SU1585558A1 - Ejector - Google Patents

Abstract

The invention relates to inkjet technology and can be used for pumping gases. The purpose of the invention is to increase the economy with variable operating modes and expand the range of regulation. The ejector includes a housing 1, a nozzle 2 for supplying a passive medium, a mixing chamber 3, a pipeline (T) 4 supplying an active medium, an adjustable nozzle 5 of the active medium with sliding elements (E) 6 fixed to the end face T 4, and an adjusting sleeve (B) 7 installed with the possibility of reciprocating movement, interacting with O 6 and turning them. The ejector is equipped with a rod 8 and a guide vane 9 in the form of radial blades 10 fixed on B 7 and rod 8, B 7 is placed in T 4 and E 6 is spring-loaded, made of elastic material and have the shape of sections of the side surface of a truncated cone that are facing smaller bases to the displacement chamber 3, with longitudinal stiffening ribs 11 on their outer surface oriented along their forming. At the same time, E 6 are placed with the formation of an annular nozzle 12 and mutually partial overlapping of adjacent E 6, are connected with T 4 by means of hinges 13 fixed on stiffening ribs 11, and the latter are arranged with their ends contacting B 7. associated with pressure changes or back pressure behind the mixing chamber 3, the nozzle 5 is adjusted by moving the stem 8 and B 7, acting on the ends of the fins 11 on the E 6, which, when rotated using the hinges 13, change the flow sections of the nozzles 5 and 12. In this case, the nozzle 12 can t be completely blocked. During the reverse movement of the rod 8 and 7, the nozzle 5 reduces the flow area due to the reverse rotation of the E 6 on the hinges 11 due to the action of the springs. The rod 8 is connected to B 7 blades 10 of the guiding device 9, which ensures the elimination of possible disturbances in the flow of the active medium. 4 il.

Description

The invention relates to inkjet technology and can be used for pumping gas.

The purpose of the invention is to increase the economy in variable operation modes and to expand the control ranges.

FIG. 1 shows an ejector, longitudinal section; in fig. 2 - nozzle of the active medium, longitudinal section; in fig. 3 — nozzle of the active medium, view from the side of the mixing chamber; in fig. 4 - sliding elements, view from the side of the pipeline for supplying the active medium; in fig. 5 - view of a single sliding element.

The ejector includes a housing 1, a nozzle 2 for supplying a passive medium, a mixing chamber 3, a pipeline 4 for supplying an active medium, an adjustable nozzle 5 for an active medium with sliding elements b fixed to the end of pipeline 4, and an adjusting sleeve 7 installed with the possibility of reciprocating movement interactions with sliding elements 6 and their rotation. The ejector is equipped with a rod 8 and a guide vane 9 in the form of radial blades 10 fixed to the sleeve 7 and the rod 8, the sleeve 7 is placed in the pipeline 4 for supplying the active medium, and the sliding elements 6 are spring-loaded, made of elastic material and have the shape of sections of the lateral surface of the truncated a cone, facing smaller bases to the mixing chamber 3, with longitudinal stiffening ribs 11 on their outer surface oriented along them forming, with the sliding elements 6 being placed with the formation of an annular nozzle 12 and many partial overlap of adjacent elements 6 associated with the conduit 4 by means of hinges, fixed to the stiffening ribs 11, and the latter are arranged to contact with their end faces the end face of the sleeve.

The ejector works as follows. The active medium is fed through conduit 4 to the nozzle 5 and enters the mixing chamber 3, where it mixes with the passive medium flowing through the nozzle 2 and the annular nozzle 12. In the mixing chamber 3, the passive medium is compressed, which

provides its supply to the subsequent high-pressure line. When changing the mode of operation associated with changes in pressure of media or counter pressure, the nozzle 5 is adjusted by moving the rod 8 and the sleeve 7, acting on the ends of the ribs 11 on the moving elements 6, which, when rotated using hinges, change the flow sections of the nozzles 5 and

10 12. In this case, the nozzle 12 can be completely blocked. During the reverse movement of the rod 8, the movable elements return to their original position, since they are spring-loaded. The rod 8 is connected to the sleeve 7 through

15 blades 10 of the guiding apparatus 9, which ensures the elimination of possible disturbances in the flow of the active medium.

Claims (1)

Invention Formula 0 Ejector, comprising a housing, a passive medium inlet connection, a mixing chamber, an active medium supply pipeline, an adjustable active medium nozzle with sliding elements fixed to The 5 end of the pipeline and the regulating sleeve, installed with the possibility of reciprocating movement, interacting with the sliding elements and their rotation, characterized in that 0 that, in order to increase efficiency at variable operating modes and expand the range of regulation, the ejector is equipped with a rod and a guide vane in the form of radial blades fixed 5 on the sleeve and the stem, the sleeve is placed in the pipeline for supplying the active medium, and the sliding elements are spring-loaded, made of elastic material and have the form of sections of the lateral surface 0 truncated cone, facing smaller bases to the displacement chamber, with longitudinal stiffening ribs on their outer surface, oriented along their forming, with the sliding elements placed with the formation of an annular nozzle and mutual overlap of adjacent elements, connected to the pipeline by means of hinges fixed on the stiffeners, and the latter are located with the possibility of their ends contacting with the end of the sleeve. // 1585558 5 6