French fries quick-freeze line, food quick-freeze machine, seafood quick-freeze cabinet
The refrigerating capacity of the equipment is directly proportional to the amount of the fast freezing of food, and inversely proportional to the time of the fast freezing.
The fast freezing storeroom quickly passes through its maximum ice crystal formation area, and rapidly freezes when the central temperature reaches -18℃.
A variety of changes will occur during the freezing process of food, such as physical changes (volume, thermal conductivity, specific heat, dry loss changes, etc.) chemical changes (protein denaturation, color change, etc.) changes in cell tissue and biological and microbial changes, etc.
Fast frozen food in the freezing process to maximize the food to maintain the original nutritional value and color fragrance.
Quick-frozen foods have the following advantages:
1. Avoid the formation of large ice crystals between cells;
2. Reduce the outflow of intracellular water, and reduce the loss of SAP during thawing；
3. The contact time between concentrated solutes, food tissues, colloid and various components inside the cell tissue is significantly shortened, and the harm of concentration is reduced to the lowest degree;
4. The food should be rapidly reduced to the temperature of microbial growth activity to resist microbial growth and biochemical reactions;
5, food in the cold storage time is short, is conducive to improve the utilization rate of refrigeration equipment and continuous production efficiency.
1. The cold storage body is mainly composed of various heat insulation panels, namely, heat insulation wall (wall), roof (patio panel), bottom plate, door, supporting plate and base, etc.
2. The thickness of the library board is generally 150mm and 100mm.
3. It has four properties of strict sealing, moisture-proof and insulation, firmness and frost resistance.
4. The refrigerating unit is the heart of the refrigeration equipment of small cold storage. It adopts the compression head of American imported valley wheel, which is stable in operation and low in energy consumption, strong in refrigeration, small in noise, safe and reliable.
5. The cold storage can be fully intelligent electric control, with temperature setting, temperature control and automatic defrosting functions. Mainly used for frozen processing and refrigeration of food, the size of the refrigerator can be customized according to customer requirements.
The size of the cold storage is not fixed.
Purpose of cold storage:
1. Wide range of refrigerated storage items, such as fruits, vegetables, eggs, meat, dairy products, medical supplies, seafood, ice cream, etc.
2. The refrigerator is divided into five working processes: cooling room, freezing room, refrigerating room, freezing room and ice house.
1. Freshness storage: The storage temperature is generally 0℃~5℃;
Mainly used for fresh meat, dairy products, fresh eggs, fruits and vegetables, rice and so on.It keeps food at a low temperature, which is generally no lower than 0℃C. In this environment, food can be kept as fresh as possible.
2. Refrigerated storage: The storage temperature is generally -15℃~-18℃;
Mainly used for food refrigeration.Part of the food is put into the cold storage irregularly, while another part of the food is taken out from the cold storage irregularly. There is no specific requirement on the refrigeration time of the food, and the temperature is kept within the range of -15℃~-18C.
3. Low temperature storage: The storage temperature is generally -22℃~-25℃;
Mainly used for food storage at -22℃~-250℃.Only in this temperature condition, the food will not go bad.For example, when ice cream is stored at a temperature higher than -25℃, its fragrance will be lost. When seafood is stored at a temperature higher than this, its umami and taste will be much worse.
The characteristics of low-temperature storage are as follows: food is put into the cold storage irregularly and gradually. After a period of time, there is no special requirement for the temperature of the cold storage during this period. The temperature of the cold storage reaches -259C, and the temperature of the cold storage is very strict after the temperature in the cold storage is constant.
4. Quick-frozen storage: The storage temperature is generally below -30℃;
At the same time can be designed according to the special requirements of users ultra-low temperature freezing, the lowest temperature up to -55%℃.Cold storage insulation board surface stainless steel, color steel two kinds of materials are now generally polyurethane cold storage board size can be combined according to user requirements, a few tons of small activity cold storage, large cold storage can reach tens of thousands of tons, at the same time according to the requirements of any different specifications of the compartment.
The refrigerator adopts advanced microcomputer control system and advanced control method, and LCD displays the temperature, starting time, melting time, fan delay time, alarm indication and various technical parameters in the refrigerator.Simple operation, very convenient for users to use.