Fuel heater

Abstract

The present invention discloses a fuel air heater, comprising: a shell, one end of which is formed with an air inlet, and the other end of the shell is formed with an air outlet; a combustion chamber, which is arranged in the shell and has an air inlet and an air outlet; a fuel supply mechanism, which is used to supply fuel into the combustion chamber; an electric igniter, which extends to the combustion chamber and uses electric energy to ignite the fuel so that the fuel burns and releases heat; a battery, which is used to power the igniter; a radiator, which is arranged outside the combustion chamber and is used to dissipate heat into the shell, air enters through the air inlet of the shell to exchange heat with the radiator and is discharged from the air outlet of the shell to form warm air; a temperature difference power generation mechanism, which exchanges heat with the exhaust gas discharged from the exhaust port of the combustion chamber to obtain electric energy for charging the battery.

Description

Technical Field

[0001] The invention relates to a fuel-fired air heater. Background Art

[0002] Usually, fuel heaters are mainly used in temporary living or working spaces. They need power supply to support fuel ignition and fan operation. They cannot work in places without power supply. The structure of fuel heaters consists of a casing, a combustion chamber, a radiator, a controller, a blower, a chimney and a hot air outlet. The burner head inputs flames into the combustion chamber. The smoke generated by the combustion chamber is directly discharged through a straight chimney. The smoke carries a lot of heat, and the blower can only blow a small part of the hot air out of the hot air outlet. The thermal energy utilization rate is very low, and the general thermal efficiency is only about 60%. Summary of the invention

[0003] In view of the above technical problems existing in the prior art, an embodiment of the present invention provides a fuel heater.

[0004] In order to solve the above technical problems, the technical solution adopted in the embodiments of the present invention is:

[0005] A fuel heater, comprising:

[0006] A shell having an air inlet formed at one end and an air outlet formed at the other end;

[0007] a combustion chamber disposed in the housing and having an air inlet and an exhaust port;

[0008] A fuel supply mechanism, which is used to supply fuel into the combustion chamber;

[0009] An electric igniter extending toward the combustion chamber for igniting the fuel with the aid of electrical energy to cause the fuel to burn and release heat;

[0010] A battery for supplying power to the igniter;

[0011] A radiator is disposed outside the combustion chamber to dissipate heat into the shell, air enters through an air inlet of the shell to exchange heat with the radiator and is discharged from an air outlet of the shell to form warm air;

[0012] A temperature difference power generation mechanism exchanges heat with the exhaust gas discharged from the exhaust port of the combustion chamber to obtain electrical energy for charging the battery.

[0013] Preferably, the thermoelectric power generation mechanism comprises a heat collecting box and a thermoelectric power generation component arranged outside the heat collecting box; wherein:

[0014] The exhaust gas discharged from the exhaust port of the combustion chamber enters the heat collecting box and is then discharged from the heat collecting box to be used for heat exchange with the temperature difference power generation component to enable the temperature difference power generation component to generate electricity.

[0015] Preferably, a heat dissipation water box is disposed outside the temperature difference power generation component so that the end close to the heat dissipation water box forms a low-temperature end.

[0016] Preferably, the thermal collector box has staggered spoilers.

[0017] Preferably, a heat sink is installed on one side of the heat collecting box away from the exhaust port of the combustion chamber, the heat sink is connected to the heat sink box and a water pump is used to make the heat exchange medium flow between the heat sink and the heat sink box; wherein:

[0018] A cooling fan is installed on the cooling water row to discharge warm air.

[0019] Preferably, the fuel supply mechanism includes a fuel tank, an oil pipe for connecting the combustion chamber and the fuel tank, and an oil pump for supplying the fuel in the fuel tank into the combustion chamber.

[0020] Preferably, an air blower fan is provided at the air inlet of the shell, and the air blower fan is used to make cold air pass through the shell at a certain flow rate and flow rate.

[0021] Preferably, the device further includes a controller that manages at least the battery to control the electric igniter and the blower fan.

[0022] Preferably, the radiator is a plurality of radiating fins circumferentially arranged outside the combustion chamber.

[0023] Preferably, the electric igniter is a ceramic ignition plug.

[0024] Compared with the prior art, the fuel heater disclosed in the present invention has the following beneficial effects:

[0025] 1. The heat of the exhaust gas discharged from the combustion chamber is obtained by the temperature difference power generation mechanism, and then the heat energy is converted into electrical energy for charging the battery, which enables the fuel heater to generate and supply electricity by itself.

[0026] 2. Convert the heat energy in the exhaust gas into electrical energy and hot air, so that the heat energy after fuel combustion can be fully utilized, and the utilization rate of heat energy can reach 90%.

[0027] This summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the embodiments of the invention. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0029] Figure 1 A schematic structural diagram of a fuel-fired air heater provided in an embodiment of the present invention.

[0030] Figure 2 A schematic diagram of the internal structure of a heat collecting box in a fuel-fired air heater provided in an embodiment of the present invention.

[0031] Figure 3 A front view of a temperature difference power generation mechanism in a fuel-fired air heater provided in an embodiment of the present invention.

[0032] Figure 4 The left side view of the temperature difference power generation mechanism in the fuel heater provided in the embodiment of the present invention.

[0033] Figure 5 A front view of a heat dissipation water row in a fuel-fired air heater provided in an embodiment of the present invention.

[0034] Figure 6 The left side view of the heat dissipation water row in the fuel heater provided in the embodiment of the present invention.

[0035] Reference numerals:

[0036] 10-housing; 11-air inlet; 111-blower fan; 12-air outlet; 20-combustion chamber; 21-air inlet; 22-exhaust outlet; 30-radiator; 40-electric igniter; 50-control switch; 60-collecting box; 61-air inlet; 62-exhaust outlet; 63-spoiler; 71-cooling water box; 72-cooling water drain; 73-cooling fan; 80-temperature difference power generation component; 91-controller; 92-fuel tank; 93-oil pipe; 94-oil pump. DETAILED DESCRIPTION

[0037] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0038] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and well-known components are omitted.

[0039] like Figures 1 to 6 As shown, an embodiment of the present invention discloses a fuel air heater, which includes: a shell 10, a combustion chamber 20, a fuel supply mechanism, an electric igniter 40, a radiator 30, a temperature difference power generation mechanism, a battery, a blower fan 111, a cooling fan 73, and a power control switch 50.

[0040] The housing 10 is substantially sleeve-shaped. One end of the housing 10 is an air inlet 11 , and the other end of the housing 10 is an air outlet 12 . A blower fan 111 is installed at the air outlet 11 of the housing 10 .

[0041] The combustion chamber 20 is located in the housing 10 , and an air inlet 21 is formed at one end of the housing 10 on the same side as the air inlet 11 , and an exhaust port 22 is formed by extending radially from the housing 10 .

[0042] The electric igniter 40 can be a ceramic ignition plug, which extends into the combustion chamber 20. The electric igniter 40 is controlled by a controller 91, and the controller 91 is supplied with electrical energy by a battery. The fuel supply mechanism includes a fuel tank 92, an oil pipe 93 connecting the fuel tank 92 and the combustion chamber 20, and an oil pump 94 arranged on the oil pipe 93. The oil pump 94 allows the fuel in the fuel tank 92 to be continuously supplied to the combustion chamber 20 through the oil pipe 93. The fuel is mixed with the air entering the combustion chamber 20 through the air inlet 21 of the combustion chamber 20, and the electric igniter 40 ignites, causing the fuel in the combustion chamber 20 to burn and release heat.

[0043] The radiator 30 is disposed outside the combustion chamber 20. Specifically, the radiator 30 is a plurality of cooling fins arranged circumferentially outside the combustion chamber 20. The cooling fins may be made of copper material. The fuel burns in the combustion chamber 20 to release heat, and the cooling fins are used to conduct the heat to the flow channel between the shell 10 and the combustion chamber 20.

[0044] The blower fan 111 is controlled by the controller 91 to operate, so that air enters the shell 10 through the air inlet 11 of the shell 10 at a certain flow rate and flow rate to exchange heat with the radiator 30. The air after heat exchange forms a hot air flow and is discharged from the air outlet 12 of the shell 10 to form warm air for heating.

[0045] The thermoelectric power generation mechanism includes: a heat collecting box 60, a thermoelectric power generation component 80 and a heat dissipation water box 71; the heat collecting box 60 has an air inlet 61 and an exhaust port 62 that are far apart from each other, the air inlet 61 of the heat collecting box 60 is connected to the exhaust port 62 of the combustion chamber 20, and the heat collecting box 60 has spoilers 63 arranged in an alternating manner.

[0046] Thermoelectric components 80 are provided on both sides of the heat collecting box 60, so that the end of the thermoelectric components 80 in contact with the water collecting box forms a hot end; a heat dissipation water box 71 is provided outside the thermoelectric components 80 on each side, and the heat dissipation water box 71 is connected to the heat dissipation water row 72. A water pump (not shown) is provided between the heat dissipation water box 71 and the heat dissipation water row 72, so that the heat exchange medium can flow between the heat dissipation water box 71 and the heat dissipation water row 72. A heat dissipation fan 73 is provided on the heat dissipation water row 72, and the heat dissipation fan 73 is used to exchange heat with the heat exchange medium and blow warm air outward.

[0047] The heat exchange medium continuously exchanges heat between the heat dissipation water box 71 and the heat dissipation water row 72, which makes the end of the thermoelectric power generation component 80 in contact with the heat dissipation water box 71 the cold end, so that the temperature difference between the hot end and the cold end of the thermoelectric power generation component 80 can reach 200°C, thereby enabling the thermoelectric power generation component 80 to generate electricity and supply electrical energy to the battery.

[0048] The advantages of the fuel heater provided by the present invention are:

[0049] 1. The heat of the exhaust gas discharged from the combustion chamber 20 is obtained by a temperature difference power generation mechanism, and then the heat energy is converted into electrical energy for charging the battery, which enables the fuel heater to generate and supply electricity by itself.

[0050] 2. Convert the heat energy in the exhaust gas into electrical energy and hot air, so that the heat energy after fuel combustion can be fully utilized, and the utilization rate of heat energy can reach 90%.

[0051] In addition, although exemplary embodiments have been described in the present invention, the scope includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language adopted in the claims, and are not limited to the examples described in this specification or during the implementation of this application, and their examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0052] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. For example, a person of ordinary skill in the art can use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the present invention. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the present invention may be less than all the features of a specific disclosed embodiment. Thus, the following claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently used as a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the present invention should be determined with reference to the attached claims and the full scope of equivalent forms granted by these claims.

[0053] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A fuel heater, characterized in that: include: A shell having an air inlet formed at one end and an air outlet formed at the other end; a combustion chamber disposed in the housing and having an air inlet and an exhaust port; A fuel supply mechanism, which is used to supply fuel into the combustion chamber; An electric igniter extending toward the combustion chamber for igniting the fuel with the aid of electrical energy to cause the fuel to burn and release heat; A battery for supplying power to the igniter; A radiator is disposed outside the combustion chamber to dissipate heat into the shell, air enters through an air inlet of the shell to exchange heat with the radiator and is discharged from an air outlet of the shell to form warm air; a temperature difference power generation mechanism, which exchanges heat with the exhaust gas discharged from the exhaust port of the combustion chamber to obtain electrical energy for charging the storage battery; The thermoelectric power generation mechanism includes a heat collection box and a thermoelectric power generation component arranged outside the heat collection box; wherein: the exhaust gas discharged from the exhaust port of the combustion chamber enters the heat collection box and then is discharged from the heat collection box to be used for heat exchange with the thermoelectric power generation component to enable the thermoelectric power generation component to generate electricity; A heat dissipation water box is arranged outside the temperature difference power generation component so that the end close to the heat dissipation water box forms a low temperature end; A heat dissipation water drain is installed on one side of the heat collecting box away from the exhaust port of the combustion chamber. The heat dissipation water drain is connected to the heat dissipation water box and a water pump is used to make the heat exchange medium flow between the heat dissipation water drain and the heat dissipation water box; wherein: a heat dissipation fan is installed on the heat dissipation water drain to discharge warm air.

2. The fuel heater according to claim 1, characterized in that: The heat collecting box is provided with staggered spoilers.

3. The fuel-fired air heater according to claim 1, characterized in that: The fuel supply mechanism comprises a fuel tank, an oil pipe for connecting the combustion chamber and the fuel tank, and an oil pump for supplying the fuel in the fuel tank into the combustion chamber.

4. The fuel heater according to claim 1, characterized in that: An air blower fan is arranged at the air inlet of the shell, and the air blower fan is used to make cold air pass through the shell at a certain flow rate and flow rate.

5. The fuel heater according to claim 4, characterized in that: A controller is also included, which manages at least the battery to control the electric igniter and the blower fan.

6. The fuel-fired air heater according to claim 1, characterized in that: The radiator is a plurality of radiating fins circumferentially arranged outside the combustion chamber.

7. The fuel-fired air heater according to claim 1, characterized in that: The electric igniter is a ceramic ignition plug.

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