Heat absorption tower of solar photo-thermal power station

Abstract

The utility model discloses a heat absorption tower of a solar photo-thermal power station, which comprises a lattice type tower frame, the lattice type tower frame comprises a plurality of concrete filled steel tube supporting columns which are arranged circumferentially, the plurality of concrete filled steel tube supporting columns extend upwards, the bottoms of the concrete filled steel tube supporting columns are fixed on a concrete foundation, and the space between any two adjacent concrete filled steel tube supporting columns is larger than the space between any two adjacent concrete filled steel tube supporting columns. A plurality of layers of horizontal beams are jointly connected at equal height, and a plurality of inclined support rods are arranged between the upper and lower adjacent horizontal beams of any two layers; the lattice type tower comprises a lattice type tower body and a plurality of concrete filled steel tube supporting columns, the concrete filled steel tube supporting columns which can be prefabricated in a factory are adopted, the lattice type tower body is formed by the cooperation of the horizontal beams and the inclined supporting rods, and the horizontal beams and the inclined supporting rods can be connected on site. And the construction difficulty and the manufacturing cost are superior to those of any conventional heat absorption tower structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of light and heat power station heat absorbing tower of solar energy, specifically relates to a solar light and heat power station heat absorbing tower. BACKGROUND

[0002] With the rapid development of solar light and heat power generation technology in China, tower type light and heat power stations are widely used in western regions rich in solar energy resources due to their heat and electricity cogeneration and energy storage advantages. The safety and economy of the heat absorbing tower, as the core high-rise structure supporting the heat absorber, directly affect the overall performance of the power station. Currently, the main heat absorbing tower structure adopts a concrete structure or a pure steel structure. The concrete structure needs to go through complex processes such as formwork erection, steel bar binding, concrete pouring and curing during construction, especially the high-rise tower body needs to be constructed in sections. The lower structure needs to meet the strength requirements before the upper part can be operated, which significantly prolongs the construction period. Although the pure steel structure shortens the construction period through factory prefabrication and on-site assembly, it requires a large amount of steel and has high costs.

[0003] From the aspect of structural performance, the existing light and heat tower structure also has certain limitations in terms of seismic performance and bearing capacity. The light and heat tower is a high-rise structure that needs to bear various loads, including the vertical load of the heat absorber, wind load, and horizontal load under the action of earthquakes. Under the action of earthquakes, according to relevant national regulations, the heat absorber horizontal load amplification effect and the along-wind vibration and cross-wind vibration under the action of wind load need to be considered. The concrete structure and the pure steel structure are difficult to meet the requirements of strength, stability and economy at the same time when dealing with these complex loads. The ductility of the concrete structure is relatively poor, and brittle failure may occur during earthquakes and other natural disasters, leading to structural collapse and causing significant economic losses and adverse social impacts. Although the pure steel structure has high strength, it has certain risks in terms of stability, especially in the case of high wind load, the lateral displacement may be large, affecting the safety of the structure. Moreover, as the tower height increases, the lateral stiffness of the pure steel structure is insufficient, and the lateral displacement under the action of wind load and earthquakes may exceed the specification limit, thereby affecting the precise focusing requirement of the heat absorber. In addition, the pure steel column is prone to local buckling under long-term alternating loads, which threatens the overall stability of the structure.

[0004] Therefore, it is necessary to propose a new type of heat absorbing tower structure for a solar light and heat power station that meets the requirements of rapid construction and sufficient structural strength. SUMMARY

[0005] The utility model provides a heat absorbing tower structure for a solar light and heat power station, which can be prefabricated and transported to the site for assembly, and the structure has sufficient strength.

[0006] In order to realize these objects and other advantages of the present application, a solar thermal power plant heat absorbing tower is provided, comprising: a lattice tower, which comprises a plurality of circumferentially arranged steel pipe concrete pillars, a plurality of the steel pipe concrete pillars extend upward, the bottom of the steel pipe concrete pillar is fixed on the concrete foundation, between any two adjacent steel pipe concrete pillars, a plurality of horizontal beams are connected in common at the same height, between any two layers of adjacent horizontal beams, a plurality of inclined struts are arranged; a heat absorber is arranged at the top of the lattice tower, and the heat absorber is supported by all the steel pipe concrete pillars.

[0007] Preferably, a plurality of steel pipe concrete pillars are arranged obliquely and gathered upward, and the slope of the steel pipe concrete pillar is 10:1~15:1.

[0008] Preferably, the lattice tower comprises four steel pipe concrete pillars which are inclined and gathered upward, a plurality of horizontal beams are arranged between the four steel pipe concrete pillars, the two ends of the horizontal beam are connected with the steel pipe concrete pillar, the middle part of any horizontal beam is connected with the middle part of the horizontally adjacent two horizontal beams by a horizontal support, and the middle part of any horizontal beam is connected with the two ends of the adjacent horizontal beam in the lower layer by an inclined strut.

[0009] Preferably, the bottom of the steel pipe concrete pillar is connected with a cross shear plate downward, and the cross shear plate is embedded in the concrete foundation.

[0010] Preferably, the outer periphery of the bottom of the steel pipe concrete pillar is provided with a circular column foot lower plate, the column foot lower plate is arranged on the concrete foundation, a plurality of ground anchor bolt holes are formed in the circumferential direction of the column foot lower plate, one ground anchor bolt is matched and arranged in each ground anchor bolt hole, the lower part of the ground anchor bolt is embedded in the concrete foundation, and the ground anchor bolt passes through the ground anchor bolt hole of the column foot lower plate.

[0011] Preferably, the bottom of the concrete pillar is further provided with a circular column foot upper plate, a plurality of vertical column foot stiffening plates are arranged between the column foot upper plate and the column foot lower plate, a ground anchor bolt hole corresponding to the position of the column foot lower plate is formed in the column foot upper plate, the ground anchor bolt is matched and arranged in the corresponding ground anchor bolt holes of the column foot upper plate and the column foot lower plate at the same time, the lower part of the ground anchor bolt is embedded in the concrete foundation, and the ground anchor bolt is bolted on the column foot upper plate.

[0012] Preferably, one or more annular stiffening plates are arranged between the column foot upper plate and the column foot lower plate, the annular stiffening plate is a cylindrical type, and is arranged at the outer periphery of the steel pipe concrete pillar.

[0013] Preferably, the bottom of the steel pipe concrete pillar is provided with an inner column stiffening plate, and the inner column stiffening plate is a cross-shaped steel plate arranged in the steel pipe of the steel pipe concrete pillar.

[0014] Preferably, the top of all the steel pipe concrete pillars is connected with a transfer floor support frame, the heat absorber comprises a plurality of heat absorber pillars, the bottom of the heat absorber pillars is fixedly connected with the transfer floor support frame, the transfer floor support frame comprises a plurality of column caps, the column caps are fixedly installed at the top end of the steel pipe concrete pillars, and a support beam is detachably connected between any two adjacent column caps.

[0015] Preferably, the column cap comprises an upper column cap plate and a lower column cap plate, the upper column cap plate and the lower column cap plate are horizontal ring-shaped plate bodies arranged at the outer periphery of the steel pipe concrete pillar, a plurality of vertical column cap vertical plates are arranged between the upper column cap plate and the lower column cap plate, the upper column cap plate and the lower column cap plate respectively extend two upper plate extensions and two lower plate extensions in the direction of the two adjacent column caps, a vertical connecting plate is vertically connected between the upper plate extension and the lower plate extension, one side edge of the vertical connecting plate is connected with the outer wall of the steel pipe concrete pillar, and the other side edge is located between the upper plate extension and the lower plate extension; the cross section of the support beam is in the shape of an I-beam, comprising an upper beam plate, a web plate and a bottom beam plate from top to bottom, the end of the support beam is located between the upper plate extension and the lower plate extension on the corresponding side and is attached to the corresponding plate surface, the end of the web plate is attached to the side edge of the vertical connecting plate, the upper beam plate and the web plate are bolted to the corresponding attached upper plate extension and lower plate extension respectively, and the web plate and the vertical connecting plate are fixedly connected through the connecting patch plates arranged on the two sides.

[0016] The utility model at least includes the following beneficial effects:

[0017] Firstly, the utility model adopts a steel pipe concrete pillar which can be prefabricated in a factory, or a circular steel pillar which is installed on site and then concrete is poured to form a steel pipe concrete pillar, other horizontal beams and inclined braces can be installed at the same time as the concrete is poured, the circular steel pillar can be used as a formwork for the concrete, and other construction progress is not affected, the steel pipe concrete pillar is matched with the horizontal beams and inclined brace rods which are connected on site to form a lattice tower, compared with the traditional concrete tower body structure, the construction efficiency is greatly improved, the components such as horizontal beams and inclined brace rods are designed in a standardized manner, can be quickly assembled on site through bolting, welding and other ways, further reduces the on-site workload, the energy consumption capacity and deformation control performance of the lattice tower formed by the steel pipe concrete pillars under high intensity earthquakes and strong wind loads are far superior to those of a steel structure lattice tower with the same amount of steel, and the construction difficulty and manufacturing cost of the utility model are superior to those of any conventional heat absorbing tower structure.

[0018] Second, the cross shear plate, column foot lower plate, column foot upper plate and various stiffening plates and other structures arranged at the bottom of the steel pipe concrete column in the utility model make the column foot better bear various complex forces, effectively transmit the load from the upper structure to the concrete foundation, enhance the stability of the connection between the whole tower and the foundation and guarantee the safe operation of the heat absorption tower under different working conditions.

[0019] Third, the conversion layer support frame arranged at the top of the lattice tower is installed and fixed through the column cap and support beam connection structure, and the detachable connection mode facilitates the maintenance and replacement of components of the heat absorber or the tower top structure in the later period, and improves the maintainability of the whole power station facility.

[0020] Other advantages, objects and features of the utility model will be embodied partly through the following description, and will be understood by those skilled in the art through research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is an overall schematic view of one of the technical solutions of the utility model;

[0022] Figure 2 It is a side view of one of the technical solutions of the utility model, wherein (a) is a side view of one of the heat absorption tower structures, and (b) is a side view of a rod of one of the heat absorption tower structures;

[0023] Figure 3 It is a bottom view of the steel pipe concrete column of one of the technical solutions of the utility model;

[0024] Figure 4 It is a horizontal sectional view of the bottom of the steel pipe concrete column of one of the technical solutions of the utility model;

[0025] Figure 5 It is a longitudinal sectional view of the bottom of the steel pipe concrete column of one of the technical solutions of the utility model;

[0026] Figure 6 It is a bottom view of the lattice tower of one of the technical solutions of the utility model;

[0027] Figure 7 It is an overall schematic view of the conversion layer support frame of one of the technical solutions of the utility model;

[0028] Figure 8 It is a plan view of the conversion layer support frame of one of the technical solutions of the utility model;

[0029] Figure 9 It is a column cap node schematic view of one of the technical solutions of the utility model;

[0030] Figure 10The utility model discloses a technical scheme column cap node connection schematic diagram.

[0031] ILLUSTRATIONS: 1-heat absorber, 11-heat absorber support, 2-lattice tower, 21-steel pipe concrete support, 210-column foot lower plate, 211-column foot upper plate, 212-column foot stiffening plate, 213-ring type stiffening plate, 22-horizontal beam, 221-horizontal support, 23-inclined support rod, 231-first support, 232-second support, 3-conversion layer support frame, 31-column cap, 311-column cap upper plate, 3111-upper plate overhanging part, 312-column cap vertical plate, 313-column cap lower plate, 3131-lower plate overhanging part, 314-vertical connecting plate, 3140-third bolt hole, 32-supporting beam, 321-beam upper plate, 322-beam web, 323-beam bottom plate, 324-beam stiffening plate, 325-supporting seat, 33-column cap stiffening plate, 34-connection board, 4-concrete foundation, 5-ground anchor bolt, 50-ground anchor bolt hole, 6-cross shear plate, 61-column inner stiffening plate. DETAILED DESCRIPTION

[0032] The utility model makes further detailed description in combination with the drawings below, so that the person skilled in the art can implement according to the description text.

[0033] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0034] It should be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the components described are all available from commercial channels unless otherwise specified. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "mount", "connect", "arrange" should be understood broadly, for example, it can be fixedly connected, arranged, or detachably connected, arranged, or integrally connected, arranged. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The orientation or position relationship indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0035] For example, Figures 1-10As shown, the technical scheme of the present application provides a solar thermal power station heat absorption tower, comprising: a lattice tower 2, which comprises a plurality of circumferentially arranged steel pipe concrete columns 21, a plurality of the steel pipe concrete columns 21 extend upward, the bottom of the steel pipe concrete column 21 is fixed on a concrete foundation 4, and any two adjacent steel pipe concrete columns 21 are connected by a plurality of horizontal beams 22 at the same height, and a plurality of inclined struts 23 are arranged between any two adjacent horizontal beams 22; a heat absorber 1 is arranged at the top of the lattice tower 2, and the heat absorber 1 is supported by all the steel pipe concrete columns 21. In the technical scheme, the steel pipe concrete column 21 is a column structure with a circular steel pipe outside and concrete inside, the steel pipe can constrain the internal concrete, so that the concrete is in a three-way compression state, thereby significantly improving the compressive strength and ductility of the concrete, the steel pipe concrete column 21 can be divided into a plurality of segments and assembled on site through flange plates and bolts, three or more steel pipe concrete columns 21 can be used in the lattice tower 2, and a frame system is formed between the steel pipe concrete columns 21 by the horizontal beams 22 and the inclined struts 23, wherein the horizontal beams 22 and the inclined struts 23 are steel pipe structures, connected by a mature steel structure joint form on the market, the column root of the steel pipe concrete column 21 and the concrete foundation 4 below can be integrally poured, or fixed by a pre-embedded part and a steel structure joint form, and the top of all the steel pipe concrete columns 21 can be connected to a support platform for supporting the heat absorber 1, and various pipelines in the heat absorber 1 are arranged in the middle part of the lattice tower 2.

[0036] In another technical scheme, a plurality of the steel pipe concrete columns 21 are arranged obliquely and gathered upward, the slope of the steel pipe concrete column 21 is 10:1~15:1, and when the obliquely arranged steel pipe concrete column 21 bears vertical load, the obliquely arranged column can decompose part of the vertical force into horizontal components, and these horizontal components form a more complex and effective force transmission path in the interior of the lattice tower 2 through the cooperation of the horizontal beams 22 and the inclined struts 23, so that the entire tower structure can bear the load more uniformly and reduce the stress concentration phenomenon of key nodes and components.

[0037] In another technical solution, the lattice tower 2 comprises four upwardly inclined and converging steel pipe concrete columns 21, and a plurality of horizontal beams 22 are arranged between the four steel pipe concrete columns 21, the two ends of the horizontal beams 22 are connected with the steel pipe concrete columns 21, and the middle part of any horizontal beam 22 is connected with the middle parts of the horizontally adjacent two horizontal beams through horizontal braces 221, and the middle part of any horizontal beam 22 is connected with the two ends of the horizontally adjacent horizontal beam 22 through inclined struts 23. In this technical solution, the four inclined and converging steel pipe concrete columns 21 provide reliable vertical bearing capacity, and the inclined layout mode can effectively convert the horizontal force into axial compression or tension of the columns through a reasonable angle when bearing the horizontal load, and the good compression and tension resistance of the steel pipe concrete is used to resist external force. In the horizontal direction, the plurality of horizontal beams 22 and the horizontal braces 221 cooperate with each other to enhance the horizontal stiffness of the tower, limit the displacement of each component in the horizontal direction, so that each part of the tower can deform cooperatively and bear the load when the tower is subjected to the horizontal load, thereby avoiding damage of local components due to excessive stress. The arrangement of the inclined struts 23 further optimizes the stress performance of the structure, which forms a plurality of triangular stable structures with the horizontal beams 22 and the steel pipe concrete columns 21, greatly improves the lateral force resistance of the tower, reduces the deformation of the structure under the action of the horizontal load, and ensures the stability of the entire tower. Optionally, as shown in Figure 6 the middle part of the body of the steel pipe concrete column 21 and the inclined strut 23, a horizontal first support 231 and an inclined second support 232 are further arranged, which further improve the bending and shearing resistance of the inclined strut 23. The inclined strut 23, the horizontal beam 22, the steel pipe concrete column 21, the horizontal brace 221, the first support 231 and the second support 232 can be connected through high-strength bolts in the form of mature ball nodes or patch nodes, or can be connected through welding.

[0038] In another technical solution, the bottom of the steel pipe concrete column 21 is connected with a cross shear plate 6, and the cross shear plate 6 is embedded in the concrete foundation 4. The cross shear plate 6 can significantly enhance the connection performance between the steel pipe concrete column 21 and the concrete foundation 4. In actual operation, when the horizontal load acts on the lattice tower 2, a large shear force is generated at the bottom of the steel pipe concrete column 21. The cross shear plate 6 effectively disperses the horizontal shear force to a larger range of the concrete foundation 4, thereby avoiding damage of the foundation or relative sliding between the column and the foundation due to local stress concentration.

[0039] In another technical solution, the outer periphery of the bottom of the steel pipe concrete column 21 is provided with a circular column base plate 210, which is arranged on the concrete foundation 4, and a plurality of ground anchor holes 50 are arranged on the periphery of the column base plate 210, and a ground anchor 5 is matched and arranged in each ground anchor hole 50. The lower part of the ground anchor 5 is embedded in the concrete foundation 4, and the ground anchor 5 passes through the ground anchor hole 50 of the column base plate 210. The column base plate 210 uniformly disperses the vertical load transmitted by the steel pipe concrete column 21, avoids local stress concentration of the foundation with horizontal load, and provides reliable uplift resistance for the lattice tower 2, effectively resisting the upward action caused by wind force, earthquake force and the like. Wherein, the ground anchor 5 and the concrete foundation 4 can be poured at the same time, or the threaded pre-buried is carried out when pouring the concrete foundation 4.

[0040] In another technical solution, the bottom of the concrete column 21 is further provided with a circular column top plate 211, a plurality of vertical column stiffening plates 212 are arranged between the column top plate 211 and the column base plate 210, and a plurality of ground anchor holes 50 are arranged on the column top plate 211 corresponding to the positions of the column base plate 210. The ground anchor 5 is matched and arranged in the corresponding ground anchor holes 50 of the column top plate 211 and the column base plate 210 at the same time. The lower part of the ground anchor 5 is embedded in the concrete foundation 4, and the ground anchor 5 is bolted to the column top plate 211. The column stiffening plate 212 optimizes the force transmission path, effectively shares the stress borne by the column top plate 211 and the column base plate 210, prevents the deformation or damage of the plate due to excessive stress, and improves the torsional performance of the column.

[0041] In another technical solution, one or more annular stiffening plates 213 are arranged between the column top plate 211 and the column base plate 210. The annular stiffening plate 213 is a cylindrical type, which is arranged on the outer periphery of the steel pipe concrete column 21. The annular stiffening plate 213 further enhances the shear and bending resistance of the column.

[0042] In another technical solution, the bottom of the steel pipe concrete column 21 is provided with a column inner stiffening plate 61, which is a cross-shaped steel plate arranged in the steel pipe of the steel pipe concrete column 21. The column inner stiffening plate 61 effectively improves the cooperative working capacity between the column bottom steel pipe and the concrete of the steel pipe concrete column 21. The cross-shaped structure can uniformly disperse the pressure to the steel pipe and the concrete, avoiding local stress concentration leading to crushing of the concrete or local buckling of the steel pipe.

[0043] In another technical solution, the top of all the concrete filled steel tube pillars 21 is connected with a conversion layer support frame 3, the heat sink 1 comprises a plurality of heat sink pillars 11, the bottom of the heat sink pillars 11 is fixedly connected with the conversion layer support frame 3, the conversion layer support frame 3 comprises a plurality of column caps 31, the column caps 31 are fixedly installed at the top end of the concrete filled steel tube pillars 21, and a support beam 32 is detachably connected between any two adjacent column caps 31, the bottom end of the heat sink pillars 11 is connected with the support beam 32. In this technical solution, as shown in Figure 2 the top of the lattice tower 2 needs to be fixedly connected with the support structure of the heat sink 1, the top of the lattice tower 2 needs to be adapted, and the conversion layer support frame 3 can be a lattice tower or a special tool support seat for the position of the heat sink pillars 11.

[0044] In another technical solution, the column cap 31 comprises a column cap upper plate 311 and a column cap lower plate 313, the column cap upper plate 311 and the column cap lower plate 313 are horizontal ring type plate bodies arranged around the concrete filled steel tube pillars 21, a plurality of vertical column cap vertical plates 312 are arranged between the column cap upper plate 311 and the column cap lower plate 313, the column cap upper plate 311 and the column cap lower plate 313 respectively extend two upper plate overhanging portions 3111 and two lower plate overhanging portions 3131 in the direction of the two adjacent column caps 3, a vertical connecting plate 314 is vertically connected between the upper plate overhanging portion 3111 and the lower plate overhanging portion 3131, one side edge of the vertical connecting plate 314 is connected with the outer wall of the concrete filled steel tube pillar 21, and the other side edge is located between the upper plate overhanging portion 3111 and the lower plate overhanging portion 3131; the cross section of the support beam 32 is an I-shaped section, comprising an upper beam plate 321, a web plate 322 and a bottom beam plate 323 from top to bottom, the end of the support beam 32 is located between the upper plate overhanging portion 3111 and the lower plate overhanging portion 3131 on the corresponding side and is respectively fitted with the corresponding plate surface, the end of the web plate 322 is fitted with the side edge of the vertical connecting plate 314, the upper beam plate 321 and the web plate 322 are respectively bolted with the corresponding fitted upper plate overhanging portion 3111 and lower plate overhanging portion 3131, and the web plate 322 and the vertical connecting plate 314 are fixedly connected through the connecting patch plates 34 arranged on both sides. In this technical solution, as shown in Figures 7-10As shown, the column cap upper plate 311 and the column cap lower plate 313 are sleeved on the top of the concrete-filled steel tubular column 21 and are connected by welding or other joint connection mode, the column cap vertical plate 312 is connected with the column cap upper plate 311, the column cap lower plate 313 and the outer wall of the concrete-filled steel tubular column 21 by welding, a plurality of column cap stiffening plates 33 are arranged below the column cap lower plate 313 and the lower plate extension part 3131, the column cap stiffening plates 33 are connected with the outer steel plate of the concrete-filled steel tubular column 21 by welding, the height of the support beam 32 is equal to the spacing between the upper plate extension part 3111 and the lower plate extension part 3131, the end of the support beam 32 can be put into the space between the upper plate extension part 3111 and the lower plate extension part 3131, wherein the beam upper plate 321 of the support beam 32 is connected with the upper plate extension part 3111 and the lower plate extension part 3131 by high-strength bolts respectively, at this time, the side edge of the vertical connecting plate 314 is connected with the web plate 322, wherein the vertical connecting plate 314 and the web plate 322 are provided with bolt through holes, two connecting plates 34 provided with matching through holes are attached to the two side surfaces of the vertical connecting plate 314 and the web plate 322, and bolts are arranged to connect the two connecting plates 34, the vertical connecting plate 314 and the web plate 322 into an integrated body, and welding operation is performed at the joint position of the connecting plate 34, the vertical connecting plate 314 and the web plate 322 after the bolts are connected.

[0045] In the technical solution, the support beam 32 is of an I-shaped section, the two sides of the web plate 322 between the beam upper plate 321 and the beam bottom plate 323 are connected by welding with a plurality of beam stiffening plates 324, the upper surface of the beam upper plate 321 is provided with a support seat 325, wherein the support seat 325 is provided with a threaded through hole matched with the bottom of the heat absorber column 11, and the heat absorber column 11 is connected with the support seat 325 by bolts.

[0046] In one calculation example, the heat absorption tower of a solar thermal power station is located in an area with a seismic fortification intensity of 7 degrees, a site category of II, a seismic group of the second group, a basic wind pressure of 0.9 kN / m 2 , a ground roughness of A type, and the structure bears not only the seismic and wind loads but also the heat absorber equipment load and the structure self weight. The structure has a floor area of 400 m 2 , a total height of 113.4 m, wherein the height of the lattice tower is 91.0 m, the height of the heat absorber is 22.4 m, the diameter of the concrete-filled steel tubular column is 600 mm, the concrete in the steel tube is C40 concrete, the diagonal bracing rods and the horizontal beams of the first and second floors are circular tubes with a specification of 462 mm*16 mm, and the steel consumption of the overall structure is reduced by 41% compared with the conventional steel tower, thereby saving a large amount of steel and achieving significant economic benefits.

[0047] The finite element calculation software is used for modeling and seismic analysis of the structure, under the action of 7 degrees of frequent earthquake, the maximum displacement of the structure vertex of the model is 29.5mm, the maximum value of the total displacement angle of the structure is 1 / 3844, meeting the requirement of "no damage under small earthquake", under the action of 7 degrees of rare earthquake, the maximum value of the inter-story displacement angle of the model is 1 / 206, less than the limit value 1 / 50 of the specification, meeting the requirement of "no collapse under large earthquake".

[0048] The number of devices and the scale of processing described herein are used to simplify the description of the present application. The application, modification and change of the present application are obvious to those skilled in the art.

[0049] Although the embodiments of the present application have been disclosed as above, it is not limited to the application and the modification and change of the present application are obvious to those skilled in the art. Therefore, the present application is not limited to the specific details and the figures shown and described herein without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A solar thermal power plant receiver tower, characterized in that, The utility model relates to a kind of lattice tower (2), including several circumferential arrangement of steel pipe concrete pillar (21), several steel pipe concrete pillar (21) extend upward, the bottom of steel pipe concrete pillar (21) is fixed on concrete foundation (4), and between any two adjacent steel pipe concrete pillar (21), multiple layers of horizontal beam (22) are connected with each other at the same height, and between any two layers of upper and lower adjacent horizontal beam (22), multiple oblique bracing (23) are arranged. Heat absorber (1) is arranged at the top of the lattice tower (2), and the heat absorber (1) is supported by all the steel pipe concrete pillars (21). Several steel pipe concrete pillars (21) are arranged obliquely and gathered upward, and the slope of the steel pipe concrete pillar (21) is 10:1-15:

1.

2. The solar thermal power plant receiver tower of claim 1, wherein, The lattice tower (2) includes four steel pipe concrete pillars (21) inclined and gathered upward, and multiple layers of horizontal beams (22) are arranged between the four steel pipe concrete pillars (21). The two ends of the horizontal beam (22) are connected with the steel pipe concrete pillars (21), and the middle part of any horizontal beam (22) is connected with the middle parts of the horizontally adjacent two horizontal beams by horizontal bracing (221), and the middle part of any horizontal beam (22) is connected with the two ends of the lower adjacent horizontal beam (22) by oblique bracing (23).

3. The solar thermal power plant receiver tower of claim 1, wherein, The bottom of the steel pipe concrete pillar (21) is connected with a cross shear plate (6), and the cross shear plate (6) is embedded in the concrete foundation (4).

4. The solar thermal power plant receiver tower of claim 1, wherein, The outer periphery of the bottom of the steel pipe concrete pillar (21) is provided with a circular column foot lower plate (210), which is arranged on the concrete foundation (4). A plurality of ground anchor bolt holes (50) are formed in the circumferential direction of the column foot lower plate (210). One ground anchor bolt (5) is matched and arranged in each ground anchor bolt hole (50). The lower part of the ground anchor bolt (5) is embedded in the concrete foundation (4), and the ground anchor bolt (5) passes through the ground anchor bolt hole (50) of the column foot lower plate (210).

5. The solar thermal power plant receiver tower of claim 1, wherein, The bottom of the concrete pillar (21) is also provided with a circular column foot upper plate (211), and a plurality of vertical column foot stiffening plates (212) are arranged between the column foot lower plate (210) and the column foot upper plate (211). The ground anchor bolt holes (50) corresponding to the column foot lower plate (210) are formed in the column foot upper plate (211). The ground anchor bolt (5) is matched and arranged in the corresponding ground anchor bolt holes (50) of the column foot upper plate (211) and the column foot lower plate (210). The lower part of the ground anchor bolt (5) is embedded in the concrete foundation (4), and the ground anchor bolt (5) is bolted to the column foot upper plate (211).

6. The solar thermal power plant receiver tower of claim 5, wherein, One or more annular stiffening plates (213) are arranged between the column foot upper plate (211) and the column foot lower plate (210). The annular stiffening plate (213) is a cylindrical type, which is arranged on the outer periphery of the steel pipe concrete pillar (21).

7. A solar thermal power plant receiver tower according to claim 6, wherein, ​ 8. The solar thermal power plant receiver tower of claim 4, wherein, The bottom of the steel pipe concrete column (21) is provided with a column inner stiffening plate (61), which is a cross-shaped steel plate arranged in the steel pipe of the steel pipe concrete column (21).

9. The solar thermal power plant receiver tower of claim 1, wherein, The top of all the steel pipe concrete columns (21) is jointly connected with a conversion layer support frame (3), the heat sink (1) comprises a plurality of heat sink columns (11), the bottom of the heat sink column (11) is fixedly connected with the conversion layer support frame (3), the conversion layer support frame (3) comprises a plurality of column caps (31), the column cap (31) is fixedly installed at the top end of the steel pipe concrete column (21), and any two adjacent column caps (31) are detachably connected with a support beam (32), and the bottom end of the heat sink column (11) is connected with the support beam (32).

10. A solar thermal power plant receiver tower according to claim 9, wherein, The column cap (31) comprises a column cap upper plate (311) and a column cap lower plate (313), the column cap upper plate (311) and the column cap lower plate (313) are horizontal ring-shaped plate bodies arranged on the outer periphery of the steel pipe concrete column (21), a plurality of vertical column cap vertical plates (312) are arranged between the column cap upper plate (311) and the column cap lower plate (313), the column cap upper plate (311) and the column cap lower plate (313) respectively extend two upper plate extension portions (3111) and two lower plate extension portions (3131) in the direction of the two adjacent column caps (31), a vertical connecting plate (314) is vertically connected between the upper plate extension portion (3111) and the lower plate extension portion (3131), one side edge of the vertical connecting plate (314) is connected with the outer wall of the steel pipe concrete column (21), and the other side edge is located between the upper plate extension portion (3111) and the lower plate extension portion (3131); The support beam (32) has an I-shaped cross section, comprising an upper beam plate (321), a web plate (322) and a bottom beam plate (323) from top to bottom, the end of the support beam (32) is located between the upper plate extension portion (3111) and the lower plate extension portion (3131) on the corresponding side and is fitted with the corresponding plate surface, the end of the web plate (322) is fitted with the side edge of the vertical connecting plate (314), the upper beam plate (321) and the web plate (322) are bolted with the upper plate extension portion (3111) and the lower plate extension portion (3131) fitted respectively, and the web plate (322) and the vertical connecting plate (314) are fixedly connected through the connecting patch plates (34) arranged on the two sides.

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