CN107680703A - A kind of degassing subsystem of nuclear power station active-effluent system - Google Patents
A kind of degassing subsystem of nuclear power station active-effluent system Download PDFInfo
- Publication number
- CN107680703A CN107680703A CN201711091792.8A CN201711091792A CN107680703A CN 107680703 A CN107680703 A CN 107680703A CN 201711091792 A CN201711091792 A CN 201711091792A CN 107680703 A CN107680703 A CN 107680703A
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- China
- Prior art keywords
- degassing
- gas
- nuclear power
- power station
- pump
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/02—Treating gases
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/06—Processing
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The present invention provides a kind of degassing subsystem of nuclear power station active-effluent system, and it includes：The vaccum-pumping equipment of degassing tower；The vaccum-pumping equipment of the degassing tower is gas jetpump.The degassing subsystem of nuclear power station active-effluent system provided by the invention, using vaccum-pumping equipment of the gas jetpump as degassing tower, gas jetpump has passive characteristic, improves system operation reliability and stability.
Description
Technical field
The present invention relates to nuclear power station active-effluent system, and in particular to a kind of degassing of nuclear power station active-effluent system
Subsystem.
Background technology
The degassing subsystem of nuclear power station active-effluent system receives and handles the cooling agent efflux of boracic.Efflux master
To be produced by reactor coolant loop boronation, dilution, sampling, loop are hydrophobic etc., wherein hydrogen may be contained or deliquescent put
Penetrating property gas.The subsystem that deaerates removes hydrogen and radgas in efflux, and these waste gas are delivered into radgas and given up
Thing processing system, the efflux after degassing drain into efflux holding tank again.
Subsystem deaerate mainly by equipment groups such as degassing tower, steam condenser, degassing tower vavuum pump, degassing tower emptying pumps
Into.In normal operation, the efflux into degassing tower constantly sprays on filled column the system, due to pressure at spray ozzle
Decline, some volatile gases are therefrom separated.Degassing tower vavuum pump puts into operation to maintain the vacuum in degassing tower,
Improve degassing efficiency.After the drop in air-flow is removed by demister, water vapour and incoagulable gas discharge degassing tower.Discharge
Gas passes through steam condenser, and most water vapour is removed by steam condenser.The gas of steam condenser discharge enters
Enter degassing tower vavuum pump, be discharged into degassing column separator after compression, separation compression liquid and gas in degassing column separator.Degassing
Efflux afterwards discharges degassing tower by emptying pump.
When degassing tower pressure ratio is higher, electric vacuum pump rate of air sucked in required is larger, and pump discharge pipe line pressure increases therewith, therefore
Cause pump power to increase, the risk for jumping pump be present.
The content of the invention
The present invention in view of the shortcomings of the prior art, proposes a kind of degassing subsystem of nuclear power station active-effluent system.
The present invention provides a kind of degassing subsystem of nuclear power station active-effluent system, and it includes：Degassing tower vacuumizes
Equipment；The vaccum-pumping equipment of the degassing tower is gas jetpump；The degassing subsystem also includes degassing tower, isolating valve, row
Put pump, steam condenser, check-valves and jet pump.
Preferably, the driving source of the gas jetpump is compressed gas.
Preferably, the gas jetpump be provided with driving gas isolation valve, it is described driving gas isolation valve be configured to by
The Stress control of degassing tower.
Preferably, in addition to steam condenser, the steam condenser are provided with condensate liquid reflux pipeline and check-valves；It is described
The shell-side of steam condenser is connected with the suction inlet of the jet pump by pipeline, and the shell-side of the steam condenser stops with described
Valve is returned to connect by pipeline.
Preferably, in addition to emptying pump, the emptying pump are configured to degassing tower Liquid level；The emptying pump and
The gas jetpump is not joined directly together.
Compared with prior art, the invention has the advantages that：
1st, the degassing subsystem of nuclear power station active-effluent system provided by the invention, using gas jetpump as degassing
The vaccum-pumping equipment of tower, gas jetpump have passive characteristic, improve system operation reliability and stability.
2nd, the degassing subsystem of nuclear power station active-effluent system provided by the invention, gas jetpump using compressed gas as
Driving source, when the pressure tower that deaerates is high, the gas in degassing tower is extracted out using jet pump, maintains vacuum, it is cold by steam
The condensate liquid of condenser returns to degassing tower.
Brief description of the drawings
Fig. 1 is the degassing subsystem schematic diagram for the nuclear power station active-effluent system for meeting the preferred embodiment of the present invention.
Wherein, 1-radioactive liquid pipeline；2-degassing tower；3-degassing tower is to emptying pump inlet duct；4-emptying pump
Inlet isolation valve；5-emptying pump；6-emptying pump outlet conduit；7-degassing tower is to steam condenser inlet pipeline；8-steam
Condenser；9-condensate liquid reflux line；10-condensate liquid backflow check-valves；11-steam condenser cooling water inlet duct；
12-steam condenser cooling water outlet conduit；13-steam condensator outlet pipeline；14-steam condensator outlet pipeline every
From valve；15-jet pump；16-jet pump outlet conduit；17-driving gas isolation valve；18-driving gas.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
As shown in figure 1, the degassing subsystem of nuclear power station active-effluent system includes：The vaccum-pumping equipment 15 of degassing tower；
The vaccum-pumping equipment of the degassing tower is gas jetpump 15.
The driving source of the gas jetpump 15 is compressed gas.The gas jetpump 15 is provided with driving gas isolation valve
17, the driving gas isolation valve 17 is configured to the Stress control by degassing tower.
The degassing subsystem of nuclear power station active-effluent system also includes steam condenser 8, and the steam condenser 8 is provided with
Condensate liquid reflux pipeline 9 and check-valves 10.
The degassing subsystem of nuclear power station active-effluent system also includes emptying pump 5, and the emptying pump 5 is configured to
Degassing tower Liquid level.
Specifically, the degassing subsystem of nuclear power station active-effluent system is arranged on outside the containment of reactor, including put
Penetrating property fluid pipeline, degassing equipment, vaccum-pumping equipment, steam condenser and exhaust apparatus.Under normal operation, degassing tower 2
Middle maintenance low pressure, steam condensator outlet pipeline isolation valve 14 and driving gas isolation valve 17 are closed, emptying pump inlet isolation valve 4
Open, emptying pump 5 is stopped transport.
When pressure rise in degassing tower 2, steam condensator outlet pipeline isolation valve 14 and driving gas isolation valve are opened
17, compressed gas enters jet pump 15, the incoagulable gas in degassing tower 2 and steam is extracted out, steam is in steam condenser 8
It is condensed, incoagulable gas is inhaled into jet pump 15, is discharged downstream deaerating column separator progress with compressed gas after mixing subsequently
Handling process.When the vacuum of degassing tower 2 reaches desired value, steam off condensator outlet pipeline isolation valve 14 and driving gas every
From valve 17, condensate liquid is back to degassing tower 2 under gravity in steam condenser 8.When the liquid level in degassing tower 2 reaches high liquid
During position, emptying pump 5 is opened, waste liquid is discharged, into follow-up processing flow, when the liquid level of degassing tower 2 drops to low liquid level, stopped transport
Emptying pump 5.
Said process uses vaccum-pumping equipment of the gas jetpump as degassing tower, and increases condensation on steam condenser
Liquid reflux pipeline.Gas jetpump is using compressed gas as driving source, when the pressure tower that deaerates is high, using jet pump by degassing tower
Gas extract out, maintain vacuum, by steam condenser condensate liquid return degassing tower.The gas jetpump that the design uses
With passive characteristic, system operation reliability and stability are improved.
Compared with prior art, the present embodiment has the advantages that：
1st, the degassing subsystem for the nuclear power station active-effluent system that the present embodiment provides, using gas jetpump as de-
The vaccum-pumping equipment of gas tower, gas jetpump have passive characteristic, improve system operation reliability and stability.
2nd, the degassing subsystem for the nuclear power station active-effluent system that the present embodiment provides, gas jetpump is with compressed gas
For driving source, when the pressure tower that deaerates is high, the gas in degassing tower is extracted out using jet pump, vacuum is maintained, by steam
The condensate liquid of condenser returns to degassing tower.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For system disclosed in embodiment
For, due to corresponding to the method disclosed in Example, so description is fairly simple, related part is referring to method part illustration
.
Those skilled in the art can realize described function using distinct methods to each specific application, but
It is this realization it is not considered that beyond the scope of this invention.
Obviously, those skilled in the art can carry out the spirit of various changes and modification without departing from the present invention to invention
And scope.So, if these modifications and variations of the present invention belong to the claims in the present invention and its equivalent technologies scope it
Interior, then the present invention is also intended to including these changes and modification.
Claims (5)
- A kind of 1. degassing subsystem of nuclear power station active-effluent system, it is characterised in that including：Vacuumizing for degassing tower is set It is standby；The vaccum-pumping equipment of the degassing tower is gas jetpump；The degassing subsystem also includes degassing tower, isolating valve, discharge Pump, steam condenser, check-valves and jet pump.
- 2. the degassing subsystem of nuclear power station active-effluent system as claimed in claim 1, it is characterised in that the gas spray The driving source for penetrating pump is compressed gas.
- 3. the degassing subsystem of nuclear power station active-effluent system as claimed in claim 2, it is characterised in that the gas spray Penetrate pump and be provided with driving gas isolation valve, the driving gas isolation valve is configured to the Stress control by degassing tower.
- 4. the degassing subsystem of nuclear power station active-effluent system as claimed in claim 1, it is characterised in that also including steam Condenser, the steam condenser are provided with condensate liquid reflux pipeline and check-valves；The shell-side of the steam condenser and the spray The suction inlet for penetrating pump is connected by pipeline, and the shell-side of the steam condenser is connected with the check-valves by pipeline.
- 5. the degassing subsystem of nuclear power station active-effluent system as claimed in claim 1, it is characterised in that also include discharge Pump, the emptying pump are configured to degassing tower Liquid level；The emptying pump and the gas jetpump are not joined directly together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091792.8A CN107680703A (en) | 2017-11-08 | 2017-11-08 | A kind of degassing subsystem of nuclear power station active-effluent system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091792.8A CN107680703A (en) | 2017-11-08 | 2017-11-08 | A kind of degassing subsystem of nuclear power station active-effluent system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107680703A true CN107680703A (en) | 2018-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711091792.8A Pending CN107680703A (en) | 2017-11-08 | 2017-11-08 | A kind of degassing subsystem of nuclear power station active-effluent system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110232980A (en) * | 2019-07-09 | 2019-09-13 | 阳江核电有限公司 | Sampler and online boron table calibration system for the online boron table calibration of nuclear power plant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000002787A (en) * | 1998-06-16 | 2000-01-07 | Toshiba Eng Co Ltd | Hydrogen peroxide concentration reducing device for nuclear power plant |
| CN101533681A (en) * | 2008-03-12 | 2009-09-16 | 阿雷瓦核能有限责任公司 | Method and system for separating a neutron absorber from a coolant used in a coolant system |
| CN203702679U (en) * | 2014-01-29 | 2014-07-09 | 吴艳坤 | Variable type vacuumizing device |
| CN106782732A (en) * | 2016-12-15 | 2017-05-31 | 深圳中广核工程设计有限公司 | The degasser and method of gaseous impurity in nuclear power plant reactor radioactive liquid waste |
| CN107206292A (en) * | 2015-02-03 | 2017-09-26 | 西屋电气有限责任公司 | Equipment for being deaerated for nuclear reactor cooling system |
-
2017
- 2017-11-08 CN CN201711091792.8A patent/CN107680703A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000002787A (en) * | 1998-06-16 | 2000-01-07 | Toshiba Eng Co Ltd | Hydrogen peroxide concentration reducing device for nuclear power plant |
| CN101533681A (en) * | 2008-03-12 | 2009-09-16 | 阿雷瓦核能有限责任公司 | Method and system for separating a neutron absorber from a coolant used in a coolant system |
| CN203702679U (en) * | 2014-01-29 | 2014-07-09 | 吴艳坤 | Variable type vacuumizing device |
| CN107206292A (en) * | 2015-02-03 | 2017-09-26 | 西屋电气有限责任公司 | Equipment for being deaerated for nuclear reactor cooling system |
| CN106782732A (en) * | 2016-12-15 | 2017-05-31 | 深圳中广核工程设计有限公司 | The degasser and method of gaseous impurity in nuclear power plant reactor radioactive liquid waste |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110232980A (en) * | 2019-07-09 | 2019-09-13 | 阳江核电有限公司 | Sampler and online boron table calibration system for the online boron table calibration of nuclear power plant |
| CN110232980B (en) * | 2019-07-09 | 2024-05-10 | 阳江核电有限公司 | Sampling device for calibrating online boron meter of nuclear power plant and online boron meter calibration system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
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 Co.,Ltd. |
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Application publication date: 20180209 |
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| WD01 | Invention patent application deemed withdrawn after publication |