CN218811031U - Reverse osmosis dosing device capable of realizing accurate feeding of scale inhibitor - Google Patents
Reverse osmosis dosing device capable of realizing accurate feeding of scale inhibitor Download PDFInfo
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- CN218811031U CN218811031U CN202222343906.6U CN202222343906U CN218811031U CN 218811031 U CN218811031 U CN 218811031U CN 202222343906 U CN202222343906 U CN 202222343906U CN 218811031 U CN218811031 U CN 218811031U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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Abstract
The utility model discloses a can realize accurate reverse osmosis charge device who throws of antisludging agent, add medicine pipeline, controller, its characterized in that including index monitoring pipeline and medicament: the index monitoring pipeline comprises a raw water inlet pipe, and the raw water inlet pipe is connected with a water inlet tank; the water outlet of the water inlet tank is connected with a water outlet pipeline, and a total alkalinity monitoring bypass, a calcium hardness monitoring bypass and a pH monitoring bypass are sequentially arranged on the water outlet pipeline; the water outlet pipeline is connected with the cartridge filter, the water outlet of the cartridge filter is connected with the booster pump, the water outlet of the booster pump is connected with the membrane water inlet pipeline, and the membrane water inlet pipeline is connected with the reverse osmosis membrane element; the medicament adds the medicine pipeline and includes that two or more than two medicaments add the medicine branch road, adds and is equipped with dosing tank, ooff valve, adds the medicine pump on the medicine branch road, adds the medicine pump exit linkage and always adds the medicine pipeline, the dosing tank is equipped with the discharge line, the utility model discloses can be according to actual real-time adjustment accurate control.
Description
Technical Field
The utility model belongs to embrane method water treatment field especially relates to a can realize accurate reverse osmosis charge device of throwing with of antisludging agent.
Background
Reverse osmosis, also known as reverse osmosis, is a membrane separation operation that uses pressure as a driving force to separate a solvent from a solution. Pressure is applied to one side of the membrane and when the pressure exceeds the osmotic pressure, the solvent will reverse permeate against the forward permeate direction. So that the feed liquid obtains solvent, namely a water producing side, on the low pressure side of the membrane, and is concentrated, namely a concentrated water side, on the high pressure side. The water source in the nature can generate the deposition of calcium salt, namely calcium scale in the concentration process, and the calcium scale can be deposited on the membrane surface after being generated, so that the membrane is polluted and blocked, the water yield is reduced, and the normal production is influenced.
In order to prevent the deposition of calcium salt, a scale inhibitor is required to be added at the reverse osmosis water inlet end, and the scale inhibitor can complex calcium ions and prevent the combination of the calcium ions and carbonate, so that the deposition of a membrane of the calcium salt is avoided, the risk of membrane fouling and blocking is reduced, and the normal water production is ensured. At present, the scale inhibitor is added in a mode of fixing the concentration of a fixed medicament, and when an incoming water source is deteriorated, a system cannot identify the water source in time, so that calcium scale deposition occurs on a membrane system, the water yield is reduced, and the cleaning cost is increased. On the other hand, even if water quality deterioration is found on site, on-site personnel do not know the performance of the scale inhibitor, the dosage of the scale inhibitor needs to be adjusted step by step or a medicament manufacturer is waited to solve the problem on site, the response time of accidents is prolonged, and the risk of membrane fouling and blocking is increased.
SUMMERY OF THE UTILITY MODEL
To the problem that prior art exists, the utility model provides a can realize that antisludging agent is accurate to be thrown reverse osmosis charge device who throws.
The utility model discloses a realize like this, a can realize accurate reverse osmosis charge device who throws of antisludging agent, add the controller of medicine pipeline and control medicament with medicine pipeline running state, its characterized in that including index monitoring pipeline: the index monitoring pipeline comprises a raw water inlet pipe, and the raw water inlet pipe is connected with a water inlet tank; the water outlet of the water inlet tank is connected with a water outlet pipeline, a total alkalinity monitoring bypass, a calcium hardness monitoring bypass and a pH monitoring bypass are sequentially arranged on the water outlet pipeline, a self-priming pump and a total alkalinity on-line analyzer are arranged on the total alkalinity monitoring bypass, the total alkalinity on-line analyzer comprises a controller in the upper half part and a test reaction area in the lower half part, a first valve, a calcium ion electrode, a first tee joint and a calcium hardness analyzer are sequentially arranged on the calcium hardness monitoring bypass, and a second valve, a pH electrode, a second tee joint and a pH detector are sequentially arranged on the pH monitoring bypass; the total alkalinity on-line analyzer, the calcium hardness analyzer and the pH detector are respectively connected with a controller;
the water outlet pipeline is connected with the cartridge filter, the water outlet of the cartridge filter is connected with the booster pump, the water outlet of the booster pump is connected with the membrane water inlet pipeline, and the membrane water inlet pipeline is connected with the reverse osmosis membrane element.
The drug feeding pipeline comprises two or more drug feeding branches, a drug feeding box, a switch valve and a drug feeding pump are arranged on the drug feeding branches, the outlet of the drug feeding pump is connected with the main drug feeding pipeline, and the drug feeding box is provided with a discharge pipeline.
Preferably, a medicament concentration monitoring branch is arranged on the membrane water inlet pipeline, and a third valve, an online fluorescent probe, a third tee joint and a fluorescent agent analyzer are sequentially arranged on the medicament concentration monitoring branch.
The controller has the functions that program identification and automatic skip can be carried out by utilizing the acquired detection values of all water quality indexes, the device can be provided with a plurality of programs, each program comprises five indexes of total alkalinity, calcium hardness, pH, proper type of scale inhibitor and dosage, the program is set by a scale inhibitor manufacturer according to the concentrations of different scale inhibitors or the water quality range which can be controlled by the type, when the water quality changes, the program can be automatically identified and skipped, simultaneously the type of the medicament and the corresponding concentration value are given, and prompt tones are sent to inform field engineers of the requirement of medicament adjustment, the engineers carry out manual reset and close prompt tones after receiving the prompt, then the corresponding medicament pumps are started and debugged according to the type and the concentration of the medicament displayed on a screen, and the debugging of the medicament pumps is carried out according to the display data of a fluorescent agent analyzer so as to calculate the concentration of the scale inhibitor.
The utility model has the advantages and technological effect:
(1) the utility model discloses the setting controller can carry out automatic identification and control program distribution according to water quality testing index data, every procedure all can give antisludging agent model and the charge amount that corresponds under the corresponding quality of water condition, and send out the suggestion of reporting to the police, the engineer can carry out the model of antisludging agent and adjust with the charge amount according to the procedure suggestion this moment, this setting of controller can prevent on the one hand because of coming water source worsens, lead to antisludging agent charge amount not up to standard or antisludging agent type number is not suitable for the membrane dirt stifled problem that appears, the membrane generally needs to carry out chemical cleaning once dirty stifled, has raised the running cost, reduce production efficiency; on the other hand, the problem of medicament waste or resource waste caused by the over-standard dosage of the scale inhibitor due to the purification of the water quality of the incoming water can be avoided, so that the setting of the program has higher economic and social benefits.
(2) The utility model discloses the quality of water that the controller can provide according to the antisludging agent producer and correspond antisludging agent model and add dose data, sets up multiple executive program, and when quality of water changes, but the program quick response and the switching to in time give the model of suitable antisludging agent and add the dose, can realize the quick response of antisludging agent adjustment, prevent stifled membrane and wasting of resources.
(3) The utility model discloses set up the medicament monitoring bypass, but the concentration of this bypass real-time detection fluorescent agent and then calculate the concentration of antisludging agent, the engineer can carry out the concentration adjustment of antisludging agent according to the antisludging agent concentration value that program controller given and fluorescent agent concentration controller display data, the ageing of avoiding artifical measuring to appear is long, the problem of inefficiency, the concentration of present most antisludging agent adopts the water sample to return antisludging agent producer to detect moreover, detection time has been increased, increase stifled membrane risk.
(4) The reagent monitoring bypass is arranged behind the security filter and the booster pump, so that the reagent can reach a uniform state after being mixed by the security filter and the pump, and the concentration of the reagent is detected to be the concentration closest to the membrane entering concentration of the reagent, thereby ensuring the accuracy of the concentration of the scale inhibitor and realizing accurate feeding.
(5) The medicament monitoring bypass can also assist in checking whether the medicament feeding pipeline leaks or not and whether the medicament is added wrongly, and if the medicament feeding pipeline leaks, the concentration data of the scale inhibitor is reduced; if the medicament is wrongly added, some antisludging agents without fluorescent components can also cause the concentration data of the antisludging agents not to be displayed.
Drawings
Fig. 1 is a control schematic diagram of the present invention.
Wherein: 1. a raw water inlet pipe 2, a water inlet tank 3, a program controller 4, a water outlet pipeline 5, a total alkalinity monitoring bypass 5-1, a self-priming pump 5-2, a total alkalinity on-line analyzer 6, a calcium hardness monitoring bypass 6-1, a first valve 6-2, a calcium ion electrode 6-3, a first tee 6-4, a calcium hardness analyzer 7, a pH monitoring bypass 7-1, a second valve 7-2, a pH electrode 7-3, a second tee 7-4, a pH detector 8, a cartridge filter 9, a booster pump 10, a membrane water inlet pipeline 11, a reverse osmosis membrane element 12, a medicament concentration monitoring bypass 12-1, a third valve 12-2, an on-line fluorescence probe 12-3, a third tee 12-4, a fluorescent agent analyzer 13, a medicament adding box 14, a switch valve 15, a medicament adding pump 16, a total medicament adding pipeline 17, a discharge pipeline 12-2, an on-line fluorescence probe 12-3, a third tee 12-4, a fluorescent agent analyzer 13, a medicament adding box 14, a switch valve 15, a medicament adding pump 16, a total medicament adding pipeline 17 and a discharge pipeline
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A reverse osmosis dosing device capable of realizing accurate dosing of scale inhibitors comprises an index monitoring pipeline, a medicament dosing pipeline and a controller for controlling the operation state of the medicament dosing pipeline, wherein the index monitoring pipeline comprises a raw water inlet pipe 1, and the raw water inlet pipe 1 is connected with a water inlet tank 2; the water outlet of the water inlet tank is connected with a water outlet pipeline 4, a total alkalinity monitoring bypass 5, a calcium hardness monitoring bypass 6 and a pH monitoring bypass 7 are sequentially arranged on the water outlet pipeline 4, a self-priming pump 5-1 and a total alkalinity on-line analyzer 5-2 are arranged on the total alkalinity monitoring bypass 5, the total alkalinity on-line analyzer belongs to the known technology, such as the model, and mainly comprises a controller of the upper half part and a test reaction area of the lower half part, a first valve 6-1, a calcium ion electrode 6-2, a first tee joint 6-3 and a calcium hardness analyzer 6-4 are sequentially arranged on the calcium hardness monitoring bypass 6, and a second valve 7-1, a pH electrode 7-2, a second tee joint 7-3 and a pH detector 7-4 are sequentially arranged on the pH monitoring bypass 7; the total alkalinity on-line analyzer 5-2, the calcium hardness analyzer 6-4 and the pH detector 7-4 are respectively connected with the controller 3;
the water outlet pipeline 4 is connected with a security filter 8, the water outlet of the security filter 8 is connected with a booster pump 9, the water outlet of the booster pump 9 is connected with a membrane water inlet pipeline 10, and the membrane water inlet pipeline 10 is connected with a reverse osmosis membrane element 11.
The medicament dosing pipeline comprises two or more medicament dosing branches, a dosing box 13, a switch valve 14 and a dosing pump 15 are sequentially arranged on each medicament dosing branch, the outlet of the dosing pump 15 is connected with a total dosing pipeline 16, and the dosing box 13 is provided with a discharge pipeline 17.
Preferably, the membrane water inlet pipeline 10 is provided with a medicament concentration monitoring branch 12, and the medicament concentration monitoring branch is sequentially provided with a third valve 12-1, an online fluorescent probe 12-2, a third tee 12-3 and a fluorescent agent analyzer 12-4.
The optimal controller (3) has the functions that the preset PLC control program can be identified and automatically skipped by using the acquired detection values of all water quality indexes, the controller can be provided with a plurality of programs, each program comprises five indexes of total alkalinity, calcium hardness, pH, proper type of scale inhibitor and dosage, the program is set by a scale inhibitor manufacturer according to the concentration of different scale inhibitors or the water quality range which can be controlled by the type, when the water quality changes, the program can automatically identify and skip, simultaneously, the type of medicament and the corresponding concentration value are given, and a prompt tone is sent to inform a field engineer of medicament adjustment, the engineer manually resets and closes the prompt tone after receiving the prompt, then, the corresponding medicament pump is started and debugged according to the type and the concentration of the medicament displayed on a screen, and the debugging of the medicament pump is operated according to the display data of a fluorescent agent analyzer so as to deduce the concentration of the scale inhibitor.
The utility model discloses the application example, to one set of reverse osmosis system, the antisludging agent producer is according to reverse osmosis water quality of water and the pretreatment condition gives the medicament model that this system corresponds at different quality of water and adds the medicine concentration. For example, for a reverse osmosis system of a certain plant, the plant sets six execution procedures, which are:
according to the data displayed by the total alkalinity on-line analyzer, the calcium hardness analyzer and the pH detector, the initial water quality of the field reverse osmosis system is 8.09mmol/l of total alkalinity, and the calcium hardness (CaCO is used) 3 Calculated) 345.44mg/l, the pH value is 8.12, the water quality accords with the first program, the program controller identifies the water quality data and automatically skips to the first program, and sends out a prompt tone, an engineer can perform manual reset after receiving the prompt tone, namely close the prompt tone, then start the corresponding medicament pump according to the medicament model 1 displayed on a screen, and debug the corresponding medicament pump according to the screen prompting medicament concentration of 1.5ppm, the medicament concentration is deduced according to the display data of a fluorescent agent analyzer, and the medicament concentration is adjusted when the deduced medicament concentration is 1.5 ppm.
Because the pretreatment process of reverse osmosis inlet water contains a softening section, the pretreatment process is in situThe softening cost needs to be saved, so that the calcium hardness in the softened effluent is increased, and further the calcium hardness in the reverse osmosis influent is increased, at the moment, the data displayed by the total alkalinity on-line analyzer, the calcium hardness analyzer and the pH detector are respectively observed to be 7.14mmol/l of total alkalinity, and the calcium hardness (as CaCO) 3 Measured) 624.15mg/l, pH value 7.53, if the water quality continues to adopt the medicament of the model 1, the scale formation of calcium carbonate can not be controlled, and finally a scale layer is formed on the concentrated water side of the reverse osmosis membrane, which causes the reduction of water yield. But this device can effectively prevent the emergence of this condition, program controller can automatic identification quality of water data after discovery quality of water changes, jump to procedure four simultaneously, and send the prompt tone, the engineer can carry out manual reset after receiving the prompt tone and close the prompt tone promptly, then carry out the start-up of corresponding medicament pump according to the medicament model 3 of screen display, and carry out the debugging of corresponding medicament pump according to the medicament concentration 3ppm of screen suggestion, then the medicament concentration adjustment finishes when calculating out the medicament concentration for 3ppm according to fluorescent agent analysis appearance data, in time and effectually avoid reverse osmosis membrane dirty stifled to appear, reverse osmosis system's normal operating has been guaranteed.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention, such as setting other programs by the program controller, increasing and decreasing the medicine feeding pipeline, adding or replacing the on-line monitoring bypass, etc., should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a can realize accurate reverse osmosis charge device of throwing of antisludging agent, includes that index monitoring pipeline and medicament add the medicine pipeline and control medicament adds the controller of medicine pipeline running state, its characterized in that:
the index monitoring pipeline comprises a raw water inlet pipe (1), and the raw water inlet pipe (1) is connected with a water inlet tank (2); the water outlet of the water inlet tank is connected with a water outlet pipeline (4), a total alkalinity monitoring bypass (5), a calcium hardness monitoring bypass (6) and a pH monitoring bypass (7) are sequentially arranged on the water outlet pipeline (4), a self-priming pump (5-1) is arranged on the total alkalinity monitoring bypass (5), a total alkalinity on-line analyzer (5-2) is arranged on the total alkalinity on-line analyzer, the total alkalinity on-line analyzer comprises a controller of the upper half part and a test reaction area of the lower half part, a first valve (6-1), a calcium ion electrode (6-2), a first tee joint (6-3) and a calcium hardness analyzer (6-4) are sequentially arranged on the calcium hardness monitoring bypass (6), and a second valve (7-1), a pH electrode (7-2), a second tee joint (7-3) and a pH detector (7-4) are sequentially arranged on the pH monitoring bypass (7); the total alkalinity on-line analyzer (5-2), the calcium hardness analyzer (6-4) and the pH detector (7-4) are respectively connected with the controller (3);
the water outlet pipeline (4) is connected with a security filter (8), the water outlet of the security filter (8) is connected with a booster pump (9), the water outlet of the booster pump (9) is connected with a membrane water inlet pipeline (10), and the membrane water inlet pipeline (10) is connected with a reverse osmosis membrane element (11).
2. The reverse osmosis dosing device capable of realizing the accurate dosing of the scale inhibitor according to claim 1 is characterized in that: the drug feeding pipeline comprises two or more drug feeding branches, a drug feeding box (13), a switch valve (14) and a drug feeding pump (15) are sequentially arranged on the drug feeding branches, the outlet of the drug feeding pump (15) is connected with a general drug feeding pipeline (16), and the drug feeding box (13) is provided with a discharge pipeline (17).
3. The reverse osmosis dosing device capable of realizing accurate feeding of the scale inhibitor according to claim 1 is characterized in that: the membrane water inlet pipeline (10) is provided with a medicament concentration monitoring branch (12), and the medicament concentration monitoring branch is sequentially provided with a third valve (12-1), an online fluorescent probe (12-2), a third tee joint (12-3) and a fluorescent agent analyzer (12-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222343906.6U CN218811031U (en) | 2022-09-02 | 2022-09-02 | Reverse osmosis dosing device capable of realizing accurate feeding of scale inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222343906.6U CN218811031U (en) | 2022-09-02 | 2022-09-02 | Reverse osmosis dosing device capable of realizing accurate feeding of scale inhibitor |
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| Publication Number | Publication Date |
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| CN218811031U true CN218811031U (en) | 2023-04-07 |
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| CN202222343906.6U Active CN218811031U (en) | 2022-09-02 | 2022-09-02 | Reverse osmosis dosing device capable of realizing accurate feeding of scale inhibitor |
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| CN (1) | CN218811031U (en) |
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- 2022-09-02 CN CN202222343906.6U patent/CN218811031U/en active Active
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