Xiamen Liya Industry and Trade Co., Ltd. designs and produces various large, medium and small refrigerated warehouses, freezers, controlled atmosphere warehouses, fresh-keeping cold warehouses, quick-freezing warehouses, logistics cold warehouses, pharmaceutical storage warehouses and various experimental cold storages, constant temperature warehouses, and explosion-proof warehouses. Cold storage and other types of cold storage include modular cold storage and civil cold storage. High temperature warehouse (℃～℃), medium temperature warehouse (-℃～℃), low temperature warehouse (-℃～-℃), quick freezing warehouse and various ultra-low temperature cold storage (℃- -℃), or low temperature constant temperature and humidity, low temperature and low humidity, etc. cold storage.
Types, characteristics and uses of seed cold storage
Long-term seed cold storage is used to preserve seeds for a long time. The temperature in the storage is controlled in the range of -℃~-℃, and the relative humidity is not greater than 1. The internationally recommended reference standards for long-term storage of normal seeds are temperature conditions of -°C or lower and seed moisture content (based on wet weight). Seal in airtight containers, such as sealed metal boxes, aluminum foil bags, plastic composite film bags, glass bottles, etc. The life expectancy of seeds is 3 to 3 years, or more.
The medium-term seed storage cold storage is used to preserve mobile seeds. The temperature of the seed bank is controlled in the range of ℃ ~ ℃, and the relative humidity is not greater than 1. Seed containers are the same as those for long-term libraries. Seed moisture content ~. Seed life expectancy ~3 years.
The short-term seed cold storage is used to store the seeds in the productive seed bank. The temperature in the seed cold storage is controlled at ℃ ~ ℃, and the relative humidity is ~. Seed containers range from paper bags, plastic bags, cloth bags, glass bottles, etc. Seed moisture content is below. Seed life expectancy ~ years.
The seed cold storage consists of: refrigeration equipment, evaporator in the storage, insulation warehouse, and microcomputer temperature control system. The refrigeration system mainly includes various refrigeration compressor units. The refrigeration compressor is the heart of the cold storage and ensures the temperature of the seeds in the warehouse. The microcomputer temperature control system is the brain of the cold storage. It controls the work of the refrigeration system and the temperature inside the cold storage.
Evaporator in the cold storage. The function of the evaporator is to provide cooling energy to the cold storage. The evaporator is installed in the cold storage. A blower is used to blow the cooled air to various parts of the cold storage. Air ducts are commonly used in large cold storages to connect the evaporator. , extend the air supply distance to make the storage temperature drop more evenly.
The thermal insulation warehouse is a warehouse with certain thermal insulation performance. It is a place for storing seeds. It maintains indoor thermal insulation performance and temperature stability. The thermal insulation warehouse has a better thermal insulation structure, which can maintain cooling to the maximum extent. The cold energy generated by the equipment leaks less outside the storage, which means that the heat from outside the storage is minimized from intruding into the storage. This is also the difference between seed cold storage and ordinary houses.
Temperature of seed cold storage
Seed storage is to provide a reliable material basis for agricultural production and improve the quality of seed sowing. Moisture-proof and air-insulated seed cold storage is put into use. After the storage of hybrid rice and corn seeds and warehouse temperatures The analysis of observation records of humidity at regular fixed points shows that the annual average temperature of the storage is .℃, and the average relative humidity is 3. The moisture content and germination rate of stored seeds are tracked for two years at regular fixed points. The test results show that the germination rate of hybrid rice seeds has decreased. The germination rate of hybrid corn seeds decreases, the moisture content of the seeds remains basically unchanged, and the economic benefits of storing seeds are significant.
Xiamen Liya Industry and Trade Co., Ltd.
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Low temperature seed storage seed cold storage