The operating conditions and parameters of the cooling system of the industrial water chiller affect the chiller greatly. The main purpose of adjusting the main parameters of a refrigeration system is to control each parameter so that it can operate under the most economical and reasonable conditions. Especially with respect to the larger power screw chiller, debugging is not done well, will directly affect the cooling effect later.
(1) charging of refrigerant. At present, the refrigeration unit in the factory are generally required is filled with refrigerant, on-site installation, inspection if no accident damage, you can directly open the valve (you should read the instructions in transit units on the valve in the closed state general commissioning). If it is found that the refrigerant has been leaking end or insufficient, should first find the leaks and eliminate the leakage phenomenon, and then press the cold water machine instructions, with the stipulated quantity of refrigerant refrigerant. Attention should meet the technical requirements.
(2) some screw chillers shall be charged with refrigerant at the user's site, and the refrigerant charge and refrigerant grade shall be specified. Insufficient refrigerant charge can lead to insufficient cooling capacity. Excessive charging of the refrigerant will not only increase the cost, but also adversely affect the energy consumption of the industrial chiller.
(3) adequate refrigerant should be prepared prior to charging refrigerant to industrial chillers. When charging, it can be filled directly from the special filling valve. Because the system is in a vacuum state, and the refrigerant cylinder pressure, when the valve is opened (should first use of refrigerant blown connecting pipe in the air, in order to avoid the air into the unit, the unit performance effect), the refrigerant from the cylinder rapidly flow system, charging is completed, should be the first liquid filling valve is closed. Then remove the connecting pipe.
(4) commissioning of refrigeration system. After the charging of the refrigerant (if refrigerant is needed), the load can be debugged. In recent years, screw chillers in terms of performance and electrical control have made considerable progress, many screw chillers can do simulation test of the main action of electric control system in the official before the start, the host unit without electricity, electricity control system, and then through the machine electric control system of the group internal setting unit to detect whether the normal operation, assembly. If there are any problems in the electrical control system, it can be solved in time. Finally, through the host power supply for debugging.
For more information, please contact us: Mr. Wang, 13923464030, Tel: 0755-81715045 or login at our website: http://www.szdxj.com