US20180112671A1 - Hydraulically balanced pump discharge - Google Patents
Hydraulically balanced pump discharge Download PDFInfo
- Publication number
- US20180112671A1 US20180112671A1 US15/562,946 US201515562946A US2018112671A1 US 20180112671 A1 US20180112671 A1 US 20180112671A1 US 201515562946 A US201515562946 A US 201515562946A US 2018112671 A1 US2018112671 A1 US 2018112671A1
- Authority
- US
- United States
- Prior art keywords
- pumping system
- stub end
- pressure chamber
- horizontal pumping
- discharge head
- 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.)
- Abandoned
Links
- 238000005086 pumping Methods 0.000 claims abstract description 46
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 230000008602 contraction Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/041—Axial thrust balancing
- F04D29/0416—Axial thrust balancing balancing pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
- F05D2230/642—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins using maintaining alignment while permitting differential dilatation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/52—Outlet
Definitions
- This invention relates generally to the field of pumping systems, and more particularly, but not by way of limitation, to a mechanism for connecting the discharge of a pumping system to a downstream line.
- Horizontal pumping systems are used in various industries for a variety of purposes.
- horizontal pumping systems are used to pump fluids, such as water separated from oil, to a remote destination, such as a tank or disposal well.
- these horizontal pumping systems include a pump, a motor, and a suction housing positioned between the pump and the motor.
- a thrust chamber is also included between the motor and the suction housing.
- the pump includes a discharge assembly that is connected to downstream piping.
- a typical prior art surface pumping system 500 includes a discharge head 502 and a stub end 504 that is threadingly engaged within the discharge head 502 .
- the stub end 504 can be connected to a flange 506 that is in turn connected to downstream piping 508 .
- the lack of movement between the pumping system 500 and the downstream piping 508 creates a challenge during installation of the pumping system 500 because the components must be precisely manufactured and aligned during installation.
- the present invention includes a horizontal pumping system for pumping fluids into downstream piping.
- the horizontal pumping system includes a motor and a pump driven by the motor.
- the pump includes a discharge assembly for use in connecting a pump within a horizontal pumping system to downstream piping.
- the discharge assembly includes a discharge head and a stub end configured for sliding engagement with the discharge head.
- the stub end is captured within the discharge head in a hydraulically balanced condition.
- the discharge assembly includes a hydraulic balance chamber and a runner plate within the hydraulic balance chamber. The runner plate is secured to the stub end.
- FIG. 1 depicts a PRIOR ART horizontal pumping system.
- FIG. 2 is a side view of a horizontal pumping system constructed in accordance with an embodiment.
- FIG. 3 is a cross-sectional view of the discharge assembly connection constructed in accordance with a first embodiment in a first position.
- FIG. 4 is a cross-sectional view of the discharge assembly connection constructed in accordance with a first embodiment in a second position.
- FIG. 2 shows a side view of a horizontal pumping system 100 .
- the horizontal pumping system 100 includes a motor 102 , a suction housing 104 , a pump 106 , a thrust chamber 108 , a frame 110 and a pad 112 .
- the suction housing 104 is connected between the pump 106 and the thrust chamber 108 .
- the thrust chamber 108 is connected between the suction housing 104 and the motor 102 .
- the motor 102 drives the pump 106 through a series of shafts (not visible in FIG. 1 ) that extend through the thrust chamber 108 and suction housing 104 . Pumped fluids are provided to the suction housing 104 and pressurized by the pump 106 .
- the pump 106 is a centrifugal pump. In an embodiment, the pump 106 is a multistage centrifugal pump.
- Each of the components within the horizontal pumping system 100 is in an embodiment supported by the frame 110 , which is in turn supported by the pad 112 . Although only one of each component is shown in FIG. 2 , it will be understood that more can be connected when appropriate, that other arrangements of the components are desirable and that these additional configurations are encompassed within the scope in an embodiment.
- the pump 106 includes a discharge assembly 114 that is connected to downstream piping 116 .
- downstream piping 116 may refer to tubing, pipes, hoses or other fixed facilities, including tanks and vessels.
- FIGS. 3 and 4 shown therein are cross-sectional views of the discharge assembly 114 constructed in accordance with in an embodiment.
- FIG. 3 presents the discharge assembly 114 in a contracted first position and
- FIG. 4 presents the discharge assembly 114 in a second expanded position.
- the discharge assembly 114 generally permits a degree of axial and rotational movement between the pump 106 and the downstream piping 116 . Accommodating a degree of movement between the pump 106 and the downstream piping 116 facilitates the alignment and installation of the horizontal pumping system 100 and also decreases any strain that results from the expansion and contraction of the horizontal pumping system 100 and downstream piping 116 during use.
- the discharge assembly 114 includes a discharge head 118 , a stub end 120 , a runner plate 122 and an end plate 124 .
- the discharge head 118 includes an interior passage 126 through which pumped fluids will pass under pressure.
- the interior passage 126 has a circular cross-section. It will be understood that the interior passage within the discharge head 118 may be a different size and configuration than the balance of the pump 106 .
- the discharge head 118 further includes a hydraulic balance chamber 128 adjacent the open end of the discharge head 118 .
- the stub end 120 includes a proximal portion 130 , a distal portion 132 and a shoulder 134 that separates the proximal portion 130 from the distal portion 132 .
- the proximal portion 130 is sized and geometrically configured to be slidingly received within the interior passage 126 .
- the distal portion 132 of the stub end 120 is configured for connection to an intermediate flange (not shown) or directly to the downstream piping 116 .
- the runner plate 122 is sized to fit around the external surface of the proximal portion 130 and within the interior surface of the hydraulic balance chamber 128 .
- the runner plate 122 is captured against the shoulder 134 by a lock 136 .
- the lock 136 is a nut or washer that is configured for threaded engagement with the stub end 120 .
- a locking nut is in an embodiment, it will be appreciated that the lock 136 may alternatively incorporate alternative locking mechanisms that include, for example, snap rings, compression fittings and pins.
- the end plate 124 surrounds the exterior of the distal portion 132 of the stub end 120 and is secured to the discharge head 118 with fasteners 138 .
- the end plate 124 limits the extension of the stub end 120 as the runner plate 122 comes into contact with the end plate 124 .
- the end plate 124 cooperates with the discharge head 118 and stub end 120 to define the interior boundaries of the hydraulic balance chamber 128 .
- the hydraulic balance chamber 128 is divided by the runner plate 122 into a high pressure chamber 140 and a low pressure chamber 142 .
- the high pressure chamber 140 is placed into fluid communication with the pumped fluid within the stub end 120 by a pressure port 144 .
- the low pressure chamber 142 is placed into fluid communication with external ambient pressure through a vent 146 .
- the cross-sectional area of the high pressure chamber 140 (A 1 ) is substantially the same as the cross-sectional area of the end wall of the proximal portion 130 of the stub end 120 (A 2 ). In this way, the pressure applied to the end of the proximal portion 130 of the stub end 120 is approximately the same as the pressure applied in the opposite direction on the runner plate 122 within the high pressure chamber 140 of the hydraulic balance camber 128 .
- Seals 148 prevent fluid from passing out of the hydraulic balance chamber 128 and across the runner plate 122 within the hydraulic balance chamber 128 .
- the seals 148 may be O-ring seals, lip seals, spring seals, shaft seals or mechanical seals. It will be appreciated that additional or fewer seals 148 may be used within the discharge assembly 114 and that the seals 148 may include a combination of a variety of different types of seals.
- pressurized fluid applies forces in substantially equal magnitudes in opposite directions to the stub end 120 .
Abstract
A horizontal pumping system for pumping fluids into downstream piping includes a motor and a pump driven by the motor. The pump includes a discharge assembly for use in connecting a pump within a horizontal pumping system to downstream piping. The discharge assembly preferably includes a discharge head and a stub end configured for sliding engagement with the discharge head. The stub end is captured within the discharge head in a hydraulically balanced condition and the discharge assembly further includes a hydraulic balance chamber and a runner plate within the hydraulic balance chamber. The runner plate is secured to the stub end.
Description
- This invention relates generally to the field of pumping systems, and more particularly, but not by way of limitation, to a mechanism for connecting the discharge of a pumping system to a downstream line.
- Horizontal pumping systems are used in various industries for a variety of purposes. For example, in the oil and gas industry horizontal pumping systems are used to pump fluids, such as water separated from oil, to a remote destination, such as a tank or disposal well. Typically these horizontal pumping systems include a pump, a motor, and a suction housing positioned between the pump and the motor. A thrust chamber is also included between the motor and the suction housing. The pump includes a discharge assembly that is connected to downstream piping.
- As illustrated in the PRIOR ART drawing of
FIG. 1 , a typical prior artsurface pumping system 500 includes adischarge head 502 and astub end 504 that is threadingly engaged within thedischarge head 502. Thestub end 504 can be connected to aflange 506 that is in turn connected todownstream piping 508. Once thestub end 504 is threaded into thedischarge head 502 and then connected to theflange 506 anddownstream piping 508, there is little or no degree of axial movement between thepumping system 500 and thedownstream piping 508. The lack of movement between thepumping system 500 and thedownstream piping 508 creates a challenge during installation of thepumping system 500 because the components must be precisely manufactured and aligned during installation. Furthermore, during use the components may expand and contract due to changes in operating and environmental temperatures. The expansion and contraction of thedownstream piping 508 and thepumping system 500 may strain the components and connections. There is, therefore, a need for an improved system of connecting downstream piping to a horizontal pumping system that alleviates the deficiencies of the prior art. - In an embodiment, the present invention includes a horizontal pumping system for pumping fluids into downstream piping. The horizontal pumping system includes a motor and a pump driven by the motor. The pump includes a discharge assembly for use in connecting a pump within a horizontal pumping system to downstream piping. The discharge assembly includes a discharge head and a stub end configured for sliding engagement with the discharge head.
- In an embodiment, the stub end is captured within the discharge head in a hydraulically balanced condition. The discharge assembly includes a hydraulic balance chamber and a runner plate within the hydraulic balance chamber. The runner plate is secured to the stub end.
-
FIG. 1 depicts a PRIOR ART horizontal pumping system. -
FIG. 2 is a side view of a horizontal pumping system constructed in accordance with an embodiment. -
FIG. 3 is a cross-sectional view of the discharge assembly connection constructed in accordance with a first embodiment in a first position. -
FIG. 4 is a cross-sectional view of the discharge assembly connection constructed in accordance with a first embodiment in a second position. - In accordance with an embodiment of the present invention,
FIG. 2 shows a side view of ahorizontal pumping system 100. Thehorizontal pumping system 100 includes amotor 102, asuction housing 104, a pump 106, athrust chamber 108, aframe 110 and apad 112. Thesuction housing 104 is connected between the pump 106 and thethrust chamber 108. Thethrust chamber 108 is connected between thesuction housing 104 and themotor 102. Generally, themotor 102 drives the pump 106 through a series of shafts (not visible inFIG. 1 ) that extend through thethrust chamber 108 andsuction housing 104. Pumped fluids are provided to thesuction housing 104 and pressurized by the pump 106. In an embodiment, the pump 106 is a centrifugal pump. In an embodiment, the pump 106 is a multistage centrifugal pump. Each of the components within thehorizontal pumping system 100 is in an embodiment supported by theframe 110, which is in turn supported by thepad 112. Although only one of each component is shown inFIG. 2 , it will be understood that more can be connected when appropriate, that other arrangements of the components are desirable and that these additional configurations are encompassed within the scope in an embodiment. - The pump 106 includes a
discharge assembly 114 that is connected todownstream piping 116. As used herein, the termdownstream piping 116 may refer to tubing, pipes, hoses or other fixed facilities, including tanks and vessels. - Turning to
FIGS. 3 and 4 , shown therein are cross-sectional views of thedischarge assembly 114 constructed in accordance with in an embodiment.FIG. 3 presents thedischarge assembly 114 in a contracted first position andFIG. 4 presents thedischarge assembly 114 in a second expanded position. Thedischarge assembly 114 generally permits a degree of axial and rotational movement between the pump 106 and thedownstream piping 116. Accommodating a degree of movement between the pump 106 and thedownstream piping 116 facilitates the alignment and installation of thehorizontal pumping system 100 and also decreases any strain that results from the expansion and contraction of thehorizontal pumping system 100 anddownstream piping 116 during use. - In an embodiment, the
discharge assembly 114 includes adischarge head 118, astub end 120, arunner plate 122 and anend plate 124. Thedischarge head 118 includes aninterior passage 126 through which pumped fluids will pass under pressure. In an embodiment, theinterior passage 126 has a circular cross-section. It will be understood that the interior passage within thedischarge head 118 may be a different size and configuration than the balance of the pump 106. Thedischarge head 118 further includes ahydraulic balance chamber 128 adjacent the open end of thedischarge head 118. - The
stub end 120 includes aproximal portion 130, adistal portion 132 and ashoulder 134 that separates theproximal portion 130 from thedistal portion 132. Theproximal portion 130 is sized and geometrically configured to be slidingly received within theinterior passage 126. Thedistal portion 132 of thestub end 120 is configured for connection to an intermediate flange (not shown) or directly to thedownstream piping 116. - The
runner plate 122 is sized to fit around the external surface of theproximal portion 130 and within the interior surface of thehydraulic balance chamber 128. Therunner plate 122 is captured against theshoulder 134 by alock 136. In an embodiment, thelock 136 is a nut or washer that is configured for threaded engagement with thestub end 120. Although a locking nut is in an embodiment, it will be appreciated that thelock 136 may alternatively incorporate alternative locking mechanisms that include, for example, snap rings, compression fittings and pins. - The
end plate 124 surrounds the exterior of thedistal portion 132 of thestub end 120 and is secured to thedischarge head 118 withfasteners 138. Theend plate 124 limits the extension of thestub end 120 as therunner plate 122 comes into contact with theend plate 124. Theend plate 124 cooperates with thedischarge head 118 andstub end 120 to define the interior boundaries of thehydraulic balance chamber 128. - The
hydraulic balance chamber 128 is divided by therunner plate 122 into ahigh pressure chamber 140 and alow pressure chamber 142. Thehigh pressure chamber 140 is placed into fluid communication with the pumped fluid within thestub end 120 by apressure port 144. Thelow pressure chamber 142 is placed into fluid communication with external ambient pressure through avent 146. - In an embodiment, the cross-sectional area of the high pressure chamber 140 (A1) is substantially the same as the cross-sectional area of the end wall of the
proximal portion 130 of the stub end 120 (A2). In this way, the pressure applied to the end of theproximal portion 130 of thestub end 120 is approximately the same as the pressure applied in the opposite direction on therunner plate 122 within thehigh pressure chamber 140 of thehydraulic balance camber 128. -
Seals 148 prevent fluid from passing out of thehydraulic balance chamber 128 and across therunner plate 122 within thehydraulic balance chamber 128. Theseals 148 may be O-ring seals, lip seals, spring seals, shaft seals or mechanical seals. It will be appreciated that additional orfewer seals 148 may be used within thedischarge assembly 114 and that theseals 148 may include a combination of a variety of different types of seals. - During operation of the
horizontal pumping system 100, pressurized fluid applies forces in substantially equal magnitudes in opposite directions to thestub end 120. This permits thestub end 120 to slide without substantial restriction from pressure within thedischarge head 118. Allowing thestub end 120 to move axially and rotationally within the fixeddischarge head 118 facilitates alignment and connection of thedownstream piping 116 and reduces strain caused by relative expansion and contraction of the components within thehorizontal pumping system 100 and thedownstream piping 116. - It is to be understood that even though numerous characteristics and advantages of various embodiments of the present invention have been set forth in the foregoing description, together with details of the structure and functions of various embodiments of the invention, this disclosure is illustrative only, and changes may be made in detail, especially in matters of structure and arrangement of parts within the principles of the present invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed. It will be appreciated by those skilled in the art that the teachings of the present invention can be applied to other systems without departing from the scope and spirit of the present invention. This written description uses examples to disclose the invention, including the preferred embodiments, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.
