CN217059641U - Compound pipe hydraulic test connects frock - Google Patents
Compound pipe hydraulic test connects frock Download PDFInfo
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- CN217059641U CN217059641U CN202220378193.4U CN202220378193U CN217059641U CN 217059641 U CN217059641 U CN 217059641U CN 202220378193 U CN202220378193 U CN 202220378193U CN 217059641 U CN217059641 U CN 217059641U
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Abstract
A composite pipe hydraulic test joint tool is characterized in that a sealing washer ring groove is formed in the end face of a water inlet end joint head, and annular protrusions are formed on the periphery of the sealing washer ring groove; the tail part of the water inlet end joint is provided with a conical hole and an internal threaded hole along the axis, and the conical hole is communicated with the internal threaded hole; the outer surface of the threaded movable joint is provided with an annular notch, the inner surface of the threaded movable joint is provided with an internal thread, a space is reserved between the internal thread and the bottom of the threaded movable joint, and the bottom of the threaded movable joint is provided with a through hole; the afterbody of water inlet end joint passes the through-hole of screw thread union, and annular bulge and screw thread union internal thread bottom space form clearance fit, and the internal thread and the composite pipe threaded connection of screw thread union, it is airtight through the sealing washer in the sealing washer annular of water inlet end joint, and the internal thread hole and the hydrostatic test machine hose nipple of water inlet end joint are connected. The threaded plug is connected with the other end of the composite pipe. The utility model provides a traditional compound pipe water pressure test connect waste time and energy to and the scheduling problem of leaking.
Description
Technical Field
The utility model relates to hydrostatic test frock field, especially a compound pipe hydrostatic test connects frock.
Background
In the field of oil field pipeline conveying media, the steel pipeline conveying media generally have the conditions of corrosion, abrasion and the like. These problems directly affect the length of time that the pipe can be used, although it is common to pattern the inner wall of the pipe or use some other method of corrosion protection, with only minor effects. The composite pipe has the advantages of light weight, high strength, chemical corrosion resistance, convenient processing and forming and the like, is increasingly applied to oil fields, and gradually replaces steel pipelines. Before the composite pipe is used in construction, a new composite pipe and a composite pipe which has been operated for one year are subjected to laboratory hydraulic pressure tests in the standards according to the relevant standards of a natural gas pipeline, the two composite pipes are subjected to the hydraulic pressure tests of 1.5MPa, 3MPa and 4MPa respectively, finally, the two composite pipes are subjected to the blasting tests, the composite pipes expand firstly and then blast under the action of pressure, and the actual blasting is very strong in instantaneous damage. When the traditional laboratory is used for pressure testing, a welding and cutting method is generally adopted, and the method wastes time and has low efficiency to influence the process of the composite pipe; or adopt and withhold the compound pipe hydrostatic test frock joint of connection formula locking, because its connection is loaded down with trivial details to the joint core pipe of processing has the possibility of radial shrinkage, makes the effective latus rectum of withholding back joint and the nominal latus rectum of body appear great error, often takes place phenomenons such as fracture, deviate from, seepage and leak, thereby makes the inaccurate composite pipe pressure testing data of experimental result influence, especially probably harm the pressure testing hose when water pressure is too high.
Disclosure of Invention
An object of the utility model is to provide a compound pipe hydrostatic test connects frock, this frock has solved traditional compound pipe hydrostatic test and has connected the scheduling problem that wastes time and energy to and leak.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides a compound pipe water pressure test connects frock which characterized in that: the water inlet end joint comprises a water inlet end joint and a threaded movable joint, wherein a sealing gasket ring groove is arranged on the end face of the water inlet end joint, and annular bulges are arranged on the periphery of the sealing gasket ring groove; the tail part of the water inlet end joint is provided with a conical hole and an internal threaded hole along the axis, and the conical hole is communicated with the internal threaded hole;
the outer surface of the threaded union is provided with an annular notch, the inner surface of the threaded union is provided with an internal thread, a space is reserved between the internal thread and the bottom of the threaded union, and the bottom of the threaded union is provided with a through hole;
the afterbody of water inlet end joint passes the through-hole of screw thread union, and annular bulge and screw thread union internal thread bottom space form clearance fit, and the internal thread and the composite pipe threaded connection of screw thread union, it is airtight through the sealing washer in the sealing washer annular of water inlet end joint, and the internal thread hole and the hydrostatic test machine hose nipple of water inlet end joint are connected.
The conical surface sealing angle of the conical hole of the water inlet end joint is 30 degrees.
The composite pipe is characterized by further comprising a threaded plug, the threaded plug comprises a shaft head, a shaft neck and a shaft body, the shaft head is hexagonal, the shaft neck and the shaft body are cylindrical, external threads are arranged outside the shaft body, a sealing washer ring groove is arranged on the end face of the shaft body, and the threaded plug is connected with internal threads at the other end of the composite pipe and is sealed through a sealing washer.
The external thread outside the shaft body of the threaded plug and the internal thread of the threaded movable joint can be in threaded connection.
The utility model has the advantages that:
1. the utility model is divided into an end cap and a joint, wherein the end cap is directly connected with the composite pipe through screw threads, the joint is connected with the other end of the composite pipe through screw threads after being sleeved into the screw threads, and sealing gaskets are arranged at the two joints, so that the sealing effect is good;
2. the water inlet port adopts the combination of the internal thread through hole and the conical through hole in the axis direction, the connection with the pressure test hose is tight and more reliable, and the leak-proof performance of the hydrostatic test joint is good.
3. Simple structure, convenient to use to convenient to carry unites two into one through threaded connection phase-match between end cap and the joint when not, is difficult for losing.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a threaded plug;
FIG. 3 is a cross-sectional view of the water inlet end fitting;
FIG. 4 is a cross-sectional view of a threaded union.
Detailed Description
The following description of the present invention will be made with reference to the accompanying drawings 1-4.
Referring to FIGS. 1-4: the end surface of the head part of the water inlet end joint 6 of the utility model is provided with a sealing washer ring groove 63, and the periphery is provided with an annular bulge; the tail part of the water inlet end joint 6 is provided with a tapered hole 62 and an internal threaded hole 61 along the axis, and the tapered hole 62 is communicated with the internal threaded hole 61; the outer surface of the threaded movable joint 4 is provided with an annular notch 42, and the annular notch 42 is convenient for clamping calipers when the threaded movable joint 4 is installed; the inner surface is provided with an internal thread 41, a space is reserved between the internal thread 41 and the bottom, and the bottom of the threaded movable joint 4 is provided with a first through hole 43; the tail of the water inlet end joint 6 penetrates through the second through hole 51 of the threaded movable joint 4, the annular bulge and the bottom space of the internal thread of the threaded movable joint form clearance fit, the internal thread 41 of the threaded movable joint 4 is in threaded connection with the composite pipe, the sealing ring in the sealing ring groove second 63 of the water inlet end joint 6 is closed, and the internal thread hole of the water inlet end joint 6 is connected with the hose connector of the hydrostatic testing machine. The conical hole 62 of the water inlet end joint has a conical surface sealing angle of 30 degrees, and is tightly attached to the conical surface of the hose joint of the hydrostatic testing machine, so that the sealing effect is achieved. The threaded plug 1 comprises a plug 11, a journal 12 and a shaft body 13, wherein the plug 11 is hexagonal, a torque wrench is convenient to pre-tighten, the journal 12 and the shaft body 13 are cylindrical, an external thread is arranged outside the shaft body 13, a sealing washer ring groove 14 is arranged on the end face of the shaft body 13, and the threaded plug 4 is connected with an internal thread at the other end of the composite pipe 3 and sealed through a sealing washer.
When the composite pipe is installed, the threaded plug 1 is connected with the composite pipe locking joint 2 through threads, two ends of the composite pipe locking joint are sealed through the sealing ring, and then the composite pipe locking joint is pre-tightened through the torque wrench; the tail part of the water inlet end joint 6 penetrates through a second through hole 51 of the threaded movable joint 4; secondly, the other end of the composite pipe is in threaded connection with a threaded movable joint 4, two ends of the composite pipe are sealed by a sealing ring, and the composite pipe is pre-tightened by using a pipe wrench; finally, the hose connector of the pressure test machine is connected to the internal thread through hole 61. And after the parts are installed, performing a hydrostatic test.
When the device is not used, the threaded plug 1 and the threaded union 4 can be connected into a whole through threads, so that the device is convenient to store and transport.
Claims (4)
1. The utility model provides a compound pipe hydraulic test connects frock which characterized in that: the water inlet end joint comprises a water inlet end joint and a threaded movable joint, wherein a sealing gasket ring groove is arranged on the end face of the water inlet end joint, and annular bulges are arranged on the periphery of the sealing gasket ring groove; the tail part of the water inlet end joint is provided with a conical hole and an internal threaded hole along the axis, and the conical hole is communicated with the internal threaded hole; the outer surface of the threaded movable joint is provided with an annular notch, the inner surface of the threaded movable joint is provided with an internal thread, a space is reserved between the internal thread and the bottom of the threaded movable joint, and the bottom of the threaded movable joint is provided with a through hole; the tail of the water inlet end joint penetrates through a through hole of the threaded union, the annular bulge and the bottom space of the internal thread of the threaded union form clearance fit, the internal thread of the threaded union is in threaded connection with the composite pipe, a sealing ring in a sealing ring groove of the water inlet end joint is closed, and an internal thread hole of the water inlet end joint is connected with a hose joint of a hydrostatic testing machine.
2. The composite pipe hydraulic test joint tool according to claim 1, characterized in that: the conical surface sealing angle of the conical hole of the water inlet end joint is 30 degrees.
3. The composite pipe hydraulic test joint tool according to claim 1 or 2, characterized in that: the composite pipe is characterized by further comprising a threaded plug, the threaded plug comprises a shaft head, a shaft neck and a shaft body, the shaft head is hexagonal, the shaft neck and the shaft body are cylindrical, external threads are arranged outside the shaft body, a sealing washer ring groove is arranged on the end face of the shaft body, and the threaded plug is connected with internal threads at the other end of the composite pipe and is sealed through a sealing washer.
4. The composite pipe hydraulic test joint tool according to claim 3, characterized in that: the external thread outside the shaft body of the threaded plug and the internal thread of the threaded movable joint can be connected into a whole through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220378193.4U CN217059641U (en) | 2022-02-24 | 2022-02-24 | Compound pipe hydraulic test connects frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220378193.4U CN217059641U (en) | 2022-02-24 | 2022-02-24 | Compound pipe hydraulic test connects frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217059641U true CN217059641U (en) | 2022-07-26 |
Family
ID=82488078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220378193.4U Active CN217059641U (en) | 2022-02-24 | 2022-02-24 | Compound pipe hydraulic test connects frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217059641U (en) |
-
2022
- 2022-02-24 CN CN202220378193.4U patent/CN217059641U/en active Active
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