CN215173170U - Electric melting flange connecting device of fiber reinforced composite pipe for coal mine - Google Patents
Electric melting flange connecting device of fiber reinforced composite pipe for coal mine Download PDFInfo
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- CN215173170U CN215173170U CN202120223551.XU CN202120223551U CN215173170U CN 215173170 U CN215173170 U CN 215173170U CN 202120223551 U CN202120223551 U CN 202120223551U CN 215173170 U CN215173170 U CN 215173170U
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Abstract
The utility model discloses an electric melting flange connecting device of a fiber reinforced composite pipe for coal mine, which comprises a mining fiber reinforced polyethylene pipe, wherein an inner lining part is arranged in the end part of the mining fiber reinforced polyethylene pipe, and a flange support outer sleeve used for installing a steel flange plate and fixing the outer end surface of the inner lining part is arranged outside the inner lining part of the mining fiber reinforced polyethylene pipe; the lining part is formed by connecting a cylinder positioned in the mining fiber reinforced polyethylene pipe with a flanging positioned at the end part of the mining fiber reinforced polyethylene pipe; the flange holds in the palm the overcoat including being located the cylinder in mining fibre reinforced polyethylene pipe and the interior backing member turn-ups outside, cylinder medial extremity is equipped with the inside turn-ups that is used for the outer terminal surface of fixed interior backing member, and cylinder outside end is equipped with the flanging, is equipped with the flange support that is used for fixed steel flange dish in the cylinder outside of flanging inboard. The utility model provides a current flange joint complicated, with high costs, unreliable and corrosion resistance poor problem. The utility model discloses simple to operate and with low costs.
Description
Technical Field
The utility model belongs to a flange joint head, concretely relates to electric smelting flange joint device of compound pipe of fibre reinforcement for coal mine.
Background
The pipe used for the water supply and drainage pipe under the coal mine is a common carbon steel pipe, and has the problems of poor corrosion resistance, heavy weight, easy scaling of the inner wall and the like. The plastic-coated steel pipe has the defects that the plastic-coated layer is not resistant to collision and scraping, is easy to age and lose efficacy, and the falling coating blocks a valve and a water pump, so that the system safety is influenced. In order to solve the problems of the pipes in the underground use process of a coal mine, the conventional pipeline is replaced by a fiber reinforced composite pipe suitable for underground water supply and drainage delivery.
The length of each finished pipe of the reinforced composite pipe is not allowed to be longer than 6 meters under the limitation of underground transportation working conditions of a coal mine, and the leakage risk of the joints is increased due to the increase of the number of the joints in the whole pipeline system. It is known that fiber reinforced composite (RTP) pipe joints in the market at present are mostly in an external buckling and pressing end sealing mode suitable for connection types of more than 2.0MPa, that is, end faces of composite pipes are firstly plugged by using plugging rings made of the same material, then metal sleeves are sleeved on the outer walls of the composite pipes, and buckling and pressing are radially performed along the sleeves by using a buckling and pressing machine under the condition that liners are not needed, and the mode is in an external buckling and pressing end sealing mode. Such a joint has the following disadvantages: the end face plugging of the pipe has higher requirements on the precision of operators and equipment, so that the phenomenon of untight plugging is easy to occur, and the whole pipeline can be subjected to water leakage finally; the buckling mode of the joint has higher requirement on the consistency of joint materials, so that uneven buckling and holding force is easily caused, and more importantly, the leakage is caused by sealing failure due to uneven holding force; the processing cost is high, and the material utilization rate is low; the corrosion resistance is poor. Due to the existence of various uncontrollable errors, a lot of inconvenience is caused to practical application and batch production.
Disclosure of Invention
In order to overcome the defect that current flange joint is complicated, with high costs, unreliable and corrosion resistance is poor, the utility model provides a simple to operate and with low costs electric smelting flange connection device of compound pipe of fibre reinforcement for coal mine.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:
an electric melting flange connecting device of a fiber reinforced composite pipe for a coal mine comprises a mining fiber reinforced polyethylene pipe, wherein a lining part is arranged in the end part of the mining fiber reinforced polyethylene pipe, and a flange support outer sleeve used for mounting a steel flange and fixing the outer end face of the lining part is arranged on the outer side of the lining part of the mining fiber reinforced polyethylene pipe; the lining part is formed by connecting a cylinder positioned in the mining fiber reinforced polyethylene pipe with a flanging positioned at the end part of the mining fiber reinforced polyethylene pipe; the flange holds in the palm the overcoat including being located the cylinder in mining fibre reinforced polyethylene pipe and the interior backing member turn-ups outside, cylinder medial extremity is equipped with the inside turn-ups that is used for the outer terminal surface of fixed interior backing member, and cylinder outside end is equipped with the flanging, is equipped with the flange support that is used for fixed steel flange dish in the cylinder outside of flanging inboard.
Furthermore, a steel lining piece is arranged in the center of the inner side of the flange support outer sleeve, the steel lining piece is formed by connecting and flanging a cylinder, and small holes of 2-4mm are formed in the steel lining piece.
Furthermore, a resistance wire for capacitor welding is wound at the position, which is close to the outside of the mining fiber reinforced polyethylene pipe, inside the flange support outer sleeve.
Furthermore, a resistance wire for capacitance welding is wound at the position, close to the inside of the mining fiber reinforced polyethylene pipe, of the outside of the lining piece.
Preferably, the outer sleeve and the inner lining of the flange support are made of mining polyethylene materials, and the steel lining is made of Q235 steel.
The main structure of the utility model is divided into two parts, the first part is a flange support outer sleeve, a special steel lining piece with the thickness of 3mm is added in the middle layer of the outer sleeve, a small hole with the aperture of 2-4mm is processed on the steel lining piece, the main purpose is to ensure that the outer coating piece can be tightly attached to the steel lining piece and the integrity of the outer coating piece in the process of flange support processing injection molding, a resistance wire for supplying electric fusion welding is wound in the outer sleeve, and the part is used as an enhancement layer; the second part is a sealing layer lining part, the part is used as a sealing layer, resistance wires for fusion welding are wound on the outer surface of the lining part, the fiber reinforcement in the middle layer of the reinforced composite pipe is different from the materials of the inner wall and the outer wall of the pipeline, and the resistance wires cannot be completely fused. The concrete size of above structural design is briefly revised according to the change of pipe specification.
The assembling process of the pipe and the joint comprises the following steps: when the joint is assembled with a pipe, the sealing lining part is firstly inserted into the inner wall of the reinforced composite pipe and is completely inserted, then the flange plate is sleeved into the flange support, and is then axially inserted along the outer wall of the pipe, and finally the flange plate is respectively connected with the lining part and the flange support wiring column by using a special electric fusion welding machine for welding, and the smooth and firm pipeline hot melting interface plays roles of leakage resistance and pulling resistance, so that the installation work of one joint is completed.
The utility model has the characteristics of it is following: the sealing performance is excellent, and the processing cost is low; high pressure resistance and long service life; corrosion resistance; the processing technology is mature, the pipe joint is made of thermoplastic plastics with the same material, and the waste product reuse rate is higher in the processing production process, so that the production cost is greatly reduced.
Drawings
The invention will be further described with reference to the accompanying drawings, in which:
FIG. 1 is a cross-sectional view of an electrofusion flange connection for a fiber reinforced composite pipe for a coal mine;
FIG. 2 is a cross-sectional view of a flange bracket shell;
FIG. 3 is a cross-sectional view of the liner;
description of reference numerals: 1. the steel pipe comprises a flange support outer sleeve, 2, a steel lining piece, 3, an inner lining piece, 4, a mining fiber reinforced polyethylene pipe, 5, a resistance wire, 6 and a steel flange plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1 to 3, the electric melting flange connection device for a fiber reinforced composite pipe for a coal mine according to the present embodiment includes a mining fiber reinforced polyethylene pipe 4, a lining member 3 is disposed in an end portion of the mining fiber reinforced polyethylene pipe 4, and a flange support outer sleeve 1 for mounting a steel flange 6 and fixing an outer end surface of the lining member 3 is disposed on an outer side of the lining member 3 of the mining fiber reinforced polyethylene pipe 4; the lining part 3 is formed by connecting a cylindrical body positioned in the mining fiber reinforced polyethylene pipe 4 with a flanging positioned at the end part of the mining fiber reinforced polyethylene pipe 4; the flange holds in palm overcoat 1 is including being located the cylinder in mining fibre reinforced polyethylene pipe 4 and the interior backing member turn-ups outside, cylinder medial extremity is equipped with the inside turn-ups that is used for fixed 3 outer terminal surfaces in the backing member, and cylinder outside end is equipped with the flanging, is equipped with the flange support that is used for fixed steel ring flange 6 in the cylinder outside of flanging inboard.
Furthermore, a resistance wire 5 for capacitance welding is wound at the position, which is close to the outside of the mining fiber reinforced polyethylene pipe, inside the flange support outer sleeve 1.
Further, a resistance wire 5 for capacitance welding is wound on the outer portion of the lining member 3 and the position, close to the inner portion of the mining fiber reinforced polyethylene pipe, in a winding mode.
Preferably, the outer sleeve and the inner lining of the flange support are made of mining polyethylene materials, and the steel lining is made of Q235 steel.
Example 2
As shown in fig. 1 to 3, the electric melting flange connection device for a fiber reinforced composite pipe for a coal mine according to the present embodiment includes a mining fiber reinforced polyethylene pipe 4, a lining member 3 is disposed in an end portion of the mining fiber reinforced polyethylene pipe 4, and a flange support outer sleeve 1 for mounting a steel flange 6 and fixing an outer end surface of the lining member 3 is disposed on an outer side of the lining member 3 of the mining fiber reinforced polyethylene pipe 4; the lining part 3 is formed by connecting a cylindrical body positioned in the mining fiber reinforced polyethylene pipe 4 with a flanging positioned at the end part of the mining fiber reinforced polyethylene pipe 4; the flange holds in palm overcoat 1 is including being located the cylinder in mining fibre reinforced polyethylene pipe 4 and the interior backing member turn-ups outside, cylinder medial extremity is equipped with the inside turn-ups that is used for fixed 3 outer terminal surfaces in the backing member, and cylinder outside end is equipped with the flanging, is equipped with the flange support that is used for fixed steel ring flange 6 in the cylinder outside of flanging inboard.
Furthermore, a steel lining part 2 is arranged in the center of the inner side of the flange support outer sleeve 1, the steel lining part 2 is formed by connecting and flanging a cylinder, and small holes of 2-4mm are formed in the steel lining part 2.
Furthermore, a resistance wire 5 for capacitance welding is wound at the position, which is close to the outside of the mining fiber reinforced polyethylene pipe, inside the flange support outer sleeve 1.
Further, a resistance wire 5 for capacitance welding is wound on the outer portion of the lining member 3 and the position, close to the inner portion of the mining fiber reinforced polyethylene pipe, in a winding mode.
Preferably, the outer sleeve and the inner lining of the flange support are made of mining polyethylene materials, and the steel lining is made of Q235 steel.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The electric melting flange connecting device of the fiber reinforced composite pipe for the coal mine is characterized by comprising a mining fiber reinforced polyethylene pipe, wherein a lining part is arranged in the end part of the mining fiber reinforced polyethylene pipe, and a flange support outer sleeve for installing an flange and fixing the outer end face of the lining part is arranged on the outer side of the lining part of the mining fiber reinforced polyethylene pipe; the lining part is formed by connecting a cylinder positioned in the mining fiber reinforced polyethylene pipe with a flanging positioned at the end part of the mining fiber reinforced polyethylene pipe; the flange holds in the palm the overcoat including being located the cylinder in mining fibre reinforced polyethylene pipe and the interior backing member turn-ups outside, cylinder medial extremity is equipped with the inside turn-ups that is used for the outer terminal surface of fixed interior backing member, and cylinder outside end is equipped with the flanging, is equipped with the flange support that is used for fixed steel flange dish in the cylinder outside of flanging inboard.
2. An electric smelting flange connection device for coal mine fiber reinforced composite pipes according to claim 1, characterized in that the center of the inner side of the flange support outer sleeve is provided with a steel lining piece, the steel lining piece is composed of a cylinder connecting flanging, and the steel lining piece is provided with a small hole of 2-4 mm.
3. An electric melting flange connection device for a coal mine fiber reinforced composite pipe according to claim 1 or 2, wherein a resistance wire for capacitance welding is wound in the position, which is in close proximity to the outside of the mine fiber reinforced polyethylene pipe, inside the flange support outer sleeve.
4. An electric smelting flange connection device for a coal mine fiber reinforced composite pipe according to claim 1 or 2, characterized in that a resistance wire for capacitance welding is wound around the position of the outside of the lining member and the inner part of the mine fiber reinforced polyethylene pipe in close proximity.
5. An electric smelting flange connection device for coal mine fiber reinforced composite pipes according to claim 1 or 2, characterized in that the flange support outer sleeve and the inner lining are made of mining polyethylene material, and the steel lining is made of Q235 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120223551.XU CN215173170U (en) | 2021-01-27 | 2021-01-27 | Electric melting flange connecting device of fiber reinforced composite pipe for coal mine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120223551.XU CN215173170U (en) | 2021-01-27 | 2021-01-27 | Electric melting flange connecting device of fiber reinforced composite pipe for coal mine |
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| CN215173170U true CN215173170U (en) | 2021-12-14 |
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| CN202120223551.XU Active CN215173170U (en) | 2021-01-27 | 2021-01-27 | Electric melting flange connecting device of fiber reinforced composite pipe for coal mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857391A (en) * | 2022-04-28 | 2022-08-05 | 江苏赛尔超高压特种管业有限公司 | Butt-joint kit for plastic composite pipes and connecting method |
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2021
- 2021-01-27 CN CN202120223551.XU patent/CN215173170U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857391A (en) * | 2022-04-28 | 2022-08-05 | 江苏赛尔超高压特种管业有限公司 | Butt-joint kit for plastic composite pipes and connecting method |
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Inventor after: Li Lin Inventor after: Yang Yong Inventor after: Li Yangyang Inventor after: Feng Lei Inventor after: Feng Yutao Inventor after: Yan Jia Inventor after: Zhang Feihong Inventor after: Zhang Youping Inventor after: Du Hailong Inventor after: Li Yachao Inventor after: Li Zheng Inventor after: Dong Ningguang Inventor after: Tian Peng Inventor before: Zhang Youping Inventor before: Li Yangyang Inventor before: Dong Ningguang Inventor before: Feng Lei Inventor before: Feng Yutao Inventor before: Wang Chunjin Inventor before: Wan Haixin Inventor before: Peng Yejin Inventor before: Du Hailong Inventor before: Li Yachao Inventor before: Li Zheng Inventor before: Tian Peng Inventor before: Yang Yong |