CN201139974Y - Automatic medicine-feed control system for coagulant - Google Patents
Automatic medicine-feed control system for coagulant Download PDFInfo
- Publication number
- CN201139974Y CN201139974Y CNU2007200814984U CN200720081498U CN201139974Y CN 201139974 Y CN201139974 Y CN 201139974Y CN U2007200814984 U CNU2007200814984 U CN U2007200814984U CN 200720081498 U CN200720081498 U CN 200720081498U CN 201139974 Y CN201139974 Y CN 201139974Y
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- coagulant
- control system
- turbidity
- flow rate
- flow
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
An auto-chemical feeder control system of coagulant is composed of a coagulant auto-addition system, a coagulation particle detecting and feedback system and a flow rate and turbidity feed forward control system. The coagulant auto-addition system comprises a PLC control system, a metering pump and a mixer, the coagulation particle detecting and feedback system comprises a single factor flocculate particle detecting system and a turbidity meter, and the flow rate and turbidity feed forward control system is composed of a flow instrument and a turbidity meter. The auto-chemical feeder control system of coagulant can regulate addition of coagulant timely according to coagulation effect of sewage treatment and then guarantee the coagulant dosage reaches the optimum dosage. Simultaneously, by flow rate and turbidity feed forward of the flow rate and turbidity feed forward control system to the sewage and timely regulating coagulant addition according to sewage flow rate and water turbidity, water treatment effect is guaranteed.
Description
Technical field:
The utility model relates to a kind of automatic dosing control system, particularly a kind of automatic dosing control system of coagulant.
Prior art:
Coagulation is one of most important treatment process in the sewage disposal system, also is the principal element that influences cost of sewage disposal.Whether consuming amount of concrete accurately directly has influence on the effect and the processing cost of sewage disposal.Under the condition that does not have the continuous monitoring instrument, generally all be that excessive use flocculating agent is to guarantee the treatment effect of water.But in the processing procedure of sewage, the consumption of flocculating agent has an optimum value.Be lower than or surpass this optimum value and all can not reach the optimization process effect.Because coagulant charging quantity changes with the fluctuation of the water yield, water quality, how accurately to control coagulation dosing, is perplexing people for a long time.For over ten years.The various Automatic Dosing methods of having tried out are explored by China various places water factory, as detect the technology such as mathematical model method, model filter tank, model inclined tube method, floccule body imaging of the every apparent parameter (raw water flow, turbidity, PH, basicity, temperature, coagulant flow, concentration, usefulness etc.) that influences coagulation effect.Many external automatic control systems have also been introduced.But all there are some shortcomings that are difficult to overcome in they, or can not be in time add dose according to the variation adjustment of water quality and quantity, and hysteresis is more serious.
The utility model content:
The purpose of this utility model is to provide a kind of Automatic Dosing control device of realizing that flocculant adds accurately automatically in the water treatment procedure.
The utility model is achieved in that
A kind of automatic dosing control system of coagulant, by the automatic dosing system of coagulant, coagulation detection of particles reponse system and flow and turbidity feedforward control system are formed, it is characterized in that: the automatic dosing system of coagulant is by the PLC control system, measuring pump, and blender is formed, coagulation detection of particles reponse system is by the single-factor particle detection systems that flocculates, transmissometer is formed, and flow and turbidity feedforward control system are by flow instrument, and transmissometer is formed.
By using automatic dosing control system of coagulant described in the utility model, can in time adjust the addition of coagulant according to the coagulation effect of sewage disposal, guarantee that the consumption of coagulant reaches optimum amount.Simultaneously,, in time adjust the addition of coagulant, guarantee the effect of water treatment according to the turbidity of the flow of sewage and water according to the feedforward of the flow that is provided with and turbidity feedforward control system to the flow and the turbidity of sewage.
Description of drawings:
Fig. 1 is a flow chart of the present utility model.
The specific embodiment:
As shown in Figure 1, a kind of automatic dosing control system of coagulant, by the automatic dosing system of coagulant, coagulation detection of particles reponse system and flow and turbidity feedforward control system are formed, and it is characterized in that: the automatic dosing system of coagulant is by the PLC control system, measuring pump, blender is formed, and coagulation detection of particles reponse system is by the single-factor particle detection systems that flocculates, and transmissometer is formed, flow and turbidity feedforward control system are by flow instrument, and transmissometer is formed.
In use, at first set a turbidity desired value, and this setting is sent to the automatic dosing system of coagulant, adjust the coagulant addition by the PLC control system, and send instruction to measuring pump, measuring pump adds a certain amount of coagulant in blender.
The flocculation particle content of the water that the single-factor flocculation particle detection systems detection mixer of coagulation detection of particles reponse system is come out, and measurement result fed back to the automatic dosing system of coagulant, simultaneously, the turbidity of the treated water that the transmissometer mensuration clear water reserviors of coagulation detection of particles reponse system come out, and measurement result fed back to the automatic dosing system of coagulant, coagulant is speculated the feedback of system according to coagulation detection of particles reponse system automatically, in time adjusts the size and the joining day of the amount of coagulant adding.
Flow and turbidity feedforward control system are before sewage disposal, measure the flow and the turbidity of sewage, measurement result is feedovered to the automatic dosing system of coagulant, and the automatic dosing system of coagulant is in time adjusted amount and joining day that coagulant adds according to the feedforward of flow and turbidity feedforward control system.
Native system in use mainly constitutes closed-loop control by flocculation particle detection systems and transmissometer; Constitute the feed-forward signal of medicine system by transmissometer and flowmeter, guaranteed coagulant dosage in time and accurately.
Claims (1)
1, a kind of automatic dosing control system of coagulant, by the automatic dosing system of the coagulant that links together by the PLC control system, coagulation detection of particles reponse system and flow and turbidity feedforward control system are formed, it is characterized in that: the automatic dosing system of coagulant is by the PLC control system, the measuring pump that is connected with the PLC control system, the blender that is connected with measuring pump is formed, the transmissometer that coagulation detection of particles reponse system is handled back clear water reserviors delivery turbidity by single-factor flocculation particle detection systems that detects mixed liquor flocculation particle and detection is formed, flow and turbidity feedforward control system are by the flow instrument that sewage is detected, and transmissometer is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200814984U CN201139974Y (en) | 2007-10-17 | 2007-10-17 | Automatic medicine-feed control system for coagulant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200814984U CN201139974Y (en) | 2007-10-17 | 2007-10-17 | Automatic medicine-feed control system for coagulant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201139974Y true CN201139974Y (en) | 2008-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200814984U Expired - Fee Related CN201139974Y (en) | 2007-10-17 | 2007-10-17 | Automatic medicine-feed control system for coagulant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201139974Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805050A (en) * | 2010-03-17 | 2010-08-18 | 上海大学 | Method and system for controlling coagulant dosing through on-line prediction of turbidity after flocculation water sedimentation |
| CN101937197A (en) * | 2009-06-29 | 2011-01-05 | 株式会社日立制作所 | Agglomerant transfusion control system |
| CN101659462B (en) * | 2009-09-18 | 2011-09-28 | 河海大学 | Automatic dosing control system of coagulant and operation method |
| CN102531131A (en) * | 2012-02-15 | 2012-07-04 | 泰山医学院 | System and method for controlling adding amount of flocculant |
| CN105800755A (en) * | 2016-05-12 | 2016-07-27 | 上海应用技术学院 | Water quality online monitoring system and method of wastewater coagulation treatment unit |
| CN106219618A (en) * | 2016-04-08 | 2016-12-14 | 江苏天雨环保集团有限公司 | Integral intelligent pumping plants based on many water distribution points and water outlet distribution control method thereof |
| CN107540069A (en) * | 2017-10-23 | 2018-01-05 | 河海大学 | A kind of full-automatic coagulant dosage system |
| CN110330085A (en) * | 2019-07-18 | 2019-10-15 | 成都市自来水有限责任公司 | Coagulating sedimentation system and technique based on zeta current potential and SS control dosing returned sludge |
| CN111268780A (en) * | 2020-03-10 | 2020-06-12 | 中冶赛迪重庆信息技术有限公司 | Sewage treatment method |
| CN111320246A (en) * | 2020-03-12 | 2020-06-23 | 青岛道斯康环保科技有限公司 | Coagulant intelligent accurate adding control system based on multivariable control |
| CN112079481A (en) * | 2020-09-04 | 2020-12-15 | 南京理工大学 | Water target way circulating water treatment system |
| CN113695084A (en) * | 2021-08-24 | 2021-11-26 | 太原钢铁(集团)有限公司 | Method for improving flotation separation efficiency |
-
2007
- 2007-10-17 CN CNU2007200814984U patent/CN201139974Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937197A (en) * | 2009-06-29 | 2011-01-05 | 株式会社日立制作所 | Agglomerant transfusion control system |
| CN101937197B (en) * | 2009-06-29 | 2012-09-26 | 株式会社日立制作所 | Agglomerant transfusion control system |
| CN101659462B (en) * | 2009-09-18 | 2011-09-28 | 河海大学 | Automatic dosing control system of coagulant and operation method |
| CN101805050A (en) * | 2010-03-17 | 2010-08-18 | 上海大学 | Method and system for controlling coagulant dosing through on-line prediction of turbidity after flocculation water sedimentation |
| CN102531131A (en) * | 2012-02-15 | 2012-07-04 | 泰山医学院 | System and method for controlling adding amount of flocculant |
| CN106219618A (en) * | 2016-04-08 | 2016-12-14 | 江苏天雨环保集团有限公司 | Integral intelligent pumping plants based on many water distribution points and water outlet distribution control method thereof |
| CN105800755A (en) * | 2016-05-12 | 2016-07-27 | 上海应用技术学院 | Water quality online monitoring system and method of wastewater coagulation treatment unit |
| CN107540069A (en) * | 2017-10-23 | 2018-01-05 | 河海大学 | A kind of full-automatic coagulant dosage system |
| CN110330085A (en) * | 2019-07-18 | 2019-10-15 | 成都市自来水有限责任公司 | Coagulating sedimentation system and technique based on zeta current potential and SS control dosing returned sludge |
| CN111268780A (en) * | 2020-03-10 | 2020-06-12 | 中冶赛迪重庆信息技术有限公司 | Sewage treatment method |
| CN111320246A (en) * | 2020-03-12 | 2020-06-23 | 青岛道斯康环保科技有限公司 | Coagulant intelligent accurate adding control system based on multivariable control |
| CN112079481A (en) * | 2020-09-04 | 2020-12-15 | 南京理工大学 | Water target way circulating water treatment system |
| CN113695084A (en) * | 2021-08-24 | 2021-11-26 | 太原钢铁(集团)有限公司 | Method for improving flotation separation efficiency |
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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: Automatic dosing control system of coagulant and operation method Effective date of registration: 20110211 Granted publication date: 20081029 Pledgee: Chengdu Productivity Promotion Center Pledgor: Chengdu Qili Water Treatment Science & Technology Co., Ltd. Registration number: 2011990000044 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20151017 |
|
| EXPY | Termination of patent right or utility model |