Spiral composite oil-gas mixed transportation pump

Abstract

The invention discloses a spiral composite oil-gas mixed transportation pump, and relates to the technical field of positive displacement pumps. The spiral composite oil-gas mixed transportation pumpcomprises a driving device, a pump shaft, a magnetic coupling, a pump cover, a pump shell and a composite rubber-coated propeller, the output end of the driving device is magnetically connected with the pump shaft in a spaced mode, a flange plate at the output end of the driving device is connected with the pump cover and the pump shell through a magnetic coupling connecting fixing sleeve, a bearing seat is fixedly arranged inside the pump cover, the pump shaft is rotationally connected into the bearing seat through a bearing, and the composite rubber-coated propeller is fixedly connected to the front part of the pump shaft and located in the pump shell; and the magnetic coupling connecting fixing sleeve is arranged on the rear part of the pump shaft, and the magnetic pump is located between the pump cover and the driving device. According to the spiral composite oil-gas mixed transportation pump, the defects of short service life, high cost and unstable operation of an existing oil-gas mixed transportation pump are overcome, the service life can be prolonged, the cost can be lowered, and operation is stable.

Description

technical field [0001] The invention relates to the technical field of positive displacement pumps, in particular to a screw composite oil-gas mixed transport pump. Background technique [0002] In the production process of the oil field, the output liquid (including mixed media such as oil, gas, and water) needs to be transported to the joint station by means of a delivery pump. [0003] The commonly used delivery pumps are: oil-gas mixed-transport twin-screw pumps, plunger-type reciprocating pumps, etc. From the actual field application, there are certain deficiencies, which seriously affect the normal production of oil fields, such as: the operation of oil-gas mixed-transport twin-screw pumps Unstable, short service life, often running for more than a year, due to cavitation and air lock, the mutual meshing of the screws and the excessive wear of the fitting gap between the screw and the screw sleeve, the required displacement and pressure cannot be output, and it needs t...

AI Technical Summary

Problems solved by technology

[0003] The commonly used delivery pumps are: oil-gas mixed-transport twin-screw pumps, plunger-type reciprocating pumps, etc. From the actual field application, there are certain deficiencies, which seriously affect the normal production of oil fields, such as: the operation of oil-gas mixed-transport twin-screw pumps Unstable, short service life, often running for more than a year, due to cavitation and air lock, the mutual meshing of the screws and the excessive wear of the fitting gap between the screw and the screw sleeve, the required displacement and pressure cannot be output, and it needs to be overhauled once a year Replacing the screw, screw sleeve and other accessories is equivalent to replacing a new pump, which is costly and difficult to maintain

Another example is the plunger type oil-gas mixed transport pump, the displacement, the pressure are unstable, and the vibration is large.

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