Slip sheet expander

Abstract

The invention discloses a slip sheet expander. The slip sheet expander comprises a stator comprising an air cylinder and a rotor which is eccentrically mounted inside the air cylinder of the stator, wherein an exhaust end cover is arranged on one side of the stator, and an output shaft end cover is mounted on the other side of the stator; a bearing positioning groove is formed in the inner side of the exhaust end cover; a bearing sleeve is mounted inside the bearing positioning groove; one end of a rotor shaft movably sleeves the bearing sleeve, and the other end of the rotor shaft extends out of the output shaft end cover so as to output power; slip sheets sliding in the radial direction are mounted inside rotor grooves; a fluid through hole is formed in the bearing positioning groove of the exhaust end cover; a fluid passage is formed in a rotor shaft end face positioned inside the bearing positioning groove in the axial direction; one or more branch passages are formed in the bottom of each rotor groove in the radial direction; the branch passages are communicated with the fluid passage. The slip sheet expander has the advantages that the slip sheets are controlled by a high pressure fluid under the condition that the rotor is free of initial speed and can automatically stretch out of the rotor grooves at the right moment, so that normal startup of the slip sheet expander is realized, the slip sheet expander is reliable to use, and miniaturization is realized.

Description

technical field [0001] The invention belongs to a mechanical device for realizing energy conversion by using a fluid medium, in particular to a sliding vane expander. Background technique [0002] An expander is a device that converts the pressure energy contained in high-pressure gas, liquid or gas-liquid mixture into mechanical energy. [0003] The structure of the sliding vane expander is as follows figure 1 As shown, it has a stator 1 including a cylinder, a rotor 2 is installed in the stator cylinder, the axis of the rotor 2 deviates from the axis of the stator cylinder, and a plurality of axial rotor slots 3 are opened on the outer circumference of the rotor 2, and the rotor slot 3 A slide plate 4 that slides radially is placed inside. Due to the eccentric configuration of the rotor in the cylinder, the space volume formed by the inner wall of the cylinder and the outer surface of the rotor is asymmetrical, and the space volume of one arc section is narrow while that...

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