JPS59125310A - Burning device - Google Patents

Abstract

PURPOSE:To perform easy and inexpensive seal, by a method wherein an annular groove is formed in the combustion plate placing part of an evaporating cylinder, the hanging part of an annular lock plate surounding the combustion plate is fitted in the annular groove, and at the horizontal part of the annular lock plate, a portion around the combustion plate is pressed with force toward the combustion plate placing side of the evaporating cylinder. CONSTITUTION:A combustion plate 9 has an annular flange part 9B formed integrally therewith around the opening part 9A side, and the flange part 9B is secured by means of an annular lock plate 23 in an L-shape in cross section surrounding therearound. An annular groove 6C is formed in a welded juncture between an opening step part 6B of an evaporating cylinder 6 and the annular lock plate 23, and the hanging part of the annular lock plate 23 is airtightly fitted in the groove 6C. Size is adjusted so that a gap between the lock plate and a wall 6D of the evaporating cylinder 6 is reduced to the minimum, the horizontal part of said lock plate 23 is pressed with force toward the evaporating cylinder 6 side, and this causes the combustion plate to be airtightly attached to the upper opening part of the evaporating cylinder 6.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion device, and particularly to a seal structure between a combustion plate and a carburetor cylinder.

Generally, the combustion plate and the vaporization tube are made of different materials and have different coefficients of thermal expansion, so a gap is created between the combustion plate and the vaporization tube during combustion, and combustion gas leaks through the gap.

Conventionally, a gasket such as gasket is wrapped around the combustion plate such as a schbank plate and sealed.
The drawback was that it was time-consuming to work with.

This invention was made in view of the above-mentioned drawbacks, and is a simple invention in which an annular groove is formed in the combustion plate mounting portion of the carburetor cylinder, and the hanging portion of the annular stop plate with a road-like cross section surrounding the combustion plate is At the same time as fitting into the annular groove, at the horizontal part of the annular stop plate,
The surrounding part of the combustion plate is placed on the combustion plate mounting part 11 of the vaporization tube.
It is an object of the present invention to provide a combustion device which has a configuration in which the combustion plate and the carburetor cylinder are pressed together, thereby eliminating the need for a gasket, thereby improving workability and effectively sealing between the combustion plate and the carburetor cylinder.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

Note 2: This embodiment describes an embodiment in which a combustion device according to the present invention is incorporated into a hot air heater.

That is, in FIGS. 4 and 5, (1) is a box body with a hot air outlet (for one person) at the upper front and an intake hole (1B) at the upper rear side, and (2) is a box body (1). The blower installed in the intake hole (1B) draws indoor air through the intake hole (1B) and blows the warm air through the upper part of the two-box body (1) to the hot air outlet (LA).
It blows air to lil. (3) is a combustion plate (9) of a combustor (5) in a combustion device (A) to be described later, in other words, a transparent heat-resistant glass provided on the front part of the box (1) facing the flame; (A) is a combustion device built into the lower part of the box (1).

The detailed structure will be described later using FIGS. 1 to 3. (4) is a hollow cylindrical reflector with a mirror-like inner surface, which is provided to surround the combustion plate (9) of the combustion device (A), and has a notch in the part facing the l11' thermal glass (3). , a window portion (4A) is formed in this portion.

Figures 1 to 3 show the detailed structure of the above-mentioned combustion device. In Figure 2, (5) is a combustor, and (6) is a cylindrical vaporization cylinder that forms an i/i mixing chamber (6A). It is made of alloy or the like. (7) is a preheating heater embedded in the wall of this vaporizer cylinder (6), and (8) is a throttle plate provided at the upper opening of the vaporizer cylinder (6), which has a throttle hole (8A) in the center. .

(9) is the upper opening of the mixing chamber (6A), that is, the vaporizing cylinder (6
) with a roughly hollow conical combustion plate located in the upper opening.

The above-mentioned vaporizer cylinder (6), heater (7), and aperture plate (8)
) constitutes a combustor (5).

This combustion plate (9) was made by sintering silicon oxide particles or particles containing 69% or less of aluminum oxide using a binder. It is made of a porous sintered body made of ceramic, etc., which is like a hardened sponge, and unlike conventional combustion plates, there is no linear flame opening from the bottom of the mixing chamber side to the outer surface 1, and the sintered body exists in itself. A labyrinth of extremely small ventilation holes intricately extending from the surface of the mixing chamber 1-111 to the outer surface are used as flame ports.

Furthermore, this combustion plate (9) is integrally provided with an annular flange part (9B) around the opening (9A) side, as shown in detail in FIG. The flange part (9B) is fixed with the annular stop plate (c), but the opening step part (6B) of the vaporizer cylinder (6) and the annular stop plate (2)
There is an annular groove (6C) in the contact part of the floor, and the hanging part of the annular stopper plate (C) is tightly inserted into this groove (6c), and the wall (6D) of the vaporizer cylinder (6) The horizontal part of the stop plate (C) above is connected to the vaporizer cylinder (
6) is airtightly attached to the upper opening of the vaporizer cylinder (6) by pressing it toward the side.

In addition, 0 [ is the vaporizer cylinder (6A) so that one end faces into the mixing chamber (6A).
) A nozzle connected to the wall, αυ is an air pipe connected to this nozzle Qt), α2 is an air volume control valve provided in the middle of this air pipe 0υ, α3 is a combustion air blower connected to the air pipe 0υ, 04) is a needle provided coaxially within the nozzle 0I19, one end facing into the mixing chamber (6A) through the combustor (5) side port of the nozzle body, and the other end facing the orifice pipe αe described later. It is about to be connected at one end. This is an oil level regulator that stores a predetermined amount of liquid fuel to be supplied to the a1-burner (5), and an oil reservoir is formed inside by a partition (15A). Oe is an orifice pipe whose one end is immersed in the oil reservoir of the oil level regulator o8, and the other end is connected to the needle α as described above, ση is the static pressure return pipe, and one end is immersed in the oil level regulator 09. It extends upward, and the other end is connected to the air pipe Qll. OQ is an oil pipe, one end of which is connected to the bottom of the oil reservoir of the oil level regulator 09, and the other end connected to the bottom of the sub-tank a9.

201 is an electromagnetic pump for oil feeding installed in the middle of the oil feeding pipe 0 seconds, QD is on the bottom of the part outside the oil sump part of the oil level regulator 0ω,
Also, an overflow pipe whose other end is connected to the oil supply pipe o, e
One is a cartridge tank for storing liquid fuel, which is placed on the sub-tank (11).

The combustion device is configured as described above.

Next, to explain the operation of this device, the first step is to turn on the power switch (
(not shown) is turned on to energize the heater (7) and preheat the wall of the vaporizing cylinder (6) at a temperature necessary for vaporizing the liquid fuel.

When preheating is complete, the blower θJ is moved.

The oil level regulator 0 is maintained through the air pipe Ill and the static pressure return pipe αD.
Blow air within ω. The combustion air blown into the air pipe αυ is ejected into the mixing chamber (6A) through the nozzle 01.

On the other hand, the electromagnetic pump (to) is also driven, and the liquid fuel stored in the sub-tank a9 from the two tanks is supplied to the oil sump in the oil level regulator αj through the oil feed pipe 0 level.
! The liquid fuel supplied to the oil sump section No. 19 is
If it exceeds the height of 5A), it will overflow.

Return to oil feed pipe 08 through overflow pipe (2I),
The oil is pumped up again by the electromagnetic pump (4), and the fuel consumed by their combustion is supplied to the tank (2z) to keep the oil level constant.

At this time, air is blown into the oil level regulator (15+) through the static pressure return pipe (Iη, so the pressure (P
) is applied to press the oil level, and the liquid fuel flows into the orifice pipe 06.
1 to the needle (+4).Needle α4
Since the combustion air is ejected from the nozzle 00, the liquid fuel supplied to the tank is atomized by the shear force of this air flow, mixes with the combustion air, and spreads into a two-cone shape, causing the inner wall of the vaporizer cylinder (6) to flow. collides with and is vaporized.

The heated and vaporized liquid fuel gathers in the throttle hole (8A) of the throttle plate (8) while mixing with the surrounding combustion air, and the mixture concentration is made uniform, and this mixed gas is...

It is ejected through the throttle hole (8A) of the throttle plate (8), reaches the outer surface of the combustion plate (9) through the maze-like extremely small ventilation holes of the combustion plate, and is ignited by a predetermined ignition means, causing the combustion plate ( 9) Start red-hot combustion so as to envelop this entire surface.

In this invention, the gas coming out of the flange (9B) reaches the annular stop plate (c) groove, but as shown in FIG. 6C) is fitted with an annular stop plate t2.1, and the longer it is fitted, the more difficult it is for the combustion gas to cross the groove and move towards the wall of the carburetor cylinder (6). The flames exit from the boundary between the opening of the annular stopper plate (c) and the combustion plate (9), join the flame burning on the outer peripheral surface of the combustion plate (9), and
The combustion gas from the flange part (9B) is about to burn out. Here, if the gap between the wall (6D) of the vaporization cylinder (6) and the outer circumference of the annular stop plate is minimized, the sealing performance will be even more reliable.

The apparatus according to the present invention operates as described above.

The heat generated by this combustion is sent by the blower (2) as shown in Figures 4 and 5, and is blown out from the hot air outlet (1 person) and is combusted. It is retro-reflected by the surrounding reflector (4) and the window of the reflector (4) (
4A) and released to the outside through the transparent glass (3).

Heat the room. In the above embodiment, in order to significantly increase the contact area between the flame and the combustion plate (9),
Further, in order to increase the combustion area within a limited space, the combustion plate (9) is shaped like a container, but it goes without saying that it may also be shaped like a flat plate.

Further, in the above embodiments, the fuel is liquid fuel, but gas fuel may also be used.

As described above, according to the present invention, in the combustion plate in which the peripheral portion of the combustion plate is placed around the opening of the carburetor cylinder forming the mixing chamber, the annular groove is formed in the combustion plate mounting portion of the carburetor cylinder. The hanging part of the annular stop plate with a road-shaped cross section surrounding the combustion plate is fitted into the annular groove yc, and the horizontal part of the annular stop plate marked -F is fitted around the surrounding part of the combustion plate. This is because it is pressed against the combustion plate mounting portion side of the carburetor cylinder.

Ensures sealing against combustion gas leaks.

Wrapping a conventional gasket around the combustion plate saves time and allows for a simple seal on the gable side.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an apparatus according to an embodiment of the present invention, and FIG.
The figure is an enlarged sectional view of the combustor in Figure 1, and Figure 3 is B in Figure 2.
FIG. 4 is a front view showing a warm air heater incorporating a device according to an example M11 of the present invention, and FIG. FIG. In addition, the same symbols in the two figures indicate the same parts, (5) is the combustor, i6) Id' carburetor cylinder, 66A) is the mixing chamber, (9)
) is a combustion plate. The split is an annular stop plate, and (6c) is a groove. Agent Makoto Kazuno - 1 thing 2 Figure 36 ne 1 color 46- 'l, 51. n

Claims (4)

[Claims] (1) In a device in which the peripheral part of the combustion plate is placed around the opening of the carburetor cylinder forming the mixing chamber, an annular groove is formed in the combustion plate mounting part of the carburetor cylinder, and the combustion plate Surrounding fr:
The hanging part of the enclosing annular stop plate with a road-shaped cross section is fitted into the annular groove, and the horizontal part of the annular stop plate is placed so that the peripheral part of the combustion plate is placed on the side of the combustion plate mounting part of the carburetor cylinder. A combustion device made by pressing (2) The combustion plate is shaped like a container with an opening on the side of the mixing chamber, and has a flange extending outward around the opening, and the flange is surrounded by an annular stop plate. Patent Ml'! is characterized in that the flange portion is pressed by an annular stopper plate while being housed. Search range 1
Combustion device as described in section. (3) A pestle characterized in that the combustion plate is made of a porous sintered body, and the combustion gas ejected from the pores is combusted on the surface. Or the combustion device according to item 2. (4) The combustion device 1a according to claim 41, item 2 or 3, wherein the combustion plate is conical.