JET MIXER OF CONDENSATE-FEED PATH OF POWER UNIT (VERSIONS) Russian patent published in 2025 - IPC B01F25/10 

FIELD: performing operations.

SUBSTANCE: invention relates to designs of jet mixers and can be used, in particular, for mixing flows of heating steam condensate and the main condensate of the path of a power unit of a power plant with a deaerator-free thermal circuit. First version of the jet mixer comprises an external cylindrical housing, the inlet end of which is made in the form of a diffuser, and the outlet end is in the form of a confuser. Inside the external cylindrical housing, an internal perforated cylindrical housing is installed eccentrically relative to its longitudinal axis of symmetry, the inlet end of which is fixed on the confuser bushing installed inside the external cylindrical housing, and the outlet end – on the diffuser bushing installed inside the external cylindrical housing. To the external cylindrical housing a branch pipe is connected, made in the form of a diffuser, the internal volume of which is connected to the cavity formed between the internal surface of the wall of the external cylindrical housing, the external surface of the wall of the internal perforated cylindrical housing and end surfaces of the confuser and diffuser bushings. Outlet of the branch pipe is located in the area of the widest part of the above cavity. Cylindrical holes in the inner perforated cylindrical housing are tangential and are made at an angle to its cross section and its longitudinal axis of symmetry. Outlets of the above holes are oriented towards the outlet end of the external cylindrical housing. Second version of the jet mixer comprises an external cylindrical housing, the inlet end of which is made in the form of a diffuser, and the outlet end is in the form of a confuser. Inside the external cylindrical housing there is an internal perforated cylindrical housing installed coaxially with it, one of the ends of which is made in the form of a perforated cone and is oriented towards the output end of the external cylindrical housing. Other end of the inner perforated cylindrical housing is connected to the outlet of the branch pipe connected to the outer cylindrical housing. Cylindrical holes in the inner perforated cylindrical housing and its end, made in the form of a perforated cone, are tangential and are made at an angle to its cross section and its longitudinal axis of symmetry. Outlets of the above holes are oriented towards the outlet end of the external cylindrical housing. Support rod attached to the inner surface of the wall of the outer cylindrical housing is attached to the outer surface of the wall of the inner perforated cylindrical housing. Third version of the jet mixer comprises an external cylindrical housing, the inlet end of which is made in the form of a diffuser, and the outlet end is in the form of a confuser. Inside the external cylindrical housing there is an internal perforated cylindrical housing coaxially installed, the ends of which are made in the form of perforated cones. Branch pipe is connected to the side wall of the external cylindrical housing, the outlet of which is connected to the side wall of the internal perforated cylindrical housing. Cylindrical holes in the inner perforated cylindrical housing and its ends, made in the form of perforated cones, are tangential and are made at an angle to its cross section and its longitudinal axis of symmetry. Outlets of the above holes are oriented towards the outlet end of the external cylindrical housing. Support rod attached to the inner surface of the wall of the outer cylindrical housing is attached to the outer surface of the wall of the inner perforated cylindrical housing.

EFFECT: reduction of hydraulic resistance of jet mixer, elimination of necessity to use drive for creation of vortex flow in mixer.

6 cl, 3 dwg