Pressurization and condensation thermal energy power system utilizing thermal drained water of nuclear power station

Abstract

The invention discloses a pressurization and condensation thermal energy power system utilizing thermal drained water of a nuclear power station. The pressurization and condensation thermal energy power system comprises a heat collecting device, a gasifying device, a turbine, a condensing device and a one-way hydraulic pump, wherein the heat collecting device, the gasifying device, the turbine, the condensing device and the one-way hydraulic pump circularly communicate in sequence through a circulating pipeline. Circulating working media are contained in the circulating pipeline. The heat collecting device and the gasifying device are mounted in a thermal drained water channel of the nuclear power station. The condensing device is mounted in a low-temperature deep-water zone and comprises a condensing pipe, a cooling fan and a pressurization mechanism, wherein the pressurization mechanism is mounted at the middle end of the condensing pipe and comprises a pressurization turbine and a turbine pressure regulator, and the turbine pressure regulator is connected with the pressurization turbine in a controlling mode. The pressurization and condensation thermal energy power system utilizing thermal drained water of the nuclear power station has a high condensing rate and can reduce condensation energy discharge and improve thermal energy conversion efficiency, operation is stable, and power is adjustable.

Description

technical field [0001] The invention belongs to the field of energy utilization equipment, in particular to a pressurized condensation thermal energy power system utilizing thermal drainage of nuclear power plants. Background technique [0002] Energy is an important material basis for the survival and development of human society. Throughout the history of the development of human society, every major progress of human civilization is accompanied by the improvement and replacement of energy. The development and utilization of energy has greatly promoted the development of the world economy and human society. [0003] However, with the continuous development and consumption of energy, non-renewable energy sources such as petroleum, coal mines, and natural gas are gradually reduced, and energy conservation and recycling are gradually being valued. The basic content of my country's current energy strategy is: adhere to the priority of conservation, based on domestic, diversi...

AI Technical Summary

Problems solved by technology

[0007] However, the common problems of existing thermal power generation equipment are: a. The temperature requirements for high-temperature heat sources are high, generally above 200°C, and the thermal energy conversion efficiency is low, and the thermal energy conversion efficiency is generally 15% to 35%; b. The heat displacement of the condensing device is large, and the waste of heat energy is large. The condensation speed through the natural condensation method is slow, and the active condensation method (fan air cooling or liquid pump water cooling) requires additional power consumption; c. The turbine is prone to leakage of working fluid Problems; d. Turbine speed is unstable, and it is prone to stuck problems; e. The heat collection effect of the heat collector is not good, and the external waste heat absorption rate is small; f. The gasification temperature of the working medium is unstable, and the condensation effect of the working medium is not good , the working medium is easy to deteriorate or appear impurities; g. The existing equipment is relatively large

[0009] However, the development of nuclear power has also brought great concerns to people, because the construction and use of nuclear power plants will not only cause certain radioactive pollution to the environment, but also cause high-temperature pollution to nearby waters.

Nuclear power plants need a large amount of water to cool the reactor. A nuclear power plant consumes hundreds of tons of water per second. Cold sea water or river water is discharged back into the sea after heat exchange in the plant. The temperature of the water will rise by 20 to 30 degrees. After the drain is discharged, the temperature of the water within a radius of 1 km can rise as high as 5°C to 8°C. When the temperature of cold sea water or river water reaches 30°C in summer, after absorbing the heat exhausted by the nuclear power plant, the temperature can rise by about 40°C. , the general fish and seaweed organisms cannot survive, and it also brings a greater impact of high temperature on nearby residents

[0010] As for the thermal energy in the thermal drainage of the above-mentioned nuclear power plant, since the temperature difference between the thermal drainage and normal temperature water is only about 20°C, this temperature difference is difficult to be utilized by existing thermal power generation equipment

Images