MULTIPHASE ROTOR-BLADE PUMP AND METHOD OF ITS USE Russian patent published in 2012 - IPC F04C2/344 

FIELD: machine building.

SUBSTANCE: invention relates to energy machine-building and may be used in the constructions of multiphase rotor-blade pumps for pumping fluid comprising a mixture of gas and liquid environments, as well as to the manner of their operation. The pump includes a rotor with an internal cavity and feed the shoulder blades. Case 4 consists of a stator with an eccentric working chamber inside which rotor 1 is eccentrically placed, and distribution and compensatory suction chamber 7 and discharge chamber 8 are placed on the outer side of the stator. Case 4 is located inside case-sump 10 that has suction port 11 and pressure port 12 with attached suction cavity 13 and injection cavity 14, respectively. Pipe 11 is communicated with chamber 7 located in front of rotor 1 and pressure port 12 communicates with chamber 8 located behind rotor 1. The pump has suction line 19 for the fluid located in the middle of the body of cavity-tank 10 in which the flow rate of liquid phase of the working body is close to zero, equipped with dynamic pump 20, working body 21 of which is either connected with drive shaft 17 or is provided with an independent drive shaft, and is made to connect suction line 19 with the cavities of rotor 1 and stator, through its working body with the ability to create a closed circulation for the amount of fluid needed to ensure sealing of the mechanism gaps.

EFFECT: expansion of functional capabilities of rotor-blade pump and improved reliability of its operation.

12 cl, 2 dwg