JPS62158909A - Gasification burner - Google Patents

Abstract

PURPOSE:To prevent a flame from being lifted and provide a stable combustion of blue flame by a method wherein an upward-directed gas mixing promoting cylinder and a downward-directed gas mixing promoting cylinder are arranged between an aeration tube and injection holes in a gasification burner for use in injecting mixture gas from several injection holes in a gas chamber. CONSTITUTION:An upwardly-directed mixing promoting cylinder 17 and a downwardly-directed mixing promoting cylinder 18 are arranged within a gas chamber 3 outside a surface gas pipe 16 and inside gas injection holes 5, thereby a mixture gas bending passage 19 is formed by both means 17 and 18. With this arrangement, mixture gas 13 gasified in the gasification cylinder 6 passes through the aeration pipe 16 and also passes through the bent gas passage 19, so that the mixing and agitation is promoted and at the same time a flow speed of the gas is made uniform. Therefore, the gas is fed into the gasification chamber 3 under a uniform condition and thus a lifting of the flame can be prevented and a stable blue flame combustion can always be attained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a vaporizing burner that evenly burns a mixed gas generated in a vaporizing cylinder through a large number of gas ejection holes in a gas chamber.

Conventional technology In the past, a gas chamber equipped with a large number of gas ejection holes was arranged in a bottomed cylindrical combustion cylinder installed next to the blow chamber, and an annular gas chamber was installed between the base end open side and the gas chamber. The vaporization cylinder is rotatably disposed so as to form a fumarole passage, and the annular fume passage is communicated with the blowing chamber by a number of vent pipes penetrating the gas chamber. Before application, for example, JP-A-57
It was developed by the present applicant and is well known as described in Japanese Patent No. 73306.

Problems to be Solved by the Invention Incidentally, in the above-mentioned known vaporizing burner, a large number of vent pipes are disposed on the vaporizing cylinder side of the gas chamber, which pass through the vaporizing cylinder side. There is a large difference in the flow rate of the mixture gas between the part with the vent pipe and the part without it, and as a result, the state of fumarole combustion from the gas nozzle of the combustion plate becomes partially lifted, or Problems such as mixing of red flame into the blue flame arose.

Therefore, in the first aspect of the present invention, even if a large number of ventilation pipes penetrating the gas chamber are installed, an annular upward mixed cylinder is located inside the gas chamber outside the ventilation pipes and inside the gas nozzle. By arranging a mixed gas passage formed by a downwardly directed mixed gas cylinder, it is possible to further promote the mixing of the mixed gas that is pressurized into the gas chamber from the vaporizer cylinder, and at the same time to prevent unevenness in the flow velocity of the mixed gas. To provide a vaporizing burner which has the purpose of completely stabilizing fumarole combustion from a large number of gas ejection holes by eliminating generation and making the flow velocity substantially uniform, and the second invention also has the above-mentioned In addition to the structure, an annular air-fuel mixture gas deceleration part is provided between the projecting edge and the combustion plate, with the free end of the downward-facing air-fuel mixture promoting tube hanging down in the gas chamber extending outward, and the edge extending outward. In addition to the purpose of the first invention, the present invention is to slow down the jetting speed of the air-fuel mixture jetted from the gas jetting hole located closest to the carburetor cylinder, so that the vaporized combustion flame is blown away by the combustion air jetted from the jetting passage. The purpose of the present invention is to provide a vaporization bar 7 that can prevent such occurrences and continue stable vaporization combustion, and furthermore, in the third invention, in addition to the above-mentioned configuration, a gas chamber from the cylinder wall of the combustion tube is provided. In addition to the objectives of the first and second inventions, by arranging an air-fuel mixture gas deceleration ring extending toward the center, the speed of gas ejection from the gas ejection holes of the outermost combustion disk is also slowed down. The above-mentioned problem has been solved by providing a vaporizing burner that has the purpose of making fumarole combustion more uniform over the entire surface of the combustion disk.

Means for Solving the Problems Therefore, the technical problem of the present invention is to easily and reliably equalize the flow rate of the mixed gas in the gas chamber, and to reduce the flow rate of the gas mixture in the gas chamber and the gas outlet closest to the vaporization tube. The purpose is to slow down the ejection speed of the mixed gas ejected from the gas ejection holes on the farthest side, and to stably spread a uniform vaporized combustion flame over the entire surface of the combustion disk.

In order to solve this technical problem, the configuration of the first invention was improved by installing a combustion disk in which a large number of gas ejection holes were perforated upward in a bottomed cylindrical combustion tube adjacent to a blowing chamber. A gas chamber is arranged between the combustion cylinder and the combustion plate, and the open base side of the combustion cylinder communicates with the gas chamber, and an annular blow passage is formed between the open base side and the gas chamber. The vaporizing cylinder is disposed so as to be fully rotatable, and the annular jet passage is connected to the blowing chamber through a number of vent pipes penetrating the gas chamber, and the gas blowing hole is located outside the vent pipes and connected to the blowing chamber. Inside the gas chamber on the inner side, there are arranged at intervals an upward air-fuel mixture promoting tube that stands upward from the bottom wall of the combustion tube, and a downward air-fuel mixture promoting tube that hangs downward from the inside of the combustion disk. , a vaporizing burner characterized in that a bent air mixture gas passage is provided between the upward air mixture promoting cylinder and the downward air mixture promoting cylinder; A combustion plate with a large number of gas ejection holes perforated upward is installed inside the bottom cylindrical combustion cylinder, and a gas chamber is arranged between the combustion cylinder and the combustion plate. The vaporizing cylinder is rotatably disposed so that the side communicates with the gas chamber and an annular fumarole passage is formed between the open base side and the gas chamber, and the annular fume passage passes through the gas chamber. The gas chamber is connected to the ventilation chamber by a large number of ventilation pipes, and the gas chamber, which is outside the ventilation pipes and inside the gas nozzle, is provided with an upwardly facing pipe that stands upward from the bottom wall of the combustion tube. An air mixture promotion tube and a downward air mixture promotion tube that hangs downward from the inside of the combustion disk are arranged at intervals, and the air mixture gas is bent between the upward air mixture promotion tube and the downward air mixture promotion tube. In addition to providing a passage, the free end side plate of the downward air mixture promoting tube is provided with an outwardly extending overhanging edge, and an annular air mixture gas deceleration portion is provided between the overhanging edge and the combustion disk. A vaporizing burner characterized by having the following features:
Furthermore, in the constituent sound of the third invention, a combustion plate with a large number of gas ejection holes perforated upward is laid in a bottomed cylindrical combustion cylinder installed next to the ventilation chamber O, and a combustion plate is installed between the combustion cylinder and the combustion plate. The entire gas chamber is arranged in the combustion cylinder, and the open base side of the combustion cylinder communicates with the gas chamber, and the carburetor cylinder is freely rotatable so that an annular jet passage is formed between the open base side and the gas chamber. and in which the annular fumarole passage is connected to the blowing chamber through a number of vent pipes passing through the gas chamber, and the gas chamber is located outside the vent pipes and inside the gas ejection holes. , an upward air-fuel mixture promoting tube that stands upward from the bottom wall side of the combustion tube and a downward air-fuel mixture promoting tube that hangs downward from the inside of the combustion disk are arranged at intervals, and the upward air-fuel mixture promoting tube and A bent air mixture gas passage is provided between the downward air mixture promoting cylinder, and an outwardly extending protruding edge is provided on the protruding end hook of the downward air mixture promoting cylinder. The vaporizer is characterized in that an annular mixture gas deceleration section is disposed between the two, and an annular mixture gas deceleration ring extending toward the center is disposed in the gas chamber from the cylindrical wall of the combustion tube. It is a burner.

Made for The above technical means works as follows (see Figure 1).

If you start the burner now, the carburetor 6 will rotate at high speed and combustion air will be blown from the ventilation chamber 2 into the carburetor 6.
Furthermore, the bent air mixture gas passage 19? ! - The gas is press-fitted into the gas chamber 3 through the gas chamber 3, and is further injected into the combustion cylinder 1 through a large number of gas injection holes 5 from the gas chamber 3. At the same time, combustion air is blown from the ventilation chamber 2 to the annular blowhole passage 15 through a large number of ventilation pipes 16.
Fumes are forced inside.

Under such conditions, if fuel is supplied, the carburetor 6
The fuel is diffused and atomized within the chamber, further atomized by the blowing action of the combustion air blown from the blower chamber 2, and then sprayed into the combustion tube 1 from the open end of the vaporization tube 6. The main combustion occurs when ignited.

Then, the entire vaporization cylinder 6 is heated by the raw combustion flame generated, so that the fuel supplied into the vaporization cylinder 6 is evaporated and vaporized, and mixed with the combustion air to become a mixed gas.
This mixed gas is injected and stored in the gully chamber 3, and is also ejected into the combustion tube 1 from a large number of gas ejection holes 5, where it is vaporized and burned. By the way, many ventilation pipes 16...
In the gas chamber 3 on the outer side and on the inner side of the gas outlet 5, there is an upper 1-gas mixture promoting cylinder 17 that stands upward from the bottom wall side of the combustion cylinder 1-k/. Downward air mixture promoting tubes 18 hanging downward from the inside of the combustion disk 4 are arranged at intervals, and a bent air mixture gas passage 19 is formed between the upward air mixture promoting tubes 17 and the downward air mixture promoting tubes 18. Since a large number of ventilation pipes 16...
The mixed gas that has passed through the ventilation pipe 16 at different flow speeds due to the presence of the air-fuel mixture collides with the upward air-fuel mixture promotion cylinder 17 and the downward air-fuel mixture promotion cylinder 18, and the air-fuel mixture gas passes through the bent air-fuel mixture gas passage while its flow speed is reduced. 19, during which time the mixed gas is further agitated, becomes a complete mixed gas, is introduced into the gas chamber 3 at an even flow rate, and is stored therein. Roughly equal distribution speed? As a result, the fumarole combustion is caused to occur, and the fumarole combustion does not become partially lifted, so that stable blue flame combustion can be maintained at all times.

In addition, in the second invention shown in FIGS. 2 to 4, a projecting edge 20 extending outward is provided on the free end side of the downward air mixture promoting cylinder 18, and the projecting edge 20 extends outward. Since the annular mixed gas deceleration part 21 is disposed between the edge 20 and the combustion disk 4,
The mixed gas is stirred and mixed in the bent mixed gas passage 19 and introduced into the gas chamber 3 at a substantially uniform flow rate through a large number of gas ejection holes 5 formed in the combustion plate 4.
When the fuel mixture is burned all at once, the air-fuel mixture gas ejected from the gas injection hole 5 closest to the vaporization tube 6 is slowed down in ejection speed ft, and swirls into the combustion tube 1 through the injection passage 15. It is possible to prevent the vaporization combustion flame from becoming unstable due to being blown away by the injected combustion air, and to continue good vaporization combustion.

Furthermore, in the third aspect of the invention shown in FIG. Since the deceleration ring 22 is provided, the air-fuel mixture that has been introduced into the peripheral wall of the gas chamber 3 through the curved air-fuel mixture gas passage 19 at a substantially uniform flow rate is stopped from receiving the air-fuel mixture and the flow rate is maintained at the same speed. -t is further decelerated to slow down the jetting speed of the mixed gas blowing from the gas jetting hole 5 on the farthest side from the vaporizing cylinder 6, and thus the first
By combining the configurations of the invention and the second invention, the flame combustion from the entire surface of the combustion plate 4 can be made uniform.

Embodiment The present invention will be described with reference to a preferred embodiment shown in the accompanying drawing tTri.

In FIG. 1, reference numeral 1 denotes a bottomed cylindrical combustion tube with an open tip and a central opening gisk on the base and bottom wall side, and a ventilation chamber 2 is adjacent to the bottom wall side of the combustion tube 1. has been done. Combustion tube 1
A gas chamber 3 is formed on the bottom wall side, and a large number of waste ejection holes 5 are bored in a combustion disk 4 forming the upper surface of the gas chamber 3.

6 closes the tip, base 19J? f'' is an open cylindrical vaporizing tube, and the vaporizing tube 6 is placed at the tip of a rotating shaft 7 inserted into the combustion tube 1 from the blowing chamber 2 side, and spread out in a bad condition so as to cover the rotating shaft 7. 8 is a blower tube, and the base end of the blower direction 8 is connected to the blower chamber 2, and the tip side is deeply inserted into the vaporizer tube 6, and the vaporizer tube 6 and the blower tube are connected to each other. A mixed gas passage 9 is formed between the two.

The mixed gas passage 9 communicates with the gas chamber 3 at its base end. A hollow inverted conical fuel diffuser 10 is attached to the tip of the vaporization tube 6, facing the open end of the blower tube 8.
Inside the fuel diffuser 10, the tip of the oil feed pipe 11 is closely opposed. Moreover, on the base end open side of the vaporizer cylinder 6,
An annular air mixture 13 with a fuel scattering end 12 at its tip is integrally installed with a fuel scattering gap 14 in between, and an annular blowhole passage 15 is formed between this air mixture 13 and the gas chamber 3. . The annular fumarole passage 15 is connected to the gas chamber 3.
? Il-Multiple ventilation pipes 16 passing through
It is connected to the ventilation chamber 2 by. Therefore, this annular blowhole passage 15 is a rotation gap of the carburetor cylinder 6, and moreover, combustion air is always circulated from the ventilation chamber 2 to the carburetor cylinder 6.
This is to completely prevent the base end side of the combustion plate 4 from being burnt out.

Outside the plurality of ventilation pipes 16...
In addition, inside the gas chamber 3 inside the perforated gas jet hole 5, there is an upward mixture promoting tube 17 that stands upward from the bottom wall side of the combustion tube 1, and a downward mixture promoting tube 17 that hangs downward from the inside of the combustion plate 4. The entire gap between the air-fuel mixture promoting tubes 18 is widened, and the space between the outer circumferential surface of the upward air-fuel mixture promoting tube 17 and the downward air-fuel mixture promoting tube 18 (
An annular bent gas mixture 19 whose one end is connected to the inside of the vaporization cylinder 6 and the other end is connected to the gas chamber 3, respectively. ll- is provided to promote agitation of the mixed gas and to achieve uniformity of the flow rate.

In the case shown in FIGS. 2 to 4, the jetting speed Wt of the air-fuel mixture jetted from the gas jetting hole 5 located closest to the carburetor cylinder 6 is made slow, and the combustion air jetted from the jetting passage 15 is used. This is an embodiment of the vaporizing burner according to the second invention for achieving the object of being able to continue stable vaporizing combustion without blowing off the vaporizing combustion flame, and in the vaporizing burner of the second invention, Downward air mixture promotion cylinder 18
On the free end side O, an overhanging edge 20 extending slightly outward is provided, and an annular mixed gas deceleration part 21 having a concave shape is arranged between the overhanging edge 20 and the combustion disk 4. Other than the configuration, this configuration is no different from the configuration of the first invention shown in FIG.

In addition, the one shown in FIG.
A third invention for achieving the object of making the fume combustion over the entire surface of the combustion disk 4 more uniform by slowing down the speed of gas ejection from the gas injection hole 5 bored in the combustion disk 4 on the farthest side. In this embodiment of the vaporization burner, in the vaporization burner of the third invention, an annular air-fuel mixture extending horizontally toward the center is provided in the gas chamber 3 from the cylinder wall of the combustion tube 1. Reduction ring 22'! - The configuration other than the provided configuration is completely the same as the configuration of the second invention.

Incidentally, the combustion disk 4i described in the first invention, the second invention, and the third invention, respectively! As a horizontal one, there is a gas chamber 3 on the bottom wall side of the combustion tube 1? Although the gas chamber 3Vi is shown in FIG. Of course, a vaporizing burner formed in the chamber 3 may also be used.

Effects of the Invention In short, the present invention has the above-mentioned technical means and effects, so even if a large number of vent pipes 16 are provided inside the gas chamber 3 and passing through the vent pipes 16, A bent air mixture gas passage 1 is formed in the gas chamber 3 by an upward air mixture promotion tube 17 and a downward air mixture promotion tube 18.
9, the mixed gas is stirred to further improve the state of the mixed gas, and at the same time, it is introduced into the gas chamber 3 while eliminating unevenness in the flow rate and making the flow rate almost uniform, so that the vaporization combustion is in a lifted state. The downward air mixture promotion tube 18 may be able to prevent this from occurring and connect stable blue flame combustion.
The overhanging edge 20 provided on the free end side is extended outward to form an annular mixed gas deceleration section 2 between the overhanging edge 20 and the combustion disk 4.
1. Since all of the above are installed, the ejection speed of the mixed gas emitted from the gas ejection hole 5 located closest to the vaporization tube 6 is slowed down,
It is possible to prevent the vaporized combustion flame from being blown away by the combustion air ejected from the fumarole passage 15 and to allow stable vaporized combustion to continue completely.
An annular mixture gas deceleration ring 22 extending toward the center is installed in the gas chamber 3 from the cylinder wall, so that the mixture gas that is forcefully introduced into the gas chamber 3 is stopped and decelerated. This has the effect of slowing down the gas jetting speed from the gas jetting holes 5 of the outermost combustion disk 4, thereby making the jet combustion more uniform over the entire surface of the combustion disk.

[Brief explanation of drawings]

The drawings show various embodiments of the vaporizing burner according to the present invention, in which FIG. 1 is a partially cutaway longitudinal sectional front view of the vaporizing burner according to the first invention, and FIGS. The vaporizing burner of the invention is shown in Fig. 2, which is a longitudinal sectional front view with a part completely cut away, Fig. 3 is an enlarged longitudinal sectional view of the main part with a part cut away, and Fig. 4 is an arrow direction taken along the line A-A in Fig. 3. 5th enlarged planar section of part of
The figure shows a vaporizing burner according to the third invention,
It is a longitudinal sectional front view with a part cut away. 1... Combustion tube, 2... Blow chamber, 3... Gas chamber, 4
... Combustion disk, 5... Gas nozzle, 6... Vaporizer tube,
15... Fumarole passage, 16-... Ventilation pipe, 17... Upward air mixture promotion cylinder, 18... Downward air mixture promotion cylinder, 19.
...Bending air mixture gas passage, 20...Protruding edge, 21...
Mixed gas deceleration section, 22...Mixed gas deceleration ring

Claims (3)

[Claims] (1) A combustion plate with a large number of gas ejection holes facing upward is installed in a bottomed cylindrical combustion cylinder adjacent to the ventilation chamber, and a gas chamber is arranged between the combustion cylinder and the combustion plate. , a vaporizing cylinder is rotatably disposed within the combustion cylinder so that the open base side communicates with the gas chamber, and an annular jet passage is formed between the open base side and the gas chamber; In the structure in which the annular fumarole passage is connected to the blowing chamber by a large number of vent pipes penetrating the gas chamber, the gas chamber located outside the vent pipes and inside the gas nozzle holes has a gas chamber located on the bottom wall side of the combustion tube. An upward mixture promoting cylinder that stands up more upwardly and a downwardly facing mixture promoting cylinder that hangs downward from the inside of the combustion disk are arranged at intervals, and the upward mixture promoting cylinder and the downwardly facing mixture promoting cylinder are arranged at intervals. A vaporizing burner characterized by having a bent air mixture gas passage in between. (2) A combustion plate with a large number of gas ejection holes facing upward is installed in a bottomed cylindrical combustion cylinder adjacent to the ventilation chamber, and a gas chamber is arranged between the combustion cylinder and the combustion plate. , a vaporizing cylinder is rotatably disposed within the combustion cylinder so that the open base side communicates with the gas chamber, and an annular jet passage is formed between the open base side and the gas chamber; In the structure in which the annular fumarole passage is connected to the blowing chamber by a large number of vent pipes penetrating the gas chamber, the gas chamber located outside the vent pipes and inside the gas nozzle holes has a gas chamber located on the bottom wall side of the combustion tube. An upward mixture promoting cylinder that stands up more upwardly and a downwardly facing mixture promoting cylinder that hangs downward from the inside of the combustion disk are arranged at intervals, and the upward mixture promoting cylinder and the downwardly facing mixture promoting cylinder are arranged at intervals. A bent air mixture gas passage is provided between the two, and an overhanging edge extending outward is provided on the free end side of the downward air mixture promoting cylinder, so that an annular air mixture is formed between the overhanging edge and the combustion disk. A vaporizing burner characterized by being equipped with a gas moderating section. (3) A combustion plate with a large number of gas ejection holes facing upward is installed in a bottomed cylindrical combustion cylinder adjacent to the ventilation chamber, and a gas chamber is arranged between the combustion cylinder and the combustion plate. , a vaporizing cylinder is rotatably disposed within the combustion cylinder so that the open base side communicates with the gas chamber, and an annular jet passage is formed between the open base side and the gas chamber; In the structure in which the annular fumarole passage is connected to the blowing chamber by a large number of vent pipes penetrating the gas chamber, the gas chamber located outside the vent pipes and inside the gas nozzle holes has a gas chamber located on the bottom wall side of the combustion tube. An upward mixture promoting cylinder that stands up more upwardly and a downwardly facing mixture promoting cylinder that hangs downward from the inside of the combustion disk are arranged at intervals, and the upward mixture promoting cylinder and the downwardly facing mixture promoting cylinder are arranged at intervals. A bent air mixture gas passage is provided between the two, and a projecting edge extending outward is provided on the free end side of the downward air mixture promoting cylinder, and an annular air mixture gas passage is provided between the extending edge and the combustion disk. What is claimed is: 1. A vaporizing burner characterized in that a deceleration section is provided, and an annular mixed gas deceleration ring extending toward the center is provided in the gas chamber from the cylindrical wall of the combustion cylinder.