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Seasonal heat storage system for exchanging heat by utilizing buried pipe

A technology of buried tube heat exchanger and heat storage system, which is applied in the field of seasonal heat storage system and its heat transfer model, can solve problems such as poor practicability and economy, and achieve the effect of increasing the temperature difference between inlet and outlet

Active Publication Date: 2012-09-26
山东中瑞新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the practicability and economical efficiency of the above methods are very poor.

Method used

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  • Seasonal heat storage system for exchanging heat by utilizing buried pipe
  • Seasonal heat storage system for exchanging heat by utilizing buried pipe
  • Seasonal heat storage system for exchanging heat by utilizing buried pipe

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Embodiment Construction

[0071] The specific implementation of the present invention will be further described below in conjunction with accompanying drawing:

[0072] A seasonal heat storage system using buried pipes for heat exchange, which includes a large amount of rock and soil mass, and a buried pipe heat exchanger composed of several buried pipes, through drilling holes in the rock and soil mass Place the buried pipe heat exchanger in the rock and soil mass. The buried tube heat exchanger exchanges heat with the rock and soil through the buried tube to realize heat storage and heat extraction; at the same time, it can periodically switch between the heat source and the heat user through the pipeline, so as to store the heat energy for a certain period of time and then reuse it. Provides functions for hot users.

[0073] The buried pipe heat exchanger realizes the heat transfer between the system and the earth through the flow of water or other circulating fluid in the closed buried pipe. The ...

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Abstract

The invention discloses a seasonal heat storage system taking rock soil as heat storage media and taking a buried pipe buried in rock soil as a heat exchange means as well as a heat transfer model thereof. Compared with other heat storage modes, the heat storage system has the characteristics of high heat storage quantity, long heat storage cycle, less heat loss, low cost per unit of heat storage quantity and high adaptability. The heat storage system also can be used by combining with a heat pump, and also the heat storage quantity and heat storage temperature difference can be enlarged further. During the operation of the heat storage working conditions, the system can partially replace the traditional cooling tower, and the water utilization conservation of a cooling tower is achieved. The seasonal heat storage technology for exchanging heat by utilizing the buried pipe provides economic and reasonable technique means for utilizing low-grade heat energy of industrial residue heat, solar energy and the like in a staggered seasonal mode. The invention also discloses a quasi-stable-state heat transfer model of heat transfer analysis by utilizing the seasonal heat transfer system for exchanging heat by the buried pipe, and the theory basis for the design and calculation is provided.

Description

technical field [0001] The invention relates to a seasonal heat storage system in which underground pipes are buried in rock and soil as a geothermal heat exchanger and a heat transfer model thereof, belonging to the fields of energy engineering, building environment and equipment engineering and related heat transfer. Background technique [0002] At present, in the heating supply of cities and towns in northern my country, coal or gas is still the main way of heating heat source through direct combustion of boilers to prepare hot water, accounting for more than 65% of the heating building area. This is actually exchanging high-grade heat energy for low-grade heat, resulting in Huge loss of usable energy. However, in my country's four major energy-intensive industries (steel, nonferrous metals, chemicals, and building materials), the energy heat utilization efficiency is only 30% to 60%, and 40% to 70% of the energy consumed is discharged in the form of low-grade heat. About...

Claims

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Application Information

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IPC IPC(8): F28D20/00
CPCY02E70/30Y02E60/142Y02E60/14
Inventor 方肇洪赵强张方方
Owner 山东中瑞新能源科技有限公司
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