JP2527263Y2 - Radiant heating system - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a radiant heating device that uses radiant heat obtained by heating a glowing material with a burner as main heating heat.

(Prior art) This type of radiant heating device heats a red-hot material with a burner, transmits the radiant heat to the outside through heat-resistant glass, and discharges the hot air heated by the burner to the outside with a convection blower. It is designed to assist in heating. And the blowing amount of the hot air was adjusted by decreasing the rotation speed of the blower when the temperature was lowered.

(Problems to be solved by the present invention) However, in the case of simply changing the rotation speed of the convection blower according to the temperature as described above, the air is blown even when the combustion amount is reduced. As a result, the warm air was felt as cold air, and the combustion amount could not be sufficiently reduced. In other words, a wide combustion amount could not be set.

Further, since the blower is always operated, there is a problem that the power consumption of the blower is large.

Therefore, the present invention can intermittently operate the convection blower according to the temperature, so that when the combustion amount decreases, the blower can be stopped, the range of the combustion amount can be set wider, and the power consumption of the blower can be reduced. It is an object of the present invention to provide a radiant heating device capable of producing warm air close to nature as a sense of sensation since the blown hot air is intermittent.

[Structure of the Invention] (Means for Solving the Problems) The present invention relates to a heating device in which radiant heat obtained by heating a glowing material with a burner is mainly used as heating heat. Convection blower, a thermostat that detects the temperature of hot air obtained by heating with a burner, opens and closes during operation of the device, and controls the convection blower to operate intermittently, and a convection using this thermostat A changeover switch is provided for selecting the intermittent operation of the blower and the continuous operation of the convection blower not using the thermostat, and discharges hot air intermittently during the intermittent operation using the thermostat.

(Operation) In the present invention having such a configuration, radiant heat is generated from the glowing material heated by the burner and becomes heating heat. The hot air obtained by heating with the burner is blown outside by a convection blower. Then, at the time of the intermittent operation, the blower is intermittently operated by the thermostat which opens and closes according to the temperature of the hot air, so that the blown hot air has a strong rhythm. In the continuous operation, the blower is continuously operated regardless of the temperature detection of the thermostat.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

2 and 3, reference numeral 1 denotes a base, 2 stands upright on the base 1, and is a brick tile provided so as to surround a side surface, and 3 denotes a top plate. A card 4 is provided in the center of the front, and a combustion hood 6 made of a heat-resistant glass 5 having a light-transmitting front is provided inside the card 4.

A burner 7 is provided at the bottom of the combustion hood 6, and on the burner 7, a glowing material (SiC) 8 made of a combination of charcoal and silicon is stacked just like firewood.

An exhaust hole 9 having a relatively small diameter is provided at the top of the combustion hood 6, and a blowing guide 10 is disposed above the top of the combustion hood 6. The space surrounded by the top of the combustion hood 6 and the air guide 10 is an air passage.

A thermostat 11 is attached to the blower guide 10 near the upper part of the exhaust hole 9.

Reference numeral 12 denotes a rear panel. Inside the rear panel 12, a convection blower 13 is mounted. The convection blower 13
Has a function of taking in air through a plurality of holes formed in the rear panel 12 and blowing the air from the front side to the outside through the air passage.

FIG. 1 shows a circuit configuration in which a commercial AC power supply 21 is connected via a bidirectional three-terminal thyristor 22 to a vaporizer heater 23 for heating the vaporizer. Thyristor 22
Gate, between terminals connected photothyristor 24 ₁ via the resistor 25.

An AC input terminal of a diode bridge circuit 28 is connected to the power source 21 via a normally open contact 26m of a first relay 26 and a normally open contact 27m of a second relay 27 in series. A solenoid valve 29 is connected to a rectification output terminal of the diode bridge circuit 28 for controlling opening and closing of a vaporized gas supply path to the burner 7. The normally open contact 27m has a resistance of 3
0 is connected in parallel.

The power supply 21 has a normally open contact 26m of the first relay 26.
Connected capacitor 31 through the ignition transformer 33 through the normally closed side of the switching contact 32 ₁ of the third relay 32 is connected to the capacitor 31.

The switching contact 32 ₁ of the third relay 32 is connected to the electrode 21.
While connecting the convection blower 13 via the normally open side and the normally closed side of the switching contact 34 ₁ of the fourth relay 34 in series,
Normally open side of the switching contact 32 ₁ of the third relay 32, the fourth
Connecting the convection blower 13 via the normally open side and the thermostat 11 of the switching contact 34 ₁ of the relay 34 in series.

Further, a control circuit unit 35 containing a microcomputer or the like is connected to the power supply 21.

The control circuit 35 is connected with an operation switch 36, a changeover switch 37 for selecting and switching between continuous operation and intermittent operation of the convection blower 13, and the third and fourth relays 32 and 34, respectively. Also the control circuit section 35 first through a switch 38 interlocked with the operation switch 36, the light emitting diode 24 ₂ is connected to output the second relay 26, 27 and light to the photo-thyristor 24 ₁ I have. The control circuit unit 35 further includes a vaporizer thermistor 39 for detecting a vaporizer temperature, a room temperature thermistor 40 for detecting a room temperature, an electromagnetic pump 41 for supplying kerosene from the kerosene tank side to the vaporizer, and a flame of the burner 7. The frame rods 42 are respectively connected.

The control circuit unit 35 is set to perform the following operation control.

When the operation switch 36 is turned on, first, the light emitting diode
Operate 24 ₂ . In this state, the detected temperature of the vaporizer thermistor 39 is checked. When the detected temperature reaches a predetermined temperature, the first and second relays 26 and 27 are turned on. Further, the electromagnetic pump 41 is operated. The second relay 27 is turned off after a certain time. Further, when a predetermined time has elapsed, the third relay 32 is turned on.

When the changeover switch 37 is switched to the intermittent operation side, the fourth relay 34 is turned on.

When the room temperature thermistor 40 detects a preset temperature, the first relay 26 is turned off.

In this embodiment having such a configuration, the changeover switch
37 allows you to select between continuous operation and intermittent operation. For example, the intermittent operation is selected by the changeover switch 37. This makes the fourth
The relay 34 is normally open side turned-atmospheric closed side of the switching contact 34 ₁ is opened is closed.

When the operation switch 36 is turned on in this state, the switch 38 is simultaneously turned on. And first the light emitting diode 24 ₂
Is turned on. Thus thyristor 22 operates photothyristor 24 ₁ is triggered. In this way, the thyristor 22 is turned on, and the power supply to the vaporizer heater 23 is started, so that the vaporizer is heated.

The temperature of the vaporizer is detected by the vaporizer thermistor 39. When the vaporizer temperature reaches a predetermined temperature, the first relay 26 and the second relay 27 are turned on and the electromagnetic pump 41 is turned on.
Is operated. As a result, the normally open contacts 26m and 27m are closed, the solenoid valve 29 is operated, and the ignition transformer 33 is operated. After a certain time, the second relay 27 is turned off and its normally open contact 27m is opened. Thus, once the solenoid valve 29 operates, the amount of current is suppressed by the resistor 30 and the holding current flows.

In this way, kerosene is supplied from the tank to the vaporizer and vaporized, and is ignited by the ignition transformer 33. Thus, the flame is blown out from the burner 7 and the combustion operation is started.

The combustion flame from the burner 7 heats the glowing material 8 and the radiant heat from the glowing material 8 is transmitted to the outside through the heat-resistant glass 5.

When a predetermined time has elapsed after the start of the combustion operation, the third relay 32 is turned on. Thus the normally closed side of the switching contact 32 ₁ normally open side is open is closed.

However, at this time, since the inside of the combustion hood 6 is not sufficiently heated, the temperature of the ventilation path surrounded by the ventilation guide 10 is low, and the thermostat 11 is off. Therefore, the convection blower 13 does not start operating.

Thus, at the start of combustion, heating is performed only by radiant heat for a while.

Thereafter, when the temperature in the combustion hood 6 rises and the heated air inside the combustion hood 6 passes through the exhaust hole 9 into the air blowing path, the temperature of the air blowing path increases. Then, the thermostat 11 is turned on. Thus, the convection blower 13 starts to operate. Then, the air blown by the convection blower 13 becomes hot air in this blowing path and is discharged to the outside.

In this way, heating is performed not only by radiant heat but also by warm air.

The operation of the convection air blower 13 gradually lowers the temperature of the air passage. When the temperature drops to a certain temperature, the thermostat 11 turns off again. Thus, the operation of the convection blower 13 is stopped, and the discharge of the warm air is stopped.

When the operation of the convection air blower 13 is stopped, the air passage is heated by the heated air from the combustion hood 6 and the temperature rises.

Then, when the temperature of the air passage becomes equal to or higher than a certain temperature, the convection air blower 13 starts operating again.

As described above, the operation of the thermostat 11 causes the convection air blower 13 to operate when the temperature of the air passage is high, and the operation of the convection air blower 13 to be stopped when the temperature of the air passage becomes low.
The discharged hot air can be made sufficiently warm. Therefore, even if the amount of combustion is reduced, the temperature of the air passage when the convection air blower 13 operates is determined by the thermostat 11, so that hot air that feels cold is not discharged. In other words, the amount of combustion can be set widely.

Further, since the convection blower 13 is not operated continuously, the power consumption of the blower can be reduced.

Furthermore, since the hot air can be intermittently discharged, a strong and weak rhythm can be added to the hot air, so that the natural air can be felt as a natural feeling.

When the changeover switch 37 is set to the continuous operation side,
The relay 34 is kept off, so that the convection blower 13 operates continuously regardless of the operation of the thermostat 11 at this time.

Furthermore, since the appearance of the device is configured using brick tiles, the heat insulating effect of the device can be enhanced, and the device can have a heavy feeling.

[Effects of the Invention] As described above in detail, according to the present invention, the convection blower can be operated intermittently according to the temperature, so that when the combustion amount decreases, the blower can be stopped, and the range of the combustion amount can be widened. It is possible to provide a radiant heating device that can be set and reduce the power consumption of the blower, and the hot air to be blown is intermittent, so that a warm air close to nature can be obtained as a bodily sensation.

[Brief description of the drawings]

1 shows an embodiment of the present invention, FIG. 1 is a circuit diagram, FIG. 2 is a front view, and FIG. 3 is a side sectional view. 5: heat-resistant glass, 6: combustion hood, 7: burner,
8 ... red-hot material, 9 ... exhaust hole, 10 ... ventilation guide, 11 ...
… Thermostat, 13… convection blower.

Claims (1)

(57) [Scope of request for utility model registration] 1. A heating device in which radiant heat obtained by heating a red-hot material with a burner is mainly used as heating heat, a convection blower for blowing hot air obtained by heating with the burner to the outside, and heating by the burner. A thermostat that detects the temperature of the hot air obtained by opening and closing during the operation of the apparatus and controls the intermittent operation of the convection fan, and the intermittent operation of the convection fan using the thermostat and the use of the thermostat. And a changeover switch for selecting a continuous operation of the convection blower, wherein the hot air is intermittently discharged during intermittent operation using the thermostat.