Energy-saving aerogel tunnel furnace
By installing a split structure and aerogel felt inside the tunnel furnace, the problem of difficult maintenance of the insulation layer of the existing tunnel furnace has been solved, achieving energy saving and efficient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN JIAZHI TECH CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-23
AI Technical Summary
The insulation layer of existing tunnel furnaces is located on the inner wall of the furnace body, which makes maintenance difficult and causes long downtime, affecting production efficiency.
The tunnel furnace adopts a split structure, with the outer surface of the inner frame covered with aerogel felt and wrapped by the outer frame. The aerogel felt has excellent heat insulation effect, reducing heat loss. The outer frame and the inner frame are detachable, which facilitates the replacement and maintenance of the insulation layer.
It achieves energy-saving effects, reduces the energy consumption of heating elements, reduces the thickness of insulation layer, improves space utilization, and greatly shortens maintenance standby time.
Smart Images

Figure CN224398286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tunnel furnace technology, specifically an aerogel energy-saving tunnel furnace. Background Technology
[0002] A tunnel furnace is a continuous heat processing equipment. Its main body is a long and narrow tunnel structure, and it is equipped with a continuously operating conveying system. During the conveying process, the material is uniformly heated through heat conduction, convection and radiation, achieving efficient and stable industrial production.
[0003] Existing patent application number: 202321481589.2 LED constant temperature tunnel oven with anti-fall guard plate, including tunnel oven base, LED conveyor belt and constant temperature heating box set on tunnel oven base; anti-fall guard plate is symmetrically arranged on both sides of tunnel oven base, and the cross section of the anti-fall guard plate on both sides and tunnel oven base is U-shaped; LED conveyor belt is set in the groove between the anti-fall guard plate on both sides, and both ends of LED conveyor belt are connected to drive rollers. Both ends of each drive roller are connected to the end of tunnel oven base through fixed frame, and the drive roller and fixed frame are rotatably connected by rotating shaft.
[0004] The aforementioned patent describes a tunnel furnace structure. In practical applications, the inner wall of a tunnel furnace is usually lined with insulation cotton as a heat preservation layer. To reduce heat loss, the insulation layer needs to be very thick, resulting in a bulky structure. Moreover, in existing tunnel furnaces, the insulation layer is located on the inner wall of the furnace body, but heating pipes are also installed inside the furnace. If the insulation layer needs to be replaced, the entire furnace body and heating pipe assembly need to be disassembled, making subsequent maintenance difficult and causing long downtime that affects production efficiency. Therefore, we propose an aerogel energy-saving tunnel furnace to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide an aerogel energy-saving tunnel furnace to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an aerogel energy-saving tunnel furnace, comprising a conveyor belt and a split-type tunnel furnace, wherein the split-type tunnel furnace is mounted on the top of the conveyor belt, and the split-type tunnel furnace comprises an inner frame, heating pipes, an air inlet, an aerogel felt, an outer frame, and a circulating fan. The inner frame is mounted on the top of the conveyor belt, and heating pipes are installed on the front and rear sides of the inner top surface of the inner frame. An air inlet is provided through the middle of the inner top surface of the inner frame. An aerogel felt is laid on the outer surface of the inner frame, and an outer frame is fitted onto the outer surface of the inner frame. A circulating fan is installed in the middle of the top surface of the outer frame, and the bottom air outlet of the circulating fan is connected to the air inlet.
[0007] Preferably, the inner frame has connecting pillars equidistantly arranged at the four corners of its top surface, and the outer frame has mounting holes extending through the four corners of its top surface. The mounting holes are secured to the connecting pillars with screws.
[0008] Preferably, the outer frame and the top surface of the inner frame are not in direct contact, and a gap of at least 4 mm is maintained between the top surfaces of the outer frame and the inner frame.
[0009] Preferably, the aerogel felt on the top surface and the left and right sides of the inner frame are each independently installed.
[0010] Preferably, the outer frame completely encloses and covers the aerogel felt.
[0011] Preferably, the inner frame surface is symmetrically provided with insertion slots on the front and rear sides, and the outer frame bottom is symmetrically provided with insertion brackets on the front and rear sides, and the insertion brackets are longitudinally inserted into the insertion slots.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention features a split-type tunnel furnace installed at the top of the conveyor belt. Aerogel felt is laid on the outer surface of the inner frame, providing excellent insulation and effectively reducing heat loss from the inner frame, thus lowering the energy consumption of the heating elements and achieving energy savings. Furthermore, the aerogel felt reduces the insulation layer thickness while achieving the same insulation effect, significantly saving space and improving space utilization. Additionally, when maintenance is required on the split-type tunnel furnace, simply disconnect the screws connecting the support column and the mounting hole to remove the outer frame from the inner frame, exposing the aerogel felt for easy replacement and maintenance of the insulation layer, greatly reducing maintenance downtime. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the disassembly structure of the split-type tunnel furnace in this utility model;
[0016] Figure 3 This is a schematic diagram of the inner frame structure in this utility model;
[0017] Figure 4 This is a schematic diagram of the bottom structure of the inner frame in this utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the outer frame of this utility model.
[0019] In the diagram: Conveyor belt-1, Split tunnel furnace-2, Inner frame-21, Heating pipe-22, Air inlet-23, Aerogel felt-24, Outer frame-25, Circulating fan-26, Connecting support column-27, Mounting hole-28, Insertion slot-29, Insertion bracket-210. Detailed Implementation
[0020] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.
[0021] Please see Figure 1 This utility model provides an aerogel energy-saving tunnel furnace, including a conveyor belt 1 and a split tunnel furnace 2, with the split tunnel furnace 2 mounted on the top of the conveyor belt 1.
[0022] Specifically, during use, the material is placed on the conveyor belt 1, which carries the material into the split tunnel furnace 2 for heating.
[0023] Please see Figure 2-5 This utility model provides an aerogel energy-saving tunnel furnace. The split tunnel furnace 2 includes an inner frame 21, heating pipes 22, air inlet 23, aerogel felt 24, an outer frame 25, and a circulating fan 26. The inner frame 21 is mounted on the top of the conveyor belt 1. Heating pipes 22 are installed on the front and back of the inner top surface of the inner frame 21. An air inlet 23 is provided through the middle of the inner top surface of the inner frame 21. The outer surface of the inner frame 21 is covered with aerogel felt 24. The outer frame 25 is fitted onto the outer surface of the inner frame 21. A circulating fan 26 is installed in the middle of the top surface of the outer frame 25. The bottom air outlet of the circulating fan 26 is connected to the air inlet 23.
[0024] Specifically, after the material enters the split tunnel furnace 2, it is heated by the heating tube 22. At the same time, the circulating fan 26 circulates air into the inner frame 21 through the air inlet 23, so that the hot air is evenly distributed inside the split tunnel furnace 2, avoiding local overheating or underheating and ensuring that the material is heated evenly. In particular, by laying aerogel felt 24 on the outer surface of the inner frame 21, the aerogel felt 24 has excellent heat insulation effect, which can effectively reduce the heat loss inside the inner frame 21, thereby reducing the operating energy consumption of the heating tube 22 and achieving energy saving effect. Moreover, the aerogel felt 24 reduces the thickness of the insulation layer while achieving the same heat insulation effect, which greatly saves space and improves space utilization.
[0025] Specifically, when maintenance is required on the split tunnel furnace 2, first disconnect the screws connecting the support column 27 and the mounting hole 28, then the outer frame 25 can be removed from the outside of the inner frame 21, exposing the aerogel felt 24, which facilitates the replacement and maintenance of the insulation layer and greatly reduces maintenance downtime.
[0026] To further explain, the inner frame 21 has connecting pillars 27 equidistantly arranged at the four corners of its top surface, and the outer frame 25 has mounting holes 28 through the four corners of its top surface. The mounting holes 28 are secured to the connecting pillars 27 with screws, so that the outer frame 25 and the inner frame 21 are screwed together.
[0027] Specifically, the top surfaces of the outer frame 25 and the inner frame 21 are not in direct contact, and a gap of at least 4mm is maintained between the top surfaces of the outer frame 25 and the inner frame 21, so that the outer frame 25 and the inner frame 21 can still be insulated by air, further reducing the surface working temperature of the outer frame 25.
[0028] In this case, the aerogel felt 24 on the top and left and right sides of the inner frame 21 are independently set so that they can be replaced individually, reducing the difficulty and cost of replacement later. The outer frame 25 completely wraps and covers the aerogel felt 24, providing a sealed working environment for the aerogel felt 24 to extend its service life.
[0029] Specifically, the inner frame 21 has symmetrically arranged insertion slots 29 on the front and rear sides of its surface, and the outer frame 25 has symmetrically arranged insertion brackets 210 on the front and rear sides of its bottom surface. The insertion brackets 210 and insertion slots 29 are longitudinally inserted into each other. The cooperation between the insertion brackets 210 and insertion slots 29 enhances the connection and sealing between the inner frame 21 and the outer frame 25, making it less likely for heat to escape from the interlayer between the inner frame 21 and the outer frame 25, thus improving the insulation effect.
[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An aerogel energy-saving tunnel furnace, comprising a conveyor belt (1), characterized in that: It also includes a split-type tunnel furnace (2), which is mounted on the top of the conveyor belt (1). The split-type tunnel furnace (2) includes an inner frame (21), heating pipes (22), air inlet (23), aerogel felt (24), outer frame (25) and circulating fan (26). The inner frame (21) is mounted on the top of the conveyor belt (1). Heating pipes (22) are installed on the front and back of the inner top surface of the inner frame (21). An air inlet (23) is provided through the middle of the inner top surface of the inner frame (21). An aerogel felt (24) is laid on the outer surface of the inner frame (21). An outer frame (25) is fitted on the outer surface of the inner frame (21). A circulating fan (26) is installed in the middle of the top surface of the outer frame (25). The air outlet at the bottom of the circulating fan (26) is connected to the air inlet (23).
2. The aerogel energy-saving tunnel furnace according to claim 1, characterized in that: The inner frame (21) has connecting pillars (27) equidistantly arranged at the four corners of its top surface, and the outer frame (25) has mounting holes (28) through the four corners of its top surface. The mounting holes (28) are locked and fixed to the connecting pillars (27) with screws.
3. The aerogel energy-saving tunnel furnace according to claim 1, characterized in that: The outer frame (25) and the top surface of the inner frame (21) are not in direct contact, and the top surfaces of the outer frame (25) and the inner frame (21) maintain a distance of at least 4 mm.
4. The aerogel energy-saving tunnel furnace according to claim 1, characterized in that: The aerogel felts (24) on the top and left and right sides of the inner frame (21) are all independently set.
5. The aerogel energy-saving tunnel furnace according to claim 1, characterized in that: The outer frame (25) completely covers the aerogel felt (24).
6. The aerogel energy-saving tunnel furnace according to claim 1, characterized in that: The inner frame (21) has symmetrically arranged insertion slots (29) on the front and rear sides of its surface, and the outer frame (25) has symmetrically arranged insertion brackets (210) on the front and rear sides of its bottom surface. The insertion brackets (210) are longitudinally inserted into the insertion slots (29).