CN214252022U - Gas detection gas mixing device and gas detection device by chemiluminescence method - Google Patents
Gas detection gas mixing device and gas detection device by chemiluminescence method Download PDFInfo
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- CN214252022U CN214252022U CN202023289419.3U CN202023289419U CN214252022U CN 214252022 U CN214252022 U CN 214252022U CN 202023289419 U CN202023289419 U CN 202023289419U CN 214252022 U CN214252022 U CN 214252022U
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Abstract
The embodiment of the utility model discloses gaseous gas detection of chemiluminescence method mixes gas device and gaseous detection device relates to gaseous detection technical field gaseous detection of chemiluminescence method mixes gas device and includes outer tube, interior sleeve pipe, outer tube cap and reacting chamber. The outer tube is connected with a first gas inlet, the inner tube is connected with a second gas inlet, the outer tube cap is arranged in the reaction chamber and comprises a premixing chamber, and the side wall of the premixing chamber is provided with a through hole communicated with the reaction chamber. The inner sleeve is arranged in the outer sleeve, and the inner sleeve and the outer sleeve are both inserted into the premixing chamber of the outer sleeve cap. Therefore, the ozone entering from the first inlet and the nitrogen oxide entering from the second inlet are fully mixed in the premixing chamber and then flow into the reaction chamber through the through hole on the premixing chamber. Through the above structural design, the nitrogen oxide and the ozone can be mixed more uniformly, so that the detection accuracy is improved.
Description
Technical Field
The utility model relates to a gaseous technical field that detects especially relates to a gaseous gas mixing device and gaseous detection device that detect of chemiluminescence method.
Background
Nitrogen oxides (NOx) are primarily a collective term for NO and NO2 produced by the combustion of substances. A large amount of nitrogen oxides are generated during the combustion and use of fossil fuels such as coal, petroleum and the like. The exhaust gases from the combustion of automobiles (including all internal combustion engines) and the flue gases from plants producing or using nitric acid are currently the major sources of nitrogen oxide pollution. On one hand, NOx discharged into the atmosphere is dissolved in water to form acid rain; on the other hand, when NOx and hydrocarbon coexist in the air, a photochemical reaction occurs by irradiation of sunlight ultraviolet rays, and a photochemical smog, which is a toxic secondary pollutant, is generated.
The traditional method for measuring the nitrogen oxide comprises a naphthyl ethylenediamine hydrochloride colorimetric method, an electrochemical method, a laser-induced fluorescence method, a chemiluminescence method, a differential absorption spectrometry method and the like, and compared with other detection methods, the chemiluminescence method has the advantages of high measurement precision, short response time, high sensitivity, stability, reliability and the like, and becomes the mainstream method for measuring the nitrogen oxide at present.
However, in the current chemiluminescence method, in a reaction chamber of an analyzer, the gas stroke is short, nitrogen oxide and ozone are directly sucked into the reaction chamber and mixed in the reaction chamber, the ozone and the nitrogen oxide are not sufficiently mixed, so that the chemical reaction is insufficient, the fluorescence efficiency is not high, and the detected nitrogen oxide concentration is not particularly accurate.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem that will solve is in the reacting chamber of current analysis appearance, and ozone and nitrogen oxide mix insufficient problem.
In order to solve the above problem, in a first aspect, an embodiment of the present invention provides a gas mixing device for gas detection by a chemiluminescence method, where the gas mixing device for gas detection by a chemiluminescence method includes an outer sleeve, an inner sleeve, an outer sleeve cap, and a reaction chamber; the inner sleeve is arranged in the outer sleeve, the outer sleeve is connected with the first gas inlet, and the inner sleeve is connected with the second gas inlet; the outer sleeve cap is arranged in the reaction chamber and comprises a premixing chamber, and the side wall of the premixing chamber is provided with a through hole communicated with the reaction chamber; the inner sleeve and the outer sleeve are inserted into the premixing chamber of the outer sleeve cap.
The further technical proposal is that a gap is arranged between the inner sleeve and the inner wall of the outer sleeve.
The further technical proposal is that the outer sleeve is connected with a first gas inlet through a first gas pipeline.
The further technical scheme is that the inner sleeve is connected with a second gas inlet through a second gas pipeline.
The further technical proposal is that the inner wall of the reaction chamber is plated with gold.
The further technical proposal is that the reaction chamber is provided with a fluorescence outlet which is used for being connected with a PMT detection tube.
The further technical proposal is that a filter is arranged in the fluorescent outlet.
The gas detection and mixing device adopting the chemiluminescence method further comprises an exhaust port, a waste gas outlet is formed in the reaction chamber, and the waste gas outlet is connected with the exhaust port.
The further technical proposal is that an air pump is arranged in the exhaust port.
In a second aspect, an embodiment of the present invention provides a gas detection apparatus, which includes a gas mixing device for gas detection by chemiluminescence method according to the first aspect.
Compared with the prior art, the embodiment of the utility model provides a technical effect that can reach includes:
the embodiment of the utility model discloses gaseous gas mixing device that detects of chemiluminescence method. The gas mixing device for gas detection by the chemiluminescence method comprises an outer sleeve, an inner sleeve, an outer sleeve cap and a reaction chamber. Interior sleeve pipe is connected with first gas inlet, and the outer tube is connected with second gas inlet, and the outer tube cap setting is in the reaction chamber, and the outer tube cap mixes the chamber including mixing in advance, mixes the lateral wall of chamber in advance and is equipped with the through-hole that communicates the reaction chamber. The inner sleeve is arranged in the outer sleeve, and the inner sleeve and the outer sleeve are both inserted into the premixing chamber of the outer sleeve cap. Therefore, the nitrogen oxide entering from the first inlet and the ozone entering from the second inlet are fully mixed in the premixing chamber and then flow into the reaction chamber through the through hole on the premixing chamber. Through the above structural design, the nitrogen oxide and the ozone can be mixed more uniformly, so that the detection accuracy is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic cross-sectional view of a gas mixing device for gas detection by chemiluminescence method according to an embodiment of the present invention along the direction a-a in fig. 2;
fig. 2 is a schematic cross-sectional view of a gas mixing device for gas detection by chemiluminescence method according to an embodiment of the present invention, taken along the direction B-B in fig. 1;
fig. 3 is a perspective view of a gas mixing device for gas detection by chemiluminescence method according to an embodiment of the present invention;
fig. 4 is a side view of a gas mixing device for gas detection by chemiluminescence method according to an embodiment of the present invention.
Reference numerals
The device comprises an outer sleeve 1, an inner sleeve 2, an outer sleeve cap 3, a reaction chamber 4, a first gas inlet 5, a second gas inlet 6, an exhaust gas outlet 7, a premixing chamber 8, a through hole 9, a first gas pipeline 10, a second gas pipeline 11, a fluorescence outlet 12, a light filter 13 and an exhaust port 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, wherein like component numbers represent like components. It is obvious that the embodiments to be described below are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the embodiments of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the description of the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Referring to fig. 1-4, an embodiment of the present invention provides a gas mixing device for gas detection by a chemiluminescence method. As can be seen from the figure, the gas mixing device for gas detection by chemiluminescence method comprises an outer sleeve 1, an inner sleeve 2, a cap 3 of the outer sleeve 1 and a reaction chamber 4. The connection fit relation of the above devices is as follows:
the outer jacket 1 is connected to a first gas inlet 5, in particular, in this embodiment, the first gas inlet 5 is a nitrogen oxide gas inlet, such as NO. The inner sleeve 2 is connected to a second gas inlet 6, in particular, in this embodiment, the second gas inlet 6 is an ozone gas inlet.
The outer sleeve 1 and the cap 3 are arranged in the reaction chamber 4, the outer sleeve 1 and the cap 3 comprise a premixing chamber 8, and the side wall of the premixing chamber 8 is provided with a through hole 9 communicated with the reaction chamber 4. The inner sleeve 2 is arranged inside the outer sleeve 1, and both the inner sleeve 2 and the outer sleeve 1 are inserted into the premixing chamber 8 of the cap 3 of the outer sleeve 1. Thus, the nitrogen oxide entering from the first inlet and the nitrogen oxide entering from the second inlet are sufficiently mixed in the premixing chamber 8, and then flow into the reaction chamber 4 through the through hole 9 of the premixing chamber 8. Through the above structural design, the nitrogen oxide and the ozone can be mixed more uniformly, so that the detection accuracy is improved.
Further, a gap is formed between the inner tube 2 and the inner wall of the outer tube 1, so that the gas in the outer tube 1 can flow smoothly.
Further, the reaction chamber 4 is provided with a fluorescence outlet 12, and the fluorescence outlet 12 is used for connecting with a PMT detection tube. A filter 13 is provided in the fluorescent light outlet 12. The stray light can be filtered by the optical filter 13, so that the detection accuracy is improved.
Furthermore, the inner wall of the reaction chamber 4 is plated with gold, so that part of fluorescence generated by chemiluminescence and not directly emitted to the PMT detection tube can be detected by the photomultiplier after multiple emissions, thereby improving the fluorescence efficiency and improving the detection accuracy of the concentration of nitric oxide.
Further, the gas detection and mixing device adopting the chemiluminescence method further comprises an exhaust port 14, the reaction chamber 4 is provided with a waste gas outlet 7, the waste gas outlet 7 is connected with the exhaust port 14, and an air pump is arranged in the exhaust port 14. Through the aspiration pump, can be clean with the exhaust extraction, avoid producing the influence to next detection.
Further, the outer sleeve 1 is connected with a first gas inlet 5 through a first gas pipeline 10; the inner jacket tube 2 is connected to the second gas inlet 6 via a second gas line 11. It will be appreciated that the connections between the above-described conduits need to be sealed to avoid air leakage.
The embodiment of the utility model provides a still provide a gaseous detection device, this gaseous detection device includes the gaseous gas detection of chemiluminescence method that the above embodiment provided and mixes the gas device.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, while the invention has been described with respect to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
The above description is for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A gas mixing device for gas detection by a chemiluminescence method is characterized by comprising an outer sleeve, an inner sleeve, an outer sleeve cap and a reaction chamber; the inner sleeve is arranged in the outer sleeve, the outer sleeve is connected with the first gas inlet, and the inner sleeve is connected with the second gas inlet; the outer sleeve cap is arranged in the reaction chamber and comprises a premixing chamber, and the side wall of the premixing chamber is provided with a through hole communicated with the reaction chamber; the inner sleeve and the outer sleeve are inserted into the premixing chamber of the outer sleeve cap.
2. The chemiluminescent gas detection gas mixing device according to claim 1 wherein a gap exists between the inner sleeve and the inner wall of the outer sleeve.
3. The chemiluminescent gas detection gas mixing device according to claim 1 wherein the outer sleeve is connected to the first gas inlet by a first gas line.
4. The chemiluminescent gas detection gas mixing device according to claim 1 wherein the inner sleeve is connected to the second gas inlet by a second gas line.
5. The chemiluminescent gas detection gas mixing device of claim 1 wherein the inner walls of the reaction chamber are gold plated.
6. The chemiluminescent gas detection gas mixing device according to claim 1 wherein the reaction chamber is provided with a fluorescent outlet for connection to a PMT detection tube.
7. The chemiluminescent gas detection gas mixing device according to claim 6 wherein the fluorescent outlet is internally provided with a filter.
8. The chemiluminescent gas detection gas mixing device according to claim 1 further comprising an exhaust port, wherein the reaction chamber is provided with an exhaust outlet, and the exhaust outlet is connected to the exhaust port.
9. The chemiluminescent gas detection and mixing device according to claim 8 wherein a gas pump is disposed in the exhaust port.
10. A gas detection device comprising the chemiluminescent gas detection gas mixing device of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023289419.3U CN214252022U (en) | 2020-12-30 | 2020-12-30 | Gas detection gas mixing device and gas detection device by chemiluminescence method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023289419.3U CN214252022U (en) | 2020-12-30 | 2020-12-30 | Gas detection gas mixing device and gas detection device by chemiluminescence method |
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| Publication Number | Publication Date |
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| CN214252022U true CN214252022U (en) | 2021-09-21 |
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| CN202023289419.3U Active CN214252022U (en) | 2020-12-30 | 2020-12-30 | Gas detection gas mixing device and gas detection device by chemiluminescence method |
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