+/-5 and -25℃ Large and medium-sized freezers

Large and medium-sized freezers can be used in food companies, dairy factories, vegetable and fruit warehouses, egg warehouses, military, etc. The key to food freezing storage is the temperature-controlled storage of dairy products, meat products, seafood, poultry, vegetables and fruits, cold food, potted flowers, green plants, tea leaves and other foods.

In the installation of large and medium-sized cold storages, refrigeration units are used to refrigerate, using liquid with a very low vaporization temperature as the cooling liquid to make it volatilize under the standard of bottom pressure and mechanical equipment operation, digest and absorb the heat generated in the storage, and then exceed the water The purpose of cooling down. The most common is the shrink-type refrigerator, which is composed of a refrigeration compressor, a cooler, and a volatilization tube.

According to the method of the volatilization tube equipment, it is divided into two types: immediate water cooling and simplified water cooling. Install the volatilization tube in the cold storage room for immediate water cooling. When the liquid coolant passes through the bottom pressure volatilization tube, it immediately digests and absorbs the heat generated in the warehouse to reduce the temperature. In simple water cooling, the blower motor sucks the gas in the warehouse into the evaporative cooling equipment. After the gas is circulated in the evaporating tube in the water cooling equipment, it is sent to the warehouse to reduce the temperature. The advantage of the evaporative cooling method is that the water cools quickly and the temperature of the storage location is relatively uniform. Together, it can carry out the harmful substances such as CO2 caused by the whole storage process.

Large and medium-sized frozen warehouses are classified into L, Q, and J grades. Several types of commonly used temperature are 5--5C, -10 -18c, -20--23C, and unique frozen warehouses reach below -30C. Different needs can be considered. It is an ideal freezing warehouse for storing meat, aquatic products, eggs, dairy products, fresh fruits, vegetables and fruits, etc. It is generally applicable to major banks and units. It is environmentally friendly and energy-saving, and the freezer has superior thermal insulation performance. It can produce a variety of specifications and models of freezer to provide options, which is convenient for customers to use the current places and indoor spaces flexibly.

How to choose refrigeration unit equipment for large low-temperature cold storage?

There are also many types of refrigeration units. Many refrigeration units in large-scale low-temperature cold storages prefer to use parallel units. What are the advantages of this?

1. The internationally renowned brand Bitzer refrigeration compressors have very stable quality and low noise compared to other similar products.

2. The operation reliability is high. Even if any refrigeration compressor fails, it will not affect the operation of the entire refrigeration system.

3. There are many combinations of cooling capacity. Large-scale low-temperature cold storage purchases or ambient temperature fluctuations can sometimes be large, and parallel units can obtain a better cooling capacity ratio.

4. A single compressor in the unit has a smaller operating load of 25%, and can be adjusted for 50%, 75%, and 100% energy, which can match the cooling capacity required in current operation to a greater extent, and is more efficient and energy-saving.

5. The compressor has a simple and compact structure, high compression strength and high refrigeration efficiency.

6. ​​Parallel pipelines and valves are set up between the two relatively independent systems. When the refrigeration unit and the equipment components at the condenser fail, the other system can maintain its basic operation.

7. The unit control is advanced PLC electronic control and display functio