CN109737244A - Nuclear power plant's penetration piece end socket and its penetration piece structure - Google Patents
Nuclear power plant's penetration piece end socket and its penetration piece structure Download PDFInfo
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- CN109737244A CN109737244A CN201910118911.7A CN201910118911A CN109737244A CN 109737244 A CN109737244 A CN 109737244A CN 201910118911 A CN201910118911 A CN 201910118911A CN 109737244 A CN109737244 A CN 109737244A
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- end socket
- penetration piece
- nuclear power
- power plant
- cavity
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Abstract
The invention discloses a kind of nuclear power plant's penetration piece end sockets, comprising: end socket main body, end socket main body are provided with through-hole, wherein, penetration piece end socket is additionally provided with inner open formula cavity, and inner open formula cavity is arranged in end socket main body, and is connected to the through-hole of end socket main body setting.Compared with the existing technology, nuclear power plant's penetration piece end enclosure structure of the present invention is simple and compact, is easily installed and safeguards, and it can fully ensure that the excellent sealing of pipeline and penetration piece end socket, and use can be dismantled repeatedly, influence of the medium temperature acute variation to wall temperature change can effectively be slowed down, and then the heat fatigue effect and heat ageing of wall near sleeve is effectively reduced.In addition, the present invention also provides a kind of nuclear power plant's penetration piece structures.
Description
Technical field
The invention belongs to nuclear power field, it is more particularly related to a kind of nuclear power plant's penetration piece end socket and its run through
Part structure.
Background technique
Penetration piece end socket be will be through walls after pipeline be fixed on the device of wall, be both the component of pipeline, to accommodate work
The channel of skill medium provides constraint support to pipeline also by the welding with casing, guarantees that medium is effectively isolated with extraneous, keep away
Exempt from the escape of radioactivity not between chummery or environment.
Penetration piece end socket commonly used in the prior art is only carried out in a manner of forced-convection heat transfer in inner wall and fluid media (medium)
Heat transfer, when temperature of fluid medium acute variation, penetration piece end socket inner wall temperature acutely changes in a relatively short period of time therewith
Become.Meanwhile the temperature change of penetration piece leads to the mode of heat transfer, influences the temperature of sleeve near zone wall rapidly.Work as Jie
It, can be to the concrete generation heat fatigue of wall near sleeve when matter temperature is iteratively produced acute variation with nuclear power plant's operating status
Effect causes wall crazing to destroy.
In view of this, it is necessory to provide a kind of structure is simple, is easily installed and safeguards nuclear power plant's penetration piece end socket and
Its penetration piece structure effectively slows down influence of the medium temperature acute variation to wall temperature change, and then wall is effectively reduced
Heat fatigue effect.
Summary of the invention
It is an object of the invention to: overcome the deficiencies of the prior art and provide that a kind of structure is simple, is easily installed and safeguards
Nuclear power plant's penetration piece end socket and its penetration piece structure effectively slow down influence of the medium temperature acute variation to wall temperature change,
And then the heat fatigue effect of wall is effectively reduced.
To achieve the goals above, the present invention provides a kind of nuclear power plant's penetration piece end sockets, comprising: end socket main body, it is described
End socket main body is provided with through-hole, wherein the penetration piece end socket is additionally provided with inner open formula cavity, and the inner open formula is empty
Chamber is arranged in end socket main body, and is connected to the through-hole of end socket main body setting.
As a kind of improvement of nuclear power plant's penetration piece end socket of the present invention, the inner open formula cavity loop is around the through-hole
Surrounding setting.
As a kind of improvement of nuclear power plant's penetration piece end socket of the present invention, it is provided in the inner open formula cavity and slows down heat
Stir and make muddy device.
As a kind of improvement of nuclear power plant's penetration piece end socket of the present invention, described to slow down heat to stir and make muddy device include restriction orifice.
As a kind of improvement of nuclear power plant's penetration piece end socket of the present invention, the inner open formula cavity edge and the through-hole
Connecting portion is streamlined structure.
As a kind of improvement of nuclear power plant's penetration piece end socket of the present invention, the streamlined structure is arc structure.
As a kind of improvement of nuclear power plant's penetration piece end socket of the present invention, sub- cavity, institute are additionally provided in the end socket main body
It states sub- cavity to be connected to the inside of the inner open formula cavity, and keeps closed with external environment.
