JPH0112093Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention relates to a heating device that performs hot air heating and hot water floor heating by attaching a hot water floor heating device to a hot air heater such as an FF type. .

<Prior art> Utility patent application filed in 1984 by the applicant
As seen in No. 164218, a coil-shaped hot water heat exchanger is installed inside the combustion chamber of an FF hot air heater, and a circulation unit with a built-in hot water tank and circulation pump is installed outside the heater, and is laid on the floor. There were some that circulated hot water through a hot water radiator to provide floor heating, etc.

<Problems to be solved by the invention> In this conventional example, a hot water heat exchanger, circulation unit, and radiator are incorporated or connected to the heater as necessary, but the electrical connection between the circulation unit and the heater is There are still many inconveniences in terms of, for example, the circulation unit and the heater need to be powered separately, and this causes the problem that the operation of the heater and the drive on the circulation unit side are not linked or synchronized. .

<Means for solving the problem> In a system that is equipped with a hot water heat exchanger heated by the combustion burner of a heater, and a radiator is connected via a circulation unit connected to the hot water heat exchanger to perform hot water heating. The circulation pump in the circulation unit is connected to the power supply side of the heater operation switch via the A contact of the changeover switch and to the load side of the operation switch via the C contact of the changeover switch, and is further connected to the hot water heat exchanger. The present invention relates to a heating device characterized by being equipped with an alarm device that detects and issues an alarm when abnormally high temperatures occur.

<Function> By performing well-known operation, the combustion burner 3
Combustion is started, and the exhaust gas or exhaust heat is discharged from the main heat exchanger 8 and the exhaust pipe 9 while heating the hot water heat exchanger 14.

At this time, the air from the convection fan 10 absorbs heat from the main heat exchanger 8 and releases it as warm air, thereby performing hot air heating.

On the other hand, since the circulation pump 18 of the circulation unit 16 is also started, the heated hot water from the hot water heat exchanger 14 is circulated to the radiator 19, where the heat is radiated, and hot water heating is performed.

Also, by operating the changeover switch 56,
Independent operation of the circulation unit 16 is also possible regardless of the operating switch 24.

<Embodiment> Reference numeral 1 denotes a main body of a heater such as an FF type heater, which is provided with a box-shaped combustion chamber 2 inside.

A pot-type combustion burner 3 is provided in communication with the lower part of the inside of the combustion chamber 2, and a pilot ring 4 for forming a combustion flame is provided inside the combustion burner 3.

Reference numeral 5 denotes an intake cylinder of an intake/exhaust device, which takes in outside air, supplies combustion air through a combustion fan 6, and supplies fuel into the combustion burner 3 through a combustion supply device 7 such as an oil amount regulator.

The fuel supply device 7 includes a first solenoid valve 47 and a second solenoid valve 48.

Exhaust gas or heat exhaust generated by combustion flows into the main heat exchanger 8 and is discharged from the exhaust pipe 9.

10 is a convection fan that sucks room air, passes it through the main heat exchanger 8, converts it into warm air, and blows it out from the outlet 11.

Reference numeral 12 denotes an opening provided in the front wall of the combustion chamber 2, through which the combustion chamber 2 is inspected and maintained, and under normal conditions, the lid 13 is detachably attached using a fastening material such as a screw.

Using this cover body 13, a hot water heat exchanger 14 formed by winding a pipe in a coil shape is provided hanging down on the back side, and by attaching and detaching the cover body 13, the hot water heat exchanger 14 is connected to the combustion burner 3 in the combustion chamber 2. It can be placed on the top or be removable.

Both ends of the hot water heat exchanger 14 pass through the lid 13 and are led out to the front side of the lid 13 to form hot water pipes 15,
15, and the other of the two is connected to a circulation unit 16 which is arranged separately from the heater 1.

The circulation unit 16 is provided with a liquid storage tank 17 that communicates with the atmosphere and releases the expansion of the hot water, and a circulation pump 18 that forcibly circulates the hot water within the hot water circuit. It is connected to a radiator 19 such as a heating panel.

20 is a commercial AC power source, 21 is a power supply fuse, and 22 is a delay thermostat attached to the main heat exchanger 8 that closes when the temperature exceeds a set temperature.

Reference numeral 23 denotes a safety thermostat attached to the back surface of the heater body 1, which closes when the temperature is abnormally high.

24 is an operation switch, and 25 is an anti-shock switch.

26 is a delay thermostat 22 in parallel with the convection fan 10.
The first relay is connected in series with the first relay and includes normally closed first relay switches 27, 28, 29 and a normally open first relay switch 30.

Reference numeral 31 indicates an oil supply lamp connected to a float switch 32 for detecting oil amount, and reference numeral 33 indicates a mixed water lamp connected to a float switch 34 for detecting mixed water.

35 is a timer connected in parallel with the timer lamp 36 and having timer contacts 37;

A second relay 38 is connected in series with a diode 39 and a resistor 40, and in parallel with a charging circuit consisting of a diode 41, a resistor 42, and two capacitors 43 and 44, and a normally open second relay switch 45. The first relay switch 27
When there is a momentary power outage of about 3 to 4 seconds, the second relay switch 45 is kept closed by discharging the charging circuit.

46 is an ignition heater provided within the combustion burner 3.

A first solenoid valve 47 is connected to the power source 20 side of the convection fan 10 and supplies a small amount of fuel to the combustion burner 3 when energized.

Reference numeral 48 designates a second electromagnetic valve that supplies a large amount of fuel to the combustion burner 3 when the series-connected electromagnetic valve thermometer 49 detects a temperature higher than the set temperature of the combustion burner 3 and closes the valve.

50 is an operating lamp connected in parallel with the power source.

Reference numeral 51 denotes an electric circuit on the main body side of the heater 1. Although the electric circuit 51 allows hot air heating by the heater 1 alone, by adding an electric circuit 52 on the hot water heating side, hot air heating and hot water heating can be performed. The heating can be operated simultaneously or independently.

The electric circuit 52 on the hot water heating side mainly controls the circulation unit.

Further, the electric circuit 52 on the hot water side is connected to the hot water heat exchanger 1.
A series circuit of an anti-dry thermometer 54 provided on the outlet pipe of No. 4, an alarm 55 that issues an alarm with sound or light, a series circuit of the a contact of the changeover switch 56 and the circulation pump 18 are connected in parallel with the operation lamp 50, In addition, the c contact of the changeover switch 56 is connected to the power supply 20 from the operation switch 24.
For example, it is connected to a delay thermostat 22 on the side.

The electric circuit 52 on the hot water heating side is connected to the printed wiring board 57 of the heater 1, and its actual wiring diagram is shown in FIG.

i.e. the housing 58 which communicates with the operating lamp 50.
Then, remove the housing 59 that connects to the delay thermostat 22, and connect the housings 60, 61 and terminals 62, 6.
3, 64, 65 is connected between the printed wiring board 57 and the housings 58, 59, and the heating prevention thermostat 54 and the circulation unit 16 are connected to this wiring unit 66. There is no need to change the wiring of the main body 1 or the printed wiring board 57.

The invention is constructed as described above, and the operation will be explained next. The combustion fan 10 is driven to close the operation switch 24, and the first electromagnetic valve 47 with a small flow rate and the ignition heater 46 are energized to supply fuel to the combustion burner 3. It ignites and starts preliminary combustion.

Furthermore, the second relay 38 is energized and the second relay switch 45 is closed.

When the preliminary combustion continues and the combustion burner 3 reaches the set temperature, the solenoid valve thermostat 49 closes and the second solenoid valve 4 closes.
8 is energized, a large amount of fuel is supplied to the combustion burner 3, and when the delay thermometer 22 detects the set temperature, the convection fan 10 is energized and warm air is discharged from the outlet 11.

At the same time, the first relay 26 is also energized, and the normally open contacts of the first relay switches 27, 28, 29, and 30 are closed, and the normally closed contacts of the first relay switches 27, 28, 29, and 30 are opened.

Therefore, the energization to the ignition heater 46 is terminated.

Further, when the heater 1 becomes abnormally high temperature and the safety thermostat 23 is opened or the anti-seismic switch 25 is opened, the second relay 38 becomes de-energized and the second relay switch 38 opens and the first solenoid valve 47 and the second solenoid valve are opened. 4
8 is closed and the operation lamp 50 is turned off.

The same thing happens when the operation switch 24 is opened.

Thereafter, even if the anti-seismic switch 25 and the safety thermostat 23 are restored, the system will not restart operation.

Also, at this time, the first relay 26 and the convection fan 10 close to the power source 20 are energized as long as the delay thermostat 22 continues to be turned on, and the combustion fan 10 also continues to be driven.

Next, when the temperature of the main heat exchanger 8 decreases and the delay thermostat 22 is opened, the entire operation is stopped.

Furthermore, when operating the electric circuit 52 on the hot water heating side, if the changeover switch 56 of the circulation unit 16 is the a contact, it moves to open and close the operation switch 24 of the heater 1, turning the circulation pump 18 on and off. ,
Hot water heated by the combustion burner 3 and passed through the hot water heat exchanger 4 is circulated to a radiator 19 installed on the floor or the like to perform floor heating.

When the changeover switch 56 is a c-contact, the circulation pump 18 can be operated independently regardless of whether the operation switch 24 is opened or closed, and floor heating can be performed using the residual heat after the heater 1 is stopped.

Further, when the changeover switch 56 is a b contact, the circulation pump 18 is not connected to the power source, so it is not driven, and the heater 1 can be operated only for hot air heating.

Also, when the hot water heat exchanger 14 becomes abnormally heated, the overheat prevention thermometer 54 detects this and activates the alarm 55 in the circulation unit 16 to notify the user of the abnormality.

<Effect of the invention> The hot water heat exchanger 14 heated by the combustion burner 3 of the heater 1 is connected to the radiator 19 via the circulation unit 16 connected to the hot water heat exchanger 14 to perform hot water heating. In the circulation unit 16
The circulation pump 18 in
0 side and connected to the load side of the operation switch 24 via the C contact of the changeover switch 56, and further detects abnormally high temperature of the hot water heat exchanger 14 and provides an alarm 5.
5, power to the circulation unit can be supplied from the heater, and heating by the heater and radiator can be linked by opening and closing the operation switch of the heater, and can be operated with a single touch.

Furthermore, the radiator can be operated independently regardless of the operation switch, and hot water heating is also possible using the residual heat after the hot air heater is stopped.

Also, when abnormal heating of the hot water heat exchanger is detected, an alarm is activated to prevent overheating.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of this invention, FIG. 2 is an electric circuit diagram thereof, and FIG. 3 is a wiring diagram of the same. 1... Heater, 3... Combustion burner, 14... Hot water heat exchanger, 16... Circulation unit, 18... Circulation pump, 19... Heat radiator, 20... Power supply, 24
...operation switch, 55...alarm, 56...changeover switch.

Claims (1)

[Scope of utility model registration request] In a system that includes a hot water heat exchanger 14 heated by the combustion burner 3 of the heater 1 and connects a radiator 19 via a circulation unit 16 connected to the hot water heat exchanger 14 to perform hot water heating, the circulation unit 16
The circulation pump 18 in
0 side and connected to the load side of the operation switch 24 via the C contact of the changeover switch 56, and further detects abnormally high temperature of the hot water heat exchanger 14 and gives an alarm.
5. A heating device characterized by comprising: