Hydrate energy storage temperature control material and preparation method thereof

A technology of hydrate and hydrate formation, applied in heat exchange materials, chemical instruments and methods, liquid spraying equipment, etc., can solve the problems of easy phase separation and low thermal conductivity, and achieve easy nucleation and high thermal conductivity , evenly distributed effect

Active Publication Date: 2022-01-04
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, traditional microcapsule phase change materials have some inherent disadvantages: low thermal conductivity, easy phase separation, etc.

Method used

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  • Hydrate energy storage temperature control material and preparation method thereof
  • Hydrate energy storage temperature control material and preparation method thereof
  • Hydrate energy storage temperature control material and preparation method thereof

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Embodiment Construction

[0029] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and technical solutions.

[0030] Taking cyclopentane hydrate as an example, a method for preparing a hydrate energy storage and temperature control material, the steps are as follows:

[0031] (1) Formation of hydrates: first wash and rinse the reactor with deionized water three times, pour the water into the reactor and seal it, and empty the headspace, vacuumize the reactor for 30 minutes with a vacuum pump, and remove the The air is vented and the vacuum pump is then turned off. The reactor is equipped with a temperature sensor to measure the temperature in the reactor, and a pressure sensor to measure the pressure in the reactor. The pressure and temperature signals are collected by the data recording system and collected by the personal computer. Since the liquid refrigerant cyclopentane is used, the cyclopentane refrigerant c...

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Abstract

The invention discloses a hydrate energy storage temperature control material and a preparation method thereof. The material contains coolant hydrate and a cross-linked polymer. The preparation process first prepares coolant hydrate in an autoclave, and then crushes and sieves the hydrate particles; then uses an electrostatic spraying device to evenly coat the polystyrene suspended ultrafine powder on the surface of the hydrate particles, and then puts it into the plasma In the body instrument, polystyrene is modified to form free radicals on the surface of polystyrene powder. Finally, under the irradiation of the high-pressure mercury lamp of the UV lighting system, the monomer is grafted and polymerized with the free radical on the surface of polystyrene to stabilize the structure of the material and make the final product. The invention prepares hydrate energy storage and temperature control materials with good stability, and provides a method for preparing various types of coolant hydrate materials. The product can fully utilize the advantages of hydrate energy storage and temperature control, and can periodically It can be used in various fields such as construction and refrigeration.

Description

technical field [0001] The invention belongs to the field of energy utilization, and in particular relates to a hydrate energy storage temperature control material and a preparation method thereof. Background technique [0002] Thermal energy is an important energy source that plays an irreplaceable role in human production and life. There are generally three methods of thermal energy storage: sensible heat storage, latent heat storage, and thermochemical storage. Among them, latent heat storage is a low-cost heat storage method, which uses the solid-liquid phase transition of phase change materials to absorb or release heat to achieve the purpose of heat storage and energy storage. It is the most effective thermal energy storage method, and can provide higher heat storage density at a smaller heat storage and discharge interval temperature. Materials used for thermal energy storage are called phase change materials, and are now widely used in construction, refrigeration, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/06B05B5/08B05D1/06
CPCC09K5/066B05D1/06B05B5/081B05B5/084Y02E60/14C09K5/063B05B5/032
Inventor 赵佳飞杨铭昭董宏生宋永臣史全杨磊张伦祥凌铮李洋辉刘卫国
Owner DALIAN UNIV OF TECH
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