CN108053898A - The peace of reactor pressure vessel and reactor pressure vessel note pipe - Google Patents
The peace of reactor pressure vessel and reactor pressure vessel note pipe Download PDFInfo
- Publication number
- CN108053898A CN108053898A CN201711457644.3A CN201711457644A CN108053898A CN 108053898 A CN108053898 A CN 108053898A CN 201711457644 A CN201711457644 A CN 201711457644A CN 108053898 A CN108053898 A CN 108053898A
- Authority
- CN
- China
- Prior art keywords
- pressure vessel
- collet
- reactor pressure
- peace
- note pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000010276 construction Methods 0.000 claims abstract description 30
- 238000003466 welding Methods 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 238000005253 cladding Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 9
- 239000007924 injection Substances 0.000 abstract description 9
- 230000035939 shock Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
- G21C15/14—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices from headers; from joints in ducts
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
- G21C15/12—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices from pressure vessel; from containment 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 present invention relates to a kind of peace of reactor pressure vessel and reactor pressure vessel notes to manage, and peace note pipe includes take over main body and collet equipped with straight tube runner.In the heat-insulated straight tube runner for being set on take over main body.Central protuberance is provided with throat tubular construction on the side wall of collet, insulating space is formed between throat tubular construction and the internal face of take over main body, when injecting peace water filling into pressure vessel through peace note pipe, when peace water filling flows through collet, insulating space can alleviate direct thermal shock of the colder peace water filling in injection to reactor pressure vessel.
Description
Technical field
The present invention relates to nuclear power fields, note and manage more specifically to the peace of a kind of reactor and reactor pressure vessel.
Background technology
The structure that certain heap-type reactor pressure vessel direct safety injection is taken at present for one as shown in Fig. 2, set throat tubular construction
Peace note the pipe 2', throat tubular construction 221' of 221' are the entity structure with peace note pipe 2' one, in the internal face protrusion of peace note pipe 2'.
Inner wall overlaying stainless steel clad can, the pipe 2' ends welding of peace note there are one stainless steel safe end, at the scene with same material
Stainless steel peace note pipeline welding.
The throat tubular construction can realize the quickly and efficiently injection of peace water filling, and can limit reactor pressure in pipeline breaking
Cooling water flow out of in container.
In other reactors, also have and the endoporus for pacifying note pipe 2' is made into straight tube structure, throat tubular construction 221' will be allowed to take
Disappear, allow peace water filling directly through rear injection.
But be inserted into connecting tube to during injection peace water filling in peace note pipe 2', pacify water filling directly with reactor pressure vessel body
Contact, it is larger with the reactor pressure vessel body temperature difference because peace water filling temperature is relatively low, larger thermal stress can be generated, to reaction
Core pressure vessel causes pressure-bearing thermal shock, threatens the security and integrality of reactor pressure vessel.
The content of the invention
The technical problem to be solved in the present invention is, provides a kind of colder peace water filling of alleviation in injection to reacting stacking pressure
The reactor pressure vessel of the direct thermal shock of force container and the peace note pipe of reactor pressure vessel.
The technical solution adopted by the present invention to solve the technical problems is：Construct a kind of peace note of reactor pressure vessel
Pipe, take over main body and collet including being equipped with straight tube runner；
It is described heat-insulated to be set in the straight tube runner of the take over main body；
Central protuberance is provided with throat tubular construction, the throat tubular construction and the take over main body on the side wall of the collet
Internal face between form insulating space.
Preferably, the center of the throat tubular construction from side wall to the collet of the collet, which is arched upward, forms.
Preferably, the axial section of the side wall of the corresponding collet of the throat tubular construction is arc-shaped or arch.
Preferably, at least one end of the collet is fixedly connected with the internal face of the take over main body.
Preferably, the side wall of the collet is equipped with several water holes connected with the insulating space.
Preferably, the water hole is distributed in along border on the side wall of the collet, and with the throat tubular construction position
It is corresponding.
Preferably, the throat tubular construction is set along the side wall border of the collet.
Preferably, the throat tubular construction includes several protrusions being distributed along the side wall border of the collet, each described
It is raised that insulating space is formed between the internal face of the take over main body, and each insulating space is interconnected.
Preferably, the internal face of the take over main body is equipped with the overlay cladding that wlding built-up welding is formed；
The outer end face of the take over main body is equipped with the built-up welding end face that wlding built-up welding is formed；
The wlding is the wlding of stainless steel.
Preferably, collet end corresponding with the pressure vessel inner end is equipped with and hangs the cylindrical body pair
The hanging platform on end face answered.
A kind of reactor pressure vessel, including cylindrical body and peace note pipe, the peace note pipe is arranged on described
On the side wall of cylindrical body, the endoporus of the collet is connected with the inner cavity of the cylindrical body.
Implement the reactor pressure vessel of the present invention and the peace note pipe of reactor pressure vessel, have the advantages that：
Insulating space is formd between collet and the internal face of take over main body, peace water filling is being injected into pressure vessel through peace note pipe
When, when peace water filling flows through collet, insulating space can alleviate colder peace water filling in injection to reactor pressure vessel
Direct thermal shock.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the invention will be further described, in attached drawing：
Fig. 1 is the cross-sectional view when peace note pipe in the embodiment of the present invention is installed on the side wall of pressure vessel；
Fig. 2 is the cross-sectional view of the peace note pipe in background technology.
Specific embodiment
In order to which the technical features, objects and effects to the present invention are more clearly understood, now compare attached drawing and be described in detail
The specific embodiment of the present invention.
As shown in Figure 1, the reactor pressure vessel in a preferred embodiment of the invention includes cylindrical body 1 and peace note
Pipe 2, peace note pipe 2 are arranged on the side wall of cylindrical body 1.
Preferably, the quantity of peace note pipe 2 can be for one or multiple, in general, peace note pipe 2 includes two, symmetrically set
It puts in cylindrical body 1 two to offside, and lower section with water outlet pipe is taken over positioned at the water inlet of pressure vessel, directly to reactor core note
Water.
Peace note pipe 2 includes being equipped with the take over main body 21 of straight tube runner and collet 22, and collet 22 is arranged on take over main body
In 21 straight tube runner.The endoporus of collet 22 is connected with the inner cavity of the cylindrical body 1 of pressure vessel, can through peace note pipe 2 to
The inner cavity injection peace water filling of pressure vessel, peace water filling are flowed into pressure vessel, met in major accident after collet 22 is flowed through
When directly to reactor core water filling, realize the basic security function of core deluge.
The internal face of take over main body 21 is equipped with the overlay cladding 24 that wlding built-up welding is formed, and is set on the outer end face of take over main body 21
There is the built-up welding end face 25 that wlding built-up welding is formed.Wlding is the wlding of stainless steel, for allowing take over main body 21 can be at the scene
It is welded with the stainless steel connecting tube of same material with built-up welding end face 25.
The both ends of collet 22 are fixedly connected respectively with take over main body 21, connection mode be usually be welded to connect or
It is connected by the way of sealed, collet 22 can also only have wherein one end to be fixedly connected with take over main body 21.
Further, central protuberance is provided with throat tubular construction 221 on the side wall of collet 22, throat tubular construction 221 is with connecing
Insulating space A is formed between the internal face of pipe main body 21.
Due to being provided with collet 22, and insulating space A is formd between the internal face of take over main body 21, in peace water filling
When peace water filling is injected into pressure vessel through peace note pipe 2, pacify and isolate between water filling and take over main body 21, collet 22 can be alleviated
Direct thermal shock of the colder peace water filling in injection to reactor pressure vessel.
Meanwhile the throat tubular construction 221 on collet 22 receives protrusion into center, in peace water filling after throat tubular construction 221,
Runner becomes larger, and generates negative pressure, can realize that peace water filling is efficiently injected, in addition, in generator tube road cut accident, to central protuberance
Throat tubular construction 221 can be flowed outwardly with limited reactions core pressure vessel internal coolant.
In the present embodiment, throat tubular construction 221 is set along the side wall border of collet 22, and collet 22 is allowed to form a stage casing
The smaller throat tubular construction of position section shape, makes the outer ring of collet 22 form the insulating space A of whole circle, will flow through collet 22
Peace water filling and take over main body 21 between isolate.
The center of throat tubular construction 221 from side wall to the collet 22 of collet 22, which is arched upward, to be formed, and the shape to arch upward can be
Hemispherical or arch or arch.In the present embodiment, the axial section of 221 corresponding side wall of throat tubular construction is arc-shaped,
In other embodiment, the axial section of 221 corresponding side wall of throat tubular construction also can be domed.
In other embodiments, throat tubular construction 221 may also comprise multiple protrusions along the side wall border distribution of collet 22,
Form insulating space A between each protrusion and the internal face of take over main body 21, and each insulating space A is interconnected, will flow through every
Isolate between the peace water filling of hot jacket 22 and take over main body 21.
The side wall of collet 22 is equipped with several water holes 222 connected with insulating space A, and water hole 222 can balance
Pressure difference inside and outside collet 22 improves 22 force-bearing situation of collet.
Preferably, water hole 222 is distributed in along border on the side wall of collet 22, can make the inside and outside of 22 border of collet
Pressure difference can be balanced.Further, water hole 222 is corresponding with 221 position of throat tubular construction, and water hole 222 may also be arranged on
The other positions of collet 22 can will connect inside and outside insulating space A.
Preferably, the end corresponding with the pressure vessel inner end of collet 22 is right equipped with the cylindrical body 1 is hung
Hanging platform 23 on the end face answered, hanging platform 23 are usually flange, are bonded with cylindrical body 1, can play the role of positioning.At other
In embodiment, collet 22 can also cancel hanging platform 23.
It is to be appreciated that above-mentioned each technical characteristic can be used in any combination and unrestricted.
The foregoing is merely the embodiment of the present invention, are not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (11)
- A kind of 1. peace note pipe of reactor pressure vessel, which is characterized in that the take over main body including being equipped with straight tube runner（21）With Collet（22）；The collet（22）It is arranged on the take over main body（21）Straight tube runner in；The collet（22）Side wall on central protuberance is provided with throat tubular construction（221）, the throat tubular construction（221）With institute State take over main body（21）Internal face between form insulating space（A）.
- 2. the peace note pipe of reactor pressure vessel according to claim 1, which is characterized in that the throat tubular construction（221） By the collet（22）Side wall to the collet（22）Center arch upward to be formed.
- 3. the peace note pipe of reactor pressure vessel according to claim 1, which is characterized in that the throat tubular construction（221） The corresponding collet（22）Side wall axial section is arc-shaped or arch.
- 4. the peace note pipe of reactor pressure vessel according to claim 1, which is characterized in that the collet（22）Extremely Few one end and the take over main body（21）Internal face be fixedly connected.
- 5. the peace note pipe of reactor pressure vessel according to claim 1, which is characterized in that the collet（22）Side Wall is equipped with and the insulating space（A）Several water holes of connection（222）.
- 6. the peace note pipe of reactor pressure vessel according to claim 5, which is characterized in that the water hole（222）Edge Border is distributed in the collet（22）Side wall on, and with the throat tubular construction（221）Position corresponds to.
- 7. the peace note pipe of reactor pressure vessel according to any one of claims 1 to 6, which is characterized in that the trunnion Structure（221）Along the collet（22）Side wall border set.
- 8. the peace note pipe of reactor pressure vessel according to any one of claims 1 to 6, which is characterized in that the trunnion Structure（221）Including along the collet（22）The distribution of side wall border several protrusions, each protrusion takes over described Main body（21）Internal face between form insulating space（A）, and each insulating space（A）It is interconnected.
- 9. the peace note pipe of reactor pressure vessel according to any one of claims 1 to 6, which is characterized in that described to take over Main body（21）Internal face be equipped with wlding built-up welding formed overlay cladding（24）；The take over main body（21）Outer end face be equipped with wlding built-up welding formed built-up welding end face（25）；The wlding is the wlding of stainless steel.
- 10. the peace note pipe of reactor pressure vessel according to any one of claims 1 to 6, which is characterized in that described heat-insulated Set（22）End corresponding with the pressure vessel inner end is equipped with and hangs the cylindrical body（1）Hanging platform on corresponding end face （23）.
