Water blocking cooling cylinder for mud pump cylinder liner piston

Abstract

The invention provides a water blocking cooling cylinder for a mud pump cylinder liner piston. The water blocking cooling cylinder comprises an upper cylinder and a lower cylinder, the upper cylinderand the lower cylinder are combined into a cylindrical shape, an upper skeleton is fixed to the outer edge of the bottom of the upper cylinder, a lower skeleton is fixed to the outer edge of the top of the lower cylinder, the upper skeleton is connected to the lower skeleton in a buckled mode, spring buckles are installed on the outer sides of the left ends of the upper skeleton and the lower skeleton, hinges are installed on the outer side of the right ends of the upper skeleton and the lower skeleton, the inner sides of the upper cylinder, the lower cylinder, the upper skeleton and the lowerskeleton form an annular boss, a cooling water pipe is installed at the top of the upper cylinder, the top of the cooling water pipe extends from the upper cylinder, a threaded joint is arranged at the extended top of the cooling water pipe, the bottom of the cooling water pipe extends into the upper cylinder, a water spray nozzle is installed at the extended bottom of the cooling water pipe, andan opening of the water spray nozzle is in a shape of a crescent. The water blocking cooling cylinder high in installing sealing performance, and pollution caused by an oil-water mixture formed by splashing of cooling water is avoided; and assembly and disassembly are convenient, and the cooling effect is improved.

Description

technical field [0001] The invention relates to the technical field of petroleum exploitation machinery, in particular to a water-retaining cooling cylinder for cylinder sleeve pistons of petroleum mud pumps. Background technique [0002] The mud pump used in the field of oil drilling is a machine that transports mud or water and other flushing fluids into the borehole during the drilling process. The commonly used mud pump is piston or plunger type, and the crankshaft of the pump is driven by the power machine. The crankshaft passes through the The crosshead then drives the piston to reciprocate in the cylinder liner. Under the alternate action of suction and discharge valves, the purpose of pressure feeding and circulating flushing fluid is realized. [0003] The piston in the mud pump reciprocates in the cylinder liner to promote the suction and discharge of mud, and the mud is discharged to form a high pressure (maximum 52MPa). During this operation, the mud forms grea...

AI Technical Summary

Problems solved by technology

During this operation, the mud forms great resistance to the piston, and the piston runs under frictional load in the cylinder liner, resulting in high temperature (150°C), which seriously affects the service life of the piston

[0004] The existing cylinder liner piston cooling parts have the following deficiencies: first, the cooling water splashes seriously, and mixes with the lubricating oil adjacent to the mud pump to form an oil-water mixture, which pollutes the environment and soil; second, the cooling effect is poor

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