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Composite foundation of large-diameter high-temperature fused salt storage tank and using method thereof

A high-temperature molten salt storage tank and composite technology, applied in infrastructure engineering, construction, etc., can solve the problems of insufficient design elements, thinness, and narrow application range

Pending Publication Date: 2020-10-20
POWERCHINA XIBEI ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The content of the existing relevant storage tank foundation specifications is slightly thin, the design elements are not considered comprehensive enough, and the scope of application is too narrow. Efficient heat preservation and heat insulation performance requirements

Method used

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  • Composite foundation of large-diameter high-temperature fused salt storage tank and using method thereof
  • Composite foundation of large-diameter high-temperature fused salt storage tank and using method thereof
  • Composite foundation of large-diameter high-temperature fused salt storage tank and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment provides a composite foundation for a large-diameter high-temperature molten salt storage tank, including a variable stiffness roof, a rigid bottom plate 6 and an outer ring wall 8, the variable stiffness roof is connected to the upper part of the outer ring wall 8, and the rigid bottom plate 6 and the outer ring wall 8 are integrally poured, the variable stiffness roof is close to the bottom of the storage tank 11, an outer insulation layer 5 is provided between the variable stiffness roof and the outer ring wall 8, and the variable stiffness roof and the rigid bottom plate 6 An intermediate thermal insulation filling layer 3 is provided in between, and the intermediate thermal insulation filling layer 3 is provided with compartment steel beams 4 at equal intervals along the vertical direction.

[0042]The composite foundation of this large-diameter high-temperature molten salt storage tank provided by the present invention directly bears the load of the...

Embodiment 2

[0044] On the basis of Example 1, this example provides a composite foundation for a large-diameter high-temperature molten salt storage tank. The variable stiffness roof includes a special-shaped ring beam 2 and a conical roof 1. The conical roof 1 is a Thick plate, the tapered top plate 1 is fixed on the inner ring of the special-shaped ring beam 2, the special-shaped ring beam 2 is set under the tank wall of the storage tank 11, and the tapered top plate 1 is close to the bottom plate of the storage tank 11. Such as figure 1 , figure 2 shown.

[0045] Wherein, in the figure, R0 is the radius of the cone surface, R1 is the radius of the storage tank 11 , R2 is the radius of the ring beam, and R3 is the radius of the outer ring wall 8 . During the construction of the variable stiffness roof, it is poured in five parts, which are the central part of the cone and the four 90° sectors in the circumferential direction of the cone. There is a temperature expansion joint 9 betwe...

Embodiment 3

[0048] On the basis of Embodiment 1, this embodiment provides a composite foundation for a large-diameter high-temperature molten salt storage tank. There is a temperature-measuring layer inside the rigid bottom plate 6, and multiple thermoelectric devices are evenly embedded in the temperature-measuring layer. Even, a plurality of ventilation pipes 7 are arranged under the temperature measuring layer, and the thermocouple electric signal is connected with a control cabinet, and the control cabinet is electrically connected with a fan and an alarm, and one end of the ventilation pipe 7 communicates with the air outlet of the fan.

[0049] Such as figure 2 and Image 6 Shown, ventilation pipe 7 one ends are 90 °, communicate with the air outlet of blower fan. The temperature-measuring thermocouples are evenly embedded in the circular bottom plate, and the thermocouples gather at one place at the edge of the foundation. Ventilation pipes 7 are arranged below the thermocouple l...

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Abstract

The invention provides a composite foundation of a large-diameter high-temperature fused salt storage tank and a using method thereof. The composite foundation comprises a variable rigidity top plate,a rigid base plate and an outer ring wall, wherein the variable rigidity top plate is connected with the outer ring wall, the rigid base plate is integrally poured with the outer ring wall, the variable rigidity top plate is tightly attached to the bottom of the storage tank, an outer thermal insulation layer is arranged between the variable rigidity top plate and the outer ring wall, an intermediate thermal insulation filling layer is arranged between the variable rigidity top plate and the rigid base plate, and warehouse separating steel beams are arranged in a vertical direction of the intermediate thermal insulation filling layer at equal intervals. According to the invention, load of a tank top, a tank wall and a tank body insulation layer and vertical pressure of fused salt in the storage tank are directly borne through the variable rigidity tapered top plate and a special-shaped ring beam, and all vertical loads and foundation reaction forces are borne through the rigid base plate; and the outer ring wall bears the lateral pressure of the upper fused salt and a thermal insulation material, the intermediate thermal insulation filling layer realizes thermal insulation and heat preservation, all parts are clear in division of labor and cooperatively work, and the composite foundation is new composite foundation capable of integrating bearing and insulating of the large-diameter high-temperature fused salt storage tank.

Description

technical field [0001] The invention belongs to the technical field of heat storage type large-diameter storage tank foundation structures, and in particular relates to a composite foundation of various large-diameter high-temperature molten salt storage tanks and a method for using the same. Background technique [0002] Steel storage tank foundations now belong to the professional field of petrochemical conventional energy structures, but in the field of new energy, especially in tower solar thermal power stations, it is necessary to provide a storage tank foundation that can store and store heat for a long time and efficiently . The content of the existing relevant storage tank foundation specifications is slightly thin, the design elements are not considered comprehensive enough, and the scope of application is too narrow. Efficient heat preservation and heat insulation performance requirements. At present, there are two difficulties and problems in the design of the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/38
CPCE02D27/38
Inventor 赵伟王迎春徐翔徐卫兵
Owner POWERCHINA XIBEI ENG
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