CN214141622U - Automatic regulation dosing control system - Google Patents
Automatic regulation dosing control system Download PDFInfo
- Publication number
- CN214141622U CN214141622U CN202022698914.3U CN202022698914U CN214141622U CN 214141622 U CN214141622 U CN 214141622U CN 202022698914 U CN202022698914 U CN 202022698914U CN 214141622 U CN214141622 U CN 214141622U
- Authority
- CN
- China
- Prior art keywords
- control system
- flow meter
- dosing
- electromagnetic flow
- programmable controller
- 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.)
- Active
Links
Images
Landscapes
- Flow Control (AREA)
Abstract
The utility model discloses an automatic adjust and add medicine volume control system, include: a flow measuring device, a programming control system, and a dosing control system; the flow measuring device comprises a water inlet end electromagnetic flow meter 1 and a dosing pump outlet end electromagnetic flow meter 2; the programming control system comprises an upper computer and a programmable controller 5; the dosing control system comprises a variable frequency control system 6, a dosing pump and a medicament barrel; the water end electromagnetic flow meter 1 is installed at the water inlet end, the dosing pump outlet end electromagnetic flow meter 2 is installed at the outlet end of the dosing pipeline, and the water inlet end electromagnetic flow meter 1 and the dosing pump outlet end electromagnetic flow meter 2 are electrically connected with the programmable controller 5; the upper computer is connected with the programmable controller 5. The utility model discloses system's equipment investment is few, and the combination is nimble, does not have too much complex construction, and control intelligence reduces work load and constitutes.
Description
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to an automatic adjustment dosing control system.
Background
In the water treatment engineering, the process of adding chemicals is involved in both the water purification treatment and the sewage treatment. The requirement of the dosage can be changed because the water inflow is unstable and the water quality is variable, and the dosage directly influences the water treatment effect if not treated well.
Most of the existing automatic dosing control systems adopt Proportional Integral Derivative (PID) operation with a fixed target value, and have a good control effect only under the condition that the water quantity and the water quality are relatively fixed, but cannot automatically change the dosing quantity according to the water inlet condition.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to solve the problem that the dosage can not be automatically changed according to the water inlet condition in the water treatment process.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides an automatically regulated adds medicine control system, automatically regulated adds medicine control system one end and connects at the end of intaking, and medicine pipeline is connected to one end, includes: a flow measuring device, a programming control system, and a dosing control system; the flow measuring device is characterized by comprising a water inlet end electromagnetic flow meter and a dosing pump outlet end electromagnetic flow meter; the programming control system comprises an upper computer and a programmable controller; the dosing control system comprises a variable frequency control system, a dosing pump and a medicament barrel; the water end electromagnetic flow meter is arranged at the water inlet end, the dosing pump outlet end electromagnetic flow meter is arranged at the outlet end of the dosing pipeline, and the water inlet end electromagnetic flow meter and the dosing pump outlet end electromagnetic flow meter are electrically connected with the programmable controller; the upper computer is connected with the programmable controller; the programmable controller is electrically connected with the variable frequency control system; the variable frequency control system is electrically connected with the dosing pump; the medicine feeding pump is installed at the medicine feeding end of the medicine feeding pipeline.
Further, the upper computer sets a dosing concentration set value and a dissolved medicine concentration set value, and the dosing concentration set value and the dissolved medicine concentration set value are input into the programmable controller through the upper computer.
Further, the programmable controller (5) calculates a frequency control value of the dosing pump through a program, and transmits the frequency control value to the variable frequency control system (6), and the variable frequency control system (6) changes the frequency value of the dosing pump so as to change the dosing amount.
Further, the frequency control value transmitted to the variable frequency control system (6) by the programmable controller (5) is an analog quantity signal, and the size of the analog quantity signal is 4-20 mA.
Furthermore, the water inlet end electromagnetic flow meter and the medicine adding pump outlet end electromagnetic flow meter output analog quantity signals respectively, and the analog quantity signals are 4-20mA in size.
The beneficial effects of the utility model reside in that:
1. the utility model discloses an automatic system adds the medicine volume and can follow the inflow size automatically and change to the medicine volume error of appearing of making because of artifical intervention control has been reduced. The waste of the medicament is reduced, and the labor cost and the medicament cost are reduced;
2. the system has less equipment investment and flexible combination, can be independently packaged in a whole set, can also be combined to a Distributed Control System (DCS), does not need too many complex structures, is intelligent to control, and reduces the workload composition;
3. the application range is wide, and the device is respectively suitable for automatic control of adding of various medicaments such as Polyacrylamide (PAM), polyaluminium chloride (PAC), a decolorant, ferrous sulfate and the like in sewage treatment.
Drawings
FIG. 1 is a schematic view of the automatic medicine-feeding system of the present invention
Reference numerals: 1. a water inlet end electromagnetic flowmeter; 2. an electromagnetic flow meter is arranged at the outlet end of the dosing pump; 3. the dosing concentration set value D1; 4. a drug dissolution concentration set point D2; 5. a programmable controller; 6. and (4) a variable frequency control system.
Detailed Description
The following detailed description of the invention is provided in connection with the accompanying drawings and the specific embodiments.
As shown in fig. 1, the utility model discloses an automatic adjust and add medicine volume control system, this system one end is connected and is being intake the end, and medicine pipeline is connected to one end, include: a flow measuring device, a programming control system, and a dosing control system; the flow measuring device comprises a water inlet end electromagnetic flow meter 1 and a dosing pump outlet end electromagnetic flow meter 2; the programming control system comprises an upper computer and a programmable controller 5; the dosing control system comprises a variable frequency control system 6, a dosing pump and a medicament barrel; the water inlet end electromagnetic flow meter 1 is installed at the water inlet end, the dosing pump outlet end electromagnetic flow meter 2 is installed at the outlet end of the dosing pipeline, and the water inlet end electromagnetic flow meter 1 and the dosing pump outlet end electromagnetic flow meter 2 are electrically connected with the programmable controller 5; the upper computer is connected with the programmable controller 5; the programmable controller 5 is electrically connected with the variable frequency control system; the variable frequency control system 6 is electrically connected with the dosing pump; the medicine feeding pump is installed at the medicine feeding end of the medicine feeding pipeline.
The upper computer sets a dosing concentration set value D1 and a dissolved medicine concentration set value D2, and the dosing concentration set value D1 and the dissolved medicine concentration set value D2 are input into the programmable controller 5 through the upper computer;
the practical content of the utility model is as follows:
firstly, measuring the instantaneous flow value F of a water inlet end through a water inlet end electromagnetic flow meter 1 and a dosing pump outlet end electromagnetic flow meter 21(m3H) and instantaneous flow value F of the dosage2(m3H); the instantaneous flow value is obtained by respectively outputting an analog quantity signal (4-20mA) to a programmable controller (5) through an electromagnetic flow meter (1) at the water inlet end and an electromagnetic flow meter (2) at the drug pump outlet end, and converting the analog quantity signals by the programmable controller (5), wherein the analog quantity signal is 4-20mA in size.
And secondly, manually inputting a dosing concentration set value D1 and a dissolving concentration set value D2 into the programmable controller 5 through an upper computer.
Wherein the concentration of the added medicine D1The set point (mg/l) is an empirical value, generally obtained by a worker looking up a table, as shown in table 1; and the concentration of dissolved drug D2Set point (kg/m)3) Equal to the weight of the medicament divided by the volume of the dissolving pool。
TABLE 1 values of the concentrations of the drugs added
| Serial number | Name of medicament | Feeding action | Adding medicine concentration value (mg/L) |
| 1 | PAM (cationic) | Flocculation | 1-2 |
| 2 | PAC | Coagulation | 100-200 |
| 3 | Ferrous sulfate heptahydrate | Coagulation | 450-1000 |
| 4 | Nutrient salt | Is beneficial to the growth of microorganisms | 20-50 |
Thirdly, when the programmable controller 5 receives the above values, the calculation is carried out by a formula, that is to sayF3 (D1/D2) F1, i.e. the dosing concentration set point D1 and the solute concentration set point D2 are proportionally calculated and multiplied by the total instantaneous flow F of inlet water1(m3H) finally obtaining the instantaneous flow value F of the current dosage3(m3/h)。
Fourthly, calculating the instantaneous flow value F of the current medicine adding quantity by the programmable controller 53(m3H) as target value and actually measured instantaneous flow value F of the medicine-adding quantity2(m3And/h) obtaining an analog quantity value after proportional-integral regulation operation is carried out on the feedback value, wherein the analog quantity value is in direct proportion to the frequency value of the dosing pump. The analog quantity value outputs a control current of 4-20mA through a module of the programmable controller 5, and the control current is connected to a corresponding interface of the variable frequency control system 6, so that the control of the frequency converter of the dosing pump can be completed. In this process, thereby this practicality type realizes adjusting control the dose through the frequency control to the dosing pump.
Because the target value is the current dosing quantity instantaneous flow value F3(m3H), the target value is changed along with the change of the total water inflow, so that the required medicine amount is increased when the total water inflow is increased, and the frequency of a medicine adding pump is correspondingly increased at the moment, so that the medicine adding amount is increased; on the same principle, when the total water amount is reduced, the dosage is reduced. Therefore, the utility model can realize the effect of automatic adjustment of the medicine adding amount.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any changes and modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.
Claims (5)
1. The utility model provides an automatically regulated adds medicine control system, automatically regulated adds medicine control system one end and connects into water the end, and medicine pipeline is connected to one end, includes: a flow measuring device, a programming control system, and a dosing control system; the method is characterized in that: the flow measuring device comprises a water inlet end electromagnetic flow meter (1) and a dosing pump outlet end electromagnetic flow meter (2); the programming control system comprises an upper computer and a programmable controller (5); the dosing control system comprises a variable frequency control system (6), a dosing pump and a medicament barrel; the water inlet end electromagnetic flow meter (1) is installed at the water inlet end, the dosing pump outlet end electromagnetic flow meter (2) is installed at the outlet end of the dosing pipeline, and the water inlet end electromagnetic flow meter (1) and the dosing pump outlet end electromagnetic flow meter (2) are electrically connected with the programmable controller (5); the upper computer is connected with the programmable controller; the programmable controller is electrically connected with the variable frequency control system; the variable frequency control system (6) is electrically connected with the dosing pump; the medicine feeding pump is installed at the medicine feeding end of the medicine feeding pipeline.
2. The automatic dosage control system according to claim 1, wherein the upper computer sets a dosage concentration set value (3) and a drug dissolution concentration set value (4), and the dosage concentration set value (3) and the drug dissolution concentration set value (4) are input into the programmable controller (5) through the upper computer.
3. The automatic dosage control system according to claim 1, wherein the programmable controller (5) calculates a frequency control value of the dosage pump by a program, and transmits the frequency control value to the variable frequency control system (6), and the variable frequency control system (6) changes the frequency value of the dosage pump to change the dosage.
4. An automatic adjustment dosing amount control system according to claim 1, characterized in that the frequency control value transmitted to the variable frequency control system (6) by the programmable controller (5) is an analog signal with a size of 4-20 mA.
5. The automatic medicine-adding amount adjusting control system according to claim 1, wherein the water inlet end electromagnetic flow meter (1) and the medicine-adding pump outlet end electromagnetic flow meter (2) respectively output an analog amount signal, and the analog amount signal is 4-20mA in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022698914.3U CN214141622U (en) | 2020-11-19 | 2020-11-19 | Automatic regulation dosing control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022698914.3U CN214141622U (en) | 2020-11-19 | 2020-11-19 | Automatic regulation dosing control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214141622U true CN214141622U (en) | 2021-09-07 |
Family
ID=77565950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022698914.3U Active CN214141622U (en) | 2020-11-19 | 2020-11-19 | Automatic regulation dosing control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214141622U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114789022A (en) * | 2022-05-11 | 2022-07-26 | 华夏中然生态科技集团有限公司 | Medicine adding amount control system based on residual active oxygen concentration change |
| DE102021125262A1 (en) | 2021-09-29 | 2023-03-30 | Prominent Gmbh | Method for dosing a dosing medium and a dosing system for carrying out the method |
-
2020
- 2020-11-19 CN CN202022698914.3U patent/CN214141622U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021125262A1 (en) | 2021-09-29 | 2023-03-30 | Prominent Gmbh | Method for dosing a dosing medium and a dosing system for carrying out the method |
| CN114789022A (en) * | 2022-05-11 | 2022-07-26 | 华夏中然生态科技集团有限公司 | Medicine adding amount control system based on residual active oxygen concentration change |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214141622U (en) | Automatic regulation dosing control system | |
| CN110862188B (en) | Chemical phosphorus removal accurate dosing system and control method | |
| CN206897364U (en) | A kind of fluoride waste calcium chloride automatic medicine adding apparatus | |
| CN201139974Y (en) | Automatic medicine-feed control system for coagulant | |
| CN206872498U (en) | Sewage treatment drug dosing system and sewage disposal system | |
| CN111470628A (en) | Carbon source medicament adding equipment and adding method | |
| CN107836196A (en) | A kind of water-fertilizer integral fertilizer applicator | |
| CN105439285A (en) | Regulation and control method of wastewater treatment | |
| CN201534071U (en) | Full automatic continuous dosing device | |
| CN205581662U (en) | Accurate high position medicine system of flowing automatically | |
| CN205856256U (en) | The intelligence control system of sewage treatment plant's key process parameter | |
| CN210066360U (en) | Papermaking bactericide adding system | |
| CN114920358B (en) | RBS intelligent control method for sewage plant | |
| CN211445240U (en) | Biochemical tank medicament or nutritive salt are at uniform velocity dosing system | |
| CN214174904U (en) | Intelligent aeration quantity calculation control system for sewage treatment | |
| CN212740797U (en) | Device for maintaining oxygen content of deaerated water stable | |
| CN202880980U (en) | Improved lime milk solution dosing control device | |
| CN109874452B (en) | Accurate biogas slurry applying device and method | |
| CN212865235U (en) | Down washing charger | |
| CN218665549U (en) | PH adjusting and controlling device | |
| CN206203968U (en) | A kind of automatic gauge acid adding dechlorination equipment | |
| CN114560561B (en) | Intelligent control system and method for denitrification and dephosphorization dosing coupling membrane pollution of MBR process | |
| CN206778360U (en) | One kind becomes more meticulous dosing stirring system | |
| CN205340784U (en) | Synthetic feeding device of ludox | |
| CN220467720U (en) | Accurate carbon source feeding system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |