CN112794468A - Aeration system and aeration method - Google Patents
Aeration system and aeration method Download PDFInfo
- Publication number
- CN112794468A CN112794468A CN202110386042.3A CN202110386042A CN112794468A CN 112794468 A CN112794468 A CN 112794468A CN 202110386042 A CN202110386042 A CN 202110386042A CN 112794468 A CN112794468 A CN 112794468A
- Authority
- CN
- China
- Prior art keywords
- dissolved oxygen
- amount
- pipeline
- circulating water
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
Abstract
The invention provides an aeration system and an aeration method, and relates to the technical field of water treatment equipment. Aeration systems includes the air source, air feed mechanism, a plurality of circulating water pump, the effluent water sump, a plurality of efflux aerator, treater and sensor, air feed mechanism sets up in the effluent water sump outside and connects in the treater, a plurality of efflux aerator all set up in the effluent water sump, air feed mechanism connects respectively in a plurality of efflux aerator through first pipeline, the air source passes through the second pipeline and connects respectively in a plurality of efflux aerator, the sensor sets up in the effluent water sump and connects in the treater, the sensor is used for measuring the dissolved oxygen quantity in the effluent water sump and transmits it for the treater, the treater is than dissolved oxygen quantity and the size of presetting scope maximum value and minimum, control air feed mechanism or circulating water pump open and stop.
Description
Technical Field
The invention relates to the technical field of water treatment equipment, in particular to an aeration system and an aeration method.
Background
With the rapid development of social economy in China and the high importance of China on environmental protection, the construction of urban sewage treatment plants becomes the requirement for environmental protection. However, sewage treatment plants belong to energy-intensive industries, and a large amount of energy consumption is not beneficial to energy conservation and consumption reduction. In the sewage treatment process, aeration modes such as micropore aeration, diving aeration, surface aerator and the like are combined with a blower to increase the air supply amount of sewage treatment, so that aerobic organisms in a sewage tank are decomposed. The existing system combining the air blower and the aerator cannot accurately control dissolved oxygen in the sewage tank, so that the problems of more dissolved oxygen in the sewage tank, large energy consumption of the air blower, short service life of the air blower, increased production cost and the like are caused.
Disclosure of Invention
The invention aims to provide an aeration system and an aeration method, which are used for controlling the amount of dissolved oxygen in a sewage tank and reducing the energy consumption of an air supply mechanism.
In order to achieve the purpose, the invention adopts the following technical scheme:
an aeration system comprises an air source, an air supply mechanism, a plurality of circulating water pumps, a sewage tank, a plurality of jet aerators, a processor and a sensor, wherein the air supply mechanism is arranged outside the sewage tank and connected to the processor;
the second pipeline is provided with a control valve which is used for controlling the selective communication of the second pipeline and the outside air.
Preferably, a main pipe electric valve is arranged on the first pipeline and used for controlling the communication or closing of the first pipeline.
Preferably, the aeration system further comprises a gas supply branch pipe, one end of the gas supply branch pipe is connected to the first pipeline, and the other end of the gas supply branch pipe is connected to the jet aerator.
Preferably, the jet aerator comprises a gas mixing bin and an output nozzle connected to the gas mixing bin, and the gas supply branch pipe and the circulating water pump are respectively connected to the gas mixing bin.
Preferably, a silencer is arranged at one end of the second pipeline far away from the first pipeline.
Preferably, the first pipeline is provided with an orifice plate flowmeter for measuring the air flow rate flowing through the first pipeline.
Preferably, the first conduit comprises a bellow compensator.
Preferably, the circulating water pump is connected to the sewage tank and the jet aerator through a third pipeline, and a liquid flow meter is arranged on the third pipeline.
