CN215448939U

CN215448939U - Absorption pool for detecting high-concentration ozone

Info

Publication number: CN215448939U
Application number: CN202022820257.5U
Authority: CN
Inventors: 黎冰
Original assignee: Suzhou Honri Airclean Technology Co ltd
Current assignee: Suzhou Honri Airclean Technology Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2022-01-07
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to an absorption cell for detecting high-concentration ozone, which comprises a cell body, wherein the cell body is internally provided with a first emergent light hole and a second emergent light hole; the detector is arranged on the upper end surface of the pool body and covers the first emergent light hole and the second emergent light hole; the lamp holder is arranged at the bottom of the pool body and is provided with a first incident light hole and a second incident light hole; the mercury lamp is arranged in the lamp holder, and ultraviolet rays of the mercury lamp pass through the first incident light hole and the second incident light hole; the light transmission component is arranged inside the tank body; the ozone detector comprises a first incident light hole, a first light transmitting component, a second incident light hole, a second light transmitting component and a second light transmitting hole, wherein the first incident light hole, the second light transmitting component and the first light transmitting hole are communicated, and the second incident light hole is communicated with the second light transmitting hole.

Description

Absorption pool for detecting high-concentration ozone

Technical Field

The utility model relates to an absorption tank, in particular to an absorption tank for detecting high-concentration ozone.

Background

Ozone is widely used in the fields of water treatment, pharmacy, portable flow meters, odor control, food production and the like. In these fields, a large number of ozone analyzers are used, and therefore, there is a high demand for the accuracy of these ozone analyzers.

Ozone is a main participant and motivation for chemical toxicity evolution of pollutants in the air, and is a main monitoring object for predicting the harm of the pollutants in the air. Due to the physical and chemical properties of ozone, the preparation of ozone standard gas cannot be prepared, stored and transported by adopting the traditional preparation method of gas standard substances. The ozone standard gas must be prepared by a method of 'ready-to-use-once-for-use', which increases the difficulty of preparing and storing the ozone standard gas. Ozone itself has strong oxidizing properties and chemical activity, and is both a strong oxidant and a strong catalyst. The method is widely applied to the fields of industrial aging test, sewage treatment, medical and health disinfection and the like. Meanwhile, ozone near the ground surface is an important pollution gas, and researches in recent years find that the atmospheric pollution caused by human activities not only greatly increases the ozone concentration near the ground surface of urban areas, but also has the trend of generally increasing the ozone concentration on the ground surface, and the increase of the ozone concentration on the ground surface is very harmful. All these requirements require the use of ozone analyzers for the quantification of measurements, and the demand for ozone standard generating devices is increasing because the ozone standard gas certified by ozone analyzers must be "ready-to-use.

The prior absorption cell for detecting high-concentration ozone has the following defects:

1. most of ozone analyzers based on the ultraviolet photometry are fixed optical paths, namely, the detection range is certain, if ozone with other concentrations needs to be accurately detected, the ozone analyzers corresponding to the optical paths need to be purchased again, and therefore the ozone analyzers are inconvenient to use and maintain and high in cost.

2. The absorption cell of the existing ozone analyzer based on the ultraviolet photometry is mostly a single light path, and needs to be calibrated frequently, so that the maintenance cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the absorption cell for detecting the high-concentration ozone, which has a simple structure, low processing cost, high measurement precision and can detect the ozone with different concentrations.

In order to achieve the purpose, the utility model adopts the technical scheme that:

due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the absorption cell for detecting high-concentration ozone has the advantages that the device is simple in structure, small in size and low in manufacturing cost, the coincidence distance between ultraviolet rays and sample gas is adjusted by changing the number of the lens gaskets 4 between the incident light lens and the emergent light lens 3, so that ozone with different high concentrations can be detected, and the double-light-path structure is adopted, so that the measurement accuracy is improved, the detection has real-time performance, and the absorption cell has better practicability and popularization value.

Drawings

The technical scheme of the utility model is further explained by combining the accompanying drawings as follows:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an exploded perspective view of the present invention;

FIG. 3 is a transverse cross-sectional view of the present invention;

FIG. 4 is a schematic gas flow diagram of the present invention;

FIG. 5 is a schematic view of a lens spacer;

wherein: 1. a detector; 2. a first O-ring seal; 3. an emergent light lens; 4. a lens spacer; 5. a tetrafluoro retainer ring; 6. a second O-ring seal; 7. a cover plate; 8. mercury lamps; 9. a lamp socket temperature sensor; 10. a lamp socket; 11. a copper pillar; 12. a sample gas temperature sensor; 13. a tank body; 14. a first exit pupil; 15. a second exit pupil; 16. a second incident light aperture; 17. a first incident light aperture; 18. an air outlet; 19. and (4) air inlet holes.

Detailed Description

The utility model is described in further detail below with reference to the figures and the embodiments.

Referring to fig. 1-5, the absorption cell for detecting high concentration ozone according to the present invention includes a cell body 13, a detector 1, a lamp holder 10, a mercury lamp 8 and a light transmission component; the tank body 13 is made of aluminum alloy, the inner surface of the tank body is subjected to corrosion-resistant treatment, a containing cavity is formed in the tank body 13, and the light-transmitting component is arranged in the containing cavity; the cell body 13 is provided with a first emergent light hole 14 and a second emergent light hole 15 which are vertically penetrated, the side wall of the cell body 13 is provided with an air inlet hole 18 and an air outlet hole 19, the air inlet hole 18 and the air outlet hole 19 are provided with quick-screwing nozzles (not shown in the figure), and the cell body 13 is also provided with a sample gas temperature sensor 12 for sensing the temperature of the sample gas.

The detector 1 is disposed on the upper end surface of the cell body 13, and the detector 1 covers the first emergent light hole 14 and the second emergent light hole 15, so that the detector 1 can receive the light source emitted from the first emergent light hole 14 and the second emergent light hole 15.

The lamp holder 10 is installed at the bottom of the pool body 13 through a copper column 11, a first incident light hole 17 and a second incident light hole 16 are arranged on the lamp holder 10, and a lamp holder temperature sensor 9 is arranged on the side wall of the lamp holder 10.

The mercury lamp 8 is arranged on the side surface of the lamp holder 10, and the mercury lamp 8 and the lamp holder temperature sensor 9 are positioned on the same side; the light of the mercury lamp 8 can pass through the first incident light aperture 17 and the second incident light aperture 16, and the mercury lamp 8 has a characteristic line of 254 nm.

The light-transmitting component is arranged in an accommodating cavity of the tank body 13 and comprises an emergent light lens 3, a plurality of lens gaskets 4, an incident light lens 20, a tetrafluoro retainer ring 5, a second O-shaped sealing ring 6 and a cover plate 7 which are sequentially arranged from top to bottom; the cover plate 7 is arranged between the pool body 13 and the lamp holder, and a through hole is formed in the cover plate 7; the lens gasket 4 is made of stainless steel and is circular, and a perspective through hole is formed in the middle of the lens gasket 4; the emergent light lens and the 3 incident light lens are made of JGS1 quartz glass, and the light transmittance at 254nm reaches 95%.

The absorption cell comprises two optical path structures, wherein one optical path structure is that light of a mercury lamp 8 enters from a second incident light hole 16, passes through a second emergent light hole 15 and then irradiates on an ultraviolet light sensor on a detector 1; the other light path structure is that the light of the mercury lamp enters from a first incident light hole 17, passes through a through hole on the cover plate 7, then passes through the incident light lens, the lens gaskets 4 and the emergent light lens 3 in sequence, and then passes through a first emergent light hole 14 and then irradiates on another ultraviolet light sensor on the detector 1.

The absorption cell adopts a double-light-path structure, and the influence of light source attenuation on sampling data can be reduced by comparing the two light-path structures, so that the measurement accuracy is improved, the later calibration is reduced, and the maintenance cost is reduced; simultaneously, the coincidence distance between the ultraviolet ray and the sample gas is adjusted by changing the number of the lens gaskets 4 between the incident light lens and the emergent light lens 3, so that the ozone with different high concentrations can be detected, and the cost is saved under the condition that the ozone concentration is changeable.

In addition, a first O-shaped sealing ring 2 is arranged between the emergent light lens 3 and the first emergent light hole; the second O-ring 6 includes a tetrafluoro collar 5 disposed between the incident light lens and the cover plate 7.

The absorption cell for detecting high-concentration ozone has the advantages of simple structure, small volume and low manufacturing cost, simultaneously adjusts the superposition distance of ultraviolet rays and sample gas by changing the number of the lens gaskets 4 between the incident light lens and the emergent light lens 3, further can detect different high-concentration ozone, and also adopts a double-light-path structure, thereby improving the measurement accuracy, ensuring the detection to have real-time property and better practicability and popularization value.

The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. An absorption cell for detecting high concentration ozone, comprising:

the device comprises a pool body, a first light emitting hole and a second light emitting hole, wherein the first light emitting hole and the second light emitting hole penetrate through the pool body up and down;

a detector; the detector is arranged on the upper end face of the pool body and covers the first emergent light hole and the second emergent light hole;

the lamp holder is arranged at the bottom of the pool body, and a first incident light hole and a second incident light hole are formed in the lamp holder;

a mercury lamp disposed in the lamp holder, and having ultraviolet rays passing through a first incident light hole and a second incident light hole;

the light-transmitting component is arranged inside the tank body;

the first incident light hole, the light transmitting assembly and the first emergent light hole are communicated, and the second incident light hole is communicated with the second emergent light hole.

2. The absorption cell for detecting high concentration ozone according to claim 1, wherein: the light-transmitting component comprises an emergent light lens, a plurality of lens gaskets, an incident light lens, a tetrafluoro check ring, a second O-shaped sealing ring and a cover plate which are sequentially arranged from top to bottom; the cover plate is arranged between the tank body and the lamp holder, and a through hole is formed in the cover plate; the lens gasket is round, and a perspective through hole is formed in the middle of the lens gasket.

3. The absorption cell for detecting high concentration ozone according to claim 1, wherein: a sample gas temperature sensor is also arranged in the pool body.

4. The absorption cell for detecting high concentration ozone according to claim 1, wherein: and a lamp holder temperature sensor is arranged on the side wall of the lamp holder.

5. The absorption cell for detecting high concentration ozone according to claim 1, wherein: and quick screwing nozzles are arranged on the air inlet hole and the air outlet hole.

6. The absorption cell for detecting high concentration ozone according to claim 2, wherein: the lens spacer is made of stainless steel.

7. The absorption cell for detecting high concentration ozone according to claim 1, wherein: the tank body is made of aluminum alloy, and the inner surface of the tank body is subjected to corrosion-resistant treatment.

8. The absorption cell for detecting high concentration ozone according to claim 2, wherein: the emergent light lens and the incident light lens are made of JGS1 quartz glass, and the light transmittance at 254nm reaches 95%.