JPS6019402B2 - combustion device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion device that can optionally use either oil fuel or gas fuel.

A rotary vaporizer is installed in the combustion cylinder, and the fuel that is supplied with forced air into the rotary vaporizer is atomized into the combustion cylinder and burnt live, and the fuel is converted into evaporated gas by heating the rotary vaporizer by the live combustion flame. In a vaporizing burner that completely gasifies fuel and then combusts it, it is also possible to burn gas fuel with this vaporizing burner.

However, when fuel oil is vaporized and burned, the fuel is diffused into fine particles inside the rotary vaporizer and then evaporated and vaporized, and this vaporized gas is mixed with forced air, so a homogeneous dense gas is generated. On the other hand, in the case of gas fuel, because the gas fuel is intensively supplied from the nozzle at the end of the gas pipe facing into the rotary vaporizer, uneven mixing of the gas fuel and forced wind tends to occur. The combustion condition tends to become unstable due to the loss of homogeneity. In view of the above, the present invention provides oil fuel and gas fuel that can always generate homogeneous passing gas and maintain a stable combustion state, not only in the case of oil fuel but also in the case of gas fuel. DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is intended to provide a shared combustion device, and the configuration of the present invention will be described below with reference to a preferred embodiment shown in the drawings.

Reference numeral 1 denotes a combustion tube with an open tip and a closed base end. Inside the combustion tube 1, a cylindrical combustion disk 3 with a large number of flame holes 2 is inserted. A gas chamber 4 whose tip side is sealed is formed between the cylinders 1.

Reference numeral 5 denotes a cylindrical rotary vaporizer whose tip end is closed and whose base end is open, and the rotary vaporizer 5 is placed over the tip of a rotating shaft 6 that is inserted into the interior of the combustion tube 1 from the base end side. Fixed in condition.

Further, a fuel scattering annular body 8 is attached to the base edge of the rotary vaporizer 5 so as to rotate integrally therewith while maintaining a fuel jetting gap 7, and 8a is the fuel scattering end thereof. A warm air chamber 10 is formed between the fuel oil scattering annular body 8 and the base end surface of the combustion disk 3 with a rotational gap 9 therebetween, and a warm air gap 11 is formed between the warm air chamber 10 and the base end surface of the combustion disk 3. has been done. Fumarole chamber 1
The combustion tube 1 is connected to a blow chamber 12 provided at the base end thereof, and the blow tube 13 whose base end is connected to the blow chamber 12 is closed near the tip inside the rotary vaporizer 5. An air mixture passage 14 is formed between the blow tube 13 and the inner peripheral surface of the rotary vaporizer 5. The base end side of the air mixture passage 14 is communicated with the gas chamber 4 . Reference numeral 15 denotes a fuel oil diffuser, and the fuel oil diffuser 15 is fixed to the tip of the rotary vaporizer 5 so as to rotate integrally therewith.

The fuel oil diffuser 15 is a hollow cylindrical body that gradually expands toward the tip of the rotary vaporizer 5, and has a large number of gas moats 16, 16, . is perforated, and a fumarole gap 17 is formed at the distal end attachment portion of the fuel oil diffuser 15. The interior of the fuel oil diffuser 15 serves as a gas transfer chamber 18. Reference numeral 19 denotes a fuel supply pipe for supplying fuel, and the tip of the fuel supply pipe 19 faces a position close to the outer peripheral surface of the fuel diffuser 15.

Further, the gas pipe 20 is a gas pipe for supplying gas fuel, and the tip nozzle portion 20a of the gas pipe 20 is inserted into the gas chamber 18 in the fuel diffuser 15. 21 is a spark plug.

In addition, 22 is a water supply pipe for serving as a hydration burner,
The tip of the water supply pipe 22 faces close to the tip shoulder inside the rotary vaporizer 5.

Water-added burners mix vaporized fuel gas or mixed gas steam with gas fuel and forced air, and burn water as part of the fuel, which can save fuel. For example, the water-added burner is disclosed in Patent No. 9134.
No. 54 (Special Publication No. 52-41495), Patent No. 9211
No. 62 (Japanese Patent Publication No. 52-49566), which has already been developed by the applicant. Next, the operation of the present invention will be explained.

Now, when using oil fuel, to start the combustion machine, the rotary vaporizer 5 is rotated at high speed, forced air is blown from the blower chamber 12 to the blower tube 13, and the fuel supply pipe 19 is
When fuel is supplied into the rotary vaporizer 5, the fuel is subjected to centrifugal force on the outer circumferential surface of the fuel diffuser 15, and is diffused into fine particles inside the rotary vaporizer 5, and also flows through the fuel injection gap 7 of the rotary vaporizer 5.
The fuel is atomized and scattered into the combustion tube 1 from the fuel scattering end 8a of the fuel scattering annular body 8.

Therefore, when the ignition plug 21 is energized and ignited, a live combustion flame is generated in the combustion tube 1, and the rotary vaporizer 5 is quickly heated to the fuel vaporization temperature by the live combustion flame. The supplied and diffused fuel is evaporated and vaporized into the air passageway 1.
Inside the gas chamber 4, it is mixed with forced air blown from the blower tube 13 to form a moat gas, and the mixed gas is stored in the gas chamber 4 and sent through a number of flame holes 2 while maintaining a constant pressure. The gas is ejected into the combustion tube 1, and vaporization combustion continues within the combustion tube 1. On the other hand, when using gas fuel, the rotary vaporizer 5 is rotated at high speed in the same way as in the case of using oil fuel, forced air is blown into the rotary vaporizer 5 from the ventilation chamber 12, and then the gas is When the fuel is supplied, the gaseous fuel is ejected from the nozzle part 20a in the gas mixture chamber 18 in the fuel oil diffuser 15, and the gas mixture chamber 18 is filled with the forced air blown from the blowing node 13. The gas mixture is mixed to become a gas mixture, and the gas mixture hole 16,
16. It erupts from...

Then, the mixed gas ejected from the gas mixing holes 16, 16, etc. is further mixed with the forced air blown from the blower tube 13 in the mixed air passage 14 in the rotary vaporizer 5, and Since air is stored in the combustion chamber 4 and ejected at a constant pressure into the combustion cylinder 1 from a large number of flame holes 2, when it is ignited with the spark plug 21, a combustion state similar to the vaporization combustion of fuel can be immediately achieved. By the way, when using the gas fuel described above, the gas fuel is intensively jetted and supplied from the tip nozzle portion 20a of the gas pipe 20, but the gas fuel supply position is the air mixture chamber 18 formed by the fuel oil diffuser 15. Therefore, the gas fuel diffuses and fills the gas chamber 18 and is mixed with the forced air sent from the blast tube 13, and the gas fuel and the forced air are evenly mixed.

Moreover, since the humid gas is mixed with the forced air again in the purification passage 14, even when gas fuel is used, homogeneous crane gas is generated in the same way as when oil fuel is used. Stable combustion can be achieved. Note that the aqueous gas is also ejected from the gas humidity chamber 18 into the fumarole gap 17, which prevents the tip of the rotary vaporizer 5 from overheating. During vaporization and combustion of oil fuel, forced air is blown out from the warm air gap 17, and a similar overheating prevention effect can be obtained. When the combustion device is a water burner, if an appropriate amount of water is supplied from the water supply pipe 22 during vaporization combustion of oil fuel or combustion of gas fuel,
Water vapor is mixed with the whisker gas, and the water can be used as part of the fuel. In this case, the water supplied from the water supply pipe 22 to the shoulder on the tip side of the rotary vaporizer 5 acts to cool the tip of the rotary vaporizer 5, which effectively prevents the tip of the rotary vaporizer 5 from overheating. This will be done in a targeted manner. In short, the present invention provides a cylindrical rotary vaporizer 5 with a closed tip and an open base end in a combustion tube 1, and fixes a hollow cylindrical fuel diffuser 15 to the tip of the rotary vaporizer 5. , the tip of the fuel supply pipe 19 for supplying fuel is exposed to a position close to the outer peripheral surface of the fuel oil diffuser 15, and a large number of gas mixture holes 16, 16, . Then, the interior of the fuel oil diffuser 15 is made into a gas transfer chamber 18, and the tip nozzle portion 20a of the gas pipe 20 for supplying fuel gas is inserted into the gas mixture chamber 18. Also, a homogeneous strained gas can be generated by diffusing and filling the gas mixture chamber 18 with gas fuel jetted from the tip nozzle portion 20a of the gas pipe 20, and then mixing it with forced air. As in the case of vaporization combustion of oil fuel, it is possible to maintain a stable combustion state at all times.

[Brief explanation of the drawing]

The drawings show an embodiment of the combustion apparatus according to the present invention, in which FIG. 1 is a partially cutaway vertical side view, and FIG. 2 is an enlarged vertical side view of the main part thereof. 1... Combustion tube, 5... Rotary vaporizer, 15... Fuel diffuser, 16... Gas hawk vent, 18... Gas mud chamber, 19. ．． ．． Fuel supply pipe, 20... Gas pipe, 20a...
Its tip nozzle part. Figure 1 Figure 2

Claims (1)

[Claims] 1 A cylindrical rotary vaporizer with a closed tip and an open base end is provided in the combustion cylinder, a hollow cylindrical fuel diffuser is fixed to the tip of the rotary vaporizer, and a hollow cylindrical fuel diffuser is fixed near the outer peripheral surface of the fuel diffuser. At the same time, a number of gas mixture holes are bored on the circumferential surface of the fuel diffuser to form a gas mixture chamber inside the fuel diffuser, and the fuel gas is poured into the gas mixture chamber. A combustion device characterized by inserting a nozzle at the end of a gas pipe that supplies gas.