CN205751542U - A kind of feedwater medicine system of nuclear power station - Google Patents
A kind of feedwater medicine system of nuclear power station Download PDFInfo
- Publication number
- CN205751542U CN205751542U CN201620407439.0U CN201620407439U CN205751542U CN 205751542 U CN205751542 U CN 205751542U CN 201620407439 U CN201620407439 U CN 201620407439U CN 205751542 U CN205751542 U CN 205751542U
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- Prior art keywords
- low discharge
- pipeline
- feedwater
- power station
- nuclear power
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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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
This utility model provides the feedwater medicine system of a kind of nuclear power station, comprising: feed pump；Described feed pump is provided with low discharge reflux pipeline；It is provided with dosing pipeline on described low discharge reflux pipeline；Fluid in described low discharge reflux pipeline is configured the suction line injecting described feed pump with the chemical agent in described dosing pipeline after mixing, to reach low discharge backflow and regulating water quality；Ejector pump；Described ejector pump is arranged on described dosing pipeline, is configured to mix the chemical agent in described dosing pipeline with the fluid in described low discharge reflux pipeline.The feedwater medicine system of the nuclear power station that the present embodiment provides, the low discharge reflux pipeline of feed pump is provided with dosing pipeline, and use the ejector pump with passive feature, it is achieved and feedwater and the mixing of chemical agent, improve system reliability of operation and economy.
Description
Technical field
This utility model relates to the feedwater medicine system of a kind of nuclear power station.
Background technology
Feedwater medicine system is of great significance for the secondary circuit operation tool of nuclear power station, its major function
It is to meet the feedwater of water quality requirement to steam generator offer, to take away the heat of primary Ioops in different phase.
In nuclear power station starts and be properly functioning, add a certain amount of chemical drugs by medicine system to water supply system
Agent, makes feedwater meet water quality requirement.The medicine system design in traditional core power station, is by chemistry by force (forcing) pump
Medicament injects water supply system mixing, this design not only electricity consumption, and needs the plant equipment run, system phase
To complexity.If a kind of feedwater medicine system using passive equipment can be designed, it is possible not only to make system letter
Change, it is also possible to improve operational reliability and the economy of nuclear power generating sets.
Utility model content
This utility model, for the deficiencies in the prior art, proposes the feedwater medicine system of a kind of nuclear power station.
The feedwater medicine system of nuclear power station includes:
Feed pump；Described feed pump is provided with low discharge reflux pipeline；It is provided with on described low discharge reflux pipeline
Dosing pipeline；Fluid in described low discharge reflux pipeline is configured and the chemical agent in described dosing pipeline
The suction line of described feed pump is injected, to reach low discharge backflow and regulating water quality after mixing；
Ejector pump；Described ejector pump is arranged on described dosing pipeline, is configured to described dosing pipeline
Interior chemical agent mixes with the fluid in described low discharge reflux pipeline.
Preferably, described dosing pipeline is provided with dosing tank.
Preferably, described dosing pipeline is provided with regulation valve.
Preferably, described dosing pipeline is provided with check-valves.
Preferably, described low discharge reflux pipeline is provided with regulation valve.
Preferably, blood pressure lowering orifice plate is also included；Described blood pressure lowering orifice plate is arranged on described low discharge reflux pipeline,
And the upstream of the regulation valve being positioned on described low discharge reflux pipeline.
Preferably, described feedwater delivery side of pump is provided with effusion meter；Described effusion meter is configured and described low discharge
Regulation valve composition control loop on reflux pipeline and described dosing pipeline is to regulate chemical feeding quantity.
Compared with prior art, this utility model has the advantages that
1, the feedwater medicine system of the nuclear power station that this utility model provides, at the low discharge reflux pipeline of feed pump
On be provided with dosing pipeline, and use the ejector pump with passive feature, it is achieved feedwater and chemical agent
Mixing, improves system reliability of operation and economy.
2, the feedwater medicine system of the nuclear power station that this utility model provides, uses dosing pump real with traditional core power station
The design of existing medicine charging function is different, and this design is provided with ejector pump on the low discharge reflux pipeline of feed pump,
Fluid on low discharge reflux pipeline injects after the solution in dosing tank is sucked ejector pump mixing by ejector pump to be given
Pump entrance pipeline, reaches low discharge backflow and the purpose of regulating water quality.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the feedwater medicine system of the nuclear power station meeting this utility model preferred embodiment.
Wherein, 1 feed-tank；2 entrance of water-supplying pump pipelines；3 entrance of water-supplying pump pipeline isolating valves；4—
Feed pump；5 feed pump outlet lines；6 feed meters；7 low discharge reflux pipelines；8 blood pressure lowerings
Orifice plate；9 low discharge return duct line control valves；10 ejector pumpes；Pipeline is injected in 11 dosings；12 add
Pencil line check-valves；13 chemical feed pipe line control valves；14 dosing pipelines；15 dosing tanks；16 control
Loop
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with attached
This utility model is described in further detail by figure and detailed description of the invention.
As it is shown in figure 1, the feedwater medicine system of nuclear power station includes:
Feed pump 4；Described feed pump 4 is provided with low discharge reflux pipeline 7；On described low discharge reflux pipeline 7
It is provided with dosing pipeline 14；Fluid in described low discharge reflux pipeline 7 is configured and described dosing pipeline 14
The suction line 2 of described feed pump is injected, to reach low discharge backflow and regulation water after interior chemical agent mixing
Matter；
Ejector pump 10；Described ejector pump 10 is arranged on described dosing pipeline 14, is configured to described
Chemical agent in dosing pipeline 14 mixes with the fluid in described low discharge reflux pipeline 7.
Preferably, described dosing pipeline 14 is provided with dosing tank 15.
Preferably, described dosing pipeline 14 is provided with regulation valve 13.
Preferably, described dosing pipeline 14 is provided with check-valves 12.
Preferably, described low discharge reflux pipeline 7 is provided with regulation valve 9.
Preferably, blood pressure lowering orifice plate 8 is also included；Described blood pressure lowering orifice plate 8 is arranged on described low discharge reflux pipeline 7
On, and the upstream of the regulation valve 9 being positioned on described low discharge reflux pipeline.
Preferably, described feedwater delivery side of pump is provided with effusion meter 6；Described effusion meter 67 is configured little with described
On flow reflux pipeline regulation valve 9 and described dosing pipeline 14 on regulation valve 13 composition control loop with
Regulation chemical feeding quantity.
Compared with prior art, the present embodiment has the advantages that
1, the feedwater medicine system of the nuclear power station that the present embodiment provides, on the low discharge reflux pipeline of feed pump
It is provided with dosing pipeline, and uses the ejector pump with passive feature, it is achieved feedwater is mixed with chemical agent
Close, improve system reliability of operation and economy.
2, the feedwater medicine system of the nuclear power station that the present embodiment provides, uses dosing pump to realize with traditional core power station
The design of medicine charging function is different, and this design is provided with ejector pump on the low discharge reflux pipeline of feed pump, little
Fluid on flow reflux pipeline injects feedwater after the solution in dosing tank is sucked ejector pump mixing by ejector pump
Pump intake pipeline, reaches low discharge backflow and the purpose of regulating water quality.
The operation principle of the feedwater medicine system of the nuclear power station of the present embodiment is as follows: when water supply system is without dosing
Time, chemical feed pipe line control valve 13 is closed, and feeds water and flows directly out after feed pump 4 pressurizes, when flow is less than pump
During minimum operating flux, low discharge return duct line control valve 9 is opened, and performs low discharge backflow functionality.
When water supply system needs dosing, dosing drives pipe line control valve 9 and dosing pipeline isolating valve 13 to open,
The stream of fluid of feed pump 4 outlet enters low discharge reflux pipeline 7, and fluid returns through blood pressure lowering orifice plate 8 and low discharge
Flow tube line control valve 9 enters ejector pump 10, and fluid is acceleration and pressure decrease in ejector pump 10, by dosing pipeline 14
In chemical agent suck ejector pump 10, after mixing through dosing inject pipeline 11 enter entrance of water-supplying pump pipeline 2,
After mixing with feedwater further, flow out after feed pump 4 pressurizes.Control loop 16 according to flowing through feedwater flow
Meter 6 flow-control low discharge return duct line control valve 9 and the aperture of chemical feed pipe line control valve 13, regulate into
Enter flow and the chemical drugs dosage of ejector pump 10, it is achieved the purpose of regulating water quality.
When simultaneously need to low discharge backflow is with dosing, maintain the aperture of low discharge return duct line control valve 9,
Ensureing the minimum operating flux continuously of pump, by regulating the aperture of chemical feed pipe line control valve 13, regulation enters spray
Penetrate pump 10 and chemical drugs dosage, realize low discharge backflow and the purpose of regulating water quality simultaneously.
The present embodiment use feedwater pump head is as driving force, and uses the ejector pump with passive feature,
Realize the mixing of feedwater and chemical agent, improve system reliability of operation and economy.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is
With the difference of other embodiments, between each embodiment, identical similar portion sees mutually.For
For system disclosed in embodiment, owing to corresponding to the method disclosed in Example, so the comparison described is simple
Single, relevant part sees method part and illustrates.
Each specifically should being used for can be used different methods to realize described merit by those skilled in the art
Can, but this realization is it is not considered that exceed scope of the present utility model.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to utility model
The spirit and scope of utility model.So, if these amendments of the present utility model and modification belong to this practicality
Within the scope of novel claim and equivalent technologies thereof, then this utility model be also intended to include these change and
Including modification.
Claims (7)
1. the feedwater medicine system of a nuclear power station, it is characterised in that including:
Feed pump；Described feed pump is provided with low discharge reflux pipeline；It is provided with on described low discharge reflux pipeline
Dosing pipeline；Fluid in described low discharge reflux pipeline is configured and the chemical agent in described dosing pipeline
The suction line of described feed pump is injected, to reach low discharge backflow and regulating water quality after mixing；
Ejector pump；Described ejector pump is arranged on described dosing pipeline, is configured to described dosing pipeline
Interior chemical agent mixes with the fluid in described low discharge reflux pipeline.
2. the feedwater medicine system of nuclear power station as claimed in claim 1, it is characterised in that described chemical feed pipe
Line is provided with dosing tank.
3. the feedwater medicine system of nuclear power station as claimed in claim 1, it is characterised in that described chemical feed pipe
Line is provided with regulation valve.
4. the feedwater medicine system of nuclear power station as claimed in claim 1, it is characterised in that described chemical feed pipe
Line is provided with check-valves.
5. the feedwater medicine system of nuclear power station as claimed in claim 1, it is characterised in that described low discharge
Reflux pipeline is provided with regulation valve.
6. the feedwater medicine system of nuclear power station as claimed in claim 5, it is characterised in that also include blood pressure lowering
Orifice plate；Described blood pressure lowering orifice plate is arranged on described low discharge reflux pipeline, and is positioned at described low discharge return duct
The upstream of the regulation valve on line.
7. the feedwater medicine system of nuclear power station as claimed in claim 1, it is characterised in that described feed pump
Outlet be provided with effusion meter；Described effusion meter is configured and described low discharge reflux pipeline and described dosing pipeline
On regulation valve composition control loop to regulate chemical feeding quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620407439.0U CN205751542U (en) | 2016-05-06 | 2016-05-06 | A kind of feedwater medicine system of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620407439.0U CN205751542U (en) | 2016-05-06 | 2016-05-06 | A kind of feedwater medicine system of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205751542U true CN205751542U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620407439.0U Active CN205751542U (en) | 2016-05-06 | 2016-05-06 | A kind of feedwater medicine system of nuclear power station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788686A (en) * | 2016-05-06 | 2016-07-20 | 上海核工程研究设计院 | Water-supply medicine adding system for nuclear power plant |
-
2016
- 2016-05-06 CN CN201620407439.0U patent/CN205751542U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788686A (en) * | 2016-05-06 | 2016-07-20 | 上海核工程研究设计院 | Water-supply medicine adding system for nuclear power plant |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
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 |