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一般的电热卧式圆形压力蒸汽消毒器电气控制系统,其压力控制由K_1(也可由K_2或K_3控制,视所需压力而定)及带波纹管的压控盒完成。其压力控制原理是:当消毒器蒸汽压力升高,达到或超过预定压力时,波纹管自动顶开开关K_1(或K_2,或K_3),切断交流接触器J_1的电源,通过J_1切断加热器RH的电源,消毒器停止加热;当蒸汽压力低于预定压力时,由于波纹管的收缩,K_1便接通J_1,使加热器RH加热。如此反复,便保持了消毒器蒸汽压力的恒定。这种压力控制系统的压力控制分为三档(0.7kg/cm~2、1.1kgf/cm~2、1.4kgf/cm~2),在生产过程中,不易调准;压控盒结构复杂,焊接要求高,容易漏气,
The general electrical horizontal pressure steam sterilizer electric control system, the pressure control by the K_1 (K_2 or K_3 can also be controlled, depending on the pressure required) and the corrugated tube pressure control box to complete. The pressure control principle is: when the sterilizer steam pressure rises to meet or exceed the predetermined pressure, the bellows automatically open the switch K_1 (or K_2, or K_3), cut off the power of the AC contactor J_1 by J_1 cut off the heater RH Of the power supply, the sterilizer stops heating; when the steam pressure is lower than the predetermined pressure, due to the contraction of the bellows, K_1 turns on J_1 to heat the heater RH. So repeatedly, then maintain a constant sterilizer steam pressure. The pressure control system pressure control is divided into third gear (0.7kg / cm ~ 2,1.1kgf / cm ~ 2, 1.4kgf / cm ~ 2), not easy to adjust in the production process; pressure control box structure is complicated, High welding requirements, easy to leak,