JPS6084979A - Generating module - Google Patents

Abstract

PURPOSE:To enhance the generating efficiency by winding and containing a thermoelectric converter in a cylindrical gap, thereby increasing the heat receiving area. CONSTITUTION:The ends of a cylinder 4 which is maintained at low temperature near a low temperature passage 1 and a cylinder 5 which is maintained at high temperature near a high temperature passage 2 are engaged at the cylindrical gap 7. A thermoelectric converter 8 is contained by winding in the gap 7, the inner periphery of the converter 8 is contacted with the cylinder 4, and the outer peripheral surface is contacted with the cylinder 5. The inner and outer peripheral surfaces of the converter 8 are effectively contacted with the cylinders 4, 5 in wide areas, thereby leading DC power from lead wirings 9.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power generation module having a thermoelectric conversion element (Peltier element) all around the circumference.

When two types of thermoelectric elements, p-type and n-type, are connected thermally in parallel 1] and electrically in series, and a temperature difference is applied to the p7L junction (support) 1, the Seebeck effect causes a An electromotive force is generated when a load is connected to the outside of the heel, and a current flows, thus generating thermal energy.
"+ 1 -y KO5 IRW OUT - F1 口 中 とと > 3-b-+A is well known.

Conventionally, thermoelectric conversion elements are used in an extended state, so the heat receiving area is small, and the power generation efficiency is extremely low.

Therefore, in order to widen the heat receiving surface S and increase power generation efficiency, the present invention maintains a cylindrical gap between one end of the cylinder facing the low temperature flow path and the other end of the cylinder facing the high temperature flow path. Once fitted, the thermoelectric conversion element is wound and stored in the cylindrical gap, and the outer peripheral surface of the thermoelectric conversion element is brought into contact with one cylinder and the inner peripheral surface of the thermoelectric conversion element is contacted with the other cylinder to generate electricity. The present invention is characterized in that it is a module, and the present invention will be described below with reference to the drawings.

/ is a low-temperature channel through which water and other low-temperature fluids flow, ko is a high-temperature channel through which flue gas and other low-temperature fluids flow, 3 is both channels / and 2f.
t indicates a partition wall. The fluid flowing through each channel/λ may be a liquid or a gas.

In this embodiment, one end of the cylindrical body L installed in the low-temperature flow path protrudes into the high-temperature flow path through a hole formed in the partition wall 3, and is opposed to the segment L in the high-temperature flow path. It is fitted into a blind hole 6 formed at one end of another cylindrical body installed with a cylindrical gap 7 maintained therebetween.

And this cylindrical gap iWj? Inside, a band-shaped T53 flexible thermoelectric conversion element g is wound around the turn at one end of the cylindrical body. , the outer peripheral surface of the element is in contact with the inner peripheral surface of the blind hole 6 of the cylindrical body 5. Note that ri indicates an IJ-domain for taking out DC power from both ends of the element.

If necessary, fins are provided on the outer periphery of the low-temperature flow path/inside portion of the cylinder 5 and the outer periphery of the cylinder 5 located in the high-temperature flow path to increase heat transfer efficiency. ;' may be set. Also, cylinder +
, 5 are made of metal, and are hollow in this case, and are each filled with a so-called heat pipe whose inside is evacuated and the working fluid is sealed, but of course, a hollow cylindrical body other than a heat pipe may also be used. Alternatively, it may be a central cylindrical body.

In this way, in the present invention, the cylindrical gap 7 is formed between the ends of the cylindrical body q that faces into the low-temperature flow path and is maintained at a low temperature, and the end portions of the cylindrical body S that faces into the high-temperature flow path and is maintained at a high temperature. The thermoelectric conversion element (g) is housed by winding the thermoelectric conversion element (g) into the cylindrical gap that is fitted into the cylinder, with the inner circumferential surface of the element in contact with the cylindrical body (Hiro) and the outer circumferential surface of the element in contact with the cylindrical body (S). Therefore, both the inner circumference and outer circumference of the element have a wide area, and each cylindrical body group, S
The power generation efficiency of the DC power that is extracted from the lead wire is extremely high.

In this example, one end of the cylindrical body S installed in the low-temperature flow path was inserted into the high-temperature flow path and fitted into the blind hole 6 of the cylindrical body S installed in the high-temperature flow path. Alternatively, one end of a blunt body placed in the high temperature flow path may be inserted into the low temperature flow path and fitted into a blind hole at one end of the cylindrical body placed in the low temperature flow path.

To actually generate electricity, a large number of modules are used in a forest as shown in FIG.

In this embodiment, the low-temperature flow path 1 and the high-temperature flow path 1 are separated by the partition wall 3, but an interval may be maintained between the two flow paths. The portion where one cylinder crosses the gap between the flow paths and enters the other flow path may be surrounded by a heat insulating material. Further, the cylinder body does not have to be cylindrical, but may be polygonal.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional side view showing an embodiment of the power generation module of the present invention, Fig. 2 is an enlarged sectional view taken along the line ■-■ in Fig. 1, and Fig. 6 is an explanation of the power generation state. In the figure, / indicates a low-temperature flow path, C indicates a high-temperature flow path, Rito 5 indicates a cylinder, 7 indicates a cylindrical gap, and Z indicates a thermoelectric conversion element. Patent applicant: Showa Aluminum Co., Ltd. Agent: Patent attorney Fuku 1) To:

Claims (1)

[Claims] The cylindrical body facing the low-temperature flow path and the cylindrical body facing the high-temperature flow path are fitted to each other while maintaining the entire cylindrical gap, Qj, and the thermoelectric conversion element is inserted into the cylindrical IG1iJ1. A power generation module, which is wound and stored, and is characterized in that the outer side of the thermoelectric conversion element is brought into contact with one cylindrical body, and the inner peripheral surface is brought into contact with the other cylindrical body.