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Method to generate electricity or supply heat by latent heat of turbine discharge

A steam turbine and latent heat technology, applied in steam engine installations, machines/engines, mechanical equipment, etc., can solve the problems of large investment, uneconomical, and unenvironmental protection of cooling towers, saving investment and space, saving heat and electricity, and reducing coal consumption Effect

Inactive Publication Date: 2010-06-16
周现华
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process not only wastes a lot of heat energy, but also requires a lot of investment and takes up a lot of space to build a cooling tower. At the same time, it needs to consume 1% to 3% of the total power generation to circulate the cooling water, which is extremely uneconomical and environmentally friendly.

Method used

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  • Method to generate electricity or supply heat by latent heat of turbine discharge
  • Method to generate electricity or supply heat by latent heat of turbine discharge
  • Method to generate electricity or supply heat by latent heat of turbine discharge

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Embodiment Construction

[0014] exist figure 1 In the process, the exhaust steam of the steam turbine is introduced into the evaporator (5) in the absorption heat pump cycle, and the heat pump working fluid is used to absorb the latent heat released by the exhaust steam of the steam turbine, which is upgraded to a high-grade heat source through the absorption heat pump cycle, and the heat energy is transferred to kalina Working fluid in the power cycle. The working fluid in the Kalina power cycle is heated in the heat pump cycle absorption tower (6), heated in the second stage in the condenser (2), and heated in the third stage in the heat exchanger (10) to become superheated steam , into the steam turbine in the kalina cycle to generate power. The circulating working medium of the absorption heat pump is a non-azeotropic mixed working medium pair, and the heat energy required for the separation of the non-azeotropic mixed working medium pair is provided by the low-grade steam extracted by the steam ...

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Abstract

A method to generate electricity or supply heat by latent heat of turbine discharge. To replace a condenser in the original generating system with evaporator (5) in the absorption heat pump cycle and to use heat pump working substance to absorb the latent heat released by the turbine discharge in the evaporator of the heat pump system. The latent heat is elevated by the absorption heat pump cycle to become high grade heat source and can pass heat energy to the working substance in kalina power cycle (12).The working substance in the kalina power cycle receives the first-level heating up in heat pump cycle absorption tower and the second-level heating up in the condenser and the third-level in the heat exchanger before turning into steam gas which then enters the steam turbine in the kalina cycle to generate power. By employing the method, the electric power plant can increase the generating efficiency by more than 3%, thus realizing energy conservation and environment protection.

Description

technical field [0001] The invention relates to a method for generating electricity or supplying heat by utilizing latent heat exhausted by a steam turbine. Background technique [0002] In the power plant, the latent heat contained in the exhaust steam of the steam turbine is very considerable, which is more than 50% of the total heat energy absorbed by the boiler. At present, this part of latent heat is not fully utilized in power plants, and it is necessary to invest in cooling towers and use a large amount of cooling water to condense it into saturated water. This process not only wastes a lot of heat energy, but also requires a lot of investment and takes up a lot of space to build a cooling tower. At the same time, it needs to consume 1% to 3% of the total power generation to circulate the cooling water, which is extremely uneconomical and environmentally friendly. Russian engineer Alexander Kalina proposed at the end of the last century to use a variable concentratio...

Claims

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Application Information

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IPC IPC(8): F01K23/10F01K27/00
Inventor 周现华
Owner 周现华
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