Real-time monitoring device for internal combustion condition of electric furnace

Abstract

The utility model discloses a real-time monitoring device for the internal combustion condition of an electric furnace, and the four real-time monitoring devices are respectively arranged on four fan-shaped parts of a furnace cover in a one-to-one correspondence manner; and each real-time monitoring device comprises a heat insulation seat arranged at the top of the furnace cover, the heat insulation seat and the furnace cover are correspondingly provided with vertically-through perspective holes, the heat insulation seat is provided with a water-cooling sleeve assembly, upper ports of the perspective holes are located in the water-cooling sleeve assembly, and a high-temperature-resistant camera is arranged in the water-cooling sleeve assembly. The device for monitoring the combustion condition in the furnace body in real time is arranged on the furnace cover, and the high-temperature-resistant camera is mainly cooled in a circulating water cooling mode in the monitoring process, so that the high-temperature-resistant camera is prevented from being damaged in a high-temperature environment for a long time. Collected video signals are transmitted to a control machine room, the garbage combustion condition in the incinerator body can be seen according to combustion images, the feeding amount and the combustor power can be adjusted in real time, garbage combustion is more sufficient, and more energy is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric furnaces, and in particular relates to a real-time monitoring device for the internal combustion condition of an electric furnace. Background Art

[0002] Waste incineration furnaces are a type of industrial furnace. Currently, internal monitoring typically focuses on parameters such as temperature, pressure, and humidity. Multi-point video monitoring of the furnace's combustion status to determine whether the waste is molten is rare. Real-time monitoring of the furnace's combustion status and adjustments to feed rate and burner power based on these observations could lead to more complete and energy-efficient combustion. Therefore, optimization and improvement of existing furnace combustion monitoring methods are urgently needed. Utility Model Content

[0003] In order to solve the above technical problems existing in the prior art, the utility model provides a real-time monitoring device for the internal combustion condition of an electric furnace.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a real-time monitoring device for the internal combustion condition of an electric furnace, a furnace cover is provided on the top of the electric furnace, the furnace cover includes a central disc portion and six fan-shaped portions, the central angle of each fan-shaped portion is 60°, the six fan-shaped portions are evenly arranged along the outer circle of the disc portion, an electrode hole is provided in the center of the disc portion, four real-time monitoring devices are provided, and the four real-time monitoring devices are respectively provided on the four fan-shaped portions; each real-time monitoring device includes a heat insulation seat provided on the top of the furnace cover, the heat insulation seat and the furnace cover are provided with upper and lower transparent perspective holes, a water-cooling sleeve assembly is provided on the heat insulation seat, the upper end of the perspective hole is located inside the water-cooling sleeve assembly, and a high-temperature resistant camera is provided inside the water-cooling sleeve assembly.

[0005] The other two fan-shaped parts are respectively provided with a feed port and a smoke exhaust port.

[0006] The heat-insulating seat comprises an outer shell and refractory bricks arranged in the outer shell. Fixed plates are arranged around the bottom of the outer shell. The fixed plates are fixedly connected to the furnace cover through fixing bolts.

[0007] The water-cooling sleeve assembly includes an outer cylinder, a cylinder cover is provided on the top of the outer cylinder, a heat insulation plate is provided at the lower end of the outer cylinder, a through hole corresponding to the perspective hole is opened on the heat insulation plate, an annular positioning sleeve is provided on the top of the outer shell, the lower end of the outer cylinder is interference fitted in the positioning sleeve, the bottom surface of the heat insulation plate is in contact with the top surface of the outer shell, and a spiral water-cooling pipe is provided along the circumferential direction of the inner circle of the outer cylinder.

[0008] The high-temperature resistant camera includes a camera body, a hollow camera rod is fixedly connected to the lower end of the camera body, a high-temperature resistant lens is provided at the lower end of the hollow camera rod, the upper part of the spiral water cooling pipe is arranged around the outer circle of the camera body, the lower part of the spiral water cooling pipe is arranged around the outer circle of the hollow camera rod, a high-temperature resistant insulation tube is provided between the water cooling pipe arranged around the outer circle of the hollow camera rod and the inner circle of the outer tube, the lower end of the water cooling pipe is provided with a cold water inlet pipe passing through the high-temperature resistant insulation tube and the outer tube body, and the upper end of the water cooling pipe is provided with a water outlet pipe passing through the tube cover.

[0009] By adopting the above technical solution, the utility model has the following technical effects:

[0010] 1) The heat-insulating base, installed on the furnace cover, is the first barrier to protect the normal operation of the high-temperature camera. The water-cooling sleeve assembly surrounds the camera body and hollow camera rod of the high-temperature camera, cooling the camera through circulating water, which is the second barrier to protect the normal operation of the high-temperature camera.

