CN110108927A - A kind of gas turbine switching value feedback malfunction elimination method - Google Patents

A kind of gas turbine switching value feedback malfunction elimination method Download PDF

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Publication number
CN110108927A
CN110108927A CN201910307821.2A CN201910307821A CN110108927A CN 110108927 A CN110108927 A CN 110108927A CN 201910307821 A CN201910307821 A CN 201910307821A CN 110108927 A CN110108927 A CN 110108927A
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CN
China
Prior art keywords
switching value
feedback signal
value feedback
control system
route
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
CN201910307821.2A
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Chinese (zh)
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CN110108927B (en
Inventor
魏昌淼
彭涛
蔡其波
商显耀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Shipbuilding Industry Corp Seventh O Three Research Institute Wuxi Branch
703th Research Institute of CSIC Wuxi Branch
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China Shipbuilding Industry Corp Seventh O Three Research Institute Wuxi Branch
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Priority to CN201910307821.2A priority Critical patent/CN110108927B/en
Publication of CN110108927A publication Critical patent/CN110108927A/en
Application granted granted Critical
Publication of CN110108927B publication Critical patent/CN110108927B/en
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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3277Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
    • G01R31/3278Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40Testing power supplies
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/66Testing of connections, e.g. of plugs or non-disconnectable joints

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Safety Devices In Control Systems (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

The invention discloses a kind of gas turbine switching values to feed back malfunction elimination method, pass through the method for segmentation investigation, to determine the fault point of switching value feedback failure, this method can quickly and effectively check switching value feedback failure, be of great significance to gas turbine safe operation.

Description

A kind of gas turbine switching value feedback malfunction elimination method
Technical field
The invention belongs to technical field of gas turbine more particularly to a kind of gas turbine switching value to feed back malfunction elimination side Method.
Background technique
Gas turbine as a kind of high-speed rotating machine, need lubricating oil lubricate, cooling bearing, if lubricating oil pressure it is too low will The scaling loss for causing bearing shell has important safety influence to combustion engine ontology;If fuel inlet hypotony will cause the abrasion of fuel pump And the failures such as combustion chamber is flame-out, combustion pulsation.Gas turbine uses switching value feedback system often to judge that gas turbine is each Whether pressure value is normal, whether actuator position is correct.In gas turbine actual moving process, often occur because switching value is anti- Feedback measurement failure causes the operation troubles such as gas turbine drop operating condition, shutdown.
Summary of the invention
The purpose of the present invention is to provide a kind of gas turbine switching values to feed back malfunction elimination method.
The purpose of the present invention is what is be implemented with the following technical solutions: a kind of gas turbine switching value feedback malfunction elimination side Method, which comprises the following steps:
Whether step 1 checks whether switching value feedback loop power supply is normal, required with multimeter measurement supply voltage In range, if abnormal, power supply should be checked, be replaced;
Step 2 pulls out switching value feedback signal device institute connection signal plug, uses cable if step 1 checks that power supply is normal Short circuit connects the Signal plug, and control system monitoring panel shows that the switching value feedback signal is 0, it is anti-can to exclude switching value at this time The failure of feedback signal device;If control system monitoring panel shows that the switching value feedback signal is 1, switching value feedback letter can determine whether Number device failure answers switch amount feedback signal device to replace;
Step 3 connects wiring with cable short circuit if step 2 inspection eliminates the failure of switching value feedback signal device Interconnecting device connecting terminal can exclude wiring at this time and turn if control system monitoring panel shows that the switching value feedback signal remains as 0 Connect the failure of route between box and switching value feedback signal device;If control system monitoring panel shows the switching value feedback signal and is 1, then it can determine whether that route exists abnormal between wiring switching box and switching value feedback signal device, copes at this section of connection plug Check and circuit on-off situation is checked that replaceable route is disposed and verifies;
Step 4, if step 3 judges that route is without exception between wiring switching box and switching value feedback signal device, can determine whether There may be failures for route or control system switch amount feedback collection board between wiring switching box and control system.Answer butted line Route carries out continuity check between interconnecting device and control system, if checking, route is without exception, answers switch amount feedback collection board It opens and inspect, replace verifying.
The invention discloses a kind of gas turbine switching values to feed back malfunction elimination method, the method checked by segmentation, with Determine the fault point of switching value feedback failure, this method can quickly and effectively check switching value feedback failure, to gas turbine safety Operation is of great significance.
Detailed description of the invention
Fig. 1 is gas turbine switching value feedback operation schematic diagram.
Specific embodiment
As shown in Figure 1, the invention discloses a kind of gas turbine switching values to feed back malfunction elimination method, when gas turbine control When system acquisition switching value processed occurs abnormal, following check should be carried out:
Step 1 checks whether switching value ring current ± 24V DC voltage is normal, is with multimeter measurement loop voltage It is no in claimed range, if measurement result is abnormal, power supply should be checked, be replaced.
Step 2 pulls out switching value feedback signal device institute connection signal plug if step 1 checks that ring current is normal, uses Cable short circuit connects two connecting terminal of the Signal plug A1, A2, and control system monitoring panel shows that the switching value feedback signal is 0, the failure of switching value feedback signal device can be excluded at this time;If control system monitoring panel shows that the switching value feedback signal is 1, It then can determine whether switching value feedback signal device failure, switch amount feedback signal device answered to replace.
Step 3 connects wiring with cable short circuit if step 2 inspection eliminates the failure of switching value feedback signal device Interconnecting device C1, C2 connecting terminal can exclude at this time if control system monitoring panel shows that the switching value feedback signal remains as 0 The failure of route between wiring switching box and switching value feedback signal device;If control system monitoring panel shows that the switching value is fed back Signal is 1, then can determine whether that route exists abnormal between wiring switching box and switching value feedback signal device, copes with this section of connection It carries out checking at plug and circuit on-off situation is checked that replaceable route is disposed and verifies.
Step 4, if step 3 judges that route is without exception between wiring switching box and switching value feedback signal device, can determine whether There may be failures for route or control system switch amount feedback collection board between wiring switching box and control system.Answer butted line Route carries out continuity check between interconnecting device and control system, if checking, route is without exception, answers switch amount feedback collection board It opens and inspect, replace verifying.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention, Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features. All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention Within protection scope.

