A device and method for detecting the air tightness of a ceramic flat sheet membrane module

Abstract

A kind of ceramic flat sheet membrane group air tightness detection device and method, including rack, hoist plate, fixed limit frame, mobile limit frame, controller, inflation mechanism and lifting mechanism, fixed limit frame is fixed at one end of rack, mobile limit frame is slid across on rack, hoist plate is connected between fixed limit frame and mobile limit frame on rack, connecting bolt is arranged on hoist plate, controller is fixed on the top of fixed limit frame by support rod, the two sides of fixed limit frame and mobile limit frame are limit plate, first telescopic cylinder is fixed on the upper portion of the outer side of two limit plates, inflation mechanism is fixed at the telescopic end of first telescopic cylinder, the inner side of two inflation mechanisms is fixed with second telescopic cylinder.The present application can accurately and quickly identify the position, quantity and shape of inflation channel on ceramic flat sheet membrane group and obtain information by using telescopic cylinder drive and matching annular plugging head and hole identification sensor.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of mechanical seal detection, in particular to a ceramic flat plate membrane module air tightness detection device and method. BACKGROUND

[0002] The ceramic flat plate membrane module is widely applied to the fields of water treatment, chemical industry, food, etc. as a high-efficiency separation device. The core thereof is assembled by 34 single ceramic membrane plates, and the sealing property after assembly directly influences the filtering efficiency and service life of the membrane module. Since the membrane module adopts the upper and lower modular design, the internal water outlet channel structure is complex and is optimized in fluid mechanics, and the traditional air tightness detection method is difficult to meet the sealing detection requirements of the multiple channels and high precision. SUMMARY

[0003] The application aims at solving the defects of the prior art and provides a ceramic flat plate membrane module air tightness detection device.

[0004] In order to achieve the above-mentioned purpose, the following technical scheme is adopted.

[0005] A ceramic flat plate membrane module air tightness detection device is characterized by comprising a rack, a hoisting disc, a fixed limiting frame, a movable limiting frame, a controller, a gas filling mechanism and a lifting mechanism, the fixed limiting frame is fixed at one end of the rack, the movable limiting frame is slidably connected on the rack, the hoisting disc is connected between the fixed limiting frame and the movable limiting frame on the rack, connecting bolts are arranged on the hoisting disc, the controller is fixed on the top of the fixed limiting frame through a support rod, limiting plates are arranged on the two sides of the fixed limiting frame and the movable limiting frame, a first telescopic cylinder is fixed on the outer side surface of each of the two limiting plates, the gas filling mechanism is fixed at the telescopic end of the first telescopic cylinder, a second telescopic cylinder is fixed on the inner side surface of the two gas filling mechanisms, the lifting mechanism is fixed at the telescopic end of the second telescopic cylinder, the gas filling mechanism is in communication with an external gas source, an electromagnetic valve I is connected on the pipeline in communication, the electromagnetic valve I is electrically connected with the controller, a button mounting block is fixed on each of the two sides of the end of the rack, a gas filling button, a closing button and a starting button are arranged on the button mounting block, the gas filling button, the closing button and the starting button are connected to the controller, and the first telescopic cylinder and the second telescopic cylinder are electrically connected with the controller.

[0006] Double grooves are formed on the rack along the length direction, and sliding blocks are arranged on the top and bottom surfaces of the fixed limiting frame and the movable limiting frame and slidably connected in the grooves.

[0007] The lifting mechanism is connected with a guide reinforcing rod on the side surface, and the guide reinforcing rod is slidably connected on the limiting plate.

[0008] The inflation mechanism comprises an inflation frame, an inflation air inlet and an inflation air outlet, the inflation frame is a hollow structure, the inflation air inlet is arranged at the top of the inflation frame, the inflation air outlet is arranged at the lower outer side of the inflation frame, and a hole recognition sensor is installed at the inflation air outlet.

[0009] An annular sealing head is arranged at the periphery of the inflation air outlet of the inflation mechanism.

[0010] A pressure sensor is further installed at the inflation air outlet.

[0011] The lifting mechanism comprises a lifting frame, and the lower part of the lifting frame is integrally connected with a lifting hook.

[0012] A non-slip pad is connected to the inner side of the lower part of the plate body of the limiting plate through a screw.

[0013] A ceramic flat sheet membrane module air tightness detection method comprises the following steps:

[0014] Step 1: Start the second telescopic cylinder to fix the assembled ceramic flat sheet membrane module through the lifting mechanism and the limiting frame, and then hoist the assembled ceramic flat sheet membrane module and the detection device into the detection tank through the hoisting disc;

[0015] Step 2: Trigger the start button, and automatically recognize the inflation hole of the ceramic flat sheet membrane module through the hole recognition sensor on the inflation mechanism and accurately position the inflation hole;

[0016] Step 3: Start the first telescopic cylinder to seal the positioned inflation hole through the annular sealing head;

[0017] Step 4: Trigger the inflation button, fill the gas in the external gas source into the inflation hole through the inflation mechanism, monitor the gas pressure change by using the pressure sensor, and determine whether the air tightness of the ceramic flat sheet membrane module is qualified according to the gas pressure change and the human observation of the bubble in the tank.

[0018] Step 5: After the detection is completed, trigger the close button, withdraw the annular sealing head from the inflation hole by retracting the first telescopic cylinder, discharge the gas in the inflation hole, and then hoist the ceramic flat sheet membrane module away from the detection tank.

[0019] The present application has the advantages that the fixed limiting frame and the movable limiting frame are combined to realize flexible adaptation to ceramic flat sheet membrane modules of different sizes, ensure the universality and stability of the detection device, the telescopic cylinder is used to drive the inflation mechanism, the annular sealing head and the hole recognition sensor are matched, the position, number and shape of the inflation hole on the ceramic flat sheet membrane module can be accurately and quickly recognized and information can be obtained, air leakage is avoided, and the detection accuracy is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of the present application;

[0021] Figure 2 is a connection structure schematic diagram of the inflation mechanism, lifting mechanism and limiting mechanism of the present application;

[0022] Figure 3 is a structural schematic diagram of the ceramic flat sheet membrane module of the present application;

[0023] In the figure: 1- frame; 2- hoisting disc; 3- fixed limiting frame; 4- movable limiting frame; 41- sliding block; 5- support rod; 6- controller; 7- first telescopic cylinder; 8- inflation mechanism; 81- inflation air inlet; 82- inflation frame; 83- annular blocking head; 84- inflation air outlet; 85- hole recognition sensor; 86- pressure sensor; 9- lifting mechanism; 91- lifting frame; 92- lifting hook; 93- guide reinforcing rod; 10- limiting plate; 101- plate body; 102- non-slip pad; 103- screw; 11- inflation button; 12- closing button; 13- starting button; 14- sliding groove; 15- second telescopic cylinder; 16- button mounting block; 17- ceramic flat sheet membrane module; 171- groove;

[0024] The present application will be described in detail below with reference to the embodiments of the present application and the accompanying drawings. DETAILED DESCRIPTION

[0025] The present application will be described in detail below with reference to the embodiments of the present application and the accompanying drawings.

[0026] A kind of ceramic flat sheet membrane group air tightness detection device, it is characterized in that, including rack 1, hoist plate 2, fixed limit frame 3, mobile limit frame 4, controller 6, inflation mechanism 8 and lifting mechanism 9, fixed limit frame 3 is fixed at one end of rack 1, mobile limit frame 4 is slid across on rack 1, hoist plate 2 is connected between fixed limit frame 3 and mobile limit frame 4 on rack 1, connecting bolt is arranged on hoist plate 2, controller 6 is fixed on the top of fixed limit frame 3 by support rod 5, the two sides of fixed limit frame 3 and mobile limit frame 4 are limit plate 10, first telescopic cylinder 7 is fixed on the outer side face of the upper portion of two limit plates 10, inflation mechanism 8 is fixed at the telescopic end of first telescopic cylinder 7, the inner side face of two inflation mechanisms 8 is fixed with second telescopic cylinder 15, lifting mechanism 9 is fixed at the telescopic end of second telescopic cylinder 15, inflation mechanism 8 is communicated with external air source, electromagnetic valve I is connected on the pipeline communicated, electromagnetic valve I is electrically connected with controller 6, the end of rack 1 is fixed with one button mounting block 16 on the two sides, inflation button 11, closing button 12 and start button 13 are installed on button mounting block 16, inflation button 11, closing button 12 and start button 13 are connected to controller 6, so that controller 6 is triggered respectively with start button 13, inflation button 11 and closing button 12 to trigger detection start, inflation execution and detection stop action respectively, first telescopic cylinder 7 and second telescopic cylinder 15 are electrically connected with controller 6.

[0027] The rack 1 is provided with double-channel sliding grooves 14 along the length direction, and the top and bottom surfaces of the fixed limit frame 3 and the mobile limit frame 4 are provided with sliding blocks 41 which are slidably connected in the sliding grooves 14. The rack 1 adopts a standardized sliding groove structure, which is convenient for expansion or adjustment of the detection station to adapt to different detection requirements.

[0028] The lifting mechanism 9 is connected with a guide reinforcing rod 93 which is slidably connected on the limit plate 10.

[0029] The inflation mechanism 8 includes an inflation frame 82, an inflation air inlet 81 and an inflation air outlet 84. The inflation frame 82 is a hollow structure, the inflation air inlet 81 is arranged at the top of the inflation frame 82, and the inflation air outlet 84 is arranged at the lower outer side surface of the inflation frame 82. A hole recognition sensor 85 is installed at the inflation air outlet 84. The hole recognition sensor 85 is selected from the KEYENCE IV series, such as the model IV2-G300CA.

[0030] An annular sealing head 83 is arranged at the periphery of the inflation air outlet 84 on the inflation frame 82 of the inflation mechanism 8, so as to form a sealed environment.

[0031] A pressure sensor 86 is also installed at the inflation air outlet 84, which can monitor the change of air pressure in real time and automatically judge the sealing property, so as to ensure the reliability of the detection result.

[0032] The lifting mechanism 9 includes a lifting frame 91, and the lower part of the lifting frame 91 is integrally connected with a lifting hook 92. The lifting mechanism 9 is driven by the second telescopic cylinder 15, and is provided with a guide reinforcing rod 93 to ensure that the membrane group device is smoothly lifted during detection, and damage caused by uneven force is avoided.

[0033] The lower inner side of the plate body 101 of the limiting plate 10 is connected with an anti-skid pad 102 through a screw 103. The limiting plate 10 fixes the ceramic flat plate membrane group device 17 in combination with the lifting mechanism 9, and facilitates accurate identification and positioning of the inflation channel by the inflation mechanism 8,

[0034] A ceramic flat plate membrane group device air tightness detection method, the steps of which are as follows:

[0035] Step 1: Start the second telescopic cylinder 15 to fix the assembled ceramic flat plate membrane group device 17 through the lifting mechanism 9 and the limiting frame 10, and then hoist the assembled ceramic flat plate membrane group device 17 and the detection device into the detection water tank through the lifting disc 2;

[0036] Step 2: Trigger the start button 13, and automatically identify the inflation channel of the ceramic flat plate membrane group device 17 through the channel identification sensor 85 on the inflation mechanism 8 and accurately position the inflation channel. The ceramic flat plate membrane group device 17 includes a membrane group device frame and 34 ceramic flat plate membranes. Three recesses 171 in series are symmetrically arranged on the two end frames of the membrane group device frame which are parallel to the ceramic flat plate membranes. Four limiting frames 10 are respectively inserted into the first recesses symmetrically close to the middle positions of the two end frames of the membrane group device frame and tightly abut against the side walls. Four lifting mechanisms 9 are respectively hooked on the side walls of the second recesses symmetrically on the two end frames. Four inflation mechanisms 8 are respectively inserted into the third recesses symmetrically on the two end frames. The position of the moving limiting frame 4 on the rack 1 and the first telescopic cylinder 7 are adjusted so that the inflation outlet 84 of the inflation mechanism 8 is aligned with the inflation channel opening provided in the third recess.

[0037] Step 3: Start the first telescopic cylinder 7 to seal the positioned inflation channel through the annular plugging head 83.

[0038] Step 4: Trigger the inflation button 11 to fill the gas in the external gas source into the inflation channel through the inflation mechanism 8, and simultaneously monitor the gas pressure change by using the pressure sensor 86. The controller 6 determines whether the air tightness of the ceramic flat plate membrane group device 17 is qualified according to the gas pressure change and the human observation of the bubble condition in the water tank.

[0039] Step 5: After the detection is completed, trigger the shutdown button 12 to withdraw the annular plugging head 83 from the inflation channel opening by retracting the first telescopic cylinder 7, discharge the gas in the inflation channel, and then hoist the ceramic flat plate membrane group device 17 away from the detection water tank through the lifting mechanism 9.

[0040] In the description of the invention, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the invention.

[0041] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0042] In the invention, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the invention can be understood according to the specific circumstances.

[0043] The invention has been described above in conjunction with the drawings, and it is obvious that the specific implementation of the invention is not limited by the above manner, as long as various improvements are made by adopting the method concept and technical solutions of the invention, or directly applied to other occasions without improvement, all within the protection scope of the invention.

Claims

1. A device for detecting air tightness of a ceramic flat sheet membrane module, characterized by, The utility model relates to a kind of inflatable lifting device, including rack (1), hoist plate (2), fixed limiting frame (3), mobile limiting frame (4), controller (6), inflation mechanism (8) and lifting mechanism (9), fixed limiting frame (3) is fixed in one end of rack (1), mobile limiting frame (4) is slid across on rack (1), hoist plate (2) is connected between fixed limiting frame (3) and mobile limiting frame (4) on rack (1), connecting bolt is set on hoist plate (2), controller (6) is fixed in the top of fixed limiting frame (3) by support rod (5), the both sides of fixed limiting frame (3) and mobile limiting frame (4) are limiting plate (10), first telescopic cylinder (7) is fixed on the outer side face of two limiting plates (10) upper portion each, inflation mechanism (8) is fixed in the telescopic end of first telescopic cylinder (7), the inner side face of two inflation mechanisms (8) is fixed second telescopic cylinder (15), lifting mechanism (9) is fixed in the telescopic end of second telescopic cylinder (15), inflation mechanism (8) is communicated with external air source, electromagnetic valve I is connected on the pipeline of communication, electromagnetic valve I is electrically connected with controller (6), the end of rack (1) both sides each fixed one button mounting block (16), button mounting block (16) is installed with inflation button (11), closing button (12) and start button (13), inflation button (11), closing button (12) and start button (13) are all connected to controller (6), first telescopic cylinder (7) and second telescopic cylinder (15) are electrically connected with controller (6).

2. The device for detecting air tightness of a ceramic flat sheet membrane module pack according to claim 1, wherein The rack (1) is provided with double-channel sliding grooves (14) along the length direction, and the top and bottom surfaces of the fixed limiting frame (3) and the mobile limiting frame (4) are provided with sliding blocks (41) which are slidably connected in the sliding grooves (14).

3. The device for detecting the air tightness of a ceramic flat sheet membrane module assembly according to claim 2, wherein The lifting mechanism (9) is provided with a guide reinforcing rod (93) which is slidably connected on the limiting plate (10).

4. The device for detecting air tightness of a ceramic flat sheet membrane module pack according to claim 1, wherein The inflation mechanism (8) comprises an inflation frame (82), an inflation air inlet (81) and an inflation air outlet (84), the inflation frame (82) is a hollow structure, the inflation air inlet (81) is arranged on the top of the inflation frame (82), the inflation air outlet (84) is arranged on the outer side surface of the lower part of the inflation frame (82), and a hole channel identification sensor (85) is arranged at the inflation air outlet (84).

5. The device for detecting the air tightness of a ceramic flat sheet membrane module according to claim 4, wherein An annular sealing head (83) is arranged at the periphery of the inflation air outlet (84) of the inflation frame (82).

6. The device for detecting air tightness of a ceramic flat sheet membrane module pack according to claim 5, wherein A pressure sensor (86) is arranged at the inflation air outlet (84).

7. The device for detecting air tightness of a ceramic flat sheet membrane module pack according to claim 3, wherein The lifting mechanism (9) comprises a lifting frame (91), and the lifting hook (92) is integrally connected to the lower part of the lifting frame (91).

8. The device for detecting air tightness of a ceramic flat sheet membrane module pack according to claim 1, wherein The inner side of the lower part of the plate body (101) of the limiting plate (10) is connected with an antiskid pad (102) through a screw (103).

9. A method of detecting air tightness of a ceramic flat sheet membrane module, characterized by, The ceramic flat sheet membrane group air tightness detection device of claim 6 comprises the following steps: Step 1: Start the second telescopic cylinder (15) to fix the assembled ceramic flat sheet membrane module through the lifting mechanism (9) and the limiting frame (10), and then hoist the assembled ceramic flat sheet membrane module and the detection device into the detection tank through the lifting disc (2); Step 2: Automatically identify the inflation channel of the ceramic flat sheet membrane module through the hole recognition sensor (85) on the inflation mechanism (8) and accurately position the inflation channel; Step 3: Start the first telescopic cylinder (7) to seal the positioned inflation channel through the annular sealing head (83); Step 4: Fill the gas in the external gas source into the inflation channel through the inflation mechanism (8), and monitor the gas pressure change by using the pressure sensor (86), and determine whether the air tightness of the ceramic flat sheet membrane module is qualified according to the gas pressure change and the human observation of the bubble situation in the tank by the controller (6); Step 5: After the detection is completed, retract the first telescopic cylinder (7) to remove the annular sealing head (83) from the inflation channel, discharge the gas in the inflation channel, and then hoist the ceramic flat sheet membrane module away from the detection tank.

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