System and method for prolonging storage time of Chinese cabbages

Abstract

The invention relates to a system and method for prolonging the storage time of Chinese cabbages. The system comprises a solar heat collector, air ducts, a storage cellar and a fan, wherein the air ducts comprise the overground air duct located above the ground and the underground air duct located below the ground; the first end of the overground air duct is connected with an air outlet of the solar heat collector, and the second end of the overground air duct is connected with the first end of the underground air duct; the fan is arranged at the joint of the overground air duct and the underground air duct; the underground air duct comprises the vertical air duct and the horizontal air duct; the vertical air duct is located on one side of the storage cellar in the width direction, and thehorizontal air duct is located below the storage cellar and extends in the length direction of the storage cellar; and a plurality of vent holes communicating with the horizontal air duct are formedin the bottom of the storage cellar at intervals in the length direction, and an exhaust outlet is formed in the top of the side, away from the overground air duct, of the storage cellar. According tothe system and method, generation of ethylene can be reduced, the operation cost is low, and the system and method are suitable for domestic conditions.

Description

technical field [0001] The invention relates to the technical field of vegetable storage, in particular to a system and method for prolonging the storage time of cabbage. Background technique [0002] Cabbage will produce a plant hormone called ethylene during storage, which is an important reason for reducing the commercial vegetable rate of cabbage. When ethylene reaches the effective concentration, it can lead to desquamation of vegetables, and the desquamation effect will be aggravated by the increase of temperature. Ethylene accumulation can accelerate the senescence of the outer leaves, increase the activity of peroxidase at the growth point, and promote the early regrowth, which in turn leads to detachment loss. Long-term storage, the loss of cabbage can reach 30% to 50%. Existing cabbage storage method is a lot, mainly contains heaping, burying, storing in a cellar. Stacking is to stack the cabbage obliquely in the open field or in the shed, which is only suitable...

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Problems solved by technology

There are foreign vegetable warehouses that meet the above conditions through mechanical conditions, but civil engineering and equipment require a lot of investment, and the operating cost is also high, so it is difficult to adapt to the domestic situation.

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