How does a micro vacuum pump work? The role of a vacuum pump

The miniature vacuum pump mainly refers to a device with an inlet and an exhaust nozzle, the working medium is mainly gas, and the vacuum or negative pressure can be continuously formed at the inlet, and the slight positive pressure is formed at the exhaust nozzle, and the volume is small. Therefore, Pronuok vacuum technology is simply said: its working principle is mainly to discharge the air pressure in the container under the action of pressure difference.

The basic principle of the miniature vacuum pump: the circular motion of the motor, through the mechanical device to make the diaphragm inside the pump reciprocating motion, so as to compress and stretch the air in the pump chamber of a fixed volume to form a vacuum (negative pressure), at the pump outlet and the outside atmospheric pressure to produce a pressure difference, under the action of the pressure difference, the gas pressure (suck) into the pump chamber, and then discharged from the exhaust port.

A closed container (at the beginning, the inside is 100kPa), connected to a micro vacuum pump, and continuously pumped it, and finally the gas pressure in the closed container will be lower than the atmospheric pressure, reaching an absolute pressure of 60kpa. Not only that, after special technical improvement, in addition to the miniature vacuum pump with single pumping, it can also form a miniature vacuum pump for pumping and pumping (that is, the exhaust end can produce a relatively large positive pressure), which is used for pressurization, inflation, overcoming system resistance, etc., and a very unique dual-purpose miniature vacuum pump, which can be used for long-term idling, dry running, etc., unlike the general water pump idling, or dry running will damage the pump.

It is precisely because the suction port or exhaust port can form a pressure difference with the outside atmosphere, and at the same time, unlike large vacuum pumps, which need lubricating oil and vacuum pump oil, will not pollute the working medium, and has the advantages of small size, low noise, maintenance-free, and can run continuously for 24 hours, so the micro vacuum pump is widely used as a power device, widely used in gas sampling, gas circulation, vacuum adsorption, accelerated filtration, automobile vacuum assistance, etc., and has been widely used in medical, health, scientific research, environmental protection and other fields.

The principle is to use the eccentric rotor to form in the pump cavity and discharge the gas out of the pump by rotating the volume change, mainly in the suction process, the volume of the suction chamber increases, and the vacuum degree.

Lower, the gas in the container is sucked into the pump chamber, the volume becomes smaller and the pressure increases during the exhaust process, and finally the coarse rock front gas is discharged out of the pump through the oil seal. Extended information: Use a vacuum pump.

Precautions: Before normal operation, the vacuum pump should be run for a test run to check whether the vacuum pump has abnormal vibration and impact sound. The ultimate pressure of the vacuum pump should also be measured for the first time and should comply with the technical specifications.

Under the condition of long-term working of the vacuum pump, the temperature of the vacuum pump should not exceed 70 degrees. As for the determination of pumping velocity. Due to its complexity, it is generally not examined.

Cooling water is required.

of mechanical vacuum pumps. The cooling water should be turned on before starting. The outlet water temperature of the cooling water should not exceed 30 degrees.

When installing the vacuum pump for the first time, it should be checked whether the motor is rotating positively, that is, the motor is consistent with the rotor in the vacuum pump, and the normal rubber flushing operation direction of the motor is marked above the motor. Vacuum equipment should be installed in a clean and clean environment, and should not have sundries, dust, water sources, and places with too high temperatures.

The function of the vacuum pump is to generate negative pressure, thereby increasing the braking force. The vacuum pump of the automobile generator is generally an oil pump, that is, the vacuum pump core and the shaft of the generator rotate together, and negative pressure is generated in the vacuum pump casing through continuous oil absorption and oil pumping.

The vacuum pumping capacity of the vacuum pump is actually based on the relative vacuum, that is, the maximum vacuum is the percentage of the cavity front relative to the external air pressure.

Vacuum pump refers to a device or equipment that uses mechanical, physical, chemical or physicochemical methods to pump air from the pumped container to obtain vacuum.

According to the working principle of vacuum pumps, vacuum pumps can basically be divided into two types, namely Wusheng gas capture pump and gas transfer pump. It is widely used in metallurgy, chemical industry, food, electronic coating and other industries.

Vacuum pump. The effect is to generate negative pressure, which increases the braking force. A device or apparatus that uses mechanical, physical, chemical, or physicochemical methods to obtain a vacuum by pumping a pumped container.

In layman's terms, a vacuum pump is a device that uses various methods to improve, generate and maintain vacuum in an enclosed space. According to the working principle of vacuum pumps, vacuum pumps can basically be divided into two types, namely gas capture pumps and gas transfer pumps. <

The role of the vacuum pump is to create negative pressure, which increases the braking force. A device or apparatus that uses mechanical, physical, chemical, or physicochemical methods to obtain a vacuum by pumping a pumped container. In layman's terms, a vacuum pump is a device that uses various methods to improve, generate and maintain vacuum in an enclosed space.

According to the working principle of vacuum pumps, vacuum pumps can basically be divided into two types, namely gas capture pumps and gas transfer pumps.

With the development of vacuum applications, there are many types of vacuum pumps, and their pumping speeds range from a few tenths of a liter per second to hundreds of thousands or millions of liters per second. With the vacuum technology in the field of production and scientific research in the field of its application pressure range requirements more and more wide, most of the vacuum pumping system composed of several vacuum pumps to meet the requirements of the production and scientific research process after the common pumping, because the vacuum application department involved in the range of working pressure is very wide, so any type of vacuum pump can not be fully applicable to all the working pressure range, can only be used according to different working pressure ranges and different working requirements. In order to facilitate the use and the needs of various vacuum processes, sometimes various vacuum pumps are combined according to their performance requirements and applied in the form of units.

The principle of the micro vacuum pump simply means that it has an air nozzle and an exhaust nozzle with one input and one outlet, and can continuously form a vacuum or negative pressure at the inlet; Slight positive pressure is formed at the exhaust nozzle; The working medium is mainly gas, and the size is small.

For example, if a closed container (at the beginning of the liquid slide, the inside is 100 kPa at atmospheric pressure), connect it to a micro vacuum pump VAA6005 to continuously pump air, and finally the gas pressure in the closed container will be lower than the atmospheric pressure, reaching an absolute pressure of 60 kPa.

Not only that, after special technical improvements, in addition to the miniature vacuum pump with single pumping, it can also form a miniature vacuum pump for pumping and pumping (that is, the exhaust end can produce a relatively large positive pressure) such as PCF, FAA series, which is used for pressurization, inflation, overcoming system resistance, etc., and the very unique water-gas dual-purpose miniature vacuum pump PHW series It can be used for long-term idling, dry rotation and other high-speed occasions, unlike the general water pump idling, or dry rotation will damage the pump.

It is precisely because the suction port or exhaust port can form a pressure difference with the outside atmosphere, and at the same time, unlike large vacuum pumps, which need lubricating oil and vacuum pump oil, will not pollute the working medium, and has the advantages of small size, low noise, maintenance-free, and can run continuously for 24 hours, so according to the principle of micro vacuum pump, micro vacuum pump is widely used as a silver disturbance power device for gas sampling, gas circulation, vacuum adsorption, accelerated filtration, automotive vacuum assistance, etc., in medical, health, scientific research, Environmental protection and other fields have been widely used.