CN112744944A - Automatic dosing control system and method suitable for reverse osmosis water treatment device - Google Patents
Automatic dosing control system and method suitable for reverse osmosis water treatment device Download PDFInfo
- Publication number
- CN112744944A CN112744944A CN202011332996.8A CN202011332996A CN112744944A CN 112744944 A CN112744944 A CN 112744944A CN 202011332996 A CN202011332996 A CN 202011332996A CN 112744944 A CN112744944 A CN 112744944A
- Authority
- CN
- China
- Prior art keywords
- detector
- dosing
- water
- sensor
- automatic
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 136
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 12
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910001424 calcium ion Inorganic materials 0.000 claims abstract description 22
- 229910001425 magnesium ion Inorganic materials 0.000 claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 239000003814 drug Substances 0.000 claims description 21
- 230000007797 corrosion Effects 0.000 claims description 14
- 238000005260 corrosion Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 239000002455 scale inhibitor Substances 0.000 claims description 9
- 239000003112 inhibitor Substances 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 12
- 239000002699 waste material Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 229940079593 drug Drugs 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000012670 alkaline solution Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003619 algicide Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/05—Conductivity or salinity
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to an automatic dosing control system suitable for a reverse osmosis water treatment device, which comprises an automatic control cabinet, a dosing device and a water quality sensor for monitoring the water quality of external cold water in real time, wherein the water quality sensor comprises a calcium ion sensor, a magnesium ion sensor, a conductivity sensor and a PH sensor which output electric signals proportional to water data; the automatic control cabinet comprises a detector used for comparing with a water quality sensor electric signal machine to output deviation signals, the detector comprises a calcium ion concentration detector, a magnesium ion concentration detector, a conductivity detector and a PH detector which correspond to the water quality sensor one by one, the detector is connected with a regulator used for processing detector information, and the regulator is connected with a frequency converter used for regulating the speed of the dosing device. Through adopting above-mentioned technical scheme, the cold system operation's of valve stability has been reduced to the cold system operation cost of valve.
Description
Technical Field
The invention belongs to the technical field of electric power, and particularly relates to an automatic dosing control system and method suitable for a reverse osmosis water treatment device.
Background
The valve cooling system of the high-voltage direct-current transmission system is divided into an inner cooling water system and an outer cooling water system, wherein the inner cooling water system mainly provides cooling water for the converter valve and absorbs heat emitted by the converter valve in operation so as to maintain the normal working temperature of the converter valve and ensure the reliable operation of the converter valve; the outer cold water system is an open-type circulating system, and the main equipment comprises a cooling tower, a spray water tank and a spray water pump, wherein the spray water pump pumps water from the outdoor outer cold water tank, uniformly sprays water on the surface of a heat exchange coil in the cooling tower to absorb the heat of the inner cold water, the cooling tower continuously discharges water vapor formed after heat absorption to the atmosphere, and condensed water flows back to the outer cold water tank to realize the purpose of continuously cooling the inner cold water.
In the continuous circulating use process of the external cold water system, due to the combined action of various factors such as the rising of the temperature of water, the change of the water flow speed, the evaporation of water, the concentration of various inorganic ions and organic substances, dust and impurities entering from the outside, equipment structures and materials and the like, the problems of serious attachment of sediments, equipment corrosion, massive breeding of microorganisms, blockage of pipelines by the formed dirt and the like are caused. Although reverse osmosis devices are installed on external cold water systems in part of stations, scaling conditions can be relieved to a great extent, scaling is still inevitable after long-term operation or when the reverse osmosis devices swell, so that corrosion and scale inhibitors and sterilization algicide need to be added to cooling water to prevent pipelines from scaling and corroding.
However, in order to maintain the conductivity of external cold water not to exceed the standard, many direct current converter stations need to discard water periodically every day to accelerate water circulation, and bactericide and scale inhibitor dosing strategies are established according to the water discard amount, and adopt automatic dosing at regular time and quantity, and also can adopt manual dosing to adjust when the conductivity value is higher.
The scale inhibitor is added every day
(wherein P is the adding concentration mg/L, Q is the daily water abandoning amount t)
This dosing strategy has the following problems: the water quality cannot be monitored in real time to form a closed loop system, if the scale inhibitor amount is too small, the scale removal effect cannot be achieved, but if the scale inhibitor amount is too large, dirt blockage can be caused, equipment aging is accelerated, and therefore the operation of a valve cooling system is unstable and the operation cost is increased.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an automatic dosing control system and method suitable for a reverse osmosis water treatment device, which have the advantage of improving the running stability of a valve cooling system and reduce the running cost of the valve cooling system.
In order to achieve the purpose, the invention provides the following technical scheme:
an automatic dosing control system suitable for a reverse osmosis water treatment device comprises an automatic control cabinet, a dosing device and a water quality sensor for monitoring the water quality of external cold water in real time, wherein the water quality sensor comprises a calcium ion sensor, a magnesium ion sensor, a conductivity sensor and a PH sensor which output electric signals proportional to water data; the automatic control cabinet including be used for with the quality of water sensor electric signal machine compares the detector of output deviation signal, the detector including with quality of water sensor one-to-one's calcium ion concentration detector, magnesium ion concentration detector, conductivity detector and PH detector, the detector is connected with the processing the regulator of detector information, the regulator be connected with be used for right the converter of charge device speed governing.
Through adopting above-mentioned technical scheme, the water quality sensor is including calcium ion sensor, magnesium ion sensor, conductivity sensor, PH sensor, and this system not only detects the conductivity of quality of water, still comprehensive compromise simultaneously and detect probably cause the pipeline scale deposit and the corroded calcium ion concentration, magnesium ion concentration and pH value, through the outer cold water quality of water of real-time supervision, automatic dynamic adjustment adds the medicine pump operation, forms closed loop system, the stability of poppet valve cold system operation. On one hand, by monitoring the external cold water in real time, if the water quality reaches the standard, the condition of water abandonment can be reduced, the waste of water resources is reduced, and meanwhile, the scale and corrosion inhibitor is quantitatively and effectively put in, the waste of medicines is avoided, and the running cost of a valve cooling system is further reduced; on the other hand, the pollution of the waste water with higher ion concentration and conductivity of the external cold water to the surrounding environment is also avoided.
The invention is further configured to: the dosing device comprises a dosing tank, a dosing pump and a dosing pipe, wherein the dosing pump is installed at the top of the dosing tank, and the dosing pipe is used for connecting the dosing pump and the water tank.
By adopting the technical scheme, a closed loop strategy of monitoring multiple indexes of the water quality of the external cold water, adjusting the water quality and feeding back the medicine adding effect is formed, and the real-time feedback condition of the external cold water is timely adjusted by controlling the starting and stopping of a medicine adding pump motor and the power of a medicine adding device, so that the running stability of a cold system of the valve is improved.
The invention is further configured to: the medicine adding tank is provided with an alarm device for liquid level alarm reminding.
By adopting the technical scheme, the idle running condition of the dosing pump is avoided, and the effect of protecting the dosing pump is achieved.
The invention is further configured to: the automatic control cabinet controls the opening and closing of the dosing pump and the alarm device, and the dosing pump is connected with the frequency converter through an electric signal.
Through adopting above-mentioned technical scheme, through signal of telecommunication connection between dosing pump and the converter for the automatic control cabinet can in time adjust charge device according to the real-time data of detector.
The invention is further configured to: the dosing tank comprises an acid solution tank for adjusting the quality of external cold water, an alkali solution tank and a scale and corrosion inhibitor tank.
By adopting the technical scheme, normally running external cold water is not easy to scale and corrode when being in a weak alkali and low hardness state, but the pH value of the external cold water fluctuates along with the evaporation and concentration operation of the external cold water, so that when the monitored pH value is low, an alkaline solution is added through the alkaline solution tank, and when the monitored pH value is high, an acid solution is added through the acid solution tank, so that the external cold water is maintained in the weak alkali and low hardness state, and the pipeline protection effect is achieved.
