Reverse osmosis membrane detection device and reverse osmosis membrane detection method

Abstract

The present invention discloses a reverse osmosis membrane detection device and a reverse osmosis membrane detection method. The reverse osmosis membrane detection device includes a left vertical plate, a right vertical plate, a fixed block, a sealing and pressing mechanism, a shifting and flipping mechanism and a supporting cylinder mechanism. The present invention can place reverse osmosis membrane group filter elements of different sizes inside the supporting cylinder mechanism and then position them, and push them to the bottom of the sealing and pressing mechanism through the shifting and flipping mechanism, and then the bottom of the sealing and pressing mechanism is inserted into the inner side of the supporting cylinder mechanism and contacts the top of the reverse osmosis membrane group filter element, and then the external liquid is discharged into the reverse osmosis membrane group filter element and then discharged from the bottom of the supporting cylinder mechanism, and the performance of the reverse osmosis membrane is judged by detecting the discharged liquid, and the adaptive sealing cooperation of the supporting cylinder mechanism and the sealing and pressing mechanism can be used to detect reverse osmosis membrane group filter elements of different sizes, and the shifting and flipping mechanism is used to make the filter element enter and exit the detection station, so that the filter element can be disassembled and replaced, thereby improving the applicability and work efficiency of the detection.

Description

Technical Field

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

[0002] Reverse osmosis membrane is an artificial semipermeable membrane with certain characteristics made by simulating biological semipermeable membrane. It is the core component of reverse osmosis technology. The principle of reverse osmosis technology is to separate substances and water under the action of a pressure higher than the osmotic pressure of the solution, based on the fact that other substances cannot pass through the semipermeable membrane; the pore size of the reverse osmosis membrane is very small, so it can effectively remove dissolved salts, colloids, microorganisms, organic matter, etc. in water.

[0003] At present, Chinese patent application number: CN202210930346.6 discloses a reverse osmosis membrane detection device and a reverse osmosis membrane detection method. The reverse osmosis membrane detection device includes: a membrane element, including a sealing strip, a first reverse osmosis membrane and a second reverse osmosis membrane; the two sides of the sealing strip are respectively bonded to the first end face of the first reverse osmosis membrane and the second end face of the second reverse osmosis membrane to form a membrane bag; the first end face is opposite to the second end face, and a accommodating cavity is formed between the first end face, the sealing strip and the second end face, and the accommodating cavity has a liquid injection port, and the accommodating cavity is connected to the outside world through the liquid injection port; the liquid injection port is used to inject dyeing liquid, and the accommodating cavity is used to accommodate the dyeing liquid.

[0004] However, during the detection process of reverse osmosis membranes in the prior art, due to the different sizes of reverse osmosis membrane filter elements, fixed clamps are usually relied upon when detecting reverse osmosis membranes of different sizes, which is inconvenient to adapt to filter elements of different sizes. In addition, the disassembly and assembly of the reverse osmosis filter element requires multi-step manual intervention and frequent manual adjustments, resulting in a low degree of automation, poor adaptability to the reverse osmosis membrane filter element, and low detection efficiency. Summary of the Invention

[0005] The object of the present invention is to provide a reverse osmosis membrane detection device and a reverse osmosis membrane detection method to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a reverse osmosis membrane detection device, including a left vertical plate, a right vertical plate, a fixed block, a sealing and pressing mechanism, a shifting and flipping mechanism and a supporting cylinder mechanism, the bottom right side of the left vertical plate is fixedly connected to the right vertical plate, and fixed blocks are provided on the left side of the left vertical plate and the right side of the right vertical plate, the sealing and pressing mechanism is fastened to the upper inner side of the left and right vertical plates, the shifting and flipping mechanism is embedded in the front side of the bottom of the left and right vertical plates, the top side of the shifting and flipping mechanism is fastened to the supporting cylinder mechanism, and the supporting cylinder mechanism is arranged below the sealing and pressing mechanism, the sealing and pressing mechanism includes a first driving body arranged on the upper left side of the left vertical plate, the output end of the first driving body is arranged through the interior of the left vertical plate, and the right side of the output end is coaxially rotated. The gear box is fixed with a gear block on the middle side of the outer surface of the gear box, and the right end of the gear box is rotatably connected to the right vertical plate. The front side of the gear block is meshed with a hollow gear column, and the hollow gear column longitudinally penetrates and slides inside the positioning sleeve. The positioning sleeve is fixedly connected to the middle side of the interior of the rectangular seat. The left and right sides of the rectangular seat are respectively locked and fixed with the left and right vertical plates by fastening bolts. The bottom end of the hollow gear column is fixedly connected to the chassis, and the left and right sides of the top of the chassis are fixedly connected to guide columns, and the two guide columns respectively penetrate and slide on the left and right sides of the interior of the rectangular seat. A rubber sheet is provided on the bottom side of the chassis, and a liquid inlet pipe is fixed inside the hollow gear column, and the bottom side of the liquid inlet pipe penetrates the chassis and the middle side of the rubber sheet.

