KR101662131B1 - Apparatus for testing emergency trip apparatus and method for testing thereof - Google Patents

Apparatus for testing emergency trip apparatus and method for testing thereof Download PDF

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Publication number
KR101662131B1
KR101662131B1 KR1020160015087A KR20160015087A KR101662131B1 KR 101662131 B1 KR101662131 B1 KR 101662131B1 KR 1020160015087 A KR1020160015087 A KR 1020160015087A KR 20160015087 A KR20160015087 A KR 20160015087A KR 101662131 B1 KR101662131 B1 KR 101662131B1
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South Korea
Prior art keywords
port
emergency trip
valve
hydraulic oil
solenoid valve
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Application number
KR1020160015087A
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Korean (ko)
Inventor
양천규
김수철
이승훈
송규조
이세호
이동훈
김원규
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주식회사 에네스지
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Priority to KR1020160015087A priority Critical patent/KR101662131B1/en
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Publication of KR101662131B1 publication Critical patent/KR101662131B1/en

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    • 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
    • F01D21/003—Arrangements for testing or measuring
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • 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
    • F01D21/16—Trip gear
    • F01D21/18—Trip gear involving hydraulic means
    • 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
    • F01K13/00—General layout or general methods of operation of complete plants
    • F01K13/02—Controlling, e.g. stopping or starting
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • 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
    • 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
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/12—Testing on a test bench

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

Abstract

The present invention relates to an apparatus to test an emergency trip device which is able to recognize an operational state of an emergency trip valve (ETV) and an emergency trip solenoid valve (ETSV) before operating a power plant; and a testing method thereof. According to the present invention, the apparatus to test the emergency trip device comprises: a base including a first port to which hydraulic oil is supplied, and a second port and a third port to which the hydraulic oil supplied from the first port is discharged; the emergency trip valve connected to the base, and selectively operated to discharge the hydraulic oil supplied through the first port to any one of the second port and the third port; the emergency trip solenoid valve connected to the base and the emergency trip valve, and selectively operated to discharge the hydraulic oil supplied through the first port to any one of the emergency trip valve and the third port; and a measuring unit which measures a pressure of the hydraulic oil supplied to the emergency trip solenoid valve, and a pressure of the hydraulic oil discharged to the second port in accordance with the selective operation of the emergency trip solenoid valve.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test apparatus for an emergency trip device,

The present invention relates to a test apparatus for an emergency trip apparatus and a test method thereof and, more particularly, to an emergency trip apparatus for testing an emergency trip apparatus for controlling a hydraulic actuator for a power plant in order to cut off steam supplied to a turbine in an emergency situation of the power plant To a test apparatus for a trip device and a test method thereof.

Generally, steam turbines installed in thermal power plants and nuclear power plants are composed of high-pressure turbines and low-pressure turbines. Thermal power plants and nuclear power plants also include turbine governor control system equipment for controlling the steam entering the high pressure turbine and the low pressure turbine and the steam passing through each turbine.

Here, the turbine governor control system facility apparatus is composed of turbine valves for regulating the pressure and flow of the steam, and hydraulic actuators for the power plant for providing the driving force to the turbine valves. Such a hydraulic actuator for a power plant basically includes a cylinder that reciprocates linearly according to the pressure of hydraulic oil supplied and discharged to and from the hydraulic actuator for the power plant, and a cylinder that forms an operating region of the piston and receives and discharges the hydraulic oil. The hydraulic actuator for the power plant further includes a disk dump valve for quickly closing the opening of the steam flowing into the turbine in an operating situation such as an emergency situation of the power plant, for example, when an overspeed operation of the turbine occurs.

The disc dump valve, which is activated in the event of a power plant emergency, is operated by hydraulic oil called an emergency trip supply (ETS). In detail, the power plant is equipped with a system to operate the disk dump valve of the hydraulic actuator for the power plant in the emergency situation of the power plant. This system consists of an emergency trip valve (ETV) and an emergency trip solenoid valve (ETSV) to control the ETS hydraulic fluid supplied to and disconnected from the disc dump valve.

On the other hand, a system having an emergency trip valve and an emergency trip solenoid valve operated in an emergency situation must continuously monitor the operation state to ensure operational reliability in an actual emergency situation.

However, in the conventional system, it is necessary not only to monitor the operation state of the emergency trip valve and the emergency trip solenoid valve according to ETS hydraulic oil continuously while operating the power plant, but also to test the actual emergency trip valve and the emergency trip solenoid valve, There is a problem that it must be performed in the operating state.

Japanese Patent Laid-Open Publication No. 2013-543957; A hydraulic or pneumatic driving device for operating a control device having a control valve or a switching valve

It is an object of the present invention to provide a test apparatus for an emergency trip apparatus capable of grasping an operation state of an emergency trip valve and an emergency trip solenoid before operation of a power plant and a method of testing the same.

It is another object of the present invention to provide an apparatus for testing an emergency trip device and a method of testing the emergency trip device that can test pressure, flow rate, and leakage of hydraulic oil flowing in an emergency trip device before operation of a power plant.

According to a preferred embodiment of the present invention, there is provided a hydraulic control apparatus for a hydraulic pump, comprising: a base having a first port to which hydraulic fluid is supplied according to the present invention, a second port and a third port through which hydraulic fluid supplied from the first port is discharged, An emergency trip valve (ETV) selectively operated to discharge hydraulic fluid supplied through the first port to either the second port or the third port; and an emergency shut-off valve connected to the base and the emergency trip valve, An emergency trip solenoid valve (ETSV) selectively operated to discharge the hydraulic oil supplied through the first port to one of the emergency trip valve and the third port; and an emergency trip solenoid valve Measuring the pressure and measuring the pressure of the hydraulic oil discharged to the second port in accordance with the selective operation of the emergency trip valve And a measurement unit for measuring the temperature of the fluid.

