KR100846314B1 - Test Block for Non-Control Hydraulic Actuator - Google Patents

Test Block for Non-Control Hydraulic Actuator Download PDF

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Publication number
KR100846314B1
KR100846314B1 KR1020080030177A KR20080030177A KR100846314B1 KR 100846314 B1 KR100846314 B1 KR 100846314B1 KR 1020080030177 A KR1020080030177 A KR 1020080030177A KR 20080030177 A KR20080030177 A KR 20080030177A KR 100846314 B1 KR100846314 B1 KR 100846314B1
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South Korea
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port
hydraulic actuator
valve
test block
pressure
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KR1020080030177A
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Korean (ko)
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정환욱
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주식회사 에네스코
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    • 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
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/855—Testing of fluid pressure systems
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/857—Monitoring of fluid pressure systems

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

A test block for a non-control type hydraulic actuator is provided to diagnose performance of a servo valve and exactly measure leakage oil of the servo valve by applying the servo valve instead of a solenoid valve. A test block for a non-control type hydraulic actuator 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 is installed between top and bottom surfaces and connects with a pressure port into which hydraulic pressure is introduced from a pump. The supply port connection port connects with a supply port to supply the hydraulic pressure introduced through the pressure port to a cylinder through a servo valve. The drain port blocks a return port to drain hydraulic oil to a drain unit while draining the drain port outside. The pilot supply port connection port is connected to a part of the pressure port connection port and connects with a pilot supply port to generate a movement of a servo valve spool through a passage.

Description

논컨트롤타입 유압엑츄에이터용 테스트블럭{.}Test Block for Non-Control Type Hydraulic Actuator {.}

본 발명은 발전소 터빈밸브의 논컨트롤(Non Control)타입 유압엑츄에이터에 유압을 컨트롤(Control)하는 서브밸브를 장착되고, 상기 서브밸브와 유압엑츄에이터의 로어앤드캡 사이에 장착되어 서보밸브의 누설유량을 측정하기 위한 논컨트롤타입 유압엑츄에이터용 테스트블럭에 관한 것이다.The present invention is equipped with a sub-valve for controlling the hydraulic pressure in the non-control hydraulic actuator of the power plant turbine valve, and is installed between the sub-valve and the lower end cap of the hydraulic actuator to reduce the leakage flow rate of the servovalve A test block for a non-control hydraulic actuator for measuring.

본 발명에 관한 논컨트롤타입 유압엑츄에이터용 테스트블럭은 논컨트롤타입의 발전소 터빈밸브 유압엑츄에이터에 적용되는 것으로서, 공급되는 유압을 단지 개폐시키는 솔레노이트밸브 대신에 논컨트롤타입 유압엑츄에이터에 적용되어 유압을 컨트롤하는 서브밸브와 유압엑츄에이터의 로어앤드캡 사이에 장착되어 서보밸브의 누설유량을 측정하고 서보밸브의 성능을 진단하기 위한 도구이다.The test block for the non-control hydraulic actuator according to the present invention is applied to a non-control power plant turbine valve hydraulic actuator, and is applied to a non-control hydraulic actuator instead of a solenoid valve that opens and closes the supplied hydraulic pressure. It is installed between the controlling sub valve and the lower end cap of the hydraulic actuator to measure the leakage flow rate of the servo valve and to diagnose the performance of the servo valve.

