CN202972279U - Loosening and looping flange with welding neck rings for mortise sealing surfaces - Google Patents
Loosening and looping flange with welding neck rings for mortise sealing surfaces Download PDFInfo
- Publication number
- CN202972279U CN202972279U CN 201220717467 CN201220717467U CN202972279U CN 202972279 U CN202972279 U CN 202972279U CN 201220717467 CN201220717467 CN 201220717467 CN 201220717467 U CN201220717467 U CN 201220717467U CN 202972279 U CN202972279 U CN 202972279U
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- Prior art keywords
- flange
- neck
- welding
- welding neck
- groove
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- Expired - Lifetime
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Abstract
The utility model relates to a loosening and looping flange with welding neck rings for the mortise sealing surfaces. The loosening and looping flange comprises a pair of welding neck rings and two flange discs, wherein the two flange discs are respectively movably sleeved on the two welding neck rings. A tongue surface and a groove surface matched with the tongue surface are respectively arranged on an abutted surface of the two welding neck rings, and a sealing washer is arranged between the tongue surface and the groove surface. The flange is sealed by the mortise sealing surfaces, and is applicable to places with combustible, explosive and toxic media, high in rigidity and applicable to high-pressure and high-temperature places. The flange discs are sleeved on the welding neck rings, the flange discs can freely rotate, bolt holes of the flange are easy to align, and mounting, demounting, cleaning and inspection of pipelines are facilitated.
Description
Technical field
The utility model relates to a kind of flange, and is a kind of for tongue and groove seal contact face band neck welding neck collar lap joint flange specifically.
Background technique
Flange is to make pipe and the interconnective part of pipe, generally is connected in pipe end.Usually all be provided with eyelet on flange, adopt bolt to see through eyelet and make two flanges tight, usually also be provided with pad and seal between two flanges.The circuit of present petrochemical pipe has advantages of that circuit is long, diameter is large, again due to the impact of pipeline hand field position and installing space, often have in one road pipeline several bolts hole to flange can not over against, bolt is worn in impact, cause pipe fitting normally not connect, the impact construction.In engineering, flange connects slightly has flaw will cause leakage, even produces security incident.Particularly on High Temperature High Pressure pipeline and heavy-caliber pipeline, selected flange and sealing surface form just seem particularly important.
The model utility content
Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, provides a kind of for tongue and groove seal contact face band neck welding neck collar lap joint flange, has good seal performance, characteristics that rigidity is strong, is applicable to all higher occasions of pressure and temperature.
In order to solve above technical problem, it is a kind of for tongue and groove seal contact face band neck welding neck collar lap joint flange that the utility model provides, comprise a pair of band neck welding neck collar and two flange plate, described flange plate is actively socketed on respectively on two band neck welding neck collars, the groove face that is respectively equipped with the tenon face and coordinates with described tenon face on described two interfaces with the neck welding neck collar is provided with seal washer between described tenon face and groove face.
The technological scheme that the utility model further limits is: aforesaid for tongue and groove seal contact face band neck welding neck collar lap joint flange, described band neck welding neck collar and pipeline connecting end are provided with bevel for welding.
Aforesaid for tongue and groove seal contact face band neck welding neck collar lap joint flange, described seal washer is rubber ring or teflon circle.
Further, aforesaid for tongue and groove seal contact face band neck welding neck collar lap joint flange, described flange plate is provided with the chamfering groove with the described interior ring that contacts with the neck welding neck collar.
The beneficial effects of the utility model are: flange seal of the present utility model adopts tongue and groove seal contact face, be applicable to occasion inflammable, explosive poisonous medium, simultaneously because band neck welding neck collar flange rigidity is large, be applicable to the occasion of high pressure-temperature, flange plate is owing to being socketed on band neck welding neck collar, can realize rotating freely, be easy to the bolt hole of flange is aimed at, inspection is cleaned in the installation and removal of being convenient to pipeline.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
What the present embodiment provided is a kind of for tongue and groove seal contact face band neck welding neck collar lap joint flange, structure as shown in Figure 1, comprise a pair of band neck welding neck collar 1,1 ' and two flange plate 2,2 ', flange plate is actively socketed on respectively on two band neck welding neck collars, the groove face 4 that is respectively equipped with tenon face 3 and coordinates with the tenon face on two band neck welding neck collars 1,1 ' interface, be provided with rubber gasket between tenon face and groove face, band neck welding neck collar and pipeline connecting end are provided with bevel for welding 5, and flange plate is provided with the chamfering groove with the interior ring that contacts with the neck welding neck collar.
The present embodiment when mounted, between two band neck welding neck collars, rubber seal is set, then with two tenon groove structure docking with the neck welding neck collar, by be screwed into bolt and nut on flange plate, realize fastening between flange, be with on the neck welding neck collar because flange is socketed in, fastening between flange can realize two fastening with between the neck welding neck collar.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (4)
1. be used for tongue and groove seal contact face band neck welding neck collar lap joint flange, comprise a pair of band neck welding neck collar and two flange plate, it is characterized in that: described flange plate is actively socketed on respectively on two band neck welding neck collars, the groove face that is respectively equipped with the tenon face and coordinates with described tenon face on described two interfaces with the neck welding neck collar is provided with seal washer between described tenon face and groove face.
2. as claimed in claim 1 for tongue and groove seal contact face band neck welding neck collar lap joint flange, it is characterized in that: described band neck welding neck collar and pipeline connecting end are provided with bevel for welding.
3. as claimed in claim 1 for tongue and groove seal contact face band neck welding neck collar lap joint flange, it is characterized in that: described seal washer is rubber ring or teflon circle.
4. as claimed in claim 1 for tongue and groove seal contact face band neck welding neck collar lap joint flange, it is characterized in that: described flange plate is provided with the chamfering groove with the described interior ring that contacts with the neck welding neck collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717467 CN202972279U (en) | 2012-12-21 | 2012-12-21 | Loosening and looping flange with welding neck rings for mortise sealing surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717467 CN202972279U (en) | 2012-12-21 | 2012-12-21 | Loosening and looping flange with welding neck rings for mortise sealing surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202972279U true CN202972279U (en) | 2013-06-05 |
Family
ID=48513354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220717467 Expired - Lifetime CN202972279U (en) | 2012-12-21 | 2012-12-21 | Loosening and looping flange with welding neck rings for mortise sealing surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202972279U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557383A (en) * | 2013-10-23 | 2014-02-05 | 昆山邦琪盛电子材料有限公司 | Pipe clamping head |
| CN107940141A (en) * | 2017-12-28 | 2018-04-20 | 江阴中南重工有限公司 | High-pressure rotary flange |
| CN108019573A (en) * | 2017-12-30 | 2018-05-11 | 海门市设备安装工程有限公司 | Metal tube connection structure and attaching method thereof |
| CN112377689A (en) * | 2020-11-09 | 2021-02-19 | 江阴犇源精密零部件制造有限公司 | Novel loose flange |
-
2012
- 2012-12-21 CN CN 201220717467 patent/CN202972279U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557383A (en) * | 2013-10-23 | 2014-02-05 | 昆山邦琪盛电子材料有限公司 | Pipe clamping head |
| CN107940141A (en) * | 2017-12-28 | 2018-04-20 | 江阴中南重工有限公司 | High-pressure rotary flange |
| CN108019573A (en) * | 2017-12-30 | 2018-05-11 | 海门市设备安装工程有限公司 | Metal tube connection structure and attaching method thereof |
| CN112377689A (en) * | 2020-11-09 | 2021-02-19 | 江阴犇源精密零部件制造有限公司 | Novel loose flange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |