CN217954261U

CN217954261U - Emission type three-dimensional laser gas detection device

Info

Publication number: CN217954261U
Application number: CN202221332385.8U
Authority: CN
Inventors: 李杭
Original assignee: Zhejiang Hepu Industrial Co ltd
Current assignee: Zhejiang Hepu Industrial Co ltd
Priority date: 2022-05-28
Filing date: 2022-05-28
Publication date: 2022-12-02
Anticipated expiration: 2032-05-28

Abstract

The utility model is suitable for a gas monitoring technology field provides a gaseous detection device of transmission type three-dimensional laser, include: the base, fix the box on the base, the horizontal rotation mechanism of setting on the box, the vertical rotation mechanism of setting on horizontal rotation mechanism, the laser scanning mechanism who is connected with vertical rotation mechanism transmission, and set up the circuit control device on vertical rotation mechanism, box one side is provided with the sealed import of cable data line and is used for installing the cable data line, horizontal rotation mechanism includes the horizontal rotation driver, vertical rotation mechanism includes the vertical rotation driver, the laser scanning mechanism includes laser scanner, the horizontal rotation driver, vertical rotation driver and laser scanner all are connected with circuit control device electricity, the laser scanner adopts transmission type fixed point laser system and adopts tunable diode laser absorption spectrum to detect target gas. The utility model discloses can improve the gaseous detection precision of target.

Description

Emission type three-dimensional laser gas detection device

Technical Field

The utility model belongs to the technical field of gaseous monitoring, especially, relate to a gaseous detection device of transmission type three-dimensional laser.

Background

At present, gas leakage detectors are all pump suction type infrared analysis particles or chemical reaction type data reading analysis, and therefore output I/O node alarming is carried out. The device for alarming in the mode is fixedly installed at a certain position to carry out small-range detectors, generally, for example, the technical specification protection radius of methane, carbon monoxide and dust in an indoor coal yard is about 5 meters, and the devices cannot be effectively detected even if the devices are installed in large spaces and large spans, so that the problem of low gas detection precision exists when the gas detectors detect in a large range.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gaseous detection device of transmission type three-dimensional laser aims at solving the above-mentioned problem that gaseous detection precision is low on a large scale.

The utility model discloses a realize like this, the first aspect provides a gaseous detection device of three-dimensional laser of transmission type, include: base, fixing box on the base, setting are in horizontal rotation mechanism on the box, setting are in vertical rotation mechanism on the horizontal rotation mechanism, with laser scanning mechanism and setting that vertical rotation mechanism transmission is connected are in circuit control device on the vertical rotation mechanism, box one side is provided with the sealed import of cable data line and is used for installing the cable data line, horizontal rotation mechanism includes the horizontal rotation driver, vertical rotation mechanism includes the vertical rotation driver, laser scanning mechanism includes laser scanner, the horizontal rotation driver the vertical rotation driver and laser scanner all with circuit control device electricity is connected, laser scanner adopts transmission type fixed point laser system and adopts tunable diode laser absorption spectrum to detect target gas.

Furthermore, the box includes the case body, sets up this internal backup pad of case and setting are in support column in the backup pad, be provided with the board in the backup pad and perforate and set up the spacing ring in the board perforation outside, the support column inside set up with the post that the board perforation corresponds is perforated, the board perforate and the post is perforated and is used for installing cable data line, the support column periphery is provided with and is used for the installation horizontal rotary mechanism's snap ring groove.

Furthermore, horizontal rotating mechanism still include with horizontal rotator transmission connection's horizontal rotator, horizontal rotator movable sleeve is established in the card annular groove, horizontal rotation driver is fixed support column top one side.

Furthermore, the vertical rotating mechanism further comprises a vertical fixing body fixedly arranged on the horizontal rotating body and a vertical rotating body movably arranged in the vertical fixing body, the vertical rotating driver is fixedly arranged on the vertical fixing body, and the vertical rotating driver is in transmission connection with the vertical rotating body.

Further, the vertical fixing body includes: the vertical rotation driver is fixedly arranged on the fixing part.

Furthermore, the fixing part is internally provided with a mounting hole, the small end of the vertical rotating body is movably inserted into the mounting hole of the fixing part, and the large end of the vertical rotating body is fixedly connected with the laser scanning mechanism.

Furthermore, the horizontal rotation driver is a claw pole type permanent magnet synchronous motor.

Furthermore, the vertical rotation driver is a claw-pole permanent magnet synchronous motor.

Still further, laser scanning mechanism still include with the big one end fixed connection of vertical rotation body and with connecting portion fixed connection just is used for the installation laser scanner's installation department, installation department one end is provided with the laser scanning window.

Furthermore, the installation department still is provided with dustproof wiper mechanism, dustproof wiper mechanism is including fixed the setting just sets up on the installation department the internal motor of laser scanning window one side and with the dustproof wiper rod that the internal motor transmission is connected, dustproof wiper rod is used for cleaning dust and the rainwater on the laser scanning window.

The utility model discloses the beneficial effect who reaches: the horizontal rotating mechanism is controlled to rotate in the horizontal direction through the circuit control device, and the vertical rotating mechanism is controlled to control the laser scanning mechanism to rotate in the vertical direction through the circuit control device, so that the laser scanner can monitor the concentration of target gas at multiple angles in a large range, and the gas monitoring precision is improved. Meanwhile, continuous automatic operation, non-contact measurement and remote detection can be realized, and the safety of gas monitoring is improved.

Drawings

Fig. 1 is a schematic structural diagram of an emission-type three-dimensional laser gas detection device provided by the present invention;

fig. 2 is a sectional view of an emission type three-dimensional laser gas detection device provided by the present invention.

In the figure, 1, a base, 11 and a limiting part; 2. the box body 21, the box body 22, the supporting plate 221, the plate through hole 222, the limiting ring 23, the supporting column 231 and the column through hole; 3. a horizontal rotation mechanism 31, a horizontal rotation body 32, a horizontal rotation driver; 4. a vertical rotating mechanism 41, a vertical rotating body 42, a vertical rotating driver 43, a supporting frame 44, a fixing part 45 and a mounting hole; 5. a laser scanning mechanism 51, a connecting portion 52, a mounting portion 53, a laser scanning window 54, a laser scanner; 6. a circuit control device; 7. a built-in motor; 8. a dust-proof wiper rod; 9. the cable data line is sealed at the inlet; 10. is externally connected with a ground terminal.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In a first aspect, referring to fig. 1-2, the present invention provides an emission type three-dimensional laser gas detection device, including: base 1, fix box 2, setting on the base 1 are in horizontal rotation mechanism 3, setting on the box 2 are in vertical rotation mechanism 4 on the horizontal rotation mechanism 3, with laser scanning mechanism 5 that vertical rotation mechanism 4 transmission is connected and setting are in circuit control device 6 on the vertical rotation mechanism 4, box 2 one side is provided with the sealed import 9 of cable data line and is used for installing the cable data line, horizontal rotation mechanism 3 includes horizontal rotation driver 32, vertical rotation mechanism 4 includes vertical rotation driver 42, laser scanning mechanism 5 includes laser scanner 54, horizontal rotation driver 32 vertical rotation driver 42 and laser scanner 54 all with circuit control device 6 electricity is connected.

The horizontal rotation driver 32 and the vertical rotation driver 42 are claw-pole permanent magnet synchronous motors. The claw-pole permanent magnet synchronous motor is specifically 60KTYZ1-A (YT 3), and the parameters are as follows: 24V 3r/min 2.3V (input: 8W), S3 (on 3min off 5min) E grade.

The base 1 is provided with a limiting part 11 protruding upwards, and the box body 2 is sleeved on the limiting part 11 and used for limiting and installing the box body 2. The contact surface of the box body 2 and the base 1 is also fixedly connected through screws. The contact surface of the box body 2 sleeved between the limiting parts 11 is an explosion-proof junction surface,

the circuit control device 6 includes a driving circuit board and a data transmission circuit board, the driving circuit board is used for driving the horizontal rotation driver 32 to drive the horizontal rotation mechanism 3 to realize horizontal rotation, and is used for driving the vertical rotation driver 42 to drive the vertical rotation mechanism 4 to realize vertical rotation. The data transmission circuit board is used for controlling the communication device to communicate with external equipment, so that the data transmission function is achieved.

And an external grounding end 10 is further arranged on one side of the base 1 and used for grounding a circuit to avoid electric leakage.

The laser scanner 54 employs an emissive (spot laser) system and uses open-circuit Tunable Diode Laser Absorption Spectroscopy (TDLAS) to detect target gases, which may be methane, carbon monoxide, and methane and carbon monoxide containing gases. The laser scanner 54 employs a single laser or dual laser transceiver assembly and includes a weather system (provided with an anemometer) that monitors wind direction and speed. The laser scanner 54 is capable of detecting a range of 0-10,000ppm-m over a path up to 1 kilometer. The circuit system of the whole device is powered by a built-in battery or a direct current power supply.

Illustratively, when monitoring of methane gas is desired, the laser scanner 54 can utilize sensitive absorption spectroscopy to monitor methane. It uses near infrared wavelength region, uses proprietary optical sampling unit to enhance the absorption signal and reduce noise to the maximum extent, integrated anemometer can track wind speed and direction and allow sensor to triangulate triangular emission source from 0-1 km distance, through long distance over 1 km laser emission, and in the whole 360 ° direction, user can monitor large area methane emission using single emission three dimensional laser gas detection device.

Of course, the laser scanner 54 itself is based on a frequency comb arrangement that emits hundreds of thousands of discrete wavelengths of light, so that many different molecules can be measured simultaneously. Depending on the absorption pattern generated, the concentration of each gas detected along the laser path can be determined very accurately and the parts per billion sensitivity of the methane level measurement combined with a simulation of how wind transports the gas through the gas. The position and size of each trace gas source is triangulated and then analog imaging is performed. The greatest advantage of this system over current leak detection methods is the possibility of continuous automatic operation and contactless measurement forewarning and remote detection.

The embodiment of the utility model provides an in, rotate in the horizontal direction through circuit control device 6 control horizontal rotation mechanism 3 to and control vertical rotation mechanism 4 through circuit control device 6 and control laser scanning mechanism 5 and rotate in the vertical direction, make laser scanner 54 can realize the multi-angle, monitor the gaseous concentration of target on a large scale, improve the precision of gas monitoring. Meanwhile, continuous automatic operation, non-contact measurement and remote detection can be realized, and the safety of gas monitoring is improved.

In the embodiment of the present invention, the box body 2 includes a box body 21, a support plate 22 and a support column 23 disposed on the support plate 22, the support plate 22 is provided with a plate perforation 221 and a limit ring 222 disposed outside the plate perforation 221, the support column 23 is provided with a column perforation 231 corresponding to the plate perforation 221, the plate perforation 221 and the column perforation 231 are used for installing a cable data line, and the support column 23 is provided with a snap ring groove for installing the horizontal rotation mechanism 3.

Wherein the box body 21 is used for supporting and mounting the horizontal rotation mechanism 3. The support plate 22 is used to support and fix the support column 23. The support column 23 is used for mounting and fixing the horizontal rotation mechanism 3, thereby realizing horizontal rotation. The limiting ring 222 is used to limit the horizontal movement or falling off of the supporting column 23. The contact surface between the support column 23 and the support plate 22 is also fixedly connected by screws or the like. The interface between the support post 23 and the support plate 22 is between the retaining ring 222 and the plate through hole 221.

The post hole 231 can be hinged by epoxy resin after the circuit is installed, thereby protecting the circuit.

Specifically, the horizontal rotation mechanism 3 is fixed by the box body 21, the support plate 22 and the support column 23 to realize the horizontal rotation function.

In the embodiment of the present invention, the horizontal rotation mechanism 3 further includes a horizontal rotation body 31 connected to the horizontal rotation device in a transmission manner, the movable sleeve of the horizontal rotation body 31 is disposed in the snap ring groove, and the horizontal rotation driver 32 is fixed on one side of the top end of the support pillar 23. Wherein the horizontal rotation driver 32 is fixed to the support column 23 by screws.

Specifically, when the horizontal rotation driver 32 works, the horizontal rotation body 31 can be driven to horizontally rotate on the snap ring groove of the supporting column 23, so as to realize the function of horizontally adjusting the angle of the device.

In the embodiment of the present invention, the vertical rotation mechanism 4 further comprises a vertical fixing body and a movable vertical rotation body 41, the vertical rotation driver 42 is fixed on the vertical fixing body, and the vertical rotation driver 42 is in transmission connection with the vertical rotation body 41. Wherein the vertical fixing body includes: a support frame 43 fixedly provided on the horizontal rotary body 31, and a fixing portion 44 provided on one side of the support frame 43, and the vertical rotary actuator 42 is fixedly provided on the fixing portion 44. The fixing portion 44 is provided with a mounting hole 45 therein, the small end of the vertical rotator 41 is movably inserted into the mounting hole 45 of the fixing portion 44, and the large end of the vertical rotator 41 is fixedly connected to the laser scanning mechanism 5.

The supporting frame 43 and the fixing portion 44 are fixed by a member such as a screw. The vertical rotary body 41 and the laser scanning mechanism 5 are also fixed by means of screws or the like.

After the circuit is installed in the installation hole 45, the circuit is sealed through epoxy resin glue, and damage to the circuit is avoided.

Specifically, when the vertical rotation driver 42 works, the vertical rotation driver 42 drives the vertical rotation body 41 to rotate in the vertical direction in the mounting hole 45, and further drives the laser scanning mechanism 5 to rotate in the vertical direction, so as to adjust the angle of the laser scanning mechanism 5 in the vertical direction, achieve omnidirectional laser scanning in the vertical direction, and improve the detection accuracy of the target gas.

In the embodiment of the present invention, the laser scanning mechanism 5 further includes a connecting portion 51 fixedly connected to the large end of the vertical rotating body 41, and an installation portion 52 fixedly connected to the connecting portion 51 and used for installing the laser scanner 54, wherein one end of the installation portion 52 is provided with a laser scanning window 53. The laser scanner 54 scans a target area with laser light through the laser scanning window 53 to monitor a target gas in the target area.

The embodiment of the utility model provides an in, installation department 52 still is provided with 8 mechanisms of dustproof wiper rod, 8 mechanisms of dustproof wiper rod are including fixed the setting on installation department 52 and set up the internal motor 7 of laser scanning window 53 one side and with 8 poles of dustproof wiper rod that the internal motor 7 transmission is connected, 8 poles of dustproof wiper rod are used for cleaning dust and rainwater on the laser scanning window 53. Specifically, 8 poles of the dustproof wiper rod 8 in the dustproof wiper rod 8 mechanism clean rainwater and dust on the laser scanning window 53, so that the cleanness of the laser scanning window 53 is ensured, the rainwater or dust on the laser scanning window 53 is prevented from absorbing laser, and the detection precision of the current gas is further improved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An emission type three-dimensional laser gas detection apparatus, comprising: the base, fix box on the base, setting are in horizontal rotation mechanism, setting on the box are in vertical rotation mechanism on the horizontal rotation mechanism, with laser scanning mechanism and setting that vertical rotation mechanism transmission is connected are in circuit control device on the vertical rotation mechanism, box one side is provided with the sealed import of cable data line and is used for installing the cable data line, horizontal rotation mechanism includes the horizontal rotation driver, vertical rotation mechanism includes the vertical rotation driver, laser scanning mechanism includes laser scanner, the horizontal rotation driver the vertical rotation driver and laser scanner all with circuit control device electricity is connected, laser scanner adopts transmission type fixed point laser system and adopts tunable diode laser absorption spectrum to detect target gas.

2. The emissive three-dimensional laser gas detection device as claimed in claim 1, wherein the housing comprises a housing body, a supporting plate disposed in the housing body, and a supporting pillar disposed on the supporting plate, the supporting plate is provided with a plate through hole and a stop ring disposed outside the plate through hole, the supporting pillar is provided with a pillar through hole corresponding to the plate through hole, the plate through hole and the pillar through hole are used for mounting a cable data line, and a ring groove for mounting the horizontal rotation mechanism is disposed around the supporting pillar.

3. The emissive three-dimensional laser gas detection device as claimed in claim 2, wherein the horizontal rotation mechanism further comprises a horizontal rotation body in transmission connection with the horizontal rotation driver, the horizontal rotation body is movably sleeved in the snap ring groove, and the horizontal rotation driver is fixed on one side of the top end of the supporting pillar.

4. The emissive three-dimensional laser gas detecting device according to claim 3, wherein the vertical rotation mechanism further comprises a vertical fixing body fixedly disposed on the horizontal rotating body and a vertical rotating body movably disposed in the vertical fixing body, the vertical rotation driver is fixedly disposed on the vertical fixing body, and the vertical rotation driver is in transmission connection with the vertical rotating body.

5. The emissive three-dimensional laser gas detection device according to claim 4, wherein the vertical fixture comprises: the vertical rotation driver is fixedly arranged on the fixing part.

6. The emissive three-dimensional laser gas detection device according to claim 5, wherein the fixing portion is provided therein with a mounting hole, a small end of the vertical rotator is movably inserted into the mounting hole of the fixing portion, and a large end of the vertical rotator is fixedly connected to the laser scanning mechanism.

7. The emissive three-dimensional laser gas detecting device as claimed in any one of claims 1 to 6, wherein the horizontal rotation driver is a claw-pole permanent magnet synchronous motor.

8. The emissive three-dimensional laser gas detection device of any one of claims 1-6, wherein the vertical rotary drive is a claw-pole permanent magnet synchronous motor.

9. The emissive three-dimensional laser gas detecting device as claimed in claim 6, wherein the laser scanning mechanism further comprises a connecting portion fixedly connected to one end of the vertical rotating body which is large, and a mounting portion fixedly connected to the connecting portion and used for mounting the laser scanner, the mounting portion being provided with a laser scanning window at one end.

10. The emissive three-dimensional laser gas detection device as claimed in claim 9, wherein the mounting portion is further provided with a dustproof wiper mechanism, the dustproof wiper mechanism comprises an internal motor fixedly disposed on the mounting portion and disposed at one side of the laser scanning window, and a dustproof wiper rod drivingly connected to the internal motor, the dustproof wiper rod is used for cleaning dust and rainwater on the laser scanning window.