CN106705460B - A kind of control method of the heat transferring medium supply amount of photo-thermal power station heat collector - Google Patents
A kind of control method of the heat transferring medium supply amount of photo-thermal power station heat collector Download PDFInfo
- Publication number
- CN106705460B CN106705460B CN201510782894.9A CN201510782894A CN106705460B CN 106705460 B CN106705460 B CN 106705460B CN 201510782894 A CN201510782894 A CN 201510782894A CN 106705460 B CN106705460 B CN 106705460B
- Authority
- CN
- China
- Prior art keywords
- heat
- heat collector
- transferring medium
- supply amount
- heat transferring
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention provides a kind of control methods of the heat transferring medium supply amount of photo-thermal power station heat collector, the changing value of its heat exchange medium temperature that can be exported according to heat collector, the heat transferring medium supply amount for adjusting heat collector in time guarantees that the heat exchange medium temperature of heat collector outlet meets actual needs.And the unusual service condition of heat collector can be influenced according to the changing value judgement for the heat exchange medium temperature that heat collector exports, and suitable adjustment is made accordingly, to which the heat exchange medium temperature for avoiding heat collector from exporting is too low or excessively high, and then obtain the heat transferring medium of the heat collector outlet of required temperature.
Description
Technical field
The present invention relates to a kind of a kind of supplies of the heat transferring medium of heat collector control field more particularly to photo-thermal power station heat collector
The control method of amount.
Background technique
Solar-thermal generating system includes heat collector and the mirror field for sunlight reflection to be gathered on heat collector.It is defeated
It send the heat transferring medium to heat collector to absorb heat in heat collector, and then provides enough energy for the power generation of steam turbine.
Due to different weather, under different moments, intensity of solar radiation is different, and intensity of solar radiation directly influences thermal-arrest
Therefore the quality of the high-temperature steam of device output for the heat transferring medium quality for guaranteeing heat collector outlet, need to adjust the heat exchange of heat collector
Medium supply amount.
Currently, mostly adjusting the heat transferring medium supply amount of heat collector in real time according to the variation of intensity of solar radiation, this kind is adjusted
Mode is suitable for mirror field and normally receives the condition that solar irradiation and heat collector operate normally, but when exception occurs in heat collector
Or partially reflecting mirror Jing Chang by cloud cover when, this kind of regulative mode can not make correct adjusting, cause heat collector export change
The temperature of thermal medium is unable to satisfy actual needs.
Summary of the invention
The purpose of the present invention is to provide a kind of control methods of the heat transferring medium supply amount of photo-thermal power station heat collector, can
The heat transferring medium supply amount of heat collector under the conditions of varying environment is rationally adjusted, so that the heat exchange for obtaining required temperature is situated between
Matter.
The object of the invention is also to provide a kind of control method of the heat transferring medium supply amount of photo-thermal power station heat collector,
Can the heat transferring medium supply amount to the heat collector under the conditions of varying environment rationally adjusted, to obtain the heat exchange of required temperature
Medium.
To achieve the above object, the controlling party of the heat transferring medium supply amount of a kind of photo-thermal power station heat collector provided by the invention
Method, comprising:
Step S1, the heat transferring medium supply amount Q of initial time heat collector is measured1With the outlet of heat collector described in initial time
Heat exchange medium temperature T1；
Step S2, after a predetermined period, the heat exchange medium temperature T of the outlet of heat collector described in current time is measured2,
And the heat exchange medium temperature T with the heat collector outlet before a predetermined periodBeforeIt makes the difference to obtain changing for the heat collector outlet
The temperature change value Δ T of thermal medium；
Step S3, judge that the heat exchange medium temperature changing value Δ T of the heat collector outlet then keeps one as Δ T >=0
Heat transferring medium supply amount Q before a predetermined periodBefore, as Δ T < 0, then carry out step S4；
Step S4, by the heat transferring medium supply amount Q before a predetermined periodBeforeReduce preset value；
Step S5, return step S2.
Further, before the step S1 further include: step A, judge sun normal direction direct solar radiation value variation whether
Meet starting adjusting condition, when judgement is then to carry out step S1.
Further, the step A includes:
Step A1, the sun normal direction direct solar radiation value DNI at original moment is measured0；
Step A2, real-time measurement sun normal direction direct solar radiation value DNIBecome；
Step A3, as the sun normal direction direct solar radiation value DNI of real-time measurementBecomeWith the sun normal direction direct solar radiation at original moment
Value DNI0Ratio be a, and when 0.4≤a≤0.68, then determine it is and to carry out step S1.
Further, the step A further include:
Step B1, the heat exchange medium temperature T of the outlet of heat collector described in real-time measurementIt is real；
Step B2, when 0.7≤a≤1.3, while the heat exchange medium temperature T of the heat collector outlet of real-time measurementIt is realUnder
When reduction of speed degree is greater than the first preset temperature fall off rate, then judgement is, and carries out step S1.
Further, the first preset temperature fall off rate is F DEG C/min, and the value range of F is 2~5.
Further, between the step S4 and the step S5 further include:
Step C, current heat transferring medium supply amount Q is measuredBecome；
Work as QBecomeWhen the lower limit value of not up to default heat transferring medium supply amount, then step S5 is carried out；
Work as QBecomeReach default heat transferring medium supply amount lower limit value and its it is following when, then after the predetermined time, close institute
State the outlet valve of heat collector.
Further, the lower limit value of the default heat transferring medium supply amount is that the heat transferring medium of initial time heat collector supplies
Measure Q1K%, the value range of K is 5~20.
Further, the value range of the predetermined time is 2min~5min.
Further, further includes: step D, judge whether the variation of sun normal direction direct solar radiation value meets closing adjustment bar
Part then carries out the step S1 to step S5 when determining no, when determining is, then stops executing the step S1 to step
S5 carries out step E；
Step E, according to the sun normal direction direct solar radiation value DNI of current time real-time measurementIt is real, adjust heat transferring medium supply
Amount.
Further, the step D specifically:
Measure the sun normal direction direct solar radiation value DNI at original moment0, real-time measurement sun normal direction direct solar radiation value DNIBecome,
The heat exchange medium temperature T of the outlet of heat collector described in real-time measurementIt is real；
As the sun normal direction direct solar radiation value DNI of real-time measurementBecomeWith the sun normal direction direct solar radiation value DNI at original moment0
Ratio be greater than or equal to 0.7, while TIt is realRate of change less than the second preset temperature fall off rate when, then stop described in execution
Step S1 to the step S5, carries out the step E；
When either condition is unsatisfactory for, then the step S1 to step S5 is carried out.
Further, the heat transferring medium is water, the step E specifically:
According to current time sun normal direction direct solar radiation value DNIIt is realCalculate the available thermal power of moment heat collector absorption；
The feed temperature and feed pressure of heat collector described in the moment are measured, and calculates current Enthalpy of Feed Water；
The steam pressure of the outlet vapor of heat collector described in the moment is measured, and obtains the steaming of the dry saturation under the steam pressure
Steam temperature angle value；
The theoretical enthalpy of dry saturated steam is calculated by the steam pressure and the dry saturated steam temperature value；
The effective hot merit absorbed using the Enthalpy of Feed Water, the theoretical enthalpy of the dry saturated steam and the heat collector
Rate calculates the theoretical confluent of heat collector described in the moment.
The practical confluent of heat collector described in the moment is measured, and adjusts the confluent of the heat collector.
Further, described according to current time sun normal direction direct solar radiation value DNIIt is realCalculate moment heat collector absorption
Available thermal power, specifically:
According to moment sun normal direction direct solar radiation value DNIIt is real, calculate the theoretical thermal power that the heat collector absorbs；
It calculates the available heat power efficiency after reflecting mirror and calculates the hot merit effect of the heat collector effectively absorbed
Rate；
Utilize the theoretical thermal power of heat collector absorption, the available heat power efficiency and institute after reflecting mirror
The heat power efficiency effectively absorbed for stating heat collector calculates the available thermal power of the absorption of heat collector described in the moment；
Further, the heat transferring medium is conduction oil or fuse salt, the step E specifically:
According to current time sun normal direction direct solar radiation value DNIIt is realCalculate effective heat of the absorption of heat collector described in the moment
Power；
The temperature of the heat transferring medium of heat collector inlet and the pressure of heat transferring medium described in the moment are measured, and is calculated
The enthalpy of the heat transferring medium of input；
The temperature of the heat transferring medium in heat collector exit and the pressure of heat transferring medium described in the moment are measured, and is calculated
The enthalpy of the heat transferring medium of output；
It is inhaled using the enthalpy of the heat transferring medium of the input, the enthalpy of the heat transferring medium of the output and the heat collector
The available thermal power of receipts calculates the theoretical supply amount of the heat transferring medium of heat collector described in the moment；
The effective supply amount of the heat transferring medium of heat collector described in the moment is measured, and adjusts the heat transferring medium of the heat collector
Supply amount.
Further, described according to current time sun normal direction direct solar radiation value DNIIt is realCalculate moment heat collector absorption
Available thermal power, specifically:
According to moment sun normal direction direct solar radiation value DNIIt is real, calculate the theoretical thermal power that the heat collector absorbs；
It calculates the available heat power efficiency after reflecting mirror and calculates the hot merit effect of the heat collector effectively absorbed
Rate；
Utilize the theoretical thermal power of heat collector absorption, the available heat power efficiency and institute after reflecting mirror
The heat power efficiency effectively absorbed for stating heat collector calculates the available thermal power of the absorption of heat collector described in the moment.
Further, the second preset temperature fall off rate is G DEG C/min, and the value range of G is 2~5.
Further, the predetermined period is Hmin, and the value range of H is 2~5.
Further, the preset value is the heat transferring medium supply amount Q of initial time heat collector1J%, the value model of J
Enclose is 5~15.
The present invention also provides a kind of photo-thermal power station heat collector heat transferring medium supply amount control method, comprising:
Step S1, the heat transferring medium supply amount Q of initial time heat collector is measured1With the outlet of heat collector described in initial time
Heat exchange medium temperature T1；
Step S2, after a predetermined period, the heat exchange medium temperature T of the outlet of heat collector described in current time is measured2,
And the heat exchange medium temperature T with the heat collector outlet before a predetermined periodBeforeIt makes the difference to obtain changing for the heat collector outlet
The temperature change value Δ T of thermal medium；
Step S3, judge that the heat exchange medium temperature changing value Δ T of the heat collector outlet then keeps one as Δ T≤0
Heat transferring medium supply amount Q before a predetermined periodBefore, as Δ T > 0, then carry out step S4；
Step S4, by the heat transferring medium supply amount Q before a predetermined periodBeforeIncrease preset value；
Step S5, return step S2.
Further, before the step S1 further include:
Step A, judge whether the variation of sun normal direction direct solar radiation value meets starting adjusting condition, when determine be, then into
Row step S1.
Further, the step A includes:
Step A1, original moment sun normal direction direct solar radiation value DNI is measured0；
Step A2, real-time measurement sun normal direction direct solar radiation value DNIBecome, and the heat exchange of the outlet of heat collector described in real-time measurement
Medium temperature T becomes；
Step A3, as the sun normal direction direct solar radiation value DNI of real-time measurementBecomeWith the sun normal direction direct solar radiation at original moment
Value DNI0Ratio be less than or equal to a, and 0.4≤a≤0.68, while real-time measurement heat collector outlet heat transferring medium
Temperature TBecomeRate of climb when being greater than the first preset temperature climbing speed, then determine it is and to carry out step S1.
Further, the first preset temperature climbing speed is F DEG C/min, and the value range of F is 2~5.
Further, between the step S4 and the step S5 further include:
Step B, current heat transferring medium supply amount Q is measuredBecome；
Work as QBecomeWhen the upper limit value of not up to default heat transferring medium supply amount, then step S5 is carried out；
Work as QBecomeReach default heat transferring medium supply amount upper limit value and its more than when, then after the predetermined time, starting subtracts
Warm program.
Further, the heat transferring medium is water, and the desuperheat program includes:
Spray desuperheating processing is implemented to the steam in the heat collector；
The vapor (steam) temperature of the outlet of heat collector described in real-time measurement；
When the vapor (steam) temperature of heat collector outlet reaches the temperature threshold value of steam, it is corresponding to adjust the heat collector
The position of reflecting mirror, so that the light of reflecting mirror aggregation deviates the heat collector.
Further, the heat transferring medium is conduction oil or fuse salt, and the desuperheat program includes:
The heat exchange medium temperature of the outlet of heat collector described in real-time measurement；
When the heat exchange medium temperature of heat collector outlet reaches the temperature threshold value of heat transferring medium, the thermal-arrest is adjusted
The position of the corresponding reflecting mirror of device, so that the light of reflecting mirror aggregation deviates the heat collector.
Further, the upper limit value of the default heat transferring medium supply amount be the heat collector heat transferring medium supply amount most
Big flow value.
Further, the value range of the predetermined time is 2min~5min.
Further, the value range of the temperature threshold value of the steam is 490 DEG C~510 DEG C.
Further, the value range of the temperature threshold value of the heat transferring medium is 390 DEG C~400 DEG C.
Further, further includes:
Step C, judge whether the variation of sun normal direction direct solar radiation value meets closing adjusting condition, when determining no, then
S1 to step S5 described in step is carried out, when determining is, then stops executing the step S1 to step S5, carries out step D；
Step D, according to the sun normal direction direct solar radiation value DNI of current time real-time measurementIt is real, adjust heat transferring medium supply
Amount.
Further, the step C specifically:
Measure the sun normal direction direct solar radiation value DNI at original moment0, real-time measurement sun normal direction direct solar radiation value DNIBecome；
As real-time measurement sun normal direction direct solar radiation value DNIBecomeWith the sun normal direction direct solar radiation value DNI at original moment0's
Ratio is a, as 0.7≤a≤1.3, then stops executing the step S1 to step S5, carries out the step D；
When this condition is unsatisfactory for, then step S1 is carried out to step S5.
Further, the heat transferring medium is water, step D specifically:
According to current time sun normal direction direct solar radiation value DNIIt is realCalculate effective heat of the absorption of heat collector described in the moment
Power；
The feed temperature and feed pressure of heat collector described in the moment are measured, and calculates current Enthalpy of Feed Water；
The steam pressure of the outlet vapor of heat collector described in the moment is measured, and obtains the steaming of the dry saturation under the steam pressure
Steam temperature angle value；
The theoretical enthalpy of dry saturated steam is calculated by the steam pressure and the dry saturated steam temperature value；
The effective hot merit absorbed using the Enthalpy of Feed Water, the theoretical enthalpy of the dry saturated steam and the heat collector
Rate calculates the theoretical confluent of heat collector described in the moment；
The practical confluent of heat collector described in the moment is measured, and adjusts the confluent of the heat collector.
Further, described according to current time sun normal direction direct solar radiation value DNIIt is realCalculate moment heat collector absorption
Available thermal power, specifically:
According to moment sun normal direction direct solar radiation value DNIIt is real, calculate the theoretical thermal power that the heat collector absorbs；
It calculates the available heat power efficiency after reflecting mirror and calculates the hot merit effect of the heat collector effectively absorbed
Rate；
Utilize the theoretical thermal power of heat collector absorption, the available heat power efficiency and institute after reflecting mirror
The heat power efficiency effectively absorbed for stating heat collector calculates the available thermal power of the absorption of heat collector described in the moment.
Further, the heat transferring medium is conduction oil or fuse salt, the step D specifically:
According to current time sun normal direction direct solar radiation value DNIIt is realCalculate the available thermal power of moment heat collector absorption；
The temperature of the heat transferring medium of heat collector inlet and the pressure of heat transferring medium described in the moment are measured, and is calculated
The enthalpy of the heat transferring medium of input；
The temperature of the heat transferring medium in heat collector exit and the pressure of heat transferring medium described in the moment are measured, and is calculated
The enthalpy of the heat transferring medium of output；
It is inhaled using the enthalpy of the heat transferring medium of the input, the enthalpy of the heat transferring medium of the output and the heat collector
The available thermal power of receipts calculates the theoretical supply amount of the heat transferring medium of heat collector described in the moment；
The effective supply amount of the heat transferring medium of heat collector described in the moment is measured, and adjusts the heat transferring medium of the heat collector
Supply amount.
Further, described according to current time sun normal direction direct solar radiation value DNIIt is realCalculate moment heat collector absorption
Available thermal power, specifically:
According to moment sun normal direction direct solar radiation value DNIIt is real, calculate the theoretical thermal power that the heat collector absorbs；
It calculates the available heat power efficiency after reflecting mirror and calculates the hot merit effect of the heat collector effectively absorbed
Rate；
Utilize the theoretical thermal power of heat collector absorption, the available heat power efficiency and institute after reflecting mirror
The heat power efficiency effectively absorbed for stating heat collector calculates the available thermal power of the absorption of heat collector described in the moment.
Further, the predetermined period is Hmin, and the value range of H is 2~5.
Further, the preset value is the J% of the confluent Q1 of initial time heat collector, the value range of J is 5~
15。
Compared with prior art, the controlling party of the heat transferring medium supply amount of a kind of photo-thermal power station heat collector provided by the invention
Method adjusts the heat transferring medium supply amount of heat collector according to the changing value of the heat exchange medium temperature of heat collector outlet in time, guarantees collection
The heat exchange medium temperature of hot device outlet meets actual needs.And the changing value for the heat exchange medium temperature that can be exported according to heat collector is sentenced
The disconnected unusual service condition for influencing heat collector, and suitable adjustment is made accordingly, thus the heat exchange medium temperature mistake for avoiding heat collector from exporting
It is low or excessively high, and then can get the heat transferring medium of the heat collector outlet of required temperature.
Detailed description of the invention
Hereinafter by based on only non-limiting embodiment and with reference to attached drawing come to the present invention retouched in more detail
It states.Wherein:
Fig. 1 is the control of the control method of the heat transferring medium supply amount for the photo-thermal power station heat collector that the embodiment of the present invention one provides
Flow chart processed.
Fig. 2 to Fig. 5 is the controlling party of the heat transferring medium supply amount of photo-thermal power station heat collector provided by Embodiment 2 of the present invention
The control flow chart of method.
Fig. 6 to Figure 10 is the controlling party of the heat transferring medium supply amount for the photo-thermal power station heat collector that the embodiment of the present invention three provides
The control flow chart of method.
Figure 11 is the control method of the heat transferring medium supply amount for the photo-thermal power station heat collector that the embodiment of the present invention four provides
Control flow chart.
Figure 12 to Figure 14 is the control of the heat transferring medium supply amount for the photo-thermal power station heat collector that the embodiment of the present invention five provides
The control flow chart of method.
Figure 15 to Figure 19 is the control of the heat transferring medium supply amount for the photo-thermal power station heat collector that the embodiment of the present invention six provides
The control flow chart of method.
Specific embodiment
Technical scheme in the embodiment of the invention is clearly and completely described with reference to the accompanying drawings and examples, shows
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Apply example, those of ordinary skill in the art's every other embodiment obtained without creative labor, all
Belong to the scope of protection of the invention.
Embodiment one
As shown in Figure 1, a kind of control method of the heat transferring medium supply amount of photo-thermal power station heat collector provided in this embodiment,
Include:
Step S1, the heat transferring medium supply amount Q of initial time heat collector is measured1With changing for initial time heat collector outlet
Heat medium temperature T1；
Step S2, after a predetermined period, the heat exchange medium temperature T of measurement current time heat collector outlet2, and with
The heat exchange medium temperature T of heat collector outlet before one predetermined periodBeforeIt makes the difference to obtain the temperature of the heat transferring medium of heat collector outlet
Spend changing value Δ T；
Step S3, the heat exchange medium temperature changing value Δ T for judging heat collector outlet, as Δ T >=0, then keep one it is pre-
If the heat transferring medium supply amount Q before the periodBefore, as Δ T < 0, then carry out step S4；
Step S4, by the heat transferring medium supply amount Q before a predetermined periodBeforeReduce preset value；
Step S5, return step S2.
Predetermined period therein is Hmin, and the value range of H can be 2~5, and preset value is the heat exchange of initial time heat collector
Medium supply amount Q1J%, the value range of J can be 5~15.
The control method of the heat transferring medium supply amount of photo-thermal power station heat collector provided in this embodiment, exports according to heat collector
Heat exchange medium temperature changing value, gradually adjust heat collector heat transferring medium supply amount, thus guarantee heat collector outlet change
Heat medium temperature meets actual needs.
Embodiment two
Above-described embodiment one gives the detailed process of the control method of heat transferring medium supply amount, to further clarify the control
The entry condition of method processed, one of embodiment in the present embodiment will illustrate the control method of the heat transferring medium supply amount
Specific entry condition.
For the entry condition of the control method of heat transferring medium supply amount in clear embodiment one, gone back before above-mentioned steps S1
Include: step A, judge whether the variation of sun normal direction direct solar radiation value meets starting adjusting condition, when judgement is then to be walked
Rapid S1.Wherein, the entry condition before step S1 includes two kinds of situations, i.e. step A includes two kinds of concrete forms.
One form of them, as shown in Fig. 2, step A includes:
Step A1, the sun normal direction direct solar radiation value DNI at original moment is measured0；
Step A2, real-time measurement sun normal direction direct solar radiation value DNIBecome；
Step A3, as the sun normal direction direct solar radiation value DNI of real-time measurementBecomeWith the sun normal direction direct solar radiation at original moment
Value DNI0Ratio be a, and when 0.4≤a≤0.68, then determine it is and to carry out step S1.
The starting adjusting condition that step A includes measures the sun normal direction direct solar radiation value DNI at original moment first0, and
Real-time measurement sun normal direction direct solar radiation value DNIBecome, by comparing the sun normal direction direct solar radiation value DNI of real-time measurementBecomeWith it is original
The sun normal direction direct solar radiation value DNI at moment0Size can just start step when the size of two values meets certain relationship
Rapid S1 can start the adjustment process of the heat transferring medium supply amount in embodiment one.When the sun normal direction direct projection spoke of real-time measurement
Penetrate value DNIBecomeWith the sun normal direction direct solar radiation value DNI at original moment0Ratio a, and a meet this condition of 0.4≤a≤0.68
When, show the sun normal direction direct solar radiation value DNI for the local environment of heat collector at this time that solar irradiation monitoring device is shownBecomeRelative to
The sun normal direction direct solar radiation value DNI at original moment0It is greatly reduced.According to the display number of the solar irradiation monitoring device
According to, it can be determined that there are two types of situation, the first situations are as follows: the display data of solar irradiation monitoring device for environment locating for heat collector
Consistent with the practical sun normal direction direct solar radiation value of environment at this time, the sun for showing that the corresponding reflecting mirror of heat collector receives is wide
Width reduces, and the solar energy so as to cause the received reflecting mirror reflection of heat collector is also weaker, and then heat collector is caused to export
The temperature of heat transferring medium reduces.At this time, it may be necessary to open the adjusting of step S1 to step S5, i.e., being changed by what measurement heat collector exported
The changing value of heat medium temperature adjusts the heat transferring medium supply amount of heat collector in time.Second situation are as follows: solar irradiation monitoring dress
The display data set and the practical sun normal direction direct solar radiation value of environment at this time are inconsistent, show that solar irradiation monitoring device occurs
The abnormal or solar irradiation monitoring device is by cloud cover, and the corresponding reflecting mirror of heat collector is not yet by cloud cover, heat collector
Still can receive the more solar energy of reflecting mirror aggregation, the temperature so as to cause the heat transferring medium of heat collector outlet increases, this
When, it is also desirable to open the regulating step of step S1 to step S5, i.e., the change of the heat exchange medium temperature exported by measurement heat collector
Change value adjusts the heat transferring medium supply amount of heat collector in time.Therefore, the above analysis, can be timely by step A1 to step A3
Judge the dynamic change of heat collector and its corresponding reflecting mirror local environment, and determines whether to open heat collector according to this kind variation
Heat transferring medium supply amount adjustment process, and then can guarantee heat collector outlet heat exchange medium temperature meet actual needs.
Another form, as shown in figure 3, step A includes:
Step B1, the heat exchange medium temperature T of real-time measurement heat collector outletIt is real；
Step B2, when 0.7≤a≤1.3, while the heat exchange medium temperature T of the heat collector outlet of real-time measurementIt is realLower reduction of speed
When degree is greater than the first preset temperature fall off rate, then judgement is, and carries out step S1.
The starting adjusting condition that step A includes measures the sun normal direction direct solar radiation value DNI at original moment first0, and
Real-time measurement sun normal direction direct solar radiation value DNIBecome, and the heat exchange medium temperature T of real-time measurement heat collector outletIt is real.By comparing
The sun normal direction direct solar radiation value DNI of real-time measurementBecomeWith the sun normal direction direct solar radiation value DNI at original moment0Size, and it is same
When judge heat collector outlet heat exchange medium temperature TIt is realVariation, as the sun normal direction direct solar radiation value DNI of real-time measurementBecomeWith original
The sun normal direction direct solar radiation value DNI at moment beginning0Size meet certain relationship, meanwhile, heat collector outlet heat transferring medium temperature
Spend TIt is realVariation meet certain condition Shi Caike starting step S1, the tune of the heat transferring medium supply amount in embodiment one can be started
Section process.As the sun normal direction direct solar radiation value DNI of real-time measurementBecomeWith the sun normal direction direct solar radiation value DNI at original moment0's
Ratio a, and a meets this condition of 0.7≤a≤1.3, meanwhile, the heat exchange medium temperature T of heat collector outletIt is realDecrease speed it is big
When the first preset temperature fall off rate, which is F DEG C/min, and the value range of F can be 2~5.
Show the sun normal direction direct solar radiation value DNI for the local environment of heat collector at this time that solar irradiation monitoring device is shownBecomeRelative to original
The sun normal direction direct solar radiation value DNI at moment beginning0Amplitude of variation it is smaller.According to the display number of the solar irradiation monitoring device
According to showing that solar energy that the corresponding reflecting mirror of heat collector receives relative to the original moment is the corresponding reflecting mirror of heat collector
The solar energy variation received is smaller, and theoretically, the variation of the heat exchange medium temperature of heat collector outlet should be smaller, still
The heat exchange medium temperature T of actually measured heat collector outletIt is realDecrease speed be but greater than the first preset temperature fall off rate, table
Bright, the sun normal direction direct solar radiation value reflecting mirror corresponding with heat collector that the solar irradiation monitoring device is shown at this time is practical to be received
Sun normal direction direct solar radiation value it is inconsistent, show that the solar irradiation monitoring device is under normal illumination at this time, but the thermal-arrest
The corresponding reflecting mirror of device is smaller so as to cause the received solar irradiation energy of heat collector but by cloud cover, and then causes to collect
The heat exchange medium temperature of hot device outlet is greatly reduced.At this time, it may be necessary to open the regulating step of step S1 to step S5, that is, pass through survey
The changing value of the heat exchange medium temperature of amount heat collector outlet adjusts the heat transferring medium supply amount of heat collector in time.Therefore, in synthesis
Analysis is stated, can judge the dynamic change of heat collector and its corresponding reflecting mirror local environment in time by step B1 to step B2,
And determine whether to open the adjustment process of the heat transferring medium supply amount of heat collector according to this kind variation, and then can guarantee heat collector
The heat exchange medium temperature of outlet meets actual needs.
It is provided in this embodiment to change in conjunction with the specific entry condition of the control method of the heat transferring medium supply amount of foregoing description
The process of the control method of thermal medium supply amount is specific as shown in figure 4, for the every control flow shown in Fig. 4 above-mentioned interior
It is had been described in appearance, details are not described herein.
The above analysis, two kinds of startings provided in this embodiment adjust the condition of the heat transferring medium supply amount of heat collector,
The dynamic change that can judge heat collector and its corresponding reflecting mirror local environment in time can determine heat collector reality according to this kind variation
The received light energy in border is smaller, it will heat collector is opened in the reduction for the heat exchange medium temperature for causing heat collector to export accordingly
The adjustment of heat transferring medium supply amount.
During gradually adjusting the heat transferring medium supply amount of heat collector, when heat transferring medium supply amount is reduced to minimum
When, if the heat exchange medium temperature of heat collector outlet is still reducing, show that the heat exchange medium temperature of heat collector outlet still cannot
Meet actual demand, at this point, then needing to close the outlet valve of heat collector, the part heat transferring medium of heat collector outlet is not made subsequent
It utilizes.For this kind of situation, the present embodiment gives another specific control method again, as shown in figure 5, specifically:
Further include step C between step S4 and step S5, step C is specifically included:
Measure current heat transferring medium supply amount QBecome；
Work as QBecomeWhen the lower limit value of not up to default heat transferring medium supply amount, then step S5 is carried out；
Work as QBecomeReach default heat transferring medium supply amount lower limit value and its it is following when, then after the predetermined time, close collection
The outlet valve of hot device.
The lower limit value of default heat transferring medium supply amount therein is the heat transferring medium supply amount Q of initial time heat collector1's
The value range of K%, K are 5~20.The value range of predetermined time therein is 2min~5min.
Embodiment three
The content that integrated embodiment one or embodiment two describe, according to the temperature change of the heat transferring medium of heat collector outlet,
Gradually adjust the heat transferring medium supply amount of heat collector.It is worth noting that, during gradually adjusting heat transferring medium supply amount,
Environmental condition locating for heat collector and its corresponding reflecting mirror is also possible to change, i.e., when heat collector and its corresponding reflection
The practical sun normal direction direct solar radiation value of mirror local environment is in reasonable floating range, and the heat transferring medium temperature of heat collector outlet
When the variation of degree is in zone of reasonableness, then the adjusting for the heat transferring medium supply amount for stopping the heat collector being needed, and opens normal work
Shaping modes under condition.
This gives the specific adjusting methods under nominal situation, as shown in fig. 6, the photo-thermal power station heat collector changes
The control method of thermal medium supply amount, further includes:
Step D, judge whether the variation of sun normal direction direct solar radiation value meets closing adjusting condition, when determining no, then
Above-mentioned steps S1 to step S5 is carried out, when determining is, then stops executing above-mentioned steps S1 to step S5, carries out step E；
Step E, according to the sun normal direction direct solar radiation value DNI of current time real-time measurementIt is real, adjust heat transferring medium supply
Amount.
Step D wherein specifically:
Measure the sun normal direction direct solar radiation value DNI at original moment0, real-time measurement sun normal direction direct solar radiation value DNIBecome,
The heat exchange medium temperature T of real-time measurement heat collector outletIt is real；
As the sun normal direction direct solar radiation value DNI of real-time measurementBecomeWith the sun normal direction direct solar radiation value DNI at original moment0
Ratio be greater than or equal to 0.7, while TIt is realRate of change less than the second preset temperature fall off rate when, then stop executing above-mentioned
Step S1 to step S5 carries out step E；
When either condition is unsatisfactory for, then above-mentioned steps S1 is carried out to step S5.
Second preset temperature fall off rate therein is G DEG C/min, and the value range of G can be 2~5.
As shown in fig. 7, when heat transferring medium be water, wherein step E specifically:
Step R1, according to current time sun normal direction direct solar radiation value DNIIt is realCalculate the effective of moment heat collector absorption
Thermal power；
Step R2, the feed temperature and feed pressure of the moment heat collector are measured, and calculates current Enthalpy of Feed Water；
Step R3, the steam pressure of the outlet vapor of the moment heat collector is measured, and is obtained dry full under the steam pressure
With vapor (steam) temperature value；
Step R4, the theoretical enthalpy of dry saturated steam is calculated by the steam pressure and the dry saturated steam temperature value；
Step R5, it is absorbed using above-mentioned Enthalpy of Feed Water, the theoretical enthalpy of above-mentioned dry saturated steam and above-mentioned heat collector
Available thermal power calculates the theoretical confluent of the moment heat collector；
Step R6, the practical confluent of the moment heat collector is measured, and adjusts the confluent of heat collector.
As shown in figure 8, step R1 wherein, according to current time sun normal direction direct solar radiation value DNIIt is realCalculate the moment
The available thermal power that heat collector absorbs, specifically:
Step R11, according to moment sun normal direction direct solar radiation value DNIIt is real, calculate the theoretical thermal power that heat collector absorbs；
Step R12, it calculates the available heat power efficiency after reflecting mirror and calculates the heat of heat collector effectively absorbed
Effect rate；
Step R13, theoretical thermal power, the available heat power efficiency sum aggregate after reflecting mirror absorbed using heat collector
The heat power efficiency of hot device effectively absorbed calculates the available thermal power of moment heat collector absorption.
As shown in figure 9, when heat transferring medium be conduction oil or fuse salt, wherein step E specifically:
Step Y1, according to current time sun normal direction direct solar radiation value DNIIt is realCalculate the effective of moment heat collector absorption
Thermal power；
Step Y2, the temperature of the heat transferring medium of the moment heat collector inlet and the pressure of heat transferring medium are measured, and is counted
Calculate the enthalpy of the heat transferring medium of input；
Step Y3, the temperature of the heat transferring medium in the moment heat collector exit and the pressure of heat transferring medium are measured, and is counted
Calculate the enthalpy of the heat transferring medium of output；
Step Y4, the enthalpy of the heat transferring medium of above-mentioned input, the enthalpy of the heat transferring medium of above-mentioned output and above-mentioned are utilized
The available thermal power that heat collector absorbs calculates the theoretical supply amount of the heat transferring medium of the moment heat collector；
Step Y5, the effective supply amount of the heat transferring medium of the moment heat collector is measured, and adjusts the heat transferring medium of heat collector
Supply amount.
As shown in Figure 10, wherein step Y1, according to current time sun normal direction direct solar radiation value DNIIt is realWhen calculating this
The available thermal power that heat collector absorbs is carved, specifically:
Step Y11, according to moment sun normal direction direct solar radiation value DNIIt is real, calculate the theoretical thermal power that heat collector absorbs；
Step Y12, it calculates the available heat power efficiency after reflecting mirror and calculates the heat of heat collector effectively absorbed
Effect rate；
Step Y13, theoretical thermal power, the available heat power efficiency sum aggregate after reflecting mirror absorbed using heat collector
The heat power efficiency of hot device effectively absorbed calculates the available thermal power of moment heat collector absorption.
Wherein, step R11, the theoretical thermal power of the heat collector absorption in step Y11 refers in current sun normal direction direct projection
Under radiation value, heat collector is all reflexed to without any loss and is all absorbed by it the hot merit of solar irradiation
Rate.
But in a practical situation, sunlight loses irradiation energy in transmission process because being influenced by various factors,
Two aspects can be substantially divided into.
One is to calculate the available heat power efficiency after reflecting mirror.Available hot merit effect after reflecting mirror
Rate refers under current sun normal direction direct solar radiation value, and sunlight is from being incident on reflecting mirror and reflect sunlight by reflecting mirror
To heat collector evaporator section this during, heat power efficiency that sunlight can actually utilize after losing.It is specific influence because
The mounting structure and its self performance of element and reflecting mirror have great relationship.
Secondly to calculate the heat power efficiency of heat collector effectively absorbed.Calculate heat collector the heat power efficiency effectively absorbed be
After referring to that the solar irradiation after reflecting mirror reflects is incident upon heat collector, heat collector, which can convert sunlight to, can actually absorb
And the heat power efficiency value of the thermal energy utilized.Specific influence factor and the structure and its self performance of heat collector, which have, greatly closes
System.
The control method of the heat transferring medium supply amount for the heat collector that above-mentioned steps E is provided is when heat collector and its corresponding anti-
The regulative mode that mirror is under nominal situation is penetrated, according to sun normal direction direct solar radiation value, in time, effectively adjusts heat collector
Heat transferring medium supply amount to promote the stability of the heat transferring medium in heat collector exit, and then guarantees heat collector exit
The quality of heat transferring medium.
Example IV
As shown in figure 11, the controlling party of the heat transferring medium supply amount of another photo-thermal power station heat collector is present embodiments provided
Method, comprising:
Step S1, the heat transferring medium supply amount Q of initial time heat collector is measured1With the heat exchange of initial time heat collector outlet
Medium temperature T1；
Step S2, after a predetermined period, the heat exchange medium temperature T of measurement current time heat collector outlet2, and with
The heat exchange medium temperature T of heat collector outlet before one predetermined periodBeforeIt makes the difference to obtain the temperature of the heat transferring medium of heat collector outlet
Changing value Δ T；
Step S3, the heat exchange medium temperature changing value Δ T for judging heat collector outlet, as Δ T≤0, then keep one it is pre-
If the heat transferring medium supply amount Q before the periodBefore, as Δ T > 0, then carry out step S4；
Step S4, by the heat transferring medium supply amount Q before a predetermined periodBeforeIncrease preset value；
Step S5, return step S2.
Predetermined period therein is Hmin, and the value range of H can be 2~5, and preset value is the heat exchange of initial time heat collector
Medium supply amount Q1J%, the value range of J can be 5~15.
The control method of the heat transferring medium supply amount of photo-thermal power station heat collector provided in this embodiment, exports according to heat collector
Heat exchange medium temperature changing value, gradually adjust heat collector heat transferring medium supply amount, thus guarantee heat collector outlet change
Heat medium temperature meets actual needs.
Embodiment five
Above-described embodiment four gives the detailed process of the control method of heat transferring medium supply amount, to further clarify the control
The entry condition of method processed, one of embodiment in the present embodiment will illustrate the control method of the heat transferring medium supply amount
Specific entry condition.
It as shown in Figure 12,13, is the entry condition of the control method of heat transferring medium supply amount in clear example IV, in reality
Before applying the step S1 in example four further include: step A, judge whether the variation of sun normal direction direct solar radiation value meets starting and adjust
Condition, when judgement is then to carry out step S1.Step A is specifically included:
Step A1, original moment sun normal direction direct solar radiation value DNI is measured0；
Step A2, real-time measurement sun normal direction direct solar radiation value DNIBecome, and the heat transferring medium of real-time measurement heat collector outlet
Temperature TBecome；
Step A3, as the sun normal direction direct solar radiation value DNI of real-time measurementBecomeWith the sun normal direction direct solar radiation at original moment
Value DNI0Ratio be less than or equal to a, and 0.4≤a≤0.68, while real-time measurement heat collector outlet heat exchange medium temperature
TBecomeRate of climb when being greater than the first preset temperature climbing speed, then determine it is and to carry out step S1.
The starting adjusting condition that step A includes measures the sun normal direction direct solar radiation value DNI at original moment first0, and
Real-time measurement sun normal direction direct solar radiation value DNIBecomeAnd the heat exchange medium temperature T of real-time measurement heat collector outletBecome.By comparing reality
When the sun normal direction direct solar radiation value DNI that measuresBecomeWith the sun normal direction direct solar radiation value DNI at original moment0Size, when this two
The size of a value meets certain relationship, while the rate of climb that the heat exchange medium temperature T of heat collector outlet becomes is default greater than first
When temperature rate-of-rise, the first preset temperature climbing speed therein is F DEG C/min, and the value range of F is 2~5, can just be started
Step S1 can start the adjustment process of the heat transferring medium supply amount in example IV.When there is the sun normal direction of real-time measurement
Direct solar radiation value DNIBecomeWith the sun normal direction direct solar radiation value DNI at original moment0Ratio a, a meets 0.4≤a≤0.68, and
The heat exchange medium temperature T of heat collector outletBecomeThe rate of climb be greater than first this condition of preset temperature climbing speed when, show too
The sun normal direction direct solar radiation value DNI for the local environment of heat collector at this time that sun irradiation monitoring device is shownBecomeRelative to the original moment
Sun normal direction direct solar radiation value DNI0It is greatly reduced, but the heat exchange medium temperature of heat collector outlet is being sharply increased.
It may determine that accordingly, the display data of solar irradiation monitoring device and the sun that actually received reflecting mirror reflects of heat collector at this time
Light energy is inconsistent, shows that solar irradiation monitoring device the abnormal or solar irradiation monitoring device occurs by cloud cover, and collects
For the corresponding reflecting mirror of hot device not yet by cloud cover, heat collector still can receive the more solar energy of reflecting mirror aggregation, thus
The temperature for the heat transferring medium for causing heat collector to export increases, at this time, it is also desirable to open the adjusting of step S1 to step S5, that is, pass through
The changing value of the heat exchange medium temperature of measurement heat collector outlet adjusts the heat transferring medium supply amount of heat collector in time.Therefore, comprehensive
Above-mentioned analysis, step A1 to step A3 through this embodiment can judge heat collector and its corresponding reflecting mirror actually institute in time
Locate the dynamic change of environment, and change the adjustment process for determining whether to open the heat transferring medium supply amount of heat collector according to this kind,
And then it can guarantee that the heat exchange medium temperature of heat collector outlet meets actual needs.
It is worth noting that, during being stepped up heat transferring medium supply amount, when heat transferring medium supply amount increases to
When upper limit value, the heat exchange medium temperature of heat collector outlet is still rising, then shows the heat exchange medium temperature of heat collector outlet still
It is not so able to satisfy actual demand, at this point, desuperheat program can be started, attempts to change what heat collector exported using specific desuperheat program
Heat medium temperature is reduced to required temperature.For this kind of situation, the present embodiment gives another specific control method again,
As shown in figure 14, specifically:
Further include step B between step S4 and step S5, step B is specifically included:
Current heat transferring medium supply amount Q is measured to become；
When Q becomes the upper limit value of not up to default heat transferring medium supply amount, then step S5 is carried out；
When Q become reach default heat transferring medium supply amount upper limit value and its more than when, then after the predetermined time, starting subtracts
Warm program.
The value range of predetermined time therein can be 2min~5min.The upper limit of default heat transferring medium supply amount therein
Value is the peak flow values of heat collector heat transferring medium supply amount.
When heat transferring medium is water, which is specifically included: implementing spray desuperheating processing to the steam in heat collector；
The vapor (steam) temperature of real-time measurement heat collector outlet；When the vapor (steam) temperature of heat collector outlet reaches the temperature threshold value of steam, adjust
The position of the corresponding reflecting mirror of whole heat collector, so that the light of reflecting mirror aggregation deviates heat collector.Start the mesh of the desuperheat program
Be in order to avoid heat collector outlet vapor (steam) temperature it is excessively high, later use can not be carried out, when by the desuperheat program handle after
The steam of required temperature can be generated, then carries out later use, for example, carrying out steam-electric power by steam turbine.If by should
Desuperheat program processing after, heat collector outlet vapor (steam) temperature it is still excessively high, that is, when having reached the temperature threshold value of steam, then in order to
It avoids the vapor (steam) temperature in heat collector from further increasing, then needs to adjust the position of the corresponding reflecting mirror of heat collector, so that reflection
The light of mirror aggregation no longer converges on heat collector, so as to avoid heat collector from receiving solar energy, so that thermal-arrest
Vapor (steam) temperature in device gradually cools down.
The value range of the temperature threshold value of steam therein is 490 DEG C~510 DEG C, it is preferable that the temperature threshold of steam
Value is 500 DEG C of
When heat transferring medium is conduction oil or fuse salt, which is specifically included: the outlet of real-time measurement heat collector
Heat exchange medium temperature；When the heat exchange medium temperature of heat collector outlet reaches the temperature threshold value of heat transferring medium, heat collector is adjusted
The position of corresponding reflecting mirror, so that the light of reflecting mirror aggregation deviates heat collector.The temperature threshold value of heat transferring medium therein
Value range be 390 DEG C~400 DEG C, it is preferable that the temperature threshold value of heat transferring medium be 395 DEG C.When heat transferring medium is thermally conductive
The desuperheat program started when oil or fuse salt is different from the above-mentioned desuperheat program when heat transferring medium is water, when heat transferring medium is to lead
When hot oil or fuse salt, if the heat exchange medium temperature of heat collector outlet reaches the temperature threshold value of heat transferring medium, in order to avoid
Vapor (steam) temperature in heat collector further increases, then needs to adjust the position of the corresponding reflecting mirror of heat collector, so that reflecting mirror is poly-
The light of collection no longer converges on heat collector, so as to avoid heat collector from receiving solar energy, so that in heat collector
Heat exchange medium temperature gradually cool down.
Embodiment six
According to the content that example IV or embodiment five describe, according to the temperature change of the heat transferring medium of heat collector outlet,
Gradually adjust the heat transferring medium supply amount of heat collector, it is notable that during gradually adjusting heat transferring medium supply amount,
Environmental condition locating for heat collector and its corresponding reflecting mirror is likely to occur variation, i.e., when heat collector and its corresponding reflecting mirror
The practical sun normal direction direct solar radiation value of local environment is in reasonable floating range, then needs the heat transferring medium for stopping the heat collector
The adjusting of supply amount, and open the shaping modes under nominal situation.
This gives the specific adjusting methods under nominal situation, as shown in figure 15, photo-thermal provided in this embodiment
The control method of the heat transferring medium supply amount of power station heat collector, further includes:
Step C, judge whether the variation of sun normal direction direct solar radiation value meets closing adjusting condition, when determining no, then
Step S1 to step S5 is carried out, when determining is, then stops executing step S1 to step S5, carries out step D；
Step D, according to the sun normal direction direct solar radiation value DNI of current time real-time measurementIt is real, adjust heat transferring medium supply
Amount.
Step C wherein specifically: measure the sun normal direction direct solar radiation value DNI at original moment0, real-time measurement sun method
To direct solar radiation value DNIBecome；As real-time measurement sun normal direction direct solar radiation value DNIBecomeWith the sun normal direction direct solar radiation at original moment
Value DNI0Ratio be a, as 0.7≤a≤1.3, then stop execute step S1 to step S5, carry out step D；When this condition
When being unsatisfactory for, then step S1 is carried out to step S5.
As shown in figure 16, when heat transferring medium be water when, wherein step D specifically include:
Step R1, according to current time sun normal direction direct solar radiation value DNIIt is realCalculate the effective of moment heat collector absorption
Thermal power；
Step R2, the feed temperature and feed pressure of the moment heat collector are measured, and calculates current Enthalpy of Feed Water；
Step R3, the steam pressure of the outlet vapor of the moment heat collector is measured, and is obtained dry full under the steam pressure
With vapor (steam) temperature value；
Step R4, the theoretical enthalpy of dry saturated steam is calculated by the steam pressure and the dry saturated steam temperature value；
Step R5, the available thermal power meter absorbed using Enthalpy of Feed Water, the theoretical enthalpy of dry saturated steam and heat collector
Calculate the theoretical confluent of the moment heat collector；
Step R6, the practical confluent of heat collector described in the moment is measured, and adjusts the confluent of the heat collector.
As shown in figure 17, wherein step R1, according to current time sun normal direction direct solar radiation value DNIIt is realWhen calculating this
The available thermal power that heat collector absorbs is carved, specifically:
Step R11, according to moment sun normal direction direct solar radiation value DNIIt is real, calculate the theoretical thermal power that heat collector absorbs；
Step R12, it calculates the available heat power efficiency after reflecting mirror and calculates the heat of heat collector effectively absorbed
Effect rate；
Step R13, theoretical thermal power, the available heat power efficiency sum aggregate after reflecting mirror absorbed using heat collector
The heat power efficiency of hot device effectively absorbed calculates the available thermal power of moment heat collector absorption.
As shown in figure 18, when heat transferring medium is conduction oil or fuse salt, step D specifically:
Step Y1, according to current time sun normal direction direct solar radiation value DNIIt is realCalculate the effective of moment heat collector absorption
Thermal power；
Step Y2, the temperature of the heat transferring medium of the moment heat collector inlet and the pressure of heat transferring medium are measured, and is counted
Calculate the enthalpy of the heat transferring medium of input；
Step Y3, the temperature of the heat transferring medium in the moment heat collector exit and the pressure of heat transferring medium are measured, and is counted
Calculate the enthalpy of the heat transferring medium of output；
Step Y4, it is absorbed using the enthalpy of the heat transferring medium of input, the enthalpy of the heat transferring medium of output and heat collector
Available thermal power calculates the theoretical supply amount of the heat transferring medium of the moment heat collector；
Step Y5, the effective supply amount of the heat transferring medium of the moment heat collector is measured, and adjusts the heat transferring medium of heat collector
Supply amount.
As shown in figure 19, wherein step Y1, according to current time sun normal direction direct solar radiation value DNIIt is realWhen calculating this
The available thermal power that heat collector absorbs is carved, specifically:
Step Y11, according to moment sun normal direction direct solar radiation value DNIIt is real, calculate the theoretical thermal power that heat collector absorbs；
Step Y12, it calculates the available heat power efficiency after reflecting mirror and calculates the heat of heat collector effectively absorbed
Effect rate；
Step Y13, theoretical thermal power, the available heat power efficiency sum aggregate after reflecting mirror absorbed using heat collector
The heat power efficiency of hot device effectively absorbed calculates the available thermal power of moment heat collector absorption.
Wherein, step R11, the theoretical thermal power of the heat collector absorption in step Y11 refers in current sun normal direction direct projection
Under radiation value, heat collector is all reflexed to without any loss and is all absorbed by it the hot merit of solar irradiation
Rate.
But in a practical situation, sunlight loses irradiation energy in transmission process because being influenced by various factors,
Two aspects can be substantially divided into.
One is to calculate the available heat power efficiency after reflecting mirror.Available hot merit effect after reflecting mirror
Rate refers under current sun normal direction direct solar radiation value, and sunlight is from being incident on reflecting mirror and reflect sunlight by reflecting mirror
To heat collector evaporator section this during, heat power efficiency that sunlight can actually utilize after losing.It is specific influence because
The mounting structure and its self performance of element and reflecting mirror have great relationship.
Secondly to calculate the heat power efficiency of heat collector effectively absorbed.Calculate heat collector the heat power efficiency effectively absorbed be
After referring to that the solar irradiation after reflecting mirror reflects is incident upon heat collector, heat collector, which can convert sunlight to, can actually absorb
And the heat power efficiency value of the thermal energy utilized.Specific influence factor and the structure and its self performance of heat collector, which have, greatly closes
System.
The control method of the heat transferring medium supply amount for the heat collector that above-mentioned steps D is provided is when heat collector and its corresponding anti-
The regulative mode that mirror is under nominal situation is penetrated, according to sun normal direction direct solar radiation value, in time, effectively adjusts heat collector
Heat transferring medium supply amount to promote the stability of the heat transferring medium in heat collector exit, and then guarantees heat collector exit
The quality of heat transferring medium.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；To the greatest extent
Invention is explained in detail referring to aforementioned embodiments for pipe, those skilled in the art should understand that: its according to
The technical solution that can so record to aforementioned embodiments is modified, or is equally replaced to part of technical characteristic
It changes；And these are modified or replaceed, the essence for embodiment of the present invention technical solution that it does not separate the essence of the corresponding technical solution
Mind and range.
Claims (32)
1. a kind of control method of the heat transferring medium supply amount of photo-thermal power station heat collector characterized by comprising
Step A, judge whether the variation of sun normal direction direct solar radiation value meets starting adjusting condition, when judgement is then to be walked
Rapid S1；
The step A includes:
Step A1, the sun normal direction direct solar radiation value DNI at original moment is measured0；
Step A2, real-time measurement sun normal direction direct solar radiation value DNIBecome；
Step A3, as the sun normal direction direct solar radiation value DNI of real-time measurementBecomeWith the sun normal direction direct solar radiation value at original moment
DNI0Ratio be a, and when 0.4≤a≤0.68, then determine it is and to carry out step S1；
Step S1, the heat transferring medium supply amount Q of initial time heat collector is measured1With the heat exchange of the outlet of heat collector described in initial time
Medium temperature T1；
Step S2, after a predetermined period, the heat exchange medium temperature T of the outlet of heat collector described in current time is measured2, and with
The heat exchange medium temperature of heat collector outlet before one predetermined period makes the difference to obtain the heat transferring medium of the heat collector outlet
Temperature change value Δ T；
Step S3, judge that the temperature change value Δ T of the heat transferring medium of the heat collector outlet then keeps one as Δ T >=0
Heat transferring medium supply amount before predetermined period then carries out step S4 as Δ T < 0；
Step S4, the heat transferring medium supply amount before a predetermined period is reduced into preset value；
Step S5, return step S2.
2. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 1, which is characterized in that
The step A further include:
Step B1, the heat exchange medium temperature T of the heat collector outlet is measuredIt is real；
Step B2, when 0.7≤a≤1.3, while the heat exchange medium temperature T of the heat collector outlet of real-time measurementIt is realLower reduction of speed
When degree is greater than the first preset temperature fall off rate, then judgement is, and carries out step S1.
3. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 2, which is characterized in that
The first preset temperature fall off rate is F DEG C/min, and the value range of F is 2~5.
4. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 1, which is characterized in that
Between the step S4 and the step S5 further include:
Step C, current heat transferring medium supply amount Q is measuredBecome；
Work as QBecomeWhen the lower limit value of not up to default heat transferring medium supply amount, then step S5 is carried out；
Work as QBecomeReach default heat transferring medium supply amount lower limit value and its it is following when, then after the predetermined time, close the collection
The outlet valve of hot device.
5. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 4, which is characterized in that
The lower limit value of the default heat transferring medium supply amount is the heat transferring medium supply amount Q of initial time heat collector1K%, the value of K
Range is 5~20.
6. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 4, which is characterized in that
The value range of the predetermined time is 2min~5min.
7. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 1, which is characterized in that
Further include:
Step D, judge whether the variation of sun normal direction direct solar radiation value meets closing adjusting condition, when determining no, then carry out
The step S1 to step S5 then stops executing the step S1 to step S5, carries out step E when determining is；
Step E, according to the sun normal direction direct solar radiation value DNI of current time real-time measurementIt is real, adjust heat transferring medium supply amount.
8. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 7, which is characterized in that
The step D specifically:
Measure the sun normal direction direct solar radiation value DNI at original moment0, real-time measurement sun normal direction direct solar radiation value DNIBecome, survey in real time
Measure the heat exchange medium temperature T of the heat collector outletIt is real；
As the sun normal direction direct solar radiation value DNI of real-time measurementBecomeWith the sun normal direction direct solar radiation value DNI at original moment0Ratio
More than or equal to 0.7, while TIt is realRate of change less than the second preset temperature fall off rate when, then stop executing the step S1
To step S5, the step E is carried out；
When either condition is unsatisfactory for, then the step S1 to step S5 is carried out.
9. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 7 or 8, feature exist
In the heat transferring medium is water, the step E specifically:
According to current time sun normal direction direct solar radiation value DNIIt is realCalculate the available thermal power of moment heat collector absorption；
The feed temperature and feed pressure of heat collector described in the moment are measured, and calculates current Enthalpy of Feed Water；
The steam pressure of the outlet vapor of heat collector described in the moment is measured, and obtains the dry saturated steam temperature under the steam pressure
Angle value；
The theoretical enthalpy of dry saturated steam is calculated by the steam pressure and the dry saturated steam temperature value；
The available thermal power meter absorbed using the Enthalpy of Feed Water, the theoretical enthalpy of the dry saturated steam and the heat collector
Calculate the theoretical confluent of heat collector described in the moment；
The practical confluent of heat collector described in the moment is measured, and adjusts the confluent of the heat collector.
10. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 9, feature exist
In described according to current time sun normal direction direct solar radiation value DNIIt is realThe available thermal power of moment heat collector absorption is calculated,
Specifically:
According to moment sun normal direction direct solar radiation value DNIIt is real, calculate the theoretical thermal power that the heat collector absorbs；
It calculates the available heat power efficiency after reflecting mirror and calculates the heat power efficiency of the heat collector effectively absorbed；
Utilize the theoretical thermal power of heat collector absorption, the available heat power efficiency and the collection after reflecting mirror
The heat power efficiency of hot device effectively absorbed calculates the available thermal power of the absorption of heat collector described in the moment.
11. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 7 or 8, feature
It is, the heat transferring medium is conduction oil or fuse salt, the step E specifically:
According to current time sun normal direction direct solar radiation value DNIIt is realCalculate the available thermal power of the absorption of heat collector described in the moment；
The temperature of the heat transferring medium of heat collector inlet and the pressure of heat transferring medium described in the moment are measured, and calculates input
Heat transferring medium enthalpy；
The temperature of the heat transferring medium in heat collector exit and the pressure of heat transferring medium described in the moment are measured, and calculates output
Heat transferring medium enthalpy；
It is absorbed using the enthalpy of the heat transferring medium of the input, the enthalpy of the heat transferring medium of the output and the heat collector
Available thermal power calculates the theoretical supply amount of the heat transferring medium of heat collector described in the moment；
The effective supply amount of the heat transferring medium of heat collector described in the moment is measured, and adjusts the confession of the heat transferring medium of the heat collector
To amount.
12. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 11, feature exist
In described according to current time sun normal direction direct solar radiation value DNIIt is realThe available thermal power of moment heat collector absorption is calculated,
Specifically:
According to moment sun normal direction direct solar radiation value DNIIt is real, calculate the theoretical thermal power that the heat collector absorbs；
It calculates the available heat power efficiency after reflecting mirror and calculates the heat power efficiency of the heat collector effectively absorbed；
Utilize the theoretical thermal power of heat collector absorption, the available heat power efficiency and the collection after reflecting mirror
The heat power efficiency of hot device effectively absorbed calculates the available thermal power of the absorption of heat collector described in the moment.
13. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 8, feature exist
In the second preset temperature fall off rate is G DEG C/min, and the value range of G is 2~5.
14. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to any one of claims 1 to 8,
It is characterized in that, the predetermined period is Hmin, the value range of H is 2~5.
15. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to any one of claims 1 to 8,
It is characterized in that, the preset value is the heat transferring medium supply amount Q of initial time heat collector1J%, the value range of J is 5~
15。
16. a kind of control method of the heat transferring medium supply amount of photo-thermal power station heat collector characterized by comprising
Step A, judge whether the variation of sun normal direction direct solar radiation value meets starting adjusting condition, when judgement is then to be walked
Rapid S1；
The step A includes:
Step A1, original moment sun normal direction direct solar radiation value DNI is measured0；
Step A2, real-time measurement sun normal direction direct solar radiation value DNIBecome, and the heat transferring medium of the outlet of heat collector described in real-time measurement
Temperature T becomes；
Step A3, as the sun normal direction direct solar radiation value DNI of real-time measurementBecomeWith the sun normal direction direct solar radiation value at original moment
DNI0Ratio be less than or equal to a, and 0.4≤a≤0.68, while real-time measurement heat collector outlet heat transferring medium temperature
Spend TBecomeRate of climb when being greater than the first preset temperature climbing speed, then determine it is and to carry out step S1；
Step S1, the heat transferring medium supply amount Q of initial time heat collector is measured1With the heat exchange of the outlet of heat collector described in initial time
Medium temperature T1；
Step S2, after a predetermined period, the heat exchange medium temperature T of the outlet of heat collector described in current time is measured2, and with
The heat exchange medium temperature of heat collector outlet before one predetermined period makes the difference to obtain the heat transferring medium of the heat collector outlet
Temperature change value Δ T；
Step S3, the heat exchange medium temperature changing value Δ T for judging heat collector outlet, as Δ T≤0, then keep one it is pre-
If the heat transferring medium supply amount before the period then carries out step S4 as Δ T 0；
Step S4, the heat transferring medium supply amount before a predetermined period is increased into preset value；
Step S5, return step S2.
17. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 16, feature exist
In the first preset temperature climbing speed is F DEG C/min, and the value range of F is 2~5.
18. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 16, feature exist
In between the step S4 and the step S5 further include:
Step B, current heat transferring medium supply amount Q is measuredBecome；
Work as QBecomeWhen the upper limit value of not up to default heat transferring medium supply amount, then step S5 is carried out；
Work as QBecomeReach default heat transferring medium supply amount upper limit value and its more than when, then after the predetermined time, start desuperheat journey
Sequence.
19. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 18, feature exist
In the heat transferring medium is water, and the desuperheat program includes:
Spray desuperheating processing is implemented to the steam in the heat collector；
The vapor (steam) temperature of the outlet of heat collector described in real-time measurement；
When the vapor (steam) temperature of heat collector outlet reaches the temperature threshold value of steam, the corresponding reflection of the heat collector is adjusted
The position of mirror, so that the light of reflecting mirror aggregation deviates the heat collector.
20. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 18, feature exist
In the heat transferring medium is conduction oil or fuse salt, and the desuperheat program includes:
The heat exchange medium temperature of the outlet of heat collector described in real-time measurement；
When the heat exchange medium temperature of heat collector outlet reaches the temperature threshold value of heat transferring medium, the heat collector pair is adjusted
The position for the reflecting mirror answered, so that the light of reflecting mirror aggregation deviates the heat collector.
21. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 18, feature exist
In the upper limit value of the default heat transferring medium supply amount is the peak flow values of the heat collector heat transferring medium supply amount.
22. the heat transferring medium of photo-thermal power station heat collector according to claim 18 supplies amount control method, which is characterized in that
The value range of the predetermined time is 2min~5min.
23. the heat transferring medium of photo-thermal power station heat collector according to claim 19 supplies amount control method, which is characterized in that
The value range of the temperature threshold value of the steam is 490 DEG C~510 DEG C.
24. the heat transferring medium of photo-thermal power station heat collector according to claim 20 supplies amount control method, which is characterized in that
The value range of the temperature threshold value of the heat transferring medium is 390 DEG C~400 DEG C.
25. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 16, feature exist
In, further includes:
Step C, judge whether the variation of sun normal direction direct solar radiation value meets closing adjusting condition, when determining no, then carry out
The step S1 to step S5 then stops executing the step S1 to step S5, carries out step D when determining is；
Step D, according to the sun normal direction direct solar radiation value DNI of current time real-time measurementIt is real, adjust heat transferring medium supply amount.
26. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 25, feature exist
In the step C specifically:
Measure the sun normal direction direct solar radiation value DNI at original moment0, real-time measurement sun normal direction direct solar radiation value DNIBecome；
As real-time measurement sun normal direction direct solar radiation value DNIBecomeWith the sun normal direction direct solar radiation value DNI at original moment0Ratio be
A then stops executing the step S1 to step S5, carries out the step D as 0.7≤a≤1.3；
When this condition is unsatisfactory for, then the step S1 to step S5 is carried out.
27. the control method of the heat transferring medium supply amount of the photo-thermal power station heat collector according to claim 25 or 26, special
Sign is that the heat transferring medium is water, step D specifically:
According to current time sun normal direction direct solar radiation value DNIIt is realCalculate the available thermal power of the absorption of heat collector described in the moment；
The feed temperature and feed pressure of heat collector described in the moment are measured, and calculates current Enthalpy of Feed Water；
The steam pressure of the outlet vapor of heat collector described in the moment is measured, and obtains the dry saturated steam temperature under the steam pressure
Angle value；
The theoretical enthalpy of dry saturated steam is calculated by the steam pressure and the dry saturated steam temperature value；
The available thermal power meter absorbed using the Enthalpy of Feed Water, the theoretical enthalpy of the dry saturated steam and the heat collector
Calculate the theoretical confluent of heat collector described in the moment；
The practical confluent of heat collector described in the moment is measured, and adjusts the confluent of the heat collector.
28. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 27, feature exist
In described according to current time sun normal direction direct solar radiation value DNIIt is realCalculate effective hot merit of the absorption of heat collector described in the moment
Rate, specifically:
According to moment sun normal direction direct solar radiation value DNIIt is realCalculate the theoretical thermal power that the heat collector absorbs；
It calculates the available heat power efficiency after reflecting mirror and calculates the heat power efficiency of the heat collector effectively absorbed；
Utilize the theoretical thermal power of heat collector absorption, the available heat power efficiency and the collection after reflecting mirror
The heat power efficiency of hot device effectively absorbed calculates the available thermal power of the absorption of heat collector described in the moment.
29. the control method of the heat transferring medium supply amount of the photo-thermal power station heat collector according to claim 25 or 26, special
Sign is that the heat transferring medium is conduction oil or fuse salt, the step D specifically:
According to current time sun normal direction direct solar radiation value DNIIt is realCalculate the available thermal power of the absorption of heat collector described in the moment；
The temperature of the heat transferring medium of heat collector inlet and the pressure of heat transferring medium described in the moment are measured, and calculates input
Heat transferring medium enthalpy；
The temperature of the heat transferring medium in heat collector exit and the pressure of heat transferring medium described in the moment are measured, and calculates output
Heat transferring medium enthalpy；
It is absorbed using the enthalpy of the heat transferring medium of the input, the enthalpy of the heat transferring medium of the output and the heat collector
Available thermal power calculates the theoretical supply amount of the heat transferring medium of heat collector described in the moment；
The effective supply amount of the heat transferring medium of heat collector described in the moment is measured, and adjusts the confession of the heat transferring medium of the heat collector
To amount.
30. the control method of the heat transferring medium supply amount of photo-thermal power station heat collector according to claim 29, feature exist
In described according to current time sun normal direction direct solar radiation value DNIIt is realCalculate effective hot merit of the absorption of heat collector described in the moment
Rate, specifically:
According to moment sun normal direction direct solar radiation value DNIIt is real, calculate the theoretical thermal power that the heat collector absorbs；
It calculates the available heat power efficiency after reflecting mirror and calculates the heat power efficiency of the heat collector effectively absorbed；
Utilize the theoretical thermal power of heat collector absorption, the available heat power efficiency and the collection after reflecting mirror
The heat power efficiency of hot device effectively absorbed calculates the available thermal power of the absorption of heat collector described in the moment.
31. the controlling party of the heat transferring medium supply amount of 6 to 26 described in any item photo-thermal power station heat collectors according to claim 1
Method, which is characterized in that the predetermined period is Hmin, and the value range of H is 2~5.
32. the controlling party of the heat transferring medium supply amount of 6 to 26 described in any item photo-thermal power station heat collectors according to claim 1
Method, which is characterized in that the preset value is the confluent Q of initial time heat collector1J%, the value range of J is 5~15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510782894.9A CN106705460B (en) | 2015-11-16 | 2015-11-16 | A kind of control method of the heat transferring medium supply amount of photo-thermal power station heat collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510782894.9A CN106705460B (en) | 2015-11-16 | 2015-11-16 | A kind of control method of the heat transferring medium supply amount of photo-thermal power station heat collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106705460A CN106705460A (en) | 2017-05-24 |
| CN106705460B true CN106705460B (en) | 2019-08-16 |
Family
ID=58931614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510782894.9A Active CN106705460B (en) | 2015-11-16 | 2015-11-16 | A kind of control method of the heat transferring medium supply amount of photo-thermal power station heat collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106705460B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033020A (en) * | 2020-09-10 | 2020-12-04 | 广州卓邦科技有限公司 | Solar thermal power generation header with heat preservation effect |
| CN112836333B (en) * | 2020-11-16 | 2024-06-21 | 苏州西热节能环保技术有限公司 | Method and device for calculating power generation efficiency of photo-thermal power station and readable storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1892147A (en) * | 2005-07-05 | 2007-01-10 | 新疆新能源股份有限公司 | Direct-flow type solar water-heating system and its water-flow control method |
| CN201476427U (en) * | 2009-09-03 | 2010-05-19 | 施国庆 | Radiation refrigeration measuring and controlling instrument of flat-plate solar collector |
| CN201909466U (en) * | 2010-12-17 | 2011-07-27 | 益科博能源科技（上海）有限公司 | Solar energy concentration flow control system |
| CN102425865A (en) * | 2011-11-07 | 2012-04-25 | 深圳市联讯创新工场科技开发有限公司 | Solar heat collecting device |
| CN102445010A (en) * | 2010-10-08 | 2012-05-09 | 益科博能源科技（上海）有限公司 | Temperature control method and device for heat collection system |
| CN102455064A (en) * | 2010-10-26 | 2012-05-16 | 益科博能源科技（上海）有限公司 | Solar heat energy gathering system |
| CN102692088A (en) * | 2011-03-24 | 2012-09-26 | 益科博能源科技（上海）有限公司 | Flow control method for solar heat collector system |
| CN103282726A (en) * | 2010-12-15 | 2013-09-04 | 株式会社日立制作所 | Cooling system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58222317A (en) * | 1982-06-21 | 1983-12-24 | Toshiba Corp | Temperature controller of solar heat collector |
| JPH0670530B2 (en) * | 1987-01-27 | 1994-09-07 | 工業技術院長 | Solar heating steam generation system |
-
2015
- 2015-11-16 CN CN201510782894.9A patent/CN106705460B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1892147A (en) * | 2005-07-05 | 2007-01-10 | 新疆新能源股份有限公司 | Direct-flow type solar water-heating system and its water-flow control method |
| CN201476427U (en) * | 2009-09-03 | 2010-05-19 | 施国庆 | Radiation refrigeration measuring and controlling instrument of flat-plate solar collector |
| CN102445010A (en) * | 2010-10-08 | 2012-05-09 | 益科博能源科技（上海）有限公司 | Temperature control method and device for heat collection system |
| CN102455064A (en) * | 2010-10-26 | 2012-05-16 | 益科博能源科技（上海）有限公司 | Solar heat energy gathering system |
| CN103282726A (en) * | 2010-12-15 | 2013-09-04 | 株式会社日立制作所 | Cooling system |
| CN201909466U (en) * | 2010-12-17 | 2011-07-27 | 益科博能源科技（上海）有限公司 | Solar energy concentration flow control system |
| CN102692088A (en) * | 2011-03-24 | 2012-09-26 | 益科博能源科技（上海）有限公司 | Flow control method for solar heat collector system |
| CN102425865A (en) * | 2011-11-07 | 2012-04-25 | 深圳市联讯创新工场科技开发有限公司 | Solar heat collecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106705460A (en) | 2017-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5400969B2 (en) | Gas turbine system, control device for gas turbine system, and control method for gas turbine system | |
| CN109812796A (en) | Participate in the solar energy assisted coal fired electricity generation system and its control method of primary frequency modulation | |
| CN106468477B (en) | Solar heat pump water heater and control method | |
| CN112528542B (en) | Photo-thermal power generation system dynamic modeling method considering heat collector working mode and control method | |
| JP6033405B2 (en) | Solar heat collection system | |
| CN105222214B (en) | Solar thermal collector and air source heat pump combined heat water system and control method | |
| CN106705460B (en) | A kind of control method of the heat transferring medium supply amount of photo-thermal power station heat collector | |
| CN106769137B (en) | Paraboloid trough type solar heat-collector heat performance measuring apparatus and hot property prediction technique | |
| WO2024109327A1 (en) | Integrated energy operation control method and integrated energy system based on multi-energy complementation | |
| CN110986388B (en) | Intelligent solar photovoltaic photo-thermal collector and control method thereof | |
| CN106769136B (en) | Paraboloid trough type solar heat-collector thermal efficiency dynamic measurement device and measurement method | |
| CN205690714U (en) | Solar light-heat power-generation heat storage and exchange system | |
| Duan et al. | Performance analysis of a tower solar collector‐aided coal‐fired power generation system | |
| CN111927724B (en) | Design method for heat collection field of partitioned trough type solar thermal power generation system | |
| CN105423576A (en) | Overheat protection device and overheat protection method of heat absorber for solar energy photothermal conversion | |
| CN105447325B (en) | A kind of solar concentrating photovoltaic photothermal cogeneration system cost and the computational methods of payoff period | |
| JP5422057B2 (en) | Gas turbine system and control method thereof | |
| CN203178062U (en) | Mobile tester for heat-collecting efficiency of trough-type solar collector | |
| Fayath et al. | Prediction of thermal characteristics for solar water heater | |
| JP2010285926A (en) | Turbine device and control method thereof | |
| JPWO2013080386A1 (en) | Solar thermal combined cycle power plant | |
| CN106500369B (en) | The control method and its system of the heat transferring medium supply amount of photo-thermal power station heat collector | |
| CN203906196U (en) | Electric-heat-tracing Fresnel direct-steam solar heat power generating device | |
| CN106500370B (en) | A kind of the water supply amount control method and its system of photo-thermal power station heat collector | |
| CN110375447B (en) | Method and system for measuring efficiency of water-based working medium heat absorber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |