Wuxi Guanya Refrigeration Technology co., ltd

Basic maintenance of high and low temperature refrigeration circulating pumps

Properly perform the sequence of opening and closing of the high and low temperature refrigeration cycle pump group to ensure normal operation after the host is started. Note that the condenser heats up well, otherwise the high temperature protection device of the high and low temperature refrigeration cycle pump group will stop and even cause malfunction due to the condensing temperature and the corresponding condensing pressure being too high. The cold water in the evaporator should be circulated, otherwise the cold water temperature will be low, the cold water temperature protection device will stop, or the low temperature protection device will stop due to the evaporation temperature and the corresponding evaporation pressure being too low, even leading to the evaporator. Cold water freezes and damages equipment.

Therefore, the boot sequence is: (must be strictly observed) Cooling tower fan on → cooling water pump on → cold water pump on → high and low temperature refrigeration cycle pump group. The shutdown sequence of the high and low temperature refrigeration circulating pump set is: (must be strictly observed) The equipment group stops → the cooling tower fan stops → the cooling water pump stops → the cold water pump stops. When the machine is shut down, the equipment group should be shut down half an hour before leaving work. The cold water pump is shut down after work, which is conducive to saving energy, avoiding downtime and protecting the unit. Before running the high and low temperature refrigeration cycle pump refrigeration cycle, make sure that the heating cycle pipe valves are all closed.

Maintenance of high and low temperature refrigeration circulating pumps is indispensable. At the same time, the operator needs to have certain operational knowledge of the equipment and will not find operational faults.

Related News
Related Products
  • Water Cooled Chiller

    Water Cooled Chiller

    January 11, 2018Temperature ranges from - 5 ~ - 150 ℃, can meet different temperature; Adopt environmental protection refrigerants; Famous brand semi-closed piston compressor, semi-closed bipolar piston compressor, semi-hermetic screw compressor, main brand are BOCK.view
  • Single Fluid Heat Transfer System SR

    Single Fluid Heat Transfer System SR

    April 10, 2018Working temperature range from -25℃to 200℃, other temperature range need to set to the widest temperature range(-50℃to 250℃) Centralized control of 2~20 reactors, each reactor's and jacket temperature can be set independently. One system control multipleview
  • Reactor Temperature System ZLF

    Reactor Temperature System ZLF

    April 10, 2018A set of cooling heat exchanger, heat exchanger, through proportional adjusting valve control cold heat into the heat exchanger, then through the uniform medium input to the reactor jacketed to do heat exchange and temp. Control, system has inside expansiview
  • Low Temperature Chiller

    Low Temperature Chiller

    April 10, 2018Low Temperature Cooling Chiller LT model: LT-5018N,LT-5040N,LT-5062N,LT-5090N,LT-50A1N,LT-50A2N; Medium Temperature Range: -45℃~30℃. ASET multifunctional controller, control outlet temperature of water tankview
  • Wafer Test Chiller

    Wafer Test Chiller

    February 28, 2019-45℃~+200℃ 2.5kW~25kW ±0.3℃view
  • Chip Test Heating Cooling System

    Chip Test Heating Cooling System

    February 28, 2019Temperature control range:-85 ° C ~ 200 ° CPower range:2.5kW~25kWTemperature control accuracy:±0.3°CModelTES-8525WTES-8555WTES-85A10WTES-85A15WTES-85A25WTemp. Range-85℃~200℃-85℃~200℃-85℃~200℃-85℃~200℃-85℃~200℃Heating P...view
products
Contact
Tel: + 86 18751546043
E-mail: sales@cnzlj.com
Add: No.203, Hongyun Road, Hongshan Street, Optoelectronics Park, Xinwu District, Wuxi City, Jiangsu Province, China
code chat