Pump pulsation discharge dampener with curved internal baffle and pressure drop feature creating two internal volumes

• US 9,790,934 B2
• Filed: 07/09/2012
• Issued: 10/17/2017
• Est. Priority Date: 07/07/2011
• Status: Active Grant

• Current Assignee: Performance Pulsation Control, Inc.
• Original Assignee: Performance Pulsation Control, Inc.
• Inventors: Mathiak, Gregg M., Kelm, Ray D., Rogers, John Thomas
• Primary Examiner(s): Comley, Alexander
• Application Number:
  US13/544,734
• Publication Number:
  US 20130008512A1
• Time in Patent Office: 1,926 Days
• Field of Search: 417540, 220720, 138 26, 181233
• CPC Class Codes: F04B 11/00 Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
• CPC Class Codes: F04B 11/0008 using accumulators
• CPC Class Codes: F04B 11/0091 using a special shape of fluid pass, e.g. throttles, ducts
• CPC Class Codes: F04B 39/0055 with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
• CPC Class Codes: F04B 53/001 Noise damping
• CPC Class Codes: F16L 55/04 Devices damping pulsations or vibrations in fluids F16L55/02 takes precedence
• CPC Class Codes: Y10T 137/0318 Processes
• CPC Class Codes: Y10T 137/7781 With separate connected fluid reactor surface

Abstract

A pulsation control device coupling a reciprocating pump with either suction or discharge piping and having a generally spherical or cylindrical interior chamber includes a curved baffle with a pressure drop device (e.g., a choke) separating the interior chamber into two volumes and forcing fluid flow through the pressure drop device. The effective fluid passage provided by the pressure drop device is smaller than the fluid passage for one or both of the inlet to and/or the outlet from the interior chamber. Fluid entering the pulsation control device reacts with fluid contained within the volume thereof on both sides of the baffle. The baffle attenuates pressure pulses within fluid passing through the interior chamber in response to operation of the reciprocating pump. The pressure drop device dampens high frequency pulsation magnitudes of pressure pulses within fluid passing through the interior chamber in response to operation of the reciprocating pump.

Claims

1. A hydraulic pulsation control device, comprising:

an inlet to a body of the hydraulic pulsation control device, the body including an interior chamber;

an outlet from the body in fluid communication with the interior chamber;

a baffle within the interior chamber of the hydraulic pulsation control device, the baffle inhibiting direct fluid flow through the body, separating the interior chamber into first and second volumes, and at least partially dampening high frequency pressure pulses within fluid pumped by reciprocating equipment into the first volume of the interior chamber through the inlet and out from the second volume of the interior chamber through the outlet; and

a pressure drop device comprising an annular portion extending into the second volume and extending through a portion of the baffle at a location within the baffle that is off center relative to a direction transverse to a passage through the pressure drop device, wherein the pressure drop device attenuates pressure drops within fluid pumped through the hydraulic pulsation control device,

wherein a total aggregate diameter for fluid passage through the baffle, including an aggregate fluid passage diameter through the pressure drop device, is smaller than a diameter for a fluid passage for one of the inlet to the body and the outlet from the body.

2. The hydraulic pulsation control device of claim 1, wherein the interior chamber is generally spherical or cylindrical and the baffle is curved.

3. The hydraulic pulsation control device of claim 2, wherein the baffle is concave relative to the inlet.

4. The hydraulic pulsation control device of claim 1, wherein the baffle is convex relative to the inlet.

5. The hydraulic pulsation control device of claim 1, wherein the baffle attenuates pressure pulses within fluid passing through the interior chamber in response to operation of a reciprocating pump.

6. The hydraulic pulsation control device of claim 5, wherein the baffle also improves acoustic pulsation energy reduction.

7. The hydraulic pulsation control device of claim 1, wherein the pressure drop device comprises a choke dampening high frequency pulsation magnitudes of pressure pulses within fluid passing through the interior chamber in response to operation of a reciprocating pump.

8. A hydraulic pulsation control device, comprising:

an inlet to a body of the hydraulic pulsation control device, the body including an interior chamber;

an outlet from the body in fluid communication with the interior chamber;

a baffle within the interior chamber of the hydraulic pulsation control device, the baffle inhibiting direct fluid flow through the body, separating the interior chamber into first and second volumes, and at least partially dampening high frequency pressure pulses within fluid pumped by reciprocating equipment into the first volume of the interior chamber through the inlet and out from the second volume of the interior chamber through the outlet; and

a pressure drop device within a portion of the baffle, the pressure drop device comprising a number of openings each extending through the baffle and distributed at various points on the baffle, wherein the pressure drop device attenuates pressure drops within fluid pumped through the hydraulic pulsation control device,

wherein a total aggregate diameter for fluid passage through the baffle, including an aggregate fluid passage diameter for the number of openings, is smaller than a diameter for fluid passage for one of the inlet and the outlet.

9. The hydraulic pulsation control device of claim 8, wherein the interior chamber is generally spherical or cylindrical and the baffle is curved.

10. The hydraulic pulsation control device of claim 8, wherein the baffle is concave relative to the inlet.

11. The hydraulic pulsation control device of claim 8, wherein the baffle is convex relative to the inlet.

12. The hydraulic pulsation control device of claim 8, wherein the baffle attenuates pressure pulses within fluid passing through the interior chamber in response to operation of a reciprocating pump.

13. The hydraulic pulsation control device of claim 12, wherein the baffle also improves acoustic pulsation energy reduction.

14. The hydraulic pulsation control device of claim 8, wherein the pressure drop device comprises a choke dampening high frequency pulsation magnitudes of pressure pulses within fluid passing through the interior chamber in response to operation of a reciprocating pump.

15. A hydraulic pulsation control device, comprising:

an inlet to a body of the hydraulic pulsation control device, the body including an interior chamber, wherein the interior chamber is generally spherical;

an outlet from the body in fluid communication with the interior chamber;

a baffle within the interior chamber of the hydraulic pulsation control device, the baffle inhibiting direct fluid flow through the body, separating the interior chamber into first and second volumes, and at least partially dampening high frequency pressure pulses within fluid pumped by reciprocating equipment into the first volume of the interior chamber through the inlet and out from the second volume of the interior chamber through the outlet, wherein the baffle is curved and the body of the hydraulic pulsation control device is spherical; and

a pressure drop device within a portion of the baffle, the pressure drop device having a single fluid passage comprising an annular portion extending into the second volume, wherein the pressure drop device attenuates pressure drops within fluid pumped through the hydraulic pulsation control device,

wherein a total aggregate diameter for fluid passage through the baffle, including an aggregate fluid passage diameter for the single fluid passage, is smaller than a fluid passage diameter of a fluid passage for the outlet.

16. The hydraulic pulsation control device of claim 15, wherein the baffle is concave relative to the inlet.

17. The hydraulic pulsation control device of claim 15, wherein the baffle is convex relative to the inlet.

18. The hydraulic pulsation control device of claim 15, wherein the baffle attenuates pressure pulses within fluid passing through the interior chamber in response to operation of a reciprocating pump.

19. The hydraulic pulsation control device of claim 18, wherein the baffle also improves acoustic pulsation energy reduction.

20. The hydraulic pulsation control device of claim 15, wherein the pressure drop device comprises a choke dampening high frequency pulsation magnitudes of pressure pulses within fluid passing through the interior chamber in response to operation of a reciprocating pump.