CN-121994713-A - Gas absorption tank device

Abstract

The invention discloses a gas absorption tank device which comprises a gas chamber sleeve, a second cylindrical lens mounting seat, a first cylindrical lens and a second cylindrical lens, wherein the first end of the gas chamber sleeve is connected with a gas chamber base in a sealing mode, the first cylindrical lens is mounted on the inner side of the gas chamber base, a first hole is formed in the first cylindrical lens, a second hole is formed in the gas chamber base, an emission detection mechanism is arranged on the outer side of the gas chamber base, and the second cylindrical lens mounting seat is sleeved in the gas chamber sleeve and can rotate relative to the gas chamber sleeve, and is mounted on the inner side of the second cylindrical lens mounting seat. The invention has the advantages of low processing difficulty, low cost and convenient adjustment.

Inventors

• ZHANG LONGCI
• ZHANG YUEXIN
• WANG ZHENXIANG
• YANG SHENGRONG
• HE FENG

Assignees

• 中国电子科技集团公司第四十八研究所

Dates

Publication Date

20260508

Application Date

20260312

Claims (10)

1. 1. The gas absorption tank device is characterized by comprising a gas chamber sleeve (1), a second cylindrical lens mounting seat (12), and a first cylindrical lens (2) and a second cylindrical lens (3) which are oppositely arranged, wherein a gas chamber base (11) is connected at a first end of the gas chamber sleeve (1) in a sealing mode, the first cylindrical lens (2) is mounted on the inner side of the gas chamber base (11), a first hole (21) is formed in the first cylindrical lens (2), a second hole (111) is formed in the gas chamber base (11), an emission detection mechanism (4) is arranged on the outer side of the gas chamber base (11), the second cylindrical lens mounting seat (12) is sleeved in the gas chamber sleeve (1) and can rotate relative to the gas chamber sleeve (1), and the second cylindrical lens (3) is mounted on the inner side of the second cylindrical lens mounting seat (12).
2. 2. The gas absorption cell device as recited in claim 1, further comprising an adjusting pin (14), wherein the adjusting pin (14) is in threaded connection with an end plate at the second end of the gas chamber sleeve (1), and one end of the adjusting pin (14) abuts against the second cylindrical lens mounting seat (12).
3. 3. The gas absorption cell device as recited in claim 1, further comprising a fixing nut (15), wherein the second cylindrical lens mounting base (12) extends through and out of the end plate of the second end of the gas cell sleeve (1) to form an extension, and wherein the fixing nut (15) is used for fixing the extension to the end plate of the second end of the gas cell sleeve (1).
4. 4. The gas absorption cell device according to claim 1, wherein a sealing end cover (13) is arranged outside the second end of the gas chamber sleeve (1), and the sealing end cover (13) is in sealing connection with the end face of the gas chamber sleeve (1) through a sealing ring.
5. 5. The gas absorption cell device as recited in claim 1, wherein the gas absorption cell device further comprises a plurality of lens press rings (16), the first cylindrical lens (2) is mounted on the gas chamber base (11) through the lens press rings (16), and the second cylindrical lens (3) is mounted on the second cylindrical lens mounting base (12) through the lens press rings (16).
6. 6. The gas absorption cell device as recited in claim 1, wherein a transparent window sheet (112) is provided outside the second hole (111).
7. 7. The gas absorption cell device according to claim 1, wherein the gas chamber sleeve (1) is provided with a pipeline joint (17) for connecting with an external gas pipe.
8. 8. The gas absorption cell device according to any one of claims 1 to 7, wherein the emission detection mechanism (4) comprises a support frame (41), an emission component (42) and a detection component (43), the support frame (41) is mounted on the gas chamber base (11), an included angle is formed between a support surface at the top of the support frame (41) and a mounting surface at the bottom of the support frame (41), the included angle is the same as a deflection angle of incident light, and the emission component (42) and the detection component (43) are respectively mounted on the support surface of the support frame (41).
9. 9. The gas absorption cell device as recited in claim 8, wherein the probe assembly (43) comprises a probe mount (431) mounted on a support surface of the support frame (41), and the probe mount (431) is provided with a probe mounting hole for mounting a probe.
10. 10. The gas absorption cell device according to claim 8, wherein the emission component (42) comprises an adjusting seat (421) and a laser mounting seat (422), the adjusting seat (421) is mounted on a supporting surface of the supporting frame (41), the laser mounting seat (422) is connected with the adjusting seat (421) through a plurality of tension springs (424) and positioned with the adjusting seat (421) through a plurality of pin shafts, a plurality of thread adjusting pairs (423) and a laser mounting hole for mounting a laser are arranged on the laser mounting seat (422), and concave blind holes matched with the thread adjusting pairs (423) are formed in the adjusting seat (421).

Description

Gas absorption tank device Technical Field The invention relates to the technical field of gas monitoring equipment, in particular to a gas absorption tank device. Background Currently, commonly used long path gas absorption cells are White cells, chernin cells, herriott cells, discrete mirror cells, and cylindrical mirror cells. The White pool consists of three-sided reflecting mirrors, and has large volume, poor stability and low mirror utilization rate. The Chernin pool is developed by improving the White pool, effectively utilizes the cavity mirror area, is convenient to adjust, but has extremely complex structure, larger volume and limited practical application. The Herriott cell consists of two spherical mirrors, the cavity mirror area is not effectively utilized, and the spherical mirrors are more difficult to process than cylindrical mirrors. The discrete lens pool overcomes the defects of the Herriott pool, effectively utilizes the area of the cavity lens, but has high processing cost and low yield. The existing long-optical-path gas absorption cell is usually improved by a Herriott cell. The improved Herriott pool consists of two spherical mirrors, the processing difficulty of the spherical mirrors is high, the curvature radius of the mirrors and the corresponding focus are often deviated, and the qualification rate is required to be sacrificed or the quality is required to be judged in advance by high-precision detection equipment. In addition, since the two spherical mirrors are symmetrically arranged, in order to ensure that the light beam is reflected back and forth in the cavity mirror, the incident light beam is often required to deflect in two planes in the coordinate system of the double spherical mirrors, which brings great difficulty to the adjustment of the mounting position of the laser. Disclosure of Invention The invention aims to solve the technical problem of overcoming the defects of the prior art and providing the gas absorption tank device which is low in processing difficulty, low in cost and convenient to adjust. In order to solve the technical problems, the invention adopts the following technical scheme: The utility model provides a gaseous absorbing tank device, includes air chamber sleeve, second cylindrical lens mount pad to and relative arrangement's first cylindrical lens and second cylindrical lens, air chamber sleeve's first end sealing connection has the air chamber base, first cylindrical lens installs in air chamber base's inboard, be equipped with first hole on the first cylindrical lens, be equipped with the second hole on the air chamber base, air chamber base's the outside is equipped with emission detection mechanism, second cylindrical lens mount pad suit is in the air chamber sleeve and can rotate relative air chamber sleeve, the second cylindrical lens is installed in the inboard of second cylindrical lens mount pad. As a further improvement of the above technical scheme: The gas absorption tank device further comprises an adjusting nail, the adjusting nail is in threaded connection with the end plate at the second end of the air chamber sleeve, and one end of the adjusting nail is in butt joint with the second cylindrical lens mounting seat. The gas absorption cell device further comprises a fixing nut, the second cylindrical lens mounting seat penetrates through and extends out of the end plate of the second end of the gas chamber sleeve to form an extending part, and the fixing nut is used for fixing the extending part on the end plate of the second end of the gas chamber sleeve. The second end of the air chamber sleeve is provided with a sealing end cover, and the sealing end cover is in sealing connection with the end face of the air chamber sleeve through a sealing ring. The gas absorption tank device further comprises a plurality of lens press rings, the first cylindrical lens is installed on the gas chamber base through the lens press rings, and the second cylindrical lens is installed on the second cylindrical lens installation seat through the lens press rings. And a transparent window sheet is arranged on the outer side of the second hole. The air chamber sleeve is provided with a pipeline joint which is connected with an external air pipe. The emission detection mechanism comprises a support frame, an emission component and a detection component, wherein the support frame is arranged on the air chamber base, an included angle is formed between a supporting surface at the top of the support frame and a mounting surface at the bottom of the support frame, the included angle is identical to the deflection angle of incident light, and the emission component and the detection component are respectively arranged on the supporting surface of the support frame. The detection assembly comprises a detector mounting seat arranged on the supporting surface of the supporting frame, and a detector mounting hole for mounting a detector is formed in the detecto