JPS5841407B2 - Lubricating device for vaporizing burner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for preventing dripping and leakage of fuel even in a vaporizing burner in which a rotary vaporizing tube is vertically provided in a combustion tube.
The present invention relates to a refueling device that can increase or decrease its supply amount over a wide range.

A rotary vaporizing tube is provided vertically within the combustion tube, a fuel diffuser that rotates together with the rotary vaporizing tube is provided within the rotary vaporizing tube, and the tip end of the fuel supply pipe is faced diagonally upward at a position close to the circumference of the fuel diffuser. A vaporizing burner in which fuel sent from the tip of a fuel supply pipe is diffused and transferred into a rotating vaporizing cylinder on the circumferential surface of a rotating fuel diffuser is known as described in Japanese Utility Model Application Publication No. 133834/1983, which was filed before the present application. be.

By the way, when refueling in a conventional vaporizing burner of this type, there are various factors such as the gap between the tip of the oil supply pipe and the tip of the oil supply pipe that is spread around the circumferential surface of the fuel diffuser, the viscosity of the oil, its delivery pressure, the inclination angle and rotation speed of the circumferential surface of the fuel diffuser, etc. Depending on the conditions, there is an appropriate value for the amount of fuel supplied.

However, the applicable range for increasing or decreasing the amount of fuel supplied with respect to a certain gap is extremely limited (if the amount of fuel supplied is less than the applicable range above, a portion of the supplied fuel may be transferred between the oil diffuser and the fuel supply pipe). If the fuel supply pipe drips accidentally from gaps or leaks along the outer surface of the fuel supply pipe, and even if you try to increase the amount of fuel supplied beyond the above applicable range, Since the degree of opening is limited and it is difficult to do so, the range in which the amount of burnout can be adjusted in conventional vaporizing burners is extremely narrow (this causes various inconveniences in use). was the actual situation.

In view of the above, the present invention forms the tip end of the fuel supply pipe in a mountain shape even when the tip end of the fuel supply pipe faces obliquely upward in a position close to the circumferential surface of the fuel oil diffuser. The bent lower half of the curve is formed in an extremely narrow gap with the outer circumferential surface of the fuel diffuser, and the bent upper half is formed in a wide gap with the outer circumferential surface of the fuel diffuser. without changing the correspondence with the tube tip orifice.
The amount of fuel supplied in the gap between the outer peripheral surface of the fuel diffuser and the tip of the fuel supply pipe can be adapted to a wide range of conditions, from a small amount to a large amount, thereby making it possible to adjust the amount of combustion over a wide range. The present invention is aimed at obtaining a burner, and the configuration of the present invention will be described below with reference to a preferred embodiment shown in the drawings.

Reference numeral 1 denotes a combustion tube with an open tip, and 2 an outer tube that covers the outer periphery of the combustion tube.A gas chamber 3 is formed between the combustion tube 1 and the outer tube 2, and almost the entire barrel of the combustion tube 1 is filled with gas. A large number of fumaroles 4 are drilled.

Reference numeral 5 denotes a rotary carburetor with a closed top and an open base. It is fixedly attached to the tip of a rotating shaft 7 inserted vertically with a nut 8.

Reference numeral 9 denotes a blower tube, and the tip side of the blower tube 9 is opened so as to be inserted deeply into the rotary vaporizer tube 5, and the base end thereof is communicated with the blower chamber 6.

The base end circumferential wall of the rotary vaporizing cylinder 5 is formed in an outwardly projecting shape, and a fuel scattering gap 12 is formed between the projecting part 10 and the mixed cylinder 11.

An air mixture passage 13 is formed between the rotary vaporizing cylinder 5 and the blower cylinder 9, and the air mixture passage 13 is communicated with the gas chamber 3 via a passage 14.

Reference numeral 15 denotes a fumarole chamber that communicates with the blowing chamber 6;
A blowhole 16 is formed in the lower part of the blower, and the combustion tube 1 is cooled by the wind ejected from the blowhole 16.

Reference numeral 17 denotes a rotational gap formed between the blow chamber 15 and the mixed cylinder 11.

An inverted conical fuel diffuser 1 is disposed at the top of the rotary carburetor 5.
8 is fixed to the fuel oil diffuser 18, and the distal end 19a of the fuel supply pipe 19 is bent diagonally upward to face a position close to the outer circumferential surface of the fuel oil diffuser 18.

That is, the oil supply pipe 19 is piped vertically from the blowing chamber 6 side into the rotary vaporizer cylinder 5 in a direction substantially parallel to its rotation axis 7, and its tip 19a is oriented diagonally toward the outer circumferential surface of the fuel oil diffuser 18. It is bent upward, and the tip end is the fuel diffuser 1.
8 and is diagonally upwardly and closely opposed to the outer circumferential surface of 8.

The entire tip end of the fuel supply pipe 19 is formed into a mountain shape, and the gap between the bent lower half 19b of the tip port and the outer peripheral surface of the fuel oil diffuser 18 is formed to be extremely narrow. The upper half portion 19b is formed to have a wide gap with the outer peripheral surface of the fuel oil diffuser 18, and between the outer peripheral surface of the fuel diffuser 18 and the tip end of the oil supply pipe 19, a refueling gap 20 with different widths is formed.

The refueling gap 20 is set so that its narrowest portion corresponds to the minimum value of the fuel supply amount, and the entire tip end including its widest portion accommodates the maximum value of the fuel supply amount.

Note that the tip portion 19a of the oil supply pipe 19 may be press-molded so that the cross section thereof is rectangular.

21 is a spark plug. Next, the operation of the present invention will be explained.

Now, when starting the burner, if forced air is blown from the blow chamber 6 toward the blow tube 9 and the rotary vaporizer tube 5 is rotated at high speed, fuel is supplied from the oil supply pipe 19. The fuel oil is sent out from the tip port onto the outer circumferential surface of the fuel oil diffuser 18, and as the fuel oil diffuser 18 rotates at high speed, it becomes an even film and is sprayed into the rotary vaporizing tube 5. The fuel is ejected into the combustion tube 1, and the spark plug 2
The spark caused by No. 1 causes ignition and raw combustion occurs.

When raw combustion occurs in the combustion tube 1, the amount of combustion heats the rotary vaporization tube 5 to a high temperature, and the supplied fuel rapidly evaporates and vaporizes as described above, and mixes with the air blown from the blower tube 9. The gas is stirred and mixed in the air passage 13 to become hot gas, which is then pressurized and stored in the gas chamber 3 through the passage 14, and is injected into the combustion tube 1 from the injection hole 4 at a constant pressure for combustion. Inside the combustion chamber, the state of raw combustion shifts to the state of vaporized combustion, and thereafter the state of vaporized combustion is maintained.

By the way, between the outer circumferential surface of the fuel oil diffuser 18 and the tip end of the fuel supply pipe 19, the mountain-shaped bent lower half 19b formed at the tip 19a of the fuel supply pipe 19 is located between the fuel diffuser 18 and the tip end of the fuel supply pipe 19.
The bent upper half 19b is formed in an extremely narrow gap with the outer peripheral surface, and the bent upper half 19b is formed with a wide gap with the outer peripheral surface of the fuel diffuser 18, so that different refueling gaps 20 are formed. Even if the tip end faces diagonally upward with respect to the outer circumferential surface of the fuel oil diffuser 18, when the amount of fuel supplied from the fuel supply pipe 19 is small, it will be exposed to the outer circumferential surface of the fuel oil diffuser 18 through the narrow gap. Then, as the amount of fuel to be supplied increases, the fuel is transferred to a wider gap and is delivered.

Therefore, even if the amount of fuel supplied is adjusted over a wide range from a small amount to a large amount, the refueling gap between the outer circumferential surface of the fuel diffuser 18 and the tip end of the oil supply pipe 19 can be adapted to any of the conditions. There is no problem with fuel dripping or leakage, or any hindrance to the fuel supply.
The amount of combustion can be adjusted over a wide range.

In short, the T-4 combustion tube 1 of the present invention is provided with the rotary vaporization tube 5 in the vertical direction, and the rotary vaporization tube 5 is provided with the fuel diffuser 18 that rotates together with the rotary vaporization tube 5, and the fuel diffuser 18 is positioned close to the circumferential surface of the fuel diffuser 18. Even if the tip end of the fuel supply pipe 19 faces diagonally upward, the tip end of the fuel supply pipe 19 (formed in a mountainous shape, and the bent lower half 19b of the tip end is not connected to the outer circumferential surface of the fuel diffuser 18). Since the bent upper half 19bGtJ is formed with an extremely narrow gap and a wide gap with the outer circumferential surface of the fuel oil diffuser 18, even if the tip of the fuel supply pipe 19 faces diagonally upward, the outer circumference of the fuel oil diffuser 18 Even when refueling is performed while facing the surface, the gap between the circumferential surface of the fuel diffuser 18 and the refueling pipe 19 is maintained without changing the relationship between the outer circumferential surface of the fuel diffuser 18 and the tip end of the refueling pipe 19. can be adapted to a wide range of situations where the amount of hot oil supplied ranges from a small amount to a large amount, and as a result, even with a vertical vaporizing burner, the combustion amount can be adjusted over a wide range. This has the effect of completely eliminating dripping or leakage accidents and ensuring safe continuation of vaporization and combustion.

[Brief explanation of the drawing]

The drawings show one embodiment of the device of the present invention.
The figure is a longitudinal sectional front view with a part cut away, FIG. 2 is a diffused longitudinal sectional front view of the main part, and FIG. 3 is a perspective view showing a part of the oil supply pipe. DESCRIPTION OF SYMBOLS 1... Combustion tube, 5... Rotating vaporization tube, 18... Fuel diffuser, 19... Oil supply pipe, 19b... Bent lower half part,
19b'...Bent upper half.

Claims (1)

[Claims] 1. A rotary vaporizing tube is provided vertically within the combustion tube, a fuel diffuser is provided inside the rotary vaporizing tube and rotates together with the rotary vaporizing tube, and the tip end of the fuel supply pipe is positioned close to the circumferential surface of the fuel diffuser so as to face diagonally upward. In this, the tip of the fuel supply pipe is formed in a mountain shape, and the bent lower half of the tip is formed in an extremely narrow gap with the outer peripheral surface of the fuel diffuser, and the bent upper half of the tip is formed in a very narrow gap between the outer peripheral surface of the fuel diffuser and the fuel diffuser. A lubricating device for a vaporizing burner characterized by being formed with a wide gap between the outer peripheral surface and the outer peripheral surface.