CN117110277A - Miniature softened water hardness monitoring sensor device - Google Patents
Miniature softened water hardness monitoring sensor device Download PDFInfo
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- CN117110277A CN117110277A CN202211688199.2A CN202211688199A CN117110277A CN 117110277 A CN117110277 A CN 117110277A CN 202211688199 A CN202211688199 A CN 202211688199A CN 117110277 A CN117110277 A CN 117110277A
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- AMMWFYKTZVIRFN-UHFFFAOYSA-N sodium 3-hydroxy-4-[(1-hydroxynaphthalen-2-yl)diazenyl]-7-nitronaphthalene-1-sulfonic acid Chemical compound [Na+].C1=CC=CC2=C(O)C(N=NC3=C4C=CC(=CC4=C(C=C3O)S(O)(=O)=O)[N+]([O-])=O)=CC=C21 AMMWFYKTZVIRFN-UHFFFAOYSA-N 0.000 description 1
- ORFSSYGWXNGVFB-UHFFFAOYSA-N sodium 4-amino-6-[[4-[4-[(8-amino-1-hydroxy-5,7-disulfonaphthalen-2-yl)diazenyl]-3-methoxyphenyl]-2-methoxyphenyl]diazenyl]-5-hydroxynaphthalene-1,3-disulfonic acid Chemical compound COC1=C(C=CC(=C1)C2=CC(=C(C=C2)N=NC3=C(C4=C(C=C3)C(=CC(=C4N)S(=O)(=O)O)S(=O)(=O)O)O)OC)N=NC5=C(C6=C(C=C5)C(=CC(=C6N)S(=O)(=O)O)S(=O)(=O)O)O.[Na+] ORFSSYGWXNGVFB-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
Abstract
The application discloses a miniature softened water hardness monitoring sensor device which comprises a liquid mixing cavity, an electromagnetic valve, a medicament bin, a spray head, a pair of luminous tubes and a light sensing tube. The liquid mixing cavity is a transparent fluid pipe, one end of the liquid mixing cavity is connected with an input water pipe, the other end of the liquid mixing cavity is connected with a discharge water pipe, and the liquid mixing cavity is provided with an injection hole; the outlet end of the drainage water pipe is higher than the liquid mixing cavity; the electromagnetic valve is arranged between the liquid mixing cavity and the water inlet pipe and is used for intercepting and controlling the water flow to be tested; the medicament bin is used for storing detection medicaments; the injection head is used for acquiring the detection medicament from the medicament bin and injecting the detection medicament to the liquid mixing cavity through the injection hole; the luminous tubes and the light sensing tubes are symmetrically arranged on two sides of the liquid mixing cavity, and the color change of the mixed liquid in the liquid mixing cavity is identified. Compared with the existing miniature softened water hardness detection sensor device, the application has the beneficial effects of realizing the rapid, small-volume, micro-consumption, low-cost and pulse continuous online real-time monitoring function.
Description
Technical Field
The application relates to the technical field of water quality monitoring equipment, in particular to a miniature softened water hardness monitoring sensor device.
Background
The currently known water hardness testing instrument of the softened water treatment equipment consists of a sensor device and an instrument, wherein the sensor device generally adopts a method for taking out a water sample and adding medicine to a pump body (such as application publication number CN107966406A, the name of which is an application application of automatic water quality testing equipment), and the method has the following three defects: firstly, the detection period is too long, and the time is too bad in timeliness of the detection result in a period of several minutes to more than ten minutes after the processes of container flushing, water sampling, medicament adding, stirring, detection and pollution discharge are needed; secondly, the device has overlarge volume, and a peristaltic pump or a plunger pump, a reaction chamber, a stirring mechanism, a switching valve and the like for generating titration and dosing are needed, so that the device has high cost; third, the titration of the excessive consumption of medication requires frequent replacement of the cartridge by the user. These defects make the whole device not suitable for on-line real-time monitoring well, and the lagged detection result is difficult to ensure the accurate qualification of the water quality of the outlet water of the equipment.
Disclosure of Invention
The application aims to provide a miniature softened water hardness monitoring sensor device which is miniature, low in manufacturing cost and use cost and high in timeliness.
In order to achieve the above purpose, the present application adopts the following technical scheme:
a miniature softened water hardness monitoring sensor device comprising:
the liquid mixing cavity is a transparent fluid pipe, one end of the liquid mixing cavity is connected with an input water pipe, the other end of the liquid mixing cavity is connected with a discharge water pipe, and the liquid mixing cavity is provided with an injection hole; the outlet end of the drainage water pipe is higher than the liquid mixing cavity;
the electromagnetic valve is arranged between the liquid mixing cavity and the water inlet pipe and is used for intercepting and controlling the water flow to be tested;
the medicament bin is used for storing detection medicaments;
an injection head for acquiring the detection reagent from the reagent cartridge and injecting the detection reagent to the liquid mixing chamber through the injection hole;
the luminous tubes and the light sensing tubes are symmetrically arranged on two sides of the liquid mixing cavity, and the color change of the mixed liquid in the liquid mixing cavity is identified.
Further, the ejection head is a piezoelectric crystal ejection device, and the ejection amount of the detection agent is controlled by an electric pulse supplied to the piezoelectric crystal.
Further, along the water flow direction, the injection hole is arranged at the front end of the liquid mixing cavity, and the pair of luminous tubes and the photosensitive tube are arranged at the rear end of the liquid mixing cavity.
Further, the device also comprises an inductive proximity switch and a magnetic core floater, wherein the inductive proximity switch is arranged at the bottom of the medicament bin, the magnetic core floater is arranged in the medicament bin, and when the magnetic core floater falls at the bottom of the medicament bin, the inductive proximity switch is triggered to output a signal.
Further, the bin cover of the medicament bin is provided with an air hole communicated with the outside.
Further, the integrated body is provided with a hole seat for installing the luminous tube, the light sensing tube and the jet head, and a light emitting hole corresponding to the luminous tube and a light picking hole corresponding to the light sensing tube.
Further, the liquid mixing cavity is a transparent hose, the integrated body comprises locking covers distributed at two ends of the integrated body, a taper pipe connected with the transparent hose is formed in the center of the locking covers, and the locking covers are screwed with the integrated body.
Further, the medicament bin comprises a medicament bag, the medicament bag is made of plastic films, tensioning belts are arranged on two sides of the top end of the medicament bag, and the medicament bag is pressed through a bin cover of the medicament bin.
Further, the intelligent water treatment device also comprises a PLC programmable controller, wherein the PLC programmable controller is used for receiving instructions of the water treatment device and controlling the electromagnetic valve, the jet head, the luminous tube and the photosensitive tube.
After the technical scheme is adopted, compared with the background technology, the application has the following advantages:
compared with the existing miniature softened water hardness detection sensor device, the application has the advantages that the rapid, small-volume, micro-consumption, low-cost and pulse continuous online real-time monitoring function is realized, and three defects of the existing softened water hardness detection sensor device of the softened water treatment equipment are effectively avoided: firstly, the detection period is too long to play a role in real-time monitoring; secondly, the device has overlarge volume and overlarge manufacturing cost; thirdly, the dosage is too high and the cartridge needs to be replaced frequently and at high cost.
Drawings
FIG. 1 is a schematic diagram of the structural principle of the present application;
fig. 2 is a structural analysis diagram of the present application.
Reference numerals illustrate:
1. the device comprises a monitoring chamber, an input water pipe, a connecting water pipe, a discharge water pipe, a solenoid valve, a spray head, a medicament bin, a proximity switch, a light emitting tube, a light sensing tube, a controller, an integrated body, a mixing cavity, a locking cover, a light emitting hole, a light collecting hole, a fastening cover, a spray hole, a sealing gasket, a spray pipe, a compacting cover, a medicament bag, a magnetic core floater, a tensioning belt, a bin cover, a gas inlet and an electric control lead.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application. In addition, it should be noted that:
the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not denote or imply that the apparatus or elements of the present application must have a particular orientation, and thus should not be construed as limiting the application.
When an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the application will be understood by those skilled in the art according to the specific circumstances.
Examples
Referring to fig. 1 and 2, the application discloses a miniature softened water hardness monitoring sensor device, which comprises a monitoring chamber 1, an input water pipe 2, a connecting water pipe 3, a discharge water pipe 4, an electromagnetic valve 5, an injection head 6, a medicament bin 7, a luminous tube 9, a photosensitive tube 10 and a controller 11.
Wherein, input water pipe 2 is used for obtaining the water sample input from the water source, and the drain pipe 4 is directly let through the atmosphere and is used for the discharge of water sample. The monitoring chamber 1 is provided with a liquid mixing cavity 13, the liquid mixing cavity 13 is a transparent fluid pipe, one end of the liquid mixing cavity 13 is connected with the input water pipe 2, and the other end of the liquid mixing cavity is connected with the discharge water pipe 4, in other words, the liquid mixing cavity 13 is used as a flow passage pipe, and an overflow water sample is taken between the input water pipe 2 and the discharge water pipe 4. The position of the water discharge pipe 4 is higher than that of the monitoring chamber 1 so as to prevent the water sample to be tested from losing due to gravity.
The liquid mixing chamber 13 is provided with an injection hole 18 for detecting injection of the medicine.
The electromagnetic valve 5 is an overcurrent type electromagnetic valve, the application is not particularly limited to the model, and the electromagnetic valve is selected based on volume miniaturization, cost and reliability. The water flow control device is arranged between the liquid mixing cavity 13 and the input water pipe 2 and is used for controlling the water flow to be tested and ensuring that the injection of the injection head 6 is ensured not to be subjected to the resistance of the water supply pressure and is smoothly injected. In this embodiment, one end of the device is connected with the water inlet pipe 2 through the connecting water pipe 3, and the other end is directly connected with the monitoring chamber 1.
A medicine bin 7 for storing a detection medicine; the injection head 6 is used for extracting the detection medicine from the medicine bin 7 and injecting the detection medicine to the liquid mixing cavity 13 through the injection hole 18. The pair of luminous tubes 9 and the photosensitive tube 10 are symmetrically arranged at two sides of the liquid mixing cavity 1 to identify the color change of the mixed liquid in the liquid mixing cavity 1.
The working principle of the application is as follows: through the excessive water flowing in the monitoring chamber 1, when monitoring is needed, the injection head 6 is used for injecting the detection medicament, the detection medicament is mixed under the self-flushing action of water flow, then the injection head 6 and the electromagnetic valve 5 are closed simultaneously to ensure the necessary time for finishing the chemical reaction of the medicament, at the moment, the excessive water flowing in the monitoring chamber 1 becomes a water sample, and then the color change of the mixed liquid in the liquid mixing cavity 13 can be collected through the luminous tube 9 and the photosensitive tube 10, so that whether the hardness of the softened water exceeds the standard can be judged.
In a specific detection procedure, the present application performs the following operations:
(1) Opening an electromagnetic valve to open a detection process, wherein the water sample to be detected flows through the electromagnetic valve for about 1 second to pass through the static water flow in the pipeline, so as to obtain a live water flow;
(2) The medicament jet is turned on for about 0.2 seconds;
(3) Simultaneously closing the medicament injection and the solenoid valve, waiting about 2.5 seconds to fully react the mixed liquid chemistry;
(4) Starting the luminous tube and the photosensitive tube for detection for about 0.1 second, and transmitting a sensing signal by the photosensitive tube;
(5) The electromagnetic valve is opened for about 1 second, the detection waste liquid is discharged, the cleaning liquid mixing cavity is flushed, and the next detection is started.
Therefore, continuous pulse detection is realized within a certain time period, the time spent for each detection is less than 4 seconds, and at least 15 times of detection can be realized within 1 minute, so that the function of online real-time monitoring is better realized.
It will be appreciated that by adding the detection reagent to water to cause a change in the colour of the water, and by the colour change in turn determining the hardness of the water, this is the prior art (e.g. chrome black T indicator, when titrated to the end point, the colour of the aqueous sample solution changes from mauve to blue and the colour change is quite distinct and therefore relatively easy to identify; e.g. calcium indicator, when titrated to the end point, the aqueous sample solution changes from mauve to pure blue) and the application will not be repeated. Based on the color change principle, the application replaces manual color identification by the luminous tube 9 and the photosensitive tube 10, thereby identifying the hardness of water quality. The principle of identifying color change is that the transmittance of liquid with different colors is different, light is emitted through the luminous tube 9, and the light sensing tube 10 senses the light, so that the transmittance of the liquid and the color can be sensed. And (3) comparing the color of the actual water sample with the color of the calibrated water sample by calibrating the color of the water sample with the upper limit of the hardness, and identifying whether the hardness of the water sample exceeds a set value.
The application does not limit the specific model of the luminous tube 9 and the photosensitive tube 10, and can only identify the transparency of the liquid color, such as: TCS34725, light-sensing tubes of the above colors, and LCD light-emitting tube lamps.
The volume of the mixing chamber of the present application can be flexibly set based on the principle of saving the detection reagent, and in one embodiment of the present application, the mixing chamber has an inner diameter of 6mm and a length of 70mm, and the volume is about 2 ml, and the quantity of the reagent injected each time is about 1 microliter.
The application overcomes a plurality of defects existing in the traditional sampling type detection by adopting the online overcurrent type detection to replace the traditional sampling type detection. The application uses a thinner transparent fluid pipe as an input pipeline of a water sample to be detected, one section of the fluid pipe is used as a detected mixed liquid cavity, a miniature electromagnetic valve is arranged at the front end of the mixed liquid cavity to realize cut-off detection, a pair of luminous tubes 9 and photosensitive tubes 10 are arranged at the downstream of the mixed liquid cavity, and the change of the color of the mixed liquid is reflected by the perceived transmittance, so that whether the hardness of softened water exceeds the standard is judged. Three defects of a water hardness detection sensor device of the prior softened water treatment equipment are effectively avoided: firstly, the detection period is too long to play a role in real-time monitoring; secondly, the device has overlarge volume and overlarge manufacturing cost; thirdly, the dosage is too high and the cartridge needs to be replaced frequently and at high cost.
In the application, the jet head 6 is a piezoelectric crystal jet device, the piezoelectric crystal jet device is a mature liquid jet device, the piezoelectric crystal jet device is widely applied to the head of an ink jet printer, and has the advantages of small volume and accurate jet quantity.
Thus, the piezoelectric crystal micro-injection device is adopted to replace the traditional pump body dosing device: an injection hole 18 for detecting the medicament is arranged at the upstream of the liquid mixing cavity 13, the injected medicament quantity is precisely controlled by the quantity of injection driving pulses, the injected medicament is flushed to the downstream of the liquid mixing cavity 13 by the measured water flow of the river, and the medicament and the measured water sample are fully mixed in the flushing process.
In the present application, the spray hole 18 is provided at the front end of the liquid mixing chamber along the water flow direction, and the pair of light emitting tubes 9 and the light receiving tube 10 are provided at the rear end of the liquid mixing chamber 13. So set up, luminotron 9 and sensitization tube 10 have certain distance with jet orifice 18, guarantee medicament and survey water sample have fully miscible space and time.
For monitoring the medicament remaining in the medicament cartridge 7, the application further comprises an inductive proximity switch 8 and a magnetic core float 13. Specifically, the proximity switch 8 is provided at the bottom of the medicine cartridge, and the core float 23 is placed in the medicine cartridge 7. Thus, when the detection reagent is contained in the reagent cartridge 7, the core float 23 floats on the liquid surface of the detection reagent; when the detected medicament tends to be used up, the magnetic core floater 23 falls to the bottom of the medicament bin 7, and the inductive proximity switch 6 is triggered to output a signal to remind that the detected medicament is insufficient. In the setting of the application, after the alarm signal is sent, the residual medicament in the pipeline is enough for monitoring the consumption of 2 days.
To facilitate the addition of the medicament, the medicament cartridge 7 comprises a medicament bag 22, wherein the medicament bag 22 is made of plastic films, the two sides of the top end of the medicament bag 22 are provided with tensioning belts 24, and the tensioning belts 24 are buckled and pressed by a cartridge cover 25 of the medicament cartridge 7 so as to prevent the top of the bag from collapsing. In this case, the core float 23 prevents the medicament bag 22 from falling into the bottom of the medicament cartridge 7 as the medicament is consumed, and the core in the core float 23 will actuate the proximity switch 8, thereby giving an alarm signal for replacement of the medicament bag.
An air inlet hole 26 is reserved on the medicament bin cover 25 to avoid that siphon negative pressure is generated in the medicament consumption process to influence the discharge of the medicament.
The integrated body 12 is used as the structural framework of the application. Specifically, the mixing cavity 13 is a section of transparent fluid hose, the center of the locking cover 14 forms a taper pipe connected with the transparent hose, and the mixing cavity 13 is screwed in the integrated body 12 by the locking cover 14. The luminous tube 9 and the photosensitive tube 10 are screwed in the integrated body 12 by a fastening cover 17 filled with adhesive, and light rays of the luminous tube 9 and the photosensitive tube are transmitted through the light emitting holes 15 and the light picking holes 16. The injection tube 20 of the medicine injection head 6 is communicated with the liquid mixing cavity 13 by adopting a spiral compression mode of a compression cover 21, and the compressed soft rubber sealing gasket 19 plays a role in preventing medicine leakage. The injection head 6 is connected with the injection pipe 20 in a hose plug mode; the medicine bag 22 is loaded into the medicine compartment 7, and the medicine outlet is a section of hose, which is connected with the injection head 6 by a plug-in hose, so as to facilitate replacement of the exhausted medicine bag 22.
In the application, the integrated body 12 is molded by engineering plastics, the input water pipe 2, the connecting water pipe 3 and the discharging water pipe 4 are all made by common plastic hoses, the medicament bin 7 is molded by common plastics, and the outer side of the bottom of the medicament bin is connected with the proximity switch 8 by gluing and the like.
In the present application, the PLC programmable controller 11 is used as a controller, and the elements are controlled by the electric control lead 27. The PLC 11 is used for receiving instructions of the water treatment equipment, controlling the operation of the electromagnetic valve 5, the spray head 6, the luminous tube 9 and the photosensitive tube 10, and receiving output signals of the proximity switch 8.
The present application is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present application are intended to be included in the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims (9)
1. Miniature softened water hardness monitoring sensor device, characterized in that it comprises:
the liquid mixing cavity is a transparent fluid pipe, one end of the liquid mixing cavity is connected with an input water pipe, the other end of the liquid mixing cavity is connected with a discharge water pipe, and the liquid mixing cavity is provided with an injection hole; the outlet end of the drainage water pipe is higher than the liquid mixing cavity;
the electromagnetic valve is arranged between the liquid mixing cavity and the water inlet pipe and is used for intercepting and controlling the water flow to be tested;
the medicament bin is used for storing detection medicaments;
an injection head for acquiring the detection reagent from the reagent cartridge and injecting the detection reagent to the liquid mixing chamber through the injection hole;
the luminous tubes and the light sensing tubes are symmetrically arranged on two sides of the liquid mixing cavity, and the color change of the mixed liquid in the liquid mixing cavity is identified.
2. A miniature softened water hardness monitoring sensor device in accordance with claim 1, wherein:
the ejection head is a piezoelectric crystal ejection device, and the ejection amount of the medicine is detected by the electric pulse number control given to the piezoelectric crystal.
3. A miniature softened water hardness monitoring sensor device in accordance with claim 1, wherein:
along the water flow direction, the jet hole is arranged at the front end of the liquid mixing cavity, and the pair of luminous tubes and the photosensitive tube are arranged at the rear end of the liquid mixing cavity.
4. A miniature softened water hardness monitoring sensor device in accordance with claim 1, wherein:
the magnetic core floater is arranged in the medicament bin, and when the magnetic core floater falls at the bottom of the medicament bin, the magnetic core floater triggers the inductive proximity switch to output signals.
5. A miniature softened water hardness monitoring sensor device in accordance with claim 1, wherein: and an air hole communicated with the outside is arranged on the bin cover of the medicament bin.
6. A miniature softened water hardness monitoring sensor device in accordance with claim 1, wherein: the liquid mixing cavity is inserted into the integrated body, and the integrated body is provided with a hole seat for installing the luminous tube, the light sensing tube and the jet head, and a light emitting hole corresponding to the luminous tube and a light picking hole corresponding to the light sensing tube.
7. A miniature softened water hardness monitoring sensor device in accordance with claim 6, wherein: the liquid mixing cavity is a transparent hose, the integrated body comprises locking covers distributed at two ends of the integrated body, a taper pipe connected with the transparent hose is formed in the center of each locking cover, and the locking covers are screwed with the integrated body.
8. A miniature softened water hardness monitoring sensor device in accordance with claim 1, wherein:
the medicament bin comprises a medicament bag, the medicament bag is made of plastic films, tensioning belts are arranged on two sides of the top end of the medicament bag, and the medicament bag is pressed through a bin cover of the medicament bin.
9. A miniature softened water hardness monitoring sensor device in accordance with claim 1, wherein:
the water treatment device also comprises a PLC programmable controller, wherein the PLC programmable controller is used for receiving the instruction of the water treatment device and controlling the electromagnetic valve, the jet head, the luminous tube and the photosensitive tube.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022108706205 | 2022-07-22 | ||
| CN202210870620 | 2022-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117110277A true CN117110277A (en) | 2023-11-24 |
Family
ID=88797160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211688199.2A Pending CN117110277A (en) | 2022-07-22 | 2022-12-27 | Miniature softened water hardness monitoring sensor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117110277A (en) |
-
2022
- 2022-12-27 CN CN202211688199.2A patent/CN117110277A/en active Pending
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