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Cold energy recovery type liquid nitrogen cryogenic quick-freezing fresh-keeping device and method

A technology of cold energy recovery and fresh-keeping device, which is applied to household refrigeration devices, lighting and heating equipment, household appliances, etc., can solve the problems of poor device applicability, poor quick-freezing effect, inconvenient cleaning, etc., and achieves good thermal insulation effect. , Easy to clean, good sealing effect

Active Publication Date: 2019-05-21
CNFC ZHOUSHAN MARINE FISHERIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, some liquid nitrogen cryogenic quick-freezing and fresh-keeping devices have come out on the market, but these devices generally have problems such as poor applicability, high nitrogen consumption rate, high freezing loss rate, poor quick-freezing effect, and inconvenient cleaning.

Method used

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  • Cold energy recovery type liquid nitrogen cryogenic quick-freezing fresh-keeping device and method
  • Cold energy recovery type liquid nitrogen cryogenic quick-freezing fresh-keeping device and method
  • Cold energy recovery type liquid nitrogen cryogenic quick-freezing fresh-keeping device and method

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] Such as Figure 1 to Figure 6 As shown, a cold energy recovery type liquid nitrogen cryogenic quick-freezing fresh-keeping device mainly includes a discharge end insulation shell 7, a feed end insulation shell 11, a spray system end insulation shell 10, and a fan end insulation shell 9. , Liquid nitrogen spray system 4, Liquid nitrogen flow control system 3, Conveyor belt system 6, Exhaust system 1.

[0038] The insulating shell at the discharge end, the insulating shell at the feed end, the insulating shell at the spray system end, and the insulating shell at the fan end are all insulated by vacuuming.

[0039] The conveyor belt system is movable and detachable. Through the meshing of gear A and gear B, the rotation of the motor is converted into the rotation of the conveying system.

[0040] Circulating convection fans 2 are installed on the heat-insulation...

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Abstract

The invention discloses a cold energy recovery type liquid nitrogen cryogenic quick-freezing fresh-keeping device and method. The cold energy recovery type liquid nitrogen cryogenic quick-freezing fresh-keeping device comprises a material outlet end heat preservation shell body, a material inlet end heat preservation shell body, a spraying system end heat preservation shell body, an air fan end heat preservation shell body, a liquid nitrogen spraying system, a liquid nitrogen flow control system, a conveyer belt system and an air exhaust system. By means of the cold energy recovery type liquidnitrogen cryogenic quick-freezing fresh-keeping device and method, a reverse-flow type liquid nitrogen cryogenic quick-freezing fresh-keeping device or a fair-current type liquid nitrogen cryogenic quick-freezing fresh-keeping device can be formed, fastest freezing is adopted to lock moisture in marine products, damage to cells of the marine products is reduced, so that the texture and color of the marine products are maintained, and the cold energy recovery type liquid nitrogen cryogenic quick-freezing fresh-keeping device is high in universality, convenient to clean and good in heat preservation performance.

Description

technical field [0001] The invention belongs to the field of fresh-keeping processing of aquatic products, and in particular relates to a cold energy recovery type liquid nitrogen cryogenic quick-freezing fresh-keeping device and method. Background technique [0002] The freshness preservation of aquatic products has always plagued the development of marine fisheries. The existing traditional freezing technology will lead to unpredictable protein denaturation, water holding capacity decrease, juice loss after thawing and other quality deterioration of aquatic products. Therefore, it is necessary to update the existing fresh-keeping means to maintain the quality of aquatic products to the greatest extent. [0003] Compared with traditional quick-freezing technology, liquid nitrogen cryogenic quick-freezing aquatic product preservation technology can reduce the damage to aquatic product cells and greatly maintain the freshness and quality of aquatic products. In recent years...

Claims

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Application Information

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IPC IPC(8): F25D3/11F25D29/00
Inventor 蔡勇刘硕林王林姜凯友陈磊杨志坚丁凡
Owner CNFC ZHOUSHAN MARINE FISHERIES
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