First, the use and scope of use of 2X rotary vane vacuum pump: 1, 2X rotary vane vacuum pump is used to extract the gas within a specific sealed container, so that the container to obtain a certain vacuum basic equipment, due to the height of modern science and technology Development, the application of vacuum pumps in various scientific fields and various enterprises and institutions for the metallurgical, chemical, light industry, petroleum, medical, pharmaceutical, printing and dyeing, electrical appliances, electric vacuum, semiconductor, food, atomic energy, textile and other research institutions, tertiary Colleges, industrial and mining enterprises for scientific research and production and teaching purposes. 2, the rotary vane vacuum pump is made of ferrous metal, and more sophisticated, the entire pump work is linked together, so the rotary vane vacuum pump is not suitable for pumping high oxygen content, toxic, explosive It is also not to be used as compressors and transfer pumps for the etching of ferrous metals and gases which chemically act on the vacuum oil. If the gas town of the pump, can be removed to certain condensables. , 3, rotary vane vacuum pump can be used to directly obtain the vacuum degree of vacuum work under 10 ~ 3 torr, and with other vacuum operations. 4, rotary vane vacuum pump is generally not less than 5 ℃ room temperature and not more than 90% of the relative temperature of the environment. 2, 2X rotary vane vacuum pump performance parameters: 2X rotary vane vacuum pump Note: (1) vacuum refers to the pressure of gas remaining in the container being pumped to the partial pressure for the factory standard, the total pressure of the auxiliary standard, heat Dual measurement is the total pressure of a variety of steam and permanent gas, while the table can only measure the permanent gas permanent pressure accounted for the partial pressure, so the value of the two tables have some differences. (2) pumping speed is calculated according to the geometric size in the atmospheric pressure j, the actual pumping speed and geometric pumping speed basically consistent with the pressure in a variety of different pumping speeds have a certain decline. (3) Temperature rise refers to the difference between the temperature of the oil at the exhaust valve and the room temperature after the pump temperature is stable. (4) 2X rotary vane vacuum pump model representation: column 2K-1,2 on behalf of two-stage pump, K on behalf of the rotary vane vacuum pump, a number behind the horizontal line represents the pumping speed per second. 3, 2X rotary vane vacuum pump unboxing Installation: After unpacking carefully remove the rotary vane vacuum pump body, spare parts and manuals and keep it for future use. Remove the filler, wipe the surface of the pump dust, dirt. According to the packing list count the number. Rotary vane vacuum pump installed in a clean, well-ventilated, well-lit room in line with Article 4 requirements. According to the use of the pump should be installed in a certain margin of the site, in order to facilitate operation and maintenance. Pump dimensions see. Rotary vane vacuum pump can be placed on a solid flat ground, without special foundation, if necessary, can be fixed plus additional screws and solid foundation, ground screw size see. Rotary vane vacuum pump, such as close to the use of precision instruments, should consider increasing the shock device. Will be sucked vacuum vessel with a vacuum hose or flange and rotary vane vacuum pump is connected, such as the flange connection, the flange should have rubber ring groove, the form and size shown in Figure 50 is connected to the diameter of the vessel being drawn should not be less than the pump Inlet diameter, tube should be short, the joint should be less, otherwise affect the pumping speed, pipe and fittings leakage should be small. The gas volume of the container to be drawn should be adapted to the pumping speed of the pump, and the pumping speed relationship of the rotary vane vacuum pump is shown in Fig.4. It is advisable to install a vacuum valve between the pump and the vessel to be evacuated in order to control the gas flow. For the pump and recommended to install a bleed valve (or solenoid valve) to stop the pump bleed, to prevent the return oil and easy to start. Connect the power supply according to the voltage indicated on the motor label and the wiring method, and it is recommended to adopt the safety device to avoid overloading. Make sure that the rotation direction of the motor should be in the same direction as the arrow on the pump. Remove the exhaust plug and install the exhaust hood, or remove the cover of the nozzle. Rotary vacuum pump to be connected to the water cooler. Such as the pump must be pumped to remove toxic and corrosive ferrous metals gas, the vacuum oil from the chemical changes of gas, and more than room temperature and dust gas, the intake pipe should be installed in the neutralization, cooling, filtration and other related Device with the use, otherwise it will affect the rotary vane vacuum pump performance and life expectancy. Remove harmful gases, should be placed on the appropriate pipeline, the exhaust gas to the outdoor away from the work area for processing. Note: When installing, care should be taken to prevent iron filings, dirt, dust, etc. from falling into the pump
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