How much does it cost to build a fruit and vegetable freezer?
three hundred and ninety-two
Fruits and vegetables cold storageIt can effectively reduce the incidence of pathogenic bacteria and fruit decay rate, but also slow down the respiratory metabolism process of fruits and vegetables, so as to prevent decay and prolong preservation.At present, some large fruit and vegetable dealers in China are building refrigerators to store fruits and vegetables. So, how much does it cost per square meter to build a fruit and vegetable cold storage?
1. Storage board cost
Cold storage insulation boardIt is also one of the factors affecting the cost of cold storage.According to the grade, the cold storage plate can be divided into three grades: low, medium and high materials, and the corresponding plate thickness is 100 mm, 120 mm and 150 mm. Different grades of plate and thickness will directly affect the insulation effect and service life of the cold storage.
At present, polyurethane and polystyrene are commonly used,Polyurethane board is commonly used by us and has more advantages than polystyrene boardBut the price is much higher.Polystyrene board, also known as foam board, has the advantages of low price, poor heat preservation performance, and easy to deform over a long period of time. Generally, it is only suitable for refrigerators above 0 ℃,For example, 100 mm thick polyurethane insulation board is recommended for fruits and vegetables cold storage at 0-5 ℃.
2. Types of fruits and vegetables stored in cold storage
Different kinds of fruits and vegetables are stored in cold storage, so the temperature requirements of cold storage are also different.For example,CabbageChinese cabbage, leekCarrotandGrape、Apple, pearstrawberryFruits and vegetables should be stored at 0 ~ 2 ℃cucumberFruits and vegetables such as pumpkin, Hami melon, orange and Shatian pomelo need to be stored at 3-5 ℃,Banana, mangolemonFruits and vegetables should be stored at 13 ~ 15 ℃.In addition, the temperature of the cold storage is related to the refrigeration effect and the size of the refrigeration unit. Therefore, the cost of the cold storage varies with the temperature of the cold storage.
3. Cold storage equipment
Refrigeration equipment is an important item in the cost of fruit and vegetable cold storage, the most important embodiment is compressor, air cooler and evaporator.The selection of compressor should consider the following problems: cold storage volume, temperature in cold storage, frequency of cold storage door opening and closing, etc,It is recommended that small-scale fruit and vegetable cold storage should use fully enclosed compressor, medium-sized fruit and vegetable cold storage should generally use semi closed compressor, and large-scale fruit and vegetable cold storage should use semi closed compressor or screw compressor。Compressor unit selection is different, the cost is not the same.
4. Regional climate environment
Different regions and climate environment are also one of the factors that affect the cost of fruit and vegetable cold storage. Under the influence of regional environment, the refrigeration temperature and operation technology of cold storage are different. For example, if the cold storage is built in the south, we only need to design a simple cold storage. If it is built in the north, we need to provide additional heating system in the construction processIn order to keep the temperature in the cold storage stable, this reason will also affect the final cost of fruit and vegetable cold storage.