Long life spiral transduction apparatus

Abstract

The invention discloses a long-life spiral energy exchange device, wherein, a stator of the long-life spiral energy exchange device comprises an outer cylinder and an elastic stator rubber core which is made of flexible elastic materials; the outerwall of the stator rubber core has a cylindrical shape which is matched with the shape of a cavity body of the outer cylinder, and the inner wall of the stator rubber core has a double-head or multi-head spiral cavity which is matched with a rotor; the stator rubber core is fixed inside a cavity of the outer cylinder in the axial direction and the circumferential direction; an annular hollow inner tube which is also made of flexible elastic materials is arranged inside an annular space between the stator rubber core and the outer cylinder and sleeved on the outerwall of the stator rubber core; a slurry inlet / outlet is arranged on the inner tube; an inner tube joint is arranged on the slurry inlet / outlet; a slurry inlet / outlet is also arranged on the side wall of the stator rubber core; and a joint is arranged on the slurry inlet / outlet and connected with the inner tube joint through a duct. The spiral energy exchange device can make up for the abrasion of the stator and the enlarged gap caused by shrinkage of the stator rubber core when the pressure is increased through expansion of the inner tube, and maintains high volumetric efficiency for a long time.

Description

technical field [0001] The invention provides a spiral energy conversion power device, especially a long-life spiral energy conversion device. Background technique [0002] The spiral transduction equipment mainly includes a stator and a rotor. The stator is a cylinder, which is a spiral chamber with two or several heads, and the rotor is a spiral steel shaft with one or several heads. The screw energy conversion device can be a screw booster, a screw pump, or a screw drill. [0003] High-pressure jet drilling tools can greatly increase the drilling speed, but to obtain a higher drilling speed, it is necessary to provide high-pressure mud. There are two ways to increase the mud pressure to realize high-pressure jet drilling. One is to increase the pump pressure of the surface mud pump, but the frictional pressure drop along the way is too large when the mud reaches the nozzle of the drill bit, so that the drilling efficiency is low; A supercharger is added before the flow ...

AI Technical Summary

Problems solved by technology

After a period of use of the spiral transducer with this structure, both the rotor and the stator have wear problems, the gap between them is enlarged, the volumetric efficiency is reduced, and even the working ability is lost.

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