Ammonia refrigerant how to properly take out?

in the maintenance process of refrigerant.com/refrigerant-gas' target='_blank'>refrigerator, if from compressor exhaust valve to the accumulator outlet valve parts failure in the system needs repairing, for reducing environmental pollution and waste, you should remove the refrigerant storage to another container. In addition, the refrigerating plant if discontinued for a long time, in order to prevent leak, or need to change the reason such as the refrigerant, also need to take out the refrigerant.

remove ammonia refrigerants right steps are as follows:

first of all should be ready to all of the tools before operation and emergency supplies, such as ammonia tank or a certain amount of ammonia, the scale, connecting pipe, locksmith tools, gas masks, rubber gloves and first-aid medicine and so on. Then adjust the valves in the system, close to the low pressure equipment and the evaporator for hydraulic valve, the low pressure system of liquid ammonia pump start compressor and condenser and the high pressure accumulator. To put on the scale ammonia bottle, with high pressure rubber tube ( Pressure in more than 3 mpa) Cooperate with pipe joint will stand empty ammonia bottle received ammonification of ammonia pipe, connection should be strong. Ammonia valve slightly open ammonification site, check with ammonia pipe and the rigor of joint. Open the ammonification site pressure reducing valve, ammonia tank or ammonia bottle of decompression, and then close the valve, open put ammonia valve to put ammonia ammonia bottle or ammonia tank.

second will pass ammonia ammonia tank weighing, normally should not exceed 60% of its capacity. When added to the specified number, timely closed ammonia cylinder valves and add on the site's ammonia liquid valve, open the ammonification site pressure reducing valve, by putting the liquid ammonia tube time, close the valve, slowly remove the cylinder connecting pipe, change into new bottles. Ammonia tank reaches the number, the first shut down the ammonia tank valve, valve open ammonification site, after the net ammonia liquid smoke, close the valve, remove the connecting pipe. If the compressor suction pressure is too low, can open the refrigerator door, make the library of high temperature, ammonia evaporation increased, the machine of inspiratory pressure can be increased, low pressure systems can smoke to zero. 05MPa( Gage pressure) 。 After downtime, if the pressure, to boot time. In order to facilitate the ammonia condensation, can make the condensing pressure, for example, can be controlled in 1. 3 to 1. 4MPa( Gage pressure) In between.

in the high pressure accumulator level below 5%, ammonia liquid ammonia bottle can't access or ammonia tank, pressure and low pressure system is less than 0 mpa ( Gage pressure) Above can be treated as end of ammonia. Remaining within a small amount of ammonia can into the water bucket ready or pool condenser.

in addition to the above method, due to the structure characteristics and cannot extract ammonia refrigerant compressor itself ( Semi-closed, fully enclosed) , you have to use another one refrigerating compressor to assist with the task of refrigerants.

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