Claims (1)

1. a kind of gas turbine switching value feeds back malfunction elimination method, which comprises the following steps:
Whether step 1 checks whether switching value feedback loop power supply is normal, with multimeter measurement supply voltage in claimed range It is interior, if abnormal, power supply should be checked, be replaced;
Step 2 pulls out switching value feedback signal device institute connection signal plug if step 1 checks that power supply is normal, with cable short circuit The Signal plug is connected, control system monitoring panel shows that the switching value feedback signal is 0, can exclude switching value feedback letter at this time The failure of number device;If control system monitoring panel shows that the switching value feedback signal is 1, switching value feedback signal device can determine whether Failure answers switch amount feedback signal device to replace;
Step 3, if step 2 inspection eliminates the failure of switching value feedback signal device, with cable short circuit connection wiring switching Box connecting terminal can exclude wiring switching box if control system monitoring panel shows that the switching value feedback signal remains as 0 at this time The failure of route between switching value feedback signal device;If control system monitoring panel shows that the switching value feedback signal is 1, It can determine whether that route exists abnormal between wiring switching box and switching value feedback signal device, should carry out at this section of connection plug It checks and circuit on-off situation is checked that replaceable route is disposed and verifies;
Step 4, if step 3 judges that route is without exception between wiring switching box and switching value feedback signal device, can determine whether wiring There may be failures for route or control system switch amount feedback collection board between interconnecting device and control system.Butted line is answered to transfer Route carries out continuity check between box and control system, if checking, route is without exception, switch amount feedback collection board is answered to open and inspect, Replacement verifying.
CN201910307821.2A 2019-04-17 2019-04-17 Method for troubleshooting switching value feedback fault of gas turbine Active CN110108927B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910307821.2A CN110108927B (en) 2019-04-17 2019-04-17 Method for troubleshooting switching value feedback fault of gas turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910307821.2A CN110108927B (en) 2019-04-17 2019-04-17 Method for troubleshooting switching value feedback fault of gas turbine

Publications (2)

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CN110108927A true CN110108927A (en) 2019-08-09
CN110108927B CN110108927B (en) 2021-10-15

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CN201496202U (en) * 2009-09-24 2010-06-02 吴建华 Automatic fire-service measurement, control and emergency system of wind generator nacelle
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CN108008453A (en) * 2017-11-23 2018-05-08 中国航发沈阳黎明航空发动机有限责任公司 A kind of turbine oil system metal filings on-line monitoring system
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