[0007] Preferably, the first driving body includes a driving motor, a worm connected to the output of the driving motor, and a worm wheel meshingly driven on one side of the worm, and the middle part of the worm wheel is connected to the rotating column.

[0008] Preferably, an arc-shaped recess is provided on the rear side of the rectangular seat, and the rotating column is located inside the arc-shaped recess. A through slot is provided on the middle side of the rear portion of the positioning sleeve, and the gear block is arranged through the middle portion of the inner side of the through slot.

[0009] Preferably, the shifting and flipping mechanism includes a frame connected to the left and right upright plates on the top left and right sides respectively, two springs arranged on the left and right sides of the frame, two sliders respectively connected to the front sides of the two springs, two slide rails respectively slidably connected to the sliders close to the frame side, two rectangular grooves respectively opened on the left and right front sides of the frame, a guide groove arranged in the middle of the top side of the rectangular groove and a flipping structure passing through the front side of the frame, the two slide rails are respectively fixed on the left and right sides of the inner wall of the frame, the guide groove is arc-shaped, the flipping structure is respectively passed through the two rectangular grooves and the inside of the guide groove on the left and right sides, and the left and right sides of the rear of the flipping structure are respectively in contact with the two sliders, and the top middle side of the flipping structure is fastened to the supporting tube mechanism.

[0010] The cam is secured to the left of the second support bracket and is secured to the second support bracket by a spring which is secured to the bottom of the second support bracket.

[0011] Preferably, the first support block and the second support block are both T-shaped structures, and the rear sides and bottom sides of the first support block and the second support block are rotatably provided with column rods and rectangular shifting blocks, and the column rods and rectangular shifting blocks on the first support block and the second support block are respectively slidably provided on the inner sides of the two rectangular grooves and the guide groove.

[0012] Preferably, the supporting cylinder mechanism includes a silo which is fastened to the shifting mechanism on the middle side of the bottom, a liquid outlet pipe is embedded on the left side of the bottom of the silo, a partition is fixed on the bottom side of the inside of the silo, a cavity is formed between the bottom of the partition and the silo, a cover seat is provided on the middle side of the inside of the cavity, and the upper and lower sides of the cover seat are respectively fixed to the partition and the silo, a servo motor is fastened to the bottom side of the inside of the silo, the top output end of the servo motor is connected to a driving gear, and the driving gear is meshed with a driven gear on the left side, the top middle side of the driven gear is coaxially connected to a rotating rod, and the rotating rod passes through and rotates in the middle side of the inside of the partition, the top end of the rotating rod is connected to the positioning structure, and the positioning structure is installed on the top side of the partition, and there are no less than ten hollow holes for liquid circulation inside the partition.

[0013] Preferably, the positioning structure includes a turntable connected to the rotating rod on the middle side of the bottom, three columns sliding through the inside of the turntable, three guide rods rotatably connected to the bottom ends of the three columns, and inserted columns respectively passing through and rotating inside the three guide rods on the side away from the columns, and the bottom of the inserted columns is fastened to the partition.

[0014] Preferably, three arcuate through grooves of the same structure and size are equidistantly opened on the inner side of the top side of the turntable, and the three uprights slide through the three arcuate through grooves respectively.

[0015] In addition, the present invention also provides a reverse osmosis membrane detection method, which uses the above-mentioned reverse osmosis membrane detection device and includes the following steps:

[0016] S1. Place the cylindrical reverse osmosis membrane filter element in the silo of the supporting cylinder mechanism and center it. Use the shifting mechanism to drive the turning structure to adjust the position inside the silo so that the silo is directly below the sealing mechanism.

[0017] S2. Start the first driving body of the sealing and pressing mechanism. The worm gear drives the gear block to push the hollow tooth column downward, so that the bottom plate and rubber sheet are inserted into the interior of the silo to form a sealed cavity with the end face of the filter element. A high-pressure liquid mixed with 1.0-2.0 MPa fluorescent dye, conductive salt, and raw water is injected into the filter element through the liquid inlet pipe. When liquid continues to flow out of the liquid outlet pipe and the pressure drop is greater than 0.03 MPa / min, the filter element seal is determined to have failed.

[0018] S3. After passing through the filter element, the liquid is discharged from the liquid outlet pipe at the bottom of the silo. An optical sensor for detecting fluorescence and a conductivity sensor for detecting salinity are installed below the liquid outlet pipe 62. When the fluorescence intensity and conductivity increase abnormally, it is determined that the membrane is damaged and leaking.

[0019] S4. After the inspection, the chassis and the rubber sheet are driven to be removed from the silo, and the flipping structure is driven by the shifting mechanism to adjust the silo to be pushed forward and tilted, so as to take out the cylindrical reverse osmosis membrane filter element from the silo.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The reverse osmosis membrane detection device of the present invention can place reverse osmosis membrane group filter elements of different sizes inside the supporting cylinder mechanism and then position them, and push them to the bottom of the sealing and pressing mechanism through the shifting mechanism, and then the bottom of the sealing and pressing mechanism is inserted into the inner side of the supporting cylinder mechanism and contacts the top of the reverse osmosis membrane group filter element, thereby further fixing the position of the reverse osmosis membrane group filter element, and then the external liquid is discharged into the reverse osmosis membrane group filter element, so that the liquid after filtration and detection is discharged from the bottom of the supporting cylinder mechanism, and the performance of the reverse osmosis membrane is judged by detecting the discharged liquid, and through the adaptive sealing cooperation of the supporting cylinder mechanism and the sealing and pressing mechanism, reverse osmosis membrane group filter elements of different sizes can be detected, and the filter element is moved in and out of the detection station through the shifting mechanism, which is convenient for disassembly and replacement of the filter element, thereby improving the applicability and work efficiency of the detection.

[0022] The rectangular seat of the present invention is provided with an arc-shaped recess on the rear side, and the rotating column is located inside the arc-shaped recess. A through groove is provided on the middle side of the rear part of the positioning sleeve, and the gear block is arranged through the middle part of the inner side of the through groove, so that the front side of the gear block is engaged with the hollow gear column, thereby realizing the movement and adjustment of the longitudinal position of the hollow gear column by the rotation of the gear block. The bottom side of the liquid inlet pipe is arranged through the middle side of the chassis and the inside of the rubber sheet, and is connected to the external liquid end through the liquid inlet pipe, so that the external liquid enters the liquid inlet pipe and is discharged from the middle position of the bottom side of the rubber sheet, so that the external liquid is discharged into the reverse osmosis membrane group filter element after the chassis and the rubber sheet are inserted into the support cylinder mechanism. The external liquid is discharged into the reverse osmosis membrane group filter element, and the contact between the rubber sheet and the top of the reverse osmosis membrane group filter element realizes sealing, so that reverse osmosis membrane group filter elements of different sizes can be detected, thereby improving the adaptability of detection.

[0023] The first support block and the second support block of the present invention are both T-shaped structures. When the column rod and the rectangular shift block are not at the same horizontal position, the first long rod and the second long rod respectively drive the top side positions of the first support block and the second support block to perform a rotation action along the inside of the guide groove with the rectangular shift block as the fulcrum. After the column rod is detached from the inner side of the guide groove and is at the same horizontal position as the rectangular shift block, the first support block and the second support block are driven to perform a lateral shift in the front-to-back direction, thereby causing the first support block and the second block to perform a shift action of moving the front-to-back position and tilting forward.

[0024] The inner side of the top side of the turntable of the present invention is equidistantly provided with three arcuate grooves of the same structure and size. The three columns slide through the three arcuate grooves respectively. When the turntable rotates, the cooperation between the arcuate grooves and the columns causes the guide rod to rotate with the inserted column as the fulcrum, so that the three columns move away from or close to each other, so as to clamp and position the reverse osmosis membrane group filter elements of different sizes, thereby improving the adaptability range of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 Schematic diagram of the structure of the sealing and pressing mechanism of the present invention;

[0027] Figure 3 This is a rear view structural diagram of the connection between the gear block and the hollow gear column of the present invention;

[0028] Figure 4 This is a schematic structural diagram of the connection between the shifting mechanism and the supporting cylinder mechanism of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the present invention when the turnover structure is moved to the front side and pushed in an inclined manner;

[0030] Figure 6 It is a schematic diagram of the structure inside the supporting cylinder mechanism of the present invention;

[0031] Figure 7 This is a schematic top view of the structure of the connection between the turntable and the column of the present invention.

[0032] In the figure: left vertical plate 1, right vertical plate 2, fixed block 3, sealing and pressing mechanism 4, shifting and flipping mechanism 5, supporting cylinder mechanism 6, first driving body 41, rotating column 42, gear block 43, hollow gear column 44, positioning sleeve 45, rectangular seat 46, fastening bolt 47, chassis 48, guide column 49, rubber sheet 410, liquid inlet pipe 411, through groove 451, frame 51, spring 52, slider 53, slide rail 54, rectangular groove 55, guide groove 56, flipping structure 57, mounting seat 571, second driving body 572, first short rod 573, shaft rod 574, second short rod 575, first long rod 576, second long rod 577, first support block 578, first Second support block 579, carrier 5710, protrusion 5711, column 5791, rectangular shift block 5792, silo 61, liquid outlet pipe 62, partition 63, cover seat 64, servo motor 65, driving gear 66, driven gear 67, rotating rod 68, positioning structure 69, turntable 691, column 692, guide rod 693, plug column 694, arc-shaped slot 695. DETAILED DESCRIPTION

[0033] In order to further explain the technical solution of the present invention, it is described in detail below through specific embodiments.

[0034] See also Figure 1 The present invention provides a reverse osmosis membrane detection device, including a left vertical plate 1, a right vertical plate 2, a fixed block 3, a sealing and pressing mechanism 4, a shifting and flipping mechanism 5 and a supporting cylinder mechanism 6. The bottom right side of the left vertical plate 1 is fixedly connected to the right vertical plate 2. The left side of the left vertical plate 1 and the right side of the right vertical plate 2 are both provided with fixed blocks 3. The sealing and pressing mechanism 4 is fastened to the upper inner side of the left vertical plate 1 and the right vertical plate 2. The shifting and flipping mechanism 5 is embedded in the front side of the bottom of the left vertical plate 1 and the right vertical plate 2. The top side of the shifting and flipping mechanism 5 is fastened to the supporting cylinder mechanism 6, and the supporting cylinder mechanism 6 is arranged below the sealing and pressing mechanism 4. The top of the sealing and pressing mechanism 4 is connected to the external liquid end. The reverse osmosis membrane group filter element is placed on the supporting cylinder mechanism After positioning inside the structure 6, the supporting cylinder mechanism 6 is pushed into the bottom of the sealing and pressing mechanism 4 by the shifting mechanism 5, and then the bottom of the sealing and pressing mechanism 4 is inserted into the inner side of the supporting cylinder mechanism 6 and contacts above the reverse osmosis membrane group filter element, so as to fix the position of the reverse osmosis membrane group filter element, and then the external liquid is discharged into the reverse osmosis membrane group filter element, so that the liquid after filtration detection is discharged from the bottom of the supporting cylinder mechanism 6, and the performance of the reverse osmosis membrane is judged by detecting the discharged liquid, and through the adaptive sealing cooperation of the supporting cylinder mechanism 6 and the sealing and pressing mechanism 4, the reverse osmosis membrane group filter elements of different sizes can be tested, thereby improving the applicability and efficiency of the detection.

[0035] See also Figure 1 、 Figure 2 and Figure 3 The present invention provides a reverse osmosis membrane detection device, the sealing mechanism 4 includes a first driving body 41 arranged on the upper left side of the left vertical plate 1, the output end of the first driving body 41 is arranged inside the left vertical plate 1, and a rotating column 42 is coaxially rotated on the right side of the output end, and a gear block 43 is wrapped and fixed on the middle side of the outer surface of the rotating column 42, and the right end of the rotating column 42 is rotatably connected to the right vertical plate 2. Under the action of the first driving body 41, the rotating column 42 drives the gear block 43 to rotate stably, and after the rotation, the gear block 43 is ensured to rotate stably. 3 is fixed and does not rotate under the action of external force. The front side of the gear block 43 is meshed with a hollow tooth column 44, which slides longitudinally inside the positioning sleeve 45, so that under the action of the gear block 43, the hollow tooth column 44 moves in a stable longitudinal position inside the positioning sleeve 45. The positioning sleeve 45 is fixedly connected to the middle side of the rectangular seat 46. The left and right sides of the rectangular seat 46 are respectively locked and fixed with the left vertical plate 1 and the right vertical plate 2 by fastening bolts 47. The bottom end of the hollow tooth column 44 is fixedly connected to the chassis 48 , when the hollow tooth column 44 is longitudinally displaced, the height position of the chassis 48 is changed. Guide columns 49 are fixedly connected to the left and right sides of the top of the chassis 48, and the two guide columns 49 respectively penetrate and slide on the left and right sides of the rectangular seat 46. The guide columns 49 and the rectangular seat 46 are limited by the cooperation to ensure the stability of the hollow tooth column 44 and the chassis 48 when the position is changed longitudinally, and it is not easy to cause position deviation. A rubber sheet 410 is provided on the bottom side of the chassis 48, and a liquid inlet pipe 411 is fixedly penetrated inside the hollow tooth column 44. The liquid inlet pipe 411 is fixed to the bottom side of the chassis 48. The bottom side of 11 is provided through the middle side of the bottom plate 48 and the rubber sheet 410, and is connected to the external liquid end through the liquid inlet pipe 411, so that the external liquid enters the liquid inlet pipe 411 and is discharged from the middle position of the bottom side of the rubber sheet 410. After the bottom plate 48 and the rubber sheet 410 are inserted into the support cylinder mechanism 6, the external liquid is discharged into the reverse osmosis membrane group filter element. The contact between the rubber sheet 410 and the top of the reverse osmosis membrane group filter element achieves sealing, thereby enabling detection of reverse osmosis membrane group filter elements of different sizes, thereby improving the adaptability of detection.

[0036] Among them, the first driving body 41 includes a driving motor, a worm connected to the output of the driving motor and a worm wheel meshing with one side of the worm. The middle part of the worm wheel is connected to the rotating column 42 to prevent the rotating column 42 from rotating under the action of external force when the driving motor is not in motion. An arc-shaped recess is provided on the rear side of the rectangular seat 46, and the rotating column 42 is located on the inner side of the arc-shaped recess. A through groove 451 is provided on the middle side of the rear part of the positioning sleeve 45, and the gear block 43 is arranged through the middle part of the inner side of the through groove 451, so that the front side of the gear block 43 is meshed with the hollow tooth column 44, thereby realizing the movement and adjustment of the longitudinal position of the hollow tooth column 44 through the rotation of the gear block 43.

[0037] See also Figure 1 、 Figure 4 and Figure 5 The present invention provides a reverse osmosis membrane detection device, wherein the shifting mechanism 5 includes a frame 51 connected to the left vertical plate 1 and the right vertical plate 2 on the left and right sides of the top, two springs 52 arranged on the left and right sides of the frame 51, two sliders 53 connected to the front sides of the two springs 52, and two slide rails 54 slidably connected to the sliders 53 on one side of the frame 51. The sliders 53 can move in the forward and backward directions on the slide rails 54, and the springs 52 provide a forward restoring force to the sliders 53. Two rectangular grooves 55 are respectively provided on the front of the left and right sides of the frame 51, a guide groove 56 is provided in the middle of the top side of the rectangular groove 55, and a flipping structure 57 is provided on the front side of the frame 51. The two slide rails 54 are respectively fixed The guide grooves 56 are set on the left and right sides of the inner wall of the frame 51 and are arc-shaped. The left and right sides of the flip structure 57 are respectively penetrated by the two rectangular grooves 55 and the guide grooves 56, so that the flip structure 57 can complete the front and rear position movement and the forward tilting movement trajectory under the guiding and limiting action of the rectangular grooves 55 and the guide grooves 56. The left and right sides of the rear of the flip structure 57 are respectively in contact with the two sliders 53, and the sliders 53 provide a certain reset force to the flip structure 57. The middle side of the top of the flip structure 57 is fastened to the support cylinder mechanism 6, so that under the action of the flip structure 57, the support cylinder mechanism 6 is driven to move forward and backward and tilt forward, thereby facilitating the rapid disassembly and assembly of the reverse osmosis membrane group filter element inside the support cylinder mechanism 6.

[0038] The turning structure 57 includes a mounting base 571 fixed to the right front side of the bottom of the frame 51, a second driving body 572 arranged on the right side of the mounting base 571, a first short rod 573 connected to the left output end of the second driving body 572, a shaft rod 574 coaxially rotating on the left bottom of the first short rod 573, and a second short rod 575 connected to the left end of the shaft rod 574. The second driving body 572 is used as a power source to make the first short rod 573 drive the second short rod 575 to perform a synchronous turning action through the shaft rod 574, rotate the first long rod 576 connected to the left top of the first short rod 573, and rotate the second long rod 577 connected to the top of the second short rod 575 near the mounting base 571, so as to drive the first long rod 576 to turn through the first short rod 573, and drive the second long rod 577 to turn through the second short rod 575, and connect the first support block 578 to the left rear side of the first long rod 576 and the second support block 579 to the right rear side of the second long rod 577. 79, a carrier 5710 fixedly connected to the top side of the first support block 578 and the second support block 579, and a protruding piece 5711 fixedly connected to the top middle side of the carrier 5710, the two support blocks drive the carrier 5710 and the protruding piece 5711 to shift through two long rods, the second driving body 572 has the same structure as the first driving body 41, the shaft 574 passes through and rotates on the front lower side of the frame 51, the first support block 578 and the second support block 579 are respectively connected to the two rectangular slots 55 and On the inner side of the guide groove 56, the first support block 578 and the second support block 579 are moved forward and backward and tilted forward under the limiting and guiding action of the rectangular groove 55 and the guide groove 56. The rear sides of the first support block 578 and the second support block 579 are respectively in contact and slide with the two sliders 53, and the sliders 53 play a supporting and resetting role on the rear side. The top side of the protrusion 5711 is fastened to the support cylinder mechanism 6 to install and fix the support cylinder mechanism 6, thereby driving the support cylinder mechanism 6 to move.

[0039] Among them, the first support block 578 and the second support block 579 are both T-shaped structures, and the rear sides and bottom sides of the first support block 578 and the second support block 579 are rotatably provided with a column rod 5791 and a rectangular shift block 5792, and the column rod 5791 and the rectangular shift block 5792 on the first support block 578 and the second support block 579 are respectively slidably provided on the inner sides of the two rectangular grooves 55 and the guide groove 56, the column rod 5791 on the first support block 578 is connected to the first long rod 576, and the column rod 5791 on the second support block 579 is connected to the second long rod 577. When the rectangular moving block 5792 is not in the same horizontal position, the first long rod 576 and the second long rod 577 respectively drive the top side positions of the first support block 578 and the second support block 579 to perform a rotation movement along the inside of the guide groove 56 with the rectangular moving block 5792 as the fulcrum, and after the column rod 5791 is separated from the inner side of the guide groove 56 and is at the same horizontal position as the rectangular moving block 5792, the first support block 578 and the second support block 579 are driven to perform a lateral shift in the front-to-back direction, thereby causing the first support block 578 and the second support block 579 to perform a shift movement in the front-to-back position and tilt forward.

[0040] See also Figure 1 、 Figure 6 and Figure 7 The present invention provides a reverse osmosis membrane detection device. The support cylinder mechanism 6 includes a silo 61 fastened to the shifting mechanism 5 at the middle side of the bottom. The silo 61 performs a shifting action under the action of the shifting mechanism 5. A liquid outlet pipe 62 is embedded on the left side of the bottom of the silo 61. A partition 63 is fixed to the bottom side of the silo 61. A cavity is formed between the bottom of the partition 63 and the silo 61. A cover seat 64 is provided in the middle side of the cavity, and the upper and lower sides of the cover seat 64 are respectively fixed to the partition 63 and the silo 61. A servo motor 65 is fastened to the bottom side of the silo 61. The top output end of the servo motor 65 is connected to a driving gear 66. The left side of the driving gear 66 is meshed with a driven gear 67. The middle side of the top of the driven gear 67 is coaxially connected to a rotating rod 68. Under the action of the servo motor 65, the driving gear 66 drives the rotating rod 68 to rotate through the cooperation with the driven gear 67. The rotating rod 68 rotates through the middle side of the partition 63. The top end of the rotating rod 68 is connected to the positioning structure 69, and the positioning structure 69 is installed on the top side of the partition 63 to drive the positioning structure 69 to move when the rotating rod 68 rotates, thereby clamping and positioning the reverse osmosis membrane group filter element at the outer position. There are no less than ten hollow holes for liquid circulation inside the partition 63 to facilitate liquid circulation and discharge, and the discharged liquid is detected externally.

[0041] Among them, the positioning structure 69 includes a turntable 691 connected to the rotating rod 68 on the middle side of the bottom, three columns 692 sliding through the turntable 691, three guide rods 693 rotatably connected to the bottom ends of the three columns 692, and plug columns 694 respectively passing through and rotating inside the three guide rods 693 away from the column 692. The bottom of the plug column 694 is fastened to the partition 63. Three arc-shaped grooves 695 of the same structure and size are equidistantly provided on the inner side of the top side of the turntable 691. The three columns 692 slide through the three arc-shaped grooves 695 respectively. When the turntable 691 rotates, the guide rod 693 is rotated with the plug column 694 as the fulcrum through the cooperation between the arc-shaped groove 695 and the column 692, so that the three columns 692 are moved away from or close to each other, so as to clamp and position the reverse osmosis membrane group filter elements of different sizes, thereby improving the adaptability range of detection.

[0042] The present invention provides a reverse osmosis membrane detection method, which uses the above-mentioned reverse osmosis membrane detection device, and the steps are as follows:

[0043] First, control and start the second driving body 572, so that the first short rod 573 drives the second short rod 575 to perform a synchronous indexing action through the shaft 574, the first short rod 573 drives the first long rod 576 to perform an indexing action, and the second short rod 575 drives the second long rod 577 to perform an indexing action, and the two long rods drive the two support blocks to drive the carrier 5710 and the protruding piece 5711 to move forward, and under the action of the guide groove 56, the carrier 5710 and the protruding piece 5711 drive the silo 61 to tilt forward, and then place the cylindrical reverse osmosis membrane filter element in the silo 61. The servo motor 65 is controlled to start. Under the action of the servo motor 65, the driving gear 66 drives the rotating rod 68 to rotate through the cooperation with the driven gear 67. When the turntable 691 rotates, the arc-shaped through-slot 695 cooperates with the column 692 to cause the guide rod 693 to rotate with the plug column 694 as the fulcrum, so that the three columns 692 are close to each other, and the reverse osmosis membrane group filter elements of different sizes placed in the silo 61 are centered. Then, the silo 61 is adjusted to return to its original position through the second driving body 572, so that the silo 61 is located directly below the sealing and pressing mechanism 4.

[0044] Second, start the first driving body 41, and drive the hollow tooth column 44 downward through the worm gear drive gear block 43, so that the bottom plate 48 and the rubber sheet 410 are inserted into the interior of the silo 61 to form a sealed cavity with the end face of the filter element. The liquid inlet pipe 411 is located above the water inlet at the top of the filter element. A high-pressure liquid mixed with 1.0-2.0 MPa fluorescent dye, conductive salt and raw water is injected into the filter element through the liquid inlet pipe 411. The high-pressure liquid passes through the filter element and is discharged from the liquid outlet pipe 62. When liquid continues to flow out of the liquid outlet pipe 62 and the pressure drop is greater than 0.03 MPa / min, the filter element seal is determined to have failed.

[0045] Third, the fluorescence and salinity are detected below the liquid outlet pipe 62. When the fluorescence intensity and conductivity increase abnormally, it is determined that the membrane is damaged and leaking.

[0046] Fourth, after the inspection, the chassis 48 and the rubber sheet 410 are driven to move out of the silo 61 , and then the second driving body 572 is controlled to start and adjust the silo 61 to be pushed forward and tilted so as to remove the cylindrical reverse osmosis membrane filter element from the silo 61 .

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A reverse osmosis membrane detection device, comprising a left vertical plate (1), wherein the bottom right side of the left vertical plate (1) is fixedly connected to a right vertical plate (2), and a fixing block (3) is provided on the left side of the left vertical plate (1) and the right side of the right vertical plate (2), characterized in that: The invention also includes a sealing and pressing mechanism (4) fastened to the upper inner side of the left vertical plate (1) and the right vertical plate (2), a shifting mechanism (5) embedded in the front bottom side of the left vertical plate (1) and the right vertical plate (2), and a supporting cylinder mechanism (6) fastened to the top side of the shifting mechanism (5), wherein the supporting cylinder mechanism (6) is arranged below the sealing and pressing mechanism (4), and the sealing and pressing mechanism (4) includes a first driving body (41) arranged on the upper left side of the left vertical plate (1), an output end of the first driving body (41) is arranged through the inside of the left vertical plate (1), and a rotating column (42) is coaxially rotated on the right side of the output end, a gear block (43) is wrapped and fixed on the middle side of the outer surface of the rotating column (42), and the right end of the rotating column (42) is rotatably connected to the right vertical plate (2), and a hollow tooth column (44) is meshed and transmitted on the front side of the gear block (43). The hollow tooth column (44) is longitudinally penetrated and slid inside the positioning sleeve (45), and the positioning sleeve (45) is fixedly connected to the middle side of the rectangular seat (46). The left and right sides of the rectangular seat (46) are respectively locked and fixed with the left vertical plate (1) and the right vertical plate (2) by fastening bolts (47). The bottom end of the hollow tooth column (44) is fixedly connected to the chassis (48), and the left and right sides of the top of the chassis (48) are fixedly connected to guide columns (49), and the two guide columns (49) are respectively penetrated and slid on the left and right sides of the rectangular seat (46). A rubber sheet (410) is provided on the bottom side of the chassis (48). A liquid inlet pipe (411) is penetrated and fixed inside the hollow tooth column (44), and the bottom side of the liquid inlet pipe (411) is penetrated and provided on the middle side of the chassis (48) and the rubber sheet (410). The shifting mechanism (5) comprises a frame (51) connected to the left vertical plate (1) and the right vertical plate (2) on the left and right sides of the top, two springs (52) arranged on the left and right sides of the frame (51), two sliders (53) respectively connected to the front sides of the two springs (52), two slide rails (54) respectively connected to the sliders (53) on the side close to the frame (51), two rectangular grooves (55) respectively opened on the front of the left and right sides of the frame (51), and a guide rail (55) provided in the middle of the top side of the rectangular groove (55). The guide groove (56) and the flip structure (57) are respectively fixed to the left and right sides of the inner wall of the frame (51), and the guide groove (56) is arc-shaped. The left and right sides of the flip structure (57) are respectively inserted into the two rectangular grooves (55) and the guide groove (56), and the left and right sides of the rear of the flip structure (57) are respectively in contact with the two sliders (53). The top middle side of the flip structure (57) is fastened to the support cylinder mechanism (6); The flip structure (57) comprises a mounting seat (571) fixed to the right front side of the bottom of the frame (51), a second driving body (572) arranged on the right side of the mounting seat (571), a first short rod (573) connected to the left output end of the second driving body (572), a shaft (574) coaxially rotating on the left bottom of the first short rod (573), a second short rod (575) connected to the left end of the shaft (574), a first long rod (576) rotatably connected to the left top of the first short rod (573), a second long rod (577) rotatably connected to the top of the second short rod (575) near the mounting seat (571), a first support block (578) connected to the left rear side of the first long rod (576), and a second long rod (579) connected to the left end of the second long rod (570). 77) a second support block (579) on the right rear side, a carrier (5710) fixedly connected to the top side of the first support block (578) and the second support block (579), and a protrusion (5711) fixedly connected to the top middle side of the carrier (5710), the second driving body (572) has the same structure as the first driving body (41), the shaft (574) passes through and rotates on the front lower side of the frame (51), the first support block (578) and the second support block (579) are respectively connected to the inner sides of the two rectangular grooves (55) and the guide groove (56), and the rear sides of the first support block (578) and the second support block (579) are respectively in contact and sliding contact with the two sliders (53), and the top side of the protrusion (5711) is fastened to the support cylinder mechanism (6); The first support block (578) and the second support block (579) are both T-shaped structures, and the rear sides and bottom sides of the first support block (578) and the second support block (579) are rotatably provided with a column rod (5791) and a rectangular shift block (5792), and the column rod (5791) and the rectangular shift block (5792) on the first support block (578) and the second support block (579) are respectively slidably provided on the inner sides of the two guide grooves (56) and the rectangular groove (55), so that the first support block (578) and the second support block (579) can move forward and backward and tilt forward under the limiting and guiding action of the rectangular groove (55) and the guide groove (56).

2. A reverse osmosis membrane detection device according to claim 1, characterized in that: The first driving body (41) comprises a driving motor, a worm connected to the output of the driving motor, and a worm wheel meshingly driven on one side of the worm, and the middle portion of the worm wheel is connected to the rotating column (42).

3. A reverse osmosis membrane detection device according to claim 2, characterized in that: An arc-shaped recess is provided on the rear side of the rectangular seat (46), and the rotating column (42) is located inside the arc-shaped recess. A through slot (451) is provided on the middle side of the rear portion of the positioning sleeve (45), and the gear block (43) is provided through the middle portion of the inner side of the through slot (451).

4. A reverse osmosis membrane detection device according to claim 3, characterized in that: The support cylinder mechanism (6) includes a silo (61) fastened to the shifting mechanism (5) at the middle side of the bottom, a liquid outlet pipe (62) is embedded on the left side of the bottom of the silo (61), a partition (63) is fixed to the bottom side of the interior of the silo (61), a cavity is formed between the bottom of the partition (63) and the silo (61), a cover seat (64) is provided at the middle side of the interior of the cavity, and the upper and lower sides of the cover seat (64) are respectively fixed to the partition (63) and the silo (61), and a servo motor (65) is fastened to the bottom side of the interior of the silo (61). The top output end of the servo motor (65) is connected to a driving gear (66), and the left side of the driving gear (66) is meshed with a driven gear (67). The middle side of the top of the driven gear (67) is coaxially connected to a rotating rod (68), and the rotating rod (68) passes through and rotates on the middle side of the interior of the partition (63). The top end of the rotating rod (68) is connected to a positioning structure (69), and the positioning structure (69) is installed on the top side of the partition (63). No less than ten hollow holes for liquid circulation are opened inside the partition (63).

5. A reverse osmosis membrane detection device according to claim 4, characterized in that: The positioning structure (69) includes a turntable (691) connected to the rotating rod (68) at the middle side of the bottom, three columns (692) sliding through the turntable (691), three guide rods (693) rotatably connected to the bottom ends of the three columns (692), and plug columns (694) respectively passing through and rotatably inside the three guide rods (693) on a side away from the columns (692), and the bottom of the plug columns (694) is fastened to the partition (63).

6. A reverse osmosis membrane detection device according to claim 5, characterized in that: Three arc-shaped through-grooves (695) of the same structure and size are equidistantly formed on the inner side of the top of the rotating disk (691), and the three upright posts (692) respectively penetrate and slide inside the three arc-shaped through-grooves (695).

7. A reverse osmosis membrane detection method, using the reverse osmosis membrane detection device according to any one of claims 4 to 6, characterized in that: The steps include: S1. Place the cylindrical reverse osmosis membrane filter element in the silo (61) of the supporting cylinder mechanism (6) and center it. Drive the turning structure (57) via the turning mechanism (5) to adjust the position inside the silo (61) so that the silo (61) is located directly below the sealing mechanism (4). S2, start the first driving body (41) of the sealing and pressing mechanism (4), and drive the hollow tooth column (44) downward through the worm gear driving gear block (43), so that the bottom plate (48) and the rubber sheet (410) are inserted into the interior of the silo (61) to form a sealed cavity with the end face of the filter element, and inject a high-pressure liquid mixed with 1.0-2.0 MPa fluorescent dye, conductive salt and raw water into the filter element through the liquid inlet pipe (411). When the liquid continues to flow out of the liquid outlet pipe (62) and the pressure drop is greater than 0.03 MPa / min, it is determined that the filter element seal has failed; S3, after passing through the filter element, the liquid is discharged from the liquid outlet pipe (62) at the bottom side of the silo (61). An optical sensor for detecting fluorescence and a conductivity sensor for detecting salt are installed below the liquid outlet pipe (62). When the fluorescence intensity and conductivity increase abnormally, it is determined that the membrane is damaged and causes leakage; S4. After the inspection, the chassis (48) and the rubber sheet (410) are driven to be removed from the silo (61). The silo (61) is adjusted to be pushed forward and tilted by the shifting mechanism (5) so as to remove the cylindrical reverse osmosis membrane filter element from the silo (61).

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