JPH0150199B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thermoelectric generating element device in which the thermoelectric generating element is heated with a gas burner or other burner.

Conventionally, as this type of device, for example,
As seen in No. 181058, the heating part at the tip of the thermoelectric power generation element is exposed from one side to the flame extending forward from the flame opening of the burner, and the heating part and the sink part at the root of the element are attached. There are known formulas that generate an electromotive force according to the temperature difference between
In this case, it is preferable to increase the heating source of the heating section to increase the temperature difference and therefore the electromotive force.

The purpose of the present invention is to obtain a device that meets such requirements, and the heating part of the tip of the thermoelectric generator is exposed to the flame extending from the flame port of the burner from one side. In an element in which an electromotive force is generated in accordance with the temperature difference between the heating part and a sink part at the root thereof, an electromotive force is placed between the flame and facing the heating part of the thermoelectric generating element. It comprises a red-hot body heated by a flame.

An example of implementing the present invention will be explained with reference to the attached drawings.

In the drawing, 1 indicates a burner such as a gas burner, 2 indicates a flame port on its upper surface, and 3 indicates a flame extending upward from the flame port 2. A thermoelectric generating element 4 is immersed in the flame 3 at a heating part 5 at the tip thereof. It is provided so as to face from the side and generates an electromotive force in accordance with the temperature difference between the heating part 5 and the sink part 6 at the root thereof,
Further, a ceramic plate or other incandescent body 7 is placed at a position facing the heating part 5 of the thermoelectric generating element 4 across the flame 3, so that the radiant heat generated by the red heat of the incandescent body 7 is transferred to the heating part 5. It was made to be affected by

To explain further, in the case shown in the figure, the burner 1 is of the type extending in the longitudinal direction of a pipe and provided with a plurality of flame ports 2 at appropriate intervals, as shown in FIG. A plurality of corresponding incandescent bodies 7 are prepared, and the incandescent bodies 7 are also substantially the same, or a plurality of incandescent bodies 7 are made into one continuous plate shape.

To explain its operation, each one of the elements 4 is as clearly shown in FIG. Furthermore, at this time, the incandescent body 7 is heated on the other side of the flame 3, becomes red hot, and generates radiant heat, which is transmitted to the heating part 5 on the other side as shown by the dotted line in the figure. The heating section 5 is heated from the side by both the flame 3 and the radiant heat from the incandescent body 7, resulting in a large temperature rise, and the temperature difference between it and the sink section 6 increases. , so the electromotive force is increased accordingly.

According to the inventor's experiments, the temperature of the heating section 4 was raised from 620°C in the conventional model to 715°C, while the temperature of the sink part 5 was increased from 130°C in the conventional model to 160°C. The temperature difference is 490℃
The electromotive force is increased from 555℃ to 555℃.
It was confirmed that the voltage increased from 0.260V to 0.285V.

Furthermore, during such an operation, the incandescent body 7 extends relatively longitudinally from below the heating section 5 to above the heating section 5 approximately along the flame 3, and its upper half particularly acts effectively, In other words, it has been confirmed through experiments that approximately the lower half can be removed as necessary, and that approximately the same results can be obtained by doing so.

In this way, according to the present invention, the heating part at the tip of the thermoelectric generating element is not only heated by the flame of the burner, but also heated by the incandescent body heated by the flame, which is different from the conventional method of heating only the flame. It is possible to obtain a large temperature rise compared to the case where the element is operated with high efficiency, and its structure is simple by simply adding an incandescent body, and it has the effects of being obtained at a relatively low cost.

[Brief explanation of drawings]

FIG. 1 is a side view of an example of the device of the present invention, and FIG. 2 is a plan view thereof. 1...burner, 2...flame mouth, 3...flame, 4...
Thermoelectric power generation element, 5... Heating part, 6... Sink part, 7
...Red-hot body.

Claims (1)

[Claims] 1. The heating part at the tip of the thermoelectric power generation element faces the flame extending from the flame opening of the burner from one side, and the temperature difference between the heating part and the sink part at the root of the element is adjusted. A thermoelectric power generation device that generates an electromotive force, and includes a red-hot body that is heated by the flame and becomes red-hot at a position facing the heating part of the thermoelectric power generation element, sandwiching the flame. Element device.