US 2019/0376684 A1 · DESUPERHEATER AND SPRAY NOZZLES THEREFOR

Abstract

A desuperheater includes a ring body defining an axial flow path and one or more spray nozzle assemblies around the ring body. Each spray nozzle assembly is connected to a separate water manifold and steam manifold to provide cooling water and atomizing steam through the spray nozzle assemblies. A nozzle sleeve of each spray nozzle assembly has a solid, unitary body having first, second, and third fluid passages formed through the body. The first fluid passage is in fluid communication with the water manifold and with a first exit aperture formed in a second end of the body. The second fluid passage is in fluid communication with the steam manifold and with a second exit aperture formed in the second end of the body. The third fluid passage is in fluid communication with the steam manifold and with a third exit aperture formed in the second end of the body. The second and third exit apertures are positioned on opposite sides of the first exit aperture.

Claims38

Dependent claims

A desuperheater, comprising:

a ring body defining an axial flow path;
a plurality of spray nozzle assemblies disposed around the ring body;
a water manifold connected to each of the spray nozzle assemblies for providing cooling water to each of the spray nozzle assemblies;
and
a steam manifold connected to each of the spray nozzle assemblies for providing atomizing steam to each of the spray nozzle assemblies, separately from the cooling water;
wherein each spray nozzle assembly comprises a nozzle sleeve that extends into the ring body, each nozzle sleeve comprising:
a solid, unitary body;
a first fluid passage formed through the body and in fluid communication with the water manifold and with a first exit aperture formed in a second end of the body;
a second fluid passage formed through the body and in fluid communication with the steam manifold and with a second exit aperture formed in the second end of the body;
and
a third fluid passage formed through the body and in fluid communication with the steam manifold and with a third exit aperture formed in the second end of the body;
wherein
the second and third exit apertures are positioned on opposite sides of the first exit aperture.

10 more elements

A spray nozzle assembly for a desuperheater, the spray nozzle assembly comprising:

a housing having a body and a cap flange secured to the body, the body and the cap flange defining a bore within the housing;
a first aperture formed through the body and intersecting the bore;
a second aperture formed through the cap flange and intersecting the bore;
and
a nozzle sleeve disposed within the bore, the nozzle sleeve comprising:
a solid, unitary sleeve body;
a first fluid passage formed through the sleeve body and in fluid communication with the first aperture and with a first exit aperture formed in a second end of the sleeve body;
a second fluid passage formed through the sleeve body and in fluid communication with the second aperture and with a second exit aperture formed in the second end of the sleeve body;
and
a third fluid passage formed through the sleeve body and in fluid communication with the second aperture and with a third exit aperture formed in the second end of the sleeve body;
wherein
the second and third exit apertures are positioned on opposite sides of the first exit aperture.

9 more elements

A desuperheater, comprising:

a ring body defining an axial flow path;
a plurality of spray nozzle assemblies disposed around the ring body;
a water manifold connected to each of the spray nozzle assemblies for providing cooling water to each of the spray nozzle assemblies;
and
a steam manifold connected to each of the spray nozzle assemblies for providing atomizing steam to each of the spray nozzle assemblies, separately from the cooling water;
wherein each spray nozzle assembly comprises a nozzle sleeve that extends into the ring body, each nozzle sleeve comprising:
a solid, unitary body;
a first fluid passage formed through the body and in fluid communication with the steam manifold and with a plurality of first exit apertures formed in a second end of the body;
a second fluid passage formed through the body and in fluid communication with the water manifold;
a third fluid passage formed through the body and in fluid communication with the steam manifold;
an annular cavity intersecting the second and third fluid passages;
and
a disk shaped cavity in fluid communication with the annular cavity and with a plurality of second exit apertures;
wherein
the second exit apertures intersect the first exit apertures within the body.

12 more elements

A spray nozzle assembly for a desuperheater, the spray nozzle assembly comprising:

a housing having a body and a cap flange secured to the body, the body and the cap flange defining a bore within the housing;
a first aperture formed through the body and intersecting the bore;
a second aperture formed through the cap flange and intersecting the bore;
and
a nozzle sleeve disposed within the bore, the nozzle sleeve comprising:
a solid, unitary body;
a first fluid passage formed through the body and in fluid communication with the second aperture and with a plurality of first exit apertures formed in a second end of the body;
a second fluid passage formed through the body and in fluid communication with the first aperture;
a third fluid passage formed through the body and in fluid communication with the first aperture;
an annular cavity intersecting the second and third fluid passages;
and
a disk shaped cavity in fluid communication with the annular cavity and with a plurality of second exit apertures;
wherein
the second exit apertures intersect the first exit apertures within the body.

11 more elements

Dependencies are inferred from the claim text.

Desuperheater and spray nozzles therefor

Life of this patent

Desuperheater and spray nozzles therefor

Life of this patent

Abstract

Claims38