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Air tightness detection of hotel cold storage

2017-02-14 10:02:00
On the hotel cold storage refrigeration equipment air tightness detection is very important, oh, the specific hote ...
On the hotel cold storage refrigeration equipment air tightness detection is very important, oh, the specific hotel cold storage air tightness measurement how to detect it?
(1) first, the exhaust valve stem clockwise to the end, so that the system lost circulation in the compressor outlet.
(2) counter clockwise rotation of exhaust valve with multi channel fine tooth screw, the exhaust port is communicated with the atmosphere.
(3) open all valves in the system.
(4) contact short circuit voltage relay, temporary protection function (after the restoration must be removed).
(5) start the compressor, so that the system of air into the atmosphere (the compressor suction valve should be opened slowly, so as not to exhaust gas in the system too late, resulting in high exhaust pressure caused by high pressure protection, etc.).
(6) to observe the vacuum meter low end, until the vacuum pressure gauge readings to --0.1MPa, appropriate time after the exhaust stop valve and screw rotation exit.
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