WO2009035231A3 - Hydraulic control device for turbine valve - Google Patents

Hydraulic control device for turbine valve Download PDF

Info

Publication number
WO2009035231A3
WO2009035231A3 PCT/KR2008/005205 KR2008005205W WO2009035231A3 WO 2009035231 A3 WO2009035231 A3 WO 2009035231A3 KR 2008005205 W KR2008005205 W KR 2008005205W WO 2009035231 A3 WO2009035231 A3 WO 2009035231A3
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
control device
hydraulic pressure
valve
turbine
Prior art date
Application number
PCT/KR2008/005205
Other languages
French (fr)
Other versions
WO2009035231A2 (en
Inventor
Chang Sung Hwang
Dan Hyeon Kim
Sang Gwon O
Seok Gyu Jeong
Seung Yong Lee
Original Assignee
Chang Sung Hwang
Dan Hyeon Kim
Sang Gwon O
Seok Gyu Jeong
Seung Yong Lee
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 Chang Sung Hwang, Dan Hyeon Kim, Sang Gwon O, Seok Gyu Jeong, Seung Yong Lee filed Critical Chang Sung Hwang
Publication of WO2009035231A2 publication Critical patent/WO2009035231A2/en
Publication of WO2009035231A3 publication Critical patent/WO2009035231A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/02—Use of accumulators and specific engine types; Control thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D19/00—Starting of machines or engines; Regulating, controlling, or safety means in connection therewith
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K1/00—Steam accumulators
    • F01K1/16—Other safety or control means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/30—Accumulator separating means
    • F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2201/00—Accumulators
    • F15B2201/50—Monitoring, detection and testing means for accumulators
    • F15B2201/515—Position detection for separating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/25—Pressure control functions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

A hydraulic control device for controlling a turbine valve is disclosed. The hydraulic control device includes a hydraulic pressure generating unit (1), a hydraulic pressure control unit (2), a hydraulic pressure actuating unit (3) and hydraulic attachments. The hydraulic pressure generating unit has an oil tank (12), an oil cooler (14) and a variable delivery type hydraulic pump (10). The hydraulic pressure control unit has a safety valve (20) and a servo valve (24). The hydraulic pressure actuating unit has a servo cylinder (30) and accumulators (32). The hydraulic attachments have a pressure reducing valve (40) and dump valves (42) and (43). Unlike the conventional control device, the present invention has a relatively simple structure. In addition, the pressure in a system can be maintained in a stable condition, and accuracy in controlling the turbine valve is increased, thus enhancing the quality of electricity supply created by a turbine.
PCT/KR2008/005205 2007-09-10 2008-09-04 Hydraulic control device for turbine valve WO2009035231A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070091631A KR100774568B1 (en) 2007-09-10 2007-09-10 Hydraulic type turbine valve control device for turbine
KR10-2007-0091631 2007-09-10

Publications (2)

Publication Number Publication Date
WO2009035231A2 WO2009035231A2 (en) 2009-03-19
WO2009035231A3 true WO2009035231A3 (en) 2009-05-07

Family

ID=39061302

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/005205 WO2009035231A2 (en) 2007-09-10 2008-09-04 Hydraulic control device for turbine valve

Country Status (2)

Country Link
KR (1) KR100774568B1 (en)
WO (1) WO2009035231A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2980250B1 (en) * 2011-09-21 2013-10-11 Snecma SERVOVALVE WITH REFRIGERATION CIRCUIT
KR101868271B1 (en) * 2017-03-20 2018-06-15 두산중공업 주식회사 Device and method for suppling of working fuid
KR101868273B1 (en) * 2017-03-28 2018-06-15 두산중공업 주식회사 Control device for suppling of working fluid

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475710A (en) * 1980-05-22 1984-10-09 Kraftwerk Union Aktiengesellschaft Electro-hydraulic control actuator for turbine valves
KR930023600A (en) * 1992-05-30 1993-12-21 김연수 Control device of variable displacement hydraulic pump
US5295783A (en) * 1993-04-19 1994-03-22 Conmec, Inc. System and method for regulating the speed of a steam turbine by controlling the turbine valve rack actuator
JP2004132359A (en) * 2002-07-17 2004-04-30 Snecma Moteurs Assistance and urgent drive mechanism for motor accessory

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475710A (en) * 1980-05-22 1984-10-09 Kraftwerk Union Aktiengesellschaft Electro-hydraulic control actuator for turbine valves
KR930023600A (en) * 1992-05-30 1993-12-21 김연수 Control device of variable displacement hydraulic pump
US5295783A (en) * 1993-04-19 1994-03-22 Conmec, Inc. System and method for regulating the speed of a steam turbine by controlling the turbine valve rack actuator
JP2004132359A (en) * 2002-07-17 2004-04-30 Snecma Moteurs Assistance and urgent drive mechanism for motor accessory

Also Published As

Publication number Publication date
KR100774568B1 (en) 2007-11-08
WO2009035231A2 (en) 2009-03-19

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