信息来源: http://www.tzmpmo.com 时间:2016-4-15 13:25:56
(1) refrigerant. Now, saline water machine in the factory usually according to the rules of filled with refrigerant, on-site after installation, check the appearance if an undetected accidental injury, directly open the valve should be first reading of the factory according to the descriptions in transit, the valve unit usually in closed) commissioning. If you find that the refrigerant has been leaking after may lack, should first find out the leak and eliminate leakage phenomenon, then according to the commodity based on the specification request, adds the trademark rules of refrigerant. Note that the refrigerant filling quantity should be in conformity with the technical requirements.
(2) some units need saline at the user's site of refrigerant, the refrigerant filling quantity of refrigerant and grade must be in accordance with the rules。 The refrigerant charge will lead to lack of cooling capacity lack。 The refrigerant charge too much, will not only increase the cost of operation, and energy consumption may adversely affect。
(3) in the refrigerant, should meet the pre prepared refrigerant. When charging, can be directly from the special liquid filling valve. Because the system is in a vacuum condition, cylinder refrigerant and system pressure, when the valve is open (should first with refrigerant blowing air connection tube, avoid air into the unit, the impact of functional units), the refrigerant agile by cylinder flow system, after filling, the liquid filling valve is closed, to remove connecting tube.
(4) debugging of refrigeration system. After the refrigerant (if need refrigerant), can load debugging. Because in recent years, saline water machine in terms of performance and electrical control have great progress, many saline water machine before the official start to of main electric control system simulation of the action side inspection, that unit is not energized, the control system is energized, and then through the internal generator set, the electrical control system of the unit were detected, components can work normally. What if the problem of electronic control system, timely treatment. Finally, through the host power supply, debugging. In the debugging process, should pay special attention to the following points:
1) check valve in a refrigeration system and is not in the normal open state, especially the exhaust valve not closed。
2) open the cold water valve of condenser cooling water valve and an evaporator, cold water and cooling water flow should fit the requirements.
3) should pay attention to the supply voltage before starting the investigation unit is not normal。
4) in accordance with the manufacturer supplied on manual engine group.
5) when the unit is started, according to the operation manual, check whether the normal parameters of the unit.
6) according to the manufacturer to provide the screw type chiller operation data records list, the data of screw chillers stop records, especially some of the main parameters must be clearly documented.
7) in the operation of the brine unit, should pay attention to the tightening machine, download the body can work properly.
8) should be accurately on the basis of safety protection equipment installed in a refrigeration system, such as high and low voltage protection device, cold water and cooling water water flow switch, safety valve and other equipment, if damage should be promptly replaced.
9) if the abnormal situation occurs, the unit should be stopped immediately.
Before the refrigeration system is debugged, must do well the air conditioning system interior clean and dry work. If the previous work does not seriously stop, in the commissioning period will increase a lot of work, and will bring many hidden dangers to the operation of the refrigeration installation.