JPS6126757Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an oil combustor that can be used safely and with few failures. When forming an oil combustor using a heating element made of tungsten embedded in a heat-resistant ceramic cylinder, the temperature coefficient of resistance of the tungsten heating element is larger than that of nichrome wire, so the voltage is low. There is a tendency for excessive current to flow at the beginning of application. For this reason, some heating elements with a small heat capacity generate heat instantaneously and the effect on others can be ignored, but with large heat capacity elements used in oil burners, excessive current flows for a long time, so it is common to When used at home, the fuse may melt and become unusable, and the control circuit may generate heat or deteriorate unless materials with a high current rating are used for each component.
It is necessary to control overcurrent at the initial stage of voltage application.

To explain with reference to the drawings, a nozzle pipe 4 with an opposing nozzle 3 attached to a mixing pipe 2 connected to a burner 1 is attached to a vaporizing cylinder 6 through a communication port 5, and an electric heating cylinder 7 is installed inside the vaporizing cylinder 6. A central vaporization chamber 9 and an outer vaporization chamber 10 are provided through which oil flows in through a communication pipe 8 communicating with an oil tank, and the electric heating cylinder 7 has a heating element 12 made of tungsten and a heat-sensitive sensor 13 embedded in a heat-resistant material cylinder 11 made of ceramic. The heating element 12 and the heat-sensitive sensor 13 are connected to a circuit controller 14, and the circuit controller 14 applies half-wave voltage to the tungsten heating element in the initial stage of energization, and prevents the temperature of the heating element 12 from rising. This relates to an oil combustor which is configured so that the thermal sensor 13 senses the voltage and applies a full-wave voltage to the heating element 12. The control circuit section 14 will be explained with reference to the drawings.
15 is a power supply, 16 is a power switch, 17 is a first rectifier, 18 is a triax, 12 is a heating element, 19
is an electric pump for pumping oil from the oil tank to the vaporizer cylinder 6. Further, 20 is a transformer, 21 is a second rectifier, 13 is a heat-sensitive sensor, 22, 23,
24 are first, second, and third integrated circuit sections; 25, 2;
6 and 27 are the first, second and third relay circuit parts, 2
Reference numerals 8, 29, and 30 indicate first, second, and third relay switches that open and close as the first, second, and third relay circuit sections operate. Therefore, when the power switch 16 is closed, the thermal sensor 13 is energized, while the integrated circuit 2
2, the first relay circuit 25 does not operate, and the first
Relay switch 28 is open.

By the way, since the second relay switch 29 is closed by the operation of the second integrated circuit section 23, the triac 18 becomes conductive via the first rectifier 17, so that a half-wave voltage is applied to the heating element 12. When the temperature of the heat-sensitive sensor 13 rises, the first relay circuit section 22 is actuated to close the first relay 28 and the heating element 1 is closed.
The applied voltage according to No. 2 is applied in full wave. The second relay switch 29 maintains the temperature set by the operation of the second integrated circuit 23, and the third relay switch 30 operates the electric pump 19 when the temperature reaches a temperature that allows combustion by the operation of the third integrated circuit 24. It is something that makes you

This invention has the above-mentioned configuration. A nozzle pipe 4 equipped with an opposing nozzle 3 is attached to a mixing pipe 2 connected to a burner 1 through a communication port 5 to a vaporizing cylinder 6. By installing an electric heating tube 7 and providing a central vaporization chamber 9 and an outer vaporization chamber 10 through which oil flows through a communication pipe 8 that communicates with the oil tank, the oil that flows into the vaporization tube 6 is vaporized and ejected from the nozzle 3. However, combustion is carried out smoothly through the burner 1, making it extremely suitable as a heat source for kerosene stoves and the like. In addition, the electric heating cylinder 7 is made of ceramic heat-resistant material cylinder 11.
By embedding the heating element 12 made of tungsten and the heat-sensitive sensor 13, there is no need to provide a special partition for inserting the heating element.
The vaporizing cylinder 6 can be made smaller, and since the oil is directly heated by the heating element, the thermal efficiency is extremely high. Furthermore, the heating element 12 and the heat-sensitive sensor 1 are suitable for handling because the entire combustor can be made smaller.
3 is connected to the circuit control section 14, and the circuit control section 14
In the initial stage of energization, the voltage applied to the tungsten heating element 12 is applied in half waves, and the thermal sensor 13 detects the temperature rise of the heating element 12, and the heating element 12 is turned off.
By forming the voltage to be applied in full wave mode, high voltage is not applied at the initial stage of energization, and no overcurrent flows. The parts can be made small and inexpensive, and can be used for a long time. Moreover, it has a simple structure, is suitable for mass production, and can be provided at low cost, and has many practical effects.

[Brief explanation of the drawing]

Fig. 1 is a plan view, Fig. 2 is an enlarged sectional view of the carburetor cylinder, Fig. 3 is an enlarged sectional view of Fig. 2,
FIG. 4 is an explanatory diagram of the control circuit section 13. 1... Burner, 2... Mixing tube, 3... Nozzle, 4... Nozzle pipe, 5... Communication port, 6... Vaporization tube, 7... Electric heating tube, 8... Communication tube, 9... Center Vaporization chamber, 10... Peripheral vaporization chamber, 11... Heat-resistant material tube, 12... Heating element, 13... Heat-sensitive sensor, 1
4...Circuit control section, 18...Triack, 19
...Electric pump.

Claims (1)

[Scope of utility model registration request] A nozzle pipe 4 with an opposing nozzle 3 attached to a mixing pipe 2 connected to a burner 1 was attached to a vaporizing cylinder 6 through a communication port 5, and an electric heating cylinder 7 was installed inside the vaporizing cylinder 6 to communicate with an oil tank. A central vaporization chamber 9 and an outer vaporization chamber 10 are provided through which oil flows through a communication pipe 8, and the electric heating cylinder 7 is a heat-resistant material cylinder 1 made of ceramic.
1 is formed by embedding a heating element 12 made of tungsten and a heat-sensitive sensor 13, and the heating element 12 and the heat-sensitive sensor 13 are connected to a circuit control part 14, and the circuit control part 14 controls the heating element made of tungsten at the initial stage of energization. The applied voltage is applied in half waves, and the thermal sensor 13 detects the temperature rise of the heating element 12, and the heating element 1
An oil combustor configured to apply a full wave voltage to 2.