KR100856540B1 - Test Block for Control Type Hydraulic Actuator - Google Patents

Test Block for Control Type Hydraulic Actuator Download PDF

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Publication number
KR100856540B1
KR100856540B1 KR1020080030161A KR20080030161A KR100856540B1 KR 100856540 B1 KR100856540 B1 KR 100856540B1 KR 1020080030161 A KR1020080030161 A KR 1020080030161A KR 20080030161 A KR20080030161 A KR 20080030161A KR 100856540 B1 KR100856540 B1 KR 100856540B1
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South Korea
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port
hydraulic actuator
test block
control type
valve
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KR1020080030161A
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Korean (ko)
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정환욱
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주식회사 에네스코
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • 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
    • F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
    • F15B19/005—Fault detection or monitoring
    • 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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/005—Leakage; Spillage; Hose burst
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S303/00—Fluid-pressure and analogous brake systems

Abstract

A control-type hydraulic actuator test block is provided to diagnose performance of a servo valve simultaneously with measuring the amount of leak from the servo valve. A control-type hydraulic actuator test block includes a pressure port connection port(110), a supply port connection port(120), a drain port(130), and a pilot supply port connection port(140). The pressure port connection port connects a pressure port through which hydraulic fluid is introduced from a pump. The supply port connection port connects a supply port which supplies the hydraulic fluid to a cylinder through a servo valve. The drain port blocks a return port and drains the hydraulic fluid. The pilot supply port connection port connects a fluid path formed inside a lower end cap of an actuator and a pilot supply port. The pilot supply port generates movement of spool in the servo valve.

Description

컨트롤타입 유압엑츄에이터용 테스트블럭{.}Test Block for Control Type Hydraulic Actuator

본 발명은 발전소 터빈밸브의 유압엑츄에이터에 장착되어 공급되는 유압을 컨트롤하는 서브밸브와 유압엑츄에이터의 로어앤드캡 사이에 장착되어 서보밸브의 누설유량을 측정하기 위한 컨트롤타입 유압엑츄에이터용 테스트블럭에 관한 것이다.The present invention relates to a test block for a control type hydraulic actuator for measuring the leakage flow rate of the servo valve mounted between the sub-valve for controlling the hydraulic pressure supplied to the hydraulic actuator of the power plant turbine valve and the lower end cap of the hydraulic actuator. .

본 발명에 관한 컨트롤타입 유압엑츄에이터용 테스트블럭은 컨트롤타입의 발전소 터빈밸브 유압엑츄에이터에 적용되는 것으로서, 유압엑츄에이터에 장착되어 공급되는 유압을 컨트롤하는 서브밸브와 유압엑츄에이터의 로어앤드캡 사이에 장착되어 서보밸브의 누설유량을 측정하고 서보밸브의 성능을 진단하기 위한 도구이다. The test block for the control type hydraulic actuator according to the present invention is applied to a control type turbine valve hydraulic actuator of a control type, and is mounted between a subvalve for controlling the hydraulic pressure supplied to the hydraulic actuator and a lower end cap of the hydraulic actuator. It is a tool for measuring the leakage flow of the valve and diagnosing the performance of the servovalve.

발전소의 터빈출력제어는 터빈에 유입되는 증기량을 터빈증기 밸브가 조정함으로써 이루어지는데, 상기 터빈 밸브의 조정은 유압엑츄에이터가 담당하게 된다. 한편, 유압엑츄에이터의 작동은 도 1에 도시한 바와같이, 유압이 유압엑츄에이터의 실린더 하부에 작용을 하여 이루어지는데, 유압엑츄에이터의 위치조정은 유압엑츄에이터의 로어앤드캡에 장착되는 서보밸브가 입력신호에 비례하는 유량을 유압엑츄에이터의 실린더 내에 공급시켜 줌으로써 이루어진다. 도 1에서 FAS(Fluid Actuator Supply)는 엑츄에이터로 공급되는 유량으로서 실제 피스톤하부에 작용하여 피스톤의 팽창력을 가감하는 요소이고, ETS(Fluid Emergency Trip Supply)는 디스크덤프밸브(Disk Dump Valve) 하부로 공급되는 유량으로서 터빈제어의 이상신호 발생시 상기 ETS 배관을 차단하고 내부유량을 배유하여 엑츄에이터로 들어가는 ETS 유량을 자동으로 차단하여 유압 엑츄에이터 내부의 유량을 배유부(FCD)로 배유시키는 요소이다.Turbine output control of the power plant is achieved by the turbine steam valve to adjust the amount of steam flowing into the turbine, the hydraulic valve is responsible for the adjustment of the turbine valve. On the other hand, as shown in Figure 1, the operation of the hydraulic actuator is performed by the hydraulic pressure acting on the cylinder lower portion of the hydraulic actuator, the position adjustment of the hydraulic actuator is the servo valve mounted on the lower end cap of the hydraulic actuator to the input signal This is achieved by supplying a proportional flow rate into the cylinder of the hydraulic actuator. In FIG. 1, FAS (Fluid Actuator Supply) is a flow rate supplied to the actuator, which acts on the lower part of the piston to add or decrease the expansion force of the piston, and ETS (Fluid Emergency Trip Supply) is supplied to the bottom of a disk dump valve. When the abnormal signal of the turbine control occurs, the ETS pipe is shut off and the internal flow rate is drained to automatically cut off the ETS flow rate entering the actuator to distribute the flow rate inside the hydraulic actuator to the oil discharge unit FCD.

참고로, 도 2는 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터의 로어앤드캡의 포트 참고도이고, 도 3은 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터의 로어앤드캡에 장착되는 서보밸브의 포트 구성도이다. 도 2에 도시한 바와같이, 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터의 로어앤드캡의 포트는 펌프로부터 유압이 유입되는 압력포트(Pressure Port)(110"), 상기 압력포트를 통해 유입되는 유압을 서보밸브를 통하여 실린더 내부로 공급하는 공급포트(Port 1)(120"), 유압유를 배유부(FCD)로 드레인(배유)시키기 위한 리턴포트(Return Port)(130"), 유압엑츄에이터의 로어앤드캡 내부에 가공된 유로를 통하여 서보밸브 스풀의 움직임을 발생시키는 파일롯공급포트(Pilot supply Port)(140")를 포함하여 이루어지고, 도 3에 도시한 바와같이, 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터의 로어앤드캡에 장착되는 서보밸브의 포트(110', 120', 130', 140')는 상기 유압엑츄에이터의 로어앤드캡의 포트에 대응되는 구성으로 이루어지며, 로어앤드캡의 포트에 대응되지 않는 나머지 포트(Port 2)(150')는 사용되지 않게 된다.For reference, FIG. 2 is a reference diagram of a lower end cap of a control type hydraulic actuator of a power plant turbine valve, and FIG. 3 is a diagram illustrating a port configuration of a servo valve mounted to a lower end cap of a control type hydraulic actuator of a power plant turbine valve. As shown in Figure 2, the lower end cap port of the control type hydraulic actuator of the power plant turbine valve is a pressure port (110 ") through which the hydraulic pressure flows from the pump, the hydraulic pressure flowing through the pressure port servo Supply port (Port 1) (120 ") for supplying the inside of the cylinder through the valve, Return port (130") for draining (draining) the hydraulic oil to the oil discharge part (FCD), Lower end cap of the hydraulic actuator Pilot supply port (140 ") for generating the movement of the servo valve spool through the flow channel processed therein, and as shown in Figure 3, the control type of the hydraulic actuator of the power plant turbine valve The ports 110 ', 120', 130 'and 140' of the servovalve mounted on the lower end cap are configured to correspond to the ports of the lower end cap of the hydraulic actuator, and do not correspond to the ports of the lower end cap. Remainder Bit (Port 2) (150 ') it can no longer be used.

