CN104089117A - Welding neck lined flange - Google Patents
Welding neck lined flange Download PDFInfo
- Publication number
- CN104089117A CN104089117A CN201410314457.XA CN201410314457A CN104089117A CN 104089117 A CN104089117 A CN 104089117A CN 201410314457 A CN201410314457 A CN 201410314457A CN 104089117 A CN104089117 A CN 104089117A
- Authority
- CN
- China
- Prior art keywords
- flange
- neck
- hole
- grommet
- chassis
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 15
- 239000010935 stainless steel Substances 0.000 abstract description 12
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 12
- 238000005260 corrosion Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 210000001503 Joints Anatomy 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 229910000975 Carbon steel Inorganic materials 0.000 description 4
- 239000010962 carbon steel Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
- F16L23/026—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes by welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
Abstract
The invention relates to a welding neck lined flange which is characterized by a flange structure. The welding neck lined flange comprises a flange base plate and a neck platform arranged on one side of the flange base plate. A flow guiding through hole is formed in the flange base plate and the neck platform. A plurality of bolt through holes are formed in the radial face of the flange base plate. The neck platform and a connection tube are installed and welded after butt joint. The welding neck lined flange is characterized in that a liner tube is arranged in the flow guiding through hole, the inner end of the liner tube and the inner wall of a pipe cavity of the connection pipe are installed and welded, a liner ring is arranged on the side, opposite to the neck platform, of the flange base plate, the inner ring of the liner ring is welded to the outer end of the liner tube and the inner surface of the flow guiding through hole in a sealed mode, the outer ring of the liner ring is fixedly welded to the flange base plate. According to the welding neck lined flange, the connection tube, the liner tube and the liner ring can be made of a stainless steel material or other materials which are resistant to corrosion. The welding neck lined flange is simple in structure, easy to manufacture and low in cost.
Description
Technical field
The present invention relates to the flange connect dish taking flange arrangement as feature, especially a kind of band neck butt welding lined flange.
Background technique
Flange is widely used in the industries such as container, boiler, pipeline, by pad and fastening piece, pipe is coupled together.Form of flanges is a lot, and stressed best structure is band neck welding neckflange, and application area is the widest, is used in particular for the occasion that medium toxicity is large, corrosivity is strong.In these occasions, the flange of carbon steel material often can not use, and can only use the corrosion resistance can better material, as stainless steel.And stainless steel material price is higher, if flange all adopts stainless steel to make, cost is higher.
Summary of the invention
All adopt the material of corrosion resistance to have the deficiency that cost is high in order to overcome flange in prior art, the invention provides a kind of simple in structure, reasonable in design, easy to manufacture, band neck butt welding lined flange that cost is low.
The technological scheme that the present invention solves its technical problem employing is: a kind of band neck butt welding lined flange, it comprises integrated flange chassis and neck platform, described neck platform is located at a side on flange chassis, offer a water conservancy diversion through hole at He Jingtai center, flange chassis, on the sagittal plane on flange chassis, offer several bolt holes, and the center of circle of described bolt hole is evenly distributed on center taking flange chassis on the same circumference in the center of circle, described neck platform and one is taken over and is docked assembly welding, it is characterized in that: in described water conservancy diversion through hole, be provided with a bushing pipe, the lumen wall assembly welding of the inner end of this bushing pipe and described adapter, a side at the relative neck platform in flange chassis is provided with a grommet, the outer end of the inner ring of this grommet and described bushing pipe, the internal surface seal welding of water conservancy diversion through hole, the outer ring of described grommet and flange chassis are welded and fixed.
On the circumferential surface on the flange chassis between adjacent two bolts hole, offer the leak hunting aperture that is communicated with bushing pipe outer surface, grommet interior edge face.
The exterior edge face of described grommet is sealing surface, and its Roughness Surface on Control is Ra6.3-3.2.
In technique scheme, flange chassis and neck platform material selection carbon steel, ensured the strength and stiffness of flange; Adapter material is stainless steel, and bushing pipe, grommet adopt stainless steel or other corrosion-resistant materials, as nickel or copper, have ensured decay resistance.Adopt compared with stainless steel makes with flange entirety, the present invention is simple in structure, reasonable in design, easy to manufacture, greatly reduce cost.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention will be further described.
Fig. 1 is a kind of structural representation of the present invention.
Mark in figure: 1. take over 2. neck platform, 3. flange chassis, 4. bolt hole, 5. bushing pipe, 6. water conservancy diversion through hole, 7. grommet, 8. leak hunting aperture.
Embodiment
In Fig. 1, a kind of band neck butt welding lined flange, it comprises flange chassis 3 and neck platform 2.As shown in Figure 1, neck platform 2 is located at a side on flange chassis 3, and flange chassis 3 and neck platform 2 adopt carbon steel material one-body molded, have ensured the strength and stiffness of flange.
Offer a water conservancy diversion through hole 6 at the center of flange chassis 3 and neck platform 2.On the sagittal plane of .3 at the bottom of flange, offer several bolt holes 4, the center of circle of bolt hole 4 is evenly distributed on center taking flange chassis 3 on the same circumference in the center of circle.
In Fig. 1, neck platform 1 and is taken over 1 and is docked assembly welding, and taking over 1 material is stainless steel.
As shown in Figure 1, be provided with a bushing pipe 5 in water conservancy diversion through hole 6, bushing pipe 5 adopts other corrosion-resistant materials such as stainless steel or nickel or copper.The inner end of bushing pipe 5 and the lumen wall assembly welding of taking over 1.
In Fig. 1, be provided with a grommet 7 in a side of flange chassis 3 relative neck platforms 2, same stainless steel or other the corrosion-resistant materials such as nickel or copper of adopting of bushing pipe 5.The outer end of the inner ring of grommet 7 and bushing pipe 5, the internal surface three seal welding of water conservancy diversion through hole 6, the outer ring of grommet 7 and flange chassis 3 are welded and fixed.
For the sealing situation between air or control flange chassis 3 and grommet 7, water conservancy diversion through hole 6 and bushing pipe 5 in the gap between drain flange chassis 3 and grommet 7, water conservancy diversion through hole 6 and bushing pipe 5, as shown in fig. 1, on the circumferential surface on the flange chassis 3 between adjacent two bolts hole 4, offer the leak hunting aperture 8 that is communicated with bushing pipe 5 outer surfaces, grommet 7 interior edge faces.In manufacturing process, leak hunting aperture 8 is offered before can not arranging in water conservancy diversion through hole 6, on bushing pipe 5, flange chassis 3, grommet 7 not being set.
After welding job completes, fine finishing is carried out in the exterior edge face of grommet 3, with as sealing surface, its Roughness Surface on Control is Ra6.3-3.2.
Flange of the present invention chassis and neck platform material selection carbon steel, adapter, bushing pipe, grommet adopt stainless steel or other corrosion-resistant materials, compared with making, greatly reduce cost with flange entirety employing stainless steel, and increase decay resistance, ensure the strength and stiffness of flange.
Claims (3)
1. a band neck butt welding lined flange, it comprises integrated flange chassis and neck platform, described neck platform is located at a side on flange chassis, offer a water conservancy diversion through hole at He Jingtai center, flange chassis, on the sagittal plane on flange chassis, offer several bolt holes, and the center of circle of described bolt hole is evenly distributed on center taking flange chassis on the same circumference in the center of circle, described neck platform and one is taken over and is docked assembly welding, it is characterized in that: in described water conservancy diversion through hole, be provided with a bushing pipe, the lumen wall assembly welding of the inner end of this bushing pipe and described adapter, a side at the relative neck platform in flange chassis is provided with a grommet, the outer end of the inner ring of this grommet and described bushing pipe, the internal surface seal welding of water conservancy diversion through hole, the outer ring of described grommet and flange chassis are welded and fixed.
2. a kind of band neck butt welding lined flange according to claim 1, is characterized in that: on the circumferential surface on the flange chassis between adjacent two bolts hole, offer the leak hunting aperture that is communicated with bushing pipe outer surface, grommet interior edge face.
3. a kind of band neck butt welding lined flange according to claim 1, is characterized in that: the exterior edge face of described grommet is sealing surface, and its Roughness Surface on Control is Ra6.3-3.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410314457.XA CN104089117A (en) | 2014-07-04 | 2014-07-04 | Welding neck lined flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410314457.XA CN104089117A (en) | 2014-07-04 | 2014-07-04 | Welding neck lined flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104089117A true CN104089117A (en) | 2014-10-08 |
Family
ID=51636859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410314457.XA Pending CN104089117A (en) | 2014-07-04 | 2014-07-04 | Welding neck lined flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104089117A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133934A (en) * | 2015-09-01 | 2015-12-09 | 王竹檀 | Novel intelligent antitheft lock overload protector |
| CN106224666A (en) * | 2016-08-30 | 2016-12-14 | 无锡神意环件法兰有限公司 | Torticollis type W.N flange |
| CN111336331A (en) * | 2020-03-13 | 2020-06-26 | 上海外高桥造船有限公司 | L-shaped leaning and welding flange |
| CN111571138A (en) * | 2020-05-22 | 2020-08-25 | 中船澄西扬州船舶有限公司 | Pipe comparison method for welding neck flange |
-
2014
- 2014-07-04 CN CN201410314457.XA patent/CN104089117A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133934A (en) * | 2015-09-01 | 2015-12-09 | 王竹檀 | Novel intelligent antitheft lock overload protector |
| CN106224666A (en) * | 2016-08-30 | 2016-12-14 | 无锡神意环件法兰有限公司 | Torticollis type W.N flange |
| CN111336331A (en) * | 2020-03-13 | 2020-06-26 | 上海外高桥造船有限公司 | L-shaped leaning and welding flange |
| CN111571138A (en) * | 2020-05-22 | 2020-08-25 | 中船澄西扬州船舶有限公司 | Pipe comparison method for welding neck flange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141008 |
|
| WD01 | Invention patent application deemed withdrawn after publication |