JPS61217611A - Virtical type evaporating burner - Google Patents

Abstract

PURPOSE:To increase combustion quantity and improve efficiency as a heat source by a method wherein many ejecting flame holes are bored in the inner periphery of a combustion body and a recessed combustion chamber is provided on a bottom wall center while the opening side of an evaporating body arranged rotatably through a cold air ejecting path is located by immersion in the recessed combustion chamber. CONSTITUTION:An evaporating body 19 is rotated with a high speed and forced air is sent into the evaporating body 19 and an ejecting chamber 14. The forced air passed through the inside of the evaporating body 19 and is injected to a gas chamber 10, thereafter, it is ejected from many ejecting flame holes 7 and sub-ejecting holes 24 into a combustion body 1; at the same time, the other of the forced air is discharged from the ejecting chamber 14 and is ejected along a cylinder wall 11 of the recessed combustion chamber 9 through a cold air ejecting path 23. In case fuel oil is supplied to the rotating evaporating body 19 inside surface, the fuel oil is diffused and shifted in a thin film condition and is effused with particle shapes from an opening end part to the sunken combustion chamber 9 while it is ignited by the ignition operation and is effected unevaporating combustion rapidly. The fuel oil supplied after that time is vaporized and evaporated rapidly and is mixed by stirring with the forced air, thereafter, it may be ejected altogether from the ejecting flame holes 7 to be burnt.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention enables even a thin water heater or space heater to be easily inserted into a combustion chamber and to efficiently heat hot water using the amount of vaporized combustion in the field. Alternatively, the present invention relates to a vertical vaporizing burner that can accomplish heating work.

Conventional technology Conventionally, even in vaporizing burners in which the diameter of the combustion tube is made considerably larger than that of the vaporization tube in order to increase the amount of combustion, it is difficult to ensure that the starting ignition of the main fuel can be carried out. In order to stabilize the transition from main combustion to vaporization combustion and to stably continue large-capacity vaporization combustion, the structure was modified by installing a combustion disk on the inner bottom side of the flat combustion cylinder. A gas chamber is formed, and a vaporizing cylinder provided with a fuel scattering gap is rotatably positioned in the central opening of the gas chamber to form a gas ejection passage between the central opening and the vaporizing cylinder. A combustion stabilizing device in a vaporizing burner in which an annular ignition wall is installed on the combustion plate near the outside of the passage, which is higher than the set position of the fuel scattering gap, was developed before this application, for example, in Japanese Utility Model Publication No. 52-5403.
It is described in Publication No. 3 and is publicly known.

Problems to be Solved by the Invention Incidentally, in the above-mentioned known flat type vaporizing burner, the air-fuel mixture that is pressurized into the gas chamber from the vaporizing tube is transferred to a flat combustion chamber stretched over the bottom wall of the combustion tube. Because fumarole combustion was carried out through a large number of gas nozzles drilled in the disk, the total area of the gas nozzles was smaller than that of a conventional cylindrical combustion tube in which gas nozzles were punched in the wall of the cylinder. Therefore, since the above-mentioned known vaporizing burner cannot efficiently vaporize and burn a large amount of mixed gas, it cannot be used as a heating source burner for a thin water heater or space heater. Therefore, in order to vaporize and burn a large amount of mixed gas, even if the flat combustion tube is formed into a polygonal shape and the planar area of the combustion tube is expanded, the combustion tube becomes too large and a thin Perhaps because of the problem of not being able to use it as a heating source burner for water heaters or space heaters, the amount of raw combustion flame or vaporized combustion produced in the annular ignition wall is not sufficiently replenished with combustion air. Incomplete combustion occurs, and soot is generated and adhered to the inside of the annular ignition wall, making it impossible to repeatedly perform good main combustion and vaporization combustion. As a result, effective heating of the vaporization cylinder is reduced. In addition, the annular ignition wall was quickly burned out due to the amount of combustion, and the vaporizing tube protruded above the combustion tube, making it impossible to reduce the height of the burner.

Therefore, the present invention further expands the total area of the mixed gas fumes without unnecessarily increasing the planar area of the flat, polygonal combustion cylinder, thereby efficiently vaporizing and burning a large volume of the mixed gas. In addition to making it possible to effectively use it as a heating source burner for a thin water heater or space heater,
External evaporation not only accelerates the heating of the vaporized body by allowing the main combustion and vaporized combustion that occur around the vaporized body at the start of combustion to be completely combusted without generating soot, but also eliminates burnout of burner members. The above problem is solved by providing a vertical vaporizing burner whose body is housed in a flat combustion body and whose height can be lowered.

Means for Solving the Problem Therefore, the technical problem of the present invention is that even if it can be used in a thin water heater or space heater, increasing the amount of evaporative combustion and producing raw combustion cannot achieve complete combustion of evaporative combustion. The aim is to make the height of the burner lower in order to more accurately achieve effective heating of the vaporized material.

In order to solve the above technical problem, in particular, the configuration of item 1 is modified such that a vertical cylinder is installed around the periphery of the bottomed flat combustion body, which has a polygonal cross section and a short vertical cylinder wall with an open upper end. A flat combustion disk with a large number of smoke holes drilled all around the cylinder wall and a recessed combustion chamber in the center of the bottom wall is installed, and a gas chamber is placed between the combustion disks. A vertical vaporizing burner characterized in that the open side of a vaporizing body rotatably disposed is recessed in the recessed combustion chamber via a fume chamber and a cold air blow passage leading to the fumes chamber. , and the configuration of item 2 is modified such that the cross section is polygonal and a flat bottomed combustion body having a short vertical cylindrical wall with an open upper end is provided with a large number of jets around the entire circumference of the vertical cylindrical wall. A flat combustion disc body is provided with a smoke hole drilled therein and a recessed combustion chamber provided in the center of the bottom wall, a gas chamber is formed between the combustion body and the combustion disc body, and a gas chamber is formed in the recessed combustion chamber. The fumarole chamber and the open side of the vaporized body rotatably disposed through the fumarole chamber and the cold air fumarole passage leading to the fumarole chamber are recessed, and
A vertical vaporizing burner characterized in that a plurality of auxiliary nozzles are perforated on the circumferential surface of the cylinder wall and the bottom wall surface of the recessed combustion chamber, respectively, for causing a part of the mixed gas in the gas chamber to smoke along the vaporized body. This is what I did.

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

First, when starting combustion, the vaporized body 19 is rotated at high speed, and forced air is blown through the vaporized body 19 and the inside of the fume chamber 14 . Then, the forced air passes through the inside of the vaporizer 19 and is injected into the gas chamber 10, and then is injected into the combustion body 1 from the numerous nozzle holes 7 and the auxiliary nozzle holes 24, and at the same time the other forced air is injected into the gas chamber 10. The fumes exit from the fume chamber 14, pass through the cold blast fume passage 23, and are emitted along the cylindrical wall 11 of the recessed combustion chamber 9.

When fuel is supplied to the inner surface of the rotating vaporized body 19 in a stiff state, the fuel is diffused into a thin film and is sprayed into the recessed combustion chamber 9 in the form of fine particles from the open end. It is ignited by the ignition action and combusts quickly.

In this way, when a live combustion flame is generated in the recessed combustion chamber 9, the entire vaporized body 19 is efficiently heated by the raw combustion flame in the field soil, and the temperature inside thereof is quickly raised to the temperature at which vaporization occurs. . Therefore, from then on, the supplied fuel is quickly evaporated and vaporized while being diffused and transferred along the inner surface of the vaporized body 1.9, and the generated vaporized gas is stirred and mixed with the forced air to form a complete mixed gas. After being pressurized into the gas chamber 10, the gas is combusted all at once from a large number of nozzle holes 7 under a constant pressure condition.

On the other hand, a part of the mixed gas injected into the gas chamber 10 enters the fumarole field through the auxiliary smoke holes 24, which are formed in large numbers on the cylindrical wall 11 side and the bottom wall 12 side of the recessed combustion chamber 9, and is vaporized. Since the entire body 19 is heated, even if the combustion body 1 is formed in a polygonal shape compared to the circular vaporization body 19, a large amount of mixed gas is continuously generated, and the gas mixture is heated through the combustion disk body 5 with a large jet area. It is possible to spread vaporized combustion flames into the field soil and continue large-capacity vaporized combustion over a long period of time.

Furthermore, even if raw combustion and vaporized combustion occur in the recessed combustion chamber 9 from the start of combustion, forced air is blown into the recessed combustion chamber 9 from the cold air jet passage 23.
Both the raw combustion flame and the vaporized combustion flame are completely combusted by the replenishing action of combustion air, and the cylindrical wall 11, bottom wall 12, and fume chamber 14 of the recessed combustion chamber 9 are also in good condition, with no soot generated or attached. In addition to being cooled and prevented from burning out, the vaporized body 19 is housed in the combustion body 1, and the height of the burner can be lowered, making it effective as a heating source burner for a flat water heater or space heater. Available.

Embodiment The configuration of a vertical vaporizing burner according to the present invention will be described with reference to a preferred embodiment shown in the accompanying drawings.

Referring to the drawing, 1Fi has a polygonal cross section and a short vertical cylindrical wall 2 with an open upper end, and an annular bulge 4 bulging outward in the center of the bottom wall 3. It is a flat combustion body with a bottom, and a vertical cylinder wall 6 is provided on the inner periphery of the combustion body 1.
A flat combustion disk body 5 having a substantially similar shape to the combustion body 1 having a large number of nozzle holes T drilled around the entire circumference and a recessed combustion chamber 9 provided in the center of the bottom wall 8 is spaced apart. A gas chamber 10 is formed between the combustion body 1 and the combustion disk body 5.

The recessed combustion chamber 9 is formed by a cylindrical wall 11 and a bottom wall 12, and the bottom wall 12 has an opening 13 at its center.

Reference numeral 14 denotes a hollow annular fume chamber installed around the opening end of the open portion 13, and the fume chamber 14 is connected to a blowing chamber 15 adjacent to the annular bulging portion 4 side of the combustion body 1. They are communicated via a plurality of air supply pipes 16, and a cold air blow window 1γ is opened in the inner cylindrical wall of the blow chamber 14.

Reference numeral 18 denotes a rotating shaft inserted into the center of the combustion body 1 from the side of the ventilation chamber 15, and a vaporizer 19 whose base end side is open so as to cover the rotating shaft 18 is provided at the tip of the rotating shaft 18. are directly connected.

The open end of the vaporized body 19 is bent outward to protrude,
A fuel scattering plate 21 is integrally provided on the upper part of the mixed cylinder 20 having a hollow shape on the circumferential end surface thereof, so that a fuel scattering gap 22 is formed between the fuel scattering plate 21 and the end of the vaporizing cylinder 19.

Reference numeral 23 denotes an annular cold air jet passage formed between the upper part of the fumarole chamber 14 and the mixed cylinder 20 attached to the open end of the carburetor cylinder 19, and the base end side of the cold air jet passage 23 is a cold air jet passage. It is communicated with the window 17 and the gas chamber 10 to blow only cold air into the recessed combustion chamber 9. Therefore, the vaporized substance 19 mentioned above
is communicated with the gas chamber 10 via the open part 13, and the open side of the vaporized body 19 is placed in the recessed combustion chamber 9, and the fuel comes out from the fuel scattering gap 22 and is sprayed by the fuel scattering plate 21. The particles are necessarily atomized by hitting the cylindrical wall 11 surface of the recessed combustion chamber 9, and the main combustion is quickly carried out by the replenishment action from the cold air jet gap 23. A large number of auxiliary nozzle holes 24 are bored in the circumferential surface of the cylindrical wall 11 and the bottom wall 12 that form the recessed combustion chamber 9, so that a part of the mixed gas filling the gas chamber 10 is transferred to the vaporized body 1.
Toward 9, fumarole combustion is carried out to raise the temperature of the inside of the vaporized body 19 to a vaporized gas generation temperature, and vaporized gas is continuously generated.

25 is a communication hole 2 whose bottom side is opened at the center of the annular bulge 4.
6 end, and inserted and erected so that the upper end opening faces a position near the inside of the top of the vaporizer 19, and 21
is a hollow fuel diffuser integrally attached to the inner surface of the top of the vaporizer 19, and the inner surface of the vaporizer 19 and the fuel diffuser 27
A fuel scattering gap of an appropriate size is provided between the upper end surface and the upper end surface.

28 is a fuel supply pipe for feeding fuel to the lower inner surface of the fuel oil diffuser 27. 29 is an ignition plug disposed inside the recessed combustion chamber 9.

Incidentally, if a large number of nozzle holes 7 are also perforated on the bottom wall 8 of the combustion disk body 5, a larger volume of mixed gas can be combusted with fumarole, and the combustion heating efficiency can be improved. The auxiliary nozzle hole 24 bored in the bottom wall 12 of the combustion chamber 9 serves as a drain hole for quickly flowing unburned oil into the gas chamber 10 when unburned oil is generated at the start of main combustion. It can also be used as

The unburned oil flowing down into the gas chamber 10 may be discharged to the outside through a drain pipe 30 connected to the annular bulge 4 of the combustion body 1.

Therefore, even if both the combustion body 1 and the combustion disc body 5 are formed into a flat polygonal shape for the circular gasification body 19, the total area of the nozzle holes 7 is significantly increased, and the amount of combustion is reduced. The heating effect of the vaporized body 19 can be increased by completely burning the main combustion and vaporized combustion in the recessed combustion chamber 9 without generating soot under good replenishment action. In addition to continuously generating a large amount of vaporized gas, the cold air blown into the recessed combustion chamber 9 can prevent burnout accidents and achieve good vaporized combustion over a long period of time. Since a flat vaporizing burner can be obtained, it can be effectively used as a heating source burner for a thin hot water heater.

Effects of the Invention In short, since the present invention has the above-described specific configuration, the shapes of the combustion body 1 and the combustion disk body 5 are flat and polygonal so as to be suitable for a thin water heater or space heater. Even in the case where the burner is formed in the form of As much as possible, combustion air is effectively injected into the recessed combustion chamber 9 to completely burn the main combustion and vaporization combustion within the recessed combustion chamber 9, and to prevent burnout of the recessed combustion chamber 9, Not only does it enable long-term use, but also a part of the mixed gas filled in the gas chamber 10 is injected into the recessed combustion chamber 9 through a number of auxiliary flame holes 24, which evaporates the amount of vaporized combustion. By placing field soil along the combustion body 19, the vaporization body 19 can be heated and the generation of vaporized gas can be promoted.In addition, the vaporization body 19 can be housed in the combustion body 1 to lower the height of the burner. It has the effect that it can.

[Brief explanation of drawings]

The drawings show an embodiment of a vertical vaporizing burner according to the present invention, and FIG. 1 is a partially cutaway longitudinal sectional front view, and FIG.
The figure is a plan view of the same.

Claims (4)

[Claims] (1) A large number of nozzle holes are drilled around the entire circumference of the vertical cylinder wall in the periphery of a flat bottomed combustion body having a short vertical cylinder wall with a polygonal cross section and an open top end, A flat combustion disk body having a recessed combustion chamber in the center of the bottom wall is disposed to form a gas chamber between the combustion body and the combustion disk body. A vertical vaporizing burner characterized in that the open side of a vaporizing body rotatably disposed through a cold air fumarole passage leading to a fumarole chamber is recessed. (2) Claim 1 characterized in that the nozzle holes drilled all around the vertical cylindrical wall of the combustion disc body are also bored in the bottom wall surface of the combustion disc body located outside the recessed combustion chamber. Vertical vaporizing burner as described in section. (3) A large number of nozzle holes are drilled around the entire circumference of the vertical cylinder wall around the periphery of the bottomed flat combustion body having a short vertical cylinder wall with a polygonal cross section and an open top end, A flat combustion disk body with a recessed combustion chamber provided in the center of the bottom wall is disposed, a gas chamber is formed between the combustion body and the combustion disk body, and a fumarole chamber and a fumarole chamber are provided in the recessed combustion chamber. The open side of a rotatably disposed vaporizer is placed in a recessed position via a cool air blow passage leading to the gas chamber, and a part of the mixed gas in the gas chamber is vaporized on the cylindrical wall circumferential surface and bottom wall surface of the recessed combustion chamber. Auxiliary jets along the body
A vertical vaporizing burner characterized by having a large number of holes. (4) A patent claim characterized in that the auxiliary nozzle hole opened in the bottom wall of the recessed combustion chamber can also be used as a drain hole for flowing unburned oil generated in the recessed combustion chamber into the gas chamber. 2. The vertical vaporizing burner according to item 2.