- 11. a kind of reactor pressure vessel, which is characterized in that including cylindrical body（1）And any one of claims 1 to 10 institute The peace note pipe stated（2）, the peace note pipe（2）It is arranged on the cylindrical body（1）Side wall on, the collet（22）Endoporus With the cylindrical body（1）Inner cavity connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711457644.3A CN108053898A (en) | 2017-12-28 | 2017-12-28 | The peace of reactor pressure vessel and reactor pressure vessel note pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711457644.3A CN108053898A (en) | 2017-12-28 | 2017-12-28 | The peace of reactor pressure vessel and reactor pressure vessel note pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108053898A true CN108053898A (en) | 2018-05-18 |
Family
ID=62129005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711457644.3A Pending CN108053898A (en) | 2017-12-28 | 2017-12-28 | The peace of reactor pressure vessel and reactor pressure vessel note pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108053898A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2301764A1 (en) * | 1975-02-20 | 1976-09-17 | Commissariat Energie Atomique | Expansion joint for nuclear reactor - connecting a sheet metal liner of a heated pressure vessel to pipe passing into the vessel |
| US5345484A (en) * | 1993-05-03 | 1994-09-06 | General Electric Company | Feedwater nozzle and method of repair |
| US5377242A (en) * | 1993-11-15 | 1994-12-27 | B&W Nuclear Service Company | Method and system for emergency core cooling |
| EP0681301A1 (en) * | 1994-05-04 | 1995-11-08 | General Electric Company | Feedwater nozzle and method of repair |
| JPH109446A (en) * | 1996-06-25 | 1998-01-13 | Ishikawajima Harima Heavy Ind Co Ltd | Thermal sleeve pipe stand |
| JPH10319168A (en) * | 1997-05-15 | 1998-12-04 | Ishikawajima Harima Heavy Ind Co Ltd | Nozzle device of reactor pressure vessel |
| JP2000193150A (en) * | 1998-12-28 | 2000-07-14 | Ishikawajima Harima Heavy Ind Co Ltd | Fluid merging part structure in pipe |
| JP2002139593A (en) * | 2000-11-02 | 2002-05-17 | Ishikawajima Harima Heavy Ind Co Ltd | Nuclear reactor pressure vessel |
| JP2007147466A (en) * | 2005-11-29 | 2007-06-14 | Hitachi Ltd | Water supply device for nuclear reactor |
| JP2009275661A (en) * | 2008-05-16 | 2009-11-26 | Hitachi-Ge Nuclear Energy Ltd | Jet pump and nuclear reactor |
| JP2010084562A (en) * | 2008-09-30 | 2010-04-15 | Hitachi-Ge Nuclear Energy Ltd | Jet pump and nuclear reactor |
| JP2013242259A (en) * | 2012-05-22 | 2013-12-05 | Hitachi-Ge Nuclear Energy Ltd | Jet pump for nuclear reactor |
| CN104658621A (en) * | 2015-01-28 | 2015-05-27 | 中科华核电技术研究院有限公司 | Nuclear reactor direct safety injection system |
| CN208271568U (en) * | 2017-12-28 | 2018-12-21 | 中广核研究院有限公司 | The peace of reactor pressure vessel and reactor pressure vessel note pipe |
-
2017
- 2017-12-28 CN CN201711457644.3A patent/CN108053898A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2301764A1 (en) * | 1975-02-20 | 1976-09-17 | Commissariat Energie Atomique | Expansion joint for nuclear reactor - connecting a sheet metal liner of a heated pressure vessel to pipe passing into the vessel |
| US5345484A (en) * | 1993-05-03 | 1994-09-06 | General Electric Company | Feedwater nozzle and method of repair |
| US5377242A (en) * | 1993-11-15 | 1994-12-27 | B&W Nuclear Service Company | Method and system for emergency core cooling |
| EP0681301A1 (en) * | 1994-05-04 | 1995-11-08 | General Electric Company | Feedwater nozzle and method of repair |
| JPH109446A (en) * | 1996-06-25 | 1998-01-13 | Ishikawajima Harima Heavy Ind Co Ltd | Thermal sleeve pipe stand |
| JPH10319168A (en) * | 1997-05-15 | 1998-12-04 | Ishikawajima Harima Heavy Ind Co Ltd | Nozzle device of reactor pressure vessel |
| JP2000193150A (en) * | 1998-12-28 | 2000-07-14 | Ishikawajima Harima Heavy Ind Co Ltd | Fluid merging part structure in pipe |
| JP2002139593A (en) * | 2000-11-02 | 2002-05-17 | Ishikawajima Harima Heavy Ind Co Ltd | Nuclear reactor pressure vessel |
| JP2007147466A (en) * | 2005-11-29 | 2007-06-14 | Hitachi Ltd | Water supply device for nuclear reactor |
| JP2009275661A (en) * | 2008-05-16 | 2009-11-26 | Hitachi-Ge Nuclear Energy Ltd | Jet pump and nuclear reactor |
| JP2010084562A (en) * | 2008-09-30 | 2010-04-15 | Hitachi-Ge Nuclear Energy Ltd | Jet pump and nuclear reactor |
| JP2013242259A (en) * | 2012-05-22 | 2013-12-05 | Hitachi-Ge Nuclear Energy Ltd | Jet pump for nuclear reactor |
| CN104658621A (en) * | 2015-01-28 | 2015-05-27 | 中科华核电技术研究院有限公司 | Nuclear reactor direct safety injection system |
| CN208271568U (en) * | 2017-12-28 | 2018-12-21 | 中广核研究院有限公司 | The peace of reactor pressure vessel and reactor pressure vessel note pipe |
Non-Patent Citations (1)
| Title |
|---|
| 曹方方等: "反应堆直接安注结构热工影响分析", 原子能科学技术, vol. 51, no. 01, pages 46 - 50 * |
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