CN221303144U - CO gas laser detection device and mounting structure thereof - Google Patents
CO gas laser detection device and mounting structure thereof Download PDFInfo
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- CN221303144U CN221303144U CN202323015243.6U CN202323015243U CN221303144U CN 221303144 U CN221303144 U CN 221303144U CN 202323015243 U CN202323015243 U CN 202323015243U CN 221303144 U CN221303144 U CN 221303144U
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- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 230000033228 biological regulation Effects 0.000 claims description 23
- 238000005259 measurement Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 29
- 238000005457 optimization Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001285 laser absorption spectroscopy Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
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Abstract
The utility model discloses a CO gas laser detection device, which comprises a laser emitter, a photoelectric detector and a microprocessor, and also comprises a laser reflection device, wherein the laser reflection device comprises at least 1 laser reflector, the laser reflector can form a laser reflection light path through reflection of laser, so that the laser emitted by the laser emitter can be emitted into the photoelectric detector through the laser reflection light path, the photoelectric detector is electrically connected with the microprocessor, and the concentration of CO gas to be detected is measured through the microprocessor. The utility model also discloses a mounting structure of the CO gas laser detection device, which utilizes the base and the temperature regulating plate at the bottom of the base to embed the laser emitter and the photoelectric detector in the base and place the laser emitter and the photoelectric detector on the temperature regulating plate, so that the laser emitter and the photoelectric detector can control the amount of light and are in the same temperature field, thereby avoiding the influence of temperature and improving the measurement accuracy.
Description
Technical Field
The utility model relates to the technical field of gas detection, in particular to a CO gas laser detection device and an installation structure thereof.
Background
When the coal mine is used for fire house, blasting operation and gas and coal dust explosion, a large amount of CO toxic gas is generated, and after the human body is inhaled, the human body tissues and cells are anoxic, so that poisoning choking is caused. For the health of miners, the CO gas concentration at the downhole operation site must be controlled below 0.0024% according to relevant regulations. Therefore, the concentration of CO in the air in the mine is rapidly and accurately measured, and is an important factor for guaranteeing the safe production of the mine. CO is a colorless, odorless gas, and therefore requires a special detection device to detect its concentration, a CO detector is intended to measure the CO concentration over time and to alert before dangerous concentrations of CO are reached in the environment, providing enough warning for people to safely ventilate or evacuate the area.
The current technology for detecting the gas content by using laser spectrum is one of the leading-edge technological means of the current worldwide detection technology, the working principle is based on a laser absorption spectrometry, the absorption condition of CO molecules in a gas sample to laser with specific wavelength is measured by transmitting the laser in the gas sample, and the concentration of CO is calculated according to the change of absorption intensity. In order to improve the accuracy and effectiveness of the measurement results, the transmission optical path of the laser in the sample gas is usually prolonged, and the absorption of the CO molecules and the light with a specific wavelength in the laser is enhanced, which is simply to separate the laser emitter and the photodetector far enough. However, because the mine tunnel environment is narrow and complex, the requirement of the detector on a large space is difficult to meet.
Disclosure of utility model
Aiming at the defects in the prior art, the utility model aims to solve the technical problems that: how to provide a CO gas laser detection device which can prolong the laser path in a limited space and improve the accuracy of CO concentration detection.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The utility model provides a CO gas laser detection device, includes laser emitter, photoelectric detector and microprocessor, still includes laser reflection device, and laser reflection device includes 1 piece at least laser reflector, and laser reflector can form laser reflection light path through the reflection to laser for laser emitter outgoing laser can be penetrated into photoelectric detector through laser reflection light path, and photoelectric detector is connected with the microprocessor electricity, through the concentration of microprocessor measurement CO gas that awaits measuring.
In the utility model, the original positions of the laser emitter and the photoelectric detector are kept unchanged, and if the laser emitter and the photoelectric detector are in an original correlation mode, the length of a straight line segment is shortest between two points; the utility model sets the laser reflector to change the ray angle of the laser in the middle, and the laser is reflected and then emitted to the photoelectric detector, so that the optical path of the laser is correspondingly increased, the reaction of the laser and CO molecules can be enhanced, and the sensitivity and accuracy of detection are improved; and finally, the photoelectric detector converts the detected electric signals into AD (analog-to-digital) signals, and then the AD signals enter a microprocessor for processing to obtain the concentration value of the CO gas.
As optimization, the number of the laser reflectors is multiple, and the multiple laser reflectors can enable laser to reflect to form a W-shaped light path. Avoiding the interference of the light paths and being beneficial to the miniaturization of the equipment.
The utility model provides a CO gas laser detection device's mounting structure, includes CO gas detection device, temperature regulation board and is used for carrying out the temperature control device who adjusts to the temperature of temperature regulation board, fixedly connected with base on the face of one side of temperature regulation board, wears to be equipped with two mounting holes on the base, and the one end of mounting hole corresponds with the face of temperature regulation board, CO gas detection device be foretell CO gas laser detection device, laser emitter inlays and establishes in one of them mounting hole and place on the temperature regulation board, photoelectric detector inlays and establishes in another mounting hole and place on the temperature regulation board, the laser reflector is installed outside the base. When the laser transmitter and the photoelectric detector work, a large amount of heat can be emitted, if the laser transmitter and the photoelectric detector are not cooled, the normal work of the laser transmitter and the photoelectric detector can be influenced, and the concentration detection of CO gas can be influenced. In the utility model, the laser emitter and the photoelectric detector are embedded in the base, after the laser emitter and the photoelectric detector generate heat, the heat can be transferred through the base contacted with the laser emitter and the photoelectric detector, and the heat is transferred outwards through the base to dissipate the heat; in addition, the laser transmitter and the photoelectric detector are arranged on the temperature regulating plate, and a great amount of heat from the laser transmitter and the photoelectric detector can be absorbed through the temperature regulation of the temperature regulating plate by the temperature control device, so that the laser transmitter and the photoelectric detector are cooled, and kept in the same relatively constant temperature field within the normal working temperature range, the service life of the laser transmitter and the photoelectric detector is prolonged, and the influence on the concentration detection of CO gas is avoided.
Preferably, the base is a heat sink base. The heat sink material is a material capable of efficiently transferring heat and consuming a large amount of heat energy, and is widely applied to the field of heat dissipation. The heat sink material has excellent heat dissipation performance, can consume more heat energy, and improves the heat dissipation effect on the laser emitter and the photoelectric detector.
As optimization, the base is a cylindrical structure, the central line direction of the cylindrical structure is perpendicular to the plane where the temperature regulating plate is located, the two mounting holes are symmetrically arranged by taking the central line of the base as a symmetrical axis, and the central line direction of the mounting holes is parallel to the central line direction of the base. The laser emitter and the photoelectric detector can be better controlled to be in the same temperature field.
As the optimization, the base is carried away from the concave recess that is equipped with in one side of temperature regulation board, two the mounting hole is located the tank bottom of recess, the quantity of laser reflector is polylith and fixed connection on the lateral wall of recess, polylith the laser reflector can make laser reflection form W type light path, the incident end that is located W type light path and the end of penetrating are provided with ejection angle adjustment mirror group and ejection angle adjustment mirror group respectively, ejection angle adjustment mirror group includes mount pad I and movable mounting ejection angle adjustment mirror on mount pad I, ejection angle adjustment mirror group includes mount pad II and movable mounting ejection angle adjustment mirror on mount pad II, mount pad I is installed the drill way department of mounting hole that the laser transmitter corresponds, ejection angle adjustment mirror can be right the laser reflection that the laser transmitter was gone out in the laser reflector in, mount pad II installs the photoelectric detector corresponds the drill way department of mounting hole, ejection angle adjustment mirror can be right in the laser reflector. The W-shaped light path can enable the light beam to be continuously reflected back and forth, and a larger light path can be provided in a smaller space. The two ends of the W-shaped light path are provided with the injection angle adjusting lens group and the injection angle adjusting lens group, so that the installation positions of the laser transmitter and the photoelectric detector and the angles of the injected laser are not required to be limited, and the laser can pass through the W-shaped light path through the movable adjusting angle change of the injection angle adjusting lens and the injection angle adjusting lens, thereby improving the installation convenience of the laser transmitter and the photoelectric detector.
As optimization, the device also comprises a device shell, wherein the CO gas detection device, the temperature regulating plate and the temperature control device are all arranged in the device shell, and air holes are formed in the bottom of the device shell. The waterproof protection is carried out on the internal structure by utilizing the device shell, meanwhile, the air hole at the bottom is utilized to facilitate the air to enter, and the flowing water on the device shell can not reversely flow into the interior through the air hole.
As optimization, the inner bottom surface of the device shell and the position corresponding to the air hole are covered with a breathable waterproof film. Humidity has great influence to the accuracy that laser detected, sets up ventilative water proof membrane, keeps apart through the aqueous vapor to in the air, has improved the accuracy that detects.
Compared with the prior art, the utility model can improve the laser optical path in a limited space, thereby improving the sensitivity and accuracy of CO detection; in addition, the influence on the semiconductor measuring device due to different temperatures is removed by radiating the laser emitter and the photoelectric detector and ensuring that the laser emitter and the photoelectric detector are in the same temperature field, so that the measuring precision is improved.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
fig. 2 is a top view of the present utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined. In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 and fig. 2, the direction of the arrow in the drawing is the emission direction of the laser beam, and the CO gas laser detection device in this embodiment includes a laser emitter 1, a photoelectric detector 2 and a microprocessor, and further includes a laser reflection device, where the laser reflection device includes at least 1 laser mirror 3, and the laser mirror 3 can form a laser reflection light path through the reflection of the laser, so that the laser emitted by the laser emitter 1 can be emitted into the photoelectric detector 2 through the laser reflection light path, the photoelectric detector 2 is electrically connected with the microprocessor, and the concentration of the CO gas to be measured is measured by the microprocessor.
In this embodiment, the number of the laser reflectors 3 is plural, and plural laser reflectors 3 can reflect laser light to form a W-shaped light path.
The utility model provides a CO gas laser detection device's mounting structure, includes CO gas detection device, temperature regulation board 4 and is used for carrying out the temperature control device who adjusts to the temperature of temperature regulation board 4, fixedly connected with base 5 on the face of one side of temperature regulation board 4, wears to be equipped with two mounting holes on the base 5, and the one end of mounting hole corresponds with the face of temperature regulation board 4, CO gas detection device be above-mentioned CO gas laser detection device, laser emitter 1 inlay and establish in one of them mounting hole and arrange in on temperature regulation board 4, photoelectric detector 2 inlays and establishes in another mounting hole and arrange in on temperature regulation board 4, laser reflector 3 installs outside base 5.
In this embodiment, the base 5 is a heat sink base.
In this embodiment, the base 5 is a cylindrical structure, the central line direction of which is perpendicular to the plane where the temperature adjusting plate 4 is located, the two mounting holes are symmetrically arranged with the central line of the base 5 as a symmetry axis, and the central line direction of the mounting holes is parallel to the central line direction of the base 5.
In this embodiment, the base 5 is facing away from the concave recess that is equipped with in one side face of temperature regulation board 4, two the mounting hole is located the tank bottom of recess, the quantity of laser reflector 3 is polylith and fixed connection on the lateral wall of recess, polylith laser reflector 3 can make laser reflection form W type light path, the incident end that is located W type light path and the end of penetrating are provided with ejection angle adjustment mirror group and ejection angle adjustment mirror group respectively, ejection angle adjustment mirror group includes mount pad I6 and movable mounting's ejection angle adjustment mirror 7 on mount pad I6, ejection angle adjustment mirror group includes mount pad II 8 and movable mounting's ejection angle adjustment mirror 9 on mount pad II 8, mount pad I6 is installed laser reflection to in the laser reflector's the aperture department of mounting hole that 1 penetrated in the laser emitter, mount pad II 8 is installed in the aperture department of mounting hole that photoelectric detector 2 corresponds, ejection angle adjustment mirror 9 can penetrate to laser reflector 2 in the laser reflector.
In this embodiment, still include the device shell, CO gas detection device the temperature regulation board with temperature control device all installs in the device shell, and the gas pocket has been seted up to device shell bottom.
In this embodiment, the inner bottom surface of the device housing and the position corresponding to the air hole are covered with a breathable waterproof film.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the utility model, and that those skilled in the art will be understood that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (8)
1. The utility model provides a CO gas laser detection device, includes laser emitter, photoelectric detector and microprocessor, its characterized in that: the laser reflection device comprises at least 1 laser reflector, the laser reflector can form a laser reflection light path through reflection of laser, laser emitted by the laser emitter can be emitted into the photoelectric detector through the laser reflection light path, the photoelectric detector is electrically connected with the microprocessor, and the concentration of CO gas to be measured is measured through the microprocessor.
2. The CO gas laser detection apparatus according to claim 1, wherein: the number of the laser reflectors is multiple, and the multiple laser reflectors can enable laser to be reflected to form a W-shaped light path.
3. The utility model provides a CO gas laser detection device's mounting structure which characterized in that: including CO gas detection device, temperature regulation board and be used for carrying out the temperature control device who adjusts to the temperature of temperature regulation board, fixedly connected with base on the face of one side of temperature regulation board, wear to be equipped with two mounting holes on the base, the one end of mounting hole corresponds with the face of temperature regulation board, CO gas detection device is the CO gas laser detection device of any one of claims 1 or 2, laser emitter inlays and establishes in one of them mounting hole and arrange on the temperature regulation board, photoelectric detector inlays and establishes in another mounting hole and arrange on the temperature regulation board, the laser reflector is installed in the base outside.
4. The mounting structure of a CO gas laser detection apparatus according to claim 3, wherein: the base is a heat sink base.
5. The mounting structure of a CO gas laser detection apparatus according to claim 3, wherein: the base is of a cylindrical structure, the central line direction of the cylindrical structure is perpendicular to the plane where the temperature regulating plate is located, the two mounting holes are symmetrically arranged by taking the central line of the base as a symmetrical axis, and the central line direction of the mounting holes is parallel to the central line direction of the base.
6. The mounting structure of a CO gas laser detection apparatus according to claim 3, wherein: the base is opposite to one side face of the temperature regulating plate, a groove is concavely formed in the side face of the base, two mounting holes are formed in the groove bottom of the groove, the number of the laser reflectors is multiple, the laser reflectors are fixedly connected to the side wall of the groove, the laser reflectors can form a W-shaped light path, an incident end and an emission end of the W-shaped light path are respectively provided with an emission angle regulating lens group and an emission angle regulating lens group, the emission angle regulating lens group comprises a mounting seat I and an emission angle regulating lens movably mounted on the mounting seat I, the emission angle regulating lens group comprises a mounting seat II and an emission angle regulating lens movably mounted on the mounting seat II, the mounting seat I is mounted at the opening of the mounting hole corresponding to the laser emitters, the emission angle regulating lens can reflect laser emitted from the laser emitters to the laser reflectors, the mounting seat II is mounted at the opening of the mounting hole corresponding to the photoelectric detector, and the emission angle regulating lens can reflect laser emitted from the laser reflectors to the photoelectric detector.
7. The mounting structure of a CO gas laser detection apparatus according to claim 3, wherein: the device also comprises a device shell, wherein the CO gas detection device, the temperature regulating plate and the temperature control device are all installed in the device shell, and air holes are formed in the bottom of the device shell.
8. The mounting structure of a CO gas laser detection apparatus according to claim 7, wherein: the inner bottom surface of the device shell and the position corresponding to the air hole are covered with a breathable waterproof film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323015243.6U CN221303144U (en) | 2023-11-08 | 2023-11-08 | CO gas laser detection device and mounting structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323015243.6U CN221303144U (en) | 2023-11-08 | 2023-11-08 | CO gas laser detection device and mounting structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221303144U true CN221303144U (en) | 2024-07-09 |
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ID=91755824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323015243.6U Active CN221303144U (en) | 2023-11-08 | 2023-11-08 | CO gas laser detection device and mounting structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221303144U (en) |
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2023
- 2023-11-08 CN CN202323015243.6U patent/CN221303144U/en active Active
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