JPS5921444B2 - liquid fuel combustion equipment - Google Patents

Description

Detailed Description of the Invention The present invention sends a part of liquid fuel centrifugally atomized by an atomizer and primary air to a vaporizer, burns the generated vaporized fuel mixture, and uses a damper to This relates to a liquid fuel combustion device that simultaneously changes the delivery amount of atomized fuel and primary air, thereby preventing fluctuations in the amount of combustion and ensuring safe combustion.

That is, in the combustion device described above, the atomization device and the vaporization device are configured separately and communicated with each other, and a portion of the generated atomized fuel is sent out and combusted, so it is possible to obtain a small amount of combustion. Moreover, since the damper simultaneously changes the delivery amount of atomized fuel and primary air, the range of adjustment of the thermal power can be widened.

However, the atomized fuel passing through the damper is sent to the vaporizer by both the sending force due to centrifugal force and the conveying force of the primary air passing through the damper.

In order to set the combustion amount to a small amount, it is necessary to control both the amount of fuel and the amount of primary air to a small amount. Therefore, the damper opening area becomes minute and the air flow speed in a part of the damper increases.

When the wind speed passing through the damper is high, it attracts atomized particles suspended in the atomization chamber and droplets attached near the damper, which disturbs the air-fuel ratio, causing fluctuations in combustion amount and red flames. The purpose of the present invention is to improve the above-mentioned drawbacks, and the damper is provided with a part of the fuel damper and a part of the air damper, and a part of the air damper is provided with an atomizer. By configuring it on the population side, it is possible to set the wind speed of a part of the fuel damper provided near the communication part of the atomization device to be low, thereby making it possible to stably supply fuel.

Next, the present invention will be explained with reference to the drawings showing one embodiment thereof.

FIG. 1 is a configuration diagram showing the entire structure of this embodiment, FIG. 2 is a cross-sectional view showing the state in which atomized fuel is sent from the atomization container to the vaporization tube, and FIG. 3 is a perspective view of the vaporization tube. FIG. 4 is a perspective view of the atomization container, and FIG. 5 is a perspective view of the damper.

Reference numeral 10 designates an atomizing container having a cylindrical inner surface, with a rotary plate 22 disposed approximately in the center, one side of the cylindrical surface having a large opening to form an atomized fuel outlet section 11, and the other side having a small opening. o12, which is provided with the air mass 11a, is a cylindrical damper that is inscribed in the atomization container 10 and is rotatable.A damper shaft 14 is provided at the top, and 17 is an adjustment lever connected to this. The contacting gasket 15 seals the upper part of the atomization container 10 together with the lid 16.

Reference numeral 1 denotes a vaporizing cylinder whose lower side is opened to protrude an atomized fuel inlet portion 4, which is communicated with the atomized fuel outlet portion 11 with a heat insulating material 9 in between.

2 is an electric heater, above which a partition plate 5 and a burner cap 6 are arranged to form a lower flame.

Further, a fan case 18 having a fan impeller 23 is arranged below the atomization container 10, and a lower cylinder 19 partitioned by a support plate 26 on which the motor 20 is mounted is arranged below the fan case 18, and A pump case 2B having a pump impeller 24 is connected below the suspended sub-tank 27.

Reference numeral 21 denotes a rotating shaft of the motor 20, which drives the rotating plate 22, fan impeller 23, and pump impeller 24.

Reference numeral 29 denotes an oil supply pipe that communicates the discharge side of the pump case 28 with the atomization container 10, and is opened toward the upper surface of the rotary plate 22.

30 is a drain pipe that communicates between the atomization container 10 and the sub-tank 27; 31 is an oil pipe that communicates between the sub-tank 27 and the leveler 32; and 25 is an air suction port formed in the lower cylinder.

33 is a substrate, 34 is a wind conduit that communicates the discharge part of the fan case 18 with the opening A13a, and 35 is a constriction part for pressurizing a part of the air discharged from the fan case 18 into the atomization container. .

13a is a part of the fuel damper with a large opening in the cylindrical surface of the damper, which corresponds to the atomized fuel outlet part 11, and 13b is a part of the air damper with a small opening, which corresponds to the air population 11a and is a fuel damper and an air damper, respectively. form.

Next, the operation of this embodiment configured as described above will be explained.

First, the electric heater 2 is energized to preheat the vaporization cylinder 1, and then the motor 20 is driven, and air is supplied from the air supply 11a of the atomization container 10 by the rotation of the fan impeller 23.
At the same time, the rotation of the pump impeller 24 causes the fuel oil to continuously flow down onto the rotating plate 22 in a quantitative manner.

The fuel is sent in the form of atomized particles from the entire periphery of the rotating plate 22 due to centrifugal force, but most of the fuel is blocked by the damper 12 and flows downward, returning to the sub-tank 27.

Also, some of the atomized particles are transferred to the fuel damper 13 of the damper 12.
a, and hits the heating wall of the vaporization cylinder 1, where it immediately vaporizes.

At the same time, air supplied from the air supply 11a is also sent to the vaporization tube 1 via the fuel damper 133, mixed with the vaporized fuel, and ejected from the flame lower, where it is ignited and combusted.

To adjust the firepower, operate the adjustment lever 17 and rotate the damper 12.The fuel damper part 13a and the air damper part 1
3b, the amount of atomized fuel delivered and the amount of air delivered simultaneously change, making it possible to keep the air-fuel ratio constant and adjust the amount of combustion.

Also, the air supplied from the air supply 11a is supplied to the atomization container 10.
Since the fuel passes through the inside of the atomization container 10 and the fuel damper portion 13a at a low speed, atomized particles floating inside the atomization container 10 and droplets adhering to the vicinity of the opening A13a are hardly attracted and sent out.

More specifically, the amount of air passing through the constriction part 35 and flowing into the atomization container 10 is small, and the atomization particles are prevented from entering the fan case 18 without affecting the air-fuel ratio. .

In the present invention, as described above, a part of the fuel damper and a part of the air damper are configured separately and are made to work together to reduce the passing wind speed in the atomization container and the fuel damper. It is possible to change the combustion amount while keeping the air-fuel ratio constant without attracting particles or droplets into the vaporization cylinder, and to obtain stable combustion without fluctuations in the combustion amount or red flames.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of a liquid fuel combustion device showing an embodiment of the present invention, Fig. 2 is a cross-sectional view of the atomization container and vaporization tube of the same device, and Fig. 3 is a perspective view of the vaporization tube of the same device. 4 is a perspective view of the atomization container of the same device, and FIG. 5 is a perspective view of the damper of the same device. 1... vaporizer cylinder, 2... electric heater, 1
0...Atomization container, 11a...Air inlet, 12...Damper, 13a...Part of fuel damper, 13b...Air Damper part, 18
...Fan case, 22...Rotating plate,
34... Wind pipe, 35... Throttle part.

Claims (1)

[Claims] 1. An atomization device that atomizes liquid fuel by centrifugal force is communicated with a vaporization device having a heating wall using an electric heater, etc., and a damper is provided in the atomization device, and this damper is installed near the communication portion with the vaporization device. A part of the fuel damper is provided to change the amount of delivered atomized fuel, and a part of the air damper is to change the amount of air supplied to the atomizer, and the part of the air damper is provided to the atomizer. Liquid fuel combustion device configured on the air intake side.