CN105060377A - Nuclear power plant seawater desalination system - Google Patents
Nuclear power plant seawater desalination system Download PDFInfo
- Publication number
- CN105060377A CN105060377A CN201510548604.4A CN201510548604A CN105060377A CN 105060377 A CN105060377 A CN 105060377A CN 201510548604 A CN201510548604 A CN 201510548604A CN 105060377 A CN105060377 A CN 105060377A
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- China
- Prior art keywords
- water
- heat exchanger
- flash distillation
- valve
- nuclear power
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- Pending
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- 239000013535 sea water Substances 0.000 title claims abstract description 52
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 238000007701 flash-distillation Methods 0.000 claims description 29
- 239000013505 freshwater Substances 0.000 claims description 17
- 230000002209 hydrophobic effect Effects 0.000 claims description 10
- 238000002955 isolation Methods 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention aims to provide a nuclear power plant seawater desalination system which comprises a steam generator, a heat exchanger, a seawater storage tank, a flash evaporation device and a condenser. An outlet of the steam generator is connected with a first inlet of the heat exchanger through a main steam pipeline. A steam release valve, a steam isolating valve and a heat exchanger inlet regulating valve are sequentially arranged on the main steam pipeline. An outlet of the heat exchanger is connected with an inlet of the steam generator through a first water supply pipeline. A heat exchanger outlet check valve, a first water supply pump, a water supply isolating valve and a water supply check valve are sequentially arranged on the water supply pipeline. A second inlet of the heat exchanger is connected with the seawater storage tank through a second water inlet pipeline. A second water supply pump and a water supply regulating valve are sequentially arranged on the second water inlet pipeline.
Description
Technical field
The present invention relates to Nuclear power plants heat supply and water supply field, relate to a kind of Nuclear power plants seawater desalination system particularly.
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 stress 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 flash evaporation seawater desalting technology utilizes thermoelectricity to provide heat energy.Nuclear power is a kind of clean energy, and a large amount of thermal source can be provided for desalination technology.If a kind of seawater desalination system utilizing nuclear power plant's thermal source can be designed, then nuclear power plant can be utilized to build the advantage on seashore in, provide fresh water in a large number, meet productive life demand.
Summary of the invention
The object of the present invention is to provide a kind of Nuclear power plants seawater desalination system, comprise vapour generator, heat exchanger, seawater water tank, flash distillation plant, condenser, the outlet of described vapour generator is connected with the first import of described heat exchanger by main steam pipe, described main steam pipe is disposed with steam release valve, steam isolating, heat exchanger inlets variable valve, the outlet of described heat exchanger is connected by the import of the first water-supply line with described vapour generator, described water-supply line is disposed with heat exchanger outlet vacuum breaker, first working shaft, for water isolation valve, feed water check valve, second import of described heat exchanger is connected with seawater water-storing tank by the second back with water inlet line, described second back with water inlet line is disposed with the second working shaft, for water regulating valve, second outlet of described heat exchanger is connected with described flash distillation plant by hot water line, described heat pipe pipeline is provided with into water reducing valve, described flash distillation plant one end is connected to flash distillation plant drain pipe and the hydrophobic reducing valve of flash distillation plant, the other end is connected to condenser by flash distillation plant vapour line through fresh water pipe line control valve.
Further, steam user is connected at the outlet vapor connecting described flash distillation plant through variable valve.
Further, the steam after flash distillation is connected to fresh water user after can entering condenser condensation.
Further, the hydrophobic reducing valve of described flash distillation plant is also connected to Industrial Salt user.
In yet another embodiment, the hydrophobic reducing valve of described flash distillation plant is also connected to next stage flash distillation plant.
In yet another embodiment, described vapour generator is provided with radiation monitor.
In another embodiment, described heat exchanger inlets variable valve is provided with and leaks isolation signals device.
For realizing described object Nuclear power plants seawater desalination system, there is following principal feature:
Between the steam and water-supply line of vapour generator, be provided with heat-exchanging loop, the steam utilizing vapour generator to produce by heat exchanger by delivered heat to seawater.Be provided with leakage detection circuit, according to the Radiation monitoring signal of steam generator secondary side timely insulating sea water desalination heat-exchanging loop.The water of condensation of steam after over-heat-exchanger enters water-supply line, and sends into vapour generator recycle.Sea water desaltination loop is open cycle, and the seawater of seawater bin is squeezed into after heat exchanger heats through pump and sent into flash system.Hot water enters flash tank after pressurization, and the steam after flash distillation can be supplied to steam user.After steam after flash distillation can enter condenser condensation, for fresh water, user provides fresh water.The hydrophobic of flash tank as the water inlet of next stage flash tank, also can be supplied to water and wastewater industry salt and produce user.
Accompanying drawing explanation
Fig. 1 Nuclear power plants seawater desalination system general flow chart.
Reference numeral
1-vapour generator 2-main steam pipe 3-main steam isolation valve 4-steam release valve 5-steam discharge line 6-heat exchanger inlets variable valve 7-leaks isolation signals 8-heat exchanger 9-heat exchanger outlet vacuum breaker 10-service pump 11-feedwater isolation valve 12-feed water check valve 13-water-supply line 14-Radiation monitoring instrument 15-seawater desalination system hot water line 16-flash tank water inlet reducing valve 17-flash tank 18-flash tank drain pipe 19-flash tank hydrophobic reducing valve 20-Industrial Salt user or next stage flash tank 21-seawater water tank 22-source of seawater 23-seawater desalination system back with water inlet line 24-seawater working shaft 25-water supplies water regulating valve 26-flash tank vapour line 27-flash-off steam variable valve 28-steam user 29-flash distillation fresh water pipeline 30-fresh water pipe line control valve 31-water coolant 32-condenser 33-fresh water user
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
The present embodiment is implemented premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
In order to understand the present invention more clearly, operate to example below with seawater desalination system, composition graphs 1 is described further Nuclear power plants seawater desalination system of the present invention.
Nuclear power plants seawater desalination system is arranged on outside the reactor housing of reactor, by the heat-exchanging loop between vapour line and water-supply line, carries a large amount of heats to seawater.When running without the need to seawater desalination system, by heat exchanger inlets variable valve 6 and heat exchanger outlet vacuum breaker 9, heat exchanger 8 is isolated with main steam pipe 2 and water-supply line 13.
When needs seawater desalination system puts into operation, open heat exchanger inlets variable valve 6, part main steam enters heat exchanger 8, after transferring heat to seawater, vapour generator 1 is entered through service pump 10, feedwater isolation valve 11 and feed-regulating valve 12 and water-supply line 13, form closed cycle, and balance of ensuring the quality of products.Water in seawater bin 21 enters heat exchanger 8 through seawater desalination system back with water inlet line 23, seawater working shaft 24 and seawater for water regulating valve 25, enters flash tank 17 after being heated through seawater desalination system hot water line 15 and flash tank water inlet reducing valve 16.By seawater flash distillation in flash tank 17 of heating, the steam flashed off enters flash-off steam pipeline 26.Flash-off steam can be supplied to steam user 28 after flash-off steam variable valve 27, also can enter flash distillation fresh water pipeline 29, enter condenser 32 after fresh water pipe line control valve 30, after supercooled water 31 cools, is supplied to fresh water user 33.The hydrophobic of flash tank 17 through flash tank drain pipe 18 and the hydrophobic reducing valve 19 of flash tank, can be supplied to Industrial Salt user or next stage flash tank 20.Liquid level in seawater water tank 21 is maintained by source of seawater 22.
When primary Ioops occurs to leak, sent by the Radiation monitoring instrument 14 on vapour generator 1 and leak isolation signals 7, close heat exchanger inlets variable valve 6, thus effectively prevent reflectivity from entering sea water desaltination loop.
Said process is provided with independent heat-exchanging loop at vapour line and seawater desalination system, thus provides required heat for sea water desaltination, greatly reduces primary side of steam generator and leaks impact on dilute side, have safe and reliable advantage.
The connection of former components is only exemplary illustration of the present invention and non-limitative illustration, also can be other mode of connection.
Although accompanying drawing describes example comprehensively, various diagram can illustrate exemplary architecture of the present disclosure or other configurations, and it is with helping understand the Characteristic and function that can comprise in the disclosure.The disclosure is not limited to the exemplary architecture that illustrates or configuration, but available various substituting framework and configuration are implemented.In addition, although describe the disclosure about various example and realization above, should be understood that various Characteristic and function of one or more description in the example shown are not limited to describe their specific examples in their suitability.But, one or more in other examples of the present disclosure, they can be employed individually or with certain combination, and no matter whether such example is described, and no matter such feature as the part of the example described by this place.Again, the scope of the present disclosure should not by any one restriction of above-mentioned example.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For system disclosed in embodiment, owing to corresponding to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Those skilled in the art can use different methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (7)
1. a Nuclear power plants seawater desalination system, it is characterized in that, comprise vapour generator, heat exchanger, seawater water tank, flash distillation plant, condenser, the outlet of described vapour generator is connected with the first import of described heat exchanger by main steam pipe, described main steam pipe is disposed with steam release valve, steam isolating, heat exchanger inlets variable valve, the outlet of described heat exchanger is connected by the import of the first water-supply line with described vapour generator, described water-supply line is disposed with heat exchanger outlet vacuum breaker, first working shaft, for water isolation valve, feed water check valve, second import of described heat exchanger is connected with seawater water-storing tank by the second back with water inlet line, described second back with water inlet line is disposed with the second working shaft, for water regulating valve, second outlet of described heat exchanger is connected with described flash distillation plant by hot water line, described heat pipe pipeline is provided with into water reducing valve, described flash distillation plant one end is connected to flash distillation plant drain pipe and the hydrophobic reducing valve of flash distillation plant, the other end is connected to condenser by flash distillation plant vapour line through fresh water pipe line control valve.
2. Nuclear power plants seawater desalination system as claimed in claim 1, is characterized in that, is connected to steam user at the outlet vapor connecting described flash distillation plant through variable valve.
3. Nuclear power plants seawater desalination system as claimed in claim 1, is characterized in that, the steam after flash distillation is connected to fresh water user after can entering condenser condensation.
4. Nuclear power plants seawater desalination system as claimed in claim 1, it is characterized in that, the hydrophobic reducing valve of described flash distillation plant is also connected to Industrial Salt user.
5. Nuclear power plants seawater desalination system as claimed in claim 1, it is characterized in that, the hydrophobic reducing valve of described flash distillation plant is also connected to next stage flash distillation plant.
6. Nuclear power plants seawater desalination system as claimed in claim 1, it is characterized in that, described vapour generator is provided with radiation monitor.
7. Nuclear power plants seawater desalination system as claimed in claim 1, is characterized in that, described heat exchanger inlets variable valve is provided with and leaks isolation signals device.
Priority Applications (1)
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CN201510548604.4A CN105060377A (en) | 2015-08-31 | 2015-08-31 | Nuclear power plant seawater desalination system |
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CN201510548604.4A CN105060377A (en) | 2015-08-31 | 2015-08-31 | Nuclear power plant seawater desalination system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115218122A (en) * | 2022-07-19 | 2022-10-21 | 欧科能源技术(天津)有限公司 | Ethylene and ethane gasification device and control method thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2268153A1 (en) * | 1974-04-17 | 1975-11-14 | Fives Cail Babcock | Simultaneous supply of electrical and thermal energy - using a steam generator and heat accumulator |
CN201914937U (en) * | 2010-12-30 | 2011-08-03 | 一重集团大连设计研究院有限公司 | Seawater desalination system with multilevel heat exchanges |
CN103351034A (en) * | 2013-07-25 | 2013-10-16 | 江苏中核华纬工程设计研究有限公司 | High-temperature gas cooled reactor and low-temperature multiple-effect distillation seawater desalinization coupling device |
CN104021829A (en) * | 2014-05-23 | 2014-09-03 | 中国核动力研究设计院 | Multifunctional floating nuclear energy device |
CN205035104U (en) * | 2015-08-31 | 2016-02-17 | 上海核工程研究设计院 | Nuclear power station sea water desalination |
-
2015
- 2015-08-31 CN CN201510548604.4A patent/CN105060377A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2268153A1 (en) * | 1974-04-17 | 1975-11-14 | Fives Cail Babcock | Simultaneous supply of electrical and thermal energy - using a steam generator and heat accumulator |
CN201914937U (en) * | 2010-12-30 | 2011-08-03 | 一重集团大连设计研究院有限公司 | Seawater desalination system with multilevel heat exchanges |
CN103351034A (en) * | 2013-07-25 | 2013-10-16 | 江苏中核华纬工程设计研究有限公司 | High-temperature gas cooled reactor and low-temperature multiple-effect distillation seawater desalinization coupling device |
CN104021829A (en) * | 2014-05-23 | 2014-09-03 | 中国核动力研究设计院 | Multifunctional floating nuclear energy device |
CN205035104U (en) * | 2015-08-31 | 2016-02-17 | 上海核工程研究设计院 | Nuclear power station sea water desalination |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115218122A (en) * | 2022-07-19 | 2022-10-21 | 欧科能源技术(天津)有限公司 | Ethylene and ethane gasification device and control method thereof |
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |