Vacuum pump oil filtration and replacement skills

After the dust, impurities and contaminated oil sink into the bottom of the main oil tank, they flow into the auxiliary oil tank through the oil return pipe. Through separation and deposition, the emulsified oil, water, dust and impurities sink into the bottom of the auxiliary oil tank and are discharged regularly by the drain valve. The relatively clean oil is filtered by the filter in the upper part of the auxiliary oil tank and then enters the oil separation chamber through the oil inlet pipe, and then supplies the end cover and pump chamber for operation. 

In the process of using vacuum pump oil, because of oxidation, emulsification and other factors mixed with various impurities, some of the oil degenerates. When the degenerated components and impurities reach a certain degree, the color of the oil changes, the viscosity and acid value increase, and insoluble resin like substances are separated out, resulting in the increase of vapor pressure of vacuum pump oil and the deterioration of its function. At the moment, the pump oil can not be used continuously. It is necessary to replace the pump oil with a new one.

In order to prevent the dust and particles in the vacuum pump oil from entering the pump cavity along with the pump oil. For some technical processes. In the process of pump operation should be equipped with continuous filtering equipment. After the dust, impurities and contaminated oil sink into the bottom of the main oil tank, they flow into the auxiliary oil tank through the oil return pipe. Through separation and deposition, the emulsified oil, water, dust and impurities sink into the bottom of the auxiliary oil tank and are discharged regularly by the drain valve. The relatively clean oil is filtered by the filter in the middle and upper part of the auxiliary oil tank, and then enters the oil separation chamber through the oil inlet pipe, and then supplies the end cover and pump chamber for operation.


Water Ring Vacuum Pump

Dry Scroll Vacuum Pump

industrial vacuum pumps,vacuum furnaces

Main uses of water jet pump

① It is used in vacuum distillation, concentration, dehydration, decolorization, drying, crystallization, filtration, degassing, material transportation, tail gas and dust absorption in chemical and pharmaceutical industries.

② It is applied to spray condensing secondary steam. In some processes, a large amount of secondary steam will be produced and a small amount of non condensable gas needs to be discharged to maintain normal production. This kind of water jet pump is also called water jet condenser, which takes condensation as the main and exhaust as the auxiliary.

③ It is applied to vapor-liquid mass transfer and absorption. The liquid flowing out at high speed meets the ejected gas. The entrainment process of air flow by jet is also the process of vapor-liquid two-phase mixing. Due to the large contact surface between gas and liquid in water jet pump, high-speed jet has great speed, which greatly strengthens the speed of mass exchange in absorption and mass transfer, and accelerates chemical reaction or material transfer process. Therefore, water jet pump has the function of both reactor and pump. It is used as absorption and mass transfer equipment in many occasions

④ In many large chemical plants and chemical fertilizer plants, the steam or hot water with certain energy is often discharged, resulting in energy waste. Water jet pump is used to inject low-energy fluid with less jars of high-energy fluid, so as to increase the energy site of the fluid, and then used in the production process.

Dry Type Oilless Vacuum Pumps

industrial vacuum pumps,vacuum furnaces

SSR Roots Type Blowers

diaphragm vacuum valve principle application range

Diaphragm vacuum valve uses the valve rod to press the rubber diaphragm directly on the valve seat. It is used to cut off or connect air flow. It is often installed between the pumped container and various low vacuum pumps. Its action principle is to rotate the handle to move the stem downward, press the rubber diaphragm directly on the valve seat, and cut off the air flow. Rotate the hand wheel in the opposite direction, and the valve rod moves upward to drive the rubber diaphragm away from the valve seat and connect the air flow.

The main body of the valve is made of aluminum alloy. Simple structure, light weight, small volume and good sealing performance. The diaphragm vacuum valve with NBR is used for the non corrosive gas on the low vacuum pipeline and the temperature of - 25 ~ 80 ℃. The diaphragm vacuum valve with fluororubber can be used for the high vacuum system with the temperature range of - 30 ~ 150 ℃

The existing series of diaphragm vacuum valves produced in China have nominal diameters of 10 mm, 25 mm, 40 mm and 50 mm respectively. Among them, GM type high vacuum diaphragm has five types: GM type, GMC type, gm-kf type, gm-d-h (I) and gm-d-h (II). The difference lies in the form of connecting flange of the valve.

SSR Roots Type Blowers

Dry Type Oilless Vacuum Pumps

Roots Vacuum Pump

vacuum pump scope of application

Vacuum pumps include water ring pumps, reciprocating pumps, slide valve pumps, rotary vane pumps, Roots pumps and diffusion pumps. At present, these pumps are the essential main pumps in the application of vacuum technology in various industries of national economy. And today's edition to introduce you is the scope of application of vacuum pumps and the use of knowledge.

Application Scope and Knowledge of Vacuum Pump

1. Vacuum pump is the basic equipment used to extract gas from sealed container and obtain vacuum. It can be used independently, and can also be used as a front-stage pump and pre-pumping pump for various vacuum systems. It is widely used in medical, scientific research, chemical, laboratory, plastics, electronics and other industries, as well as in the manufacture of electric vacuum devices, bulbs, thermos bottles, vacuum welding, instruments and refrigeration equipment, printing and packaging machinery, etc.

2. Vacuum pump working environment: temperature 5 `C90% A inch, should open air ballast valve. 90% of the intake pressure is less than 10 torches, allowing long-term continuous operation. When the relative humidity of the exhausted gas is more than 90%, the air ballast valve should be opened.

3. The intake port of the vacuum pump shall be continuously open to the atmosphere for no more than three minutes.

4. Vacuum pumps are not suitable for extracting gases that are corrosive to metals, chemical reactions to pump oil, dust, and explosive gases with excessive oxygen content. This pump shall not be used as a compression pump or a conveyor pump.

Piston-Vacuum-Pump-for-liquid-oxygen

Rotary-Plunger-Piston-Vacuum-Pump-Manufacturer

High-Pressure-Mini-Plunger-Piston-vacuum-pump

Vacuum Leak Detection Technology

1. What is air leakage and ventilation?

Vacuum equipment is required to achieve and maintain a vacuum state. If there is a leakage problem, it will become a major defect. At the same time, no vacuum equipment has absolute tightness, there is a certain degree of leakage problems.

The phenomenon of gas passing through solid is called gas permeability, especially the hydrogen and helium gas passing through the sealing with rubber material can not be ignored. But the nature of air permeability is different from that of air leakage. Leakage is defined as the phenomenon of mechanical intrusion from the high-pressure side to the low-pressure side of a gap or hole.

2. Reasons for Leakage

The main cause of air leakage is the defect of the material itself, and the other is the bad sealing part. Another situation is that there is no leakage at room temperature, but when the temperature changes, there will be leakage. The main reason for this is the difference of thermal expansion coefficient.

3. Admissible range of air leakage

Strictly speaking, air leakage exists in any equipment. The problem is whether the air leakage has an effect on the vacuum equipment and the purpose of use. The effect of air leakage is that it may affect the pressure reached or the purity of the experimental production. If such adverse effects can not be caused, a certain amount of leakage can be allowed in a certain range. Generally speaking, the air leakage shown in the table below is acceptable.


Helium-Mass-Spectrometer-leak-detector-for-Large-production-line

High-precision-electronics-helium-mass-spectrometer-leak-detector

China-lighting-helium-testing-mass-spectrometer-leak-detector-equipment

Helium-mass-spectrometer-leak-detector-device-for-china-aerospace

Helium mass spectrometer leak detector principle

1. Structure of helium mass spectrometer leak detector (30D, 542, etc.)

2. mass spectrometry room

3. Vacuum system

4. Electrical System

5. How to select helium mass spectrometer leak detector

6. The content of air is very little.

7. Helium molecule is small, light and easy to pass through the leak. After entering the system, the flow and diffusion are also fast.

8. The helium ion mass-charge ratio is small, so the deflection radius is small, the size of the analyzer can be smaller, or the weak magnetic field can be used.

Helium mass spectrometer leak detector principle

1. The helium mass spectrometer leak detector is a kind of gas tightness detection instrument based on the principle of mass spectrometry, which uses helium as exploratory gas. The principle of mass spectrometry is as follows:

2. Electrons emitted by filament heat are accelerated into the ionization chamber, and collide with residual gas molecules and helium gas leaked into the ionization chamber to ionize them into positive ions. These ions enter the magnetic field under the accelerated electric field and deflect due to the action of magnetic field force (Lorentz force), forming a circular arc orbit.

Touch-screen-Helium-Mass-Spectrometer-Leak-Detector

Helium-Mass-Spectrometer-leak-detector-for-LNG

Helium-Mass-Spectrometer-leak-detector-for-battery

Circulating Water Cooling Device of Water Ring Vacuum Unit

In the overall development process of water-ring vacuum unit, the performance strength of the product should be used to speed up the improvement of the overall application effect, promote the overall improvement of its quality and superiority level, highlight the application effect of the whole equipment, and continuously enhance the value advantage of its products on a reliable basis.

The water in the storage tank is pumped into the sprinkler one way and into the cooling water inlet of the unit the other way. The water in the sprinkler is ejected through a hundred small holes in the perforated plate effect, forming a lot of water going vertically downward.vacuum-pump-to-dewater-for-pulp-and-paper-industry

Under the action of exhaust fan, the water evaporates on the surface, dissipates heat and cools down, then returns to the storage tank. The distribution of the holes on the porous plate determines the position of the water column, so that the holes on the porous plate are evenly distributed, so that the air flow contacts the water column sufficiently and forms the largest swallow surface as possible, so as to achieve the purpose of water cooling.industrial-Paper-mill-special-roots-vacuum-pump


Considering that the depression of the water discharged from the water ring vacuum unit is quite different from the air temperature, the first stage of forced cooling by air cooling is designed. The water discharged from the water ring vacuum unit passes through the radiator first, the radiator is placed behind the fan, and the cooling air from the water to the radiator, thus cooling the hot water discharged from the diffusion pump, and then returning to the storage tank and cooling water in the diffusion pump. Flow can be observed directly in the device.vacuum-pumps-vacuum-distillation

Water Ring Vacuum Pump Daily Maintenance

In the normal work of water ring vacuum pump, packing should be pressed regularly. If the packing can not guarantee the required sealing performance due to wear, new packing should be replaced. If mechanical seals are used and leakage is found, the dynamic and static rings of mechanical seals should be checked for damage or aging of auxiliary seals. If the above situation occurs, new parts need to be replaced.

When special sound occurs, the pressure plate on the two end covers can be removed to check whether the two end faces of the impeller are scratched with the distributor or whether the exhaust valve plate is normal.water-ring-vacuum-pump-type

In normal work, attention should be paid to check the work and lubrication of bearings. The temperature (bearing and outer circle) of bearings is generally higher than the ambient temperature by 15 to 20 degrees Celsius. The maximum temperature should not exceed 30 to 35 degrees Celsius. That is to say, the actual temperature at the outer circle of bearing rack of water ring vacuum pump should not exceed 55 to 60 degrees Celsius. The bearings in normal work should be oiled 3 to 4 times a year, cleaned at least once a year, and moistened. All the lubricants are replaced.water-ring-vacuum-pump-application

Water Ring Vacuum Pump Structure Chart

Water-ring vacuum pump is a kind of pump product which connects pump and motor and works under water at the same time. It mainly consists of shaft, bearing frame, pump cover, impeller, pump seat, motor support, motor and other components. The structure of the sewer ring vacuum pump is introduced below.
The water ring vacuum pump adopts the structure of single-stage action. The pump is composed of pump body, impeller, front and rear cover (two pieces), front and rear distributor, shaft, front and rear bearing parts, valve plate parts, etc. The shaft is eccentrically installed in the pump body, the impeller and the shaft are interference fit, and the total clearance between the two ends of the pump is adjusted by the cushion between the pump body and the distributor. When assembling, the front end is positioned to determine the single-side clearance first. The clearance between the impeller and the distributor has a greater influence on the gas leakage (leakage from the exhaust chamber to the suction chamber). Therefore, assembly must be guaranteed. For pumps whose impeller diameter is greater than 500 mm, the one-sided clearance should be controlled between 0.25 and 0.35, and the total clearance at both ends should be between 0.5 and 0.7.vacuum pumps classification

The pump chamber is provided with an inlet and an outlet, and a group of blades are arranged between the inlet and the outlet. The rotating shaft of the blades is a motor shaft in the pump body. A guide plate is arranged at the outlet position of the pump chamber. One side of the guide plate is pivoted on the guide shaft, and the guide shaft and the motor axis are on the same straight line. The distance between the guide shaft and the motor axis is slightly larger than the rotating radius of the blade, and the rotating angle of the guide plate is limited by the pump chamber. When the pump works, the impulse of water flow will make the guide plate swing to one side and seal the side of the pump chamber. Under the blockage of the guide plate, part of the water flow driven by the blade rotation will not rotate repeatedly with the blade in the pump chamber, but will be effectively discharged from the drainage port, so that the efficiency of the pump can be effectively improved.

The filler is packed in two end caps and the sealing liquid enters the packing chamber through the hole in the end cap to cool the filler and enhance the sealing effect.single stage rotary vane vacuum pump

When the mechanical seal is used, the mechanical seal is installed in the packing chamber, and the packing cover is replaced by the mechanical seal cover. The front and rear distributors are equipped with suction and exhaust crescent holes and elliptical exhaust holes, and valve plate components. The function of the valve plate is to discharge the gas before the crescent outlet when the gas pressure between impeller blades reaches the exhaust pressure, thus reducing the consumption of increasing power due to excessive gas pressure.roots vacuum pump low vacuum degree treatment reasons

The water ring vacuum pump adopts a unique impeller structure with single or double blades, which greatly improves the trafficability of sewage. It can effectively pass through five times the diameter of the pump and solid particles with a diameter of about 50% of the diameter of the pump. The mechanical seal uses a new type of hard and corrosion-resistant tungsten carbide material, which makes it run in oil chamber for a long time, and can make the pump run safely and continuously for more than 8000 hours.
vacuum pump be most suitable for use under what conditions should

Vacuum pump manufacturer

Shanghai EVP is a professional vacuum pump manufacturer. If you don't understand the vacuum pump selection, please contact Xiaobian to find out how to choose the vacuum pump:

First, the vacuum volume should be calculated first: check the time required to reach the required vacuum, the flow resistance and leakage of the vacuum piping. Consider the pumping rate required to maintain the vacuum under certain process requirements after achieving the required vacuum.

Second, the type of gas to be pumped and the amount of pumping: check and determine the type of pumping and pumping capacity required by the process. Because if the type of gas being pumped reacts with the liquid in the pump, the vacuum pump system will be contaminated. At the same time, consideration must be given to determining the appropriate exhaust time and the amount of gas produced during the pumping process.liquid ring vacuum pumps manufacturer

Third, determine the working range of the vacuum pump: First, we must check to determine the vacuum degree required for each process. Because each process has its own range of vacuum, it must be carefully studied and determined; determine the ultimate vacuum, check the ultimate vacuum of the vacuum pump system based on the vacuum required to determine the process, because the ultimate vacuum of the system is determined The optimal working vacuum of the system. In general, the system's ultimate vacuum is 20% lower than the system's operating vacuum and 50% lower than the foreline's ultimate vacuum.Dry vacuum pump

Fourth, the general vacuum pump selection requirements :

1. Vacuum degree, vacuum volume, main medium, temperature, and main volume equipment;
2. Vacuum flows into the medium and flow, pressure, temperature, and law;
3. Pumping capacity, extraction of gaseous medium, temperature;
4. The area of ​​the vacuum equipment, the degree of automation, and the specifications of the vacuum piping.

water ring vacuum pump advantages

The advantage is to evaluate one point of a thing or something. Everyone and everything has its own advantages. The difference in merits makes the difference between people and friends. It also causes the machine to be used by more people. . Now, the use of water ring vacuum pumps is quite extensive, so what advantages does it have?

1. The water ring vacuum pump has a coaxial direct connection design, which saves space and is easy to install.

2. All imported mechanical seals are used as standard equipment.

3, all use Y2 series motor, protection grade IP54, IP55.

4. All bearings are imported NTN or NSK.dry-screw-vacuum-pump-for-medical-packaging

5. The water ring vacuum pump is equipped with a cavitation protection tube interface. If it works under the limit pressure, open the cavitation protection tube interface (or connect with the separator) to eliminate the cavitation sound when the suction effect is maximized. And protect the pump.

6. The aluminum bronze impeller has high strength, durability and improved corrosion resistance of the vacuum pump. If the flow parts are made of stainless steel, they can work in more demanding environments.

7. The unique flexible exhaust port design does not produce over-compression, ensuring that the water ring vacuum pump is the most efficient in its performance range.

