KR101875213B1 - Electric generator running on low-temperature differentials by exploiting physical characteristics of Gadolinium - Google Patents

Electric generator running on low-temperature differentials by exploiting physical characteristics of Gadolinium Download PDF

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Publication number
KR101875213B1
KR101875213B1 KR1020170171503A KR20170171503A KR101875213B1 KR 101875213 B1 KR101875213 B1 KR 101875213B1 KR 1020170171503 A KR1020170171503 A KR 1020170171503A KR 20170171503 A KR20170171503 A KR 20170171503A KR 101875213 B1 KR101875213 B1 KR 101875213B1
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South Korea
Prior art keywords
gadolinium
generator
converter
power
coupling ring
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KR1020170171503A
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Korean (ko)
Inventor
천원기
이윤준
김남진
김영민
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제주대학교 산학협력단
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H02N11/002—Generators

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Abstract

The present invention relates to a low temperature difference generator using the characteristics of gadolinium. According to the present invention, power generation is basically performed by using the low temperature difference characteristics of gadolinium. A TENG generator interlocked by a gadolinium converter improves output conversion efficiency (to improve conversion efficiency when converting a mechanical output into an electrical output) throughout a system according to power generation. A power generation rotator (including a magnet for generating power) for generating power with an AC generator is formed to be detachable from a connection shaft connected to a gadolinium converter by a screw coupling method (separation of a converter and a power generator is easy). Therefore, a power generation design change and a variable setting are easy.

Description

[0001] The present invention relates to a low-temperature differential generator using gadolinium,

The present invention is based on the fact that power generation is performed using the low temperature difference variable characteristic of gadolinium, and the TENG generator linked by the gadolinium converter converts the output conversion efficiency (mechanical output to electrical output (Including magnets for electric power production) for generating electric power together with the AC generator are formed so as to be detachably attached to the connection shaft connected to the gadolinium converter by a screw fastening method The present invention relates to a low temperature difference generator using characteristics of gadolinium, which is characterized in that power generation design change and variable setting are easy.

In general, the Curie temperature of gadolinium to be used as the ferromagnetic material is 19 DEG C and the Curie temperature of the iron to be used as the permanent magnet material is 770 DEG C. [

The magnetism of the ferromagnet and the permanent magnet maintains the ferromagnetic state at a temperature lower than the respective Curie temperature, and at the Curie temperature or higher, it becomes a paramagnetic body and all the magnetism is lost.

When a magnetic field is applied to a magnetic working material, the magnetic working material is heated and the temperature rises. When the magnetic field is removed, a magnetic calorie effect is obtained in which the temperature is lowered by absorbing heat.

When an external magnetic field is applied to a ferromagnetic material having a Curie temperature higher than the Curie temperature and a Curie temperature is high, the ferromagnetic material becomes a ferromagnetic material having a magnetization several thousands times larger than that of the permanent magnet.

When the magnitude of the magnetic field acting on the cylindrical coil is changed by causing the ambient temperature of the ferromagnetic body to rise and fall repeatedly, current flows according to Fleming's right-hand rule.

As described above, gadolinium can be implemented in a power generation system using low temperature difference characteristics. However, in the related art, the construction of a generator using gadolinium is complicated or expensive, and the efficiency of optimizing high temperature and low temperature characteristics is low It is true.

On the other hand, conventionally, generators using magnetic materials have been published by various prior art publications, and these prior art documents are based on the examples 1, 2, 3, 4, 5, / Comparative Invention 2: Open Patent Publication No. 10-2010-0026174 (March 10, 2010).

In more detail, the prior arts 1, 2, 3, 4, 5, 6, 7, 8, 9, However, in the case of the comparative invention 1, the magnetism is weakened by the hot water 9 having a Curie temperature higher than the Curie temperature in the high temperature portion, and the cold water 18 having a Curie temperature lower than the Curie temperature in the low temperature chamber after rotation, And the thermally sensitive magnetic body 13 is precooled at the portion where it enters the cold water layer 16a and then the hot water layer 16b , It has some similar aspects to the solution of the present invention, The name 1 is a structure in which the cold water 18 is cooled over half of the rotating body 15 in order to facilitate the simple cooling.

This constitutes a different configuration from the present invention, which is a specific object to be solved (providing a low temperature difference generator using the magnetic characteristics of gadolinium while repeatedly circulating the heating-> pre-cooling-> cooling-> heating-> precooling cycle).

In addition, while Comparative Example 2 relates to a generator using a characteristic in which the magnetism of the ferromagnetic body changes at Curie temperature, Comparative Example 2 performs power generation by using the ambient temperature, that is, the indirect convection temperature. The power generation performance is remarkably lowered.

