Waste heat recovery type thermoelectricity cold jointly-supplying technology

A technology of combined heat, power and cooling, waste heat recovery, applied in heating methods, energy-saving heating/cooling, hot water central heating systems, etc. The effect of thermal area, alleviation of power shortage, huge economic and development value

Inactive Publication Date: 2008-01-23
葆光(大连)节能技术研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The cooling water waste heat belongs to low-grade heat energy, because it contains low , cannot be directly used for heating, and is basically wasted in the environment at present, and has not been effectively recycled.

Method used

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  • Waste heat recovery type thermoelectricity cold jointly-supplying technology

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Embodiment Construction

[0014] In Fig. 1, when supplying heat, the steam extracted from the steam turbine of the thermal power plant (1) enters the pipe (2), and is divided into two parts by flow regulation, and a part of the steam enters the absorption heat pump (6) through the pipe (15), after driving the heat pump The steam turns into high-temperature hot water and returns to the boiler through the pipeline (16) and the pipeline (3), and the heat pump condenser end raises the temperature of the heating return water in the pipeline (8) to 80°C and passes through the pipeline (7) and the pipeline (10). The heat supply and return water are mixed into the steam heat exchanger; another part of the steam enters the steam heat exchanger (12) through the pipe (13), and after heat exchange with the heat supply return water and the hot water prepared by the heat pump, it becomes high-temperature hot water. Return to the boiler through pipeline (14), pipeline (2). The high-temperature hot water exchanged by ...

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Abstract

The invention provides a waste-heat recovery thermal power refrigeration supply technology, which comprises an absorbing thermal pump unit, a thermal power plant, a residual or commercial building needing heating/refrigeration, a heat exchanger, a pipeline, and a cooling tower. When the thermal power plant supplies heat, steam is used to drive the absorbing thermal pump, the recovered waste heat from the circulation cooling water of turbine is used as low-temperature heat source, the heat-supplied area is increased without changing the installed capacity and the supplied steam quantity from an existing power generator, and the increased heat-supplied area is equivalent to the heat of not-consumed steam; when the thermal power plant supplies refrigeration, the absorbing thermal pump is driven by the surplus steam from the power plant, only slight amount of electric power is consumed, this will greatly reduce the shortage of power supply in summer for big and middle cities especially Beijing in China.

Description

Technical field [0001] The invention relates to the technology of using a steam-driven absorption heat pump to recover waste heat from the circulating cooling water of a power plant steam turbine for heating in winter and a steam-driven absorption heat pump for cooling in summer during the power generation process of a thermal power plant. Background technique [0002] In my country, combined heat and power and combined heat, power and cooling technologies are widely promoted because of their energy saving and environmental protection. [0003] The working principle of cogeneration heat supply is: when the steam extraction and condensing steam turbine unit generates power, it extracts a certain standard of high-temperature and high-pressure steam from the steam turbine, and directly converts it into high-temperature hot water through a steam-water heat exchanger and transports it to the building through pipelines. material heating. In this heat supply process, the steam in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D3/18F02G5/02
CPCY02T10/166Y02B30/12Y02E20/14Y02T10/12
Inventor 姚伟君
Owner 葆光(大连)节能技术研究所有限公司
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