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Power plant condensing heat recycle system

A technology for condensation heat and power plants, which is applied in the field of waste heat heat recovery devices in power plants, can solve the problems of difficult recovery and utilization of condensation waste heat, and achieve the effect of high thermal energy recovery and utilization rate

Inactive Publication Date: 2013-03-27
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that condensation waste heat is difficult to recover and utilize in the prior art, the present invention provides a system for recovering and utilizing condensation heat in power plants using heat pump technology

Method used

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  • Power plant condensing heat recycle system

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Embodiment Construction

[0015] Attached below figure 1 The present invention is further described in detail with the specific embodiment: a power plant condensation heat recovery and utilization system, such as figure 1 As shown, it includes steam pipeline 1, cooling water circulation pipeline 2, air extraction pipeline 3 and condensate water pipeline 4,

[0016] The steam in the steam pipeline 1 is input into the steam turbine 11, and the exhaust steam generated by the steam turbine 11 is sent to the condenser 12, and the steam passes through the condenser 12 to transfer heat energy to the cooling water in the cooling water circulation pipeline 2, and then condenses The water is discharged, and the temperature of the condensed water is about 40°C at this time, and it is sent to the condensed water pipeline 4.

[0017] The cooling water circulation pipeline 2 provides power for the circulation of the cooling water through the cooling circulation pump 21, so that the cooling water in the circulating ...

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Abstract

The invention relates to heat recycle device, and discloses a power plant condensing heat recycle system. The power plant condensing heat recycle system comprises a steam pipeline, a cooling water circulating pipeline and an exhaust pipeline, and further comprises a condensing water pipeline, wherein the condensing water pipeline is connected with the steam pipeline and the exhaust pipeline, and condensing water drained from the steam pipeline and the exhaust pipeline flows into the condensing water pipeline, and then is conveyed to a boiler as boiler feedwater after the condensing water absorbs heat and heats up when passes through an absorption type heat pump. The power plant condensing heat recycle system achieves condensing heat recycle by the heat exchanging manner of the absorption type heat pump, supplies the condensing water which reaches a certain water temperature as the boiler feedwater to the boiler and recycles waste heat in the condensing water of a power plant, and therefore the power plant condensing heat recycle system has the advantages of being high in heat energy recycle utilization rate, energy-saving and environment-protective and the like.

Description

technical field [0001] The invention relates to a waste heat recovery device of a power plant, in particular to a condensation heat recovery and utilization system of a power plant. Background technique [0002] Condensation heat of thermal power plants is discharged into the atmosphere through cooling towers or air-cooled islands, resulting in huge heat loss, which is the main reason for the low efficiency of energy use in thermal power plants. It not only causes a lot of energy and water waste, but also seriously pollutes the atmosphere. The evacuation of condensation heat in thermal power plants is a common problem in our country and even in the world. It is a waste and helpless. However, with the development of heat pump technology, especially the advent of large-scale high-temperature water source heat pumps, it will become possible to recover the condensed waste heat of generating units. Contents of the invention [0003] Aiming at the problem that condensation wast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22D11/06
Inventor 李同强
Owner ZHEJIANG GONGSHANG UNIVERSITY