Micro air pump for quick release of objects

The essence of vacuum adsorption of micro vacuum pump: after the micro vacuum pump is powered on, the pressure difference between the negative pressure generated at the suction port and the external atmospheric pressure is used to firmly absorb the object through the contact elements such as suction cup, so as to play the role of hanging, fixing and moving objects.

The next process of vacuum adsorption is the release of the object after being absorbed. When it is necessary to release the absorbed object, the pump must be shut down first, and do not continue to vacuum. After the pump is shut down, the object may not fall off immediately, because the pump has a certain pressure holding capacity, and the vacuum will continue to maintain for a certain period of time (the length of time depends on the air leakage of the system).

At present, the micro air pump, micro vacuum pump and so on, including domestic micro air pump, micro vacuum pump and most of foreign micro air pump and micro vacuum pump, because of the internal process principle and other reasons, only one-way flow of gas from the air inlet to the exhaust port is allowed, and vice versa. It is not simple to reverse the motor can change the direction of the air flow, to meet the requirements of the release object.

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Detailed introduction of magnetic pump

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

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

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

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Simulation calculation of cavity clearance in twin screw vacuum pump

The temperature field distribution and deformation of the two rotors are obtained by loading the first and third kinds of thermal boundary conditions, as well as the force and displacement boundary conditions. The results show that the radial deformation of the rotor is different among different stages. Therefore, this paper makes detailed requirements for the clearance in the vacuum pump cavity, and carries out calculation. The calculation results provide a theoretical basis for the determination of the cavity clearance of the twin screw vacuum pump.

In the working process of screw vacuum pump, the rotor will have thermal deformation, so appropriate clearance should be reserved in the rotor manufacturing process. If the clearance is too small, the deformation is easy to cause the rotor to get stuck; if the clearance is too large, the screw vacuum pump cannot obtain a higher vacuum degree. Therefore, the calculation of clearance is very important. At present, most of the related literature at home and abroad is focused on screw compressor, and relatively few literatures about screw vacuum pump have not made specific calculation on the clearance.

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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.

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High frequency discharge in vacuum system is described

Do you know about high frequency discharge in vacuum system? If you don't know much about it, what is the high frequency discharge in vacuum system. High frequency discharge refers to the phenomenon of gas discharge when the frequency of power supply is more than 1 MHz. High frequency discharge can produce stable large volume plasma, so it is the most commonly used discharge form in plasma film-forming and etching technology.

The power frequency of high frequency discharge in vacuum system is usually 13.56 MHz. This is because in order to prevent the interference of high frequency electromagnetic wave radiation energy on communication, the frequency range for industrial use is specified by the international telecommunication authority, including the frequency of 13.56 MHz. However, due to the nonlinear effect of glow discharge, many harmonics of fundamental frequency appear in the discharge circuit, and the high-order frequency waves affecting communication are still emitted from the discharge circuit. The energy of these harmonic radiation in the circuit is much smaller than that of the fundamental frequency wave.

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Roots vacuum pump as booster pump

As one of the vacuum pump series, roots vacuum pump is widely used in the chemical and pharmaceutical industries. As a booster pump, roots vacuum pump is one of the main products of our company, and its wide range of application is favored by customers.

The pressure of hydraulic system of Roots vacuum pump is not adjusted properly, resulting in system heating. Roots vacuum pump hydraulic system is generally high pressure and large flow system. The introduction of Roots vacuum pump into PLC greatly improves the reliability of electrical system. At the same time, the pressure of Roots vacuum pump and the working conditions of each system should be observed. After all systems work normally, the roots vacuum pump can be pumped continuously as much as possible. The piston of concrete cylinder should be kept running at the maximum stroke, so as to give full play to the maximum efficiency of Roots vacuum pump and make the concrete cylinder wear evenly in the length direction The pressure is too high and unstable, and the oil temperature rises. In case of pipe crown vibration and pumping difficulties, it is not allowed to pump by force, but the causes should be found out immediately to eliminate them. From the investigation of the use of fine aggregate concrete pump, it is found that the temperature of the hydraulic system of many types of Roots vacuum pump can be as high as 60E after using for about 40min, and the thermal equilibrium temperature of the hydraulic system can be as high as 70E after using for about 2h, while the normal thermal balance temperature of the hydraulic system of Roots vacuum pump should be about 50E. Therefore, the oil temperature of Roots vacuum pump hydraulic system is too high, that is heating problem.

