CN212430075U - Plastic-lined steel pipe sealing connection structure - Google Patents
Plastic-lined steel pipe sealing connection structure Download PDFInfo
- Publication number
- CN212430075U CN212430075U CN202020599845.8U CN202020599845U CN212430075U CN 212430075 U CN212430075 U CN 212430075U CN 202020599845 U CN202020599845 U CN 202020599845U CN 212430075 U CN212430075 U CN 212430075U
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- China
- Prior art keywords
- steel pipe
- flange
- plastic
- face
- moulded
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- Expired - Fee Related
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Abstract
The utility model discloses a steel pipe sealing connection structure is moulded to lining relates to the pipeline structure field, including the steel pipe, the flange has been welded respectively at the steel pipe both ends, steel pipe inner wall hot melt crimping has the inner liner to mould, the inner liner is moulded outside extension and is pasted and lean on the flange face, set up flutedly on the flange face, the inner liner is moulded and is passed through hot melt crimping between the flange face. The utility model discloses a mould the inside lining and turn over the flange and seal on face, form the flange seal face and cover and mould the layer, set up the recess simultaneously on the flange for the inside lining after the hot melt crimping is moulded and is formed the inside lining on the flange face and mould fixed knot and construct, can prevent effectively that the inside lining from moulding and the steel pipe between peel off, can prevent effectively that the pipeline from when carrying corrosive medium, the pipe connection department is damaged by corrosive medium.
Description
Technical Field
The utility model relates to a pipeline structure field, in particular to steel pipe sealing connection structure is moulded to lining.
Background
The lining plastic composite steel pipe is characterized in that a plastic substrate is lined on the inner side of the steel pipe by adopting a tight lining composite process, so that a conveying medium in the pipe is isolated from the environment outside the pipe and is not corroded by the medium and environmental factors, and the service life of the pipeline is prolonged.
In the use, because long-time practicality, the junction of pipeline is through rivers washing away repeatedly, makes the inside lining mould the condition of taking place partial separation between pipe and the steel pipe easily, leads to pipeline tip part fracture, influences pipeline life.
SUMMERY OF THE UTILITY MODEL
The utility model provides a steel pipe sealing connection structure is moulded to lining solves the steel pipe and the inside lining of current pipe connection department and moulds the problem of easy separation.
In order to solve the technical problem, the utility model discloses a technical scheme does:
the utility model provides a steel pipe sealing connection structure is moulded to lining, includes the steel pipe, the flange has been welded respectively at the steel pipe both ends, steel pipe inner wall hot melt crimping has the lining to mould, the lining is moulded and is outwards extended to paste and lean on the flange face, set up flutedly on the flange face, the lining is moulded and is passed through hot melt crimping between the flange face.
Preferably, the two ends of the steel pipe are provided with concave ring parts, and the concave ring parts are formed by integrally pressing grooves on the steel pipe.
Preferably, a sealing gasket is arranged between the connecting flanges of the two plastic-lined steel pipes.
Preferably, the sealing washer is made of rubber.
Preferably, the flange is coated with polyurethane anticorrosive paint.
Adopt above-mentioned technical scheme, the utility model discloses a mould the inside lining and turn over the flange seal face on, form the flange seal face and cover and mould the layer, set up the recess on the flange simultaneously for the inside lining after the hot melt crimping is moulded and is formed the inside lining on the flange face and mould fixed knot and construct, can prevent effectively that the inside lining from moulding and the steel pipe between peel off, can prevent effectively that the pipeline is when carrying corrosive medium that the pipe connection department is damaged by corrosive medium.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1-steel pipe, 2-lining plastic, 3-flange, 4-sealing washer, 5-groove and 6-concave ring part.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in figure 1, a lining plastic steel pipe sealing connection structure, including steel pipe 1, flange 3 has been welded respectively at steel pipe 1 both ends, 1 inner wall hot melt crimping of steel pipe has the inside lining to mould 2, the inside lining is moulded 2 and is outwards extended and paste and lean on flange 3 face, set up fluted 5 on the flange 3 face, mould 2 and flange 3 between the face through hot melt crimping in the inside lining, mould 2 infiltration flange 3 recess 5 on the face in the hot melt crimping in-process inside lining, wait to form firm inseparable inside lining after the cooling solidifies and mould fixed knot and construct, can prevent effectively that the inside lining from moulding 2 and steel pipe 1 between peeling off.
The utility model discloses a mould the inside lining 2 turn-ups to the flange seal face on, form the flange seal face and cover and mould the layer, set up recess 5 on flange 3 simultaneously for the inside lining after the hot melt crimping is moulded 2 and is formed the inside lining and mould fixed knot structure on 3 faces of flange, can prevent effectively that the inside lining from moulding 2 and steel pipe 1 between peeling off, can prevent effectively that the pipeline is when carrying corrosive medium that the pipe connection department is damaged by corrosive medium.
In order to further promote the connection compactness between 2 is moulded to steel pipe 1 and inside lining, 1 both ends of steel pipe are equipped with concave ring portion 6, and concave ring portion 6 is the shaping of 1 whole indent of steel pipe, sets up concave ring portion 6 and can mould 2 and the in-process of 1 hot melt crimping of steel pipe at the inside lining, treats that the inside lining is moulded 2 and can play effective fixed protruding structure to 2 inside formation inside the steel pipe after cooling, further promotes the steel pipe 1 and moulds the connection compactness between 2 with the inside lining.
In order to further improve the sealing performance after the two plastic-lined steel pipes are connected through the flanges 3, a sealing gasket 4 is arranged between the connected flanges 3 of the two plastic-lined steel pipes, so that the two flanges 3 are prevented from leaking due to untight connection.
Specifically, seal ring 4 is the rubber material, can have when playing effective sealing effect, can guarantee effectual intensity, can not cause the damage because of the too high extrusion of joint strength between two flanges 3, and low cost, and the raw materials source is wide.
In order to ensure the corrosion resistance of the pipeline joint, the flange 3 is coated with polyurethane anticorrosive paint, so that the metal surface of the flange 3 can be prevented from directly contacting with the surrounding environment or a transmission medium to cause corrosion, and the service life of the plastic-lined steel pipe is further prolonged.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
Claims (5)
1. The utility model provides a lining plastic steel pipe sealing connection structure which characterized in that: including steel pipe (1), flange (3) have been welded respectively at steel pipe (1) both ends, steel pipe (1) inner wall hot melt crimping has the liner to mould (2), the liner is moulded (2) and is outwards extended to paste and lean on flange (3) face, set up fluted (5) on flange (3) face, the liner is moulded (2) and is passed through hot melt crimping between flange (3) face.
2. The plastic-lined steel pipe sealing connection structure as claimed in claim 1, wherein: the steel pipe is characterized in that concave ring parts (6) are arranged at two ends of the steel pipe (1), and the concave ring parts (6) are formed by integrally pressing grooves on the steel pipe (1).
3. The plastic-lined steel pipe sealing connection structure as claimed in claim 1, wherein: and a sealing gasket (4) is arranged between the connecting flanges (3) of the two plastic-lined steel pipes.
4. The plastic-lined steel pipe sealing connection structure as claimed in claim 3, wherein: the sealing washer (4) is made of rubber.
5. The plastic-lined steel pipe sealing connection structure as claimed in claim 1, wherein: and polyurethane anticorrosive paint is coated on the flange (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020599845.8U CN212430075U (en) | 2020-04-20 | 2020-04-20 | Plastic-lined steel pipe sealing connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020599845.8U CN212430075U (en) | 2020-04-20 | 2020-04-20 | Plastic-lined steel pipe sealing connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212430075U true CN212430075U (en) | 2021-01-29 |
Family
ID=74293229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020599845.8U Expired - Fee Related CN212430075U (en) | 2020-04-20 | 2020-04-20 | Plastic-lined steel pipe sealing connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212430075U (en) |
-
2020
- 2020-04-20 CN CN202020599845.8U patent/CN212430075U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |