CN220395917U - Power generation system - Google Patents

Abstract

The application provides a power generation system, which comprises a cold working medium tank, a plurality of heat collecting components, a hot working medium tank, a steam generating component, a steam compressor and a first steam turbine generator, wherein the heat collecting components comprise a heat collecting pipe rack and a plurality of heat collecting pipes, and each heat collecting pipe is arranged on the heat collecting pipe rack side by side; the cold working medium tank is communicated with each heat collecting tube, and the cold working medium in the cold working medium tank is output to the heat collecting tubes to form a first heat working medium, and each heat collecting tube is communicated with the heat working medium tank; the hot working medium tank is communicated with the steam generation assembly so that the first hot working medium is output to the steam generation assembly; the steam generation assembly is communicated with the steam compressor so that the steam is pressurized in the steam compressor; the vapor compressor is in communication with the first turbine generator such that the pressurized vapor drives the first turbine generator to generate electricity. The power generation system of the utility model can make the sand wind pass between each heat collecting pipe in the sand wind area, effectively avoids sand dust to remain on the surface of the heat collecting assembly, ensures the absorptivity of light to improve generating efficiency.

Description

Power generation system

Technical Field

The application relates to the technical field of new energy power generation, in particular to a power generation system.

Background

In recent years, the low-carbon concept has become an important component of harmony and symbiosis between people and nature, and in order to further reduce the use of high-emission energy substances, the power generation mode has been changed from traditional coal power generation to new energy power generation. In the new energy power generation, the solar photo-thermal power generation has the dual functions of peak regulation power supply and energy storage, and is an effective means for safely and reliably replacing the traditional energy.

At present, solar photo-thermal power generation mainly utilizes a large-scale array paraboloid or dish-shaped mirror surface to collect solar heat energy, steam is provided through a heat exchange device, and a turbine generator is combined to achieve the purpose of power generation.

However, in the windy and sandy area, sand and dust are easy to remain on the mirror surface for collecting solar energy, so that the light absorptivity is reduced, and the power generation efficiency is affected.

Disclosure of Invention

The application provides a power generation system for solve among the prior art in the windy sand area, sand dust is attached to the collector surface easily, reduces the absorptivity of light, influences the problem of generating efficiency.

The utility model provides a power generation system, including cold working medium jar, a plurality of heat collecting assembly, hot working medium jar, steam generation subassembly, vapor compressor and first turbine generator.

The heat collecting assembly comprises a heat collecting pipe frame and a plurality of heat collecting pipes, wherein each heat collecting assembly is communicated with each other, each heat collecting pipe is arranged on the heat collecting pipe frame side by side and communicated with each other, and the heat collecting pipes are used for absorbing solar energy so as to improve the temperature of the heat collecting pipes.

The cold working medium tank is communicated with each heat collecting tube, and outputs the cold working medium in the cold working medium tank to the heat collecting tubes to form a first heat working medium, and each heat collecting tube is communicated with the heat working medium tank to output the first heat working medium to the heat working medium tank.

The hot working medium tank is communicated with the steam generation assembly so that the first hot working medium is output to the steam generation assembly to evaporate water into steam.

The steam generation assembly communicates with the steam compressor to pressurize the steam in the steam compressor.

The vapor compressor is in communication with the first turbine generator such that the pressurized vapor drives the first turbine generator to generate electricity.

In one possible implementation manner, in the power generation system provided by the application, the heat collecting pipe frame is enclosed to form a triangular prism, the heat collecting pipe is arranged on one side surface of the triangular prism, and one surface of the heat collecting pipe frame, on which the heat collecting pipe is arranged, is obliquely arranged relative to the ground.

In one possible implementation manner, the power generation system provided by the application further comprises a cold working medium input pipe and a hot working medium output pipe, wherein the cold working medium input pipe comprises an input main pipe and a plurality of input branch pipes, the input main pipe is communicated with each input branch pipe, the input main pipe is communicated with the cold working medium tank, and the input branch pipes are communicated with the lower ends of the heat collecting pipes.

The thermal working medium output pipe comprises an output main pipe and a plurality of output branch pipes, wherein the output main pipe is communicated with each output branch pipe, the output main pipe is communicated with the thermal working medium tank, and the output branch pipes are communicated with the upper ends of the heat collecting pipes.

In one possible implementation, the power generation system provided herein further includes at least one temperature sensor, at least one control valve, and at least one check valve.

The temperature sensor and the control valve are arranged on the thermal working medium output pipe, the temperature sensor is used for detecting the temperature of working medium in the thermal working medium output pipe, the temperature sensor is electrically connected with the control valve, and when the temperature is greater than the preset temperature, the control valve is opened so that the first thermal working medium is output into the thermal working medium tank.

The check valve is arranged on at least one of the cold working medium input pipe and the hot working medium output pipe.

In one possible implementation, the power generation system provided herein includes a steam generator in communication with a steam compressor, and a superheater including a first heating element for increasing a temperature of the first steam generator and a first steam generator.

The heat working medium tank is communicated with the first heating piece, the first heat working medium is subjected to heat exchange in the first heating piece to form a second heat working medium, and water in the first steam generating piece is heated and evaporated to steam.

The steam generator is used for storing steam and water, the first steam output port of the first steam generating piece is communicated with the second steam input port of the steam generator so as to output steam into the steam generator, and the second water output port of the steam generator is communicated with the first water input port of the first steam generating piece so as to output water into the first steam generating piece.

In one possible implementation, the power generation system provided herein, the steam generation assembly further includes a reheater including a second heating element and a second steam generation element, the second heating element configured to increase a temperature of the second steam generation element.

The second heating piece is communicated with the first heating piece, the second heat working medium is subjected to heat exchange in the second heating piece to form a third heat working medium, and water in the second steam generating piece is heated and evaporated to steam.

The third steam output port of the second steam generating part is communicated with the second steam input port so as to output steam into the steam generator, and the second water output port is communicated with the third water input port of the second steam generating part so as to output water into the second steam generating part.

In one possible implementation manner, the power generation system provided by the application further comprises a water supply preheater, wherein the water supply preheater comprises a third heating piece and a heating piece, and the third heating piece is used for increasing the temperature of water in the heating piece.

The second heating piece is communicated with the third heating piece, the third heat working medium is subjected to heat exchange in the third heating piece to form a cold working medium, and the third heating piece is communicated with the cold working medium tank so as to output the cold working medium into the cold working medium tank.

In one possible implementation manner, the power generation system provided by the application further comprises a second steam turbine generator, wherein the second steam turbine generator is communicated with the first steam turbine generator, and the second steam turbine generator is driven to generate power after the steam drives the first steam turbine generator.

In one possible implementation manner, the power generation system provided by the application further comprises a condenser and a condensate water tank, wherein the second steam turbine generator is communicated with a fourth steam input port of the condenser, and the steam drives the second steam turbine generator to generate power and then is cooled by the condenser to form liquid water.

The fourth water output port of the condenser is communicated with the condensate water tank so as to output water into the condensate water tank, and the condensate water tank is respectively communicated with the second water input port of the steam generator and the fifth water input port of the heating piece so as to output water into the steam generator and the heating piece.

In one possible implementation, the power generation system provided herein further includes an electric heater electrically connected to the photovoltaic power generation region and the wind power generation region.

The cold working medium tank is communicated with the electric heater, the cold working medium is subjected to heat exchange in the electric heater to form a first hot working medium, and the electric heater is communicated with the hot working medium tank.

The utility model provides a pair of power generation system, including cold working medium jar, a plurality of collection thermal assembly, hot working medium jar, steam generation subassembly, vapor compressor and first steam turbine generator, through with cold working medium jar and collection thermal assembly intercommunication, collection thermal assembly and vapor compressor intercommunication, vapor compressor and first steam turbine generator intercommunication convert solar energy into the electric energy, carry out solar photo-thermal power generation. The heat collecting assembly comprises a heat collecting pipe frame and a plurality of heat collecting pipes, the heat collecting pipes are arranged on the heat collecting pipe frame side by side, a certain gap is kept between the heat collecting pipes, the surfaces of the heat collecting pipes are smooth, sand and dust can pass through the gap between the heat collecting pipes under the blowing of wind in windy and sandy weather, and therefore a large amount of sand and dust attached to the surfaces of the heat collecting pipes can be effectively avoided, the light absorption rate of the heat collecting assembly is guaranteed, and the power generation efficiency of a power generation system is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a power generation system according to an embodiment of the present application;

FIG. 2 is a state diagram of the power generation system of FIG. 1 in use;

FIG. 3 is a schematic illustration of the heat collection assembly of FIG. 1 in a power generation system;

FIG. 4 is a schematic diagram of the steam generating assembly of FIG. 1 in communication with a hot working fluid pump, a steam compressor, a condensate tank, and a feedwater preheater;

FIG. 5 is a schematic view of the superheater of FIG. 4;

FIG. 6 is a schematic view of the steam generator of FIG. 4;

FIG. 7 is a schematic view of the reheater of FIG. 4;

fig. 8 is a schematic diagram of the feed water preheater in fig. 1.

Reference numerals illustrate:

100-a power generation system;

110-a cold working medium tank; 111-a cold working medium pump;

120-a heat collection assembly; 121-a heat collecting pipe rack; 1211-support legs; 122-heat collecting pipes; 123-a cold working medium input pipe; 1231-input main pipe; 1232-input manifold; 124-hot working medium output tube; 1241-an output main pipe; 1242-output branch; 125-a temperature sensor; 126-control valve; 127-check valve;

130-a hot working fluid tank; 131-a hot working fluid pump;

140-a steam generation assembly; 141-superheater; 1411-a first heating element; 1412-first steam generator; 1412 a-a first steam outlet; 1412 b-a first water input port; 142-a steam generator; 1421-a second steam inlet; 1422-a second water outlet; 1423-a second water input; 1424-a second steam outlet; 143-reheater; 1431-a second heating element; 1432-a second steam generator; 1432 a-a third steam outlet; 1432 b-a third water input port;

150-a vapor compressor;

160-a first turbine generator; 161-a second turbo generator;

170-a feed water preheater; 171-a third heating element; 172-heating elements; 1721-fifth water input ports; 1722-a fifth water outlet; 173-user;

180-condenser; 181-fourth steam input; 182-fourth water outlet; 183-condensate tank;

190-an electric heater; 191-photovoltaic power generation zone; 192-wind power generation area; 193-take-off column; 194-collecting lines.

Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

As demonstrated by the background technology, when the prior art is used for photo-thermal power generation, the parabolic or dish-shaped mirror surface is used for collecting solar heat energy, the area of the parabolic or dish-shaped mirror surface is larger, and in a windy sand area, sand and dust are blown down on the surface of the collector and are difficult to fall off, so that a large amount of sand and dust are attached to the surface of the collector, thereby reducing the light absorption rate and affecting the power generation efficiency of a photo-thermal power generation system.

To above-mentioned technical problem, this application embodiment provides a power generation system, including cold working medium jar, a plurality of heat collecting assembly, hot working medium jar, steam generation subassembly, vapor compressor and first turbine generator, through with cold working medium jar and heat collecting assembly intercommunication, heat collecting assembly and vapor compressor intercommunication, vapor compressor and first turbine generator intercommunication convert solar energy into the electric energy, carry out solar energy photo-thermal power generation. The heat collecting assembly comprises a heat collecting pipe frame and a plurality of heat collecting pipes, wherein the heat collecting pipes are arranged on the heat collecting pipe frame side by side, a certain gap is reserved between the heat collecting pipes, sand and dust can pass through the gap in a windy and sandy environment, so that a large amount of sand and dust is effectively prevented from being attached to the heat collecting pipes, the light absorption rate is guaranteed, and the power generation efficiency and the stability of a power generation system are improved.

The following describes the technical solution of the present application and how the technical solution of the present application solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings:

referring to fig. 1 and 3, a power generation system 100 of an embodiment of the present application includes a cold working fluid tank 110, a plurality of heat collection assemblies 120, a hot working fluid tank 130, a steam generation assembly 140, a steam compressor 150, and a first turbine generator 160.

The heat collecting assembly 120 includes a heat collecting tube frame 121 and a plurality of heat collecting tubes 122, each heat collecting assembly 120 is connected to each other, each heat collecting tube 122 is disposed on the heat collecting tube frame 121 side by side, and each heat collecting tube 122 is connected to each other, and the heat collecting tube 122 is used for absorbing solar energy to increase the temperature of the heat collecting tube 122.

The cold working medium tank 110 is communicated with each heat collecting tube 122, and outputs the cold working medium in the cold working medium tank 110 to the heat collecting tubes to form a first heat working medium, and each heat collecting tube is communicated with the heat working medium tank 130 to output the first heat working medium to the heat working medium tank 130.

The hot working fluid tank 130 communicates with the steam generating assembly 140 such that the first hot working fluid is output into the steam generating assembly 140 to evaporate water into steam.

The steam generation assembly 140 communicates with the steam compressor 150 to pressurize the steam in the steam compressor 150.

The vapor compressor 150 communicates with the first turbine generator 160 such that the pressurized vapor drives the first turbine generator 160 to generate electricity.

In a specific implementation, the cold working medium tank 110 is used for storing a cold working medium, the cold working medium can be pumped out of the cold working medium tank 110 by the cold working medium pump 111 and output to the heat collecting tube 122, the cold working medium exchanges heat in the heat collecting tube 122, and the temperature rises to form a first heat working medium. The first thermal working medium is extracted from the heat collecting pipe 122 by the thermal working medium pump 131 and is output to the thermal working medium tank 130. The thermal medium tank 130 may store the first thermal medium, thereby ensuring that thermal energy can be used to generate power in a period with less sunlight, such as at night or in overcast and rainy days, and further ensuring long-term stability and persistence of power generation.

When power generation is required, the first thermal working medium in the thermal working medium tank 130 is output to the steam generation assembly 140, and the water in the steam generation assembly 140 is heated to evaporate into steam. The generated steam is output to the steam compressor 150 for pressurization treatment, and the pressurized steam is output from the steam compressor 150 to the first turbine generator 160 to drive the first turbine generator 160 to generate electricity. Through the process, the heat energy is converted into mechanical energy, and then the mechanical energy is converted into electric energy to finish power generation. The rotation speed of the first turbine generator 160 can be increased by driving the power generation after pressurizing the steam, thereby improving the power generation efficiency.

In this application, collector subassembly 120 includes collector tube frame 121 and a plurality of collector tube 122, collector tube 122 sets up side by side on collector tube frame 121 and all leaves certain clearance between each collector tube 122, in many sand blown by wind area, sand and dust can pass from between each collector tube 122, and the collector tube 122 surface is arc and smooth, can effectively reduce sand and dust and remain on collector tube 122, guarantee collector tube 122 light's absorptivity to ensure the generating efficiency of generating system 100, can also reduce collector subassembly 120's clean frequency, reduce maintenance cost. In addition, in windy weather, the gaps between the heat collecting pipes 122 can reduce the stress area of the whole heat collecting assembly 120 bearing wind force, reduce the probability of damage and improve the safety of the heat collecting assembly 120. From this, this application has reduced the rate of adhesion of dust at heat collection subassembly 120 surface through setting up heat collection subassembly 120, improves power generation system 100's generating efficiency, ensures heat collection subassembly 120's stability simultaneously, improves power generation system 100 life, reduces the maintenance cost.

It should be noted that, the power generation system 100 of the present application includes a plurality of heat collecting assemblies 120, the heat collecting assemblies 120 may be arranged in an array as shown in fig. 2, and a certain distance is maintained between each heat collecting assembly 120, so as to facilitate the maintenance, cleaning, etc. of the heat collecting assemblies 120, so that the operation of the power generation system 100 is more convenient.

In some possible manners, referring to fig. 3, the heat collecting pipe frame 121 in the embodiment of the present application is enclosed into a triangular prism, the heat collecting pipe 122 is disposed on one side surface of the triangular prism, and one surface of the heat collecting pipe frame 121 on which the heat collecting pipe 122 is disposed obliquely with respect to the ground.

In this application, the heat collecting pipe frame 121 is based on a triangle structure, and pressure can be dispersed to the entire heat collecting pipe frame 121, thereby achieving stability of the heat collecting pipe frame. The solar direct irradiation heat collection tube 122 can better utilize solar energy to achieve better power generation efficiency, and direct irradiation points of the sun in areas with different latitudes are different, different inclination angles can be selected by the heat collection tube frame 121 according to different geographic environments and natural conditions of the power generation system 100, and the like, so that the power generation efficiency is fully improved.

In a specific implementation, at least three support legs 1211 may be disposed at the bottom of the heat collecting pipe frame 121, and the support legs 1211 are used to support the heat collecting pipe frame 121, and at the same time, the heat collecting pipe frame 121 may be kept at a certain distance from the ground, so that the heat collecting pipe 122 is adjusted to a height more beneficial to absorbing solar energy.

In some possible implementations, referring to fig. 1 and 3, the embodiment of the present application further includes a cold working medium input pipe 123 and a hot working medium output pipe 124, the cold working medium input pipe 123 includes an input main pipe 1231 and a plurality of input branch pipes 1232, the input main pipe 1231 communicates with each of the input branch pipes 1232, the input main pipe 1231 communicates with the cold working medium tank 110, and the input branch pipes 1232 communicate with the lower ends of the heat collecting pipes 122.

The hot working fluid output pipe 124 includes an output main pipe 1241 and a plurality of output branch pipes 1242, the output main pipe 1241 being in communication with each output branch pipe 1242, the output main pipe 1241 being in communication with the hot working fluid tank 130, the output branch pipes 1242 being in communication with the upper ends of the heat collecting pipes 122.

In particular, during implementation, the cold working medium input pipe 123 is communicated with the lower end of the heat collecting pipe 122, the hot working medium output pipe 124 is communicated with the lower end of the heat collecting pipe 122, after the cold working medium is output from the cold working medium tank 110 to the heat collecting pipe 122, the cold working medium flows from the lower end to the upper end of the heat collecting pipe 122, and in this process, the heat exchange forms a first hot working medium, because the heat collecting pipe 122 is obliquely arranged relative to the ground, the working medium flows in the heat collecting pipe 122 from bottom to top, and under the action of gravity, the flowing speed of the working medium can be slowed down, so that the heat can be absorbed better.

In this application, each input branch pipe 1232 and each output branch pipe 1242 are respectively communicated with heat collecting components located in different rows, the input main pipe 1231 is communicated with the cold working medium tank 110, and the output main pipe 1241 is communicated with the hot working medium tank 130, so that the cost of constructing the conveying pipeline can be reduced. In addition, when the middle part of the power generation system 100 is damaged by the heat collecting assembly 120, the input branch pipe 1232 and the output branch pipe 1242 which are communicated with the damaged heat collecting assembly 120 can be controlled, the use of other heat collecting assemblies 120 can be not influenced while the damaged heat collecting assembly 120 is overhauled, and the cold working medium and the first heat working medium can be continuously conveyed through the other input branch pipe 1232 and the output branch pipe 1242, so that the operation stability of the power generation system 100 is effectively ensured, and the overhauling cost of the power generation system 100 is reduced.

In some implementations, referring to fig. 1 and 3, embodiments of the present application further include at least one temperature sensor 125, at least one control valve 126, and at least one check valve 127.

The temperature sensor 125 and the control valve 126 are disposed on the thermal medium output pipe 124, the temperature sensor 125 is used for detecting the temperature of the medium in the thermal medium output pipe 124, the temperature sensor 125 is electrically connected with the control valve 126, and when the temperature is greater than the preset temperature, the control valve 126 is opened, so that the first thermal medium is output to the thermal medium tank 130.

A check valve 127 is provided on at least one of the cold working medium input pipe 123 and the hot working medium output pipe 124.

In a specific implementation, a control valve may be disposed on each output branch 1242, so that when a portion of the heat collecting assembly 120 is damaged, the output branch 1242 that is communicated with the damaged heat collecting assembly 120 may be closed by the control valve 126 in a targeted manner, so that the normal operation of other heat collecting assemblies 120 is not affected. A corresponding temperature sensor 125 may be disposed at the location where each heat collecting assembly 120 communicates with the output branch 1242 to ensure that when the control valve 126 is opened, the temperature of the working fluid in each heat collecting assembly 120 is greater than or equal to the preset temperature to form the first thermal working fluid. It is also possible to provide a temperature sensor 125 only on each output branch 1242 to reduce the construction cost of the power generation system. The specific number of temperature sensors 125 and control valves 126 and the specific locations on the hot working fluid output pipe 124 are not limited in this application.

In this application, still be provided with check valve 127, check valve 127 plays the effect of control flow direction, and check valve 127 sets up in cold working medium input tube 123 can prevent that the working medium in the collection subassembly 120 from flowing back in cold working medium jar 110, and check valve 127 sets up in hot working medium output tube 124 can prevent that defeated first hot working medium from flowing back in the collection subassembly 120. The check valves 127 may be provided in the respective input branch pipes 1232 and the respective output branch pipes 1242, or may be provided in the respective input main pipes 1231 and the output main pipes 1241, which is not limited in this application.

In some implementations, referring to fig. 4, 5, and 6, the steam generating assembly 140 of the present embodiment includes a superheater 141 and a steam generator 142, the superheater 141 including a first heating element 1411 and a first steam generating element 1412, the first heating element 1411 being configured to raise a temperature of the first steam generating element 1412, the steam generator 142 being in communication with the steam compressor 150.

The heat medium tank 130 is communicated with the first heating element 1411, the first heat medium is subjected to heat exchange in the first heating element 1411 to form a second heat medium, and water in the first steam generating element 1412 is heated and evaporated into steam.

The steam generator 142 is used for storing steam and water, the first steam output port 1412a of the first steam generator 1412 is communicated with the second steam input port 1421 of the steam generator 142 to output steam into the steam generator 142, and the second water output port 1422 of the steam generator 142 is communicated with the first water input port 1412b of the first steam generator 1412 to output water into the first steam generator 1412.

The first heating element 1411 and the first steam generating element 1412 are connected to each other so as to be able to perform heat transfer. The first thermal medium in the thermal medium tank 130 can be pumped out by the thermal medium pump 131 and output to the first heating element 1411 for heat exchange, water in the first steam generating element 1412 is heated and evaporated into steam, the steam is heated and expanded to escape from the first steam generating element 1412 and output to the steam generator 142, the steam generator 142 outputs the steam to the steam compressor 150 for pressurization through the second steam output port 1424, and meanwhile, the water is output to the first steam generating element 1412 through the second water output port 1422 for generating more steam, so that part of heat energy can be converted into mechanical energy for power generation.

In some implementations, referring to fig. 4-7, the steam generating assembly 140 of the present embodiment further includes a reheater 143, the reheater 143 including a second heater 1431 and a second steam generator 1432, the second heater 1431 configured to increase the temperature of the second steam generator 1432.

The second heating element 1431 is communicated with the first heating element 1411, the second heat working medium is subjected to heat exchange in the second heating element 1431 to form a third heat working medium, and water in the second steam generating element 1432 is heated and evaporated into steam.

The third steam output port 1432a of the second steam generating part 1432 communicates with the second steam input port 1421 to output steam into the steam generator 142, and the second water output port 1422 communicates with the third water input port 1432b of the second steam generating part 1432 to output water into the second steam generating part 1432.

In this application, the steam generating assembly 140 further includes a reheater 143, the second heating element 1431 is connected to the second steam generating element 1432, the first thermal working medium flows through the first heating element 1411, after the second thermal working medium is formed by heat exchange, the second thermal working medium is output to the second heating element 1431 to perform heat exchange, water in the second steam generating element 1432 is heated and evaporated to steam, the steam is heated and expanded to escape from the second steam generating element 1432 and output to the steam generator 142, and the steam generator 142 continuously supplies water to the second steam generating element 1432 through the second water output port 1422. By providing the reheater 143, the secondary utilization of the heat energy contained in the working medium can be realized, the heat energy loss in the power generation process is reduced, and the energy utilization rate and the power generation efficiency of the power generation system 100 are improved.

In some implementations, referring to fig. 2, 4, 7, and 8, embodiments of the present application further include a feedwater preheater 170, the feedwater preheater 170 including a third heating element 171 and a heating element 172, the third heating element 171 being configured to raise the temperature of water in the heating element 172.

The second heating member 1431 communicates with the third heating member 171, the third heat medium is heat exchanged in the third heating member 171 to form a cold medium, and the third heating member 171 communicates with the cold medium tank 110 to output the cold medium into the cold medium tank 110.

Specifically, the third heating element 171 is connected to the heating element 172, and the second thermal medium flows through the second heating element 1431 and exchanges heat to form a third thermal medium, where the temperature of the third thermal medium is relatively low, which is insufficient to heat water again to generate a large amount of steam. Therefore, the third heat medium is output to the third heating element 171, the water in the heating element 172 is heated, the fifth water output port 1722 on the heating element 172 may be connected to a radiator, etc., and the heated water flows into the radiator through the fifth water output port 1722, and flows circularly between the heating element 172 and the heat dissipating device to supply heat to the user 173. By providing the feedwater preheater 170, the heat energy can be utilized more fully, the heat energy loss can be reduced, and the energy utilization rate of the whole power generation system 100 can be improved.

In a specific implementation, the third heat working medium forms a cold working medium after heat exchange in the third heating element 171, and the cold working medium is output from the third heating element to the cold working medium tank 110, so that the cyclic utilization of the working medium is realized, and the running cost of the power generation system 100 is reduced.

In some possible implementations, referring to fig. 1, the embodiment of the present application further includes a second turbo generator 161, where the second turbo generator 161 is in communication with the first turbo generator 160, and after the steam drives the first turbo generator 160, the second turbo generator 161 is driven to generate power.

In a specific implementation, the steam drives the first turbine generator 160 to generate electricity and then still maintains certain mechanical energy, the steam is output to the second turbine generator 161, and the second turbine generator 161 is driven again to generate electricity, so that the loss of mechanical energy in the electricity generation process can be reduced, and the electricity generation efficiency is improved.

In some possible implementations, referring to fig. 1 and 4, and fig. 6 and 7, the embodiment of the present application further includes a condenser 180 and a condensate tank 183, where the second turbo generator 161 is in communication with the fourth steam input 181 of the condenser 180, and the steam drives the second turbo generator 161 to generate electricity, and then cools the electricity to form liquid water through the condenser 180.

The fourth water output port 182 of the condenser 180 communicates with the condensate tank 183 to output water into the condensate tank 183, and the condensate tank 183 communicates with the second water input port 1423 of the steam generator 142 and the fifth water input port 1721 of the heating element 172, respectively, to output water into the steam generator 142 and the heating element 172.

In this application, the steam drives the second turbo generator 161 to generate electricity and then output to the condenser 180, and the steam is cooled into water by the condenser 180 and then output to the condensing water tank 183, and the condensing water tank 183 is used for storing liquid water and supplying water to the steam generator 142 and the heating element 172, so that the cyclic utilization of water in the power generation system 100 is realized, the supplementing frequency of the water is reduced, the stability of power generation is enhanced, and the running cost of the power generation system 100 is saved.

In some implementations, referring to fig. 1 and 2, the embodiments of the present application further include an electric heater 190, where the electric heater 190 is electrically connected to the photovoltaic power generation region 191 and the wind power generation region 192.

The cold working medium tank 110 is communicated with the electric heater 190, the cold working medium is subjected to heat exchange in the electric heater 190 to form a first hot working medium, and the electric heater 190 is communicated with the hot working medium tank 130.

In a specific implementation, the cold working medium in the cold working medium tank 110 is output to the electric heater 190 to be heated to form a first hot working medium, and the first hot working medium is output from the electric heater 190 to the hot working medium tank 130. The photovoltaic power generation area 191 and the wind power generation area 192 transmit the electric power generated by them to the electric grid through the outgoing tower 193 and the collecting line 194, but in actual operation, there is often a part of electric power which is not consumed by the electric grid. The electric heater 190 is electrically connected with the photovoltaic power generation area 191 and the wind power generation area 192, and the electric energy which is not consumed by the power grid and is generated by the photovoltaic power generation area 191 and the wind power generation area 192 is transmitted to the electric heater 190 to supply power to the electric heater, so that the recycling and reutilization of the non-consumed electric energy generated by the photovoltaic power generation area 191 and the wind power generation area 192 can be realized, the loss of the electric energy is reduced, and the energy utilization rate is improved.

In summary, the power generation system 100 provided in the present application may be divided into a heat collection area, a heat exchange area and a power generation area according to its main functions. The heat collecting region is composed of a cold working medium tank 110, a heat collecting assembly 120, a hot working medium tank 130 and an electric heater 190. The heat collecting region absorbs solar energy through the heat collecting assembly 120 and converts the solar energy into heat energy of the first heat working medium, the electric heater 190 converts electric energy which is not consumed by the photovoltaic power generation region 191 and the wind power generation region 192 into heat energy, and the first heat working medium is stored through the heat working medium tank 130, so that heat energy is stored, and the functions of heat collection and energy storage are realized. The heat exchange zone is composed of a hot working medium tank 130, a steam generating component 140, a feed water preheater 170 and a cold working medium tank 110. The cold working medium is heated by the heat collecting assembly 120 or the electric heater 190 to form a first hot working medium, and then enters the hot working medium tank 130, the first hot working medium in the hot working medium tank sequentially flows through the steam generating assembly 140 and the water supply preheater 170, and finally forms the cold working medium after heat exchange is performed in the first hot working medium, and the cold working medium enters the cold working medium tank 110, so that heat exchange is performed by fully utilizing heat energy generated by the heat collecting area, and the utilization rate of the heat energy is improved. The power generation zone is composed of a steam generation assembly 140, a steam compressor 150, a first turbine generator 160, a second turbine generator 161, a condenser 180, a condensate tank 183 and a feedwater preheater 170. After being compressed by the steam compressor 150, the steam in the steam generating assembly 140 sequentially passes through the first turbine generator 160 and the second turbine generator 161 to be driven to generate electricity, and after the steam is driven to generate electricity, the steam is cooled into water through the condenser 180 to enter the condensate water tank 183, and the condensate water tank supplies water for the steam generating assembly 140 and the water supply preheater 170, so that the water recycling is realized while the efficient power generation is realized. The heat energy is collected and stored through the heat collecting area, the heat energy is converted into mechanical energy through the heat exchanging area, and the mechanical energy is further converted into electric energy through the power generating area, so that power generation is finally realized.

In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, indirectly connected through an intermediary, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiments or implications herein must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the embodiments herein. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless specifically stated otherwise.

The terms first, second, third, fourth and the like in the description and in the claims of embodiments of the application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the present application described herein may be implemented, for example, in sequences other than those illustrated or described herein.

Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It will be appreciated that the various numerical numbers referred to in the embodiments of the present application are merely for ease of description and are not intended to limit the scope of the embodiments of the present application.

It should be understood that, in the embodiments of the present application, the sequence number of each process described above does not mean that the execution sequence of each process should be determined by the function and the internal logic of each process, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. The power generation system is characterized by comprising a cold working medium tank, a plurality of heat collecting components, a hot working medium tank, a steam generating component, a steam compressor and a first turbine generator;

the heat collecting assembly comprises a heat collecting pipe frame and a plurality of heat collecting pipes, wherein the heat collecting pipes are communicated with each other, the heat collecting pipes are arranged on the heat collecting pipe frame side by side and are communicated with each other, and the heat collecting pipes are used for absorbing solar energy to improve the temperature of the heat collecting pipes;

the cold working medium tanks are communicated with the heat collecting pipes, and the cold working medium in the cold working medium tanks is output to the heat collecting pipes to form a first heat working medium, and the heat collecting pipes are communicated with the heat working medium tanks to output the first heat working medium to the heat working medium tanks;

the thermal working medium tank is communicated with the steam generation assembly so that the first thermal working medium is output to the steam generation assembly to evaporate water into steam;

the steam generation assembly is in communication with the steam compressor to pressurize steam in the steam compressor;

the vapor compressor is communicated with the first turbine generator so that the pressurized vapor drives the first turbine generator to generate electricity.

2. The power generation system according to claim 1, wherein the heat collecting pipe frame is surrounded into a triangular prism, the heat collecting pipe is provided on one side face of the triangular prism, and a face of the heat collecting pipe frame on which the heat collecting pipe is provided obliquely with respect to the ground.

3. The power generation system of claim 1, further comprising a cold working medium input pipe and a hot working medium output pipe, the cold working medium input pipe comprising an input main pipe and a plurality of input branch pipes, the input main pipe being in communication with each of the input branch pipes, the input main pipe being in communication with the cold working medium tank, the input branch pipes being in communication with the lower ends of the heat collecting pipes;

the thermal working medium output pipe comprises an output main pipe and a plurality of output branch pipes, wherein the output main pipe is communicated with each output branch pipe, the output main pipe is communicated with the thermal working medium tank, and the output branch pipes are communicated with the upper ends of the heat collecting pipes.

4. The power generation system of claim 3, further comprising at least one temperature sensor, at least one control valve, and at least one check valve;

the temperature sensor and the control valve are arranged on the thermal working medium output pipe, the temperature sensor is used for detecting the temperature of working medium in the thermal working medium output pipe, the temperature sensor is electrically connected with the control valve, and when the temperature is higher than a preset temperature, the control valve is opened so that the first thermal working medium is output to the thermal working medium tank;

the check valve is arranged on at least one of the cold working medium input pipe and the hot working medium output pipe.

5. The power generation system of claim 1, wherein the steam generation assembly comprises a superheater comprising a first heating element for increasing the temperature of the first steam generation element and a first steam generator in communication with the steam compressor;

the first heating piece is communicated with the first heat working medium tank, the first heat working medium is subjected to heat exchange in the first heating piece to form a second heat working medium, and water in the first steam generating piece is heated and evaporated to steam;

the steam generator is used for storing steam and water, a first steam output port of the first steam generating piece is communicated with a second steam input port of the steam generator so as to output steam into the steam generator, and a second water output port of the steam generator is communicated with a first water input port of the first steam generating piece so as to output water into the first steam generating piece.

6. The power generation system of claim 5, wherein the steam generation assembly further comprises a reheater, the reheater comprising a second heating element and a second steam generation element, the second heating element configured to increase a temperature of the second steam generation element;

the second heating piece is communicated with the first heating piece, the second heat working medium is subjected to heat exchange in the second heating piece to form a third heat working medium, and water in the second steam generating piece is heated and evaporated to steam;

the third steam output port of the second steam generating part is communicated with the second steam input port so as to output steam into the steam generator, and the second water output port is communicated with the third water input port of the second steam generating part so as to output water into the second steam generating part.

7. The power generation system of claim 6, further comprising a feedwater preheater comprising a third heating element and a heating element, the third heating element for increasing the temperature of water in the heating element;

the second heating piece is communicated with the third heating piece, the third heating piece is subjected to heat exchange in the third heating piece to form the cold working medium, and the third heating piece is communicated with the cold working medium tank so as to output the cold working medium into the cold working medium tank.

8. The power generation system of claim 7, further comprising a second turbine generator in communication with the first turbine generator, the steam driving the first turbine generator followed by driving the second turbine generator to generate power.

9. The power generation system of claim 8, further comprising a condenser and a condensate tank, wherein the second turbo generator is in communication with a fourth steam input port of the condenser, and wherein steam drives the second turbo generator to generate electricity and then cools the generated electricity through the condenser to form liquid water;

the fourth water output port of the condenser is communicated with the condensate water tank so as to output water into the condensate water tank, and the condensate water tank is respectively communicated with the second water input port of the steam generator and the fifth water input port of the heating piece so as to output water into the steam generator and the heating piece.

10. The power generation system of any one of claims 1 to 9, further comprising an electric heater electrically connected to the photovoltaic power generation region and the wind power generation region;

the cold working medium tank is communicated with the electric heater, the cold working medium is subjected to heat exchange in the electric heater to form the first hot working medium, and the electric heater is communicated with the hot working medium tank.