JPS5950006B2 - vaporizing burner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vaporizing burner that quickly evaporates and burns fuel from a semi-combusted state.

Previously, the present applicant installed a rotary vaporizer in a combustion cylinder, atomized and dispersed the fuel supplied with forced air into the rotary vaporizer, mainly burned the fuel in the combustion cylinder, and then used the combustion flame to atomize and scatter the fuel. The rotary vaporizer is heated to a high temperature to evaporate the fuel, which is mixed with forced air to form a mixture of gases, and this warm gas is stored in a gas chamber installed in the combustion cylinder to keep it constant. We have developed a vaporizing burner that uses pressure to inject fuel into a combustion cylinder for vaporization and combustion, and its implementation has shown considerable effects, including the ability to completely burn fuel as efficiently as gaseous fuel.

By the way, in the above-mentioned vaporizing burner, evaporated fuel gas and forced air are mixed in the air mixture path formed between the outer periphery of the blow tube inserted deeply into the rotary vaporizer and the inner surface of the rotary vaporizer. However, since the hot air path is short, the mixed gas tends to be mixed unevenly, which has the disadvantage that vaporization and combustion may not be stable.

In view of the above, the present invention forms a moisture path in a rotary vaporizing body, between its inner circumferential surface and a blower tube deeply interposed in the center thereof, in a meandering shape sequentially from the outside to the inside and leading to the gas chamber. As a result, the air mixture path inside the rotary vaporizer is lengthened to extend the mixing time, and the hot air path is successively narrowed to increase the gas concentration, thereby creating a uniform air mixture at all times and increasing the vaporization. DESCRIPTION OF THE PREFERRED EMBODIMENTS An attempt has been made to provide a vaporizing burner capable of stabilizing combustion, and the configuration of the present invention will be described below with reference to preferred embodiments shown in the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a combustion tube with an open top end and a closed bottom. A rotating shaft 2, which is inserted into the combustion tube 1 from the center of the bottom surface, has a closed tip and a base end attached to the tip of the rotating shaft 2. An open rotary vaporizer 3 is mounted so as to cover the rotary shaft 2.

Reference numeral 4 denotes a blower tube, and the blower tube 4 is located in the center surrounding the rotating shaft 2 of the rotary vaporizer 3 and is attached to the rotary vaporizer 3 by a mounting arm 5, and its base end is connected to the combustion chamber. It communicates with a blowing chamber 6 adjacent to the bottom of the cylinder 1, and its tip faces the tip inside the rotary vaporizer 3.

The tip of the blow tube 4 is greatly curved outward and extended downward, and an open hot air path forming tube 7 is formed at the lower end, and the blow tube 4 and the hot air path forming tube 7 are connected to each other. A hot air path forming cylinder 8 with an open upper end is interposed between the two, and a lower end of the hot air path forming cylinder 8 is extended so as to project outward.
It is integrally attached to the base end side of the rotary vaporizer 3 so that a fuel scattering gap 9 is formed between the extended end and the base end of the rotary vaporizer 3.

Furthermore, the rotary vaporizer 3 is
A serpentine air mixture passage 10 descends from the tip of the inside along the inner circumferential surface of the blower tube 4, rises between the two hot air passage forming tubes 7 and 8, and descends along the outer circumferential surface of the blower tube 4. It is formed.

Reference numeral 11 denotes a gas chamber forming wall, which is fixed to the bottom surface of the combustion tube 1, and a gas chamber is formed between it and the outwardly extending portion of the hot air path forming tube 8. 12 are formed.

The gas chamber 12 communicates with the inner end of the meandering air mixture path 10.

Further, the inner rising portion 11a of the gas chamber forming wall 11 is overlapped with the base end portion of the blower tube 4 with a rotational gap, and the blower chamber 6 and the blower tube 4 are communicated with each other. An annular flame nozzle 13 that opens obliquely upward within the combustion tube 1 is formed on the outer peripheral portion of the upper surface.

At the center of the tip inside the rotary vaporizer 3, an inverted cone-shaped fuel diffuser 14 is fixedly attached to the rotating shaft 2 via a mounting member 15, corresponding to the tip of the blow tube 4, and the fuel diffuser 14 is fixed to the rotary shaft 2 via a mounting member 15. body 14
A fuel supply diffusion section 17 is formed on the outer circumferential surface of the fuel supply pipe 16 so that the tip of the fuel supply pipe 16 faces closely thereto.

18 is an ignition plug provided inside the combustion tube 1.

What is shown in FIG. 2 is another example of the above embodiment.

In this embodiment, a large number of flame holes 13' are bored on the outer peripheral surface of the gas chamber 12, and a gas chamber forming wall 11
It is the same as the one shown in FIG. 1 except that the inner rising portion 11a of the air blower tube 4 is made higher and the blower tube 4 is made shorter.

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

Now, when starting the burner, forced air is sent from the blower chamber 6 to the blower tube 4 to rotate the rotary vaporizer 3 at high speed, and then fuel is supplied from the oil supply pipe 16 to the fuel supply diffusion section 17 inside the rotary vaporizer 3. When supplied, the fuel is subjected to centrifugal action on the outer circumferential surface of the fuel oil diffuser 14 and is dispersed into fine particles, and the fuel is dispersed into the rotary vaporizer 3 along with forced air blown from the blower tube 4 along the inner circumferential surface of the rotary vaporizer 3. The fuel is sprayed into the combustion cylinder 1 from the fuel scattering gap 9 on the base end side of the fuel oil.

If the spark plug 18 is used to ignite the flame, raw combustion will occur within the combustion tube 1.

When raw combustion occurs in the combustion tube 1 in this way, the rotary vaporizer 3 is rapidly heated to the evaporation temperature of the fuel by the combustion flame, so that the fuel that is subsequently supplied into the rotary vaporizer 3 is not evaporated or vaporized. In the process of passing through the air mixture path 10, this mixed air is mixed with forced air, becomes air mixture gas, and is stored in the gas chamber 12.

The mixed gas stored in the gas chamber 12 is ejected into the combustion tube 1 from the flame nozzle 13, and vaporization combustion is continued within the combustion tube 1.

By the way, since the air mixture path 10 in the rotary vaporizer 3 has a meandering shape and its path is long, the evaporated gas of the fuel flows through the air mixture path 1.
0, the fuel is sufficiently mixed with the forced wind and a uniform gas mixture is generated, and the fuel sprayed in fine particles in the fuel supply diffusion section 17 and the forced wind are mixed from the outside with a large diameter. Since the gas flows toward the inside with a smaller diameter and reaches the gas chamber 12, the gas concentration is increased during this time, and a more uniform mixed gas is generated, thereby stabilizing vaporization and combustion.

Also in the embodiment shown in FIG. 2, hot gas is ejected at a constant pressure into the combustion tube 1 from a large number of flame holes 13' drilled in the outer peripheral surface of the gas chamber 12, and vaporized and burned. In other respects, the operation is the same as that shown in FIG.

In short, the present invention provides a rotary vaporizer 3 with a closed tip and an open base end in the combustion tube 1, and the rotary vaporizer 3 is placed in the center of the rotary vaporizer 3, with the base end facing the bottom side of the combustion tube 1. A blower cylinder 4 is provided which communicates with the adjacent blower chamber 6 and rotates integrally with the rotary vaporizer 3 with its tip facing the tip inside the rotary vaporizer 3 to supply and diffuse fuel to the center of the tip inside the rotary vaporizer 3. 17 is provided, and a gas chamber 12 is formed in the combustion tube 1 in which humid gas is stored and ejected at a constant pressure, and between the inner circumferential surface of the rotary vaporizer 3 and the blow tube 4, Since the hot air path 10 leading to the gas chamber 12 is formed in a meandering manner from the outside to the inside, the air mixture path 10 in the rotary vaporizer 3 is lengthened to extend the mixing time, and the air mixture path 10 It is possible to increase the gas concentration by sequentially narrowing the rotary vaporizer 3, thereby constantly generating a uniform gas mixture, and to stabilize the vaporization combustion. Produces lasting effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the vaporizing burner according to the present invention, in which FIG. 1 is a partially cutaway longitudinal sectional front view, and FIG. 2 is a partially cutaway longitudinal sectional front view of another example. DESCRIPTION OF SYMBOLS 1... Combustion tube, 3... Rotary vaporizer, 4... Blow tube, 6... Blow chamber, 10... Air mixture path, 12... Gas chamber, 17... Fuel supply Diffusion part.

Claims (1)

[Claims] 1. A rotary vaporizer with a closed tip and an open base end is provided in the combustion cylinder, and the central part of the rotary vaporizer communicates with a blowing chamber adjacent to the base end or the bottom side of the combustion cylinder, In addition, a blower tube is provided whose tip faces the tip of the rotary vaporizer and rotates integrally with the rotary vaporizer, a fuel supply diffusion section is provided at the center of the tip inside the rotary vaporizer, and a mixture gas is stored in the combustion tube. A gas chamber is formed in which the gas is ejected at a constant pressure, and an air mixture path is formed between the inner circumferential surface of the rotary vaporizer and the blow tube, leading to the gas chamber in a meandering manner from the outside to the inside. A vaporizing burner characterized by: