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Refrigeration system instant freezing chamber storage control method and refrigeration system

A technology of refrigeration system and control method, which is applied in the direction of household refrigeration equipment, cooling fluid circulation equipment, lighting and heating equipment, etc., and can solve the problems of increasing wind speed or air volume, uneven temperature drop, supercooling, shallow supercooling, etc., to achieve Increase cooling capacity and prevent ineffective effects

Pending Publication Date: 2020-03-24
HEFEI KINGHOME ELECTRICAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The uneven temperature drop in the supercooling process causes the supercooling to be released in advance
[0005] (2) The effect of supercooling relief is not good, by increasing the wind speed or air volume
[0006] (3) The depth of supercooling is shallow, and it cannot enter the supercooling state well

Method used

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  • Refrigeration system instant freezing chamber storage control method and refrigeration system
  • Refrigeration system instant freezing chamber storage control method and refrigeration system
  • Refrigeration system instant freezing chamber storage control method and refrigeration system

Examples

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Embodiment 1

[0059] like figure 2 What is shown is that this embodiment provides a refrigeration system that implements any control method of the present invention. This system includes but is not limited to the following components: refrigerated evaporator 21, return air pipeline assembly 220, return air heat exchange section 221, compressor 23, condenser 24, anti-condensation pipe 25, dry filter 26, capillary 1-271 , capillary 2-272, electric switching valve 28.

[0060] like image 3 As shown, the flow direction of the refrigerant when the refrigeration system is working is: compressor 23 → condenser 24 → anti-condensation pipe 25 → dry filter 26 → electric switching valve 28 → capillary 1-271 or capillary 2-272 → freezing Evaporator 21 → return air pipe assembly 220 → compressor 23 .

[0061] like Figure 4 As shown, the refrigeration system implementing any control method in this embodiment can be a refrigerator, and the refrigerator includes a refrigerator compartment 11 , an in...

Embodiment 2

[0121] It should be noted:

[0122] attached Figure 7 Schematic embodiment 2 is that S02C monitors to ΔT=(T at the 3rd cooling stage i -T i ') ≥ 0 An example of performing an operation for supercooling release. As would be understood by those skilled in the art, stage 4 or other stages are also possible. In this application, the monitoring of food temperature can be performed in real time or at intervals. In embodiment 2, when being monitored for the first time, ΔT=(T i -T i ') ≥ 0, with the first preset time interval τ 1 Monitor; for the first time, △T=(T i -T i ') ≥ 0, with the second preset time interval τ 2 The food temperature is detected m times again, only all △T of the first to m+1th detections satisfy △T=(T i -T i ')≥0 to execute the overcooling release procedure. Otherwise, the overcooling process is continued until the overcooling condition is met.

[0123] However, it is more valuable to monitor after the first stage of cooling is completed, because t...

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Abstract

The invention discloses a refrigeration system instant freezing chamber storage control method and a refrigeration system. When instant freezing storage control is carried out on an instant freezing chamber in the refrigerating system, a staged supercooling temperature reduction stage is carried out to make the temperature of the instant freezing chamber uniform; in the last one stage of the supercooling temperature reduction stage, by judging the temperature change difference value of food obtained before cooling and after cooling, entering of a supercooling release stage can be determined intime; and in the supercooling release stage, by controlling an electric field and combining multiple means of increasing the rotating speed of the compressor, reducing the flow of a capillary tube set and increasing the rotating speed of a condenser fan, the cooling capacity of the instant freezing chamber is increased, it is guaranteed that food stored in the instant freezing chamber rapidly passes through an ice crystal zone, the poor food supercooling release effect can be prevented, and supercooling of the food is fully removed.

Description

technical field [0001] The invention relates to a storage control method and a refrigeration system in a freezing room of a refrigeration system, in particular to a control method and a refrigerator capable of realizing food freezing storage. Background technique [0002] In order to better maintain the nutrition of frozen food, ordinary freezing, rapid freezing and other freezing methods are usually used for food preservation. However, traditional ordinary freezing has disadvantages such as uneven temperature control in the freezing chamber and staying in the maximum ice crystal formation zone for a long time. ; And although rapid freezing can pass through the maximum ice crystal formation zone fast, the production cost is higher, which is unfavorable for popularization and application on the refrigerator. The supercooling freezing technology can make the fresh-keeping objects form uniform and fine ice crystals after the supercooling process, which can better maintain the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D29/00
CPCF25D29/00F25D2600/02F25D2600/06F25D2400/36F25D2400/30
Inventor 钱梅双辛海亚梁起
Owner HEFEI KINGHOME ELECTRICAL CO LTD
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