CN214145777U - Solar photo-thermal power generation system - Google Patents
Solar photo-thermal power generation system Download PDFInfo
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- CN214145777U CN214145777U CN202022747953.8U CN202022747953U CN214145777U CN 214145777 U CN214145777 U CN 214145777U CN 202022747953 U CN202022747953 U CN 202022747953U CN 214145777 U CN214145777 U CN 214145777U
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- 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
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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- 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
- Y02E10/47—Mountings or tracking
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- 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
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a solar photo-thermal power generation system, which relates to the technical field, and is characterized in that a heliostat is controlled to track the sun to rotate so as to reflect sunlight to a heat collector, steam generated by the heat collector enables a steam turbine to drive a generator to generate power, and the output of the generator is connected with an alternating current power grid; steam generated by the heat exchange device enters a steam turbine and is output by an alternating current through a generator to be connected to a grid for power generation, a steam outlet of the steam turbine is connected with an inlet of a condenser, the steam is expanded in the turbine to work and condense and then enters the condenser, and the condensed steam enters a cycle again through a heater; meanwhile, the electric energy, the temperature and the environment are detected through the electric energy monitoring module, a worker can monitor and maintain the solar photo-thermal power generation system more conveniently, and the heliostat is a heliostat capable of tracking and controlling, so that the defects that the heliostat of the existing solar photo-thermal power generation system needs to be adjusted manually and cannot be monitored well are overcome.
Description
Technical Field
The utility model belongs to the technical field of solar energy power generation, especially, relate to a solar photothermal power system.
Background
The solar photo-thermal power generation is a renewable energy application technology different from photovoltaic power generation, a large-scale array mirror surface and other heat collecting devices are used for collecting solar heat energy, a heat transfer medium is heated at a high temperature, the medium generates high-temperature steam after passing through a heat exchanger, and then a steam turbine generator is pushed to work, so that the aim of generating electric energy is fulfilled. The surplus heat in the daytime can be stored in the heat storage medium, and the heat storage can still be used for keeping normal power generation under the condition of no sunlight.
By the end of 2015, the accumulated installed capacity of the global photo-thermal project approaches 5GW, and the composite increase rate of the accumulated installed capacity of the photo-thermal project reaches 38.32% in 2008-2015. The installed capacity was increased by about 460MW in 2015, with one project in morocco increased by 160MW and two projects in south africa increased by 150 MW.
The installed capacity of the photo-thermal power station in the United states and Spain is up to 87% of the global occupation ratio, the installed capacity of the newly added photo-thermal power station in the two countries in recent two years is accelerated slowly, from the recent planning, the countries in south Africa, Morocco, the middle east, India, China and the like are moved to project planning and construction of rapidly-developed industry channels, and the installed capacity acceleration of the global photo-thermal power station still can be maintained at the current higher level.
However, the heliostat of the existing solar photo-thermal power generation system needs to be adjusted manually, and the working condition cannot be monitored well, so that a heliostat which is more convenient to control and a monitored solar photo-thermal power generation system are needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a solar photothermal power system to the heliostat of having solved current solar photothermal power system needs manual adjustment, and the shortcoming of monitoring that can not be fine.
In order to achieve the above object, the utility model provides a solar photothermal power system, include:
a heliostat capable of automatically tracking the sun to rotate or remotely controlled to reflect sunlight;
a cleaning tool disposed on the heliostat for cleaning the heliostat;
the heat collecting tower is fixed on the ground;
a heat collector disposed at the top of the heat collection tower;
an inlet of the heat exchange device is connected with a working medium outlet of the heat collector;
the steam inlet of the steam turbine is connected with the working medium outlet of the heat collector;
the generator is connected with the shaft of the steam turbine, so that the steam turbine and the generator form a shafting, and the steam turbine drives the generator to generate electricity;
an AC power grid connected to an output of the generator;
a condenser, an inlet of which is connected with a steam outlet of the steam turbine;
a DC electric pump, the inlet of which is connected with the outlet of the condenser;
the inlet of the heater is connected with the outlet of the direct current electric pump, and the outlet of the heater is connected with the working medium inlet of the heat collector;
a heat storage system;
the heat conduction oil pipeline is connected with the heat storage system and then connected with the heat collector in parallel;
the steam generation direct current electric furnace is connected with the heat collector in parallel, namely one end of the steam generation direct current electric furnace is arranged between the heat storage system and the steam turbine, and the other end of the steam generation direct current electric furnace is arranged between the heat conduction oil pipeline and the heater;
a solar cell panel for converting sunlight into electricity;
the input end of the direct current distributor is electrically connected with the solar panel, the output end of the direct current distributor is respectively connected with the heat storage system, the heat conduction oil pipeline, the steam generation direct current electric furnace and the heater, and the output end of the direct current distributor is also connected with the inverter and enters the alternating current power grid after the inverter performs reactive compensation;
the electric energy monitoring module is connected with an alternating current power grid connected with the output end of the generator and is used for monitoring and transmitting the electric quantity generated by the solar photo-thermal power generation system;
the main controller is electrically connected with the heliostat, the electric energy monitoring module and the generator respectively and is used for controlling and transmitting signals to the heliostat, the electric energy monitoring module and the generator; and
and the main communication module is connected with the main controller and is used for signal transmission.
Further, the heliostat includes:
the inner part of the base is of a hollow structure;
the horizontal rotating mechanism is fixedly arranged at the top of the base;
the bottom end of the vertical bracket is connected with the middle of the top surface of the horizontal rotating mechanism;
the hoop is arranged at the middle upper part of the vertical bracket;
the middle part of the bottom surface of the main supporting plate is fixed at the top end of the vertical bracket through a triangular connecting piece, so that the main supporting plate rotates at the top of the vertical bracket;
the reflecting mirror surface is fixed on the top surface of the main supporting plate through a plurality of purlins;
one end of the front support rod is connected with the front end of the bottom surface of the main support plate through a triangular connecting piece, the other end of the front support rod is connected with one side of the hoop, and the front support rod is a linear driver capable of axially stretching;
one end of the rear supporting rod is connected with the rear end of the bottom surface of the main supporting plate through a triangular connecting piece, the other end of the rear supporting rod is connected with the other side of the hoop, and the rear supporting rod is a linear driver capable of axially stretching;
a light intensity detection device which is provided at a place capable of receiving solar light without a barrier; and
the heliostat controller is respectively connected with a horizontal driving motor, a front supporting rod, a rear supporting rod, a light intensity detection device and a main communication module of the horizontal rotating mechanism, the heliostat controller controls the horizontal rotating mechanism to rotate according to the data of the light intensity detection device, the horizontal rotating mechanism rotates to enable the whole main supporting plate to drive the reflecting mirror surface to rotate horizontally, and the main supporting plate and the reflecting mirror surface rotate in a vertical plane formed by the vertical support, the front supporting rod and the rear supporting rod by controlling the extension and retraction of the front supporting rod or the rear supporting rod, so that the heliostat can automatically track the sun to rotate, and the heliostat controller is used for carrying out signal transmission with the main communication module.
Further, the mirror surface includes:
a first mirror surface;
a second mirror surface, one side of which is rotatably connected with the left side of the first mirror surface;
the first stepping motor is fixed in front of the first mirror surface, a shaft of the first stepping motor is connected with the second mirror surface, the first stepping motor is in communication connection with the heliostat controller, and the shaft of the first stepping motor drives the second mirror surface to rotate to the first mirror surface;
a third mirror surface, one side of which is rotatably connected with the right side of the first mirror surface; and
the second stepping motor is fixed in front of the first mirror surface, a shaft of the second stepping motor is connected with the third mirror surface, the second stepping motor is in communication connection with the heliostat controller, and the shaft of the second stepping motor is controlled by the heliostat controller to drive the third mirror surface to rotate to the first mirror surface.
Further, the length of the first mirror surface is equal to the length of the second mirror surface and the length of the third mirror surface, the width of the first mirror surface is equal to the sum of the width of the second mirror surface and the width of the third mirror surface, and the upper surface of the first mirror surface can be completely covered after the second mirror surface and the third mirror surface are rotatably accommodated.
Further, the heliostat control system further comprises a first sub-communication module which is electrically connected with the main communication module and the heliostat controller.
Further, the power monitoring module includes:
the high-voltage electromagnetic induction energy obtaining device is arranged on a transmission line connecting the output end of the generator and the alternating current power grid and is used for obtaining the voltage output by the generator;
the voltage measuring device is connected with the high-voltage electromagnetic induction energy-taking device and is used for measuring the voltage acquired by the high-voltage electromagnetic induction energy-taking device;
the temperature detection module is arranged on a device to be detected;
the video monitoring module is arranged on the heat collection tower;
the detection controller is connected with the temperature detection module, the voltage measurement device and the video monitoring module and is used for receiving and processing data transmitted by the high-voltage electromagnetic induction energy taking device, the temperature detection module and the video monitoring module; and
and the second sub communication module is connected with the detection controller and is used for transmitting the data of the detection controller.
And the display screen is connected with the detection controller and arranged below the accessory of the generator or the heat collection tower.
Further, the power supply circuit further comprises a rectifying circuit, which is arranged between the power supply CT and the detection controller and used for rectifying and outputting the current detected by the power supply CT.
Furthermore, the device also comprises a wind power generation device, and the output end of the wind power generation device is connected with the heater.
Furthermore, the main controller adopts a ZigBee module.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a solar photothermal power system, through controlling heliostat tracking sun to rotate and reflecting sunlight to the heat collector, the working medium outlet of the heat collector is connected with the steam inlet of the steam turbine through the heat exchange device, the generated steam makes the steam turbine drive the generator to generate electricity, the output of the generator is connected with the AC power grid; steam generated by the heat exchange device enters a steam turbine and is output by an alternating current through a generator to be connected to the grid for power generation, a steam outlet of the steam turbine is connected with an inlet of a condenser, an outlet of the condenser is connected with inlets of a direct current motor pump, a heater and a heat collector in sequence, namely, the steam enters the condenser after expanding, doing work and condensing in the turbine, and enters the cycle again after condensing; the output of the solar cell panel is connected with the input of the direct current distributor, the output of the direct current distributor is divided into two parts, one part is connected with a heat storage system of the photo-thermal power station, the heat storage system and a heat conduction oil pipeline are insulated, or connected with a steam generation direct current electric furnace, the steam generation direct current electric furnace can directly generate steam to enter the photo-thermal power station when solar energy is scattered and radiated, or connected with a direct current electric pump, the direct current electric pump is directly used for pressurizing condensed water or drainage and the like, the other part enters an alternating current power grid after reactive compensation through an inverter, and the electricity of electric equipment of the photovoltaic power station can be maintained at night or in cloudy days. Meanwhile, the electric energy, the temperature and the environment are detected through the electric energy monitoring module, and a worker can monitor and maintain the solar photo-thermal power generation system more conveniently.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a solar photo-thermal power generation system of the present invention;
fig. 2 is a schematic structural view of a heliostat of the invention;
FIG. 3 is a schematic structural diagram of a mirror surface according to the present invention;
FIG. 4 is a schematic structural view of the triangular connecting member of the present invention;
wherein: 1. a heliostat; 2. a heat collection system; 3. a heat storage system; 4. a heat conductive oil conduit; 5. a steam generating direct current electric furnace; 6. a steam turbine; 7. a generator; 8. a condenser; 9. a DC electric pump; 10. a heater; 11. a solar panel; 12. a direct current distributor; 13. an inverter; 14. an alternating current grid; 15. a main controller; 16. a high-voltage electromagnetic induction energy-taking device; 17. a voltage measuring device; 18. a second sub-communication module; 19. a detection controller; 20. a video monitoring module; 21. a display screen; 22. a temperature detection module; 23. a primary communication module; 24. a base; 25. a horizontal rotation mechanism; 26. a vertical support; 27. hooping; 28. a main supporting plate; 29. a mirror surface; 30. a front support bar; 31. a rear support bar; 32. a triangular connector; 33. a purlin; 34. a first mirror surface; 35. a second mirror surface; 36. a first stepper motor; 37. a third mirror surface; 38. a second stepper motor.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of the feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1, the solar photo-thermal power generation system provided by the utility model comprises: the device comprises a heliostat 1, a cleaning tool, a heat collecting tower, a heat collector, a heat exchange device, a steam turbine 6, a generator 7, a condenser 8, a direct current electric pump 9, a heater 10, a heat conducting oil pipeline 4, a steam generation direct current electric furnace 5, a solar cell panel 11, a direct current distributor 12, an electric energy monitoring module and a main controller 15.
The heliostat 1 can automatically track the sun to rotate or be remotely controlled and is used for reflecting sunlight; the heliostats 1 are arranged in a circular and outward dispersed manner by taking the bottom of the heat collection tower as a circle;
the cleaning tool is arranged on the heliostat 1 and used for cleaning the heliostat 1;
the heat collecting tower is fixed on the ground;
the heat collector is arranged at the top of the heat collecting tower and used for collecting sunlight reflected by the heliostat 1, and the heat collector adopts a two-stage total reflection involute type solar heat collector;
an inlet of the heat exchange device is connected with a working medium outlet of the heat collector, the heat exchange device is used for generating superheated saturated steam, and the heat exchange device adopts a heat exchanger;
a steam inlet of the steam turbine 6 is connected with a working medium outlet of the heat collector;
the generator 7 is connected with the shaft of the steam turbine 6, for example, through flange connection, so that the steam turbine 6 and the generator 7 form a shaft system, the vibration value of the shaft can be reduced, and the steam turbine 6 drives the generator 7 to generate electricity;
the alternating current network 14 is connected with the output end of the generator 7;
the inlet of the condenser 8 is connected with the steam outlet of the steam turbine 6;
the inlet of the direct current electric pump 9 is connected with the outlet of the condenser 8;
the inlet of the heater 10 is connected with the outlet of the direct current electric pump 9, the outlet of the heater 10 is connected with the working medium inlet of the heat collector, namely, after steam is condensed under the action of turbine expansion and then passes through the condenser 8, the steam is condensed and enters the heat collector through the direct current electric pump 9 and the heater 10 to be circulated again;
the heat conducting oil pipeline 4 is connected with the heat storage system 3 and then connected with the heat collector in parallel;
the steam generation direct current electric furnace 5 is connected with the heat collector in parallel, namely one end of the steam generation direct current electric furnace 5 is positioned between the heat storage system 3 and the steam turbine 6, and the other end of the steam generation direct current electric furnace 5 is positioned between the heat conduction oil pipeline 4 and the heater 10;
the solar cell panel 11 is used to convert sunlight into electricity;
the input end of a direct current distributor 12 is electrically connected with a solar panel 11, the output end of the direct current distributor 12 is respectively connected with a heat storage system 3, a heat conducting oil pipeline 4, a steam generating direct current electric furnace 5 and a heater 10, the heat storage system 3 and the heat conducting oil pipeline 4 are insulated during power supply, the steam generating direct current electric furnace 5 is directly supplied with power to generate steam, the steam enters a solar photo-thermal power generation system, a direct current electric pump 9 is supplied with power to pressurize condensed water or drained water, and the like, the output end of the direct current distributor 12 is also connected with an inverter 13, and the steam enters an alternating current power grid 14 after reactive compensation of the inverter 13;
the electricity generated by the solar thermal power generation system can be completely integrated into a power grid, the electricity of the power station is provided by the solar panel 11, and the solar thermal power generation and the photovoltaic power generation can be complemented in advantages by the combination mode, so that the photovoltaic direct current is directly utilized, the loss of an intermediate link is reduced, the integral energy conversion efficiency is improved, and the solar energy resource is more effectively utilized;
the electric energy monitoring module is connected with the output end of the generator 7 and is used for monitoring and transmitting the electric quantity generated by the solar photo-thermal power generation system;
the main controller 15 is electrically connected with the heliostat 1, the electric energy monitoring module and the generator 7 respectively, and the main controller 15 is used for processing data of the heliostat 1, the electric energy monitoring module and the generator 7 and controlling the heliostat 1;
the main communication module 23 is electrically connected to the main controller 15, and performs signal transmission between the main communication module 23 and the sub communication modules thereof. The main controller 15 adopts a raspberry group, a 51 single-chip microcomputer and the like, the raspberry group is adopted in the embodiment, the communication module adopts a ZigBee module, the first sub-communication module and the second sub-communication module 18 adopt sub ZigBee nodes, and communication between the main communication module 23 and the sub communication module is realized through the ZigBee module and the sub ZigBee node modules.
The solar photo-thermal power generation system also comprises a receiver of a secondary reflector, and the receiver of the secondary reflector is arranged at the top of the heat collecting tower above the heat collector and is used for reflecting sunlight at more angles; the support of the secondary light-gathering system is arranged in the direction of the lowest field utilization rate of the heliostat 1 under the latitude condition of the application area of the solar photo-thermal power generation system.
As shown in fig. 2, the heliostat 1 includes: the heliostat 1 comprises a base 24, a horizontal rotating mechanism 25, a vertical support 26, a hoop 27, a main support plate 28, a reflector surface 29, a front support rod 30, a rear support rod 31, a light intensity detection device, a first sub communication module and a heliostat 1 controller.
The inside of the base 24 is a hollow structure;
the horizontal rotating mechanism 25 is fixedly arranged on the top of the base 24;
the bottom end of the vertical bracket 26 is connected with the middle of the top surface of the horizontal rotating mechanism 25, and the vertical bracket 26 is vertically arranged right above the base 24;
the hoop 27 is arranged at the middle upper part of the vertical bracket 26;
the middle of the bottom surface of the main support plate 28 is fixed to the top end of the vertical support 26 by a triangular connector 32 so that the main support plate 28 rotates on the top of the vertical support 26;
the reflector 29 is fixed on the top surface of the main supporting plate 28 through a plurality of purlins 33;
one end of the front supporting rod 30 is connected with the front end of the bottom surface of the main supporting plate 28 through a triangular connecting piece 32, the other end of the front supporting rod 30 is rotatably connected with one side of the hoop 27, and the front supporting rod 30 is a linear driver capable of axially stretching; in the embodiment, the linear driver is connected with the screw rod through an output shaft of the motor, and the motor can drive the screw rod to rotate;
one end of the rear supporting rod 31 is connected with the rear end of the bottom surface of the main supporting plate 28 through a triangular connecting piece 32, the other end of the rear supporting rod 31 is movably connected with the other side of the hoop 27, and the rear supporting rod 31 is a linear driver capable of axially stretching;
the light intensity detection device is arranged at a place which can receive the solar light without blocking, such as the edge of the reflecting mirror 29, the reflecting mirror 29 or a cleaning tool, and the like, and can be arranged as required;
the controller of the heliostat 1 is respectively connected with a horizontal driving motor of a horizontal rotating mechanism 25, a front supporting rod 30, a rear supporting rod 31 and a light intensity detection device, the controller of the heliostat 1 is arranged in a base 24, the model adopted in the embodiment is MCN420, the controller of the heliostat 1 controls the horizontal rotating mechanism 25 to rotate according to the data of the light intensity detection device, the horizontal rotating mechanism 25 rotates to enable a main supporting plate 28 to drive a reflecting mirror surface 29 to rotate horizontally, and the main supporting plate 28 and the reflecting mirror surface 29 rotate in a vertical plane formed by a vertical support 26, the front supporting rod 30 and the rear supporting rod 31 by controlling the extension and retraction of the front supporting rod 30 or the rear supporting rod 31, so that the heliostat 1 can automatically track the sun to rotate.
The first sub-communication module is electrically connected with the heliostat 1 controller, and transmits the signals received and processed by the heliostat 1 controller to the main control module through the sub-communication module.
With continued reference to FIG. 2, the mirror face 29 includes: a first mirror 34, a second mirror 35, a first stepping motor 36, a third mirror 37, and a second stepping motor 38.
One side of the second mirror 35 is rotatably connected to the left side of the first mirror 34;
the first stepping motor 36 is fixed in front of the first mirror surface 34, the shaft of the first stepping motor 36 is connected with the second mirror surface 35, the first stepping motor 36 is in communication connection with the heliostat 1 controller, and the second mirror surface 35 is driven to rotate to the first mirror surface 34 through the shaft of the first stepping motor 36;
one side of the third mirror 37 is rotatably connected to the right side of the first mirror 34;
the second stepping motor 38 is fixed in front of the first mirror surface 34, the shaft of the second stepping motor 38 is connected with the third mirror surface 37, the second stepping motor 38 is in communication connection with the heliostat 1 controller, and the shaft of the second stepping motor 38 is controlled by the heliostat 1 controller to drive the third mirror surface 37 to rotate to the first mirror surface 34.
At this time, the cleaning device is disposed at the rear end of the heliostat 1, and the height of the cleaning device is higher than the widths of the first mirror surface 34 and the second mirror surface 35, so that the rotation of the first mirror surface 34 and the second mirror surface 35 is not hindered. And controlling the cleaning device to clean the three mirror surfaces as required.
The length of the first mirror surface 34 is equal to the length of the second mirror surface 35 and the length of the third mirror surface 37, the width of the first mirror surface 34 is equal to the sum of the width of the second mirror surface 35 and the width of the third mirror surface 37, and the upper surface of the first mirror surface 34 can be completely covered after the second mirror surface 35 and the third mirror surface 37 are rotatably accommodated.
The mirror may be a curved-surface condensing mirror, a silver-coated film, a glass-coated silver mirror, or the like, which is provided behind the heliostat 1 single-courtyard mirror surface shape control device.
With continued reference to fig. 1, the power monitoring module includes: the high-voltage electromagnetic induction energy-taking device 16, the voltage measuring device 17, the temperature detection module 22, the video monitoring module 20, the detection controller 19 and the second sub-communication module 18.
The high-voltage electromagnetic induction energy obtaining device 16 is arranged on a transmission line connecting the output end of the generator 7 with the alternating current power grid 14 and used for obtaining the voltage output by the generator 7, in the embodiment, the high-voltage electromagnetic induction energy obtaining device 16 adopts a GYQN high-voltage electromagnetic induction energy obtaining device 16, and the model is TLTP-II;
the voltage measuring device 17 is connected with the high-voltage electromagnetic induction energy-taking device 16, and the voltage measuring device 17 is used for measuring the voltage obtained by the high-voltage electromagnetic induction energy-taking device 16;
the temperature detection module 22 is arranged on a device to be detected, such as the generator 7, the heat collector and the like;
the video monitoring module 20 is arranged on the heat collecting tower, in the embodiment, the video monitoring module 20 adopts a camera, and the camera can be arranged at a required place as required;
the detection controller 19 is respectively connected with the temperature detection module 22, the voltage measurement device 17 and the video monitoring module 20, and is used for receiving and processing data transmitted by the high-voltage electromagnetic induction energy-taking device 16, the temperature detection module 22 and the video monitoring module 20;
the second sub-communication module 18 is connected to the detection controller 19, and is configured to transmit data of the detection controller 19 to the main communication module 23. And receiving and processing the data detected by the electric energy monitoring module through the main control module.
The solar photo-thermal power generation system further comprises a display screen 21, wherein the display screen 21 is connected with the detection controller 19 and arranged below an accessory of the power generator 7 or the heat collection tower, and the display screen 21 is convenient for workers to check on site.
The solar photo-thermal power generation system further comprises a wind power generation device, the output end of the wind power generation device is connected with the heater 10, when the weather is rainy or snowy, the heater 10 works through the wind power generation device, and the heater 10 works through wind power generation.
It is right the utility model discloses solar photothermal power system's theory of operation carries out the detailed description to make technical staff in the field more understand the utility model discloses:
after the solar photo-thermal power generation system is installed, the control of a single heliostat 1 is explained, the main controller 15 is communicated with the first sub-communication module through the main communication module 23, and the controller of the heliostat 1 is controlled to control the expansion of the front supporting rod 30 and the rear supporting rod 31 and the selection of the horizontal rotating mechanism 25 according to the light intensity detection device, so that the reflecting mirror surface 29 of the heliostat 1 can be reflected to the heat collector. By communicating with the main communication module 23 through the plurality of first sub-communication modules, the disadvantage that the workload of manually adjusting the heliostat 1 is large and inaccurate can be reduced. Or directly adjusting the angle of the heliostat 1 according to the data of the light intensity detection device by the heliostat 1 controller.
After all the heliostats 1 rotate, the solar photo-thermal power generation system works, solar radiation heat absorbed by the heliostats 1 is focused and enters a heat collector, a working medium outlet of the heat collector is connected with a steam inlet of a steam turbine 6 through a heat exchange device, the generated steam enables the steam turbine 6 to drive a generator 7 to generate power, and the output of the generator 7 is connected with an alternating current power grid 14;
steam generated by a heat exchange device enters a steam turbine 6 and outputs alternating current through a generator 7 to be connected to the grid for power generation, a steam outlet of the steam turbine 6 is connected with an inlet of a condenser 8, an outlet of the condenser 8 is connected with inlets of a direct current motor pump 9, a heater 10 and a heat collector in sequence, namely, the steam enters the condenser 8 after expanding, doing work and condensing in the turbine, and enters the cycle again through the heater 10 after condensing;
the output of the solar cell panel 11 is connected with the input of the direct current distributor 12, the output of the direct current distributor 12 is divided into two parts, one part is connected with the heat storage system 3 of the photo-thermal power station, the heat storage system 3 and the heat conducting oil pipeline 4 are insulated, or connected with the steam generation direct current electric furnace 5, the steam generation direct current electric furnace 5 can directly generate steam to enter the photo-thermal power station when solar energy is scattered and radiated, or connected with the direct current electric pump 9, the direct current electric pump 9 is directly used for pressurizing condensed water or drainage and the like, the other part enters the alternating current power grid 14 after reactive compensation through the inverter 13, and the energy storage of the photo-thermal power station or the alternating current of the heat storage system 3 can maintain electricity utilization of electric equipment of photovoltaic power generation parts at night or in cloudy days.
The electric energy monitoring module acquires voltage through the high-voltage electromagnetic induction de-energizing device, the voltage is detected through the electric measuring device and then is transmitted to the detection controller 19, then is transmitted to the main communication module 23 through the second sub-communication module 18, the main communication module 23 is transmitted to the main controller 15, and the main communication module 23 transmits the processed voltage to other terminals or a background and the like after the main controller 15 processes the voltage; meanwhile, the data of the video monitoring module 20 of the temperature detection module 22 is also transmitted to the main communication module 23 through the second sub-communication module 18 in real time, and the maximum temperature value can be set as required to alarm through an external alarm module.
In addition, the main controller 15 can also receive or transmit data through a cable, the main controller 15 is also connected with a weather forecast system, a heliostat 1 controller can be set, when receiving a sand storm, hail, snow and other severe environments of the weather forecast system, the heliostat 1 controller controls a shaft of the first stepping motor 36 to drive the second mirror surface 35 to rotate to the first mirror surface 34 and controls a shaft of the second stepping motor 38 to drive the third mirror surface 37 to rotate to the first mirror surface 34, and therefore the first mirror surface 34, the second mirror surface 35 and the third mirror surface 37 are protected.
The above disclosure is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or modifications within the technical scope of the present invention, and all should be covered by the scope of the present invention.
Claims (9)
1. A solar photo-thermal power generation system is characterized in that: the method comprises the following steps:
a heliostat capable of automatically tracking the sun to rotate or remotely controlled to reflect sunlight;
a cleaning tool disposed on the heliostat for cleaning the heliostat;
the heat collecting tower is fixed on the ground;
a heat collector disposed at the top of the heat collection tower;
an inlet of the heat exchange device is connected with a working medium outlet of the heat collector;
the steam inlet of the steam turbine is connected with the working medium outlet of the heat collector;
the generator is connected with the shaft of the steam turbine, so that the steam turbine and the generator form a shafting, and the steam turbine drives the generator to generate electricity;
an AC power grid connected to an output of the generator;
a condenser, an inlet of which is connected with a steam outlet of the steam turbine;
a DC electric pump, the inlet of which is connected with the outlet of the condenser;
the inlet of the heater is connected with the outlet of the direct current electric pump, and the outlet of the heater is connected with the working medium inlet of the heat collector;
a heat storage system;
the heat conduction oil pipeline is connected with the heat storage system and then connected with the heat collector in parallel;
the steam generation direct current electric furnace is connected with the heat collector in parallel, namely one end of the steam generation direct current electric furnace is arranged between the heat storage system and the steam turbine, and the other end of the steam generation direct current electric furnace is arranged between the heat conduction oil pipeline and the heater;
a solar cell panel for converting sunlight into electricity;
the input end of the direct current distributor is electrically connected with the solar panel, the output end of the direct current distributor is respectively connected with the heat storage system, the heat conduction oil pipeline, the steam generation direct current electric furnace and the heater, and the output end of the direct current distributor is also connected with the inverter and enters the alternating current power grid after the inverter performs reactive compensation;
the electric energy monitoring module is connected with an alternating current power grid connected with the output end of the generator and is used for monitoring and transmitting the electric quantity generated by the solar photo-thermal power generation system;
the main controller is electrically connected with the heliostat, the electric energy monitoring module and the generator respectively and is used for controlling and transmitting signals to the heliostat, the electric energy monitoring module and the generator; and
and the main communication module is connected with the main controller and is used for signal transmission.
2. The solar photothermal power system according to claim 1, wherein: the heliostat includes:
the inner part of the base is of a hollow structure;
the horizontal rotating mechanism is fixedly arranged at the top of the base;
the bottom end of the vertical bracket is connected with the middle of the top surface of the horizontal rotating mechanism;
the hoop is arranged at the middle upper part of the vertical bracket;
the middle part of the bottom surface of the main supporting plate is fixed at the top end of the vertical bracket through a triangular connecting piece, so that the main supporting plate rotates at the top of the vertical bracket;
the reflecting mirror surface is fixed on the top surface of the main supporting plate through a plurality of purlins;
one end of the front support rod is connected with the front end of the bottom surface of the main support plate through a triangular connecting piece, the other end of the front support rod is connected with one side of the hoop, and the front support rod is a linear driver capable of axially stretching;
one end of the rear supporting rod is connected with the rear end of the bottom surface of the main supporting plate through a triangular connecting piece, the other end of the rear supporting rod is connected with the other side of the hoop, and the rear supporting rod is a linear driver capable of axially stretching;
a light intensity detection device which is provided at a place capable of receiving solar light without a barrier; and
the heliostat controller is respectively connected with a horizontal driving motor, a front supporting rod, a rear supporting rod, a light intensity detection device and a main communication module of the horizontal rotating mechanism, the heliostat controller controls the horizontal rotating mechanism to rotate according to the data of the light intensity detection device, the horizontal rotating mechanism rotates to enable the main supporting plate to drive the reflecting mirror surface to rotate horizontally, the main supporting plate and the reflecting mirror surface rotate in a vertical plane formed by the vertical support, the front supporting rod and the rear supporting rod by controlling the front supporting rod or the rear supporting rod to realize that the heliostat automatically tracks the sun to rotate, and the heliostat controller carries out signal transmission with the main communication module.
3. The solar photothermal power system according to claim 2, wherein: the mirror surface includes:
a first mirror surface;
a second mirror surface, one side of which is rotatably connected with the left side of the first mirror surface;
the first stepping motor is fixed in front of the first mirror surface, a shaft of the first stepping motor is connected with the second mirror surface, the first stepping motor is in communication connection with the heliostat controller, and the shaft of the first stepping motor drives the second mirror surface to rotate to the first mirror surface;
a third mirror surface, one side of which is rotatably connected with the right side of the first mirror surface; and
the second stepping motor is fixed in front of the first mirror surface, a shaft of the second stepping motor is connected with the third mirror surface, the second stepping motor is in communication connection with the heliostat controller, and the shaft of the second stepping motor is controlled by the heliostat controller to drive the third mirror surface to rotate to the first mirror surface.
4. The solar photothermal power system according to claim 3, wherein: the length of the first mirror surface is equal to the length of the second mirror surface and the length of the third mirror surface, the width of the first mirror surface is equal to the sum of the width of the second mirror surface and the width of the third mirror surface, and the upper surface of the first mirror surface can be completely covered after the second mirror surface and the third mirror surface are rotatably accommodated.
5. The solar photothermal power system according to claim 3, wherein: the heliostat control system further comprises a first sub-communication module which is electrically connected with the main communication module and the heliostat controller.
6. The solar photothermal power system according to claim 1, wherein: the electric energy monitoring module includes:
the high-voltage electromagnetic induction energy obtaining device is arranged on a transmission line connecting the output end of the generator and the alternating current power grid and is used for obtaining the voltage output by the generator;
the voltage measuring device is connected with the high-voltage electromagnetic induction energy-taking device and is used for measuring the voltage acquired by the high-voltage electromagnetic induction energy-taking device;
the temperature detection module is arranged on a device to be detected;
the video monitoring module is arranged on the heat collection tower;
the detection controller is connected with the temperature detection module, the voltage measurement device and the video monitoring module and is used for receiving and processing data transmitted by the high-voltage electromagnetic induction energy taking device, the temperature detection module and the video monitoring module; and
and the second sub communication module is connected with the detection controller and is used for transmitting the data of the detection controller.
7. The solar photothermal power system according to claim 6, wherein: the solar heat collector further comprises a display screen, wherein the display screen is connected with the detection controller and arranged below the accessories of the generator or the heat collection tower.
8. The solar photothermal power system according to claim 1, wherein: the wind power generation device is also included, and the output end of the wind power generation device is connected with the heater.
9. The solar photothermal power system according to claim 1, wherein: the main controller adopts a ZigBee module.
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|---|---|---|---|
| CN202022747953.8U CN214145777U (en) | 2020-11-25 | 2020-11-25 | Solar photo-thermal power generation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115183211A (en) * | 2022-08-25 | 2022-10-14 | 云南电网有限责任公司电力科学研究院 | Steam supply system |
| CN115183211B (en) * | 2022-08-25 | 2024-11-08 | 云南电网有限责任公司电力科学研究院 | Steam supply system |
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2020
- 2020-11-25 CN CN202022747953.8U patent/CN214145777U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115183211A (en) * | 2022-08-25 | 2022-10-14 | 云南电网有限责任公司电力科学研究院 | Steam supply system |
| CN115183211B (en) * | 2022-08-25 | 2024-11-08 | 云南电网有限责任公司电力科学研究院 | Steam supply system |
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Effective date of registration: 20241009 Address after: Room 505, block C, building 1, gonggu, Anji Wall Street, 189 Fazhan Avenue, Nanning, Guangxi 530000 Patentee after: GUANGXI YANGSHENG NEW ENERGY CO.,LTD. Country or region after: China Address before: 530001 No.702, 7th floor, block B, No.1 standard factory building, 189 Fazhan Avenue, XiXiangTang District, Nanning City, Guangxi Zhuang Autonomous Region Patentee before: Guangxi Jikuan Energy Technology Co.,Ltd. Country or region before: China |