CN106499893A - A kind of multiple-sealed flange with leakage monitoring function - Google Patents
A kind of multiple-sealed flange with leakage monitoring function Download PDFInfo
- Publication number
- CN106499893A CN106499893A CN201611231627.3A CN201611231627A CN106499893A CN 106499893 A CN106499893 A CN 106499893A CN 201611231627 A CN201611231627 A CN 201611231627A CN 106499893 A CN106499893 A CN 106499893A
- Authority
- CN
- China
- Prior art keywords
- flange
- seal area
- secondary seal
- area
- upper flange
- 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
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
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
-
- 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
- F16L23/006—Attachments
Abstract
The present invention is a kind of multiple-sealed flange with leakage monitoring function, is related to multiple-sealed flange technical field.The present invention includes upper flange, lower flange, nut, studs, sensor；Upper flange is compressed by multigroup nut and studs with lower flange and is connected, it is provided between upper flange and lower flange by paracentral once sealing area and by antermarginal secondary seal area, the cavity that leaks hunting of sealing is formed between upper flange and lower flange, between once sealing area and secondary seal area, the sensor of the cavity inside that leaks hunting in outside installation.The present invention not only has multiple-sealed effect, is also provided with the cavity that leaks hunting, can measure to judge whether flange leaks by parameters such as the pressure of the medium to the cavity inside that leaks hunting, temperature.Present invention can apply to various operating modes, keep good compactness, and the compactness state of energy real-time monitoring flange, or even the large database concept that can set up flange status monitoring for a long time.
Description
Technical field
The present invention relates to a kind of multiple-sealed flange, and in particular to a kind of multiple-sealed method with leakage monitoring function
Blue.
Background technology
In industry, flange is widely used in the industries such as oil, chemical industry, pharmacy, the energy, HVAC and electric power, flange connection system
The characteristics of system is easily installed with which, is dismantled, the connection being commonly used between pipeline and pipeline, equipment and pipeline, equipment and equipment.
Effectively most directly external embodiment is exactly not leak for tubular part connection, it is seen that not the occurring of flange leak to equipment or
The operation of system plays conclusive effect.Industrial, gas oil pipe leakage causes blast, the leakage of chemical pipeline poisonous medium right
Environment causes severe contamination, pipeline of nuclear power plant leakage causes the phenomenon of radiation pollution is all the problem for having existed.But make a general survey of
Entirely industrial circle, the not general standard that passes judgment on regard to flange leakage, also monitor without simple and effective flange leakage
Device, to be monitored to the sealing state of flange.
Content of the invention
The present invention provides a kind of multiple-sealed flange with leakage monitoring function, can apply to various operating modes, long-term guarantor
Hold good compactness, and the compactness state of energy real-time monitoring flange, or even the big data that flange status monitoring can be set up
Storehouse.
The technical scheme is that：
A kind of multiple-sealed flange with leakage monitoring function, including upper flange, lower flange, nut, studs, biography
Sensor；
Upper flange is compressed by multigroup nut and studs with lower flange and is connected, and is provided between upper flange and lower flange
By paracentral once sealing area and lean on antermarginal secondary seal area, between upper flange and lower flange, once sealing area with
The cavity that leaks hunting of sealing is formed between secondary seal area, the sensor of the cavity inside that leaks hunting in outside installation.
Also include that data processing and transport module, data processing and transport module are connected with sensor, send data to
Master control room.
Also include pad, O-ring seals；
In the once sealing area, the bossing of upper flange is mated with the depression split-phase of lower flange, bossing
Height more than sink part depth；When upper flange is compressed with lower flange, upper flange bossing stretches into lower flange and sink
Part, pad be clamped between upper flange and lower flange formed sealing, lower flange sink part side wall on be provided with two recessed
Groove, and the O-ring seals for matching are installed in a groove, sealing is formed with the side wall of upper flange bossing.
Also include secondary seal area female seat groove, secondary seal area annular bead；
In the secondary seal area, secondary seal area female seat groove is matched with secondary seal area annular bead, and two
Depth of the height of secondary seal area annular bead less than secondary seal area female seat groove；When upper flange is compressed with lower flange,
Secondary seal area annular bead is stretched in secondary seal area female seat groove, and secondary seal area female seat groove inwall both sides are symmetrical
Three pairs of grooves are provided with, and the O-ring seals for matching are installed in a groove, formed with secondary seal area annular bead close
Envelope.
The sensor is temperature sensor, pressure transducer, one or more in humidity sensor.
The data processing and transport module are on upper flange.
In the once sealing area, the root of the upper flange bossing is set to arc transition area.
In the once sealing area, the piston ring that described two O-ring seals can be staggered with three breach replaces.
In the secondary seal area, the upper end of secondary seal area annular bead is round and smooth structure.
Beneficial effects of the present invention are：
First, the present invention is provided with once sealing area and secondary seal area, and the once sealing area is by pad and two O shapes
Sealing ring is constituted, the sealing of 3 roads of composition；The secondary seal area is made up of 6 O-ring seals, defines the sealing of 6 roads, whole
The sealing of 9 roads is defined in Flanged Connection System, defines a kind of multiple-sealed effect.
Second, the gasket seal is a kind of forced seal, and the thrust needed for gasket seal is completely by pretension bolt
There is provided, and O-ring seals sealing is come by the extruding for sealing ring being produced when upper lower flange interference fits or interference fit radially
Realize.The extruding force radially that this O-ring seals are subject to can't be with the stress relaxation from lax or bolt of bolt
Reduce, so when bolt power occurs lax, the sealing property of O-ring seals can't decline.
3rd, the present invention is provided with the cavity that leaks hunting, and can pass through the parameters such as pressure, the temperature of the medium to the cavity inside that leaks hunting
Measure to judge whether flange leaks, can also be by volume change or mass change come quantitatively evaluating flange
Compactness state.
4th, the present invention is also provided with data processing and transport module, and data are analyzed, and the data for measuring are passed
Master control room is delivered to, is easy to be monitored the real-time status of single flange.When this kind of flange batch is used for certain or multiple works
The large database concept of the running status of respective flange when in the pipeline of factory, is advantageously formed, is conducive to entering the life-span of flange of the same race
Row assessment.
Description of the drawings
Fig. 1 is the overall cross section structure diagram of the present invention.
Fig. 2 is Tu1Zhong A areas (secondary seal area) enlarged diagram.
Fig. 3 is Tu1Zhong B areas (once sealing area) enlarged diagram.
In figure, 1- nuts, 2- studs, 3- data processings and transport module, 4- upper flanges, 4-1 arc transition area, 5-
Temperature sensor, 6- pressure transducers, 7- are leaked hunting cavity, 8- lower flanges, 9- pads, 10- secondary seals area female seat groove,
11- secondary seals area O-ring seals, 12- secondary seals area O-ring groove, 13- secondary seals area annular bead, the upper methods of 14-
Blue sealing surface, 15- once sealings area O-ring seals, 16- lower flange sealing surfaces, 17- once sealings area sealing ring groove.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2, Figure 3 shows, the present invention is a kind of multiple-sealed flange with leakage monitoring function, including upper method
Blue 4, lower flange 8, pad 9, once sealing area O-ring seals 15, secondary seal area O-ring seals 11, nut 1, studs
2nd, temperature sensor 5, pressure transducer 6, data processing and transport module 3, wherein, upper flange 4 is provided with upper flange sealing surface
14th, arc transition area 4-1, secondary seal area female seat groove 10, secondary seal area O-ring groove 12, lower flange 8 are provided with
Lower flange sealing surface 16, once sealing area sealing ring groove 17, secondary seal area annular bead 13, upper flange 4 and lower flange 8
Between formed and leak hunting cavity 7.
Upper flange 4 is compressed by multigroup nut 1 and studs 2 with lower flange 8 and is connected, between upper flange 4 and lower flange 8
It is provided with by paracentral once sealing area B and by antermarginal secondary seal area A, in once sealing area B and secondary seal area A
Between form the cavity 7 that leaks hunting of a sealing, the cavity 7 that leaks hunting can be carried out to the compactness of pad 9 in flange once sealing area B
Monitoring.
Once sealing area B includes the upper flange sealing surface 14 of upper flange 4, the lower flange sealing surface 16 of lower flange 8 and once
Seal area sealing ring groove 17, pad 9, once sealing area O-ring seals 15, secondary seal area A include the secondary of upper flange 4
Seal area female seat groove 10 and secondary seal area O-ring groove 12, the secondary seal area annular bead 13, two of lower flange 8
Secondary seal area O-ring seals 11.
In once sealing area B, the upper flange sealing surface 14 of projection is matched with sagging lower flange sealing surface 16, on
The depth that the height of 14 projection of flange sealing surface sink more than lower flange sealing surface 16, it is ensured that upper flange 4 matches somebody with somebody pairing with lower flange 8
When holding together, can form, between upper flange 4 and lower flange 8, between once sealing area B and secondary seal area A, the vestibule that leaks hunting
7.When upper flange 4 is closed up with the pairing of lower flange 8,4 bossing of upper flange stretches into lower flange 8 and sink part, and pad 9 is pressed from both sides
Tightly between upper flange sealing surface 14 and lower flange sealing surface 16, sealing is formed；Lower flange 8 sink part side wall on be provided with
Liang Ge once sealings area sealing ring groove 17, is provided with match once close in once sealing area sealing ring groove 17
Envelope area's O-ring seals 15, form sealing with the side wall of 4 bossing of upper flange；Realize the once sealing of flange.Due to ring flange
In use, larger moment of flexure can be formed between bolt power and pad power, therefore the root of 4 bossing of upper flange is set
Arc transition area 4-1 is set to, the generation of high stress areas can be prevented effectively from.Liang Ge once sealings area O-ring seals herein
15 piston rings that can be staggered with three breach replace, and the piston ring has elasticity, can form dynamic sealing.
In secondary seal area A, secondary seal area female seat groove 10 is matched with secondary seal area annular bead 13, and two
Depth of the height of secondary seal area annular bead 13 less than secondary seal area female seat groove 10, it is ensured that upper flange 4 and lower flange 8
Pairing is when close up, the upper end of secondary seal area annular bead 13 bottom not with secondary seal area female seat groove 10
Contact, leaves certain space so that during 2 pretension of studs, and the pretension of studs 2 will not be subject to secondary seal
The restriction that annular bead 13 upper end in area's is blocked with 10 bottom of secondary seal area female seat groove.When upper flange 4 is matched with lower flange 8
When closing up, secondary seal area annular bead 13 is stretched in secondary seal area female seat groove 10, and secondary seal area spill is close
10 inwall both sides of sealing groove are symmetrically arranged with three pairs of secondary seal area O-ring grooves 12, in secondary seal area O-ring groove 12
In the secondary seal area O-ring seals 11 for matching are installed, with secondary seal area annular bead 13 formed sealing, realize flange
Secondary seal.When bolt looseness, even if once sealing failure, secondary seal can also ensure that sealing effectiveness.Secondary seal
The upper end of area's annular bead 13 is set to round and smooth structure, conveniently smoothly enters the secondary seal area female seat of upper flange 4
Groove 10.
The outside of cavity 7 of leaking hunting installs pressure transducer 5 and temperature sensor 6, and temperature sensor 5 is for the sky that leaks hunting
Medium temperature inside chamber 7, pressure transducer 6 is for the pressure inside the cavity 7 that leaks hunting.According to measurement needs, can be with
Other sensors are installed, for example：Humidity sensor.
Temperature sensor 5 is connected with data processing and transport module 3 with pressure transducer 6, data processing and transport module 3
On upper flange 4.Data processing and transport module 3 enter line number to the data that temperature sensor 5 and pressure transducer 6 are measured
According to process, and the forms such as data separate Internet of Things, radio wave or WiFi are delivered to master control room, are easy to single flange
Real-time status is monitored.When above-mentioned flange batch is used in certain or the pipeline of multiple factories, corresponding method is advantageously formed
The large database concept of blue running status, is conducive to being estimated the life-span of flange of the same race.
Data processing and transport module 3 are to the roadmap of data with the different and different of medium.When medium be gaseous state or
During liquid medium, if substantially increasing occurs in pressure measuring value, flange occurs in that leakage；When medium is high temperature or cryogenic media
When, if significant rising occurs in measured temperature, while with the increase of pressure, then occurring in that leak condition；When medium is gas
During body, can make quantitative judgement so that volume or the mass change of gas leakage is provided according to equation of gaseous state.
Above embodiments of the invention are explained in detail, above-mentioned embodiment is only most highly preferred embodiment of the invention,
But the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, can with
Make a variety of changes on the premise of without departing from present inventive concept.
Claims (9)
1. a kind of multiple-sealed flange with leakage monitoring function, it is characterised in that：Including upper flange (4), lower flange (8),
Nut (1), studs (2), sensor；
Upper flange (4) and lower flange (8) are connected by multigroup nut (1) and studs (2) compression, upper flange (4) and purgation
It is provided between blue (8) by paracentral once sealing area and by antermarginal secondary seal area, in upper flange (4) and lower flange
(8) cavity that leaks hunting (7) of sealing is formed between, between once sealing area and secondary seal area, measurement is installed is leaked hunting sky outside
The internal sensor in chamber (7).
2. a kind of multiple-sealed flange with leakage monitoring function as claimed in claim 1, it is characterised in that：Also include data
Process and transport module (3), data processing and transport module (3) are connected with sensor, send data to master control room.
3. a kind of multiple-sealed flange with leakage monitoring function as claimed in claim 1, it is characterised in that：Also include pad
(9), O-ring seals；
In the once sealing area, the bossing of upper flange (4) is mated with the depression split-phase of lower flange (8), lobe
Depth of the height for dividing more than part of sinking；When upper flange (4) is compressed with lower flange (8), upper flange (4) bossing is stretched into
Lower flange (8) sink part, and pad (9) is clamped between upper flange (4) and lower flange (8) and forms sealing, and lower flange (8) sink
Two grooves are provided with partial side wall, and the O-ring seals for matching are installed in a groove, raised with upper flange (4)
Partial side wall forms sealing.
4. a kind of multiple-sealed flange with leakage monitoring function as claimed in claim 1, it is characterised in that：Also include secondary
Seal area female seat groove (10), secondary seal area annular bead (13)；
In the secondary seal area, secondary seal area female seat groove (10) and secondary seal area annular bead (13) phase
Match somebody with somebody, the height in secondary seal area annular bead (13) is less than the depth in secondary seal area female seat groove (10)；When upper flange (4)
When compressing with lower flange (8), secondary seal area annular bead (13) is stretched in secondary seal area female seat groove (10), secondary close
Envelope area female seat groove (10) inwall both sides are symmetrically arranged with three pairs of grooves, and are provided with the O shapes sealing for matching in a groove
Circle, forms sealing with secondary seal area annular bead (13).
5. a kind of multiple-sealed flange with leakage monitoring function as claimed in claim 1, it is characterised in that：The sensor
One or more in for temperature sensor (5), pressure transducer (6), humidity sensor.
6. a kind of multiple-sealed flange with leakage monitoring function as claimed in claim 2, it is characterised in that：At the data
Reason and transport module (3) are on upper flange (4).
7. a kind of multiple-sealed flange with leakage monitoring function as claimed in claim 3, it is characterised in that：Described once
In seal area, the root of upper flange (4) bossing is set to arc transition area (4-1).
8. a kind of multiple-sealed flange with leakage monitoring function as claimed in claim 3, it is characterised in that：Described once
In seal area, the piston ring that described two O-ring seals can be staggered with three breach replaces.
9. a kind of multiple-sealed flange with leakage monitoring function as claimed in claim 4, it is characterised in that：Described secondary
In seal area, the upper end in secondary seal area annular bead (13) is round and smooth structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611231627.3A CN106499893A (en) | 2016-12-28 | 2016-12-28 | A kind of multiple-sealed flange with leakage monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611231627.3A CN106499893A (en) | 2016-12-28 | 2016-12-28 | A kind of multiple-sealed flange with leakage monitoring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106499893A true CN106499893A (en) | 2017-03-15 |
Family
ID=58334317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611231627.3A Pending CN106499893A (en) | 2016-12-28 | 2016-12-28 | A kind of multiple-sealed flange with leakage monitoring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106499893A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355611A (en) * | 2017-08-11 | 2017-11-17 | 慧感(上海)物联网科技有限公司 | A kind of online collecting mechanism of hoop type flange sealing leak |
| CN108488514A (en) * | 2018-05-18 | 2018-09-04 | 张家港华日法兰有限公司 | A kind of flange being mutually socketed |
| CN109519619A (en) * | 2018-11-27 | 2019-03-26 | 河南美丽乡村环保科技有限公司 | A kind of sealing mechanism of the defeated universal pipes docking of biogas |
| CN112197906A (en) * | 2020-10-12 | 2021-01-08 | 中国船舶科学研究中心 | Simple end face dynamic seal pair sealing performance and friction state testing device |
| CN113339550A (en) * | 2021-07-14 | 2021-09-03 | 上海巨良阀门集团有限公司 | High temperature resistant ready-package three-way ball valve |
| CN113465645A (en) * | 2021-06-17 | 2021-10-01 | 上海交通大学 | Silk screen sensor assembly suitable for high-temperature and high-pressure flow working condition |
| EP3685087B1 (en) * | 2017-09-21 | 2021-12-08 | Safran Power Units | Method for detecting a leak in a connection system between a dispensing member and a receiving member |
| CN114439941A (en) * | 2021-12-29 | 2022-05-06 | 东方电气集团东方汽轮机有限公司 | Sealing structure of flange butt joint surface and sealing method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005009605U1 (en) * | 2005-06-18 | 2005-09-22 | Höcketstaller, Gerhard | Method for monitoring leakage in flange connections and shaft mountings in taps comprises trapping leaks in subsidiary chamber, signal being generated, e.g. by pressure monitor, if leak occurs |
| EP1950547A1 (en) * | 2007-01-29 | 2008-07-30 | Siemens Aktiengesellschaft | Device for monitoring the impermeability of a conduit |
| US8261596B2 (en) * | 2010-02-04 | 2012-09-11 | Lockheed Martin Company | Seal assembly with leak monitoring |
| CN203240161U (en) * | 2013-05-14 | 2013-10-16 | 浙江工贸职业技术学院 | Combined flange with T-shaped slot |
| CN104048125A (en) * | 2014-05-27 | 2014-09-17 | 北京航天发射技术研究所 | Redundant seal on-line detecting pipeline connector |
| CN104048124A (en) * | 2014-05-27 | 2014-09-17 | 北京航天发射技术研究所 | Redundant seal pipeline connector |
| CN203880274U (en) * | 2014-05-13 | 2014-10-15 | 武汉工程大学 | High-temperature pipeline flange |
| CN204962103U (en) * | 2015-07-06 | 2016-01-13 | 无锡市法兰锻造有限公司 | Pipe flange |
| CN206419591U (en) * | 2016-12-28 | 2017-08-18 | 核动力运行研究所 | A kind of multiple-sealed flange with leakage monitoring function |
-
2016
- 2016-12-28 CN CN201611231627.3A patent/CN106499893A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005009605U1 (en) * | 2005-06-18 | 2005-09-22 | Höcketstaller, Gerhard | Method for monitoring leakage in flange connections and shaft mountings in taps comprises trapping leaks in subsidiary chamber, signal being generated, e.g. by pressure monitor, if leak occurs |
| EP1950547A1 (en) * | 2007-01-29 | 2008-07-30 | Siemens Aktiengesellschaft | Device for monitoring the impermeability of a conduit |
| US8261596B2 (en) * | 2010-02-04 | 2012-09-11 | Lockheed Martin Company | Seal assembly with leak monitoring |
| CN203240161U (en) * | 2013-05-14 | 2013-10-16 | 浙江工贸职业技术学院 | Combined flange with T-shaped slot |
| CN203880274U (en) * | 2014-05-13 | 2014-10-15 | 武汉工程大学 | High-temperature pipeline flange |
| CN104048125A (en) * | 2014-05-27 | 2014-09-17 | 北京航天发射技术研究所 | Redundant seal on-line detecting pipeline connector |
| CN104048124A (en) * | 2014-05-27 | 2014-09-17 | 北京航天发射技术研究所 | Redundant seal pipeline connector |
| CN204962103U (en) * | 2015-07-06 | 2016-01-13 | 无锡市法兰锻造有限公司 | Pipe flange |
| CN206419591U (en) * | 2016-12-28 | 2017-08-18 | 核动力运行研究所 | A kind of multiple-sealed flange with leakage monitoring function |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355611A (en) * | 2017-08-11 | 2017-11-17 | 慧感(上海)物联网科技有限公司 | A kind of online collecting mechanism of hoop type flange sealing leak |
| CN107355611B (en) * | 2017-08-11 | 2022-10-11 | 慧感(上海)物联网科技有限公司 | Clamp formula flange seal leaks on-line collection mechanism |
| EP3685087B1 (en) * | 2017-09-21 | 2021-12-08 | Safran Power Units | Method for detecting a leak in a connection system between a dispensing member and a receiving member |
| CN108488514A (en) * | 2018-05-18 | 2018-09-04 | 张家港华日法兰有限公司 | A kind of flange being mutually socketed |
| CN109519619A (en) * | 2018-11-27 | 2019-03-26 | 河南美丽乡村环保科技有限公司 | A kind of sealing mechanism of the defeated universal pipes docking of biogas |
| CN112197906A (en) * | 2020-10-12 | 2021-01-08 | 中国船舶科学研究中心 | Simple end face dynamic seal pair sealing performance and friction state testing device |
| CN112197906B (en) * | 2020-10-12 | 2022-04-12 | 中国船舶科学研究中心 | Simple end face dynamic seal pair sealing performance and friction state testing device |
| CN113465645A (en) * | 2021-06-17 | 2021-10-01 | 上海交通大学 | Silk screen sensor assembly suitable for high-temperature and high-pressure flow working condition |
| CN113465645B (en) * | 2021-06-17 | 2023-03-14 | 上海交通大学 | Silk screen sensor assembly suitable for high-temperature and high-pressure flow working condition |
| CN113339550A (en) * | 2021-07-14 | 2021-09-03 | 上海巨良阀门集团有限公司 | High temperature resistant ready-package three-way ball valve |
| CN114439941A (en) * | 2021-12-29 | 2022-05-06 | 东方电气集团东方汽轮机有限公司 | Sealing structure of flange butt joint surface and sealing method thereof |
| CN114439941B (en) * | 2021-12-29 | 2024-04-16 | 东方电气集团东方汽轮机有限公司 | Sealing structure and sealing method of flange butt joint surface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106499893A (en) | A kind of multiple-sealed flange with leakage monitoring function | |
| CN206419591U (en) | A kind of multiple-sealed flange with leakage monitoring function | |
| US4531404A (en) | Flow cell assembly | |
| CN104330225A (en) | Leakage detection device for sealing filler | |
| KR102141590B1 (en) | Online sealing detection device, multi-section closed chamber processing device and method | |
| WO2015070529A1 (en) | Dry-type vacuum pump air exhaust process simulating and testing method and testing system | |
| US9103739B2 (en) | Seal for pressure transmitter for use in industrial process | |
| US7004470B2 (en) | Device for a pipe flange seal | |
| CN105423018B (en) | The leak-checking apparatus of Flanged Joints at Elevated Temperature | |
| CN205538101U (en) | Clamp formula flange leak detection device | |
| CN106932147A (en) | A kind of hoop type flange leakage monitor | |
| CN104502038A (en) | System and method for measuring air leakage rate of contact interface of sealing element | |
| US6857308B2 (en) | Valve technology | |
| CN110765692A (en) | Method for predicting static seal life of rubber O-shaped ring | |
| CN110118309A (en) | A kind of Monitoring Pinpelines device | |
| CN108181096A (en) | A kind of accelerated aging test method and apparatus of O-ring seal | |
| CN105015797A (en) | Sealing block cover for air intake duct | |
| CN114136609A (en) | Method for detecting inner and outer sealing performance of gasket | |
| CN204988643U (en) | Sealing washer gas tightness detection device | |
| CN217483751U (en) | Valve rod sealing element performance test device | |
| CN204330238U (en) | A kind of detection platform for connector welding sealing propertytest | |
| KR102037397B1 (en) | Design method of sealing for automobile based on sealing perfomence analysis of protrusion part | |
| CN204514553U (en) | A kind of helium mass spectrometer leak detector detects the large device leaked | |
| CN102607781A (en) | Non-contact leakage detecting method of double-layered packing sealing structure and system | |
| CN206223592U (en) | Bu Shi pressure-gage inspecting devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170315 |