CN218931900U - Integrated high-efficiency sewage treatment device - Google Patents

Abstract

The utility model provides an integrated high-efficiency sewage processor, which relates to the technical field of sewage treatment and comprises an integrated box body, wherein an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank, a clean water tank and a device room are distributed in the integrated box body, an aeration pipe network is arranged at the bottom of the aerobic tank, combined filler is distributed above the aeration pipe network in the aerobic tank, two cone-shaped sludge hoppers are arranged at the bottom of the sedimentation tank, inclined plate filler is arranged above the sludge hoppers, and a water outlet weir groove is arranged at the water outlet side of the sedimentation tank.

Description

Integrated high-efficiency sewage treatment device

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to an integrated high-efficiency sewage treatment device.

Background

The sewage treatment technology is generally divided into physical, chemical, biological and other main methods, wherein an activated sludge method and a biological membrane method in the traditional biological treatment method are widely applied treatment technologies. The core treatment equipment of the traditional activated sludge method comprises an aeration tank, an activated sludge reflux system, an aeration system and other main systems. The core treatment equipment of the biomembrane method mainly comprises a carrier for microorganism growth and aggregation, namely a filler;

with the continuous improvement of sewage treatment technology, the traditional activated sludge method and the biomembrane method are used in combination at present.

The aeration tank in the activated sludge process and the filler in the biomembrane process are used as core treatment equipment, compressed air is firstly fed into the mixed liquor of the aeration tank in the form of tiny bubbles through an air diffusion device, microorganisms are attached to the surface of the filler to form a biomembrane, so that the mixed liquor flows through the surface of the filler at a certain flow rate, organic pollutants in sewage are degraded and removed by the microorganisms in the biomembrane, the sewage is purified, the activated sludge microorganisms are multiplied and proliferated, the activated sludge body is increased, and on the premise of urban land in size and gold, how to utilize an integrated space structure to finish high-efficiency sewage treatment becomes a problem to be solved urgently;

for example, an MBR integrated sewage treatment device (publication number CN 209797579U) disclosed in chinese patent is mainly aimed at rural domestic sewage treatment, but aims at rural domestic sewage, and has the characteristics of relatively dispersed sewage source, unstable sewage discharge and relatively low management level, however, although the MBR membrane can ensure that sewage stably reaches standard during initial operation, the MBR membrane is easy to generate problems of blockage, wire breakage and the like along with the extension of operation time, once the part of process is problematic, system paralysis is easy to be caused, and the treatment and coping capacities of the sewage treatment technology in rural areas are relatively weak, so that the overall management is not facilitated;

therefore, by the characteristic that the rural area land area is looser than the urban area land area, the organic combination of an activated sludge method and a biomembrane method can be adopted, and the operation difficulty is relatively low on the basis of ensuring that the effluent reaches the standard, so that the system is not easy to collapse and the like.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an integrated high-efficiency sewage treatment device, which solves the problems raised by the background technology.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the integrated high-efficiency sewage processor comprises an integrated box body, wherein an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank, a clean water tank and equipment rooms are sequentially distributed in the integrated box body;

the anaerobic tank is positioned at the corner of one side of the integrated tank body, the anoxic tank is adjacently arranged at the other side of the anaerobic tank, a first reflux pump is arranged at the bottom of the water outlet of the anoxic tank, a first reflux pipe is arranged between the anaerobic tank and the anoxic tank, one end of the first reflux pipe is communicated with the first reflux pump in the anoxic tank, and the other end of the first reflux pipe is communicated with the inside of the anaerobic tank;

the aerobic tank is adjacently arranged on the other side of the anoxic tank, an aeration pipe network is arranged at the bottom of the aerobic tank, and combined filler is distributed above the aeration pipe network in the aerobic tank;

the sedimentation tank is adjacently arranged on the other side of the aerobic tank, two cone-shaped sludge hoppers are arranged at the bottom of the sedimentation tank, inclined plate fillers which are fully distributed on the horizontal section are arranged above the sludge hoppers, and a water outlet weir groove is formed in the water outlet side of the sedimentation tank above the inclined plate fillers.

As a further technical scheme of the utility model, the upper end of one side of the integrated box body is provided with a water inlet pipe communicated with the inside of the anaerobic tank, and the bottom of the water inlet part of the anaerobic tank is provided with a first diving impeller;

a first communication pipe which is communicated is arranged between the anaerobic tank and the anoxic tank, and a second submerged impeller is arranged at the bottom of the water inlet of the anoxic tank.

As a further technical scheme of the utility model, a second communicating pipe which is communicated is arranged between the anoxic tank and the aerobic tank, a second reflux pump is arranged at the bottom of the water outlet of the aerobic tank, a second reflux pipe is arranged between the anoxic tank and the aerobic tank, one end of the second reflux pipe is communicated with the second reflux pump at the bottom end inside the aerobic tank, and the other end of the second reflux pipe is communicated with the inside of the anoxic tank.

As a further technical scheme of the utility model, the aeration pipe network is communicated with a gas pipe extending into the equipment room, the bottom of the aeration pipe network is connected with a fixed bracket, the fixed bracket is arranged at the bottom of the aerobic tank, a plurality of aeration plates are distributed on the aeration pipe network, and the aeration plates are connected with the aeration pipe network through threads.

As a further technical scheme of the utility model, a third communicating pipe is arranged between the sedimentation tank and the aerobic tank, the cross section of the inclined plate filler is hexagonal honeycomb, the inner side plate of the water outlet weir groove is a closed weir plate, and the outer side plate of the water outlet weir groove is serrated.

As a further technical scheme of the utility model, a first sludge pump and a second sludge pump are respectively arranged at the bottoms of the inner sides of the two sludge hoppers, the output ends of the first sludge pump and the second sludge pump are jointly communicated with a sludge pipe, a third return pipe is arranged between the sedimentation tank and the anoxic tank, one end of the third return pipe is communicated with the sludge pipe, the other end of the third return pipe is communicated with the interior of the anoxic tank, a sludge discharge pipe is branched in the sedimentation tank by the third return pipe, and a valve is arranged on the sludge discharge pipe.

As a further technical scheme of the utility model, the clean water tank and the equipment room are arranged on the other side of the sedimentation tank in parallel, the equipment room is positioned at the other corner of the integrated box body, an aeration fan, a sand filter tank, an ultraviolet sterilizer and an electric cabinet are arranged in the equipment room, and the aeration fan is communicated with an aeration pipe network through a gas pipe.

As a further technical scheme of the utility model, a fourth communicating pipe which is communicated with the sand filtering tank is arranged between the sand filtering tank and the sedimentation tank, one end of the fourth communicating pipe is communicated with the sand filtering tank, and the other end of the fourth communicating pipe penetrates through the sedimentation tank and is communicated with the inner side of the water outlet weir groove;

a fifth communicating pipe is arranged between the sand filtering tank and the ultraviolet sterilizer, a sixth communicating pipe is arranged between the ultraviolet sterilizer and the clean water tank, and a water outlet pipe extending to the outside of the integrated box body is further arranged on the clean water tank.

The utility model provides an integrated high-efficiency sewage processor, which has the following beneficial effects compared with the prior art:

1. the integrated high-efficiency sewage treatment device has the advantages that the integrated high-efficiency sewage treatment device is integrally an integrated structure box body, the occupied space is effectively saved, the manufacturing cost of equipment is saved, the treatment processes of sewage treatment are organically combined into a whole, the space of each independent treatment box body of sewage treatment is greatly saved, the compactness of the box body structure is improved, the pipeline connection among the treatment processes is saved, and the manufacturing cost of the independent box body is saved.

2. The design effectively reduces odor generation, the device can adopt different forms such as buried or overground, effectively reduces odor overflow in the sewage treatment process, improves sewage treatment efficiency, and in addition, the activated sludge method and the biomembrane method are organically combined, the activated sludge method, the biomembrane method, the filtration and the disinfection are integrated into a whole, so that the anaerobic-anoxic-aerobic coupling reactor is formed, the defects that the system is paralyzed, periodic backwashing is needed and the like due to high loss and easy blockage of membrane materials such as an MBR (membrane biological reactor) process are overcome, and the overall management technology of the design is low in difficulty, and is convenient for subsequent operation management.

3. The design adopts the modularized design, is convenient for construction and installation, adopts the modularized box body design, can adjust the number of modules according to the water treatment amount, and provides convenience for construction and installation.

Drawings

FIG. 1 is a schematic top view of an integrated high efficiency wastewater treatment plant;

FIG. 2 is a schematic plan view of the lower layer of the integrated high efficiency sewage treatment apparatus;

FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 1;

fig. 4 is a sectional view in the direction B-B of fig. 1.

In the figure: 1. an integrated box body; 2. an anaerobic tank; 3. an anoxic tank; 4. an aerobic tank; 5. a sedimentation tank; 6. a clean water tank; 7. the equipment room; 8. a water inlet pipe; 9. a first communication pipe; 10. a first return pipe; 11. a second communicating pipe; 12. a gas pipe; 13. an aeration pipe network; 14. a third communicating pipe; 15. a second return pipe; 16. a sludge pipe; 17. a third return pipe; 18. a mud pipe; 19. a water outlet weir groove; 20. a fourth communicating pipe; 21. a fifth communicating pipe; 22. a sixth communicating pipe; 23. a water outlet pipe; 24. an aeration fan; 25. a first diving flow impeller; 26. a second submersible flow impeller; 27. a first reflux pump; 28. an aeration disc; 29. a combined filler; 30. a second reflux pump; 31. a sloping plate filler; 32. a first sludge pump; 33. a second sludge pump; 34. a sand filtration tank; 35. an ultraviolet sterilizer; 36. and (5) a sludge bucket.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides an integrated efficient sewage treatment apparatus technical scheme: the integrated high-efficiency sewage treatment device comprises an integrated box body 1, wherein the integrated box body 1 is made of carbon steel or similar steel materials, the whole integrated box body 1 is spliced and fixed in a welding mode, the integrated box body 1 can be buried on the ground or underground, odor overflow in the sewage treatment process is effectively reduced, and an anaerobic tank 2, an anoxic tank 3, an aerobic tank 4, a sedimentation tank 5, a clean water tank 6 and an inter-device 7 are sequentially distributed in the integrated box body 1;

as shown in fig. 1 and 2, the anaerobic tank 2 is positioned at a corner of one side of the integrated tank 1, a water inlet pipe 8 communicated with the inside of the anaerobic tank 2 is arranged at the upper end of one side of the integrated tank 1, a first submerged impeller 25 is arranged at the bottom of the water inlet of the anaerobic tank 2, and the first submerged impeller 25 can play a certain role in stirring, so that sewage is ensured to be uniformly mixed in the anaerobic tank 2 and fully contacted and reacted with microorganisms;

as shown in fig. 1-3, the anoxic tank 3 is adjacently arranged at the other side of the anaerobic tank 2, a first communicating pipe 9 communicated between the anaerobic tank 2 and the anoxic tank 3 is arranged at the bottom of the water inlet of the anoxic tank 3, a second submerged flow impeller 26 is arranged at the bottom of the anoxic tank 3, the second submerged flow impeller 26 can play a certain stirring role in the anoxic tank 3, the sewage is ensured to be uniformly mixed in the anoxic tank so as to be fully contacted and reacted with microorganisms, a first reflux pump 27 is arranged at the bottom of the water outlet of the anoxic tank 3, a first reflux pipe 10 is arranged between the anaerobic tank 2 and the anoxic tank 3, one end of the first reflux pipe 10 is communicated with the first reflux pump 27 in the anoxic tank 3, and the other end of the first reflux pipe is communicated with the inside of the anaerobic tank 2, so that the reflux from the anoxic tank 3 to the anaerobic tank 2 is facilitated, the nitrate nitrogen concentration in the reflux liquid is effectively reduced, the influence of phosphorus release bacteria in the anaerobic tank 2 is weakened, and the effect of synchronous denitrification and dephosphorization is effectively realized;

as shown in fig. 1-3, the aerobic tank 4 is adjacently arranged at the other side of the anoxic tank 3, a second communicating pipe 11 communicated with the anoxic tank 3 is arranged between the anoxic tank 3 and the aerobic tank 4, a second reflux pump 30 is arranged at the bottom of the water outlet of the aerobic tank 4, a second reflux pipe 15 is arranged between the anoxic tank 3 and the aerobic tank 4, one end of the second reflux pipe 15 is communicated with the second reflux pump 30 at the bottom end inside the aerobic tank 4, and the other end of the second reflux pipe 15 is communicated with the inside of the anoxic tank 3, so that the reflux from the aerobic tank 4 to the anoxic tank 3 is convenient to completely separate the sludge denitrification from the mixed liquor denitrification, the possibility that nitrate enters the anaerobic tank 2 is further reduced, and the contradiction between phosphorus accumulating bacteria and nitrifying bacteria on sludge age in the synchronous denitrification and dephosphorization process can be solved;

as shown in fig. 2 and 3, an aeration pipe network 13 is installed at the bottom of the aerobic tank 4, a gas pipe 12 extending into the equipment room 7 is communicated with the aeration pipe network 13, a fixed bracket is connected to the bottom of the aeration pipe network 13, the fixed bracket is arranged at the bottom of the aerobic tank 4, a plurality of aeration disks 28 are distributed on the aeration pipe network 13, the aeration disks 28 are connected with the aeration pipe network 13 through threads, and oxygen can be uniformly conveyed into the aerobic tank 4 by utilizing the aeration pipe network 13, so that the aeration effect is stable; in addition, the combined filler 29 is distributed in the aerobic tank 4 above the aeration pipe network 13, which is beneficial to the aggregation of microorganisms on the surface of the combined filler to form a biological film, so that the sewage can be effectively removed by the microorganisms when the sewage flows through the combined filler 29;

as shown in fig. 1, 2 and 4, the sedimentation tank 5 is adjacently arranged at the other side of the aerobic tank 4, a third communicating pipe 14 is arranged between the sedimentation tank 5 and the aerobic tank 4, two cone-shaped sludge hoppers 36 are arranged at the bottom of the sedimentation tank 5, so that the sludge can slide down and be collected in the sludge hoppers 36, inclined plate fillers 31 which are fully distributed on the horizontal section are arranged above the sludge hoppers 36, the sedimentation tank is beneficial to having an efficient sedimentation effect in a small space and a short residence time, the sludge discharge problem is solved, the cross section of each inclined plate filler 31 is in a hexagonal honeycomb shape, the adsorption capacity on flocculates can be improved, and the sewage treatment efficiency is effectively improved;

as shown in fig. 1, the water outlet side of the sedimentation tank 5 above the inclined plate packing 31 is provided with a water outlet weir groove 19, the inner side plate of the water outlet weir groove 19 is a closed weir plate, the outer side plate of the water outlet weir groove 19 is in a zigzag shape, supernatant in the sedimentation tank 5 can be uniformly distributed and overflowed into the water outlet weir groove 19 conveniently, as shown in fig. 1 and 2, the bottoms of the inner sides of the two sludge hoppers 36 are respectively provided with a first sludge pump 32 and a second sludge pump 33, the output ends of the first sludge pump 32 and the second sludge pump 33 are jointly communicated with a sludge pipe 16, a third return pipe 17 is arranged between the sedimentation tank 5 and the anoxic tank 3, one end of the third return pipe 17 is communicated with the sludge pipe 16, the other end of the third return pipe 17 is communicated with the interior of the anoxic tank 3, the third return pipe 17 is utilized to conveniently provide external return flow from the sedimentation tank 5 to the anoxic tank 3, the sludge is partially returned, the front section of the anaerobic-anoxic-aerobic coupling reactor is supplemented with sludge concentration, and meanwhile, the impact load resistance capacity of the system is enhanced, the third return pipe 17 is provided with a valve 18 in the sedimentation tank 5, and the sludge pipe 18 is arranged on the sludge pipe 18, and the sludge pipe 18 is communicated with the outside.

As shown in fig. 1, the clean water tank 6 and the equipment room 7 are arranged on the other side of the sedimentation tank 5 in parallel, the equipment room 7 is positioned at the other corner of the integrated box body 1, an aeration fan 24, a sand filter tank 34, an ultraviolet sterilizer 35 and an electric cabinet are arranged in the equipment room 7, the aeration fan 24 is communicated with the aeration pipe network 13 through a gas pipe 12, and the aeration fan 24 is convenient to supply gas for the aeration pipe network 13, so that the aeration function in the aerobic tank 4 is realized.

As shown in fig. 1, a fourth communicating pipe 20 is arranged between the sand filter tank 34 and the sedimentation tank 5, one end of the fourth communicating pipe 20 is communicated with the sand filter tank 34, and the other end of the fourth communicating pipe penetrates through the sedimentation tank 5 and is communicated with the inner side of the water outlet weir groove 19, so that supernatant in the water outlet weir groove 19 conveniently flows into the sand filter tank 34 through the fourth communicating pipe 20, and fine particles in sewage are further filtered by the sand filter tank 34; a fifth communicating pipe 21 is arranged between the sand filter tank 34 and the ultraviolet sterilizer 35, filtered sewage enters the ultraviolet sterilizer 35 through the fifth communicating pipe 21 to be disinfected, the content of flora in the sewage is reduced, a sixth communicating pipe 22 is arranged between the ultraviolet sterilizer 35 and the clean water tank 6, a water outlet pipe 23 extending to the outside of the integrated box body 1 is further arranged on the clean water tank 6, and the disinfected sewage flows into the clean water tank 6 through the sixth communicating pipe 22 and can be discharged through the water outlet pipe 23.

The working principle of the utility model is as follows: when in use, firstly sewage enters the anaerobic tank 2 through the water inlet pipe 8 on the integrated tank body 1, and part of COD and BOD is removed under the action of anaerobic bacteria ₅ And the like, degrading macromolecular organic matters into small molecular organic matters;

then enters the anoxic tank 3 through the first communicating pipe 9 to carry out denitrification reaction, then enters the aerobic tank 4 through the second communicating pipe 11 to carry out nitration reaction, then enters the sedimentation tank 5 through the third communicating pipe 14, mud-water separation is carried out by utilizing the inclined plate filler 31 in the sedimentation tank 5, and particles with larger mass in the sewage are deposited into the sludge hopper 36 under the action of self gravity, and the sludge hopper 36 is cone-shaped, so that deposited sludge can be extruded towards the center of the cone hopper, and suspended matters with lighter mass are gradually attached to the inclined plate filler 31, and are deposited into the sludge hopper 36 under the action of self gravity along with the lifting of accumulation amount;

after the sewage is precipitated, the supernatant fluid enters the effluent weir groove 19 through a serrated overflow weir plate (an outer side plate of the effluent weir groove 19), enters the sand filter tank 34 through the fourth communicating pipe 20, is filtered by the sand filter tank 34, enters the ultraviolet sterilizer 35 for sterilization treatment through the fifth communicating pipe 21, then enters the clean water tank 6 through the sixth communicating pipe 22, and finally is connected with an external drain pipe through the water outlet pipe 23, thus the whole sewage treatment process is completed.

Claims (8)

1. The integrated high-efficiency sewage processor is characterized by comprising an integrated box body (1), wherein an anaerobic tank (2), an anoxic tank (3), an aerobic tank (4), a sedimentation tank (5), a clean water tank (6) and an equipment room (7) are sequentially distributed in the integrated box body (1);

the anaerobic tank (2) is positioned at a corner of one side of the integrated tank body (1), the anoxic tank (3) is adjacently arranged at the other side of the anaerobic tank (2), a first reflux pump (27) is arranged at the bottom of the water outlet of the anoxic tank (3), a first reflux pipe (10) is arranged between the anaerobic tank (2) and the anoxic tank (3), one end of the first reflux pipe (10) is communicated with the first reflux pump (27) in the anoxic tank (3), and the other end of the first reflux pipe is communicated with the inside of the anaerobic tank (2);

the aerobic tank (4) is adjacently arranged on the other side of the anoxic tank (3), an aeration pipe network (13) is arranged at the bottom of the aerobic tank (4), and combined filler (29) is distributed in the aerobic tank (4) above the aeration pipe network (13);

the sedimentation tank (5) is adjacently arranged on the other side of the aerobic tank (4), two cone-shaped sludge hoppers (36) are arranged at the bottom of the sedimentation tank (5), inclined plate fillers (31) which are fully distributed on the horizontal section are arranged above the sludge hoppers (36), and water outlet weir grooves (19) are formed in the upper side of the inclined plate fillers (31) on the water outlet side of the sedimentation tank (5).

