A membrane box cleaning device and cleaning method without disassembly

Abstract

The present invention provides a disassembly-free membrane box cleaning device and a cleaning method thereof. The cleaning device includes a cleaning component and a driving component. The cleaning component includes a cleaning box, a water storage tank, and a cleaning pipe. The starting end of the cleaning pipe is arranged in the water storage tank, and the end of the cleaning pipe is connected with a first water spraying pipe and a second water spraying pipe. The cross-sectional sizes of the two water spraying pipes are both smaller than the distance between any adjacent diaphragms. A plurality of first water spraying holes are arranged on the side wall of the first water spraying pipe, and a plurality of second water spraying holes are arranged at the end of the second water spraying pipe. The aperture of the first water spraying holes is larger than that of the second water spraying holes. The driving component includes a guide rail and a power component. The power component is connected with the ends of the first water spraying pipe and the second water spraying pipe, and drives the ends of the first water spraying pipe and the second water spraying pipe to move up and down in the guide rail so as to clean a plurality of diaphragms. By driving the two water spraying pipes to move up and down through the power component, the diaphragms in the membrane box can be cleaned without being removed, greatly reducing the cleaning time and improving the cleaning efficiency.

Description

Technical Field

[0001] The present invention relates to the field of bellows cleaning, and particularly to a bellows cleaning device and a cleaning method without disassembly. Background Art

[0002] With the development of society, the sewage generated by people in daily production and life has increased rapidly. New substances are mixed into the water, or due to changes in external conditions, the water deteriorates and can no longer maintain its original use function. In particular, water pollution caused by industry is the most serious, which contains a large number of pollutants, has a complex composition, and is more difficult to treat.

[0003] As one of the commonly used technologies in the field of sewage treatment, membrane separation technology has become increasingly mature in the field of sewage treatment. However, with the large-scale application of membrane separation technology, problems such as membrane fouling and complex cleaning have become the main difficulties encountered in the application process of membrane technology. As an important component in the membrane separation technology of sewage treatment, how to quickly and fully automate the cleaning of membrane modules has become an urgent problem to be solved in the popularization and application of this technology.

[0004] At present, after the conventional membrane module is fouled, it needs to be cleaned offline, that is, the membrane sheets in the membrane module are disassembled one by one for cleaning, and then the membrane sheets are reinstalled one by one after being cleaned. Due to the need for frequent manual disassembly and assembly of membrane sheets during the operation process, the cleaning efficiency of membrane sheets is low and the workload is large. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a bellows cleaning device and a cleaning method without disassembly to solve the problems of low cleaning efficiency and large workload of membrane sheets in the prior art.

[0006] The first aspect of the present invention provides a bellows cleaning device without disassembly for cleaning a plurality of membrane sheets in a bellows, including a cleaning component and a driving component. The cleaning component includes a cleaning tank, a water storage tank, and a cleaning pipe. The starting end of the cleaning pipe is arranged in the water storage tank, and the end of the cleaning pipe is connected with a first water spray pipe and a second water spray pipe arranged below the first water spray pipe. The cross-sectional dimensions of the first water spray pipe and the second water spray pipe are both smaller than the distance between any adjacent membrane sheets. A plurality of first water spray holes are arranged on the side wall of the first water spray pipe, and a plurality of second water spray holes are arranged at the end of the second water spray pipe. The aperture of the first water spray holes is larger than the aperture of the second water spray holes. The driving component includes a guide rail and a power component. The power component is connected with the first water spray pipe and the second water spray pipe, and drives the ends of the first water spray pipe and the second water spray pipe to move up and down along the guide rail to clean the plurality of membrane sheets.

[0007] The beneficial effects of the present invention are as follows: The present invention provides a non-detachable membrane box cleaning device. By connecting a first water spray pipe and a second water spray pipe to the end of the cleaning pipe, the cross-sectional dimensions of both the first water spray pipe and the second water spray pipe are smaller than the dimension between any two adjacent membranes. A number of first water spray holes are provided on the side wall of the first membrane. When cleaning a number of membranes arranged in the membrane box, the first water spray pipe is placed between the membranes, and the cleaning of the membranes can be completed without disassembling the membranes one by one, greatly reducing the cleaning time of the membranes and improving the cleaning efficiency. At the end of the second water spray pipe, there are second water spray holes, and the aperture of the second water spray holes is smaller than that of the second water spray holes, so that the water pressure sprayed from the second water spray holes is greater. Further, the second water spray holes are arranged at the end of the second water spray pipe. When there are obstacles such as blocky sludge between the membranes, the spraying direction of the second water spray pipe is perpendicular to the obstacles, which is more conducive to flushing them away. Still further, by arranging a power component to be connected to the first water spray pipe and the second water spray pipe to drive the first water spray pipe and the second water spray pipe to move up and down, the entire surface of the membranes can be cleaned.

[0008] Preferably, the non-detachable membrane box cleaning device further includes an obstacle sensor and a controller. The obstacle sensor is arranged on the first water spray pipe. The obstacle sensor is used to detect whether there are obstacles between a number of the membranes, and the controller is used to control the operation of the first water spray pipe and the second water spray pipe according to the detection result of the obstacle sensor.

[0009] Preferably, a first check valve is arranged at the water inlet of the first water spray pipe, and a second check valve is arranged at the water inlet of the second water spray pipe. When the obstacle sensor detects that there are obstacles between a number of the membranes, the controller controls the first check valve to close and the second check valve to open.

[0010] Preferably, the second water spray pipe is of a telescopic structure, and the controller is further used to control the telescopic movement of the second water spray pipe according to the detection result of the obstacle sensor.

[0011] Preferably, a sewage discharge port is arranged at the bottom of the cleaning box, and the bottom of the cleaning box is inclined towards the sewage discharge port.

[0012] Preferably, the sewage discharge port is communicated with a membrane bioreactor. The membrane bioreactor can be used to treat the sewage for cleaning the membranes, and the water outlet end of the membrane bioreactor is communicated with the water inlet end of the water storage tank.

[0013] Preferably, the end of the cleaning pipe is connected to a water collecting pipe. A number of water outlet holes are arranged on the side wall of the water collecting pipe along the axis of the water collecting pipe. A number of the water outlet holes are respectively connected to a number of the first water spray pipes and the second water spray pipes. The number of a number of the first water spray pipes and the second water spray pipes is one more than the number of a number of the membranes.

[0014] In the second aspect of the present invention, a method for cleaning a diaphragm box using the above-mentioned non-detachable diaphragm box cleaning device is provided, including the following steps:

[0015] Step S10: Hoist the diaphragm box into the cleaning box;

[0016] Step S20: Connect the cleaning pipe to the first spray pipe and the second spray pipe, and place the first spray pipe and the second spray pipe between several diaphragms;

[0017] Step S30: Through the power component, pre-position the first spray pipe and the second spray pipe above several diaphragms. The cleaning pipe conveys cleaning water into the first spray pipe and the second spray pipe. The power component drives the first spray pipe and the second spray pipe to move up and down to clean several diaphragms from top to bottom;

[0018] Step S40: Drain the cleaning sewage in the cleaning box, inject a medicament soaking solution into the cleaning box, and the height of the injected medicament soaking solution is greater than the height of the diaphragms;

[0019] Step S50: After soaking for a preset time, drain the medicament soaking solution in the cleaning box, and then repeat the cleaning operations of the above steps S10 to S30.

[0020] Preferably, the step S30 specifically includes:

[0021] Step S31: The obstacle sensor detection device detects whether there is an obstacle between several diaphragms. If so, execute step S32;

[0022] Step S32: The controller controls the power component to pause, the first spray pipe stops spraying water, and the second spray pipe starts spraying water to perform high-pressure flushing on the obstacle until the obstacle is completely washed away;

[0023] Step S33: After the obstacle sensor detects that there is no obstacle between the diaphragms, the first spray pipe resumes spraying water and the second spray pipe stops spraying water.

[0024] Step S34: Restart the power component, and the power component drives the first spray pipe and the second spray pipe to continue moving to continue cleaning several diaphragms.

[0025] Preferably, the preset time is 2 - 6h.

[0026] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Brief Description of the Drawings

[0027] Figure 1 Schematic structural diagram of the first embodiment of the detachable membrane box cleaning device provided by the present invention;

[0028] Figure 2 Enlarged schematic diagram at position A of the first embodiment of the detachable membrane box cleaning device provided by the present invention;

[0029] Figure 3 Schematic structural diagram of the cleaning box of the first embodiment of the detachable membrane box cleaning device provided by the present invention;

[0030] Figure 4 Schematic structural diagram of the membrane box of the first embodiment of the detachable membrane box cleaning device provided by the present invention;

[0031] Figure 5 Enlarged schematic diagram at position B of the first embodiment of the detachable membrane box cleaning device provided by the present invention;

[0032] Figure 6 Schematic structural diagram of the water collecting pipe connection of the first embodiment of the detachable membrane box cleaning device provided by the present invention;

[0033] Figure 7 Schematic structural diagram of the first water spraying pipe of the first embodiment of the detachable membrane box cleaning device provided by the present invention;

[0034] Figure 8 Schematic structural diagram of the second water spraying pipe of the first embodiment of the detachable membrane box cleaning device provided by the present invention;

[0035] Figure 9 Schematic structural diagram of the water collecting pipe of the first embodiment of the detachable membrane box cleaning device provided by the present invention;

[0036] Figure 10 Flow chart of the membrane box cleaning method of the second embodiment provided by the present invention;

[0037] Figure 11 Flow chart of the membrane box flushing of the second embodiment provided by the present invention;

[0038] Description of the main element symbols:

[0039] bellows 10 diaphragm 11 cleaning tank 21 blowdown port 211 water storage tank 22 water pump 221 cleaning pipe 23 first water spray pipe 24 first water spray hole 241 first check valve 242 second water spray pipe 25 second water spray hole 251 second check valve 252 collecting pipe 26 collecting pipe water outlet 261 guide rail 31 power unit 32 obstacle sensor 40

[0040] The following specific embodiments will further illustrate the present invention in conjunction with the above drawings. Specific Embodiments

[0041] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant attached drawings. Several embodiments of the present invention are shown in the attached drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0042] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0044] Specifically, such as Figures 1 to 9As shown in the figure, a non-detachable membrane box cleaning device provided by the first embodiment of the present invention is used to clean a plurality of diaphragms 11 in the membrane box 10, and includes a cleaning component and a driving component. Specifically, the cleaning component includes a cleaning box 21, a water storage tank 22, and a cleaning pipe 23. The starting end of the cleaning pipe 23 is arranged in the water storage tank 22. Specifically, a water pump 221 is provided in the water storage tank 22, and the water pump 221 is connected to the starting end of the cleaning pipe 23. The end of the cleaning pipe 23 is connected to a first water spray pipe 24 and a second water spray pipe 25 arranged below the first water spray pipe 24. The cross-sectional dimensions of the first water spray pipe 24 and the second water spray pipe 25 are smaller than the distance between any two adjacent diaphragms 11, so that the first water spray pipe 24 and the second water spray pipe 25 can be placed between the diaphragms 11. A plurality of first water spray holes 241 are provided on the side wall of the first water spray pipe 24. By providing the first water spray holes on the side wall of the first water spray pipe 24, the water in the first water spray pipe 24 can be sprayed onto the diaphragm through the first water spray holes 241 to clean the diaphragm. A plurality of second water spray holes 251 are provided at the end of the second water spray pipe 25. The aperture of the first water spray holes 241 is larger than the aperture of the second water spray holes 251. By providing the second water spray holes 251 at the end of the second water spray pipe 25, the spraying direction of the second water spray holes 251 can be adjusted, which is beneficial to flushing obstacles such as blocky sludge in the diaphragm 11. By setting the aperture of the second water spray holes 251 to be smaller than the aperture of the first water spray holes 241, the spraying pressure can be increased and the flushing efficiency can be improved. Further, the driving component includes a guide rail 31 and a power component 32. The power component 32 is connected to the ends of the first water spray pipe 24 and the second water spray pipe 25, and drives the ends of the first water spray pipe 24 and the second water spray pipe 25 to move up and down along the guide rail 31, and then drives the first water spray pipe 24 and the second water spray pipe 25 to move up and down in the gap between the diaphragms to clean a plurality of diaphragms 11.

[0045] Further, in this embodiment, the non-detachable membrane box cleaning device further includes an obstacle sensor 40 and a controller (not shown in the figure). The obstacle sensor 40 is arranged below the first water spray pipe 24 and is used to detect whether there are obstacles such as massive sludge between the diaphragms 11. The controller controls the working states of the first water spray pipe 24 and the second water spray pipe 25 based on the detection result of the obstacle sensor 40. Specifically, a first check valve 242 is provided at the water inlet of the first water spray pipe 24, and a second check valve 252 is provided at the water inlet of the second water spray pipe 25. The controller controls the opening and closing of the first check valve 242 and the second check valve 252 based on the detection result of the obstacle sensor 40. Specifically, when the obstacle sensor 40 detects that there are obstacles such as massive sludge between the diaphragms 11, the controller controls the first check valve 242 to close, the second check valve 252 to open, and at the same time the power component stops. The cleaning water is sprayed out through the second water spray holes 251 of the second water spray pipe 25 to disperse the obstacles; when the obstacle sensor 40 detects that there are no obstacles such as massive sludge between the diaphragms 11, the controller controls the first check valve 242 to open, the second check valve 252 to close, and at the same time the power component restarts. The first water spray pipe 24 moves up and down in the gap between the diaphragms 11 to clean the diaphragms 11.

[0046] In addition, in order to improve the cleaning efficiency of the second water spray pipe 25 for obstacles, in this embodiment, as Figure 7 shown, the second water spray pipe 25 is a telescopic structure. By controlling the telescoping of the second water spray pipe 25 through the controller, when the first water spray pipe 24 sprays water normally to clean the diaphragms 11, the second water spray pipe 25 shrinks. When it is detected that there are obstacles between the diaphragms, the second water spray pipe 25 extends, so that the end of the second water spray pipe 25 is close to the obstacles for close-range flushing to improve the flushing efficiency.

[0047] Further, in this embodiment, as Figure 3 shown, a sewage outlet 211 is provided at the bottom of the cleaning tank 21, and the bottom of the cleaning tank 21 is inclined towards the sewage outlet 211. The sewage generated by cleaning the diaphragms 11 and the sludge washed down can be discharged and collected through the sewage outlet. Specifically, in this embodiment, the sewage outlet 211 is communicated with a membrane bioreactor. The membrane bioreactor is used to treat the sewage generated during the cleaning process. The water outlet of the membrane bioreactor is communicated with the water inlet of the water storage tank 22. On the one hand, it prevents the outflow of sewage and causes secondary pollution, and on the other hand, it can also realize the recycling of water resources, save water, and the membrane box cleaning process is not restricted by water sources such as tap water.

[0048] In addition, in order to improve the cleaning efficiency of the diaphragms 11, a combination pipe of a plurality of first water spray pipes 24 and second water spray pipes 25 can be arranged at the same time. Specifically, in this implementation, the end of the cleaning pipe 23 is communicated with the water inlet of a water collecting pipe 26, as Figure 9As shown in the figure, a plurality of water outlet pipes 261 are axially arranged on the side wall of the water collecting pipe 26. A combined pipe of a first water spraying pipe 24 and a second water spraying pipe 25 is provided at each water outlet of the water collecting pipe 26. The number of water outlets of the water collecting pipe 26 is one more than the number of diaphragms 11. Specifically, in this embodiment, the power component 32 is connected to the water collecting pipe 26. The power component 32 drives the water collecting pipe 26 to move up and down, thereby driving the first water spraying pipe 24 and the second water spraying pipe 25 to move up and down between the diaphragms 11 to clean the diaphragms 11.

