Adaptors for multistage pump assemblies

Abstract

A pump assembly is configured to fit to a predefined pipe layout defined by supply and discharge interfaces that are positioned in a predefined relation to supply and discharged centerlines, respectively. The pump assembly includes a multistage pump having a plurality of pumping stages mounted along a pump shaft rotating along a rotation axis. The multistage pump has an inlet port and a discharge port, and the multistage pump is aligned horizontally such that the rotation axis is oriented parallel to the supply centerline. The pump assembly also includes an adaptor having a pump interface and a pipe interface, wherein the adaptor has an internal fluid channel extending along a non-linear passageway between the pump and pipe interfaces. The pump interface is coupled to one of the inlet and discharge ports of the multistage pump, and the pipe interface is located proximate one of the supply and discharge interfaces.

1 . A pump assembly configured to fit to a predefined pipe layout, the pipe layout being defined by supply and discharge interfaces that are positioned in a predefined relation to supply and discharged centerlines, respectively, the pump assembly comprising:
 a multistage pump having a plurality of pumping stages mounted along a pump shaft rotating along a rotation axis, the multistage pump having an inlet port and a discharge port, the multistage pump being aligned horizontally such that the rotation axis is oriented parallel to the supply centerline; and   an adaptor having a pump interface and a pipe interface, the adaptor having an internal fluid channel extending along a non-linear passageway between the pump and pipe interfaces, the pump interface being coupled to one of the inlet and discharge ports of the multistage pump, the pipe interface being located proximate one of the supply and discharge interfaces.   
     
     
         2 . The pump assembly of  claim 1 , wherein the inlet port and the discharge port are arranged in-line, the discharge port being located proximate the discharge interface. 
     
     
         3 . The pump assembly of  claim 1 , the multistage pump having closed suction and head ends, where the inlet and discharge ports are both located along sides of the multistage pump proximate the suction end thereof. 
     
     
         4 . The pump assembly of  claim 1 , wherein the inlet and discharge ports are in-line with one another and transverse to the rotation axis, the adaptor having a curved body shaped such that the pump interface engages the inlet port and the pipe interface is located in line with the rotation axis and supply centerline, the pipe interface being located proximate the supply interface. 
     
     
         5 . The pump assembly of  claim 1 , wherein the adaptor is configured to directly engage one of the inlet and discharge ports. 
     
     
         6 . The pump assembly of  claim 1 , wherein the adaptor is configured to directly engage one of the supply and discharge interfaces. 
     
     
         7 . The pump assembly of  claim 1 , the multistage pump having closed suction and head ends, where the inlet and discharge ports are both located along sides of the multistage pump, the adaptor having a curved body shaped such that the pump interface engages the inlet port and the pipe interface is located in line with the rotation axis and supply centerline, the pipe interface being located proximate the supply interface. 
     
     
         8 . The pump assembly of  claim 7 , wherein the inlet and discharge ports are axially aligned with one another along the rotation axis. 
     
     
         9 . The pump assembly of  claim 7 , wherein the discharge port is located proximate the suction end and the inlet port is located proximate the head end. 
     
     
         10 . The pump assembly of  claim 1 , wherein the inlet port is arranged at the suction end in-line with the rotation axis and supply centerline, the adaptor having a curved body shaped such that the pump interface engages the discharge port and the pipe interface is located radially out from the rotation axis in line with the discharge centerline. 
     
     
         11 . The pump assembly of  claim 1 , wherein the discharge interface is spaced a distance X from the supply centerline, the supply interface is spaced a distance Y from the discharge centerline, and the ratio of X to Y is within a range of 6 to 4 and 20 to 6. 
     
     
         12 . The pump assembly of  claim 1 , wherein the discharge interface and the supply interface are arranged proximate the suction end, the rotation axis being coincident with the supply centerline. 
     
     
         13 . The pump assembly of  claim 1 , wherein the supply interface and the discharge interface are arranged perpendicular to one another, one of the inlet port or the discharge port directly engaging the supply interface or the discharge interface, respectively. 
     
     
         14 . A pump system comprising:
 a supply pipe having a supply interface, the supply pipe extending from the supply interface along a supply centerline;   a discharge pipe having a discharge interface, the discharge pipe extending from the discharge interface along a discharge centerline, wherein the discharge interface and the supply interface are positioned in a predefined relation to define a pipe layout; and   a pump assembly comprising:   a multistage pump having a plurality of pumping stages centered about a rotation axis, the multistage pump having an inlet port and a discharge port, the multistage pump being aligned horizontally such that the rotation axis is oriented parallel to the supply centerline; and   an adaptor having a pump interface and a pipe interface, the adaptor having an internal fluid channel extending along a non-linear passageway between the pump and pipe interfaces, the pump interface being coupled to one of the inlet and discharge ports of the multistage pump,   wherein the pump assembly is fluidly coupled to the supply pipe and the discharge pipe such that the pipe interface is coupled to one of the supply interface or the discharge interface.   
     
     
         15 . The pump system of  claim 14 , wherein when the pipe interface is coupled to the supply interface, the discharge port is coupled to the discharge interface, and wherein when the pipe interface is coupled to the discharge interface, the inlet port is coupled to the supply interface. 
     
     
         16 . The pump system of  claim 14 , wherein the inlet and discharge ports are in-line with one another and transverse to the rotation axis, the adaptor having a curved body shaped such that the pump interface engages the inlet port and the pipe interface is located in line with the rotation axis and supply centerline, the pipe interface being located proximate the supply interface. 
     
     
         17 . The pump system of  claim 14 , the multistage pump having closed suction and head ends, where the inlet and discharge ports are both located along sides of the multistage pump, the adaptor having a curved body shaped such that the pump interface engages the inlet port and the pipe interface is located in line with the rotation axis and supply centerline, the pipe interface being located proximate the supply interface. 
     
     
         18 . The pump system of  claim 14 , wherein the inlet port is arranged at the suction end in line with the rotation axis and supply centerline, the adaptor having a curved body shaped such that the pump interface engages the discharge port and the pipe interface is located radially out from the rotation axis in line with the discharge centerline. 
     
     
         19 . The pump system of  claim 14 , wherein the discharge interface is spaced a distance X from the supply centerline, the supply interface is spaced a distance Y from the discharge centerline, and the ration of X to Y is within a range of 6 to 4 and 20 to 6. 
     
     
         20 . The pump system of  claim 14 , wherein the supply interface and the discharge interface are arranged perpendicular to one another, one of the inlet port or the discharge port directly engaging the supply interface or the discharge interface, respectively.