ejector in vacuum blowdown system

There are two kinds of ejectors used in vacuum blowdown system: atmospheric ejector and water ejector (jet pump).

Mobile vacuum toilet usually uses the high-pressure air supply provided by vehicles to produce vacuum through atmospheric ejector, which can reach -0.04mpa ~ -0.05mpa. It has the advantages of simple structure, no moving parts, low price and high reliability; the disadvantage is that the working efficiency is not high. It should be noted that in order to avoid affecting the normal braking of the vehicle when using the atmospheric injector, it is necessary to strictly calculate the air consumption of the atmospheric injector, and increase the air storage tank if necessary. However, it is relatively convenient when the air source of trains and ships is abundant.

The water ejector is mostly located in the vacuum tank or outdoor water collection unit, which takes the gas-liquid mixture collected in the vacuum pipeline as the injection fluid, and the working fluid is the circulating sewage driven by the water pump. This method has been widely used in early design, but it is rarely used at present. At the same time, the water ejector design can also be used in the vacuum toilet system of mobile vehicles.

Water Ring Vacuum Pump

Dry Scroll Vacuum Pump

industrial vacuum pumps,vacuum furnaces

Application advantages of dry screw vacuum pump

The dry screw vacuum pump is a relatively advanced vacuum pump at present, and its technology content is relatively high. It is mainly used for high-purity vacuum production, and there is no high requirement for vacuum degree. Dry screw vacuum pump also has the function of extracting particles, which is often used for environmental cleaning, and can be used in the environment with requirements for corrosion protection, so it can be used in other electronic production such as medical treatment, chemical industry, etc., and also used in the food industry, because many food industries have extremely high requirements for corrosion protection.

The dry screw vacuum pump is a vacuum pump composed of roots pump and screw pump, and equipped with a vacuum meter, etc. at the same time, it can also be processed according to the needs of customers, which is very popular. Dry screw vacuum pump can be cleaned separately, which can ensure that the pump is clean, can reduce the failure, and also reduce the number of repairs. Because of the different gases, there will be a lot of dirt formation, to be cleaned in time.

It is because of the superior performance of dry screw vacuum pump, now it is used very much, which brings a lot of convenience for many enterprises. The dry screw vacuum pump mainly uses the reverse rotating screw to synchronously rotate at high speed so as to realize the function of suction and exhaust. The two screws are supported by bearings and balanced with each other.

Dry Type Oilless Vacuum Pumps

Dry Screw Vacuum Pump

industrial vacuum pumps,vacuum furnaces

Water ring vacuum pump has strong corrosion resistance

Compared with the most common SK series water ring vacuum pump, the water ring vacuum pump has the characteristics of strong corrosion-resistant function, high limit vacuum degree and large exhaust volume. It is widely used in food, petroleum, chemical industry, metallurgy and other professional fields, and can also pump various gases and corrosive gases without solid particles.

There are two main shock absorption methods: to reduce the vibration of the motor and the transmission shaft, SK water ring vacuum pump is used for transmission, and the rigid connection between it and the transmission shaft is changed to elastic connection. By using elastic sleeve pin coupling, the maximum compensation displacement and compensation angle can be adjusted, so that the vibration of motor and transmission shaft can be compensated by elastic coupling, and will not be directly transmitted to sk water ring vacuum pump.

Considering that it is difficult to reinforce SK water ring vacuum pump, the method of welding "stiffener" in the outlet steel pipe is adopted. Along the inlet and outlet direction, the two end flanges of the connecting steel pipe between the expansion pipe at the outlet of SK water ring vacuum pump and the outlet valve can be welded with several steel plates of specified thickness and width according to the seller's consultation. Add the rigidity of steel pipe, reduce the deformation and resist the displacement.

Vacuum Pump For Vacuum Impregnation

Oil Free Scroll Vacuum Pump For Expanded Food Packaging

Water Ring Pump

water jet vacuum unit working principle

Water jet vacuum unit (also known as jet vacuum pump, jet vacuum pump, jet pump, jet pump, water jet, jet, vacuum jet,)

Principle of water jet vacuum unit: a vacuum obtaining device that uses fluid to transfer energy and quality, uses water flow with certain pressure to spray out through nozzles symmetrically and evenly distributed into a certain side slope, and converges on a focus. Because of the high velocity of jet water, the pressure energy is changed into velocity energy, which reduces the pressure in the suction area and creates a vacuum. A number of high-speed water flows will be grabbed by the aspirated gas, which will be fully mixed and compressed through the contraction section of Venturi tube and throat diameter to exchange the molecular diffusion energy, and the velocity will be balanced. In the expansion section, when the velocity is reduced and the pressure is increased, the non condensable gas will be released when the pressure is greater than the atmospheric pressure and injected into the water storage tank (pool) from the outlet. Water is recycled by centrifugal pump to complete suction process.

Application of water jet vacuum unit: it is mainly used in vacuum suction process of various industries, such as material absorption and transportation, condensation, distillation and evaporation, concentration, decolorization and deodorization, oxygen supply and deoxidization, dry crystallization and filtration, chemical absorption, tail (waste) gas neutralization, vacuum pumping, vacuum modeling and other processes. It is widely used in light industry, chemical industry, chemistry, pharmacy, vacuum smelting, sugar making, salt making, monosodium glutamate, chemical fiber, paper making, food, plastic rubber, ceramics, large and medium hospitals, vacuum brick making, foundation pit dewatering, drainage, petroleum, environmental protection and other industries.

Structural features of water jet vacuum unit: the water jet is composed of pump cover, pump body, orifice plate and Venturi tube. It is made of cast iron, carbon steel, glass fiber reinforced plastic (FRP), reinforced polypropylene (PPR), glass fiber plastic composite and stainless steel. The orifice plate is made of molded epoxy phenolic resin, and the nozzle is made of polytetrafluoroethylene (commonly known as plastic king). Can adapt to different working environment and requirements. It can directly suck high concentration corrosive gas, inflammable and explosive gas, various liquids and granular media, and it can be used in environmental protection, tail gas absorption, dust reduction, environmental pollution improvement and working conditions, etc. it has incomparable advantages of mechanical vacuum pump and water ring vacuum pump.

Water Ring Vacuum Pump

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

How to apply screw vacuum pump

In the long-term use of screw vacuum pump, there may be problems: oil return. In addition to the screw vacuum pump without check device, this phenomenon is more obvious when the screw vacuum pump stops working. Taking measures in time can reduce the loss. The placement position of the screw vacuum pump has nothing to do with the return oil.

When the pump stops, the oil circuit is cut off, the negative pressure in the vacuum pump cavity of the pump is eliminated, the liquid level difference is reduced, and the oil return quantity is reduced. This is the basic principle to prevent oil return. The shaft seal and static seal of the screw vacuum pump shall be reliable and replaced when appropriate. The oil near the exhaust valve of the screw vacuum pump shall be separated from the rest of the oil. The oil level is only slightly higher than the partition wall?

The surface of the valve seat of screw vacuum pump should be flat, and the elasticity of the valve plate should be good? Set check valve structure, screw vacuum pump will automatically close the oil inlet when it stops, move the fuel tank and exhaust valve to one side to reduce the oil level and oil volume, add a pipe in the oil hole of screw vacuum pump, so that the oil level is only slightly higher than the oil inlet.

Screw vacuum pump suction valve? Screw vacuum pump and auxiliary structure are set to cut off the oil circuit when the pump is stopped? After stopping the pump, the suction port can be filled with gas to ensure the pressure balance at both ends of the screw vacuum pump. It is recommended to replace the check valve at the air inlet. Because of the vacuum pumping, when the screw vacuum pump stops running, the air pressure in the vacuum cavity is lower than the external pressure, the oil in the screw vacuum pump will be pumped out, resulting in oil return.

Dry Scroll Vacuum Pump

Dry Screw Vacuum Pump

industrial vacuum pumps,vacuum furnaces

Great advantages of vacuum pump in practice

In the whole process of using water ring vacuum pump, we should contact the improvement of its commodity function, speed up the continuous development of its commodity application ability, enhance the development of its useful value with solid function, make it improve the development strength of commodity function continuously in the strength of stock commodity, outstanding the improvement of its all use advantage, and make it used reasonably In the process, it reflects the quality advantages of the equipment itself and improves the quality of the company's performance of all the talents.

