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關(guān)于食品冷庫膨脹閥常見故障的分析
The common malfunction analysis about food cold storage expansion valve
1、膨脹閥針閥生銹，動作不靈活；
1, expansion valve, needle valve rust, action is not flexible;
2、膨脹閥節(jié)流孔被雜物堵塞；
2, expansion valve throttle orifice is sundry jam;
3、感溫包和蒸發(fā)器管包扎松動，不能很好的起感溫效果；
3, thermal bags and loose binding of evaporator, heat very good effect;
4、感溫包內(nèi)充填介質(zhì)泄漏，造成膨脹閥關(guān)死，制冷劑不循環(huán)；
4, thermal bags filling medium leaking, causing expansion valve shut up, refrigerant cycle;
5、感溫包外的絕熱膠帶松脫，使包內(nèi)壓力增大，造成閥開度過大；
5, thermal insulation tape loose outside the package, make the pressure inside the package, cause the valve to spend;
6、系統(tǒng)中有水份，在膨脹閥節(jié)流孔處凍結(jié)成冰，堵塞膨脹閥通道。
6, in the system with water, in the expansion valve throttle orifice freeze into ice, plug expansion valve passage.
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