WO2020018067A1 - Ensemble de décharge de soupape - Google Patents

Ensemble de décharge de soupape Download PDF

Info

Publication number
WO2020018067A1
WO2020018067A1 PCT/US2018/042271 US2018042271W WO2020018067A1 WO 2020018067 A1 WO2020018067 A1 WO 2020018067A1 US 2018042271 W US2018042271 W US 2018042271W WO 2020018067 A1 WO2020018067 A1 WO 2020018067A1
Authority
WO
WIPO (PCT)
Prior art keywords
unloader assembly
valve unloader
struts
support structure
valve
Prior art date
Application number
PCT/US2018/042271
Other languages
English (en)
Inventor
William C. Maier
Original Assignee
Dresser-Rand Company
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 Dresser-Rand Company filed Critical Dresser-Rand Company
Priority to PCT/US2018/042271 priority Critical patent/WO2020018067A1/fr
Publication of WO2020018067A1 publication Critical patent/WO2020018067A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/08—Actuation of distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1053—Adaptations or arrangements of distribution members the members being Hoerbigen valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing
    • F04B49/243—Bypassing by keeping open the inlet valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1097—Valves; Arrangement of valves with means for lifting the closure member for pump cleaning purposes

Definitions

  • Disclosed embodiments are generally related to reciprocating
  • FIG. 1 is an isometric, generally bottom view of one non-limiting
  • FIG. 2 is an isometric, generally top view of the disclosed valve unioader assembly shown in FIG 1
  • FIG 3 is a zoomed-ln, fragmentary isometric view of a disclosed strut and actuating pins associated with the strut, which are non-limiting examples of structures that may be components of a disclosed valve unioader assembly.
  • FIG. 4 is a zoomed-in, fragmentary isometric view of a disclosed strut and actuating pins associated with the strut, depicting non-limiting examples of aerodynamicaily streamlined bodies of the foregoing structures as may be arranged relative to example flow segments of a process fluid passing by such aerodynamicaily streamlined bodies.
  • FIG. 5 is a side view' of a disclosed branched support structure, such as may be configured as a lattice structure, which is one non-limiting example of another component that may be part of a disclosed valve unloader assembly.
  • FIG. 8 is an isometric, generally bottom view of a disclosed branched
  • support structure such as may be configured as a fractal structure, which is another non-limiting example of the branched support structure
  • FIG. 7 is an isometric, generally bottom view of another non-limiting embodiment
  • FIG 8 is a flow chart listing certain non-limiting steps that may be used in a disclosed method for manufacturing disclosed valve unloader
  • FIG 9 is a flow' chart listing further non-limiting steps that may be used in the disclosed method for manufacturing disclosed valve unioader assemblies.
  • FIG 10 is a flow sequence in connection with the disclosed method for manufacturing disclosed valve unioader assemblies. [0017] DETAILED DESCRIPTION
  • valve unloader assemblies As may be used in reciprocating compressors. These prior art designs typically involve a respective single pin or finger for each valve unloaded (e.g., a pin or finger dedicated to actuate an individual valve poppet unioader) and, consequently, these prior art designs typically involve a relatively large number of pins or fingers to actuate a
  • the relatively large number of pins or fingers and/or the generally blunt (non-aerodynamicai!y streamlined) cross-sectional shape of the pins or fingers can lead to relatively large pressure losses in a process fluid (e.g., a gas or gaseous mixture) being compressed by the compressor since the pin or fingers are physically present in the path of the process fluid.
  • a process fluid e.g., a gas or gaseous mixture
  • a concomitant issue is the introduction of turbulence (e.g , vortexes) in the process fluid due to the presence of the pins or fingers in the path of the process fluid.
  • turbulence e.g , vortexes
  • the present inventor proposes an innovative valve unioader assembly effective to provide a reliable and relatively low- cost technical solution to solve, as elaborated in greater detail below, at least the issues mentioned above.
  • traditional manufacturing techniques such as casting, stamping, etc.
  • traditional manufacturing techniques may not be necessarily conducive to a cost-effective and/or realizable manufacture of at least certain disclosed valve unloader assembly configurations that may be involved to efficiently implement the foregoing approaches.
