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Combined cold-storage agent for electric refrigerator

A cold storage agent and combined technology, which is applied in the direction of heat exchange materials, chemical instruments and methods, can solve the problems of ice precipitation, which is not conducive to the temperature uniformity of the freezer compartment of refrigerators, and achieves improved cooling capacity distribution and high heat transfer efficiency. , the effect of reducing energy consumption levels

Inactive Publication Date: 2006-05-24
刘益才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: for the cold storage agent currently used in refrigerators Efficiency, icing phenomenon, and unfavorable adjustment of the temperature uniformity of the freezer compartment of the refrigerator, and design a reasonable combination of phase change materials with different phase change temperatures in the same cold storage system to significantly improve the system The combination of various hydrated salt cold storage agents that can effectively eliminate the phenomenon of ice precipitation and maintain the uniformity of the phase transition rate during the phase transition process

Method used

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  • Combined cold-storage agent for electric refrigerator
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  • Combined cold-storage agent for electric refrigerator

Examples

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Embodiment 1

[0024] A specific embodiment is cold storage agent 1, its formula is 5% KCl+94.44% H 2 O+0.5% borax+0.05% household detergent+0.01% aluminum foam particles (particle diameter is 300-500 microns). Its latent heat of phase transition is 289J / g and the main phase transition temperature is -9.5°C. The corresponding DSC measurement results are shown in figure 1 shown.

[0025] The formula of cool storage agent 2 is 17%NaCl+7%KCl+74.44%H 2 O+0.5% borax+0.05% household detergent+0.01% aluminum foam particles (particle diameter is 400 microns). Its phase transition latent heat is 230J / g and phase transition temperature is -21.3°C. The corresponding DSC measurement results are shown in figure 2 shown.

[0026] The specific structural diagram of the combined cool storage agent formed by combining the above two cool storage agents is shown in image 3 As shown, the structure is a flat shallow box-shaped container with good thermal conductivity, which is arranged between the evapora...

Embodiment 2

[0028] A specific embodiment is cold storage agent 1, and its formula is 5% KCl+94.44% H O+0.5% borax+0.05% household detergent+0.01% aluminum foam particles (particle diameter is 300 microns). The formula of cool storage agent 2 is 15%NaCl+7%KCl+77.44%H 2 O+0.5% borax+0.05% household detergent+0.01% aluminum foam particles (particle diameter is 300-500 microns). The cooling and temperature recovery curves of the freezer are shown in Image 6 shown.

Embodiment 3

[0030] A specific embodiment is cold storage agent 1, its formula is 2% KCl+97.44% H 2 O+0.5% borax+0.05% household detergent+0.01% aluminum foam particles (particle diameter is 300 microns). The formula of cool storage agent 2 is 12%NaCl+7%KCl+80.44%H 2 O+0.5% borax+0.05% household detergent+0.01% aluminum foam particles (particle diameter is 300-500 microns). The cooling and temperature recovery curves of the freezer are shown in Figure 7 shown.

[0031] The cold storage agent provided by the invention is composed of two hydrated salts with different cold storage phase transition temperatures.

[0032] The refrigerator cold storage device provided by the present invention has higher cycle efficiency and exergy efficiency than traditional refrigerator cold storage devices. It has simple structure, convenient configuration, easy-to-obtain raw materials, and low price, and can effectively prolong the power failure of refrigerators and other equipment. Cold time.

[0033] ...

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Abstract

The invention relates to fridge used combination type accumulation of cold agent that is made up of two accumulation of cold agents: one that the accumulation of cold area is -10 degree centigrade to -21 degree centigrade contains 1-6% potassium chloride, 0.5-1% NaF or borax, 0.05-0.5% home use washing agent and pure water; and the other that the accumulation of cold area is 0í¬10 degree centigrade contains 12-18 potassium chloride, 0.5-1% NaF or borax, 0.05-0.5% home use washing agent and pure water. The formula of the two agents could supply different low temperature range and could be used lonely. The invention could be used to keep food, drink fresh or transfer bacterin. It is low cost and simple formula.

Description

technical field [0001] The invention is a combined cold storage agent for a refrigerator, and relates to a device for extending the cold storage time of a refrigerator and a small-scale refrigeration equipment in a corresponding temperature range [0002] technology field. Background technique [0003] Energy storage is an important part of energy-saving work. Using refrigerator cold storage can 1) delay the temperature rise time of the refrigerator and reduce the temperature fluctuation in the refrigerator; 2) reduce the number of startups of the refrigerator compressor and save energy; 3) can be used as a rapid cooling and heat preservation beer, A lot of good things like options for drinks etc. [0004] The cold storage economizer currently used in refrigerators is a solid-liquid phase change heat exchanger contained in a closed container, or a mixture of solid-liquid and solid-solid phase change materials. The remarkable feature of the phase change cold storage system ...

Claims

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Application Information

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IPC IPC(8): C09K5/04
Inventor 刘益才
Owner 刘益才