CN115683737A - Chemical analysis method water quality detection device and analysis method - Google Patents
Chemical analysis method water quality detection device and analysis method Download PDFInfo
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- CN115683737A CN115683737A CN202211334909.1A CN202211334909A CN115683737A CN 115683737 A CN115683737 A CN 115683737A CN 202211334909 A CN202211334909 A CN 202211334909A CN 115683737 A CN115683737 A CN 115683737A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 215
- 238000001514 detection method Methods 0.000 title claims abstract description 82
- 238000004458 analytical method Methods 0.000 title claims abstract description 52
- 238000009614 chemical analysis method Methods 0.000 title claims abstract description 15
- 238000005070 sampling Methods 0.000 claims abstract description 96
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 81
- 238000010191 image analysis Methods 0.000 claims abstract description 17
- 239000000126 substance Substances 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims description 27
- 239000012086 standard solution Substances 0.000 claims description 23
- 238000012372 quality testing Methods 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- 238000005286 illumination Methods 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
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- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 5
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- 239000000284 extract Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
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- 230000008447 perception Effects 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000012163 sequencing technique Methods 0.000 description 1
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Abstract
The invention provides a chemical analysis method water quality detection device and an analysis method, relates to the technical field of water quality detection equipment, and aims to solve the problems that a large amount of labor is needed for detecting water quality by using a chemical reagent in the prior art, the operation is complex, and the detection efficiency is low; the water quality sampling mechanism comprises a colorimetric tube and a sampling pump; the water quality analysis mechanism comprises a plurality of reagent tanks and a plurality of reagent pumps; the water quality analysis mechanism comprises an image collector and a water quality image analysis module, the colorimetric tube is transparent and colorless, the image collector collects images of solution in the colorimetric tube, and the water quality image analysis module analyzes the data to obtain detection parameters of the sampled water body. The chemical analysis water quality detection device is convenient to operate and use, high in detection efficiency and capable of greatly reducing the cost of equipment configuration.
Description
Technical Field
The invention relates to the technical field of water quality detection equipment, in particular to a chemical analysis method water quality detection device and an analysis method.
Background
In the current industrial aquaculture, there are 2 ways to detect water quality, instrumental analysis and chemical analysis. An instrumental analysis method is used as a main analysis method, and a sensor is used for collecting relevant water quality data; the chemical analysis method is to manually take a water sample, and after a reagent of a related detection data type is dropped into the water sample, the water sample is compared with a colorimetric card to obtain related water quality data.
The existing water quality sensor detects water quality and has the following problems: (1) the accuracy, current quality of water sensor all need calibrate before using, and in the use, according to the difference of quality of water condition, the cycle that the sensor need regularly rectify is also different to lead to the sensor to detect the inaccuracy of data after having used a period, but can't in time accurately judge the sensor again and whether need rectify. (2) The time for correcting the water quality sensor is long, each sensor needs 15-20 minutes, time and labor are consumed, the maintenance period is short, and the cost is high. (3) There are some water quality data that cannot be detected by water quality sensors, such as nitrate, nitrite, etc.
The existing chemical reagent for detecting water quality needs a large amount of manpower to carry out reagent detection and recording on different types of data, and is time-consuming, labor-consuming, low in detection efficiency and high in detection cost.
Disclosure of Invention
The invention aims to provide a chemical analysis method water quality detection device and an analysis method, which aim to solve the problems of large amount of labor, complex operation and low detection efficiency in the prior art for detecting water quality by using a chemical reagent.
The invention provides a water quality detection device by a chemical analysis method, which comprises a water quality sampling mechanism, a water quality detection mechanism, a water quality analysis mechanism and a controller,
the water quality sampling mechanism, the water quality detection mechanism and the water quality analysis mechanism are all connected with the controller;
the water quality sampling mechanism comprises a colorimetric tube and a sampling pump, wherein the inlet end of the colorimetric tube is connected with a sampling water inlet tube connected with a sampling water body, and the sampling pump is arranged on the sampling water inlet tube;
the water quality analysis mechanism comprises a plurality of reagent tanks and a plurality of reagent pumps, each reagent tank is connected with the inlet end of the colorimetric tube through a reagent water inlet tube, and the reagent pumps are respectively arranged on different reagent water inlet tubes;
the water quality analysis mechanism comprises an image collector and a water quality image analysis module, the colorimetric tube is transparent and colorless, the image collector is arranged opposite to the colorimetric tube and collects images of a solution in the colorimetric tube, and the water quality image analysis module extracts the collected images and analyzes the data to obtain detection parameters of a sampling water body.
As a preferable scheme of the present invention, the water quality sampling mechanism further includes a vibrating device, and the cuvette is connected to the vibrating device.
As a preferable scheme of the present invention, an outlet end of the colorimetric tube is connected to a drain pipe, the drain pipe is provided with a drain valve, an inlet end of the colorimetric tube is disposed at the top end of the colorimetric tube, and an outlet end of the colorimetric tube is disposed at the bottom end of the colorimetric tube.
The water quality sampling mechanism, the water quality detection mechanism, the water quality analysis mechanism and the controller are all arranged in the box body.
As a preferable scheme of the present invention, an illumination device is further disposed in the box body, the illumination device is disposed on a top surface in the box body, and a heat dissipation and air exhaust device is further disposed in the box body.
As a preferable scheme of the invention, a longitudinal first partition plate is arranged in the box body, the first partition plate divides an inner cavity of the box body into a sampling area for arranging the water quality sampling mechanism and a detection area for arranging the water quality detection mechanism, and the image collector is arranged in the sampling area.
In a preferred embodiment of the present invention, a plurality of transverse second partition plates and a plurality of longitudinal third partition plates are disposed in the detection area, the plurality of second partition plates partition the detection area into a plurality of reagent areas, each of the reagent areas is disposed with a set of the reagent tank and the reagent pump, and the third partition plate is disposed between each set of the reagent tank and the reagent pump.
As a preferable mode of the present invention, a transverse fourth partition plate is provided in the sampling region, the fourth partition plate divides the sampling region into a wiring region and a container region, the sampling pump is provided in the wiring region, and the cuvette, the image collector, and the illumination device are provided in the container region.
The invention also provides an analysis method of the water quality image analysis module, which is characterized by comprising the following steps:
converting different color bars corresponding to the standard solutions with different concentrations of the parameters on the color comparison card into HSV values;
acquiring HSV (hue, saturation and value) values of the sampled water body;
and comparing the HSV value of the sampled water body with the HSV values corresponding to the standard solutions with different concentrations to obtain the parameter concentration in the sampled water body.
As a preferred scheme of the present invention, the comparing the HSV value of the sampled water body with the HSV values corresponding to the standard solutions with different concentrations to obtain the parameter concentration in the sampled water body includes:
setting the color H proportion in the HSV model to be 0, setting the saturation S proportion to be P, setting the brightness V proportion to be (1-P),
converting HSV coordinate values corresponding to standard solutions with different concentrations into specific values according to the proportion of H, S and V, converting HSV coordinate values of a sampled water body into specific values,
and calculating to obtain the parameter concentration in the sampling water body according to the HSV value of the sampling water body and the HSV values corresponding to the standard solutions with different concentrations.
Compared with the prior art, the invention has the following positive effects:
1. the invention provides a water quality detection device and an analysis method by a chemical analysis method, which comprise a water quality sampling mechanism, a water quality detection mechanism, a water quality analysis mechanism and a controller, wherein the water quality sampling mechanism, the water quality detection mechanism and the water quality analysis mechanism are all connected with the controller; the water quality sampling mechanism comprises a colorimetric tube and a sampling pump, wherein the inlet end of the colorimetric tube is connected with a sampling water inlet tube connected with a sampling water body, and the sampling pump is arranged on the sampling water inlet tube; the water quality analysis mechanism comprises a plurality of reagent tanks and a plurality of reagent pumps, each reagent tank is connected with the inlet end of the colorimetric tube through a reagent water inlet tube, and the plurality of reagent pumps are respectively arranged on different reagent water inlet tubes; the water quality analysis mechanism comprises an image collector and a water quality image analysis module, the colorimetric tube is transparent and colorless, the image collector and the colorimetric tube are arranged oppositely and used for collecting images of solution in the colorimetric tube, and the water quality image analysis module is used for extracting the collected images and analyzing the collected images to obtain data of detection parameters of the sampling water body. The chemical analysis water quality detection device integrates the water quality sampling mechanism, the water quality detection mechanism and the water quality analysis mechanism into a whole and is controlled by the controller, automatic detection of water quality can be realized by the controller, the structure is simple and compact, the process layout is reasonable, the detection device is small in size, and the space is saved. Compared with the traditional method for detecting water quality through a water quality sensor, the method has the advantages that calibration operation is not needed, the detection result is more accurate and reliable, the daily maintenance management is simple, the maintenance cost is low, and the detected water quality parameters are more. Compared with the existing artificial chemical reagent for detecting water quality, the method has the advantages of convenient operation and use, high detection efficiency and greatly reduced equipment configuration cost, including equipment manufacturing cost, installation cost and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the water quality testing apparatus using chemical analysis according to the present invention;
FIG. 2 is a front view of the chemical analysis water quality detecting apparatus of the present invention;
FIG. 3 is a plan view of the chemical analysis water quality detecting apparatus of the present invention.
In the figure: 1. a box body; 11. a sampling area; 111. a container zone; 112. a wiring region; 12. a detection zone; 121. a reagent zone; 13. a first separator; 14. a second separator; 15. a third separator; 16. a fourth separator; 21. a sampling pump; 22. a colorimetric cylinder; 23. sampling a water inlet pipe; 24. sampling a water body; 31. a reagent pump; 32. a reagent tank; 33. a reagent water inlet pipe; 4. a vibration device; 51. a drain pipe; 52. a drain valve; 6. an image collector; 7. a lighting device; 8. heat dissipation and air exhaust equipment; 9. a controller; 91. a water quality image analysis module.
Detailed Description
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Example 1:
the water quality detection device by chemical analysis method provided by the embodiment comprises a water quality sampling mechanism, a water quality detection mechanism, a water quality analysis mechanism and a controller, as shown in fig. 1-3, wherein the water quality sampling mechanism, the water quality detection mechanism and the water quality analysis mechanism are all connected with the controller 9. The controller 9 is used for controlling the water quality sampling mechanism, the water quality detection mechanism and the water quality analysis mechanism, so that the automatic detection and the operation are realized.
The water quality sampling mechanism comprises a colorimetric tube 22 and a sampling pump 21, the inlet end of the colorimetric tube 22 is connected with a sampling water inlet tube 23 connected with a sampling water body 24, and the sampling pump 21 is arranged on the sampling water inlet tube 23. The sampling pump 21 conveys the sampling water body 24 to the colorimetric tube 22 through the sampling water inlet tube 23.
The water quality analysis mechanism comprises a plurality of reagent tanks 32 and a plurality of reagent pumps 31, wherein each reagent tank 32 is connected with the inlet end of the colorimetric tube 22 through a reagent inlet tube 33, and the reagent pumps 31 are respectively arranged on different reagent inlet tubes 33. Wherein, sampling pump 21 and reagent pump 31 are the peristaltic pump that the precision is higher, guarantee to draw the accuracy of measuring water volume and reagent volume. The reagent tank 32 with different water quality detection parameters is selected and matched, the detection reagent in the reagent tank 32 is conveyed into the colorimetric tube 22 through the corresponding reagent pump 31 through the reagent inlet tube 33, and the sampling water body 24 reacts with the detection reagent in the colorimetric tube 22 to develop color.
The water quality analysis mechanism comprises an image collector 6 and a water quality image analysis module 91, the colorimetric tube 22 is transparent and colorless, and the image collector 6 is arranged opposite to the colorimetric tube 22 and is used for collecting images of the solution in the colorimetric tube 22. The water quality image analysis module 91 extracts the acquired images and analyzes the acquired images to obtain data of detection parameters of the sampled water body. Wherein, the sampling pump 21, the reagent pump 31, the image collector 6 and the water quality image analysis module 91 are connected with the controller. The controller controls the volumes of the sampling water body 24 and the detection reagent conveyed into the colorimetric tube by controlling the running times of the sampling pump 21 and the reagent pump 31. The image collector 6 is a camera and photographs the solution reacted in the color tube 22, and the water quality image analysis module 91 extracts the photographed picture and analyzes and processes the picture, so as to obtain the data of the detection parameters of the sampling water body 24.
The chemical analysis method water quality testing device of this embodiment is integrated as an organic whole with water quality sampling mechanism, water quality testing mechanism, water quality analysis mechanism and controls through the controller, can realize automatic control through the controller and carry out the automated inspection of quality of water, simple structure, compactness, and technology is rationally distributed, and detection device is small, practices thrift the space. Compared with the traditional method for detecting water quality through a water quality sensor, the method has the advantages that calibration operation is not needed, the detection result is more accurate and reliable, the daily maintenance management is simple, the maintenance cost is low, and the detected water quality parameters are more. Compared with the existing artificial chemical reagent for detecting water quality, the method has the advantages of convenient operation and use, high detection efficiency and greatly reduced equipment configuration cost, including equipment manufacturing cost, installation cost and the like.
Preferably, the water quality sampling mechanism further comprises a vibrating device 4, and the colorimetric cylinder 22 is connected with the vibrating device 4.
The colour comparison tube 22 in this embodiment sets up on vibrations equipment 4, and vibrations equipment 4 vibrations drive colour comparison tube 22 vibrations and make sampling water 24 and detect reagent misce bene in the colour comparison tube 22, and the abundant chromogenic reaction that takes place makes and the testing result more accurate.
Preferably, the outlet end of the colorimetric cylinder 22 is connected with a drain pipe 51, and a drain valve 52 is arranged on the drain pipe 51. The inlet end of the cuvette 22 is disposed at the top end of the cuvette 22, and the outlet end of the cuvette 22 is disposed at the bottom end of the cuvette 22. The drain valve 52 is connected to the controller.
After the colorimetric tube 22 in this embodiment completes the detection, the controller controls the drain valve 52 to open so that the detection solution in the colorimetric tube 22 is drained through the drain pipe 51.
Preferably, the chemical analysis water quality detection apparatus provided by this embodiment further includes a closed box 1, and the water quality sampling mechanism, the water quality detection mechanism, the water quality analysis mechanism and the controller 9 are all disposed in the box 1.
The chemical analysis method water quality testing device of this embodiment makes compact structure, reduces occupation space, is convenient for remove, carry, increases the flexibility of using through with water quality sampling mechanism, water quality testing mechanism, water quality analysis mechanism and controller 9 integration in same box 1.
Preferably, a lighting device 7 is further disposed in the box body 1, the lighting device 7 is disposed on the top surface in the box body 1, and a heat dissipation and air exhaust device 8 is further disposed in the box body 1. The lighting device 7 and the heat dissipating air exhausting device 8 are both connected to a controller 9. The lighting device 7 can provide lighting for the interior of the box body, so that the image collector 6 can photograph the color tube conveniently, the mixed water sample can be photographed more clearly, and the calculation result is more reliable.
Preferably, as shown in fig. 2 and fig. 3, a longitudinal first partition plate 13 is arranged in the box body 1, the first partition plate 13 divides the inner cavity of the box body 1 into a sampling area 11 for arranging a water quality sampling mechanism and a detection area 12 for arranging a water quality detection mechanism, and the image collector 6 is arranged in the sampling area 11. Reagent inlet tube 33 passes through first baffle 13 to be connected with the colour comparison tube. First baffle 13 separates water sampling mechanism and water quality testing mechanism and makes it not influenced each other, and the space sets up more rationally, also reduces the influence to the testing result.
Preferably, a plurality of transverse second partition plates 14 and a longitudinal third partition plate 15 are arranged in the detection zone 12, the plurality of second partition plates 14 partition the detection zone 12 to form a plurality of reagent zones 121, and a set of reagent tanks 32 and reagent pumps 31 are arranged in each reagent zone 121. The third partition 15 is provided between each set of the reagent tanks 32 and the reagent pump 31. The reagent tank is transparent so as to observe the amount of the reagent in the reagent tank. The second partition plate 14 and the third partition plate 15 are arranged to separate the reagent tank 32 and the reagent pump 31 in the detection area 12, so that the reagent tank and the reagent pump do not affect each other, and the space arrangement is more reasonable.
Preferably, a transverse fourth partition 16 is arranged in the sampling area 11, the fourth partition 16 divides the sampling area 11 into a wiring area 112 and a container area 111, the sampling pump 21 is arranged in the wiring area 112, and the colorimetric tube 22, the image collector 6 and the illumination device 7 are arranged in the container area 111. The wiring area 112 is used for installing electrical components such as a controller and the like, is prevented from being influenced by the container area 111, and meanwhile, the accuracy of a detection result in the container area 111 can be ensured.
The chemical analysis method water quality detection device of the embodiment mainly comprises the following detection steps: firstly, a sampling pump 21 pumps a certain amount of sampling water 24 to wash the colorimetric tube 22, and after the washing is finished, a drain valve 52 is opened to drain water in the colorimetric tube; then, the sampling pump 21 pumps a certain amount of sampling water 24 and conveys the sampling water to the colorimetric tube 22; the reagent pump 31 pumps a certain amount of detection reagent and conveys the detection reagent to the water body detected in the colorimetric cylinder 22; starting the vibration device 4, uniformly mixing the detection water body and the detection reagent in the colorimetric tube 22, and standing; the image collector 6 and the lighting device 7 are started simultaneously to shoot and upload the liquid in the colorimetric tube 22; the drain valve 52 is opened, and after the liquid in the colorimetric tube 22 is drained completely, the drain valve 52 is closed; the water quality image analysis module 91 extracts the shot image, analyzes the water quality data and records the data; the whole detection process is automatic, and manual operation is not needed. The detection device can realize the control of data recording, report forms, remote operation and the like through the network monitoring module, and realize unmanned control.
The embodiment also provides an analysis method of the water quality image analysis module, which is characterized by comprising the following steps:
converting different color bars corresponding to the standard solutions with different concentrations of the parameters on the color comparison card into HSV values;
acquiring HSV values of a sampling water body;
and comparing the HSV value of the sampled water body with the HSV values corresponding to the standard solutions with different concentrations to obtain the parameter concentration in the sampled water body.
In the embodiment, the colors of the standard solutions with different concentrations and the reaction color of the sampling water body can be expressed as specific numerical values by using the HSV model, and then calculation is performed, while the final detection result is obtained by artificial perception through the traditional comparison of the color of the liquid and the color in the colorimetric card, and the detection result obtained by artificial perception can only be determined in one interval, so that accurate data cannot be obtained, and the calculation result of the analysis method of the embodiment is more accurate.
Preferably, the comparing the HSV value of the sampling water body with the HSV values corresponding to the standard solutions with different concentrations to obtain the parameter concentration in the sampling water body includes:
setting the color H proportion in the HSV model to be 0, setting the saturation S proportion to be P, setting the brightness V proportion to be (1-P),
converting HSV coordinate values corresponding to standard solutions with different concentrations into specific values according to the proportion of H, S and V, converting the HSV coordinate values of the sampled water body into the specific values,
and calculating to obtain the parameter concentration in the sampled water body according to the HSV value of the sampled water body and the HSV values corresponding to the standard solutions with different concentrations.
The implementation principle of the analysis method of the embodiment is as follows: firstly, converting different color bars corresponding to standard solutions with different concentrations of parameters on a colorimetric card into specific indexes of an HSV model, so that N HSV color points can be obtained according to the number of the color bars of the standard solutions
R1＝(H1，S1，V1)；R2＝(H2，S2，V2)；......RN＝(Hn，Sn，Vn)。
Concentration values of different standard solutions, e.g. D1=0, represented by each different color bar; d2=0.005.. D7=0.5; DN =.
Thereby obtaining different HSV values corresponding to the standard solutions with different concentrations.
When the concentration of the standard solution on the color comparison card is gradually increased, the color bar changes into H (color) with almost no fluctuation, V (brightness) has fluctuation but small fluctuation, and the dimensional saturation S has huge fluctuation, namely the color of the color bar is consistent, but the color is a process from light to dark, and finally the color is reflected on S of the HSV model, namely the saturation.
Thereby converting the color calculation of the standard solution on the color chart and the sampling water body into mathematical calculation. The final result is obtained by mainly adopting indexes of S (saturation) and V (brightness) except the fluctuation influence of H.
Setting the color H ratio as 0, setting the saturation ratio as P, setting the brightness ratio as (1-P), setting the RN = Sn P + Vn (1-P) of the standard solution, defining the result of the final sampling water body as H, s, v, and calculating the result of the final sampling water body as R = s P + v (1-P)
Sequencing R and the original color points R1 and R2.. Rn to obtain an interval where R is located. If the parameter concentration is between Rn and Rn +1, the parameter concentration in the sampling water body is obtained as follows:
result＝Dn+(R-Rn)*(Dn+1-Dn)/(Rn+1-Rn)
therefore, the concentration of a certain parameter of the sampled water body is calculated by the analysis method of the embodiment, for example, when the nitrite concentration in the water quality is detected, a nitrite reagent is used as a detection reagent, and the concentration of the nitrite in the sampled water body is calculated by converting each line on the nitrite colorimetric card into an HSV value.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can make several variations and modifications without departing from the inventive concept of the present invention, and all such variations and modifications are intended to be covered by the scope of the present invention.
Claims (10)
1. A water quality detection device by chemical analysis is characterized by comprising a water quality sampling mechanism, a water quality detection mechanism, a water quality analysis mechanism and a controller,
the water quality sampling mechanism, the water quality detection mechanism and the water quality analysis mechanism are all connected with the controller (9);
the water quality sampling mechanism comprises a colorimetric tube (22) and a sampling pump (21), the inlet end of the colorimetric tube (22) is connected with a sampling water inlet tube (23) connected with a sampling water body (24), and the sampling pump (21) is arranged on the sampling water inlet tube (23);
the water quality analysis mechanism comprises a plurality of reagent tanks (32) and a plurality of reagent pumps (31), each reagent tank (32) is connected with the inlet end of the colorimetric tube (22) through a reagent water inlet tube (33), and the reagent pumps (31) are respectively arranged on different reagent water inlet tubes (33);
the water quality analysis mechanism comprises an image collector (6) and a water quality image analysis module (91), the colorimetric tube (22) is transparent and colorless, the image collector (6) is arranged opposite to the colorimetric tube (22) and is used for collecting images of the solution in the colorimetric tube (22), and the water quality image analysis module (91) is used for extracting the collected images and analyzing the collected images to obtain data of detection parameters of the sampled water body.
2. The chemical analysis method water quality detection device according to claim 1, wherein the water quality sampling mechanism further comprises a vibration device (4), and the colorimetric tube (22) is connected to the vibration device (4).
3. The water quality detecting device by the chemical analysis method according to claim 1, wherein an outlet end of the colorimetric tube (22) is connected to a drain pipe (51), a drain valve (52) is disposed on the drain pipe (51), an inlet end of the colorimetric tube (22) is disposed at a top end of the colorimetric tube (22), and an outlet end of the colorimetric tube (22) is disposed at a bottom end of the colorimetric tube (22).
4. The chemical analysis water quality detection device according to claim 1, further comprising a closed box body (1), wherein the water quality sampling mechanism, the water quality detection mechanism, the water quality analysis mechanism and the controller (9) are all arranged in the box body (1).
5. A chemical analysis water quality detecting device according to claim 4, characterized in that a lighting device (7) is further arranged in the box body (1), the lighting device (7) is arranged on the top surface in the box body (1), and a heat dissipation and air exhaust device (8) is further arranged in the box body (1).
6. A water quality detection device by chemical analysis according to claim 5, wherein a longitudinal first clapboard (13) is arranged in the box body (1), the first clapboard (13) divides the inner cavity of the box body (1) into a sampling area (11) for arranging the water quality sampling mechanism and a detection area (12) for arranging the water quality detection mechanism, and the image collector (6) is arranged in the sampling area (11).
7. A water quality testing apparatus according to claim 6, wherein a plurality of second horizontal partition plates (14) and a third vertical partition plate (15) are disposed in said testing region (12), a plurality of said second partition plates (14) partition said testing region (12) to form a plurality of reagent regions (121), a set of said reagent tanks (32) and reagent pumps (31) are disposed in each of said reagent regions (121), and said third partition plate (15) is disposed between each set of said reagent tanks (32) and reagent pumps (31).
8. A chemical analysis method water quality detection device according to claim 6, characterized in that a transverse fourth partition plate (16) is arranged in the sampling area (11), the fourth partition plate (16) divides the sampling area (11) into a wiring area (112) and a container area (111), the sampling pump (21) is arranged in the wiring area (112), and the colorimetric tube (22), the image collector (6) and the illumination device (7) are arranged in the container area (111).
9. An analysis method of the water quality image analysis module according to any one of claims 1 to 8, comprising:
converting different color bars corresponding to the standard solutions with different concentrations of the parameters on the color comparison card into HSV values;
acquiring HSV (hue, saturation and value) values of the sampled water body;
and comparing the HSV value of the sampled water body with the HSV values corresponding to the standard solutions with different concentrations to obtain the parameter concentration in the sampled water body.
10. The analysis method according to claim 9, wherein the comparing the HSV values of the sampled water body with the HSV values corresponding to the standard solutions of different concentrations to obtain the parameter concentration in the sampled water body comprises:
setting the color H proportion in the HSV model to be 0, setting the saturation S proportion to be P, setting the brightness V proportion to be (1-P),
converting HSV coordinate values corresponding to standard solutions with different concentrations into specific values according to the proportion of H, S and V, converting HSV coordinate values of a sampled water body into specific values,
and calculating to obtain the parameter concentration in the sampling water body according to the HSV value of the sampling water body and the HSV values corresponding to the standard solutions with different concentrations.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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