2019年2月27日星期三

Liquid ring vacuum pump manufacturer

In addition to the original B-A ultra-high vacuum gauge, the full-pressure side of the ultra-high vacuum system has developed many extremely high vacuum gauges, such as cold cathode magnetic control gauges, suppression gauges and bend gauges. But for many research work, it is not enough to rely solely on full pressure data.

For example, adsorption, condensation, desorption processes, etc. in vacuum systems involve the interaction of the surface of the vessel with the material inside the system and residual gas molecules. At this point, obtaining data on the gas composition and partial pressure in the system is more telling than the full pressure data. Gas analysis and partial pressure measurement under vacuum conditions are usually performed by a dynamic mass spectrometer. If the solid medium is contained in the medium to be transported, a filter should be added to the pump inlet: if it contains ferromagnetic particles, a magnetic filter is required. The ambient temperature of the water ring vacuum pump should be less than 40 °C during use, and the motor temperature rise should not exceed 75 °C. After 1000 hours of normal operation of the magnetic pump, the wear of the bearing and the end moving ring should be dismantled, and the wearing parts that are not suitable for reuse should be replaced. The conveying liquid is a medium that is easy to precipitate and crystallize. After use, it should be cleaned in time. liquid.water-ring-vacuum-pump-and-compressor-for-vacuum-packing

The vacuum pump must be kept clean at all times. No other objects should be placed on the vacuum pump. Do not block the passage around the vacuum pump for maintenance and operation. Always pay attention to the tightness of the V-belt and adjust it. Always pay attention to whether there is air leakage at each pipe joint and pre-vacuum inside the box. Whether it has dropped, otherwise it should be repaired in time; always pay attention to whether the cooling water is unblocked; every time you drive, you should start 4-6 times intermittently, within 2s each time to overcome the large torque at startup.liquid-ring-vacuum-pump-for-Glass-Reactors




Liquid Ring Vacuum Pump Market

The liquid ring vacuum pump is a kind of coarse vacuum pump. The maximum vacuum it can obtain is 2000-4000Pa. The vacuum degree of the unit composed of the liquid ring vacuum pump and the vacuum pump can reach 1-600 Pa. The liquid-ring vacuum pump can also be used as a compressor, called the liquid-ring compressor, which is attributed to the low-pressure compressor, and its pressure planning is 1-2*105Pa gauge pressure.rotary-liquid-ring-vacuum-pump-for-chlorine-compression

In recent decades, China's construction machinery has formed a sound professional system, and has become the top production and marketing country in the list of construction machinery. However, after a high-speed development stage, China's domestic construction machinery market stock equipment saturation is higher, construction machinery company operating pressure is increased, the industry competition is aggravated and the prosperity continues to decline. In this environment, if China's construction machinery companies want to continue to make a living, it is necessary to open up post-market and expand business planning in many ways.liquid-ring-vacuum-pump-in-industry-factory


Even if measured by the average level of all industries, the performance indicators of machinery industry are beyond the usual performance. In the first half of the year, the total profit of industrial companies above the national planning level reached 2864.98 billion yuan, an increase of 11.4% over the same period last year, and the profit rate of the main business income of industrial companies above the national planning level was 5.57%. By comparison, the profit growth rate of machinery industry is about 8.1 percentage points higher and the profit interest rate is nearly 1.3 percentage points higher.high-pressure-liquid-ring-vacuum-pump-for-oil-drilling






2019年2月26日星期二

liquid ring vacuum pump Application

The liquid ring vacuum pump is a common pump, which plays an important role in our production and life. It has the advantages of easy operation, high efficiency and low operating cost. This makes this equipment widely used. Here is the introduction of its use. You can take a look at it together if you want to know.

1. Application in electric power industry: condenser vacuum pumping, vacuum water absorption, flue gas desulfurization, vacuum exhaust and geothermal exhaust.

2. Application in petrochemical industry: gas recovery, gas recovery, gas boost, enhanced oil recovery, gas collection, crude oil stabilization, flammable and explosive gas compression, vacuum system at the top of tower in crude oil vacuum distillation, vacuum crystallization and drying, vacuum filtration, vacuum transportation of various materials.Vacuum-Pump-in-Paper-Industry

3. Application in manufacturing industry: drying, reactor drying, distillation, degassing, crystallization, material transfer.


4. Application in pulp and paper production: black liquor evaporation, crude pulp washer, lime slurry and filter, sediment filter, vacuum dewaterer, raw material and white water degassing system, mixing box compressor, suction box, suction roll and transfer roll, vacuum press, wool suction box, anti-blower box.