An automatic dosing control method suitable for a reverse osmosis water treatment device comprises the following steps:
s1, monitoring the quality of the external cold water in real time through the water quality sensor, and uploading the acquired real-time data to the detector by the water quality sensor for detection and display;
s2, the detector detects the real-time data, when the real-time data exceeds a set range, the detector outputs an electric signal to the regulator, and the regulator compares the electric signal with a preset value to obtain a deviation signal;
s3, the regulator performs proportional and integral operation on the deviation signal and outputs an operation result signal to the frequency converter;
and S4, controlling the motor speed of the dosing pump by the frequency converter according to the operation result signal of the regulator, and further achieving the effect of controlling the dosing pump.
By adopting the technical scheme, on one hand, the external cold water is monitored in real time, the condition of water abandonment can be reduced if the water quality reaches the standard, the waste of water resources is reduced, and meanwhile, the scale and corrosion inhibitor is quantitatively and effectively put in, so that the waste of medicines is avoided; on the other hand, the pollution of the waste water with higher ion concentration and conductivity of the external cold water to the surrounding environment is also avoided. Meanwhile, the external cold water is monitored in real time, the water quality parameter is prevented from exceeding the standard, and the scaling and corrosion of the pipeline are effectively slowed down, so that the safe and stable operation of the direct current transmission system is guaranteed, and the direct current transmission system has good economic benefit and application value.
The invention is further configured to: in the step S2, in the step S,
when the detector is a conductivity detector, the setting range is 800-;
when the detector is a PH detector, the set range is 6.5-8.5, the PH detector outputs an electric signal for adding the acidic medicament when detecting that the PH of the water is over 8.5, and the PH detector outputs an electric signal for adding the alkaline medicament when detecting that the PH of the water is under 6.5;
when the detector is a calcium ion detector and a magnesium ion detector, the set range is that an electric signal for automatically adding the scale inhibitor is output when the calcium ion concentration is more than 200mg/L or the magnesium ion concentration is more than 60mg/L, and a medicine adding stopping signal is output when the calcium ion concentration is less than 180mg/L and the magnesium ion concentration is less than 48 mg/L.
By adopting the technical scheme, the detector processes the sensor data in real time, and when the detector detects the data exceeding the set range, the detector can output corresponding electric signals in time, so that the medicine adding effect of automatic adjustment is achieved.
The invention is further configured to: when the liquid level of the medicine adding tank is lower than the liquid level required by the automatic control cabinet, the automatic control cabinet drives the alarm device to give out sound and light alarm.
By adopting the technical scheme, the idle running condition of the dosing pump is avoided, and the effect of protecting the dosing pump is achieved; meanwhile, the working personnel are reminded of adding the external water in time, the external water cooling system is prevented from being maintained, and the running stability of the valve cooling system is improved.
In conclusion, the invention has the following beneficial effects:
1. the system not only detects the conductivity of water quality, but also comprehensively detects the calcium ion concentration, the magnesium ion concentration and the pH value which possibly cause pipeline scaling and corrosion, automatically and dynamically adjusts the operation of a dosing pump by monitoring the water quality of external cold water in real time to form a closed loop system and improve the stability of the operation of a cold system;
2. by monitoring the external cold water in real time, the condition of water abandonment can be reduced if the water quality reaches the standard, the waste of water resources is reduced, and simultaneously, the scale and corrosion inhibitor is quantitatively and effectively put in, so that the waste of medicines is avoided, and the running cost of a valve cooling system is further reduced; meanwhile, the pollution of the discarded water with higher ion concentration and conductivity of the external cold water to the surrounding environment is avoided.
Drawings
Fig. 1 is a schematic diagram of an automatic control cabinet according to the embodiment.
Reference numerals: 1. an external cold water circulation pump; 2. an automatic control cabinet; 31. an acid solution tank; 32. an alkaline solution tank; 33. a scale and corrosion inhibitor tank; 4. a calcium ion sensor; 5. a magnesium ion sensor; 6. a pH sensor; 7. a conductivity sensor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the automatic chemical feeding control system suitable for a reverse osmosis water treatment device disclosed by the invention comprises an external cooling water pool, an external cold water circulating pump 1, an automatic control cabinet 2, a chemical feeding device and a water quality sensor for monitoring the water quality of external cold water in real time, wherein the water quality sensor comprises a calcium ion sensor 4, a magnesium ion sensor 5, a conductivity sensor 7 and a PH sensor 6; the automatic control cabinet 2 comprises a detector used for being in signal connection with the water quality sensor, the detector comprises a PH detector, a conductivity detector, a calcium ion concentration detector and a magnesium ion concentration detector, the detector is in signal connection with a regulator used for processing detection information, the regulator is in signal connection with a frequency converter used for regulating the speed of the dosing device, and the frequency converter is an alternating current frequency converter.
The dosing device comprises a dosing tank and a dosing pump used for the dosing tank, the dosing pump is installed at the top of the dosing tank, the dosing pipe is used for connecting the dosing pump and a water tank, and the dosing tank is provided with an alarm device for reminding of liquid level alarm. The automatic control cabinet 2 controls the opening and closing of the dosing pump and the alarm device, and the dosing pump is connected with the frequency converter through an electric signal.
The dosing tank comprises an acid solution tank 31, an alkali solution tank 32 and a scale and corrosion inhibitor tank 33.
An automatic dosing control method suitable for a reverse osmosis water treatment device comprises the following steps:
s1, monitoring the quality of the external cold water in real time through a water quality sensor, and uploading the acquired real-time data to a detector by the water quality sensor for detection and display;
s2, the detector detects the real-time data, when the real-time data exceeds the set range of the detector, the detector outputs an electric signal to the regulator, the regulator compares the electric signal with a preset value to obtain a deviation signal, wherein the set range of the detector is as follows:
when the detector is a conductivity detector, the setting range is 800-;
when the detector is a calcium ion detector and a magnesium ion detector, the set range is that an electric signal for automatically adding the scale inhibitor is output when the calcium ion concentration is more than 200mg/L or the magnesium ion concentration is more than 60mg/L, and a medicine adding stopping signal is output when the calcium ion concentration is less than 180mg/L and the magnesium ion concentration is less than 48 mg/L;
when the detector is a PH detector, the set range is 6.5-8.5, the PH detector outputs an electric signal for adding the acidic medicament when detecting that the PH of the water exceeds 8.5, and the PH detector outputs an electric signal for adding the alkaline medicament when detecting that the PH of the water is lower than 6.5;
s3, the regulator performs proportional and integral operation on the deviation signal and outputs an operation result signal to the frequency converter;
and S4, controlling the motor speed of the dosing pump by the frequency converter according to the operation result signal of the regulator, thereby achieving the effect of controlling the dosing pump.
When the liquid level of the dosing tank is lower than the liquid level required by the dosing pump, the automatic control cabinet 2 drives the alarm device to give out sound and light alarm.
Therefore, the system and the method not only detect the conductivity of the water, but also comprehensively consider the detection of the calcium ion concentration, the magnesium ion concentration and the pH value which possibly cause the scaling and corrosion of the pipeline, and automatically and dynamically adjust the operation of the dosing pump by monitoring the water quality of the external cold water in real time to form a closed-loop system.
On one hand, by monitoring the external cold water in real time, the condition of water abandonment can be reduced if the water quality reaches the standard, the waste of water resources is reduced, and meanwhile, the scale and corrosion inhibitor is quantitatively and effectively put in, so that the waste of medicines is avoided; on the other hand, the pollution of the waste water with higher ion concentration and conductivity of the external cold water to the surrounding environment is also avoided.
Meanwhile, the external cold water is monitored in real time, the water quality parameter is prevented from exceeding the standard, and the scaling and corrosion of the pipeline are effectively slowed down, so that the safe and stable operation of the direct current transmission system is guaranteed, and the direct current transmission system has good economic benefit and application value.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (8)
1. An automatic dosing control system suitable for a reverse osmosis water treatment device is characterized by comprising an automatic control cabinet (2), a dosing device and a water quality sensor for monitoring the water quality of external cold water in real time, wherein the water quality sensor comprises a calcium ion sensor (4), a magnesium ion sensor (5), a conductivity sensor (7) and a PH sensor (6) which output electric signals proportional to water data; the automatic control cabinet (2) including be used for with the quality of water sensor teleseme compares the detector of output deviation signal, the detector including with quality of water sensor one-to-one's calcium ion concentration detector, magnesium ion concentration detector, conductivity detector and PH detector, the detector is connected with the processing the regulator of detector information, the regulator be connected with be used for right the converter of charge device speed governing.
2. The automatic dosing control system suitable for the reverse osmosis water treatment device according to claim 1, wherein the dosing device comprises a dosing tank, a dosing pump and a dosing pipe, the dosing pump is mounted at the top of the dosing tank, and the dosing pipe is used for connecting the dosing pump and the water tank.
3. The automatic dosing control system suitable for the reverse osmosis water treatment device according to claim 2, wherein the dosing tank is provided with an alarm device for liquid level alarm reminding.
4. The automatic dosing control system suitable for the reverse osmosis water treatment device according to claim 3, wherein the automatic control cabinet (2) controls the on and off of the dosing pump and the alarm device, and the dosing pump is connected with the frequency converter through an electric signal.
5. The automatic dosing control system suitable for the reverse osmosis water treatment device according to claim 4, wherein the dosing tank comprises an acid solution tank (31), an alkali solution tank (32) and a scale and corrosion inhibitor tank (33) for adjusting the quality of the external cold water.
6. An automatic dosing control method for a reverse osmosis water treatment device, which is applied to the automatic dosing control system for a reverse osmosis water treatment device according to claim 5, comprising the steps of:
s1, monitoring the quality of the external cold water in real time through the water quality sensor, and uploading the acquired real-time data to the detector by the water quality sensor for detection and display;
s2, the detector detects the real-time data, when the real-time data exceeds a set range, the detector outputs an electric signal to the regulator, and the regulator compares the electric signal with a preset value to obtain a deviation signal;
s3, the regulator performs proportional and integral operation on the deviation signal and outputs an operation result signal to the frequency converter;
and S4, controlling the motor speed of the dosing pump by the frequency converter according to the operation result signal of the regulator, and further achieving the effect of controlling the dosing pump.
7. The automatic dosing control method for a reverse osmosis water treatment device according to claim 6, wherein in S2,
when the detector is a conductivity detector, the setting range is 800-1000 mus/cm, the conductivity detector outputs an electric signal for automatically adding the scale inhibitor when detecting that the water conductivity exceeds the upper limit value of 1000 mus/cm, and the conductivity detector outputs an electric signal for stopping adding the medicine when detecting that the water conductivity is lower than 800 mus/cm;
when the detector is a PH detector, the set range is 6.5-8.5, the PH detector outputs an electric signal for adding the acidic medicament when detecting that the PH of the water is over 8.5, and the PH detector outputs an electric signal for adding the alkaline medicament when detecting that the PH of the water is under 6.5;
when the detector is a calcium ion detector and a magnesium ion detector, the set range is that an electric signal for automatically adding the scale inhibitor is output when the calcium ion concentration is more than 200mg/L or the magnesium ion concentration is more than 60mg/L, and a medicine adding stopping signal is output when the calcium ion concentration is less than 180mg/L and the magnesium ion concentration is less than 48 mg/L.
8. The automatic dosing control method suitable for the reverse osmosis water treatment device according to claim 7, wherein when the dosing tank liquid level is lower than the required liquid level of the automatic control cabinet (2), the automatic control cabinet (2) drives the alarm device to give out an audible and visual alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011332996.8A CN112744944A (en) | 2020-11-24 | 2020-11-24 | Automatic dosing control system and method suitable for reverse osmosis water treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011332996.8A CN112744944A (en) | 2020-11-24 | 2020-11-24 | Automatic dosing control system and method suitable for reverse osmosis water treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112744944A true CN112744944A (en) | 2021-05-04 |
Family
ID=75648381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011332996.8A Pending CN112744944A (en) | 2020-11-24 | 2020-11-24 | Automatic dosing control system and method suitable for reverse osmosis water treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112744944A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115541682A (en) * | 2022-09-30 | 2022-12-30 | 西安交通大学 | An online monitoring platform for cooling towers |
