JP2006271163A - Temperature-difference power generation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a temperature-difference power generation system which can reuse unused high temperature heat energy from a high-temperature side system, such as high temperature tubing, a high-temperature duct and a high-temperature portion existing in various plants and various types of equipment, by directly converting these unused high temperature energies into electrical energy to efficiently and effectively realize energy saving countermeasures. <P>SOLUTION: The temperature difference power generating system is provided with a power generation device 13 which directly converts the heat energy caused by the temperature difference, between a high temperature side system 11 and a low temperature side system 14 into electrical energy, between the high-temperature side system 11 having heat energy and the low-temperature side system 14 lower in temperature than the high-temperature side system 11. The raw material density of components, equipped with the heat radiation function of the low temperature system 14, is maximized with respect to the power generation device 13, in the equipment equipped with a heat receiving function or a heat collecting function from the high-temperature side system 11, as well as radiation function to the low-temperature side system 14. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a temperature difference power generation system that uses high-temperature thermal energy of a high-temperature side system such as a high-temperature pipe, a high-temperature duct, or a high-temperature part to directly generate power by a temperature difference that occurs between the low-temperature side system.

In recent years, the energy consumption of mankind has accelerated unprecedentedly with the development of industry and science and technology. As a result, the problem of global warming due to a warming gas such as CO ₂ has emerged. In order to suppress CO ₂ generation as much as possible, the appearance of a power generation system that recovers unused high-temperature heat energy existing in various industries such as factories as electrical energy as much as possible is eagerly desired.

In industries with various power plants, chemical plants, steel plants, boiler facilities, and various production facilities used at high temperatures, various measures and measures have been implemented as environmental measures in order to contribute to the suppression of CO ₂ generation. Energy conservation measures are being promoted. Such energy saving measures promoted in various plants and various facilities often suppress power consumption in order to reduce power consumption. In particular, when high temperature conditions are indispensable or high temperature generation is essential in each process step, energy such as electric power consumed to satisfy the conditions must be finally discarded. For this reason, the energy saving effect has a limit, and the energy saving measures are not always sufficient.

Therefore, it is conceivable to reuse the thermal energy that is discarded without being used in various facilities having high-temperature thermal energy. As a technique, it is possible to change the thermal energy into kinetic energy and reuse it as electrical energy. It has been proposed (see, for example, Patent Document 1).
JP 2004-286024 A

  However, the above method converts thermal energy into kinetic energy, and requires a large-scale facility such as a turbine generator. That is, it was not intended to be recovered and reused directly from heat energy as electrical energy.

  The purpose of the present invention is to directly convert unused high-temperature heat energy from high-temperature systems such as high-temperature piping, high-temperature ducts or high-temperature parts existing in various plants and various facilities into electrical energy and reuse it. An object of the present invention is to provide a temperature difference power generation system capable of efficiently and effectively realizing energy saving measures.

  The temperature difference power generation system of the present invention electrically converts thermal energy between a high temperature side system having thermal energy and a low temperature side system having a lower temperature than the high temperature side system by a temperature difference between the high temperature side system and the low temperature side system. A temperature difference power generation system provided with a power generation device that directly converts to energy, and for the power generation device, among the device components having a heat receiving or heat collecting function from a high temperature side system and a heat radiation function of a low temperature side system, It is characterized in that the material density of the parts having the heat radiation function of the low temperature side system is maximized.

  In the present invention, high-temperature piping, a high-temperature duct, or a high-temperature part may be applied to the high-temperature side system, and a jig for transferring thermal energy may be installed between the outer surface of the high-temperature side system and the power generation device.

  The jig may have a shape and material having high adhesion to the surface of the high-temperature pipe, the high-temperature duct or the high-temperature part and the surface of the power generation device.

  Moreover, the said jig is contacting the high temperature piping, the high temperature duct or the high temperature site | part, and the outer surface of both of power generators in the state which can absorb a thermal expansion difference.

  In addition, the jig uses a material with high thermal conductivity and high thermal uniformity corresponding to the shape, surface roughness, and operating temperature of both the outer surface of the high-temperature pipe, high-temperature duct or high-temperature part and power generator, and receives heat. Or it is good to improve the ability of heat collection.

  Further, the jig has the lowest material density among the apparatus components having the heat receiving or collecting function from the high temperature side system and the heat radiation function of the low temperature side system with respect to the power generation device.

  Moreover, in this invention, it is good to install a heat insulating material in the surface part of the high temperature piping, high temperature duct, or high temperature site | part which is not in contact with a jig for heat dissipation suppression.

  Further, in the present invention, the device component having the heat receiving or collecting function from the high temperature side system and the heat radiation function of the low temperature side system is pressed against the power generation device from the outside of the component having the heat radiation function of the low temperature side system. It is recommended to install a part having a fixing function.

  The component having the fixing function may be configured such that fluid is included as the pressing means, and the pressing force can be adjusted by arbitrarily adjusting the pressure on the fluid.

  Further, in the present invention, a plurality of apparatus components having heat receiving or collecting function from the high temperature side system and heat radiation function of the low temperature side system are arranged in parallel to the high voltage side system and fixed to the power generator. The parts having the function may be configured so that a uniform pressing force can be maintained with respect to the apparatus component parts arranged in parallel.

  In addition, the component having the fixing function preferably has a configuration in which contact with the component having the heat radiation function of the low-temperature side system is a surface contact, and a uniform pressing force can be maintained with respect to the power generation device alone.

  In addition, the component having the fixing function preferably uses a gas or a liquid or a mixture of both as the inclusion fluid and has a function of adjusting the pressure from the inside or outside of the fluid.

  In addition, the component having the fixing function uses a gas or liquid or a mixture of both as the inclusion fluid, and distributes the fluid to the inside and outside of the component having the fixing function to provide a heat radiation function to the low temperature system. You may comprise so that it may bear.

  In addition, as the component having the fixing function, a material having elasticity suitable for a component material for enclosing a fluid may be used.

  Furthermore, in the present invention, the component having the fixing function is secured from the outside, and the pressing force by the component having the fixing function is applied to the power generation device from the high-temperature side system for receiving heat or collecting heat and the low-temperature side. It is advisable to install lashing parts that are effectively added to the component parts that have a function of radiating heat to the system.

  According to the present invention, between the high temperature side system having heat energy and the low temperature side system having a temperature lower than that of the high temperature side system, the thermal energy is directly converted into electric energy by the temperature difference between the high temperature side system and the low temperature side system. Since a power generation device for conversion is provided and the generated power is taken out from this power generation device, heat energy can be converted into electrical energy with high efficiency without causing loss of conversion to kinetic energy, etc.

  Hereinafter, an embodiment of a temperature difference power generation system according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic block diagram of the basic configuration of the temperature difference power generation system in this embodiment. The temperature difference power generation system 10 shown in this embodiment is a temperature difference utilization power generation apparatus that collects unused thermal energy from the high temperature side system 11 existing in various plants and various facilities to obtain electric energy. is there. That is, the temperature difference power generation system 10 has a temperature between the high temperature side system 11 and the low temperature side system 14 between the high temperature side system 11 having thermal energy and the low temperature side system 14 having a lower temperature than the high temperature side system 11. A power generation device 13 that directly converts thermal energy into electrical energy due to the difference is provided. In addition, it is good to provide the jig 12 for transmitting thermal energy between the high temperature side system | strain 11 and the electric power generating apparatus 13 like illustration.

  Further, the power generation device 13 is connected to the electric load 16 via the electric wiring 15, and the electric energy generated by directly converting the heat energy into the electric energy by the power generation device 13 is used for the demand of the electric load 16. . Examples of the electric load 16 connected to the power generation device 13 include an electric motor, a power storage device, a power feeding system, or a power system. In the temperature difference power generation system 10, the generated power is used as a power source for the electric load 16, and the manufacturing equipment that is the electric load 16 is driven.

  As shown in FIG. 2, the high temperature side system 11 is, for example, a high temperature pipe 11 a having a circular cross-sectional shape for circulating exhaust gas such as a thermal power plant, or a high temperature duct 11 b having a rectangular cross sectional shape as shown in FIG. As shown in FIG. 3, any of the high temperature part 11c which has an uneven | corrugated outer surface shape may be sufficient. That is, the high temperature side system 11 refers to a structure or facility in a region where heat is transferred directly or indirectly from a heat source, such as a high temperature pipe 11a, a high temperature duct 11b, or a high temperature portion 11c.

  The jig 12 functions as heat recovery means for receiving heat from or collecting heat from the high temperature side system 11. As the jig 12, a shape and material having high adhesion to the surface of the high temperature pipe 11a, the high temperature duct 11b or the high temperature portion 11c and the surface of the power generation device 13 are used. That is, the heat receiving surface of the jig 12 has a shape with good adhesion in accordance with the surface state of the high temperature side system 11 and the power generation device 13, thereby increasing the surface area per unit area and collecting heat energy (heat absorption). Improving efficiency.

  Specifically, it is formed of a material having excellent heat conduction characteristics such as aluminum and a low material density. Alternatively, it is made of a material with a low material density, such as a carbon sheet, which has excellent thermal conductivity and can be easily deformed by pressing to an irregular outer surface shape as shown in FIG. 4 to ensure adhesion. To do. With this configuration, the absorbed heat energy can be transferred to the power generation device (thermoelectric conversion device) 13 with high efficiency.

  As described above, the jig 12 has a good thermal conductivity and a uniform temperature according to the shape, surface roughness, and operating temperature of the outer surfaces of both the high temperature pipe 11a, the high temperature duct 11b or the high temperature portion 11c, and the power generation device 13. High material is used to improve the heat receiving or collecting ability.

  Further, the jig 12 is fixed to each other in a contact state without adhering to the outer surfaces of both the high temperature pipe 11a, the high temperature duct 11b or the high temperature portion 11c, and the power generation device 13 so as to absorb the difference in thermal expansion.

  The thermal energy recovered by the jig 12 is supplied to the power generation device 13 as described above and is radiated by the low temperature side system 14. The power generation device 13 is provided between the jig 12 and the low temperature side system 14, and uses the temperature difference between the jig 12 and the low temperature side system 14 to directly generate power with the heat flowing therebetween. In addition, the power generation device 13 includes a plurality of thermoelectric conversion modules. The thermoelectric conversion module is a module formed by combining many thermoelectric conversion chips of several cm square, for example, 1 cm square or 2 cm square. As the thermoelectric conversion chip, a semiconductor (for example, bismuth tellurium) having a good thermoelectric generation effect by the Seebeck effect is used.

The amount of power generation depends on the thermoelectric conversion efficiency of the thermoelectric conversion chip. For example, the thermoelectric conversion efficiency of the above-described bismuth tellurium is about 3 to 5%, but recently, a thermoelectric conversion efficiency increased to about 10% has been developed. To describe in a simplified manner, to the calorie content of 1 m ² per 120 kW, thermoelectric conversion efficiency of the thermoelectric conversion module is equal 10%, the power generation amount of 1 m ² per 12KW is obtained. According to the actual average thermoelectric conversion efficiency, for example, a power generation amount of several tens of watts to hundreds of tens of watts can be obtained with an A5 size thermoelectric conversion module. The amount of power generation depends on the amount of heat energy from the high-temperature pipe, high-temperature duct or high-temperature part, but if direct power generation is performed with high-temperature heat energy from the exhaust gas pipe of the plant, several KW per 1 m ² (about 3 KW to 12 KW) Can be obtained. For this reason, in the plant, when the power generation device 13 is efficiently arranged in the exhaust gas facility of the factory, it is possible to obtain a power generation amount of several hundred KW to several MKW per plant.

  Here, as described above, since the power generation device 13 is actually a module formed by combining many thermoelectric conversion chips of several centimeters square, the jig 12 described above is formed in several centimeters square according to this. Place a large number of square pipes or matrices on the surface of a hot pipe with a circular cross-section, the surface of a high-temperature pipe with a pyramid or conical shape that serves as a diffuser, and the surface of a hot duct or hot part. The power generation device 13 may be configured by attaching a thermoelectric conversion chip.

  The low temperature side system 14 includes a heat radiating unit that receives or collects thermal energy whose temperature has dropped due to power generation by the power generation device 13 and radiates the heat whose temperature has dropped. Although the heat radiating part of the low temperature side system 14 is not illustrated, it is configured in a heat radiating structure including a heat exchanger or an air fin cooler. The low temperature side system 14 uses liquid, gas, inert gas, or the like as a heat medium for maintaining the exhaust heat function. In the heat radiating part of the low temperature side system 14, the heat energy from the power generation device 13 is received to exchange heat and can be used for warm air and hot water. In order to improve the heat dissipation efficiency, for example, a dedicated cooling fan is used for the air fin cooler in the low temperature side system 14.

  Further, parts having a high material density are used as the parts having the heat radiation function of the low temperature side system 14. That is, as a component of the low temperature side system 14, a material having excellent heat conduction characteristics, excellent adhesion to the power generation device 13, and a material density that can be formed into a rigid body, for example, a constituent material based on carbon powder is used. It has been confirmed by an experiment by the applicant that the power generation performance is about 1.2 times that of the case where copper, which is an example of a general material of this type, is used when the constituent material based on this carbon powder is used. .

  As described above, among the apparatus components having the heat receiving or collecting function including the jig 12 from the high temperature side system 11 and the heat radiation function of the low temperature side system 14 for the power generation device 13, the heat radiation function of the low temperature side system 14 is provided. The material density of the components is maximized. On the other hand, the material is selected so that the material density of the jig 12 on the high temperature side becomes the smallest among the above-described apparatus components. That is, a component such as aluminum having a low material density is used for a portion in contact with the high temperature side system 11, and a constituent material based on carbon powder having a high material density is used for the parts of the low temperature side system 14. Experiments have confirmed that good power generation performance can be obtained with these configurations.

  Moreover, in the example of FIG. 1 thru | or FIG. 3, although 1 set is provided with respect to the high temperature side system | strain 11 with the jig 12 and the low temperature side system | strain 14, of course, it is not limited to this, For example, As shown in FIG. 5, a plurality of sets (two sets in the illustrated example) of power generation devices 13 having the jig 12 and the low-temperature side system 14 may be provided on the outer periphery of the high-temperature pipe 11a having a circular cross section. In this case, a heat insulating material 17 is installed on the outer surface of the high temperature side system 11 as a heat dissipation suppression at a portion that does not contact the jig 12. If comprised in this way, the heat transfer efficiency to the electric power generating apparatus 13 can be improved further.

  In the above configuration, thermal energy released from the high temperature side system 11 such as a high temperature pipe, a high temperature duct or a high temperature portion of the temperature difference power generation system 10 is received or collected by the jig 12 and collected. The recovered thermal energy is transmitted to a power generation device 13 composed of a thermoelectric conversion element using a temperature difference. In the power generation device 13, the transmitted unused thermal energy is converted into electrical energy due to a temperature difference from the low-temperature system 14. The converted electric energy is taken out from the power generator 13 through the electric wiring 15 shown in FIG. 1 and supplied to the electric load 16. The electric load 16 drives an electric motor, stores power in a power storage device, is supplied to a power feeding system or a power system, and is used for power demand. As the electric load 16, for example, an electric motor is used to obtain a driving force necessary for production in a factory, and is used for driving a roller for transferring a product (material). In this case, the temperature difference power generation system 10 is used as a power source for driving the electric motor.

  That is, the temperature difference power generation system 10 is a power generation system that collects thermal energy such as unused exhaust pipes in a factory to generate power, and includes a jig 12 having an endothermic function and an air fin cooler or water. Electric power is generated by a temperature difference between the power generation device 13 provided between the low-temperature system 14 having a heat exhaust function such as a cold heat exchanger. You may supply the electric power which generate | occur | produced in the electric power generating apparatus 13 as a drive electric power source of the motor used for the manufacturing process of a factory, or charge the battery with the surplus electric power at the time of supplying the drive electric power etc. of a motor. Further, the electric power generated by the power generation device 13 is used as electric power necessary for the production line of the factory and also as a driving power source for the factory. Furthermore, the generated power is supplied to a power system as a power generation load and can be transmitted to power systems inside and outside the factory.

In this way, it is possible to directly convert unused thermal energy into electrical energy in the manufacturing facilities of factories of various plants, collect it in the form of electrical energy that is easy to use as energy, and use it or store it. For this reason, in the industry which has a manufacturing facility, reuse of the heat energy conventionally thrown away unused can be aimed at. That is, unused thermal energy can be recovered in the form of electrical energy that can be easily used and reused. Therefore, even in the industry with manufacturing facilities, it can be recovered and reused as electric energy, so that the amount of power introduced from the outside of the factory can be reduced and energy saving measures can be taken, contributing to the suppression of CO ₂ generation. can do.

  The power generation device (thermoelectric conversion device) 13 may be a thermoelectric conversion element in addition to the thermoelectric conversion element.

  Next, the embodiment shown in FIG. 6 will be described. In the temperature difference power generation system 10 shown in this embodiment, when the jig 12, the power generation device 13, and the low temperature side system 14 are attached to the high temperature side system 11, they are pressed and fixed from the outside of the low temperature side system 14. In addition, a component 18 (hereinafter referred to as a fixed component) having a fixing function is provided. The fixed component 18 includes a fluid 22 supplied from the pipe 20 and the pressure increase / decrease adjustment device 21, and is attached to the high temperature side system 11 via the low temperature side system 14 by increasing / decreasing the fluid 22. A predetermined pressure is applied to the jig 12 and the power generator 13. As the inclusion fluid, a gas, a liquid, or a fluid in which both are mixed is used. The other configuration is the same as that of the temperature difference system 10 shown in FIG.

  That is, for the power generation device 13, the device components having the heat receiving or collecting function from the high temperature side system 11 and the heat radiation function of the low temperature side system 14 are fixed from the outside of the parts having the heat radiation function of the low temperature side system 14. The component 18 is configured to be pressed.

  The pressure increase / decrease adjustment device 21 has a function of adjusting the pressure of the fluid 22 contained in the fixed component 18. As a result, the jig 12, the power generation device 13, the low temperature side system 14 and the high temperature side system 11 are pushed. The pressure can be adjusted.

  That is, by adjusting the pressure applied to the fluid contained in the fixed component 18 to an arbitrary pressure, the pressing force applied to the device component can be adjusted.

  The fixed component 18 is formed of a single or braided material such as rubber or fiber that expands and contracts by the pressure and pressure of the fluid 22 contained therein. For this reason, since it contacts with the low temperature side system | strain 14 in a surface, a pressing force can be equally applied to the surface which receives the press of the electric power generating apparatus 13. FIG.

  That is, since the fixed component 18 uses a material having an appropriate elasticity for the component material for enclosing the fluid, the contact with the component having the heat radiation function of the low-temperature side system 14 is a surface contact, and the power generator A uniform pressing force can be maintained with respect to 13 simple substances.

  A plurality of sets of power generators 13 installed between the jig 12 and the low temperature side system 14 may be in parallel with the high temperature side system 11. In the example of FIG. 7, a plurality of sets of power generation devices 13 installed between the jig 12 and the low-temperature side system 14 are provided radially on the outer peripheral surface of the high-temperature pipe 11 a having a circular cross section. In this case, a fixed part 18a having elasticity formed in an annular shape is attached to the outside thereof, and each low temperature side of the plurality of sets of power generators 13 arranged radially in parallel on the inner periphery of the annular fixed part 18a. The system 14 is pressed and held.

  That is, when a plurality of sets of device components composed of the jig 12, the power generation device 13, and the low temperature side system 14 are arranged side by side with respect to the high pressure side system 11, by using a fixed component 18a having a stretchability formed in an annular shape, A uniform pressing force can be maintained for a plurality of the apparatus components arranged in parallel.

  By comprising in this way, since the said apparatus component components including the electric power generating apparatus 13 are pressed uniformly, the adhesiveness between these components increases. As a result, the thermal conductivity is increased and the power generation performance can be further enhanced.

  As shown in FIG. 7, by connecting a discharge pipe 24 having a discharge valve 23 to the other part of the fixed part 18a, the contained fluid is circulated in the fixed part 18a. It can be used as a medium for discharging heat from the side system 14 to the outside.

  That is, the fixed component 18a uses a gas or liquid or a mixture of both as the inclusion fluid, and this fluid can be circulated in and out of the fixed component 18a to bear the heat radiation function of the low temperature side system 14. it can.

  In this case as well, the inside of the fixed component 18a can be set to an arbitrary pressure by the pressure applied by the pressure-intensifying adjustment device 21 and the valve opening degree of the discharge valve 23. Moreover, you may comprise so that the front-end | tip of the discharge pipe 24 may be connected with the entrance side of the pressure-intensification adjustment apparatus 21st place, and the inclusion fluid may be circulated. In this case, the inclusion fluid can be cooled outside by adding a heat removal function such as a heat exchanger in the middle of the circulation path. For this reason, the heat dissipation function of the low temperature side system | strain 14 can be improved further.

  Next, the embodiment shown in FIG. 8 will be described. The temperature difference power generation system 10 according to this embodiment includes a fixed component in order to effectively maintain the pressing force of the fixed component 18 for attaching the jig 12, the power generation device 13, and the low temperature side system 14 to the high temperature side system 11. A lashing jig 19 made of a material more robust than the fixed component 18 is provided outside the fixing part 18. Since the other configuration is not different from the temperature difference system 10 shown in FIG.

  The lashing jig 19 suppresses the pressing force acting on the outer peripheral side opposite to the low temperature side system 14 as a result of the pressure adjustment, and effectively pushes the fixing tool 19 toward the low temperature side system 14 side. The pressure is applied. In addition, as shown in FIG. 9, what is necessary is just to use the cyclic | annular securing tool 18a fitted to the outer periphery with respect to the cyclic | annular fixed component 18a. As these lashing jigs 18 and 18a, a wire net, a metal mesh, a punching metal, or the like, which has a low bulk density by providing a gap, may be used. If it does in this way, a load can be decreased also as a load to a structure.

As described above, the above-described temperature difference power generation system recovers unused high-temperature heat energy in the form of electric energy that is easy to use as energy, and enables reuse, thereby saving energy in various plants and facilities. Accelerates the promotion of CO2 and the suppression of CO ₂ generation, and has the effect of suppressing global warming.

It is a schematic block diagram which shows one Embodiment of the temperature difference power generation system by this invention. It is a schematic block diagram explaining a high temperature piping as an example as a high temperature side system | strain in one Embodiment same as the above. It is a schematic block diagram explaining a high temperature duct as an example as a high temperature side system | strain in one embodiment same as the above. It is a schematic block diagram explaining a high temperature part as an example as a high temperature side system | strain in one Embodiment same as the above. It is a schematic block diagram explaining the example which covered the part which does not contact the jig of the high temperature side system | strain in one Embodiment same as the above with the heat insulating material. It is a schematic block diagram explaining embodiment using the fixing component for a press of this invention. It is a schematic block diagram which shows the modification of embodiment same as the above. It is a schematic block diagram explaining embodiment using the lashing jig of this invention. It is a schematic block diagram which shows the modification of embodiment same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 High temperature side system 11a High temperature piping 11b High temperature duct 11c High temperature part 12 Jig 13 Power generation device 14 Low temperature side system 17 Heat insulating material 18 Fixing part 19 Lashing part 21 Compressing / depressurizing adjustment apparatus 22 Fluid

Claims (15)

A power generator that directly converts thermal energy into electrical energy due to the temperature difference between the high temperature side system and the low temperature side system is provided between the high temperature side system having thermal energy and the low temperature side system having a lower temperature than the high temperature side system. Temperature difference power generation system,
For the power generation device, among the device components having the heat receiving or collecting function from the high temperature side system and the heat radiation function of the low temperature side system, the material density of the parts having the heat radiation function of the low temperature side system was maximized A temperature difference power generation system characterized by that.   The temperature difference according to claim 1, wherein the high-temperature side system is a high-temperature pipe, a high-temperature duct, or a high-temperature part, and a jig for transferring thermal energy is installed between the outer surface of the high-temperature side system and the power generation device. Power generation system.   3. The temperature difference power generation system according to claim 2, wherein the jig is made of a shape and a material having high adhesion to a surface of a high-temperature pipe, a high-temperature duct or a high-temperature part, and a surface of a power generation device.   The temperature according to claim 2 or 3, wherein the jig is in contact with both the high-temperature pipe, the high-temperature duct or the high-temperature part and the outer surface of the power generation device in a state capable of absorbing a difference in thermal expansion. Differential power generation system.   The jig is made of a material with high thermal conductivity and high temperature uniformity corresponding to the shape, surface roughness, and operating temperature of both the high-temperature piping, the high-temperature duct or the high-temperature part, and the power generator. The temperature difference power generation system according to any one of claims 2 to 4, wherein the capacity of the power generation system is improved.   3. The temperature according to claim 2, wherein the jig has the lowest material density among apparatus components having a function of receiving or collecting heat from the high temperature side system and a heat radiation function of the low temperature side system with respect to the power generation device. Differential power generation system.   The temperature difference power generation system according to any one of claims 2 to 6, wherein a heat insulating material is installed on a surface portion of a high-temperature pipe, a high-temperature duct, or a high-temperature part that is not in contact with a jig to suppress heat radiation. .   The power generation device has a fixing function of pressing a device component having heat receiving or collecting heat from the high temperature side system and a heat radiation function of the low temperature side system from the outside of the component having the heat radiation function of the low temperature side system. The temperature difference power generation system according to claim 1, wherein parts are installed.   The temperature difference power generation system according to claim 8, wherein the component having the fixing function includes a fluid as the pressing means, and the pressing force can be adjusted by arbitrarily adjusting the pressure on the fluid.   For the power generation device, a plurality of device components having a heat receiving function or a heat collecting function from a high temperature side system and a heat radiation function of a low temperature side system are arranged in parallel to the high pressure side system, and a component having a fixing function is The temperature difference power generation system according to claim 8 or 9, wherein a uniform pressing force can be maintained for a plurality of the apparatus components arranged side by side.   11. The component having the fixing function can maintain a uniform pressing force with respect to the power generation device alone by making the contact with the component having the heat radiation function of the low temperature side system a surface contact. Temperature difference power generation system described in.   12. The component having a fixing function uses a gas or a liquid or a mixture of both as an inclusion fluid, and has a pressure adjusting function for the fluid from the inside or the outside. Temperature difference power generation system described in.   A component having a fixing function uses a gas or liquid or a mixture of both as an inclusion fluid, and circulates this fluid in and out of the component having a fixing function, and assumes the heat radiation function of the low-temperature side system. The temperature difference power generation system according to any one of claims 8 to 12.   14. The temperature difference power generation system according to claim 9, wherein the component having the fixing function uses a material having an appropriate stretchability as a component material for enclosing a fluid.   The parts having the fixing function are secured from the outside, and the pressing force by the parts having the fixing function is applied to the power generation device from the high-temperature side heat receiving function or the heat collecting function and the low-temperature side heat dissipating function. The temperature difference power generation system according to any one of claims 8 to 14, wherein a securing part to be effectively added is installed in the equipment component part provided.

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