JPS6133374Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a liquid fuel combustion device.

[Conventional technology]

An example of a liquid fuel combustion device, which is the premise of this invention, is shown in FIG. That is, to explain using the reference numerals, 1b is an upper housing with an atomization chamber 1a on the top.
The upper half of the fan casing 2a is formed on the lower surface. Reference numeral 2b designates a middle housing having the lower half of the fan casing 2a formed on its upper surface and the upper half of the motor casing 3a formed on its lower surface. 3b is a lower housing having a lower half of a motor casing 3a formed on its upper surface and a pump casing 5a formed at its lower part. 4a is a fuel tank, and a gasket 4b is sandwiched between it and the lower housing 3b to provide an oil seal. The respective housings are coaxially fitted together by a protrusion 5b formed on the connecting surface, and are connected by a through screw (not shown) passed through a screw hole (not shown).

The rotating plate 6, fan device 7, and pump device 8 are fixed to a rotating shaft 9 and driven by a motor 10. 11
a is formed in each housing in the liquid feeding path, and 1
1b is an oil gasket inserted into each connecting surface. Reference numeral 12a denotes return oil passages formed in the upper housing 1b, middle housing 2b, and lower housing 3b, each connecting surface of which is sealed with an oil packing 12b, and 12c is an extension pipe continuous to the lower end thereof. Reference numeral 13 designates an atomized fuel outlet provided in the atomization chamber 1a, the degree of opening of which is varied by a fuel damper 14 disposed inside the atomized fuel outlet, and 15 designates an operating lever for adjusting the fuel. A fixed plate 16a constituting the air damper is fixed to the upper housing 1b, and the degree of opening is changed by the movable plate 16b. The interlocking sleeve 17a connects the movable plate 16b at its lower part, and the projecting piece 18a extending from its upper part engages with the fuel damper 14, so that the opening and closing of the fuel damper 14 and the movable plate 16b are interlocked.
19a is an air chamber formed in the lower part of the atomization chamber 1a and communicates with the air outlet 20a. 21 is a vaporization chamber, and 22 is a heat insulating member. 23a is an air intake port provided in the middle housing.

Next, the operation will be explained. That is, when the motor 10 is driven by a switch linked to the operating lever 15, the rotating plate 6, the fan device 7, and the pump device 8 are activated.
rotates, and air is taken in from the air intake port 23a and supplied to the atomization chamber 1a. On the other hand, oil
The liquid moves from the fuel tank 4a through the pump device 8 through the liquid feeding path 11a, falls onto the rotating plate 6 of the atomization chamber 1a, and is scattered radially and atomized by the rotation of the rotating plate 6. The amount of atomized fuel supplied to the vaporization chamber 21 is controlled by adjusting the opening amount of the fuel damper 14 by operating the control lever 15, and at the same time, the amount of air supplied is adjusted in conjunction with the operation of the fuel damper 14. .

[Problem that the invention attempts to solve]

In this liquid fuel combustion device, even if the operation lever 15 is closed when a fire is extinguished and the drive of the motor 10 is stopped by a switch interlocked with this, the rotating shaft 9 rotates due to inertia, and the rotating plate 6 and the fan device are rotated. 7 and the pump device 8 rotate, liquid fuel is sent to the rotary tray 6, and further enters the high-temperature vaporizer 21, producing raw gas and a strong odor. Furthermore, there is also the drawback that tar adheres to the surface.

Therefore, an object of this invention is to provide a liquid fuel combustion device that prevents generation of raw gas and adhesion of tar during shutdown operations.

[Means for solving problems]

The liquid fuel combustion device of this invention includes a fuel tank, a pump device for pumping the liquid fuel in the fuel tank, a liquid feeding path for transferring the liquid fuel by the pumping device, and an outlet of the liquid feeding path. an atomization chamber that atomizes liquid fuel, a fan device that supplies air to the atomization chamber, a vaporization chamber that is connected in communication with the atomization chamber and vaporizes the atomized fuel, and the atomization chamber and the vaporization chamber. A liquid fuel combustion device comprising: a fuel damper provided between a chamber and a fuel damper for controlling the amount of fuel; and an operation lever for operating the fuel damper, the pump device and the fan device being driven by one motor. , a supply stop valve for cutting off liquid supply is provided in the liquid supply path, and the operation lever, the fuel damper, the motor, and the supply stop valve close the fuel damper when the operation lever turns off the fuel, and the supply stop valve closes the fuel damper and stops the motor. The supply stop valve is linked by an interlocking member so that the supply stop valve is closed at the same time as the drive of the supply stop valve is stopped.

[Effect]

According to the configuration of this invention, the pump device and fan device are stopped by the extinguishing operation using the control lever, and the supply stop valve is closed at the same time as the fuel damper is closed, thereby reliably preventing the generation of raw gas and the adhesion of tar. can do.

〔Example〕

An embodiment of this invention is shown in FIGS. 2 and 3. That is, in this liquid fuel combustion apparatus, an atomization chamber 1a and a liquid feeding path 11a are formed in the upper part of the upper housing 1b in the one shown in FIG.
A valve seat 1c and a valve guide portion 1d are provided, and an upper half of a fan casing 2a is formed in the lower part of the upper housing 1b. The supply stop valve 25 can move up and down while being guided by the guide portion 1d, a packing 26, and a valve cover 27, and is pulled up by a spring 28. On the other hand, a cam 15a is provided on the operating lever 15, and the upper end of the valve stem of the supply stop valve 25 is engaged with the operating lever 15.
The supply stop valve 25 is configured so that when the switch 5 is operated from "weak" to "strong", the supply stop valve 25 opens, and when the switch is operated from "weak" to "off", the supply stop valve 25 is closed. Others are the same as those in FIG.

With this configuration, when the operation lever 15 performs the extinguishing operation, the operation lever 15 moves to the off position, and the supply stop valve 2 is closed via the cam 15a.
5 descends and cuts off the liquid feeding path 11a. Therefore, the combustion is instantly extinguished and at the same time the liquid supply to the rotary plate 6 is cut off, so that the generation of raw gas from the vaporization chamber 21 is eliminated, the odor is reduced, and tar adhesion to the vaporization chamber 21 is also suppressed. Other operations are similar to those in FIG.

[Effect of idea]

According to the liquid fuel combustion device of this invention, the pump device and the fan device are stopped by the extinguishing operation using the operating lever, and the supply stop valve is closed at the same time as the fuel damper is closed, thereby preventing the generation of raw gas and the adhesion of tar. This has the effect of being able to reliably prevent this.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of a combustion device that is the premise of this invention, FIG. 2 is a vertical cross-sectional view showing an embodiment of this invention, and FIG. 3 is a plan view thereof. 1a...Atomization chamber, 4a...Fuel tank, 7...
Fan device, 8...Pump device, 10...Motor, 11a...Liquid feeding path, 14...Fuel damper,
15...operation lever, 21...vaporization chamber, 25...
Supply stop valve.

Claims (1)

[Scope of utility model registration request] A fuel tank, a pump device for pumping the liquid fuel in the fuel tank, a liquid feeding path for transferring the liquid fuel by the pumping device, and an atomization chamber provided at the outlet of the liquid feeding path for atomizing the liquid fuel. a fan device that supplies air to the atomization chamber; a vaporization chamber that is connected in communication with the atomization chamber to vaporize the atomized fuel; In a liquid fuel combustion device, the liquid fuel combustion device includes a fuel damper for controlling the amount of fuel, and an operation lever for operating the fuel damper, and the pump device and the fan device are driven by one motor, and the liquid fuel is fed to the liquid feeding path. The control lever, the fuel damper, the motor, and the supply stop valve are provided with a supply stop valve that shuts off the fuel, and the control lever, the fuel damper, the motor, and the supply stop valve close the fuel damper and stop the supply at the same time as the fuel cutoff operation of the control lever stops the drive of the motor. A liquid fuel combustion device that uses an interlocking member to close the valve.