2. The integrated high-efficiency sewage processor according to claim 1, wherein a water inlet pipe (8) communicated with the inside of the anaerobic tank (2) is arranged at the upper end of one side of the integrated tank body (1), and a first submerged impeller (25) is arranged at the bottom of the water inlet part of the anaerobic tank (2);

a first communication pipe (9) communicated with the anaerobic tank (2) and the anoxic tank (3) is arranged between the anaerobic tank and the anoxic tank (3), and a second submersible water impeller (26) is arranged at the bottom of the water inlet of the anoxic tank (3).

3. The integrated high-efficiency sewage processor according to claim 1, wherein a second communicating pipe (11) which is communicated with the anoxic tank (3) and the aerobic tank (4) is arranged at the bottom of the water outlet of the aerobic tank (4), a second reflux pump (30) is arranged between the anoxic tank (3) and the aerobic tank (4), a second reflux pipe (15) is arranged between the anoxic tank (3) and the aerobic tank (4), one end of the second reflux pipe (15) is communicated with the second reflux pump (30) at the bottom end inside the aerobic tank (4), and the other end of the second reflux pipe (15) is communicated with the inside of the anoxic tank (3).

4. The integrated high-efficiency sewage processor according to claim 1, wherein the aeration pipe network (13) is communicated with a gas pipe (12) extending into the equipment room (7), the bottom of the aeration pipe network (13) is connected with a fixed support, the fixed support is arranged at the bottom of the aerobic tank (4), a plurality of aeration discs (28) are distributed on the aeration pipe network (13), and the aeration discs (28) are connected with the aeration pipe network (13) through threads.

5. The integrated high-efficiency sewage treatment device according to claim 1, wherein a third communicating pipe (14) is arranged between the sedimentation tank (5) and the aerobic tank (4), the cross section of the inclined plate filler (31) is hexagonal honeycomb, the inner side plate of the water outlet weir groove (19) is a closed weir plate, and the outer side plate of the water outlet weir groove (19) is serrated.

6. The integrated high-efficiency sewage processor according to claim 1, wherein a first sludge pump (32) and a second sludge pump (33) are respectively arranged at the bottoms of the inner sides of the sludge hoppers (36), the output ends of the first sludge pump (32) and the second sludge pump (33) are jointly communicated with a sludge pipe (16), a third return pipe (17) is arranged between the sedimentation tank (5) and the anoxic tank (3), one end of the third return pipe (17) is communicated with the sludge pipe (16), the other end of the third return pipe (17) is communicated with the interior of the anoxic tank (3), the third return pipe (17) is branched into a sludge discharge pipe (18) in the sedimentation tank (5), and a valve is arranged on the sludge discharge pipe (18).

7. The integrated high-efficiency sewage treatment device according to claim 4, wherein the clean water tank (6) and the equipment room (7) are arranged on the other side of the sedimentation tank (5) in parallel, the equipment room (7) is positioned at the other corner of the integrated tank body (1), an aeration fan (24), a sand filtering tank (34) and an ultraviolet sterilizer (35) and an electric cabinet are arranged in the equipment room (7), and the aeration fan (24) is communicated with an aeration pipe network (13) through a gas pipe (12).

8. The integrated high-efficiency sewage treatment device according to claim 7, wherein a fourth communicating pipe (20) communicated with the sand filtering tank (34) is arranged between the sand filtering tank (34) and the sedimentation tank (5), one end of the fourth communicating pipe (20) is communicated with the sand filtering tank (34), and the other end of the fourth communicating pipe penetrates through the sedimentation tank (5) and is communicated with the inner side of the water outlet weir groove (19);

a fifth communicating pipe (21) is arranged between the sand filtering tank (34) and the ultraviolet sterilizer (35), a sixth communicating pipe (22) is arranged between the ultraviolet sterilizer (35) and the clean water tank (6), and a water outlet pipe (23) extending to the outside of the integrated box body (1) is further arranged on the clean water tank (6).

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