Water quality on-line testing instrument adopting spectrum method

Abstract

The utility model discloses a spectrum method water quality on-line testing instrument, which is characterized in that firstly, a quantitative sampling element is used for respectively extracting a culture water body to be tested and a reagent from a water storage box and a reagent box into a transparent test tube for mixing so as to obtain a mixed solution to be tested, and then a light-emitting unit is controlled to emit light with a specific wavelength to pass through the transparent test tube; the photoelectric sensing unit is used for detecting the spectral intensity of the light after penetrating through the mixed liquid to be detected, the storage chip is used for calculating the content data of the target component to be detected based on a spectrum method and transmitting the content data to the main control chip, and the main control chip is used for remotely transmitting the content data to a data center, so that the water quality on-line test of the aquatic water is realized. Moreover, the test box module adopts a modular design and is integrally packaged, and only a pipeline interface and an electrical interface are reserved, so that the whole test box module can be directly replaced during regular maintenance, the main control chip can directly read related parameters stored in the storage chip after replacement, a user does not need to perform calibration operation on site, and the maintenance operation is simpler.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture water quality detection, and in particular to an on-line water quality testing instrument using a spectroscopic method. Background Art

[0002] At present, there are mainly two types of water quality testing methods for aquaculture water. One is the chemical reagent testing method. By adding corresponding chemical reagents and observing or testing and comparing the color of the water body to be tested after adding the reagents, the content of the component to be tested is measured. It has the advantage of simple operation, but it requires testers to take samples on site for testing, and real-time testing cannot be carried out, which cannot meet the requirements of on-line detection. The other is the electrode method testing, which can realize real-time testing and remote on-line measurement, and is convenient for realizing intelligent automatic control. However, it has high requirements for electrodes, and manual cleaning and calibration of the electrodes need to be carried out regularly, which requires certain professional technical requirements for users and is not convenient for popularization and application. Therefore, there is an urgent need for a water quality testing instrument that can realize on-line testing and does not require manual calibration at present. Summary of the Utility Model

[0003] The utility model provides an on-line water quality testing instrument using a spectroscopic method, which can realize remote on-line testing of aquaculture water bodies without the need for users to perform calibration operations on site, reduces the professional technical requirements for users, and makes the maintenance operation simpler, which is beneficial to realizing wide popularization and application.

[0004] According to one aspect of the utility model, there is provided an on-line water quality testing instrument using a spectroscopic method, including a water storage box, at least one reagent box, a plurality of quantitative sampling elements, a test box module and a main control chip. The water storage box stores the aquaculture water body to be tested, and the reagent box stores chemical reagents. The test box module includes a transparent test tube, a light emitting unit, a photoelectric sensing unit and a storage chip. The light emitting unit and the photoelectric sensing unit are respectively located on both sides of the transparent test tube. The storage chip is electrically connected to the photoelectric sensing unit and the main control chip respectively. The quantitative sampling elements are connected to the water storage box, at least one reagent box and the transparent test tube through pipelines respectively, and are used for quantitatively extracting the aquaculture water body to be tested and chemical reagents into the transparent test tube for mixing to form a test mixture. The light emitting unit is used for emitting light with a specific wavelength, the photoelectric sensing unit is used for detecting the spectral intensity of the light after passing through the test mixture, the storage chip is used for calculating the content data of the component to be tested according to the detection result of the photoelectric sensing unit and transmitting it to the main control chip, the main control chip is used for remotely transmitting the content data of the component to be tested to a data center, the main control chip is also electrically connected to the quantitative sampling elements, the optical parameters and electrical parameters are pre-stored in the storage chip, and the test box module is integrally packaged and only pipeline interfaces and electrical interfaces are reserved.

[0005] Further, it also includes a drainage pump electrically connected to the main control chip. The drainage pump is connected to the bottom of the transparent test tube through a pipeline and is used to aerate the transparent test tube in the forward direction before the test to fully mix the aquaculture water to be tested and the chemical reagent. It is also used to drain the mixed liquid to be tested in the transparent test tube by reversing after the test is completed.

[0006] Further, the drainage pump is connected to a cleaning reflux box and a waste liquid treatment box through a shunt solenoid valve. The shunt solenoid valve is electrically connected to the main control chip and is used to connect the drainage pump and the waste liquid treatment box when draining the mixed liquid to be tested, and is also used to connect the drainage pump and the cleaning reflux box when draining the cleaning water.

[0007] Further, a heating module is arranged below the waste liquid treatment box. The heating module is electrically connected to the main control chip and is used to heat and evaporate the waste liquid stored in the waste liquid treatment box.

[0008] Further, the reagent kit is installed in a constant temperature box.

[0009] Further, it also includes a water inlet pump electrically connected to the main control chip. The water inlet pump is connected to the aquaculture pond and the water storage box through pipelines respectively and is used to supplement the aquaculture water to be tested into the water storage box.

[0010] Further, a liquid level monitoring element is arranged in the water storage box. The liquid level monitoring element is electrically connected to the main control chip. Before the test, the main control chip is used to control the water inlet pump to start working when the liquid level monitoring device detects that the water level in the water storage box is lower than the first preset value, and is also used to control the water inlet pump to stop working when the liquid level monitoring device detects that the water level in the water storage box is higher than the second preset value, where the second preset value is higher than the first preset value.

[0011] Further, it also includes a display screen electrically connected to the main control chip.

[0012] Further, it also includes an alarm module electrically connected to the main control chip. The main control chip is also used to control the alarm module to give an alarm reminder when the content data of the component to be tested is higher than the preset threshold.

[0013] Further, it also includes a human-computer interaction unit electrically connected to the main control chip.

[0014] The utility model has the following beneficial effects:

[0015] The on-line water quality testing instrument using spectroscopy of the present utility model first respectively extracts the water body to be tested for aquaculture and the reagent from the water storage box and the reagent box into a transparent test tube through a quantitative sampling element for mixing to obtain a mixed solution to be tested, then controls the light emitting unit to emit light with a specific wavelength to pass through the transparent test tube, the photoelectric sensing unit detects the spectral intensity after the light passes through the mixed solution to be tested, and the storage chip calculates the content data of the target component to be tested based on spectroscopy and transmits it to the main control chip, and the main control chip then remotely transmits it to the data center, thereby realizing the on-line water quality testing of the aquaculture water body. Moreover, the test box module 4 adopts a modular design, is integrally encapsulated and only the pipeline interface and the electrical interface are reserved. During regular maintenance, the entire module can be directly replaced as a whole. When the test box module 4 leaves the factory, the relevant optical parameters and electrical parameters of the detection light emission / reception and the test tube have been pre-stored in the storage chip 44. After replacement, the main control chip 5 can directly read the relevant parameters stored in the storage chip 44 without the user performing calibration operations on site, reducing the professional technical requirements for users, making the maintenance operation simpler, and facilitating wide promotion and application.

[0016] In addition to the purposes, features and advantages described above, the present utility model has other purposes, features and advantages. The following will refer to the drawings to further elaborate on the present utility model in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0018] Figure 1 is a schematic structural diagram of the on-line water quality testing instrument using spectroscopy of the preferred embodiment of this application.

[0019] DESCRIPTION OF THE REFERENCE NUMERALS

[0020] 1, water storage box; 2, reagent box; 3, quantitative sampling element; 4, test box module; 5, main control chip; 6, drainage pump; 7, shunt solenoid valve; 8, cleaning and reflux box; 9, waste liquid treatment box; 10, heating module; 11, constant temperature box; 12, water inlet pump; 13, display screen; 14, human-computer interaction unit; 41, transparent test tube; 42, light emitting unit; 43, photoelectric sensing unit; 44, storage chip; 100, data center; 200, aquaculture pond. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with the embodiments to elaborate on this application in detail.

[0022] Refer to Figure 1, a preferred embodiment of the present application provides an on-line water quality testing instrument by spectrometry, which includes a water storage box 1, at least one reagent kit 2, a plurality of quantitative sampling elements 3, a test box module 4 and a main control chip 5. The water storage box 1 temporarily stores the aquaculture water to be tested. The reagent kit 2 stores chemical reagents. Among them, the number of reagent kits 2 can be flexibly set, and each reagent kit 2 stores one chemical reagent. When testing, the chemical reagent to be added can be selected according to the testing needs. The test box module 4 includes a transparent test tube 41, a light emitting unit 42, a photoelectric sensing unit 43 and a storage chip 44. The light emitting unit 42 and the photoelectric sensing unit 43 are respectively located on both sides of the transparent test tube 41. The storage chip 44 is electrically connected to the photoelectric sensing unit 43 and the main control chip 5 respectively. The light emitting unit 42 is used to emit light of a specific wavelength. The photoelectric sensing unit 43 is used to detect the spectral intensity of the light after passing through the test mixture to be tested. The storage chip 44 is used to calculate the content data of the component to be tested according to the detection result of the photoelectric sensing unit 43 and transmit it to the main control chip 5. The light emitting unit 42 can adopt an ultraviolet lamp tube, an infrared lamp tube or other light emitting tubes, and a light emitting tube with a corresponding specific wavelength is specifically selected according to the target component to be tested. The photoelectric sensing unit 43 adopts a photoelectric sensor. After the light emitted by the light emitting unit 42 passes through the liquid to be tested in the transparent test tube 41, the target component to be tested in the liquid to be tested will absorb the light. The photoelectric sensing unit 43 detects the spectral intensity of the light after passing through the liquid to be tested. The storage chip 44 calculates the content of the target component to be tested according to the spectral intensity of the light after passing through the liquid to be tested. Among them, the specific calculation principle belongs to the existing spectrometry detection principle and will not be elaborated here. The quantitative sampling element 3 is connected to the water storage box 1, at least one reagent kit 2 and the transparent test tube 41 through pipelines respectively, and is used to quantitatively extract the aquaculture water to be tested and chemical reagents into the transparent test tube 41 for mixing to form a test mixture. Among them, the quantitative sampling element 3 can adopt a peristaltic pump or a syringe pump. The main control chip 5 is communicatively connected to the data center 100. For example, the main control chip 5 is communicatively connected to the data center 100 through a 485 communication module. The main control chip 5 is used to remotely transmit the content data of the component to be tested to the data center 100, and can also be real-time transmitted to the user's intelligent terminal device (such as a mobile phone, a computer, a tablet, etc.). In addition, the main control chip 5 is also electrically connected to the quantitative sampling element 3, and is used to control the working state of the quantitative sampling element 3 to realize quantitative control when adding the aquaculture water to be tested and the reagent. The storage chip 44 pre-stores the relevant optical parameters and electrical parameters of light emission / reception and the test tube. The test box module 4 is integrally packaged and only the pipeline interface and the electrical interface are reserved.When the detection instrument needs to be regularly maintained after a period of detection, the prior art usually replaces at least one of the transparent test tube 41, the light emitting unit 42, and the photoelectric sensing unit 43. After replacing the components, in order to ensure the accuracy of the test results, on-site calibration operations are required, such as calibrating the optical parameters (such as light transmittance) of the transparent test tube 41, the electrical parameters of the light emitting unit 42 and the photoelectric sensing unit 43, etc. This requires users to have a high level of professional technical skills. The test cartridge module 4 of the present application adopts a modular design, is integrally encapsulated and only the pipeline interface and electrical interface are retained. During regular maintenance, the entire module can be directly replaced as a whole. When the test cartridge module 4 leaves the factory, the storage chip 44 has already pre-stored the relevant optical parameters and electrical parameters for detecting light emission / reception and the test tube. After replacement, the main control chip 5 can directly read the relevant parameters stored in the storage chip 44, without the need for users to perform on-site calibration operations, reducing the professional technical requirements for users, making the maintenance operation simpler, and facilitating wide popularization and application. Among them, the main control chip 5 can adopt an integrated design or a split design of MCU + control unit.

[0023] It can be understood that for the on-line water quality testing instrument using spectroscopy method in this embodiment, first, the quantitative sampling element 3 is used to respectively extract the water body to be tested for aquaculture and the reagent from the water storage box 1 and the reagent box 2 into the transparent test tube 41 for mixing to obtain the mixed solution to be tested. Then, the light emitting unit 42 is controlled to emit light with a specific wavelength through the transparent test tube 41, and the photoelectric sensing unit 43 detects the spectral intensity of the light after passing through the mixed solution to be tested. The storage chip 44 calculates the content data of the target component to be tested based on the spectroscopy method and transmits it to the main control chip 5, and the main control chip 5 remotely transmits it to the data center 100, thus realizing the on-line water quality testing of the aquaculture water body. Moreover, the test cartridge module 4 adopts a modular design, is integrally encapsulated and only the pipeline interface and electrical interface are retained. During regular maintenance, the entire module can be directly replaced as a whole. When the test cartridge module 4 leaves the factory, the storage chip 44 has already pre-stored the relevant optical parameters and electrical parameters for detecting light emission / reception and the test tube. After replacement, the main control chip 5 can directly read the relevant parameters stored in the storage chip 44, without the need for users to perform on-site calibration operations, reducing the professional technical requirements for users, making the maintenance operation simpler, and facilitating wide popularization and application.

[0024] Optionally, the transparent test tube 41 is a thin tube that is transparent through the upper and lower parts. The upper part of the transparent test tube 41 is connected to a funnel to facilitate receiving the extracted water body to be tested for aquaculture and the chemical reagent, and the lower part is connected to a drainage pump 6.

[0025] In addition, the on-line water quality testing instrument using spectrometry further includes a drainage pump 6 electrically connected to the main control chip 5. The drainage pump 6 is connected to the bottom of the transparent test tube 41 through a pipeline, and is used to aerate the transparent test tube 41 in the forward direction before the test to fully mix the aquaculture water body to be tested and the chemical reagent, and is also used to discharge the mixed liquid to be tested in the transparent test tube 41 by reversing after the test is completed.

[0026] It can be understood that after the quantitative sampling element 3 quantitatively extracts the aquaculture water body to be tested and the reagent into the transparent test tube 41, the main control chip 5 controls the drainage pump 6 to rotate forward to aerate the transparent test tube 41, so as to fully mix the aquaculture water body to be tested and the chemical reagent, improve the efficiency, sufficiency and uniformity of the chemical reaction. When the test is completed, considering that the transparent test tube 41 usually uses a thin tube, due to the existence of the surface tension of water, it is difficult to drain the liquid by gravity. At this time, the main control chip 5 controls the drainage pump 6 to reverse, so as to extract the mixed liquid to be tested in the transparent test tube 41 and empty the mixed liquid in the transparent test tube 41 as much as possible.

[0027] Optionally, the drainage pump 6 is connected to a cleaning return box 8 and a waste liquid treatment box 9 through a shunt solenoid valve 7. The shunt solenoid valve 7 is electrically connected to the main control chip 5 and is used to connect the drainage pump 6 and the waste liquid treatment box 9 when discharging the mixed liquid to be tested, and is also used to connect the drainage pump 6 and the cleaning return box 8 when discharging the cleaning water. Among them, the shunt solenoid valve 7 can adopt a two-position three-way reversing solenoid valve.

[0028] It can be understood that when it is necessary to discharge the mixed liquid in the transparent test tube 41 after the test is completed, the main control chip 5 controls the shunt solenoid valve 7 to switch to communicate with the waste liquid treatment box 9, and the drainage pump 6 extracts the mixed liquid into the waste liquid treatment box 9. When it is necessary to clean the transparent test tube 41, the main control chip 5 controls the shunt solenoid valve 7 to switch to communicate with the cleaning return box 8, and the drainage pump 6 extracts the cleaning water into the cleaning return box 8, thus realizing the shunt discharge of waste liquid and cleaning water and preventing the test waste liquid from polluting the aquaculture pond 200 and the environment. In addition, the on-line water quality testing instrument using spectrometry further includes a clear water box. Clear water is stored in the clear water box, and the clear water is extracted from the clear water box into the transparent test tube 41 by a water pump for cleaning it. Of course, if there is a clean water source at the test site, the clear water can also be directly extracted into the transparent test tube 41 by a water pump for cleaning, and there is no need to set up a clear water box.

[0029] Preferably, a heating module 10 is provided below the waste liquid treatment box 9. The heating module 10 is electrically connected to the main control chip 5 and is used to heat and evaporate the waste liquid stored in the waste liquid treatment box 9. It can be understood that after the waste liquid is collected in the waste liquid treatment box 9, the main control chip 5 can control the heating module 10 to start working to heat and evaporate the waste liquid, eliminating the subsequent treatment link of the waste liquid. In addition, an exhaust gas treatment module is provided above the waste liquid treatment box 9 to filter the exhaust gas generated by heating and evaporating the waste liquid and prevent pollution of the atmospheric environment. Among them, the heating module 10 can adopt a heating tube or a heating sheet.

[0030] In addition, all the reagent kits 2 are arranged in a constant temperature box 11, which is beneficial to extending the shelf life of chemical reagents and reducing the number of reagent replacements.

[0031] In addition, the on-line water quality testing instrument by spectroscopy further includes a water inlet pump 12 electrically connected to the main control chip 5. The water inlet pump 12 is respectively connected to the aquaculture pond 200 and the water storage box 1 through pipelines and is used to supplement the aquaculture water body to be tested into the water storage box 1. It can be understood that by supplementing the aquaculture water body to be tested into the water storage box 1 through the water inlet pump 12, the continuous testing requirements can be met.

[0032] Optionally, a liquid level monitoring element is arranged in the water storage box 1. The liquid level monitoring element is electrically connected to the main control chip 5. Before the test, the main control chip 5 is used to control the water inlet pump 12 to start working when the liquid level monitoring device detects that the water level in the water storage box 1 is lower than the first preset value, and is also used to control the water inlet pump 12 to stop working when the liquid level monitoring device detects that the water level in the water storage box 1 is higher than the second preset value, where the second preset value is higher than the first preset value.

[0033] It can be understood that during the test, the liquid level monitoring element is used to monitor the water level in the water storage box 1 in real time. If it is detected that the water level in the water storage box 1 is lower than the first preset value, it means that the water reserve in the water storage box 1 is insufficient and does not meet the water volume requirement for testing. Then the main control chip 5 controls the water inlet pump 12 to start working to supplement the aquaculture water body to be tested into the water storage box 1. When it is detected that the water level in the water storage box 1 is higher than the first preset value, it means that the water reserve in the water storage box 1 exceeds the warning line. Then the main control chip 5 controls the water inlet pump 12 to stop working to prevent the water in the water storage box 1 from overflowing due to excessive water volume, thus realizing the intelligent start-stop control of the water inlet pump 12.

[0034] In addition, the on-line water quality testing instrument using spectrometry further includes a display screen 13 electrically connected to the main control chip 5, which can display the test results locally in real time. Optionally, the on-line water quality testing instrument using spectrometry further includes an alarm module electrically connected to the main control chip 5. The main control chip 5 is further configured to control the alarm module to give an alarm reminder when the content data of the component to be measured is higher than a preset threshold value. Among them, the alarm methods include one or more of sound alarm, light alarm, and text display alarm. Of course,

[0035] In addition, the on-line water quality testing instrument using spectrometry further includes a man-machine interaction unit 14 electrically connected to the main control chip 5. The man-machine interaction unit 14 can adopt a keyboard, a mouse or a touch screen to facilitate the user to set test parameters. Among them, if the man-machine interaction unit 14 adopts a touch screen, it can also be integrally arranged with the display screen 13.

[0036] Although the preferred embodiments of the present application have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concepts. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present application.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

[0038] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An on-line water quality testing instrument by spectrometry, characterized in that, It includes a water storage box (1), at least one reagent kit (2), a plurality of quantitative sampling elements (3), a test box module (4) and a main control chip (5). The water storage box (1) stores the aquaculture water to be tested. The reagent kit (2) stores chemical reagents. The test box module (4) includes a transparent test tube (41), a light emitting unit (42), a photoelectric sensing unit (43) and a storage chip (44). The light emitting unit (42) and the photoelectric sensing unit (43) are respectively located on both sides of the transparent test tube (41). The storage chip (44) is electrically connected to the photoelectric sensing unit (43) and the main control chip (5) respectively. The quantitative sampling element (3) is connected to the water storage box (1), at least one reagent kit (2) and the transparent test tube (41) through pipelines, and is used for quantitatively extracting the aquaculture water to be tested and chemical reagents into the transparent test tube (41) for mixing to form a test mixture. The light emitting unit (42) is used for emitting light with a specific wavelength. The photoelectric sensing unit (43) is used for detecting the spectral intensity of the light after passing through the test mixture. The storage chip (44) is used for calculating the content data of the component to be tested according to the detection result of the photoelectric sensing unit (43) and transmitting it to the main control chip (5). The main control chip (5) is used for remotely transmitting the content data of the component to be tested to the data center (100). The main control chip (5) is also electrically connected to the quantitative sampling element (3). The optical parameters and electrical parameters are pre-stored in the storage chip (44). The test box module (4) is integrally packaged and only the pipeline interface and electrical interface are reserved.

2. The on-line water quality testing instrument by spectrometry according to claim 1, characterized in that It further includes a drainage pump (6) electrically connected to the main control chip (5). The drainage pump (6) is connected to the bottom of the transparent test tube (41) through a pipeline, and is used for blowing air into the transparent test tube (41) in the forward direction before the test to fully mix the aquaculture water to be tested and chemical reagents, and is also used for discharging the test mixture in the transparent test tube (41) in the reverse direction after the test is completed.

3. The on-line water quality testing instrument by spectrometry according to claim 2, characterized in that The drainage pump (6) is connected to a cleaning return box (8) and a waste liquid treatment box (9) through a shunt solenoid valve (7). The shunt solenoid valve (7) is electrically connected to the main control chip (5), and is used for connecting the drainage pump (6) and the waste liquid treatment box (9) when discharging the test mixture, and is also used for connecting the drainage pump (6) and the cleaning return box (8) when discharging cleaning water.

4. The on-line water quality testing instrument by spectrometry according to claim 3, characterized in that, A heating module (10) is arranged below the waste liquid treatment box (9). The heating module (10) is electrically connected to the main control chip (5), and is used for heating and evaporating the waste liquid stored in the waste liquid treatment box (9).

5. The on-line water quality testing instrument by spectrometry according to claim 1, characterized in that The reagent kit (2) is installed in a constant temperature box (11).

6. The on-line water quality testing instrument by spectrometry according to claim 1, characterized in that, It further includes a water inlet pump (12) electrically connected to the main control chip (5). The water inlet pump (12) is connected to the aquaculture pond (200) and the water storage box (1) through pipelines, and is used for supplementing the aquaculture water to be tested into the water storage box (1).

7. The on-line water quality testing instrument by spectrometry according to claim 6, wherein, A liquid level monitoring component is arranged in the water storage box (1), and the liquid level monitoring component is electrically connected to the main control chip (5). Before the test, the main control chip (5) is used to control the water inlet pump (12) to start working when the liquid level monitoring device detects that the water level in the water storage box (1) is lower than the first preset value, and is also used to control the water inlet pump (12) to stop working when the liquid level monitoring device detects that the water level in the water storage box (1) is higher than the second preset value, wherein the second preset value is higher than the first preset value.

8. The on-line water quality testing instrument by spectrometry according to claim 1, characterized in that, It further includes a display screen (13) electrically connected to the main control chip (5).

9. The on-line water quality testing instrument by spectrometry according to claim 1, characterized in that, It further includes an alarm module electrically connected to the main control chip (5), and the main control chip (5) is further used to control the alarm module to give an alarm reminder when the content data of the component to be measured is higher than the preset threshold.

10. The on-line water quality testing instrument by spectrometry according to claim 1, wherein It further includes a human-machine interaction unit (14) electrically connected to the main control chip (5).

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