Energy saving vacuum system

According to the calculation, after recognizing the pumping speed of vacuum pump, it is necessary to carefully consider the type of pump. For example, for the oil sealed mechanical pump with pumping speed of 150L / s, the slide valve pump needs 17kw of driving power, while the cycloid pump only uses 13kw. If the latter is selected for long-time operation, it will save much electric energy, and has small volume, light weight, small oscillation and convenient repair. The transmission power of the direct coupled pump is better than that of the V-belt drive.

Also such as oil laxity pump, oil booster pump thermal power is very low, long starting time, will also consume a lot of energy and time, so can choose low transpiration latent heat oil as working fluid. In the heating system of the pump, the heating power is reduced from 30kW to 20kW, and the pumping effect is the same. Then roots vacuum pump starts quickly, especially suitable for the system with frequent starting. If the oil booster pump or fault expansion pump is selected, the system will not stop the pump during the non operation period, wasting energy in vain. It is also a good way to save energy.

In the vacuum system of roots pump, the pressure difference between the outlet and the inlet of roots pump should not be too large, otherwise it will bring too much power consumption. Because the power consumption of this pump is proportional to the pressure difference. Generally, a small roots pump is connected in series to save power consumption.

CL Sereis Cone Liquid Ring Vacuum Pump

Roots Blowers

Roots Vacuum Pump 

Water ring vacuum pump in chemical fertilizer operation

Chemical fertilizer industry has a decisive effect on China's agricultural development, especially the production of phosphate fertilizer is an industry supported by the key points in the micro regulation and control of national economy in China. Therefore, large and super large water ring vacuum pumps have also been used here. For example, a phosphate fertilizer enterprise in Yunnan Province added three extra large water ring pumps with pumping capacity of 300m3 / min after one transformation. 

In addition, there are many phosphate fertilizer enterprises that still need to have greater ability to pump air when the absolute pressure is 80 ~ 100hPa. However, the vacuum degree of a single water ring vacuum pump is 3300 PA, which can not meet the process requirements. However, if an atmospheric injector is added in front of the water ring pump, the vacuum degree will get certain progress and have common advantages.

It was found in the telephone consultation of many chemical fertilizer enterprises that the reciprocating vacuum pump they used before was gradually screened out because of the large number of vulnerable parts and high noise. The double-stage water ring vacuum pump was replaced by the double-stage water ring vacuum pump, which has achieved good results. According to the practical experience, the double-stage water ring vacuum pump will be used more and more widely in this profession.


CL Sereis Cone Liquid Ring Vacuum Pump

Roots Blowers

Roots Vacuum Pump 

Vacuum booster pump

The vacuum booster pump is mainly used for pumping vacuum from the power assisted braking system of light vehicles, and can also be used for other transport vehicles and construction machinery. The application of vacuum assisted braking system can improve the braking reliability and reduce the driver's fatigue, which is conducive to reduce the incidence of traffic accidents and improve the safety of the whole vehicle. 

At present, the rapid development of domestic light vehicles, which undoubtedly provides a broad market for vacuum booster pump. Therefore, in the process of promotion and use, we must understand and master its performance and principle. Only in this way can the braking performance of the pump be guaranteed effectively, the service life can be extended and the safety protection can be achieved.

The vacuum booster pump is mainly composed of pump body, rotor, slide block, pump cover, gear, seal ring and other parts. When the pump works, the eccentric rotor with four sliding blocks rotates anticlockwise. Under the action of its own centrifugal force, the sliding block slides close to the inner wall of the pump body, and the suction chamber expands continuously. The aspirated gas opens the one-way valve through the suction pipe To keep the pressure) enter the air breathing studio. When the slider is turned to a certain position, the suction is completed. At this time, the aspirated gas is isolated, and the rotor continues to rotate. The isolated gas is gradually compressed and the pressure increases. When the working chamber is connected with the air outlet, the gas is discharged from the air outlet. During the working process of the pump, the sliding block always divides the pump chamber into four working rooms. Every rotation of the rotor, there are four suction and exhaust processes.

Roots Blower Application Industry

Roots Blower Is Used To Transport Combustible Gas

Roots Blower In Shrimp Culture Aeration

Stainless steel vacuum pump requirements for pumping

The stainless steel vacuum pump can be used to pump air to reduce the pressure, but what are the requirements for pumping? 

Combine the pumps correctly. Due to the selective pumping, sometimes a stainless steel vacuum pump can not meet the pumping requirements, and it is necessary to combine several pumps to complement each other to meet the pumping requirements. For example, a titanium sublimation pump has a high pumping speed for hydrogen, but cannot pump helium, while a tripolar sputtering ion pump (or a two-pole asymmetric cathode sputtering ion pump) has a certain pumping speed for argon, both Combined, the vacuum device will get a better vacuum.

In addition, some stainless steel vacuum pumps cannot work under atmospheric pressure and require pre-vacuum; some stainless steel vacuum pumps require a backing pump because the outlet pressure of some stainless steel vacuum pumps is lower than atmospheric pressure, so they need to be combined.

Water Ring Vacuum Pump

Dry Scroll Vacuum Pump

industrial vacuum pumps,vacuum furnaces 

Detailed introduction of magnetic pump

Based on the centrifugal pump, magnetic drive pump is a new type of centrifugal chemical process pump, which uses magnetic coupling to realize the non-contact transmission of torque, no shaft seal, full seal, no leakage, corrosion resistance and pollution-free.

Magnetic pump is a kind of leakage free fluid conveying machinery without dynamic seal. The centrifugal pump in vane pump is mainly designed. It is usually composed of pump body, isolation sleeve and connecting parts, which can bear the pressure. There is a rotating permanent magnetic field outside the sealing cavity, and through the action of the magnetic field, the magnetic rotor parts inside the sealing cavity rotate synchronously, and the rotor parts inside the sealing cavity drive the impeller to work on the fluid. Since there is no dynamic seal in the shielding seal cavity composed of stator components, and the rotating shaft driving the impeller to do work does not pass through the shielding seal cavity, thus ensuring zero leakage and no pollution of the magnetic pump.

Magnetic drive pump (hereinafter referred to as magnetic pump) is usually composed of electric motor, strong coupling device and centrifugal pump. Its main feature is that the magnetic coupling device is used to transfer power. When the motor drives the external magnetic rotor of the magnetic coupling device to rotate, the magnetic line of force passes through the gap and isolation sleeve, acting on the inner magnetic rotor, so that the pump rotor and the motor rotate synchronously, and the torque is transmitted without mechanical contact Because the liquid is enclosed in a static isolation sleeve, there is no dynamic seal, so there is no leakage.

CL Sereis Cone Liquid Ring Vacuum Pump

Roots Blowers

Roots Vacuum Pump

Piston of reciprocating vacuum pump

Reciprocating vacuum pump open type (cylinder) piston diagram is used in a small, slide free compressor.

When the press is working, the vertical component of the force acting on the speed bar presses the piston to the surface of the gas a, and the maximum value of the vertical component n corresponds to the beginning of the press out. The lift unit pressure on the side of the piston is determined by.

For high-speed compressors, it is desirable to minimize the weight of the piston. In addition to the widely used piston made of aluminum alloy in compressor manufacturing, the light-weight cast iron piston diagram can also be used. The cut on the side of the piston can not only reduce its weight, but also reduce the friction work.

The piston of the direct-current compressor is required to pass through the gas and is equipped with a suction valve at the top. The spherical diaphragm in the piston separates the suction volume from the crankcase.

When assembling the compressor, it can ensure that the piston fits the cylinder correctly. However, when the compressor is working, the adjustment achieved will be damaged due to the following reasons: the heat of the piston is higher than that of the cylinder, and the cylinder shape of the piston is distorted due to the influence of the rigidity of the ribs; while the cylinder is suction on one side and press out on the other side, and the temperature of the wall is high at both ends In the middle part, it will deform and lose the correct shape; elastic deformation under the action of gas pressure and piston force. As a result, instead of the contact of the overall bearing surface, the piston only supports on the cylinder with a small area with a particularly high load. Therefore, when the piston with a large diameter has a large diameter, there are often serious friction and scratches on the working surface, especially when the gas body with dust not removed is compressed well.

Water Ring Vacuum Pump

Water Ring Vacuum Pump manufacturers

SSR Roots Type Blowers

How to select vacuum pump correctly for vacuum packaging machine

How to select vacuum pump correctly for vacuum packaging machine?

At present, many customers in the purchase of vacuum packaging at the same time of the selection of vacuum pump is unclear, vacuum packaging machine in general with what vacuum pump?

Vacuum pump is the core part of the vacuum packaging machine and the center of the vacuum packaging machine. It has a great influence on the packaging effect, service life and failure rate during the use of the vacuum packaging machine. How to select vacuum pump correctly for vacuum packaging machine?

The domestic vacuum pump generally refers to the vacuum pump produced by a wholly domestic enterprise, which is characterized by low price and general quality. In the process of use, the vacuum effect is not obvious and the use performance is not stable. But the general small vacuum packaging machine can use the domestic vacuum pump. Because the vacuum chamber of the small vacuum packaging machine is small, the vacuum effect can achieve the effect of vacuumizing in a small range of space and time, so it is no problem to use the general vacuum pump.

If some users choose medium-sized or large-scale vacuum packaging machines, small editors suggest using joint venture vacuum pumps or imported vacuum pumps. After all, as the equipment needed for production, the performance, service life and failure rate of vacuum packaging machines can directly meet the current production needs. In addition, domestic vacuum pumps are more suitable for small-scale production and large-scale production It is not recommended for mass production.

Roots Vacuum Pump

Piston Vacuum Pump

industrial vacuum pumps,vacuum furnaces

What about the leakage rate of water ring vacuum pump

What about the leakage rate of water ring vacuum pump?

With the development of vacuum industry, water ring vacuum pump has been widely used. In use, the most difficult problem for users is to detect the leakage rate of water ring vacuum pump. And it includes internal leakage and external leakage. The external leakage is better to detect, while the internal leakage is more difficult to handle. Here is a brief introduction to the leakage rate detection of the water ring vacuum pump:

1. Most of the internal leakage occurred on the equipment with water-cooled jacket. No doubt was found through checking the external leakage, but there were the following phenomena: the pumping speed of the mechanical pump was obviously low, the indication value of the vacuum gauge was low, the mechanical pump oil was quickly emulsified, and the iron-based parts in the vacuum chamber were obviously rusted. If the above conditions are met, internal leakage can be basically determined. Clean the inner wall first, and then pass cooling water to see if there is any wet point. The wet point is the leakage point.

2. Small leakage and micro leakage are difficult to check. The commonly used method is to use the ionization tube sensitive to some gases in high vacuum state to detect leakage, such as acetone or ethanol. Use a medical syringe to spray acetone or ethanol to the suspicious place. When it is sprayed to the leakage point, the pointer of the ionization meter will swing obviously. In this way, it is necessary to be patient and wait until the indicator value of the ionization meter is stable - that is, the pumping capacity and leakage rate of the vacuum unit are balanced, and then spray. It is better to repeat several times to confirm the leakage point.

3. For larger leakage point, flame method can be used. Based on the principle that air flow can make the flame deviate, vacuum first. For example, use candle or lighter to gradually search around the suspicious point, and it will be found that the flame deviates to the leakage point, then the leakage point can be found.

4. The stainless steel water ring vacuum pump can be selected. It has strong corrosion resistance and will not be used properly!

Water Ring Vacuum Pump

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

Factors affecting the price of 2BV vacuum pump

With the continuous development of industrialization, 2BV vacuum pump has gradually entered our life, but the price of 2BV vacuum pump is different from thousands of yuan to tens of thousands or hundreds of thousands of yuan. In this way, the model we choose or our working efficiency affects the price.

If the price of 2BV vacuum pump is too cheap, the performance of our machine can not be guaranteed. If the price is much lower than that of the same model on the market, we can easily see that the quality of the machine will not be very high. Maybe there is no problem when it is used, but after a period of time, we will surely find the machine itself We can't guarantee the performance of our machines. In order to avoid unnecessary maintenance costs, we still need to guarantee the quality of our machines. We can't buy low-cost machines alone.

In fact, we can think of it very simply. We buy 2BV vacuum pump machinery and equipment to ensure that our production can be used quickly and effectively, and that our machines can be used for a long time. In fact, the price is expensive. Now we all know that the price is one part of the goods, so we can choose the same machinery and equipment for use. We can't just look at the price alone We have to consider all the right things, such as the configuration, performance characteristics, work efficiency, after-sales service and warranty time of the machine, which are all the issues we need to consider when purchasing the machine.

The continuous development of 2BV vacuum pump affects the production and manufacturing of the enterprise, so we can not only want to buy cheap products, but also choose according to its quality, so it will be beneficial to our own use.

Water Ring Vacuum Pump

Water Ring Vacuum Pump manufacturers

Best Water Ring Vacuum Pump

Water ring vacuum pump in chemical industry

Water ring vacuum pump in chemical industry

The application of water ring vacuum pump in chemical industry mainly includes anticorrosive water ring vacuum pump, 2BV liquid ring vacuum pump and water ring vacuum unit. There are many main factors that affect the working power of water ring vacuum pump, such as scale inside, and its exhaust pressure to be mentioned in this paper.

During the operation of vacuum pump, air will be continuously discharged from the pump body, forming the vacuum degree required by the operation at the suction port, so the exhaust pressure is also another main factor affecting the working power of water ring vacuum pump. The exhaust pressure will have a huge impact on the suction capacity and shaft working power consumption of vacuum pump. When the vacuum pump system is working, if its exhaust pressure is higher.

The smaller the suction capacity of the vacuum pump, the greater the power consumption of the corresponding shaft. On the contrary, when the exhaust pressure of the system is smaller, the larger the suction capacity of the vacuum pump, and the smaller the power consumption of the corresponding shaft.

In the process of practical work protection, it is necessary to investigate the exhaust pressure data of vacuum pump system in real time. In case of abnormal exhaust pressure data, corresponding measures shall be taken immediately to update and reconstruct the whole vacuum system, so as to improve the working mechanical power of water ring vacuum pump.

Water Ring Vacuum Pump With Cast Iron Materials

Water Ring Vacuum Pump Of Milking Machine

5HP Water Ring Vacuum Pump

Waste oil treatment of vacuum system

Waste oil treatment of vacuum system

The silicothermic magnesium smelting process is the reduction process of MgO · Cao by Si under the condition of high temperature and high vacuum. The front pump of the main pump used in vacuum engineering is h-slide pump, and the slide pump is oil pump, usually kk-1 × vacuum pump oil. In the reduction process, the dust, water or water vapor in the pellet will enter the pump cavity to make the vacuum pump oil emulsified. The emulsified pump oil will destroy the seal of the pump and make the vacuum degree of the system not reach the rated vacuum degree, that is to say, the effect of the h-slide valve pump depends on the quality of the vacuum pump oil.


In the process of pumping, it mainly depends on the high viscosity of vacuum pump oil, which is not easy to compress and plays the role of sealing, lubrication and cooling in the pump. However, when the dust and water (or steam) in the pellet are sucked into the vacuum pump cavity, the vacuum pump oil is quickly emulsified, dirty and deteriorated, which makes the vacuum pump unable to play its effect. The vacuum degree of the system immediately drops, which affects the rate of reduction reaction and the quality and production of magnesium. In order not to affect the quality and production of crude magnesium during reduction, the oil has to be changed. The polluted waste oil (according to The actual consumption per ton of magnesium vacuum pump oil is 50kg) if it is not treated and reused, the production cost of magnesium will be affected.

Vacuum Pump Unit In Power Plant

Water Ring Pump

Water Ring Vacuum Pump manufacturers

Advantages and disadvantages of variable volume vacuum pump

Advantages and disadvantages of variable volume vacuum pump

Reciprocating vacuum pump, rotary vane vacuum pump, sliding valve vacuum pump and Roots vacuum pump inhale, compress and discharge gas by reciprocating motion or rotation of piston. Their advantage is that the vacuum degree of the new pump is relatively high, but the piston is a running part, so the wear of the piston is inevitable. With the increase of maintenance times, the working vacuum degree will continue to decline until it can not meet the production requirements. This kind of pump has the disadvantage of high working noise, high fuel consumption and high failure rate. Generally, it needs to open a spare one.

This invisibly increases the cost of equipment investment and operation. In addition, if this kind of pump is used to pump water vapor and other condensable gases, the lubricating oil will be emulsified, so it can only be used to pump non condensable (air) gases, and it can not pump medium with particles, which limits its application scope.

The water ring vacuum pump is an eccentric rotor with multiple blades installed in the pump shell to rotate, throwing water to the pump shell to form a water ring concentric with the pump shell, and the water ring and the rotor blades form a periodic change of volume, so as to suction, compress and discharge the gas. It has the advantages of large suction capacity at low vacuum and direct suction of condensable gases such as water vapor. Its shortcomings are low vacuum, inability to suck granular media, high-speed rotation of the rotor is not easy to do anti-corrosion treatment, so it can not suck corrosive media.

DLV Series Double Stages Water Ring Vacuum Pumps

2SK Liquid Ring Vacuum Pump

AT/TC Series Cone Two Stage Water Ring Vacuum Pump

SK Vacuum Pump Material

SK vacuum pump uses water as working fluid to extract vacuum, which provides help for many industries. In order to make the equipment use longer, besides correct operation method and usual maintenance, it can not be ignored in material selection. What material is it mainly made of?

1. Impeller stainless steel, over-current parts stainless steel and integral stainless steel.

2. Grey cast iron: Grey cast iron is the cast iron obtained by full graphitization in the first stage. All or most of the carbon exists in flake graphite, and the fracture surface is gray and dark. Usually used to make SK vacuum pump material.

3. Ductile iron: Ductile iron is spheroidal graphite obtained by spheroidizing and inoculation treatment, which effectively improves the mechanical properties of cast iron, especially the plasticity and toughness, thus obtaining higher strength than carbon steel. Its comprehensive performance is close to that of steel. It is precisely based on its excellent performance that SK vacuum pump can be cast.

It can be seen that the material used in SK vacuum pump is mainly stainless steel. This material can effectively reduce the rust of equipment, thus making the cleaning of equipment more simple and convenient, strengthening the hardness of equipment and reducing the damage to equipment.

Piston Vacuum Pump

Dry Type Oilless Vacuum Pumps

Liquid Ring Vacuum Pump Corrosion Repair

After using liquid ring vacuum pump for a period of time, if the maintenance is not in place, it is easy to cause corrosion, which can be divided into two categories: overall corrosion and local corrosion. The former occurs more evenly on all surfaces of the equipment, while the latter occurs only locally. For example, pitting corrosion, crevice corrosion, intergranular corrosion, stress corrosion cracking, corrosion fatigue, hydrogen corrosion cracking, wear corrosion, delamination corrosion and so on. After serious corrosion, the working efficiency of the equipment is reduced and even needs to be replaced. Enterprises invest heavily. Corrosion repair is the key to solve this kind of problem.

Repair steps:

(1) Surface treatment: thoroughly remove the oxide layer on the surface, and clean the surface with acetone.

(2) Harmonizing material: Harmonize strictly according to the proportion, and mix evenly until there is no color difference.

(3) Daubing material: first, apply a thin layer of material, to ensure that the bonding and full coverage, and then evenly apply the material to the repair surface, to meet the required repair thickness can be.

(4) Curing: 24 hours/24 C (material temperature). The curing time can be reduced by half for every 11 C increase in material temperature, but the increase temperature should not exceed the material's withstanding temperature.

(5) Installation and precautions: Installation should be carried out according to assembly requirements. Repair and protection materials should avoid being knocked or impacted by external forces. If materials affect assembly, grinding method can be used to deal with them. Never knock, so as to avoid damaging other materials.

It is one of the effective measures for corrosion repair of liquid ring vacuum pump to use polymer composite repairing material to carry out surface organic coating anticorrosion. Surface adhesion protection can be widely used in the repair and pre-protection of abrasion, cavitation and corrosion parts. It has good chemical resistance, excellent mechanical properties and bonding properties. Compared with the traditional welding repair of pressure vessel, it has the characteristics of simple construction, low cost, safety performance and good repair effect.

2SK Liquid Ring Vacuum Pump

SY/2SY Series Compressor

Water Ring Vacuum Pumps Classification

Equipment is the basis of production, so whether it can be used normally and efficiently is directly related to whether production can be carried out efficiently, which requires us to standardize operation in use, and daily maintenance can not be ignored, but the premise is to select a truly suitable equipment, and there are many types of water-ring vacuum pump, each of which has its own characteristics. Applicable places are also different. In order to facilitate your choice, the following sections introduce 2BV water ring vacuum pump, SK water ring vacuum pump and 2SK water ring vacuum pump for your choice. Friends in need can refer to them:

2BV Water Ring Pump

Suitable for gas and water vapor extraction. The suction pressure can reach 33 mbar absolute pressure (97% vacuum degree). When transformer oil is used as working fluid (called oil ring vacuum pump), the suction pressure can reach 6.7 mbar absolute pressure (99.3% vacuum degree), which can completely replace the reciprocating type.

2BE Water Ring Pump

This equipment belongs to high efficiency and energy saving products. It is usually used for pumping gases without solid particles, insoluble in water and non-corrosive in order to form vacuum and pressure in sealed containers.

SK Water Ring Pump

This type is used to suck or press air and other non-corrosive, water-insoluble, solid-free gases in order to form vacuum and pressure in sealed containers to meet the process requirements. Inhaled or pressurized gases are allowed to be mixed with a small amount of liquid. Because the compression process of gas is isothermal in the working process, it is not easy to cause danger when compressing and sucking explosive gas, so it is more widely used. The working vacuum range is - 0.03 - 0.08MPa.

2SK Water Ring Pumps

This series is equivalent to two SK Series in series. Since SK series can only reach the ultimate vacuum of - 700 mmHg, 2SK series has been developed to achieve higher vacuum and higher pumping rate under high vacuum.

Through the introduction of various categories of water-ring vacuum pump, we can understand the characteristics and application of each classification, which is helpful for the future purchase. Only by choosing the appropriate equipment can we give full play to its performance advantages and improve production efficiency.

Vacuum-pump-equipment-suitable-for-degassing-process

Vacuum-pump-for-pneumatic-conveying

Vacuum-Pump-Vacuum-Drying-Technology

Liquid Ring Vacuum Compressor Selection

In fact, the realization of technological process often has a great relationship with the adaptability of equipment. Therefore, the selection of appropriate type and design requirements of water ring vacuum pump is an important prerequisite for completing production tasks and achieving good benefits. The following points are summarized for you:

1. The working pressure should meet the requirement of the limit vacuum and working pressure of the equipment.

2. Choose the working point of the equipment correctly. Each pump has a certain range of working pressure.

3. Under its working pressure, the equipment should be able to discharge all the gas produced in the process.

4. Correct combination. Because the equipment has selective air pumping, sometimes the selection of one equipment can not meet the requirements of air pumping, and several combinations are needed to complement each other to meet the requirements of air pumping.

5. Understand the requirements of equipment for oil pollution. If the equipment is strictly oil-free, we should choose all kinds of oil-free types; if the requirements are not strict, we can choose oil, plus some anti-oil pollution measures, such as refrigeration trap, baffle, oil trap, etc., can also meet the requirements of clean vacuum.

6. Understand the composition of the exhausted gas. The gas contains no condensable vapor, particulate dust, corrosion and so on. Select the appropriate pump for the exhausted gas. If the gas contains vapor, particles, and corrosive gases, it should be considered to install auxiliary equipment such as condenser, dust collector in the intake pipeline of the pump.

7. How does the oil vapor discharged from the equipment affect the environment? If the environment is not allowed to be polluted, oil-free ones can be chosen, or oil vapor can be discharged outdoors.

8. Whether the vibration caused by the working equipment has an impact on the process and environment. If the process is not allowed, vibration-free pumps or anti-vibration measures should be selected.

Above is the key point of water ring vacuum pump selection. In addition, according to the actual situation, we also need to consider equipment operation and maintenance costs, and ultimately choose a suitable equipment.

liquid-ring-vacuum-compressor-of-Deaeration

Heavy-duty-water-liquid-ring-vacuum-compressor

Best-liquid-ring-vacuum-compressor

Vacuum Pump in Chemical Plant

Any pressure below atmospheric pressure is called vacuum. Vacuum is the degree below atmospheric pressure, usually expressed in percentage or millimeter water column (or mercury column). If the vacuum degree of a certain equipment is 80%, it means that the pressure in the equipment is 20% of the atmospheric pressure, that is, when the atmospheric pressure is 1 kg/cm, the pressure in the equipment is 0.2 kg/cm. Therefore, when the percentage is used to indicate the degree of vacuum, it is to indicate the degree of gas extraction. When expressed by a millimeter water column, the residual pressure is expressed. If the vacuum in the spare water column is 3x10-2mm, the pressure in the equipment (i.e. residual pressure) is 3x10-2mm water column.

In chemical plants, some production processes are often carried out under atmospheric pressure, such as vacuum evaporation, vacuum distillation and vacuum suction and filtration.

In order to achieve vacuum, it is necessary to have a vacuum pump, which is the equipment to extract gas. Vacuum pumps can be roughly divided into reciprocating, rotary and jet pumps.

1. Reciprocating vacuum pump

The principle of reciprocating vacuum pump and reciprocating compressor is exactly the same, but the valve distribution mechanism is different from the intake and exhaust valves. Spring valves are generally used in reciprocating compressors, while the so-called sliding valve valve valve distribution mechanism is mostly used in reciprocating vacuum pumps.

2. Water ring vacuum pump

Water ring vacuum pump is a kind of rotary vacuum pump. It can be used for compressed gas besides suction gas. for example

The maximum pressure of gas discharged by water ring vacuum pump can reach 1.5 kg/cm, so it is also called water ring compressor. This kind of pump should avoid solid particles entering the pump body when working.

High-quality-2BV-cast-iron-stainless-steel-water-ring-vacuum-pump-price

stainless-steel-water-ring-vacuum-pump-price

2BV-Series-Water-Ring-vacuum-pump-and-compressor-price

SK LIQUID RING VACUUM PUMP SEPARATION PROCESS

SK liquid ring vacuum pump is a complete system with two water ring vacuum pumps as vacuum acquisition equipment and vacuum tank as vacuum storage equipment. Compared with the separation process of SK liquid ring vacuum pump, we still don't know. Today we will introduce this problem to you.

1. Mixing and accelerating stages. Slag-containing wastewater and flocculant are mixed in the feeding chamber and accelerated to ensure that the slag-containing wastewater enters the separation zone in the best state.

2. Clarification stage. Under the action of centrifugal force, flocculant particles quickly separate and settle in the straight section of the drum. The separated supernatant is discharged through the weir at the end of the drum.

3. Compression stage. The sludge is further compressed by centrifugal force and pore water is released when the settling solid is pushed to the discharging end by the screw propeller.

4. Two-way extrusion stage. In the conical section of the drum, wastewater sludge is subjected to biaxial extrusion. The screw conveyor is properly designed to produce extrusion force along the axial direction. With the compression of centrifuge, the capillary water of sludge is further extruded.

5. Solid residence time, when the amount of sludge and mud entering SK liquid ring vacuum pump changes, in order to maintain the best dewatering effect, the total solid content in the centrifuge drum is continuously controlled. SK liquid ring vacuum pump has good effect, and the water content of sludge is about 70%.

vacuum-pump-for-cnc-machine

liquid-ring-vacuum-pump-in-ceramic-vacuum-filter

Liquid-Ring-Vacuum-Pump-Application-Advantage

Liquid-Ring-Vacuum-Pump-and-Liquid-Ring-Compressor-Working-Principle

Factors Influencing the Price of Water Ring Vacuum Pump

Water ring vacuum pump has a wide range of applications in our life. It has many advantages and has been unanimously recognized by users. For customers, when choosing and purchasing equipment, the price of water ring vacuum pump is more concerned by everyone. Let's take a look at the factors affecting its price.

1. The quality of spare parts and raw materials. The water ring vacuum pump mainly consists of filter, marble, exhaust hood and other accessories. The quality of these spare parts can directly affect its price.

2. The material of the pump body can be divided into nodular cast iron and grey cast iron. For example, spheroidal graphite is obtained by spheroidizing and inoculation treatment, which effectively improves the mechanical properties of cast iron, especially the plasticity and toughness, thus obtaining higher strength than carbon steel. Therefore, material quality is also one of the important factors affecting its price.

3. Technical content of water ring vacuum pump. As we all know, the maturity of technology, the stability, reliability and life of products manufactured by high-standard processing and production equipment have an impact.

4. Regionality, most domestic products are now facing the dilemma of having spare parts without technology and spare parts without technology. Because of the regional problems of raw materials, the prices of pumps are uneven.

That is to say, there are many factors affecting the price of water-ring vacuum pump, whether it is the difference of internal material, technology, or regional differences, which can directly affect its price. When choosing and purchasing products, we should consider the price according to the actual situation, while not ignoring the quality, hoping that the above content can bring some help to you.

Water-Ring-Vacuum-Pump-for-Plastic-Extrusion-Line

Vacuum-Pumps-Maintenance-Operational-Guidelines

Vacuum-Pump-Application-Range

How-to-Select-Vacuum-Pump

Two-stage water ring vacuum pump

Two-stage water-ring vacuum pump is a water-ring vacuum pump composed of two impellers in series on one pump shaft. Generally, the outer diameter of the second stage impeller is the same as that of the first stage impeller, but the width of the impeller is reduced by half. The gas is discharged after two stages of compression.

Characteristic:

1. Gas volume curve decreases more gently, so it still has larger gas volume under higher vacuum or higher exhaust pressure, and its working condition is stable. The single-stage single-acting water-ring vacuum pump has a sharp drop in gas volume at a higher vacuum (higher than the critical vacuum of the pump), and its work is very unstable. It has a greater noise and even vibration. Single-stage double-acting water ring vacuum pump can not achieve such a high vacuum.

2. Higher vacuum or exhaust pressure can be obtained than single stage water ring vacuum pump.

3. Two-stage water-ring vacuum pumps are especially suitable for combination with high vacuum pumps such as Roots pump and steam jet pump. As their pre-vacuum pumps, the whole unit can obtain stable pumping performance in a larger vacuum range.

4. Generally, it is single-acting in the axial direction, but also double-acting in the axial direction and radial direction. Its structure is more complex.

5. The structure of multi-stage water ring vacuum pump with two or more stages is complex, and its compression capacity is not proportional to the increase, so it is generally not used.

Singel-Stage-rotary-vane-Vacuum-Pump-for-refrigerating-system

water-cooling-type-Roots-vacuum-pump

Mini-effienct-dry-screw-vacuum-pump