Systems and method for use of single mass flywheel alongside torsional vibration damper assembly for single acting reciprocating pump

Patent metadata

Field	Value
Publication number	US-11092152-B2
Application number	US-202117213562-A
Country	US
Kind code	B2
Filing date	Mar 26, 2021
Priority date	Sep 13, 2019
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

A pump system may include a pump, a driveshaft, driving equipment, and a vibration dampening assembly configured to reduce pump-imposed high frequency/low amplitude and low frequency/high amplitude torsional vibrations. The pump may have an input shaft connected to the driveshaft. The driving equipment may include an output shaft having an output flange connected to the driveshaft. The driving equipment may be configured to rotate the driveshaft to rotate the input shaft of the pump therewith. The vibration dampening assembly may include one or more flywheels operably connected to the input shaft and configured to rotate therewith.

First claim

What is claimed:

1. A pump system comprising:
a pump having an input shaft including an input flange;
a driveshaft connected to the input shaft of the pump, the driveshaft being connected to the input flange of the input shaft;
driving equipment including an output shaft having an output flange connected to the driveshaft and configured to rotate the driveshaft to rotate the input shaft of the pump therewith; and
a vibration dampening assembly including:
one or more torsional vibration dampers operably connected to the input shaft and configured to reduce torsional resonance within the driving equipment or the pump, the one or more torsional vibration dampers comprising a first torsional vibration damper operably connected to the output shaft and a second torsional vibration damper connected to the input flange of the input shaft;
one or more flywheels including a first flywheel operably connected to the input shaft and configured to rotate therewith, the first torsional vibration damper being connected to the first flywheel, the one or more flywheels also being configured to absorb a torque shock in the form of torque variance resulting from hydraulic fluid pulsation within the pump.

2. The pump system according to claim 1 , wherein the pump comprises a single acting reciprocating pump.

3. The pump system according to claim 1 , wherein the first flywheel comprises a single mass flywheel.

4. The pump system according to claim 1 , wherein the first torsional vibration damper is connected to the output flange.

5. The pump system according to claim 1 , wherein the first flywheel is connected to the output flange.

6. The pump system according to claim 1 , wherein the one or more flywheels further comprises a second flywheel, the second flywheel being connected to the input flange.

7. The pump system according to claim 6 , wherein the second torsional vibration damper is connected to the second flywheel.

8. A pump system comprising:
a pump having an input shaft, the input shaft including an input flange;
a driveshaft connected to the input flange of the input shaft of the pump;
driving equipment including an output shaft having an output flange connected to the driveshaft and configured to rotate the driveshaft to rotate the input shaft of the pump therewith; and
a plurality of vibration dampening assemblies comprising:
one or more flywheels including a first flywheel operably connected to the input shaft and configured to rotate therewith, the one or more flywheels being configured to absorb a torque shock in the form of torque variance resulting from hydraulic fluid pulsation within the pump; and
one or more torsional vibration dampers comprising a first torsional vibration damper operably connected to the input flange of the input shaft and a second torsional vibration damper connected to the output flange of the output shaft,

the plurality of vibration dampening assemblies being configured to reduce high frequency/low amplitude and low frequency/high amplitude torsional vibrations generated by operation of the pump.

9. The pump system according to claim 8 , wherein one or more of:
the pump includes a single acting reciprocating pump; the first flywheel includes a single mass flywheel; or the first flywheel is connected to the input flange.

10. The pump system according to claim 8 , wherein the flywheel is connected to the input flange.

11. The pump system according to claim 8 , wherein one or more of the one or more the torsional vibration dampers is connected to the output flange.

12. The pump system according to claim 8 , wherein one or more of the one or more the torsional vibration dampers is connected to the first flywheel.

13. The pump system according to claim 12 , wherein the first flywheel is connected to the input flange.

14. The pump system according to claim 13 , wherein the plurality of vibration dampening assemblies further comprise a second flywheel.

15. The pump system according to claim 14 , wherein the second flywheel is connected to the output flange.

16. The pump system according to claim 14 , wherein the second torsional vibration damper is connected to the second flywheel.

17. A method of manufacturing a flywheel for a pump system having a single acting reciprocating pump and driving equipment configured to cycle the pump, the method comprising:
calculating a desired moment of inertia of the flywheel from kinetic energy “KE” of a torque variance within the pump system above a nominal torque of the pump system resulting from hydraulic fluid pulsation within the pump, calculating the desired moment of inertia of the flywheel comprising:
calculating a first desired moment of inertia of a first flywheel from a first portion of the kinetic energy “KE” of the torque variance within the pump system resulting from hydraulic fluid pulsation within the pump; and
calculating a second desired moment of inertia of a second flywheel from a second portion of the kinetic energy “KE” of the torque variance within the pump system resulting from hydraulic fluid pulsation within the pump, the first portion being greater than, lesser than, or equal to the second portion;

sizing the flywheel to have the desired moment of inertia from the calculated moment of inertia, sizing the flywheel comprising sizing the first flywheel to have the first desired moment of inertia and sizing the second flywheel to have the second desired moment of inertia; and
producing the flywheel for the pump system based on the sizing of the flywheel.

18. The method of claim 17 , wherein sizing the flywheel comprises one or more of:
calculating a first mass of the first flywheel based at least in part on the first desired moment of inertia; or
calculating a second mass of the second flywheel based at least in part on the second desired moment of inertia.

19. The method of claim 18 , further comprising calculating, based at least in part on one or more of the first mass of the first flywheel or the second mass of the second flywheel, one or more of:
one or more of a first radius of rotation of the first flywheel or a first thickness of the first flywheel; or
one or more of a second radius of rotation of the second flywheel or a second thickness of the second flywheel.

20. The method of claim 17 , further comprising determining one or more of:
the first portion of the kinetic energy “KE” of the torque variance within the pump system; or
the second portion of the kinetic energy “KE” of the torque variance within the pump system.

21. The method of claim 20 , wherein the one or more of the first portion of the kinetic energy “KE” of the torque variance within the pump system or the second portion of the kinetic energy “KE” of the torque variance is determined based at least in part on empirical data associated with previous operations of the pump.

22. The method of claim 21 , wherein the empirical data comprises one or more of a magnitude of pressure spikes or a duration of pressure spikes occurring during the previous operations of the pump.

23. The method of claim 17 , wherein one or more of the first portion of the kinetic energy “KE” of the torque variance within the pump system or the second portion of the kinetic energy “KE” of the torque variance is determined based at least in part on one or more of a first angular velocity of operation of the pump or a second angular velocity of operation of the pump.

24. The method of claim 17

Assignees

• Bj Energy Solutions Llc

Inventors

• Yeung Tony
• Rodriguez-Ramon Ricardo
• Rodriguez Guillermo
• Seth Samir Nath

Classifications

• F16F15/3153

  Securing inertia members to the shafts · CPC title

• F16F2222/12

  Fluid damping · CPC title

• F04B53/003 Primary

  by damping supports · CPC title

• F16F2238/02

  Springs · CPC title

• F16F15/1457

  Systems with a single mass · CPC title