Multi-way valve with fan-shaped flow channel sealing pair

1. A multi-way valve with fan-shaped flow channel sealing pair comprising a metering outlet welding flange ( 1 ), a lower O-ring seal ( 2 ), a sliding support ring ( 3 ), a valve body ( 4 ), a middle rotary spool ( 5 ), a valve body O-ring seal ( 6 ), a sealing gasket ( 7 ), fluid inlet welding flanges ( 8 ), connecting bolt and nuts ( 9 ), an upper porous plane body ( 10 ), a connecting electric actuator intermediate flange ( 11 ), an internal hexagon adjusting fixing plate ( 12 ), an adjusting nut ( 13 ), a conical roller bearing ( 14 ), a shaft head O-ring seal ( 15 ), a porthole plug ( 16 ), a floating gating ring ( 17 ), a floating gating ring O-ring seal ( 18 ), an auxiliary sealing ring ( 19 ), an auxiliary sealing support ring ( 20 ), a bellow or dish-shaped spring ( 21 ), a seating ring socket head adjusting nut ( 22 ), a collection and transmission outlet welding flange ( 23 ) etc., the multi-way valve with fan-shaped flow channel sealing pair being characterized in that: the floating gating ring ( 17 ) that is applied with contact specific pressure by an elastic component and an upper porous plane body ( 10 ) form a gating plane sealing pair; a plurality of fan-shaped flow channel oil inlet holes are annularly and uniformly distributed on the mating surface of the upper porous plane body ( 10 ); the inner part of the middle rotary spool ( 5 ) is used as a public flow-guide passage; and the floating gating ring ( 17 ) is configured such that it changes gradually from the upper fan-shaped flow channel to the lower round-shaped flow channel.

2. The multi-way valve with fan-shaped flow channel sealing pair according to claim 1 , characterized in that: an individual well fluid inlet flow channel of the upper porous plane body ( 10 ) are configured such that it changes gradually from horizontal round sections to fan-shaped flow channels in the vertical section when turning into 90° direction, wherein the area of fan-shaped sections is equal to that of the round horizontal sections.

3. The multi-way valve with fan-shaped flow channel sealing pair according to claim 1 , characterized in that: the floating gating ring ( 17 ) is connected with a positioning pin which is embedded into the middle rotary spool ( 5 ) to make the floating gating ring ( 17 ) rotate along the middle rotary spool ( 5 ) all the time and to maintain the sealing aperture of the fan-shaped flow channel of the floating gating ring ( 17 ) in alignment with the mating seal aperture of one of the fan-shaped flow channels of the upper porous plane body ( 10 ).

4. The multi-way valve with fan-shaped flow channel sealing pair according to claim 1 , characterized in that: the upper, lower and the radial moving clearances are adjusted to a suitable amount by turning the adjusting nut ( 13 ) from the outside of the multi-way valve to make it move down so that the force on the conical roller bearing ( 14 ) is transmitted to the middle rotary spool ( 5 ), then the internal hexagon adjusting fixing plate ( 12 ) is fixed.

5. The multi-way valve with fan-shaped flow channel sealing pair according to claim 1 , characterized in that: after a porthole plug ( 16 ) is opened and the seating ring socket head adjusting nut ( 22 ) is adjusted by a special adjusting tool, the force is applied to the floating gating ring ( 17 ) by the elastic component.