CN107228352B - A kind of heat exchange structure of reactor evaporator - Google Patents
A kind of heat exchange structure of reactor evaporator Download PDFInfo
- Publication number
- CN107228352B CN107228352B CN201710374892.5A CN201710374892A CN107228352B CN 107228352 B CN107228352 B CN 107228352B CN 201710374892 A CN201710374892 A CN 201710374892A CN 107228352 B CN107228352 B CN 107228352B
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- Prior art keywords
- spring
- sheet rubber
- shaped heat
- transfer pipe
- heat
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/10—Water tubes; Accessories therefor
- F22B37/20—Supporting arrangements, e.g. for securing water-tube sets
- F22B37/205—Supporting and spacing arrangements for tubes of a tube bundle
- F22B37/206—Anti-vibration supports for the bends of U-tube steam generators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of heat exchange structure of reactor evaporator, including bundle wrapper, several single u-shaped heat-transfer pipes, U-shaped heat-transfer pipe includes straight pipe and curved section, and the curved section and part straight pipe of U-shaped heat-transfer pipe are located inside bundle wrapper；It is fixedly connected between adjacent two single u-shaped heat-transfer pipe by several connecting rods；It further include spring, the spring one end is fixedly connected on bundle wrapper inner wall, and the other end is fixedly connected on the curved section of U-shaped heat-transfer pipe, and axle of spring is conllinear with the centre symmetry line for the U-shaped heat-transfer pipe being attached thereto；Further include the sheet rubber being set on spring, through-hole is set on sheet rubber, the through-hole aperture is greater than spring line footpath, is less than spring outer diameter；The opposite sides side of the sheet rubber is fixedly connected by connector with the inner wall of bundle wrapper.The present invention is bad using vibrationproof damping efficiency in the prior art to solve the problems, such as, realizes the purpose for improving damping efficiency, prolonging the service life.
Description
Technical field
The present invention relates to nuclear power plant reactor steam generator field of heat transfer, and in particular to a kind of reactor evaporator changes
Heat structure.
Background technique
Steam generator is the heavy equipment that pressure vessel is only second in nuclear power station.Its effect is primary Ioops water from core
The heat transfer taken out of in reactor gives secondary circuit water, and it is made to become steam.There are thousands of thin-walleds to pass inside steam generator
Heat pipe can be divided into vertical, inverted-loop tube, natural circulation steam generator according to heat transfer tube shape.Primary Ioops water flows in heat-transfer pipe
Dynamic, secondary circuit water flows outside pipe, heat exchange is carried out between two water flow circuits by heat-transfer pipe with this, then in steam generation
The top of device forms steam and generates electricity.Due to there is water flow flowing inside and outside heat-transfer pipe, heat-transfer pipe is generated vibration by water currents
It is dynamic to cause the irreversible damage such as fretting, stress corrosion to heat-transfer pipe.Therefore it is added on heat-transfer pipe in the prior art
Vibrationproof item reduces vibration.But existing vibrationproof item is only supported the bending section of heat-transfer pipe, while it uses rigid support
Mode is consolidated, and rigid supporting element is bigger instead by water impact, and effectiveness in vibration suppression is limited, service life is limited.
Summary of the invention
The purpose of the present invention is to provide a kind of heat exchange structures of reactor evaporator, to solve in the prior art using anti-
The bad problem of vibration damping efficiency, realizes the purpose for improving damping efficiency, prolonging the service life.
The present invention is achieved through the following technical solutions:
A kind of heat exchange structure of reactor evaporator, including bundle wrapper, several single u-shaped heat-transfer pipes, the U-shaped heat-transfer pipe
Including straight pipe and curved section, the curved section and part straight pipe of U-shaped heat-transfer pipe are located inside bundle wrapper；On bundle wrapper also
It is provided with water inlet flow channel, outlet passage, is fixedly connected between adjacent two single u-shaped heat-transfer pipe by several connecting rods；It further include bullet
Spring, the spring one end are fixedly connected on bundle wrapper inner wall, and the other end is fixedly connected on the curved section of U-shaped heat-transfer pipe, and bullet
Spring axis is conllinear with the centre symmetry line for the U-shaped heat-transfer pipe being attached thereto；It further include the sheet rubber being set on spring, sheet rubber
Upper setting through-hole, the through-hole aperture are greater than spring line footpath, are less than spring outer diameter；The opposite sides side of the sheet rubber passes through company
Fitting is fixedly connected with the inner wall of bundle wrapper.
