CN204360110U - Counter-infiltration system antisludging agent Intelligent adding control device - Google Patents
Counter-infiltration system antisludging agent Intelligent adding control device Download PDFInfo
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- CN204360110U CN204360110U CN201520056480.3U CN201520056480U CN204360110U CN 204360110 U CN204360110 U CN 204360110U CN 201520056480 U CN201520056480 U CN 201520056480U CN 204360110 U CN204360110 U CN 204360110U
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- antisludging agent
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Abstract
The utility model relates to the technical field of water supply system control device, particularly relate to a kind of counter-infiltration system antisludging agent Intelligent adding control device, the counter-infiltration system antisludging agent Intelligent adding control device that the utility model provides, online turbidimeter is utilized whether to monitor the formation of scale forming matter in real time when can be implemented in the change of water quality of the feedwater of counter-infiltration system, thus control the addition of antisludging agent, realize the function that on-line continuous accurately controls antisludging agent addition; Comprise antisludging agent placing box, antisludging agent dosing pump, water inlet pipe, dense water pipe, turbidity detector, controller and mixer; Water inlet pipe is communicated with antisludging agent dosing pump, and water inlet pipe is all communicated with the water inlet end of mixer with dense water pipe, and turbidity detector, antisludging agent dosing pump and mixer are all electrically connected with controller; Turbidity detector contrasts according to water turbidity in mixer, and transfers to by comparing result the speed control that controller carries out antisludging agent dosing pump and mixer.
Description
Technical field
The utility model relates to the technical field of water supply system control device, particularly relates to a kind of counter-infiltration system antisludging agent Intelligent adding control device.
Background technology
As everyone knows, counter-infiltration, also known as reverse osmosis, be a kind of is expulsive force with pressure differential, isolates the membrane separating method close to pure water from aqueous solution.Apply pressure to the feed liquid of film side, when pressure exceedes its osmotic pressure, water can make inverse osmosis against the direction of naturally osmotic.Thus the low-pressure side of film obtain through water, i.e. clear liquid; High-pressure side obtains the solution concentrated, i.e. dope.Counter-infiltration film used, can various inorganic ions, colloidal material and large molecule solute in trap water also known as RO film, thus obtains the water of approximate pure water.Because reverse osmosis process is simple, energy consumption is low, is developed rapidly over nearly 20 years.Usually, counter-infiltration system comprises feedwater pre-processing device, high-pressure pump, cartridge filter, and reverse osmosis membrane group unit and current are through the respective line of system.Counter-infiltration system is widely used in the preparation such as pure water, distilled water; The pure water preparation of the industry water such as medicine, electronics; Chemical process concentrated, be separated, purify and water distribution preparation; Boiler feedwater desalination; Seawater, brackish water desalination; Industry water and the wastewater treatments such as papermaking, plating, printing and dyeing.But counter-infiltration is in operation, reverse osmosis membrane surface is very easily subject to the pollution of scale deposition thing because cycles of concentration rises, as at film Surface Creation CaCO3, Ca3 (PO4) 2, CaSO4, BaSO4, SrSO4, metal oxide, the sediments such as silicate compound, affect water normal through reverse osmosis membrane, cause counter-infiltration system normally not run, need all cleanings frequently, serious also can cause scrapping of reverse osmosis membrane.For avoiding above problem, counter-infiltration system, before feedwater enters reverse osmosis membrane group unit, adds the antisludging agent of doses, to ensure the normal operation of reverse osmosis membrane in feedwater.In prior art, following two kinds of control methods are adopted usually to the control of scale inhibitor dosing: 1, the frequency of dividing the recommended value of broken number certificate and antisludging agent supplier to adopt artificial setting volume pump according to specific water quality and stroke arrange dosage, but its dosage can not adjust with the fluctuation of its influent quality, its effect can not ensure, this situation in wastewater treatment normal find because waste water quality change greatly and antisludging agent addition has little time adjustment and reverse osmosis membrane is polluted and needs all cleanings of frequency, in order to avoid adding of the many antisludging agents of this problem adopts excessive adding, this causes the rising of operating cost, excessive antisludging agent also can affect water production rate by polluted membrane, 2, calculated by frequently all test analysis reverse osmosis feedwater intermediate ion concentration and controlled dosage, the method needs a large amount of manpower and time can not immediate feedback.Need specialized laboratory to support simultaneously, be difficult to implement; In a word, the adding concentration and must within the specific limits, when dosage is higher than target dosage, reverse osmosis membrane can be caused to occur organic deposition of antisludging agent, when dosage is lower than target dosage, reverse osmosis membrane surface has the problem of fouling.The patent No. 200920150346.4 scale inhibitor feeding device, be utilize anti-seepage membrane to run pressure reduction to control scale inhibitor dosing, because the ion concentration change of feed water by reverse osmosis also can cause pressure reduction to change, so this method imperfection, and the patent No. 201020661498.3 scale inhibitor dosing control device of reverse osmosis system, though adopt fluorescent agent and online fluorescent instrument to confirm, dosage can not add dosage to change of water quality adjustment; Up to the present, to water change of water quality, the domestic system also not having effective on-line monitoring and control that reverse osmosis membrane antisludging agent adds concentration, thus cause the various problems of reverse osmosis membrane.
Utility model content
For above-mentioned prior art and problem, the utility model provides a kind of counter-infiltration system antisludging agent Intelligent adding control device, online turbidimeter is utilized whether to monitor the formation of scale forming matter in real time when can be implemented in the change of water quality of the feedwater of counter-infiltration system, thus control the addition of antisludging agent, realize the function that on-line continuous accurately controls antisludging agent addition.
Counter-infiltration system antisludging agent Intelligent adding control device of the present utility model, comprises antisludging agent placing box, antisludging agent dosing pump, water inlet pipe, dense water pipe, turbidity detector, controller and mixer; Described antisludging agent dosing pump is communicated with antisludging agent placing box, described water inlet pipe is communicated with antisludging agent dosing pump, described water inlet pipe is all communicated with the water inlet end of mixer with dense water pipe, described turbidity detector is communicated with the output terminal of mixer, and described turbidity detector, antisludging agent dosing pump and mixer are all electrically connected with controller; Described turbidity detector contrasts according to water turbidity in mixer, and transfers to by comparing result the speed control that controller carries out antisludging agent dosing pump and mixer.
Counter-infiltration system antisludging agent Intelligent adding control device of the present utility model, described controller is PID controller.
Counter-infiltration system antisludging agent Intelligent adding control device of the present utility model, described mixer is T-valve.
Compared with prior art the beneficial effects of the utility model are: by above-mentioned setting, effectively can avoid the membrane fouling and cleaning immediately do not caused because of antisludging agent during change of water quality adjustment, save the effect of scale inhibitor dosing amount and operating cost simultaneously.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, counter-infiltration system antisludging agent Intelligent adding control device of the present utility model, comprises antisludging agent placing box 1, antisludging agent dosing pump 2, water inlet pipe 3, dense water pipe 4, turbidity detector 5, controller 6 and mixer 7; Antisludging agent dosing pump is communicated with antisludging agent placing box, water inlet pipe is communicated with antisludging agent dosing pump, water inlet pipe is all communicated with the water inlet end of mixer with dense water pipe, and turbidity detector is communicated with the output terminal of mixer, and turbidity detector, antisludging agent dosing pump and mixer are all electrically connected with controller; Turbidity detector contrasts according to water turbidity in mixer, and transfers to by comparing result the speed control that controller carries out antisludging agent dosing pump and mixer; By above-mentioned setting, effectively can avoid the membrane fouling and cleaning immediately do not caused because of antisludging agent during change of water quality adjustment, save the effect of scale inhibitor dosing amount and operating cost simultaneously.
Counter-infiltration system antisludging agent Intelligent adding control device of the present utility model, controller is PID controller.
Counter-infiltration system antisludging agent Intelligent adding control device of the present utility model, mixer is T-valve.
Counter-infiltration system antisludging agent Intelligent adding control device of the present utility model, by using a kind of turbidity change giving a farewell dinner turbidimeter measurement reverse osmosis membrane water inlet and dense water, when the turbidity ratio of dense water and water inlet is more than a setting value, namely represent in concentrate and have the type of scale forming matter to become, now namely PID controller starts the output slowly increasing antisludging agent dosing pump, when the turbidity of this dense water and water inlet is than low what setting value, represent scale formation not obvious, now namely PID controller starts the output slowly reducing antisludging agent dosing pump, this dense water is relevant with the cycles of concentration of reverse osmosis membrane with the turbidity ratio of water inlet, usually this multiple upper and lower between selected, if when the clear liquid of reverse osmosis membrane reaches 75% of its feed liquor, its cycles of concentration is 4 times, now turbidity ratio can set between 4+/-1, when this turbidity ratio exceed or low what time, PID controller slowly rises by the operating frequency of volume pump or declines, to control or to maintain scale inhibitor dosing amount, PID controller controls the open frequency of automatic tee valve simultaneously, need the time to obtain by the monitoring of what turbidity and stablize data, generally within every 3 to 5 minutes, once switch, calculate turbidity than time usually need not switching the rejection of data of latter first minute, because there is the uncertainty that pipeline pollutes.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (3)
1. a counter-infiltration system antisludging agent Intelligent adding control device, is characterized in that, comprises antisludging agent placing box, antisludging agent dosing pump, water inlet pipe, dense water pipe, turbidity detector, controller and mixer; Described antisludging agent dosing pump is communicated with antisludging agent placing box, described water inlet pipe is communicated with antisludging agent dosing pump, described water inlet pipe is all communicated with the water inlet end of mixer with dense water pipe, described turbidity detector is communicated with the output terminal of mixer, and described turbidity detector, antisludging agent dosing pump and mixer are all electrically connected with controller; Described turbidity detector contrasts according to water turbidity in mixer, and transfers to by comparing result the speed control that controller carries out antisludging agent dosing pump and mixer.
2. counter-infiltration system antisludging agent Intelligent adding control device as claimed in claim 1, it is characterized in that, described controller is PID controller.
3. counter-infiltration system antisludging agent Intelligent adding control device as claimed in claim 2, it is characterized in that, described mixer is T-valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520056480.3U CN204360110U (en) | 2015-01-27 | 2015-01-27 | Counter-infiltration system antisludging agent Intelligent adding control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520056480.3U CN204360110U (en) | 2015-01-27 | 2015-01-27 | Counter-infiltration system antisludging agent Intelligent adding control device |
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| Publication Number | Publication Date |
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| CN204360110U true CN204360110U (en) | 2015-05-27 |
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| CN201520056480.3U Expired - Fee Related CN204360110U (en) | 2015-01-27 | 2015-01-27 | Counter-infiltration system antisludging agent Intelligent adding control device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108529764A (en) * | 2018-06-04 | 2018-09-14 | 煤科集团沈阳研究院有限公司 | A kind of on-line automatic scale inhibition system of coal mine movable water ring vacuum pump |
| 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 |
| CN110652883A (en) * | 2019-09-25 | 2020-01-07 | 金科环境股份有限公司 | Safety regulation and control system and method for adding reverse osmosis scale inhibitor |
| CN113272045A (en) * | 2019-01-28 | 2021-08-17 | 栗田工业株式会社 | Chemical injection control method |
| CN114259874A (en) * | 2021-12-29 | 2022-04-01 | 贵州师范学院 | Reverse osmosis water treatment automatic control system |
| US11759752B2 (en) | 2018-12-21 | 2023-09-19 | Ecolab Usa Inc. | Quick tracer injection for monitoring osmosis membrane integrity |
-
2015
- 2015-01-27 CN CN201520056480.3U patent/CN204360110U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108529764A (en) * | 2018-06-04 | 2018-09-14 | 煤科集团沈阳研究院有限公司 | A kind of on-line automatic scale inhibition system of coal mine movable water ring vacuum pump |
| US11759752B2 (en) | 2018-12-21 | 2023-09-19 | Ecolab Usa Inc. | Quick tracer injection for monitoring osmosis membrane integrity |
| TWI826616B (en) * | 2018-12-21 | 2023-12-21 | 美商藝康美國公司 | Method for monitoring an osmosis membrane separation process and osmosis membrane separation system |
| CN113272045A (en) * | 2019-01-28 | 2021-08-17 | 栗田工业株式会社 | Chemical injection control method |
| CN113272045B (en) * | 2019-01-28 | 2024-04-05 | 栗田工业株式会社 | Liquid medicine injection control method |
| CN110652883A (en) * | 2019-09-25 | 2020-01-07 | 金科环境股份有限公司 | Safety regulation and control system and method for adding reverse osmosis scale inhibitor |
| CN114259874A (en) * | 2021-12-29 | 2022-04-01 | 贵州师范学院 | Reverse osmosis water treatment automatic control system |
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