CN109489734A - Generator hydrogen system hydrogen population parameter integrates on-line monitoring system - Google Patents
Generator hydrogen system hydrogen population parameter integrates on-line monitoring system Download PDFInfo
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- CN109489734A CN109489734A CN201811631633.7A CN201811631633A CN109489734A CN 109489734 A CN109489734 A CN 109489734A CN 201811631633 A CN201811631633 A CN 201811631633A CN 109489734 A CN109489734 A CN 109489734A
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- 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
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
Generator hydrogen system hydrogen population parameter integrates on-line monitoring system, including cabinet, and through terminal disk, higher-pressure region monitoring pipeline, low-pressure area monitoring pipeline, high point monitoring pipeline, low spot monitoring pipeline, emptying pipeline are provided in cabinet and mends hydrogen pipeline；It is provided with power supply interface, hydrogen leak detection signal output interface, hydrogen sniffer probe input interface, hydrogen on through terminal disk and presses that high remote alarm interface, hydrogen forces down remote alarm interface, hydrogen presses through low remote alarm interface, oxygen signal interface and differential pressure signal interface in generator Pressure monitoring interface, hydrogen humidity signaling interface, hydrogen purity signaling interface, hydrogen.The present invention has monitoring parameters comprehensive, and integration of equipments degree is high, and equipment updates, is easy to maintain, monitoring is sufficient, system operatio is simply easy to maintain, is conducive to fault analysis and handling and centralized control system.
Description
Technical field
The invention belongs to GTCC power plant hydrogen on-line monitoring technique fields, and in particular to a kind of gas generator hydrogen system hydrogen
Population parameter integrates on-line monitoring system, realizes hydrogen population parameter (including oxygen in hydrogen purity, humidity, hydrogen, leakage hydrogen, pressure, pressure
Power switch alarm, mends hydrogen flowrate etc. at differential pressure) Highgrade integration on-line monitoring.
Background technique
The monitoring of generator hydrogen is significant to the operation for ensureing that engine health is stabilized the economy." prevent electric power raw
Production accident 25 counter to arrange " relevant criterions such as 2014 editions propose generator hydrogen on-line monitoring and clearly require.Especially
After the quick-fried accident of Huaneng Beijing Thermal Power Plant " 3.13 " hydrogen in 2015, and each electricity power group and power plant are caused to the hydrogen-cooled system of generator
Unite safe higher level, a greater degree of pay attention to.
Now with Installation in Plant fuel engine power generation machine hydrogen on-line monitoring system, be primarily present following problems:
The dispersion of hydrogen parameter monitoring.The hydrogen leakage monitor of existing system is in 6.9 meters of layers, and other parameters are in 0 meter of layer, and integration degree is not
It is high.
Main instrument aging is fallen behind, and daily maintenance is inconvenient.The aging of system body instrument, measurement accuracy and reliability decrease are tight
Weight.Putting equipment in service has 10 years so far, main body measuring part aging, and due to domestic detection requirement, the development of the type product is changed
In generation, original equipment was eliminated substantially, and later maintenance is difficult quickly.The measuring instrument of other parts, existing market storage is smaller, spare part
It is more expensive.There are also other instrument such as dew point hygrometer, product quality decline, accuracy of measurement is reduced, and inspection often has unqualified phenomenon.Hydrogen
Air-flow flowmeter measurement mends hydrogen flowrate inaccuracy.Therefore accuracy and reliability is difficult to ensure, can not be high for the safety of generating set
Effect operation escorts.
Monitoring is insufficient and has security risk.According to new countermeasure and technical specification, need to increase to the hydrogen-cooled device of unit, oil
The hydrogen leakage monitor in the regions such as case, and increase micro- oxygen instrument, to avoid unit leakage hydrogen gas explosion and reinforce hydrogen quality supervision.In addition, former
System pipeline leads to system complex due to Earlier designs, and the leakproofness that ageing equipment reduces pipeline increases pipeline system
The slip of system brings hydric safe hidden danger.
System operation maintenance is complicated.It is criss-cross to monitor system flow pipeline, it is complicated for operation cumbersome, it is unfavorable for operating and ties up
Shield.
System no data record and curve retain.Only translator unit data retain and inquire to unit DCS, data existing system
Extremely constant, new system sets up data output interface, is sent to chemical centralized control system, convenient that historical data is retained and looked into
It askes, can mend hydrogen, leakage, pressure oscillation etc. for instrument fault and unit and data and curves and record are provided, be conducive at accident analysis
Reason.
Summary of the invention
The present invention provides a kind of accurate, safe convenient for operation, monitoring numerical value to solve shortcoming in the prior art
Highly reliable generator hydrogen system hydrogen population parameter integrates on-line monitoring system.
In order to solve the above technical problems, the present invention adopts the following technical scheme: generator hydrogen system hydrogen population parameter is integrated
On-line monitoring system, including cabinet are provided with Power generator fan high pressure flange interface, Power generator fan low pressure on the cabinet body of cabinet
Mouth flange-interface, generator low spot flange-interface, tail gas emptying flange-interface, is mended generator high point flange-interface
Hydrogen gas flange-interface and hydrogen outlet flange-interface is mended, through terminal disk, higher-pressure region monitoring pipeline, low is provided in cabinet
Pressure area monitors pipeline, high point monitoring pipeline, low spot monitoring pipeline, emptying pipeline and mends hydrogen pipeline；Higher-pressure region monitors pipeline and hair
The connection of electric motor fan high pressure flange interface, low-pressure area monitoring pipeline are connect with Power generator fan low pressure port flange-interface, high point prison
Test tube road is connect with generator high point flange-interface, and low spot monitoring pipeline is connect with generator low spot flange-interface,
Emptying pipeline and tail gas emptying flange-interface connect, mend the two-port of hydrogen pipeline respectively with benefit hydrogen gas flange-interface and benefit hydrogen
The connection of gas outlet flange-interface；
Power supply interface, hydrogen leak detection signal output interface, hydrogen sniffer probe input interface, hydrogen pressure are provided on through terminal disk
High remote alarm interface, hydrogen force down remote alarm interface, hydrogen presses through low remote alarm interface, generator Pressure monitoring interface, hydrogen humidity letter
Number interface, hydrogen purity signaling interface, oxygen signal interface and differential pressure signal interface in hydrogen.
It mends and is provided with mass flowmenter on hydrogen pipeline, mass flowmenter is connected with flow indicator.
Differential pressure transmitter, differential pressure gauge and the first normally close valve are parallel between higher-pressure region monitoring pipeline and low-pressure area monitoring pipeline
Door；Differential pressure transmitter is connect by signal wire with through terminal disk；
The first normally opened valve and the second normally opened valve, the first normally opened valve and Power generator fan are provided on higher-pressure region monitoring pipeline
The distance of high pressure flange interface is less than the second normally opened valve at a distance from Power generator fan high pressure flange interface；
Be provided on low-pressure area monitoring pipeline the third normally opened valve being sequentially increased apart from Power generator fan low pressure port flange-interface,
4th normally opened valve and the 5th normally opened valve；
Differential pressure transmitter is between the second normally opened valve and the 5th normally opened valve, differential pressure gauge and the first normal closed gate and higher-pressure region
The tie point of monitoring pipeline is respectively positioned between the first normally opened valve and the second normally opened valve, differential pressure gauge and the first normal closed gate with it is low
The tie point of pressure area monitoring pipeline is respectively positioned between the 4th normally opened valve and the 5th normally opened valve.
The one end for emptying pipeline is connect with tail gas emptying flange-interface, and one end that low spot monitors pipeline is low with generator
Point flange-interface connection, the other end for emptying pipeline are connect with the other end of low spot monitoring pipeline；
Low spot monitors pipeline and evacuated tube road along generator low spot flange-interface to the direction of tail gas emptying flange-interface
It is disposed with the second normal closed gate, the 6th normally opened valve, filter, the 7th normally opened valve, third normal closed gate, purity pick-up
Device, first flowmeter and the 4th normal closed gate；Purity transmitter is connected with purity display, and low spot monitors normal in third on pipeline
Pressure transmitter and the 8th normally opened for controlling gas path on-off pressure transmitter is connected between valve closing door and purity transmitter
Valve, purity transmitter, purity display and pressure transmitter pass through signal wire and connect with through terminal disk；
One end of high point monitoring pipeline is connect with generator high point flange-interface, and the other end of high point monitoring pipeline is connected to
On low spot monitoring pipeline between second normal closed gate and the 6th normally opened valve, the 5th normally close valve is provided on high point monitoring pipeline
Door；
It is provided with sample tap between the 7th normally opened valve and third normal closed gate on low spot monitoring pipeline, is provided at sample tap
6th normal closed gate.
It further include oxygen signal piping in hydrogen, one end of oxygen signal piping is connected to first flowmeter and the 4th normally close valve in hydrogen
Between door, the other end of oxygen signal piping is connected between tail gas emptying flange-interface and the 4th normal closed gate in hydrogen, oxygen in hydrogen
The 7th normal closed gate, second flow are disposed with by the direction of first flowmeter to tail gas emptying flange-interface on signal piping
Meter, the 9th normally opened valve, pressure reducer, third flowmeter, oxygen transmitter and the tenth normally opened valve；
Position of the oxygen signal piping between second flowmeter and the 9th normally opened valve and low spot monitoring pipeline are normal the 7th in hydrogen
Position connection between valve opening door and third normal closed gate；
It is provided with the first calibration mouth in hydrogen on oxygen signal piping between the 9th normally opened valve and pressure reducer, is set at the first calibration mouth
It is equipped with the 8th normal closed gate；
Oxygen transmitter connects aerobic display, and oxygen transmitter and oxygen display pass through signal wire and connect with through terminal disk.
Third normal closed gate is parallel with a humidity detection pipeline, and it is normally opened to be disposed with the 11st on humidity detection pipeline
Valve, humidity transmitter and the 12nd normally opened valve, humidity transmitter are connected with wetness display unit, and humidity transmitter and humidity are aobvious
Show that device passes through signal wire and connect with through terminal disk.
It further include calibration pipeline, the one end for calibrating pipeline is connected to Power generator fan high pressure flange interface and the first normally open valve
On higher-pressure region monitoring pipeline between door, the 9th normal closed gate is arranged in the other end for calibrating pipeline, and calibration pipeline is respectively with second
High point monitoring pipeline and low spot between normal closed gate and the 6th normally opened valve monitor piping connection；It calibrates on pipeline in higher-pressure region
The 13rd normally opened valve is provided between monitoring pipeline and low spot monitoring pipeline.
Further include respectively with emptying pipeline and low-pressure area monitoring piping connection pressure monitoring pipeline, pressure monitoring pipeline with
The junction of pipeline is emptied between first flowmeter and the 4th normal closed gate, pressure monitoring pipeline and low-pressure area monitor pipeline
Junction between the 4th normally opened valve and third normally opened valve；First pressure monitoring branch is parallel on pressure monitoring pipeline
Pipeline, second pressure monitoring bye-pass, third pressure monitoring bye-pass, the 4th pressure monitoring bye-pass and blowoff line, first
First pressure switch is provided on pressure monitoring bye-pass and for controlling the 14th normally opened of gas path on-off first pressure switch
Valve, be provided on second pressure monitoring bye-pass second pressure switch and for controlling gas path on-off second pressure switch the
15 normally opened valves are provided with third pressure switch on third pressure monitoring bye-pass and for controlling gas path on-off third pressure
16th normally opened valve of switch is provided with pressure gauge on the 4th pressure monitoring bye-pass and for controlling gas path on-off pressure gauge
The 17th normally opened valve, be provided with the tenth normal closed gate on blowoff line；Empty pipeline and low-pressure area monitoring piping connection it
Between one section of pressure monitoring pipeline on be provided with the 18th normally opened valve；
First pressure switch, second pressure switch and third pressure switch pass through signal wire and connect with through terminal disk.
By adopting the above technical scheme, the invention has the following advantages:
1, hydrogen population parameter integrated monitor: be integrated with generator hydrogen system all hydrogen parameters (including hydrogen purity, humidity,
Oxygen, leakage hydrogen, pressure, pressure switch alarm, differential pressure, benefit hydrogen flowrate etc. in hydrogen), integration of equipments degree is high.
2, equipment updates, is easy to maintain: replacement hydrogen transmitter, precision are high.Replace pressure transmitter, differential pressure transmitter,
Pressure switch, band display, is observed more intuitive on the spot.Increase travel switch in cabinet and control explosion-proof illuminating lamp, is just patrolled with daily
Inspection maintenance.
3, monitoring is sufficient: according to new countermeasure and technical specification, the present invention increases to the hydrogen-cooled device of unit, main fuel tank etc.
The hydrogen leakage monitor in region, and increase oxygen transmitter (micro- oxygen instrument), avoid unit leakage hydrogen gas explosion and reinforce hydrogen quality supervision.
4, system operatio is simply easy to maintain: monitoring system flow piping code, easy to operate, and cabinet surface is equipped with design
Flow chart is conducive to operation and maintenance.
5, data upload chemical centralized control room.Not only translator unit data are also set up data output and are connect to unit DCS
Mouthful, chemical centralized control system is transferred data to, it is convenient that historical data is retained and inquired, it can be mended for instrument fault and unit
Hydrogen, leakage, pressure oscillation etc. provide data and curves and record, are conducive to fault analysis and handling.All detection datas design two-way
Simulation output is sent all the way to DCS, and another way is spare or send to cyclisation centralized control system.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
As shown in Figure 1, generator hydrogen system hydrogen population parameter of the invention integrates on-line monitoring system, including cabinet 1, machine
Power generator fan high pressure flange interface 2, Power generator fan low pressure port flange-interface 3, generator are provided on the cabinet body of cabinet 1
High point flange-interface 4, tail gas emptying flange-interface 6, mends 7 and of hydrogen gas flange-interface at generator low spot flange-interface 5
Hydrogen outlet flange-interface 8 is mended, through terminal disk 9, higher-pressure region monitoring pipeline 10, low-pressure area monitoring pipeline are provided in cabinet 1
11, high point monitoring pipeline 12, low spot monitoring pipeline 13, emptying pipeline 14 and benefit hydrogen pipeline 15；Higher-pressure region monitors pipeline 10 and hair
Electric motor fan high pressure flange interface 2 connects, and low-pressure area monitoring pipeline 11 is connect with Power generator fan low pressure port flange-interface 3, high
Point monitoring pipeline 12 is connect with generator high point flange-interface 4, and low spot monitors pipeline 13 and generator low spot flange
Interface 5 connects, and emptying pipeline 14 and tail gas emptying flange-interface 6 connect, the two-port of benefit hydrogen pipeline 15 respectively with benefit hydrogen into
Gas flange-interface 7 and benefit hydrogen outlet flange-interface 8 connect；
Leakage hydrogen display 57, power supply interface 16, hydrogen leak detection signal output interface 17, hydrogen inspection are provided on through terminal disk 9
Leakage probe input interface 18, the high remote alarm interface 19 of hydrogen pressure, hydrogen forces down remote alarm interface 20, hydrogen presses through low remote alarm interface 21, generator
Air pressure inside monitors interface 22, hydrogen humidity signaling interface 23, hydrogen purity signaling interface 24, oxygen signal interface 25 and poor in hydrogen
Press signaling interface 26.
It mends and is provided with mass flowmenter 27 on hydrogen pipeline 15, mass flowmenter 27 is connected with flow indicator 28.
Differential pressure transmitter 29, differential pressure gauge 30 and the are parallel between higher-pressure region monitoring pipeline 10 and low-pressure area monitoring pipeline 11
One normal closed gate 88；Differential pressure transmitter 29 is connect by signal wire with through terminal disk 9；
The first normally opened valve 86 and the second normally opened valve 97, the first normally opened valve 86 and hair are provided on higher-pressure region monitoring pipeline 10
The distance of electric motor fan high pressure flange interface 2 is less than the second normally opened valve 97 at a distance from Power generator fan high pressure flange interface 2；
The third normally open valve being sequentially increased apart from Power generator fan low pressure port flange-interface 3 is provided on low-pressure area monitoring pipeline 11
The 95, the 4th normally opened valve 87 of door and the 5th normally opened valve 96；
Differential pressure transmitter 29 is between the second normally opened valve 97 and the 5th normally opened valve 96, differential pressure gauge 30 and the first normal closed gate
88 and higher-pressure region monitoring pipeline 10 tie point be respectively positioned between the first normally opened valve 86 and the second normally opened valve 97, differential pressure gauge 30
And first the tie point of normal closed gate 88 and low-pressure area monitoring pipeline 11 be respectively positioned on the 4th normally opened valve 87 and the 5th normally opened valve
Between 96.
The one end for emptying pipeline 14 is connect with tail gas emptying flange-interface 6, and low spot monitors one end and the generator of pipeline 13
Internal low spot flange-interface 5 connects, and the other end for emptying pipeline 14 is connect with the other end of low spot monitoring pipeline 13；
Low spot monitors and empties flange-interface 6 along generator low spot flange-interface 5 to tail gas on pipeline 13 and emptying pipeline 14
Direction be disposed with the second normal closed gate 81, the 6th normally opened valve 103, filter 58, the 7th normally opened valve 101, third
Normal closed gate 106, purity transmitter 31, first flowmeter 32 and the 4th normal closed gate 102；Purity transmitter 31 is connected with purity
Display 33, low spot monitor and are connected with pressure transmitter between third normal closed gate 106 and purity transmitter 31 on pipeline 13
34 and the 8th normally opened valve 107 for controlling gas path on-off pressure transmitter 34, purity transmitter 31,33 and of purity display
Pressure transmitter 34 is connect by signal wire with through terminal disk 9；
One end of high point monitoring pipeline 12 is connect with generator high point flange-interface 4, and high point monitors the other end of pipeline 12
It is connected on the low spot monitoring pipeline 13 between the second normal closed gate 81 and the 6th normally opened valve 103, high point monitors on pipeline 12
It is provided with the 5th normal closed gate 80；
It is provided with sample tap 35 between the 7th normally opened valve 101 and third normal closed gate 106 on low spot monitoring pipeline 13, samples
The 6th normal closed gate 100 is provided at mouth 35.
The invention also includes oxygen signal piping 36 in hydrogen, one end of oxygen signal piping 36 is connected to first flowmeter 32 in hydrogen
And the 4th between normal closed gate 102, the other end of oxygen signal piping 36 is connected to tail gas emptying flange-interface 6 and the 4th often in hydrogen
Between valve closing door 102, successively set on oxygen signal piping 36 by the direction of first flowmeter 32 to tail gas emptying flange-interface 6 in hydrogen
It is equipped with the 7th normal closed gate 82, second flowmeter 40, the 9th normally opened valve 83, pressure reducer 37, third flowmeter 38, oxygen transmitter
39 and the tenth normally opened valve 94；
Position of the oxygen signal piping 36 between second flowmeter 40 and the 9th normally opened valve 83 and low spot monitor pipeline 13 in hydrogen
Position connection between the 7th normally opened valve 101 and third normal closed gate 106；
It is provided with the first calibration mouth 41, the first school in hydrogen on oxygen signal piping 36 between the 9th normally opened valve 83 and pressure reducer 37
The 8th normal closed gate 105 is provided at quasi- mouth 41；
Oxygen transmitter 39 connects aerobic display 42, and oxygen transmitter 39 and oxygen display 42 pass through signal wire and through terminal disk
9 connections.
Third normal closed gate 106 is parallel with a humidity detection pipeline 43, and is disposed on humidity detection pipeline 43
11 normally opened valves 108, humidity transmitter 44 and the 12nd normally opened valve 109, humidity transmitter 44 are connected with wetness display unit
45, humidity transmitter 44 and wetness display unit 45 are connect by signal wire with through terminal disk 9.
The invention also includes calibration pipeline 46, one end of calibration pipeline 46 is connected to Power generator fan high pressure flange interface 2
On higher-pressure region monitoring pipeline 10 between the first normally opened valve 86, the 9th normal closed gate is arranged in the other end of calibration pipeline 46
104, the high point between the second normal closed gate 81 and the 6th normally opened valve 103 monitors pipeline 12 and low spot to calibration pipeline 46 respectively
Pipeline 13 is monitored to connect；It is monitored on calibration pipeline 46 in higher-pressure region and is provided with the 13rd between pipeline 10 and low spot monitoring pipeline 13
Normally opened valve 84.
The invention also includes the pressure monitoring pipeline 47 connecting respectively with emptying pipeline 14 and low-pressure area monitoring pipeline 11, pressures
The junction of power monitoring pipeline 47 and emptying pipeline 14 is between first flowmeter 32 and the 4th normal closed gate 102, pressure prison
Test tube road 47 and the junction of low-pressure area monitoring pipeline 11 are between the 4th normally opened valve 87 and third normally opened valve 95；Pressure
First pressure monitoring bye-pass 48, second pressure monitoring bye-pass 49, third pressure monitoring branch pipe are parallel on monitoring pipeline 47
Road 50, the 4th pressure monitoring bye-pass 51 and blowoff line 52 are provided with first pressure and open on first pressure monitoring bye-pass 48
53 and the 14th normally opened valve 89 for controlling gas path on-off first pressure switch 53 are closed, second pressure monitors on bye-pass 49
It is provided with second pressure switch 54 and the 15th normally opened valve 90 for controlling gas path on-off second pressure switch 54, third pressure
Power monitoring bye-pass 50 on be provided with third pressure switch 55 and for controlling gas path on-off third pressure switch 55 the 16th
Normally opened valve 91, be provided on the 4th pressure monitoring bye-pass 51 pressure gauge 56 and for controlling gas path on-off pressure gauge 56
17 normally opened valves 92 are provided with the tenth normal closed gate 93 on blowoff line 52；It empties pipeline 14 and low-pressure area monitors pipeline 11
The 18th normally opened valve 85 is provided on one section of pressure monitoring pipeline 47 between connection；
First pressure switch 53, second pressure switch 54 and third pressure switch 55 are connected by signal wire and through terminal disk 9
It connects.
The detailed process of the present invention at runtime are as follows:
1, the inspection of Qi Jiqian
The present invention must guarantee the air-tightness of system pipeline before starting operation
In dangerous gaseous environment, equipment forbids in electrification wiring and is engaged in each uncapping for function instrument to debug
Differential pressure gauge 30, differential pressure transmitter 29, the first normal closed gate 88 must be opened, and only monitor pipeline 10, low pressure in higher-pressure region
Area's monitoring pipeline 11 can close the first normal closed gate in the case of being all connected, and differential pressure gauge 30 is made to work, other valves, which are in, closes
State.
Whether checking process connector gas circuit pipeline has loosening and disengaging, it is ensured that without leakage.
Check that whether device falls off in cabinet 1, loses.
2, generator opens the operation of machine gas displacement
When equipment starts filling CO 2 displaced air, (it is normally closed to open the 5th from the sampling of generator high point flange-interface 4
Valve 80, the 6th normally opened valve 103 and the 7th normally opened valve 101, isolation humidity transmitter 44(close the 11st normally opened valve
108, the 12nd normally opened valve 109 opens third normal closed gate 106), isolation from oxygen transmitter 39 (closes the 9th normally opened valve 83
With the tenth normally opened valve 94), starting purity transmitter 31(opens the 4th normal closed gate 102, and adjustment first flowmeter 32 is
0.5SCFH), gas concentration lwevel is observed by purity display 33, carbon dioxide gas is discharged into emptying pipeline 14, Zhi Daohe
Lattice.
When equipment starts hydrogen displacement carbon dioxide, (5 constant virtues is closed from the sampling of generator low spot flange-interface 5
Valve closing door 80 opens the second normal closed gate 81), isolation humidity transmitter 44(closes the 11st normally opened valve the 108, the 12nd often
Valve opening door 109 opens third normal closed gate 106), isolation from oxygen transmitter 39 (closes the 9th normally opened valve 83 and the tenth normally open valve
94), investment starting purity transmitter 31(opens the 4th normal closed gate 102 to door, and adjustment first flowmeter 32 is 0.5SCFH), lead to
It crosses purity display 33 and observes density of hydrogen, hydrogen is discharged into emptying pipeline 14, until qualification.
When hydrogen purity qualification, start to boost, pressure reaches specified hydrogen and presses 0.4 megapascal.Open simultaneously pressure gauge
56 (opening the 17th normally opened valve 92), pressure transmitter 34 (opening the 8th normally opened valve 107), first pressure switch 53 (are beaten
Open the 14th normally opened valve 89), second pressure switch 54 (open the 15th normally opened valve 90) and (opening of third pressure switch 55
16th normally opened valve 91), monitor hydrogen buckling.It is still sampled from generator low spot flange-interface 5, is discharged into emptying pipeline
14, to detect hydrogen purity.
When generator red switch reaches 3000 revs/min of rated speed, higher-pressure region monitoring pipeline 10 and low-pressure area are monitored at this time
Pipeline 11 forms differential pressure, puts into differential pressure gauge 30 (opening the 5th normally opened valve 96 and the second normally opened valve 97) at this time and differential pressure becomes
Device 29 is sent (to open the first normally opened valve 86 and the 4th normally opened valve 87, close the first normal closed gate 88, monitor differential pressure.While from
The sampling of generator high point flange-interface 4 (closes the second normal closed gate 81, open the 13rd normally opened valve 84), and put into operation purity
Transmitter 31, humidity transmitter 44(open the 11st normally opened valve 108, the 12nd normally opened valve 109, close third normally close valve
106), gas is discharged into low-pressure area monitoring pipeline 11(and closes the 4th normal closed gate 102 door, opens the 18th normally opened valve 85), shape
At interior circulatory monitoring (adjustment first flowmeter 32 is 0.5SCFH), to be run in pressure.The oxygen transmitter 39(that puts into operation opens the 9th often
Valve opening door 83 and the tenth normally opened valve 94), for oxygen through pressure reducing valve, flow adjusts (adjustment second flowmeter 40 is 0.5SCFH) in hydrogen
After be discharged into evacuated tube road 14, for emptying measurement.
When equipment normal operation, the 6th normal closed gate 100 can be opened, chemical examination is sampled by sample tap 35,
Comparing is carried out with online table.
Generator inevitably forms hydrogen drops when operating normally, and needs to mend hydrogen, puts into flow indicator 28 at this time
Mass flowmenter 27 is monitored, it is controllable to guarantee that benefit hydrogen crosses range of flow.
57 on-line real time monitoring generator cooler return pipe of hydrogen display is leaked simultaneously, whether main fuel tank etc. leaks hydrogen.
Material is thus formed hydrogen population parameters to integrate on-line monitoring system.
3, the operation of generator outage gas displacement
When generator outage, differential pressure monitoring (opening the first normal closed gate 88) need to be exited, differential pressure gauge 30 is closed and (closes the 5th
Normally opened valve 96 and the second normally opened valve 97) and differential pressure transmitter 29 (the first normally opened valve 86 of closing and the 4th normally opened valve
87)。
It exits oxygen transmitter 39(and closes the 9th normally opened valve 83 and the tenth normally opened valve 94).
When hydrogen pressure, which drops to, can start carbon dioxide replacement hydrogen, (closed from generator high point flange-interface 4
It is normal to open the 5th normal closed gate 80 and the 4th for 13rd normally opened valve 84, the 18th normally opened valve 85 and the second normal closed gate 81
Valve closing door 102), isolation humidity transmitter 44(closes the 11st normally opened valve 108, the 12nd normally opened valve 109, opens third
Normal closed gate 106) and isolation from oxygen transmitter 39 (closing the 9th normally opened valve 83 and the tenth normally opened valve 94), investment starting is pure
Spend transmitter 31(and open the 4th normal closed gate 102, adjustment first flowmeter 32 is 0.5SCFH), it is seen by purity display 33
Density of hydrogen is examined, density of hydrogen is on a declining curve, and gas is discharged into emptying pipeline 14, until qualification.
When equipment starts air displacement carbon dioxide, (5 constant virtues is closed from the sampling of generator low spot flange-interface 5
Valve closing door 80 opens the second normal closed gate 81), isolation humidity transmitter 44(closes the 11st normally opened valve the 108, the 12nd often
Valve opening door 109, open third normal closed gate 106) and isolation from oxygen transmitter 39 (closing the 9th normally opened valve 83 and the tenth it is normally opened
Valve 94), investment starting purity transmitter 31(opens the 4th normal closed gate 102, and adjustment first flowmeter 32 is 0.5SCFH),
Air concentration is observed by purity display 33, observation air concentration is in rising trend, and gas is discharged into total emptying pipeline, Zhi Daohe
Lattice.
Hydrogen Vapor Pressure monitoring is exited, closes pressure gauge 56 (closing the 17th normally opened valve 92), pressure transmitter 34 (closes
Close the 8th normally opened valve 107), first pressure switch 53 (close the 14th normally opened valve 89), (closing the of second pressure switch 54
15 normally opened valves 90) and third pressure switch 55 (closing the 16th normally opened valve 91).
Close all valves other than the first normal closed gate 88.
Standard gas verification can be carried out to purity by the 9th normal closed gate 104 during generator maintenance, it is normally closed by the 8th
Valve 105 carries out standard gas verification to oxygen in hydrogen.
The hydrogen leakage monitor of leakage hydrogen display 57 is exited, the terminal valve of generator cooler return pipe is closed, main fuel tank is surveyed
The valve of point.
The present embodiment not makes any form of restriction shape of the invention, material, structure etc., all according to this hair
Bright technical spirit any simple modification, equivalent change and modification to the above embodiments, belong to the technology of the present invention side
The protection scope of case.
Claims (8)
1. generator hydrogen system hydrogen population parameter integrates on-line monitoring system, it is characterised in that: including cabinet, on the cabinet body of cabinet
Be provided with Power generator fan high pressure flange interface, Power generator fan low pressure port flange-interface, generator high point flange-interface,
Generator low spot flange-interface, tail gas emptying flange-interface, benefit hydrogen gas flange-interface and benefit hydrogen outlet flange connect
Mouthful, through terminal disk, higher-pressure region monitoring pipeline, low-pressure area monitoring pipeline, high point monitoring pipeline, low spot monitoring are provided in cabinet
Pipeline, emptying pipeline and benefit hydrogen pipeline；Higher-pressure region monitoring pipeline is connect with Power generator fan high pressure flange interface, low-pressure area monitoring
Pipeline is connect with Power generator fan low pressure port flange-interface, and high point monitoring pipeline is connect with generator high point flange-interface,
Low spot monitoring pipeline is connect with generator low spot flange-interface, and emptying pipeline is connect with tail gas emptying flange-interface, mends hydrogen
The two-port of pipeline is connect with benefit hydrogen gas flange-interface and benefit hydrogen outlet flange-interface respectively；
Power supply interface, hydrogen leak detection signal output interface, hydrogen sniffer probe input interface, hydrogen pressure are provided on through terminal disk
High remote alarm interface, hydrogen force down remote alarm interface, hydrogen presses through low remote alarm interface, generator Pressure monitoring interface, hydrogen humidity letter
Number interface, hydrogen purity signaling interface, oxygen signal interface and differential pressure signal interface in hydrogen.
2. generator hydrogen system hydrogen population parameter according to claim 1 integrates on-line monitoring system, it is characterised in that: mend
Mass flowmenter is provided on hydrogen pipeline, mass flowmenter is connected with flow indicator.
3. generator hydrogen system hydrogen population parameter according to claim 1 integrates on-line monitoring system, it is characterised in that: high
Differential pressure transmitter, differential pressure gauge and the first normal closed gate are parallel between pressure area monitoring pipeline and low-pressure area monitoring pipeline；Differential pressure becomes
Device is sent to connect by signal wire with through terminal disk；
The first normally opened valve and the second normally opened valve, the first normally opened valve and Power generator fan are provided on higher-pressure region monitoring pipeline
The distance of high pressure flange interface is less than the second normally opened valve at a distance from Power generator fan high pressure flange interface；
Be provided on low-pressure area monitoring pipeline the third normally opened valve being sequentially increased apart from Power generator fan low pressure port flange-interface,
4th normally opened valve and the 5th normally opened valve；
Differential pressure transmitter is between the second normally opened valve and the 5th normally opened valve, differential pressure gauge and the first normal closed gate and higher-pressure region
The tie point of monitoring pipeline is respectively positioned between the first normally opened valve and the second normally opened valve, differential pressure gauge and the first normal closed gate with it is low
The tie point of pressure area monitoring pipeline is respectively positioned between the 4th normally opened valve and the 5th normally opened valve.
4. generator hydrogen system hydrogen population parameter according to claim 3 integrates on-line monitoring system, it is characterised in that: row
The one end on blank pipe road is connect with tail gas emptying flange-interface, and low spot monitors one end and the generator low spot flange-interface of pipeline
Connection, the other end for emptying pipeline are connect with the other end of low spot monitoring pipeline；
Low spot monitors pipeline and evacuated tube road along generator low spot flange-interface to the direction of tail gas emptying flange-interface
It is disposed with the second normal closed gate, the 6th normally opened valve, filter, the 7th normally opened valve, third normal closed gate, purity pick-up
Device, first flowmeter and the 4th normal closed gate；Purity transmitter is connected with purity display, and low spot monitors normal in third on pipeline
Pressure transmitter and the 8th normally opened for controlling gas path on-off pressure transmitter is connected between valve closing door and purity transmitter
Valve, purity transmitter, purity display and pressure transmitter pass through signal wire and connect with through terminal disk；
One end of high point monitoring pipeline is connect with generator high point flange-interface, and the other end of high point monitoring pipeline is connected to
On low spot monitoring pipeline between second normal closed gate and the 6th normally opened valve, the 5th normally close valve is provided on high point monitoring pipeline
Door；
It is provided with sample tap between the 7th normally opened valve and third normal closed gate on low spot monitoring pipeline, is provided at sample tap
6th normal closed gate.
5. generator hydrogen system hydrogen population parameter according to claim 4 integrates on-line monitoring system, it is characterised in that: also
Including oxygen signal piping in hydrogen, one end of oxygen signal piping is connected between first flowmeter and the 4th normal closed gate in hydrogen, hydrogen
The other end of middle oxygen signal piping is connected between tail gas emptying flange-interface and the 4th normal closed gate, in hydrogen on oxygen signal piping
7th normal closed gate, second flowmeter, the 9th are disposed with often by the direction of first flowmeter to tail gas emptying flange-interface
Valve opening door, pressure reducer, third flowmeter, oxygen transmitter and the tenth normally opened valve；
Position of the oxygen signal piping between second flowmeter and the 9th normally opened valve and low spot monitoring pipeline are normal the 7th in hydrogen
Position connection between valve opening door and third normal closed gate；
It is provided with the first calibration mouth in hydrogen on oxygen signal piping between the 9th normally opened valve and pressure reducer, is set at the first calibration mouth
It is equipped with the 8th normal closed gate；
Oxygen transmitter connects aerobic display, and oxygen transmitter and oxygen display pass through signal wire and connect with through terminal disk.
6. generator hydrogen system hydrogen population parameter according to claim 5 integrates on-line monitoring system, it is characterised in that: the
Three normal closed gates are parallel with a humidity detection pipeline, are disposed with the 11st normally opened valve, humidity on humidity detection pipeline
Transmitter and the 12nd normally opened valve, humidity transmitter are connected with wetness display unit, and humidity transmitter and wetness display unit are logical
Signal wire is crossed to connect with through terminal disk.
7. generator hydrogen system hydrogen population parameter according to claim 5 integrates on-line monitoring system, it is characterised in that: also
Including calibrating pipeline, the one end for calibrating pipeline is connected to height between Power generator fan high pressure flange interface and the first normally opened valve
Pressure area monitor pipeline on, calibrate pipeline the other end be arranged the 9th normal closed gate, calibration pipeline respectively with the second normal closed gate and
High point monitoring pipeline and low spot between 6th normally opened valve monitor piping connection；Calibrate pipeline on higher-pressure region monitoring pipeline and
The 13rd normally opened valve is provided between low spot monitoring pipeline.
8. generator hydrogen system hydrogen population parameter according to claim 7 integrates on-line monitoring system, it is characterised in that: also
Including the pressure monitoring pipeline respectively with emptying pipeline and low-pressure area monitoring piping connection, pressure monitoring pipeline and emptying pipeline
Junction is between first flowmeter and the 4th normal closed gate, the junction position of pressure monitoring pipeline and low-pressure area monitoring pipeline
Between the 4th normally opened valve and third normally opened valve；First pressure monitoring bye-pass, second are parallel on pressure monitoring pipeline
Pressure monitoring bye-pass, third pressure monitoring bye-pass, the 4th pressure monitoring bye-pass and blowoff line, first pressure monitoring branch
First pressure switch and the 14th normally opened valve for controlling gas path on-off first pressure switch, the second pressure are provided on pipeline
Second pressure switch and the 15th normally open valve for controlling gas path on-off second pressure switch are provided on power monitoring bye-pass
Door, be provided on third pressure monitoring bye-pass third pressure switch and for controlling gas path on-off third pressure switch the tenth
Six normally opened valves, be provided on the 4th pressure monitoring bye-pass pressure gauge and for controlling gas path on-off pressure gauge the 17th often
Valve opening door is provided with the tenth normal closed gate on blowoff line；Empty one section of pressure between pipeline and low-pressure area monitoring piping connection
The 18th normally opened valve is provided on power monitoring pipeline；
First pressure switch, second pressure switch and third pressure switch pass through signal wire and connect with through terminal disk.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811631633.7A CN109489734A (en) | 2018-12-29 | 2018-12-29 | Generator hydrogen system hydrogen population parameter integrates on-line monitoring system |
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|---|---|---|---|
| CN201811631633.7A CN109489734A (en) | 2018-12-29 | 2018-12-29 | Generator hydrogen system hydrogen population parameter integrates on-line monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803638A (en) * | 2021-07-30 | 2021-12-17 | 华电电力科学研究院有限公司 | Intelligent generator hydrogen cooling system and control method |
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2018
- 2018-12-29 CN CN201811631633.7A patent/CN109489734A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803638A (en) * | 2021-07-30 | 2021-12-17 | 华电电力科学研究院有限公司 | Intelligent generator hydrogen cooling system and control method |
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