CN207596676U - A kind of automatic medicament feeding system - Google Patents
A kind of automatic medicament feeding system Download PDFInfo
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- CN207596676U CN207596676U CN201721615307.8U CN201721615307U CN207596676U CN 207596676 U CN207596676 U CN 207596676U CN 201721615307 U CN201721615307 U CN 201721615307U CN 207596676 U CN207596676 U CN 207596676U
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- plc controller
- frequency conversion
- measurement instrument
- line measurement
- pump
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Abstract
The utility model discloses a kind of automatic medicament feeding systems, the medicine storing pot being electrically connected including PLC controller and respectively with PLC controller, frequency conversion dosing pump, digital metering pump, on-line measurement instrument, alarm, medicine storing pot is connected with frequency conversion dosing pump, digital metering pump is located at biological reaction pool front end, frequency conversion dosing pump is connected with secondary settling tank by pipeline, on-line measurement instrument is located in chlorination contact tank, digital metering pump, medicine storing pot and on-line measurement instrument transmit a signal to PLC controller respectively, PLC controller output signal controls frequency conversion dosing pump and alarm, it is fed back using the discharge of sewage, effluent quality is fed back, increasing feedback factor, totally three kinds of modes are jointly controlled, greatly reinforce the precision of medicine system control, so as to solve existing medicament waste and effluent quality instability problem during dosing.
Description
Technical field
The utility model is related to technical field of sewage, in particular to a kind of automatic medicament feeding system.
Background technology
At present, in sewage treatment process, all adding of agent modes of part of contaminated water processing enterprise, which use, manually to be adjusted
Dosing diaphragm pump is saved, the dosage on the same day is obtained using effluent quality and the integrated flow analysis of the previous day, because influent quality is deposited
In fluctuation, there are serious hysteresis quality and uncertainties, artificial to improve added amount of chemical intentionally to ensure standard water discharge rate,
So as to cause the waste of medicament, if influent quality fluctuation is serious, final outflow water discharge beyond standards are easily caused, therefore manually add medicament
It increases the increase of reagent cost and there are serious overproof water quality discharge risks.Automatic Dosing technology in existing sewage plant
There is application, there are many modes for automatic medicament feeding system pattern, and mainly using feedforward reaction, rear feed reacts two kinds, this two kinds automatic
There are hysteresis qualitys and unstability for medicine system.
Utility model content
For the above-mentioned prior art the problem of, the utility model provides a kind of automatic medicament feeding system, using sewage
Flow feedback, effluent quality feedback, increasing feedback factor, totally three kinds of modes are jointly controlled, and greatly reinforce medicine system control
Precision, so as to solve existing medicament waste and effluent quality instability problem during dosing.
To achieve the above object, the utility model provides following technical solution：
A kind of automatic medicament feeding system, the medicine storing pot being electrically connected including PLC controller and respectively with PLC controller, frequency conversion add
Teat pipette, digital metering pump, on-line measurement instrument, alarm, medicine storing pot are connected with frequency conversion dosing pump, and it is anti-that digital metering pump is located at biology
Ying Chi front ends, frequency conversion dosing pump are connected with secondary settling tank by pipeline, and on-line measurement instrument is located in chlorination contact tank, digital metering
Pump, medicine storing pot and on-line measurement instrument transmit a signal to PLC controller, the control frequency conversion dosing of PLC controller output signal respectively
Pump and alarm.
Further, medicine storing pot is equipped with dilution ratio input module, for the dilution ratio of medicament to be transmitted to PLC controls
Device.
Further, on-line measurement instrument is 3, respectively positioned at the water inlet of chlorination contact tank, water outlet and Chi Jiaochu.
The beneficial effects of the utility model are as follows:
1. carrying out discharge of sewage feedback using digital metering pump, effluent quality feedback is carried out using on-line measurement instrument, is used
The input module of medicine storing pot increases feedback factor, passes through the feedback control of three kinds of modes, hence it is evident that enhance the accurate of medicine system
Degree；
2. on-line measurement instrument sets 3 and positioned at different positions, the accuracy of effluent quality feedback is increased.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the technical solution of the utility model, with reference to the utility model
Attached drawing carries out the technical solution of the utility model clear, complete description, and based on the embodiment in the application, this field is general
Other similar embodiments that logical technical staff is obtained under the premise of creative work is not made, should all belong to the application
The range of protection.
Embodiment one：
As shown in Figure 1, a kind of automatic medicament feeding system, the drug storage that is electrically connected including PLC controller and respectively with PLC controller
Tank, frequency conversion dosing pump, digital metering pump, on-line measurement instrument, alarm, medicine storing pot are connected with frequency conversion dosing pump, digital metering pump
Positioned at biological reaction pool front end, frequency conversion dosing pump is connected with secondary settling tank by pipeline, and on-line measurement instrument is located at chlorination contact tank
Interior, digital metering pump, medicine storing pot and on-line measurement instrument transmit a signal to PLC controller, PLC controller output signal control respectively
Frequency conversion dosing pump and alarm processed.Medicine storing pot is equipped with dilution ratio input module, for the dilution ratio of medicament to be transmitted to PLC
Controller.On-line measurement instrument is 3, respectively positioned at the water inlet of chlorination contact tank, water outlet and Chi Jiaochu.
1. discharge of sewage feedback control：
The pump discharge that will intake in technological process or advanced treating promote the variable that pump discharge is corresponding dosage, set medicament
Coefficient is combined by unit consumption FACTOR P 1 with the discharge of sewage, and control system provides adding of agent value, and then dosage is according to sewage stream
The automatic variation of amount.
2. effluent quality feedback control：
According to effluent quality Passing Criteria, the stationary value of the online effluent quality standard such as setting total phosphorus, total nitrogen, chlorine residue, this
Stationary value can meet the requirement for reducing medicament waste and avoiding overproof water quality, i.e., best effluent quality setting value, according to water outlet
Online actual value is compared with setting value, and setting adds FACTOR P 2.In addition, when the actual measured value and setting value of effluent quality
When difference is beyond certain numerical value, representing processing equipment or failure occurs in medicament, PLC controller can send signals to alarm,
Alarm sends out alarm, and staff is reminded to be checked.On-line measurement instrument sets 3 and positioned at different position, increases
The accuracy of effluent quality feedback.
3. regulation coefficient feedback control：
Because discharge of sewage feedback and effluent quality feedback are there are fluctuation and hysteresis quality, easily cause effluent index it is relatively low or
It is higher, cause medicament waste or dosing insufficient；During day-to-day operation a certain proportion of dilution need to be carried out to medicament according to process requirements,
According to effluent quality and medicament actual conditions, dilution ratio often adjusts, and just can guarantee the accuracy of dosing, therefore add calculating
It during dose, needs that the dilution ratio is fed back to PLC controller in time, increases certain regulation coefficient P3 (i.e. extension rate),
Ensure that the normal of technique medicament adds.
4. dosage calculation formula
Show that different three kinds add FACTOR P 1, P2, P3 according to three kinds of control models, automatic dosing control system is according to throwing
Coefficient combined calculation is added to go out final dosing and adds setting value Q.
Q=Q1 × P1 × P2 × P3
Note：Q1：Flow of inlet water (ten thousand cubes/when)；P1：Unit consumption of medicine coefficient (dosage/ten thousand cube)；P2：Practical water quality/
Setting value；P3：Regulation coefficient.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (3)
- A kind of 1. automatic medicament feeding system, which is characterized in that the drug storage being electrically connected including PLC controller and respectively with PLC controller Tank, frequency conversion dosing pump, digital metering pump, on-line measurement instrument, alarm, medicine storing pot are connected with frequency conversion dosing pump, digital metering pump Positioned at biological reaction pool front end, frequency conversion dosing pump is connected with secondary settling tank by pipeline, and on-line measurement instrument is located at chlorination contact tank Interior, digital metering pump, medicine storing pot and on-line measurement instrument transmit a signal to PLC controller, PLC controller output signal control respectively Frequency conversion dosing pump and alarm processed.
- 2. automatic medicament feeding system according to claim 1, which is characterized in that the medicine storing pot is equipped with dilution ratio and inputs mould Block, for the dilution ratio of medicament to be transmitted to PLC controller.
- 3. automatic medicament feeding system according to claim 1, which is characterized in that the on-line measurement instrument is 3, is located at respectively Water inlet, water outlet and the Chi Jiaochu of chlorination contact tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721615307.8U CN207596676U (en) | 2017-11-28 | 2017-11-28 | A kind of automatic medicament feeding system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721615307.8U CN207596676U (en) | 2017-11-28 | 2017-11-28 | A kind of automatic medicament feeding system |
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| CN207596676U true CN207596676U (en) | 2018-07-10 |
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| CN201721615307.8U Active CN207596676U (en) | 2017-11-28 | 2017-11-28 | A kind of automatic medicament feeding system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537037A (en) * | 2018-11-28 | 2019-03-29 | 厦门建霖健康家居股份有限公司 | A kind of device and adding method thereof of dosing |
| CN111233120A (en) * | 2020-02-28 | 2020-06-05 | 深圳市长隆科技有限公司 | Defluorinating agent automatic reagent feeding system |
| CN113213712A (en) * | 2021-06-08 | 2021-08-06 | 合肥茂腾环保科技有限公司 | Fungus sediment anaerobic digestion effluent disposal system |
-
2017
- 2017-11-28 CN CN201721615307.8U patent/CN207596676U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537037A (en) * | 2018-11-28 | 2019-03-29 | 厦门建霖健康家居股份有限公司 | A kind of device and adding method thereof of dosing |
| CN111233120A (en) * | 2020-02-28 | 2020-06-05 | 深圳市长隆科技有限公司 | Defluorinating agent automatic reagent feeding system |
| CN113213712A (en) * | 2021-06-08 | 2021-08-06 | 合肥茂腾环保科技有限公司 | Fungus sediment anaerobic digestion effluent disposal system |
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