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Civil energy and heat storage system and method based on ettringite

A heat storage system and ettringite technology are applied in the field of civil energy storage and heat storage systems based on ettringite, and can solve the problems of high cost of energy storage units, poor heat storage/release effect, and being susceptible to external influences, etc. Achieve the effect of reducing carbon emissions, easy phase transition conditions, and ensuring heat capacity

Pending Publication Date: 2022-07-22
SHANDONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a civil energy storage and heat storage system and method based on ettringite. Using ettringite as the energy storage material, the phase change condition is easy to achieve, and the cost of use is reduced. At the same time, the heat capacity is guaranteed, and three independent circulation systems are set up to control the phase change environment in the energy storage room, which solves the problem of high cost of energy storage units in existing heat storage systems, poor heat storage / radiation effect, and susceptibility to external influences The problem

Method used

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  • Civil energy and heat storage system and method based on ettringite
  • Civil energy and heat storage system and method based on ettringite
  • Civil energy and heat storage system and method based on ettringite

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Embodiment 1

[0039] In a typical embodiment of the present invention, as Figure 1-Figure 6 As shown, a civil energy storage and heat storage system based on ettringite is proposed, including an energy storage chamber 1, a water circulation system, a thermal circulation system and an air circulation system.

[0040] The three circulation systems exist independently. The energy storage chamber 1 is connected with the thermal circulation system and the gas circulation system respectively through pipes, and the water circulation system is connected with the pipes of the thermal circulation system.

[0041] Among them, there are multiple energy storage chambers 1, and each energy storage chamber 1 is correspondingly provided with a thermal cycle system and a gas cycle system, and the thermal cycle system and the gas cycle system among the multiple energy storage chambers 1 do not affect each other, that is, : The thermal circulation system and gas circulation system of each energy storage cham...

Embodiment 2

[0083] In another typical embodiment of the present application, a method for using a civil energy storage and thermal storage system based on ettringite as described in Embodiment 1 is provided, as follows:

[0084] 1) Prepare, assemble and inspect the device;

[0085] First prepare the energy storage sheet 3. The material for the energy storage sheet 3 is a binary mixture of sulfoaluminate cement and gypsum. The mixing ratio of sulfoaluminate cement and gypsum should be controlled between 8:2 and 7:3. Before mixing, the two materials should be fully mixed to ensure full contact during hydration. The water-cement ratio should be controlled between 7.4 and 7.7. In order to ensure a sufficient hydration reaction and obtain a sufficient amount of ettringite, water should be added before mixing. (demineralized and desalinated pure water) and then add the mixture of sulfoaluminate cement and gypsum, and fully stir to obtain cement slurry.

[0086] In order to prevent the energy s...

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Abstract

The invention discloses a civil energy and heat storage system and method based on ettringite, and belongs to the technical field of phase change heat storage, the civil energy and heat storage system comprises a plurality of energy storage chambers, each energy storage chamber is connected with a heat circulation system and a gas circulation system, and the heat circulation system and the gas circulation system of each energy storage chamber are mutually independent; the energy storage chamber is provided with a plurality of energy storage groups, each energy storage group is provided with a plurality of energy storage units in a stacked mode, each energy storage unit comprises a pipe piece, the two sides of each pipe piece are connected with energy storage pieces, and the energy storage pieces take ettringite as an energy storage material.

Description

Technical field [0001] The present invention relates to the technical field of phase change thermal storage, and in particular to a civil energy storage and thermal storage system and method based on ettringite. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Seasonal changes and day and night changes often lead to uneven distribution of heat. In northern areas, winter temperatures are generally low, while summers are very hot. The temperature may be very high during the day, but additional heat is needed for heating, bathing, etc. at night. If the heat during the surplus period is stored through energy storage materials and used during the period when heating is needed, a reasonable distribution of energy can be achieved, thereby achieving the purpose of saving energy and reducing carbon emissions. [0004] As an energy storage material, it is ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D20/00
CPCF28D20/003
Inventor 张洪智马文强凌一峰商淑杰马川义孙仁娟葛智管延华冯玉洁和彦辰王丽君
Owner SHANDONG UNIV
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