CN210318891U - Node type pressure testing welding-free pipeline joint - Google Patents
Node type pressure testing welding-free pipeline joint Download PDFInfo
- Publication number
- CN210318891U CN210318891U CN201921098809.7U CN201921098809U CN210318891U CN 210318891 U CN210318891 U CN 210318891U CN 201921098809 U CN201921098809 U CN 201921098809U CN 210318891 U CN210318891 U CN 210318891U
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- Prior art keywords
- joint
- pressure testing
- sealing
- shaped sealing
- node
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- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 238000007789 sealing Methods 0.000 claims abstract description 94
- 239000003292 glue Substances 0.000 claims abstract description 17
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 2
- 239000000565 sealant Substances 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a welding-free pipeline joint of node formula pressure testing, characterized by: including the intermediate head, control sealing joint, control the end cap, the intermediate head suit is left, right treating connecting line pipe orifice tip, and left and right sealing joint has been screwed respectively at intermediate head outside both ends, left and right sealing joint outside end has left, right end cap respectively, constitutes quick-operation joint structure, and quick-operation joint and left and right are treated and are equipped with high-pressure sealing glue film between the connecting line pipe orifice tip, constitute whole solderless quick-operation joint structure, the disc is equipped with the pressure testing annular in the sealing joint middle part, pressure testing annular and radial screw hole intercommunication. Has the advantages that: the sealant is stored in the closed space at the root of the thread between the joints, and the thread extrusion achieves a good sealing effect; local node type pressure testing is adopted, and the joint can be independently tested after being connected with a pipeline on one side, so that the pressure testing is simple and efficient.
Description
Technical Field
The utility model belongs to the technical field of mechanical engineering, especially, relate to a welding-free pipeline joint of node formula pressure testing.
Background
The welding-free quick joint is needed in the occasions where a plurality of butt-jointed pipelines can not be welded, and the pipeline and the joint are pressed together by hydraulic equipment in most of the prior art, so that the aim of pressure resistance of the pipeline is fulfilled through local deformation. However, the joint process has a main problem that pressure testing cannot be carried out before all pipelines are connected, and the pressure testing can be carried out integrally only after all joints are connected. Once a leak is found in one of the joints, disposal is cumbersome.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome not enough among the prior art, provide a welding-free pipeline joint of node formula pressure testing, belong to and exempt from to weld quick-operation joint, can the pressure testing alone after having connect, need not be full of the medium in the pipeline system, greatly reduced the pressure testing and reprocess the cost.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme, a welding-free pipeline joint of node formula pressure testing, characterized by: including the intermediate head, control sealing joint, control the end cap, the intermediate head suit is left, right treating connecting line pipe orifice tip, and left and right sealing joint has been screwed respectively at intermediate head outside both ends, left and right sealing joint outside end has left, right end cap respectively, constitutes quick-operation joint structure, and quick-operation joint and left and right are treated and are equipped with high-pressure sealing glue film between the connecting line pipe orifice tip, constitute whole solderless quick-operation joint structure, the disc is equipped with the pressure testing annular in the sealing joint middle part, pressure testing annular and radial screw hole intercommunication.
The cross section of the intermediate joint is in a step shape, threads which are in threaded connection with the left sealing joint and the right sealing joint are arranged on step excircle threads at two ends of the intermediate joint, and a step hole-shaped circular bead is arranged on the inner circular wall of the intermediate joint.
And O-shaped sealing ring circular grooves are arranged on two sides of a circular shoulder of the step hole shape of the inner circular surface of the middle joint, and O-shaped sealing rings are arranged in the O-shaped sealing ring circular grooves.
O-shaped sealing ring circular grooves are arranged on two sides of a pressure testing ring groove of the sealing joint, and O-shaped sealing rings are arranged in the O-shaped sealing ring circular grooves.
And radial glue injection holes are formed in the left sealing joint and the right sealing joint.
And O-shaped sealing ring circular grooves are formed in the inner walls of the left plug and the right plug, and O-shaped sealing rings are arranged in the O-shaped sealing ring circular grooves.
Has the advantages that: compared with the prior art, the sealing glue is stored in the closed space at the root of the thread between the joints, and then the thread is extruded to achieve a good sealing effect; the joint can be independently tested after being connected with a pipeline on one side, the pressure testing is simple and efficient, and the defect of large-workload repair caused by leakage after all pipeline systems are connected is avoided. After all pipeline systems are connected, media need to be filled in the process of pressure testing, the media are wasted, and the time is consumed; the local node type pressure test of the utility model only uses few media, and even can use water to replace the media for pressure test, thereby saving the cost and improving the pressure test efficiency; the whole structure can be manufactured according to the requirements of the dielectric material, and the cost is controllable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the intermediate joint of FIG. 1;
fig. 3 is a schematic structural view of the right sealing joint in fig. 1.
In the figure: 1. the sealing device comprises a connecting pipeline, 2, a left plug, a right plug, 3, a left sealing joint, a right sealing joint, 4, an intermediate joint, 4-1, a shoulder, 5, a high-pressure sealing glue layer, 6, a pressure test annular groove, 7, an O-shaped sealing ring circular groove, 7-1, an O-shaped sealing ring, 8, a glue injection hole, 9 and a radial threaded hole.
Detailed Description
The following detailed description of the embodiments according to the present invention with reference to the preferred embodiments is as follows: see the figure in detail, a welding-free pipeline joint of node formula pressure testing, including intermediate head 4, left and right sealing joint 3, left and right end cap 2, the intermediate head suit is in the left and right 1 mouth of pipe tip of connecting line of treating, and the left and right sealing joint of spiro union respectively in the both ends in the intermediate head outside, the left and right sealing joint outside end spiro union has left and right end cap respectively, constitutes quick-operation joint structure, and quick-operation joint and left and right are treated to be equipped with high-pressure sealing glue film 5 between the connecting line mouth of pipe tip, constitute whole welding-free quick-operation joint structure, the interior disc of sealing joint middle part is equipped with pressure testing annular 6, the pressure testing annular communicates with radial screw hole 9. The cross section of the intermediate joint is in a step shape, threads which are in threaded connection with the left sealing joint and the right sealing joint are arranged on step excircle threads at two ends of the intermediate joint, and a step hole-shaped shoulder 4-1 is arranged on the inner circular wall of the intermediate joint. O-shaped sealing ring circular grooves 7 are formed in two sides of a shoulder of the stepped hole shape of the inner circle surface of the middle joint, and O-shaped sealing rings 7-1 are arranged in the O-shaped sealing ring circular grooves. O-shaped sealing ring circular grooves are arranged on two sides of a pressure testing ring groove of the sealing joint, and O-shaped sealing rings are arranged in the O-shaped sealing ring circular grooves. And radial glue injection holes 8 are formed in the left sealing joint and the right sealing joint. And O-shaped sealing ring circular grooves are formed in the inner walls of the left plug and the right plug, and O-shaped sealing rings are arranged in the O-shaped sealing ring circular grooves.
Examples
As shown in fig. 1-3, the quick connector comprises an intermediate connector 4, two sealing connectors 3 and two plugs 2. The plug 2 and the sealing joint 3 are sleeved on the outer circular surface of the pipeline 1 to be connected, the pipeline to be connected is inserted into the middle joint 4 to the shoulder of the middle step hole, the sealing joint 3 is in threaded connection with the middle joint 4, and the plug 2 is in threaded connection with the other end of the sealing joint 3. The inner circle surface of the plug 2 is provided with an O-shaped sealing ring circular groove which is internally provided with an O-shaped sealing ring 7-1, and the two sides of the stepped hole of the inner circle surface of the intermediate joint are provided with O-shaped sealing ring circular grooves which are internally provided with O-shaped sealing rings 7-1. The inner circle surface in the middle of the sealing joint 3 is provided with a pressure test ring groove 6, two sides of the pressure test ring groove are provided with O-shaped sealing ring circular grooves, an O-shaped sealing ring 7-1 is arranged in each sealing ring circular groove, the pressure test ring grooves are communicated with radial threaded holes, and the threaded holes can be connected with a pressure test tool in a rotating mode. The left sealing joint and the right sealing joint are provided with radial glue injection holes, threads of the glue injection holes are communicated with radial threaded holes, and the radial threaded holes can be screwed with a glue injection tool and a screwed plug.
Working process
When the pipeline is connected, the plug 2 is sleeved on the pipeline in an empty mode, then the sealing joint 3 is sleeved in the empty mode, the exposed pipe end is inserted into the inner hole of the middle head 4, and the pipe end abuts against the shoulder of the stepped hole of the inner hole. The sealing nipple 3 is then screwed onto the intermediate nipple 4, but not screwed on. The plug 2 is connected with the sealing joint 3 through the thread without screwing. Then injecting high-pressure sealant or high-strength metal repairing agent from the glue injection hole of the sealing joint 3, and screwing the high-pressure sealant or high-strength metal repairing agent into the glue injection hole by using a screwed plug after the glue injection hole is filled with the high-pressure sealant or the high-strength metal repairing agent. All threads are then tightened and the high pressure sealant is squeezed into the gap between the joint and the pipeline. Due to the sealing effect of the O-shaped ring, all gaps can be sealed by the high-pressure sealant 5. At this time, a pressing tool can be screwed on the pressure testing threaded hole of the sealing joint 3, and a medium is injected to perform a pressing test. If the pressure does not leak, the pipeline to be connected and the joint are sealed and qualified. And (5) performing pipeline connection and pressure test on the other side by the same process. If the pressure test on one side has leakage, the connection is reconnected.
The utility model discloses a high pressure is sealed glues as the connecting medium, saves welding process. And sealing is finished by adopting a mode of extruding the sealant in the inner closed space by threads. Pressure test annular grooves and pressure test holes are formed in two sides of the joint, and pressure test can be independently performed on the connecting effect of the pipeline and the joint.
The above detailed description of the welding-free pipeline joint with node pressure test, which is described with reference to the embodiments, is illustrative and not restrictive, and several embodiments can be enumerated according to the limited scope, so that changes and modifications without departing from the general concept of the present invention shall fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides a exempt from to weld pipeline joint of node formula pressure testing which characterized by: including the intermediate head, control sealing joint, control the end cap, the intermediate head suit is left, right treating connecting line pipe orifice tip, and left and right sealing joint has been screwed respectively at intermediate head outside both ends, left and right sealing joint outside end has left, right end cap respectively, constitutes quick-operation joint structure, and quick-operation joint and left and right are treated and are equipped with high-pressure sealing glue film between the connecting line pipe orifice tip, constitute whole solderless quick-operation joint structure, the disc is equipped with the pressure testing annular in the sealing joint middle part, pressure testing annular and radial screw hole intercommunication.
2. The node-type pressure testing weld-free pipeline joint according to claim 1, wherein: the cross section of the intermediate joint is in a step shape, threads which are in threaded connection with the left sealing joint and the right sealing joint are arranged on step excircle threads at two ends of the intermediate joint, and a step hole-shaped circular bead is arranged on the inner circular wall of the intermediate joint.
3. The node-type pressure-tested welding-free pipeline joint according to claim 1 or 2, which is characterized in that: and O-shaped sealing ring circular grooves are arranged on two sides of a circular shoulder of the step hole shape of the inner circular surface of the middle joint, and O-shaped sealing rings are arranged in the O-shaped sealing ring circular grooves.
4. The node-type pressure testing weld-free pipeline joint according to claim 1, wherein: o-shaped sealing ring circular grooves are arranged on two sides of the pressure testing ring grooves of the left sealing joint and the right sealing joint, and O-shaped sealing rings are arranged in the O-shaped sealing ring circular grooves.
5. The node-type pressure testing weld-free pipeline joint according to claim 1, wherein: and radial glue injection holes are formed in the left sealing joint and the right sealing joint.
6. The node-type pressure testing weld-free pipeline joint according to claim 1, wherein: and O-shaped sealing ring circular grooves are formed in the inner walls of the left plug and the right plug, and O-shaped sealing rings are arranged in the O-shaped sealing ring circular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921098809.7U CN210318891U (en) | 2019-07-12 | 2019-07-12 | Node type pressure testing welding-free pipeline joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921098809.7U CN210318891U (en) | 2019-07-12 | 2019-07-12 | Node type pressure testing welding-free pipeline joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210318891U true CN210318891U (en) | 2020-04-14 |
Family
ID=70123133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921098809.7U Expired - Fee Related CN210318891U (en) | 2019-07-12 | 2019-07-12 | Node type pressure testing welding-free pipeline joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210318891U (en) |
-
2019
- 2019-07-12 CN CN201921098809.7U patent/CN210318891U/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: 20200414 |