Light five-cylinder plunger pump

Abstract

The invention discloses a light five-cylinder plunger pump. The light five-cylinder plunger pump comprises a power end assembly and a hydraulic end assembly, wherein the power end assembly is connected with the hydraulic end assembly; the cylinder spacing of the light five-cylinder plunger pump is 9in; the power end assembly comprises a crank shaft, the crank shaft comprises six crank necks and five crank throws, the crank necks and the crank throws are fixedly connected, the distance between rotating centers of the crank necks and the crank throws is 101.6 mm, and the stroke distance of the light five-cylinder plunger pump is 203.2 mm. According to the light five-cylinder plunger pump, power is increased by increasing stroke, reducing transmission ratio and improving bearing capacity, andmeanwhile, dead weight is reduced by reducing the cylinder spacing, the tooth number of a big gear and the tooth thickness of the big gear and a pinion. The light five-cylinder plunger pump meets conditions of working in the area with severe well cementing operation conditions in aspects of weight and power simultaneously, and working efficiency is increased.

Description

technical field [0001] The invention relates to oil and gas exploitation equipment, in particular to a light five-cylinder plunger pump. Background technique [0002] In the field of oil and gas exploitation, well cementing is used to isolate various oil and gas water layers and interlayers, prevent oil, gas and water from flowing upward, and create conditions for subsequent downhole operations. The design scheme of cementing construction should be realized through cementing equipment. The cementing equipment includes a cementing vehicle, which is equipped with a plunger pump, and the plunger pump is the main power machine used in the process of conveying the cementing fluid. In the conventional cementing operation area, the existing plunger pump can meet the operation requirements; in the area with severe cementing operation conditions, it is necessary to use a plunger pump with larger power and displacement than the conventional cementing operation area. Generally speaki...

AI Technical Summary

Problems solved by technology

[0003] In areas with harsh working conditions, the existing plunger pumps either have sufficient power but are overweight, and the total weight of the cementing vehicle does not meet the regulatory requirements; or the weight is within the specified range, but the rated input power is insufficient, which will cause output The pressure and flow rate do not meet the requirements of the working conditions of the cementing operation, reducing the operating efficiency

The existing plunger pumps cannot meet the conditions of operation in areas with harsh cementing conditions in terms of weight and power at the same time, and the work efficiency is low

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