Title:
LINEAR MOTOR-DRIVEN FRACTURING PUMP
Document Type and Number:
WIPO Patent Application WO/2021/218585
Kind Code:
A1
Abstract:
A linear motor-driven fracturing pump, comprising at least one hydraulic end (1). Several plungers (4) are provided in parallel on each hydraulic end (1). Each plunger (4) is correspondingly connected to one linear motor (3). The linear motors (3) drive the plungers (4) to move linearly back and forth. The hydraulic end (1) also is provided with several control valves (5). The control valves (5) are used for controlling the intake or discharge of a liquid when the plungers (4) are moving. With the linear motors (3) and the plungers (4) being connected directly, and with the linear motors (3) driving the plungers (4) to move linearly back and forth, parts such as a crankshaft connecting rod mechanism in a conventional fracturing pump are obviated, the structure of the fracturing pump is simplified, the reliability and transmission efficiency of the fracturing pump are effectively increased, the linear motors run steadily and have a constant speed, and pulsations of an output flow and of pressure are theoretically and fundamentally eliminated; meanwhile, because the stroke of the linear motors can be extended, at the same time as requirements for a low number of strokes and a large displacement are satisfied, vibrations of the entire pump and consumption of wearable elements of the hydraulic end are reduced.
Inventors:
XIE MEIYING (CN)
TANG PING (CN)
LUO QUAN (CN)
CHENG JIAN (CN)
TANG PING (CN)
LUO QUAN (CN)
CHENG JIAN (CN)
Application Number:
PCT/CN2021/085874
Publication Date:
November 04, 2021
Filing Date:
April 08, 2021
Export Citation:
Assignee:
SICHUAN HONGHUA PET EQUIPMENT (CN)
International Classes:
F04B17/03; F04B35/04
Foreign References:
| CN111648933A | 2020-09-11 | |||
| CN110094320A | 2019-08-06 | |||
| CN108757374A | 2018-11-06 | |||
| CN203297049U | 2013-11-20 | |||
| US20160348658A1 | 2016-12-01 |
Attorney, Agent or Firm:
SICHUAN LIJIU LAW FIRM (CN)
Download PDF: