Explosion-proof laser radar

A technology of laser radar and cover plate, which is applied in the direction of re-radiation of electromagnetic waves, utilization of re-radiation, measuring devices, etc., can solve the problem of affecting the effective amount of laser beam emission and reception, blocking laser beam emission and reception, and affecting the working effect of laser radar And other problems, to achieve the effect of improving the effective range, enhancing the light transmittance, and improving the explosion-proof performance

Pending Publication Date: 2020-08-04
海隆石油集团(上海)信息技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the laser radar is working, the radar rotates around the axis and continuously emits and receives laser beams. The explosion-proof device installed outside the laser radar will affect the effective amount of laser beam emission and reception, thereby affecting the working effect of the laser radar.
[0006] The explosion-proof glass in the above-mentioned disclosed patent is made of multiple pieces of glass spliced ​​by metal pillars. The position of the metal pillars will block the emission and reception of laser beams; the protective net also limits the range of laser beam emission

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as Figure 1-2 As shown, an explosion-proof laser radar includes a laser radar body 1, a glass cover 2 covering the outside of the laser radar body 1, and an upper cover 3 and a lower cover 4 respectively fixed at both ends of the glass cover 2. The glass cover 2 is fixedly connected with the upper cover plate 3 and the lower cover plate 4 to form the first explosion-proof structure of the laser body 1 .

[0054] The upper cover plate 3 is provided with an upper pull plate 5 , and the lower cover plate 4 is provided with a pull plate 6 . Two pull rods 7 are connected between the upper pull plate 5 and the lower pull plate 6; The two tie rods 7 are arranged symmetrically, and the distance between the two tie rods 7 is large, so as to reduce the loss influence on the laser radar beam transmission.

[0055] The pull rod 7 cooperates with the upper pull plate 5 and the lower pull plate 6 to strengthen the connection strength between the glass cover 2, the upper cover...

Embodiment 2

[0071] Such as Figure 4-5 As shown, an explosion-proof laser radar includes a laser radar body 1, a glass cover 2 covering the outside of the laser radar body 1, and an upper cover 3 and a lower cover 4 respectively fixed at both ends of the glass cover 2. The glass cover 2 is fixedly connected with the upper cover plate 3 and the lower cover plate 4 to form the first explosion-proof structure of the laser body 1 .

[0072] The upper cover plate 3 is provided with an upper pull plate 5 , and the lower cover plate 4 is provided with a pull plate 6 .

[0073] An annular cover body 19 is connected between the upper pull plate 5 and the pull down plate 6; the cover body 19 is provided with a window 20 adapted to the lidar body 1; the cover body 19 is connected with the upper pull plate 5, the pull down plate Plate 6 is fixedly connected.

[0074] Between the upper pull plate 5 and the upper cover plate 3 are respectively provided ring grooves and ring strips that match each oth...

Embodiment 3

[0093] Based on embodiment 1 or embodiment 2, such as Figure 7 As shown, the glass cover 2 of the present invention is double-layer glass; there is a gap between the double-layer glass, and the gap is in a vacuum state. The double-layer glass structure can further improve the explosion-proof performance of the glass cover 2, and a vacuum is set between the double-layer glass to reduce laser transmission loss.

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Abstract

The invention relates to the technical field of radar explosion prevention, and particularly relates to an explosion-proof laser radar. A multiple stable explosion-proof protection structure composedof a glass cover, an upper cover plate, a lower cover plate, an upper pull plate, a lower pull plate, a connecting mechanism and the like is arranged outside a laser body so that the laser radar can be safely applied to dangerous environments with an explosive gas and the like. And meanwhile, a window on the connecting mechanism is matched with the laser body so that transmission losses during laser emission and receiving of laser radar operation can be effectively reduced, and laser detection efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of radar explosion protection, in particular to an explosion-proof laser radar. Background technique [0002] LiDAR (Light Detection And Ranging, LiDAR), that is, laser detection and ranging, combines laser technology and modern photoelectric detection technology, uses lasers as the emission source, and emits high-frequency laser pulses to the detection target to obtain the target's azimuth and distance, etc. information. [0003] At present, lidar is commonly used in petrochemical and other industrial and mining industries, where the operating environment is complex. In the prior art, in order to enable lidar to be safely applied in hazardous environments such as explosive gases, those skilled in the art usually add explosion-proof devices outside the lidar. [0004] For example, the Chinese patent with the publication number CN108627814A discloses a laser radar explosion-proof device, and an explosion-pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/481G01S17/88
CPCG01S7/481G01S17/88
Inventor 孙冬远薛坤谭荣清丰秦侯岳邢冀川余忠凯高发强陈叶
Owner 海隆石油集团(上海)信息技术有限公司
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