CN103189706B - The performance management method of condenser, the management method of generating equipment, management system and program - Google Patents
The performance management method of condenser, the management method of generating equipment, management system and program Download PDFInfo
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- CN103189706B CN103189706B CN201180026579.3A CN201180026579A CN103189706B CN 103189706 B CN103189706 B CN 103189706B CN 201180026579 A CN201180026579 A CN 201180026579A CN 103189706 B CN103189706 B CN 103189706B
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- boiler
- condenser
- generating equipment
- value
- reheater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B11/00—Controlling arrangements with features specially adapted for condensers
Abstract
Obtain the KA value of the heat conductivility representing condenser (40) according to the thermal balance of generating equipment (10), and evaluate the performance of condenser by KA value.
Description
Technical field
The present invention relates to the performance management method of condenser, the management method of generating equipment, management system and program.
The application based on and require the priority of No. 2010-124677, Japanese patent application submitted on May 31st, 2010, its content is incorporated herein by reference.
Background technology
In the prior art, in the performance management of the management of generating equipment, especially condenser useful vacuum degree as evaluation index.In the evaluation that make use of vacuum, often need the correction carrying out being considered as the seawater of cooling medium or the temperature of air etc.
In the performance management of condenser, in the evaluation utilizing vacuum, the setting of corrected value is complicated.In generating equipment, it is desirable to obtain the high performance management method of a kind of stability.
Summary of the invention
The object of the present invention is to provide the method for the performance can stablizing management condenser.Other objects are stable management method, management system and the program that provide in generating equipment.
According to an aspect of the present invention, provide the performance management method of condenser, it is the method for the performance of the condenser that management generating equipment uses, and comprises: according to the thermal balance in described generating equipment, obtain the KA value of the heat conductivility representing described condenser; And the performance of described condenser is evaluated by described KA value.
According to a further aspect in the invention, provide the management method of generating equipment, it is the method for management generating equipment, and comprises: according to the thermal balance of described generating equipment, obtains the KA value of the heat conductivility representing condenser; And the performance of described condenser is evaluated by described KA value.
According to other aspects of the invention, provide the management system of generating equipment, it is the system of management generating equipment, and comprise: (1) obtains representing the KA value of the heat conductivility of condenser according to the thermal balance of described generating equipment, and (2) obtain the device of the vacuum in described generating equipment; And the efferent of information exporting the information relevant to described KA value and be correlated with described vacuum.
According to other aspects of the invention, provide a kind of program, it performs for making the computer of the system of management generating equipment: the step obtaining the KA value of the heat conductivility representing condenser according to the thermal balance of described generating equipment; And the step of performance of described condenser is evaluated by described KA value.
According to other aspects of the invention, provide a kind of program, it performs for making the computer of the system of management generating equipment: the step obtaining the KA value of the heat conductivility representing condenser according to the thermal balance of described generating equipment; Obtain the step of the vacuum in described generating equipment; And based on the information relevant to described KA value and the information relevant with described vacuum, judge the step of the hydraulic performance decline of at least one in the equipment beyond described condenser and described condenser.
According to above-mentioned performance management method, then by using the KA value obtained according to the thermal balance in generating equipment, stably can manage the performance of condenser.Further, above-mentioned management method can be made contributions to the stabilisation of the management of starting equipment with administrating system.
Accompanying drawing explanation
Fig. 1 is the figure of the summary that generating equipment is shown.
Fig. 2 is the figure drawn to the measurement data of vacuum.
Fig. 3 is the figure of the performance curve of the design load illustrated based on reheater.
Fig. 4 is the figure drawn to the calculating data of the KA value obtained according to thermal balance.
Fig. 5 is the figure for illustration of judging whether to need the example safeguarded from expense aspect.
Fig. 6 A is the figure of the example of the combination that the measurement data of condenser vacuum and the calculating data of KA value are shown.
Fig. 6 B is the figure of another example of the combination that the measurement data of condenser vacuum and the calculating data of KA value are shown.
Fig. 6 C is the figure of other examples of the combination that the measurement data of condenser vacuum and the calculating data of KA value are shown.
Fig. 6 D is the figure of other examples of the combination that the measurement data of condenser vacuum and the calculating data of KA value are shown.
Fig. 7 is the schematic diagram that generating equipment management system is shown.
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are described.Fig. 1 is the figure of the summary that generating equipment 10 is shown.
As shown in Figure 1, generating equipment 10 comprises boiler (boiler) 20, generator 30, condenser 40, measurement mechanism 60 and control device 70.Various forms of generating equipment (plant) can be adopted.Measurement mechanism 60 can measure the various parameters such as condenser vacuum.Control device 70 can overall control generating equipment 10.
In FIG, generating equipment 10 is the steam turbines (turbineplant) possessing generator 30, and this generator 30 comprises pressure turbine 31, middle-pressure turbine 32 and low-pressure turbine 33.Can carry out arranging the various distortion such as pumping path.In another example, the steam turbine of the double machine structure of the generator comprising and there is pressure turbine and low-pressure turbine and the generator with middle-pressure turbine and low-pressure turbine can be adopted.Further, generating equipment 10 can adopt and to add boiler 20 or instead to adopt the heating system of heat pump.
In the generating equipment 10 shown in Fig. 1, by feed pump 50, the water as working fluid is boosted.In boiler 20, fuel is burned.Calory burning is communicated to water to generate HCS.In reheating portion 52, reheating is carried out to the steam that have passed pressure turbine.Steam from reheating portion 52 passes through middle-pressure turbine 32 and low-pressure turbine 33.In each turbine 31,32,33, the pressure of steam (working fluid), kinetic energy can be converted into rotation function, are converted into electric energy further in generator 30.In condenser 40, the steam (damp steam of low pressure) from low-pressure turbine 33 is cooled.The water carrying out the condensation of condenser 40 is delivered to feed pump 50 again.
In condenser 40, between working fluid (steam) and cooling medium (cooling fluid (air, water, seawater etc.)), form heat exchange.In one example in which, in the indoor that working fluid (steam) flows, adopt the heat exchange structure (heat exchanger) (surface condenser, indirect cooling-type) of the cooling tube being configured with cooling medium flowing.Cooling medium captures the heat of working fluid by cooling tube.In another example, in indoor, the cooling water in feeding chamber (chamber) is adopted directly to contact heat exchange structure (heat exchanger) (direct contact type) of working fluid (steam).
Generally, the very large impact of the turbine thermal efficiency by condenser vacuum is steamed.Vacuum higher (condenser pressure is low), then the turbine thermal efficiency is higher.And the vacuum of condenser easily keeps high vacuum at coolant temperature (ocean temperature, air themperature) low range content, in high scope, vacuum aggravates (condenser pressure rising).
If the performance of known condenser (heat conductivility of heat exchanger) declines, then have nothing to do with the height of coolant temperature, vacuum can worsen.Such as, heat conductivility is caused to decline at dirts such as the inner aufwuches of the cooling tube of condenser.Therefore, in the performance management of condenser, general useful vacuum degree is as evaluation index.For the maintenance of condenser, carry out removing the process such as the dirt of the cooling tube inside being attached to condenser.
On the other hand, if turbine performance declines, then vacuum also can worsen.Such as, if the internal efficiency of turbine declines, then the steam of higher than design load enthalpy (enthalpy) flows into condenser, and therefore cooling becomes insufficient, thus vacuum worsens.
Fig. 2 is the figure drawn to the measurement data of vacuum.Can consider that coolant temperature etc. carrys out correcting measuring data (carrying out the point of drawing) or becomes the designing and arranging atmospheric pressure curve (illustrating with solid line) of a reference value.As shown in Figure 2, there is following situation: for designing and arranging atmospheric pressure curve, measurement data (point of drawing) entirety offsets to high pressure side (vacuum deterioration side).At this moment, can not be in operation and confirm that the condenser performance caused due to the dirt etc. of cooling tube declines, and due to the working fluid in turbine outlet (condenser inlet) be the reasons such as damp steam, so be difficult to accurately grasp steam enthalpy, thus be also difficult to accurately consider the impact that turbine performance declines.Namely, although the measurement data according to Fig. 2 can recognize and be difficult to the deterioration of condenser vacuum be in operation and judge that its reason is that the decline of the performance of condenser is still the decline of the performance of the equipment (turbine etc.) beyond condenser.
