CN210319066U

CN210319066U - Linear traction test device for pipeline internal detector

Info

Publication number: CN210319066U
Application number: CN201920864143.5U
Authority: CN
Inventors: 翁志良; 贾开明; 何帮喜
Original assignee: Zhiyun'an Technology Beijing Co ltd
Current assignee: Zhiyun'an Technology Beijing Co ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-04-14
Anticipated expiration: 2029-06-11

Abstract

The utility model provides a pipeline internal detector straight line tractive test device, which comprises a test liquid box, a main winch, an auxiliary winch, a sending bracket, a receiving bracket, a tractive test pipe and a pipeline internal detector, wherein the tractive test pipe can simulate the damage of a required pipeline and is started by the sending bracket under the action of the main winch and/or the auxiliary winch and moves to the receiving bracket through the tractive test pipe; various types of defects are preset in the pulling test tube and are used for being detected by the detector in the pipeline to obtain test data.

Description

Linear traction test device for pipeline internal detector

Technical Field

The utility model relates to a pipeline internal detector tests technical field, in particular to pipeline internal detector straight line tractive test device.

Background

The pipeline is an important mode for long-distance transportation of petroleum and natural gas, the pipeline works under high pressure, long distance and severe external environment, various defects are generated on the pipe wall due to various reasons such as transmission medium corrosion, stress, construction damage, natural disasters and the like, the defects have great harmfulness to the safe operation of the pipeline, and early detection of the defects is an important means for maintaining the maintenance work of the pipeline and the integrity of the pipeline. At present, the in-service detection method for pipeline defects is a pipeline internal detection technology. After the in-pipeline detector is developed, the performance of the in-pipeline detector needs to be comprehensively tested and tested through a traction test, and the identification and calibration of the artificial defects are completed.

At present, dry linear traction test devices are mostly adopted in the traction test of the existing pipeline internal detector, and the influence of the traction test in a liquid environment is not simulated. On the other hand, the number of defects of the pull test pipeline is small, more types of defects cannot be effectively covered, and effective test coverage of a defect quantification algorithm is influenced.

The embodiment of the utility model provides a detector straight line tractive test device and tractive test method in pipeline has solved the tractive test influence under the liquid environment of not simulating among the prior art to and the defect quantity of tractive test pipeline is less, can not adopt the problem of artificial intelligence method to confirm the quantization relation of defect signal and defect position, classification, length, width, degree of depth information effectively.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pipeline internal detector straight line tractive test device, concrete scheme is as follows:

a linear traction test device for an in-pipeline detector comprises a test liquid tank, a main winch, an auxiliary winch, a sending bracket and a receiving bracket, wherein liquid required by a test is filled in the test liquid tank; various types of defects are preset in the pulling test tube and are used for being detected by the detector in the pipeline to obtain test data.

Furthermore, the test liquid tank is provided with two hoisting openings, the positions of the hoisting openings approximately correspond to the sending bracket and the receiving bracket, and the hoisting openings are used for placing or taking out the detector in the pipeline from the test liquid tank.

Furthermore, the test liquid box is provided with two leakage-proof holes for passing through the traction cable of the main winch and the auxiliary winch.

Furthermore, a liquid discharge valve is arranged on the test liquid box.

Furthermore, the receiving bracket and the sending bracket comprise a tray and supporting legs, the tray is made of non-magnetic materials, and the height of the supporting legs is adjustable.

Further, the traction test tube comprises a sending end reducer matched with the sending bracket and a receiving end reducer matched with the receiving bracket in the axial direction; the traction test tube further comprises sizing pipelines for simulating different types of defects in the axial direction between the sending end reducer and the receiving end reducer.

Further, the sizing pipe can be replaced or combined.

The method for performing the linear pulling test by using the in-pipeline detector comprises the following steps:

s1: injecting test liquid meeting test requirements into a test liquid box in the linear traction test device of the in-pipeline detector;

s2: placing an in-pipeline detector on the sending bracket, and connecting the in-pipeline detector with a traction part of a main winch and/or an auxiliary winch;

s3: adjusting a traction test tube according to the requirements of the detection test;

s4: after the in-pipeline detector is started, the in-pipeline detector reaches the receiving bracket through the traction test pipe under the driving of the main winch and/or the auxiliary winch to obtain test data;

s5: and taking the in-pipeline detector out of the receiving bracket, and reading out the test data from the in-pipeline detector for use.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a test apparatus according to the present invention;

FIG. 2 is a schematic view of a water tank of an embodiment of the testing apparatus of the present invention;

FIG. 3 is a schematic view of a receiving and sending cradle according to an embodiment of the present invention;

fig. 4 is a schematic view of a pull test tube structure of an embodiment of the test apparatus of the present invention;

fig. 5 is a step diagram of the testing method of the present invention.

Wherein: 1, a main winch; 2-receiving a carrier; 3-test water tank; 4-an in-pipe detector; 5-pulling the test tube; 6-tap water; 7-a delivery tray; 8-auxiliary winch; 9-leakage-proof hole I; 10-hoisting the opening I; 11-a water tank cover plate; 12-hoisting a second opening; 13-leakage-proof holes II; 14-a drain valve; 15-a tray; 16-a leg; 17-receiving end reducer pipe; 18-circumferential groove defect tube; 19-axial groove defect tube; 20-cratered defect tube; 21-general defective tube; 22-transmitting end reducer pipe.

Detailed Description

The test device in the present invention is further described in detail with reference to the accompanying drawings:

in an embodiment of the present invention:

as shown in fig. 1, a linear pull test device for an in-pipe detector includes: the system comprises a main winch 1, a receiving bracket 2, a test water tank 3, an in-pipeline detector 4, a traction test pipe 5, tap water 6, a sending bracket 7 and an auxiliary winch 8. Wherein, two ends of the in-pipeline detector 4 are respectively connected with the main hoist 1 and the auxiliary hoist 8 through steel wire ropes; the in-pipeline detector 4 passes through the traction test pipe 5 through the traction of the main winch 1; the receiving bracket 2 and the sending bracket 4 are respectively arranged at two ends of the traction test tube 5; the in-pipeline detector 4, the pulling test tube 5, the receiving bracket 2 and the sending bracket 7 are all placed in the test water tank 3, and the test water tank is filled with the tap water 6.

As shown in fig. 2, the top of the test water tank 3 is provided with two in-pipeline detector hoisting openings, namely a first hoisting opening 10 and a second hoisting opening 12, the left end and the right end are respectively provided with a first leak-proof hole 9 and a second leak-proof hole 13, the first leak-proof hole 9 and the second leak-proof hole 13 are sealed by plastic soft sealing materials, water leakage in the test water tank 3 is avoided, and the bottom of the test water tank 3 is provided with a drainage valve 14.

As shown in fig. 3, the receiving tray 2 and the sending tray 7 are both composed of a tray 15 and legs 16, the tray 15 is in the shape of a semicircular tube and is made of stainless steel or non-magnetic conductive material, and the total number of the legs 16 is four, so that the height is adjustable.

As shown in fig. 4, the pulling test tube 5 specifically includes: the pipe comprises a receiving end reducer pipe 17, a circumferential groove defect pipe 18, an axial groove defect pipe 19, a pit-shaped defect pipe 20, a general defect pipe 21 and a sending end reducer pipe 22, wherein all the pipes are welded in sequence. The pipe diameter of one end of the receiving end reducer pipe 17 is the same as that of the circumferential groove defect pipe 18, and the pipe diameter of the other end of the receiving end reducer pipe is larger than that of the circumferential groove defect pipe 18. The pipe diameter of one end of the sending end reducer pipe 22 is the same as that of the general defective pipe 21, and the pipe diameter of the other end of the sending end reducer pipe 22 is larger than that of the general defective pipe 21. The number of the circumferential groove defects of the circumferential groove defect tube 18 is 250, the number of the axial groove defects of the axial groove defect tube 19 is 250, the number of the crater defect tube is 250, the number of the common defect tube is 250, and the total number of the defects on the four defect tubes is 1000.

As shown in fig. 5, a straight pull test device for an in-pipe detector can be tested by the following steps:

1. filling tap water into a test water tank in the in-pipeline detector linear traction test device;

2. connecting a steel wire rope connected with a main winch 1 to the front end of the in-pipeline detector 4 through a first leakage-proof hole 9, and connecting a steel wire rope connected with an auxiliary winch 8 to the rear end of the in-pipeline detector 4 through a second leakage-proof hole 13;

3. after four sections of circumferential groove defective pipes 18, axial groove defective pipes 19, pit-shaped defective pipes 20 and general defective pipes 21 which respectively contain 250 defects and are to be detected and have the diameter of 325mm and the length of 20m are assembled in sequence by welding to form pipe sections to be detected, a receiving end reducer pipe 17 and a transmitting end reducer pipe 22 which have the diameter of 325mm, the wall thickness of 15mm and the length of 3m are respectively welded at two ends of the pipe sections to be detected, and the traction test pipe 5 with the structure shown in the figure 4 is formed;

4. the receiving bracket 2 and the sending bracket 7 are formed by assembling and adjusting a tray 15 and supporting legs 16, wherein the tray 15 is in a semicircular pipe shape and is made of stainless steel or non-magnetic conductive materials, and the purpose is to facilitate the main winch 1 to pull the in-pipeline detector 4. The height of the supporting legs 16 is adjustable, so that the height of the tray 15 is consistent with the axial height of the pull test tube 5;

5. starting an in-pipeline detector 4, wherein the in-pipeline detector is driven by a main winch and/or an auxiliary winch to pass through the traction test pipe to reach the receiving bracket to obtain test data;

6. and taking the in-pipeline detector out of the receiving bracket, and reading out the test data from the in-pipeline detector for use.

Claims

1. A linear traction test device for an in-pipeline detector comprises a test liquid tank, a main winch, an auxiliary winch, a sending bracket and a receiving bracket, wherein liquid required by a test is filled in the test liquid tank; various types of defects are preset in the pulling test tube and are used for being detected by the detector in the pipeline to obtain test data.

2. The in-pipe detector linear pull test device of claim 1, wherein the test solution tank has two lifting openings at positions substantially corresponding to the sending bracket and the receiving bracket for placing or removing the in-pipe detector into or from the test solution tank.

3. The in-pipeline detector linear pull test device according to claim 2, wherein the test liquid tank is provided with two anti-leakage holes for passing through the pulling rope of the main winch and the auxiliary winch.

4. The in-pipe detector linear pull test device of claim 3, wherein the test liquid tank is provided with a drain valve.

5. The in-pipe detector linear pull test device of claim 4, wherein the receiving bracket and the sending bracket comprise a tray and legs, the tray is made of non-magnetic materials, and the legs are adjustable in height.

6. The in-pipe detector linear pull test device of any one of claims 1-5, wherein the pull test tube comprises a sending end reducer cooperating with a sending bracket and a receiving end reducer cooperating with a receiving bracket in an axial direction; the traction test tube further comprises sizing pipelines for simulating different types of defects in the axial direction between the sending end reducer and the receiving end reducer.

7. The inline detector straight pull test apparatus of claim 6, wherein the sizing pipe is replaceable or combinable.