A device for assisting vacuum precooling of rice

An auxiliary device and pre-cooling technology, which is applied to household refrigeration devices, applications, household appliances, etc., can solve the problems of increasing the risk of microbial contamination, uneven moisture distribution of rice, and reducing quality, so as to avoid quality deterioration and restrain outward Evaporation, the effect of maintaining quality
CN109393302BActive Publication Date: 2022-03-15SHAOGUAN COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAOGUAN COLLEGE
Publication Date
2022-03-15

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Abstract

The invention belongs to the field of rice processing equipment and relates to a device for assisting vacuum precooling of rice. The device is composed of a hollow body base plate (19), an accommodating cavity (17) and a refrigerant (20). The accommodating cavity (17) is embedded in the hollow body base plate (19) and vertically penetrates through the hollow body base plate ( The upper and lower planes of 19) form a sealed hollow area with the other parts of the hollow body substrate (19) except the accommodating cavity (17), and the hollow area is filled with refrigerant (20). In the vacuum box (1) in the cold system and cooperate with the vacuum precooling system to complete the precooling of the steamed rice. The auxiliary device group can carry out auxiliary vacuum precooling on cooked rice to obtain fast precooling rate, low water loss and high color index, and can also realize mass industrial production of rice.
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Description

technical field

[0001] The invention belongs to the technical field of food processing, and in particular relates to a device for assisting vacuum precooling of rice. Background technique

[0002] Vacuum precooling is mainly to cause the evaporation of free water in the material by reducing the pressure of the material environment, and the huge latent heat required for water evaporation comes from the material itself, so that the material can be cooled rapidly. It is not difficult to find that the material has a certain pore structure and free water content is the key to ensure that it can be pre-cooled by vacuum. Rice has a distinct void structure and a high moisture content, which is ideally suited for vacuum precooling in principle. Relevant research results also show that compared with air cooling, rice can obtain extremely fast pre-cooling rate under vacuum pre-cooling conditions. On the contrary, although vacuum pre-cooling can obtain a fast pre-cooling rate, the cos...

Claims

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