JP2017048989A - Combustion device and combustion control device - Google Patents

Abstract

A self-heating combustion apparatus that can be operated over a long period even during a power failure.
A control unit 60 in a combustion apparatus 100 includes a detection unit 61, a power source selection unit 62, an operation control unit 63, and a heater control unit 64. The detector 61 detects a power failure of the commercial power supply 200. When the detection unit 61 detects a power failure of the commercial power supply 200, the power supply selection unit 62 selects the storage battery 80 as a drive power supply for the combustion apparatus 100. The power source selection unit 62 selects the commercial power source 200 in cases other than the above. The operation control unit 63 controls the operation of the combustion apparatus 100 with the power source selected by the power source selection unit 62. The heater control unit 64 controls the heater 50 based on the detection result of the detection unit 61. When the detection unit 61 detects a power failure of the commercial power supply 200, the heater control unit 64 turns off the heater 50 and continues to stop the operation of the heater 50.
[Selection] Figure 2

Description

  The present invention relates to a combustion apparatus connectable to a main power supply and an auxiliary power supply, and a combustion control apparatus in the combustion apparatus.

  2. Description of the Related Art Conventionally, a self-heating combustion device that raises the temperature inside the combustion device itself by combustion of the combustion device itself and promotes vaporization of liquid fuel inside the combustion device (hereinafter, this type of combustion device is referred to as a self-heating type). As a combustion apparatus), the following combustion apparatus has been proposed (see, for example, Patent Document 1). The combustion apparatus is composed of a vaporizing cylinder, a substantially cylindrical combustion disc, and a driving air blowing unit including a motor that rotates the vaporizing cylinder and a blower fan that blows air to the combustion unit, and combustion is performed from the rotating vaporizing cylinder. The liquid fuel sprayed in the room was ignited and burned lively, and the vaporization cylinder was heated by the combustion heat of the live combustion to vaporize the liquid fuel in the vaporization cylinder and gasify and burn it. In addition, a gas combustion apparatus that uses a battery as an auxiliary power source during a power failure of a commercial power source has been proposed (see, for example, Patent Document 2). This gas combustion apparatus has been devised to perform the combustion operation of the gas burner for as long as possible when the remaining amount of the battery is low.

Public Utility Sho 59-186618 JP 09-159162 A

  The combustion apparatus requires a time of several seconds to several tens of seconds from red fire combustion (incomplete combustion) to blue fire combustion (complete combustion) at the first ignition. In particular, when the outside air temperature is low or the fuel is cold, the combustion apparatus is contaminated with soot and the like until it reaches blue fire combustion (complete combustion). If such a combustion device is incorporated in a system such as a hot water heater that is frequently used, this soot may adhere to each part of the system and shorten the life of the system. Further, when the mis-ignition was performed, the temperature of the entire combustion apparatus was still low, so that the sprayed liquid fuel was accumulated in the combustion chamber or the like. For this reason, it is necessary to provide a drain pipe for discharging the liquid fuel.

  In addition, even when an auxiliary power source is provided in a self-heating combustion device of the type like the above combustion device, a device that can be operated for a long time at the time of a power failure like the above gas combustion device is desired.

  Therefore, in view of such circumstances, the present invention provides a self-heating type combustion device that can be efficiently burned completely and can be operated over a long period even during a power failure, and a combustion control device for the combustion device. .

  This invention is for solving the said subject, The combustion apparatus of this invention is a combustion apparatus which can be connected with a main power supply and an auxiliary power supply, and is driven by any one, Comprising: The said main power supply and the said A power supply selection unit that can be connected to the power supply line of the auxiliary power supply and selects one of them, a vaporization cylinder that scatters the supplied fuel to the outside by centrifugal force to form fine particles, and a blower that blows air into the vaporization cylinder And a combustion section that burns the atomized fuel, heats the vaporization cylinder from the outside by the combustion, vaporizes the fuel in the vaporization cylinder, and guides and vaporizes the vaporized fuel to the outside. A heater disposed inside the combustion device, a heater control unit that turns on the heater when the temperature inside the combustion device is equal to or lower than a predetermined temperature, and a detection unit that detects the operating status of the main power source And equipped with The power source selection unit selects the auxiliary power source when the detection unit detects stoppage of operation of the main power source, and the heater controller controls at least the combustion when the auxiliary power source is selected. The heater is turned off when the temperature inside the apparatus is equal to or lower than the predetermined temperature.

  In the combustion apparatus of the present invention, the heater control section turns off the heater while the auxiliary power source is selected.

  Further, in the combustion apparatus of the present invention, the heater controller controls the heater at regular or irregular intervals, for a predetermined period, or instantaneously at least 1 while the auxiliary power source is selected. It is characterized by being turned on once.

  In the combustion apparatus of the present invention, the main power source is a commercial power source, and the auxiliary power source is a storage battery.

  Further, the combustion control device of the present invention burns the fuel supplied to the outside by a centrifugal force to be atomized, a blowing section for blowing air into the vaporizing cylinder, and burning the atomized fuel, A combustion section that heats the vaporization cylinder from the outside by the combustion to vaporize the fuel in the vaporization cylinder, guides the vaporized fuel to the outside and burns it, and a heater, a main power source, And a combustion control device that controls combustion of a combustion device that can be connected to an auxiliary power source and is driven by either one, and can be connected to the power supply line of the main power source and the auxiliary power source, and either one is selected. A power source selection unit; a detection unit that detects an operating state of the main power source; and a heater control unit that turns on the heater when the temperature inside the combustion apparatus is equal to or lower than a predetermined temperature. Part When the auxiliary unit detects the stop of the operation of the main power source, the auxiliary power source is selected, and when the auxiliary power source is selected, the heater control unit is configured such that at least the temperature inside the combustion device is the predetermined temperature. The heater is turned off in the following cases.

  According to the combustion apparatus of the present invention, even if it is a self-heating type combustion apparatus, complete combustion can be efficiently performed, and an excellent effect that it can be operated for a long time even during a power failure can be achieved.

It is a figure which shows the combustion apparatus 100 in embodiment of this invention. It is a functional block diagram of combustion apparatus 100 in an embodiment of the invention. It is a figure showing an example of the time progress of the internal temperature of the combustion apparatus 100, and the state of the heater 50 corresponding to it. It is a figure showing an example of the time passage of the state of the heater 50 in the combustion apparatus 100 of this invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a diagram showing a combustion apparatus 100 according to an embodiment of the present invention. The combustion apparatus 100 includes a vaporizing cylinder 10, a blower unit 20, a fuel supply unit 30, a combustion unit 40, a heater 50, a control unit 60, a main power supply 70, and a storage battery 80.

  The vaporizing cylinder 10 is configured to pulverize the liquid fuel supplied from the fuel supply unit 30 to the outside by centrifugal force. The atomized liquid fuel is jetted into the combustion chamber 45 through the gap 13 provided below the vaporization cylinder 10. As the shape of the vaporizing cylinder 10, for example, a bell shape is assumed as an example. However, the shape is not limited to this, and other shapes may be used.

  The vaporizing cylinder 10 includes a fuel scattering body 11 inside. For example, the shape of the fuel scattering body 11 is assumed to be a truncated cone shape that is tapered downward, but is not limited thereto. The fuel scattering body 11 has the same rotating shaft as the vaporizing cylinder 10. The fuel scattering body 11 is attached to the shaft end portion 12 on the inner upper surface of the vaporizing cylinder 10.

  The air blower 20 blows air into the vaporizing cylinder 10. As shown in FIG. 1, for example, the air blowing unit 20 blows air from the lower side to the upper side inside the vaporizing cylinder 10. The blower unit 20 includes a fan 21, a motor 22, a motor rotating shaft 23, a blower cylinder 24, and an air intake 25.

  The fan 21 is attached to the motor rotation shaft 23. The fan 21 takes in air from the outside through the air intake 25 and rotates by the rotation of the motor 22 to blow air. The blower cylinder 24 guides the blown air from the fan 21 to the fuel scattering body 11. As shown in FIG. 1, for example, the shape of the blower cylinder 24 is assumed to be a tapered cylindrical shape, but is not limited thereto. That is, the blower cylinder 24 may have other shapes as long as the blower of the fan 21 can be guided to the fuel scattering body 11.

  The vaporizing cylinder 10 and the fuel scattering body 11 are attached to the end of the motor rotating shaft 23 at the shaft end 12. The motor rotation shaft 23 becomes the rotation shaft of the vaporizing cylinder 10 and the fuel scattering body 11. When the motor rotating shaft 23 is rotated by the rotation of the motor 22, the vaporizing cylinder 10 and the fuel scattering body 11 are also rotated in the same manner.

  The fuel supply unit 30 includes a fuel pump 31 and a nozzle 32, for example. The fuel pump 31 holds liquid fuel inside. The fuel pump 31 supplies liquid fuel to the fuel scattering body 11 through the nozzle 32.

  The combustion unit 40 ignites and burns the liquid fuel atomized in the vaporizing cylinder 10. Further, the combustion unit 40 heats the vaporizing cylinder 10 by the combustion of the atomized liquid fuel to vaporize the liquid fuel in the vaporizing cylinder 10. The combustion unit 40 ignites and burns the liquid fuel vaporized in the vaporizing cylinder 10. Such a combustion unit 40 includes a combustion cylinder 41, an ignition unit 42, a gas passage 43, and a flame hole 44.

  The combustion cylinder 41 is a cylindrical hollow member surrounding the vaporization cylinder 10. The upper surface of the combustion cylinder 41 is open. A space between the combustion cylinder 41 and the vaporization cylinder 10 is a combustion chamber 45. The finely divided liquid fuel and the vaporized liquid fuel are ejected into the combustion chamber 45.

  The ignition unit 42 ignites the finely divided liquid fuel in the combustion chamber 45 and the vaporized liquid fuel. When the atomized liquid fuel and the vaporized liquid fuel are ignited at the timing when they are ejected into the combustion chamber 45, they are combusted in the combustion chamber 45. For example, an igniter is assumed as the ignition unit 42, but the ignition unit 42 is not limited to this, and may be another ignition device.

  The gas passage 43 is a passage for gas that is liquid fuel vaporized in the vaporizing cylinder 10. The gas passage 43 guides the gas to the flame hole 44. Specifically, the gas passage 43 includes a vaporizing cylinder gas passage 43a and a combustion cylinder gas passage 43b.

  The vaporizing cylinder gas passage 43 a is a gas passage formed in the vaporizing cylinder 10. The vaporizing cylinder gas passage 43 a is a folded passage formed in the vaporizing cylinder 10 by using the blower cylinder 24 as a partition plate. The gas is heated and generated when the liquid fuel descends along the vaporizing cylinder 10, and is guided to a passage formed by the blower cylinder 24 and the inner wall surface of the vaporizing cylinder 10 and proceeds to the combustion cylinder gas passage 43b.

  The combustion cylinder gas passage 43 b is a gas passage formed by a hollow portion in the combustion cylinder 41. The combustion cylinder gas passage 43 b communicates with the vaporization cylinder gas passage 43 a and guides the gas to the flame hole 44 provided in the combustion disk 41 a of the combustion cylinder 41.

  The flame holes 44 are a plurality of holes provided in the combustion disc 41 a constituting the inside of the combustion cylinder 41. The gas guided to the flame hole 44 is ejected from the flame hole 44 to the combustion chamber 45.

  The heater 50 is for heating the inside of the combustion apparatus 100. If the temperature inside the combustion apparatus 100 is raised by the heater 50, the vaporization of the liquid fuel can be promoted. In order to achieve such a thing, it is assumed that the heater 50 is arrange | positioned in various places (for example, vaporization cylinder 10 vicinity, the ventilation part 20 vicinity, the combustion part 40 vicinity, etc.).

  In order to achieve the above, first, it is assumed that the vaporizing cylinder 10 including the fuel scattering body 11 or the temperature inside the vaporizing cylinder 10 is increased. In this case, it is assumed as an example that the heater 50 is arranged as the heater 51, for example, in the vicinity of the inner periphery of the blow tube 24 or in the vicinity of the outer periphery, as shown in FIG. Further, as illustrated in FIG. 1, for example, the heater 50 is assumed to be disposed as the heater 52 inside or outside the combustion cylinder gas passage 43 b near the vaporization cylinder 10. However, the arrangement location of the heater 50 is not limited to the above. As long as the temperature inside the vaporizing cylinder 10 or the vaporizing cylinder 10 can be raised, the heater 50 may be arranged in another place.

  In particular, the heater 52 has an effect that it is easy to evaporate even if the liquid fuel atomized due to an ignition error remains as a liquid fuel and adheres to the side surface of the combustion disc 41a or accumulates on the lower surface of the combustion disc 41a. . Although the above can be performed by the heater 51, the heater 52 can easily achieve the above because there is a distance to the side surface of the combustion plate 41a and the lower surface of the combustion plate 41a.

  In order to achieve the above, second, it is assumed that the temperature of the air blown from the blower unit 20 is increased. In this case, it is assumed as an example that the heater 50 is disposed as the heater 53 in the casing 110 near the fan 21 as shown in FIG. However, the arrangement location of the heater 50 is not limited to the above. That is, as long as the temperature of the air blown from the blower unit 20 can be raised, the heater 50 may be arranged in another place.

  The heater 50 only needs to include at least one heater as described above. In providing the heater as described above, the capacity, location, and number of heaters are design items that should be determined in consideration of, for example, the size and material of the combustion device.

  The control unit 60 controls the operation of the combustion apparatus 100. The combustion apparatus 100 according to the embodiment of the present invention includes both a main power source 70 as a main power source and a storage battery 80 as an auxiliary power source. The control unit 60 can be connected to the power supply line of the main power supply 70 and the power supply line of the storage battery 80. When the power supply line of the main power source 70 and the power supply line of the storage battery 80 are connected to the control unit 60, the control unit 60 is switched from the main power source 70 and the storage battery 80 as the drive power source of the combustion device 100 depending on the situation. Select.

  The main power source 70 is mainly assumed to be a commercial power source, but is not limited to this, and may be another power source. Moreover, although the storage battery 80 is assumed as an auxiliary power supply, it is not restricted to this, Other power supplies may be sufficient. In addition, the storage battery 80 may be either built in the combustion device 100 or external to the combustion device 100, both of which are included in the present invention.

  The combustion apparatus 100 of the present invention is driven by the main power supply 70 when the main power supply 70 (for example, commercial power supply) is normal without a power failure. When the main power supply 70 fails, the control unit 60 switches the drive power supply of the combustion apparatus 100 from the main power supply 70 to the storage battery 80. Then, the control unit 60 stops the operation of the heater 50 while the drive power source of the combustion device 100 is the storage battery 80. This will be described in detail separately with reference to FIG.

  Next, the operation of the above combustion apparatus 100 will be described. When the combustion apparatus 100 starts operation, first, the motor 22 rotates to rotate the vaporizing cylinder 10 and the fuel scattering body 11. Then, the fuel pump 31 supplies the liquid fuel to the fuel scattering body 11 through the nozzle 32.

  Further, the fan 21 is rotated by the rotation of the motor 22 to blow air. This blowing is performed toward the fuel scattering body 11. The liquid fuel adhering to the surface of the rotating fuel scattering body 11 moves upward by the air blowing and the centrifugal force and is scattered around. The scattered liquid fuel adheres to the inner wall of the vaporizing cylinder 10. Since the vaporizing cylinder 10 is rotating, when this operation is repeated, the liquid fuel spreads in a film shape on the inner wall of the vaporizing cylinder 10. When the spread of the liquid fuel reaches the lower end portion 14 of the vaporizing cylinder 10, the liquid fuel is scattered to the combustion chamber 45 through the gap portion 13. Since the width of the gap 13 is very narrow, the liquid fuel scattered from here is in a form of fine particles.

  The atomized liquid fuel is ignited by the ignition unit 42 and burned. The vaporization cylinder 10 is heated by this combustion, and the temperature rises. Thereby, vaporization of the fuel in the vaporization cylinder 10 is promoted.

  On the other hand, the combustion apparatus 100 is provided with a heater 50. If the heater control unit 64 operates the heater 50 when the combustion device 100 starts operating, the temperature inside the combustion device 100 rises at an early stage. For this reason, compared with the combustion apparatus which does not have the heater 50, the speed | rate at which the vaporization of the fuel in the vaporization cylinder 10 of the combustion apparatus 100 is accelerated | stimulated becomes quick. As a result, the combustion apparatus 100 can shorten the time from red fire combustion (incomplete combustion) to blue fire combustion (complete combustion), and can realize efficient combustion.

  The gas, which is the vaporized fuel, is guided to the flame hole 44 through the gas passage 43. Then, the gas is ejected from the flame hole 44 to the combustion chamber 45. The ignition unit 42 ignites the jetted gas and further combustion continues.

  Assume that an abnormality occurs in the main power source 70 and a power failure occurs while the combustion operation as described above is performed. In this case, the control unit 60 switches the driving power source of the combustion device 100 from the main power source 70 to the storage battery 80. Further, the control unit 60 turns off the heater 50 and completely stops the operation of the heater 50 while the drive power source of the combustion apparatus 100 is the storage battery 80. Although the control unit 60 starts the heater 50 at the start timing, it may be the moment when the driving power source of the combustion device 100 is switched to the storage battery 80, or after the driving power source of the combustion device 100 is switched to the storage battery 80, It may be after a predetermined period has elapsed, or may be after another process is performed after the drive power source of the combustion apparatus 100 is switched to the storage battery 80.

  Thereafter, the controller 60 continues to turn off the heater 50 until the power failure of the main power supply 70 is canceled. That is, until the power failure of the main power supply 70 is canceled, the combustion apparatus 100 continues to operate without the heater 50 operating. Thereby, the combustion apparatus 100 can implement | achieve the driving | operation which suppressed power consumption, and can operate | move over a long term even at the time of a power failure.

  Although the control unit 60 starts turning on the heater 50 after the power failure of the main power source 70 is released, it may be the moment when the driving power source of the combustion device 100 is switched to the main power source 70 or the combustion device. It may be after a predetermined period has elapsed after the drive power source 100 has been switched to the main power source 70, or after another process has been performed after the drive power source of the combustion apparatus 100 has been switched to the main power source 70. Also good.

  FIG. 2 is a functional block diagram of the combustion apparatus 100 in the embodiment of the present invention. Here, a commercial power supply 200 is used as an example of the main power supply 70. However, the following description can be applied when another power source is used as the main power source 70. The control unit 60 in the combustion apparatus 100 includes at least a detection unit 61, a power source selection unit 62, an operation control unit 63, and a heater control unit 64.

  The detection unit 61 detects the operating status of the commercial power supply 200 (main power supply). The power source selection unit 62 selects whether the driving power source of the combustion apparatus 100 is the commercial power source 200 (main power source) or the storage battery 80 (auxiliary power source) based on the detection result of the detection unit 61. When the operation state of the commercial power source 200 is a normal state in which the power failure of the commercial power source 200 is not detected by the detection unit 61, the power source selection unit 62 selects the commercial power source 200 as a drive power source for the combustion device 100. Further, as the operating status of the commercial power source 200, when the detection unit 61 detects a power failure of the commercial power source 200, the power source selection unit 62 selects the storage battery 80 as a driving power source for the combustion device 100.

  In addition, although it is the selection timing of the drive power supply of the combustion apparatus 100, what is necessary is just when the detection part 61 detects the stop of operation | movement of the main power supply 70. FIG. That is, the drive power source selection timing of the combustion apparatus 100 may be, for example, the moment when the detection unit 61 detects a power failure of the commercial power source 200 or after the detection unit 61 detects the power failure of the commercial power source 200. It may be after a predetermined period has elapsed, or may be after another process is performed after the detection unit 61 detects a power failure of the commercial power supply 200.

  The operation control unit 63 controls the operation of the combustion apparatus 100 with the power source selected by the power source selection unit 62. Specifically, the operation control unit 63 controls operations of the motor 22, the ignition unit 42, the fuel pump 31, and the like, for example.

  The heater control unit 64 turns on the heater 50 when the temperature inside the combustion apparatus 100 is equal to or lower than a predetermined temperature T1. Moreover, the heater control part 64 turns off the heater 50, when the temperature inside the combustion apparatus 100 is more than predetermined temperature T1. In addition, as the temperature inside the combustion apparatus 100, for example, the temperature of the vaporization cylinder 10, the temperature near the vaporization cylinder 10, the temperature of the blowing unit 20, the temperature near the blowing unit 20, or the temperature of the combustion unit 40. The temperature, the temperature in the vicinity of the combustion unit 40, or the temperature of the casing 110 is assumed as an example. Hereinafter, the operation of the heater control unit 64 is referred to as a heater ON / OFF control. In addition, the predetermined temperature T1 as described above is hereinafter referred to as a threshold temperature T1.

  The heater heater ON / OFF control timing may be any time when the temperature inside the combustion apparatus 100 becomes equal to or lower than the predetermined temperature T1. That is, the heater heater on / off control timing may be, for example, the moment when the temperature inside the combustion apparatus 100 becomes equal to or lower than the predetermined temperature T1, or after the temperature inside the combustion apparatus 100 becomes equal to or lower than the predetermined temperature T1. It may be after a predetermined period has elapsed, or after another process is performed after the temperature inside the combustion apparatus 100 becomes equal to or lower than the predetermined temperature T1.

  The heater control unit 64 changes the control mode of the heater 50 based on the detection result of the detection unit 61. When the power failure of the commercial power source 200 is not detected by the detection unit 61, the heater control unit 64 performs heater heater on / off control according to a predetermined program, for example. When the detection unit 61 detects that the commercial power supply 200 is stopped (power failure) and the storage battery 80 is selected for the power supply selection unit 62, the heater control unit 64 turns off the heater 50 at a predetermined timing. To. The heater control unit 64 turns off the heater 50 while the storage battery 80 is selected.

  While the storage battery 80 is selected, the heater 50 is basically turned off, but in some cases, the heater control unit 64 periodically or irregularly turns the heater 50 on. It may be controlled to be turned on at least once for a predetermined period or momentarily. Turning the heater 50 on for a predetermined period or momentarily means turning on the heater 50 and turning it off after a predetermined period or turning it off instantaneously.

  Explaining the above operation, the combustion apparatus 100 operates using the commercial power source 200 as a power source when the power failure is normal. On the other hand, when a power failure occurs, the combustion apparatus 100 operates using the storage battery 80 as a power source, but the operation of the heater 50 is completely stopped. The stop of the heater 50 is continued until the power failure is released. However, depending on the case, even during the operation stop period of the heater 50, it may be turned on at least once periodically, irregularly, for a predetermined period, or instantaneously.

  The reason for completely stopping the operation of the heater 50 when a power failure occurs is to reduce power consumption. If the combustion device 100 is applied to a hot water heating device, the liquid fuel can be efficiently vaporized and completely burned in a normal time without a power outage, so that the hot water heating device can continue to operate efficiently. On the other hand, at the time of a power failure, the heater 50 with high power consumption is completely stopped. Thereby, even if it is at the time of a power failure, operation | movement of a hot water heating apparatus can be continued over a long time.

  FIG. 3 is a diagram illustrating an example of the time elapse of the internal temperature of the combustion apparatus 100 and the state of the heater 50 corresponding thereto. With reference to FIG. 3, another embodiment of the heater 50 control in the heater controller 64 will be described. It is assumed that the combustion apparatus 100 starts a combustion operation at time A0. At time A0, the temperature inside the combustion apparatus 100 is the temperature T0. Since the temperature T0 is lower than the threshold temperature T1, the heater controller 64 turns on the heater 50 (see the following figure). When the heater 50 is turned on, the temperature inside the combustion apparatus 100 rises with time, along with the combustion operation of the combustion apparatus 100.

  At time A1, the temperature inside the combustion apparatus 100 exceeds the threshold temperature T1. Since the threshold temperature T1 has been exceeded, the heater control unit 64 turns off the heater 50 (see the following figure). If the combustion device 100 stops the combustion operation at time A2, the temperature inside the combustion device 100 gradually decreases.

  It is assumed that the combustion apparatus 100 starts the combustion operation again at time A3. At time A3, the temperature inside the combustion apparatus 100 is the temperature T2. Since the temperature T2 is lower than the threshold temperature T1, the heater controller 64 turns on the heater 50 (see the following figure). At time A4, the temperature inside the combustion apparatus 100 exceeds the threshold temperature T1. Since the threshold temperature T1 has been exceeded, the heater control unit 64 turns off the heater 50 (see the following figure). Thereafter, as described above, the combustion apparatus 100 operates.

  Next, another embodiment of the heater 50 control in the heater control unit 64 will be described with reference to the above. When the power failure does not occur normally, as shown in FIG. 3, the heater control unit 64 performs the time between time A0 and time A1 when the temperature inside the combustion apparatus 100 is equal to or lower than the threshold temperature T1, and between time A3 and time A4. In the meantime, the heater 50 is turned on. In order to continue the stop of the heater 50, the heater 50 is effectively turned off without turning it on at time A0 to time A1 and time A3 to time A4. Therefore, at the time of a power failure, even if the temperature is equal to or lower than the threshold temperature T1, if the heater 50 is controlled to be turned off, the heater 50 can be effectively kept off.

  In the heater 50 control in the heater control unit 64, it is assumed that only the on control of the heater 50 on / off control of the heater control unit 64 is forcibly turned off. This control refers to control for turning off an on-state portion in the figure. Such control is also included in the present invention.

  FIG. 4 is a diagram illustrating an example of a time lapse of the state of the heater 50 in the combustion apparatus 100 of the present invention. Operation of the combustion apparatus 100 is started at time B0. When a power failure occurs at time B <b> 1, the driving power source of the combustion device 100 is switched to the storage battery 80. In this case, the heater 50 is turned off. And if a power failure is cancelled | released at the time B5, the drive power supply of the combustion apparatus 100 will switch to the main power supply 80 (commercial power supply 200).

  In the description using FIG. 2, the heater control unit 64 controls the heater 50 to be turned on at least once periodically or irregularly for a predetermined period or momentarily. I explained that it was supposed. This is represented by time B2, time B3, and time B4 in FIG. In FIG. 4, even during a power failure, the heater 50 is turned on for a predetermined period or momentarily at times B2, B3, and B4. This is performed, for example, in a form that suppresses the power consumption of the storage battery 80 when the ignition state of the combustion device 100 is poor. It is a design matter how to perform the on-state periodically or irregularly for a predetermined period or instantaneously, and is determined in consideration of the outside air temperature in the area. Such control is also included in the scope of the present invention.

  It should be noted that the combustion apparatus of the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Vaporization cylinder 11 Fuel scattering body 12 Shaft end part 13 Gap part 20 Air blower 21 Fan 22 Motor 23 Motor rotating shaft 24 Air blower cylinder 25 Air intake 30 Fuel supply part 31 Fuel pump 32 Nozzle 40 Combustion part 41 Combustion cylinder 41a Combustion board 42 Ignition unit 43 Gas passage 43a Vaporization cylinder gas passage 43b Combustion cylinder gas passage 44 Flame hole 45 Combustion chamber 50, 51, 52, 53 Heating heater 60 Control unit 61 Detection unit 62 Power supply selection unit 63 Operation control unit 64 Heating heater control unit 70 Power supply 80 Storage battery 100 Combustion device 200 Commercial power supply

Claims (5)

A combustion device that can be connected to a main power source and an auxiliary power source and is driven by one of them,
A power supply selection unit that can be connected to the power supply line of the main power supply and the auxiliary power supply and selects one of them,
A vaporizing cylinder that scatters the supplied fuel to the outside by centrifugal force to form fine particles;
An air blowing section for blowing air into the vaporizing cylinder;
A combustion section that burns the finely divided fuel, heats the vaporization cylinder from the outside by the combustion, vaporizes the fuel in the vaporization cylinder, and guides and vaporizes the vaporized fuel to the outside;
A heater disposed inside the combustion device;
A heater controller that turns on the heater when the temperature inside the combustion device is equal to or lower than a predetermined temperature;
A detection unit for detecting an operating status of the main power source;
With
The power source selection unit selects the auxiliary power source when the detection unit detects stoppage of operation of the main power source,
The heater is configured to turn off the heater when at least the temperature inside the combustion device is equal to or lower than the predetermined temperature when the auxiliary power source is selected. The heater control unit turns off the heater while the auxiliary power source is selected.
The combustion apparatus according to claim 1. The heater control unit turns the heater on at least once periodically or irregularly for a predetermined period or momentarily while the auxiliary power source is selected. To
The combustion apparatus according to claim 1. The main power source is a commercial power source, and the auxiliary power source is a storage battery,
The combustion apparatus according to any one of claims 1 to 3. A vaporizing cylinder that scatters the supplied fuel to the outside by centrifugal force to form fine particles;
An air blowing section for blowing air into the vaporizing cylinder;
A combustion section that burns the finely divided fuel, heats the vaporization cylinder from the outside by the combustion, vaporizes the fuel in the vaporization cylinder, and guides and vaporizes the vaporized fuel to the outside;
A heater,
Comprising
A combustion control device that can be connected to a main power source and an auxiliary power source and controls combustion of a combustion device driven by either one of the following:
A power supply selection unit that can be connected to the power supply line of the main power supply and the auxiliary power supply and selects one of them,
A detection unit for detecting an operating status of the main power source;
A heater controller that turns on the heater when the temperature inside the combustion device is equal to or lower than a predetermined temperature;
With
The power source selection unit selects the auxiliary power source when the detection unit detects stoppage of operation of the main power source,
The heater control unit turns off the heater when at least the temperature inside the combustion device is equal to or lower than the predetermined temperature when the auxiliary power source is selected.

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