Device for executing thermoelectric power generation through memory metal

A technology of memory metal and thermoelectric power generation, which is applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of no possibility of realization, no consideration of the implementation method of heating and cooling memory metal, and power consumption, etc., to achieve high plasticity and bending The effect of large amount and reduction of energy loss

Inactive Publication Date: 2019-06-18
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current memory metal power generation method mainly uses the stretching force generated by its cold and heat to convert through gears or levers to generate electricity, and

Method used

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  • Device for executing thermoelectric power generation through memory metal
  • Device for executing thermoelectric power generation through memory metal
  • Device for executing thermoelectric power generation through memory metal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 , figure 2 shown. At this time, the cooling source is gas such as cold air.

[0037]The blade made of memory metal has different deformations at high temperature and low temperature. The blade becomes contracted at low temperature and stretches at high temperature. The blade 26 in the shrinking state enters the hot water section 1 through the 3-elastic opening A, is heated by the hot water, and deforms into a memory stretching state, and its gradual stretching process is as blade 31, blade 32, blade 33, blade 34, blade 35, blade 36, During the process of stretching and deformation, the hot water produces a resistance much greater than that of the air, and the counteraction of this resistance relative to the blade becomes hydraulic force to push the blade to rotate around the central axis 101 . After turning to the state and position of the blade 36, continue to rotate to 4-the elastic opening B enters the cooling source area 2, the blade is cooled b...

Embodiment 2

[0039] Such as image 3 shown. At this time, the cooling source is gas such as cold air.

[0040] Considering that the heat transfer coefficient between hot water and memory metal blades is much greater than that between gas and memory metal blades, the space occupied by the heat source is reduced, and the heat exchange area of ​​cold air and the number of blades in cold air are increased. Proportion.

[0041] The deformation of the blade is bending and stretching, and the deformation process of the memory metal blade is short, so its force to push the hydraulic force is greater, and the power generation effect driven by the hydraulic reaction is better.

Embodiment 3

[0043] Such as Figure 4 , Figure 5 As shown, the cold source 2 is cold water or air, and the central axis is placed vertically.

[0044] The level change of the blade in the hot water heating process is the same as that in Embodiment 1 or Embodiment 2. The blade consists of two sections, including a fan-shaped shaft connected to the central axis and a deformable blade. Take one fan-shaped circumference 41 and blade 23 as an example for illustration. The fan-shaped shaft 41 can follow the rotation of the central shaft 101 and move up and down relatively. The support part at the lower part of the shaft is in rolling connection with the fan-shaped shaft at the upper part. When the blade 23 rotates to the interface between the cold and heat sources, it will move up and pass through the 3-elastic opening A and 4-elastic opening B away from the water surface to avoid mixing of cold and hot water. Or in hot water, cooling / heating deforms, and is driven by hydraulic power to gener...

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Abstract

The invention discloses a device for executing thermoelectric power generation through memory metal and belongs to the field of energy saving and environment protection based on small temperature difference and small and medium-sized new energy and waste-heat utilization. By adoption of the characteristics that the memory metal is large in bending amount and high in plasticity, can recover the previous shape at a memory temperature or above and the like, hot water heat energy is converted into mechanical energy by means of hydraulic power pushing through extension and extraction of blades, then the mechanical energy is converted into electric energy, the kinetic energy link with the greatest energy losses is omitted and electric energy conversion efficiency is improved. By the aid of the device, the defects in the phase change and pressure change processes of traditional thermoelectric power generation are overcome, the problem of low heat efficiency happening due to the fact that deadsteam cannot be utilized in the traditional thermoelectric power generation process is avoided, and the strict requirements on the aspects of working media, scales, sealing and the like are also avoided. The device for executing thermoelectric power generation through the memory metal opens up a novel utilization approach for small-sized small temperature difference heat sources and a new thoughtis provided for development and utilization of solar energy, geothermal energy and medium-low-temperature waste heat.

Description

technical field [0001] The invention relates to the technical field of waste heat recovery, in particular to a device for thermoelectric power generation through memory metal. Background technique [0002] At present, the application fields of solar heat utilization are mainly water heaters, and the application fields of geothermal energy are mainly hot springs and heating. These application fields must basically be supplied on the user side, because the heat dissipation loss of hot water energy supply is too large for long-distance transmission, and it is difficult to completely match the supply and use of solar hot water and geothermal heat, especially when there are obvious differences in seasonal applications. For example, heating is only required in the heating season, and there is no demand in the rest of the time, so solar and geothermal heating cannot be used throughout the year, which greatly reduces the economy, product performance and life; the solar heat collecti...

Claims

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Application Information

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IPC IPC(8): F03G7/06F03B13/00H02K7/18
CPCY02E20/14
Inventor 王显龙马伟斌李华山姚远刘雨兵
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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