[go: up one dir, main page]

ES2052424A2 - Method and device for minimizing heat-rate deterioration in steam turbine - Google Patents

Method and device for minimizing heat-rate deterioration in steam turbine

Info

Publication number
ES2052424A2
ES2052424A2 ES09200005A ES9200005A ES2052424A2 ES 2052424 A2 ES2052424 A2 ES 2052424A2 ES 09200005 A ES09200005 A ES 09200005A ES 9200005 A ES9200005 A ES 9200005A ES 2052424 A2 ES2052424 A2 ES 2052424A2
Authority
ES
Spain
Prior art keywords
flow
steam
steam turbine
control valve
plug member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
ES09200005A
Other languages
Spanish (es)
Other versions
ES2052424R (en
ES2052424B1 (en
Inventor
Jr George Joseph Silvestri
Joseph Davids
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ES2052424A2 publication Critical patent/ES2052424A2/en
Publication of ES2052424R publication Critical patent/ES2052424R/es
Application granted granted Critical
Publication of ES2052424B1 publication Critical patent/ES2052424B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Control Of Turbines (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE: To provide a method and a device for incrementally controlling a flow of a first stage of 9 turbine without adding or throtting a flow control valve. CONSTITUTION: In an atomic power steam turbine 18, deterioration of a heat consumption ratio is generated due to excessive flow margine. For minimizing this, a plug member 48 selectively disconnects a flow passage for steam passing a first stage nozzle ring 20. The plug member 48 is selectively inserted before the flow passage between adjacent nozzle blades 30 of the nozzle ring 20 by detection of a timing when a flow of steam passing a control valve to supply steam to the steam turbine 18 exceeds a desired flow value to the steam turbine 18 by a monitoring device. The plug member 48 effectively reduces the flow passing the nozzle ring 20 without throttling steam by the control valve to prevent deterioration of efficiency.
ES9200005A 1991-01-07 1992-01-03 APPARATUS AND METHOD OF IMPROVING THE HEAT CONSUMPTION UNDER THE NOMINAL LOAD OF STEAM TURBINES. Expired - Lifetime ES2052424B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63772091A 1991-01-07 1991-01-07

Publications (3)

Publication Number Publication Date
ES2052424A2 true ES2052424A2 (en) 1994-07-01
ES2052424R ES2052424R (en) 1996-05-16
ES2052424B1 ES2052424B1 (en) 1997-01-01

Family

ID=24557106

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9200005A Expired - Lifetime ES2052424B1 (en) 1991-01-07 1992-01-03 APPARATUS AND METHOD OF IMPROVING THE HEAT CONSUMPTION UNDER THE NOMINAL LOAD OF STEAM TURBINES.

Country Status (4)

Country Link
JP (1) JPH04295104A (en)
CA (1) CA2058815A1 (en)
ES (1) ES2052424B1 (en)
IT (1) IT1252713B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101625794B1 (en) * 2015-04-06 2016-05-30 두산중공업 주식회사 Nozzle box for turbine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6131604A (en) * 1984-07-25 1986-02-14 Ishikawajima Harima Heavy Ind Co Ltd Plugging method for low-temperature turbine nozzle
US4780057A (en) * 1987-05-15 1988-10-25 Westinghouse Electric Corp. Partial arc steam turbine
EP0364726A1 (en) * 1988-10-14 1990-04-25 Westinghouse Electric Corporation Axial flow steam turbine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6131604A (en) * 1984-07-25 1986-02-14 Ishikawajima Harima Heavy Ind Co Ltd Plugging method for low-temperature turbine nozzle
US4780057A (en) * 1987-05-15 1988-10-25 Westinghouse Electric Corp. Partial arc steam turbine
EP0364726A1 (en) * 1988-10-14 1990-04-25 Westinghouse Electric Corporation Axial flow steam turbine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, CD ROM PAJ F01 1976-1993 39 & JP 61031604 A (ISHIKAWAJIMA HARIMA HEAVY IND. CO. LTD.) *

Also Published As

Publication number Publication date
JPH04295104A (en) 1992-10-20
ITMI913490A0 (en) 1991-12-24
ES2052424R (en) 1996-05-16
ITMI913490A1 (en) 1993-06-24
CA2058815A1 (en) 1992-07-08
IT1252713B (en) 1995-06-26
ES2052424B1 (en) 1997-01-01

Similar Documents

Publication Publication Date Title
ES2014754A6 (en) Method for reducing valve loops for improving stream turbine efficiency
JP2747543B2 (en) Method of operating a steam turbine device at low load level
WO1996006268A3 (en) Method and apparatus for regulating and augmenting the power output of a gas turbine
ES2052424A2 (en) Method and device for minimizing heat-rate deterioration in steam turbine
JPS53105602A (en) Apparatus for preventing overheating of water supply pump in water supply system for boiler in heat power plant
JPS5494143A (en) Boiler freezing preventing device
SU853120A1 (en) Method of controlling heat generating turbine
JPS53129788A (en) Control method for controlling flow rate or pressure by operating two or more valves
JPS54135944A (en) Operation controlling method of power plant
JPS5747151A (en) Control method for warm-water boiler of waste heat recovery type
JPS57119118A (en) Power generation controller
JPS57210106A (en) Controller for turbine
JPS53146052A (en) Power plant with low boiling point medium turbine
JPS5557608A (en) Control method of combined power plant and its device
AU6691000A (en) A valve unit for regulating the flow-rate of fuel gas in dependence on the flow-rate of water, particularly for water heaters
JPS575519A (en) Gas turbine plant using low calorific power gas
JPS5672225A (en) Controlling device for operation of gas turbine equipped with waste-heat boiler
JPS5332203A (en) Subterranean heat turbine control means
JPS5670175A (en) Boiler plant for voltage transformed operation
JPS648322A (en) Gas turbine fuel control device
JPS55112812A (en) Combined-cycle power plant
JPS5739416A (en) Controlling method for flow rate of water supply
JPS526801A (en) Marine turbine plant
JPS562404A (en) Steam turbine control method
JPS57167518A (en) Method of preventing bearing for gas bearing expansion turbine from seizing

Legal Events

Date Code Title Description
EC2A Search report published

Date of ref document: 19920103

Kind code of ref document: B1

Effective date: 19920103

FA2A Application withdrawn

Effective date: 19980324