Laser methane and ethane detection device

Abstract

The utility model discloses a laser methane and ethane detection device which comprises a fixed mounting bedplate, a movable limiting adjusting disc is arranged above the fixed mounting bedplate, a first adjusting rod is arranged at the right end of the movable limiting adjusting disc, and a second adjusting rod is arranged in the middle of the movable limiting adjusting disc. Limiting groove bodies are formed in the inner sides of the left end and the right end of the second adjusting rod correspondingly, and fixed limiting rods connected with the fixed mounting table plate are arranged on the inner sides of the limiting groove bodies. And the mounting transverse plate is fixedly mounted at the lower end of the second adjusting rod, a butt joint transverse plate is arranged below the mounting transverse plate, a detachable connecting piece is arranged at the joint of the butt joint transverse plate and the mounting transverse plate, and a detection assembly is fixedly mounted at the lower end of the butt joint transverse plate. According to the laser methane and ethane detection device, lifting adjustment can be carried out according to needs, the problem that the measurement range is not good is avoided, stable connection and installation are facilitated, and the practical effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to methane and ethane detection, in particular to a laser methane and ethane detection device. Background Technique

[0002] With the development of society, the utilization of combustible gases such as methane and ethane is becoming more and more widespread. However, continuous popularization and use will cause many hidden problems. Therefore, a detection device is needed to detect methane and ethane gases. For example:

[0003] The Chinese patent authorization announcement number CN109765184B discloses an optical gas absorption cell and an optical gas detection system, including: an incident mirror with a plurality of incident windows; an exit mirror arranged parallel to the incident mirror, the exit mirror having a plurality of exit windows corresponding to the plurality of incident windows one by one; wherein, the wavelengths of the light beams exiting through the respective exit windows are different, and are used for simultaneously detecting the concentrations of the respective components in the mixed gas.

[0004] The above-mentioned existing technical solutions have the following defects: it is not convenient to adjust the height according to needs, which is likely to cause problems with a poor measurement range, it is not convenient to perform stable connection and installation, and the practical effect is not good. Therefore, we propose a laser methane and ethane detection device to solve the problems mentioned above. Content of the Utility Model

[0005] The purpose of the utility model is to provide a laser methane and ethane detection device to solve the problems of inconvenient lifting adjustment according to needs, easy to cause a poor measurement range, inconvenient stable connection and installation, and poor practical effect mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a laser methane and ethane detection device, including a fixed installation base plate, an activity limit adjustment disc is arranged above the fixed installation base plate, and a first adjustment rod is arranged at the right end of the activity limit adjustment disc. A second adjustment rod is arranged in the middle of the activity limit adjustment disc, and limit groove bodies are opened on the inner sides of the left and right ends of the second adjustment rod, and fixed limit rods connected to the fixed installation base plate are arranged inside the limit groove bodies;

[0007] An installation cross plate is fixedly installed at the lower end of the second adjustment rod. A docking cross plate is arranged below the installation cross plate, and a detachable connecting piece is arranged at the connection between the docking cross plate and the installation cross plate. A detection component is fixedly installed at the lower end of the docking cross plate.

[0008] Preferably, fixed support legs for stable support are fixedly installed at the four corners of the lower end of the fixed installation base plate, and self-locking universal wheels with moving functions are installed at the lower ends of the fixed support legs.

[0009] Preferably, the movable limit adjusting disc and the first adjusting rod are connected in a meshing manner, and a driving motor is installed at the rear end of the first adjusting rod.

[0010] Preferably, the movable limit adjusting disc is configured to rotate on the upper end of the fixed mounting base plate, and the movable limit adjusting disc and the second adjusting rod are connected in a threaded manner.

[0011] Preferably, the second adjusting rod forms a snap-in sliding structure on the fixed limiting rod through a limiting groove body, and the fixed limiting rod is symmetrically arranged about the center line of the second adjusting rod.

