CN214794412U - High-reliability methane sensing gas chamber - Google Patents
High-reliability methane sensing gas chamber Download PDFInfo
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- CN214794412U CN214794412U CN202120564172.7U CN202120564172U CN214794412U CN 214794412 U CN214794412 U CN 214794412U CN 202120564172 U CN202120564172 U CN 202120564172U CN 214794412 U CN214794412 U CN 214794412U
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Abstract
The utility model relates to a gas leakage monitoring technology field just discloses a high reliability methane sensing air chamber, divide the spectroscope including gas pool cavity, 90 degrees deflection mirrors and 90 degrees, the fixed detection ware that is provided with the laser instrument and sets up with the laser instrument symmetry of lower extreme of gas pool cavity, the fixed calibration detector that is provided with standard gas little air chamber and is located standard gas little air chamber downside of intermediate part of gas pool cavity, the fixed setting of 90 degrees deflection mirrors is in the both sides of gas pool cavity and is the splayed distribution setting, the fixed middle part that sets up at the gas pool cavity of 90 degrees spectroscopes, be provided with laser instrument light outlet on the gas pool cavity, detect that the detector goes into the unthreaded hole and the spectroscope goes into the unthreaded hole. The utility model discloses carry out the light path reflection of many times, can make whole volume diminish, the light path is elongated, has improved the firmness of lens, increases the air chamber reliability.
Description
Technical Field
The utility model relates to a gas leakage monitoring technology field especially relates to a high reliability methane sensing air chamber.
Background
Along with the development of economic society, natural gas in cities and towns is rapidly popularized. The natural gas pipeline leakage is an important factor which influences the urban life while bringing convenience to the life of people. The leaked natural gas belongs to toxic and harmful gas and influences production and life of people, so that the monitoring of gas leakage and early warning change are particularly critical.
The infrared absorption gas sensor is a scheme which is rapidly developed in recent years, and an existing gas chamber of the infrared absorption gas sensor has optical fibers or the reflection times of a light path are too small, so that the size is larger, and the reliability is lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the infrared absorption formula gas sensor air chamber among the prior art and having optic fibre, or the light path reflection number of times is too little, leads to the volume big on the left and also the problem on the right low of reliability, and the high reliability methane sensing air chamber that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a high reliability methane sensing air chamber, includes gas pool cavity, 90 degrees deflection mirrors and 90 degrees spectroscopes, the fixed detection detector that is provided with the laser instrument and sets up with the laser instrument symmetry of lower extreme of gas pool cavity, the fixed calibration detector that is provided with the little air chamber of standard gas and is located the little air chamber downside of standard gas in the intermediate part of gas pool cavity, the fixed both sides that set up at the gas pool cavity of 90 degrees deflection mirrors just are splayed and distribute the setting, the fixed middle part that sets up at the gas pool cavity of 90 degrees spectroscopes, be provided with laser instrument light outlet on the gas pool cavity, detect that the detector goes into the unthreaded hole and the spectroscope goes into the unthreaded hole.
Preferably, a plurality of mounting grooves are formed in the gas pool cavity, the 90-degree deflection reflecting mirror and the 90-degree beam splitter are fixedly connected with the gas pool cavity through the mounting grooves, and the 90-degree deflection reflecting mirror and the 90-degree beam splitter are fixedly connected with the mounting grooves through gluing.
Preferably, the 90-degree deflection mirror is embodied as a reflection prism.
Preferably, the 90-degree spectroscope is specifically a beam splitter prism.
Preferably, the 90-degree deflection mirror is aligned with the laser light outlet.
Preferably, the laser is fixedly connected with the gas pool cavity through a bolt, and heat dissipation glue is arranged between the laser and the gas pool cavity.
Compared with the prior art, the utility model provides a high reliability methane sensing air chamber possesses following beneficial effect:
1. this high reliability methane sensing air chamber, through the gas pond cavity that is equipped with, 90 degrees deflection mirrors, 90 degrees beam splitter, the laser instrument, detect the detector, the little air chamber of standard gas and demarcation detector, laser instrument transmitting light source is through 90 degrees deflection mirrors, through many times of total reflection in the gas pond cavity again, middle 90 degrees beam splitter that pass through, finally pass through 90 degrees deflection mirrors again, the light path reflection of many times carries out, can make whole volume diminish, the light path is lengthened, through increasing the little air chamber of standard gas, can let whole light path have the reference, can improve the test accuracy by a wide margin, 90 degrees deflection mirrors align with detection detector light inlet hole, and adjust with light outlet 90 degrees mirror simultaneously, guarantee to have very high coupling efficiency among the detection detector.
2. This high reliability methane sensing air chamber through the mounting groove of seting up on the gas pool cavity for 90 degrees deflection mirror and 90 degrees spectroscopes and gas pool cavity between be connected more firm, have improved the firmness of lens, increase the air chamber reliability.
And the part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses carry out the light path reflection of many times, can make whole volume diminish, the light path is prolonged, has improved the firmness of lens, increases the air chamber reliability.
Drawings
Fig. 1 is a schematic structural diagram of a high-reliability methane sensing gas chamber provided by the present invention;
fig. 2 is a schematic top view of a highly reliable methane sensing gas chamber according to the present invention;
fig. 3 is a schematic structural view of the connection between the gas pool cavity of the high-reliability methane sensing gas chamber and the 90-degree deflection mirror provided by the present invention;
fig. 4 is a schematic view of a partial cross-sectional structure of a high-reliability methane sensing gas chamber according to the present invention.
In the figure: the gas cell comprises a gas cell cavity 1, a deflection reflector 290 degrees, a beam splitter 390 degrees, a laser 4, a detection detector 5, a standard gas small gas cell 6, a calibration detector 7, a laser light outlet 8, a detection detector light inlet 9, a beam splitter light inlet 10 and a mounting groove 11.
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, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 simplicity of description, and do not indicate or imply that the device or element being 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.
Referring to fig. 1-4, a high-reliability methane sensing gas chamber, including gas pool cavity 1, 90 degrees deflection mirror 2 and 90 degrees spectroscopes 3, the lower extreme of gas pool cavity 1 is fixed and is provided with laser 4 and the detection detector 5 that sets up with laser 4 symmetry, the fixed calibration detector 7 that is provided with standard gas little air chamber 6 and is located standard gas little air chamber 6 downside that is provided with in the middle part of gas pool cavity 1, 90 degrees deflection mirror 2 is fixed to be set up in the both sides of gas pool cavity 1 and be the splayed distribution setting, 90 degrees spectroscopes 3 are fixed to be set up in the middle part of gas pool cavity 1, be provided with laser light outlet 8 on the gas pool cavity 1, detect detector and go into unthreaded hole 9 and spectroscopes and go into unthreaded hole 10.
Be provided with a plurality of mounting grooves 11 in the gas pond cavity 1, 90 degrees deflection mirror 2 and 90 degrees spectroscopes 3 pass through mounting groove 11 and gas pond cavity 1 fixed connection, through sticky fixed connection between 90 degrees deflection mirror 2 and 90 degrees spectroscopes 3 and the mounting groove 11.
The 90-degree deflecting mirror 2 is embodied as a reflecting prism.
The 90-degree beam splitter 3 is specifically a beam splitter prism.
The 90-degree deflection mirror 2 is aligned with the laser exit aperture 8.
The laser 4 is fixedly connected with the gas pool cavity 1 through bolts, and heat dissipation glue is arranged between the laser 4 and the gas pool cavity 1.
In the utility model, when in use, the laser 4 transmits light through the 90-degree deflection reflector 2 and the 90-degree beam splitter 3, the laser 4, the detection detector 5, the standard gas small air chamber 6 and the calibration detector 7, the laser 4 transmits the light through the 90-degree deflection reflector 2 and then totally reflects for many times in the gas pool cavity 1, the light passes through the 90-degree deflection reflector 3 in the middle and finally passes through the 90-degree deflection reflector 2 to reflect the light path for many times, so that the whole volume can be reduced, the light path can be lengthened, the whole light path can be referred by adding the standard gas small air chamber 6, the test precision can be greatly improved, the 90-degree deflection reflector 2 is aligned with the light inlet of the detection detector 5 and is simultaneously adjusted with the light outlet 90-degree deflection reflector 2, the high coupling efficiency in the detection detector 5 is ensured, the mounting groove 11 is arranged on the gas pool cavity 1, the connection between the 90-degree deflection reflector 2 and the 90-degree beam splitter 3 and the air pool cavity 1 is more stable, the firmness of the lenses is improved, and the reliability of the air chamber is improved.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A high-reliability methane sensing gas chamber comprises a gas pool cavity (1), a 90-degree deflection reflector (2) and a 90-degree spectroscope (3), it is characterized in that the lower end of the gas pool cavity (1) is fixedly provided with a laser (4) and a detection detector (5) which is arranged symmetrically with the laser (4), the middle part of the air pool cavity (1) is fixedly provided with a standard gas small air chamber (6) and a calibration detector (7) positioned at the lower side of the standard gas small air chamber (6), the 90-degree deflection reflectors (2) are fixedly arranged on two sides of the air pool cavity (1) and distributed in a splayed shape, the 90-degree spectroscope (3) is fixedly arranged in the middle of the air pool cavity (1), and the gas pool cavity (1) is provided with a laser light outlet hole (8), a detection detector light inlet hole (9) and a light splitter light inlet hole (10).
2. The high-reliability methane sensing gas chamber according to claim 1, characterized in that a plurality of mounting grooves (11) are provided in the gas pool cavity (1), the 90-degree deflecting mirror (2) and the 90-degree beam splitter (3) are fixedly connected with the gas pool cavity (1) through the mounting grooves (11), and the 90-degree deflecting mirror (2) and the 90-degree beam splitter (3) are fixedly connected with the mounting grooves (11) through gluing.
3. A high reliability methane sensing gas cell according to claim 1, characterized in that said 90 degree deflection mirror (2) is embodied as a reflecting prism.
4. A high reliability methane sensing gas cell according to claim 1, characterized in that said 90 degree spectroscope (3) is embodied as a beam splitter prism.
5. A high reliability methane sensing gas cell according to claim 1, characterized in that said 90 degree deflection mirror (2) is aligned with the laser exit aperture (8).
6. The high-reliability methane sensing gas chamber according to claim 1, wherein the laser (4) is fixedly connected with the gas cell cavity (1) through a bolt, and a heat dissipation adhesive is arranged between the laser (4) and the gas cell cavity (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120564172.7U CN214794412U (en) | 2021-03-19 | 2021-03-19 | High-reliability methane sensing gas chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120564172.7U CN214794412U (en) | 2021-03-19 | 2021-03-19 | High-reliability methane sensing gas chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214794412U true CN214794412U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120564172.7U Active CN214794412U (en) | 2021-03-19 | 2021-03-19 | High-reliability methane sensing gas chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214794412U (en) |
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2021
- 2021-03-19 CN CN202120564172.7U patent/CN214794412U/en active Active
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