Preparation method of inorganic salt-ceramic high-temperature phase change composite heat storage material

A composite heat storage material and high temperature phase change technology, which is applied in the field of preparation of inorganic salt-ceramic high temperature phase change composite heat storage materials, can solve the problems of high material cost, poor thermal conductivity of materials, loss of phase change materials, etc. Low cost, strong adhesion, high phase transition temperature
CN113174239AInactive Publication Date: 2021-07-27NORTHWEST BRANCH OF CHINA DATANG CORP SCI & TECH RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHWEST BRANCH OF CHINA DATANG CORP SCI & TECH RES INST
Publication Date
2021-07-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of an inorganic salt-ceramic high-temperature phase change composite heat storage material. The preparation method is specifically implemented according to the following steps: pouring 25-30% of a phase change material NaCl and 69-74% of a ceramic matrix material SiC into a mortar, fully mixing and grinding to fully and uniformly mix the materials, and adding 0.5-1% of aluminum dihydrogen phosphate as a binder in the grinding process to obtain a mixture; pouring the ground mixture into a grinding tool, pressurizing by using a powder tablet press in a one-way pressurizing manner, and then pressing to obtain a cylindrical blank; and putting the blank obtained after compression molding into a pit type resistance furnace, sintering, and carrying out furnace cooling to obtain the NaCl-SiC composite phase change heat storage material. According to the preparation method of the inorganic salt-ceramic high-temperature phase-change composite heat storage material, the problems of serious loss, high material cost and poor heat-conducting property of a phase-change material in the preparation process in the prior art are solved.
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Description

technical field

[0001] The invention belongs to the technical field of heat storage material preparation methods, and relates to a preparation method of an inorganic salt-ceramic high-temperature phase change composite heat storage material. Background technique

[0002] In the process of energy development and utilization, there is often an imbalance between supply and demand, resulting in irrational use of energy and energy waste. Heat storage technology is to convert various forms of energy into heat energy for storage, and release the stored heat when energy is needed. Phase change heat storage is a kind of heat storage technology, which has high heat storage density and high heat storage capacity. The thermal temperature is stable and easy to control. Heat storage materials are the core of heat storage technology, and the preparation of heat storage materials with high heat storage performance has become the key to the development of heat storage technology. Inorganic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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