JPS6126753Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of an automatic control device for vaporizing oil-burning appliances.The conventional operating procedure for this type of vaporizing oil-burning appliance is to first manually close the power switch and then turn the vaporizer on. 5. Turn on the power to the heat generating heater inside.
After ~7 minutes, the notification lamp lights up for the first time when the temperature reaches a point where the fuel can be vaporized and gasified, and while making sure that this notification lamp lights up, turn the opening/closing handle for the first time to open the nozzle body spout, and at the same time. A signal from a heat sensor was given to an electromagnetic pump to pump fuel to a vaporizer. Also, in the event of extinguishing a fire, the user would manually open the power switch and then rotate the opening/closing handle in the opposite direction to completely close the spout of the nozzle body.

Therefore, there are many operating procedures, especially when igniting, after closing the power switch, it is necessary to wait for 5 to 7 minutes, and after that, it is necessary to rotate the opening/closing handle to open the spout, which is extremely troublesome. In addition, when extinguishing a fire, the power switch must be opened and the opening/closing handle must be closed completely, otherwise the vaporized gas will be blown out and emitted, emitting a characteristic foul odor.

This invention focuses on this point and attempts to solve the above-mentioned conventional drawbacks with a simple mechanical structure. Next, an embodiment of this invention shown in the drawings will be described. Reference numeral 1 is a well-known burner having a plurality of flame ports 1' on the upper surface, a mixing tank 2 at the bottom, and a gas intake port 3 in the lateral direction. has been established. The same number of nozzle bodies 4 as the gas intake ports 3 are opposed to the gas intake ports 3. A small-diameter spout 5 is opened at the tip of the nozzle body 4, and a nozzle integrated with a nozzle needle 6 whose diameter is smaller than that of the spout 5 is provided inside the nozzle body 4, which moves back and forth in a straight line to remove carbon attached to the spout 5. The valve 7 is installed inside the valve seat 8 so that its tip is linearly crimped and separated from the valve seat 8. In addition, the middle of the nozzle valve 7 is sealed with a plurality of gas leakage gaskets 9..., and the rear end is provided with a protrusion 10 that protrudes outside the nozzle body 4. 11 is an opening on the side of the nozzle body 4. The gas inlet is connected to a connecting pipe 12 which is branched according to the number of nozzle bodies 4. 13 is a push button provided below the nozzle body 4 and is an integrated guide shaft 1.
4 through a through hole 16 formed in a horizontally convex guide plate 15 to enable movement back and forth in a linear direction; 17
is an interlocking plate that connects the nozzle body 4 and the push button 13, and its upper part is a fulcrum on a shaft 18, and the protrusion 10 of the nozzle valve 7, whose upper part is a fulcrum at a short distance from the shaft 18 as a point of action, is connected to an engaging part 19. and the protrusion 1
The guide shaft 14 of the push button 13 is attached with a shaft 20 to the lower part, which is the starting point at a long distance from the engagement position of the engagement portion 19 and the push button 13.
A reversing spring 22 is placed between the lower end of the side and the spring stopper 21.
It uses the principle of a lever with an intervening lever. Reference numeral 23 denotes a push button case, which also serves as a stopper to prevent the lower end of the interlocking plate 17 from retracting beyond a certain level. Reference numeral 24 denotes a switch that serves as a power switch or a start switch that turns on and off electricity to the fuel supply control circuit A and combustion control circuit B. 13, a spring plate 25 is provided within the guide plate 15 and positioned above the contact point 26 so as to be interlocked with the vaporizer (described later) or the push button 13 near the connecting pipe 12. The protrusion 25' of the spring plate 25 of the switch 24 is connected to an interlocking body 2 having an inverted L shape, which is pivoted by a shaft 27 at a position facing the guide shaft 14 of the push button 13.
30 is the contact portion 29 of the interlocking body 28, which is always kept in a pressed state and faces the contact portion 29 of the interlocking body 28.
The switch 24 is electrically connected to the power supply E of the fuel supply control circuit A in series with a self-holding relay 31 that is normally open. It is connected in series and in parallel with the normally open relay contact 31' of the relay 31. 32 communicates with the nozzle body 4 on one side via the connecting pipe 12, and on the other side with an electromagnetic pump 34 which pumps the fuel in the fuel tank 33 appropriately, and generates vaporized gas at about 250 degrees Celsius with the internal heating heater 35. A well-known vaporizer, and the vaporizer 32 includes the vaporizer 3.
Depending on the temperature set in step 2, the heating heater 35 is turned on.
OFF control and control is provided via a combustion control circuit B, which is equipped with heat sensors 37 and 38 that detect temperature differences between the electromagnetic pump 34 and the ignition means 36 and send start or stop signals. Reference numeral 39 is a flame sensor that detects flame, and when the flame is extinguished or extinguished after combustion, it detects this and opens a normally closed switch 40 connected in series with relay 31 via combustion control circuit B. Reference numeral 41 indicates a drain pipe removal pipe, and 42 indicates a flame sensor. Anti-earthquake switch.

This invention is constructed as described above. Next, the operation of the embodiment of this invention will be explained. When the push button 13 is pulled to a certain position rearward in the linear direction from the extinguished state, that is, the state shown in FIG. When the guide shaft 14 moves past the dead center, it is automatically pressed by the reversing spring 22, and at the same time the guide shaft 14 separates from the interlocking body 28. This causes the spring 30 to move toward the interlocking body 2.
8 and presses the contact 26 via the spring plate 25. As a result, the switch 24 is closed and the relay 31 is also energized to hold the relay contact 31' self-holding, and the fuel supply control circuit A and When the combustion control circuit B is energized for the first time and the reversing spring 22 passes the dead center and reaches the limit of the movement range of the push button 13, the contact portion 29 of the interlocking body 28 passes over the protrusion 25' of the spring plate 25. However, at this time, the relay 31 self-holds the relay contact 31', so the fuel supply control circuit A and the combustion control circuit B continue to be energized.At the same time, the nozzle valve 7 is also moved backward in the linear direction, and the valve seat 8 The nozzle needle 6 is also separated from the spout 5 and maintained in an open state.
The internal heater 35 heats up to a predetermined temperature, which is detected by the heat sensor 37 and the ignition means 36 starts spark discharge.At the same time, the electromagnetic pump 34 sucks fuel from the fuel tank 33 and pumps it into the vaporizer 32. This pressure-fed fuel is heated by the heating heater 35 in the vaporizer 32, becomes vaporized gas, enters the nozzle body 4 via the connecting pipe 12, and is ejected from the spout 5 to the burner 1. The ignition means 36 which is discharging sparks ignites and starts combustion, and the heat sensor 38 repeatedly turns on and off the vaporizer 32 to maintain the set temperature, resulting in the state shown in FIG.

To extinguish the fire from this combustion state, press the push button 13 to a certain position forward in the linear direction from the state shown in Fig. 2, the interlocking plate 17 will also move, and when it passes the dead center, it will be automatically pressed by the reversing spring 22. At the same time, the guide shaft 14 presses the interlocking body 28 against the spring 30, thereby causing the contact portion 29 of the interlocking body 28 to rotate in the opposite direction, causing the protrusion 2 of the spring plate 25 to rotate.
5' and presses the contact 26 through the spring plate 25, which closes the switch 24 again and connects the switch 24 and the relay contact 31'.
However, when the reversing spring 22 crosses the dead center and reaches the limit of the movement range of the push button 13, the contact portion 29 of the interlocking body 28 contacts the protrusion 2 of the spring plate 25.
At this time, the fuel supply control circuit A and the combustion control circuit B are still energized. At the same time, the nozzle valve 7 is also moved forward in a straight line and is placed on the valve seat 8. The nozzle needle 6 is instantly crimped and the nozzle needle 6 also passes through the spout 5, so it is closed. At the same time, the combustion is extinguished instantaneously, so the flame sensor 39 detects this and the combustion control circuit B
relay 31 to open the normally closed switch 40.
The energization is stopped, the relay contact 31' is opened, and the energization is instantly stopped to the fuel supply control circuit A and the combustion control circuit B, and all functions are stopped.Of course, the normally closed switch 40 is closed again after a certain period of time.

