Wuxi Guanya Refrigeration Technology co., ltd

High-pressure failure of stainless steel cryogenic refrigerator

At the high speed of the stainless steel cryogenic refrigerator compressor, the temperature rises and the compressor generates high air pressure, which causes the high voltage protection relay to operate. The discharge pressure of the compressor reflects the condensing pressure. The normal value should be 1.3~1. 7MPa, and the protection value of the Wuxi Guanya stainless steel cryogenic refrigerator is set to 2.1MPa. Then, if it is a long-term work, the compressor pressure is too high, which will lead to excessive operating current of the compressor, easy to burn the motor, and easily cause damage to the valve port of the compressor exhaust port.

The equipment condenser is dirty or clogged. The cold water is generally tap water. It is easy to scale when it is above 30 °C, and since the cooling tower is open, it is directly exposed to the air, and dust foreign matter can easily enter the system, causing the condenser to clog. The unit should be backwashed regularly and chemically cleaned if necessary.

The stainless steel cryogenic refrigerator has insufficient cooling water flow and cannot reach the predetermined water flow. The main performance is that the pressure difference between the inlet and outlet water of the unit becomes smaller and the temperature difference becomes larger. The reason for the insufficient flow is: the system is short of water or air. The solution is to install an exhaust valve at the high point of the pipeline to exhaust; the pipeline filter is blocked or too fine, and the water permeability is limited. The appropriate filter should be selected and periodically. Clean the filter.

The cooling water temperature of the equipment is high and the condensation effect is poor. The rated working condition of the cooling water required by the unit is 28~35°C. The water temperature is high and the heat dissipation is bad, which will inevitably lead to high condensation pressure. This phenomenon often occurs in summer.

So what are the reasons for the high water temperature of stainless steel cryogenic refrigerators?

Stainless steel cryogenic refrigerator cooling tower failure, such as the fan is not open or even reverse, the water distributor does not turn, the performance of the cooling water is high, and rapid rise; 2. The temperature is high, the water is short, and the amount of water that can be recycled is small. The stainless steel cryogenic refrigerator has too much refrigerant and is mixed with air, nitrogen and other non-condensable gases. This situation usually occurs after maintenance, and the vacuum is not complete. Can only be drained, re-vacuum, refill the refrigerant. False alarm caused by electrical failure of stainless steel cryogenic refrigerator. Due to the moisture, poor contact or damage of the high voltage protection relay, the unit electronic board is damp or damaged, and the communication failure causes a false alarm. This kind of false fault, often the HP fault indicator on the electronic board is not bright or slightly bright, the manual reset of the high voltage protection relay is invalid, and the computer displays “automatic disappearance”. The compressor running current is normal, and the suction and exhaust pressure is also normal.

Therefore, the equipment needs to solve the fault in time, and it is necessary to perform regular maintenance and maintenance work. If there are other technical problems, you can contact the stainless steel cryogenic refrigerator Wuxi Guanya LNEYA professional manufacturer.

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