Sealing ring of plunger fracturing pump

A fracturing pump and sealing ring technology, applied in the direction of engine seals, pump components, variable capacity pump components, etc., can solve the problem that the pure rubber material A ring has weak wear resistance, short service life of the sealing ring, and resistance of the A ring. Weak pressure capacity and other problems, to achieve good wear resistance, improve sealing ability, reduce the effect of contact area

Inactive Publication Date: 2020-01-10
GUANGZHOU JST SEALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, when such a structure is used in practice, because the plunger fracturing pump has the characteristics of high pressure, and in the working condition of sediment, the A ring formed by the rubber material of the traditional structure has a weak compressive capacity, and in a high-pressure environment Breakdown and leakage will occur; at the same time, during the working process of the plunger fracturing pump, the plunger reciprocates and repeatedly rubs against the A ring, and the A ring made of pure rubber material has weak wear resistance, resulting in a short service life of the sealing ring

Method used

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  • Sealing ring of plunger fracturing pump

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Embodiment Construction

[0021] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] A preferred embodiment of the sealing ring of a plunger fracturing pump of the present invention, such as figure 1 As shown, the sealing ring of the plunger fracturing pump includes a stacked pressure bearing ring 1 and a sealing ring 2, and the pressure bearing ring 1 and the sealing ring 2 are coaxially arranged. In this embodiment, there are two sealing rings 2. In other embodiments, according to the requirement of sealing strength, there may be three, four, etc. of the sealing rings 2 . The side of the plunger fracturing pump seal ring close to the pressure bearing ring 1 is defined as the top side, that is, the pressure bearing ring 1 is arranged on the top of...

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Abstract

The invention relates to the technical field of sealing rings, and discloses a sealing ring of a plunger fracturing pump. The sealing ring of the plunger fracturing pump comprises a pressure-bearing ring and sealing rings distributed in a stacked manner; the pressure-bearing ring and the sealing rings are coaxially arranged; the sealing rings are arranged by at least two; the pressure-bearing ringincludes a substrate layer located inside and a protective layer wrapping the substrate layer; the substrate layer is made of an elastic material; and the protective layer is made of a wear-resistantmaterial. The exterior of the substrate layer of the pressure-bearing ring is further provided with the protective layer, the protective layer is made of the wear-resistant material, and the wear-resistant material is high in wear resistance and strength, so that the pressure-bearing ring has higher wear resistance and compressive strength, and the service life of the sealing ring is prolonged.

Description

technical field [0001] The invention relates to the technical field of sealing rings, in particular to a sealing ring of a plunger fracturing pump. Background technique [0002] The plunger fracturing pump has the characteristics of high pressure, compact structure, high efficiency and convenient flow adjustment, and is widely used in hydraulic presses, construction machinery, downhole tools and other industries. The seal used for the plunger fracturing pump requires reliable sealing, long service life, high pressure resistance and not easy to wear during operation. [0003] The authorized announcement number is CN204061867U, and the authorized announcement date is 2014.12.31. The Chinese utility model patent discloses a high-pressure fracturing pump sealing ring. The high-pressure fracturing pump sealing ring includes several A rings, B rings and C Ring, A ring is set on the top, C ring is set on the bottom, A ring is made of elastic material, there are several layers of B...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/3236F04B53/00
CPCF04B53/00F16J15/3236
Inventor 李厚宁罗盛昌
Owner GUANGZHOU JST SEALS TECH
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