JPS58102025A - Combustion apparatus - Google Patents

Abstract

PURPOSE:To enable the switching of the combustion to week blow in weak combustion regardless of the difference between the room temperature and the set temperature by arranging a controller for switching in three positions (strong combustion, weak combustion and stoppage), a switch adapted to force the controller to be switched over to weak combustion and the like. CONSTITUTION:When a temperature adjuster 3 is set to the high position, the difference between the room temperature detected with a thermister 22 becomes so large that a signal from a signal line 21b moves to H to energize coils 10a and 18a, causing a relay 10 to turn to the position of strong rotation and a relay 18 to the position of opening. This activates strong combustion in the burner and strong air blow in a blower motor 9 to perform heating with a strong output. When a mild switch 6 is turned on, the signal line 21b is fixed at ''L'' through a diode 26 with a contact 6a closed therey enabling a weak heating with a weak blow in the weak combustion regardless of the difference between the room temperature and the set temperature. Thus, a comfortable heating can be done.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a combustion device configured to automatically change the amount of combustion in at least three stages depending on the difference between room temperature and a preset temperature. Conventionally, high calorie output combustion devices have three stages of combustion control with a stop of 9 low and 2 high, depending on the difference between the set value and the room temperature, in order to minimize the amount of change in room temperature and to perform smooth and comfortable room temperature control. It has been adopted. Automatic room temperature control like the one above applies to the entire room.

Although it is effective and economical for heating the room, the temperature within the reach of the hot air blown from the combustion device is higher than the average temperature of the entire room, so when considering partial heating. In some cases, manual room temperature control is preferred over automatic room temperature control. Especially if you want to spend your time exposed to warm air, strong twist firing will create too much airflow, making it impossible to spread out documents, newspapers, etc.

If it is a weak combustion, it is appropriate, but with automatic room temperature control, it is strange if the equilibrium between the room temperature and the set temperature is slightly off.

The purpose of this sanko is to resolve the above-mentioned problems, with a combustion device that automatically stops when the room temperature is higher than the set value, weakly burns when the room temperature is low, and automatically switches to strong twist firing when the temperature is even lower. A switch is provided to prevent the firing from shifting to strong twist firing. An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a front view showing the operation panel section of a combustion device according to an embodiment of the present invention, and Figs. 2 and 3 are circuit diagrams. be.

In FIG. 1, reference numeral 1 denotes an operation switch which also functions as a timer, and when it is set to the "on" position, the power is turned on to the combustion furnace apparatus and the operation lamp 2 lights up. 3 is a temperature regulator, and when the room temperature is lower than the set temperature set by this temperature regulator 3, combustion is performed at a strong or weak level, and when the room temperature is higher than the set temperature, combustion is stopped.

Reference numeral 4 denotes a reset switch, and since a lamp 5 lights up in the event of some abnormality, the reset switch 4 will solve the problem. 6 is a mild switch. When set to the ``off'' position, it operates in three modes: stop, 2 high, 9 low combustion, but when set to the ``on'' position, the lamp 7 lights up and the mild operation is performed. At the same time, it will not shift to strong twist firing and will stop depending on the room temperature and the temperature set on the temperature controller 3.

It comes to operate in two modes of weak combustion.

Next, 8 in FIG. 2 is a power outlet, 9 is a blower motor that sends warm air into the room, and a relay 1o is used to switch taps between high and 9 low. 11 is a hot air delay thermostat. 1
2 is a heater for vaporizing liquid fuel, which is controlled by a relay 13; 14 is a burner motor, which is controlled by a relay 15; 16 is a pump circuit, which is controlled by a relay 17. The relay 18 functions as a switch that changes the amount of liquid fuel supplied to the burner, and is set to perform weak combustion when the burner is closed. FIG. 3 shows a control circuit that controls the circuit shown in FIG. 2, and specifically controls the group of relays shown in FIG. 2 and timing control. 19 is a constant voltage source, and 2a and 7a are resistors, which limit the currents of the operating lamp 2 and the mild lamp 7.

3a is a variable resistor of the temperature regulator 3, 2o is a resistor, and 21 is a thermistor 22 used as an example of a detector for detecting room temperature.
This is a controller that compares the resistance value of the variable resistor 3a with the resistance value of the variable resistor 3a, and makes a decision.When combustion is stopped, the signal line 21a becomes L#, and the relay 1 connected to the output of the reversing drive element 23
No current flows through the coil 15a of Fig. 6, and the relay 15 of Fig. 2
opens and moves.

During combustion, the operation is reversed. The signal line 21b has strong combustion.

It is connected so that when it is "L", it is a weak combustion, and when it is 'H', it is a strong twist firing. 24゜26 is connected to the output of the relay 10. Each coil 10a of the relay 18
, 18a is an inversion driving element connected to the inverting drive element.

In the above configuration, when the operation switch 1 in FIG. 1 is turned on, the switch 1 is closed in FIG. 2.

At this time, the signal line 21a in FIG. 3 becomes "H", so the burner motor 14 in FIG. 2 is energized to pre-purge the burner, and then the control section 27 in FIG. 13 is closed and the vaporizing heater 12 is energized to heat the burner section, and then the control section 27 in FIG. 2 closes the relay 17 in FIG. 2 and the pump circuit 16 is energized.
Liquid fuel is supplied to the burner, where it vaporizes and combustion begins.

When the warm air delay thermostat 11 shown in FIG. 2 closes due to this combustion, the blower motor 9 is energized and hot air is blown out.

In this combustion, for example, if the temperature controller 3 in Fig. 1 is set to "high", the difference between the room temperature detected by the thermistor 22 and the set temperature is large, and the signal from the signal line 21b in Fig. 3 becomes 'H''. Therefore, the coil 10a.

18a is energized, relay 1o is on the strong rotation side, relay 18
is switched to the open side, strong twisting is performed in the nozzle, and the blower motor 9 is turned on to blow strong air, so that heating is performed with strong output.

Then, when the room temperature approaches the set temperature, the signal from the signal line 21b becomes I L j, and the energization to the coils 10a and 18a is cut off, resulting in weak combustion and heating with a weak output of air blowing, and then the room temperature reaches the set temperature. At this point, the signal from the signal line 21a will stop the current flowing to the coil 15a and stop combustion.

Now, in this configuration, when the mild switch 6 in FIG. 1 is turned on, the contact 6a in FIG. 3 closes, so the signal line 2
1b is fixed to "L" through the diode 26, so that regardless of the size of the difference between the set temperature and the room temperature, weak heating (mild combustion) with weak air blowing is performed with weak combustion, and at this time, the mild lamp is 7 will also be lit.

Of course, even in this combustion, when the room temperature reaches the set temperature, the combustion is stopped by the signal line 21a.

As described above, according to the present invention, regardless of the magnitude of the difference between the room temperature and the set temperature, combustion can be performed with weak combustion and weak ventilation, and comfortable heating can be performed.

[Brief explanation of the drawing]

FIG. 1 is a front view of essential parts of a combustion device according to an embodiment of the present invention, and FIGS. 2 and 3 are electrical circuit diagrams of the same device. 6... Mild switch (switch), 7...
... Lamp, 22 ... Thermistor (detector).

Claims (2)

[Claims] (1) A detector that detects the room temperature, a controller that switches the combustion amount to at least three stages: strong twist firing, weak combustion, and stop, depending on the difference between the room temperature detected by the detector and the set temperature; A combustion device equipped with a switch that forcibly switches the burner to low combustion. (2) The combustion device according to claim 1, further comprising a lamp that is turned on in response to a switch operation.