[0012] Preferably, the detection component includes a mounting housing, a laser emission module, a collimating lens, a beam splitter, an optical window, a first converging lens, a measurement signal detection module, a second converging lens, and a calibration signal detection module;

[0013] The mounting housing is arranged at the lower end of the docking cross plate, and a laser emission module is installed at the front end of the mounting housing. A collimating lens is arranged behind the laser emission module, a beam splitter is arranged behind the collimating lens, an optical window is arranged behind the beam splitter, a first converging lens is arranged behind the optical window, a measurement signal detection module is arranged at the rear end of the mounting housing, a second converging lens is arranged inside the lower end of the mounting housing, and a calibration signal detection module is installed at the lower end of the mounting housing.

[0014] Preferably, the laser emission module and the first converging lens are symmetrically arranged about the center line of the mounting housing in the front and rear directions.

[0015] Preferably, both the beam splitter and the optical window are arranged obliquely inside the mounting housing.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: The laser methane and ethane detection device can be adjusted in height as needed, avoiding the problem of poor measurement range, facilitating stable connection and installation, and improving the practical effect of the device;

[0017] 1. The movable limit adjusting disc and the first adjusting rod are connected in a meshing manner. When the driving motor is turned on to rotate the first adjusting rod, the movable limit adjusting disc can be driven to rotate synchronously, so that the second adjusting rod threadedly connected to the movable limit adjusting disc can stably move up and down through the limiting groove body on the fixed limiting rod, and can be adjusted in height as needed, avoiding the problem of poor measurement range;

[0018] 2. A detachable connecting piece is provided at the connection between the installation cross plate and the docking cross plate, which can not only fixedly connect the detection component and the second adjusting rod, but also facilitate the disassembly and replacement of the whole detection component in the later stage, avoiding damage caused by phenomena such as bumping.

[0019] 3. The fixed legs are evenly arranged at the four corners of the lower end of the fixed installation base plate, and self-locking universal wheels are arranged at the lower ends of the fixed legs, which can make the whole fixed installation base plate move and adjust flexibly, facilitating the detection of methane and ethane gases at different angles and heights, and effectively improving the practical effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view sectional structure schematic diagram of the present utility model;

[0021] Figure 2 It is a side view sectional structure schematic diagram of the present utility model;

[0022] Figure 3 It is a top view sectional structure schematic diagram of the connection between the movable limit adjusting disc and the first adjusting rod of the present utility model;

[0023] Figure 4 It is a side view sectional structure schematic diagram of the connection between the installation cross plate and the docking cross plate of the present utility model.

[0024] In the figure: 1. Fixed installation base plate; 2. Fixed leg; 3. Self-locking universal wheel; 4. Movable limit adjusting disc; 5. First adjusting rod; 6. Driving motor; 7. Second adjusting rod; 8. Limit groove body; 9. Fixed limit rod; 10. Installation cross plate; 11. Docking cross plate; 12. Detachable connecting piece; 13. Detection component; 1301. Installation shell; 1302. Laser emission module; 1303. Collimating lens; 1304. Beam splitter; 1305. Optical window; 1306. First converging lens; 1307. Measurement signal detection module; 1308. Second converging lens; 1309. Calibration signal detection module. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-4, the present utility model provides a technical solution: a laser methane and ethane detection device, which includes an active limit adjustment disk 4 arranged above a fixed installation base plate 1, a first adjustment rod 5 arranged at the right end of the active limit adjustment disk 4, a second adjustment rod 7 arranged in the middle of the active limit adjustment disk 4, limit slots 8 are opened at the inner sides of the left and right ends of the second adjustment rod 7, and a fixed limit rod 9 connected to the fixed installation base plate 1 is arranged inside the limit slots 8;

[0027] An installation cross plate 10 is fixedly installed at the lower end of the second adjustment rod 7, a docking cross plate 11 is arranged below the installation cross plate 10, a detachable connecting piece 12 is arranged at the connection between the docking cross plate 11 and the installation cross plate 10, and a detection component 13 is fixedly installed at the lower end of the docking cross plate 11.

[0028] Specifically, as shown in Figure 1 , Figure 2 and Figure 3 , fixed support legs 2 for stable support are fixedly installed at the four corners of the lower end of the fixed installation base plate 1, and self-locking universal wheels 3 with moving functions are installed at the lower ends of the fixed support legs 2, which can enable the fixed installation base plate 1 to be stably supported under the action of the fixed support legs 2 and can be flexibly moved under the action of the self-locking universal wheels 3; the active limit adjustment disk 4 and the first adjustment rod 5 are connected in a meshing manner, and a driving motor 6 is installed at the rear end of the first adjustment rod 5, which can drive the active limit adjustment disk 4 to rotate synchronously when the driving motor 6 is turned on to rotate the first adjustment rod 5; the active limit adjustment disk 4 forms a rotating structure at the upper end of the fixed installation base plate 1, and the active limit adjustment disk 4 and the second adjustment rod 7 are connected in a threaded manner, which can drive the second adjustment rod 7 connected by the thread to move up and down when the active limit adjustment disk 4 rotates; the second adjustment rod 7 forms a clamping sliding structure on the fixed limit rod 9 through the limit slots 8, and the fixed limit rods 9 are symmetrically arranged about the center line of the second adjustment rod 7, which can enable the second adjustment rod 7 to perform stable limit movement on the fixed limit rod 9 through the limit slots 8.

[0029] Specifically, as shown in Figure 1 , Figure 2 and Figure 4Among them, the detection component 13 includes an installation housing 1301, a laser emission module 1302, a collimating lens 1303, a beam splitter 1304, an optical window 1305, a first converging lens 1306, a measurement signal detection module 1307, a second converging lens 1308, and a calibration signal detection module 1309; the installation housing 1301 is arranged at the lower end of the docking cross plate 11, and the laser emission module 1302 is installed at the front end of the installation housing 1301, and a collimating lens 1303 is arranged at the rear side of the laser emission module 1302, a beam splitter 1304 is arranged at the rear side of the collimating lens 1303, and an optical window 1305 is arranged at the rear side of the beam splitter 1304, and a first converging lens 1306 is arranged at the rear side of the optical window 1305, the measurement signal detection module 1307 is arranged at the rear end of the installation housing 1301, and a second converging lens 1308 is arranged at the inner side of the lower end of the installation housing 1301, and the calibration signal detection module 1309 is installed at the lower end of the installation housing 1301; the laser emission module 1302 and the first converging lens 1306 are symmetrically arranged front and back with respect to the center line of the installation housing 1301; both the beam splitter 1304 and the optical window 1305 are arranged obliquely inside the installation housing 1301.

[0030] When using this laser methane and ethane detection device, first assemble all the parts, and then place the fixed installation table board 1 at the designated position through the self-locking universal wheels 3 arranged at the lower ends of the fixed legs 2, and it can be flexibly moved through the self-locking universal wheels 3. Specifically, as Figure 1 , Figure 2 and Figure 3 In, the movable limit adjustment disc 4 and the first adjustment rod 5 are connected in a meshing manner. When the driving motor 6 is turned on to rotate the first adjustment rod 5, it can drive the movable limit adjustment disc 4 to rotate synchronously, so that the second adjustment rod 7 threadedly connected to the movable limit adjustment disc 4 can stably move up and down through the limit groove body 8 on the fixed limit rod 9. With the detachable connecting piece 12 arranged at the connection between the installation cross plate 10 and the docking cross plate 11, it is convenient to disassemble and replace the entire detection component 13 later.

[0031] Specifically, as Figure 1 , Figure 2 and Figure 4In [the device], when the laser emission module 1302 installed at the front end of the installation housing 1301 is turned on, the laser can be converged by the collimating lens 1303 and emitted backward. At this time, it will pass through the beam splitter 1304 and extend backward, and then be concentrated on the first converging lens 1306 after passing through the symmetrically arranged optical window 1305. Then, it is projected toward the methane and ethane through the measurement signal detection module 1307. The laser will be reflected back into the installation housing 1301, refracted by the beam splitter 1304, and then converge toward the calibration signal detection module 1309 through the second converging lens 1308, so as to conduct detection.

[0032] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, details are not described herein. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0033] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. Laser methane and ethane detection device, characterized in that: include: A fixed mounting platform (1), wherein a movable limit adjustment disk (4) is arranged above the fixed mounting platform (1), and a first adjustment rod (5) is arranged at the right end of the movable limit adjustment disk (4), a second adjustment rod (7) is arranged in the middle of the movable limit adjustment disk (4), and limit grooves (8) are arranged on the inner sides of both left and right ends of the second adjustment rod (7), and a fixed limit rod (9) connected to the fixed mounting platform (1) is arranged on the inner side of the limit groove (8); A mounting transverse plate (10) is fixedly mounted on the lower end of the second adjusting rod (7); a docking transverse plate (11) is arranged below the mounting transverse plate (10); a detachable connecting piece (12) is arranged at the connection between the docking transverse plate (11) and the mounting transverse plate (10); a detection assembly (13) is fixedly mounted on the lower end of the docking transverse plate (11).

2. The laser methane and ethane detection device according to claim 1 is characterized in that: The four corners at the lower end of the fixed installation platform (1) are all fixedly installed with fixed legs (2) for stable support, and the lower ends of the fixed legs (2) are installed with self-locking universal wheels (3) with a moving function.

3. The laser methane and ethane detection device according to claim 1 is characterized in that: The movable limit adjustment disk (4) and the first adjustment rod (5) are connected in a meshing manner, and a driving motor (6) is installed at the rear end of the first adjustment rod (5).

4. The laser methane and ethane detection device according to claim 3 is characterized in that: The movable limit adjustment disk (4) forms a rotating structure at the upper end of the fixed installation platform (1), and the movable limit adjustment disk (4) and the second adjustment rod (7) are connected in a threaded manner.

5. The laser methane and ethane detection device according to claim 3 is characterized in that: The second adjustment rod (7) forms a snap-fit ​​sliding structure on the fixed limit rod (9) through the limit groove body (8), and the fixed limit rod (9) is arranged in a left-right symmetrical manner with respect to the center line of the second adjustment rod (7).

6. The laser methane and ethane detection device according to claim 1, characterized in that: The detection assembly (13) comprises a mounting housing (1301), a laser emission module (1302), a collimating lens (1303), a beam splitter lens (1304), an optical window (1305), a first converging lens (1306), a measurement signal detection module (1307), a second converging lens (1308) and a calibration signal detection module (1309); A mounting shell (1301) is arranged at the lower end of the docking cross plate (11), and a laser emitting module (1302) is mounted at the front end of the mounting shell (1301), and a collimating lens (1303) is arranged at the rear side of the laser emitting module (1302), a beam splitter lens (1304) is arranged at the rear side of the beam splitter lens (1304), an optical window (1305) is arranged at the rear side of the optical window (1305), and a first converging lens (1306) is arranged at the rear side of the optical window (1305), a measurement signal detection module (1307) is arranged at the rear end of the mounting shell (1301), a second converging lens (1308) is arranged on the inner side of the lower end of the mounting shell (1301), and a calibration signal detection module (1309) is mounted at the lower end of the mounting shell (1301).

7. The laser methane and ethane detection device according to claim 6, characterized in that: The laser emission module (1302) and the first converging lens (1306) are arranged front-to-back symmetrically with respect to the center line of the mounting housing (1301).

8. The laser methane and ethane detection device according to claim 6, characterized in that: The beam splitter lens (1304) and the optical window (1305) are both arranged in an inclined manner inside the mounting housing (1301).

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