CN212563477U - A built-in phase-modulated free-piston Stirling generator - Google Patents
A built-in phase-modulated free-piston Stirling generator Download PDFInfo
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- CN212563477U CN212563477U CN202021026379.0U CN202021026379U CN212563477U CN 212563477 U CN212563477 U CN 212563477U CN 202021026379 U CN202021026379 U CN 202021026379U CN 212563477 U CN212563477 U CN 212563477U
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- 230000006835 compression Effects 0.000 claims abstract description 22
- 238000007906 compression Methods 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 34
- 229910052742 iron Inorganic materials 0.000 claims description 17
- 239000007789 gas Substances 0.000 description 9
- 230000005611 electricity Effects 0.000 description 5
- 241000282414 Homo sapiens Species 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 239000002803 fossil fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
本实用新型涉及动力机械领域，公开了一种内置调相型自由活塞斯特林发电机，包括：壳体和设置在所述壳体内的背压腔、压缩腔、膨胀腔、调相组件、直线电机、温度调节组件；调相组件的调相端位于背压腔中，背压腔通过调相组件与膨胀腔连通，膨胀腔通过温度调节组件与压缩腔连通；直线电机的动力活塞可活动地设置在压缩腔中。本实用新型提供的内置调相型自由活塞斯特林发电机，取消了膨胀腔里面往复运动的活塞，通过调相组件使膨胀腔与背压腔连通，并将调相组件的的调相端置于背压腔中，使调相组件可以利用背压腔微小的压力波动辅助调相，减小了运动部件增加了可靠性，而且简化了装置的整体结构，同时内置的调相组件有效提高了发电机的效率。
The utility model relates to the field of power machinery, and discloses a built-in phase-modulated free-piston Stirling generator, comprising: a shell, a back pressure cavity, a compression cavity, an expansion cavity, a phase-modulation component, a back pressure cavity, a compression cavity, an expansion cavity, a phase adjustment component, Linear motor and temperature adjustment assembly; the phase adjustment end of the phase adjustment assembly is located in the back pressure chamber, the back pressure chamber is communicated with the expansion chamber through the phase adjustment assembly, and the expansion chamber is communicated with the compression chamber through the temperature adjustment assembly; the power piston of the linear motor is movable installed in the compression chamber. The built-in phase-modulating free-piston Stirling generator provided by the utility model eliminates the reciprocating piston in the expansion chamber, the expansion chamber is communicated with the back pressure chamber through the phase-modulating component, and the phase-modulating end of the phase-modulating component is connected to each other. It is placed in the back pressure chamber, so that the phase modulation component can use the small pressure fluctuation of the back pressure chamber to assist the phase modulation, reduce the number of moving parts, increase the reliability, and simplify the overall structure of the device. the efficiency of the generator.
Description
Technical Field
The utility model relates to a power machinery especially relates to a built-in phase modulation type free piston stirling generator.
Background
The energy and environment problems become the main problems restricting the development of all countries in the world. With the continuous development of society, the traditional high-grade fossil fuel can not meet the requirements of human beings in quantity, and the problem of environmental pollution caused by the traditional high-grade fossil fuel also does not accord with the new development concept of human beings. At present, on the one hand, new alternative energy sources such as solar energy and nuclear energy are actively explored in all countries in the world; on the other hand, it is also under investigation how to utilize existing low-grade energy sources, such as waste heat and general fuel. However, various energy sources need to be converted into electricity or electricity, so that the electricity can be more conveniently and effectively utilized by human beings. Therefore, one of the effective ways to solve the above problems is to develop a power mechanical device capable of converting various new alternative energy and low-grade energy into electricity with high efficiency.
The internal phase modulation type free piston Stirling generator is a high-efficiency external combustion type thermoelectric conversion machine, and almost all existing heat source types can be utilized. The conventional free piston Stirling generator generally comprises two pistons, wherein one piston reciprocates in a high-temperature environment, so that the reliability of the generator is reduced. At present, a free piston Stirling generator with only one piston exists, but the free piston Stirling generator is low in efficiency and cannot be practically used.
SUMMERY OF THE UTILITY MODEL
In view of above-mentioned technical defect and application demand, the embodiment of the utility model provides a built-in phase modulation type free piston stirling generator to promote the reliability of generator, promote the efficiency of generator simultaneously.
In order to solve the above problem, the utility model provides a built-in phase modulation type free piston stirling generator, include: the device comprises a shell, and a back pressure cavity, a compression cavity, an expansion cavity, a phase modulation component, a linear motor and a temperature regulation component which are arranged in the shell;
the phase modulation end of the phase modulation component is positioned in the back pressure cavity, the back pressure cavity is communicated with the expansion cavity through the phase modulation component, and the expansion cavity is communicated with the compression cavity through the temperature regulation component; and a power piston of the linear motor is movably arranged in the compression cavity.
Further, the temperature adjustment assembly includes: the phase modulation connecting pipe and the phase modulation mechanism are connected with each other;
the phase modulation connecting pipe sequentially penetrates through the back pressure cavity, the compression cavity and the expansion cavity; the phase modulation mechanism is positioned in the back pressure cavity, the back pressure cavity is communicated with the expansion cavity sequentially through the phase modulation mechanism and the phase modulation connecting pipe, and the power piston is movably arranged on the phase modulation connecting pipe.
Further, the phase modulation mechanism is one or a combination of more of an inertia pipe, a small hole or a piston.
Further, the temperature adjustment assembly includes: a cooler, a regenerator, and a heater;
the compression chamber is communicated with the expansion chamber through the cooler, the heat regenerator and the heater in sequence.
Further, the linear motor includes: the coil, the inner return iron, the outer return iron, the coil bracket and the elastic piece; the two end parts of the elastic part are respectively fixed with the outer return iron, the power piston is abutted against the elastic part, the coils are wound on opposite positions of two side edges of the coil support, and the inner return iron is arranged between the outer return iron and the coils.
Further, the elastic member is a plate spring.
Further, the plate spring includes:
the supporting plate and the plurality of plate spring cantilevers; each leaf spring cantilever all installs in the backup pad, and each leaf spring cantilever is spaced each other and follows the circumference of backup pad is spiral and extends.
Furthermore, the center of the supporting plate is provided with a connecting hole of the phase modulation assembly, and the starting end of each plate spring cantilever is tangent to the connecting hole.
Further, the arm widths of the leaf spring cantilevers are equal.
The utility model provides a built-in phase modulation type free piston stirling generator has cancelled the piston of expansion chamber the inside reciprocating motion, makes expansion chamber and backpressure chamber intercommunication through the phase modulation subassembly to put the phase modulation end of phase modulation subassembly in the backpressure chamber, make the phase modulation subassembly can utilize the little pressure fluctuation of backpressure chamber to assist the phase modulation, reduced the moving part and increased the reliability, simplified the overall structure of device moreover, built-in phase modulation subassembly has effectively improved the efficiency of generator simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a built-in phase modulation type free piston stirling generator according to an embodiment of the present invention;
description of reference numerals: 1. a housing; 2. a back pressure chamber; 3. an elastic member; 4. a coil; 5. internally returning iron; 6. a power piston; 7. returning iron outside; 8. a compression chamber; 9. a cooler; 10. a heat regenerator; 11. a heater; 12. an expansion chamber; 13. a connecting pipe; 14. a phase modulation mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the utility model provides a built-in phase modulation type free piston stirling generator, as shown in fig. 1, this built-in phase modulation type free piston stirling generator includes: the device comprises a shell 1, and a back pressure cavity 2, a compression cavity 8, an expansion cavity 12, a phase modulation component, a linear motor and a temperature regulation component which are arranged in the shell 1; the phase modulation end of the phase modulation component is positioned in the back pressure cavity 2, the back pressure cavity 2 is communicated with the expansion cavity 12 through the phase modulation component, and the expansion cavity 12 is communicated with the compression cavity 8 through the temperature modulation component; the power piston 6 of the linear motor is movably arranged in the compression chamber 8.
In the working process of the internal phase modulation type free piston Stirling generator, the whole internal phase modulation type free piston Stirling generator forms a cavity completely sealed with the outside through the shell 1, and the inside of the cavity is filled with high-pressure helium. When the temperature regulating assembly of the generator is heated from the outside, the gas expands due to heat, the pressure in the expansion chamber 12 rises, and the power piston 6 is pushed to move. Because the power piston 6 moves to make the volume of the compression cavity 8 larger, and meanwhile, the gas moves to the temperature adjusting component to be cooled, the pressure of the expansion cavity 12 is reduced, the power piston 6 moves in the opposite direction to push the gas to the temperature adjusting component to be heated, and the cycle is repeated. The power piston 6 moves to drive the coil of the linear motor to cut the magnetic induction line, thereby outputting electricity to the outside. The whole process is that the built-in phase modulation type free piston Stirling generator continuously converts external heat energy into electric energy.
The embodiment of the utility model provides a built-in phase modulation type free piston stirling generator has cancelled the piston of expansion chamber the inside reciprocating motion, makes expansion chamber and backpressure chamber intercommunication through the phase modulation subassembly to put the phase modulation end of phase modulation subassembly in the backpressure chamber, make the phase modulation subassembly can utilize the little pressure fluctuation of backpressure chamber to assist the phase modulation, reduced the moving part and increased the reliability, simplified the overall structure of device moreover, the efficiency of generator has effectively been improved to the built-in phase modulation subassembly of while.
Based on the above embodiments, in a preferred embodiment, as shown in fig. 1, the temperature adjustment assembly includes: a phase modulation connecting pipe 13 and a phase modulation mechanism 14 which are connected with each other;
wherein, the phase modulation connecting pipe 13 sequentially passes through the back pressure cavity 2, the compression cavity 8 and the expansion cavity 12; the phase modulation mechanism 14 is positioned in the back pressure cavity 2, the back pressure cavity 2 is communicated with the expansion cavity 12 through the phase modulation mechanism 14 and the phase modulation connecting pipe 13 in sequence, and the power piston 6 is movably arranged on the phase modulation connecting pipe 13. A phasing mechanism 14 is installed in the back pressure chamber 2 so that the back pressure chamber 2 can be used as a phasing air reservoir. In addition, the phase modulation mechanism 14 can utilize the pressure fluctuation of the back pressure cavity 2 to play a role in assisting phase modulation. The gas in the back pressure cavity 2 flows into the expansion cavity 12 through the phase modulation mechanism 14, the phase of the pressure wave is changed after the expansion cavity 12 is mixed, and the phase can be effectively adjusted to the optimal value by changing the form of the phase modulation mechanism 14, so that the efficiency of the generator is improved.
Wherein, the phase modulation mechanism 14 can be one or more of an inertia tube, a small hole or a piston.
In this embodiment, the temperature adjustment assembly includes: a cooler 9, a regenerator 10 and a heater 11. The cooler 9 serves to cool the gas flowing therethrough. The heater 11 is used to heat the gas flowing therethrough. The regenerator 10 is disposed between the cooler 9 and the heater 11 for improving heat exchange efficiency. The compression chamber 8 communicates with the expansion chamber 12 through a cooler 9, a regenerator 10, and a heater 11 in this order. When the heater 11 of the generator is heated from the outside, the gas expands due to heat, the pressure of the expansion chamber 12 rises, and the piston is pushed to move. The power piston 6 moves to make the volume of the compression chamber 8 larger, and simultaneously the gas moves to the cooler 9 to be cooled, the temperature is reduced, the pressure of the expansion chamber 12 is reduced, the power piston 6 moves in the opposite direction, and the gas is pushed to the heater 11 to be heated, so that the repeated circulation is carried out.
Wherein, linear electric motor includes: the coil 4, the inner return iron 5, the outer return iron 7, the coil support and the elastic part 3; two ends of the elastic part 3 are respectively fixed with the outer return iron 7, the power piston 6 is abutted against the elastic part 3, the coil 4 is wound on the opposite position of two side edges of the coil support, and the inner return iron 5 is arranged between the outer return iron 7 and the coil 4.
In some preferred embodiments, the elastic member 3 may be selected to be a plate spring. The plate spring includes: the supporting plate and the plurality of plate spring cantilevers; the arm widths of the cantilever arms of the leaf springs are equal. Each leaf spring cantilever all installs in the backup pad, and each leaf spring cantilever is the spiral extension that spirals each other at interval and along the circumference of backup pad. The center of the supporting plate is provided with a connecting hole of the phase modulation component, and the starting end of each plate spring cantilever is tangent to the connecting hole.
To sum up, the embodiment of the utility model provides a built-in phase modulation type free piston stirling generator has cancelled the piston of expansion chamber the inside reciprocating motion, makes expansion chamber and backpressure chamber intercommunication through the phase modulation subassembly to put the phase modulation end of phase modulation subassembly in the backpressure chamber, make the phase modulation subassembly can utilize the little pressure fluctuation of backpressure chamber to assist the phase modulation, reduced moving part and increased the reliability, simplified the overall structure of device moreover, built-in phase modulation subassembly has effectively improved the efficiency of generator simultaneously.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021026379.0U CN212563477U (en) | 2020-06-05 | 2020-06-05 | A built-in phase-modulated free-piston Stirling generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021026379.0U CN212563477U (en) | 2020-06-05 | 2020-06-05 | A built-in phase-modulated free-piston Stirling generator |
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| CN212563477U true CN212563477U (en) | 2021-02-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756985A (en) * | 2020-06-05 | 2021-12-07 | 中国科学院理化技术研究所 | A built-in phase-modulated free-piston Stirling generator |
| CN115289713A (en) * | 2021-09-14 | 2022-11-04 | 中国科学院上海技术物理研究所 | An integrated pulse tube refrigerator with active piston phasing and power recovery supported by column springs |
-
2020
- 2020-06-05 CN CN202021026379.0U patent/CN212563477U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756985A (en) * | 2020-06-05 | 2021-12-07 | 中国科学院理化技术研究所 | A built-in phase-modulated free-piston Stirling generator |
| CN113756985B (en) * | 2020-06-05 | 2025-03-18 | 中国科学院理化技术研究所 | A built-in phase-modulated free piston Stirling generator |
| CN115289713A (en) * | 2021-09-14 | 2022-11-04 | 中国科学院上海技术物理研究所 | An integrated pulse tube refrigerator with active piston phasing and power recovery supported by column springs |
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