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Recycling system for exhaust steam of electric power plant

A waste steam recovery and power plant technology, applied in steam generation, feed water heaters, preheating, etc., can solve problems such as wasting energy, encroaching on fertile land, and environmental heat pollution

Inactive Publication Date: 2009-11-04
陈万仁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process method not only wastes a lot of energy but also causes thermal pollution to the environment; because the exhaust steam condensation system currently used needs to occupy a large area of ​​land, it has encroached on a large area of ​​fertile land

Method used

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  • Recycling system for exhaust steam of electric power plant
  • Recycling system for exhaust steam of electric power plant
  • Recycling system for exhaust steam of electric power plant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A waste steam recovery and reuse system in a power plant includes a waste steam evaporator 1 , a compressor 2 and a condenser 3 . There is a medium pipeline 5 connecting them between the exhaust steam evaporator 1 and the compressor 2, a medium pipeline 6 connecting them between the compressor 2 and the condenser 3, and a medium pipeline 6 between the condenser 3 and the exhaust steam evaporator 1 There are media conduits 8 that make them communicate. An electronic expansion valve 4 is installed on the medium pipeline 8 between the condenser 3 and the exhaust steam evaporator 1, and the electronic expansion valve 4 is connected to the medium pipeline 5 installed between the exhaust steam evaporator 1 and the compressor 2 through a capillary tube 17. The temperature measuring point 7 is connected; the exhaust steam evaporator 1 has a exhaust steam inlet pipe 11 and a condensed water outlet pipe 14a connected to it, and the condenser 3 has a water inlet pipe 14 and a boil...

Embodiment 2

[0016] Embodiment 2: The structure of this embodiment is similar to that of Embodiment 1, except that a water-increasing pipeline 15 is connected to the water inlet pipe 14 that communicates with the condenser 3, and other structures are the same as Embodiment 1.

Embodiment 3

[0017] Embodiment 3: The structure of this embodiment is similar to that of Embodiment 1, except that the exhaust steam inlet pipe 11 connected to the exhaust steam evaporator 1 is connected to a water supply pipe 15a, and the water supply pipe 15a is installed in the electric regulator On the exhaust steam inlet pipe 11 on the inlet side of the valve 9.

[0018] Other structures are the same as in Embodiment 1.

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PUM

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Abstract

The invention relates to a recycling system for the exhaust steam of an electric power plant, comprising an exhaust steam evaporator, a compressor and a condenser. Medium pipelines are respectively arranged among and communicated with the exhaust steam evaporator, the compressor and the condenser, an expansion valve is mounted on a medium pipeline between the exhaust steam evaporator and the condenser and connected with a temperature-measuring point on a medium pipeline mounted between the exhaust steam evaporator and the compressor by a capillary tube, and the exhaust steam evaporator is provided with and communicated with an exhaust steam inlet pipe and a condensing water outlet pipe; the condenser is provided with and communicated with a water inlet pipe and a boiler water-replenishing pipeline, and the water inlet pipe is communicated with the condensing water outlet pipe on the exhaust steam evaporator and provided with a pressurized water pump; the exhaust steam inlet pipe is provided with an electric adjusting valve, and a control cabinet connected with a power line is connected with the compressor, the expansion valve and the electric adjusting valve by a control line and a power line pencil. The system has simple structure, convenient mounting and small floor area, can fully utilize heat and moisture brought by the exhaust steam, saves energy sources and water sources and can not bring environmental pollution.

Description

technical field [0001] The utility model belongs to a raw material and waste heat recovery and reuse system, in particular to a power plant waste steam recovery and reuse system. Background technique [0002] During the power generation process, a large amount of low-pressure steam (exhaust steam) will be generated, which contains a large amount of heat. At present, the power plant uses water-cooled condensation to condense the exhaust steam on the one hand. The condensed heat is brought into the water cooling tower by the cooling water. Driven by dry air, the heat is taken away by the evaporation of water and discharged into the atmosphere; on the other hand, a certain amount of water needs to be supplemented to maintain the stable operation of the boiler, and it is necessary to make the supplemented water temperature meet the requirements. A large amount of steam is drawn from the steam pipeline of power generation to preheat the water that is about to enter the boiler. T...

Claims

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Application Information

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IPC IPC(8): F22D1/34F22D11/06
Inventor 陈万仁李华
Owner 陈万仁