5. Application in plastics industry: extruder degassing, setting table (profile), EPS foaming, drying, pneumatic conveying device, vinyl chloride gas extraction and compression.Liquid-Ring-Vacuum-Pump-Application-Industry

6. Application of instruments: steam sterilization, breathing apparatus, pneumatic mattress, protective clothing, dental instrument, central vacuum system.

7. Application in environmental protection industry: wastewater treatment, biogas compression, vacuum water addition, wastewater purification/activated sludge tank oxidation, fish pond ventilation, biogas recovery, waste disposal machine.

8. Application in food and beverage industry: salmon cleaner, mineral water degassing, salad oil and fat deodorization, tea and condiment sterilization, sausage and ham production, tobacco products humidification, vacuum evaporator.liquid-ring-vacuum-pump-of-vacuum-packing





2019年2月25日星期一

liquid ring vacuum pump Selection

As a device, the liquid ring vacuum pump is also the basis of engineering operation, so whether it works normally will directly affect the progress of the operation, so the choice of equipment is very important. In addition to its own quality, its model also needs to be considered, for everyone to better. The selection of the following, Xiaobian for everyone to put forward a little advice - on the selection of equipment:

1. Flow rate is one of the important performance data of the pump selection, which is directly related to the production capacity and conveying capacity of the entire device. For example, the normal, minimum and maximum flow rates of the pump can be calculated in the design of the design institute. When the pump is selected, the normal flow rate is based on the maximum flow rate. When there is no maximum flow rate, 1.1 times the normal flow rate can be taken as the maximum flow rate.

2. The head required for the liquid ring vacuum pump system is another important performance data of the pump selection. Generally, the head should be selected by amplifying the 5% to 10% balance.


3, liquid properties, including liquid media name, physical properties, chemical properties and other properties, physical properties are temperature c density d, viscosity u, solid particle diameter and gas content in the medium, etc., which involves the lift of the system, effective gas Calculation of the amount of eclipse and the type of suitable pump: chemical properties, mainly refers to the chemical corrosiveness and toxicity of the liquid medium, is an important basis for the selection of the pump material and the type of shaft seal.

4. The pipeline layout conditions of the equipment system refer to the data of the liquid feeding height, the liquid feeding direction, the suction side, the lowest liquid level, the highest liquid level on the discharge side, and other data and pipe specifications and their lengths, materials, pipe fittings specifications and quantities. Etc., in order to carry out the calculation of the combing process and the checking of the NPSH.Rotary-vane-vacuum-pump-in-oil-plant

5. There are many operating conditions, such as liquid operation T saturated steam force P, suction side pressure PS (absolute), discharge side container pressure PZ, altitude, ambient temperature operation is gap or continuous, pump position is fixed Still removable.

That is to say, the selection of the liquid ring vacuum pump should be considered according to the liquid delivery amount, the device head, the liquid property, the pipeline arrangement and the operating and operating conditions, so that the appropriate model can be selected, which not only improves the progress of the project, but also the device itself. Protection can extend its service life, and it is hoped that relevant workers can make the right selection.Rotary-vane-vacuum-pump-in-coal-processing




2019年2月19日星期二

Water ring vacuum pump in paper mill

The water ring vacuum pump uses water as a medium to complete energy conversion. Water is both a working fluid and a sealing fluid. During the working process of the water ring pump, the work generates heat, which causes the working water temperature to rise, and a part of the water and gas are discharged together.vacuum-system-for-the-paper-industry

Therefore, it is necessary to continuously supply water to the pump to cool and replenish the water consumed in the pump, to maintain the formation of a normal working water ring, and to meet the working requirements of the pump. Since it is necessary to continuously replenish water, it is also permissible to bring some water from the pumped gas. In fact, the water ring vacuum pump is also widely used to pump water containing water.Roots_Vacuum_Pump


Therefore, when the water ring vacuum pump is working, in addition to water from the pump water supply line, it is also possible to feed some water from the suction port. If the vacuum pump uses a separate shaft seal external water supply line, it is also possible to flow a small amount of water from the shaft seal. This is generally the case with water ring vacuum pumps used in paper mills where water enters the pump from the pump supply line, inlet and shaft seals. The water that enters the pump from different ways does not work well as a supplemental water to meet the pump's working needs. The water that enters the pump for abnormal work will have a negative impact on the performance of the pump.liquid_ring_vacuum_pump





latest rotary vane vacuum pump

The newly developed rotary vane vacuum pump of our company is a vacuum pump equipment with compulsory oil prohibition. It solves the phenomena of oil return and injection before and is recognized by the majority of users. This rotary vane vacuum pump has the following characteristics:

