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Wysłany: Sob 10:24, 26 Lut 2011
Temat postu: air jordans Air separation technology questions (f
,
air jordans
Air separation technology questions (four)
a), the heat transfer deterioration (nitrogen control sweating, or frosting,
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, hot-side temperature increase), under the Tata pressure (under the tower is easy to overpressure in the closed valve.) Small oxygen machine oil lubricated air compressor with the majority, the last stage out of the air contains water vapor, which is molecular sieve adsorption properties were greatly influenced and is closely related with the operating factors, should be strictly renewable or blowing required In addition. Otherwise, once the excessive carbon dioxide and moisture content of air into the tower, then the heat exchanger, throttle and will soon be reflected within the distillation column. According to my calculation, as long as the air into the fractionating tower contains (20 ~ 30) x10 of carbon dioxide, the pressure of the process, the carbon dioxide will be lower in the heat exchanger to freeze. Carbon dioxide and then through the throttle valve to enter the tower, therefore, the upper and lower plates are frozen carbon dioxide Tata possible. With the inflow of liquid carbon dioxide will be liquid oxygen in the condensate evaporator. Apart from blowing the valve at the sample, if the naked eye can be observed in the solid block of white billow, after a layer of liquid oxygen evaporated to stay in the bottom of a white powder, and touched a finger to vaporize,
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, and this is solid carbon dioxide. If moisture, water droplets visible finger there. At this time should be carefully examined purifiers, check the water separator at all levels without blowing pipe clogging. Operation, according to the provisions of blowing separator, gas inlet temperature and then cast automatically, to ensure that its higher than 300 . China Air Separation Equipment Corporation (retired) Chen Xishun 4. Q: What piston compressor operation points? A: piston air compressor operation points: 1. Before you start (1) Open cooling water inlet valve, Check the water supply at all levels of cooling the cylinder is normal. (2) Check the crankcase oil level is at the specified location. (3) Check whether the import control valve is closed, air compressor outlet vent valve is open, valve is closed to send . (4) electrical equipment is in the start position. (5) Check the ground screw,
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, screw any loose coupling. (6) the number of disk flywheel moving forward, check whether the stuck flywheel. 2. Start steps (1) power to start the air compressor, close attention to oil pressure is normal, if there is not a normal sound. (2) If all goes well, open the inlet valve to fully open. (3) the gradual exit off the small vent valve, air press the normal load operation, it can slowly open the valve to send gas. 3. normal operation of the maintenance (1) regular checks of oil, at all levels of pressure, inlet and outlet temperature, oil temperature, cooling water temperature, cooling water operating parameters such as whether the pressure within the limits prescribed. (2) Check the voltage, current, power, motor temperature is normal. (3) whether the normal time to listen to the sound operation of the pipeline, whether the valve leakage. (4) every a water half an hour blowing every 1 hour record time. 4. Parking (1) gradually give off a small valve,
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, open the vent valve in time to prevent overpressure. delivery valve is fully closed, the vent valve should be fully open. ( 2) Press the stop button, close the import control valve after the shutdown. (3) shut down after half an hour off the cooling water levels in winter, cooler at all levels should be drained, cylinder, oil cooler water. Hangzhou Oxygen Machine Group Co. Company (retired) Ye Binan sale of idle air separation unit may be available for purchase at my idle air separation plant and unit: (1) 3Z3.5-1.67/150 type oxygen compressor 4. which 0328 3-sets: Su oxygen 2 sets (new), Handan Iron and oxygen l Taiwan (8 as new); 0345-type l Taiwan, Hang oxygen (new). the oxygen compressor can be modified according to user requirements for the water lubrication of high-purity nitrogen, pure argon, carbon dioxide compressor purity of 99.9995% or more. more membrane press, high output, low energy consumption and easy maintenance. (2) 50m / h oxygen plant l sets of air separation plant in Sichuan in 1987 production, almost new. ( 3) 150m / h oxygen generator sets l, Su oxygen production, gently used. (4) 350m / h oxygen plant a set, Kazakhstan oxygen production, installation and commissioning, after virtually no use. (5) 1000m / h oxygen Machine 2 sets, Hangzhou oxygen production, Qi Chengxin. (6) 330m / h medium pressure oxygen compressor 2 sets, 550m / h 2 sets of medium pressure oxygen compressor. (7) 10,30 m 'in several pressure oxygen tank . (8) for user equipment disassembly, transport agent cheap return; equipment modification, such as: medical oxygen reconstruction and equipment installation and commissioning, to ensure timely and out of oxygen! If you need all kinds of idle air separation unit or ASU, please call letter contact. Contact: Tel :0519 strict new cryogenic technology -6752270013861153007 2003 1 CryogenicTechnologyNo12003. 55 ·
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