A heat insulation mechanism for a biomass hot blast stove

Abstract

This utility model provides a heat insulation mechanism for a biomass hot air furnace, including a furnace body and a heat insulation mechanism installed on the furnace body. The furnace body has an air chamber and a heat exchange chamber. A fan is installed in the air chamber, and an air guide box is connected to the fan to guide airflow into the heat exchange chamber. This device cools the heat insulation layer by setting a heat dissipation channel within the heat insulation layer and using the introduced cold air to prevent heat from being conducted outward, thereby reducing the shell temperature of the furnace body. The air distribution box is connected to the air guide box through an adjustment control, thereby guiding part of the airflow in the air guide box into the heat dissipation channel without the need for additional fan equipment. The adjustment control can control the size of the through hole by rotating a rotary plate, and the rotary plate can move into the air guide box, which also facilitates guiding airflow into the air distribution box. The air intake of the air distribution box can be adjusted according to the shell temperature. The adjustment control can also be used to control the air temperature at the end of the furnace body by diverting the airflow through the air guide box, achieving the purpose of rapid regulation.

Description

Technical Field

[0001] This utility model relates to the field of hot air furnace technology, specifically to a heat insulation mechanism for a biomass hot air furnace. Background Technology

[0002] A biomass hot air furnace is a thermal device that uses the combustion of biomass fuel to generate high-temperature hot air. The heat generated by fuel combustion is transferred to the hot air through a heat exchange chamber, and the high-temperature flue gas and hot air are separately discharged. Because the furnace body and heat exchange chamber of a biomass hot air furnace have high temperatures, insulation is necessary. Conventionally, insulation materials are applied to the outside of the shell. However, since the shell is made of metal with good thermal conductivity, and it is inconvenient to install insulation materials in some areas, the shell temperature remains high. The resulting heat radiation also raises the temperature of the working environment, affecting the working conditions for personnel. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a heat insulation mechanism for a biomass hot air furnace, so as to solve the problems mentioned in the background art.

[0004] The technical problem solved by this utility model is achieved by the following technical solution: a heat insulation mechanism for a biomass hot air furnace, including a furnace body and a heat insulation mechanism installed on the furnace body. The furnace body is provided with a wind chamber and a heat exchange chamber. A fan is installed in the wind chamber, and an air guide box is connected to the outside of the fan to guide the airflow into the heat exchange chamber through the air guide box.

[0005] The heat insulation mechanism includes air distribution boxes installed on both sides of the air guide box and heat insulation layers distributed at the outer end of the furnace body. The heat insulation layers are provided with heat dissipation channels for airflow. The air distribution boxes are connected to the air guide box, and the outer end of the air distribution boxes guides the airflow into the corresponding heat dissipation channels through the air guide channels.

[0006] An air inlet is provided on the side of the furnace body away from the air chamber, and an exhaust channel is provided in the heat dissipation channel, through which hot air is introduced into the air inlet.

[0007] As a further embodiment of this utility model:

[0008] One side of the air distribution box is equipped with a control for adjusting the intake air volume, and another side has a through hole communicating with the air guide box. The control includes a rotating plate rotatably mounted at a corresponding position in the through hole and an electric cylinder driving the rotating plate. One side of the rotating plate is fixedly mounted on a rotating shaft and rotatably mounted at a corresponding position in the air guide box via the rotating shaft. The rotating shaft passes through the lower end of the air guide box, and a support is fixedly mounted on the outer end of the rotating shaft. One side of the electric cylinder is rotatably mounted at a corresponding position in the air guide box. A connecting rod is fixedly mounted on the outer end of the electric cylinder's output rod and rotatably connected to the support via the connecting rod to control the rotation of the rotating shaft. The electric cylinder adjusts the rotation of the rotating shaft via the connecting rod, and the rotating shaft drives the rotating plate to move into the air guide box to increase the intake air flow into the air distribution box, thereby adjusting the heat dissipation effect as needed.

