Flue heating surface slagging monitoring device based on machine vision

Abstract

The utility model relates to the technical field of monitoring devices, and discloses a flue heating surface slagging monitoring device based on machine vision, which comprises a flue body and further comprises a mounting seat fixed at the top of the inner wall of the flue body, and the top of the mounting seat is fixedly connected with a connecting block. The angle of the device protection assembly can be adjusted by driving a driving motor, a connecting shaft and a mounting block which are mounted in the protection shell, so that the monitoring range is more comprehensive, a cooling gas pipeline blows cooled air into a cavity formed between the interior of the protection shell body and the monitoring device body, the monitoring device body is cooled, and the monitoring efficiency is improved. And meanwhile, due to the arrangement of the cleaning device, air entering the protection shell body can be compressed and then blown to one end of the glass, and smoke dust is blown away from the glass, so that the slagging condition can be accurately monitored and captured.

Description

Technical Field

[0001] The utility model relates to the technical field of monitoring devices, in particular to a slagging monitoring device for a flue heating surface based on machine vision. Background Art

[0002] A common problem encountered in the operation of thermal power plants, industrial boilers and other combustion equipment is slagging. Usually, the minerals and inorganic components in the coal are converted into ash after combustion in the furnace. The ash is deposited on the heating surface to form slagging. Slagging is a fault phenomenon that seriously affects the normal and stable operation of the boiler on the flue gas side of the boiler, resulting in reduced heat exchange efficiency, ash blockage in the tail flue, affecting flue gas emissions, and severe slagging may even lead to ash blockage in the tail flue, causing equipment damage.

[0003] However, the current monitoring device is fixedly installed in the flue during use. After installation, the angle cannot be adjusted, and the monitoring is not comprehensive. In addition, the flue gas temperature will affect the service life of the internal components during use. At the same time, the device will form dirt due to the flue gas, affecting the accuracy of monitoring. It requires manual cleaning on a regular basis, which consumes manpower and material resources. Utility Model Content

[0004] The purpose of the utility model is to provide a flue heating surface slagging monitoring device based on machine vision to solve the problems of being unable to adjust the angle of the monitoring device, incomplete monitoring, and the need for manual regular cleaning of the dirt formed by the flue gas.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a machine vision-based slagging monitoring device for a flue heating surface, comprising a flue body, and further comprising: a mounting base fixed to the top of the inner wall of the flue body, a connecting block fixedly connected to the top of the mounting base, a connecting shaft rotatably connected to one side of the connecting block, a mounting block mounted on the outer wall of the connecting shaft, and a device protection assembly fixedly mounted on the top of the mounting block;

[0006] The monitoring device body is installed in the inner cavity of the device protection component, and the monitoring device body includes a high-definition camera, an infrared thermal imager and an ultrasonic device. A cleaning device is installed at one end of the interior of the device protection component. The outer wall of the device protection component is fixedly connected to a drive protection shell, and a drive motor is installed inside the drive protection shell. One end of the connecting shaft passes through the drive protection shell and is installed at the output end of the drive motor. One side of the drive protection shell is fixedly connected to one side of the mounting block.

[0007] Preferably, the device protection assembly includes a protective shell body, a mounting groove, a cover plate, a sealing strip, a sealing mounting ring, glass, a connecting hole and a mounting cavity. A mounting groove is opened at one end of the protective shell body, and a cover plate is installed on the inner wall of the mounting groove by fastening bolts. A sealing strip is fixedly installed at one end of the cover plate, and the outer wall of the sealing strip is movably connected to the groove opened at one end of the inner wall of the mounting groove.

[0008] Preferably, two sealing mounting rings are fixedly connected to the other end of the inner wall of the protective shell body, and glass is installed in the cavity between the two sealing mounting rings.

[0009] Preferably, a connecting hole is provided on the inner wall of the protective shell body, and the inner wall of the connecting hole is fixedly connected to the outer wall of the driving protective shell.

[0010] Preferably, four installation cavities are provided in a circular array inside the protective shell body, and two ends of the installation cavity are respectively arranged on one side of two sealing installation rings, and a cleaning device is installed on the inner wall of the installation cavity.

[0011] Preferably, the cleaning device includes an air pipe, a gas compression pump and a nozzle, a gas compression pump is installed at one end of the air pipe, a nozzle is installed on the top of the gas compression pump, and the outer wall of the nozzle passes through and is fixedly installed on the inner wall of the protective shell body.