An aeration method adopting the aeration system comprises the following steps:
s1, starting a control valve, starting a single circulating water pump, measuring the amount of dissolved oxygen in the sewage tank by the sensor after a certain time, transmitting the amount of dissolved oxygen to the processor, maintaining the state if the amount of dissolved oxygen is within a preset value range, and adopting intermittent aeration if the amount of dissolved oxygen is greater than the maximum value of the preset value range; if the amount of the dissolved oxygen is smaller than the minimum value of the preset value range, starting a plurality of circulating water pumps;
s2, after a plurality of circulating water pumps are started for a certain time, the sensor measures the amount of dissolved oxygen in the sewage tank and transmits the amount of dissolved oxygen to the processor, the state is maintained if the amount of dissolved oxygen is within a preset value range, and intermittent aeration is adopted or part of the circulating water pumps are closed if the amount of dissolved oxygen is larger than the maximum value of the preset value range; if the amount of the dissolved oxygen is smaller than the minimum value of the preset value range, the gas supply mechanism is started to supply gas;
s3, after the gas supply mechanism supplies gas for a certain time, the sensor measures the amount of dissolved oxygen in the sewage tank and transmits the amount of dissolved oxygen to the processor, if the amount of dissolved oxygen is within the range of the preset value, the state is maintained, and if the amount of dissolved oxygen is outside the range of the preset value, the gas supply mechanism is adjusted to reduce the amount of supplied gas and judge again until the amount of dissolved oxygen is within the range of the preset value.
The invention has the beneficial effects that:
the invention provides the needed air for the jet flow aerators through the air source or the air supply mechanism, so that each jet flow aerator is correspondingly connected with each circulating water pump. When utilizing the air supply of air source, when the air that jet aerator needs is few, set up a circulating water pump work, circulating water pump draws water from the sewage pond, utilizes pressure differential to make in the outside air passes through the second pipeline and gets into jet aerator, if a circulating water pump work, the air that the air source provided can not satisfy the working requirement, then opens many circulating water pump work, increases the quantity of dissolved oxygen in the sewage pond. If a plurality of circulating water pumps work together and the air provided by the air source can not meet the requirement, the air supply mechanism is opened to supply air. A sensor is provided in the lagoon to detect the amount of dissolved oxygen in the lagoon and deliver it to the processor. The processor judges that if the amount of the dissolved oxygen in the sewage tank is excessive, the gas supply mechanism or the circulating water pump is controlled to be closed; if the amount of the dissolved oxygen in the sewage tank is less, the opening of the air supply mechanism or the circulating water pump is controlled.
The invention also provides a control method of the aeration system, which has simple structure and convenient implementation, can quickly control the amount of dissolved oxygen in the sewage tank and reduce the energy consumption of the blower.
Drawings
FIG. 1 is a schematic view of the structure provided by an aeration system according to an embodiment of the present invention;
FIG. 2 is a flow chart provided by an aeration method according to an embodiment of the present invention.
In the figure:
1. an air supply mechanism; 11. a first pipeline; 111. a main pipe electric valve; 112. an orifice plate flowmeter; 113. a ripple compensator; 114. a thermometer, 115, a first pressure gauge; 116. a first shut-off valve; 12. a second pipeline; 121. a control valve; 122. a muffler; 123. a negative pressure gauge; 13. a gas supply branch pipe; 131. branch pipe electromagnetic valves;
2. a water circulating pump; 21. a third pipeline; 211. a liquid flow meter; 212. a second pressure gauge; 213. a second stop valve; 214. an inlet electric valve;
3. a sewage tank;
4. a jet aerator; 41. a gas mixing bin; 42. and (4) an output nozzle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the embodiments of the present invention, the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The embodiment provides an aeration system, which relates to the technical field of water treatment equipment and is shown in figure 1. Aeration systems includes the air source, air feed mechanism 1, a plurality of circulating water pump 2, effluent water sump 3, a plurality of efflux aerator 4, treater and sensor, air feed mechanism 1 sets up at 3 outsides of effluent water sump and connects in the treater, a plurality of efflux aerator 4 all set up in effluent water sump 3, air feed mechanism 1 connects respectively in a plurality of efflux aerator 4 through first pipeline 11, the air source connects respectively in a plurality of efflux aerator 4 through second pipeline 12, the sensor sets up in effluent water sump 3 and is connected in the treater, the sensor is used for measuring the dissolved oxygen quantity in effluent water sump 3 and transmits it for the treater, the treater is than the size of dissolved oxygen quantity and predetermined scope maximum value and minimum, control air feed mechanism 1 or circulating water pump 2 opens and stops.
In the embodiment, the air source or the air supply mechanism 1 is used for providing required air for the jet aerators 4, so that each jet aerator 4 is correspondingly connected to each circulating water pump 2. When utilizing the air supply of air source, when the air that jet aerator 4 needs is few, set up a circulating water pump 2 work, circulating water pump 2 draws water from sewage pond 3 in, utilize the pressure differential to make outside air pass through in second pipeline 12 gets into jet aerator 4, if a circulating water pump 2 work, the air that the air source provided can not satisfy the work demand, then open the work of many circulating water pumps 2, increase the quantity of dissolved oxygen in the sewage pond 3. If a plurality of circulating water pumps 2 work together and the air provided by the air source can not meet the requirement, the air supply mechanism 1 is opened to supply air. A sensor is provided in the wastewater tank 3 so that the amount of dissolved oxygen in the wastewater tank 3 can be detected and transmitted to the disposer. The processor judges that if the amount of the dissolved oxygen in the sewage pool 3 is excessive, the air supply mechanism 1 or the circulating water pump 2 is controlled to be closed; if the amount of dissolved oxygen in the sewage tank 3 is small, the opening of the air supply mechanism 1 or the circulating water pump 2 is controlled.
In particular, as shown in fig. 1, the device further comprises a gas supply branch pipe 13, wherein one end of the gas supply branch pipe 13 is connected to the first pipeline 11, and the other end is connected to the jet aerator 4. Preferably, the gas supply means 1 comprise a magnetically levitated blower and a first pipe 11 connected to the magnetically levitated blower. In this embodiment, a plurality of air supply branch pipes 13 are provided, one end of each air supply branch pipe 13 is connected in series to the first pipeline 11, and the other end is connected to each of the plurality of jet aerators 4. The magnetic suspension air blower has the advantages of energy conservation, high efficiency, convenient installation and the like, connects the plurality of air supply branch pipes 13 to the plurality of jet aerators 4 respectively, supplies air for the plurality of jet aerators 4, and has simple structure and convenient installation. Preferably, a branch electromagnetic valve 131 is arranged on the air supply branch 13, and the branch electromagnetic valve 131 is used for controlling the communication or closing of the air supply branch 13 and the jet aerator 4. Preferably, the magnetic levitation blower is driven by a high frequency converter.
Specifically, as shown in fig. 1, a main pipe electric valve 111 is provided on the first pipeline 11, and the main pipe electric valve 111 is used for controlling the communication or closing of the first pipeline 11. The electric valve 111 of the main pipeline is arranged on the first pipeline 11, if the magnetic suspension air blower is not used, the electric valve 111 of the main pipeline is closed, and if the magnetic suspension air blower is used, the electric valve 111 of the main pipeline is opened to communicate the magnetic suspension air blower with the jet aerator 4.
In particular, as shown in fig. 1, the second line 12 is provided with a control valve 121, and the control valve 121 is used for controlling the second line 12 to selectively communicate with the outside air. The control valve 121 is opened, so that the air in the air source can be transmitted into the jet aerator 4 through the air supply branch pipe 13, the structure is simple, the installation is convenient, and the cost is saved. The control valve 12 is closed and the air provided by the magnetic levitation blower is prevented from flowing out through the second line 12 to the outside air. A control valve 121 is arranged on the second pipeline 12, when the magnetic suspension blower works, the control valve 121 is closed, and air provided by the magnetic suspension blower flows into the air supply branch pipe 13 and the jet aerator 4 from the first pipeline 11. When the magnetic suspension blower is not in operation, the control valve 121 is opened to allow the external air to flow into the air supply branch pipe 13 and the jet aerator 4 through the second pipe 12.
In particular, as shown in fig. 1, the end of the second pipe 12 remote from the first pipe 11 is provided with a silencer 122. A silencer 122 is provided on the second pipe 12 to reduce noise.
Preferably, as shown in fig. 1, a negative pressure gauge 123 (the specific installation position is shown in fig. 1) is arranged at the position, close to the connection position of the second pipeline 12 and the first pipeline 11, of the first pipeline 11, when the magnetic suspension blower does not work, the circulating water pump 2 pumps water, air enters the jet aerator 4 through the second pipeline 12, the pressure at the left side of the negative pressure gauge 123 is smaller than that of the right pipeline, at this time, the magnetic suspension blower does not work, and the circulating water pump 2 pumps oxygen from the outside; if the pressure on the left side of the negative pressure gauge 123 is larger than that of the pipeline on the right side, the system is abnormal, and the negative pressure gauge 123 gives an alarm.
