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EP2711550B1 - Abflussentlüftung für petrochemische/chemische Flüssigkeitspumpvorrichtungen und Herstellungsverfahren dafür - Google Patents

Abflussentlüftung für petrochemische/chemische Flüssigkeitspumpvorrichtungen und Herstellungsverfahren dafür Download PDF

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Publication number
EP2711550B1
EP2711550B1 EP13185843.3A EP13185843A EP2711550B1 EP 2711550 B1 EP2711550 B1 EP 2711550B1 EP 13185843 A EP13185843 A EP 13185843A EP 2711550 B1 EP2711550 B1 EP 2711550B1
Authority
EP
European Patent Office
Prior art keywords
drain
pumping device
fluid
cast
fluid housing
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP13185843.3A
Other languages
English (en)
French (fr)
Other versions
EP2711550A2 (de
EP2711550A3 (de
Inventor
Peter P. Roth
Paul E. Roth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roy E Roth Co
Original Assignee
Roy E Roth Co
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 Roy E Roth Co filed Critical Roy E Roth Co
Publication of EP2711550A2 publication Critical patent/EP2711550A2/de
Publication of EP2711550A3 publication Critical patent/EP2711550A3/de
Application granted granted Critical
Publication of EP2711550B1 publication Critical patent/EP2711550B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B31/00—Component parts, details or accessories not provided for in, or of interest apart from, other groups
    • F01B31/18—Draining
    • 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
    • F04B53/04—Draining
    • 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
    • F04B53/06—Venting
    • 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • 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
    • F04B53/22—Arrangements for enabling ready assembly or disassembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49236—Fluid pump or compressor making
    • Y10T29/49238—Repairing, converting, servicing or salvaging

Definitions

  • the present invention relates to a flange mounted drain and/or vent tube associated with the inlet to or the outlet from a fluid pumping device and to a method of attaching the flange mounted drain and/or vent tube to the casing of the fluid pumping device which provides simplification in the manufacturing process while substantially reducing the costs of manufacture, testing, inspection, and maintenance of the fluid pumping device.
  • Fluid pumping devices utilized in petroleum and chemical applications require the use of a multi-part drain and/or vent tube assembly operatively connected to the inlet to and/or outlet from of the fluid pumping device.
  • the attachment of a drain and/or vent tube to a fluid pumping device used in petroleum and chemical applications is currently and has been done in the past by employing a series of weldments to operatively secure and connect the multi-part drain and/or vent tube assembly to the inlet or outlet of the cast fluid pumping device. Because such fluid pumping devices are used in petroleum and chemical applications, the American Petroleum Institute (API) has issued and requires stringent testing, inspection, and maintenance of each weldment.
  • API American Petroleum Institute
  • a fluid pumping device suitable for use in the petroleum or chemical industry is disclosed in US 4177016 . It includes a housing and a vent/drain connection as set out in the pre-characterizing part of claim 1.
  • the present invention is disclosed to alleviate the aforementioned problems associated with the assembly of drain and/or venting of fluid pumping devices.
  • the invention provides a fluid pumping device for use in the petroleum and/or chemical industries, according to claim 1, and a method of providing a drain/vent tube to structurally communicate with the inlet or outlet of a cast fluid pumping device, according to claim 9.
  • a drain/vent tube to structurally communicate with the inlet or outlet of a cast fluid pumping device, according to claim 9.
  • Optional features of the invention are set out in the dependent claims.
  • the significant disadvantages of the prior art pumping devices are overcome by eliminating the process of utilizing weldments in securing a multi-part drain and/or vent tube to the inlet or outlet of the pumping device.
  • the process of the present invention is accomplished by drilling or fabricating a tubular drain/vent conduit within the cast fluid housing to communicate between the inlet or outlet of the pumping device and the outer surface of the cast fluid housing.
  • the outer surface of the cast fluid housing, surrounding the outer tubular opening of the tubular drain/vent conduit may be substantially vertical to permit the mounting of a flanged drain and/or vent adaptor member to the cast fluid housing coaxially with the tubular drain/vent member conduit.
  • the outer surface facing of the cast fluid housing, surrounding the tubular opening of the drain/vent may be substantially planar to permit the mounting of the flanged adapter member to the cast fluid housing.
  • the flange adapter member may be secured to the cast fluid housing utilizing a plurality of bolt members engaging threaded openings in the fluid housing.
  • the flanged adapter member preferably includes a bore extending therethrough and a machined projection portion structurally arranged to sealingly engage a recessed shoulder portion surrounding the opening to the tubular drain/vent member in the cast fluid housing.
  • the projecting cast fluid housing surrounding the opening to the drilled tubular drain/vent member may include a recessed shoulder portion which is designed to recess the machined projection portion of the flange adapter member when the flange member is mounted to the fluid housing to provide a seal therebetween.
  • FIGS. 1 and 2 there is illustrated in FIGS. 1 and 2 the attachment of a multi-part drain and/or vent tube assembly 12 to the inlet or outlet 13 of a fluid pumping device 10 having a cast fluid housing 11, mounted on housing supports 11b, in accordance with the prior art. As shown in FIG.
  • the prior art drain/vent tube assembly 12 is comprised of several parts including an engaging portion 12a, an elbow portion 12b, and an elongated portion 12c extending through an opening 14 in the cast fluid housing sidewall 15
  • the several parts of the drain/vent tube assembly 12 are connected and secured together by weldments 16, which include weldment 16a which integrally secures engaging portion 12a of the multi-part tube assembly 12 to the inlet or outlet 13 of the cast fluid housing 11, weldment 16b which integrally secures the elbow portion 12b of the tube assembly 12 to the engaging portion 12a of the assembly, and weldment 16c which integrally secures the elongated portion 12c of the tube assembly 12 to the elbow portion 12b of the assembly.
  • drain/vent tube assemblies 12 it is the practice of the prior art drain/vent tube assemblies 12 to extend the elongated portion 12c of the drain/vent tube member or assembly 12 outwardly through an opening 14 in the cast fluid housing 11 of the pumping device 10.
  • weldments 16d are required to secure a support gusset 14a for the drain/vent tube member 12 extending through the opening 14 in cast fluid housing 11 to prevent fracture of the drain/vent tube assembly from the pumping device.
  • a flange member 17 having a bore 17a therein to the outer end 12d of the drain/vent tube member 12 by a flange weldment 16e to a valve to complete the connection to a vent pipe (not shown).
  • the fluid pumping device 10 is designed for usage in petroleum and chemical pumping applications. Accordingly, the American Petroleum Institute (API) has mandated stringent testing and inspections of each weldment associated with the fluid pumping device by requiring radiography and liquid penetrant examinations of each weldment. However, such tests and examinations are costly and very time consuming. Thus, by reducing the number of weldments and thereby eliminating the difficulties and accessibility to the various weldments associated with the pumping device, substantial savings of labor and labor costs involved in such tests and examinations result in substantial cost savings in the manufacture and maintenance of the fluid pumping devices of the present invention.
  • API American Petroleum Institute
  • the fluid pumping device in accordance with the present invention, has a longer operating life because of the fluid pumping device's resistance to breakage and leakage. It has been determined that the labor and costs saved by the present invention in eliminating the need for weldments can result in a 7-10 percent cost advantage savings for fluid pumping devices made in accordance with the present invention.
  • the present invention contemplates and discloses a simplified assembly and structure for communicating a drain/vent tube member 12 with the inlet or outlet 13 of a fluid pumping device 10.
  • the fluid pumping device 10 includes a cast fluid housing 11 having a fluid inlet or outlet 13 therein.
  • the cast fluid housing 11, is preferably comprised of 316L stainless steel, as is known in the art.
  • the one-piece drain/vent tube member 12 communicates with the fluid inlet or outlet 13 of the pumping device 10.
  • the cast fluid housing 11 of the fluid pumping device provides a structure which permits fabricating by machining or drilling a drain/vent tube member 12 through the cast fluid housing to communicate with and engage the inlet or outlet 13 of the pumping device, best as shown in FIG. 4 .
  • annular bore 18 or recess is axially machined in the cast sidewall 15 of the cast fluid housing about the outer open end 12d of the machined drain/vent tube 12.
  • the cast sidewall 15 adjacent the annular bore 18 presents a planar surface 19 to permit attachment of a machined flanged adapter member 20 directly to the cast sidewall of the cast fluid housing, as will hereinafter be described.
  • the flanged adapter member 20 includes an axial bore 22 therein and an integral male projection portion 24 which is structurally arranged to align with and cooperate with the outer end 12d of the drain/vent tube member 12 when the adapter member is positioned within the annular bore 18.
  • the male projection portion 24 of the flange adapter member 20 extending forwardly thereof includes at least one annular groove 25 or recess extending therearound. As shown in FIG. 6 , two annular grooves or recesses 25 are provided in the outer surfaces of the male projection portion 24 of the flange adapter member 20.
  • the annular recesses 25 are structurally arranged to received o-ring seals 26, as shown in FIG. 6 .
  • the flange adapter member 20 is designed for attachment to the vertical planer casing surface 19 of the cast sidewall 15 through the use of a plurality of bolt members 28 engaging corresponding threaded openings 30 in the planar cast sidewall 15 of the cast fluid housing 11.
  • the o-ring seals 26 positioned within the annular grooves or recesses 25 permits the projection portion 24 is to be sealingly mounted within the annular bore 18 by securing the adapter member 20 with the bolt members 28 engaging the threaded openings 30 in the planar surface 19 of the cast sidewall 15.
  • the bolt members 28 are mounted through the flange member 20 through gusseted openings 32 in the flange adapter member to engage the threaded openings 30 to provide the engagement and seal between the machined flange adapter member 20 and the drain/vent tube member 12.
  • a second flange member 34 having a bore 35 extending the length therein is secured to the annular bore 22 of the flange adapter member 20 by a weldment 36 to complete the assembly.
  • the flange member 34 and annular bore therein provides the exit for the drain/vent member 12 from the fluid pumping device 10 to a valve to complete the connection to a vent pipe (not shown).
  • the present invention discloses a method of making a drain/vent tube 12 to structurally communication with the inlet or outlet of a fluid pumping device 10.
  • This method of making broadly includes casting a fluid housing, drilling a drain/vent tube through the fluid housing to communicate with the inlet or outlet of the pumping device and securing mechanically a flange adapter member to seal the adapter member to the fluid housing to cooperate with the drain/vent tube to permit release of fluid from the fluid pumping device.
  • the flange adapter member 20 is machined to include a male projection portion 24 having at least one annular groove or recess therein on the outer annular surface of the projection portion 24.
  • the fluid housing provides a substantially planar mounting surface portion 24.
  • the fluid housing provides a substantially planar mounting surface about the outer open end 12d of the drain/vent tube 12 and, preferably, includes an enlarged annular bore in the cast fluid housing about the outer open end of the drain/vent tube.
  • the machined flange adapter member 20 and the integral male projection portion 24 is structurally arranged to sealingly engage the enlarged annular bore or recess 18 in the casing sidewall 15 when the machined flange adapter member 20 is secured to the fluid housing sidewall 15. This assembly provides a seal between the adapter member 20 and the cast fluid housing, as shown in FIG. 6 .
  • two o-rings 26 are positioned, respectively, in two annular grooves or recesses in the male projection portion 24 of the machined flange adapter member 20.
  • the o-rings provide a seal between the outer annular surface of the male projection portion 24 and the inner annular surface of the annular bore or recess 18 when the flange adapter member is secured to the planar surface surrounding the annular bore.
  • the cast sidewall 15 of the cast fluid housing provide a support projection ledge 15a above the mounting area of the adapter member 20 to the fluid housing.
  • This protection ledge minimizes the likelihood that a force could fracture the junction between the adapter member and the cast sidewall of the fluid housing. This structure provides a longer operating life of the fluid pumping device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (5)

  1. Fluidpumpvorrichtung für Erdöl oder chemische Fluide, umfassend:
    (a) ein gegossenes Fluidgehäuseteil (11) mit einem Einlass (13) zu oder einem Auslass (13) von der Fluidpumpvorrichtung und mit einer Seitenwand (15); und
    (b) eine Ablauf-/Entlüftungsrohrverbindung (12), die im besagten Fluidgehäuseteil (11) angeordnet ist, um mit dem besagten Einlass (13) zu oder dem besagten Auslass (13) von der Fluidpumpvorrichtung in Eingriff zu gelangen und zu kommunizieren, wobei die Ablauf-/Entlüftungsrohrverbindung (12) an der besagten Seitenwand (15) austritt, gekennzeichnet durch
    ein Flanschadapterelement (20), das direkt an der Außenseite des gegossenen Fluidgehäuses (11) befestigt und strukturell so angeordnet ist, um mit der besagten Ablauf-/Entlüftungsrohrverbindung (12) zu kommunizieren,
    wobei das besagte Flanschadapterelement (20) eine sich durch dieses hindurch erstreckende axiale Bohrung (22) und einen männlichen Vorsprungabschnitt (24) umfasst, der strukturell so angeordnet ist, dass er in das gegossene Fluidgehäuse (11) zur Kommunikation mit der besagten Ablauf-/Entlüftungsrohrverbindung (12) eingreift; wobei der besagte männliche Vorsprungabschnitt (24) wenigstens eine ringförmige Nut (25) enthält, die sich um diesen herum erstreckt; und
    wobei jede Nut der wenigstens einen ringförmigen Nut (25) in dem männlichen Vorsprungabschnitt (24) ein O-Ring-Element enthält, um das besagte Flanschadapterelement (20) gegenüber dem besagten Fluidgehäuse (11) abzudichten.
  2. Fluidpumpvorrichtung nach Anspruch 1, worin die besagte Seitenwand (15) des gegossenen Fluidgehäuses (11) im Wesentlichen senkrecht zu dem Ausgang der besagten Ablauf-/Entlüftungsrohrverbindung (12) aus dem Fluidgehäuse angeordnet ist.
  3. Fluidpumpvorrichtung nach Anspruch 2, worin die Seitenwand (15) des besagten Fluidgehäuses (11) eine ringförmige Aussparung (18) aufweist, die sich um den Ausgang der besagten Ablauf-/Entlüftungsrohrverbindung (12) herum erstreckt.
  4. Fluidpumpvorrichtung nach Anspruch 3, worin der besagte männliche Vorsprungabschnitt (24) strukturell so angeordnet ist, dass dieser in die besagte ringförmige Aussparung (18) in der besagten Seitenwand (15) des besagten Fluidgehäuses (11) eingreift.
  5. Verfahren zum Bereitstellen einer Ablauf-/Entlüftungsrohrverbindung (12) zur strukturellen Kommunikation mit dem Einlass (13) oder Auslass (13) einer gegossenen Pumpeinrichtung (10) für Erdöl und/oder ein chemisches Fluid, umfassend die folgenden Verfahrensschritte:
    a. Bohren einer Ablauf-/Entlüftungsrohrverbindung (12) in die gegossene Fluidpumpvorrichtung, um mit dem Einlass oder Auslass darin in Eingriff zu gelangen und zu kommunizieren;
    b. direktes Befestigen eines Flanschadapterelements (20) zur Kommunikation mit der besagten Ablauf-/Entlüftungsrohrverbindung (12) an der Außenseite der gegossenen Fluidpumpvorrichtung, um die Freigabe von Fluid aus der Pumpvorrichtung zu ermöglichen;
    wobei das besagte Flanschadapterelement (20) eine sich durch dieses hindurch erstreckende axiale Bohrung (22) und einen männlichen Vorsprungabschnitt (24) enthält, der strukturell so angeordnet ist, dass dieser in das besagte Fluidgehäuse (11) eingreifen kann, um mit der besagten Ablauf-/Entlüftungsrohrverbindung (12) zu kommunizieren;
    worin der besagte männliche Vorsprungabschnitt (24) wenigstens eine sich um diesen herum erstreckende ringförmige Nut (25) enthält, und
    wobei jede ringförmige Nut der wenigstens einen ringförmigen Nut (25) im besagten männlichen Vorsprungabschnitt (24) ein O-Ring-Element enthält, um das Flanschadapterelement (20) gegenüber dem besagten Fluidgehäuse (11) abzudichten.
EP13185843.3A 2012-09-25 2013-09-24 Abflussentlüftung für petrochemische/chemische Flüssigkeitspumpvorrichtungen und Herstellungsverfahren dafür Active EP2711550B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201261705410P 2012-09-25 2012-09-25

Publications (3)

Publication Number Publication Date
EP2711550A2 EP2711550A2 (de) 2014-03-26
EP2711550A3 EP2711550A3 (de) 2015-02-25
EP2711550B1 true EP2711550B1 (de) 2018-07-18

Family

ID=49301293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13185843.3A Active EP2711550B1 (de) 2012-09-25 2013-09-24 Abflussentlüftung für petrochemische/chemische Flüssigkeitspumpvorrichtungen und Herstellungsverfahren dafür

Country Status (6)

Country Link
US (1) US20140086768A1 (de)
EP (1) EP2711550B1 (de)
JP (2) JP2014074494A (de)
KR (1) KR20140040057A (de)
CA (1) CA2828322C (de)
SG (1) SG2013072301A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104675694A (zh) * 2015-01-24 2015-06-03 湖州南丰机械制造有限公司 一种连接泵体的进水体
US20230287899A1 (en) * 2020-05-26 2023-09-14 Ebara Corporation Pump casing and pump apparatus

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
JPS5020231U (de) * 1973-06-16 1975-03-07
JPS5476514U (de) * 1977-11-09 1979-05-31
US4177016A (en) * 1978-04-17 1979-12-04 Bechtel International Corporation Self cleaning manifold connection for slurry pump
JPS5970092U (ja) * 1982-11-04 1984-05-12 日機装株式会社 往復動ポンプ装置
JPS62102091U (de) * 1985-12-18 1987-06-29
JPH0453173U (de) * 1990-09-14 1992-05-07
US5848878A (en) * 1996-06-21 1998-12-15 Ingersoll-Rand Company Pump with improved manifold
JP2003254488A (ja) * 2002-03-06 2003-09-10 Asahi Organic Chem Ind Co Ltd 管継手
JP2003262291A (ja) * 2002-03-08 2003-09-19 Denso Airs Corp 配管用分岐継ぎ手構造
JP2004204887A (ja) * 2002-12-24 2004-07-22 Taiyo Ltd 流体圧機器用継手
DE102007007370A1 (de) * 2007-02-12 2008-08-14 Contitech Techno-Chemie Gmbh Verbindungsanordnung für Fluidleitungen
JP2009068386A (ja) * 2007-09-12 2009-04-02 Panasonic Corp 密閉型圧縮機
CH703850A1 (de) * 2010-09-27 2012-03-30 Alstom Technology Ltd Flanschverbindung.
GB2487436B (en) * 2011-01-24 2013-10-09 Framo Eng As Conduit for a hydrocarbon transport pipeline,related method and system

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
CA2828322C (en) 2019-12-03
EP2711550A2 (de) 2014-03-26
SG2013072301A (en) 2014-04-28
CA2828322A1 (en) 2014-03-25
JP2018185051A (ja) 2018-11-22
US20140086768A1 (en) 2014-03-27
EP2711550A3 (de) 2015-02-25
JP2014074494A (ja) 2014-04-24
KR20140040057A (ko) 2014-04-02

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