A return air furnace

Abstract

The utility model discloses a return air furnace, include: mounting panel, and mounting panel is equipped with the air hole, and the furnace wall cover is fixed on the mounting panel, and the air hole is at the mounting panel surface that the furnace wall cover wraps, be equipped with through -hole A on the furnace wall cover lateral wall, install the tower shape electric heating tube on the mounting panel in the furnace wall cover inside. The electric heating tube passes through the electricity heating, and the air in the furnace wall cover inside is heated and forms the hot air, and the hot air flows to the furnace body side edge through the through -hole A, the through -hole B, realizes the heating, solved the problem that the prior art side edge can not through the warm air diffusion and heat.

Description

Technical Field

[0001] This utility model relates to a return air stove, belonging to the technical field of heating stoves. Background Technology

[0002] When using an electric heating furnace for heating, the main factors affecting the heating effect are warm air diffusion and heat radiation.

[0003] Existing electric heating furnaces (see Chinese Patent Publication No. CN220931219U) can provide warmth from the top through thermal radiation, but they cannot provide warmth from the sides through the diffusion of warm air. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a return air furnace.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a return air furnace, comprising:

[0007] A return air furnace capable of generating circulating return air.

[0008] The return air furnace includes: a mounting plate, the mounting plate being provided with ventilation holes;

[0009] A furnace wall sleeve is fixed to a mounting plate, and ventilation holes are located on the mounting plate surface covered by the furnace wall sleeve. A through hole A is provided on the side wall of the furnace wall sleeve.

[0010] Tower-shaped electric heating tubes are installed on the mounting plate inside the furnace wall sleeve.

[0011] The electric heating tube power supply is connected in series with the controller and the power switch.

[0012] It also includes the furnace body, with the controller and power switch installed at the bottom of the furnace body.

[0013] The furnace body is provided with a through hole B.

[0014] The furnace body has a top hole, and a protective mesh plate is installed at the top hole.

[0015] A cover plate is installed at the top hole of the furnace body above the perforated plate.

[0016] The through holes A and B are rectangular or circular holes.

[0017] The top surface of the furnace body is rectangular or circular.

[0018] The beneficial effects of this utility model are as follows: when the electric heating tube is energized, the air inside the furnace wall is heated to form hot air, and the hot air flows to the side of the furnace body through through holes A and through holes B to achieve heating, which solves the problem that the side cannot be heated by the diffusion of warm air in the prior art. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model when the cover plate is closed;

[0020] Figure 2 This is a structural diagram of the present invention when the cover plate is installed;

[0021] Figure 3 This is a structural diagram of the present invention without the cover plate installed;

[0022] In the diagram: 1-Mounting plate; 11-Ventilation hole; 2-Furnace wall sleeve; 21-Through hole A; 3-Heating tube; 31-Controller; 32-Power switch; 4-Furnace body; 41-Through hole B; 42-Mesh plate; 43-Cover plate. Detailed Implementation

[0023] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0024] like Figures 1 to 3 As shown.

[0025] A return air furnace according to this application includes:

[0026] A mounting plate 1 with ventilation holes 11 is provided, and a furnace wall sleeve 2 is fixed on the mounting plate 1. The ventilation holes 11 are located on the surface of the mounting plate 1 covered by the furnace wall sleeve 2. A through hole A21 is provided on the side wall of the furnace wall sleeve 2.

[0027] A tower-shaped electric heating tube 3 is installed on the mounting plate 1 inside the furnace wall sleeve 2. The electric heating tube 3 is connected in series with a controller 31 and a power switch 32. When the power switch 32 is closed, the controller 31 is energized. The controller 31 controls the energization of the electric heating tube 3 and the energizing power.

[0028] It also includes a furnace body 4, with a controller 31 and a power switch 32 installed at the bottom of the furnace body 4. The furnace body 4 is provided with a through hole B41.

[0029] When the heating element 3 is energized, the air inside the furnace wall sleeve 2 is heated to form hot air. This hot air flows towards the side of the furnace body 4 through through holes A21 and B41, thus providing warmth and solving the problem of existing technologies where warm air cannot be diffused from the side. As the hot air diffuses through the furnace wall sleeve 2, cold air enters through the vent 11 of the mounting plate 1 to replenish the air and form a circulating return air.

[0030] The top of the furnace body 4 is provided with a top hole, and a mesh plate 42 is installed at the top hole for protection. When heating through the top hole of the furnace body 4, it is to prevent debris or human hands from entering the furnace wall sleeve 2 and coming into contact with the electric heating tube 3.

[0031] A cover plate 43 is installed at the top hole of the furnace body 4 above the mesh plate 42, and the cover plate 43 can completely cover the top hole of the furnace body 4.

[0032] The through holes A21 and B41 can be any shape, such as rectangular holes or circular holes.

[0033] The top surface of the furnace body 4 can be any shape, such as rectangular or circular.

Claims

1. A return air furnace, characterized in that, include: Mounting plate (1), the mounting plate (1) is provided with ventilation holes (11); Furnace wall sleeve (2), the furnace wall sleeve (2) is fixed on the mounting plate (1), the ventilation hole (11) is located on the mounting plate (1) wrapped by the furnace wall sleeve (2), and the side wall of the furnace wall sleeve (2) is provided with a through hole A (21); A return air furnace capable of generating recirculating return air; A tower-shaped electric heating tube (3) is installed on the mounting plate (1) inside the furnace wall sleeve (2); The electric heating tube (3) is connected in series with a power supply controller (31) and a power switch (32); It also includes a furnace body (4), and a controller (31) and a power switch (32) installed at the bottom of the furnace body (4); The furnace body (4) is provided with a through hole B (41).

2. The return air furnace as described in claim 1, characterized in that: The furnace body (4) has a top hole at the top, and a protective mesh plate (42) is installed at the top hole; a cover plate (43) is installed at the top hole of the furnace body (4) above the mesh plate (42).

3. The return air furnace as described in claim 1, characterized in that: The through hole A (21) is a rectangular hole or a circular hole.

4. The return air furnace as described in claim 1, characterized in that: The top surface of the furnace body (4) is rectangular or circular; the through hole B (41) is a rectangular hole or a circular hole.

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