JP2000249337A - Liquid fuel combustion heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance room temperature rising characteristics of a heater and to ensure comfortableness of gentle heating depending on the number of tatami mats by providing a switch for previously switching the heating capacity depending on the number of tatami mats. SOLUTION: When the room temperature is lower than a specified level, the maximum combustion quantity is switched to a level higher, by a specified amount, than a maximum combustion quantity set by a switch 8 depending on the number of tatami mats. The heater is operated at that switched maximum combustion quantity until a room temperature lower, by a specified value, than a value set by a room temperature setter 5 is reached. Subsequently, the maximum combustion quantity is returned back to a value corresponding to the number of tatami mats set by the switch 8 and the room temperature is approached to a level set by the room temperature setter 5. Under that state, a central controller 3 controls operation of a solenoid pump 9 and an electric heater 13 through a pump driver 9 and a power supply unit 12 and sustains a set target heating temperature by decreasing or stopping combustion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid-fuel-fired heater in which an operation mode can be switched in accordance with the number of tatami mats in a room so that optimal heating in accordance with the size of the room is performed. .

[0002]

2. Description of the Related Art Conventionally, for example, a fan heater of a combustion heating machine is referred to as a tatami number switch from the viewpoint that room temperature control is performed without excess or deficiency according to the size of a room to be heated. The maximum amount of combustion can be switched according to the size of the room, and comfortable heating is performed by combustion from the minimum amount of combustion to the selected maximum amount of combustion.

[0003]

However, in the above-described conventional liquid fuel combustion heater, the room in which the heater is installed is, for example, between 6 tatami mats, and the maximum combustion amount for the 6 tatami mats is a tatami number switch. If such a setting is made, on a particularly cold day or the like, there is a problem that the temperature rises slowly and the user cannot feel comfortable.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and the maximum combustion amount can be switched to a value corresponding to a tatami number set by a tatami number switch, and the combustion can be reduced. In a combustion heater in which the operation is controlled based on the room temperature set by the room temperature setter, in the case where the heating operation is started by setting other tatami values except the maximum tatami value by the tatami number switch, In addition, when the room temperature is lower than the predetermined value, the maximum combustion amount is switched to a value larger than the maximum combustion amount corresponding to the tatami number set by the tatami number switch by a predetermined amount, and the room temperature is set by the switched maximum combustion amount. Until it reaches room temperature lower by a predetermined value than the value set by the heater, then return the maximum combustion amount to a value corresponding to the tatami value set by the tatami number switch, and set the room temperature. So as to control on the basis of the room temperature set by, to constitute a liquid fuel combustion heaters.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention is configured as described above, and is a case where a heating operation is started by setting other tatami values except a maximum tatami value by a tatami number switch,
In addition, when the room temperature is lower than the predetermined value, the maximum combustion amount is switched to a value larger than the maximum combustion amount corresponding to the tatami number set by the tatami number switch by a predetermined amount, and the room temperature is set by the switched maximum combustion amount. Until it reaches a room temperature lower by a predetermined value than the value set by the chamber, after which the maximum combustion amount is returned to a value corresponding to the tatami number set by the tatami number switch, and the room temperature set by the room temperature setter. It was controlled based on.

[0006]

An embodiment of the present invention will be described below with reference to FIG.

In FIG. 1, reference numeral 1 denotes a liquid fuel combustion heater, and reference numeral 2 denotes an operation / stop switch mounted at an appropriate position. 3 is a central controller, 4 is a room temperature detector for detecting the temperature of the room to be heated, 5 is a room temperature setter for setting a target value of the heating temperature, 6 is information on the room temperature setter 5 and the above. A comparator for comparing the information of the room temperature detector 4, a vaporizer temperature detector 7 for detecting the temperature of the liquid fuel vaporizer, and a tatami number switch 8 are provided.

[0008] The tatami number switching device 8 sets the heating capacity of the heater 1 having a capacity of heating up to 10 tatami mats to 8 tatami mats.
This is for switching to 6 tatami mats, and the central control unit 3 is configured to proportionally increase or decrease the maximum combustion amount in accordance with the number of tatami mats switched and set.

Regarding the central control unit 3, for example, the setting of the tatami number switch 8 is not 10 tatami of the rated maximum combustion capacity but 8 tatami or 6 tatami lower than that, and the room temperature detector 4 detects it. The room temperature is a predetermined value, for example, 10 ° C. or less,
When, for example, 20 ° C. is set by the room temperature setting unit 5 and the start of the heating operation is instructed, the 8 tatami mat or the 6 tatami set by the tatami mat switching unit 8 is replaced by the upper tatami mat number “10”.
In addition to increasing the number of tatami mats to "8 tatami mats" or "8 tatami mats", the heating target value set by the room temperature setting device 5 is set to, for example, 18 ° C. which is lower by a predetermined value, for example, to start the operation. After that, when the room temperature detected by the room temperature detector 4 reaches the temperature of 18 ° C., the maximum combustion amount is returned to a value corresponding to the tatami number set by the tatami number switch, and the room temperature set by the room temperature setter. The control is performed based on

Reference numeral 9 denotes an electromagnetic pump for pumping up and discharging liquid fuel, reference numeral 10 denotes a pump driver for driving the electromagnetic pump 9, and reference numeral 11 denotes a vaporizer for receiving liquid fuel from the electromagnetic pump 9. Reference numeral 12 denotes an electric power supply for supplying electric power to the vaporizer 11, reference numeral 13 denotes an electric heater which generates heat by electric power supplied from the electric power supply 12, and reference numeral 14 denotes a burner for burning vaporized gas of fuel generated in the vaporizer 11. , And 15 are igniters.

The embodiment of the present invention is configured as described above, and its operation will be described below.

Now, it is assumed that the setting of the tatami number switch 8 is “8 tatami”, the setting of the room temperature setting device 5 is 20 ° C., and the room temperature detected by the room temperature detector 4 is 5 ° C. When the start / stop switch 2 is operated to start the operation in this situation, the central control device 3 switches the tatami mat set by the tatami mat switch 8 to “10 tatami mats” and changes the maximum combustion amount. Is set to one step higher than that for 8 tatami mats, and the target room temperature set by the room temperature setting device 5 is set to 18 ° C. lower by a predetermined value (here, 2 ° C.) to start operation.

Then, first, electric power for generating vaporized gas necessary for performing maximum combustion for 10 tatami mats is supplied from the power supply 12 to the electric heater 13 of the liquid fuel vaporizer 11.
After that, when it is confirmed by the vaporizer temperature detector 7 that the temperature of the vaporizer 11 has reached a predetermined value, the amount of fuel corresponding to the maximum combustion amount for 10 tatami mats is subsequently supplied. Pump 9 is supplied to the electromagnetic
Driven by At substantially the same time, the igniter 15 is driven to ignite the vaporized gas ejected from the burner 14 and start combustion. Then, when the presence of the combustion flame is confirmed by the flame detector (not shown), the blower (not shown) starts operating and heating is started.

Thereafter, when the room temperature rises and 18 ° C. is detected by the room temperature detector 4, the relatively strong maximum combustion amount for 10 tatami mats which has been set up to that time is originally set by the tatami mat number switch 8. The maximum combustion amount for heating for 8 tatami mats is returned to the set maximum combustion amount, and the relatively moderate maximum combustion amount aims at 20 ° C. set by the room temperature setter 5. In addition, when the temperature detected by the room temperature detector 4 approaches the value set by the room temperature setting device 5, the central controller 3 sends the electromagnetic pump 9 and the electric heater 13 through the pump driver 9 and the power supply 12. Is controlled to reduce or stop the combustion amount so that the set target heating temperature is maintained.

As described above, when the room temperature is lower than the predetermined value, the central control device 3 enhances the heating capacity by switching the tatami mat set by the tatami mat switch 8 to the tatami mat one rank higher. However, since the heating operation by the enhanced heating capacity is terminated at a predetermined value lower than the heating target temperature, and thereafter the operation is performed with the maximum combustion amount of the initially set tatami mats until the target temperature, it is possible to quickly approach the target room temperature. As well as being possible, it became possible to realize the original gentle heating that matches the number of tatami mats.

[0016]

As described above, according to the present invention, when the room temperature is lower than the predetermined value, the central controller switches the number of tatami mats switched by the tatami number switch to the number of tatami mats higher by a predetermined number of steps, thereby enhancing the heating capacity. However, the heating operation with the enhanced heating capacity is terminated at a predetermined value lower than the heating target temperature, and thereafter the operation is performed at the maximum combustion amount of the initially set tatami mat until the target temperature, so that the room temperature as soon as possible is approached. It became possible to achieve the original calm and comfortable heating that matches the number of tatami mats.

In the description of the embodiment, when the room temperature at the start of heating is equal to or less than a predetermined value and the tatami value set by the tatami number switch is lower than the maximum tatami value, the next higher tatami value is set. It is stated that heating is started with the maximum burning amount of the tatami mats, but in addition to the rated maximum burning amount that can be set with the tatami number switch, heating operation with a special limited maximum burning amount that is more than the rating is possible In the heater, even if the rated maximum tatami mat is set by the tatami mat switch, if the condition is satisfied, the combustion amount can be switched to a value equal to or higher than the rated value. In this case, it is needless to say that the intended effect of the present invention can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram of one embodiment of the present invention.

[Explanation of symbols]

1: liquid fuel combustion heater, 2: run / stop switch,
3: Central control device, 4: Room temperature detector, 5: Room temperature setting device,
6: comparator, 7: vaporizer temperature detector, 8: tatami number switch,
9: electromagnetic pump, 11: vaporizer, 13: electric heater.

Claims (1)

[Claims] 1. A combustion heater in which a maximum combustion amount is switched to a value corresponding to a tatami number set by a tatami number switch, and a combustion operation is controlled based on a room temperature set by a room temperature setter. In a case where the tatami number switch (8) is set to a value other than the maximum tatami value and the heating operation is started and the room temperature is lower than a predetermined value, the maximum combustion amount is reduced. The room temperature is switched to a value larger than the maximum combustion amount corresponding to the tatami number set by the number switcher by a predetermined amount, and the room temperature lower than the value set by the room temperature setting device (5) at the switched maximum combustion amount. And then return the maximum combustion amount to a value corresponding to the tatami number set by the tatami number switch, and control based on the room temperature set by the room temperature setter. A liquid fuel-fired heating machine characterized in that the heating is performed.