JPH0436285B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] 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.

[Prior Art] Conventionally, a gas chamber equipped with a large number of gas ejection holes is arranged in a bottomed cylindrical combustion cylinder adjacent to a blowing chamber.
Moreover, the vaporizing tube is rotatably arranged so that an annular fumarole passage is formed between the open base side and the gas chamber, and the annular fume passage is formed by a number of ventilation pipes penetrating the gas chamber. The vaporizing burner connected to the ventilation chamber was developed by the applicant of the present invention and is well known, as described in, for example, Japanese Patent Laid-Open No. 73306/1983 prior to the filing of this application.

[Problem to be solved by the invention] By the way, in the conventionally known vaporizing burner,
Since there are many ventilation pipes that pass through the vaporizer cylinder side of the gas chamber, when the mixed gas generated inside the vaporizer cylinder is circulated into the gas chamber, it becomes an obstruction to the flow of the mixed gas, causing problems. There is a large difference in the flow velocity of the mixture gas between the part with the trachea and the part without it, and as a result, there is a problem in that the fumarole combustion from the gas nozzle of the combustion plate falls into a partially lifted state. Ta.

Therefore, the present invention prevents the occurrence of lift combustion by making the flow velocity of the mixed gas uniform throughout the gas chamber, even if a large number of vent pipes are installed passing through the gas chamber. The purpose of the present invention is to provide a vaporizing burner that can continue stable vaporizing combustion.

[Means for Solving the Problems] Therefore, the technical problem of the present invention is to simply and reliably equalize the flow velocity of the mixed gas in the gas chamber.

In order to solve this technical problem, the vaporizing burner of the present invention arranges a gas chamber equipped with a large number of gas ejection holes in a bottomed cylindrical combustion cylinder adjacent to a blowing chamber,
A vaporizing cylinder is rotatably disposed in the combustion cylinder so that its 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 a device in which an annular fumarole passage is connected to a blowing chamber by a large number of vent pipes penetrating the gas chamber, the inner peripheral edge of the gas chamber at a position corresponding to each vent pipe protrudes outward in a convex shape. Wave-shaped annular mixed gas flow velocity suppression adjustment that alternately forms a gas ejection opening section with a raised gas ejection opening section and a gas ejection suppression section where the inner circumferential edge of the corresponding position between each vent pipe is concavely directed inward. The plates are arranged horizontally.

[Operation] The above technical means operates as follows (see drawings).

If you start the burner now, the carburetor 6 will rotate at high speed, and combustion air will be blown from the blower chamber 2 through the blower tube 8 into the vaporizer tube 6.
The gas is injected into the combustion tube 1 through a large number of gas injection holes 5. At the same time, combustion air is blown from the ventilation chamber 2 to the annular jet passage 15 through a large number of ventilation pipes 16, and is injected into the combustion cylinder 1.

If fuel is supplied under such conditions, the fuel will be diffused and atomized in the vaporizer cylinder 6, and further atomized by the jet action of the combustion air blown from the blower cylinder 8. The fuel is sprayed into the combustion tube 1 from the fuel scattering end 12 provided at the open end of the vaporization tube 6, and is ignited to cause live combustion. If you do,
Since the entire vaporization cylinder 6 is heated by the generated raw combustion flame, the fuel supplied into the vaporization cylinder 6 is evaporated and vaporized, and mixed with the combustion air to form a mixed gas, and this mixed gas is In addition to being injected and stored in the gas chamber 3, a large number of gas injection holes 5... to the combustion tube 1
It is ejected inside and vaporizes and burns.

By the way, inside the gas chamber 3, there are a gas ejection opening part 18a whose inner circumferential edge at a position corresponding to a large number of vent pipes 16 passing through the gas chamber 3 protrudes outward in a convex shape, and each vent pipe 16. A gas ejection suppressing part 1 whose inner peripheral edge at a position corresponding to the space between ... is recessed inwardly.
Since the mixed gas flow rate suppression adjustment plate 18 having a wave-shaped annular shape for uniformly adjusting the mixed gas flow rate formed alternately with 8b is disposed horizontally, the mixed gas passage is The mixed gas trying to flow into the gas chamber 3 through the gas outlet 9 is made to flow into the gas chamber 3 more quickly through the gas outlet opening 18a at the positions of the ventilation pipes 16, which are obstacles to the flow. , each ventilation pipe 1 that does not impede the circulation.
In the position between 6......, the gas ejection suppressing part 1
After the flow is temporarily stopped by the gas chamber 8b, it can be allowed to flow slowly into the gas chamber 3, and the flow rate of the mixed gas in the gas chamber 3 is maintained uniformly throughout the gas chamber 3. The fumarole combustion from 5... does not become partially lifted,
It is possible to maintain stable blue flame combustion at all times.

[Embodiment] The present invention will be described with reference to a preferred embodiment shown in the accompanying drawings.

In the drawings, reference numeral 1 denotes a bottomed cylindrical combustion tube with an open tip and a central opening on the bottom wall side of the base end, and a blowing chamber 2 is adjacent to the bottom wall side of the combustion tube 1. ing. A combustion disk 4 is disposed on the bottom wall side of the combustion tube 1, and a gas chamber 3 is formed between the combustion tube 1 and the combustion disk 4. The combustion disk 4 forming the upper surface contains a large number of gases. A blowout hole 5 is provided. Reference numeral 6 denotes a cylindrical vaporizer tube with a closed tip and an open base end. It is attached so as to cover the rotating shaft 7. 8 is a blower cylinder,
The base end side of the blow tube 8 is connected to the blow chamber 2, and the tip side is deeply inserted into the vaporization tube 6,
A mixed gas passage 9 is formed between the vaporizer cylinder 6 and the blower cylinder 8. 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 vaporizing tube 6 so as to face the opening at the tip of the blast tube 8, and the tip of the oil pipe 11 is located close to the inside of the fuel diffuser 10. Being faced with. Further, on the base end open side of the vaporization cylinder 6, an annular mixed gas 1 with a fuel scattering end 12 at the tip is provided.
3 are integrally installed with a fuel scattering gap 14 in between, and an annular blow passage 15 is formed between this gas mixture 13 and the gas chamber 3. The annular blow passage 15 is communicated with the blower chamber 2 through a large number of vent pipes 16 passing through the gas chamber 3. Therefore, this annular blowhole passage 15 is a rotation gap of the carburetor cylinder 6, and furthermore, combustion air is constantly circulated from the ventilation chamber 2 to prevent burnout of the base end side of the carburetor cylinder 6 and the combustion disk 4. It is for. 17
is a spark plug.

Inside the gas chamber 6, an air mixture gas flow rate pressure adjustment plate 18 is disposed. The air mixture gas flow rate suppression adjustment plate 18 is arranged between a gas ejection opening portion 18a whose inner circumferential edge at a position facing each ventilation pipe 16 protrudes outward in a convex shape, and each ventilation pipe 16 . It is a corrugated annular plate body in which gas ejection suppressing portions 18b are formed alternately with gas ejection suppressing portions 18b whose inner circumferential edges are inwardly recessed at positions corresponding to the inner circumferential edges thereof.

By the way, the flow of the mixed gas flowing into the gas chamber 3 from the mixed gas passage 9 of the vaporizer cylinder 6 is blocked by the ventilation pipes 16, so the flow of the mixed gas flowing into the gas chamber 3 from the mixed gas passage 9 of the vaporization cylinder 6 is blocked, so that portion of the mixed gas flows into each ventilation pipe 16.
... Although the flow velocity is slower than that flowing between the gas chambers 3 and 3, the mixed gas flow velocity suppression adjustment plate 18 as described above is provided in the gas chamber 3, so that the mixed gas flows within the gas chamber 3. The speed is adjusted evenly throughout. Therefore, the large number of gas injection holes 5 in the combustion disk 4
The ejection pressure of the mixed gas ejected from is maintained evenly,
Partial lift combustion can be reliably prevented.

[Effects of the Invention] In short, since the present invention has the above-mentioned specific configuration, a large number of ventilation pipes 16 that make the flow rate of the mixed gas unstable in the gas chamber 3...
Even if ... is arranged, the gas ejection openings 18 provided alternately on the inner peripheral edge of the mixed gas flow velocity suppression adjustment plate 18
A and the gas ejection suppressing part 18b can make the flow rate of the mixed gas uniform over the whole, prevent the combustion from going into a lift state, and always maintain stable blue flame combustion. It produces the effect that can be achieved.

[Brief explanation of drawings]

The drawings show one 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 plan view. 1... Combustion tube, 2... Blow chamber, 3... Gas chamber,
4... Combustion disk, 5... Gas nozzle, 6... Vaporization cylinder, 15... Annular fumarole passage, 16... Ventilation pipe,
18...Air mixture gas flow velocity suppression adjustment plate, 18a...Gas ejection opening section, 18b...Gas ejection suppression section.

Claims (1)

[Claims] 1. A gas chamber equipped with a large number of gas ejection holes is arranged in a bottomed cylindrical combustion cylinder adjacent to the blowing chamber, and the proximal open side of the combustion cylinder communicates with the gas chamber, and the proximal end The vaporizing cylinder is rotatably arranged so that an annular fumarole passage is formed between the open side and the gas chamber, and the annular fumarole passage is connected to the blower chamber by a large number of ventilation pipes penetrating the gas chamber. In the gas chamber, there is a gas ejection opening whose inner peripheral edge protrudes outward in a position corresponding to each ventilation pipe, and an inner part located between each ventilation pipe in a corresponding position. A vaporizing burner characterized by horizontally disposed corrugated annular mixed gas flow velocity suppression adjustment plates in which gas ejection suppression parts whose peripheries are turned inward and alternately formed are concave.