JPH0243086B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention maintains the minimum combustion amount for continuing vaporization combustion, and easily adjusts the combustion amount between the minimum combustion amount and the maximum combustion amount for effectively achieving the heating effect. The present invention relates to a combustion amount adjusting device for a vaporizing burner that can be adjusted steplessly.

First, the applicant proposed a rotary vaporizing cylinder with a closed tip and a fuel scattering end formed on the open base side, which was positioned so as to be rotatable so that the open base side was immersed in a gas chamber provided on the bottom wall side of the combustion cylinder. At the very least, an annular gas jetting path is formed between the fuel scattering end of the rotary vaporizing cylinder and the flame wall of the gas chamber, and the gas jetting path is divided into two into a main and sub gas jetting path. An annular opening/closing body that can be adjusted up and down is installed, and when the annular opening/closing body is lowered to come into close contact with the bottom wall of the gas chamber, the auxiliary gas passage is closed to reduce the amount of vaporized combustion and cause a backfire phenomenon. We have developed a vaporizing burner that can be used to increase the amount of vaporized combustion by opening both the main and sub-gas ejection passages when the annular opening/closing body is raised away from the bottom wall. It was confirmed that this had a significant practical effect.

However, in the case of the above-mentioned vaporizing burner, the amount of vaporized combustion is limited to only two types, decreasing combustion adjustment and increasing combustion adjustment, by the lifting and lowering adjustment operation of the annular opening/closing body. Since it is not possible to steplessly adjust the combustion amount between the minimum combustion amount and the maximum combustion amount to effectively achieve the heating effect while maintaining the heating effect, it is not easy to obtain the combustion amount that matches the purpose of use. As a result, it is not suitable for versatile vaporizing burners.

In view of the above, the present invention forms a gas passage with an annular gas jet opening between the fuel splashing end of the rotary vaporizing cylinder and the flame wall of the gas chamber, and the gas passage has a gas passage with an annular gas spout opening between the fuel splashing end and the flame wall of the gas chamber. An annular partition wall defining a main gas outlet is installed and positioned between them to form a secondary gas outlet between the annular partition wall and the flame wall, and an annular opening/closing body is provided at the center of the secondary gas outlet. is disposed so as to be freely adjustable forward and backward along the axial direction of the rotary vaporizing cylinder, and by retracting the annular opening/closing body, the opening of the auxiliary gas nozzle is successively adjusted steplessly to continue vaporizing combustion. While always maintaining the minimum combustion amount, the combustion amount can be easily and steplessly adjusted between the minimum combustion amount and the minimum combustion amount to effectively achieve the heating effect, making it versatile. DESCRIPTION OF THE PREFERRED EMBODIMENTS The object of the present invention is to provide a combustion amount adjusting device for a vaporizing burner that can be easily adapted as a heat source, and the configuration of the device of the present invention will be described below with reference to a preferred embodiment shown in the accompanying drawings.

In Figures 1 to 4, reference numeral 1 denotes a bottomed cylindrical combustion tube with an open tip and a closed base end, and the combustion tube 1 has a concave portion of an appropriate size in the center on the bottom wall side. At the same time, an annular flame wall 3 having an appropriate height is erected on the outside of the concave portion, and a gas chamber 2 is formed inside the annular flame wall 3. An air supply chamber 4 is adjacent to the bottom wall side of the combustion tube 1, and the combustion tube 1 and the air supply chamber 4 are communicated through a ventilation hole 5. Reference numeral 6 denotes a cylindrical rotary carburetor cylinder with a closed tip and an open base end. It is attached over the shaft 7. Reference numeral 8 denotes a blower tube, and the blower tube 8 is deeply inserted from the vent hole 5 of the combustion tube 1 toward the tip side of the rotary vaporization tube 6, and
An air mixture passage 9 is formed between the rotary vaporizer cylinder 6 and the blower cylinder 8, and the air mixture passage 9 communicates with the gas chamber 2 at its base end.

The proximal open side of the rotary vaporizing tube 6 has its circumferential end wall directed toward the distal end side of the rotary vaporizing tube 6 and is integrally curved diagonally outward to form a fuel splashing end 10 at the end. The base end open side of 6 is slightly recessed into the gas chamber 2 to form an annular gas passage 11 between the annular flame wall 3 and the fuel splashing end 10.

An annular partition wall 13 is installed in the gas passage 11 and defines a main gas outlet 12 having a constant opening degree to obtain the minimum amount of vaporized combustion between the gas passage 11 and the fuel scattering end 10 of the rotary vaporizing cylinder 6. A sub-gas outlet 14 communicating with the gas passage 11 is formed between the annular partition wall 13 and the flame wall 3.

Reference numeral 15 denotes an annular opening/closing body disposed at the center of the auxiliary gas outlet 14, and the annular opening/closing body 15 is connected to the rotary vaporizing cylinder 6 by a forward/backward adjusting mechanism as described below.
The annular opening/closing body 15 is moved back and forth along the axial direction of the rotary vaporizing cylinder 6 by the forward/backward adjusting mechanism, so that the sub gas outlet 14 can be adjusted steplessly in a stepless manner. The combustion amount can be increased by adjusting the opening greatly. The aforementioned advance/retreat adjustment mechanism is detailed in FIG.

That is, the free end side of the push-up pin 16 whose base end side is fixed to the annular opening/closing body 15 is extended to the outside through the combustion tube 1 and the outer tube 17 disposed outside the combustion tube 1. A sliding guide tube 1 is provided on the outside of the bottom wall of the tube 17.
8 is mounted downward and the sliding guide tube 18
A sliding ring body 22 is located inside the sliding ring body 22, which has lock teeth 21 carved on the lower edge thereof to mesh with the gear 20 of the rotary knob 19 that is pivoted on the sliding guide tube 18, and the push-up pin 16 is opposite to the sliding ring body 22. A notch 23 is provided in the sliding ring body 22 at the position where the sliding ring body 22 is moved, and a push-up swash plate 24 made of an elastic material and having one end attached to the sliding ring body 22 is disposed in this notch 23 so as to be inclined diagonally downward. Then, the free end side of the push-up pin 16 is mounted on the push-up swash plate 24. One end is attached to the push-up pin 16 located in the ventilation passage 25 formed between the combustion tube 1 and the outer tube 17, and the other end is in contact with the bottom wall of the combustion tube 1. Loading the ammunition 26,
The swash plate 2 for pushing up according to the left and right rotation movement of the sliding ring body 22
The push-up pin 16 mounted on the rotary vaporizing cylinder 6 can be adjusted forward and backward along the axial direction of the rotary vaporizing cylinder 6, and the auxiliary gas outlet 14 is gradually and steplessly opened wide by the backward adjustment operation of the annular opening/closing body 15. It is configured such that the amount of combustion ejected from the auxiliary gas ejection port 14 can be increased by adjusting the amount. The jet wall 3 and the annular partition wall 13 for forming the auxiliary gas jet port 14 are both bent with their tips facing inward to form a narrow shape.

A hollow inverted conical fuel diffuser 27 is fixed to the tip of the rotary vaporizer tube 6 so as to face the tip opening of the blower tube 8 , and the tip of the fuel supply pipe 28 is attached to the circumferential surface of the fuel diffuser 27 . The openings are close together.

Further, an outer cylinder 17 is positioned outside the combustion cylinder 1 so as to surround the combustion cylinder 1, and an air vent whose base end is connected to the air supply chamber 4 via a vent hole 29 is provided between the combustion cylinder 1 and the outer cylinder 17. A passage 25 is formed to prevent burnout by cooling the combustion tube 1, and an appropriate number of sub-vents 29a connected to the ventilation passage 17 are opened on the bottom wall side of the combustion tube 1 to prevent forced airflow. Part of the combustion tube 1 bottom wall and gas chamber 2
The vaporized combustion flame is caused to flow into the combustion tube 1 through a gap a provided between the flame wall 3 and the combustion tube 1, thereby preventing a part of the vaporized combustion flame from remaining on the bottom wall side of the combustion tube 1. 30 is a spark plug.

The embodiment shown in FIG. An annular flame wall 31 is provided on the outside of the gas outlet 14.
are provided at intervals to form an annular gas outlet 32 between the flame wall 3 and the flame wall 31, and the gas outlet 32 is a passage 3 opened in the flame wall 3.
3 to communicate with the auxiliary gas outlet 14, thereby increasing the amount of combustion that is constantly vaporized and combusted, and at the same time making it easier to increase the maximum amount of vaporized combustion.

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

Now, in the embodiment shown in FIG. 1 in which the auxiliary gas outlet 14 is opened by the annular opening/closing body 15, when the burner is started, the rotary vaporizing cylinder 6 is rotated at high speed, and the air is discharged from the air supply chamber 4. Combustion air suitable for performing the minimum amount of vaporization combustion is forced into the rotary vaporization cylinder 6, and at the same time, a portion of the combustion air flows through the ventilation path 25. In this state, if a small amount of fuel is supplied from the fuel supply pipe 28 to the surface of the fuel diffuser 27, the fuel will be atomized by the fuel diffuser 27, and
While moving to the inner surface and further along the rotary vaporizer tube 6, the fuel is dispersed into even finer particles due to the rotation of the rotary vaporizer tube 6 and the jet action of forced air, and then enters the combustion tube 1 from the fuel scattering end 10. It is ejected and ignited by the spark plug 30 to generate raw combustion. When raw combustion occurs in this way, the rotary carburetor 6 is rapidly heated to a high temperature by the heat of combustion, so that a small amount of fuel that is subsequently sprayed into the rotary carburetor 6 is evaporated and vaporized into the air-fuel mixture passage. While flowing through the gas chamber 9, it is mixed with a small amount of combustion air blown from the blower tube 8 to form a mixed gas, which is then transferred to the gas chamber 2.
Air is stored inside. Then, the mixed gas stored in the gas chamber 2 passes through the gas passage 11 and is ejected into the combustion cylinder 1 from the main gas outlet 12 which is always open under constant pressure, and maintains vaporization combustion by ignition. Maximum vaporization combustion suitable for this purpose is successfully achieved.

By the way, while the above-mentioned vaporization combustion is continuing, if you want to maximize the increase in the amount of vaporization combustion, increase the amount of oil and combustion air supplied to generate a large amount of mixed gas, and at the same time turn the rotary knob 21. When sequentially rotated clockwise in FIG. 3, the sliding ring body 22 and the push-up swash plate 24 are both rotated counterclockwise, and the push-up pin 16 mounted on the push-up swash plate 24 is rotated into a restoring ball. It is gradually pushed down by the elasticity of the machine 26. As a result, the annular opening/closing body 15 gradually retreats along the axial direction inside the gas passage 11, and the auxiliary gas outlet 14
is opened from the closed state to the maximum, and a large amount of the mixed gas stored in the gas chamber 2 is connected to the gas chamber 2 through the gas passage 11 and is injected all at once, thereby causing maximum amount of vaporization and combustion. If you wish to steplessly adjust the amount of vaporized combustion ejected from the auxiliary gas outlet 14 for the purpose of use, after appropriately adjusting the amount of oil supplied from the oil supply pipe 28 and the amount of air blown from the air supply chamber 4, turn the rotary knob. 19 clockwise or counterclockwise as appropriate, the sliding ring 22 and push-up swash plate 24 are also rotated clockwise or counterclockwise, and the push-up swash plate 24 mounted on the push-up swash plate 24 is rotated clockwise or counterclockwise. By moving the pin 16 forward and backward with the additional action of restoring elasticity, the annular opening/closing body 15 is opened to adjust the size of the secondary gas outlet 14 in a stepless manner, making it possible to easily obtain the combustion amount in accordance with the purpose of use. .

In short, the present invention, as described above,
Even if an annular gas passage 11 is provided between a fuel splashing end 10 provided on the open base end side of the gas chamber 2 and the flame wall 3 of the gas chamber 2, there is no fuel splashing end in the gas passage 11. 10, an annular partition wall 13 defining a main gas outlet 12 is installed and positioned to form a secondary gas outlet 14 between the annular partition wall 13 and the flame wall 3. An annular opening/closing body 15 is disposed at the center of the rotary vaporizing cylinder 6 so as to be adjustable forward and backward along the axial direction of the rotary vaporizing cylinder 6.
By retracting the auxiliary gas nozzle 14, the opening of the secondary gas nozzle 14 can be successively and steplessly adjusted to a larger opening, so that the main gas nozzle 12 always has the necessary gas to continue vaporization and combustion under good conditions for a long period of time. The mixture gas ejected from the auxiliary gas outlet 14 is adjusted by the forward/backward adjusting operation of the annular opening/closing body 15 while maintaining the minimum combustion amount to ensure generation of the mixture gas, thereby achieving the minimum combustion amount and maximum combustion amount. The amount of combustion can be easily and steplessly adjusted between the amount of heat and the amount of combustion, making it possible to effectively use it as a multipurpose heating source.

[Brief explanation of drawings]

The drawings show an embodiment of the apparatus of the present invention, in which FIG. 1 is a partially cutaway longitudinal front view in the lowest combustion state, FIG. 2 is a partially cutaway longitudinal front view in the maximum combustion state, and FIG. FIG. 3 is a partially cutaway enlarged perspective view showing a forward/backward adjusting mechanism for the annular opening/closing body, and FIG. 4 is a partially cutaway longitudinal sectional front view showing another example of the sub gas outlet. 1... Combustion tube, 2... Gas chamber, 3... Flame wall,
6... Rotating carburetor cylinder, 10... Fuel scattering end, 11...
...Gas passage, 12... Main gas outlet, 13... Annular partition wall, 14... Sub-gas outlet, 15... Annular opening/closing body.

Claims (1)

[Claims] 1. A rotary vaporizer cylinder with a closed tip and a fuel scattering end formed on the open base side is rotatably positioned in the center of a gas chamber with the open base side provided on the bottom wall side of the combustion cylinder, and the fuel scattering of the rotary vaporizer cylinder is performed. An annular gas passage is formed between the end and the flame wall of the gas chamber, and an annular partition wall is installed in the gas passage to define a main gas outlet between the end and the fuel splashing end. At least a sub-gas outlet is formed between the annular partition wall and the flame wall, and an annular opening/closing body is disposed at the center of the auxiliary gas outlet so as to be freely adjustable forward and backward along the axial direction of the rotary vaporizing cylinder. A combustion amount adjusting device for a vaporizing burner, characterized in that by retracting the annular opening/closing body at the same time, the opening of the auxiliary gas nozzle can be successively and steplessly adjusted to a larger opening.