CN214936135U - Municipal administration sewage drainage processing system - Google Patents
Municipal administration sewage drainage processing system Download PDFInfo
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- CN214936135U CN214936135U CN202120643473.9U CN202120643473U CN214936135U CN 214936135 U CN214936135 U CN 214936135U CN 202120643473 U CN202120643473 U CN 202120643473U CN 214936135 U CN214936135 U CN 214936135U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The utility model provides a municipal sewage drainage treatment system, which arranges a purification device in a sewage drainage well; a crushing mechanism is arranged in the purification device; a main sewage discharge pipeline of the automatic sewage diversion system is connected with a diversion pipeline; the hydraulic power generation device of the sewage grading purification system is arranged at the water outlet of each main sewage discharge pipeline, each main sewage discharge pipeline is connected with the sewage treatment tank, and the sewage drainage well is connected with the primary filtering equipment, the middle-stage filtering equipment and the high-stage filtering equipment through the shunt pipeline and the main sewage discharge pipeline. The crushing mechanism is arranged, so that impurities in the sewage can be quickly crushed, and the blocking condition is reduced; the sewage drainage efficiency can be improved by draining the sewage to the pipeline with less water flow through the automatic sewage diversion system, and then the sewage classification purification system is utilized to detect the discharged sewage and carry out purification treatment of different levels according to the pollution degree, so that the purification efficiency is improved.
Description
Technical Field
The utility model relates to a sewage drainage treatment technical field, concretely relates to municipal administration sewage drainage treatment system.
Background
Sewage treatment is a process of purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people. The sewage treatment is widely applied, but most sewage still comes from the sludge and the garbage on the ground, the ground is always washed clean every time when raining in summer, the garbage and the dust on the ground are taken away by rainwater, so that sewage is formed, the sewage is discharged through a sewage discharge pipeline on the ground when being discharged, the existing drainage system is poor in functionality, namely a single sewage discharge pipeline, so that the sewage is convenient to discharge, but when the rainstorm occurs, the garbage on the ground flows into the sewage discharge pipeline along with the rainstorm, so that the pipeline is blocked, the sewage is not easy to discharge, so that the urban inland inundation is caused, a large number of sewage discharge pipelines are connected with one large sewage discharge groove, when the water amount of the sewage discharge groove is too large, the sewage on the branch is difficult to discharge, so that a large amount of accumulated water is stored in a sewage discharge well mouth, and the normal life of people is influenced, in addition, the existing sewage discharge system does not have equipment for purifying and discharging sewage, directly discharges the sewage into rivers, causes great environmental pollution, and can not carry out sewage treatment of different levels according to the grade of the discharged sewage.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a municipal administration sewage drainage processing system aims at solving the technical problem that current drainage blockked up easily and purification efficiency is low.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a municipal sewage drainage treatment system comprises a sewage pretreatment system, an automatic sewage diversion system and a sewage grading purification system; the sewage pretreatment system comprises a sewage drainage well and a purification device; the purification device is arranged in the sewage drainage well; a crushing mechanism is arranged in the purification device;
the automatic sewage diversion system comprises a diversion pipeline, a main sewage discharge pipeline, a water level sensor and an electromagnetic valve; the main sewage discharge pipeline is connected with the diversion pipeline; the water level sensor and the electromagnetic valve are arranged on the main sewage pipeline;
the sewage grading and purifying system comprises a hydroelectric generation device, a primary filtering device, a middle-grade filtering device, a high-grade filtering device and a water quality sensor; the hydraulic power generation device is arranged at a water outlet of each main sewage discharge pipeline, each main sewage discharge pipeline is connected with a sewage treatment tank, the sewage treatment tank is connected with primary filtering equipment, the primary filtering equipment is connected with intermediate filtering equipment, the intermediate filtering equipment is connected with high-grade filtering equipment, the high-grade filtering equipment is connected with a river pond, and water quality sensors are arranged at the water outlets of the primary filtering equipment, the intermediate filtering equipment and the high-grade filtering equipment;
the sewage drainage well is connected with the primary filtering equipment, the middle-grade filtering equipment and the high-grade filtering equipment through a diversion pipeline and a main sewage drainage pipeline.
