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A central heating system for combined heating of solar energy and low-grade industrial waste heat

An industrial waste heat and central heating technology, applied in hot water central heating system, heating system, energy industry, etc., can solve the problems of unstable heating load, low-grade industrial waste heat utilization efficiency and low proportion of clean energy heating, and achieve Achieve comprehensive utilization efficiency, solve the problem of waste heat utilization, and increase the effect of pipeline network transmission and distribution ratio

Active Publication Date: 2020-04-14
NORTHEASTERN UNIV LIAONING
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Problems solved by technology

[0005] In order to solve the problem of unstable heating load when the existing low-grade industrial waste heat is used for heating, low-grade industrial waste heat utilization efficiency and low proportion of clean energy heating, the present invention provides a combined heating system based on solar energy and low-grade industrial waste heat

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  • A central heating system for combined heating of solar energy and low-grade industrial waste heat
  • A central heating system for combined heating of solar energy and low-grade industrial waste heat
  • A central heating system for combined heating of solar energy and low-grade industrial waste heat

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Embodiment Construction

[0041] In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0042] Such as figure 1 The shown main control device 11 adopts a PLC controller or other controllers, and the main control device 11 receives data detected by sensors such as the first mass flow sensor 14, the second mass flow sensor 15, the indoor temperature detector 8, and the temperature detector 7. Signals are sent to actuators such as the first electromagnetic three-way valve 12 and the electromagnetic three-way valve 9 of the first cascade heat exchange station to make them act.

[0043] The heat storage unit includes a solar heat collector 5, a heat accumulator 1, a first mass flow sensor 14, a first circulating water pump 17, a second circulating water pump 18, a third circulating water pump 6, a first electromagnetic three-way valve 12, a first Temp...

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Abstract

The invention provides a new heating system that combines solar energy with industrial waste heat resources, and relates to the technical field of new centralized heating. The system includes a heat source station unit, a thermal storage unit, a cascade heat exchange station unit, a user unit, a primary network circulation pipeline and a main control device. This system uses low-temperature industrial waste heat as the main heat source. After exchanging heat with the industrial waste heat, the primary network circulating water is fully cooled using the cascade heat exchange method and then returned to the heat source station unit, effectively improving the utilization efficiency of circulating water. When the load of the main heat source fluctuates, solar heat storage can be used to supplement the energy in a timely manner to stabilize the working conditions and ensure user comfort. This system not only overcomes the problem of load fluctuation when low-grade industrial waste heat is used for heating, but also solves the problem of solar heating being affected by weather. The advantages of the two complement each other and are of great significance to saving energy and protecting the environment.

Description

technical field [0001] The invention relates to the technical field of novel central heating, in particular to a central heating system for combined heating of solar energy and low-grade industrial waste heat. Background technique [0002] In the production process of industrial enterprises, it is inevitable to generate a large amount of heat energy that is discharged into the environment without being utilized, which is called low-grade industrial waste heat. Taking the iron and steel industry as an example, its sources mainly include slag waste heat, product sensible heat, flue gas waste heat, etc. According to statistics, low-grade industrial waste heat accounts for about 60% of the total industrial waste heat, but it is not effectively utilized, which not only leads to the failure of energy utilization efficiency of enterprises, but also seriously affects the natural ecological environment around enterprises. At present, some central heating systems solve the problem of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B27/00F24D3/02F24D12/02F24D19/10
CPCF24D3/02F24D12/02F24D19/1078Y02B10/20Y02B10/70Y02B30/00Y02P80/20
Inventor 张琦杨仕堂王小壮赵涛
Owner NORTHEASTERN UNIV LIAONING
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