The most complete vacuum pump and maintenance methods!

Vacuum pump is the use of mechanical, physical, chemical or physical and chemical methods of pumping the container was evacuated to obtain the vacuum device or device. In the popular sense, vacuum pumps are devices that use a variety of methods to improve, create, and maintain a vacuum in a confined space. According to the working principle of vacuum pump, vacuum pump can basically be divided into two types, namely, gas capture pump and gas transfer pump. It is widely used in metallurgy, chemicals, food, electronic coating and other industries. Next Xiaobian introduce you to the most complete use and maintenance of vacuum pump! The most complete use and maintenance of vacuum pump! First, the use of a vacuum pump, over 70 degrees. To the determination of dry pumping speed by the more complicated, generally do not check. 2, need to pass through the mechanical vacuum pump cooling water, cooling water should be passed before the boot, and then start. Cooling water outlet temperature should not exceed 30 degrees. 3, continuous vacuum pump and pumping system should be as short and thick pipe, the pipe diameter should not be less than the general vacuum pump inlet diameter, in order to avoid drag by the dry pipe and affect the pumping rate. 4, in order to maintain the cleanliness of the workroom, which is conducive to the health of the staff, the use of skin to direct the exhaust gas to the outside. 5, the vacuum pump is not working or the ambient temperature is low for a long time, may cause difficulty in starting, then the vacuum pump should be made through the exhaust port of the atmosphere, with abundance of rotating pulley (not connected to the power supply into the vacuum pump to rotate a few weeks and then start. The vacuum pump, can continue to move the motor several times, the vacuum pump cavity into the tank of oil, you can start .If not, radiation heating or infrared light can be directly heated to the vacuum pump until it can move .6, before use, Check the mechanical vacuum pump oil to the window of the oil line position.At the same time, you must test the motor pulley rotation direction.Observer is the pulley, the pulley should be rotated clockwise, if the reverse rotation, the phase power can be any two Phase joint swap can be.Otherwise, rotary vane vacuum pump can not afford the exhaust but will pump the oil and the atmosphere into the pumping system, resulting in serious pollution .7, after the work should be closed high vacuum valve, off Low vacuum valve. Rotate the vane vacuum pump and then deflate it (if using an electromagnetic vacuum deflation valve, it can deflate automatically) to prevent the oil from returning to the vacuum System, and finally cut off the total power supply. No water. 8, pay attention to prevent hard material (metal shavings, glass fragments, etc.) fall into the vacuum pump, scratching the moving parts of the vacuum pump vacuum pump to stop using it should be stored in a dry Of the environment, and the exhaust port and exhaust blocked to prevent dirt fall into. 9, Demolition and assembly of mechanical vacuum pump must be careful not to bump the sealing surface, do not lose the screws, clean dry parts earned to be dry or For the dry (the temperature should not be too high, the time should not be too long. Assemble the vacuum pump wall with a small amount of grease, as far as possible to remove the dead space, the oil line to Huai, excessive fuel injection. Second, the vacuum pump rotary vane vacuum pump Long-term use, there will be a vacuum drop, leak oil seal, vacuum pump rotation stagnation, or even "stuck" oil serious pollution, vacuum pump chamber rusty, rotary vane has a large percussion sound, the vacuum chamber cavity into hard objects Scratch the vacuum pump chamber, resulting in overheating of the vacuum pump and other anomalies, then the vacuum pump must be washable. The steps are, 1, cut off the power, the vacuum pump removed from the vacuum system, 2 Gravity method or pressure method will drain and collect dirty oil, so as not to pollute the environment; 3, remove the belt, the belt wheel key (two-stage rotary vane vacuum pump contains the belt); 4, first demolition of the vacuum end, remove the back end Cover, and then remove the low vacuum rotor, rotary vane and spring; 5, the front cover removed, remove the high vacuum rotor, rotary vane and spring, etc. 6, remove the mirror, exhaust valve, exhaust cover, etc .; , The removal of the metal parts thoroughly cleaned with gasoline and dehydrated with alcohol. Rubber parts can be 15% sodium hydrosulfide water boiled to the oil. For burrs or rusty parts available Whetstone or metallographic sandpaper Lightly ground to remove rust and burrs, cleaned parts must be dried, 8, assembly, the first post-stage, the spring, spin-off into the rotor, and then into the vacuum chamber. Front cover. Re-install the dowel pin. Tighten the screws symmetrically. After assembly, should ensure flexible rotation. Equipped with front rotor and rear cover, and then install the exhaust valve (exhaust valve flap should be close to the valve seat ) And other pieces, such as gas-town devices. Maintenance vacuum pump Note: 1, should regularly check the oil level is low dry oil marking. Such as low dry oil marking, it should be timely refueling, apricot will affect the vacuum degree of the vacuum pump. The amount of oil should not be too much, otherwise it will cause difficulty in starting, fuel injection and other issues. 2, should always pay attention to whether the normal operation of the vacuum pump, with or without special sound, whether the machine is overloaded, motor product vacuum pump open temperature is too high. 3, water-cooled vacuum pump, cooling water should be prevented from interruption, vacuum pump temperature shall not exceed 70 degrees. If the ambient temperature is 5 degrees Celsius low, the cooling water should be put in the vacuum pump after shutdown to prevent the vacuum pump body cracking. 4, the vacuum pump should be kept clean, vacuum pump can not be placed on other objects. 5, pay attention to belt tightness apricot appropriate, if necessary, should be adjusted or replaced. 6, should be changed regularly every year 1 to 3 times the vacuum pump oil). Vacuum vacuum melting mechanical vacuum pump, oil may be more than a month. This is a dry vacuum pump in use, the vacuum pump oil will be gray, moisture or other dirt pollution or soap, carbonation, affecting the performance of the vacuum pump, therefore, the need for regular oil changes according to specific circumstances. (Editor: Li Juan QQ:) Recommended reading: Acting purchasing the top ten brands of vacuum pumps Xiamen 2016 CIFIT

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