In order to better show the advantages and talents of water ring vacuum pump, it is necessary to promote the quality function of all improvement according to the stock movement of all functions of the commodity, complete the whole performance of its value strength, increase the development advantages of its application ability, use all features of all useful functions in all aspects, and increase the embodiment of its commodity advantage ability, so as to enhance the development of commodity application and function strength In the process of exhibition, we will continue to accelerate the promotion of its commodity utilization and function advantage.

Solenoid Valves Types

What Is A Solenoid Valve

Water Ring Pump

Sealing form of 2BV water ring vacuum pump

In order to make you better use of 2BV water ring vacuum pump, today I sorted out some information about its sealing form for you.

1. Packing seal is to put the packing rich in compressibility and resilience into the packing box of 2BV water ring vacuum pump, and convert the axial compression force of the gland into radial sealing force, so as to play a sealing role.

2. Power seal: when the vacuum pump is running, the pressure head produced by the auxiliary impeller balances the high-pressure liquid at the outlet of the main impeller, so as to realize the seal.

3. Oil seal seal is a self tightening lip seal, which has simple structure, small size, low cost, convenient maintenance and small resistance torque. It can not only prevent medium leakage, but also prevent external dust and other harmful substances from entering 2BV vacuum pump.

4. The labyrinth seal of 2BV water ring vacuum pump has a good sealing effect when it is designed reasonably, processed well, assembled well and rotated at a high speed.

The sealing of 2BV water ring vacuum pump is mainly to improve the efficiency of the equipment. When sealing, you can choose any method.

Water Ring Vacuum Pump Price And Manufacturer

Water Ring Vacuum Pump With Air Water Separator

How To Choose Vacuum Pump

water ring vacuum pump distillation pressure

water ring vacuum pump distillation pressure

Water ring vacuum pump is a new type of industrial mechanical equipment, which has been well received in many aspects. How much do you know about this kind of equipment? In order to better understand this product, the following article explains the distillation pressure of this equipment:

1. The common vacuum distillation process of water ring vacuum pump is mostly operated in the pressure range above 104pa. The mechanism of vacuum distillation is similar to that of atmospheric distillation, and the form of atmospheric distillation device is basically available.

2. The crude vacuum distillation pressure range is 1.o * 104pa-2.7x102pa, and the gas flow is viscous. It is easy to carry out distillation operation in this pressure range.

3. The pressure range of low vacuum distillation is 2.7 * 102pa-1.opa. At this time, the gas is close to the transition flow state, which has strict requirements for the selection, design, manufacture, installation and operation of vacuum distillation device.

4. The pressure range of excimer distillation is 1.0-1.0 * 10-2Pa. At this time, the average free path of gas molecules is similar to the size of the distiller, and the gas is in the state of transition flow.

5. The operating pressure of molecular distillation is below 1.33 * 10-2Pa. In the molecular distillation or quasi molecular distillation device, the flow of gas is the free movement of molecules, that is to say, the collision and interference of other molecules in the system can be ignored. At this time, the distillation process is dominated by the evaporation from the liquid surface.

The introduction of the distillation pressure of the water ring vacuum pump, as well as the various ranges, has been explained in detail in this paper. If you are interested in this knowledge, you can generally understand it. After all, you can understand more about the product knowledge, so as to facilitate your operation and use. I hope you will pay more attention.

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

Liquid Ring Vacuum compressor

water ring vacuum pump structure characteristics

Water ring vacuum pump is composed of impeller, pump body, suction and exhaust disc, water ring formed by water on the inner wall of pump body, suction port, exhaust port, auxiliary exhaust valve, etc. Its structural characteristics are also very unique, which makes it widely used. Let's understand its structural characteristics together.

1. The vacuum degree is as high as 96%, which can replace the two-stage pump;

2. Streamlined impeller design, 30% - 50% energy saving compared with similar products, the impeller is made of stainless steel, with good rigidity, toughness and corrosion resistance;

3. The coaxial design of motor and pump saves installation space. The motor shaft is made of 2Cr13 material, which is corrosion-resistant;

4. 100% oil-free design, conducive to environmental protection;

5. Famous Sino British joint venture brand mechanical seal improves operation reliability;

6. Compact structure, light weight, easy to install and use.

From the introduction above, we have learned the structural characteristics of water ring vacuum pump, and the knowledge will help us to use this product.

Difference Between Dry Screw Vacuum Pump And Claw Vacuum Pump

Water Ring Vacuum Pump Use Details

Micro Water Ring Vacuum Pump

Roots pump - water ring pump

Roots pump - water ring pump

The function of the water ring pump in the unit is to create the preparatory vacuum required by the roots pump. Therefore, the maximum allowable discharge pressure of the water ring pump is required. That is to say, on the one hand, the maximum allowable discharge pressure of the roots pump should be increased as much as possible. On the other hand, the maximum allowable discharge pressure of the roots pump should also be increased.

In general, the limit vacuum degree of single-stage water ring pump is not high, but the pre vacuum required by roots pump produced in China is high, so in fact, the single-stage water ring pump is not used as the pre-stage pump of roots pump, but the two-stage water ring pump which can improve the limit vacuum degree is used as the pre-stage pump, and the two-stage water ring pump can also improve the limit vacuum degree of the unit.

The limit vacuum degree of a Roots pump is low, especially when it is combined with water ring pump, the range of use is limited, and the limit vacuum degree of the whole unit may be lower, but if two roots pumps are connected in series and combined with water ring pump, the limit vacuum degree of the unit can be greatly improved. So in this type, we usually see two roots pumps in series, and then use the two-stage water ring pump as the front pump to form the unit.


Water Ring Vacuum Pump For Chlorine Treatment

Two Stage Vacuum Pump

Vacuum System In Grain Processing Machinery

Treatment of water leakage of water ring vacuum pump

Treatment of water leakage of water ring vacuum pump

Although the operation of water ring vacuum pump itself is not complicated, it can't help but sometimes the pump will be damaged due to improper use, which will cause some problems, such as water leakage of the equipment. I believe that many friends have met it, which will directly affect the production efficiency of the equipment, so what are the causes? What should be done? Let's take a look:

1. Water leakage caused by cracks in pump housing

If the shell cracks and leaks water, you can wipe the cracks clean, and then use adhesive to mend. In case of emergency, cement and egg white can be mixed to form a paste and applied to the crack, which can be used after several minutes of solidification.

2. Water leakage of water ring vacuum pump in operation

If the equipment under operation is found to be leaking water, do not stop it immediately, but keep it at a lower stable speed, and then add water to the cooling system and drain water (Note: when the water filler cap is opened again, a cover should be placed above it, in order to prevent scalding by the water vapor). Make the engine cool down, drive slowly, drive to the nearby concealed place and then drain Except.

3. Water leakage due to shell rupture

In case of water leakage due to breaking of equipment shell or damage of pump internal parts, relevant parts can be replaced according to the actual situation to eliminate the fault.

Through the description of water leakage of the above-mentioned water ring vacuum pump, we can take appropriate measures to solve the problem, so as to avoid affecting the operation of the equipment to a greater extent. In addition, in case of emergency, if the water leakage is not very serious, we can lay a piece of abrasive cloth on the glass plate or flat plate, and then grind the sealing plane flat, or we can also turn the bakelite water seal over and use it again Solve problems in time.

Acid And Alkali Resistant Vacuum Pump

Nitric Acid Vacuum Pump

Natural Gas Decarbonization Vacuum Pump

Construction of mechanical vacuum pump

In order to obtain low vacuum, the most commonly used mechanical pump is oil sealed rotary pump, which is called vacuum pump for short. This kind of mechanical pump is widely used because of its high limit vacuum (0.133 ~ 0.0133pa) and its pumping rate is not very low when the pressure is about 133.3pa.

The structure of a common vacuum pump is shown in Figure 59. The inside of the pump is mainly a round simple stator. There is a precision machined solid circle as the rotor. The rotor is eccentrically arranged above the stator cavity wall to separate the air inlet and exhaust pipes, and plays an air tight role. The two wings s and s' are horizontally embedded in the diameter of the rotor body. They are compressed by a spring clamped in the middle of them (see Fig. 60). S and s' divide the space between the rotor and the stator into three parts. When the piece is boarded at position 60A in figure, the air enters space a from the container to be pumped through tube C. When s leaves with the rotation of rotor, area a in Figure 60b increases. The gas is inhaled through pipe C. When turning figure 60C, s' separates space a from air intake pipe C, and then the rotor continues to turn. The volume of space a gradually reduces. The gas is compressed. Until the pressure is greater than 101325p., the vent valve opens and the gas is expelled. In this way, when the rotor is rotating, the space separated by the two wings continuously aspirates and exhausts, making the evacuated container reach a certain degree of vacuum.

The compression ratio of this pump can be as high as 700:1. Therefore, if there is water gas or other condensable gas in the air to be pumped, when the gas is compressed, swallow gas may condense into liquid and become numerous small drops mixed into the oil. With the internal circulation of the oil in the pump, on the one hand, it will be sent to the pumped container, greatly reducing the vacuum degree of the system; on the other hand, it will damage the quality of the oil, reduce the sealing and lubricating effect of the oil in the pump, and also make the rotor stator wall rusty. In order to solve this problem, in addition to the air inlet in the pump to reduce the compression ratio of air and swallow gas, it is also necessary to install a cold trap or absorption tower before the inlet.

Vacuum System In Vacuum Degasser

Water Ring Pump

Water Ring Vacuum Pump

multistage vacuum pump

multistage vacuum pump

There are two reasons for the damage of multi-stage vacuum pump seal: man-made damage and natural damage. The seal of multistage vacuum pump will be scratched, bruised and squeezed when it is opened or closed. Mechanical damage between two sealing surfaces. Under the action of high temperature and high pressure, atoms permeate and exude each other, and adhesion occurs. When the two sealing surfaces move mutually, the adhesion part is easily pulled and torn. The coarser the surface of multi-stage vacuum pump sealing surface is, the more easily this phenomenon occurs.

When the medium is active, the sealing surface of the multi-stage vacuum pump is worn, washed and cavitating. The floating fine particles in the medium collide with the sealing surface, causing local damage. The high-speed moving medium directly washes the sealing surface, causing local damage. When the medium is mixed and partially vaporized, the gas producing bubble blasting impacts the sealing surface, causing local damage. The erosion of medium and chemical erosion alternately will strongly erode the sealing surface.

The potential difference and electrochemical erosion will occur due to the mutual contact of sealing surfaces, the contact between sealing surfaces and sealing body and valve body, as well as the concentration difference of medium and oxygen concentration difference, resulting in the erosion of sealing surfaces on the anode side. However, in the case of no current generated by the medium near the sealing surface, the medium directly plays a chemical role with the sealing surface, forming chemical erosion and eroding the sealing surface.

The processing quality of sealing surface is not good, which mainly indicates that there are cracks, air holes, ballast and other defects on the sealing surface. The hardness of sealing surface caused by improper selection of surfacing and heat treatment specifications and poor control in the process of surfacing and heat treatment is too high or too low. The hardness of sealing surface caused by wrong material selection or improper heat treatment is not uniform and corrosion-resistant, which is mainly caused by blowing the base metal to the top in the process of surfacing to dilute the alloy composition of sealing surface.

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

Liquid Ring Vacuum compressor

The effect of scale on water ring vacuum pump

Scale has a certain impact on the water ring vacuum pump, because the working fluid (water) usually contains calcium, magnesium and other carbonates. When the water ring vacuum pump is in normal operation, the solubility of carbonate in water decreases with the increase of heating temperature. After long-term operation of the pump, the substance gradually crystallizes and precipitates, and attaches to the disk, impeller, pump body and other components.

After long-term operation of water ring vacuum pump, the scale in the pump is serious, which often leads to the reduction of the clearance between impeller and disk. During the operation of the water ring vacuum pump, abnormal noise, excessive starting current, obvious decrease of suction and vacuum degree, etc. occur, which leads to the decrease of the efficiency of the vacuum pump.

For water ring pump, there are many factors that affect its actual operation efficiency. Therefore, in the daily operation and maintenance process, it is necessary to establish perfect vacuum pump design, transformation and selection as well as operation and maintenance measures from the aspects of temperature and saturation of suction medium, type and temperature of working fluid, exhaust pressure, liquid level and flow of working fluid, so as to ensure that the vacuum system always works under the best working conditions of the hospital. At the same time, it can effectively improve the mechanical efficiency of the vacuum system in the actual operation process

Biogas Compressor

Water Ring Pump

Water Ring Vacuum Pump

Difference between stainless steel vacuum pump and water pump

Sometimes when we talk about stainless steel vacuum pump, some users will think that it is the same as water pump. In fact, they are a very different kind of thing. Let's have a specific understanding.

