Seawater desalination system and small nuclear power output device and power output method thereof

Abstract

The invention relates to a seawater desalination system and a small nuclear power output device and a power output method thereof. The small nuclear power output device comprises a cooler, a first compressor, a first regenerator, a turbine and a nuclear reactor. The cooler includes a first cold-side passage for access of an external cold source and a first hot-side passage for heat exchange with the first cold-side passage. The first regenerator includes a second hot-side passage and a second cold-side passage for heat exchange with the second hot-side passage. An output end of the first hot-side passage, the first compressor, the second cold-side passage and an inlet end of the nuclear reactor are sequentially connected to form a closed heat absorption passage. An outlet end of the nuclear reactor, the turbine, the second hot-side passage and an input end of the first hot-side passage are sequentially connected to form a closed working passage. The small nuclear power output device can generate electricity for seaborne users to provide power so as to meet the supply of seaborne power.

Description

technical field [0001] The invention relates to the technical field of marine nuclear energy application, and more specifically relates to a seawater desalination system, a small nuclear energy power output device and a power output method thereof. Background technique [0002] With the gradual deepening of my country's marine economic development and the increasing demand for the maintenance of national sea rights, the supply of offshore power and fresh water has become an increasingly important issue. At present, conventional ships are generally used to transport fossil fuels back and forth to generate electricity; seawater desalination and rainwater collection are generally used to achieve fresh water supply. This method of supplying electricity and fresh water is costly, long-term, and poor in stability. The power and fresh water supply requirements of ship supplies, military bases and drilling platforms; in addition, seawater desalination technology is mainly divided in...

AI Technical Summary

Problems solved by technology

At present, conventional ships are generally used to transport fossil fuels back and forth to generate electricity; seawater desalination and rainwater collection are generally used to achieve fresh water supply. This method of supplying electricity and fresh water is costly, long-term, and poor in stability. The power and fresh water supply requirements of ship supplies, military bases and drilling platforms; in addition, seawater desalination technology is mainly divided into distillation method and reverse osmosis method. Low profile, small size, simple equipment and easy maintenance, etc. It has good applicability in places with limited space such as ships

However, the disadvantage of the reverse osmosis method is that the device consumes a lot of power, and the power consumption cost is about 1 / 2 to 2 / 3 of the total water production cost. It generally requires a high-pressure pump, and the high-pressure pump is the most important power-consuming equipment. Its power consumption accounts for about 35% of the total operating cost of the system, which in turn increases the cost of power supply

[0003] Although the patent CN200710099364.X discloses a nuclear energy seawater desalination coupling device and its method, the saturated steam enters the steam turbine to directly drive the high-pressure pump for reverse osmosis seawater desalination, and at the same time, the exhaust steam of the steam turbine is introduced into the distillation seawater desalination system for seawater desalination to solve the problem of Sea fresh water supply problem, but it cannot be used to export electricity, solve the problem of insufficient electricity supply

This patent uses the pressurized water reactor steam circuit as a thermal cycle, which does not have the characteristics of miniaturization

Images