[0012] Preferably, one end of the cover plate is provided with port 1 and port 2, a cable conduit is provided inside the port 1, a cable is provided inside the cable conduit, and one end of the cable is electrically connected to the monitoring device body.

[0013] Preferably, the second port is located in the inner cavity between the protective shell body and the monitoring device body, and a cooling gas pipeline is provided inside the second port.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model, first of all, when in use, can adjust the angle of the device protection component by driving the driving motor, connecting shaft and mounting block installed inside the protective shell, so that the monitoring range is more comprehensive. The coordinated use of the high-definition camera, infrared thermal imager and ultrasonic device can monitor the slagging situation inside the flue body more comprehensively, and transmit real-time data to the staff's receiving device through the cable installed in the cable conduit for the staff to analyze and view. The cooling gas pipe blows the cooling air into the cavity formed between the protective shell body and the monitoring device body to cool the monitoring device body and prevent the high temperature inside the flue body from affecting and damaging the monitoring device body. At the same time, the setting of the cleaning device can compress the air entering the protective shell body and blow it to one end of the glass, blowing the smoke and dust away from the glass so as to accurately monitor and capture the slagging situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a preferred embodiment of the machine vision-based flue heating surface slagging monitoring device provided by the present invention;

[0017] Figure 2 A schematic diagram of the cross-sectional structure provided by the utility model;

[0018] Figure 3 A schematic structural diagram of the cleaning device provided by the present invention;

[0019] Figure 4 This is a schematic diagram of the overall installation structure provided by the utility model.

[0020] In the figure: 1. Flue body; 2. Mounting seat; 3. Connecting block; 4. Connecting shaft; 5. Mounting block; 6. Device protection assembly; 601. Protective shell body; 602. Mounting groove; 603. Cover plate; 604. Sealing strip; 605. Sealing mounting ring; 606. Glass; 607. Connecting hole; 608. Mounting cavity; 7. Monitoring device body; 701. High-definition camera; 702. Infrared thermal imager; 703. Ultrasonic device; 8. Cleaning device; 801. Gas pipe; 802. Gas compression pump; 803. Nozzle; 9. Drive protective shell; 10. Port 1; 11. Port 2; 12. Cable conduit; 13. Cooling gas pipeline. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 As shown, a machine vision-based slagging monitoring device for a flue heating surface comprises a flue body 1, and further comprises: a mounting base 2 fixed to the top of the inner wall of the flue body 1, a connecting block 3 fixedly connected to the top of the mounting base 2, a connecting shaft 4 rotatably connected to one side of the connecting block 3, a mounting block 5 mounted on the outer wall of the connecting shaft 4, and a device protection assembly 6 fixedly mounted on the top of the mounting block 5;

[0023] A monitoring device body 7 is installed in the inner cavity of the device protection component 6. The monitoring device body 7 includes a high-definition camera 701, an infrared thermal imager 702 and an ultrasonic device 703. The high-definition camera 701 can transmit the image situation inside the flue body 1. The infrared thermal imager 702 detects the surface temperature distribution of the flue heating surface to determine the slagging situation. The ultrasonic device 703 measures the thickness of the slagging layer by sending and receiving ultrasonic signals. A cleaning device 8 is installed at one end of the interior of the device protection component 6 to clean the observation window of the device protection component 6. The outer wall of the device protection component 6 is fixedly connected to a drive protection shell 9, and a drive motor is installed inside the drive protection shell 9. One end of the connecting shaft 4 passes through the drive protection shell 9 and is installed at the output end of the drive motor. One side of the drive protection shell 9 is fixedly connected to one side of the mounting block 5. The drive motor can adjust the angle of the drive protection shell 9 and the device protection component 6 fixedly connected to the outer wall of the mounting block 5.

[0024] refer to Figure 2 As shown, the device protection assembly 6 includes a protective shell body 601, a mounting groove 602, a cover plate 603, a sealing strip 604, a sealing mounting ring 605, a glass 606, a connecting hole 607 and a mounting cavity 608. One end of the protective shell body 601 is provided with a mounting groove 602, and a cover plate 603 is installed on the inner wall of the mounting groove 602 by fastening bolts. A sealing strip 604 is fixedly installed on one end of the cover plate 603, and the outer wall of the sealing strip 604 is movably connected to the inner wall of the mounting groove 602. The groove can ensure airtightness to protect the internal electrical components. The other end of the inner wall of the protective shell body 601 is fixedly connected to two sealing mounting rings 605. Glass 606 is installed in the cavity between the two sealing mounting rings 605 to ensure sealing and prevent smoke and dust from entering the device and affecting the service life of the device. A connecting hole 607 is opened on the inner wall of the protective shell body 601, and the inner wall of the connecting hole 607 is fixedly connected to the outer wall of the drive protective shell 9, and can be connected to the protective shell body 601.

[0025] refer to Figure 2 and Figure 3As shown, the interior of the protective shell body 601 is provided with four installation cavities 608 in a circular array, and the two ends of the installation cavity 608 are respectively arranged on one side of two sealing installation rings 605 to guide the cooling gas in the protective shell body 601. A cleaning device 8 is installed on the inner wall of the installation cavity 608. The cleaning device 8 includes an air pipe 801, a gas compression pump 802 and a nozzle 803. A gas compression pump 802 is installed at one end of the air pipe 801, and a nozzle 803 is installed on the top of the gas compression pump 802. The outer wall of the nozzle 803 passes through and is fixedly installed on the inner wall of the protective shell body 601. The gas is introduced into the gas compression pump 802 through the air pipe 801, and the compressed gas is blown toward the high-definition camera 701 through the nozzle 803 to clean the smoke and dust on the monitoring window, so as to accurately monitor and capture the slagging situation.

[0026] One end of the cover 603 is provided with port 10 and port 2 11. A cable conduit 12 is provided inside the port 10. A cable is provided inside the cable conduit 12, and one end of the cable is electrically connected to the monitoring device body 7. The data monitored by the monitoring device body 7 can be transmitted to an external display for analysis and viewing by the staff.

[0027] Port 2 11 is located in the inner cavity between the protective shell body 601 and the monitoring device body 7, and a cooling gas pipe 13 is provided inside the port 2 11. The cooling gas pipe 13 can blow cooling gas to the monitoring device body 7 for cooling, ensuring that the monitoring device body 7 can operate normally without being affected by high temperature.

[0028] Working principle: The top of the inner wall of the flue body 1 is fixedly connected with a mounting seat 2, the top of the mounting seat 2 is fixedly connected with a connecting block 3, and the outer wall of the connecting shaft 4 connected by rotation is installed with a mounting block 5, the mounting block 5 can rotate on the outer wall of the connecting shaft 4, and a driving motor is installed through the outer wall of the connecting shaft 4 to penetrate the driving protective shell 9. The driving motor can adjust the angle of the device protection component 6 fixedly connected to the driving protective shell 9 and the outer wall of the mounting block 5. The device protection component 6 includes a protective shell body 601, a mounting groove 602, a cover plate 603, a sealing strip 604, a sealing mounting ring 605, a glass 606, a connecting hole 607 and an installation hole 608. The cavity 608 and the inner cavity of the protective shell body 601 are provided with a monitoring device body 7, which includes a high-definition camera 701, an infrared thermal imager 702 and an ultrasonic device 703. The high-definition camera 701 can transmit the image situation inside the flue body 1, and the infrared thermal imager 702 detects the surface temperature distribution of the flue heating surface to determine the slagging situation. The ultrasonic device 703 measures the thickness of the slagging layer by sending and receiving ultrasonic signals, and can monitor the inner wall of the flue body 1. A mounting groove 602 is provided at one end of the protective shell body 601, and a cover plate 603 is installed on the inner wall of the mounting groove 602 by bolts. One end of the cover 603 is fixedly connected to a sealing strip 604, which can ensure airtightness and protect the internal electrical components. One end of the inner wall of the protective shell body 601 is fixedly connected to two sealing mounting rings 605, and a glass 606 is installed between the two sealing mounting rings 605. A connecting hole 607 is opened on the inner wall of the protective shell body 601, and the inner wall of the connecting hole 607 is fixedly connected to the outer wall of the driving protective shell 9. One end of the inner part of the protective shell body 601 is provided with four mounting cavities 608 in a circular array, and a cleaning device 8 is installed inside the mounting cavity 608. One end of the cover 603 is provided with a port 10 and a port 2 11, and the inner part of the port 10 is provided with a cleaning device 8. A cable conduit 12 is provided in the interior of the cable conduit 12, and a cable is provided inside the cable conduit 12 to be electrically connected to the monitoring device body 7, which can transmit the data monitored by the monitoring device body 7 to an external display for analysis and viewing by the staff. A cooling gas pipe 13 is provided inside the port 2 11, and the cooling gas pipe 13 can blow cooling gas to the monitoring device body 7 for cooling, ensuring that the monitoring device body 7 can work normally without being affected by high temperature, and introduce gas into the gas compression pump 802 through the gas pipe 801, and blow the compressed gas to the high-definition camera 701 through the nozzle 803 to clean the smoke and dust on the monitoring window.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for monitoring slagging on the heating surface of a flue based on machine vision, used for internal detection of a flue body (1), characterized in that: include: A mounting seat (2) is fixed to the top of the inner wall of the flue body (1), a connecting block (3) is fixedly connected to the top of the mounting seat (2), a connecting shaft (4) is rotatably connected to one side of the connecting block (3), a mounting block (5) is mounted on the outer wall of the connecting shaft (4), and a device protection assembly (6) is fixedly mounted on the top of the mounting block (5); A monitoring device body (7) is installed in the inner cavity of a device protection component (6), wherein the monitoring device body (7) comprises a high-definition camera (701), an infrared thermal imager (702), and an ultrasonic device (703); a cleaning device (8) is installed at one end inside the device protection component (6); a drive protection shell (9) is fixedly connected to the outer wall of the device protection component (6); a drive motor is installed inside the drive protection shell (9); one end of the connecting shaft (4) passes through the drive protection shell (9) and is installed at the output end of the drive motor; and one side of the drive protection shell (9) is fixedly connected to one side of the mounting block (5).

