Adjustable jet pump

Abstract

The invention relates to an adjustable jet pump which comprises an upper connector, a pump body, a lower connector, a power liquid connector and a lower-pressure liquid connector. The adjustable jet pump is characterized by further comprising a bridge type channel movably connected between the pump body and the lower connector, two or more high-pressure flow channels and one low-pressure flow channel are formed in the bridge type channel in the axial direction, and nozzles different in size are arranged at the positions, at the outlet end of the bridge type channel, of the high-pressure flow channels. A valve rod is further arranged in the lower connector, one end of the valve rod is connected with a power liquid flow channel of the lower connector, and the other end of the valve rod is in contact with the end face of the bridge type channel in an abutting mode. One of the nozzles is communicated with an inlet of the pump body by rotating the bridge type channel, and meanwhile the inlet ends of the high-pressure flow channels where the nozzles are located are communicated with the valve rod. The inlet end of the low-pressure flow channel of the bridge type channel is communicated with a low-pressure liquid flow channel of the lower connector all the time. The adjustable jet pump can meet the requirement for the nozzle size in different conditions, the working procedure is simplified to a certain extent, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a jet pump for ground application, in particular to an adjustable jet pump capable of rotating nozzles. Background technique [0002] The jet pump is a kind of fluid machinery and mixed reaction equipment that uses the turbulent diffusion of turbulent jet (high-pressure power fluid) to transfer energy and mass, and has a wide range of applications in the engineering field. Since the jet pump itself has no moving parts, it has a series of unique advantages such as simple structure, good sealing, reliable operation and low cost, so the use of the jet pump can greatly simplify the entire process and equipment, especially in high temperature, high pressure, radiation, etc. , Inflammable, explosive, conveying medium containing solid particles and underwater and other special working conditions, it also shows its unique advantages, such as agriculture, mining metallurgy, oil exploitation, etc. In the petroleum industry, jet pumps ar...

AI Technical Summary

Problems solved by technology

[0004] Since the jet pump has a variety of nozzles and throat sizes, it is necessary to replace the nozzle and throat combinations of different sizes to match the working conditions during oil production in offshore oil wells, while conventional jet pumps can only be dismantled multiple times. pump to replace jet pump nozzles, time consuming

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