CN206530783U - The sealing structure of nuclear reactor and its double-layer sleeve structure and return - Google Patents
The sealing structure of nuclear reactor and its double-layer sleeve structure and return Download PDFInfo
- Publication number
- CN206530783U CN206530783U CN201720085229.9U CN201720085229U CN206530783U CN 206530783 U CN206530783 U CN 206530783U CN 201720085229 U CN201720085229 U CN 201720085229U CN 206530783 U CN206530783 U CN 206530783U
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- sealing
- pipeline section
- seal head
- nuclear reactor
- face
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Abstract
The utility model is related to the sealing structure of nuclear reactor and its double-layer sleeve structure and return, and pipeline includes the first pipeline section, the second pipeline section.Sealing structure is included in the first seal head that the first pipeline section one end relative with the second pipeline section is set, and stretches out the second seal head set to the first pipeline section on the second pipeline section.The first seal head end face relative with the second pipeline section is circumferentially arranged with the first sealing；Second seal head include first end seal be fixed on the second pipeline section, can the flexible elastic preload piece of axial elasticity, and be arranged on the second end of elastic preload piece, threeth sealing relative with the first sealing.Elastic preload piece provides axial pre tightening force and compresses to form end face seal or linear sealing to the first sealing by the 3rd sealing.Sealing structure of the present utility model both ensure that sealing property, be easy to the dismounting of the first pipeline section and the second pipeline section again, improve dismounting and overhaul efficiency.
Description
Technical field
The utility model is related to nuclear power field, more specifically to a kind of nuclear reactor and its double-layer sleeve structure and
The sealing structure of return.
Background technology
Nuclear power is applied as clean energy resource by extensive build.In traditional nuclear power station, such as compressed water reactor nuclear power
Stand, generally include the main equipments such as pressure vessel, steam generator, main pump, voltage-stablizer.Conventionally, as nuclear power station
Build place sufficient, larger, be generally attached by long pipeline between pressure vessel, steam generator, main pump,
Equipment import and export is both needed to set connection ozzle.The spacing of whole equipment arrangement is larger, and pipeline is longer, so equipment occupation space
It is larger.
However, the increase of the dissipation requirements with electricity consumption, the construction of large nuclear power station is gradually limited, slowly the need for
More miniaturization nuclear power stations.In miniaturization nuclear power station, due to the limitation of miniaturization, if still using master between each main equipment
Pipeline, the structure of connection ozzle are attached, and certainly will be caused oversized, it is impossible to applicable requirements.
Utility model content
The technical problems to be solved in the utility model is that there is provided a kind of improved nuclear reactor and its double-layer sleeve structure
With the sealing structure of return.
The utility model solves the technical scheme that its technical problem used：Construction is a kind of to be used for nuclear reactor loop pipe
The sealing structure in road, the pipeline includes the first pipeline section, the second pipeline section,；
The sealing structure is included in the first sealing that first pipeline section one end relative with second pipeline section is set
Head, and the second seal head set is stretched out to first pipeline section on second pipeline section；
First seal head end face relative with second pipeline section is circumferentially arranged with the first sealing；
Second seal head include first end seal be fixed on second pipeline section, can the flexible bullet of axial elasticity
Property preload piece, and it is arranged on the second end of the elastic preload piece, threeth sealing relative with first sealing；
The elastic preload piece provides axial pre tightening force and compresses the 3rd sealing to first sealing to be formed
End face seal or linear sealing.
Preferably, first sealing is included in the concave inward structure that the end face of first seal head is set along border,
3rd sealing includes the bulge-structure set along border and grafting corresponding with the concave inward structure coordinates, the indent
Structure is corresponding with the bulge-structure profile；Or
First sealing is included in the bulge-structure that the end face of first seal head is set along border, the described 3rd
Sealing includes the concave inward structure set along border and grafting corresponding with the bulge-structure coordinates, the bulge-structure and institute
State concave inward structure profile correspondence；Or,
First sealing is included in the concaveconvex structure that the end face of first seal head is set along border, the described 3rd
Sealing includes the convex-concave structure set along border and grafting corresponding with the concaveconvex structure coordinates, the concaveconvex structure and institute
State convex-concave structure profile correspondence.
Preferably, first sealing includes inclined primary sealing area to axial, and the 3rd sealing includes
Inclined secondary sealing area to axial, the primary sealing area, secondary sealing area are set along border, and position correspondence, with
Abut sealing.
Preferably, first sealing is included in the seal groove that the end face of first seal head is set along border, institute
The section for stating seal groove is V-arrangement；
3rd sealing is the sealing ring that is set along border, the sealing ring include setting along border and with it is described close
The projection of sealing groove corresponding matching, the raised section profile is taper corresponding with the seal groove profile or sphere.
Preferably, the elastic preload piece is tubulose, and the section profile of side wall is one kind in corrugated, C-shaped, U-shaped
Or combination.
Preferably, first pipeline section, the second pipeline section end face it is relative, and first pipeline section, the second pipeline section two are relative
End face between leave gap.
Preferably, it is respectively equipped with the positioning step being mutually located on the relative end face of first pipeline section, the second pipeline section two.
Preferably, second seal head also includes the 4th sealing being arranged on second pipeline section, the described 4th
Sealing is set along border, and the 3rd sealing, the 4th sealing are located at the axial two ends of the elastic preload piece respectively；
3rd sealing is provided with to the extended sleeve of the first end of the elastic preload piece, and the sleeve is stretched
The border of the one end gone out and the border sealing of the 4th sealing coordinate.
Preferably, first seal head, the second seal head are located at first pipeline section, the outside of the second pipeline section respectively
Face, the elastic preload piece is located on the inside of the sleeve, and the outer ring of the 4th sealing coordinates with the internal face of the sleeve；
Or,
First seal head, the second seal head are located at first pipeline section, the medial surface of the second pipeline section, the bullet respectively
Property preload piece be located on the outside of the sleeve, the outside wall surface of the inner ring of the 4th sealing and the sleeve coordinates.
The utility model also constructs a kind of double-layer sleeve structure for nuclear reactor, and the double-layer sleeve structure includes interior
The outer tube outside said inner tube is managed and is set in, said inner tube includes the first pipeline section, the second pipeline section plugged, first pipe
Described pipeline sealing structure is used between section, the second pipeline section.
The utility model also constructs a kind of nuclear reactor, including at least two chambers, in addition to is connected to described two chambers
Formed in described double-layer sleeve structure between room, said inner tube in first passage, said inner tube outside wall surface and the outer tube
Second channel is formed between wall；The first passage mutually completely cuts off with the second channel.
Implement the sealing structure of nuclear reactor of the present utility model and its double-layer sleeve structure and return, with following
Beneficial effect：Sealing structure of the present utility model is after the first pipeline section and the second pipeline section are inserted to specified location, by elastic pre-
The pretightning force that tight part self-deformation is provided, which is realized the first sealing, the 3rd sealing to offset pressing is tight, forms end face seal, to the
One pipeline section, the second pipeline section are fixed, you can complete the connection of the first pipeline section and the second pipeline section, easy for installation, by the first pipe during dismounting
Section is divided right and left with the second pipeline section, the first seal head, the separation of the second seal head is carried out coherence check and maintenance work, both
Sealing property is ensure that, disassembly efficiency is improved again.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the cross-sectional view of the double-layer sleeve structure in the utility model embodiment；
Fig. 2 is the enlarged diagram of the partial view C in Fig. 1；
Fig. 3 is the connection between the main pump, steam generator, pressure vessel of the nuclear reactor in the utility model embodiment
There is structural representation during double-layer sleeve structure.
Embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, accompanying drawing is now compareed detailed
Illustrate embodiment of the present utility model.
As shown in figure 1, the sealing structure for nuclear reactor return in one preferred embodiment of the utility model
Pipeline include the first pipeline section 411, the second pipeline section 412, the first pipeline section 411, the second pipeline section 412 docking position using pipeline it is close
Seal structure ensures sealing and the convenience installed.
Further, sealing structure realizes sealing using following structure, and sealing structure is included in the first pipeline section 411 and second
The first seal head 413 that the relative one end of pipeline section 412 is set, and to the stretching setting of the first pipeline section 411 on the second pipeline section 412
The second seal head 414.First seal head 413 end face relative with the second pipeline section 412 is circumferentially arranged with the first sealing 4131.
Second seal head 414 include first end seal be fixed on the second pipeline section 412, can the flexible elastic preload piece of axial elasticity
4141, and it is arranged on the second end of elastic preload piece 4141, threeth sealing 4142 relative with the first sealing 4131.The
One sealing 4131, the 3rd sealing 4142 lean, and elastic preload piece 4141 provides axial pre tightening force by the 3rd sealing
4142 compress to form end face seal or linear sealing to the first sealing 4131.
After the first pipeline section 411 and the second pipeline section 412 insert specified location, pass through the elastic self-deformation of preload piece 4141
The pretightning force of offer realizes that the first sealing 4131, the 3rd sealing 4142 offset and is pressed against tight formation end face seal.Further
First pipeline section 411 is fixed with the second pipeline section 412, you can complete the connection of the first pipeline section 411 and the second pipeline section 412, the company of installation
Connect very convenient.Only need to divide right and left the first pipeline section 411 of connection and the second pipeline section 412 when dismounting, make first close
The first pipeline section 411 and the second pipeline section 412 are extracted out after end socket 413, the separation of the second seal head 414, you can carry out coherence check and dimension
Repair work.
First sealing 4131 is included in the seal groove 4132 that the end face of the first seal head 413 is set along border, seal groove
4132 section is V-arrangement.Further, the 3rd sealing 4142 is the sealing ring 4143 set along border, and sealing ring 4143 is wrapped
Include set along border and with the projection of the corresponding matching of seal groove 4132, raised section profile is and the profile pair of seal groove 4132
The taper answered or sphere.In the first pipeline section 411, the assembling of the second pipeline section 412, projection is inserted into seal groove 4132, seal groove
4132 two faces are sealed with raised face against realization.
Further, in the aforementioned embodiment, v-seal groove 4132 is the first sealing 4131 in the first seal head 413
The concave inward structure that is set along border of end face, the tapered projection of section be the 3rd sealing 4142 set along border and with it is interior
The bulge-structure that recessed structure correspondence grafting coordinates, concave inward structure is corresponding with bulge-structure profile.Certainly, concave inward structure and raised knot
Structure is alternatively other shapes.
In other embodiments, it can be only included in two sealing surfaces of the v-seal groove 4132 of the first sealing 4131
It can also be only included in one inclined primary sealing area 4133 to axial, raised two sealing surface of the 3rd sealing 4142
One inclined secondary sealing area 4144 to axial, primary sealing area 4133, secondary sealing area 4144 are set along border, and
Position correspondence, sealing is realized to abut.
Or the first sealing 4131 is included in the end face of the first seal head 413 further, in other embodiments,
The bulge-structure set along border, the 3rd sealing 4142 include set along border and grafting corresponding with bulge-structure cooperation
Concave inward structure, bulge-structure is corresponding with concave inward structure profile, is offseted after grafting by sealing surface and realizes sealing.
In other embodiments, or the first sealing 4131 is included in the end face of the first seal head 413 along week certainly,
The concaveconvex structure set is enclosed, the 3rd sealing 4142 includes the convex-concave set along border and grafting corresponding with concaveconvex structure coordinates
Structure, concaveconvex structure is corresponding with convex-concave structure profile, is offseted after grafting by sealing surface and realizes sealing.It can guarantee that sealing effectiveness
Under the premise of, the first sealing 4131, the profile of the corresponding sealing surface of the 3rd sealing 4142 can not be limited.
Elastic preload piece 4141 is tubulose, and side wall section profile to be corrugated, corrugated tubular structure both can be with
Sealing is circumferentially being realized, can also be during the first sealing 4131, the 3rd sealing 4142 offset pressing tightly, elastic pretension
Part 4141 is pressurized keeps the first sealing 4131, the 3rd sealing 4142 to offset compression there is provided axial elastic force, it is ensured that sealing
Energy.In other embodiments, the section profile of the elastic preload piece 4141 of tubulose can be C-shaped, U-shaped, or for corrugated, C-shaped,
Combination in U-shaped various shapes, so that axial elastic force can be provided.
In certain embodiments, the second seal head 414 also includes the 4th sealing being arranged on the second pipeline section 412
4145, the 4th sealing 4145 is set along border, and the 3rd sealing 4142, the 4th sealing 4145 are located at elastic pretension respectively
The axial two ends of part 4141.Preferably, the end of elastic preload piece 4141 is welded on the 4th sealing 4145, the 4th sealing
4145 are welded on the second pipeline section 412.
Further, the 3rd sealing 4142 is provided with to the extended sleeve of the first end of elastic preload piece 4141
4146, the border of one end that sleeve 4146 stretches out coordinates with the border sealing of the 4th sealing 4145.Sleeve 4146 can be to bullet
Property preload piece 4141 is protected, it is to avoid erosion and Flow vibration of the fluid media (medium) to elastic preload piece 4141.
Preferably, the first seal head 413, the second seal head 414 be located at respectively the first pipeline section 411, the second pipeline section 412 it is outer
Sideways, elastic preload piece 4141 is located at the inner side of sleeve 4146, and the outer ring of the 4th sealing 4145 and the internal face of sleeve 4146 are matched somebody with somebody
Close, the structure is installed from the first pipeline section 411, the second pipeline section 412, easy for installation.
In other embodiments, or the first seal head 413, the second seal head 414 respectively be located at the first pipeline section 411,
The medial surface of second pipeline section 412, elastic preload piece 4141 is located at the outside of sleeve 4146, the inner ring and sleeve of the 4th sealing 4145
4146 outside wall surface coordinates.
In certain embodiments, the first pipeline section 411, the second pipeline section 412 end face it is relative, and the first pipeline section 411, second manages
Gap is left between 412 liang of relative end faces of section.
Inner tube under pipeline certain temperature can be met extra axial expansion, the big I in gap are produced relative to outer tube 42
Arbitrarily adjusted, assembling will not be influenceed according to application scenario, remain to keep sealing effectiveness.The sealing structure of pipeline can apply to
The sealing of single pipeline, can also be applied to double-layer sleeve structure.
Preferably, the first pipeline section 411, be respectively equipped with the positioning table being mutually located on 412 liang of relative end faces of the second pipeline section
Rank, can be mutually located when mounted.
The material of the utility model pipeline be corrosion resistant metal, such as stainless steel or nickel-base alloy, this kind of material is in heap
Using there is more mature experience, Applicable temperature pressure limit is wider, and with preferable Flouride-resistani acid phesphatase and corrosion resistance, Neng Gouguang
In general double-layer sleeve structure similar suitable for one loop of nuclear power station, secondary circuit and accessory system.
In conjunction with shown in Fig. 1, Fig. 2, double-layer sleeve structure 4 includes inner tube 41 and the outer tube 42 being set in outside inner tube 41, interior
Formed in pipe 41 and second channel B formed between first passage A, the outside wall surface of inner tube 41 and the internal face of outer tube 42, first passage A with it is described
Second channel B mutually completely cuts off, so that cooling agent is to the circulation of different directions.
First pipeline section 411 of pipeline, the second pipeline section 412 composition inner tube 41, the first pipeline section 411, second in the utility model
The general material of pipeline section 412 is corrosion resistant metal material, such as stainless steel or nickel-base alloy, respectively from the corresponding chamber in the two ends of outer tube 42
Room is installed and is inserted into outer tube 42, and connection forms first passage A after docking, is placed among outer tube 42.
First passage A, second channel B keep apart, and being filled with primary Ioops height in first passage A, second channel B runners puts
Penetrating property medium.There can be certain pressure difference between first passage A, second channel B, because elastic preload piece 4141 provides pretightning force
The sealing surface between the first sealing 4131, the 3rd sealing 4142 is set to realize sealing, two passages are separate will not be mutual
Leakage, with certain bearing capacity.
Gap is left between first pipeline section 411,412 liang of relative end faces of the second pipeline section, when the hot line of the material of outer tube 42 is swollen
Swollen rate than the first pipeline section 411, the second pipeline section 412 hour, after the first pipeline section 411, the second pipeline section 412 are installed, end face
There is an installation gap in joint, can meeting inner tube under pipeline certain temperature, to produce extra axial direction relative to outer tube 42 swollen
Swollen, the big I in gap is arbitrarily adjusted according to application scenario.
Similarly, when the material of outer tube 42 thermal linear expansion rate than the first pipeline section 411, the second pipeline section 412 it is big when, can also be
Compressed completely after installing, the gap allowed at end joint is zero.At a certain temperature, the first pipeline section 411, the second pipeline section
Gap can be produced between 412, inner tube is met and extra axial shrinkage is produced relative to outer tube 42.Eliminated in the case of both the above
Piping thermal prestressed, effectively eliminates the problem of end adpting flange stress is excessive, it is ensured that sealing structure feature.
When the first pipeline section 411, the second pipeline section 412 are extracted from outer tube 42, direct out extraction and the first pipe can be achieved
Section the 411, second pipeline section 412 separation, it is ensured that the dismounting between the first pipeline section 411, the second pipeline section 412 is convenient, be easy to check and
The work such as maintenance.The utility model Applicable temperature pressure limit is wider, and with preferable Flouride-resistani acid phesphatase and corrosion resistance, Neng Gouguang
In general double-layer sleeve structure similar suitable for one loop of nuclear power station, secondary circuit and accessory system.
As shown in figure 3, nuclear reactor in one preferred embodiment of the utility model include main pump 1, steam generator 2,
Double-layer sleeve structure 4 is connected between the chamber of pressure vessel 3, steam generator 2 and pressure vessel 3, main pump 1 can be by double
Layer sleeve structure 4 is connected with steam generator 2, can also be connected, be carried in main pump 1 with pressure vessel 3 by double-layer sleeve structure 4
During for cooling agent circulation power, corresponding circulating reflux is formed between each cavity in pressure vessel 3, steam generator 2, it is double
Layer sleeve structure 4 can shorten the connecting length between main pump 1, steam generator 2, pressure vessel 3.
It is to be appreciated that above-mentioned each technical characteristic can be used in any combination and unrestricted.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical fields, are similarly included in scope of patent protection of the present utility model.
Claims (11)
1. a kind of sealing structure for nuclear reactor return, it is characterised in that the pipeline includes the first pipeline section
（411）, the second pipeline section（412）；
The sealing structure is included in first pipeline section（411）With second pipeline section（412）Relative one end set the
One seal head（413）, and in second pipeline section（412）On to first pipeline section（411）Stretch out the second sealing set
Head（414）；
First seal head（413）With second pipeline section（412）Relative end face is circumferentially arranged with the first sealing
（4131）；
Second seal head（414）Second pipeline section is fixed on including first end sealing（412）It is upper, can axial elasticity stretch
Elastic preload piece（4141）, and it is arranged on the elastic preload piece（4141）The second end, with first sealing
（4131）The 3rd relative sealing（4142）；
The elastic preload piece（4141）Axial pre tightening force is provided by the 3rd sealing（4142）To first sealing
（4131）Compress to form end face seal or linear sealing.
2. the sealing structure according to claim 1 for nuclear reactor return, it is characterised in that described first is close
Envelope portion（4131）It is included in first seal head（413）The concave inward structure that is set along border of end face, the 3rd sealing
（4142）Including the bulge-structure set along border and grafting corresponding with the concave inward structure coordinates, the concave inward structure and institute
State bulge-structure profile correspondence；Or
First sealing（4131）It is included in first seal head（413）The bulge-structure that is set along border of end face,
3rd sealing（4142）Including the concave inward structure set along border and grafting corresponding with the bulge-structure coordinates, institute
State bulge-structure corresponding with the concave inward structure profile；Or,
First sealing（4131）It is included in first seal head（413）The concaveconvex structure that is set along border of end face,
3rd sealing（4142）Including the convex-concave structure set along border and grafting corresponding with the concaveconvex structure coordinates, institute
State concaveconvex structure corresponding with the convex-concave structure profile.
3. the sealing structure according to claim 1 for nuclear reactor return, it is characterised in that described first is close
Envelope portion（4131）Including inclined primary sealing area to axial（4133）, the 3rd sealing（4142）Including to axial
Inclined secondary sealing area（4144）, the primary sealing area（4133）, secondary sealing area（4144）Set along border, and position
Correspondence is put, to abut sealing.
4. the sealing structure according to claim 3 for nuclear reactor return, it is characterised in that described first is close
Envelope portion（4131）It is included in first seal head（413）The seal groove that is set along border of end face（4132）, the seal groove
（4132）Section be V-arrangement；
3rd sealing（4142）For the sealing ring set along border（4143）, the sealing ring（4143）Including along border
Set and with the seal groove（4132）The projection of corresponding matching, the raised section profile be and the seal groove（4132）
The corresponding taper of profile or sphere.
5. the sealing structure for nuclear reactor return according to any one of Claims 1-4, it is characterised in that
The elastic preload piece（4141）For tubulose, and the section profile of side wall is one kind or combination in corrugated, C-shaped, U-shaped.
6. the sealing structure for nuclear reactor return according to any one of Claims 1-4, it is characterised in that
First pipeline section（411）, the second pipeline section（412）End face it is relative, and first pipeline section（411）, the second pipeline section（412）Two
Gap is left between relative end face.
7. the sealing structure according to claim 6 for nuclear reactor return, it is characterised in that first pipe
Section（411）, the second pipeline section（412）The positioning step being mutually located is respectively equipped with two relative end faces.
8. the sealing structure for nuclear reactor return according to any one of Claims 1-4, it is characterised in that
Second seal head（414）Also include being arranged on second pipeline section（412）On the 4th sealing（4145）, the described 4th
Sealing（4145）Set along border, the 3rd sealing（4142）, the 4th sealing（4145）It is located at the elasticity respectively
Preload piece（4141）Axial two ends；
3rd sealing（4142）It is provided with to the elastic preload piece（4141）The extended sleeve of first end
（4146）, the sleeve（4146）The border of one end of stretching and the 4th sealing（4145）Border sealing coordinate.
9. the sealing structure according to claim 8 for nuclear reactor return, it is characterised in that described first is close
End socket（413）, the second seal head（414）It is located at first pipeline section respectively（411）, the second pipeline section（412）Lateral surface, it is described
Elastic preload piece（4141）Positioned at the sleeve（4146）Inner side, the 4th sealing（4145）Outer ring and the sleeve
（4146）Internal face coordinate；Or,
First seal head（413）, the second seal head（414）It is located at first pipeline section respectively（411）, the second pipeline section
（412）Medial surface, the elastic preload piece（4141）Positioned at the sleeve（4146）Outside, the 4th sealing（4145）
Inner ring and the sleeve（4146）Outside wall surface coordinate.
10. a kind of double-layer sleeve structure for nuclear reactor, it is characterised in that the double-layer sleeve structure（4）Including inner tube
（41）Be set in said inner tube（41）Outer outer tube（42）, said inner tube（41）Including the first pipeline section plugged（411）,
Two pipeline sections（412）, first pipeline section（411）, the second pipeline section（412）Between using the pipe described in any one of claim 1 to 9
Seal structures.
11. a kind of nuclear reactor, including at least two chambers, it is characterised in that also including being connected between described two chambers
Claim 10 described in double-layer sleeve structure（4）, said inner tube（41）Interior formation first passage（A）, said inner tube（41）
Outside wall surface and the outer tube（42）Second channel is formed between internal face（B）；The first passage（A）With the second channel（B）
Mutually isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720085229.9U CN206530783U (en) | 2017-01-20 | 2017-01-20 | The sealing structure of nuclear reactor and its double-layer sleeve structure and return |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720085229.9U CN206530783U (en) | 2017-01-20 | 2017-01-20 | The sealing structure of nuclear reactor and its double-layer sleeve structure and return |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530783U true CN206530783U (en) | 2017-09-29 |
Family
ID=59921011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720085229.9U Withdrawn - After Issue CN206530783U (en) | 2017-01-20 | 2017-01-20 | The sealing structure of nuclear reactor and its double-layer sleeve structure and return |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206530783U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855157A (en) * | 2017-01-20 | 2017-06-16 | 中广核研究院有限公司 | double-layer sleeve structure and nuclear reactor |
| CN109027255A (en) * | 2018-06-11 | 2018-12-18 | 中广核研究院有限公司 | Steam generator and ring cavity sealing device |
-
2017
- 2017-01-20 CN CN201720085229.9U patent/CN206530783U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855157A (en) * | 2017-01-20 | 2017-06-16 | 中广核研究院有限公司 | double-layer sleeve structure and nuclear reactor |
| CN106855157B (en) * | 2017-01-20 | 2019-01-08 | 中广核研究院有限公司 | double-layer sleeve structure and nuclear reactor |
| CN109027255A (en) * | 2018-06-11 | 2018-12-18 | 中广核研究院有限公司 | Steam generator and ring cavity sealing device |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170929 Effective date of abandoning: 20190108 |