Refrigerated cold storage

1. Refrigerated form

There are two main forms of evaporators used in refrigerated cold storage: one is a cold air fan, and the other is a pipe evaporator.

air cooler

Air coolers have been widely used in refrigeration warehouses in the past decade. However, over the years of use, drawbacks such as food drying, food discoloration, energy consumption and malfunctions of fans have become increasingly prominent, prompting food operators and refrigeration engineers to actively seek solutions to this problem.

cooling grid

The main types of pipe evaporators are steel pipes and copper pipes, each with its own drawbacks due to material issues.

When steel pipes and copper pipes are used in light pipes, there is a large difference in heat transfer coefficient between the inside and outside of the pipe, resulting in material waste. Copper pipes are too expensive, and it is difficult to ensure the cleanliness of the inside of the steel pipe. In addition, the heavy weight of the evaporator increases the construction cost of the refrigerated warehouse, and many unfavorable factors restrict its development. The patented product aluminum bar not only solves the above-mentioned problems, but also has more advanced performance.

2Characteristics of refrigerated cold storage

The characteristic of a refrigerated cold storage is to gradually place instruments into the cold storage irregularly, and after a period of time, the temperature of the cold storage reaches-20 ℃, there are no special requirements for this period of time, but the storage temperature is strictly required. A typical low-temperature storage is between -18 ℃ and 23 ℃. However, for storing cold drinks containing dairy products, the storage temperature should be set at -20 ℃ -28 ℃. However, these two different temperatures require different levels of equipment, and there is a significant difference in equipment investment. Generally speaking, refrigeration is the process of storing food with such a demand in order to maintain its required temperature and preserve its quality.

Because the temperature dropped to-Below 150 ℃, the freezing rate of food is relatively high, and the activity and growth of microorganisms and enzymes are basically stopped. The oxidation process is also very slow. So food can be stored for a longer period of time and has better refrigeration quality. In addition, refrigerated food also requires a relatively stable temperature inside the warehouse, as excessive temperature fluctuations can cause food to spoil and deteriorate.

3Cold storage technology

The warehouse body is made of rigid polyurethane or polystyrene foam insulation sandwich board, and the plastic length and specification are poured by high-pressure foaming process at one time to meet the different requirements of users. Its characteristics are: Good thermal insulation performance, light corrosion, anti-aging, beautiful appearance.

4Aluminum refrigerated storage

scope of application

Cold storage is mainly used for low-temperature refrigeration of food, frozen meat, frozen aquatic products, frozen seafood, poultry, etc. Mainly used in food factories, meat processing plants, poultry and egg warehouses, supermarkets, military units, hotels and other places.

5 Advantages of Aluminum Row Refrigeration

The use of refrigerated aluminum bars has the following five advantages:

1. Significant energy-saving effect;

2. Good thermal conductivity;

3. Lightweight, easy to install, and low food consumption;

4. The electric defrosting function solves the problem of difficult defrosting of aluminum pipes;

5. The pressure resistance of the exhaust pipe is high, the system is clean, and the service life of the compressor is extended.