발전소의 터빈출력제어는 터빈에 유입되는 증기량을 터빈증기 밸브가 조정함으로써 이루어지는데, 상기 터빈 밸브의 조정은 유압엑츄에이터가 담당하게 된다. 이와 관련하여, 논컨트롤타입 유압엑츄에이터의 작동은 도 1에 도시한 바와같이, 유압이 유압엑츄에이터의 실린더 하부에 작용을 하여 이루어지는데, 보통 유압엑츄에이터의 개폐조정은 유압엑츄에이터의 로어앤드캡에 장착되는 솔레노이드밸브가 입력신호에 따라 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. In this regard, the operation of the non-control hydraulic actuator is as shown in Figure 1, the hydraulic pressure is acting on the lower part of the cylinder of the hydraulic actuator, normally the opening and closing adjustment of the hydraulic actuator is mounted on the lower end cap of the hydraulic actuator The solenoid valve is made by supplying a flow rate into the cylinder of the hydraulic actuator according to the input signal. 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 논컨트롤타입 유압엑츄에이터의 로어앤드캡의 포트 참고도이고, 도 3은 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터의 로어앤드캡에 장착되는 서보밸브의 포트 구성도이다. 도 2에 도시한 바와같이, 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터의 로어앤드캡의 포트는 펌프로부터 유압이 유입되는 압력포트(Pressure Port)(P), 상기 압력포트를 통해 유입되는 유압을 서보밸브를 통하여 실린더 내부로 공급하는 공급포트(Port 1)(A), 유압유를 배유부(FCD)로 드레인(배유)시키기 위한 리턴포트(Return Port)(T)를 포함하여 이루어져 있고, 도 3에 도시한 바와같이, 발전소 터빈밸브의 컨트롤타입 유압엑츄에이터의 로어앤드캡상에 장착되는 서보밸브의 포트(110', 120', 130')는 상기 유압엑츄에이터의 로어앤드캡의 포트에 대응될 수 있는 구성으로 이루어지며, 추가적으로, 유로를 통하여 서보밸브 스풀의 움직임을 발생시키는 파일롯공급포트(Pilot supply Port)(140')와 로어앤드캡의 포트에 대응되지 않아 사용되지 않는 나머지 포트(Port 2)(150')를 포함하여 이루어져 있다.For reference, FIG. 2 is a reference diagram of a lower end cap of a non-control 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 non-control hydraulic actuator of a power plant turbine valve. to be. As shown in FIG. 2, the lower end cap port of the non-control hydraulic actuator of the power plant turbine valve is a pressure port (P) through which the hydraulic pressure flows from the pump, and the hydraulic pressure flows through the pressure port. It includes a supply port (Port 1) (A) for supplying the inside of the cylinder through the valve, and a return port (T) for draining (draining) the hydraulic oil to the oil discharge part (FCD), As shown, the ports 110 ', 120', 130 'of the servovalve mounted on the lower end cap of the control type hydraulic actuator of the power plant turbine valve may correspond to the port of the lower end cap of the hydraulic actuator. In addition, the pilot supply port (Pilot supply port) (140 ') for generating the movement of the servo valve spool through the flow path and the remaining port (Port 2) (150) not used because it does not correspond to the port of the lower end cap (150) ') Consists of including.

한편, 상기 유압엑츄에이터의 신뢰성 검사를 하기 위해서는 유압엑츄에이터의 내부 누설을 측정하여야 하는데, 발전소 터빈밸브의 논컨트롤타입 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. 더욱이, 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터에서는 개폐조정만 할 수 있는 솔레노이드밸브가 장착되어 유압엑츄에이터의 신뢰성 검사를 하는데 있어서 한계점이 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 non-control type hydraulic actuator of the power plant turbine valve, the hydraulic oil being drained when the hydraulic actuator is stopped, as well as the direction in which the hydraulic actuator is closed. Since the hydraulic oil drained through the servo valve when discharged 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. Moreover, the non-control hydraulic actuator of the power plant turbine valve was equipped with a solenoid valve capable of only opening and closing adjustment, which had limitations in the reliability test of the hydraulic actuator.

따라서 본 발명은 상기와 같은 종래 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터의 문제점을 해결코자 발명된 것으로서, 공급되는 유압을 단지 개폐시키는 솔레노이트밸브 대신에 논컨트롤타입 유압엑츄에이터에 적용되는 서브밸브와 유압엑츄에이터의 로어앤드캡 사이에 장착되어 서보밸브의 누설유량을 측정하는 논컨트롤타입 유압엑츄에이터용 테스트블럭을 제공하는 것을 그 목적으로 한다.Accordingly, the present invention has been invented to solve the problems of the non-control hydraulic actuator of the conventional power plant turbine valve as described above, and instead of the solenoid valve to open and close the supplied hydraulic pressure, the sub-valve applied to the non-control hydraulic actuator and It is an object of the present invention to provide a test block for a non-control hydraulic actuator mounted between the lower end cap of the hydraulic actuator and measuring the leakage flow rate of the servovalve.

상기와 같은 목적을 달성하기 위하여, 본 발명에 따른 발전소 터빈밸브의 논컨트롤(Non Control)타입 유압엑츄에이터용 테스트블럭은, 발전소 터빈밸브의 논컨트롤(Non Control)타입 유압엑츄에이터에 장착되어 서보밸브의 누설유량을 측정하기 위한 것으로서, 전체적으로 직육면체 형상으로 상면과 하면의 네귀퉁이에는 유압엑츄에이터의 로어앤드캡에 장착되기 위한 관통공과 서브밸브를 장착하기 위한 서브밸브의 관통공에 대응하는 나사산구멍이 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, 상기 압력포트연결포트의 일부에 연결되어 가공된 유로를 통하여 서보밸브 스풀의 움직임을 발생시키는 파일롯공급포 트(Pilot supply Port)를 연결하는 파일롯공급포트연결포트를 포함하여 이루어지는 것을 특징으로 한다.In order to achieve the above object, a test block for a non-control hydraulic actuator of a power plant turbine valve according to the present invention is mounted on a non-control hydraulic actuator of a power plant turbine valve to provide a servo valve. It is for measuring the leakage flow rate.The four corners of the upper and lower surfaces are generally rectangular parallelepipeds, and are provided with threaded holes corresponding to the through holes for mounting on the lower end cap of the hydraulic actuator and the through holes of the sub valve for mounting the sub valve. , A pressure port connecting port for connecting a pressure port through which the hydraulic pressure flows from the pump between the upper and lower surfaces, and a supply port for supplying the hydraulic pressure flowing through the pressure port into the cylinder through the servo valve (Port 1). Supply port connecting port, return port for draining (draining) hydraulic oil to oil supply part (FCD) A pilot supply port (Pilot) which blocks the turn port and drains the return port to the outside rather than the drainage part, and generates the movement of the servo valve spool through a processed flow path connected to a part of the pressure port connection port. and a pilot supply port connecting port for connecting the supply port.

본 발명에 의한 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터용 테스트블럭은 공급되는 유압을 단지 개폐시키는 솔레노이트밸브 대신에 공급되는 유압을 컨트롤하는 서브밸브 적용시, 상기 서브밸브와 유압엑츄에이터의 로어앤드캡 사이에 장착되어 서보밸브의 누설유량을 정확히 측정할 수 있게 하는 한편, 서보밸브의 성능을 진단할 수 있도록 한다.The test block for the non-control type hydraulic actuator of the power plant turbine valve according to the present invention is applied to the lower end of the sub-valve and the hydraulic actuator when the sub-valve is applied to control the supplied hydraulic pressure instead of the solenoid valve to open and close the supplied hydraulic pressure. It is installed between the caps to accurately measure the leakage flow rate of the servovalve and to diagnose the performance of the servovalve.

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

도 4는 본 발명의 일실시예에 따른 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터용 테스트블럭의 평면투시도이다. 도 4에 도시한 바와 같이, 본 발명의 일실시예에 따른 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터용 테스트블럭은, 전체적으로 직육면체 형상으로 상면과 하면의 네귀퉁이에는 유압엑츄에이터의 로어앤드캡에 장착되기 위한 관통공(h2)과 서브밸브를 장착하기 위한 서브밸브의 관통공에 대응하는 나사산구멍(h1)이 구비되며, 상면과 하면 사이에는 펌프로부터 유압이 유입되는 압력포트(Pressure Port)를 연결하는 압력포트연결포트(110), 상기 압력포트를 통해 유입되는 유압을 서보밸브를 통하여 실린더 내부로 공급하는 공급포 트(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), 상기 압력포트연결포트(110)의 일부에 연결되어 가공된 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 non-control 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 non-control hydraulic actuator of the power plant turbine valve according to an embodiment of the present invention, the rectangular parallelepiped in the four corners of the upper and lower surfaces to be mounted on the lower end cap of the hydraulic actuator Threaded holes (h1) corresponding to the through-hole (h2) for the through-hole of the sub-valve for mounting the sub-valve is provided, and connects a pressure port for the hydraulic pressure flows from the pump between the upper and lower surfaces Pressure port connection port 110, supply port connection 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, the hydraulic oil oil distribution unit (FCD A drain port 130 for blocking a return port for draining (draining) the drain port and draining the return port to the outside instead of the draining part, and the pressure port connecting port ( It characterized in that it comprises a pilot supply port connecting port 140 for connecting a pilot supply port (Pilot supply port) for generating a movement of the servo valve spool through the flow passage is connected to a part of the 110.

또한, 상기 드레인포트(130)의 출구에는 누유량을 측정하기 위한 유량센서를 구비하는 것이 바람직하다. In addition, the outlet of the drain port 130 is preferably 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 논컨트롤타입 유압엑츄에이터용 테스트블럭의 부분절단면도이고, 도 6은 본 발명의 일실시예에 따른 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터용 테스트블럭의 저면도 및 부분절단면도이다. 도 5와 도 6에 도시한 바와 같이, 본 발명의 일실시예에 따른 발전소 터빈밸브의 논컨트롤타입 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 외부관 로(133), 상기 서브밸브연결관로(131)와 외부관로(133) 사이에 위치하여 상호 연결시켜 주며 그 양단이 외부로 뚫린 중간관로(132)를 포함하여 이루어지는 것이 바람직하다. 참고로, 도 5은 도 4에서의 AA절단선, BB절단선, CC절단선, DD절단선에 의한 절단면도들이고, 도 5은 도 4에 대한 저면도와, EE절단선에 의한 절단면도이다.5 is a partial cross-sectional view of a test block for a non-control hydraulic actuator of a power plant turbine valve according to an embodiment of the present invention, Figure 6 is a non-control hydraulic actuator of a power plant turbine valve according to an embodiment of the present invention Bottom view and partial cutaway view of the test block. 5 and 6, the test block for the non-control hydraulic actuator of the power plant turbine valve according to an embodiment of the present invention is a return port for draining (draining) the hydraulic oil to the oil distribution unit (FCD) And a drain port 130 for circulating the return port to the outside rather than the drainage part, the drain port 130 being connected to the subvalve connecting pipe 131 connected to the subvalve, which is connected to the outside. It is preferred that the outer pipe 133, located between the sub-valve connecting pipe 131 and the outer pipe 133 are connected to each other, and both ends of the outer pipe 133 includes an intermediate pipe 132 that is drilled outward. For reference, FIG. 5 is a cross-sectional view taken by the AA cutting line, the BB cutting line, the CC cutting line, and the DD cutting line in FIG. 4, and FIG. 5 is a bottom view of FIG.

한편, 상기 외부로 뚫린 드레인포트(130)의 중간관로(132) 양단은 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, both ends of the intermediate pipe 132 of the drain port 130 that is bored to the outside adopts 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.

또한, 상기 드레인포트(130)의 중간관로(132)의 일측에는 로어앤드캡의 리턴포트와 연결되는 로어앤드캡연결관로(134)를 더 형성하여, 그의 개폐로 액츄에이터에서 배유되는 유량과 서보밸브에서 배유되는 유량이 만나도록 하는 운전모드와 서보밸브에서 배유되는 유량만을 따로 외부로 배유하는 테스트모드가 가능하도록 하는 것이 바람직하다. 한편, 상기 논컨트롤타입 유압엑츄에이터용 테스트블럭의 로어앤드캡연결관로(134)를 열어 운전모드로 적용시 논컨트롤타입 유압엑츄에이터를 컨트롤타입 유압엑츄에이터로 전용할 수 있음을 알 수 있다.Further, a lower end cap connecting pipe 134 is further formed at one side of the intermediate pipe 132 of the drain port 130 to be connected to the return port of the lower end cap, and the flow rate and the servo valve drained from the actuator by the opening and closing of the drain port 130. It is preferable to enable a test mode in which only the flow rate drained from the servo mode and the operation mode to meet the flow rate is discharged from the outside. Meanwhile, it can be seen that the non-control type hydraulic actuator can be converted into a control type hydraulic actuator when the lower end cap connection pipe 134 of the test block for the non-control type hydraulic actuator is opened and applied in the operation mode.

