Characteristics of large vacuum pump and micro vacuum pump

With the rapid development of China's economy, the demand for vacuum pump in industry and other fields is growing. In the face of fierce competition in the vacuum pump market, how should users choose their products? What is the difference between large vacuum pump and micro vacuum pump. 

The characteristics of large vacuum pump: high power, high limit vacuum, but high price, large volume, large weight, high noise, high energy consumption, need regular maintenance, not easy to move, etc. Some must use vacuum pump oil or lubricating oil, which will produce oil mist in work, but it will be wasted in low vacuum situation. For example, in the laboratory, only a small amount of gas needs to be sampled, analyzed, circulated, vacuum adsorbed, gas transferred, pressurized, indirectly absorbed water and drained by pump, many disadvantages of large vacuum pump have been exposed. So how to reduce these shortcomings is a very difficult job for professional staff, but it is still worth our expectation.

Micro vacuum pump features: small size, low noise, low power consumption, easy to operate, easy to carry, maintenance free, 24-hour continuous operation, also allows the medium rich in water vapor. The most important thing is that it is dry and oil-free and does not need vacuum pump oil or lubricating oil, so it will not pollute the working medium and interfere with the analysis of medium. And the price is much cheaper.

Water Ring Vacuum Pump

Dry Scroll Vacuum Pump

industrial vacuum pumps,vacuum furnaces

stainless steel vacuum pump working principle

With the needs of social work, stainless steel vacuum pump is constantly popular production, more and more people contact the use of it, the understanding of it also began to deepen, at the same time, there are many want to understand the problem. The following is the working principle of stainless steel vacuum pump.

During the operation of stainless steel vacuum pump, due to the centrifugal force, water forms a closed ring which is approximately equal in thickness and is determined by the shape of pump chamber. The upper inner surface is just tangent to the impeller hub, and the lower inner surface is just in contact with the tip of the blade. At this time, a crescent shaped space is formed between the impeller hub and the water ring, and this space is divided into several small cavities with the same number of blades by the impeller. If the upper 0 ° of the impeller is taken as the starting point, then the volume of the small cavity increases from small to large when the impeller is 180 ° before rotation, and it is connected with the suction port on the end face. At this time, the gas is inhaled, and when the suction is finished, the small cavity is connected with the suction When the impeller continues to rotate, the small cavity becomes smaller, so that the gas is compressed; when the small cavity is connected with the exhaust port, the gas is discharged from the stainless steel vacuum pump.


CL Sereis Cone Liquid Ring Vacuum Pump

Roots Blowers

Roots Vacuum Pump 

Lubrication and maintenance of vacuum pump

The vacuum pump in use will produce more or less friction, we need to constantly lubricate it to keep it in good working condition, and after use, we need to maintain it for a longer time. 

Under normal working conditions, the waste grease and its dirt in the bearing and accessory space should be removed and new grease should be added after the rotating speed is 20000 h or the longest 3 years. The additional grease should account for 50% of the bearing free space and 65% of the bearing cover space. If the working conditions are very bad, the grease change cycle should be shortened accordingly.

1. If hard water is used as working fluid, it can only be used after softening treatment, or the pump can be cleaned with solution within a certain period (in order to avoid abrasion of impeller, pump body or impeller jamming, dust particles entering pump cavity along with gas and working fluid shall be washed through the flushing port at the bottom of pump cover; if hard water is used as working fluid, hard water shall be softened or periodic solvent shall be used to flush vacuum pump ）。

2. The temperature of the bearing in normal operation of the motor is 15 ℃ - 20 ℃ higher than the surrounding temperature, and the maximum temperature is not allowed to exceed 55 ℃ - 60 ℃.

3. Always pay attention to check the running state of the vacuum pump and observe whether the rotation of the shaft and bearing is stable. In case of instability or jamming, the relevant parts shall be replaced and repaired immediately.

4. In case of leakage of the mechanical seal used, check whether the dynamic and static rings of the mechanical seal have been damaged, or the seal ring is aging. In case of the above situation, new parts need to be replaced.


Water Ring Vacuum Pump

Dry Scroll Vacuum Pump

industrial vacuum pumps,vacuum furnaces

Characteristics of high pumping speed of single stage rotary vane vacuum pump

Single stage rotary vane vacuum pump oil-free (corrosion-resistant) vertical reciprocating vacuum pump is an updated product of horizontal vacuum pump, and is the main equipment to obtain rough vacuum. Due to the full sealing device, the complete isolation between the crankcase and the cylinder is realized, and the self-lubricating material is used for the piston ring, so the advanced oil-free lubrication is realized. Since there is no sewage discharge, this type of vacuum pump is especially suitable for vacuum distillation, vacuum evaporation, vacuum drying, vacuum concentration and vacuum impregnation in chemical, pharmaceutical and food industries. 

During operation, driven by the motor, the piston in the cylinder moves reciprocally through the action of crank connecting rod mechanism (rotation movement changes into linear motion). When the piston moves from the left end to the right end of the cylinder, the volume of the left chamber of the cylinder is increasing, and the pressure of the left chamber space is continuously reduced. When the pressure in the left chamber space is lower than the pressure in the extracted container, according to the principle of gas pressure balance, the gas in the extracted container is continuously pumped into the left cavity through the suction valve 5, which is in the process of suction. When the piston reaches its rightmost position, the left chamber of the cylinder is filled with gas. Then the piston moves from the right end to the left end, and the suction valve 5 automatically closes. The gas is compressed as the piston moves from right to left. When the gas in the cylinder reaches the exhaust pressure, the exhaust valve 4 is opened and the gas is discharged to complete a working cycle. When the piston moves from the left end to the right end, repeat the above cycle until the extracted container reaches a certain equilibrium pressure.

Roots pump with relief valve is widely used in all aspects of vacuum acquisition. It extends the working range of mechanical vacuum pump with oil seal under low inlet pressure. It has the characteristics of small volume and large pumping speed. It has large pumping speed in the range of 1 ~ 100 Pa inlet pressure. It is especially suitable for the vacuum system which needs high pumping speed under low inlet pressure, such as power transformer, power capacitor, power capacitor, etc Vacuum drying, vacuum impregnation treatment, vacuum heat treatment, vacuum smelting exhaust, vacuum coating equipment pre pumping, large test wind tunnel exhaust and lighting lamp production line exhaust.

Vacuum Pump In Semiconductor Etching Equipment

Roots Blower Used In Mine Material Transportation

Rotary Vane Vacuum Pump In Suction Truck

Centrifugal pump technology

Centrifugal pump is the main production products, it includes stainless steel centrifugal pump, stainless steel chemical centrifugal pump, single-stage centrifugal pump, horizontal multi-stage centrifugal pump and other centrifugal pumps. To really understand the centrifugal pump, we must first understand the principle of centrifugation. Centrifugation is actually a manifestation of the inertia of any object. Centrifugal pump is precisely using this principle to work. When the pump is in operation, the pump body and inlet pipe are filled with water, forming a vacuum state. When the impeller rotates rapidly, the water will be thrown out quickly because of the centrifugal force; when the impeller continues to rotate, the water source will be continuously pressed into the penstock under the action of water pressure, maintaining the circulation state, and finally realizing continuous pumping.

In recent years, the development of domestic centrifugal pump is expected, and the speed of development is also amazing. However, behind the rapid development, there is a natural problem that can not be ignored is that domestic enterprises are busy with the development of enterprise economy, which makes this industry hover in the middle and low level, and has not been able to surpass. In this regard, the development direction of centrifugal pump is very obvious, that is to change the current weak state, so that domestic pump development to a new level.

According to the current development trend, centrifugal pump will continue to be used in many fields and industries in the future, among which the most important are environmental protection industry, water conservancy field, power station, petroleum and petrochemical industry, agricultural water conservancy construction, etc. Environmental protection industry is widely used, sewage treatment plant, industrial wastewater treatment device all use centrifugal pump, make water resources treatment more convenient. In addition, the use of centrifugal pump in petroleum and petrochemical industry is particularly prominent, which has already become an important field. Without centrifugal pump, it is almost impossible to walk.

Water Ring Vacuum Pump

Dry Scroll Vacuum Pump

industrial vacuum pumps,vacuum furnaces 

How to select the type of pneumatic diaphragm pump

First of all, the plate filter press is driven by the flow of the pump. The flow is one of the important data for selecting the pump. The selection of the pump should be based on the processing capacity and processing period of the equipment. Secondly, according to the volume of the filter chamber of the plate and frame filter press, the moisture content of the sludge after dewatering, and the sludge concentration before entering the plate and frame, the amount of sludge required for each dewatering operation of the plate and frame is converted. Then, determine a reasonable mud feeding time, such as 2-3 hours. Calculate the flow rate.

Third, pneumatic diaphragm pump material: if it is common biological sludge, ordinary cast iron or aluminum alloy material is selected, which is more economical. Other special sludge, according to the specific sludge composition, choose pneumatic diaphragm pump material, such as engineering plastic, stainless steel 304 or 316L, fully lined fluoroplastic diaphragm pump.

Dry Screw Pump In Oil Field

Vacuum Pump Unit For Biodiesel Distillation Selection

Vacuum Pump Mechanical Seal 

Function of exhaust valve in rotary vane vacuum pump

The exhaust valve plate of rotary vane vacuum pump is made of rubber pad. The exhaust valve plate needs to be immersed in the pump oil. During the exhaust process of vacuum pump, compressed air pushes open the valve plate, and the gas passes through the valve plate and exhausts. The vacuum pump oil plays a sealing role. Generally speaking, the valve plate is used to block the small hole on the disc when the vacuum pump is working. If it is broken, the small eye of the vacuum pump will leak all the time when the vacuum pump is pumping, which will not achieve the effect, and the vacuum degree will be reduced.

Some users don't like to install the valve at the suction port of the vacuum pump. They think that the vacuum pump can work well without the valve. The exhaust valve is the working part in the pump. The negative pressure of the system makes the valve plate in a tight state all the time, so the valve plate is easy to be strained, so that the service life of the pump is greatly reduced, and at the same time, the maintenance cost is not small. This problem can be avoided by installing a valve in the suction port.

Water Ring Vacuum Pump

Dry Scroll Vacuum Pump

industrial vacuum pumps,vacuum furnaces

Pollution and treatment of rotary vane vacuum pump

In the use of rotary vane vacuum pump, particles and steam or liquid constitute a nuisance of pollution.

Due to the inherent self compensation clearance adjustment function of pump mechanism, it is not particularly sensitive to small mechanism damage. In most designs, the sliding bearing chosen is less sensitive to dust than the ball bearing. Once the dust particles are separated from the oil by gravity, sediment will be generated in the oil pool, which will not participate in the oil circulation until it is removed. For these dust particles, they can be filtered by oil filter, but it doesn't seem worth it. If the pollution is serious and the replacement of filter is too complicated, it is not as simple as changing oil. Before the dust particles enter the pump, it is better to stop them in the position that can be handled.

Therefore, dry filter and oil trap are the most effective. The method of protection chosen shall depend on the volume handled, the size of the dust particles and the allowable pressure drop. In the case of abrasive dust particles, the surface hardness of pump parts should be increased to extend the service life.

Exposure to low vapor pressure is not uncommon. These substances condense in the pump, and mix with the lubricating fluid, or dilute the lubricating liquid, or into paint like and colloidal deposits. There is nothing the gas calming method can do about it. The best way is to block the steam before it reaches the pump. But in many cases, it is not appropriate to do so, because the pump works in such a wide pressure range, it is difficult to design an effective trap, or the maintenance of the well is difficult due to certain pollutants. At this time, most of them adopt the method of regular oil change.

Rotary Vane Vacuum Pumps In Compressed Air

Vacuum Systems In Plasma Spraying

Vacuum Pump In Packaging Equipment

2SK water ring vacuum pump installation

Before using SK vacuum pump, it is necessary to install it. At the same time, it is also necessary to install its air port. For the five steps of installing SK vacuum pump air port, simply understand:

1. In order to prevent welding slag from entering SK vacuum pump during installation, filter screen shall be installed on the suction pipe during installation;

2. The steam water separation circulating tank is a device for supplying water and circulating water to sk vacuum pump. There is a copper nozzle on the side of the tank body, which is connected with external water supply;

3. In front of SK vacuum pump, the upper part is the overflow port. When the liquid level in the tank is higher than a certain position, the water is discharged here. At the bottom of the cylinder is the drain valve, which is used to discharge the dirt;

4. The best use of the steam water separation circulating tank is: after the water is introduced from the side, it flows out from the overflow port. At this time, turn down the flow, let the water circulate and discharge all the time, take away the heat generated by the work, which is conducive to its vacuum degree and service life;

5. After SK vacuum pump is installed at the air port, the working fluid pipeline shall be installed, and the working fluid required in production shall be firmly connected with the working fluid supplement port.

I believe that you have already understood the installation steps of SK vacuum pump in the air port. I hope that the above knowledge will bring benefits to you and help you at the same time.

Vacuum Pump System Performance Parameters

Portable Vacuum Pump

Water Ring Pump

Selection of dry vacuum pump

The specifications and models of dry vacuum pump are various, and the manufacturers are different, and there are certain differences in the number of products. As a customer, what should we pay attention to in the whole process?

1. Whether the vibration produced during the operation of dry vacuum pump affects the process and environment. If all production processes are not allowed, choose vibration free pump or take vibration isolation measures.

2. Master the components of the steam absorber. The steam body does not contain condensate gas, water vapor, particle dust and corrosion. In the selection process, it is necessary to establish the knowledge of steam body parts and select the relative dry vacuum pump. If the steam, particulate matter and the steam body in the steam body are corroded, the mechanical equipment such as cooler, heat exchanger and dust removal equipment on the inlet pipe of the pump shall be replaced.

3. Under pressure, all steam volume caused in the whole process of vacuum technology processing shall also be discharged.

4. Make up mechanical pump properly. Because the pump has optional vacuumizing, sometimes it is not allowed to consider the vacuumizing regulations when using a pump. Several types of pumps must be combined to fill each other before the vacuumizing regulations can be considered.

5. Regulations of vacuum technology on oil environmental pollution. If there is no oil stain in the strict management of machinery and equipment, all kinds of gasoline free pumps should be selected.

6. Properly select the working position of dry vacuum pump. Each pump often has a certain range of working gas pressure, and the working position of the pump should be set in this range, which is more suitable, rather than allowing it to work for a long time under 25 ~ 30mmhg.

7. How does the discharged oil vapor harm the natural environment. If the natural environment does not allow environmental pollution, you can choose the one without oil stain or exhaust the oil vapor outdoors.

8. The limit vacuum pump of vacuum technology and the regulation of gas pressure in operation should be considered.

9. Price, transportation cost and maintenance cost of the dry vacuum pump.

Water Ring Vacuum Pump Load Of Motor Not Stable

Roots Vacuum Pump Design

How To Solve The Leakage Problem Of Water Ring Vacuum Pump

Simultaneous interpreting of different transmission modes of water ring vacuum pump

In many users in the selection of water ring vacuum pump often choose belt drive. This is not true.

In fact, there are many ways to drive the water ring vacuum pump, such as reducer drive, direct connection drive, belt drive, diesel drive and so on.

Different transmission modes, different use requirements and different configurations of the water ring vacuum pump are different. Such as small and medium-sized water ring vacuum pump, many old customers use belt drive. Compared with the belt drive, the efficiency of water ring vacuum pump is higher and more stable, and the price is cheaper.

However, the large-scale water ring vacuum pump is more safe and stable because of its speed limitation and mostly uses the belt drive mode.

Rotary Vane Vacuum Pump Cleaning And Assembly

How To Adjust The Vacuum Degree Of Water Ring Vacuum Pump

Roots Vacuum Pump In Distillation Process

rotary vane vacuum pump characteristics

rotary vane vacuum pump characteristics

What are the characteristics of rotary vane vacuum pump?

The feature of the rotary vane vacuum pump is to use the vacuum pump oil to seal and lubricate. Refueling is the feature of the rotary vane vacuum pump. In order to seal the sealing clearance, fill the clearance volume and lubricate the moving parts, the moving parts of the rotary vane vacuum pump are submerged in the vacuum pump oil.

The pumping rate of rotary vane vacuum pump is 0.0005 ~ 0.150m3/s, the limiting pressure is 1pA, and the working pressure range is 1.3332x10 ~ 1.3332x104pa.

The rotary vane vacuum pump is suitable for extracting dry gas or gas containing a small amount of condensable vapor. It is not suitable to extract gases with dust, high oxygen content, explosive, corrosive and chemical reaction to vacuum pump oil. It is used for vacuumizing general laboratory and small equipment.

Dry Screw Vacuum Pump

VACUUM FURNACE

industrial vacuum pumps,vacuum furnaces

Safety operation rules for rotary vane vacuum pump

Safety operation rules for rotary vane vacuum pump

I. purpose and scope of application of rotary vane vacuum pump

1. Vacuum pump is a basic equipment to pump out the gas in a specific sealed container and make the container obtain a certain degree of vacuum.

2. The vacuum pump is not suitable for pumping all kinds of gases with high oxygen content, toxic, explosive etched ferrous metal and chemical effect on vacuum oil, nor can it be used as compressor and delivery pump.

3. Vacuum pump is generally used at room temperature of 5-40 ℃ and relative humidity not higher than 90%.

 

II. Operating instructions of rotary vane vacuum pump

1. Check whether the power supply is connected, and start the vacuum pump motor after confirming the connection is correct.

2. Start 1-2 times intermittently, observe whether there is abnormal sound and special vibration during operation, and operate continuously only when there is no problem.

3. Check whether the cooling water pipe is smooth.

4. The air inlet of the pump shall be operated continuously in the open air for no more than three minutes to prevent the site from being polluted by fuel injection.

5. Pay attention to the position of the oil surface. Too much oil will cause poor start-up, oil return, oil injection and other adverse phenomena. Too little oil will not play the role of oil seal on the exhaust valve. There will be a large exhaust sound which will affect the vacuum degree. When the oil is insufficient, oil should be added through the oil filling hole, and the center of the oil injection pump oil standard is appropriate when the pump is stopped.

6. Vacuum pump oil of different types and brands shall not be mixed.

7. Open the valve on the intake nozzle of the pump, and the opening size depends on the specific situation.

8. When the pump is stopped, the valve on the air inlet nozzle shall be closed first. If the air vent valve is installed, the pump body shall be vented, and then the power supply shall be cut off.

9. Precautions

(1) always pay attention to the oil level;

(2) slowly open the valve after the pump is started;

(3) always pay attention to whether the pump operates normally, whether there is special sound, and whether the motor operates under overload;

(4) the cooling water shall not be interrupted;

(5) pay attention that the temperature rise of the pump does not exceed 40 ℃.

VACUUM FURNACE

industrial vacuum pumps,vacuum furnaces

Heat treatment equipment

Installation and function of air water separator of dry screw vacuum pump

Installation of air water separator of dry screw vacuum pump:

The air-water separator of dry screw vacuum pump can be directly installed on the exhaust port of oil-free vacuum pump, and fixed firmly with bolts. The gas-water separator has a pipeline connected with the pump, which supplies the water demand for the operation of the oil-free vacuum pump in the water ring. The rest of the operation water is supplied by the water supply pipe, and the size of the water supply is regulated by the valve on the pipeline. Check valve shall be installed on the intake pipe of dry screw vacuum pump or compressor to avoid the water in oil-free vacuum pump or compressor returning to the system under the pressure effect of exhaust pipe. The air-water separator of dry screw vacuum pump is actually very important. It is widely used in cooperation with vacuum pump. Basically, it can be used in any simple unit, with vertical and horizontal differences, which is based on the process needs.

Features of dry screw vacuum pump:

1. High definition clean vacuum

There is no medium in the working cavity of dry screw vacuum pump

Air will not come into contact with any chemicals

No pollution, more convenient gas recovery

2. No compression during operation

Dry screw vacuum pump does not have any pressure when working

When it's running, the air is like passing through an aisle

Without any extrusion, the solidified gas can be extracted


3. Suitable for many kinds of harsh working environment

The working cavity and rotor surface of dry screw vacuum pump are coated with nano film technology

(nano porcelain plating, aluminum plating, plating)

It is especially suitable for distillation, drying and degassing of products in pharmaceutical and chemical processes.

4. Oil free unit

Dry screw vacuum pump does not need vacuum pump oil, more environmentally friendly

It can form oil-free unit with roots pump and molecular pump

So as to achieve greater traffic to meet the needs of more customers

Vacuum System In Gas Power Plant

Dry Type Oilless Vacuum Pumps

Liquid Ring Vacuum compressor

How to use mechanical rotary vane vacuum pump

How to use mechanical rotary vane vacuum pump

(1) mechanical vacuum pump shall not pump corrosive gas, chemical reaction with pump oil or gas containing particle dust, nor directly pump condensable steam. If it is necessary to pump these gases, it is necessary to connect absorption bottle or cold well to absorb these gases before the pump inlet. The cold trap is a kind of cooling trap set up in the gas channel. It makes some condensable vapor in the gas condense into liquid. The cold trap is placed in the Dewar bottle. The old refrigerant in the Dewar bottle. When the temperature of the extracted gas is 40 ℃, the gas shall be cooled to room temperature in advance.

(2) check that the oil level must be above the oil standard center line. Start up intermittently when starting to extract gas. Observe whether the operation direction is correct.

(3) when stopping the operation of the vacuum pump, close the valve to the vacuum system first, so that the vacuum pump can be opened to the atmosphere, so as to prevent the vacuum pump from being closed under the condition of opening the vacuum system, so that the vacuum oil can be poured into the vacuum pipeline and vacuum system from the vacuum pump. When connecting the system device, a valve connecting the atmosphere shall be connected at the inlet of the vacuum pump. If the pump stops working suddenly or the power is cut off suddenly, the vacuum system shall be closed immediately and the vacuum pump shall be connected to the atmosphere.

VACUUM FURNACE

industrial vacuum pumps,vacuum furnaces

Heat treatment equipment

Cause of failure of rotary vane vacuum pump

Cause of failure of rotary vane vacuum pump

1. Smoke and fuel injection of rotary vane vacuum pump: it means that the exhaust port of rotary vane vacuum pump is smoking and fuel injection is about during operation.

Smoke: if the pump is just started to operate with smoke signs, it is normal, and if the smoke is in the permanent disaster, it is abnormal. Handling way: smoke to clarify that the pump intake, including pipes, valves, containers have patching environment. After leak detection, punishment will be given. Smoking will be over.

Fuel injection: it is clarified that there are a large number of leakage points outside the intake port, and even the intake port is exposed to the atmosphere. The way to deal with it: seal the air inlet of the pump to make the pump run. If there is no oil injection, clarify the leakage point; the exhaust valve plate is damaged, check whether the exhaust valve plate is damaged, and change the damaged exhaust valve plate. Failure of rotary vane vacuum pump

2. Noise of rotary vane vacuum pump: This refers to the noise of the pump.

Knocking: the pump makes an irregular sound when running, like the sound of metal knocking. This is the sound of the spinner hitting the pump. This kind of environmental tension is caused by the failure of the spring between the matched discs, which is probably caused by the failure of compression or ejection. Solution: turn on the pump and check whether the spiral spring is damaged. Changed spring.

Exhaust valve noise: tension is the damage of the exhaust valve of the rotary vane vacuum pump. The way to deal with it: change the exhaust valve.

Rotary Vacuum Pump In Chemical Distillation

Water ring vacuum pump

Rotary Vane Vacuum Pump

How to drain oil by liquid ring vacuum pump

How to drain oil by liquid ring vacuum pump

Do you know how to drain oil from liquid ring vacuum pump? Let's learn more today!

1. If you want to drain all the oil in the liquid ring vacuum pump box, you can screw off the drain plug at the lower part of the box to drain the oil.

2. When the liquid ring vacuum pump discharges oil outside, the liquid level shall not be more than 30mm from the top plate of the oil tank to ensure the lubrication and cooling of each bearing in the pump. When the volume of the jack working chamber is too large, additional oil tank shall be set to ensure that the minimum height of the liquid level after the oil discharge is not less than 100mm to avoid suction.

3. After the speed regulating hydraulic Siemens liquid ring vacuum pump runs for 500h for the first time, change the oil and clean the oil tank and oil filter. Test the oil quality by visual inspection and laboratory test, and change the oil in time when the oil quality deteriorates. The oil tank and oil filter must be cleaned at the same time when changing oil. If there are metal chips or water in the oil, find out the cause and remove the fault.

4. In a short period of time when the liquid level drops, the bearing is lubricated by the oil attached and the oil splashed by the plunger spring. The oil filter of the oil tank and the oil filter under the pump are made of 230 mesh / inch copper wire mesh. The oil filter mesh should be cleaned frequently to prevent blocking. The oil temperature of the oil tank should not exceed 60 ℃ when in use. If necessary, appropriate measures should be taken for cooling.

Vacuum Pump In Vacuum Forming And Laminating Process

Vacuum System In Space Simulation Cavity

Dry Type Oilless Vacuum Pumps

Characteristics of the newly developed rotary vane vacuum pump

Characteristics of the newly developed rotary vane vacuum pump

The 2XZ type rotary vane vacuum pump newly developed by our company is a kind of vacuum pump equipment with mandatory oil prohibition, which solves the phenomenon of oil return and oil injection well before, and is recognized by the majority of users. This rotary vane vacuum pump has the following features:

1. Fully sealed structure

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. At present, almost all rotary vane vacuum pumps in China have oil leakage problems.

2. Air ballast valve with air cushion adjustment

Air cushion is an effective means to eliminate pump noise, and the function of adjustable air cushion is considered in the structural 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 the actual debugging, we obviously feel the importance of this structure to noise reduction.

3. The protection function of the pump is complete

The pump itself is equipped with the air release stop valve used when stopping the pump. The valve is a differential pressure valve controlled by a solenoid valve, and the electric energy required by the solenoid valve is provided by the generator of the motor. Thus, whether the motor moves or not determines whether the generator generates electricity, and thus whether the solenoid valve acts. In addition, the pump also has overload protection switch. Once the pump is stuck or overloaded, the motor current will rise abnormally, and the protection switch will automatically cut off the power supply. From the perspective of use, this function is very useful.

4. The scope of application of the pump is wide

Suitable for 50Hz, 60Hz and three-phase 220V, 380V power supply system. One of the reasons for the strong drainage steam capacity of the pump is that it can still maintain a high vacuum degree in the gas ballast, the other is that the oil temperature is high, and the oil temperature is above 80 ℃ in normal operation. With such a high oil temperature and an effective gas ballast, the drainage steam capacity of the pump is greatly improved. In particular, as long as synthetic oil is selected, the pump can become a halogen resistant vacuum pump.
Roots Rotary Vacuum Unit In Medical Vacuum Freezing

Water ring vacuum pump

Rotary Vane Vacuum Pump

rotary vane vacuum pump structure

rotary vane vacuum pump structure

The rotary vane vacuum pump is actually a kind of positive displacement pump, mainly composed of stator, rotor, rotary vane, etc. it sucks in and compresses the gas by means of the continuous operation of the rotary vane in the pump cavity, and then discharges the gas from the exhaust port. There are two rotors in the rotor slot, and the rotor spring is placed between the two rotors, so the inlet and exhaust ports on the stator are separated into two parts by the rotor and the rotor.

When the rotor of the rotary vane vacuum pump rotates in the stator cavity, the rotary vane begins to slide in the inner wall of the pump cavity under the joint action of the spring tension and its own centrifugal force, and at the same time, the volume of the exhaust port is gradually reduced to compress the inhaled gas, and then discharged from the exhaust port, so as to achieve the purpose of air extraction.

Dry Type Oilless Vacuum Pumps

Water ring vacuum pump

Rotary Vane Vacuum Pump

XD type rotary vane vacuum pump Installation

XD type rotary vane vacuum pump Installation

XD type rotary vane vacuum pump shall be placed horizontally. As the pump operation almost no vibration can not be fixed. There are metric screw holes on the damping pad at the bottom of XD rotary vane vacuum pump to fix the pump. Do not push or pull the pump on the ground to avoid damaging the damping pad.

In order to ensure good cooling of XD rotary vane vacuum pump, the cooling air inlet and outlet of the pump shall be more than 30cm away from the surrounding objects. In order to facilitate maintenance, it is recommended to leave a gap of 0.4m in front of the air inlet and exhaust port of XD rotary vane vacuum pump. The base with oil drain pan can be installed for oil drain.

XD rotary vane vacuum pump is shipped without oil. After installation, slowly fill the specified vacuum pump oil (see maintenance 5.1) through the oil filler to 3 / 4 of the oil window height.

Liquid Ring Vacuum Pump

Roots Vacuum Pump

Rotary Vane Vacuum Pump