JPS5952109A - Liquid fuel combustion apparatus - Google Patents

Abstract

PURPOSE:To stabilize combustion by preventing fuel particles from scattering, by disposing a single number or a plural number of scatter preventing baffle plate(s) in a recess provided in the neighborhood of an outlet for atomized particles of an atomizer casing. CONSTITUTION:A fixing metal fittings 34 and scatter preventing baffle plates 37 and 38 are fitted to a support metal fittings 33 provided in an atomizer casing 1, which is composed so that atomized particles flown about by rotating centrifugal force of a rotor 11 does not scatter again, by decreasing the speed of the particles. That is, the side faces of the fittings 34 and the baffle plates 37 and 38 are designed so as to be crossed with the flying direction of atomized particles by the rotating force of a rotor, having a sharp angle, and the end faces of plates abutting to the atomized particles are formed in the shape of a knife edge. Because of the above-mentioned structure, the atomized particles do not hit the joint parts 35 and 36, which is the cause of scattering of atomized particles in the prior art, accordingly, scattering of fuel is largely decreased.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention atomizes liquid fuel using a rotating plate (hereinafter referred to as a rotor), selectively sends a part of it to a vaporizer, and collects the remaining atomized fuel. The configuration of a conventional example and its problems First, a liquid fuel combustion apparatus, which is a prerequisite example of the present invention, will be explained using the schematic vertical cross-sectional view of FIG. 1. do. Reference numeral 1 denotes an atomizing container, and a fan casing 2, a motor casing 3, and a pump casing 4 are connected to the bottom thereof.

An air fine adjustment screw 6 and a fan guide 6 are arranged in the fan casing 2, and a motor 8 is attached to the motor casing 3 via a motor mounting leg 7. The double-shaft motor 8 has a pump impeller 9 at the lower end and a fan 10 at the center.
A rotor 11 is fixed to the motor shaft at the upper end so that the rotor 11 rotates together with the motor shaft. The pump impeller 9 is located below the oil level 13 of the oil tank 12, and generates a pump function by rotation. When power is applied to the motor 8, the shaft rotates, and fuel is generated by the rotation of the pump impeller 9. Fuel is sucked in from the suction port 14 and discharged from the pump discharge port 16 due to the pump function. The discharged fuel has its pressure adjusted by a pressure regulating valve 16, passes through a fuel supply pipe 17, passes through an orifice 19 housed in a holder 18, and then drops onto the rotor 11 from a nozzle 20. The fuel dripped onto the rotor 11 is atomized uniformly over the entire circumference 3600 by the rotation of the rotor, and a portion of the fuel is atomized at the atomized fuel outlet 2.
1 to the vaporization line 22, and the rest is sent to the return line 2.
3, return to the oil tank 12 again. The fuel damper 24 is rotated by a lever 25, and by continuously changing the opening area of the atomized fuel outlet 21, the flow rate of atomized fuel sent to the carburetor 22 is continuously changed, and at the same time, the interlocking sleeve 26 The air damper 2'7 is rotated through the air damper 2'7 to change the air damper opening area.

On the other hand, the combustion air trapped in the fan 10 and taken in through the air supply filter 28 is continuously changed in accordance with the atomized fuel flow rate by the air damper 27, which changes in conjunction with the movement of the fuel damper. 29 and is supplied to the vaporizer 22.

The vaporizer heated by the heater 3o is attached to the atomization container 1 via a heat insulator 31, and is connected to the atomization fuel outlet 21.
The atomized fuel sent in is gasified by the heating wall.

The gasified fuel is mixed with combustion air supplied from the air outlet 29 and burned in the burner head 32.

FIG. 2 does not show a cross-sectional view of a conventional atomizing container 1 having the above-described configuration and operation. Atomization container 1
The fuel atomized by the rotor 11 in the fuel damper 24a and the damper metal fittings 24b and the supporting metal fittings 33 are
The atomized fuel outlet 21 is protruded from the atomized fuel outlet 21 by the tips of the fixing fittings 34 attached to the
It reaches the vaporizer 22 via the vaporizer 22 and is vaporized.

By the way, in the structure inside the Hagi atomization container of the conventional example, the atomized particles flying out from the rotor 11 collide with the joint 35 between the support metal fitting 33 and the fixing metal fitting 34 and the joint portion 36 between the support metal fitting 33 and the atomization container 1. Since the flying speed of the particles is high, the atomized particles are disrupted, and some of them fall onto the rotor 11 again, are given speed by the rotation of the rotor, and are sent to the vaporizer from the atomized fuel outlet. Ta. This is because, in the original proposal 1, it was planned that the fuel sent through the fuel supply pipe 17 would be selectively sent to the carburetor at a certain rate, but unscheduled fuel would be sent to the carburetor. Meaning, yet the falling of particles onto the rotor is random due to the scattering of atomized particles. As a result, the amount of fuel vaporized in the vaporizer changes randomly from moment to moment, resulting in unstable combustion.

Purpose of the Invention In view of the two drawbacks, the present invention provides a method for preventing scattering of fuel particles,
The present invention provides a liquid fuel combustion device with stable combustion.

Structure of the Invention In order to achieve the above object, the liquid fuel combustion device of the present invention has the following features:
A fuel damper is arranged so that fuel supplied from an oil chamber is dropped onto a rotating plate in an atomizing container, and a part of the fuel atomized from the entire circumference of the rotating plate is selectively sent to a vaporizer. In a liquid fuel combustion device in which the remaining fuel is returned to the oil chamber, one or more anti-scattering plates are arranged on four parts of the atomization container near the atomized particle outlet. Ru.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

A fixing metal fitting 3 is attached to a supporting metal fitting 33 provided in the atomization container 1.
4 and several anti-scattering plates 37 and 38, which reduce the speed of atomized particles ejected by the centrifugal force of rotation of the rotor 11 and prevent them from being scattered again. In other words, the side surfaces of the fixture 34 and scattering prevention plates 37 and 38 are arranged so that the flight direction of the atomized particles from the rotor intersect at an acute angle, and the end surfaces of the plates that come into contact with the atomized particles have a knife-like shape. Because of the above configuration, the atomized particles do not collide with the joint portion 36° 36, which conventionally caused scattering of the atomized particles, and scattering is significantly reduced.

Effects of the Invention As explained above, according to the present invention, the following effects can be expected.

(1) The scattering of atomized particles inside the atomization container is significantly reduced,
Very few scattered particles are sent by the rotor to the carburetor, and the combustion flame is stabilized.

(2) The collision phenomenon of atomized particles is extremely reduced, and the noise generated at the time of collision is small, resulting in low noise.

[Brief explanation of drawings]

FIG. 1 is a schematic vertical sectional view of a liquid fuel combustion device as a prerequisite example of the present invention, FIG. 2 is a cross-sectional view of an atomization container as a conventional example, and FIG. FIG. 1...Atomization container, 11...Rotating plate (rotor), 33...Supporting metal fittings, 34...Fixing metal fittings, 37, 38... Shatterproof plate. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 2 3bA

Claims (1)

[Scope of Claims] (1) Fuel supplied from an oil chamber is dropped onto a rotating dozing block in an atomizing container, and a portion of the fuel atomized from the entire circumference of the rotating plate is selectively removed. In a liquid fuel combustion device in which a fuel damper is disposed to send fuel to a vaporizer and the remaining fuel is circulated to the oil chamber, one or more scattering prevention units are provided in a recess provided near the atomized particle outlet of the atomization container. A liquid fuel combustion device equipped with a plate. @) The liquid fuel combustion device according to claim 1, wherein the scattering prevention plate is arranged at an acute angle with respect to the scattering direction of the atomized fuel particles. (3) The liquid fuel combustion device according to claim 2, wherein the dispersion prevention plate that comes into contact with the atomized fuel particles scattered from the rotating plate has a knife-shaped tip.