CN210720251U

CN210720251U - Device for detecting passing capacity of magnetic flux leakage detector

Info

Publication number: CN210720251U
Application number: CN201921553151.4U
Authority: CN
Inventors: 王继锋; 胡胜生; 浦哲; 任彬; 侯少星; 左延田; 陈德禄
Original assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute
Current assignee: Shanghai Special Equipment Supervision and Inspection Technology Institute
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-06-09
Anticipated expiration: 2029-09-18

Abstract

The utility model provides a detection apparatus for magnetic leakage detector throughput capacity, supply with unit, a ball section of thick bamboo, receive a ball section of thick bamboo and pipeline including the fluid, the both ends of pipeline respectively with a ball section of thick bamboo reaches receive a ball section of thick bamboo intercommunication, the fluid supply with a ball section of thick bamboo intercommunication does a ball section of thick bamboo provides the fluid, and a magnetic leakage detector is followed a ball section of thick bamboo gets into the pipeline, and fluid supplementary lower passing through the pipeline gets into receive in the ball section of thick bamboo. Utilize the fluid to make both ends production pressure differential around the magnetic leakage detector to the drive magnetic leakage detector removes in the pipeline, can effectively detect the phenomenon that whether the magnetic leakage detector can exist the card pipe before the magnetic leakage detector drops into actual detection, tests out the strong and weak of the throughput capacity of magnetic leakage detector, and the development of supplementary magnetic leakage detector, whole device simple structure easily realizes.

Description

Device for detecting passing capacity of magnetic flux leakage detector

Technical Field

The utility model relates to a magnetic leakage detection area especially relates to a detection device of magnetic leakage detector throughput capacity.

Background

The magnetic flux leakage detection is a mature and widely-applied pipeline internal detection technology, can detect metal loss defects such as corrosion and mechanical damage of the inner wall and the outer wall of a pipeline, has low requirement on the cleanliness of the detected pipeline, and can be used for oil pipelines or gas pipelines. Through magnetic leakage detection, defects can be identified, positioned and quantitatively counted, and the method is an important means for reasonably maintaining the conduit and carrying out the management work of the integrity of the conduit.

The leakage magnetic detector is generally used as a detection tool for leakage magnetic detection at home and abroad, and because the leakage magnetic detector can not provide power, the leakage magnetic detector is driven to move in the pipeline by pressure difference generated by conveying fluid in the pipeline in the leakage magnetic detection process, so that various defects on the pipeline wall are detected. However, the current detection mode has the following defects:

1) when the sealing between the magnetic flux leakage detector and the inner wall of the pipeline fails, the magnetic flux leakage detector is easily clamped in the pipeline and cannot move;

2) when the magnetic flux leakage detector passes through the elbow of the pipeline, the magnetic flux leakage detector is easily clamped at the elbow because the length of the magnetic flux leakage detector is too long;

in the pipeline magnetic leakage detection work in the past, magnetic leakage detector card pipe event appears many times, leads to unable realization effective detection, causes the huge waste of manpower and materials, also brings huge potential safety hazard simultaneously. Therefore, in order to ensure the normal operation of the leakage flux detection operation, it is necessary to ensure that the leakage flux detector can smoothly pass through the duct. In view of the above, there is a need for an apparatus for effectively detecting the throughput of a leakage flux detector, which can be tested before the leakage flux detector is put into practical detection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a detection device of magnetic leakage detector throughput can detect the power of the throughput of magnetic leakage detector, the development of supplementary magnetic leakage detector.

In order to achieve the above object, the utility model provides a magnetic leakage detector passes through detection device of ability, including fluid supply unit, a ball serving section of thick bamboo, receive a ball section of thick bamboo and pipeline, the both ends of pipeline respectively with a ball serving section of thick bamboo reaches receive a ball section of thick bamboo intercommunication, fluid supply unit with a ball serving section of thick bamboo intercommunication does a ball section of thick bamboo provides fluid, and a magnetic leakage detector is followed a ball serving section of thick bamboo gets into the pipeline, and fluid supplementary lower passing through the pipeline gets into receive in the ball section of thick bamboo.

Furthermore, two ends of the pipeline are respectively welded with the ball sending cylinder and the ball collecting cylinder.

Further, a feeding hole is formed in the ball distributing cylinder, a discharging hole is formed in the ball collecting cylinder, the fluid supply unit is communicated with the feeding hole to supply fluid to the ball distributing cylinder through the feeding hole, and the fluid supply unit is communicated with the discharging hole to recycle the fluid.

Further, still be provided with an exhaust port on the receipts ball section of thick bamboo, the exhaust port is used for discharging the air in the pipeline.

Further, the fluid is water.

Further, the fluid supply unit comprises a water tank and a delivery pump, the water tank is used for storing water, one end of the delivery pump is connected with the water tank through a hose, and the other end of the delivery pump is connected with the feed port through a hose so as to convey the water in the water tank to the ball dispensing cylinder.

Furthermore, the pipeline comprises a plurality of elbows and a plurality of straight pipes, and two adjacent straight pipes are connected through one elbow.

Further, the planar pattern of the pipe is U-shaped, Z-shaped or S-shaped.

Further, a pressure gauge is further arranged on the balling barrel and used for detecting the pressure in the pipeline.

Furthermore, all be provided with the quick-open blind plate on a ball distributing cylinder and the ball receiving cylinder, the magnetic leakage detector passes through the quick-open blind plate gets into or shifts out the pipeline.

The utility model provides a pair of detection device of magnetic leakage detector throughput capacity, including fluid supply unit, a ball section of thick bamboo, receive a ball section of thick bamboo and pipeline, the both ends of pipeline respectively with a ball section of thick bamboo reaches receive a ball section of thick bamboo intercommunication, fluid supply unit with a ball section of thick bamboo intercommunication does a ball section of thick bamboo provides the fluid, and a magnetic leakage detector is followed a ball section of thick bamboo gets into the pipeline, and fluid supplementary lower passing through the pipeline gets into receive in the ball section of thick bamboo. Utilize the fluid to make both ends production pressure differential around the magnetic leakage detector to the drive magnetic leakage detector removes in the pipeline, can effectively detect the phenomenon that whether the magnetic leakage detector can exist the card pipe before the magnetic leakage detector drops into actual detection, tests out the strong and weak of the throughput capacity of magnetic leakage detector, avoids the huge waste of manpower and materials, the development of supplementary magnetic leakage detector, whole device simple structure easily realizes.

Drawings

Fig. 1 is a schematic structural diagram of a detection apparatus for detecting a passing capability of a magnetic flux leakage detector according to an embodiment of the present invention;

wherein the reference numerals are:

10-a ball barrel; 20-ball collecting cylinder; 30-a pipeline; 40-a magnetic flux leakage detector; 50-a water tank; 60-conveying pump.

Detailed Description

The following description of the embodiments of the present invention will be described in more detail with reference to the drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

As shown in fig. 1, the present embodiment provides a device for detecting the passing capacity of a magnetic flux leakage detector, which includes a fluid supply unit, a ball dispensing cylinder 10, a ball collecting cylinder 20 and a pipeline 30, two ends of the pipeline 30 are respectively communicated with the ball dispensing cylinder 10 and the ball collecting cylinder 20, the fluid supply unit is communicated with the ball dispensing cylinder 10 to provide fluid for the ball dispensing cylinder 10, and a magnetic flux leakage detector 40 enters the pipeline 30 from the ball dispensing cylinder 10, and passes through the pipeline 30 and enters the ball collecting cylinder 20 with the aid of the fluid. The fluid supply unit provides pressure difference at the front end and the rear end of the fluid leakage detector 40, and then drives the leakage detector 40 to move in the pipeline 30, and whether the leakage detector 40 is blocked or not is detected, so that the passing capacity of the leakage detector 40 in the pipeline 30 is tested, and the development of the leakage detector 40 is assisted. If magnetic leakage detector 40 blocks in pipeline 30 at the removal in-process, can further detect the leakproofness of the spare part of magnetic leakage detector 40, whether the power leather cup size of magnetic leakage detector 40 front end is suitable for example, or whether the power leather cup has been damaged, and whether magnetic leakage detector 40 overlength, thereby can be in the discovery before magnetic leakage detector 40 drops into actual detection and solve the problem, avoid magnetic leakage detector 40 to block the pipe when actual detection and cause the huge waste of manpower and material resources.

The length of the pipe 30 can be adjusted according to the size of the placing space, and in this embodiment, the length of the pipe 30 is between 10m and 50 m.

Pipeline 30 with a ball section of thick bamboo 10 and the both ends welding of receiving a ball section of thick bamboo 20, because the magnetic leakage detector 40 passes through a ball section of thick bamboo 10 gets into pipeline 30 and passes through receive a ball section of thick bamboo 20 and shift out pipeline 30, consider that the quality of magnetic leakage detector 40 is great, for avoiding magnetic leakage detector 40 to drop, will through the welding a ball section of thick bamboo 10 and receive a ball section of thick bamboo 20 with the both ends of pipeline 30 are fixed. And, because the service cylinder 10 and receive a ball section of thick bamboo 20 with pipeline 30 is the gas tightness intercommunication, can wind service cylinder 10 and receive a ball section of thick bamboo 20 and carry out the girth welding with the port of pipeline 30 butt joint, avoid the poor differential pressure that influences both ends around magnetic leakage detector 40 of leakproofness, lead to magnetic leakage detector 40 card in pipeline 30, influence the testing result.

Referring to fig. 1, a feeding hole is formed in the ball dispensing tube 10, a discharging hole is formed in the ball receiving tube 20, the fluid supply unit is communicated with the feeding hole to supply fluid to the ball dispensing tube 10 through the feeding hole, and the fluid supply unit is communicated with the discharging hole to recycle the fluid. When needing the test, the fluid supply unit passes through the feed inlet to a ball section of thick bamboo 10 provides fluid, drives magnetic leakage detector 40 removes in the pipeline, treats that magnetic leakage detector 40 gets into and receives a ball section of thick bamboo 20 after, sends back fluid through the discharge gate fluid supply unit realizes fluidic cyclic utilization, resources are saved. In this embodiment, the inlet may be disposed on the top or the side wall of the ball serving barrel 10 to facilitate the entry of the fluid, and the outlet may be disposed on the bottom of the ball receiving barrel 20 to facilitate the recovery of the fluid.

Further, an exhaust port is arranged on the ball collecting barrel 20, and the exhaust port is used for exhausting air in the pipeline. After the detection starts, fluid is injected into the ball sending barrel 10 through the fluid supply unit, and meanwhile, the exhaust port is opened to exhaust air in the pipeline, so that a pressure difference is generated before and after the magnetic flux leakage detector 40, and the situation that the magnetic flux leakage detector 40 cannot move due to air compression and the test result is influenced is avoided. The exhaust port may be disposed at the top of the ball collecting barrel 20 or at another position, which is different from the position of the discharge port, and the present invention is not limited thereto.

When actual detection, the outer edge of the power leather cup of the general magnetic leakage detector 40 front end is sealed with pipeline 30 inner wall elasticity, utilizes intraductal fluid to make magnetic leakage detector 40 around both ends produce the pressure differential in order to promote magnetic leakage detector 40 along the operation of pipeline 30, the fluid is oil or natural gas for example, but when testing, for avoiding causing the incident to and consider factors such as cost, in this embodiment, the fluid is water, because the incompressible of water, makes the experimental security high to whole detection device cost is lower, easily realizes. Of course, other fluids capable of moving the leakage flux detector 40 are possible, and the invention is not limited in this regard.

Referring to fig. 1, the fluid supply unit includes a water tank 50 and a delivery pump 60, the water tank 50 is used for storing water, one end of the delivery pump 60 is connected to the water tank 50 through a hose, and the other end of the delivery pump is connected to the discharge port through a hose so as to deliver the water in the water tank 50 to the ball barrel 10. The pressure in the pipe 30 can be controlled by controlling the flow rate of water by the delivery pump 60. Specifically, the ball-out barrel 10 is further provided with a pressure gauge, the pressure gauge is used for detecting the pressure in the pipeline 30, if the pressure in the pipeline 30 is too large, the moving speed of the magnetic leakage detector 40 is too fast, the magnetic leakage detector 40 is easily damaged, and the flow rate of water should be reduced at this time; if the pressure in the duct 30 is too low, the movement speed of the leakage magnetic detector 40 is too slow, and even if the pressure does not move any longer, the detection of the passing capability of the leakage magnetic detector is easily affected, and at this time, the flow rate of water should be increased.

Pipeline 30 includes a plurality of elbows and a plurality of straight tubes, adjacent two the straight tube is through one the elbow is connected, and during the actual detection, the place that turns round often causes magnetic leakage detector 40 card in pipeline 30 easily, and this is because the leakproofness at the position of the power leather cup of magnetic leakage detector 40 etc. and pipeline 30 inner wall contact during turning receives the influence easily, for example the elasticity of power leather cup makes fluid entering magnetic leakage detector 40 inadequately in, perhaps magnetic leakage detector 40 overlength leaks magnetic detector 40's both ends and withstands pipeline 30's inner wall easily when turning round, leads to the unable removal of magnetic leakage detector 40. In order to better simulate the working condition of the pipeline 30 during actual detection, the pipeline 30 is turned by arranging a plurality of straight pipes and elbows, and the detection precision of the passing capacity of the magnetic flux leakage detector is improved. The straight pipe is made of steel, the elbow is a 90-degree long-radius elbow, and the straight pipe and the elbow can be connected in an airtight mode through a flange.

Further, the plane pattern of the pipeline 30 is U-shaped, Z-shaped or S-shaped, in this embodiment, the plane pattern of the pipeline 30 is U-shaped, and it can be understood that the projection pattern of the pipeline 30 on the plane is U-shaped, because the U-shaped pipeline 30 can simulate the working condition of the pipeline 30 during actual detection, and occupies a small space. Of course, other planar shapes are possible, and the invention is not limited in this respect.

Send out a ball section of thick bamboo 10 and receive all to be provided with quick-open blind plate on a ball section of thick bamboo 20, magnetic leakage detector 40 passes through quick-open blind plate gets into or shifts out pipeline 30, quick-open blind plate is a mechanical device who is used for realizing opening fast or close of pipeline 30, can improve the efficiency that detects, and magnetic leakage detector 40 will be examined time measuring in getting into pipeline 30, quick-open blind plate on sending out a ball section of thick bamboo 10 is opened, treats that magnetic leakage detector 40 gets into and sends out a ball section of thick bamboo 10 back fast and closes, treats that magnetic leakage detector 40 detects after ending, sends water back to the water tank through the outlet, quick-open blind plate on receiving a ball section of thick bamboo 20 is opened, takes out magnetic leakage detector 40 fast and can.

To sum up, the embodiment of the utility model provides a detection device for magnetic leakage detector throughput capacity, including fluid supply unit, a ball-sending cylinder, a ball-receiving cylinder and pipeline, the both ends of pipeline communicate with ball-sending cylinder and ball-receiving cylinder respectively, fluid supply unit and ball-sending cylinder communicate for the ball-sending cylinder provides fluid, a magnetic leakage detector gets into the pipeline from the ball-sending cylinder, and pass through the pipeline and get into in the ball-receiving cylinder under the assistance of the fluid, utilize water as the fluid that drives the magnetic leakage detector and remove, guaranteed the security of detection while saving cost, set up the bin outlet on the ball-receiving cylinder and connect the fluid supply unit simultaneously, realized the cyclic utilization of water, whole device simple structure, easily realize to can effectively detect whether the magnetic leakage detector can have the phenomenon of card pipe before the magnetic leakage detector drops into actual detection, the strength of the passing capability of the magnetic flux leakage detector is tested, the huge waste of manpower and material resources is avoided, and the development of the magnetic flux leakage detector is assisted.

The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.

Claims

1. The utility model provides a detection apparatus for magnetic leakage detector throughput capacity, its characterized in that includes fluid supply unit, a ball section of thick bamboo, receives a ball section of thick bamboo and pipeline, the both ends of pipeline respectively with a ball section of thick bamboo reaches receive a ball section of thick bamboo intercommunication, fluid supply unit with a ball section of thick bamboo intercommunication does a ball section of thick bamboo provides fluid, and a magnetic leakage detector follows a ball section of thick bamboo gets into the pipeline, and fluid supplementary down pass through the pipeline and get into receive in the ball section of thick bamboo.

2. The apparatus for detecting the passing ability of a magnetic flux leakage detector according to claim 1, wherein both ends of the duct are welded to the ball dispensing cylinder and the ball collecting cylinder, respectively.

3. The device for detecting the passing ability of a magnetic flux leakage detector according to claim 1, wherein the ball dispensing tube is provided with a feeding hole, the ball collecting tube is provided with a discharging hole, the fluid supply unit is communicated with the feeding hole to supply fluid to the ball dispensing tube through the feeding hole, and the fluid supply unit is further communicated with the discharging hole to recycle the fluid.

4. The device for detecting the passing ability of a magnetic flux leakage detector according to claim 3, wherein an air outlet is further provided on the ball-collecting barrel for exhausting air in the duct.

5. The apparatus for detecting the passing ability of a magnetic flux leakage detector according to claim 3, wherein said fluid is water.

6. The apparatus for detecting the passing ability of a magnetic flux leakage detector according to claim 5, wherein the fluid supply unit comprises a water tank for storing water and a delivery pump, one end of the delivery pump is connected to the water tank through a hose, and the other end of the delivery pump is connected to the feed port through a hose to deliver the water in the water tank to the ball-dispensing tube.

7. The device for detecting the passing ability of a magnetic flux leakage detector according to claim 1, wherein said pipe comprises a plurality of bends and a plurality of straight pipes, and two adjacent straight pipes are connected by one of said bends.

8. The apparatus for detecting the passing ability of a leakage flux detector according to claim 7, wherein the planar pattern of the duct is U-shaped, Z-shaped or S-shaped.

9. The device for detecting the passing ability of a magnetic flux leakage detector as claimed in claim 1, wherein a pressure gauge is further provided on the bulb for detecting the pressure in the pipe.

10. The device for detecting the passing ability of the magnetic flux leakage detector according to claim 1, wherein the ball sending cylinder and the ball receiving cylinder are both provided with a quick-opening blind plate, and the magnetic flux leakage detector enters or moves out of the pipeline through the quick-opening blind plates.