Dual-camera high-temperature endoscopic imaging device
By designing a dual-camera high-temperature endoscopy imaging device inside a high-temperature kiln, the problem of observing blind spots in the prior art is solved, and the complete image acquisition and real-time monitoring of the inside of the kiln under a high-temperature environment is realized, and production safety and Economic benefits.
Patent Information
- Application Number
- CN202420685367.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-04-07
AI Technical Summary
The existing internal imaging devices of high-temperature kilns can only be observed through one camera, and there are large-scale observation blind spots, especially in high-temperature environments, which cannot effectively detect the refractory material conditions inside the kilns, resulting in production accidents and economic losses.
Design a dual-camera high-temperature endoscopy imaging device, including a front-view camera and a side-view camera. Through a double-layer air-cooled structure and temperature sensor, it can work stably in a high-temperature environment, and perform 360 from both direct and side-view directions. 3D observation.
It realizes large-scale three-dimensional observations inside the high-temperature kiln, can promptly detect damage to refractory materials, avoid production accidents and economic losses, and provides on-site storage and display functions to facilitate subsequent analysis.
Smart Images
Figure CN222515330U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of internal imaging of high-temperature kilns, in particular to a dual-camera high-temperature endoscopic imaging device. Background Art
[0002] High-temperature kilns are thermal devices used for burning, smelting, heating and other processes of materials or workpieces. They are mainly used in metallurgy, building materials, electricity, machinery and other industries. High-temperature kilns are usually closed structures that achieve a high furnace environment temperature by burning gas or solid fuel inside. Such kilns include hot air furnaces, heating furnaces, coal-fired boilers, etc. There is also a type of kiln that does not have internal combustion and is used to cool high-temperature solid materials, such as the dry quenching coke oven in the coking industry. Kilns have various structural forms and different internal processes, but the internal environment temperature of the kiln is usually high, up to thousands of degrees Celsius. In order to meet the requirements of heat insulation, heat preservation, wear resistance, and impact resistance, refractory bricks are usually built or refractory materials are sprayed inside the furnace. Refractory materials play a decisive role in the normal production, safe operation, environmental protection and energy saving of kilns.
[0003] In daily production, we should pay attention to the condition of the refractory materials in the furnace at any time, especially the special parts such as the top of the furnace and the supporting part, and check whether the refractory materials are damaged, including burning, erosion, collapse, etc. The refractory materials should be repaired in time to avoid production accidents. Figure 2 The refractory material of the inner wall 18 of the annular flue of the coke dry quenching oven 17 in the coking industry is always under the wear and tear of the high-temperature coke and the extrusion of gravity, and the inner wall is easy to deform or even collapse; the inclined leg 19 in the furnace forms thermal stress due to the change of the temperature gradient of the environment, and the heavy weight of the support, as the use time increases, the refractory material of the leg will become loose and cracked. If the deformation of the annular flue and the cracking of the inclined leg are not discovered and measures are not taken in time, allowing them to develop will lead to serious production accidents and economic losses. However, since the furnace structure is generally closed and the internal environment temperature is high, it is difficult for personnel to grasp the internal situation during the production process. They can only enter the internal inspection after the furnace is shut down and cooled. Due to the particularity of the production process, the time loss and economic loss caused by the shutdown are huge.
[0004] Some kilns will have nodules and hanging materials on the furnace wall during operation, such as electric coal-fired boilers. In the process of burning coal, coking will occur on the heating surface of the boiler. Since the specific situation inside the boiler is unclear, the understanding of the coking situation can only be verified by opening the boiler manhole door for observation during operation. Opening the boiler manhole door during operation to observe the coking situation of the heating surface is dangerous, and due to the influence of the observation angle, it is impossible to fully understand the coking situation in the furnace.
[0005] In order to obtain a true image of the interior of a high-temperature kiln, engineers and technicians have designed various high-temperature endoscopic imaging devices, which extend into the kiln through the reserved hole to observe the situation inside the kiln. However, due to various factors such as the large size of the camera and the high ambient temperature inside the kiln, this type of imaging device generally has only one camera and can only observe the area directly in front of the reserved hole. Images cannot be obtained for the areas in the four directions of the reserved hole, resulting in a large range of blind spots. Especially for large-volume kilns, it is impossible to obtain complete image data inside the furnace with one camera. There are also dual-camera endoscopic imaging devices on the market, but they can only be used at room temperature, and the observation distance cannot meet the requirements. They are mostly used in areas such as internal pipeline peeping and internal inspection of mechanical equipment, and cannot be used in high-temperature kilns of thousands of degrees Celsius. Utility Model Content
[0006] The purpose of the utility model is to provide a dual-camera high-temperature endoscopic imaging device, which can not only work reliably in a high-temperature environment, but also can observe the internal situation in a large range in stereo from both direct and side viewing directions, so as to solve the problems raised in the above-mentioned background technology.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual-camera high-temperature endoscopic imaging device, comprising a camera gun outer barrel, a camera gun inner barrel, a front-view camera, a side-view camera, a temperature sensor, a signal line, and a display box, wherein the camera gun outer barrel is mounted on the outside of the camera gun inner barrel, the front-view camera is installed inside the front end of the camera gun inner barrel, a temperature sensor is installed on the front-view camera, and the side-view camera is installed inside the side wall of the camera gun inner barrel, each camera is connected to a signal line, and the signal line is connected to the display box after protruding from the camera gun outer barrel; the camera gun outer barrel and the camera gun inner barrel are both provided with air intake joints for passing cooling gas to purge and cool the front-view camera and the side-view camera.
[0008] The front-view camera and the side-view camera are inserted into the high-temperature kiln for imaging, and the image signal is transmitted to the display box through the signal line and stored and displayed on the video storage display; the outer barrel of the camera gun and the inner barrel of the camera gun form a double-layer air-cooling structure; the temperature signal is transmitted to the display box through the signal line.
[0009] Preferably, the left ends of the camera gun outer cylinder and the camera gun inner cylinder are commonly connected to a wire threading and air intake device, which is a cylindrical structure with a through hole. After the signal line passes through the through hole of the wire threading and air intake device, the through hole end of the wire threading and air intake device is sealed with a cable sealing joint.
[0010] The front-view camera images the front, and the side-view camera can perform 360-degree imaging in four directions by rotating the camera gun.
[0011] Preferably, the side wall of the threading air intake device is provided with an outer cylinder air intake joint and an inner cylinder air intake joint, the outer cylinder air intake joint is connected to the outer cylinder of the camera gun, and the inner cylinder air intake joint is connected to the inner cylinder of the camera gun.
[0012] The outer barrel of the camera gun takes in air through an outer barrel air intake joint, and the inner barrel of the camera gun takes in air through an inner barrel air intake joint. The intake air is discharged from the front end openings of the outer barrel and the inner barrel respectively. The outer barrel of the camera gun and the inner barrel of the camera gun form a double-layer air-cooling structure.
[0013] Preferably, one end of the outer barrel of the camera gun away from the camera is connected to the end of the threading air intake device, an outer barrel air intake channel is arranged inside the threading air intake device, and the outer end of the outer barrel air intake channel is the outer barrel air intake joint.
[0014] Preferably, the inner cavity of the inner cylinder of the camera gun is connected to the center hole of the threading air intake device, and the threading air intake device is provided with an inner cylinder air intake channel connected to the center hole, and the outer end of the inner cylinder air intake channel is the inner cylinder air intake joint.
[0015] Preferably, the display box is integrated with a video storage display and a temperature digital display, wherein the video storage display displays and stores image information collected by the front view camera and the side view camera, and the temperature digital display displays temperature information collected by the temperature sensor.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] 1. The dual-camera high-temperature endoscopic imaging device extends into the kiln through the reserved opening of the high-temperature kiln. Since the outer tube of the device has a small diameter and a long length, it can pass through the reserved holes such as the observation hole and temperature measurement hole of the kiln and extend into the furnace. The image inside the furnace is collected by two cameras. Not only can the image inside the furnace facing the hole be collected by the direct-view camera, but also the top, bottom and surrounding of the kiln can be collected by the side-view camera. In view of the high-temperature environment inside the kiln, only two lines of compressed gas for production need to be connected, and the double-layer air-cooling structure can ensure the normal operation of the camera in the high-temperature environment inside the furnace. At the same time, the temperature sensor collects the temperature information of the camera in real time and displays it on the display box. The user can grasp the temperature information of the equipment at any time. If the temperature is abnormal, it can be pulled out of the furnace immediately to ensure that the equipment is not burned.
[0018] 2. The display box of the device can realize on-site storage and display of the image information inside the furnace, which can not only judge the situation inside the furnace on-site, but also replay and analyze the video inside the furnace later. The device can collect complete image data inside the high-temperature furnace, providing important information for the daily maintenance, diagnostic inspection and preventive maintenance of the furnace. The unique technical characteristics of the device make it also applicable to the internal image inspection of other high-temperature sealed containers, not just high-temperature furnaces. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the on-site use of the utility model in a dry quenching coke oven;
[0021] In the figure: 1-camera gun outer cylinder; 2-camera gun inner cylinder; 3-front view camera; 4-side view camera; 5-temperature sensor; 6-signal line; 7-threading air intake device; 8-cable sealing head; 9-outer cylinder air intake connector; 10-inner cylinder air intake connector; 11-signal line plug; 12-display box; 13-video storage display; 14-temperature display meter; 15-power jack socket; 16-signal line plug socket.
[0022] 17-coke oven body; 18-inner wall of annular flue; 19-inclined leg; 20-temperature measuring hole; 21-observation hole; 22-a dual-camera high-temperature endoscopic imaging device. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1The utility model provides an embodiment: a dual-camera high-temperature endoscopic imaging device, including a camera gun outer cylinder 1, a camera gun inner cylinder 2, a front-view camera 3, a side-view camera 4, a temperature sensor 5, a signal line 6, a threading air intake device 7, a cable sealing head 8, an outer cylinder air intake connector 9, an inner cylinder air intake connector 10, a signal line plug 11, a display box 12, a video storage display 13, a temperature display meter 14, a power jack socket 15, and a signal line plug socket 16. The outer tube 1 of the camera gun is sleeved on the outside of the inner tube 2 of the camera gun to form an interlayer cavity, and the outer tube air inlet joint 9 is connected to the compressed gas on site, and the gas passes through the interlayer cavity to purge and cool the inner tube 2 of the camera gun, and then is discharged from the two openings at the front end of the outer tube; the front view camera 3 and the side view camera 4 are respectively installed inside the front end of the inner tube 2 of the camera gun, and the inner tube air inlet joint 10 is connected to the compressed gas on site to purge and cool the front view camera 3 and the side view camera 4, and then is discharged from the two openings at the front end of the inner tube; the openings at the front ends of the outer tube 1 of the camera gun and the inner tube 2 of the camera gun are used as exhaust holes, and are also imaging holes for the front view camera 3 and the side view camera 4; a temperature sensor 5 is installed on the front view camera 3 to collect the camera temperature; the outer tube air inlet joint 9 on the threading air inlet device 7 is connected to the inner tube The interlayer cavities of the outer cylinder are connected, and the inner cylinder air inlet joint 10 is connected to the inner cylinder to provide two cooling gases; the video and temperature signals are transmitted to the outside of the furnace through the signal line 6, and the signal line 6 extends out of the camera gun along the inside of the camera gun inner cylinder 2, and is sealed by the cable sealing head 8 to prevent the gas in the camera gun inner cylinder 2 from overflowing; the display box 12 integrates a video storage display 13, a temperature display meter 14, a power socket 15, and a signal line plug socket 16. The power socket 15 is connected to the on-site 220V power supply to power the entire device. The signal line 6 is connected to the signal line plug socket 16 through the signal line plug 11. The video storage display 13 displays and stores the image information collected by the front view camera 3 and the side view camera 4, and the temperature digital display 14 displays the temperature information collected by the temperature sensor 5.
[0025] See also Figure 2 The utility model provides an embodiment for use on-site in a dry quenching coke oven: a dual-camera high-temperature endoscopic imaging device 22 extends into the dry quenching coke oven through a temperature measuring hole 20 or an observation hole 21 reserved on the dry quenching coke oven body 17 to perform imaging. By extending into the temperature measuring hole 20, the interior of the cooling chamber can be imaged. By rotating the camera gun, the side-view camera 4 can perform 360-degree imaging from top to bottom, and the condition of the ramp legs 19 and the cooling chamber furnace wall can be fully observed. By extending into the observation hole 21, the inner wall 18 of the annular flue can be observed from top to bottom in all directions. The imaging information can be displayed and stored on-site through the display box 12.
[0026] Working principle: The device adopts high-temperature imaging technology and air-cooling protection technology. When in use, the camera gun of the device extends into the kiln through the opening reserved in the high-temperature kiln, and uses two cameras for direct view and side view to collect large-scale images of the inside of the kiln. The double-layer air-cooling structure only needs two cooling gases to ensure that the camera can work normally under the high-temperature environment in the furnace. The display box integrates a video storage display and a temperature digital display meter, and is connected to the camera gun through a signal line with a plug, which is convenient for reading the image information collected by the camera and the camera temperature information, and is convenient and quick to use.
[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A dual-camera high-temperature endoscopic imaging device, comprising a camera gun outer tube (1), a camera gun inner tube (2), a front-view camera (3), a side-view camera (4), a temperature sensor (5), a signal line (6), and a display box (12), characterized in that: The camera gun outer barrel (1) is mounted on the outside of the camera gun inner barrel (2); the front view camera (3) is mounted inside the front end of the camera gun inner barrel (2); a temperature sensor (5) is mounted on the front view camera (3); the side view camera (4) is mounted inside the side wall of the camera gun inner barrel (2); each camera is connected to a signal line (6); the signal line (6) protrudes from the camera gun outer barrel (1) and is connected to a display box (12); the camera gun outer barrel (1) and the camera gun inner barrel (2) are both provided with air intake joints for passing cooling gas to purge and cool the front view camera (3) and the side view camera (4).
2. A dual-camera high-temperature endoscopic imaging device according to claim 1, characterized in that: The left ends of the camera gun outer cylinder (1) and the camera gun inner cylinder (2) are connected to a wire threading air intake device (7). The wire threading air intake device (7) is a cylindrical structure with a through hole. After the signal line (6) passes through the through hole of the wire threading air intake device (7), the end of the through hole of the wire threading air intake device (7) is sealed with a cable sealing joint (8).
3. A dual-camera high-temperature endoscopic imaging device according to claim 2, characterized in that: An outer cylinder air intake joint (9) and an inner cylinder air intake joint (10) are provided on the side wall of the threading air intake device (7); the outer cylinder air intake joint (9) is connected to the outer cylinder (1) of the camera gun, and the inner cylinder air intake joint (10) is connected to the inner cylinder (2) of the camera gun.
4. A dual-camera high-temperature endoscopic imaging device according to claim 3, characterized in that: The end of the camera gun outer barrel (1) away from the camera head is connected to the end of a threading air intake device (7), an outer barrel air intake passage is provided inside the threading air intake device (7), and the outer end of the outer barrel air intake passage is an outer barrel air intake joint (9).
5. The dual-camera high-temperature endoscopic imaging device according to claim 3, characterized in that: The inner cavity of the inner cylinder (2) of the camera gun is connected to the central hole of the threading air intake device (7), and the threading air intake device (7) is provided with an inner cylinder air intake passage connected to the central hole, and the outer end of the inner cylinder air intake passage is the inner cylinder air intake joint (10).
6. The dual-camera high-temperature endoscopic imaging device according to claim 1, characterized in that: The display box (12) is integrated with a video storage display (13) and a temperature digital display (14), wherein the video storage display (13) displays and stores image information collected by the front view camera (3) and the side view camera (4), and the temperature digital display (14) displays temperature information collected by the temperature sensor (5).