CN103438304A - Flange gasket and method for determining fact that flange gasket and flange hole are concentric - Google Patents
Flange gasket and method for determining fact that flange gasket and flange hole are concentric Download PDFInfo
- Publication number
- CN103438304A CN103438304A CN2013103566581A CN201310356658A CN103438304A CN 103438304 A CN103438304 A CN 103438304A CN 2013103566581 A CN2013103566581 A CN 2013103566581A CN 201310356658 A CN201310356658 A CN 201310356658A CN 103438304 A CN103438304 A CN 103438304A
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- flange
- gasket
- shim body
- bolt
- hole
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Abstract
The invention relates to a flange gasket which comprises a gasket body and small locating holes. The small locating holes correspond to bolt holes of a flange and are formed in the periphery direction with the circle center of the gasket as the symmetrical center. The invention further relates to a method for determining the fact that the flange gasket and a flange hole are concentric. The method comprises the steps that 1) thin lines are tied in the small locating holes, tail lines are reserved, the tail lines are longer than the flange when being stretched; 2) fixing bolts of the flange is arranged, one or two bolt holes are not provided with the fixing bolts; 3) the flange is placed in the gasket body; 4) the tail lines are placed between the two closest adjacent bolt holes; 5) the remaining bolts are arranged, the plane direction rotating moving allowance of the gasket body is reserved; 6) all of the tail lines are stretched and rotate at the same time, so that the gasket body rotates until the tail lines touch the same sides of the flange bolts; 7) the angles of the tail lines are adjusted, so that the tail lines are perpendicular to the tangential direction of the flange where the tail lines are placed; 8) the current position is fastened. The principle that circular diameter must pass through the circle center is used so that the gasket body and the flange can be concentric.
Description
Technical field
The invention belongs to flange accessory technical field, particularly a kind of flange gasket and definite flange gasket and the concentric method of flange hole.
Background technique
Flange gasket connects for piping flange, is two Sealings between flange.Conventional flange pad precision when mounted is low, is difficult to make pad and flange center's circular hole concentric, and the harm of decentraction, for common pipe, exactly it is long-pending to have reduced pipeline section, has increased gas pressure, thereby it is unstable to cause pipe to be pressed; For high pressure pipe line, due to gas high speed flow mistake, can cause pipeline wind song; For not dehydrating gas pipeline, pad is drenched in the gas humidity conference, affects the sealing of flange.The concentric significance of flange gasket and flange hole as can be seen here.
Summary of the invention
The present invention provides a kind of flange gasket and concentric flange gasket of flange hole of can making to reach flange gasket and the concentric method of flange hole determined for solving the technical problem existed in known technology.
The technological scheme that the present invention takes for the technical problem existed in the solution known technology is:
A kind of flange gasket, comprise shim body, on described shim body along circumferentially take the pad center of circle location aperture corresponding with the bolt hole of flange as symmetry center is provided with.
A kind of flange gasket that utilizes is determined flange gasket and the concentric method of flange hole, comprises the steps:
1) fasten fine rule in the location aperture on each shim body, reserve buttock line, the length of buttock line grows flange when stretching;
2) fixing bolt of mounting flange, reserve not construction bolt of one or two bolt hole, in order to put into shim body;
3) shim body is put into to flange from the fixed hole reserved;
4) buttock line is placed between nearest two adjacent bolts hole;
5) the residue bolt is installed, is left the in-plane rotary moveable surplus of shim body;
6) stretching all buttock lines, and rotation simultaneously, make the shim body rotation, until every buttock line is encountered flange bolt the same side;
7) adjust the angle of buttock line, make every buttock line vertical with its place flange tangent direction;
8) current location is fastening.
Advantage and good effect that the present invention has are:
The present invention is simple to operate, fine rule sectional area little Yi deformation, and shim body matter is soft in addition, through bolt, confine, in fine rule deformation inserted shim, thickness can be ignored, can ensure the flange sealing, utilize round diameter must cross the principle in the center of circle, can make shim body and flange concentric.
The accompanying drawing explanation
Fig. 1 is the flange gasket structural representation;
Fig. 2 is flange gasket and flange installation structure schematic diagram.
In Fig. 1 and Fig. 2,1. shim body, 2. locate aperture, 3. flange, 4. flange hole, 5. buttock line, 6. bolt hole.
Embodiment;
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Shown in Figure 1, a kind of flange gasket, comprise shim body 1, on shim body 1 along circumferentially take the pad center of circle location aperture 2 corresponding with the bolt hole 6 of flange 3 as symmetry center is provided with.
Square four bolt flanges of for example can take are example, on traditional circular gasket horizontal vertical each make a call to two the location apertures 2, and the location aperture 2 be center of circle symmetry in twos.
A kind of definite flange gasket and the concentric method of flange hole, referring to Fig. 2, comprise the steps:
1) fasten fine rule in the location aperture 2 on each shim body 1, reserve buttock line 5, the length of buttock line 5 grows flange 3 when stretching;
2) fixing bolt of mounting flange 3, reserve not construction bolt of one or two bolt hole 6, in order to put into shim body 1;
3) shim body 1 is put into to flange 3 from the fixed hole reserved;
4) pad buttock line 5 is placed between nearest two adjacent bolts hole 6;
5) the residue bolt is installed, is sure not clamping bolt, leave the in-plane rotary moveable surplus of shim body 1;
6) stretching all buttock lines 5, and rotation simultaneously, make shim body 1 rotation, until every buttock line 5 is encountered flange bolt the same side;
7) adjust the angle of buttock line 5, make every buttock line 5 vertical with its place flange tangent direction;
8) current location is fastening.
