CN111911373B - Heat collection tower and tower type solar power generation system - Google Patents
Heat collection tower and tower type solar power generation system Download PDFInfo
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- CN111911373B CN111911373B CN202010635842.XA CN202010635842A CN111911373B CN 111911373 B CN111911373 B CN 111911373B CN 202010635842 A CN202010635842 A CN 202010635842A CN 111911373 B CN111911373 B CN 111911373B
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- 238000010248 power generation Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 11
- 238000012545 processing Methods 0.000 abstract description 11
- 238000009413 insulation Methods 0.000 description 30
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- 230000011218 segmentation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004035 construction material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
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- 230000017525 heat dissipation Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
- F03G6/065—Devices for producing mechanical power from solar energy with solar energy concentrating means having a Rankine cycle
- F03G6/067—Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/006—Methods of steam generation characterised by form of heating method using solar heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/70—Sealing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S2023/87—Reflectors layout
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model belongs to the technical field of energy utilization, and particularly discloses a heat collection tower and a tower type solar power generation system. The heat collection tower comprises a frame-type tower body, wherein the tower body comprises a plurality of vertical longitudinal supporting units and horizontal transverse supporting units, two ends of each transverse supporting unit are respectively connected with two adjacent longitudinal supporting units, each longitudinal supporting unit is formed by longitudinally splicing a plurality of first tower section units, each transverse supporting unit is formed by transversely splicing a plurality of second tower section units, two adjacent first tower section units are detachably connected, and two adjacent second tower section units are detachably connected. The tower type solar power generation system comprises the heat collection tower. The heat collection tower and the tower type solar power generation system provided by the utility model can reduce the construction cost of the heat collection tower and the tower type solar power system and improve the convenience of processing and carrying the tower body in the heat collection tower.
Description
Technical Field
The utility model relates to the technical field of energy utilization, in particular to a heat collection tower and a tower type solar power generation system.
Background
With the rapid increase of the social development on energy demands, solar energy is increasingly widely used as a clean and renewable energy source. The tower type solar power generation is a system for gathering sunlight onto a heat collector arranged in a heat collecting tower by adopting a large number of heliostats, and heating working media in the heat collector to generate steam so as to push a turbine generator to generate power.
In the conventional tower type solar power generation system, the heat collecting tower is usually formed by on-site concrete pouring, but for some remote areas or places inconvenient in transportation, the construction and construction of the heat collecting tower are difficult due to the difficulty in carrying out the transportation of the concrete. The prior art provides a steel structure sectional assembly type solar heat collection tower, which is formed by stacking a first tower body, a second tower body and a third tower body from top to bottom, wherein the first tower body, the second tower body and the third tower body are of conical structures with large lower parts and small upper parts, a heat absorption heat exchanger is arranged on an upper table surface of the first tower body, and the first tower body, the second tower body and the third tower body are stacked and then are connected through bolts to realize the assembly of the heat collection tower.
The heat collection tower that prior art provided, the body of a tower adopts segmentation test structure to assemble and forms, but because heat collection tower own size is great, and body of a tower segmentation size is great and the weight is heavier, and the transportation degree of difficulty of body of a tower segmentation is great, and transportation cost is higher, and body of a tower segmentation is damaged easily in the transportation and leads to whole body of a tower to be unable to use, increases the transport and the construction cost of heat collection tower.
Disclosure of Invention
An object of the present utility model is to provide a heat collecting tower, which reduces the difficulty and cost of handling the tower body construction materials of the heat collecting tower.
Another object of the present utility model is to provide a tower solar power generation system, which reduces the difficulty and cost of construction of the tower solar power generation system.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a heat collection tower, includes the body of a tower of frame-type, the body of a tower includes the vertical supporting element of a plurality of vertical settings and the horizontal supporting element that sets up of level, the both ends of horizontal supporting element respectively with adjacent two vertical supporting element is connected, vertical supporting element is formed along vertical concatenation by a plurality of first tower festival unit, horizontal supporting element is formed along horizontal concatenation by a plurality of second tower festival unit, and adjacent two first tower festival unit is dismantled and is connected, adjacent two second tower festival unit is dismantled and is connected.
As a preferred technical scheme of the heat collection tower, each first tower section unit and each second tower section unit are provided with connecting columns along two ends of the corresponding splicing direction, the connecting columns are provided with connecting holes along the corresponding splicing direction, and two adjacent first tower section units and two adjacent second tower section units are in threaded connection through the connecting columns.
As a preferred technical scheme of the heat collection tower, the heat collection tower further comprises a heat collection module arranged at the top of the tower body, an air inlet pipe and an air outlet pipe which are arranged in the tower body, the top end of the air inlet pipe is communicated with an air inlet of the heat collection module in a sealing manner, and the air outlet pipe is communicated with an air outlet of the heat collection module in a sealing manner.
As a preferred technical scheme of the heat collection tower, the cross-sectional area of the air outlet pipe is larger than that of the air inlet pipe.
As a preferred technical scheme of the heat collecting tower, the transverse supporting units are arranged at intervals along the height direction of the tower body, the air outlet pipes and the air inlet pipes are all arranged in multiple sections along the height direction of the tower body, each section of the air outlet pipes and each section of the air inlet pipes are all detachably connected with the corresponding transverse supporting units, and two adjacent sections of the air outlet pipes are connected with each other in a sealing mode and two adjacent sections of the air inlet pipes are connected with each other in a sealing mode.
As a preferred technical scheme of the heat collecting tower, each section of the air inlet pipe and each section of the upper end periphery and the lower end periphery of the air outlet pipe are outwards convexly provided with first connecting plates, the transverse supporting units are provided with connecting rods, the connecting rods are provided with second connecting plates, the first connecting plates and the second connecting plates are arranged in one-to-one correspondence, and the first connecting plates are in threaded connection with the second connecting plates.
As a preferred technical scheme of the heat collection tower, each section of the air outlet pipe and/or each section of the air inlet pipe comprises a first heat insulation pipe part and a second heat insulation pipe part which are vertically arranged, wherein the first heat insulation pipe part is positioned at the inner side of the second heat insulation pipe part, and heat insulation filler is filled between the first heat insulation pipe part and the second heat insulation pipe part.
As a preferred technical scheme of the heat collection tower, a notch inclined relative to the vertical direction is formed in the pipe wall of the first heat insulation pipe part, and the inclined direction of the notch along the outer side to the inner side of the first heat insulation pipe part is consistent with the corresponding air inlet pipe or the corresponding air flow direction in the air outlet pipe.
As a preferred technical scheme of the heat collection tower, the first heat insulation pipe part and the second heat insulation pipe part are connected by adopting a flexible piece.
A tower solar power generation system comprising a heat collection tower as described above.
The utility model has the beneficial effects that:
according to the heat collection tower provided by the utility model, the longitudinal support units are formed by splicing the plurality of first tower section units, the transverse support units are formed by splicing the plurality of second tower section units, so that the size and the quality of a single first tower section unit and a single second tower section unit can be reduced, the first tower section unit and the second tower section unit which are formed by processing can be transported to a place where the heat collection tower needs to be built, the processing and transportation convenience of the first tower section unit and the second tower section unit is improved, the construction of the heat collection tower is facilitated, and the processing and transportation cost of the tower body of the heat collection tower is reduced; and each longitudinal supporting unit is formed by splicing the first tower section units, so that the number and arrangement of the longitudinal supporting units can be set according to the requirements to form tower body structures with different shapes, namely, the tower body structures with different shapes can be formed by splicing the first tower section units and the second tower section units, the flexibility and the material universality of the tower body construction are improved, and the production cost of the heat collecting tower is reduced.
According to the tower type solar power generation system, the heat collection tower is adopted, so that the construction and maintenance cost of the tower type solar power generation system can be reduced.
Drawings
FIG. 1 is a schematic view of a heat collecting tower according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic view of a partial structure of a heat collecting tower according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a first tower section unit according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a first tower section unit according to another embodiment of the present utility model;
FIG. 6 is a schematic structural view of an air outlet pipe according to an embodiment of the present utility model;
FIG. 7 is a partial enlarged view at B in FIG. 6;
fig. 8 is a schematic longitudinal section of an air outlet pipe according to an embodiment of the present utility model.
The figures are labeled as follows:
1-a tower body; 11-a longitudinal support unit; 111-a first tower section unit; 1111-a first support bar; 1112-a second support bar; 1113-reinforcing bars; 12-a transverse support unit; 121-a second tower section unit; 13-connecting rods; 14-a second connection plate;
2-an air outlet pipe; 21-a first heat insulating pipe section; 211-notch; 22-a second heat insulating pipe section; 23-insulating filler; 24-a first connection plate; 241-first fixing hole; 25-connecting pipe sections;
3-an air inlet pipe;
4-a heat collection module; 41-heat collecting surface; 42-a heat exchange air duct;
5-a pull rod; 6-a third connecting plate; 7-butt joint pipe.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Fig. 1 is a schematic structural view of a heat collecting tower according to an embodiment of the present utility model, fig. 2 is a partial enlarged view of a portion a in fig. 1, and fig. 3 is a schematic structural view of a heat collecting tower according to an embodiment of the present utility model, as shown in fig. 1 to 3, where the embodiment provides a heat collecting tower, which is applied to a tower solar power generation system, and is configured to absorb energy of sunlight reflected by heliostats in the tower solar power generation system to heat wind in a circulation duct to generate thermal steam, so as to drive a turbine generator in the tower solar power generation system to generate power.
Specifically, the heat collecting tower mainly comprises a tower body 1, a heat collecting module 4, an air outlet pipe 2, an air inlet pipe 3 and the like. The tower body 1 is used for supporting the heat collecting module 4, the air outlet pipe 2 and the air inlet pipe 3, so that the heat collecting module 4 is positioned at a height and a position capable of better absorbing sunlight reflected by the heliostat; the heat collecting module 4 is arranged at the top end of the tower body 1 and is used for absorbing solar energy generated by sunlight reflected by heliostats, a heat exchange working medium and a heat exchange air duct 42 are arranged in the heat collecting module 4, the heat exchange air duct 42 is provided with an air inlet communicated with the air outlet pipe 2 and an air outlet communicated with the air inlet pipe 3, the heat exchange medium heats up after absorbing the solar energy and exchanges heat with wind in the heat exchange air duct 42, so that cold air entering the heat exchange air duct 42 from the air outlet pipe 2 is changed into hot air with higher temperature after exchanging heat with the heat exchange working medium in the heat exchange air duct 42, and the hot air flows into the steam turbine from the air inlet pipe 3 to push the generator to generate electricity. In this embodiment, the heat absorption and heat exchange principle of the heat collecting module 4 is common knowledge in the art, which is not the focus of the present utility model, and the present utility model will not be described in detail.
In this embodiment, as shown in fig. 1 and 2, the tower body 1 includes a plurality of vertically disposed longitudinal support units 11 and horizontally disposed transverse support units 12, the plurality of longitudinal support units 11 are disposed around the center of the tower body 1, and the transverse support units 12 are connected between adjacent longitudinal support units 11. Each longitudinal support unit 11 is formed by splicing a plurality of first tower section units 111 along the longitudinal direction, each transverse support unit 12 is formed by splicing a plurality of second tower section units 121 along the transverse direction, and two adjacent first tower section units 111 and two adjacent second tower section units 121 are detachably connected.
According to the heat collection tower provided by the embodiment, the longitudinal support units 11 are formed by splicing the plurality of first tower section units 111, the transverse support units 12 are formed by splicing the plurality of second tower section units 121, so that the size and the mass of the single first tower section units 111 and the single second tower section units 121 can be reduced, the first tower section units 111 and the second tower section units 121 formed by processing can be transported to places where the heat collection tower needs to be built, the processing and transportation convenience of the first tower section units 111 and the second tower section units 121 is improved, the construction of the heat collection tower is facilitated, and the processing and transportation cost of the tower body 1 is reduced; and because each longitudinal supporting unit 11 is formed by splicing the first tower section units 111, the number and arrangement of the longitudinal supporting units 11 can be set according to the requirements to form tower body 1 structures with different shapes, namely, the tower body 1 structures with different shapes can be formed by splicing the first tower section units 111 and the second tower section units 121, so that the flexibility and the material universality of the construction of the tower body 1 are improved, and the production cost of the heat collecting tower is reduced.
More preferably, in this embodiment, the tower body 1 is of a second regular polygon structure, and each of the longitudinal support units 11 is disposed corresponding to a side edge of the second regular polygon structure. The tower body 1 adopts a regular polygon prism structure shape, has strong structural stability, and can ensure that the orientation of the heat collecting surface 41 of the heat collecting tower is more favorable for receiving the orientation of sunlight reflected by heliostats. In other embodiments, the tower 1 may also have an irregular polygonal prism structure to adapt to different geographic environments and illumination environments. In another embodiment, the tower body 1 may be divided into multiple sections along the height direction, the cross-sectional shapes of two adjacent sections are different, and each section of tower body 1 is formed by splicing at least two first tower section units 111 and second tower section units 121. In the present embodiment, the tower body 1 is exemplified by a regular quadrangular prism structure, that is, the tower body 1 includes four longitudinal supporting units 11. It will be appreciated that the shape and height of the tower 1 may be specifically set according to the environment and topography of the heliostat field.
In this embodiment, preferably, multiple layers of transverse supporting units 12 are disposed at intervals along the height direction of the tower body 1, and each layer of transverse supporting unit 12 includes multiple transverse supporting units 12 connected to two adjacent longitudinal supporting units 11, where the multiple transverse supporting units 12 are disposed end to end.
In this embodiment, each of the first tower section unit 111 and the second tower section unit 121 includes one tower section, that is, the structure of the tower section is the same as that of the first tower section unit 111 and the second tower section unit 121, and a plurality of tower sections are spliced in the longitudinal direction to form the longitudinal support unit 11, and a plurality of tower sections are spliced in the transverse direction to form the transverse support unit 12. Preferably, the tower section is of a first regular polygon prism structure, so that the processing is convenient, the universality is high, and the splicing among the tower sections is facilitated. Fig. 4 is a schematic structural diagram of a first tower section unit 111 according to an embodiment of the present utility model, as shown in fig. 4, the first tower section unit 111 is a hollow frame structure, and includes a plurality of first support rods 1111 and a plurality of second support rods 1112 perpendicular to the first support rods 1111, wherein the plurality of first support rods 1111 are used for forming side edges of a first regular polygon prism structure, and top edges and bottom edges of the first regular polygon prism are each formed by surrounding a plurality of second support rods 1112. That is, both ends of each second support bar 1112 are vertically connected to the adjacent two first support bars 1111, and the adjacent support bars are welded to each other. The structure of the first tower section unit 111 is simple in structure and convenient to process, and the quality of the first tower section unit 111 can be reduced while the structural strength and rigidity of the first tower section unit 111 are ensured, so that the processing and carrying cost is reduced. To further improve the structural strength and rigidity of the first tower section unit 111, the first support bar 1111 is provided with a second support bar 1112 in the middle in the height direction, and a reinforcing bar 1113 is provided between two second support bars 1112 provided adjacently in the vertical direction, the reinforcing bar 1113 being provided obliquely.
In the present embodiment, the length of the first support bar 1111 is greater than the length of the second support bar 1112. Fig. 5 is a schematic structural diagram of a first tower section unit according to another embodiment of the present utility model, as shown in fig. 5, in another embodiment, the lengths of the first supporting rod 1111 and the second supporting rod 1112 may be the same, so that the first tower section unit has a regular hexahedral frame structure. It will be appreciated that the lengths of the first support pole 1111 and the second support pole 1112 may be set by themselves according to the handling and construction requirements, and that each first tower section unit 111 is adapted to the size of an existing container for ease of handling the first tower section unit 111 using a flatbed trailer.
Preferably, the second tower section unit 121 and the first tower section unit 111 have the same structure, and only during the splicing process, the second tower section unit 121 is rotated by 90 ° in a vertical plane relative to the first tower section unit 111, so that the first supporting rod 1111 longitudinally arranged in the first tower section unit 111 is transversely arranged, and the second supporting rod 1112 transversely arranged in the first tower section unit 111 is longitudinally arranged to form the second tower section unit 121. The first tower section unit 111 and the second tower section unit 121 are arranged to be of the same structure, so that the universality of the tower section structure can be improved, the processing of the tower section can be simplified, the processing and production cost of the tower section can be reduced, and the splicing of the transverse support unit 12 and the longitudinal support unit 11 can be facilitated. In other embodiments, the first tower section unit 111 and the second tower section unit 121 may be configured differently. In yet another embodiment, the first tower section unit 111 and the second tower section unit 121 may be irregularly polygonal prism structures.
In other embodiments, the first tower section unit 111 and/or the second tower section unit 121 may be formed from a plurality of tower section combinations, such as the first tower section unit 111 and/or the second tower section unit 121 may be formed from a plurality of tower section combinations of the same structure, or the first tower section unit 111 and/or the second tower section unit 121 may be formed from at least two different sized tower section combinations. That is, in the present utility model, the first tower section unit 111 and the second tower section unit 121 are an integral structure that can be assembled and carried independently, and the number, shape and size of the tower sections contained in the integral structure can be set according to the needs, and the present utility model will not be described in detail.
More preferably, in this embodiment, the first tower section unit 111 and the second tower section unit 121 are both in a regular quadrangular prism structure, so that the structural stability is strong, and the connection between the adjacent lateral support units 12 and the longitudinal support units 11 is facilitated. It is understood that the first tower section unit 111 and the second tower section unit 121 may also have other regular polygonal structures, such as regular triangular prisms, regular pentagonal prisms, regular hexagonal prism structures, and the like. And more preferably, the cross-sectional shape of the tower body 1 is adapted to the cross-sectional shape of the tower section so that the first tower section unit 111 and the second tower section unit 121 can be directly connected in surface-to-surface contact when the lateral support unit 12 and the longitudinal support unit 11 are docked, simplifying the connection between the lateral support unit 12 and the longitudinal support unit 11. When the cross-sectional shape of the tower body 1 is not identical to the cross-sectional shape of the tower section, for example, when the tower body 1 has a regular hexagonal prism structure and the tower section has a regular quadrangular prism structure, the first tower section unit 111 and the second tower section unit 121 may be connected by an auxiliary connection member.
In this embodiment, in order to ensure the convenience of splicing between the two adjacent first tower section units 111 and the two adjacent second tower section units 121, connecting columns are disposed at two ends of each first supporting rod 1111, and are disposed along the length direction of the first supporting rod 1111 and located outside the first supporting rod 1111, and the connecting columns are provided with connecting holes along the length direction of the first supporting rod 1111. When the adjacent two first tower section units 111 are spliced, the connection posts on the upper and lower adjacent two first support rods 1111 are connected by the screw rods penetrating through the connection holes. This kind of connected mode, convenient and fast is favorable to improving concatenation efficiency and dismouting convenience. Further, the first supporting rod 1111 is square steel, and connecting columns are arranged at the upper end and the lower end of the two side surfaces of the outer side of the tower section so as to improve connection stability. Further, two adjacent second support rods 1112 located on the same end face of the second regular polygon prism structure are respectively connected to two adjacent side faces of the same first support rod 1111, and the arrangement can enable notches at the upper end and the lower end of the first support rod 1111 to be exposed for being matched with convex columns on a flat trailer so as to facilitate the flat trailer to transport a tower section or be used for being matched with a container lifting tool to lift and transport. The lifting and carrying of the container spreader to the tower section can refer to the carrying of the container by the existing container spreader, and the description is omitted here.
In this embodiment, the air outlet pipe 2 and the air inlet pipe 3 are disposed inside the tower body 1, and since the temperature of the fluid in the air outlet pipe 2 is lower than the temperature of the fluid in the air inlet pipe 3, preferably, the cross-sectional area of the air outlet pipe 2 is smaller than the cross-sectional area of the air inlet pipe 3, so as to ensure that the air pressure in the air outlet pipe 2 is the same as the air pressure in the air inlet pipe 3, and ensure that the air flows in the air outlet pipe 2, the heat exchange air duct 42 of the heat collecting module 4 and the air inlet pipe 3 in sequence.
In this embodiment, the air outlet pipe 2 and the air inlet pipe 3 are divided into multiple sections along the height direction, and each section of air inlet pipe 3 and each section of air outlet pipe 2 are detachably connected with the transverse supporting unit 12. Fig. 6 is a schematic structural diagram of an air outlet pipe 2 according to an embodiment of the present utility model, and fig. 7 is a partial enlarged view of B in fig. 6, as shown in fig. 6 and 7, an upper end periphery and a lower end periphery of each section of the air outlet pipe 2 are each provided with a first connecting plate 24 protruding outwards, and the first connecting plate 24 is provided with a first fixing hole 241. The transverse supporting unit 12 is connected with a connecting rod 13, the connecting rod 13 is provided with a second connecting plate 14, the second connecting plate 24 is provided with second fixing holes, the second fixing holes are arranged in one-to-one correspondence with the first fixing holes 241, and the second fixing holes and the first fixing holes are used for penetrating threaded connecting pieces so as to realize threaded connection of each section of air inlet pipe 3 and the transverse supporting unit 12.
In this embodiment, the tower body 1 is in a regular quadrangular structure, the cross section of the air outlet pipe 2 is correspondingly arranged to be rectangular, and each side surface of the air outlet pipe 2 is correspondingly arranged with each side surface of the regular quadrangular. The first connecting plates 24 are disposed on at least two opposite sides of the two ends of the air outlet pipe 2, and the first connecting plates 24 are preferably disposed at intervals along the corresponding sides. The connecting rods 13 are arranged corresponding to the side surfaces of the air inlet pipes 3 where the first connecting plates 24 are arranged, and the first connecting plates 24 and the second connecting plates 14 are in one-to-one correspondence.
More preferably, the first connecting plates 24 at the upper and lower ends of each section of the air outlet pipe 2 are arranged in a one-to-one correspondence manner, so that the first connecting plates 24 at the corresponding positions of the two sections of the air outlet pipes 2 adjacent to each other can be in threaded connection with the same second connecting plate 14.
More preferably, sealing structures are arranged between the two adjacent sections of air inlet pipes 3 and between each section of air outlet pipes 2, and are used for preventing air flow from leaking from the joint of the two adjacent sections of air inlet pipes 3 or the air outlet pipes 2. And the sealing structure is made of high-temperature resistant materials, so that the normal operation of the sealing structure is prevented from being influenced by high-temperature air flow.
Fig. 8 is a schematic longitudinal section view of an air outlet pipe 2 according to an embodiment of the present utility model, as shown in fig. 8, each section of air outlet pipe 2 includes a first heat insulation pipe portion 21 and a second heat insulation pipe portion 22 that are vertically disposed, the first heat insulation pipe portion 21 is located inside the second heat insulation pipe portion 22, a cavity of the first heat insulation pipe portion 21 forms a channel for ventilation, a gap space is formed between an outer surface of the first heat insulation pipe portion 21 and an inner surface of the second heat insulation pipe portion 22, and a heat insulation filler 23 is filled in the gap space. The structural design of the air outlet pipe 2 can improve the heat insulation effect of the air outlet pipe 2, reduce the heat dissipation rate of air flow in the air outlet pipe 2 and ensure the temperature of the air flow flowing out of the air outlet pipe 2; and the material with different temperature resistance can be selected for the first heat insulation pipe part 21, the second heat insulation pipe part 22 and/or the heat insulation filler 23, so that the purposes of reducing the overall cost of the air outlet pipe 2 and improving the heat insulation effect of the air outlet pipe 2 are achieved.
Preferably, the first heat insulating pipe portion 21 is made of a material having a good high temperature resistance and a low thermal conductivity to ensure heat insulation and heat insulation performance of the first heat insulating pipe portion 21; the second heat insulation pipe part 22 is made of a metal material with high strength and low heat conduction coefficient so as to ensure the overall structural strength and rigidity of the air outlet pipe 2; the heat insulating filler 23 is formed by filling glass wool, rock wool, glass fiber and other materials so as to fill the gap between the first heat insulating pipe portion 21 and the second heat insulating pipe portion 22 as much as possible, thereby improving the heat insulating effect.
More preferably, the wall thickness of the first heat insulating pipe portion 21 is smaller than the wall thickness of the second heat insulating pipe portion 22 to reduce the mass of the air outlet pipe 2 while ensuring the structural strength and rigidity of the air outlet pipe 2.
Further, a notch 211 is formed on the wall of the first heat insulating pipe 21 and is inclined with respect to the vertical direction, and the inclined direction of the notch 211 along the outside-to-inside direction of the air outlet pipe 2 is consistent with the air flow direction in the air outlet pipe 2, that is, for the air outlet pipe 2, since the air flow in the air outlet pipe 2 flows downwards, the notch 211 is inclined downwards from the outside-to-inside direction of the air outlet pipe 2. The notch 211 can provide a deformation space for thermal expansion and contraction of the first heat-insulating pipe 21, so as to improve the structural stability of the first heat-insulating pipe 21. More preferably, the air outlet pipe 2 is provided with a plurality of gap groups at intervals along the length direction thereof, and each gap group is provided with a plurality of gaps 211 at intervals along the circumferential direction of the air outlet pipe 2. More preferably, the notches 211 of two adjacent notch groups are arranged in a staggered manner in the circumferential direction of the air duct.
Further, in order to improve the structural stability of the air outlet pipe 2, the first heat insulating pipe 21 and the second heat insulating pipe 22 are connected by a flexible member. In this embodiment, the flexible member is a tether made of a high temperature resistant material, specifically, a connection lug group is disposed on the inner surface of the second heat insulation tube 22 corresponding to each group of gaps, and a plurality of connection lugs are disposed on the connection lug group along the circumferential direction of the air outlet tube 2 at intervals, a rope perforation is formed on the connection lug, one end of the tether is fixed on the connection lug, and the other end of the tether sequentially passes through the first heat insulation tube 21 from two adjacent gaps 211 and then is connected with another connection lug. By arranging the tether to connect the first heat insulating pipe portion 21 and the second heat insulating pipe portion 22, the connection stability of the first heat insulating pipe portion 21 and the second heat insulating pipe portion 22 can be ensured, and the integrity of the air outlet pipe 2 can be ensured; and the tether has certain elasticity, so that the first heat insulation pipe part 21 has the allowance of vertical deformation and horizontal deformation; the connection between the first heat insulating pipe portion 21 and the second heat insulating pipe portion 22 is achieved by the notch 211, and it is possible to avoid providing a connection lug on the outer surface of the first heat insulating pipe portion 21, and to simplify the structure of the duct. In other embodiments, a connection lug may be provided on the outer surface of the first heat insulating pipe 21 to connect the tether between the first heat insulating pipe 21 and the second heat insulating pipe 22.
More preferably, the notches 211 in the notch group and the connecting lugs in the connecting lug group at the same height are sequentially connected along the circumferential direction of the air outlet pipe 2 by adopting the same tether according to the connection sequence of the connecting lugs, the notches 211, the connecting lugs, the notches 211 and … …, so that the connection stability and the connection convenience of the first heat insulating pipe portion 21 and the second heat insulating pipe portion 22 are improved.
In this embodiment, the structure of the air inlet pipe 3 is substantially the same as that of the air outlet pipe 2, and the structure of the air inlet pipe 3 will not be described in detail.
As shown in fig. 1 and 3, the heat collecting module 4 is disposed outside the top end of the tower body 1, preferably, in this embodiment, four heat collecting modules 4 are disposed, each heat collecting module 4 is disposed corresponding to one side of the regular quadrangular prism, and a side of the heat collecting module 4 away from the tower body 1 is a heat collecting surface 41. In other embodiments, the number of heat collecting modules 4 may be specifically set according to the shape of the tower 1, i.e. one heat collecting module 4 is provided on each side of the tower 1. The arrangement is beneficial to improving the heat collection efficiency of the heat collection tower, thereby improving the utilization efficiency of the heat collection tower to solar energy.
Further, the heat collecting surfaces 41 of each heat collecting module 4 are arranged obliquely downwards relative to the vertical surface, so that the heat collecting surfaces 41 can absorb solar energy reflected by heliostats more effectively. The included angle between the heat collecting surface 41 and the vertical plane may be specifically set according to the height of the heliostat, the height of the heat collecting module 4, and the angle of the heliostat, which is not specifically limited in this embodiment.
In this embodiment, the longitudinal section of the heat collecting module 4 is rectangular, and the side of the heat collecting module 4 facing the tower body 1 is inclined relative to the vertical plane and is connected with the tower body 1 through a pull rod 5, one end of the pull rod 5 is vertically connected with the side of the heat collecting module 4 facing the tower body 1, the other end of the pull rod 5 is detachably connected with the tower body 1 through a third connecting plate 6 and a threaded connecting piece, and in order to ensure the connection stability of the heat collecting module 4, the upper end and the lower end of the heat collecting module 4 are both connected with the pull rod 5, and the upper end and the lower end of the heat collecting module 4 are both provided with at least two pull rods 5 at intervals along the length direction thereof.
The heat collection module 4 is internally provided with a heat exchange air duct 42, and in order to realize the communication between the air inlet of the heat exchange air duct 42 and the air outlet pipe 2 and the communication between the air outlet of the heat exchange air duct and the air inlet pipe 3, the air inlet and the air outlet are respectively provided with a butt joint pipe 7, and the butt joint pipes 7 are vertically connected with the heat collection module 4. The upper ends of the air outlet pipe 2 and the air inlet pipe 3 are provided with horizontal pipe parts which are horizontally arranged, the tail ends of the horizontal pipe parts are provided with connecting pipe parts 25 which incline horizontally relative to each other, and the connecting pipe parts 25 are aligned with the corresponding butt joint pipes 7 and are in abutting joint with the end surfaces. In order to avoid gas leakage between the connection pipe portion 25 and the butt pipe 7, a sealing device is provided between the end surfaces of the connection pipe portion 25 and the butt pipe 7.
In this embodiment, the heat exchange channels 42 inside the heat collecting module 4 may be straight channels, serpentine channels or other existing shapes, and the structure of the heat collecting module 4 may take any form in the prior art, which is not limited in the present utility model.
The embodiment also provides a tower type solar power generation system, which comprises the heat collection tower.
Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.
Claims (9)
1. The heat collection tower is characterized by comprising a frame-type tower body (1), wherein the tower body (1) comprises a plurality of vertical supporting units (11) and horizontal supporting units (12) which are arranged vertically, two ends of each horizontal supporting unit (12) are respectively connected with two adjacent vertical supporting units (11), each vertical supporting unit (11) is formed by longitudinally splicing a plurality of first tower section units (111), each horizontal supporting unit (12) is formed by transversely splicing a plurality of second tower section units (121), each two adjacent first tower section units (111) are detachably connected, and each two adjacent second tower section units (121) are detachably connected;
the heat collection tower further comprises a heat collection module (4) arranged at the top of the tower body (1), and an air inlet pipe (3) and an air outlet pipe (2) which are arranged in the tower body (1), wherein the top end of the air inlet pipe (3) is communicated with an air inlet of the heat collection module (4) in a sealing way, and the air outlet pipe (2) is communicated with an air outlet of the heat collection module (4) in a sealing way; and a heat exchange air duct (42) is arranged in the heat collection module (4).
2. The heat collecting tower according to claim 1, wherein each first tower section unit (111) and each second tower section unit (121) are provided with connecting posts at both ends along the corresponding splicing direction, the connecting posts are provided with connecting holes along the corresponding splicing direction, and two adjacent first tower section units (111) and two adjacent second tower section units (121) are connected through the connecting posts in a threaded manner.
3. Heat collecting tower according to claim 1, characterized in that the cross-sectional area of the outlet pipe (2) is larger than the cross-sectional area of the inlet pipe (3).
4. The heat collection tower according to claim 1, wherein a plurality of transverse supporting units (12) are arranged at intervals along the height direction of the tower body (1), the air outlet pipes (2) and the air inlet pipes (3) are all arranged in multiple sections along the height direction of the tower body (1), each section of the air outlet pipes (2) and each section of the air inlet pipes (3) are all detachably connected with the corresponding transverse supporting units (12), and two adjacent sections of the air outlet pipes (2) and two adjacent sections of the air inlet pipes (3) are in sealing connection.
5. The heat collecting tower according to claim 4, wherein each section of the air inlet pipe (3) and each section of the air outlet pipe (2) are provided with first connecting plates (24) protruding outwards from the upper end periphery and the lower end periphery, the transverse supporting unit (12) is provided with a connecting rod (13), the connecting rod (13) is provided with second connecting plates (14), the first connecting plates (24) and the second connecting plates (14) are arranged in a one-to-one correspondence manner, and the first connecting plates (24) are in threaded connection with the second connecting plates (14).
6. Heat collecting tower according to claim 4, characterized in that each section of the air outlet pipe (2) and/or each section of the air inlet pipe (3) comprises a first heat insulating pipe portion (21) and a second heat insulating pipe portion (22) which are vertically arranged, the first heat insulating pipe portion (21) is positioned at the inner side of the second heat insulating pipe portion (22), and a heat insulating filler (23) is filled between the first heat insulating pipe portion (21) and the second heat insulating pipe portion (22).
7. The heat collecting tower according to claim 6, wherein a notch (211) inclined relative to the vertical direction is formed in the pipe wall of the first heat insulating pipe portion (21), and the inclined direction of the notch (211) from the outer side to the inner side of the first heat insulating pipe portion (21) is consistent with the air flow direction in the corresponding air inlet pipe (3) or air outlet pipe (2).
8. Heat collecting tower according to claim 6, wherein the first heat insulating pipe portion (21) and the second heat insulating pipe portion (22) are connected by a flexible member.
9. A tower solar power generation system comprising a thermal collection tower according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010635842.XA CN111911373B (en) | 2020-07-03 | 2020-07-03 | Heat collection tower and tower type solar power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010635842.XA CN111911373B (en) | 2020-07-03 | 2020-07-03 | Heat collection tower and tower type solar power generation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111911373A CN111911373A (en) | 2020-11-10 |
| CN111911373B true CN111911373B (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010635842.XA Expired - Fee Related CN111911373B (en) | 2020-07-03 | 2020-07-03 | Heat collection tower and tower type solar power generation system |
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| CN (1) | CN111911373B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6532953B1 (en) * | 2001-08-30 | 2003-03-18 | The Boeing Company | Geometric dome stowable tower reflector |
| WO2019095010A1 (en) * | 2017-11-15 | 2019-05-23 | Vast Solar Pty Ltd | A concentrated solar power receiver |
| CN109520155B (en) * | 2018-11-20 | 2020-08-07 | 深圳中科能投能源有限公司 | Heat collection module, heat collection device and tower type solar power generation system |
| CN109899997A (en) * | 2019-03-15 | 2019-06-18 | 东方电气集团东方锅炉股份有限公司 | A kind of tower photo-thermal power station heat dump high temperature insulating safeguard structure |
| CN211081117U (en) * | 2019-10-30 | 2020-07-24 | 乾日安全科技(北京)有限公司 | Air building dismantling machine |
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- 2020-07-03 CN CN202010635842.XA patent/CN111911373B/en not_active Expired - Fee Related
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Granted publication date: 20230428 |