The circumferential motion of the small vacuum pump motor makes the diaphragm inside the pump reciprocating by mechanical device, thus compresses and stretches the air in the fixed volume pump chamber to form a vacuum (negative pressure). Under the action of the pressure difference, the gas pressure (suction) is put into the pump chamber and then discharged from the exhaust outlet.
Attention should be paid to the use of small vacuum pumps:
1. Start-up with load.
If a small vacuum pump has a vacuum in its suction port or a pressure in its exhaust port before starting, another technical parameter of the pump should be considered: the maximum start-up load of the intake port and the maximum start-up load of the exhaust port.
2. Medium temperature of small vacuum pump. According to the temperature of the medium gas passing through the pump, choose the ordinary type or the high temperature type.
3. Reliability of small vacuum pumps. According to the severity of the consequences of the failure of the micro-pump, it is completely in accordance with its own requirements. Special attention is paid to the fact that this parameter is measured under full load and uninterrupted operation, which is the worst working condition. If the actual operation is not full load or continuous operation, the value will be higher, depending on the working condition of the pump. This performance is a test of the manufacturer's technical strength. From the appearance of the product, we can see some, such as the use of special motors rather than ordinary low-cost motors, the weight is relatively heavy in the case of comparable volume, and so on. According to the price of the product, we can also know a little.
4. Electromagnetic interference of small vacuum pump. If a small vacuum pump is controlled by a precise circuit, it may be necessary to order a small vacuum pump with low electromagnetic interference, depending on the anti-interference capability of the circuit.
The working fluids of two series of rotary vane vacuum pumps and water ring vacuum pumps in vacuum pumps are vacuum pump oil and water as working fluids to seal, so as to achieve the purpose of vacuum pumps. But in some vacuum processes, oil-free vacuum pump is required. Oil-free vacuum pump is a single-stage rotary vane vacuum pump. Basic equipment for extracting gases from sealed containers to obtain vacuum.
The pump can be used for air conditioning, refrigeration equipment repair, medical equipment suction device, printing machinery, vacuum packaging, vacuum plastic suction, physical and chemical experiments and small devices requiring vacuum environment, etc. It can also be used as a small oil booster pump, oil diffusion pump, molecular pump and other front-stage pumps. The pump is not suitable for the removal of corrosive ferrous metals, chemical reactions on the pump oil, gas containing particulate dust, as well as excessive oxygen, explosive toxic gases. It can not be used as a transmission pump (i.e. pumping from one container to another).
Mini-Oil-Silent-Rotary-Vane-Lab-Vacuum-Pump
2BE1-Liquid-Ring-Vacuum-Pump-Factory-Price
Roots-Blower-Pumps-Used-for-Chemical-Industrial-Vacuum-Drying
没有评论:
发表评论