Hot blast stove utilizing circulating air to insulate heat

Abstract

The utility model provides a hot-blast stove utilizing circulating air to insulate heat, which comprises a box body, a combustion chamber and a heat exchange chamber which are sequentially arranged in the box body, an air supply chamber is arranged on one side of the box body positioned on the heat exchange chamber, a fan is arranged in the air supply chamber, and an output end of the fan is communicated with the heat exchange chamber through an air supply box to guide air into the heat exchange chamber. And the air is discharged from an air outlet cylinder at the top of the combustion chamber. The outer end of the combustion chamber and the outer end of the heat exchange chamber are of a double-layer plate-shaped structure so as to form a runner space where air can flow, heat radiation is relieved through an air interlayer, air supply branch pipes for ventilating the runner space are arranged on the two sides of the air supply box correspondingly, and the guided-in air volume is controlled through an adjusting assembly so as to cool an inner container plate and the runner space. Therefore, the heat insulation effect is achieved, hot air for heat exchange in the flow channel space is guided into the air outlet barrel again, and the heat utilization efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of hot air furnace technology, specifically a hot air furnace that utilizes circulating air for insulation. Background Technology

[0002] A biomass hot air furnace is a device that provides heat energy using biomass pellets as fuel. The combustion chamber and heat exchange chamber inside the hot air furnace have very high temperatures, and heat radiation can easily affect the temperature around the hot air furnace and the operation of electrical equipment in the device. The traditional method is to thicken the outer shell of the hot air furnace and install a heat insulation layer inside the shell to prevent heat transfer. However, adding a heat insulation layer to the hot air furnace makes it inconvenient to disassemble and maintain, and increases costs. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a hot air furnace that utilizes circulating air for insulation, thereby addressing the problems mentioned in the background art.

[0004] The technical problem solved by this utility model is achieved by the following technical solution: a hot air furnace with circulating air insulation, including a box body, a combustion chamber and a heat exchange chamber arranged in sequence inside the box body, an air supply chamber located on one side of the heat exchange chamber, a fan installed in the air supply chamber, and the output end of the fan connected to the heat exchange chamber through the air supply box to introduce air into the heat exchange chamber and discharge it from the air outlet duct at the top of the combustion chamber.

[0005] The combustion chamber and heat exchanger are provided with an inner liner at their outer ends, and the housing is provided with an outer shell plate spaced apart from the inner liner plate, so that a flow channel space with heat insulation function is formed between the inner liner plate and the outer shell plate.

[0006] Air supply branch pipes are installed on both sides of the air supply box. The air supply branch pipes connect the air supply box and the flow channel space to use circulating air to cool the flow channel space and then lead it out from the air outlet, thereby reducing the temperature of the flow channel space and achieving a heat insulation effect.

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

[0008] The air supply box is equipped with an adjustment component for adjusting the air volume supplied to the air supply branch pipe. The adjustment component includes an adjustment plate set at the through hole of the air supply branch pipe and an adjustment shaft for rotating the adjustment plate. The upper end of the air supply box is equipped with a linkage component that drives the adjustment shafts on both sides to move synchronously, so as to realize the air volume adjustment in the flow channel space.

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

[0010] The linkage includes an electric push rod and a rod seat located at the outer end of the output rod of the electric push rod. Linkage plates are rotatably mounted on both sides of the rod seat. A shaft plate is fixedly mounted on the upper end of the adjusting shaft, and the side of the shaft plate away from the adjusting shaft is rotatably connected to the linkage plate. Specifically, the electric push rod controls the extension and retraction of the rod seat. The rod seat pulls the shaft plate to rotate along the adjusting shaft via the linkage plate, thereby adjusting the angle of the adjusting plate to change the air intake volume.

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

[0012] The upper part of the box is provided with a partition that separates the two flow channels. The flow channels on both sides are provided with guide plates that help the airflow to flow along the S-shaped structure in the flow channel space and be guided to the air outlet.