한편, 상기 유압엑츄에이터의 신뢰성 검사를 하기 위해서는 유압엑츄에이터의 내부 누설을 측정하여야 하는데, 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터에서는 유압엑츄에이터가 정지되어 있을 때 배유되는 유압유 뿐만 아니라, 유압엑츄에이터가 닫히는 방향으로 움직일 때 서보밸브를 통하여 배유되는 유압유도 배유부(FCD)로 함께 배출되기 때문에, 유압엑츄에이터의 내부 누설을 정확히 측정할 수 없는 문제점이 있었다.On the other hand, in order to check the reliability of the hydraulic actuator, the internal leakage of the hydraulic actuator should be measured. In the control type hydraulic actuator of the power plant turbine valve, not only the hydraulic oil drained when the hydraulic actuator is stopped, but also the hydraulic actuator moves in the direction of closing. When the hydraulic oil drained through the servo valve is also discharged to the oil discharge part FCD, there is a problem that the internal leakage of the hydraulic actuator cannot be accurately measured.

따라서 본 발명은 상기와 같은 종래 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터의 문제점을 해결코자 발명된 것으로서, 유압엑츄에이터에 장착되어 공급되는 유압을 컨트롤하는 서브밸브와 유압엑츄에이터의 로어앤드캡 사이에 장착되어 서보밸브의 누설유량을 측정하는 컨트롤타입 유압엑츄에이터용 테스트블럭을 제공하는 것을 그 목적으로 한다.Therefore, the present invention was invented to solve the problems of the control type hydraulic actuator of the conventional power plant turbine valve as described above, and is mounted between the sub-valve controlling the hydraulic pressure supplied to the hydraulic actuator and the lower end cap of the hydraulic actuator. It is an object of the present invention to provide a test block for a control type hydraulic actuator that measures the leakage flow rate of a valve.

상기와 같은 목적을 달성하기 위하여, 본 발명에 따른 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭은, 발전소 터빈밸브의 유압엑츄에이터에 장착되어 서보밸브의 누설유량을 측정하기 위한 것으로서, 전체적으로 직육면체 형상으로 상면과 하면의 네귀퉁이에는 유압엑츄에이터의 로어앤드캡에 장착되기 위한 서브밸브의 관통공에 대응하는 관통공이 구비되며, 상면과 하면 사이에는 펌프로부터 유압이 유입되는 압력포트(Pressure Port)를 연결하는 압력포트연결포트, 상기 압력포트를 통해 유입되는 유압을 서보밸브를 통하여 실린더 내부로 공급하는 공급포트(Port 1)를 연결하는 공급포트연결포트, 유압유를 배유부(FCD)로 드레인(배유)시키기 위한 리턴포트(Return Port)를 차단하는 한편 리턴포트를 배유부가 아닌 외부로 배유시키기 위한 드레인포트, 유압엑츄에이터의 로어앤드캡 내부에 가공된 유로를 통하여 서보밸브 스풀의 움직임을 발생시키는 파일롯공급포트(Pilot supply Port)를 연결하는 파일롯공급포트연결포트를 포함하여 이루어지는 것을 특징으로 한다.In order to achieve the above object, the test block for the control type hydraulic actuator of the power plant turbine valve according to the present invention, which is mounted on the hydraulic actuator of the power plant turbine valve for measuring the leakage flow rate of the servo valve, as a whole rectangular parallelepiped shape Four corners of the upper and lower surfaces are provided with a through hole corresponding to the through hole of the sub-valve for mounting on the lower end cap of the hydraulic actuator. A pressure port for connecting hydraulic pressure from the pump is connected between the upper and lower surfaces. Pressure port connection port, supply port connection port for connecting the supply port (Port 1) for supplying the hydraulic pressure flowing through the pressure port into the cylinder through the servo valve, to drain (drain) the hydraulic oil to the oil discharge part (FCD) To return the return port to the outside rather than to the drain It characterized in that it comprises a pilot supply port connecting port for connecting the pilot supply port (Pilot supply port) for generating the movement of the servo valve spool through the drain port, the flow path processed inside the lower end cap of the hydraulic actuator.

본 발명에 의한 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭은 공급되는 유압을 컨트롤하는 서브밸브와 유압엑츄에이터의 로어앤드캡 사이에 장착되어 서보밸브의 누설유량을 정확히 측정할 수 있게 하는 한편, 서보밸브의 성능을 진단할 수 있도록 한다.The test block for the control type hydraulic actuator of the power plant turbine valve according to the present invention is mounted between the sub-valve controlling the supplied hydraulic pressure and the lower end cap of the hydraulic actuator to accurately measure the leakage flow rate of the servovalve, and the servo Allows you to diagnose valve performance.

이하, 첨부된 도면을 참조하여 본 발명에 의한 컨트롤타입 유압엑츄에이터용 테스트블럭의 바람직한 실시예를 상세하게 설명한다. Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the test block for a control type hydraulic actuator according to the present invention.

도 4는 본 발명의 일실시예에 따른 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭의 평면투시도이다. 도 4에 도시한 바와 같이, 본 발명의 일실시예에 따른 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭은, 전체적으로 직육면체 형상으로 상면과 하면의 네귀퉁이에는 유압엑츄에이터의 로어앤드캡에 장착되기 위한 서브밸브의 관통공에 대응하는 관통공(h)이 구비되는데, 상기 테스트블럭의 상면과 하면 사이에는 펌프로부터 유압이 유입되는 압력포트(Pressure Port)를 연결하는 압력포트연결포트(110), 상기 압력포트를 통해 유입되는 유압을 서보밸브를 통하여 실린더 내부로 공급하는 공급포트(Port 1)를 연결하는 공급포트연결포트(120), 유압유를 배유부(FCD)로 드레인(배유)시키기 위한 리턴포트(Return Port)를 차단하는 한편 리턴포트를 배유부가 아닌 외부로 배유시키기 위한 드레인포트(130), 유압엑츄에이터의 로어앤드캡 내부에 가공된 유로와 상기 유로를 통하여 서보밸브 스풀의 움직임을 발생시키는 파일롯공급포트(Pilot supply Port)를 연결하는 파일롯공급포트연결포트(140)를 포함하여 이루어지는 것을 특징으로 한다.4 is a plan perspective view of a test block for a control type hydraulic actuator of a power plant turbine valve according to an embodiment of the present invention. As shown in Figure 4, the test block for the control type hydraulic actuator of the power plant turbine valve according to an embodiment of the present invention, a rectangular parallelepiped in the four corners of the upper and lower surfaces for being mounted on the lower end cap of the hydraulic actuator The through hole (h) corresponding to the through hole of the sub-valve is provided, the pressure port connecting port 110 for connecting the pressure port (Pressure Port) through which the hydraulic pressure flows from the pump between the upper and lower surfaces of the test block, Supply port connecting port 120 for connecting the supply port (Port 1) for supplying the hydraulic pressure flowing through the pressure port into the cylinder through the servo valve, Return port for draining (draining) the hydraulic oil to the oil discharge part (FCD) Drain port 130 for blocking the return port and draining the return port to the outside instead of the drainage part, and the flow path processed inside the lower end cap of the hydraulic actuator And a pilot supply port connection port 140 for connecting a pilot supply port for generating a movement of the servo valve spool through the flow path.

또한, 상기 드레인포트(130)의 출구에는 누유량을 측정하기 위한 유량센서를 더 구비한다. In addition, the outlet of the drain port 130 is further provided with a flow rate sensor for measuring the leakage amount.

또한, 유압엑츄에이터의 로어앤드캡(Lower end cap)에 장착되는 쪽 상기 테스트블럭의 각 연결포트 끝단은 스폿페이싱(Spot facing)가공처리를 하여 오링(O-ring)이 장착될 수 있도록 하는 것이 바람직하다.In addition, the end of each connection port of the test block is mounted on the lower end cap of the hydraulic actuator so that the O-ring can be mounted by spot facing processing. Do.

도 5는 본 발명의 일실시예에 따른 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭의 부분절단면도이고, 도 6은 본 발명의 일실시예에 따른 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭의 측면일부투시도이다. 도 5와 도 6에 도시한 바와 같이, 본 발명의 일실시예에 따른 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭은 유압유를 배유부(FCD)로 드레인(배유)시키기 위한 리턴포트(Return Port)를 차단하는 한편 리턴포트를 배유부가 아닌 외부로 배유시키기 위한 드레인포트(130)를 포함하는데, 상기 드레인포트(130)는 서브밸브와 연결되는 서브밸브연결관로(131), 외부로 연결되는 외부관로(133), 상기 서브밸브연결관로(131)와 외부관로(133) 사이에 위치하여 상호 연결시켜 주며 그 일단만이 외부로 뚫린 중간관로(132)를 포함하여 이루어지는 것이 바람직하다. 참고로, 도 5은 도 4에서의 AA'절단선에 의한 절단면도이고, 도 5은 도 4에서의 우측면 일 부투시도이다.5 is a partial cross-sectional view of a test block for a control type hydraulic actuator of a power plant turbine valve according to an embodiment of the present invention, Figure 6 is a test block for a control type hydraulic actuator of a power plant turbine valve according to an embodiment of the present invention. Side part of the perspective view. 5 and 6, the test block for the control type hydraulic actuator of the power plant turbine valve according to an embodiment of the present invention (Return Port for draining (draining) the hydraulic oil to the oil discharge part (FCD)) ) And a drain port 130 for draining the return port to the outside rather than the drainage part, wherein the drain port 130 is connected to the sub-valve connecting pipe 131 and the outside connected to the outside. Pipe line 133, it is preferably located between the sub-valve connecting pipe 131 and the outer pipe 133 to be connected to each other, and only one end thereof comprises an intermediate pipe 132 that is opened to the outside. For reference, FIG. 5 is a cross-sectional view taken along line AA ′ of FIG. 4, and FIG. 5 is a partial perspective view of the right side of FIG. 4.

한편, 상기 외부로 뚫린 드레인포트(130)의 중간관로(132) 일단은 외부와 차단하기 위한 플러그(Plug)마개(P)를 채용하며, 드레인포트(130) 외부관로(133)의 출구(D)는 피티(Pipe Thread)가공을 하는 것이 바람직하다.On the other hand, one end of the intermediate pipe 132 of the drain port 130 that is bored to the outside employs a plug plug (P) to block the outside, the outlet of the drain pipe 130, the external pipe 133 (D) ) Is preferably pipe thread processing.

도 7은 본 발명의 일실시예에 따른 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭의 작동을 설명하기 위한 계통도이다. 도 7에 도시한 바와 같이, 본 발명의 일실시예에 따른 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭은, 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터의 유압유를 배유부(FCD)로 드레인(배유)시키기 위한 리턴포트(Return Port)(130")의 유로를 차단하는 한편 리턴포트를 배유부가 아닌 외부로 배유시키기 위한 드레인포트(130)의 유로로 대체시킴으로써, 드레인포트(130)의 출구(D)로 나오게 되는 서보밸브의 누설유량을 정확히 측정할 수 있게 하는 한편, 서보밸브의 성능을 진단할 수 있도록 한다. 나아가, 본 발명에 따른 컨트롤타입 유압엑츄에이터용 테스트블럭 적용시 배유부에 유량계를 장착하면 유압엑츄에이터의 내부누설(Internal Leakage)도 측정이 가능함은 당업자에게 있어서는 자명한 사항이므로 그에 대한 자세한 설명은 생략한다.7 is a system diagram for explaining the operation of the test block for the control type hydraulic actuator of the power plant turbine valve according to an embodiment of the present invention. As shown in FIG. 7, the test block for the control type hydraulic actuator of the power plant turbine valve according to an embodiment of the present invention includes draining (hydrating) hydraulic oil from the control type hydraulic actuator of the power plant turbine valve to the oil supply unit FCD. The outlet (D) of the drain port 130 by blocking the flow path of the return port 130 "to be replaced with the flow path of the drain port 130 for draining the return port to the outside rather than the drainage part. In addition, it is possible to accurately measure the leakage flow rate of the servo valve, and to diagnose the performance of the servo valve.When the flow meter is installed in the oil distribution part when the test block for the control type hydraulic actuator according to the present invention is applied, Since the internal leakage of the hydraulic actuator can also be measured, it will be obvious to those skilled in the art, so a detailed description thereof will be omitted.

상기한 바와 같은 구성 및 작용은 하나의 실시예로서 본 발명의 청구범위를 제한하는 것은 아니며, 본 발명의 기술적 사상을 변경하지 아니하는 범위 내에서 다양한 변경과 수정이 가능함은 본 발명이 속하는 분야에 종사하는 자에게는 자명한 것이다.The configuration and operation as described above are not limited to the claims of the present invention as an embodiment, and various changes and modifications are possible within the scope of not changing the technical spirit of the present invention. It is obvious to those who are engaged.

도 1은 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터의 유로를 설명하기 위한 계통도1 is a schematic diagram illustrating a flow path of a control type hydraulic actuator of a power plant turbine valve.

도 2는 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터의 로어앤드캡의 포트 참고도2 is a port reference diagram of a lower end cap of a control type hydraulic actuator of a power plant turbine valve

도 3은 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터의 로어앤드캡에 장착되는 서보밸브의 포트 구성도3 is a port configuration diagram of a servo valve mounted to a lower end cap of a control type hydraulic actuator of a power plant turbine valve

도 4는 본 발명의 일실시예에 따른 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭의 평면투시도4 is a plan perspective view of a test block for a control type hydraulic actuator of a power plant turbine valve according to an embodiment of the present invention;

도 5는 본 발명의 일실시예에 따른 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭의 부분절단면도5 is a partial cross-sectional view of a test block for a control type hydraulic actuator of a power plant turbine valve according to an embodiment of the present invention.

도 6은 본 발명의 일실시예에 따른 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭의 측면일부투시도Figure 6 is a partial perspective view of the side of the test block for the control type hydraulic actuator of the power plant turbine valve according to an embodiment of the present invention

도 7은 본 발명의 일실시예에 따른 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭의 작동을 설명하기 위한 계통도Figure 7 is a system diagram for explaining the operation of the test block for the control type hydraulic actuator of the power plant turbine valve according to an embodiment of the present invention.

** 도면의 주요 부분에 대한 부호의 설명 **** Description of symbols for the main parts of the drawing **

100 : 테스트블럭 110 : 압력포트연결포트100: test block 110: pressure port connection port

120 : 공급포트연결포트 130 : 드레인포트120: supply port connection port 130: drain port

140 : 파일롯공급포트연결포트140: pilot supply port connection port

D : 드레인포트 출구 P : 플러그마개D: Drain port outlet P: Plug plug

Claims (5)

발전소 터빈밸브의 컨트롤타입 유압엑츄에이터에 장착되는 테스트블럭에 있어서, In the test block mounted to the control type hydraulic actuator of the power plant turbine valve, 상기 테스트블럭의 상면과 하면 사이에는 펌프로부터 유압이 유입되는 압력포트(Pressure Port)를 연결하는 압력포트연결포트(110), 상기 압력포트를 통해 유입되는 유압을 서보밸브를 통하여 실린더 내부로 공급하는 공급포트(Port 1)를 연결하는 공급포트연결포트(120), 유압유를 배유부(FCD)로 드레인(배유)시키기 위한 리턴포트(Return Port)를 차단하는 한편 리턴포트를 배유부가 아닌 외부로 배유시키기 위한 드레인포트(130), 유압엑츄에이터의 로어앤드캡 내부에 가공된 유로와 상기 유로를 통하여 서보밸브 스풀의 움직임을 발생시키는 파일롯공급포트(Pilot supply Port)를 연결하는 파일롯공급포트연결포트(140)를 포함하여 이루어지는 것을 특징으로 하는 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭Pressure port connection port 110 for connecting the pressure port (Pressure Port) through which the hydraulic pressure flows from the pump between the upper and lower surfaces of the test block, for supplying the hydraulic pressure flowing through the pressure port into the cylinder through the servo valve Supply port connection port 120 connecting the supply port (Port 1), shut off the return port for draining (draining) the hydraulic oil to the oil discharge unit (FCD) while draining the return port to the outside rather than the oil distribution unit Pilot supply port connecting port 140 for connecting the drain port 130, the pilot supply port for generating the movement of the servo valve spool through the flow path processed inside the lower end cap of the hydraulic actuator Test block for the control type hydraulic actuator of the power plant turbine valve, characterized in that comprises a) 제 1항에 있어서,The method of claim 1, 상기 드레인포트(130)의 출구에는 누유량을 측정하기 위한 유량센서를 구비하는 것을 특징으로 하는 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭Test block for the control type hydraulic actuator of the power plant turbine valve, characterized in that the outlet of the drain port 130 is provided with a flow rate sensor for measuring the leakage amount 제 1항에 있어서,The method of claim 1, 유압엑츄에이터의 로어앤드캡(Lower end cap)에 장착되는 쪽 상기 테스트블럭의 각 연결포트 끝단은 스폿페이싱(Spot facing)가공처리를 하는 것을 특징으로 하는 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭Test block for the control type hydraulic actuator of a power plant turbine valve, characterized in that the end of each connection port of the test block is spot facing processing at the lower end cap of the hydraulic actuator. 제 1항에 있어서,The method of claim 1, 상기 드레인포트(130)는 서브밸브와 연결되는 서브밸브연결관로(131), 외부로 연결되는 외부관로(133), 상기 서브밸브연결관로(131)와 외부관로(133) 사이에 위치하여 상호 연결시켜 주며 그 일단만이 외부로 뚫린 중간관로(132)를 포함하며, 상기 외부로 뚫린 중간관로(132)의 일단에는 외부와 차단하기 위한 플러그(Plug)마개(P)를 채용하는 것을 특징으로 하는 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭The drain port 130 is located between the sub-valve connecting pipe 131 connected to the sub-valve, the outer pipe 133 connected to the outside, the sub-valve connecting pipe 131 and the outer pipe 133 are interconnected And one end thereof includes an intermediate pipe passage 132 that is drilled outwardly, and one end of the intermediate pipe passage 132 that is drilled outwardly adopts a plug plug P to block the outside. Test block for control type hydraulic actuator of power plant turbine valve 제 4항에 있어서,The method of claim 4, wherein 상기 드레인포트(130) 외부관로(133)의 출구(D)는 피티(Pipe Thread)가공을 하는 것을 특징으로 하는 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터용 테스트블럭Outlet (D) of the outer pipe 133 of the drain port 130 is a Pit (Pipe Thread) processing characterized in that the test block for the control type hydraulic actuator of the power plant turbine valve
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KR101495197B1 (en) 2013-09-27 2015-02-26 주식회사 에네스지 An apparatus to test a mechanical trip valve of emergency trip system for the turbine of an generator and method to test it
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KR20070089668A (en) * 2007-08-13 2007-08-31 주식회사 신한정공 A shut off valve for high pressured air's leak test

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101184266B1 (en) * 2011-09-16 2012-09-21 주식회사 에네스지 An apparatus to test for an hydraulic actuator of an turbine of an generator and an method to test for it
KR101184268B1 (en) * 2011-09-16 2012-09-21 주식회사 에네스지 An apparatus to test for an hydraulic actuator of an turbine of an generator and an method to test for it
KR101385112B1 (en) * 2013-03-11 2014-04-14 주식회사 에네스지 Test Block for Control Type Hydraulic Actuator
KR101385110B1 (en) * 2013-03-11 2014-04-14 주식회사 에네스지 Test Block for Non-Control Hydraulic Actuator
KR101395931B1 (en) * 2013-06-28 2014-05-16 윤계천 Test block of oil leakage test for turbine valve actuator
KR101495197B1 (en) 2013-09-27 2015-02-26 주식회사 에네스지 An apparatus to test a mechanical trip valve of emergency trip system for the turbine of an generator and method to test it
WO2018124420A1 (en) * 2016-12-29 2018-07-05 윤계천 Monitoring block for real-time integrity evaluation during operation of power plant hydraulic actuator
WO2021215772A1 (en) * 2020-04-22 2021-10-28 Yoon Gye Cheon Module having oil cleaning function for diagnosing integrity of actuator

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