JP4239901B2 - Oil combustor safety equipment - Google Patents

Description

  The present invention relates to a safety device for a core vertical oil combustor using a dry battery as a main power source.

  The core up and down type oil combustor is a device that manually operates the core lifting device to raise the core to the combustion position, energizes the igniter to ignite the core and burns it. It was manually operated to lower the wick to the fire extinguishing position and extinguish the fire. Dry batteries were mainly used only for igniters.

  Recently, there has been a demand to use a safety device that automatically extinguishes when an abnormality occurs in the room where the combustor is installed, such as a combustor using an AC power source for home use, even in an oil combustor that uses dry batteries. As a safety device for oil-type oil combustors, thermistors that detect room temperature and sensors such as CO, CO2, and NOx monitor the combustion state, and when the combustor causes abnormal combustion, there is a fire extinguishing mechanism such as an electric motor or solenoid. Some are fired automatically.

Electric motors and solenoids that make up the fire extinguishing mechanism require a large amount of current during operation, and if the power supply voltage decreases due to dry battery consumption, the fire extinguishing mechanism may become inoperable and may not function as a safety device . For this reason, a dry battery voltage detecting means is provided, and when the dry battery voltage becomes abnormally low, the fire extinguishing mechanism is operated to extinguish the fire and inform the user of the abnormal battery voltage (see Patent Document 1). .
Patent No. 2508200

  In the configuration for detecting the voltage of the dry battery as described above, when performing voltage detection in a state close to no load in which the igniter or the fire extinguishing mechanism is not energized, a normal voltage value may be detected even with a dry battery. Yes, even if the voltage is normal, the fire extinguishing mechanism may become inoperable.

  In addition, since the igniter continues to give constant heat energy to the core and ignites, it can ignite if energization is continued for a while even if the battery is consumed and the voltage drops, but the fire extinguishing mechanism operates instantaneously when energized When the dry battery is exhausted and the voltage drops, it becomes inoperable and the combustor may be burned even when the safety device cannot be operated.

  Thus, in the conventional configuration, the voltage of the dry battery may not be accurately detected, which causes a safety problem, and the dry battery needs to be replaced before the safety device becomes inoperable. An object of the present invention is to realize an improvement in safety by accurately detecting the voltage of a dry cell so that the combustor cannot combust in a state where the safety device cannot operate.

The present invention solves the above-described problem. The combustor 1 includes an igniter 3 that uses a dry battery 2 as a power source, an abnormality detection unit 4 that detects a state of a room in which the combustor is installed, and an abnormality detection unit. 4 and a fire extinguishing mechanism 5 that operates in response to an output signal, and an automatic fire extinguishing device 6 that operates when an abnormality such as an earthquake occurs to stop the combustor 1. start the operation of the abnormality detecting means 4, in the combustor abnormality detecting means 4 for extinguishing mechanism 5 upon detecting abnormality to automatically extinguish by operating the automatic fire extinguishing system 6, the voltage detecting means for detecting a power supply voltage of the battery 2 8 is provided, said voltage detection means 8 starts the detection of the power supply voltage of battery 2 operates after a predetermined time T1 has elapsed from the energization start of the igniter 3 by the ignition switch 7, the voltage detecting means 8 abnormal low voltage V The The extinguishing mechanism 5 is operated at the time out to is characterized in that the automatic fire extinguishing.

By thus the voltage detecting means 8 starts detecting the power supply voltage of the igniter 3 energization starts operating after a predetermined time T1 elapses batteries 2, normal batteries 2 is the voltage drop during energization of the igniter 3 Even if the dry battery 2 returns to the original voltage in a short time, it takes time for the voltage that has been reduced when the igniter 3 is energized to recover to the original voltage. Since the low voltage V is detected, the voltage abnormality of the dry battery 2 can be accurately detected.

Further, a voltage detection means 8 for detecting the power supply voltage of the dry battery 2 is provided, and the voltage detection means 8 is activated after a predetermined time T2 has elapsed since the ignition switch 7 has stopped energization of the igniter 3 . start the detection, the voltage detecting means 8 actuates the extinguishing mechanism 5 at the time of detecting an abnormal low voltage V by automatically extinguishing, even when the battery 2 becomes longer energizing time of the igniter 3 in a normal state In addition, malfunction of the fire extinguishing mechanism 5 can be prevented.

  Further, when the voltage detection means 8 detects the abnormal low voltage V of the dry battery 2, the fire extinguishing mechanism 5 is operated to automatically extinguish the fire after the predetermined time T3 has elapsed since the detection of the abnormal low voltage V. Since the fire extinguishing mechanism 5 is activated after the voltage of the dry battery 2 lowered by the above is recovered, the combustor 1 can surely extinguish.

  The combustor using the dry battery 2 as a main power source is a device in which a large amount of current flows when the igniter 3 and the fire extinguishing mechanism 5 are energized, the voltage of the dry battery 2 temporarily decreases, and recovers to the original voltage after the ignition operation. However, when the dry battery 2 is consumed, even if there is no abnormality in the voltage in the no-load state, the voltage is greatly reduced when the igniter 3 or the fire extinguishing mechanism 5 is energized, and the battery 2 does not operate normally.

  The present invention pays attention to this point, and if the voltage detection means 8 detects the power supply voltage of the dry battery 2 when the ignition switch 3 is energized by the ignition switch 7, Since the detection means 8 detects the abnormal low voltage V and activates the fire extinguishing mechanism 5 to automatically extinguish the fire, the user notices the abnormality of the dry battery 2 and puts the new dry battery 2 in the state in which the safety device operates reliably. It became possible to replace and use, and the trouble that the safety device did not operate after ignition was not generated.

  In addition, the normal battery 2 recovers to the original voltage in a short time even if the voltage temporarily decreases when the igniter 3 is energized, but the consumed dry battery 2 greatly decreases when the igniter 3 is energized, It takes time to recover to the original voltage. In the present invention, since the voltage detection means 8 is activated after a predetermined time T1 has passed since the igniter 3 is energized, when the voltage detection means 8 is activated, the voltage is already recovered if it is a normal dry battery 2. The fire extinguishing mechanism 5 did not malfunction, and the voltage of the dry battery 2 could be detected accurately.

  Further, although the ignition time may be prolonged even if the dry battery 2 is in a normal state due to an ignition mistake or the like, if the voltage detection means 8 is operated after a predetermined time T2 has elapsed after the energization of the igniter 3 is stopped. The fire extinguishing mechanism 5 did not malfunction, and the voltage of the dry battery 2 could be detected accurately.

  Further, when the voltage detecting means 8 detects the abnormal low voltage V of the dry battery 2, the fire extinguishing mechanism 5 is activated after the elapse of a predetermined time T3 from the detection of the abnormal low voltage V, and after the elapse of the predetermined time T3. Since the voltage of the dry battery 2 lowered by the energization of the igniter 3 is recovered, the fire extinguishing mechanism 5 operates reliably and the combustor 1 can be extinguished, and the user notices the abnormality of the dry battery 2. It was possible to do.

  The present invention will be described with reference to an embodiment of a core up-down type oil combustor shown in the figure. 1 is a combustor constituting a core up-down type burner, 9 is a core up-and-down device that moves up and down a core (not shown), and 7 is a core up-and-down device. An ignition switch manually operated after the lead raising operation by 9, 3 is an igniter constituted by an ignition heater or the like approaching the lead raised by the lead lifting device 9, and 2 is a dry battery constituting the power source of the combustor 1, When the wick is raised to the combustion position by the elevating device 9 and the ignition switch 7 is closed, the igniter 3 is energized, and the igniter 3 ignites the wick and the combustor 1 starts burning.

  6 is an automatic fire extinguishing device attached to the core lifting device 9 of the combustor 1, 6 a is a seismic weight constituting the automatic fire extinguishing device 6, and 6 b is an operating part that engages the core lifting device 9 at the combustion position. When the seismic weight 6a is detected and falls when strong vibration is applied to 1, the engaging portion 6b and the core lifting device 9 are disengaged, and the core lifting device 9 forces the core to the fire extinguishing position. It moves and extinguishes the combustor 1.

  By the way, recently, there is a demand to improve safety even in a core up-down type oil combustor using a dry battery 2 as a power source, and an increase in the number of sensors equipped with a safety device for automatically extinguishing fire when an abnormality occurs in the combustor 1 is increasing. It is coming.

  4 is an abnormality detection means for detecting the state of the room in which the combustor 1 composed of a thermistor for detecting the room temperature or a sensor such as CO, CO 2, NOx, etc. is installed, and 5 is operated by an output signal of the abnormality detection means 4. It is a fire extinguishing mechanism constituted by an electric motor, a solenoid or the like. When the abnormality detecting means 4 detects an abnormality during combustion of the combustor 1, the fire extinguishing mechanism 5 activates the automatic fire extinguishing device 6 to automatically extinguish the combustor 1.

  In the embodiment shown in the figure, the abnormality detecting means 4 is constituted by a CO2 sensor attached to the frame of the combustor 1, and the fire extinguishing mechanism 5 is constituted by a solenoid. The indoor CO2 concentration detected by the CO2 sensor is a reference. When the value exceeds the value, the solenoid is energized, and the actuating pin of the solenoid moves the actuating part 6b to disengage the actuating part 6b from the core lifting device 9, so that the automatic extinguishing device 6 is activated to automatically extinguish the fire. is there.

  Reference numeral 9a denotes an operation switch that operates in conjunction with the center raising operation by the core lifting device 9, and the operation switch 9a is connected to the dry battery 2. When the core is raised to the combustion position by the core lifting device 9, the operation switch 9a is closed. The abnormality detection means 4 and the fire extinguishing mechanism 5 are energized.

  In the above configuration, since the igniter 3 and the fire extinguishing mechanism 5 consume a large amount of current during operation, the voltage of the dry battery 2 temporarily decreases when the igniter 3 and the fire extinguishing mechanism 5 are energized. When it is consumed, the voltage drop during energization of the igniter 3 and the fire extinguishing mechanism 5 increases.

  And since the fire extinguishing mechanism 5 operates instantaneously when energized, the dry battery 2 is consumed, and when the voltage drops greatly, it does not operate normally. However, the igniter 3 continues to give constant heat energy to the core and ignites. Even if the dry battery 2 is exhausted, it can be ignited if the energizing time of the igniter 3 is lengthened. Therefore, replacement is easy to be delayed without noticing the consumption of the dry battery 2. Even if ignition can be performed by the igniter 3, there is a possibility of causing a trouble that the fire extinguishing mechanism 5 which is a safety device does not operate when an abnormality occurs.

  For this reason, it is necessary to ensure the capacity | capacitance for the dry cell 2 to operate | move the fire extinguishing mechanism 5 which is a safety device reliably, and it is necessary to detect the voltage of the dry cell 2 as the countermeasure. The dry battery 2 may maintain almost the same voltage as that of a new dry battery even when the dry battery 2 is close to no load when the igniter 3 and the fire extinguishing mechanism 5 are not energized. Even when the fire extinguishing mechanism 5 is energized, the voltage may drop greatly and may not operate, and the voltage of the dry battery 2 cannot be accurately detected in a no-load state.

  The present invention solves the above-mentioned problem. Reference numeral 8 denotes voltage detection means for detecting the voltage of the dry battery 2. The voltage detection means 8 is ignited so that a difference in the voltage of the dry battery 2 tends to occur when the igniter 3 is energized. The fire extinguishing mechanism 5 activates the automatic fire extinguishing device 6 to extinguish the combustor 1 when the voltage detecting means 8 detects an abnormal low voltage V or less.

  The present invention pays attention to the fact that there is a difference in voltage that decreases when the igniter 3 is energized between a new dry battery and an exhausted dry battery. If the dry battery 2 is depleted, it is abnormally low when the igniter 3 is energized. Since the voltage V is detected, an abnormality of the dry battery 2 can be reliably detected even when there is no difference in voltage from the new dry battery in the no-load state.

  Reference numeral 10 denotes alarm means for turning on a warning lamp or sounding an alarm when the voltage detection means 8 detects an abnormal low voltage V. The voltage detection means 8 detects the abnormal low voltage V and activates the alarm means 10. As a result, the user can notice the consumption of the dry battery 2 and can be used by replacing it with a new dry battery 2 before the fire extinguishing mechanism 5 becomes inoperable. It is no longer generated.

  In another embodiment of the present invention, 11 is a timer means for controlling the operation timing of the voltage detecting means 8, and the timer means 11 starts counting when the igniter 3 is energized, and when a predetermined time T1 elapses. The voltage detection means 8 is set to start operation.

  3 and 5 (a) show the operation of the combustor 1 and the fluctuation of the voltage of the dry cell 2. The voltage of the dry cell 2 temporarily decreases when the igniter 3 is energized, and the igniter 3 is ignited after ignition of the core. When the energization of the battery is stopped, it returns to the original voltage, and is maintained at a constant voltage in the subsequent no-load state. However, when the dry battery 2 is exhausted, the voltage that has decreased during the ignition operation is restored to the original voltage. The time will be longer. Therefore, if the battery is a normal battery, the voltage detection means 8 that operates after a predetermined time T1 detects a normal voltage. If the battery 2 is exhausted, the voltage detection means 8 detects an abnormally low voltage V. Thus, the abnormality of the dry battery 2 can be detected.

  Even in a normal dry battery 2, the voltage may drop instantaneously to near the abnormal low voltage V when the igniter 3 is energized. In this configuration, however, the voltage detection means 8 is operated after the lapse of a predetermined time T 1 from the energization of the igniter 3. Since it operates, it does not cause malfunction, and the voltage can be detected accurately.

  In another embodiment of the present invention shown in FIGS. 4 and 5 (b), the timer means 11 starts counting after the igniter 3 is de-energized, and the voltage detecting means 8 starts operating after a predetermined time T2. If the battery is a normal battery, the voltage detection means 8 that operates after the elapse of a predetermined time T2 detects a normal voltage. If the battery 2 is exhausted, the voltage detection means 8 is abnormal. The low voltage V is detected, and an abnormality of the dry battery 2 can be detected.

  The structure in which the voltage detection means 8 operates after a predetermined time T1 has passed since the energization of the igniter 3 is such that even if the dry battery 2 is normal, if the energization time of the igniter 3 becomes longer due to an ignition error or the like, the voltage recovery is delayed. Although the means 8 may detect an abnormally low voltage V, this configuration requires a circuit for detecting the energization of the igniter 3, but the voltage detection means 8 operates after the igniter 3 is energized. Therefore, even when there is a delay in voltage recovery due to an ignition error or the like, it is possible to accurately detect abnormality of the dry battery 2.

  Further, in the above configuration, the exhausted dry battery 2 may not return to the voltage when the voltage detecting means 8 detects the abnormal low voltage V, and the fire extinguishing mechanism 5 is energized immediately when the abnormal low voltage V is detected. Even then, the fire extinguishing mechanism 5 may not operate.

  In the present invention, when the voltage detecting means 8 detects the abnormal low voltage V of the dry battery 2, the timer means 11 starts counting again, and the fire extinguishing mechanism 5 is set to operate after a predetermined time T3, As shown in FIG. 5, when the fire extinguishing mechanism 5 is energized and operated, the dry battery 2 is restored to the original voltage, so that the fire extinguishing mechanism 5 does not become inoperable and the combustor 1 surely extinguishes. It was possible to do.

It is the circuit diagram which showed the function of this invention with the block. It is principal part sectional drawing of the oil combustor which shows the Example of this invention. It is a flowchart which shows the structure of the other Example of this invention. It is a flowchart which shows the structure of the other Example of this invention. It is explanatory drawing which shows the voltage state of the dry battery in the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combustor 2 Dry cell 3 Igniter 4 Abnormality detection means 5 Fire extinguishing mechanism 6 Automatic fire extinguishing device 7 Ignition switch 8 Voltage detection means

Claims (4)

The combustor 1 includes
An igniter 3 that uses the dry battery 2 as a power source, an abnormality detection means 4 that detects the state of the room in which the combustor is installed, and a fire extinguishing mechanism 5 that operates according to the output signal of the abnormality detection means 4 are provided.
An automatic fire extinguishing device 6 is provided to stop the combustor 1 by operating in the event of an abnormality such as an earthquake,
At the same time that the igniter 3 is energized during the ignition operation by the ignition switch 7, the operation of the abnormality detecting means 4 is started,
In the combustor in which the fire extinguishing mechanism 5 operates the automatic fire extinguishing device 6 and automatically extinguishes when the abnormality detecting means 4 detects abnormality,
A voltage detecting means 8 for detecting a power supply voltage of the battery 2 is provided,
The voltage detection means 8 is activated after a predetermined time T1 has elapsed from the start of energization of the igniter 3 by the ignition switch 7, and starts detecting the power supply voltage of the dry battery 2.
A combustor safety device, wherein when the voltage detection means 8 detects an abnormal low voltage V, the fire extinguishing mechanism 5 is activated to automatically extinguish the fire. The combustor 1 includes
An igniter 3 that uses the dry battery 2 as a power source, an abnormality detection means 4 that detects the state of the room in which the combustor is installed, and a fire extinguishing mechanism 5 that operates according to the output signal of the abnormality detection means 4 are provided.
An automatic fire extinguishing device 6 is provided to stop the combustor 1 by operating in the event of an abnormality such as an earthquake,
At the same time that the igniter 3 is energized during the ignition operation by the ignition switch 7, the operation of the abnormality detecting means 4 is started,
In the combustor in which the fire extinguishing mechanism 5 operates the automatic fire extinguishing device 6 and automatically extinguishes when the abnormality detecting means 4 detects abnormality,
A voltage detecting means 8 for detecting a power supply voltage of the dry cell 2 is provided;
The voltage detection means 8 operates after a predetermined time T2 has elapsed since the ignition switch 7 has stopped energizing the igniter 3, and starts detecting the power supply voltage of the dry battery 2 .
The voltage detecting means 8 activates the extinguishing mechanism 5 at the time of detecting an abnormal low voltage V safety device combustor you characterized by automatically extinguishing. The combustor 1 includes
An igniter 3 that uses the dry battery 2 as a power source, an abnormality detection means 4 that detects the state of the room in which the combustor is installed, and a fire extinguishing mechanism 5 that operates according to the output signal of the abnormality detection means 4 are provided.
An automatic fire extinguishing device 6 is provided to stop the combustor 1 by operating in the event of an abnormality such as an earthquake,
At the same time that the igniter 3 is energized during the ignition operation by the ignition switch 7, the operation of the abnormality detecting means 4 is started,
In the combustor in which the fire extinguishing mechanism 5 operates the automatic fire extinguishing device 6 and automatically extinguishes when the abnormality detecting means 4 detects abnormality,
A voltage detecting means 8 for detecting a power supply voltage of the dry cell 2 is provided;
The voltage detection means 8 detects the power supply voltage of the dry battery 2 when the igniter 3 is energized by the ignition switch 7,
The voltage detecting means 8 upon detecting an abnormal low voltage V battery 2, the abnormal low voltage from the detection of V to actuate the fire-extinguishing mechanism 5 after a predetermined time T3 has elapsed combustor you characterized by the automatic fire extinguishing Safety device. When detecting an abnormal low voltage V of the voltage detecting means 8 batteries 2 activates the extinguishing mechanism 5 from the detection of the abnormal low voltage V after the predetermined time T3 has elapsed, characterized in that the automatic fire extinguishing in claim 1, wherein safety device of combustor according to claim 2.

Images