The advantages of the water ring vacuum pump are diverse, and because of its irreplaceable advantages, its market is more extensive, and the manufacturer's sales speed is faster. Of course, the premise is that we must ensure that the quality of the products is absolutely clear.liquid-ring-vacuum-pump-material

Vacuum pump manufacturer

Vacuum pump manufacturer's vacuum pump is a rotary variable volume air pump, vacuum pump must be equipped with a pre-pump, can be used in a wide range of pressure within a larger pump speed, gas containing dust and water vapor insensitive, widely used in metallurgy, chemical industry, food, electronic coating and other industries.

Vacuum pumps include dry screw vacuum pumps, water pumps, reciprocating pumps, slide valves, rotary vane pumps, Roots pumps and diffusion pumps. These pumps are very important for vacuum technology in the national economy.vacuum-system-improvement-of-vacuum-freezing-chamber

Over the years, with the sustained and rapid development of China's economy, the vacuum pump related downstream application industry maintained a rapid growth momentum, and the vacuum pump application field continues to expand together with other factors, China's vacuum pump industry to achieve sustained and stable development.Vacuum-system-in-alcohol-distillation-application

Water ring vacuum pump

The water ring vacuum pump is equipped with an eccentric rotor with fixed blades. The water (liquid) is thrown into the stator wall to form a liquid ring concentric with the stator. The liquid ring together with the rotor blade forms a variable volume rotary variable volume vacuum pump.

Water-ring vacuum pump was originally used as self-suction pump, and then gradually used in petroleum, chemical, mining, pharmaceutical and food industries and many other sectors. In many industrial processes, such as vacuum filtration, vacuum water diversion, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum moisture regain and vacuum degassing, water ring pump has been widely used.

Piston vacuum pump

Piston vacuum pump working principle, piston vacuum pump selection and other information. Piston vacuum pump is a reciprocating vacuum pump. It relies on the reciprocating motion of the piston to make the working volume of the pump cavity (cylinder) periodically change to pump air. When working, the suction pipe is vacuumed and the exhaust pipe passes through the atmosphere. Piston vacuum pump pumping capacity is large, pumping rate range is 45-20,000 cubic meters per hour, single-stage pump limit pressure is about 103 Pa, two-stage pump can reach 1 Pa. Piston vacuum pump can be used in vacuum distillation, vacuum concentration, vacuum crystallization, vacuum filtration, vacuum drying and concrete vacuum operation. If a condenser is installed at the suction port of a piston vacuum pump, the gas containing water vapor can be extracted; if a filter is installed, the gas containing dust can be extracted.2BV_series_Liquid_ring_vacuum_pump

Piston vacuum pumps are divided into dry and wet ones. Dry pumps can only pump gas, and wet pumps can draw gas and liquid mixture. There is no principle difference in the structure between the two, but the dead space and valve mechanism of the wet pump is larger than the dry pump, so the limit pressure of the wet pump is higher than the dry pump. Piston vacuum pump has two types of horizontal and vertical (domestic W and WL). Vertical pumps are more advanced in structure and performance. They are upgrading products of horizontal pumps.Molecular_Pump

Roots vacuum pump of development

Roots vacuum pump evolved from roots blower. Roots blower can compress the gas to 0.1-2kg/cm outlet pressure under normal atmospheric pressure at the suction inlet, which can be used as blast in smelting industry. Roots vacuum pump is similar in structure and principle to roots blower, so the same name is used.

In the middle of the twentieth century, the development of vacuum technology, especially the requirement of vacuum smelting of high-grade alloys in Shanyu, required a new type of vacuum equipment with large pumping speed in the smelting vacuum system when the vacuum degree was 1-10-2 Torr. At that time, the oil seal mechanical vacuum pump suitable for low vacuum work and the oil diffusion pump suitable for high vacuum work were not able to undertake this task well. Because the oil seal mechanical vacuum pump in 1 ~ 10 - 2 Torr, the pumping speed is seriously reduced, the work efficiency is very low, such as reluctant to make it bear a large pumping speed, the need for more than one parallel work, will inevitably cause great waste. As for the high vacuum oil diffusion pump, it can not work under such inlet pressure. Therefore, in this case, we must design a new type of vacuum pump with high pumping speed and high efficiency.

Screw vacuum pump start-up and shutdown steps

The screw vacuum pump is equipped with a migrant rotor with fixed blades, which throws water into the stator wall. The water forms a liquid ring concentric with the stator, and the liquid ring and the rotor blade together form a variable volume rotary displacement vacuum pump. So what are the starting and stopping processes of screw vacuum pumps? Here we will understand in detail.

A screw vacuum pump that has been shut down for a long period of time has been started and needs to be rolled several times by hand to prove that the pump is not jammed or otherwise damaged. At this point the need to open the exhaust valve, start the motor, but pay attention to the positive rotation of the motor, and then gradually add water supply, water supply compliance rules to request a stop, at this point should be careful not to do the task of vacuum pump.

When the screw vacuum pump stops, if there is a valve in the intake pipe, the valve on the intake pipe should be blocked at this moment, then the water supply pipe should be blocked, and the vacuum pump should be shut down quickly, and also pay attention to the water in the cavity of the screw vacuum pump should be released after the shutdown, to avoid re-starting, will constitute a blade and pump shaft cracking.

Classification Of Vacuum Units

Vacuum unit is generally named according to the type of main pump, and then can be classified according to product characteristics, such as oil-containing vacuum unit and oil-free vacuum unit; more commonly, according to the scope of vacuum application, can be divided into low vacuum unit, medium vacuum pump unit, high vacuum unit and ultra-high vacuum unit.

The four categories of vacuum units :

Low vacuum unit has high working pressure and large exhaust capacity, which is mainly used for vacuum conveying, vacuum impregnation, vacuum filtration, vacuum degassing of vacuum dryer, etc. Reciprocating pumps, water ring pumps, oil seal mechanical pumps, screw vacuum pumps, wet roots pumps, jet pumps, molecular sieve adsorption pumps and other types of vacuum pumps commonly used in low vacuum units can be competent, but according to the cleanliness, humidity and other conditions of the exhausted gas, it is necessary to configure the excluding Dust, gas, water, oil and water separator, drying trap and other facilities.

Medium vacuum unit is suitable for all kinds of vacuum systems which need large pumping speed and obtain medium vacuum, such as coating machine, vacuum smelting, vacuum heat treatment, medicine and chemical industry, electrical welding and so on. In the past, the combination of Roots Vacuum Pump + Oil Seal Mechanical Pump, Roots Vacuum + Water Ring Vacuum Pump and Double Roots Vacuum Pump was the most common vacuum unit. With the rise of oil-free vacuum pump such as screw vacuum pump, Roots vacuum pump + screw vacuum pump such as oil-free vacuum unit has gradually increased, more adaptable.

Vacuum Pump Is Applied In Vacuum Plastic Forming

Vacuum suction molding is one of the common vacuum pump applications, is also a plastic packaging container production commonly used thermoforming method, in the processing of packaging materials industry has a wide range of applications.

What is vacuum molding：

Vacuum suction molding is generally used for making open shell products of thermoplastic sheets. The principle is simply that the plastic sheets are heated to a certain temperature, then softened to viscoelastic state, and then pumped through a vacuum pump to vacuum the mold, forming a vacuum suction pressure difference, so that the sheets are deformed and covered on the mold contour surface, the most. After cooling, shaping and dressing.

The whole set of vacuum plastic suction unit is generally composed of upper and lower heater, temperature controller, bearing plate, press frame, vacuum pump, vacuum chamber, mold temperature controller, cooling device and so on. Parameters are controlled by computer storage, and the control is simple. When a certain type of product is produced, only the corresponding parameters can be adjusted.

Vacuum plastic forming relies on the vacuum pressure difference to make the sheet stretch and deform. At present, the vacuum is easy to realize, master and control, making vacuum molding products with low cost, high production efficiency advantages, has been widely used. Its form can be divided into three types: die less molding, punch (Yang Mo) forming and die (die) molding.

Piston Vacuum Pump Technology

Piston vacuum pump is a product with excellent quality, excellent performance, high reliability and reasonable price. It has been sold to Europe, the United States, Japan and more than a dozen advanced countries, and most of the direct use of customer recognition and affirmation. This series of piston vacuum pumps can be widely used in automation equipment, industrial machinery, laboratory use, air testing equipment, photoelectric semiconductor, medical and pharmaceutical applications.

The main components of piston vacuum pump :
1. front cover: prevent injury to operators;
2. motor cooling fan: high efficiency heat dissipation, reduce motor temperature rise;
3. piston ring: special wear resistant material, long running life.
4. piston connecting rod: solid and lightweight design.
5. chassis: aluminum alloy die-casting, lightweight and beautiful appearance.
6. cylinder: wear hardness treatment, long service life;
7. valve metal plate: solid structure;

Piston vacuum pump technology:

In addition to the above main components, there are exhaust valves and suction valves and other important components, as well as frame, crankcase, dynamic seal and static seal and other auxiliary components. When running, driven by the motor, the piston in the cylinder reciprocates through the action of the crank-connecting rod mechanism (rotation into linear motion). When the piston moves from the left end to the right end of the cylinder, the pressure in the left chamber space decreases because of the increasing volume of the left chamber. When the pressure in the left chamber space is lower than that in the pumped container, according to the principle of gas pressure balance, the gas in the pumped container is continuously pumped into the left chamber through the suction valve. It is in the process of inspiration.

When the piston reaches the right position, the left chamber of the cylinder is filled with gas. Then the piston moves from the right side to the left side, and the suction valve automatically closes. The gas gradually compresses as the piston moves from right to left. When the gas in the cylinder reaches the exhaust pressure, the exhaust valve is opened and the gas is exhausted, thus completing a working cycle. When the piston moves from the left end to the right end, repeat the above cycle, so that the pumped vessel eventually achieves a stable equilibrium pressure to improve the pumping efficiency, generally at both ends of the cylinder are equipped with suction valves and exhaust valves, and then the two ends of the cylinder suction and exhaust ports are connected in parallel with the pipeline.

Piston vacuum pump has the characteristics of high efficiency, energy saving, safety and environmental protection, stable operation, long life, low temperature rise, small volume, light weight, beautiful appearance, simple structure, no oil and easy maintenance. Because of its sophisticated structure and the use of modern advanced technology, the noise level is only 48.7-60.0 dB, keeping the use of quiet environment, to avoid interference by noise operators. Its pumping speed range is relatively large, from 50L/S to 600L/S, as a transport pump, pumping non-solid particles, non-corrosive gas, this vacuum pump pumping speed is higher, higher vacuum.

Piston vacuum pump is very suitable for manipulator with vacuum absorption technology to carry small pieces of materials in the current automation industry. It is suitable for grasping thin and smooth surface metal products, glass, mobile phone panel, electronic components, paper, etc. with vacuum suction cup. It achieves stable and efficient work efficiency. There are more and more cases of using piston vacuum pump to grab objects on automatic operation lines such as product packaging, object transmission and mechanical assembly. Soft and flexible sucker can easily carry out such functions as the suction, release, transfer of the workpiece, and ensure that it does not damage the object of its function.

Double Stage Water Ring Vacuum Pump

Two-stage water ring vacuum pump product overview:

It is mainly used to remove air and other corrosive gases which are not allowed to be water and allow a small amount of solid particles. The double stage water ring vacuum pump has the characteristics of high vacuum, simple structure, convenient operation, reliable operation and convenient maintenance.

Working principle of double stage water ring vacuum pump:

A certain amount of water is injected into the cylinder of a cylinder of a water ring vacuum pump. The star impeller is eccentric in the pump cylinder. When the impeller rotates, the water is thrown to the four sides by the centrifugal force to form a closed closed water ring relative to the impeller. The suction gas in the vacuum pump enters the space between the suction hole and the suction hole between the water ring and the impeller. On the right crescent part, the volume of the space is gradually increased by the rotation of the impeller, thus producing vacuum suction gas.double-stage-water-ring-vacuum-pump

As the impeller rotates, the gas enters the crescent shaped part on the left side. Because the impeller is eccentrically rotating, the space gradually reduces, the gas is gradually compressed and boosted, gas and water will be entered into the water tank by the exhaust hole through the exhaust pipe through the exhaust pipe, and then release automatically after the gas discharge. In the water ring vacuum pump, the waste water and air are discharged into the water tank together.water-ring-vacuum-pump-separator

Application range of double stage water ring vacuum pump:
It is widely used in vacuum evaporation, concentration, impregnation, drying and other processes in food, textile, pharmaceutical and chemical industries.roots-water-ring-unit-classification