FLOW DISTRIBUTION Russian patent published in 1996 - IPC

FIELD: fitting making, distribution, shutting and control fixtures in chemical, petroleum and other branches of industry. SUBSTANCE: flow distributor has case 1 with inlet 5 and outlet 2 and 3 branch pipes. Shutting member, disc 6 is mounted in case for turning and movement in direction of outlet branch pipe, is coupled to drive through driving shaft 10 and carrier 9 manufactured in the form of two concentric bushings. Outer bushing 8 is rigidly coupled to driving shaft 10 and inner bushing 7 - to shutting chamber 6. Process of change-over of flow distributor includes three stages: warding off of disc from seat 4 towards axis of outlet branch pipe, turn of disc to match its symmetry axis with axis of the other outlet branch pipe, pressing of disc against seat of outlet branch pipe. Flow distributor is fitted with additional shaft 11 and movement distributors 15, 16 put on shafts 10, 11 and kinematically coupled to drive. At stage of warding off of disc outlet element 17 of drive in rotation additional shaft 11 by means of distributor 15. Shaft 11 id provided with eccentric collet 12 which moves disc 6 away from seat 4 with the help of connecting rod 13 put on it and hinged with other end to inner bushing 7 of carrier 9. At stage of turn with the use of distributor 16 kinematically coupled to drive driving shaft 10 is set in rotation together with carrier 9 put on it and turns disc 6 to the other outlet branch pipe. At stage of pressing driving shaft 10 coupled to distributor 16 stops and distributor 15 and additional shaft 11 continue rotation and press disc 6 to seat 4 of outlet branch pipe via eccentric collet 12 and connecting rod 13. EFFECT: enhanced reliability by automation of translational and rotational movements of shutting member, enhanced degree of sealing thanks to insertion of power closing of sealing surfaces. 3 cl, 6 dwg