The emergency trip solenoid valve selectively operates according to an electrical signal, and the emergency trip solenoid valve guides the hydraulic fluid to the emergency trip valve when excited according to an electrical signal, Port.

Wherein said emergency trip solenoid valve comprises a first valve for guiding hydraulic oil to said emergency trip valve or guiding said hydraulic oil to said third port when said emergency trip solenoid valve is energized or excited according to an electrical signal, And a second valve operated according to the pressure of the hydraulic oil supplied when the first valve is energized to guide the hydraulic oil to the emergency trip valve.

The emergency trip valve may be actuated in accordance with the pressure of the hydraulic oil guided by the emergency trip solenoid valve to discharge the hydraulic fluid supplied through the first port to the second port.

The measuring unit includes a first pressure measuring unit disposed in a hydraulic line between the first port and the emergency trip solenoid valve for measuring a pressure of the hydraulic fluid supplied to the emergency trip solenoid valve, And a second pressure measuring unit for measuring the pressure of the hydraulic oil discharged to the second port.

The test apparatus of the emergency trip device may further include a displacement measuring unit connected to the emergency trip valve and measuring a displacement of the emergency trip valve moved in accordance with the pressure of the hydraulic oil acting on the emergency trip valve.

The test apparatus of the emergency trip apparatus may further include a test block disposed between the base and the emergency trip valve and forming a communication hole communicating with the first to third ports of the base and supporting the displacement measurement unit have.

According to another aspect of the present invention, there is provided a hydraulic pump comprising: a base having a first port through which hydraulic fluid is supplied, a second port through which hydraulic fluid supplied from the first port is discharged, a third port and a fourth port, An emergency trip valve (ETV) connected to the base and selectively operated to discharge the hydraulic fluid supplied through the first port to either the second port or the third port; and an emergency trip valve An emergency trip solenoid valve (ETSV) connected to the emergency trip solenoid valve and selectively operated to discharge the air to either the emergency trip valve or the third port, and an emergency trip solenoid valve And an emergency trip solenoid valve, which is disposed between the emergency trip valve and the emergency trip solenoid valve and is connected to the hydraulic oil supply A test block for flow rate measurement for guiding the hydraulic fluid supplied from the hydraulic fluid supply to the emergency trip solenoid valve and guiding the hydraulic fluid to any one of the emergency trip valve and the third port in accordance with the selective operation of the emergency trip solenoid valve; And a measuring unit connected to the second port of the base for measuring a flow rate of the hydraulic fluid discharged to the second port.

Here, the emergency trip valve may be operated according to the pressure of the hydraulic oil guided through the test block for measuring the flow rate, and may discharge the hydraulic fluid supplied from the first port to the second port.

Wherein the test block for measuring the flow comprises a first port for measuring the flow rate of the hydraulic oil supplied from the hydraulic oil supply to the emergency trip solenoid valve and a second port for measuring hydraulic oil supplied to the emergency trip valve in accordance with the selective operation of the emergency trip solenoid valve And a third port for measuring flow rate for guiding the hydraulic fluid to the third port in accordance with the selective operation of the emergency trip solenoid valve.

The emergency trip solenoid valve includes a first valve for guiding the hydraulic fluid supplied from the hydraulic fluid supply to the second port for measuring the flow rate or guiding the hydraulic fluid provided from the hydraulic fluid supply port to the third port for measuring the flow rate, And a second valve disposed between the first valve and the flow rate measurement test block and operated according to the pressure of the hydraulic fluid supplied from the hydraulic fluid supply when the first valve is energized to guide the hydraulic fluid to the second port for measuring the flow rate. 2 < / RTI > valve.

According to another aspect of the present invention, there is provided a hydraulic pump comprising: a base having a first port to which hydraulic fluid is supplied and a second port, a third port and a fourth port through which hydraulic fluid supplied from the first port is discharged; An emergency trip solenoid valve (ETSV) connected to the base and selectively operated to guide the hydraulic fluid supplied to the first port to either the third port or the fourth port, and an emergency trip solenoid valve A test block for leak measurement having a first port, a third port and a fourth port for leakage measurement which are disposed between the trip solenoid valves and respectively communicate with the first port, the third port and the fourth port; A shut-off valve (Shut-Off) which is disposed in a leak measuring hydraulic line connecting the third port for measurement and the fourth port for leakage measurement and opens and closes the leak measurement hydraulic line And a measuring unit connected to the third port for measuring the hydraulic fluid discharged to the third port through the third port for leakage measurement .

Here, the measurement unit may measure a leakage amount of the hydraulic oil discharged from the emergency trip solenoid valve to the third port when the shut-off valve closes the leak measurement hydraulic line.

Wherein the measurement unit is configured to measure the pressure of the hydraulic fluid discharged from the third port by bypassing the third port for leakage measurement through the fourth port for leakage measurement when the shut- Flow and pressure can be applied.

The fourth port for leakage measurement may guide the hydraulic oil from the emergency trip solenoid valve to the leakage measurement hydraulic line and cut off the guidance of the hydraulic oil to the fourth port.

On the other hand, the solution to the above-mentioned problem comprises a test apparatus for an emergency trip apparatus having a base having first to third ports according to the present invention, an emergency trip valve, an emergency trip solenoid valve, and a measurement unit, (a) supplying hydraulic fluid to the first port and supplying hydraulic fluid to the emergency trip valve and the emergency trip solenoid valve, (b) measuring pressure of the hydraulic fluid supplied to the emergency trip solenoid valve, and c) guiding the hydraulic oil to one of the emergency trip valve and the third port depending on whether an electrical signal is applied to the emergency trip solenoid valve; and (d) if the emergency trip solenoid valve When the hydraulic oil is supplied to the emergency trip valve, the emergency trip valve operates according to the pressure of the hydraulic oil, Shipment steps and, (e) is made by the test method of the test device of the emergency trip device characterized in that it comprises the step of measuring the pressure of the hydraulic fluid which discharged into the second port.

