JPS6238098Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention automatically transfers the delivered fuel from the raw combustion state by accurate spraying action and uniform scattering action even if the vaporizer cylinder installed in the combustion cylinder is not rotating. The present invention relates to a vaporizing burner that can quickly shift to a stable vaporizing combustion state.

A scattering body is directly connected to the tip of a long rotating shaft, and a scattering plate is directly connected to the middle of the shaft to scatter the sent fuel into the vaporization cylinder, which is arranged in a non-rotating state inside the combustion cylinder, and further vaporize it. A vaporizing burner that scatters the fuel flowing down from the cylinder into the combustion cylinder and automatically transitions the fed fuel from a raw combustion state to a vaporization combustion state, or a scattering plate and a fuel spray body that are rotated by circulating forced air. As a result, the fuel to be sent is sprayed into the vaporization cylinder, which is disposed in a non-rotating state inside the combustion cylinder, and the fuel that has flowed down from the vaporization cylinder is further scattered into the inside of the combustion cylinder to produce the fuel to be sent. A vaporizing burner that automatically shifts from a combustion state to a vaporizing combustion state was previously developed by the applicant as described in Japanese Utility Model Publication No. 52-33932 and Japanese Utility Model Publication No. 52-47157, respectively.

By the way, in the former type of vaporizing burner, the fuel scattering effect into the vaporizing cylinder and the combustion cylinder was performed by a scattering body and a scattering disk that were directly connected vertically to a long rotating shaft, so it was difficult to accurately balance the entire rotating shaft. This causes rotational vibration, making it impossible to disperse the supplied fuel in an even amount, making it impossible to obtain stable raw combustion and vaporized combustion.

In addition, even in the latter type of vaporizing burner, uneven rotation is likely to occur due to wear of the shaft part of the scattering plate, and the starting speed of live combustion is delayed because the scattering plate cannot reach the specified rotation speed from the time of startup. Needless to say, the rotational speeds of the scattering disks are not unified, which causes the inconvenience that raw combustion and vaporized combustion states cannot be stabilized, and there is a strong desire to improve this problem.

In view of the above, in the present invention, a scattering disk directly connected to a hollow rotating shaft inserted into the blower tube is rotatably positioned at the open end of the vaporizing tube with a scattering gap, and the vaporizing disk is attached to the hollow rotating shaft. A fuel supply pipe for spraying atomized fuel is installed on the inner peripheral surface of the cylinder to prevent uneven rotation of the scattering plate even if it is installed in the combustion cylinder with the vaporization cylinder not rotating. At the same time, it rotates accurately without causing vibration or rotational vibration, and at the same time allows the scattering plate to rotate normally from the time of startup, and the supplied fuel is further atomized by the spraying and scattering action again, resulting in good raw combustion without delay. The purpose of this invention is to provide a vaporizing burner that can quickly transition to vaporizing combustion, and the structure of the vaporizing burner according to the present invention will be described below with reference to a preferred embodiment shown in the accompanying drawings. do.

In the drawings, reference numeral 1 denotes a combustion tube having an open front end and a blower tube 2 inserted through the base end, and a combustion disk having a large number of gas ejection ports 4 perforated in the inner peripheral surface of the combustion tube 1. 3 and the inner surface of the combustion tube 1 and the combustion plate 3.
A gas chamber 5 is formed between the outer surface of the In an opening 6 formed at approximately the center of the gas chamber 5, a vaporizing tube 7 whose proximal end is open and communicates with the gas chamber 5 is fixedly opposed via a mounting rod 8. and position it inside the combustion tube 1.

The open end edge of the vaporizing tube 7 is bent inward to form an air mixture plate 9, and a large number of outflow holes 10 are bored around the air mixture plate 9. 11 is the blower tube 2
A scattering disk 13 is a hollow rotating shaft inserted into the hollow rotating shaft 11 and is positioned on the tip side of the hollow rotating shaft 11 so that an appropriate scattering gap 12 is formed between it and the open end of the vaporizing cylinder 7. are directly connected. A guide tube 14 whose proximal open side is connected to the distal end side of the blower tube 2 and whose distal end side is open into the vaporizing tube 7 is mounted integrally with the vaporizing tube 7 at the internal center position of the vaporizing tube 7 by means of a mounting plate 15. There is. The above-mentioned scattering plate 13 is entirely formed into a flat plate shape, and has a fuel scattering end 16 that is inclined obliquely outward at the peripheral end, and an inner side located at the connection between the blower tube 2 and the guide tube 14. The board surface bulges out to form an annular bulging step 17, the tip side of the blow tube 2 faces the inside of the bulge step 17 through the rotation gap 18, and the base end of the guide tube 14 is rotated. It is made to face the outside of the bulging step part 17 through the gap 19 to prevent forced air or mixed gas from leaking from the connection position. In addition, a ventilation window 20 of an appropriate size is opened on the panel surface facing the open end side of the blower tube 2, and a gas ventilation window 21 is opened on the panel surface facing the open base end side between the vaporization tube 7 and the guide tube 14. is opened.

Reference numeral 22 denotes an oil pipe that is housed in a non-rotating state inside the hollow rotary shaft 11, and a fuel spray body 23 provided at the tip of the oil pipe 22 is positioned within the guide tube 14 to feed the oil. The fuel is evenly sprayed toward the inner circumferential surface of the carburetor cylinder 7.

Incidentally, the fuel flowing out from the outflow hole 10 provided in the vaporization cylinder 7 is necessarily received by the rotating scattering plate 13 and is scattered toward the combustion plate 3 from the fuel scattering end 16.

24 is a spark plug.

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

Now, combustion air is blown from the blower tube 2 through the guide tube 14 into the vaporization tube 7, and at the same time, the hollow rotating shaft 11
The scattering plate 13 is rotated. After that, the combustion air blown into the carburetor tube 7 is blown along the entire inner circumference of the carburetor tube 7, and then enters the gas chamber 5 through the gas ventilation window 21 from the open base side, and enters the gas chamber 5 through the gas ventilation window 21 from the open base side. The gas is ejected all at once from the gas outlet 4 toward the vaporizer tube 7 . If fuel is supplied into the oil pipe 22 under such conditions, the supplied fuel will be sprayed evenly and finely by the fuel spray body 23 toward the inner circumferential surface of the vaporizer cylinder 7, and will be sprayed. While the atomized fuel moves along the inner circumferential surface toward the open base side, it is further diffused into a thin layer, becomes finer particles, and is deposited on the rotating scattering plate 13 through the numerous outflow holes 10. The fuel flows down, and due to the centrifugal action caused by the rotation, it becomes fine particles from the fuel scattering edge and reaches the combustion disk 3.
It is scattered on the inner surface, and ignition quickly generates raw combustion. When starting this raw combustion, the scattering plate 13
Because it is forcibly rotated by a short hollow rotating shaft 11, live combustion starts quickly, and also eliminates uneven rotation and rotational vibration, scattering an appropriate and even amount of fuel, and quickly generating stable live combustion. can be done.

When raw combustion occurs as described above, the raw combustion flame heats not only the vaporization tube 7 but also the gas chamber 5 to a considerable temperature, so that the fuel spray body 23 then burns the gas chamber 5 into the vaporization tube 7. The fuel sprayed together with the air for combustion is diffused and transferred along the inner circumferential surface of the vaporization tube 7 and evaporates into vaporized gas, and the generated vaporized gas is mixed with air for combustion by the air mixture plate 9. The mixture is stirred and mixed to form a complete mixed gas, which passes through the gas ventilation window 21 and is pressurized into the gas chamber 5 through the opening 6. After that, it is emitted from the numerous gas outlets 4 under a constant pressure condition, and the previous gas is injected into the gas chamber 5 through the opening 6. A blue vaporized combustion flame ignited by the raw combustion flame is ejected toward the vaporization cylinder 7, thereby heating the vaporization cylinder 7. Therefore, when vaporization combustion occurs, the vaporization cylinder 7 is continuously heated by the vaporization combustion flame, so that accurate vaporization combustion can be continued at all times while fuel is being supplied and combustion air is being replenished. .

In short, the present invention has a scattering plate 13 directly connected to the hollow rotating shaft 11 inserted into the blower tube 2 at the open end of the vaporizer tube 7, which is rotatably positioned with a scattering gap 12 therebetween. Inside is a fuel supply pipe 22 that sprays atomized fuel onto the inner circumferential surface of the carburetor cylinder.
Even if the vaporizer tube 7 is placed in the combustion tube 1 in a non-rotating state, the rotating shaft can be made very short to prevent uneven rotation and rotational vibration of the scattering disk 13. This is because it scatters an equal amount of fuel in fine particles without causing any generation, and allows for the generation of live combustion to occur properly.The start-up of live combustion is quick and the transition to the vaporized combustion state is facilitated, and at the same time vaporization occurs. This has the effect of making maintenance management such as replacing parts of the burner easier.

Note that the hollow rotating shaft 11 can be rotated by power transmitted from another transmission device in addition to the electric motor.

[Brief explanation of the drawing]

The drawings show an 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 plan view of a scattering disk. 1... Combustion tube, 2... Blower tube, 3... Combustion plate,
5... Gas chamber, 7... Vaporization cylinder, 11... Hollow rotating shaft, 12... Scattering gap, 13... Scattering plate, 22...
...Fuel supply pipe.

Claims (1)

[Scope of utility model registration request] A gas chamber is formed by inserting a blower tube into the base end and a combustion disk is stretched over the inner circumferential surface to form a gas chamber, and the vaporization tube, in which the gas chamber and the open base end communicate with each other, is placed in a non-rotating state. In this arrangement, a scattering plate directly connected to a hollow rotating shaft inserted into the blower tube is rotatably positioned at the open end of the vaporizing tube with a scattering gap, and a scattering disk is rotatably connected to the hollow rotating shaft inserted into the blower tube. A vaporizing burner characterized in that a fuel supply pipe for spraying atomized fuel is housed on the inner peripheral surface of the vaporizing cylinder.