JP2000097432A - Kerosene vaporization combustion heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To alleviate an abrupt generation noises at the time of increasing vaporization gas quantity after completion of an ignition. SOLUTION: When on-off operation of combustion is performed, for increasing combustion quantity after completion of an ignition in order to make a room temperature approach a set target temperature, either a gradual increase method or a straight increase method can be selected as a combustion quantity increase method in coincidence with an on or off manipulation of a selector 13 for selecting a silent operation or not. By this method, although change in gas injection sound is large in an off state, gas injection quantity is increased straightly so that the target temperature can be reached earlier by this operation. On the other hand, in an on state, since the gas injection quantity is gradually increased, exposure to a violent change in gas injection sound is avoided and a comfortable heating can be enjoyed without being annoyed with noises although recovery of room temperature is somewhat delayed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heater for heating by burning kerosene vaporized by a vaporizer, and more particularly, to a combustion amount (oil amount) after ignition is confirmed at the start of a combustion operation. ) Is designed so that the increase in noise as it transitions to the higher target level is not perceived as sensory.

[0002]

2. Description of the Related Art A hot air heater such as a fan heater using kerosene as a fuel is increasing in heat generation year by year, and is now usable in a large room of 13 to 18 tatami mats.
Products with w output have also been commercialized.

[0003]

However, in the case of a vaporized Bunsen type combustor in which kerosene is vaporized by a vaporizer and burned, the sound of the vaporized gas injected from the nozzle of the vaporizer corresponds to the increase in the amount of combustion. However, it is said that the number of warmers who feel harsh has increased. In particular, after the ignition at the beginning of operation, after the warm-up operation of the combustor is completed,
The change in the injection sound when the combustion amount increases from that during warm-up operation (about 3 KW) to the maximum (5 Kw)
Since it is much larger than that of a conventional small model, improvement has been desired.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a kerosene storage means, a pump for pumping kerosene in the kerosene storage means, and a kerosene pumped by the pump. And a nozzle for injecting the gas vaporized by the vaporizer,
A burner for receiving and burning the gas injected from the nozzle, a spark plug for igniting the gas ejected from the burner, a flame rod for detecting a flame generated by being ignited by the spark plug, An operation indicator for instructing stop, a room temperature detector for detecting room temperature, a room temperature setting device for setting room temperature, a quiet operation selector for selecting whether or not to perform quiet operation, and a room temperature detection after completion of ignition When it is necessary to increase the amount of combustion from that at the time of ignition based on the room temperature detected by the heater and the room temperature set by the room temperature setter, the pump oil discharge amount is gradually increased toward the target combustion level or immediately. And a control circuit for controlling whether to increase the number based on the signal of the quiet operation selector, thereby constituting a kerosene-vaporizing combustion heater.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is configured as described above. When performing the on / off operation of the combustion, when the combustion amount is increased to bring the room temperature to a target set temperature after the completion of ignition, It is possible to select whether to increase the combustion amount gradually or immediately according to the ON or OFF of a selector for selecting whether or not to perform the quiet operation.

Thus, although the change in the gas injection sound is large when the power is off, the gas injection amount is increased at a stretch, and the target temperature can be reached earlier.

On the other hand, when the switch is turned on, since the change in the gas injection amount gradually increases, the recovery of the room temperature is slightly delayed, but comfortable heating can be performed without causing a drastic change in the gas injection sound. I did it.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a cartridge type oil tank, 2 denotes an oil pan for storing kerosene supplied from the oil tank 1 while maintaining a constant oil level, and 3 denotes kerosene from the oil pan 2. It is an electric pump that pumps up. Reference numeral 4 denotes a vaporizer that receives kerosene pumped by the pump 3 and heats it to a vaporization temperature, which has a built-in electric heater.
Reference numeral denotes a nozzle for injecting the gas of kerosene vaporized by the vaporizer 4, and reference numeral 6 denotes a burner for burning the vaporized gas injected from the nozzle 5.

Reference numeral 7 denotes an ignition plug for igniting vaporized gas ejected from the flame forming portion of the burner 6, and 8 denotes a burner 6
Is a frame rod that detects the presence of a flame by being exposed to the flame generated in the frame rod.

9 is an operation indicator for instructing start and stop of the combustion operation, 10 is a room temperature detector for detecting the room temperature, 11
Is a room temperature setter for setting a heating target temperature, 12 is a timer setter for setting a combustion start time, a combustion end time, and a combustion time, and 13 is a quieter for selectively setting whether or not to perform a quiet operation. In the driving selector and 14
The pump 3 and the vaporizer 4 are operated based on the signals from the operation indicator 9, the room temperature detector 10, the room temperature setter 11, the timer setter 12, the quiet operation selector 13 and the frame rod 8.
And a control circuit for driving and controlling the ignition plug 7.

In one embodiment configured as described above,
When the operation indicator 9 is operated with the silent operation selector 13 turned off, the control circuit 14 first starts supplying power to the heater of the vaporizer 4. Thereafter, when it is confirmed through a vaporizer temperature detector (not shown) that the vaporizer temperature has reached a predetermined value for ignition, the drive of the pump 3 is started to a kerosene discharge amount preferable for ignition. Subsequently, when a flame is detected through the frame rod 8, the discharge amount is reset to a slightly reduced amount of warm-up oil, a warm-up operation is performed for a predetermined time (for example, 4 minutes), and then the target combustion level is set. At a stretch to the rated maximum combustion level (level "7") (FIG. 2).

In this case, since the change of the injection sound of the vaporized gas occurs instantaneously, it is no wonder that some people are worried about this phenomenon.

Thereafter, when the room temperature set by the room temperature setting device 11 is detected by the room temperature detector 10, the control circuit 14 changes the drive of the pump according to the detected room temperature, and the target room temperature is maintained. To be controlled. In the meantime, despite the fact that the amount of combustion is set to a minimum,
When an increase in room temperature exceeding the set room temperature is observed for a predetermined time or longer, the driving of the pump 3 is stopped to prevent combustion.

If it is observed through the room temperature detector 10 that the room temperature has decreased by a predetermined value while the combustion operation is stopped, the control circuit 14 resumes the ignition operation and the pump 3 and the ignition The plug 7 is driven to reignite, and in this case, the warm-up operation is performed for 30 seconds, which is much shorter than the initial 4 minutes of the operation, and then the combustion at the target combustion level is performed.

In many cases, the target combustion level after re-ignition does not reach the rated maximum combustion level again, since the heating operation has just been performed. Changes are relatively unobtrusive. However, in some cases, such as when the air in the heated space is completely replaced, the operation may be restarted at the rated maximum combustion level. When this combustion operation is repeated with the silent operation selector 13 turned off, the oil supply amount of the pump 3 is switched to the maximum combustion level at a stretch after the warm-up operation, and a remarkable change in the injection noise occurs. However, since the operation with the maximum combustion amount is immediately performed, the advantage that the recovery of the room temperature is quickened accordingly is not lost.

The above is the operation mode when the silent operation selector 13 is off.

Next, a case where the silent operation selector 13 is turned on will be described with reference to FIG.

The control up to the end of the warm-up operation is the same as in the case where the quiet operation selector 13 is turned off.

However, when the four-minute warm-up operation is completed and the target combustion level is switched to the rated maximum combustion level "7", the control circuit 14 switches the combustion amount to the combustion level "4" of 3.2 Kw. The operation is performed for 6 seconds, and then the operation is performed at 3.7 Kw for 6 seconds, then at 4.3 Kw for 6 seconds, and finally reaches the target combustion amount of 5 Kw. In other words, by gradually increasing the vaporized gas injection amount in a stepwise manner instead of all at once, so that the change in the injection sound accompanying the increase in the injection amount does not seem to increase at once, so that the unpleasant sound is not easily perceived. Has become.

Thereafter, when the room temperature set by the room temperature setting unit 11 is detected by the room temperature detector 10, the control circuit 14 changes the drive of the pump according to the detected room temperature, and the target room temperature is maintained. The amount of kerosene spout is controlled so that In the meantime, if the increase in room temperature exceeding the set room temperature is observed for a predetermined time or more even though the combustion amount is set to the minimum value, the drive of the pump 3 is stopped to prevent combustion. To

If it is observed through the room temperature detector 10 that the room temperature has decreased by a predetermined value while the combustion operation is stopped, the control circuit 14 resumes the ignition operation, and the pump 3 The plug 7 is driven to reignite, and in this case, the warm-up operation is performed for 30 seconds, which is much shorter than the initial 4 minutes of the operation, and then the combustion at the target combustion level is performed.

In many cases, the target combustion level after re-ignition is unlikely to reach the rated maximum combustion level again due to the fact that the heating operation has just been performed. Does not matter much irrespective of whether the silent operation selector 13 is turned on or off. However, in some cases, such as when the air in the heated space is completely replaced, the operation may be restarted at the rated maximum combustion level. When the combustion operation is repeated with the silent operation selector 13 turned on, the kerosene discharge amount of the pump 3 increases stepwise after the warm-up operation, as described above, so that the increase in the injection amount increases. The change of the injection sound becomes gentle, and the unpleasant sound is not easily perceived. However, in this case, it is necessary to be aware that it is not possible to delay the arrival at the target room temperature, albeit slightly, because it does not immediately shift to the target combustion level.

As described above, in the present invention, when the on-off operation is performed, the method of increasing the combustion amount when the combustion amount is increased in order to bring the room temperature to the target set temperature after the completion of the ignition is silent. Since it is possible to select whether the operation is to be performed gradually or at a stretch according to the on / off of the selector 13 for selecting whether or not to perform the operation. The amount is increased at once, and the target temperature can be reached earlier.

On the other hand, when the switch is turned on, the change in the gas injection amount gradually increases, so that the recovery of the room temperature is slightly delayed, but the warmer is not exposed to a drastic change in the gas injection sound. It is possible to enjoy comfortable heating without being bothered by noise.

[0026]

As described above, according to the kerosene-vaporizing combustion heater of the present invention, when the on-off operation is performed,
The method of increasing the amount of combustion when increasing the amount of combustion in order to bring the room temperature to the target set temperature after the completion of ignition depends on whether the selector for selecting whether or not to perform the quiet operation is turned on or off. , Incremental or immediate?
Can be selected, so that if it is turned off, the change in the gas injection sound is large, but the gas injection amount is increased at a stretch and the target temperature can be reached earlier by that much.

On the other hand, when the switch is turned on, the change in the gas injection amount gradually increases, and although the recovery of the room temperature is slightly delayed, the gas injection sound is not exposed to a drastic change and the noise is not bothered. You can enjoy comfortable heating that will not be done.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of operation when a quiet operation selector is off according to one embodiment of the present invention.

FIG. 3 is an explanatory diagram of operation when a quiet operation selector is turned on according to one embodiment of the present invention.

[Explanation of symbols]

3: pump, 4: vaporizer, 5: nozzle, 6: burner,
7: spark plug, 8: flame rod, 9: operation indicator, 10: room temperature detector, 11: room temperature setting device, 12: timer setting device, 13: quiet operation selector, 14: control circuit.

Continuation of the front page (72) Inventor Akio Matsuda 3-1, Shinjuyoji, Kashiwa-shi, Chiba F-term in Hitachi Home Tech Co., Ltd. (reference) 3K003 EA01 FA01 FB01 FC05 GA04 HA03 3K068 FA01 FB06 FB14 FC02 FC06 FD04 HA05 JA02

Claims (1)

[Claims] 1. Kerosene storage means (2), a pump (3) for pumping kerosene in the kerosene storage means, and a vaporizer (4) for vaporizing kerosene pumped by the pump.
A nozzle (5) for injecting gas vaporized by the vaporizer, a burner (6) for receiving and burning the gas injected from the nozzle, and a spark plug (7) for igniting the gas ejected from the burner. ), A flame rod (8) for detecting a flame generated by being ignited by the spark plug, an operation indicator (9) for instructing start and stop of operation, and a room temperature detector (10) for detecting room temperature. A room temperature setting device (11) for setting a room temperature; a quiet operation selector (13) for selecting and setting whether or not to perform a quiet operation; and a room temperature detected by the room temperature detector and the room temperature setting after ignition is completed. When the amount of combustion needs to be increased from that at the time of ignition based on the room temperature set by the heater, the amount of kerosene discharge of the pump is gradually increased toward the target combustion level or is increased immediately. Kerosene vaporizing type combustion heater, characterized by being composed out with control circuit (14) controlled based on the signal of the quiet operation selector whether to.