CN-122015298-A - Heat absorption tower structure with self-resetting energy consumption mechanism and construction method thereof

CN122015298ACN 122015298 ACN122015298 ACN 122015298ACN-122015298-A

Abstract

The invention belongs to the technical field of solar thermal power generation and heat absorption tower civil engineering structures, and particularly relates to a solar thermal power generation and heat absorption tower structure with a damage controllable self-resetting energy consumption mechanism and a construction method thereof. The integrated transition section is used for connecting a heat collector of the heat absorption tower and a lattice type bearing-heat dissipation integrated tower, the integrated transition section comprises a force transmission transition truss, a self-resetting energy consumption outer column and an inner side bearing-shear steel truss barrel, the inner side bearing-shear steel truss barrel comprises a plurality of rigid inner columns which are uniformly distributed around an inner ring of a surrounding central shaft of the force transmission transition truss, the plurality of self-resetting energy consumption outer columns are uniformly distributed around the outer ring of the surrounding central shaft of the force transmission transition truss, a heat collector steel structure pulls and presses the plurality of self-resetting energy consumption outer columns through swinging under the strong earthquake effect, the earthquake input energy is dissipated, and the rigid inner columns realize vertical bearing and side shearing resistance.

Inventors

KE KE
ZHOU XUHONG
LI HONGXING
LI HANJUN
HE XIUZHANG
Teng Minghong

Assignees

重庆大学

Dates

Publication Date: 20260512
Application Date: 20260215

Claims (10)

1. An integrated transition section of a heat absorption tower with a self-resetting energy consumption mechanism, wherein the integrated transition section (2) is used for connecting a heat collector (1) of the heat absorption tower and a lattice type bearing-heat dissipation integrated tower (4), and is characterized in that the integrated transition section (2) comprises a force transmission transition truss (20), a self-resetting energy consumption outer upright post (22) and an inner side bearing-shear steel truss tube (30), The inner side bearing-shear steel truss barrel (30) comprises a plurality of rigid inner columns (24) which are uniformly distributed around the inner ring of the central shaft of the force transmission transition truss (20), the bottom ends of the rigid inner columns (24) are connected with the top of the lattice type bearing-heat dissipation integrated tower (4), and the top of the rigid inner columns (24) is connected with the bottom of the upper butterfly-shaped heat collector assembly truss (21) through a rubber-metal multilayer composite support (25); The force transfer transition truss (20) comprises an upper butterfly-shaped heat collector assembling truss (21) and a lower supporting and connecting truss (23), wherein an assembling truss (26) for installing the heat collector (1) is arranged at the top of the upper butterfly-shaped heat collector assembling truss (21), the lower supporting and connecting truss (23) is welded at the top of the lattice type bearing-heat dissipation integrated tower (4), and the shape and the size of the bottom surface of the upper butterfly-shaped heat collector assembling truss (21) are matched with those of the top surface of the lower supporting and connecting truss (23); The self-resetting energy-consumption outer columns (22) are uniformly distributed around the outer ring of the transmission transition truss (20) around the central shaft and supported between the upper butterfly-shaped collector assembling truss (21) and the lower supporting connection truss (23) to form a peripheral bending-resistant self-resetting energy-consumption steel truss barrel. Through design and regulation, the self-resetting energy-consumption outer upright post (22) firstly enters a nonlinear stage under the strong earthquake effect, and the heat collector steel structure pulls and presses the self-resetting energy-consumption outer upright post (22) through swinging, so that earthquake input energy is dissipated.
2. The integrated transition section of a heat absorber tower with self-healing energy dissipation mechanism according to claim 1, wherein the rubber-metal multilayer composite support (25) comprises a composite layer structure formed by sequentially and alternately stacking and vulcanization bonding a plurality of layers of rubber and a plurality of layers of steel plates.
3. The integrated transition section of a heat absorption tower with self-resetting energy consumption mechanism according to claim 1, wherein the rigid inner upright (24) and the upper butterfly collector assembly truss (21) are further fixed by a reinforcing diagonal rod, and the adjacent two rigid inner uprights (24) are further fixed by a reinforcing diagonal rod.
4. The integrated transition section of the heat absorption tower with the self-resetting energy dissipation mechanism according to claim 1 is characterized in that the lattice type bearing-heat dissipation integrated tower (4) is of a hexagonal prestress steel pipe concrete tower structure, a hexagonal lattice type bearing tower column composed of six prestress hollow interlayer steel pipe concrete closing columns (31), reinforcing diagonal rods (41) are connected between two adjacent closing columns (31) and/or any two closing columns (31), the lattice type bearing-heat dissipation integrated tower (4) is composed together, a lower flange (42) used for being connected with a steel pile (5) is arranged at the lower portion of the closing column (31), a flange plate (3301) used for being connected with the bottom of the rigid inner column (24) is arranged at the top of the closing column (31), and a flange plate (3320) matched with the flange plate (3301) is arranged at the bottom of the rigid inner column (24).
5. The integrated transition section of a heat absorption tower with self-resetting energy consumption mechanism according to claim 4, wherein the tops of two adjacent combined columns (31) are connected by a ribbed steel plate-concrete sandwich composite wall (32), the sandwich composite wall (32) comprises two steel plates (3201) arranged in parallel and stiffening ribs (3202) arranged between the two steel plates (3201), and concrete poured between the steel plates (3201), and two ends of the steel plates (3201) are welded with the tops of the two adjacent combined columns (31) respectively.
6. The integrated transition section of the heat absorption tower with the self-resetting energy consumption mechanism according to claim 5, wherein the upper butterfly-shaped heat collector assembling truss (21) comprises a horizontally arranged annular upper supporting-shock-transmitting double-function underframe (211) and a butterfly-shaped top frame (212) arranged above the underframe (211) to jointly form a butterfly-shaped heat collector assembling truss structure, the top of the self-resetting energy consumption outer stand column (22) is fixed on the outer ring of the upper supporting-shock-transmitting double-function underframe (211), the top of the rigid inner stand column (24) is fixed on the inner ring of the upper supporting-shock-transmitting double-function underframe (211), and the assembling truss (26) is arranged at the inner ring of the butterfly-shaped top frame (212); The lower layer support connecting truss (23) is horizontally arranged and comprises an annular lower layer support-vibration transmission double-function top frame (231) and a bowl-shaped bottom frame (232) arranged below the top frame (231) to jointly form a bowl-shaped support truss structure, the middle part of the lower layer support connecting truss (23) is welded with the outer side wall of the top of the lattice type bearing-heat dissipation integrated tower (4), and the bottom of the self-reset energy consumption outer upright post (22) is fixed on the outer ring of the lower layer support-vibration transmission double-function top frame (231).
7. The integrated transition section of the heat absorption tower with the self-resetting energy consumption mechanism according to claim 1, wherein the prestressed hollow sandwich steel tube concrete column (31) comprises an outer steel tube (3101), an inner steel tube (3102), prestressed tendons (3103) and a ring partition plate (3104), the ring partition plate (3104) is welded on the inner wall of the outer steel tube (3101), the inner steel tube (3102) is inserted into a central hole of the ring partition plate (3104), the prestressed tendons (3103) are anchored in annular holes of the ring partition plate (3104), and concrete is poured in a cavity between the outer steel tube (3101) and the inner steel tube (3102).
8. The heat absorber integrated transition section with self-resetting energy consuming mechanism of claim 1, wherein each self-resetting energy consuming outer column (22) comprises a core unit, a peripheral constraint unit and a pre-stressed system.
9. A heat absorption tower structure with a self-resetting energy consumption mechanism, comprising a heat collector (1), a lattice type bearing-radiating integrated tower (4) and a steel pile (5) which are arranged from top to bottom, and further comprising a heat absorption tower integrated transition section with a self-resetting energy consumption mechanism according to any one of claims 1-8 for connecting the heat collector (1) and the lattice type bearing-radiating integrated tower (4).
10.A method of constructing an integrated transition section of a heat absorber tower with self-resetting energy consumption mechanism according to any of claims 1-9, comprising the steps of: s1, pre-positioning and pile sinking to form a steel pile (5); S2, manufacturing a lattice type bearing-radiating integrated tower (4) on the steel pile (5) on site, wherein the lower part of a column (31) of the lattice type bearing-radiating integrated tower (4) is fixedly connected with the steel pile (5) through a lower flange (42); S3, installing an inner side bearing-shear steel truss barrel (30) and a force transmission transition truss (20) of the integrated transition section (2) on the top of the lattice type bearing-heat dissipation integrated tower (4), and specifically comprising: The top of a column (31) of the lattice type bearing-heat dissipation integrated tower (4) is provided with a lower layer support connecting truss (23) in a welding and bolt connection mode; the top of the lattice type bearing-heat dissipation integrated tower (4) is provided with a rigid inner upright post (24) at the top of a closed post (31) through a flange plate (3301) and a matched flange plate (3320) so as to finish the installation of an inner bearing-shearing steel truss barrel (30) of the integrated transition section (2); An upper butterfly-shaped collector assembling truss (21) is arranged at the top of the inner bearing-shear steel truss barrel (30); s4, hoisting the heat collector (1) on site and installing the heat collector on an assembly truss (26); S5, positioning and installing the self-resetting energy consumption outer upright post (22) so as to eliminate initial stress, thereby ensuring that the upper butterfly-shaped heat collector assembly truss (21) can realize the designed swinging energy consumption and post-earthquake self-resetting function.

Description

Heat absorption tower structure with self-resetting energy consumption mechanism and construction method thereof Technical Field The invention belongs to the technical field of solar thermal power generation and heat absorption tower civil engineering structures, and particularly relates to a solar thermal power generation and heat absorption tower structure with a damage controllable self-resetting energy consumption mechanism and a construction method thereof. Background Solar thermal power generation is an important direction for constructing a novel clean low-carbon energy system. However, the earthquake intensity in areas with rich solar energy resources in China is generally high, and the earthquake intensity provides a serious challenge for the earthquake-resistant design of the heat absorption tower structure. In the traditional heat absorption tower system, the lower structure is mostly made of concrete, and the upper heat collector is of a steel structure. The structure has the problems of long construction period, multiple embedded parts and complex arrangement. More importantly, the energy consumption and shock absorption effects are poor, so that the structure is easy to damage in an earthquake, and the repair difficulty and the cost are high after the earthquake. Therefore, in order to more safely and efficiently utilize solar energy resources, a novel heat absorption tower structure capable of simplifying engineering procedures, shortening installation time and remarkably improving energy consumption, shock absorption and self-resetting capability is needed. Disclosure of Invention The invention aims to provide a solar thermal power generation heat absorption tower structure with a self-resetting energy consumption mechanism with controllable damage and a construction method thereof, so as to solve the problems of poor earthquake resistance, large post-earthquake residual deformation, difficult repair, long construction period and the like of the traditional heat absorption tower structure. The method aims to improve the energy consumption performance and the self-resetting capability of the heat absorption tower and realize the assembled rapid construction of the structure. In order to solve the technical problems, the invention is realized as follows: the embodiment of the invention provides an integrated transition section of a heat absorption tower with a self-resetting energy consumption mechanism, which is used for connecting a heat collector of the heat absorption tower and a lattice type bearing-heat dissipation integrated tower, and comprises a force transmission transition truss, a self-resetting energy consumption outer column and an inner side bearing-shear steel truss barrel, The inner side bearing-shear steel truss barrel comprises a plurality of rigid inner upright posts which are uniformly distributed around the inner ring of the central shaft of the force transfer transition truss, the bottom ends of the plurality of rigid inner upright posts are connected with the top of the lattice bearing-heat dissipation integrated tower, and the top of the plurality of rigid inner upright posts is connected with the bottom of the upper butterfly-shaped heat collector assembly truss through a rubber-metal multilayer composite support; the power transmission transition truss comprises an upper butterfly-shaped heat collector assembling truss and a lower support connecting truss, wherein the top of the upper butterfly-shaped heat collector assembling truss is provided with the assembling truss for installing the heat collector, the lower support connecting truss is welded at the top of the lattice type bearing-heat dissipation integrated tower, and the bottom surface of the upper butterfly-shaped heat collector assembling truss is matched with the top surface of the lower support connecting truss in shape and size; The self-resetting energy-consumption outer upright posts are uniformly distributed around the outer ring of the transmission transition truss around the central shaft, and are supported between the upper butterfly-shaped heat collector assembly truss and the lower support connection truss to form a peripheral bending-resistant self-resetting energy-consumption steel truss barrel. Through design and regulation, the self-resetting energy-consumption outer column firstly enters a nonlinear stage under the strong earthquake action, and the heat collector steel structure pulls and presses the self-resetting energy-consumption outer column through swinging, so that earthquake input energy is dissipated. Preferably, the rubber-metal multilayer composite support comprises a composite layer structure formed by sequentially and alternately overlapping, vulcanizing and bonding a plurality of layers of rubber and a plurality of layers of steel plates. Preferably, the rigid inner upright posts and the lower layer support connecting truss are fixed through reinforcing diagonal rods, and two a