In particular, as shown in FIG. 1, an orifice plate flow meter 112 is disposed on the first pipeline 11, the orifice plate flow meter 112 being used to measure the flow rate of air flowing through the first pipeline 11. The magnetic suspension air blower extracts external air, so that the air is conveyed to the jet aerator 4 through the first pipeline 11, the first pipeline 11 is provided with the orifice plate flowmeter 112, the air flow passing through the first pipeline 11 is measured, and the structure is simple.
In particular, as shown in fig. 1, the first line 11 comprises a ripple compensator 113. Because the air outlet of the magnetic suspension blower is made of steel pipes, the first pipeline 11 is also made of steel pipes, and the corrugated compensator 113 is arranged to be connected with the first pipeline 11 and the air outlet of the magnetic suspension blower, so that the magnetic suspension blower has the effects of shock absorption and the like.
Preferably, as shown in fig. 1, the first pipeline 11 is further provided with a temperature gauge 114, a first pressure gauge 115 and a first stop valve 116, the temperature gauge 114 is used for detecting the temperature of the first pipeline 11, the first pressure gauge 115 is used for detecting the pressure of the gas flowing through the first pipeline 11, and the first stop valve 116 has the functions of stopping, regulating and throttling.
Specifically, as shown in fig. 1, the circulating water pump 2 is connected to the wastewater tank 3 and the jet aerator 4 through a third pipe 21, and a liquid flow meter 211 is provided on the third pipe 21. Preferably, the circulating water pump 2 in the present embodiment is a centrifugal water pump, and the centrifugal water pump is driven by a common frequency converter. The circulating water pump 2 is connected to the sewage tank 3 and the jet aerator 4 through a third pipeline 21, the circulating water pump 2 pumps water from the sewage tank 3 and flows into the jet aerator 4, and outside air enters the jet aerator 4 to be mixed with water, so that the air is discharged into the sewage tank 3 through the output end of the jet aerator 4. A liquid flow meter 211 is provided on the third pipeline 21 to facilitate detection of the water flow through the third pipeline 21. Preferably, an inlet electric valve 214 is further disposed on the third pipeline 21, and the inlet electric valve 214 is disposed at a connection end of the wastewater tank 3 and the circulating water pump 2. Preferably, a second pressure gauge 212 and a second stop valve 213 are further disposed on the third pipeline 21 for testing the pressure inside the third pipeline 21, so as to ensure safe use.
Specifically, as shown in fig. 1, the jet aerator 4 includes a gas mixing bin 41 and an output nozzle 42 connected to the gas mixing bin 41, and the gas supply branch pipe 13 and the circulating water pump 2 are connected to the gas mixing bin 41, respectively. Liquid that flows at a high speed mixes at thoughtlessly the air storehouse 41 acutely with the air that air feed mechanism 1 or air source provided, form the gas-liquid mixture, then discharge to the effluent water sump 3 through delivery nozzle 42, the air rises because the effect of strong shear force forms slight bubble in the water, in the perpendicular efflux district of efflux aerator 4, realize the abundant contact of gas-liquid, in horizontal efflux district, liquid around delivery nozzle 42 is shaken by acutely, and simultaneously, the microbubble can be detained for a long time in effluent water sump 3, improve the efficiency of oxygenating, thereby conveniently decompose the aerobe in effluent water sump 3.
To achieve the above object, as shown in fig. 2, the present embodiment further provides an aeration method using the above aeration system, comprising the following steps:
s1, opening the control valve 121, opening the single circulating water pump 2, after a certain time, measuring the dissolved oxygen amount Dos in the sewage tank 3 by the sensor and transmitting the dissolved oxygen amount Dos to the processor, if the dissolved oxygen amount Dos is within a preset value range, maintaining the existing state, and if the dissolved oxygen amount Dos is larger than the maximum value of the preset value range, adopting intermittent aeration; if the amount of dissolved oxygen Dos is smaller than the minimum value of the preset value range, starting a plurality of circulating water pumps 2;
s2, after the plurality of circulating water pumps 2 are started for a certain time, the sensor measures the amount Dos of the dissolved oxygen in the sewage tank 3 and transmits the amount Dos of the dissolved oxygen to the processor, the judgment is carried out again, if the amount Dos of the dissolved oxygen is within the range of the preset value, the existing state is maintained, and if the amount Dos of the dissolved oxygen is larger than the maximum value of the range of the preset value, intermittent aeration is adopted or part of the circulating water pumps 2 are closed; if the amount of dissolved oxygen Dos is smaller than the minimum value of the preset value range, the gas supply mechanism 1 is started to supply gas;
and S3, after the gas supply mechanism 1 supplies gas for a certain time, the sensor measures the amount Dos of the dissolved oxygen in the sewage pool 3 and transmits the amount Dos of the dissolved oxygen to the processor, if the amount Dos of the dissolved oxygen is within a preset value range, the existing state is maintained, and if the amount Dos of the dissolved oxygen is outside the preset value range, the gas supply mechanism 1 reduces the amount of the supplied gas and judges the amount of the supplied gas again until the amount Dos of the dissolved oxygen is within the preset value range.
The aeration method described above will be described in further detail with reference to the flow chart shown in fig. 2. In the aeration method provided by the embodiment, the amount of dissolved oxygen measured in the wastewater tank 3 is represented by Dos, and a preset value range is set, wherein Dos is not less than Do1 and not more than Do 2.
S1, opening the control valve 121, checking the negative pressure gauge 123, confirming that no negative pressure exists in the second pipeline 12, starting one circulating water pump 2 first, judging whether the water yield of the circulating water pump 2 reaches a preset water yield value or not by the processor according to a feedback signal of the liquid flowmeter 211, adjusting the circulating water pump 2 to enable the water yield to reach the preset water yield value if the water yield of the circulating water pump 2 does not reach the preset water yield value, detecting the amount Dos of dissolved oxygen in the sewage tank 3 after T time by the sensor if the water yield of the circulating water pump 2 reaches the preset water yield value, indicating that the measured amount Dos of dissolved oxygen in the sewage tank 3 after T time reaches a standard if the amount Dos is not less than Do1 and not more than Do2, and keeping the existing state and only starting one circulating water pump 2; if Dos is more than Do2, the Dos is over-standard, which indicates that the water treatment capacity is less and intermittent aeration is needed; if Dos is less than Do1, the dissolved oxygen amount Dos is not up to the standard, and the next step is carried out.
When the second pipe 12 is in a negative pressure state, it is checked that there is a failure and the cause of the failure is self-checked.
S2, starting the circulating water pumps 2, detecting the amount of dissolved oxygen in the sewage tank 3 by the sensor, and if Do1 is not less than Do2, indicating that the measured amount of dissolved oxygen in the sewage tank 3 reaches the standard after T time and keeping the existing state; if Dos is more than Do2, the Dos of the dissolved oxygen is out of standard, the water treatment capacity is low, and intermittent aeration is adopted or part of the circulating water pump 2 is required to be closed; if Dos is less than Do1, the dissolved oxygen amount Dos is not up to the standard, and the next step is carried out.
S3, starting the magnetic suspension blower to supply air to the jet aerator 4, judging whether the air supply quantity of the magnetic suspension blower reaches an air supply preset value or not by the processor according to a feedback signal of the orifice plate flowmeter 112, if the air supply quantity does not reach the air supply preset value, adjusting the magnetic suspension blower to enable the air supply quantity to reach the air supply preset value, if the air supply preset value is reached, detecting the dissolved oxygen quantity in the sewage pool 3 by the sensor, judging by the processor, and if Do1 is not less than Dos not less than Do2, indicating that the dissolved oxygen quantity Dos reaches the standard and keeping the existing state; if Do > Do2 exceeds standard, adjusting the air supply speed of the air supply mechanism 1, and after T time, judging again until Do1 is less than or equal to Do 2. If Dos < Do1 is not met, the condition is less, and the process water quantity condition and the accuracy of detection of the sensor need to be verified.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. An aeration system, which is characterized by comprising an air source, an air supply mechanism (1), a plurality of circulating water pumps (2), a sewage tank (3), a plurality of jet aerators (4), a processor and a sensor, wherein the air supply mechanism (1) is arranged outside the sewage tank (3) and connected to the processor, the plurality of jet aerators (4) are arranged in the sewage tank (3), the air supply mechanism (1) is respectively connected to the plurality of jet aerators (4) through a first pipeline (11), the air source is respectively connected to the plurality of jet aerators (4) through a second pipeline (12), the sensor is arranged in the sewage tank (3) and connected to the processor, the sensor is used for measuring the amount of dissolved oxygen in the sewage tank (3) and transmitting the amount of dissolved oxygen to the processor, and the processor compares the amount of dissolved oxygen with the maximum value and the minimum value of a preset value range, controlling the starting and stopping of the gas supply mechanism (1) or the circulating water pump (2);
a control valve (121) is arranged on the second pipeline (12), and the control valve (121) is used for controlling the selective communication of the second pipeline (12) and the outside air.
2. An aeration system according to claim 1, wherein a main pipe electric valve (111) is arranged on the first pipeline (11), and the main pipe electric valve (111) is used for controlling the communication or closing of the first pipeline (11).
3. An aeration system according to claim 1, further comprising a gas supply branch (13), said gas supply branch (13) being connected at one end to said first pipeline (11) and at the other end to said jet aerator (4).
4. An aeration system according to claim 3, characterized in that the jet aerator (4) comprises a gas mixing tank (41) and an output nozzle (42) connected to the gas mixing tank (41), the gas supply branch pipe (13) and the circulating water pump (2) being connected to the gas mixing tank (41), respectively.
5. An aeration system according to claim 1, wherein the end of the second conduit (12) remote from the first conduit (11) is provided with a silencer (122).
6. An aeration system according to claim 1, wherein an orifice flow meter (112) is provided on the first conduit (11), the orifice flow meter (112) being adapted to measure the air flow through the first conduit (11).
7. An aeration system according to claim 1, wherein the first conduit (11) comprises a bellow compensator (113).
8. An aeration system according to claim 1, characterized in that the circulating water pump (2) is connected to the basin (3) and the jet aerator (4) by a third pipe (21), a liquid flow meter (211) being arranged on the third pipe (21).
9. An aeration method using the aeration system according to any one of claims 1 to 8, comprising the steps of:
s1, opening a control valve (121), starting a single circulating water pump (2), measuring the amount of dissolved oxygen in the sewage tank (3) by the sensor after a certain time, transmitting the amount of dissolved oxygen to the processor, maintaining the state if the amount of dissolved oxygen is within a preset value range, and adopting intermittent aeration if the amount of dissolved oxygen is greater than the maximum value of the preset value range; if the amount of the dissolved oxygen is smaller than the minimum value of the preset value range, starting a plurality of circulating water pumps (2);
s2, after a plurality of circulating water pumps (2) are started for a certain time, the sensor measures the amount of dissolved oxygen in the sewage tank (3) and transmits the amount of dissolved oxygen to the processor, the state is maintained if the amount of dissolved oxygen is within a preset value range, and intermittent aeration is adopted or part of the circulating water pumps (2) are closed if the amount of dissolved oxygen is larger than the maximum value of the preset value range; if the amount of the dissolved oxygen is smaller than the minimum value of the preset value range, the gas supply mechanism (1) is started to supply gas;
s3, after the gas supply mechanism (1) supplies gas for a certain time, the sensor measures the amount of dissolved oxygen in the sewage pool (3) and transmits the amount of dissolved oxygen to the processor, if the amount of dissolved oxygen is within the range of the preset value, the state is maintained, and if the amount of dissolved oxygen is outside the range of the preset value, the gas supply mechanism (1) is adjusted to reduce the amount of supplied gas and judge again until the amount of dissolved oxygen is within the range of the preset value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110386042.3A CN112794468B (en) | 2021-04-12 | 2021-04-12 | Aeration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110386042.3A CN112794468B (en) | 2021-04-12 | 2021-04-12 | Aeration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112794468A true CN112794468A (en) | 2021-05-14 |
| CN112794468B CN112794468B (en) | 2021-07-20 |
Family
ID=75816664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110386042.3A Active CN112794468B (en) | 2021-04-12 | 2021-04-12 | Aeration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112794468B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3920550A (en) * | 1972-09-21 | 1975-11-18 | Environment One Corp | Process and equipment for automatic chemical-biological wastewater treatment with provisions for recycle and reuse |
| DE19909226A1 (en) * | 1998-07-09 | 2000-01-13 | Egon Manfred Roesner | A controlled eductor is used to transfer atmospheric air into water for the aeration of aquariums and fish ponds, etc. |
| JP2011011098A (en) * | 2009-03-04 | 2011-01-20 | Blue Aqua Industry Kk | Water purification apparatus |
| CN202625921U (en) * | 2012-05-30 | 2012-12-26 | 绍兴市国富环保科技有限公司 | Gas injection self-priming bidirectional adjustable high-efficiency low-consumption jet aeration system |
| CN202758178U (en) * | 2011-12-02 | 2013-02-27 | 深圳达实智能股份有限公司 | Intelligent dynamic aeration control system |
| CN205973958U (en) * | 2016-08-30 | 2017-02-22 | 北京天诚同创电气有限公司 | Aeration system |
| CN110606545A (en) * | 2019-10-23 | 2019-12-24 | 成都云尚物联环境科技有限公司 | Aeration system for sewage treatment in villages and towns and control method thereof |
| CN210461138U (en) * | 2019-07-26 | 2020-05-05 | 亿昇(天津)科技有限公司 | Pneumatic emptying valve closing device of blower |
| CN112239311A (en) * | 2020-10-28 | 2021-01-19 | 桂林电子科技大学 | Micro-aeration acidification control wastewater treatment device and method |
-
2021
- 2021-04-12 CN CN202110386042.3A patent/CN112794468B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3920550A (en) * | 1972-09-21 | 1975-11-18 | Environment One Corp | Process and equipment for automatic chemical-biological wastewater treatment with provisions for recycle and reuse |
| DE19909226A1 (en) * | 1998-07-09 | 2000-01-13 | Egon Manfred Roesner | A controlled eductor is used to transfer atmospheric air into water for the aeration of aquariums and fish ponds, etc. |
| JP2011011098A (en) * | 2009-03-04 | 2011-01-20 | Blue Aqua Industry Kk | Water purification apparatus |
| CN202758178U (en) * | 2011-12-02 | 2013-02-27 | 深圳达实智能股份有限公司 | Intelligent dynamic aeration control system |
| CN202625921U (en) * | 2012-05-30 | 2012-12-26 | 绍兴市国富环保科技有限公司 | Gas injection self-priming bidirectional adjustable high-efficiency low-consumption jet aeration system |
| CN205973958U (en) * | 2016-08-30 | 2017-02-22 | 北京天诚同创电气有限公司 | Aeration system |
| CN210461138U (en) * | 2019-07-26 | 2020-05-05 | 亿昇(天津)科技有限公司 | Pneumatic emptying valve closing device of blower |
| CN110606545A (en) * | 2019-10-23 | 2019-12-24 | 成都云尚物联环境科技有限公司 | Aeration system for sewage treatment in villages and towns and control method thereof |
| CN112239311A (en) * | 2020-10-28 | 2021-01-19 | 桂林电子科技大学 | Micro-aeration acidification control wastewater treatment device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112794468B (en) | 2021-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9340438B2 (en) | Systems and methods for delivering dissolved gases into force-main and gravity sewers | |
| CN109704463A (en) | A kind of AAO process spent water treatment plant carbon source optimizing dosing system | |
| CN112794468B (en) | Aeration method | |
| CN114644398A (en) | Garbage leachate collecting and processing system | |
| CN215861023U (en) | High-efficiency energy-saving air lift pump | |
| CN112527035B (en) | Secondary water supply intelligent operation data monitoring platform | |
| CN206408013U (en) | A kind of waste water automated programming system | |
| CN205296301U (en) | No negative pressure water supply equipment of pressure -stabilizing box formula intelligence | |
| CN214031868U (en) | Sewage treatment return sludge amount control system | |
| CN207210224U (en) | A kind of anaerobic sludge digestion foam automaton | |
| CN112811577A (en) | PLC control system and control method for MC-MBBR (monomer blend reactor) process water pump and aerator of sewage treatment plant | |
| CN208770996U (en) | A kind of integrated release agent recovery system | |
| CN220779706U (en) | Wet desulfurization pH continuous measurement and flushing device | |
| CN201033751Y (en) | Novel air outlet weir | |
| CN217410383U (en) | Microbubble water generator | |
| CN217025455U (en) | Medicine adding device | |
| CN205973955U (en) | Integration energy -conservation oxygen device that has dropped | |
| CN220414472U (en) | Small water volume gas lifting device and sewage lifting system | |
| CN220455700U (en) | Sewage plant operation supervision system | |
| CN214457138U (en) | System for sewage degree of depth denitrogenation | |
| CN219580202U (en) | Slurry supply system and absorption tower | |
| CN114112792B (en) | Fluid slurry treatment system and instantaneous density detection device and method thereof | |
| CN219689486U (en) | Automatic adjusting device of oxidation pond aeration | |
| CN220597201U (en) | Water-gas mixing circulation aeration system | |
| CN219701190U (en) | Gas stripping mud discharging and backflow system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |