Spectral water quality detection device with chemical self-calibration function

Abstract

The utility model discloses a spectrum method water quality detection device for self-calibration by using a chemical method. The spectrum method water quality detection device comprises a flow path sampling unit, a full-spectrum water quality detection unit, a chemical digestion unit and a bottom plate, all the units are fixedly installed on a bottom plate, the full-spectrum water quality detection unit and the chemical digestion unit share a digestion pool, and the water quality on-line monitoring device can achieve water quality on-line monitoring through a spectrum method and can also achieve water quality calibration through a chemical method.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality monitoring devices, especially to a kind of with chemical method self-calibration spectrographic water quality detection device. BACKGROUND

[0002] Spectrographic water quality monitoring equipment is gradually accepted by market with fast detection speed, non-pollution in detection process and low maintenance cost.In recent years, the fundamental reason that spectrographic water quality detection equipment is widely used is that the detection accuracy of spectrographic equipment is low due to lack of calibration data, so how to calibrate spectrographic water quality detection equipment in time and effectively is a difficult problem faced by many enterprises. UTILITY MODEL CONTENT

[0003] The utility model aims at a kind of spectrographic water quality detection device with chemical calibration, solves the problem of spectrographic equipment calibration, realizes the stable and accurate calibration of spectrographic equipment, and has important significance for improving spectrographic water quality detection accuracy.

[0004] Technical scheme: a kind of spectrographic water quality detection device with chemical method self-calibration, including flow path sampling unit, full-spectrum water quality detection unit, chemical digestion unit and bottom plate;The flow path sampling unit, full-spectrum water quality detection unit, chemical digestion unit are all fixedly installed on the bottom plate, and the full-spectrum water quality detection unit and the chemical digestion unit share digestion tank.

[0005] Further, the road sampling unit includes plunger pump, liquid storage pipe, valve group, liquid inlet pipe and independent liquid suction pipe;One end of the liquid storage pipe is connected with plunger pump, and the other end is connected with the public port one of valve group;One end of the liquid inlet pipe is connected with the public port two of valve group, and the other end is connected with lower high-pressure valve;The independent liquid suction pipe is independently connected with independent valve body on valve group.

[0006] Further, the chemical digestion unit includes upper fixed plate, upper high-pressure valve, right side plate, digestion tank, lower pressure plate, lower high-pressure valve, lower fixed plate, left side plate and upper pressure plate;The upper high-pressure valve is fixedly installed on the upper fixed plate by screw thread;The upper fixed plate is fixedly installed on the upper pressure plate by screw thread, and the upper high-pressure valve is tightly sealed with the upper pressure plate;The lower high-pressure valve is fixedly installed on the lower fixed plate by screw thread;The lower fixed plate is fixedly installed on the lower pressure plate by screw thread, and the lower high-pressure valve is tightly sealed with the lower pressure plate;The left side plate and the right side plate are tightly installed on the upper pressure plate and the lower pressure plate respectively, and the upper and lower ports of the digestion tank are tightly sealed with the upper pressure plate and the lower pressure plate respectively;After the digestion tank is tightly installed, the upper and lower ports are communicated with the upper high-pressure valve and the lower high-pressure valve respectively.

[0007] Further, the full-spectrum water quality detection unit comprises a light source, a light source connecting seat, a focusing mirror, a first optical fiber, an attenuator, a second optical fiber, a front collimating mirror, a rear collimating mirror, a third optical fiber and a spectrometer; the front end of the focusing mirror is fixedly connected to the light source through the light source connecting seat; the front end of the attenuator is connected to the focusing mirror through the first optical fiber, and the rear end is connected to the front end of the front collimating mirror through the second optical fiber; the rear end of the front collimating mirror is fixedly installed on the left side plate in a threaded mode; the front end of the rear collimating mirror is fixedly installed on the right side plate in a threaded mode, and the rear end is connected to the spectrometer through the third optical fiber.

[0008] Further, the detection process of the full-spectrum water quality detection unit is performed at different times from the chemical digestion process of the chemical digestion unit.

[0009] Further, the wavelength range of the light source of the full-spectrum water quality detection unit covers the wavelength range required by the chemical detection.

[0010] The utility model discloses a beneficial effect: the utility model discloses can adopt spectrographic method or chemical method detection water quality index at different times, can simultaneously uninterrupted adopt the accurate value of chemical method detection, and the spectral curve is convenient for the calibration of quick, improves the accuracy of spectrographic method water quality detection, effectively solves the problem that spectrographic method water quality detection equipment calibration data is difficult to obtain. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the overall structure schematic diagram provided by the utility model.

[0012] Figure 2 It is the structure schematic diagram of road sample unit.

[0013] Figure 3 It is the structure schematic diagram of chemical digestion unit.

[0014] Figure 4 It is the structure schematic diagram of full-spectrum water quality detection unit.

[0015] Figures 1 to 4 In each mark in, the flow path sample unit 1, the bottom plate 2, the chemical digestion unit 3, the full-spectrum water quality detection unit 4, the plunger pump 1-1, the liquid storage pipe 1-2, the valve group 1-3, the liquid inlet pipe 1-4, the independent liquid suction pipe 1-5, the upper fixed plate 3-1, the upper high-pressure valve 3-2, the right side plate 3-3, the digestion tank 3-4, the lower pressing plate 3-5, the lower high-pressure valve 3-6, the lower fixed plate 3-7, the left side plate 3-8, the upper pressing plate 3-9, the light source 4-1, the light source connecting seat 4-2, the focusing mirror 4-3, the optical fiber 4-4, the attenuator 4-5, the optical fiber 4-6, the front collimating mirror 4-7, the rear collimating mirror 4-8, the optical fiber 4-9, the spectrometer 4-10. DETAILED DESCRIPTION

[0016] A spectrographic method water quality detection device for self-calibration by chemical method, as shown in Figure 1As shown, including flow path sampling unit 1, full spectrum water quality detection unit 4, chemical digestion unit 3 and bottom plate 2;The flow path sampling unit 1, full spectrum water quality detection unit 4, chemical digestion unit 3 are all fixedly installed on the bottom plate 2, and the full spectrum water quality detection unit 4 shares the digestion tank 3-4 with the chemical digestion unit 3.

[0017] As shown in the figure, Figure 2 As shown, the road sampling unit 1 includes plunger pump 1-1, liquid storage pipe 1-2, valve group 1-3, liquid inlet pipe 1-4 and independent liquid suction pipe 1-5;The liquid storage pipe 1-2 is connected to the plunger pump 1-1 at one end, and the other end is connected to the common port one of the valve group 1-3;The liquid inlet pipe 1-4 is connected to the common port two of the valve group 1-3 at one end, and the other end is connected to the lower high pressure valve 3-6;The independent liquid suction pipe 1-5 is independently connected to the independent valve body on the valve group 1-3.

[0018] As shown in the figure, Figure 3 As shown, the chemical digestion unit 3 includes upper fixed plate 3-1, upper high pressure valve 3-2, right side plate 3-3, digestion tank 3-4, lower pressure plate 3-5, lower high pressure valve 3-6, lower fixed plate 3-7, left side plate 3-8 and upper pressure plate 3-9;The upper high pressure valve 3-2 is threadedly fixedly installed on the upper fixed plate 3-1;The upper fixed plate 3-1 is threadedly installed on the upper pressure plate 3-9, and the upper high pressure valve 3-2 is pressed and sealed with the upper pressure plate 3-9;The lower high pressure valve 3-6 is threadedly fixedly installed on the lower fixed plate 3-7;The lower fixed plate 3-7 is threadedly installed on the lower pressure plate 3-5, and the lower high pressure valve 3-6 is pressed and sealed with the lower pressure plate 3-5;The left side plate 3-8 and the right side plate 3-3 are respectively pressed and installed on the upper pressure plate 3-9 and the lower pressure plate 3-5, and the upper and lower ports of the digestion tank 3-4 are respectively pressed and sealed with the upper pressure plate 3-9 and the lower pressure plate 3-5;After the digestion tank 3-4 is pressed and installed, the upper and lower ports are respectively communicated with the upper high pressure valve 3-2 and the lower high pressure valve 3-6.

[0019] As shown in the figure, Figure 4 As shown, the full spectrum water quality detection unit 4 includes light source 4-1, light source connecting seat 4-2, focusing mirror 4-3, optical fiber one 4-4, attenuator 4-5, optical fiber two 4-6, front collimating mirror 4-7, rear collimating mirror 4-8, optical fiber three 4-9 and spectrometer 4-10;The front end of the focusing mirror 4-3 is fixedly connected to the light source 4-1 through the light source connecting seat 4-2;The front end of the attenuator 4-5 is connected to the focusing mirror 4-3 through the optical fiber one 4-4, and the rear end is connected to the front end of the front collimating mirror 4-7 through the optical fiber two 4-6;The rear end of the front collimating mirror 4-7 is threadedly fixedly installed on the left side plate 3-8;The front end of the rear collimating mirror 4-8 is threadedly fixedly installed on the right side plate 3-3, and the rear end is connected to the spectrometer 4-10 through the optical fiber three 4-9.

[0020] The specific working mode of the utility model is:

[0021] 1. Flow path sampling unit 1, sample water to be tested into digestion tank 3-4;

[0022] 2. Start full spectrum water quality detection unit 4, measure the full spectrum data of the water sample, and calculate the water quality index value;

[0023] 3. If the device needs to be calibrated, after step 2 is completed, the flow path sampling unit 1 samples the digestion reagent into the digestion tank 3-4 again;

[0024] 4. Start the chemical digestion unit 3 to digest the mixed water sample in the digestion tank 3-4;

[0025] 5. Full spectrum water quality detection unit 4 again, select the chemical wavelength point to obtain its light intensity value;

[0026] 6. Calculate the chemical index value;

[0027] 7. Calibrate the full spectrum curve with the chemical index value to form a spectral water quality model;

[0028] 8. If calibration is not required, directly detect the full spectrum and calculate the water quality index based on the existing calibration model.

Claims

1. A spectroscopic water quality detection device that is self-calibrated using chemical methods, characterized in that, include: The sample injection unit (1), the full-spectrum water quality detection unit (4), the chemical digestion unit (3) and the base plate (2) are all fixedly installed on the base plate (2). The full-spectrum water quality detection unit (4) and the chemical digestion unit (3) share a digestion tank (3-4).

2. The spectroscopic water quality detection device with chemical self-calibration according to claim 1, characterized in that, The flow path injection unit (1) includes: a plunger pump (1-1), a liquid storage tube (1-2), a valve assembly (1-3), an inlet tube (1-4), and an independent suction tube (1-5). The liquid storage pipe (1-2) is connected to the plunger pump (1-1) at one end and to the common port one of the drain valve group (1-3) at the other end; the liquid inlet pipe (1-4) is connected to the common port two of the drain valve group (1-3) at one end and to the lower high pressure valve (3-6) at the other end; the independent liquid extraction pipe (1-5) is independently connected to the independent valve body on the drain valve group (1-3).

3. The spectroscopic water quality detection device with chemical self-calibration according to claim 1, characterized in that, The chemical digestion unit (3) includes: an upper fixed plate (3-1), an upper high-pressure valve (3-2), a right side plate (3-3), a digestion tank (3-4), a lower pressure plate (3-5), a lower high-pressure valve (3-6), a lower fixed plate (3-7), a left side plate (3-8), and an upper pressure plate (3-9). The upper high-pressure valve (3-2) is fixedly installed on the upper fixed plate (3-1); the upper fixed plate (3-1) is installed on the upper pressure plate (3-9), and the upper high-pressure valve (3-2) is pressed and sealed with the upper pressure plate (3-9); the lower high-pressure valve (3-6) is fixedly installed on the lower fixed plate (3-7); the lower fixed plate (3-7) is installed on the lower pressure plate (3-5), and the lower high-pressure valve (3-6) is pressed and sealed with the lower pressure plate (3-5); the left side plate (3-8) and the right side plate (3-3) are respectively pressed and installed with the upper pressure plate (3-9) and the lower pressure plate (3-5), and the upper and lower openings of the digestion tank (3-4) are respectively pressed and sealed with the upper pressure plate (3-9) and the lower pressure plate (3-5); after the digestion tank (3-4) is pressed and installed, the upper and lower openings are connected to the upper high-pressure valve (3-2) and the lower high-pressure valve (3-6) respectively.

4. The spectroscopic water quality detection device with chemical self-calibration according to claim 1, characterized in that, The full-spectrum water quality detection unit (4) includes: a light source (4-1), a light source connector (4-2), a focusing lens (4-3), an optical fiber one (4-4), an attenuator (4-5), an optical fiber two (4-6), a front collimator (4-7), a rear collimator (4-8), an optical fiber three (4-9), and a spectrometer (4-10). The front end of the focusing lens (4-3) is fixedly connected to the light source (4-1) via the light source connector (4-2); the front end of the attenuator (4-5) is connected to the focusing lens (4-3) via fiber optic cable one (4-4), and the rear end is connected to the front end of the front collimator (4-7) via fiber optic cable two (4-6); the rear end of the front collimator (4-7) is fixedly mounted on the left side plate (3-8); the front end of the rear collimator (4-8) is fixedly mounted on the right side plate (3-3), and the rear end is connected to the spectrometer (4-10) via fiber optic cable three (4-9).

5. The spectroscopic water quality detection device with chemical self-calibration according to claim 1, characterized in that, The detection process of the full-spectrum water quality detection unit (4) and the chemical digestion process of the chemical digestion unit (3) are carried out at different times.

6. The spectroscopic water quality detection device with chemical self-calibration according to claim 1, characterized in that, The light source (4-1) of the full-spectrum water quality detection unit (4) covers the wavelength range required for chemical detection.

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