Double-shaft internally tangent type bidirectional transmission oil-gas multiphase pump

Abstract

The invention discloses a double-shaft internally tangent type bidirectional transmission oil-gas multiphase pump which comprises a pump body and impellers. An upper rotating shaft and a lower rotating shaft are arranged in the pump body, wherein one end of one rotating shaft is connected with a motor, a driving gear and a transmission gear are arranged on each rotating shaft, wherein the lower driving gear on the lower rotating shaft is internally tangent and meshed with a rack in the forward impeller, the upper driving gear on the upper rotating shaft is internally tangent and meshed with a rack on the reverse impeller, the transmission gears on the two rotating shafts are meshed with each other, an original guide vane is replaced by the reverse impeller, at the moment, a supercharging unit is composed of one forward impeller and one reverse impeller, and after transmission of main transmission gears and the transmission gears, the rotating directions of the forward impeller and the reverse impeller are opposite to form a counter-rotating impeller set, so that when the multiphase pump works, the impellers in the forward direction and the reverse direction do work at the same time, the power of one existing supercharging unit is equivalent to the power of two traditional supercharging units, and the efficiency of the oil-gas multiphase pump is improved.

Description

technical field [0001] The invention relates to an oil-gas mixed delivery pump, in particular to an oil-gas mixed delivery pump with two-shaft inner-cut two-way transmission. Background technique [0002] At present, in the existing oil-gas mixed pump, a booster unit is composed of an impeller and a guide vane, and the whole pump body is composed of multiple booster units, so when working, the impeller rotates to do work, and the The guide vane is still and plays the role of drainage, so that the fluid enters the next-stage impeller with the minimum water loss. Therefore, the axial distance of the entire oil-gas mixed pump is very long. When it is necessary to increase the power of the mixed pump When this happens, it is necessary to increase the number of booster units, which will make the axial length of the mixed pump longer, resulting in large axial vibration and noise, unstable operation and other defects, and the existing oil-gas mixed pumps are An external motor is n...

AI Technical Summary

Problems solved by technology

[0002] At present, in the existing oil-gas mixed pump, a booster unit is composed of an impeller and a guide vane, and the whole pump body is composed of multiple booster units, so when working, the impeller rotates to do work, and the The guide vane is still and plays the role of drainage, so that the fluid enters the next-stage impeller with the minimum water loss. Therefore, the axial distance of the entire oil-gas mixed pump is very long. When it is necessary to increase the power of the mixed pump When this happens, it is necessary to increase the number of booster units, which will make the axial length of the mixed pump longer, resulting in large axial vibration and noise, unstable operation and other defects, and the existing oil-gas mixed pumps are An external motor is required to drive the impeller to rotate, making the volume of the pump body larger

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