CN204991159U - Seawater desalination and dual -purpose system of waste heat discharge of floating nuclear power plant - Google Patents
Seawater desalination and dual -purpose system of waste heat discharge of floating nuclear power plant Download PDFInfo
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- CN204991159U CN204991159U CN201520450147.0U CN201520450147U CN204991159U CN 204991159 U CN204991159 U CN 204991159U CN 201520450147 U CN201520450147 U CN 201520450147U CN 204991159 U CN204991159 U CN 204991159U
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- pipeline
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- isolation valve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model relates to a seawater desalination and dual -purpose system of waste heat discharge of floating nuclear power plant, include steam generator and be connected the main steam pipe line with steam generator, still including the heat supply loop pipe line that connects gradually, natural circulation pipeline and water -supply line, heat supply loop pipe line connection main steam pipe line, feedwater pipeline connection steam generator, still including the sea water import pipeline that connects gradually, the sea water desalination outlet line, flash tank import pipeline, flash tank and flash tank vapor line, still include heat exchanger, heat supply loop pipe line links to each other with natural circulation pipeline and heat exchanger pipe side, sea water import pipeline links to each other with sea water desalination outlet line and heat exchanger shell -side. The utility model discloses a seawater desalination provides required heat, greatly reduced steam generator once incline and leak the influence to the fresh water side, have safe and reliable advantage.
Description
Technical field
The utility model relates to nuclear power plant system, particularly relates to a kind of desalinization and Residual heat removal dual-purpose system of floating nuclear power plant.
Background technology
Fresh water is the source that the mankind depend on for existence, along with progress and the development of human society, increasing to the demand of freshwater resources.Tellurian freshwater resources are limited, but seawater is almost inexhaustible.Therefore desalination technology also constantly develops, cost also reduction gradually, at the process water of a lot of country all from desalination technology.Flash distillation is desalination technology main at present, so-called flash distillation makes hot charge water be incorporated in the lower space of pressure, due to environmental pressure lower than the raw water that is heated temperature corresponding to saturated vapor pressure, now raw water as superheated water components vaporize hastily, produce steam, become fresh water through condensation.
First flash system needs heating of seawater, and cogeneration of heat and power flash evaporation seawater desalting technology utilizes thermoelectricity to provide heat energy.Nuclear power is a kind of clean energy resource, and a large amount of thermal source can be provided for desalination technology.For floating nuclear power plant, seawater is inexhaustible, use not to the utmost, if a kind of seawater desalination system utilizing nuclear power plant's thermal source can be designed, then can utilize the advantage of floating nuclear power plant, fresh water is provided, meet self productive life demand.
In addition, in existing presurized water reactor emergency feedwater supply system, mainly through power supply or diesel engine as drive source, and with rotating machinery to steam generator conveying feedwater, to take away reactor core decay heat.And floating nuclear power plant can using seawater as natural ultimate heat sink, if can design a kind of have non-can dynamic characteristic and do not have the residual heat removal system of moving component, make heat enter seawater, by making, the safety system of nuclear power station is more safe and reliable.
Utility model content
The utility model is exactly that overcome problems of the prior art, the utility model provides a kind of desalinization of floating nuclear power plant and Residual heat removal dual-purpose system to satisfy the demands in order to solve the problem.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of desalinization of floating nuclear power plant and Residual heat removal dual-purpose system, comprise steam generator and be connected main steam pipe with steam generator, it is characterized in that, also comprise the heat supplying loop pipeline connected successively, Natural Circulation pipeline and water-supply line, described heat supplying loop pipeline connects main steam pipe, water-supply line connects steam generator, also comprise the sea intake pipeline connected successively, seawater desalination system discharge pipe, flash tank inlet line, flash tank and flash tank vapour line, also comprise heat exchanger, described heat supplying loop pipeline is connected with heat exchanger tube side with Natural Circulation pipeline, sea intake pipeline is connected with heat exchanger shell-side with seawater desalination system discharge pipe.
The desalinization of above-mentioned a kind of floating nuclear power plant and Residual heat removal dual-purpose system, it is characterized in that, described main steam pipe is also provided with main steam isolation valve, and the junction of described heat supplying loop pipeline and main steam pipe is arranged between main steam isolation valve and steam generator.
The desalinization of above-mentioned a kind of floating nuclear power plant and Residual heat removal dual-purpose system, it is characterized in that, described heat supplying loop pipeline is provided with heat exchanger inlets variable valve, described Natural Circulation pipeline arranges natural convection loop isolation valve, described water-supply line is disposed with heat exchanger outlet isolation valve, heat exchanger outlet non-return valve, feed pump, feedwater isolation valve and feed water check valve, described heat exchanger outlet isolation valve, heat exchanger outlet non-return valve, feed pump, feedwater isolation valve, feed water check valve and natural convection loop isolation valve are arranged in parallel.
The desalinization of above-mentioned a kind of floating nuclear power plant and Residual heat removal dual-purpose system, it is characterized in that, described sea intake pipeline is disposed with sea intake pipeline isolation valve, seawater make-up pump and seawater for water regulating valve, sea intake pipeline is also connected in parallel to open type Natural Circulation pipeline, Natural Circulation pipeline is provided with open type Natural Circulation pipeline isolation valve, described open type Natural Circulation pipeline isolation valve and seawater make-up pump and seawater are arranged in parallel for water regulating valve.
The desalinization of above-mentioned a kind of floating nuclear power plant and Residual heat removal dual-purpose system, it is characterized in that, one end of described seawater desalination system discharge pipe connects sea intake pipeline, the other end connects seawer outlet, and the other end is provided with seawater desalination system discharge pipe filter screen, described flash tank inlet line is connected on seawater desalination system discharge pipe, and the seawater desalination system discharge pipe between the tie point and seawer outlet of flash tank inlet line and seawater desalination system discharge pipe is provided with seawater desalination system discharge pipe isolation valve.
The desalinization of above-mentioned a kind of floating nuclear power plant and Residual heat removal dual-purpose system, is characterized in that, described flash tank inlet line is provided with flash tank import isolation valve, flash tank import reduction valve.
The desalinization of above-mentioned a kind of floating nuclear power plant and Residual heat removal dual-purpose system, is characterized in that, described flash tank also connects flash tank hydrophobic pipeline, described flash tank hydrophobic pipeline is also provided with flash tank hydrophobic pipeline isolation valve and flash tank hydrophobic pipeline filter screen.
The desalinization of above-mentioned a kind of floating nuclear power plant and Residual heat removal dual-purpose system, is characterized in that, the inlet end of described sea intake pipeline is provided with sea intake pipeline filter screen.
The beneficial effects of the utility model are: the desalinization of the floating nuclear power plant that the utility model provides and Residual heat removal dual-purpose system, independent heat-exchanging loop is provided with at vapour line and seawater desalination system, thus provide required heat for desalinization, greatly reduce the impact of primary side of steam generator leakage on dilute side, there is safe and reliable advantage.Meanwhile, utilizing desalinization loop to define open type forced circulation and open type Natural Circulation passage, is ultimate heat sink with seawater, can be reactor core decay heat and provides reliable Residual heat removal path.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
Referring to Fig. 1, a kind of desalinization of floating nuclear power plant and Residual heat removal dual-purpose system, comprise steam generator 1 and be connected main steam pipe 2 with steam generator 1, also comprise the heat supplying loop pipeline 4 connected successively, Natural Circulation pipeline 7 and water-supply line 14, heat supplying loop pipeline 4 connects main steam pipe 2, water-supply line 14 connects steam generator 1, also comprise the sea intake pipeline 16 connected successively, seawater desalination system discharge pipe 22, flash tank inlet line 26, flash tank 28 and flash tank vapour line 29, also comprise heat exchanger 6, heat supplying loop pipeline 4 is arranged in heat exchanger 6 with the junction of Natural Circulation pipeline 7 and the junction of sea intake pipeline 16 and seawater desalination system discharge pipe 22.
Main steam pipe 2 is also provided with main steam isolation valve 3, and the junction of heat supplying loop pipeline 4 and main steam pipe 2 is arranged between main steam isolation valve 3 and steam generator 1.
Heat supplying loop pipeline 4 is provided with heat exchanger inlets variable valve 5, Natural Circulation pipeline 7 is arranged natural convection loop isolation valve 8, water-supply line 14 is disposed with heat exchanger outlet isolation valve 9, heat exchanger outlet non-return valve 10, feed pump 11, feedwater isolation valve 12 and feed water check valve 13, heat exchanger outlet isolation valve 9, heat exchanger outlet non-return valve 10, feed pump 11, feedwater isolation valve 12, feed water check valve 13 are arranged in parallel with natural convection loop isolation valve 8.
Sea intake pipeline 16 is disposed with sea intake pipeline isolation valve 17, seawater make-up pump 18 and seawater for water regulating valve 19, sea intake pipeline 16 is also connected in parallel to open type Natural Circulation pipeline 20, Natural Circulation pipeline 20 is provided with open type Natural Circulation pipeline isolation valve 21, open type Natural Circulation pipeline isolation valve 21 is arranged in parallel for water regulating valve 19 with seawater make-up pump 18 and seawater.
One end of seawater desalination system discharge pipe 22 connects sea intake pipeline 16, the other end connects seawer outlet, and the other end is provided with seawater desalination system discharge pipe filter screen 24, flash tank inlet line 26 is connected on seawater desalination system discharge pipe 22, and the seawater desalination system discharge pipe 22 between the tie point and seawer outlet of flash tank inlet line 26 and seawater desalination system discharge pipe 22 is provided with seawater desalination system discharge pipe isolation valve 23.
Flash tank inlet line 26 is provided with flash tank import isolation valve 25, flash tank import reduction valve 27.
Flash tank 28 also connects flash tank hydrophobic pipeline 31, flash tank hydrophobic pipeline 31 is also provided with flash tank hydrophobic pipeline isolation valve 32 and flash tank hydrophobic pipeline filter screen 33.
The inlet end of sea intake pipeline 16 is provided with sea intake pipeline filter screen 15
When running without the need to seawater desalination system, by heat exchanger inlets variable valve 5, natural convection loop isolation valve 8, heat exchanger outlet isolation valve 9 and heat exchanger outlet non-return valve 10, heat exchanger 6 is isolated with main steam pipe 2 and water-supply line 14.
When needs seawater desalination system puts into operation, open heat exchanger inlets variable valve 5, part main steam enters heat exchanger 6, after transferring heat to seawater, steam generator 1 is entered through feed pump 11, feedwater isolation valve 12 and feed-regulating valve 13 and water-supply line 14, form closed circulation, and balance of ensuring the quality of products.Seawater outside dividing plate enters heat exchanger 6 through sea intake pipeline filter screen 15, sea intake pipeline 16, seawater make-up pump 18 and seawater for water regulating valve 19, enters flash tank 28 after being heated through seawater desalination system discharge pipe 22, flash tank import isolation valve 25, flash tank inlet line 26 and flash tank import reduction valve 27.By seawater flash distillation in flash tank 28 of heating, the steam flashed off supplies user through flash tank vapour line 29 and flash tank vapour line variable valve 30.The hydrophobic of flash tank 28 can be supplied to next stage flash tank through flash tank hydrophobic pipeline 31 and flash tank hydrophobic pipeline isolation valve 32, or is discharged into seawater through flash tank hydrophobic pipeline filter screen 33.When desalinization loop is normally run, open type Natural Circulation pipeline isolation valve 21 and seawater desalination system discharge pipe isolation valve 23 are closed.When primary Ioops generator leaks, close heat exchanger inlets variable valve 5, thus effectively prevent radioactivity from entering desalinization loop.
When occurring to lose feedwater event, close flash tank import isolation valve 25, open seawater desalination system discharge pipe isolation valve 23, desalinization loop forms open type forced circulation, seawater enters from sea intake pipeline filter screen 15, in heat exchanger 6, enter seawater by seawater desalination system discharge pipe filter screen 24 after heat absorption, thus reactor core decay heat is taken out of.If seawater make-up pump loss of power, then close seawater for water regulating valve 19, opening open type Natural Circulation pipeline isolation valve 21, set up open type Natural Circulation, is that reactor core decay heat is taken out of by ultimate heat sink with seawater.
Said process is provided with independent heat-exchanging loop at vapour line and seawater desalination system, thus provides required heat for desalinization, greatly reduces primary side of steam generator and leaks impact on dilute side, have safe and reliable advantage.Meanwhile, utilizing desalinization loop to define open type forced circulation and open type Natural Circulation passage, is ultimate heat sink with seawater, can be reactor core decay heat and provides reliable Residual heat removal path.
The beneficial effects of the utility model are: the desalinization of the floating nuclear power plant that the utility model provides and Residual heat removal dual-purpose system, independent heat-exchanging loop is provided with at vapour line and seawater desalination system, thus provide required heat for desalinization, greatly reduce the impact of primary side of steam generator leakage on dilute side, there is safe and reliable advantage.Meanwhile, utilizing desalinization loop to define open type forced circulation and open type Natural Circulation passage, is ultimate heat sink with seawater, can be reactor core decay heat and provides reliable Residual heat removal path.
