JP3320459B2 - Combustion equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion apparatus using petroleum as a fuel and used as, for example, a household cooking apparatus.

[0002]

2. Description of the Related Art In general, a combustion apparatus used for cooking at home or the like generally vaporizes fuel, burns the fuel with a burner head, and directly heats a pot or the like with a combustion flame.

Hereinafter, the combustion apparatus will be described with reference to FIG. As shown in FIG.
Is mounted on the side wall of the carburetor 1 so that the tip of the fuel supply pipe faces the inside of the carburetor 1 via the air passage 4 for vaporization. It is connected to the fuel pump 6. On the other hand, the vaporizing air passage 4 is communicated with the blower 7, and a part of the blower 7 is also communicated with the combustion air passage 8 provided around the burner head 3. The carburetor 1, the fuel pump 6, the blower 7 and the like are installed in a box-shaped case 9, the upper part of the case 9 is opened, and the burner head 3 is exposed upward. It is configured such that the virtues 10 are placed on the upper part of the case 9 around the burner head 3.

In this configuration, after air is sent to the vaporizing air passage 4 and the combustion air passage 8 by the blowing means 7 after the carburetor 1 is heated by an electric heater or the like, petroleum fuel is supplied by the fuel supply pipe 5. The mixture is supplied and vaporized in the vaporizer 1 to form a mixture, which is ejected from the flame opening 2. When the mixture is ignited, a flame 11 is formed around the burner head 3.

[0005]

However, in the structure of the conventional combustion apparatus, since the bottom of a pot or the like placed on the pit 10 is directly heated by the flame 11, the flame 11 that escapes along the periphery of the pot or the like is heated. However, there is a problem that heat is dissipated into the air and thermal efficiency is poor. In addition, a problem peculiar to petroleum fuel such as generation of an odor at the time of ignition, generation of an odor at the time of fire extinguishing, and generation of white smoke at the time of ignition cannot be solved, and it is not possible to improve the environmental conditions and poor image of the work of directly cooking with the flame 11. Had. If the adjustment of the air amount is shifted to the insufficient side, soot may adhere to the bottom of the pot or the like due to the occurrence of yellow fire, or the burner head 3 and the combustion air passage 8 may be opened to the upper part of the case 9. However, there is a problem in that the broth or the like adheres during cooking and it takes time to clean the dirt and the like.

The present invention has been made to solve the above problems, and has as its object to improve the efficiency of a combustion apparatus, improve environmental conditions, and simplify cleaning.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides fuel and combustion air supplied by supplying fuel and combustion air.
A combustion chamber is provided on the downstream side of the combustion section for burning, and the combustion chamber
A combustion gas passage is connected downstream via a reversing passage.
These are configured as closed passages, and the combustion gas passages are
A combustion gas outlet with the tip facing the outside is provided on the downstream side.
Insert the heat receiving part into the combustion gas passage and configure it integrally with this heat receiving part
The obtained top plate is exposed outside the apparatus.

[0008]

The combustion apparatus of the above construction does not directly heat a pot or the like with a flame, but transfers heat from the top plate heated by the combustion gas to the pot or the like by conduction or radiation. Therefore, the rate of heat escaping into the air is small, and the thermal efficiency can be improved. In addition, since the combustion gas outlet faces the outside, the combustion gas is not released into the room, and the environmental conditions are not deteriorated, so that a comfortable cooking operation can be performed. Further, since only the top plate is exposed outside the device, cleaning of garbage for cooking can be easily performed.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 12 denotes a combustion unit that atomizes or vaporizes liquid fuel and mixes it with combustion air to perform diffusion combustion or premix combustion. The combustion section 12 is disposed so as to eject and spray atomized particles or vaporized gas in a lateral direction, and a combustion chamber 13 whose inner wall is covered with a heat insulating material such as glass wool or ceramic is provided on the downstream side. A gas passage 15 continuous through a reversing passage 14 provided above the inner wall of the combustion chamber 13 facing the combustion portion 12.
Are formed above the combustion section 12 and in the horizontal direction.
A downstream side of the combustion gas passage 15 is communicated with a cylindrical combustion gas outlet 16, and a tip portion of the combustion gas outlet 16 penetrates an outer wall 17 of the building, and has a plurality of exhaust ports 1.
8 are provided. Then, from the combustion section 12 to the combustion chamber 1
3, reversing passage 14, combustion gas passage 15, combustion gas outlet 1
The communication path leading to 6 is formed as one closed pipe.

Between the combustion section 12 and the combustion gas passage 15 thereabove, a partition section 1 made of an air layer, a heat insulating material or the like.
9 is provided, and a control room 20 surrounded by an air layer, a heat insulating material, and the like is provided on the upstream side of the combustion section 12 below the partition section 19. A heat receiving portion 21 made of a plurality of plate-like bodies is inserted almost at the center of the upper portion of the combustion gas passage 15 up to the vicinity of the bottom of the combustion gas passage 15. A top plate 22 is provided. The heat receiving portion 21 and the top plate 22 are made of a heat-resistant material having good heat conductivity such as metal. The top plate 22 is placed on the upper part of the combustion gas passage 15 and is mounted via a packing, a sealing material, or the like so as not to leak the combustion gas. The upper end of the top plate 22 penetrates the upper part of a case 23 constituting the outer shell of the apparatus and is exposed.

On the other hand, a blowing means 24 comprising a blower is connected to the combustion section 12 through an air passage 25. An air supply passage 26 communicates with the intake side of the blower 24, and the air supply passage 26 is configured so as to be on the outer periphery of the combustion gas outlet 16 and not to block the exhaust port 18. Is provided through the outer wall 17. At the end of the air supply passage 26, a plurality of air inlets 27 open to the outside are provided.
Is provided. Further, a fuel supply means 28 including a fuel pump is connected to the combustion section 12 via a fuel pipe 29. The fuel supply means 28 is in communication with a combustion tank (not shown) via an oil feed pipe 30. The blowing unit 24, the fuel supply unit 28, and control components (not shown) are provided in the control room 20.
It is installed in. In the figure, 31 indicates a flame, and 32 indicates a combustion gas.

In the above configuration, the air blowing means 24 is operated, and the combustion air passes through the air inlet 27 and the air supply passage 26,
After the fuel is supplied into the combustion unit 12 through the air passage 25, fuel is supplied to the combustion unit 12 by the fuel supply unit 28 and ignited by an ignition device (not shown). It is formed. The combustion gas 32 of the flame 31 rises in the inversion passage 14 from the combustion chamber 13, flows into the combustion gas passage 15, and is discharged from the exhaust port 17 of the combustion gas outlet 16. At this time, the combustion gas 32 heats the heat receiving portion 21 while passing through the combustion gas passage 15, and the top plate 22 receives this heat,
Since the top plate 22 becomes hot, cooking can be performed by placing a pot or the like on the top plate 22. That is, the top plate 22 becomes a heating element, and when a pan or frying pan matching the shape of the upper end face is placed, heat is efficiently transmitted, and the heat is dispersed like a direct fire and does not escape into the surrounding air. This has the effect of improving thermal efficiency, improving fuel efficiency, and supplying an economical cooking device. Further, since the combustion section 12 to the exhaust port 18 are hermetically closed, the combustion gas 32 does not leak, so that the odor at the time of ignition and extinguishing, the white smoke at the time of ignition, etc. do not enter the room, and the working environment. Is maintained satisfactorily, and there is an effect that oily smell does not adhere to cooked items and comfortable cooking can be performed. In addition, since the flat top plate 22 is only exposed outside the case 23, there is an effect that cleaning after cooking becomes easy. Further, since the combustion part 12 is not open to the outside, dirt such as boiling over during cooking does not enter the inside, and there is an effect that a good state can be maintained for a long time. In addition, since the inner wall of the combustion chamber 13 is covered with a heat insulating material, heat radiation from the inner wall can be prevented, and the temperature of the surface of the case 23 can be reduced. Also flame 3
Since 1 is not taken out of the case 23, there is an effect that it is possible to provide a safe cooking apparatus without being burned to the other.

In the embodiment, the air inlet 27 faces the outside, but indoor air may be taken in.

[0014]

As is clear from the above description of the embodiment, according to the combustion apparatus of the present invention, the following effects can be obtained. (1) A heat receiving portion is provided in the middle of the combustion gas passage, and a top plate that is exposed through the heat receiving portion is provided, so that sufficient heat is transmitted to a pot or the like placed on the top plate, and that a direct heat is generated. Thermal efficiency can be improved by preventing heat loss. (2) Because the path from the combustion chamber to the exhaust port is a closed path,
Since the combustion gas does not leak into the room and diffusion of odors, unburned components, and the like is prevented, comfortable cooking work can be performed. (3) Since only the flat top plate is exposed outside the case, cleaning can be easily performed.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a combustion apparatus according to an embodiment of the present invention.

FIG. 2 is a sectional view of a conventional combustion device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Combustion part 13 Combustion chamber 15 Combustion gas passage 16 Combustion gas outlet 21 Heat receiving part 22 Top plate 24 Blowing means 28 Fuel supply means

──────────────────────────────────────────────────続 き Continuing on the front page (72) Chinori Aso, 800 Tsutsui-cho, Yamatokoriyama-shi, Nara, Matsushita Household Equipment Co., Ltd. No. 1 Tonen Co., Ltd. (72) Inventor Tohru Akeboshi 1-3-1 Nishitsurugaoka, Oi-machi, Iruma-gun, Saitama Prefecture Tonen Co., Ltd. (56) References , U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) F24C 5/00-5/14 F24C 3/04 F24C 15/24

Claims (1)

(57) [Claims] A combustion chamber is provided downstream of a combustion section that receives fuel and combustion air and burns the fuel.
A combustion gas passage is connected to the downstream side of the chamber via a reversing passage and these are configured as a closed passage, and a combustion gas outlet having a tip facing the outside is provided downstream of the combustion gas passage, and heat is received in the combustion gas passage. A combustion device in which a top plate integrated with the heat receiving portion is exposed outside the device.