Here, the performance (heat conductivility of heat exchanger) of condenser is represented by following formula (1).KA: the reception and registration performance [W/K] of heat exchanger, W: the heat-shift [W] of heat exchanger, Tm: log-mean temperature difference [K].
KA＝W/Tm…(1)
Log-mean temperature difference (Tm) is represented by following formula (2).
Tm＝(Δt
1-Δt
2)/ln(Δt
1/Δt
2)…(2)
Δ t
1=condenser temperature-cold side outlet temperature
Δ t
2=condenser temperature-cold side inlet temperature
In this case, the heat-shift (W) of heat exchanger can calculate by following formula (3) or formula (4).
W＝(h
st-out-h
sat-liq)·G
st…(3)
H
st-out: turbine outlet (condenser inlet) steam enthalpy [J/kg]
H
sat-liq: condensator outlet condensed water enthalpy [J/kg]
G
st: vapor flow rate [kg/s]
W＝(h
cool-out-h
cool-in)·G
cool…(4)
H
cool-out: cold side outlet enthalpy [J/kg]
H
cool-in: cold side entrance enthalpy [J/kg]
G
cool: cold side flow [kg/s]
But, in formula (3) and formula (4), be especially difficult to the steam enthalpy (h grasping turbine outlet
st-out) and cold side flow (G
cool).Therefore, the heat-shift (W) accurately calculating heat exchanger based on formula (3) and formula (4) is in fact difficult to.
Therefore, the thermal balance of generating equipment is conceived to.As shown in Figure 1, in the thermal balance of generating equipment 10, heat input comprises from being heated of boiler 20 and being heated in reheating portion 52, and thermal output comprises the output of generator 30 and the heat release of condenser 40.The heat release (heat-shift W) of condenser 40 can represent by following formula (5).
W＝(h
boiler_out-h
boiler_in)·G
boiler+(h
reheater_out-h
reheater_in)·G
reheater-W
elec/η
elec…(5)
H
boiler_out: boiler export enthalpy [J/kg]
H
boiler_in: boiler inlet enthalpy [J/kg]
G
boiler: boiler flow [kg/s]
H
reheater_out: reheating portion outlet enthalpy [J/kg]
H
boiler_in: reheating portion entrance enthalpy [J/kg]
G
reheater: reheating portion flow [kg/s]
W
elec: generator exports [W=J/s]
η
elec: generator efficiency [-]
Based on formula (1), formula (2) and formula (5), according to the thermal balance in generating equipment, the heat conductivility KA value of the heat exchanger represented in condenser can be obtained.Each parameter value in formula (5) can be measured than being easier to.For being heated of reheating portion (reheater), be can not using this flow as the equipment that parameter obtains when, also can obtain according to the performance curve (output-reheating portion heat curve (reheater heat curve), curve of approximation) based on design load.
Therefore, by being conceived to the thermal balance in generating equipment, the KA value of heat conductivility representing condenser actually can be obtained, thus can by the performance of this KA value accurate evaluation condenser.
Fig. 4 is the figure drawn to the calculating data of the KA value obtained according to thermal balance.In the diagram, calculate data (point of having drawn) to be distributed near the datum line (indicated by the solid line) of expression a reference value.That is, can judge that the heat conductivility of condenser is sound, not need to safeguard condenser.
As for judging whether the key element needing to safeguard condenser, well-behaved in degree from a reference value such as KA value being calculated to data can be used.Such as, exceeded the threshold value of regulation if well-behaved from degree, then judged to need to be serviced.In one example in which, the well-behaved threshold value from degree can be set as more than 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15% or 20%.
Replace or add ground, expense can be compared between the situation that condenser is safeguarded and the situation do not safeguarded and continue use, and judge whether based on this result the maintenance needing condenser.Comparison element can comprise such as fuel cost, maintenance cost and sale of electricity income.The fuel cost of generating equipment can calculate based on the KA value obtained according to thermal balance.
