How to maintain the walk-in high and low temperature alternating humid heat laboratory refrigeration system

The refrigeration unit of the walk-in high and low temperature laboratory is composed
of several major components such as refrigeration unit, cooler, throttle valve components, and air conditioning evaporator.

The refrigeration unit is the driving force of the refrigeration circulation system; The cooler uses natural environment water cooling substances to bring the heat generated by the ultra-high pressure cold steam from the cold refrigeration compressor, so that the ultra-high pressure refrigerant steam water cools and colds into the refrigerant liquid under the pressure of normal temperature
.

Throttle valve components for pressure relief; Air conditioning evaporators work on heat exchangers
.

Out of its necessity, people should do a good job in the usual maintenance work
.

Walk-in high and low temperature laboratory refrigeration unit maintenance measures: 1.
The walk-in high and low temperature laboratory proposes to place it at a temperature of 8 °C ~ 28 °C, and for laboratories that do not have this standard, a moderate air conditioner must be configured
.

2.
Unremitting full-time personnel technical professional management methods and maintenance, there are standard enterprises to regularly send full-time personnel to the supplier processing plant to learn training, in order to get the technical professional maintenance, maintenance of the work experience and work ability
.

3.
Fix the fixed and do not move every four months to clean up the cooler many times, for the refrigeration compressor to choose air-cooled water cooling, to maintain the cold suspect centrifugal fan on time and carry out decontamination and ash removal of the cooler to ensure excellent natural ventilation and heat transfer characteristics
.

4.
For the refrigeration compressor to choose water cooling and hot water cooling, in addition to ensuring the leakage of working pressure and leakage temperature, but also to ensure the relative total flow, and on time to clean the inside of the cooler scale cleaning to obtain its continuous heat transfer characteristics
.

5.
Walk-in high and low temperature laboratory should also clean the air conditioning evaporator on time, because the cleaning level of other test products is not the same, under the forced wind circulation system effect, the air conditioning evaporator is cohesive with many small dust particles, etc.
, so it is necessary to clean up
on time.

6.
To clean the waterway and air humidifier, if the waterway is not smooth, the air humidifier will cause the air humidifier to burn empty, which can destroy the air humidifier, so it is necessary to clean the
waterway and air humidifier on time.

7.
It is necessary to persistently set the temperature around the working temperature after each experiment, work for 30 minutes and then disconnect the switching power supply, and then wipe the personal studio cavity
.

When the long-term shutdown is not applied, the goods should be plugged in on time every ten days, and the plug-in time cannot be less than 1 hour
.

Common fault analysis and resolution of walk-in high and low temperature laboratories: Because the price base of the walk-in high and low temperature laboratory is composed of
several system software for electrical equipment, cooling and mechanical equipment.

Therefore, if there are problems in machinery and equipment, it is necessary to comprehensively carry out regular inspection and comprehensive analysis
of all machinery and equipment system software.

Usually, the whole process of specific analysis can be removed first, that is, after the external elements are removed first, the essential common fault conditions are dissolved
by the system software of the machinery and equipment.

The system can analyze and distinguish comprehensively, or you can also use backwards to search for common faults
.

First search according to the electrical equipment wiring method is not very good circuit system, search is not the problem of refrigeration units, before figuring out the common fault causes, do not blindly follow the trend to disassemble or disassemble and replace spare parts, in order to prevent unnecessary inconvenience
.