[0011] 2) The spiral water-cooling tube is designed with two connected sections, one thicker at the top and one thinner at the bottom, adapted to the outer diameters of the camera body and hollow camera rod. This ensures a closer fit between the inner diameter of the water-cooling tube and the camera body, respectively, enhancing cooling efficiency. Furthermore, the step formed by the upper and lower sections of the spiral water-cooling tube serves as a support stop, preventing the lower end of the hollow camera rod from extending too far into the perspective aperture and potentially being burned by the higher temperatures, thus effectively protecting the high-temperature camera.

[0012] 3) When inspecting the high-temperature resistant lens, the fixing bolts can be removed and the mounting shell removed from the furnace cover. The positioning sleeve is fixed to the top of the mounting shell. The outer cylinder of the water-cooling jacket assembly is interference-fitted into the positioning sleeve. The outer cylinder is then welded to the positioning sleeve. The water-cooling pipe is set along the outer circle of the high-temperature resistant camera. Cold water is introduced into the cold water inlet pipe at the bottom. The hot water after heat exchange is discharged through the outlet pipe at the top. It has a good cooling effect and ensures a good working environment for the high-temperature resistant camera.

[0013] In summary, the present invention installs a real-time monitoring device for the combustion conditions inside the furnace on the furnace cover. During the monitoring process, the high-temperature camera is cooled primarily through circulating water cooling, thus preventing damage from prolonged exposure to high temperatures. The high-temperature camera transmits the captured video signal to the control room through a perspective hole. The combustion image can be used to monitor the combustion conditions of the waste inside the furnace, allowing for real-time adjustments to the feed rate and burner power, resulting in more complete and energy-efficient combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2This is a plan view of the utility model installed on the furnace cover;

[0016] Figure 3 yes Figure 2 Schematic diagram of vertical section. DETAILED DESCRIPTION

[0017] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0018] Figure 1-Figure 3 As shown, the present invention provides a real-time monitoring device for the internal combustion conditions of an electric furnace. The furnace is topped with a furnace cover comprising a central disc portion 1 and six sector-shaped portions 2. Each sector-shaped portion 2 has a central angle of 60°. The six sector-shaped portions 2 are evenly arranged along the outer circumference of the disc portion 1. An electrode hole 3 (for mounting an ignition electrode) is provided in the center of the disc portion 1. Four real-time monitoring devices 4 are provided, one corresponding to each of the four sector-shaped portions 2. Each real-time monitoring device 4 includes a heat-insulating seat located on the top of the furnace cover. The heat-insulating seat and the furnace cover each have a corresponding upper and lower transparent aperture 6. A water-cooling sleeve assembly is provided on the heat-insulating seat. The upper end of the aperture 6 is located within the water-cooling sleeve assembly, which houses a high-temperature-resistant camera. The other two sector-shaped portions 2 are also provided with a feed inlet 7 and a smoke exhaust outlet 8, respectively.

[0019] The heat-insulating seat comprises an outer shell and refractory bricks 9 arranged in the outer shell 10. A fixing plate 11 is provided around the bottom of the outer shell 10. The fixing plate 11 is fixedly connected to the furnace cover by fixing bolts.

[0020] The water-cooling sleeve assembly includes an outer cylinder 12, a cylinder cover 13 is provided on the top of the outer cylinder 12, a heat insulation plate 14 is provided at the lower end of the outer cylinder 12, a through hole corresponding to the perspective hole 6 is opened on the heat insulation plate 14, an annular positioning sleeve 15 is provided on the top of the outer shell 10, the lower end of the outer cylinder 12 is interference fitted in the positioning sleeve 15, the bottom surface of the heat insulation plate 14 is in contact with the top surface of the outer shell 10, and a spiral water-cooling pipe 16 is provided along the circumferential direction of the inner circle of the outer cylinder 12.

[0021] The high-temperature resistant camera includes a camera body 17, a hollow camera rod 18 is fixedly connected to the lower end of the camera body 17, a high-temperature resistant lens 19 is provided at the lower end of the hollow camera rod 18, the upper part of the spiral water-cooling tube 16 is arranged around the outer circle of the camera body 17, and the lower part of the spiral water-cooling tube 16 is arranged around the outer circle of the hollow camera rod 18. A high-temperature resistant insulation tube 20 is provided between the water-cooling tube 16 arranged around the outer circle of the hollow camera rod 18 and the inner circle of the outer cylinder 12. The lower end of the water-cooling tube 16 is provided with a cold water inlet pipe 21 passing through the high-temperature resistant insulation tube 20 and the outer cylinder 12, and the upper end of the water-cooling tube 16 is provided with a water outlet pipe 22 passing through the cylinder cover 13.

[0022] The working principle and technical effects of this utility model are as follows:

[0023] 1) The heat-insulating base, located on the furnace cover, is the primary barrier protecting the heat-resistant camera. The water-cooling sleeve assembly, which surrounds the camera body 17 and hollow camera rod 18, cools the camera through circulating water, providing a secondary barrier to protect the camera.

[0024] 2) The spiral water-cooling tube 16 is designed with two interconnected sections, one thicker at the top and one thinner at the bottom, tailored to the outer diameters of the camera body 17 and hollow camera rod 18. This ensures a closer fit between the inner diameter of the water-cooling tube 16 and the camera body 17 and hollow camera rod 18, respectively, enhancing cooling efficiency. Furthermore, the step formed by the upper and lower sections of the spiral water-cooling tube 16 serves as a support stop, preventing the lower end of the hollow camera rod 18 from extending too far into the perspective aperture 6 and potentially causing burns, thereby effectively protecting the high-temperature camera.

[0025] 3) When inspecting the high-temperature resistant lens, the fixing bolts can be removed and the mounting housing removed from the furnace cover. A positioning sleeve 15 is fixed to the top of the mounting housing. The outer cylinder 12 of the water-cooling jacket assembly is interference-fitted within the positioning sleeve 15. The outer cylinder 12 is then welded to the positioning sleeve 15. The water-cooling pipe 16 is arranged along the outer circumference of the high-temperature resistant camera. Cold water is introduced through the cold water inlet pipe 21 at the bottom. Hot water after heat exchange is discharged through the water outlet pipe 22 at the top, providing an excellent cooling effect and ensuring a good working environment for the high-temperature resistant camera.

[0026] The high temperature resistant camera in the present invention is an existing conventional technology and can be purchased on the market.

[0027] The above embodiments illustrate the basic principles and features of the present invention. However, the above merely illustrates preferred embodiments of the present invention and is not intended to limit the present invention to the embodiments described. Persons skilled in the art, inspired by this patent, may make various modifications and improvements without departing from the spirit of the present invention and the scope of protection of the claims, all of which fall within the scope of protection of the present invention. Therefore, the patent and scope of protection of this utility model shall be subject to the appended claims.

Claims

1. A real-time monitoring device for the internal combustion condition of an electric furnace. The furnace cover is provided on the top of the electric furnace. The cover comprises a central disc portion and six sector-shaped portions. The central angle of each sector-shaped portion is 60°. The six sector-shaped portions are evenly arranged along the outer circle of the disc portion. An electrode hole is provided in the center of the disc portion. The device is characterized by: There are four real-time monitoring devices, which are respectively arranged on the four fan-shaped parts; each real-time monitoring device includes a heat-insulating seat arranged on the top of the furnace cover, and the heat-insulating seat and the furnace cover are respectively provided with upper and lower transparent perspective holes, and a water-cooling sleeve assembly is provided on the heat-insulating seat, and the upper port of the perspective hole is located inside the water-cooling sleeve assembly, and a high-temperature resistant camera is provided inside the water-cooling sleeve assembly.

2. The real-time monitoring device for combustion conditions inside an electric furnace according to claim 1, characterized in that: The other two fan-shaped parts are respectively provided with a feed port and a smoke exhaust port.

3. The real-time monitoring device for combustion conditions inside an electric furnace according to claim 1 or 2, characterized in that: The heat-insulating seat comprises an outer shell and refractory bricks arranged in the outer shell. Fixed plates are arranged around the bottom of the outer shell. The fixed plates are fixedly connected to the furnace cover through fixing bolts.

4. The real-time monitoring device for combustion conditions inside an electric furnace according to claim 3, characterized in that: The water-cooling sleeve assembly includes an outer cylinder, a cylinder cover is provided on the top of the outer cylinder, a heat insulation plate is provided at the lower end of the outer cylinder, a through hole corresponding to the perspective hole is opened on the heat insulation plate, an annular positioning sleeve is provided on the top of the outer shell, the lower end of the outer cylinder is interference fitted in the positioning sleeve, the bottom surface of the heat insulation plate is in contact with the top surface of the outer shell, and a spiral water-cooling pipe is provided along the circumferential direction of the inner circle of the outer cylinder.

5. The real-time monitoring device for combustion conditions inside an electric furnace according to claim 4, characterized in that: The high-temperature resistant camera includes a camera body, a hollow camera rod is fixedly connected to the lower end of the camera body, a high-temperature resistant lens is provided at the lower end of the hollow camera rod, the upper part of the spiral water cooling pipe is arranged around the outer circle of the camera body, the lower part of the spiral water cooling pipe is arranged around the outer circle of the hollow camera rod, a high-temperature resistant insulation tube is provided between the water cooling pipe arranged around the outer circle of the hollow camera rod and the inner circle of the outer tube, the lower end of the water cooling pipe is provided with a cold water inlet pipe passing through the high-temperature resistant insulation tube and the outer tube body, and the upper end of the water cooling pipe is provided with a water outlet pipe passing through the tube cover.

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