CN209960096U - Steel epoxy sleeve end seal - Google Patents
Steel epoxy sleeve end seal Download PDFInfo
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- CN209960096U CN209960096U CN201920626194.4U CN201920626194U CN209960096U CN 209960096 U CN209960096 U CN 209960096U CN 201920626194 U CN201920626194 U CN 201920626194U CN 209960096 U CN209960096 U CN 209960096U
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Abstract
The utility model discloses a steel epoxy sleeve end sealing element, which comprises an isolation retainer ring, a forming die ring and a positioning cutting sleeve; the isolation check ring is annular and is used for being attached to the end face of the steel epoxy sleeve so as to block a gap between the end part of the steel epoxy sleeve and the pipeline; the forming die ring is cylindrical, and the shape is a stepped shaft shape: comprises an equal-diameter section at one end and a variable-diameter section at the other end; the variable diameter section is as follows: the diameter of the variable diameter section is continuously increased from one end connected with the equal diameter section to the other end; the positioning clamping sleeve is used for being sleeved on the outer side of the equal-diameter section and applying pressure to the equal-diameter section, so that the position of the equal-diameter section on the axis of the pipeline is fixed, and a sealing material at the end part of the steel epoxy sleeve can be conveniently arranged.
Description
Technical Field
The utility model relates to an oil, natural gas line defect repair technical field especially relates to a steel epoxy sleeve tip sealing member.
Background
The steel epoxy sleeve reinforcing and repairing technology is widely applied to repairing the defects of the petroleum and natural gas pipeline. For the mechanical damage that the corrosion defect, the crack and the welding seam defect of the buried oil and gas pressure pipeline and the scratch, the dent, the groove and the like of the pipeline caused by the influence of a third party do not cause leakage, the traditional disposal method is to weld a common steel sleeve (commonly called a sleeve) or weld a steel plate patch and the like directly on the outer wall of the pipeline to reinforce the pipeline. Because welding is needed in the treatment process, certain operation risks exist. The steel epoxy sleeve pipe reinforcing and repairing technology is a fireless treatment technology developed aiming at the defects of the pressure pipe, is used in the 70 th century, has the performance reliability withstanding practical application tests for many years, and is widely applied to western gas-to-east China, Shaanjing pipelines, new oil and gas fields and the like in recent years.
The complete steel epoxy sleeve comprises a cylindrical body with exhaust holes, wherein the cylindrical body is formed by two hoop body semi-rings in a surrounding mode, and the bolt connection relationship between the hoop body semi-rings is formed through connecting bolts. When the steel epoxy sleeve is used specifically, the outer layer used for wrapping the steel epoxy sleeve is required to be arranged on the outer side, the outer layer generally comprises an elastic adhesive tape wound on the inner side and a polypropylene adhesive tape wound on the outer side, and the outer layer is used as an anticorrosive coating on the side face of the steel epoxy sleeve.
Before potting the gap between the steel epoxy sleeve and the pipeline, a sealing material is required to be arranged at the end part of the steel epoxy sleeve, and the sealing material is used as a sealing plate or a boundary of the end part of the steel epoxy sleeve.
The provision of a seal which facilitates the installation of the sealing material, such that it can serve the installation of a steel epoxy sleeve, will undoubtedly further facilitate the use of steel epoxy sleeves.
SUMMERY OF THE UTILITY MODEL
Design to the aforesaid that proposes and conveniently set up the sealing member of sealing material for it can serve and set up steel epoxy sleeve, can further promote the technical problem of the telescopic application of steel epoxy undoubtedly, the utility model provides a steel epoxy sleeve tip sealing member. The sealing element is simple in structure, and sealing materials at the end parts of the steel epoxy sleeves can be conveniently arranged.
To the above problem, the utility model provides a steel epoxy sleeve tip sealing member solves the problem through following technical essential: the steel epoxy sleeve end part sealing element comprises an isolation check ring, a forming die ring and a positioning clamping sleeve;
the isolation check ring is annular and is used for being attached to the end face of the steel epoxy sleeve so as to block a gap between the end part of the steel epoxy sleeve and the pipeline;
the forming die ring is cylindrical, and the shape is a stepped shaft shape: comprises an equal-diameter section at one end and a variable-diameter section at the other end;
the variable diameter section is as follows: the diameter of the variable diameter section is continuously increased from one end connected with the equal diameter section to the other end;
the positioning clamping sleeve is used for being sleeved on the outer side of the equal-diameter section and applying pressure to the equal-diameter section, so that the position of the equal-diameter section on the axis of the pipeline is fixed.
In the prior art, the filler for the gap between the steel epoxy sleeve and the pipeline can adopt epoxy glue stock which has fluidity initially, contains a certain amount of solid particles, has good bonding property on the steel and can be cured within a certain time; the sealing material for sealing the end part of the steel epoxy sleeve can adopt epoxy resin pouring sealant, epoxy bar-planting adhesive and the like. The type of filler and sealing material are different, and in the prior art, when the sealing material is provided, there are: 1. the sealing material can enter the gap to occupy the filling space of the filler, so that the subsequent filling of the filler cannot meet the ideal requirement; 2. although the sealing material has better viscosity when being arranged, the sealing material is easy to fall off particularly when the sealing material is arranged at the bottom side of the pipeline, thereby not only wasting the sealing material, but also influencing the treatment efficiency of the end part of the steel epoxy sleeve.
When the steel epoxy sleeve is used specifically, the isolation check ring is sleeved outside the pipeline, namely the isolation check ring is sleeved on the pipeline through the content on the isolation check ring, one end, close to the steel epoxy sleeve, of the isolation check ring is attached to the end part of the steel epoxy sleeve, and at the moment, the isolation check ring achieves the purpose of plugging a gap between the end part of the steel epoxy sleeve and the pipeline; the specific installation mode of the forming die ring is as follows: the forming die ring is sleeved on the pipeline through a channel on the forming die ring, the large end of the forming die ring faces the isolation check ring, and the projection of the large end of the forming die ring, which faces the end part of the steel epoxy sleeve, falls on the end surface of the steel epoxy sleeve; the positioning clamping sleeve is used for realizing the position fixation of the forming die ring on the axis of the pipeline.
Therefore, an annular cavity around the axis of the pipeline is defined by the inner side of the reducing section on the forming ring, one side of the isolating retainer ring close to the forming die ring, the end face of the steel epoxy sleeve and the side face of the sleeve, if the side face of the sleeve is regarded as the inner side of the annular cavity, the large end of the forming die ring is regarded as the outer side of the annular cavity, and thus the annular cavity is a cavity structure with a large inner part and a small outer part. Simultaneously, because the outside shape of the sealing material after the shaping has received the inboard restraint of shaping die ring reducing section, like this, can make the edge of gained sealing material more regular, above regular anticreep performance that does benefit to sealing material to in the follow-up use of pipeline, utilize sealing material exerts anticorrosive covering effect to steel epoxy sleeve's tip for a long time. Simultaneously, the scheme has simple structure and convenient installation on the pipeline. The positioning clamping sleeve is favorable for the reliability of position constraint of the forming die ring on the pipeline. Meanwhile, the forming die is arranged in the shape, and after the sealing material is solidified, the local part of the sealing element can be repeatedly utilized by firstly disassembling the positioning clamping sleeve and then disassembling the forming die; the obtained sealing material has narrow inner width according to the thickness of the sealing material, so the sealing material has the characteristics of stable shape and stable position on the axis of the pipeline.
The specific installation method can adopt: because one side of the isolation check ring is attached to the end part of the steel epoxy sleeve, the isolation check ring can be installed on the pipeline only by bonding. The continuous increase is a linear increase or a non-linear increase.
The further technical scheme is as follows:
the continuous increase is a linear increase. This scheme of adoption aims at finally can obtaining the sealing material edge that the slope is unanimous at steel epoxy telescopic tip, like this, when outer need extend to sealing material, can realize the zero clearance laminating between sealing material and the skin. Adopt this scheme to keep apart the convenient preparation of retaining ring simultaneously.
