JPH064181Y2 - Liquid fuel combustion device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a liquid fuel combustion apparatus that atomizes and burns a supplied liquid fuel.

<Prior Art> As a conventionally used liquid fuel combustion apparatus, for example, Japanese Utility Model Publication No. 60-9542 is known. In this case, the fuel emitted from the fixed plate is atomized by the rotary scatter plate and vaporized by the peripheral wall of the vaporization chamber, and is further mixed with air by the stirring blade to form a flame by the burner head.

<Problems to be Solved by the Invention> However, this mechanism has the following problems.

(1) Since the stirring blade is close to the burner head, the temperature rises due to radiant heat, and the tar generation temperature range occurs, and tar may adhere.

(2) There is a limit to the outer diameter of the rotary scattering plate, which is greatly related to the atomized particle size of liquid fuel (the diameter of the droplet is proportional to the square root of the diameter of the rotary plate).

(3) When the distance t between the fixed plate and the rotary scatter plate is small (0.6 mm or less), there is no oil leakage even when using a vertical burner, but when the space t becomes large, the rotary scatter plate is more than the hole in the center of the fixed plate. The fuel that could not be moved to the ground dropped and caused an oil leak.

(4) The number of parts required for the atomization mechanism is large.

In view of the above situation, the present invention has an object to provide a liquid fuel combustion apparatus in which a boss between a conventional rotary scatter plate and a stirring blade is removed and a rotary scatter agitator is arranged such that the stirring blade is reversed. It is a thing.

<Means for Solving Problems> In the present invention, a vaporization chamber and a burner head for burning a mixed gas of fuel and air vaporized in the vaporization chamber are provided, and the vaporization chamber has a fixed plate and a burner for the fixed plate. In a liquid fuel combustion device having a rotary scatter plate provided on the head side and driving the rotary scatter plate by a motor shaft inserted into a fixed plate, a stirring blade is integrated on the burner head side surface of the rotary scatter plate. The rotary scattering agitator is formed, and the fixing plate has a shape in which a burring hole for inserting a motor shaft provided at the center is set upright and a plurality of fixing legs are arranged at the peripheral edge. The fuel is supplied to the surface of the fixed plate side.

<Operation> Due to the above-mentioned configuration, if combustion is blown from the fuel supply pipe to the lower surface of the rotary scattering stirrer that is attached to the motor shaft and rotated, the stirring blade moves away from the burner head and the fuel comes into direct contact, so The particle size is lowered and tar is not generated.

Further, the fuel that cannot move to the rotary scatter plate can be smoothly supplied to the vaporization surface through the plurality of fixed leg portions of the fixed plate.

<Embodiment> Hereinafter, the present invention will be described in detail with reference to the drawings of an embodiment.

Reference numeral 1 denotes a rotary scatter plate 3 attached to a motor shaft 2 and a rotary scatter stirrer in which a stirring blade 5 is integrated on the surface of the rotary scatter plate 3 on the side of the burner head 4, and a space is provided below the rotary scatter stirrer 1. The fixed plate 6 is arranged via t. The fixing plate 6 has an upward burring hole 7 at the center thereof and a fixing leg portion 8 at the periphery. A fuel supply pipe 11 connected to a pump 10 provided in the hot water storage 9 is attached to the fixed plate 6. Reference numeral 12 denotes a motor arranged below the air supply casing 13, the motor shaft 2 being attached to the motor 12 by penetrating the burner vent hole 14, and a fan 15 provided in the middle of the motor shaft 2. Reference numeral 16 denotes a burner which is integrated in the upper part of the air supply casing 13 and accommodates the rotary scattering agitator 1 in a vaporization chamber 17. 1
Reference numeral 8 is a peripheral wall of the vaporization chamber 17.

To explain this action, first, the fixing plate 6 has the structure in which the upward burring hole 7 is provided in the central portion, so that the inner diameter of the fuel supply pipe 11 can be set to about 1.3 to 0.8.

When the motor 12 is driven in this state to rotate the integrated rotary scattering plate 1, the stirring blades 5 move away from the burner head 4 and the fuel directly contacts, so that the temperature decreases and tar is not generated. Further, by setting the stirring blade 5 upward, the diameter of the rotary scattering plate 3 can be increased to promote atomization, and even when the distance between the fixed plate 6 and the rotary scattering agitator 1 is widened, the central part is directed upward. Due to the burring hole 7 (about 1 mm in height), the fuel does not drop downward from the central portion. That is, there is no oil leak. Moreover, the fuel that cannot be completely moved by the rotary scatter plate 3 can be smoothly supplied to the vaporization surface through the plurality of fixed leg portions 8 around the fixed plate 6. Also,
If the fuel supply pipe 11 is made to have a diameter of about 0.8φ, the gap t can be doubled as compared with the conventional one, and the control size can be relaxed.

<Effects of the Invention> As described above, the liquid fuel combustion apparatus of the present invention has a structure in which the stirring blade is arranged on the upper surface (burner head side) of the rotary scatter plate that directly receives the fuel from the rotary scatter stirrer, and the fixed plate faces upward. Due to the structure with the burring hole, the generation of tar is not caused when atomizing and stirring the liquid fuel, and the diameter of the rotating scattering plate can be made large by being disturbed by the conventional stirring blade (up until now, it was formed downward). However, since the stirring blade itself is a conventional rotary scattering plate, it has a large diameter and promotes atomization.
Furthermore, even if the distance between the fixed plate and the rotary scattering plate increases,
Fuel that cannot move to the rotating scatter plate can be smoothly supplied to the vaporizing surface through multiple fixed legs of the fixed plate, and oil leakage does not occur in the upward burring hole in the center of the fixed plate. Has the practical effect of.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a vertical sectional view, FIG. 2 is an enlarged sectional view of the main part, FIG. 3 is a perspective view of a fixing plate, and FIG. 4 is a fuel atomization state. FIG. DESCRIPTION OF SYMBOLS 1 ... Rotating scatterer, 3 ... Rotating scatterer plate, 4 ... Burner head, 5 ... Stirring blade, 6 ... Fixed plate, 7 ... Burring hole,
11 ... Fuel supply pipe.

Claims (1)

[Scope of utility model registration request] 1. A vaporization chamber and a burner head for burning a mixed gas of fuel and air vaporized in the vaporization chamber, wherein a fixed plate is provided in the vaporization chamber and a rotary scattering plate provided on the burner head side of the fixed plate. In a liquid fuel combustion device having a motor shaft inserted into a fixed plate and driving the rotary scatter plate, a rotary scatter stirrer having a stirring blade integrated with the burner head side surface of the rotary scatter plate is formed, and The fixing plate has a burring hole for inserting the motor shaft provided at the center in an upright position and a plurality of fixing legs arranged at the periphery, and supplies fuel to the surface of the rotary scattering mixer on the fixing plate side. A liquid fuel combustion apparatus characterized by: