JP2011226689A - Vaporization type warm-air heating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display the running cost of a vaporization type warm-air heating apparatus during heating operation.SOLUTION: The vaporization type warm-air heating apparatus includes: a vaporizer 1 which includes an electric heater 2 to vaporize liquid fuel; a fuel pump 6 for supplying the liquid fuel to the vaporizer 1; a burner part 8 for burning the vaporized fuel from the vaporizer 1; a fuel consumption calculating means 19 for calculating an instantaneous value of a fuel consumption (fuel consumption) per unit time by using the operating frequency of the fuel pump 6; a current sensor 15 for detecting the amount of the current to be sent to apparatuses; a power consumption calculating means 20 for calculating the instantaneous value of a power consumption (power consumption) per unit time by using the amount of the current detected by the current sensor 15 and converting the average power consumption per one cycle of the electric heater 2 from the energized time to the non-energized time or from the non-energized time to the energized time into the power consumption per unit time; a heating expense calculating means 21 for calculating the instantaneous value of heating expenses by multiplying the fuel consumption by a unit price of the liquid fuel and multiplying the power consumption by the unit price of power; and a display part 13 for displaying the instantaneous value of the calculated heating expenses.

Description

  The present invention relates to a vaporizing hot air heating device that vaporizes and burns liquid fuel.

  Conventionally, in this type of vaporization type hot air heating apparatus, a burner that burns liquid fuel, a vaporizer that vaporizes the liquid fuel supplied to the burner, and electric heat that heats the vaporizer to a temperature at which the liquid fuel can vaporize. A heater, a fuel pump that supplies liquid fuel to the vaporizer, a combustion fan that supplies combustion air to the burner, and a convection fan that blows indoor air using warm air, and combustion heat is generated on the burner side of the vaporizer There has been a heat back member that recovers heat in a vaporizer, and suppresses energization to the electric heater after heating is stabilized.

JP 2001-349536 A

  In such a conventional system, in order to display the running cost of heating operation, the fuel consumption and power consumption per unit time are monitored, and each unit price is multiplied to obtain an instantaneous value of the running cost per unit time. In this case, the instantaneous value of the power consumption varies greatly depending on whether or not the electric heater is energized.

  For example, if the total power consumption of the fuel pump, combustion fan, and convection fan is about 10 W to 30 W, and the power consumption of the electric heater is about 500 W to 800 W, the temperature of the carburetor decreases during combustion and the electric heater is energized. As a result, the power consumption rises to a dozen times to a few dozen times, so whether the electric heater is energized or not energized at the timing when the user visually recognizes the instantaneous value as an index of running cost. As a result, the value fluctuates greatly, and the instantaneous value is not an indicator of the running cost of the user.

  In order to solve the above problems, the present invention provides a vaporizer that includes an electric heater and vaporizes liquid fuel, a fuel pump that supplies liquid fuel to the vaporizer, and a burner unit that burns vaporized fuel from the vaporizer. A fuel consumption calculating means for calculating an instantaneous value of fuel consumption (fuel consumption) per unit time from an operating frequency of the fuel pump, a current sensor for detecting a current value flowing through the device, and a current value detected by the current sensor. Electricity cost calculating means for calculating an instantaneous value of power consumption per unit time (electricity cost) by converting the average power consumption per cycle of energization / non-energization or non-energization / energization of the electric heater; Heating cost calculation means for calculating the instantaneous value of the heating cost by multiplying the fuel consumption and the electricity cost by the unit price of liquid fuel and the unit price of electric power, and a display unit for displaying the instantaneous value of the heating cost are provided.

  Further, the power consumption calculation means calculates the power consumption by using the current value detected by the current sensor as it is when the time from the stop of energization of the electric heater is equal to or more than one cycle of the previous non-energization / energization. .

  Further, the power consumption calculation means calculates the power consumption by using the current value detected by the current sensor as it is when the electric heater is energized for the first time at the start of heating.

  Further, the power consumption calculation means calculates the instantaneous value of the power consumption by converting the average power consumption with the passage of time from the start of the first power supply into a unit time when the electric heater is deenergized for the first time after the start of heating. .

  Further, the power consumption calculation means substitutes the power consumption at the time of initial energization of the electric heater when the electric heater is deenergized for the first time after the start of heating.

  As described above, according to the present invention, power consumption per unit time, which is an indicator of running cost, even if there is a change in energization / non-energization state of the electric heater, which consumes much more power than other electrical components. Since the instantaneous value based on the power consumption averaged over the previous energization / non-energization or non-energization / energization cycle is displayed, the instantaneous value due to energization / non-energization of the electric heater is greatly increased. Fluctuation is suppressed, and an instantaneous value sufficient for the user to use as an index of running cost can be displayed.

The schematic block diagram of the vaporization type hot air heating apparatus of one Embodiment of this invention Block diagram of the same embodiment Time chart of the same embodiment

Next, an embodiment of the vaporization type hot air heating apparatus of the present invention will be described with reference to the drawings.
1 is a bottomed cylindrical vaporizer for vaporizing liquid fuel such as kerosene, and 2 is an electric heater for heating the vaporizer 1 to a temperature at which the fuel can be vaporized. Embedded in a substantially annular shape. Reference numeral 3 denotes a combustion fan that supplies combustion air through a combustion air intake 4 that is open to the side of the carburetor 1, and reference numeral 5 denotes a fuel provided toward the inside of the carburetor 1 through the combustion air intake 4. An injection nozzle 6 is a fuel pump that pumps fuel from the fuel tank 7 to the fuel injection nozzle 5.

  Reference numeral 8 denotes an open cylinder-shaped burner portion placed and fixed on the upper portion of the vaporizer 1, and a large number of flame holes 9 are opened in the side wall of the burner portion 8. Reference numeral 10 denotes a ring-shaped heat recovery unit which is provided upright on the outer periphery of the burner unit 8 and recovers the combustion heat by conducting it to the vaporizer 1 to reduce the input of the electric heater 2 during combustion. Is. Reference numeral 11 denotes a vaporization temperature sensor which is attached to the outer periphery of the vaporizer 1 and detects the temperature of the vaporizer 1.

  Reference numeral 12 denotes an operation unit for instructing an operation instruction and a heating set temperature of the vaporization type hot air heating apparatus, 13 a display unit for displaying the heating set temperature and an instantaneous value of the heating cost, and other information, and 14 for heating. A room temperature sensor for detecting the temperature in the room, 15 is a current sensor for measuring the current value flowing through the vaporizing hot air heater, 16 is an ignition means for igniting the spark by burning the burner section 8, and 17 is the hot air in the heating room. A convection fan 18 for convection is a control means for controlling the vaporization type hot air heating apparatus, and includes a microcomputer having a calculation, storage, and timer function.

  The control means 18 stores the unit price of fuel and the unit price of electric power, and calculates the instantaneous value of the fuel consumption (fuel consumption) per unit time from the operating frequency of the fuel pump 6; Electricity cost calculation means 20 for calculating an instantaneous value of power consumption (electricity cost) per unit time from the current value detected by the current sensor 15, and the instantaneous value of the heating cost by multiplying the fuel consumption and electricity cost by the unit price of fuel and the unit price of electric power There is provided a heating cost calculating means 21 for calculating. The unit price of fuel and the unit price of electric power stored in the control means 18 can be changed and input by a predetermined operation of the operation unit 12.

  Next, the operation of the vaporization type hot air heating apparatus will be described. Upon receiving an operation instruction from the operation unit 12, the control means 18 monitors the temperature detected by the vaporization temperature sensor 11 and the fuel vaporizes the vaporizer 1. When the electric heater 2 is energized and heated to a possible temperature and the temperature of the vaporizer 1 rises to a temperature at which the fuel can be vaporized, the fuel pump 6 drives the combustion fan 3 and the ignition means 16 to start combustion, A convection fan 17 that convects warm air into the heating room is driven to perform heating operation.

  At this time, simultaneously with the start of combustion, the control means 18 starts time counting by a first timer that counts one cycle of energization / non-energization of the electric heater 2, and the fuel consumption calculation means 19 stores fuel stored in advance. The fuel consumption is calculated from the fuel consumption (fuel consumption) per unit time corresponding to the operating frequency of the pump 6, and the power consumption calculating means 20 determines the current value detected by the current sensor 15, the voltage value of the commercial power source stored in advance and the predetermined value. The power consumption (electricity cost) per unit time is calculated from the unit time. The heating cost calculating means 21 calculates the instantaneous value of the heating cost by multiplying the unit price of fuel and the unit price of power stored in advance with the fuel consumption and the power cost, and the control means 18 displays the instantaneous value of the heating cost on the display unit 13. Is displayed. The power consumption calculating means 20 integrates and stores the power consumption during operation of the first timer.

  Then, the required thermal power is calculated according to the temperature difference between the heating set temperature set by the operation unit 12 and the room temperature detected by the room temperature sensor 14, and the fuel pump 6 is controlled at the operating frequency corresponding to the required thermal power, and the vaporization temperature sensor When the temperature of the carburetor 1 detected at 11 is equal to or higher than a predetermined upper limit temperature suitable for fuel vaporization, the electric heater 2 is deenergized and at the same time, the control means 18 is a cycle of de-energization / energization of the electric heater 2. The time calculation is started by the second timer that counts the time of the power consumption, and the power consumption calculating means 20 sequentially calculates the average from the elapsed time (T1 + T2) of the first timer and the integrated value (A + B) of the power consumption during the operation of the first timer. The power consumption ((A + B) / (T1 + T2)) is calculated, and this is converted into the power consumption per unit time (electricity cost) to calculate the instantaneous value of the heating cost. The power consumption calculating means 20 integrates and stores the power consumption during operation of the second timer.

  Here, when the electric heater 2 is de-energized for the first time, the electric expense calculation means 20 outputs the electric expense based on the current value detected by the current sensor 15 when the electric heater 2 is energized. An instantaneous value of the heating cost may be calculated.

  When the time from the first energization stop of the electric heater 2 exceeds the time T1 from ignition until the electric heater 2 is de-energized without energizing the electric heater 2, the electric cost calculation means 20 actually detects it with the current sensor 15. The power consumption calculated from the current value is switched so as to output, and the instantaneous value of the heating cost is suppressed from becoming excessive.

  Next, when the temperature of the vaporizer 1 detected by the vaporization temperature sensor 11 falls below a predetermined lower limit temperature suitable for fuel vaporization, the electric heater 2 is energized again and at the same time, the time count of the first timer and the power consumption. The accumulated value of the amount is reset, and the cycle time is determined from the time (T1 + T2) of the cycle of energization / non-energization of the electric heater 2 and the accumulated value of the power consumption during the first timer operation (A + B)). The average power consumption ((A + B) / (T1 + T2)) is calculated and converted into the power consumption per unit time (electricity cost) to calculate the instantaneous value of the heating cost.

  When the temperature of the vaporizer 1 detected by the vaporization temperature sensor 11 becomes equal to or higher than a predetermined upper limit temperature, the electric heater 2 is stopped again, and at the same time the time count of the second timer and the integrated value of power consumption are reset. At the same time, the average power consumption per cycle ((B + C) is calculated from the time (T2 + T3) of the non-energization / energization period of the electric heater 2 and the integrated value (B + C) of the power consumption during the second timer operation. ) / (T2 + T3)) is calculated and converted into power consumption per unit time (electricity cost) to calculate an instantaneous value of the heating cost.

  When the temperature of the main body of the vaporization type hot air heater is raised and stabilized as a whole, the combustion heat can be stably recovered in the vaporizer 1, so that the frequency of energization of the electric heater 2 is reduced. It will be. In that case, when the time after deenergizing the electric heater 2 becomes longer than the period (T2 + T3) of the previous period of deenergization / energization immediately before being counted by the second timer without energizing the electric heater 2, The power consumption calculation means 20 switches from the power consumption output using the average power consumption per cycle until then to output the power consumption calculated from the current value actually detected by the current sensor 15, The instantaneous value of the heating cost is prevented from becoming excessive.

  In this way, even if there is a change in the energization / non-energization state of the electric heater, the power consumption (electricity cost) per unit time, which is an indicator of running cost, is much higher than that of other electrical components. Instantaneous values based on the electricity consumption averaged over the previous energization / non-energization or non-energization / energization cycle are displayed, so a form based on the actual fuel consumption and power consumption of the vaporizing hot air heater In this way, the fluctuation of the instantaneous value due to the energization / non-energization of the electric heater is suppressed, and the instantaneous value that the user can use as an indicator of running cost can be displayed.

  The present invention has been described by taking a premixed combustion type burner as an example. However, the present invention is not limited to this, and can also be applied to a Bunsen combustion type burner. Further, the present invention can be applied to an open-type hot air heating apparatus that blows combustion gas directly into a room or a semi-enclosed or sealed hot-air heating apparatus that exhausts the combustion gas to the outside by exchanging heat with indoor air. is there.

DESCRIPTION OF SYMBOLS 1 Vaporizer 2 Electric heater 6 Fuel pump 8 Burner part 11 Vaporization temperature sensor 13 Display part 15 Current sensor 19 Fuel consumption calculation means 20 Electricity cost calculation means 21 Heating cost calculation means

Claims (5)

  A vaporizer that includes an electric heater and vaporizes liquid fuel, a fuel pump that supplies liquid fuel to the vaporizer, a burner unit that combusts the vaporized fuel from the vaporizer, and a unit time from the operating frequency of the fuel pump Fuel consumption calculating means for calculating an instantaneous value of fuel consumption (fuel consumption) per vehicle, a current sensor for detecting a current value flowing through the device, and energization / non-energization or non-energization of the electric heater from the current value detected by the current sensor Power consumption calculating means for calculating an instantaneous value of power consumption (electricity cost) per unit time by converting average power consumption per cycle of energization / energization, and unit price of liquid fuel in the fuel consumption and power consumption A vaporization type hot air heating apparatus comprising heating cost calculation means for calculating an instantaneous value of the heating cost by multiplying a unit price of electric power, and a display unit for displaying the instantaneous value of the heating cost.   The power consumption calculation means calculates the power consumption by using the current value detected by the current sensor as it is when the time from the energization stop of the electric heater is equal to or more than one cycle of the previous non-energization / energization. The vaporization type hot air heating apparatus according to claim 1, wherein   The vaporization formula according to claim 1 or 2, wherein the power consumption calculation means calculates the power consumption by using the current value detected by the current sensor as it is when the electric heater is energized for the first time at the start of heating. Hot air heating device.   The power consumption calculation means calculates the instantaneous value of power consumption by converting the average power consumption with the passage of time from ignition to unit time when the electric heater is deenergized for the first time after the start of heating. The vaporization type hot air heating apparatus according to claim 3.   The vaporization type hot air heating apparatus according to claim 3, wherein the electric cost calculation means substitutes the electric cost when the electric heater is energized for the first time when the electric heater is de-energized for the first time after the start of heating. .

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