As a person skilled in the art, when the steel epoxy sleeve is arranged, the pipeline cannot be cut off, so that the technical scheme is taken as a scheme for conveniently installing the isolation check ring: the method comprises the following steps: the isolation retainer ring comprises two semi-rings. This scheme encloses into complete isolation retaining ring through above two semi-rings, and when the preparation, the accessible obtains a complete ring average cutting two semi-rings.
As another isolating check ring form, the isolating check ring is made of spring steel and is of a disconnected annular structure. This scheme of adoption, when the retaining ring is kept apart in the installation, the application of force makes the incision of keeping apart on the retaining ring open to accomplish and keep apart the retaining ring cover and establish on the pipeline.
As a positioning clamping sleeve form which can reliably position the isolation check ring and is easy to obtain, the positioning clamping sleeve is a steel belt hoop. As the person skilled in the art, the positioning clamping sleeve can also adopt a plastic binding belt, a binding rope, an adhesive tape and the like.
The utility model discloses following beneficial effect has:
when the steel epoxy sleeve is used specifically, the isolation check ring is sleeved outside the pipeline, namely the isolation check ring is sleeved on the pipeline through the content on the isolation check ring, one end, close to the steel epoxy sleeve, of the isolation check ring is attached to the end part of the steel epoxy sleeve, and at the moment, the isolation check ring achieves the purpose of plugging a gap between the end part of the steel epoxy sleeve and the pipeline; the specific installation mode of the forming die ring is as follows: the forming die ring is sleeved on the pipeline through a channel on the forming die ring, the large end of the forming die ring faces the isolation check ring, and the projection of the large end of the forming die ring, which faces the end part of the steel epoxy sleeve, falls on the end surface of the steel epoxy sleeve; the positioning clamping sleeve is used for realizing the position fixation of the forming die ring on the axis of the pipeline.
Therefore, an annular cavity around the axis of the pipeline is defined by the inner side of the reducing section on the forming ring, one side of the isolating retainer ring close to the forming die ring, the end face of the steel epoxy sleeve and the side face of the sleeve, if the side face of the sleeve is regarded as the inner side of the annular cavity, the large end of the forming die ring is regarded as the outer side of the annular cavity, and thus the annular cavity is a cavity structure with a large inner part and a small outer part. Simultaneously, because the outside shape of the sealing material after the shaping has received the inboard restraint of shaping die ring reducing section, like this, can make the edge of gained sealing material more regular, above regular anticreep performance that does benefit to sealing material to in the follow-up use of pipeline, utilize sealing material exerts anticorrosive covering effect to steel epoxy sleeve's tip for a long time. Simultaneously, the scheme has simple structure and convenient installation on the pipeline. The positioning clamping sleeve is favorable for the reliability of position constraint of the forming die ring on the pipeline. Meanwhile, the forming die is arranged in the shape, and after the sealing material is solidified, the local part of the sealing element can be repeatedly utilized by firstly disassembling the positioning clamping sleeve and then disassembling the forming die; the obtained sealing material has narrow inner width according to the thickness of the sealing material, so the sealing material has the characteristics of stable shape and stable position on the axis of the pipeline.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the steel epoxy sleeve end seal according to the present invention, which is a front view with a top section view, and the schematic view is rotated 90 ° counterclockwise under the original main view;
fig. 2 is a partially enlarged view of a portion a shown in fig. 1.
The labels in the figures are: 1. the pipeline, 2, location cutting ferrule, 3, shaping die ring, 4, keep apart retaining ring, 5, steel epoxy sleeve.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the present invention is not limited to the following examples:
example 1:
as shown in fig. 1 and 2, the steel epoxy sleeve end sealing element comprises an isolation retainer ring 4, a forming die ring 3 and a positioning ferrule 2;
the isolation check ring 4 is annular and is used for being attached to the end face of the steel epoxy sleeve 5 so as to block a gap between the end part of the steel epoxy sleeve 5 and the pipeline 1;
the forming die ring 3 is cylindrical, and the shape is a stepped shaft shape: comprises an equal-diameter section at one end and a variable-diameter section at the other end;
the variable diameter section is as follows: the diameter of the variable diameter section is continuously increased from one end connected with the equal diameter section to the other end;
the positioning clamping sleeve 2 is used for being sleeved on the outer side of the equal-diameter section and applying pressure to the equal-diameter section, so that the position of the equal-diameter section on the axis of the pipeline 1 is fixed.
In the prior art, the filler for the gap between the steel epoxy sleeve 5 and the pipeline 1 can be an epoxy glue which has fluidity initially, contains a certain amount of solid particles, has good bonding performance on steel and can be cured within a certain time; the sealing material for sealing the end of the steel epoxy sleeve 5 can adopt epoxy resin pouring sealant, epoxy embedded bar adhesive and the like. The type of filler and sealing material are different, and in the prior art, when the sealing material is provided, there are: 1. the sealing material can enter the gap to occupy the filling space of the filler, so that the subsequent filling of the filler cannot meet the ideal requirement; 2. although the sealing material has good viscosity when being arranged, the sealing material is easy to fall off particularly when the sealing material is arranged at the bottom side of the pipeline 1, which not only wastes the sealing material, but also affects the treatment efficiency of the end part of the steel epoxy sleeve 5.
When the scheme is specifically applied, the isolation check ring 4 is sleeved on the outer side of the pipeline 1, namely the isolation check ring 4 is sleeved on the pipeline 1 through the content on the isolation check ring 4, and one end, close to the steel epoxy sleeve 5, of the isolation check ring 4 is attached to the end part of the steel epoxy sleeve 5, and at the moment, the isolation check ring 4 achieves the purpose of plugging a gap between the end part of the steel epoxy sleeve 5 and the pipeline 1; the specific installation mode of the forming die ring 3 is as follows: the forming die ring 3 is sleeved on the pipeline 1 through a channel on the forming die ring, the large end of the forming die ring 3 faces the isolation check ring 4, and the projection of the large end of the forming die ring 3, which faces the end part of the steel epoxy sleeve 5, falls on the end surface of the steel epoxy sleeve 5; the positioning clamping sleeve 2 is used for fixing the position of the forming die ring 3 on the axis of the pipeline 1.
Like this, enclose into an annular cavity around the pipeline 1 axis between one side that the inboard of reducing section, isolation retaining ring 4 are close to forming die ring 3 on the forming die ring 3, the terminal surface of steel epoxy sleeve 5, the sheathed tube side, if regard as the sheathed tube side annular cavity's inboard, forming die ring 3's big end is regarded as annular cavity's the outside, like this, annular cavity is a big-end-in-depth cavity structure promptly, and above cavity structure is used for setting up sealing material is pouring when sealing material annular cavity's each point, the direction of pouring all adopt by the inboard outside direction of cavity, like this, through annular cavity border bonding sealing material, when can effectively solving 5 tip of steel epoxy sleeve and setting up sealing material, the sealing material easily drops the problem that influences material utilization ratio and efficiency of construction. Simultaneously, because the outside shape of the sealing material after the shaping has received the inboard restraint of the section of reducing of shaping diaphragm ring 3, like this, can make the edge of gained sealing material more regular, above regular anticreep performance that does benefit to sealing material to in the follow-up use of pipeline 1, utilize sealing material exerts anticorrosive covering effect to the tip of steel epoxy sleeve 5 for a long time. Simultaneously, the scheme has simple structure and is convenient to install on the pipeline 1. The positioning clamping sleeve 2 is beneficial to the reliability of position constraint of the forming die ring 3 on the pipeline 1. Meanwhile, the forming die ring 3 is arranged in a shape, and after the sealing material is solidified, the local part of the sealing element can be repeatedly utilized by firstly disassembling the positioning clamping sleeve 2 and then disassembling the forming die ring 3; the obtained sealing material has a narrow width in the inner direction with respect to the thickness of the sealing material, so that the sealing material itself is also characterized by a stable shape and a stable position on the axis of the pipe 1.
The specific installation method can adopt: because one side of the isolation check ring 4 is attached to the end part of the steel epoxy sleeve 5, the isolation check ring 4 can be installed on the pipeline 1 by adhesion. The continuous increase is a linear increase or a non-linear increase.
Example 2:
this embodiment is further defined on the basis of embodiment 1, and as shown in fig. 1 and 2, the continuous increase is a linear increase. This scheme of adoption aims at finally can obtaining the consistent sealing material edge of slope at the tip of steel epoxy sleeve 5, like this, when outer layer need extend to sealing material on, can realize the zero clearance laminating between sealing material and the outer layer. Adopt this scheme to keep apart retaining ring 4 convenient preparation simultaneously.
As a person skilled in the art, since it is impossible to cut the pipe 1 when the steel epoxy sleeve 5 is installed, it is a solution that facilitates installation of the isolation collar 4: the method comprises the following steps: the separation collar 4 comprises two half rings. This scheme encloses into complete isolation retaining ring 4 through above two semi-rings, and when the preparation, the accessible obtains a complete ring average cutting two semi-rings.
As another form of the isolation check ring 4, the isolation check ring 4 is made of spring steel, and the isolation check ring 4 is in a disconnected annular structure. This scheme of adoption, when retaining ring 4 is kept apart in the installation, the application of force makes the incision of keeping apart on retaining ring 4 open to the completion will keep apart retaining ring 4 cover and establish on pipeline 1.
As a positioning clamping sleeve 2 form which can reliably position the isolation check ring 4 and is easy to obtain, the positioning clamping sleeve 2 is a steel belt hoop. As a person skilled in the art, the positioning card sleeve 2 can also adopt a plastic binding tape, a binding rope, an adhesive tape and the like.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model belongs to the technical field of the ordinary skilled person say, do not deviate from the utility model discloses a other embodiments that reach under the technical scheme all should be contained the utility model discloses a within the scope of protection.
Claims (5)
1. The steel epoxy sleeve end part sealing element is characterized by comprising an isolation check ring (4), a forming die ring (3) and a positioning clamping sleeve (2);
the isolation check ring (4) is annular and is used for being attached to the end face of the steel epoxy sleeve (5) so as to block a gap between the end part of the steel epoxy sleeve (5) and the pipeline (1);
the molding die ring (3) is cylindrical, and the shape is stepped shaft shape: comprises an equal-diameter section at one end and a variable-diameter section at the other end;
the variable diameter section is as follows: the diameter of the variable diameter section is continuously increased from one end connected with the equal diameter section to the other end;
the positioning clamping sleeve (2) is used for being sleeved on the outer side of the equal-diameter section and applying pressure to the equal-diameter section, so that the position of the equal-diameter section on the axis of the pipeline (1) is fixed.
2. The steel epoxy sleeve end seal of claim 1, wherein the continuous increase is a linear increase.
3. The steel epoxy sleeve end seal according to claim 1, wherein the isolating retainer ring (4) comprises two half rings.
4. The steel epoxy sleeve end seal according to claim 1, wherein the isolating retainer ring (4) is made of spring steel, and the isolating retainer ring (4) has a broken ring structure.
5. The steel epoxy sleeve end seal according to claim 1, wherein the positioning ferrule (2) is a steel band hoop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920626194.4U CN209960096U (en) | 2019-04-30 | 2019-04-30 | Steel epoxy sleeve end seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920626194.4U CN209960096U (en) | 2019-04-30 | 2019-04-30 | Steel epoxy sleeve end seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209960096U true CN209960096U (en) | 2020-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920626194.4U Active CN209960096U (en) | 2019-04-30 | 2019-04-30 | Steel epoxy sleeve end seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209960096U (en) |
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2019
- 2019-04-30 CN CN201920626194.4U patent/CN209960096U/en active Active
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