Membrane filter plate and preparation and detection device thereof

Abstract

The invention relates to a diaphragm filter plate and a preparation and detection device thereof, and relates to the technical field of diaphragm filter plates. Comprising a core plate and two diaphragms symmetrically embedded in the two sides of the core plate, the diaphragm filter plate further relates to a diaphragm filter plate preparation detection device, the diaphragm filter plate preparation detection device comprises a detection platform, a mounting frame and a pressure detection part, the mounting frame is arranged on the detection platform, a clamping part is arranged on the mounting frame, and the pressure detection part for detecting the core plate is arranged at the top of the mounting frame; according to the invention, the following problems in the prior art can be solved: firstly, when a diaphragm filter plate is damaged, the specific damaged position of a template cannot be rapidly and accurately detected in the prior art, secondary treatment is needed, and the detection efficiency and accuracy of the diaphragm plate are influenced; and secondly, the sizes of the diaphragm plates are different, however, in the prior art, the detection of the diaphragm plates is single, and only the diaphragm plates with the single size can be detected, so that the applicability of the whole device is poor.

Description

Technical Field

[0001] The invention relates to the technical field of membrane filter plates, and in particular to a membrane filter plate and a preparation and detection device thereof. Background Art

[0002] The diaphragm filter plate is an important component used in solid-liquid separation equipment and is widely used in coal washing, petroleum, chemical industry and other fields. Its main function is to perform secondary squeezing on the filter cake through the diaphragm, thereby increasing the solid content of the filter cake and reducing the water content.

[0003] The working principle of the diaphragm filter plate is to allow external media (such as water or compressed air) to enter the chamber between the core plate and the diaphragm, causing the diaphragm to swell, thereby compressing and squeezing the filter cake to achieve a better separation effect.

[0004] For example, a Chinese patent with publication number CN218474993U discloses a diaphragm plate detection device, which mainly includes a pressing block, a transparent hose, a lip sealing ring, and a quick connector. The pressing block is arranged at the top center of the upper side of the diaphragm plate, an air source channel is opened in the center, and a pressing vent is opened on the side. The quick connector connects the transparent hose, the pressing vent and the core plate air inlet. Whether the diaphragm plate is damaged can be judged by observing the color of the transparent hose. This is simple and clear, which improves the detection level of diaphragm plate damage, saves labor time, and improves maintenance efficiency.

[0005] However, the above diaphragm plate detection device still has some shortcomings in actual use:

[0006] 1. First, in the above-mentioned prior art, whether the diaphragm plate is damaged can be judged by observing the color of the transparent hose, which can quickly judge whether the diaphragm plate is good or bad. However, when the template is damaged, it is impossible to quickly and accurately observe the specific position of the template where the damage occurs, resulting in the need for secondary processing of the diaphragm plate after detection, affecting the efficiency and accuracy of the diaphragm plate detection.

[0007] 2. Secondly, in the prior art, diaphragm plates are widely used in different industries, but the sizes of diaphragm plates are inconsistent. The prior art has a certain degree of singleness when testing diaphragm plates, and it can only test diaphragm plates of a single size, resulting in poor applicability of the entire device.

[0008] Therefore, based on the above-stated viewpoints, there is still room for improvement in the existing diaphragm plate detection devices. Summary of the invention

[0009] In order to solve the above problems, the present invention provides a membrane filter plate and a preparation and detection device thereof, which adopts the following technical solutions:

[0010] In the first aspect, a diaphragm filter plate comprises a core plate arranged in the middle and two diaphragms symmetrically embedded on both sides of the core plate, a working chamber is formed between the core plate and the two diaphragms, one side of the core plate is provided with a water inlet connected to the working chamber on the core plate, the core plate is also provided with an installation port on the same side of the water inlet, and a pressure detector is installed on the installation port of the core plate by screwing.

[0011] The four corners of the core plate are all penetrated with connecting circular holes.

[0012] The surface of the diaphragm is provided with convex points in a cone shape at equal intervals, and the convex points on the diaphragm are distributed in a circular shape from the inside to the outside, and a plurality of convex blocks are provided among the convex points of the diaphragm, and a plurality of convex points in a circular shape are also provided on the convex blocks at equal intervals.

[0013] In the second aspect, a diaphragm filter plate preparation and detection device is provided. Based on the above-mentioned diaphragm filter plate, the diaphragm filter plate preparation and detection device includes a static detection platform, a mounting frame and a pressure detection part. The mounting frame is arranged on the static detection platform and distributed vertically. The mounting frame is also provided with a clamping component for quickly clamping the core plate. The top of the mounting frame is also provided with a pressure detection part for detecting the clamped core plate.

[0014] The clamping component includes four groups of clamping columns distributed in a rectangular shape, and the clamping columns are hollow structures. The four groups of clamping columns are penetrated by trapezoidal clamping blocks at equal intervals along the length direction, and the clamping columns are provided with through clamping grooves for the trapezoidal clamping blocks to slide, and the trapezoidal clamping blocks are respectively connected to the inner walls of the clamping columns with linkage compression springs.

[0015] A linkage ring is also slidably mounted on the outer surface of the clamping column, a reset compression spring is arranged between the linkage ring and the clamping column, and the reset compression spring is sleeved on the clamping column.

[0016] Preferably, the end of the trapezoidal block away from the linkage ring is a slope structure.

[0017] Preferably, the mounting frame is also integrally connected to a mounting plate, the mounting plate is symmetrically slidably provided with connecting plates in the horizontal direction, connecting rods are installed at the ends of the two connecting plates facing away from each other, and the two connecting rods are vertically distributed, telescopic rods are slidably provided on both sides of the length direction of the two connecting rods, and the ends of the telescopic rods away from the connecting rods are connected to the clamping columns.

[0018] Preferably, an unlocking component is also provided between the clamping column and the trapezoidal clamping block, and the unlocking component includes an unlocking strip which is slidably arranged inside the clamping column along the length direction of the clamping column, and guide plates are symmetrically provided on both sides of the unlocking strip in the height direction, and unlocking guide grooves corresponding to the trapezoidal clamping blocks are evenly spaced on the guide plates, and unlocking columns are abutted in the unlocking guide grooves of the guide plates, and the unlocking columns are respectively arranged on the trapezoidal clamping blocks.

[0019] Preferably, an adjusting gear is rotatably arranged in the middle of the connecting rod, and adjusting rods slidably arranged on the outer wall of the connecting rod are meshed on both sides of the adjusting gear, and the adjusting rods are respectively connected to the telescopic rods on both sides of the connecting rod.

[0020] Preferably, a moving block is slidably connected to the mounting plate, moving rods are respectively connected between the two connecting plates on both sides of the moving block, an adjusting threaded rod is rotatably mounted on the mounting plate through a bearing, and the moving block is screwed on the adjusting threaded rod.

[0021] Preferably, the pressure detection unit includes a water pump arranged on the mounting frame, the water pump is connected to a water outlet valve connected to the water inlet on the core plate through a pipeline, and the water outlet valve is movably screwed to the mounting port on the core plate.

[0022] Preferably, the pressure detection unit also includes a winding roller and a release roller which are symmetrically rotated along the length of the detection platform through a torsion spring, a color-changing paper roll which changes color when in contact with water is sleeved between the winding roller and the release roller, and the color-changing paper roll is arranged on the upper surface of the detection platform.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The present application can conveniently and efficiently clamp the membrane filter plate through the clamping components, ensuring the convenience of installation when the membrane filter plate is tested. Furthermore, the clamping components can also clamp membrane filter plates of different sizes, greatly improving the adaptability of the membrane filter plate preparation and testing device.

[0025] Second, the present invention can clamp membrane filter plates of different sizes, greatly improving the applicability of the membrane filter plate detection device.

[0026] 3. The present invention can realize automatic replacement of color-changing roll paper during the process of installing the membrane filter plate for detection, realize the linkage between the replacement of color-changing roll paper and the installation and removal of the membrane filter plate, and can effectively realize the automation of the detection of the membrane filter plate, thereby improving the efficiency and convenience of the membrane filter plate detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1It is a schematic diagram of the overall structure of the membrane filter plate and the membrane filter plate preparation and detection device of the present invention.

[0029] Figure 2 It is a schematic structural diagram of the membrane filter plate of the present invention.

[0030] Figure 3 It is a schematic diagram of the main structure of the membrane filter plate preparation and detection device of the present invention.

[0031] Figure 4 It is a schematic structural diagram of the clamping component of the present invention from a first viewing angle.

[0032] Figure 5 It is a schematic structural diagram of the clamping component of the present invention from a second viewing angle.

[0033] Figure 6 It is a schematic diagram of the structure between the clamping component and the unlocking assembly of the present invention.

[0034] Figure 7 It is an exploded view of the structure between the clamping component and the unlocking assembly of the present invention.

[0035] Figure 8 It is a schematic structural diagram of the pressure detection unit of the present invention from a first viewing angle.

[0036] Fig. 9 It is a schematic structural diagram of the pressure detection unit from a second viewing angle of the present invention.

[0037] Fig.10 It is a schematic diagram of the first viewing angle structure of the clamping column of the present invention for position adjustment.

[0038] Fig.11 It is a second viewing angle structural schematic diagram of the clamping column of the present invention for position adjustment.

[0039] Fig.12 It is a schematic structural diagram of the linkage component of the present invention from a first perspective.

[0040] Fig.13 It is a schematic structural diagram of the linkage component of the present invention from a second viewing angle.

[0041] Description of reference numerals: 1, core plate; 2, diaphragm; 10, water inlet; 11, mounting port; 3, pressure detector; 14, connecting round hole; 20, bump; 21, convex block; 40, detection platform; 41, mounting frame; 42, clamping component; 43, pressure detection part; 420, clamping column; 421, trapezoidal clamping block; 422, through card slot; 423, linkage compression spring; 424, linkage ring; 429, reset compression spring; 425, mounting plate; 426, connecting plate; 427, connecting rod; 428, telescopic rod; 5, unlocking component; 50, unlocking strip; 51, guiding plate; 53, unlocking guiding slot; 54, unlocking column; 60, adjusting gear; 61, adjusting rod; 62, moving block; 63, moving rod; 64, adjusting threaded rod; 430, water pump; 431, pipeline; 432, water outlet valve; 70, winding roller; 71, releasing roller; 72, color-changing roll paper; 8, linkage part; 80, C-shaped rod; 81, first bevel gear; 82, second bevel gear; 83, linkage gear; 84, U-shaped frame; 85, reciprocating spring; 86, linkage block; 87, pressing block; 88, upward moving block; 89, fixing plate; 90, linkage column; 91, U-shaped card slot. Detailed implementation mode

[0042] The following is a further detailed description of this application in conjunction with the attached Figure 1-Figure 13 drawings.

[0043] The embodiment of this application discloses a diaphragm filter plate and its preparation and detection device; it is mainly applied in the process of preparing and processing diaphragm filter plates.

[0044] First of all, the above-mentioned prior art can quickly judge the quality of the diaphragm plate. However, when the template is damaged, it cannot quickly and accurately observe which specific position of the diaphragm filter plate is damaged, resulting in the need for secondary processing after the diaphragm filter plate is detected, affecting the detection efficiency and accuracy of the diaphragm filter plate.

[0045] Secondly, in the prior art, diaphragm filter plates are widely used in different industries, but the sizes of diaphragm filter plates are inconsistent. The prior art has a certain degree of singularity when detecting diaphragm filter plates, and it can only detect diaphragm filter plates of a single size, resulting in poor applicability of the entire device.

[0046] Embodiment 1:

[0047] This application proposes a diaphragm filter plate, which can monitor the internal pressure in real time during the operation of the diaphragm filter plate, ensuring the stability of the diaphragm filter plate during operation. Moreover, the surface of the diaphragm 2 on the diaphragm filter plate is in a specific uneven shape, which can effectively improve its filtration speed and effectively reduce its wear.

[0048] Refer to Figure 1 and Figure 2As shown, a diaphragm filter plate includes a core plate 1 arranged in the middle and two diaphragms 2 symmetrically embedded on both sides of the core plate 1, a working chamber is formed between the core plate 1 and the two diaphragms 2, one side of the core plate 1 is provided with a water inlet 10 connected to the working chamber on the core plate 1, the core plate 1 is also provided with a mounting port 11 on the same side of the water inlet 10, and a pressure detector 3 is installed on the mounting port 11 of the core plate 1 by screwing.

[0049] Firstly, the membrane filter plate is composed of a core plate 1 and a diaphragm 2. The diaphragm 2 is connected to the core plate 1 by glue, and the working chamber between the core plate 1 and the diaphragm 2 can be injected with external media, such as liquid.

[0050] The four corners of the core plate 1 are all penetrated by connecting circular holes 14 , the main purpose of which is to achieve the fixation and adjustment of the position of the core plate 1 .

[0051] Look again Figure 2 As shown, the surface of the diaphragm 2 is provided with convex points 20 distributed in a cone at equal intervals, and the convex points 20 on the diaphragm 2 are distributed in a circular shape from the inside to the outside, and a number of convex blocks 21 are also provided among the convex points 20 of the diaphragm 2, and a number of convex points 20 distributed in a circular shape are also provided on the convex blocks 21 at equal intervals.

[0052] In the present application, a plurality of groups of protrusions 20 distributed in a ring shape are arranged on the surface of the diaphragm 2, and the protrusions 20 are generally in a conical structure, and the diameter of the end of the protrusion 20 away from the diaphragm 2 gradually decreases, thereby ensuring that the squeezed mud cake of the entire diaphragm filter plate can be quickly detached downward due to gravity during the mud discharge process, avoiding the adhesion of mud cake debris at the intersection of the protrusion 20 and the diaphragm 2.

[0053] At the same time, due to its own structure, the protrusion 20 can reduce the flow time of the filtrate in the sludge during the extrusion process, thereby greatly improving the filtration speed. At the same time, the protrusion 20 has an overall conical structure, which can effectively reduce wear and tear and ensure the service life of the entire diaphragm 2.

[0054] Embodiment 2:

[0055] The present application proposes a membrane filter plate preparation detection device, which is a detection device for detecting the performance and sealing of the membrane filter plate during the preparation process of the above-mentioned membrane filter plate. Specifically.

[0056] See also Figure 1 and Figure 3As shown, it is a schematic diagram of the main structure of the diaphragm filter plate for sealing detection; the diaphragm filter plate preparation detection device includes a stationary detection platform 40, a mounting frame 41 and a pressure detection part 43, the mounting frame 41 is arranged on the stationary detection platform 40 and is vertically distributed, and the mounting frame 41 is also provided with a clamping component 42 for quickly clamping the core plate 1, and the top of the mounting frame 41 is also provided with a pressure detection part 43 for detecting the clamped core plate 1.

[0057] First, the clamping component 42 in the present application can allow the diaphragm filter plate to be quickly installed on the clamping column 420, ensuring the stability and flatness of the installation of the diaphragm filter plate. After the diaphragm filter plate is clamped and fixed, the diaphragm filter plate is filled with colored liquid through the pressure detection part 43. When the liquid is filled into the working chamber of the diaphragm filter plate, the diaphragm 2 of the diaphragm filter plate will gradually protrude outward. At this time, the diaphragm 2 will be gradually deformed by the water pressure. Under a certain water pressure, let it stand for ten to thirty minutes, observe the tension of the diaphragm 2 and the specific condition of the diaphragm 2, and at the same time judge the sealing of the connection between the core plate 1 and the diaphragm 2 of the diaphragm filter plate.

[0058] See also Figure 4 , Figure 5 and Figure 6 As shown, it is a structural schematic diagram of the clamping installation of the diaphragm filter plate in this application, which is specifically shown as follows.

[0059] The clamping component 42 includes four groups of clamping columns 420 distributed in a rectangular shape, and the clamping columns 420 are hollow structures. The four groups of clamping columns 420 are penetrated by trapezoidal clamping blocks 421 at equal intervals along the length direction, and the clamping columns 420 are provided with penetrating clamping grooves 422 for the trapezoidal clamping blocks 421 to slide. The trapezoidal clamping blocks 421 and the inner walls of the clamping columns 420 are respectively connected with linkage compression springs 423; a linkage ring 424 is also slidably installed on the outer surface of the clamping column 420, and a reset compression spring 429 is arranged between the linkage ring 424 and the clamping column 420, and the reset compression spring 429 is sleeved on the clamping column 420.

[0060] It should be noted that the four groups of clamping posts 420 are all distributed horizontally, and the four groups of clamping posts 420 correspond to the four connecting circular holes 14 of the membrane filter plate respectively.

[0061] Secondly, one end of the trapezoidal block 421 close to the linkage ring 424 is a right-angle structure, and one end of the trapezoidal block 421 away from the linkage ring 424 is an inclined structure.

[0062] During the specific implementation process, the four connecting circular holes 14 of the core plate 1 are aligned with the four groups of clamping columns 420, so that the core plate 1 is plugged into the clamping columns 420. At this time, the core plate 1 will abut against the linkage ring 424 of the clamping column 420, and then pressure is applied in the direction of the linkage ring 424, so that the reset compression spring 429 on the linkage ring 424 is gradually compressed. At the same time, the core plate 1 moves along the clamping column 420. During this process, the core plate 1 squeezes the inclined surface of the trapezoidal block 421 on the clamping column 420, so that the trapezoidal block 421 can be extended and retracted under external force. After the reset compression spring 429 is compressed to the minimum limit state, the core plate 1 cannot move. At this time, the trapezoidal block 421 abuts against the core plate 1, so that the core plate 1 is clamped and limited by the trapezoidal block 421 and the linkage ring 424.

[0063] It should be noted that each clamping column 420 is provided with a trapezoidal clamping block 421. When the core plate 1 is clamped, the trapezoidal clamping block 421 cooperates with the linkage compression spring 423 to ensure that the trapezoidal clamping block 421 is extended and retracted along the through-slot 422 on the clamping column 420.

[0064] The present application can conveniently and efficiently clamp the membrane filter plate through the clamping component 42, ensuring the convenience of installation when the membrane filter plate is tested. Furthermore, the clamping component 42 can also clamp membrane filter plates of different sizes, greatly improving the adaptability of the membrane filter plate preparation and testing device.

[0065] In the above, the installation work of the membrane filter plate before testing is mainly described. However, when the membrane filter plate needs to be removed from the clamping column 420, it can be quickly removed by the unlocking component 5, as shown below.

[0066] See also Figure 5 , Figure 6 and Figure 7 As shown, specifically, an unlocking component 5 is further provided between the clamping column 420 and the trapezoidal clamping block 421, and the unlocking component 5 includes an unlocking bar 50 slidably arranged inside the clamping column 420 along the length direction of the clamping column 420, and guide plates 51 are symmetrically provided on both sides of the unlocking bar 50 in the height direction, and unlocking guide grooves 53 corresponding to the trapezoidal clamping block 421 are opened at equal intervals on the guide plate 51, and unlocking columns 54 are abutted in the unlocking guide grooves 53 of the guide plate 51, and the unlocking columns 54 are respectively arranged on the trapezoidal clamping block 421.

[0067] It should be noted that the unlocking guide groove 53 is an inverted “V”-shaped structure. In the initial state, the unlocking post 54 abuts against the corner of the unlocking guide groove 53 .

[0068] During the specific implementation, when the membrane filter plate needs to be removed from the clamping column 420, the unlocking strip 50 is pressed, and the unlocking strip 50 moves along the clamping column 420 toward the inside of the clamping column 420. During this process, the unlocking column 54 is forced to move obliquely downward along the unlocking guide groove 53, and then the unlocking column 54 drives the trapezoidal block 421 to move along the through-slot 422 of the clamping column 420 toward the inside of the clamping column 420 until the trapezoidal block 421 retracts into the inside of the clamping column 420. At this time, the return spring 429 on the back side of the linkage ring 424 is gradually released from the state of extreme compression, and the elastic force of the return spring 429 pushes the core plate 1 on the clamping column 420 to move outward through the linkage ring 424 until the core plate 1 moves to the outer edge of the clamping column 420, and finally the core plate 1 can be taken out.

[0069] After the membrane filter plate is fixed, it can be tested by injecting external medium, such as water, into the working chamber of the membrane filter plate through the pressure detection unit 43 to make the membrane 2 of the membrane filter plate swell. After the membrane filter plate swells to a certain extent, stop injecting external medium into the working chamber of the membrane filter plate and keep it for ten to thirty minutes. If the membrane 2 of the membrane filter plate is not broken, or there is leakage on the surface of the membrane 2 of the membrane filter plate, it means that the tested membrane filter plate is unqualified and has broken and leaked.

[0070] Reference Figure 8 and Fig. 9 As shown, specifically, the pressure detection unit 43 includes a water pump 430 disposed on the mounting frame 41 , and the water pump 430 is connected to a water outlet valve 432 connected to the water inlet 10 on the core plate 1 through a pipeline 431 .

[0071] The pressure detection unit 43 also includes a winding roller 70 and a release roller 71 which are symmetrically mounted in the length direction of the detection platform 40 through a torsion spring. A color-changing paper roll 72 that changes color when in contact with water is sleeved between the winding roller 70 and the release roller 71, and the color-changing paper roll 72 is arranged on the upper surface of the detection platform 40.

[0072] It should be noted that the torsion spring reel 70 and the release roller 71 can have a certain elastic force, and when the release tube 71 releases the color-changing paper roll 72 , the reel tube 70 can automatically reel in the used color-changing paper roll 72 .

[0073] First, the water pump 430 is started, and the water pump 430 transports the external medium from the water outlet valve 432 along the pipeline 431 to the working chamber of the core plate 1, and maintains it for ten to thirty minutes. If the membrane 2 of the diaphragm filter plate is not broken, or there is leakage on the surface of the membrane 2 of the diaphragm filter plate, it means that the tested diaphragm filter plate is unqualified and has broken or leaked.

[0074] However, if the leakage is small, it cannot be observed with the naked eye. In this case, a color-changing paper roll 72 is provided directly below the diaphragm filter plate. When the middle of the diaphragm 2 or the connection between it and the core plate 1 is damaged, the external medium in the working chamber will drip onto the color-changing paper roll 72. The color-changing paper roll 72 will immediately show a bright color after encountering water, which is convenient for observation, thereby preventing personnel from failing to observe some smaller leakages. Liquid is injected into the diaphragm filter plate and maintained for a certain period of time to ensure that if a small leakage occurs, the leaked liquid has enough time to drip onto the color-changing paper roll 72.

[0075] Embodiment 3: In the prior art, when the membrane filter plate is tested, it has a certain degree of uniformity and cannot clamp membrane filter plates of different sizes. Therefore, the present application proposes an adjustment rod 61 and an adjustment gear 60 to clamp and limit the membrane filter plates of different sizes.

[0076] Reference Fig.10 and Fig.11 As shown, specifically, an adjusting gear 60 is rotatably arranged in the middle of the connecting rod 427 , and adjusting rods 61 slidably arranged on the outer wall of the connecting rod 427 are meshed on both sides of the adjusting gear 60 , and the adjusting rods 61 are respectively connected to the telescopic rods 428 on both sides of the connecting rod 427 .

[0077] A moving block 62 is slidably connected to the mounting plate 425 , and moving rods 63 are respectively connected between the two connecting plates 426 on both sides of the moving block 62 . An adjusting threaded rod 64 is rotatably mounted on the mounting plate 425 through a bearing, and the moving block 62 is screwed onto the adjusting threaded rod 64 .

[0078] During the specific implementation process, the adjusting gear 60 is first rotated, and the adjusting gear 60 controls the telescopic rods 428 at the upper and lower ends of the connecting rod 427 and the clamping column 420 to synchronously retract and retract relative to each other through the adjusting rods 61 on both sides, thereby adjusting the width direction of the clamping column 420.

[0079] By rotating the adjusting threaded rod 64, the moving block 62 on the adjusting threaded rod 64 moves. At this time, the moving block 62 can control the relative movement of the two connecting plates 426 installed through the moving rod 63, and the connecting rod 427 is connected to the connecting plate 426. The two ends of the connecting rod 427 are provided with clamping columns 420, so the clamping columns 420 can be controlled to be adjusted in the length direction. When it is necessary to detect membrane filter plates of different sizes, the position of the clamping columns 420 can be adjusted by directly rotating the adjusting gear 60 and the adjusting threaded rod 64.

[0080] Example 4: Reference Fig. 9 , Fig.12 and Fig.13As shown, on the basis of Example 2, in order to further improve the efficiency of membrane filter plate detection, the present application also proposes a linkage member 8, through which the color-changing paper roll 72 can be automatically switched during the process of installing and removing the membrane filter plate. When a new membrane filter plate to be detected is installed after the detected membrane filter plate is removed, the color-changing paper roll 72 can automatically rotate during its installation, and automatically cover the color-changing paper roll 72 used for the detected membrane filter plate, so that the new color-changing paper roll 72 is moved to the bottom of the membrane filter plate to be detected, and the color-changing paper roll 72 cannot be replaced manually. The professional operation required for the membrane filter plate detection is greatly reduced, making it simple and efficient, and eliminating the situation where the color-changing paper roll 72 is forgotten to be replaced during the membrane filter plate detection process; specifically.

[0081] A linkage member 8 is also provided between the release roller 71 and the connecting rod 427. The linkage member 8 includes a No. 1 bevel gear 81 connected to the release roller 71, a No. 2 bevel gear 82 is meshed on the No. 1 bevel gear 81, a linkage gear 83 is installed on the No. 2 bevel gear 82, and the No. 1 bevel gear 81, the No. 2 bevel gear 82 and the linkage gear 83 are all arranged in the detection platform 40, and a circular frame 84 is meshed on the outer periphery of the linkage gear 83, and an inner side of the circular frame 84 is movably meshed with the linkage gear 83.

[0082] Reciprocating springs 85 are symmetrically arranged on both sides of the circular frame 85 in the length direction. A linkage block 86 is arranged at one end of the reciprocating spring 85 away from the circular frame 85 . The linkage block 86 is slidably arranged in the detection platform 40 along the height direction of the detection platform 40 .

[0083] The detection platform 40 is provided with a downward pressing block 87 and an upward moving block 88 at two corners of the circular frame 85 , respectively. The downward pressing block 87 and the upward moving block 88 are arranged on the detection platform 40 .

[0084] A fixing plate 89 is further disposed in the detection platform 40 . A circular slot 91 is disposed on the fixing plate 89 . A linkage column 90 abuts against the circular slot 91 . One end of the linkage column 90 away from the circular slot 91 is connected to the circular frame 85 .

[0085] A U-shaped rod 80 is slidably arranged on the circular frame 85, and one end of the U-shaped rod 80 away from the circular frame 85 is slidably penetrated into a connecting rod 427 on one side.

[0086] During the specific implementation process, when installing the diaphragm filter plate, the core plate 1 of the diaphragm filter plate presses against one end of the U-shaped rod 80 located on the connecting rod 427. At this time, the U-shaped rod 80 drives the loop frame 85 to move synchronously. Then, the loop frame 85 drives the meshing linkage gear 83 to rotate. At this time, the linkage gear 83 drives the release roller 71 to rotate through the cooperation of the first bevel gear 81 and the second bevel gear 82. Then, the release roller 71 starts to release a new discoloring roll paper 72, and the used discoloring roll paper 72 is wound by the winding roller 70. And the new discoloring roll paper 72 stops moving after being located directly below the diaphragm filter plate to be detected.

[0087] When the diaphragm filter plate is completed with detection and removed from the clamping post 420, the loop frame 85 moves downward, so that the loop frame 85 is separated from the linkage gear 83 and is in a non-meshing state. Subsequently, under the elastic force of the reciprocating spring 85, it returns to its initial state.

[0088] It should be noted that the loop frame 85 can move up and down along the loop slot 91. When the loop frame 85 is pushed by an external force following the U-shaped rod 80, the loop frame 85 is located in the upper half of the loop slot 91 through the linkage column 90. When the loop frame 85 is moved to the limit, the pressing block 87 presses down on the loop frame 85 through the inclined plane, causing the loop frame 85 to move downward. At the same time, the linkage column 90 on the loop frame 85 moves to the lower half of the loop slot 91. When the external force disappears, the loop frame 85 starts to gradually return to its initial state along the loop slot 91. At this time, the lifting block 88 lifts the loop frame 85, causing it to move upward to ensure that the loop frame 85 meshes with the linkage gear 83 again. Finally, the above operations can be repeated to achieve automatic replacement of the discoloring roll paper 72 each time when detecting the diaphragm filter plate.

[0089] During operation: In the first step, align the four connecting round holes 14 of the core plate 1 with the four groups of clamping posts 420, so that the core plate 1 is inserted onto the clamping posts 420. During this process, the core plate 1 presses against the inclined plane of the trapezoidal clamping block 421 on the clamping post 420, enabling the trapezoidal clamping block 421 to expand and contract under the external force. After the reset compression spring 429 is compressed to the minimum limit state, the core plate 1 cannot move. At this time, the trapezoidal clamping block 421 abuts against the core plate 1, causing the core plate 1 to be clamped and limited by the trapezoidal clamping block 421 and the linkage ring 424.

[0090] In the second step: After the diaphragm filter plate is clamped and limited, connect the water outlet valve 432 to the water inlet 10 on the core plate 1, and inject an external medium into the working chamber of the diaphragm filter plate through the water pump 430, causing the diaphragm 2 of the diaphragm filter plate to expand. After the diaphragm filter plate expands to a certain extent, stop injecting the external medium into the working chamber of the diaphragm filter plate and maintain it for ten to thirty minutes. If the diaphragm 2 of the diaphragm filter plate does not rupture, or there is leakage on the surface of the diaphragm 2 of the diaphragm filter plate, it indicates that the detected diaphragm filter plate is unqualified and has problems such as rupture and leakage.

[0091] Step 3: If the leakage location is small and cannot be observed with the naked eye, a color-changing paper roll 72 is provided directly below the diaphragm filter plate. When the middle of the diaphragm 2 or the connection between it and the core plate 1 is damaged, the external medium in the working chamber will drip onto the color-changing paper roll 72. The color-changing paper roll 72 will immediately show a bright color after encountering water, making it easy to observe.

[0092] Step 4: When testing membrane filter plates of different sizes, rotate the adjusting gear 60 to adjust the width direction of the clamping column 420; rotate the adjusting gear 60 and the adjusting threaded rod 64 to adjust the length direction of the clamping column 420, that is, the position of the clamping column is moved to ensure that the connecting circular holes 114 of membrane filter plates of different sizes always overlap with the clamping column 420.

[0093] Step 5: The linkage part 8 can ensure that the color-changing paper roll 72 is automatically switched during the process of installing and removing the membrane filter plate. When the new membrane filter plate to be tested is installed after the tested membrane filter plate is removed, the color-changing paper roll 72 can automatically rotate during its installation, and automatically cover the color-changing paper roll 72 used for the tested membrane filter plate, so that the new color-changing paper roll 72 is moved to the bottom of the membrane filter plate to be tested. The color-changing paper roll 72 cannot be replaced manually, which greatly reduces the professional operation required for the membrane filter plate detection, making it simple and efficient, and eliminating the situation where the color-changing paper roll 72 is forgotten to be replaced during the membrane filter plate detection process.

[0094] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A membrane filter plate, characterized in that: The invention comprises a core plate (1) arranged in the middle and two diaphragms (2) symmetrically embedded on both sides of the core plate (1); a working chamber is formed between the core plate (1) and the two diaphragms (2); a water inlet (10) connected to the working chamber on the core plate (1) is provided on one side of the core plate (1); a mounting port (11) is also provided on the same side of the water inlet (10); a pressure detector (3) is mounted on the mounting port (11) of the core plate (1) by screw connection; The four corners of the core plate (1) are all provided with connecting circular holes (14); The surface of the diaphragm (2) is provided with convex points (20) distributed in a cone shape at equal intervals, and the convex points (20) on the diaphragm (2) are distributed in a circular shape from the inside to the outside, and a plurality of convex points (20) on the diaphragm (2) are further provided with a plurality of convex blocks (21), and a plurality of convex points (20) distributed in a circular shape are also provided on the convex blocks (21) at equal intervals.

2. A membrane filter plate preparation and detection device, comprising a membrane filter plate according to claim 1, characterized in that: The diaphragm filter plate preparation and detection device comprises a stationary detection platform (40), a mounting frame (41) and a pressure detection unit (43); the mounting frame (41) is arranged on the stationary detection platform (40) and is vertically distributed; the mounting frame (41) is also provided with a clamping component (42) for quickly clamping a core plate (1); and the top of the mounting frame (41) is also provided with a pressure detection unit (43) for detecting the clamped core plate (1).

3. A membrane filter plate preparation and detection device according to claim 2, characterized in that: The clamping component (42) comprises four groups of clamping columns (420) distributed in a rectangular shape, and the clamping columns (420) are hollow structures, and the four groups of clamping columns (420) are penetrated by trapezoidal clamping blocks (421) at equal intervals along the length direction, and the clamping columns (420) are provided with penetrating clamping grooves (422) for the trapezoidal clamping blocks (421) to slide, and the trapezoidal clamping blocks (421) and the inner walls of the clamping columns (420) are respectively connected with linkage compression springs (423); A linkage ring (424) is also slidably mounted on the outer surface of the clamping column (420), a return compression spring (429) is arranged between the linkage ring (424) and the clamping column (420), and the return compression spring (429) is sleeved on the clamping column (420).

4. A membrane filter plate preparation and detection device according to claim 3, characterized in that: One end of the trapezoidal block (421) away from the linkage ring (424) is a slope structure.

5. The membrane filter plate preparation and detection device according to claim 3, characterized in that: The mounting frame (41) is also integrally connected with a mounting plate (425), and the mounting plate (425) is symmetrically slidably provided with a connecting plate (426) in the horizontal direction, and connecting rods (427) are installed at the opposite ends of the two connecting plates (426), and the two connecting rods (427) are vertically distributed, and telescopic rods (428) are slidably provided on both sides of the length direction of the two connecting rods (427), and the ends of the telescopic rods (428) away from the connecting rods (427) are connected to the clamping column (420).

6. A membrane filter plate preparation and detection device according to claim 3, characterized in that: An unlocking assembly (5) is also provided between the clamping column (420) and the trapezoidal clamping block (421), and the unlocking assembly (5) comprises an unlocking bar (50) which is slidably arranged inside the clamping column (420) along the length direction of the clamping column (420), guide plates (51) are symmetrically arranged on both sides of the unlocking bar (50) in the height direction, and unlocking guide grooves (53) corresponding to the trapezoidal clamping blocks (421) are evenly spaced on the guide plates (51), and unlocking columns (54) are abutted in the unlocking guide grooves (53) of the guide plates (51), and the unlocking columns (54) are respectively arranged on the trapezoidal clamping blocks (421).

7. A membrane filter plate preparation and detection device according to claim 5, characterized in that: An adjusting gear (60) is rotatably arranged in the middle of the connecting rod (427), and adjusting rods (61) slidably arranged on the outer wall of the connecting rod (427) are meshed on both sides of the adjusting gear (60), and the adjusting rods (61) are respectively connected to the telescopic rods (428) on both sides of the connecting rod (427).

8. A membrane filter plate preparation and detection device according to claim 5, characterized in that: A moving block (62) is slidably connected to the mounting plate (425), and moving rods (63) are respectively connected between the two connecting plates (426) on both sides of the moving block (62). An adjusting threaded rod (64) is rotatably mounted on the mounting plate (425) via a bearing, and the moving block (62) is screwed onto the adjusting threaded rod (64).

9. A membrane filter plate preparation and detection device according to claim 2, characterized in that: The pressure detection unit (43) comprises a water pump (430) arranged on the mounting frame (41); the water pump (430) is connected to a water outlet valve (432) connected to a water inlet (10) on the core plate (1) via a pipeline (431); the water outlet valve (432) is movably screwed to a mounting port (11) on the core plate (1).

10. A membrane filter plate preparation and detection device according to claim 2, characterized in that: The pressure detection unit (43) further comprises a winding roller (70) and a release roller (71) which are symmetrically arranged to rotate in the length direction of the detection platform (40) by means of a torsion spring, and a color-changing paper roll (72) which changes color when in contact with water is sleeved between the winding roller (70) and the release roller (71), and the color-changing paper roll (72) is arranged on the upper surface of the detection platform (40).

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