CN111911373A - 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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- CN111911373A CN111911373A CN202010635842.XA CN202010635842A CN111911373A CN 111911373 A CN111911373 A CN 111911373A CN 202010635842 A CN202010635842 A CN 202010635842A CN 111911373 A CN111911373 A CN 111911373A
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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)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention belongs to the technical field of energy utilization, and particularly discloses a heat collecting tower and a tower type solar power generation system. The thermal-arrest tower includes the body of the tower of frame-type, the body of the tower includes the horizontal supporting element of the vertical supporting element of a plurality of vertical settings and level setting, horizontal supporting element's both ends respectively with adjacent two vertical supporting element connects, vertical supporting element is formed along vertical concatenation by a plurality of first tower festival units, horizontal supporting element is formed along horizontal concatenation by a plurality of second tower festival units, and adjacent two first tower festival unit can dismantle the connection, adjacent two the connection can be dismantled to the second tower festival unit. The tower type solar power generation system comprises the heat collecting tower. The heat collecting tower and the tower type solar power generation system provided by the invention can reduce the construction cost of the heat collecting tower and the tower type solar power generation system and improve the convenience in processing and carrying of the tower body in the heat collecting tower.
Description
Technical Field
The invention 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 energy demand in social development, solar energy is widely applied as a clean and renewable energy source. The tower type solar power generation is a system which adopts a large number of heliostats to gather sunlight on a heat collector arranged in a heat collecting tower, heats working media in the heat collector to generate steam and pushes a steam turbine generator to generate power.
In a conventional tower type solar power generation system, a heat collecting tower is usually formed by pouring concrete on site, but in some remote areas or places with inconvenient transportation, the concrete is difficult to transport, so that the construction and the construction of the heat collecting tower are difficult. The prior art provides a steel structure sectional assembly type solar heat collection tower, wherein the heat collection tower is formed by stacking a tower body I, a tower body II and a tower body III from top to bottom, the tower body I, the tower body II and the tower body III are frustum-shaped structures with large lower parts and small upper parts, a heat absorption heat exchanger is installed on an upper table top of the tower body I, and the tower body I, the tower body II and the tower body III are stacked and then connected through bolts to realize the assembly of the heat collection tower.
The heat collection tower that prior art provided, the body of the tower adopts segmentation examination structure to assemble and form, nevertheless because the size of heat collection tower itself is higher great, the body of the tower segmentation size is great and weight is heavier, the transportation degree of difficulty of body of the tower segmentation is great, and the cost of transportation is higher, and the body of the tower segmentation suffers damage easily in the transportation and leads to whole body of the tower unable to use, increases the transport and the construction cost of heat collection tower.
Disclosure of Invention
One object of the present invention is to provide a heat collecting tower to reduce the difficulty and cost of transporting the tower body construction material of the heat collecting tower.
Another object of the present invention is to provide a tower-type solar power generation system, which reduces the difficulty and cost of constructing the tower-type solar power generation system.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a thermal-arrest tower, includes the body of the tower of frame-type, the body of the tower includes the horizontal supporting element of the vertical supporting element of a plurality of vertical settings and level setting, horizontal supporting element's both ends respectively with adjacent two vertical supporting element connects, vertical supporting element is formed along vertically splicing by a plurality of first tower section units, horizontal supporting element is formed along transversely splicing by a plurality of second tower section units, and adjacent two the connection can be dismantled to first tower section unit, adjacent two the connection can be dismantled to second tower section unit.
As an optimal technical scheme of the heat collecting tower, connecting columns are arranged at two ends of each first tower section unit and each second tower section unit along the corresponding splicing direction, connecting holes are formed in the connecting columns along the corresponding splicing direction, and every two adjacent first tower section units and every 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, the air inlet pipe and the air outlet pipe are arranged inside 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 mode, and the air outlet pipe is communicated with an air outlet of the heat collection module in a sealing mode.
As a preferred technical scheme of the heat collecting tower, the cross section area of the air outlet pipe is larger than that of the air inlet pipe.
As a preferred technical scheme of heat collection tower, horizontal supporting element follows the direction of height interval of tower body is provided with a plurality ofly, go out the tuber pipe and the air-supply line all follows the direction of height of tower body is provided with the multistage, every section go out the tuber pipe and every section the air-supply line all can be dismantled with the horizontal supporting element who corresponds and be connected, adjacent two sections go out between the tuber pipe and adjacent two sections sealing connection between the air-supply line.
As an optimal technical scheme of a heat collection tower, every section the air inlet pipe and every section the upper end periphery and the lower extreme periphery of air-out pipe all outwards are equipped with first connecting plate to the evagination, be provided with the connecting rod on the horizontal supporting unit, be provided with the second connecting plate on the connecting rod, first connecting plate with the setting of second connecting plate one-to-one, just first connecting plate with second connecting plate threaded connection.
As a preferred technical scheme of heat-collecting tower, every section the tuber pipe and/or every section the air-supply line all includes the first thermal-insulated pipe portion and the thermal-insulated pipe portion of second of vertical setting, first thermal-insulated pipe portion is located the inboard of the thermal-insulated pipe portion of second, just first thermal-insulated pipe portion with it has thermal-insulated filler to fill between the thermal-insulated pipe portion of second.
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 portion, and the inclined direction of the outer side of the notch towards the inner side of the first heat insulation pipe portion is consistent with the air flow direction in the corresponding air inlet pipe or air outlet pipe.
As a preferable technical solution of the heat collecting tower, the first heat insulating pipe portion and the second heat insulating pipe portion are connected by a flexible member.
A tower solar power system comprising a heat collection tower as described above.
The invention has the beneficial effects that:
according to the heat collection tower provided by the invention, the plurality of first tower section units are spliced to form the longitudinal supporting unit, the plurality of second tower section units are spliced to form the transverse supporting unit, the size and the quality of a single first tower section unit and a single second tower section unit can be reduced, the processed first tower section unit and the processed second tower section unit 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 building of the heat collection tower is facilitated, and the processing and transportation cost of a tower body of the heat collection tower is reduced; and because every vertical supporting unit is formed by the concatenation of first tower section unit, can set up the number of vertical supporting unit and arrange the tower body structure that forms different appearances according to the demand, the tower body structure of different appearances all can be formed by the concatenation of first tower section unit and second tower section unit promptly, improves the flexibility and the material commonality of tower body construction, reduces the manufacturing cost of heat collection tower.
According to the tower type solar power generation system, the construction and maintenance cost of the tower type solar power generation system can be reduced by adopting the heat collecting tower.
Drawings
FIG. 1 is a schematic structural diagram of a heat collection tower provided by an embodiment of the present invention;
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 collection tower provided in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a first tower section unit provided by an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a first tower section unit according to another embodiment of the present invention;
fig. 6 is a schematic structural view of an air outlet pipe provided in the embodiment of the present invention;
FIG. 7 is a partial enlarged view at B in FIG. 6;
fig. 8 is a schematic longitudinal sectional view of an air outlet pipe provided in the embodiment of the present invention.
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-stiffener; 12-a lateral support unit; 121-a second tower section unit; 13-a connecting rod; 14-a second connecting plate;
2-air outlet pipe; 21-a first insulating tube section; 211-notch; 22-a second insulating tube section; 23-insulating filler; 24-a first connection plate; 241-a first fixing hole; 25-connecting the tube portions;
3-an air inlet pipe;
4-a heat collecting module; 41-heat collecting surface; 42-heat exchange air duct;
5-a pull rod; 6-a third connecting plate; 7-butt joint pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Fig. 1 is a schematic structural diagram of a heat collecting tower according to an embodiment of the present invention, fig. 2 is a partial enlarged view of a position a in fig. 1, and fig. 3 is a schematic partial structural diagram of a heat collecting tower according to an embodiment of the present invention, and as shown in fig. 1 to fig. 3, the embodiment provides a heat collecting tower, which is applied to a tower-type solar power generation system, and is used for absorbing energy of sunlight reflected by a heliostat in the tower-type solar power generation system to heat wind in a circulation air duct to generate hot steam so as to drive a turbine generator in the tower-type solar power generation system to generate power.
