Movably-mounted non-contact boiler expansion monitoring device

Abstract

The invention belongs to the technical field of boiler monitoring, and particularly relates to a non-contact boiler expansion monitoring device capable of being movably installed. Comprising an expansion displacement measuring device, a movable installation assembly and a marker, the expansion displacement measuring device is fixedly arranged on the movable installation assembly, and the marker is directly or indirectly arranged on the outer wall of a boiler to be monitored. The expansion displacement measuring device is aligned with the marker during expansion monitoring operation; according to the invention, the monitoring points can be deployed conveniently and quickly without complex transformation of the boiler body, the boiler expansion data can be acquired in real time in a high-precision and non-contact manner, a precise basis is provided for boiler operation and maintenance, and the boiler operation safety and management efficiency are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of boiler monitoring, and particularly relates to a movable and non-contact boiler expansion monitoring device. Background Art

[0002] With the continuous development of industrial production, boilers, as key heat energy conversion equipment, their operational reliability is of crucial importance. During the operation of a boiler, due to the heating effect of the internal medium, different parts of the furnace body are unevenly heated, and inevitably, thermal expansion occurs.

[0003] Most traditional boiler expansion monitoring devices are fixedly installed, with many drawbacks. For example, the installation is complex, requiring the installation and commissioning of fixed components during the boiler construction or shutdown maintenance stage, which is not convenient for flexible adjustment according to the actual operating conditions of the boiler. Moreover, the monitoring accuracy of some devices is not high, and false alarms or missed alarms are likely to occur.

[0004] In addition, for existing boilers that have been put into use and do not have reserved monitoring interfaces, it is difficult and costly to install additional monitoring devices later. Although non-contact monitoring technology avoids problems caused by contact to a certain extent, existing non-contact devices are often customized for specific boiler models, with poor versatility, inconvenient for mobile installation, and difficult to flexibly meet the monitoring requirements under different working conditions, thus unable to meet the diverse and efficient operation and maintenance requirements of the current industrial site.

[0005] Meanwhile, during the daily operation of a boiler, in addition to the regular monitoring of fixed measurement points, there are often some temporary special situations that require special attention to the expansion status of specific areas. For example, during the trial operation stage after local renovation or repair of the boiler, or when there is suspicion of potential expansion anomalies in a certain area, a movable monitoring device can be quickly placed at the relevant location, accurately capture the expansion dynamics, and provide key data in a timely manner, without the need to preset a large number of measurement points in advance like the traditional method, thus avoiding unnecessary cost and resource waste. Summary of the Invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a movable and non-contact boiler expansion monitoring device, which overcomes the defects of the existing boiler expansion monitoring technology, enables the convenient and rapid deployment of monitoring points without complex modification of the boiler body, and can obtain boiler expansion data in real time in a high-precision and non-contact manner, providing accurate basis for boiler operation and maintenance, and improving the operation safety and management efficiency of the boiler.

[0007] The object of the present invention is achieved as follows: A movable and non-contact boiler expansion monitoring device includes an expansion displacement measuring device, a movable mounting assembly, and a marker. The expansion displacement measuring device is fixedly arranged on the movable mounting assembly. The marker is arranged on the outer wall of the boiler to be monitored directly or indirectly, and the expansion displacement measuring device is aligned with the marker during the expansion monitoring operation. The movable mounting assembly can drive the expansion displacement measuring device to move together to move the expansion displacement measuring device to a designated monitoring operation measuring point, and can fix the movable mounting assembly to ensure the stability of the expansion displacement measuring device during the monitoring operation.

[0008] Further, the movable mounting assembly includes a base, a bracket is fixedly arranged on the base, a pan-tilt head is arranged at the top of the bracket, and the expansion displacement measuring device is arranged on the pan-tilt head.

[0009] A moving mechanism can be arranged at the bottom of the base to enable the device to move flexibly around the boiler, so as to quickly move the expansion displacement measuring device to a designated expansion measuring point to monitor the expansion condition of the boiler in real time through it.

[0010] Further, a moving wheel assembly is arranged at the bottom of the base, and the moving wheel assembly is a universal wheel; the arrangement of the universal wheel facilitates the steering operation of the device during the moving process.

[0011] Further, support feet are also arranged at the bottom of the base. The support feet are used to support the base on the ground and at the same time lift the moving wheel assembly off the ground; the moving wheel assembly can be lifted by the support feet to leave the ground.

[0012] Further, the expansion displacement measuring device is a high-resolution industrial camera sensor for accurately sensing the minute expansion changes of the boiler. The marker is an image logo composed of four groups of square patterns arranged in a two-row and two-column manner with equal horizontal and vertical spacings.

[0013] Further, the expansion displacement measuring device includes a high-definition industrial camera and a supplementary light source. The supplementary light source is used to provide a supplementary light function for the high-definition industrial camera when the lighting is poor to ensure clear image recognition.

[0014] Further, the connection method between the marker and the outer wall of the boiler to be monitored adopts different fixing methods according to different boiler forms. For boilers without insulation layers, the marker is fixedly connected to the outer wall of the boiler by magnetic materials. For boilers with insulation layers, the marker is fixed to the channel steel led out at the expansion measuring point by means of a hoop.

[0015] Further, after the expansion displacement measuring device is aligned with the marker, the distance between the marker and the expansion displacement measuring device is 40 - 50 cm.

[0016] Further, it further includes an expansion indicator bracket connected to the boiler body to be measured. An expansion indicator sleeve is connected to the end of the expansion indicator bracket, and the marker is arranged on the expansion indicator sleeve; the marker is indirectly connected to the boiler body to be measured through the expansion indicator bracket.

[0017] Further, an expansion indicator scale needle is connected to the expansion indicator sleeve, and an expansion indicator scale disk is arranged below the expansion indicator scale needle; when the boiler body to be measured undergoes expansion deformation during operation, the expansion change condition of the boiler body to be measured can be visually shown on the expansion indicator scale disk.

[0018] The beneficial effects of the present invention: A movable and non - contact boiler expansion monitoring device of the present invention is composed of an expansion displacement measuring device, a movable mounting component and a marker. The expansion displacement measuring device is fixedly arranged on the movable mounting component, and the marker is arranged on the outer wall of the boiler to be monitored directly or indirectly, and the expansion displacement measuring device is aligned with the marker during the expansion monitoring operation; the movable mounting component can drive the expansion displacement measuring device to move together to move the expansion displacement measuring device to a specified monitoring operation measuring point. After reaching the specified monitoring operation measuring point, the movable mounting component can be fixed to ensure the stability of the expansion displacement measuring device during the monitoring operation. The expansion displacement measuring device is aligned with the marker. After the boiler body to be monitored undergoes expansion deformation, the marker moves with it and can be monitored by the expansion displacement measuring device; A movable and non - contact boiler expansion monitoring device of the present invention can realize that without complex transformation of the boiler body, monitoring points can be deployed conveniently and quickly, and boiler expansion data can be obtained in real - time in a high - precision and non - contact manner, providing accurate basis for boiler operation and maintenance, and improving the operation safety and management efficiency of the boiler. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a structural schematic diagram of a movable and non - contact boiler expansion monitoring device.

[0021] Figure 2 It is a schematic diagram of a marker in a non-contact boiler expansion monitoring device that can be movably installed.

[0022] In the figure: 1. Boiler body; 2. Expansion indicator bracket; 3. Expansion indicator sleeve; 4. Expansion indicator dial; 5. Expansion indicator scale needle; 6. Marker; 7. Expansion displacement measurement device; 8. Cloud platform; 9. Bracket; 10. Base; 11. Movable wheel assembly; 12. Support feet; 13. Data processing device. Specific embodiments

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] It should be noted that all directional indications (such as up-down-left-right-front-back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. The described connection can be a direct connection or an indirect connection.

[0027] As Figure 1-2 shown, a non-contact boiler expansion monitoring device that can be movably installed according to the present invention includes an expansion displacement measurement device 7, a movable installation component, and a marker 6. The expansion displacement measurement device 7 is fixedly arranged on the movable installation component. The marker 6 is arranged on the outer wall of the boiler to be monitored directly or indirectly, and the expansion displacement measurement device 7 is directly opposite to the marker 6 during the expansion monitoring operation. The movable installation component can drive the expansion displacement measurement device 7 to move together to move the expansion displacement measurement device 7 to a specified monitoring operation measurement point, and the movable installation component can be fixed to ensure the stability of the expansion displacement measurement device 7 during the monitoring operation.

[0028] Boilers of different types and specifications have different structural layouts and thermal expansion characteristics. Fixed-installation monitoring devices are customized for specific boilers and are difficult to modify once installed. When the boiler is upgraded or the process is adjusted, and the monitoring point requirements change, it is almost impossible to reuse them. The movable installation method can easily handle this situation. Just move the monitoring device to the new key position and adjust parameters such as the height, angle, and position of the installation bracket to adapt to the new working conditions. One set of devices can serve multiple boilers, with strong versatility and reduced equipment investment costs.

[0029] Further, in one embodiment, the movable installation component includes a base 10, a bracket 9 is fixedly arranged on the base 10, and a pan-tilt 8 is arranged at the top of the bracket 9. The expansion displacement measuring device 7 is arranged on the pan-tilt 8.

[0030] A moving mechanism can be arranged at the bottom of the base 10 to facilitate the flexible movement of the device around the boiler through it, so as to quickly move the expansion displacement measuring device 7 to the designated expansion measurement point to monitor the expansion of the boiler in real time through it; after moving the expansion displacement measuring device 7 to the designated expansion measurement point, the overall height of the bracket 9 can be adjusted to adjust the height of the expansion displacement measuring device 7 to correspond to the height of the marker 6. At the same time, the angle of the expansion displacement measuring device 7 can be further finely adjusted through the pan-tilt 8 to ensure its levelness and alignment with the marker 6.

[0031] Further, in one embodiment, a moving wheel assembly 11 is arranged at the bottom of the base 10, which can provide support for the device through the moving wheel assembly 11 and facilitate the rapid movement of the device on the ground. The moving wheel assembly 11 is a universal wheel; the setting of the universal wheel facilitates the steering operation during the movement of the device, further ensuring the quickness and stability of its movement and steering.

[0032] Further, in one embodiment, support feet 12 are also arranged at the bottom of the base 10. The support feet 12 are used to support the base 10 on the ground and at the same time lift the moving wheel assembly 11 off the ground; after moving the device to the designated boiler expansion monitoring point by the support of the moving wheel assembly 11 for the base 10, the moving wheel assembly 11 can be lifted by the support feet 12 to make it leave the ground, so as to directly support the base 10 through the support feet 12 to ensure the stability of the device during the monitoring operation.

[0033] Further, the support feet 12 are connected to the base 10 by bolts. By turning the bolts, the height of the lower ends of the support feet from the ground can be adjusted. After moving the device to the designated boiler expansion monitoring point by means of the mobile wheel assembly 11 supporting the base 10, turn the bolts until their lower ends support on the ground and the casters 11 are lifted off the ground. At the same time, ensure the level of the base 10, and the fixation and stable support of the device can be achieved, ensuring the stability of the expansion displacement measuring device 7 during the expansion monitoring operation.

[0034] Further, in one embodiment, the expansion displacement measuring device 7 is a high-resolution industrial camera sensor, which is used to accurately sense the minute expansion changes of the boiler and monitor the expansion condition of the boiler in real time. The marker 6 is an Figure 2 image logo as shown, composed of 4 groups of square patterns arranged in a two-row and two-column layout with equal horizontal and vertical spacings. The side length of the large square formed by the centroids of the 4 squares is L.

[0035] Further, in one embodiment, the expansion displacement measuring device 7 includes a high-definition industrial camera and a supplementary light source. The supplementary light source is used to provide supplementary lighting for the high-definition industrial camera in case of poor lighting conditions to ensure clear image recognition, thereby ensuring the accuracy of expansion monitoring.

[0036] Further, in one embodiment, the connection method between the marker 6 and the outer wall of the boiler to be monitored adopts different fixing methods according to different boiler forms. For boilers without insulation layers, the marker 6 is fixedly connected to the outer wall of the boiler by magnetic materials. For boilers with insulation layers, the marker 6 is fixed to the channel steel led out at the expansion measurement point by means of a hoop.

[0037] Further, in one embodiment, after the expansion displacement measuring device 7 is aligned with the marker 6, the distance between the marker 6 and the expansion displacement measuring device 7 is 40 - 50 cm. After adjusting the distance between the marker 6 and the expansion displacement measuring device 7, the base 10 is then fixed by the support feet 12.

[0038] Further, in one embodiment, it further includes an expansion indicator bracket 2 connected to the boiler body 1 to be measured. The end of the expansion indicator bracket 2 is connected with an expansion indicator sleeve 3, and the marker 6 is arranged on the expansion indicator sleeve 3. The marker 6 is indirectly connected to the boiler body 1 to be measured through the expansion indicator bracket 2. When the boiler body 1 to be measured undergoes expansion deformation during operation, it will sensitively be reflected to the marker 6 through the expansion indicator bracket 2 and monitored by the expansion displacement measuring device 7.

[0039] Further, in one embodiment, the expansion indicator sleeve 3 is connected to an expansion indicator scale needle 5, and an expansion indicator scale disk 4 is arranged below the expansion indicator scale needle 5; when the boiler body 1 to be measured undergoes expansion deformation during operation, the expansion indicator scale needle 5 will be driven to move through the expansion indicator bracket 2 and the expansion indicator sleeve 3, and then be marked on the expansion indicator scale disk 4, visually showing the expansion change of the boiler body 1 to be measured.

[0040] Further, in one embodiment, a data processing device 13 is arranged on the base 10, and the data processing device 13 is connected to the expansion displacement measuring device 7 to process and analyze the monitoring data. When the monitored expansion value exceeds a preset threshold, an alarm signal can be sent through an alarm device. The data processing device 13 can process and store the monitoring data in real time, and can transmit the data to a remote monitoring terminal wirelessly.

[0041] Further, in one embodiment, the expansion displacement measuring device 7 uses an industrial camera with low illuminance and high frame rate (not less than 30fps), a resolution of 3840×2160, a sensor type of 1 / 1.8" Progressive Scan CMOS, and is equipped with a 3.2mm wide-angle lens, which can cover a large area of the boiler surface. It transmits the image to the data processing device 13, and the data processing device 13 uses an advanced image recognition algorithm to analyze the collected continuous image frames and calculate the three-dimensional spatial change of the expansion marker, that is, the boiler expansion change.

[0042] In summary, a movable and non-contact boiler expansion monitoring device of the present invention is composed of an expansion displacement measuring device 7, a movable mounting assembly, and a marker 6. The expansion displacement measuring device 7 is fixedly arranged on the movable mounting assembly. The marker 6 is arranged on the outer wall of the boiler to be monitored directly or indirectly, and the expansion displacement measuring device 7 is aligned with the marker 6 during the expansion monitoring operation. The expansion displacement measuring device 7 can be driven by the movable mounting assembly to move together, so as to move the expansion displacement measuring device 7 to a designated monitoring operation measuring point. After reaching the designated monitoring operation measuring point, the movable mounting assembly can be fixed to ensure the stability of the expansion displacement measuring device 7 during the monitoring operation. The expansion displacement measuring device 7 is aligned with the marker 6. After the boiler body to be monitored expands and deforms, the marker 6 moves with it and can be monitored by the expansion displacement measuring device 7. A movable and non-contact boiler expansion monitoring device of the present invention can realize the convenient and rapid deployment of monitoring points without complex transformation of the boiler body, obtain boiler expansion data in real time in a high-precision and non-contact manner, provide accurate basis for boiler operation and maintenance, and improve the operation safety and management efficiency of the boiler.

[0043] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A non-contact boiler expansion monitoring device that can be movably installed, characterized in that, It includes an expansion displacement measuring device (7), a mobile mounting assembly, and a marker (6). The expansion displacement measuring device (7) is fixedly arranged on the mobile mounting assembly. The marker (6) is arranged on the outer wall of the boiler to be monitored directly or indirectly, and the expansion displacement measuring device (7) is aligned with the marker (6) during the expansion monitoring operation.

2. The non-contact boiler expansion monitoring device that can be movably installed according to claim 1, characterized in that, The mobile mounting assembly includes a base (10). A bracket (9) is fixedly arranged on the base (10). A pan-tilt (8) is arranged at the top of the bracket (9). The expansion displacement measuring device (7) is arranged on the pan-tilt (8).

3. The non-contact boiler expansion monitoring device that can be movably installed according to claim 2, characterized in that, A mobile wheel assembly (11) is arranged at the bottom of the base (10). The mobile wheel assembly (11) is a universal wheel.

4. The non-contact boiler expansion monitoring device that can be movably installed according to claim 3, characterized in that Support feet (12) are also arranged at the bottom of the base (10). The support feet (12) are used to support the base (10) on the ground and at the same time lift the mobile wheel assembly (11) off the ground.

5. The non-contact boiler expansion monitoring device that can be movably installed according to claim 1, wherein, The expansion displacement measuring device (7) is a high-resolution industrial camera sensor. The marker (6) is an image logo composed of four groups of square patterns arranged in a two-row and two-column manner with equal horizontal and vertical spacings.

6. The non-contact boiler expansion monitoring device capable of being movably installed according to claim 5, characterized in that, The expansion displacement measuring device (7) includes a high-definition industrial camera and a supplementary light source. The supplementary light source is used to provide supplementary lighting for the high-definition industrial camera when the lighting is poor.

7. The non-contact boiler expansion monitoring device that can be movably installed according to claim 1, characterized in that, The connection method between the marker (6) and the outer wall of the boiler to be monitored adopts different fixing methods according to different boiler forms. For boilers without a thermal insulation layer, it is fixedly connected to the outer wall of the boiler using magnetic materials. For boilers with a thermal insulation layer, the marker (6) is fixed to the channel steel led out at the expansion measurement point by using a hoop.

8. The non-contact boiler expansion monitoring device that can be movably installed according to claim 1, characterized in that, After the expansion displacement measuring device (7) is aligned with the marker (6), the distance between the marker (6) and the expansion displacement measuring device (7) is (40) to (50) cm.

9. The non-contact boiler expansion monitoring device capable of being movably installed according to claim 1, characterized in that, It also includes an expansion indicator bracket (2) connected to the boiler body (1) to be measured. An expansion indicator sleeve (3) is connected to the end of the expansion indicator bracket (2). The marker (6) is arranged on the expansion indicator sleeve (3).

10. The non-contact boiler expansion monitoring device capable of being movably installed according to claim 9, characterized in that, An expansion indicator scale needle (5) is connected to the expansion indicator sleeve (3). An expansion indicator scale disk (4) is arranged below the expansion indicator scale needle (5).

Images