Various vacuum valves

Vacuum valves mainly include vacuum ball valve, vacuum butterfly valve, vacuum diaphragm valve, vacuum gate valve and vacuum stop valve. The types of vacuum valves are different, and the applicable occasions are also different. The following describes the characteristics and common areas of valves of different types such as gate valve, globe valve, butterfly valve and ball valve. Finally, according to the different use requirements, how to select the valve, such as according to the prevention of backflow of medium, according to the adjustment of medium parameters to select the valve.

The vacuum gate valve is used as a cut-off medium. When it is fully open, the whole flow is straight through, and the pressure loss of medium operation is the minimum. Gate valve is usually suitable for the condition that it is not necessary to open and close frequently and keep the gate fully open or closed. Not suitable for regulating or throttling. For the high-speed flow medium, when the gate is partially opened, it can cause the gate vibration, and the vibration may damage the sealing surface of the gate and the valve seat, and throttling will make the gate suffer from the erosion of the medium.

From the structural form, the main difference is the form of sealing elements used. According to the form of sealing elements, gate valves are often divided into several types, such as wedge gate valve, parallel gate valve, parallel double gate valve, wedge double gate valve, etc. The most common forms are wedge gate valve and parallel gate valve.

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Vibration source of water ring vacuum pump unit

There are many kinds of vibration sources in the working process of water ring vacuum pump units. They are not only the vibration source of the pump itself rotating movement, but also the vibration excitation of the prime mover (such as motor, diesel engine, etc.). When the chemical pump fails, there is also an impact effect inside its components, and at the same time, the water flow will also have a certain impact effect. Here is a brief introduction.

So many vibration sources mixed together will inevitably affect each other, and the fault signal is often submerged in the background noise and interference, which brings great difficulty to the pump fault diagnosis. The existing signal analysis methods have not made a breakthrough in the separation of vibration signals from multiple excitation sources and the feature extraction of vibration signals with low signal-to-noise ratio, but still need to do more Step by step.

At present, people mainly use data-based machine learning method for pump fault classification. The characteristic of this method is that a large number of sample data is needed, but when the sample data is difficult to obtain, this method shows its limitations. Therefore, it is necessary to study a small sample fault pattern classification method with higher generalization ability, so that it can use limited data samples to get better diagnosis results.

Water Ring Vacuum Pump

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

water ring vacuum pump working principle and operation

When the gas discharged from the vacuum pump is no longer used, a gas water separator connected to the exhaust end of the pump can be used as a water tank instead of itself. After the waste water and part of the water are discharged into the gas water separator, the gas and water are separated, the gas is wiped out by the wiping gas pipe, and the remaining water is supplied to the pump for further use through the return pipe.

The impeller is installed in the pump body 2 eccentrically. Therefore, when the impeller 3 rotates, the water forms a rotating water ring 5 on the inner wall of the pump body under the action of centrifugal force. The upper inner surface of the water ring is tangent to the hub and rotates in the direction of arrow. During the first half rotation, the inner surface of the water ring is gradually separated from the hub. Therefore, a closed space is formed between the impeller blades and the water ring. With the rotation of the impeller, The space is gradually expanded, and the space gas pressure is reduced. The air is sucked into the space: during the second half rotation, the inner surface of the water ring is gradually close to the hub Yu, the space between the blades is gradually reduced, and the space gas pressure is increased. When the air pressure is higher than the exhaust port pressure, the gas between the blades is discharged, so that every rotation of the impeller, the space between the blades is sucked and discharged once, and many spaces work ceaselessly, The pump continuously draws or presses the gas.

In the process of work, work will generate heat, which will make the working water ring hot, and at the same time some water and gas will be discharged together. Therefore, in the process of work, the pump must be continuously supplied with water to cool and supplement the water consumed in the pump, so as to meet the working requirements of the pump.

When the gas discharged from the pump is no longer used, a gas-water separator is connected at the exhaust end of the pump (a water tank can be made by yourself to replace it). After the waste water and part of the water are discharged into the gas-water separator, the gas is separated, the gas is wiped out by the wiping gas pipe, and the left water is supplied to the pump for further use through the return pipe. With the extension of working time, the temperature of working water will increase continuously. At this time, a certain amount of cold water (tap water) shall be supplied from the water supply of gas-water separator to reduce the temperature of working water and ensure that it can meet the required technical requirements and performance indicators.

When it is used as a compressor, the pump exhaust 11 is connected with a gas water separator, and the gas water mixture enters the gas water separator and then automatically separates. The gas is delivered to the required system through the exhaust pipe, and the working water is discharged through the automatic overflow switch. When the gas is compressed, the working water is very easy to heat up. The water is discharged from the pump outlet, and the temperature will become higher. Therefore, at the bottom of the gas water separator, cold water should be continuously supplied, In order to supplement the discharged hot water, it can play a cooling role when asked, so that the working water temperature is not too high, so as to ensure the performance of the compressor, meet the technical indicators and meet the process requirements.

Water Ring Vacuum Pump

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

Roots vacuum pump unit extraction rate

Roots vacuum pump set should consider various parameters, such as working efficiency and pumping speed. Each problem may be the cause of equipment failure. Therefore, in order to better use the device, we need to further understand and understand it. Today I will concentrate on you. A simple analysis of the pumping speed of the Roots vacuum pump unit, I hope to help everyone.

The pumping speed of the Roots vacuum pump unit varies greatly due to the difference in the front pump and the working pressure. In the design, the roots vacuum pump unit should have good applicability and economy according to the specific working conditions and the requirements of the vacuum system.

When the Roots vacuum pump is used in vacuum engineering, it is usually connected in series with the front vacuum pump, such as a rotary vane pump, spool valve pump, water ring pump or other dry pumps that directly discharge the atmosphere to form a unit. Used as a mechanical booster pump in the medium and low vacuum range. The working principle is the same as the Roots blower. The actual pumping speed of the Roots vacuum pump is closely related to the theoretical pumping speed and the zero flow compression ratio.

 In summary, the pumping speed parameter of the Roots vacuum pump unit is a very important parameter in practical applications. I hope that by understanding the pumping rate of the equipment, you can better understand the points of use of the equipment.

Water Ring Vacuum Pump

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

Introduction to the connection mode of water ring vacuum pump

1. When wrapping with polyester insulating tape, it is necessary to press half of the first circle, wrap 8-12 layers. After wrapping with water ring vacuum pump, wrap two layers with plastic tape for strength.

2. Strip the copper core of the cable on the water ring vacuum pump about 30-35mm long, and wipe the copper wire with abrasive cloth to make it bright. Similarly, strip the copper wire of the external three-core cable 30-35mm, and wipe it with abrasive cloth.

3. Insert the three core cable and the stripped copper wire part of the external cable in pairs, then bind and tie with a thin copper wire as shown in the figure, cut off the remaining part, and press flat with scissors to prevent tying.

4. The three wire ends shall be firmly welded with solder respectively, and the surface of the solder joint shall be smooth without burr and false welding. If the welding is not firm or smooth, the water ring vacuum pump shall be re welded until the requirements are met.

5. Wrap three wires together with plastic tape and bind two layers. The first layer shall be more than 50mm over the end of each conductor insulation layer and the second layer shall be more than 50mm over the end of the first layer.

6. After binding, take a basin of cold water to soak the wrapped thread in water safely. After 12 hours, use a 500V megohmmeter to measure the insulation not less than 50 megohm. Otherwise, bind it again until it meets the requirements.

7. The grounding wire of the water ring vacuum pump shall also be wrapped according to the wiring process requirements of the submersible cable.

Dry Type Oilless Vacuum Pumps

Liquid Ring Vacuum compressor

industrial vacuum pumps,vacuum furnaces

Classification and performance of vacuum pump

In recent years, a new type of vacuum pump has been developed, which can be realized with only one pump, from atmospheric pressure to high vacuum. But generally speaking, in order to obtain high vacuum, ultra-high vacuum and ultra-high vacuum, a series of vacuum pumps are used to complete the pumping task. Therefore, it is very important for the user to know the working principle, main performance, structural characteristics and classification of the pump.

Vacuum pump is a device used to produce, improve and maintain vacuum. According to its working principle, it is basically divided into two types: gas transfer pump and gas capture pump. The gas transfer pump is a vacuum pump which can make the gas continuously inhale and discharge out of the pump to reach the suction port. This kind of gas transfer pump includes two kinds: positive displacement pump and momentum transfer pump.

1. Positive displacement vacuum pump

The volume vacuum pump is a device that uses the periodic change of the volume of the pump cavity to complete suction, compression and exhaust. The gas is compressed before being discharged. This kind of pump is divided into reciprocating type and rotary type.

(1) Reciprocating vacuum pump uses the reciprocating motion of the piston in the pump cavity to draw in, compress and discharge the gas. Therefore, it is also called piston vacuum pump.

(2) Rotary vacuum pump uses the rotary motion of the piston in the pump cavity to suck, compress and discharge the gas. There are many kinds of pumps of this kind.

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How to avoid clogging of water ring vacuum pump

In view of the problem of impurities blocking the water ring vacuum pump, the method that every block must be removed at the beginning of operation and the block can not be removed overnight is adopted. Although this avoids stoppage, the pump body is often disassembled, resulting in wear of the pump port ring and other components. So, in addition to these methods, in what ways can congestion be avoided?

1、 Ensure safe operation of key equipment

It is required that the catalyst should be injected in a certain proportion, and the injection stop time should not exceed 15rain. Otherwise, the viscosity of the melt will be reduced and the product quality will be reduced. In order to ensure the smooth operation of water ring vacuum pump, some assurance measures must be taken.

2、 Change lubricating oil and wear parts regularly

The main moving parts of the vacuum pump are worm, worm wheel, slide block, new piston, etc. The wear of these parts will directly lead to the reduction of pump flow or no amount at all. At present, the solution is to change lubricating oil, wear parts and clean the hydraulic cavity regularly.

3、 Strict operation procedures

The start and stop of water ring vacuum pump shall be operated in strict accordance with the use requirements. When starting, start the pump with zero output, and charge nitrogen to the pressure stabilizing plate when there is a certain pressure at the pump outlet. Avoid large deformation of diaphragm caused by nitrogen filling to prevent diaphragm rupture; increase the output of pump slowly; stop the pump slowly to reduce the output of pump.

4、 Strengthen pump maintenance

During operation, the water ring vacuum pump shall be inspected regularly, especially the lubricating oil level, pump sound, outlet pressure, nitrogen buffer tank pressure, etc. The diaphragm of the pump body and the diaphragm of the nitrogen buffer tank shall be replaced regularly to effectively prevent the catalyst stop injection accident caused by the damage of two pumps at the same time.

After the above measures are taken, the water ring vacuum pump can cut up the large solid mass, so as not to block it. It not only solves the blockage problem of vacuum pump better, but also avoids the repair problem caused by the blockage. It does not need to dismantle the pump body and saves a lot of manpower and material resources.

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How to change the speed of vacuum pump

Now the vacuum pump factory will introduce the method of changing the speed of vacuum pump, hoping to help you.

1. Change the frequency of power supply, i.e. use frequency converter. The advantage of frequency converter is that it can provide a closed-loop control for vacuum pump, but it is easy to cause torque loss under large load.

2. Change the transmission ratio of the gearbox. It is a very economical way to change the transmission ratio of the gearbox of the vacuum pump, but it can only provide a single uncontrollable speed. Vacuum pump has different design, they have their own characteristics and advantages and disadvantages. For a long time, the use cost of vacuum pump is an important factor that affects people's choice of vacuum pump. After research and development, it has great advantages in stability and maintenance cost in the future.
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Causes of motor overload of water ring vacuum pump

Causes of motor overload of water ring vacuum pump

Water ring vacuum pump used for a long time, there may be a series of problems, such as motor overload, so what is the reason?

1. In the process of pumping, if the pipeline is blocked and the water ring vacuum pump is overloaded, the motor will be overloaded after a long time.

2. Its water inlet generally does not need water inlet pressure. If the water inlet pressure is too large, too much water will cause motor overload.

3. Sometimes in use, the air inlet of the water ring vacuum pump will have a certain amount of water entering, if the water enters for a long time, it will cause its motor overload.

4. After a long time of use, the performance of the bearing will slow down. If there is a problem in the bearing, if it is not found in time, it will also cause overload.

5. In the pipeline installation of water ring vacuum pump, if the outlet pipeline is too long or the diameter of the outlet pipeline is smaller than the diameter of the exhaust port, it will often cause overload.

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The reason of high temperature of vacuum pump

Now I'd like to introduce the cause analysis of the high temperature of the vacuum pump. I hope it can help you. Let's have a look together

1. The motor has high power, large working current and large heat output.

2. Fan speed is low, wind pressure, air volume is small.

3. The number of fan blades is small and the air volume produced is small.

4. The motor is attached with dust and oil, which reduces the heat dissipation capacity.

5. The voltage of the bus where the vacuum pump motor is located is 380V. Due to the uneven voltage drop and load distribution of the cable, the actual voltage applied to the motor is only 365v, and the low voltage results in high operating current.

Do you understand the introduction of vacuum pump? I hope that a brief introduction can bring benefits to you and we will serve you wholeheartedly.

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

Liquid Ring Vacuum compressor

Cooling mode of heat dissipation of roots water ring vacuum unit

Cooling mode of heat dissipation of roots water ring vacuum unit

When the roots water ring vacuum unit carries out energy conversion, there is always a small part of loss converted into heat. It must continuously dissipate the heat through the motor shell and surrounding medium. This process of heat emission is called cooling. There are four commonly used methods:

1. Internal cooling of the rotor. In order to make the roots water ring vacuum unit work under higher pressure difference, a more effective cooling method can be adopted, that is, the rotor is cooled by circulating oil, and the two ends of the vacuum unit shaft are respectively provided with oil holes and oil diameter shaft heads, which are driven through the inner wall of the rotor and then discharged from the other end.

2. Air cooling. That is to say, the air inhaled by the interstage or two-stage pump is compressed and transmitted through the combined muffler with comprehensive absorption and phase difference.

3. Cool down. The roots water ring vacuum unit generates heat due to the transportation and compression of gas, which must be transmitted from the rotor to the shell.

4. The oil film of the rotor is cooled. The cooling method is to connect an oil pipe at the inlet of roots water ring vacuum unit, and take the heat of the rotor away with the evenly dripping cooling oil.

When the temperature of roots water ring vacuum unit is too high, different cooling methods can be adopted to avoid loss

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

Liquid Ring Vacuum compressor

The correct way to start water ring vacuum pump

Vacuum in engineering technology refers to a gas state in which the pressure in a given space is lower than a standard atmospheric pressure. Water ring vacuum pump has compact structure, reliable working balance and even flow. It is often used to transport or pump flammable, explosive and corrosive gases in chemical production. The efficiency of water ring vacuum pump is very low because the impeller stirs the liquid and loses a lot of energy. Next, the correct way to start the water ring vacuum pump is introduced.

1. Confirm that the water ring vacuum pump motor has been powered on and has the starting conditions. Contact the relevant post operators to confirm that the pump does not run and the turning gear is even and flexible. Open the pump inlet valve and open the 1 / 3 valve position, start the motor, and immediately open the water injection valve on the steam water separator after starting the motor, so that the water in the pump body and the steam water separator can reach the balance state; Stop the pump immediately in case of any of the following conditions: abnormal leakage, abnormal vibration, abnormal sound, peculiar smell, spark, flue gas, and continuous current.

2. Adjust the inlet and outlet valves of the pump, make sure that the vacuum degree at the inlet of the pump is within the required range, the outlet flow is normal, and the motor current is within the normal range. Adjust the pump flow, contact the operator of the relevant post, and make sure that the pressure at the inlet and outlet of the water ring vacuum pump is stable. Note: the water ring vacuum pump is strictly prohibited from idling without liquid to avoid damage to parts; it is strictly prohibited to start the pump with full water; after the water ring vacuum pump is started, it is strictly prohibited to run for a long time without opening the outlet valve.

3. Confirm and adjust after startup: confirm that the flow and pressure of the pump are normal and stable, confirm that the vibration of the pump is normal, confirm that the external temperature of the bearing box is not more than 70 ℃, confirm that there is no leakage, confirm that the temperature and pressure of the cooling water are normal, confirm that the current of the motor is normal, and confirm that the vibration and sound of the motor are correct

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

industrial vacuum pumps,vacuum furnaces

water ring vacuum pump working fluid

As a very common working fluid or coolant, water plays an indispensable role in the normal operation of the water ring vacuum pump. In addition to recycling, it can also be recycled in the water ring vacuum pump. Some details need to be noted to avoid unnecessary troubles. Let's take a close look at the problems to be learned when using the working fluid of water ring vacuum pump.

When working fluid is recycled, it can be free of impurities. If it is to be recycled, it needs to be used together with water tank and cooling device. Generally, the recommended operating water temperature is 15-25 ° high, which will affect the performance of pump equipment, such as vacuum degree and pumping capacity.

In general, it is necessary to install equipment for cooling. More importantly, in the field process, temperature control. Most industries are actually using circulating water without waste. If water can be used, circulating pipes must be installed. In general, the working fluid of water ring vacuum pump should be soft water for industry.

Water ring vacuum pump has certain requirements on water temperature and water quality in the working process, mainly to avoid the corrosion of internal impeller and other components, and whether the vacuum generated is pure, while the common pump is circulating water, which can save resources. Try to use industrial soft water to avoid damage to the equipment, and then better achieve the purpose of multiple water use, environmental protection and resource conservation.

Water Ring Vacuum Pump manufacturers

What is water ring vacuum pump

industrial vacuum pumps,vacuum furnaces

Sealing problem of vacuum pump

Due to the particularity of dry gas medium, it is required to seal the vacuum pump to ensure that the dry gas can neither leak out nor leak in. In terms of the current expansion ring sealing form, it is difficult to meet this requirement.

Now, due to the introduction of nitrogen, the nitrogen pressure is always kept at 0.02MPa, while the pressure in the vacuum pump fluctuates between - 0.08 ~ 0.02MPa, such a part of nitrogen

The leakage into the pump is mixed with the medium, which not only consumes nitrogen, but also affects the quality of raw materials. At the same time, the lubricating oil in the oil tank is also sucked into the air cavity with nitrogen, It increases the consumption of lubricating oil, and the oil filling hole needs to be sealed well during the operation of pump, which brings inconvenience to daily maintenance. Therefore, the fundamental method to solve the leakage of seal lies in improving the reliability of seal itself, and the oil filling method also needs to be improved.

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Water Ring Vacuum Pump

Water Ring Vacuum Pump manufacturers

vacuum pump descaling method

vacuum pump descaling method

Vacuum pump used for a long time, will inevitably produce dirt, today for you to introduce a small way to remove dirt.

1. Mechanical descaling is a very effective method for all kinds of scale, mainly through the manual use of tools to remove scale, but the workload is large, the whole machine must be disassembled, it is better to have a planned shutdown and overhaul of the vacuum pump at the same time.

2. Chemical descaling method is to inject chemical detergent into the dry vacuum pump to make it react with the scale in the vacuum pump.

The small method of vacuum pump descaling is introduced here. At present, mechanical descaling and chemical descaling are commonly used. You can choose according to the actual needs.

industrial vacuum pumps,vacuum furnaces
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Dry Type Vacuum Pump

Water ring vacuum pump unit

Water ring vacuum pump unit

Water ring vacuum pump unit can be understood as water ring vacuum pump closed cycle system, water ring vacuum pump negative pressure station, roots water ring vacuum unit. This kind of product is called water ring vacuum pump unit in the minds of the majority of users. The following is a brief introduction of the composition and function of each water ring vacuum pump unit:

Water ring vacuum pump closed cycle system: the water ring vacuum pump closed cycle system is generally composed of water ring vacuum pump, steam water separator, heat exchanger, one-way valve, water supply solenoid valve, ball valve, pipeline, electric contact vacuum gauge, control cabinet, frame, etc. its main function is to make the working fluid in the water ring vacuum pump recycled, generally in the chemical industry and water resources comparison The water ring vacuum pump unit can be used by the deficient enterprises, so as to greatly reduce the sustainable utilization of water resources or chemical working fluid, thus reducing the cost of enterprises.

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water ring vacuum pump routine maintenance

water ring vacuum pump routine maintenance

The service life of the water ring vacuum pump is not only related to the quality of the pump itself, but also to its daily management. Therefore, it is necessary to manage and maintain the water ring pump regularly. So, what is the daily management of water ring vacuum pump?

1. Regular cleaning and oil change: kerosene or straight run gasoline shall be used to clean the water ring vacuum pump. After cleaning, all parts shall be dried, dried in the air or blown by a blower. When changing oil, 100 × or 1 × clean vacuum pump oil shall be selected. If other oil is used instead, the vacuum degree of the pump will be seriously affected.

2. Before starting the pump, check whether the rotation direction of the motor is correct, whether the lubrication system is reliable and whether the oil volume is appropriate.

3. During daily operation, ensure that the oil temperature is not more than 75 ℃, and there is not too much noise and vibration, otherwise, shut down for maintenance.

4. The connecting pipeline between the pump and the user system shall be mainly short and thick, and elbows shall be minimized. If there are elbows, all joints shall be strictly sealed to ensure no air leakage.

5. When stopping the pump, first close the valve connecting the vacuum system and open the vent valve to prevent the pump oil from being sucked back into the vacuum system, and then cut off the power supply of the motor.

The long-term and efficient use of water ring vacuum pump is inseparable from our careful management and maintenance. When we use water ring vacuum pump everyday, we should do the above points well, so that the pump can be efficiently used in industrial production.

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water ring vacuum pump structural components

water ring vacuum pump structural components

Water ring vacuum pump structure description: Water ring vacuum pump is composed of pump body, front and rear end cover, impeller, shaft and other parts. And parts and components are mutually complementary, and one less water ring vacuum pump will be paralyzed, so let's take a look at the detailed structure of the water ring vacuum pump:

The intake pipe and the exhaust pipe are connected to the pump cavity through the suction hole and the exhaust hole on the disk mounted on the end cover. The impeller of the water ring vacuum pump is fixed on the shaft with a key and is eccentrically installed in the pump body. The total gap between the two ends of the pump is adjusted by the pad between the pump body and the disc. The gap between the impeller and the front and rear discs is adjusted by the impeller pushing the impeller. The gap at both ends is guaranteed to be uniform. The shaft and the impeller are interference fits, and this clearance is determined when the front end is positioned. The clearance between the two end surfaces of the impeller and the front and rear disks determines the magnitude of the gas loss in the pump cavity from the inlet to the exhaust port and its ultimate pressure.

The water ring vacuum pump packing is installed in the two ends of the cap, and the sealing water enters the packing through the small holes in the end cap, cooling the packing and strengthening the sealing effect. The supplementary water required for the impeller to form a water ring is supplied by the water supply pipe, which can also be connected to the steam-water separator to circulate water. If the mechanical seal is used as the seal type, the mechanical seal is installed in the filling cavity, and no filler is needed. The filler gland is replaced with a mechanical seal gland, and the rest of the structure is the same.

The water ring vacuum pump bearing is fixed on the shaft by a round nut. A disc is installed on the end cover, and the disc is provided with suction and exhaust holes and a rubber ball valve. The function of the rubber ball valve is that when the gas pressure between the impeller blades reaches the exhaust pressure, the gas is discharged before the exhaust port, which feeds the power consumed by the excessive gas pressure and reduces the power consumption.

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Liquid Ring Vacuum Pump

Roots Vacuum Pump

Flow of liquid ring vacuum pump

Flow of liquid ring vacuum pump

In the design of liquid ring vacuum pump, it is very important to determine the circumferential speed of impeller, because the circumferential speed has a great influence on the performance of vacuum pump, which can be said to be global. Other parameters of vacuum pump, such as critical compression ratio, limiting vacuum degree and efficiency, are closely related to circulation speed. Generally speaking, if the circulation speed is too small, the vacuum pump will not reach the predetermined critical compression ratio, and the limit vacuum will also be reduced, resulting in the narrow working range of the vacuum pump and the increase of the shaft power in the high vacuum area;

On the other hand, if the circulation speed is too high, although the critical compression ratio and the limit vacuum degree of the vacuum pump can be increased, the efficiency of the vacuum pump will be reduced and the shaft power will be increased. In addition, due to the influence of vaporization pressure of liquid ring medium, the critical compression ratio will not increase proportionally with the increase of circulation speed. Therefore, the cycle speed should not be too high. How to choose the circulating speed of vacuum pump reasonably, not only has excellent performance, but also has low energy consumption, which is a problem worthy of discussion in the design of liquid ring vacuum pump.

When the impeller rotates and drives the liquid to rotate to form a liquid ring, the liquid ring, as the boundary of the closed cavity, continuously obtains kinetic energy from the impeller in the suction area. At the large eccentric point of the impeller, the circumferential velocity of the impeller reaches a large value. In the compression area, the gas is compressed in the form of "active cooling", and a part of the kinetic energy obtained by the impeller is transferred to the gas when the force increases, so that the gas pressure increases The working process of liquid ring vacuum pump is actually the process of energy conversion in impeller, liquid ring and gas, which conforms to the energy level street law.

Water Ring Vacuum Pump Pipeline Correct Installation Method

Liquid Ring Vacuum Pump

Roots Vacuum Pump

Chemical industry suitable for water ring vacuum pump

Chemical industry suitable for water ring vacuum pump

The only way to solve the cavitation problem of vacuum pump in high vacuum state is to try to improve the use environment of water ring vacuum, the temperature of circulating water, the temperature of suction gas and other external conditions, so as to reduce the cavitation of water ring vacuum pump.

In view of the manufacturing accuracy of water ring vacuum pump, this problem is mainly the understanding and improvement of the design capacity and production and processing accuracy of the water ring vacuum pump manufacturer, which is also a test of the production capacity of the water ring vacuum pump manufacturer.

The single-stage water ring vacuum pump can not meet the production requirements, and the unit cost is too high. The traditional 2SK water ring vacuum pump has many disadvantages. Aiming at various reasons, the multi-stage water ring vacuum pump is designed. Under the high vacuum state, the efficiency is more than 20% higher than the single-stage pump, and the performance is more stable than the 2SK water ring vacuum pump, which is suitable for various chemical industries.

In order to improve the air volume of water ring vacuum pump in high vacuum, reduce the noise caused by cavitation erosion, and reduce the damage of cavitation to the internal parts of vacuum pump, a new type of high-efficiency air ejector is specially designed, which is 30% more efficient than the traditional air ejector, and can be used together with water ring vacuum pump to ensure that the air volume of water ring vacuum pump in high real state reaches 75% of the standard air volume Above.

In the long-term cooperation with customers, the vacuum pump mall has also invested a lot of manpower, material resources and energy to help customers solve "difficult problems". In particular, environmental protection issues, and then the water ring vacuum pump and environmental protection equipment are closely linked. Therefore, the vacuum environmental protection waste liquid treatment system is designed, 100% of which adopts physical environmental protection treatment method to eliminate secondary pollution.

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