The prelude of chiller supplement freon

cold water machine is a kind of tightening by steam or absorption cycle refrigeration effect of energy saving machine. One hundred million times called the chiller cooling water recycling machine, also called machine, cooling machine, refrigerator, water chiller, ice water machine, small cold water machine, industrial chillers, refrigeration units, low temperature cold water machine, laser machine, cold water due to the widespread application of the work, so according to work is not the same, its fitting also cannot be counted.

a lot of users in the process of using cold water machine, will find that a lack of vision of cold energy of cold water machine, a cool start to work after a period of time found that the drop in temperature, small make up today by three methods to distinguish whether cold media lack, then look for other elements.

a, current method: using clip-on ammeter monitoring the working current outdoor ( Contains tightening machine and electric current) , if the current value foundation in line with the nameplate rating of the nominal current, shows refrigerant fit; If is lower than the rating too much, the refrigerant is too little, should be added.

2, gage pressure method: the refrigeration system low voltage side pressure bump is related to how much refrigerant. In low-pressure valve connected to pressure gauge, refrigeration and air conditioning switched on at the beginning of the gage pressure drops, work more than 10 minutes, if the gage pressure steady at 0. 49 mpa dominate as normal.

three, query method: query the high-pressure valve near outdoor high-pressure pipe and low pressure valve of low pressure pipe near the condensation. General condensation pressure tube, and cold, if the low pressure tube and condensation, have cold feeling, controlled temperature is higher than high pressure pipe 3 ℃, refrigerant suit. If the low pressure pipe condensation, have warm feeling, then refrigeration dose lack, need to add; If condensation of low pressure pipe, or every time controlled tightening machine by 1 minute, low pressure pipe frost, after again into dew, explain too much refrigerant, to put off some.

the above three methods, in order to measure current and query the high pressure, low pressure pipe condensation situation is given priority to, combination table method, to determine whether to add refrigerant. Demand attention is, when the air conditioning refrigeration, outdoor fan must turn over, or around the evaporator air did not spread out in time, decreased evaporation temperature, evaporation pressure drop, read the table of small pressure, current is also small, constitute a miscalculation.

cold water machine is first applied to the plastic industry, plastic molding, injection molding, extrusion, blow bottle type, hot LiSu, mechanical work: skills, laser welding, mechanical machining, the machining, casting, electroplating, electronic work: surface treatment, electroplating, electrophoresis, medical equipment, electronics, circuit board production, electronic chip manufacturing, chemical industry and other work: chemical industry, papermaking, pharmaceutical industry, food processing industry, aluminum, aluminum alloy, produce tempered glass, coated glass, ultrasonic erase, jewelry processing, leather and fur processing, printing ink production, aquaculture.

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