  • traditional manufacturing techniques tend to fail short from consistently limiting manufacturing variability; and may also fail short from cost- effectively and reliably producing the relatively complex geometries and features that may be involved in disclosed valve unloader assemblies.
  • present inventor further proposes use of three-dimensional (3D)
  • AM Printing/Additive Manufacturing
  • SIM selective laser melting
  • DMLS direct metal laser sintering
  • EBS electron beam sintering
  • E8M electron beam melting
  • a disclosed valve unloader assembly may comprise a unitized valve unloader assembly.
  • unitized in the context of this application, unless otherwise stated, refers to a structure which is formed as a single piece (e.g., monolithic construction) using a rapid manufacturing technology, such as without limitation, 3D
  • FIGs 1 and 2 are respective isometric views (FIG. 1 generally shows a bottom view and FIG. 2 shows a generally top view) of a disclosed valve unloader assembly 10.
  • valve unloader assembly 10 may include a branched support structure 11 , such as an annular structure, that may be (e.g., centrally) disposed about a
  • valve unloader assembly 10 further comprises
  • the plurality of struts 14 includes a plurality of struts 14 having respective proximate ends 12 connected to a face 15 of branched support structure 11.
  • the plurality of struts 14 may be arranged to extend away from face 15 of branched support structure 11 along longitudinal axis 17 of valve unloader assembly 10 between the respective proximate ends 12 of the plurality of struts 14 and respective distal ends 13 of the plurality of struts 14.
  • a plurality of actuating pins 16 extends from a respective distal end 13 of a respective strut of the plurality of struts 14.
  • the figures illustrate three actuating pins 16 associated with a given strut. It will be appreciated that this should be construed in an example sense and should not be construed in a limiting sense since the number of actuating pins may be readily tailored based on the needs of a given application. This is a feature advantageous over prior art designs that typically involve individual elongated pins or fingers for each valve unloader, whereas disclosed embodiments can involve groups of several actuating pins per a given strut.
  • This feature is effective to reduce the total weight of a disclosed valve loader assembly, presuming a comparable number of valve poppet unloaders being actuated by the valve loader assembly. This feature also reduces the pressure loss commonly associated with prior art unloaders by reducing in disclosed unloaders the surface area exposed to the process fluid.
  • FIG. 3 is a zoomed-in, fragmentary isometric view of a disclosed strut 14 and actuating pins 16 associated with the strut.
  • FIG. 3 further illustrates a valve plate 18, where, for example, respective valve poppets (not shown) within valve plate 18, would be engaged (e.g , pushed downwardly) by the tips of respective actuating pins 16.
  • each one of the three separate actuating pins 18 associated with strut 14 would actuate a respective valve poppet.
  • FIG. 4 is a zoomed-in, fragmentary isometric view of a disclosed strut 14 and actuating pins 16 associated with the strut depicting non-limiting examples of respective aerodynamically streamlined bodies (e.g., airfoil shape) of strut 14 and/or actuating pins 16 relative to respective flow segments of the process fluid passing by such streamlined bodies.
  • flow segment 20 schematically represents a flow segment flowing transversely relative to longitudinal axis 17
  • flow segment 22 schematically represents a flow segment flowing along longitudinal axis 17 of the strut.
  • a leading edge of the airfoil is positioned to first meet the arriving flow of the process flow while the trailing edge of the airfoil is positioned downstream of the leading edge and defines the last contact area between the airfoil and the passing fluid process.
  • FIG. 5 is a side view of a disclosed branched support structure 11 , such as a lattice structure 30, (e.g., a girded lattice structure) configured to support struts 14
  • lattice structure 30 includes a face 32 that defines an aerodynamically streamlined surface (e.g., a curvilinear surface, conical shaped surface, tear-shaped surface, etc.) that may be aerodynamically streamlined to reduce drag using, for example, computational fluid dynamics (CFD) techniques relative to the flow of process fluid passing along the aerodynamically streamlined surface.
  • CFD computational fluid dynamics
  • FIG. 8 is an isometric, generally bottom view of a disclosed branched support
  • branched support structure 11 such as a fractal structure 36 configured to support struts 14.
  • branched support structure 11 may be configured as a fractal structure 36, which is conceptually analogous to dendriform and arboreal (tree-like) structures that commonly appear in nature, e.g., biological, physical and mechanical systems.
  • fractal structure 36 may include face 32 that defines an
  • each of the embodiments disclosed in the context of FIGs 5 and 6 is effective to further reduce the total weight of a disclosed valve loader assembly without compromising structural integrity.
  • FIG. 7 is an isometric, generally bottom view of another non-limiting embodiment of a disclosed valve unloader assembly where a plurality of actuating pins 42 may be constructed to form a unitary structure with a mounting plate 40.
  • actuating pins 42 and mounting plate 40 can include any of the features described above in the context of the preceding embodiments, such as aerodynamical ly streamlined bodies regarding actuating pins 42, aerodynamically streamlined surface regarding mounting plate 40, hollow actuating pins, etc.
  • any of the embodiments described in the context of FIGs 1 -7 may (hut need not) be manufactured using additive manufacturing techniques.
  • disclosed embodiments provide a cost-effective and reliable technical solution leading to superior compressor performance.
  • pressure drop in disclosed embodiments may be at least an order of magnitude less than that of prior art designs involving generally blunt cross section pin and plate configurations due to the aerodynamically flow-optimized arrangement featured In disclosed embodiments.
  • a substantial reduction in process fluid flow turbulence can be achieved due to reduction of vortex shedding intensity along the aerodynamically streamlined bodies and/or surfaces. This could advantageously lead to increased valve poppet life and more stable compressor operation.
  • minimization of total weight e.g., without limitation approximately 1/5 of a comparable prior art valve unloader assembly
  • computerized-design can allow optimal use of AM technology.
  • FIG. 8 is a flow chart listing certain steps that may be used in a method for manufacturing disclosed valve unloader assemblies, as may be used in a reciprocating compressor.
  • step 202 allows generating a computer-readable three-dimensional (3D) model, such as a computer aided design (CAD) model, of a disclosed valve unloader assembly.
  • 3D three-dimensional
  • CAD computer aided design
  • the model defines a digital representation of the valve unloader assembly, as described above in the context of the preceding figures.
  • step 204 Prior to return step 206, step 204 allows manufacturing the valve unSoader assembly using an additive manufacturing technique in accordance with the generated three-dimensional model.
  • additive manufacturing techniques may include laser sintering, selective laser melting (SLM), direct metal laser sintering (DMLS), electron beam sintering (EBS), electron beam melting (EBM), etc. It will be appreciated that once a model has been generated, or otherwise available (e.g., loaded into a 3D digital printer, or loaded into a processor that controls the additive manufacturing technique), then manufacturing step 204 need not be preceded by a generating step 202.
  • valve unloader assembly or one or more components of the valve unioader assembly, e.g., branched support structure, respective struts and/or contact pins, etc., may be formed as respective unitized structures using additive manufacturing in accordance with the generated three-dimensional model.
  • FIG. 9 is a flow chart listing further steps that may be used in the disclosed method for manufacturing the valve unloader assembly.
  • manufacturing step 204 may include the following: after a start step 208, step 210 allows processing the model in a processor into a plurality of slices of data that define respective cross-sectional layers of the ducting arrangement. As described in step 212, at least some of the plurality of slices define cne cr more voids (e.g , respective voids that may ⁇ be used to form hollow portions of valve unloader assembly, such as hollow struts and/or actuating pins) within at least some of the respective cross-sectional layers of the valve unloader assembly.
  • step 214 Prior to return step 216, step 214 allows successively forming each layer of the valve unloader assembly by fusing a metallic powder using a suitable source of energy, such as without limitation, lasing energy or electron beam energy.
  • FIG. 10 is a flow sequence in connection with a disclosed method for
  • a computer-readable three-dimensional (3D) model 224 such as a computer aided design (CAD) model, of the 3D object may be processed in a processor 226, where a slicing module 228 converts model 224 into a plurality of slice files (e g., 2D data files) that defines respective cross- sectional layers of the 3D object.
  • Processor 228 may be configured to control an additive manufacturing technique 230 used to make 3D object 232

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Compressor (AREA)

Abstract

L'invention concerne un ensemble de décharge de soupape (10) pour un compresseur alternatif et un procédé de fabrication de l'ensemble de décharge de soupape. Une structure de support ramifiée (11) peut être disposée autour d'un axe longitudinal de l'ensemble de décharge de soupape. Plusieurs entretoises (14) peuvent être reliées à une face de la structure de support ramifiée, et plusieurs broches d'actionnement (16) se prolongent à partir d'une extrémité distale correspondante d'une entretoise correspondante choisie parmi lesdites entretoises. Des technologies d'impression tridimensionnelle (3D)/de fabrication additive (FA) peuvent permettre de fabriquer à peu de frais les ensembles de décharge de soupape selon l'invention, susceptibles de présenter des formes complexes et des caractéristiques efficaces pour réduire les pertes de pression et/ou la formation de tourbillons dans un fluide de traitement comprimé par le compresseur alternatif.
PCT/US2018/042271 2018-07-16 2018-07-16 Ensemble de décharge de soupape WO2020018067A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2018/042271 WO2020018067A1 (fr) 2018-07-16 2018-07-16 Ensemble de décharge de soupape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2018/042271 WO2020018067A1 (fr) 2018-07-16 2018-07-16 Ensemble de décharge de soupape

Publications (1)

Publication Number Publication Date
WO2020018067A1 true WO2020018067A1 (fr) 2020-01-23

Family

ID=63108631

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/042271 WO2020018067A1 (fr) 2018-07-16 2018-07-16 Ensemble de décharge de soupape

Country Status (1)

Country Link
WO (1) WO2020018067A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220234013A1 (en) * 2017-04-21 2022-07-28 Commonwealth Scientific And Industrial Research Organisation Flow distribution system
US11598433B2 (en) * 2018-10-09 2023-03-07 Burckhardt Compression Ag Poppet valve and method of manufacturing valve components of a poppet valve

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2026300A (en) * 1932-01-15 1935-12-31 Sullivan Machinery Co Air compressor
US4869289A (en) * 1986-04-16 1989-09-26 Hoerbiger Ventilwerke Aktiengesellschaft Adjustable compressor valve which can accommodate changing operating conditions in the compressor to which it is attached
US5025830A (en) 1990-08-16 1991-06-25 Dresser-Rand Company Valve unloader finger assembly, a method of forming the same, a kit, and a plate therefor
US5642753A (en) 1996-07-01 1997-07-01 Dresser-Rand Company Valve unloader assembly
US20160319809A1 (en) * 2013-12-17 2016-11-03 Kaeser Kompressoren Se Compressor
US20170182561A1 (en) * 2015-12-23 2017-06-29 Emerson Climate Technologies, Inc. High-strength light-weight lattice-cored additive manufactured compressor components
DE102016220136A1 (de) * 2016-10-14 2018-04-19 Mahle International Gmbh Verfahren zum Herstellen eines Gegenstandes mittels Laserschmelzen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2026300A (en) * 1932-01-15 1935-12-31 Sullivan Machinery Co Air compressor
US4869289A (en) * 1986-04-16 1989-09-26 Hoerbiger Ventilwerke Aktiengesellschaft Adjustable compressor valve which can accommodate changing operating conditions in the compressor to which it is attached
US5025830A (en) 1990-08-16 1991-06-25 Dresser-Rand Company Valve unloader finger assembly, a method of forming the same, a kit, and a plate therefor
US5642753A (en) 1996-07-01 1997-07-01 Dresser-Rand Company Valve unloader assembly
US20160319809A1 (en) * 2013-12-17 2016-11-03 Kaeser Kompressoren Se Compressor
US20170182561A1 (en) * 2015-12-23 2017-06-29 Emerson Climate Technologies, Inc. High-strength light-weight lattice-cored additive manufactured compressor components
DE102016220136A1 (de) * 2016-10-14 2018-04-19 Mahle International Gmbh Verfahren zum Herstellen eines Gegenstandes mittels Laserschmelzen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GIBSON I.; STACKER B.; ROSEN D.: "Additive Manufacturing Technologies, 3D Printing, Rapid Prototyping, and Direct Digital Manufacturing", 2010, SPRINGER

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220234013A1 (en) * 2017-04-21 2022-07-28 Commonwealth Scientific And Industrial Research Organisation Flow distribution system
US11660577B2 (en) * 2017-04-21 2023-05-30 Commonwealth Scientific And Industrial Research Organisation Fractal flow distribution system
US11598433B2 (en) * 2018-10-09 2023-03-07 Burckhardt Compression Ag Poppet valve and method of manufacturing valve components of a poppet valve

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