Photo-thermal power generation system

Abstract

The invention provides a photo-thermal power generation system, and belongs to the technical field of solar photo-thermal power generation. The photo-thermal power generation system comprises a mirror field; the air cooling tower is arranged in the center of the mirror field; the heat collector is arranged at the top of the air cooling tower, collects the solar direct light gathered by the mirror field and converts the solar direct light into heat energy; the circulating assembly is arranged in the air cooling tower and connected with the heat collector; the anti-vibration assembly is arranged below the heat collector; a steam generating assembly; the direct air cooling assembly is arranged in the air cooling tower and connected with the steam generation assembly through a first pipeline and a second pipeline, and one end of the first pipeline and one end of the second pipeline are both located in the direct air cooling assembly; the first heat exchanger is arranged on the first pipeline and connected with the circulation assembly. The heat collector is arranged at the top of the air cooling tower, a heat absorption tower does not need to be additionally arranged, and the construction cost is reduced. Meanwhile, the circulating assembly is arranged in the air cooling tower, so that heat loss existing when the environment temperature is low is reduced, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of solar thermal power generation, and particularly to a solar thermal power generation system. Background Art

[0002] Solar thermal power generation is a technology that uses solar energy for power generation. It generates high-temperature thermal energy by concentrating sunlight, and then drives a steam turbine generator set to generate electricity. Solar thermal power generation technology has the advantages of being clean, environmentally friendly, and sustainable, and is one of the important development directions in the field of renewable energy.

[0003] A solar thermal power generation system is used to convert solar energy into electrical energy. The solar thermal power generation system mainly includes a mirror field, an air cooling tower, an absorber tower, as well as key components such as a heat exchanger and a steam turbine generator set. The mirror field tracks the movement of the sun, reflects and concentrates sunlight onto the absorber tower, converts sunlight into thermal energy, and then uses the heat exchanger for heat transfer and conversion, enabling the steam turbine generator set to use this thermal energy to drive the generator to generate electricity.

[0004] However, in a cold environment, additional heat preservation measures need to be taken for the absorber tower and the air cooling tower to avoid heat loss and the problem of cooling water freezing, thus greatly increasing the production and construction costs. Summary of the Invention

[0005] This application provides a solar thermal power generation system to solve the problem of high production and construction costs of existing solar thermal power generation systems in cold regions.

[0006] This application provides a solar thermal power generation system, including:

[0007] A mirror field for concentrating direct solar light;

[0008] An air cooling tower disposed at the center of the mirror field;

[0009] A collector disposed on the top of the air cooling tower, the collector collecting the direct solar light concentrated by the mirror field and converting it into thermal energy;

[0010] A circulation component disposed in the air cooling tower, the circulation component being connected to the collector;

[0011] An anti-vibration component disposed below the collector;

[0012] A steam generation component;

[0013] A direct air cooling component disposed in the air cooling tower, the direct air cooling component being connected to the steam generation component through a first pipeline and a second pipeline, one end of the first pipeline and one end of the second pipeline being both located inside the direct air cooling component;

[0014] The first heat exchanger is disposed on the first pipeline and is connected to the circulation assembly.

[0015] In a possible implementation, for the solar thermal power generation system provided by the present application, the circulation assembly includes:

[0016] A cold tank, which is connected to the collector through a rising pipeline, and a heat storage member is disposed in the cold tank;

[0017] A hot tank, which is connected to the collector through a descending pipeline;

[0018] A first circulation pump, which is disposed on the cold tank, and the first circulation pump is used to pump the heat storage member into the rising pipeline;

[0019] A second circulation pump, which is disposed on the hot tank, and the second circulation pump is used to pump the heat storage member into the first heat exchanger.

[0020] In a possible implementation, for the solar thermal power generation system provided by the present application, the circulation assembly further includes a third pipeline and a third circulation pump. The two ends of the third pipeline are respectively connected to the hot tank and the cold tank, and the third circulation pump is disposed on the third pipeline.

[0021] In a possible implementation, for the solar thermal power generation system provided by the present application, both the first pipeline and the third pipeline penetrate through the first heat exchanger. The liquid in the first pipeline absorbs the heat of the heat storage member in the third pipeline through the first heat exchanger to form steam, and the steam enters the direct air cooling assembly through the second pipeline and is converted into liquid and flows into the first pipeline.

[0022] In a possible implementation, for the solar thermal power generation system provided by the present application, the steam generating assembly includes:

[0023] A steam turbine, which is connected to the direct air cooling assembly through the first pipeline and the second pipeline;

[0024] A condensate pump, which is disposed on the first pipeline.

[0025] In a possible implementation, for the solar thermal power generation system provided by the present application, the direct air cooling assembly includes:

[0026] A steam containing member, on which a steam inlet and a plurality of first communication holes are provided;

[0027] A plurality of condensate pipes, which have steam inlet holes and liquid outlet holes, and the steam inlet holes are in one-to-one correspondence and communication with the first communication holes;

[0028] A condensate accommodating member, which is in communication with the liquid outlet hole, has a liquid outlet, and the liquid outlet is in communication with the first pipeline.

[0029] In a possible implementation manner, for the solar thermal power generation system provided by the present application, the direct air cooling assembly further includes:

[0030] A fourth pipeline, one end of which is in communication with the condensate accommodating member, the other end has a nozzle, and the fourth pipeline is located above the steam accommodating member;

[0031] A second heat exchanger, which is arranged on the fourth pipeline;

[0032] A fourth circulation pump, which is arranged on the fourth pipeline;

[0033] A fifth pipeline, both ends of which are respectively in communication with the hot tank, and the fifth pipeline penetrates through the second heat exchanger;

[0034] A fifth circulation pump, which is arranged on the fifth pipeline.

[0035] In a possible implementation manner, for the solar thermal power generation system provided by the present application, the direct air cooling assembly further includes:

[0036] A first restricting member, which is arranged above the steam accommodating member, and the first restricting member is provided with a first anti-splash hole and a first pipe hole, and the end of the fourth pipeline with the nozzle extends into the first pipe hole;

[0037] A second restricting member, which is arranged below the condensate pipe, and the second restricting member is provided with a second anti-splash hole.

[0038] In a possible implementation manner, for the solar thermal power generation system provided by the present application, the direct air cooling assembly further includes a fixing member, and the fixing member is provided with a plurality of second pipe holes, and the condensate pipes correspond to the second pipe holes one by one and penetrate through the second pipe holes.

[0039] In a possible implementation manner, for the solar thermal power generation system provided by the present application, the direct air cooling assembly further includes a vacuum pump and a vacuum port, the vacuum port is located above the first restricting member, and the suction end of the vacuum pump extends into the vacuum port.

[0040] The solar thermal power generation system provided by this application includes a mirror field for concentrating direct solar light; an air-cooled tower arranged at the center of the mirror field; a collector arranged on the top of the air-cooled tower, which collects the direct solar light concentrated by the mirror field and converts it into heat energy; a circulation component arranged inside the air-cooled tower and connected to the collector; a vibration-resistant component arranged below the collector; a steam generation component; a direct air-cooling component arranged inside the air-cooled tower, and the direct air-cooling component is connected to the steam generation component through a first pipeline and a second pipeline, and one ends of both the first pipeline and the second pipeline are located inside the direct air-cooling component; a first heat exchanger arranged on the first pipeline and connected to the circulation component. By arranging the collector on the top of the air-cooled tower, the solar thermal power generation system provided by this application does not require an additional heat absorption tower, reducing the production and construction costs. At the same time, by arranging the circulation component inside the air-cooled tower, the heat loss existing at a relatively low ambient temperature is reduced, and the heat exchange efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with this application and used together with the specification to explain the principles of this application.

[0042] Figure 1 It is a schematic structural diagram of the solar thermal system provided by an embodiment of this application;

[0043] Figure 2 is Figure 1 a schematic structural diagram with the mirror field removed;

[0044] Figure 3 It is a schematic structure of a part of the solar thermal system provided by an embodiment of this application Figure 1 ;

[0045] Figure 4 It is a schematic structure of a part of the solar thermal system provided by an embodiment of this application Figure 2 ;

[0046] Figure 5 It is a schematic structural diagram of a part of the direct air-cooling component provided by an embodiment of this application;

[0047] Figure 6 is Figure 5 a schematic structural diagram of the first limiting member in

[0048] Figure 7 is Figure 5 a schematic structural diagram of the second limiting member in

[0049] Figure 8 is Figure 5 a schematic structure of the fixing member in Figure 1 ;

[0050] Figure 9 isFigure 5 Structural Schematic of the Middle Fixing Piece Figure 2 。

[0051] Explanation of the Attached Drawing Reference Numerals:

[0052] 100 - Mirror Field

[0053] 200 - Air Cooling Tower

[0054] 300 - Collector

[0055] 400 - Circulation Assembly; 411 - Cold Tank; 412 - Hot Tank; 413 - First Circulation Pump; 414 - Second Circulation Pump;

[0056] 415 - Rising Pipeline; 416 - Falling Pipeline; 417 - Third Pipeline; 418 - Third Circulation Pump;

[0057] 500 - Vibration Resistance Assembly

[0058] 600 - Steam Generation Assembly; 611 - Steam Turbine; 612 - Condensate Pump; 613 - First Pipeline; 614 - Second Pipeline;

[0059] 700 - Direct Air Cooling Assembly; 711 - Steam Inlet; 712 - Condensing Tube; 7121 - Steam Inlet Hole; 7122 - Liquid Outlet Hole; 713 - Liquid Outlet; 714 - Fourth Pipeline; 7141 - Nozzle; 715 - Fourth Circulation Pump; 716 - Fifth Pipeline; 717 - Fifth Circulation Pump; 718 - Second Heat Exchanger; 719 - First Limiting Piece; 7191 - First Anti - Splashing Hole; 7192 - First Pipe Hole; 720 - Second Limiting Piece; 7201 - Second Anti - Splashing Hole; 721 - Fixing Piece; 7211 - Second Pipe Hole; 722 - Vacuum Pump; 723 - Vacuum Port

[0060] 800 - First Heat Exchanger

[0061] Through the above - mentioned attached drawings, the specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These attached drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed Embodiment

[0062] To make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below in conjunction with the attached drawings in the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of protection of the present application.

[0063] In the embodiments of the present application, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present application can be understood according to specific circumstances.

[0064] In addition, the terms "arrangement", "connection", and "fixation" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0065] In the specification and claims of the present application and the above drawings, terms such as "first", "second", "third", "fourth", etc. (if any) are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein.

[0066] In the embodiments of the present application, words such as "exemplarily" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplarily" or "for example" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0067] Unless otherwise specified, the term "plurality" means two or more.

[0068] As described in the background art, solar thermal power generation is a technology that uses solar energy for power generation. It generates high-temperature thermal energy by focusing sunlight, and then drives a steam turbine generator set to generate electricity. Solar thermal power generation technology has the advantages of being clean, environmentally friendly, sustainable, etc., and is one of the important development directions in the field of renewable energy.

[0069] The solar thermal power generation system is used to convert solar energy into electrical energy. The solar thermal power generation system mainly includes a mirror field, an air cooling tower, a heat absorption tower, as well as key components such as a heat exchanger and a steam turbine generator set. The mirror field tracks the movement of the sun, reflects and focuses sunlight onto the heat absorption tower, converting sunlight into heat energy. Then, the heat exchanger is used for the transfer and conversion of heat energy, enabling the steam turbine generator set to drive the generator to generate electrical energy using this heat energy.

[0070] However, in a cold environment, additional thermal insulation measures need to be taken for the heat absorption tower and the air cooling tower to avoid heat loss and the problem of cooling water freezing, thus greatly increasing the production and construction costs.

[0071] To solve the above problems, the present application provides a solar thermal power generation system, including a mirror field for concentrating direct solar light; an air cooling tower disposed at the center of the mirror field; a collector disposed at the top of the air cooling tower, the collector collecting the direct solar light concentrated by the mirror field and converting it into heat energy; a circulation component disposed inside the air cooling tower, the circulation component being connected to the collector; a vibration-resistant component disposed below the collector; a steam generation component; a direct air cooling component disposed inside the air cooling tower, the direct air cooling component being connected to the steam generation component through a first pipeline and a second pipeline, one end of the first pipeline and one end of the second pipeline being located inside the direct air cooling component; a first heat exchanger disposed on the first pipeline and connected to the circulation component. Thus, by disposing the collector at the top of the air cooling tower, there is no need to additionally set up a heat absorption tower, reducing the production and construction costs. At the same time, by disposing the circulation component inside the air cooling tower, the heat loss existing at a lower ambient temperature is reduced, improving the heat exchange efficiency.

[0072] The following will specifically describe the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems in detail. The following several specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0073] Please refer to Figure 1 、 Figure 2 and Figure 4。This embodiment provides a solar thermal power generation system, including a mirror field 100 for concentrating direct solar light; an air cooling tower 200 disposed at the center of the mirror field 100; a collector 300 disposed at the top of the air cooling tower 200, where the collector 300 collects the direct solar light concentrated by the mirror field 100 and converts it into heat energy; a circulation assembly 400 disposed within the air cooling tower 200, and the circulation assembly 400 is connected to the collector 300; a vibration-resistant assembly 500 disposed below the collector 300; a steam generation assembly 600; a direct air cooling assembly 700 disposed within the air cooling tower 200, and the direct air cooling assembly 700 is connected to the steam generation assembly 600 through a first pipeline 613 and a second pipeline 614, and one end of the first pipeline 613 and one end of the second pipeline 614 are both located within the direct air cooling assembly 700; a first heat exchanger 800 disposed on the first pipeline 613 and connected to the circulation assembly 400.

[0074] Among them, the mirror field 100 is mainly composed of a large number of heliostats, and each heliostat is a concentrating system capable of independently tracking the sun. The heliostats in the mirror field 100 are arranged in a specific array to form a large-scale reflecting surface for capturing and reflecting direct solar light, and then focusing the captured solar energy onto the collector 300. Thus, the conversion of solar energy to heat energy is achieved.

[0075] In this embodiment, the circulation assembly 400 can absorb the heat energy in the collector 300 and transfer the heat energy to the steam generation assembly 600 through the first heat exchanger 800, thereby generating high-temperature and high-pressure steam and using the steam for power generation, realizing the conversion of solar energy to electrical energy.

[0076] In this embodiment, the direct air cooling assembly 700 is a cooling assembly that uses ambient air as a cooling medium. By directly contacting the low-pressure steam, the heat in the steam is transferred to the air, thereby condensing the steam into a liquid state.

[0077] In an optional embodiment, the direct air cooling assembly 700 is disposed at the bottom of the air cooling tower 200, which facilitates installation, inspection, and maintenance work, thereby reducing the difficulty and cost of maintenance. At the same time, disposing the direct air cooling assembly 700 at the bottom of the air cooling tower 200 can also make the cooling air flow into the direct air cooling assembly 700 more evenly, thereby improving the cooling efficiency.

[0078] Specifically, in this embodiment, both the collector 300 and the circulation component 400 are arranged inside the air-cooled tower 200, so that there is no need to additionally set up an absorber tower, thus saving the production and construction costs. In addition, in a cold environment or other environments with relatively low average temperatures, since the circulation component 400 stores a large amount of heat, arranging the circulation component 400 inside the air-cooled tower 200 can avoid heat loss caused by heat exchange between the heat stored in the circulation component 400 and the surrounding low-temperature environment. Arranging the direct air-cooling component 700 inside the air-cooled tower 200 can also avoid the problem of freezing of the liquid condensed from steam, thereby improving the thermal efficiency and stability of the system.

[0079] Meanwhile, arranging the collector 300 at the top of the air-cooled tower 200 provides sufficient space for the installation of the collector 300, enabling the collector to better utilize solar energy resources, directly receive the radiant energy from the sun, thereby reducing the difficulty of concentrating light and improving the heat collection efficiency.

[0080] In addition, the solar thermal power generation system provided in this embodiment further includes an anti-vibration component 500, which is arranged below the collector 300 to avoid damage to the collector 300 caused by vibration during operation.

[0081] In this embodiment, the anti-vibration component 500 is composed of a plurality of springs. In other embodiments, the specific structure of the anti-vibration component 500 can also be adaptively selected according to actual needs.

[0082] Please refer to Figure 1 、 Figure 2 and Figure 4 . Further, in an optional embodiment, the circulation component 400 includes a cold tank 411, which is connected to the collector 300 through a rising pipeline 415, and a heat storage element is arranged in the cold tank 411; a hot tank 412, which is connected to the collector 300 through a descending pipeline 416; a first circulation pump 413, which is arranged on the cold tank 411, and the first circulation pump 413 is used to pump the heat storage element into the rising pipeline 415; a second circulation pump 414, which is arranged on the hot tank 412, and the second circulation pump 414 is used to pump the heat storage element into the first heat exchanger 800.

[0083] Specifically, in this embodiment, the circulation component 400 includes a cold tank 411 and a hot tank 412. The cold tank 411 stores a heat storage element. The first circulation pump 413 is arranged on the cold tank 411 and can pump the heat storage element into the rising pipeline 415, so as to exchange heat with the collector 300 located at the top of the air-cooled tower 200, and then enter the hot tank 412 through the descending pipeline 416 for storage. When heat exchange is required, the second circulation pump 414 pumps the heat storage element in the hot tank 412 into the first heat exchanger 800, and exchanges heat with the liquid in the first pipeline 613 through the first heat exchanger 800 to convert the liquid into a steam state.

[0084] Among them, both the cold tank 411 and the hot tank 412 adopt a cylindrical design to maximize the storage space. At the same time, to ensure the stability of the heat storage component, the cold tank 411 and the hot tank 412 are generally made of corrosion-resistant and high-temperature-resistant materials. In addition, since the heat storage component is in a high-temperature state in the hot tank 412, the hot tank 412 also includes a heat insulation layer to reduce heat loss.

[0085] By adopting the above technical solution, the solar thermal power generation system provided in this embodiment can efficiently utilize the thermal energy collected by the collector 300, and realize the storage and conversion of thermal energy through the circulation component 400, ensuring the stable supply of thermal energy and the reliable operation of the system.

[0086] In this embodiment, the heat storage component is molten salt. Molten salt has extremely high thermal stability and chemical stability, can stably exist at high temperatures for a long time, will not decompose or chemically react with other substances. At the same time, molten salt has a high heat capacity and thermal conductivity, can quickly absorb and store a large amount of thermal energy, and can quickly transfer the thermal energy to other media to achieve efficient heat exchange.

[0087] At the same time, it should be noted that the selection of the heat storage component is not limited to molten salt, and the heat storage component can be adaptively selected according to actual needs. This embodiment does not impose any restrictions on this.

[0088] Please refer to Figure 1 、 Figure 2 and Figure 4 . Further, in an optional embodiment, the circulation component 400 further includes a third pipeline 417 and a third circulation pump 418. The two ends of the third pipeline 417 are respectively connected to the hot tank 412 and the cold tank 411, and the third circulation pump 418 is arranged on the third pipeline 417.

[0089] Specifically, in this embodiment, the cold tank 411 and the hot tank 412 are connected by the third pipeline 417. When the high-temperature heat storage component in the third pipeline 417 exchanges heat with the liquid in the first pipeline 613, the liquid in the first pipeline 613 is converted into a steam state, and the temperature of the heat storage component in the third pipeline 417 decreases. The cooled heat storage component enters the cold tank 411 along the third pipeline 417, thereby realizing the circulation of the heat storage component and ensuring the effective utilization of the heat storage component and the continuous operation of the system.

[0090] At the same time, a third circulation pump 418 is also arranged on the third pipeline 417. When the cooled heat storage component flows along the third pipeline 417, the third circulation pump 418 can provide power for the heat storage component to ensure that the heat storage component can smoothly flow into the cold tank 411. In addition, the setting of the third circulation pump 418 not only ensures the continuity of the flow of the heat storage component, but also can accurately control the flow rate and flow velocity to optimize the thermal energy circulation.

[0091] Please refer to Figure 1 、 Figure 2 and Figure 4 。 Further, in an optional embodiment, both the first pipeline 613 and the third pipeline 417 penetrate through the first heat exchanger 800. The liquid in the first pipeline 613 absorbs the heat of the heat storage member in the third pipeline 417 through the first heat exchanger 800 to form steam, and the steam enters the direct air cooling assembly 700 through the second pipeline 614 and is converted into a liquid and flows into the first pipeline 613.

[0092] Specifically, since both the third pipeline 417 and the first pipeline 613 penetrate through the first heat exchanger 800, the high-temperature heat storage member in the third pipeline 417 can efficiently exchange heat with the liquid in the first pipeline 613 through the first heat exchanger 800, enabling the liquid in the first pipeline 613 to be quickly converted into steam.

[0093] At the same time, after the steam generating assembly 600 generates electricity using high-temperature and high-pressure steam, the pressure of the steam gradually decreases as energy is released, and then it enters the direct air cooling assembly 700 through the second pipeline 614 and condenses into a liquid state, and then enters the first pipeline 613 to re-exchange heat with the heat storage member in the third pipeline 417 through the first heat exchanger 800 and is converted into a steam state to continue generating electricity, thereby realizing the continuous utilization of heat energy and the recycling of steam, ensuring the efficient conversion of heat energy and the stable operation of the system.

[0094] Please refer to Figure 1 、 Figure 2 and Figure 4 。 Further, in an optional embodiment, the steam generating assembly 600 includes a steam turbine 611, which is connected to the direct air cooling assembly 700 through the first pipeline 613 and the second pipeline 614; and a condensate pump 612, which is arranged on the first pipeline 613.

[0095] Specifically, in this embodiment, the steam generating assembly 600 includes a steam turbine 611. The steam turbine 611 is connected to the direct air cooling assembly 700 through the first pipeline 613 and the second pipeline 614. The high-temperature and high-pressure steam in the first pipeline 613 enters the steam turbine 611, pushing the wheel in the steam turbine 611 to rotate, thereby driving the generator to generate electricity or providing other mechanical power through the steam turbine 611. After the high-temperature and high-pressure steam does work on the steam turbine 611, the pressure of the steam drops significantly and flows through the second pipeline 614 to the direct air cooling assembly 700 for cooling, converting the steam into a liquid state and then re-entering the first pipeline 613 for circulation.

[0096] When the steam is converted into a liquid state and enters the first pipeline 613, since a condensate pump 612 is provided on the first pipeline 613, power is provided for the flow of the liquid to ensure that the liquid can flow smoothly along the first pipeline 613. In addition, the setting of the condensate pump 612 not only ensures the continuity of the liquid flow, but also can accurately control the flow rate and velocity, thereby realizing the stable operation of the system.

[0097] Please refer to Figure 1 、 Figure 2 and Figure 4 。 Further, in an alternative embodiment, the direct air-cooling assembly 700 includes a steam container, and a steam inlet 711 and a plurality of first communication holes are formed in the steam container; a plurality of condensate pipes 712, having a steam inlet hole 7121 and a liquid outlet hole 7122, and the steam inlet hole 7121 is in one-to-one correspondence and communication with the first communication hole; a condensate liquid container, the condensate liquid container is connected to the liquid outlet hole 7122, the condensate liquid container has a liquid outlet 713, and the liquid outlet 713 is connected to the first pipeline 613.

[0098] Specifically, in this embodiment, the second pipeline 614 is connected to the steam inlet 711, the low-pressure steam in the second pipeline 614 enters the steam container through the steam inlet 711, and then enters the condensate pipe 712 through the first communication hole to exchange heat with the air and condense into a liquid state. The liquid enters the condensate liquid container through the liquid outlet hole 7122, and the first pipeline 613 is connected to the condensate liquid container through the liquid outlet 713, so that the condensed liquid enters the first pipeline 613 to complete the cycle.

[0099] By adopting the above technical solution, the steam in the condensate pipe 712 exchanges heat with the air to complete condensation, ensuring the continuous and stable circulation of the liquid.

[0100] Please refer to Figures 2 to 4 。 Further, in an alternative embodiment, the direct air-cooling assembly 700 further includes: a fourth pipeline 714, one end of the fourth pipeline 714 is connected to the condensate liquid container, and the other end has a nozzle 7141. The fourth pipeline 714 is located above the steam container; a second heat exchanger 718, arranged on the fourth pipeline 714; a fourth circulation pump 715, arranged on the fourth pipeline 714; a fifth pipeline 716, both ends of the fifth pipeline 716 are respectively connected to the hot tank 412, and the fifth pipeline 716 passes through the second heat exchanger 718; a fifth circulation pump 717, arranged on the fifth pipeline 716.

[0101] Specifically, in this embodiment, the direct air-cooling assembly 700 further includes a fourth pipeline 714 and a fifth pipeline 716. The fourth pipeline 714 is communicated with the condensate accommodating member, so that part of the liquid in the condensate accommodating member can enter the fourth pipeline 714. Both the fifth pipeline 716 and the fourth pipeline 714 penetrate through the second heat exchanger 718, so that the liquid in the fourth pipeline 714 can exchange heat with the heat storage member in the fifth pipeline 716 through the second heat exchanger 718, thereby avoiding the problem of liquid freezing in a cold environment.

[0102] Meanwhile, a fourth circulation pump 715 is arranged on the fourth pipeline 714 to provide power for the liquid in the fourth pipeline 714 and control the flow rate, thereby controlling the degree of heat exchange between the liquid in the fourth pipeline 714 and the heat storage member in the fifth pipeline 716. When the liquid in the fourth pipeline 714 is heated, it enters the steam accommodating member through the nozzle 7141, thereby pre-cooling the steam, and thus improving the cooling efficiency of the steam while preventing liquid freezing.

[0103] In addition, a fifth circulation pump 717 is further arranged on the fifth pipeline 716. The fifth circulation pump 717 is used to provide power for the flow of the heat storage member in the fifth pipeline 716 and control the flow rate of the heat storage member, so as to prevent the problem that the heat storage member exchanges sufficient heat with the liquid in the fourth pipeline 714, resulting in the liquid being converted into steam in the fourth pipeline 714 and causing heat loss.

[0104] Please refer to Figures 2 to 7 . Further, in an alternative embodiment, the direct air-cooling assembly 700 further includes: a first limiting member 719, arranged above the steam accommodating member. The first limiting member 719 is provided with a first anti-splash hole 7191 and a first pipe hole 7192. One end of the fourth pipeline 714 with the nozzle 7141 extends into the first pipe hole 7192; a second limiting member 720, arranged below the condensate pipe 712. The second limiting member 720 is provided with a second anti-splash hole 7201.

[0105] Specifically, in this embodiment, the direct air-cooling assembly 700 further includes a first limiting member 719. The first limiting member 719 is provided with a first pipe hole 7192. One end of the fourth pipeline 714 with the nozzle 7141 extends into the first pipe hole 7192, so as to put liquid into the steam accommodating member to achieve pre-cooling. By providing the first pipe hole 7192, the position of the fourth pipeline 714 is restricted, preventing displacement.

[0106] Meanwhile, when the fourth pipeline 714 discharges liquid through the nozzle 7141, splashing problems may occur due to the flow rate and pressure of the liquid. To prevent liquid splashing, a first anti-splash hole 7191 is also provided on the first limiting member 719 provided in this embodiment. Through the setting of the first anti-splash hole 7191, the pressure and impact of the liquid in the steam containing member are reduced, thereby avoiding the occurrence of splashing problems and improving the safety and stability of the direct air-cooling assembly 700.

[0107] In addition, it should be noted that the number of the fourth pipelines 714 can be multiple. Correspondingly, the number of the first pipe holes 7192 is multiple. The fourth pipelines 714 and the first pipe holes 7192 are arranged in one-to-one correspondence, and this embodiment does not impose any limitation on their specific numbers.

[0108] In this embodiment, the direct air-cooling assembly 700 further includes a second limiting member 720. The second limiting member 720 is arranged below the condensing pipe 712, and a plurality of second anti-splash holes 7201 are provided on the second limiting member 720. The condensed liquid flows out from the liquid outlet hole 7122 of the condensing pipe 712 and then flows onto the second limiting member 720, and then penetrates into the condensate containing member through the second anti-splash holes 7201, thereby realizing precise control of the liquid flow, preventing liquid splashing, and reducing the liquid level fluctuation in the condensate containing member.

[0109] Specifically, in this embodiment, the size and distribution of the second anti-splash holes 7201 can be adaptively adjusted to achieve fine control of the liquid inflow speed and flow rate, so as to ensure that the condensed liquid can enter the condensate containing member evenly and stably.

[0110] Please refer to Figure 4 、 Figure 8 and Figure 9 . Further, in an optional embodiment, the direct air-cooling assembly 700 further includes a fixing member 721. A plurality of second pipe holes 7211 are provided on the fixing member 721, and the condensing pipe 712 is arranged in one-to-one correspondence with the second pipe holes 7211 and penetrates through the second pipe holes 7211.

[0111] In this embodiment, the direct air-cooling assembly 700 further includes a fixing member 721. The fixing member 721 is provided with second pipe holes 7211 corresponding to the condensing pipe 712 to fix the condensing pipe 712 and prevent displacement or deformation problems caused by vibration or external forces.

[0112] Specifically, the distribution of the second pipe holes 7211 can be set according to the arrangement of the condensing pipe 712, and this embodiment does not impose any limitation on this. Exemplarily, the condensing pipe 712 is arranged in a crosswise manner, and the second pipe holes 7211 are arranged in one-to-one correspondence with the condensing pipe 712.

[0113] Please refer toFigure 4 and Figure 5 Further, in an alternative embodiment, the direct air cooling assembly 700 further includes a vacuum pump 722 and a vacuum port 723. The vacuum port 723 is located above the first restricting member 719, and the suction end of the vacuum pump 722 extends into the vacuum port 723.

[0114] In this embodiment, to avoid the problem of steam leakage in the first pipeline 613 when entering the steam accommodating member through the steam inlet 711, the direct air cooling assembly 700 provided in this embodiment further includes a vacuum pump 722 and a vacuum port 723. The vacuum port 723 is located above the first restricting member 719, and the suction end of the vacuum pump 722 extends into the vacuum port 723 to suck the leaked steam, thereby ensuring the smooth progress of the condensation process.

[0115] Those skilled in the art will readily conceive of other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include known common knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and examples are only illustrative, and the true scope and spirit of the present application are pointed out by the following claims.

[0116] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A solar thermal power generation system, characterized in that, Including: A mirror field for concentrating direct solar light; An air-cooled tower disposed at the center of the mirror field; A collector disposed at the top of the air-cooled tower, the collector collecting the direct solar light concentrated by the mirror field and converting it into heat energy; A circulation assembly disposed inside the air-cooled tower, the circulation assembly being connected to the collector; An anti-vibration assembly disposed below the collector; A steam generation assembly; A direct air-cooling assembly disposed inside the air-cooled tower, the direct air-cooling assembly being connected to the steam generation assembly through a first pipeline and a second pipeline, one end of the first pipeline and one end of the second pipeline being both located inside the direct air-cooling assembly; A first heat exchanger disposed on the first pipeline and connected to the circulation assembly.

2. The solar thermal power generation system according to claim 1, wherein The circulation assembly includes: A cold tank connected to the collector through a rising pipeline, a heat storage member being disposed inside the cold tank; A hot tank connected to the collector through a descending pipeline; A first circulation pump disposed on the cold tank, the first circulation pump being used to pump the heat storage member into the rising pipeline; A second circulation pump disposed on the hot tank, the second circulation pump being used to pump the heat storage member into the first heat exchanger.

3. The solar thermal power generation system according to claim 2, wherein, The circulation assembly further includes a third pipeline and a third circulation pump, two ends of the third pipeline being respectively connected to the hot tank and the cold tank, the third circulation pump being disposed on the third pipeline.

4. The solar thermal power generation system according to claim 3, wherein, Both the first pipeline and the third pipeline penetrate through the first heat exchanger, the liquid in the first pipeline absorbing the heat of the heat storage member in the third pipeline through the first heat exchanger to form steam, and the steam entering the direct air-cooling assembly through the second pipeline and being converted into liquid and flowing into the first pipeline.

5. The solar thermal power generation system according to claim 4, wherein, The steam generation assembly includes: A steam turbine connected to the direct air-cooling assembly through the first pipeline and the second pipeline; A condensate pump disposed on the first pipeline.

6. The solar thermal power generation system according to any one of claims 2-5, characterized in that, The direct air-cooling assembly includes: A steam accommodating member having a steam inlet and a plurality of first communication holes formed thereon; A plurality of condensate pipes having a steam inlet hole and a liquid outlet hole, the steam inlet hole being in one-to-one correspondence and communication with the first communication holes; A condensate liquid accommodating member connected to the liquid outlet hole, the condensate liquid accommodating member having a liquid outlet, the liquid outlet being connected to the first pipeline.

7. The solar thermal power generation system according to claim 6, characterized in that, The direct air-cooling assembly further includes: A fourth pipeline, one end of the fourth pipeline being connected to the condensate liquid accommodating member and the other end having a nozzle, the fourth pipeline being located above the steam accommodating member; A second heat exchanger disposed on the fourth pipeline; A fourth circulation pump disposed on the fourth pipeline; A fifth pipeline, two ends of the fifth pipeline being respectively connected to the hot tank and passing through the second heat exchanger; A fifth circulation pump disposed on the fifth pipeline.

8. The solar thermal power generation system according to claim 7, wherein The direct air-cooling assembly further includes: A first restricting member disposed above the steam accommodating member, the first restricting member having a first anti-splash hole and a first pipe hole, the end of the fourth pipeline having the nozzle extending into the first pipe hole; The second limiting member is disposed below the condensing pipe, and a second anti-splash hole is formed in the second limiting member.

9. The solar thermal power generation system according to claim 7, characterized in that The direct air cooling assembly further includes a fixing member, and a plurality of second pipe holes are formed in the fixing member. The condensing pipes correspond to the second pipe holes one by one and penetrate through the second pipe holes.

10. The solar thermal power generation system according to claim 8, characterized in that, The direct air cooling assembly further includes a vacuum pump and a vacuum port. The vacuum port is located above the first limiting member, and the suction end of the vacuum pump extends into the vacuum port.

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