What are the factors that affect the air compressor exhaust?
With twenty years of technical experience of air compressor in Shanghai denair compression machinery Co. Ltd. Chen Gong told us: the influence of airThere are many factors in the exhaust of the press, which are roughly divided into four major aspects: speed, leakage, cooling effect, and suctionState.
1, the air compressor exhaust volume usually refers to the unit time, air compressor, the last stage of the exhaust gas converted to the first intake of the pressure and temperature of the gas volume value.2, the influence of inlet pressure Ps on the existing air compressor, its exhaust volume decreases with the intake pressure and decreases with the increase of intake pressure. The current environment of North China Pharmaceutical Huasheng Company Limited by air suction filter into a suction chamber, the suction, compression, cooling into the two stage. Taking into account the exhaust pressure of centrifugal compressor is 0.2MPa, and through F8 filter, if the 0.2MPa of the compressed air as a suction pressure, connected with the ZW -6/7 type piston type air compressor suction, which improves the suction pressure of air compressor, thereby increasing the exhaust volume of air compressor.3, the influence of inlet temperature T1 on the intake temperature is mainly achieved by the effect of intermediate cooling. Although the improvement of cooling effect can increase the intake, it can not meet the requirement of increasing the exhaust capacity greatly. The influence of the speed of N increase speed can improve the capacity, can achieve the goal, but the shaft power of screw type air compressor will increase a lot, the need to replace the motor; at the same time, air compressor operation condition deteriorates, valve, piston ring, packing will shorten the life, security is not guaranteed.4, the influence of clearance volume, the cylinder diameter decreases, the clearance volume can improve the exhaust capacity, but it can not meet the requirements of greatly improving the exhaust capacity.5, the impact of leakage, for perennial disrepair and parts damaged machines, leakage increases, the impact of its exhaust volume is very serious, but obviously the current situation does not belong to this.
When the air filter is blocked or the resistance increases, the suction pressure of the compressor is reduced. When the outlet pressure is constant, the exhaust is reduced. The obstruction or resistance of intercooler is increased, which results in less exhaust. The management of air separation equipment is blocked, the increase of the resistance or the failure of the valve cause the compressor to increase the exhaust pressure, resulting in the rise of the pressure ratio and the decrease of the exhaust. The seal is not good, resulting in gas leakage, resulting in less exhaust. The cooler leakage, if a leakage of cooling water into the gas side channel, and is entrained into the impeller and diffuser, causing fouling, clogging the air flow is reduced, and if the two or three level leakage, compressed air will leak into the cooling water run, will reduce the amount of exhaust gas. The pressure of steam turbine (power frequency or voltage drop), caused by speed decreased, reducing the amount of exhaust gas. And any level of suction temperature, gas density decreases, can also cause the suction decreases
