JPH0125885Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention recovers the heat of the burner flame with a heat recovery body and transfers it to the cylinder via the heat conductor and the cylinder receiving plate. The present invention relates to a cylinder-internal stove equipped with a self-thermal vaporizer configured to heat liquefied fuel gas in the cylinder to promote vaporization.

<Prior Art> Such a technique is disclosed in, for example, Japanese Utility Model Application Publication No. 59-85500. That is, a heat recovery body having a heat absorption surface is disposed in the central space of the approximately annular burner to recover heat around the burner, and this heat is transmitted to the cylinder via the heat pipe and the cylinder receiving plate. In particular, the heat recovery body is provided with metal radial fins to form an endothermic surface, and the residual heat of the burner is recovered by this endothermic surface.

<Problems to be solved by the invention> According to the above-mentioned conventional technology, even if the burner firepower is increased to increase the amount of gas consumed, the residual heat of the burner is recovered by the fins accordingly, so that the liquefied fuel gas is not vaporized. However, the fins only partially contact the burner flame or cannot receive a stable high amount of heat, making it impossible to further increase the flame output of the stove. In other words, the mass of the heat recovery body is large,
Therefore, due to its large heat storage capacity, it is difficult to ignite the stove.
When extinguishing a fire or increasing or decreasing the firepower of the burner, there may be a response delay in the rise or fall of the temperature of the heat recovery body itself, resulting in over or under heating of the cylinder, which may cause a delay in combustion or There were disadvantages such as overheating of the cylinder, and furthermore, the fins obstructed the inflow of secondary air, making the flame stronger and inhibiting complete combustion.

The present invention was developed in view of these circumstances, and its purpose is to further increase the flame output of the stove by making it possible to receive a stable high amount of heat by bringing the heat recovery body into contact with the burner flame, and to further increase the flame output of the stove. The mass of the recovery body is reduced to improve thermal response, eliminate combustion delays and overheating of the cylinder, and also allow secondary air to flow smoothly into the flame to ensure powerful and complete combustion. It is to do so.

<Means for Solving the Problems> In order to achieve the above object, the present invention forms the heat recovery body in the shape of a thin, wide, small-mass, almost horizontal disk; The heat recovery body smoothly contacts the flame of the burner with its wide heat receiving surface, and also distributes the secondary air rising in the annular space of the burner almost evenly over the entire circumference of the annular row of crater holes on the upper surface of the burner. Arrange and configure at the guide height,
In addition, the connecting cylinder part is integrally extended downward from the center of the lower surface of the small-mass, thin, wide disk-shaped heat recovery body, and the starting end side of the heat conductor is inserted into the connecting cylinder part from below to provide a wide contact surface. It is characterized by being connected by.

<Function> As mentioned above, the heat recovery body has the required height of the annular inner space of the burner, that is, the height that allows the secondary air to be almost evenly distributed and guided over the entire circumference of the annular row of crater holes on the upper surface of the burner. The heat recovery body has a small mass and is formed in the shape of a thin, wide disk, and the heat recovery body has a small mass and is formed in the shape of a thin, wide disk, so that a sufficient amount of secondary air can flow into the flame to achieve strong and complete combustion. The cylinder is configured so that the cylinders are in contact with each other, and the received heat is transferred to the cylinder with extremely high thermal responsiveness depending on the strength of the flame, thereby eliminating combustion delays and overheating of the cylinder.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 is a longitudinal sectional side view of a stove according to the present invention, and FIG. 2 is a plan view thereof.

In these figures, numeral 1 is the stove case, 2
is a burner, 3 is a heat recovery body, 4 is a heat pipe, 5
is a cylinder, 6 is a cylinder receiving plate, 7 is a fuel adjustment knob that also serves as a spark plug, 8 is a cylinder set lever, and 9 is a trivet.

A self-thermal vaporizer having a characteristic structure of the present invention will be described below.

A heat recovery body 3 formed in the shape of a thin and wide disk having a small mass is arranged substantially horizontally above the annular inner space 10 of the burner 2. The height of the arrangement of the heat recovery body 3 is such that the wide disc-shaped heat receiving surface 3a can smoothly contact the flame of the burner 2, and the secondary air rising in the annular inner space 10 of the burner 2 can be brought into contact with the upper surface of the burner 2. crater hole 2a
They are arranged at a height that allows them to be distributed and guided almost evenly around the entire circumference of the annular row.

A connecting cylindrical portion 11 integrally extends downward from the center of the lower surface of the heat recovery body 3, and the starting end portion 4a of the heat pipe 4 is inserted into the connecting cylindrical portion 11 from below to make the heat pipe 4 relatively wide. Connect at the contact surface,
It has good heat conduction. The lower end leg 11b of this connecting cylinder part 11 is fixed to the mounting plate 12, and the outer space of this connecting cylinder part 11 forms a passage for secondary air rising toward the flame.

The cylinder receiving plate 6 is formed in an arc shape so that the lower outer circumferential surface 5a of the cylinder 5 contacts, and the terminal end portion 4b of the heat pipe 4 is inserted through the lower protruding portion 6a of the cylinder receiving plate 6. It is connected by fitting into the hole 6b.

Note that the heat recovery body 3 mentioned above. Connecting cylinder part 11, cylinder receiving plate 6, and connection parts 4a and 4b of heat pipe 4
is preferably made of a metal material that is a good thermal conductor.

<Effects of the invention> Since the present invention is constructed and operates as described above,
It has the following effects.

Since the flame of the burner smoothly contacts the heat recovery body with a large heat-receiving area, a stable and sufficient amount of heat can be received, which can accelerate the vaporization of liquefied gas and increase the flame output of the stove. .

(b) Since the heat-receiving area of the heat recovery body is large and the mass is small, it is possible to improve the thermal response, and it is possible to eliminate the delay in combustion immediately after ignition and the overheating of the cylinder after extinguishing.

C. Secondary air flows smoothly into the flame, making the flame stronger and achieving complete combustion.

(d) A connecting tube extends downward and integrally from the center of the lower surface of the heat recovery body, and the starting end portion of the heat pipe is inserted into the connecting tube from below to connect the heat pipe with a relatively wide contact surface. It can receive a high amount of heat.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional side view of a stove according to the present invention, and FIG. 2 is a partially cutaway plan view of the stove of FIG. 1... Stove case, 2... Burner, 2a...
Crater hole, 3... Heat recovery body, 3a... Heat receiving surface, 4...
...Thermal conductor (heat pipe), 4a... Starting end side part, 4b... Terminating end side part, 5... Cylinder, 6...
Cylinder receiving plate, 10... Annular inner space of burner, 11
...Connecting cylinder part.

Claims (1)

[Claims for Utility Model Registration] 1. An annular burner 2 and a cylinder receiving plate 6 are provided in the stove case 1, and fuel gas in a cylinder 5 placed on the cylinder receiving plate 6 is supplied to the burner 2 and combusted. The annular inner space 10 of the burner 2 is configured as follows.
A heat recovery body 3 is provided on the upper part of the cylinder 5, and a part of the heat of the flame of the burner 2 is recovered by the heat recovery body 3 and transmitted to the cylinder 5 via the heat conductor 4 and the cylinder receiving plate 6. In a cylinder internal type stove with a self-thermal vaporizer configured to heat the liquefied fuel gas inside and promote vaporization, the heat recovery body 3
The heat recovery body 3 is formed into a thin and wide almost horizontal disk shape with a small mass and a small mass, and the heat recovery body 3 having a small mass and thin disk shape smoothly contacts the flame of the burner 2 with a wide heat receiving surface 3a, and the annular shape of the burner 2. The structure is arranged at a height that allows the secondary air rising in the inner space 10 to be almost evenly distributed and guided over the entire circumference of the annular row of crater holes 2a on the upper surface of the burner 2, and The connecting cylinder part 11 integrally extends downward from the center of the lower surface of the disk-shaped heat recovery body 3.
1. A cylinder-internal stove with a self-thermal vaporization device, characterized in that a starting end portion 4a of a heat conductor 4 is inserted into the heat conductor 4 from below and connected through a wide contact surface. 2. Scope of Utility Model Registration Claims In the cylinder-internal stove with self-heating vaporizer described in paragraph 1,
The thermal conductor 4 is a heat pipe.