CN109354156B - Aeration system of biochemical sewage treatment tank - Google Patents
Aeration system of biochemical sewage treatment tank Download PDFInfo
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- CN109354156B CN109354156B CN201811515871.1A CN201811515871A CN109354156B CN 109354156 B CN109354156 B CN 109354156B CN 201811515871 A CN201811515871 A CN 201811515871A CN 109354156 B CN109354156 B CN 109354156B
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- aeration
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- dissolved oxygen
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Activated Sludge Processes (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention provides an aeration system of a biochemical sewage treatment tank, which comprises a biochemical aeration tank, a stirring device arranged at the bottom of the biochemical aeration tank, a plurality of aerator assemblies symmetrically arranged on the inner wall of the biochemical aeration tank, a blower unit connected with the aerator assemblies through a pipeline system, and at least one group of blower units, wherein the blower unit is connected with the aerator assemblies through an electric two-way valve connecting pipeline A, a plurality of uniformly arranged aerators arranged on an aeration prepressing pipe and a plurality of dissolved oxygen testers arranged on the aeration prepressing pipe, and an upper computer respectively connected with the stirring device, the blower unit and the dissolved oxygen testers, compared with the prior art, the invention measures the dissolved oxygen content in the biochemical aeration tank in real time by arranging the dissolved oxygen testers, and controls the opening, closing and flow control of the blower unit, the oxygen content in the biochemical aeration tank is ensured to be in a stable range, and the requirement of microorganisms on oxygen is met.
Description
Technical Field
The invention relates to the technical field of biochemical sewage treatment, in particular to an aeration technology of a biochemical sewage treatment tank, and particularly relates to an aeration system of the biochemical sewage treatment tank.
Background
The biochemical aeration system of the current water treatment biomembrane method generally adopts the aeration method of installing the aeration disc at the bottom, and the installation mode causes that the system can not run because the whole biochemical pond needs to be emptied due to the abnormal trouble when the system needs to be overhauled, and the overhauling cost is obviously increased. In addition, the aeration quantity of the back section of a general biochemical tank does not need to be large, so the installation quantity of aeration disks is reduced in process requirements, the installation interval of the aeration disks is large, the aeration disks are not installed at the bottoms of part of biological membranes, and the aged biological membranes on all fillers cannot be washed away in a mode of increasing the aeration quantity, so that the aim of improving the water treatment capacity by facilitating the adhesion of the nascent strains on the fillers is fulfilled.
In the prior art, for example, patent numbers are: "CN 201510535823.9" provides an aeration system for a biochemical sewage treatment tank, which comprises an aeration main pipe fixed on the biochemical sewage treatment tank, wherein the aeration main pipe comprises an aeration longitudinal pipe arranged on one side of the biochemical sewage treatment tank, and an aeration transverse pipe crossing the biochemical sewage treatment tank and vertically communicated with the aeration longitudinal pipe, the aeration transverse pipe is uniformly provided with a plurality of branch ports, each branch port is detachably provided with a vertically arranged aeration vertical pipe, the bottom of the aeration vertical pipe is connected with two aeration branch pipes through a tee joint, the free ends of the aeration branch pipes are plugged, each aeration branch pipe is arranged in parallel and is perpendicular to the aeration transverse pipe, each aeration branch pipe is arranged at the bottom of the biochemical sewage treatment tank and is positioned below biochemical fillers, each aeration branch pipe is provided with a plurality of aeration main holes, each aeration branch pipe is sleeved and fixed with a rubber sleeve, the rubber sleeve wraps the aeration main holes and is provided with a plurality of aeration micropores, and a stripping flushing pipeline is arranged at the bottom of the biochemical filler.
Among the above-mentioned technique, because every branch interface demountable installation has the aeration standpipe of vertical setting, there are two aeration branch pipes in the bottom of this aeration standpipe through the three way connection, the free end shutoff of aeration branch pipe, the equal parallel arrangement of each aeration branch pipe and aeration branch pipe are violently managed perpendicularly with the aeration, every aeration branch pipe sets up in the bottom in biochemical sewage pond and is located the below of biochemical filler, be provided with a plurality of aeration main hole on every aeration branch pipe, the suit is fixed with the gum cover on the aeration branch pipe, this gum cover is provided with a plurality of aeration micropore on with aeration main hole parcel and the gum cover, the bottom of biochemical filler is provided with the deciduate and erodees the pipeline. Consequently, this biochemical sewage treatment pond adopts detachable aeration to be in charge of, and convenient the dismantlement need not to empty the sewage in the pond, guarantees to overhaul under the condition of normal processing and changes the aeration and in charge of, and is provided with the gum cover on the aeration is in charge of, utilizes the aeration micropore can produce a large amount of tiny bubbles, satisfies sufficient aeration rate, satisfies the demand of good oxygen fungus.
In the above, although the sludge can be cleaned by disassembling, the cleaning of the biochemical aeration tank is a very complicated work, even if the sludge can be disassembled for cleaning, the effect is not very prominent in practice, and each disassembling needs to be performed through the complicated cleaning work, such as completing the practical requirement. Meanwhile, the biochemical aeration tank is easy to form sludge accumulation, and the cleaning work is more complicated.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide an aeration system for a biochemical sewage treatment tank.
The specific scheme adopted is as follows:
an aeration system of a biochemical sewage treatment tank comprises
A biochemical aeration tank, a stirring device arranged at the bottom of the biochemical aeration tank, and a plurality of aerator assemblies symmetrically arranged on the inner wall of the biochemical aeration tank, or a plurality of uniformly arranged aerator assemblies arranged on the inner wall of the biochemical aeration tank,
a blower unit connected with the aerator assembly through a pipeline system,
the blower unit at least comprises a group of blower devices, the blower devices are connected with the aerator assembly through an electric two-way valve connecting pipeline A, the electric two-way valve is also connected with a pipeline B, the pipeline B is connected with the aerator assembly through an electromagnetic valve and a booster pump,
the aerator assembly comprises an aeration prepressing pipe, a plurality of aerators which are arranged uniformly and arranged on the aeration prepressing pipe and a plurality of dissolved oxygen measuring instruments which are arranged on the aeration prepressing pipe,
an upper computer which is respectively connected with the stirring device, the air blast device and the dissolved oxygen tester,
the dissolved oxygen determinator is used for determining the content of dissolved oxygen in the biochemical aeration tank in real time, transmitting a determined numerical value to a comparison module arranged in an upper computer, comparing the determined numerical value with a threshold value arranged in the comparison module, and sending a feedback signal to a control module if the determined value is smaller than a set threshold value, wherein the control module drives an execution module to control a frequency converter of a blowing device to increase the blowing flow rate or simultaneously drives a booster pump to pressurize an aeration prepressing pipe to increase the blowing flow rate; if the measured value is larger than the set threshold value, a feedback signal is sent to the control module, the control module drives the execution module to control the frequency converter of the air blowing device to reduce the air blowing flow, or simultaneously controls the servo motor to act, so that the rotation of the stirring device is accelerated, and the oxygen dissolution is accelerated.
Further, the stirring device is arranged in a control room at the bottom of the biochemical aeration tank, the stirring device comprises a servo motor arranged in the control room, and a sealing device arranged on the servo motor, the sealing device seals the biochemical aeration tank and the control room at the installation position of the servo motor, a coupler is arranged on the servo motor, a rotating shaft is arranged on the coupler, and at least one group of stirring diffusers which are arranged oppositely is arranged on the rotating shaft.
Furthermore, the stirring diffuser comprises a circular diffusion sheet, an installation part is arranged in the middle of the diffusion sheet, multistage diffusion blades are outwards arranged along the installation part, and air filtering holes are formed among the multistage diffusion blades.
Further, the multistage diffusion paddle comprises paddle blades arranged upwards, the inclination angle between each paddle blade and the diffusion sheet is 120-160 degrees, and the projection area of each paddle blade is provided with a diffusion area equal to the area of each paddle blade.
Further, the stirring devices adjacent up and down are arranged reversely, namely the inclination directions of the paddle blades are arranged reversely.
