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不凝性气体对盐水机制冷循环的影响及处理对策

信息来源: http://hqldsb.cn  时间:2016-12-02 14:32:24 

不凝性气体对盐水机制冷循环的影响及处理对策:这儿所说的不凝性气体,是指在冷凝压力下不能冷凝为液体的气体。不凝性气体通常积存于工业冷水机冷凝器和贮液器上部,因为它不能通过冷凝器或贮液器内的液体有些的液封往下传递。
The effect of non condensing gas on the refrigeration cycle of brine machine and the treatment strategy: the non condensing gas mentioned here refers to the gas which can not be condensed into liquid under the pressure of condensation. Non condensable gases are usually stored in the industrial chiller and the upper reservoir, because it can not through the condenser or the reservoir liquid inside some of the liquid seal is passed down.
不凝性气体的存在将使冷凝器内冷凝面积削减,冷凝压力升高,致使制冷压缩机排气压力、温度升高,压缩比功添加,制冷系数降低,制冷量削减。那么盐水机制冷体系中不凝性气体来源于哪里呢?这儿举例说明,比方说在体系检修时带入的空气,有些润滑油、制冷剂发生的分化,制冷压缩机负压时低压有些渗透进来的空气等。
The presence of non condensing gas will reduce the condensation area of the condenser, the condensation pressure is increased, the exhaust pressure of the refrigeration compressor, the temperature is increased, the compression ratio is increased, the coefficient of refrigeration is decreased, and the cooling capacity is reduced. So where is the non condensing gas from the salt water chiller system? Here for example, for example, when the system is brought into the air, some of the oil, refrigerant differentiation, refrigeration compressor when the pressure of low pressure some penetration into the air, etc..
而咱们在实践应用中,是能够采纳一些相应的措施削减不凝性气体的影响:
In practical application, we can adopt some measures to reduce the effect of non condensing gas:
1、比方小型分体式盐水机在设备时,靠室外机内原有的制冷剂压力扫除衔接管路中的不凝性气体;
1, for example, small split type brine machine in the equipment, by the outside of the original refrigerant pressure to eliminate the convergence of the pipeline in the non condensing gas;
2、给工业冷水机制冷体系冲灌制冷剂之前,必须先进行抽真空处理;
Before the 2, industrial chiller refrigeration system to make refrigerant must be washed, vacuum treatment;
3、给中、大型冷库制冷体系中加装空气分离器,定时由空气分离器扫除不凝性气体;
3, to the medium and large cold storage refrigeration system installation of air separator, the timing of the air separator to remove non condensing gas;
4、在一些中央空调体系中,因为运用的盐水机是在高真空度下作业,如溴化锂吸收式制冷机、运用R123的离心式制冷机等,因而,在体系中加装抽气设备,及时抽出盐水机中的不凝性气体,保持制冷体系的高正空度。
In 4, some of the central air-conditioning system, because the saline water machine is the use of homework in high vacuum condition, such as the use of R123 type lithium bromide absorption refrigerating machine, centrifugal refrigeration machine, therefore, pumping equipment installed in the system, timely extraction of non condensable gas in the saline water machine, the refrigeration system to keep high empty.

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