CN202625944U - Energy-saving variable-frequency regulating accurate aerating system - Google Patents
Energy-saving variable-frequency regulating accurate aerating system Download PDFInfo
- Publication number
- CN202625944U CN202625944U CN2012202606008U CN201220260600U CN202625944U CN 202625944 U CN202625944 U CN 202625944U CN 2012202606008 U CN2012202606008 U CN 2012202606008U CN 201220260600 U CN201220260600 U CN 201220260600U CN 202625944 U CN202625944 U CN 202625944U
- Authority
- CN
- China
- Prior art keywords
- aerator
- energy
- gas blower
- dissolved oxygen
- aerating system
- 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.)
- Expired - Fee Related
Links
Images
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
- Activated Sludge Processes (AREA)
Abstract
The utility model discloses an energy-saving variable-frequency regulating accurate aerating system. The energy-saving variable-frequency regulating accurate aerating system comprises a transducer, an air blower, a plurality of aerating tanks, a plurality of aerators, a plurality of air inlet pipe electric adjusting valves, and further comprises a DO (Dissolved Oxygen) main adjusting device, a caloric flow rate sensor, a dissolved oxygen probe and a secondary flow adjusting device, wherein the DO main adjusting device is connected in series with the secondary flow adjusting device; and the main adjusting device outputs the main adjusting parameters to the secondary flow adjusting device. The energy-saving variable-frequency regulating accurate aerating system disclosed by the utility model can be kept in a good energy-saving state, and is obvious in effect of energy saving.
Description
Technical field
The utility model relates to technical field of sewage treatment equipment, particularly relates to the accurate aerating system of a kind of energy-conservation variable frequency adjustment.
Background technology
In the municipal wastewater treatment process of China; Biological processing unit is the link that generally adopts in each sewage treatment process; The basic task of biological processing unit is to remove organism, suspended substance and nutritive substances such as nitrogen, phosphorus; Wherein remove organism and adopt aeration tank bottom blast aeration mode more, therefore optimizing municipal wastewater factory blast aeration system is counted as most important energy-conservation link in the whole water treatment procedure.
In existing aerating system; Have plenty of to feed back and regulate gas blower valve and aeration tank inlet valve according to pressure signal; To reach set aeration rate, promptly its control method is a benchmark with the pressure signal of setting, and at first the aeration tank housing carries out Collection and analysis with the dissolved oxygen signal that dissolved oxygen probe transports; Carry out PID (PID) computing, export corresponding conditioning signal and regulate the aeration tank inlet valve; Pressure signal after being installed in pressure unit on the aeration tank and will changing sends the gas blower system to; The gas blower system is carried out the PID computing according to the variation and the reference set value of pressure signal; The conditioning signal of output drum blower fan outlet valve is to guarantee that the total system pressure recovery is to regulating preceding setting equilibrium state.In this control method, be generally the least favorable force value of system as the pressure signal of reference signal, so make whole aerating system be in operation under the Max pressure loss state all the time, be non-energy-conservation control method.
In other existing aerating systems, also have plenty of according to the required aeration rate in each aeration tank, through regulating the gas blower valve integratedly and the aeration tank inlet valve is realized aeration.Yet though its adjusting is according to flow-maximum opening valve principle, promptly the maximum arm valve of the pressure-losses is made as full gate in all arms; Be the basis to lose maximum arm flow, set other valve opening, still; When the aeration rate demand changes, need to continue the adjustment valve opening, reach set tolerance; At this moment no matter adjusting the arm valve still is the blower export valve; The capital causes whole pressure loss in piping to increase, thereby causes blower power to increase, and is not preferable energy-conservation adjusting.
The utility model content
The purpose of the utility model is to provide a kind of energy-conservation variable frequency adjustment accurate aerating system, and it makes system remain better power save mode, and energy-saving effect is obvious.
Be a kind of energy-conservation accurate aerating system of variable frequency adjustment of realizing that the utility model purpose provides; Comprise frequency transformer, gas blower; A plurality of aeration tanks and aerator, and a plurality of inlet pipe motor-driven control valve also comprise DO master governor, caloic formula flow sensor; Dissolved oxygen probe, the flow secondary controller;
Wherein, said DO master governor and flow secondary controller serial connection, said DO master governor output main regulation parameter is to the flow secondary controller;
Said DO master governor is also connected to caloic formula flow sensor, dissolved oxygen probe and a plurality of inlet pipe motor-driven control valve; Said DO master governor receives the data of caloic formula flow sensor, dissolved oxygen probe, and to a plurality of inlet pipe motor-driven control valve output steering orders;
Said flow secondary controller serial connection and control of conversion device; Said frequency transformer also is connected in series and controls gas blower; Said gas blower is connected to said a plurality of inlet pipe motor-driven control valve through pipeline; Said caloic formula flow sensor is connected on the pipeline between said gas blower and a plurality of inlet pipe motor-driven control valve, measures said gas blower flow;
Said fusion oxygen probe is surveyed the DO value of said aeration tank, and the DO value is transferred to master governor.
More excellent ground, said DO master governor comprises the DCS dissolved oxygen controller; Be connected to a plurality of motorized adjustment threshold switchs that are connected in parallel of the said inlet pipe motor-driven control valve of a plurality of controls of DCS dissolved oxygen controller MPI end; Be connected to the gas blower MCP of DCS dissolved oxygen controller NODE end, and a plurality of mutual placed in-line a plurality of gas blower LCP that are connected to the NODE end of gas blower MCP.
More excellent ground, said flow secondary controller comprises the 2nd PLC program logic controller.
More excellent ground, the aerator in the said aeration tank are micro-hole aerator or middle air pocket aerator.
More excellent ground, said micro-hole aerator in can opening, micro-hole aerator, perhaps flat aerator, perhaps bell-jar micro-hole aerator, the perhaps bar-shaped micro-hole aerator of Vilaterm.
More excellent ground, said air pocket aerator be two umbellate form aerators, the air diffusion aerator of boring a hole, micro-hole aerator in the reticular membrane, fixing spiral aerator, dynamic aeration device, a kind of in basin shape aerator or the perforated pipe aerating regulation device.
The beneficial effect of the utility model is: the accurate aerating system of energy-conservation variable frequency adjustment of the utility model; It is changed to signal criterion with dissolved oxygen, air flow quantity; Regulating rotating speed with frequency transformer is regulating measure, makes system remain better power save mode, and energy-saving effect is obvious.
Description of drawings
Fig. 1 is the accurate aerating system structural representation of the energy-conservation variable frequency adjustment of the utility model;
Fig. 2 is a DO master governor electrical block diagram among Fig. 1;
Fig. 3 is a flow secondary controller regulating circuit structural representation among Fig. 1.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the accurate aerating system of energy-conservation variable frequency adjustment of the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
But as a kind of embodiment, the accurate aerating system of the energy-conservation variable frequency adjustment of the utility model adopts the tandem flow control that is changed to signal criterion with dissolved oxygen, air flow quantity, is specially adapted to the aeration tank dissolved oxygen system of big-and-middle-sized sewage work.
The accurate aerating system of energy-conservation variable frequency adjustment of the utility model; Comprise dissolved oxygen probe 8, aeration tank housing (DO master governor) 1, caloic formula flow sensor 7, frequency transformer 3; Gas blower housing (flow secondary controller) 2; Gas blower 4, and a plurality of aeration tank and aerator 5, a plurality of inlet pipe motor-driven control valves 6.
As shown in Figure 1, said DO master governor 1 and flow secondary controller 2 serial connections, said master governor 1 output main regulation parameter is to flow secondary controller 2;
Said DO master governor 1 is also connected to caloic formula flow sensor 7, dissolved oxygen probe 8 and a plurality of inlet pipe motor-driven control valve 6; Said DO master governor 1 receives the data of caloic formula flow sensor 7, dissolved oxygen probe 8, and to a plurality of inlet pipe motor-driven control valve 6 output steering orders.
Said flow secondary controller 2 serial connection and control of conversion devices 3; Said frequency transformer 3 also is connected in series and controls gas blower 4; Said gas blower 4 is connected to said a plurality of inlet pipe motor-driven control valve 6 through pipeline; Said caloic formula flow sensor 7 is connected on the pipeline between said gas blower 4 and a plurality of inlet pipe motor-driven control valve 6, measures said gas blower 4 flows.
Said fusion oxygen probe 8 is surveyed DO (dissolved oxygen, the dissolved oxygen) value of said aeration tank 5, and the DO value is transferred to master governor 1.
As shown in Figure 1; The accurate aerating system of energy-conservation variable frequency adjustment of the utility model; Each aeration tank and aerator connect independently inlet pipe motor-driven control valve, and its flow control is required through the total flux to total system dissolved oxygen pipeline by aeration tank housing (DO master governor) and the actual oxygen requirement of each sewage lagoon is monitored.
But as a kind of embodiment, said DO master governor (aeration tank housing) carries out weighted average calculation to be kept under the prerequisite of system's total flux demand, carries out proportional distribution by each regional demand again.Inlet pipe motor regulated valve aperture to each regional flow in each aeration tank of adjustment increases simultaneously or during the state that reduces simultaneously, flow is minimum stability number, and provide this moment again departs from control.
But as a kind of embodiment; Its flow control realizes through float control method and/or PID method; Through DO value and optimum value in the dissolved oxygen probe monitoring aeration tank relatively; Regulate requirement by the output of DO master governor and give flow secondary controller (gas blower housing), carry out the rotating speed adjustment of gas blower by flow secondary controller output command to frequency transformer, thereby carry out regulating.
Preferably; But as a kind of embodiment; The detection of dissolved oxygen is directly to be monitored by the DO master governor in the aeration tank; As shown in Figure 2, aeration tank housing (DO master governor) 1 comprises a PLC program logic controller (DCS dissolved oxygen controller) 11, is connected to a plurality of motorized adjustment threshold switchs 12 that are connected in parallel of the said inlet pipe motor-driven control valve of a plurality of controls of DCS dissolved oxygen controller MPI end; Be connected to the gas blower MCP13 of DCS dissolved oxygen controller NODE end, and a plurality of mutual placed in-line a plurality of gas blower LCP14 that are connected to the NODE end of gas blower MCP13.
Each aeration tank has different dissolved oxygen demands; Carry out weighted average calculation by the DCS dissolved oxygen controller (PLC logic controller) of DO master governor and keep system's total flux demand; Put again before this and to carry out proportional distribution by each regional demand; Promptly select different motorized adjustment threshold switchs to carry out switching operation, adjust each aeration tank inlet pipe air intake valve aperture.If the aeration required value needs the flow secondary controller to carry out through the tolerance that adjusting is transported in the sewage lagoon, then the DO master governor will provide operating value output order to the flow secondary controller in following two kinds of working method, and first method is the control intermediate value of floating.Second method is for to carry out based on the parameter of PID (PID) control method.Its tolerance according to total system requires and gas blower operation quantity, changes based on the dissolved oxygen system.
Preferably, but as a kind of embodiment, as shown in Figure 3, said flow secondary controller 2 comprises the 2nd PLC program logic controller 21.The 2nd PLC logic controller of blower variable frequency housing (flow secondary controller) is that every gas blower provides and starts/stop control; Lean on from the signal enabling of DO master governor and the machine that turns off the blast; Or output frequency transformer rotary speed instruction, thereby guarantee desired air flow quantity.Further, under DO master governor LOS Loss Of Signal situation, the flow secondary controller will be by the DO master governor secure data control gas blower of receiving at last.
Gas blower relies on the data that set at the flow secondary controller to move.The numerical value of target flow and rotating speed will be set on the blower variable frequency housing; Be within the blower fan safety operation scope, flow secondary controller adjustment frequency transformer rotating speed (being blower speed) satisfy atmospheric condition and system pressure variation with keep ampere/flux values target value ± 2% within (dependence variable frequency adjustment).When rotating speed dropped to minimum stability number, the minimax reference mark through the setting of flow secondary controller prevented that the gas blower operation from departing from acceptable parameter area.
As shown in Figure 1, DO master governor and the work of flow secondary controller serial connection, the output of DO master governor are as the set(ting)value of flow secondary controller, by flow secondary controller control of conversion device rotating speed.
Here, dissolved oxygen is the major control index as the homophony parameter, and the aeration flow is secondary adjusting parameter, and it is in order to stablize the auxiliary parameter that principal parameter is introduced.
The DO master governor carries out work according to the homophony parameter (dissolved oxygen content) and the deviation of technology preset value; Its output is as the set(ting)value of flow secondary controller; The DO master governor plays a leading role in this system; The flow secondary controller is according to this second parameter of aeration flow and carry out work from the set(ting)value deviation of DO master governor, and the flow secondary controller is exported direct control of conversion device.
Two setters are when in system interference taking place, and according to the calculation formula of said oxygen requirement and drag losses, carry out three kinds and regulate the situation analysis adjusting:
1) owing to the interference of aerator reason or pipeline local losses or other reasons; Blower export pressure and flow are changed, aeration rate is changed, after system detects this variation; The instruction of flow secondary controller output frequency transformer speed adjustment is to keep the aeration flow unchanged.If interference volume is less, be overcome if after the inflow-rate of water turbine secondary controller is regulated, disturb, then the DO master governor does not participate in regulating; If interference volume is bigger, then when the flow secondary controller is regulated, further regulate by the DO master governor, thoroughly eliminate disturbing influence and make principal parameter return to set(ting)value.
2) if airing system is stable; And the water yield, water quality, water temperature or the outside air temperature that get into the aeration tank change; Destroyed original balance, principal parameter is fluctuateed, at this moment dissolved oxygen probe detects this variation afterreaction to DO master governor input terminus; The regulating command of DO master governor output flow is to flow secondary controller input terminus, and two setter series connection are regulated.
3) if interference raises principal parameter (dissolved oxygen concentration) and second parameter (gas blower flow) simultaneously or reduces simultaneously, this moment, major and minor setter was consistent to the speed-regulating instruction of frequency transformer; If disturb major and minor parameter to inverse variation; System guarantees that at first principal parameter is stable; Be that setter requires to carry out work according to principal parameter, second parameter need not keep definite value, and the pair that the flow secondary controller after principal parameter is regulated carries out frequency conversion instruction output again according to adjusted second parameter value is regulated.
4) if the pressure equilibrium of pipeline is destroyed; Then original whole piping system needs the DO master governor to readjust; The adjustment foundation is according to maximum opening valve principle; Guarantee that wherein the valve of the maximum pipeline of the pressure-losses is 100% aperture, adjust other valve to new balance, make system remain the better power save mode of maximum opening valve.
Preferably; The said energy-conservation accurate aerating system of variable frequency adjustment is the accurate aerating system of energy-conservation variable frequency adjustment that carries out sewage treatment process; Said sewage treatment process is CASS (Cycl ic Act iva ted Sludge Sy s tem, loop cycle activated sludge process) technology or SBR (Sequencing Batch Reactor, sequencing batch active sludge or the intermittent activated sludge process) technology of liquid level variable aeration; It is other accurate aeration method relatively, and energy-saving effect will be more obvious.
The accurate aerating system of energy-conservation variable frequency adjustment of the utility model is changed to signal criterion with dissolved oxygen, air flow quantity, and regulating rotating speed with frequency transformer is regulating measure.For aerating systems such as liquid level variable CASS or SBR, and the film purging system energy-saving effect of transformation power is more obvious.
Under the air quantity of gas blower and tubing system both stable condition; If all valve LTP reach minimum in the pipeline; The aeration tank can followed the tracks of and provide to gas blower because the DO value changes and liquid level changes needed flow and pressure immediately through regulating rotating speed, and aerating system at this moment becomes the accurate aerating system of most economical energy-conservation frequency conversion; If still switch through the operation of regulating between the blower speed realization equipment, it is minimum like this system pressure to be remained, and reaches energy-conservation purpose.
Preferably, in the utility model, but as a kind of embodiment; Aerator in the said aeration tank can be micro-hole aerator or middle air pocket aerator; Wherein, big-and-middle-sized Sewage Plant can adopt micro-hole aerator, air pocket aerator during contact oxidation method can adopt.
According to oxygenation capacity curve under the aerator standard state and bottom velocity curve; Can confirm standard state oxygenation capacity, coefficient of oxygen utilization and the dynamicefficiency of aerator under different service areas, different air quantity, the different aeration depth of water, confirm aeration tank sewage oxygen requirement through calculating.
But as a kind of embodiment, said micro-hole aerator includes but not limited to: in can opening, micro-hole aerator, and perhaps flat aerator, perhaps bell-jar micro-hole aerator, the perhaps bar-shaped micro-hole aerator of Vilaterm; Preferably, in the WWT of discontinuous aeration, during use can be opened, micro-hole aerator.
But as a kind of embodiment, said air pocket aerator includes but not limited to: two umbellate form aerators, perforation air diffusion aerator, micro-hole aerator in the reticular membrane, fixing spiral aerator, dynamic aeration device, a kind of in basin shape aerator or the perforated pipe aerating regulation device.
In order to make system's control stabilization and energy-conservation, need confirm the aeration rate that each aeration tank is required according to oxygen requirement because accuracy value is most important to dissolved oxygen control, thus total tolerance set(ting)value precision of gas blower must be arranged on ± below 2%; Pass through the accumulation of the pressure-losses of each link of gas blower simultaneously and calculate, can confirm the needed pressure of total system, thereby confirm the operating power of gas blower.
After confirming gas blower air feed total amount; For confirming the operating power of gas blower; Also need confirm the required pressure of total system; The required pressure of total system can calculate from the pressure-losses of each link, and the pressure-losses of whole aerating system comprises airduct linear loss, the airduct local losses of working medium, the pressure-losses of each valve, the pressure-losses (comprising hydrostatic and the required least resistance of aerator aeration that the air point of release is above) at aeration head place.
In the system of the utility model; The variation of aeration tank each valve opening of inlet all can cause the variation of other valve flow and the pressure-losses, concerning any valve; If obtain the flow that certain is confirmed; So when big aperture because the pressure-losses is minimum, need not gas blower bigger pressure output be provided, mean that gas blower works under lower power; So for the aerating system of a plurality of arms and valve; For flow and the lower-wattage of realizing that certain is confirmed; Need keep the pressure-losses that each arm aerator is exported to blower outlet remains unchanged and keeps aperture maximum rating under the equilibrium pressure; Be about to the pipeline air intake valve maximum apart from the pressure-losses and open to 100%, other pipe valve is adjusted according to this and made each line loss roughly approaching, and is equal to guarantee air intake.At this moment; If system balancing is destroyed again; Change like amount of inlet water, water quality, water temperature, system pressure, aeration rate, or keto consumpting speed and oxygenation velocity balance destroyed, dissolved oxygen concentration is changed; At this moment regulate blower speed through frequency conversion system and PID setter again; With regulate the gas blower aeration rate (keep electric current or flow target value ± 2% within) make aeration tank dissolved oxygen concentration reach new balance and stability state, this moment, whole aerating system was issued to specific gas blower flow at the minimum state of LTP all the time, made system remain better power save mode.
Should be noted that at last that obviously those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Like this, if these of the utility model are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification.
Claims (6)
1. the accurate aerating system of energy-conservation variable frequency adjustment comprises frequency transformer, gas blower, a plurality of aeration tanks and aerator; And a plurality of inlet pipe motor-driven control valves, it is characterized in that, also comprise DO master governor, caloic formula flow sensor; Dissolved oxygen probe, the flow secondary controller;
Wherein, said DO master governor and flow secondary controller serial connection, said DO master governor output main regulation parameter is to the flow secondary controller;
Said DO master governor is also connected to caloic formula flow sensor, dissolved oxygen probe and a plurality of inlet pipe motor-driven control valve; Said DO master governor receives the data of caloic formula flow sensor, dissolved oxygen probe, and to a plurality of inlet pipe motor-driven control valve output steering orders;
Said flow secondary controller serial connection and control of conversion device; Said frequency transformer also is connected in series and controls gas blower; Said gas blower is connected to said a plurality of inlet pipe motor-driven control valve through pipeline; Said caloic formula flow sensor is connected on the pipeline between said gas blower and a plurality of inlet pipe motor-driven control valve, measures said gas blower flow;
Said fusion oxygen probe is surveyed the DO value of said aeration tank, and the DO value is transferred to master governor.
2. the accurate aerating system of energy-conservation variable frequency adjustment according to claim 1 is characterized in that said DO master governor comprises the DCS dissolved oxygen controller; Be connected to a plurality of motorized adjustment threshold switchs that are connected in parallel of the said inlet pipe motor-driven control valve of a plurality of controls of DCS dissolved oxygen controller MPI end; Be connected to the gas blower MCP of DCS dissolved oxygen controller NODE end, and a plurality of mutual placed in-line a plurality of gas blower LCP that are connected to the NODE end of gas blower MCP.
3. the accurate aerating system of energy-conservation variable frequency adjustment according to claim 1 is characterized in that said flow secondary controller comprises the 2nd PLC program logic controller.
4. the accurate aerating system of energy-conservation variable frequency adjustment according to claim 1 is characterized in that, the aerator in the said aeration tank is micro-hole aerator or middle air pocket aerator.
5. the accurate aerating system of energy-conservation variable frequency adjustment according to claim 4 is characterized in that, said micro-hole aerator in can opening, micro-hole aerator, perhaps flat aerator, perhaps bell-jar micro-hole aerator, the perhaps bar-shaped micro-hole aerator of Vilaterm.
6. the accurate aerating system of energy-conservation variable frequency adjustment according to claim 4; It is characterized in that said air pocket aerator is two umbellate form aerators, the perforation air diffusion aerator; Micro-hole aerator in the reticular membrane; Fixing spiral aerator, dynamic aeration device, a kind of in basin shape aerator or the perforated pipe aerating regulation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202606008U CN202625944U (en) | 2012-06-05 | 2012-06-05 | Energy-saving variable-frequency regulating accurate aerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202606008U CN202625944U (en) | 2012-06-05 | 2012-06-05 | Energy-saving variable-frequency regulating accurate aerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202625944U true CN202625944U (en) | 2012-12-26 |
Family
ID=47379164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202606008U Expired - Fee Related CN202625944U (en) | 2012-06-05 | 2012-06-05 | Energy-saving variable-frequency regulating accurate aerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202625944U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105712577A (en) * | 2016-02-04 | 2016-06-29 | 广州市朔康医疗科技有限公司 | Reverse control energy-saving type medical wastewater treatment method and device |
| CN106630153A (en) * | 2017-03-21 | 2017-05-10 | 成都冠禹科技有限公司 | Novel compound multifunctional sewage treatment system capable of realizing real-time monitoring |
| CN106746154A (en) * | 2015-11-19 | 2017-05-31 | 张家港市宏盛贸易有限公司 | It is applied to the fan assembly of textile waste processing system |
| CN114249424A (en) * | 2021-12-24 | 2022-03-29 | 中建生态环境集团有限公司 | Multi-stage AO pool aeration rate control method and system |
-
2012
- 2012-06-05 CN CN2012202606008U patent/CN202625944U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746154A (en) * | 2015-11-19 | 2017-05-31 | 张家港市宏盛贸易有限公司 | It is applied to the fan assembly of textile waste processing system |
| CN105712577A (en) * | 2016-02-04 | 2016-06-29 | 广州市朔康医疗科技有限公司 | Reverse control energy-saving type medical wastewater treatment method and device |
| CN106630153A (en) * | 2017-03-21 | 2017-05-10 | 成都冠禹科技有限公司 | Novel compound multifunctional sewage treatment system capable of realizing real-time monitoring |
| CN114249424A (en) * | 2021-12-24 | 2022-03-29 | 中建生态环境集团有限公司 | Multi-stage AO pool aeration rate control method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202625944U (en) | Energy-saving variable-frequency regulating accurate aerating system | |
| CN202758178U (en) | Intelligent dynamic aeration control system | |
| CN106277299B (en) | Aeration control system and method based on oxygen consumption rate tester | |
| CN109592804B (en) | Sewage treatment near-optimal precise aeration method | |
| CN102863074A (en) | Intelligent control method of blast aeration system of municipal sewage plant | |
| CN106277383B (en) | Aeration control system and method based on oxygen consumption rate tester | |
| CN201305463Y (en) | Waste acid or waste alkali recovery device for automatic diffusion dialysis industry | |
| CN204874050U (en) | Inverter type sewage treatment aeration equipment | |
| CN103641236A (en) | Intelligent aeration system with dissolved oxygen meter | |
| CN105757851A (en) | Chilled water flow-variable energy-saving control method and system | |
| CN202648917U (en) | Device for testing separation effect of three-phase separator in anaerobic reactor | |
| CN207608388U (en) | A kind of accurate aeration system | |
| CN210795894U (en) | Full-automatic aeration energy-saving control system | |
| CN101274197B (en) | Automatic draining and supplying device for controlling pH of leaching tower, , and working method thereof | |
| CN103486732B (en) | Outdoor shower system fuel-oil water heater cluster water temperature control system and method | |
| CN202595816U (en) | Intelligent negative-pressure-free frequency conversion constant-voltage water supply system | |
| CN203269649U (en) | Novel automatic biological reaction tank control system for sewage treatment plant | |
| CN102491507A (en) | Method and device of automatic control for sequencing batch type treatment process at non-DO state | |
| CN208413970U (en) | Accurate aeration control system | |
| CN107416991A (en) | A kind of intelligent accurate aeration control system | |
| CN107726581A (en) | A kind of subscriber access system for regional cooling and heating system | |
| CN111960613A (en) | Accurate dephosphorization medicine system of sewage treatment plant | |
| CN207438834U (en) | A kind of subscriber access system for regional cooling and heating system | |
| CN201071325Y (en) | Oxygen supply system for aeration tank | |
| CN207845269U (en) | constant DO control system based on real-time OUR |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Energy-saving variable-frequency regulating accurate aerating system Effective date of registration: 20130815 Granted publication date: 20121226 Pledgee: China Financial Leasing Co. Pledgor: Psi New-energy Technology Development (Beijing) Co., Ltd. Registration number: 2013990000581 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20131230 Granted publication date: 20121226 Pledgee: China Financial Leasing Co. Pledgor: Psi New-energy Technology Development (Beijing) Co., Ltd. Registration number: 2013990000581 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20131230 Granted publication date: 20121226 Pledgee: China Financial Leasing Co. Pledgor: Psi New-energy Technology Development (Beijing) Co., Ltd. Registration number: 2013990000581 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 101500 A, No. 26, Heng Tong Road, Miyun Economic Development Zone, Beijing Patentee after: Rock Environment Technology (Beijing) Co., Ltd. Address before: 101500 room 410, office building, 8 Development Zone, flourishing South Road, Miyun Economic Development Zone, Beijing, -226 Patentee before: Psi New-energy Technology Development (Beijing) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20210605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |