Fracturing pump fluid end plunger hole sealing structure

Active Publication Date: 2021-09-10
SOUTHWEST PETROLEUM UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the in-hole sealing of high-pressure plunger pumps, the existing technology is relatively mature and there are many solutions. However, due to reasons such as high pressure and fracturing fluid erosion, the sealing packing sometimes still has poor sealing effect. Due to the situation, it needs to be replaced frequently, but the replacement will also have a certain impact on the stability of the installation and connection. Therefore, looking for a solution with better connection and sealing stability after replacement can effectively improve the convenience of maintenance and operation during on-...

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  • Fracturing pump fluid end plunger hole sealing structure
  • Fracturing pump fluid end plunger hole sealing structure
  • Fracturing pump fluid end plunger hole sealing structure

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and Simplified ...

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Abstract

The invention discloses a fracturing pump fluid end plunger hole sealing structure which comprises a sealing mechanism arranged in a plunger hole of a valve box body. The sealing mechanism comprises two sets of sealing pieces, an end cover and a shaft sleeve, the end cover and the shaft sleeve are used for fixing the two sets of sealing pieces, the end cover and the shaft sleeve are both provided with through holes, the shaft sleeve is pressed tightly through the end cover, and then the two sets of sealing pieces abut against the interior of the plunger hole through the shaft sleeve; and each set of sealing pieces comprises a buffer seat, a buffer element, a sliding ring, a rotating ring and a sealing ring. An inner hole sealing structure of a high-pressure plunger pump is improved, so that the sealing pieces can maintain the sealing effect more stably, the safety coefficient of field use is improved, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of oil exploitation equipment, in particular to the technical field of fracturing equipment, in particular to a sealing structure for a plunger hole at the hydraulic end of a fracturing pump. Background technique [0002] In the development of oil and gas fields, fracturing technology is widely used in stimulation construction. Fracturing technology is a method of using liquid pressure to form cracks in oil and gas formations. The most important equipment in fracturing construction is high-pressure plunger pumps, which are generally composed of multiple fracturing vehicles equipped with high-pressure plunger pumps. The plunger pump set is under construction. The high-pressure plunger pump is divided into two parts: the power end and the liquid end. The power end converts the energy of the diesel engine or the motor into kinetic energy and transmits it to the liquid end through the plunger. The main componen...

Claims

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Application Information

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IPC IPC(8): F04B53/00F04B53/14F04B53/22E21B43/26
CPCF04B53/00F04B53/143F04B53/22E21B43/2607
Inventor 于学会王安帅曾兴昌周小明张士顺
Owner SOUTHWEST PETROLEUM UNIV
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