Two Rust Removal Methods of Water Ring Vacuum Pump

If the water ring vacuum pump chamber is not in a dry state, in the long run, the pump chamber will rust. At this moment, the time we use may not be able to open, so we have to rust removal. Here we briefly introduce two rust removal methods.
I. Artificial Rust Removal
This method is the most cost-effective and safe. Artificial rust removal, we can rely on what we have on hand to remove rust, our artificial rust removal, do not need to use other chemical products to remove rust, so save some costs. Why is it safe? Because of the water ring vacuum pump chamber, if chemical rust remover is used to remove rust, the pump chamber will be damaged more or less.
Water ring vacuum pump
II. DERUSTING WITH DERUSTING AGENT
This method is very clean but damages the pump chamber.
The above two methods are about the common knowledge of rust removal of water ring vacuum pump. We can refer to them and choose them according to our actual situation. Today's content is introduced here, I hope to help you, want to know more common sense can continue to attach importance to us.
Can rotary vane vacuum pump be customized?

Vacuum pump for alumina industry 

Antiseptic Material for Liquid Ring Vacuum Pump

Water ring vacuum pump is used as working fluid to extract vacuum. It is inevitable to encounter corrosive gases in the industrial production process. Therefore, we attach great importance to the selection of its material. As a professional vacuum pump manufacturer, what materials are used for water ring vacuum pump? Gray cast iron, ductile iron, impeller stainless steel, over-current parts stainless steel, integral stainless steel.
Among them, the phenolic glass fiber corrosion-resistant water ring vacuum pump produced by phenolic glass fiber reinforced plastic hot pressing is a new type of corrosion-resistant water ring vacuum pump, which has better corrosion-resistant effect than ordinary water ring vacuum pump, and is not easy to cause pump shaft torsion, less maintenance and remarkable power saving effect. This kind of vacuum equipment is worth popularizing widely. Therefore, the phenolic glass fiber corrosion resistant water ring vacuum pump can be selected.
Because of the focus on research and development and innovation of water-ring vacuum pump, the problem of anti-corrosion has been solved. Many people choose water-ring vacuum pump, which is the introduction of phenolic glass fiber corrosion-resistant water-ring vacuum pump. It has also reached a certain sales volume. Enterprises from all walks of life are welcome to consult and order! To know more about our products and prices, send e-mail to contact@evpvacuum.com.
New Rotary Vane Vacuum Pumps

Small Vacuum Pump Manufacturers Suppliers 

Selection Basis of Vacuum Pump for Vacuum Equipment

The two rotors of the vacuum pump operate relatively synchronously through a pair of high precision gears. The drive shaft is connected with the motor through a coupling. There are mainly two kinds of transmission structure arrangement: one is that the motor and the gear are placed on the same side of the rotor. The driven rotor is driven directly by the end gear of the motor, so that the torsional deformation of the active rotor shaft is small, and the clearance between the two rotors will not change because of the torsional deformation of the active shaft, so that the clearance between the rotors is uniform in the course of operation. When the use of a pump can not meet the requirements of pumping and vacuum, several pumps need to be combined to complement each other in order to meet the technological requirements. Some vacuum pumps can not work at atmospheric pressure and need pre-vacuum. Some vacuum pumps need pre-pump because their outlet pressure is lower than atmospheric pressure. The combined vacuum pump, which we call the vacuum pump unit, can make the vacuum system get better vacuum degree and exhaust volume. We should correctly select the combination of vacuum pumps, because different vacuum pumps have different requirements for the gas extracted, such as: in general, Roots-Rotary Unit is not suitable for systems containing more condensable gases. When you choose an oil seal pump, you should first know whether your vacuum system requires oil contamination. If the equipment is strictly oil-free, all kinds of oil-free pumps should be selected, such as water ring pumps, cryogenic pumps, etc. If the requirements are not strict, you can choose to have oil pumps, plus some anti-oil pollution measures, such as adding cold traps, oil traps, baffles, etc., can also meet the requirements of clean vacuum. Understand the composition of the extracted gas, the gas contains no condensable vapor, dust particles, corrosion and so on. When choosing a vacuum pump, it is necessary to know the gas composition and select the appropriate pump for the pumped gas. If the gas contains steam, particles, and corrosive gas, it should be considered to install auxiliary equipment such as condenser, dust collector in the intake pipeline of the pump. When choosing oil seal vacuum pump, the influence of oil vapor (oil fume) discharged from vacuum pump on environment should be considered. If the environment is not allowed to be polluted, oil-free vacuum pumps should be selected, or oil vapor should be discharged outdoors. Whether the vibration caused by the vacuum pump when working has an impact on the process and environment, if the process is not allowed, the vibration-free pump should be selected or anti-vibration measures should be taken.
vacuum pump manufacturer in delhi

