Safety operation for type 2X rotary vane vacuum pump

2 x type rotary vane vacuum pump to the two-stage structure and its working performance levels by high pressure and low pressure of two parts, its inlet connected to the vacuum container or a vacuum equipment, when operating the gas will be a lot of suction and discharge container. When equipment for vacuum, high pressure stage exhaust valve will be closed, high pressure will be transferred to the second level of inhaled gases, and the secondary suction and discharge, such vacuum equipment can obtain a certain vacuum. The technical parameters of the pump are 6 * 10-2pa. According to user’s usage, can be equipped with a vacuum pump (for example the roots vacuum pump), will be 2 x type rotary vane vacuum pump as the backing pump, due to the suction pneumatic booster pump, pump before continuous pumping, can make you get higher vacuum equipment.

Safety operation and maintenance procedures of rotary vane vacuum pump:

(1) rotary vane vacuum pump should be installed in dry, ventilated and clean places.

(2) in general, rotary vane vacuum pump does not need to be bolted on the foundation, but must be placed smoothly to avoid vibration. For example, the mounting frame, the bolts must be tightened.

(3) connect the power according to the motor sign, install the ground wire and fuse with the appropriate capacity, install the heat relay corresponding to the motor, and rotate the motor in the direction of the arrow shown in the pump.

(4) when installing the motor v-belt, it shall be properly tightened and movable.

(5) turn the oil screw on the fuel tank into the center of the oil window.

(6) for the pump installed for the first time, the test shall be carried out to check the vibration caused by installation irregularity during pump operation. If the vibration is large, it should be adjusted.

(7) rotary vane vacuum pump vacuum limit examination, shall meet the prescribed test methods, the pump is not connected container, temperature stability, with compression type vacuum gauge in the pump inlet measured the lowest points of stable pressure, total pressure of the side effect more, have a professional standard, reference, when after all the indexes accord with a standard mount system.

(8) the diameter of the pipe connecting the pumped container shall not be greater than the inlet diameter, the pipe shall be shorter, and the elbow shall be smaller, so as to avoid the obstruction of air flow; The installed pipes and joints shall ensure reliable sealing and no leakage. When using the vacuum hose, the inside of the pipe must be cleaned.

(9) must be used, but with acidic gases, contains a lot of steam, high temperature gas and gas containing dust, the inlet pipe should be in the cooling, filter and is suitable for the device requires otherwise will affect the use of the pump performance and life span.

(10) as pump exhaust gas to human health or the working environment, small pump can position the rubber on the exhaust pipe, large pump can vent cap screw to change pipe discharge gas, should stay away from the workplace.

(11) the environment around the pump workshop should be kept clean frequently to prevent sundries from entering the pump.

(12) when the pump works for a long time, attention should be paid to the proper tightening of the belt and adjustment.

(13) vacuum pump oil of different brands shall not be mixed for use.

(14) rotary vane pump oil is clean, had an impact on the vacuum degree of the pump, should often pay attention to, the new pump use requirement in new oil at a time, around 200 h after the general pumping about 1000 ~ 1500 h dry gas change new oil, with gas, steam ejector must take into consideration the shorten the oil change period.

(15) to replace the new open vacuum pump oil first run 30 min, make the oil diluted and stop pump, screw to drain plug, turn the pump impeller, makes the pump chamber dirty oil all let out, and then from the air inlet into the new 300 ml of oil continues to turn the pump wheel turn 5 ~ 8 of internal cleaning, so for 2 ~ 4 times, to put the net oil after cleaning, fitted with a drain plug, then from the lubrication oil injection pump oil to the center, oil plug screw on.

(16) if the pump is not used for a long period of time, the dirt shall be cleaned in advance, coated with anti-rust oil, and the rubber cover at the inlet and outlet shall be sealed to prevent the dirt from falling into the pump.

(17) if the vacuum pump work a long time, the use of time, change new oil pump can not meet the use requirement, must be for maintenance and cleaning of parts, application of advanced gasoline or anhydrous alcohol, do not use kerosene. Pay attention to dredge all inlet holes when cleaning. After cleaning, it must be dried before assembling. During installation, it must not be installed leakage, and it should be installed in the original position. Only mechanical vacuum pump oil is allowed to be lubricated in the transmission part.

(18) the loading of iron chips, sand and dust is strictly prohibited.

(19) for all fasteners should be tightened, are not allowed to have loose phenomenon, after the assembly, rotary pump with the hand wheel, should be no weight and block phenomenon, assembly should be checked after commissioning, commissioning time commonly 4 to 6 h does not appear rushing sound, etc., check measure the vacuum degree, conform to the standard rear can use formally.

(20) this pump is the basic equipment used for vacuum extraction of gas from the sealed container. It can be used independently, and can also be used as pre-stage pump and pre-pump for various kinds of high vacuum system.

(21) the pump inlet shall not be opened continuously in the atmosphere for more than 3 minutes.

(22) within 5 ~ 40 ℃ environment temperature and inlet pressure under the condition of less than 1330 pa, allow the pump work continuously for a long time.