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Controlled atmosphere cold storage method, controlled atmosphere cold storage control system and controlled atmosphere cold storage

A control system and cold storage technology, applied in the cold room, through freezing/refrigerating preservation of fruits/vegetables, cooling machines, etc., to achieve the effects of slowing down the ripening progress, reducing consumption, and reducing respiration

Pending Publication Date: 2021-08-06
绍兴市大舜农业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although this kind of controlled atmosphere storage can realize controlled atmosphere refrigeration, there is still room for improvement on how to ensure a better refrigeration effect and save energy.

Method used

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  • Controlled atmosphere cold storage method, controlled atmosphere cold storage control system and controlled atmosphere cold storage
  • Controlled atmosphere cold storage method, controlled atmosphere cold storage control system and controlled atmosphere cold storage
  • Controlled atmosphere cold storage method, controlled atmosphere cold storage control system and controlled atmosphere cold storage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] A kind of controlled atmosphere refrigeration method, with reference to figure 1 and figure 2 , including the following processes:

[0069] Process 1: Obtain the current oxygen concentration value and ethylene concentration value in the refrigerator;

[0070] Real-time comparison of whether the current oxygen concentration value in the refrigerator exceeds the first reference threshold value, and when the current oxygen concentration value exceeds the first reference threshold value, start to flush nitrogen into the refrigerator to replace the gas originally stored in the refrigerator.

[0071] In this embodiment, the oxygen concentration value and the ethylene concentration value in the cold storage are obtained by using an oxygen concentration sensor and an ethylene concentration sensor respectively, and real-time monitoring is performed by real-time acquisition.

[0072] The first benchmark threshold value is a benchmark empirical value of the oxygen concentration...

Embodiment 2

[0085] A kind of air conditioning cold storage, refer to image 3 , including controlled atmosphere refrigeration control system, controlled atmosphere system, humidification system.

[0086] refer to Figure 4 , the controlled atmosphere refrigeration control system includes a processor and a memory, and the memory stores an instruction set for the processor to call to realize the following functions:

[0087] Obtain the current oxygen concentration value and ethylene concentration value in the refrigerator; compare in real time whether the current oxygen concentration value in the refrigerator exceeds the first reference threshold; if the current oxygen concentration value exceeds the first reference threshold, control the gas transmission equipment to start to refrigerate The warehouse is filled with nitrogen to replace the gas originally stored in the cold storage;

[0088] If the current oxygen concentration value in the refrigerator is lower than the first reference th...

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PUM

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Abstract

The invention discloses a controlled atmosphere cold storage method, a controlled atmosphere cold storage control system and a controlled atmosphere cold storage, and relates to the field of refrigeration. The controlled atmosphere cold storage method comprises the steps that the current oxygen concentration value and the current ethylene concentration value in the cold storage are obtained; whether the oxygen concentration value exceeds a first reference threshold value or not is compared; if the first reference threshold value is exceeded, nitrogen is filled into the cold storage to replace the originally stored gas; if the oxygen concentration value is lower than the first reference threshold value but higher than the second reference threshold value, whether the ethylene concentration value exceeds a third reference threshold is compared; if the ethylene concentration value exceeds the third reference threshold value, nitrogen is filled into the cold storage to replace the originally stored gas; whether the ethylene concentration exceeds a fourth reference threshold is compared, wherein the fourth reference threshold is greater than the third reference threshold; and if the fourth reference threshold value is exceeded, nitrogen is filled into the cold storage to replace the originally stored gas. The concentration of oxygen or ethylene is reduced, the respiration of fruits and vegetables is reduced, the maturation progress is slowed down, the refrigeration storage effect is better, meanwhile, nitrogen replacement is conducted only when needed, consumption is reduced, and more energy is saved.

Description

technical field [0001] The invention relates to refrigeration technology, more specifically, it relates to a controlled atmosphere refrigeration method, a controlled atmosphere refrigeration control system and a controlled atmosphere refrigerator. Background technique [0002] Cold storage is a device that uses artificial means to create an environment different from the outdoor temperature or humidity, and stores food, liquids, chemicals, medicines, vaccines, scientific experiments and other items at constant temperature and humidity. [0003] Controlled atmosphere storage is a kind of cold storage. It is based on cold storage and increases the adjustment of gas components. By controlling the conditions of temperature, humidity, carbon dioxide, oxygen concentration and ethylene concentration in the storage environment, it can inhibit the respiration of fruits and vegetables and delay their development. The metabolic process can better maintain the freshness and commercialit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D17/04F25D29/00F25D13/00A23B7/04A23B7/152
CPCF25D17/045F25D29/00F25D13/00A23B7/04A23B7/152F25D2317/04F25D2500/06
Inventor 杨兴军
Owner 绍兴市大舜农业发展有限公司