Liquid ring screw pump design

Abstract

Liquid ring screw pump ( 1 ) including a housing ( 2 ) with a suction inlet section ( 4 ) and a pressure outlet section ( 3 ) and within the housing ( 2 ) rotatably provided Archimedes screw rotor driven by a motor ( 6 ) via a shaft, the inlet section ( 4 ) and outlet section ( 3 ) each provided with connecting means for suction and pressure piping respectively. The pump and motor is constructed with a single leg or support or single pair of legs or supports ( 10 ) provided preferably at a weight balance point between the motor ( 6 ) and pump ( 1 ).

1 . A liquid mid ring screw pump including a housing with a suction inlet section and a pressure outlet section and within the housing rotatably provided Archimedes screw rotor driven by a motor via a shaft, the inlet section and outlet section each provided with connecting means for suction and pressure piping respectively, wherein the pump and motor is constructed with a single leg or support or single pair of legs or supports provided at a weight balance point between the motor and pump. 
     
     
         2 . The liquid ring screw pump according to  claim 1 , wherein each leg or support is provided with two wings or flaps longitudinally arranged in relation to the pump and motor, each with through going screw holes for the attachment of the pump/motor to the floor or ground where it is supposed to be placed or used. 
     
     
         3 . The liquid ring screw pump according to  claim 1  wherein the leg or support is constructed as an integrated part of the pressure outlet section of the pump. 
     
     
         4 . The liquid ring screw pump according to the previous  claim 3 , that wherein the leg or support and pressure section is be made of metal such as aluminum or steel by casting in one piece and then machined to finished product, whereby on the other hand the inlet suction section and pump housing is be made of polymer composite material. 
     
     
         5 . The liquid ring screw pump according to  claim 1 , wherein the pump and motor are provided with two bearings, one at the rear end of the electrical motor and the other at the pressure outlet section of the pump in an integral recess of the pressure outlet section of the pump.