Combustion machine

Abstract

To provide a burner which can use a power-accumulation type power supply device which is easy in portability.SOLUTION: A voltage application to a heater 12 is suppressed up until a detection temperature of evaporation part temperature detection means 17 reaches a preset prescribed temperature after starting electricity-carrying to the heater 12, and when the detection temperature of the evaporation part temperature detection means 17 reaches the preset prescribed temperature, the suppression of the voltage application to the heater 12 is loosened, and thereby, an abrupt increase of power consumption can be prevented by suppressing an inrush current by applying a voltage up until a temperature of the heater 12 is raised and reaches a prescribed temperature, thus allowing a use of the power-accumulation type power supply device which is small in output power. When the temperature of the evaporation part 13 is raised and reaches the prescribed temperature, a resistance value of the heater 12 is sufficiently raised, the power consumption is not abruptly increased even if loosening the suppression of the voltage application, a temperature rise after reaching the prescribed temperature is accelerated, and a time up to a start of combustion can be shortened.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a combustion device that burns fuel oil. [Background technology]

[0002] Previously, this type of device was known as the Bunsen type, in which kerosene was heated by an electric heater and then sprayed out through a nozzle, and the gas mixed with air taken in by natural aspiration was burned in a combustion tube (see, for example, Patent Document 1). There are also pump spray types in which the vaporizer is heated, air and kerosene are fed into it, and the vaporized mixed gas is burned with a burner on top, and there are also types called pot types in which kerosene is poured into a pot in the combustion tube, heated directly with a heater, and the naturally vaporized kerosene is burned (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-266572 [Patent Document 2] Japanese Patent Application Publication No. 10-332145 Summary of the Invention [Problem to be solved by the invention]

[0004] In this conventional system, if a ceramic heater or PTC heater, which has the characteristic of having low resistance at room temperature, is used as the heater, a large inrush current flows when operation starts, causing power consumption to reach 1000W instantaneously. This is not a problem when using a domestic commercial power source as the main power source, but if an attempt is made to use a portable storage battery power supply as a power source outdoors or during a prolonged power outage due to a disaster, etc., the output power of these portable storage battery power supplies, which include those with an output power of 200W or 500W, will be greater than the rated current when such a 200W or 500W storage battery power supply is used, causing the overcurrent protection circuit within the storage battery power supply to activate and stop the output of the storage battery power supply, preventing the combustion unit from operating. [Means for solving the problem]

[0005] In order to solve the above problem, in claim 1 of the present invention, a combustion unit having a vaporizing unit that vaporizes fuel oil and a low resistance value at room temperature or below are provided. Therefore, the resistance value becomes higher at temperatures above room temperature than at temperatures below room temperature. In a combustion machine including a vaporizer heating means consisting of a heater for heating the vaporizer, a fuel oil supplying means for supplying fuel oil to the vaporizer, a vaporizer temperature detecting means for detecting the temperature of the vaporizer, and a control unit for controlling combustion in the combustion unit, a suppressing means capable of suppressing a voltage applied to the vaporizer heating means is provided, and the control unit suppresses the voltage applied to the vaporizer heating means from when power is started to be supplied to the vaporizer heating means until the temperature detected by the vaporizer temperature detecting means reaches a predetermined temperature, and relaxes the suppression of the voltage applied to the vaporizer heating means when the temperature detected by the vaporizer temperature detecting means reaches the predetermined temperature. Furthermore, the input power source is configured to be either a commercial power source or a power source other than a commercial power source, and the control unit has a configuration for determining whether the input power source is a commercial power source or a power source other than a commercial power source, and when it determines that the input power source is other than a commercial power source, it suppresses the voltage applied to the vaporization unit heating means. It is something.

[0006] In claim 2, the invention relates to a combustion unit having a vaporizing unit that vaporizes fuel oil, and a low resistance value at room temperature or below. Therefore, the resistance value becomes higher at temperatures above room temperature than at temperatures below room temperature.In a combustion machine comprising a vaporizer heating means consisting of a heater for heating the vaporizer, a fuel oil supply means for supplying fuel oil to the vaporizer, a vaporizer temperature detection means for detecting the temperature of the vaporizer, and a control unit for controlling combustion in the combustion unit, the combustion machine is provided with a vaporizer heating means resistance value detection unit for detecting the resistance value of the vaporizer heating means, and a suppression means capable of suppressing a voltage applied to the vaporizer heating means, and the control unit suppresses the voltage applied to the vaporizer heating means from when power is started to be supplied to the vaporizer heating means until the detected resistance value of the vaporizer heating means resistance value detection unit reaches a predetermined resistance value, and relaxes the suppression of the voltage applied to the vaporizer heating means when the detected resistance value of the vaporizer heating means resistance value detection unit reaches the predetermined resistance value. Furthermore, the input power source is configured to be either a commercial power source or a power source other than a commercial power source, and the control unit has a configuration for determining whether the input power source is a commercial power source or a power source other than a commercial power source, and when it determines that the input power source is other than a commercial power source, it suppresses the voltage applied to the vaporization unit heating means. It is something.

[0007] In claim 3, the invention relates to a combustion unit having a vaporizing unit that vaporizes fuel oil, and a low resistance value at room temperature or below. Therefore, the resistance value becomes higher at temperatures above room temperature than at temperatures below room temperature. In a combustion machine including a vaporizer heating means consisting of a heater for heating the vaporizer, a fuel oil supply means for supplying fuel oil to the vaporizer, a vaporizer temperature detection means for detecting the temperature of the vaporizer, and a control unit for controlling combustion in the combustion unit, the combustion machine is provided with a timer unit for measuring time and a suppression means capable of suppressing a voltage applied to the vaporizer heating means, and the control unit starts measuring time with the timer unit when power is supplied to the vaporizer heating means, suppresses the voltage applied to the vaporizer heating means until the time measured by the timer unit reaches a predetermined time, and relaxes the suppression of the voltage applied to the vaporizer heating means when the time measured by the timer unit reaches the predetermined time. Furthermore, the input power source is configured to be either a commercial power source or a power source other than a commercial power source, and the control unit has a configuration for determining whether the input power source is a commercial power source or a power source other than a commercial power source, and when it determines that the input power source is other than a commercial power source, it suppresses the voltage applied to the vaporization unit heating means. It is something.

[0008] Also, in claim 4, The power supply selection switch is provided to set whether the input power supply is a commercial power supply or a power supply other than a commercial power supply, and the control unit determines whether the input power supply is a commercial power supply or a power supply other than a commercial power supply based on the setting of the power supply selection switch. It is something.

[0009] In claim 5, the suppression means suppresses the voltage applied to the vaporization section heating means by controlling the phase of the voltage. [Effects of the Invention]

[0010] According to claim 1 of this invention, the voltage applied to the vaporization section heating means is suppressed from the time when current begins to be applied to the vaporization section heating means until the temperature detected by the vaporization section temperature detection means reaches a predetermined temperature, and once the temperature detected by the vaporization section temperature detection means reaches the predetermined temperature, the suppression of the voltage applied to the vaporization section heating means is relaxed.Therefore, the applied voltage is suppressed until the temperature of the vaporization section heating means rises and reaches the predetermined temperature, suppressing inrush current and preventing sudden increases in power consumption, and a storage-type power supply device with low output power can be used.

[0011] Furthermore, when the temperature of the vaporizer rises and reaches a predetermined temperature, the resistance value of the vaporizer heating means becomes sufficiently high, so that even if the applied voltage is relaxed, power consumption does not increase instantaneously, and the temperature rise after reaching the predetermined temperature can be accelerated, thereby shortening the time until combustion begins. In addition, the input power source is configured to be capable of using either a commercial power source or a power source other than a commercial power source, and the control unit is configured to determine whether the input power source is a commercial power source or a power source other than a commercial power source.When it determines that the input power source is a power source other than a commercial power source, it suppresses the voltage applied to the vaporization unit heating means.Therefore, even if a portable battery-type power supply device with low output power is used, a current greater than the rated current will not flow through the battery-type power supply device, and the overcurrent protection circuit within the battery-type power supply device will be activated, preventing the output of the battery-type power supply device from stopping and the combustion machine from becoming unable to operate.

[0012] Furthermore, according to claim 2, the applied voltage to the vaporization section heating means is suppressed from the time when current begins to flow to the vaporization section heating means until the detected resistance value of the vaporization section heating means resistance value detection unit reaches a predetermined specified resistance value, and once the detected resistance value of the vaporization section heating means resistance value detection unit reaches a predetermined specified resistance value, the suppression of the applied voltage to the vaporization section heating means is relaxed.Therefore, until the temperature of the vaporization section heating means rises and the detected resistance value of the vaporization section heating means resistance value detection unit reaches the predetermined resistance value, the applied voltage is suppressed to suppress inrush current and prevent sudden increases in power consumption, and a storage-type power supply device with low output power can be used.

[0013] Furthermore, when the temperature of the vaporization section rises and the detected resistance value of the vaporization section heating means resistance value detection section reaches a predetermined resistance value, the resistance value of the vaporization section heating means becomes sufficiently high, and even if the suppression of the applied voltage is relaxed, power consumption does not increase instantaneously, and the temperature rise after reaching the predetermined temperature can be accelerated, thereby shortening the time until combustion begins. In addition, the input power source is configured to be capable of using either a commercial power source or a power source other than a commercial power source, and the control unit is configured to determine whether the input power source is a commercial power source or a power source other than a commercial power source.When it determines that the input power source is a power source other than a commercial power source, it suppresses the voltage applied to the vaporization unit heating means.Therefore, even if a portable battery-type power supply device with low output power is used, a current greater than the rated current will not flow through the battery-type power supply device, and the overcurrent protection circuit within the battery-type power supply device will be activated, preventing the output of the battery-type power supply device from stopping and the combustion machine from becoming unable to operate.

[0014] Furthermore, according to claim 3, when current is started to flow to the vaporization section heating means, the timer section starts timing, and the applied voltage to the vaporization section heating means is suppressed until the time measured by the timer section reaches a predetermined time, and once the time measured by the timer section reaches the predetermined time, the suppression of the applied voltage to the vaporization section heating means is relaxed.Therefore, until the temperature of the vaporization section heating means rises and the time measured by the timer section reaches the predetermined time, the applied voltage is suppressed to suppress inrush current and prevent sudden increases in power consumption, and a storage-type power supply device with low output power can be used. In addition, the input power source is configured to be capable of using either a commercial power source or a power source other than a commercial power source, and the control unit is configured to determine whether the input power source is a commercial power source or a power source other than a commercial power source.When it determines that the input power source is a power source other than a commercial power source, it suppresses the voltage applied to the vaporization unit heating means.Therefore, even if a portable battery-type power supply device with low output power is used, a current greater than the rated current will not flow through the battery-type power supply device, and the overcurrent protection circuit within the battery-type power supply device will be activated, preventing the output of the battery-type power supply device from stopping and the combustion machine from becoming unable to operate.

[0015] According to claim 4, the control unit Whether the input power source is commercial or non-commercial can be determined based on the setting of the power source selection switch.

[0016] Furthermore, according to claim 5, the suppression means suppresses the voltage applied to the vaporization section heating means by phase control. For example, by applying a 1 / 4 wave voltage when starting to supply current to the vaporization section heating means, the applied voltage is suppressed until the temperature of the vaporization section heating means rises and the timer section's countdown time reaches a predetermined time, thereby suppressing inrush current and preventing sudden increases in power consumption, and allowing the use of a storage-type power supply device with low output power.

[0017] Furthermore, when the temperature of the vaporization section heating means rises and the timer section's time measurement reaches a predetermined time, the resistance value of the vaporization section heating means becomes sufficiently high, and even if the applied voltage is gradually reduced from 1 / 4 wave to half wave, 3 / 4 wave, and full wave, power consumption does not increase instantaneously, and the temperature rise after reaching the predetermined temperature can be accelerated, thereby shortening the time until combustion begins. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a cross-sectional view of a combustion unit according to an embodiment of the present invention. [Figure 2] FIG. 2 is a schematic diagram of the burner and vaporizer. [Figure 3] FIG. [Figure 4] FIG. [Figure 5]FIG. 6 is a flowchart of an ignition operation control according to another embodiment of the present invention. [Figure 6] FIG. 6 is a flowchart of an ignition operation control according to another embodiment of the present invention. [Figure 7] FIG.

[0019] Next, a first embodiment to which the present invention is applied will be described with reference to the drawings. Reference numeral 1 denotes the main body of the Bunsen-type combustion unit, 2 denotes a burner which is the combustion section that burns a mixture of vaporized liquid fuel and air to generate combustion gas, 3 denotes the combustion chamber main body which covers the flame of burner 2 and discharges the combustion gas upward, 4 denotes a combustion chamber heat shield which is provided to cover the combustion chamber main body 3, 5 denotes a blower which takes in air from air intake 6 into the main body 1 of the unit, 7 denotes a hot air passage formed between the combustion chamber main body 3 and the combustion chamber heat shield 4 which mixes the combustion gas with the air from the blower 5 and directs it as hot air to the front of the main body 1 of the unit, and 8 denotes a hot air outlet for discharging hot air into the room.

[0020] Also, as shown in Figure 2, 9 is an electromagnetic pump, which is a fuel supply means located above an oil pan 10 that stores liquid fuel (kerosene), 11 is a vaporization device consisting of a vaporization section 13 that heats and vaporizes the liquid fuel supplied from the electromagnetic pump 9 using a heater 12, which is a vaporization section heating means, and a nozzle section 16 that opens and closes using an opening and closing rod 15 that is movable by a solenoid 14, and 17 is a vaporization section temperature detection means that detects the temperature of the vaporization section 13. The heater 12 is a heater that has a low resistance value at room temperature or below, such as a PTC heater or a ceramic heater. Furthermore, reference numeral 18 denotes a burner mixing tube, which mixes the vaporized gas from the vaporizer 11 with primary air to form a mixed gas, and reference numeral 19 denotes an ignition device for igniting this mixed gas at the nozzle portion 20 of the burner 2.

[0021] Reference numeral 21 denotes an operation unit, which is provided with an operation switch 22 for instructing the start and stop of operation, and a power source selection switch 23 for setting the input power source to either a commercial power source or an easily portable storage-type power source device. Reference numeral 24 denotes a control unit that controls the operation of this combustion unit and is mainly composed of a microcomputer. Reference numeral 25 denotes a suppression means that can suppress the voltage applied to the heater 12. The suppression means is equipped with a zero-cross detection circuit 25a and a triac 25b and suppresses the voltage applied to the heater 12 by phase control.

[0022] Next, the ignition operation of this combustion unit will be explained with reference to the flowchart of FIG. First, the operation switch 22 is turned on (S1), and the commercial power supply is selected with the power supply selection switch 23 (S2). A full-wave voltage is applied to the heater 12 of the vaporizer 11, and electricity is supplied to the heater 12 (S3). The heat generated by the heater 12 heats the vaporizer section 13.

[0023] At this time, the control unit 24 determines that the input power source is a commercial power source and applies a full-wave voltage to the heater 12. Furthermore, since the heater 12 is a heater that has a low resistance value at room temperature or below, such as a PTC heater or ceramic heater, it becomes hot during combustion and has a high resistance value, with power consumption of around 200 W. However, since the resistance value is low at room temperature or below when power begins to flow, a large inrush current flows and power consumption momentarily reaches 1000 W. However, since the input power source is a commercial power source, power supply to the heater 12 continues without being interrupted.

[0024] Then, when the temperature detected by the vaporization section temperature detection means 17 rises to the vaporization temperature at which the vaporization section 13 can vaporize the liquid fuel (S4), the electromagnetic pump 9 starts and the liquid fuel is sent into the vaporization section 13 (S5), and the liquid fuel is heated and vaporized into a vaporized gas.

[0025] Also, immediately before or after the electromagnetic pump 9 is started, the blower 5 is driven, and current is applied to the solenoid 14, causing the opening / closing lever 15 to open the nozzle section 16 (S6), and the vaporized gas from the vaporization section 13 is sprayed from the nozzle section 16 toward the burner mixing tube 18. Then, primary air is supplied to the burner mixing tube 18 by the ejection force of this vaporized gas to form a mixed gas, which is ignited by the ignition device 19 at the nozzle 20 of the burner 2 (S7) and combusted (S8).

[0026] Furthermore, if a power source other than commercial power is selected with the power source selection switch 23 in (S2), the control unit 24 determines that the input power source is a portable storage type power supply device, and phase controls the voltage applied to the heater 12 using the suppression means 25 (S9), a 1 / 4 wave voltage is applied to the heater 12 of the vaporizer 11, and electricity is passed through (S10), and the vaporizer unit 13 is heated by the heat generated by the heater 12.

[0027] When this current flow starts, the heater 12 has a low resistance value, but the voltage applied to the heater 12 is phase-controlled to 1 / 4 wave by the suppression means 25, so no large inrush current flows and even if the power consumption increases instantaneously, it remains below the rated output power of the storage type power supply device, so the overcurrent protection circuit in the storage type power supply device operates and the output of the storage type power supply device is not stopped, and current continues to flow to the heater 12.

[0028] Then, when the temperature detected by the vaporization unit temperature detection means 17 rises to a predetermined first predetermined temperature (S11), the control unit 24 determines that the temperature will rise due to the passage of current, the resistance value of the heater 12 will increase, and even if the voltage applied to the heater 12 is changed from 1 / 4 wave to 1 / 2 wave, a large inrush current will not flow and the overcurrent protection circuit in the storage type power supply device will not be activated and the output of the storage type power supply device will not be stopped, and changes the voltage applied to the heater 12 from 1 / 4 wave to 1 / 2 wave by the suppression means 25 (S12).

[0029] Then, when the temperature detected by the vaporization unit temperature detection means 17 rises to a second predetermined temperature that is higher than the predetermined first predetermined temperature (S13), the control unit 24 determines that the temperature will rise due to the passage of current, the resistance value of the heater 12 will further increase, and even if the voltage applied to the heater 12 is changed from 1 / 2 wave to 3 / 4 wave, a large inrush current will not flow and the overcurrent protection circuit in the storage type power supply device will not be activated and the output of the storage type power supply device will not be stopped, and changes the voltage applied to the heater 12 from 1 / 2 wave to 3 / 4 wave by the suppression means 25 (S14).

[0030] Then, when the temperature detected by the vaporization section temperature detection means 17 further rises to a third predetermined temperature which is higher than the predetermined second predetermined temperature (S15), the control section 24 determines that the temperature will rise due to the current flow, the resistance value of the heater 12 will further rise, and even if the voltage applied to the heater 12 is changed from 3 / 4 wave to full wave, a large inrush current will not flow and the overcurrent protection circuit in the storage type power supply device will not be activated and the output of the storage type power supply device will not be stopped, and the phase control by the suppression means 25 of the voltage applied to the heater 12 will end (S16) and return to (S3).

[0031] As described above, even if an easily portable storage-type power supply unit is used as an input power source for a combustion machine that uses a heater 12 such as a PTC heater or ceramic heater that has a low resistance value at room temperature or below, when the temperature of the heater 12 is low and the heater 12 has a low resistance value, the suppression means 25 suppresses the voltage applied to the heater 12, so that no large inrush current flows when current begins to flow to the heater 12, and even if the power consumption increases momentarily, it will be below the rated output power of the storage-type power supply unit, and therefore the overcurrent protection circuit in the storage-type power supply unit will operate and the output of the storage-type power supply unit will not be stopped, and power can continue to be supplied to the heater 12.

[0032] Furthermore, the suppression means 25 controls the phase of the voltage applied to the heater 12, changing it from a 1 / 4 wave to a 1 / 2 wave, a 3 / 4 wave, and then a full wave voltage, i.e., gradually decreasing the conduction angle, thereby making it possible to relax the suppression of the applied voltage while preventing a large inrush current from flowing.

[0033] Next, a second embodiment to which the present invention is applied will be described with reference to the drawings. In the second embodiment, a vaporizer heating means resistance value detector 26 is provided to detect the resistance value of the heater 12, and the ignition operation of this combustion unit will be described with reference to the flowchart of FIG.

[0034] Note that the control when the commercial power supply is selected by the power supply selection switch 23 is the same as in the first embodiment, and steps (S1) to (S8) in the flowchart of FIG. 5 are the same as steps (S1) to (S8) in the flowchart of FIG. 4, so their explanation will be omitted.

[0035] Therefore, when a power source other than commercial power is selected with power source selection switch 23 in (S2) of Figure 5, control unit 24 determines that the input power source is a portable storage-type power supply device, and phase-controls the voltage applied to heater 12 using suppression means 25 (S17). A 1 / 4-wave voltage is applied to heater 12 of vaporizer 11, and electricity is passed through (S18), and vaporizer unit 13 is heated by the heat generated by heater 12.

[0036] When this current flow starts, the heater 12 has a low resistance value, but the voltage applied to the heater 12 is phase-controlled to 1 / 4 wave by the suppression means 25, so no large inrush current flows and even if the power consumption increases instantaneously, it remains below the rated output power of the storage type power supply device, so the overcurrent protection circuit in the storage type power supply device operates and the output of the storage type power supply device is not stopped, and current continues to flow to the heater 12.

[0037] Then, when the detected resistance value of the vaporization unit heating means resistance value detection unit 26 rises to a predetermined first set resistance value (S19), the control unit 24 determines that the temperature will rise due to the current flow, the resistance value of the heater 12 will rise, and even if the voltage applied to the heater 12 is changed from 1 / 4 wave to 1 / 2 wave, a large inrush current will not flow and the overcurrent protection circuit in the storage type power supply device will not be activated and the output of the storage type power supply device will not be stopped, and changes the voltage applied to the heater 12 from 1 / 4 wave to 1 / 2 wave by the suppression means 25 (S20).

[0038] Then, when the detected resistance value of the vaporization unit heating means resistance value detection unit 26 rises to a second set resistance value that is higher than a predetermined first set resistance value (S21), the control unit 24 determines that the temperature will rise due to the current flow, the resistance value of the heater 12 will further rise, and even if the voltage applied to the heater 12 is changed from 1 / 2 wave to 3 / 4 wave, a large inrush current will not flow and the overcurrent protection circuit in the storage type power supply device will not be activated and the output of the storage type power supply device will not be stopped, and changes the voltage applied to the heater 12 from 1 / 2 wave to 3 / 4 wave by the suppression means 25 (S22).

[0039] Then, when the detected resistance value of the vaporization section heating means resistance value detection section 26 further rises to a third set resistance value higher than the predetermined second set resistance value (S23), the control section 24 determines that the temperature will rise due to the current flow, the resistance value of the heater 12 will further rise, and even if the voltage applied to the heater 12 is changed from 3 / 4 wave to full wave, no large inrush current will flow and the overcurrent protection circuit in the storage type power supply device will not be activated and the output of the storage type power supply device will not be stopped, and the phase control by the suppression means 25 of the voltage applied to the heater 12 will end (S24) and return to (S3).

[0040] As described above, even if an easily portable storage-type power supply unit is used as an input power source for a combustion machine that uses a heater 12 such as a PTC heater or ceramic heater that has a low resistance value at room temperature or below, when the temperature of the heater 12 is low and the heater 12 has a low resistance value, the suppression means 25 suppresses the voltage applied to the heater 12, so that no large inrush current flows when current begins to flow to the heater 12, and even if the power consumption increases momentarily, it will be below the rated output power of the storage-type power supply unit, and therefore the overcurrent protection circuit in the storage-type power supply unit will operate and the output of the storage-type power supply unit will not be stopped, and power can continue to be supplied to the heater 12.

[0041] Furthermore, the suppression means 25 controls the phase of the voltage applied to the heater 12, changing it from a 1 / 4 wave to a 1 / 2 wave, a 3 / 4 wave, and then a full wave voltage, i.e., gradually decreasing the conduction angle, thereby making it possible to relax the suppression of the applied voltage while preventing a large inrush current from flowing.

[0042] Next, a third embodiment to which the present invention is applied will be described with reference to the drawings. In the third embodiment, a timer unit 27 for measuring time is provided, and the ignition operation of this combustion unit will be described with reference to the flowchart of FIG.

[0043] Note that the control when the commercial power supply is selected by the power supply selection switch 23 is the same as in the first embodiment, and steps (S1) to (S8) in the flowchart of FIG. 6 are the same as steps (S1) to (S8) in the flowchart of FIG. 4, so their explanation will be omitted.

[0044] Therefore, when a power source other than commercial power is selected with power source selection switch 23 in (S2) of Figure 6, control unit 24 determines that the input power source is a portable storage type power supply device, and phase controls the voltage applied to heater 12 using suppression means 25 (S25), a 1 / 4 wave voltage is applied to heater 12 of vaporizer 11 to energize it (S26), and vaporizer unit 13 is heated by the heat generated by heater 12, and timer unit 27 starts timing (S27).

[0045] When this current flow starts, the heater 12 has a low resistance value, but the voltage applied to the heater 12 is phase-controlled to 1 / 4 wave by the suppression means 25, so no large inrush current flows and even if the power consumption increases instantaneously, it remains below the rated output power of the storage type power supply device, so the overcurrent protection circuit in the storage type power supply device operates and the output of the storage type power supply device is not stopped, and current continues to flow to the heater 12.

[0046] Then, when the time measured by the timer unit 27 reaches a predetermined first set time (S28), the control unit 24 determines that the temperature rises due to the current flow, the resistance value of the heater 12 increases, and even if the voltage applied to the heater 12 is changed from 1 / 4 wave to 1 / 2 wave, a large inrush current will not flow and the overcurrent protection circuit in the storage type power supply device will not be activated to stop the output of the storage type power supply device, and changes the voltage applied to the heater 12 from 1 / 4 wave to 1 / 2 wave by the suppression means 25 (S29).

[0047] Then, the control unit 24 resets the time measurement of the timer unit 27 and starts measuring time again (S30). Then, when the time counted by the timer unit 27 reaches a predetermined second set time (S31), it is determined that the resistance value of the heater 12 will further increase as the temperature rises due to the passage of current, and that even if the voltage applied to the heater 12 is changed from 1 / 2 wave to 3 / 4 wave, a large inrush current will not flow and the overcurrent protection circuit in the storage type power supply device will not be activated to stop the output of the storage type power supply device, and the voltage applied to the heater 12 is changed from 1 / 2 wave to 3 / 4 wave by the suppression means 25 (S32).

[0048] Then, the control unit 24 resets the time measurement of the timer unit 27 and starts measuring time again (S33). Then, the control unit 24 determines that the time counted by the timer unit 27 has reached a predetermined third set time (S34), that the temperature has risen due to the current flow, and the resistance value of the heater 12 has further increased, and that even if the voltage applied to the heater 12 is changed from 3 / 4 wave to full wave, a large inrush current will not flow and the overcurrent protection circuit in the storage type power supply device will not be activated to stop the output of the storage type power supply device, and ends the phase control by the suppression means 25 for the voltage applied to the heater 12 (S35), stops and resets the timer unit 27 (S36), and returns to (S3).

[0049] As described above, even if an easily portable storage-type power supply unit is used as an input power source for a combustion machine that uses a heater 12 such as a PTC heater or ceramic heater that has a low resistance value at room temperature or below, when the temperature of the heater 12 is low and the heater 12 has a low resistance value, the suppression means 25 suppresses the voltage applied to the heater 12, so that no large inrush current flows when current begins to flow to the heater 12, and even if the power consumption increases momentarily, it will be below the rated output power of the storage-type power supply unit, and therefore the overcurrent protection circuit in the storage-type power supply unit will operate and the output of the storage-type power supply unit will not be stopped, and power can continue to be supplied to the heater 12.

[0050] Furthermore, the suppression means 25 controls the phase of the voltage applied to the heater 12, changing it from a 1 / 4 wave to a 1 / 2 wave, a 3 / 4 wave, and then a full wave voltage, i.e., gradually decreasing the conduction angle, thereby making it possible to relax the suppression of the applied voltage while preventing a large inrush current from flowing.

[0051] Furthermore, although the present embodiment has been described using a Bunsen-type combustion machine, the present invention is not limited to this, and a pot-type combustion machine as shown in FIG. 7 may also be used. Reference numeral 12 in FIG. 7 denotes a heater that directly heats kerosene poured onto the pot inside the combustion tube and burns the naturally vaporized kerosene, and a ceramic heater or the like is used. When an easily portable storage-type power supply device is used as the input power source, the voltage applied to this heater 12 is suppressed by suppression means 25.

[0052] In this embodiment, the suppression means 25 suppresses the voltage applied to the heater 12 by phase control, but this is not limited to this. For example, a variable resistance device may be connected in series to the heater 12, and the resistance value of this variable resistance device may be increased when current begins to flow to the heater 12, and the resistance value of the variable resistance device may be gradually decreased, thereby easing the suppression of the voltage applied to the heater 12. [Explanation of symbols]

[0053] 2 Burner (combustion part) 9. Electromagnetic pump (fuel supply means) 12 heater (evaporation section heating means) 13 Vaporization section 17 Evaporation section temperature detection means 24 Control Unit 25 Control measures

Claims

1. In a combustion machine comprising a combustion section having a vaporizer section for vaporizing fuel oil, vaporizer section heating means for heating the vaporizer section, the heater having a low resistance value at room temperature or below and a high resistance value at temperatures above room temperature compared to the resistance value at room temperature or below, a fuel oil supply means for supplying fuel oil to the vaporizer section, a vaporizer section temperature detection means for detecting the temperature of the vaporizer section, and a control section for controlling combustion in the combustion section, the combustion machine is provided with a suppression means capable of suppressing the voltage applied to the vaporizer section heating means, and the control section detects the temperature of the vaporizer section heating means after starting to supply electricity to the vaporizer section heating means. a control unit configured to determine whether the input power source is a commercial power source or a power source other than a commercial power source, and when the control unit determines that the input power source is other than a commercial power source, the control unit suppresses the applied voltage to the vaporization unit heating means.

2. a combustion unit including a combustion section having a vaporizer that vaporizes fuel oil; a vaporizer heating means for heating the vaporizer, the vaporizer heating means being a heater that has a low resistance at room temperature or below and a high resistance at temperatures above room temperature compared to the resistance at room temperature or below; a fuel oil supply means for supplying fuel oil to the vaporizer; a vaporizer temperature detection means for detecting the temperature of the vaporizer; and a control unit for controlling combustion in the combustion unit. The combustion unit further includes a vaporizer heating means resistance detection means for detecting the resistance of the vaporizer heating means, and a suppression means for suppressing the voltage applied to the vaporizer heating means, and the control unit is configured to A combustion machine characterized in that the applied voltage to the vaporization section heating means is suppressed until the detected resistance value of the vaporization section heating means resistance value detection unit reaches a predetermined resistance value, and when the detected resistance value of the vaporization section heating means resistance value detection unit reaches the predetermined resistance value, the suppression of the applied voltage to the vaporization section heating means is relaxed, and further, the combustion machine is configured to be able to use either a commercial power source or a power source other than a commercial power source as the input power source, the control unit has a configuration to determine whether the input power source is a commercial power source or a power source other than a commercial power source, and when it determines that the input power source is other than a commercial power source, the applied voltage to the vaporization section heating means is suppressed.

3. In a combustion machine comprising a combustion section having a vaporizer section for vaporizing fuel oil, vaporizer section heating means for heating the vaporizer section, the heater having a low resistance value at room temperature or below and a high resistance value at temperatures above room temperature compared to the resistance value at room temperature or below, a fuel oil supply means for supplying fuel oil to the vaporizer section, a vaporizer section temperature detection means for detecting the temperature of the vaporizer section, and a control section for controlling combustion in the combustion section, the combustion machine is provided with a timer section for measuring time and a suppression means for suppressing the voltage applied to the vaporizer section heating means, and the control section is configured to stop the timer section when power is supplied to the vaporizer section heating means. a control unit that starts a timer and suppresses the voltage applied to the vaporization unit heating means until the timer unit's time count reaches a predetermined time, and when the timer unit's time count reaches the predetermined time, relaxes the suppression of the voltage applied to the vaporization unit heating means; and further, the control unit is configured to be able to use either a commercial power source or a power source other than a commercial power source as the input power source, and the control unit has a configuration that determines whether the input power source is a commercial power source or a power source other than a commercial power source, and when it determines that the input power source is other than a commercial power source, suppresses the voltage applied to the vaporization unit heating means.

4. A combustion machine as described in any one of claims 1 to 3, characterized in that it has a power source selection switch that sets whether the input power source is a commercial power source or a power source other than a commercial power source, and the control unit determines whether the input power source is a commercial power source or a power source other than a commercial power source based on the setting of the power source selection switch.

5. 5. The combustion machine according to claim 4, wherein the suppression means suppresses the voltage applied to the vaporization section heating means by phase control.

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