JPH09303766A - Petroleum combustion appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely supply fuel by stopping combustion if light incident on a fuel intake is sensed when the intake is opened during the combustion to bring into a fire extinguishing state, thereby opening the intake during the combustion. SOLUTION: Photosensing means 11 is constituted by a photosensor 13 for outputting a sense signal when sensing a light by using a photoconductive cell called 'CdS#' or a photodiode. The photosensor 13 is fixed to the position where a photosensing part 16 at the end of the photosensor 13 can sense the light incident in a fuel intake 6 at the time of opening the intake 6. When the intake 6 is opened, the light around the petroleum combustion appliance is incident from an opening 8 into the intake 6, the light is sensed by the photosensor 13 of photosensing means 12, and the signal is output to a controller. When the controller inputs the signal, it judges that a fuel supply cap is removed and the intake 6 is opened, immediately stops the combustion in the case of the combustion to bring into a fire extinguishing state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil burning appliance for heating in which a fuel tank and a burning appliance body are integrated.

[0002]

2. Description of the Related Art Conventionally, in this type, when supplying fuel to a fuel tank which is integrated with the body of an oil burning appliance, a fuel filler cap for opening and closing a fuel filler port provided on the body is removed. The fuel filler was opened to refuel, and when refueling was completed, the refueling cap was attached again to close the fuel filler. However, this refueling cap can be removed freely even during combustion, so if refueling is mistakenly performed during combustion, the combustion will become abnormal combustion, which will cause a fire or open during combustion. There was a danger that fuel would spill from the fuel filler port and the burning flame would ignite, causing a fire.

Therefore, as in Japanese Patent Publication No. 7-122500, a disaster prevention mechanism composed of a shaft, a link, a hook, a lever and the like links the vertical position of the combustion wick and the opening and closing of the fuel cap to restrain the opening and closing of the fuel cap. , The one in which the refueling cap can be rotated and the refueling port can be opened only when the combustion wick is in the fire extinguishing position, or the vibration extinguishing system and the refueling cap are connected by a chain cord like in the actual exploitation No. Sho 64-31347. Then, when the refueling cap was operated to open the refueling port, the vibration extinguishing system was activated in tandem with it, and the fire was extinguished.

[0004]

By the way, in this prior art, since the refueling cap and the combustion wick and the vibration extinguishing system are mechanically connected and interlocked with each other, the structure is complicated and causes a cost increase. In addition, the appearance is unsightly, and there is a drawback in that it impairs the aesthetics and is negative in terms of design.

[0005]

The present invention focuses on this point and solves the above-mentioned drawbacks. In particular, the structure is provided in the main body of an oil burning appliance in which the fuel tank and the main body are integrated. The fuel filler, a fuel cap that opens and closes the opening of the fuel filler, a light detector that detects light entering the fuel filler when the fuel filler is opened and outputs a detection signal, and the light detector are If the combustion is in progress when the detection signal is output, the control unit stops the combustion and puts it into a fire extinguishing state.

[0006]

When the refueling cap 7 is operated to open the refueling port 6, the light incident from the opened refueling port 6 into the refueling port 6 is
The light detecting means 12 provided in the fuel filler 6 detects and outputs a detection signal to the controller 17. When the detection signal output from the light detection unit 12 is input, the control unit 17 determines that the fuel filler opening 6 is open, and if combustion is being performed at that time, immediately stops combustion and puts it in a fire extinguishing state.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an oil burning appliance according to the present invention will be described with reference to an embodiment shown in the drawings. Reference numeral 1 is a main body of a petroleum burning appliance for heating which is installed in a classroom of a school or a waiting room at a station, and has a vaporizer burner (not shown) on a lower fuel tank 2. It is equipped with a heat radiating cylinder 4 that internally houses the combustion unit 3.
Heating is performed by releasing combustion hot air from the periphery of the heat radiating cylinder 4, and a guard 5 for preventing burns is provided on the outer periphery of the heat radiating cylinder 4.

Reference numeral 6 denotes a fuel filler port provided in a cylindrical shape on an inclined portion on the front side of the upper portion of the fuel tank 2. The fuel filler port 6 is opened and closed by inserting a fuel filler cap 7 into the opening 8 of the fuel filler port 6. By rotating the refueling cap 7, the engaging portion (not shown) of the refueling cap 7 engages with the locking portion 9 of the opening 8, the refueling port 6 is closed by the refueling cap 7, and the refueling cap 7 is closed. If it rotates in the opposite direction, the engaging portion of the refueling cap 7 and the opening 8
The engagement with the locking portion 9 is released, the refueling cap 7 can be removed from the refueling port 6, and the refueling port 6 can be opened.

Reference numeral 10 denotes a filter, which is provided inside the fuel filling port 6 by engaging with a filter engaging portion 11 inside the fuel filling port 6 so that dust and water in the fuel to be fed do not enter the fuel tank 2. It is something to do.

Reference numeral 12 denotes a light detecting means, which is composed of a photoconductive cell called CdS, a photodiode, etc., and an optical sensor 13 for outputting a detection signal when light is detected.
Fixed part 1 provided on the fuel filler port 6 and having an inner circumference threaded
4, a threaded portion that meshes with the threaded portion of the fixing portion 14 when inserted is formed on the outer circumference, and when the insertion portion 15 to which the optical sensor 13 is fixed is inserted and rotated and fixed, the tip of the optical sensor 13 is inserted. The light receiving section 16 fixes the optical sensor 13 at a position where the light incident on the fuel filling port 6 can be sensed when the fuel filling port 6 is opened.

Reference numeral 17 denotes a control unit, which is an operation switch 19 provided on an operation unit 18 provided on an inclined portion on the upper front surface side of the fuel tank 2.
Combustion pump (not shown), combustion fan (not shown), ignition device (not shown)
The heating operation is performed by controlling the operation of a heater, a carburetor heater (not shown), and the like, and the combustion state, the operating state, and the like are displayed on the display unit 20 including a lamp, a liquid crystal, and the like.

Next, the operation of this embodiment will be described. When refueling an oil burning appliance, the refueling cap 7 is rotated to release the engagement between the engaging portion of the refueling cap 7 and the locking portion 9 of the refueling port 6 to refuel the refueling cap 7. The fuel filling port 6 is opened by removing it from the port 6.

When the refueling port 6 is opened, the light around the petroleum burning appliance enters the refueling port 6 through the opening 8, and the light is detected by the optical sensor 13 of the light detecting means 12. The detection signal is output to the control unit 17. When the control unit 17 inputs the detection signal, the control unit 17 determines that the refueling cap 7 has been removed and the refueling port 6 has been opened, and if the fuel is being burned at that time, the combustion operation is immediately stopped and the fire is extinguished.

As a result, abnormal combustion occurs due to refueling during combustion, or fuel spills from the opened refueling port 6 at some time and the burning flame ignites or is overheated by the heat of the body to ignite. It is possible to prevent spillage and prevent fire accidents due to incorrect fueling.

[0014]

As described above, according to the present invention, in an oil burning appliance in which a fuel tank and a main body are integrated, a fuel filler port provided in the main body and a fuel filler cap for opening and closing the opening of the fuel filler port. And a light detecting means for detecting the light incident on the fuel filler opening when the fuel filler opening is opened and outputting a detection signal, and the combustion is stopped when the light detecting means outputs the detection signal and the combustion is in progress. By providing a control unit that puts the fire into the extinguishing state, it is possible to always extinguish the fire when the refueling cap is removed and the refueling port is opened. It is possible to prevent the occurrence of a fire, the fuel spilling from the open fuel filler at some time, the burning flame igniting it, or the heat of the body overheats it to ignite and cause a fire. is there. In addition, since it is possible to detect that the refueling port has been opened with an extremely simple structure, cost can be reduced compared to the conventional mechanical structure, its inspection and repair can be done easily, and it has a good design and is refreshing. It has a beautiful appearance.

[Brief description of drawings]

FIG. 1 is a perspective view of an oil burning appliance to which an embodiment of the present invention is attached.

FIG. 2 is a sectional view of the main part.

FIG. 3 is the same circuit diagram.

[Explanation of symbols]

 1 Oil Combustion Instrument Main Body 2 Fuel Tank 6 Refueling Port 7 Refueling Cap 8 Opening 12 Light Detection Means 17 Control Section

Claims (1)

[Claims] 1. An oil burning appliance in which a fuel tank and a main body are integrated with each other, a refueling port provided in the main body, a refueling cap for opening and closing an opening of the refueling port, and a refueling port when the refueling port is opened. A light detection unit that detects the light entering the fuel filler port and outputs a detection signal, and a control unit that stops the combustion and puts it into a fire extinguishing state when the light detection unit outputs the detection signal and is burning. An oil burning appliance characterized by having it.