As a kind of improvement of nuclear power plant's penetration piece end socket of the present invention, outer loop is additionally provided with inside the end socket main body
Water cavity and circulation water entrance, the outer loop water cavity are located at the outside of the inner open formula cavity, outer loop
Water cavity is connected to circulation water entrance.
As a kind of improvement of nuclear power plant's penetration piece end socket of the present invention, the circulation water entrance of the outer loop water cavity
Position is connected with recirculated water disengaging ozzle.
As a kind of improvement of nuclear power plant's penetration piece end socket of the present invention, the recirculated water disengaging ozzle material and the end socket
Ontology is made of stainless steel or carbon steel material.
As a kind of improvement of nuclear power plant's penetration piece end socket of the present invention, the outer loop water cavity is streamlined cavity.
As a kind of improvement of nuclear power plant's penetration piece end socket of the present invention, the two sides of the through-hole and the end socket main body it is outer
Week is provided with ozzle.
To achieve the goals above, the present invention also provides a kind of nuclear power plant's penetration piece structures, comprising:
Sleeve is fixed in concrete walls body, and both ends are located at the outside of concrete wall, and inner tube is arranged inside
Road；
End socket is provided with through-hole, and periphery and one end of sleeve are welded and fixed, and the side at through-hole position and internal pipeline weld
Connection, the other side are welded to connect with the external pipe being located at outside concrete wall, and internal pipeline, end socket and external pipe are fixed
It is interconnected after connection；
Wherein, the end socket is nuclear power plant's penetration piece end socket described above.
Sleeve and inner tube as a kind of improvement of nuclear power plant's penetration piece structure of the present invention, on the inside of the concrete wall
Another end socket, the end socket of concrete wall two sides and the sleeve and the internal pipeline outer wall shape are additionally provided between road
At a cavity, it is provided with disengaging ozzle on the sleeve, non-corrosive fluids medium has been filled in cavity.
Compared with the existing technology, nuclear power plant's penetration piece end socket of the present invention and its penetration piece structure are imitated with following Advantageous
Fruit:
1) compact-sized, symmetrical, it is easily installed, it is easy to maintain；
2) it by setting inner open formula cavity, changes fluid media (medium) and conventional design penetration piece end socket inner wall is single
Heat transfer type increases the convective heat transfer boundary together between new and old fluid media (medium), by heat transfer mode by simple pair
The serial procedures that heat is optimized for cold fluid and hot fluid convective heat transfer -- heat is stired and make muddy -- fluid Yu penetration piece inner wall convective heat transfer are spread, are buffered
Since nuclear power plant's operating condition changes possible thermal shock or cold shock effect, penetration piece inner wall and penetration piece are slowed down
The rate temperature change of sleeve near zone wall reduces the heat ageing effect of fatigue stress and walls concrete；
3) by setting outer loop water cavity, be equal to penetration piece end socket and penetration piece sleeve near zone wall it
Between heat transfer path on increase and be provided with heat transfer barrier together, heat transfer mode is optimized for hot biography by simple heat transmitting
Pass -- thermal convection -- heat is stired and make muddy -- thermal convection -- heat transmitting, buffered due to nuclear power plant's operating condition variation it is possible heat punching
It hits or cold shock effect, slows down the rate temperature change of penetration piece inner wall and penetration piece sleeve near zone wall, reduce
The heat ageing effect of fatigue stress and walls concrete；
4) by setting outer loop water cavity, the circulation export of penetration piece end socket heat is realized, can effectively reduce and pass through
The temperature change amplitude for wearing part end socket and penetration piece sleeve near zone wall, reduces the heat of fatigue stress and walls concrete
Aging effect；
5) by the way that ozzle is arranged in external recirculated water cavity, the charging and discharging function of cooling circulating water is realized, ozzle both can be real
Row and sealing are now regularly manually filled, and can connect pipeline and lasting automatic circulating system is set, convenient for combining entire nuclear power
Situations such as arrangement space of factory, transient state load, mechanical equipment, integrated treatment design scheme was, it can be achieved that property is strong.
Detailed description of the invention
With reference to the accompanying drawings and detailed description, nuclear power plant's penetration piece end socket of the present invention and its penetration piece structure are carried out
It is described in detail, in which:
Fig. 1 is the structural schematic diagram of nuclear power plant's penetration piece end socket of the present invention.
Fig. 2 is the elevation of nuclear power plant's penetration piece end socket of the present invention.
Fig. 3 is the structural schematic diagram of nuclear power plant's penetration piece structure of the present invention.Attached drawing mark:
10- end socket main body；12- through-hole；14- inner open formula cavity；16- ozzle；18- welding groove；20- ozzle；22-
Welding groove；24- outer loop water cavity；26- recirculated water passes in and out ozzle；30- sleeve；32- concrete wall；34- inner tube
Road；36- end socket；38- external pipe；40- floor.
Specific embodiment
It is below in conjunction with attached drawing and specifically real in order to be more clear the purpose of the present invention, technical solution and its technical effect
Mode is applied, the present invention will be described in further detail.It should be understood that specific embodiment described in this specification is only
Merely to explaining the present invention, it is not intended to limit the present invention.
It please refers to shown in Fig. 1 and Fig. 2, nuclear power plant's penetration piece end socket of the present invention includes: end socket main body 10, and end socket main body 10 is set
It is equipped with through-hole 12, wherein penetration piece end socket is additionally provided with inner open formula cavity 14, and inner open formula cavity 14 is arranged in end socket
In ontology 10, and the through-hole 12 being arranged with end socket main body 10 is connected to.
Refering to Figure 1, end socket main body 10 is axially symmetric structure, middle part is provided with through-hole 12, and 12 position of through-hole
Two sides are formed with ozzle 16, and welding groove 18 is provided at ozzle 16, convenient for being welded to connect with pipeline.
The periphery of end socket main body 10 is circular ring structure, and side is formed with ozzle 20, welding groove 22 is provided at ozzle 20,
It is convenient for and sleeve connection.
The inside of end socket main body 10 is arranged in inner open formula cavity 14, and setting of rounding, at the same with through-hole 12
Surrounding connection.Preferably, the medium position of 10 thickness of end socket main body is arranged in inner open formula cavity 14, and specification is as needed
It is configured.
Further, the edge of inner open formula cavity 14 is set as streamlined structure, preferably arc structure, inner open
Formula cavity 14 and through-hole junction are fillet, to prevent stress from concentrating.
Further, inner open formula cavity 14 is set as outer narrow inner width form, the i.e. width with 12 communicating position of through-hole
It is relatively narrow, the wider width of the position far from through-hole 12, to slow down new and old medium mixing velocity.
Inner open formula cavity 14 can be good at guaranteeing medium airtightness and pass through for accommodating pipeline medium, cavity design
The intensity of part ontology 10 is worn, while providing thermal convection and heat when upstream medium temperature state generates acute variation for new and old medium
The space stired and make muddy.After upstream fluid medium temperature acute variation, when new fluid media (medium) is flowed through at penetration piece end socket, first
Fluid media (medium) before having not been changed with empty cavity temperature is carried out heat by way of thermal convection and exchanged, with heat stir and make muddy into
Row, penetration piece end socket inner wall temperature slowly change, effectively reduce fluid media (medium) cold shock or thermal shock in pipeline of nuclear power plant and make
At penetration piece end socket and sleeve near zone wall rate temperature change.
Inner open formula cavity 14 has perpendicular to the heat-transfer path direction between penetration piece end socket and penetration piece sleeve
Biggish cross-sectional area avoids more heat from being transferred to concrete wall by the fast speed heat of end socket main body 10, gives full play to sky
Hot buffer function of the intracavitary medium for storing on heat-transfer path.
Further, sub- cavity (not shown go out) is additionally provided in end socket main body 10, sub- cavity is along inner open formula cavity
14 peripheral limits are provided with multiple, and multiple is 2,3,4,5,6 or more, and every sub- cavity is interior with inner open formula cavity 14
Portion's connection, while keeping closed with external environment.By the way that sub- cavity is arranged, for accommodating more buffer mediums, and in system
When medium temperature generates acute variation, slow down the process of new and old pipeline medium heat exchange, reduces penetration piece end socket inner wall temperature and become
Change rate.
Further, it is additionally provided in inner open formula cavity 14 and slows down heat and stir and make muddy device (not shown go out), such as in inside
Setting restriction orifice etc., controls the efficiency of the convective heat transfer of new and old fluid media (medium) in open cavity 14, slow down cold shock or
The influence of thermal shock.
In order to further slow down rate of heat transfer and export heat, outer loop water cavity is additionally provided in end socket main body 10
24, the outside of the internally positioned open cavity 14 of outer loop water cavity 24.Preferably, outer loop water cavity 24 is around inside
Open cavity 14 is arranged, and circulation water entrance, circulation water entrance difference is arranged in the upper and lower part of end socket main body 10
It is connected to outer loop water cavity 24, outer loop water cavity 24 is used for the heat derives of penetration piece end socket, and outer loop water is empty
The boundary design of chamber 24 should not interfere the pressure boundary performance of penetration piece interior fluid mediums, not influence the closed of pipeline medium
Property.Meanwhile outer loop water cavity 24 should be on the basis of guaranteeing penetration piece head design intensity as close as possible to inner open formula
Cavity 14, to improve heat exchange efficiency.On the basis of ensureing penetration piece design strength, outer loop water cavity 24 should perpendicular to
Heat-transfer path direction between penetration piece end socket and penetration piece sleeve has biggish cross-sectional area, to reach the effect of heat transfer barrier
Fruit.Spacing between outer loop water cavity 24 and inner open formula cavity 14 is adjusted as needed.
Further, outer loop water cavity 24 is streamlined cavity, the internal non-corrosive fluids for being full of high heat capacity
(such as low temperature demineralized water), non-corrosive fluids can regularly replace or by way of driving equipment is arranged to circulate, to inhale
The heat that should be transferred to wall by penetration piece end socket is received, fluid media (medium) cold shock or thermal shock in pipeline of nuclear power plant is reduced and causes
Penetration piece end socket and sleeve near zone wall temperature change amplitude.
For the ease of exporting heat, the recirculated water import and export being connected to outer loop water cavity 24 is provided with recirculated water
Ozzle 26 is passed in and out, recirculated water disengaging ozzle 26 can periodically fill row's high heat capacity non-corrosive fluids medium, such as low temperature demineralized water, remaining
Time sealing, may also set up and connect lasting fluid circulating system, persistently export end socket heat.
Recirculated water disengaging 26 material of ozzle is identical as the material of end socket main body 10, generally uses stainless steel or carbon steel material
Material, such as P280GH, Z2CN1810 material etc..
The present invention also provides a kind of nuclear power plant's penetration piece structures, comprising:
Sleeve 30 is fixed in concrete wall 32, and both ends are located at the outside of concrete wall 32, is arranged inside
Internal pipeline 34；
End socket 36 is provided with through-hole 12, and peripheral and sleeve 30 one end is welded and fixed, the side and inside at 12 position of through-hole
Pipeline 34 is welded to connect, and the other side is welded to connect with the external pipe 38 being located at outside concrete wall 32, internal pipeline 34, envelope
First 36 be fixedly connected with external pipe 38 after be interconnected；
Wherein, end socket 36 is above-mentioned nuclear power plant's penetration piece end socket.
It, can also be in the sleeve of 32 inside of concrete wall in order to improve the circulating heat conduction ability of nuclear power plant's penetration piece structure
Setting another end socket (not shown go out) is welded between 30 and internal pipeline 34 again, end socket set in addition can be with 36 phase of end socket
Together, end socket commonly used in the prior art can also be used, the end socket and sleeve 30 and 34 outer wall of internal pipeline of wall two sides form one
A cavity, and the setting disengaging ozzle (not shown go out) on sleeve 30 are filled with the non-aggressive cryogen of high heat capacity in cavity
Medium (such as low temperature demineralized water) carries out circulating heat conduction.
In order to further increase structural strength, the outer wall of sleeve 30, which also welds, is provided with floor 40, and floor 40 pours fixation
In concrete wall 32.Preferably, floor 40 is provided with multiple, is spaced uniform welding on the outer wall of sleeve 30.
Compared with the existing technology, nuclear power plant's penetration piece end socket of the present invention and its penetration piece structure are imitated with following Advantageous
Fruit:
1) compact-sized, symmetrical, be easily installed with it is easy to maintain；
2) it by setting inner open formula cavity, changes fluid media (medium) and conventional design penetration piece end socket inner wall is single
Heat transfer type increases the convective heat transfer boundary together between new and old fluid media (medium), by heat transfer mode by simple pair
The serial procedures that heat is optimized for cold fluid and hot fluid convective heat transfer -- heat is stired and make muddy -- fluid Yu penetration piece inner wall convective heat transfer are spread, are buffered
Since nuclear power plant's operating condition changes possible thermal shock or cold shock effect, penetration piece inner wall and penetration piece are slowed down
The rate temperature change of sleeve near zone wall reduces the heat ageing effect of fatigue stress and walls concrete；
3) by setting outer loop water cavity, be equal to penetration piece end socket and penetration piece sleeve near zone wall it
Between heat transfer path on increase and be provided with heat transfer barrier together, heat transfer mode is optimized for hot biography by simple heat transmitting
Pass -- thermal convection -- heat is stired and make muddy -- thermal convection -- heat transmitting, buffered due to nuclear power plant's operating condition variation it is possible heat punching
It hits or cold shock effect, slows down the rate temperature change of penetration piece inner wall and penetration piece sleeve near zone wall, reduce
The heat ageing effect of fatigue stress and walls concrete；
4) by setting outer loop water cavity, the circulation export of penetration piece end socket heat is realized, can effectively reduce and pass through
The temperature change amplitude for wearing part end socket and penetration piece sleeve near zone wall, reduces the heat of fatigue stress and walls concrete
Aging effect；
5) by the way that ozzle is arranged in external recirculated water cavity, the charging and discharging function of cooling circulating water is realized, ozzle both can be real
Row and sealing are now regularly manually filled, and can connect pipeline and lasting automatic circulating system is set, convenient for combining entire nuclear power
Situations such as arrangement space of factory, transient state load, mechanical equipment, integrated treatment design scheme was, it can be achieved that property is strong.
According to above-mentioned principle, the present invention can also be made appropriate changes and modifications to the above embodiments.Therefore, this hair
It is bright to be not limited to specific embodiment disclosed and described above, some modifications and changes of the invention should also be as to fall into this
In the scope of protection of the claims of invention.In addition, although being used some specific terms in this specification, these terms
Merely for convenience of description, it does not limit the present invention in any way.
Claims (10)
1. a kind of nuclear power plant's penetration piece end socket, comprising: end socket main body, the end socket main body are provided with through-hole, which is characterized in that institute
State penetration piece end socket and be additionally provided with inner open formula cavity, the inner open formula cavity is arranged in end socket main body, and with envelope
The through-hole connection of head ontology setting.
2. nuclear power plant's penetration piece end socket according to claim 1, which is characterized in that the inner open formula cavity loop is around institute
State the surrounding setting of through-hole.
3. nuclear power plant's penetration piece end socket according to claim 2, which is characterized in that setting in the inner open formula cavity
Have and slows down heat and stir and make muddy device.
4. nuclear power plant's penetration piece end socket according to claim 2, which is characterized in that the inner open formula cavity edge with
The through-hole connecting portion is streamlined structure.
5. nuclear power plant's penetration piece end socket according to claim 1, which is characterized in that be additionally provided with son in the end socket main body
Cavity, the sub- cavity are connected to the inside of the inner open formula cavity, and keep closed with external environment.
6. nuclear power plant's penetration piece end socket according to claim 1, which is characterized in that be additionally provided with inside the end socket main body
Outer loop water cavity and circulation water entrance, the outer loop water cavity are located at the outside of the inner open formula cavity,
Outer loop water cavity is connected to circulation water entrance.
7. nuclear power plant's penetration piece end socket according to claim 6, which is characterized in that the circulation of the outer loop water cavity
Water entrance position is connected with recirculated water disengaging ozzle.
8. nuclear power plant's penetration piece end socket according to claim 7, which is characterized in that the outer loop water cavity is streamline
Type cavity.
9. nuclear power plant's penetration piece end socket according to claim 1, which is characterized in that the two sides of the through-hole and the end socket
The periphery of ontology is provided with ozzle.
10. a kind of nuclear power plant's penetration piece structure, comprising:
Sleeve is fixed in concrete walls body, and both ends are located at the outside of concrete wall, and internal pipeline is arranged inside；
End socket is provided with through-hole, and periphery and one end of sleeve are welded and fixed, and the side at through-hole position and internal pipeline welding connect
It connects, the other side is welded to connect with the external pipe being located at outside concrete wall, and internal pipeline, end socket and external pipe are fixed to be connected
It is interconnected after connecing；
It is characterized in that, the end socket is nuclear power plant's penetration piece end socket according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910118911.7A CN109737244B (en) | 2019-02-15 | 2019-02-15 | Nuclear power plant penetrating piece seal head and penetrating piece structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910118911.7A CN109737244B (en) | 2019-02-15 | 2019-02-15 | Nuclear power plant penetrating piece seal head and penetrating piece structure thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109737244A true CN109737244A (en) | 2019-05-10 |
| CN109737244B CN109737244B (en) | 2021-08-31 |
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| CN201910118911.7A Active CN109737244B (en) | 2019-02-15 | 2019-02-15 | Nuclear power plant penetrating piece seal head and penetrating piece structure thereof |
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