Further, the air blowing device comprises a base, a control motor arranged on the base, an air chamber arranged on one side of the motor, an air blower body arranged on the upper portion of the air chamber, an air filter arranged on the upper portion of the air blower body, and an oil dripping nozzle pipe arranged on the air blower body, wherein an air outlet is formed in one end of the air chamber, the control motor is connected with an inner offset rotor arranged on the air blower body through a transmission belt, and a fan blade is arranged on the inner offset rotor.
Furthermore, the blower body drives the inner offset rotor to eccentrically operate by controlling the motor, air is sucked, compressed and discharged by volume change between the blower blades in the rotor groove, and lubrication is automatically sent to the oil dripping nozzle pipe by utilizing the pressure difference on the blower body in operation and is dripped into the cylinder of the blower body so as to reduce friction and noise, and meanwhile, the air in the cylinder can be kept not to flow back.
Further, still be provided with ultrasonic wave level gauge, PH detector, hot type gas flowmeter, thermometer and mud concentration meter in the biochemical aeration pond, ultrasonic wave level gauge, PH detector, hot type gas flowmeter, thermometer and mud concentration meter are connected with the host computer respectively.
Further, the aerator and the stirring diffuser are arranged in a vertically staggered mode, and the aerator is arranged at the bottom of the stirring diffuser in the vertical direction.
Further, the dissolved oxygen tester and the aerator are arranged in a staggered mode, and the dissolved oxygen tester is vertically arranged at the bottom of the aerator.
The invention has the beneficial effects that:
compared with the prior art, the biochemical aeration tank is provided with the dissolved oxygen tester to test the dissolved oxygen content in the biochemical aeration tank in real time, and the oxygen content in the biochemical aeration tank is ensured to be relatively in a stable range by controlling the opening and closing and the flow control of the air blowing device, so that the requirement of microorganisms on oxygen is met.
Compared with the prior art, the invention has the advantages that the booster pump is arranged in front of the aeration pipeline, the booster pump has two main functions, firstly, when cleaning work is required, the flow of the fan device is maximized, and meanwhile, the booster device is started for boosting, so that the air pressure in the aeration pipeline is continuously increased, the purpose of dredging the surface of the aerator is achieved, and secondly, in the actual oxygen increasing process, the aeration pipeline needs to be boosted, and the oxygen flow is accelerated to be conveyed.
Compared with the prior art, the invention has the advantages that the inclination directions of the paddle blades are reversely arranged through the reverse arrangement of the upper stirring device and the lower stirring device, and the arrangement aims at firstly: the paddle piece that sets up about the reversal makes sewage in the biochemical aeration pond can not be according to a direction whirl, but the convection current that corresponds from top to bottom, and the silt that produces when avoiding a direction whirl is piled up, the second: the corresponding upper and lower convection currents cause the exchange of water flow and accelerate the diffusion of oxygen in the sewage.
Drawings
FIG. 1 is a system framework schematic of the present invention;
FIG. 2 is a system control schematic of the present invention;
FIG. 3 is a schematic view of the construction of the agitator diffuser of the present invention;
fig. 4 is a schematic view of the structure of the air blowing device of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides an aeration system for a biochemical sewage treatment tank, comprising
A biochemical aeration tank 3, a stirring device arranged at the bottom of the biochemical aeration tank 3, and a plurality of aerator assemblies symmetrically arranged on the inner wall of the biochemical aeration tank 3, or a plurality of uniformly arranged aerator assemblies arranged on the inner wall of the biochemical aeration tank 3,
a blower unit 2 connected with the aerator assembly through a pipeline system,
the blower unit 2 at least comprises a group of blower devices, the blower devices are connected with the aerator assembly through an electric two-way valve connecting pipeline A, the electric two-way valve is also connected with a pipeline B, the pipeline B is connected with the aerator assembly through an electromagnetic valve and a booster pump,
the aerator assembly comprises an aeration prepressing pipe, a plurality of aerators which are arranged uniformly and arranged on the aeration prepressing pipe and a plurality of dissolved oxygen measuring instruments which are arranged on the aeration prepressing pipe,
the aerator and the stirring diffuser 5 are arranged in a staggered manner in the vertical direction, and the aerator is arranged at the bottom of the stirring diffuser 5 in the vertical direction.
The dissolved oxygen tester and the aerator are arranged in a staggered mode, and the dissolved oxygen tester is vertically arranged at the bottom of the aerator.
An upper computer 1 which is respectively connected with the stirring device, the blast device and the dissolved oxygen determinator,
referring to fig. 1 and 2, fig. 1 exemplarily depicts two oxygen delivery systems, in fig. 1, at least 2 independent air blowing devices are matched, each air blowing device corresponds to a pipeline system, one air blowing device is connected with an aerator assembly a through an electric two-way valve a100 connecting pipeline a, the electric two-way valve a100 is further connected with a pipeline B, the pipeline B is connected with the aerator assembly a through an electromagnetic valve a101 and a booster pump a102, the aerator assembly a comprises an aeration prepressing pipe a103, a plurality of uniformly arranged aerators a104 arranged on the aeration prepressing pipe a103, and a plurality of dissolved oxygen measuring instruments a105 arranged on the aeration prepressing pipe a 103; the other blowing device is connected with an aerator assembly B through an electric two-way valve B100 and a pipeline II A, the electric two-way valve B200 is also connected with a pipeline II B, the pipeline II B is connected with the aerator assembly B through an electromagnetic valve B201 and a booster pump B202, the aerator assembly B comprises an aeration prepressing tube B203, a plurality of uniformly-arranged aerators B204 arranged on the aeration prepressing tube B203 and a plurality of dissolved oxygen measuring instruments B205 arranged on the aeration prepressing tube B203; compared with the prior art, the biochemical aeration tank is provided with the dissolved oxygen tester to test the dissolved oxygen content in the biochemical aeration tank in real time, and the oxygen content in the biochemical aeration tank is ensured to be relatively in a stable range by controlling the opening and closing and the flow control of the air blowing device, so that the requirement of microorganisms on oxygen is met. The specific principle is as follows: the dissolved oxygen determinator B205 or the dissolved oxygen determinator A105 is used for determining the dissolved oxygen content in the biochemical aeration tank 3 in real time, transmitting the determined value to a comparison module 300 arranged in the upper computer 1, comparing the determined value with a threshold value arranged in the comparison module 300, if the determined value is smaller than the set threshold value, sending a feedback signal to a control module 301, and the control module 301 driving an execution module 302 to control a frequency converter 27 of the air blowing device to increase the air blowing flow, or simultaneously driving a booster pump A102 or a booster pump B202 to pressurize an aeration prepressing pipe A103 or an aeration prepressing pipe B203 to increase the air blowing flow; if the measured value is larger than the set threshold value, a feedback signal is sent to the control module 301, the control module 301 drives the execution module 302 to control the frequency converter 27 of the air blowing device to reduce the air blowing flow, or simultaneously control the servo motor 7 to operate, accelerate the rotation of the stirring device and increase the oxygen dissolution.
In the invention, the booster pump is arranged in front of the aeration pipeline, and has two main functions, firstly, when cleaning is needed, the flow of the fan device is maximized, and simultaneously, the booster device is started for boosting, so that the air pressure in the aeration pipeline is continuously increased, the purpose of cleaning the surface of the aerator is achieved, and secondly, in the actual oxygen increasing process, the aeration pipeline needs to be boosted, so that the oxygen flow is accelerated to be conveyed.
In the above, the stirring device is disposed in the control room 4 at the bottom of the biochemical aeration tank 3, the stirring device includes a servo motor 7 disposed in the control room 4, and a sealing device 8 disposed on the servo motor 7, the sealing device 8 seals the biochemical aeration tank 3 and the control room 4 at the installation position of the servo motor 7, the servo motor 7 is provided with a coupling 9, the coupling 9 is provided with a rotating shaft 6, and at least one group of stirring diffusers 5 arranged oppositely is disposed on the rotating shaft 6. The stirring diffuser 5 comprises a circular diffusion sheet 51, a mounting part 50 arranged in the middle of the diffusion sheet, and a plurality of stages of diffusion blades arranged outwards along the mounting part 50, wherein air filtering holes 54 are arranged between the diffusion blades. The multistage diffusion paddle comprises upward paddle blades 52, the inclination angle between the paddle blades 52 and the diffusion sheet 51 is 120-160 degrees, and a diffusion area 53 with the same area as the paddle blades is arranged in the projection area of each paddle blade 52.
Preferably, the vertically adjacent stirring devices are arranged in opposite directions, i.e., the pitch directions of the paddle blades 52 are arranged in opposite directions. The invention enables the inclination direction of the paddle blade 52 to be reversely arranged through the reverse arrangement of the up-down stirring device, and the arrangement aims at the first: the paddle blade 52 that sets up from top to bottom makes the sewage in the biochemical aeration tank 3 can not be according to a direction whirl, but the convection current that corresponds from top to bottom, and the silt that produces when avoiding a direction whirl piles up, the second: the corresponding upper and lower convection currents cause the exchange of water flow and accelerate the diffusion of oxygen in the sewage.
In the above, the blower device includes a base, a control motor 20 disposed on the base, an air chamber 25 disposed on one side of the motor 20, a blower body 23 disposed on an upper portion of the air chamber 25, an air filter 22 disposed on an upper portion of the blower body 23, and a nozzle 24 disposed on the blower body 23, an air outlet 26 is disposed at one end of the air chamber 25, the control motor 20 is connected to an inner offset rotor disposed on the blower body 23 through a transmission belt 21, and a fan blade is disposed on the inner offset rotor. The blower body drives the inner offset rotor to eccentrically operate by controlling the motor, and enables the volume change between the blower blades in the rotor groove to suck, compress and discharge air, and during operation, the pressure difference on the blower body 23 is utilized to automatically send lubrication to the oil dripping nozzle pipe 24, and the lubrication is dripped into the cylinder of the blower body to reduce friction and noise, and simultaneously, the gas in the cylinder can be kept from flowing back.
In order to facilitate the determination of other parameters in the biochemical aeration tank 3, an ultrasonic liquid level meter, a pH detector, a thermal gas flow meter, a thermometer and a sludge concentration meter are further arranged in the biochemical aeration tank 3, and the ultrasonic liquid level meter, the pH detector, the thermal gas flow meter, the thermometer and the sludge concentration meter are respectively connected with an upper computer.
Compared with the prior art, the biochemical aeration tank is provided with the dissolved oxygen tester to test the dissolved oxygen content in the biochemical aeration tank in real time, and the oxygen content in the biochemical aeration tank is ensured to be relatively in a stable range by controlling the opening and closing and the flow control of the air blowing device, so that the requirement of microorganisms on oxygen is met.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. An aeration system of a biochemical sewage treatment tank is characterized by comprising
A biochemical aeration tank, a stirring device arranged at the bottom of the biochemical aeration tank, and a plurality of aerator assemblies symmetrically arranged on the inner wall of the biochemical aeration tank, or a plurality of uniformly arranged aerator assemblies arranged on the inner wall of the biochemical aeration tank,
a blower unit connected with the aerator assembly through a pipeline system,
the blower unit at least comprises a group of blower devices, the blower devices are connected with the aerator assembly through an electric two-way valve connecting pipeline A, the electric two-way valve is also connected with a pipeline B, the pipeline B is connected with the aerator assembly through an electromagnetic valve and a booster pump,
the aerator assembly comprises an aeration prepressing pipe, a plurality of aerators which are arranged uniformly and arranged on the aeration prepressing pipe and a plurality of dissolved oxygen measuring instruments which are arranged on the aeration prepressing pipe,
an upper computer which is respectively connected with the stirring device, the air blast device and the dissolved oxygen tester,
the dissolved oxygen determinator is used for determining the content of dissolved oxygen in the biochemical aeration tank in real time, transmitting a determined numerical value to a comparison module arranged in an upper computer, comparing the determined numerical value with a threshold value arranged in the comparison module, and sending a feedback signal to a control module if the determined value is smaller than a set threshold value, wherein the control module drives an execution module to control a frequency converter of a blowing device to increase the blowing flow rate or simultaneously drives a booster pump to pressurize an aeration prepressing pipe to increase the blowing flow rate; if the measured value is larger than the set threshold value, a feedback signal is sent to the control module, the control module drives the execution module to control the frequency converter of the air blowing device to reduce the air blowing flow, or simultaneously controls the servo motor to act, accelerates the rotation of the stirring device and accelerates the oxygen dissolution; the stirring device is arranged in a control room at the bottom of the biochemical aeration tank and comprises a servo motor arranged in the control room and a sealing device arranged on the servo motor, wherein the sealing device seals the biochemical aeration tank and the control room at the installation position of the servo motor, the servo motor is provided with a coupler, the coupler is provided with a rotating shaft, and at least one group of stirring diffusers which are arranged oppositely is arranged on the rotating shaft.
2. An aeration system for a biochemical sewage treatment tank according to claim 1, wherein the agitating diffuser includes a circular diffuser, a mounting portion provided in the middle of the diffuser, and multi-stage diffusing blades provided outwardly along the mounting portion, the multi-stage diffusing blades having air filtering holes provided therebetween.
3. An aeration system of a biochemical sewage treatment tank according to claim 2, wherein the multistage diffusion paddle comprises upward paddle blades, the inclination angle between the paddle blades and the diffusion sheet is 120-160 °, and the projection area of each paddle blade is provided with a diffusion area equivalent to the area of the paddle blade.
4. An aeration system for biochemical sewage treatment tanks according to claim 3, wherein the stirring devices adjacent up and down are disposed in reverse, i.e., the inclination directions of the paddle blades are disposed in reverse.
5. An aeration system for a biochemical sewage treatment tank according to claim 1, wherein the blower unit includes a base, a control motor provided on the base, an air chamber provided at one side of the motor, a blower body provided at an upper portion of the air chamber, an air filter provided at an upper portion of the blower body, and a nozzle tube provided on the blower body, the air chamber is provided at one end thereof with an air outlet, the control motor is connected to an inner offset rotor provided on the blower body through a transmission belt, and the inner offset rotor is provided thereon with a fan blade.
6. An aeration system for biochemical sewage treatment pool according to claim 5, wherein said blower body drives the inner offset rotor to run eccentrically by controlling the motor, and the volume change between the blower vanes in the rotor groove can suck, compress and discharge air, and during the operation, the pressure difference on the blower body is used to automatically send the lubrication to the oil dropping nozzle pipe, and the lubrication is dropped into the cylinder of the blower body to reduce friction and noise, and simultaneously, the gas in the cylinder can be kept from flowing back.
7. The aeration system of biochemical sewage treatment pond of claim 1, characterized in that, still be provided with ultrasonic wave level gauge, PH detector, hot gas flowmeter, thermometer and mud concentration meter in the biochemical aeration pond, ultrasonic wave level gauge, PH detector, hot gas flowmeter, thermometer and mud concentration meter are connected with the host computer respectively.
8. The aeration system of a biochemical sewage treatment tank according to claim 1, wherein the aerator is vertically disposed to be offset from the agitation diffuser, and the aerator is vertically disposed at a bottom of the agitation diffuser.
9. The aeration system of a biochemical sewage treatment tank according to claim 1, wherein the dissolved oxygen meter is disposed to be offset from the aerator, and the dissolved oxygen meter is disposed at the bottom of the aerator in a vertical direction.
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| CN201811515871.1A CN109354156B (en) | 2018-12-12 | 2018-12-12 | Aeration system of biochemical sewage treatment tank |
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| CN201811515871.1A CN109354156B (en) | 2018-12-12 | 2018-12-12 | Aeration system of biochemical sewage treatment tank |
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| CN113135621A (en) * | 2021-04-01 | 2021-07-20 | 胡跃芬 | Small-sized wastewater treatment equipment for high-concentration wastewater |
| CN113149243B (en) * | 2021-04-26 | 2022-08-19 | 辽宁科技学院 | Deep feedback aeration system, control system and method for sewage treatment |
| CN113754048A (en) * | 2021-10-12 | 2021-12-07 | 湖南三友环保科技有限公司 | Energy-saving consumption-reducing operation regulation and control system and regulation and control method for sewage treatment |
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