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Showing posts from March, 2022

5 tips to reduce the food storage cold room cost

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For how to reduce the cost of cold room for food storage, what treatments and adjustments need to be made, let’s take a look at this full article: 5 tips to reduce the food storage cold room cost . 1. Use suitable building materials Several building improvements to consider include, Insulated Panels, Insulated Doors and seals, LED Lighting and so on. 2. Configure a reasonable heat exchange system 3. Clearly remove frost in the evaporator in time 4. Reasonably adjust the operating parameters of the refrigeration system to improve the efficiency of the equipment 5. Prevent impurities from entering the refrigeration system of the cold storage   Not only the construction and material cost of cold room should be considered, but also the correct use and maintenance of these cold storage buildings can reduce the heat load of the refrigeration unit and reduce the energy consumption of refrigeration, and reduce the cost of the cold room. If your want to build suitable cold room storage, and...

The operation of screw compressor unit

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The standard operation of a screw compressor unit is an important step to ensure the unit works well and has a long service life. Below lists are the steps: 1. Refrigerant gas charged. The  screw compressor unit  needs to charge refrigerant on site. The refrigerant quantities and type must be in accordance with the regulations. Before charging, the quantities of refrigerant should be enough. In these cases, when the refrigerant charge is insufficient, it will lead to insufficient cooling capacity. When the refrigerant charge is too large, it will not only increase the cost but also have a negative impact on the operating energy consumption. 2. Operation of the screw compressor unit After the finished refrigerant is charged, we need to power on to operate and set the unit. During operation, bellows need to notice. (1) Check if all valve on the compressor unit is opened completely. Especially the discharged valve. (2) For water-cooled or water chiller unit, please open the conde...

The influence of the change of suction pressure on the refrigeration system

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The influence of the change of suction pressure on the refrigeration system When the refrigeration system is running, its suction pressure has a close relationship with the condensing temperature and the circulating amount of refrigerant. For systems that use capillary tubes for throttling, the suction pressure is related to condensing pressure, refrigerant quantity, compressor efficiency, and cooling load. Therefore, when checking the refrigeration system, a pressure gauge should be installed in the suction pipe section. Reading the suction pressure provides an important basis for analyzing faults. Factors of low suction pressure. The suction pressure is lower than the normal value due to the following factors: small amount of refrigerant, small cooling load, low condensing pressure and poor filter flow. The above factors will reduce the circulation flow of the system, and the heat load of the condenser will be correspondingly reduced, so that the condensation pressure will drop. And ...