CN106679747B - A kind of on-line testing method of Turbo-generator Set boiler inlet feedwater flow - Google Patents
A kind of on-line testing method of Turbo-generator Set boiler inlet feedwater flow Download PDFInfo
- Publication number
- CN106679747B CN106679747B CN201611184482.6A CN201611184482A CN106679747B CN 106679747 B CN106679747 B CN 106679747B CN 201611184482 A CN201611184482 A CN 201611184482A CN 106679747 B CN106679747 B CN 106679747B
- Authority
- CN
- China
- Prior art keywords
- dcs
- flow
- oxygen
- eliminating device
- feedwater flow
- Prior art date
- 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.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 158
- 238000005259 measurement Methods 0.000 claims abstract description 131
- 238000012795 verification Methods 0.000 claims abstract description 70
- 238000003303 reheating Methods 0.000 claims abstract description 53
- 238000012937 correction Methods 0.000 claims abstract description 14
- 238000013021 overheating Methods 0.000 claims abstract description 6
- 241001269238 Data Species 0.000 claims description 16
- 238000013461 design Methods 0.000 claims description 13
- 230000002209 hydrophobic effect Effects 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims 3
- 238000000034 method Methods 0.000 description 5
- 238000011088 calibration curve Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The present invention provides a kind of on-line testing methods of Turbo-generator Set boiler inlet feedwater flow, include the following steps：High temperature ultrasonic wave flowmeter measurement data is verified, the flow verification curve of high temperature ultrasonic wave flowmeter is obtained；Oxygen-eliminating device outlet feedwater flow check and correction in oxygen-eliminating device outlet feedwater flow data, with Turbo-generator Set DCS is calculated, the flow verification curve of oxygen-eliminating device outlet feedwater flow in DCS is obtained；It measures flow in boiler overheating attemperation water flow and boiler reheating attemperation water flow, with respective Turbo-generator Set DCS to proofread, obtains the checking curve of respective DCS attemperation water flows；Boiler inlet feedwater flow in normal operation is calculated, is proofreaded with the boiler inlet feedwater flow shown in DCS, obtains DCS boiler inlet feedwater flow checking curves；By the DCS boiler inlets feedwater flow and DCS boiler inlet feedwater flow checking curves of normal operation, boiler inlet feedwater flow is calculated.The present invention has the advantages that accuracy is high and it is stable to measure.
Description
Technical field
Present invention relates particularly to a kind of on-line testing methods of Turbo-generator Set boiler inlet feedwater flow.
Background technology
In Turbo-generator Set normal operation, Turbo-generator Set and steam turbine performance monitoring generally use feedwater flow are
Standard flow.But power plant's feedwater flow measuring device is in high temperature and pressure measuring state, its accuracy is difficult after long-play
To ensure；Although condensing water flow measuring device measuring condition is relatively preferable, feedwater flow is calculated by condensing water flow
In the process, it is also influenced by multinomial other measurement parameters；There is also condensing water flow measuring devices for part Turbo-generator Set
The poor problem of accuracy after long-play；The accuracy of water supply standard flow can not carry out school by method measured directly
It tests.
Currently, this important parameter of water supply standard flow generally lacks online verification means in steam turbine performance monitoring,
Ensure its accuracy.It is thus determined that a kind of on-line testing method of Turbo-generator Set boiler inlet feedwater flow, to live accurate
It is significant really to measure feedwater flow.
Invention content
The purpose of the present invention is to provide a kind of on-line testing method of Turbo-generator Set boiler inlet feedwater flow, solutions
The on-line testing problem of benchmark feedwater flow in Turbo-generator Set of having determined normal operation can be accurate determining thermal loss of steam turbine
The calculating of rate index and power plant's performance driving economy index provides accurate data, and provides foundation for the energy-saving of power plant.
The purpose of the present invention is achieved through the following technical solutions：
A kind of on-line testing method of Turbo-generator Set boiler inlet feedwater flow comprising following steps：
Step 1：On the A Turbo-generator Sets of ASME flow nozzles are installed, with the ASME flow nozzles through verification,
Using oxygen-eliminating device incoming condensing water flow as object, high temperature ultrasonic wave flowmeter measurement data is verified；When verification, oxygen-eliminating device
Incoming condensing water changes in flow rate should cover 50% to 100% load range of Turbo-generator Set operation, every 10% load variations
For a verification operating mode, total 6 verifications operating mode is drawn out according to the measurement error under each oxygen-eliminating device incoming condensing water flow
Checking curve.It is specific as follows：
6 >=i >=1 is set, under i-th of operating load, makes oxygen-eliminating device incoming condensing water flow keep stablizing, between 20s
Every record data, 20 minute datas are recorded, calculate ASME flow nozzles measurement data and high temperature ultrasonic wave flowmeter measurement data
Average value, high temperature ultrasonic wave flowmeter measurement error is expressed as：
△FiDI=FiDI ASME-FiDI US (1)
In formula (1), FiDI ASMEFor the average value of ASME flow nozzle measurement data, unit t/h,
FiDI USFor the average value of high temperature ultrasonic wave flowmeter measurement data, unit t/h,
△FiDIFor high temperature ultrasonic wave flowmeter measurement error, unit t/h；
According to the average value F for the high temperature ultrasonic wave flowmeter measurement data that 6 verification operating modes obtainiDI USWith high temperature ultrasonic wave
Flowmeter measures error delta FiDI, draw the high temperature ultrasonic wave current under oxygen-eliminating device incoming condensing water caliber and condensed water parameter state
Gauge checking curve；
Step 2：(1) oxygen-eliminating device outlet feedwater flow WdoutCalculating
In the B Turbo-generator Sets for not installing ASME flow nozzles, using the high temperature ultrasonic wave flowmeter of verification to height
The hydrophobic flow of oxygen-eliminating device is added to measure；Oxygen-eliminating device incoming condensing water flow is surveyed using the high temperature ultrasonic wave flowmeter of verification
Amount；In conjunction with formula (2), formula (3) and formula (4), each oxygen-eliminating device verified under operating mode is calculated into steam flow amount W5And it removes
Oxygen device exports feedwater flow Wdout；
Wdout×(hfo5-hfi5)+Wdlevel×(hfo5-hfi5)=W5×(h5-hfi5)+W5d×(h6d-hfi5) (2)
Wdlevel+Wdout=Wc+(W5+W5d) (3)
Wc=Wcm+ΔWc (4)
In formula (2), formula (3) and formula (4), WdoutFor oxygen-eliminating device export feedwater flow, unit t/h,
WcFor oxygen-eliminating device incoming condensing water flow exact value, unit t/h,
WcmFor oxygen-eliminating device incoming condensing water flow measured value, unit t/h,
ΔWcFor oxygen-eliminating device incoming condensing water flow measurement error, unit t/h,
W5dThe hydrophobic flow of oxygen-eliminating device is added to for height, high temperature ultrasonic wave flowmeter surveys to obtain, unit t/h,
WdlevelChange equivalent flow for deaerator level, is carried out according to deaerator level variation and oxygen-eliminating device dimension data
It is calculated, unit t/h,
hfi5For oxygen-eliminating device incoming condensing water enthalpy, it is calculated according to oxygen-eliminating device incoming condensing water pressure, temperature parameter,
Unit is kJ/kg,
h6dThe hydrophobic enthalpy of oxygen-eliminating device is added to for height, the hydrophobic pressure of oxygen-eliminating device is added to according to height, temperature parameter is calculated, list
Position is kJ/kg,
h5For oxygen-eliminating device steam admission enthalpy value, according to oxygen-eliminating device into vapour corresponds to pressure of extracted steam from turbine, temperature parameter is calculated,
Unit is kJ/kg,
hfo5Enthalpy of Feed Water is exported for oxygen-eliminating device, exporting feed temperature parameter according to oxygen-eliminating device is calculated, unit kJ/
Kg,
WdoutFor oxygen-eliminating device export feedwater flow, unit t/h,
W5It is oxygen-eliminating device into steam flow amount, unit t/h.