| CN121107630A (en) * | 2025-09-05 | 2025-12-12 | 广东莞绿环保科技有限公司 | A smart water treatment dosing system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10244634A1 (en) * | 2002-09-25 | 2004-04-08 | Hartl, Kurt, Prof. Dr. | Irrigation system, to give water sprays at time intervals, has a dosed additive of a non-corrosive decalcifying agent during irrigation to prevent furring at the water outflows |
| CN101254953A (en) * | 2008-03-18 | 2008-09-03 | 河南省日立信电子有限公司 | Circulating cooling water purification re-utilization automatic monitoring system |
| CN201971894U (en) * | 2011-01-27 | 2011-09-14 | 中山市宝悦嘉电子有限公司 | A PCB board sinking copper wire micro-etching potion recycling device |
| CN206720872U (en) * | 2017-05-16 | 2017-12-08 | 湖州市特种设备检测研究院 | A kind of Industrial Boiler water quality dynamic monitor device |
-
2020
- 2020-11-24 CN CN202011332996.8A patent/CN112744944A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10244634A1 (en) * | 2002-09-25 | 2004-04-08 | Hartl, Kurt, Prof. Dr. | Irrigation system, to give water sprays at time intervals, has a dosed additive of a non-corrosive decalcifying agent during irrigation to prevent furring at the water outflows |
| CN101254953A (en) * | 2008-03-18 | 2008-09-03 | 河南省日立信电子有限公司 | Circulating cooling water purification re-utilization automatic monitoring system |
| CN201971894U (en) * | 2011-01-27 | 2011-09-14 | 中山市宝悦嘉电子有限公司 | A PCB board sinking copper wire micro-etching potion recycling device |
| CN206720872U (en) * | 2017-05-16 | 2017-12-08 | 湖州市特种设备检测研究院 | A kind of Industrial Boiler water quality dynamic monitor device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115541682A (en) * | 2022-09-30 | 2022-12-30 | 西安交通大学 | An online monitoring platform for cooling towers |
| CN121107630A (en) * | 2025-09-05 | 2025-12-12 | 广东莞绿环保科技有限公司 | A smart water treatment dosing system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102445929B (en) | Circulated water system of thermal power plant | |
| US9284205B2 (en) | Apparatus providing softened makeup water for cooling system | |
| CN112744944A (en) | Automatic dosing control system and method suitable for reverse osmosis water treatment device | |
| CN102621939A (en) | Industrial boiler water quality on-line monitoring and intelligent control apparatus and method thereof | |
| CN119683765B (en) | A digital intelligent control system for sewage treatment facilities | |
| CN112125359B (en) | Automatic dosing control system and control method suitable for electric furnace water system | |
| CN115893724B (en) | A method for controlling the concentration ratio of circulating cooling water and a circulating cooling water system | |
| JP4305582B2 (en) | Cooling tower ozone sterilizer | |
| CN116534960B (en) | A method for monitoring and regulating the water quality of external cooling spray water in a converter valve cooling system | |
| CN120923074A (en) | Few humanized offshore platform domestic sewage treatment equipment | |
| CN201787683U (en) | A central air-conditioning system and its comprehensive water treatment energy-saving system | |
| US20200277208A1 (en) | Systems and methods for treating water | |
| CN202063759U (en) | Automatic ozone treatment equipment for circulating cooling water | |
| CN117572789A (en) | Full life cycle management algorithm and system for ultraviolet lamp sterilization | |
| CN217265261U (en) | High-efficiency low-energy-consumption ultraviolet disinfection tank for sewage treatment | |
| TWI703297B (en) | Sterilization system with automatic control of ozone supply | |
| JPH10235391A (en) | Two-phase anaerobic wastewater treatment equipment | |
| CN110793155B (en) | PH value automatic regulation and alarm device of closed chilled water system of power plant air conditioner | |
| CN119038643B (en) | Residual chlorine attenuation control system based on sodium hypochlorite drinking water treatment | |
| CN202257232U (en) | Circulating water system for thermal power plant | |
| CN222833658U (en) | Automatic chemical feeding device for circulating water | |
| CN110240223B (en) | A kind of control method, device and system of ultraviolet disinfection device | |
| CN223688211U (en) | A defoaming, sterilization, and scale prevention treatment device and leachate biochemical system for biological treatment tanks | |
| US20070102367A1 (en) | Apparatus and process for water conditioning | |
| JP2021094492A (en) | Water treatment device, and operation management method for water treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210504 |
|
| RJ01 | Rejection of invention patent application after publication |