[0009] As a further embodiment of this utility model:

[0010] The outer end of the air distribution box is provided with several air guide pipes, and the air distribution box is provided with baffles for each air guide pipe to disperse the airflow. The outer end of the air guide pipe is connected to the corresponding flow channel to introduce airflow into the corresponding heat insulation layer.

[0011] As a further embodiment of this utility model:

[0012] The heat insulation layers are respectively arranged around the furnace body. The air guide pipe guides the airflow into the corresponding heat dissipation channel through the guide channel to cool the heat insulation layer. The heat dissipation channel is equipped with a flow divider plate to divide the airflow introduced by the guide channel. Heat dissipation fins are also distributed in the heat dissipation channel to increase the heat dissipation effect of the heat insulation layer. The heat dissipation fins are arranged at intervals.

[0013] As a further embodiment of this utility model:

[0014] The air inlets are located on both sides of the furnace body, and the furnace body is equipped with baffles corresponding to the air inlets. The baffles are inclined on one side of the air inlets to prevent the airflow inside the furnace body from being discharged from the air inlets. The airflow flowing through the baffles will reduce the air pressure at the air inlets, thereby guiding the airflow in the heat dissipation channel into the furnace body.

[0015] As a further embodiment of this utility model:

[0016] The heat insulation layers at the top and bottom of the furnace body respectively guide airflow into the air inlet through the exhaust channel.

[0017] Compared with existing technologies, the beneficial effects of this invention are as follows: This device, by setting heat dissipation channels within the insulation jacket and utilizing introduced cold air to cool the insulation jacket, effectively prevents heat conduction outwards and lowers the furnace shell temperature. The air distribution box is connected to the air guide box via an adjustment control, thereby directing part of the airflow from the air guide box into the heat dissipation channels, eliminating the need for additional fan equipment. The adjustment control, by controlling the rotation of a rotating plate, can open the through-hole to a certain size, and the movement of the rotating plate into the air guide box also facilitates the guidance of airflow into the air distribution box. The air intake of the air distribution box can be adjusted according to the shell temperature. The adjustment control can also be used to control the air temperature at the furnace end by diverting airflow through the air guide box, achieving rapid temperature regulation. Heat dissipation fins are distributed within the insulation jacket, further enhancing heat transfer to the shell and achieving rapid cooling. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial cross-sectional view of the present invention.

[0020] Figure 3 This is a cross-sectional view of the air distribution box of this utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the thermal insulation interlayer structure of this utility model;

[0022] Figure 5 for Figure 3 Enlarged structural diagram at point A in the middle;

[0023] The diagram shows the following components: 1. Furnace body; 2. Air distribution box; 3. Insulation jacket; 11. Air chamber; 12. Heat exchange chamber; 13. Fan; 14. Air guide box; 15. Air inlet; 16. Baffle plate; 21. Rotary plate; 22. Electric cylinder; 23. Rotary shaft; 24. Support; 25. Connecting rod; 26. Air guide pipe; 27. Baffle plate; 31. Heat dissipation channel; 32. Exhaust channel; 33. Guide channel; 34. Flow divider; 35. Heat dissipation fins. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0025] like Figures 1-5 As shown,

[0026] This embodiment provides a heat insulation mechanism for a biomass hot air furnace, including a furnace body 1 and a heat insulation mechanism installed on the furnace body 1. The furnace body 1 is provided with a wind chamber 11 and a heat exchange chamber 12. A fan 13 is installed in the wind chamber 11, and an air guide box 14 is connected to the outside of the fan 13 so as to guide the airflow into the heat exchange chamber 12 through the air guide box 14.

[0027] The heat insulation mechanism includes air distribution boxes 2 installed on both sides of the air guide box 14 and heat insulation layers 3 distributed at the outer end of the furnace body 1. The heat insulation layer 3 is provided with heat dissipation channels 31 for airflow. The air distribution box 2 is connected to the air guide box 14. The outer end of the air distribution box 2 guides the airflow into the corresponding heat dissipation channel 31 through the flow channel 33.

[0028] The furnace body 1 is provided with an air inlet 15 on the side away from the air chamber 11, and the heat insulation layer 3 is provided with an exhaust channel 32 that is connected to the heat dissipation channel 31, and the hot airflow is introduced into the air inlet 15 through the exhaust channel 32.

[0029] In this embodiment, a control device for adjusting the intake air volume is provided on one side of the air distribution box 2, and a through hole communicating with the air guide box 14 is provided on one side of the air distribution box 2. The control device includes a rotating plate 21 rotatably installed at a corresponding position in the through hole and an electric cylinder 22 for driving the rotating plate 21. One side of the rotating plate 21 is fixedly installed on a rotating shaft 23, and is rotatably installed at a corresponding position in the air guide box 14 via the rotating shaft 23. The rotating shaft 23 passes through the lower end of the air guide box 14, and a support 24 is fixedly installed at the outer end of the rotating shaft 23. One side of the electric cylinder 22 is rotatably installed at a corresponding position in the air guide box 14, and a connecting rod 25 is fixedly provided at the outer end of the output rod of the electric cylinder 22, and is rotatably connected to the support 24 via the connecting rod 25 to control the rotation of the rotating shaft 23. The electric cylinder 22 adjusts the rotation of the rotating shaft 23 through the connecting rod 25, and the rotating shaft 23 drives the rotating plate 21 to move into the air guide box 14 to increase the intake air flow into the air distribution box 2, so as to adjust the heat dissipation effect according to the needs.

[0030] The outer end of the air distribution box 2 is provided with a plurality of air guide pipes 26, and the air distribution box 2 is provided with baffles 27 for each air guide pipe 26 to disperse the airflow. The outer end of the air guide pipe 26 is connected to the corresponding guide channel 33 to introduce airflow into the corresponding heat insulation layer 3.

[0031] In this embodiment, the heat insulation jacket 3 is respectively arranged around the furnace body 1. The air guide pipe 26 guides the airflow into the corresponding heat dissipation channel 31 through the flow guide channel 33 to cool the heat insulation jacket 3. The heat dissipation channel 31 is provided with a flow divider plate 34 to divide the airflow introduced by the flow guide channel 33. Heat dissipation fins 35 are also distributed in the heat dissipation channel 31 to increase the heat dissipation effect of the heat insulation jacket 3. The heat dissipation fins 35 are arranged at intervals.

[0032] In this embodiment, the air inlet 15 is provided on both sides of the furnace body 1, and the furnace body 1 is provided with a baffle plate 16 corresponding to the air inlet 15. The baffle plate 16 is inclined on one side of the air inlet 15 to prevent the airflow in the furnace body 1 from being discharged from the air inlet 15. The airflow flowing from the baffle plate 16 will reduce the air pressure at the air inlet 15, thereby guiding the airflow in the heat dissipation channel 31 into the furnace body 1.

[0033] In this embodiment, the heat insulation interlayer 3 at the upper and lower ends of the furnace body 1 respectively guides the airflow into the air inlet 15 through the exhaust channel 32.

[0034] Specifically, the device uses a heat dissipation channel 31 within the insulation jacket 3 to cool the insulation jacket 3 with introduced cold air, thereby preventing heat conduction outwards and reducing the shell temperature of the furnace body 1. The air distribution box 2 is connected to the air guide box 14 via an adjustment control, allowing some airflow from the air guide box 14 to be directed into the heat dissipation channel 31, eliminating the need for an additional fan 13. The adjustment control, by controlling the rotation of the rotary plate 21, can open the through-hole and move the rotary plate 21 into the air guide box 14, facilitating airflow into the air distribution box 2. The air intake of the air distribution box 2 can be adjusted according to the shell temperature. The adjustment control can also be used to control the air temperature at the end of the furnace body 1 by diverting airflow through the air guide box 14, achieving rapid temperature control. Heat dissipation fins 35 are distributed within the insulation jacket 3, further enhancing heat transfer to the shell and achieving rapid cooling.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents. It should be noted that, in this document, the use of relational terms such as "first" and "second" is merely used to distinguish one entity or operation from another, and does not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In the absence of further restrictions, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A heat insulation mechanism for a biomass hot air furnace, comprising a furnace body (1) and a heat insulation mechanism installed on the furnace body (1), wherein the furnace body (1) is provided with a wind chamber (11) and a heat exchange chamber (12), a fan (13) is installed in the wind chamber (11), and a guide box (14) is connected to the outside of the fan (13) to guide airflow into the heat exchange chamber (12) through the guide box (14), characterized in that: The heat insulation mechanism includes air distribution boxes (2) installed on both sides of the air guide box (14) and heat insulation interlayer (3) distributed at the outer end of the furnace body (1). The heat insulation interlayer (3) is provided with heat dissipation channels (31) for airflow. The air distribution box (2) is connected to the air guide box (14). The outer end of the air distribution box (2) guides the airflow into the corresponding heat dissipation channel (31) through the flow channel (33). The furnace body (1) has an air inlet (15) on the side away from the air chamber (11), and the heat insulation layer (3) has an exhaust channel (32) connected to the heat dissipation channel (31), and the hot airflow is introduced into the air inlet (15) through the exhaust channel (32).

2. The heat insulation mechanism for a biomass hot air furnace according to claim 1, characterized in that: The air distribution box (2) is provided with an adjustment control for adjusting the intake air volume on one side. The air distribution box (2) is provided with a through hole communicating with the air guide box (14) on one side. The adjustment control includes a rotating plate (21) rotatably installed at the corresponding position of the through hole and an electric cylinder (22) for driving the rotating plate (21) to move. The rotating plate (21) is fixedly installed on a rotating shaft (23) on one side and rotatably installed at the corresponding position of the air guide box (14) through the rotating shaft (23). The rotating shaft (23) passes through the lower end of the air guide box (14), and a support (24) is fixedly installed at the outer end of the rotating shaft (23). The electric cylinder (22) is rotatably installed at the corresponding position of the air guide box (14) on one side. A connecting rod (25) is fixedly provided at the outer end of the output rod of the electric cylinder (22) and rotatably connected to the support (24) through the connecting rod (25) to control the rotation of the rotating shaft (23).

3. The heat insulation mechanism for a biomass hot air furnace according to claim 2, characterized in that: The outer end of the air distribution box (2) is provided with a number of air guide pipes (26), and the air distribution box (2) is provided with baffles (27) for each air guide pipe (26) to disperse the airflow. The outer end of the air guide pipe (26) is connected to the corresponding guide channel (33) to introduce airflow into the corresponding heat insulation layer (3).

4. The heat insulation mechanism for a biomass hot air furnace according to claim 3, characterized in that: The heat insulation interlayer (3) is respectively arranged around the furnace body (1). The air guide pipe (26) guides the airflow into the corresponding heat dissipation channel (31) through the flow guide channel (33). The heat dissipation channel (31) is provided with a flow divider plate (34) to divide the airflow introduced by the flow guide channel (33). Heat dissipation fins (35) are also distributed in the heat dissipation channel (31). The heat dissipation fins (35) are arranged at intervals.

5. The heat insulation mechanism for a biomass hot air furnace according to claim 3, characterized in that: The air inlet (15) is located on both sides of the furnace body (1), and a baffle plate (16) is provided inside the furnace body (1) corresponding to the air inlet (15). The baffle plate (16) is inclined and located on one side of the air inlet (15).

6. The heat insulation mechanism for a biomass hot air furnace according to claim 1, characterized in that: The heat insulation interlayer (3) at the upper and lower ends of the furnace body (1) respectively guides the airflow into the air inlet (15) through the exhaust channel (32).

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