Ice-temperature vault

Abstract

The present invention discloses an ice-temperature vault. The aim of the invention is to provide an ice-temperature vault which has the advantages of high-precision control, uniform wind speed field in the vault, uniform temperature field in the vault, and satisfaction to the requirement of ice-temperature storage. The vault body comprises a base layer heat insulation layer, an outer heat insulation vault body and an inner non-heat-insulation vault body which are connected with the base layer heat insulation layer. An air interlayer is provided between the inner non-heat-insulation vault body and the outer heat insulation vault body. A plurality of air coolers which are connected in parallel for alternately operating or defrosting are installed in the air interlayer at the top part of outer vault body. A top air supply aperture plate is provided in the inner vault body. A static pressure box layer is formed between the top air supply aperture plate and the inner non-heat-insulation vault body. The periphery at the base part of inner non-heat-insulation vault body is provided with a plurality of return air grilles. A temperature sensor is respectively installed at the lower part of static pressure box layer and at the return air grilles. The temperature in the ice-temperature vault is stable. The speed field and temperature field are extraordinarily uniform. The defrosting does not affect the temperature in the vault. The ice-temperature vault has high control precision. The temperature fluctuation of hollow vault does not exceed + / - 0.3 DEG C.

Description

Technical field [0001] The invention relates to an ice temperature storage warehouse. Background technique [0002] Hyo-on storage is the storage of food in the range below 0°C to the respective freezing point. It is non-freeze storage and is the third generation of fresh-keeping technology after refrigeration and CA storage. Long-term applications have shown that it is impossible to achieve long-term storage of food due to the rapid ripening and corruption of food during cold storage; although freezing can store food for a long time, due to the death of food cells, juice loss occurs during thawing, and the original food cannot be maintained. There is a flavor. Ice temperature storage can effectively maintain the inherent flavor and freshness of ripe fruits and vegetables for a long time, so it can increase the value of commodities. Ice temperature technology is widely used in the fields of agriculture, storage, animal husbandry, aquatic products storage and transportation, and m...

AI Technical Summary

Problems solved by technology

[0004] At present, ice temperature storage is mostly transformed from the original cold storage by adding circulating fans and cold storage plates. The uniformity of the flow field in the storage is poor, and there are dead angles in temperature and wind speed, which makes it difficult to meet the requirements of ice temperature storage.

Moreover, the control of temperature fluctuation is mostly controlled by compressor frequency conversion or thermal compensation, while the control of frequency conversion technology is more complicated, the initial investment is also high, and the energy loss of thermal compensation control method is too large

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