Spraying type packed bed heat storage system and operating method thereof

A heat storage system and packed bed technology, applied in the field of heat storage systems, can solve the problems of high cost of liquid storage tanks, strong corrosion of molten salt heat storage, high cost of heat transfer oil heat storage, etc.

Active Publication Date: 2018-12-21
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing heat storage technology has shortcomings in various aspects: molten salt heat storage is highly corrosive and easy to solidify; superheated steam heat storage pressure is high, and the cost of the required liquid storage tank is too high; heat transfer oil heat storage cost is too high

Method used

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  • Spraying type packed bed heat storage system and operating method thereof
  • Spraying type packed bed heat storage system and operating method thereof
  • Spraying type packed bed heat storage system and operating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] figure 1 It is a schematic structural diagram of Embodiment 1 of the spray-type packed bed heat storage system of the present invention, wherein the heat transfer fluid of the solar collector and the spray-type packed-bed heat storage device are in direct contact heat exchange. Such as figure 1 As shown, the spray packed bed heat storage system of the present invention mainly includes a solar heat collector 101, two parallel internal heat preservation type spray packed bed heat storage devices 105, a heat exchanger 107, a heat regenerator 110, Condenser 111, low temperature liquid storage tank 103, high temperature liquid storage tank 104, high temperature pump 106, low temperature pump 102, liquid collection tank 112, voltage stabilizing system and filter 109, residential heating network 108.

[0087] The outlet of the solar heat collector 101 is communicated with the hot side inlet of the heat exchanger 107 through a main pipeline, and the hot side outlet of the heat...

Embodiment 2

[0095] Such as figure 2 As shown, it is embodiment 2 of the spray-type packed bed heat storage system of the present invention. This system mainly includes a solar heat collector 201, a spray-type packed-bed heat storage device 207, a heat exchanger 206, a steam generator 208, a return Heater 216, condenser 217, first low temperature liquid storage tank 203, second low temperature liquid storage tank 204, high temperature liquid storage tank 215, high temperature pump 214, low temperature pumps 202, 205, liquid collection tank 218, pressure stabilizing and filtering components 219. Steam power generation system. Among them, the solar heat collection system and the spray-type packed bed heat storage device are indirect heat exchange, and the heat is transferred through the heat exchanger 206 in the middle. The structure and working principle of the sprayed packed bed heat storage device 207 are the same as those of the sprayed packed bed heat storage device in Embodiment 1. ...

Embodiment 3

[0102] Such as image 3 As shown, it is embodiment 3 of the spray-type packed bed heat storage system of the present invention. This system mainly includes an industrial high-temperature furnace 301, a chimney 302, an air pump 303, a spray-type packed bed heat storage device 307, a heat exchanger 306, Steam generator 308, regenerator 316, condenser 317, low temperature liquid storage tank 304, high temperature liquid storage tank 315, high temperature pump 314, low temperature pump 305, liquid collection tank 318, pressure stabilizing and filtering components 319, steam power generation system 308 . Among them, the industrial high-temperature furnace waste heat flue gas system and the spray-type packed bed heat storage device are indirect heat exchange, and the heat is transferred through the heat exchanger 306 in the middle. The structure and working principle of the spray-type packed bed heat storage device 307 are the same as those of the spray-type packed-bed heat storage...

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Abstract

The invention discloses a spraying type packed bed heat storage system and an operating method thereof, which are used in the field of medium-high temperature heat energy storage. The spraying type packed bed heat storage system mainly comprises a spraying type packed bed heat storage apparatus, a liquid storage tank, a heat exchanger, a heat source supplying end, a heat source user end, a condenser, a liquid collection tank and the like. The system stores heat energy provided by the heat source supplying end in a solid heat storage medium in the packed bed through a liquid heat transfer medium during a heat storage stage, and releases the heat energy from the solid materials to generate electricity or supply heat during a heat utilization stage. The spraying type packed bed heat storage system and operating method have the advantages of being high in heat storage efficiency, high in heat energy grade, wide in applicable temperature field, low in cost, safe to operate and the like, areparticularly suitable for the fields of medium-high temperature solar thermal power generation and industrial high-temperature waste heat utilization, and can also complement the cascade energy utilization with large-scale physical energy storage system, such as a compressed air energy storage system, to improve energy utilization efficiency.

Description

technical field [0001] The invention relates to a heat storage system, in particular to a spray-type packed bed heat storage system and an operation method thereof, which are used in the field of medium-high temperature heat energy storage. In the heat storage stage, the system stores the heat energy provided by the heat source supply end in the solid heat storage medium in the packed bed through the liquid heat transfer medium; in the heat use stage, the heat energy in the solid material is released and used for power generation or heating . The spray-type packed bed heat storage system and operation method of the present invention have the advantages of high heat storage efficiency, high thermal energy grade, wide applicable temperature range, low cost, safe operation, etc., and are especially suitable for medium and high temperature solar thermal power generation and industrial high temperature waste heat utilization, etc. In other medium and high temperature heat storage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24S60/00F24S50/00F22B1/00F22B1/18F27D17/00F28D20/00F28F27/00
CPCF22B1/006F22B1/18F27D17/004F28D20/0056F28F27/00F27D2017/007F27D2017/006F28D2020/0065Y02E60/14
Inventor 谢宁宁王亮陈海生林曦鹏林霖于东
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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