In the step (c), when an electric signal is applied to the emergency trip solenoid valve to excite the emergency trip solenoid valve, the hydraulic oil supplied from the first port may be guided to the emergency trip valve.

In the step (c), the electric signal applied to the emergency trip solenoid valve is interrupted to guide the hydraulic fluid supplied from the first port to the third port when the emergency trip solenoid valve is disengaged.

The test apparatus of the emergency trip apparatus further includes a displacement measuring section connected to the emergency trip valve. The displacement measuring section measures the displacement of the emergency trip valve, which is moved according to the pressure of the hydraulic oil acting on the emergency trip valve in the step (d) Can be measured.

On the other hand, a test apparatus for an emergency trip apparatus having a base having first to fourth ports, an emergency trip valve, an emergency trip solenoid valve, a hydraulic fluid supply unit, a flow rate test block and a measurement unit, ) Supplying hydraulic fluid to the emergency trip valve from the first port and separately supplying hydraulic fluid to the emergency trip solenoid valve from the hydraulic fluid supply through the test block for measuring flow rate, (b) (B) guiding the hydraulic oil provided from the hydraulic oil supply to either the emergency trip valve or the third port through the flow rate test block according to whether an electrical signal is applied to the valve; and (c) The emergency trip solenoid valve is operated to supply the hydraulic oil supplied from the hydraulic oil supply unit to the emergency Discharging the hydraulic oil supplied from the first port to the second port by operating the emergency trip valve according to the pressure of the hydraulic oil when supplied to the lip valve; (d) And measuring the flow rate of the hydraulic oil discharged to the two ports of the test apparatus.

The test block for measuring the flow rate may include a first port for measuring the flow rate of the hydraulic oil supplied from the hydraulic oil supply to the emergency trip solenoid valve and a second port for measuring the flow rate of the hydraulic oil supplied to the emergency trip valve A second port for measuring the flow rate of the hydraulic fluid and a third port for measuring the flow rate of the hydraulic fluid to the third port according to the selective operation of the emergency trip solenoid valve.

The emergency trip solenoid valve includes a first valve for guiding the hydraulic fluid supplied from the hydraulic fluid supply to the second port for measuring the flow rate or guiding the hydraulic fluid provided from the hydraulic fluid supply port to the third port for measuring the flow rate, And a second valve disposed between the first valve and the flow-rate test block, the second valve being actuated according to the pressure of the hydraulic oil supplied from the hydraulic oil supply when the first valve is energized to guide the hydraulic oil to the second port for measuring the flow rate And may include a second valve.

According to another aspect of the present invention, there is provided a test apparatus for a leak test comprising a base having first to fourth ports, an emergency trip solenoid valve, a test block for measuring leakage, and a shut- (A) supplying hydraulic fluid to the emergency trip solenoid valve from the first port; and (b) supplying hydraulic fluid to the emergency trip solenoid valve (C) moving the hydraulic oil to the third port in the step (b) according to the operation of the emergency trip solenoid valve; Closing the hydraulic line bypassing the hydraulic fluid flowing to the fourth port by operating the shut-off valve to the third port; (d) Up to closing the hydraulic line it is made by the test method of the test device of the emergency trip device characterized in that it comprises the step of measuring the flow rate of the hydraulic fluid leaking to the third port.

(E) measuring the flow rate and pressure of the hydraulic fluid discharged to the third port when the shut-off valve opens the hydraulic line.

The details of other embodiments are included in the detailed description and drawings.

The effects of the test apparatus of the emergency trip apparatus and the test method thereof according to the present invention are as follows.

First, regardless of the operation of the power plant, the pressure of the hydraulic oil supplied from the emergency trip device to the emergency trip solenoid valve and the pressure of the hydraulic oil discharged through the emergency trip valve are measured, thereby operating the emergency trip device together with the operation reliability of the emergency trip solenoid valve Since the reliability can be tested, the time required for the test of the emergency trip device can be reduced.

Second, when measuring the pressure of hydraulic oil supplied to the emergency trip solenoid valve from the emergency trip device and the pressure of the hydraulic oil discharged through the emergency trip valve, the operational reliability of the emergency trip valve can be confirmed by measuring the displacement amount of the emergency trip valve. The operation reliability of the emergency trip device can be ensured.

Thirdly, since the hydraulic oil supplied to the emergency trip device can be measured when the hydraulic oil is discharged to the outside of the emergency trip device, the operational reliability of the emergency trip device can be tested, thereby securing the safety of the operation of the power plant.

Fourth, since the operation reliability of the emergency trip solenoid valve can be confirmed by measuring the leakage hydraulic oil from the emergency trip solenoid valve by using the emergency trip solenoid valve and the shut-off valve, the operation reliability and stability of the emergency trip device can be secured have.

1 is a schematic perspective view of a test apparatus for an emergency trip apparatus according to an embodiment of the present invention,
Fig. 2 is a hydraulic circuit diagram for the base shown in Fig. 1,
3 is a first hydraulic circuit diagram of a test apparatus for an emergency trip apparatus according to a first embodiment of the present invention,
4 is a second hydraulic circuit diagram of a test apparatus for an emergency trip apparatus according to the first embodiment of the present invention,
5 is a flowchart of a test method of a test apparatus for an emergency trip apparatus according to the first embodiment of the present invention,
6 is a hydraulic circuit diagram of a test apparatus for an emergency trip apparatus according to a second embodiment of the present invention,
7 is a flowchart of a test method of a test apparatus for an emergency trip apparatus according to a second embodiment of the present invention,
8 is a first hydraulic circuit diagram of a test apparatus for an emergency trip apparatus according to a third embodiment of the present invention,
9 is a second hydraulic circuit diagram of a test apparatus for an emergency trip apparatus according to a third embodiment of the present invention;
10 is a flowchart of a test method of a test apparatus for an emergency trip apparatus according to a third embodiment of the present invention,
11 is a first hydraulic circuit diagram of a test apparatus for an emergency trip apparatus according to a fourth embodiment of the present invention,
12 is a second hydraulic circuit diagram of a test apparatus for an emergency trip apparatus according to a fourth embodiment of the present invention,
13 is a flowchart of a test method of a test apparatus for an emergency trip apparatus according to a fourth embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a test apparatus and method for testing an emergency trip apparatus according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description, it should be noted that the same names are given to the same names in the test apparatus and test method of the emergency trip apparatus according to the first to fourth embodiments of the present invention.

However, in the method of testing the emergency trip device according to the first to fourth embodiments of the present invention, the same names are denoted by the same reference numerals, but the first and second embodiments are the same It should be noted that the reference numerals, the third and fourth embodiments are described with different reference numerals for the sake of brevity.

It should be noted that Figs. 1 and 2 are applicable to all of the first to fourth embodiments of the present invention.

≪ First and Second Embodiments >

FIG. 1 is a schematic perspective view of a test apparatus for an emergency trip apparatus according to an embodiment of the present invention, FIG. 2 is a hydraulic circuit diagram for the base shown in FIG. 1, and FIG. 3 is an exploded perspective view of the emergency trip apparatus according to the first embodiment of the present invention. Fig. 4 is a second hydraulic circuit diagram of the test apparatus of the emergency trip apparatus according to the first embodiment of the present invention. Fig.

1 to 4, the test apparatus 1 of the emergency trip apparatus according to the first embodiment of the present invention includes a base 100, an emergency trip valve (ETV) 110, An emergency trip solenoid valve (ETSV) 130 and a measurement unit 180. [ The test apparatus 1 of the emergency trip apparatus according to the first embodiment of the present invention further includes a test block 150 and a filter 160.

The base 100 includes a first port P, a second port A, a third port T and a fourth port B to which hydraulic fluid is supplied. The base 100 is also connected to a hydraulic circuit to which the measurement units 180, 340, and 540 of the embodiments of the present invention are connected. Here, other ports of the base 100 and other configurations of the hydraulic circuit in the embodiments of the present invention are omitted in the description of the present invention.

The first port P is connected to an unillustrated hydraulic oil pump and receives hydraulic oil from the outside. The second port (A) and the third port (T) discharge the hydraulic oil supplied from the first port (P).

The emergency trip valve 110 is selectively activated to discharge hydraulic fluid to either the second port A or the third port T via the first port P connected to the base 100. [ The emergency trip valve 110 is stacked on top of the base 100 as an embodiment of the present invention. The emergency trip valve 110 does not voluntarily operate selectively but operates according to the pressure of the hydraulic oil according to the operation of the emergency trip solenoid valve 130 to open the hydraulic oil flow path to the second port A. [ 3, when the pressure is not supplied from the hydraulic oil, the emergency trip valve 110 cuts off the flow path of the second port A, and the emergency trip solenoid valve 130 is opened as shown in FIG. The hydraulic oil is discharged to the second port (A) when the pressure of the hydraulic oil is supplied by the operation of the second port (A).

The emergency trip solenoid valve 130 is connected to the base 100 and the emergency trip valve 110. In detail, in one embodiment of the present invention, the emergency trip solenoid valve 130 is stacked on top of the emergency trip valve 110. The emergency trip solenoid valve 130 is selectively operated to discharge the hydraulic fluid supplied through the first port P to either the emergency trip valve 110 or the third port T. [ The emergency trip solenoid valve 130 is operated according to an electrical signal. In detail, the emergency trip solenoid valve 130, when energized, guides the hydraulic oil to the third port T as shown in Fig. On the other hand, when the emergency trip solenoid valve 130 is energized, the hydraulic oil supplied to the first port P is guided to the emergency trip valve 110 as shown in FIG.

The emergency trip solenoid valve 130 includes a first valve 132 and a second valve 134. The first valve 132 guides the hydraulic fluid to the emergency trip valve 110 or to the third port T when it is energized or energized according to an electrical signal. The second valve 134 is disposed between the emergency trip valve 110 and the first valve 132 and is operated in accordance with the pressure of the hydraulic oil supplied when the first valve 132 is energized to supply the hydraulic oil to the emergency trip valve 110 ).

The test block 150 is then placed between the base 100 and the emergency trip valve 110 and is connected to the first port P, the second port A, the third port T, And forms a communication port communicating with the fourth port (B). That is, the test block 150 includes a first test port P 'for communicating with the first port P, the second port A, the third port T and the fourth port B, A second port A ', a third port T' for testing, and a fourth port B 'for testing. The test block 150 also serves to support the displacement measuring unit 190 (see FIG. 6) in the second embodiment described later.

The filter 160 filters foreign matter and the like contained in the hydraulic oil supplied from the first port P. [

The measurement unit 180 measures the pressure of the hydraulic oil supplied to the emergency trip solenoid valve 130 and measures the pressure of the hydraulic oil discharged to the second port A in accordance with the selective operation of the emergency trip valve 110 . The measuring unit 180 in the embodiment of the present invention is arranged in the hydraulic line between the first port P and the emergency trip solenoid valve 130 to measure the pressure of the hydraulic oil supplied to the emergency trip valve 110 And a second pressure measuring unit 184 connected to the second port A of the base 100 for measuring the pressure of the hydraulic oil discharged to the second port A, . The measurement unit 180 may be constituted by a PT sensor for electrically converting a measurement signal and an analog pressure gauge.

5 is a flowchart of a test method of a test apparatus for an emergency trip apparatus according to the first embodiment of the present invention.

A test method of the test apparatus 1 of the emergency trip apparatus according to the first embodiment of the present invention with respect to such a configuration is as follows.

As shown in Fig. 5, hydraulic oil is supplied from the hydraulic oil pump to the first port P (S1). Then, the hydraulic fluid supplied to the first port P flows into the emergency trip valve 110 and the emergency trip solenoid valve 130 along the hydraulic line. At this time, pressure of the hydraulic oil flowing into the emergency trip solenoid valve 130 is measured (S3).

It is determined whether the emergency trip solenoid valve 130 is energized (S5). If the emergency trip solenoid valve 130 is energized in step S5, the hydraulic oil is supplied to the emergency trip valve 110 to provide the oil pressure to the emergency trip valve 110 (S7). In step S7, the emergency trip valve 110 is operated by the hydraulic oil pressure to open the oil passage to the second port A to discharge the hydraulic oil to the second port A (S9). The measuring unit 180 connected to the second port A measures the pressure of the hydraulic oil discharged to the second port A (S11). On the other hand, if the emergency trip valve 110 is disengaged in step S5, the hydraulic oil is discharged to the third port T (S13).

6 is a hydraulic circuit diagram of the test apparatus of the emergency trip apparatus according to the second embodiment of the present invention.

6, the test apparatus 1 of the emergency trip apparatus according to the second embodiment of the present invention includes a base 100, an emergency trip valve 110, an emergency trip solenoid valve 130, a test block 150, a filter 160, a measurement unit 180, and a displacement measurement unit 190.

The base 100, the emergency trip valve 110, the emergency trip solenoid valve 130, the test block 150, the filter 160 and the measurement unit 180 in the second embodiment of the present invention, Since it has been described in the first embodiment, it is omitted in the second embodiment.

The displacement measuring unit 190 is connected to the emergency trip valve 110 to measure the displacement of the emergency trip valve 110 which is moved according to the pressure of the hydraulic oil acting on the emergency trip valve 110. The displacement measuring unit 190 measures the displacement of the emergency trip valve 110 so as to confirm the operational reliability of the emergency trip valve 110.

7 is a flowchart of a test method of the test apparatus of the emergency trip apparatus according to the second embodiment of the present invention.

As shown in Fig. 7, hydraulic oil is supplied from the hydraulic oil pump to the first port P (S21). Then, the hydraulic fluid supplied to the first port P flows into the emergency trip valve 110 and the emergency trip solenoid valve 130 along the hydraulic line. At this time, the pressure of the hydraulic oil flowing into the emergency trip solenoid valve 130 is measured (S23).

It is determined whether the emergency trip solenoid valve 130 is energized (S25). If the emergency trip solenoid valve 130 is excited in step S25, the hydraulic oil is supplied to the emergency trip valve 110 to provide the oil pressure to the emergency trip valve 110 (S27). In step S27, the emergency trip valve 110 is operated by the pressure of the hydraulic oil to open the oil passage to the second port A to discharge the hydraulic oil to the second port A (S29). In addition, the displacement measuring unit 190 measures the amount of displacement of the emergency trip valve 110 when the oil pressure is supplied to the emergency trip valve 110 in step S27 (S31). The measuring unit 180 connected to the second port A measures the pressure of the hydraulic fluid discharged to the second port A (S33). On the other hand, if the emergency trip valve 110 is disengaged in step S25, the hydraulic oil is discharged to the third port T (S35).

Therefore, regardless of the operation of the power plant, the pressure of the hydraulic oil supplied from the emergency trip device to the emergency trip solenoid valve and the pressure of the hydraulic oil discharged through the emergency trip valve are measured, so that the operation reliability of the emergency trip solenoid valve and the operation of the emergency trip device Since the reliability can be tested, the time required for the test of the emergency trip device can be reduced.

In addition, when measuring the pressure of the hydraulic oil supplied to the emergency trip solenoid valve from the emergency trip device and the pressure of the hydraulic oil discharged through the emergency trip valve, the operation reliability of the emergency trip valve can be confirmed by measuring the displacement amount of the emergency trip valve. The operation reliability of the emergency trip device can be ensured.

≪ Third Embodiment >

FIG. 8 is a first hydraulic circuit diagram of a test apparatus for an emergency trip apparatus according to a third embodiment of the present invention, and FIG. 9 is a second hydraulic circuit diagram of a test apparatus for an emergency trip apparatus according to the third embodiment of the present invention.

8 and 9, the test apparatus 1 of the emergency trip apparatus according to the third embodiment of the present invention includes a base 100, an emergency trip valve 110, an emergency trip solenoid valve 130, A test block 150, a test block 300 for measuring flow rate, a hydraulic oil supply unit 320, and a measurement unit 340. Since the base 100, the emergency trip valve 110, the emergency trip solenoid valve 130 and the test block 150 in the third embodiment of the present invention have been described in the first and second embodiments, they will be omitted in the following description.

A test block 300 for flow measurement is disposed between the emergency trip valve 110 and the emergency trip solenoid valve 130. The flow rate measuring test block 300 is connected to the hydraulic oil supply unit 320 to guide the hydraulic oil supplied from the hydraulic oil supply unit 320 to the emergency trip solenoid valve 130 and to selectively operate the emergency trip solenoid valve 130 To the emergency trip valve (110) and the third port (T). The hydraulic fluid supplied to and discharged from the test block 300 for the flow measurement is used as the hydraulic fluid supplied from the hydraulic fluid supplier 320 different from the hydraulic fluid supplied from the first port P. [

In one embodiment of the present invention, the test block 300 for flow measurement includes a first port (p) for flow measurement, a second port (b) for flow measurement, and a third port (t) for flow measurement.

The first port (p) for measuring the flow rate is connected to the hydraulic oil supply unit 320 and guides the hydraulic oil provided from the hydraulic oil supply unit 320 to the emergency trip solenoid valve 130. The second port (b) for flow measurement guides the hydraulic oil flowing along the excitation of the emergency trip solenoid valve (130) to the emergency trip valve (110). The second port (b) for flow measurement guides the hydraulic fluid to the third port (T) in accordance with the element of the emergency trip solenoid valve (130).

The measuring unit 340 measures the flow rate of the hydraulic fluid that is connected to the second port A of the base 100 and discharged to the second port A. [ Specifically, the measuring unit 340 measures the flow rate of the hydraulic oil supplied to the first port P and discharged to the second port A. [

The emergency trip solenoid valve 130 is provided with the hydraulic oil supplied to the first port P separately from the hydraulic oil supplied to the first port P so that the emergency trip solenoid valve 130 is supplied with the constant hydraulic oil Pressure can be provided. Therefore, the flow rate of the hydraulic oil supplied to the first port P and discharged to the second port A due to the possibility of opening the flow path to the second port A by providing a constant pressure to the emergency trip valve 110 Can be accurately measured.

A test method of the test apparatus 1 of the emergency trip apparatus according to the third embodiment of the present invention with such a configuration is as follows.

10 is a flowchart of a test method of a test apparatus for an emergency trip apparatus according to the third embodiment of the present invention.

As shown in Fig. 10, hydraulic oil is separately supplied to the first port P of the base 100 and the first port p of the flow rate measurement (S51). It is determined whether the emergency trip solenoid valve 130 is excited when the hydraulic oil is supplied from the first port p for measuring the flow rate to the emergency trip solenoid valve 130 at step S53. When the emergency trip solenoid valve 130 is excited in step S53, hydraulic oil is supplied to the emergency trip valve 110 through the second port b for measuring the flow rate (S55). If the hydraulic oil pressure is supplied to the emergency trip valve 110 in step S55, the hydraulic oil supplied from the first port P is opened to the second port A so that the hydraulic oil supplied from the first port P can be discharged to the second port A, And the hydraulic oil is discharged to the two port (A) (S57). At this time, the flow rate of the hydraulic fluid discharged to the second port A is measured (S59). If it is determined in step S53 that the emergency trip solenoid valve 130 is an element, the hydraulic oil supplied from the hydraulic oil supply unit 320 to the third port T of the base 100 through the third port t for measuring the flow rate (S61).

Accordingly, since the flow rate of the hydraulic oil supplied to the emergency trip device when discharged to the outside of the emergency trip device can be measured, the operational reliability of the emergency trip device can be tested, thereby securing the safety of the operation of the power plant.

<Fourth Embodiment>

FIG. 11 is a first hydraulic circuit diagram of a test apparatus for an emergency trip apparatus according to a fourth embodiment of the present invention, and FIG. 12 is a second hydraulic circuit diagram of a test apparatus for an emergency trip apparatus according to the fourth embodiment of the present invention.

The test apparatus 1 of the emergency trip apparatus according to the fourth embodiment of the present invention includes a base 100, an emergency trip solenoid valve 130, a test block 150, a test block 500 for measuring leakage, A valve 520 and a measurement unit 540. Here, the base 100, the emergency trip solenoid valve 130, and the test block 150 in the fourth embodiment of the present invention are the same as those of the first to third embodiments of the present invention, and will not be described below.

The leakage test test block 500 is disposed between the base 100 and the emergency trip solenoid valve 130 and includes a first port P, a third port T and a fourth port B of the base 100, (P ') for leakage measurement, a third port (t') for leakage measurement, and a fourth port (b ') for leakage measurement, respectively. The leakage measurement test block 500 also includes a leakage measurement hydraulic line L for interconnecting the third port t 'for leakage measurement and the fourth port b' for leakage measurement.

The shut-off valve 520 is disposed in the oil pressure line L for leakage measurement to open and close the oil pressure line L for leakage measurement. Specifically, when the emergency trip solenoid valve 130 is excited, the shut-off valve 520 opens and closes the hydraulic line L for leak measurement. It is possible to measure whether the hydraulic oil leaks through the third port t 'for leakage measurement when the shut-off valve 520 closes the hydraulic line L for leak measurement, and the shut-off valve 520 When opening the hydraulic line (L) for leak measurement, the maximum flow rate can be measured.

The measuring unit 540 includes a first measuring unit 542 (see FIG. 2) connected to the third port T for measuring hydraulic fluid leaking through the third port t 'for leakage measurement, And a second measuring unit 544 (see FIG. 2) connected to the third port t 'for measuring the maximum flow rate of the hydraulic fluid discharged through the third port t' for leakage measurement.

13 is a flowchart of a test method of a test apparatus for an emergency trip apparatus according to a fourth embodiment of the present invention.

With this configuration, the test method of the test apparatus 1 of the emergency trip apparatus according to the fourth embodiment of the present invention is as follows.

Hydraulic oil is supplied to the first port P (S71). It is determined whether the emergency trip solenoid valve 130 is energized (S73). If it is determined in step S73 that the emergency trip solenoid valve 130 is energized, the hydraulic fluid is flowed to the fourth port b 'for leakage measurement (S75). At this time, the hydraulic fluid flowing to the fourth port (b ') for leakage measurement is bypassed and flows to the third port (t') for leakage measurement along the oil pressure line (L) for leakage measurement. On the other hand, if it is determined in step S73 that the emergency trip solenoid valve 130 is disengaged, the hydraulic oil is discharged to the third port T (S77).

It is determined whether the shut-off valve 520 is in the ON state (S79). That is, if it is determined in step S79 that the leak measurement hydraulic line L in which the shut-off valve 520 is in an ON state is closed, the third port t 'for leakage measurement from the emergency trip solenoid valve 130 (S81). &Lt; / RTI &gt; On the other hand, if it is determined in step S79 that the hydraulic measurement line L for leakage measurement in which the shut-off valve 520 is in the OFF state is opened, the third port (t ' The maximum flow rate of the hydraulic oil discharged to the port T is measured (S83).

By using the emergency trip solenoid valve and the shut-off valve, it is possible to confirm the operation reliability of the emergency trip solenoid valve by measuring the leakage hydraulic oil from the emergency trip solenoid valve, thereby ensuring the operational reliability and stability of the emergency trip device. have.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, . Therefore, it should be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Base 110: Emergency trip valve
130: Emergency trip solenoid valve 132: First valve
134: second valve 150: test block
180, 340, 540: measuring unit
190: Displacement measuring part 300: Test block for measuring flow rate
320: Hydraulic oil dispenser 500: Test block for measuring leakage
520: shut-off valve

Claims (24)

A base having a first port to which hydraulic fluid is supplied and a second port and a third port through which hydraulic fluid supplied from the first port is discharged;
An emergency trip valve (ETV) connected to the base and selectively operated to discharge hydraulic fluid supplied through the first port to either the second port or the third port;
An emergency trip solenoid valve (ETSV) connected to the base and the emergency trip valve, the emergency trip solenoid valve being selectively operated to discharge the hydraulic oil supplied through the first port to either the emergency trip valve or the third port; )Wow;
And a measuring unit for measuring a pressure of the hydraulic fluid supplied to the emergency trip solenoid valve and measuring a pressure of the hydraulic fluid discharged to the second port in accordance with selective operation of the emergency trip valve, Of the test apparatus.
The method according to claim 1,
The emergency trip solenoid valve is selectively operated according to an electrical signal,
Wherein the emergency trip solenoid valve guides the hydraulic fluid to the emergency trip valve when excited according to an electrical signal and guides the hydraulic fluid to the third port when the emergency trip valve is energized.
3. The method of claim 2,
Wherein the emergency trip solenoid valve comprises:
A first valve for guiding the hydraulic oil to the emergency trip valve or guiding the hydraulic oil to the third port when the valve is energized or excited according to an electrical signal;
And a second valve disposed between the emergency trip valve and the first valve and operated according to the pressure of the hydraulic oil supplied when the first valve is energized to guide the hydraulic oil to the emergency trip valve Test device for an emergency trip device.
3. The method of claim 2,
Wherein the emergency trip valve is actuated in accordance with the pressure of hydraulic oil guided by the emergency trip solenoid valve to discharge the hydraulic fluid supplied through the first port to the second port, .
The method according to claim 2 or 4,
Wherein the measuring unit comprises:
A first pressure measuring unit disposed in a hydraulic line between the first port and the emergency trip solenoid valve for measuring a pressure of the hydraulic oil supplied to the emergency trip solenoid valve;
And a second pressure measuring unit connected to the second port of the base for measuring the pressure of the hydraulic oil discharged to the second port.
5. The method of claim 4,
The test apparatus of the emergency trip apparatus includes:
Further comprising a displacement measuring unit connected to the emergency trip valve and measuring a displacement of the emergency trip valve moved in accordance with the pressure of the hydraulic oil acting on the emergency trip valve.
The method according to claim 6,
The test apparatus of the emergency trip apparatus includes:
Further comprising a test block disposed between the base and the emergency trip valve and forming a communication hole communicating with the first to third ports of the base and supporting the displacement measurement unit. Test device.
A base having a first port through which hydraulic fluid is supplied and a second port through which the hydraulic oil supplied from the first port is discharged, a third port and a fourth port;
An emergency trip valve (ETV) connected to the base and selectively operated to discharge hydraulic fluid supplied through the first port to either the second port or the third port;
An emergency trip solenoid valve (ETSV) connected to the base and the emergency trip valve, the emergency trip solenoid valve (ETSV) selectively operated to discharge to either the emergency trip valve or the third port;
A hydraulic oil supplier for individually providing hydraulic pressure oil of a predetermined pressure to the emergency trip solenoid valve;
And an emergency trip solenoid valve connected between the emergency trip valve and the emergency trip solenoid valve and connected to the hydraulic oil supply for guiding the hydraulic oil supplied from the hydraulic oil supply to the emergency trip solenoid valve, A flow rate measuring test block for guiding to either the emergency trip valve or the third port;
And a measuring unit connected to the second port of the base for measuring a flow rate of the hydraulic fluid discharged to the second port.
9. The method of claim 8,
Wherein the emergency trip valve is operated in accordance with the pressure of the hydraulic oil guided through the test block for measuring flow rate, and discharges the hydraulic fluid supplied from the first port to the second port.
10. The method according to claim 8 or 9,
The flow rate measuring test block includes:
A first port for measuring a flow rate of the hydraulic oil supplied from the hydraulic oil supply to the emergency trip solenoid valve;
A second port for flow rate measurement for guiding hydraulic fluid to the emergency trip valve in accordance with the selective operation of the emergency trip solenoid valve;
And a third port for measuring the flow rate of hydraulic fluid to the third port according to selective operation of the emergency trip solenoid valve.
11. The method of claim 10,
Wherein the emergency trip solenoid valve comprises:
A first valve for guiding the hydraulic fluid provided from the hydraulic fluid supply to the second port for measuring the flow rate or guiding the hydraulic fluid provided from the hydraulic fluid supply port to the third port for measuring the flow rate when excited or activated according to an electrical signal;
And a second valve disposed between the first valve and the flow-rate test block, the second valve being actuated according to the pressure of the hydraulic oil supplied from the hydraulic oil supply when the first valve is energized to guide the hydraulic oil to the second port for measuring the flow rate And a second valve. &Lt; Desc / Clms Page number 24 &gt;
A base having a first port through which hydraulic fluid is supplied and a second port through which the hydraulic oil supplied from the first port is discharged, a third port and a fourth port;
An emergency trip solenoid valve (ETSV) connected to the base and selectively operated to guide the hydraulic fluid supplied to the first port to either the third port or the fourth port;
A first port for leakage measurement, a third port and a fourth port, which are disposed between the base and the emergency trip solenoid valve and communicate with the first port, the third port and the fourth port, respectively, A test block;
A shut-off valve (Shut-OFF Valve) disposed in a leak measuring hydraulic line connecting the leak measuring third port and the leak measuring fourth port and opening / closing the leak measuring hydraulic line;
And a measuring unit connected to the third port for measuring hydraulic fluid discharged to the third port through the third port for measuring leakage.
13. The method of claim 12,
Wherein the measuring unit measures the leakage amount of the hydraulic oil discharged from the emergency trip solenoid valve to the third port when the shut-off valve closes the leak measurement hydraulic line. .
13. The method of claim 12,
Wherein the measurement unit is configured to measure the pressure of the hydraulic fluid discharged from the third port by bypassing the third port for leakage measurement through the fourth port for leakage measurement when the shut- Wherein the flow rate and the pressure are measured.
15. The method according to any one of claims 12 to 14,
And the fourth port for leakage measurement guides the hydraulic oil from the emergency trip solenoid valve to the leak measurement hydraulic line and blocks the guide of the hydraulic oil to the fourth port.
A test apparatus for an emergency trip apparatus having a base having first to third ports, an emergency trip valve, an emergency trip solenoid valve, and a measurement unit,
(a) supplying hydraulic fluid to the first port and supplying hydraulic fluid to the emergency trip valve and the emergency trip solenoid valve;
(b) measuring the pressure of the hydraulic fluid supplied to the emergency trip solenoid valve;
(c) guiding the hydraulic oil to one of the emergency trip valve and the third port depending on whether an electric signal is applied to the emergency trip solenoid valve;
(d) when the emergency trip solenoid valve is operated and the hydraulic oil is supplied to the emergency trip valve in the step (c), the emergency trip valve operates according to the pressure of the hydraulic oil to discharge the hydraulic oil to the second port Wow;
(e) measuring the pressure of the hydraulic fluid discharged to the second port.
17. The method of claim 16,
The step (c)
Wherein when the emergency trip solenoid valve is energized by applying an electrical signal to the emergency trip solenoid valve, the hydraulic oil supplied from the first port is guided to the emergency trip valve Way.
18. The method of claim 17,
The step (c)
Wherein when the emergency trip solenoid valve is disconnected, an electric signal applied to the emergency trip solenoid valve is interrupted to guide the hydraulic fluid supplied from the first port to the third port. Test method.
18. The method of claim 17,
The test apparatus of the emergency trip apparatus further includes a displacement measuring section connected to the emergency trip valve,
Wherein the displacement measuring unit measures the displacement of the emergency trip valve moved in accordance with the pressure of the hydraulic oil acting on the emergency trip valve in the step (d).
And a test apparatus for an emergency trip apparatus having a measurement unit, the test apparatus comprising: a base having first to fourth ports; an emergency trip valve; an emergency trip solenoid valve; a hydraulic fluid supply unit;
(a) supplying hydraulic fluid to the emergency trip valve from the first port and separately supplying hydraulic fluid to the emergency trip solenoid valve from the hydraulic fluid supply through the test block for measuring flow rate;
(b) guiding the hydraulic oil provided from the hydraulic oil supply to any one of the emergency trip valve and the third port through the flow rate test block according to whether an electric signal is applied to the emergency trip solenoid valve;
(c) when the emergency trip solenoid valve is operated and the hydraulic oil supplied from the hydraulic oil supply is supplied to the emergency trip valve in the step (b), the emergency trip valve operates according to the pressure of the hydraulic oil, Discharging the hydraulic oil supplied from the port to the second port;
(d) measuring a flow rate of the hydraulic fluid discharged from the second port to the second port.
21. The method of claim 20,
The flow rate measuring test block includes:
A first port for measuring a flow rate of the hydraulic oil supplied from the hydraulic oil supply to the emergency trip solenoid valve;
A second port for flow rate measurement for guiding hydraulic fluid to the emergency trip valve in accordance with the selective operation of the emergency trip solenoid valve;
And a third port for measuring the flow rate of hydraulic fluid to the third port according to selective operation of the emergency trip solenoid valve.
22. The method of claim 21,
Wherein the emergency trip solenoid valve comprises:
A first valve for guiding the hydraulic fluid provided from the hydraulic fluid supply to the second port for measuring the flow rate or guiding the hydraulic fluid provided from the hydraulic fluid supply port to the third port for measuring the flow rate when excited or activated according to an electrical signal;
And a second valve disposed between the first valve and the flow-rate test block, the second valve being actuated according to the pressure of the hydraulic oil supplied from the hydraulic oil supply when the first valve is energized to guide the hydraulic oil to the second port for measuring the flow rate And a second valve. The method of testing a test apparatus of an emergency trip apparatus according to claim 1,
A test apparatus for an emergency trip apparatus having a measurement base, a base having first to fourth ports, an emergency trip solenoid valve, a leak test block, a shut-off valve disposed in the leakage test block, &Lt; / RTI &
(a) supplying hydraulic fluid from the first port to the emergency trip solenoid valve;
(b) guiding the hydraulic fluid to either the third port or the fourth port depending on whether an electrical signal is applied to the emergency trip solenoid valve;
(c) when the hydraulic oil flows to the third port in the step (b) according to the operation of the emergency trip solenoid valve, the shut-off valve is operated to supply hydraulic oil, which flows to the fourth port, Closing the hydraulic line bypassing the hydraulic line;
(d) measuring a flow rate of the hydraulic fluid leaking to the third port when closing the hydraulic line in the step (c).
24. The method of claim 23,
(e) measuring the flow rate and pressure of the hydraulic fluid discharged to the third port when the shut-off valve opens the hydraulic line. .
KR1020160015087A 2016-02-05 2016-02-05 Apparatus for testing emergency trip apparatus and method for testing thereof KR101662131B1 (en)

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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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JP2013543957A (en) 2010-11-08 2013-12-09 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Hydraulic or pneumatic drive that operates control equipment with control valve or switching valve
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