Nuclear power plant waste heat utilization system and nuclear power plant waste heat utilization method

Abstract

The invention discloses a nuclear power plant waste heat utilization system and a nuclear power plant waste heat utilization method. The nuclear power plant waste heat utilization system comprises a first heat pump connected with a circulating water system in a nuclear power plant, a second heat pump connected with the first heat pump to form an intermediate circulating loop, and a steam-water heat exchanger; intermediate circulating water is output from the second heat pump, enters the first heat pump, exchanges heat with seawater in the first heat pump, is heated and returns to the second heat pump; the steam-water heat exchanger is connected with the second heat pump and heating heat exchange equipment to form a heating water circulation loop; and low-temperature water output by the heating heat exchange equipment enters the second heat pump and exchanges heat with intermediate circulating water, the low-temperature water enters the steam-water heat exchanger after being heated, andhigh-temperature water is formed and returns to the heating heat exchange equipment. Waste heat contained in circulating water of the nuclear power plant is effectively utilized, the energy comprehensive rate of the nuclear power plant is increased, the purposes of waste heat utilization and external clean heating of the nuclear power plant are achieved, and the environmental pollution problem caused by heating of a thermal power plant is reduced.

Description

Technical field [0001] The present invention relates to the field of nuclear power technology, in particular to a nuclear power plant waste heat utilization system and a nuclear power plant for residual heat utilization method. Background technique [0002] The nuclear power plants built or planned to be planned and construction are both a seawater and a circular cooling water system. Nuclear power plant reactor heat generates main steam through the steam generator, and steam is acting generator in a steam turbine. After making a function, the fat is cooled to condense, and the gasification of this part is passed through the circulating water to the outer sea. [0003] Combine figure 1 The specific process of heat in the nuclear power plant is as follows: The reactor generates heat, and the heat is driven by the main pump driven to the steam generator (referred to as SG), the steam generator heats the second circuit to the water into saturated steam, steam through the main steam...

AI Technical Summary

Problems solved by technology

In addition, this part of heat discharge also has an adverse impact on the surrounding environment of the power plant

Therefore, in existing nuclear power plants, the latent heat of gasification is carried to the sea through circulating water, which not only wastes a lot of waste heat in the power plant, but also has an adverse effect on the surrounding seawater environment. Plant energy efficiency

Images