JPS63226512A - Evaporation burner - Google Patents

Abstract

PURPOSE:To prevent the overheating of an evaporating tube and maintain good evaporating combustion for a long period of time, by a method wherein an air guide body is arranged at the discharging side of an air passage with a gap for spraying fuel to eject combustion air, sent through an air passage, against the outer peripheral surface of the evaporating tube. CONSTITUTION:An air passage 115, communicating with an ejecting air chamber 113, is provided between the ejecting air chamber 113, arranged around the central open end 105 of a gas chamber 103, and the open side of the end of an evaporating tube 109. An air guide body 122 is arranged at the discharging side of an air passage 115 with a gap 123 for ejecting fuel to eject combustion air, ejected out of the air passage 115, against the outer peripheral surface of the evaporating tube 109 or to eject the same air against the outer peripheral surface of the evaporating tube and the inner peripheral surface of a combustion tube 101 respectively. Upon evaporating combustion, the outer peripheral surface of the evaporating tube 109 is cooled gradually and nicely by the combustion air, ejected from the ejecting air chamber 113 through the air passage 115 while being guided by the air guide body 122, whereby the evaporating tube 109 will never be heated excessively, the burning damage may be prevented and stabilized evaporating combustion may be continued for a long period of time.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is directed to the outer peripheral surface of the carburetor cylinder by directing combustion air sent from an air supply passage provided between the base end open side of the carburetor cylinder and the fume chamber. or the outer peripheral surface of the carburetor cylinder and the inside of the combustion cylinder
The present invention relates to a vaporizing burner that speeds up the start of combustion and prevents overheating of the vaporizing cylinder by distributing it to the N-fuo, thereby maintaining good vaporizing combustion over a long period of time.

Conventional technology Conventionally, a lunar vaporization burner has been developed that prevents the inner bottom wall of the combustion tube from being heated more than necessary due to raw horse slash-and-burn fields and vaporization combustion fields when the fuel is transferred from the main combustion state to vaporization combustion. The overheat prevention device for the bottom wall of the combustion cylinder is known as described in, for example, Japanese Patent Publication No. 52-32462 prior to the present application, and the contents thereof will be explained with reference to FIG.

That is, a gas chamber 2 is disposed over the inner periphery of the combustion tube 1, and is in communication with the gas chamber 2 at the central open end 3 of the gas chamber 2, and between the central open end 3 of the gas chamber 2 and the central open end 3 of the gas chamber 2. A cold air fumarole gap 4 exists to allow the vaporization cylinder 5 to be rotatably positioned. A fumarole chamber 6 communicating with the cold air fumarole gap 4 is disposed in the central open side 3 of the gas chamber 2 facing the cold air fumarole gap 4, and the cold air introduced into the fumarole chamber 6 is transferred to the cold air fumarole gap 4. The air curtain is superoxidized above the inner bottom wall surface 1 of the combustion tube 1 by ejecting it toward the surrounding combustion tube 1, thereby preventing the inner bottom wall surface 7 of the combustion tube 1 from being heated by the combustion flame. be.

Problems that the invention sought to solve By the way, in conventional vaporizing burners of this type, all of the cold air injected from the cold air jet gap is directed toward the combustion tube located above the bottom wall surface of the cylinder. Since air was being blown, the vaporization cylinder continued to heat up for a long time, causing intense heating, and perhaps this accelerated the wear and tear of the vaporization cylinder due to excessive heating, and the fuel supplied to the inner surface of the vaporization cylinder It does not diffuse into a thin film but becomes a bead, and while it is not evaporated, it is easily scattered into the combustion cylinder from the open end of the vaporization cylinder, becoming a red-hot raw combustion flame that is likely to flood the fields. Therefore, a problem arose in that stable vaporization combustion could not be continued for a long period of time.

Means for Solving the Problems The present invention solves the above-mentioned problems, and its configuration will be explained below with reference to FIGS. 1 and 2, which correspond to embodiments.

That is, a combustion tube 1 in which a gas chamber 1υ3 is arranged over the inner periphery.
01 is provided. Inside the combustion tube 101, a vaporization tube 109 is rotatably disposed, the open end of which communicates with the gas chamber 103. An air supply passage 115 communicating with the fume chamber 113 is provided between the fume gas chamber 113 disposed around the central open end portion 105 of the gas chamber 103 and the base end open side of the vaporization tube 109. A fuel spray gap 12 is provided on the discharge side of the air supply passage 115.
3, the air supply guide body 122 is arranged to open the air supply passage 115.
The combustion air ejected from the combustion tube is ejected toward the outer circumferential surface of the vaporization tube 109, or directed toward the outer circumference of the vaporization tube and the inner circumference of the combustion tube 101, respectively.

