Pipeline redundancy inspection device

Abstract

The invention provides a pipeline redundancy inspection device, and relates to the technical field of pipeline detection, the pipeline redundancy inspection device comprises a device main body, a protection mesh is fixed by a protection pore plate, and a rupture disk is arranged on one side, far away from the device main body, of the protection pore plate; and white cloth is arranged on one side, far away from the protection pore plate, of the protection net. The device main body of the pipeline redundancy inspection device provided by the invention can be connected with different pipelines to be detected through the adapter, and the other ends of the pipelines to be detected are filled with gas, so that the air pressure in the pipelines to be detected is continuously increased until the air pressure can explode the rupture disk; by means of airflow impact, pressure change and subsequent medium flow generated at the moment of blasting, redundant substances in the to-be-detected pipeline are dynamically changed; after the rupture disk is exploded, the inside of the to-be-detected pipeline is impacted, and if redundant substances exist, the redundant substances can be adsorbed on white cloth through airflow, so that observation, monitoring and analysis are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline detection, and in particular to a pipeline foreign matter inspection device. BACKGROUND

[0002] In industrial production, pipelines are widely used in aerospace, aviation, petroleum, chemical industry, nuclear power, gas transportation, water supply and drainage, and many other fields. If there are foreign matters inside the pipeline, such as construction residues, corrosion debris, and accidental foreign matters, it will pose a serious threat to the normal operation of the pipeline, especially the pipelines in aerospace and aviation engineering, which have higher requirements for foreign matters. These foreign matters may block the pipeline, affecting the efficiency of medium transportation; may wear the inner wall of the pipeline, shortening the service life of the pipeline; and may even cause quality and safety accidents, such as in aerospace and aviation fuel pipelines, foreign matters may cause engine damage, and even cause explosions, fires, and other dangers.

[0003] At present, the inspection method of pipeline foreign matters has many deficiencies. The common manual inspection method needs to disassemble part of the pipeline structure, which is low in efficiency and has a certain destructive effect, and it is difficult to implement comprehensive inspection for long-distance, deep-buried or complex pipeline. Some optical detection-based equipment, such as pipeline endoscope, although can realize non-contact detection, but due to the influence of light propagation, pipeline bending degree, inner wall pollution and other factors, it may not be able to clearly identify small or hidden foreign matters, and it is difficult to accurately judge the influence degree of some metal debris, hard debris and other matters on the operation of the pipeline. There is also a method of using pressure detection to monitor the pressure change in the pipeline to speculate whether there is a blockage or other problems, but it cannot accurately locate the position of the foreign matter and determine its nature, and the misjudgment rate is high.

[0004] In addition, the existing pipeline detection device often lacks universality and adaptability for different pipe diameters and different pipeline materials in structural design, and is complex to install and operate, which is not conducive to widespread application. Moreover, after inspecting the pipeline foreign matter, it is difficult to quickly and intuitively obtain information related to the foreign matter, such as whether it has been effectively cleaned, the internal state of the pipeline after cleaning, etc., and a complete inspection and feedback loop cannot be formed.

[0005] In summary, the existing pipeline foreign matter inspection technology has obvious defects in detection comprehensiveness, accuracy, universality, and feedback after inspection, and cannot meet the strict requirements of pipeline safe and efficient operation in production. SUMMARY

[0006] The purpose of the present application is to provide a pipeline foreign matter inspection device to alleviate the technical problems of low pipeline detection efficiency and inability to clearly identify small foreign matters.

[0007] The application provides a pipeline excess inspection device, which comprises a device body, wherein the device body is provided with a through hole penetrating through the device body and extending along the axial direction of the device body. An adapter is arranged at one end of the axial direction of the device body, and the adapter is used for being connected with a pipeline to be detected. A protective net, a protective aperture plate and a bursting disc are sequentially arranged at the other end of the axial direction of the device body, the protective net is in abutment with the first end of the device body, the protective aperture plate is used for fixing the protective net, and the bursting disc is arranged on the side of the protective aperture plate away from the device body. A white cloth is arranged on the side of the protective net away from the protective aperture plate.

[0008] In an optional embodiment, a bursting flange is further arranged on the side of the bursting disc away from the protective aperture plate, and the bursting flange is used for fixing the bursting disc on the protective aperture plate. In an optional embodiment, the inner diameter of the through hole is not less than the inner diameter of the pipeline to be detected.

[0009] In an optional embodiment, the protective aperture plate is provided with a plurality of through holes, and the area of the plurality of through holes is not less than the cross-sectional area of the pipeline to be detected.

[0010] In an optional embodiment, the device body is provided with an upper connecting pipe and a lower connecting pipe arranged oppositely, and the upper connecting pipe and the lower connecting pipe are both in communication with the through hole. A lower blind plate is arranged at the end of the lower connecting pipe away from the device body, and an upper blind plate is arranged at the end of the upper connecting pipe away from the device body. A supporting square pipe is arranged in the upper connecting pipe, and the supporting square pipe extends from the upper connecting pipe to the lower connecting pipe through the through hole; and an aluminum skin is arranged on the supporting square pipe.

[0011] In an optional embodiment, the upper connecting pipe and the lower connecting pipe are both provided with a connecting disc. In an optional embodiment, the adapter is a connecting flange, one end of the connecting flange is detachably connected with the device body, and the other end is used for being detachably connected with the pipeline to be detected. In an optional embodiment, flange plates are arranged at both ends of the axial direction of the device body; and the protective aperture plate and the adapter are both connected with the flange plates.

[0012] In an optional embodiment, sealing gaskets are arranged between the adapter and the device body and between the adapter and the pipeline to be detected. In an optional embodiment, the sealing gasket is made of rubber or polytetrafluoroethylene.

[0013] The device body of the pipeline excess inspection device provided by the application can be connected with different pipelines to be detected through the adapter, gas is filled into the other end of the pipeline to be detected, the gas pressure in the pipeline to be detected is continuously increased until the diaphragm is burst, and the airflow impact, pressure change and subsequent medium flow generated in the burst moment are utilized to make the excess in the pipeline to be detected present dynamic change. After the diaphragm is burst, the airflow rapidly passes through the protection hole plate, the protection net and other structures, impacts the inside of the pipeline to be detected, and if there is excess, the excess is adsorbed on the white cloth by the airflow, so that the excess is convenient for observation, monitoring and analysis, and the condition of the excess is judged, and the problem that the traditional static detection is difficult to find hidden and small excess is solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0015] Figure 1 The structural schematic diagram of the pipeline excess inspection device provided by the embodiment of the application is shown in the figure. Figure 2 The Figure 1 The explosion diagram of the pipeline excess inspection device is shown in the figure. Figure 3 The Figure 1 The explosion diagram of the pipeline excess inspection device is shown in the figure.

[0016] Figure legend: 100-device body; 101-flange; 102-upper connecting pipe; 1021-connection disc; 103-lower connecting pipe; 104-lower blind plate; 105-upper blind plate; 200-adapter; 300-white cloth; 400-protection net; 500-protection hole plate; 600-diaphragm; 700-burst flange; 800-supporting square tube; 900-aluminum skin; 110-through hole. EMBODIMENT

[0017] The terms "first", "second", "third", etc. are only used for differentiation and description, and do not represent the arrangement serial number, and cannot be understood as indicating or implying relative importance.

[0018] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. As "horizontal" merely means that it is more horizontal than "vertical", it does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0019] In the description of the present application, it should be noted that the terms "inner", "outer", "left", "right", "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0020] In the description of the present application, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements.

[0021] The technical solutions of the present application will be described below in conjunction with the drawings.

[0022] Embodiments With reference to Figure 1 , Figure 2 and Figure 3 , the present application provides a pipeline excess inspection device, comprising a device body 100, the device body 100 has a through hole 110 penetrating through the device body 100, and the through hole 110 extends along the axial direction of the device body 100; An adapter 200 is arranged at one end of the axial direction of the device body 100, and the adapter 200 is used to connect with the pipeline to be detected; A protective net 400, a protective aperture plate 500 and a bursting disc 600 are arranged in sequence at the other end of the axial direction of the device body 100, the protective net 400 abuts against the first end of the device body 100, the protective aperture plate 500 fixes the protective net 400, and the bursting disc 600 is arranged on the side of the protective aperture plate 500 away from the device body 100; A white cloth 300 is arranged on the side of the protective net 400 away from the protective aperture plate 500.

[0023] In some embodiments, one end of the main body 100 of the pipe foreign matter detection device is provided with an adapter 200; different adapters 200 are replaced according to different pipes to be detected; thereby enabling the main body 100 of the device to be connected to pipes of various specifications to be detected.

[0024] After connecting the main body 100 of the device to one end of the pipeline to be tested, gas is introduced into the other end of the pipeline. As the gas pressure in the pipeline gradually increases, when the gas pressure is sufficient to cause the rupture disc 600 to rupture, the gas in the pipeline flows to one side of the main body 100 of the device. After passing through the white cloth 300, the protective net 400, and the protective perforated plate 500, the gas is discharged. The airflow impact, pressure change, and subsequent medium flow generated at the moment of rupture cause the excess material in the pipeline to undergo dynamic changes.

[0025] After the rupture disc 600 explodes, the airflow quickly passes through the protective orifice plate 500, protective net 400 and other structures, impacting the inside of the pipe to be inspected. If there are any foreign objects, they will be adsorbed onto the white cloth 300 by the airflow, making it easy to observe, monitor and analyze, and determine the situation of foreign objects. This solves the problem that traditional static detection is difficult to detect hidden and small foreign objects.

[0026] White Cloth 300 has good breathability. It is made from white silk and other fabrics that meet the requirements.

[0027] Reference Figure 2 In an optional embodiment, a burst flange 700 is also included, which is disposed on the side of the rupture disc 600 away from the protective orifice plate 500, and the burst flange 700 is used to fix the rupture disc 600 on the protective orifice plate 500. Since each test requires one rupture disc 600, the rupture flange 700 and the protective orifice plate 500 are connected by bolts. The rupture flange 700 and the protective orifice plate 500 work together to fix the rupture disc 600. When the rupture disc 600 needs to be replaced, it can be replaced by removing the rupture flange 700.

[0028] The protective net 400 should be installed close to the protective perforated plate 500 to provide initial protection and intercept large particles of foreign matter. The protective perforated plate 500 is installed outside the protective net 400. The aperture and distribution density of its perforations need to be designed according to the medium in the pipeline to be tested and the size of the foreign matter to be detected. Generally, the aperture should be smaller than the size of common hazardous foreign matter to ensure effective blocking. At the same time, the total number of openings in the protective perforated plate 500 should be equivalent to the diameter of the pipeline to be tested. The rupture disc 600 is installed outside the protective perforated plate 500 and cooperates with the main body 100 of the device to form a rupture triggering structure. The white cloth 300 is cut to a suitable size and placed in front of the protective net 400 to absorb foreign matter.

[0029] Reference Figure 3 In an optional embodiment, the inner diameter of the through hole 110 is not less than the inner diameter of the pipe to be tested.

[0030] In an optional embodiment, the protective orifice plate 500 has a plurality of through holes, and the area of ​​the plurality of through holes is not less than the cross-sectional area of ​​the pipe to be tested.

[0031] In order to ensure that the gas in the pipeline under test can be effectively discharged and to avoid the air flow velocity in the pipeline under test being affected by the discharge efficiency of the main body 100 of the device, the inner diameter of the through hole 110 shall not be less than the inner diameter of the pipeline under test, and the area of ​​all through holes on the protective orifice plate 500 shall not be less than the cross-sectional area of ​​the pipeline under test; to avoid affecting the gas flow in the pipeline under test due to the setting of the protective orifice plate 500.

[0032] Reference Figure 2 In an optional embodiment, the main body 100 of the device has an upper connecting pipe 102 and a lower connecting pipe 103 arranged opposite to each other, and both the upper connecting pipe 102 and the lower connecting pipe 103 are connected to the through hole 110. A lower blind plate 104 is provided at the end of the lower connecting pipe 103 that is away from the device body 100, and an upper blind plate 105 is provided at the end of the upper connecting pipe 102 that is away from the device body 100. A supporting square tube 800 is provided inside the upper connecting tube 102, and the supporting square tube 800 extends from the upper connecting tube 102 through the through hole 110 into the lower connecting tube 103; an aluminum sheet 900 is provided on the supporting square tube 800.

[0033] For the supporting square tube 800 and aluminum sheet 900, during the inspection process, the supporting square tube 800 is placed into the upper connecting tube 102 and lower connecting tube 103 at both ends of the main body 100 of the device, ensuring that it penetrates the main body 100 of the device. The upper connecting tube 102 and lower connecting tube 103 are then sealed with blind flanges. This allows foreign matter to impact the soft aluminum sheet 900 and leave marks. Comparison with a white scouring pad further improves the accuracy of foreign matter inspection.

[0034] In some embodiments, the main body 100 of the device has an upper connecting pipe 102 and a lower connecting pipe 103 arranged opposite to each other, both of which are connected to the through hole 110; the supporting square tube 800 can be inserted from the upper connecting pipe 102 and then through the through hole 110 into the lower connecting pipe 103; an aluminum sheet 900 is provided on the supporting square tube 800; when the rupture disc 600 ruptures, the airflow quickly passes through the protective orifice plate 500, the protective net 400 and other structures, impacting the inside of the pipe to be tested. If there are any foreign objects, they will be adsorbed on the aluminum sheet 900 by the airflow, making it easy to observe, monitor and analyze, and determine the situation of foreign objects, thus solving the problem that traditional static detection is difficult to detect hidden and small foreign objects.

[0035] By observing the traces on the surface of the aluminum sheet 900 and visually inspecting or illuminating the excess material filtered and adsorbed on the white cloth 300, it is possible to effectively determine whether the pipeline has been cleaned and whether the cleanliness meets the standards.

[0036] The pipeline foreign matter inspection device utilizes the dynamic airflow impact generated by blasting to move previously hidden and stationary foreign matter (such as tiny debris adhering to the inner wall of the pipeline or debris deposited at the bottom). Compared to traditional static inspection methods (such as simple endoscopic observation), it can more comprehensively expose foreign matter in all parts of the pipeline, whether it is a straight section, a bend, or an interface, all of which can be detected under the action of airflow, avoiding blind spots and achieving all-round screening of foreign matter inside the pipeline. For example, in some long-distance transport pipelines, traditional endoscopes have difficulty detecting debris deposited deep in the pipeline due to slow media flow, while the blasting airflow of this device can lift these debris, making them easier to detect and identify.

[0037] By intercepting and analyzing excess material, its presence can be accurately determined, along with its impact on the operation of the pipeline being inspected. Compositional analysis of the excess material clarifies its source (construction residue, pipeline corrosion products, or external intrusions, etc.), providing an accurate basis for subsequent pipeline maintenance and preventative measures. Compared to traditional methods relying solely on experience or a single detection method, accuracy is significantly improved, effectively avoiding misjudgments and omissions.

[0038] In an optional embodiment, both the upper connecting pipe 102 and the lower connecting pipe 103 are provided with connecting discs 1021. The upper connecting pipe 102 is connected to the upper blind plate 105 via a connecting plate 1021, and the lower connecting pipe 103 is connected to the lower blind plate 104 via a connecting plate 1021. In order to ensure the sealing of the connection between the upper blind plate 105 and the upper connecting pipe 102, and the connection between the lower connecting pipe 103 and the lower blind plate 104, sealing gaskets are provided between the upper blind plate 105 and the upper connecting pipe 102, and between the lower blind plate 104 and the lower connecting pipe 103.

[0039] In an optional embodiment, the adapter 200 is a connecting flange, one end of which is detachably connected to the device body 100, and the other end is used for detachably connecting to the pipeline to be tested. In an optional embodiment, flanges 101 are provided at both ends of the axial direction of the device body 100; the protective orifice plate 500 and the adapter 200 are both connected to the flanges 101.

[0040] The adapter 200 is a connecting flange. One end of the connecting flange is fixed to the main body 100 of the device. Multiple different connecting flanges have multiple different flanges 101 for connecting with the pipeline to be inspected. According to the different specifications of the pipeline to be inspected, different adapters 200 can be replaced so that the pipeline foreign matter inspection device can be installed on pipelines of different specifications, thereby improving the application range of the pipeline foreign matter inspection device.

[0041] In an optional embodiment, sealing gaskets are provided between the adapter 200 and the device body 100, and between the adapter 200 and the pipe to be tested. In an optional embodiment, the sealing gasket is made of rubber or polytetrafluoroethylene.

[0042] To ensure the sealing of flange connections, gaskets that do not produce excess material are selected based on the properties of the pipeline medium, pressure, and temperature. Bolts are then tightened evenly to prevent media leakage.

[0043] The components of the pipeline foreign object inspection device can be flexibly adapted to different pipeline diameters and interface standards. Flange sizes and support and protection structures (800 aluminum support square tube, 900 aluminum sheet, etc.) can all be adjusted. It is applicable to pipelines of various materials, such as metal pipelines (e.g., steel pipes, copper pipes) and non-metal pipelines (e.g., plastic pipes, ceramic pipes), as well as pipelines of different diameters, from small-diameter civil water supply and drainage pipes to large-diameter industrial conveying pipes. There is no need to design separate inspection devices for different pipelines, which reduces inspection costs, improves the applicability of the device, and solves the problem of poor versatility of traditional inspection devices.

[0044] The pipeline foreign matter inspection device can operate stably in various laying environments (above ground, underground, different routes, etc.) by adjusting the support structure and operating parameters, unaffected by external environmental interference, ensuring the reliability of the test results. Even in complex terrain or harsh weather conditions, it maintains high-efficiency detection capabilities, significantly improving the device's environmental adaptability and operational flexibility.

[0045] When it is necessary to disassemble the pipeline foreign matter inspection device, first remove the blind flange, and then remove the burst flange 700, burst disc 600, protective orifice plate 500, protective net 400, white cloth 300, etc. in sequence. During the disassembly process, pay attention to properly preserve and mark the components that intercept foreign matter for detailed analysis of foreign matter information later. If the aluminum sheet 900 has impact marks or obvious foreign matter on the white cloth 300, replace the burst disc 600 and repeat the above operation steps to perform multiple burst tests until the inside of the pipe is clean and qualified. After the test pipe bursts and purges and passes the test, clean and inspect the reusable components (such as the device body 100, protective net 400, protective orifice plate 500, burst flange 700, aluminum sheet 900 support pipe, etc., if undamaged) to prepare for the next test.

[0046] The main body 100 of the pipeline foreign matter inspection device provided by this invention can be connected to different pipelines to be inspected via an adapter 200. Gas is introduced into the other end of the pipeline to be inspected, causing the gas pressure inside the pipeline to continuously increase until the gas pressure is high enough to rupture the rupture disc 600. The airflow impact, pressure change, and subsequent medium flow generated at the moment of rupture cause the foreign matter inside the pipeline to exhibit dynamic changes. After the rupture disc 600 ruptures, the airflow quickly passes through structures such as the protective orifice plate 500 and the protective net 400, impacting the inside of the pipeline to be inspected. If there is foreign matter, it will be adsorbed onto the white cloth 300 by the airflow, making it easy to observe, monitor, and analyze, and to determine the situation of foreign matter. This solves the problem that traditional static inspection is difficult to detect hidden and small foreign matter.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for inspecting foreign objects in pipelines, characterized in that, Includes a device body (100), the device body (100) having a through hole (110) extending through the device body (100) and the through hole (110) extending along the axial direction of the device body (100); An adapter (200) is provided at one end of the axial direction of the main body (100) of the device, the adapter (200) being used to connect to the pipe to be tested; A protective net (400), a protective perforated plate (500), and a rupture disc (600) are sequentially arranged at the other end of the axial direction of the device body (100). The protective net (400) abuts against the first end of the device body (100), and the protective perforated plate (500) fixes the protective net (400). The rupture disc (600) is arranged on the side of the protective perforated plate (500) away from the device body (100). A white cloth (300) is provided on the side of the protective net (400) away from the protective perforated plate (500).

2. The pipeline foreign matter inspection device according to claim 1, characterized in that, It also includes a burst flange (700), which is disposed on the side of the rupture disc (600) away from the protective orifice plate (500), and the burst flange (700) is used to fix the rupture disc (600) on the protective orifice plate (500).

3. The pipeline foreign matter inspection device according to claim 1, characterized in that, The inner diameter of the through hole (110) is not less than the inner diameter of the pipe to be tested.

4. The pipeline foreign matter inspection device according to claim 1, characterized in that, The protective orifice plate (500) has multiple through holes, and the area of ​​the multiple through holes is not less than the cross-sectional area of ​​the pipe to be tested.

5. The pipeline foreign matter inspection device according to claim 1, characterized in that, The main body (100) of the device has an upper connecting pipe (102) and a lower connecting pipe (103) arranged opposite to each other, and both the upper connecting pipe (102) and the lower connecting pipe (103) are connected to the through hole (110); A lower blind plate (104) is provided at one end of the lower connecting pipe (103) away from the device body (100), and an upper blind plate (105) is provided at one end of the upper connecting pipe (102) away from the device body (100). A supporting square tube (800) is provided inside the upper connecting tube (102), and the supporting square tube (800) extends from the upper connecting tube (102) through a through hole (110) into the lower connecting tube (103); an aluminum sheet (900) is provided on the supporting square tube (800).

6. The pipeline foreign matter inspection device according to claim 5, characterized in that, Both the upper connecting pipe (102) and the lower connecting pipe (103) are provided with connecting discs (1021).

7. The pipeline foreign matter inspection device according to claim 1, characterized in that, The adapter (200) is a connecting flange. One end of the connecting flange is detachably connected to the main body (100) of the device, and the other end is used to detachably connect to the pipeline to be tested.

8. The pipeline foreign matter inspection device according to claim 1, characterized in that, Flanges (101) are provided at both ends of the axial direction of the main body (100) of the device; the protective orifice plate (500) and the adapter (200) are both connected to the flanges (101).

9. The pipeline foreign matter inspection device according to claim 1, characterized in that, Sealing gaskets are provided between the adapter (200) and the main body of the device (100), and between the adapter (200) and the pipeline to be tested.

10. The pipeline foreign matter inspection device according to claim 9, characterized in that, The sealing gasket is made of rubber or polytetrafluoroethylene.

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