Thermodynamic system for comprehensive utilization of latent heat of exhaust steam of steam turbine

Abstract

The invention discloses a turbine dead steam latent heat comprehensive utilization thermodynamic system which comprises a turbine, generators and a condenser hot well, wherein an exhaust opening at one end of the turbine is connected with the condenser hot well; the condenser hot well is connected with a condenser; the condenser is connected with a condensed water distributor; one end of the condenser is connected with a low-temperature multi-effect structure; the other end of the condenser is connected with seawater; seawater is desalinated through the low-temperature multi-effect structure; the low-temperature multi-effect structure is connected with the condensed water distributor and a concentrated seawater discharging pipeline; the condensed water distributor discharges part of fresh water; an extracting opening is formed in the left side of the turbine; the extracting opening and the exhaust opening are connected with the air inlet of a steam ejector respectively; the air outlet of the steam ejector is connected with the air inlet of the low-temperature multi-effect structure; mixed steam is adopted as a heat source for seawater desalination. The turbine dead steam latent heat comprehensive utilization thermodynamic system utilizes the condenser dead steam latent heat resource and solves the problems that a power plant needs to invest a lot of fund to establish a cooling device and waste is caused by electric energy application.

Description

technical field [0001] The invention relates to the technical field of steam turbines, in particular to a thermodynamic system for comprehensive utilization of latent heat of exhaust steam of steam turbines used in conjunction with steam turbines, and is suitable for comprehensive utilization of latent heat of exhaust steam of steam turbines in thermal power stations. Background technique [0002] Energy is the material basis for the survival of human beings. The development of human society is inseparable from high-quality energy and advanced science and technology. In today's world, the development of energy is a common concern of the whole world and all mankind. It restricts and affects the world's social economy. important issue of development. At present, the world is facing an energy crisis, and China's energy crisis is even more serious. At the same time, the world's fresh water resources are seriously scarce, and about 1 / 3 of the world's people live in areas with mod...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the above-mentioned problems existing in the prior art, and to provide a thermodynamic system for the comprehensive utilization of the latent heat of the exhaust steam of the steam turbine; Most cooling water systems can also desalinize seawater, alleviate the shortage of global freshwater resources, improve thermal efficiency, reduce heat loss, and effectively reduce costs while ensuring maximum performance. The cooling water of the condenser in the power plant needs to be cooled down so that it can be recycled, and a large amount of money needs to be invested in the construction of cooling devices, as well as the use of electric energy in the form of mechanical ventilation towers during operation, resulting in further waste The problem

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