CN103438304B - 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
- CN103438304B CN103438304B CN201310356658.1A CN201310356658A CN103438304B CN 103438304 B CN103438304 B CN 103438304B CN 201310356658 A CN201310356658 A CN 201310356658A CN 103438304 B CN103438304 B CN 103438304B
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- flange
- gasket
- hole
- bolt
- shim body
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
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 determine flange gasket and the concentric method of flange hole.
Background technique
Flange gasket is used in piping flange connection, is the Sealing between two panels flange.Conventional flange pad when mounted precision is low, is difficult to make pad and flange center's circular hole with one heart, and the harm of decentraction, for common pipe, is amassed exactly reduce pipeline section, added gas pressure, thus it is unstable to cause pipe to be pressed; For high pressure pipe line, because gas flows through at a high speed, pipeline wind song can be caused; For not dehydrating for gas pipeline, pad is drenched in gas humidity conference, affects the sealing of flange.Flange gasket and the concentric significance of flange hole as can be seen here.
Summary of the invention
The present invention provides a kind of and can make flange gasket and the concentric flange gasket of flange hole and determine flange gasket and the concentric method of flange hole for solving in known technology the technical problem that exists.
The technological scheme that the present invention takes for the technical problem existed in solution known technology is:
Determine flange gasket and the concentric method of flange hole, comprise the steps:
1) fasten fine rule in the location aperture in each shim body, reserve buttock line, when the length of buttock line is stretching, grow flange;
2) fixing bolt of mounting flange, reserves one or two bolt hole not construction bolt, to put into shim body;
3) shim body is put into flange from the fixed hole reserved;
4) buttock line is placed between nearest two adjacent bolts hole;
5) residue bolt is installed, leaves the in-plane rotary moveable surplus of shim body;
6) stretching all buttock lines, and rotate, shim body is rotated, until every bar buttock line encounters flange bolt the same side; simultaneously
7) adjust the angle of buttock line, make every bar buttock line vertical with its place flange tangent direction;
8) current location is fastening.
Circumferentially with the location aperture that the pad center of circle is corresponding with the bolt hole of flange for symmetry center is provided with in described shim body.
The advantage that the present invention has and good effect are:
The present invention is simple to operate, fine rule sectional area little Yi deformation, and shim body matter is soft in addition, confine through bolt, fine rule deformation in inserted shim, thickness can be ignored, flange sealing can be ensured, utilize round diameter must cross the principle in the center of circle, can make shim body and flange concentric.
Accompanying drawing explanation
Fig. 1 is 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. locates aperture, 3. flange, 4. flange hole, 5. buttock line, 6. bolt hole.
Embodiment
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Shown in Figure 1, a kind of flange gasket, comprises shim body 1, in shim body 1 circumferentially with the pad center of circle for symmetry center is provided with the location aperture 2 corresponding with the bolt hole 6 of flange 3.
Such as can for square four bolt flanges, in traditional circular gasket, horizontal vertical is each makes a call to two location apertures 2, and locates aperture 2 between two for the center of circle is symmetrical.
Determine flange gasket and the concentric method of flange hole, see Fig. 2, comprise the steps:
1) fasten fine rule in the location aperture 2 in each shim body 1, reserve buttock line 5, when the length of buttock line 5 is stretching, grow flange 3;
2) fixing bolt of mounting flange 3, reserves one or two bolt hole 6 not construction bolt, to put into shim body 1;
3) shim body 1 is put into flange 3 from the fixed hole reserved;
4) pad buttock line 5 is placed between nearest two adjacent bolts hole 6;
5) residue bolt is installed, is sure not clamping bolt, the in-plane rotary moveable surplus of shim body 1 be left;
6) stretching all buttock lines 5, and rotate, shim body 1 is rotated, until every bar buttock line 5 encounters flange bolt the same side; simultaneously
7) adjust the angle of buttock line 5, make every bar buttock line 5 vertical with its place flange tangent direction;
8) current location is fastening.
Remaining buttock line 5, without the need to process, just by fine rule volume asphyxia by external pressure on the chest and abdomen in flange confinement process, can not affect the sealing of flange.
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, must cross the center of circle for often pair with the bolt hole line of center of circle symmetry.Some with some location aperture (corresponding with flange fixed hole) of same center of circle symmetry due in flange body, when symmetrical buttock line is stretching, just define the straight line that is crossed the shim body center of circle, and the line of two buttock lines and bolt intersection point also crosses the center of circle of flange hole 4, so just make two centers of circle point-blank, just to determine two circles by another to symmetrical buttock line (in like manner) concentric.
The present invention is simple to operate, fine rule sectional area little Yi deformation, and shim body matter is soft in addition, confine through bolt, fine rule deformation in inserted shim, thickness can be ignored, flange sealing can be ensured, 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 is also not limited only to above-mentioned citing, and the change 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. determine flange gasket and the concentric method of flange hole, it is characterized in that, comprise the steps:
1) fasten fine rule in the location aperture (2) in each shim body (1), reserve buttock line (5), when the length of buttock line (5) is stretching, grow flange (3);
2) fixing bolt of mounting flange (3), reserves one or two bolt hole (6) not construction bolt, to put into shim body (1);
3) shim body (1) is put into flange (3) from the fixed hole reserved;
4) buttock line (5) is placed between nearest two adjacent bolts hole (6);
5) residue bolt is installed, leaves the in-plane rotary moveable surplus of shim body (1);
6) stretching all buttock lines (5), and rotate, shim body (1) is rotated, until every bar buttock line (5) encounters flange bolt the same side; simultaneously
7) adjust the angle of buttock line (5), make every bar buttock line (5) vertical with its place flange tangent direction;
8) current location is fastening.
2. according to claim 1ly determine flange gasket and the concentric method of flange hole, it is characterized in that, circumferentially with the location aperture (2) that the pad center of circle is corresponding with the bolt hole of flange (3) (6) for symmetry center is provided with in described shim body (1).
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 CN103438304A (en) | 2013-12-11 |
| CN103438304B true 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 |
|---|---|
| CN (1) | CN103438304B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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 |
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| Publication number | Publication date |
|---|---|
| CN103438304A (en) | 2013-12-11 |
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