도 7은 본 발명의 일실시예에 따른 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터용 테스트블럭의 작동을 설명하기 위한 계통도이다. 도 7에 도시한 바와 같이, 본 발명의 일실시예에 따른 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터용 테스트블럭은, 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터의 유압유를 배유부(FCD)로 드레인(배유)시키기 위한 리턴포트(Return Port)(T)의 유로를 차단하 는 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 논컨트롤타입 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 non-control hydraulic actuator of the power plant turbine valve according to an embodiment of the present invention. As illustrated in FIG. 7, the test block for a non-control hydraulic actuator of a power plant turbine valve according to an embodiment of the present invention includes draining hydraulic oil from the non-control hydraulic actuator of the power plant turbine valve to an oil supply part FCD. By blocking the flow path of the return port (T) for draining, and replacing the return port with the flow path of the drain port 130 for draining to the outside rather than the drainage part, the outlet of the drain port 130 ( D) It is possible to accurately measure the leakage flow rate of the servo valve coming out to D) and to diagnose the performance of the servo valve. Further, when the flow meter is installed in the oil distribution part when the test block for the non-control hydraulic actuator according to the present invention is applied, the internal leakage of the hydraulic actuator can also be measured. Therefore, a detailed description thereof is omitted. do.

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 논컨트롤타입 유압엑츄에이터의 유로를 설명하기 위한 계통도1 is a schematic diagram illustrating a flow path of a non-control hydraulic actuator of a power plant turbine valve.

도 2는 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터의 로어앤드캡의 포트 참고도2 is a port reference diagram of a lower end cap of a non-control 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 논컨트롤타입 유압엑츄에이터용 테스트블럭의 평면투시도4 is a plan perspective view of a test block for a non-control hydraulic actuator of a power plant turbine valve according to an embodiment of the present invention;

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

도 6은 본 발명의 일실시예에 따른 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터용 테스트블럭의 저면도 및 부분절단면도6 is a bottom view and a partially cutaway view of a test block for a non-control hydraulic actuator of a power plant turbine valve according to an embodiment of the present invention.

도 7은 본 발명의 일실시예에 따른 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터용 테스트블럭의 작동을 설명하기 위한 계통도7 is a schematic diagram illustrating the operation of a test block for a non-control hydraulic actuator of a 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 (6)

발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터에 장착되는 테스트블럭에 있어서, In the test block mounted on the non-control hydraulic actuator of the power plant turbine valve, 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), 상기 압력포트연결포트(110)의 일부에 연결되어 가공된 유로를 통하여 서보밸브 스풀의 움직임을 발생시키는 파일롯공급포트(Pilot supply Port)를 연결하는 파일롯공급포트연결포트(140)를 포함하여 이루어지는 것을 특징으로 하는 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터용 테스트블럭Pressure port connecting port 110 for connecting the pressure port (Pressure Port) in which the hydraulic pressure flows from the pump between the upper surface and the lower surface, a supply port for supplying the hydraulic pressure flowing through the pressure port into the cylinder through the servo valve (Port) 1) Supply port connecting port 120 to connect the drain port for blocking the return port for draining (draining) the hydraulic oil to the oil supply part (FCD) while drain port for draining the return port to the outside rather than the oil supply part 130, a pilot supply port connecting port 140 is connected to a part of the pressure port connecting port 110 to connect a pilot supply port (Pilot supply port) for generating the movement of the servo valve spool through the processed flow path Test block for non-control hydraulic actuator of power plant turbine valve, characterized in that comprises 제 1항에 있어서,The method of claim 1, 상기 드레인포트(130)의 출구에는 누유량을 측정하기 위한 유량센서를 구비하는 것을 특징으로 하는 발전소 터빈밸브의 논컨트롤타입 유압엑츄에이터용 테스트블럭Test block for the non-control 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 논컨트롤타입 유압엑츄에이터용 테스트블럭Test block for non-control type hydraulic actuator of power plant turbine valve, characterized in that the end of each connection port of the test block is spot facing processing of the side of the test block mounted on 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 양단이 외부로 뚫린 중간관로(132)를 포함하며, 상기 외부로 뚫린 중간관로(132)의 양단에는 외부와 차단하기 위한 플러그(Plug)마개(P)를 채용하는 것을 특징으로 하는 발전소 터빈밸브의 논컨트롤타입 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 an end of the intermediate pipe 132 that is open at both ends thereof, and the plug (P) plug for blocking the outside is adopted at both ends of the outside of the intermediate pipe 132. Test block for non-control hydraulic actuator of 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 논컨트롤타입 유압엑츄에이터용 테스트블럭Outlet (D) of the outer pipe 133 of the drain port 130 is a pipe block for the non-control hydraulic actuator of the power plant turbine valve, characterized in that for processing 제 4항에 있어서,The method of claim 4, wherein 상기 드레인포트(130)의 중간관로(132)의 일측에는 로어앤드캡의 리턴포트와 연결되는 로어앤드캡연결관로(134)를 더 형성하는 것을 특징으로 하는 발전소 터빈 밸브의 논컨트롤타입 유압엑츄에이터용 테스트블럭On one side of the intermediate pipe 132 of the drain port 130 for the non-control hydraulic actuator of the power plant turbine valve, characterized in that further forming a lower end cap connecting pipe 134 connected to the return port of the lower end cap Test block
KR1020080030177A 2008-04-01 2008-04-01 Test Block for Non-Control Hydraulic Actuator KR100846314B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100995306B1 (en) 2010-06-21 2010-11-19 주식회사 에네스코 Test Block and Method of Front Standard Mechanical Trip Valve of Turbine
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
KR20150101694A (en) 2014-02-27 2015-09-04 주식회사 에네스지 Hydraulic actuator for turbine valve of power plant
CN107542727A (en) * 2017-09-06 2018-01-05 国营芜湖机械厂 A kind of guiding valve pair hydraulic detection device and its detection method

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Publication number Priority date Publication date Assignee Title
US4103592A (en) 1975-12-19 1978-08-01 General Electric Company Valve operator
KR200376972Y1 (en) 2004-12-09 2005-03-08 한전기공주식회사 A leakage examination device of the dump valve
KR20050069686A (en) * 2003-12-31 2005-07-05 한국수력원자력 주식회사 System and method for test hydraulic pressure valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103592A (en) 1975-12-19 1978-08-01 General Electric Company Valve operator
KR20050069686A (en) * 2003-12-31 2005-07-05 한국수력원자력 주식회사 System and method for test hydraulic pressure valve
KR200376972Y1 (en) 2004-12-09 2005-03-08 한전기공주식회사 A leakage examination device of the dump valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100995306B1 (en) 2010-06-21 2010-11-19 주식회사 에네스코 Test Block and Method of Front Standard Mechanical Trip Valve of Turbine
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
KR20150101694A (en) 2014-02-27 2015-09-04 주식회사 에네스지 Hydraulic actuator for turbine valve of power plant
CN107542727A (en) * 2017-09-06 2018-01-05 国营芜湖机械厂 A kind of guiding valve pair hydraulic detection device and its detection method
CN107542727B (en) * 2017-09-06 2019-05-10 国营芜湖机械厂 A kind of slide valve pair hydraulic detection device and its detection method

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