As a further improvement of the utility model, the top of the purification device is provided with a drainage well cover; the middle part of drainage well lid is equipped with a plurality of holes that leak, and the outside of drainage well lid is equipped with the intake chamber, is equipped with a plurality of locating holes on the intake chamber.
As a further improvement, purifier's the top outside is equipped with the limiting plate, and the top of limiting plate is equipped with locating hole assorted locating lever, and purifier's inside is equipped with water drainage tank, and the braking case is installed to water drainage tank's bottom one side, and the internally mounted of braking case has driving motor and gear box, and the last crushing roller that is connected with of driving motor, the bearing is installed to the one end of crushing roller, and the internally mounted of braking case has the control mainboard, and the side slope department of braking case installs the fluviograph.
As a further improvement, the driving motor and the gear box are all installed on the inside of the brake box through bolts, one end of the crushing roller is fixedly connected with the bearing, and the other end of the crushing roller is fixedly connected with the gear in the gear box.
As a further improvement, the drainage well lid is installed on the locating lever at limiting plate top through the locating hole, and the limiting plate is installed in sewer well head department.
As the utility model discloses a further improvement, automatic reposition of redundant personnel system of sewage includes a plurality of reposition of redundant personnel pipelines and main blowdown pipeline, and the one end of reposition of redundant personnel pipeline links to each other with purifier, and the other end of reposition of redundant personnel pipeline passes through the connecting pipe and links to each other with a plurality of main blowdown pipelines respectively, and level sensor is all installed to main blowdown pipeline's inside, installs solenoid valve on the connecting pipe.
As a further improvement, the centrifugal pump is connected with the processing workshop of the chemical fertilizer plant through a blow-off pipe, and the processing workshop of the chemical fertilizer plant is internally provided with filter pressing and concentration equipment.
As a further improvement of the present invention, the hydroelectric power generation device comprises an impeller, a generator and a battery box; hydroelectric generation device passes through the bolt and installs in the delivery port department of main blowdown pipe, and the battery and water quality sensor, controller and the water level sensor electric wire connection of battery incasement, water quality sensor pass through the electromagnetic valve electric connection on controller and the high-grade filtration equipment, and water level sensor passes through the electromagnetic valve electric connection on controller and the connecting pipe.
As a further improvement, the water level gauge and the control mainboard and driving motor all link to each other with external power supply, and the water level gauge passes through control mainboard and driving motor electric connection.
Compared with the prior art, the beneficial effects of the utility model are that:
according to the sewage purification device, the crushing mechanism is arranged in the purification device, so that impurities in sewage can be rapidly crushed, and the blocking condition is reduced; the sewage drainage efficiency can be improved by draining the sewage to the pipeline with less water flow through the automatic sewage diversion system, a large amount of accumulated water caused by blocking of one pipeline is avoided, then the sewage classification purification system is utilized to detect the discharged sewage, and purification treatment of different levels is carried out according to the pollution degree, so that the purification efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a block diagram of a shunt module of the present sewer line;
FIG. 3 is a schematic structural view of the crushing mechanism of the present invention;
FIG. 4 is a top view of the drainage well cover of the present invention;
the reference numbers in the figures illustrate:
1. a crushing mechanism; 2. a drainage well cover; 201. a water leakage hole; 202. a water inlet groove; 203. positioning holes; 3. a water discharge tank; 4. a limiting plate; 5. a brake box; 6. a controller; 8. a drive motor; 9. a gear case; 10. a power line; 11. a crushing roller; 12. and a bearing.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
With the attached drawings 1 to 4, the utility model provides a municipal sewage drainage treatment system, which aims to solve the technical problems of easy blockage and low purification efficiency of the existing sewage discharge system.
The system comprises a sewage pretreatment system, an automatic sewage diversion system and a sewage grading purification system; the sewage pretreatment system comprises a sewage drainage well and a purification device; the purification device is arranged in the sewage drainage well; a crushing mechanism 1 is arranged in the purification device;
the automatic sewage diversion system comprises a diversion pipeline, a main sewage discharge pipeline, a water level sensor and an electromagnetic valve; the main sewage discharge pipeline is connected with the diversion pipeline; the water level sensor and the electromagnetic valve are arranged on the main sewage pipeline;
the sewage grading and purifying system comprises a hydroelectric generation device, a primary filtering device, a middle-grade filtering device, a high-grade filtering device and a water quality sensor; the hydraulic power generation device is arranged at a water outlet of each main sewage discharge pipeline, each main sewage discharge pipeline is connected with a sewage treatment tank, the sewage treatment tank is connected with primary filtering equipment, the primary filtering equipment is connected with intermediate filtering equipment, the intermediate filtering equipment is connected with high-grade filtering equipment, the high-grade filtering equipment is connected with a river pond, and water quality sensors are arranged at the water outlets of the primary filtering equipment, the intermediate filtering equipment and the high-grade filtering equipment;
the sewage drainage well is connected with the primary filtering equipment, the middle-grade filtering equipment and the high-grade filtering equipment through a diversion pipeline and a main sewage drainage pipeline.
According to the sewage purification device, the crushing mechanism 1 is arranged in the purification device, so that impurities in sewage can be rapidly crushed, and the blocking condition is reduced; the sewage drainage efficiency can be improved by draining the sewage to the pipeline with less water flow through the automatic sewage diversion system, a large amount of accumulated water caused by blocking of one pipeline is avoided, then the sewage classification purification system is utilized to detect the discharged sewage, and purification treatment of different levels is carried out according to the pollution degree, so that the purification efficiency is improved.
In one embodiment, the top of the purification device is provided with a drainage well cover 2; the middle part of drainage well lid 2 is equipped with a plurality of holes 201 that leak, and the outside of drainage well lid 2 is equipped with intake chamber 202, is equipped with a plurality of locating holes 203 on the intake chamber 202.
In an embodiment, purifier's the top outside is equipped with limiting plate 4, and limiting plate 4's top is equipped with the locating lever with locating hole 203 assorted, and purifier's inside is equipped with water drainage tank 3, and brake box 5 is installed to water drainage tank 3's bottom one side, and brake box 5's internally mounted has driving motor 8 and gear box 9, is connected with crushing roller 11 on the driving motor 8, and bearing 12 is installed to crushing roller 11's one end, and brake box 5's internally mounted has the control mainboard, and water level gauge 7 is installed to the side slope department of brake box 5.
The driving motor 8 and the gear box 9 are both installed on the inner portion of the brake box 5 through bolts, one end of the crushing roller 11 is fixedly connected with the bearing 12, and the other end of the crushing roller 11 is fixedly connected with a gear in the gear box 9.
In an embodiment, automatic reposition of redundant personnel system of sewage includes a plurality of reposition of redundant personnel pipelines and main blowdown pipeline, and the one end of reposition of redundant personnel pipeline links to each other with purifier, and the other end of reposition of redundant personnel pipeline passes through the connecting pipe and links to each other with a plurality of main blowdown pipelines respectively, and level sensor is all installed to main blowdown pipeline's inside, installs solenoid valve on the connecting pipe.
In one embodiment, the primary filtering equipment, the intermediate filtering equipment and the high-grade filtering equipment in the sewage grading and purifying system are composed of a plurality of filter screens and centrifugal pumps, the centrifugal pumps are connected with a processing workshop of a fertilizer plant through a sewage discharge pipe, and filter pressing and concentration equipment is installed inside the processing workshop of the fertilizer plant.
The hydroelectric generation device in the sewage grading and purifying system comprises an impeller, a generator and a battery box; hydroelectric generation device passes through the bolt and installs in the delivery port department of main blowdown pipe, and the battery and the water quality sensor of battery box, controller 6 and level sensor connection of electric lines, water quality sensor pass through controller 6 and the electromagnetic valve electric connection on medium-grade filtration equipment and the senior filtration equipment, and level sensor passes through controller 6 and the electromagnetic valve electric connection on the connecting pipe.
It should be noted that, this sewage drainage system is functional strong, lets sewage discharge after thorough purification, and the mud after the sewage purification can also be retrieved the chemical fertilizer factory and recycled, lets the wastes material recycle to the environmental protection, this system can also carry out hydroelectric power generation moreover, and low carbon environmental protection energy saving slows down pressure for the municipal sewage, gives people the life and brings very big convenience.
In an embodiment, the water level meter 7, the control main board and the driving motor 8 in the sewage pretreatment system are connected with an external power supply, and the water level meter 7 is electrically connected with the driving motor 8 through the control main board.
A treatment method of a municipal sewage drainage treatment system comprises a sewage pretreatment system, an automatic sewage diversion system and a sewage grading purification system, when a city rains, rainwater brings garbage and sludge on the road surface to a sewer, the garbage and the sludge enter a drainage groove 3 through a water leakage hole 201 and a water inlet groove 202 on a drainage well cover 2, the water level in the drainage groove 3 is sensed through a water level gauge 7 in the drainage groove 3, when the blockage occurs, water is blocked in the drainage groove 3, the water level gauge 7 controls a driving motor 8 to brake through a control mainboard when detecting that the water level is too high, the driving motor 8 is used for braking to drive a gear in a gear box 9 to rotate, so as to drive a crushing roller 11 to rotate around a bearing 12, impurities in the sewage can be crushed through the rotation of the crushing roller 11, the sewage smoothly enters a diversion pipeline through the drainage groove 3, the diversion pipeline is respectively connected with a plurality of main sewage drainage pipelines through connecting pipes, the water level sensors are mounted inside the main sewage pipes, water flow in the main sewage pipes is sensed through the water level sensors, when water flow in a certain main sewage pipe reaches the maximum value, the electromagnetic valve on the main sewage pipe can be closed, so that the shunt pipe is conveyed to other main sewage pipes, the shunt purpose is achieved, when the water level is lower than the maximum value, the electromagnetic valve can be opened, sewage is continuously drained, the whole system is prevented from being paralyzed, the sewage is conveyed to the sewage treatment tank through the main sewage pipes, the hydroelectric generation equipment is mounted at the water outlet of the main sewage pipes, the impeller is driven to rotate through the water flow effect, so that the generator is driven to brake to generate electricity, the generator generates electricity to supply power to the water level sensors and the water quality sensors, the quality of the discharged sewage is sensed through the water quality sensors, and according to the grade of the sewage, the water flow is filtered through the primary filtering device, The middle-grade filtering device and the high-grade filtering device quickly filter sewage, so that the sewage purification quality is improved, the purified water is discharged into a river, and sludge and impurities can be recycled into a fertilizer plant to be concentrated and filter-pressed into fertilizer raw materials, so that waste is recycled, and a series of problems of urban waterlogging, surface water accumulation and the like are solved.
The sewage drainage system has strong functionality, is provided with a sewage pretreatment system, an automatic sewage diversion system and a sewage grading purification system, impurities in sewage can be quickly crushed by the sewage pretreatment system to prevent urban waterlogging caused by blockage, sewage can be drained to a pipeline with little water flow by the automatic sewage diversion system to improve the sewage drainage efficiency, a large amount of accumulated water caused by blockage in one pipeline is also avoided, then the discharged sewage is detected by the sewage grading purification system, purification treatment of different levels is carried out according to the pollution degree, so that the purification quality is improved, the sewage is discharged after being thoroughly purified, the sludge after sewage purification can be recycled to a fertilizer plant for reuse, waste is recycled, so that the environment is protected, the system can also carry out hydroelectric generation, low-carbon, environment-friendly and energy-saving, and can relieve pressure for municipal sewage discharge, brings great convenience to the life of people.
It should be noted that the detailed description of the present invention is not included in the prior art, or can be obtained directly from the market, and those skilled in the art can obtain the detailed description without creative efforts, and the detailed connection method has a very wide application in the field or daily life, and is not described in detail herein.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (9)
1. The utility model provides a municipal administration sewage drainage processing system which characterized in that: comprises a sewage pretreatment system, an automatic sewage diversion system and a sewage grading purification system; the sewage pretreatment system comprises a sewage drainage well and a purification device; the purification device is arranged in the sewage drainage well; a crushing mechanism is arranged in the purification device;
the automatic sewage diversion system comprises a diversion pipeline, a main sewage discharge pipeline, a water level sensor and an electromagnetic valve; the main sewage discharge pipeline is connected with the diversion pipeline; the water level sensor and the electromagnetic valve are arranged on the main sewage pipeline;
the sewage grading and purifying system comprises a hydroelectric generation device, a primary filtering device, a middle-grade filtering device, a high-grade filtering device and a water quality sensor; the hydraulic power generation device is arranged at a water outlet of each main sewage discharge pipeline, each main sewage discharge pipeline is connected with a sewage treatment tank, the sewage treatment tank is connected with primary filtering equipment, the primary filtering equipment is connected with intermediate filtering equipment, the intermediate filtering equipment is connected with high-grade filtering equipment, the high-grade filtering equipment is connected with a river pond, and water quality sensors are arranged at the water outlets of the primary filtering equipment, the intermediate filtering equipment and the high-grade filtering equipment;
the sewage drainage well is connected with the primary filtering equipment, the middle-grade filtering equipment and the high-grade filtering equipment through a diversion pipeline and a main sewage drainage pipeline.
2. The municipal sewage drainage system of claim 1, wherein: the top of the purification device is provided with a drainage well cover; the middle part of drainage well lid is equipped with a plurality of holes that leak, and the outside of drainage well lid is equipped with the intake chamber, is equipped with a plurality of locating holes on the intake chamber.
3. The municipal sewage drainage system of claim 1, wherein: the utility model discloses a water level gauge, including purifier, limiting plate, grinding roller, bearing, braking case, bearing, braking case, limiting plate, locating hole assorted locating lever, purifier's the top outside is equipped with the limiting plate, the top of limiting plate be equipped with the locating hole assorted locating lever, purifier's inside is equipped with water drainage tank, the braking case is installed to water drainage tank's bottom one side, the internally mounted of braking case has driving motor and gear box, the last crushing roller that is connected with of driving motor, the bearing is installed to the one end of crushing roller, the internally mounted of braking case has the control mainboard, the side slope department of braking case installs the fluviograph.
4. The municipal sewage drainage treatment system of claim 3, wherein: the driving motor and the gear box are both installed on the inner portion of the brake box through bolts, one end of the crushing roller is fixedly connected with the bearing, and the other end of the crushing roller is fixedly connected with a gear in the gear box.
5. The municipal sewage drainage treatment system of claim 2, wherein: the drainage well cover is arranged on the positioning rod at the top of the limiting plate through the positioning hole, and the limiting plate is arranged at the position of the sewer well opening.
6. The municipal sewage drainage system of claim 1, wherein: the automatic sewage diversion system comprises a plurality of diversion pipelines and a main sewage discharge pipeline, one end of each diversion pipeline is connected with the purification device, the other end of each diversion pipeline is connected with the plurality of main sewage discharge pipelines through connecting pipes respectively, a water level sensor is installed inside each main sewage discharge pipeline, and an electromagnetic valve is installed on each connecting pipe.
7. The municipal sewage drainage system of claim 1, wherein: the primary filtering equipment, the intermediate filtering equipment and the high-grade filtering equipment are internally provided with a plurality of filter screens and centrifugal pumps, the centrifugal pumps are connected with a processing workshop of a fertilizer plant through a blow-off pipe, and filter pressing and concentration equipment is arranged inside the processing workshop of the fertilizer plant.
8. The municipal sewage drainage system of claim 1, wherein: the hydroelectric generation device comprises an impeller, a generator and a battery box; hydroelectric generation device passes through the bolt and installs in the delivery port department of main blowdown pipe, and the battery and water quality sensor, controller and the water level sensor electric wire connection of battery incasement, water quality sensor pass through the electromagnetic valve electric connection on controller and the high-grade filtration equipment, and water level sensor passes through the electromagnetic valve electric connection on controller and the connecting pipe.
9. The municipal sewage drainage treatment system of claim 3, wherein: the water level meter, the control mainboard and the driving motor are all connected with an external power supply, and the water level meter is electrically connected with the driving motor through the control mainboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120643473.9U CN214936135U (en) | 2021-03-30 | 2021-03-30 | Municipal administration sewage drainage processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120643473.9U CN214936135U (en) | 2021-03-30 | 2021-03-30 | Municipal administration sewage drainage processing system |
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| Publication Number | Publication Date |
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| CN214936135U true CN214936135U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120643473.9U Active CN214936135U (en) | 2021-03-30 | 2021-03-30 | Municipal administration sewage drainage processing system |
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| CN (1) | CN214936135U (en) |
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2021
- 2021-03-30 CN CN202120643473.9U patent/CN214936135U/en active Active
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