Remaining buttock line 5, without processing, just by fine rule volume asphyxia by external pressure on the chest and abdomen, can not affect the sealing of flange in flange confinement process.
Working principle of the present invention is: utilize round diameter must cross the principle in the center of circle.Common flange has symmetrical bolt hole usually, and every pair of line of the bolt hole with center of circle symmetry must be crossed the center of circle.Due to some some location with the same center of circle symmetry apertures (corresponding with the flange fixed hole) on flange body, when symmetrical buttock line is stretching, just formed a straight line of crossing the shim body center of circle, and the line of two buttock lines and bolt intersection point is also crossed the center of circle of flange hole 4, so just make two centers of circle point-blank, by another, symmetrical buttock line (in like manner) is just being determined to two circles are concentric.
The present invention is simple to operate, fine rule sectional area little Yi deformation, and shim body matter is soft in addition, through bolt, confine, in fine rule deformation inserted shim, thickness can be ignored, can ensure the flange sealing, utilize round diameter must cross the principle in the center of circle, can make shim body and flange concentric.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention also is not limited only to above-mentioned giving an example, and the variation that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also belong to protection scope of the present invention.
Claims (2)
1. a flange gasket, comprise shim body (1), and described shim body (1) is upper along circumferentially take the pad center of circle location aperture (2) corresponding with the bolt hole (6) of flange (3) as symmetry center is provided with.
2. one kind is utilized flange gasket claimed in claim 1 to determine flange gasket and the concentric method of flange hole, it is characterized in that, comprises the steps:
1) fasten fine rule in the location aperture (2) on each shim body (1), reserve buttock line (5), the length of buttock line (5) grows flange (3) when stretching;
2) fixing bolt of mounting flange (3), reserve not construction bolt of one or two bolt hole (6), in order to put into shim body (1);
3) shim body (1) is put into to flange (3) from the fixed hole reserved;
4) buttock line (5) is placed between nearest two adjacent bolts hole (6);
5) the residue bolt is installed, is left the in-plane rotary moveable surplus of shim body (1);
6) stretching all buttock lines (5), and rotation simultaneously, make shim body (1) rotation, until every buttock line (5) is encountered flange bolt the same side;
7) adjust the angle of buttock line (5), make every buttock line (5) vertical with its place flange tangent direction;
8) current location is fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310356658.1A CN103438304B (en) | 2013-08-15 | 2013-08-15 | Flange gasket and method for determining fact that flange gasket and flange hole are concentric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310356658.1A CN103438304B (en) | 2013-08-15 | 2013-08-15 | Flange gasket and method for determining fact that flange gasket and flange hole are concentric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103438304A true CN103438304A (en) | 2013-12-11 |
| CN103438304B CN103438304B (en) | 2015-06-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310356658.1A Active CN103438304B (en) | 2013-08-15 | 2013-08-15 | Flange gasket and method for determining fact that flange gasket and flange hole are concentric |
Country Status (1)
| Country | Link |
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| CN (1) | CN103438304B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197229A (en) * | 2016-07-15 | 2016-12-07 | 兰州兰石重型装备股份有限公司 | The measuring method of minor diameter tankage abutted flange concentricity |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3480301A (en) * | 1968-06-27 | 1969-11-25 | Walter H Kroening | Self-centering gauge ring |
| US4345464A (en) * | 1980-10-31 | 1982-08-24 | Fischer & Porter Company | Centering device for flowmeters interposed in flow line |
| DE19616163A1 (en) * | 1996-04-24 | 1997-10-30 | Alfred H Jung | Centring device for sealing flange connection |
| EP0939263A1 (en) * | 1998-02-26 | 1999-09-01 | Christian Loth | Dichtring für einen Rohrflansch |
| CN200940737Y (en) * | 2006-08-28 | 2007-08-29 | 杭新宇 | Seal spacer with positioning hole |
| CN202660112U (en) * | 2012-05-08 | 2013-01-09 | 彭期林 | Curve edge gasket |
-
2013
- 2013-08-15 CN CN201310356658.1A patent/CN103438304B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3480301A (en) * | 1968-06-27 | 1969-11-25 | Walter H Kroening | Self-centering gauge ring |
| US4345464A (en) * | 1980-10-31 | 1982-08-24 | Fischer & Porter Company | Centering device for flowmeters interposed in flow line |
| DE19616163A1 (en) * | 1996-04-24 | 1997-10-30 | Alfred H Jung | Centring device for sealing flange connection |
| EP0939263A1 (en) * | 1998-02-26 | 1999-09-01 | Christian Loth | Dichtring für einen Rohrflansch |
| CN200940737Y (en) * | 2006-08-28 | 2007-08-29 | 杭新宇 | Seal spacer with positioning hole |
| CN202660112U (en) * | 2012-05-08 | 2013-01-09 | 彭期林 | Curve edge gasket |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197229A (en) * | 2016-07-15 | 2016-12-07 | 兰州兰石重型装备股份有限公司 | The measuring method of minor diameter tankage abutted flange concentricity |
| CN106197229B (en) * | 2016-07-15 | 2018-08-31 | 兰州兰石重型装备股份有限公司 | The measurement method of minor diameter tankage abutted flange concentricity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103438304B (en) | 2015-06-24 |
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