JPS6026257Y2 - oil burner - Google Patents

Description

[Detailed description of the invention] This invention relates to an oil combustor that vaporizes and burns kerosene.
In particular, in devices that operate the needle that cleans the vaporizer nozzle (hereinafter referred to as the nozzle) by thermal deformation of the bimetal, the temperature of the bimetal is efficiently brought to the same temperature as the vaporized gas, and the bimetal is collected in the bimetal case that houses the bimetal. It is designed to liquefy vaporized gas and return it to the vaporization cylinder.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a schematic configuration diagram of an oil combustor showing an embodiment of the present invention, and FIG. 2 is a sectional view of the main part configuration of FIG. 1.

In the figure, reference numeral 1 denotes a brass vaporizer main body with a nozzle body 3 screwed onto the front, which has a nozzle body 2 formed with a spout (hereinafter referred to as nozzle), and a vaporizer consisting of a stainless steel pipe connected to the lower part by brazing. A cylinder 4 is provided.

Reference numeral 5 denotes a carburetor joint which is brazed to the lower part of the carburetor cylinder 4, and an oil feed pipe 9 for supplying kerosene 7 from the fuel tank 6 by an electromagnetic pump 8 is connected to one side by a fukuro nut 10. On the other side, a drain pipe 11 that returns to the fuel tank 6 side is connected to a water nut 12.
are connected by.

Reference numeral 13 denotes a valve that closes when energized, and is heated to a predetermined temperature (
When the temperature reaches a temperature sufficient to vaporize the kerosene, it is energized and closed, and kerosene does not return to the fuel tank 6 from the vaporization tube 4 via the drain pipe 11.

Therefore, the oil feed pipe 9 and the drain pipe 11 form a circulation path.

Reference numeral 14 denotes a vaporization stabilizing material inserted into the vaporization cylinder 4, which is made of foamed metal, sintered metal, or the like and molded into a round rod shape.

A cap 15 is screwed onto the lower part of the carburetor joint 5, and is sealed with an O-ring 16.

17 is a needle body provided with a cleaning needle 18 for cleaning the nozzle 2, and 19 is a needle body that is sealed to the vaporizer body 1 via a gasket 20, and has a bimetal 21 inside.
It is a bimetallic case that stores the.

Reference numeral 22 designates an escape hole through which vaporized kerosene accumulates in the bimetal case 19 and returns to the vaporizer cylinder 4 after being liquefied, and passes through the vaporizer main body 1.

23 is the bimetal 2 at the rear end of the needle body 17.
This is an E-ring made by connecting 1.

The upper part 1' of the vaporizer main body 1 is disposed to pass through the center of the burner 24, and is directly heated by the combustion flame 25 during steady combustion, recovers self-heat, and conducts it to the vaporizer cylinder 4. The amount of electricity supplied to the preheating heater during steady combustion is minimized.

22' is a communication passage that communicates with the bottom of the bimetallic case 19 and the carburetor joint 5 attached to the lower part of the vaporizing cylinder 4, and is used to vaporize vaporized gas or liquefied gas accumulated in the bimetallic case 19. It is provided for returning into the cylinder 4.

Since this communication passage 22' does not pass through the vaporizer main body 1, the vaporized gas is efficiently cooled by the atmosphere, and then liquefied and sent to the vaporization cylinder 4 side.

Next, the operation of the oil combustor of the present invention having the above configuration will be briefly explained.

First, when the operation switch (not shown) is turned on, the preheating heater (not shown) attached to the carburetor body 1 is energized, the electromagnetic pump 8 starts operating, and the oil is sent through the oil pipe 9. Oil is fed into the vaporizer cylinder 4.

Until the vaporizer main body 1 rises to a predetermined temperature,
When the energized closed valve 13 is opened, the kerosene in the vaporization cylinder 4 returns to the fuel tank 6 side.

Then, the vaporizer main body 1 reaches a predetermined temperature (approximately 240 to 28
0° C.), the energized-closed valve 13 is energized and closed.

Therefore, kerosene does not return from the drain pipe 8 to the fuel tank 6, and begins to accumulate in the vaporizer tube 4.
When the oil level inside reaches a certain value, the oil gradually begins to vaporize from the top.

As the temperature of the vaporizer body 1 rises, the bimetal 21 in the bimetal case 19 undergoes thermal deformation, pulling the needle body 17 in the direction of the arrow to remove the cleaning needle 1.
8 is removed from the nozzle 2, vaporized gas is ejected.

The ejected vaporized gas is sucked into the mixing pipe 26 of the burner 24, and then becomes a combustion flame 25 that is ignited in the burner 24 by a well-known ignition means.

If the area of the escape hole 22 is made larger than the area of the nozzle 2, the gas within the vaporization tube 4 will circulate in the direction of arrow B due to the temperature difference.

Thereby, the temperature of the bimetal 21 can be kept constant and close to the temperature of the vaporized gas, so the cleaning needle main body 17 can be set at a constant position.

Further, the liquefied vaporized gas is efficiently cooled by the atmosphere through the communication passage 22' and returned to the vaporization cylinder 4, so that almost no residual vaporized gas remains in the bimetal case 19.

Next, when extinguishing a fire, when the operation switch is turned OFF, the electromagnetic pump 8, the energized closed valve 13, etc. are de-energized, and the energized closed valve 13 opens, so the drain pipe 1
1, the vaporized gas in the vaporization cylinder 4 is sucked in, and the internal pressure drops rapidly.

Therefore, even if the temperature of the vaporizer main body 1 does not drop to room temperature immediately after the fire is extinguished and the nozzle 2 is open, the internal pressure of the vaporization chamber 4 drops instantly immediately after the fire is extinguished, causing the vaporization to be ejected from the nozzle 2. There is almost no gas, there is no smoke or odor, and the extinguishing time is very short, comparable to ordinary city gas, and the operation is reliable.

On the other hand, as the temperature of the vaporizer main body 1 gradually decreases, the bimetal 21 slowly moves in the direction opposite to the arrow A, so that the cleaning needle 18 is inserted into the nozzle 2 and becomes penetrating.

As explained above, the present invention is equipped with a vaporizer equipped with a bimetal that operates depending on the temperature of the vaporizer, and a needle that cleans the spout of the vaporizer in conjunction with the bimetal. A bimetal case for storing the bimetal is installed in the vaporizer body, and a communication path is provided to communicate the bimetal case with the vaporizer, so that the temperature of the bimetal can be efficiently brought to the same temperature as the vaporized gas. It has high practical value, as it can liquefy the vaporized gas that accumulates in the bimetallic case and return it to the vaporization cylinder, and it also makes it possible to hold the needle body in a fixed position.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of an oil combustor showing an embodiment of the present invention, and FIG. 2 is a sectional view of the main part configuration of FIG. 4 is a vaporizer cylinder,
17 is a needle body, 18 is a cleaning needle, 19 is a bimetal case, 21 is a bimetal, 22 is an escape hole,
22' is a communication path.

Claims (1)

[Scope of utility model registration request] The vaporizer is equipped with a bimetal actuated by the temperature of the vaporizer, and a needle that is linked to the bimetal and cleans the spout of the vaporizer, and the bimetal case housing the bimetal is attached to the vaporizer body. An oil combustor characterized in that the bimetallic case is installed in the combustor, and a communication path is provided to communicate the bimetallic case with the vaporizer.