Air heater

Abstract

The utility model discloses an air heater which comprises a shell, a first vertically upward cylinder ring is fixedly arranged on the inner bottom wall of the shell, a second cylinder ring located on the inner side of the first cylinder ring is fixedly arranged on the inner bottom wall of the shell, and a partition plate is fixedly arranged between the outer wall of the first cylinder ring and the interior of the front side of the shell. The heating device has the advantages that the heating assembly is movably arranged between the first cylinder ring and the second cylinder ring, the second cover plate extrudes the heating assembly in the shell, the first guide core and the second guide core are powered on, so that the heating rod on the heating assembly generates heat, the first cylinder ring and the second cylinder ring are heated, and then flowing air is heated; and the conductive spring ejects the heating rod out of the frame body, so that the upper end of the heating rod is exposed out of the shell, the heating rod is convenient to overhaul or replace, and the overhaul difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating, in particular to an air heater. Background Art

[0002] The air heater is an electric heating device that mainly heats the gas flow. The heating element is a stainless steel electric heating tube. The stainless steel electric heating tube is a fragile item and needs to be inspected or replaced from time to time. However, the existing electric heating tube is directly fixed to the air heater body, which is not convenient for quick disassembly, increasing the difficulty of maintenance. Utility Model Content

[0003] The utility model aims to solve the problems in the background technology and provides an air heater.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The air heater comprises a shell, the inner bottom wall of the shell is fixedly provided with a vertically upward cylinder ring 1, the inner bottom wall of the shell is fixedly provided with a cylinder ring 2 located on the inner side of the cylinder ring 1, a partition is fixedly provided between the outer wall of the cylinder ring 1 and the front side inner part of the shell, the inner bottom wall of the shell is provided with a connecting port 1 located in the middle of the cylinder ring 2, the inner bottom wall of the shell is provided with a connecting port 2 located on one side of the partition, the front side wall of the shell is provided with an air inlet located on the other side of the partition, the lower side wall of the shell is fixedly provided with a connecting pipe connecting the connecting port 1 and the connecting port 2, a cover plate 1 is fixedly connected between the upper side wall of the cylinder ring 1 and the upper side wall of the shell, the upper end of the cylinder ring 2 extends out of the outer side of the shell, the outer side wall of the cylinder ring 2 is movably sleeved with a cover plate 2, the cover plate 2 is located on the upper side of the cover plate 1, the cover plate 2 is fixedly connected to the upper side wall of the cover plate 1, the outer side wall of the cover plate 2 is provided with two through holes, and a heating component is arranged between the cylinder ring 1 and the cylinder ring 2.

[0006] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: the heating component includes a conductive ring 1 fixed on the inner bottom wall of the shell, the upper side wall of the conductive ring 1 is fixedly provided with a plurality of evenly distributed electric contact terminals 1, the upper side wall of the conductive ring 1 is fixedly provided with a vertically upward guide core 1, the upper end of the guide core 1 extends out of a through hole on the cover plate 2, the outer wall of the guide core 1 is fixedly sleeved with a positioning column, the upper side of the electric contact terminal 1 is movably provided with a frame, the lower side wall of the frame is fixedly provided with an electric contact terminal 2 corresponding to the electric contact terminal 1, a heating rod that contacts the lower end with the electric contact terminal 2 is movably inserted on the frame, a conductive spring is provided between the bottom of the heating rod and the electric contact terminal 2, a conductive ring 2 is provided on the upper side of the frame, the upper side wall of the conductive ring 2 is fixedly connected with a vertical guide core 2, the upper end of the guide core 2 extends out of another through hole on the cover plate 2, the outer wall of the frame is provided with a notch 1 corresponding to the positioning column, and the outer wall of the conductive ring 2 is provided with a notch 2 corresponding to the positioning column.

[0007] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: a plurality of support blocks are fixedly provided on the lower side wall of the shell.

[0008] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: the upper side wall of the second cover plate is provided with a handle located on the upper side of the second cylinder ring.

[0009] The advantages of the utility model are: the heating component is movably arranged between the cylinder ring one and the cylinder ring two, the cover plate two squeezes the heating component inside the shell, and by energizing the guide core one and the guide core two, the heating rod on the heating component generates heat, and the cylinder ring one and the cylinder ring two are heated, and then the air flowing through is heated; after opening the cover plate two, the conductive spring pushes the heating rod out of the frame, so that the upper end of the heating rod leaks out of the shell, which is convenient for maintenance or replacement of the heating rod and reduces the difficulty of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is one of the appearance diagrams of the air heater proposed in the utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of the air heater proposed by the utility model;

[0012] Figure 3 This is a schematic diagram of the heating component structure of the air heater proposed in the utility model;

[0013] Figure 4 This is the second appearance diagram of the air heater proposed by the utility model.

[0014] In the figure: 1 shell, 2 cylinder ring 1, 3 cylinder ring 2, 4 partition, 5 connecting port 1, 6 connecting port 2, 7 air inlet, 8 connecting pipe, 9 cover plate 1, 10 cover plate 2, 11 through hole, 12 conductive ring 1, 13 electric contact terminal 1, 14 guide core 1, 15 positioning column, 16 frame, 17 electric contact terminal 2, 18 heating rod, 19 notch 1, 20 conductive ring 2, 21 guide core 2, 22 notch 2, 23 support block, 24 handle. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0016] Reference Figure 1-Figure 4 As shown, the air heater includes a shell 1 whose inner bottom wall is fixedly provided with a vertically upward cylinder ring 2, the inner bottom wall of the shell 1 is fixedly provided with a cylinder ring 2 3 located on the inner side of the cylinder ring 2, a partition 4 is fixedly provided between the outer wall of the cylinder ring 2 and the front inner part of the shell 1, the inner bottom wall of the shell 1 is provided with a connecting port 1 5 located in the middle of the cylinder ring 2 3, the inner bottom wall of the shell 1 is provided with a connecting port 2 6 located on one side of the partition 4, the front side wall of the shell 1 is provided with an air inlet 7 located on the other side of the partition 4, the lower side wall of the shell 1 is fixedly provided with a connecting pipe 8 connecting the connecting port 1 5 and the connecting port 2 6, the lower side wall of the shell 1 is fixedly provided with a plurality of supporting blocks 23, the air enters the shell 1 from the air inlet 7, then goes around the outer wall of the cylinder ring 2, enters the connecting pipe 8 from the connecting port 2 6, enters the cylinder ring 2 3 from the connecting port 1 5, and finally flows out of the shell 1 from the cylinder ring 2 3 upward.

[0017] A cover plate 9 is fixedly connected between the upper side wall of the cylinder ring 1 2 and the upper side wall of the shell 1. The upper end of the cylinder ring 2 3 extends out of the outer side of the shell 1. The outer side wall of the cylinder ring 2 3 is movably sleeved with a cover plate 2 10. The cover plate 2 10 is located on the upper side of the cover plate 1 9. The cover plate 2 10 is fixedly connected to the upper side wall of the cover plate 1 9. The outer side wall of the cover plate 2 10 is provided with two through holes 11. The upper side wall of the cover plate 2 10 is provided with a handle 24 located on the upper side of the cylinder ring 2 3. A heating component is provided, and the heating component heats the air between the cylinder ring 1 2 and the cylinder ring 2 3. The heated air transfers the heat to the side walls of the cylinder ring 1 2 and the cylinder ring 2 3, so that the air flowing through the cylinder ring 1 2 and the cylinder ring 2 3 is heated. In order to prevent the air between the cylinder ring 1 2 and the cylinder ring 2 3 from expanding after being heated and causing damage to the heater, a gap is provided between the cover plate 1 9 and the cover plate 2 10 to keep the air between the cylinder ring 1 2 and the cylinder ring 2 3 connected to the outside world to a certain extent.

[0018] The heating assembly includes a conductive ring 12 fixed to the inner bottom wall of the housing 1, a plurality of evenly distributed electric contact terminals 13 are fixedly arranged on the upper side wall of the conductive ring 12, a vertically upward guide core 14 is fixedly arranged on the upper side wall of the conductive ring 12, the upper end of the guide core 14 extends out of a through hole 11 on the cover plate 2 10, a positioning column 15 is fixedly sleeved on the outer wall of the guide core 14, a frame 16 is movably arranged on the upper side of the electric contact terminal 13, and a lower side wall of the frame 16 is fixedly arranged An electric contact terminal 2 17 corresponding to the electric contact terminal 13 is arranged, and a heating rod 18 is movably inserted on the frame 16, the lower end of which contacts the electric contact terminal 2 17, and a conductive spring is arranged between the bottom of the heating rod 18 and the electric contact terminal 2 17. When the upper end of the heating rod 18 is not subjected to external force, the conductive spring pushes the heating rod 18 upward, so that the upper end of the heating rod 18 leaks out of the outside of the shell 1, which is convenient for manipulating the heating rod 18 and removing the heating rod 18 from the frame 16 for inspection or replacement.

[0019] A conductive ring 20 is arranged on the upper side of the frame 16, and a vertical guide core 21 is fixedly connected to the upper side wall of the conductive ring 20, and the upper end of the guide core 21 extends out of another through hole 11 on the cover plate 10. A notch 19 corresponding to the positioning column 15 is arranged on the outer wall of the frame 16, and a notch 22 corresponding to the positioning column 15 is arranged on the outer wall of the conductive ring 20. When the frame 16 is placed between the cylinder ring 12 and the cylinder ring 23, the notch 19 is engaged with the positioning column 15 on the conductive ring 12, and the electric contact terminal 2 17 on the frame 16 can be quickly aligned with the electric contact terminal 13 on the conductive ring 12, thereby improving the installation efficiency. When the conductive ring 20 is placed on the frame 16, The second notch 22 is engaged with the positioning column 15 to facilitate the alignment of the second guide core 21 with the corresponding through hole 11 on the second cover plate 10. After the second cover plate 10 is fixed to the cover plate 19, the first guide core 14 and the second guide core 21 are energized from the outside. The first guide core 14 is connected to the lower end of the heating rod 18 through the electric contact terminal 13 on the conductive ring 12, and the second guide core 21 is connected to the upper end of the heating rod 18 through the conductive ring 20. The heating rod 18 will generate heat when energized. After the air enters the shell 1 from the air inlet 7, it first contacts the outer wall of the cylinder ring 2 to absorb heat. After entering the cylinder ring 3, it contacts the inner wall of the cylinder ring 3 again to absorb heat, and finally flows out. The air is heated twice, and the heating is relatively sufficient.

Claims

1. An air heater comprising a housing (1), characterized in that The inner bottom wall of the shell (1) is fixedly provided with a vertically upward cylinder ring 1 (2), the inner bottom wall of the shell (1) is fixedly provided with a cylinder ring 2 (3) located inside the cylinder ring 1 (2), a partition plate (4) is fixedly provided between the outer wall of the cylinder ring 1 (2) and the front inner part of the shell (1), the inner bottom wall of the shell (1) is provided with a connecting opening 1 (5) located in the middle of the cylinder ring 2 (3), the inner bottom wall of the shell (1) is provided with a connecting opening 2 (6) located on one side of the partition plate (4), the front side wall of the shell (1) is provided with an air inlet (7) located on the other side of the partition plate (4), and the lower side wall of the shell (1) is fixedly provided with a gas inlet (7) located on the other side of the partition plate (4). A connecting pipe (8) is provided to connect the connecting port 1 (5) and the connecting port 2 (6); a cover plate 1 (9) is fixedly connected between the upper side wall of the cylinder ring 1 (2) and the upper side wall of the shell (1); the upper end of the cylinder ring 2 (3) extends out of the outer side of the shell (1); a cover plate 2 (10) is movably sleeved on the outer side wall of the cylinder ring 2 (3); the cover plate 2 (10) is located on the upper side of the cover plate 1 (9); the cover plate 2 (10) is fixedly connected to the upper side wall of the cover plate 1 (9); two through holes (11) are provided on the outer side wall of the cover plate 2 (10); and a heating component is provided between the cylinder ring 1 (2) and the cylinder ring 2 (3).

2. The air heater according to claim 1, characterized in that: The heating assembly comprises a conductive ring (12) fixed to the inner bottom wall of the shell (1), a plurality of evenly distributed electric contact terminals (13) are fixedly provided on the upper side wall of the conductive ring (12), a vertically upward guide core (14) is fixedly provided on the upper side wall of the conductive ring (12), the upper end of the guide core (14) extends out of a through hole (11) on the cover plate (10), a positioning column (15) is fixedly sleeved on the outer wall of the guide core (14), a frame (16) is movably provided on the upper side of the electric contact terminal (13), and an electric contact terminal (17) corresponding to the electric contact terminal (13) is fixedly provided on the lower side wall of the frame (16), and the frame A heating rod (18) is movably inserted on the upper portion of the housing (16) and contacts the lower end of the second electric contact terminal (17); a conductive spring is arranged between the bottom of the heating rod (18) and the second electric contact terminal (17); a conductive ring (20) is arranged on the upper side of the housing (16); a vertical guide core (21) is fixedly connected to the upper side wall of the second conductive ring (20); the upper end of the second guide core (21) extends out of another through hole (11) on the second cover plate (10); a notch (19) corresponding to the positioning column (15) is arranged on the outer wall of the housing (16); and a notch (22) corresponding to the positioning column (15) is arranged on the outer wall of the second conductive ring (20).

3. The air heater according to claim 1, characterized in that: A plurality of support blocks (23) are fixedly arranged on the lower side wall of the housing (1).

4. The air heater according to claim 1, characterized in that: The upper side wall of the second cover plate (10) is provided with a handle (24) located on the upper side of the second cylinder ring (3).

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