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  • Cold storage defrost knowledge and skills

    Cold storage defrost knowledge and skills

      Cold storage defrost is mainly due to the frost of the surface of the evaporator in the cold storage, reducing the humidity in the cold storage, hindering the heat transmission of pipelines, and affecting the refrigeration effect. 一. Cold storage defrost measures   1. Hot gas defrost   The h...
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  • The working principle and accessories of ...

    Freezing: the operation process of using the low temperature source generated by refrigeration to cool the product from normal temperature and then freeze it. Refrigeration: The operation process of obtaining a low-temperature source by using the cold effect produced by the change of the physical...
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  • Cold storage defrosting knowledge and skills

    The defrosting of the cold storage is mainly due to the frost on the surface of the evaporator in the cold storage, which reduces the humidity in the cold storage, hinders the heat conduction of the pipeline, and affects the cooling effect. 1. Hot air defrosting   Directly pass the hot gase...
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  • How to quickly locate and solve the failu...

    When the refrigeration system breaks down, generally the faulty part cannot be seen directly, because it is impossible to disassemble and dissect the components of the refrigeration system one by one, so it can only be checked from the outside to find out the abnormal phenomenon in operation and ...
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  • Reasons and solutions for the slow temper...

    It is a common phenomenon that the temperature of the supermarket freezer cannot drop and the temperature drops slowly. Here is a brief analysis of the reasons for the slow temperature drop, hoping to bring some help to friends in the same industry. 1. Due to the poor heat insulation or sealing p...
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  • Why can’t the temperature of the co...

    First, the failure analysis and treatment of the cold storage temperature does not drop The temperature of the refrigerator is too high. After inspection, the temperature of the two warehouses was only -4°C to 0°C, and the liquid supply solenoid valves of the two warehouses were opened. The compr...
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  • Some Basic Welding Theoretical Terms to K...

    1. Welding: refers to a processing method that achieves atomic bonding of weldments by heating or pressure, or both, with or without filler materials. 2. Weld seam: refers to the joint part formed after the weldment is welded. 3. Butt joint: a joint in which the end faces of two weldments are rel...
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  • What should I do if there is scale in the...

    There are three circulation systems in industrial refrigeration units, and scale problems are prone to occur in different circulation systems, such as refrigeration circulation system, water circulation system, and electronic control circulation system. Different circulation systems require tacit...
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  • Troubleshooting method for refrigeration ...

    The refrigeration system is a general term for the equipment and pipelines through which the refrigerant flows, including compressors, condensers, throttling devices, evaporators, pipelines and auxiliary equipment. It is the main component system of air conditioning equipment, cooling and refrige...
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  • Comparison and advantages of carbon dioxi...

    The refrigeration efficiency of carbon dioxide air conditioners is generally lower than that of common refrigerant systems under the same working conditions, and it is much lower. Whether heating can really be more efficient is doubtful. I have seen this statement in many places, but I don’...
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  • What kind of “chain” is the c...

    what is cold chain Cold chain refers to the special supply of certain products in the process of processing, storage, transportation, distribution, retail, and use, and all links are always in the specific low temperature environment necessary for the product to reduce loss, prevent pollution and...
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  • How harmful are refrigerants to the human...

    The refrigeration function of the air conditioner mainly relies on the refrigerant difluoromethane. Difluoromethane is odorless and non-toxic at room temperature, and generally has little effect on the human body. However, it is a flammable gas, and after being highly volatile, it may quickly for...
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