CN207213401U - A kind of universal in-service online collecting mechanism of flange seal - Google Patents
A kind of universal in-service online collecting mechanism of flange seal Download PDFInfo
- Publication number
- CN207213401U CN207213401U CN201721005108.5U CN201721005108U CN207213401U CN 207213401 U CN207213401 U CN 207213401U CN 201721005108 U CN201721005108 U CN 201721005108U CN 207213401 U CN207213401 U CN 207213401U
- Authority
- CN
- China
- Prior art keywords
- flange
- pair
- shaped band
- face
- seal
- 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.)
- Active
Links
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a kind of universal in-service online collecting mechanism of flange seal, including：C-shaped band with notch part, the inner sealing surface for a pair of flange outer diameter Cylindrical Surfaces Contacts sealing that the inner surface of the axial end of C-shaped band two is formed and is mutually butted respectively, the outer surface of C-shaped band at least forms a lock ring face；At least one annular restraint zone, annular restraint zone lock ring is on lock ring face, so that the inner sealing surface of C-shaped band compresses a pair of flange outer diameter faces of cylinder being mutually butted respectively, and then to form collecting chamber between the inner surface and the outer ring surface for the annular gasket being pressed on a pair of flange seal end faces and the bolt bearing inner face of a pair of flanges of C-shaped band, the notch part formation collecting chamber of C-shaped band leads leak.
Description
Technical field
Flange seal leak detection field is the utility model is related to, it is more particularly to a kind of to be used for volatile organic matter
The universal in-service flange seal that the dangerous toxic gas leakage such as VOCs, toxic and harmful gas HAPs and flammable explosive gas is collected
Online collecting mechanism.
Background technology
The detection method of equipment and line component VOCs and HAPs source of leaks is LDAR at present, i.e., based on portable flame from
Sonization (FID), catalysis oxidation or combustion method, infrared absorption method (IR or NDIR) or photoionization (PID) instrument it is artificial periodically
Detection and the method for on-call maintenance.Portable instrument power consumption is big, it is impossible to carries out on-line real time monitoring to flange seal source of leaks.
Therefore, there is Chinese patent application publication No. CN101692353A to disclose a kind of leakage-detectable constant-stress sealing gasket at present
Piece, with reference to shown in Fig. 1, it include metallic inner 1, outer shroud 2, the first sealing ring 3 being arranged between metallic inner 1 and outer shroud 2,
It is arranged on second sealing ring 4 in the outside of the first sealing ring 3, the upper surface and lower surface point of the first sealing ring 3 and the second sealing ring 4
The upper surface and lower end of the upper surface and lower surface of outer shroud 2 and inner ring 1, the first sealing ring 3 and the second sealing ring 4 are not protruded from
Face contacts and sealed with the faying face of connector respectively, and the part side table of the external peripheral surface of the first sealing ring 3, outer shroud 2
The inner circumferential surface of face and the second sealing ring 4 forms groove 6,8, and the faying face of groove 6,8 and connector just forms sealing
Anti-leak cavity, cavity is connected by leak 7 with the external world.When the surface of the first sealing ring 3, which exists, to be leaked, medium can enter
Enter into the cavity and be diffused into by leak 7 on the outside of gasket seal, pressure gauge or sensor etc. are set in the outside of leak 7
Detection means, maintenance personal can be found that leakage soon.
But there is following shortcoming in above-mentioned patent：
1st, ring is collected in flange seal leakage and main seal ring is in together on a gasket seal, to collect letting out for flange seal
Leakage must remove existing flange bolt, change existing gasket seal, though the current sealing property of original gasket seal or
Technical indicator, which is no more than as defined in national standard or professional standard, to be required, cost is high.
2nd, the performance of primary seal can be influenceed, it is necessary to more if the auxiliary seal ring dimension overproof for collecting primary seal leakage
Big accurate bolt pretightening, it is not easy to the installation at scene.
3rd, the presence due to leaking or leading small opening 7 causes the conventional pads such as the thickness ratio metal wound gasket of such a constant stress pad
Piece thickness 0.5-1.0mm, and because the first sealing ring 3 (primary seal) and the second sealing ring 4 (auxiliary seal) are generally graphite etc.
Nonmetallic, when in-site installation is entered in in-service flange gap, main and auxiliary sealing ring easily damages so as to loss of seal or collects work(
Energy；If it is too small to lead small opening 7, easily blocked by heavy liquid or tar, leakage function is drawn in forfeiture, and auxiliary may can also be damaged for a long time by going down
Sealing.
4th, it is not suitable for male female face and tenon/groove flange sealing surface pattern.
Utility model content
The purpose of this utility model is to be directed to deficiencies of the prior art and defect, there is provided it is a kind of it is universal
The online collecting mechanism of flange seal is used as a servant, to solve the above problems.
The technical problem that the utility model solves can be realized using following technical scheme：
A kind of universal in-service online collecting mechanism of flange seal, including：
C-shaped band with notch part, a pair of methods that the inner surface of the axial end of C-shaped band two is formed and is mutually butted respectively
The inner sealing surface of blue outer diameter cylindrical face contact sealing, the outer surface of the C-shaped band at least forms a lock ring face；
At least one annular restraint zone, the annular restraint zone lock ring is on the lock ring face so that the C-shaped band it is interior close
Front cover compresses a pair of flange outer diameter faces of cylinder being mutually butted respectively, and then causes the inner surface of the C-shaped band with being pressed in
Formed between the outer ring surface of annular gasket on a pair of flange seal end faces and the bolt bearing inner face of the pair of flange
Collecting chamber, what the notch part of the C-shaped band formed the collecting chamber leads leak.
In a preferred embodiment of the present utility model, it is tight that the outer surface at the C-shaped band axial direction both ends is each provided with one
Hoop face, the annular restraint zone are a pair, and each annular restraint zone lock ring is on a lock ring face.
In a preferred embodiment of the present utility model, it is additionally provided with the inner surface of the C-shaped band by flexible sealing
There is the C-shaped diaphragm seal of notch part so that the inner surface of the C-shaped diaphragm seal is close with being pressed in a pair of flanges made of material
Collecting chamber is formed between the outer ring surface of annular gasket on end-blocking face and the bolt bearing inner face of the pair of flange, it is described
What the notch part of the notch part of C-shaped band and the C-shaped diaphragm seal was mutually correspondingly formed the collecting chamber leads leak.
In a preferred embodiment of the present utility model, the axle of the axial width of the C-shaped diaphragm seal and the C-shaped band
It is mutually adapted to width.
In a preferred embodiment of the present utility model, the lock ring face is crown for circular or circle, the annular fastening
The section of band is circular or rectangle.
In a preferred embodiment of the present utility model, fluid sealant is coated with the pair of flange outer diameter face of cylinder.
In a preferred embodiment of the present utility model, the gap profit between the bolt hole and bolt of the pair of flange
Sealed with sealing leakage glue.
In a preferred embodiment of the present utility model, the C-shaped band is made up of metal tape.
As a result of technical scheme as above, the beneficial effects of the utility model are：
1st, the utility model can solve existing leakage-detectable constant-stress sealing gasket collection method cannot be used for male female face and
The limitation and in-site installation of tenon/groove flange sealing surface pattern require the shortcomings that high, cost is high.
2nd, the utility model can collect the leakage of various flange sealing surfaces, including male female face and tenon/groove flange sealing
Face pattern.
As long as the 3rd, flange sealing structure, the utility model is applied to various ring-like pads；It need not remove existing in-service close
The pad and flange bolt of sealing property or technical indicator still within national standard or professional standard prescribed limit, it is versatile.
4th, the utility model does not influence on the sealing property of in-service existing flange seal gasket.
5th, C-shaped band of the present utility model and annular fastening strip material are easy to obtain from the market, simple installation, and cost is low.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of prior art.
Fig. 2 is a kind of vertical section structure schematic diagram of embodiment of the utility model.
Fig. 3 is a kind of cross section structure schematic diagram of embodiment of the utility model.
Fig. 4 is a kind of structural blast schematic diagram of embodiment of the utility model.
Fig. 5 is a kind of three-dimensional structure diagram of embodiment of the utility model.
Embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under
The utility model is expanded on further in face.
Referring to shown in Fig. 2 to Fig. 5, a kind of universal in-service online collecting mechanism of flange seal is including C-shaped band 100 and at least
One annular restraint zone 300.The utility model is applied to the operating mode of flange seal, is sealed when two flanges 10a, 10b cooperate,
Fixed between two flanges 10a, 10b by bolt 30, seal face 11a, 11b hold-down ring in the middle part of two flanges 10a, 10b
During shape pad 20, you can carry out online collect using the utility model and hunt leak.
C-shaped band 100 has a notch part 101, and the C-shaped band 100 in the present embodiment is made up of steel band, and easy to process, cost is low.
The inner surface of 100 liang of axial ends of C-shaped band forms inner sealing surface 111 respectively, inner sealing surface 111 at work be mutually butted one
Flange 10a, 10b outer diameter cylindrical face 12a, 12b are contacted and sealed.In order to further increase sealing effectiveness, a pair of flange outer diameter circles
Fluid sealant is coated with cylinder 12a, 12b.The outer surface of C-shaped band 100 at least forms a lock ring face 110, in order that obtaining C-shaped band
100 stress balances, improve the stability of sealing, and the outer surface at 100 axial both ends of C-shaped band is each provided with a lock ring face 110.
The effect of annular restraint zone 200 be lock ring on lock ring face 120, due to the lock ring face 120 in the present embodiment be one
Right, so the annular restraint zone 200 in the present embodiment is also a pair, annular restraint zone 200 is the restraint zone of prestressing force type.Annular
Restraint zone 200 cause C-shaped band 100 inner sealing surface 111 compress respectively be mutually butted a pair of flange outer diameter face of cylinder 12a,
12b, and then cause the inner surface of C-shaped band 100 and the annular gasket 20 that is pressed on a pair of flange seal end faces 11a, 11b
Collecting chamber a, the notch part 101 of C-shaped band 100 are formed between outer ring surface and a pair of flanges 10a, 10b bolt bearing inner face
Form collecting chamber a leads leak.
In order to further improve flange outer diameter face of cylinder 12a, 12b sealing, even if the flange outer diameter face of cylinder 12a, 12b
Due to get rusty or wear out-of-flatness be present in the case of could be used that the utility model, also set up on the inner surface of C-shaped band 100
Have made of flexible sealing material have notch part 301 C-shaped diaphragm seal 300 so that the inner surface of C-shaped diaphragm seal 300 with
The outer ring surface for the annular gasket 20 being pressed on a pair of flange seal end faces 11a, 11b and a pair of flanges 10a, 10b spiral shell
Collecting chamber a is formed between bolt supporting inner face, the notch part 101 of C-shaped band 100 and the notch part 301 of C-shaped diaphragm seal 300 are mutual
Be correspondingly formed collecting chamber a leads leak.And C-shaped diaphragm seal 300 has certain elastic force, prevent bolt 30 release or flange outside
Seal failure caused by the footpath face of cylinder 12a, 12b out-of-flatness.
In order that C-shaped diaphragm seal 300, the axial width and C of C-shaped diaphragm seal 300 can be compressed completely by obtaining inner sealing surface 111
The axial width of shape band 100 is mutually adapted.
The section in the lock ring face 110 in the present embodiment is crown for circular or circle, the section of annular restraint zone 200 to be circular or
Rectangle, prevent that C-shaped diaphragm seal 300 is cut off by shear stress made of flexible sealing material.
When the utility model is installed, the pre-coated of C-shaped diaphragm seal 300 is fixed on the flange outer diameter face of cylinder 12a, 12b；Then
C-shaped band 100 is coated and fixed in the outer surface of C-shaped diaphragm seal 300 so that the notch part 301 of C-shaped diaphragm seal 300 and C-shaped band 100
Notch part 101 be aligned；Then a pair of annular restraint zones 200 passed through from C-shaped band 100 and be wrapped in a pair of C-shaped band 100 it is tight
On hoop face 110, then a pair of annular restraint zones 200 are tightened and by the inner sealing surface of C-shaped band 100 with special portable formula frock clamp
111 lock rings are on C-shaped diaphragm seal 300 so that C-shaped diaphragm seal 300 is formed with the flange outer diameter face of cylinder 12a, 12b and sealed so that C
The inner surface of shape diaphragm seal 300 and the outer ring surface of annular gasket 20 that is pressed on a pair of flange seal end faces 11a, 11b with
And collecting chamber a is formed between a pair of flanges 10a, 10b bolt bearing inner face, notch part 101 and the C-shaped of C-shaped band 100 seal
The notch part 301 of piece 300 is mutually correspondingly formed collecting chamber a leak of leading, and leads leak and there was only unique one, leads leak placement
The on-line real time monitoring of various flange seal gasket source of leaks then can be achieved in sensor.
The utility model is applied to flange bolt hole or bolt corrosion is very close to each other and gas leaks from bolt and bolt hole
The occasion gone out；When the occasion that flange bolt hole or bolt have gap and have gas to leak, in-site installation sealing leakage glue will be used close
The gap 13 sealed between bolt hole or bolt.
In addition, the utility model has further the advantage that：
1st, the utility model can solve existing leakage-detectable constant-stress sealing gasket collection method cannot be used for male female face and
The limitation and in-site installation of tenon/groove flange sealing surface pattern require the shortcomings that high, cost is high.
2nd, the utility model can collect the leakage of various flange sealing surfaces, including male female face and tenon/groove flange sealing
Face pattern.
As long as the 3rd, flange sealing structure, the utility model is applied to various ring-like pads；It need not remove existing in-service close
The pad and flange bolt of sealing property or technical indicator still within national standard or professional standard prescribed limit, it is versatile.
4th, the utility model does not influence on the sealing property of in-service existing flange seal gasket.
5th, C-shaped band of the present utility model and annular fastening strip material are easy to obtain from the market, simple installation, and cost is low.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (8)
- A kind of 1. universal in-service online collecting mechanism of flange seal, it is characterised in that including：C-shaped band with notch part, outside a pair of flanges that the inner surface of the axial end of C-shaped band two is formed and is mutually butted respectively The inner sealing surface of footpath Cylindrical Surfaces Contact sealing, the outer surface of the C-shaped band at least forms a lock ring face；At least one annular restraint zone, the annular restraint zone lock ring is on the lock ring face so that the inner sealing surface of the C-shaped band A pair of flange outer diameter faces of cylinder being mutually butted are compressed respectively, and then are caused the inner surface of the C-shaped band and be pressed in a pair Formed and collected between the outer ring surface of annular gasket on flange seal end face and the bolt bearing inner face of the pair of flange Chamber, what the notch part of the C-shaped band formed the collecting chamber leads leak.
- A kind of 2. universal in-service online collecting mechanism of flange seal as claimed in claim 1, it is characterised in that the C-shaped Outer surface with axial both ends is each provided with a lock ring face, and the annular restraint zone is a pair, and each annular restraint zone lock ring exists On one lock ring face.
- A kind of 3. universal in-service online collecting mechanism of flange seal as claimed in claim 1 or 2, it is characterised in that the C Be additionally provided with the inner surface of shape band has the C-shaped diaphragm seal of notch part made of flexible sealing material so that the C-shaped is close The outer ring surface and the pair of flange of the inner surface of mounting and the annular gasket being pressed on a pair of flange seal end faces Collecting chamber is formed between bolt bearing inner face, the notch part of the C-shaped band and the notch part of the C-shaped diaphragm seal are mutually corresponding Form the collecting chamber leads leak.
- A kind of 4. universal in-service online collecting mechanism of flange seal as claimed in claim 3, it is characterised in that the C-shaped The axial width of the axial width of diaphragm seal and the C-shaped band is mutually adapted.
- A kind of 5. universal in-service online collecting mechanism of flange seal as claimed in claim 3, it is characterised in that the lock ring Face is crown for circular or circle, and the section of the annular restraint zone is circular or rectangle.
- 6. a kind of universal in-service online collecting mechanism of flange seal as claimed in claim 1, it is characterised in that the pair of Fluid sealant is coated with the flange outer diameter face of cylinder.
- 7. a kind of universal in-service online collecting mechanism of flange seal as claimed in claim 1, it is characterised in that the pair of Gap between the bolt hole and bolt of flange is sealed using sealing leakage glue.
- A kind of 8. universal in-service online collecting mechanism of flange seal as claimed in claim 1, it is characterised in that the C-shaped Band is made up of metal tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721005108.5U CN207213401U (en) | 2017-08-11 | 2017-08-11 | A kind of universal in-service online collecting mechanism of flange seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721005108.5U CN207213401U (en) | 2017-08-11 | 2017-08-11 | A kind of universal in-service online collecting mechanism of flange seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207213401U true CN207213401U (en) | 2018-04-10 |
Family
ID=61818505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721005108.5U Active CN207213401U (en) | 2017-08-11 | 2017-08-11 | A kind of universal in-service online collecting mechanism of flange seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207213401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401641A (en) * | 2017-08-11 | 2017-11-28 | 慧感(上海)物联网科技有限公司 | A kind of universal in-service online collecting mechanism of flange seal |
-
2017
- 2017-08-11 CN CN201721005108.5U patent/CN207213401U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401641A (en) * | 2017-08-11 | 2017-11-28 | 慧感(上海)物联网科技有限公司 | A kind of universal in-service online collecting mechanism of flange seal |
| CN107401641B (en) * | 2017-08-11 | 2023-08-18 | 慧感(上海)物联网科技有限公司 | On-line collection mechanism for universal in-service flange seal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207364506U (en) | A kind of online collecting mechanism of hoop type flange sealing leak | |
| EP1373853B1 (en) | Arrangement at a pipe flange seal | |
| CN107355611A (en) | A kind of online collecting mechanism of hoop type flange sealing leak | |
| CN105241614A (en) | Detection apparatus of pressure pipeline | |
| CN207213401U (en) | A kind of universal in-service online collecting mechanism of flange seal | |
| CN204717358U (en) | Pipeline gas leak detecting device | |
| CN107401641A (en) | A kind of universal in-service online collecting mechanism of flange seal | |
| CN206861104U (en) | A kind of natural gas line sealing gasket | |
| CN106402662B (en) | A kind of pipeline fluid leak detecting device | |
| CN2828510Y (en) | High-pressure non-leakage flange | |
| CN109114972A (en) | A kind of kiln tail sealing device of cement rotary kiln | |
| CN205192696U (en) | Detection apparatus for pipeline under pressure | |
| CN203629758U (en) | Tool specialized for leakage test of corrugated tube | |
| CN210375555U (en) | Testing device for sealing air tightness in hub bearing | |
| CN208083659U (en) | A kind of Vacuum diffusion bonding furnace | |
| CN101692353B (en) | Leakage-detectable constant-stress sealing gasket | |
| CN208397543U (en) | A kind of rapid-maintenance pipeline leakage device | |
| CN207975356U (en) | It is axially forced to formula tube joint assembly | |
| CN217875359U (en) | Natural gas leakage alarm device based on pressure detection | |
| CN217332076U (en) | Continuous monitor for concentration of post-scattering smoke dust | |
| CN217900607U (en) | Heat exchanger structure with pipe pass without welding | |
| RU2170807C2 (en) | Flanged joint of wellhead equipment | |
| CN205037078U (en) | Air -sensitive type pipe flange gas leak detection device | |
| RU2178510C2 (en) | Equipment flanged joint | |
| CN221121338U (en) | Accurate steel pipe convenient to split |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |