Combustion chamber of parking heater

Abstract

The utility model discloses a combustion chamber of a parking heater, which comprises a shell, a combustion chamber, a combustion chamber and a combustion chamber, wherein one end of the shell is provided with a heat output opening; a primary combustion cavity is formed in the net cylinder, the net cylinder is coaxially arranged in the shell, a secondary combustion cavity is formed between the outer side wall of the net cylinder and the inner side wall of the shell and is communicated with the shell, one end of the net cylinder is fixed to an end plate at the other end of the shell, and the other end of the net cylinder is sealed through a sealing plate; an air inlet hole I and a gas inlet hole which are communicated with the primary combustion cavity and an air inlet hole II which is communicated with the secondary combustion cavity are formed in the end plate. According to the combustion chamber of the parking heater, the combustion stability can be improved, the deflagration phenomenon can be prevented, the utilization rate of fuel gas can be improved, the fuel gas can be fully combusted, and the emission concentration of CO is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of parking heaters, and more particularly to a combustion chamber of a parking heater. Background Art

[0002] As an important part of the automobile auxiliary heating system, parking heaters are widely used in various vehicles to provide functions such as interior heating and engine preheating.

[0003] Existing parking heaters typically utilize a dual-layer combustion chamber design, with both inner and outer layers interconnected. Gas and oxidant burn in the inner layer and enter the outer layer. This not only helps evenly distribute heat, but also increases the heat capacity of the combustion chamber and optimizes the heat exchange process. This design can easily cause the gas and oxidant to enter the outer layer before they are evenly mixed and fully burned, leading to unstable combustion in the outer layer and a high risk of deflagration. This not only damages the combustion chamber structure but can also affect the safety and stability of the entire parking heater, posing a significant safety risk. It also reduces gas utilization and can easily lead to an increase in incomplete combustion products, such as carbon monoxide (CO). If these harmful gases exceed standard limits during emission, they will pollute the environment and pose a health risk to users.

[0004] Therefore, how to provide a combustion chamber for a parking heater that can improve combustion stability, prevent deflagration, increase gas utilization, ensure full combustion, and reduce CO emission concentration is an urgent problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the utility model provides a combustion chamber of a parking heater, which can improve the stability of combustion, prevent the occurrence of deflagration, and improve the utilization rate of gas, so that it can be fully burned and reduce the emission concentration of CO.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A combustion chamber of a parking heater, comprising:

[0008] a shell, wherein one end of the shell is provided with a heat output opening;

[0009] The mesh cylinder has a primary combustion chamber inside, is coaxially arranged inside the shell, and a secondary combustion chamber is formed between its outer wall and the inner wall of the shell and is connected. One end of the mesh cylinder is fixed to the end plate at the other end of the shell, and the other end is closed by a sealing plate;

[0010] The end plate is provided with an air inlet hole 1 and a gas inlet hole communicated with the primary combustion chamber, and an air inlet hole 2 communicated with the secondary combustion chamber.

[0011] Through the above technical solution, the utility model provides a combustion chamber of a parking heater, which realizes stratified combustion through the arrangement of the primary combustion chamber and the secondary combustion chamber. The arrangement of the air inlet hole 1 and the air inlet hole 2 ensures sufficient air supply in the primary combustion chamber and the secondary combustion chamber, thereby improving the stability of combustion, preventing the occurrence of deflagration, improving the utilization rate of gas, and ensuring the full combustion of gas, thereby reducing the emission concentration of CO, ensuring that the emission concentration of CO meets environmental protection requirements, and further protecting the environment and user health.

[0012] Furthermore, the shell and the net cylinder are both cylindrical in structure, with the net cylinder being shorter than the shell. The shell is made of 310S material, and the net cylinder is made of iron-chromium-aluminum material.

[0013] The mesh number of the mesh tube is 60 mesh / square millimeter.

[0014] The thickness of the cylinder wall of the mesh cylinder is 2-3 mm.

[0015] Furthermore, the gas supply pipe is further included, and the gas supply pipe is connected to the gas inlet hole. The gas supply pipe is made of 310S material.

[0016] Preferably, an air inlet hole is opened at a position of the end plate corresponding to the primary combustion chamber, and a plurality of arc-shaped air guide vanes are fixed vertically and spaced apart in the circumferential direction corresponding to the air inlet hole on the outer side of the end plate, and an air inlet hole of a swirl-type air inlet structure is formed between two adjacent arc-shaped air guide vanes and is connected to the air inlet hole; a cover plate is fixed at one end of the plurality of arc-shaped air guide vanes corresponding to the end away from the end plate, and a gas inlet hole is opened on the cover plate and is connected to the air inlet hole.

[0017] This structure guides air into the primary combustion chamber in a swirling pattern, allowing the air and gas to mix more thoroughly within the combustion chamber, promoting more complete combustion of the gas and improving combustion efficiency. Furthermore, the swirling air intake creates a stable air flow field, reducing airflow disturbances and eddy dead zones within the combustion chamber, making flame propagation more uniform and stable, and improving the stability of the combustion process. It also helps distribute the heat generated by combustion more evenly within the combustion chamber, reducing local overheating or uneven temperatures. This helps extend the service life of the combustion chamber and improves the thermal efficiency of the entire heating system.

[0018] Preferably, the combustion chamber is in a closed space, and the closed space is equipped with a blower. When the blower is in operation, the wind pressure of the blower can allow the gas to fully enter the combustion chamber, thereby avoiding gas leakage.

[0019] Through the above technical solutions, it can be seen that compared with the prior art, the present invention discloses a combustion chamber of a parking heater. Compared with the prior art, the present invention realizes stratified combustion by setting a primary combustion chamber and a secondary combustion chamber. The setting of the air inlet hole 1 and the air inlet hole 2 ensures sufficient air supply in the primary combustion chamber and the secondary combustion chamber, which can improve the stability of combustion, prevent the occurrence of deflagration, improve the utilization rate of gas, and ensure the full combustion of gas, thereby reducing the emission concentration of CO, ensuring that the emission concentration of CO meets environmental protection requirements, and further protecting the environment and user health; the setting of the swirl-type air inlet hole 1 can guide air to enter the primary combustion chamber in a vortex shape, so that the air and gas are more fully mixed in the combustion chamber, which helps the gas to burn more completely, thereby improving combustion efficiency; and the swirl-type air intake can form a stable air flow field, reduce airflow disturbances and vortex dead zones in the combustion chamber, make the flame propagation more uniform and stable, and improve the stability of the combustion process; it also helps to distribute the heat generated by combustion more evenly in the combustion chamber, reducing local overheating or uneven temperature. This helps extend the life of the combustion chamber and improves the thermal efficiency of the entire heating system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 This is a cross-sectional view of a combustion chamber of a parking heater according to the present invention.

[0022] Figure 2 This is an axial view of a combustion chamber of a parking heater according to the present invention.

[0023] Figure 3 This is a top view of a combustion chamber of a parking heater according to the present invention.

[0024] Among them, 1 is the shell; 11 is the heat output opening; 12 is the end plate; 121 is the air inlet; 13 is the air inlet hole 1; 14 is the air inlet hole 2; 15 is the gas inlet hole;

[0025] 2 is a mesh cylinder; 21 is a primary combustion chamber; 22 is a secondary combustion chamber;

[0026] 3 is the sealing plate; 4 is the arc-shaped air guide plate; 5 is the cover plate; 6 is the gas supply pipe. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See attached Figure 1-3 The present invention discloses a combustion chamber of a parking heater, comprising:

[0029] The shell 1 has a heat output opening 11 at one end thereof;

[0030] The mesh tube 2 has a primary combustion chamber 21 inside it. The mesh tube 2 is coaxially arranged inside the shell 1 and a secondary combustion chamber 22 is formed between its outer wall and the inner wall of the shell 1 and is connected. One end of the mesh tube 2 is fixed to the end plate 12 at the other end of the shell 1, and the other end is closed by a sealing plate 3. The end plate 12 is provided with an air inlet hole 13 and a gas inlet hole 15 connected to the primary combustion chamber 21 and an air inlet hole 2 14 connected to the secondary combustion chamber 22.

[0031] Specifically, the shell 1 and the net tube 2 are both cylindrical structures. The shell 1 is made of 310S material, and the net tube 2 is made of iron-chromium-aluminum material.

[0032] The mesh number of the net tube 2 is 60 meshes / square millimeter. The thickness of the tube wall of the net tube 2 is 2-3mm.

[0033] The gas supply pipe 6 is also included, and the gas supply pipe 6 is connected to the gas inlet hole 15. The gas supply pipe 6 is made of 310S material.

[0034] In some specific implementation examples, an air inlet hole 121 is opened at a position of the end plate 12 corresponding to the primary combustion chamber 21, and a plurality of arc-shaped air guide blades 4 are fixed vertically and spaced apart in the circumferential direction corresponding to the air inlet hole 121 on the outside of the end plate 12, and an air inlet hole 13 with a swirl-type air inlet structure is formed between two adjacent arc-shaped air guide blades 4; a cover plate 5 is fixed at the end of the plurality of arc-shaped air guide blades 4 corresponding to the end away from the end plate 12, and a gas inlet hole 15 is opened on the cover plate 5.

[0035] The CO gas concentrations exhausted from the existing combustion chamber and the CO gas concentrations exhausted from the combustion chamber of this embodiment were tested, and the test results are shown in Table 1.

[0036] Table 1

[0037] Exhaust CO gas concentration Existing combustion chamber 600-800PPM The combustion chamber of this embodiment 100-200PPM

[0038] As can be seen from Table 1, the CO gas concentration discharged by the combustion chamber of this embodiment is significantly lower than that of the existing combustion chamber, and the CO gas concentration discharged by this embodiment meets environmental protection requirements.

[0039] The combustion chamber of the parking heater designed according to the present invention achieves stratified combustion through the arrangement of a primary combustion chamber and a secondary combustion chamber. The arrangement of the first and second air inlet holes ensures sufficient air supply in the primary and secondary combustion chambers, thereby improving combustion stability, preventing deflagration, increasing gas utilization, and ensuring full combustion of the gas, thereby reducing CO emission concentrations and ensuring that CO emission concentrations meet environmental protection requirements, further protecting the environment and user health. The arrangement of the first swirl-type air inlet hole guides air into the primary combustion chamber in a swirl shape, allowing air and gas to mix more thoroughly within the combustion chamber, promoting more complete combustion of the gas and improving combustion efficiency. The swirl-type air intake creates a stable air flow field, reducing airflow disturbances and vortex dead zones within the combustion chamber, making flame propagation more uniform and stable, and improving the stability of the combustion process. It also helps to more evenly distribute the heat generated by combustion within the combustion chamber, reducing local overheating or temperature unevenness. This helps to extend the service life of the combustion chamber and improve the thermal efficiency of the entire heating system.

[0040] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0041] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combustion chamber of a parking heater, characterized in that: include: A shell (1), wherein one end of the shell (1) is provided with a heat output opening (11); A mesh cylinder (2), wherein the interior of the mesh cylinder (2) is a primary combustion chamber (21), the mesh cylinder (2) is coaxially arranged inside the shell (1), and a secondary combustion chamber (22) is formed between the outer wall of the mesh cylinder and the inner wall of the shell (1) and is in communication with each other; one end of the mesh cylinder (2) is fixed to an end plate (12) at the other end of the shell (1), and the other end is closed by a sealing plate (3); an air inlet hole (13) and a gas inlet hole (15) in communication with the primary combustion chamber (21) and an air inlet hole (14) in communication with the secondary combustion chamber (22) are provided on the end plate (12).

2. The combustion chamber of a parking heater according to claim 1, characterized in that: The mesh number of the mesh cylinder (2) is 60 meshes / square millimeter.

3. The combustion chamber of a parking heater according to claim 1, characterized in that: The thickness of the wall of the net cylinder (2) is 2-3 mm.

4. The combustion chamber of a parking heater according to claim 1, characterized in that: An air inlet hole (121) is provided on the end plate (12) at a position corresponding to the primary combustion chamber (21); a plurality of arc-shaped air guide blades (4) are fixed vertically and spaced apart in a circumferential direction corresponding to the air inlet hole (121) on the outer side of the end plate (12); an air inlet hole (13) with a swirl-type air inlet structure is formed between two adjacent arc-shaped air guide blades (4); a cover plate (5) is fixed on one end of the plurality of arc-shaped air guide blades (4) corresponding to a position away from the end plate (12); and the gas inlet hole (15) is provided on the cover plate (5).

5. The combustion chamber of a parking heater according to claim 1, characterized in that: It also includes a gas supply pipe (6), and the gas supply pipe (6) is connected to the gas inlet hole (15).

6. The combustion chamber of a parking heater according to claim 1, characterized in that: The shell (1) and the net cylinder (2) are both arranged in a cylindrical structure.

7. The combustion chamber of a parking heater according to claim 1, characterized in that: The mesh cylinder (2) is made of iron-chromium-aluminum material.

8. The combustion chamber of a parking heater according to claim 5, characterized in that: The gas supply pipe (6) and the shell (1) are both made of 310S material.

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