CN215215261U - Pipeline joint device and pipeline pressure testing system - Google Patents
Pipeline joint device and pipeline pressure testing system Download PDFInfo
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- CN215215261U CN215215261U CN202120626657.4U CN202120626657U CN215215261U CN 215215261 U CN215215261 U CN 215215261U CN 202120626657 U CN202120626657 U CN 202120626657U CN 215215261 U CN215215261 U CN 215215261U
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Abstract
The application provides a pipeline joint device and a pipeline pressure testing system, the pipeline joint device comprises a joint pipe, a pressure testing nozzle and plugging pieces, at least one group of sealing components are arranged on the inner wall of the joint pipe, each group of sealing components comprises at least two annular sealing pieces, a pressure testing hole is formed in the pipe wall of the joint pipe, and one end of the pressure testing hole extends into the space between every two adjacent annular sealing pieces; the pressure testing nozzle is detachably arranged in the pressure testing hole and is used for being connected with the pressure testing connecting wire so as to inject a pressure testing medium between the two annular sealing pieces; the plugging piece is detachably mounted in the pressure testing hole and used for plugging the pressure testing hole after the pressure testing is finished and the pressure testing nozzle is separated from the pressure testing hole. The pipeline joint device can solve the technical problem that the sealing performance of the pressure testing nozzle is poor after pressure testing in the prior art.
Description
Technical Field
The application relates to the technical field of pipeline connection, in particular to a pipeline joint device and a pipeline pressure test system.
Background
The glass fiber reinforced plastic sand inclusion pipe, glass fiber reinforced plastic pipe for short, is a novel flexible nonmetal (resin, fiber, sand and the like) composite material pipeline, is generally produced by adopting a fixed-length winding process, a centrifugal casting process or a continuous winding process, and is a widely used flexible composite material pipeline.
The connection form among the glass steel pipes is socket joint, butt joint, flange and the like, and the quality of the connection directly influences the quality of the pipeline. In order to verify the accuracy of field installation and the quality of products, the pipe joint needs to be subjected to a hydrostatic test after field installation to detect the tightness of the joint. Because of this characteristic of continuous winding production technology, continuously wound pipes are typically telescopically connected. The pressure test mode of the sleeve type joint generally adopts two sealing rings, a pressure test space is enclosed between the sleeve and the glass fiber reinforced plastic pipe, a pressure test nozzle is arranged on the sleeve, fluid is injected into the pressure test space through the pressure test nozzle during pressure test to carry out pressure test, leakage is avoided as the standard, the sealing effect of each joint is ensured, and the whole pressure test success of the whole pipeline system is ensured.
However, after the pressure test is completed, the pressure test nozzle needs to be plugged again to ensure the sealing performance of the whole pipeline, and in the prior art, the sealing performance is poor by directly adding a sealing cover or a sealing plug and the like to the pressure test nozzle.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a pipeline joint device and a pipeline pressure testing system for solve the technical problem that the sealing performance of a pressure testing nozzle is poor after pressure testing in the prior art.
The embodiment of the application provides a pipeline joint device and pipeline pressure testing system, and this pipeline joint device includes adapter tube, pressure testing mouth and shutoff piece.
At least one group of sealing assemblies is arranged on the inner wall of the joint pipe, each group of sealing assemblies comprises at least two annular sealing pieces, a pressure test hole is formed in the pipe wall of the joint pipe, and one end of each pressure test hole extends into a position between every two adjacent annular sealing pieces;
the pressure testing nozzle is detachably arranged in the pressure testing hole and is used for being connected with a pressure testing connecting wire so as to inject a pressure testing medium between the two annular sealing pieces;
and the plugging piece is detachably arranged in the pressure test hole and used for plugging the pressure test hole after the pressure test is finished and the pressure test nozzle is separated from the pressure test hole.
In this implementation, above-mentioned pipeline joint device can dismantle with the pressure testing hole through setting up the pressure testing mouth and be connected, dismantles the pressure testing mouth from the pressure testing hole after the pressure testing is accomplished, directly adopts shutoff piece shutoff sealing pressure testing hole, need not to seal on the structure basis of pressure testing mouth, simple structure, and sealed effect is better, and the pressure testing mouth need not to stay on the adapter tube, repeatedly usable.
In a possible implementation manner, the pressure test nozzle comprises a connecting section and a plug section which are connected with each other, the plug section is used for being inserted into the pressure test hole, and the connecting section is reserved outside the joint pipe and is used for being connected with a pressure test connecting line.
In the implementation mode, the plug section of the pressure testing nozzle is inserted into the pressure testing hole and detachably connected with the pressure testing hole, and the connecting section is reserved outside the joint pipe and is connected with a pressure testing connecting wire and is introduced with a pressure testing medium. The connecting section is different from the inserting section in function, different in structure and capable of being made of different materials, so that the pressure testing nozzle can be connected with the pressure testing connecting wire and detachably connected with the pressure testing hole at the same time, and effectiveness of the two functions is guaranteed.
In a possible implementation manner, a first thread is arranged on the outer surface of the plug section, and a second thread matched with the first thread is arranged in the pressure test hole.
In the implementation mode, the plug section is detachably connected with the pressure test hole through threaded connection, the structure is simple, and the dismounting and mounting operation is convenient.
In one possible implementation, the inner diameter of the pressure test hole is smaller than the outer diameter of the first thread; the plug section is far away from the end part of the connecting section and is arranged to be a conical end, and the conical end is used for driving the plug section to be screwed into the pressure test hole so as to form the second threads on the inner wall of the pressure test hole.
In this implementation, the plug section of above-mentioned pressure testing mouth adopts the form of tapping to get into the pressure testing hole, can effectively improve the sealing connection in pressure testing mouth and pressure testing hole.
In a possible implementation, a third thread adapted to the second thread is provided on the outer surface of the block piece.
In this implementation, set up the third screw thread on the shutoff piece on the basis that the downthehole second screw thread that is provided with of pressure testing, realize the threaded connection in shutoff piece and pressure testing hole, can effectively simplify the structure, improve the convenience of shutoff operation.
In one possible implementation, the joint pipe includes a sleeve and an elastic sealing layer, the elastic sealing layer is disposed to be attached to an inner wall of the sleeve, and the annular sealing member is disposed on an inner wall of the elastic sealing layer and extends radially inward.
In this implementation, when connecting the pipeline, the both ends of two adjacent pipelines insert the both ends of joint pipe respectively, and the annular seal ring extrusion laminating on the outer wall of pipeline and the inner wall of elastic sealing layer is in order to realize sealedly. The sleeve is arranged for realizing rigid connection of two adjacent pipelines; the elastic sealing layer is arranged for connecting the two pipelines and the sleeve in a sealing manner, so that the sealing property is improved; the annular sealing ring and the elastic sealing layer are integrally formed, so that the overall sealing performance can be further improved.
In a possible implementation manner, a first embedding structure is formed on an inner wall of the sleeve, a second embedding structure matched with the first embedding structure is formed on an outer wall of the elastic sealing layer, and the first embedding structure and the second embedding structure are connected in a matched manner to form an embedding type connecting structure so as to connect the elastic sealing layer and the sleeve.
In this implementation, the first embedding structure and the second embedding structure are adopted to cooperate to realize the embedding of the connecting sleeve and the elastic sealing layer, so that the connection stability between the sleeve and the elastic sealing layer can be improved.
In a possible implementation manner, an adhesive layer is arranged on the outer wall of the elastic sealing layer and used for bonding the inner wall of the sleeve.
In this implementation mode, the outer wall of the elastic sealing layer is provided with the adhesive layer, so that on one hand, the sealing connection between the sleeve and the elastic sealing layer can be realized, and on the other hand, the connection stability between the sleeve and the elastic sealing layer can be improved.
In a possible implementation manner, the sleeve is a cured layer of glass fiber wound and molded on the outer wall of the elastic sealing layer.
In this implementation, the sleeve structure is formed by directly winding the glass fiber on the outer wall of the elastic sealing layer to form the cured layer, so that the adhesion and integrity between the sleeve and the elastic sealing layer can be improved.
In a second aspect, the present application further provides a pipe pressure testing system comprising the pipe joint device described in any of the embodiments of the first aspect.
The pipeline joint device is used for pressure testing, and has the advantages of simple structure, convenience in operation and reusability of the pressure testing nozzle.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a structural diagram of a pipe joint device according to an embodiment of the present application;
FIG. 2 is a block diagram of a pressure testing nozzle provided in an embodiment of the present application;
fig. 3 is a structural diagram of a plugging member according to an embodiment of the present application.
Icon: -a connector tube; 110-a seal assembly; 111-an annular seal; 120-pressure test holes; 200-pressure testing mouth; 300-a blocking piece; 210-a connecting segment; 220-a plug section; 221-a first thread; 310-a third thread; 130-a sleeve; 140-elastomeric sealing layer.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
In a first aspect, an embodiment of the present application provides a pipe joint device, please refer to fig. 1, fig. 2 and fig. 3, fig. 1 is a structural diagram of a pipe joint device provided in an embodiment of the present application; fig. 2 is a structural diagram of a pressure testing nozzle 200 according to an embodiment of the present disclosure; fig. 3 is a block diagram of a block piece 300 according to an embodiment of the present disclosure. The pipe joint device includes a joint pipe 100, a pressure test nozzle 200, and a block piece 300.
At least one group of sealing assemblies 110 are arranged on the inner wall of the joint pipe 100, each group of sealing assemblies 110 comprises at least two annular sealing pieces 111, a pressure test hole 120 is formed in the pipe wall of the joint pipe 100, and one end of each pressure test hole 120 extends into a position between every two adjacent annular sealing pieces 111;
a pressure test nozzle 200 detachably mounted to the pressure test hole 120, for connecting with a pressure test connection line to inject a pressure test medium between the two annular sealing members 111;
and the plugging piece 300 is detachably arranged in the pressure test hole 120 and is used for plugging the pressure test hole 120 after the pressure test is finished and the pressure test nozzle 200 is separated from the pressure test hole 120.
In this implementation, the joint pipe 100 is used to connect two adjacent pipes, and the connection ends of the two pipes respectively extend into two ports of the joint pipe 100 and are sealed by the sealing assembly 110. The adjacent two annular sealing members 111 seal the pipeline and the joint pipe 100, a pressure testing space is formed between the outer wall of the pipeline and the inner wall of the joint pipe 100, the pressure testing space is located between the two annular sealing members 111, a pressure testing hole 120 is formed in the joint pipe 100, one end of the pressure testing hole 120 extends into the space between the two annular sealing members 111, and the pressure testing hole 120 is communicated with the pressure testing space. After the connection is completed, a pressure test is required to test the sealing effect of the joint pipe 100. Specifically, the pressure testing nozzle 200 is installed in the pressure testing hole 120 and connected with a pressure testing connecting line, a pressure testing medium, such as water or compressed gas, is injected into the pressure testing space for pressure testing, and if leakage does not occur, the sealing is qualified; if leakage occurs, the seal is not qualified. After the pressure test is completed, the pressure test nozzle 200 is detached from the pressure test hole 120, and the pressure test hole 120 is directly plugged by using another plugging member 300.
It can be seen that above-mentioned pipeline joint device can dismantle with pressure testing hole 120 through setting up pressure testing mouth 200 and being connected, dismantles pressure testing mouth 200 from pressure testing hole 120 after the pressure testing is accomplished, directly adopts shutoff piece 300 shutoff sealed pressure testing hole 120, need not to seal on pressure testing mouth 200's structural basis, simple structure, and sealed effect is better, and pressure testing mouth 200 need not to stay on adapter tube 100, repeatedly usable.
Optionally, the length of the plugging member 300 may be set to be less than or equal to the depth of the pressure test hole 120, so that the plugging member 300 does not expose the pressure test hole 120 when plugging in the pressure test hole 120, thereby ensuring the smoothness and coordination of the outer surface of the whole pipeline.
Alternatively, the end portions of the two adjacent annular sealing members 111 in each set of sealing assemblies 110, which are far away from the inner wall of the joint pipe 100, may be both bent toward the middle of the joint pipe 100, may be both bent away from the middle of the joint pipe 100, and may also be bent toward the middle of the joint pipe 100, and the other is bent away from the middle of the joint pipe 100, which is not limited in the embodiment of the present application.
In one possible implementation, the pressure testing nozzle 200 includes a connection section 210 and a plug section 220 connected to each other, the plug section 220 is used for being inserted into the pressure testing hole 120, and the connection section 210 is reserved outside the joint pipe 100 for being connected with a pressure testing connection line.
In this implementation, the plug section 220 of the pressure testing nozzle 200 is inserted into the pressure testing hole 120 and detachably connected to the pressure testing hole 120, and the connection section 210 is reserved outside the joint pipe 100 and connected to a pressure testing connection line, and a pressure testing medium is introduced. The connecting section 210 has different functions and different structures from the inserting section, and can be made of different materials, so that the pressure testing nozzle 200 can be connected with a pressure testing connecting line and detachably connected with the pressure testing hole 120, and effectiveness of the two functions is guaranteed.
In one possible implementation, the plug section 220 is provided with a first thread 221 on an outer surface thereof, and the pressure test hole 120 is provided with a second thread matching the first thread 221.
In this implementation, the plug section 220 and the pressure testing hole 120 are detachably connected through a threaded connection, and the plug section is simple in structure and convenient to disassemble and assemble.
In one possible implementation, the inner diameter of the pressure test hole 120 is smaller than the outer diameter of the first thread 221; the end of the plug section 220 away from the connection section 210 is a tapered end, and the tapered end is used to drive the plug section 220 to screw into the pressure test hole 120, so as to form a second thread on the inner wall of the pressure test hole 120.
In this implementation, since the outer diameter of the first thread 221 is larger than the inner diameter of the pressure test hole 120, when the pressure test nozzle 200 is inserted into the pressure test hole 120, the tapered portion of the plug section 220 is inserted into the pressure test hole 120 to align the plug section 220 with the pressure test hole 120, and then the pressure test nozzle 200 is rotated to machine a second thread on the inner wall of the pressure test hole 120 through the first thread 221 on the plug section 220. Therefore, the plug section 220 of the pressure testing nozzle 200 enters the pressure testing hole 120 in a tapping mode, and the sealing connection between the pressure testing nozzle 200 and the pressure testing hole 120 can be effectively improved.
Optionally, the diameter of the tapered end decreases from the end of the plug section 220 in a direction away from the plug section 220. The plug section 220 may be made of a material having a strength greater than that of the joint pipe 100, or may be made of the same material as that of the joint pipe 100.
In a possible implementation, a third thread 310 adapted to the second thread is provided on the outer surface of the closure 300.
In this implementation, when the pressure test is completed, the pressure test nozzle 200 is pulled out from the pressure test hole 120, and then the plugging member 300 is screwed into the pressure test hole 120, and the plugging member 300 is plugged into the pressure test hole 120 by the screw-fit connection of the third screw 310 and the second screw. On the basis that the second threads are arranged in the pressure test hole 120, the third threads 310 are arranged on the plugging piece 300, so that threaded connection between the plugging piece 300 and the pressure test hole 120 is realized, the structure can be effectively simplified, and the convenience of plugging operation is improved.
Alternatively, the first thread 221 is adapted to the second thread, and the third thread 310 is adapted to the second thread, so that the third thread 310 may be provided with the same thread structure as the first thread 221. The outer diameter of the third thread 310 may be slightly larger than that of the first thread 221, so that the third thread 310 may be tightly connected with the second thread, thereby improving the sealing property of the connection between the plugging member 300 and the pressure test hole 120.
Optionally, a slit is provided on an end surface of one end of the plugging member 300, so that the plugging member 300 is screwed by a screwdriver inserted into the slit to screw the plugging member 300 into the pressure test hole 120. Alternatively, a rotating plate is provided at one end of the plugging member 300, the rotating plate extends parallel to the axis of the plugging member 300, and an operator can rotate the plugging member 300 into the pressure test hole 120 by holding the rotating plate with his hand.
In one possible implementation, the joint tube 100 includes a sleeve 130 and an elastic sealing layer 140, the elastic sealing layer 140 is disposed against an inner wall of the sleeve 130, and the annular sealing member 111 is disposed on the inner wall of the elastic sealing layer 140 and extends radially inward.
In this implementation, when connecting pipes, two ends of two adjacent pipes are respectively inserted into two ends of the joint pipe 100, and the outer wall of the pipe is pressed against the annular sealing ring on the inner wall of the elastic sealing layer 140 to realize sealing. The sleeve 130 is arranged for realizing rigid connection of two adjacent pipelines; the elastic sealing layer 140 is arranged for sealing and connecting the two pipelines and the sleeve 130, so that the sealing property is improved; the provision of the integral formation of the annular seal ring and the elastic seal layer 140 further improves the overall sealing performance.
In a possible implementation manner, a first engaging structure is disposed on an inner wall of the sleeve 130, a second engaging structure adapted to the first engaging structure is disposed on an outer wall of the elastic sealing layer 140, and the first engaging structure and the second engaging structure are cooperatively connected to form an engaging type connecting structure to connect the elastic sealing layer 140 and the sleeve 130.
In this implementation, the first engaging structure and the second engaging structure are used to cooperate to engage the sleeve 130 and the elastic sealing layer 140, so as to improve the connection stability between the sleeve 130 and the elastic sealing layer 140.
Specifically, the first engaging structure may be a dovetail groove or a dovetail protrusion, and the second engaging structure may be a corresponding dovetail protrusion or a dovetail groove, that is, the first engaging structure and the second engaging structure implement a dovetail joint structure.
In one possible implementation, the outer wall of the elastic sealing layer 140 is provided with an adhesive layer for bonding the inner wall of the sleeve 130.
In this embodiment, an adhesive layer is disposed on the outer wall of the elastic sealing layer 140, so that on one hand, the sleeve 130 and the elastic sealing layer 140 can be hermetically connected, and on the other hand, the connection stability between the sleeve 130 and the elastic sealing layer 140 can be improved.
In one possible implementation, the sleeve 130 is a cured layer of glass fibers wound around the outer wall of the elastic sealing layer 140.
In this implementation, the sleeve 130 structure is formed by directly winding glass fiber around the outer wall of the elastic sealing layer 140 to form a cured layer, so that the adhesion and integrity between the sleeve 130 and the elastic sealing layer 140 can be improved.
In some embodiments, the connecting section 210 is removably connected to the plug section 220, and the plugging head is configured to plug the plug section 220 to seal the pressure testing hole 120 after the pressure testing is completed and the connecting section 210 is detached from the plug section 220.
Specifically, one end of the connecting section 210 close to the plug section 220 is provided with a connecting portion, a fourth thread is arranged on the outer wall of the connecting portion, a connecting hole is formed in the end portion of the plug section 220 close to the connecting section 210, and a fifth thread matched with the fourth thread is arranged on the inner wall of the connecting hole so as to realize connection of the connecting section 210 and the plug section 220.
Optionally, a connection hole for passing a pressure test medium is formed in the plug section 220, a sixth thread is arranged on the inner wall of the connection hole, and a seventh thread matched with the sixth thread is arranged on the outer wall of the plugging member 300.
In a second aspect, the present application further provides a pipe pressure testing system comprising the pipe joint device described in any of the embodiments of the first aspect.
The pipeline joint device is used for pressure testing, the structure is simple, the operation is convenient, and the pressure testing nozzle 200 can be repeatedly used.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A pipe joint assembly, comprising:
the inner wall of the joint pipe is provided with at least one group of sealing components, each group of sealing components comprises at least two annular sealing pieces, the pipe wall of the joint pipe is provided with a pressure testing hole, and one end of each pressure testing hole extends into a space between every two adjacent annular sealing pieces;
the pressure testing nozzle is detachably arranged in the pressure testing hole and is used for being connected with a pressure testing connecting wire so as to inject a pressure testing medium between the two annular sealing pieces;
and the plugging piece is detachably arranged in the pressure test hole and used for plugging the pressure test hole after the pressure test is finished and the pressure test nozzle is separated from the pressure test hole.
2. The pipe joint device of claim 1, wherein the pressure testing nozzle comprises a connecting section and a plug section which are connected with each other, the plug section is used for being inserted into the pressure testing hole, and the connecting section is reserved outside the joint pipe and is used for being connected with a pressure testing connecting line.
3. The pipe joint arrangement of claim 2, wherein the plug section has a first thread disposed on an outer surface thereof, and a second thread disposed within the pressure testing bore for mating with the first thread.
4. The pipe joint device of claim 3, wherein the inner diameter of the pressure testing bore is smaller than the outer diameter of the first thread;
the plug section is far away from the end part of the connecting section and is arranged to be a conical end, and the conical end is used for driving the plug section to be screwed into the pressure test hole so as to form the second threads on the inner wall of the pressure test hole.
5. A pipe coupling according to claim 3, wherein the outer surface of the closure member is provided with a third thread adapted to the second thread.
6. The pipe coupling device according to any one of claims 1-5, wherein the coupling tube comprises a sleeve and an elastomeric sealing layer disposed against an inner wall of the sleeve, the annular seal being disposed on the inner wall of the elastomeric sealing layer and extending radially inward.
7. The pipe joint device according to claim 6, wherein a first engaging structure is formed on an inner wall of the sleeve, a second engaging structure adapted to the first engaging structure is formed on an outer wall of the elastic sealing layer, and the first engaging structure and the second engaging structure are cooperatively connected to form an engaging type connecting structure for connecting the elastic sealing layer and the sleeve.
8. The pipe joint assembly of claim 6, wherein the outer wall of the elastomeric seal layer is provided with an adhesive layer for bonding to the inner wall of the sleeve.
9. The conduit coupling device of claim 6 wherein said sleeve is a cured layer of fiberglass wrapped around an outer wall of said elastomeric seal layer.
10. A pipe pressure testing system comprising the pipe joint device of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120626657.4U CN215215261U (en) | 2021-03-26 | 2021-03-26 | Pipeline joint device and pipeline pressure testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120626657.4U CN215215261U (en) | 2021-03-26 | 2021-03-26 | Pipeline joint device and pipeline pressure testing system |
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| Publication Number | Publication Date |
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| CN215215261U true CN215215261U (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120626657.4U Active CN215215261U (en) | 2021-03-26 | 2021-03-26 | Pipeline joint device and pipeline pressure testing system |
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| CN (1) | CN215215261U (en) |
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2021
- 2021-03-26 CN CN202120626657.4U patent/CN215215261U/en active Active
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