Ash tank interior automatic scanning and mapping device for auxiliary ash removal of power plant ash tank

Abstract

The utility model relates to an ash tank interior automatic scanning and mapping device for auxiliary ash removal of a power plant ash tank, which can accurately position the position distribution of accumulated ash in an ash tank body, and comprises a scanning assembly, a supporting piece and an adjustable telescopic rod, the adjustable telescopic rod is provided with a connecting part which is detachably connected with the scanning assembly, and the supporting piece is provided with a via hole through which the adjustable telescopic rod passes; when the interior of the ash can is scanned, the bottom end of the adjustable telescopic rod extends out of the via hole of the supporting piece, the scanning assembly is fixedly installed at the bottom end of the adjustable telescopic rod through the connecting part, then the scanning assembly extends into the ash can, and the supporting piece is supported on a can body of the ash can; when the upper part of the outer top of the ash can is scanned, the scanning assembly is fixed on the supporting piece through the connecting part, and then the supporting piece is upside down at the top of the can body.

Description

Technical Field

[0001] The present application relates to the technical field of laser-assisted operations, and in particular to an automatic scanning and mapping device for the interior of an ash tank used for auxiliary ash tank cleaning in a power plant. Background Art

[0002] A large amount of coal ash burned in thermal power plants needs to be stored in ash tanks for secondary utilization. After long-term storage, the ash tanks are easily accumulated, resulting in the ash outlets at the bottom of the tanks being blocked. External cleaning operations are required to clear the ash outlets. Therefore, it is particularly important to understand the coal ash accumulation inside the ash tanks before cleaning.

[0003] Most of the existing power plants read the situation inside the ash tank by installing a level meter on the top of the ash tank. However, this level meter is prone to aging and damage after a long time. It is not conducive to accurately and vividly understanding the distribution of ash inside the ash tank and specifically locating the distribution of ash. Therefore, when cleaning work is required, there is an urgent need for a power plant ash tank auxiliary cleaning device and using a 3D camera to output the specific distribution of ash inside the ash tank through algorithm 3D modeling to provide accurate data for the next step of cleaning work. Summary of the invention

[0004] The present application provides an automatic scanning and mapping device for the inside of an ash tank for auxiliary cleaning of an ash tank in a power plant, so as to at least solve the problem in the prior art that the level meter is easily damaged and can only read the internal height of the ash tank one-sidedly but cannot locate the position of the ash inside the tank in a three-dimensional and accurate manner.

[0005] In order to achieve the above-mentioned purpose, the present application provides an automatic scanning and mapping device for the interior of an ash tank for auxiliary ash cleaning of a power plant, comprising a scanning component, a support member and an adjustable telescopic rod, wherein the support member is provided with a connecting portion detachably connected to the scanning component, the adjustable telescopic rod is provided with a connecting portion detachably connected to the scanning component, and the support member is provided with a through hole for the adjustable telescopic rod to pass through;

[0006] When scanning the inside of the ash tank, the bottom end of the adjustable telescopic rod is extended from the through hole of the support member, and the scanning assembly is fixedly mounted on the bottom end through the connecting portion, and then the scanning assembly is extended into the inside of the ash tank, and the support member is supported on the tank body of the ash tank;

[0007] When scanning above the outer top of the ash tank, the scanning assembly is fixed to the support member through the connecting portion, and then the support member is inverted on the top of the tank body.

[0008] Preferably, the ash tank is provided with a material level meter port, and a flange surface is formed at the material level meter port. When scanning the inside of the ash tank, the support member is placed on the flange surface.

[0009] Preferably, the support member has a raised portion, and the via hole is provided on the raised portion.

[0010] Preferably, the support member has an edge portion at the edge of the raised portion.

[0011] Preferably, the top end is provided with a limiting step to prevent it from escaping from the via hole.

[0012] Preferably, the connecting portion on the support member is a bolt hole; and / or the connecting portion on the adjustable telescopic rod is a bolt hole.

[0013] Preferably, the scanning assembly includes a driving assembly, a frame, a bracket fixing plate, a coupling, a rotating transmission shaft, a laser bracket, and a 3D laser. The frame and the driving assembly are mounted on the bracket fixing plate. The frame is connected to the bottom end of the adjustable telescopic rod. One end of the rotating transmission shaft is connected to the output end of the driving assembly through a coupling, and the other end is fixedly connected to the laser bracket. The 3D laser is fixed on the laser bracket. The 3D laser scans by performing circular motion as the driving assembly is driven by the coupling, the rotating transmission shaft, and the laser bracket.

[0014] Preferably, the driving assembly includes a servo motor and a planetary reducer, the servo motor and the planetary reducer are transmission-connected, and one end of the rotating transmission shaft is connected to the output end of the planetary reducer via a coupling.

[0015] Preferably, the frame is an aluminum profile frame.

[0016] Preferably, it also includes a bearing seat and a deep groove ball bearing, the other end of the rotating transmission shaft passes through the bearing seat and is fixedly connected to the laser bracket, and the deep groove ball bearing is arranged between the bearing seat and the rotating transmission shaft.

[0017] According to the above content, the beneficial effects of the present application are: the distribution of dust accumulation inside the ash tank can be understood through 3D laser scanning and 3D modeling inside and on the top of the tank, and the position distribution of dust accumulation inside the ash tank can be accurately located. The structure is simple, the output results are accurate and vivid, and accurate information is effectively provided for the next step of cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0020] Figure 2 It is a schematic diagram of the structure of the scanning component of this application. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the contents disclosed in the present application, some changes such as design, manufacturing or production based on the technical contents disclosed in the present application are only conventional technical means, and should not be understood as insufficient contents disclosed in the present application.

[0022] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0023] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantity limitation, and may indicate the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application means greater than or equal to two. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The terms "first", "second", "third" and the like involved in the present application are merely used to distinguish similar objects and do not represent a specific ordering of the objects.

[0024] See also Figure 1 The present application provides an automatic scanning and mapping device for the interior of an ash tank for auxiliary cleaning of an ash tank in a power plant, comprising a scanning component 3, a support 1 and an adjustable telescopic rod 2, the support 1 having a raised portion 11 and an edge portion 12 at the edge of the raised portion 11, the raised portion 11 of the support 1 is provided with a connecting portion detachably connected to the scanning component 3, the adjustable telescopic rod 2 is provided with a connecting portion detachably connected to the scanning component 3, in this embodiment, preferably, the connecting portion on the support 1 is a bolt hole; and / or, the connecting portion on the adjustable telescopic rod 2 is a bolt hole, specifically, the support 1 is formed by bending SUS304 sheet metal, and the raised portion 11 has two small bolt holes for fixing, a U-shaped wire hole, and a through hole for the adjustable telescopic rod 2, the raised end face of the telescopic rod support 1 is fitted with the flange end face of the original material level meter of the ash tank, and the support 1 is directly connected to the scanning component 3 through two small bolt holes for fixing.

[0025] The raised portion 11 of the support member 1 is provided with a through hole for the adjustable telescopic rod 2 to pass through, and the top end of the 2 is provided with a limiting step (not shown in the figure) to prevent the rod 2 from escaping from the through hole during the passing process.

[0026] In this embodiment, the ash tank is provided with a material level meter port (not shown in the figure), and a flange surface (not shown in the figure) is formed at the material level meter port. When scanning the inside of the ash tank, the bottom end of the adjustable telescopic rod 2 is extended from the through hole of the support member 1 and the scanning component 3 is fixedly mounted on the bottom end of the support member 2 through the connecting portion, and then the scanning component 3 is extended into the ash tank. The support member 1 is supported at the flange surface, and the scanning depth of the scanning component 3 in the tank body can be controlled by the length of the extended rod of the adjustable telescopic rod 2. After the laser scanning is completed, the 3D modeling of the ash inside the tank body is completed by the algorithm and the coordinate position at this time is recorded;

[0027] When scanning the top of the exterior of the ash tank, the scanning component 3 is fixed to the support 1 through the connecting part, and then the support 1 is inverted in the middle part of the top of the tank body. The scanning component 3 obtains the external features above the top of the tank through laser scanning, completes 3D modeling through the algorithm and records the coordinate position at this time; combined with the scanning modeling of the inside and outside of the tank body, the accurate 3D distribution and coordinate position of the internal ash are obtained, providing accurate data for the next step of cleaning work.

[0028] Refer to the following Figure 2 The structure of the scanning component 3 is further described: it specifically includes a driving component 311, a frame 312, a bracket fixing plate 313, a coupling 314, a rotating transmission shaft 315, a laser bracket 320, and a 3D laser 321. The frame 312 is preferably an aluminum profile frame. The frame 312 and the driving component 311 are installed on the bracket fixing plate 313. The frame 312 is connected to the bottom end of the adjustable telescopic rod 2. One end of the rotating transmission shaft 315 is connected to the output end of the driving component 311 through the coupling 314, and the other end is fixedly connected to the laser bracket 320. The 3D laser 321 is fixed on the laser bracket 320. The 3D laser 321 is transmitted through the coupling 314, the rotating transmission shaft 315, and the laser bracket 320 to perform circular motion with the driving component 311 for scanning.

[0029] In this embodiment, the driving assembly 311 includes a servo motor 3111 and a planetary reducer 3112 . The servo motor 3111 and the planetary reducer 3112 are transmission-connected. One end of the rotating transmission shaft 315 is connected to the output end of the planetary reducer 3112 through a coupling 314 .

[0030] In this embodiment, it also includes a bearing seat 316, a deep groove ball bearing, a small retaining ring, and a large retaining ring. The other end of the rotating transmission shaft 315 passes through the bearing seat 316 and is fixedly connected to the laser bracket 320. The deep groove ball bearing is arranged between the bearing seat 316 and the rotating transmission shaft 315 and is axially limited by the small retaining ring and the large retaining ring.

[0031] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An automatic scanning and mapping device for the interior of an ash tank for auxiliary ash cleaning in a power plant, characterized in that: It comprises a scanning assembly, a supporting member and an adjustable telescopic rod, wherein the supporting member is provided with a connecting portion detachably connected to the scanning assembly, the adjustable telescopic rod is provided with a connecting portion detachably connected to the scanning assembly, and the supporting member is provided with a through hole for the adjustable telescopic rod to pass through; When scanning the inside of the ash tank, the bottom end of the adjustable telescopic rod is extended from the through hole of the support member, and the scanning assembly is fixedly mounted on the bottom end of the adjustable telescopic rod through the connecting portion, and then the scanning assembly is extended into the inside of the ash tank, and the support member is supported on the tank body of the ash tank; When scanning above the outer top of the ash tank, the scanning assembly is fixed to the support member through the connecting portion, and then the support member is inverted on the top of the tank body.

2. The automatic scanning and mapping device for the interior of an ash tank for auxiliary ash cleaning of a power plant according to claim 1 is characterized by: The ash tank is provided with a material level meter opening, and a flange surface is formed at the material level meter opening. When scanning the interior of the ash tank, the support member is placed on the flange surface.

3. The automatic scanning and mapping device for the interior of an ash tank for auxiliary ash cleaning of a power plant according to claim 1 is characterized by: The support member has a convex portion, and the via hole is arranged on the convex portion.

4. The automatic scanning and mapping device for the interior of an ash tank for auxiliary ash cleaning of a power plant according to claim 3 is characterized by: The support member has an edge portion at an edge of the raised portion.

5. The automatic scanning and mapping device for the interior of an ash tank for auxiliary ash cleaning of a power plant according to claim 1 is characterized by: The top end of the adjustable telescopic rod is provided with a limiting step to prevent it from escaping from the through hole.

6. The automatic scanning and mapping device for the interior of an ash tank for auxiliary ash cleaning of a power plant according to any one of claims 1 to 4, characterized in that: The connecting portion on the support member is a bolt hole; and / or the connecting portion on the adjustable telescopic rod is a bolt hole.

7. The automatic scanning and mapping device for the interior of an ash tank for auxiliary ash cleaning of a power plant according to any one of claims 1 to 4, characterized in that: The scanning component includes a driving component, a frame, a bracket fixing plate, a coupling, a rotating transmission shaft, a laser bracket, and a 3D laser. The frame and the driving component are installed on the bracket fixing plate. The frame is connected to the bottom end of the adjustable telescopic rod. One end of the rotating transmission shaft is connected to the output end of the driving component through a coupling, and the other end is fixedly connected to the laser bracket. The 3D laser is fixed on the laser bracket. The 3D laser is transmitted through the coupling, the rotating transmission shaft, and the laser bracket and performs circular motion with the driving component to scan.

8. The automatic scanning and mapping device for the interior of an ash tank for auxiliary ash cleaning of a power plant according to claim 7 is characterized by: The driving assembly comprises a servo motor and a planetary reducer. The servo motor and the planetary reducer are transmission-connected. One end of the rotating transmission shaft is connected to the output end of the planetary reducer through a coupling.

9. The automatic scanning and mapping device for the interior of an ash tank for auxiliary ash cleaning of a power plant according to claim 7 is characterized by: The frame is an aluminum profile frame.

10. The automatic scanning and mapping device for the interior of an ash tank for auxiliary ash cleaning of a power plant according to claim 7, characterized in that: It also includes a bearing seat and a deep groove ball bearing. The other end of the rotating transmission shaft passes through the bearing seat and is fixedly connected to the laser bracket. The deep groove ball bearing is arranged between the bearing seat and the rotating transmission shaft.

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