2. The device for monitoring slagging on the flue heating surface based on machine vision according to claim 1, characterized in that: The device protection assembly (6) comprises a protective shell body (601), a mounting groove (602), a cover plate (603), a sealing strip (604), a sealing mounting ring (605), a glass (606), a connecting hole (607) and a mounting cavity (608); a mounting groove (602) is provided at one end of the protective shell body (601); a cover plate (603) is installed on the inner wall of the mounting groove (602) by means of fastening bolts; a sealing strip (604) is fixedly installed at one end of the cover plate (603); and an outer wall of the sealing strip (604) is movably connected to a notch provided at one end of the inner wall of the mounting groove (602).

3. The device for monitoring slagging on the flue heating surface based on machine vision according to claim 2, characterized in that: Two sealing mounting rings (605) are fixedly connected to the other end of the inner wall of the protective shell body (601), and glass (606) is installed in the cavity between the two sealing mounting rings (605).

4. The device for monitoring slagging on the flue heating surface based on machine vision according to claim 2, characterized in that: A connection hole (607) is provided on the inner wall of the protective shell body (601), and the inner wall of the connection hole (607) is fixedly connected to the outer wall of the driving protective shell (9).

5. The device for monitoring slagging on the flue heating surface based on machine vision according to claim 2, characterized in that: The interior of the protective shell body (601) is provided with four installation cavities (608) in a circular array, and the two ends of the installation cavity (608) are respectively arranged on one side of two sealing installation rings (605), and a cleaning device (8) is installed on the inner wall of the installation cavity (608).

6. The device for monitoring slagging on the flue heating surface based on machine vision according to claim 1, characterized in that: The cleaning device (8) comprises an air delivery pipe (801), a gas compression pump (802) and a nozzle (803), wherein the gas compression pump (802) is installed at one end of the air delivery pipe (801), the nozzle (803) is installed on the top of the gas compression pump (802), and the outer wall of the nozzle (803) is fixedly installed on the inner wall of the protective shell body (601).

7. The device for monitoring slagging on the flue heating surface based on machine vision according to claim 2, characterized in that: One end of the cover plate (603) is provided with port one (10) and port two (11), a cable conduit (12) is provided inside the port one (10), a cable is provided inside the cable conduit (12), and one end of the cable is electrically connected to the monitoring device body (7).

8. The device for monitoring slagging on the flue heating surface based on machine vision according to claim 7, characterized in that: The second port (11) is located in the inner cavity between the protective shell body (601) and the monitoring device body (7), and a cooling gas pipeline (13) is provided inside the second port (11).

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