Only bending section is supported for vibrationproof item in the prior art, while being asked using vibrationproof damping efficiency is bad
Topic, the present invention propose a kind of heat exchange structure of reactor evaporator, including existing U-shaped heat-transfer pipe and bundle wrapper, U-shaped biography
The in-out end of heat pipe is arranged according to existing way across bundle wrapper, wherein U-shaped heating surface bank provides runner for primary Ioops water,
Secondary circuit water enters in bundle wrapper from the water inlet flow channel of bundle wrapper, carries out after heat exchange with U-shaped heating surface bank from water flow out
Road outflow.It is fixedly connected between adjacent two single u-shaped heat-transfer pipe by several connecting rods, is by several connecting rods, by each U
Type heat-transfer pipe is connected as an entirety, avoid in the prior art U-shaped heat-transfer pipe be separately provided, respectively vibrate.By
It is fixedly connected in several U-shaped heat-transfer pipes for overall structure, is limited in the lateral direction by several connecting rods, Wu Fazai
It is freely shaken, to improve integrally-built stability, largely reduces oscillation crosswise frequency and amplitude, from
And can ensure U-shaped heat-transfer pipe has better lateral stability.It further include spring, spring one end is fixedly connected on bundle wrapper
Inner wall, the other end is fixedly connected on the curved section of U-shaped heat-transfer pipe, and the centre symmetry line of axle of spring and U-shaped heating surface bank is total
Line is the top that spring is connected to the curved section of U-shaped heat-transfer pipe, due to several U-shaped heat-transfer pipes become by connecting rod it is whole
Body, therefore spring is connected on any U-shaped heat-transfer pipe.It is connected between U-shaped heat-transfer pipe and bundle wrapper, is passed through by spring
Spring offsets the longitudinal vibration of U-shaped heat-transfer pipe, and the kinetic energy of vibration is rapidly converted into elastic potential energy and is consumed.But
If being to carry out vibration damping only by spring, spring by upper and lower vibration is generated after water impact under the drive of U-shaped heat-transfer pipe,
Elastic potential energy of the spring consumption is very slow, and spring, which will do it continuous elongation, to be shortened up to being completely consumed elastic potential energy, this process consumption
When the longer effectiveness in vibration suppression that will lead to it is bad, U-shaped heat-transfer pipe can still be shaken repeatedly along axle of spring direction.Therefore the present invention is gone back
Provided with the sheet rubber being set on spring, the wire of spring is passed through in the through-hole on sheet rubber, simultaneously because through-hole aperture
Less than spring outer diameter, therefore sheet rubber is covered and be will not fall off on spring, during spring carries out continuous elongation shortening, due to
Spring can not be integrally through through-hole, therefore spring is isolated into two parts by sheet rubber, and two parts spring is respectively constantly to rubber
Piece is squeezed to two sides, by the interior rubbing action of sheet rubber, rapidly depletes great number of elastic potential energy, rapidly turns elastic potential energy
It can be carried out consumption in turning to, avoid and need to be consumed by external drag, disappear using elastic potential energy when spring damping merely
Slow-footed problem is consumed, to largely improve damping efficiency；Water impact can also pass through on sheet rubber simultaneously
The elasticity of sheet rubber offsets impact force, therefore also solves conventional rigid shock absorption bar service life is not under long-term impact
Long problem.The opposite sides side of sheet rubber is fixedly connected by connector with the inner wall of bundle wrapper, so that sheet rubber
Both ends are fixed, and will not be moved with water flow.
Preferably, M block sheet rubber is arranged on the spring, wherein M >=2.At least two pieces are arranged on a spring
Sheet rubber more improves the depletion rate to elastic potential energy, to more improve damping efficiency.
Preferably, the connector is rigid connector.Ensure that intensity improves stability.
Preferably, if the water (flow) direction of plane where sheet rubber is towards U-shaped heat-transfer pipe direction, the spring is to draw
Spring；If the water (flow) direction of plane where sheet rubber is directed away from U-shaped heat-transfer pipe direction, the spring is pressure spring.It is
So that spring to the active force of sheet rubber always towards the opposite direction of water flow, thus sheet rubber is provided always reset it is outer
Power, sheet rubber quickly carry out interior friction consumption elastic potential energy under opposite bourn acting force and acting force of the spring collective effect,
More ensure excellent effectiveness in vibration suppression with this.
The connecting rod is made by metallic silver.Metallic silver has very high thermal coefficient, therefore connects phase by connecting rod
Adjacent two U-shaped heat-transfer pipes, additionally it is possible to the heat exchanger effectiveness for improving heat exchange area, improving reactor evaporator.