At present, the foreign market of stainless steel vacuum pump is mainly oil circulation mode, which mainly relies on a rotating wheel. The wheel rotates in a cavity, and the cavity is filled with fluid (oil, some water). The volume of the fluid changes periodically in a week, which leads to the periodic change of the volume of the rest of the cavity, and exhausts and inhales the gas in the suction pipe. And form a vacuum. And the pump is by centrifugal force to throw out the fluid, while forming a negative pressure to attract other fluid into the pump body. In this way, the electric energy of the motor is consumed to drive the pump wheel to convert the kinetic energy and potential energy of the fluid.

Some knowledge about stainless steel vacuum pump is introduced here. If you don't understand anything else, you can contact us. At the same time, I hope you can put forward more valuable opinions and suggestions in the process of using our products.

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

industrial vacuum pumps,vacuum furnaces

How to control the flow of stainless steel vacuum pump

Stainless steel vacuum pump is often used in our life. When it is used, it is necessary to control the flow. Next, we will introduce how to control the flow of stainless steel vacuum pump

1. Adjust the impeller diameter of stainless steel vacuum pump

This method does not use any external components, and the flow characteristic curve changes with the diameter.

2. Speed control

The change of impeller speed directly changes the flow curve of stainless steel vacuum pump, and the characteristics of the curve do not change. When the speed is reduced, the curve becomes flat, and the head and flow are reduced.

3. Bypass valve regulation

In this method, the valve and pump are connected in parallel, and its actual effect is like using a new pump system. The output head of the stainless steel vacuum pump changes, and the flow curve characteristics also change, and the flow curve is closer to the linear.

4. Outlet valve opening adjustment

In this method, the pump is connected in series with the control valve of the outlet pipeline, and its actual effect is similar to that of adopting a new pump system. The output head of the stainless steel vacuum pump does not change, but the flow curve is attenuated.

The above is the flow control method of stainless steel vacuum pump. After understanding these contents, it will be more convenient to use them in the future, and also can effectively improve the work efficiency.

Nitrogen Compressor

Water Ring Pump

Water Ring Vacuum Pump

Explain the advantages of water ring vacuum pump

The water ring vacuum pump is equipped with an axial force motor rotor with fixed blades, which throws water (liquid) to the stator wall of the motor. The water (liquid) occurs in the same boat with the stator of the motor. The liquid ring and the rotor blades of the motor form a variable capacity imported true air pump. So what are the advantages of water ring vacuum pump? Here is a specific introduction. 

The structure is simple, the production accuracy is not high, very simple production and processing; the structure is compact, the pump speed is relatively high, usually can be directly connected with the motor, without speed reduction equipment. Therefore, with a small structure standard, it can have a large displacement and a small floor area; most of the compressed air is isothermal, that is, the temperature of the whole process of the compressed air changes little; because there is no metal material in the pump cavity that conflicts with the surface layer, it is unnecessary to carry out the humidification in the pump, and the damage is not big. 

The airtightness of the rotating parts and the fixed card center can be immediately carried out by the exhaust valve; the water ring vacuum pump also has the advantages of uniform suction, stable and reliable operation, convenient use, quick maintenance, etc. Together with the water ring vacuum pump is mainly used in coal, chemical plants, pharmaceutical industry, mining, paper industry, food, wine, decoration building materials, plastics, metallurgy, electrical and other industries. 

Explosion Proof Water Ring Chemical Vacuum Pump 

Low Price Water Ring Vacuum Pump And Compressor 

Paper Mill Water Ring Vacuum Pump

Oil vacuum pump system

Oil vacuum pump system

It is a problem that every vacuum operator must face up to now to examine the traditional oil vacuum pump system from the perspective of energy saving and emission reduction. The traditional concept of oil-free is only to obtain a clean, carbon free hydride pollution of the vacuum environment. Today's "no oil" not only meets the process requirements of a clean vacuum environment, but also protects the environment from external exhaust, and puts an end to the pollution and emission of waste oil and waste gas.

In the traditional oil vacuum system (2x type rotary vane vacuum pump), the energy utilization rate is generally low, especially the oil diffusion pump of oil booster pump, which is "electric tiger". It is against this background that the molecular pump can be widely used, and it has the potential to replace the traditional diffusion pump in the area below φ 400mm. For the same pump with diameter of 250mm, the power of diffusion pump is five times larger than that of molecular pump, which shows that the energy is wasted greatly. In the long run, the market space with oil vacuum system is bound to be narrower and narrower.

Water Ring Vacuum Pump For Plastic Absorption Molding Equipment

Water Ring Pump

Water Ring Vacuum Pump

Cleaning and maintenance of filter element of vacuum pump

As far as the filter element of imported vacuum pump is concerned, it is actually one of the filtering equipment of vacuum pump. In this respect, it is actually an important working part of filter. Then, as far as the filtering effect is concerned, it is mainly determined by the performance of filter element. There will be many main filtration forms in operation.

First of all, it will include the intake filter element. In this respect, it will effectively prevent solid particles and fine ash from being inhaled into the vacuum pump to a large extent. In this way, to a large extent, it will directly reduce a wear phenomenon of the machine itself, so as to improve a reliable performance of the operation itself. At the same time of prolonging the service life of the pump, it can effectively protect the components of the system itself.

After that, clean the filter element shell of the vacuum pump manufacturer, empty the surrounding of the filter and leave the operation area. Wear protective equipment. Disconnect the filter that needs to be replaced from the system. Slowly open the exhaust port at the top of the filter and depressurize it. Pay attention to safety during the process to prevent material or liquid splashing. Empty the material in the filter, open the filter cover with tools, take out the filter element of Baker vacuum pump, and use plastic bags to install the filter element to be scrapped. Use clean tools and rags to clean the internal of the filter and install a new filter element.

Open the plastic bag at one end of the opening of the filter element, check whether the O-ring is in good condition and in place, and install the material in the way of flowing in from the outside of the filter element and flowing out from the inside of the filter element; wet the O-ring and the socket of the filter element seat with a suitable wetting agent (such as water), hold the end of the filter element close to the O-ring, insert the socket of the filter element into the socket of the filter element seat vertically, and then insert the filter element of Baker vacuum pump After inserting, remove the packing bag of filter element, install the metal cover, and tighten the filter with tools; close the drain port of filter, open the vent valve on the top of the shell, slightly open the inlet valve, so that the material can enter the shell until the liquid overflows from the vent valve on the top of the shell, and then close the vent valve. Pay attention to check if there is any leakage at the disassembly place, and slowly open the filter outlet valve until it is fully opened. Indicates that the replacement is completed; remove the replacement tools and cleaning tools.

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

industrial vacuum pumps,vacuum furnaces

Types of vacuum pumps commonly used in salt industry

Since the 1950s, China's salt industry has undergone significant changes, the output is second only to the United States and the Soviet Union. Most salt production processes use multi effect evaporation to increase the effective temperature difference to improve the output, save energy and reduce consumption, while the first effect low-pressure steam pressure and temperature are basically stable, and the improvement space is limited, so we try to improve the final effect vacuum degree to achieve the purpose.

So how to improve the vacuum degree in salt making process? What type of vacuum pump should be selected to meet the needs of salt production process? This paper gives a detailed explanation of this problem


Model and main features of vacuum pump

There are many types of vacuum pumps, such as water ring vacuum pump, roots vacuum pump, reciprocating vacuum pump and steam jet vacuum pump. Its main features are as follows:

(1) Water ring vacuum pump - this pump can be used alone to extract water vapor or corrosive gas, but in the salt industry, the ability to discharge non condensable gas is limited, and the vacuum effect is general when the exhaust volume is not enough;

(2) Roots vacuum pump - this kind of pump is generally not used alone, and is often used in series with water ring vacuum pump as a vacuum unit. It has the advantages of high vacuum degree, does not consume medium pressure steam, and has better ability to discharge non condensable gas. However, after serious corrosion of rotor and impeller, the effect is poor, maintenance is difficult, and anti-corrosion materials should be selected during selection;

(3) Reciprocating vacuum pump - the biggest disadvantage is that there are many vulnerable parts, piston ring vulnerable and poor sealing;

(4) Steam jet vacuum pump is widely used by salt manufacturers, with good and stable vacuum effect and few maintenance, but the effect of foreign steam jet pump is better than that of domestic one.

Best Water Ring Vacuum Pump

What is water ring vacuum pump

Dry vacuum pump