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To do refrigeration, first understand the...
Refrigerant, also known as refrigerant, is the working substance in the refrigeration system. At present, there are more than 80 kinds of substances that can be used as refrigerants. The most common refrigerants are Freon (including: R22, R134a, R407c, R410a, R32, etc.), ammonia (NH3), water (H2O...Read more -
Refrigeration piston compressor does not ...
The compressor is a complex machine with high-speed operation. Ensuring sufficient lubrication of the compressor crankshaft, bearings, connecting rods, pistons and other moving parts is the basic requirement for maintaining the normal operation of the machine. For this reason, compressor manufact...Read more -
Parallel Refrigeration Unit Pipeline Dire...
1. Introduction of Parallel Refrigeration Units Parallel unit refers to a refrigeration unit that integrates more than two compressors into one rack and serves multiple evaporators. The compressors have a common evaporation pressure and condensation pressure, and the parallel unit can automatical...Read more -
What are the common reasons for the poor ...
1. Why the colder the weather, the worse the heating effect? Answer: The main reason is that the colder the weather and the lower the outdoor temperature, the more difficult it is for the air conditioner to absorb the heat of the air from the outdoor air environment, resulting in a relatively poo...Read more -
Screw refrigeration compressors are prone...
Screw refrigeration compressors are volumetric compressors. Since they have been used since 1934, due to their excellent performance, no wear and tear, and large unit cooling capacity, they have dominated small to large and medium-sized refrigeration systems. So what types of failures are prone t...Read more -
The principle of multi-line cycle and the...
Compressed by the compressor, the original low-temperature and low-pressure refrigerant gas is compressed into high-temperature and high-pressure superheated steam, and then discharged from the exhaust pipe of the compressor. After the high-temperature and high-pressure gaseous refrigerant is dis...Read more -
Design and calculation of cold storage to...
1. Calculation method of cold storage tonnage Cold storage tonnage calculation formula: G=V1 ∙ η ∙ Ps That is: cold storage tonnage = internal volume of the cold storage room x volume utilization factor x unit weight of food G: cold storage tonnage V1: The inner volume of the refrigerator ...Read more -
What are the common problems in the insta...
1) The refrigeration compressor unit is not installed for vibration reduction, or the vibration reduction effect is not good. According to the installation specification, the overall vibration reduction device of the unit should be installed. If the vibration reduction is not standardized or ther...Read more -
Thermal expansion valve, capillary tube, ...
Thermal expansion valve, capillary tube, electronic expansion valve, three important throttling devices The throttling mechanism is one of the important components in the refrigeration device. Its function is to reduce the saturated liquid (or subcooled liquid) under the condensing pressure in th...Read more -
Debugging and installation of ceiling air...
warning protection Personal protective equipment such as gloves, glasses, shoes should be provided when operating this equipment. Installation, commissioning, testing, shutdown and maintenance services should be performed by qualified personnel (refrigeration mechanics or electricians) with suffi...Read more -
Design and selection of four parts of the...
1. Compressor: Refrigeration compressor is one of the main equipment of cold storage. Correct selection is very important. The cooling capacity of the refrigeration compressor and the power of the matched motor are closely related to the evaporating temperature and the condensing temperature. Con...Read more -
Cold storage refrigeration maintenance ex...
Worked for 10 years as a refrigeration master, personally taught valuable cold storage refrigeration maintenance experience, classic and practical First of all, I thought about it and let me talk about the state of the normal operation of the cold storage (piston machine) 1 The oil level must be ...Read more
