Gelatin film leakage automatic detection device

Abstract

The utility model discloses a gelatin film leaks automatic detection device, including wastewater treatment tank, membrane module and detection installation support, membrane module detachable and placed in wastewater treatment tank inside one side, and detection installation support detachable and installed in wastewater treatment tank top other side, and the COD sensor fixed mounting of detection installation support top center, and one side of detection installation support top is slidably installed with L type support, and the other end of L type support is lift installation with adjusting screw, and the bottom fixed mounting of adjusting screw has turbine flowmeter. The utility model can adjust the clamping spacing of detection installation support along the width direction of wastewater treatment tank, and can also adjust the horizontal position of turbine flowmeter through T type sliding groove, and can also realize the lift adjustment of turbine flowmeter with the help of adjusting screw and limiting structure, and is suitable for various width, different water outlet height and transverse position wastewater treatment tank on the market, and can greatly reduce the equipment replacement cost of enterprise due to the change of treatment tank specification.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an automatic detection device for gelatin membrane leakage. Background Technology

[0002] In the field of wastewater treatment, gelatin membranes are widely used in wastewater purification in industries such as chemical, printing and dyeing, and pharmaceutical due to their uniform pore size, excellent adsorption performance, and resistance to acid and alkali corrosion. They can effectively remove organic matter, colloidal impurities, and some heavy metal ions from wastewater, ensuring that the treated wastewater meets discharge standards. However, during long-term use, gelatin membranes are prone to damage due to membrane wear, localized aging, or contaminant blockage, leading to leakage. If leakage is not detected in time, unfiltered, high-concentration wastewater can be directly discharged, violating environmental regulations and potentially causing water and soil pollution risks. It also reduces wastewater treatment efficiency and increases subsequent treatment costs for businesses.

[0003] Currently, leakage detection devices for gelatin film wastewater treatment systems generally suffer from two major technical defects, making it difficult to meet the actual needs of industrial wastewater treatment:

[0004] Firstly, the devices lack versatility and have significant limitations in adaptability. Existing gelatin membrane leakage detection devices are mostly custom-designed for specific wastewater treatment tanks, meaning the detection structure is designed for a particular specification. The detection mounting brackets are often welded or snap-fitted to the wastewater treatment tank, making it impossible to adjust the clamping distance according to the tank width. The brackets used to install turbine flow meters are mostly rigid structures, unable to move laterally to accommodate outlets with different lateral positions, nor can they be adjusted in height to accommodate outlets at different heights or different water depths. In actual industrial scenarios, the specifications of wastewater treatment tanks vary significantly among different companies, resulting in a single detection device only being compatible with a single tank specification. When a company changes the tank specification or expands its wastewater treatment categories, it needs to customize the entire detection device, which not only increases equipment procurement costs but also requires downtime to dismantle the old device and install the new one, severely impacting the continuity of wastewater treatment.

[0005] Secondly, the detection methods are limited, resulting in a high false alarm rate and delayed early warning. Current gelatin membrane leakage detection mainly relies on two single methods: one is to use a COD sensor to detect water quality, judging whether there is a leakage by monitoring the COD value of the filtered wastewater. However, during the wastewater treatment process, the organic matter content of the influent may temporarily increase due to fluctuations in the production process, which can easily lead to abnormal COD values ​​and false alarms, resulting in a high false alarm rate. The other method is to use a flow meter to monitor the effluent flow rate and judge leakage by the flow rate fluctuations. However, changes in influent pressure can also cause abnormal flow rates, making it impossible to distinguish between fluctuations in operating conditions and membrane leakage. If leakage is not identified in time, it may lead to the discharge of a large amount of substandard wastewater. In addition, some companies still use manual sampling for detection. Even if leakage is found, several tons to tens of tons of substandard wastewater have already been discharged, making it difficult to avoid environmental risks and economic losses.

[0006] In summary, there is an urgent need for an automated detection device in the field of gelatin film wastewater treatment that is highly versatile, adaptable to various sizes of treatment tanks, and capable of accurately detecting leaks and avoiding misjudgments. This device would address the industry pain points of poor adaptability and low detection accuracy of existing technologies, thereby ensuring wastewater treatment efficiency and environmental compliance. Utility Model Content

[0007] One objective of this invention is to provide an automatic gelatin membrane leakage detection device. This invention can achieve full-scenario adaptation to wastewater treatment tanks of different specifications through a three-layer adaptive adjustment structure. It can adjust the clamping distance of the detection mounting bracket along the width of the wastewater treatment tank, adjust the horizontal position of the turbine flow meter through the T-shaped slide, and adjust the height of the turbine flow meter with the help of the adjusting screw and the limiting structure. It can adapt to wastewater treatment tanks of various widths, different outlet heights and lateral positions on the market without the need for customized modification of the device. This greatly reduces the equipment replacement cost caused by changes in the treatment tank specifications, and avoids the downtime and time-consuming modification caused by insufficient device adaptability, thus ensuring the continuity of wastewater treatment.

[0008] An automatic gelatin membrane leakage detection device according to an embodiment of the present invention includes a wastewater treatment tank, a membrane module, and a detection mounting bracket. The membrane module is detachably installed inside one side of the wastewater treatment tank, and the detection mounting bracket is detachably installed on the other side of the top of the wastewater treatment tank. A COD sensor is fixedly installed in the center of the top of the detection mounting bracket. An L-shaped bracket is slidably installed on one side of the top of the detection mounting bracket, and an adjusting screw is installed at the other end of the L-shaped bracket. A turbine flow meter is fixedly installed at the bottom of the adjusting screw. An inlet and an outlet are respectively provided on both sides of the wastewater treatment tank, and the turbine of the turbine flow meter is inserted into the outlet.

[0009] Furthermore, clamping bolts are screwed into both sides of the detection mounting bracket, and clamping plates that are clamped to the outer walls of both sides of the wastewater treatment tank are movably installed at the inner end of the clamping bolts via a rotating shaft. The detection mounting bracket is clamped and installed on the top of the wastewater treatment tank by the clamping plates.

[0010] Furthermore, a groove is provided on one side of the top of the detection mounting bracket, the bottom slider of the L-shaped bracket is slidably installed in the groove, and a fastening bolt is screwed onto the bottom of the L-shaped bracket and through the groove.

[0011] Furthermore, the L-shaped bracket has a through hole at the top, the adjusting screw passes through the through hole, and an adjusting nut is rotatably installed on the top of the L-shaped bracket and directly above the through hole. The adjusting screw passes through the adjusting nut, and the inner thread of the adjusting nut meshes with the outer thread of the adjusting screw.

[0012] Furthermore, limit blocks are symmetrically arranged on both sides of the inner wall of the perforation, and limit grooves are symmetrically opened on both sides of the outer wall of the adjusting screw, with the limit blocks movably embedded in the limit grooves.

[0013] Furthermore, the bottom probe of the COD sensor penetrates through the detection mounting bracket and extends into the wastewater treatment tank, and the bottom probe of the COD sensor is positioned between the membrane module and the outlet.

[0014] Furthermore, the membrane module is detachably connected to a mounting base on one side of the wastewater treatment tank via bolts. The mounting base is welded and fixed to the inner wall of the wastewater treatment tank, and the filter surface of the membrane module faces the inlet side. A sealing strip is provided between the membrane module and the inner wall of the wastewater treatment tank.

[0015] Furthermore, the COD sensor is fixedly connected to the top center of the detection mounting bracket via a flange. One end of the flange is integrally formed with the housing of the COD sensor, and the other end is symmetrically fastened to the top of the detection mounting bracket by at least two bolts. A rubber sealing gasket is provided between the flange and the detection mounting bracket.

[0016] Furthermore, the clamping plate is a rectangular plate structure, and anti-slip textures are provided on the side of the clamping plate facing the outer wall of the wastewater treatment tank, with the anti-slip textures extending along the length of the clamping plate.

[0017] Furthermore, the slide groove is a T-shaped groove, the slider at the bottom of the L-shaped bracket is a T-shaped slider adapted to the T-shaped groove, and both ends of the slide groove are provided with stops to limit the sliding stroke of the slider.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model achieves full-scenario adaptability through a three-layer adaptive adjustment structure. First, the detection mounting bracket, through a clamping bolt structure, can adjust the clamping distance along the width direction of the wastewater treatment tank to adapt to different tank widths. Second, the L-shaped bracket achieves horizontal sliding through a T-shaped sliding groove and fastening bolts, allowing adjustment of the horizontal coordinates of the turbine flow meter according to the lateral position of the outlet. Third, the adjusting screw achieves lifting and lowering adjustment through an adjusting nut, a limiting block, and a limiting groove structure, adapting to different outlet heights and water depths. Furthermore, the limiting block's anti-rotation design ensures that the turbine remains stably within the water flow channel after adjustment. This allows the device to adapt to various specifications of wastewater treatment tanks on the market without customized modifications, greatly improving versatility and significantly reducing equipment replacement costs for enterprises.

[0020] 2. In this utility model, a COD sensor and a turbine flow meter are combined to form a collaborative detection system. The COD sensor probe is placed between the membrane module and the outlet to preferentially capture minute changes in water quality immediately after filtration. The turbine flow meter ensures that the effective detection part of the turbine is fully embedded in the water flow channel at the outlet through an adjustable structure, accurately capturing flow fluctuations. The data from both corroborate each other, and leakage is only determined when the COD value exceeds the preset threshold and is accompanied by abnormal flow. This completely solves the misjudgment problem of traditional single detection, greatly improves the detection accuracy, and realizes the transformation from passive sampling to active early warning. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of an automatic gelatin film leakage detection device proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the detection and installation bracket structure of an automatic gelatin film leakage detection device proposed in this utility model;

[0024] Figure 3 This is a bottom view of the detection and installation bracket of the automatic detection device for gelatin film leakage proposed in this utility model;

[0025] Figure 4 This is a partially enlarged structural diagram of an automatic gelatin film leakage detection device proposed in this utility model;

[0026] Figure 5 This is a partially enlarged structural diagram of the automatic gelatin film leakage detection device proposed in this utility model.

[0027] In the diagram: 1. Wastewater treatment tank; 2. Membrane module; 3. Inlet; 4. Outlet; 5. Detection and mounting bracket; 6. COD sensor; 7. L-shaped bracket; 8. Adjusting screw; 9. Turbine flow meter; 10. Clamping bolt; 11. Slide groove; 12. Fastening bolt; 13. Clamping plate; 14. Limiting groove; 15. Adjusting nut; 16. Perforation; 17. Limiting block. Detailed Implementation

[0028] To make the technical means and objectives and effects of this utility model easier to understand, the embodiments of this utility model will be described in detail below with reference to specific figures.

[0029] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connections between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Example 1

[0033] like Figure 1-5As shown, this utility model discloses an automatic gelatin membrane leakage detection device, including a wastewater treatment tank 1, a membrane module 2, and a detection mounting bracket 5. The membrane module 2 is detachably installed inside one side of the wastewater treatment tank 1. The detection mounting bracket 5 is detachably installed on the other side of the top of the wastewater treatment tank 1. A COD sensor 6 is fixedly installed in the center of the top of the detection mounting bracket 5. An L-shaped bracket 7 is slidably installed on one side of the top of the detection mounting bracket 5. An adjusting screw 8 is installed at the other end of the L-shaped bracket 7. A turbine flow meter 9 is fixedly installed at the bottom of the adjusting screw 8. An inlet 3 and an outlet 4 are respectively provided on both sides of the wastewater treatment tank 1. The turbine of the turbine flow meter 9 is inserted into the outlet 4, and the effective detection part of the turbine is completely located in the water flow channel of the outlet 4.

[0034] The automatic gelatin membrane leakage detection device disclosed in this application is primarily used for leakage monitoring during the gelatin membrane filtration process of wastewater. Its operation is as follows: The wastewater to be tested enters the wastewater treatment tank 1 through the inlet 3 on one side. It first flows through the membrane module 2 located on one side of the tank, where the membrane module 2 filters the wastewater to remove impurities and colloids. The filtered wastewater continues to flow towards the outlet 4 on the other side of the wastewater treatment tank 1. During this process, the COD sensor 6 on the mounting bracket 5 monitors the water quality in real time. The COD value reflects the organic matter content of the wastewater. If the membrane module 2 leaks, unfiltered wastewater will mix into the filtered water, causing an abnormal increase in the COD value. Simultaneously, the turbine flow meter 9, fixed to the adjusting screw 8 below the L-shaped bracket 7, rotates its turbine due to the impact of the water flow, which can monitor the water flow rate at the outlet 4 in real time. Leakage may be accompanied by abnormal flow fluctuations. When the COD sensor 6 detects that the COD value exceeds a preset threshold, or the turbine flow meter 9 detects an abnormal flow, it can be determined that the membrane module 2 is leaking, thus achieving automatic leakage detection and early warning.

[0035] The automatic gelatin membrane leakage detection device described in this application achieves greater accuracy compared to a single detection method through the coordinated detection of COD sensor 6 and turbine flow meter 9. At the same time, both membrane module 2 and detection mounting bracket 5 adopt a detachable design, which facilitates later maintenance and replacement of parts. This solves the problems of traditional gelatin membrane leakage detection relying on manual sampling, low efficiency, and high false judgment rate, and improves the timeliness and reliability of leakage monitoring in wastewater treatment.

[0036] As a preferred example of this application, the detection mounting bracket 5 has clamping bolts 10 screwed into both sides. The inner ends of the clamping bolts 10 are movably mounted with clamping plates 13 that clamp the outer walls of both sides of the wastewater treatment tank 1 via a rotating shaft. The detection mounting bracket 5 is clamped and installed on the top of the wastewater treatment tank 1 by the clamping plates 13, and the clamping bolts 10 are horizontally arranged along the width direction of the detection mounting bracket 5. When installing the detection mounting bracket 5, the bracket is first placed on top of the wastewater treatment tank 1, and then the clamping bolts 10 on both sides are tightened simultaneously, so that the clamping plates 13 are tightly fitted against the outer wall of the wastewater treatment tank 1, and the bracket is fixed by clamping force. The horizontally arranged clamping bolts 10 ensure that the clamping force acts in the horizontal direction, preventing the detection components from being misaligned due to force displacement of the bracket, thus improving installation stability.

[0037] As a preferred example of this application, the top side of the detection mounting bracket 5 is provided with a groove 11, and the bottom slider of the L-shaped bracket 7 is slidably installed in the groove 11. A fastening bolt 12 is screwed onto the bottom of the L-shaped bracket 7 and through the groove 11. The diameter of the nut of the fastening bolt 12 is larger than the width of the groove 11 to prevent the fastening bolt 12 from coming out of the groove 11. According to the actual position of the outlet 4, the L-shaped bracket 7 can be pushed to slide along the groove 11 to adjust the horizontal position of the turbine flow meter 9, ensuring that the turbine can be accurately inserted into the outlet 4. After the position adjustment is completed, the fastening bolt 12 is tightened, and the L-shaped bracket 7 is locked by the friction between the nut and the top of the bracket. The design that the diameter of the nut is larger than the width of the groove can prevent the fastening bolt 12 from accidentally falling off during the sliding adjustment process, ensuring operational safety.

[0038] As a preferred example of this application, the L-shaped bracket 7 has a through hole 16 at its top, through which the adjusting screw 8 passes. An adjusting nut 15 is rotatably mounted on the top of the L-shaped bracket 7, directly above the through hole 16. The adjusting screw 8 passes through the adjusting nut 15, and the inner thread of the adjusting nut 15 meshes with the outer thread of the adjusting screw 8. The inner diameter of the through hole 16 is larger than the outer diameter of the adjusting screw 8, and the gap between them is no greater than 0.3 mm. When it is necessary to adjust the insertion depth of the turbine flow meter 9, rotating the adjusting nut 15 drives the adjusting screw 8 to move up and down along the through hole 16 using the thread meshing action, thereby causing the turbine flow meter 9 to rise and fall. The gap design of less than 0.3 mm avoids significant shaking of the adjusting screw 8 during rising and falling, ensuring that the turbine can be stably maintained within the water flow channel of the outlet 4, thus improving the flow detection accuracy.

[0039] As a preferred example of this application, limit blocks 17 are symmetrically arranged on both sides of the inner wall of the perforation 16, and limit grooves 14 are symmetrically opened on both sides of the outer wall of the adjusting screw 8. The limit blocks 17 are movably embedded in the limit grooves 14. The limit blocks 17 are elongated, and their length direction is consistent with the axial direction of the adjusting screw 8. The height of the limit blocks 17 is not greater than the depth of the limit grooves 14. During the lifting and lowering of the adjusting screw 8, the limit blocks 17 slide synchronously along the limit grooves 14, which can effectively limit the circumferential rotation of the adjusting screw 8 and prevent the turbine flow meter 9 from shifting due to the rotation of the adjusting nut 15 causing the screw to rotate. The design that the height of the limit blocks 17 is not greater than the depth of the limit grooves 14 can prevent the two from getting stuck and ensure smooth lifting and lowering adjustment.

[0040] As a preferred example of this application, the bottom probe of the COD sensor 6 penetrates through the detection mounting bracket 5 and extends into the wastewater treatment tank 1. The bottom probe of the COD sensor 6 is positioned between the membrane module 2 and the outlet 4, and the depth to which the probe extends into the wastewater treatment tank 1 is not less than half the effective water depth inside the wastewater treatment tank 1. The probe's location between the membrane module 2 and the outlet 4 allows for priority detection of the freshly filtered wastewater, avoiding direct interference from unfiltered wastewater. Furthermore, the design of a probe depth not less than half the effective water depth ensures that the probe is always immersed in the water flow, preventing probe exposure due to water level fluctuations and guaranteeing the continuity and accuracy of COD detection.

[0041] As a preferred example of this application, the membrane module 2 is detachably connected to a mounting base on one side of the wastewater treatment tank 1 via bolts. The mounting base is welded and fixed to the inner wall of the wastewater treatment tank 1, and the filter surface of the membrane module 2 faces the inlet 3. A sealing strip is provided between the membrane module 2 and the inner wall of the wastewater treatment tank 1. The welded and fixed mounting base provides stable support, ensuring that the membrane module 2 does not shift under the impact of water flow; the design of the filter surface facing the inlet 3 allows wastewater to directly impact the filter surface, improving filtration efficiency; and the sealing strip fills the gap between the membrane module 2 and the tank wall, preventing unfiltered wastewater from flowing into the detection area through the gap around the membrane module 2, thus avoiding misjudgment of leakage.

[0042] As a preferred example of this application, the COD sensor 6 is fixedly connected to the top center of the detection mounting bracket 5 via a flange. One end of the flange is integrally formed with the housing of the COD sensor 6, and the other end is symmetrically fastened to the top of the detection mounting bracket 5 by at least two bolts. A rubber sealing gasket is provided between the flange and the detection mounting bracket 5. The integrally formed flange can improve the connection strength between the sensor and the bracket, preventing loosening after long-term use; the design of at least two symmetrical bolts can ensure that the flange is evenly stressed, preventing the sensor from tilting; the rubber sealing gasket can prevent water vapor in the wastewater treatment tank 1 from leaking out through the installation gap, protecting the circuit components of the sensor and extending its service life.

[0043] As a preferred example of this application, the clamping plate 13 has a rectangular plate structure. Anti-slip textures are provided on the side of the clamping plate 13 facing the outer wall of the wastewater treatment tank 1. These anti-slip textures extend along the length of the clamping plate 13. The length of the clamping plate 13 is not less than 1.2 times the length of the corresponding side of the detection mounting bracket 5. The thickness of the clamping plate 13 is 5mm-10mm. The rectangular plate structure increases the contact area between the clamping plate 13 and the tank wall, improving clamping stability. The anti-slip textures increase friction, preventing the bracket from shifting due to vibration. The design of a length not less than 1.2 times the side length of the bracket ensures that the clamping range covers both sides of the bracket, avoiding excessive local stress. The 5mm-10mm thickness ensures the structural strength of the clamping plate 13 while avoiding excessive weight gain that could affect the overall stability of the bracket.

[0044] As a preferred example of this application, the slide groove 11 is a T-shaped groove, and the slider at the bottom of the L-shaped bracket 7 is a T-shaped slider adapted to the T-shaped groove. The length of the slide groove 11 is not less than 1 / 2 of the length of the corresponding side of the top of the detection mounting bracket 5, and both ends of the slide groove 11 are provided with stops to limit the sliding stroke of the slider. The cooperation between the T-shaped groove and the T-shaped slider can prevent the L-shaped bracket 7 from falling off the top of the detection mounting bracket 5, improving the connection reliability; the design that the length of the slide groove 11 is not less than 1 / 2 of the corresponding side provides sufficient adjustment range to adapt to the position of the outlet 4 of wastewater treatment tanks 1 of different sizes; the stops at both ends can prevent the slider from sliding excessively and causing it to disengage from the slide groove 11, simplifying the position control during operation.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic detection device for gelatin film leakage, characterized in that, The device includes a wastewater treatment tank (1), a membrane module (2), and a detection mounting bracket (5). The membrane module (2) is detachably installed inside the wastewater treatment tank (1) on one side. The detection mounting bracket (5) is detachably installed on the top of the wastewater treatment tank (1) on the other side. A COD sensor (6) is fixedly installed at the center of the top of the detection mounting bracket (5). An L-shaped bracket (7) is slidably installed on one side of the top of the detection mounting bracket (5). An adjusting screw (8) is installed at the other end of the L-shaped bracket (7). A turbine flow meter (9) is fixedly installed at the bottom of the adjusting screw (8). An inlet (3) and an outlet (4) are respectively provided on both sides of the wastewater treatment tank (1). The turbine of the turbine flow meter (9) is inserted into the outlet (4).

2. The automatic gelatin film leakage detection device according to claim 1, characterized in that, The detection mounting bracket (5) has clamping bolts (10) screwed into both sides. The inner end of the clamping bolts (10) is movably mounted with clamping plates (13) clamped to the outer walls of both sides of the wastewater treatment tank (1) via a rotating shaft. The detection mounting bracket (5) is clamped and mounted on the top of the wastewater treatment tank (1) by the clamping plates (13).

3. The automatic gelatin film leakage detection device according to claim 1, characterized in that, The top side of the detection mounting bracket (5) is provided with a sliding groove (11), the bottom slider of the L-shaped bracket (7) is slidably installed in the sliding groove (11), and the bottom of the L-shaped bracket (7) is screwed with a fastening bolt (12) through the sliding groove (11).

4. The automatic gelatin film leakage detection device according to claim 1, characterized in that, The L-shaped bracket (7) has a through hole (16) at the top, and the adjusting screw (8) passes through the through hole (16). An adjusting nut (15) is rotatably installed on the top of the L-shaped bracket (7) and directly above the through hole (16). The adjusting screw (8) passes through the adjusting nut (15), and the inner thread of the adjusting nut (15) meshes with the outer thread of the adjusting screw (8).

5. The automatic gelatin film leakage detection device according to claim 4, characterized in that, Limiting blocks (17) are symmetrically arranged on both sides of the inner wall of the perforation (16), and limiting grooves (14) are symmetrically opened on both sides of the outer wall of the adjusting screw (8). The limiting blocks (17) are movably embedded in the limiting grooves (14).

6. The automatic gelatin film leakage detection device according to claim 1, characterized in that, The bottom probe of the COD sensor (6) passes through the detection mounting bracket (5) and extends into the wastewater treatment tank (1). The bottom probe of the COD sensor (6) is located between the membrane module (2) and the outlet (4).

7. The automatic gelatin film leakage detection device according to claim 1, characterized in that, The membrane module (2) is detachably connected to the mounting base on one side of the wastewater treatment tank (1) by bolts. The mounting base is welded and fixed to the inner wall of the wastewater treatment tank (1), and the filter surface of the membrane module (2) faces the inlet (3). A sealing strip is provided between the membrane module (2) and the inner wall of the wastewater treatment tank (1).

8. The automatic gelatin film leakage detection device according to claim 1, characterized in that, The COD sensor (6) is fixedly connected to the top center of the detection mounting bracket (5) via a flange. One end of the flange is integrally formed with the outer shell of the COD sensor (6), and the other end is symmetrically fastened to the top of the detection mounting bracket (5) by at least two bolts. A rubber sealing gasket is provided between the flange and the detection mounting bracket (5).

9. The automatic gelatin film leakage detection device according to claim 2, characterized in that, The clamping plate (13) is a rectangular plate structure. Anti-slip texture is provided on the side of the clamping plate (1) facing the outer wall of the wastewater treatment tank (1). The anti-slip texture extends along the length direction of the clamping plate (13).

10. The automatic gelatin film leakage detection device according to claim 3, characterized in that, The slide groove (11) is a T-shaped groove, and the slider at the bottom of the L-shaped bracket (7) is a T-shaped slider that is adapted to the T-shaped groove. Both ends of the slide groove (11) are provided with stops to limit the sliding stroke of the slider.

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