Doosan Heavy Industries & Construction Co., Ltd

Doosan Enerbility Co., Ltd.

Cheol Hong Kim

Young Ho Ju

Jung Chan Kim

Jung Ho Lee

Tae Sub Oh

Dong Woo Kang

Jin Woong Ha

Dong Wook Kim

Seok Jin Jang

Kyu Man Kim

Jae Cheol Kim

Sung Jong Ahn

Tae Jun Yun

Hae Sang Jeong

Seong Jong Yang

Seong Yong Jeong

Woo Seong Song

Seong Jong An

Disclosed herein are a spray nozzle for an attemperator and an attemperator including the spray nozzle. An attemperator according to an embodiment includes: a steam transfer pipe through which steam is transferred; a fixed pipe which is fixed to an outer surface of the steam transfer pipe; and a spray nozzle, which is coupled to the fixed pipe, disposed in the steam transfer pipe and configured to spray cooling water into the steam transfer pipe. The spray nozzle includes, on an outer circumferential surface thereof, at least one support that protrudes toward the fixed pipe. The spray nozzle is spaced apart from the fixed pipe.

Spray nozzle for attemperators and attemperator including the same

Disclosed herein is a fixture for a bucket for a turbine blade. The fixture includes a rotor wheel that includes a plurality of dovetail grooves. A platform seat is formed between the dovetail grooves and provided with a first insertion groove in a circumferential direction. A bucket includes a platform that inserts into one of the dovetail grooves. A base platform disposed on an upper surface of the platform includes a second insertion groove at a position facing the first insertion groove.

Assembling method of a bucket and a fixture for a bucket for a turbine blade

A turbine nozzle box includes an annular outer ring plate, an annular nozzle unit, and an annular inner ring plate. The annular outer ring plate is operable to be disposed in a turbine such that an outer peripheral surface thereof is adjacent to an inner peripheral surface of an inner casing of the turbine. The annular nozzle unit is disposed adjacent to an inner peripheral surface of the outer ring plate. The annular inner ring plate is disposed such that an outer peripheral surface thereof is adjacent to an inner peripheral surface of the nozzle unit. The nozzle unit includes a plurality of segment blocks circumferentially installed at an arc angle. The segment blocks are disposed at an inlet end of a first-stage nozzle unit, and an outlet end of the first-stage nozzle unit is open.

Turbine nozzle box

Disclosed herein is a combustion oscillation estimating apparatus which estimates combustion oscillation in a combustion chamber connected with a burner so that a flame is injected by the burner, the combustion oscillation estimating apparatus including an input unit which receives data including an inlet pressure of the burner, and a control unit which detects a pressure in the combustion chamber based on a shape from the burner to the combustion chamber, a temperature distribution in the combustion chamber, and a shape of the flame. The combustion oscillation estimating apparatus may improve estimation accuracy of the combustion oscillation in the combustion chamber.

Apparatus for estimating oscillation within combustion device

There is provided a turbine including a rotor wheel including a plurality of dovetail grooves and at least one insertion groove, the dovetail grooves and the insertion groove arranged in a circumferential direction of the rotor wheel; a plurality of first buckets, each of the first buckets including a vane, a platform provided at a first end portion of the vane, and a dovetail provided at the platform and having a shape corresponding to a corresponding dovetail groove; at least one second bucket including a vane, a platform provided at a first end portion of the vane, and at least one protrusion portion provided at the platform and configured to be inserted into a corresponding insertion groove of the insertion groove; and a fixing member configured to be inserted through the protrusion portion and the rotor wheel and configured to restrict radial movement of the second bucket.

Turbine with bucket fixing means

Provided is a turbine including a rotor wheel including a plurality of dovetail grooves and a insertion groove, the insertion groove including a first catching groove; a plurality of first buckets, each of the plurality of first buckets including a vane, a platform provided at a first end portion of the vane, and a dovetail provided at the platform and having a shape corresponding to the dovetail groove; a second bucket including a vane, a platform provided at a first end portion of the vane, and a protrusion portion and configured to be inserted into the insertion groove, the protrusion portion including a second catching groove; and a fixing member configured to be inserted into each of the first and second catching grooves, the fixing member configured to restrict radial movement of the second bucket.

Growing community of inventors

Gyeonggi-do, South Korea

Cheol Hong Kim