CN107221369B - One kind being used for nuclear power station underwater foreign matter suction method - Google Patents
One kind being used for nuclear power station underwater foreign matter suction method Download PDFInfo
- Publication number
- CN107221369B CN107221369B CN201710428547.5A CN201710428547A CN107221369B CN 107221369 B CN107221369 B CN 107221369B CN 201710428547 A CN201710428547 A CN 201710428547A CN 107221369 B CN107221369 B CN 107221369B
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- CN
- China
- Prior art keywords
- foreign matter
- suction
- filter screen
- electrically operated
- operated valve
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/20—Arrangements for introducing objects into the pressure vessel; Arrangements for handling objects within the pressure vessel; Arrangements for removing objects from the pressure vessel
-
- 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
Abstract
The invention discloses one kind to be used for nuclear power station underwater foreign matter suction method, comprising steps of step 1) is by under the suction pump swabbing action that is arranged in suction channel, suction channel is equipped with that suction is open to suck foreign matter in reactor vessel and cooling water by bottom end；The unlatching electrically operated valve that step 2) foreign matter and cooling water are equipped with by aspirating open top and suction channel junction；Step 3) is by the foreign matter and cooling water of unlatching electrically operated valve by being arranged in the filter screen filtration below suction pump, and for cooling water by filter screen, foreign matter, which collides filter screen and touches, is equipped with touching switch closure above setting filter screen；Control electrically operated valve is closed after the step 4) touching switch touches closure, and foreign matter is blocked in the suction channel between filter screen and the valve of electrically operated valve (3).Entire removing method is not knowing that specific location of the foreign matter in reactor vessel blind can also operate convenient for operation.
Description
Technical field
The present invention relates to a kind of nuclear equipment fields, and in particular to one kind is used for nuclear power station underwater foreign matter suction method.
Background technique
Connecting bolt and nut in ageing equipment, vibration, impact and maintenance process and due to tool fault is fallen etc., instead
Answering core pressure vessel bottom inevitably has foreign matter generation.It was to take out reactor by wearing the diver of radiation protection diving suit in the past
Pressure vessel bottom foreign matter, at high cost and risk are big.
Summary of the invention
The purpose of the present invention is to overcome the shortage of prior art, and it is an object of the present invention to provide a kind of for nuclear power station underwater foreign matter
Suction method solves in nuclear reactor vessel when there is foreign matter, can not safe and convenient taking-up problem.
The present invention is achieved through the following technical solutions:
One kind being used for nuclear power station underwater foreign matter suction method, it is characterised in that: comprising steps of
For step 1) by under the suction pump swabbing action that is arranged in suction channel, it is spacious that suction channel by bottom end is equipped with suction
Mouth sucks foreign matter in reactor vessel and cooling water；
The unlatching electrically operated valve that step 2) foreign matter and cooling water are equipped with by aspirating open top and suction channel junction；
The foreign matter and cooling water that step 3) passes through unlatching electrically operated valve are cold by the filter screen filtration below suction pump is arranged in
But water is simultaneously touched above setting filter screen equipped with touching switch closure by filter screen, foreign matter collision filter screen；
Control electrically operated valve is closed after the step 4) touching switch touches closure, by foreign matter be blocked in filter screen with it is electronic
In suction channel between the valve of valve.
Further, further include that step 5) suction channel upper end also sets the alarm device for connecting control with touching switch, work as touching
When touching switch and being touched closure, alarm device prompt operator, which checks whether, has been drawn to foreign matter.
Further, the water inlet of the suction pump and the open connection of suction, the water outlet of the suction pump pass through row
Water pipe is guided into outside suction channel, and the touching switch control electrically operated valve is closed.
Further, the valve of the electrically operated valve uses reticular structure.
Further, the suction channel upper end is equipped with control switch.
Further, the suction channel upper end is additionally provided with operating handle.
Further, the outlet of the drainpipe, which is set up, prevents water flow from driving foreign matter.
Compared with prior art, the present invention having the following advantages and benefits:
It is of the invention a kind of for nuclear power station underwater foreign matter suction method, filtering is successively arranged in suction channel by setting
Foreign matter can be adsorbed on filter screen by net and suction pump by suction pump, and filter screen is equipped with touching switch, when foreign matter is touched
When to filter screen, an impact force can be formed to filter screen to touch touching switch closure, touching switch controls motor-driven valve again
Door closure, entire withdrawing device structure is simple, convenient for operation, is not knowing that specific location of the foreign matter in reactor vessel can also
With blind operation.
Suction channel upper end also sets the alarm device that control is connect with touching switch, alert when touching switch is touched closure
Report device prompt operator, which checks whether, has been drawn to foreign matter.
Another inventive point of the invention is exactly the valve of electrically operated valve using reticular structure, by using the valve of reticular structure
Door not will drive water flow in electrically operated valve closure, prevent foreign matter from falling off filter screen, and using the valve of reticular structure, base
There is no flowing water resistance in sheet when closed, filter screen moment closure can be collided in foreign matter, to prevent foreign matter from escaping to netted knot
Outside the valve of structure, normal electrically operated valve contributes to shut off or control fluid flow rate completely, and the present invention is just with its turn
Dynamic and control structure, relative to existing mechanical crawl structure, by using reticular structure valve as preventing foreign matter from missing
Structure, more convenient operation, foreign matter are not easy to miss.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram that the present invention is used for nuclear power station underwater foreign matter suction means.
Fig. 2 is control structure schematic illustration of the present invention；
Label and corresponding parts title in attached drawing:
1- suction channel, 2- suction is open, 3- electrically operated valve, 4- filter screen, 5- suction pump, 6- touching switch, 7- water inlet
Mouthful, 8- water outlet, 9- drainpipe, 10- valve, 11- control switch, 12- operating handle.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment
As shown in Figs. 1-2, the present invention is a kind of is used for nuclear power station underwater foreign matter suction method, comprising steps of
Step 1) is by under 5 swabbing action of suction pump that is arranged in suction channel 1, suction channel 1 is equipped with by bottom end and is taken out
Opening 2 is inhaled to suck foreign matter in reactor vessel and cooling water；
The unlatching motor-driven valve that step 2) foreign matter and cooling water are equipped with by aspirating open 2 tops and 1 junction of suction channel
Door 3；
Step 3) is by the foreign matter and cooling water of unlatching electrically operated valve 3 by 4 mistake of filter screen below suction pump 5 is arranged in
Filter, cooling water pass through filter screen 4, and foreign matter collides filter screen 5 and touches setting filter screen 5 is equipped with the closure of touching switch 6 above；
Control electrically operated valve 3 is closed after the step 4) touching switch 6 touches closure, by foreign matter be blocked in filter screen 5 with
In suction channel 1 between the valve 10 of electrically operated valve 3.
It include the suction channel 1 that can be protruded into reactor vessel, the suction for nuclear power station underwater foreign matter suction means
1 bottom end of pipeline is equipped with suction opening 2, aspirates opening 2 and is equivalent to horn mouth, convenient for forming the suction stream that draws water, aspirates in opening 2
Portion and 1 junction of suction channel are equipped with electrically operated valve 3, and filter screen 4 is successively arranged in the suction channel 1 on electrically operated valve 3 and is taken out
Water pump 5, the filter screen 5 are equipped with touching switch 6 above, and the water inlet 7 and pumping of suction pump 5 aspirate open 2 connection, described to draw water
The water outlet 8 of pump 5 guides 1 outside of suction channel by drainpipe 9.The valve 10 of electrically operated valve 3 uses reticular structure.
1 upper end of suction channel is equipped with control switch 11, controls the starting of suction pump 5 by control switch 11 or closes.Suction
1 upper end of pipeline is additionally provided with operating handle 12, can operate foreign matter removal device by 12 operator of operating handle and protrude into core
It is moved in reactor vessel.The outlet of drainpipe 9, which is set up, prevents water flow from driving foreign matter.1 upper end of suction channel also set with
The alarm device of the connection control of touching switch 6, when touching switch 6 is touched closure, alarm device prompt operator is checked whether
It has been drawn to foreign matter.
It is of the invention a kind of for nuclear power station underwater foreign matter suction method, filtering is successively arranged in suction channel by setting
Foreign matter can be adsorbed on filter screen by net and suction pump by suction pump, and filter screen is equipped with touching switch, when foreign matter is touched
When to filter screen, an impact force can be formed to filter screen to touch touching switch closure, touching switch controls motor-driven valve again
Door closure, entire withdrawing device structure is simple, convenient for operation, is not knowing that specific location of the foreign matter in reactor vessel can also
With blind operation.
Suction channel upper end also sets the alarm device that control is connect with touching switch, alert when touching switch is touched closure
Report device prompt operator, which checks whether, has been drawn to foreign matter.
Another inventive point of the invention is exactly the valve of electrically operated valve using reticular structure, and normal electrically operated valve contributes to
Shut off completely or controls fluid flow rate, and the present invention is grabbed just with its rotation and control structure relative to existing machinery
Structure, by using reticular structure valve as the structure for preventing foreign matter from missing, more convenient operation, foreign matter is not easy to miss.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (6)
1. one kind is used for nuclear power station underwater foreign matter suction method, it is characterised in that: comprising steps of
Step 1) is by under suction pump (5) swabbing action for being arranged in suction channel (1), suction channel (1) is equipped with by bottom end
Open (2) are aspirated to suck foreign matter in reactor vessel and cooling water；
The unlatching motor-driven valve that step 2 foreign matter and cooling water are equipped with by aspirating open (2) top and suction channel (1) junction
Door (3)；
Step 3) is by the foreign matter and cooling water of unlatching electrically operated valve (3) by filter screen (4) mistake below suction pump (5) is arranged in
Filter, cooling water simultaneously touch setting filter screen (4) above equipped with touching switch by filter screen (4), foreign matter collision filter screen (4)
(6) it is closed；
Control electrically operated valve (3) is closed after touching switch described in step 4) (6) touches closure, and foreign matter is blocked in filter screen (4)
In suction channel (1) between the valve (10) of electrically operated valve (3)；
The valve (10) of the electrically operated valve (3) uses reticular structure.
2. according to claim 1 a kind of for nuclear power station underwater foreign matter suction method, it is characterised in that: further include step
5) suction channel (1) upper end also sets the alarm device that control is connect with touching switch (6), when touching switch (6) is touched closure,
Alarm device prompt operator, which checks whether, has been drawn to foreign matter.
3. according to claim 1 a kind of for nuclear power station underwater foreign matter suction method, it is characterised in that: the suction pump
(5) open (2) connection of water inlet (7) and suction, the water outlet (8) of the suction pump (5) guide suction by drainpipe (9)
Outside pipeline (1), touching switch (6) control electrically operated valve (3) is closed.
4. according to claim 1 a kind of for nuclear power station underwater foreign matter suction method, it is characterised in that: the suction tube
Road (1) upper end is equipped with control switch (11).
5. according to claim 1 a kind of for nuclear power station underwater foreign matter suction method, it is characterised in that: the suction tube
Road (1) upper end is additionally provided with operating handle (12).
6. according to claim 3 a kind of for nuclear power station underwater foreign matter suction method, it is characterised in that: the drainpipe
(9) outlet, which is set up, prevents water flow from driving foreign matter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428547.5A CN107221369B (en) | 2017-06-08 | 2017-06-08 | One kind being used for nuclear power station underwater foreign matter suction method |
| PCT/CN2017/109814 WO2018223595A1 (en) | 2017-06-08 | 2017-11-08 | Method for extracting underwater foreign matters for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428547.5A CN107221369B (en) | 2017-06-08 | 2017-06-08 | One kind being used for nuclear power station underwater foreign matter suction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107221369A CN107221369A (en) | 2017-09-29 |
| CN107221369B true CN107221369B (en) | 2019-06-04 |
Family
ID=59948449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710428547.5A Active CN107221369B (en) | 2017-06-08 | 2017-06-08 | One kind being used for nuclear power station underwater foreign matter suction method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107221369B (en) |
| WO (1) | WO2018223595A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221369B (en) * | 2017-06-08 | 2019-06-04 | 安徽科创智慧知识产权服务有限公司 | One kind being used for nuclear power station underwater foreign matter suction method |
| CN109003694B (en) * | 2018-08-15 | 2020-04-24 | 三门技师学院 | Underwater foreign matter suction device of nuclear power station |
| CN113643835B (en) * | 2021-08-13 | 2022-05-06 | 连云港金辰实业有限公司 | Underwater foreign matter suction device of nuclear power station |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD154184A3 (en) * | 1979-12-05 | 1982-03-03 | Dietmar Walter | PUMP DEVICE FOR EXTRACTING FRIENDLY BODIES FROM HETEROGENIC PRESSURE WATER REACTORS |
| GB0301496D0 (en) * | 2003-01-23 | 2003-02-19 | G & K Valve Services Ltd | Sewerage overflow filtration apparatus |
| US20080137795A1 (en) * | 2006-10-20 | 2008-06-12 | Electric Power Research Institute, Inc. | Method and apparatus for removing corrosion products from a nuclear reactor |
| DE102010002436B3 (en) * | 2010-02-26 | 2011-07-21 | AREVA NP GmbH, 91052 | Apparatus and method for removing debris from the bottom of a reactor pressure vessel |
| CN203060924U (en) * | 2012-11-13 | 2013-07-17 | 上海核工程研究设计院 | Single-cylinder submarine foreign matter trapping device |
| CN103551341B (en) * | 2013-10-30 | 2015-06-03 | 核动力运行研究所 | Underwater foreign matter fishing device |
| CN203950559U (en) * | 2014-06-05 | 2014-11-19 | 国核电站运行服务技术有限公司 | Nuclear power station underwater foreign matter suction means |
| CN104051036A (en) * | 2014-06-05 | 2014-09-17 | 国核电站运行服务技术有限公司 | Nuclear power station underwater foreign matter suction apparatus |
| CN106486177B (en) * | 2015-09-02 | 2018-05-18 | 中核核电运行管理有限公司 | A kind of underwater high radioactivity foreign matter multifunctional ceiling extracting container and fishing process |
| CN105697426B (en) * | 2016-01-28 | 2018-06-12 | 南京拜思特环保设备有限公司 | A kind of filter device of sewage Pump Suction Nozzle |
| CN107221369B (en) * | 2017-06-08 | 2019-06-04 | 安徽科创智慧知识产权服务有限公司 | One kind being used for nuclear power station underwater foreign matter suction method |
| CN107274943B (en) * | 2017-06-08 | 2019-06-07 | 安徽科创智慧知识产权服务有限公司 | Foreign matter system is discharged in a kind of reactor vessel with bending elongation function |
-
2017
- 2017-06-08 CN CN201710428547.5A patent/CN107221369B/en active Active
- 2017-11-08 WO PCT/CN2017/109814 patent/WO2018223595A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018223595A1 (en) | 2018-12-13 |
| CN107221369A (en) | 2017-09-29 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20171115 Address after: 236800 Bozhou Anhui Industrial Park East of West ring, north of Guanghua Road, south of Guangming West Road Applicant after: Anhui Kechuang wisdom intellectual property services Co. Ltd. Address before: 610000 Sichuan city of Chengdu province high tech Zone sub Road No. 88 2 10 storey building No. 1002 Applicant before: SICHUAN XINGZHI ZHIHUI INTELLECTUAL PROPERTY OPERATION CO., LTD. |
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