CN201495122U - Coagulator automatic feeding control system - Google Patents
Coagulator automatic feeding control system Download PDFInfo
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- CN201495122U CN201495122U CN2009202321641U CN200920232164U CN201495122U CN 201495122 U CN201495122 U CN 201495122U CN 2009202321641 U CN2009202321641 U CN 2009202321641U CN 200920232164 U CN200920232164 U CN 200920232164U CN 201495122 U CN201495122 U CN 201495122U
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Abstract
The utility model discloses a coagulator automatic feeding control system, belonging to the field of sewage treatment. The coagulator automatic feeding control system comprises a feedforward control system, a PLC control system, a metering pump, a mixer and a filter tank, wherein the feedforward control system is arranged on a sewage inlet, and is composed of a flowmeter, an online TP analyzer and an online SS tester, wherein the feedforward can detect the flow capacity and TP, SS concentrations of sewage before treating the sewage, and then forwards feeds the detected results to the PLC control system which can regulate the feeding quantity and the feeding time of coagulator in time according to the flow capacity and feedforward of the TP and SS feedforward control systems, thereby determining the relationships of feeding quantity of the coagulator with the water inlet flow capacity and the TP and SS, and regulating the feeding quantity of coagulator in time according to the coagulating effect of sewage treatment, guaranteeing the optimal usage of the coagulator, and assures the water treatment effect.
Description
Technical field
The utility model relates to a kind of Sewage treatment systems and method, especially for micro flocculating filter or filtering automatic dosing control system of coagulating sedimentation and control method.
Background technology
At present, the whole world all is faced with the problem of shortage of water resources, and as limited resources, the regeneration of water is that advanced treatment of wastewater becomes unique approach of dealing with problems.
Research and development are economical, sewerage advanced treatment process improves water surrounding for subduing the total amount of pollutant efficiently, build good water surrounding and improve people's quality of life, have urgent realistic meaning.Advanced treatment generally adopts micro flocculating filter or coagulating sedimentation filtration process etc., further remove the principal pollutant of secondary effluent, and the coagulating agent that adds is the main running cost of micro flocculating filter or coagulating sedimentation filtration process, existing dosing system is just determined the dosage of coagulating agent according to flooding velocity and turbidity, yet dosing coagulant filters except removing turbidity, also total phosphorus (TP) and suspended solid (SS) had good effect of removing, and TP and SS be in the Sewage Plant secondary effluent integrated wastewater discharge standard primary standard A standard can not be up to standard most important index, and it is very unstable, the very few water outlet of dosing coagulant can not reach standard like this, coagulant dosage is excessive not only can be wasted, and can produce a large amount of mud.Therefore the automatic medicament feeding system of setting up based on TP, SS and water yield variation has important practical significance.
The utility model content
The purpose of this utility model is to provide in a kind of realization advanced treatment of wastewater treating processes, the Automatic Dosing control device that the flocculation agent of micro flocculating filter or coagulating sedimentation filtration process adds accurately automatically.
The utility model adopts following technical scheme for achieving the above object:
A kind of automatic dosing control system of coagulant comprises feedforward control system, PLC Controlling System, volume pump, mixing tank and filtering basin; Feedforward control system is arranged at the sewage equipped at outlet port, by the flow instrument of measuring the discharge of sewage, be used for measuring the online TP monitor of the content of sewage total phosphorus, be used for measuring the online SS determinator composition of sewage solid suspension content, flow instrument wherein, online TP monitor, the input terminus of online SS determinator respectively with the sewage delivery port, the input terminus of mixing tank is connected, flow instrument, online TP monitor, the output terminal of online SS determinator is connected with the input terminus of PLC Controlling System respectively, and the output terminal of PLC Controlling System connects volume pump successively, mixing tank, filtering basin.
Beneficial effect:
By using automatic dosing control system of coagulant described in the utility model, can in time adjust the add-on of coagulating agent according to the water quality and quantity fluctuation of water inlet, guarantee that the consumption of coagulating agent reaches optimum amount.Simultaneously, to the flow of sewage and the feedforward of water quality, in time adjust the add-on of coagulating agent, guarantee the water treatment effect according to the water quality and quantity that comes water according to the flow that is provided with and feedforward control system.
The utility model has the advantages that:
1, whole medicine system adopts computer program control, has guaranteed the stability of device operation;
2, realized closed-loop control, rely on dosing software design program to realize that any time adds the optimum control of dose, saved cost of water treatment greatly, guarantee to handle the back water conditioning, reach under the situation of high quality water quality in assurance, the consumption of coagulating agent reduces more than 20%;
3, the level of automation height has alleviated working strength of workers, has reduced the waste of medicament, having reduced the hesitation medicament adds inaccurate and risk that cause, advance to have reduced the chance that the workman contacts medicament, improved production efficiency, help the personnel reduction and enlargement of sewage work's production station simultaneously;
4, both be applicable to newly-built water factory, also be fit to tapping the potential and upgrade technologically of old water factory, and need not change original process structure substantially tapping the potential and upgrade technologically of old water factory;
5, it is little that effluent quality is subjected to the interference of source water quality, the water yield, improved the stability of water outlet, prolonged the work-ing life of the backwashing period and the filtrate in filter tank, improved producing water ratio, remarkable in economical benefits.
Description of drawings
Fig. 1 is a schema of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model and embodiment thereof are described in further detail.
Automatic dosing control system of coagulant of the present utility model comprises feedforward control system, PLC Controlling System, volume pump, mixing tank and filtering basin; Feedforward control system is arranged at the sewage equipped at outlet port, by the flow instrument of measuring the discharge of sewage, be used for measuring the online TP monitor of the content of sewage total phosphorus, be used for measuring the online SS determinator composition of sewage solid suspension content, flow instrument wherein, online TP monitor, the input terminus of online SS determinator respectively with the sewage delivery port, the input terminus of mixing tank is connected, flow instrument, online TP monitor, the output terminal of online SS determinator is connected with the input terminus of PLC Controlling System respectively, and the output terminal of PLC Controlling System connects volume pump successively, mixing tank, filtering basin.
Automatic dosing control system of coagulant operating process of the present utility model is as follows:
A, utilize flow instrument to measure the discharge of sewage;
B, utilize the content of total phosphorus in the online TP analysis-e/or determining sewage;
C, utilize online SS determinator to measure solid suspension content in the sewage;
D, the value of A-C step measurements is sent in the PCL Controlling System, the PCL Controlling System calculates coagulant charging quantity according to the result who measures, and then this dosage is sent to volume pump, and volume pump outputs to coagulating agent in the mixing tank according to this dosage;
E, mixing tank are rendered to coagulating agent in the sewage, then mixed water are outputed to filtering basin.Coagulant charging quantity is by formula X
Medicament=k*Q*L* (P-A)
a* (S-B)
b/ (λ * N) determines; In the formula,
K: correction factor, 0.5≤K≤1.5;
Q: the instantaneous delivery of actual flooding velocity meter;
L: standard medicine consumption;
P: the content of total phosphorus in the sewage of online TP monitor monitoring;
S: the content of the suspended solid that online SS determinator is measured;
A: the total phosphorous standard in the water outlet;
B: the solid suspension content standard in the water outlet;
A: modified index, 0.8≤a≤1.0;
B: undetermined coefficient, 0≤b≤0.2;
λ: soup specific gravity value;
N: soup per-cent.
Automatic dosing control system of coagulant of the present utility model is adjusted the coagulating agent add-on by the PLC Controlling System, and sends appointment to volume pump, and volume pump adds a certain amount of coagulating agent to mixing tank.Feedforward control system is before sewage disposal, the flow of mensuration sewage and TP, SS concentration, measurement result is feedovered to the PLC Controlling System, and the PLC Controlling System is in time adjusted amount and joining day that coagulating agent adds according to the feedforward of flow and TP and SS feedforward control system.
Claims (1)
1. an automatic dosing control system of coagulant is characterized in that: comprise feedforward control system, PLC Controlling System, volume pump, mixing tank and filtering basin; Feedforward control system is arranged at the sewage equipped at outlet port, by the flow instrument of measuring the discharge of sewage, be used for measuring the online TP monitor of the content of sewage total phosphorus, be used for measuring the online SS determinator composition of sewage solid suspension content, flow instrument wherein, online TP monitor, the input terminus of online SS determinator respectively with the sewage delivery port, the input terminus of mixing tank is connected, flow instrument, online TP monitor, the output terminal of online SS determinator is connected with the input terminus of PLC Controlling System respectively, and the output terminal of PLC Controlling System connects volume pump successively, mixing tank, filtering basin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202321641U CN201495122U (en) | 2009-09-18 | 2009-09-18 | Coagulator automatic feeding control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202321641U CN201495122U (en) | 2009-09-18 | 2009-09-18 | Coagulator automatic feeding control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201495122U true CN201495122U (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202321641U Expired - Fee Related CN201495122U (en) | 2009-09-18 | 2009-09-18 | Coagulator automatic feeding control system |
Country Status (1)
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| CN (1) | CN201495122U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101659462B (en) * | 2009-09-18 | 2011-09-28 | 河海大学 | Automatic dosing control system of coagulant and operation method |
| CN103112941A (en) * | 2013-01-31 | 2013-05-22 | 梁仲佳 | Town sewage treatment system |
| CN103864230A (en) * | 2014-03-05 | 2014-06-18 | 长沙中联重科环卫机械有限公司 | Scaling inhibitor adding control system, method and device as well as sewage treatment equipment |
| CN109667741A (en) * | 2017-10-13 | 2019-04-23 | 格兰富控股联合股份公司 | Metering pump for being dispensed into antisludging agent in the water treatment system based on film |
| CN113264609A (en) * | 2021-05-20 | 2021-08-17 | 浙江瑞鸿机电设备有限公司 | Filtering system and filtering method |
-
2009
- 2009-09-18 CN CN2009202321641U patent/CN201495122U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101659462B (en) * | 2009-09-18 | 2011-09-28 | 河海大学 | Automatic dosing control system of coagulant and operation method |
| CN103112941A (en) * | 2013-01-31 | 2013-05-22 | 梁仲佳 | Town sewage treatment system |
| CN103864230A (en) * | 2014-03-05 | 2014-06-18 | 长沙中联重科环卫机械有限公司 | Scaling inhibitor adding control system, method and device as well as sewage treatment equipment |
| CN109667741A (en) * | 2017-10-13 | 2019-04-23 | 格兰富控股联合股份公司 | Metering pump for being dispensed into antisludging agent in the water treatment system based on film |
| US11254588B2 (en) | 2017-10-13 | 2022-02-22 | Grundfos Holding A/S | Method for dosing antiscalant into a membrane-based water treatment system |
| CN113264609A (en) * | 2021-05-20 | 2021-08-17 | 浙江瑞鸿机电设备有限公司 | Filtering system and filtering method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20120918 |