Regular maintenance of vacuum pump unit

With the rapid development of the national economy, enterprises and units put forward higher and higher requirements for the safe and reliable operation of vacuum pump units. In order to achieve this requirement, we must do a good job in the regular preventive maintenance of vacuum pump unit. 

1. According to the scheduled time interval to the site for machine repair.

2. Repair or replace the equipment before major failure occurs. If properly arranged, the maintenance cost of this scheme will be less than that of post accident maintenance.

3. When the vacuum pump unit does not need to work continuously, it is obvious that the technical personnel with rich maintenance experience can carry out regular preventive maintenance.

4. Otherwise, it will cause unnecessary maintenance. There will also be a series of problems, such as the complete machine being disassembled, repeated secondary installation leading to the decline of installation accuracy and so on.

Regular preventive maintenance of vacuum pump unit is the key to its work efficiency. It can make the vacuum pump unit in a stable working state for a long time, reduce energy consumption and prolong its service life.

Water Ring Vacuum Pump

Dry Scroll Vacuum Pump

industrial vacuum pumps,vacuum furnaces

Maintenance of fixed plate mechanical vacuum pump

The structure of fixed plate mechanical vacuum pump is all combined, similar to small five pieces. The exhaust valve is of the bullet type. If it is used for a long time, the bullet will also fly off, resulting in the failure of no air extraction; some pumps have manufacturing problems, the vent hole is too oblique, the bullet can not return to its original position after being lifted by the air flow, and the valve port can not be blocked, so the vacuum degree is not high. When repairing, the air outlet can be reamed into the inlay sleeve to correct the air outlet, so as to overcome the above problems. 

After several years of service, the vacuum degree of the fixed plate vacuum pump becomes worse due to wear and tear. At this time, the pieces can be disassembled and grinded against each other. After being cleaned, they can be assembled. At this time, if the tolerance between the rotor and the end face is too small, some end faces can be ground and installed again. The stator is tightened by the spring to keep it close to the rotor forever to prevent the reverse "breakthrough" of gas. Therefore, the spring has a large expansion frequency and is easy to break. If one of the two springs is broken, the pulsating sound of the exhaust valve is paroxysmal, and the fuel tank cap can be disassembled for inspection.

In winter, the viscosity of the oil sometimes becomes very large, after stopping the pump, the air is not put into the pump cavity in time, causing the oil to fill the pump cavity. When the pump is started suddenly, the oil in the cavity is difficult to be squeezed out at once. The stator is often squeezed out of the stator groove or the rotor is broken (or even the rotor is cracked), so it is impossible to pump air. When repairing, only the fixed piece is out of the way. The end of the fixed piece can be gently knocked with a wooden strip to make it return to its original position, and the belt pulley is turned on manually. After the pump oil in the cavity is discharged, the pump can be started for air extraction. If the rotor is damaged, it should be replaced with a new one. Therefore, the fixed vane pump start and normal use must comply with certain regulations, should also stipulate the oil change system on schedule.

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Power supply mode of water ring vacuum pump

The working progress of water ring vacuum pump has a certain relationship with its power supply mode, so we need to know its power supply mode. It doesn't matter how much you know about its power supply mode. But the following describes its power supply mode.

1. Water ring vacuum pump because the medium extracted is "water or liquid", the specific gravity is large; while the working medium of micro vacuum pump and micro air pump is "gas", the specific gravity is relatively light; therefore, the working current of vacuum pump is generally larger than the latter, about 1 ~ 10 amperes, while the working current of the latter is generally small, ranging from hundreds of Ma to several amperes.

2, battery is the general term of battery, because principle and dry battery, can provide larger current and power, widely used in electric vehicles, cars and other mobile vehicles, agricultural spraying spray, field sampling and other occasions where there is no power supply.

3. The commonly used dry batteries (such as 1, 5V batteries) have large internal resistance, and the current provided by them is small, and a large part of the voltage is consumed on the internal resistance. Therefore, the voltage drops rapidly. Considering the power and service time, it is suitable for the water supply ring vacuum pump.

CL Sereis Cone Liquid Ring Vacuum Pump

Roots Blowers

Roots Vacuum Pump 

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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Solution to water inflow in buffer tank of imported vacuum pump

Some customers are worried about the problem of water entering into the buffer tank of vacuum pump when using the vacuum pump. The following is how to deal with the water entering into the buffer tank of vacuum pump.

1. First of all, find out the reason why the buffer tank of the imported vacuum pump enters the water: generally, when using the vacuum, the valve opening is large and the vacuum degree is high, resulting in the water (or a large amount of steam) being pumped into the buffer tank, and then the water enters;

2. The solution is: open the outlet valve at the bottom of the buffer tank of the imported vacuum pump to drain water. In general, a small part of water should be left in the buffer tank to test the sealing of the bottom of the buffer tank. Haokaide vacuum pump mainly uses water to seal to ensure the source of water. There is no problem with the vacuum degree and the water quality must be good. Otherwise, the pump body will be scaling, and the impellers of suction and exhaust channels will be smaller and smaller, which will affect the vacuum degree. It will be OK to do these points well.

CL Sereis Cone Liquid Ring Vacuum Pump

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Cleaning method of water ring vacuum pump cavity

The cleaning problem of water ring vacuum pump is an important aspect of water ring pump maintenance, because the water ring vacuum pump is used for a long time, it is inevitable to enter some dirty things in the pump cavity. With the increase of time, these dirt cover the inside of the pump cavity, which has a great adverse impact on the performance of the pump!

If you want to make the water ring vacuum pump use for a long time and keep its performance stable, the daily maintenance work is inevitable. Only by doing a good job of cleaning it can it work for us normally. The machine also needs to be taken care of, not only for the appearance of cleaning, but also for keeping the interior clean. Speaking of this, some may think that it is not enough to flush with water, in fact, only use it This method is not enough, because there may be scale or other substances in the vacuum pump which has been running for a long time. It is far from enough to use water only to clean the pump once.

How to clean the water ring vacuum pump correctly? Today I will teach you a simple and easy to learn method. Dilute nitric acid or other soluble substances, but do not use high purity ones, which will directly damage the internal components of the vacuum pump. Place it in the container for about an hour, and then wash it with water directly. If there is pressure, the effect will be achieved Will be better, such a cleaning step is not very simple, only regular maintenance of the pump, in order to extend its life.

Of course, cleaning the water ring vacuum pump is only one aspect. In daily maintenance, there are many components that need to be maintained by the user. For example, which part is seriously worn must be replaced, or it will directly affect the operation of the vacuum pump. If there is a problem in the pipeline, find out the cause of the leakage and repair it in time. All these works should be checked every day during the use As long as every detail is important, there will be big problems with the vacuum pump.

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Development of rotary vane vacuum pump

Because of its unique working principle and irreplaceable functional characteristics, vacuum pump has a very wide range of applications in the field of engineering industry. In the fields of precision electronics, engineering machinery, chemical agriculture and other industries, different types and specifications of vacuum pumps play an important role in improving the efficiency and efficiency of economic production. Among various types of vacuum pumps, rotary vane vacuum pump is the most widely used in the industrial field. It is one of the most important types of vacuum pumps, and also the most rapid development of functional structure of vacuum pumps.

With the continuous progress of the technological performance of rotary vane vacuum pump, industrial robots, microelectronics, computers, intelligent and image sensing technology are widely used in the pump production system. In the future market, the R & D and manufacturing of rotary vane vacuum pump will develop in the direction of high speed, multi-function and intelligent control. Automation and integration will become the future rotary vane vacuum pump Exhibition direction.

In order to meet the market demand, domestic enterprises in vacuum pump equipment industry should pay more attention to the integration and automation of vacuum pump production. In the production of vacuum pump equipment, we should pay attention to the function switching design of rotary vane vacuum pump equipment, improve the integrated function of rotary vane vacuum pump, and make it have better functional applicability.


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Vacuum pump in beekeeping equipment

The pulp production frame or base strip shall be covered with sterilized wet towel and sent to Qianjing disinfection room. The heightening part of the platform base shall be cut off with a quick knife sterilized with alcohol, and then the larvae shall be picked out with a bamboo or stainless steel camera, and then the king's pulp shall be dug out with No. 2 oil painting brush or small shovel made of ox horn and bamboo and put into a plastic bottle. In order to improve the efficacy of digging royal jelly and improve the sanitary conditions in the process of extracting royal jelly, a pulp aspirator can be used to absorb royal jelly.

The aspirator is a kind of equipment that absorbs royal jelly from the base by the negative pressure produced by the suction device, also known as royal jelly aspirator. The utility model is composed of a suction device, a negative pressure bottle (which is omitted by some pulp absorbers), a slurry storage bottle, a spherical suction head, a pressure rubber tube and a glass tube. The air in the negative pressure bottle, the storage bottle, the glass tube and the rubber tube is continuously pumped out by the air suction device to form a negative pressure system, so that the pulp suction head can absorb the royal jelly from the foundation into the slurry storage bottle.

The electric vacuum pump is a small electric vacuum pump (pumping rate is. 5 L / s) as a pumping mechanism, it has high vacuum degree, high pumping rate and high working efficiency. But it needs a place with electricity to use.

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Vacuum check valve

Vacuum pump equipped with the vacuum check valve is also known as one-way valve or check valve, its role is to prevent the medium flow back in the pipeline. It is also a check valve. Vacuum check valve is widely used in vacuum pump.

In the process of starting and stopping the vacuum pump, the vacuum check valve can better protect the pump and the pumped system, so as to make the vacuum pump play better performance and increase the service life. The opening and closing parts open or close automatically by the medium flow and force to prevent the reverse flow of medium is called check valve.

Check valve is an automatic valve, which is mainly used in the pipeline with one-way flow of medium. It only allows the medium to flow in one direction to prevent accidents. According to the structure, vacuum check valve can be divided into lift check valve, swing check valve and butterfly check valve. Lifting check valve can be divided into vertical and horizontal two kinds.

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Single nozzle oil diffusion pump

The structure and principle of the diffusion pump are evaporator at the bottom and the diffusion pump oil is stored in it. The upper part is the air inlet, the right side pipe is the air outlet, and the mechanical pump provides the pre vacuum at the air outlet during operation. When the oil is heated by the electric furnace, the generated oil vapor is transmitted along the

The flow tube is ejected downward through the umbrella nozzle. Because there is vacuum (10-2 ~ 10-3 Torr) provided by mechanical pump outside the nozzle, the oil steam flow can be ejected for a long distance and hooked into a jet moving towards the air outlet. When the jet finally touches the wall cooled by cooling water, it will be given a liquid rest and flow back to the evaporator for reuse.

Once the gas molecules entering the pump from the air inlet fall into the steam flow, they will obtain the downward movement and fly down. Because the jet has high speed (about 200m / s), high vapor density (several to dozens of Torr of vapor pressure), and the diffusion pump oil has high molecular weight (350-500), it can effectively take away gas molecules. Therefore, in the jet interface, gas molecules can not stay for a long time, and its concentration is very small. In other words, on both sides of the jet interface, the extracted gas has a large concentration difference. It is this concentration difference that causes the energy source of the extracted gas to continuously cross the interface, diffuse into the jet and be taken to the outlet. There, they are taken away by mechanical pumps.

industrial vacuum pumps,vacuum furnaces

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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

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SSR Roots Type Blowers

The relationship between vapor pressure and temperature in vacuum system

The relationship between vapor pressure and temperature in vacuum system

When an airtight vacuum system is exposed to air and then pumped, if it is not baked, the partial pressure analyzer will show the peak at the mass of 18 (H2O). This will continue for weeks and months.