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

[0014] The outer side of the air outlet duct is provided with an air receiving box for receiving airflow. The inner side of the air receiving box is connected to the air outlet duct. A baffle plate is provided in the air outlet duct corresponding to the air introduced. The baffle plate is set on the side of the air inlet introduced by the air receiving box to separate the air exported from the combustion chamber and prevent the air exported from the combustion chamber from entering the flow channel space.

[0015] Compared with existing technologies, the beneficial effects of this invention are as follows: the outer ends of the combustion chamber and heat exchange chamber are double-layered plate structures to form a flow channel space for airflow. The air gap reduces heat radiation. Air supply branch pipes are provided on both sides of the air supply box to ventilate the flow channel space. The airflow is controlled by an adjustment component to cool the inner liner and flow channel space, thus achieving a heat insulation effect. The hot air exchanged in the flow channel space is then reintroduced into the exhaust duct, improving heat utilization efficiency. This device can also control the adjustment plate via an electric push rod to distribute the airflow into the heat exchange chamber and flow channel space, adjusting the temperature within the flow channel space and the temperature of the air exiting the exhaust duct. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial cross-sectional view of the present invention.

[0018] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the flow channel space structure of this utility model;

[0020] The diagram shows the following components: 1. Housing; 2. Air supply box; 3. Flow channel space; 11. Combustion chamber; 12. Heat exchange chamber; 13. Air supply chamber; 14. Fan; 15. Air outlet duct; 16. Inner liner plate; 17. Outer shell plate; 18. Baffle plate; 21. Air supply branch pipe; 22. Adjusting plate; 23. Adjusting shaft; 24. Electric push rod; 25. Rod seat; 26. Linkage plate; 27. Shaft plate; 31. Partition plate; 32. Guide plate; 33. Air collection box. Detailed Implementation

[0021] 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.

[0022] like Figures 1-4 As shown,

[0023] This embodiment provides a hot air furnace with circulating air insulation, including a housing 1, a combustion chamber 11 and a heat exchange chamber 12 arranged sequentially in the housing 1. The housing 1 has an air supply chamber 13 on one side of the heat exchange chamber 12. A fan 14 is installed in the air supply chamber 13. The output end of the fan 14 is connected to the heat exchange chamber 12 through the air supply box 2 to introduce air into the heat exchange chamber 12 and discharge it from the air outlet duct 15 at the top of the combustion chamber 11.

[0024] The combustion chamber 11 and the heat exchange chamber 12 are provided with an inner liner plate 16 at their outer ends, and the housing 1 is provided with an outer shell plate 17 spaced apart from the inner liner plate 16, so that a flow channel space 3 with heat insulation function is formed between the inner liner plate 16 and the outer shell plate 17.

[0025] Air supply branch pipes 21 are installed on both sides of the air supply box 2. The air supply branch pipes 21 connect the air supply box 2 and the flow channel space 3 to use circulating air to cool the flow channel space 3 and lead it out from the air outlet duct 15, thereby reducing the temperature of the flow channel space 3 and achieving a heat insulation effect.

[0026] In this embodiment, the air supply box 2 is provided with an adjustment component for adjusting the air volume supplied to the air supply branch pipe 21. The adjustment component includes an adjustment plate 22 set at the through hole of the air supply branch pipe 21 and an adjustment shaft 23 for rotating the adjustment plate 22. The upper end of the air supply box 2 is provided with a linkage component that drives the adjustment shafts 23 on both sides to move synchronously, so as to realize the air volume adjustment in the flow channel space 3.

[0027] The linkage includes an electric push rod 24 and a rod seat 25 disposed at the outer end of the output rod of the electric push rod 24. Linkage plates 26 are rotatably mounted on both sides of the rod seat 25. A shaft plate 27 is fixedly disposed at the upper end of the adjusting shaft 23, and the side of the shaft plate 27 away from the adjusting shaft 23 is rotatably connected to the linkage plate 26. Specifically, the electric push rod 24 controls the extension and retraction of the rod seat 25. The rod seat 25 pulls the shaft plate 27 to rotate along the adjusting shaft 23 via the linkage plate 26, thereby adjusting the angle of the adjusting plate 22 to change the air intake volume.

[0028] In this embodiment, the upper end of the housing 1 is provided with a partition 31 that separates the two side flow channel spaces 3, and the two side flow channel spaces 3 are provided with guide plates 32 that help the airflow to flow in the flow channel space 3 along the S-shaped structure and be guided to the air outlet 15.

[0029] The outer side of the air outlet duct 15 is provided with an air receiving box 33 for receiving airflow. The inner side of the air receiving box 33 is connected to the air outlet duct 15. The air outlet duct 15 is provided with a baffle plate 18 corresponding to the air introduced. The baffle plate 18 is located on the side of the air inlet introduced by the air receiving box 33 to separate the air discharged from the combustion chamber 11 and prevent the air discharged from the combustion chamber 11 from entering the flow channel space 3.

[0030] The working principle of this invention is as follows: the outer ends of the combustion chamber 11 and the heat exchange chamber 12 are double-layered plate structures to form an airflow channel space 3. The air gap reduces heat radiation. Air supply branch pipes 21 are provided on both sides of the air supply box 2 to ventilate into the airflow channel space 3. The airflow is controlled by an adjustment component to cool the inner liner plate 16 and the airflow channel space 3, thereby achieving a heat insulation effect. The hot air exchanged in the airflow channel space 3 is then reintroduced into the exhaust duct 15, improving heat utilization efficiency. The device can also control the movement of the adjustment plate 22 via an electric push rod 24 to distribute the airflow into the heat exchange chamber 12 and the airflow channel space 3, thereby adjusting the temperature within the airflow channel space 3 and the temperature of the air exiting the exhaust duct 15.

[0031] 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 hot air furnace using circulating air insulation, comprising a housing, a combustion chamber and a heat exchange chamber sequentially arranged within the housing, and an air supply chamber located on one side of the housing near the heat exchange chamber, wherein a fan is installed in the air supply chamber, characterized in that: The blower's output end is connected to the heat exchange chamber via an air supply box to guide air into the heat exchange chamber and discharge it from the air outlet at the top of the combustion chamber; The combustion chamber and heat exchanger are provided with an inner liner at their outer ends, and the housing is provided with an outer shell plate spaced apart from the inner liner plate, so that a flow channel space with heat insulation function is formed between the inner liner plate and the outer shell plate. Air supply branch pipes are installed on both sides of the air supply box. The air supply branch pipes connect the air supply box and the flow channel space to use circulating air to cool the flow channel space and then lead it out from the air outlet, thereby reducing the temperature of the flow channel space.

2. A hot air furnace using circulating air insulation according to claim 1, characterized in that: The air supply box is equipped with an adjustment component for adjusting the air volume supplied to the air supply branch pipe. The adjustment component includes an adjustment plate set at the through hole of the air supply branch pipe and an adjustment shaft for rotating the adjustment plate. The upper end of the air supply box is equipped with a linkage component that drives the adjustment shafts on both sides to move synchronously, so as to realize the air volume adjustment in the flow channel space.

3. A hot air furnace using circulating air insulation according to claim 2, characterized in that: The linkage includes an electric push rod and a rod seat located at the outer end of the output rod of the electric push rod. Linkage plates are rotatably mounted on both sides of the rod seat. A shaft plate is fixedly provided at the upper end of the adjusting shaft, and the side of the shaft plate away from the adjusting shaft is rotatably connected to the linkage plate.

4. A hot air furnace using circulating air insulation according to claim 1, characterized in that: The upper part of the box is provided with a partition that separates the two flow channels. The flow channels on both sides are provided with guide plates that help the airflow to flow along the S-shaped structure in the flow channel space and be guided to the air outlet.

5. A hot air furnace using circulating air insulation according to claim 4, characterized in that: The outer side of the air outlet duct is provided with an air receiving box for receiving airflow. The inner side of the air receiving box is connected to the air outlet duct. A baffle plate is provided in the air outlet duct corresponding to the air introduced. The baffle plate is set on the side of the air inlet introduced by the air receiving box to separate the air exported from the combustion chamber and prevent the air exported from the combustion chamber from entering the flow channel space.

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