Membrane module leakage point rapid detection portable device and implementation method

Abstract

The invention is applicable to the technical field of ultrafiltration membrane preparation, and provides a portable device for rapid detection of a leakage point of a membrane module and an implementation method, the portable device for rapid detection of the leakage point of the membrane module comprises a detection clamp arranged in a central tube of an ultrafiltration membrane, the detection clamp is of a tubular structure, and two symmetrical bosses are arranged on the outer wall of one end of the detection clamp; wherein two symmetrical groove slide ways are arranged on the inner wall of the central pipe, an annular clamping groove is formed in the position, close to the end, of the inner wall of the central pipe, and the two bosses are matched with the two groove slide ways and slide into the annular clamping groove from the groove slide ways. According to the portable device for rapidly detecting the leakage point of the membrane module and the implementation method, when integrity detection is carried out on an ultrafiltration module, the functions of being convenient to carry and transport, efficient, rapid to assemble and convenient to operate are achieved, through the device, the convenience for engineering maintenance personnel to carry clamps is improved, and the working efficiency of integrity detection of the membrane module on an engineering site is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of ultrafiltration membrane making, and in particular relates to a portable device for rapid detection of leakage points of a membrane component and an implementation method thereof. Background Art

[0002] In ultrafiltration membrane system project engineering, when the membrane system needs to be tested for integrity after running for a certain period of time, a mechanical clamp for integrity and airtightness testing is usually required. Especially for large-sized membrane components with a diameter of more than 200 mm, the test fixtures used in production often have problems such as being too large in size, not easy to carry, and time-consuming and labor-intensive to install and disassemble. There is an urgent need to solve the problems of portability and simplicity at the membrane project site. Summary of the invention

[0003] In order to solve the technical problems that the detection fixture has large dimensions, is not easy to carry, and is time-consuming and labor-intensive to install and disassemble, the present invention provides a portable device for rapid detection of leakage points of membrane components and an implementation method.

[0004] The present invention is implemented as follows: a portable device for quickly detecting leakage points of a membrane assembly comprises: a detection fixture arranged in the central tube of an ultrafiltration membrane, the detection fixture being a tubular structure, and having two symmetrical bosses on the outer wall at one end; wherein, two symmetrical groove slideways are arranged on the inner wall of the central tube, and an annular groove is arranged near the end of the inner wall, the two bosses are adapted to the two groove slideways, and slide from the groove slideways into the annular groove, and by rotating the detection fixture, the two bosses can be disengaged from the groove slideways and rotated into the annular groove, thereby limiting the two bosses, thereby limiting the detection fixture and avoiding being pulled out by an outward pulling force.

[0005] Preferably, a side cover is installed at one end of the detection fixture located outside the central tube, and a detection air inlet is provided on the side cover, and gas is filled through the detection air inlet to perform airtight detection.

[0006] Preferably, teeth are provided on the two bosses, and two sections of anti-foolproof tooth grooves are provided on the inner wall of the annular groove, which are used to engage with the teeth to lock the two bosses to prevent them from rotating and sliding into the groove slideway, and two symmetrical locking mechanisms are provided on the detection fixture, which are used to provide thrust to enable the teeth on the boss to engage with the anti-foolproof tooth grooves, and also to enable the teeth to disengage from the anti-foolproof tooth grooves, thereby enabling the detection fixture to rotate, slide into the groove slideway and be pulled out.

[0007] Preferably, the locking mechanism includes: a first mounting groove arranged on the outer wall of the detection fixture; a fixing rod fixedly installed on the inner walls on both sides of the first mounting groove, the fixing rod is arranged parallel to the detection fixture, the boss is slidably sleeved on the fixing rod and is slidably connected to the inner wall of the first mounting groove; a first spring slidably sleeved on the fixing rod, used to provide elastic force to make the teeth on the boss contact and engage with the anti-fool tooth groove.

[0008] Preferably, a primary jacket is also provided in the detection fixture, which is used to extend the overall length of the detection fixture assembly according to the length requirement of the central tube of the membrane assembly to be detected. The primary jacket is slidably mounted on the inner wall of the detection fixture, and a plurality of symmetrical positioning mechanisms are provided on the primary jacket, which are used to fix the primary jacket after the extended length of the primary jacket is adjusted to prevent it from being pulled out.

[0009] Preferably, the positioning mechanism includes: a second mounting groove provided on the outer wall of the primary jacket; a fixed shaft fixedly installed on the inner walls on both sides of the second mounting groove, and the fixed shaft is arranged parallel to the primary jacket; a connecting piece rotatably mounted on the fixed shaft, and a fixing pin is fixedly installed on one side of the connecting piece; a torsion spring movably mounted on the fixed shaft, and one end of the torsion spring is inserted into a limiting hole provided on the connecting piece; wherein, two rows of symmetrically arranged entry grooves and two rows of positioning slots are provided on the inner wall of the detection fixture, and the fixing pin is inserted into the positioning slot from the entry groove under the torsion force of the torsion spring.

[0010] Preferably, the fixing pin is hemispherical. When the worker rotates the first-level jacket, the fixing pin is disengaged from the positioning slot and is squeezed by the inner wall of the detection fixture and received in the second installation slot. At this time, the extension length of the first-level jacket can be further adjusted by pushing and pulling the first-level jacket.

[0011] Preferably, a secondary jacket is provided inside the primary jacket, and the same positioning mechanism is provided between the secondary jacket and the primary jacket to position them. In this way, multiple jackets can be provided to meet the detection needs of central tubes of different lengths, and the side cover is finally installed at one end of the innermost jacket.

[0012] Preferably, a handle is also provided on the side cover for carrying the device, and the handle is U-shaped with L-shaped connecting blocks connected at both ends. Two fixing mechanisms are provided on the side cover for installing two L-shaped connecting blocks, and the fixing mechanisms include: a fixing frame fixedly installed on one side of the side cover; a pull rod slidably installed on the inner wall of a sliding hole opened on the fixing frame; a pin fixedly installed at one end of the pull rod, and the pin passes through a pin hole opened on the L-shaped connecting block; a second spring slidably sleeved on the pull rod, for pushing the pin into the pin hole on the L-shaped connecting block through elastic force.

[0013] The present invention also provides a method for implementing a portable device for rapid detection of membrane module leakage points, the method comprising the steps of:

[0014] S1. Assemble the inspection fixture: align the boss of the inspection fixture with the groove slide of the center tube, insert it into the bottom, and rotate the inspection fixture so that the boss of the inspection fixture engages with the annular groove at the bottom of the center tube to achieve the locking and positioning effect. The mechanical locking structure of the boss and the annular groove is used to achieve limited fixation.

[0015] S2. Disassemble the inspection fixture: According to S1, rotate the inspection fixture in the opposite direction so that the boss is aligned with the groove slideway, so that the boss is separated from the annular groove, and then pull out the inspection fixture completely to complete the rapid disassembly of the inspection fixture;

[0016] S3. Adjustment of the locking mechanism: When the locking mechanism is provided, when installing the detection fixture, after the boss slides into the annular groove through the groove slideway, the detection fixture is rotated to make the boss disengage from the groove slideway and enter a section of the annular groove where no fool-proofing tooth groove is provided, and then the detection fixture is pulled to make the boss close to the inner wall of the annular groove away from the fool-proofing tooth groove, and then the detection fixture is continued to be rotated, and then the detection fixture is pushed to make the teeth on the boss close to the fool-proofing tooth groove and mesh with it. Under the elastic force of the first spring, the teeth on the boss are always meshed with the fool-proofing tooth groove, thereby preventing the detection fixture from being rotated and disengaging from the annular groove and then sliding into the groove slideway; when disassembling, the reverse operation can be performed;

[0017] S4. Installation and adjustment of the first-stage jacket:

[0018] According to the length of the central tube of the membrane assembly to be tested, adjust and install the first-level jacket. After adjusting the extended length of the first-level jacket, rotate the first-level jacket so that the fixing pin of the positioning mechanism enters the positioning slot from the entry slot to achieve fixation; reversely rotate the first-level jacket so that the fixing pin is separated from the positioning slot and enters the slot, and then push and pull the first-level jacket to adjust the length. During the adjustment process, the fixing pin is squeezed by the inner wall of the detection fixture and received in the second installation slot;

[0019] S5. Setting of multi-stage jacket: install the second-stage jacket in the first-stage jacket, set the positioning mechanism to ensure stability, and so on, set the multi-stage jacket to meet the detection requirements of central tubes of different lengths;

[0020] S6. Assembly of side cover and handle:

[0021] Install the handle: Install the L-shaped connection block of the U-shaped handle on the side cover through the fixing mechanism to ensure a firm connection;

[0022] Operation of the fixing mechanism: The pin on the pull rod is inserted into the pin hole of the L-shaped connecting block, and the second spring provides elastic force to fix it. When the handle needs to be removed, pull the pull rod to disengage the pin from the pin hole on the L-shaped connecting block, and then pull out the L-shaped connecting block to separate it from the side cover, thereby realizing quick disassembly and installation of the handle.

[0023] Compared with the related art, the portable device for rapid detection of membrane module leakage points and the implementation method provided by the present invention have the following beneficial effects:

[0024] The device is compact in design and light in weight, and is easy to carry and transport on site. It is particularly suitable for rapid on-site detection. The device adopts a quick connection and locking mechanism, which simplifies the installation and disassembly process and improves work efficiency.

[0025] Adaptability: The device design takes into account the testing requirements of membrane modules of different lengths and sizes. Through modular design and adjustable jackets, it is suitable for membrane modules of various specifications.

[0026] Compared with the prior art, the device and method of the present invention provide higher portability, simplicity and efficiency in on-site membrane module integrity detection, while ensuring the safety of operation and meeting the actual needs of membrane engineering sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a side cross-sectional structure of a portable device for rapid detection of leakage points of a membrane module provided by the present invention installed on a central tube;

[0028] Figure 2 A schematic diagram of a side cross-sectional structure of a portable device for rapid detection of membrane module leakage provided by the present invention;

[0029] Figure 3 It is a schematic diagram of the side cross-sectional structure of the central tube in the present invention;

[0030] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of DD;

[0031] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure of EE;

[0032] Figure 6 for Figure 3 Schematic diagram of the cross-sectional structure of FF;

[0033] Figure 7 for Figure 3 Schematic diagram of the cross-sectional structure of the middle GG;

[0034] Figure 8 Schematic diagram of the three-dimensional structure of the central tube in the present invention;

[0035] Fig. 9 A side cross-sectional structural schematic diagram of another embodiment of the present invention;

[0036] Fig.10 for Fig. 9 An enlarged structural diagram of part A shown in FIG.

[0037] Fig.11 for Fig. 9 Schematic diagram of the cross-sectional structure of HH;

[0038] Fig.12 It is a schematic diagram of the side cross-sectional structure when the upper jacket is assembled in the present invention;

[0039] Fig.13 for Fig.12 An enlarged schematic diagram of the structure of part B shown in FIG.

[0040] Fig.14 for Fig.12 Schematic diagram of the cross-sectional structure of II;

[0041] Fig.15 for Fig.14 An enlarged schematic diagram of the structure of part C shown in FIG.

[0042] Fig.16 It is a schematic cross-sectional structure diagram of the detection fixture and the primary jacket in the present invention;

[0043] Fig.17 It is a schematic diagram of the top view and cross-section structure of the detection fixture, the entry slideway and the positioning slot in the present invention;

[0044] Fig.18 is a schematic diagram of a side cross-sectional structure of a further embodiment of the present invention;

[0045] Fig.19 A schematic diagram of a three-dimensional appearance of a further embodiment of the present invention;

[0046] Fig. 20 It is a side view cross-sectional installation schematic diagram of the handle in the present invention;

[0047] Fig.21 for Fig. 20 Schematic diagram of the enlarged structure of part J shown in FIG.

[0048] Figure numerals: 1. center tube; 2. detection fixture; 3. side cover; 4. detection air inlet; 5. handle; 6. L-shaped connecting block; 11. groove slide; 12. annular groove; 13. fool-proof tooth groove; 20. primary jacket; 21. boss; 22. first mounting groove; 23. fixing rod; 24. first spring; 25. tooth; 26. enter the slide groove; 27. positioning groove; 31. second mounting groove; 32. fixed shaft; 33. connecting plate; 34. fixing pin; 35. torsion spring; 36. limiting hole; 41. fixing frame; 42. pull rod; 43. pin; 44. second spring; 200. secondary jacket. DETAILED DESCRIPTION

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification of this application and the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0050] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0051] The embodiment of the present invention provides a portable device for rapid detection of membrane module leakage. Figure 1-8 As shown, a portable device for rapid detection of leakage points in a membrane assembly and an implementation method thereof include: a detection fixture 2 arranged in a central tube 1 of an ultrafiltration membrane, wherein the detection fixture 2 is a tubular structure, and two symmetrical bosses 21 are arranged on the outer wall at one end; wherein, two symmetrical groove slideways 11 are arranged on the inner wall of the central tube 1, and an annular groove 12 is arranged near the end of the inner wall, the two bosses 21 are adapted to the two groove slideways 11, and slide from the groove slideways 11 into the annular groove 12, and by rotating the detection fixture 2, the two bosses 21 can be disengaged from the groove slideways and rotated into the annular groove 12, thereby limiting the two bosses 21, thereby limiting the detection fixture 2 and avoiding being pulled out by an outward pulling force.

[0052] In this embodiment, the detection fixture 2 in the central tube 1 of the ultrafiltration membrane is a tubular structure, and two symmetrical bosses 21 are provided on the outer wall of one end thereof. Two symmetrical groove slideways 11 are specially designed on the inner wall of the central tube 1, and an annular groove 12 is provided near the end. Through ingenious design, the two bosses 21 match the groove slideways 11 and can slide from the groove slideways 11 into the annular groove 12. By simply rotating the detection fixture 2, the two bosses 21 can be disengaged from the groove slideways and rotated into the annular groove 12, achieving effective position limiting of the bosses 21, thereby ensuring the stable positioning of the detection fixture 2 and preventing it from being accidentally pulled out due to external force.

[0053] During use, the device is portable and efficient. Through the rapid rotation positioning mechanism, the installation and removal of the detection fixture can be conveniently carried out, which greatly improves the work efficiency. At the same time, the precise coordination of the boss and the groove ensures the stability during the detection process.

[0054] In a further preferred embodiment of the present invention, a side cover 3 is installed at one end of the detection fixture 2 located outside the central tube 1, and a detection air inlet 4 is provided on the side cover 3, and gas is filled through the detection air inlet 4 to perform airtight detection.

[0055] In this embodiment, a side cover 3 is cleverly installed at one end of the detection fixture 2 outside the central tube 1. The side cover 3 is detachably installed for easy disassembly and assembly. A detection air inlet 4 is specially provided on the side cover 3, through which gas can be directly charged to accurately detect the air tightness of the membrane assembly. This design not only simplifies the detection process, but also ensures high efficiency and accuracy of the detection.

[0056] In a further preferred embodiment of the present invention, (as shown in the attached Figure 9-11 (as shown) the two bosses 21 are provided with teeth 25, and the inner wall of the annular groove 12 is provided with two sections of anti-fool tooth grooves 13 spaced apart, which are used to engage with the teeth 25 to lock the two bosses 21 to prevent them from rotating and sliding into the groove slide 11, and the detection fixture 2 is provided with two symmetrical locking mechanisms, which are used to provide thrust to make the teeth on the boss 21 engage with the anti-fool tooth grooves 13, and also to make the teeth 25 disengage from the anti-fool tooth grooves 13, so as to realize the rotation of the detection fixture 2, so as to slide into the groove slide 11 and be pulled out.

[0057] In this embodiment, the two bosses 21 of the detection fixture 2 are specially provided with teeth 25, which mesh with the two sections of fool-proof tooth grooves 13 arranged at intervals on the inner wall of the annular groove 12. This design ensures the locking of the boss 21, and effectively prevents it from rotating and sliding back into the groove slideway 11 without an operation command. The two symmetrical locking mechanisms configured on the detection fixture 2 can provide precise thrust to make the teeth 25 on the boss 21 firmly mesh with the fool-proof tooth grooves 13, and also support the disengagement action of the teeth 25, ensuring that the detection fixture 2 can be rotated as needed and slide into the groove slideway 11, which is convenient for the installation and disassembly of the device.

[0058] This embodiment significantly improves the stability of the device and the flexibility of operation. The cooperation between the teeth 25 and the foolproof tooth grooves 13 enhances the fixation of the detection fixture during use, avoiding detection interruption or inaccurate data caused by accidental sliding. At the same time, the symmetrical locking mechanism design ensures the balance and efficiency of the operation, which not only ensures the safe positioning of the detection fixture 2, but also simplifies its installation and disassembly process, greatly facilitates on-site operation, improves detection efficiency, and ensures the accuracy and convenience of membrane component detection. .

[0059] In a further preferred embodiment of the present invention, (as shown in the attached Figure 9-10 The locking mechanism includes: a first mounting groove 22 arranged on the outer wall of the detection fixture 2; a fixing rod 23 fixedly installed on the inner walls on both sides of the first mounting groove 22, the fixing rod 23 is arranged parallel to the detection fixture 2, the boss 21 is slidably mounted on the fixing rod 23 and is slidably connected to the inner wall of the first mounting groove 22; a first spring 24 slidably mounted on the fixing rod 23, used to provide elastic force to make the teeth 25 on the boss 21 contact and mesh with the anti-fool tooth groove 13.

[0060] In this embodiment, the innovative design of the locking mechanism includes: a first mounting groove 22 provided on the outer wall of the detection fixture 2; a fixing rod 23 fixedly installed on the inner walls on both sides of the first mounting groove 22, these fixing rods 23 are arranged in parallel with the detection fixture 2, the boss 21 can be slidably mounted on the fixing rod 23, and at the same time, it is slidably connected with the inner wall of the first mounting groove 22; and a first spring 24 slidably mounted on the fixing rod 23, the spring provides elastic force to ensure that the teeth 25 on the boss 21 can be in close contact with the foolproof tooth groove 13 and achieve a stable meshing. This design significantly enhances the stability and operational reliability of the detection fixture 2 during use. Through the cooperation of the fixing rod 23 and the first spring 24, not only the stable sliding of the boss 21 is achieved, but also the precise meshing of the teeth 25 with the foolproof tooth groove 13 is ensured, which effectively avoids the accidental movement or rotation of the detection fixture 2 during the detection process, and greatly improves the accuracy of the detection. At the same time, the elastic mechanism of the first spring 24 simplifies the operation process, making the installation and disassembly process of the detection fixture 2 more convenient, and can achieve rapid positioning and release without complicated tools, greatly improving the efficiency and convenience of on-site operations.

[0061] In a further preferred embodiment of the present invention, as shown in the attached Figure 12-17 As shown, a primary jacket 20 is also provided in the detection fixture 2, which is used to extend the overall length of the detection fixture 2 assembly according to the length requirement of the central tube 1 of the membrane assembly to be detected. The primary jacket 20 is slidably installed on the inner wall of the detection fixture 2, and a plurality of symmetrical positioning mechanisms are provided on the primary jacket 20, which are used to fix the primary jacket 20 after adjusting the extended length of the primary jacket 20 to prevent it from being pulled out.

[0062] In this embodiment, the provision of the primary jacket 20 significantly improves the adaptability and flexibility of the detection fixture 2. The primary jacket 20 can be adjusted in length according to the length of the central tube 1 of the membrane assembly to be detected, ensuring that the detection fixture 2 assembly can adapt to central tubes of different lengths, thereby expanding the application range of the device. By being slidably mounted on the inner wall of the detection fixture 2, the primary jacket 20 can be extended or retracted according to actual needs to achieve adjustment of the overall length of the detection fixture.

[0063] The setting of multiple two-by-two symmetrical positioning mechanisms ensures that after adjusting the extension length of the primary jacket 20, it can be fixed to avoid being pulled out during the detection process. This design enhances the stability and safety of the detection fixture. The user can accurately adjust the position of the primary jacket 20 according to specific detection requirements, and ensure that it remains fixed during the detection process through the positioning mechanism, thereby ensuring the accuracy and reliability of the detection. This design not only improves the versatility of the detection device, but also simplifies the operation process, allowing the device to adapt to different detection tasks more quickly and improve work efficiency. At the same time, the design of the positioning mechanism also takes into account the convenience of operation, making it easier for users to adjust and fix the primary jacket 20, reducing operation time and labor intensity.

[0064] In a further preferred embodiment of the present invention, as shown in the attached Figure 13-16 As shown, the positioning mechanism includes: a second mounting groove 31 provided on the outer wall of the primary jacket 20; a fixed shaft 32 fixedly installed on the inner walls on both sides of the second mounting groove 31, and the fixed shaft 32 is arranged parallel to the primary jacket 20; a connecting piece 33 rotatably sleeved on the fixed shaft 32, and a fixing pin 34 is fixedly installed on one side of the connecting piece 33; a torsion spring 35 movably sleeved on the fixed shaft 32, and one end of the torsion spring 35 is inserted into the limiting hole 36 provided on the connecting piece 33; wherein, two rows of symmetrically arranged entry slots 26 and two rows of positioning slots 27 are provided on the inner wall of the detection fixture 2, and the fixing pin 34 is inserted into the positioning slot 27 from the entry slot 26 under the torsion of the torsion spring 35.

[0065] In this embodiment, the ingenious design of the positioning mechanism ensures that the primary jacket 20 is firmly fixed after the extension length is adjusted. The positioning mechanism includes a second mounting groove 31 provided on the outer wall of the primary jacket 20, and a fixed shaft 32 fixedly installed on the inner walls on both sides of the groove. The fixed shaft 32 is arranged parallel to the primary jacket 20 to ensure the stability of the structure. A connecting piece 33 rotatably sleeved on the fixed shaft 32 has a fixed pin 34 fixedly installed on one end, and a torsion spring 35 movably sleeved on the fixed shaft 32 has one end inserted into the limiting hole 36 on the connecting piece 33, forming an automatic positioning and release mechanism.

[0066] Two rows of symmetrical entry slots 26 and positioning slots 27 are specially arranged on the inner wall of the detection fixture 2. When the primary jacket 20 is adjusted to the required position, the fixing pin 34 can be accurately inserted into the positioning slot 27 from the entry slot 26 under the torsion of the torsion spring 35, thereby accurately fixing the extension length of the primary jacket 20 and avoiding inaccurate detection caused by displacement during the detection process. This design not only ensures the adaptability and stability of the detection fixture 2 in various membrane component detections, but also greatly improves the convenience of operation and the accuracy of detection, meets the detection requirements of membrane components of different sizes, and improves detection efficiency and user experience.

[0067] In a further preferred embodiment of the present invention, as shown in the attached Fig.13 As shown, the fixing pin 34 is hemispherical. When the worker rotates the first-level jacket 20, the fixing pin 34 is disengaged from the positioning slot 27 and is squeezed by the inner wall of the detection fixture 2 and received in the second installation slot 31. At this time, the first-level jacket 20 can be pushed and pulled to continue to adjust the extension length of the first-level jacket 20.

[0068] In this embodiment, the fixing pin 34 is hemispherical in design, which plays a key role when the worker rotates the primary jacket 20. When the extension length of the primary jacket 20 needs to be adjusted, the hemispherical fixing pin 34 can smoothly disengage from the positioning slot 27 under the action of the rotation force. At the same time, under the pressure of the inner wall of the detection fixture 2, the fixing pin 34 will be stored in the second installation slot 31. At this time, the worker can easily push and pull the primary jacket 20 to adjust its extension length.

[0069] In a further preferred embodiment of the present invention, as shown in the attached Figure 18-19 As shown, a secondary jacket 200 is also arranged inside the primary jacket 20, and the same positioning mechanism is also arranged between the secondary jacket 200 and the primary jacket 20 to position them. In this way, multiple jackets can be arranged to meet the detection needs of central tubes 1 of different lengths, and the side cover 3 is finally installed at one end of the innermost jacket.

[0070] In this embodiment, a secondary jacket 200 is added inside the primary jacket 20 to form a multi-stage telescopic structure, and a positioning mechanism is also arranged between the secondary jacket 200 and the primary jacket 20 to ensure that each jacket can be firmly positioned after being adjusted to a desired position. Through this design, multiple jackets can be arranged in this way, achieving full coverage of the detection fixture 2 for the detection requirements of central tubes 1 of different lengths, greatly expanding the application range and adaptability of the detection device.

[0071] In another embodiment of the present invention, as shown in the attached Figure 20-21 As shown, the side cover 3 is also provided with a handle 5 for carrying the device, the handle 5 is U-shaped, and L-shaped connecting blocks 6 are connected at both ends. Two fixing mechanisms are provided on the side cover 3 for installing two L-shaped connecting blocks 6, and the fixing mechanisms include: a fixing frame 41 fixedly installed on one side of the side cover 3; a pull rod 42 slidably installed on the inner wall of the sliding hole opened on the fixing frame 41; a pin 43 fixedly installed at one end of the pull rod 42, and the pin 43 passes through the pin hole opened on the L-shaped connecting block 6; a second spring 44 slidably sleeved on the pull rod 42, for pushing the pin 43 into the pin hole on the L-shaped connecting block 6 through elastic force.

[0072] In this embodiment, a handle 5 is provided on the side cover 3 for carrying the device, which improves the convenience of operation. The handle 5 adopts a U-shaped design and is made of a plastic material, which can be bent under the action of an external force, so as to facilitate the installation of an L-shaped connecting block 6 on the side cover 3;

[0073] L-shaped connecting blocks 6 are connected to both ends of the handle 5 to facilitate installation of the handle 5. Two fixing mechanisms are provided on the side cover 3 for installing the two L-shaped connecting blocks 6 to ensure that the connection between the handle 5 and the side cover 3 is firm and reliable. The fixing mechanism includes a fixing frame 41 and a pull rod 42, on which a pin 43 is slidably installed. The pin 43 can be automatically pinned into the pin hole on the L-shaped connecting block 6 by the elastic force of the second spring 44. Such a design ensures the safety and comfort of the handle during the lifting process. Through the optimization of these structures, the device of the present invention is more user-friendly and easier to operate when in use, while also improving the overall stability and durability of the device, and facilitating the removal of the handle 5 by the same fixing mechanism.

[0074] The present invention also provides a method for implementing a portable device for rapid detection of membrane module leakage points, the method comprising the steps of:

[0075] S1. Assemble the detection fixture 2: align the boss 21 of the detection fixture 2 with the groove slideway 11 of the center tube 1, insert it into the bottom, and rotate the detection fixture 2 so that the boss 21 of the detection fixture 2 is engaged with the annular groove 12 at the bottom of the center tube 1 to achieve the effect of locking and positioning. The mechanical locking structure of the boss 21 and the annular groove 12 is used to achieve limited fixing;

[0076] S2, disassembling the detection fixture 2: referring to S1, reversely rotate the detection fixture 2 so that the boss 21 is aligned with the groove slideway 11, so that the boss 21 is separated from the annular groove 12, and then the detection fixture 2 is completely pulled out to complete the rapid disassembly of the detection fixture 2;

[0077] S3. Adjustment of the locking mechanism: When the locking mechanism is provided, when installing the detection fixture 2, after the boss 21 slides into the annular groove 12 through the groove slideway 11, the detection fixture 2 is rotated to make the boss 21 disengage from the groove slideway 11 and enter a section of the annular groove 12 where the foolproof tooth groove 13 is not provided, and then the detection fixture 2 is pulled again to make the boss 21 close to the inner wall of the annular groove 12 away from the foolproof tooth groove 13, and then the detection fixture 2 is continued to be rotated, and then the detection fixture 2 is pushed to make the teeth 25 on the boss 21 close to the foolproof tooth groove 13 and mesh with it. Under the elastic force of the first spring 24, the teeth 25 on the boss 21 are always meshed with the foolproof tooth groove 13, thereby preventing the detection fixture 2 from being rotated and disengaging from the annular groove 12 and then sliding into the groove slideway 11; when disassembling, the reverse operation can be performed;

[0078] S4. Installation and adjustment of the first-level jacket 20:

[0079] According to the length of the central tube 1 of the membrane assembly to be tested, the primary jacket 20 is adjusted and installed. After adjusting the extended length of the primary jacket 20, the primary jacket 20 is rotated so that the fixing pin 34 of the positioning mechanism enters the positioning slot 27 from the entry slot 26 to achieve fixation; the primary jacket 20 is rotated in the opposite direction so that the fixing pin 34 is separated from the positioning slot 27 and enters the slot 26, and then the primary jacket 20 is pushed and pulled to adjust the length. During the adjustment process, the fixing pin 34 is squeezed and received in the second installation slot 31 by the inner wall of the detection fixture 2;

[0080] S5. Setting of multi-stage jackets: Install the secondary jacket 200 in the primary jacket 20, set a positioning mechanism to ensure stability, and so on, set multi-stage jackets to meet the detection requirements of central tubes 1 of different lengths.

[0081] S6. Assembly of the side cover 3 and the handle 5:

[0082] Install the handle 5: Install the L-shaped connecting block 6 of the U-shaped handle 5 on the side cover 3 through the fixing mechanism to ensure a stable connection;

[0083] Operation of the fixing mechanism: the pin 43 on the pull rod 42 is inserted into the pin hole of the L-shaped connecting block 6, and the second spring 44 provides elastic fixation. When the handle 5 needs to be removed, the pull rod 42 is pulled to disengage the pin 43 from the pin hole on the L-shaped connecting block 6, and the L-shaped connecting block 6 can be pulled out to separate it from the side cover 3, thereby realizing the rapid disassembly and installation of the handle 5.

[0084] In summary, compared with the related art, the device and method of the present invention provide higher portability, simplicity and efficiency in on-site membrane module integrity detection, while ensuring the safety of operation and meeting the actual needs of membrane engineering sites.

[0085] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0086] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A portable device for rapid detection of membrane module leakage, characterized in that: include: A detection fixture (2) arranged in a central tube (1) of an ultrafiltration membrane, wherein the detection fixture (2) is a tubular structure and has two symmetrical bosses (21) arranged on an outer wall at one end; Two symmetrical groove slideways (11) are arranged on the inner wall of the central tube (1), and an annular groove (12) is arranged near the end of the inner wall. The two bosses (21) are adapted to the two groove slideways (11) and slide from the groove slideways (11) into the annular groove (12).

2. The portable device for rapid detection of membrane module leakage as claimed in claim 1, characterized in that: A side cover (3) is installed at one end of the detection fixture (2) located outside the central tube (1), and a detection air inlet (4) is provided on the side cover (3). Gas is filled through the detection air inlet (4) to perform airtightness detection.

3. The portable device for rapid detection of membrane module leakage as claimed in claim 2, characterized in that: The two bosses (21) are provided with teeth (25), and the inner wall of the annular groove (12) is provided with two interval-arranged anti-fool tooth grooves (13) for engaging with the teeth (25) to lock the two bosses (21). The detection fixture (2) is provided with two symmetrical locking mechanisms for providing thrust to enable the teeth on the boss (21) to engage with the anti-fool tooth grooves (13), and also for enabling the teeth (25) to disengage from the anti-fool tooth grooves (13).

4. The portable device for rapid detection of membrane module leakage as claimed in claim 3, characterized in that: The locking mechanism comprises: A first mounting groove (22) arranged on the outer wall of the detection fixture (2); A fixing rod (23) fixedly mounted on the inner walls of both sides of the first mounting groove (22), the fixing rod (23) being arranged parallel to the detection fixture (2), and the boss (21) being slidably sleeved on the fixing rod (23) and slidably connected to the inner wall of the first mounting groove (22); A first spring (24) is slidably sleeved on the fixed rod (23) and is used to provide elastic force to make the teeth (25) on the boss (21) contact and mesh with the foolproof tooth groove (13).

5. The portable device for rapid detection of membrane module leakage as claimed in claim 4, characterized in that: The detection fixture (2) is also provided with a primary jacket (20) for extending the overall length of the detection fixture (2) assembly according to the length requirement of the central tube (1) of the membrane assembly to be detected. The primary jacket (20) is slidably mounted on the inner wall of the detection fixture (2), and a plurality of symmetrical positioning mechanisms are provided on the primary jacket (20) for fixing the primary jacket (20) after adjusting the extended length of the primary jacket (20).

6. The portable device for rapid detection of membrane module leakage as claimed in claim 5, characterized in that: The positioning mechanism comprises: A second mounting groove (31) is formed on the outer wall of the primary jacket (20); A fixed shaft (32) fixedly mounted on the inner walls of both sides of the second mounting groove (31), wherein the fixed shaft (32) is arranged parallel to the primary jacket (20); A connecting piece (33) is rotatably sleeved on the fixed shaft (32), wherein a fixing pin (34) is fixedly mounted on one side of the connecting piece (33); a torsion spring (35) movably sleeved on the fixed shaft (32), one end of the torsion spring (35) being inserted into a limiting hole (36) provided on the connecting piece (33); Wherein, two rows of symmetrically arranged entry slots (26) and two rows of positioning slots (27) are provided on the inner wall of the detection fixture (2), and the fixing pin (34) is inserted from the entry slot (26) into the positioning slot (27) under the torsion force of the torsion spring (35).

7. The portable device for rapid detection of membrane module leakage as claimed in claim 6, characterized in that: The fixing pin (34) is hemispherical. When a worker rotates the primary clamp (20), the fixing pin (34) is disengaged from the positioning slot (27) and is squeezed down by the inner wall of the detection fixture (2) and received in the second installation slot (31).

8. The portable device for rapid detection of membrane module leakage as claimed in claim 7, characterized in that: A secondary jacket (200) is also arranged inside the primary jacket (20), and a similar positioning mechanism is also arranged between the secondary jacket (200) and the primary jacket (20) to position them. In this way, multiple jackets can be arranged to meet the detection requirements of central tubes (1) of different lengths, and the side cover (3) is finally installed at one end of the innermost jacket.

9. A method for implementing a portable device for rapid detection of membrane module leakage, characterized in that: The method comprises the steps of: S1. Assembling the detection fixture (2): aligning the boss (21) of the detection fixture (2) with the groove slideway (11) of the center tube (1), inserting the detection fixture (2) into the bottom, and rotating the detection fixture (2) so that the boss (21) of the detection fixture (2) engages with the annular groove (12) at the bottom of the center tube (1) to achieve locking and positioning, and limiting and fixing is achieved through the mechanical locking structure of the boss (21) and the annular groove (12); S2, disassembling the detection fixture (2): in accordance with S1, rotate the detection fixture (2) in the reverse direction so that the boss (21) is aligned with the groove slideway (11), the boss (21) is separated from the annular groove (12), and then the detection fixture (2) is completely pulled out to complete the rapid disassembly of the detection fixture (2); S3. Adjustment of the locking mechanism: When the locking mechanism is provided, when the detection fixture (2) is installed, after the boss (21) slides into the annular groove (12) through the groove slideway (11), the detection fixture (2) is rotated to make the boss (21) disengage from the groove slideway (11) and enter a section of the annular groove (12) where the foolproof tooth groove (13) is not provided, and then the detection fixture (2) is pulled to make the boss (21) close to the annular groove (12) and away from the foolproof tooth groove (13). The inner wall of one side of the groove (13) is rotated, and the detection fixture (2) is further rotated, and the detection fixture (2) is pushed to make the teeth (25) on the boss (21) close to the foolproof tooth groove (13) and mesh with it. Under the elastic force of the first spring (24), the teeth (25) on the boss (21) are always meshed with the foolproof tooth groove (13), thereby preventing the detection fixture (2) from being rotated and disengaging from the annular groove (12) and then sliding into the groove slideway (11); when disassembling, the operation can be reversed; S4. Installation and adjustment of the first-stage jacket (20): According to the length of the central tube (1) of the membrane assembly to be tested, the primary jacket (20) is adjusted and installed. After adjusting the extended length of the primary jacket (20), the primary jacket (20) is rotated so that the fixing pin (34) of the positioning mechanism enters the slide groove (26) and is inserted into the positioning groove (27) to achieve fixation; the primary jacket (20) is rotated in the opposite direction so that the fixing pin (34) is separated from the positioning groove (27) and enters the slide groove (26), and then the primary jacket (20) is pushed and pulled to adjust the length. During the adjustment process, the fixing pin (34) is squeezed by the inner wall of the detection fixture (2) and is received in the second installation groove (31); S5. Setting of a multi-stage jacket: installing a secondary jacket (200) in a primary jacket (20), setting a positioning mechanism to ensure stability, and so on, setting a multi-stage jacket to meet the detection requirements of central tubes (1) of different lengths; S6. Assembly of the side cover (3) and the handle (5): Installing the handle (5): installing the L-shaped connecting block (6) of the U-shaped handle (5) on the side cover (3) through a fixing mechanism; Operation of the fixing mechanism: the pin (43) on the pull rod (42) is inserted into the pin hole of the L-shaped connecting block (6), and the second spring (44) provides elastic fixing. When the handle (5) needs to be removed, the pull rod (42) is pulled to disengage the pin (43) from the pin hole on the L-shaped connecting block (6), and the L-shaped connecting block (6) can be pulled out to disengage it from the side cover (3), thereby realizing the rapid disassembly and installation of the handle (5).

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