• Which type of evaporator is used in cold storage
    Which type of evaporator is used in cold storage Dec 09, 2021
    There are usually two types of refrigeration equipment inside common cold storage: aluminum tube heat exchanger and walk in cooler unit. The corresponding cooling methods are tube refrigeration and air cooler refrigeration. aluminum tube heat exchanger: According to whether there are fins on the surface of the aluminum tube, the aluminum tube can be divided into smooth aluminum tube and finned alu...
  • How do cold storage systems work-from KITDOO
    How do cold storage systems work-from KITDOO Dec 10, 2021
    Cold storage uses cooling facilities to create a warehouse with suitable humidity and low temperature conditions. It is a place where products are processed and stored. It can get rid of the influence of climate and extend the Cold storage period of various products to adjust market supply. There are many types of Cold storage refrigeration systems. According to the different types of refrigerants...
  • How to save energy in cold storage
    How to save energy in cold storage Dec 18, 2021
    With the continuous development of cold storage technology and the rapid expansion of cold storage capacity, how to maintain high efficiency and low energy cold storage has become a bottleneck restricting the development of cold storage. This article aims at how to configure a suitable heat exchange system, how to improve the refrigeration efficiency of the heat exchange system, and how to reduce ...
  • Common faults and causes of screw chillers Jan 12, 2022
    Common faults and causes of screw chillers 1. High voltage fault The compressor discharge pressure is too high, causing the high pressure protection relay to act. The compressor discharge pressure reflects the condensing pressure. If the pressure is too high for a long time, it will cause the compressor running current to be too large, which will easily burn the motor, and also easily cause damage...
  • Reasons for abnormal high and low pressure of cold storage system
    Reasons for abnormal high and low pressure of cold storage system Feb 22, 2022
    The evaporating pressure and temperature and the condensing pressure and temperature of the refrigeration system are the main parameters. It is an important basis for operation and adjustment. According to the actual conditions and system changes, the operating parameters are continuously adjusted and controlled to operate under economical and reasonable parameters, which can ensure the safety of ...
  • Cold storage energy saving method
    Cold storage energy saving method Feb 22, 2022
    With the continuous development of refrigeration technology and the rapid expansion of cold storage capacity, how to keep cold storage with high efficiency and low energy has become a bottleneck restricting the development of cold storage. Aiming at how to configure a suitable heat exchange system, how to improve the refrigeration efficiency of the heat exchange system, and how to reduce the cold ...
  • How an air-cooled heat pump works
    How an air-cooled heat pump works Mar 18, 2022
    Air-cooled heat pump cold and hot water condensing unit is a unit that generates cold/heat in a centralized manner. It is in the form of a distributed air conditioning system for each room. The terminal device of the cold/hot water unit is usually a fan coil unit. Cold and hot water means that the unit can produce cold and hot water, which is the most common household water machine central air con...
  • The main performance of the normal operation of the refrigeration system
    The main performance of the normal operation of the refrigeration system Apr 12, 2022
    1. After the compressor is started, it should run smoothly without noise, and the protection and control components should be able to work normally. 2. The cooling water and refrigerant water should be sufficient, the water pressure should not be less than 0.12MPa, the water flow should meet the design requirements, and the cooling water temperature should generally be around 32℃. 3. The outlet pr...
  • Common faults of cold storage refrigeration system (1) Apr 12, 2022
    1. Exhaust pressure is too high cause of issue: There are non-condensable gases such as air in the system; Insufficient or too hot cooling water; The Cold room condensers is dirty and affects heat exchange; Too much refrigerant in the system; The exhaust valve is not fully opened or the exhaust pipe is not smooth. Processing method: Release air and other non-condensable gases; Adjust the cooling w...
  • Common faults of cold storage refrigeration system (2)
    Common faults of cold storage refrigeration system (2) Apr 13, 2022
    3. The suction pressure is too high cause of issue: Excessive opening of expansion valve; There is a problem with the expansion valve or the position of the temperature sensor is incorrect; The amount of refrigerant in the system is too large; Excessive heat load; The suction valve is broken, high and low pressure blow-by gas; The safety valve is opened prematurely, and the high and low pressure a...
  • Common faults of cold storage refrigeration system (3)
    Common faults of cold storage refrigeration system (3) Apr 13, 2022
    6. The oil temperature is too high cause of issue: The cooling effect of the oil cooler decreases; Insufficient oil cooling water supply; Abnormal wear and tear of the compressor of condensing unit; Method of exclusion: The oil cooler is dirty and needs to be cleaned; increase water supply; Check the compressor of condensing unit; 7. Oil pressure is too low cause of issue: The oil pressure gauge i...
  • Common faults of cold storage equipment
    Common faults of cold storage equipment Jun 08, 2022
    1. Refrigerant leakage: After the refrigerant leaks in the system, the cooling capacity is insufficient, the suction and exhaust pressures are low, and the intermittent "squeaking" airflow sound much larger than usual can be heard at the expansion valve. There is no frost or a small amount of floating frost on the evaporator. If the expansion valve hole is enlarged, the suction pressure still does...
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