1. JP-A-01-232174 (September 18, 1989) 2. Description of the Related Art [0002] Published Patent Application No. 10-2010-0026174 (Mar. 10, 2010)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is a technical object of the present invention to provide a TENG generator, which is based on the production of electric power using the low temperature difference variable characteristic of gadolinium, (Including magnets for power generation) that are formed to improve the output conversion efficiency (to improve the conversion efficiency when converting the mechanical output to the electrical output) with respect to the AC generator and to the power generator with the AC generator are connected to the gadolinium converter The present invention provides a low temperature difference generator using gadolinium which is characterized in that it is detachably attached to a connection shaft by a screw fastening method (facilitating separation of a converter and a generator), thereby facilitating power generation design change and variable setting.

Further, in the TENG generator part of the present invention, the aluminum plate, which is the stator side, is coupled to the upper surface of the coupling ring, and the coupling ring is formed on the coupling bushing so as to enable fine adjustment of the height by the lower side fine adjustment nut, The present invention has been made to solve the above problems.

It is another object of the present invention to provide a magnetic induction magnet which is coupled to one side of a gadolinium converter so that the magnet holder can be easily replaced and replaced, thereby facilitating the use of the magnetic induction device according to requirements such as magnetic force intensity.

In addition, in the present invention, a box-shaped shielding box is provided so as to cover the transforming portion with respect to the lower side of the connecting bushing so as to achieve complete shielding with the upper power generation portion. So that a driving error and an efficiency loss do not occur at the time of operation.

In addition, the present invention utilizes the characteristic of gadolinium (Gd) which exhibits strong magnetism when temperature is low (below about 20 ° C) and weak magnetic property when temperature is high (above about 30 ° C) It is possible to utilize the energy as a source of energy or to diversify the energy source such as solar heat in addition to the waste heat source of the power plant or the air-conditioning facility, thereby improving the application and application of the system. The purpose of this

The gadolinium converter 120 is rotated by the bearing 130 on the upper surface of the bottom plate 110. A plurality of gadolinium blocks 140 are formed on the circumferential surface of the gadolinium converter 120 When the cold water or hot water having a temperature set by the cold water supply path G1 and the hot water supply path G2 provided on one side of the gadolinium block 140 directly flows on the surface of the gadolinium block 140, A conversion unit 100 for causing the one-side rotation induction magnet 150 to rotate in the circumferential direction while the gadolinium conversion is repeated; And a connection shaft 210 to be axially coupled to the upper end of the gadolinium converter 120. The power generating body 220 is assembled on the upper side of the connecting shaft 210 in a screwing manner, (220) is formed to generate power with the AC generator (240) by means of a magnet body (230) for electric power production which is inserted into the upper side receptacle at the time of rotation. On the bottom surface of the receiving cylinder (221) The acrylic plate 251 which is a rotor of the TENG generator 250 is formed to rotate by being coupled to the fixing flange 222 formed on the lower surface of the receiving cylinder 221, The aluminum plate 252 is fixed to the upper surface of the coupling ring 270 assembled with the connection bushing 260 so that the TENG generator can generate power for improving the conversion efficiency when converting the mechanical output to the electrical output. (200); .

When the coupling bushing 260 is assembled with the coupling ring 270, the insertion groove 271 of the coupling ring is engaged with the protrusion 261 of the coupling bushing. A fine adjustment nut 280 is provided to adjust the degree of close contact between the acrylic plate 251 and the aluminum plate 252 spaced apart from each other.

The connection shaft 210 is formed with a female screw groove 211 on an upper side thereof and the power rotation body 220 is formed with a male screw bolt 223 on the lower side to be screwed while corresponding to the female screw groove.

As described above, the present invention is based on the fact that the power generation is performed using the low temperature difference variable characteristic of gadolinium, and the TENG generator interlocked by the gadolinium converter converts output conversion efficiency (mechanical output to electrical output And the power generator (including the magnet for power generation) that generates electric power together with the AC generator is formed to be detachably attached to the connection shaft connected to the gadolinium converter by a screw fastening method It is easy to separate the converter and the generator), so that it is easy to change the power production design and to set the variable.

Further, in the TENG generator part of the present invention, the aluminum plate, which is the stator side, is coupled to the upper surface of the coupling ring, and the coupling ring is formed on the coupling bushing so as to enable fine adjustment of the height by the lower side fine adjustment nut, And the output condition can be maintained or adjusted to the highest level.

Meanwhile, the present invention facilitates the exchange of the magnet holder with respect to the rotation induction magnet coupled to one side of the gadolinium converter, thereby facilitating the use of the magnet holder according to requirements such as magnetic force intensity.

In addition, in the present invention, a box-shaped shielding box is provided so as to cover the transforming portion with respect to the lower side of the connecting bushing so as to achieve complete shielding with the upper power generation portion. The magnetic field is formed so as to be shielded from each other, thereby preventing a drive error or an efficiency loss from occurring during operation.

In addition, the present invention utilizes the characteristic of gadolinium (Gd) which exhibits strong magnetism when temperature is low (below about 20 ° C) and weak magnetic property when temperature is high (above about 30 ° C) It is possible to utilize the energy as a source of energy or to diversify the energy source such as solar heat in addition to the waste heat source of the power plant or the air-conditioning facility, thereby improving the application and application of the system. .

1 is an assembled perspective view of a generator using gadolinium according to the present invention,
2 is a sectional view of one side of a generator using gadolinium according to the present invention,
3 is an exploded perspective view of Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.

First, as shown in FIGS. 1 to 3, the present invention is largely composed of a conversion unit 100 and a power generation unit 200.

The conversion unit 100 may be configured such that the Gadolinium converter 120 is rotated by the bearing 130 on the upper surface of the bottom plate 110 and a plurality of gadolinium blocks 140 are formed on the circumferential surface of the Gadolinium converter 120 .

At this time, when the cold water or hot water having a predetermined temperature is directly contacted to the surface of the gadolinium block 140 by the cold water supply path G1 and the hot water supply path G2 provided at one side, The gadolinium converter 120 is formed so as to rotate in the circumferential direction.

The bottom plate has a water supply hole 111 formed at a side surface thereof and a drain hole 112 having a drain hole formed at an upper surface thereof.

That is, the bottom plate is a flat plate made of metal or synthetic resin and has a predetermined thickness, and a drain groove is formed in the upper surface of the drain hole. At least one through hole is formed in the bottom surface of the drain groove to form a drain hole, And when the hot water is introduced, it is formed so as to form a circulation cycle while discharging it to the outside.

At this time, a circulation line connecting pipe such as a tube or a hose is provided at an end of the drain hole, and the drain hole is formed so as to flow or drain circulate water directly to the gadolinium block.

The gadolinium converter having a plurality of gadolinium blocks is formed as a kind of top. The protrusions formed at the bottom are fixed to bearings formed on the bottom plate, and are formed so as to rotate in the circumferential direction of the gadolinium converter. As shown in FIG.

At this time, the gadolinium block is a block having a width, height, height of about 1 cm * 1 cm * 1 cm, and a plurality of the gadolinium blocks are arranged on the circumferential outer circumferential surface of the rotating plate at regular intervals while being fixedly coupled. And the lower end and the outer periphery are exposed, so that the cold water and the hot water are wetted by direct contact when they are supplied.

At this time, the rotation induction magnet is coupled to one side of the hot water supply path G2 while the cold water supply path G1 is formed to be disposed on a circumferential line partly spaced apart from the rotation induction magnet.

That is, the gadolinium block is formed to continuously induce the circumferential rotation of the Gadolinium converter by causing cold water and hot water to stick to each other or to be separated from each other by the rotation induction magnet when the magnetism is varied by a low temperature difference.

Meanwhile, when the rotation induction magnet is coupled to one side of the gadolinium converter, the magnet holder 160 can be easily exchanged for replacement, and is formed so as to be convenient for use (ease of use) according to requirements such as magnetic force intensity.

In addition, the gadolinium block is formed such that a cold water supply path (G1: about 20 DEG C or less) is formed on one side of the hot water supply path (G2: about 40 DEG C or higher) (About 23 deg. C) is formed to preheat the high temperature characteristics and to improve the temperature sensing efficiency of the cold water supply path in the low temperature section.

That is, the second cold water supply passage is a section for precooling the gadolinium block which has been magnetically demagnetized by high-temperature characteristics for rapid magnetism returning. It is preferable to let the water flow at 23 占 폚 flow.

For example, when cold water (about 5 ° C) is flowed in Gd (1), Gd (1) becomes stronger than Gd (2) and is rotated in the red arrow direction by the right magnet.

Gd (2) is weaker than Gd (1) when hot water (about 65 ° C) flows in Gd (2) and Gd (1) interferes with the force . Therefore, it rotates in the red arrow direction.

The power generating unit 200 is provided with a connection shaft 210 that is axially coupled to the upper end of the Gadolinium converter 120. The power generating unit 220 is screwed on the connection shaft 210 Assembled.

At this time, the power generation rotating body 220 is formed to generate electric power with the AC generator 240 by the electric power producing magnet body 230 that is inserted into the upper side receiving cylinder at the time of rotation.

The TENG generator 250 is formed on the bottom of the receiving cylinder 221 of the power generating rotating body 220. The acrylic plate 251 as a rotor of the TENG generator 250 is formed on the bottom surface of the receiving cylinder 221 Is coupled to the fixed flange 222 and is formed to rotate.

The aluminum plate 252, which is a stator of the TENG generator 250, is fixedly coupled to the upper surface of the coupling ring 270 assembled to the connection bushing 260 to convert TENG power to mechanical output, Thereby increasing the efficiency.

In other words, such a TENG generator has a problem in that the output of the existing gadolinium generator is low and the power generation is insufficient (in milliwatts). The TENG generator converts the thermal energy into mechanical energy and finally the electric energy, It is to increase.

At this time, the coupling ring is formed on one side of the upper surface so as to form a groove for wire connection cut out toward the outside, so that the electric output is transmitted.

This is to ensure that the aluminum plate attached to the upper surface of the coupling ring is brought into flat contact with the joining ring so that the electric production can be evenly secured.

When the coupling bushing 260 is assembled with the coupling ring 270, the insertion groove 271 of the coupling ring is engaged with the protrusion 261 of the coupling bushing. A fine adjustment nut 280 is provided to adjust the degree of close contact between the acrylic plate 251 and the aluminum plate 252 spaced apart from each other.

The connection shaft 210 is formed with a female screw groove 211 on an upper side thereof and the power rotation body 220 is formed with a male screw bolt 223 on the lower side to be screwed while corresponding to the female screw groove.

The power generator magnet 230 and the AC generator 240 are used to generate electric power. When the power generator 200 is used as a power storage or a power source, a separate wire assembly is connected to supply power to a desired use place. .

Further, in the TENG generator part of the present invention, the aluminum plate, which is the stator side, is coupled to the upper surface of the coupling ring, and the coupling ring is formed on the coupling bushing so as to enable fine adjustment of the height by the lower side fine adjustment nut, And the output condition can be maintained or adjusted to the highest level.

That is, when the connection shaft is rotated by the rotation of the Gadolinium converter, and the power generating rotating body rotates at the same time, the power generating magnet and the acrylic plate form a rotor like shape, .

At this time, the AC generator is coupled to the cap cover 400 to be fixed, and is formed to produce electricity according to the rotation of the magnet for power generation.

For reference, the principle of the TENG generator is that an output is generated by friction between an acrylic plate and an aluminum plate rotating at a lower portion thereof, and a higher output is generated as the acrylic plate and the aluminum plate are closer to each other.

In order to ensure such precision, a fine adjustment nut (inner peripheral surface formed with a female screw) is provided. The fine adjustment nut is screwed to the upper projection (male screw formation on the outer peripheral surface) of the connection bushing, So that the degree of spacing can be set with respect to the acrylic plate as the upper rotator.

At this time, the aluminum plate is formed with male screw acid on the outer circumferential surface, and the inner surface of the step groove of the engaging ring is formed with a female screw, so that the aluminum plate is engaged with the upper surface of the engaging ring.

In addition, in the present invention, a box-shaped shield box 300 is provided so as to cover the transforming portion with respect to the lower side of the connecting bushing so as to achieve complete shielding with the upper power generation portion, The magnetic bodies for production are formed so as to shield the magnetic fields of each other so that no drive error or efficiency loss occurs during operation.

At this time, the shielding box is formed of a steel plate having a thickness of about 2 to 2.5 mm, and is formed to be connected (or tightly assembled) to the bottom plate to surround the conversion section including the gadolinium converter in the form of an open bottom.

A through hole is formed in the closed upper surface of the shield box so that a part of the axis of the connection shaft passes through the through hole to be coupled with the upper generator.

That is, in the present invention, the role of the rotation induction magnet and the magnet body for power generation is different from each other. The Gadolinium converter equipped with Gadolinium (Gd) is for promoting the rotation, and the magnet body for power production These two components can interfere with each other due to the magnetic field during rotation. This causes a decrease in efficiency. To prevent this, a magnetic field shield, that is, a shield is provided.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

100 ... conversion unit 110 ... base plate
120 ... gadolinium converter 130 ... bearing
140 ... gadolinium block 150 ... rotation induction magnet
160 ... magnetic holder
200 ... power generation section 210 ... connection shaft
220 ... power generation rotating body 221 ... receiving cylinder
222 ... Fixed flange 223 ... Male thread bolt
230 ... Magnetic body for power generation 240 ... AC generator
250 ... TENG generator 251 ... acrylic plate
252 ... aluminum plate 260 ... connection bushing
261 ... protrusion 270 ... engaging ring
271 ... insertion groove 280 ... fine adjustment nut
300 ... shielding 400 ... cap cover

Claims (3)

A plurality of gadolinium blocks 140 are coupled to the circumferential surface of the gadolinium converter 120 so that the gadolinium converter 120 is rotated on the upper surface of the gadolinium block 140 When the cold water or hot water having a temperature set by the cold water supply path G1 and the hot water supply path G2 provided on one side is directly contacted to the surface, weakness and ferromagnetism are repeated due to low temperature difference variable characteristics, (150) to cause the gadolinium converter (120) to rotate in the circumferential direction; And a connection shaft 210 to be axially coupled to the upper end of the gadolinium converter 120. The power generating body 220 is assembled on the upper side of the connecting shaft 210 in a screwing manner, (220) is formed to generate power with the AC generator (240) by means of a magnet body (230) for electric power production which is inserted into the upper side receptacle at the time of rotation. On the bottom surface of the receiving cylinder (221) The acrylic plate 251 which is a rotor of the TENG generator 250 is formed to rotate by being coupled to the fixing flange 222 formed on the lower surface of the receiving cylinder 221, The aluminum plate 252 is fixed to the upper surface of the coupling ring 270 assembled with the connection bushing 260 so that the TENG generator can generate power for improving the conversion efficiency when converting the mechanical output to the electrical output. (200); The present invention relates to a low temperature difference generator using gadolinium,
The connection shaft 210 is formed with a female screw groove 211 on an upper side thereof and a male screw bolt 223 is formed on the lower side of the power generating rotary body 220 so as to be screwed while corresponding to the female screw groove, The bushing 260 is formed in such a manner that the insertion groove 271 of the coupling ring is engaged with the protrusion 261 of the coupling bushing when the coupling ring 270 is assembled with the coupling ring 270. At the lower portion of the coupling ring, And a fine adjustment nut (280) is provided to adjust the degree of close contact between the acrylic plate (251) and the aluminum plate (252).
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KR1020170171503A 2017-12-13 2017-12-13 Electric generator running on low-temperature differentials by exploiting physical characteristics of Gadolinium KR101875213B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101940145B1 (en) * 2018-10-30 2019-01-18 제주대학교 산학협력단 Power conversion system with rotating cylindrical triboelectric generator in harnessing low-temperature differentials
KR101940141B1 (en) * 2018-10-30 2019-01-18 제주대학교 산학협력단 Hybrid type power conversion system with materials showing a magnetocaloric effect(Gadolinium) in harnessing low-temperature differentials
KR101967184B1 (en) * 2018-10-30 2019-04-09 제주대학교 산학협력단 Hybrid type power conversion system with materials showing a magnetocaloric effect(Gadolinium) in harnessing low-temperature differentials

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Hengyu Guo 외, A Water-Proof Triboelectric-Electromagnetic Hybrid Generator for Energy Harvesting in Harsh Environments, Advanced Energy Materials, 2015, Online (2015.12.23.)*
김원식 외, 자기열량효과 물질을 이용한 저온도차 열변환발전 시스템의 성능 분석 연구, 신재생에너지 제13권 제2호 (통권 제52호), 2017.6, pp.44-49 (2017.06.)*

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101940145B1 (en) * 2018-10-30 2019-01-18 제주대학교 산학협력단 Power conversion system with rotating cylindrical triboelectric generator in harnessing low-temperature differentials
KR101940141B1 (en) * 2018-10-30 2019-01-18 제주대학교 산학협력단 Hybrid type power conversion system with materials showing a magnetocaloric effect(Gadolinium) in harnessing low-temperature differentials
KR101967184B1 (en) * 2018-10-30 2019-04-09 제주대학교 산학협력단 Hybrid type power conversion system with materials showing a magnetocaloric effect(Gadolinium) in harnessing low-temperature differentials
WO2020091161A1 (en) * 2018-10-30 2020-05-07 제주대학교 산학협력단 Gadolinium low-temperature differential generator interworking with cylinder-type rotating frictional electricity system
WO2020091160A1 (en) * 2018-10-30 2020-05-07 제주대학교 산학협력단 Hybrid type power generator using gadolinium and low temperature difference

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