vacuum pump industry 

Improvement of Vacuum Pump

There are many deformations of vacuum pumps. Many single rotary vane vacuum pumps can be combined to form multi-chamber rotary vane vacuum pumps. Combining rotary vane vacuum pumps with other pumps can form combined pumps or pump sets (such as mechanical pump-diffusion pump pumping units). Side eccentric pump is to improve the structure of rotary vane vacuum pump, thereby improving the performance of the original design. It can also be used in multiple simultaneous exhaust devices. Its application range is the same as other rotary vane vacuum pumps.
I. Multi-chamber Rotary Vacuum Vegetables
In general, circular exhaust trucks are often used for the exhaust of vacuum devices such as electronic tubes. Ten-chamber pumps, i.e. multi-chamber rotary vane vacuum pumps, are commonly used for mechanical pumps to carry out multi-position independent exhaust.
1. Working principle of multi-chamber rotary vane vacuum pump
The working principle of multi-chamber rotary vane vacuum pump is the same as that of single-stage or double-stage rotary vane vacuum pump. The difference is that it is equipped with several independent studios (single-stage rotary vane vacuum pump) driven by the same motor in a common base. Each independent studio can directly pump a container without interference during the whole process of pumping. So it is called multi-chamber rotary vane vacuum pump.
2. Construction of multi-chamber rotary vane vacuum pump
It consists of two main parts: the box body and the independent studios immersed in the box body. These independent studios are single-stage rotary vane vacuum pumps, which are composed of pump body (chamber), rotor, rotary vane, spring, filter (net), exhaust valve and other major components. These independent studios are connected in series into pump groups, and are fastened to the seat of the box body with screws.
2. Side eccentric rotary vane vacuum pump
The side eccentric pump in rotary vane vacuum pump has been mentioned in many places before, because it is a new rotary vane vacuum pump designed and manufactured by Nanguang Machinery Factory. Its advantages lie in its relatively high comprehensive technical indicators, in some aspects, such as specific power, specific weight, fuel injection, fuel consumption, etc.
We have passed similar products and surpassed those of some capitalist countries.
3. Improvement trend of rotary vane vacuum pump
Rotary vane vacuum pump has many advantages over other types of mechanical pumps, but it has many disadvantages, especially far from the requirements of production practice. For example, in corrosion resistance, wear resistance, small size, light weight, low noise, small vibration, automatic prevention of oil reflux, removal of oil vapor reflux and so on, efforts are needed. In order to adapt to the development of the instrument, the small rotary vane vacuum pump which needs less than 18 liters/seconds has been developed into a miniaturized instrument.
Old-style mechanical pumps, when pumping, with the increase of vacuum, pumping speed has decreased a lot. In recent years, due to the reduction of oil vapor reflux and the adoption of some new technologies (such as the use of three-rotor structure in rotary vane vacuum pump), the pumping speed curve (horizontal line) of the pump almost extends to 1 x10-3 torr.
In the research of clean vacuum, in order to avoid the reflux of oil vapor, it was proposed that the high vacuum seal of rotary vane vacuum pump should be made of solid lubricant (dry stage) and the general oil-sealed rotary vane vacuum pump should be used as the two-stage pump.
Of course, the more thorough solution to the oil vapor reflux or try to develop oil-free mechanical vacuum pump. It has been studied for many years at home and abroad, and many types have been developed. However, pumps that can start pumping from the atmosphere and can work continuously and have similar performance to existing oil seal mechanical pumps are still under development, and there are no formal products. It is believed that with the progress of vacuum technology, rotary vane vacuum pumps with good performance and adaptability to various operating requirements will appear.
Vacuum pump manufacturer in india

Cast Iron Vacuum Pump 

Application of water ring vacuum pump in plasma cleaning

The working principle of vacuum plasma cleaning machine
Plasma is a substance produced by gas molecules under special conditions such as vacuum and discharge. Plasma cleaning/etching to produce plasma device is set in an airtight container two electrodes form the electromagnetic field, using vacuum pump to achieve a certain degree of vacuum, with gas is more and more thin, the distance between molecules and the free movement of distance between molecules or ions is getting longer and longer, the magnetic field effect, collision and plasma formation, glow will happen at the same time. The plasma moves in the electromagnetic field and bombards the surface of the treated object to achieve the effect of surface treatment, cleaning and etching.
Application of water ring vacuum pump in plasma cleaning
Vacuum plasma cleaning machine is widely used
Greatly improve the wettability of the surface, the formation of active surface
Dust and grease removal, fine cleaning and electrostatic removal
Provides a functional surface by surface coating treatment
Improve surface adhesion
Improve reliability and durability of surface adhesion
Technical advantages of vacuum plasma cleaning machine
Environmental protection: plasma interaction process is solid coherent type reaction, no water consumption, no need to add chemical agents.
Adaptability: can be treated regardless of the substrate type, such as metal, semiconductor, oxide and most polymer materials.
Low temperature: close to normal temperature, especially suitable for polymer materials, compared with corona and flame method has a longer storage time and higher surface tension.
Strong function: it only involves the shallow surface of the material (100-1000a), which can endow one or more new functions while maintaining the characteristics of the material itself.
Low cost: simple device, easy operation and maintenance, continuous operation, cleaning cost is much lower than wet cleaning.
Process is controllable: all parameters can be set by computer and recorded by data for quality control.
Vacuum pump advantage
SPECK imported from Germany, the quality is more reliable
Super strong ability to expel water vapor.
High pumping speed can be maintained under strong low pressure.
Low noise, low vibration.
Compact structure, small size, space saving.
Vacuum pumps

Vacuum Pump: Final Buyer's Guide [New Products 2019] 

What are the influencing factors for the function of vacuum pump

As far as the factors affecting the function of vacuum pumps are concerned, we mainly have the influence of condensate, steam and environment, and also an influence on the layout of the pump body. As for the factors affecting the function of vacuum pumps, the main ones are those mentioned above. Let's briefly introduce them.
First of all, condensate water plays an important role in multi-stage vacuum pumps. For condensate water, it can condense the steam sufficiently. For a partial pressure of water vapor in the discharge pressure of vacuum pump, it is necessary to be higher than the corresponding full vapor pressure, so the temperature of condensate water is also required. It is lower than the full temperature under our pressure, so that the pump body can be guaranteed to perform a normal operation.
Our commonly used vacuum pump, in fact, is the steam eruption vacuum pump. In this way, if we are too full of water vapor, it is in fact based on the operation of the medium, for the condition of the steam itself, for the function of the pump is also a more decisive impact. For wet steam, it also has an impact on the function of the pump.
Moreover, when it comes to the influence of environment on the function of vacuum pump, it mainly refers to the exhausted gas, which pollutes the system. In the process of disposal of molten steel, for molten steel itself, it will also emit a lot of gas, and at the same time, it will also have a part of fine oxide powder and many other small particles. Sucked into the vacuum pump.
For single-stage vacuum pump, its simple wear-out part, in fact, is the steam nozzle, for the nozzle wear-out, it will only affect the function of our pump, in this case, to increase the operating cost of the system is also possible. Finally, we should pay attention to the factors that affect the function of vacuum pumps.
Liquid ring vacuum pump made of titanium

Vacuum pump for healthcare 

Reasons and Treatment of Oil Return from Vacuum Pump

Vacuum pump is a kind of oil-sealed vacuum equipment, but in the long-term use process there will be oil return, specifically refers to the oil vapor is affected by temperature and attached to the original chip, which will not only cause waste of resources, but also cause heat is not easy to emit, equipment temperature rise too fast, and so on.
In order to prevent the vacuum pump oil from returning to the pumped container when the pump stops, the built-in anti-return device is very important. When using vacuum pump, many users will encounter the problem of oil return in vacuum pipeline or system. Today, Xiaobian will introduce the reasons and treatment methods of vacuum pump oil return.
1. Reasons for oil return: oil vapor reflux to vacuum pipeline or system; oil vapor pressure is not right; oil reflux when pump stops; seal damage on shutoff valve plate; corrosion or damage of bottom seal of pumping pipeline.
2. Specific treatment methods: after cleaning the pump, change the oil that meets the requirements; after cleaning the pump, change the oil that meets the requirements; check and replace the shutoff valve; replace the shutoff valve plate; replace the exhaust pipeline, repair the seals.
Avoiding oil return during the use of vacuum pumps can improve the safety, stability and efficiency of equipment operation, bring better benefits to enterprises, and also avoid the burning of lines caused by excessive temperature, or even fire.
vaccum pump for extruder machine

Liquid Ring Vacuum Pumps for Extruder Venting 

industrial Blowers

industrial Blowers

How it Works Vacuum Pump

Key Points for Correct Use and Maintenance of Vacuum Pumps

1. Check the position of oil level regularly, and adjust it to meet the requirements when it does not meet the requirements. When the vacuum pump is running, the oil level should be in the center of the oil mark.
2. Check the oil quality regularly and find that the oil is deteriorated. Replace the new oil in time to ensure the normal operation of the vacuum pump.
3. The time limit of oil exchange shall be decided by the user at his discretion according to the actual conditions of use and whether the performance requirements can be met or not. In general, when pumping clean and dry gas, it is recommended to change the vacuum pump oil once in about 100 hours. When the black metal powder can not be seen in the oil, the oil exchange period can be extended appropriately in the future.
4. In general, the vacuum pump should be repaired after 2000 hours of operation to check the aging degree of rubber seals, check whether the exhaust valve disc is cracked, and clean up the dirt deposited on the valve disc and the exhaust valve seat. Clean the parts in the whole vacuum pump chamber, such as rotor, rotor, spring, etc. It is usually washed and dried with gasoline. Rubber parts can be cleaned and dried with a dry cloth. When cleaning and assembling, it should be gently handled and carefully bruised.
5. Conditionally clean up the pipes to ensure the smooth flow of the pipes.
6. After reassembly, it should be put into trial operation. Generally, it should run empty for 2 hours and change oil twice. Because there will be a certain amount of volatile substances in the vacuum pump when cleaning, and then put into normal work after normal operation.
7. Check the loosening of vacuum pump pipeline and joint. Turn the vacuum pump by hand to see if it is flexible.
8. Add bearing lubricating oil to the bearing body. Observe the oil level at the center line of the oil mark. The lubricating oil should be replaced or supplemented in time.
9. Turn down the diversion bolt of the vacuum pump body and pour the diversion water (or slurry).
10. Close the gate valves and outlet pressure gauges of the outlet water pipeline and the imported vacuum gauges.
11. Point the motor to see if the motor steering is correct.
12. Turn on the motor. When the vacuum pump is in normal operation, open the outlet pressure gauge and the import vacuum pump. After it shows the appropriate pressure, gradually open the gate valve and check the load of the motor.
13. Controlling the flow rate and head of the circulating water vacuum pump as far as possible within the range indicated on the label to ensure that the vacuum pump runs at the **** efficiency point can achieve the **** energy-saving effect.
14. During the operation of the vacuum pump, the bearing temperature should not exceed the ambient temperature of 35, and the **** temperature should not exceed 80.
15. If abnormal sound of vacuum pump is found, stop immediately to check the cause.
16. To stop the use of vacuum pump, first close the gate valve and pressure gauge, and then stop the motor.
17. The vacuum pump replaces the lubricating oil after 100 hours during the working ** months, and then every 500 hours.
18. Regularly adjust the packing cap to ensure that the drip leakage in the packing room is normal (drip leakage is appropriate).
19. Check the wear condition of the sleeve regularly, and replace it in time after the wear is serious.
20. When the vacuum pump is used in the cold winter season, after stopping, it is necessary to unscrew the screw plug at the lower part of the pump body to remove the medium. Prevent frost cracking.
21. When the vacuum pump is out of service for a long time, it is necessary to dismantle all the pumps, dry the water, and coat the rotating parts and joints with grease for proper storage.
Vacuum pump for bottle blow moulding

Vacuum pump for vacuum sucker 

What is the purpose of steam vacuum pump?

What should be considered when selecting and purchasing water ring vacuum pumps

Everyone must be familiar with the water ring vacuum pump. It plays an important role in our production and life. As the core of a production project, it is also the basis for production. Its efficient use plays a vital role. Before use, it must be faced with a matter of choosing and purchasing. If we can not choose the appropriate equipment, it will be a kind of injury to the equipment itself. Harm is not conducive to the production, and even the possibility of unexpected events, so the following edition tells you what aspects should be considered when choosing and purchasing:
1. First of all, we should be clear about the layout of the device, topography, water level conditions, operation, comparison of economic schemes and other aspects of the actual situation.
2. Consider the type, horizontal, vertical or other type of water ring vacuum pump.
3. According to the nature of liquid medium, the clear water pump, the hot water pump, the oil return pump, the chemical pump or the corrosion-resistant pump or the impurity pump are determined, or the non-blocking pump is adopted. If the pump is installed in the explosion area, the explosion-proof motor should be used according to the explosion area grade.
4. Considering the vibration, it can be divided into pneumatic and electric (electric divided into 220V voltage and 380V voltage).
5. Considering the flow rate, choose single suction pump or double suction pump.
6. According to the height of lift, single suction pump or multi-suction pump, high-speed pump or low-speed pump (air conditioning pump), multi-stage pump efficiency is lower than single-stage pump. When single-stage pump and multi-stage pump can be used equally, single-stage pump should be selected.
7. Considering the specific type of the pump, after choosing which series of pumps to use, the specific type can be determined on the profile or series characteristic curve according to the maximum flow rate and the head after enlarging the allowance of 5% to 10%.
Through the full understanding of the equipment operation site, we know the size and nature of the parameters required by the equipment, and then choose the appropriate equipment model according to these, the flow size, head height and so on must be consistent. Above is about the water ring vacuum pump selection to consider aspects, I hope to help you.
Vacuum Pump Made in China

Rotary piston vacuum pump manufacturers 

Vacuum pump manufacturer's recommendation

Vacuum pump introduction:
Vacuum pump is a rotary variable volume gas transfer pump. The vacuum pump must be used in conjunction with the front pump for greater pumping speed over a wider pressure range. It is insensitive to dust and water vapor in the extracted gas. Widely used in metallurgy, chemical, food, electronic coatings and other industries.
Development of vacuum pump:
Vacuum pumps include dry screw vacuum pump, water ring pump, reciprocating pump, slide valve pump, rotary vane pump, roots pump and diffusion pump. These pumps are indispensable main pumps in the application of vacuum technology in all walks of life of our national economy. In recent years, with the continuous and rapid development of China's economy, the downstream application industry of vacuum pump has maintained the momentum of rapid growth. At the same time, due to the continuous expansion of vacuum pump applications and other factors, China's vacuum pump industry has achieved sustained and stable development.
According to the data of "China vacuum pump manufacturing in-depth survey and 2013-2017 investment forecast analysis report", it is an indisputable fact that foreign enterprises enter the Chinese vacuum pump market. Japanese vacuum cleaners are spread all over the country, German rebo is expanding in China, American thysser group, south Korean yousei and other internationally renowned manufacturers are also looking for partners to build and manufacture in China. The foundation. They have a huge appetite and are supplying whale vacuum pumps on the market. In recent years, although some domestic enterprises gradually rise and occupy the leading position in the vacuum pump market, most of them have poor research and development ability. Compared with foreign counterparts, high-end products are still at a technological disadvantage.
Vacuum pump for plastic industry

Vacuum pump for degassing 

Energy-saving Skills in the Use of Vacuum Pumps

When we use vacuum pumps, we all hope to use energy-saving good, tell you, in fact, energy-saving vacuum pumps have some skills:
1. Improving transmission efficiency
Direct transmission of coupling instead of flat belt can improve transmission efficiency.
2. Preventing the Intake of Vacuum Pump
Vacuum pump into the air, water output will be significantly reduced, should be checked and maintained at all sealing parts.
3. Increasing Energy Consumption
Eliminate the "anti-aircraft gun" type outlet pipe. This kind of outlet pipe will increase energy consumption.
4. Inclined loading to reduce elbows
The vacuum pump is inclined or the volute is turned so that the outlet is in the pool.
5. Shortening Pipeline
Remove 1 meter steel pipe, 10 hours can save 0, 21 kilograms of diesel oil.
6. Expanding Outlet Water Diameter
Replacing 4-meter-long 10-centimeter effluent hose with 15-centimeter hose can save 0,5 kilograms of diesel oil in 10 hours.
7. Remove the filter
The filter can be removed when the inlet water can be kept clean.
8. Changing ring, adjusting axial clearance
To prevent inappropriate impeller opening ring and axial clearance, the use should be adjusted according to the manufacturer's instructions of the vacuum pump.
9. Eliminate pipe blockage in time
If foreign bodies are left in the inlet pipe, impeller or guide shell channel, the water output will be reduced.
Vacuum pump for steam sterilization

Liquid Ring Vacuum Pump for Vacuum Pressing 

Ultimate pressure of rotary vane vacuum pump

Rotary vane type oil seal mechanical pump (referred to as rotary vane pump) is a variable-capacity gas transfer vacuum pump, which is one of the most fundamental vacuum equipment in vacuum technology. Its working pressure scale is 101325~1.33 10-2pa, is a low vacuum pump. It can be used alone or as a front stage pump for other high vacuum pumps to remove dry gas from sealed containers. It is widely used in metallurgy, machinery, electronics, chemical industry, light industry, petroleum and medicine, etc. But rotary vane pump is not suitable for the removal of oxygen content is too high, explosive, corrosive to metals, and pump oil will have a chemical reaction, rich in dust particles of gas.
Rotary vane vacuum pump for small and medium-sized pumps, there are single and double - stage two. Usually multi - stage pump, can achieve higher vacuum.
With the increase of the number of the application of rotary vane and the expansion of the application field, it is more urgent to reduce the volume of the pump, reduce the weight of the pump, reduce the power consumption, reduce the noise of the pump, avoid the oil injection of the pump, and improve the speed of the pump is an important way to improve the pump function. High speed direct pump has gradually developed from small to medium pump. In foreign countries, the use of direct pump is quite widespread, China with the rotary vane data and pump oil quality progress, the continuous improvement of pump structure, medium direct pump research and development and application will be carried out quickly.
Pump start work soon, the lowest pressure P'g. The pump continues to work. Due to the increase of pump temperature, the full steam pressure of the pump oil rises and the viscosity drops. The inlet pressure rises slightly to Pg. Pg is the stable minimum pressure obtained by the pump, and also the ultimate pressure of the pump.
The ultimate pressure of rotary vane vacuum pump is related to the type of vacuum gauge used in measurement. The ultimate pressure measured by a compact vacuum gauge is about an order of magnitude lower than that measured by a heat conduction vacuum gauge (thermocouple gauge or picometer, etc.). This is because the former can only measure the partial pressure of a persistent gas, while the latter measures the total pressure of the pressed gas. The current rules in China use the compact vacuum gauge to measure the extreme pressure of oil seal mechanical pump. With the increase of the oil, the better the sealing effect, the pump limit pressure and oil contact changes, eventually reached the oil full vapor pressure Po. In fact, the pump oil is rich in a lot of air and water, pump oil into the pump chamber, the absorption of air and water in the pump oil released, the pump limit pressure and oil amount of contact upward. Usually pump oil should adhere to the specified oil level, so that the pump must adhere to the amount of circulating oil. As for the two-stage pump, the pump oil can only enter the high vacuum stage after degassing in the low vacuum stage, so that the pump oil's air release in the high vacuum stage can be reduced to reduce the ultimate pressure of the pump.
The ultimate pressure of vacuum pump is related to the working temperature of pump oil. The higher the oil temperature, the higher the full oil vapor pressure, the higher the ultimate pressure of the pump.
Rotary vane pump supplier
Manufacturer of Industrial Rotary Vacuum Pump

Vacuum pump system

Advantages of vacuum system:
1. When vacuum source is needed, the desired vacuum degree can be achieved in a very short time.
2. The vacuum source is more stable and sufficient.
3. One system can be used for multiple workstations at the same time without affecting the operation between different units.
4. When the vacuum source stored in the pressure vessel is sufficient, the vacuum pump can stop working/take turns to stop working, so as to extend the rest time of the pump, reduce the loss of pump, parts and oil, reduce the cost of operation and maintenance, and reduce the noise in the workplace.
5. Easy to operate and master.
Vacuum pump system product parameters:
Model no. : PNK630 (2 x RH0630)
Pumping speed: 1260 m3 / h
Ultimate pressure: 0.5 (15) mbar
Buffer tank: 60L
Motor power: 0.75kw
Size: 800 * 320 * 900 mm
Dimension and quantity of vacuum extraction interface: 12 6
Vacuum pump system industry application:
Vacuum system for refrigeration industry
Vacuum system for plastics industry
Special vacuum system for vacuum coating
CNC hardware processing vacuum suction vacuum system
Optical lens adsorption cutting vacuum system
Screw vacuum system
Oil free rotary vane vacuum system
Oil lubricated vane vacuum system
Laboratory vacuum system
Miniature vacuum system
Vacuum Pump Manufacturers Suppliers

Liquid Ring Vacuum Pump Supplier 

Proper use and maintenance of vacuum pump

1. Check the oil level position frequently, and adjust it to meet the requirements if it does not meet the requirements. When the vacuum pump is running, the oil level shall be subject to the oil mark center.
2, often check the oil quality, found that the oil deterioration should be timely replacement of new oil, to ensure the normal operation of the vacuum pump.
3. The term of oil change shall be determined by the user at his discretion based on the actual conditions of use and whether the performance requirements can be met. General new vacuum pump, remove clean and dry gas, it is recommended to change the vacuum pump oil for about 100 hours. After the black metal powder is not seen in the oil, the oil change period can be appropriately extended.
4. In general, the vacuum pump shall be overhauled after working for 2000 hours to check the aging degree of rubber seals, check whether the exhaust valve disc is cracked, and clean up the dirt precipitated on the valve disc and exhaust valve seat. Clean the whole vacuum pump chamber parts, such as rotor, rotor, spring, etc. It is usually cleaned with gasoline and dried. Clean the rubber parts and dry with a dry cloth. Handle with care when cleaning and assembling.
5. If possible, clean the pipes to ensure smooth operation.
6. Test operation shall be carried out after reassembly. Generally, it shall run empty for 2 hours and change oil twice.
7. Check whether the vacuum pump pipeline and joint are loose. Turn the vacuum pump by hand to see if it is flexible.
8. Add bearing lubricating oil into the bearing body. Observe the oil level at the center line of the oil mark.
9. Unscrew the water introduction screw plug of the vacuum pump body and pour water introduction (or slurry introduction).
10. Close gate valve of outlet pipeline, outlet pressure gauge and inlet vacuum gauge.
11. Start the motor and check whether the motor steering is correct.
12, start the motor, when the vacuum pump normal operation, open the outlet pressure gauge and the import vacuum pump, as it shows the appropriate pressure, gradually open the gate valve, while checking the motor load.
13, as far as possible to control the circulating water vacuum pump flow and lift within the scope indicated on the label, in order to ensure that the vacuum pump in ****** efficiency point of operation, in order to obtain ****** energy saving effect.
14, vacuum pump in the process of operation, the bearing temperature cannot exceed ambient temperature 35 ℃, * * * * * * temperature shall not exceed 80 ℃.
15. If any abnormal sound is found in the vacuum pump, stop it immediately to check the reason.
16, the vacuum pump to stop using, first close the gate valve, pressure gauge, and then stop the motor.
17, the vacuum pump in the work of ****** months, after 100 hours to change the lubricating oil, after 500 hours, change the oil once.
18, often adjust the packing gland, to ensure that the packing chamber of the drip is normal (into the drip is appropriate).
19. Check the wear of the shaft sleeve regularly, and replace it in time after the wear is large.
20. When the vacuum pump is used in the cold winter, after parking, it is necessary to unscrew the water discharge screw plug at the lower part of the pump body to release the medium. Prevent frost crack.
21. If the vacuum pump is out of service for a long time, it is necessary to disassemble the pump completely, dry the water, coat the rotating part and the joint with grease, and keep it properly.
Liquid Ring Pump
Vacuum Pump For Vacuum Vulcanization
Liquid Ring Vacuum Pump

Rotary Vane Vacuum Pump

Vacuum pump development direction

(1) use feasible design and high-function seals to improve the uniform and no-end barrier operation period (MTBF) of the whole machine.
The working reliability of water ring vacuum pump and water ring compressor, that is, the operation period of uniform endless barrier, should be said that compared with other coarse and low vacuum equipment is still relatively high, the operation period of uniform endless barrier can reach more than 10000 hours. However, with the improvement of technology in various industries and the improvement of reliability requirements for the whole vacuum system, the reliability requirements for the vacuum system are correspondingly higher. Especially in the chemical and coal mine gas extraction conditions such as strict safety requirements, the pump to long-term continuous operation, the international level of improvement can reach tens of thousands of hours. Therefore, the design of water ring vacuum pump and water ring compressor development and manufacturing constraints and the quality of seals (especially mechanical seals), to really improve the reliability of the machine is still need to further strengthen the work of the above aspects.
(2) adopt the optimization design method to improve the efficiency of the pump and reduce energy consumption
Water ring vacuum pump and water ring compressor are products with high energy consumption and low efficiency, which is generally acknowledged. The small pump is generally 30-35%, while the large pump is 40% or slightly higher. Such low efficiency is not suitable for the national requirements on mechanical and electrical products and the current situation of energy shortage in China. So should be as soon as possible, the optimization design method was adopted to affect the efficiency of pump is the hub of the impeller geometric parameters and the original position of the suction vent, area set up mathematical model of optimization design, choose the optimal combination parameter of each scheme, and using the theory of gas-liquid two phase flow and the calculation formula for design, try to reduce the eddy current loss water ring, achieve the goal of progress efficiency. Therefore, it is an important task to design and develop water ring vacuum pump and compressor with high efficiency and energy saving as soon as possible so as to eliminate backward products with high energy consumption and low efficiency.
(3) air volume at the working point of the progressive zone air ejector.
Whether the single-stage water ring vacuum pump is still two-stage water ring vacuum pump with air ejector abroad to improve the amount of air extraction under lower suction pressure is still more. Technology from abroad to improve predecessors of the enterprise on the technical data of it can be seen that single stage water ring vacuum pump with primary air injector, the suction pressure of 5 kPa, extraction rate can be up to the pump without the atmospheric jet suction pressure 400 hpa point extraction rate of the commonly used single stage water ring vacuum pump (user common condition point) of 65-70%, two stage water ring vacuum pump with primary air injector, the suction pressure of 1.5 kPa point extraction rate can be up to the pump without air ejector suction pressure is 8 kPa point extraction rate (two stage water ring vacuum pump commonly used point) of 70-75%, In this way, the application scope of the water ring vacuum pump is greatly expanded, which satisfies the technical precondition of the large extraction rate at the suction pressure of 1.5-5kpa required in chemical industry, pharmaceutical industry, light industry, instrument, metallurgy, power generation and other industries. But at present the application of water ring vacuum pump with air ejector is not wide enough. Second, the extraction rate at the point of 1.5-5kpa is small, which has a certain gap with the technical level of foreign advanced manufacturers. For further popularization and application, should study to improve the atmosphere of injector design and the optimal formula of water ring vacuum pump, because the air in the atmosphere of injector nozzle (laval nozzle) and reducing period of activity of the diffuser is supersonic airflow, and the two strands of the airflow mixed with is pumped gases in the atmosphere in the process of momentum exchange is more complicated, can not rely solely on the theoretical calculation method for design, required test for many times, but from the expansion of the application and progress of water ring vacuum pump, experimental study on the perspective of its efficiency should strengthen efforts to advance the efficiency of extraction.
stainless steel liquid ring vacuum pump

stainless steel vacuum pump