Parking heater combustion device

Abstract

The utility model relates to the technical field of parking heaters, in particular to a parking heater combustion device which comprises a combustion device body, the section width of air inlet blocks from the starting end to the ending end is gradually reduced, a plurality of air inlet channels are arranged on the surfaces of the two air inlet blocks, and the air inlet channels are communicated with the combustion device body. The section widths of the multiple air inlet channels from the starting ends to the terminating ends are gradually reduced, and a plurality of air inlet holes are formed in the inner walls of one sides of the multiple air inlet channels. The air inlet blocks are spirally arranged on the surface of the combustion device body, the air inlet channels are arranged in the air inlet blocks, the width of the section from the starting end to the ending end is gradually reduced, the flow speed of air is increased, the two air inlet blocks are each provided with the multiple air inlet channels, upper and lower spiral air inlet covers are formed, and the air inlet efficiency is improved. The air inflow is large; and fuel gas enters from the plurality of fuel inlet pipes, so that sufficient contact between external air and the fuel gas is increased, and the fuel utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of parking heaters, in particular to a combustion device of a parking heater. Background Art

[0002] A parking heater is an in-vehicle heating device independent of an automobile engine, and has its own fuel pipeline, circuit, combustion heating device, control device, etc. It can preheat and warm up the automobile engine and cab parked in a low-temperature and cold environment in winter without starting the engine, and completely eliminate the cold start wear of the automobile.

[0003] For example, the combustion device of a parking heater with the authorized announcement number "CN221146514U". Although it reduces air pollution, improves work efficiency, reduces the noise of the product, saves energy consumption, and is convenient for customers to use, only combustible gas needs to be added. However, for the fuel to burn fully, sufficient oxygen and sufficient contact between the fuel and external air are required. In this device, air is blown into the combustion chamber through the area between the arc-shaped air guide vanes, the air intake volume is small, the air intake method is single and not three-dimensional; and the gas only enters through a single point of the gas supply pipe, reducing the sufficient contact between the external air and the gas, and the combustion is not complete, reducing the fuel utilization rate. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a combustion device of a parking heater.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] Design a combustion device of a parking heater, including a combustion device body. A combustion chamber is arranged inside the combustion device body. A through hole is arranged on the lower inner wall of the combustion chamber. Two air intake blocks are spirally arranged on the surface of the combustion device body. The cross-sectional width of the air intake blocks from the starting end to the ending end decreases. A plurality of air intake channels are arranged on the surfaces of the two air intake blocks. The cross-sectional width of the plurality of air intake channels from the starting end to the ending end decreases. A plurality of air intake holes are arranged on one inner wall of the plurality of air intake channels. The plurality of air intake holes are all communicated with the combustion chamber. A plurality of fuel inlet pipes and an ignition device are arranged on the middle surface of the combustion device body. The plurality of fuel inlet pipes are all communicated with the combustion chamber. Filter devices are sleeved outside the plurality of fuel inlet pipes. The ignition device is communicated with the combustion chamber. An installation flange is annularly arranged on the upper side surface of the combustion device body. A plurality of installation holes are arranged on the surface of the installation flange.

[0007] Preferably, the filtering device includes a support block, one end of the support block is connected to the inner wall of the combustion chamber, a filter screen is provided at the end of the support block away from the inner wall of the combustion chamber, and the middle of the filter screen bulges away from the fuel inlet pipe.

[0008] Preferably, a plurality of the air inlet holes are inclined in the spiral direction of the air inlet block from outside to inside.

[0009] Preferably, the number of the fuel inlet pipes is three, and the three fuel inlet pipes are arranged at three quadrants of the combustion chamber.

[0010] Preferably, a plurality of air outlet blocks are provided on the inner wall of the combustion chamber corresponding to the air inlet holes one by one. The plurality of air outlet blocks are inclined in the spiral direction of the air inlet block from outside to inside. A first air outlet hole is provided on the surface of one side of the plurality of air outlet blocks away from the inner wall of the combustion chamber. The first air outlet hole is communicated with the air inlet hole. A second air outlet hole is provided on the surface of the front side of the plurality of air outlet blocks relative to the spiral direction of the air inlet block. The first air outlet hole is communicated with the second air outlet hole.

[0011] Preferably, a plurality of support blocks are provided on the combustion chamber in the vertical direction.

[0012] For a combustion device of a parking heater proposed by the present utility model, the beneficial effects are as follows: the provided air inlet block is spirally arranged on the surface of the combustion device body, and the cross-sectional width of the air inlet channel provided inside the air inlet block decreases from the starting end to the terminating end, which accelerates the air flow rate. A plurality of air inlet channels are provided in both air inlet blocks, and a plurality of air inlet holes are provided on the inner wall of one side of the plurality of air inlet channels, forming a two-layer spiral air inlet coverage. The air intake volume is large and the air intake method is rich and three-dimensional; and the gas enters through a plurality of fuel inlet pipes, increasing the full contact between the external air and the gas, burning thoroughly and improving the fuel utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a partial structural sectional view of the present utility model;

[0015] Figure 3 is a top sectional view of the present utility model;

[0016] Figure 4 is an enlarged view of position A of the present utility model.

[0017] In the figure: combustion device body 1, combustion chamber 2, through hole 3, air inlet block 4, air inlet channel 5, air inlet hole 6, fuel inlet pipe 7, ignition device 8, mounting flange 9, mounting hole 10, support block 11, filter screen 12, air outlet block 13, first air outlet hole 14, second air outlet hole 15, reinforcing rib 16. Detailed implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] Refer to Figures 1-4 , a combustion device for a parking heater, including a combustion device body 1. A combustion chamber 2 is provided inside the combustion device body 1. A through hole 3 is provided on the lower inner wall of the combustion chamber 2. Two air intake blocks 4 are spirally provided on the surface of the combustion device body 1. The cross-sectional width of the air intake block 4 from the starting end to the ending end decreases. A plurality of air intake channels 5 are provided on the surface of both air intake blocks 4. The cross-sectional width of the plurality of air intake channels 5 from the starting end to the ending end decreases. External air flows from a large-area channel to a small-area channel, and the air flow rate increases. A plurality of air intake holes 6 are provided on one inner wall of the plurality of air intake channels 5. The plurality of air intake holes 6 ensure full mixing of external air and gas, improving the combustion utilization rate. The plurality of air intake holes 6 are all communicated with the combustion chamber 2. A plurality of fuel inlet pipes 7 and an ignition device 8 are provided on the middle surface of the combustion device body 1. The fuel inlet pipes 7 and the ignition device 8 are arranged in the middle of the combustion device body 1, and external air enters from above and below, facilitating full mixing with gas. The plurality of fuel inlet pipes 7 are all communicated with the combustion chamber 2. A filtering device is sleeved outside each of the plurality of fuel inlet pipes 7. The filtering device plays a role in filtering impurities. The ignition device 8 is communicated with the combustion chamber 2. An installation flange 9 is annularly provided on the upper side surface of the combustion device body 1. A plurality of installation holes 10 are provided on the surface of the installation flange 9. The installation flange 9 facilitates the installation and fixation of the combustion device.

[0020] The filtering device includes a support block 11. One end of the support block 11 is connected to the inner wall of the combustion chamber 2. A filter screen 12 is provided at the end of the support block 11 away from the inner wall of the combustion chamber 2. The middle of the filter screen 12 bulges in the direction away from the fuel inlet pipe 7. The filter screen 12 can filter out non-combustible impurities, extending the service life of the combustion device.

[0021] The plurality of air intake holes 6 are all inclined from the outside to the inside in the spiral direction of the air intake block 4. The air intake holes 6 are in the same spiral direction as the air intake block 4, enabling external air to fully spiral into the combustion chamber 2 and increasing the contact area between air and gas.

[0022] The number of fuel inlet pipes 7 is three, and the three fuel inlet pipes 7 are arranged at three quadrants of the combustion chamber 2. This ensures that there is a fuel inlet pipe 7 at each angle relative to the ignition device 8.

[0023] A plurality of air outlet blocks 13 are provided on the inner wall of the combustion chamber 2 corresponding to the air inlet holes 6 one by one. The air outlet blocks 13 also play a role in strengthening the air inlet holes 6. The plurality of air outlet blocks 13 are inclined in the spiral direction of the air inlet block 4 from outside to inside. On the side surface of each of the plurality of air outlet blocks 13 away from the inner wall of the combustion chamber 2, a first air outlet hole 14 is provided. The first air outlet hole 14 is communicated with the air inlet hole 6. On the front side surface of each of the plurality of air outlet blocks 13 relative to the spiral direction of the air inlet block 4, a second air outlet hole 15 is provided. The first air outlet hole 14 is communicated with the second air outlet hole 15. The second air outlet hole 15 plays a role in increasing the angle of the external air entering the combustion chamber 2. And the air coming out of the second air outlet hole 15 will hit the air outlet block 13 and change the direction again, making the combustion of the gas and the external air more sufficient.

[0024] A plurality of support blocks 11 are provided on the combustion chamber 2 in the vertical direction. The plurality of support blocks 11 play a role in strengthening the combustion device body 1.

[0025] Working principle: The external fan sends the external air into the combustion chamber 2 through a plurality of air inlet channels 5. At this time, the gas enters the combustion chamber 2 through a plurality of fuel inlet pipes 7. The ignition device 8 works to make the gas burn when heated. The air inlet block 4 is spirally arranged on the surface of the combustion device body 1. And the air inlet channel 5 arranged inside the air inlet block 4 has a cross-sectional width that gradually decreases from the starting end to the terminating end, which speeds up the air flow rate. A plurality of air inlet channels 5 are provided on both air inlet blocks 4. A plurality of air inlet holes 6 are provided on the inner wall of one side of the plurality of air inlet channels 5, forming a two-layer spiral air inlet coverage. The air intake volume is large and the air intake method is rich and three-dimensional. And the gas enters through a plurality of fuel inlet pipes 7, increasing the full contact between the external air and the gas, burning thoroughly and improving the fuel utilization rate.

[0026] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A parking heater combustion device, comprising a combustion device body (1), characterized in that, Inside the combustion device body (1), there is a combustion chamber (2). The lower inner wall of the combustion chamber (2) is provided with a through hole (3). On the surface of the combustion device body (1), two air intake blocks (4) are spirally arranged. The cross-sectional width of the air intake block (4) decreases from the starting end to the ending end. On the surfaces of both air intake blocks (4), there are a plurality of air intake channels (5). The cross-sectional width of the plurality of air intake channels (5) decreases from the starting end to the ending end. On one inner wall of the plurality of air intake channels (5), there are a plurality of air intake holes (6). The plurality of air intake holes (6) are all communicated with the combustion chamber (2). On the middle surface of the combustion device body (1), there are a plurality of fuel inlet pipes (7) and an ignition device (8). The plurality of fuel inlet pipes (7) are all communicated with the combustion chamber (2). Filter devices are sleeved outside the plurality of fuel inlet pipes (7). The ignition device (8) is communicated with the combustion chamber (2). On the upper side surface of the combustion device body (1), an installation flange (9) is annularly arranged. On the surface of the installation flange (9), there are a plurality of installation holes (10).

2. The combustion device of a parking heater according to claim 1, characterized in that, The filter device includes a support block (11). One end of the support block (11) is connected to the inner wall of the combustion chamber (2). At the end of the support block (11) away from the inner wall of the combustion chamber (2), there is a filter net (12). The middle of the filter net (12) bulges away from the fuel inlet pipe (7).

3. The combustion device of a parking heater according to claim 1, characterized in that, The plurality of air intake holes (6) are all inclined from the outside to the inside in the spiral direction of the air intake block (4).

4. A parking heater combustion device according to claim 1, characterized in that, The number of the fuel inlet pipes (7) is three. The three fuel inlet pipes (7) are arranged at three quadrants of the combustion chamber (2).

5. A combustion device of a parking heater according to claim 1, characterized in that, On the inner wall of the combustion chamber (2), corresponding to the air intake holes (6), there are a plurality of air outlet blocks (13). The plurality of air outlet blocks (13) are all inclined from the outside to the inside in the spiral direction of the air intake block (4). On the side surface of the plurality of air outlet blocks (13) away from the inner wall of the combustion chamber (2), there are first air outlet holes (14). The first air outlet holes (14) are communicated with the air intake holes (6). On the front side surface of the plurality of air outlet blocks (13) relative to the spiral direction of the air intake block (4), there are second air outlet holes (15). The first air outlet holes (14) are communicated with the second air outlet holes (15).

6. The combustion device of a parking heater according to claim 1, characterized in that A plurality of support blocks (11) are arranged in the combustion chamber (2) along the vertical direction.

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