CN204004387U - A kind of flange arrangement with welded seal - Google Patents
A kind of flange arrangement with welded seal Download PDFInfo
- Publication number
- CN204004387U CN204004387U CN201420409238.5U CN201420409238U CN204004387U CN 204004387 U CN204004387 U CN 204004387U CN 201420409238 U CN201420409238 U CN 201420409238U CN 204004387 U CN204004387 U CN 204004387U
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- flange
- metal covering
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- welding
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Abstract
The utility model is a kind of flange arrangement with welded seal, this flange arrangement adopted double sealing circle with together with the three seals Redundancy Design of metal covering (3) welded seal, comprise lower flange (1), upper flange plate (2), metal covering (3), inner seal ring (4), exterior seal ring (5), fastener assembly (6); Wherein inside metal covering, outside welding edge (3-1), metal covering, welding edge (3-2) welds with upper flange plate welding edge (2-1), lower flange welding edge (1-2) respectively, the length of welding zone in the vertical direction is less than welding edge length, is controlled in 5mm; When this flange arrangement dismounting, welding edge, at vertical direction excision 7～8mm, can be taken off to metal covering (3); While again installation, need to carry out repair to welding edge length.A kind of flange arrangement that adopts double sealing circle to add one metal covering welded seal that the utility model provides, had both improved sealing effect and structural reliability, can repeat again dismounting.
Description
Technical field
The utility model relates to a kind of sealing configuration, is specifically related to a kind of flange arrangement with welded seal.
Background technique
In known technical field, flange sealing structure is made up of a pair of flange plate, a seal ring and some harness fasteners conventionally, and seal ring is placed in the seal groove of flange plate, after fastening piece is tightened, seal ring stress deformation also fills up seal groove space, thereby the sealing of flange plate surface of contact is not revealed.This flange sealing structure only adopts a seal ring to seal, and because the factors such as interior media burn into thermal environment are damaged, causes flange arrangement to leak once seal ring.
A kind of flange arrangement that adopts two pass metal o-ring of the inventions such as widespread election Yu, the flange arrangement of comparing above-mentioned employing single track seal ring has had significant improvement, utilize the Redundancy Design of seal ring to reduce integral leakage, in the time that one of them seal ring damages, another seal ring still can reach sealing effect.But this sealing configuration is still confined to the structural type of seal ring, in the time that flange arrangement is larger, the machining accuracy of metal o-ring and seal groove is difficult to guarantee, and sealing effect will decline, if change sealing ring material into rubber material, there is equally interior media corrosion leakage problem.
A kind of welded seal flange of Xue side of biography invention adopts welding to replace seal ring to realize flange seal, this structure reaches flange seal by the sealing of weld seam completely, butt welded seam quality requirement is higher, once and weld seam damages, can cause flange arrangement to leak, weld non-dismountable and repeat to assemble once the larger shortcoming of another one is this structure.
Summary of the invention
model utility object
The purpose of this utility model is to provide a kind ofly not only can ensure good sealing effect, but also can realize the flange sealing structure of repetition dismounting.
technological scheme
For achieving the above object, the utility model adopts a kind of flange arrangement with welded seal, comprises lower flange, upper flange plate, many harness fasteners assembly, inner seal ring, exterior seal ring, metal covering; On the surface of contact of one of them flange plate, be provided with double sealing groove, inner seal ring, exterior seal ring are arranged on respectively in seal groove; Metal covering and lower flange and upper flange plate welded seal.
The whole periphery of described lower flange is provided with the lower flange welding edge stretching out straight up; Described upper flange plate comprises: the integrated disc portions at center and peripheral horizontal circular ring part, be provided with in the whole inside edge of upper flange plate annulus part the upper flange plate welding edge stretching out straight up; From cross section, lower flange welding edge, upper flange plate welding edge, form " U " die cavity body with upper flange plate annulus part; The cross section of described metal covering is " U " type, and metal covering is put into described " U " die cavity body, and inside metal covering outside welding edge, metal covering welding edge respectively with the welding of upper flange plate welding edge, lower flange welding edge; Welding zone is arranged at top, and the length on welding zone vertical direction is less than welding edge length.
The length of the welding zone in the vertical direction of described metal covering and lower flange and upper flange plate is less than or equal to 5mm.
Described double sealing groove is arranged on the upper-end surface of lower flange.
Described inner seal ring and exterior seal ring are all nonmetallic material or metallic material; Or one of them is nonmetallic material, another is metallic material.
beneficial effect
Flange sealing structure described in the utility model has adopted double sealing circle to add the design of metal covering welded seal.The pretightening force that two flange plate provide by fastener assembly is pressed on two seal rings on sealing surface, plays main seal action; Two welding edges of metal covering are welded to respectively on the welding edge of two flange plate, play auxiliary seal effect.So, flange sealing structure described in the utility model realized double sealing circle with together with the three seals Redundancy Design of metal covering welded seal, any sealing effect that all can meet the requirements of together in double sealing circle, in the time that two seals circle all damages, interior media can leak in metal covering, only have in the time that metal covering also damages and just can leak, thereby ensured good sealing effect.
In flange sealing structure described in the utility model, the welding edge in the vertical direction that two flange plate stretch out has certain length, and when welding, the length of welding zone is less than the length of welding edge, while needing to dismantle, welding zone can be excised after welding; While again assembling, change as required metal covering, and adjust metal covering welding edge length, thereby meet the demand of installing.
When pressurized container very strict and while requiring to possess repetition dismounting ability to the seal request of flange, adopt traditional seal ring flange arrangement or the simple equal difficulty of welded seal flange arrangement to meet Structural Design Requirement, a kind of flange arrangement that adopts double sealing circle to add one metal covering welded seal that the utility model provides, both improve sealing effect and structural reliability, can repeat again dismounting.
In flange sealing structure described in the utility model, two seals circle can be nonmetallic material, metallic material simultaneously; Also can one be nonmetallic material, one is metallic material.Owing to having adopted the sealing configuration of redundancy, so the material of two seals circle selects to have larger degrees of freedom, can select flexibly according to the type of concrete real-world environment and sealed interior media.
Brief description of the drawings
Fig. 1 is flange sealing structure erection drawing described in the utility model.
Fig. 2 is the partial enlarged drawing at A place in Fig. 1.
Wherein, 1, lower flange, 2, upper flange plate, 3, metal covering, 4, inner seal ring, 5, exterior seal ring, 6, fastener assembly, 1-1, container weld, 1-2, lower flange welding edge, 2-1, upper flange plate welding edge, welding edge inside 3-1, metal covering, welding edge outside 3-2, metal covering, 6-1, double-screw bolt, 6-2, pad, 6-3, nut.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
As shown in Figure 1, the utility model provides a kind of flange arrangement with welded seal, for container is sealed, comprises lower flange 1, upper flange plate 2, metal covering 3, inner seal ring 4, exterior seal ring 5, fastener assembly 6;
As shown in Figure 2, the whole periphery of lower flange 1 is provided with the horizontally outward container weld 1-1 of projection, for welding with container inner wall or container upper end; The whole periphery of lower flange 1 is also provided with the lower flange welding edge 1-2 stretching out straight up, for welding with metal covering 3; Lower flange 1 inner side, upper-end surface is provided with two seal grooves, for inner seal ring 4 and exterior seal ring 5 are installed; Lower flange 1 upper-end surface, seal groove outer fix, is provided with tapped hole, for the double-screw bolt 6-1 of mounting fastener assembly 6;
As shown in Figure 1, upper flange plate 2 is mainly made up of integrated disc portions and its peripheral horizontal circular ring part at center.As shown in Figure 2, upper flange plate 2 annulus part lower end surfaces and lower flange 1 upper-end surface laminating, and be positioned at lower flange welding edge 1-2 inside; There is the through hole through double-screw bolt 6-1 in upper flange plate 2 annulus parts; Also be provided with in the upper flange plate 2 whole inside edges of annulus part the upper flange plate welding edge 2-1 stretching out straight up, for welding with metal covering 3;
As shown in Figure 2, from cross section, lower flange welding edge 1-2, upper flange plate welding edge 2-1, with formation " U " the die cavity body of upper flange plate 2 annulus parts, and, the cross section of metal covering 3 is " U " type, metal covering 3 is put into described " U " die cavity body, and outside welding edge 3-1, metal covering, welding edge 3-2 is respectively used to weld with upper flange plate welding edge 2-1, lower flange welding edge 1-2 inside metal covering; Welding zone is arranged at top, and length on welding zone vertical direction is less than the whole welding edge length of metal covering 3, so can realize multiple welding and dismounting.
When flange sealing structure described in the utility model is installed, first double-screw bolt 6-1 is respectively installed in the tapped hole on lower flange 1, then inner seal ring 4 and exterior seal ring 5 are arranged on respectively in the seal groove of lower flange 1, afterwards upper flange plate 2 is installed on lower flange 1, then on double-screw bolt 6-1, pad 6-2 is installed, nut 6-3 locks, so, the pretightening force that two flange plate provide by fastener assembly 6 is pressed on two seal rings in seal groove, plays main seal action; Then welding edge 3-2 outside welding edge 3-1, metal covering inside the metal covering of metal covering 3 is welded with upper flange plate welding edge 2-1, lower flange welding edge 1-2 respectively, play auxiliary seal effect.
In order to ensure the sealing effect of seal ring, two seal grooves on lower flange 1 should carry out size and tolerance design according to material, size and the deformability etc. of inner seal ring 4 and exterior seal ring 5.Two seal rings can be nonmetallic material, metallic material simultaneously; Also can one be nonmetallic material, one is metallic material.
In order to ensure that this flange sealing structure possesses the ability that repeatedly repeats dismounting, welding edge length on metal covering 3, lower flange 1 and upper flange plate 2 can design as required, in the time welding, welding zone length is unsuitable long simultaneously, and vertical direction length is controlled in 5mm.
When flange sealing structure dismounting described in the utility model, first metal covering 3 both sides welding edges and lower flange welding edge 1-2, upper flange plate welding edge 2-1 are excised to 7～8mm at vertical direction, take off metal covering 3, then back out fastener nut 6-3 and take off pad 6-2, take off afterwards upper flange plate 2 and can open flange.
In order to ensure the sealing effect of flange arrangement, will again install time, should change inner seal ring 4, exterior seal ring 5 and metal covering 3 after flange arrangement is opened, wherein metal covering 3 both sides welding edge length need to carry out repair according to upper and lower flange plate welding edge length now.
Above embodiment of the present utility model is explained in detail, above-mentioned mode of execution is only optimum embodiment of the present utility model, but the utility model is not limited to above-described embodiment, in the ken possessing those of ordinary skill in the art, can also under the prerequisite that does not depart from the utility model aim, make a variety of changes.
Claims (5)
1. the flange arrangement with welded seal, comprise lower flange (1), upper flange plate (2), many harness fasteners assembly (6), is characterized in that: described flange arrangement also comprises: inner seal ring (4), exterior seal ring (5), metal covering (3); On the surface of contact of one of them flange plate, be provided with double sealing groove, inner seal ring (4), exterior seal ring (5) are arranged on respectively in seal groove; Metal covering (3) and lower flange (1) and upper flange plate (2) welded seal.
2. according to a kind of flange arrangement with welded seal claimed in claim 1, it is characterized in that: the whole periphery of described lower flange (1) is provided with the lower flange welding edge (1-2) stretching out straight up; Described upper flange plate (2) comprising: the integrated disc portions at center and peripheral horizontal circular ring part, be provided with the upper flange plate welding edge (2-1) stretching out straight up in the whole inside edge of upper flange plate (2) annulus part; From cross section, lower flange welding edge (1-2), upper flange plate welding edge (2-1), form " U " die cavity body with upper flange plate (2) annulus part; The cross section of described metal covering (3) is " U " type, metal covering (3) is put into described " U " die cavity body, and inside metal covering outside welding edge (3-1), metal covering welding edge (3-2) respectively with the welding of upper flange plate welding edge (2-1), lower flange welding edge (1-2); Welding zone is arranged at top, and the length on welding zone vertical direction is less than welding edge length.
3. according to a kind of flange arrangement with welded seal claimed in claim 2, it is characterized in that: described metal covering (3) is less than or equal to 5mm with the length of the welding zone in the vertical direction of lower flange (1) and upper flange plate (2).
4. according to a kind of flange arrangement with welded seal claimed in claim 1, it is characterized in that: double sealing groove is arranged on the upper-end surface of lower flange (1).
5. according to a kind of flange arrangement with welded seal claimed in claim 1, it is characterized in that: inner seal ring (4) and exterior seal ring (5) are all nonmetallic material or metallic material; Or one of them is nonmetallic material, another is metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409238.5U CN204004387U (en) | 2014-07-23 | 2014-07-23 | A kind of flange arrangement with welded seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409238.5U CN204004387U (en) | 2014-07-23 | 2014-07-23 | A kind of flange arrangement with welded seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004387U true CN204004387U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420409238.5U Active CN204004387U (en) | 2014-07-23 | 2014-07-23 | A kind of flange arrangement with welded seal |
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| CN (1) | CN204004387U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180339A (en) * | 2018-03-10 | 2018-06-19 | 孙萍 | Double density sealing groove GIS corrugated expansion joint flanges |
| CN108400562A (en) * | 2018-03-10 | 2018-08-14 | 孙萍 | Double density sealing groove three-way body branch cartridge module |
-
2014
- 2014-07-23 CN CN201420409238.5U patent/CN204004387U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180339A (en) * | 2018-03-10 | 2018-06-19 | 孙萍 | Double density sealing groove GIS corrugated expansion joint flanges |
| CN108400562A (en) * | 2018-03-10 | 2018-08-14 | 孙萍 | Double density sealing groove three-way body branch cartridge module |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |