A portable observation device for furnaces
By designing a multi-layered spatial structure and cooling system for the portable observation device, the problem of easy damage to the observation equipment under high-temperature conditions in the boiler furnace was solved, and efficient and reliable monitoring of combustion was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGDIAN HUACHUANG ELECTRIC POWER TECH RES
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-30
AI Technical Summary
Existing boiler furnace observation equipment is easily damaged in high-temperature environments and has low observation efficiency, making it impossible to effectively monitor combustion in real time.
A portable observation device was designed, comprising a probe, circulating water pipeline, cooling air pipeline, camera, and baffle assembly. The camera is protected from high-temperature damage through a multi-layered spatial design and a cooling system, and effective heat dissipation and dust removal are achieved.
This effectively avoids damage to the camera caused by high temperatures, ensures the normal operation of the observation equipment in high-temperature environments, and improves observation efficiency and equipment lifespan.
Smart Images

Figure CN224434461U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of high temperature observation technology in boilers, and particularly relates to a portable observation device for the furnace. Background Technology
[0002] In the operation of coal-fired boilers in thermal power plants, the combustion conditions within the furnace have a significant impact on the boiler's safe operation. Operators observe the combustion process through viewing holes in different areas of the boiler, analyzing the internal combustion conditions to obtain various data. For example, observation through the burner nozzle viewing hole reveals information such as pulverized coal concentration, primary air velocity, ignition time, ignition intensity, and flue gas entrainment intensity. Furthermore, this viewing hole allows operators to simultaneously observe the burner's integrity and whether there is any slag buildup on the burner and surrounding areas. Observation through the viewing hole in the middle area of the water-cooled wall reveals the combustion intensity of the pulverized coal from combustion to burnout, the tangentiality of the fireball within the furnace, and whether there is slag buildup on the water-cooled wall. The viewing hole above the slag hopper allows observation of the fire support at the bottom of the furnace, whether flames are scouring the slag hopper, whether there is pulverized coal runoff, and the condition of large slag deposits. Real-time monitoring of the combustion conditions within the boiler furnace is crucial for operators during these observations, and the combustion conditions provide a reference for combustion adjustment tests.
[0003] Currently, the main methods for observing the flame inside the boiler furnace in thermal power plants include fixed camera devices, mobile cameras, and manual observation. Each method has its own drawbacks: fixed camera devices are generally installed in fixed positions, and their fixed cylindrical design limits the observation range and angle. While mobile cameras do not have these drawbacks, prolonged insertion into the observation port can easily damage the device. Manual observation is inefficient, and high temperatures can severely damage the human eye. Therefore, there is an urgent need to improve existing observation equipment to ensure continuous operation in high-temperature environments, thereby addressing the problem of inconvenience for operators in observing combustion within the furnace. Utility Model Content
[0004] To address the problem described in the background art that existing observation equipment is inconvenient for operators to conduct combustion observations, this utility model proposes the following technical solution:
[0005] A portable observation device for a furnace includes: a probe, a circulating water pipe, a cooling gas pipe, a camera, and a baffle assembly; one end of the probe is fixedly connected to a handle, and the probe has an outer space, an inner space, and a storage space inside; one end of the circulating water pipe is connected to the inner space, and the other end of the circulating water pipe is connected to a chiller; one side of the cooling gas pipe is connected to the outer space, and the other side of the cooling gas pipe is connected to an air compressor; the camera is fixedly installed in the storage space, and the handle is fixedly connected to the outer wall of the storage space; the baffle assembly includes two opposing baffles, each of which is spaced apart in the inner space to divide the inner space into continuous flow guiding areas.
[0006] The outer space includes a horizontal section and an inclined section that are interconnected; the horizontal section is fixedly connected to the outer wall of the inner space, and the end of the horizontal section is connected to the air compressor; multiple inclined exhaust holes are opened on the inner wall of the end of the inclined section.
[0007] Furthermore, each of the aforementioned baffle plates is fixedly disposed on the outer peripheral wall of the storage space, and on the end face of the storage space, the connecting line between each of the aforementioned baffle plates passes through the center of the storage space.
[0008] Furthermore, a temperature sensor connected to the outside is fixedly installed on the lens barrel of the camera near the tilting section.
[0009] Furthermore, both the outer space and the inner space are coaxial with the storage space, and the inner space is located between the outer space and the storage space.
[0010] Furthermore, the end of the probe is recessed to form a wedge-shaped space communicating with the outside. The wedge-shaped space is located between the outer peripheral wall of the outer space and the end face of the inner space, and the wedge-shaped space is coaxial with the storage space.
[0011] Furthermore, the length of each of the aforementioned baffle plates is less than the depth of the storage space.
[0012] Beneficial effects: The internal space design of this utility model provides multi-layer protection for the part entering the furnace through the internal space design of the probe, which can effectively avoid damage to the camera caused by the high temperature inside the furnace; the outer space isolates the high temperature flame of the furnace from direct contact with the camera, which can not only cool the lens exposed to the high temperature environment, but also blow away the dust accumulated on the lens; the inner space fully cools and dissipates heat from the lens barrel of the camera, thereby ensuring the normal operation of the camera. Attached Figure Description
[0013] Figure 1This is a schematic diagram of the structure of a portable observation device for a furnace according to an embodiment of the present invention;
[0014] Figure 2 This is a cross-sectional view of the probe according to an embodiment of the present invention. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the present invention.
[0016] It should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.
[0017] Figure 1 This invention relates to a portable observation device for a furnace according to an embodiment of the present invention. Figure 2 This is a cross-sectional view of the probe according to an embodiment of the present invention.
[0018] Reference Figure 1 A portable observation device for a furnace according to an embodiment of the present invention includes: a probe 1, a circulating water pipe 2, a cooling gas pipe 3, a camera 4, and a baffle assembly 5. The probe 1 is cylindrical in shape, with one end fixedly connected to a handle 6, and the other end of the probe 1 shaped like a frustum. The probe 1 contains an outer space 11, an inner space 12, and a storage space 13. One end of the circulating water pipe 2 is connected to the inner space 12, and the other end is connected to a chiller. The cooling gas pipe 3 connects the outer space 11 and an air compressor, and the cooling gas flows unidirectionally to cool the camera 4 housed within the probe 1. The camera 4 is fixedly housed within the storage space 13, and the outer peripheral wall of the storage space 13 is fixedly connected to the outer peripheral wall of the inner space 12. (Refer to...) Figure 2 The baffle assembly consists of two baffle pieces 51, each of which is arranged parallel to the radial direction and the line connecting them passes through the center of the circle, thereby dividing the inner space 12 into interconnected flow guiding regions 121.
[0019] Continue to refer to Figure 2Specifically, the outer space 11 includes a horizontal section 111 and an inclined section 112 that are interconnected. The outer wall of the horizontal section 111 is fixedly connected to the outer wall of the inner space 12. One end of the horizontal section 111 is connected to an air compressor. Multiple inclined exhaust holes 113 are formed on the inner wall of the vertical section away from the horizontal section 111. Each exhaust hole 113 is inclined relative to each other, and the outlet end of each exhaust hole 113 faces the end face of the receiving space 13.
[0020] Furthermore, each baffle plate 51 is fixed to the outer peripheral wall of the receiving space 13. Each baffle plate 51 is located in a different region of the inner space 12, and the length of each baffle plate 51 is less than the depth of the receiving space 13, thereby dividing the entire inner space 12 into two continuous regions. On the end face of the receiving space 13, the connecting line between each baffle plate 51 passes through the center of the receiving space 13. The narrow face of each baffle plate 15 is fixedly connected to the inner wall of the inner space 12, thereby dividing the entire inner space 12 into an interconnected upper region and a lower region. When the probe 1 enters the furnace, the cooling water in the inner space 12 flows along the upper region to the end of the inner space 12 and enters the lower region, flowing along the circulating water pipe 2 to the chiller. During this process, the heat generated in the furnace through heat conduction is rapidly absorbed and processed by the cooling water, thereby ensuring the normal operation of the camera 4.
[0021] Furthermore, the end of the probe 1 furthest from the handle 6 is recessed to form a wedge-shaped space 14 that communicates with the external space. This wedge-shaped space 14 is located between the end faces of the inclined section 112 and the storage space 13, and is coaxially arranged with the storage space 13. The inner wall of the wedge-shaped space 14 is formed by the outer peripheral wall of the inclined section 112, and the bottom of the wedge-shaped space 14 is formed by the end face of the storage space 13. In addition, the inner space 12 is located between the storage space 13 and the outer space 11, and the storage space 13, the inner space 12, and the outer space 11 are coaxially arranged.
[0022] Preferably, the handle 6 has a power supply cavity for connecting the camera 4 and the display device, and the storage space 13 is connected to the power supply cavity. When the camera 4 is running, the operator inserts the probe 1 into the furnace, and the monitor observes the combustion inside the furnace through the display device. In addition, to prevent the camera 4 from being damaged due to excessively rapid heating inside the furnace, in another embodiment, a temperature sensor 7 connected to the outside is also fixed on the lens barrel of the camera 4, and the operator judges the temperature inside the storage space 13 based on the data information returned by the temperature sensor 7.
[0023] When the operator is conducting observations, they adjust the camera angle of the observation equipment after it enters the furnace by holding the handle 6 to complete the corresponding observation work. The outer space 11 of the probe 1 blows air to the lens of the camera 4 through the exhaust port 113 to dissipate heat and also to clean the lens of dust and dirt. The lens barrel of the camera 4 is cooled by the circulating water pipe 2 to ensure that the entire camera 4 can operate normally during the detection process inside the furnace. During the detection process inside the furnace, the operator rotates the handle 6 to change the shooting angle of the camera 4. Furthermore, in order to avoid unstable image imaging caused by human factors, the handle 6 can be temporarily fixed by a tripod or other fixing device in actual application to ensure the stability of the image on the display device.
[0024] In summary, this utility model, through the internal space design of the probe, provides multi-layered protection for the part entering the furnace, effectively preventing damage to the camera from the high temperature inside the furnace. The outer space isolates the camera from direct contact with the high-temperature flames of the furnace, not only cooling the lens exposed to the high-temperature environment but also blowing away accumulated dust from the lens. The inner space provides sufficient cooling and heat dissipation for the camera's lens barrel, thereby ensuring the normal operation of the camera.
[0025] The above description describes specific embodiments of the utility model. Other embodiments are within the scope of the appended claims.
[0026] The terms “exemplary,” “example,” etc., used throughout this specification mean “serving as an example, instance, or illustration” and do not imply “preferred” or “advantageous” than other embodiments. Detailed descriptions are included for the purpose of providing an understanding of the described techniques. However, these techniques can be practiced without these detailed descriptions. In some instances, well-known structures and apparatuses are shown in block diagram form to avoid obscuring the concepts of the described embodiments.
[0027] The optional embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present utility model are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present utility model, various simple modifications can be made to the technical solutions of the embodiments of the present utility model, and these simple modifications all fall within the protection scope of the embodiments of the present utility model.
[0028] The foregoing description of this specification is provided to enable any person skilled in the art to implement or use the content of this specification. Various modifications to the content of this specification will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of protection of this specification. Therefore, this specification is not limited to the examples and designs described herein, but is consistent with the widest scope of the principles and novel features disclosed herein.
Claims
1. A portable observation device for a furnace, characterized in that, include: The device comprises a probe (1), a circulating water pipe (2), a cooling air pipe (3), a camera (4), and a baffle assembly (5); one end of the probe (1) is fixedly connected to a handle (6), and the probe (1) has an outer space (11), an inner space (12), and a storage space (13); one end of the circulating water pipe (2) is connected to the inner space (12), and the other end of the circulating water pipe (2) is connected to a chiller; one side of the cooling air pipe (3) is connected to the outer space. (11) Connected, the other side of the cooling air pipe (3) is connected to the air compressor; the camera (4) is fixedly installed in the storage space (13), and the grip (6) is fixedly connected to the outer wall of the storage space (13); the baffle assembly (5) includes two baffle pieces (51) arranged opposite to each other, each baffle piece (51) is spaced apart in the inner space (12) to divide the inner space (12) into a continuous flow guiding area (121).
2. The portable observation device for a furnace according to claim 1, characterized in that, The outer space (11) includes a horizontal section (111) and an inclined section (112) that are connected to each other; the horizontal section (111) is fixedly connected to the outer wall of the inner space (12), and the end of the horizontal section (111) is connected to the air compressor; multiple inclined exhaust holes (113) are opened on the inner wall of the end of the inclined section (112).
3. A portable observation device for a furnace according to claim 2, characterized in that, Each of the baffle plates (51) is fixedly disposed on the outer peripheral wall of the storage space (13), and on the end face of the storage space (13), the line connecting each of the baffle plates (51) passes through the center of the storage space (13).
4. A portable observation device for a furnace according to claim 3, characterized in that, A temperature sensor (7) connected to the outside is fixed on the lens barrel of the camera (4) near the tilt section (112).
5. A portable observation device for a furnace according to claim 4, characterized in that, The outer space (11) and the inner space (12) are both coaxial with the storage space (13), and the inner space (12) is located between the outer space (11) and the storage space (13).
6. A portable observation device for a furnace according to claim 4, characterized in that, The end of the probe (1) is recessed to form a wedge-shaped space (14) that communicates with the outside. The wedge-shaped space (14) is located between the outer peripheral wall of the outer space (11) and the end face of the inner space (12), and the wedge-shaped space (14) is coaxial with the storage space (13).
7. A portable observation device for a furnace according to claim 3, characterized in that, The length of each of the aforementioned baffle plates (51) is less than the depth of the storage space (13).