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Cement concrete pavement energy conversion device and preparation method thereof

An energy conversion device and cement concrete technology, applied in the manufacture/processing of thermoelectric devices, electrical components, thermoelectric device node lead-out materials, etc., can solve the internal structure damage of cement concrete pavement, expensive thermoelectric components, and uncoordinated deformation and other issues, to achieve the effect of improving thermoelectric conversion capacity, low cost, and ensuring integrity

Active Publication Date: 2020-12-08
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength of thermoelectric elements made of such metals or semiconductors is quite different from that of cement concrete pavement, and the two cannot coordinate and deform under load, thus causing damage to the internal structure of cement concrete pavement
In addition, such thermoelectric elements are often expensive and difficult to produce on a large scale, and cannot be widely used in cement concrete pavement structures

Method used

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  • Cement concrete pavement energy conversion device and preparation method thereof
  • Cement concrete pavement energy conversion device and preparation method thereof
  • Cement concrete pavement energy conversion device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] refer to figure 1 and figure 2 , an energy conversion device for cement concrete pavement, comprising a conversion unit 1, the top and bottom of which are respectively provided with positive and negative electrodes. The conversion unit 1 adopts graphene-reinforced cement-based composite material. The graphene-reinforced cement-based composite material is added graphene as a thermoelectric component in the cement matrix, which has a significant thermoelectric effect.

[0033] Graphene reinforced cement-based composite material of the present invention can be prepared by the following method:

[0034] Add graphene to water and mechanically stir to form a suspension, and then ultrasonically disperse to obtain a uniformly dispersed graphene suspension for later use;

[0035] Add cement and water reducing agent to the graphene suspension in sequence, carry out gradient stirring to make it evenly stirred, and then shape it, and then make it through airtight maintenance.

...

Embodiment 2

[0045] On the basis of Embodiment 1, the outer surface of the conversion unit 1 is roll-coated with an epoxy resin sealing layer 4 to perform anti-seepage treatment on the energy conversion device.

Embodiment 3

[0047] refer to figure 1 and figure 2 , on the basis of Embodiment 1 or 2, the number of conversion units 1 is multiple, and the electrodes include a positive electrode conductive copper mesh 2.3, a negative electrode conductive copper mesh 2.2 and a Z-shaped conductive copper mesh 2.1, which can be placed on each conversion unit 1. The positive electrode conductive copper mesh 2.3 (or the negative electrode conductive copper mesh 2.2) and the negative electrode conductive copper mesh 2.2 (or the positive electrode conductive copper mesh 2.3) are arranged at the end, and the positive electrode conductive copper mesh of the adjacent conversion unit 1 is connected and conducted with the Z-shaped conductive copper mesh 2.1 2.3 (or negative electrode conductive copper mesh 2.2) and negative electrode conductive copper mesh 2.2 (or positive electrode conductive copper mesh 2.3), realize the series, parallel or series-parallel combination of multiple conversion units 1, and finally...

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Abstract

A cement concrete pavement energy conversion device disclosed by the invention is based on a graphene reinforced cement-based composite material, can convert heat energy into electric energy under theaction of temperature difference by utilizing the thermo-electric effect of the graphene reinforced cement-based composite material, and is suitable for energy collection and conversion of cement concrete pavements. The invention further provides a preparation method of the cement concrete pavement energy conversion device, the dried graphene-reinforced cement-based composite material is used forprocessing and preparing the conversion units, the upper surfaces and the lower surfaces of the conversion units are coated with the conductive silver paste, and the conductive copper nets are inserted into the conversion units to prepare the electrodes; the positive conductive copper net and the negative conductive copper net are connected with the positive electrode and the negative electrode of an external circuit, and the outer surface of the structure is coated with epoxy resin by a roller to finish a anti-seepage treatment. Heat energy in the cement pavement slab can be converted into electric energy, so that energy conversion of the cement concrete pavement is achieved, and the device has the advantages of being high in Seebeck coefficient, stable in thermo-electric performance, simple in preparation process, expandable in structure and coordinated with deformation of the cement pavement slab.

Description

technical field [0001] The invention belongs to the technical field of energy conversion, in particular to an energy conversion device for cement concrete pavement and a preparation method thereof. Background technique [0002] In most parts of our country, the highest temperature in summer can reach 35°C-40°C. Under the continuous heat radiation of the sun, the cement concrete pavement will absorb a large amount of heat energy, which will cause the temperature of the cement concrete pavement to rise sharply. not being used effectively. In addition, the thermal conductivity of cement concrete is low, which is a poor conductor of heat. A large amount of heat accumulated inside is not easy to release, and the internal high temperature lasts for a long time. It affects the quality and service life of the road surface, and endangers traffic safety. Therefore, it is very important to convert and collect the heat energy in the cement concrete pavement. [0003] Most existing ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B41/63H02N11/00H01L35/22H01L35/32H01L35/34C04B14/02H10N10/01H10N10/17H10N10/855
CPCC04B28/04C04B41/63C04B41/4853H02N11/002H10N10/855H10N10/01H10N10/17C04B14/024C04B2103/302
Inventor 魏亚崔一纬王亚琼沙爱民
Owner TSINGHUA UNIV
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