WO2014047536A1 - Appareil d'entraînement de décompression - Google Patents

Appareil d'entraînement de décompression Download PDF

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Publication number
WO2014047536A1
WO2014047536A1 PCT/US2013/061137 US2013061137W WO2014047536A1 WO 2014047536 A1 WO2014047536 A1 WO 2014047536A1 US 2013061137 W US2013061137 W US 2013061137W WO 2014047536 A1 WO2014047536 A1 WO 2014047536A1
Authority
WO
WIPO (PCT)
Prior art keywords
scroll
crankshaft
generator
expander
oil
Prior art date
Application number
PCT/US2013/061137
Other languages
English (en)
Inventor
Jeffrey Randall SWEET
Original Assignee
Sweet Jeffrey Randall
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 Sweet Jeffrey Randall filed Critical Sweet Jeffrey Randall
Publication of WO2014047536A1 publication Critical patent/WO2014047536A1/fr

Links

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
    • F01C1/0207—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 both members having co-operating elements in spiral form
    • F01C1/0215—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 both members having co-operating elements in spiral form where only one member is moving
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/005—Axial sealings for working fluid

Definitions

  • the present invention relates, generally, to scroll compressors and, more particularly, scroll compressors whose design has been modified to perform work by decompressing pressurized gas, gases or fluids.
  • This invention relates to a scroll fluid apparatus, and, more particularly, to a scroll compressor, a scroll expander or decompressor, a scroll pump, etc.
  • a scroll fluid apparatus comprises two scroll members each having an end plate and an upstanding wrap of a vortical form disposed on a surface of the end plate, with the two scroll members being arranged such that the wraps are in meshing engagement with each other.
  • One of the two scroll members is capable of moving in orbiting movement with respect to the other scroll member while the one scroll member is prevented from rotating on its own axis whereby a gas is compressed or expanded to produce a motive force or transfer a liquid.
  • a decompression driver produces mechanical work by taking a high- pressure refrigerant, a pressurized gas, a combination of pressurized gases, fluid media under pressure, from a high-pressure state to a low-pressure state and produce mechanical work.
  • the resulting mechanical work may be used to generate electricity, pump any fluid or gas or any other mechanical work desired.
  • a scroll compressor newly-manufactured in accordance with the present invention, or a modified off-the-shelf scroll compressor may function as a decompressor in performing such a task.
  • the scroll compressor is originally designed to compress a low-pressure gas in order to obtain a high-pressure gas.
  • the unique scroll compressor of the present invention works in reverse of this function: a fluid under pressure or compressed gas is used to decompress through a modified scroll driver, thereby generating electricity.
  • Figures 1, 2 and 3 show different aspects of a scroll compressor modified in accordance with the present invention to perform work by decompressing a pressurized gas, pressurized gases or pressurized fluids, in accordance with various embodiments.
  • Figure 4 is flowchart showing a method for generating electricity from a compressed fluid, in accordance with various embodiments.
  • the preferred scroll compressor operating in reverse can be used to perform mechanical work from the expansion of a fluid, compressed air or gas.
  • the resulting mechanical work may be used to generate electricity, pump any fluid or gas or any other mechanical work desired.
  • An example of the working principle that applies is the following: if a given scroll compressor consumes 35KW or 43.4HP when compressing, when de-compressing approximately 35KW or 43.4HP will be available to produce electricity or mechanical work.
  • FIGS 1, 2 and 3 show different aspects 100, 200, and 300 of a scroll compressor modified in accordance with the present invention to perform work by decompressing a pressurized gas, pressurized gases or pressurized fluids, in accordance with various embodiments.
  • the top scroll or scroll head 1 is fixed or bolted in place.
  • the scroll head 1 is modified to receive a pipe 17 directly into the inlet thereof.
  • the pipe 17 is secured in place so as not to leak incoming high- pressure fluid or gas that enters the center of the scroll head 1.
  • the bottom scroll 2 which moves or oscillates, rides on a pressurized oil bearing which receives injected oil at 13 or 15.
  • Quality high-speed bearings which for example may be needle bearings, minimize friction losses and are lubricated with injected oil at 13 or 15, which is fed through a center hole in the crankshaft 20.
  • a high-speed tapered bearing 4 which supports the crankshaft 20, is installed within the thrust plate oil reservoir 16.
  • a fixed or flexible shaft coupling 6 couples a generator 10 to the crankshaft 20.
  • a generator frame support structure 7 aligns the shafts and supports the generator within the entire assembly.
  • the generator frame support structure 7 is mounted above the service flange 8.
  • a service access flange 8 which is equipped with a gasket or O-ring, provides assembly and maintenance access.
  • the generator frame 9 is supported by the upper support structure 7 and provides accurate alignment of the generator 10 with the crankshaft 20 accurately aligned. All generator bearings may receive injected lubrication via the joined shafts with lubrication holes and ports running through the shafts.
  • the generator is either an induction type device or a highly-efficient permanent magnet type generator.
  • the oil pressure and flow is regulated through a first pressure regulating valve (PRV) 27.
  • PRV pressure regulating valve
  • the exhaust is located directly at the scroll set 1 and 2 exhaust area, where the lowest pressure is exhausted via decompression through the scroll set 1 and 2.
  • High-pressure oil injection at a higher pressure than oil injection point 13 is regulated by a second PRV 28.
  • a certain volume and pressure is injected at this point to lubricate the scrolls for endurance but most importantly assist with optimizing the scroll tip sealing for greater decompression performance to achieve the highest mechanical work possible.
  • the thrust plate oil reservoir is sealed to hold a volume of pressurized oil, for system optimization and enhancement.
  • the high-pressure inlet pipe 17 is located directly at the center of the scrolls, secured to the fixed scroll head 1.
  • the inlet pipe may be welded or sealed in any manner so it does not leak into the low pressure area.
  • the oil return reservoir holds enough volume of oil to allow settling time when air fluid or vapor may be mixed during the exhausting 14 and cooling 11 processes.
  • the settled oil then provides adequate net positive suction head (NPSH) for the oil pump 26.
  • NPSH net positive suction head
  • a site glass insures adequate oil volume held in the oil reservoir 18.
  • a low oil safety switch may be installed to protect the de-compressor.
  • the crankshaft 20 with oil distributer ties all moving parts together, flows and distributes oil to all moving parts and is accurately aligned.
  • the inner stator is fixed in place and permanently mounted.
  • the rotor is attached to the crankshaft 20 and via rotational motion with induction to the stator 21 may serve as a motor and or a generator with run- capacitors. Wires through the shell carry electrical current utilizing run capacitors, generated by motion between the rotor 22 and the stator 21.
  • the motor may be used to start the decompression process by using electricity from a given source. When at adequate RPM and load a transfer switch may switch on the fly to allow run capacitors to induce the generating field, transferring the motor to a generator and back to a motor as desired.
  • a tapered support bearing in support housing 25 is installed at the bottom of the crankshaft 20 just above the service flange. This tapered support bearing and support housing 25 supports the weight and rotation of the crankshaft 20.
  • the support housing centers the support bearing 24 and crankshaft 20 to accurately align and support the entire bearing and shaft drive train.
  • a high pressure oil pump maintains high pressure oil supply as required for the scroll set 1 and 2 inlet, along with bearings 3, 4, 5, 24 and the thrust plate 16.
  • a PRV pressure regulating valve
  • a PRV is also used to supply oil pressure as needed to lubricate and assist the scroll tip sealing during decompression.
  • Bearing support frame and plane bearing lubricated via oil injection at 13 and pressure down the hole in the center of the crankshaft 20.
  • the bottom end of the crankshaft 20 is plugged or sealed to allow high pressure feed to all the bearings and thrust plate. Sealed access to the bottom of the crankshaft 20 is provided at the bottom of the housing.
  • Figure 4 is flowchart showing a method 400 for generating electricity from a compressed fluid, in accordance with various embodiments.
  • step 410 of method 400 a compressed fluid is received in a fixed scroll head.
  • step 420 a bottom scroll is oscillated with respect to the fixed scroll head as the compressed fluid is expanded.
  • step 430 a crankshaft connected to the bottom scroll is turned through the oscillation of the bottom scroll.
  • step 440 generate electricity is generated by coupling a generator to the crankshaft.
  • the specification may have presented a method and/or process as a particular sequence of steps.
  • the method or process should not be limited to the particular sequence of steps described.
  • other sequences of steps may be possible. Therefore, the particular order of the steps set forth in the specification should not be construed as limitations on the claims.
  • the claims directed to the method and/or process should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the various embodiments.

Landscapes

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

Abstract

Appareil d'entraînement de décompression produisant un travail mécanique en faisant passer un fluide frigorigène à pression élevée, un gaz sous pression, une combinaison de gaz sous pression, un fluide ou un milieu sous pression, d'un état haute-pression à un état basse-pression et produit un travail mécanique. Le travail mécanique obtenu peut être utilisé pour produire de l'électricité, pour pomper tout fluide ou gaz ou tout autre travail mécanique souhaité. Un compresseur à spirale nouvellement fabriqué conformément à la présente invention, ou un compresseur à spirale standard modifié, peut servir de décompresseur dans la réalisation d'une telle tâche. Le compresseur à spirale est à l'origine conçu pour comprimer un gaz basse-pression afin d'obtenir un gaz haute-pression. L'unique compresseur à spirale de la présente invention fonctionne à l'inverse de cette fonction : un fluide sous pression ou un gaz comprimé est utilisé pour décomprimer par le biais d'un appareil d'entraînement à spirale modifié, ce qui permet de produire de l'électricité.
PCT/US2013/061137 2012-09-23 2013-09-23 Appareil d'entraînement de décompression WO2014047536A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261704497P 2012-09-23 2012-09-23
US61/704,497 2012-09-23

Publications (1)

Publication Number Publication Date
WO2014047536A1 true WO2014047536A1 (fr) 2014-03-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2013/061137 WO2014047536A1 (fr) 2012-09-23 2013-09-23 Appareil d'entraînement de décompression

Country Status (1)

Country Link
WO (1) WO2014047536A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3822451A4 (fr) * 2018-07-12 2022-04-27 Emerson Climate Technologies (Suzhou) Co., Ltd. Dispositif d'expansion et système de circulation de fluide le comprenant

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040172945A1 (en) * 2003-03-05 2004-09-09 Anest Iwata Corporation Single-winding multi-stage scroll expander
JP2006125340A (ja) * 2004-10-29 2006-05-18 Denso Corp 複合流体機械およびそれを用いた冷凍装置
US20090257900A1 (en) * 2008-04-09 2009-10-15 Hamilton Sundstrand Corporation Shaft coupling for scroll compressor
EP2128384A1 (fr) * 2007-01-15 2009-12-02 Panasonic Corporation Compresseur à détendeur intégré
JP2011012633A (ja) * 2009-07-03 2011-01-20 Daikin Industries Ltd スクロール圧縮機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040172945A1 (en) * 2003-03-05 2004-09-09 Anest Iwata Corporation Single-winding multi-stage scroll expander
JP2006125340A (ja) * 2004-10-29 2006-05-18 Denso Corp 複合流体機械およびそれを用いた冷凍装置
EP2128384A1 (fr) * 2007-01-15 2009-12-02 Panasonic Corporation Compresseur à détendeur intégré
US20090257900A1 (en) * 2008-04-09 2009-10-15 Hamilton Sundstrand Corporation Shaft coupling for scroll compressor
JP2011012633A (ja) * 2009-07-03 2011-01-20 Daikin Industries Ltd スクロール圧縮機

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3822451A4 (fr) * 2018-07-12 2022-04-27 Emerson Climate Technologies (Suzhou) Co., Ltd. Dispositif d'expansion et système de circulation de fluide le comprenant
US11519269B2 (en) 2018-07-12 2022-12-06 Emerson Climate Technologies (Suzhou) Co., Ltd. Expander and fluid circulation system comprising same

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