More than show and describe ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. the desalinization of a floating nuclear power plant and Residual heat removal dual-purpose system, comprise steam generator and be connected main steam pipe with steam generator, it is characterized in that, also comprise the heat supplying loop pipeline connected successively, Natural Circulation pipeline and water-supply line, described heat supplying loop pipeline connects main steam pipe, water-supply line connects steam generator, also comprise the sea intake pipeline connected successively, seawater desalination system discharge pipe, flash tank inlet line, flash tank and flash tank vapour line, also comprise heat exchanger, described heat supplying loop pipeline is connected with heat exchanger tube side with Natural Circulation pipeline, sea intake pipeline is connected with heat exchanger shell-side with seawater desalination system discharge pipe.
2. a kind of desalinization of floating nuclear power plant and Residual heat removal dual-purpose system according to claim 1, it is characterized in that, described main steam pipe is also provided with main steam isolation valve, and the junction of described heat supplying loop pipeline and main steam pipe is arranged between main steam isolation valve and steam generator.
3. a kind of desalinization of floating nuclear power plant and Residual heat removal dual-purpose system according to claim 1 or 2, it is characterized in that, described heat supplying loop pipeline is provided with heat exchanger inlets variable valve, described Natural Circulation pipeline arranges natural convection loop isolation valve, described water-supply line is disposed with heat exchanger outlet isolation valve, heat exchanger outlet non-return valve, feed pump, feedwater isolation valve and feed water check valve, described heat exchanger outlet isolation valve, heat exchanger outlet non-return valve, feed pump, feedwater isolation valve, feed water check valve and natural convection loop isolation valve are arranged in parallel.
4. a kind of desalinization of floating nuclear power plant and Residual heat removal dual-purpose system according to claim 3, it is characterized in that, described sea intake pipeline is disposed with sea intake pipeline isolation valve, seawater make-up pump and seawater for water regulating valve, sea intake pipeline is also connected in parallel to open type Natural Circulation pipeline, Natural Circulation pipeline is provided with open type Natural Circulation pipeline isolation valve, described open type Natural Circulation pipeline isolation valve and seawater make-up pump and seawater are arranged in parallel for water regulating valve.
5. a kind of desalinization of floating nuclear power plant and Residual heat removal dual-purpose system according to claim 4, it is characterized in that, one end of described seawater desalination system discharge pipe connects sea intake pipeline, the other end connects seawer outlet, and the other end is provided with seawater desalination system discharge pipe filter screen, described flash tank inlet line is connected on seawater desalination system discharge pipe, seawater desalination system discharge pipe between the tie point and seawer outlet of flash tank inlet line and seawater desalination system discharge pipe is provided with seawater desalination system discharge pipe isolation valve.
6. a kind of desalinization of floating nuclear power plant and Residual heat removal dual-purpose system according to claim 5, is characterized in that, described flash tank inlet line is provided with flash tank import isolation valve, flash tank import reduction valve.
7. a kind of desalinization of floating nuclear power plant and Residual heat removal dual-purpose system according to claim 6, it is characterized in that, described flash tank also connects flash tank hydrophobic pipeline, described flash tank hydrophobic pipeline is also provided with flash tank hydrophobic pipeline isolation valve and flash tank hydrophobic pipeline filter screen.
8. a kind of desalinization of floating nuclear power plant and Residual heat removal dual-purpose system according to claim 1 or 7, it is characterized in that, the inlet end of described sea intake pipeline is provided with sea intake pipeline filter screen.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520450147.0U CN204991159U (en) | 2015-06-26 | 2015-06-26 | Seawater desalination and dual -purpose system of waste heat discharge of floating nuclear power plant |
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| CN201520450147.0U CN204991159U (en) | 2015-06-26 | 2015-06-26 | Seawater desalination and dual -purpose system of waste heat discharge of floating nuclear power plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966535A (en) * | 2015-06-26 | 2015-10-07 | 上海核工程研究设计院 | Sea water desalination and residual heat removal dual-purpose system of floating nuclear power plant |
| WO2019050415A1 (en) * | 2017-09-08 | 2019-03-14 | CFD Design and Engineering Limited | Energy recovery system and method |
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2015
- 2015-06-26 CN CN201520450147.0U patent/CN204991159U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966535A (en) * | 2015-06-26 | 2015-10-07 | 上海核工程研究设计院 | Sea water desalination and residual heat removal dual-purpose system of floating nuclear power plant |
| WO2019050415A1 (en) * | 2017-09-08 | 2019-03-14 | CFD Design and Engineering Limited | Energy recovery system and method |
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |