JPS5811316A - Evaporation burner - Google Patents

Abstract

PURPOSE:To obtain a stabilized combustion state whose injection pressure of gas is equalized extending over the whole circumference of an annular flame spouting duct, by providing gas spouting openings on a flame spouting outer wall at prescribed intervals. CONSTITUTION:Fuel-air mixture gas generated within a mixture gas duct 10 is entered into a gas chamber 11 in a revolving state from a gas agitating cylinder 5 and acumulated in a gas accumulation chamber 15. The fuel-air mixture gas having equalized pressure and accumulated within the gas accumulation chamber 15 is spouted out into an annular flame spouting duct 14 from a great number of holes 16, which is blown against the fuel-air mixture gas passing through the annular flame spouting duct 14 in a crossing manner for inhibition of the fuel-air mixture gas, as a flame spouting outer wall 13 is provided with a great number of the gas spouting holes at certain intervals. Thus, swirling actions are occurred within the annular flame spouting duct 14 at intervals, through which a spouting speed of the fuel-air mixture gas can be slowed down, and even if a phenomenon of a pulsation is occurred within the gas chamber 11 stabilized flames having about identical length are obtainable from the annular flame spouting duct 14 extending over its whole circumference by equalizing pressure of spouting flames from the annular flame spouting duct 14 extending over the whole circumference.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vaporizing burner that evaporates and burns kerosene or other liquid fuel from an initial half-burned state.

Kerosene and other liquid fuels are atomized by the rotating action of the vaporizer with the tip closed and the base open, and semi-combusted in the combustion cylinder.Then, the vaporized material is heated with the heat of combustion, and then supplied into the vaporizer. The fuel is vaporized and mixed with air at the same time to form a mixed gas, which is forced into the gas chamber provided at the open base end of the vaporizer. In the case of a vaporizing burner in which the fume is twisted, if the fume pressure of the mixed gas is low, it will ignite in the gas chamber and cause flashback combustion, making it impossible to use the burner as a vaporizing burner. Perhaps because it cannot be combusted, the mixed gas generated inside the vaporized body is pressurized into the gas chamber while the amount of generated gas is constantly changing and appears in a swirling state due to the rotational action of the vaporized body.
After hitting the surrounding gas chamber wall, it turns around and ejects fumarole from the narrow annular flame path! Because of this, a pulsation phenomenon occurs in the gas chamber due to fluctuations in gas pressure, and the jet pressure is not equalized around the entire circumference of the annular smoke path.As a result, the vaporized combustion flame becomes wavy with different lengths. The firing condition in the furnace fluctuates and is not stable.

In view of the foregoing, the present invention has been proposed to provide a combustion tube with the proximal end on the outside of the smoke inner wall provided on the open proximal side of the vaporized body, even if the initial raw combustion state is evaporated and combusted. An annular smoke channel K is provided between the inner flame wall and the outer wall of the smoke outlet, with the base end communicating with the gas chamber, and between the combustion cylinder and the outer wall of the smoke outlet. A stopper-like gas storage chamber connected to the gas chamber on the base end side is formed, and a gas mixture stored in the gas storage chamber is formed on the outer wall of the flame forming the annular flame path. A large number of gas ejection holes are bored at intervals to emit gas into the annular flame path, and the gas is emitted through the annular flame path from the gas chamber into the tP cylinder with an irregular pressure state while taking on an annular shape. The mixed gas is suppressed by spraying the mixed gas in a cross-shaped manner at intervals from the gas storage chamber, and actively generates a vortex phenomenon of hot gas at intervals in the annular smoke path. Equalizes the smoke pressure from all stations of the annular smoke path, and at the same time softens the jet speed to stabilize the vaporizing combustion flame, which is quiet and has a substantially constant wave shape over the entire circumference. The present invention is intended to provide a vaporizing burner that can emit flame under certain conditions, and the structure of the vaporizing burner according to the present invention will be described below with reference to preferred embodiments shown in the accompanying drawings. .

In Figure 1, 1 has the tip open and the bottom side is the ventilation chamber 2.
Bottomed connected to? A rotating shaft 3 is provided in the center of the combustion cylinder 1 and inserted into the combustion cylinder 1 from the ventilation chamber 211. A cylindrical vaporizer 4 with an open side is fixedly placed over the rotating shaft 3. And on the proximal open side of the vaporized body 4,
When the gas stirring tube 5 is mounted with a fuel scattering gap 6, the smoke inner wall 7 formed on the outer circumferential side of the gas stirring tube 5 is inclined upward toward the open end side of the combustion tube 1. hand,
It is formed at the fuel splashing end 8 at its distal end. 9 is f furnace tube 1
It is a blower tube with open ends attached to the combustion tube 1 so as to be inserted deeply into the vaporizer 4 from the bottom side of the tube.The base end side of the blower tube 9 is connected to the blower chamber 2, and the tip end Vaporized body 4
It is opened inward to form a mixed gas passage 10 between the inner circumferential side of the vaporizer 4 and the outer circumferential side of the blower tube 9 .

Reference numeral 11 denotes a gas chamber formed between the bottom side of the combustion tube 1 and the open side of the vaporized body 4, and a mixed gas passage 1Q is connected to this gas chamber 11. The upper open side of the gas chamber 11 formed as described above is covered at its peripheral edge with a horizontal wall plate 12 attached to the combustion tube 1, and the central opening of this wall plate 12 has a smoke inner wall. An annular flame path 14 whose base end communicates with the gas chamber 11 is formed between the flame inner wall 7 and the flame outer wall 13 by integrally molding the flame outer wall 13 which is bent inwardly along the line T. form.

The interior covered by the combustion tube 1, the wall plate 12, and the flame outer wall 13 serves as a gas storage chamber 15, which is connected to the gas chamber 11 on the base end side. The flame outer wall 13 formed as described above has a large number of gas jet holes 16 perforated in a line or a plurality of rows at approximately equal intervals, so that the annular flame passage 14 is routed from the gas chamber 11 into the inside of the combustion tube 1. On the other hand, the mixed gas stored in the gas storage chamber 15 is injected in a cross-shaped manner from a large number of gas ejection holes 16 against the mixed gas to be emitted. suppressing the gas mixture and causing a vortex phenomenon of the mixed gas at intervals in the annular combustion path 14, equalizing the flame pressure from the entire circumference of the annular combustion path 14, and at the same time softening the ejection speed. A 18-liter vaporized flame is produced that is quiet and has a substantially constant wave length over the entire circumference.

Reference numeral 17 denotes an inverted conical fuel diffuser attached to the inner surface of the top end of the vaporizer 4 via the rotating shaft 3;
7 shows the tip of the oil supply pipe 1B. It's just a spark plug.

The vaporizing burner shown in FIG. 2 is on the other side of FIG.
In this vaporizing burner, the proximal open side wall of the vaporizing body A is integrally curved and expanded toward the open end side of the combustion tube 1, and a curved expanded portion is formed on the smoke inner wall γ. The outer circumferential end of the inner wall of the smoke outlet becomes a fuel oil scattering end 8'.

Therefore, if the vaporizer 4 is formed as in the embodiment shown in FIG. 2, the gas stirring cylinder 5 as in the vaporizer burner shown in FIG. IX1 can be omitted, thereby simplifying the structure of the vaporizer burner.

Then, if the base end side of the wall plate 12' is further bent into a concave shape to form a concave portion in the undissolved oil reservoir portion 20, the building 2
The vaporizing burner shown in the figure can be used immediately as a vertical vaporizing burner.

Next, the operation of the present invention will be explained.

In FIG. 1, to start the burner, the rotating shaft 3 rotates the vaporized body 4 at high speed, forcing forced air to flow into the vaporized body 4 from the ventilation chamber 2, and at the same time, the supply of liquid fuel from the fuel supply pipe 18 is started. For example, after the fuel is supplied from the tip of the fuel supply pipe 18 to the surface of the fuel diffuser 17, it is diffused and transferred due to its rotational action and reaches the inner surface of the vaporized body 4. Thereafter, the fuel sequentially flows through the mixture gas passage 10 and the fuel diffuser 17. The fuel passes through the fuel scattering gap 6 and is scattered from the fuel scattering end 8 to the inner circumferential surface of the PN# cylinder 1, so that when it is ignited by the ignition plug 19, bio-incineration occurs within the combustion furnace tube 1. When raw combustion occurs in the combustion furnace tube 1, the vaporized body 4 is heated by the flame, and the vaporized body 4 rapidly reaches the vaporization temperature of the fuel. Therefore, the fuel supplied to the inner circumferential surface of the top end of the vaporized body 4 is quickly evaporated and vaporized while being diffused and transferred along the inner circumferential surface of the vaporized body 4 due to the rotational centrifugal action, and mixed with the flowing forced wind. It becomes gas. In this way, the gas generated in the mixed gas passage 10 enters the gas chamber 11 while exhibiting a swirling state from the stirring cylinder 5, then hits the gas chamber wall, turns around, and is vigorously ejected from the entire circumference of the annular smoke passage 14. At the same time, the gas is stored in the gas storage chamber 15. However, since the outer wall 13 of the eruption flame is provided with a large number of gas ejection holes 16 at intervals, the mixed gas of equal pressure stored in the gas storage chamber 15 is discharged from the annular eruption hole 16 through the gas ejection holes 16. Road 14 (
Against the mixed gas that blows out and circulates in the annular smoke path 14 (
It is sprayed crosswise and suppressed. As a result, a vortex of the mixed gas is generated at intervals in the annular smoke channel 14 due to the injection action, and when the jetting speed of the mixed gas is softened, the gas inside the gas chamber 11 is Even if a pulsation phenomenon occurs, the jet pressure from the entire circumference of the annular flame passage 14 is equalized, and a stable twisted flame of approximately the same length is ejected from the entire circumference of the annular flame passage 14 in a wave shape. It can be set on fire.

In short, the present invention atomizes liquid fuel and makes it live in a raw furnace,
After that, the atomized liquid fuel is evaporated by the heat of the twisted part,
Even in the case of a vaporizing burner that simultaneously mixes with air to generate hot gas and generates a qR flame from the gas chamber 11 through the annular combustion path 14, the outer peripheral side of the annular combustion path 14 may be used. When a stopper gas storage chamber 15 is formed to connect with the gas chamber 11, the moisture gas stored in the gas storage chamber 15 is formed into an annular eruption on the outside wall 13 forming the republican annular flame path 14. Since the gas ejection holes 16 that emit gas in a cross-shaped manner into the passage 14 are bored at intervals, the gas ejection holes 16 which generate a mixture of gas at equal pressure stored in the gas storage chamber 15 can be connected to the annular ejection path. 14, the hot gas flowing under irregular pressure inside the annular flame path 14 is injected crosswise and suppressed, and a vortex phenomenon occurs at intervals, thereby suppressing the hot gas. The gas ejection speed is softened to emit smoke in a quiet state, and at the same time, the eruption pressure is equalized over the entire circumference, thereby creating a stable flame with approximately the same length from the entire circumference of the annular flame path 14. It is possible to emit a wavy combustion flame, and as a result, even if a pulsation phenomenon occurs in the mixed gas inside the gas chamber 11, quiet vaporization combustion can be continued stably for a long period of time. This has the effect of preventing backfire combustion even in small-volume combustion furnaces.

[Brief explanation of drawings]

The inner surface shows an embodiment of the vaporizing burner according to the present invention, and FIG. 1 is a partially cutaway vertical front view, and FIG. 2 is a partially cutaway longitudinal front view showing another embodiment of the vaporizing burner. It is a diagram. 1...P brick, 4...vaporized body, N/flame inner wall, 11
... Gas chamber, 13... Flame outer wall, 14... Annular flame path, 15... Gas storage chamber,] 6... Gas vent patent applicant Dowa Co., Ltd.

Claims (1)

[Claims] Bottomed fuel with an open tip! A vaporizer is rotatably disposed in the cylinder with the tip closed and the open base side as the inner wall of the flame facing the open side of the tip of the cylinder, so that the gas can flow between the Confucian stove and the open base side In the case where a chamber is provided, an outer wall with a proximal end attached to the P burner tube is installed along the outside of the inner wall of the front distributing flame, and a base end wall is installed between the inner wall of the eruption flame and the outer wall of the eruption flame. An annular flame path K that communicates with the gas chamber. Also, between the P# cylinder and the outer wall of the flame, a gas storage chamber is formed at the base end connected to the gas chamber, and a gas storage chamber is formed on the outer wall of the flame that forms the annular smoke path. A vaporizing burner characterized in that a large number of gas ejection holes are bored at intervals to cause the mixed gas stored in the air chamber to emit gas into an annular ejection path in a cross-shaped manner.