JPS582324B2 - Ekitainenriyounenshiyousouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention improves the burner part of a device in which fuel sent from an oil pipe is atomized and combusted using a rotating body and a diffuser plate, thereby reducing the amount of fuel at the time of ignition. Stable combustion is achieved even at low flow rates, and complete combustion is achieved even at steady state.

To explain the diagram below, the liquid fuel combustion device has exterior 1
It is comprised of a burner section A1 installed inside, a fuel chamber B, a heat exchanger C, a fuel tank D, and a fuel supply device E.

The burner section A has a burner body 6 installed in the front chamber 3 of an outer casing 5 which is partitioned into front and rear chambers 3 and 4 by a heat insulating support plate 2, and a motor 7 installed in the rear chamber 4.

The front of the burner body 6 has a trumpet-shaped opening 9 facing the combustion chamber B, and a large number of secondary air supply holes 8 are bored around the periphery of the opening.

Furthermore, a conical rotating body 11 attached to the rotation shaft 10 of the motor 7 and a diffusion plate 12 are located inside the burner body 6, and the fuel sent from the oil pipe 13 is dispersed into mist by the rotating body 11 and the diffusion plate 12. It hits the inner wall of the burner body 6, where it is ignited by the igniter 14 and starts combustion.

Then, the diffusion plate 12 is heated, and therefore the flame is vaporized within the diffusion ring 15 added to the diffusion plate 12, and the flame moves from the inner wall of the burner body into the diffusion ring 15, and normal combustion occurs within the diffusion ring.

That is, the outlet 13' of the oil pipe 13 is located on the outer periphery of the conical rotating body 11, and the fuel from the fuel tank D is transferred to the pump 1.
6. Oil supply pipe 1 via fuel supply device E such as solenoid valve 17
3 to the outer periphery of the rotating body 11.

The diffusion ring 15 attached to the diffusion plate 12 is attached via a support piece 16 that integrally extends from the diffusion plate 12 with a small gap g therebetween.

Further, a large number of small holes 17 are opened in the diffusion plate 12, and the atomized fuel gas and primary air are introduced into the diffusion ring 15 through the gap g and the small holes 17 to complete combustion during steady state. .

A drain pipe 18 is attached to the lower end of the burner body 6, and the lower end of this pipe 18 opens into the fuel tank D, so that fuel that is not combusted at the time of ignition or in the early stages of combustion is stored in the lower part of the burner body 6. Drain pipe 1
8 and then returned to the fuel tank D.

Therefore, a flange portion 19 is provided at the tip of the burner body 6 so that the fuel is stored in the burner body 6 so as not to flow out to the combustion chamber B side.

A fan 21 is attached to the rotating shaft 20 on the other side of the motor I to increase the amount of combustion air, and the fan 21 sucks outside air from the intake pipe 22 and supplies primary air to the through hole provided in the support plate 23 of the motor 7. 24 and an opening 25 provided in the heat insulating support plate 2 and the burner body 6 to supply secondary air into the burner body 6, and an opening 26 provided in the through hole 24 and the outer periphery of the heat insulating support plate 2.
The air is then supplied into the combustion chamber B from a secondary air supply hole 9 provided at the periphery of a trumpet-shaped opening 9 at the tip of the burner body 6.

The combustion chamber B is connected to the heat exchanger C by a connecting pipe 27, and the combustion gas is meandered by a baffle plate 28 in the heat exchanger C and is discharged to the outside through an exhaust port 29 and an exhaust pipe.

The heat generated in the combustion chamber B and the heat exchanger C is exchanged with air blown from a warm air fan (not shown) to become warm air, which is supplied into the room from the discharge port 30 to heat the room.

Figures 4 and 5 show another embodiment of the present invention, in which two sets of a diffusion plate and a diffusion ring are provided.During steady combustion, combustion occurs within the inner diffusion plate 12' and diffusion ring 15', so that the smoke The temperature of the γ bearing 31 becomes lower and the combustion noise becomes smaller.

Then, fuel is pumped up from the fuel tank D by the fuel supply device E, dripped onto the conical rotating body 11 through the oil supply pipe 13, and is dispersed and atomized in the direction of the diffusion plate 12 and the diffusion ring 15 by centrifugal force. The mixture is mixed with primary air and ignited and burned by the igniter 14.

At the initial stage of ignition, combustion occurs on the inner wall surface of the burner body 6, but the flame heats the diffusion plate 12 and the diffusion ring 15, and this heat turns the fuel into vaporized gas, and the primary air flows through the diffusion plate 1.
2 and the ring 15 and the small holes 16 provided in the diffusion plate 12 into the diffusion ring 15, mixed, and further secondary air from the secondary air supply hole 8 causes the diffusion ring 15 to be
The flame moves inside and complete combustion occurs.

On the other hand, since the combustion temperature at the time of ignition is low, all of the fuel sent in a fixed amount is not used for combustion but is stored in the burner body 6.

This stored fuel is returned to the fuel tank D through the drain pipe 18.

As described above, the present invention provides a diffusion plate provided in a burner body with a large number of small holes, and a diffusion ring is arranged around the outer periphery.
The diffusion ring is added to the diffusion plate with a small gap between it and the outer periphery of the diffusion plate, so during steady combustion, primary air is supplied from the gap between the diffusion plate and the diffusion ring and the small holes in the diffusion plate. It mixes well with the fuel, allowing for complete combustion.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the liquid fuel combustion device of the present invention, FIG. 2 is an enlarged sectional view of the same main part, FIG. 3 is a plan view of the same, and FIG. 4 is an enlarged sectional view of the main part showing another embodiment. FIG. 5 is a plan view of FIG. 4. 13... Oil pipe, 11... Rotating body, 12, 12'... Diffusion plate, 15, 15'...
... Diffusion ring.

Claims (1)

[Claims] 1 In a device in which fuel sent from an oil pipe is atomized and combusted by a rotating body and a diffusion plate, the diffusion plate is provided with a large number of small holes and a diffusion ring is arranged around the outer periphery. , a liquid fuel combustion device in which the diffusion ring has a small gap between the outer periphery of the diffusion plate and is attached to the diffusion plate by a support piece.