In Roots vacuum pump hydraulic system, due to the performance requirements, the system is often equipped with safety valve, overflow valve and sequence valve. If the pressure of the safety valve is adjusted too low, the safety valve will open frequently, resulting in overflow loss and system heating; if the pressure is adjusted too high, the leakage in the system will increase and the system will heat up. Therefore, the safety valve and pressure value should be calculated and adjusted correctly according to the load requirements of the hydraulic system, so as to ensure that the system works within the specified pressure range. The elbow of the delivery pipe can be knocked with a mallet first. Conical pipe and other parts, and slow pumping or reverse pump to prevent blockage. In hot summer, wet straw bags should be used to cover the pipeline to prevent the concrete from collapsing too fast and blocking the pipe during the pumping process. However, no matter what type of pump, its executive components are the same, including the main delivery cylinder, distribution valve swing cylinder and mixing motor, and the cylinder reversing is controlled by the on-off and travel switch (or proximity switch) of the corresponding solenoid valve.


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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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dry screw vacuum pump purification process

The purification and cleaning of screw vacuum pump is to remove the gas and compressed steam remaining in the dry screw vacuum pump during compression. When the dry screw vacuum pump is restarted, these residual materials may cause motor overload, which may produce excessive friction load or damage the screw or pump body. Therefore, in the case of a considerable amount of dirty substances in the pump, the pump should be cleaned.

The purpose of cooling and purification is to cool the pump body and screw. When the pump is running, the screw rotation makes the pumped gas enter the pump cavity and compress to the exhaust end. Due to the hot compression, the gas temperature will rise rapidly. In order to prevent the pump from being damaged, these heat must be eliminated immediately. For small screw vacuum pump, cooling purification is optional.

Air in the atmosphere is usually used as the cooling and purification medium. When the extracted process gas is not suitable for air purification, other cooling media, such as nitrogen, clean and dry air, should be used. For standard pumps, an interface is provided near the exhaust end of the pump body.

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Energy saving device of rotary vane vacuum pump

The energy-saving control device of rotary vane vacuum pump includes rotary vane vacuum pump and asynchronous motor driven and connected with it, rotary vane vacuum pump connected with sealed container which needs vacuum pumping, vacuum measuring instrument, control device and AC voltage regulating device. The air pressure sensor connected to the vacuum measuring instrument is located in a sealed container, the electrical signal output end of the vacuum measuring instrument is connected with the control device, the control terminal of the control device is connected with the AC voltage regulating device connected with the power grid, and the output end of the AC voltage regulating device is connected with the asynchronous motor.

The vacuum measuring instrument receives the gas pressure signal in the sealed container transmitted by the pressure sensor, and sends it to the control device through transmission and amplification. The control device stores a program to adjust the voltage according to the gas pressure signal, and compares the received gas pressure signal with the set value. When the gas pressure of the extracted container is lower than the set value, it will send a step-down command to the AC pressure regulating device. According to the command of the control device, the AC voltage regulator supplies the voltage to the asynchronous motor when the gas pressure decreases, so as to reduce the energy consumption. The vacuum measuring instrument is equipped with a gas pressure indicator, which can display the current gas pressure in the sealed container.

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Main characteristics of vacuum drying in vacuum system

Vacuum system is widely used in vacuum drying process. At present, vacuum drying equipment is constantly updated with the development of modern mechanical manufacturing technology and electrical technology. The so-called vacuum drying is a drying method in which the material is placed under negative pressure and reaches the boiling point under negative pressure by heating properly or by cooling down to make the material solidify through the melting point. The boiling point of water in the material decreases with the increase of vacuum degree in the negative pressure state. At the same time, vacuum pump is used to dehumidify the water in the material to reduce the water vapor content, which makes the water and other solutions in the material get enough kinetic energy away from the material surface.

Due to the isolation of air under negative pressure, some materials which are easy to oxidize and other chemical changes during the drying process can keep their original characteristics better, and the materials can be better protected by injecting inert gas and vacuuming. The common vacuum drying equipment includes: vacuum drying oven, continuous vacuum drying equipment, etc.

The process of vacuum drying is to place the dried materials in the airtight drying chamber, and heat the dried materials continuously while vacuuming with the vacuum system, so that the moisture inside the materials diffuses to the surface through the pressure difference or concentration difference. The water molecules obtain enough kinetic energy on the surface of the materials, and escape to the low-pressure space of the vacuum chamber after overcoming the mutual attraction between the molecules The process of pumping with empty pump.

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Composition of vacuum system

What are the main components of a complete vacuum system? There are many kinds of vacuum system equipment, but no matter which kind of vacuum application equipment, there is a set of exhaust system to sweep the gas in the vacuum container, so as to obtain the vacuum condition in the vacuum container. For example, the container used for vacuum disposal is connected to the vacuum pump through pipes and valves. When the vacuum pump empties the container, there is a vacuum measuring device on the container, which constitutes a simple vacuum pump system.

A simple vacuum system can only obtain vacuum in a low vacuum scale in a pumping vessel. When high vacuum scale vacuum is needed, high vacuum pump is usually connected with vacuum system in series. When the high vacuum pump is connected in series, the valve is usually added at the outlet and outlet of the valve.

High vacuum pump to adhere to the vacuum. Assuming that the high vacuum pump in series is an oil dispersion pump, in order to prevent a lot of oil vapor flow back to the pumping container, a drain valve and water cooling baffle are added at the outlet of the oil dispersion pump. According to the requirements, dust remover, vacuum relay head, vacuum soft connection, exhaust valve at the outlet of vacuum pump can be used in the pipeline to form a more perfect high vacuum system.

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Vacuum technology of imported vacuum pump in sand blasting machine

The principle of sand collection, lifting and transportation in sand blasting room is the vacuum technology of imported vacuum pump. The application of imported vacuum pump in sandblasting machine industry is essential. Sandblasting machine is the category of air conveying machinery. In the pipeline, compressed air is used to transport powdery particles (1 ~ 4mm in diameter) from one place to another. In the process of converting kinetic energy into potential energy, the high-speed moving sand particles scour the surface of the object, so as to improve the surface quality of the object.

In vacuum sand lifting, the sand is lifted into the sandblasting machine tank by the suction force of the imported vacuum pump, so as to replace the manual sand loading and sand transportation, reduce the opportunity of operators to contact silica dust, reduce the labor intensity and improve the productivity.

Firstly, start the imported vacuum pump to cause the vacuum in the buffer tank, so as to lift the sand to a certain height in the buffer tank, and then flow into the rotary screen from the buffer tank, and the qualified sand will automatically fall into the sand storage tank after screening.

The second step is to connect the vacuum to the sand blasting tank (a sand separation buffer tank is installed in the middle) to cause the vacuum in the sand blasting tank, so that the sand particles are lifted from the sand storage tank to the sand blasting tank to complete the lifting and transportation of sand particles.

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Screw vacuum pump in metal smelting

As we all know, in the metallurgical industry, high vacuum smelting is widely used for production or processing, especially in some high-end fields, the requirements of impurity content, oxygen, nitrogen and even hydrogen content of products are extremely strict, so high standards and requirements of vacuum system are required.

For example, vacuum distillation (the more advanced vacuum unit composed of dry screw vacuum pump and roots vacuum pump): in the distillation tank with vacuum degree higher than 1.3 PA, the reduction product is heated at 900-950 ° for a long time, and magnesium and magnesium chloride can volatilize and condense on the condenser.

This is mainly because of the following points:

1: It can greatly reduce the boiling point of the reduced product and make it easier to volatilize.

2: It can greatly increase the volatilization rate. The volatilization rates of different substances vary greatly under different vacuum degrees.

3: Prevent the production of Ti-Fe alloy or other compounds from affecting the product quality.

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Assembly clearance of vacuum pump

The fitting tolerance between parts is a very important parameter, which directly affects the performance of vacuum pump. The accuracy of the parts has been analyzed before and the rough bottom will appear if the fitting is not good. For example, there is a 2X-4 rotary vane vacuum pump. The user always thinks that the vacuum degree is not high. It is found that it runs normally without air leakage or oil leakage, the noise is not obvious, and the temperature rise is not serious, but the vacuum degree is only 20 grids (about 8 * 10-2 Torr). The experience of the vacuum pump factory has proved that the vacuum pump oil is too dirty, there is moisture in the oil, the wrong oil is used, the parts in the cavity are worn, and the clearance between parts is too large.

When repairing, the oil can be changed first because this method is the most convenient and effective method. Often some of the pump vacuum is not high, change the oil to solve. If the oil is not changed, the next step is to replace the oil for cleaning. The vacuum degree of the 2x-15 type pump is still 20 gauge after oil change, so it is decided to take it apart for inspection. After cleaning, measure the cavity size of parts and components, and find that the end clearance is 4-5 wires and partial shot. However, considering this kind of clearance, as long as the oil circuit is adjusted properly, pengyou can be installed, but it is still 20 gauge. When it is disassembled for the second time, check the out of perpendicularity (should be no more than half wire, i.e. Q005 mm). If it is found that it is not good, it is sent to the surface grinder to grind 2-3 wires from the cavity gamma surface, so that the fit gap between the rotary blade and the end cover of the cavity is less than 2-3 wires, and the non perpendicularity is qualified. In this way, after re assembly, the problem is solved. The vacuum degree reaches 70 grid ((about 1.5 * 10-2 Torr), which has met the production use.

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Function of exhaust valve in rotary vane vacuum pump

The exhaust valve plate of rotary vane vacuum pump is made of rubber pad. The exhaust valve plate needs to be immersed in the pump oil. During the exhaust process of vacuum pump, compressed air pushes open the valve plate, and the gas passes through the valve plate and exhausts. The vacuum pump oil plays a sealing role. Generally speaking, the valve plate is used to block the small hole on the disc when the vacuum pump is working. If it is broken, the small eye of the vacuum pump will leak all the time when the vacuum pump is pumping, which will not achieve the effect, and the vacuum degree will be reduced.

Some users don't like to install the valve at the suction port of the vacuum pump. They think that the vacuum pump can work well without the valve. The exhaust valve is the working part in the pump. The negative pressure of the system makes the valve plate in a tight state all the time, so the valve plate is easy to be strained, so that the service life of the pump is greatly reduced, and at the same time, the maintenance cost is not small. This problem can be avoided by installing a valve in the suction port.

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Application performance of Roots vacuum pump

Based on the current overall application ability of Roots vacuum pump, on the basis of fully doing the actual performance of the product, we should promote the overall application ability of the product to a higher advantage development through the advantage of development. Under the premise of increasing the promotion of the basic ability of the product, we should take the development advantage of the product's technical performance as the overall driving force to provide effective ability On the basis of strength advantages, we should drive the overall development of roots pump, promote the continuous promotion of its superior performance, and do a good job in driving the application effect of products.

In order to speed up the development of Roots vacuum pump, in terms of the application effect of various aspects of the market, gradually improve the driving force of all aspects of the product application ability, increase the favorable promotion of the product applicability, expand the overall driving force of its functional development, play the promotion of various product capabilities with strong application advantages, and fully complete the overall application of basic products In the effect embodiment, through the continuous favorable promotion of its technology, the promotion of the product application ability can be brought into full play.

The performance expansion of Roots vacuum pump has a continuous promotion effect on the overall utilization rate of the product. In the process of increasing the application effect of the product, promoting the application performance of all aspects of the product with a greater development advantage will drive the actual promotion of the product application ability.

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Tightness of vacuum pump unit

Many factors in the operation of the vacuum pump unit will affect the vacuum tightness. How much do you know about the tightness of the vacuum pump unit? Here is a detailed introduction:

The reasons that affect the vacuum tightness in operation are mainly manifested in the shaft seal pressure, the water level of the shaft seal heater and the secondary leakage of the shaft seal. Determine the best shaft seal pressure. If the pressure of the shaft seal is too large, the clearance is too small, and the shaft seal is too hot and too low; if the pressure of the shaft seal is too small, the gap is too large, and the steam leakage of the shaft seal is too large, which also affects the working efficiency of the vacuum pump unit.

In order to ensure the optimal shaft seal pressure of vacuum pump unit, the steam supply pressure of shaft seal formed by self sealing of shaft seal system under minimum stable combustion load and high load is 45kpa, which can meet the pressure of low-pressure seal shaft seal and reduce water inflow in oil as much as possible. Monitor the water level of the shaft seal heater, adjust it in time in case of any abnormality to ensure that the water level of the shaft heater is normal. Remove the shaft heater without water level or the water level is too low, resulting in the decrease of vacuum tightness。

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Material of rotary vane vacuum pump

Data selection of rotary vane vacuum pump: in order to improve the pump speed, reduce wear and temperature, and ensure the normal performance of the pump, one of the key is how to properly select the stator and vane, which is the main friction pair data. Carbon impregnated alloy, a new type of self smoothing data, is commonly used in the rotary vane of direct coupled pump. Some domestic research institutes have also made comprehensive tests on other materials used as spin sheets. The results show that carbon fiber reinforced plastics and polymer liquid crystal data are of development value.

As the friction and wear between the vane and the stator of the high-speed direct coupled pump increases, the temperature rise of the pump increases. Therefore, improving the friction, wear and smoothness between the vane and the pump cavity is the key to develop a good performance direct coupled vane pump. Through the analysis and calculation of Elastohydrodynamic smoothing theory, it is found that the motion between the vane and the pump cavity is unreasonable, which makes the wear between the vane and the rotor and the pump chamber more serious, and it is difficult to find a suitable smooth condition, which leads to the increase of temperature rise of high-speed vane pump. The way to deal with the wear is to keep the length unchanged during the rotation. However, the current round pump cavity is impossible to do. In theory, an envelope line of stator pump cavity can be proposed, which is tangent to the outside of envelope circle on a series of axisymmetric curves. Of course, the processing technology of this kind of profile is more laborious than that of circular profile, but the extra cost can be compensated from the improvement of pump performance. Such a pump, vibration, noise, temperature rise, wear will be reduced a lot.

Rotor structure and rotor: through the calculation of the geometric pumping speed of the vane pump, it can be seen that when the pump speed has reached a certain high value, increasing the rotor can improve the pumping speed without increasing the rotor eccentricity and the maximum linear speed. Therefore, it is a promising way to improve pumping speed.

At present, the direct coupled pump used by domestic manufacturers adopts the structure of three slot integral rotor, which is equipped with three rotors. The integral rotor with three blades has high strength and rigidity, which can reduce the unbalance of rotor at high speed and reduce the impact load of rotor. The geometric pumping speed calculation shows that the pumping speed of the three slot rotor is 18-20% higher than that of the two slot rotor.

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Development of water vacuum pump in electric power industry

The basic principles for the development of electric power industry are to improve energy efficiency, protect the ecological environment, develop hydropower in an orderly manner, optimize the development of coal-fired power, actively promote nuclear power generation, moderately develop natural gas power generation, encourage new energy power generation, and drive the technological progress of equipment industry.

China will also have an installed capacity of at least 130 million kilowatts, including 40 million kilowatts for hydropower, 60 million kilowatts for thermal power, 70 million kilowatts for nuclear power and 30 million kilowatts for others. During this period, there were more than 500 key projects with an investment of over 100 million yuan, with a total investment of 3 trillion yuan. Among them, there are 207 thermal power projects, 132 hydropower projects, 8 nuclear power projects, 82 wind power projects and 21 biomass power generation projects. Therefore, in the next few years, the power pump market is broad.

Of course, Zhonghuan vacuum pump thinks that the key requirement of electric power pump is to adopt various pipeline booster pumps with energy saving, high efficiency and environmental protection, especially the development of nuclear main pump, charging pump, reactor cooling pump, high pressure safety water injection pump, boric acid pump, nuclear first, second and third stage pump, supercritical and ultra supercritical thermal power unit pump, boiler feed water pump, booster pump, circulating pump, condensate pump and water ring Vacuum pump, centrifugal ash pump, reciprocating ash pump, coupling, metering pump, pump for cooling unit, flue gas desulfurization device and other pump products.

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Roots vacuum pump product application fully reflected

Based on the current overall application ability of Roots vacuum pump, on the basis of fully doing the actual performance of the product, we should promote the overall application ability of the product to a higher advantage development through the advantage of development. Under the premise of increasing the promotion of the basic ability of the product, we should take the development advantage of the product's technical performance as the overall driving force to provide effective ability On the basis of strength advantages, we should drive the overall development of roots pump, promote the continuous promotion of its superior performance, and do a good job in driving the application effect of products.

In order to speed up the development of Roots vacuum pump, in terms of the application effect of various aspects of the market, gradually improve the driving force of all aspects of the product application ability, increase the favorable promotion of the product applicability, expand the overall driving force of its functional development, play the promotion of various product capabilities with strong application advantages, and fully complete the overall application of basic products In the effect embodiment, through the continuous favorable promotion of its technology, the promotion of the product application ability can be brought into full play.

The performance expansion of Roots vacuum pump has a continuous promotion effect on the overall utilization rate of the product. In the process of increasing the application effect of the product, promoting the application performance of all aspects of the product with a greater development advantage will drive the actual promotion of the product application ability.

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