EP2711550A2 - Drain vent for petrochemical/chemical fluid pumping device and method of making the same - Google Patents
Drain vent for petrochemical/chemical fluid pumping device and method of making the same Download PDFInfo
- Publication number
- EP2711550A2 EP2711550A2 EP13185843.3A EP13185843A EP2711550A2 EP 2711550 A2 EP2711550 A2 EP 2711550A2 EP 13185843 A EP13185843 A EP 13185843A EP 2711550 A2 EP2711550 A2 EP 2711550A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pumping device
- drain
- fluid
- cast
- vent
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 101
- 238000005086 pumping Methods 0.000 title claims abstract description 63
- 239000000126 substance Substances 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title description 7
- 239000003208 petroleum Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000005553 drilling Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 description 10
- 238000007689 inspection Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 4
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002601 radiography Methods 0.000 description 2
- 208000013201 Stress fracture Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003763 resistance to breakage Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
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
- the present invention is disclosed to alleviate the aforementioned problems associated with the assembly of drain and/or venting of fluid assist or 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.
- FIG. 1 is a perspective view of a drain and/or vent assembly connection to a cast fluid housing of a prior art petroleum and chemical pumping device;
- FIG. 2 is a cross-sectional view taken through the cast fluid housing taken along line 2-2 through the drain and/or vent assembly connection in FIG. 1 ;
- FIG. 3 is a perspective view of the attachment of a machined flange adapter member to the drain and/or vent conduit within the suction base of a petroleum and chemical pumping device in accordance with the present invention
- FIG. 4 is a cross-sectional view taken along line 4-4 in FIG. 3 ;
- FIG. 5 is a perspective view of the machined flange adapter member in accordance with the present invention.
- FIG. 6 is an enlarged view of FIG. 4 illustrating the engagement and attachment of the machined flange adapter member to the cast fluid housing of a pumping device to axially engage and seal the drain/vent tube member in accordance with the present invention.
- 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)
Abstract
Description
- 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. These tests include radiography and liquid penetrant examination of each weldment to insure that the weldments pass inspection. However, such tests and examinations are costly, time consuming, labor intensive and add significantly to the cost of manufacturing and maintenance of each petroleum and chemical pumping device because of the difficulties encountered in accessing each weldment for such inspections and testings.
- Additionally, it is the practice in the petroleum and chemical pumping industries to mount a flange member to the end of the drain and/or vent tube extending from the casing or suction base of the pumping device. This flange mounting is accomplished by utilizing a weldment which again must pass inspection and testing. Also, because such mounted flanges extends outwardly from the cast fluid housing or suction base of the pumping device, any bending or weight applied to the extended flange cause stress fractures of the weldment, particularly at the junction between the drain/vent tube and the pump casing, thereby necessitating further additional weldments and the attendant testing and inspection of the same.
- The present invention is disclosed to alleviate the aforementioned problems associated with the assembly of drain and/or venting of fluid assist or pumping devices.
- Additionally, it is an object of the present invention to provide a method of attaching or securing a drain or vent tube member to an inlet or an outlet of a fluid pumping device.
- 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. 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. Additionally, 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. Additionally, 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.
- The present invention consists of certain novel structures and processes hereinafter fully described, illustrated in the accompanying drawings, and specifically pointed out in the appended claims, it being understood that changes in the details may be made without departing from the scope of the present invention as set out in the claims.
- The foregoing description and other characteristics, objects, features and advantages of the present invention will become more apparent upon consideration of the following detailed description, given by way of example only, having references to the accompanying drawings wherein:
-
FIG. 1 is a perspective view of a drain and/or vent assembly connection to a cast fluid housing of a prior art petroleum and chemical pumping device; -
FIG. 2 is a cross-sectional view taken through the cast fluid housing taken along line 2-2 through the drain and/or vent assembly connection inFIG. 1 ; -
FIG. 3 is a perspective view of the attachment of a machined flange adapter member to the drain and/or vent conduit within the suction base of a petroleum and chemical pumping device in accordance with the present invention; -
FIG. 4 is a cross-sectional view taken along line 4-4 inFIG. 3 ; -
FIG. 5 is a perspective view of the machined flange adapter member in accordance with the present invention; and -
FIG. 6 is an enlarged view ofFIG. 4 illustrating the engagement and attachment of the machined flange adapter member to the cast fluid housing of a pumping device to axially engage and seal the drain/vent tube member in accordance with the present invention. - Referring now to the drawings wherein like reference numerals have been used throughout the several views to designate the same or similar parts, there is illustrated in
FIGS. 1 and2 the attachment of a multi-part drain and/orvent tube assembly 12 to the inlet oroutlet 13 of afluid pumping device 10 having acast fluid housing 11, mounted on housing supports 11b, in accordance with the prior art. As shown inFIG. 2 , the prior art drain/vent tube assembly 12 is comprised of several parts including anengaging portion 12a, an elbow portion 12b, and anelongated portion 12c extending through anopening 14 in the castfluid housing sidewall 15 The several parts of the drain/vent tube assembly 12 are connected and secured together byweldments 16, which includeweldment 16a which integrally secures engagingportion 12a of themulti-part tube assembly 12 to the inlet oroutlet 13 of thecast fluid housing 11,weldment 16b which integrally secures the elbow portion 12b of thetube assembly 12 to theengaging portion 12a of the assembly, and weldment 16c which integrally secures theelongated portion 12c of thetube assembly 12 to the elbow portion 12b of the assembly. - Also, it is the practice of the prior art drain/
vent tube assemblies 12 to extend theelongated portion 12c of the drain/vent tube member orassembly 12 outwardly through anopening 14 in thecast fluid housing 11 of thepumping device 10. In such assemblies, weldments 16d are required to secure asupport gusset 14a for the drain/vent tube member 12 extending through the opening 14 incast fluid housing 11 to prevent fracture of the drain/vent tube assembly from the pumping device. Finally, it is the practice in the petroleum and chemical industries to secure a flange member 17 having a bore 17a therein to theouter end 12d of the drain/vent tube member 12 by aflange 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. - Also, 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 oroutlet 13 of afluid pumping device 10. Thefluid pumping device 10 includes acast fluid housing 11 having a fluid inlet oroutlet 13 therein. Thecast fluid housing 11, is preferably comprised of 316L stainless steel, as is known in the art. However, it is within the scope of the present invention that the one-piece drain/vent tube member 12 communicates with the fluid inlet oroutlet 13 of thepumping device 10. Thecast 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 oroutlet 13 of the pumping device, best as shown inFIG. 4 . After machining or drilling the drain/vent tube 12 in thecast fluid housing 11, an enlargedannular bore 18 or recess is axially machined in thecast sidewall 15 of the cast fluid housing about the outeropen end 12d of the machined drain/vent tube 12. Preferably, thecast sidewall 15 adjacent theannular bore 18 presents aplanar surface 19 to permit attachment of a machined flangedadapter member 20 directly to the cast sidewall of the cast fluid housing, as will hereinafter be described. - The flanged
adapter member 20 includes anaxial bore 22 therein and an integralmale projection portion 24 which is structurally arranged to align with and cooperate with theouter end 12d of the drain/vent tube member 12 when the adapter member is positioned within theannular bore 18. Themale projection portion 24 of theflange adapter member 20 extending forwardly thereof includes at least oneannular groove 25 or recess extending therearound. As shown inFIG. 6 , two annular grooves orrecesses 25 are provided in the outer surfaces of themale projection portion 24 of theflange adapter member 20. Theannular recesses 25 are structurally arranged to received o-ring seals 26, as shown inFIG. 6 . - Also, as shown in
FIG. 6 , theflange adapter member 20 is designed for attachment to the verticalplaner casing surface 19 of thecast sidewall 15 through the use of a plurality ofbolt members 28 engaging corresponding threadedopenings 30 in theplanar cast sidewall 15 of thecast fluid housing 11. The o-ring seals 26 positioned within the annular grooves orrecesses 25 permits theprojection portion 24 is to be sealingly mounted within theannular bore 18 by securing theadapter member 20 with thebolt members 28 engaging the threadedopenings 30 in theplanar surface 19 of thecast sidewall 15. Thebolt members 28 are mounted through theflange member 20 through gussetedopenings 32 in the flange adapter member to engage the threadedopenings 30 to provide the engagement and seal between the machinedflange adapter member 20 and the drain/vent tube member 12. - Preferably, a
second flange member 34 having abore 35 extending the length therein is secured to theannular bore 22 of theflange adapter member 20 by a weldment 36 to complete the assembly. Theflange member 34 and annular bore therein provides the exit for the drain/vent member 12 from thefluid 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 afluid 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 amale projection portion 24 having at least one annular groove or recess therein on the outer annular surface of theprojection portion 24. The fluid housing provides a substantially planarmounting surface portion 24. The fluid housing provides a substantially planar mounting surface about the outeropen 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 machinedflange adapter member 20 and the integralmale projection portion 24 is structurally arranged to sealingly engage the enlarged annular bore orrecess 18 in thecasing sidewall 15 when the machinedflange adapter member 20 is secured to thefluid housing sidewall 15. This assembly provides a seal between theadapter member 20 and the cast fluid housing, as shown inFIG. 6 . - In
FIG. 6 , two o-rings 26 are positioned, respectively, in two annular grooves or recesses in themale projection portion 24 of the machinedflange adapter member 20. The o-rings provide a seal between the outer annular surface of themale projection portion 24 and the inner annular surface of the annular bore orrecess 18 when the flange adapter member is secured to the planar surface surrounding the annular bore. - Additionally, it is desired that the
cast sidewall 15 of the cast fluid housing provide a support projection ledge 15a above the mounting area of theadapter 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. - While particular embodiments of the present invention have been shown and described, it will be obvious to those skilled in the relevant arts that changes and modifications may be made without departing from the invention in its broader aspects. Therefore, the aim of the appended claims is to cover all such changes and modifications as fall within the spirit and scope of the present invention.
Claims (9)
- A fluid pumping device for use in the petroleum and/or chemical industries, comprising:(a) a cast fluid housing member (11) having an inlet (13) to or an outlet (13) from the fluid pumping device and having a sidewall (15) thereon;(b) a drain/vent tubular connection (12) positioned in said cast fluid housing (11) to engage and communicate with said inlet (13) to or said outlet (13) from the fluid pumping device, with said drain/vent tubular connection (12) exiting at said sidewall (15); and(c) a flange adapter member (20) secured to said cast fluid housing (11) and structurally arranged to communicate with said drain/vent tubular connection (12).
- The fluid pumping device in accordance with claim 1 wherein said drain/vent tubular connection (12) is positioned in said fluid housing (11) to communicate with said inlet (13) to or outlet (13) from said pumping device by drilling said drain/vent connection (12) in said fluid housing.
- The fluid pumping device in accordance with claim 1 wherein said sidewall (15) of said cast fluid housing (11) is positioned substantially perpendicular to said exit of said drain/vent tubular connection (12) from said fluid housing.
- The fluid pumping device in accordance with claim 3, wherein said sidewall (15) of said fluid housing (11) includes an annular recess (18) extending around the exit of said drain/vent tubular connection (12).
- The fluid pumping device in accordance with claim1, wherein said flange adapter member (20) includes an axial bore (22) extending therethrough and a male projection portion (24) structurally arranged to engage said cast fluid housing (11) to communicate with said drain/vent tubular connection (12).
- The fluid pumping device in accordance with claim 4, wherein said flange adapter member (20) includes a axial bore therethrough and a male projection portion (24) structurally arranged to engage said annular recess (18) in said sidewall (15) of said fluid housing (11).
- The fluid pumping device in accordance with claim 5, wherein said male projection portion (24) includes at least one annular groove (25) extending therearound.
- The fluid pumping device in accordance with claim 5, wherein each of said at least one annular groove (25) in said male projection portion (24) includes an o-ring member to seal said flange adapter member (20) to said fluid housing (11).
- A method of providing a drain/vent tube (12) to structurally communicate with the inlet (13) or outlet (13) of a cast fluid pumping device (10), comprising the steps of:a. drilling a drain/vent tubular connection (12) in the cast fluid pumping device to engage and communicate with the inlet or outlet therein; andb. mounting a flange adapter member (20) to the cast fluid pumping device to communicate with said drain/vent tubular connection (12) to permit release of fluid from the pumping device.
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 true EP2711550A2 (en) | 2014-03-26 |
EP2711550A3 EP2711550A3 (en) | 2015-02-25 |
EP2711550B1 EP2711550B1 (en) | 2018-07-18 |
Family
ID=49301293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13185843.3A Active EP2711550B1 (en) | 2012-09-25 | 2013-09-24 | Drain vent for petrochemical/chemical fluid pumping device and method of making the same |
Country Status (6)
Country | Link |
---|---|
US (1) | US20140086768A1 (en) |
EP (1) | EP2711550B1 (en) |
JP (2) | JP2014074494A (en) |
KR (1) | KR20140040057A (en) |
CA (1) | CA2828322C (en) |
SG (1) | SG2013072301A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104675694A (en) * | 2015-01-24 | 2015-06-03 | 湖州南丰机械制造有限公司 | Water incoming unit to be connected with pump body |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4160024A4 (en) * | 2020-05-26 | 2024-06-05 | Ebara Corporation | Pump casing and pump device |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5020231U (en) * | 1973-06-16 | 1975-03-07 | ||
JPS5476514U (en) * | 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 (en) * | 1982-11-04 | 1984-05-12 | 日機装株式会社 | reciprocating pump device |
JPS62102091U (en) * | 1985-12-18 | 1987-06-29 | ||
JPH0453173U (en) * | 1990-09-14 | 1992-05-07 | ||
US5848878A (en) * | 1996-06-21 | 1998-12-15 | Ingersoll-Rand Company | Pump with improved manifold |
JP2003254488A (en) * | 2002-03-06 | 2003-09-10 | Asahi Organic Chem Ind Co Ltd | Pipe joint |
JP2003262291A (en) * | 2002-03-08 | 2003-09-19 | Denso Airs Corp | Structure of branch joint for piping |
JP2004204887A (en) * | 2002-12-24 | 2004-07-22 | Taiyo Ltd | Coupling for fluid pressure equipment |
DE102007007370A1 (en) * | 2007-02-12 | 2008-08-14 | Contitech Techno-Chemie Gmbh | Connecting arrangement for fluid lines |
JP2009068386A (en) * | 2007-09-12 | 2009-04-02 | Panasonic Corp | Hermetic compressor |
CH703850A1 (en) * | 2010-09-27 | 2012-03-30 | Alstom Technology Ltd | Flange connection for connecting pipes, includes flange, pressure chamber having opening, wall, tubular unit, shoulder and multiple screws, where tubular unit is equipped at bottom of flange connection |
GB2487436B (en) * | 2011-01-24 | 2013-10-09 | Framo Eng As | Conduit for a hydrocarbon transport pipeline,related method and system |
-
2013
- 2013-09-24 EP EP13185843.3A patent/EP2711550B1/en active Active
- 2013-09-24 US US14/035,485 patent/US20140086768A1/en not_active Abandoned
- 2013-09-24 JP JP2013196668A patent/JP2014074494A/en not_active Withdrawn
- 2013-09-24 CA CA2828322A patent/CA2828322C/en active Active
- 2013-09-25 KR KR1020130113645A patent/KR20140040057A/en not_active Application Discontinuation
- 2013-09-25 SG SG2013072301A patent/SG2013072301A/en unknown
-
2018
- 2018-08-17 JP JP2018153525A patent/JP2018185051A/en active Pending
Non-Patent Citations (1)
Title |
---|
None |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104675694A (en) * | 2015-01-24 | 2015-06-03 | 湖州南丰机械制造有限公司 | Water incoming unit to be connected with pump body |
Also Published As
Publication number | Publication date |
---|---|
EP2711550A3 (en) | 2015-02-25 |
JP2018185051A (en) | 2018-11-22 |
CA2828322C (en) | 2019-12-03 |
US20140086768A1 (en) | 2014-03-27 |
KR20140040057A (en) | 2014-04-02 |
SG2013072301A (en) | 2014-04-28 |
CA2828322A1 (en) | 2014-03-25 |
EP2711550B1 (en) | 2018-07-18 |
JP2014074494A (en) | 2014-04-24 |
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