Spring nozzle for injecting condensed liquid into polymerisation reactor comprises inlet pipe and sleeve with orifices sliding inside and at pipe end returned by spring

摘要

The liquid injector nozzle comprises an inlet pipe (1) with a sleeve (2) sliding inside and at the end of the pipe. The position of the sleeve along the pipe is induced by the supply liquid pressure (3) and the return force of a calibrated spring (4). The sleeve has a number of orifices (10,11). The spring is fixed at the downstream end of the pipe to a stop by a hollow circular piece onto an internal circular edge (5) in the pipe. The other end is fixed by another circular piece held by a nut (6) screwed onto a rod (7) integral with the sleeve. When the nozzle is out of use the circular stop (8) rests on the edge of the supply pipe end. The pipe edge and the sleeve stop have support surfaces (12,13) giving good sealing.