[0049] The present invention provides a cleaning device for a membrane box without disassembly. By arranging the first water spraying pipe 24 and the second water spraying pipe 25 between the diaphragms 11, the diaphragms are cleaned by the first water spraying pipe 24, and obstacles such as blocky sludge between the diaphragms 11 are flushed by the second water spraying pipe 25, improving the cleaning efficiency of the membrane box. Further, the first water spraying pipe 24 and the second water spraying pipe are driven by a driving component to move up and down to clean the whole diaphragm. In addition, the opening states of the valves on the first water spraying pipe 24 and the second water spraying pipe 25 are controlled by an obstacle sensor 40 and a controller. Still further, a sewage outlet is arranged at the bottom of the cleaning box, and the sewage outlet is communicated with a membrane bioreactor. The membrane bioreactor treats the sewage after cleaning, and the water outlet of the membrane bioreactor is communicated with a water storage tank 22. The treated sewage is used for cleaning, realizing the recycling of water resources on the one hand and solving the problem of lack of tap water in remote areas on the other hand.

[0050] The second embodiment of the present invention provides a method for cleaning a membrane box by using the cleaning device for a membrane box without disassembly provided in the first embodiment as follows Figure 10 As shown in the figure, the membrane box cleaning method provided in the second embodiment of the present invention includes steps S10 - S50.

[0051] Step S10, hoist the membrane box into the cleaning box;

[0052] The membrane box is generally fixed by a frame. In the integrated equipment of large sewage treatment plants, the overall volume of the membrane box is large. During cleaning, it is generally hoisted to a preset cleaning position by a cleaning vehicle with a jib. Specifically, in this embodiment, the sewage treatment scale of the integrated sewage treatment equipment in the sewage treatment plant is 200t / d, treating conventional domestic sewage, using a hollow fiber membrane module to realize the separation of mud and water, and the influent water quality is COD 150 - 250mg / L, ammonia nitrogen: 15 - 30mg / L, total phosphorus: 2 - 5mg / L.

[0053] Step S20, connect the cleaning pipe with the first water spraying pipe and the second water spraying pipe, and place the first water spraying pipe and the second water spraying pipe between a plurality of diaphragms;

[0054] After the diaphragm box is hoisted in place, the water pipes are connected. One end of the cleaning pipe is connected to a water pump and is located in the water storage tank, and the other end is connected to the first spray pipe and the second spray pipe. The first spray pipe and the second spray pipe form a combined cleaning pipe, and the combined pipe is positioned in the gap of the diaphragm to be cleaned.

[0055] Step 30: Pre-position the first spray pipe and the second spray pipe above a number of diaphragms through the power component. The cleaning pipe transports the cleaning water into the first spray pipe and the second spray pipe, and the power component drives the first spray pipe and the second spray pipe to move up and down to clean the number of diaphragms from top to bottom.

[0056] First, position the combined pipe composed of the first spray pipe and the second spray pipe above the gap of the diaphragm through the power component. The cleaning pipe pumps the cleaning water from the water storage tank through the water pump and transmits it to the first spray pipe and the second spray pipe. The power component drives the first spray pipe and the second spray pipe to move up and down in the gap between the diaphragms, and starts to clean the surface of the diaphragm from the upper end of the diaphragm.

[0057] Furthermore, the non-disassembling diaphragm box cleaning device further includes an obstacle sensor and a controller. As Figure 11 shown, step 30 specifically includes steps S31 - S34;

[0058] S31: The obstacle sensor detection device detects whether there is an obstacle between a number of diaphragms. If so, execute step S32;

[0059] In the non-disassembling diaphragm box cleaning device, there is an obstacle sensor and a controller. The obstacle sensor can detect whether there are obstacles such as blocky sludge between the gaps of the diaphragms. If not, the power component continuously drives the combined pipe to move up and down, and the first spray pipe cleans the diaphragms. If so, perform step S32.

[0060] Step S32: The controller controls the power component to pause, the first spray pipe stops spraying water, and the second spray pipe starts spraying water to perform high-pressure flushing on the obstacle until the obstacle is completely washed away;

[0061] Specifically, the first spray pipe and the second spray pipe work alternately. The second spray pipe mainly disperses obstacles such as blocky sludge between the diaphragms to improve the cleaning effect of the diaphragms.

[0062] Step S33: After the obstacle sensor detects that there is no obstacle between the diaphragms, the first spray pipe resumes spraying water, and the second spray pipe stops spraying water.

[0063] Step S34: Restart the power component, and the power component drives the first spray pipe and the second spray pipe to continue moving to continue cleaning a number of diaphragms.

[0064] Step 40: Drain the cleaning wastewater in the cleaning tank, and inject a medicament soaking solution into the cleaning tank, with the height of the injected medicament soaking solution being greater than the height of the diaphragm.

[0065] Since the diaphragm has been in the separated mud - water mixture for a long time, some stubborn impurities may adhere to the inside and outside of the membrane pores. Simple flushing with clean water may not be able to wash off all the impurities. Therefore, chemical reagents are often needed for further cleaning. First, drain the wastewater and sludge after cleaning in step 3 in the cleaning tank, and then inject a medicament soaking solution into the cleaning tank, with the height of the injected medicament soaking solution being greater than the height of the diaphragm, so that the diaphragm is completely immersed in the medicament soaking solution.

[0066] Step 50: After soaking for a preset time, drain the medicament soaking solution in the cleaning tank, and then repeat the cleaning operations of the above steps 10 to 30.

[0067] The preset soaking time of the membrane box in the medicament soaking solution is 2 - 6h. Specifically, in this embodiment, the preset soaking time is 3h.

[0068] The overall cleaning time of the membrane box in the embodiment of the present invention is about 3 - 7h. As a comparison, the cleaning time of the conventional manual cleaning of the membrane box is 9 - 13h. The membrane flux of the membrane box in the embodiment of the present invention is restored from 0.25 - 0.3 (m 3 / (m 2 ·d)) to 0.45 - 0.5 (m 3 / (m 2 ·d)), and the membrane pressure is restored from - 0.065~ - 0.045MPa to - 0.006~ - 0.01MPa. Specifically, in this embodiment, the overall cleaning time of the membrane box is 4h, and the membrane flux before and after cleaning is restored from 0.27 (m 3 / (m 2 ·d)) to 0.47 (m 3 / (m 2 ·d)), and the membrane pressure before and after cleaning is restored from - 0.06MPa to - 0.0008MPa.

[0069] It should be noted that the above implementation process is only to illustrate the feasibility of the present application. However, this does not mean that the dismount - free membrane box cleaning device and cleaning method of the present application only have the above - mentioned several implementation processes. On the contrary, as long as the dismount - free membrane box cleaning device and cleaning method of the present application can be implemented, they can be included in the feasible implementation schemes of the present application. In addition, the device part of the dismount - free membrane box cleaning device in the embodiment of the present invention corresponds to the method part of the membrane box cleaning method in the embodiment of the present invention, and their specific implementation details are also the same, so they will not be elaborated here.

[0070] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0071] The above embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A non-detachable membrane box cleaning device for cleaning a plurality of diaphragms in a membrane box, characterized in that, It includes a cleaning component and a driving component. The cleaning component includes a cleaning tank, a water storage tank, and a cleaning pipe. The starting end of the cleaning pipe is arranged in the water storage tank. The end of the cleaning pipe is connected with a first water spraying pipe and a second water spraying pipe arranged below the first water spraying pipe. The cross-sectional sizes of the first water spraying pipe and the second water spraying pipe are both smaller than the distance between any adjacent diaphragms. A number of first water spraying holes are arranged on the side wall of the first water spraying pipe, and a number of second water spraying holes are arranged at the end of the second water spraying pipe. The aperture of the first water spraying holes is larger than that of the second water spraying holes. The driving component includes a guide rail and a power component. The power component is connected with the ends of the first water spraying pipe and the second water spraying pipe, and drives the ends of the first water spraying pipe and the second water spraying pipe to move up and down along the guide rail to clean a number of the diaphragms. The diaphragm box cleaning device without disassembly further includes an obstacle sensor and a controller. The obstacle sensor is arranged on the first water spraying pipe. The obstacle sensor is used to detect whether there are obstacles between a number of the diaphragms. The controller is used to control the operation of the first water spraying pipe and the second water spraying pipe according to the detection result of the obstacle sensor. The end of the cleaning pipe is connected with a water collecting pipe. A number of water outlet ports are arranged on the side wall of the water collecting pipe along the axis of the water collecting pipe. A number of the water outlet ports are respectively connected with a number of the first water spraying pipes and the second water spraying pipes. The number of a number of the first water spraying pipes and the second water spraying pipes is one more than the number of a number of the diaphragms.

2. The non-detachable diaphragm box cleaning device according to claim 1, wherein A first check valve is arranged at the water inlet of the first water spraying pipe, and a second check valve is arranged at the water inlet of the second water spraying pipe. When the obstacle sensor detects that there are obstacles between a number of the diaphragms, the controller controls the first check valve to close and the second check valve to open.

3. The non-detachable diaphragm box cleaning device according to claim 1, wherein, The second water spraying pipe is of a telescopic structure. The controller is also used to control the telescoping of the second water spraying pipe according to the detection result of the obstacle sensor.

4. The non-detachable membrane box cleaning device according to claim 1, characterized in that, A sewage discharge port is arranged at the bottom of the cleaning tank. The bottom of the cleaning tank is inclined towards the sewage discharge port.

5. The non-detachable diaphragm box cleaning device according to claim 4, wherein, The sewage discharge port is communicated with a membrane bioreactor. The membrane bioreactor is used to treat the sewage for cleaning the diaphragms. The water outlet end of the membrane bioreactor is communicated with the water inlet end of the water storage tank.

6. A method for cleaning a diaphragm box using the diaphragm box cleaning device according to any one of claims 1-5, characterized in that, It includes the following steps: Step 10: Hoist the diaphragm box into the cleaning tank. Step 20: Connect the cleaning pipe with the first water spraying pipe and the second water spraying pipe, and place the first water spraying pipe and the second water spraying pipe between a number of the diaphragms. Step 30: Pre-position the first water spraying pipe and the second water spraying pipe above a number of the diaphragms through the power component. The cleaning pipe conveys cleaning water into the first water spraying pipe and the second water spraying pipe. The power component drives the first water spraying pipe and the second water spraying pipe to move up and down to clean a number of the diaphragms from top to bottom. Step 40: Drain the cleaning sewage in the cleaning tank, inject a medicament soaking solution into the cleaning tank, and the height of the injected medicament soaking solution is greater than the height of the diaphragms. Step 50, after soaking for a preset time, drain the chemical soaking solution in the cleaning tank, and then repeat the cleaning operations of the above steps 10 to 30; The non-detachable membrane box cleaning device further includes an obstacle sensor and a controller. Step 30 specifically includes: Step S31, the obstacle sensor detection device detects whether there are obstacles between several of the membranes. If so, step S32 is executed; Step S32, the controller controls the power component to pause, the first water spray pipe stops spraying water, and the second water spray pipe starts spraying water to perform high-pressure flushing on the obstacle until the obstacle is completely dispersed; Step S33, after the obstacle sensor detects that there are no obstacles between the membranes, the first water spray pipe resumes spraying water, and the second water spray pipe stops spraying water; Step S34, the power component restarts, and the power component drives the first water spray pipe and the second water spray pipe to continue moving to continue cleaning several of the membranes.

7. The bellows cleaning method according to claim 6, characterized in that, The preset time is 2 - 6h.

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