JP2005140468A - Controller for oil combustor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device allowing easy confirmation of a use amount of kerosene of a cartridge tank and a fixed tank by use of an existing component of an oil combustor. <P>SOLUTION: By performing specific operation to an existing switch of an operation part 12, an integrated value of an amount of kerosene supplied to a combustion part 13 by an oil pump 14 is stored, and the integrated value is displayed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a control device for an oil combustor, and more particularly to a control device that informs a user of consumption of kerosene.

  Conventionally, this type of oil combustor control device is provided with a weight detection means for detecting the weight of the cartridge tank, and displays the amount of kerosene in the cartridge tank by a bar display or the like to inform the user of the timing of refueling Also, the oil level detection means attached to the fixed tank detects when the cartridge tank is empty and the amount of kerosene in the fixed tank falls below a certain level, and informs the user of the timing of refueling with a refueling lamp. Many methods are used.

  Further, there is also known a device in which the oil level detecting means detects that the amount of kerosene in the fixed tank has become a certain amount or less and then displays the subsequent combustible time (for example, Patent Document 1). reference).

FIG. 3 is a block diagram of the conventional oil combustor control device described in Patent Document 1, and after detecting that the amount of kerosene in the fixed tank has become a certain amount or less by the oil level detection means, It is an example of the control apparatus which displays the subsequent combustible time. The oil level detecting means 7 detects when the remaining amount of kerosene in the oil tank 6 has become a predetermined amount or less, the combustible time calculating means 8 calculates the time during which combustion can be continued with the remaining kerosene, and the combustible time Tell the timekeeping means 9. The combustible time measuring means 9 measures the combustible time in real time and calculates the remaining kerosene amount. By displaying the time counted by the combustible time counting means 9 on the display unit 10, the user can confirm the time during which combustion can be continued with the remaining kerosene.
JP 2000-2137744 A

  However, in the conventional configuration, there is a variation in the amount of remaining oil when the oil level detection unit is activated due to an installation error of the oil level detection unit and a variation in the shape of the fixed tank. Furthermore, since the amount of kerosene consumption per unit time changes as the combustion amount changes, the minimum residual oil amount that takes into account variations is used to prevent the kerosene from running out within the indicated combustible time. The combustion continuation time must be calculated based on the maximum kerosene consumption. For this reason, the display is shorter than the actual combustible time.

  In addition, the oil level detection means attached to the fixed tank detects when the amount of kerosene in the fixed tank has fallen below a certain level and informs the user of the timing of refueling with a refueling lamp, etc. The remaining amount of kerosene in the cartridge tank before the lamp is turned on cannot be grasped, and it is not known how long combustion can be continued after the fueling lamp is turned on.

  Furthermore, the conventional method for displaying the amount of kerosene in the cartridge tank has a problem that a weight detection means is required and the number of parts increases, so that an inexpensive control device cannot be provided.

  The present invention solves the above-described conventional problems, and provides an inexpensive oil combustor control device that allows a user to grasp the amount of kerosene in a cartridge tank and a fixed tank using existing parts of the oil combustor. It is for the purpose.

  In order to solve the above-described conventional problems, the control device for an oil combustor of the present invention stores an integrated value of the amount of kerosene supplied to the combustion unit by the oil pump by a specific operation of the existing switch provided in the operation unit. In addition, the integrated value can be displayed.

  As a result, the consumption of kerosene per unit time for each combustion amount can be grasped in advance, so it is stored as data in the microcomputer, and the kerosene per unit time corresponding to the combustion amount at that time is added to the integrated value for each unit time. By adding these consumption amounts, an integrated value of the consumption amount of kerosene can be obtained, thereby improving usability.

  The control device for the oil combustor according to the present invention enables the user to grasp the amount of kerosene in the cartridge tank and the fixed tank by enabling the accumulated value of the consumption of kerosene to be displayed. Since the above-mentioned function is realized by using existing parts in the combustor, an inexpensive oil combustor control device can be provided.

  The first invention controls a cartridge tank for supplying kerosene, a fixed tank for receiving kerosene from the cartridge tank, an oil pump for supplying kerosene from the fixed tank to a combustion section, and a flow rate and combustion air amount of the oil pump. A control unit and an operation unit equipped with a switch operated by a user and a display element for displaying room temperature and the like, and the control unit stores an integrated value of the amount of kerosene supplied to the combustion unit by an oil pump The accumulated value can be displayed, and the increment of the accumulated value increased by using the oil combustor from the accumulated value when the user refueled the cartridge tank. Is the consumption of kerosene, the user can grasp the remaining amount of kerosene in the cartridge tank by subtracting this consumption from the capacity of the cartridge tank.

  The second invention is characterized in that when a specific switch of the operation unit is operated, the stored integrated value is initialized, and when the user refuels the cartridge tank, the operation unit is specified. If the accumulated value of kerosene consumption is initialized by operating the switch, the accumulated value display will indicate the amount of kerosene that has been reduced from the cartridge tank. It can be easily grasped.

  The third invention is characterized in that, when a specific switch of the operation unit is operated, an integrated value is normally displayed for a predetermined time on a display element displaying temperature or time. Therefore, the display of the integrated value can be realized with the existing parts of the oil combustor.

  According to a fourth aspect of the invention, when the integrated value is displayed on the display element of the operation unit in the third aspect of the invention, the stored integrated value is initialized when a specific switch of the operation unit is operated. Therefore, it is not necessary to use a dedicated switch for initializing the integrated value, and normally, the integrated value can be initialized using a switch that performs other functions.

  The fifth invention stores an integrated value of kerosene consumption that can be initialized by a user's switch operation and an integrated value of kerosene consumption that cannot be initialized by a user's switch operation, and also stores it in a nonvolatile memory such as an EEPROM. The accumulated value is retained by memorizing even if the power is cut off, and the accumulated amount of kerosene consumption that cannot be initialized by the user's switch operation during maintenance etc. You can read out the value and know how much the oil combustor has been used, and then perform maintenance.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 shows a block diagram of an oil combustor according to a first embodiment of the present invention.

  In FIG. 1, kerosene is supplied from the cartridge tank 16 through the fixed tank 15 to the combustion unit 13 by the oil pump 14. The controller 11 determines the amount of combustion according to the state such as the room temperature and the set temperature, and adjusts the drive frequency or drive pulse width of the oil pump 14 according to the amount of combustion, whereby the amount of kerosene supplied to the combustor 13. To control. Oil level detection means 17 is installed in the fixed tank 15 to notify the control unit 11 that the amount of kerosene in the fixed tank has become a certain amount or less. In addition, the control unit 11 detects the state of the switch arranged on the operation unit 12 and displays information on the room temperature and the set temperature on the display element. Further, the control unit 11 is provided with a kerosene amount integrating unit 18 for integrating the amount of kerosene supplied to the combustion unit 13 and an integrated value storage unit 19 for storing the integrated value.

  The operation and action of the oil combustor control apparatus configured as described above will be described below with reference to the flowchart of FIG.

  In FIG. 2, the kerosene consumption accumulation process is a process that is periodically executed, and the switch operation A, the switch operation B, and the switch operation C are processes that are executed when each operation is performed.

  In the kerosene consumption integration process, it is first determined whether the oil pump is operating. If it is not in operation, kerosene is not consumed, so the process branches to No and exits. If it is in operation, it branches to the Yes side and executes decision 31. In decision 31, if the unit time has not elapsed since the previous integration process, the process branches to No and exits the process. If unit time has passed, it branches to Yes side and performs the subsequent integration processes 32-34. By this determination, kerosene consumption is integrated every unit time. In the process 32, the kerosene consumption per unit time corresponding to the current combustion amount is read out from the data of kerosene consumption per unit time for each combustion amount ascertained in advance. In process 33, the read kerosene consumption per unit time is added to the current integrated value data, and in process 34, the addition result is stored in the memory as a new integrated value. The kerosene amount integrating means 18 and the integrated value storage means 19 can be configured by the above processing.

  Next, the process of the switch operation A is executed when the user performs this operation, and the integrated value is initialized. If this operation is performed when the user refuels the cartridge tank, the integrated value indicates the amount of kerosene reduced from the cartridge tank by using the oil combustor. Further, when the oil level detecting means 17 detects that the kerosene amount in the fixed tank has become a certain amount or less and the oiling lamp is turned on, if the user initializes the integrated value by operating this switch, the integrated value It is possible to know how much kerosene has been consumed after the kerosene amount in the fixed tank has fallen below a certain level.

  The process of the switch operation B is executed when the user performs this operation. Usually, the previous integrated value is displayed on the display element displaying the temperature or time, and the original display is restored after a predetermined time. Therefore, the integrated value display time timer is activated. When the mimer times out, the display is restored to the original display. Accordingly, a new display element for displaying the integrated value is not required, and the integrated value can be displayed with the existing parts of the oil combustor.

  The process of the switch operation C is executed when the user performs this operation. If the integrated value is not being displayed in the determination 39, the process branches to No and exits the process. If the integrated value is being displayed, branch to the Yes side and initialize the integrated value. This process does not require a dedicated switch for initializing the integrated value, and normally, the integrated value can be initialized using a switch that performs another function.

  Two memories for storing the integrated values are provided. One of the memories is not initialized even when the user performs an initialization switch operation, and is periodically stored in a nonvolatile memory such as an EEPROM. The integrated value is held even if the power is turned off. Further, when the power is restored, the integrated value is loaded into the one memory for storing the integrated value from a nonvolatile memory such as an EEPROM. By doing so, the maintenance staff can read out the integrated value of the kerosene consumption amount at the time of maintenance or the like, and can grasp how much the oil combustor has been used.

  Since the control device according to the present invention can display the integrated value of the consumption of kerosene using the existing parts, the user can grasp the amount of kerosene in the cartridge tank and the fixed tank. It can be applied to use as a kerosene amount confirmation device for oil combustors.

Block diagram of oil combustor in Embodiment 1 of the present invention Operation flowchart of the oil combustor Block diagram of a conventional oil combustor

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Control part 12 Operation part 13 Combustion part 14 Oil pump 15 Fixed tank 16 Cartridge tank 17 Oil level detection means 18 Kerosene amount integration means 19 Integrated value storage means

Claims (5)

A cartridge tank for supplying kerosene, a fixed tank for receiving kerosene from the cartridge tank, an oil pump for supplying kerosene from the fixed tank to the combustion unit, a control unit for controlling the flow rate and combustion air amount of the oil pump, and a user And a control unit mounted with a display element for displaying the room temperature and the like, the control unit stores an integrated value of the amount of kerosene supplied to the combustion unit by the oil pump, and the integrated A control device for an oil combustor, wherein a value can be displayed on a display element of an operation unit. 2. The control apparatus for an oil combustor according to claim 1, wherein when the specific switch of the operation unit is operated, the stored integrated value is initialized. 2. The control apparatus for an oil combustor according to claim 1, wherein when the specific switch of the operation unit is operated, the integrated value is normally displayed for a predetermined time on a display element displaying temperature or time. 4. The control apparatus for an oil combustor according to claim 3, wherein when the integrated value is displayed on the display element of the operation unit, when the specific switch of the operation unit is operated, the stored integrated value is initialized. . Stores the accumulated value of kerosene usage that can be initialized by the user's switch operation and the accumulated value of kerosene usage that cannot be initialized by the user's switch operation, and also stores it in a nonvolatile memory such as an EEPROM. The control apparatus for an oil combustor according to claim 1, wherein the integrated value is maintained even if the power is cut off.

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