Method for enhancing vacuum of steam condenser

A condenser and vacuum technology, applied in steam/steam condensers, lighting and heating equipment, etc., can solve unsatisfactory problems and achieve the effects of saving power generation costs, significant economic benefits, and reduced coal consumption

Inactive Publication Date: 2010-01-13
曾华
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The technicians in the power plant (jet vacuum pump) use the water in the jet pool to maintain the water temperature in the jet pool, so as to ensure that the vacuum of the condenser remains constant; the water ring vacuum pump uses (cooler) to cool the working water in the vacuum pump to ensure The suction capacity of the water ring vacuum pump can maintain

Method used

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  • Method for enhancing vacuum of steam condenser
  • Method for enhancing vacuum of steam condenser
  • Method for enhancing vacuum of steam condenser

Examples

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Example Embodiment

[0024] figure 1 This is a typical vacuum system for the condenser of a condensing steam turbine generator unit. This picture shows the vacuum system for 300MW and 600MW units. The vacuum system for 200MW units only has two water jet vacuum pumps (omitted).

[0025] The method of installing and implementing the cooler of the present invention:

[0026] Such as figure 2 , image 3 , Install the cooler 2 on the pipeline 7 between the vacuum pump 5 and the condenser 1, and try to be as close as possible to the vacuum pump inlet valve 6. The air side inlet 12 of the cooler is connected to the condenser vacuum pipe 7; the air side outlet 13 of the cooler is connected to the front pipe of the vacuum pump inlet valve; the air side inlets 12 and 13 of the cooler are equipped with electric doors 26, 27 and side Road electric door 28; the air side of the cooler is installed with a condensate recovery water storage tank 3, which is connected to the condenser hot well 14 through a water seal ...

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Abstract

The invention discloses a method for enhancing vacuum of a steam condenser. A cooler is arranged on a pipeline between the steam condenser and a vacuum pump, a condensate water recovery and storage tank is installed at the gas side of the cooler, and the water storage tank is connected with a hot well of the steam condenser through a water seal. Only when temperature of the outlet of the cooler is kept at about 15 DEG C, the steam condenser vacuum can approach ultimate vacuum of the vacuum pump. In summer, if the installed cooler is put into operation, the steam condenser vacuum is enhanced to the ultimate vacuum of the vacuum pump with increase of about 2 kpa, therefore, by calculating according to that the steam condenser vacuum is enhanced by 1kpa, the coal consumption is lowered by 1.97g/kwh, and a machine set of 600 MW annually generates power for 300 days on average, the invention can save coals for 17020.8 t every year; and if the price of the coal is 500 yuan/t, the invention can save the generation cost for 8510400 yuan every year, thereby having remarkable economic benefit.

Description

technical field [0001] The invention relates to a vacuum pumping system for a condenser of a condensing steam turbine generator set in a power plant. Specifically, it is a method of increasing the vacuum of the condenser. Background technique [0002] The quality of the vacuum in the condenser of the condensing steam turbine generator set directly affects the economical operation of the steam turbine in the power plant. There are many factors that affect the vacuum of the condenser, among which the temperature of the water used in the jet pool of the water jet vacuum pump and the temperature of the working water used in the water ring vacuum pump are one of the factors that affect the vacuum of the condenser. The technicians in the power plant (jet vacuum pump) use the water in the jet pool to maintain the water temperature in the jet pool, so as to ensure that the vacuum of the condenser remains constant; the water ring vacuum pump uses (cooler) to cool the working water i...

Claims

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Application Information

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IPC IPC(8): F28B9/00F28B9/08F28B9/10
Inventor 曾华
Owner 曾华
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