CN116839891A

CN116839891A - Automatic test method for valve of gas turbine

Info

Publication number: CN116839891A
Application number: CN202310851188.XA
Authority: CN
Inventors: 朱俊
Original assignee: Wangting Power Generation Branch Of Shanghai Huadian Power Development Co ltd
Current assignee: Wangting Power Generation Branch Of Shanghai Huadian Power Development Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2023-10-03

Abstract

The invention discloses an automatic test method for a valve of a gas turbine, which is characterized in that a special picture for valve activity test is newly added on an original unit monitoring picture, and an operation interface for each valve activity test is arranged on the special picture; the special picture for the valve activity test comprises: two-position purge valves VA13-1, VA13-5 and VA13-6, a fuel stop valve VS4-1, a fuel exhaust valve VG-1, an adjustable purge valve VA13-2, a speed ratio valve SRV, a fuel valve D5, PM1 and PM4, and a compressor inlet rotatable guide vane IGV, a steam turbine high-speed CV, a steam turbine low-speed ACV, a medium-speed IV1 and an air turbine IV2; the hydraulic oil pump system further comprises a set brake hanging button, a brake hanging state indicating block, a hydraulic oil pump running state and hydraulic oil system pressure indicating block and a fuel machine side valve and a turbine side valve test total cutting button; and the MK-VI control logic is not opened, and the mouse is directly clicked on the picture to complete the activity test of all valves.

Description

Automatic test method for valve of gas turbine

Technical Field

The invention relates to a gas turbine, in particular to an automatic test method for a valve of the gas turbine.

Background

A plurality of hydraulic and pneumatic valves, such as a fuel stop valve, a fuel speed ratio valve, a fuel control valve, a fuel purge valve, a fuel exhaust valve and the like, are arranged in the fuel of the 9F type gas turbine and the purging system thereof. The fuel stop valve, the speed ratio valve and the control valve play roles of fuel on-off, fuel pressure control and fuel distribution, and the fuel purge valve and the emptying valve play roles of fuel pipeline and fuel nozzle purging, fuel nozzle cooling, combustion pulsation maintenance and residual fuel emptying in the fuel pipe. These valves play a critical role in the overall fuel system and whether the normal switching is directly related to safe and stable operation of the gas turbine. The gas turbine is used as a peak shaver set in China, the start and stop are frequent, and once the set is stopped for a period of time and then started, the valves can be subjected to valve opening and closing faults due to the fact that mechanical parts are not blocked due to expansion caused by heat, contraction caused by cold and the like. Therefore, the valve is normally stopped for more than three days to perform the full-travel switch activity test, so that no problem occurs in the starting process of the unit. The valves cannot be directly switched on or off on an HMI monitoring picture, and when a valve activity test is to be carried out, the GE MK-VI control logic can be opened to carry out forced operation, so that the valves are very tedious and inconvenient, and a plurality of safety risks exist, and the main problems are as follows:

1. the valve is numerous, and the test consumes a great deal of manpower resources

Important valves for a single gas turbine that require activity testing include: the number of the hydraulic valves of the gas turbine and the steam turbine is 9, the number of the pneumatic valves of the gas turbine is 6, 15 valves are all arranged, and the number of the gas turbine and the steam turbine is increased by a multiple of 2 according to the monitoring calculation of one person of a single unit, so that the manpower resource is quite consumed.

2. The operation steps are complex, and the test consumes a great deal of time

Because the control logic of the valves is arranged in the GE MK-VI control program, the operation can not be directly performed on a monitored picture, the operation can only be performed by opening the control logic to force a method of adding a point number with a curve wave record, so that the calculation of 4 points of each valve is performed on average, a single unit has 60 points, the operations of logic calling, point signal forcing and releasing, picture signal checking and the like are performed, the clicking frequency of a mouse is more than five hundred times, and the time for manufacturing and storing a wave record curve and checking and recording the action time of the valve is required to be at least 2 hours at one time.

3. Safety risks exist during test operation

A plurality of gas turbines in the GE MK-VI system are arranged in the same network section so as to be convenient for cross control, when a hydraulic valve is tested, forced brake hanging operation is required to be carried out on a shutdown unit, and if the shutdown unit is forced by careless running of a wrong position, the shutdown unit can be directly caused to be in non-shutdown. When the hydraulic and pneumatic valves are tested, a large amount of switching value and analog quantity signals are forced, and if the forced error occurs or the forced signals are forgotten to release, unsafe accidents of tripping in the process of prohibiting starting or running of the unit can be caused.

4. The difficulty in the test operation process is high, and a new employee is not easy to get on hand

The whole valve activity test process is carried out in the GE MK-VI control program, the MK-VI control program is not very visual to operate, roll call or wiring terminal position query is needed to be remembered for measuring point signals, logic navigation and signal forced operation are carried out, and steps such as wave recording curve production, monitoring window call and the like are all needed to be mastered step by training and learning for a period of time, so that the new staff is required to be immediately and skillfully mastered with great difficulty.

Disclosure of Invention

The invention aims at: the automatic test method for the valve of the gas turbine is provided, and the functions of all valve activity tests can be completed by directly clicking a mouse on a monitoring picture without opening a GE MK-VI control program to perform forced signal operation. Therefore, the manpower resources can be effectively saved, the test time is shortened, the test operation process is simplified and is easy to operate, and the unsafe problem of non-stop accidents of the unit caused by forced errors or forced signal omission is fundamentally solved.

The technical scheme of the invention is as follows:

an automatic test method for a gas turbine valve, the test valve comprising: a fuel shut-off valve, a fuel ratio valve, a fuel control valve, a fuel purge valve, the method comprising:

a special picture for valve activity test is newly added on the original unit monitoring picture, and an operation interface of each valve activity test is arranged on the special picture;

the special picture for the valve activity test comprises: two-position purge valves VA13-1, VA13-5 and VA13-6, a fuel stop valve VS4-1, a fuel exhaust valve VG-1, an adjustable purge valve VA13-2, a speed ratio valve SRV, a fuel valve D5, PM1 and PM4, and a compressor inlet rotatable guide vane IGV, a steam turbine high-speed CV, a steam turbine low-speed ACV, a medium-speed IV1 and an air turbine IV2; the hydraulic oil pump system further comprises a set brake hanging button, a brake hanging state indicating block, a hydraulic oil pump running state and hydraulic oil system pressure indicating block and a fuel machine side valve and a turbine side valve test total cutting button;

and the MK-VI control logic is not opened, and the mouse is directly clicked on the picture to complete the activity test of all valves.

Preferably, the operation interfaces of the five two-position pneumatic valves of the purge valves VA13-1, VA13-5 and VA13-6, the fuel stop valve VS4-1 and the fuel exhaust valve VG-1 are the same, four buttons of test input ON, test cut OFF, valve opening OPEN and valve closing CLOSE are arranged below each valve, and four indication blocks for successful opening, successful closing, opening faults and closing faults are arranged ON the right side of the valve;

when the valve activity test is to be carried out, clicking a test input ON button below the corresponding valve, and displaying orange color after the input is successful; clicking an OPEN button to OPEN a valve, displaying orange on an OPEN SUCC indication block on the right side after the valve is successfully opened, changing the color of the valve into red, and displaying a red OPEN character on the top; then click CLOSE button to CLOSE the valve, CLOSE the right side CLOSE SUCC instruction piece after the valve is CLOSED successfully shows orange, and the valve colour becomes green, and the top shows green CLOSED word appearance. If the FAULT is turned on, the OPEN FAULT indication block on the right displays orange; if the FAULT is closed, the CLOSE FAULT indication block on the right displays orange; after the valve test is finished, the test cutting OFF button is clicked to withdraw from the valve test, the orange ON the test input ON button disappears, and the valve is restored to the normal working mode.

Preferably, three buttons of test ON, test OFF and valve opening command CMD are arranged below the valve of the adjustable purge valve VA13-2, and status indication blocks of four stroke switches of l33pg2c, l33pg2_1, l33pg2_3 and l33pg2o are arranged ON the right side of the valve;

when the valve activity test is to be carried out, clicking an ON button for the test under the valve, displaying orange color by the button after the input is successful, clicking a valve opening command CMD button, popping up a window to input the opening command of the valve, inputting a corresponding command to carry out the full-stroke activity test ON the valve, changing the color of a state indicating block of the four-side stroke switch ON the right side in the switching process when the valve is at the corresponding opening position, and changing the color of a valve body and a state bar above the valve body; after the test is finished, clicking the test cutting OFF OFF button to withdraw from the valve test, and turning orange ON the ON button to restore the normal working mode.

Preferably, the fuel speed ratio valve SRV, the fuel control valves D5, PM1, PM4, the compressor inlet rotatable guide vane IGV, the 9 adjustment type hydraulic valve operation interfaces of the steam turbine high-adjustment CV, low-adjustment ACV, medium-adjustment IV1, IV2 are the same, the valve position indication is arranged below each valve, and three buttons of test input ON, test cut OFF and valve opening command CMD are arranged ON the right side of the valve;

when the valve activity test is to be carried out, clicking an ON button for test input ON the right side of a corresponding valve, displaying orange color by the button after the input is successful, clicking a valve opening command CMD button, popping up a window to input the opening command of the valve, inputting a corresponding command to carry out the full-stroke activity test ON the valve, and checking a valve position signal below the valve to determine whether the command of the valve is consistent with valve position feedback in the test process; after the test is finished, clicking the test cutting OFF OFF button to withdraw from the valve test, and turning orange ON the ON button to restore the normal working mode.

Preferably, 15 special control logics for valve activity tests and manual brake-hanging control logics of a unit are added in an MK-VI control program, corresponding logic points are added, and data links are made with corresponding buttons and state indication blocks on an image operation end, so that the functions of all valve activity tests can be completed by directly operating on an image.

The invention has the advantages that:

1. the invention directly operates on the picture through the automatic valve test program, and can complete the activity test work of all valves of a plurality of units by only one person, thereby effectively saving precious human resources, saving 2n-1 (n is the number of units) times compared with the original operation of one unit by two persons, and the more the number of units is, the more obvious the human resources are saved.

2. According to the invention, the valve activity test is carried out through the valve automatic test program, the single two-position pneumatic valve can complete the one-time activity test by clicking a mouse for 4 times, the single adjustable hydraulic and pneumatic valve can complete the one-time activity test by clicking a mouse for 7 times, all 15 valves can complete the one-time activity test by clicking a mouse for 90 times, and state signals and test results of the valves can be directly displayed on a picture, so that complicated operations such as picture logic switching, signal forcing, curve wave recording and time checking are omitted, the activity test work of all valves can be completed by a single unit only for 30 minutes, 75% of time is saved compared with the prior art, and the efficiency is greatly improved.

3. The monitoring picture of a single unit can only operate the equipment of the unit, and the invention directly carries out the gate hanging operation and the valve activity test on the picture, thereby effectively avoiding the risk of tripping the unit caused by the error opening of the control logic of other units due to error position. The valve automatic test program is used for operating on a picture, the test can be completed only by clicking a corresponding button, and the whole process does not need to open control logic to force any signal, so that the safety risk caused by forced errors is avoided. And a test exit button is arranged at the operation end of each valve, and after the valve activity test is finished, the valve test program can be exited only by clicking the button, so that the safety risk of non-stop of the unit caused by the omission of a forced signal is effectively avoided. In order to prevent the forgetting to click the exit button after the test is finished, the right upper part of the picture is provided with a fuel machine side valve test and a gas machine side valve test, two buttons are cut off, the test programs of all valves can be exited once only by clicking the two buttons, the gate hanging condition of the machine set is automatically released, and the safety of the whole set of programs is effectively improved.

4. According to the invention, the valve automatic test program is used for directly carrying out the valve activity test on the picture, the test can be completed by clicking corresponding buttons in sequence, the test result is clear on the picture, the whole operation process is very simple and convenient, a series of complicated operations such as point name searching, logic navigation, signal forcing, curve wave recording and the like in the MK-VI control program are avoided, and the operation can be independently carried out by only needing simple training for new staff and remembering the related valve names and specific operation steps of the valve test, so that the difficulty of the test operation process is effectively reduced, and the new staff can quickly and skillfully master the operation process.

5. In order to avoid the occurrence of non-stop accidents of the machine set caused by the fact that a wrong bin is in error to click a valve activity test program on an operation machine set, the invention adds a machine set shutdown signal as an allowable condition of the valve activity test in test input and start test control logic of each valve, and the valve activity test can be carried out only in the shutdown state of the machine set, thereby effectively avoiding the occurrence of unsafe accidents caused by the fact that the valve activity test program on the machine set is in error operation.

Drawings

The invention is further described below with reference to the accompanying drawings and examples:

FIG. 1 is a schematic diagram of a special screen for a valve activity test according to the present invention;

FIG. 2 is a logic diagram of a valve activity test hanging gate;

FIG. 3 is a logic diagram of VA13-1 activity test;

FIG. 4 is a logic diagram of VA13-5 activity test;

FIG. 5 is a logic diagram of VA13-6 activity test;

FIG. 6 is a logic diagram of a VS4-1 activity test;

FIG. 7 is a logic diagram of VG-1 activity test;

FIG. 8 is a logic diagram of VA13-2 activity test;

FIG. 9 is a logic diagram of an SRV activity test;

FIG. 10 is a logic diagram of a D5 activity test;

FIG. 11 is a logic diagram of a PM1 activity test;

FIG. 12 is a logic diagram of a PM4 activity test;

FIG. 13 is a logic diagram of an IGV activity test;

FIG. 14 is a logic diagram of CV activity test;

FIG. 15 is a logic diagram of an ACV activity test;

FIG. 16 is a logic diagram of an IV1 activity test;

fig. 17 is a logic diagram of an IV2 activity test.

Description of the embodiments

As shown in FIG. 1, according to the automatic test method for the valve of the gas turbine, a special picture for the valve activity test is newly added on the original unit monitoring picture, and the 15 operation interfaces for the important valve activity test are arranged on the special picture, so that the activity test of all valves can be completed by directly clicking a mouse on the picture without opening MK-VI control logic, and the automatic test method is very simple and convenient.

The first row of the valve movable test picture is provided with 6 pneumatic valves, namely a two-position purge valve VA13-1, VA13-5 and VA13-6 from left to right, a fuel stop valve VS4-1, a fuel exhaust valve VG-1 and an adjustable purge valve VA13-2. 9 adjustable hydraulic valves are arranged in the second row and the third row of the picture, and a speed ratio valve SRV, a fuel valve D5, PM1 and PM4 are arranged in sequence from left to right, and a compressor inlet rotatable guide vane IGV, a steam turbine high-speed CV, a steam turbine low-speed ACV and a medium-speed IV1 and IV2 are arranged. The right side of the picture is provided with a unit hanging brake button, a hanging brake state indicating block, a hydraulic oil pump running state, a hydraulic oil system pressure indicating block and a total cut-off button for valve tests of a fuel machine side and a steam turbine side.

The operation interfaces of the five two-position pneumatic valves of the purge valves VA13-1, VA13-5 and VA13-6, the fuel stop valve VS4-1 and the fuel exhaust valve VG-1 are the same, four buttons of test input ON, test cut OFF OFF, valve opening OPEN and valve closing CLOSE are arranged below each valve, and four indication blocks for successfully opening, successfully closing, opening faults and closing faults are arranged ON the right side of the valve. When the valve activity test is to be carried out, clicking the test input ON button below the corresponding valve, and displaying orange color after the input is successful. Clicking the OPEN button OPENs the valve, and after the valve is successfully opened, the right OPEN SUCC indicator block displays orange, the valve turns red, and the top displays red OPEN word. Then click CLOSE button and CLOSE the valve, CLOSE the right side CLOSE SUCC instruction piece of valve after closing successfully will show orange, and the valve colour turns green, and the top shows green CLOSED typeface. If the FAULT is turned on, the OPEN FAULT indication block on the right will display orange. If the FAULT is closed, the CLOSE FAULT indication block on the right will display orange. After the valve test is finished, the test cutting OFF button is clicked to withdraw from the valve test, the orange color ON the test input ON button can disappear, and the valve is restored to the normal working mode.

Three buttons of test input ON, test cut OFF and valve opening command CMD are arranged below the valve of the regulating purge valve VA13-2, and state indication blocks of four stroke switches of l33pg2c, l33pg2_1, l33pg2_3 and l33pg2o are arranged ON the right side of the valve. When the valve activity test is to be carried out, the test input ON button below the valve is clicked, the button can display orange after the input is successful, then the valve opening command CMD button is clicked, a window can be popped up to input the opening command of the valve, the corresponding command is input to carry out the full-stroke activity test ON the valve, the state indication blocks of the four stroke switches ON the right side in the switching process can change colors when in the corresponding opening positions of the valve, and the state bars ON the valve body and the upper side can also change colors. After the test is finished, the test cutting OFF button is clicked to withdraw from the valve test, the orange color ON the test input ON button can disappear, and the valve is restored to the normal working mode.

The operation interfaces of 9 adjusting type hydraulic valves of the fuel speed ratio valve SRV, the fuel control valves D5, PM1 and PM4, the compressor inlet rotatable guide vane IGV, the steam turbine high-speed CV, the low-speed ACV, the medium-speed IV1 and the medium-speed IV2 are the same, valve position indication is arranged below each valve, and three buttons of test input ON, test cut OFF and valve opening command CMD are arranged ON the right side of the valve. When the valve activity test is to be carried out, clicking the test input ON button ON the right side of the corresponding valve, displaying orange color by the button after the input is successful, clicking the valve opening command CMD button, popping up a window to input the opening command of the valve, inputting the corresponding command to carry out the full-stroke activity test ON the valve, and checking the valve position signal below the valve to determine whether the command of the valve is consistent with the valve position feedback or not in the test process. After the test is finished, the test cutting OFF button is clicked to withdraw from the valve test, the orange color ON the test input ON button can disappear, and the valve is restored to the normal working mode.

The special control logic for the valve activity test and the manual brake-hanging control logic of the machine set are added in the MK-VI control program, corresponding logic points are added, and data links are made with corresponding buttons and state indication blocks on the picture operation end, so that the functions of all valve activity tests can be completed by directly operating on a picture, the valve states and test results are clear on the picture, and the safety risk caused by signal forcing when the MK-VI control logic is opened is effectively avoided.

1. The two-position pneumatic valve activity test operation steps are as follows:

(1) After the valve is successfully opened, the right OPEN SUCC indication block ON the right side of the valve can display orange, the valve color is changed into red, and the top of the valve displays a red OPEN character.

(2) Clicking the CLOSE button CLOSEs the valve, the CLOSE SUCC indicator block on the right side after the valve is CLOSED successfully will display orange, the valve color will turn green, and the top will display a green CLOSED word. Finally, clicking the OFF button to exit the test. The whole test process can be completed within 2 minutes only by clicking 4 with a mouse, and is very simple and convenient.

(3) For the three valves VA13-1, VA13-5 and VA13-6, the closing limit switch is not disconnected and reset to 0 after the valve opening command is sent for 8 seconds, or the valve opening limit switch is not closed and reset to 1 after the valve opening command is sent for 35 seconds, the OPEN FAULT state indication block on the right side of the valve is triggered to turn orange. For both the fuel cut-off valve VS4-1 and the fuel drain valve VG-1, when the OPEN command is sent for 5 seconds, the valve OPEN limit switch is not closed to be set to 1, or the close limit switch is not disconnected to be reset to 0, the OPEN FAULT state indication block on the right side of the valve is triggered to turn orange. And (3) after the valve is opened, clicking an OFF button to withdraw from the test, finding out the failure reason, and after the failure is removed, performing the valve opening test again according to the step (1) until the test is successful.

(4) When the valve closing instruction is sent for 5 seconds and the valve closing limit switch is not closed to be set to 1, or the opening limit switch is not disconnected to be reset to 0, the closed FAULT state indication block on the right side of the valve is triggered to turn orange. After the valve is closed, the test is stopped by clicking the OFF button, then the fault reason is found, the valve is opened according to the step (1) after the fault is eliminated, and then the valve closing test is carried out according to the step (2) until the test is successful, and the test is stopped by clicking the OFF button after the test is successful.

2. The operation steps of the activity test of the adjustable purge valve VA13-2 are as follows:

(1) Looking at the colors of the status indication blocks of the four secondary travel switches l33pg2c, l33pg2_1, l33pg2_3 and l33pg2o on the right side of the valve, the valve should be in the closed state when the valve is not tested, l33pg2c and l33pg2_1 should be displayed in red, l33pg2_3 and l33pg2o should be displayed in green, and the test can be performed in a normal state.

(2) Clicking the ON button below the valve drops the test, and after the test is successful, the button will display orange. Clicking the CMD button again can pop up a window and can input the opening instruction of the valve, input corresponding instruction and make the valve open slowly, look over the action condition of four pairs of travel switches on the right side of the valve, in the opening process, first l33pg2c, l33pg2_1 are 0 again in proper order, then l33pg2_3, l33pg2o are 0 to 1 in proper order, when the valve is fully opened, l33pg2_3 and l33pg2o should display red, and l33pg2c and l33pg2_1 should display green. Checking and confirming whether the valve opening instruction is consistent with the action value of the switch, and if not, adjusting the switch. And then inputting a command to enable the valve to be slowly closed, in the closing process, firstly, l33pg2o and l33pg2_3 are sequentially reset from 1 to 0, then, l33pg2_1 and l33pg2c are sequentially reset from 0 to 1, checking and confirming whether the valve opening command is consistent with the action value of the switch, if not, carrying out a test after the switch is regulated, and clicking an OFF button to exit the test after the test is finished.

3. The operation steps of the activity test of the adjustable hydraulic valve are as follows:

(1) Firstly, checking whether a hydraulic oil pump runs ON the right side of a picture, checking whether the pressure of a hydraulic oil system is normal, and after the hydraulic oil pump is normal, clicking two buttons L4T F-ON and LFY 5040F-ON in sequence to hang a brake ON a unit, and checking the state of the unit ON the right side to check that the brake is hung successfully. Check the valve positions of 9 hydraulic valves: the SRV, D5, PM1, PM4, GV, ACV valve opening is 0%, the IV1, IV2 valve opening is 100%, and the IGV valve opening is 29 °.

(2) Clicking the ON button ON the right side of the valve puts into test, and after the test is successful, the button displays orange. Clicking the CMD button, popping up a window for inputting the opening instructions of the valve, inputting the opening instructions of 0%, 25%, 50%, 75% and 100% to perform the full stroke switch activity test on the valve, and checking whether the valve position signals below the valve are consistent with the instructions. (the zero position of the IGV is 29 degrees, the full degree is 88 degrees, the zero positions of other 8 valves are all 0 percent, and the full degree is 100 percent), if the deviation is out of range, the fault cause needs to be ascertained, and the valve is tested again after the fault is removed.

(3) Clicking the OFF button on the right side of the valve after the test is completed to exit the test. Then click L4T F-OFF and LFY 5040F-OFF two buttons in turn to release the hanging brake condition of the unit, check the state of the unit on the right side of the picture and confirm that the unit has tripped.

4. Action and use method of valve test total cutting button

(1) The automatic test program is specially designed with a GTTST OFF and STT OFF valve test total cut button, the GTTST OFF button controls 11 valves on the side of the fuel engine, the STT OFF button controls 4 valves on the side of the fuel engine, the action of the GTTST OFF button controls the movable test program of 15 valves at one time, and the brake hanging condition of the unit is released, so that the safety accidents caused by forgetting to click the test cut button after any valve test is finished and forgetting to click the L4T F-OFF and LFY 5040F-OFF buttons after the hydraulic valve test is finished are effectively avoided.

(2) After the activity tests of the 15 valves are completed, clicking the two buttons of GTTST OFF and STST OFF on the right side of the picture in sequence can lead all the valves to exit the test program once, simultaneously automatically releasing the machine set brake hanging condition to trip the machine set, checking the picture to confirm that the state display of all the valves and the machine set is restored to the normal mode.

The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement the same according to the content of the present invention, and are not intended to limit the scope of the present invention. All modifications made according to the spirit of the main technical proposal of the invention should be covered in the protection scope of the invention.

Claims

1. An automatic test method for a gas turbine valve, the test valve comprising: the method is characterized by comprising the following steps of:

2. The automatic test method of valve of gas turbine according to claim 1, wherein the operation interfaces of the five two-position pneumatic valves of the purge valves VA13-1, VA13-5, VA13-6, the fuel cut-OFF valve VS4-1 and the fuel exhaust valve VG-1 are the same, four buttons of test input ON, test cut OFF, valve OPEN and valve CLOSE are arranged below each valve, and four indication blocks of successful opening, successful closing, OPEN failure and CLOSE failure are arranged ON the right side of the valve;

3. The automatic test method for a valve of a gas turbine according to claim 2, wherein three buttons of test ON, test OFF, and valve opening command CMD are arranged below the valve of the regulated purge valve VA13-2, and status indication blocks of four stroke switches of l33pg2c, l33pg2_1, l33pg2_3, and l33pg2o are arranged ON the right side of the valve;

4. The automatic test method of gas turbine valve according to claim 3, wherein the fuel speed ratio valve SRV, the fuel control valves D5, PM1, PM4, the compressor inlet rotatable guide vane IGV, the 9 adjustment type hydraulic valve operation interfaces of the steam turbine high-adjustment CV, low-adjustment ACV, medium-adjustment IV1, IV2 are the same, the valve position indication is provided below each valve, and three buttons of test input ON, test cut OFF, and valve opening command CMD are arranged ON the right side of the valve;

5. The automatic test method of gas turbine valve according to claim 3, wherein 15 special control logics for valve activity test and manual brake-hanging control logics of the machine set are added in MK-VI control program, corresponding logic points are added, and data links are made with corresponding buttons and state indication blocks on the operating end of a picture, so that the function of completing all valve activity tests by directly operating on the picture is realized.