Analyzing instrument for detecting concentration of dissolved ozone water according to ultraviolet spectrum principle

Abstract

The utility model provides an analytical instrument for detecting the concentration of dissolved ozone water according to an ultraviolet spectrum principle, which comprises a dissolved ozone water analyzer water inlet, an ozone water detection sensor and an ozone water flowmeter, the ozone water detection sensor is formed by combining an ultraviolet LED light source, an ultraviolet light lens, a refraction sheet, a reference light photoelectric receiver, a polytetrafluoroethylene detection chamber, a sapphire lens, a sensor water inlet, a sensor water outlet and a sampling light photoelectric receiver, and the sensor water inlet is communicated and connected with a water inlet of the dissolved ozone water analyzer through a first three-way connector; according to the design, the problems of low ozone concentration measurement accuracy and short service life in the prior art are solved, the concentration of ozone dissolved water can be accurately measured through the ultraviolet spectrum principle and the double-light-path detection technology, and the zero point automatic correction function is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an analytical instrument for detecting dissolved ozone water concentration based on ultraviolet spectrum principle, and belongs to the technical field of ozone water concentration analysis equipment. BACKGROUND

[0002] Oxygen, as a strong oxidant, is widely used in water treatment, medical disinfection, food processing, semiconductor manufacturing and other fields. The accurate measurement of ozone water concentration is crucial to ensure its effectiveness and safety. Traditional electrochemical principle ozone concentration analyzers have problems such as short service life, poor linearity, low precision, etc., while the detector based on ultraviolet spectrum principle can more accurately measure ozone concentration through the absorption characteristics of ultraviolet light and is not disturbed by other wavelengths of ultraviolet light. There is an urgent need for an analytical instrument for detecting dissolved ozone water concentration based on ultraviolet spectrum principle to solve the above problems. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model aims to provide an analytical instrument for detecting dissolved ozone water concentration based on ultraviolet spectrum principle to solve the problems raised in the background art. The utility model can solve the problems of low ozone concentration measurement accuracy and short service life in the prior art through the double light path detection principle and zero point automatic correction function.

[0004] To achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: an analytical instrument for detecting dissolved ozone water concentration based on ultraviolet spectrum principle, comprising a dissolved ozone water analyzer water inlet, an ozone water detection sensor and an ozone water flowmeter. The ozone water detection sensor is composed of an ultraviolet LED light source, an ultraviolet light lens, a prism, a reference light photoreceiver, a polytetrafluoroethylene detection chamber, a sapphire lens, a sensor water inlet, a sensor water outlet and a sampling light photoreceiver. The sensor water inlet is connected to the dissolved ozone water analyzer water inlet through a first three-way connector. The sensor water outlet is connected to the ozone water flowmeter through a second three-way connector. The sampling light photoreceiver is embedded in the right side of the right side of the polytetrafluoroethylene detection chamber. The reference light photoreceiver is embedded in the middle below the polytetrafluoroethylene detection chamber. The prism is inclinedly fixed in the middle of the polytetrafluoroethylene detection chamber. The ultraviolet LED light source and the ultraviolet light lens are installed at the left end of the polytetrafluoroethylene detection chamber. The sapphire lens is provided with two, and the two sapphire lenses are fixed in the right end of the polytetrafluoroethylene detection chamber by perfluoroether rubber sealing.

[0005] Further, the first three-way connector is connected to the second three-way connector through a bent pipe.

[0006] Further, the ozone water flowmeter outlet is connected to the dissolved ozone water analyzer outlet.

[0007] Further, the two sapphire lenses are separated into a sealed cavity, and the sensor water inlet is arranged at the rear side of the sealed cavity, and the sensor water outlet is arranged above the sealed cavity.

[0008] Further, the sampling light photoelectric receiver is arranged at the right side of the two sapphire lenses, the two sapphire lenses are arranged at the right side of the light splitting piece, the ultraviolet light lens is arranged at the left side of the light splitting piece, and the ultraviolet LED light source is arranged at the left side of the ultraviolet light lens.

[0009] Further, the reference light photoelectric receiver is arranged below the light splitting piece.

[0010] The analysis instrument for detecting the dissolved ozone water concentration by the ultraviolet spectrum principle has the advantages that: the ozone water detection sensor, the ozone water flow meter, the ultraviolet LED light source, the ultraviolet light lens, the light splitting piece, the reference light photoelectric receiver, the polytetrafluoroethylene detection chamber, the sapphire lens and the sampling light photoelectric receiver are added, the design improvement and the actual use show that the device has the advantages of reasonable structure, good practicability, accurate measurement of the dissolved ozone water concentration by the ultraviolet spectrum principle and the double light path detection technology, zero point automatic correction function, avoidance of the problems of short service life and low precision of the traditional electrochemical principle analyzer, simple structure, convenient installation and maintenance, wide application prospect and suitability for various water quality environments. BRIEF DESCRIPTION OF DRAWINGS

[0011] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings:

[0012] Figure 1 It is a whole structure perspective view of the analysis instrument for detecting the dissolved ozone water concentration by the ultraviolet spectrum principle.

[0013] Figure 2 It is a sectional view of the analysis instrument for detecting the dissolved ozone water concentration by the ultraviolet spectrum principle.

[0014] In the figure: 1 is a dissolved ozone water analyzer water inlet, 2 is a first three-way connector, 3 is an ozone water detection sensor, 4 is a second three-way connector, 5 is an ozone water flow meter, 6 is a dissolved ozone water analyzer water outlet, 10 is an ultraviolet LED light source, 11 is an ultraviolet light lens, 12 is a light splitting piece, 13 is a reference light photoelectric receiver, 14 is a polytetrafluoroethylene detection chamber, 15 is a sapphire lens, 16 is a sensor water inlet, 17 is a sensor water outlet, and 18 is a sampling light photoelectric receiver. DETAILED DESCRIPTION

[0015] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0016] Please refer to Figures 1-2 The utility model provides a technical scheme: a kind of analytical instrument of dissolved ozone water concentration of ultraviolet spectrum principle detection, including dissolved ozone water analyzer water inlet 1, ozone water detection sensor 3 and ozone water flowmeter 5, ozone water detection sensor 3 is by ultraviolet LED light source 10, ultraviolet light lens 11, light slice 12, reference light photoelectric receiver 13, polytetrafluoroethylene detection chamber 14, sapphire lens 15, sensor water inlet 16, sensor water outlet 17 and sampling light photoelectric receiver 18 combination constitute, sensor water inlet 16 is connected with dissolved ozone water analyzer water inlet 1 by first three-way connector 2, sensor water outlet 17 is connected with ozone water flowmeter 5 by second three-way connector 4, sampling light photoelectric receiver 18 is sealedly embedded in right polytetrafluoroethylene detection chamber 14 right side, reference light photoelectric receiver 13 is sealedly embedded in polytetrafluoroethylene detection chamber 14 below middle, light slice 12 is obliquely fixed in polytetrafluoroethylene detection chamber 14 inside middle, ultraviolet LED light source 10 and ultraviolet light lens 11 are installed in polytetrafluoroethylene detection chamber 14 inside left end, sapphire lens 15 is provided with two, two sapphire lens 15 is sealedly fixed in polytetrafluoroethylene detection chamber 14 inside right end by perfluoroether rubber, the design solves the problem of low ozone concentration measurement accuracy, short life in prior art.

[0017] As the first embodiment of the utility model: first three-way connector 2 upper end is connected with second three-way connector 4 by bending pipe, by adding first three-way connector 2 upper end is connected with second three-way connector 4 by bending pipe, ozone water bubbles in first three-way connector 2 can be effectively discharged to second three-way connector 4, so that ozone water in first three-way connector 2 can enter ozone water detection sensor 3 by horizontal mode.

[0018] The ozone water flowmeter 5 is connected with the ozone water dissolving analyzer water outlet 6, the ozone water flow can be controlled at 200-400 mL / min through the added ozone water flowmeter 5, the two sapphire lenses 15 are separated into a sealed cavity, the sensor water inlet 16 is arranged at the rear side of the sealed cavity, the sensor water outlet 17 is arranged above the sealed cavity, the nitric acid and hydrofluoric acid in the ozone water solution are selected to use the sapphire lens 15 for corrosion resistance (if the ozone water solution does not contain nitric acid and hydrofluoric acid, the quartz lens can be selected). The sampling light photoelectric receiver 18 is arranged at the right side of the two sapphire lenses 15, the two sapphire lenses 15 are arranged at the right side of the light folding sheet 12, the ultraviolet light lens 11 is arranged at the left side of the light folding sheet 12, the ultraviolet LED light source 10 is arranged at the left side of the ultraviolet light lens 11, and the reference light photoelectric receiver 13 is arranged below the light folding sheet 12.

[0019] As a second embodiment of the utility model: as Figure 1 Indicated, the ozone water dissolving analyzer water inlet 1, the ozone water dissolving analyzer water outlet 6 used joint, pipeline, first three-way connector 2 and second three-way connector 4 select polytetrafluoroethylene (PTEF), soluble polytetrafluoroethylene (PFA) non-metallic products, the light transmission material in the polytetrafluoroethylene detection chamber 14 should select sapphire lens 15 or quartz lens, and the sealing material should select perfluoroether rubber (FFKM, FFPM), which can effectively prevent the oxidation of ozone water.

[0020] As Figure 2 Indicated, the ultraviolet LED light source 10 in the ozone water detection sensor 3 adopts narrow-band (254nm) wavelength ultraviolet lamp tube, according to the performance of the ultraviolet lamp tube, 254nm narrow-band ultraviolet filter or ultraviolet light lens 11 can be installed; the ultraviolet light generated by the ultraviolet LED light source 10 is irradiated in the form of parallel light to the right, a part of light is refracted after passing through the 45-degree light folding sheet 12 to change into 90-degree light beam, and the reference light photoelectric receiver 13 is used to sense the brightness of the ultraviolet light; another part of light passes through the light folding sheet 12, the polytetrafluoroethylene detection chamber 14 (absorbed by ozone) and the sapphire lens 15, and finally passes through the sampling light photoelectric receiver 18 to sense the brightness of the ultraviolet light after being absorbed by ozone gas, through the structure of double light paths, according to Lambert Beer law, the concentration of ozone can be calculated through the single-chip microcomputer and program in the signal processing mainboard.

[0021] As Figure 2As shown, the ozone water detection sensor 3 in the dissolved ozone water analyzer carries out zero correction in the case of passing in the ozone-free water solution, the dissolved ozone water analyzer will record the value of the reference light photoelectric receiver 13, and then pass in the solution containing ozone water, based on the Beer-Lambert law, according to the double light path ultraviolet spectrum principle, the ozone water concentration is analyzed and detected, when the ultraviolet LED light source 10 is affected by the external environment and changes, the system of the dissolved ozone water analyzer will adjust the brightness value of the ultraviolet LED light source 10 in real time according to the data value when the reference light photoelectric receiver 13 is zeroed, the zero value of the dissolved ozone water analyzer is controlled within a certain range, effectively avoiding the zero deviation, so as to improve the accuracy of the ozone water concentration.

[0022] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. An analytical instrument for detecting dissolved ozone concentration based on ultraviolet spectroscopy, comprising a dissolved ozone water analyzer inlet (1), an ozone water detection sensor (3), and an ozone water flow meter (5), characterized in that: The ozone water detection sensor (3) is composed of an ultraviolet LED light source (10), an ultraviolet light lens (11), a light splitting sheet (12), a reference light photoelectric receiver (13), a polytetrafluoroethylene detection chamber (14), a sapphire lens (15), a sensor water inlet (16), a sensor water outlet (17), and a sampling light photoelectric receiver (18). The sensor water inlet (16) is connected to the water inlet (1) of the dissolved ozone water analyzer through the first three-way connector (2), the sensor water outlet (17) is connected to the ozone water flow meter (5) through the second three-way connector (4), the sampling light photoelectric receiver (18) is embedded in the right side of the polytetrafluoroethylene detection chamber (14), the reference light photoelectric receiver (13) is embedded in the middle below the polytetrafluoroethylene detection chamber (14), the light splitting sheet (12) is fixed obliquely in the middle of the polytetrafluoroethylene detection chamber (14), the ultraviolet LED light source (10) and the ultraviolet light lens (11) are installed at the left end of the polytetrafluoroethylene detection chamber (14), and the two sapphire lenses (15) are fixed by perfluoroether rubber at the right end of the polytetrafluoroethylene detection chamber (14).

2. The analytical instrument for detecting the concentration of dissolved ozone water based on the principle of ultraviolet spectrum according to claim 1, characterized in that: The first three-way connector (2) is connected to the second three-way connector (4) through a bent pipe.

3. The analytical instrument for detecting the concentration of dissolved ozone water based on the principle of ultraviolet spectrum according to claim 1, characterized in that: The ozone water flow meter (5) is connected to the water outlet (6) of the dissolved ozone water analyzer.

4. The analytical instrument for detecting the concentration of dissolved ozone water based on the principle of ultraviolet spectrum according to claim 1, characterized in that: The two sapphire lenses (15) form a sealed cavity, and the sensor water inlet (16) is arranged on the back side of the sealed cavity, and the sensor water outlet (17) is arranged above the sealed cavity.

5. The analytical instrument for detecting the concentration of dissolved ozone water based on the principle of ultraviolet spectrum according to claim 1, characterized in that: The sampling light photoelectric receiver (18) is arranged right in front of the two sapphire lenses (15), the two sapphire lenses (15) are arranged right in front of the light splitting sheet (12), the ultraviolet light lens (11) is arranged left in front of the light splitting sheet (12), and the ultraviolet LED light source (10) is arranged left in front of the ultraviolet light lens (11).

6. The analytical instrument for detecting the concentration of dissolved ozone water based on the principle of ultraviolet spectrum according to claim 1, characterized in that: The reference light photoelectric receiver (13) is arranged directly below the light splitting sheet (12).

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