Compared with prior art, the present invention having the following advantages and benefits:
1, a kind of heat exchange structure of reactor evaporator of the present invention passes through several between adjacent two single u-shaped heat-transfer pipe
Connecting rod is fixedly connected, and is to connect each U-shaped heat-transfer pipe as an entirety by several connecting rods, avoid existing skill
U-shaped heat-transfer pipe is separately provided in art, respectively vibrates.Since several U-shaped heat-transfer pipes is fixedly connected with for overall structure,
It is limited by several connecting rods in the lateral direction, can not freely be shaken again, so that integrally-built stability is improved,
Oscillation crosswise frequency and amplitude are reduced, largely so as to ensure that U-shaped heat-transfer pipe has better lateral stability.
2, a kind of heat exchange structure of reactor evaporator of the present invention, is also provided with the sheet rubber being set on spring, spring
Wire pass through in the through-hole on sheet rubber, simultaneously because through-hole aperture is less than spring outer diameter, therefore sheet rubber is covered in spring
On will not fall off, during spring carries out continuous elongation and shortens, since spring can not be integrally through through-hole, sheet rubber
Spring is isolated into two parts, two parts spring respectively constantly squeezes sheet rubber to two sides, by rubbing in sheet rubber
Wiping effect, rapidly deplete great number of elastic potential energy, rapidly by elastic potential energy be converted into can be carried out consumption, avoid simple use
The problem that elastic potential energy needs to be consumed by external drag when spring damping, depletion rate is slow, to largely mention
High damping efficiency；Water impact can also offset impact force by the elasticity of sheet rubber on sheet rubber simultaneously, because
This also solves the conventional rigid shock absorption bar problem that service life is not grown under long-term impact.
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 cross-sectional view of the specific embodiment of the invention；
Fig. 2 is the partial structural diagram of spring and sheet rubber in the specific embodiment of the invention.
Label and corresponding parts title in attached drawing:
1-U type heating surface bank, 2- bundle wrapper, 21- water inlet flow channel, 22- outlet passage, 3- connecting rod, 4- spring, 5- rubber
Piece, 6- through-hole, 7- connector.
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 1:
A kind of heat exchange structure of reactor evaporator as shown in Figures 1 and 2, including bundle wrapper 2, several single u-shaped pass
Heat pipe 1, the U-shaped heat-transfer pipe 1 include straight pipe and curved section, and the curved section and part straight pipe of U-shaped heat-transfer pipe 1 are located at tube bank
Inside coaming plate 2；It is additionally provided with water inlet flow channel 21, outlet passage 22 on bundle wrapper 2, passes through between adjacent two single u-shaped heat-transfer pipe 1
Several connecting rods 3 are fixedly connected；It further include spring 4, described 4 one end of spring is fixedly connected on 2 inner wall of bundle wrapper, and the other end is solid
Surely it is connected to the curved section of U-shaped heat-transfer pipe 1, and 4 axis of spring is conllinear with the centre symmetry line for the U-shaped heat-transfer pipe 1 being attached thereto；
Further include the sheet rubber 5 being set on spring 4, through-hole 6 is set on sheet rubber 5,6 aperture of through-hole is greater than 4 line footpath of spring, small
In 4 outer diameter of spring；The opposite sides side of the sheet rubber 5 is fixedly connected by connector 7 with the inner wall of bundle wrapper 2.It is described
M block sheet rubber 5 is arranged on spring 4, wherein M >=2.The connector 7 is rigid connector.If 5 place plane of sheet rubber
Water (flow) direction is towards U-shaped 1 direction of heat-transfer pipe, then the spring 4 is tension spring；If the water (flow) direction of 5 place plane of sheet rubber
It is directed away from U-shaped 1 direction of heat-transfer pipe, then the spring 4 is pressure spring.The connecting rod 3 is made by metallic silver.Adjacent
It is fixedly connected between two single u-shaped heat-transfer pipes 1 by several connecting rods 3, is by several connecting rods 3, by each U-shaped heat-transfer pipe 1
Connect become an entirety, avoid in the prior art U-shaped heat-transfer pipe be separately provided, respectively vibrate.Due to several U
Type heat-transfer pipe is fixedly connected with for overall structure, is limited in the lateral direction by several connecting rods, can not carry out freedom again
Shaking reduce oscillation crosswise frequency and amplitude, largely to improve integrally-built stability so as to true
U-shaped heat-transfer pipe is protected with better lateral stability.It is also provided with the sheet rubber being set on spring, the wire of spring passes through
In through-hole on sheet rubber, simultaneously because through-hole aperture is less than spring outer diameter, therefore sheet rubber is covered and be will not fall off on spring,
During spring carries out continuous elongation shortening, since spring can not be isolated by spring integrally through through-hole, sheet rubber
Two parts, two parts spring respectively constantly squeeze sheet rubber to two sides, by the interior rubbing action of sheet rubber, quickly disappear
Consume great number of elastic potential energy, rapidly by elastic potential energy be converted into can be carried out consumption, avoid merely use spring damping when bullet
The property problem that potential energy needs to be consumed by external drag, depletion rate is slow, to largely improve damping efficiency；
Water impact can also offset impact force by the elasticity of sheet rubber on sheet rubber simultaneously, therefore also solve tradition
The rigid shock absorption bar problem that service life is not grown under long-term impact.
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, any modification, equivalent substitution, improvement and etc. done all within the spirits and principles of the present invention should all include
Within protection scope of the present invention.
Claims (5)
1. a kind of heat exchange structure of reactor evaporator, including bundle wrapper (2), several single u-shaped heat-transfer pipes (1), the U-shaped biography
Heat pipe (1) includes straight pipe and curved section, and the curved section and part straight pipe of U-shaped heat-transfer pipe (1) are located in bundle wrapper (2)
Portion；Water inlet flow channel (21), outlet passage (22) are additionally provided on bundle wrapper (2), which is characterized in that adjacent two single u-shaped heat transfer
It is fixedly connected between pipe (1) by several connecting rods (3)；It further include spring (4), described spring (4) one end is fixedly connected on pipe
Beam coaming plate (2) inner wall, the other end are fixedly connected on the curved section of U-shaped heat-transfer pipe (1), and springs (4) axis and the U that is attached thereto
The centre symmetry line of type heat-transfer pipe (1) is conllinear；It further include the sheet rubber (5) being set on spring (4), sheet rubber is arranged on (5)
Through-hole (6), through-hole (6) aperture are greater than spring (4) line footpath, are less than spring (4) outer diameter；Opposite the two of the sheet rubber (5)
Side is fixedly connected by connector (7) with the inner wall of bundle wrapper (2).
2. a kind of heat exchange structure of reactor evaporator according to claim 1, which is characterized in that on the spring (4)
It is arranged with M block sheet rubber (5), wherein M >=2.
3. a kind of heat exchange structure of reactor evaporator according to claim 1, which is characterized in that the connector (7)
For rigid connector.
4. a kind of heat exchange structure of reactor evaporator according to claim 1, which is characterized in that if sheet rubber (5) institute
Plane water (flow) direction towards U-shaped heat-transfer pipe (1) direction, then the spring (4) is tension spring；If where sheet rubber (5)
The water (flow) direction of plane is directed away from U-shaped heat-transfer pipe (1) direction, then the spring (4) is pressure spring.
5. a kind of heat exchange structure of reactor evaporator according to claim 1, which is characterized in that the connecting rod (3) by
Metallic silver is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710374892.5A CN107228352B (en) | 2017-05-24 | 2017-05-24 | A kind of heat exchange structure of reactor evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710374892.5A CN107228352B (en) | 2017-05-24 | 2017-05-24 | A kind of heat exchange structure of reactor evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107228352A CN107228352A (en) | 2017-10-03 |
| CN107228352B true CN107228352B (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710374892.5A Active CN107228352B (en) | 2017-05-24 | 2017-05-24 | A kind of heat exchange structure of reactor evaporator |
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| Country | Link |
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| CN (1) | CN107228352B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945148B (en) * | 2018-06-20 | 2020-06-12 | 青岛佰腾科技有限公司 | Steam boiler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108586A (en) * | 1984-12-05 | 1986-06-10 | 三菱重工业株式会社 | The vibration proof bracing or strutting arrangement of heat transfering tube of heat exchanger |
| CN201218677Y (en) * | 2008-05-23 | 2009-04-08 | 攀枝花新钢钒股份有限公司 | Shell-and-tube heat exchanger |
| CN103594127A (en) * | 2013-11-13 | 2014-02-19 | 南通曙光新能源装备有限公司 | Energy-saving nuclear power evaporator |
| RU2609900C1 (en) * | 2016-02-01 | 2017-02-07 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" | Nuclear reactor |
-
2017
- 2017-05-24 CN CN201710374892.5A patent/CN107228352B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85108586A (en) * | 1984-12-05 | 1986-06-10 | 三菱重工业株式会社 | The vibration proof bracing or strutting arrangement of heat transfering tube of heat exchanger |
| CN201218677Y (en) * | 2008-05-23 | 2009-04-08 | 攀枝花新钢钒股份有限公司 | Shell-and-tube heat exchanger |
| CN103594127A (en) * | 2013-11-13 | 2014-02-19 | 南通曙光新能源装备有限公司 | Energy-saving nuclear power evaporator |
| RU2609900C1 (en) * | 2016-02-01 | 2017-02-07 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" | Nuclear reactor |
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| Publication number | Publication date |
|---|---|
| CN107228352A (en) | 2017-10-03 |
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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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