Claims (20)
1. A discharge assembly for use in connecting a pump within a horizontal pumping system to downstream piping, the discharge assembly comprising:
a discharge head; and
a stub end configured for sliding engagement with the discharge head.
2. The discharge assembly of claim 1 , wherein the discharge assembly further comprises:
a hydraulic balance chamber; and
a runner plate within the hydraulic balance chamber, wherein the runner plate is secured to the stub end.
3. The discharge assembly of claim 2 , wherein the hydraulic balance chamber comprises:
a high pressure chamber; and
a low pressure chamber.
4. The discharge assembly of claim 3 , wherein the stub end comprises:
an interior; and
a pressure port that places the high pressure chamber in fluid communication with the interior.
5. The discharge assembly of claim 3 , wherein the stub end has a proximal end wall that has a stub end cross-sectional area, and wherein the high pressure chamber has a cross-sectional area that is substantially the same as the stub end cross-sectional area.
6. The discharge assembly of claim 3 , wherein the discharge head includes a vent that places the low pressure chamber in fluid communication with an external atmosphere.
7. The discharge assembly of claim 2 , wherein the runner plate is secured to the stub end with a lock selected from the group consisting of locking nuts, snap rings, dowels and press fit connections.
8. A horizontal pumping system for pumping fluids into downstream piping, the horizontal pumping system comprising:
a motor; and
a pump driven by the motor, wherein the pump comprises:
a discharge assembly for use in connecting a pump within a horizontal pumping system to downstream piping, wherein the discharge assembly comprises:
a discharge head; and
a stub end configured for sliding engagement with the discharge head.
9. The horizontal pumping system of claim 8 , wherein the discharge assembly further comprises:
a hydraulic balance chamber; and
a runner plate within the hydraulic balance chamber, wherein the runner plate is secured to the stub end.
10. The horizontal pumping system of claim 9 , wherein the hydraulic balance chamber comprises:
a high pressure chamber; and
a low pressure chamber.
11. The horizontal pumping system of claim 10 , wherein the stub end comprises:
an interior; and
a pressure port that places the high pressure chamber in fluid communication with the interior.
12. The horizontal pumping system of claim 10 , wherein the stub end has a proximal end wall that has a stub end cross-sectional area, and wherein the high pressure chamber has a cross-sectional area that is substantially the same as the stub end cross-sectional area.
13. The horizontal pumping system of claim 10 , wherein the discharge head includes a vent that places the low pressure chamber in fluid communication with an external atmosphere.
14. The horizontal pumping system of claim 10 , wherein the runner plate is secured to the stub end with a lock selected from the group consisting of locking nuts, snap rings, dowels and press fit connections.
15. A horizontal pumping system for pumping fluids into downstream piping, the horizontal pumping system comprising:
a motor; and
a pump driven by the motor, wherein the pump comprises:
a discharge head; and
a stub end that is axially and rotationally movable within the discharge head.
16. The horizontal pumping system of claim 15 , wherein the pump further comprises:
a hydraulic balance chamber within the discharge head; and
a runner plate within the hydraulic balance chamber.
17. The horizontal pumping system of claim 16 , further comprising an end plate that captures the stub end within the discharge head.
18. The horizontal pumping system of claim 16 , wherein the hydraulic balance chamber comprises:
a high pressure chamber;
a low pressure chamber; and
wherein the high pressure chamber is separated from the low pressure chamber by the runner plate.
19. The horizontal pumping system of claim 18 , wherein the stub end includes a pressure port in communication with the high pressure chamber.
20. The horizontal pumping system of claim 18 , wherein the discharge head includes a vent extending between the low pressure chamber and an external ambient pressure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2015/023663 WO2016159990A1 (en) | 2015-03-31 | 2015-03-31 | Hydraulically balanced pump discharge |
Publications (1)
Publication Number | Publication Date |
---|---|
US20180112671A1 true US20180112671A1 (en) | 2018-04-26 |
Family
ID=57006229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/562,946 Abandoned US20180112671A1 (en) | 2015-03-31 | 2015-03-31 | Hydraulically balanced pump discharge |
Country Status (4)
Country | Link |
---|---|
US (1) | US20180112671A1 (en) |
CA (1) | CA2981458A1 (en) |
RU (1) | RU2688636C2 (en) |
WO (1) | WO2016159990A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111622989A (en) * | 2020-06-03 | 2020-09-04 | 安徽卧龙泵阀股份有限公司 | A locking mounting structure of pump shaft balance disc for chemical centrifugal pump |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2373280A (en) * | 1943-07-06 | 1945-04-10 | Phillips Petroleum Co | Nonthrusting pipe expansion joint |
US3131642A (en) * | 1962-11-30 | 1964-05-05 | Wilfley & Sons Inc A | Standpipe connection for centrifugal pumps |
JPS5816488U (en) * | 1981-07-24 | 1983-02-01 | 株式会社日立製作所 | Pit barrel type pump |
SU1306234A1 (en) * | 1985-04-04 | 1991-04-07 | Предприятие П/Я В-8721 | Intake pipe of vertical pump |
JPH0683986U (en) * | 1993-05-14 | 1994-12-02 | 株式会社クボタ | Pump device |
US6089321A (en) * | 1998-03-16 | 2000-07-18 | Hydril Company | Pressure balanced choke and kill line connector |
US20070086906A1 (en) * | 2005-10-14 | 2007-04-19 | Wayne Horley | Surface pump assembly |
US8550155B2 (en) * | 2011-03-10 | 2013-10-08 | Thru Tubing Solutions, Inc. | Jarring method and apparatus using fluid pressure to reset jar |
US10260517B2 (en) * | 2013-07-24 | 2019-04-16 | Ge Oil & Gas Esp, Inc. | Fixed suction chamber with rear and front seal removal |
-
2015
- 2015-03-31 WO PCT/US2015/023663 patent/WO2016159990A1/en active Application Filing
- 2015-03-31 RU RU2017133965A patent/RU2688636C2/en not_active IP Right Cessation
- 2015-03-31 CA CA2981458A patent/CA2981458A1/en not_active Abandoned
- 2015-03-31 US US15/562,946 patent/US20180112671A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
RU2688636C2 (en) | 2019-05-21 |
WO2016159990A1 (en) | 2016-10-06 |
RU2017133965A3 (en) | 2019-04-30 |
RU2017133965A (en) | 2019-04-30 |
CA2981458A1 (en) | 2016-10-06 |
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Legal Events
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AS | Assignment |
Owner name: GE OIL & GAS ESP, INC., OKLAHOMA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NELSON, ANDREW MICHAEL;CAMPBELL, MICHAEL DAVID;PETERSON, JOHNATHAN EDWARD;AND OTHERS;SIGNING DATES FROM 20150331 TO 20150408;REEL/FRAME:043737/0259 |
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STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |