CN220376469U - Submersible stirring system applied to sewage treatment by activated sludge process - Google Patents
Submersible stirring system applied to sewage treatment by activated sludge process Download PDFInfo
- Publication number
- CN220376469U CN220376469U CN202320131478.2U CN202320131478U CN220376469U CN 220376469 U CN220376469 U CN 220376469U CN 202320131478 U CN202320131478 U CN 202320131478U CN 220376469 U CN220376469 U CN 220376469U
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- CN
- China
- Prior art keywords
- submersible
- control system
- plc control
- activated sludge
- sewage treatment
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- 239000010802 sludge Substances 0.000 title claims abstract description 49
- 239000010865 sewage Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000008569 process Effects 0.000 title claims abstract description 25
- 238000003756 stirring Methods 0.000 title claims abstract description 17
- 239000012530 fluid Substances 0.000 abstract description 6
- 230000008859 change Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The utility model discloses a submersible stirring system applied to sewage treatment by an activated sludge process, which comprises a biochemical tank, wherein at least one submersible stirrer is fixedly arranged in the biochemical tank, the submersible stirrers are independently arranged, and a PLC (programmable logic controller) control system is connected to the submersible stirrers. The submersible stirrer, the flow velocity measuring instrument and the sludge concentration detecting instrument are connected with the PLC control system and the upper computer, the actual mixing degree of sludge and sewage in the sewage tank treated by the activated sludge process is mastered in real time through the sludge concentration and the fluid flow velocity in the tank, and the rotating speed of the stirrer is accurately adjusted in real time according to the feedback signals and the program, so that the stirring efficiency is improved, and the activated sludge process system is more flexible in adapting to the site working condition and convenient for the follow-up reformation of a sewage plant.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a submersible stirring system applied to sewage treatment by an activated sludge process.
Background
Submersible agitators are widely used in the sewage treatment industry, particularly in the activated sludge process, and serve an important role in uniformly mixing sewage, sludge particles and medicaments. Most sewage treatment plants at home and abroad adopt an activated sludge process. In fact, sewage agitation is not a static process. The change of working conditions, such as season, hydraulic load, water quality, sludge load, sludge concentration, reflux quantity and other working condition factors, has great influence on the actual mixing and stirring conditions in the tank. The existing sewage treatment of the sewage plant is more in scale improvement, the process parameters are greatly changed, the shape, the size and the depth of the tank body are different, and the model selection condition of the simulation equipment is often greatly different from the actual demand. If the flow rate of the fluid in the tank is too low, even though the sludge particles are not deposited at the bottom of the tank, the sludge particles are likely to agglomerate and flocculate, and larger deviation can be generated on the uniform dispersion condition of the actual sludge particles in the tank by measuring the concentration of the sludge. In addition, if the fluid flow rate in the tank is too low, too low a mixing rate after dosing can have an adverse effect on the full use of the medicament.
In reality, most sewage plants are provided with power frequency fixed-rotation-speed submersible stirrers, most of the selective installation of the submersible stirrers depend on field experience of engineers, and a large amount of mixed reflux liquid in sewage sludge can be generated in the sewage treatment process by an activated sludge method, so that huge fluid thrust is generated. Therefore, the actual situation often faces the situation that the rotation speed of the submersible mixer is excessive, the actual field requirement is excessive or the situation that the actual field requirement is not matched and the like. In addition, since the submersible mixer is installed at the bottom of the water, it is not easily perceived even if a malfunction occurs. The manual detection and regulation process on site is complex, and a great deal of electric power, manpower and time are wasted. Along with the requirements of energy conservation and emission reduction, a set of diving stirring control system which is simple to operate, can intelligently regulate speed and can meet the field uniform mixing effect is urgently needed.
Disclosure of Invention
The utility model aims to provide a submersible stirring system which is applied to sewage treatment by an activated sludge process and is simple to operate, and can intelligently regulate speed and meet the actual mixing requirements on site. The utility model solves the problems that the submersible mixer in the background technology cannot realize intelligent speed regulation according to the actual working condition on site or has complex regulation process, high time and labor cost, great energy consumption and the like.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a submersible stirring system for sewage treatment by activated sludge process comprises a biochemical tank, a single or a plurality of submersible stirrers, a single or a plurality of sludge concentration detectors, a single or a plurality of flow velocity detectors, a PLC control system, an industrial exchanger and an upper computer.
Preferably, the submersible mixer is provided with a variable frequency motor and a frequency modulator, the variable frequency motor is controlled and regulated by the frequency modulator to change the rotating speed of an impeller of the submersible mixer, the submersible mixer is independently and fixedly arranged in a biochemical pond when a plurality of submersible mixers are arranged, and the frequency modulator is connected with a PLC control system.
Preferably, the sludge detector is immersed in the biochemical tank and is connected with the PLC control system.
Preferably, the flow velocity measuring instrument is immersed in the biochemical tank and is connected with the PLC control system.
Preferably, the PLC control system can set the submersible mixer signal according to a control program and a command, and adjust the frequency of the variable frequency motor of the submersible mixer, so that the rotating speed of the impeller is changed. The PLC control system is preset with a biochemical pool type and size parameters. The PLC control system is preset with relative position parameters of the submersible stirrer arranged in the biochemical tank. The PLC control system is preset with position parameters of the flow velocity measuring instrument which is arranged in the biochemical pool and corresponds to the submersible stirrer. The PLC control system is connected with the upper computer through the industrial exchanger.
Preferably, the upper computer is used as a background for system data acquisition, monitoring and storage, and can also control the submersible mixer in real time.
Compared with the prior art, the utility model has the beneficial effects that:
1. the submersible stirrer, the flow velocity measuring instrument and the sludge concentration detecting instrument are connected with the PLC control system and the upper computer, the actual mixing degree of sludge and sewage in the sewage tank treated by the activated sludge process is mastered in real time through the sludge concentration and the fluid flow velocity in the tank, and the rotating speed of the stirrer is accurately adjusted in real time according to feedback signals and programs, so that the stirring efficiency is improved, and the activated sludge process system is more flexible in adapting to the site working condition and is convenient for the follow-up reformation of a sewage plant;
2. the PLC control system is used for realizing automatic speed change, automatic regulation and control and fault early warning according to the actual mixing degree setting program in the on-site biochemical tank, so that the full stirring in the tank is satisfied, and meanwhile, the manual regulation and control time, the labor cost and a large amount of unnecessary energy consumption can be saved;
3. the upper computer can monitor the submersible mixer, collect, store and analyze historical data, and experience data is provided for accurately simulating actual working conditions;
in summary, the utility model can connect the submersible mixer, the flow rate measuring instrument and the sludge concentration detecting instrument with the PLC control system and the upper computer, grasp the actual mixing degree of sludge and sewage in the sewage tank processed by the activated sludge method in real time through the sludge concentration and the fluid flow rate in the tank, accurately adjust the rotating speed of the mixer in real time according to the feedback signals and the programs, improve the mixing efficiency, enable the activated sludge system to adapt to the on-site working condition more flexibly and conveniently to the follow-up sewage plant transformation, realize automatic speed change and automatic regulation and control through the PLC control system according to the actual mixing degree setting programs in the on-site biochemical tank, realize fault early warning, not only meet the full mixing in the tank, but also save the manual regulation time, the labor cost and a large amount of unnecessary energy consumption, monitor the submersible mixer and collect, store and analyze the historical data through the upper computer, provide experience data for accurately simulating the actual working condition, solve the problems of redundant rotating speed of the submersible mixer in the sewage plant, excessive or unmatched on-site actual requirements, and the fact that the submersible mixer is not easy to detect on site, the manual detection and the regulation process is complex even if faults occur at the water bottom, and a large amount of power, time waste and the like are generated.
Drawings
FIG. 1 is a schematic top view of a submersible stirring system for sewage treatment by activated sludge process according to the present utility model;
fig. 2 is a working flow chart of a submersible stirring system applied to sewage treatment by an activated sludge process.
In the figure: 1. a biochemical pool; 2. submersible agitators; 3. a sludge concentration detector; 4. a flow rate meter; 5. a PLC control system; 6. and an upper computer.
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.
Referring to fig. 1 to 2, in the present utility model, a submersible stirring system for sewage treatment by activated sludge process comprises a biochemical tank 1, a single or multiple submersible stirrers 2, a single or multiple sludge concentration detectors 3, a single or multiple flow rate detectors 4, a PLC control system 5, an industrial switch, an upper computer 6, a submersible stirrer 2, a self-contained variable frequency motor and a frequency modulator, wherein the model number of the frequency modulator is: the Sieimer Flygt 4320 submersible stirrer is provided with an FPG-415 frequency modulator, and the model of the variable frequency motor is as follows: the Sieimer Flygt 4320 submersible stirrer is provided with a motor, and the model number of the submersible stirrer 2 is as follows: the Sieimer Flygt 4320, the PLC control system 5 is: the PLC control module of Siemens company is assembled, matched parameters such as pool type, size and the like are arranged in the PLC control system 5, the PLC control system 5 is connected with the matched components such as the submersible mixer 2 and the like, and the model of the sludge concentration detector 3 is as follows: hash SOLITAX sc, flow rate meter 4 model is: norteck Vectrino flow rate analyzer, mud concentration detector 3 is in same horizontal position in biochemical pond 1 with the flow rate analyzer 4 of homonymy, has preset the information of biochemical pond 1 in the PLC control system 5, and the information is the pond type and the size of biochemical pond 1, and PLC control system 5 presets parameter A, and parameter A is the position parameter that submersible mixer 2 installed in biochemical pond 1, and upper computer 6 model is: the industrial upper computer composed of hardware and software provided by Siemens company, association company, microsoft company and the like, the variable frequency motor is controlled and regulated by a frequency modulator so as to change the rotating speed of an impeller of the submersible mixer 2, the frequency modulator is independently and fixedly arranged in the biochemical tank 1 when the number of the submersible mixers 2 is multiple, the frequency modulator is connected with a PLC control system 5, a sludge concentration detector 3 is arranged in the biochemical tank 1 in a submerged manner and is connected with the PLC control system 5, a flow velocity detector 4 is arranged in the biochemical tank 1 in a submerged manner and is connected with the PLC control system 5, when the device is used, the horizontal distance between the sludge concentration detector 3 and the flow velocity detector 4 on the same side in the biochemical tank 1 is 0-0.5 m, and the horizontal distance between the sludge concentration detector 3 and the flow velocity detector 4 arranged on the side of the biochemical tank 1 is 0.7m-2m.
In the present utility model, when in use: the PLC control system 5 can set the signal of the submersible mixer 2 according to a control program and a command, adjust the frequency of a variable frequency motor of the submersible mixer 2, so as to change the rotating speed of an impeller, perform intelligent speed change, preset the relative position parameters of the submersible mixer 2 in the biochemical tank 1 by the PLC control system 5, preset the position parameters of the flow velocity measuring instrument 4 in the biochemical tank 1 relative to the corresponding submersible mixer 2, and connect the upper computer 6 through an industrial switch, and the upper computer 6 is used as a background for collecting, monitoring and storing system data and can also control the submersible mixer 2 in real time.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.
Claims (4)
1. Be applied to activated sludge process sewage treatment's dive mixing system, including biochemical pond (1), its characterized in that biochemical pond (1) in fixed mounting have at least one dive agitator (2), dive agitator (2) on be connected with PLC control system (5), biochemical pond (1) inside submergence install at least one mud concentration detector (3) and velocity of flow apparatus (4), mud concentration detector (3) and velocity of flow apparatus (4) all be connected with PLC control system (5), PLC control system (5) on be connected with host computer (6), PLC control system (5) in preset the information of biochemical pond (1), information be the pond type and the size of biochemical pond (1), PLC control system (5) preset parameter A, parameter A be dive agitator (2) and install the inside position parameter in biochemical pond (1), PLC control system (5) preset parameter B, parameter B be in the position parameter B of the inside the biochemical pond (1) of dive agitator (4).
2. The submersible stirring system for sewage treatment by the activated sludge process according to claim 1 is characterized in that the submersible stirrers (2) are independently arranged, and a variable frequency motor is arranged on the submersible stirrers (2).
3. The submersible stirring system for sewage treatment by an activated sludge process according to claim 1, wherein the horizontal position of the sludge concentration detector (3) is the same as that of the flow rate detector (4) on the same side, and the horizontal distance between the sludge concentration detector (3) and the flow rate detector (4) on the same side is 0-0.5-m.
4. The submersible stirring system for sewage treatment by an activated sludge process according to claim 1, wherein the sludge concentration detector (3) and the flow velocity measuring instrument (4) are arranged at the side of the biochemical tank (1) at a horizontal distance of 0.7m-2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320131478.2U CN220376469U (en) | 2023-01-18 | 2023-01-18 | Submersible stirring system applied to sewage treatment by activated sludge process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320131478.2U CN220376469U (en) | 2023-01-18 | 2023-01-18 | Submersible stirring system applied to sewage treatment by activated sludge process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220376469U true CN220376469U (en) | 2024-01-23 |
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ID=89572105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320131478.2U Active CN220376469U (en) | 2023-01-18 | 2023-01-18 | Submersible stirring system applied to sewage treatment by activated sludge process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220376469U (en) |
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2023
- 2023-01-18 CN CN202320131478.2U patent/CN220376469U/en active Active
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