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Phase change cold storage agent for air conditioner and its producing method

A phase-change cold storage agent and air conditioner technology, which is applied in chemical instruments and methods, heat exchange materials, etc., can solve the problems of low effective efficiency, unfavorable evaporation temperature of air conditioner evaporators, and ice precipitation, and achieves simple configuration and cold storage. Inexpensive agent, the effect of expanding the scope of use

Inactive Publication Date: 2007-04-11
DONGGUAN GUANGDA REFRIGERATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the above-mentioned defects in the prior art: for the cold storage agents currently used in air-conditioning water storage and common ice systems, there are problems such as low useful efficiency, ice-separation phenomenon, and unfavorable adjustment of the evaporation temperature of the air-conditioning evaporator. And design a phase change cold storage material that uses different ratios of phase change materials to adjust the phase change temperature in the same cold storage air conditioning system, thereby significantly improving the useful efficiency of the system, basically eliminating the phenomenon of ice formation, and maintaining the phase change during the phase change process. Hydrated Salt Coolant with Variable Rate Uniformity

Method used

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  • Phase change cold storage agent for air conditioner and its producing method
  • Phase change cold storage agent for air conditioner and its producing method

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Embodiment 1

[0030] Implementation example one: provide a kind of air-conditioning phase change cool storage agent: it is made of 3%KCl+96%H 2 O+0.3% titanium dioxide nano-scale powder (particle diameter is 50-200 microns)+0.3% sodium fluoride crystal+0.4% super washing powder composition, its latent heat of phase transition is 289J / g and main phase transition temperature is -5°C , and its corresponding ice-making process curve is shown in Figure 1.

Embodiment 2

[0031] Implementation example two: provide a kind of air-conditioning phase change cold storage agent: it is made of 4%KCl+95.3%H 2 O+0.3% titanium dioxide nanometer powder (particle diameter is 50-200 microns)+0.4% household detergent. The corresponding ice-making process curve is shown in Figure 2.

[0032] The air-conditioning phase-change cool storage agent has a phase-change temperature consistent with the working conditions of the air-conditioner, has relatively high latent heat of phase change, basically has no supercooling and phase separation, is non-toxic, non-corrosive, and has stable performance and good repeatability. It can overcome the disadvantages of low cold storage density of water storage system and low storage temperature of ice storage system, improve the storage capacity and efficiency of cold storage air conditioning system, reduce the volume and cost of cold storage device, and improve the economy of cold storage air conditioning system.

[0033] Prov...

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Abstract

The present invention discloses one kind of phase change cold accumulating agent for air conditioner and its production process. The phase change cold accumulating agent consists of potassium chloride 1-4 wt%, nucleator 0.1-0.5 wt%, surfactant 0.05-0.5 wt%, titania grain as heat conducting enhancer 0.01-1 wt% and pure water for the rest, and has phase change temperature region of -1 deg.c to -8 deg.c. The phase change cold accumulating agent has the advantages of simple recipe, low cost, long cold releasing time, etc; and using the phase change cold accumulating agent in air conditioner can reach the aims of 'removing peak to fill the valley', raising efficiency and saving energy.

Description

Technical field [0001] The invention relates to a phase-change cold storage agent for cold storage air conditioners, in particular to a phase change cold storage agent that can be used for cold storage air conditioners and small-scale refrigeration equipment in a corresponding temperature range to shift peaks and fill valleys or prolong cold storage time, and also relates to a The method for manufacturing the phase-change cold storage agent. technical background [0002] my country is a country with relatively tight energy supply. Although the government has invested a lot of financial resources in the construction of power plants, with the development of modern industry and the improvement of people's living standards, the power consumption of refrigeration and air conditioning in large and medium-sized cities is increasing day by day, so there are still power supply problems. There is a contradiction between high peaks and low valleys. To solve the problem of power shortag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/02
Inventor 刘益才刘怡
Owner DONGGUAN GUANGDA REFRIGERATION
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