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Valve-seat interface architecture

A valve seat and head technology, which is applied in the field of valve-seat joint structure, can solve the problems of downtime, not avoiding pump leakage, etc.

Inactive Publication Date: 2012-07-25
PRAD RES & DEV LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this buys the operator time to replace the pump in case of a possible leak, it is still not an effective way to prevent the pump from leaking in the first place without requiring the pump to be replaced
Therefore, at a minimum, even if a catastrophic leak is avoided due to early acoustic detection, the downtime of the pump still exists

Method used

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  • Valve-seat interface architecture
  • Valve-seat interface architecture
  • Valve-seat interface architecture

Examples

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Embodiment Construction

[0016] Embodiments are described with reference to specific high pressure positive displacement pump assemblies used for fragmentation operations. However, other positive displacement pumps can also be used. Regardless, the embodiments described herein employ a valve-seat interface in which the valve or valve seat is configured with features that accommodate valve or valve seat deformation when the valve strikes the valve seat.

[0017] refer to figure 1 , depicting the image 3 Embodiment of valve 100 of pump assembly 310 is shown. As shown, valve 100 is a standard positive displacement pump configuration having a head 180 coupled to alignment legs 125 below it. but, figure 1 The valve 100 shown also includes an embodiment of a contoured valve insert 101 disposed around the head 180 . Contoured valve insert 101 can be made from urethane or other conventional polymers. However, as described below, the contoured valve insert 101 is configured to accommodate deformation of...

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Abstract

A pump assembly with valve-seat interface architecture configured to extend the life of pump components and the assembly. A valve (100) of the pump assembly is equipped with a conformable valve insert (101) that is configured with a circumferential component having the capacity to. reduce the radial strain' of its own deformation upon its striking of a valve seat at the interface within the pump assembly. The circumferential component may include a concave surface (150) about the insert, a rounded abutment (175) at the strike surface of the insert, or a core mechanism (200) within the insert that is of greater energy absorbing character than surrounding material of the insert. Additionally, the valve seat itself may be configured for more even wear over time and equipped with a conformable seat insert to reduce wear on the valve insert.

Description

technical field [0001] Embodiments described herein relate to valve assemblies for positive displacement pumps used in high pressure applications. In particular, embodiments of contoured valve seals or inserts and valve seat configurations are described to construct valve-seat interfaces. Background technique [0002] Positive displacement pumps are commonly used in oil fields for large, high pressure applications involving the extraction of hydrocarbons. A positive displacement pump may include a plunger that is cranked back and forth relative to a chamber to violently create high and low pressures on the chamber. This is a good choice for high pressure applications. In practice, positive displacement pumps are often employed when fluid pressures in excess of thousands of pounds per square inch (PSI) need to be generated. [0003] Positive displacement pumps can be configured to be of considerable size and used in a variety of large-scale oilfield operations, such as cem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K25/00
CPCF04B53/1022F04B49/243F04B53/1032F04B53/1025F04B53/1097Y10T137/7868
Inventor 菲利普·甘比尔托西米奇·瓦戈让-路易斯·佩辛
Owner PRAD RES & DEV LTD