CN112798533A - Multi-factor water quality monitor and multi-factor water quality monitoring method - Google Patents
Multi-factor water quality monitor and multi-factor water quality monitoring method Download PDFInfo
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- CN112798533A CN112798533A CN202110176846.0A CN202110176846A CN112798533A CN 112798533 A CN112798533 A CN 112798533A CN 202110176846 A CN202110176846 A CN 202110176846A CN 112798533 A CN112798533 A CN 112798533A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 95
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- 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
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- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
Abstract
The invention provides a multi-factor water quality monitor and a multi-factor water quality monitoring method, wherein the monitor comprises the following components: the reaction module comprises a plurality of reaction units, and the reaction units are used for acquiring the corresponding water quality parameter liquid to be detected; wherein, a water sample to be detected flows into the reaction unit to generate a corresponding water quality parameter liquid to be detected; the measuring module, the reaction unit all connect measuring module, and measuring module is used for measuring the concentration of water quality parameter. Therefore, the modularized design idea is applied, the reaction process and the measurement process are separated, different reaction units can be selected to be combined and installed in a user-defined mode in the process of testing different water quality parameter combinations, and the different reaction units can be independently carried out and can also be parallel. Therefore, the water quality monitor has the advantages of high integration level, small occupied space and lower construction cost.
Description
Technical Field
The invention relates to a water quality analysis technology, in particular to a multi-factor water quality monitor and a multi-factor water quality monitoring method.
Background
In recent years, with increasingly severe water environment in China, the water environment is more and more emphasized by the nation. The requirements for water quality on-line monitoring devices and station rooms are remarkably expanded all over the country, and various water quality monitoring instruments are in the market.
However, the mainstream water quality monitors in the market at present have various defects and deficiencies such as single type, and a conventional water quality monitor can only monitor one water quality parameter, and if the comprehensive control of the water quality condition is to be realized, each factor needs to be provided with a corresponding detection instrument, so that high requirements on the area of a station room, the construction cost and the like are provided.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a multi-factor water quality monitor and a multi-factor water quality monitoring method, which can monitor various factors of water pollution.
In order to solve the technical problems, the invention adopts the technical scheme that:
the reaction module comprises a plurality of reaction units, and the reaction units are used for acquiring corresponding water quality parameter liquid to be detected; wherein, a water sample to be detected flows into the reaction unit to generate a corresponding water quality parameter liquid to be detected;
the reaction units are connected with the measuring module, and the measuring module is used for measuring the concentration of the water quality parameter.
Specifically, the reaction unit includes:
the plunger pump is used for controlling the water sample to be detected to enter the corresponding digestion tank and discharging the liquid to be detected of the water quality parameters after reaction;
and the digestion pool is used for mixing the water quality parameters and the corresponding reaction reagents to generate the liquid to be detected with the corresponding water quality parameters.
One end of the digestion tank is provided with a first high-pressure valve, and the other end of the digestion tank is provided with a second high-pressure valve;
wherein the inflow and outflow of the digestion tank is controlled by the first high pressure valve when the second high pressure valve is closed;
when the first high-pressure valve and the second high-pressure valve are both opened, the liquid to be measured for the water quality parameter flows out of the digestion tank.
Furthermore, the reaction unit further comprises a first multi-channel switching valve and a plurality of liquid storage subunits, and the first multi-channel switching valve is connected with the first high-pressure valve, the liquid storage subunits and the measurement module;
the liquid storage subunit is used for storing one or more of a water sample to be detected, a reaction reagent, distilled water, a zero standard, a standard liquid and a waste liquid.
The above-mentioned measuring module includes:
the measuring pool is connected with the reaction module and used for containing the liquid to be measured of the water quality parameters;
and the measuring unit faces the measuring tank and is used for obtaining the concentration of the water quality parameter through the liquid to be measured of the water quality parameter in the measuring tank.
Wherein the measurement unit includes:
the light source is used for emitting broadband detection light to the liquid to be detected of the water quality parameter in the measuring tank;
the optical fiber probe is used for receiving a reflected signal of the liquid to be detected of the water quality parameter;
and the spectrometer module is used for analyzing the concentration of the water quality parameter according to the reflection signal.
Specifically, the measuring cell is provided with a second multi-channel switching valve, and the second multi-channel switching valve is used for gating the corresponding reaction unit.
The multi-factor water quality monitor further comprises: a master control module and a control subunit of the reaction unit;
the master control module is used for controlling the control subunit and the spectrometer module;
and the control subunit is used for controlling the corresponding plunger pump and the first multi-channel switching valve.
The plunger pump is a micro-upgrading plunger pump.
The second aspect of the application provides a multi-factor water quality monitoring method, which applies a multi-factor water quality monitor, and comprises the following steps:
responding to the detection instruction of the ith water quality parameter, and generating the ith water quality parameter to-be-detected liquid through an ith reaction unit;
analyzing the concentration of the ith water quality parameter in the water sample to be detected according to the ith water quality parameter to-be-detected liquid;
pumping out the liquid to be measured of the ith water quality parameter, and cleaning a digestion tank in the measurement module;
wherein i is a positive integer.
The invention has the beneficial effects that: the modularized design idea is applied, the reaction process and the measurement process are separated, different reaction units can be selected to be combined and installed in a user-defined mode in the process of testing different water quality parameter combinations, and the different reaction units can be independently carried out and can also be in parallel. Different water quality parameters are measured through different reaction units, so that the generation of a liquid to be measured of the water quality parameters is not influenced; and because the reaction process and the measurement process are separated, the common measurement module can obtain accurate measurement results. Therefore, the water quality monitor has the characteristics of high integration degree, small occupied space and lower construction cost.
Drawings
The detailed structure of the invention is described in detail below with reference to the accompanying drawings
FIG. 1 is a block diagram of a multi-factor water quality monitor according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the connection of a reaction unit according to an embodiment of the present invention;
FIG. 3 is an overall block diagram of a multi-factor water quality monitor according to another embodiment of the present invention;
FIG. 4 is a block diagram of a cross-section of a multi-factor water quality monitor according to another embodiment of the present invention;
FIG. 5 is a schematic view of a multi-factor water quality monitor according to another embodiment of the present invention in one direction;
FIG. 6 is a schematic view of another aspect of a multi-factor water quality monitor according to another embodiment of the present invention;
100-a reaction module; 110-a reaction unit; 111-plunger pump; 112-a digestion tank; 1121-a first high pressure valve; 1122-a second high pressure valve; 120-a first multi-channel switching valve; 113-a reservoir subunit; 114-a control subunit;
200-a measurement module; 210-a measurement cell; 220-a measurement unit; 300-total control module.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1 and 2, fig. 1 is a block diagram of a multi-factor water quality monitor according to an embodiment of the present invention; fig. 2 is a schematic connection diagram of a reaction unit 110 according to an embodiment of the present invention. A certain embodiment in a first aspect of the present application provides a multi-factor water quality monitor, comprising:
the reaction module 100 comprises a plurality of reaction units 110, wherein the reaction units 110 are used for obtaining corresponding water quality parameter liquid to be detected; wherein, a water sample to be detected flows into the reaction unit 110 to generate a corresponding water quality parameter liquid to be detected;
the reaction units 110 are connected to the measurement module 200, and the measurement module 200 is used for measuring the concentration of the water quality parameter.
The application has the advantages that: by applying the modularized design idea, the reaction process and the measurement process are separated, different reaction units 110 can be selected to be combined and installed in a user-defined mode in the process of testing different water quality parameter combinations, and different reaction units 110 can be independently carried out or can be parallel. Different water quality parameters are measured through different reaction units 110, so that the generation of the liquid to be measured of the water quality parameters is not influenced; and also because the reaction process is separated from the measurement process, the common measurement module 200 can obtain an accurate measurement result. Therefore, the water quality monitor has the characteristics of high integration degree, small occupied space and lower construction cost.
Wherein, the water quality parameters comprise one or more of COD, ammonia nitrogen, total phosphorus and total nitrogen.
It should be understood that, in the prior art, the peristaltic pump provides power to add or discharge liquid, the digestion tank 112 is matched with the thermocouple as the reaction unit 110, and the cuvette is matched with the spectrophotometer as the measurement unit 220 to obtain the absorbance of the liquid to be measured and then calculate the concentration of the factor, wherein, the peristaltic pump, the cuvette, the photometer and other components have large volumes, so that the system has low integral level, large space occupation and large whole volume.
It should be further understood that in the national standard and the industrial standard, the accuracy requirement of water quality detection is ± 10%, while in the existing instruments, the peristaltic pump is generally used for controlling the amount of added water sample and reagent, the accuracy is usually 1%, and the amount of added liquid is not accurate enough because the quantity of liquid is increased by one millilitre. Correspondingly, in order to ensure that a water sample to be detected and a reagent are fully reacted, at least more than 10mL of waste liquid needs to be generated in the whole reaction process every time, the detection frequency of an online monitoring instrument is at least 1 time per hour, the generated waste liquid amount is high, the workload of waste liquid treatment is increased, and the burden of operation and maintenance personnel is also increased.
Based on this, in a further embodiment, the reaction unit 110 comprises:
the plunger pump 111 is used for controlling the water sample to be detected to enter the corresponding digestion tank 112 and discharging the liquid to be detected of the water quality parameters after reaction;
and the digestion pool 112 is used for mixing the water quality parameters and the corresponding reaction reagents to generate a liquid to be detected with the corresponding water quality parameters.
In this embodiment, the plunger pump 111 is used to replace a conventional peristaltic pump to provide power to the fluid path of the entire reaction unit 110, and the forward and reverse rotation of the plunger pump provides fluid pumping and fluid drainage in different directions. And a corresponding plunger pump 111 is arranged for each reaction unit 110, and the peristaltic pump and the digestion tank 112 are matched to realize the same function. More importantly, the micro-upgrading plunger pump 111 can be used for controlling the flow more accurately, and the amount of liquid added each time is controlled to be micro-upgrading. Correspondingly, the used water sample and reagent to be detected can be controlled below 1mL, the final waste liquid amount can be reduced by more than 50% compared with that of a same-grade instrument, the environment is more friendly, and the workload of operation and maintenance personnel can be effectively reduced. Therefore, the effects of space saving, high-precision flow control and high-precision waste liquid control are achieved.
Wherein, one end of the digestion tank 112 is provided with a first high pressure valve 1121, and the other end of the digestion tank 112 is provided with a second high pressure valve 1122;
wherein the flow of the digestion tank 112 in and out is controlled by the first high pressure valve 1121 when the second high pressure valve 1122 is closed;
when the first high-pressure valve 1121 and the second high-pressure valve 1122 are both opened, the liquid to be measured as the water quality parameter flows out of the digestion tank 112.
In a specific embodiment, the bottom end of the digestion tank 112 is provided with a first high pressure valve 1121, and the top end of the digestion tank 112 is provided with a second high pressure valve 1122. In most cases, liquid flows into or out of the digestion tank 112 through the first high pressure valve 1121, and the second high pressure valve 1122 is closed; only after the reaction between the water sample to be tested and the corresponding reaction reagent is completed, the second high pressure valve 1122 is opened, and the water quality parameter to be tested flows out of the first high pressure valve 1121. Thereby, the reaction in the digestion tank 112 is performed, and the reaction effect in the digestion tank 112 is better.
The first high pressure valve 1121 and the second high pressure valve 1122 are both high temperature and high pressure valves; the exterior of the digestion tank 112 is wound with a heating wire, the temperature of the water sample to be measured is controlled and measured by a thermocouple, and the heating time and the heating temperature are determined by water quality parameters.
It should be understood that the reaction unit 110 further includes a first multi-channel switching valve 120 and a plurality of liquid storage subunits 113, and the first multi-channel switching valve 120 is connected to the first high-pressure valve 1121, the liquid storage subunits 113 and the measurement module 200;
the liquid storage subunit 113 is configured to store one or more of a water sample to be detected, a reaction reagent, distilled water, a zero standard, a standard liquid, and a waste liquid. Among them, various reaction reagents can be used in this embodiment. Thus, the water quality monitoring is automatically performed by the first multi-channel switching valve 120 and the plurality of liquid storage sub-units 113. Optionally, the first multi-channel switching valve 120 includes at least 6 electromagnetic valves, and the 6 electromagnetic valves are all connected to a common pipeline and are respectively connected to reagent bottles storing a water sample to be tested, a reaction reagent, distilled water, a zero-mark, a standard solution, and a waste solution.
Further, the measurement module 200 includes:
the measuring tank 210 is connected with the reaction module 100 and used for containing the liquid to be measured of the water quality parameter;
and the measuring unit 220 is arranged towards the measuring tank 210 and is used for obtaining the concentration of the water quality parameter through the liquid to be measured of the water quality parameter in the measuring tank 210.
In this embodiment, the measurement unit 220 facing the measurement cell 210 is used to obtain the concentration of the water quality parameter through the data of physical measurement, so as to ensure the measurement efficiency and realize the full automation of the measurement.
Generally, the liquid to be measured of the first factor enters the measuring cell 210 through a pipeline, the measuring cell 220 performs detection on the liquid, the measuring cell 210 is emptied after the detection is completed, and the measuring cell 210 and the pipeline are cleaned by using distilled water. And after cleaning, entering the next factor measuring link.
Specifically, the measurement unit 220 includes:
the light source is used for emitting broadband detection light to the liquid to be detected of the water quality parameter in the measuring tank 210;
the optical fiber probe is used for receiving a reflected signal of the liquid to be detected of the water quality parameter;
and the spectrometer module is used for analyzing the concentration of the water quality parameter according to the reflection signal.
In this embodiment, a broadband spectrometer is preferably used. In a specific embodiment, within a wavelength range of a certain spectrometer, there are 2048 pixel points, which are divided into 2047 wavelength intervals, each wavelength corresponds to light intensity, a characteristic wavelength (e.g., COD corresponds to 620nm characteristic wavelength) is selected, and within the interval (e.g., 620nm ± 1nm), the light intensity is integrated to obtain the light intensity of the measurement. One spectrometer can obtain characteristic spectral lines of all factors; the spectrum method is adopted, and the light intensity of the characteristic wavelength corresponding to each factor is measured based on the broad spectrum spectrometer module as a core device of the public measuring unit 220, so that the speed is high, and the sensitivity is high.
In this embodiment, the principle of the concentration calculation of the water quality parameter is as follows: according to the standard liquid with known concentration, setting the concentration value-light intensity value as an X-Y axis to obtain a linear equation, and then measuring the water sample and obtaining the light intensity to obtain the corresponding concentration value according to the straight line. Taking ammonia nitrogen as an example, the specific process is as follows:
the ammonia nitrogen concentration follows the following formula:
Y＝K*X+b ①
wherein Y represents a light intensity value measured by a spectrometer and is determined K, b after each calibration;
in the actual measurement, a concentration straight line equation is obtained according to two-point or multi-point calibration, and the actually measured water sample can find the corresponding concentration value on a straight line according to the measured value.
The calibration process is as follows:
taking a zero mark as a water sample, and measuring the light intensity Y1 by a spectrometer according to the complete reaction and measurement process;
taking standard solution with known concentration as a water sample, and measuring light intensity Y2 by a spectrometer according to a complete reaction and measurement process;
a zero-mark location C1 and a standard solution concentration location C2, wherein the light intensity obtained by the spectrometer is Y3 for a water sample with the ammonia nitrogen concentration of C3 after the calibration is assumed;
the formula is given as follows:
(Y1-Y2)/(C1-C2)＝(Y3-Y2)/(C3-C2)
y1, Y2, Y3, C1 and C2 are known, so the ammonia nitrogen concentration in the water sample is as follows:
C3＝C2+(Y3-Y2)*(C1-C2)/(Y1-Y2) ②
the measuring cell 210 is provided with a second multi-channel switching valve, and the second multi-channel switching valve is used for gating the corresponding reaction unit 110. It should be understood that the first multi-channel switching valve 120 belongs to the reaction unit 110, and is configured to control the digestion tank 112 and the plurality of liquid storage subunits 113 of the reaction unit 110, and generate the liquid to be tested for the water quality parameter through the first multi-channel switching valve 120; the second multi-channel switching valve in this embodiment is used to control the measuring cell 210 to select the reaction unit 110 for measuring a specific water quality parameter.
Further, the multi-factor water quality monitor further comprises: a control subunit 114 of the overall control module and reaction unit 110;
the general control module is used for controlling the control subunit 114 and the spectrometer module;
the control subunit 114 is configured to control the plunger pump 111 of the reaction unit 110 and the first multi-channel switching valve 120.
In this embodiment, the master control module is used to perform both the control of the plurality of control subunits 114 and the comprehensive analysis of the data obtained by the spectrometer module, and the spectrometer module belongs to the common module and can be controlled by the master control module. In order to better control the reaction in the digestion tank 112, each reaction unit 110 needs the assistance of a control subunit 114, so that the reaction can be better realized, the fineness is ensured, and the possibility of waste liquid is reduced; and the progress of the reaction can be fed back in real time.
The second aspect of the application provides a multi-factor water quality monitoring method, which applies the multi-factor water quality monitor and comprises the following steps:
responding to the detection instruction of the ith water quality parameter, and generating a liquid to be detected of the ith water quality parameter through the ith reaction unit 110;
analyzing the concentration of the ith water quality parameter in the water sample according to the liquid to be detected of the ith water quality parameter;
pumping out the liquid to be measured of the ith water quality parameter, and cleaning the digestion tank 112 in the measurement module 200;
wherein i is a positive integer.
Thus, the control subunit 114 of the single reaction unit 110 controls the actions of the pumps and valves, and performs operations such as pumping water samples, adding reagents, cleaning pipelines, and discharging the reacted mixture to the measuring cell 210. And after one reaction period is finished and the pipeline is cleaned, waiting for the master control module to give a command to enter the next reaction measurement period. Thereby achieving multi-factor measurement.
A third aspect of the present application provides profiling of an overall structure from a product perspective. Please refer to fig. 3 to 6. FIG. 3 is an overall block diagram of a multi-factor water quality monitor according to another embodiment of the present invention; FIG. 4 is a block diagram of a cross-section of a multi-factor water quality monitor according to another embodiment of the present invention; FIG. 5 is a schematic view of a multi-factor water quality monitor according to another embodiment of the present invention in one direction; fig. 6 is a schematic view of another direction of the multi-factor water quality monitor according to another embodiment of the present invention.
The multi-factor water quality monitor is provided with a case which is an upper case, a middle case and a lower case respectively.
The upper box is internally provided with a master control module which comprises a control mainboard, a display screen and the like; the display screen can be a capacitive touch screen, displays the state and water quality data of the equipment in real time, and is generally communicated with the master control module.
In the middle box, the reaction units 110 of each parameter factor are mainly arranged, and a single case can accommodate the reaction units 110 of 4 parameter factors at most; the second half is a part of the liquid storage subunit 113, a reagent bottle of each reaction unit 110, and the like are independently placed; the other part of the liquid storage subunit 113, such as distilled water and waste liquid barrels of various factors, is placed in the lower box;
wherein, each factor is provided with an independent reaction unit 110 for realizing the reaction color development of the reagent and the water sample; for each single factor, the reaction unit 110 consists of a precision plunger pump 111, a digestion tank 112, an electromagnetic valve group and a pipeline; each reaction unit 110 may be individually installed in the cabinet and connected to the corresponding inlet solenoid valve of the measuring cell 210 by a teflon tube connection.
The lower box comprises a measuring unit 220, distilled water of a liquid storage subunit 113, a waste liquid barrel and a tool for random maintenance; wherein the measuring unit 220 is in front of the panel and the reagent bucket is behind the panel.
The measurement unit 220 comprises a common measurement cell 210, a spectrometer and a liquid path; the top and the bottom of the common measuring tank 210 are both provided with electromagnetic valves, and the bottom electromagnetic valve is connected with a one-to-four distribution valve and is respectively connected with each reaction module 100 in a pair manner. A three-hole jack is arranged at the left lower part of the back plate of the case and is powered by AC 220V commercial power; two water inlets are arranged at the lower right part and connected with a water pipe of a primary water supply device, and the other water inlet is reserved.
Two water pipe interfaces are reserved on the back of the case, and one water pipe interface is connected with an external water sample to supply water samples of various factors; one is connected with distilled water for cleaning and diluting the pipeline, and a water outlet is reserved in the measuring unit 220 of each factor and is externally connected with a waste liquid barrel.
In summary, from the viewpoint of occupied space, the plunger pump 111 with a small volume is matched with the digestion tank 112, the spectrometer for measurement is in a modular design, the volume is smaller than 1/10 of the traditional spectrometer, the overall design is compact, the space is saved on the premise of meeting the aim of 'one machine for multiple measurements', and the high integration level is achieved.
From the perspective of liquid precision, use little upgrading plunger pump 111, compare the milliliter level peristaltic pump that current instrument adopted, the precision promotes 2 ~ 3 orders of magnitude, can be with the control of adding liquid volume at every turn in little upgrading, and the water sample and the reagent of use all can be controlled below 1mL, have higher precision, and the waste liquid volume that finally produces compares same level instrument and can reduce more than 50%, not only is more friendly to the environment, also can effectively reduce fortune dimension personnel's work burden.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A multifactor water quality monitor is characterized by comprising:
the reaction module comprises a plurality of reaction units, and the reaction units are used for acquiring corresponding water quality parameter liquid to be detected; wherein, a water sample to be detected flows into the reaction unit to generate a corresponding water quality parameter liquid to be detected;
the reaction units are connected with the measuring module, and the measuring module is used for measuring the concentration of the water quality parameter.
2. The multi-factor water quality monitor of claim 1, wherein the reaction unit comprises:
the plunger pump is used for controlling the water sample to be detected to enter the corresponding digestion tank and discharging the liquid to be detected of the water quality parameters after reaction;
and the digestion pool is used for mixing the water quality parameters and the corresponding reaction reagents to generate the liquid to be detected with the corresponding water quality parameters.
3. The multi-factor water quality monitor of claim 2, wherein: one end of the digestion tank is provided with a first high-pressure valve, and the other end of the digestion tank is provided with a second high-pressure valve;
wherein the inflow and outflow of the digestion tank is controlled by the first high pressure valve when the second high pressure valve is closed;
when the first high-pressure valve and the second high-pressure valve are both opened, the liquid to be measured for the water quality parameter flows out of the digestion tank.
4. The multi-factor water quality monitor of claim 3, wherein: the reaction unit further comprises a first multi-channel switching valve and a plurality of liquid storage subunits, and the first multi-channel switching valve is connected with the first high-pressure valve, the liquid storage subunits and the measuring module;
the liquid storage subunit is used for storing one or more of a water sample to be detected, a reaction reagent, distilled water, a zero standard, a standard liquid and a waste liquid.
5. The multi-factor water quality monitor according to any one of claims 1 to 4, wherein the measurement module comprises:
the measuring pool is connected with the reaction module and used for containing the liquid to be measured of the water quality parameters;
and the measuring unit faces the measuring tank and is used for obtaining the concentration of the water quality parameter through the liquid to be measured of the water quality parameter in the measuring tank.
6. The multi-factor water quality monitor according to claim 5, wherein the measuring unit comprises:
the light source is used for emitting broadband detection light to the liquid to be detected of the water quality parameter in the measuring tank;
the optical fiber probe is used for receiving a reflected signal of the liquid to be detected of the water quality parameter;
and the spectrometer module is used for analyzing the concentration of the water quality parameter according to the reflection signal.
7. The multi-factor water quality monitor of claim 6, wherein: the measuring cell is provided with a second multi-channel switching valve which is used for gating the corresponding reaction unit.
8. The multi-factor water quality monitor of claim 7, further comprising: a master control module and a control subunit of the reaction unit;
the master control module is used for controlling the control subunit and the spectrometer module;
and the control subunit is used for controlling the corresponding plunger pump and the first multi-channel switching valve.
9. The multi-factor water quality monitor of claim 2, wherein: the plunger pump is a micro-upgrading plunger pump.
10. The multi-factor water quality monitoring method is applied to the multi-factor water quality monitor according to any one of claims 1 to 9, and is characterized by comprising the following steps of:
responding to the detection instruction of the ith water quality parameter, and generating the ith water quality parameter to-be-detected liquid through an ith reaction unit;
analyzing the concentration of the ith water quality parameter in the water sample to be detected according to the ith water quality parameter to-be-detected liquid;
pumping out the liquid to be measured of the ith water quality parameter, and cleaning a digestion tank in the measurement module;
wherein i is a positive integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110176846.0A CN112798533A (en) | 2021-02-07 | 2021-02-07 | Multi-factor water quality monitor and multi-factor water quality monitoring method |
Applications Claiming Priority (1)
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| CN101294906A (en) * | 2008-06-17 | 2008-10-29 | 聚光科技（杭州）有限公司 | Water quality on-line monitoring method and system |
| WO2009049366A1 (en) * | 2007-10-17 | 2009-04-23 | Aqua Diagnostic Pty Ltd | Water analysis |
| CN107290495A (en) * | 2017-07-11 | 2017-10-24 | 中国科学院南京地理与湖泊研究所 | Evaluation of river water quality method based on multi-parameter index |
| CN111766208A (en) * | 2020-06-17 | 2020-10-13 | 南京南瑞水利水电科技有限公司 | Intelligent multi-parameter water quality analyzer and analysis method |
| CN212336808U (en) * | 2020-04-01 | 2021-01-12 | 深圳市中志环境科技有限公司 | Intelligent public toilet online supervision system based on Internet of things |
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| WO2009049366A1 (en) * | 2007-10-17 | 2009-04-23 | Aqua Diagnostic Pty Ltd | Water analysis |
| CN101294906A (en) * | 2008-06-17 | 2008-10-29 | 聚光科技（杭州）有限公司 | Water quality on-line monitoring method and system |
| CN107290495A (en) * | 2017-07-11 | 2017-10-24 | 中国科学院南京地理与湖泊研究所 | Evaluation of river water quality method based on multi-parameter index |
| CN212336808U (en) * | 2020-04-01 | 2021-01-12 | 深圳市中志环境科技有限公司 | Intelligent public toilet online supervision system based on Internet of things |
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Application publication date: 20210514 |