Also, when this fire is extinguished, the nozzle needle 6 closes the spout 5.
Of course, the carbon adhering to the connecting pipe 12 and the vaporizer 32 are also removed at the same time, and the vaporized gas in the connecting pipe 12 and the vaporizer 32 returns to liquefaction as the residual heat of the vaporizer 32 decreases, and is released from the drain pipe 41 of the electromagnetic pump 34. The fuel is returned to the fuel tank 33.

As described above, according to this invention, in a device equipped with a nozzle body 4 that vaporizes fuel in the vaporizer 32 and supplies vaporized gas to the burner 1, the nozzle body 4 has a spout 5 at the tip that can be opened and closed. Nozzle valve 7
The nozzle valve 7 is connected to a push button 13 for pressing and releasing pressure in a linear direction.
An interlocking body 28, which rotates in conjunction with the release of the push button 13, is placed opposite to the switch 24, which rotates to control the energization of the fuel supply control circuit A and the combustion control circuit B. The switch 24 is once closed and then opened again, and the fuel supply control circuit A is energized when the switch 24 is closed.
It is self-maintained via a relay contact 31' connected in parallel with the switch 24, and the power supply E and fuel supply control circuit A
Since this device is characterized by being equipped with a relay 31 that closes the circuit with the ignition, combustion and extinguishing can be automatically controlled in a vaporizing oil combustion appliance with a single touch operation by pressing and releasing a single push button. It is very convenient to operate, and since it is a push button, there is no need to worry about having to open the handle.Moreover, the electrical and mechanical actions are performed simultaneously, ensuring that the nozzle nozzle is closed when extinguishing a fire, and vaporization is achieved. No gas is released and no odor is emitted, and the clever combination of a self-holding relay and one switch means that even if a power outage occurs during combustion and the power is turned back on, raw fuel will remain intact. It is safe with no risk of ejection from the burner, and since the switch is once closed by the interlocking body and then opened again after forming a self-holding circuit of the relay, there are fewer breakdowns and a longer lifespan compared to a switch that is constantly pressed. It is also long, requires very few electrical parts, has few failure points, and can be provided at low cost.

[Brief description of the drawings]

Fig. 1 is a partially omitted perspective view of an embodiment of this invention, Fig. 2 is an enlarged sectional view of the same main part during combustion, and Fig. 3
The figure is an enlarged sectional view of the same when the fire is extinguished, and Figure 4 is the electric circuit diagram of the same. 1... Burner, 4... Nozzle body, 5... Spout, 7... Nozzle valve, 13... Push button, 24...
Switch, 28... Interlocking body, 31... Relay, 3
1'... Relay contact, 32... Vaporizer, A...
Fuel supply control circuit, B... Combustion control circuit, E...
power supply.

Claims (1)

[Scope of utility model registration request] In a device equipped with a nozzle body 4 that vaporizes fuel oil in a vaporizer 32 and supplies vaporized gas to the burner 1, the nozzle body 4 is equipped with a nozzle valve 7 that opens and closes a spout 5 at the tip, and Valve 7
is connected to the push button 13 that is pressed and released in a linear direction, and the push button 13 is opposed to an interlocking body 28 that rotates in conjunction with the release of the push button 13, and the interlocking body 28 rotates to release the fuel. The switch 24, which controls the energization of the supply control circuit A and the combustion control circuit B, is once closed and then opened again.The fuel supply control circuit A is energized when the switch 24 is closed, and the switch 24 and the combustion control circuit B are energized. An automatic control device for a vaporizing oil combustion appliance, characterized by comprising a relay 31 that is self-held via parallel-connected relay contacts 31' and closes a circuit between a power source E and a fuel supply control circuit A.