1. Fully sealed structure

The C-type direct-coupled pump is the only rotary vane pump in the world that seals the motor in the oil tank. This structure will completely eliminate the possibility of shaft end leakage, and almost all rotary vane vacuum pumps in China have oil leakage problems.rotary-vane-vacuum-pumps

2. Air ballast valve with air cushion adjustment

Air cushion is an effective means of eliminating pump noise, and the function of adjustable air cushion is taken into account in the structure design of the air ballast valve of the pump. An independent system on the air ballast valve can adjust the air volume of the air cushion. In actual debugging, we obviously feel the importance of this structure for noise reduction.


3. The protection function of the pump is complete.

The pump itself is equipped with an exhaust stop valve, which is controlled by a solenoid valve, and the electric energy required by the solenoid valve is supplied by the generator with the motor. In this way, whether the motor moves or not determines whether the generator generates electricity and whether the solenoid valve operates or not. In addition, the pump also has an overload protection switch. Once the pump is stuck or overloaded, the motor current will rise abnormally. At this time, the protection switch will automatically cut off the power supply. From a usage point of view, this function is very useful.piston-vacuum-pump-structure


4. The pump has a wide range of applications.

Applicable to 50HZ, 60HZ and three-phase 220V, 380V power supply system. One of the reasons for the strong steam drainage capacity of the pump is that it can still maintain a high vacuum in the gas town. The other is that the oil temperature is high, and the oil temperature is above 80 C in normal operation. With such a high oil temperature and an effective gas town, the steam drainage capacity of the pump is greatly improved. In particular, it is worth mentioning that the pump can become a halogen-resistant vacuum pump as long as synthetic oil is selected.liquid-ring-compressor





2019年2月18日星期一

Liquid ring vacuum pump and liquid ring compressor

The working principle of the liquid ring vacuum pump and the liquid ring compressor is exactly the same. The basic type and structure are also the same, but there are different places. In order to make everyone better distinguish the two products, the following article will explain in detail. There are five differences in the following:rotary-vane-vacuum-pumps

1, the impeller circumferential speed range is different
The peripheral speed of the impeller is mainly determined by the pressure difference between the suction chamber and the compression chamber. Since the suction pressure of the compressor is generally atmospheric pressure, and the discharge pressure of the vacuum pump is generally atmospheric pressure, the pressure difference of the compressor is large, and the required peripheral speed is also large. When the same water ring pump is used as a vacuum pump and when it is used as a compressor, the performance of the vacuum pump is different. When the vacuum pump is used as a compressor, the speed can be increased economically.


2, the optimal compression ratio range is different
The so-called optimal compression ratio, that is, the compression ratio at a higher efficiency. In general, the optimum compression ratio of a vacuum pump is higher than that of a compressor.

3, the shaft power is different
The same size of the water ring pump, the effective power when used as a compressor is larger than the vacuum pump, and the current peripheral speed of the impeller is generally selected according to the requirements of the vacuum pump, so that when used as a compressor, it is operated in an inefficient area. The required shaft power is even greater. Therefore, the power of the compressor is larger than that of the vacuum pump.piston-vacuum-pump-structure

4, the structure of the gas water separator is different
The gas-water separator of the vacuum pump is flat-topped, the overflow pipe is a common water pipe, and the top of the gas-water separator of the compressor is spherical, and the overflow pipe is controlled by a float regulating valve to prevent the water level from being below the overflow pipe. The compressed gas escapes, reducing gas pressure and effective gas volume.

5, the size of the vent hole is different
At the same size, the venting port of the compressor is smaller than that of the vacuum pump.rotary-vane-vacuum-pump-for-vacuum-coating




Water ring vacuum pump and rotary vane vacuum pump

Water ring vacuum pump and rotary vane vacuum pump are commonly used in industry, and they have similarities in some fields, so people can not choose their own products. But after understanding the difference between the two, it is helpful for us to choose and buy. The main differences between them are as follows:

1. water ring vacuum pump working process:

It needs external cooling water in its working process. The process of working medium transferring energy is as follows: in the process of suction, working medium increases the speed of movement (thus gaining kinetic energy from impeller) driven by impeller, flows out from impeller, and sucks gas from suction port; in the process of compression, working medium velocity decreases, and returns to impeller, pressure rises, and gas is absorbed. Compressed. It can be seen that during the whole working process, the working medium receives the mechanical energy from the impeller and converts it into its own liquid kinetic energy, then the liquid kinetic energy is converted into the pressure energy of the liquid, and the gas is compressed to do work, so that the liquid energy is finally converted into the energy of the gas.rotary-vane-vacuum-pump-buying-guide

2. rotary vane vacuum pump working process:

Rotary vane vacuum pump and water ring vacuum pump are opposed to prohibit the suction of gas containing water or steam, such as containing water will pollute the vacuum oil inside the rotary vane vacuum pump, inverted vacuum pump injection vacuum degree can not reach, long time will damage the vacuum pump components.liquid_ring_vacuum_pump


Types and characteristics

1. Types and characteristics of rotary vane vacuum pumps

Rotary vane vacuum pump mainly includes: Rotary vane vacuum pump is one of the basic equipment used to extract the gas from the closed container. It can be used alone or as the first parts of booster pump and molecular pump. This type is widely used in vacuum pump smelting, vacuum plating, vacuum heat treatment and vacuum drying in metallurgy, machinery, electronics, chemical industry, petroleum, medicine and other industries.

2. Types and Characteristics of Water Ring Vacuum Pumps

Water-ring vacuum pumps mainly include SK water-ring vacuum pump, ska direct-connected vacuum pump, 2SK double-stage water-ring vacuum pump and 2BV stainless steel water-ring vacuum pump. These pumps are mainly used in the process of rough vacuum and large air-pumping capacity. The vacuum pumps made of cast iron mainly pumps non-corrosive gases. The new stainless steel and glass steel can transport corrosive gases.Roots_Vacuum_Pump






2019年2月17日星期日

Liquid Ring Vacuum Pump and Liquid Ring Compressor Working Principle

The working principle of the liquid ring vacuum pump and the liquid ring compressor are exactly the same, and the basic types and structures are roughly the same, but there are also different places. In order to make a better distinction between the two products, the following article explains in detail for you, the following five aspects are different:rotary-vane-vacuum-pumps

1. The circumferential velocity range of impeller is different.

The circumferential velocity of the impeller is mainly determined by the pressure difference between the suction chamber and the compression chamber. Because the suction pressure of the compressor is generally atmospheric pressure, and the exhaust pressure of the vacuum pump is generally atmospheric pressure, the pressure difference of the compressor is large, and the circumferential speed required is also large. The performance of the same water ring pump is different when it is used as a vacuum pump and a compressor. If a vacuum pump is used as a compressor, it can work economically only if the rotational speed is increased accordingly.liquid-ring-vacuum-pump-buying-guide

2. The range of optimal compression ratio is different

The so-called optimal compression ratio is the compression ratio at higher efficiency. Generally speaking, the optimal compression ratio of vacuum pump is higher than that of compressor.

3. Shaft power is different

The effective power of the same size liquid ring vacuum pump is larger than that of the vacuum pump when it is used as a compressor, and the circumferential speed of the impeller is generally selected according to the requirements of the vacuum pump at present. Thus, when it is used as a compressor, it is in the low efficiency zone and the required shaft power is larger. Therefore, the power of the compressor is larger than that of the vacuum pump.

4. Different structures of gas-water separators

The air-water separator of vacuum pump is flat-top, the overflow pipe is ordinary water pipe, and the top of the air-water separator of compressor is spherical. The overflow pipe of vacuum pump is controlled by a float regulating valve, so as to prevent the compressed gas from escaping when the water level is below the overflow pipe, and reduce the gas pressure and effective gas quantity.

5. Different sizes of exhaust holes

At the same size, the exhaust hole of the compressor is smaller than that of the vacuum pump.piston-vacuum-pump-structure




Roots vacuum pump application in the paper industry

Generally speaking, the pumping capacity of the standard specified in the paper production line is certain, but in order to reduce energy consumption and save production costs, the selection of the vacuum pump is particularly important. For the paper industry, the Roots vacuum pump is usually used instead of a water ring vacuum pump. Therefore, comparing the economic benefits of the Roots vacuum pump and the water ring vacuum pump is the primary problem for paper manufacturers. Of course, this will also involve the selection of the Roots vacuum pump.

The application of vacuum pumps to effectively reduce papermaking costs and improve paper quality is a good hope for Kaide Vacuum Technology. Today, I will tell you about the application and selection of Roots vacuum pumps in the paper industry. In the process of pulp and paper technology, the vacuum dewatering method can be applied to the dehydration process, and the vacuuming by the Roots vacuum pump is a common method for papermaking dewatering.


In the process of which papermaking process, vacuum dewatering is required:

1, coarse pulp washer

The drum-shaped interior of the washer is capable of creating a vacuum that allows the material to adhere to the drum surface and allow the black liquor to be washed from the material while the drum is operating in the stock slurry.

2, sediment filter

A sediment filter in a pulp and paper mill is a horizontal drum filter in which a vacuum condition can be generated inside the drum to collect particles from the green liquor.vacuum-pump-buying-guide


3, vacuum dehydrator

The vacuum dewatering machine can be used for dewatering in the raw material preparation stage. It is a horizontal drum filter that achieves proportional dewatering from pulp and increases the concentration of raw materials.

4, the pulp box compressor or vacuum pump

The headbox compressor or vacuum pump is used in the slurry tank. Through a series of valves, a pressure or vacuum can be added to the raw material tank of the headbox to control the material discharge rate.

5, suction box

The suction box is applied to the forming section of the paper and can be directly dewatered from the pulp. The Roots vacuum pump is used to produce vacuum conditions in the suction box vacuum box.liquid_ring_vacuum_pump

6, the roller

The couch roll is an important dewatering section in the paper forming stage and is stationary with a rotatable porous casing that can have one or two vacuum zones.

7, vacuum pressing

The vacuum press mechanically extracts moisture from the paper. Paper machines typically have one to three press zones where the moisture is absorbed into the press felt as the paper transports and pads.Roots_Vacuum_Pump

8, blowout prevention box

The blow-proof box is fixed before the paper is transferred into and can be used to create a vacuum in the upper region of the press section.

Vacuum pumps are widely used in the paper industry, and Roots vacuum pumps have a good performance in this industry.




2019年2月14日星期四

Vacuum pump installation conditions

In the general enterprise production, the vacuum pump needs to be set to the pump house when it is used. Only the set is qualified, and the working effect will be stronger when it is used. Below we vacuum pump manufacturer will introduce the pump room setting for everyone. conditions of.rotary-vane-vacuum-pumps

1. The elevation of the bottom plate of the pump room of the vacuum pump: when the pump is stopped, the water level of the collecting pool is lower than the central axis of the sewage water pipe by 1m, and the water depth is set to 2m, so the pumping floor floor height is 23.30m.

2. Set 4 submersible pumps in the pump, the pump distance is 3m, and the pump room length is 20m.


3. It should be composed of machine room and collecting basin. The width between machines is 4.2m, and the width of collecting water is 4.3m.

4. The machine is divided into 2 compartments. One HZPN-II 1.5m*1.5m cast iron plate gate is set, and the trash net is set at 2.5m from the side wall.

5. The length of the collecting well is 20m, the width is 4.3m, the water depth is 2m, the effective volume is 172m3 (not counting between machines), and the pumping capacity is more than 127m3 for 5min of single pump.piston-vacuum-pump-structure

6. Set 2 SV064B submersible slurry pumps in the catchment, 1 for use, and the vacuum pump is placed in the dirt collection pit with a ground elevation of 20.75m.

For the vacuum pump, the pump room setting is very important. If there is no pump room, the vacuum pump can't work, so we should understand the above knowledge.liquid-ring-vacuum-pump-for-vacuum-drying

Vacuum pump repair skills

If your vacuum pump has some minor problems during use, and it takes time and effort to go to the repair shop, you can try to repair your equipment yourself. Then, what are some small tricks that can help us to repair and inspect us? What about the vacuum pump?Roots_Vacuum_Pump

1. The operator should understand the various parts of the exterior, pumps and equipment, and read and understand the various instructions;

2. If there is abnormal condition after power on, it should be immediately swept or stopped to find the reason;

3, the cooling water pressure should be between 0.1 ~ 0.2Mpa, the water temperature ≤ 45 ° C;


4. Before starting the furnace, check the gas cylinder capacity of the maintenance gas to avoid the lack of gas filling and replace the gas cylinder;

5, often check the return amount of each part, the operation should ensure that each part has enough cooling water;liquid_ring_vacuum_pump

6. The compressed air pressure is between 0.4 and 0.5 MPa.

In addition, in daily production and life, the bolts of various parts of the vacuum pump are regularly viewed, and if loose, they are tightened in time.

how-to-choose-best-vacuum-pump-for-your-industry






2019年2月13日星期三

Roots vacuum pump maintenance

We all know that the long-term efficient operation of the Roots vacuum pump is based on regular maintenance, so the maintenance of the equipment can not be ignored, including the cleaning of dirt and the maintenance of components, in which its exhaust filter will directly affect the equipment. Normal operation, so the maintenance of this part is important:liquid-ring-vacuum-pump-vacuum-adsorption

1. Cleaning: Roots vacuum pump exhaust filter is made of special materials, it is relatively easy to damage, so it needs maintenance. After using for a period of time, the vacuum filter element has already retained some filtered impurities. If it is not cleaned up in time, if it continues to be used, it will increase the pressure, and the transmitter will remind the alarm, then it needs to be cleaned up. And clean the vacuum pump exhaust filter. Also be careful not to deform or damage the filter element during cleaning, otherwise it will affect the reuse, and will also reduce the efficiency of filtration and even destroy the entire system.rotary-vane-vacuum-pumps

2. Replacement: When replacing the Roots vacuum pump exhaust filter, prepare the basin and towel in advance. The general vacuum pump filter has a method for replacing the vacuum pump exhaust filter. Everyone must replace it according to the standard method, so as not to damage the filter element and increase the service life of the exhaust filter.piston-vacuum-pump-structure


After reading the above maintenance methods for the Roots vacuum pump exhaust filter, I believe that everyone has further understanding of this equipment. In the future use of the equipment, we must not forget to check the important parts, and solve the problems in time. A method of increasing the life of a device.






liquid ring vacuum pumps material requirements

 liquid ring vacuum pump is a kind of equipment that puts the pump body into the water for pumping. Its use is very extensive in our life. However, due to the particularity of its working environment, there are certain requirements for its material. The following is a small series according to the relevant The information is summarized by everyone about the material requirements of the liquid ring vacuum pump:

1. Good chemical stability. The material of the water ring vacuum pump should have strong anti-oxidation and anti-corrosion ability, and does not react chemically with the working medium in the equipment and the gas discharge during the process.

2. The material of the other equipment must have good ductility, mechanical processing performance and welding performance, and it is easy to process into a complex shape shell.liquid-ring-vacuum-pump-in-petrochemical-industry

3. At the working temperature and baking temperature, the saturated vapor pressure should be low enough.

4, to have sufficient mechanical strength and rigidity, so as to ensure that the shell can withstand greater atmospheric pressure, can not be deformed during heating and baking.

5. Under the working vacuum and working temperature, the components inside the vacuum vessel should maintain good working performance.Roots_Vacuum_Pump


6, good thermal stability. Maintains good vacuum and mechanical properties throughout the system's operating temperature range.

7, good air tightness. In operation, it should be kept under a high vacuum environment, so the material of the wall should not have porous structure, cracks or other defects forming leakage, and the permeation rate and outgassing rate should be low.

The material requirements for the liquid ring vacuum pump are the above points, that is to say, the material has a certain strength and stability, and since it is a vacuum device, it requires a good air tightness, so that the device can be further protected. Runs efficiently and efficiently.liquid_ring_vacuum_pump






2019年2月12日星期二

piston vacuum pump common sense

The sliding piece is embedded in the groove and can slide freely. When the rotation occurs, the sliding piece is sucked onto the pump casing by centrifugation. The sliding plate pump is a volumetric pump, and the adjacent two sliding pieces move to the lower side and the pump. The shell and rotor block the smallest volume, the largest at the top, when the rotor rotates clockwise, the process of the adjacent two slides from the bottom to the top is the volume increase process, so the oil absorption (from the fourth quad to the second Quadrant); from the top to the bottom is the volume reduction process, so the pressure oil (from the second to the fourth quadrant).rotary-vane-vacuum-pumps

Double acting: When the motor drives the rotor to rotate, the sliding piece protrudes outward under the double action of the centripetal force and the pressure oil at the bottom of the sliding piece, and the top is closely attached to the inner and outer parts of the stator. The four sliding vanes on the four-section concentric arc form four sealed working oil chambers with the rotor surface surface, the inner and outer surfaces of the stator and the two distribution plates. These oil chambers change from small to large or large to small as the rotor rotates, and can pass through the oil suction window of the distribution plate (connected to the oil suction port) or the oil discharge window (connected to the oil discharge port). Inhale or pressurize the oil.

