CN207192939U - A kind of oxidation ditch constant oxygen system - Google Patents
A kind of oxidation ditch constant oxygen system Download PDFInfo
- Publication number
- CN207192939U CN207192939U CN201721214509.1U CN201721214509U CN207192939U CN 207192939 U CN207192939 U CN 207192939U CN 201721214509 U CN201721214509 U CN 201721214509U CN 207192939 U CN207192939 U CN 207192939U
- Authority
- CN
- China
- Prior art keywords
- signal input
- control signal
- plc
- oxidation ditch
- frequency converter
- 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
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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)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model, which provides a kind of oxidation ditch constant oxygen system, includes blower motor dissolved oxygen probe, signal acquisition module, D/A modular converters, PLC, control signal input module and frequency converter；The aerobic zone for the oxidation ditch that the test side of the dissolved oxygen probe is located at, the data output end of dissolved oxygen probe and the signal input part of signal acquisition module connect, one signal output part of the signal acquisition module is connected with the input end of analog signal of D/A modular converters, the digital signal output end of the D/A modular converters and the first signal input part of PLC connect, the control signal output of PLC and the control signal input of frequency converter are connected, and the output end of the frequency converter is connected with blower motor；The control signal output of the control signal input module and the secondary signal input of PLC connect.The system architecture is simple, easy to use, and the change to existing equipment is small, so as to which improving cost is low.
Description
Technical field
It the utility model is related to sewage disposal device, and in particular to a kind of oxidation ditch constant oxygen system.
Background technology
The effect of oxidation ditch is that sewage is handled by activated sludge, and the structure of existing oxidizing ditch oxygen supply is mainly wrapped
The aeration tube for being arranged on oxidation ditch bottom is included, the blower fan being connected with aeration tube and the blower motor for driving blower fan to rotate.This confession
Oxygen-supplying amount in oxide structure is invariable, but as season is different, wastewater influent amount is different, and the quality of sewage is different,
Dissolved oxygen amount fluctuation so in sewage can be very big, is so unfavorable for the growth of sludge in oxidation ditch, wastewater treatment efficiency is paid no attention to
Think.
Utility model content
In view of the above-mentioned problems existing in the prior art, the purpose of this utility model is to provide a kind of oxidation ditch constant oxygen supply system
System, can ensure the constant of oxidation ditch dirt dissolved oxygen in water as far as possible using system.
To achieve the above object, the utility model adopts the following technical scheme that：A kind of oxidation ditch constant oxygen system, including
Blower motor, including dissolved oxygen probe, signal acquisition module, D/A modular converters, PLC, control signal input module and change
Frequency device；
The aerobic zone for the oxidation ditch that the test side of the dissolved oxygen probe is located at, data output end and the signal of dissolved oxygen probe are adopted
Collect the signal input part connection of module, a signal output part of the signal acquisition module is believed with the simulation of D/A modular converters
The connection of number input, the digital signal output end of the D/A modular converters and the first signal input part of PLC connect,
The control signal output of PLC and the control signal input of frequency converter connect, the output end and wind of the frequency converter
Machine motor connection；
The control signal output of the control signal input module and the secondary signal input of PLC connect；
The feedback signal output of the frequency converter is connected with PLC feedback signal input terminal, PLC feedback
Signal output part is connected with the feedback signal input terminal of control signal input module.
Preferably, the control signal input module is computer.
Preferably, the control signal input module is liquid crystal touch screen.
Relative to prior art, the utility model has the following advantages that：
Oxidation ditch constant oxygen system provided by the utility model, simple in construction, easy to use, the change to existing equipment
It is small, so as to which improving cost is low.
Brief description of the drawings
Fig. 1 is the principle schematic of oxidation ditch constant oxygen system.
In figure, blower motor 9, dissolved oxygen probe 10, D/A modular converters 11, PLC 13, frequency converter 14, signal acquisition
Module 15, control signal input module 16.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1, a kind of oxidation ditch constant oxygen system, including blower motor 9, dissolved oxygen probe 10, signal acquisition module
15th, D/A modular converters 11, PLC 13, control signal input module 16 and frequency converter 14；
The aerobic zone for the oxidation ditch that the test side of the dissolved oxygen probe 10 is located at, for detecting the dissolved oxygen of sewage in aerobic zone
Amount, the data output end of dissolved oxygen probe 10 are connected with the signal input part of signal acquisition module 15, the signal acquisition module 15
A signal output part be connected with the input end of analog signal of D/A modular converters 11；
The signal that dissolved oxygen probe 10 detects can be divided into multiple-channel output by the setting of signal acquisition module 15；
The digital signal output end of the D/A modular converters 11 is connected with the first signal input part of PLC 13,
The control signal output of PLC 13 is connected with the control signal input of frequency converter 14；
The D/A modular converters 11 and PLC 13 are prior art；
The output end of the frequency converter 14 is connected with blower motor 9；By change the frequency of the inputing power of blower motor 9 come
Change the rotating speed of blower motor 9；
The control signal output of the control signal input module 16 connects with the secondary signal input of PLC 13
Connect；
The feedback signal output of the frequency converter 14 is connected with the feedback signal input terminal of PLC 13, PLC
13 feedback signal outputs are connected with the feedback signal input terminal of control signal input module 16.
Preferably, the control signal input module 16 is computer or liquid crystal touch screen, staff can pass through
Control signal input module 16 inputs control parameter to PLC.
Use the process of this oxidation ditch constant oxygen system：
The dissolved oxygen amount of the aerobic zone for the oxidation ditch that dissolved oxygen probe 10 detects, the dissolved oxygen amount analog signal of detection turn by D/A
Mold changing block 11 is converted into data signal, enters back into PLC 13 and handles, after changing into corresponding control signal, then inputs
In frequency converter 14, then change the rotating speed of blower motor by frequency converter 14, so as to change the rotating speed of blower fan, realize and enter exposure
The control of air capacity in tracheae, finally realize the control to aerobic zone sewage dissolved oxygen amount.
Because the sewage quantity that Various Seasonal enters in oxidation ditch is different, water quality is also different, it is therefore desirable to adjusts blower fan in good time
Rotating speed, therefore staff can input control parameter by control signal input module 16 to PLC 13, so as to as far as possible
Ensure oxidation ditch in sewage dissolved oxygen amount in a constant scope.
By DO change automatic frequency adjustment blower fan, the stable precisely controlling system DO of oxygen-supplying amount is automatically adjusted, ensures technique system
The stabilization for running environment of uniting, while energy-saving purpose can be reached to a certain extent.
It should be noted that the purpose of this utility model is to provide a kind of oxidation ditch constant oxygen system, it is specifically used
When, the program in PLC is not in the scope of protection of the utility model.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, without departing from the objective and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (3)
1. a kind of oxidation ditch constant oxygen system, including blower motor（9）, it is characterised in that：Including dissolved oxygen probe（10）, signal
Acquisition module（15）, D/A modular converters（11）, PLC（13）, control signal input module（16）And frequency converter（14）；
The dissolved oxygen probe（10）The aerobic zone of oxidation ditch that is located at of test side, dissolved oxygen probe（10）Data output end and letter
Number acquisition module（15）Signal input part connection, the signal acquisition module（15）A signal output part and D/A change
Module（11）Input end of analog signal connection, the D/A modular converters（11）Digital signal output end and PLC
（13）The first signal input part connection, PLC（13）Control signal output and frequency converter（14）Control signal
Input connects, the frequency converter（14）Output end and blower motor（9）Connection；
The control signal input module（16）Control signal output and PLC（13）Secondary signal input connect
Connect；
The frequency converter（14）Feedback signal output and PLC（13）Feedback signal input terminal connects, PLC
（13）Feedback signal output and control signal input module（16）Feedback signal input terminal connection.
2. oxidation ditch constant oxygen system as claimed in claim 1, it is characterised in that the control signal input module（16）
For computer.
3. oxidation ditch constant oxygen system as claimed in claim 1, it is characterised in that the control signal input module（16）
For liquid crystal touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721214509.1U CN207192939U (en) | 2017-09-21 | 2017-09-21 | A kind of oxidation ditch constant oxygen system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721214509.1U CN207192939U (en) | 2017-09-21 | 2017-09-21 | A kind of oxidation ditch constant oxygen system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207192939U true CN207192939U (en) | 2018-04-06 |
Family
ID=61790017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721214509.1U Expired - Fee Related CN207192939U (en) | 2017-09-21 | 2017-09-21 | A kind of oxidation ditch constant oxygen system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207192939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754049A (en) * | 2021-09-09 | 2021-12-07 | 广汽丰田汽车有限公司 | Biochemical pool aeration device, sewage treatment method, system and storage medium |
-
2017
- 2017-09-21 CN CN201721214509.1U patent/CN207192939U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754049A (en) * | 2021-09-09 | 2021-12-07 | 广汽丰田汽车有限公司 | Biochemical pool aeration device, sewage treatment method, system and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 Termination date: 20190921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |