MAIN NOZZLE, COMBUSTOR, AND METHOD FOR MANUFACTURING MAIN NOZZLE

• US 20190323710A1
• Filed: 12/15/2017
• Published: 10/24/2019
• Est. Priority Date: 12/20/2016
• Status: Active Grant

• Current Assignee: Mitsubishi Heavy Industries, Ltd.
• Original Assignee: Mitsubishi Heavy Industries, Ltd.
• Inventors: MORIWAKI, Atsushi, MIYAMOTO, Kenji, SAITO, Keijiro
• Granted Patent: US 10,969,101 B2
• Time in Patent Office: Days
• CPC Class Codes: F01D 17/085 to temperature
• CPC Class Codes: F01D 25/00 Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
• CPC Class Codes: F02C 7/00 Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants controlling F02C9/00
• CPC Class Codes: F02C 9/00 Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants controlling air intakes F02C7/057; controlling turbines F01D; controlling compressors F04D27/00; controlling in general G05
• CPC Class Codes: F23N 2225/16 burner temperature
• CPC Class Codes: F23N 2231/28 preventing flash-back or blow-back
• CPC Class Codes: F23N 2235/26 Fuel nozzles
• CPC Class Codes: F23N 2241/20 Gas turbines
• CPC Class Codes: F23N 5/105 using electrical or electromechanical means
• CPC Class Codes: F23N 5/245 using electrical or electromechanical means
• CPC Class Codes: F23R 2900/00018 Manufacturing combustion chamber liners or subparts
• CPC Class Codes: F23R 3/14 by using swirl vanes
• CPC Class Codes: F23R 3/286 having fuel-air premixing devices F23R3/30 takes precedence
• CPC Class Codes: F23R 3/343 Pilot flames, i.e. fuel nozzles or injectors using only a very small proportion of the total fuel to insure continuous combustion ignition in gas-turbine plants F02C7/264; pilot flame igniters F23Q9/00
• CPC Class Codes: F23R 3/36 Supply of different fuels
• CPC Class Codes: G01K 1/14 Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
• CPC Class Codes: G01K 7/02 using thermoelectric elements, e.g. thermocouples
• CPC Class Codes: Y02T 50/60 Efficient propulsion technologies, e.g. for aircraft

Abstract

The present invention provides a main nozzle of a combustor, a plurality of the main nozzles are to be installed on an outer peripheral side of a pilot nozzle of the combustor at an interval in a circumferential direction of the pilot nozzle, the main nozzle includes a main nozzle body extending in an axial line; a swirl vane protruded from an outer peripheral surface of the main nozzle body in a radial direction of the axial line, and is configured to allow a fluid flowing downstream in a direction of the axial line to swirl around the axial line; and temperature sensors installed on the main nozzle body so as to be disposed on a tangential line to a mean line of the swirl vane drawn between a vane ventral surface and a vane dorsal surface of the swirl vane, at a downstream end portion of the swirl vane.

Claims

1. A main nozzle of a combustor, a plurality of the main nozzles are to be installed on an outer peripheral side of a pilot nozzle of the combustor at an interval in a circumferential direction of the pilot nozzle, the main nozzle comprising:

a main nozzle body extending in an axial line thereof;

a swirl vane protruded from an outer peripheral surface of the main nozzle body in a radial direction of the axial line, and is configured to allow a fluid flowing downstream in a direction of the axial line to swirl around the axial line; and

a plurality of temperature sensors installed on the main nozzle body so as to be disposed along a tangential line to a mean line which is drawn between a ventral surface and a dorsal surface of the swirl vane, at a downstream end portion of the swirl vane.

2. A combustor comprising:

a pilot nozzle; and

the plurality of main nozzles according to claim 1 which are installed on an outer peripheral side of the pilot nozzle at an interval in the circumferential direction.

3. A method for manufacturing the main nozzles as described in claim 1, comprising directly drawing the temperature sensors on the main nozzle body by using a drawing device.