CN201504202U

CN201504202U - Industrial exhaust heat semiconductor thermoelectric generator using conduction oil as heat transfer medium

Info

Publication number: CN201504202U
Application number: CN2009202321552U
Authority: CN
Inventors: 周正
Original assignee: WUXI MINGHUITONG SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: WUXI MINGHUITONG SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2009-09-18
Filing date: 2009-09-18
Publication date: 2010-06-09
Anticipated expiration: 2019-09-18

Abstract

The utility model provides an industrial exhaust heat semiconductor thermoelectric generator using conduction oil as a heat transfer medium, which is characterized in that a heat exchanger is installed in the production process of producing industrial exhaust heat in enterprises, the conduction oil is used as the heat transfer medium for guiding out the exhaust heat produced in the production process through the heat exchanger, the conduction oil absorbing the exhaust heat enters the semiconductor thermoelectric generator to generate electricity by using Bezier effect of semiconductor material, wherein the semiconductor thermoelectric generator uses the conduction oil as a heat source, and cooling water as a cold source. The device has the following advantages: the structure of the heat exchanger can be designed flexibly according to the characteristics of exhaust heat in technological process; the exhaust heat is guided out conveniently; and the conduction oil using as the heat transfer medium has heat storage effect; therefore, the defects of the prior exhaust heat utilization device, such as long design period, large space, high investment and large temperature fluctuation of products carrying exhaust heat and the like are overcome.

Description

With the conduction oil is the industrial exhaust heat semiconductor temperature difference generator of heat transfer medium

Technical field

It is the industrial exhaust heat semiconductor temperature difference generator of heat transfer medium with the conduction oil that the utility model relates to a kind of, its heat exchanger is as heat transfer medium with conduction oil, be installed in the production link that produces waste heat in the industrial enterprise, conduction oil has absorbed behind the waste heat to enter in the semiconductor temperature difference generator as thermal source by heat exchanger and has generated electricity, and belongs to the industrial afterheat recovery applied technical field.

Background technology

China is power consumption big country, the industrial exhaust heat enormous amount, no matter be solid-state, gaseous state, that liquid state all has a large amount of industrial exhaust heats to have is to be recycled, thereby these waste heats in the enterprise production process recycled for energy efficiency very large society, economic benefit are arranged.Be not suitable for installing large-scale heat recovery equipment in some production technology, some carries the product of waste heat, and then temperature fluctuation is bigger, heat exchanger in this device then can be according to the characteristics and the place situation flexible design of production technology and waste heat, conduction oil has the effect of accumulation of heat concurrently, waste heat is drawn the back semiconductor temperature difference generator flexible arrangement of also can suiting measures to local conditions, overcome waste heat recovery apparatus design in the past complicated, take up an area of shortcomings such as big, that investment is high, the waste heat supply temperature fluctuation is big.

Summary of the invention

It is the industrial exhaust heat semiconductor temperature difference generator of heat transfer medium with the conduction oil that the utility model provides a kind of, the industrial exhaust heat that is intended to utilize enterprise production process to produce generates electricity, heat exchanger among the present invention can be according to the characteristics flexible arrangement of industrial exhaust heat, be used again after waste heat drawn, it is big to have solved the fluctuation of the heat recovery equipment of can't installing in some production process, waste heat supply temperature, makes the irretrievable problem of waste heat.

Technical solution of the present utility model: it is characterized in that comprising heat exchanger, oil transfer pump, oil storage tank, thermostat, semiconductor temperature difference generator, wherein heat exchanger is installed in the link that produces industrial exhaust heat, the conduction oil output of oil transfer pump and the conduction oil input of semiconductor temperature difference generator join, the conduction oil output of semiconductor temperature difference generator and the conduction oil input of heat exchanger join, absorbed the conduction oil behind the waste heat and inserted oil storage tank, be connected in series thermostat between oil storage tank and oil transfer pump by the conduction oil output in the heat exchanger.

The beneficial effects of the utility model are, used after the present invention, heat exchanger can design flexibly according to form, characteristics and the equipment of waste heat in the enterprise production process and place situation etc., do not influence original production technology or influence very little, conduction oil enters semiconductor temperature difference generator after waste heat is extracted, and by semiconductor temperature difference generator the thermal power transfer that conduction oil carries is become electric energy.

Description of drawings

Accompanying drawing 1 is that system of the present utility model forms schematic diagram;

Accompanying drawing 2 is structure principle charts of semiconductor temperature difference generator.

Among the figure 1 is heat exchanger; The 2nd, semiconductor temperature difference generator; The 3rd, oil storage tank, the 4th, thermostat; The 5th, oil transfer pump; The 6th, heat conducting oil pipe; The 7th, cooling water pipe; The 8th, the semiconductor temperature differential generating chip.

Embodiment

Contrast accompanying drawing 1, its structure comprises heat exchanger 1, oil transfer pump 5, oil storage tank 3, thermostat 4, semiconductor temperature difference generator 2, wherein heat exchanger is installed in the link that produces industrial exhaust heat, oil transfer pump 5 is sent into conduction oil in the heat exchanger 1 through semiconductor temperature difference generator 2, conduction oil returns generating in the semiconductor temperature difference generator 2, so circulation again through oil storage tank 3 after having absorbed waste heat; The temperature of conduction oil can be controlled by thermostat and oil transfer pump, when the temperature of conduction oil is high, thermostat sends instruction to oil transfer pump, oil transfer pump increases the conduction oil flow of carrying, the conduction oil flow of heat exchanger 1 of flowing through increases, and temperature will descend, and vice versa, be the effect that oil storage tank 3 has played accumulation of heat and balance conduction oil temperature, make the temperature difference in the semiconductor temperature difference generator 2 keep constant; Heat conducting oil pipe and semiconductor temperature differential generating chip, cooling water pipeline are alternately in semiconductor temperature difference generator, the heat conducting oil pipe wall is close in the hot junction of semiconductor temperature differential generating chip, cold junction is close to the cooling water pipeline wall, both ends of the surface one end of semiconductor temperature differential generating chip is heated, one end is cooled, between both ends of the surface, just produced a bigger temperature difference, because the Bezier effect of semi-conducting material, the temperature difference is converted to electrical potential difference, this electrical potential difference is drawn, use through promptly can be used as power supply behind conversion, the rectification circuit.

Described heat exchanger 1 can be according to the characteristics and the place situation flexible design of waste heat in the production technology.

Contrast accompanying drawing 2, its structure is that semiconductor temperature differential generating chip 8 is installed in the both sides of cooling water pipe 7, make the cold junction of semiconductor temperature differential generating chip be close to cooling water pipe 7 two side walls, heat conducting oil pipe 6 walls then are close in semiconductor temperature differential generating chip 8 opposite side hot junctions, cooling water pipe 7, semiconductor temperature differential generating chip 8 and heat conducting oil pipe 6 are alternately, the conduction oil of heat exchanger output flows through heat conducting oil pipe 6, and heat is passed to semiconductor temperature differential generating chip hot junction by tube wall; Cooling water flow supercooling water pipe 7 reduces semiconductor temperature differential generating chip cold junction temperature by the tube wall heat exchange.

Semiconductor temperature difference generator, the conduction oil that adopts heat exchanger output is as thermal source, adopt cooling water as low-temperature receiver, core component is the semiconductor temperature differential generating chip, Cooling and Heat Source formation temperature between the cold and hot end face of semiconductor temperature differential generating chip is poor, is directly changed into electrical potential difference by the Bezier effect of semi-conducting material; Wherein cooling water is carried by water pump.

Described semiconductor temperature differential generating chip is the core of semiconductor thermo-electric generation apparatus, its electricity generating principle is based on the Bezier effect, in P (N) N-type semiconductor N, the hole of temperature end (electronics) concentration ratio low-temperature end is big, under the driving of this concentration gradient, hole (electronics) can be spread to low-temperature end from temperature end, thereby form a kind of electrical potential difference owing to the thermal diffusion effect.The hot junction of P type and N type semiconductor is linked to each other, then can obtain a voltage at cold junction, such PN junction just can utilize the temperature difference between high temperature heat source and the low-temperature heat source directly to change heat energy into electric energy.

Temperature difference makes each to producing electrical potential difference in the PN junction, will be much to being together in series, just can obtain sufficiently high voltage, and become a thermal generator.

Described oil storage tank 3, its effect is to store conduction oil, play the effect of accumulation of heat simultaneously, when the temperature fluctuation of industrial exhaust heat, thermostat can be controlled oil transfer pump changes conduction oil according to the conduction oil temperature that flows out oil storage tank flow, make the conduction oil temperature keep stable, thereby make that the temperature difference in the semiconductor temperature difference generator 2 is constant substantially, keep the stable of generated output.

Described thermostat 4 is existing standardized product.

Claims

1. with the conduction oil industrial exhaust heat semiconductor temperature difference generator of heat transfer medium, it is characterized in that comprising heat exchanger, oil transfer pump, oil storage tank, thermostat, semiconductor temperature difference generator, wherein heat exchanger is installed in the link that produces industrial exhaust heat, the conduction oil output of oil transfer pump and the conduction oil input of semiconductor temperature difference generator join, the conduction oil output of semiconductor temperature difference generator and the conduction oil input of heat exchanger join, absorbed the conduction oil behind the waste heat and inserted oil storage tank, be connected in series thermostat between oil storage tank and oil transfer pump by the conduction oil output in the heat exchanger.

2. according to claim 1 is the industrial exhaust heat semiconductor temperature difference generator of heat transfer medium with the conduction oil, it is characterized in that the semiconductor temperature differential generating chip in the described semiconductor temperature difference generator is installed in the both sides of cooling water pipe, make a side cold junction of semiconductor temperature differential generating chip be close to the cooling water tube wall, the heat conducting oil pipe wall then is close in the opposite side hot junction of semiconductor temperature differential generating chip, and promptly cooling water pipe and semiconductor temperature differential generating chip, heat conducting oil pipe are alternately.