Specifically, the heat collection tower mainly comprises a tower body 1, a heat collection 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 collection module 4, the air outlet pipe 2 and the air inlet pipe 3, so that the heat collection module 4 is positioned at a height and a position capable of better absorbing the reflected sunlight of the heliostat; the heat collection module 4 is arranged at the top end of the tower body 1 and used for absorbing solar energy generated by sunlight reflected by the heliostat, a heat exchange working medium and a heat exchange air duct 42 are arranged in the heat collection 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, a heat exchange medium absorbs the solar energy, then is heated and exchanges heat with air in the heat exchange air duct 42, and 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 flows into a steam turbine from the air inlet pipe 3 to. In this embodiment, the heat absorption and heat exchange principle of the heat collection module 4 is common knowledge in the art, and is not the focus of the present invention, and the present invention is not described in detail.
In the present embodiment, as shown in fig. 1 and 2, the tower body 1 includes a plurality of vertically arranged longitudinal support units 11 and horizontally arranged transverse support units 12, the plurality of longitudinal support units 11 are arranged around the center of the tower body 1, and the transverse support units 12 are connected between adjacent longitudinal support units 11. Each longitudinal supporting unit 11 is formed by splicing a plurality of first tower section units 111 in the longitudinal direction, each transverse supporting unit 12 is formed by splicing a plurality of second tower section units 121 in 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 collecting tower provided by the embodiment, the longitudinal supporting units 11 are formed by splicing the plurality of first tower section units 111, and the transverse supporting 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 unit 111 and the single second tower section unit 121 can be reduced, the processed first tower section unit 111 and the processed second tower section unit 121 can be transported to a place where the heat collecting tower needs to be built, the processing and transportation convenience of the first tower section unit 111 and the second tower section unit 121 is improved, the building of the heat collecting 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 as required 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 construction flexibility and material universality of the tower body 1 are improved, and the production cost of the heat collecting tower is reduced.
More preferably, in the present embodiment, the tower body 1 is a second regular polygonal column structure, and each longitudinal supporting unit 11 is disposed corresponding to a side edge of the second regular polygonal column structure. The tower body 1 is in a regular polygon prism structure shape, the structural stability is strong, and the orientation of the heat collection surface 41 of the heat collection tower can be ensured to be more favorable for receiving the direction of sunlight reflected by the heliostat. In another embodiment, the tower body 1 may be an irregular polygonal prism structure to adapt to different geographical environments and lighting environments. In another embodiment, the tower body 1 may be divided into a plurality of sections along the height direction thereof, the cross-sectional shapes of two adjacent sections are different, and each section of the tower body 1 is formed by splicing at least two first tower section units 111 and two second tower section units 121. In the present embodiment, the tower body 1 is taken as a regular quadrangular prism structure for example, 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 configured according to the environment and topography of the heliostat field.
In this embodiment, preferably, a plurality of layers of transverse supporting units 12 are arranged at intervals along the height direction of the tower body 1, each layer of transverse supporting unit 12 comprises a plurality of transverse supporting units 12 connected to two adjacent longitudinal supporting units 11, and the plurality of transverse supporting units 12 are arranged end to end.
In this embodiment, the first tower section unit 111 and the second tower section unit 121 each include 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, 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 sections are of a first regular polygon prism structure, so that the tower sections are convenient to process and high in universality, and splicing among the tower sections is facilitated. Fig. 4 is a schematic structural diagram of the first tower section unit 111 according to an embodiment of the present invention, as shown in fig. 4, the first tower section unit 111 is a hollow frame structure, and includes a plurality of first supporting rods 1111 and a plurality of second supporting rods 1112 perpendicular to the first supporting rods 1111, the plurality of first supporting rods 1111 are used to form side edges of the first regular polygon prism structure, and both a top edge and a bottom edge of the first regular polygon prism are surrounded by the plurality of second supporting rods 1112. That is, two ends of each second supporting rod 1112 are perpendicularly connected to two adjacent first supporting rods 1111, and the adjacent supporting rods are connected by welding. This kind of structure of first tower section unit 111, simple structure, processing is convenient, and can alleviate first tower section unit 111's quality when guaranteeing first tower section unit 111 structural strength and rigidity, reduces processing and handling cost. In order to further improve the structural strength and rigidity of the first tower section unit 111, the second support rods 1112 are arranged in the middle of the first support rod 1111 in the height direction, a reinforcement rod 1113 is arranged between two adjacent second support rods 1112 in the vertical direction, and the reinforcement rod 1113 is arranged in an inclined manner.
In this embodiment, the length of the first supporting rod 1111 is greater than the length of the second supporting rod 1112. Fig. 5 is a schematic structural diagram of a first tower section unit according to another embodiment of the present invention, and 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 rods 1111 and the second support rods 1112 can be set according to transportation and construction requirements, and each first tower section unit 111 is adapted to the size of the existing container in order to facilitate transportation of the first tower section unit 111 using a flat-bed 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 the vertical plane relative to the first tower section unit 111, so that the first support rod 1111 longitudinally arranged in the first tower section unit 111 is transversely arranged, and the second support 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, the universality of the tower section structure can be improved, the processing of the tower section is simplified, the processing and production cost of the tower section is reduced, and the splicing of the transverse supporting unit 12 and the longitudinal supporting unit 11 is facilitated. In other embodiments, the first tower section unit 111 and the second tower section unit 121 may be different in structure. In other embodiments, the first tower section unit 111 and the second tower section unit 121 may be irregular polygonal structures.
In other embodiments, the first tower section unit 111 and/or the second tower section unit 121 may be formed by a combination of a plurality of tower sections, for example, the first tower section unit 111 and/or the second tower section unit 121 may be formed by a combination of a plurality of tower sections of the same structure, or the first tower section unit 111 and/or the second tower section unit 121 may be formed by a combination of at least two tower sections of different sizes. That is, in the present invention, 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 included in the interior thereof can be set by oneself according to the requirements.
More preferably, in the present embodiment, the first tower section unit 111 and the second tower section unit 121 are both of a regular quadrangular prism structure, which has strong structural stability and is beneficial to the connection between the adjacent transverse support units 12 and the longitudinal support units 11. It is understood that the first tower section unit 111 and the second tower section unit 121 may also be other regular polygonal prism structures, such as regular triangular prism, regular pentagonal prism, 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 when the lateral support units 12 and the longitudinal support units 11 are butted, the first tower section unit 111 and the second tower section unit 121 can be directly connected in surface-to-surface contact, simplifying the connection between the lateral support units 12 and the longitudinal support units 11. When the cross-sectional shape of the tower body 1 is not identical to that 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, to ensure the convenience of splicing between two adjacent first tower section units 111 and 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 connecting holes are formed in the connecting columns along the length direction of the first supporting rod 1111. When two adjacent first tower section units 111 are spliced, connecting columns on two adjacent first supporting rods 1111 are connected through screws penetrating through the connecting holes. This kind of connected mode, convenient and fast is favorable to improving concatenation efficiency and dismouting convenience. Further, first bracing piece 1111 is the square steel, and its upper and lower both ends that are located the both sides face in the tower section outside all are provided with the spliced pole to improve connection stability. Further, two adjacent second bracing pieces 1112 that are located the same terminal surface of the positive polygon prism structure of second are connected respectively in the adjacent both sides face of same first bracing piece 1111, and this kind of setting can make the upper and lower both ends notch of first bracing piece 1111 expose for cooperate with the projection on the platform trailer, transport the tower section with the convenient platform trailer, or be used for cooperating container spreader to hoist and mount the transport. The container spreader can refer to the existing container spreader for carrying the container in the hoisting process of the tower section, and the process is not repeated 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 inside the air outlet pipe 2 is lower than the temperature of the fluid inside 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 inside the air outlet pipe 2 is the same as the air pressure inside the air inlet pipe 3, and ensure that the air flows through the air outlet pipe 2, the heat exchange air duct 42 of the heat collection module 4, and the air inlet pipe 3.
In this embodiment, go out tuber pipe 2 and air-supply line 3 and all divide into the multistage along the direction of height, every section air-supply line 3 and every section play tuber pipe 2 all can dismantle with horizontal support element 12 and be connected, and this kind of mode of setting is favorable to going out the processing and the equipment of tuber pipe 2 and air-supply line 3. Fig. 6 is a schematic structural view of the outlet duct 2 according to the embodiment of the present invention, fig. 7 is a partial enlarged view of B in fig. 6, as shown in fig. 6 and 7, the upper end periphery and the lower end periphery of each outlet duct 2 are both provided with a first connecting plate 24 protruding outwards, and the first connecting plate 24 is provided with a first fixing hole 241. Connecting rod 13 is connected to horizontal supporting element 12, is provided with second connecting plate 14 on the connecting rod 13, has seted up the second fixed orifices on the second connecting plate 24, and the second fixed orifices sets up with first fixed orifices 241 one-to-one, and second fixed orifices and first fixed orifices are used for wearing to establish threaded connection spare to realize every section air-supply line 3 and horizontal supporting element 12's threaded connection.
In this embodiment, the tower body 1 is a regular quadrangular prism 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 prism. The above-mentioned 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 located, and the first connecting plates 24 correspond to the second connecting plates 14 one by one.
More preferably, the first connecting plates 24 at the upper and lower ends of each 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 two air outlet pipes 2 adjacent to each other up and down can be in threaded connection with the same second connecting plate 14.
More preferably, a sealing structure is arranged between two adjacent segments of the air inlet pipes 3 and between each segment of the air outlet pipe 2, so as to prevent the air flow from leaking from the joint of the two adjacent segments of the 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 airflow.
Fig. 8 is a schematic longitudinal sectional view of an air outlet pipe 2 according to an embodiment of the present invention, as shown in fig. 8, each air outlet pipe 2 includes a first insulating pipe 21 and a second insulating pipe 22, which are vertically disposed, the first insulating pipe 21 is located inside the second insulating pipe 22, a cavity of the first insulating pipe 21 forms a passage for ventilation, a gap space is formed between an outer surface of the first insulating pipe 21 and an inner surface of the second insulating pipe 22, and the gap space is filled with an insulating filler 23. 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 the airflow in the air outlet pipe 2 and ensure the temperature of the airflow flowing out of the air outlet pipe 2; and can be through to the first thermal-insulated tub of portion 21, the thermal-insulated tub of portion 22 of second and/or thermal-insulated filler 23 selection different temperature resistance performance's material to reach when reducing the tuber pipe 2 overall cost, improve the purpose of the thermal-insulated effect of keeping warm of tuber pipe 2.
Preferably, the first insulating pipe portion 21 is made of a material having a good high temperature resistance and a low thermal conductivity, so as to ensure the heat insulation and heat shielding performance of the first 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 insulation filler 23 is formed by filling materials such as glass wool, rock wool and glass fiber, so that the gap between the first heat insulation pipe part 21 and the second heat insulation pipe part 22 is filled as much as possible, and the heat insulation effect is improved.
More preferably, the wall thickness of the first insulating tube portion 21 is smaller than that of the second insulating tube portion 22, so as to reduce the mass of the outlet duct 2 while ensuring the structural strength and rigidity of the outlet duct 2.
Further, the pipe wall of the first heat insulation pipe portion 21 is provided with a notch 211 inclined and arranged relative to the vertical direction, and the notch 211 is consistent with the air flowing direction in the air outlet pipe 2 along the inclined direction of the outer side of the air outlet pipe 2 towards the inner side, that is, for the air outlet pipe 2, because the air flowing downwards in the air outlet pipe 2, the notch 211 is inclined and arranged downwards towards the inner side from the outer side of the air outlet pipe 2. The setting of breach 211 can provide the deformation space for the expend with heat and contract with cold of first thermal-insulated tub of portion 21, improves the structural stability of first thermal-insulated tub of portion 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 insulation pipe portion 21 and the second heat insulation pipe portion 22 are connected by a flexible member. In this embodiment, the flexible member is the tether made by high temperature resistant material, specifically, the internal surface of second insulating tube portion 22 corresponds every group breach group and all is provided with the connection lug group, and connects lug group and be provided with a plurality of connection lugs along the circumference interval of air-out pipe 2, offers the rope perforation on the connection lug, and the one end of tether is fixed on connecting the lug, and the other end of tether is connected with another connection lug after passing first insulating tube portion 21 from two adjacent breachs 211 in proper order. The tether is arranged to connect the first heat insulation pipe part 21 and the second heat insulation pipe part 22, so that the connection stability of the first heat insulation pipe part 21 and the second heat insulation pipe part 22 can be ensured, and the integrity of the air outlet pipe 2 is ensured; and because the tether has certain elasticity, make the first insulating tube 21 have the allowance of vertical direction deformation and horizontal direction deformation; and utilize breach 211 to realize the connection between first thermal-insulated tub of portion 21 and the second thermal-insulated tub of portion 22, can avoid setting up the connection lug at the surface of first thermal-insulated tub of portion 21, simplify the structure of tuber pipe. In other embodiments, a connecting lug may be provided on the outer surface of the first insulating tube section 21 to connect the tether between the first insulating tube section 21 and the second insulating tube section 22.
More preferably, the notches 211 in the notch group and the connecting lugs in the connecting lug group which are located at the same height are sequentially connected along the circumferential direction of the air outlet pipe 2 by using the same tether according to the connection sequence of the connecting lugs, the notches 211, the connecting lugs, the notches 211 and the notches 211 … …, so that the connection stability and the connection convenience of the first insulating pipe part 21 and the second insulating pipe part 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 is not described in detail in this embodiment.
As shown in fig. 1 and 3, the heat collecting modules 4 are arranged at the top outer side of the tower body 1, preferably, in the present embodiment, four heat collecting modules 4 are arranged, each heat collecting module 4 is arranged corresponding to one side surface of a regular quadrangular prism, and a heat collecting surface 41 is arranged at one side surface of the heat collecting module 4 away from the tower body 1. In other embodiments, the number of the heat collecting modules 4 may be specifically set according to the shape of the tower body 1, that is, one heat collecting module 4 is disposed on each side surface of the tower body 1. The arrangement is favorable for improving the heat collection efficiency of the heat collection tower, so that the utilization efficiency of the heat collection tower to solar energy is improved.
Further, the heat collecting surface 41 of each heat collecting module 4 is disposed obliquely downward with respect to the vertical surface, so that the heat collecting surface 41 can more effectively absorb the solar energy reflected by the heliostat. The included angle of the heat collecting surface 41 relative to 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 thermal-arrest module 4 is the rectangle, and thermal-arrest module 4 towards the relative vertical plane slope of one side of body of the tower 1 and be connected through pull rod 5 between the body of the tower 1, the one end of pull rod 5 is connected perpendicularly with thermal-arrest module 4 towards the one side of body of the tower 1, the other end and the body of the tower 1 of pull rod 5 can dismantle through third connecting plate 6 and threaded connection spare and be connected, and for guaranteeing thermal-arrest module 4's connection stability, thermal-arrest module 4's upper end and lower extreme all are connected with pull rod 5, and thermal-arrest module 4's upper end and lower extreme are provided with two at least pull rods 5 along its equal interval of length direction.
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, butt-joint pipes 7 are arranged at the air inlet and the air outlet, 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 are relatively horizontally inclined, and the connecting pipe parts 25 are aligned with the corresponding butt joint pipes 7 and abutted to the corresponding butt joint pipes in an end face fitting mode. To avoid gas leakage between the connecting tube portion 25 and the butt pipe 7, a sealing device is provided between the connecting tube portion 25 and the end face of the butt pipe 7.
In this embodiment, the heat exchange channel 42 inside the heat collection module 4 may be a linear channel, a serpentine channel, or other existing shapes, and the structure of the heat collection module 4 may adopt any structural form in the prior art, which is not limited in the present invention.
The embodiment also provides a tower type solar power generation system which comprises the heat collecting tower.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention 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 invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The heat collection tower is characterized by comprising a frame-type tower body (1), wherein the tower body (1) comprises a plurality of vertically arranged longitudinal supporting units (11) and horizontally arranged transverse supporting units (12), two ends of each transverse supporting unit (12) are respectively connected with the corresponding adjacent two longitudinal supporting units (11), each longitudinal supporting unit (11) is formed by longitudinally splicing a plurality of first tower section units (111), each transverse supporting unit (12) is formed by transversely splicing a plurality of second tower section units (121), the adjacent two first tower section units (111) are detachably connected, and the adjacent two second tower section units (121) are detachably connected.
2. The heat collecting tower as claimed in claim 1, wherein connecting columns are respectively arranged at two ends of each first tower section unit (111) and each second tower section unit (121) along the corresponding splicing direction, connecting holes are formed in the connecting columns along the corresponding splicing direction, and two adjacent first tower section units (111) and two adjacent second tower section units (121) are respectively in threaded connection through the connecting columns.
3. The heat collection tower as claimed in claim 1, further comprising a heat collection module (4) disposed at the top of the tower body (1), and an air inlet pipe (3) and an air outlet pipe (2) disposed inside the tower body (1), wherein the top end of the air inlet pipe (3) is in sealed communication with an air inlet of the heat collection module (4), and the air outlet pipe (2) is in sealed communication with an air outlet of the heat collection module (4).
4. A heat collecting tower according to claim 3, characterized in that the cross-sectional area of the outlet duct (2) is larger than the cross-sectional area of the inlet duct (3).
5. The heat collection tower of claim 3, wherein the plurality of transverse support 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 arranged in multiple sections along the height direction of the tower body (1), each air outlet pipe (2) and each air inlet pipe (3) are detachably connected with the corresponding transverse support unit (12), and two adjacent air outlet pipes (2) and two adjacent air inlet pipes (3) are connected in a sealing manner.
6. The heat collecting tower according to claim 5, wherein each segment of the air inlet pipe (3) and each segment of the air outlet pipe (2) have a first connecting plate (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 a second connecting plate (14), the first connecting plate (24) and the second connecting plate (14) are arranged in a one-to-one correspondence, and the first connecting plate (24) is in threaded connection with the second connecting plate (14).
7. A heat collecting tower according to claim 5, characterized in that each segment of the outlet duct (2) and/or each segment of the inlet duct (3) comprises a first insulating duct portion (21) and a second insulating duct portion (22) arranged vertically, the first insulating duct portion (21) being located inside the second insulating duct portion (22), and an insulating filler (23) being filled between the first insulating duct portion (21) and the second insulating duct portion (22).
8. The heat collecting tower according to claim 7, wherein the wall of the first insulating pipe portion (21) is provided with a notch (211) inclined with respect to the vertical direction, and the direction of the inclination of the notch (211) from the outer side to the inner side of the first insulating pipe portion (21) is consistent with the direction of the airflow in the corresponding air inlet pipe (3) or air outlet pipe (2).
9. A heat collecting tower according to claim 7, characterized in that the first insulating tube section (21) and the second insulating tube section (22) are connected with a flexible element therebetween.
10. A tower solar power system comprising a heat collection tower as claimed in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010635842.XA CN111911373B (en) | 2020-07-03 | 2020-07-03 | Heat collection tower and tower type solar power generation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010635842.XA CN111911373B (en) | 2020-07-03 | 2020-07-03 | Heat collection tower and tower type solar power generation system |
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| CN111911373A true CN111911373A (en) | 2020-11-10 |
| CN111911373B CN111911373B (en) | 2023-04-28 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20030041856A1 (en) * | 2001-08-30 | 2003-03-06 | Blackmon James B. | Geometric dome stowable tower reflector |
| CN109520155A (en) * | 2018-11-20 | 2019-03-26 | 深圳东康前海新能源有限公司 | A kind of heat collecting module, heat collector and tower type solar electricity 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 |
| CN111542720A (en) * | 2017-11-15 | 2020-08-14 | 瓦斯特太阳能有限公司 | Centralized solar receiver |
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2020
- 2020-07-03 CN CN202010635842.XA patent/CN111911373B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030041856A1 (en) * | 2001-08-30 | 2003-03-06 | Blackmon James B. | Geometric dome stowable tower reflector |
| CN111542720A (en) * | 2017-11-15 | 2020-08-14 | 瓦斯特太阳能有限公司 | Centralized solar receiver |
| CN109520155A (en) * | 2018-11-20 | 2019-03-26 | 深圳东康前海新能源有限公司 | A kind of heat collecting module, heat collector and tower type solar electricity 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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| CN111911373B (en) | 2023-04-28 |
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