JP2012021731A - Combustion device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combustion device that efficiently executes inspection during a process of manufacturing a body.SOLUTION: In a process of inspecting the operation of a tank detecting means 33 that detects whether a fuel tank 31 is located in a tank chamber 32 disposed in a fan heater body 1, a combustion control section 3 stops normal mode and starts test mode when a power source detecting section 29 detects power-on, and an input detecting means 30 detects that a predetermined plural operation switches are pressed. A light emitter 21 is turned on when a tank detecting switch 35 of a tank detecting means 33 is pressed. The light emitter is turned off and information is given when the tank detecting switch is not pressed. A worker can visually determine whether the tank detecting switch 35 of the tank detecting means 33 is in normal operation or not, thereby enabling simple, efficient and quick inspection.

Description

  The present invention relates to a combustion device that heats a room by burning fuel oil.

  Conventionally, in this type of tank, a tank detection means for detecting the presence or absence of a fuel tank in the tank housing chamber of the combustion equipment body is provided by a micro switch or the like, and a normal mode in which combustion is started and warm air is sent to the space to be heated Sometimes, if the tank detection means cannot detect the presence of the fuel tank, the combustion control unit stops the combustion operation because the fuel tank is not in the tank housing chamber. (For example, Patent Document 1)

JP 2001-355830 A

However, in this conventional apparatus, an inspection for confirming whether the tank detection means operates normally is performed in the tank housing chamber of the combustion apparatus that is in a combustion operation during the inspection in the work process in which the combustion apparatus is assembled and manufactured. Since it is necessary to judge whether or not the combustion operation is stopped by taking out the stored fuel tank, and it is necessary to start the combustion operation again for the next combustion inspection, the time required for the entire work process There was a protracted problem.
In addition, when the fuel tank is inserted into the combustion device during the manufacturing process in which the combustion device is assembled and manufactured, the fuel tank hits the combustion device and damages the combustion device and the fuel tank.

  In order to solve the above-mentioned problems, according to claim 1 of the present invention, a main body having a combustion section for burning fuel, a tank storage chamber provided in the main body for storing a fuel tank, and a fuel installed in the tank storage chamber A combustion apparatus comprising: a tank detection unit that detects the presence of a tank; and a combustion control unit that controls a normal mode for stopping a combustion operation if the tank detection unit cannot detect the presence of a fuel tank. Is provided with a test mode in which the combustion operation can be performed regardless of the detection state of the fuel tank by the tank detection means.

  According to a second aspect of the present invention, there is provided a main body having a combustion section for burning fuel, a display section for displaying an operation state and various operation states of the main body, a tank storage chamber provided in the main body for storing a fuel tank, Combustion provided with tank detection means installed in the tank housing chamber for detecting the presence of the fuel tank, and a combustion control unit for controlling the normal mode for stopping the combustion operation if the tank detection means cannot detect the presence of the fuel tank. In the apparatus, the combustion control unit includes a test mode in which a combustion operation is possible regardless of a detection state of the fuel tank by the tank detection unit, and when the tank detection unit detects the presence of the fuel tank in the test mode. In the normal mode, the presence of the fuel tank is displayed on the display unit that does not display the presence of the fuel tank.

  According to a third aspect of the present invention, the display unit has a light-emitting body that notifies the operation state and various operation states of the main body by turning on and off, and the tank detection means detects that there is a fuel tank in the tank housing chamber in the test mode. When this occurs, the light emitter is turned on.

  According to a fourth aspect of the present invention, the power supply detection unit for detecting that the main body is turned on is provided, and the combustion control unit cancels the test mode if the power supply detection unit cannot detect the power after the test mode is activated. To return to the normal mode.

  According to the first aspect of the present invention, since a test mode is provided that enables the combustion operation regardless of the detection state of the tank detection means for detecting whether the fuel tank is in the tank housing chamber, product inspection at the time of manufacture is provided. Sometimes, the combustion operation can be continued regardless of the presence of the fuel tank, the next inspection can be performed regardless of the presence of the fuel tank, and the inspection work process can be performed efficiently.

According to a second aspect of the present invention, the test mode that enables the combustion operation is activated regardless of the detection state of the tank detection means for detecting whether the fuel tank is in the tank housing chamber, and the fuel tank is operated in the normal mode. Since the presence of the fuel tank is displayed on the display section that does not indicate the presence of fuel, combustion operation can be continued regardless of the presence of the fuel tank at the time of product inspection when manufacturing, and the next inspection is performed regardless of the presence of the fuel tank The work process to be inspected can be performed efficiently.
In addition, a dedicated display part for displaying the presence of the fuel tank at the time of product inspection is no longer necessary, and the operator can easily determine by checking the display section for the presence or absence of the fuel tank. It can be performed efficiently.

  According to claim 3 of the present invention, since the display unit for displaying the presence / absence of the fuel tank is a light emitter, the operator can visually determine the presence / absence of the fuel tank at an early stage. Work time can be shortened.

  According to the fourth aspect of the present invention, if the power source cannot be detected by the power source detection unit that detects whether the power source is turned on, the test mode is canceled and returned to the normal mode, so that the test mode setting is maintained. The product can be safely used after the product inspection is completed.

Sectional drawing of the combustion appliance which shows one Embodiment of this invention Top view of the same embodiment Cross-sectional view of main parts without fuel tank of the same embodiment Cross-sectional view of the main part when there is a fuel tank of the same embodiment Control block diagram of the embodiment The flowchart which shows the operation | movement at the time of the test | inspection process of the embodiment

Next, an embodiment of the present invention will be described with reference to FIGS.
Reference numeral 1 denotes a fan heater body as a combustion device installed indoors. Inside the fan heater body 1, a burner 2 that performs combustion, and a combustion control unit 3 mainly composed of a microcomputer that controls the operation of the fan heater, The fan heater body 1 includes a convection blower 4 in the rear opening, a hot air outlet 5 on the front surface of the fan heater body 1, and an operation portion 6 on the front side of the fan heater body 1, and combustion exhaust in the burner 2. Heating is performed by blowing gas from the hot air outlet 5 into the room by the convection fan 4.

  The burner 2 includes a vaporizer 9 having a vaporization heater 8 at the lower part of a burner head 7 having a plurality of flame holes. The burner 2 has a volume from an oil pan 10 in the vaporizer 9 heated by the vaporization heater 8. A liquid fuel is supplied through an oil feed nozzle 12 by driving an electromagnetic pump 11 of the type, and a mixed gas of vaporized gas obtained by vaporizing the liquid fuel and combustion air supplied from a combustion blower 13 through a blower passage 14 is supplied to the burner. Combustion is performed in the flame holes of the head 7, and during combustion, heat is recovered from the flame by an annular heat recovery ring 15 provided at the upper end of the vaporizer 9 so as to face the plurality of flame holes, thereby reducing energization of the vaporization heater 8. It has a wide turndown ratio and performs quiet vaporization combustion.

  The operation unit 6 includes an operation switch 16 for instructing start / stop of operation, a room temperature setting unit 19 configured by a room temperature increase switch 17 and a room temperature decrease switch 18 for setting a desired room temperature, and saving fuel. A light-emitting body 21 as a display unit composed of a save operation switch 20 for starting the combustion operation, a plurality of operation switches such as a timer switch and a preheating standby switch, and an LED for emitting and notifying the state of each operation switch; A liquid crystal display 22 for displaying time and set room temperature is provided.

  Reference numeral 23 denotes a vaporization temperature sensor for detecting the temperature of the vaporizer 9 heated by the vaporization heater 8. The combustion controller 3 turns off the vaporization heater 8 when the temperature detected by the vaporization temperature sensor 23 reaches a predetermined upper limit temperature. When the predetermined lower limit temperature is reached, the vaporization heater 8 is turned on to keep the temperature of the vaporizer 9 within a temperature range in which the liquid fuel can be vaporized well.

  Further, the combustion control unit 3 monitors the temperature detected by the vaporization temperature sensor 23 according to the operation command of the operation switch 16 and heats the vaporizer 9 to a temperature at which liquid fuel can be vaporized by the vaporization heater 8. When the temperature of the vessel 9 is raised to a temperature suitable for combustion, the electromagnetic pump 11 and the combustion blower 13 are started to drive, the ignition gas is ignited by the ignition device 24 to start the combustion operation, and the combustion sensor 25 by the flame rod is used. The electromagnetic pump 11 detects a flame and responds to a deviation between a detected room temperature of a room temperature sensor 26 provided in the vicinity of the convection blower 4 on the back of the fan heater body 1 and a set room temperature set by the room temperature setting means 19. In addition, the combustion blower 13 is controlled to control the combustion blower 13 so that the room temperature set by the room temperature setting means 19 is reached.

  In this variable control of the combustion thermal power, the drive frequency of the combustion blower 13 and the drive frequency of the electromagnetic pump 11 are set in advance as a set by subdividing into a plurality of stages, and the deviation between the detected room temperature and the set room temperature and the room temperature. This is done by selecting subdivided firepower according to the change gradient.

  The combustion control unit 3 includes a timer unit 27 and a storage unit 28. When the timer unit 27 receives an operation stop command from the operation switch 16, the convection blower 4, the vaporization heater 8, and the electromagnetic pump 11 and the combustion blower 13 are appropriately extinguished according to the count of the timer unit 27 to realize a comfortable extinguishing without odor and smoke, and when the incomplete combustion is detected by the combustion sensor 25, the counting starts. The count is stopped after a predetermined time has elapsed.

  The storage unit 28 stores the number of incomplete combustion detected by the combustion sensor 25 while the combustion sensor 25 detects incomplete combustion and the timer unit 27 counts a predetermined time.

  Reference numeral 29 denotes a power source detection unit provided in the combustion control unit 3 for detecting power ON / OFF to the fan heater main body 1 when a power failure is restored or a power plug (not shown).

  Reference numeral 30 denotes an input detection means provided in the combustion control unit 3 for determining which operation switch is pressed when a plurality of operation switches on the operation unit 6 are pressed.

  Reference numeral 31 denotes a fuel tank capable of storing liquid fuel for combustion inside. By supplying liquid fuel stored in the tank storage chamber 32 installed in the fan heater body 1 into the oil tray 10. Combustion operation becomes possible.

  Reference numeral 33 denotes tank detecting means for detecting whether or not the fuel tank 31 exists in the tank housing chamber 32. The rotating body 34 is rotatable about a shaft in a fixed direction, and the rotating body 34 is rotated. The tank detection switch 35 can detect that the fuel tank 31 is in the tank housing chamber 32 by turning the switch ON.

  In addition, when the combustion control unit 3 presses the operation switch 16 to start combustion to perform combustion operation, the fuel tank 31 is removed from the tank housing chamber 32 and the tank detection switch 35 is turned off. When this is detected, the normal mode in which the combustion operation is immediately stopped is controlled.

Next, the control during the work process for inspecting the operation of the tank detection means 33 will be described with reference to the flowchart of FIG.
First, after putting the liquid fuel into the oil tray 10 so as to be combustible, the power detector 29 determines whether the power to the fan heater body 1 is turned on (S101). If the power ON can be detected, the liquid crystal display 22 is displayed. Is turned on for a predetermined time to notify that the power has been turned on and the timer unit 27 starts counting time (S102). If the power ON cannot be detected, the determination of S101 is repeated.

  When the power ON is detected in S102 and the liquid crystal display 22 is turned on and the time counting by the timer unit 27 is started, the room temperature provided on the operation unit 6 before the time counting by the timer unit 27 counts a predetermined time. It is judged by the input detection means 30 whether or not a plurality of operation switches by the rise switch 17, the room temperature drop switch 18 and the save operation switch 20 are simultaneously pressed (S103), and a plurality of operation switches are simultaneously pressed within a predetermined time. Is detected, the combustion control unit 3 stops the normal mode and activates the test mode (S104). If it is not detected that the predetermined time has been exceeded or a plurality of operation switches are pressed simultaneously, the determination in S103 is repeated.

  When the test mode is activated in S104, the combustion control unit 3 determines whether the tank detection switch 35 of the tank detection means 33 is in the ON state (S105). If it is informed (S106) and is in the OFF state, the light emitter 21 is turned off (S107).

  If the illuminant 21 is lit in S106, it is determined that the tank detection switch 35 is in the ON state. However, since the fuel tank 31 is not in the tank housing chamber 32 during the inspection operation, an abnormal reaction occurs. If there is, the work process is interrupted, and if the light emitter 21 is turned off in S107, it is determined that the reaction is normal, and the process can proceed to the next work process for confirming the operation of each operation switch. However, it is possible to determine whether or not the tank detection switch 35 is operating normally only by visually confirming the light emitter 21, and the time required for the inspection work can be shortened.

  If it is determined in S107 that the illuminator 21 is turned off and the tank detection switch 35 is normal, an inspection for confirming that predetermined items are displayed on the liquid crystal display 22 by pressing each operation switch, or a fan heater When the main body 1 is tilted to the front, an inspection is performed to confirm whether the anti-seismic device is activated and the combustion is stopped, and when a predetermined inspection item is completed, whether or not the power supply to the fan heater main body 1 has been completed is determined. If it is determined at 29 (S108) and the power OFF is detected, the combustion controller 3 returns the control content from the test mode to the normal mode and proceeds to the next work process (S109).

  Further, in the dielectric withstand voltage test, which is another work process, when the liquid fuel is extracted from the oil pan 10 and the fuel tank 31 is placed in the tank housing chamber 32 and the operation switch 16 is turned on, the combustion control unit 3 is insulated. When the tank detection switch 35 of the tank detection unit 33 is in the ON state by operating the pressure-resistant inspection mode, the liquid crystal display 22 is controlled to display the temperature. Therefore, the operation check in the ON state of the tank detection switch 35 is performed. Can be done.

  As described above, in the work process for inspecting the operation of the tank detection means 33 for detecting whether the fuel tank 31 exists in the tank storage chamber 32, it is confirmed that a plurality of operation switches are pressed within a predetermined time in the power-on state. When detected, the combustion control unit 3 stops the normal mode and activates the test mode, whereby it is possible to confirm the visual operation by turning on and off the light emitter 21, and the fuel tank 31 is placed in the tank housing chamber 32. Even if it is not inserted, it is possible to easily determine whether the tank detection switch 35 of the tank detection means 33 operates normally, so that the inspection work can be performed in a short time, and an efficient work process can be performed.

DESCRIPTION OF SYMBOLS 1 Fan heater main body 3 Combustion control part 21 Luminescent body 29 Power supply detection part 31 Fuel tank 32 Tank accommodating chamber 33 Tank detection means

Claims (4)

  A main body having a combustion section for burning fuel; a tank housing chamber provided in the main body for housing a fuel tank; tank detecting means for detecting the presence of the fuel tank installed in the tank housing chamber; and the tank detecting means If the presence of the fuel tank cannot be detected, the combustion control unit has a combustion control unit that controls the normal mode for stopping the combustion operation, and the combustion control unit burns regardless of the detection state of the fuel tank by the tank detection means. Combustion equipment comprising a test mode for enabling operation.   A main body having a combustion section for burning fuel, a display section for displaying an operation state and various operation states of the main body, a tank storage chamber provided in the main body for storing a fuel tank, and installed in the tank storage chamber A combustion apparatus comprising: a tank detection unit that detects the presence of a fuel tank; and a combustion control unit that controls a normal mode that stops a combustion operation if the tank detection unit cannot detect the presence of the fuel tank. The test unit has a test mode for enabling combustion operation regardless of the detection state of the fuel tank by the tank detection means. When the tank detection means detects the presence of the fuel tank in the test mode, the fuel tank is in the normal mode. Combustion equipment characterized by displaying the presence of a fuel tank on a display unit that does not display the presence of fuel.   The display unit has a light emitter that notifies the operation state and various operation states of the main body by turning on and off, and when the tank detection means detects that there is a fuel tank in the tank housing chamber in the test mode, the light emitter The combustion apparatus according to any one of claims 1 and 2, wherein:   A power detection unit for detecting that the power source is turned on, and the combustion control unit cancels the test mode and returns to the normal mode if the power detection unit cannot detect the power after the test mode is activated. The combustion apparatus according to any one of claims 1 to 3, wherein

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