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
  • LNEYA Is Exhibiting At Achema 2018

    LNEYA Is Exhibiting At Achema 2018

    January 11, 2018​The LNEYA Group will participate in the ACHEMA -World Forum and Leading Show for the Process Industries,Frankfurt am Main, Germany.view
  • Approaching LNEYA 5 Main Products

    Approaching LNEYA 5 Main Products

    January 11, 2018Industrial Chiller:Industrial Chiller varies from dynamic temp. Special Chiller:Special Chiller consist of Multi-reactor chiller (TCU).Environmental Chamber:The test object is connected to a testing adapter. Industrial Freezer:Industrial freezer consist oview
  • The Analysis Of Ultra Low Freezer'S Price

    The Analysis Of Ultra Low Freezer'S Price

    July 4, 2018What are the characteristics and functions of ultra low freezer: 1. Ultra low freezer can prevent the precision of machine equipment from being influenced by the change of oil temperature in the proce...view
  • The Application of Cold Plate Freezer

    The Application of Cold Plate Freezer

    July 4, 2018The refrigeration system of cold plate freezer adopts secondary super-cooler technology with the rapid refrigeration and low limiting temperature. It uses imported brand name semi-hermetic piston comp...view
  • 2018 Automotive Testing Expo

    2018 Automotive Testing Expo

    September 11, 2018Automotive Testing Expo 9.25-9.27view
  • The Analysis Of How To Maintain The Low Temperature Circulator In Daily Life

    The Analysis Of How To Maintain The Low Temperature Circulator In Daily Life

    July 4, 2018Guanya is a leading role in heating cooling circulator. It provides the customers with proposal and technology of controlling the cold and heat, temperature control system with stable property, extend...view
Related Products
  • SLJ -110℃~-150℃

    SLJ -110℃~-150℃

    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
  • LT -45℃~30℃

    LT -45℃~30℃

    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
  • TES -45℃~250℃

    TES -45℃~250℃

    February 28, 2019-45℃~+200℃ 2.5kW~25kW ±0.3℃view
  • TES -85℃~200℃

    TES -85℃~200℃

    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 18751545184
E-mail: sales@cnzlj.com
Add: No.203, Hongyun Road, Hongshan Street, Optoelectronics Park, Xinwu District, Wuxi City, Jiangsu Province, China
code chat