Fig. 5 is the figure for illustration of judging whether to need the example safeguarded from expense aspect.As shown in Figure 5, when continuing generating when not safeguarding condenser, the increase (expense (1)) owing to not carrying out the fuel cost safeguarded can be estimated, on the other hand, also can estimate owing to continuing the sale of electricity income (income (3)) run.When safeguarding condenser, can maintenance cost be estimated, on the other hand, also can estimate the decline (expense (4), be also zero sometimes) of sale of electricity income.
In the example shown in fig. 5, with deduct expense (2) from income (4) and compared with the value obtained, deduct expense (1) from income (3) and the large situation ((3)-(1) > (4)-(2)) of the value that obtains, can consider to make and do not safeguard condenser and continue the judgement that generates electricity.And, with deduct expense (2) from income (4) and compared with the value obtained, deduct expense (1) from income (3) and the little situation ((3)-(1) < (4)-(2)) of the value obtained, can consider to make the judgement safeguarding condenser.And, with deduct expense (2) from income (4) and compared with the value obtained, deduct expense (1) from income (3) and the practically identical situation ((3)-(1)=(4)-(2)) of the value that obtains, safeguard to the need of carrying out the judgement (whichever will do) can considering to make neutrality.
Can contribute to cost cutting, energy-saving, carbon dioxide output reductionization the need of the suitable judgement safeguarded.And, can various conversion be carried out the need of the judgement safeguarded.Such as, time interval of with due regard to periodic maintenance on the basis of above-mentioned comparison element, the expense contrast effect of each maintenance content, carbon dioxide can discharge the various key elements such as countermeasure expense, thus judge whether from expense aspect to need to safeguard.
Here, as previously mentioned, when recognizing the deterioration of condenser vacuum according to the measurement data as the condenser vacuum of Fig. 2, be difficult to accurately judge that its reason is that the decline of the performance of condenser is still the decline of the performance of the equipment beyond condenser.On the other hand, as shown in Figure 4, can according to the thermal balance of generating equipment, actual, directly to obtain condenser heat conductivility (KA value).Therefore, based on the combination of the measurement data of the calculating data of the KA value obtained according to thermal balance and condenser vacuum, the decline of the performance of the equipment beyond condenser can be grasped.Mainly turbine can be enumerated as the equipment beyond condenser.
Fig. 6 A, Fig. 6 B, Fig. 6 C and Fig. 6 D respectively illustrate the example of the combination of the measurement data of condenser vacuum and the calculating data of KA value.In Fig. 6 A ~ Fig. 6 D, solid line represents datum line (design load), and dotted line represents the data of carrying out drawing.
In the combination example shown in Fig. 6 A, the calculating data of KA value and the measurement data of condenser vacuum are all drawn on datum line (design load) or near it (well-behaved in fact little from degree from a reference value).In this case, can judge that the performance of the equipment beyond the performance of condenser and condenser perfects.
In the combination example shown in Fig. 6 B, the calculating data of KA value and the measurement data of condenser vacuum all more well-behaved in datum line (design load) (offset to worsen side).When well-behaved be corresponding between from degree, the penalty of mainly condenser can be judged.That is, according to the well-behaved deterioration of performance from condenser can be estimated of the calculating data of KA value, the deterioration of this condenser performance also can reflect by the measurement data of vacuum.For well-behaved from degree, association can be had between KA value and vacuum.If vacuum well-behaved from degree be can according to KA value well-behaved from the degree that estimates accordingly of degree well-behaved from, then can estimate the penalty in fact only having condenser.
In the examples of combinations shown in Fig. 6 C, be drawn on datum line (design load) or near it (well-behaved in fact little from degree from a reference value) relative to the calculating data of KA value, the measurement data of condenser vacuum is more well-behaved in datum line (design load) (offset to and worsen side).In this case, can judge that the performance of condenser is sound, the penalty of the equipment beyond condenser.
In the examples of combinations shown in Fig. 6 D, the calculating data of KA value and the measurement data of condenser vacuum all more well-behaved in datum line (design load) (offset to worsen side).If well-behaved from level vacuum degree be greater than KA value, then can estimate the penalty of condenser, but also the penalty of the equipment beyond condenser can be estimated.That is, in this case, the penalty of both the equipment beyond condenser and condenser can be judged.
Like this, based on vacuum from a reference value well-behaved from KA value from a reference value well-behaved from, the performance of condenser can be evaluated, and the performance of the equipment beyond condenser can be evaluated.Even in this case, as judging whether the key element needing to safeguard generating equipment (equipment beyond the condenser such as condenser, turbine), also can use such as well-behaved in degree from a reference value of each data.Such as, exceeded the threshold value of regulation if well-behaved from degree, then judged to need to safeguard.In one example in which, the well-behaved threshold value from degree can be set as more than 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15% or 20%.
Replace or add ground, as used Fig. 5 illustratively, and can not safeguard and continue to compare expense between situation about using in situation about safeguarding generating equipment (equipment beyond the condenser such as condenser, turbine), and judge whether the maintenance of the equipment needing to carry out beyond the condenser such as condenser and turbine based on this result.
Fig. 7 is the schematic diagram that generating equipment management system 100 is shown.Management system 100 comprises measurement mechanism 60, input unit 127, control device 70 and output device (efferent) 128.In the figure 7, calculation element 120 is such as computer systems.Calculation element 120 has the converters such as A/D converter 123, CPU (arithmetic processing apparatus) 124 and memory 125 etc.Measurement data from the various parameters of measurement mechanism 60 is converted as required in converter 123 grade, and is taken into CPU124.
In the present embodiment, control device 70 can (1) according to the thermal balance of generating equipment obtain represent condenser heat conductivility KA value while, (2) obtain the vacuum of generating equipment.Further, control device 70 based on the information relevant to KA value and the information relevant with vacuum, can judge the hydraulic performance decline of the equipment beyond condenser and condenser.
Output device 128 can comprise display unit and/or printing equipment.Output device 128 can export the information relevant to the data inputted and the information etc. relevant with calculating.In the present embodiment, output device 128 can export the information relevant to KA value and the information relevant with vacuum.Further, output device 128 can show side by side or print represent KA value from a reference value well-behaved from information and expression vacuum from a reference value well-behaved from information.Such as, as shown in Fig. 6 A ~ 6D, can show or print figure that the data relevant to condenser vacuum are drawn side by side, figure that the data of being correlated with KA value are drawn.Or, for condenser vacuum and KA value, can show or print well-behaved in spending relevant numerical value from data to a reference value side by side.
By show side by side or print represent KA value from a reference value well-behaved from information and expression vacuum from a reference value well-behaved from information, thus the equipment of the reason being designated as hydraulic performance decline can be promoted.Output form from output device 128 can carry out various conversion.
And, can the program being used for performing above-mentioned each process be recorded in the recording medium of embodied on computer readable, then make computer system read in be recorded in the program of this recording medium.
" computer system " mentioned here can comprise the hardware such as OS (operating system), peripheral equipment.Further, if " computer system " utilizes WWW system, then setting comprises homepage provides environment (or display environment).Further, " recording medium of embodied on computer readable " refers to the portable mediums such as writeable nonvolatile memory, CD-ROM such as floppy disk, disk, ROM (read-only storage), flash memory, is built in the storage devices such as the hard disk of computer system.
In addition, " recording medium of embodied on computer readable " as by the server when communication line such as network, the telephone line transmission program such as internet, become the volatile memory (such as DRAM (DynamicRandomAccessMemory, dynamic random access memory)) of client computer system inside such, comprise the device that can keep program within a certain period of time.Further, said procedure from the computer system storing this program at storage device etc., by the transmission wave in transmission medium or transmission medium, can be transferred to other computer systems.Here, " transmission medium " of transmission procedure refers to the medium with the function of transmission information as the communication lines (order wire) such as the networks such as internet (communication network), telephone line.Further, said procedure also can realize a part for above-mentioned functions.In addition, also can be can realize by carrying out with the program being recorded in computer combining above-mentioned functions, so-called differential file (difference program).
The numerical value used in the above description is an example, and the present invention is not limited to this.The interpolation of structure, omission, displacement and other amendments can be carried out without departing from the scope of spirit of the present invention.The present invention is not limited to above-mentioned explanation.
Symbol description
10 generating equipment 20 boilers
30 generator 40 condensers
31,32,33 turbine 52 reheating portions
60 measurement mechanism 70 control device
120 calculation element 124CPU
128 output device 100 management systems
Claims (9)
1. a performance management method for condenser, it is the method for the performance of the condenser that management generating equipment uses, and the feature of the performance management method of described condenser is,
Described generating equipment comprises heating system, generator, condenser, measurement mechanism, control device and reheating portion,
Described heating system comprises boiler,
The performance management method of described condenser comprises:
According to the thermal balance in described generating equipment, obtain the KA value of the heat conductivility representing described condenser; And
The performance of described condenser is evaluated by described KA value,
Described thermal balance, based on comprising being heated and the heat of being heated input in described reheating portion and the balance between the thermal output comprising the output of described generator and the heat release of described condenser from described boiler, uses and calculates described KA value with following formula,
KA＝W/Tm，
W＝(h
boiler_out-h
boiler_in)·G
boiler+(h
reheater_out-h
reheater_in)·G
reheater-W
elec/η
elec，
Wherein,
W: heat-shift [W=J/s],
Tm: log-mean temperature difference [K],
H
boiler_out: boiler export enthalpy [J/kg],
H
boiler_in: boiler inlet enthalpy [J/kg],
G
boiler: boiler flow [kg/s],
H
reheater_out: reheating portion outlet enthalpy [J/kg],
H
boiler_in: reheating portion entrance enthalpy [J/kg],
G
reheater: reheating portion flow [kg/s],
W
elec: generator exports [W=J/s],
η
elec: generator efficiency [-].
2. the performance management method of condenser according to claim 1, is characterized in that,
The performance management method of described condenser also comprises:
The situation that described condenser is safeguarded and do not safeguard and continue use situation between compare expense; And
Based on the comparative result of described expense, judge whether the maintenance needing to carry out described condenser.
3. the performance management method of condenser according to claim 2, is characterized in that,
The comparison of described expense comprises: the fuel cost calculating described generating equipment based on described KA value.
4. a management method for generating equipment, it is the method for management generating equipment, and the feature of the management method of described generating equipment is,
Described generating equipment comprises heating system, generator, condenser, measurement mechanism, control device and reheating portion,
Described heating system comprises boiler,
The management method of described generating equipment comprises:
According to the thermal balance of described generating equipment, obtain the KA value of the heat conductivility representing described condenser; And
The performance of described condenser is evaluated by described KA value,
Described thermal balance, based on comprising being heated and the heat of being heated input in described reheating portion and the balance between the thermal output comprising the output of described generator and the heat release of described condenser from described boiler, uses and calculates described KA value with following formula,
KA＝W/Tm，
W＝(h
boiler_out-h
boiler_in)·G
boiler+(h
reheater_out-h
reheater_in)·G
reheater-W
elec/η
elec，
Wherein,
W: heat-shift [W=J/s],
Tm: log-mean temperature difference [K],
H
boiler_out: boiler export enthalpy [J/kg],
H
boiler_in: boiler inlet enthalpy [J/kg],
G
boiler: boiler flow [kg/s],
H
reheater_out: reheating portion outlet enthalpy [J/kg],
H
boiler_in: reheating portion entrance enthalpy [J/kg],
G
reheater: reheating portion flow [kg/s],
W
elec: generator exports [W=J/s],
η
elec: generator efficiency [-].
5. the management method of generating equipment according to claim 4, is characterized in that,
The management method of described generating equipment also comprises:
Obtain the vacuum in described generating equipment; And
Based on described vacuum from a reference value well-behaved from described KA value from a reference value well-behaved from, evaluate the performance of the equipment beyond described condenser.
6. the management method of the generating equipment according to claim 4 or 5, is characterized in that,
The management method of described generating equipment also comprises:
The situation that described generating equipment is safeguarded and do not safeguard and continue use situation between compare expense; And
Based on the comparative result of described expense, judge whether the maintenance needing to carry out described generating equipment.
7. a management system for generating equipment, it is the system of management generating equipment, and the feature of the management system of described generating equipment is,
Described generating equipment comprises heating system, generator, condenser, measurement mechanism, control device and reheating portion,
Described heating system comprises boiler,
The management system of described generating equipment comprises:
(1) obtain the KA value of the heat conductivility representing condenser according to the thermal balance of described generating equipment, and (2) obtain the device of the vacuum in described generating equipment; And
The efferent of information exporting the information relevant to described KA value and be correlated with described vacuum,
Described control device, based on comprising being heated and the heat of being heated input in described reheating portion and the balance between the thermal output comprising the output of described generator and the heat release of described condenser from described boiler, uses and calculates described KA value with following formula,
KA＝W/Tm，
W＝(h
boiler_out-h
boiler_in)·G
boiler+(h
reheater_out-h
reheater_in)·G
reheater-W
elec/η
elec，
Wherein,
W: heat-shift [W=J/s],
Tm: log-mean temperature difference [K],
H
boiler_out: boiler export enthalpy [J/kg],
H
boiler_in: boiler inlet enthalpy [J/kg],
G
boiler: boiler flow [kg/s],
H
reheater_out: reheating portion outlet enthalpy [J/kg],
H
boiler_in: reheating portion entrance enthalpy [J/kg],
G
reheater: reheating portion flow [kg/s],
W
elec: generator exports [W=J/s],
η
elec: generator efficiency [-].
8. the management system of generating equipment according to claim 7, is characterized in that,
Described efferent show side by side or print represent described KA value from a reference value well-behaved from information and expression described vacuum from a reference value well-behaved from information.
9. the management system of generating equipment according to claim 8, is characterized in that,
Described control device, based on the information relevant to described KA value and the information relevant with described vacuum, judges the hydraulic performance decline of the equipment beyond described condenser and described condenser.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010124677 | 2010-05-31 | ||
| JP2010-124677 | 2010-05-31 | ||
| PCT/JP2011/057681 WO2011152108A1 (en) | 2010-05-31 | 2011-03-28 | Method for controlling performance of steam condenser, method for controlling power generation plant, control system, and program |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103189706A CN103189706A (en) | 2013-07-03 |
| CN103189706B true CN103189706B (en) | 2016-01-20 |
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ID=45066495
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| CN201180026579.3A Expired - Fee Related CN103189706B (en) | 2010-05-31 | 2011-03-28 | The performance management method of condenser, the management method of generating equipment, management system and program |
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| Country | Link |
|---|---|
| JP (1) | JPWO2011152108A1 (en) |
| CN (1) | CN103189706B (en) |
| WO (1) | WO2011152108A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05141879A (en) * | 1991-11-20 | 1993-06-08 | Toshiba Corp | Condenser performance diagnosis device |
| JP2000240406A (en) * | 1999-02-23 | 2000-09-05 | Electric Power Dev Co Ltd | Solid fuel/gaseous fuel composite power generating equipment using pressurized fluidized bed boiler |
| JP2003067038A (en) * | 2001-08-24 | 2003-03-07 | Hitachi Ltd | Operation maintenance information providing system, and management cost collecting method |
| CN101614139A (en) * | 2009-07-31 | 2009-12-30 | 王世英 | Multicycle power generation thermodynamic system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3965275B2 (en) * | 2000-10-13 | 2007-08-29 | 東京電力株式会社 | Thermal efficiency diagnosis method and apparatus for thermal power plant |
-
2011
- 2011-03-28 WO PCT/JP2011/057681 patent/WO2011152108A1/en active Application Filing
- 2011-03-28 JP JP2012518279A patent/JPWO2011152108A1/en active Pending
- 2011-03-28 CN CN201180026579.3A patent/CN103189706B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05141879A (en) * | 1991-11-20 | 1993-06-08 | Toshiba Corp | Condenser performance diagnosis device |
| JP2000240406A (en) * | 1999-02-23 | 2000-09-05 | Electric Power Dev Co Ltd | Solid fuel/gaseous fuel composite power generating equipment using pressurized fluidized bed boiler |
| JP2003067038A (en) * | 2001-08-24 | 2003-03-07 | Hitachi Ltd | Operation maintenance information providing system, and management cost collecting method |
| CN101614139A (en) * | 2009-07-31 | 2009-12-30 | 王世英 | Multicycle power generation thermodynamic system |
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| CN103189706A (en) | 2013-07-03 |
| JPWO2011152108A1 (en) | 2013-07-25 |
| WO2011152108A1 (en) | 2011-12-08 |
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