CN219434549U

CN219434549U - Pressure bin for pipeline test

Info

Publication number: CN219434549U
Application number: CN202320395487.2U
Authority: CN
Inventors: 雒福勇; 郭金涛; 李京国; 郑吉阳; 王恩恒; 雒福港
Original assignee: Shandong Shanwei Hydraulic Machinery Co ltd
Current assignee: Shandong Shanwei Hydraulic Machinery Co ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-07-28
Anticipated expiration: 2033-03-06

Abstract

The utility model relates to a pressure bin for pipeline test, which belongs to the technical field of pipeline detection equipment, and comprises a bracket, an outer sleeve and a pipeline, wherein the outer sleeve is glidingly connected to the bracket, two ends of the outer sleeve are respectively connected with baffle rings in a threaded manner, plugs are in interference fit in inner cavities of the baffle rings, clamping grooves are respectively formed in two ends of the pipeline, one end, far away from the baffle rings, of the plugs is in interference fit in the clamping grooves, one end of the bracket is provided with an axial load assembly, the other end of the bracket is provided with a jacking assembly, the axial load assembly and the jacking assembly respectively collide with the plugs, the lateral wall of the outer sleeve is provided with a transverse load assembly, and the lateral wall of the outer sleeve is provided with a pressurizing port and a pressure relief port; the pressurizing medium is injected into the outer sleeve through the pressurizing port, the pressure condition of the pipeline on the sea bottom is simulated, the axial load assembly and the transverse load assembly can apply axial and transverse pressure to the pipeline to simulate the axial and transverse impact of the pipeline, and therefore the quality problem of the existing pipeline is detected.

Description

Pressure bin for pipeline test

Technical Field

The utility model relates to the technical field of pipeline detection equipment, in particular to a pressure bin for pipeline test.

Background

Subsea oil pipelines need to be laid in the sea floor, and because of the high subsea pressure, good pressure resistance of the pipeline is required. The pressure test of the existing pipeline is to pressurize the inside of the pipeline, and the working environment of the oil pipeline is external stress, so that the actual working environment of the oil pipeline cannot be simulated in the pressure test of the existing pipeline. In addition, the oil pipeline can be impacted axially or radially on the sea floor, and the existing pipeline pressure resistance test cannot be simulated. The pressure resistance of the oil pipeline cannot be accurately simulated, and the problems of the pipeline cannot be detected, so that the consequences caused by the fact that the pipeline with the problems is laid once the sea is laid completely are serious. Aiming at the problems in the prior art, we provide a pressure bin for pipeline test.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a pressure bin for pipeline test, which is realized by the following technical scheme:

the utility model provides a pressure storehouse for pipeline test, includes support, outer sleeve and pipeline, the outer sleeve slides and connects on the support, threaded connection has the backing ring respectively at outer sleeve both ends, interference fit has the end cap in the backing ring inner chamber, the end cap is echelonment, pipeline and outer sleeve coaxial setting, joint groove has been seted up respectively at the pipeline both ends, joint groove diameter is greater than the pipeline internal diameter and is less than the external diameter of pipeline, the end interference fit that the backing ring was kept away from to the end cap is in the joint groove, the pipeline is close to the one end card of backing ring on the shoulder of end cap, support one end is provided with axial load subassembly, and its other end sets up the tight subassembly of top, axial load subassembly and tight subassembly of top are contradicted with the end cap respectively, be provided with transverse load subassembly on the outer sleeve lateral wall, be provided with pressurization mouth and pressure release mouth on the lateral wall of outer sleeve.

The utility model is further provided with: the axial load assembly comprises an axial loading oil cylinder and a first top cap, the cylinder body of the axial loading oil cylinder is fixedly connected to the support, the first top cap is fixedly connected to a moving rod of the axial loading oil cylinder, and the first top cap is abutted to a plug of the pipeline far away from the jacking assembly.

The utility model is further provided with: the jacking assembly comprises a screw and a second top cap, the screw is in threaded connection with the support, the second top cap is fixedly connected to one end of the screw, which is close to the first top cap, and the second top cap is abutted to a plug of the pipeline, which is far away from the first top cap.

The utility model is further provided with: the transverse loading assembly comprises a transverse loading oil cylinder and a top ring, the cylinder body of the transverse loading oil cylinder is fixedly connected to the outer sleeve, the top ring is sleeved on the pipeline, and the moving rod of the transverse loading oil cylinder is abutted to the top ring.

The utility model is further provided with: the one end that keeps off the ring and is close to the pipeline has seted up first seal groove and second seal groove, first seal groove is located the lateral wall that keeps off the ring, the second seal groove is located the inside wall that keeps off the ring, the joint has first sealing washer in the first seal groove, the joint has the second sealing washer in the second seal groove.

The utility model is further provided with: the inner side wall of the baffle ring is in an arc-shaped arrangement.

The utility model is further provided with: and a chamfer is machined at one end of the plug, which is far away from the pipeline.

The utility model is further provided with: the outer sleeve fixedly connected with U type support, support parallel arrangement has two sets of, the support lower extreme rotates and is connected with the gyro wheel, offer the spout that supplies the gyro wheel to slide on the support diapire.

In summary, the beneficial technical effects of the utility model are as follows:

before the test, the pipeline is firstly installed in the outer sleeve, and after the pipeline is installed, the pipeline is tightly propped by the propping assembly and the axial load assembly, and the pressure relief opening is blocked; during the test, then pour into the pressurized medium (oil or water) through the clearance between outside sleeve and the pipeline of pressurization mouth, simulate the pressure condition that the pipeline received at the seabed, axial load subassembly and horizontal load subassembly can apply axial and horizontal pressure to the pipeline, simulate the axial and horizontal impact that the pipeline received at the seabed, this pressure storehouse can simulate the actual operational environment of pipeline to detect the quality problem that exists in the pipeline that has, avoid having the pipeline of problem to put into use, cause the leakage of oil, polluted environment.

Drawings

FIG. 1 is a top view for showing the overall structure of the present embodiment;

FIG. 2 is a cross-sectional view taken along section line A-A of FIG. 1;

FIG. 3 is a partially enlarged schematic illustration of portion B of FIG. 2;

FIG. 4 is a cross-sectional view taken along section line C-C of FIG. 2;

fig. 5 is a partially enlarged schematic view of the portion D in fig. 2.

Reference numerals: 1. a bracket; 11. a chute; 2. an outer sleeve; 21. a pressurizing port; 22. a pressure relief port; 23. a support; 24. a roller; 3. a pipe; 31. a clamping groove; 4. a baffle ring; 41. a first seal groove; 42. a second seal groove; 43. a first seal ring; 44. a second seal ring; 5. a plug; 6. an axial load assembly; 61. an axial loading oil cylinder; 62. a first top cap; 7. a jacking component; 71. a screw; 72. a second top cap; 8. a lateral load assembly; 81. a transverse loading oil cylinder; 82. and a top ring.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

Examples

As shown in fig. 1-5, the pressure bin for pipeline test disclosed by the utility model comprises a bracket 1, an outer sleeve 2 and a pipeline 3, wherein the outer sleeve 2 is glidingly connected to the bracket 1, two ends of the outer sleeve 2 are respectively connected with a baffle ring 4 in a threaded manner, a plug 5 is in interference fit in an inner cavity of the baffle ring 4, the plug 5 is in a ladder shape, the pipeline 3 and the outer sleeve 2 are coaxially arranged, two ends of the pipeline 3 are respectively provided with a clamping groove 31, the diameter of the clamping groove 31 is larger than the inner diameter of the pipeline 3 and smaller than the outer diameter of the pipeline 3, one end of the plug 5, far away from the baffle ring 4, is in interference fit in the clamping groove 31, one end, close to the baffle ring 4, of the pipeline 3 is clamped on a shaft shoulder of the plug 5, one end of the bracket 1 is provided with an axial load component 6, and the other end of the axial load component 6 and the jacking component 7 are respectively abutted against the plug 5, so that the pipeline 3 is clamped. The lateral load assembly 8 is arranged on the side wall of the outer sleeve 2, and the pressurizing opening 21 and the pressure relief opening 22 are arranged on the side wall of the outer sleeve 2. Before the test, the pipeline 3 is firstly installed in the outer sleeve 2, after the pipeline 3 is installed, the pipeline 3 is tightly propped by the propping assembly 7 and the axial load assembly 6, and a closed space is formed between the outer sleeve 2 and the pipeline 3 (two ends are sealed by the baffle rings 4). During the test, block up pressure release mouth 22, then pour into pressurized medium (oil or water) into the clearance between outside sleeve 2 and the pipeline 3 through the pressure mouth 21, simulate the pressure condition that pipeline 3 received at the seabed, axial load subassembly 6 and horizontal load subassembly 8 can apply axial and horizontal pressure to pipeline 3, simulate the axial and horizontal impact that pipeline 3 received at the seabed, this pressure storehouse can simulate pipeline 3 actual operational environment, thereby detect the quality problem that has pipeline 3 to exist, avoid having the pipeline 3 of problem to put into use, cause leakage of oil, polluted environment.

The axial load assembly 6 comprises an axial loading oil cylinder 61 and a first top cap 62, the cylinder body of the axial loading oil cylinder 61 is fixedly connected to the bracket 1, the first top cap 62 is fixedly connected to a moving rod of the axial loading oil cylinder 61, and the first top cap 62 is abutted against the plug 5 of the pipeline 3 far away from the jacking assembly 7. When an axial load is applied to the pipeline 3, the axial loading oil cylinder 61 is started, and the moving rod of the axial loading oil cylinder 61 pushes the first top cap 62 to apply an axial pressure to the pipeline 3 so as to simulate the axial impact of the pipeline 3 on the sea floor.

The jacking component 7 comprises a screw 71 and a second top cap 72, the screw 71 is in threaded connection with the bracket 1, the second top cap 72 is fixedly connected to one end of the screw 71, which is close to the first top cap 62, and the second top cap 72 is abutted against the plug 5 of the pipeline 3, which is far away from the first top cap 62.

The transverse load assembly 8 comprises a transverse load cylinder 81 and a top ring 82, the cylinder body of the transverse load cylinder 81 is fixedly connected to the outer sleeve 2, the top ring 82 is sleeved on the pipeline 3, and when the transverse load assembly is installed, the top ring 82 can be sleeved on the pipeline 3 in advance, and a moving rod of the transverse load cylinder 81 is abutted against the top ring 82. When a transverse load is applied to the pipeline 3, the transverse loading oil cylinder 81 is started, and the moving rod of the transverse loading oil cylinder 81 pushes the top ring 82 to apply transverse pressure to the pipeline 3 so as to simulate the transverse impact of the pipeline 3 on the sea bottom.

The end that keeps off ring 4 is close to pipeline 3 has seted up first seal groove 41 and second seal groove 42, and first seal groove 41 is located on the lateral wall of keeping off ring 4, and second seal groove 42 is located on the inside wall of keeping off ring 4, and the joint has first sealing washer 43 in the first seal groove 41, and the joint has second sealing washer 44 in the second seal groove 42. The first seal ring 43 and the second seal ring 44 are both custom polyurethane seal rings, thereby ensuring reliability of the pressure chamber seal at higher pressures. The inner side wall of the baffle ring 4 is arc-shaped, so that the plug 5 can not influence the baffle ring 4 to deform when the pipeline 3 is transversely stressed and bent.

In order to avoid damage to the second sealing ring when the plug 5 is installed, a chamfer is machined at one end of the plug 5 away from the pipeline 3.

The outer sleeve 2 is fixedly connected with a U-shaped support 23, the support 23 is provided with two groups in parallel, the lower end of the support 23 is rotationally connected with a roller 24, and the bottom wall of the bracket 1 is provided with a chute 11 for sliding the roller 24.

Claims

1. The utility model provides a pressure storehouse for pipeline test, its characterized in that, including support (1), outer sleeve (2) and pipeline (3), outer sleeve (2) slide and connect on support (1), threaded connection has stop ring (4) respectively at outer sleeve (2) both ends, interference fit has end cap (5) in stop ring (4) inner chamber, end cap (5) are echelonment, pipeline (3) and outer sleeve (2) coaxial setting, joint groove (31) have been seted up respectively at pipeline (3) both ends, joint groove (31) diameter is greater than pipeline (3) internal diameter and is less than the external diameter of pipeline (3), the one end interference fit that stop ring (4) was kept away from to end cap (5) is in joint groove (31), one end card that stop ring (4) were close to pipeline (3) is on the shaft shoulder of end cap (5), support (1) one end is provided with axial load subassembly (6), and its other end is provided with tight subassembly (7) in top, axial load subassembly (6) and tight subassembly (7) are contradicted respectively with end cap (5), lateral wall (21) are provided with pressure release mouth (2) on outer sleeve (2).

2. The pressure bin for pipeline test according to claim 1, wherein the axial load assembly (6) comprises an axial load cylinder (61) and a first top cap (62), a cylinder body of the axial load cylinder (61) is fixedly connected to the bracket (1), the first top cap (62) is fixedly connected to a moving rod of the axial load cylinder (61), and the first top cap (62) is abutted against a plug (5) of the pipeline (3) far away from the jacking assembly (7).

3. The pressure bin for pipeline test according to claim 2, wherein the tightening assembly (7) comprises a screw (71) and a second top cap (72), the screw (71) is in threaded connection with the support (1), the second top cap (72) is fixedly connected to one end, close to the first top cap (62), of the screw (71), and the second top cap (72) is abutted against a plug (5), far away from the first top cap (62), of the pipeline (3).

4. A pressure bin for pipeline tests according to claim 3, characterized in that the transverse loading assembly (8) comprises a transverse loading oil cylinder (81) and a top ring (82), the cylinder body of the transverse loading oil cylinder (81) is fixedly connected to the outer sleeve, the top ring (82) is sleeved on the pipeline (3), and the moving rod of the transverse loading oil cylinder (81) is abutted against the top ring (82).

5. The pressure bin for pipeline test according to claim 4, wherein a first sealing groove (41) and a second sealing groove (42) are formed in one end, close to a pipeline (3), of the baffle ring (4), the first sealing groove (41) is located on the outer side wall of the baffle ring (4), the second sealing groove (42) is located on the inner side wall of the baffle ring (4), a first sealing ring (43) is clamped in the first sealing groove (41), and a second sealing ring (44) is clamped in the second sealing groove (42).

6. The pressure bin for pipeline test according to claim 5, wherein the inner side wall of the baffle ring (4) is arranged in an arc shape.

7. A pressure chamber for pipeline testing according to claim 6, characterized in that the end of the plug (5) remote from the pipeline (3) is provided with a chamfer.

8. The pressure bin for pipeline test according to claim 7, wherein the outer sleeve (2) is fixedly connected with a U-shaped support (23), the two groups of supports (23) are arranged in parallel, the lower end of the support (23) is rotatably connected with a roller (24), and a chute (11) for sliding the roller (24) is formed in the bottom wall of the support (1).