A high-low temperature alternating heat and humidity tank with internal and external leakage in a refrigeration system. After repairing, can it maintain the normal technical indicators, how long is the follow-up life? This problem depends on the technical level of the maintenance personnel. Whether the maintenance plan adopted is reasonable, whether the quality of the replaced parts is qualified or not is related to many factors.
In recent years, many users have asked the author the same question: Our high and low temperature alternating heat and humidity chamber has been used for nearly 6 years, and now it is not cooled, is it life, and there is no repair value? Our company The high and low temperature alternating wet heat box was repaired several times in half a year, and now it is not cooled. I really don't want to toss it, I can only scrap it. How long does it take to recharge the high-temperature and low-temperature alternating wet heat box? The following questions are analyzed by the user for reference.
First, reducing the repair rate is the focus of maintenance
How to reduce the repair rate of high and low temperature alternating wet heat box is actually to ensure the quality of maintenance. The author believes that the following points should be noted during the overhaul process:
1. Correctly analyze and judge the location of the fault, and avoid blindly dismantling and unloading
For high and low temperature alternating humid heat tanks where the refrigeration system leaks, the evaporator, condenser, and anti-dew pipe (door frame pipe) should be pressed separately during leak detection. After the pressure is over, in addition to the soapy water inspection of each pipe joint, it is also necessary to check the service valve with soapy water, and also pay attention to the pressure fluctuation caused by the change of the outside air temperature before and after the pressure, to prevent somewhere due to the inspection valve. Air leaks or pressure gauges due to lower ambient temperatures. Misidentified as internal leakage of the system, causing trouble and adverse consequences for maintenance. For the occurrence of micro-leakage, the high-low temperature alternating wet box should be regulated for more than 24 hours.
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