CN105607549B - Flue gas washing absorption cleaning heat exchange tower with life-span real-time estimate function - Google Patents
Flue gas washing absorption cleaning heat exchange tower with life-span real-time estimate function Download PDFInfo
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- CN105607549B CN105607549B CN201610166134.XA CN201610166134A CN105607549B CN 105607549 B CN105607549 B CN 105607549B CN 201610166134 A CN201610166134 A CN 201610166134A CN 105607549 B CN105607549 B CN 105607549B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24024—Safety, surveillance
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Abstract
The invention discloses the flue gas washing absorption cleaning heat exchange tower with life-span real-time estimate function, including exchange column body and the intelligent monitor system being arranged on exchange column body, the system includes monitoring modular, data processing module, security state evaluation module, early warning and alarming module and emulation display module, wherein monitoring modular includes wireless sensor network, strain sensor assemblies and displacement transducer, data processing module includes collection central station, signal conditioner and signal transmitting apparatus, security state evaluation module includes microprocessor, early warning and alarming module includes analysis processor and alarm, emulation display module includes three-dimension GIS emulation platform.The present invention realizes the real-time monitoring to exchange column health, and the residual life of exchange column can be predicted according to Monitoring Data, accurate intelligence.
Description
Technical field
The present invention relates to boiler exhaust gas purifying processing device design field, and in particular to has life-span real-time estimate function
Flue gas washing absorption cleaning heat exchange tower.
Background technology
Most of flue gas washing absorption cleaning heat exchange tower in correlation technique can not be pre- according to the data of Sensor monitoring
Survey the residual life of its own.This defect is reduced to the timely of the safe and healthy monitoring of flue gas washing absorption cleaning heat exchange tower
Property, attendant is safeguarded from carrying out necessary finishing to the flue gas washing absorption cleaning heat exchange tower in time.
The content of the invention
In view of the above-mentioned problems, the present invention provides the flue gas washing absorption cleaning heat exchange with life-span real-time estimate function
Tower.
The purpose of the present invention is realized using following technical scheme：
Flue gas washing absorption cleaning heat exchange tower with life-span real-time estimate function, including exchange column body and be arranged on
The intelligent monitor system of exchange column body, the intelligent monitor system include：
(1) monitoring modular, including exchange column body health is monitored wireless sensor network, for monitor exchange
The strain sensor assemblies and displacement transducer of each dangerous position of tower body, the wireless sensor network all standing is to exchange column
Body health structure is monitored, meanwhile, network uses advanced physical message emerging system, to exchange column body health structure
Real-time perception；Institute's displacement sensors are for the working base point of monitoring dangerous position change in displacement and for checking work base
Three dimensions displacement monitoring, each dangerous position of the exchange column body, work are carried out based on the global datum mark of point stability
Make basic point and global datum mark by carrying out FEM Simulation determination to exchange column body；The strain sensor assemblies bag
Performance parameters and completely identical in structure work strain transducer and temperature-compensating strain transducer are included, the work is used should
Change sensor and temperature-compensating are arranged on each dangerous position of exchange column body after being connected with strain transducer；
(2) data processing module, its data for including gathering central station, being collected into collection central station carry out conditioning amplification
The signal transmitting apparatus that the signal conditioner of processing and the data handled signal conditioner are transmitted；
(3) security state evaluation module, the security state evaluation module include the microprocessor of connection signal transmitting apparatus
The displacement data transmitted by signal transmitting apparatus be calculated between two time phase t by device, the microprocessor
Average displacement is poor, phenomenon therefore first displacement difference is compensated because exchange column ontological existence expands with heat and contract with cold, then will be average
Displacement difference judges whether the average displacement difference is in a safe condition compared with regulation displacement difference threshold value, and according to strain
Sensor cluster 24h Monitoring Data is calculated, and obtains stress amplitude spectrum, the residue for calculating exchange column body is composed according to stress amplitude
Fatigue life, and whether the remanent fatigue life is judged into the remanent fatigue life compared with designing fatigue life
It is in a safe condition；
A, average displacement difference Δ s calculation formula is：
Wherein, it is sampling time interval to take 0.5h, max＆min(i+t)To be very big in the displacement data of previous time phase
Value and minimum sum, max＆min(i+2t)For the maximum and minimum sum in the displacement data in latter time stage, w (i+
T) it is the displacement data of previous time phase, w (i+2t) is the displacement data in latter time stage, and N is sampling number；
B, the coefficient of expansion is set as α, and revised average displacement difference is：
Wherein, α1, α2..., αnFor the material temperature coefficient of expansion of each dangerous position, a1, a2..., anFor coefficient, T is choosing
Mean temperature in section of fixing time, T0For exchange column body location year-round average temperature.
C, the judgment formula of life-span security evaluation is：
Work as σx(i)≥σbWhen,
Work as σx(i) ＜ σbWhen,
Wherein, σbFor the structural fatigue limit, σx(i) it is the hot spot stress range of each monitoring point, k is that the slope of the curve of fatigue falls
Number, piFor the actual Cyclic Stress coefficient undergone of structure, T under hot spot stress rangeBTo design fatigue life, n represents monitoring point
It number, in actual applications, can be influenceed by exchange column body overload, therefore be dynamic change, and as overload uses number of days
Change be a nonlinear process,TAFor the initial designs fatigue longevity
Life, dzRepresent that the overall design of exchange column body uses number of days, dgRepresent that exchange column body overload uses number of days；When A is more than 0, judgement is tied
The structure life-span is in a safe condition, when A is less than or equal to 0, output alarm signal；
(4) early warning and alarming module, it includes being used for the analysis processor, alarm and information record data for preventing false alarm
Storehouse, the input of the analysis processor connect the microprocessor, and the output end of analysis processor connects the alarm；
(5) display module, including the three-dimension GIS emulation platform being connected with microprocessor are emulated, the three-dimension GIS emulation is flat
Platform carries out emulation to the assessment result of security state evaluation module and shown, simulates the health status of exchange column body, simulation process
For：
A, GIS platform is imported after the modeling of tower body is swapped using finite element software, builds exchange column body respectively
The model of different component, the locus of each exchange column body member is adjusted in GIS platform；
B, by different shape symbols in GIS platform each dangerous position of simulative display exchange column body, strain sensing
Device assembly and displacement transducer；
C, color as defined in being used according to the result of safe condition module estimation the dangerous position for being not at safe condition exists
Shown on the interface of GIS platform.
Beneficial effects of the present invention are：Connected by the structures of modules, realize exchange column dynamical health it is complete from
Dynamicization monitors, and is easy to personnel to pinpoint the problems, solve the problems, such as early；Propose and swap tower body with wireless sensor network and be good for
Health structure monitoring, covering is wide, real-time；Fatigue life safety judgment formula is proposed, reduces the workload of calculating, is improved
The operating efficiency of monitoring system；The calculation formula of average displacement is proposed, and average displacement is corrected, using flat
Equal displacement judges compared with displacement threshold value, reduces the workload of calculating；Pair of strain sensors carries out temperature-compensating, improves
The measurement accuracy of strain, and then improve the overall measurement accuracy of system；Utilize GIS emulation platforms simulation exchange column body
Health status, there is the good effect that interface alternation is carried out with user.
Brief description of the drawings
Using accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not form any limit to the present invention
System, for one of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to the following drawings
Other accompanying drawings.
Fig. 1 is the structured flowchart of the present invention.
Embodiment
The invention will be further described with the following Examples.
Embodiment 1：Flue gas washing absorption cleaning heat exchange tower with life-span real-time estimate function as shown in Figure 1, its
Including exchange column body and the intelligent monitor system for being arranged on exchange column body, the intelligent monitor system includes：
(1) monitoring modular, including exchange column body health is monitored wireless sensor network, for monitor exchange
The strain sensor assemblies and displacement transducer of each dangerous position of tower body, the wireless sensor network all standing is to exchange column
Body health structure is monitored, meanwhile, network uses advanced physical message emerging system, to exchange column body health structure
Real-time perception；Institute's displacement sensors are for the working base point of monitoring dangerous position change in displacement and for checking work base
Three dimensions displacement monitoring, each dangerous position of the exchange column body, work are carried out based on the global datum mark of point stability
Make basic point and global datum mark by carrying out FEM Simulation determination to exchange column body；The strain sensor assemblies bag
Performance parameters and completely identical in structure work strain transducer and temperature-compensating strain transducer are included, the work is used should
Change sensor and temperature-compensating are arranged on each dangerous position of exchange column body after being connected with strain transducer；
(2) data processing module, its data for including gathering central station, being collected into collection central station carry out conditioning amplification
The signal transmitting apparatus that the signal conditioner of processing and the data handled signal conditioner are transmitted；
(3) security state evaluation module；
(4) early warning and alarming module, it includes being used for the analysis processor, alarm and information record data for preventing false alarm
Storehouse, the input of the analysis processor connect the microprocessor, and the output end of analysis processor connects the alarm；
(5) display module, including the three-dimension GIS emulation platform being connected with microprocessor are emulated, the three-dimension GIS emulation is flat
Platform carries out emulation to the assessment result of security state evaluation module and shown, simulates the health status of exchange column body, simulation process
For：
A, GIS platform is imported after the modeling of tower body is swapped using finite element software, builds exchange column body respectively
The model of different component, the locus of each exchange column body member is adjusted in GIS platform；
B, by different shape symbols in GIS platform each dangerous position of simulative display exchange column body, strain sensing
Device assembly and displacement transducer；
C, color as defined in being used according to the result of safe condition module estimation the dangerous position for being not at safe condition exists
Shown on the interface of GIS platform.
The security state evaluation module includes the microprocessor of connection signal transmitting apparatus, and the microprocessor will be by believing
The average displacement that the displacement data of number transmitting device transmission be calculated between two time phase t is poor, due to exchange column
Ontological existence expands with heat and contract with cold and phenomenon therefore first displacement difference compensated, then by average displacement difference and regulation displacement difference threshold value
It is compared, judges whether the average displacement difference is in a safe condition, and according to strain sensor assemblies 24h Monitoring Data
Calculated, obtain stress amplitude spectrum, the remanent fatigue life for calculating exchange column body is composed according to stress amplitude, and the residue is tired
The labor life-span compared with designing fatigue life, judges whether the remanent fatigue life is in a safe condition；
A, average displacement difference Δ s calculation formula is：
Wherein, it is sampling time interval to take 0.5h, max＆min(i+t)To be very big in the displacement data of previous time phase
Value and minimum sum, max＆min(i+2t)For the maximum and minimum sum in the displacement data in latter time stage, w (i+
T) it is the displacement data of previous time phase, w (i+2t) is the displacement data in latter time stage, and N is sampling number；
B, the coefficient of expansion is set as α, and revised average displacement difference is：
Wherein, α1, α2..., αnFor the material temperature coefficient of expansion of each dangerous position, a1, a2..., anFor coefficient, T is choosing
Mean temperature in section of fixing time, T0For exchange column body location year-round average temperature.
C, the judgment formula of life-span security evaluation is：
Work as σx(i)≥σbWhen,
Work as σx(i) ＜ σbWhen,
Wherein, σbFor the structural fatigue limit, σx(i) it is the hot spot stress range of each monitoring point, k is that the slope of the curve of fatigue falls
Number, piFor the actual Cyclic Stress coefficient undergone of structure, T under hot spot stress rangeBTo design fatigue life, n represents monitoring point
It number, in actual applications, can be influenceed by exchange column body overload, therefore be dynamic change, and as overload uses number of days
Change be a nonlinear process,TAFor the initial designs fatigue longevity
Life, dzRepresent that the overall design of exchange column body uses number of days, dgRepresent that exchange column body overload uses number of days；When A is more than 0, judgement is tied
The structure life-span is in a safe condition, when A is less than or equal to 0, output alarm signal.
In this embodiment, connected by the structure of modules, realize the full-automation of the dynamical health of exchange column
Monitoring, is easy to personnel to pinpoint the problems, solve the problems, such as early；Propose and swap tower body health knot with wireless sensor network
Structure monitors, and covering is wide, real-time；Fatigue life safety judgment formula is proposed, reduces the workload of calculating, improves prison
The operating efficiency of examining system；The calculation formula of average displacement is proposed, and average displacement is corrected, using average bit
Move and judge compared with displacement threshold value, reduce the workload of calculating；Pair of strain sensors carries out temperature-compensating, and improving should
The measurement accuracy of change, and then improve the overall measurement accuracy of system；Utilize the health of GIS emulation platforms simulation exchange column body
Situation, there is the good effect that interface alternation is carried out with user；Time phase t=24h, it is strong to realize exchange column body dynamic
The full-automatic monitoring of health, the overall measurement accuracy of system improve 15%.
Embodiment 2：Flue gas washing absorption cleaning heat exchange tower with life-span real-time estimate function as shown in Figure 1, its
Including exchange column body and the intelligent monitor system for being arranged on exchange column body, the intelligent monitor system includes：
(1) monitoring modular, including exchange column body health is monitored wireless sensor network, for monitor exchange
The strain sensor assemblies and displacement transducer of each dangerous position of tower body, the wireless sensor network all standing is to exchange column
Body health structure is monitored, meanwhile, network uses advanced physical message emerging system, to exchange column body health structure
Real-time perception；Institute's displacement sensors are for the working base point of monitoring dangerous position change in displacement and for checking work base
Three dimensions displacement monitoring, each dangerous position of the exchange column body, work are carried out based on the global datum mark of point stability
Make basic point and global datum mark by carrying out FEM Simulation determination to exchange column body；The strain sensor assemblies bag
Performance parameters and completely identical in structure work strain transducer and temperature-compensating strain transducer are included, the work is used should
Change sensor and temperature-compensating are arranged on each dangerous position of exchange column body after being connected with strain transducer；
(2) data processing module, its data for including gathering central station, being collected into collection central station carry out conditioning amplification
The signal transmitting apparatus that the signal conditioner of processing and the data handled signal conditioner are transmitted；
(3) security state evaluation module；
(4) early warning and alarming module, it includes being used for the analysis processor, alarm and information record data for preventing false alarm
Storehouse, the input of the analysis processor connect the microprocessor, and the output end of analysis processor connects the alarm；
(5) display module, including the three-dimension GIS emulation platform being connected with microprocessor are emulated, the three-dimension GIS emulation is flat
Platform carries out emulation to the assessment result of security state evaluation module and shown, simulates the health status of exchange column body, simulation process
For：
A, GIS platform is imported after the modeling of tower body is swapped using finite element software, builds exchange column body respectively
The model of different component, the locus of each exchange column body member is adjusted in GIS platform；
B, by different shape symbols in GIS platform each dangerous position of simulative display exchange column body, strain sensing
Device assembly and displacement transducer；
C, color as defined in being used according to the result of safe condition module estimation the dangerous position for being not at safe condition exists
Shown on the interface of GIS platform.
The security state evaluation module includes the microprocessor of connection signal transmitting apparatus, and the microprocessor will be by believing
The average displacement that the displacement data of number transmitting device transmission be calculated between two time phase t is poor, due to exchange column
Ontological existence expands with heat and contract with cold and phenomenon therefore first displacement difference compensated, then by average displacement difference and regulation displacement difference threshold value
It is compared, judges whether the average displacement difference is in a safe condition, and according to strain sensor assemblies 24h Monitoring Data
Calculated, obtain stress amplitude spectrum, the remanent fatigue life for calculating exchange column body is composed according to stress amplitude, and the residue is tired
The labor life-span compared with designing fatigue life, judges whether the remanent fatigue life is in a safe condition；
A, average displacement difference Δ s calculation formula is：
Wherein, it is sampling time interval to take 0.5h, max＆min(i+t)To be very big in the displacement data of previous time phase
Value and minimum sum, max＆min(i+2t)For the maximum and minimum sum in the displacement data in latter time stage, w (i+
T) it is the displacement data of previous time phase, w (i+2t) is the displacement data in latter time stage, and N is sampling number；
B, the coefficient of expansion is set as α, and revised average displacement difference is：
Wherein, α1, α2..., αnFor the material temperature coefficient of expansion of each dangerous position, a1, a2..., anFor coefficient, T is choosing
Mean temperature in section of fixing time, T0For exchange column body location year-round average temperature.
C, the judgment formula of life-span security evaluation is：
Work as σx(i)≥σbWhen,
Work as σx(i) ＜ σbWhen,
Wherein, σbFor the structural fatigue limit, σx(i) it is the hot spot stress range of each monitoring point, k is that the slope of the curve of fatigue falls
Number, piFor the actual Cyclic Stress coefficient undergone of structure, T under hot spot stress rangeBTo design fatigue life, n represents monitoring point
It number, in actual applications, can be influenceed by exchange column body overload, therefore be dynamic change, and as overload uses number of days
Change be a nonlinear process,TAFor the initial designs fatigue longevity
Life, dzRepresent that the overall design of exchange column body uses number of days, dgRepresent that exchange column body overload uses number of days；When A is more than 0, judgement is tied
The structure life-span is in a safe condition, when A is less than or equal to 0, output alarm signal.
In this embodiment, connected by the structure of modules, realize the full-automation of the dynamical health of exchange column
Monitoring, is easy to personnel to pinpoint the problems, solve the problems, such as early；Propose and swap tower body health knot with wireless sensor network
Structure monitors, and covering is wide, real-time；Fatigue life safety judgment formula is proposed, reduces the workload of calculating, improves prison
The operating efficiency of examining system；The calculation formula of average displacement is proposed, and average displacement is corrected, using average bit
Move and judge compared with displacement threshold value, reduce the workload of calculating；Pair of strain sensors carries out temperature-compensating, and improving should
The measurement accuracy of change, and then improve the overall measurement accuracy of system；Utilize the health of GIS emulation platforms simulation exchange column body
Situation, there is the good effect that interface alternation is carried out with user；Time phase t=28h, it is strong to realize exchange column body dynamic
The full-automatic monitoring of health, the overall measurement accuracy of system improve 17%.
Embodiment 3：Flue gas washing absorption cleaning heat exchange tower with life-span real-time estimate function as shown in Figure 1, its
Including exchange column body and the intelligent monitor system for being arranged on exchange column body, the intelligent monitor system includes：
(1) monitoring modular, including exchange column body health is monitored wireless sensor network, for monitor exchange
The strain sensor assemblies and displacement transducer of each dangerous position of tower body, the wireless sensor network all standing is to exchange column
Body health structure is monitored, meanwhile, network uses advanced physical message emerging system, to exchange column body health structure
Real-time perception；Institute's displacement sensors are for the working base point of monitoring dangerous position change in displacement and for checking work base
Three dimensions displacement monitoring, each dangerous position of the exchange column body, work are carried out based on the global datum mark of point stability
Make basic point and global datum mark by carrying out FEM Simulation determination to exchange column body；The strain sensor assemblies bag
Performance parameters and completely identical in structure work strain transducer and temperature-compensating strain transducer are included, the work is used should
Change sensor and temperature-compensating are arranged on each dangerous position of exchange column body after being connected with strain transducer；
(2) data processing module, its data for including gathering central station, being collected into collection central station carry out conditioning amplification
The signal transmitting apparatus that the signal conditioner of processing and the data handled signal conditioner are transmitted；
(3) security state evaluation module；
(4) early warning and alarming module, it includes being used for the analysis processor, alarm and information record data for preventing false alarm
Storehouse, the input of the analysis processor connect the microprocessor, and the output end of analysis processor connects the alarm；
(5) display module, including the three-dimension GIS emulation platform being connected with microprocessor are emulated, the three-dimension GIS emulation is flat
Platform carries out emulation to the assessment result of security state evaluation module and shown, simulates the health status of exchange column body, simulation process
For：
A, GIS platform is imported after the modeling of tower body is swapped using finite element software, builds exchange column body respectively
The model of different component, the locus of each exchange column body member is adjusted in GIS platform；
B, by different shape symbols in GIS platform each dangerous position of simulative display exchange column body, strain sensing
Device assembly and displacement transducer；
C, color as defined in being used according to the result of safe condition module estimation the dangerous position for being not at safe condition exists
Shown on the interface of GIS platform.
The security state evaluation module includes the microprocessor of connection signal transmitting apparatus, and the microprocessor will be by believing
The average displacement that the displacement data of number transmitting device transmission be calculated between two time phase t is poor, due to exchange column
Ontological existence expands with heat and contract with cold and phenomenon therefore first displacement difference compensated, then by average displacement difference and regulation displacement difference threshold value
It is compared, judges whether the average displacement difference is in a safe condition, and according to strain sensor assemblies 24h Monitoring Data
Calculated, obtain stress amplitude spectrum, the remanent fatigue life for calculating exchange column body is composed according to stress amplitude, and the residue is tired
The labor life-span compared with designing fatigue life, judges whether the remanent fatigue life is in a safe condition；
A, average displacement difference Δ s calculation formula is：
Wherein, it is sampling time interval to take 0.5h, max＆min(i+t)To be very big in the displacement data of previous time phase
Value and minimum sum, max＆min(i+2t)For the maximum and minimum sum in the displacement data in latter time stage, w (i+
T) it is the displacement data of previous time phase, w (i+2t) is the displacement data in latter time stage, and N is sampling number；
B, the coefficient of expansion is set as α, and revised average displacement difference is：
Wherein, α1, α2..., αnFor the material temperature coefficient of expansion of each dangerous position, a1, a2..., anFor coefficient, T is choosing
Mean temperature in section of fixing time, T0For exchange column body location year-round average temperature.
C, the judgment formula of life-span security evaluation is：
Work as σx(i)≥σbWhen,
Work as σx(i) ＜ σbWhen,
Wherein, σbFor the structural fatigue limit, σx(i) it is the hot spot stress range of each monitoring point, k is that the slope of the curve of fatigue falls
Number, piFor the actual Cyclic Stress coefficient undergone of structure, T under hot spot stress rangeBTo design fatigue life, n represents monitoring point
It number, in actual applications, can be influenceed by exchange column body overload, therefore be dynamic change, and as overload uses number of days
Change be a nonlinear process,TAFor the initial designs fatigue longevity
Life, dzRepresent that the overall design of exchange column body uses number of days, dgRepresent that exchange column body overload uses number of days；When A is more than 0, judgement is tied
The structure life-span is in a safe condition, when A is less than or equal to 0, output alarm signal.
In this embodiment, connected by the structure of modules, realize the full-automation of the dynamical health of exchange column
Monitoring, is easy to personnel to pinpoint the problems, solve the problems, such as early；Propose and swap tower body health knot with wireless sensor network
Structure monitors, and covering is wide, real-time；Fatigue life safety judgment formula is proposed, reduces the workload of calculating, improves prison
The operating efficiency of examining system；The calculation formula of average displacement is proposed, and average displacement is corrected, using average bit
Move and judge compared with displacement threshold value, reduce the workload of calculating；Pair of strain sensors carries out temperature-compensating, and improving should
The measurement accuracy of change, and then improve the overall measurement accuracy of system；Utilize the health of GIS emulation platforms simulation exchange column body
Situation, there is the good effect that interface alternation is carried out with user；Time phase t=32h, it is strong to realize exchange column body dynamic
The full-automatic monitoring of health, the overall measurement accuracy of system improve 18%.
Embodiment 4：Flue gas washing absorption cleaning heat exchange tower with life-span real-time estimate function as shown in Figure 1, its
Including exchange column body and the intelligent monitor system for being arranged on exchange column body, the intelligent monitor system includes：
(1) monitoring modular, including exchange column body health is monitored wireless sensor network, for monitor exchange
The strain sensor assemblies and displacement transducer of each dangerous position of tower body, the wireless sensor network all standing is to exchange column
Body health structure is monitored, meanwhile, network uses advanced physical message emerging system, to exchange column body health structure
Real-time perception；Institute's displacement sensors are for the working base point of monitoring dangerous position change in displacement and for checking work base
Three dimensions displacement monitoring, each dangerous position of the exchange column body, work are carried out based on the global datum mark of point stability
Make basic point and global datum mark by carrying out FEM Simulation determination to exchange column body；The strain sensor assemblies bag
Performance parameters and completely identical in structure work strain transducer and temperature-compensating strain transducer are included, the work is used should
Change sensor and temperature-compensating are arranged on each dangerous position of exchange column body after being connected with strain transducer；
(2) data processing module, its data for including gathering central station, being collected into collection central station carry out conditioning amplification
The signal transmitting apparatus that the signal conditioner of processing and the data handled signal conditioner are transmitted；
(3) security state evaluation module；
(4) early warning and alarming module, it includes being used for the analysis processor, alarm and information record data for preventing false alarm
Storehouse, the input of the analysis processor connect the microprocessor, and the output end of analysis processor connects the alarm；
(5) display module, including the three-dimension GIS emulation platform being connected with microprocessor are emulated, the three-dimension GIS emulation is flat
Platform carries out emulation to the assessment result of security state evaluation module and shown, simulates the health status of exchange column body, simulation process
For：
A, GIS platform is imported after the modeling of tower body is swapped using finite element software, builds exchange column body respectively
The model of different component, the locus of each exchange column body member is adjusted in GIS platform；
B, by different shape symbols in GIS platform each dangerous position of simulative display exchange column body, strain sensing
Device assembly and displacement transducer；
C, color as defined in being used according to the result of safe condition module estimation the dangerous position for being not at safe condition exists
Shown on the interface of GIS platform.
The security state evaluation module includes the microprocessor of connection signal transmitting apparatus, and the microprocessor will be by believing
The average displacement that the displacement data of number transmitting device transmission be calculated between two time phase t is poor, due to exchange column
Ontological existence expands with heat and contract with cold and phenomenon therefore first displacement difference compensated, then by average displacement difference and regulation displacement difference threshold value
It is compared, judges whether the average displacement difference is in a safe condition, and according to strain sensor assemblies 24h Monitoring Data
Calculated, obtain stress amplitude spectrum, the remanent fatigue life for calculating exchange column body is composed according to stress amplitude, and the residue is tired
The labor life-span compared with designing fatigue life, judges whether the remanent fatigue life is in a safe condition；
A, average displacement difference Δ s calculation formula is：
Wherein, it is sampling time interval to take 0.5h, max＆min(i+t)To be very big in the displacement data of previous time phase
Value and minimum sum, max＆min(i+2t)For the maximum and minimum sum in the displacement data in latter time stage, w (i+
T) it is the displacement data of previous time phase, w (i+2t) is the displacement data in latter time stage, and N is sampling number；
B, the coefficient of expansion is set as α, and revised average displacement difference is：
Wherein, α1, α2..., αnFor the material temperature coefficient of expansion of each dangerous position, a1, a2..., anFor coefficient, T is choosing
Mean temperature in section of fixing time, T0For exchange column body location year-round average temperature.
C, the judgment formula of life-span security evaluation is：
Work as σx(i)≥σbWhen,
Work as σx(i) ＜ σbWhen,
Wherein, σbFor the structural fatigue limit, σx(i) it is the hot spot stress range of each monitoring point, k is that the slope of the curve of fatigue falls
Number, piFor the actual Cyclic Stress coefficient undergone of structure, T under hot spot stress rangeBTo design fatigue life, n represents monitoring point
It number, in actual applications, can be influenceed by exchange column body overload, therefore be dynamic change, and as overload uses number of days
Change be a nonlinear process,TAFor the initial designs fatigue longevity
Life, dzRepresent that the overall design of exchange column body uses number of days, dgRepresent that exchange column body overload uses number of days；When A is more than 0, judgement is tied
The structure life-span is in a safe condition, when A is less than or equal to 0, output alarm signal.
In this embodiment, connected by the structure of modules, realize the full-automation of the dynamical health of exchange column
Monitoring, is easy to personnel to pinpoint the problems, solve the problems, such as early；Propose and swap tower body health knot with wireless sensor network
Structure monitors, and covering is wide, real-time；Fatigue life safety judgment formula is proposed, reduces the workload of calculating, improves prison
The operating efficiency of examining system；The calculation formula of average displacement is proposed, and average displacement is corrected, using average bit
Move and judge compared with displacement threshold value, reduce the workload of calculating；Pair of strain sensors carries out temperature-compensating, and improving should
The measurement accuracy of change, and then improve the overall measurement accuracy of system；Utilize the health of GIS emulation platforms simulation exchange column body
Situation, there is the good effect that interface alternation is carried out with user；Time phase t=36h, it is strong to realize exchange column body dynamic
The full-automatic monitoring of health, the overall measurement accuracy of system improve 20%.
Embodiment 5：Flue gas washing absorption cleaning heat exchange tower with life-span real-time estimate function as shown in Figure 1, its
Including exchange column body and the intelligent monitor system for being arranged on exchange column body, the intelligent monitor system includes：
(1) monitoring modular, including exchange column body health is monitored wireless sensor network, for monitor exchange
The strain sensor assemblies and displacement transducer of each dangerous position of tower body, the wireless sensor network all standing is to exchange column
Body health structure is monitored, meanwhile, network uses advanced physical message emerging system, to exchange column body health structure
Real-time perception；Institute's displacement sensors are for the working base point of monitoring dangerous position change in displacement and for checking work base
Three dimensions displacement monitoring, each dangerous position of the exchange column body, work are carried out based on the global datum mark of point stability
Make basic point and global datum mark by carrying out FEM Simulation determination to exchange column body；The strain sensor assemblies bag
Performance parameters and completely identical in structure work strain transducer and temperature-compensating strain transducer are included, the work is used should
Change sensor and temperature-compensating are arranged on each dangerous position of exchange column body after being connected with strain transducer；
(2) data processing module, its data for including gathering central station, being collected into collection central station carry out conditioning amplification
The signal transmitting apparatus that the signal conditioner of processing and the data handled signal conditioner are transmitted；
(3) security state evaluation module；
(4) early warning and alarming module, it includes being used for the analysis processor, alarm and information record data for preventing false alarm
Storehouse, the input of the analysis processor connect the microprocessor, and the output end of analysis processor connects the alarm；
(5) display module, including the three-dimension GIS emulation platform being connected with microprocessor are emulated, the three-dimension GIS emulation is flat
Platform carries out emulation to the assessment result of security state evaluation module and shown, simulates the health status of exchange column body, simulation process
For：
A, GIS platform is imported after the modeling of tower body is swapped using finite element software, builds exchange column body respectively
The model of different component, the locus of each exchange column body member is adjusted in GIS platform；
B, by different shape symbols in GIS platform each dangerous position of simulative display exchange column body, strain sensing
Device assembly and displacement transducer；
C, color as defined in being used according to the result of safe condition module estimation the dangerous position for being not at safe condition exists
Shown on the interface of GIS platform.
The security state evaluation module includes the microprocessor of connection signal transmitting apparatus, and the microprocessor will be by believing
The average displacement that the displacement data of number transmitting device transmission be calculated between two time phase t is poor, due to exchange column
Ontological existence expands with heat and contract with cold and phenomenon therefore first displacement difference compensated, then by average displacement difference and regulation displacement difference threshold value
It is compared, judges whether the average displacement difference is in a safe condition, and according to strain sensor assemblies 24h Monitoring Data
Calculated, obtain stress amplitude spectrum, the remanent fatigue life for calculating exchange column body is composed according to stress amplitude, and the residue is tired
The labor life-span compared with designing fatigue life, judges whether the remanent fatigue life is in a safe condition；
A, average displacement difference Δ s calculation formula is：
Wherein, it is sampling time interval to take 0.5h, max＆min(i+t)To be very big in the displacement data of previous time phase
Value and minimum sum, max＆min(i+2t)For the maximum and minimum sum in the displacement data in latter time stage, w (i+
T) it is the displacement data of previous time phase, w (i+2t) is the displacement data in latter time stage, and N is sampling number；
B, the coefficient of expansion is set as α, and revised average displacement difference is：
Wherein, α1, α2..., αnFor the material temperature coefficient of expansion of each dangerous position, a1, a2..., anFor coefficient, T is choosing
Mean temperature in section of fixing time, T0For exchange column body location year-round average temperature.
C, the judgment formula of life-span security evaluation is：
Work as σx(i)≥σbWhen,
Work as σx(i) ＜ σbWhen,
Wherein, σbFor the structural fatigue limit, σx(i) it is the hot spot stress range of each monitoring point, k is that the slope of the curve of fatigue falls
Number, piFor the actual Cyclic Stress coefficient undergone of structure, T under hot spot stress rangeBTo design fatigue life, n represents monitoring point
It number, in actual applications, can be influenceed by exchange column body overload, therefore be dynamic change, and as overload uses number of days
Change be a nonlinear process,TAFor the initial designs fatigue longevity
Life, dzRepresent that the overall design of exchange column body uses number of days, dgRepresent that exchange column body overload uses number of days；When A is more than 0, judgement is tied
The structure life-span is in a safe condition, when A is less than or equal to 0, output alarm signal.
In this embodiment, connected by the structure of modules, realize the full-automation of the dynamical health of exchange column
Monitoring, is easy to personnel to pinpoint the problems, solve the problems, such as early；Propose and swap tower body health knot with wireless sensor network
Structure monitors, and covering is wide, real-time；Fatigue life safety judgment formula is proposed, reduces the workload of calculating, improves prison
The operating efficiency of examining system；The calculation formula of average displacement is proposed, and average displacement is corrected, using average bit
Move and judge compared with displacement threshold value, reduce the workload of calculating；Pair of strain sensors carries out temperature-compensating, and improving should
The measurement accuracy of change, and then improve the overall measurement accuracy of system；Utilize the health of GIS emulation platforms simulation exchange column body
Situation, there is the good effect that interface alternation is carried out with user；Time phase t=40h, it is strong to realize exchange column body dynamic
The full-automatic monitoring of health, the overall measurement accuracy of system improve 21%.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent substitution, without departing from the reality of technical solution of the present invention
Matter and scope.
Claims (1)
1. the flue gas washing absorption cleaning heat exchange tower with life-span real-time estimate function, it is characterized in that, including exchange column body
With the intelligent monitor system for being arranged on exchange column body, the intelligent monitor system includes：
(1) monitoring modular, including exchange column body health is monitored wireless sensor network, for monitoring exchange column sheet
The strain sensor assemblies and displacement transducer of each dangerous position of body, the wireless sensor network all standing is to exchange column body
Healthy structure is monitored, meanwhile, network uses advanced physical message emerging system, to the reality of exchange column body health structure
When perceive；Institute's displacement sensors are for monitoring the working base point of dangerous position change in displacement and steady for checking working base point
Three dimensions displacement monitoring, each dangerous position, the work base of the exchange column body are qualitatively carried out based on global datum mark
Point and global datum mark to exchange column body by carrying out FEM Simulation determination；The strain sensor assemblies include ginseng
Number performance and completely identical in structure work strain transducer and temperature-compensating strain transducer, the work are passed with strain
Sensor and temperature-compensating are arranged at after being connected with strain transducer on each dangerous position of exchange column body；
(2) data processing module, its data for including gathering central station, being collected into collection central station carry out conditioning enhanced processing
Signal conditioner and the signal transmitting apparatus that is transmitted of data to signal conditioner processing；
(3) security state evaluation module, the security state evaluation module include the microprocessor of connection signal transmitting apparatus, institute
State the average bit that the displacement data transmitted by signal transmitting apparatus be calculated between two time phase t by microprocessor
Move it is poor, due to exchange column ontological existence expand with heat and contract with cold phenomenon therefore first displacement difference is compensated, it is then that average displacement is poor
Compared with regulation displacement difference threshold value, judge whether the average displacement difference is in a safe condition, and according to strain transducer
Component 24h Monitoring Data is calculated, and obtains stress amplitude spectrum, the residual fatigue longevity for calculating exchange column body is composed according to stress amplitude
Life, and by the remanent fatigue life compared with designing fatigue life, judge the remanent fatigue life whether in peace
Total state；
A, average displacement difference Δ s calculation formula is：
Wherein, it is sampling time interval to take 0.5h, max＆min(i+t)For the maximum in the displacement data of previous time phase and
Minimum sum, max＆min(i+2t)For the maximum and minimum sum in the displacement data in latter time stage, w (i+t) is
The displacement data of previous time phase, w (i+2t) are the displacement data in latter time stage, and N is sampling number；
B, the coefficient of expansion is set as α, and revised average displacement difference is：
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Wherein, α1, α2..., αnFor the material temperature coefficient of expansion of each dangerous position, a1, a2..., anFor coefficient, T is when selecting
Between mean temperature in section, T0For exchange column body location year-round average temperature；
C, the judgment formula of life-span security evaluation is：
Work as σx(i)≥σbWhen,
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Wherein, σbFor the structural fatigue limit, σx(i) it is the hot spot stress range of each monitoring point, k is that the slope of the curve of fatigue is reciprocal, pi
For the actual Cyclic Stress coefficient undergone of structure, T under hot spot stress rangeBTo design fatigue life, n represents of monitoring point
Number, in actual applications, can be influenceed by exchange column body overload, therefore be dynamic change, and as overload uses number of days
Change is a nonlinear process,TAFor the initial designs fatigue longevity
Life, dzRepresent that the overall design of exchange column body uses number of days, dgRepresent that exchange column body overload uses number of days；When A is more than 0, judgement is tied
The structure life-span is in a safe condition, when A is less than or equal to 0, output alarm signal；
(4) early warning and alarming module, it includes being used for the analysis processor, alarm and information record database for preventing false alarm,
The input of the analysis processor connects the microprocessor, and the output end of analysis processor connects the alarm；
(5) display module, including the three-dimension GIS emulation platform being connected with microprocessor, the three-dimension GIS emulation platform pair are emulated
The assessment result of security state evaluation module carries out emulation and shown, simulates the health status of exchange column body, and simulation process is：
A, GIS platform is imported after the modeling of tower body is swapped using finite element software, it is different to build exchange column body respectively
The model of component, the locus of each exchange column body member is adjusted in GIS platform；
B, by different shape symbols in GIS platform each dangerous position of simulative display exchange column body, strain transducer group
Part and displacement transducer；
C, the dangerous position color as defined in for being not at safe condition is put down in GIS according to the result of safe condition module estimation
Shown on the interface of platform.
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Citations (4)
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| CN101509855A (en) * | 2009-03-17 | 2009-08-19 | 华东理工大学 | On-line prediction method for high-temperature pipe damage and longevity |
| JP2015021071A (en) * | 2013-07-19 | 2015-02-02 | 東京瓦斯株式会社 | Method for predicting breakthrough of methanol adsorption column |
| CN104462843A (en) * | 2014-12-22 | 2015-03-25 | 重庆交通大学 | Fatigue life prediction method for high-modulus asphalt mixture pavement |
| CN105258737A (en) * | 2015-11-23 | 2016-01-20 | 国家电网公司 | Prediction method for corrosion residual life of transmission line towers at industrial area |
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2016
- 2016-03-22 CN CN201610166134.XA patent/CN105607549B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509855A (en) * | 2009-03-17 | 2009-08-19 | 华东理工大学 | On-line prediction method for high-temperature pipe damage and longevity |
| JP2015021071A (en) * | 2013-07-19 | 2015-02-02 | 東京瓦斯株式会社 | Method for predicting breakthrough of methanol adsorption column |
| CN104462843A (en) * | 2014-12-22 | 2015-03-25 | 重庆交通大学 | Fatigue life prediction method for high-modulus asphalt mixture pavement |
| CN105258737A (en) * | 2015-11-23 | 2016-01-20 | 国家电网公司 | Prediction method for corrosion residual life of transmission line towers at industrial area |
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Effective date of registration: 20171211 Address after: 402260 Chongqing city Jiangjin Luohuang Industrial Park B District Applicant after: Chongqing Hanyuan Machinery Co., Ltd. Address before: Gulou road Zhenhai District 315200 Zhejiang city of Ningbo province No. 32 Applicant before: Wei Xingfei |
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