NEWS

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NEWS

What is the effect of excessive temperature when industrial chillers are exhausted? How to solve?

PubDate:2017-03-22Author:Drying heat pumpSources:Refrigeration networkViews:4014


First, the effect of excessive exhaust gas temperature


1 Excessive exhaust gas temperature will cause the efficiency of the condenser of industrial chillers to decrease.


There are many reasons for the exhaust gas temperature being too high. For example, the flow rate of the cooling water is not enough, the water temperature is too high for a long time, and the exhaust gas temperature is too high. Once the exhaust temperature of the compressor is too high, the work efficiency will be problematic. After the high-temperature gas is discharged to the condenser, the condenser cannot completely cool the refrigerant, and liquid accumulation may occur. After a long period of use, the working efficiency of the condenser will decrease. Accordingly, when the working efficiency of the condenser decreases, Affect the working efficiency of the compressor.


2 low inspiratory pressure and high inspiratory heat


When the exhaust gas temperature is too high, the suction temperature will become higher accordingly, and because the compressor discharge temperature is higher, it can be inferred that the compressor compressor is relatively large, because the suction pressure is definitely lower when inhaling. A solution to reduce exhaust gas temperature and exhaust pressure can be achieved by reducing the compression ratio.


Second, the method of solving the exhaust gas temperature is too high


According to the above-mentioned effects and causes of excessive exhaust gas temperature, it can be known that in order to reduce the exhaust temperature of the industrial chiller, the compressor can be cooled, and the coldest bacteria suggest that the following methods can be selected to solve the problem.


1 Increase the cooling water flow and the heat dissipation and ventilation of the water tank and water tower.


The water tank of the air-cooled industrial chiller and the cooling water in the cooling tower of the water-cooled industrial chiller exist for the condenser to reduce the heat exchange, which can take away the heat generated by the compressor work, if the cooling water flow and the wind can be ensured. The cooling and ventilating capacity of the cold industrial chiller water tank and the water-cooled industrial chiller water tower can keep the cooling water temperature within a limited range, thereby maximizing the cooling of the compressor.


2 directly reduce the exhaust temperature of the refrigeration compressor


The so-called direct reduction of the exhaust temperature of the compressor can start from reducing the compression ratio of the compressor and reducing the load. Although reducing the compression ratio will make the efficiency of the compressor lower, it can solve the problem that the compressor exhaust temperature is too high. problem.


3 rational use of refrigerant


At the same evaporation temperature and condensation temperature, different types of refrigerants have different exhaust temperatures. In addition to the common R22, there are refrigerant types such as R134a. Users should add different refrigerants as required by industrial chiller manufacturers.