During each revolution of the rotor, each working oil chamber completes two oil suction and oil pressure, so it is called double-acting piston vacuum pump. Because the upper and lower pressure chambers are symmetric with each other, the shaft is balanced by force and is unloading.


    The piston vacuum pump is equipped with small power and large flow. It is the best choice for gas stations, oil depots, chemical industry, oil refinery, aviation kerosene and steam refueling.piston-vacuum-pump-structure

Single action: the sliding piece is embedded in the groove and can slide freely. When the rotation occurs, the sliding piece is sucked onto the pump casing by centrifugation. The sliding plate pump is a positive displacement pump, and the adjacent two sliding pieces move to the lower side. The volume with the pump casing and the rotor is the smallest, and the largest at the top. When the rotor rotates clockwise, the process of the adjacent two slides from the bottom to the top is the volume increase process, so the oil absorption (from the fourth quadrant) To the second quadrant); from the top to the bottom is the volume reduction process, so pressurize the oil (from the second to the fourth quadrant).

Double acting: When the motor drives the rotor to rotate, the sliding piece protrudes outward under the double action of the centripetal force and the pressure oil at the bottom of the sliding piece, and the top is closely attached to the inner and outer parts of the stator. The four sliding vanes on the four-section concentric arc form four sealed working oil chambers with the rotor surface surface, the inner and outer surfaces of the stator and the two distribution plates. These oil chambers change from small to large or large to small as the rotor rotates, and can pass through the oil suction window of the distribution plate (connected to the oil suction port) or the oil discharge window (connected to the oil discharge port). Inhale or pressurize the oil. During each revolution of the rotor, each working oil chamber completes two oil suction and oil pressure, so it is called double-acting sliding vane pump. Because the upper and lower pressure chambers are symmetric with each other, the shaft is balanced by force and is unloading type. The sliding vane pump is equipped with small power and large flow. It is the best choice for gas stations, oil depots, chemical industry, oil refinery, aviation kerosene and steam refueling.liquid-ring-vacuum-pump-installations







Vacuum Pump System in Electric Vacuum Industry

Because the working principle of various electric vacuum devices is based on electric field and magnetic field to control the movement of electrons in space so as to achieve the purposes of amplification, oscillation and image display.liquid_ring_vacuum_pump

Therefore, the vacuum pump system can prevent the collision between electrons and gas molecules, ensure the movement law of electrons in space, avoid cathodic oxidation poisoning of emitting hot electrons, pump the electronic devices into different vacuum required by different vacuum devices, and ensure the normal operation of electronic devices.buy-water-ring-vacuum-pump


At present, the main electrovacuum devices consumed in the electrovacuum industry are various kinds of electronic tubes (rectifier, transmitter, receiver, klystron, traveling wave tube, magnetron, photoelectric tube, etc.); various ion tubes (pump-arc rectifier, igniter, counter, thyratron, noise tube, radar wire switch, etc.); various electron beam tubes (oscilloscope, vidicon, vidicon, X-ray tube, etc.). Various electric light source tubes (illumination lamp, spectral lamp, instrument lamp, etc.) and neutron tube, electron diffractometer, electron microscope, X-ray microscope, various particle accelerators, mass spectrometers, nuclear radiation spectrometers, gas lasers and the application of electron beam in vacuum to stop degassing, smelting, regional purification, solidification and drilling of refractory metals and media, slotting, cutting, and drilling. Evaporation of radioisotopes, welding of refractory metals, etc. These electronic devices and processes play an obvious role in modern science and modern industrial consumption.Roots_Vacuum_Pump









2019年2月11日星期一

Roots Vacuum Pump Technology

The company has a strong technical team, in view of the Roots vacuum pump application ability and so on, has carried on the effective promotion for the overall product production, as the product reliability performance guarantee, the technical strength is the final manifestation of the inspection product application effect, but also promoted the enterprise productivity performance, this excellent performance advantage has led to the overall development of Roots pump. Advantages, but also for the enterprise in the vacuum industry to effectively enhance the visibility, the most important thing is to develop safe and reliable products and equipment for users, and enhance the ability to develop in an all-round way.liquid-ring-vacuum-pump-sale
Facing the development of Roots Vacuum Pump, it is also very important to promote the technology. In the centralized embodiment of the basic construction of products, we can increase the development of product performance through the continuous promotion of product application ability, and achieve the performance of the overall advantages of Roots Pump by scientific management. As for the future development of enterprises, we can optimize and improve the products. Only in this way can we improve the overall direction of product development.rotary-vane-vacuum-pumps


