CN109595411A - A kind of interference-fit type flange - Google Patents
A kind of interference-fit type flange Download PDFInfo
- Publication number
- CN109595411A CN109595411A CN201910050951.2A CN201910050951A CN109595411A CN 109595411 A CN109595411 A CN 109595411A CN 201910050951 A CN201910050951 A CN 201910050951A CN 109595411 A CN109595411 A CN 109595411A
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- CN
- China
- Prior art keywords
- annular
- interference
- flange disk
- flange
- gasket
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000003921 oil Substances 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims abstract description 14
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 9
- 239000011241 protective layer Substances 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000003628 erosive effect Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 239000003208 petroleum Substances 0.000 description 8
- 238000003466 welding Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000792 Monel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000003471 anti-radiation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention discloses a kind of interference-fit type flange, including the first flange disk and second flange disk being bolted, it is equipped with flanged joint column above first flange disk, flanged joint top end inner wall is stepped shape, forms multi-stage annular link slot；Be equipped with self-regulation gasket between first flange disk and second flange disk, self-regulation gasket mainly by annular plain cushion, be attached to the separation layer on annular plain cushion surface and be attached to the protective layer of insulation surface and form；The equally spaced outwardly convex of separation layer upper and lower surfaces forms a plurality of concentric ring-shaped seals band for being pierced by protective layer；Oil pocket is equipped in annular plain cushion, oil pocket extends in each annular sealing strip, and oil pocket is provided with appropriate hydraulic oil；First flange disk and second flange disk, which correspond at annular sealing strip, is equipped with annular seal groove, and annular sealing strip is matched with annular seal groove interference.The setting of self-regulation gasket had not only realized interference fit, but also was easily installed.
Description
Technical field
The present invention relates to petroleum pipeline technical field of sealing technology, and in particular to a kind of modified interference-fit type flange.
Background technique
Since the 21th century, the same energy supply of economic development, environmental protection contradiction become increasingly conspicuous, countries in the world are numerous and confused
Using " safe and efficient, environmentally friendly, economical " as the theme of industrial development.This trend is mainly reflected in that high temperature is set in petrochemical industry
The compactness of standby safe operation and connection system.
Flanged joint is widely used in the connection of petrochemical industry pressure pipeline with its easy-disassembling-assembling advantage.Common convex surface method
Blue end face of flange is convex surface platform, and high temperature and high pressure condition lower flange can generate moment of flexure, lead to gasket unbalance stress, ring flange
It deflects, and then is easy to produce leakage problem；In addition, end face of flange, gasket and bolt can under high temperature and pressure mode of operation
By very big stress, each component in flanged joint is caused to generate creep, and then lead to Flanged Connection System relaxation, finally led
Cause the leakage failure of flange connections.
Interference-fit type flange solves the above problem, and the definition of interference fit is the size in hole and the axis that is matched therewith
The difference of size be negative, that is, refer to that this sealing structure is by many producers with the cooperation of interference (being equal to zero including minimum interference)
Using.But since the volume of the volume ratio seal groove of seal boss is big, the form of interference fit leads to flange assembling process ten
Divide difficulty, while the environment such as received heat influence in different environments for flange and pipeline, size may generate little deviation, cause
Flange and pipe diameter mismatch in welding process, influence construction quality.
Summary of the invention
In view of the above technical problems, the present invention proposes a kind of modified interference-fit type flange.
A kind of interference-fit type flange, including the first flange disk and second flange disk being bolted, described first
It is equipped with flanged joint column above ring flange, flanged joint top end inner wall is stepped shape, forms multi-stage annular link slot；
Self-regulation gasket is equipped between the first flange disk and the second flange disk, the self-regulation gasket is mainly by annular
Plain cushion, the separation layer for being attached to the annular plain cushion surface and the protective layer composition for being attached to the insulation surface；It is described every
The equally spaced outwardly convex of absciss layer upper and lower surfaces forms a plurality of concentric ring-shaped seals band for being pierced by the protective layer；The annular
Oil pocket is equipped in plain cushion, the oil pocket extends in annular sealing strip described in each, and the oil pocket is provided with appropriate hydraulic oil；
The first flange disk and the second flange disk, which correspond at the annular sealing strip, is equipped with annular seal groove, described
Annular sealing strip is matched with the annular seal groove interference.
Further, the first flange disk and the second flange disk opposite face are equipped with auxiliary seal ring, and described second
Ring flange place opposite with the auxiliary seal ring is equipped with auxiliary seal groove；The auxiliary seal ring is set to the annular seal groove
Outside；Further, the auxiliary seal ring bottom be equipped with delta seal slot, the auxiliary seal trench bottom be equipped with it is described
The delta seal ring that delta seal slot matches；Further, auxiliary seal pad is equipped in the auxiliary seal groove.
Further, the diameter of the flanged joint column is from top to bottom gradually increased；Further, the flanged joint
Column is made of inner tube, outer tube, and the diameter of the inner tube is isometric from top to bottom, the diameter of the outer tube from top to bottom by
It is cumulative big；The outer tube is from top to bottom equipped with several reinforcing rings at the inner tube；Further, the outer tube
Surface is equipped with erosion resistant coating.
Further, the first gasket and the second gasket, first gasket and second pad are socketed on the bolt
Piece is respectively equipped with tooth engaged and occlusal crib on opposite sides.
1. flanged joint column top multi-stage annular link slots provide the welding of different pore size to having the beneficial effect that in the present invention
Face can effectively reduce the gap between petroleum pipeline and flanged joint column, so that connection between the two is more secured；2. from
The setting of adjusting gasket had not only realized interference fit, but also was easily installed；3. auxiliary seal ring and auxiliary seal groove, in self-regulated
On the basis of saving the interference seal that gasket provides, a seal structures are further added by, the leakproofness to petroleum pipeline is further increased.
Detailed description of the invention
Fig. 1 is the internal structure cross-sectional view of interference-fit type flange；
Fig. 2 is the partial structure diagram of self-regulation gasket；
Fig. 3 is the schematic diagram of internal structure of the middle section Fig. 2 A.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.The embodiment of the present invention is
It is provided for the sake of example and description, and is not exhaustively or to limit the invention to disclosed form.Very much
Modifications and variations are obvious for the ordinary skill in the art.Selection and description embodiment are in order to more preferable
Illustrate the principle of the present invention and practical application, and makes those skilled in the art it will be appreciated that the present invention is suitable to design
In the various embodiments with various modifications of special-purpose.
A kind of interference-fit type flange, as shown in Figure 1, including by the fixed first flange disk 1 of bolt 4 and second flange
Disk 2 is equipped with self-regulation gasket 3 between the first flange disk 1 and the second flange disk 2.
The self-regulation gasket 3, as shown in Figure 2 and Figure 3, mainly by annular plain cushion 301, be attached to the annular plain cushion 301
The separation layer 302 on surface and the protective layer 303 for being attached to the insulation surface form；302 upper and lower surfaces of separation layer are equal
Outwardly convex at equal intervals forms a plurality of concentric ring-shaped seals band 304 for being pierced by the protective layer；It is set in the annular plain cushion 301
There is oil pocket 305, the oil pocket 305 extends in annular sealing strip 304 described in each, and the oil pocket 305 is provided with appropriate liquid
Pressure oil.The first flange disk 1 and the second flange disk 2, which correspond at the annular sealing strip, is respectively equipped with annular seal groove
101/201, the annular sealing strip is matched with the annular seal groove interference.
Oil pocket is provided with appropriate hydraulic oil, and hydraulic oil has mobility, when annular sealing strip starts to be embedded in annular seal groove,
After annular sealing strip is by external compression, inside extruding force is formed to the oil pocket of its inside, so that hydraulic oil is to annular
Oil pocket flowing inside plain cushion, the space being inwardly compressed is left to annular sealing strip, consequently facilitating in insertion annular seal groove；
During first flange disk and second flange disk are bolted, the annular plain cushion for the gasket that is self-regulated is by from first
The pressure of ring flange and second flange disk, oil pocket flowing of the hydraulic oil of internal oil pocket into annular sealing strip, so that annular
It is full inside band, it is matched with annular seal groove interference.Here suitable hydraulic oil refers to that hydraulic oil still has inside oil pocket
Certain flowing space, and can guarantee after flange is installed, annular sealing strip is in interference with annular seal groove and matches shape
State.
The material of annular gasket can use but be not limited to red copper, and red copper plasticity is fabulous, be easy to hot pressing and cold pressure processing,
Certain deformation quantity can be generated under the extruding of two side flanges；The material of separation layer can use but be not limited to polytetrafluoroethyl-ne
Alkene, polytetrafluoroethylene (PTFE) have the characteristics that antiacid alkali resistant, resist various organic solvents, are practically insoluble in all solvents, while having resistance to
The characteristics of high temperature, coefficient of friction are extremely low；Protective layer can use but be not limited to the silk screen of monel alloy production, monel metal
Also known as nickel alloy is one kind using metallic nickel as matrix, and alloy made of other elements such as addition copper, iron, manganese has fairly good
Corrosion resistance；During annular sealing strip is embedded in annular seal groove, ring packing belt surface can also be coated with lubricant layer
306, such as expanded graphite, expanded graphite has extremely strong resistance to pressure, flexibility, plasticity and a self-lubrication, it is extremely strong resist it is high and low
Warm, anticorrosive, anti-radiation characteristic, extremely strong anti-aging, anti-twist characteristic, the fusing and infiltration that various metals can be resisted.
The first flange disk 1 is equipped with auxiliary seal ring 102, the second flange with 2 opposite face of second flange disk
Disk 2 and the opposite place of the auxiliary seal ring 102 are equipped with auxiliary seal groove 202；The auxiliary seal ring 102 is set to the annular
101 outside of seal groove.The setting of auxiliary seal ring and auxiliary seal groove, on the basis for the interference seal that self-regulation gasket provides
On, a seal structures are further added by, the leakproofness to petroleum pipeline is further increased.
In order to further increase auxiliary seal effect, 102 bottom of auxiliary seal ring is equipped with delta seal slot 103, institute
It states 202 bottom of auxiliary seal groove and is equipped with the delta seal ring 203 to match with the delta seal slot 103, the auxiliary seal
Auxiliary seal pad 204 is equipped in slot 202.
Flanged joint column 104 is equipped with above the first flange disk 1, the 104 top inner wall of flanged joint column is in ladder
Shape forms multi-stage annular link slot 105.Multi-stage annular link slot provides the welding surface of different pore size, when flanged joint column
When link slot and/or petroleum pipeline are influenced to occur slight change by environment, choose suitable welding surface welding petroleum pipeline and
Flanged joint column can effectively reduce the gap between petroleum pipeline and flanged joint column in this way, so that between the two
It connects more secured.Certainly, the margin here between the adjacent steps of multi-stage annular link slot is very little, with its own and stone
Oil-piping is influenced to occur slight change in same magnitude by environment.
The flanged joint column 104 is made of inner tube 1041, outer tube 1042, and the diameter of the inner tube 1041 is by upper
Isometric under, the diameter of the outer tube 1042 is from top to bottom gradually increased.Structure as flanged joint column increases and the
The contact area of one ring flange keeps it more secured with the connection of first flange disk.
The outer tube 1042 is from top to bottom equipped with several reinforcing rings 1043 at the inner tube 1041, reinforcing ring
The intensity that flanged joint column can be increased is set, inner tube is helped to resist the pressure from petroleum pipeline internal flow.It is described outer
Layer 1042 surface of pipe is equipped with erosion resistant coating 1044, and the material of erosion resistant coating can use but be not limited to atactic copolymerized polypropene, has good
Good anti-corrosion effects.
The first gasket 5 and the second gasket 6 are socketed on the bolt 4, first gasket 5 and second gasket 6 exist
Tooth engaged and occlusal crib are respectively equipped on opposite face, tooth engaged and occlusal crib are mutually twisted, and are prevented bolt, nut from loosening, are improved
The fixed compactness of bolt.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of interference-fit type flange, including the first flange disk and second flange disk being bolted, it is characterised in that:
It is equipped with flanged joint column above the first flange disk, flanged joint top end inner wall is stepped shape, forms multistage ring
Shape link slot；
Self-regulation gasket is equipped between the first flange disk and the second flange disk, the self-regulation gasket is mainly by annular
Plain cushion, the separation layer for being attached to the annular plain cushion surface and the protective layer composition for being attached to the insulation surface；It is described every
The equally spaced outwardly convex of absciss layer upper and lower surfaces forms a plurality of concentric ring-shaped seals band for being pierced by the protective layer；The annular
Oil pocket is equipped in plain cushion, the oil pocket extends in annular sealing strip described in each, and the oil pocket is provided with appropriate hydraulic oil；
The first flange disk and the second flange disk, which correspond at the annular sealing strip, is equipped with annular seal groove, described
Annular sealing strip is matched with the annular seal groove interference.
2. interference-fit type flange according to claim 1, it is characterised in that: the first flange disk and second method
Blue disk opposite face is equipped with auxiliary seal ring, and the second flange disk is opposite with the auxiliary seal ring to be located to be equipped with auxiliary seal groove；
The auxiliary seal ring is set on the outside of the annular seal groove.
3. interference-fit type flange according to claim 2, it is characterised in that: the auxiliary seal ring bottom is equipped with triangle
Seal groove, the auxiliary seal trench bottom are equipped with the delta seal ring to match with the delta seal slot.
4. interference-fit type flange according to claim 3, it is characterised in that: it is close to be equipped with auxiliary in the auxiliary seal groove
Packing.
5. interference-fit type flange according to claim 1, it is characterised in that: the diameter of the flanged joint column by up to
Under be gradually increased.
6. interference-fit type flange according to claim 5, it is characterised in that: the flanged joint column is by inner tube, outer
Layer pipe composition, the diameter of the inner tube is isometric from top to bottom, and the diameter of the outer tube is from top to bottom gradually increased；It is described outer
Layer, which is managed, is from top to bottom equipped with several reinforcing rings at the inner tube.
7. interference-fit type flange according to claim 6, it is characterised in that: the outer layer pipe surface is equipped with erosion resistant coating.
8. interference-fit type flange according to claim 1, it is characterised in that: be socketed on the bolt the first gasket and
Second gasket, first gasket and second gasket are respectively equipped with tooth engaged and occlusal crib on opposite sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910050951.2A CN109595411A (en) | 2019-01-21 | 2019-01-21 | A kind of interference-fit type flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910050951.2A CN109595411A (en) | 2019-01-21 | 2019-01-21 | A kind of interference-fit type flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109595411A true CN109595411A (en) | 2019-04-09 |
Family
ID=65966246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910050951.2A Pending CN109595411A (en) | 2019-01-21 | 2019-01-21 | A kind of interference-fit type flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109595411A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076479A (en) * | 2022-06-15 | 2022-09-20 | 中国科学院上海应用物理研究所 | Flange self-sealing device for high-temperature molten salt environment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120009110A (en) * | 2010-07-22 | 2012-02-01 | 김건우 | Rubber ring attachment structure of flange |
| CN203809913U (en) * | 2014-05-07 | 2014-09-03 | 齐迎春 | Rotary flange |
| CN204153362U (en) * | 2014-05-12 | 2015-02-11 | 马鞍山宏力橡胶制品有限公司 | Sealing flange pad |
| CN104565618A (en) * | 2015-01-27 | 2015-04-29 | 武汉工程大学 | High-temperature flange sealing structure comprising flexible graphite metal omega-shaped tooth composite gasket |
| CN206572101U (en) * | 2017-01-17 | 2017-10-20 | 广州市赛思达机械设备有限公司 | Dual-seal loose flange attachment structure |
| CN206600544U (en) * | 2017-03-03 | 2017-10-31 | 孟宪超 | A kind of antiseep flange connector |
-
2019
- 2019-01-21 CN CN201910050951.2A patent/CN109595411A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120009110A (en) * | 2010-07-22 | 2012-02-01 | 김건우 | Rubber ring attachment structure of flange |
| CN203809913U (en) * | 2014-05-07 | 2014-09-03 | 齐迎春 | Rotary flange |
| CN204153362U (en) * | 2014-05-12 | 2015-02-11 | 马鞍山宏力橡胶制品有限公司 | Sealing flange pad |
| CN104565618A (en) * | 2015-01-27 | 2015-04-29 | 武汉工程大学 | High-temperature flange sealing structure comprising flexible graphite metal omega-shaped tooth composite gasket |
| CN206572101U (en) * | 2017-01-17 | 2017-10-20 | 广州市赛思达机械设备有限公司 | Dual-seal loose flange attachment structure |
| CN206600544U (en) * | 2017-03-03 | 2017-10-31 | 孟宪超 | A kind of antiseep flange connector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076479A (en) * | 2022-06-15 | 2022-09-20 | 中国科学院上海应用物理研究所 | Flange self-sealing device for high-temperature molten salt environment |
| CN115076479B (en) * | 2022-06-15 | 2023-09-19 | 中国科学院上海应用物理研究所 | Flange self-sealing device for high-temperature molten salt environment |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190409 |