(2) drafting of oxygen-eliminating device outlet DCS feedwater flow checking curves
By the oxygen-eliminating device being calculated outlet feedwater flow WdoutWater supply is exported with oxygen-eliminating device in B Turbo-generator Sets DCS
Flow is proofreaded, when check and correction oxygen-eliminating device outlet feedwater flow variation should cover 50% to 100% load of Turbo-generator Set operation
Range, every 10% load variations are a verification operating mode, amount to 6 verification operating modes；
6 >=i >=1 is set, under i-th of operating load, data is recorded with the intervals 20s, record 20 minute datas, calculated public
The average value of each parameter in formula (2), formula (3) and formula (4), and calculate the meter of oxygen-eliminating device outlet feedwater flow under this operating mode
Calculation value Wdout, i.e. the exact value F of oxygen-eliminating device outlet feedwater flow under i-th of operating loadiDO cal；
Oxygen-eliminating device outlet DCS feedwater flow measurement data average values are denoted as FiDO DCS, oxygen-eliminating device outlet DCS feedwater flows survey
Measure error delta FiDO DCSIt is calculated by formula (5)：
△FiDO DCS=FiDO cal-FiDO DCS (5)
In formula (5), △ FiDO DCSDCS feedwater flow measurement errors are exported for oxygen-eliminating device under i-th of operating load, unit is
T/h,
FiDO calFor under i-th of operating load oxygen-eliminating device export feedwater flow exact value, unit t/h,
FiDO DCSDCS feedwater flow measurement data average values, unit t/h are exported for oxygen-eliminating device under i-th of operating load；
The oxygen-eliminating device outlet DCS feedwater flow measurement data average values F obtained according to 6 verification operating modesiDO DCSAnd oxygen-eliminating device
Export DCS feedwater flow measurement error △ FiDO DCSDrafting obtains oxygen-eliminating device outlet DCS feedwater flow checking curves；
(3) in normal operation B Turbo-generator Sets oxygen-eliminating device outlet feedwater flow measured value calculating
DCS feedwater flow measured values are exported according to oxygen-eliminating device in normal operation, what is obtained in two (2) through the above steps removes
Oxygen device outlet DCS feedwater flow checking curves obtain the measurement error value △ F under corresponding DCS feedwater flow measured valuesDO DCS, and root
Oxygen-eliminating device outlet feedwater flow exact value F is calculated according to formula (6)DO acc：
FDO acc=FDO DCS+△FDO DCS (6)
In formula (6), FDO accFor in normal operation oxygen-eliminating device export feedwater flow exact value, unit t/h,
△FDO DCSThe measurement error under DCS feedwater flow measured values is exported for corresponding oxygen-eliminating device, is given by oxygen-eliminating device outlet DCS
Water flow checking curve is calculated, unit t/h,
FDO DCSDCS feedwater flow measured values, unit t/h are exported for oxygen-eliminating device in normal operation；
Step 3：(1) DCS overheats the drafting of attemperation water flow checking curve
In the B Turbo-generator Sets for not installing ASME flow nozzles, with high temperature ultrasonic wave flowmeter, boiler overheating is subtracted
Warm water flow measurement, and proofreaded with data on flows in B Turbo-generator Sets DCS；When check and correction, overheat attemperation water flow variation should be covered
0% to 100% range of lid design attemperation water flow, every 20% design discharge variation are a verification operating mode, amount to 6 verifications
Operating mode；
6 >=i >=1 is set, under i-th of operating load, makes overheat attemperation water flow keep stablizing, is recorded with the intervals 10s
Data record 2 minute datas, calculate DCS overheat attemperation water flow measurement data FiDS DCSAnd high temperature ultrasonic wave flowmeter measures number
According to average value FiDS US, DCS is calculated according to formula (7) and overheats attemperation water flow measurement error：
△FiDS=FiDS US-FiDS DCS (7)
In formula (7), FiDS DCSFor under i-th of operating load DCS overheat attemperation water flow measurement data, unit t/h,
FiDS USFor the average value of high temperature ultrasonic wave flowmeter measurement data under i-th of operating load, unit t/h,
△FiDSFor under i-th of operating load DCS overheat attemperation water flow measurement error, unit t/h,
The DCS overheat attemperation water flow measurement data F obtained according to 6 verification operating modesiDS DCSDesuperheat flow is overheated with DCS
Measurement error delta FiDS, draw and obtain DCS overheat attemperation water flow checking curves；
(2) drafting of DCS reheating attemperation water flow checking curve
In the B Turbo-generator Sets for not installing ASME flow nozzles, with high temperature ultrasonic wave flowmeter, boiler reheating is subtracted
Warm water flow measurement, and proofreaded with data on flows in B Turbo-generator Sets DCS；When check and correction, the variation of reheating attemperation water flow should be covered
0% to 100% range of lid design attemperation water flow, every 20% design discharge variation are a verification operating mode, amount to 6 verifications
Operating mode；
6 >=i >=1 is set, under i-th of operating load, makes reheating attemperation water flow keep stablizing, is recorded with the intervals 10s
Data record 2 minute datas, calculate DCS reheating attemperation water flow measurement data FiDR DCSAnd high temperature ultrasonic wave flowmeter measures number
According to average value FiDR US, DCS reheating attemperation water flow measurement errors are calculated according to formula (8)：
△FiDR=FiDR US-FiDR DCS (8)
In formula (8), FiDR DCSFor DCS reheating attemperation water flow measurement data under i-th of operating load, unit t/h,
FiDR USFor the average value of reheating attemperation water flow measurement data under i-th of operating load, unit t/h,
△FiDRFor DCS reheating attemperation water flow measurement error under i-th of operating load, unit t/h,
The DCS reheating attemperation water flow measurement data F that operating mode obtains is measured according to 6iDR DCSWith DCS reheating desuperheat flows
Measurement error delta FiDR, draw and obtain DCS reheating attemperation water flow checking curves；
Step 4：Subtracted according to oxygen-eliminating device outlet feedwater flow, boiler overheating attemperation water flow and the boiler reheating after correction
Warm water data on flows calculates boiler inlet feedwater flow in normal operation, and the boiler inlet feedwater flow to being shown in DCS
Correction obtains DCS boiler inlet feedwater flow calibration curves under different load operating mode；According to the DCS boiler inlets of normal operation
Feedwater flow obtains accurate boiler inlet feedwater flow value after calibrated curve data is corrected；
(1) calculating of boiler inlet feedwater flow check value
In the B Turbo-generator Sets for not installing ASME flow nozzle normal operations, it is calculated normally according to formula (9)
Boiler inlet feedwater flow exact value F in operationBI CAL：
FBI CAL=FDO acc-(FDS DCS+△FDS)-(FDR DCS+△FDS) (9)
In formula (9), △ FDSTo overheat attemperation water flow measurement error value, attemperation water flow checking curve is overheated according to DCS
Interpolation calculation obtains, unit t/h,
△FDRFor reheating attemperation water flow measurement error value, according to DCS reheating attemperation water flow checking curve interpolation calculations
It obtains, unit t/h,
FDS DCSTo overheat attemperation water flow in normal operation, unit t/h,
FDR DCSFor reheating attemperation water flow in normal operation, unit t/h,
FDO accFeedwater flow exact value, unit t/h are exported for oxygen-eliminating device in normal operation；
(2) in DCS boiler inlet feedwater flow verification
6 steady working condition for choosing B Turbo-generator Set normal operations are verified, boiler inlet feedwater flow when verification
Variation should cover 50% to 100% range of Turbo-generator Set load, and every 10% Design cooling load variation is a verification operating mode,
Total 6 verifications operating mode；
6 >=i >=1 is set, under i-th of operating load, it includes the guarantors such as load, water supply and attemperation water flow to make unit parameter
It is fixed to keep steady, and records data with the intervals 10s, records 30 minute datas, calculates DCS boiler inlet feedwater flow measurement data average values
FiBI DCSAnd the final exact value F of boiler inlet feedwater flowiBI CAL；The final exact value F of boiler inlet feedwater flowiBI CALMeter
Used oxygen-eliminating device exports feedwater flow when calculation, overheats attemperation water flow, and reheating attemperation water flow takes under i-th of operating mode
Corresponding DCS statistical averages；Boiler inlet feedwater flow under i-th of operating load is calculated according to formula (10) and measures mistake
Difference；
△FiBI=FiBI CAL-FiBI DCS (10)
In formula (10), △ FiBIFor boiler inlet feedwater flow measurement error under i-th of operating load, unit t/h,
FiBI CALFor the final exact value of boiler inlet feedwater flow under i-th of operating load, unit t/h,
FiBI DCSFor boiler inlet feedwater flow measurement data average value under i-th of operating load, unit t/h,
The DCS boiler inlet feedwater flow measurement data average values F that operating mode obtains is measured according to 6iBI DCSAnd boiler inlet
Feedwater flow measurement error △ FiBI, draw and obtain DCS boiler inlet feedwater flow checking curves；
(3) in normal operation boiler inlet feedwater flow exact value calculating
According to the DCS boiler inlet feedwater flow checking curves obtained in above-mentioned steps, interpolation calculation obtains normal operation
Middle DCS boiler inlets feedwater flow FBI DCSCorresponding flow error value △ FBI；
The exact value of boiler inlet feedwater flow in normal operation is calculated according to formula (11)：
FBI ACC=FBI DCS+△FBI (11)
In formula (11), FBI DCSFor DCS boiler inlets feedwater flow in normal operation, unit t/h,
FBI ACCFor boiler inlet feedwater flow exact value in normal operation, unit t/h.
The present invention has following good effect：
(1) on-line testing method using the present invention can not only verify high temperature ultrasonic wave flowmeter measured value,
And provide calibration curve；And normal operation Turbo-generator Set can be removed according to the high temperature ultrasonic wave flowmeter after calibration
Oxygen device exports feedwater flow and boiler inlet feedwater flow carries out on-line testing, in may finally testing steam turbine traditional performance
Water supply standard flow provide verification means and method, and then for normal operation Turbo-generator Set thermal loss of steam turbine rate, coal
The online accurate calculating of consumption rate index provides strong support；
(2) it solves the problems, such as the on-line testing of benchmark feedwater flow in Turbo-generator Set normal operation, can be accurate
It determines that the calculating of thermal loss of steam turbine rate index and power plant's performance driving economy index provides accurate data, and is the energy-saving of power plant
Foundation is provided；
(3) overcome part Turbo-generator Set there is also accuracy after condensing water flow measuring device long-play compared with
The problem of difference has the advantages that accuracy is high, it is stable and convenient to measure.
Description of the drawings
Fig. 1 is high temperature ultrasonic wave flowmeter checking curve；
Fig. 2 is that DCS oxygen-eliminating devices export feedwater flow checking curve；
Fig. 3 is that DCS overheats attemperation water flow checking curve；
Fig. 4 is DCS reheating attemperation water flow checking curves；
Fig. 5 is DCS boiler inlet feedwater flow checking curves.
Specific implementation mode
With reference to specific embodiments and the drawings 1-5, the present invention will be further explained, although with reference to implementation
Example describes the invention in detail, it will be understood by those of ordinary skill in the art that, it is any not depart from the technology of the present invention side
The spirit and scope of case, are modified or replaced equivalently technical scheme of the present invention, should all cover the protection in the present invention
In range.
Embodiment
A kind of on-line testing method of Turbo-generator Set boiler inlet feedwater flow comprising following steps：
Step 1：ASME flow nozzles are being installed, rated capacity is in the A Turbo-generator Sets of 300MW, with through verification
ASME flow nozzles school is carried out to high temperature ultrasonic wave flowmeter measurement data using oxygen-eliminating device incoming condensing water flow as object
It tests；When verification, oxygen-eliminating device incoming condensing water changes in flow rate should cover 50% to 100% load model of Turbo-generator Set operation
It encloses, every 10% load variations are a verification operating mode, amount to 6 verification operating modes, and the statistical average of each Test Cycle is shown in Table
1：
1 oxygen-eliminating device incoming condensing water flow verification measurement data of table
6 >=i >=1 is set, under i-th of operating load, makes oxygen-eliminating device incoming condensing water flow keep stablizing, between 20s
Every record data, 20 minute datas are recorded, calculate ASME flow nozzles measurement data and high temperature ultrasonic wave flowmeter measurement data
Average value, and high temperature ultrasonic wave flowmeter measurement error is calculated by formula (1), the results are shown in Table 2；
△FiDI=FiDI ASME-FiDI US (1)
In formula (1), FiDI ASMEFor the average value of ASME flow nozzle measurement data, unit t/h,
FiDI USFor the average value of high temperature ultrasonic wave flowmeter measurement data, unit t/h,
△FiDIFor high temperature ultrasonic wave flowmeter measurement error, unit t/h；
2 high temperature ultrasonic wave flowmeter measurement error data of table
According to the average value F of the high temperature ultrasonic wave flowmeter measurement data under 6 verification operating modes in table 2iDI USAnd by formula
(1) the high temperature ultrasonic wave flowmeter measurement error △ F being calculatediDI, draw and obtain oxygen-eliminating device incoming condensing water caliber and condensation
High temperature ultrasonic wave flowmeter checking curve under water parameter state, is shown in Fig. 1；
Step 2：(1) oxygen-eliminating device outlet feedwater flow WdoutCalculating
ASME flow nozzles be not installed, rated capacity is to choose stable 100% in the B Turbo-generator Sets of 300MW
Load operating region adds to the hydrophobic flow of oxygen-eliminating device to height using the high temperature ultrasonic wave flowmeter of verification and measures；Oxygen-eliminating device
Incoming condensing water flow is measured using the high temperature ultrasonic wave flowmeter of verification；The oxygen-eliminating device measured under this operating condition is related
Parameter is as shown in table 3 below：
Measurement parameter under 3 100% load operation operating mode of table
In conjunction with formula (2), formula (3) and formula (4), each oxygen-eliminating device verified under operating mode is calculated into steam flow amount W5
And oxygen-eliminating device outlet feedwater flow Wdout；
Wdout×(hfo5-hfi5)+Wdlevel×(hfo5-hfi5)=W5×(h5-hfi5)+W5d×(h6d-hfi5) (2)
Wdlevel+Wdout=Wc+(W5+W5d) (3)
Wc=Wcm+ΔWc (4)
In formula (2), formula (3) and formula (4), WdoutFor oxygen-eliminating device export feedwater flow, unit t/h,
WcFor oxygen-eliminating device incoming condensing water flow exact value, unit t/h,
ΔWcFor oxygen-eliminating device incoming condensing water flow measurement error, the checking curve data interpolating meter obtained according to step 1
It obtains, unit t/h,
WdoutFor oxygen-eliminating device export feedwater flow, unit t/h,
W5It is oxygen-eliminating device into steam flow amount, unit t/h；
Result of calculation is as shown in table 4 below：
Result of calculation under 4 100% load operation operating mode of table
| Calculate data | Symbol | Unit | Numerical value |
| Condensed water correction value | ΔWc | t/h | 5.25 |
| Oxygen-eliminating device incoming condensing water flow exact value | Wc | t/h | 699.95 |
| Oxygen-eliminating device is into steam flow amount | W5 | t/h | 29.77 |
| Oxygen-eliminating device exports feedwater flow | Wdout | t/h | 897.24 |
(2) drafting of oxygen-eliminating device outlet DCS feedwater flow checking curves
By the oxygen-eliminating device being calculated outlet feedwater flow WdoutWater supply is exported with oxygen-eliminating device in B Turbo-generator Sets DCS
Flow is proofreaded, when check and correction oxygen-eliminating device outlet feedwater flow variation should cover 50% to 100% load of Turbo-generator Set operation
Range, every 10% load variations are a verification operating mode, amount to 6 verification operating modes；
6 >=i >=1 is set, under i-th of operating load, makes oxygen-eliminating device outlet feedwater flow keep stablizing, with the intervals 20s
Data are recorded, 20 minute datas are recorded, the average value (being shown in Table 5) of each parameter in calculation formula (2), formula (3) and formula (4),
And formula (5) is substituted into, the exact value F of oxygen-eliminating device outlet feedwater flow under i-th of operating load is finally calculatediDO cal, that is, remove
Oxygen device exports the exact value F of feedwater flowiDO calEqual to the calculated value W that oxygen-eliminating device under this operating mode exports feedwater flowdout, 100%
Calculated examples under load condition are shown in that example in step 2 (1), the calculating process of other load conditions are similar；
Oxygen-eliminating device outlet DCS feedwater flow measurement data average values are denoted as FiDO DCS, oxygen-eliminating device outlet DCS feedwater flows survey
Measure error delta FiDO DCSIt is calculated by formula (5)：
△FiDO DCS=FiDO cal-FiDO DCS (5)
In formula (5), △ FiDO DCSDCS feedwater flow measurement errors are exported for oxygen-eliminating device under i-th of operating load, unit is
T/h,
FiDO calFor under i-th of operating load oxygen-eliminating device export feedwater flow exact value, unit t/h,
FiDO DCSDCS feedwater flow measurement data average values, unit t/h are exported for oxygen-eliminating device under i-th of operating load；
The oxygen-eliminating device outlet DCS feedwater flow measurement errors △ under 6 verification operating modes is calculated according to formula (5)
FiDO DCS(being shown in Table 6), and export DCS feedwater flow measurement data average values F with oxygen-eliminating deviceiDO DCSIt draws together and obtains DCS deoxygenations
Device exports feedwater flow checking curve (see Fig. 2)；
5 oxygen-eliminating device of table exports feedwater flow verification data
6 oxygen-eliminating device of table exports feedwater flow verification data
(3) in normal operation B Turbo-generator Sets oxygen-eliminating device outlet feedwater flow measured value calculating
It is assumed that oxygen-eliminating device outlet DCS feedwater flow measured values are 736.45t/h under certain operating load in normal operation, pass through
The oxygen-eliminating device outlet DCS feedwater flow checking curves obtained in above-mentioned steps two (2) obtain under corresponding DCS feedwater flow measured values
Measurement error value △ FDO DCSFor 5.609t/h；
FDO acc=FDO DCS+△FDO DCS (6)
In formula (6), FDO accFor in normal operation oxygen-eliminating device export feedwater flow exact value, unit t/h,
△FDO DCSThe measurement error under DCS feedwater flow measured values is exported for corresponding oxygen-eliminating device, is given by oxygen-eliminating device outlet DCS
Water flow checking curve is calculated, unit t/h,
FDO DCSDCS feedwater flow measured values, unit t/h are exported for oxygen-eliminating device in normal operation；
The oxygen-eliminating device outlet accurate measured value F of feedwater flow is calculated according to formula (6)DO accFor 742.059t/h；
Step 3：(1) DCS overheats the drafting of attemperation water flow checking curve
In the B Turbo-generator Sets for not installing ASME flow nozzles, with high temperature ultrasonic wave flowmeter, boiler overheating is subtracted
Warm water flow measurement, measurement data are as shown in table 7；
Table 7 overheats attemperation water flow verification data
Data on flows in 7 data of table and B Turbo-generator Sets DCS is proofreaded；When check and correction, overheat attemperation water flow variation is answered
0% to 100% range of covering design attemperation water flow, every 20% design discharge variation are a verification operating mode, amount to 6 schools
Test operating mode；
6 >=i >=1 is set, under i-th of operating load, makes overheat attemperation water flow keep stablizing, is recorded with the intervals 10s
Data record 2 minute datas, and calculating DCS according to formula (7) overheats attemperation water flow measurement error, and specific result of calculation is shown in Table
8；
△FiDS=FiDS US-FiDS DCS (7)
In formula (7), FiDS DCSFor under i-th of operating load DCS overheat attemperation water flow measurement data, unit t/h,
FiDS USFor the average value of high temperature ultrasonic wave flowmeter measurement data under i-th of operating load, unit t/h,
△FiDSFor under i-th of operating load DCS overheat attemperation water flow measurement error, unit t/h,
Table 8 overheats attemperation water flow verification data
The DCS overheat attemperation water flow measurement data F obtained according to 6 verification operating modesiDS DCSDesuperheat flow is overheated with DCS
Measurement error delta FiDS, draw and obtain DCS overheat attemperation water flow checking curves (see Fig. 3)；
(2) drafting of DCS reheating attemperation water flow checking curve
In the B Turbo-generator Sets for not installing ASME flow nozzles, with high temperature ultrasonic wave flowmeter, boiler reheating is subtracted
Warm water flow measurement, and proofreaded with data on flows in B Turbo-generator Sets DCS；When check and correction, the variation of reheating attemperation water flow should be covered
0% to 100% range of lid design attemperation water flow, every 20% design discharge variation are a verification operating mode, amount to 6 verifications
Operating mode；
6 >=i >=1 is set, under i-th of operating load, makes reheating attemperation water flow keep stablizing, is recorded with the intervals 10s
Data record 2 minute datas, calculate DCS reheating attemperation water flow measurement data FiDR DCSAnd high temperature ultrasonic wave flowmeter measures number
According to average value FiDR US, DCS reheating attemperation water flow measurement error △ F are calculated according to formula (8)iDR：
△FiDR=FiDR US-FiDR DCS (8)
In formula (8), FiDR DCSFor DCS reheating attemperation water flow measurement data under i-th of operating load, unit t/h,
FiDR USFor the average value of reheating attemperation water flow measurement data under i-th of operating load, unit t/h,
△FiDRFor DCS reheating attemperation water flow measurement error under i-th of operating load, unit t/h,
The DCS reheating attemperation water flow measurement data and high temperature ultrasonic wave flowmeter measurement data such as table 9 of 6 measurement operating modes
It is shown；The DCS reheating attemperation water flow measurement error data being calculated are as shown in table 10；According to FiDR DCSWith △ FiDR, draw
Obtain DCS reheating attemperation water flow checking curves (see Fig. 4)；
9 reheating attemperation water flow verification data of table
10 reheating attemperation water flow verification data of table
Step 4：Subtracted according to oxygen-eliminating device outlet feedwater flow, boiler overheating attemperation water flow and the boiler reheating after correction
Warm water flow calculates boiler inlet feedwater flow in normal operation, and the boiler inlet feedwater flow school to being shown in DCS
Just, DCS boiler inlet feedwater flow calibration curves under different load operating mode are obtained；It is given according to the DCS boiler inlets of normal operation
Water flow obtains accurate boiler inlet feedwater flow value after calibrated curve data is corrected；
(1) calculating of boiler inlet feedwater flow exact value
In the B Turbo-generator Sets for not installing ASME flow nozzle normal operations, it is calculated normally according to formula (9)
Boiler inlet feedwater flow exact value F under any operating mode in operationBI CAL：
FBI CAL=FDO acc-(FDS DCS+△FDS)-(FDR DCS+△FDR) (9)
FDO accFeedwater flow check value, unit t/h are exported for oxygen-eliminating device；
FDS DCSAttemperation water flow measured value, unit t/h are overheated for DCS；
FDR DCSFor DCS reheating attemperation water flow measured values, unit t/h；
△FDSAttemperation water flow measurement error value, unit t/h are overheated for DCS；
△FDRFor DCS reheating attemperation water flow measurement error values, unit t/h；
It is assumed that oxygen-eliminating device exports feedwater flow check value F under certain operating mode in normal operationDO accFor 742.06t/h；At this point,
It is 83.56t/h that attemperation water flow measured value is overheated in DCS, and DCS reheating attemperation water flow measured values are 0t/h；Interpolation according to fig. 3
Corresponding overheat attemperation water flow measurement error value △ F are calculatedDSFor 0.681t/h；It is corresponded to according to Fig. 4 interpolation calculations
Reheating attemperation water flow measurement error value △ FDRFor 0t/h；
Boiler inlet feedwater flow check value F under this operating status then can be calculated according to formula (9)BI CALFor
657.82t/h。
(2) in DCS boiler inlet feedwater flow verification
6 steady working condition for choosing B Turbo-generator Set normal operations are verified, boiler inlet feedwater flow when verification
Variation should cover 50% to 100% range of Turbo-generator Set load, and every 10% Design cooling load variation is a verification operating mode,
Total 6 verifications operating mode, each data verified under operating mode are shown in Table 11；
11 boiler inlet feedwater flow verification data of table
6 >=i >=1 is set, under i-th of operating load, it includes the guarantors such as load, water supply and attemperation water flow to make unit parameter
It is fixed to keep steady, and records data with the intervals 10s, records 30 minute datas, calculates DCS boiler inlet feedwater flow measurement data average values
FiBI DCSAnd the final exact value F of boiler inlet feedwater flowiBI CAL；The final exact value F of boiler inlet feedwater flowiBI CALMeter
Used oxygen-eliminating device exports feedwater flow when calculation, overheats attemperation water flow, and reheating attemperation water flow takes under i-th of operating mode
Corresponding DCS statistical averages；The final exact value F of boiler inlet feedwater flowiBI CALCalculating process can be found in step 4 (1)
Calculated examples；
△FiBI=FiBI CAL-FiBI DCS (10)
In formula (10), △ FiBIFor boiler inlet feedwater flow measurement error under i-th of operating load, unit t/h,
FiBI CALFor the final exact value of boiler inlet feedwater flow under i-th of operating load, unit t/h,
FiBI DCSFor boiler inlet feedwater flow measurement data average value under i-th of operating load, unit t/h,
Boiler inlet feedwater flow measurement error △ F can be obtained according to formula (10)iBIData, as shown in table 12；
12 DCS boiler inlet feedwater flow verification datas of table
The DCS boiler inlet feedwater flow measurement data average values F that operating mode obtains is measured according to 6iBI DCSAnd boiler inlet
Feedwater flow measurement error △ FiBI, draw and obtain DCS boiler inlet feedwater flow checking curves, as shown in Figure 5；
(3) in normal operation boiler inlet feedwater flow exact value calculating
It is assumed that certain unit, rated capacity 300MW, oxygen-eliminating device entrance do not install ASME flow nozzles, DCS boiler inlet water supply
Flow has been subjected to verification；In normal operation under certain operating status DCS boiler inlets feedwater flow show value FBI DCSFor
853.27t/h；Corresponding DCS boiler inlets feedwater flow measurement error value △ F are obtained according to Fig. 5 interpolationBIFor 7.584t/h；
FBI ACC=FBI DCS+△FBI (11)
In formula (11), FBI DCSFor DCS boiler inlets feedwater flow in normal operation, it is worth for 853.27t/h,
FBI ACCFor boiler inlet feedwater flow exact value in normal operation, unit t/h；
Boiler inlet feedwater flow exact value F under this operating status can be calculated according to formula (11)BI ACCFor
860.854t/h。
Claims (1)
1. a kind of on-line testing method of Turbo-generator Set boiler inlet feedwater flow, which is characterized in that it includes following step
Suddenly：
Step 1：On being equipped with the A Turbo-generator Sets of ASME flow nozzles, with the ASME flow nozzles through verification, to remove
Oxygen device incoming condensing water flow is object, is verified to high temperature ultrasonic wave flowmeter measurement data；When verification, oxygen-eliminating device import
Condensing water flow variation should cover 50% to 100% load range of Turbo-generator Set operation, and every 10% load variations are one
A verification operating mode amounts to 6 verification operating modes, specific as follows：
6 >=i >=1 is set, under i-th of operating load, data is recorded with the intervals 20s, record 20 minute datas, calculate ASME streams
The average value of flow nozzle measurement data and high temperature ultrasonic wave flowmeter measurement data, high temperature ultrasonic wave flowmeter measurement error indicate
For：
△FiDI=FiDI ASME-FiDI US (1)
In formula (1), FiDI ASMEFor the average value of ASME flow nozzle measurement data, unit t/h,
FiDI USFor the average value of high temperature ultrasonic wave flowmeter measurement data, unit t/h,
△FiDIFor high temperature ultrasonic wave flowmeter measurement error, unit t/h；
According to the average value F of the high temperature ultrasonic wave flowmeter measurement data under 6 verification operating modesiDI USWith high temperature ultrasonic wave flowmeter
Measurement error △ FiDI, draw the high temperature ultrasonic wave flowmeter school under oxygen-eliminating device incoming condensing water caliber and condensed water parameter state
Test curve；
Step 2：(1) oxygen-eliminating device outlet feedwater flow WdoutCalculating
In the B Turbo-generator Sets for not installing ASME flow nozzles, height is added to the high temperature ultrasonic wave flowmeter of verification and is removed
The hydrophobic flow of oxygen device measures；Oxygen-eliminating device incoming condensing water flow is measured using the high temperature ultrasonic wave flowmeter of verification；In conjunction with
Each oxygen-eliminating device verified under operating mode can be calculated into steam flow amount W in formula (2), formula (3) and formula (4)5And oxygen-eliminating device
Export feedwater flow Wdout；
Wdout×(hfo5-hfi5)+Wdlevel×(hfo5-hfi5)=W5×(h5-hfi5)+W5d×(h6d-hfi5) (2)
Wdlevel+Wdout=Wc+(W5+W5d) (3)
Wc=Wcm+ΔWc (4)
In formula (2), formula (3) and formula (4), WdoutFor oxygen-eliminating device export feedwater flow, unit t/h,
WcFor oxygen-eliminating device incoming condensing water flow exact value, unit t/h,
WcmFor oxygen-eliminating device incoming condensing water flow measured value, unit t/h,
ΔWcFor oxygen-eliminating device incoming condensing water flow measurement error, unit t/h,
W5dThe hydrophobic flow measured value of oxygen-eliminating device is added to for height, unit t/h,
WdlevelFor deaerator level change equivalent flow, unit t/h,
hfi5For oxygen-eliminating device incoming condensing water enthalpy, unit kJ/kg,
h6dThe hydrophobic enthalpy of oxygen-eliminating device is added to for height, unit kJ/kg,
h5For oxygen-eliminating device steam admission enthalpy value, unit kJ/kg,
hfo5For oxygen-eliminating device export Enthalpy of Feed Water, unit kJ/kg,
WdoutFor oxygen-eliminating device export feedwater flow, unit t/h,
W5It is oxygen-eliminating device into steam flow amount, unit t/h；
(2) drafting of oxygen-eliminating device outlet DCS feedwater flow checking curves
By the oxygen-eliminating device being calculated outlet feedwater flow WdoutWith oxygen-eliminating device outlet feedwater flow school in B Turbo-generator Sets DCS
It is right, when check and correction oxygen-eliminating device outlet feedwater flow variation should cover 50% to 100% load range of Turbo-generator Set operation, often
10% load variations are a verification operating mode, amount to 6 verification operating modes；
6 >=i >=1 is set, under i-th of operating load, data is recorded with the intervals 20s, record 20 minute datas, calculation formula
(2), in formula (3) and formula (4) each parameter average value, and calculate the calculating of oxygen-eliminating device outlet feedwater flow under this operating mode
Value Wdout, i.e. the exact value F of oxygen-eliminating device outlet feedwater flow under i-th of operating loadiDO cal；
Under i-th of operating load, oxygen-eliminating device outlet DCS feedwater flow measurement data average values are denoted as FiDO DCS, oxygen-eliminating device outlet
DCS feedwater flow measurement error △ FiDO DCSIt is calculated by formula (5)：
△FiDO DCS=FiDO cal-FiDO DCS (5)
In formula (5), △ FiDO DCSFor under i-th of operating load oxygen-eliminating device export DCS feedwater flow measurement errors, unit t/h,
FiDO calFor under i-th of operating load oxygen-eliminating device export feedwater flow exact value, unit t/h,
FiDO DCSDCS feedwater flow measurement data average values, unit t/h are exported for oxygen-eliminating device under i-th of operating load；
According to the oxygen-eliminating device outlet DCS feedwater flow measurement data average values F under 6 verification operating modesiDO DCSIt is removed with what is be calculated
Oxygen device exports DCS feedwater flow measurement error △ FiDO DCSDrafting obtains oxygen-eliminating device outlet DCS feedwater flow checking curves；
(3) in normal operation B Turbo-generator Sets oxygen-eliminating device outlet feedwater flow measured value calculating
DCS feedwater flow measured values are exported according to oxygen-eliminating device in normal operation, the oxygen-eliminating device obtained in two (2) through the above steps
Outlet DCS feedwater flow checking curves obtain the measurement error value △ F under corresponding DCS feedwater flow measured valuesDO DCS, and according to public affairs
Oxygen-eliminating device outlet feedwater flow exact value F is calculated in formula (6)DO acc：
FDO acc=FDO DCS+△FDO DCS (6)
In formula (6), FDO accFor in normal operation oxygen-eliminating device export feedwater flow exact value, unit t/h,
△FDO DCSThe measurement error under DCS feedwater flow measured values is exported for corresponding oxygen-eliminating device, unit t/h,
FDO DCSDCS feedwater flow measured values, unit t/h are exported for oxygen-eliminating device in normal operation；
Step 3：(1) DCS overheats the drafting of attemperation water flow checking curve
In the B Turbo-generator Sets for not installing ASME flow nozzles, with high temperature ultrasonic wave flowmeter, to boiler overheating desuperheating water
Flow measurement, and proofreaded with data on flows in B Turbo-generator Sets DCS；When check and correction, overheat attemperation water flow variation, which should cover, to be set
0% to 100% range of attemperation water flow is counted, every 20% design discharge variation is a verification operating mode, amounts to 6 verification works
Condition；
6 >=i >=1 is set, under i-th of operating load, data is recorded with the intervals 10s, record 2 minute datas, calculate DCS overheats
Attemperation water flow measurement data FiDS DCSAnd the average value F of high temperature ultrasonic wave flowmeter measurement dataiDS US, calculated according to formula (7)
DCS overheats attemperation water flow measurement error：
△FiDS=FiDS US-FiDS DCS (7)
In formula (7), FiDS DCSFor under i-th of operating load DCS overheat attemperation water flow measurement data, unit t/h,
FiDS USThe average value of overheat attemperation water flow data, unit are measured for high temperature ultrasonic wave flowmeter under i-th of operating load
For t/h,
△FiDSFor under i-th of operating load DCS overheat attemperation water flow measurement error, unit t/h,
According to the DCS overheat attemperation water flow measurement data F under 6 verification operating modesiDS DCSIt is measured with DCS overheat attemperation water flows
Error delta FiDS, draw and obtain DCS overheat attemperation water flow checking curves；
(2) drafting of DCS reheating attemperation water flow checking curve
In the B Turbo-generator Sets for not installing ASME flow nozzles, with high temperature ultrasonic wave flowmeter, to boiler reheating desuperheating water
Flow measurement, and proofreaded with data on flows in B Turbo-generator Sets DCS；When check and correction, the variation of reheating attemperation water flow, which should cover, to be set
0% to 100% range of attemperation water flow is counted, every 20% design discharge variation is a verification operating mode, amounts to 6 verification works
Condition；
6 >=i >=1 is set, under i-th of operating load, data is recorded with the intervals 10s, record 2 minute datas, calculate DCS reheating
Attemperation water flow measurement data FiDR DCSAnd the average value F of high temperature ultrasonic wave flowmeter measurement dataiDR US, calculated according to formula (8)
Obtain DCS reheating attemperation water flow measurement errors：
△FiDR=FiDR US-FiDR DCS (8)
In formula (8), FiDR DCSFor DCS reheating attemperation water flow measurement data under i-th of operating load, unit t/h,
FiDR USThe average value of reheating attemperation water flow data, unit are measured for high temperature ultrasonic wave flowmeter under i-th of operating load
For t/h,
△FiDRFor DCS reheating attemperation water flow measurement error under i-th of operating load, unit t/h,
The DCS reheating attemperation water flow measurement data F measured under operating mode according to 6iDR DCSIt is measured with DCS reheating attemperation water flows
Error delta FiDR, draw and obtain DCS reheating attemperation water flow checking curves；
Step 4：(1) calculating of boiler inlet feedwater flow exact value
In the B Turbo-generator Sets for not installing ASME flow nozzle normal operations, normal operation is calculated according to formula (9)
Middle boiler inlet feedwater flow exact value FBI CAL：
FBI CAL=FDO acc-(FDS DCS+△FDS)-(FDR DCS+△FDS) (9)
In formula (9), △ FDSFor overheat attemperation water flow measurement error value, unit t/h,
△FDRFor reheating attemperation water flow measurement error value, unit t/h,
FDS DCSTo overheat attemperation water flow in normal operation, unit t/h,
FDR DCSFor reheating attemperation water flow in normal operation, unit t/h,
FDO accFeedwater flow exact value, unit t/h are exported for oxygen-eliminating device in normal operation；
(2) in DCS boiler inlet feedwater flow verification
6 steady working condition for choosing B Turbo-generator Set normal operations are verified, and boiler inlet feedwater flow changes when verification
50% to 100% range of Turbo-generator Set load should be covered, every 10% Design cooling load variation is a verification operating mode, is amounted to
6 verification operating modes；
6 >=i >=1 is set, under i-th of operating load, data is recorded with the intervals 10s, record 30 minute datas, calculate DCS pots
Stove import feedwater flow measurement data average value FiBI DCSAnd the exact value F of boiler inlet feedwater flowiBI CAL；Boiler inlet water supply
The exact value F of flowiBI CALUsed oxygen-eliminating device exports feedwater flow when calculating, overheats attemperation water flow, reheating desuperheat flow
Amount takes the corresponding DCS statistical averages under i-th of operating mode；Boiler under i-th of operating load is calculated according to formula (10)
Import feedwater flow measurement error；
△FiBI=FiBI CAL-FiBI DCS (10)
In formula (10), △ FiBIFor boiler inlet feedwater flow measurement error under i-th of operating load, unit t/h,
FiBI CALFor the exact value of boiler inlet feedwater flow under i-th of operating load, unit t/h,
FiBI DCSFor DCS boiler inlets feedwater flow measurement data average value under i-th of operating load, unit t/h,
The DCS boiler inlet feedwater flow measurement data average values F measured under operating mode according to 6iBI DCSWith boiler inlet to flow
Measurement error delta FiBI, draw and obtain DCS boiler inlet feedwater flow checking curves；
(3) in normal operation boiler inlet feedwater flow exact value calculating
According to the DCS boiler inlet feedwater flow checking curves obtained in above-mentioned steps, interpolation calculation obtains DCS in normal operation
Boiler inlet feedwater flow FBI DCSCorresponding flow error value △ FBI；
Boiler inlet feedwater flow exact value in normal operation is calculated according to formula (11)：
FBI ACC=FBI DCS+△FBI (11)
In formula (11), FBI DCSFor DCS boiler inlets feedwater flow in normal operation, unit t/h,
FBI ACCFor boiler inlet feedwater flow exact value in normal operation, unit t/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611184482.6A CN106679747B (en) | 2016-12-20 | 2016-12-20 | A kind of on-line testing method of Turbo-generator Set boiler inlet feedwater flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611184482.6A CN106679747B (en) | 2016-12-20 | 2016-12-20 | A kind of on-line testing method of Turbo-generator Set boiler inlet feedwater flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106679747A CN106679747A (en) | 2017-05-17 |
| CN106679747B true CN106679747B (en) | 2018-09-21 |
Family
ID=58870070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611184482.6A Active CN106679747B (en) | 2016-12-20 | 2016-12-20 | A kind of on-line testing method of Turbo-generator Set boiler inlet feedwater flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106679747B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887613A (en) * | 2019-01-22 | 2019-06-14 | 国电科学技术研究院有限公司 | A kind of method and system calculating boiler efficiency |
| CN113532798A (en) * | 2021-08-10 | 2021-10-22 | 西安热工研究院有限公司 | Method for calculating minimum feed water flow of low load of supercritical power station boiler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840889A (en) * | 2012-09-25 | 2012-12-26 | 华北电力大学（保定） | Soft measuring method for main steam flow of unit system utility boiler |
| CN102867113A (en) * | 2012-08-23 | 2013-01-09 | 山东电力集团公司电力科学研究院 | Method for determining feed water flow through deaerator inlet condensed water flow |
| CN103048020A (en) * | 2013-01-22 | 2013-04-17 | 山东电力集团公司电力科学研究院 | Main steam flow online calculation method of power station based on performance testing data |
| CN103063436A (en) * | 2012-12-25 | 2013-04-24 | 河北省电力建设调整试验所 | Turbine heat consumption rate index calculation result judgment method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4506353B2 (en) * | 2004-08-25 | 2010-07-21 | 株式会社日立製作所 | Water supply control device for steam generator in power plant |
| WO2012090778A1 (en) * | 2010-12-27 | 2012-07-05 | 三菱重工業株式会社 | Condensate flow rate control device for power-plant, and control method |
-
2016
- 2016-12-20 CN CN201611184482.6A patent/CN106679747B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867113A (en) * | 2012-08-23 | 2013-01-09 | 山东电力集团公司电力科学研究院 | Method for determining feed water flow through deaerator inlet condensed water flow |
| CN102840889A (en) * | 2012-09-25 | 2012-12-26 | 华北电力大学（保定） | Soft measuring method for main steam flow of unit system utility boiler |
| CN103063436A (en) * | 2012-12-25 | 2013-04-24 | 河北省电力建设调整试验所 | Turbine heat consumption rate index calculation result judgment method |
| CN103048020A (en) * | 2013-01-22 | 2013-04-17 | 山东电力集团公司电力科学研究院 | Main steam flow online calculation method of power station based on performance testing data |
Non-Patent Citations (2)
| Title |
|---|
| "基于除氧器入口疏水流量的给水流量";郭江龙 等;《汽轮机技术》;20111031;第53卷(第5期);第345-346页 * |
| "提高大容量机组给水流量测量精度的方法及意义";李珩;《山东电力高等专科学校学报》;20100531;第13卷(第5期);第41-45页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106679747A (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103792927B (en) | The use of statistical analysis in power plant performance monitoring | |
| CN107201921B (en) | Steam turbine heat consumption rate online monitoring system and measuring method | |
| CN112067304B (en) | Method for measuring inlet flow of compressor in engine whole machine test | |
| CN101825502B (en) | Effluent and drain temperature measurement and calculation method of heater with drain cooler on steam turbine | |
| CN103063354B (en) | Confirming method for turbine standard backpressure in thermal power generating unit energy consumption assessment and coal consumption check test | |
| CN106679747B (en) | A kind of on-line testing method of Turbo-generator Set boiler inlet feedwater flow | |
| CN107543733A (en) | A kind of condenser duty on-line monitoring system and measuring method | |
| CN110469372B (en) | Uncertainty control method for thermal performance test of steam turbine | |
| CN105225008A (en) | A kind of method predicting thermodynamic system of steam tur internal operation parameter | |
| CN103776502B (en) | Fired power generating unit mesolow cylinder entrance reheat heat steam mass flow real time measure method | |
| JPH02247599A (en) | Improvement in measured value accuracy of flowrate at core of boiling water reactor | |
| CN107131917B (en) | A kind of measurement method and measuring device of the specified guide vane water leakage of the hydraulic turbine | |
| CN104019852A (en) | Method for accurately testing feed water flow based on throttling element characteristic coefficient K | |
| CN110108336A (en) | The calculation method of gas-steam combined cycle set exhaust-heat boiler flue gas flow | |
| CN106033496B (en) | Steam generator design margin calculation method | |
| CN110469530B (en) | Performance test system and efficiency test method for axial-flow induced draft fan of power station boiler | |
| CN103196523A (en) | Steam turbine performance test standard flow calibration method based on auxiliary flow measurement | |
| CN112629602B (en) | Condenser and vacuum system air leakage flow measurement method | |
| CN109408978A (en) | A kind of circulating water flow online soft sensor method | |
| CN111397679A (en) | Main steam flow measuring device of nuclear power plant and measuring method thereof | |
| CN113221477A (en) | Heat balance calculation method for determining circulating water flow | |
| JP3735458B2 (en) | Core flow measurement device | |
| CN109187036A (en) | A kind of piping-main scheme back pressure turbine main steam flow calculation method | |
| CN214584098U (en) | Condenser performance on-line monitoring system | |
| CN115017730B (en) | Condensate pump electricity consumption correction calculation method in station service electricity consumption calculation of thermal power generating unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |