Parking heater

Abstract

This utility model provides a parking heater, relating to the field of automotive heater technology. The parking heater includes a shell, a heat exchanger, a combustion element, a combustion air pipeline, and a fuel pipeline. The shell has openings at both ends. The heat exchanger has an inner cavity within the shell, and a heat exchange channel is formed between the outer wall of the heat exchanger and the shell. The heat exchange channel communicates with the openings. The heat exchanger has a heat exchange chamber inside, which communicates with the combustion chamber of the combustion element. The intake pipe of the combustion air pipeline communicates with the combustion chamber, and the exhaust pipe communicates with the heat exchange chamber. The fuel pipeline communicates with the combustion chamber, and the fuel inlet section is located within the heat exchange channel. After passing through the fuel inlet section, the fuel enters the combustion chamber and mixes with air for combustion. The high-temperature gas generated by combustion enters the heat exchange chamber, thereby heating the heat exchanger. The heat exchanger transfers heat to the heat exchange channel, and the heat exchange channel transfers heat to the fuel inlet section. Subsequently, the fuel is preheated by the fuel inlet section before combustion, resulting in complete fuel combustion, improved combustion efficiency, and reduced emissions of harmful substances such as carbon monoxide.

Description

Technical Field

[0001] This utility model relates to the field of automotive heater technology, and in particular to a parking heater. Background Technology

[0002] A parking heater is an independent vehicle heating device separate from the car engine, used to improve vehicle performance and driving comfort in low-temperature environments, and is also frequently used for heating during outdoor activities. Specifically, in existing parking heaters, fuel supplied from the fuel tank is delivered to the combustion chamber through its fuel lines. Simultaneously, an induced draft device draws outside air into the combustion chamber to participate in combustion. A spark plug ignites the air-fuel mixture, producing high-temperature flue gas. The outer wall of the combustion chamber exchanges heat with the air flowing through the heat exchange chamber. The heated air is then delivered to the driver's cab or directly to the user for heating via hot air ducts. The flue gas produced in the combustion chamber is directly discharged into the atmosphere. However, the above technical solution has the following drawbacks: In low-temperature environments, the fuel temperature in the fuel tank is low, resulting in excessively low fuel temperature entering the combustion chamber through the fuel lines, easily leading to incomplete combustion. Furthermore, due to low combustion efficiency, the exhaust gases contain high concentrations of harmful substances such as carbon monoxide, exacerbating environmental pollution. Therefore, there is an urgent need to develop a parking heater that can improve combustion completeness and reduce harmful gas emissions. Utility Model Content

[0003] The purpose of this invention is to provide a parking heater that can improve combustion efficiency and reduce harmful gas emissions, thereby solving the technical problems existing in the prior art.

[0004] To achieve the above objectives, the technical solution of this utility model embodiment is as follows: A parking heater, comprising: The shell has openings at its opposite ends; A heat exchanger is disposed inside the housing. The heat exchanger has a heat exchange cavity inside. A heat exchange channel is formed between the outer wall of the heat exchanger and the inner wall of the housing. The heat exchange channel communicates with the opening of the housing. A combustion element, wherein the combustion element has a combustion chamber inside, and the combustion chamber is connected to the heat exchange chamber; Combustion air piping includes an intake pipe and an exhaust pipe, wherein the intake pipe is connected to the combustion chamber and the exhaust pipe is connected to the heat exchange chamber; A fuel line is connected to the combustion chamber, and the fuel line includes an inlet section along its extension direction, the inlet section being located within the heat exchange channel.

[0005] Furthermore, The heat exchanger is provided with a heat exchange plate group, which includes multiple heat exchange plates, and the multiple heat exchange plates are arranged at intervals and in parallel. The oil inlet pipe section includes a first pipe section that abuts against the heat exchanger fin assembly.

[0006] Furthermore, The heat exchanger assembly is provided with an installation groove for the first pipe section to be embedded and installed. The mounting groove extends through multiple heat exchange plates, and the length direction of the mounting groove (221) is set at an angle to the length direction of the heat exchange plate (220), or / and the mounting groove is formed between two of the heat exchange plates.

[0007] Furthermore, The oil inlet pipe section also includes a second pipe section corresponding to the heat exchange cavity, and the second pipe section is located inside the heat exchange cavity.

[0008] Furthermore, A secondary combustion chamber is provided between the combustion chamber and the heat exchange chamber. One end of the secondary combustion chamber is connected to the combustion chamber, and the other end extends into the heat exchange chamber. The second pipe section is wound around the outer wall of the secondary combustion cylinder.

[0009] Furthermore, The outer wall of the secondary combustion chamber also has a spiral groove for the second pipe section to be wound and installed.

[0010] Furthermore, The parking heater is equipped with an air intake component; The air intake component is provided with an air intake chamber. One end of the air intake chamber is connected to the combustion chamber, and the other end is connected to the air intake pipe. A first fan is also provided in the air intake chamber. The first fan is used to introduce air from the air intake pipe into the air intake chamber and then into the combustion chamber.

[0011] Furthermore, The combustion chamber is provided with a flow equalization pipe, one end of which is a closed end and the other opposite end is an open end. The open end is connected to the intake pipe, and the closed end has a plurality of flow equalization holes evenly arranged along its circumference.

[0012] Furthermore, The heat exchange cavity has one or more heat exchange protrusions inside.

[0013] Furthermore, A second fan is also provided inside the housing. The second fan is used to introduce air into the heat exchange channel from one opening of the housing and to exit from the other opening of the housing.

[0014] Compared with the prior art, the embodiments of this utility model have at least the following technical effects: The parking heater of this utility model embodiment includes a shell, a heat exchanger, a combustion element, a combustion air pipeline, and a fuel pipeline. The shell has openings at both ends. The heat exchanger has an inner cavity in the shell, and a heat exchange channel is formed between the outer wall of the heat exchanger and the shell. The heat exchange channel is connected to the openings. The heat exchanger has a heat exchange chamber inside, which is connected to the combustion chamber of the combustion element. The air inlet pipe of the combustion air pipeline is connected to the combustion chamber, and the exhaust pipe is connected to the heat exchange chamber. The fuel pipeline is connected to the combustion chamber. The fuel inlet section of the fuel pipeline is located in the heat exchange channel. After the fuel enters the combustion chamber through the fuel inlet section, it mixes with air and burns. The high-temperature gas generated enters the heat exchange chamber and then heats the heat exchanger. The heat exchanger transfers heat to the heat exchange channel, and the heat exchange channel transfers heat to the fuel inlet section. Subsequently, the fuel is preheated by the fuel inlet section before combustion. The fuel can burn more completely in the combustion chamber, improving fuel combustion efficiency and reducing the emission of harmful substances such as carbon monoxide. Attached Figure Description

[0015] Figure 1 This is a perspective view of a parking heater in one embodiment of the present invention; Figure 2 This is a cross-sectional schematic diagram of a parking heater in one embodiment of the present invention; Figure 3 This is a three-dimensional schematic diagram of the parking heater with its housing removed in one embodiment of the present invention; Figure 4 This is a perspective view of the installation positions of the first pipe segment and the second pipe segment inside the parking heater in one embodiment of the present invention.

[0016] Explanation of icon numbers: 10. Shell; 11. Opening; 12. Heat exchange channel; 13. Second fan; 20. Heat exchanger element; 21. Heat exchange chamber; 210. Heat exchange protrusion; 22. Heat exchange fin assembly; 220. Heat exchange fin; 221. Mounting slot; 30. Combustion component; 31. Combustion chamber; 40. Combustion air piping; 41. Intake pipe; 42. Exhaust pipe; 50. Inlet pipe section; 51. First pipe section; 52. Second pipe section; 60. Secondary combustion chamber; 70. Air intake component; 71. Air intake chamber; 72. First fan; 80. Flow equalization tube; 81. Closed end; 810. Flow equalization orifice; 82. Open end. Detailed Implementation

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in this specification of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0018] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0019] Please see Figures 1 to 4 As shown, in one embodiment of this utility model, the parking heater includes a housing 10, a heat exchanger 20, a combustion element 30, a combustion air pipeline 40, and a fuel pipeline. The housing 10 has openings 11 at opposite ends, serving as an air inlet and an air outlet, respectively. The heat exchanger 20 is disposed within the housing 10, and its interior has a heat exchange chamber 21. A heat exchange channel 12 is formed between the outer wall of the heat exchanger 20 and the inner wall of the housing 10. The heat exchange channel 12 and the housing 10... The opening 11 is connected, the combustion element 30 has a combustion chamber 31 inside, and the combustion chamber 31 is connected to the heat exchange chamber 21. The combustion air pipeline 40 includes an intake pipe 41 and an exhaust pipe 42. The intake pipe 41 is connected to the combustion chamber 31, and the exhaust pipe 42 is connected to the heat exchange chamber 21. The fuel pipeline is connected to the combustion chamber 31. The fuel pipeline includes an inlet pipe section 50 along its extension direction. The inlet pipe section 50 is located in the heat exchange channel 12.

[0020] In the aforementioned scheme, the fuel line supplies fuel to the combustion chamber 31, and the intake pipe 41 supplies air to the combustion chamber 31. After ignition by the spark plug and other ignition components, the fuel burns in the combustion chamber 31 to produce high-temperature gas. The combustion chamber 31 is connected to the heat exchange chamber 21. The high-temperature gas enters the heat exchange chamber 21 and transfers heat to the heat exchanger 20, and is discharged from the exhaust pipe 42. Openings 11 are provided at both ends of the housing 10 for air intake and exhaust. A heat exchange channel 12 is formed between the outer wall of the heat exchanger 20 and the inner wall of the housing 10. The two openings 11 are connected to the two ends of the heat exchange channel 12 respectively. 1. Air flowing into the housing 10 exchanges heat with heat exchanger 20 in heat exchange channel 12. The heated air is then delivered to the cab or the user's desired heating space through another opening 11. The fuel line includes fuel inlet section 50, which is located in heat exchange channel 12. Heat exchanger 20 transfers heat to heat exchange channel 12, which in turn transfers heat to fuel inlet section 50. Before entering combustion chamber 31, the fuel is preheated in fuel inlet section 50, allowing for more complete combustion in the combustion chamber, improving fuel combustion efficiency, and reducing emissions of harmful substances such as carbon monoxide.

[0021] Please see Figure 3 As shown, in one embodiment of this utility model, the heat exchanger 20 is provided with a heat exchange fin assembly 22, which includes multiple heat exchange fins 220 arranged at intervals and in parallel. The oil inlet pipe section 50 includes a first pipe section 51 that abuts against the heat exchange fin assembly 22. By providing the heat exchange fin assembly 22 protruding from the outer wall of the heat exchanger 20, more heat is transferred to the heat exchange channel 12, increasing the air temperature within the heat exchange channel 12. Furthermore, the first pipe section 51, in contact with the heat exchange fin assembly 22, receives more heat, preheating the fuel flowing through it. More specifically, please refer to... Figure 3As shown, the heat exchanger assembly 22 is provided with an installation groove 221 for embedding the first pipe section 51. The installation groove 221 extends through multiple heat exchanger plates 220. The first pipe section 51 is embedded in the installation groove 221, which increases the heat exchange area between the first pipe section 51 and the heat exchanger assembly 22. Consequently, the first pipe section 51 can obtain more heat, thereby more effectively preheating the fuel flowing through it. In some embodiments, the length direction of the installation groove 221 is set at an angle to the length direction of the heat exchanger plate 220. In this embodiment, the length direction of the installation groove 221 is perpendicular to the length direction of the heat exchanger plate 220, that is, they are at a 90° angle. In some other embodiments, the angle between the length direction of the mounting groove 221 and the length direction of the heat exchange plate 220 can be set to 30 degrees, 60 degrees, or other required angles, depending on the specific situation. In other embodiments, the mounting groove 221 is formed between two of the heat exchange plates 220, and the first pipe section 51 is sandwiched and abutted by the two heat exchange plates 220, which can increase the heat exchange area between the first pipe section 51 and the heat exchange plate group 22, and also improve the heat exchange efficiency between the heat exchange plate group 22 and the first pipe section 51. The first pipe section 51 can also obtain more heat, and the fuel flowing through the first pipe section 51 can be preheated more effectively.

[0022] Please see Figure 2 as well as Figure 4 As shown, in one embodiment of this utility model, the oil inlet pipe section 50 further includes a second pipe section 52 corresponding to the heat exchange chamber 21. The second pipe section 52 is located inside the heat exchange chamber 21, and the heat exchange chamber 21 transfers heat to the second pipe section 52. After the second pipe section 52 is heated, the fuel flowing through the second pipe section 52 can be preheated. More specifically, please refer to... Figure 2 As shown, in one embodiment of this utility model, a secondary combustion chamber 60 is provided between the combustion chamber 31 and the heat exchange chamber 21. One end of the secondary combustion chamber 60 is connected to the combustion chamber 31, and the other end extends into the heat exchange chamber 21. The second pipe section 52 is wound around the outer wall of the secondary combustion chamber 60. In this embodiment, the secondary combustion chamber 60 serves as an extension space for combustion in the combustion chamber 31, allowing unburned fuel in the combustion chamber 31 to continue burning in the secondary combustion chamber 60, more fully converting the chemical energy of the fuel into thermal energy, further increasing the temperature of the high-temperature gas in the heat exchange chamber 21. The heat exchanger 20 can transfer more heat to the heat exchange channel 12, and thus transfer more heat to the inlet pipe section 50. Furthermore, the second pipe section 52 of the inlet pipe section 50 is wound around the outer wall of the secondary combustion chamber 60, increasing the heat exchange area between the second pipe section 52 and the secondary combustion chamber 60, allowing the second pipe section 52 to also receive more heat. Further details can be found in the following section. Figure 2As shown, in one embodiment of this utility model, the outer wall of the secondary combustion cylinder 60 is also recessed with a spiral groove for the second pipe section 52 to be wound and installed, which can increase the heat exchange area between the second pipe section 52 and the secondary combustion cylinder 60, so that the second pipe section 52 can obtain more heat and further improve the heating efficiency of the second pipe section 52.

[0023] Please see Figure 2 As shown, in one embodiment of this utility model, the parking heater is provided with an air intake component 70, wherein the air intake component 70 is provided with an air intake chamber 71, one end of the air intake chamber 71 is connected to the combustion chamber 31, and the other end is connected to the air intake pipe 41. A first fan 72 is also provided in the air intake chamber 71. The first fan 72 introduces air from the air intake pipe 41 into the air intake chamber 71, and then flows into the combustion chamber 31. By providing a first fan 72 in the air intake chamber 71 of the air intake component 70, air is quickly introduced into the combustion chamber 31 to mix and burn with fuel, resulting in more complete combustion and improved combustion efficiency.

[0024] Please see Figure 2 As shown, in one embodiment of this utility model, a flow equalization pipe 80 is provided in the combustion chamber 31, one end of which is a closed end 81, and the other opposite end is an open end 82. The open end 82 is connected to the intake pipe 41, and the closed end 81 has a plurality of flow equalization holes 810 evenly arranged along its circumference. By providing a flow equalization pipe 80 in the combustion chamber 31, the air and fuel passing through the flow equalization holes 810 are fully mixed, resulting in complete combustion and improved combustion efficiency.

[0025] Please see Figure 2 As shown, in one embodiment of this utility model, multiple heat exchange protrusions 210 are provided inside the heat exchange chamber 21. In other embodiments, there may be only one heat exchange protrusion 210. With the heat exchange protrusion 210 protruding inside the heat exchange chamber 21, after the high-temperature exhaust gas enters the heat exchange chamber 21, more heat can be transferred to the heat exchange element 20 through the heat exchange protrusion 210, thereby increasing the air temperature in the heat exchange channel 12. The oil inlet pipe section 50 placed in the heat exchange channel 12 can obtain more heat, improving the heating efficiency of fuel flowing through the oil inlet pipe section 50, and making combustion more complete.

[0026] Please see Figure 2 As shown, in one embodiment of this utility model, a second fan 13 is further provided inside the housing 10. The second fan introduces air into the heat exchange channel 12 through one opening 11 of the housing 10 and exits from the other opening 11 of the housing 10. In this embodiment, a second fan 13 is provided, which introduces air into the heat exchange channel 12 through one opening 11 of the housing 10, where it exchanges heat with the heat exchange element 20. The heated air is then delivered to the cab through the other opening 11.

[0027] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model shall be determined by the protection scope of the claims.

Claims

1. A parking heater, characterized in that, include: The shell (10) has openings (11) at its opposite ends; A heat exchanger (20) is disposed inside the housing (10). The heat exchanger (20) has a heat exchange cavity (21) inside. A heat exchange channel (12) is formed between the outer wall of the heat exchanger (20) and the inner wall of the housing (10). The heat exchange channel (12) is connected to the opening (11) of the housing (10). The combustion element (30) has a combustion chamber (31) inside, and the combustion chamber (31) is connected to the heat exchange chamber (21); Combustion air pipeline (40) includes an intake pipe (41) and an exhaust pipe (42), wherein the intake pipe (41) is connected to the combustion chamber (31) and the exhaust pipe (42) is connected to the heat exchange chamber (21); The fuel line is connected to the combustion chamber (31), and the fuel line includes an inlet section (50) along its extension direction, which is located in the heat exchange channel (12).

2. The parking heater according to claim 1, characterized in that, The heat exchanger (20) is provided with a heat exchange plate group (22) outside, the heat exchange plate group (22) includes multiple heat exchange plates (220), and the multiple heat exchange plates (220) are spaced apart and arranged in parallel; The oil inlet pipe section (50) includes a first pipe section (51) that abuts against the heat exchanger assembly (22).

3. The parking heater according to claim 2, characterized in that, The heat exchanger assembly (22) is provided with an installation groove (221) for the first pipe section (51) to be embedded and installed; The mounting groove (221) passes through multiple heat exchange plates (220) simultaneously. The length direction of the mounting groove (221) is set at an angle to the length direction of the heat exchange plate (220), or / and the mounting groove (221) is formed between two of the heat exchange plates (220).

4. The parking heater according to claim 1, characterized in that, The oil inlet pipe section (50) also includes a second pipe section (52) corresponding to the heat exchange chamber (21), and the second pipe section (52) is located inside the heat exchange chamber (21).

5. The parking heater according to claim 4, characterized in that, A secondary combustion chamber (60) is provided between the combustion chamber (31) and the heat exchange chamber (21). One end of the secondary combustion chamber (60) is connected to the combustion chamber (31), and the other end extends into the heat exchange chamber (21). The second pipe section (52) is wrapped around the outer wall of the secondary combustion cylinder (60).

6. The parking heater according to claim 5, characterized in that, The outer wall of the secondary combustion cylinder (60) also has a spiral groove for the second pipe section (52) to be wound and installed.

7. The parking heater according to claim 1, characterized in that, The parking heater is equipped with an air intake component (70); The air intake component (70) is provided with an air intake chamber (71), one end of which is connected to the combustion chamber (31) and the other end is connected to the air intake pipe (41). A first fan (72) is also provided in the air intake chamber (71), which is used to introduce air from the air intake pipe (41) into the air intake chamber (71) and then into the combustion chamber (31).

8. The parking heater according to claim 1, characterized in that, The combustion chamber (31) is provided with a flow equalization pipe (80), one end of which is a closed end (81) and the other opposite end is an open end (82). The open end (82) is connected to the air intake pipe (41), and the closed end (81) is evenly arranged with multiple flow equalization holes (810) along its circumference.

9. The parking heater according to claim 1, characterized in that, The heat exchange cavity (21) has one or more heat exchange protrusions (210) inside.

10. The parking heater according to claim 1, characterized in that, The housing (10) is also provided with a second fan (13), which is used to introduce air into the heat exchange channel (12) from one of the openings (11) of the housing (10) and out from the other opening (11) of the housing (10).

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