JPH0624671Y2 - Oil hot air heater - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an oil warm air heater that automatically burns a carburetor.

<Prior Art> Conventionally used oil hot air heaters of this type have a constant vaporizer temperature at the start of combustion regardless of room temperature.

<Problems to be solved by the invention> That is, when the ignition temperature of the carburetor is constant, the ignition is bad due to the room temperature condition (the room is cold), white smoke is emitted at the time of ignition, or the ignition becomes defective. is doing.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an oil warm air heater that raises the combustion start temperature of the carburetor when the room temperature is low.

<Means for Solving Problems> In the present invention, a room temperature sensor and a carburetor temperature detection sensor are connected to a controller of a carburetor having a carburetor, and the controller controls the temperature of the carburetor at the start of combustion. , When the room temperature detected by the room temperature detection sensor is low, it is set to a high value, and when the room temperature detected by the room temperature detection sensor is high, it is set to a low value, and this set temperature is compared with the detection temperature of the carburetor temperature sensor, It is configured to start combustion when the temperature detected by the carburetor temperature sensor reaches a set temperature.

<Operation> Due to the above configuration, the temperature of the vaporizer is detected by the temperature detection sensor, the room temperature is also detected by the room temperature detection sensor, both temperatures are compared with the data of the microcomputer of the control unit, and combustion starts if the room temperature falls. Operate the ignition device so that the point goes up,
The optimum temperature of the carburetor at the start of combustion is obtained.

<Embodiment> The present invention will be described below with reference to the drawings of the embodiment.

Reference numeral 1 is a vaporizer comprising a vaporization heater and a vaporization chamber of a petroleum hot air heater. The vaporizer 1 is connected to an electromagnetic pump 2 and a blower 3 for combustion, and a combustion part of the vaporizer 1 having a vaporization heater 4 built therein. A flame detection sensor 5 and a vaporizer temperature detection sensor 7 in the vaporization chamber 6 above the vaporizer temperature sensor 7,
The ignition device 8, the flame detection sensor 5, the electromagnetic pump 2, and the combustion blower 3 are connected to a control unit 9, and the control unit 9 is further connected.
A room temperature detection sensor 10 and an operation switch 11 are connected to the automatic ignition means.

Next, this operation will be described. First, the operation switch 11 is turned on to detect the room temperature by the room temperature detection sensor 10. That is, as shown in FIG. 2, the temperature is converted into a voltage by the room temperature detection sensor 10 such as a thermistor whose resistance decreases as the temperature rises, and this voltage is compared with the data stored in advance by the microcomputer 12 to start the combustion. Determine the vaporization temperature of. Further, the temperature detected by the vaporizer temperature detection sensor 7 of the vaporizer 1 is also converted into a voltage in the same manner as room temperature. The microcomputer 12 compares these temperatures, and the heater relay 13
And the ignition device 8 to control combustion. For example, as shown in the graph of FIG. 3, the temperature of the carburetor 1 at the start of combustion rises when the room temperature decreases, and the temperature of the carburetor 1 starts when the room temperature rises.

<Effects of the Invention> As described above, the oil warm air heater of the present invention has a carburetor temperature detection sensor at the carburetor position and a room temperature detection sensor at the control unit, and burns both of the temperatures in comparison with a predetermined value. Since the start point is set, when the room temperature is low, the temperature of the carburetor is sufficiently raised to obtain reliable ignition, white smoke is reduced, and when the room temperature is high, preheating of the extra heater can be stopped, and ignition can be performed. Practical effects such as reduction of time and power saving are achieved.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a system diagram of essential parts, FIG. 2 is an explanatory diagram showing the relationship between a room temperature detection sensor and a carburetor temperature detection sensor, and FIG. 3 is a combustion start temperature. It is a graph. 1 ... Vaporizer, 2 ... Electromagnetic pump, 3 ... Combustion blower, 6 ... Vaporization chamber, 7 ... Vaporizer temperature detection sensor, 8
...... Ignition device, 9 ...... Control unit, 10 ...... Room temperature detection sensor.

Claims (1)

[Scope of utility model registration request] 1. A room temperature detecting sensor and a carburetor temperature detecting sensor are connected to a controller of a carburetor having a carburetor, and the controller controls the temperature of the carburetor at the start of combustion.
Set a high value when the room temperature detected by the room temperature detection sensor is low, and set a low value when the room temperature detected by the room temperature detection sensor is high.Compare this set temperature with the detection temperature of the vaporizer temperature sensor and An oil hot air heater characterized by starting combustion when the temperature detected by the vessel temperature sensor reaches a set temperature.