CN210237327U - Urban sewage treatment equipment - Google Patents
Urban sewage treatment equipment Download PDFInfo
- Publication number
- CN210237327U CN210237327U CN201921076155.8U CN201921076155U CN210237327U CN 210237327 U CN210237327 U CN 210237327U CN 201921076155 U CN201921076155 U CN 201921076155U CN 210237327 U CN210237327 U CN 210237327U
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- bin
- water storage
- sewage
- storage bin
- filtering
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- 239000010865 sewage Substances 0.000 title claims abstract description 87
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 96
- 238000001914 filtration Methods 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 238000005086 pumping Methods 0.000 claims abstract description 27
- 238000005192 partition Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 21
- 238000004062 sedimentation Methods 0.000 claims description 17
- 239000012535 impurity Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000008394 flocculating agent Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000007800 oxidant agent Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A town sewage treatment device comprises a box body, a first liquid pumping device, a filtering component and a second liquid pumping device; a first partition plate and a second partition plate are arranged in the box body side by side; the first partition plate and the second partition plate divide the interior of the box body into a filtering bin, a settling bin and a first water storage bin in sequence; a first water outlet hole is formed in the first partition plate; a first grating and a second grating are arranged in the filtering bin side by side, and a first liquid inlet hole on the filtering bin is respectively connected with a first liquid pumping device used for conveying sewage to the filtering bin; a third clapboard is arranged in the first water storage bin; the third partition board is used for dividing the interior of the first water storage bin into a second water storage bin and a third water storage bin, and filter assemblies are respectively arranged in mounting holes in the third partition board; sewage sequentially passes through the first grating and the second grating and finally enters the settling bin from the first water outlet; the sewage is input into the second water storage bin through the second liquid pumping device and enters the third water storage bin through the filtering component. The utility model discloses can handle sewage high-efficiently, easy operation convenient to use green more.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially relates to a town sewage treatment device.
Background
While towns develop rapidly, towns generate a large amount of waste every day; town wastewater cannot be directly discharged, and certain treatment needs to be carried out on the wastewater so as to avoid the discharged urban sewage from polluting the environment and water sources; but the cost of the existing sewage treatment equipment is high; when the sewage is treated, the sewage treatment is only simply carried out to reach the discharge standard, and the treated sewage cannot be collected for secondary utilization; after all, the available water resources are limited.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides a town sewage treatment device, the utility model provides a sewage treatment device easy operation convenient to use can the efficient handle sewage to obtain the purified water that can carry out the reutilization.
(II) technical scheme
In order to solve the problems, the utility model provides a town sewage treatment device, which comprises a box body, a first liquid pumping device, a first grid, a second grid, a stirring component, a filtering component and a second liquid pumping device;
a first partition plate and a second partition plate are arranged in the box body side by side; the first partition plate and the second partition plate divide the interior of the box body into a filtering bin, a settling bin and a first water storage bin in sequence; the first partition plate is provided with a first water outlet hole for communicating the filtering bin with the settling bin;
a first grating and a second grating are arranged in the filtering bin side by side, and a first liquid inlet hole is formed in the box body of the filtering bin; the first liquid inlet holes are respectively connected with a first liquid pumping device used for conveying sewage to the filtering bin; sewage enters the filtering bin, sequentially passes through the first grating and the second grating and finally enters the settling bin from the first water outlet;
the sedimentation bin is provided with a first opening and a second water outlet hole which are used for adding a flocculating agent into the sedimentation bin on the box body, and a stirring assembly used for stirring sewage in the sedimentation bin is arranged in the sedimentation bin;
a third clapboard is arranged in the first water storage bin; the third partition board is used for dividing the interior of the first water storage bin into a second water storage bin and a third water storage bin, and mounting holes for communicating the second water storage bin with the third water storage bin are formed in the third partition board; the mounting holes are respectively provided with a filtering component for filtering sewage flowing into the third water storage bin from the second water storage bin;
the second water storage bin is provided with a second liquid inlet hole on the box body; the second liquid inlet hole is respectively connected with the water outlet end of the second liquid pumping device; the water inlet end of the second liquid pumping device is respectively connected with the second water outlet.
Preferably, a third water outlet is formed in the box body of the third water storage bin; the third water outlet holes are respectively provided with a drain pipe; the drain pipes are respectively provided with a stop valve.
Preferably, the stirring assembly comprises a rotating shaft, a stirring rod and a driving device; the rotating shaft is rotatably arranged in the sedimentation bin, stirring rods are uniformly arranged on the rotating shaft, and the rotating shaft is in transmission connection with a driving device.
Preferably, the filter assembly comprises a filter cartridge, a filter element, a mounting block, a fixing tube and a sealing block; one end of the interior of the filter cartridge is respectively provided with a mounting block, the other end of the filter cartridge is respectively provided with a second opening, the outer peripheral surface of the filter cartridge is uniformly provided with first through holes, and the filter cartridges are respectively screwed into the mounting holes and extend into the second water storage bin; second through holes are uniformly formed in the outer peripheral surface of the fixed pipe respectively, one end of the fixed pipe extends into the filter cartridge from the second opening and is screwed into the mounting block respectively, and a gap for mounting the filter cartridge is reserved between the fixed pipe and the filter cartridge; vertical third through holes are respectively formed in the sealing blocks, the sealing blocks are respectively screwed into the second openings, and the sealing blocks press the fixing pipe towards the end face of the fixing pipe; the third through holes are respectively communicated with the inside of the fixed pipe.
Preferably, the filter element is made of polypropylene materials, and the net diameter of the filter element from the outer end face to the inner end face is gradually reduced.
Preferably, the first grid has a gap width not greater than the gap width of the second grid.
Preferably, the first opening is provided with a first sealing door.
Preferably, the bottom surface of the filter bin is obliquely arranged, and the filter bin is provided with a first sewage draining hole on the box body; the first sewage draining holes are respectively connected with a first sewage draining pump used for draining impurities at the bottom of the filtering bin.
Preferably, the box body of the filtering bin is provided with a third opening for feeding an oxidant into the filtering bin; and a second sealing door is arranged at the third opening.
Preferably, the bottom surface of the settling bin is obliquely arranged, and a second sewage draining hole is formed in the box body of the settling bin; the second sewage discharge holes are respectively connected with a second sewage discharge pump used for discharging impurities at the bottom of the settling bin.
The above technical scheme of the utility model has following profitable technological effect:
in the utility model, sewage is conveyed into the filtering bin through the first liquid pumping device; filtering sewage through the first grating and the second grating, and intercepting large-particle impurities at the sewage on the first grating and the second grating; large-particle impurities are finally precipitated at the bottom of the filtering bin;
the sewage after coarse filtration enters a settling bin through a first water outlet hole in an overflow mode; a flocculating agent is added into the sedimentation bin, and the sewage in the sedimentation bin is stirred by the stirring component, so that the flocculation speed of the sewage is accelerated; conveying the flocculated upper-layer sewage to a second water storage bin by a second liquid pumping device; sewage in the second water storage bin flows into the third water storage bin after being filtered by the filtering component;
the process is simple to operate, no harmful substances are generated in the treatment process, the treatment process is more environment-friendly, the sewage can be efficiently treated, and the obtained treated water can be secondarily used, such as flushing toilets, irrigating plants and the like;
in addition, the filtering component can effectively filter fine impurities in sewage, and the filtering component is convenient to mount and dismount and convenient to use.
Drawings
Fig. 1 is a schematic structural view of the town sewage treatment equipment provided by the utility model.
Fig. 2 is a schematic diagram of a locally enlarged structure at a position a in the town sewage treatment equipment provided by the utility model.
Fig. 3 is a schematic structural diagram of the local enlargement of the position B in the town sewage treatment equipment.
Fig. 4 is a schematic structural diagram of a filter cartridge in the town sewage treatment equipment provided by the utility model.
Fig. 5 is a front view of the town sewage treatment equipment provided by the utility model.
Fig. 6 is a top view of the town sewage treatment equipment provided by the utility model.
Reference numerals: 1. a box body; 2. a first liquid pumping device; 3. a first liquid inlet hole; 4. a first grid; 5. a second grid; 6. a filtering bin; 7. a first separator; 8. a first water outlet; 9. a settling bin; 10. a second separator; 11. a rotating shaft; 12. a stirring rod; 13. a second water storage bin; 14. a third partition plate; 15. a third water outlet; 16. a third water storage bin; 17. a filter cartridge; 18. a filter element; 19. mounting blocks; 20. a fixed tube; 21. a second through hole; 22. a sealing block; 23. a third through hole; 24. a first through hole; 25. a first sewage discharge pump; 26. a first drain hole; 27. a second dredge pump; 28. a second blowoff hole; 29. a second water outlet; 30. a second pumping device; 31. a second liquid inlet hole; 32. a drive device; 33. a first sealing door; 34. a second sealing door.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-6, the utility model provides a town sewage treatment equipment, which comprises a box body 1, a first liquid pumping device 2, a first grid 4, a second grid 5, a stirring component, a filtering component and a second liquid pumping device 30;
a first clapboard 7 and a second clapboard 10 are arranged in the box body 1 side by side; the first partition plate 7 and the second partition plate 10 divide the interior of the box body 1 into a filtering bin 6, a settling bin 9 and a first water storage bin in sequence; a first water outlet hole 8 for communicating the filtering bin 6 with the settling bin 9 is formed in the first partition plate 7;
a first grating 4 and a second grating 5 for filtering impurities in water are arranged in the filtering bin 6 side by side, and the filtering bin 6 is provided with a first liquid inlet hole 3 on the box body 1; the first liquid inlet holes 3 are respectively connected with a first liquid pumping device 2 used for conveying sewage to a filtering bin 6; sewage enters a filtering bin 6, sequentially passes through a first grating 4 and a second grating 5 and finally enters a settling bin 9 through a first water outlet 8;
further, the first liquid pumping device 2 is a water pump;
the sedimentation bin 9 is provided with a first opening and a second water outlet 29 which are used for adding a flocculating agent into the sedimentation bin 9 on the box body 1, and a stirring component used for stirring sewage in the sedimentation bin 9 is arranged in the sedimentation bin 9;
a third clapboard 14 is arranged in the first water storage bin; the third partition plate 14 is used for dividing the interior of the first water storage bin into a second water storage bin 13 and a third water storage bin 16, and the third partition plate 14 is provided with a mounting hole for communicating the second water storage bin 13 with the third water storage bin 16; the mounting holes are respectively provided with a filtering component for filtering sewage flowing into the third water storage 16 from the second water storage 13;
the second water storage bin 13 is provided with a second liquid inlet hole 31 on the box body 1; the second liquid inlet hole 31 is respectively connected with the water outlet end of the second liquid pumping device 30; the water inlet end of the second liquid pumping device 30 is respectively connected with the second water outlet 29;
further, the second liquid pumping device 30 is a water pump.
In the utility model, the sewage is conveyed into the filtering bin 6 through the first liquid pumping device 2; the sewage is filtered by the first grating 4 and the second grating 5, and large-particle impurities at the sewage are trapped on the first grating 4 and the second grating 5; large-particle impurities are finally precipitated at the bottom of the filtering bin 6; the sewage after coarse filtration enters a settling bin 9 through a first water outlet hole 8 in an overflow mode; a flocculating agent is added into the sedimentation bin 9, and the sewage in the sedimentation bin 9 is stirred by the stirring component, so that the flocculation speed of the sewage is accelerated; the flocculated upper-layer sewage is conveyed to a second water storage bin 13 by a second liquid pumping device 30; the sewage in the second water storage bin 13 flows into a third water storage bin 16 after being filtered by the filtering component; above-mentioned process easy operation does not produce harmful substance in the processing procedure, and is more environmental protection, can high-efficiently handle sewage, carries out the secondary use to the hydroenergy after the processing that obtains, for example is used for washing the lavatory and for plant irrigation etc..
In an alternative embodiment, the third water storage 16 is provided with a third water outlet 15 on the box body 1; the third water outlet holes 15 are respectively provided with a water outlet pipe; the drain pipes are respectively provided with a stop valve; by opening the stop valve, the filtered water stored in the third water storage 16 flows out from the drain pipe.
In an alternative embodiment, the stirring assembly comprises a rotating shaft 11, a stirring rod 12 and a driving device 32; the rotating shaft 11 is rotatably arranged in the settling bin 9, the stirring rods 12 are uniformly arranged on the rotating shaft 11, and the rotating shaft 11 is in transmission connection with a driving device 32; the driving device 32 is a variable frequency motor.
In an alternative embodiment, the filter assembly comprises a filter cartridge 17, a filter cartridge 18, a mounting block 19, a fixed tube 20, and a sealing block 22;
one end of the interior of the filter cartridge 17 is respectively provided with a mounting block 19, the other end of the filter cartridge 17 is respectively provided with a second opening, the peripheral surface of the filter cartridge 17 is uniformly provided with first through holes 24, and the filter cartridges 17 are respectively screwed into the mounting holes and extend into the second water storage bin 13;
second through holes 21 are uniformly formed in the outer peripheral surface of the fixed pipe 20, one end of the fixed pipe 20 extends into the filter cartridge 17 from a second opening and is screwed into the mounting block 19, and a gap for mounting the filter element 18 is reserved between the fixed pipe 20 and the filter cartridge 17; the filter element 18 is positioned in the second water storage bin 13; the end faces of the filter element 18 facing the fixed pipe 20 and the filter cartridge 17 respectively press the fixed pipe 20 and the filter cartridge 17;
vertical third through holes 23 are respectively formed in the sealing blocks 22, the sealing blocks 22 are respectively screwed into the second openings, and the sealing blocks 22 press the fixing tube 20 towards the end face of the fixing tube 20; the third through holes 23 are respectively communicated with the inside of the fixed pipe 20;
further, in the above-mentioned case,
the end faces of the sealing blocks 22 facing the fixed pipe 20 are respectively provided with rubber sealing rings.
The sewage in the second water storage bin 13 enters the filter cylinder 17 from the first through hole 24, and enters the inside of the fixed pipe 20 from the third through hole 23 after being filtered by the filter element 18; the sewage flows into the third water storage bin 16 from the second through hole 21 through the inside of the fixed pipe 20; the filter component is convenient to install and replace and convenient to use.
In an alternative embodiment, the filter element 18 is made of polypropylene, and the mesh diameter of the filter element 18 decreases from the outer end surface to the inner end surface.
In an alternative embodiment, the first grid 4 has a gap width that is not greater than the gap width of the second grid 5.
In an alternative embodiment, a first sealing door 33 is arranged at the first opening; the interior of the sedimentation bin 9 is conveniently cleaned and maintained through the first sealing door 33.
In an alternative embodiment, the bottom surface of the filter bin 6 is arranged obliquely, and the filter bin 6 is provided with a first sewage draining hole 26 on the box body 1; the first sewage discharging holes 26 are respectively connected with a first sewage discharging pump 25 for discharging impurities at the bottom of the filtering bin 6.
In an alternative embodiment, the filter cabin 6 is provided with a third opening on the box body 1 for feeding an oxidant into the filter cabin 6; a second sealing door 34 is arranged at the third opening; the inside of the filter bin 6 is convenient to clean and maintain through the second sealing door 34.
In an alternative embodiment, the bottom surface of the settling bin 9 is obliquely arranged, and the settling bin 9 is provided with a second sewage discharge hole 28 on the box body 1; the second sewage discharging holes 28 are respectively connected with a second sewage discharging pump 27 for discharging impurities at the bottom of the sedimentation bin 9.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. Urban sewage treatment equipment is characterized by comprising a box body (1), a first liquid pumping device (2), a first grating (4), a second grating (5), a stirring component, a filtering component and a second liquid pumping device (30);
a first clapboard (7) and a second clapboard (10) are arranged in the box body (1) side by side; the interior of the box body (1) is sequentially divided into a filtering bin (6), a settling bin (9) and a first water storage bin by a first partition plate (7) and a second partition plate (10); a first water outlet (8) for communicating the filtering bin (6) with the settling bin (9) is formed in the first partition plate (7);
a first grating (4) and a second grating (5) are arranged in the filtering bin (6) side by side, and a first liquid inlet hole (3) is formed in the box body (1) of the filtering bin (6); the first liquid inlet holes (3) are respectively connected with a first liquid pumping device (2) used for conveying sewage to the filtering bin (6); sewage enters a filtering bin (6), sequentially passes through a first grid (4) and a second grid (5) and finally enters a settling bin (9) through a first water outlet (8);
a first opening and a second water outlet (29) which are used for adding a flocculating agent into the settling bin (9) are arranged on the box body (1) of the settling bin (9), and a stirring assembly used for stirring sewage in the settling bin (9) is arranged in the settling bin (9);
a third clapboard (14) is arranged in the first water storage bin; the third partition plate (14) is used for dividing the interior of the first water storage bin into a second water storage bin (13) and a third water storage bin (16), and mounting holes for communicating the second water storage bin (13) with the third water storage bin (16) are formed in the third partition plate (14); the mounting holes are respectively provided with a filtering component for filtering sewage flowing into the third water storage bin (16) from the second water storage bin (13);
a second liquid inlet hole (31) is formed in the box body (1) of the second water storage bin (13); the second liquid inlet hole (31) is respectively connected with the water outlet end of the second liquid pumping device (30); the water inlet ends of the second liquid pumping devices (30) are respectively connected with the second water outlet holes (29).
2. The town sewage treatment equipment according to claim 1, wherein the third water storage tank (16) is provided with a third water outlet hole (15) on the tank body (1); the third water outlet holes (15) are respectively provided with a water outlet pipe; the drain pipes are respectively provided with a stop valve.
3. The town sewage treatment equipment according to claim 1, wherein the stirring assembly comprises a rotating shaft (11), a stirring rod (12) and a driving device (32); the rotating shaft (11) is rotatably arranged in the sedimentation bin (9), the stirring rods (12) are uniformly arranged on the rotating shaft (11), and the rotating shaft (11) is in transmission connection with the driving device (32).
4. The town sewage treatment equipment according to claim 1, wherein the filter assembly comprises a filter cartridge (17), a filter cartridge (18), a mounting block (19), a fixing pipe (20), and a sealing block (22); one end of the interior of the filter cartridge (17) is respectively provided with a mounting block (19), the other end of the filter cartridge (17) is respectively provided with a second opening, the peripheral surface of the filter cartridge (17) is uniformly provided with first through holes (24), and the filter cartridges (17) are respectively screwed into the mounting holes and extend into the second water storage bin (13); second through holes (21) are uniformly formed in the outer peripheral surface of the fixed pipe (20), one end of the fixed pipe (20) extends into the filter cartridge (17) from a second opening and is screwed into the mounting block (19) respectively, and a gap for mounting the filter element (18) is reserved between the fixed pipe (20) and the filter cartridge (17); vertical third through holes (23) are respectively formed in the sealing blocks (22), the sealing blocks (22) are respectively screwed into the second openings, and the sealing blocks (22) press the fixing pipe (20) towards the end face of the fixing pipe (20); the third through holes (23) are respectively communicated with the inside of the fixed pipe (20).
5. The town sewage treatment equipment according to claim 4, wherein the filter element (18) is made of polypropylene, and the diameter of the filter element (18) decreases gradually from the outer end surface to the inner end surface.
6. A town sewage treatment plant according to claim 1, wherein the first grid (4) has a gap width not greater than the gap width of the second grid (5).
7. The town sewage treatment equipment according to claim 1, wherein the first opening is provided with a first sealing door (33).
8. The town sewage treatment equipment according to claim 1, wherein the bottom surface of the filter bin (6) is inclined, and the filter bin (6) is provided with a first sewage draining hole (26) on the box body (1); the first sewage discharge holes (26) are respectively connected with a first sewage discharge pump (25) for discharging impurities at the bottom of the filter bin (6).
9. The town sewage treatment equipment according to claim 8, wherein the filter house (6) is provided with a third opening on the box body (1) for throwing an oxidizing agent into the filter house (6); a second sealing door (34) is arranged at the third opening.
10. The town sewage treatment equipment according to claim 1, wherein the bottom surface of the settling bin (9) is inclined, and the settling bin (9) is provided with a second sewage draining hole (28) on the box body (1); the second sewage discharge holes (28) are respectively connected with a second sewage discharge pump (27) for discharging impurities at the bottom of the sedimentation bin (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921076155.8U CN210237327U (en) | 2019-07-10 | 2019-07-10 | Urban sewage treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921076155.8U CN210237327U (en) | 2019-07-10 | 2019-07-10 | Urban sewage treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210237327U true CN210237327U (en) | 2020-04-03 |
Family
ID=69990566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921076155.8U Active CN210237327U (en) | 2019-07-10 | 2019-07-10 | Urban sewage treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210237327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113304545A (en) * | 2021-06-08 | 2021-08-27 | 高兴华 | Secondary water supply equipment |
| CN115028323A (en) * | 2022-07-08 | 2022-09-09 | 广东家怡生态环境股份有限公司 | High enriched sewage multi-stage treatment equipment |
-
2019
- 2019-07-10 CN CN201921076155.8U patent/CN210237327U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113304545A (en) * | 2021-06-08 | 2021-08-27 | 高兴华 | Secondary water supply equipment |
| CN113304545B (en) * | 2021-06-08 | 2022-07-29 | 上海泰普克科技有限公司 | Secondary water supply equipment |
| CN115028323A (en) * | 2022-07-08 | 2022-09-09 | 广东家怡生态环境股份有限公司 | High enriched sewage multi-stage treatment equipment |
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