Fluid End Assembly with Modified Suction Block

a technology of suction block and end assembly, which is applied in the direction of pump components, positive displacement liquid engine, pump control, etc., can solve the problems of fatigue failure and wear of the suction module and valve, the operating environment of such pumps is very demanding, and the components of the suction module and the valve are susceptible to fatigue failure and wear, so as to reduce the stress of the suction block and reduce the stress of the suction valve module during us

Inactive Publication Date: 2019-08-29
FIRSTEX IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This design significantly reduces operating stresses in the suction module, extends the life of the pump components, simplifies maintenance by allowing easier removal and replacement, and enhances fluid dynamics, resulting in reduced downtime and increased efficiency.

Problems solved by technology

Because of the cyclic pressures (atmospheric to 10 kpsi or more) of these high pressure reciprocating fluid pumps, and the use of abrasive process fluids, the operating environment of such pumps is very demanding.
Because of the high cyclical pressures encountered in the fluid end portions of these pumps, their components, such as the suction module and valves are susceptible to fatigue failure and wear.
These intersecting cross-bores create stress concentrations, and thus further contribute to fatigue failure of the suction modules of the fluid end portions of such pumps.
Moreover, because of high pump pressures, leakage from such pumps becomes a problem when the valves begin to wear.
These pumps require heavy discharge manifolds to contain the high pressure encountered and are still susceptible to fatigue failure and wear.
Such configurations are therefore labor-intensive, time-consuming, and result in expensive downtime of the fluid pump.
Since the repairs must be made at the site of the fluid pump, and thus at the sight of downhole operations and so on, exposure to adverse weather conditions further contributes to the difficulties associated with removal and replacement of the worn or broken parts.

Method used

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  • Fluid End Assembly with Modified Suction Block
  • Fluid End Assembly with Modified Suction Block
  • Fluid End Assembly with Modified Suction Block

Examples

Experimental program
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Embodiment Construction

[0024]Referring to the drawings, and to FIGS. 1-4 in particular, a fluid end assembly 10 that forms part of a high-pressure reciprocating pump is illustrated. A typical, high-pressure, reciprocating fluid pump comprises two major assemblies, namely a power end assembly (not shown), and a fluid end assembly, which is the subject matter of the present invention. The fluid end assembly 10 is connected to the power end assembly in a well-known manner for driving a reciprocating plunger (not shown) associated with the fluid end assembly 10 for transporting liquids with high solid content from one location to another. Such power end assemblies are well known in the art and therefore will not be further elaborated on.

[0025]The fluid end assembly 10, in accordance with the invention, preferably includes a fluid discharge module 14 and a suction module 16 connected to the fluid discharge module 14.

[0026]As shown, the fluid discharge module 14 preferably includes a single-piece block 18 which...

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Abstract

A suction block for use in a fluid end assembly of a high pressure reciprocal pump includes a first suction bore extending from a first face of the suction block and into the interior thereof; and a second suction bore extending from a second face of the suction block and into the interior thereof to intersect the first suction bore. The second suction bore is adapted to receive a valve assembly for alternatively fluidly connecting and disconnecting the first and second suction bores. The first suction bore has a first suction bore section with a first geometry and a second suction bore section with a second geometry different from the first geometry to thereby reduce stress in the suction block during use.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a Continuation of U.S. application Ser. No. 14 / 222,529 filed on Mar. 21, 2014, now U.S. Pat. No. 10,221,847 issued on Mar. 5, 2019, which claims the benefit of U.S. Provisional Application No. 61 / 852,762 filed on Mar. 21, 2013, the disclosure of which is hereby incorporated by reference.BACKGROUND OF THE INVENTION[0002]The present invention relates generally to high pressure pumps, and more particularly to the fluid end of such pumps.[0003]High-pressure reciprocating fluid pumps have been used for many years in various industries to pressurize incompressible fluids to pressures upwards of 10 kpsi. A primary use of such pumps is for pumping drilling fluid downhole, such as mud, during oil well drilling. Such pumps are also used to provide pressurized fluid for fracking operations, water-blasting, slurry transport for oil fields, coal slurry transport from a mine to a power station, and other applications where liquids w...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): F04B49/22F04B39/12F04B39/10
CPCF04B49/22F04B39/10F04B39/12
InventorDYER, DEWEY FRANCIS
OwnerFIRSTEX IND INC