Operation Now, when starting combustion, the vaporizer cylinder 109 is rotated. Next, when the fuel is sent toward the inner peripheral surface of the carburetor 109 and at the same time combustion air is blown into the carburetor 109 and the blast chamber 113, the combustion air completely fills the central open end 105 of the carburetor 109. gas chamber 103 and then gas chamber 10.
3 into the combustion tube 101, while the combustion air blown into the fume chamber 113 is
5, and is divided into two parts on the discharge side, and one combustion air is guided by the air supply guide 122 to the vaporization cylinder 1u.
9, and other combustion air is ejected from the fuel spray gap 123 toward the inner circumferential surface of the combustion tube 101.

Further, the fuel fed to the inner periphery of the vaporization cylinder 109 is diffused into a thin film by the rotational centrifugal force and the blowing action of combustion air, and is then sprayed from the open end of the vaporization cylinder 109. Together with the combustion air ejected from the fuel injection gap 123, the fuel becomes fine particles and is sprayed into the inside of the fuel ♂@101, which quickly causes main combustion by ignition and intensely heats the combustion air 109.

Therefore, when the vaporization tube 109 is heated as described above, the fuel that has been diffused and transferred along the inner circumferential surface of the vaporization tube 109 is quickly evaporated and vaporized to become a vaporized gas, which is mixed with combustion air and becomes a gas. After being forced into the chamber 103, it becomes a complete mixture of gases, is injected into the combustion tube 107, and is vaporized and burned.

By the way, during vaporization combustion as described above, the fume chamber 1
13, passes through the air supply passage 115, and further passes through the air supply guide body 12.
Since the outer circumferential surface of the carburetor 109 is moderately cooled by the combustion air blown out while being guided by the combustion air 2, even if vaporization combustion is continued for a long time,
9 will not be heated excessively, thereby preventing burnout, and at the same time preventing the occurrence of red-flame combustion that occurs when the delivered fuel becomes beaded and scattered due to excessive heating. , it is possible to continue stable vaporization combustion over a long period of time, and to apply it. Further, in FIG. 2, a jet fuel gap 125 is provided on the upper surface of the jet fuel chamber 113 to direct jets of fuel from the jet chamber 113 toward the inner circumferential surface of the combustion tube 101, so that the main combustion occurs from the fuel spray gap 123 together with the jets. It is possible to measure the promotion of

EMBODIMENTS The configuration of the vaporizing burner according to the present invention will be described with reference to preferred embodiments shown in the accompanying drawings.

In the drawing, 101 is the inner side 2 excluding the flame nozzle 102.
This is a combustion tube with a gas chamber 103 having a hollow surface, and the gas chamber 103 is connected to the combustion tube 101. >The combustion disks 106 are arranged at intervals on the inner circumferential surface of the Z cylinder 101, and at the center of the inner bottom wall 104 of the combustion disks 106,
A central open end 105 that bulges upward is provided, and the inner peripheral surface of the combustion disk 106 is provided with a combustion tube 101 for supplying vaporized gas.
A large number of flame holes 107 for inward combustion.
... is perforated. And the combustion bar is cylinder 101
A long rotating shaft 108 is inserted into the center of the rotary shaft 108, and a vaporizing cylinder 109, which has a closed end and an open proximal end, is directly connected to the distal end of the rotary shaft 108, and is rotatably positioned therein.

The open end of the vaporizing cylinder 109 is bent outward to protrude, and the air supply ring 110 is integrally attached to the peripheral end surface so that a fuel scattering gap 111 is formed. Then, the peripheral end of the air supply ring 110 is connected to a fuel scattering end 112.
Let it form. Reference numeral 113 denotes a fumarole chamber disposed around the central open end 105 of the gas chamber 103;
An upward air supply guide ring 114 is mounted on the upper surface of the air supply guide ring 13, and an air supply passage 115 corresponding to a rotation gap is formed between the air supply guide ring 114 and the air supply ring 110. 116 is a fume port for connecting the fume chamber 113 and the air supply passage 115. Reference numeral 117 designates an air supply pipe for supplying combustion air into the fume chamber 113, and reference numeral 118 designates an air supply pipe for supplying combustion air into the fume chamber 113.The reference numeral 118 designates an air supply pipe for supplying combustion air into the fume chamber 113. Vaporizing tube 1 so that it looks deep
This is a blower tube inserted into 09.

119 is a fuel scattering gap 1 on the inner surface of the tip side of the vaporization cylinder 109.
20 is a hollow cylindrical fuel diffuser that is integrally attached, and 121 is an oil feed pipe for feeding fuel to the inner surface on the base end side of the fuel diffuser 119. 122 is air supply passage 1
The air supply guide ring 11 is attached to the air supply guide ring 11 using an appropriate mounting bracket 124 so as to be positioned with a fuel spray gap 123 on the discharge side of the air supply guide ring 15.
4, the air supply guide body 122 is an air supply guide body with both ends open, and the air supply guide body 122 actively directs the combustion air injected from the discharge side of the air supply passage 115 toward the outer circumferential surface of the vaporization cylinder 109. In order to cool the vaporizing tube 109 moderately with the combustion air, the entire structure may be curved inward, or as in another embodiment shown in FIG. It may be formed into a single body with both ends open so that more atomized combustion air can be ejected toward the flame nozzle 102 along the outer peripheral surface of the vaporizing tube 109. In the embodiment shown in FIG. 2, a jet gap 125 is formed between the upper surface of the jet chamber 113 and the air supply guide ring 114, which allows the jet to flow toward the pB plane in the combustion tube 101. are doing.

Therefore, according to the vaporizing burner of the present invention, the fumarole chamber 11
A part of the combustion air passed through the air supply passage 115 from 3 and ejected from the discharge side is sent to the fuel scattering end 1 of the air supply ring 110.
The other fuel (J'!) is sprayed into the combustion tube 101 through the combustion guard gap 123 together with the fuel scattered from the combustion chamber 12 and quickly causes main combustion. While being guided by the air supply guide 122, the air is blown toward the outer circumferential surface of the vaporization tube 109, and the vaporization tube 109 is cooled by a moderate amount of G to prevent it from being overheated, thereby preventing burnout and promoting the generation of vaporized gas. Therefore, stable vaporization can be continued for a long period of time.

Furthermore, main combustion can be promoted by directing the jet to the inner peripheral surface of the combustion tube 101 through the jet gap 125.

Effects of the Invention In short, the present invention has the above configuration, and
Fumarole chamber 1 disposed at central open end 105 of gas chamber 103
13 into the air supply passage 115, and then vaporizes the combustion air while passing it along an air supply guide 122 disposed on the discharge side of the air supply passage 115 with a fuel spray gap 123. Since the vaporizer tube 109 is slowly cooled by blowing the fumes toward the outside of the tube 109, even if the vaporization continues to burn for a long period of time, the vaporizer tube 109 will be excessively heated by the vaporized combustion flame from the field soil. In order to prevent this from happening and to heat the entire vaporizing cylinder 109 to a temperature suitable for generating vaporized gas, and to promote the generation of vaporized gas, a part of the combustion air is transferred to the fuel spray gap 123 and the jet. Gap 1
25 toward the inner circumferential surface of the combustion tube 101 along with the scattered fuel, which promotes atomization of the fuel, which not only starts ignition of the main combustion but also promotes the main combustion and quickly transitions to vaporization combustion. In addition, since combustion air is constantly flowing through the air supply passage 115, this part can be
◇: It is possible to prevent the rotation of the vaporizing cylinder 109 from becoming unsmooth due to the curvature effect caused by cooling and heating, thereby achieving the effect of allowing stable vaporization combustion to continue for a long period of time.

[Brief explanation of the drawing]

The drawings show an embodiment of a vaporizing burner related to a misfire, in which FIG. 1 is a longitudinal sectional front view, FIG. 2 is an enlarged partially cutaway front view of a vaporizing burner of another embodiment, and FIG. The figure is a partially cutaway longitudinal sectional front view of a conventional example.

Claims (2)

[Claims] (1) A vaporizing cylinder whose base end open side communicates with the gas chamber is rotatably arranged in a combustion cylinder having a gas chamber arranged on the inner periphery, and is arranged around the central open end of the gas chamber. An air supply passage communicating with the fume gas chamber is provided between the fume chamber and the proximal open side of the carburetor cylinder, and an air supply guide is disposed on the discharge side of the air supply passage with a fuel spray gap therebetween. A vaporizing burner characterized in that combustion air emitted from an air supply passage is emitted toward the outer peripheral surface of a vaporizing cylinder. (2) A vaporization cylinder whose base end open side communicates with the gas chamber is rotatably arranged in a combustion cylinder with a gas chamber arranged on the inner periphery, and is arranged around the central open end of the gas chamber. An air supply passage communicating with the fume gas chamber is provided between the fume chamber and the proximal open side of the carburetor cylinder, and an air supply guide is disposed on the discharge side of the air supply passage with a fuel spray gap therebetween. A vaporizing burner characterized in that combustion air is injected from an air supply passage toward an outer circumferential surface of a vaporizing cylinder and an inner circumferential surface of a combustion cylinder.