Sealing detection device and sealing detection method

Abstract

The invention belongs to the technical field of sealing detection devices, and discloses a sealing detection device and a sealing detection method. The sealing detection device comprises an isolation assembly, a pressurization assembly, a detection assembly and an inflation assembly, an isolation bag of the isolation assembly extends into and is placed from an opening formed in the peripheral wall of the first pipeline and can abut against the inner wall of the first pipeline to block the first pipeline, and a blocking piece of the isolation assembly blocks the opening. A first gas source of the pressurization assembly is communicated with the first end of the first pipeline to inflate the first pipeline, a first pressure detection piece of the pressurization assembly can detect the gas pressure of a cavity defined by the first end of the first pipeline and the isolation bag, and a second pressure detection piece of the detection assembly is arranged at the second end of the first pipeline. The gas pressure of a cavity defined by the second end of the first pipeline and the isolation bag can be detected, a second gas source of the inflation assembly communicates with the isolation bag to inflate the isolation bag, a third pressure detection piece of the inflation assembly detects the gas pressure input into the isolation bag, and the sealing performance of the isolation bag and the inner wall of the first pipeline can be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of sealing detection devices, and in particular to a sealing detection device and a sealing detection method. Background Art

[0002] In the field of liquefied gas ship transportation, the safety valve of the liquefied gas ship cargo hold must be equipped with necessary isolation measures. Usually, an isolation bag is set in the pipeline between the cargo hold and the safety valve. The isolation bag is inflated so that the isolation bag abuts against the inner wall of the pipeline and blocks the pipeline, so as to achieve the purpose of isolating the cargo hold and the safety valve.

[0003] Currently, conventional detection methods are unable to accurately detect tiny leaks when testing the sealing status of isolation bladders and the inner walls of pipelines. Pressure detection equipment has limited accuracy and cannot detect subtle sealing defects in a timely manner. In addition, the detection process is complex and time-consuming, seriously affecting the operating efficiency of ships.

[0004] Therefore, a sealing detection device and a sealing detection method are urgently needed to solve the above problems. Summary of the Invention

[0005] One object of the present invention is to provide a sealing detection device that can accurately detect the sealing status of the isolation bag and the inner wall of the pipeline, thereby improving the detection efficiency and accuracy.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] Sealing detection device, comprising:

[0008] An isolation assembly comprising an isolation sac and a blocking member, wherein the isolation sac can be inserted into an opening provided on a peripheral wall of the first pipe and placed in the first pipe, the isolation sac can abut against an inner wall of the first pipe to block the first pipe, and the blocking member can block the opening;

[0009] a pressurizing assembly comprising a first gas source and a first pressure detecting member, wherein the first gas source is in communication with the first end of the first pipe and is capable of inflating gas into the first pipe, and the first pressure detecting member is configured to detect the gas pressure between the first end of the first pipe and the chamber enclosed by the isolation sac;

[0010] The inspection assembly includes a second pressure detection member, the second pressure detection member is disposed at the second end of the first pipe and is configured to detect the gas pressure between the second end of the first pipe and the chamber enclosed by the isolation bag;

[0011] The inflation component includes a second gas source and a third pressure detection component. The second gas source is connected to the isolation bag and can inflate gas into the isolation bag. The third pressure detection component is configured to detect the gas pressure input into the isolation bag.

[0012] As an optional solution of a sealing detection device, the boosting assembly also includes a first connecting pipe and a first control valve, one end of the first connecting pipe is connected to the first pipeline, and the other end is connected to the first end of the first control valve, the second end of the first control valve is connected to the first gas source, and the first control valve is configured to connect or disconnect the first connecting pipe from the first gas source.

[0013] As an optional solution for a sealing detection device, the first end of the first pipe is provided with a first flange, and the booster assembly also includes a first connecting base, which can overlap with the first flange. The first connecting base is provided with a first connecting hole, and the first connecting pipe is connected to the first connecting hole.

[0014] As an optional solution of a sealing detection device, the booster assembly further includes a first gasket, which is clamped between the first connecting base and the first flange.

[0015] As an optional solution for a sealing detection device, the second end of the first pipe is provided with a second flange, and the inspection assembly also includes a second connecting base and a second connecting pipe. The second connecting base can overlap with the second flange, and a second connecting hole is provided on the second connecting base. One end of the second connecting pipe is connected to the second connecting hole, and the other end is connected to the second pressure detection component.

[0016] As an optional solution of a sealing detection device, the inflation component also includes a third connecting tube and a second control valve, one end of the third connecting tube is connected to the isolation bag, and the other end is connected to the first end of the second control valve, the second end of the second control valve is connected to the second air source, and the second control valve is configured to connect or disconnect the third connecting tube from the second air source.

[0017] As an optional solution for a sealing detection device, the opening of the first pipe is provided with a second pipe connected thereto, the extension direction of the second pipe forms an angle with the extension direction of the first pipe, and the angle is greater than 0 degrees and less than 180 degrees, and a third flange is provided at the end of the second pipe, the sealing member can overlap with the third flange and seal the second pipe, and a third connecting hole is provided on the sealing member, and the inflation component can pass through the third connecting hole and be connected to the isolation bag.

[0018] Another object of the present invention is to provide a sealing detection method. By applying the above-mentioned sealing detection device, the process is rigorous and the accuracy and reliability of the sealing detection results can be significantly improved.

[0019] To achieve this object, the present invention adopts the following technical solutions:

[0020] A sealing detection method is applied to the above-mentioned sealing detection device, and the sealing detection method comprises the following steps:

[0021] S1: The isolation bag extends from the opening provided on the peripheral wall of the first pipe and is placed in the first pipe;

[0022] S2: The blocking member blocks the opening;

[0023] S3: the second gas source inflates the isolation bag, and the third pressure detecting element detects the pressure of the gas inputted into the isolation bag by the second gas source in real time. The inflated isolation bag abuts against the inner wall of the first pipe;

[0024] S4: The first gas source inflates the first pipe, and the first pressure detecting component detects the gas pressure of the first end of the first pipe and the chamber enclosed by the isolation bag in real time, and the second pressure detecting component detects the gas pressure of the second end of the first pipe and the chamber enclosed by the isolation bag in real time.

[0025] As an optional solution for a sealing detection method, S3 includes: the second gas source inflates the isolation bag, the gas pressure in the isolation bag is detected by the third pressure detection component, and the gas pressure in the isolation bag is controlled to gradually increase to a first preset pressure. When the gas pressure in the isolation bag increases to the first preset pressure, the isolation bag abuts against the inner wall of the first pipe. After each increase in gas pressure, whether there is any leakage at the connection between the components of the boosting component and the inflation component is detected.

[0026] As an optional solution of a sealing detection method, S3 further includes: using an airtightness detection liquid to detect whether there is leakage at the connection between the components of the boosting component and the inflation component.

[0027] Beneficial effects:

[0028] The present invention provides a sealing detection device. When the sealing detection device is in operation, the isolation bag extends into the first pipe through the opening on the upper wall of the first pipe. After inflation, the isolation bag abuts against the inner wall of the first pipe and blocks the first pipe, and the blocking member closes the opening. The second gas source inflates the isolation bag and detects the gas pressure input into the isolation bag through the third pressure detection member. The first gas source inflates the first end of the first pipe and detects the gas pressure of the first end of the first pipe and the chamber enclosed by the isolation bag through the first pressure detection member. The second pressure detection member detects the gas pressure of the second end of the first pipe and the chamber enclosed by the isolation bag at the second end of the first pipe, thereby testing the sealing of the inner wall of the isolation bag and the first pipe. The sealing detection device can accurately detect the sealing status of the inner wall of the isolation bag and the first pipe. It has a compact structure and a clear, efficient and convenient detection process, which improves detection efficiency and accuracy.

[0029] The present invention provides a sealing detection method, which uses the above-mentioned sealing detection device. The isolation bag extends from the opening provided on the peripheral wall of the first pipe and is placed in the first pipe; the sealing member blocks the opening; the second gas source inflates the isolation bag, and the third pressure detection member detects the gas pressure input into the isolation bag by the second gas source in real time. The inflated isolation bag abuts the inner wall of the first pipe; the first gas source inflates the first pipe, and the first pressure detection member detects the gas pressure between the first end of the first pipe and the chamber enclosed by the isolation bag in real time, and the second pressure detection member detects the gas pressure between the second end of the first pipe and the chamber enclosed by the isolation bag in real time. This sealing detection method has a rigorous process and significantly improves the accuracy and reliability of the sealing detection results through the systematic design of inflation control, leak detection and pressure detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a first schematic diagram of a sealing detection device provided by an embodiment of the present invention;

[0031] Figure 2 This is a second schematic diagram of the sealing detection device provided by an embodiment of the present invention.

[0032] In the picture:

[0033] 100. First pipe; 101. First flange; 102. Second flange;

[0034] 200, second pipeline; 201, third flange;

[0035] 1. Isolation assembly; 11. Isolation capsule; 12. Blocking member; 121. Third communication hole;

[0036] 2. Pressurizing assembly; 21. First pressure detection component; 211. First pressure gauge; 212. First three-way test valve; 22. First connecting pipe; 23. First control valve; 24. First air source; 25. First connecting base; 251. First communicating hole; 26. First gasket; 27. First air release valve; 28. First threaded pipe seat; 29. ​​First threaded joint;

[0037] 3. Inspection assembly; 31. Second pressure detection component; 311. Second pressure gauge; 312. Second three-way test valve; 32. Second connecting pipe; 33. Second connecting base; 331. Second communicating hole; 34. Second gasket; 35. Second air release valve; 36. Second threaded pipe seat; 37. Second threaded joint;

[0038] 4. Inflatable assembly; 41. Third pressure detection component; 411. Third pressure gauge; 412. Third three-way test valve; 42. Third connecting pipe; 43. Second control valve; 44. Second air source; 45. Third air release valve. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0040] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0042] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0043] This embodiment provides a sealing detection device and a sealing detection method, such as Figure 1-Figure 2As shown, the sealing detection device includes an isolation component 1, a pressurizing component 2, a testing component 3 and an inflation component 4. The isolation component 1 includes an isolation bag 11 and a blocking member 12. The isolation bag 11 can be inserted into the opening provided on the peripheral wall of the first pipe 100 and placed in the first pipe 100. The isolation bag 11 can abut against the inner wall of the first pipe 100 to block the first pipe 100, and the blocking member 12 can block the opening; the pressurizing component 2 includes a first air source 24 and a first pressure detection member 21. The first air source 24 is connected to the first end of the first pipe 100 and can be injected into the first pipe 100. Inflation, the first pressure detecting component 21 is used to detect the gas pressure in the chamber enclosed by the first end of the first pipe 100 and the isolation bag 11; the inspection component 3 includes a second pressure detecting component 31, and the second pressure detecting component 31 is arranged at the second end of the first pipe 100, and is used to detect the gas pressure in the chamber enclosed by the second end of the first pipe 100 and the isolation bag 11; the inflation component 4 includes a second gas source 44 and a third pressure detecting component 41, the second gas source 44 is connected to the isolation bag 11, and can inflate the isolation bag 11, and the third pressure detecting component 41 is used to detect the gas pressure input into the isolation bag 11.

[0044] When the sealing detection device provided in this embodiment is in operation, the isolation bladder 11 extends into the first pipe 100 through the opening on the upper wall of the first pipe 100. After inflation, the isolation bladder 11 abuts against the inner wall of the first pipe 100 and blocks the first pipe 100, and the blocking member 12 closes the opening. The second gas source 44 inflates the isolation bladder 11, and the third pressure detection member 41 detects the pressure of the gas entering the isolation bladder 11. The first gas source 24 inflates the first end of the first pipe 100, and the first pressure detection member 21 detects the pressure of the gas entering the first end of the first pipe 100 and the chamber enclosed by the isolation bladder 11. The second pressure detection member 31 detects the pressure of the gas entering the second end of the first pipe 100 and the chamber enclosed by the isolation bladder 11, thereby verifying the sealing between the isolation bladder 11 and the inner wall of the first pipe 100. This sealing detection device can accurately detect the sealing status of the isolation bladder 11 and the inner wall of the first pipe 100. It has a compact structure and a clear, efficient and convenient detection process, thereby improving detection efficiency and accuracy.

[0045] This embodiment provides a sealing detection method, which uses the above-mentioned sealing detection device. The isolation bag 11 extends from the opening provided on the peripheral wall of the first pipe 100 and is placed in the first pipe 100; the blocking member 12 blocks the opening; the second gas source 44 inflates the isolation bag 11, and the third pressure detection member 41 detects the gas pressure input into the isolation bag 11 by the second gas source 44 in real time. The inflated isolation bag 11 abuts the inner wall of the first pipe 100; the first gas source 24 inflates the first pipe 100, and the first pressure detection member 21 detects the gas pressure between the first end of the first pipe 100 and the chamber enclosed by the isolation bag 11 in real time. The second pressure detection member 31 detects the gas pressure between the second end of the first pipe 100 and the chamber enclosed by the isolation bag 11 in real time. This sealing detection method has a rigorous process and significantly improves the accuracy and reliability of the sealing detection results through the systematic design of inflation control, leak detection and pressure detection.

[0046] In this embodiment, the first gas source 24 and the second gas source 44 are both air pumps. In other embodiments, the first gas source 24 and the second gas source 44 can be high-pressure gas cylinders, compressed air tanks, etc., which are not specifically limited here.

[0047] like Figure 1-Figure 2 As shown, the boost assembly 2 includes a first connecting pipe 22 and a first control valve 23. One end of the first connecting pipe 22 is connected to the first pipeline 100, and the other end is connected to the first end of the first control valve 23. The second end of the first control valve 23 is connected to the first gas source 24. The first control valve 23 is used to connect or disconnect the first connecting pipe 22 from the first gas source 24. The boost assembly 2 is connected to the first pipeline 100 via one end of the first connecting pipe 22, and the first control valve 23 is used to achieve on-off control of the first connecting pipe 22 and the first gas source 24. The air pressure input into the first pipeline 100 can be flexibly adjusted according to actual needs.

[0048] Specifically, when the first pipeline 100 needs to be inflated, the first control valve 23 is opened to connect the first connecting pipe 22 and the first gas source 24, so that the gas can smoothly enter the first pipeline 100; when the air pressure in the first pipeline 100 needs to be kept stable or a deflation operation needs to be performed, the first control valve 23 is closed to disconnect the first connecting pipe 22 from the first gas source 24 to prevent gas leakage.

[0049] It is worth noting that the first pressure detection component 21 is used to detect the gas pressure in the first connecting pipe 22. The first pressure detection component 21 includes a first pressure gauge 211 and a first three-way test valve 212. The first end of the first three-way test valve 212 is disposed on the first connecting pipe 22, and the second end of the first three-way test valve 212 is connected to the first pressure gauge 211. The first pressure gauge 211 is used to detect the gas pressure in the first connecting pipe 22. The first three-way test valve 212 is easy to install and maintain, and can switch detection states without interrupting the gas circuit. In conjunction with the first pressure gauge 211, it intuitively displays pressure data, providing a real-time basis for the booster assembly 2 to control the inflation pressure, ensuring that the air pressure in the first pipeline 100 is stable and controllable, and improving the accuracy and operational convenience of pressure detection during sealing testing.

[0050] like Figure 1-Figure 2 As shown, a first flange 101 is provided at the first end of the first pipe 100. The booster assembly 2 also includes a first connection base 25, which can overlap with the first flange 101. The first connection base 25 is provided with a first communication hole 251, and the first connection pipe 22 is connected to the first communication hole 251. The first flange 101 at the first end of the first pipe 100 overlaps with the first connection base 25 of the booster assembly 2. The first communication hole 251 enables rapid connection between the first connection pipe 22 and the first pipe 100, ensuring no leakage during gas transmission. It also facilitates the installation, disassembly, and maintenance of the booster assembly 2, improving the assembly efficiency and structural reliability of the seal detection device.

[0051] like Figure 1-Figure 2 As shown, in this embodiment, the boost assembly 2 also includes a first threaded pipe seat 28 and a first threaded joint 29. The first threaded pipe seat 28 is fixedly mounted at the first connecting hole 251, located on the side of the first connecting base 25 away from the first flange 101, and is connected to the first connecting hole 251. One end of the first threaded joint 29 is threadedly connected to the first threaded pipe seat 28, and the other end is connected to the first connecting pipe 22. On the one hand, the sealing performance of the threaded fit ensures that there is no leakage during the gas transmission process, ensures the stability of the gas connection between the first pipeline 100 and the first gas source 24, and improves the reliability of gas transmission. On the other hand, the first connecting pipe 22 and the first connecting base 25 can be quickly disassembled and tightly fixed, which facilitates the flexible adjustment of the installation angle of the first connecting pipe 22 or the replacement of components according to detection requirements, thereby improving the assembly convenience and structural reliability of the boost assembly 2.

[0052] like Figure 1-Figure 2As shown, the boost assembly 2 also includes a first gasket 26, which is sandwiched between the first connection base 25 and the first flange 101. On the one hand, the first gasket 26 fills the slight gap in the contact surface between the first connection base 25 and the first flange 101 through elastic deformation, thereby enhancing the sealing of the connection between the two, effectively preventing gas leakage from the overlapped portion, and ensuring the stability of the gas pressure input into the first pipeline 100. This provides a key sealing guarantee for the stable operation of the boost link during the sealing test process, ensuring that subsequent test data is accurate and reliable. On the other hand, the buffering performance of the first gasket 26 can effectively absorb mechanical vibration and stress during the installation process, avoid wear or loosening of components caused by rigid connections, and extend the service life of the sealing test device.

[0053] like Figure 1-Figure 2 As shown, the second end of the first pipe 100 is provided with a second flange 102. The inspection assembly 3 also includes a second connection base 33 and a second connection pipe 32. The second connection base 33 can overlap with the second flange 102. A second communication hole 331 is provided on the second connection base 33. One end of the second connection pipe 32 is connected to the second communication hole 331, and the other end is connected to the second pressure detection member 31. The second flange 102 at the second end of the first pipe 100 overlaps with the second connection base 33 of the inspection assembly 3. The second communication hole 331 enables rapid connection between the second connection pipe 32 and the pipe, ensuring no leakage during gas transmission. It also facilitates the installation, disassembly, and maintenance of the inspection assembly 3, improving the assembly efficiency and structural reliability of the sealing detection device.

[0054] Specifically, the second pressure sensing element 31 is used to detect the gas pressure within the second connecting tube 32. The second connecting tube 32 reliably connects the first pipeline 100 with the second pressure sensing element 31. By detecting the gas pressure within the second connecting tube 32, the gas pressure within the chamber enclosed by the second end of the first pipeline 100 and the isolation capsule 11 is reflected in real time, accurately determining the sealing performance between the isolation capsule 11 and the inner wall of the first pipeline 100. This ensures accurate and reliable pressure detection data, provides a direct basis for sealing performance evaluation, and improves detection efficiency and the credibility of the results.

[0055] It is worth noting that the second pressure detection component 31 includes a second pressure gauge 311 and a second three-way test valve 312. The first end of the second three-way test valve 312 is disposed on the second connecting pipe 32, and the second end of the second three-way test valve 312 is connected to the second pressure gauge 311. The second pressure gauge 311 is used to detect the gas pressure within the second connecting pipe 32. The second three-way test valve 312 is easy to install and maintain, and can switch detection states without interrupting the gas circuit. In conjunction with the second pressure gauge 311, it intuitively displays pressure data, providing a real-time basis for determining the sealing between the isolation bladder 11 and the inner wall of the first pipe 100, ensuring an efficient and reliable detection process and improving the accuracy and ease of operation of pressure detection.

[0056] like Figure 1-Figure 2 As shown, in this embodiment, the inspection component 3 also includes a second threaded tube seat 36 and a second threaded joint 37. The second threaded tube seat 36 is fixed at the second connecting hole 331, located on the side of the second connecting base 33 away from the second flange 102, and is connected to the second connecting hole 331. One end of the second threaded joint 37 is threadedly connected to the second threaded tube seat 36, and the other end is connected to the second connecting pipe 32. On the one hand, the sealing performance of the threaded fit ensures that there is no leakage in the gas transmission process, ensures the stability of the gas connection between the first pipeline 100 and the second pressure detection component 31, and improves the reliability of pressure detection. On the other hand, the second connecting pipe 32 and the second connecting base 33 can be quickly disassembled and tightly fixed, which facilitates the flexible adjustment of the installation angle of the second connecting pipe 32 or the replacement of components according to the detection requirements, thereby improving the assembly convenience and structural reliability of the inspection component 3.

[0057] like Figure 1-Figure 2 As shown, the inspection assembly 3 also includes a second gasket 34, which is sandwiched between the second connection base 33 and the second flange 102. On the one hand, the second gasket 34 elastically deforms to fill the slight gap between the second connection base 33 and the second flange 102, enhancing the sealing of the connection between the two, effectively preventing gas leakage from the overlapped area, and ensuring the accuracy of the detection data of the second pressure detection member 31. On the other hand, the cushioning performance of the second gasket 34 effectively absorbs mechanical vibration and stress during installation, preventing component wear or loosening caused by rigid connection, and extending the service life of the sealing detection device.

[0058] like Figure 1-Figure 2 As shown, the inflatable assembly 4 also includes a third connecting tube 42 and a second control valve 43. One end of the third connecting tube 42 is connected to the isolation bladder 11, and the other end is connected to the first end of the second control valve 43. The second end of the second control valve 43 is connected to a second air source 44. The second control valve 43 is used to connect or disconnect the third connecting tube 42 from the second air source 44. The inflatable assembly 4 is connected to the isolation bladder 11 via one end of the third connecting tube 42, and the second control valve 43 is used to control the connection between the third connecting tube 42 and the second air source 44. This allows the air pressure in the isolation bladder 11 to be flexibly adjusted according to actual needs.

[0059] Specifically, when the isolation bag 11 needs to be inflated, the second control valve 43 is opened to connect the third connecting pipe 42 with the second gas source 44, so that the gas can smoothly enter the isolation bag 11 to achieve expansion or pressure regulation of the isolation bag 11; when it is necessary to maintain the air pressure in the isolation bag 11 stable or perform a deflation operation, the second control valve 43 is closed to disconnect the third connecting pipe 42 from the second gas source 44 to prevent gas leakage.

[0060] like Figure 1-Figure 2As shown, a second pipe 200 is provided at the opening of the first pipe 100 and is connected thereto. The extension direction of the second pipe 200 forms an angle with the extension direction of the first pipe 100, and the angle is greater than 0 degrees and less than 180 degrees. A third flange 201 is provided at the end of the second pipe 200. The blocking member 12 can overlap with the third flange 201 and block the second pipe 200. The blocking member 12 is provided with a third connecting hole 121, through which the inflatable component 4 can pass and communicate with the isolation bladder 11. On the one hand, the second pipe 200 at the opening of the first pipe 100 extends at an angle and overlaps with the blocking member 12 through the third flange 201 to achieve a quick and sealed connection. The third connecting hole 121 provides a passage for the inflatable component 4 to facilitate the inflation of the isolation bladder 11. On the other hand, a flexible spatial layout is provided for the placement and inflation of the isolation bladder 11, simplifying the installation process, improving the operational convenience of the sealing detection device, and ensuring the efficient implementation of the sealing detection work.

[0061] In this embodiment, the extension direction of the second pipe 200 is perpendicular to the extension direction of the first pipe 100, that is, the angle is 90 degrees. In other embodiments, the angle can also be 45 degrees, 60 degrees, 75 degrees, etc., which is not specifically limited here.

[0062] Specifically, one end of the third connecting tube 42 of the inflatable component 4 passes through the third communicating hole 121 and communicates with the isolation bladder 11, while the other end communicates with the second gas source 44. The third connecting tube 42 of the inflatable component 4 communicates with the isolation bladder 11 through the third communicating hole 121 of the blocking member 12, forming an independent inflation channel. This ensures the tightness of the isolation bladder 11 during inflation while avoiding interference with the pressure environment within the first conduit 100, ensuring an efficient and reliable inflation process and improving the accuracy of the test results.

[0063] In this embodiment, the third pressure detection component 41 is used to detect the gas pressure within the third connecting tube 42. The third pressure detection component 41 includes a third pressure gauge 411 and a third three-way test valve 412. The first end of the third three-way test valve 412 is disposed on the third connecting tube 42, and the second end of the third three-way test valve 412 is connected to the third pressure gauge 411. The third pressure gauge 411 is used to detect the gas pressure within the third connecting tube 42. The third three-way test valve 412 is easy to install and maintain, and can switch detection states without interrupting the gas circuit. In conjunction with the third pressure gauge 411, it intuitively displays pressure data, providing a real-time basis for the inflatable component 4 to control the inflation pressure, ensuring that the air pressure within the isolation bladder 11 is stable and controllable, and improving the accuracy and operational convenience of pressure detection during sealing testing.

[0064] like Figure 1-Figure 2As shown, in this embodiment, the boosting component 2 also includes a first air release valve 27, which is arranged on the first connecting pipe 22 and is used to release the gas in the first pipeline 100; the inspection component 3 also includes a second air release valve 35, which is arranged on the second connecting pipe 32 and is used to release the gas in the first pipeline 100; the inflation component 4 also includes a third air release valve 45, which is arranged on the third connecting pipe 42 and is used to release the gas in the isolation bag 11.

[0065] In summary, the present embodiment discloses a sealing detection method, which is applied to the above-mentioned sealing detection device, and includes the following steps:

[0066] S1: The isolation capsule 11 extends from the opening provided on the peripheral wall of the first pipe 100 and is placed in the first pipe 100;

[0067] S2: The blocking member 12 blocks the opening;

[0068] S3: The second gas source 44 inflates the isolation bag 11. The third pressure detection element 41 detects the gas pressure in the isolation bag 11 from the second gas source 44 in real time. The inflated isolation bag 11 abuts against the inner wall of the first pipe 100.

[0069] S4: The first gas source 24 inflates the first pipe 100, and the gas pressure of the chamber enclosed by the first end of the first pipe 100 and the isolation bag 11 is detected in real time through the first pressure detection component 21, and the gas pressure of the chamber enclosed by the second end of the first pipe 100 and the isolation bag 11 is detected in real time through the second pressure detection component 31.

[0070] In this embodiment, the following steps are further included before step S1:

[0071] S01: Complete the connection between the components of the boost assembly 2, sandwich the first gasket 26 between the first connection base 25 and the first flange 101 and tighten them;

[0072] S02: One end of the third connecting tube 42 is connected to the isolation bag 11 , and the other end is passed through the blocking member 12 , and the third connecting tube 42 is disconnected from the second gas source 44 .

[0073] In this embodiment, after step S1 and before step S2, the following steps are further included:

[0074] S11: Observe the installation status of the isolation capsule 11 through the second flange 102 and adjust the installation posture of the isolation capsule 11 so that the central axis of the isolation capsule 11 is collinear with the central axis of the first pipe 100.

[0075] In this embodiment, after step S2 and before step S3, the following steps are further included:

[0076] S21: The third connecting pipe 42 is connected to the second gas source 44;

[0077] S22: The first control valve 23, the second control valve 43, the first air release valve 27, the second air release valve 35, and the third air release valve 45 are placed in the closed state, and the first three-way test valve 212, the second three-way test valve 312, and the third three-way test valve 412 are placed in the open state.

[0078] In this embodiment, step S3 includes:

[0079] The second gas source 44 inflates the isolation bag 11, and the gas pressure in the isolation bag 11 is detected by the third pressure detection component 41, and the gas pressure in the isolation bag 11 is controlled to gradually increase to a first preset pressure. When the gas pressure in the isolation bag 11 increases to the first preset pressure, the isolation bag 11 abuts against the inner wall of the first pipe 100; after each gas pressure increase, check whether there is any leakage at the connection between the components of the booster component 2 and the inflation component 4.

[0080] In this embodiment, the second gas source 44 is controlled in stages to inflate the isolation bag 11, and the third pressure detection component 41 is used to detect the pressure in real time. The isolation bag 11 is gradually abutted against the inner wall of the first pipe 100 through staged inflation to ensure a reliable installation state.

[0081] S3 also includes: using an airtightness test liquid to detect whether there is leakage at the connection between the components of the booster component 2 and the inflatable component 4. The airtightness test liquid is used to visually judge the leakage situation, and the sealing of the connection between the components of the booster component 2 and the inflatable component 4 can be gradually checked.

[0082] Optionally, in this embodiment, step S3 includes:

[0083] S301: The second control valve 43 is opened, and the second gas source 44 inflates the isolation bag 11. When the gas pressure detected by the third pressure detection element 41 reaches 50% of the first preset pressure of the isolation bag 11, the second control valve 43 is closed, and the second gas source 44 stops inflating the isolation bag 11.

[0084] S302: Observe the installation status of the isolation bag 11 through the second flange 102, and use airtightness testing liquid to detect whether there is any leakage at the connection between the booster component 2 and the inflatable component 4. Maintain the pressure for a period of time and no abnormality occurs;

[0085] S303: The second control valve 43 is opened, and the second gas source 44 inflates the isolation bag 11. When the gas pressure detected by the third pressure detection element 41 reaches 75% of the first preset pressure of the isolation bag 11, the second control valve 43 is closed, and the second gas source 44 stops inflating the isolation bag 11.

[0086] S304: Repeat step S302;

[0087] S305: The second control valve 43 is opened, and the second gas source 44 inflates the isolation bag 11. When the gas pressure detected by the third pressure detection element 41 reaches 100% of the first preset pressure of the isolation bag 11, the second control valve 43 is closed, and the second gas source 44 stops inflating the isolation bag 11.

[0088] S306: Repeat step S302, and now the isolation capsule 11 abuts against the inner wall of the first pipe 100;

[0089] S307: Complete the connection between the components of the inspection assembly 3, and clamp the second gasket 34 between the second connection base 33 and the second flange 102 and tighten them.

[0090] In other embodiments, the second gas source 44 inflates the isolation bag 11 through the second control valve 43, which can also be divided into two stages, four stages, five stages, etc. The ratio of the injected gas pressure to the first preset pressure is also not unique and is not specifically limited here.

[0091] Optionally, the air tightness detection liquid is soapy water, halogen leak detection liquid, etc., which is not specifically limited here.

[0092] In this embodiment, step S4 includes:

[0093] The first gas source 24 inflates the first pipe 100, and the first pressure detection component 21 detects the gas pressure in the chamber enclosed by the first end of the first pipe 100 and the isolation bag 11, and controls the gas pressure in the chamber enclosed by the first end of the first pipe 100 and the isolation bag 11 to gradually increase to a second preset pressure. After each increase in gas pressure, check whether there is any leakage at the connection between the components of the boosting component 2, the inspection component 3, and the inflation component 4.

[0094] In this embodiment, the second preset pressure is defined as the test pressure, and step S4 includes:

[0095] S401: The first control valve 23 is placed in an open state, and the first gas source 24 inflates the first end of the first pipe 100 and the chamber enclosed by the isolation bag 11. When the gas pressure value detected by the first pressure detection element 21 reaches 50% of the second preset pressure, the first gas source 24 stops inflating the first end of the first pipe 100 and the chamber enclosed by the isolation bag 11.

[0096] S402: Use airtightness testing liquid to detect whether there is leakage at the connection between the booster component 2, the inspection component 3, and the inflation component 4, and maintain the pressure for a period of time. No abnormality occurs;

[0097] S403: The first control valve 23 is placed in an open state, and the first gas source 24 inflates the first end of the first pipe 100 and the chamber enclosed by the isolation bag 11. When the gas pressure value detected by the first pressure detection element 21 reaches 75% of the second preset pressure, the first gas source 24 stops inflating the first end of the first pipe 100 and the chamber enclosed by the isolation bag 11.

[0098] S404: Repeat step S402;

[0099] S405: The first control valve 23 is placed in an open state, and the first gas source 24 inflates the first end of the first pipe 100 and the chamber enclosed by the isolation bag 11. When the gas pressure value detected by the first pressure detection element 21 reaches a second preset pressure of 100%, the first gas source 24 stops inflating the first end of the first pipe 100 and the chamber enclosed by the isolation bag 11.

[0100] S406: Repeat step S402.

[0101] In this embodiment, the first gas source 24 is controlled in stages to inflate the first end of the first pipe 100 and the chamber enclosed by the isolation bag 11 through the first control valve 23, and the pressure is detected in real time by the first pressure detection component 21. On the one hand, the staged pressure increase method can avoid the impact of a sudden pressure increase on the structure, maintain the pressure at each pressure node and repeat the detection, which can ensure the stability of the structure at different pressure levels, effectively improve the air tightness and pressure-bearing reliability of the overall structure, and ensure that the isolation bag 11 and the inner wall of the first pipe 100 are in good contact within the entire pressure range; on the other hand, with the help of air tightness detection liquid, the leakage point can be visually checked, and the sealing of the joints of the various components of the booster component 2, the inspection component 3, and the inflation component 4 can be checked step by step.

[0102] In other embodiments, the first gas source 24 inflates the first end of the first pipe 100 and the chamber enclosed by the isolation bag 11 through the first control valve 23. It can also be divided into two stages, four stages, five stages, etc. The ratio of the injected gas pressure to the second preset pressure is also not unique and is not specifically limited here.

[0103] In this embodiment, step S4 further includes the following steps:

[0104] S41: Slowly open the first air release valve 27, the second air release valve 35 and the third air release valve 45 until the pressure values ​​of the first pressure gauge 211, the second pressure gauge 311 and the third pressure gauge 411 are 0, and then disassemble the components.

[0105] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A sealing detection device, characterized in that: include: An isolation assembly (1) comprises an isolation bag (11) and a blocking member (12), wherein the isolation bag (11) can be inserted into an opening provided on a peripheral wall of a first pipe (100) and placed in the first pipe (100), the isolation bag (11) can abut against the inner wall of the first pipe (100) to block the first pipe (100), and the blocking member (12) can block the opening; The pressurizing assembly (2) comprises a first gas source (24) and a first pressure detecting element (21), wherein the first gas source (24) is in communication with the first end of the first pipe (100) and is capable of inflating gas into the first pipe (100), and the first pressure detecting element (21) is configured to detect the gas pressure in the chamber enclosed by the first end of the first pipe (100) and the isolation bag (11); a test assembly (3) comprising a second pressure detection member (31), the second pressure detection member (31) being arranged at the second end of the first pipe (100) and configured to detect the gas pressure in the chamber enclosed by the second end of the first pipe (100) and the isolation bag (11); The inflation assembly (4) comprises a second gas source (44) and a third pressure detection component (41), wherein the second gas source (44) is connected to the isolation bag (11) and is capable of inflating the isolation bag (11), and the third pressure detection component (41) is configured to detect the gas pressure input into the isolation bag (11).

2. The sealing detection device according to claim 1, characterized in that: The boost assembly (2) further comprises a first connecting pipe (22) and a first control valve (23), wherein one end of the first connecting pipe (22) is in communication with the first pipeline (100), and the other end is connected to a first end of the first control valve (23), and a second end of the first control valve (23) is connected to the first gas source (24), and the first control valve (23) is configured to connect or disconnect the first connecting pipe (22) from the first gas source (24).

3. The sealing detection device according to claim 2, characterized in that: The first end of the first pipe (100) is provided with a first flange (101), and the boost assembly (2) further includes a first connecting base (25), the first connecting base (25) can overlap and cooperate with the first flange (101), the first connecting base (25) is provided with a first communicating hole (251), and the first connecting pipe (22) is connected to the first communicating hole (251).

4. The sealing detection device according to claim 3, characterized in that: The boost assembly (2) further includes a first gasket (26), which is sandwiched between the first connection base (25) and the first flange (101).

5. The sealing detection device according to claim 1, characterized in that: The second end of the first pipe (100) is provided with a second flange (102), and the inspection assembly (3) further includes a second connecting base (33) and a second connecting pipe (32), wherein the second connecting base (33) can overlap and cooperate with the second flange (102), and the second connecting base (33) is provided with a second communicating hole (331), and one end of the second connecting pipe (32) is connected to the second communicating hole (331), and the other end is connected to the second pressure detection member (31).

6. The sealing detection device according to any one of claims 1 to 5, characterized in that: The inflation assembly (4) further includes a third connecting pipe (42) and a second control valve (43), one end of the third connecting pipe (42) being connected to the isolation bag (11), and the other end being connected to the first end of the second control valve (43), the second end of the second control valve (43) being connected to the second gas source (44), and the second control valve (43) being configured to connect or disconnect the third connecting pipe (42) from the second gas source (44).

7. The sealing detection device according to any one of claims 1 to 5, characterized in that: A second pipe (200) is provided at the opening of the first pipe (100) and is in communication with the first pipe (100). The extension direction of the second pipe (200) forms an angle with the extension direction of the first pipe (100), and the angle is greater than 0 degrees and less than 180 degrees. A third flange (201) is provided at the end of the second pipe (200). The blocking member (12) can overlap and cooperate with the third flange (201) to block the second pipe (200). A third communicating hole (121) is provided on the blocking member (12). The inflatable component (4) can pass through the third communicating hole (121) and be in communication with the isolation bag (11).

8. A sealing detection method, characterized in that: Applicable to the sealing detection device according to any one of claims 1 to 7, the sealing detection method comprises the following steps: S1: The isolation bag (11) extends from the opening provided on the peripheral wall of the first pipe (100) and is placed in the first pipe (100); S2: the blocking member (12) blocks the opening; S3: the second gas source (44) inflates the isolation bag (11), and the gas pressure input into the isolation bag (11) from the second gas source (44) is detected in real time by the third pressure detection element (41). The inflated isolation bag (11) abuts against the inner wall of the first pipe (100); S4: The first gas source (24) inflates the first pipe (100), and the gas pressure of the chamber enclosed by the first end of the first pipe (100) and the isolation bag (11) is detected in real time by the first pressure detecting element (21), and the gas pressure of the chamber enclosed by the second end of the first pipe (100) and the isolation bag (11) is detected in real time by the second pressure detecting element (31).

9. The sealing detection method according to claim 8, characterized in that: The S3 includes: the second gas source (44) inflates the isolation bag (11), the gas pressure in the isolation bag (11) is detected by the third pressure detection component (41), and the gas pressure in the isolation bag (11) is controlled to gradually increase to a first preset pressure. When the gas pressure in the isolation bag (11) increases to the first preset pressure, the isolation bag (11) abuts against the inner wall of the first pipe (100). After each increase in gas pressure, whether there is leakage at the connection between the components of the boosting component (2) and the inflation component (4) is detected.

10. The sealing detection method according to claim 9, characterized in that: The S3 further includes: using an airtightness detection liquid to detect whether there is leakage at the connection between the components of the boosting component (2) and the inflation component (4).

Images