Laser scanning device and laser generating equipment

Abstract

The utility model discloses a laser scanning device and laser generating equipment, and the laser scanning device comprises a long gun barrel which extends along a length direction; the laser transmission line is used for transmitting laser, extends into the gun barrel from the outside of the gun barrel, and extends towards the head end part of the gun barrel along the gun barrel; and the laser generating equipment is used for generating laser and transmitting the laser through the laser transmission line. The laser generating device comprises a laser generator; a substrate having substantially the same shape as the laser generator; one side face of the base plate is provided with a pipe groove. A cooling pipe is laid along the pipe groove; the side face of the laser generator and the side face, provided with the pipe groove, of the base plate are tightly attached and fixed. When the laser generating equipment is used, cooling water flows through the cooling pipe to cool the laser generator, and the laser generating equipment is wide in application range.

Description

Technical Field

[0001] The present application relates to an optical instrument or system, and in particular to a laser scanning device and a laser generating device. Background Art

[0002] Closed industrial furnaces, such as blast furnaces, have high temperatures, high pressures, and high dust levels within them, making observation through observation windows difficult. To address this, various detection devices have been proposed to obtain information about the furnace interior, such as infrared cameras and microwave scanners. Some of these detection devices are located outside the furnace shell, transmitting and / or receiving detection signals through observation windows. However, dust accumulation on these windows can hinder detection. Consequently, the concept of placing detection elements, such as cameras and other sensors, within the furnace has been proposed.

[0003] CN1156149C discloses an insertable furnace camera, comprising a camera gun, a sealing valve, and a sealing sleeve. A camera and a temperature measuring element are mounted at the front end of the camera gun. The camera gun passes through the sealing sleeve and the sealing valve until it reaches the front end of the camera, thereby positioning the camera and temperature measuring element at the front end of the camera gun within the blast furnace. Because the camera gun is sealed by both the sealing sleeve and the sealing valve, during blast furnace production, the camera gun can be pulled out between the sealing valve and the sealing sleeve, the sealing valve closed, and then the camera gun can be pulled out of the sealing sleeve for inspection and maintenance. It is important to note that this camera gun has no moving parts.

[0004] CN201540038U and CN206402324U improve the camera of CN1156149C, wherein a scraper or scraper is provided in front of the camera window and dust is avoided by the reciprocating motion of the scraper or scraper.

[0005] CN100424465C discloses detecting the internal information of an industrial furnace by using a laser trace formed by a divergent laser beam passing through smoke or dust in the furnace, but it does not describe the details of the laser device that generates the laser beam. Utility Model Content

[0006] The purpose of this application is to provide a laser scanning device and a laser generating device.

[0007] The laser scanning device comprises:

[0008] An elongated gun barrel extending in a length direction and having a head end and a tail end opposite to each other along its length direction; a laser transmission line for transmitting laser light, extending from the outside of the gun barrel into the gun barrel and extending along the gun barrel toward its head end; and a laser generating device for generating laser light and transmitting the laser light through the laser transmission line.

[0009] The laser generating device includes: a laser generator; a substrate having a shape substantially identical to that of the laser generator; a tube groove on one side of the substrate, the tube groove having two openings on an end surface of the substrate; and a cooling tube laid along the tube groove, with both ends extending from the two openings of the tube groove on the substrate; the side of the laser generator is tightly fitted and fixed to the side of the substrate having the tube groove.

[0010] Optionally, thermal grease is further included; the thermal grease is evenly applied between the side surface of the laser generator and the side surface of the substrate having the tube groove.

[0011] Optionally, a heat-conductive fixing agent is further included; the heat-conductive fixing agent fills the gap between the cooling tube and the tube groove, and makes the side of the substrate with the tube groove flat.

[0012] Optionally, the substrate further includes a plurality of mounting holes for fixing the substrate and the laser generator together using fastening elements.

[0013] Optionally, the laser generating device further includes a temperature measuring element; the temperature measuring element is embedded in the substrate.

[0014] The present application also provides a laser generating device, comprising: a laser generator; a substrate, the shape of which is substantially the same as that of the laser generator; a side surface of the substrate having a tube groove, the tube groove having two openings on the end surface of the substrate; and a cooling pipe laid along the tube groove, the two ends of which extend from the two openings of the tube groove on the substrate; the side surface of the laser generator is tightly fitted and fixed to the side surface of the substrate having the tube groove.

[0015] Optionally, thermal grease is further included; the thermal grease is evenly applied between the side surface of the laser generator and the side surface of the substrate having the tube groove.

[0016] Optionally, a heat-conductive fixing agent is further included; the heat-conductive fixing agent fills the gap between the cooling tube and the tube groove, and makes the side of the substrate with the tube groove flat.

[0017] Optionally, the substrate further includes a plurality of mounting holes for fixing the substrate and the laser generator together using fastening elements.

[0018] Optionally, it further includes a temperature measuring element; the temperature measuring element is embedded in the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Shown is a structural diagram of a laser scanning device;

[0020] Figure 2 Shown is a structural diagram of the laser generating device;

[0021] Figure 3 Shown is a cross-sectional view of a laser generating device. DETAILED DESCRIPTION

[0022] The technical solution of the present application is described in detail below with reference to the accompanying drawings and embodiments. In these drawings, the same or similar components are marked with the same or similar reference numerals.

[0023] like Figure 1 As shown, the laser scanning device may include a laser gun 100 and an outer sleeve 200 inserted therein, both of which may be elongated. Figure 1 The left end portion is called the tail end portion, and the right end portion is called the head end portion. The outer sleeve 200 may have an inner cavity extending along its length direction for receiving the inserted laser gun 100 therein. The laser gun 100 may be inserted into the outer sleeve 200 from the tail end portion, and until the head end of the laser gun 100 reaches the head end portion of the outer sleeve 200, thereby forming a Figure 1 The laser scanning device in the assembled state is shown. The tail end portion of the laser gun 100 can be exposed outside the outer sleeve 200 so that the laser gun 100 can be easily inserted and pulled out relative to the outer sleeve 200 by holding the tail end portion. Although the portion of the laser gun 100 inserted into the outer sleeve 200 is usually not visible from the outside, Figure 1 This portion is drawn schematically so that the arrangement of the laser gun 100 in the outer sleeve 200 can be seen more clearly.

[0024] Figure 1 The laser scanning device shown can be installed on an industrial furnace, such as a blast furnace, with its front end extending into the furnace and its rear end positioned outside. During operation, the laser gun 100 provides laser light to scan the interior of the blast furnace, acquiring information about the furnace. The outer sleeve 200 protects the laser gun 100 and provides other auxiliary and support functions. It is understood that this laser detection device can also be used in other types of industrial furnaces or other applications requiring laser scanning.

[0025] like Figure 1 As shown, the outer sleeve 200 of the laser scanning device may have a flange 214 .

[0026] Figure 1Also shown is a flanged short pipe 300, which may include a tube 301 and a flange 302 fixedly connected to each other. The flanged short pipe 300 serves as a mounting base for the laser scanning device and provides access through the furnace shell. During actual installation, the tube 301 of the flanged short pipe 300 may pass through the blast furnace shell and be pre-fixed (e.g., welded) thereto, while the flange 302 may be located externally. The laser scanning device may be inserted into the flanged short pipe 300 until its flange 214 and the flanged short pipe 302 abut against each other and its head end passes through the tube 301 of the flanged short pipe 300 and into the blast furnace interior. The flanges 214 and 302 may then be securely connected to each other using fasteners such as bolts. Although not shown, it is understood that a sealing element such as a sealing ring or gasket may be positioned between the flanges 214 and 302. It should be noted that the length of the tube 301 of the flange short tube 300 can be designed so that the head end of the laser scanning device can be exposed outside the tube 301, such as Figure 1 As shown, the flange short pipe 300 does not interfere with the laser emission provided by the laser scanning device. The flange short pipe 300 can be regarded as an auxiliary installation tool of the laser scanning device, and can also be regarded as a part of the laser scanning device.

[0027] Figure 1 Also shown is a laser gun of the laser scanning device, which is used to provide a laser beam with a deflectable direction. Figure 2 As shown, the laser gun 100 may include an elongated barrel 110. The barrel 110 may extend along a length direction and have a head end and a tail end opposite to each other along the length direction.

[0028] The laser transmission line 121 can extend from the outside of the barrel 110 into the barrel 110 and extend along the barrel 110 toward the tip end thereof. The laser light generated by the laser generating device 500 outside the barrel 110 can be transmitted to a desired location by the laser transmission line 121. The laser transmission line 121 can be one or more optical fibers.

[0029] The description of the above-mentioned laser scanning device is described in detail in the Chinese invention patent publication number CN118655696A, entitled "A Laser Scanning Device", which is hereby incorporated into the present application by reference.

[0030] The laser generating device 500 has high requirements for the working environment, and because it generates heat continuously during operation, it needs to be cooled continuously to ensure normal operation. Otherwise, it may cause abnormal operation or even damage, so cooling measures must be taken on the laser generating device 500. Conventional cooling methods generally use heat dissipation grilles and air cooling devices, but these measures cannot meet the needs under special environmental conditions and when the power of the laser generating device 500 is high. The heat dissipation grille is not effective when the ambient temperature is high, and the fan is easily damaged in an industrial environment with high dust. These two methods are not very applicable. Water cooling is a relatively reliable and ideal cooling method. For this reason, the present application designs a laser generating device 500 with a cooling plate. The laser generating device 500 with a cooling plate is suitable for a variety of common or special industrial environments and has a wide range of uses.

[0031] like Figure 2 As shown, the laser generating device 500 may include: a laser generator 501 for generating laser light. One side of the laser generator 501 may be closely attached to a cooling plate 502, and thermal grease may be evenly applied between the two to enhance heat conduction.

[0032] like Figure 3 As shown, the cooling plate 502 may include:

[0033] The aluminum substrate 5021 can have a shape similar to the side profile of the laser generator 501 and can be slightly larger than the side area of ​​the laser generator 501. One side of the substrate 5021 can have a tube groove. The cross-section of the tube groove can be a curve, covering the entire substrate 5021 as evenly as possible, and two openings can be provided on one end surface of the substrate 5021. The center of the substrate 5021 can have four mounting holes 5024, which can be fastened to the laser generator 501 using screws or other fasteners. In other embodiments, the substrate 5021 can be made of other metals that can quickly transfer heat, such as copper. The number of mounting holes 5024 can be two or more. The two openings of the tube groove can be located on either end surface of the substrate 5021, and can be conveniently positioned to input and output cooling water for the cooling pipe.

[0034] The copper cooling pipe 5022 can be laid along the pipe groove, and its two ends can extend from the two openings of the pipe groove on the substrate 5021. The cooling pipe 5022 can be fixed to the pipe groove using a thermally conductive fixing agent. The thermally conductive fixing agent can fill the gap between the cooling pipe 5022 and the pipe groove and make the side of the substrate 5021 where the pipe groove is laid flat. If the height of the cooling pipe 5022 after being laid in the pipe groove is higher than the side of the substrate 5021, the cooling pipe 5022 can be flattened until it is in the same plane as the side of the substrate 5022. The two joints of the cooling pipe 5022 can use standard tapered pipe threaded pipe joints commonly used for welding, which are more suitable for on-site environments and are firm and reliable. The side of the substrate 5021 with the pipe groove fits tightly against the laser generator 501. In other embodiments, the cooling pipe 5022 can also be made of other metals that can quickly transfer heat, such as stainless steel.

[0035] A temperature measuring element 5023 can be embedded in the side of the substrate 5021 opposite the tube slot opening to monitor the temperature of the substrate 5021 in real time. The temperature measuring element 5023 can be connected to a temperature controller, which can be used to set temperature alarms. Through program and circuit control, alarms can be triggered when the temperature is too high, or protective measures such as power outages can be taken to protect the laser generator 501 from damage. Temperature can also be regulated by controlling other devices to ensure stable operation of the device. In other embodiments, the temperature measuring element 5023 can also be embedded in other locations on the substrate 5021.

[0036] During use, cooling water is introduced into one end of the cooling tube 5022, flows through the entire cooling tube 5022, and flows out from the other end, removing heat from the substrate 5021, effectively cooling the substrate 5021. Heat generated by the laser generator 501 is transferred to the substrate 5021 and removed by the continuously flowing cooling water, thus cooling the laser generator 501.

[0037] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art will understand that modifications or equivalent substitutions to the technical solutions of the present invention do not depart from the spirit and scope of the present invention and are intended to be encompassed by the claims of the present invention.

Claims

1. A laser scanning device, characterized in that: include: An elongated gun barrel (110) extending in a length direction and having a head end and a tail end opposite to each other along the length direction; a laser transmission line (121) for transmitting laser light, which extends from the outside of the gun barrel (110) into the gun barrel (110) and extends along the gun barrel (110) toward the head end thereof; and A laser generating device (500) for generating laser light and transmitting the laser light through the laser transmission line (121); The laser generating device (500) comprises: Laser generator (501); A substrate (5021) having a shape substantially identical to that of the laser generator (501); a tube groove having one side surface thereof, the tube groove having two openings at an end surface of the substrate (5021); and The cooling pipe (5022) is laid along the pipe groove, with its two ends extending from two openings of the pipe groove on the base plate (5021); The side surface of the laser generator (501) is tightly fitted and fixed to the side surface of the substrate (5021) having the tube groove.

2. The laser scanning device according to claim 1, wherein: It also includes thermal conductive silicone grease; the thermal conductive silicone grease is evenly applied between the side surface of the laser generator (501) and the side surface of the substrate (5021) having the tube groove.

3. The laser scanning device according to claim 1, wherein: It also includes a heat-conducting fixing agent; the heat-conducting fixing agent fills the gap between the cooling tube (5022) and the tube groove, and makes the side of the substrate (5021) with the tube groove flat.

4. The laser scanning device according to claim 1, wherein: The substrate (5021) further comprises a plurality of mounting holes (5024) for fixing the substrate (5021) and the laser generator (501) together using fastening elements.

5. The laser scanning device according to claim 1, wherein: The laser generating device (500) further comprises a temperature measuring element (5023); the temperature measuring element (5023) is embedded in the substrate (5021).

6. A laser generating device, characterized in that: include: Laser generator (501); A substrate (5021) having a shape substantially identical to that of the laser generator (501); One side surface of the base plate (5021) has a tube groove, and the tube groove has two openings on the end surface of the base plate (5021); and The cooling pipe (5022) is laid along the pipe groove, with its two ends extending from two openings of the pipe groove on the base plate (5021); The side surface of the laser generator (501) is tightly fitted and fixed to the side surface of the substrate (5021) having the tube groove.

7. The laser generating device according to claim 6, characterized in that: It also includes thermal conductive silicone grease; the thermal conductive silicone grease is evenly applied between the side surface of the laser generator (501) and the side surface of the substrate (5021) having the tube groove.

8. The laser generating device according to claim 6, characterized in that: It also includes a heat-conducting fixing agent; the heat-conducting fixing agent fills the gap between the cooling tube (5022) and the tube groove, and makes the side of the substrate (5021) with the tube groove flat.

9. The laser generating device according to claim 6, characterized in that: The substrate (5021) further comprises a plurality of mounting holes (5024) for fixing the substrate (5021) and the laser generator (501) together using fastening elements.

10. The laser generating device according to claim 6, characterized in that: It also includes a temperature measuring element (5023); the temperature measuring element (5023) is embedded in the substrate (5021).

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