From the point of view of the company's development, the overall advantage of Roots vacuum pump is very important to the whole production strength, which also reflects the improvement of product application ability, and fully proves the depth of technology research ability, effectively exerting the realization of product strength application ability.liquid_ring_vacuum_pump





What is Roots Vacuum Pump

Roots vacuum pump first appeared in Germany in 1944. The invention injected a new impetus into German industry, promoted the economic development of German industry, provided a large number of excellent equipment for their domestic oil, chemical, pharmaceutical, papermaking, bio-fermentation, food, electronic metallurgy and other industries, and attracted great attention from other countries. Up to now, in the field of Roots vacuum pump, a group of senior vacuum experts have emerged, integrating domestic and foreign vacuum application design concepts, realizing the computerization of unit design. All drawings are optimized, and innovative new products are developed by using excellent processing equipment.liquid-ring-vacuum-pump-in-salt-production-process

As we all know, Roots vacuum pump and Roots blower are very close in structure and working principle. When it works, the suction port is connected with the main pump of the vacuum vessel or the vacuum system. Roots vacuum pump has many advantages: starting speed is faster than other vacuum equipment, energy consumption is less, pumping speed is larger than other vacuum equipment, efficiency is higher, and it is not sensitive to water vapor and dust contained in the pumped gas, which is very conducive to people's operation.Roots_Vacuum_Pump


At present, Roots vacuum pump has been widely used in vacuum smelting, degassing, rolling, as well as chemical, food and pharmaceutical industries. Although there is a certain gap between domestic and foreign development level of Roots vacuum pump, there is a great development prospect in China's industry, because with the deepening of industrialization, the demand of Roots vacuum pump is constantly increasing and the future is boundless.rotary_vane_vacuum_pump






2019年2月10日星期日

Oil Sealed Vacuum Pump

Some vacuum processes will produce a lot of dust. If dust is mixed with the pumped gas into the oil seal vacuum pump, it will accelerate the wear of parts in the pump chamber like abrasive, cause wear and damage to the pump rotor and pump chamber, block the oil pipeline or make the pump unable to operate. If dust enters the vacuum valve, the seal will fail and leak out. Therefore, the prevention and filtering of dust has been completed. In order to prolong the service life of vacuum system and improve productivity, dust filter must be used in dusty vacuum system.Roots_Vacuum_Pump


When the dust volume is small, it can be filtered by the pump oil filtration system. But when the dust volume is large, in order to prevent the damage of the vacuum pump and ensure the normal operation of the vacuum pump, the dust collector must be used.rotary-vane-vacuum-pump-in-brewing-industry.
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Water ring vacuum pump in fire fighting equipment

Water ring vacuum pump belongs to the category of volume pump. In fire protection, it is matched with centrifugal pumps to drain water for centrifugal pumps.liquid_ring_vacuum_pump

Water ring vacuum pump consists of pump body, pump shaft, impeller, suction port and exhaust port. The cross section of the pump chamber is round, and the impeller is eccentrically arranged in the pump chamber. A certain amount of water is introduced into the pump chamber. By rotating the bias impeller in the pump chamber, the volume of the crescent cavity composed of the water ring attached to the inner wall of the pump chamber and the impeller changes periodically, so as to realize the exhaust and water diversion. When the impeller is in a static state, the water is in the lower part of the pump chamber. When the impeller drives the water to rotate, due to centrifugal action, the water is thrown around by the impeller, forming an equal thickness water ring attached to the inner surface of the pump chamber. The crescent cavity formed between the impeller surface and the water ring consists of several chambers with different volumes. Because the impeller is installed eccentrically, the volume of each chamber increases and decreases periodically with the rotation of the impeller, and the gas pressure in each chamber decreases and increases accordingly. When each chamber rotates through the suction and exhaust ports, it automatically realizes the functions of suction, compression and exhaust due to the effect of pressure difference, so that the centrifugal pump can discharge air and start water diversion and drainage.rotary-vane-vacuum-pumps



The water ring pump has the advantages of simple structure, reliable operation, uniform suction, small wear and tear, and long service life. The disadvantage is to add water to the shell before starting. Water storage tanks need to be installed, occupying a larger space. In severe winter, attention should be paid to prevent the freezing of water in the tank.vacuum-pump-vacuum-distillation