WO2020095386A1 - Machine à fluide à spirales - Google Patents

Machine à fluide à spirales Download PDF

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Publication number
WO2020095386A1
WO2020095386A1 PCT/JP2018/041360 JP2018041360W WO2020095386A1 WO 2020095386 A1 WO2020095386 A1 WO 2020095386A1 JP 2018041360 W JP2018041360 W JP 2018041360W WO 2020095386 A1 WO2020095386 A1 WO 2020095386A1
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WO
WIPO (PCT)
Prior art keywords
scroll
fluid machine
wrap
expansion chamber
fixed disk
Prior art date
Application number
PCT/JP2018/041360
Other languages
English (en)
Japanese (ja)
Inventor
藤岡　完
小林　健一
齋藤　昌之
ルカ ネスポリ
Original Assignee
アネスト岩田株式会社
エネルジェティカメンテ リノヴァービリ エス アール エル
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by アネスト岩田株式会社, エネルジェティカメンテ リノヴァービリ エス アール エル filed Critical アネスト岩田株式会社
Priority to PCT/JP2018/041360 priority Critical patent/WO2020095386A1/fr
Publication of WO2020095386A1 publication Critical patent/WO2020095386A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

Definitions

  • the present disclosure relates to scroll fluid machines.
  • scroll compressors for compressing fluids and scroll expanders for extracting and using the energy of expanding fluids as swirling forces are known.
  • Patent Document 1 two scrolls of fixed scroll wrap whose phases are shifted from each other by 180 ° about a first involute base circle and two scrolls of which phases are shifted from each other by 180 ° about a second involute base circle.
  • a scroll expander configured to apply a high torque to the orbiting scroll wrap by arranging the orbiting scroll wrap and the orbiting scroll wrap with respect to the involute base circle by shifting their phases by 90 °.
  • scroll fluid machines are characterized by less torque fluctuation, less noise and vibration, and higher energy efficiency than other fluid machines. Utilizing such characteristics, it is desired to be applied to various applications by combining scroll type fluid machinery.
  • a scroll type fluid machine for example, power generation is performed in which a fluid containing a mixture of air and fuel is compressed by a scroll compressor, and the compressed fluid is burned and expanded by a scroll expander.
  • Devices supercharged internal combustion scroll rotary motors
  • this power generation device is expected to have better performance than a power generation device such as a conventional internal combustion engine.
  • At least one embodiment of the present invention aims to realize a scroll fluid machine including a compression chamber and an expansion chamber that handles a fluid containing a mixture for power generation, in a compact configuration. ..
  • a scroll fluid machine for compressing or expanding a fluid containing a mixture of air and fuel, comprising: A swirl disk including a spiral first wrap standing on a first surface and a spiral second wrap standing on a second surface opposite to the first surface; A first fixed disk including a spiral third wrap standing on one surface opposite to the first surface and forming a compression chamber with the first wrap; A second fixed disk that includes a spiral fourth wrap that is provided upright on one surface facing the second surface and that forms an expansion chamber with the second wrap; Is equipped with.
  • the orbiting disc includes the first wrap forming the compression chamber on the first surface thereof, and the second wrap forming the expansion chamber on the second surface opposite to the first surface.
  • the scroll type compression chamber can be arranged in parallel on one side and the scroll type expansion chamber can be arranged side by side on the other side of the orbiting disc. That is, the first wrap for forming the scroll type compression chamber and the second wrap for forming the scroll type expansion chamber are provided on one surface and the other surface of the common swivel disk, respectively.
  • a first scroll unit and a second scroll unit in which the first fixed disk and the second fixed disk are combined with the orbiting disk sandwiched may be provided in the orbiting axis direction of the orbiting disk.
  • the capacity of the expansion chamber or the compression chamber required according to the desired output is arbitrarily adjusted by the number of scroll units installed in the orbiting axis direction without increasing the size in the radial direction.
  • a possible scroll fluid machine can be realized with a compact configuration.
  • the first fixed disk or the second fixed disk of the first scroll unit may be integrally configured with the first fixed disk or the second fixed disk of the second scroll unit.
  • the fixed disks of the first scroll unit and the second scroll unit that are adjacent to each other are integrally configured, so that the number of parts can be reduced.
  • the first scroll unit and the second scroll unit may be configured symmetrically with respect to a joint surface of the first scroll unit and the second scroll unit.
  • the two scroll units are symmetrically arranged in the orbiting axis direction with the joint surface of each scroll unit as a boundary. Therefore, for example, it is possible to realize a scroll fluid machine that is well balanced in the orbiting axis direction with respect to the load caused by the expansion of the compressed fluid or the orbiting motion of the orbiting disk with a compact configuration.
  • the first scroll unit and the second scroll unit may be combined so that the compression chamber is located closer to the joint surface than the expansion chamber.
  • the scroll units are combined so that the compression chamber is provided inside and the expansion chamber is provided outside with respect to the joint surface.
  • the expansion chamber can be easily accessed from the outside, and thus the fluid after expansion can be easily taken out.
  • a cooling unit including a coolant passage through which a coolant can pass may be provided between the first scroll unit and the second scroll unit.
  • a cooling unit that includes a cooling passage through which a refrigerant can pass is provided between the scroll units. It is provided. Since the cooling unit is provided between the scroll units, it is possible to cool two scroll units adjacent to each other at the same time. The refrigerant that has recovered the amount of heat by cooling the two scroll units can also be used by taking it out to the outside.
  • the swivel disc may be configured to be swivelable relative to the first fixed disc and the second fixed disc by a plurality of support mechanisms arranged at different positions along the circumferential direction.
  • the support mechanism may include a shaft that is connected to the swivel disc and extends in the swivel axis direction, and a bearing that rotatably supports the shaft.
  • the rotating disk can be rotatably supported by the bearing via the shaft rotatably supported by the bearing. Furthermore, for example, by using a bearing capable of bearing the load acting on the shaft in the radial direction and the thrust direction, it is possible to realize a smooth turning operation of the turning disk.
  • the height of the first wrap may be different from the height of the second wrap.
  • the volume of the compression chamber formed on the first surface side of the swivel disc and the volume of the expansion chamber formed on the second surface side are arbitrarily adjusted with a simple configuration. be able to.
  • the scroll fluid machine as a whole can arbitrarily change the volume ratio between the compression chamber and the expansion chamber without changing the size in the orbiting axis direction. Can be changed.
  • At least one of the first fixed disk and the second fixed disk may include a heat dissipation fin that is capable of contacting with the outside air.
  • a communication passage may be further provided that connects the compression chamber and the expansion chamber.
  • the compression chamber and the expansion chamber capable of communicating fluids with each other can be realized with a compact configuration.
  • a power generation device may be configured to output an output torque by generating a high temperature gas by expanding and igniting the high temperature gas by igniting and burning the fluid by the spark plug in the expansion chamber.
  • the spark plug is arranged in the expansion chamber.
  • a spark plug ignites and burns a fluid containing a combustible mixture to generate a high temperature gas, and the high temperature gas expands to output an output torque.
  • the fluid introduced into the expansion chamber may be configured to be compressed in the compression chamber.
  • the fluid is supplied to the compression chamber via the supply passage, and the fluid is discharged from the expansion chamber via the discharge passage. Therefore, the scroll fluid machine including the compressor and the expander and capable of smoothly supplying and discharging the fluid can be realized with a compact configuration.
  • a scroll fluid machine including a compression chamber and an expansion chamber that handles a fluid containing a mixture for power generation, with a compact configuration.
  • an expression representing a shape such as a quadrangle or a cylindrical shape does not only represent a shape such as a quadrangle or a cylindrical shape in a geometrically strict sense, but also an uneven portion or A shape including a chamfered portion and the like is also shown.
  • the expressions “comprising”, “comprising”, “comprising”, “including”, or “having” one element are not exclusive expressions excluding the existence of other elements.
  • FIG. 1 is a sectional view schematically showing a configuration of a scroll fluid machine 1 according to at least one embodiment of the present invention.
  • a scroll fluid machine 1 according to at least one embodiment of the present invention is used to compress or expand a fluid F.
  • the scroll fluid machine 1 is used to compress a mixture of air and fuel, ignite and burn the mixture, expand hot gas, and provide an output torque corresponding to an internal combustion scroll rotary motor. obtain.
  • the scroll fluid machine 1 includes a spiral first wrap 24 standing on a first surface 22 and a spiral second wrap standing on a second surface 26 opposite to the first surface 22.
  • First fixing including a swirl disc 20 including a wrap 28, and a spiral third wrap 32 standing upright on one surface of the swivel disc 20 facing the first surface 22 and forming a compression chamber 50 together with the first wrap 24.
  • the swivel disc 20 is formed by a first wrap 24 formed on the first surface 22 of the swivel disc 20 and a third wrap 32 formed on a fixed disc (first fixed disc 30).
  • Form a scroll compressor for compressing the fluid F and a second wrap 28 formed on the second surface 26 of the orbiting disc 20 and a fourth wrap formed on a fixed disc (second fixed disc 40).
  • a scroll expander for taking out the energy of the fluid F expanded in the expansion chamber 52 formed by 42 as rotation energy is formed.
  • the scroll expander introduces a high-pressure working fluid F into a gas pocket formed by meshing spiral wraps 28 and 42 provided on an orbiting scroll (orbiting disc 20) and a fixed scroll (second fixed disc 40).
  • the orbiting scroll is orbited by the energy of the working fluid F at the time of expansion, and the orbiting force of the orbiting scroll is extracted as a rotational force.
  • the extracted rotational force may, for example, be transmitted to the rotating shaft of the generator for the orbiting motion of the orbiting scroll to obtain electric power, or may be used as a power source for another machine such as a pump.
  • the first fixed disk 30 and the second fixed disk 40 are sandwiched by the single turning disk 20 having the laps formed on one surface (for example, the front surface) and the other surface (for example, the back surface).
  • the following description will be made on the assumption that the scroll unit 10 has a configuration including a compression chamber and an expansion chamber.
  • the general structure and operating principle for constructing a scroll compressor and a scroll expander are well known and will not be described in detail here.
  • the orbiting disc 20 includes the first wrap 24 forming the compression chamber 50 on the first surface 22 thereof, and the expansion chamber 52 is provided on the second surface 26 opposite to the first surface 22.
  • the second wrap 28 By including the second wrap 28 to be formed, it is possible to arrange the scroll type compression chamber 50 on one side and the scroll type expansion chamber 52 on the other side across the orbiting disc 20. That is, the first wrap 24 for forming the scroll type compression chamber and the second wrap for forming the scroll type expansion chamber 52 are formed on one surface (first surface 22) of the common orbiting disk 20.
  • the scroll fluid machine 1 including the compressor and the expander can be realized with a compact configuration.
  • the scroll fluid machine 1 according to the present disclosure may be used as a power source for extracting hot water or heat for heating while generating electric power as a CHP (combined heat and electric power), for example.
  • FIG. 2 is a perspective view schematically showing the configuration of the scroll fluid machine according to the embodiment.
  • FIG. 3 is an exploded perspective view schematically showing the configuration of the scroll fluid machine according to the embodiment.
  • FIG. 4 is a perspective sectional view schematically showing the configuration of the scroll fluid machine according to the embodiment.
  • the first scroll unit 10A and the second scroll unit 10B in which the first fixed disk 30 and the second fixed disk 40 are combined with the orbiting disk 20 interposed therebetween are combined. May be provided in the turning axis Z direction of the turning disk 20. That is, in some embodiments, it is possible to expand to a configuration having a plurality of scroll units 10 (two or more stages).
  • the capacity of the expansion chamber 52 or the compression chamber 50 required according to the desired output is not increased in the radial direction. It is possible to realize the scroll fluid machine 1 having a compact configuration, which can be arbitrarily adjusted depending on the number of scroll units 10 provided in the orbiting axis Z direction.
  • FIG. 5 is a sectional view schematically showing the configuration of the scroll fluid machine according to the embodiment.
  • the first fixed disk 30 or the second fixed disk 40 of the first scroll unit 10A is the first fixed disk 30 or the second fixed disk 40 of the second scroll unit 10B. May be integrally configured with.
  • first scroll unit 10A and the second scroll unit 10B may be configured symmetrically with respect to the joint surface 12 of the first scroll unit 10A and the second scroll unit 10B (FIG. 2 to FIG. 2). (See FIG. 4).
  • the respective units may be combined so that the compression chamber and the expansion chamber are arranged in the same order in the swivel axis Z direction toward one side and the other side with the joint surface 12 as a reference.
  • an even number of scroll units 10 may be arranged in the orbiting axis Z direction.
  • the joint surface 12 is in the Z-axis direction of the integrally formed fixed disk. It means the plane passing through the midpoint of the thickness (see FIG. 5).
  • the two scroll units 10 are arranged in the direction of the orbiting axis Z. They are arranged symmetrically with respect to the joint surface 12. Therefore, for example, it is possible to realize the scroll fluid machine 1 having a compact configuration in which the scroll fluid machine 1 is balanced with respect to the load caused by the expansion of the compressed fluid F and the orbiting operation of the orbiting disk 20.
  • first scroll unit 10A and the second scroll unit 10B may be combined so that the compression chamber 50 is located closer to the joint surface 12 than the expansion chamber 52 (FIGS. (See FIG. 5).
  • the compression chamber 50 is arranged closer to the joint surface 12 than the expansion chamber 52, in each scroll unit 10, the compression chamber 50 is provided on the inside with respect to the joint surface 12 and the expansion chamber 52 is on the outside. Are combined so as to be arranged in. As a result, the expansion chamber 52 can be easily accessed from the outside, and thus the expanded fluid can be easily taken out.
  • the scroll fluid machine 1 may include, between the first scroll unit 10A and the second scroll unit 10B, the cooling unit 60 including the refrigerant flow passage 62 through which the refrigerant 64 can pass ( (See FIGS. 4 and 5).
  • the scroll fluid machine 1 includes the cooling unit 60
  • the refrigerant is provided between the scroll units 10.
  • a cooling unit 60 including a coolant channel 62 through which 64 can pass is provided. Since the cooling unit 60 is provided between the scroll units 10, two scroll units 10 adjacent to each other can be cooled at the same time. Further, the refrigerant 64 that has recovered the amount of heat by cooling the two scroll units 10 can also be used by taking it out to the outside.
  • the coolant flow path 62 may be provided in at least one of the first fixed disk 30 and the second fixed disk 40 (see, for example, FIGS. 4 and 5). Further, the cooling unit 60 may include a transportation unit such as a pump for transporting the refrigerant 64.
  • the swivel disc 20 is configured to be swivelable relative to the first fixed disc 30 and the second fixed disc 40 by a plurality of support mechanisms 70 arranged at different positions along the circumferential direction. (See FIGS. 2 to 4).
  • the structure for swiveling the swivel disc 20 while preventing its rotation is realized in a compact manner. can do.
  • the support mechanism 70 may include a shaft 72 coupled to the swivel disc 20 and extending in the swivel axis Z direction, and a bearing 74 rotatably supporting the shaft 72 (FIGS. (See FIG. 4).
  • the swing disk 20 is swingably supported by the bearing 74 via the shaft 72 that is rotatably supported by the bearing 74.
  • the bearing 74 capable of bearing the load in the radial direction and the thrust direction that acts on the shaft 72, it is possible to realize the smooth turning operation of the turning disk 20.
  • the bearing 74 supporting the shaft 72 connected to the swivel disc 20 may be the bearing 74 capable of bearing the load in the radial direction and the thrust direction as described above.
  • the orbiting scroll (orbiting disc 20) of the first scroll unit 10A and the orbiting scroll (orbiting disc 20) of the second scroll unit 10B may be operated with a phase shift of 180 degrees. By doing so, it is possible to reduce the deviation of the vibration and the load due to the turning operation of the turning disk 20 in the direction orthogonal to the turning axis Z direction.
  • FIG. 6 is a schematic diagram schematically showing the configuration of the scroll fluid machine according to the embodiment. As shown in FIG. 6, in some embodiments, the swivel disc 20 may have different heights for the first wrap 24 and the second wrap 28.
  • the volume of the expansion chamber 52 to be adjusted can be arbitrarily adjusted with a simple configuration. For example, when the size of the orbiting disk 20 is restricted in the orbiting axis Z direction, the entire scroll fluid machine 1 does not need to change the size in the orbiting axis Z direction, and if necessary, the compression chamber 50 and the expansion chamber 52 The volume ratio of can be arbitrarily changed.
  • the third wrap 32 that forms the compression chamber with the first wrap 24 and the fourth wrap 42 that forms the expansion chamber with the second wrap 28 also have different heights according to the heights of the wraps that mesh with each other. You may have.
  • FIG. 7 is a figure which shows schematically the structure of the scroll fluid machine which concerns on one Embodiment.
  • at least one of the first fixed disk 30 and the second fixed disk 40 may include a heat dissipation fin 80 that can contact the outside air.
  • the shape, height, number or arrangement of the radiation fins 80 can be set arbitrarily.
  • the heat dissipation fin 80 can increase the contact area for heat exchange with the outside air. It is possible to improve the cooling efficiency when the scroll fluid machine 1 is used as a power source.
  • the scroll fluid machine 1 may further include a communication passage 54 that connects the compression chamber 50 and the expansion chamber 52 (see FIGS. 1, 5, and 6).
  • the flow of the fluid F through the communication passage 54 may be from the compression chamber 50 to the expansion chamber 52 or from the expansion chamber 52 to the compression chamber 50.
  • the compression chamber 50 and the expansion chamber 52 that can communicate fluids with each other can be realized with a compact structure.
  • the scroll fluid machine 1 may be configured such that the fluid F introduced into the expansion chamber 52 is compressed in the compression chamber 50 (see FIGS. 1, 3, 5, and 6). ).
  • the scroll fluid machine 1 may include a spark plug 82 arranged in the expansion chamber 52 (see FIG. 4).
  • the compressed fluid F may contain combustible fuel.
  • natural gas eg, methane gas
  • the spark plug 82 may be configured to ignite the high-pressure fuel at an appropriate timing after the compressed fluid F containing the combustible fuel is introduced into the expansion chamber 52.
  • the scroll fluid machine 1 according to some embodiments of the present disclosure can thus function as a so-called internal combustion engine (engine) that can ignite and burn or explode fuel, air, or a mixture thereof (air mixture). .
  • an internal combustion scroll rotation motor may be configured to output output torque by generating high temperature gas by expanding and igniting the high temperature gas by igniting and burning the fluid F by the spark plug 82 in the expansion chamber 52.
  • the fluid F including the compressed fluid F (for example, the air-fuel mixture) containing the combustible fuel is ignited and burned in the expansion chamber 52, so that the high temperature is achieved.
  • the output torque can be output by generating gas and expanding the high temperature gas.
  • the scroll fluid machine 1 may include a supply passage 90 for supplying the fluid F to the compression chamber 50 and a discharge passage 92 for discharging the fluid F from the expansion chamber 52. Good (see FIGS. 1, 5 and 6).
  • the scroll fluid machine 1 including the compressor and the expander and capable of smoothly supplying and discharging the fluid F can be realized with a compact configuration.
  • the present invention is not limited to the above-described embodiment, and includes a form in which the above-described embodiment is modified and a form in which these forms are appropriately combined.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

L'invention concerne une machine à fluide à spirales qui est destinée à comprimer ou à dilater un fluide contenant un mélange air-carburant gazeux et qui est pourvue: d'un disque rotatif comprenant une première enveloppe en forme de spirale reposant sur une première surface et une seconde enveloppe en forme de spirale reposant sur une seconde surface opposée à la première surface; d'un premier disque fixe comprenant une troisième enveloppe en forme de spirale reposant sur une surface faisant face à la première surface susmentionnée, la troisième enveloppe en forme de spirale formant conjointement avec la première enveloppe une chambre de compression; et un second disque fixe comprenant une quatrième enveloppe en forme de spirale reposant sur une surface faisant face à la seconde surface, la quatrième enveloppe en forme de spirale formant conjointement avec la seconde enveloppe une chambre d'expansion.
PCT/JP2018/041360 2018-11-07 2018-11-07 Machine à fluide à spirales WO2020095386A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/JP2018/041360 WO2020095386A1 (fr) 2018-11-07 2018-11-07 Machine à fluide à spirales

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/041360 WO2020095386A1 (fr) 2018-11-07 2018-11-07 Machine à fluide à spirales

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WO2020095386A1 true WO2020095386A1 (fr) 2020-05-14

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PCT/JP2018/041360 WO2020095386A1 (fr) 2018-11-07 2018-11-07 Machine à fluide à spirales

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3011694A (en) * 1958-09-12 1961-12-05 Alsacienne Constr Meca Encapsuling device for expanders, compressors or the like
JPS5951130A (ja) * 1982-09-17 1984-03-24 Ebara Corp 内燃機関
US5094205A (en) * 1989-10-30 1992-03-10 Billheimer James C Scroll-type engine
JPH08500664A (ja) * 1992-09-02 1996-01-23 アーサー・デイ・リトル・インコーポレーテツド 携帯用内蔵電力及び冷却システム
JP2001355588A (ja) * 2000-06-12 2001-12-26 Hitachi Ltd 動力回収形スクロール流体機械及びそれを用いる燃料電池システム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3011694A (en) * 1958-09-12 1961-12-05 Alsacienne Constr Meca Encapsuling device for expanders, compressors or the like
JPS5951130A (ja) * 1982-09-17 1984-03-24 Ebara Corp 内燃機関
US5094205A (en) * 1989-10-30 1992-03-10 Billheimer James C Scroll-type engine
JPH08500664A (ja) * 1992-09-02 1996-01-23 アーサー・デイ・リトル・インコーポレーテツド 携帯用内蔵電力及び冷却システム
JP2001355588A (ja) * 2000-06-12 2001-12-26 Hitachi Ltd 動力回収形スクロール流体機械及びそれを用いる燃料電池システム

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