The table of water vapor pressure as a function of temperature indicates that the vapor pressure doubles when the temperature is increased by 12 ℃ near the room temperature. Although there is no liquid water in the system after prolonged pumping, there may be a very similar pressure temperature relationship between the surface layer of adsorbed water and the vapor pressure in equilibrium above the adsorbed layer

Honig plotted the vapor pressure of the elements over a wide temperature range in logarithmic coordinates. In the discussion, it is particularly significant that the slope of the curve. At room temperature, it is typical that the temperature increases by 20 ℃ and the pressure changes by 10 times.

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Vacuum pump drying in vacuum

Vacuum pump is widely used in the process of vacuum drying. The so-called vacuum drying is a kind of drying method that puts the material under negative pressure and reaches the boiling point under negative pressure through heating properly or makes the material solidify through melting point after cooling. Under the condition of negative pressure, the boiling point of the water in the material decreases with the increase of vacuum degree. At the same time, the water vapor content is reduced by the vacuum pump clearance, which makes the water and other solutions in the material obtain enough kinetic energy to separate from the material surface. In vacuum drying, some materials which are easy to oxidize and other chemical changes in the drying process can keep their original characteristics better because they are isolated from air under negative pressure, and the materials can also be better protected by vacuum pumping after injecting inert gas.

The process of vacuum drying is to place the dried materials in a closed drying chamber, vacuum the dried materials with a vacuum system and heat them continuously, so that the water inside the materials diffuses to the surface through the pressure difference or concentration difference, and the water molecules obtain enough kinetic energy on the surface of the materials. After overcoming the mutual attraction between the molecules, they escape to the low-pressure space of the vacuum chamber, so as to be true The process of pumping.

In the process of vacuum drying, the pressure in the drying chamber is always lower than the atmospheric pressure, the number of gas molecules is small, the density is low, and the oxygen content is low, so it can dry materials that are easy to oxidize and deteriorate, inflammable and explosive dangerous goods, etc. It can play a certain role in disinfection and sterilization of drugs, food and biological products, and can reduce the chance of material contamination or inhibit the growth of some bacteria.

Because the temperature of water is directly proportional to the vapor pressure in the process of vaporization, the water in the material can vaporize at low temperature during vacuum drying, which can realize low-temperature drying. This is beneficial to the drying of heat sensitive materials in some drugs, foods and agricultural by-products.

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Prolong the life cycle of imported vacuum pump

As a kind of modern industrial and agricultural production, scientific research, national defense and other industries and equipment, the imported vacuum pump is generally referred to as vacuum pump, which is powered by mechanical power equipment.

When the vacuum pump is applied in industrial production, it may slow down the operation performance of the vacuum pump due to various failures, thus reducing its one-time continuous operation cycle and affecting its life cycle. In addition, the installation and operation of the vacuum pump are not standardized, resulting in the high bearing temperature, bearing box fracture and other problems of the vacuum pump, greatly reducing the continuous operation cycle of the vacuum pump, so the maintenance personnel of the vacuum pump must often work overtime to repair and improve, which not only reduces the operation efficiency of the vacuum pump, but also greatly increases the production of finished products.

In fact, we can take some simple ways, such as innovating the equipment, guiding the operators to use the equipment in a standard way, regular maintenance and inspection of the equipment, regular lubrication of the equipment, and applying new technologies to improve the operation performance and prolong the life cycle of the vacuum pump.

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How to choose roots vacuum pump correctly

How to choose a good roots vacuum machine? What should we pay attention to? But to choose roots vacuum pump, we need to choose the right pressure, otherwise it will not play a role in the enterprise. Here is a small compilation to share the knowledge about roots vacuum pump for you. How to choose roots vacuum pump correctly?

It is very important to choose the speed ratio between roots pump and the front pump of roots pump vacuum unit. Because the compression ratio of Robo pump is very limited. This compression ratio determines the capacity of the previous pump, because the compression ratio is the inverse ratio of the pumping speed of the two pumps. Generally, the compression ratio is selected within 2-10. In addition, we should consider the requirements of pre pumping time. Vacuum equipment is used as auxiliary equipment in all kinds of mechanical equipment. If the normal working time is much longer than the pre pumping time, a smaller front stage pump can be selected (the compression ratio can be larger). If the vacuum is larger and it is required to pre pump quickly, a larger front stage pump will be used. Sometimes, in order to give full play to the efficiency of the equipment, a larger pre pumping pump is installed in front of the unit, which is stopped after normal operation, and maintained by a smaller pre pump, so as to save power.

The requirements for the limit pressure of Roots vacuum pump unit are also necessary to be considered when selecting the front pump. The high requirements for the limit vacuum degree (up to 1 × 10-3 PA ~ 1 × 10-2Pa pressure) are generally selected as the front pump by the two-stage rotary vane oil seal mechanical pump or the two-stage sliding Yan mechanical pump. The mechanical pump with single-stage oil seal can be used as the front pump when the limit vacuum is between (1 × 10-2Pa ~ 1 × 10-1pa), and the reciprocating vacuum pump or liquid ring vacuum pump can be used as the front pump when the limit vacuum is between 133 ~ 1333pa.

Dry Screw Vacuum Pump

industrial vacuum pumps,vacuum furnaces

Roots Vacuum Pump

Market potential of dry screw vacuum pump

At present, the application of dry screw vacuum pump is very extensive, and the demand is infinite, so the development prospect of dry screw vacuum pump is also excellent, mainly from these aspects. The development prospect of the total dry screw vacuum pump is very good.

In the future, for the oil industry in oil production, oil transportation and oil refining, the demand for high-efficiency water injection pump, heavy oil pump, oil pipeline pump and screw pump will increase greatly, and the demand for different types of industrial pumps will be about 140000-150000 sets. For the three chemical pumps, the market for large-scale fertilizer Methylamine Pump, large and medium-sized high-temperature and high-pressure magnetic pump, and special material non-metallic chemical pump will also expand, and the demand for all kinds of chemical pumps will be 100000-120000.

At present, the model of dry screw vacuum pump is used in many working occasions. The whole adaptability of dry screw vacuum pump is strong and its efficiency is high. Recently, the design trend of dry screw vacuum pump is mainly designed for specific working conditions, which is more targeted, and the designed screw pump has high efficiency.

Dry screw vacuum pump is widely used in many industries, such as chemical plants, mines, pharmaceutical plants, food factories and so on. Now the application of dry screw vacuum pump is very extensive, the demand is infinite, so the development prospect of dry screw vacuum pump is excellent.

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imported vacuum pump advantages

Several kinds of vacuum pumps are often used in the chemical industry. Yazhireid mechanical and electrical technology, a common vacuum pump in the chemical industry, can be simply divided into variable volume vacuum pump and jet vacuum pump. The variable volume vacuum pump uses the periodic change of the volume of the pump chamber to complete the installation of suction and exhaust. The rotary vane vacuum pump, slide valve vacuum pump, water ring vacuum pump and roots vacuum pump belong to variable volume Product vacuum pump. Jet vacuum pump is a kind of momentum transfer pump which uses the high-speed jet produced by the pressure drop of Venturi effect to deliver gas to the outlet. Water jet vacuum pump, steam jet vacuum pump, steam water series jet vacuum pump and steam water combination jet vacuum pump belong to jet vacuum pump.

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. The advantages of the utility model are that the air volume is large when the vacuum is low, and the condensable gas such as water vapor can be directly pumped.

Jet vacuum pump is a kind of momentum transfer pump which uses the high-speed jet produced by the pressure drop of Venturi effect to deliver gas to the outlet. It is divided into water jet vacuum pump, steam jet vacuum pump, steam water series jet vacuum pump and steam water combined jet vacuum pump. Jet vacuum pump has many advantages, such as wide range of vacuum degree, direct extraction of condensable gases such as steam and granular medium, simple structure, convenient operation, small amount of maintenance without running parts, energy saving and consumption reduction, etc., which make the imported vacuum pump more and more widely used in various processes of chemical operation.

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Advantages of dry vacuum pump

The most obvious is that the dry vacuum pump does not have water as the medium. Compared with the traditional vacuum device, it can effectively save water resources and reduce energy consumption. Compared with other enterprises, it can truly make the production more environmentally friendly and improve the capacity of production capacity development. At the same time, in the growing strength advantage, the performance of dry vacuum pump has been fully reflected its own advantages, increasing the importance of product application and development capacity for the production needs of enterprises, and constantly increasing the strength and capacity of driving technology to improve the effective production capacity.

With the overall level of the dry vacuum pump, speeding up production and improving its application ability reflect the strength of all aspects. According to the domestic industry situation, increasing investment in product development, and actively learning advanced technology in all aspects to enhance the ability of self-development, which reflects the performance of the dry pump. Dry vacuum pump is the future development trend of the industry. Although it is not very useful, apart from the reasons, high house price, and the user's understanding of dry vacuum pump is not in place, and they do not see the future economic benefits of the enterprise. The focus is on how to optimize the selection of dry vacuum pump?

For different types of dry vacuum pump, we hope to reduce its physical size. However, this is against the pumping speed of vacuum pump, because the volume is directly proportional to the pumping speed of vacuum pump and vacuum pump, small physical size means small volume. Of course, there is also an important factor that affects the pumping speed of vacuum pump, that is speed. In order to match the small size and the large size of the vacuum pumping speed, it is necessary to increase its speed. There are two ways to change the rotating speed of the vacuum pump, one is to change the frequency of the power supply, that is, the frequency of use; the second is to change the transmission ratio of the gearbox. Among them, the advantage of using inverter is that it can provide a closed-loop control, but it is easy to cause torque loss under heavy load. Gearbox ratio is a very economical way, of course, it can only provide a single speed that cannot be controlled.

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What is the configuration of water ring vacuum pump

Water ring vacuum pump is one of the vacuum pumps. In fact, water ring pump was used as a self-priming pump before, but with the continuous research and improvement of people, its application has been very extensive. So what is the general configuration of water ring vacuum pump?

Water ring vacuum pump is mainly composed of impeller, pump body, suction and exhaust disc, water ring formed by water on the inner wall of pump body, suction port, exhaust port, auxiliary exhaust valve, etc. Because of such high-quality configuration, the pump can be widely used in many industrial processes, such as vacuum filtration, vacuum water diversion, vacuum feeding, vacuum evaporation, vacuum concentration, vacuum moisture return and vacuum degassing.

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The reason why the flow of vacuum pump can not reach

When the vacuum pump is in use, the flow rate determines the output. If the flow rate is too small, it can not meet the use requirements, which will seriously affect the use efficiency. So once the flow can not reach the situation we need to find out the reason in time, let's explain it to you.

If the flow of the newly installed vacuum pump fails to reach, first confirm whether the power supply is normal, and whether the reversal caused by the reverse connection of the wire leads to the flow failure, which needs to be eliminated one by one.

The reason why the flow can't be reached is also the wrong selection. Due to the high lift required by the actual working condition and the low lift of the pump, the required requirement can't be met. The vertical height of the on-site outlet pipeline is about 15 meters, and then the horizontal distance is about 1000 meters. After the use, the user's reflected flow can't reach the actual flow only about 60 m3 / h, so the situation can be seen from the above data If the head of the pump is too low, it can be sure that the local flow of the outlet water can not meet the design standard. The horizontal distance of 1000m must be calculated at least according to the head of 20m, so the head of the working condition must be 40-50m sewage pump products to reach the rated flow parameters.

If the flow of the used vacuum pump is not up to the standard, it may be caused by the abrasion and corrosion of the impeller and pump body, or it may be caused by the blockage of the pump body and pipeline. The elimination method is to first confirm whether the pump body and pipeline are blocked, and then check whether the impeller and pump body are worn and corroded, replace the new accessories or select the corrosion-resistant ones The stainless steel vacuum pump product or the self-priming pump product installed on the ground without soaking in water is more suitable. It is also possible that the flow can not be reached due to the loose impeller nut.

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industrial vacuum pumps,vacuum furnaces