Chimney with inner and outer cylinder detection device

Abstract

The utility model discloses a chimney with an inner and outer cylinder detection device, which comprises an outer cylinder and at least one inner cylinder arranged in the outer cylinder, and further comprises a guide rail arranged between the outer cylinder and the inner cylinder; the detection robot is used for detecting the thickness and corrosion conditions of the outer cylinder and the inner cylinder and comprises a machine body, a driving wheel mechanism, a pressing wheel mechanism and a detection mechanism, the driving wheel mechanism, the pressing wheel mechanism and the detection mechanism are installed on the machine body, and the driving wheel mechanism and the pressing wheel mechanism are in rolling fit with the two sides of the guide rail respectively; and the remote control module is used for remotely controlling start and stop of the detection robot and display of detection results, and the driving wheel mechanism and the detection mechanism are in signal connection with the remote control module. According to the chimney with the inner and outer cylinder detection device, the detection precision and efficiency can be improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel chimneys, in particular to a chimney with an inner and outer tube detection device. Background Art

[0002] The corrosion of the inner and outer tubes of sleeve steel chimneys is a must-check item for chimney maintenance, and the degree of corrosion is directly related to structural safety and normal smoke exhaust. At present, the outer tube of the chimney is mainly observed and measured by visual inspection and handheld thickness gauges in places accessible to workers (spiral ladders, platforms and straight ladders) to evaluate the corrosion of the outer tube. The inner tube is mainly hoisted from the top by cranes and hanging baskets, and the corrosion of the inner tube wall is detected by visual inspection and handheld thickness gauges. This method has a low safety factor and a large detection error. Utility Model Content

[0003] In order to solve the above problems, the utility model aims to provide a chimney with an inner and outer tube detection device, which can realize the detection of chimney thickness and corrosion conditions through the cooperation of a maintenance robot and a guide rail.

[0004] Based on the above problems, the technical solution provided by the utility model is:

[0005] A chimney with an inner and outer cylinder detection device, comprising an outer cylinder and at least one inner cylinder installed in the outer cylinder, and further comprising:

[0006] A guide rail, which is arranged between the outer cylinder and the inner cylinder;

[0007] An inspection robot, used to inspect the thickness and corrosion of the outer cylinder and the inner cylinder, comprising a body, and a driving wheel mechanism, a pressing wheel mechanism and an inspection mechanism installed on the body, wherein the driving wheel mechanism and the pressing wheel mechanism are respectively in rolling cooperation with two sides of the guide rail;

[0008] The remote control module is used to remotely control the start and stop of the detection robot and the display of the detection results. The driving wheel mechanism and the detection mechanism are respectively connected to the remote control module signal.

[0009] In some of the embodiments, the driving wheel mechanism includes two driving wheels rotatably disposed on the fuselage, and a driving assembly drivingly connected to one of the driving wheels, and the driving wheels are in rolling cooperation with the guide rail.

[0010] In some embodiments, the driving assembly includes a driving motor, a driving wheel arranged at a power output end of the driving motor, and a transmission belt connecting the driving wheel and one of the driving wheels.

[0011] In some of the embodiments, two first support shafts cooperating with the two driving wheels are fixed on the fuselage, and the driving wheels are rotatably supported on the first support shafts.

[0012] In some of the embodiments, the pressure wheel mechanism includes at least one pressure wheel assembly, which includes a second support shaft movably arranged on the fuselage, a pressure wheel rotatably supported on the second support shaft, a pressure component arranged at both ends of the second support shaft, and an elastic component connecting the pressure component and the fuselage, wherein the elastic component causes the pressure wheel to tend to approach the guide rail.

[0013] In some of the embodiments, a slide groove for the second support shaft to pass through is provided on the fuselage, and the slide groove extends along the extension and retraction direction of the elastic member.

[0014] In some of the embodiments, the fuselage is further provided with a top wheel mechanism that rolls with the top of the guide rail.

[0015] In some embodiments, the top wheel mechanism includes at least one top wheel assembly, and the top wheel assembly includes a top wheel support fixed to the fuselage and a top wheel rotatably disposed on the top wheel support, and the top wheel is in rolling cooperation with the top of the guide rail.

[0016] In some of the embodiments, the detection mechanism includes two ultrasonic thickness gauges for detecting the thickness of the outer cylinder and the inner cylinder, and two infrared thermal imagers for detecting the corrosion conditions of the outer cylinder and the inner cylinder.

[0017] In some of the embodiments, the detection mechanism is a pulsed eddy current detector.

[0018] Compared with the prior art, the advantages of the utility model are:

[0019] A guide rail and an inspection robot that rolls with the guide rail are set between the outer cylinder and the inner cylinder of the chimney. The inspection robot inspects the thickness and corrosion condition of the outer cylinder and the inner cylinder, thereby improving the inspection accuracy and efficiency and reducing the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic structural diagram of a chimney embodiment with an inner and outer tube detection device according to the utility model;

[0022] Figure 2 This is one of the structural schematic diagrams of the detection robot in the embodiment of the utility model;

[0023] Figure 3 This is the second structural diagram of the detection robot in the embodiment of the utility model;

[0024] in:

[0025] 1. Outer cylinder; 1-1. Manhole; 1-2. Ash cleaning hole; 1-3. Smoke inlet; 1-4. Detection tube;

[0026] 2. Inner tube;

[0027] 3. Guide rails;

[0028] 4. Inspection robot; 4-1. Body; 4-1a. Slide; 4-2. Driving wheel; 4-3. First support shaft; 4-4. Driving wheel; 4-5. Driving motor; 4-6. Transmission belt; 4-7. Pressure wheel; 4-8. Second support shaft; 4-9. Pressure component; 4-10. Elastic component; 4-11. Top wheel; 4-12. Top wheel support; 4-13. Third support shaft; 4-14. Ultrasonic thickness gauge; 4-15. Infrared thermal imager. DETAILED DESCRIPTION

[0029] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the utility model and are not limited to the scope of the utility model. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0030] like Figure 1 , which is a schematic diagram of the structure of an embodiment of the utility model, provides a chimney with an inner and outer cylinder detection device, including an outer cylinder 1 and at least one inner cylinder 2 installed in the outer cylinder 1. In this example, an inner cylinder 2 is installed in the outer cylinder 1.

[0031] In order to facilitate the detection of the thickness and corrosion of the outer cylinder 1 and the inner cylinder 2, a guide rail 3 is provided between the outer cylinder 1 and the inner cylinder 2, and a detection robot 4 for detecting the thickness and corrosion of the outer cylinder 1 and the inner cylinder 2, as well as a remote control module for remotely controlling the detection robot 4 are provided. The guide rail 3 is a T-shaped structure, which is installed on the inner wall of the outer cylinder 1 and located above the manhole 1-1, located in the area opposite to the flue gas inlet 1-3 (i.e., the area where the inner cylinder is severely eroded and corroded), avoiding the cleaning hole 1-2 and the CEMS detection tube 1-4, and the total height of the guide rail 3 and the detection robot 4 is less than the distance from the flange of the inner cylinder 2 to the inner wall of the outer cylinder 1.

[0032] The detection robot 4 includes a body 4-1, and a driving wheel mechanism, a clamping wheel mechanism and a detection mechanism installed on the body 4-1. The remote control module is separately arranged from the body 4-1 and is used to remotely control the body 4-1. The driving wheel mechanism and the clamping wheel mechanism respectively roll with the two sides of the guide rail 3. Specifically, the driving wheel mechanism and the clamping wheel mechanism are respectively installed on both sides of the width direction of the guide rail 3. The driving wheel mechanism and the detection mechanism are respectively connected to the remote control module signal, and the remote control module controls the start and stop of the driving wheel mechanism, and receives, processes and displays the data information monitored by the detection mechanism. The remote control module is a prior art, which is provided with forward, backward and stop control keys, and is also provided with a display screen for displaying the detection results.

[0033] like Figure 2 and Figure 3 As shown, the driving wheel mechanism includes two driving wheels 4-2 rotatably arranged on the fuselage 4-1, and a driving assembly drivingly connected to one of the driving wheels 4-2. The two driving wheels are arranged at intervals along the front and rear directions of the fuselage 4-1 and rollingly cooperate with the guide rail 3. The driving assembly is drivingly connected to the driving wheel 4-2 located in the front, and the driving wheel 4-2 is driven to rotate by the driving assembly, thereby driving the fuselage 4-1 to move forward along the guide rail 3.

[0034] The driving assembly includes a driving motor 4-5, a driving wheel 4-4 arranged at the power output end of the driving motor 4-5, and a transmission belt 4-6 connecting the driving wheel 4-4 and one of the driving wheels 4-2. The driving motor 4-5 rotates to drive the driving wheel 4-4 to rotate, thereby driving the driving wheel 4-2 to rotate.

[0035] In order to facilitate the installation of the driving wheel 4-2, two first support shafts 4-3 cooperating with the two driving wheels 4-2 are fixed on the fuselage 4-1, and the driving wheel 4-2 is rotatably supported on the first support shaft 4-3 via bearings. The fuselage 4-1 is an internal hollow structure, and the first support shaft 4-3 is arranged along the height direction of the fuselage 4-1. The driving wheels 4-2, the driving wheel 4-4 and the transmission belt 4-6 are accommodated inside the fuselage 4-1, and the guide rail 3 partially extends into the fuselage 4-1. The driving motor 4-5 is installed on the outer wall of the fuselage 4-1.

[0036] The pinch wheel mechanism includes at least one pinch wheel assembly. In this example, two pinch wheel assemblies are provided, which are arranged at intervals along the front-rear direction of the fuselage 4-1 and corresponding to the two driving wheels 4-2.

[0037] Specifically, the pressure wheel assembly includes a second support shaft 4-8 movably arranged on the fuselage 4-1, a pressure wheel 4-7 rotatably supported on the second support shaft 4-8, a pressure component 4-9 arranged at both ends of the second support shaft 4-8, and an elastic component 4-10 connecting the pressure component 4-9 and the fuselage 4-1. The pressure component 4-9 is placed on the fuselage 4-1, the second support shaft 4-8 extends along the height direction of the fuselage 4-1, and the pressure wheel 4-7 is accommodated inside the fuselage 4-1. Preferably, the elastic component 4-10 can be a spring, which is in a compressed state so that the pressure wheel 4-7 tends to approach the guide rail 3.

[0038] In order to facilitate the installation of the second support shaft 4-8, a slide groove 4-1a for the second support shaft 4-8 to pass through is provided on the fuselage 4-1. Specifically, slide grooves 4-1a are respectively provided at the upper and lower ends of the fuselage 4-1, and the two ends of the second support shaft 4-8 are respectively placed in the two slide grooves 4-1a. The slide groove 4-1a extends along the extension and contraction direction of the elastic member 4-10. The clamping wheel 4-7 is always pressed against the guide rail 3 through the elastic member 4-10, so that the detection robot 4 always remains on the guide rail 3 and maintains stability during movement.

[0039] In order to improve the stability of the detection robot 4 when it moves on the guide rail 3, a top wheel mechanism that rolls with the top of the guide rail 3 is also provided on the fuselage 4-1, and the top wheel mechanism includes at least one top wheel assembly. In this example, a top wheel assembly is respectively provided on the front and rear sides of the fuselage 4-1. Specifically, the top wheel assembly includes a top wheel support 4-12 fixed on the fuselage 4-1 and a top wheel 4-11 rotatably arranged on the top wheel support 4-12, and the top wheel 4-11 rolls with the top of the guide rail 3.

[0040] Specifically, a through groove 4-1a for the top wheel 4-11 to be placed is provided at the upper end of the fuselage 4-1, and the top wheel support 4-12 includes two L-shaped support plates arranged on both sides of the through groove, and a third support shaft 4-13 is fixed between the two L-shaped support plates, and the top wheel 4-11 is rotatably supported on the third support shaft 4-13.

[0041] In order to facilitate the detection of the close fit between the robot 4 and the guide rail 3, the driving wheel 4-2, the clamping wheel 4-7 and the top wheel 4-11 are all magnetic wheels.

[0042] In this example, the detection mechanism includes two ultrasonic thickness gauges 4-14 for detecting the thickness of the outer tube 1 and the inner tube 2, and two infrared thermal imagers 4-15 for detecting the corrosion of the outer tube 1 and the inner tube 2. The two ultrasonic thickness gauges 1-14 are installed on one side of the fuselage 4-1 in the width direction, and face the outer tube 1 and the inner tube 2 respectively. The two infrared thermal imagers 4-15 are installed on the other side of the fuselage 4-1 in the width direction, and face the outer tube 1 and the inner tube 2 respectively. Four display screens connected to the two ultrasonic thickness gauges 4-14 and the two infrared thermal imagers 4-15 are respectively provided on the remote control device to display the detection data respectively.

[0043] For the inner tube 2 with insulation, it is impossible to use the ultrasonic thickness gauge 4-14 and the infrared thermal imager 4-15 to accurately measure the wall thickness and corrosion degree of the inner tube 2. The detection mechanism can use a pulse eddy current detector, which can detect the corrosion of the inner tube 2 with insulation without removing the insulation layer. With the help of later computer and software processing, the remaining relative wall thickness can be directly displayed, and it can be displayed in the form of C scan, with different color levels indicating the degree of corrosion. The pulse eddy current detector is a prior art, and the utility model will not be repeated.

[0044] During inspection, the inspection robot 4 is placed at the lower end of the guide rail 3, and the staff operates the remote control module. After the inspection robot 4 receives the start signal, the driving component drives the driving wheel 4-2 to make the inspection robot 4 move on the guide rail 3. The thickness and corrosion condition of the outer tube 1 and the inner tube 2 are inspected through the inspection mechanism and the inspection data is transmitted to the display screen of the remote control module.

[0045] In summary, the chimney drives the inner tube detection device to detect the thickness and corrosion condition of the outer tube and inner tube, which improves efficiency and accuracy and reduces safety hazards.

[0046] The above examples are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A chimney with an inner and outer cylinder detection device, comprising an outer cylinder and at least one inner cylinder installed in the outer cylinder, characterized in that: Also includes: A guide rail, which is arranged between the outer cylinder and the inner cylinder; An inspection robot, used to inspect the thickness and corrosion of the outer cylinder and the inner cylinder, comprising a body, and a driving wheel mechanism, a pressing wheel mechanism and an inspection mechanism installed on the body, wherein the driving wheel mechanism and the pressing wheel mechanism are respectively in rolling cooperation with two sides of the guide rail; The remote control module is used to remotely control the start and stop of the detection robot and the display of the detection results. The driving wheel mechanism and the detection mechanism are respectively connected to the remote control module signal.

2. The chimney with inner and outer cylinder detection device according to claim 1, characterized in that: The driving wheel mechanism comprises two driving wheels rotatably arranged on the fuselage, and a driving assembly drivingly connected to one of the driving wheels, and the driving wheel is in rolling cooperation with the guide rail.

3. The chimney with inner and outer cylinder detection device according to claim 2, characterized in that: The driving assembly includes a driving motor, a driving wheel arranged at a power output end of the driving motor, and a transmission belt connecting the driving wheel and one of the driving wheels.

4. The chimney with inner and outer cylinder detection device according to claim 2, characterized in that: Two first support shafts cooperating with the two driving wheels are fixed on the fuselage, and the driving wheels are rotatably supported on the first support shafts.

5. The chimney with inner and outer cylinder detection device according to claim 1, characterized in that: The clamping wheel mechanism includes at least one clamping wheel assembly, which includes a second support shaft movably arranged on the fuselage, a clamping wheel rotatably supported on the second support shaft, a clamping component arranged at both ends of the second support shaft, and an elastic component connecting the clamping component and the fuselage, wherein the elastic component makes the clamping wheel tend to approach the guide rail.

6. The chimney with inner and outer cylinder detection device according to claim 5, characterized in that: The body is provided with a slide groove for the second support shaft to pass through, and the slide groove extends along the extension and retraction direction of the elastic member.

7. The chimney with inner and outer cylinder detection device according to claim 1, characterized in that: The fuselage is also provided with a top wheel mechanism which is in rolling cooperation with the top of the guide rail.

8. The chimney with inner and outer cylinder detection device according to claim 7, characterized in that: The top wheel mechanism includes at least one top wheel assembly, and the top wheel assembly includes a top wheel support fixed to the fuselage and a top wheel rotatably arranged on the top wheel support, and the top wheel is in rolling cooperation with the top of the guide rail.

9. The chimney with inner and outer cylinder detection device according to claim 1, characterized in that: The detection mechanism includes two ultrasonic thickness gauges for detecting the thickness of the outer tube and the inner tube, and two infrared thermal imagers for detecting the corrosion conditions of the outer tube and the inner tube.

10. The chimney with inner and outer cylinder detection device according to claim 1, characterized in that: The detection mechanism is a pulsed eddy current detector.

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