Molten salt heat supply and power generation device

Abstract

The utility model relates to the technical field of fused salt heat supply and power generation devices, and discloses a fused salt heat supply and power generation device which comprises a supporting base, a heat collection tower column and a fused salt heat collection tower, the heat collection tower column is fixed on the supporting base, the fused salt heat collection tower is fixed on the heat collection tower column, the heat collection tower column is communicated with the interior of the fused salt heat collection tower, and the fused salt heat collection tower is fixed on the supporting base. Fused salt is stored in the fused salt heat collection tower, a reflective light collection mirror surface with an adjustable angle is arranged on the periphery of the supporting base, the reflective light collection mirror surface adjusts the reflection angle in real time according to the position of the sun, and the reflective light collection mirror surface concentrates and reflects sunlight to the outer wall face of the fused salt heat collection tower to heat the fused salt. The temperature difference control assistor structure is installed in a traditional fused salt heat collection tower, heat is differentiated and conducted through the speed difference of heat transfer between different materials during heating, the temperature difference between fused salt close to the outer wall of the fused salt heat collection tower and fused salt located in the fused salt heat collection tower is effectively reduced, and overall rapid heat conduction is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to molten salt heat supply power generation device technical field especially a molten salt heat supply power generation device. BACKGROUND

[0002] The existing molten salt heat supply power generation technology collects the sunlight in a heat absorbing tower filled with molten salt through a large number of reflectors arranged in the desert and gobi beach, and the heat absorbing tower is generally heated to a high temperature of more than 1000 degrees Celsius, and then the heat energy is converted into mechanical energy to generate electricity through heating of a steam engine.

[0003] However, in order to achieve the specified power of a single machine, the molten salt tower is designed to be large, resulting in uneven heating of the molten salt inside and outside, and the heating and temperature rising speed needs to be improved.

[0004] The present case is proposed to improve and optimize the above problems or deficiencies. INVENTION CONTENTS

[0005] A molten salt heat supply power generation device, comprising a support base, a heat collecting tower column, and a molten salt heat collecting tower, wherein the heat collecting tower column is fixed on the support base, the molten salt heat collecting tower is fixed on the heat collecting tower column, the heat collecting tower column is in communication with the molten salt heat collecting tower, the molten salt heat collecting tower stores molten salt, an angle-adjustable reflective light collector is provided around the support base, the reflective light collector adjusts the reflection angle in real time according to the position of the sun, the reflective light collector concentrates and reflects the sunlight to the outer wall of the molten salt heat collecting tower to heat the molten salt, and the molten salt temperature reaches more than 1000 degrees Celsius to convert the heat into mechanical energy through a matched steam engine to generate electricity.

[0006] It also includes a temperature difference control auxiliary device, which is embedded in the molten salt heat collecting tower and in contact with the inner wall of the molten salt heat collecting tower, the temperature difference control auxiliary device has a polygonal structure with a plurality of arrays and is penetrated from top to bottom, the material of the temperature difference control auxiliary device is consistent with that of the molten salt heat collecting tower, and the direct contact between the temperature difference control auxiliary device and the molten salt heat collecting tower strengthens the channel for rapid heat conduction inward.

[0007] Preferably, the side wall of the temperature difference control auxiliary device is provided with a high-thermal-conductivity coating to further accelerate the heat transfer from the outside to the inside.

[0008] Preferably, the side wall of the temperature difference control auxiliary device is provided with a high-thermal-conductivity coating and the high-thermal-conductivity coating is thicker closer to the outer wall of the molten salt heat collecting tower.

[0009] Preferably, the horizontal cross section of the temperature difference control auxiliary is a honeycomb structure, the temperature difference control auxiliary separates the molten salt in the vertical direction, the thermal conductivity of the temperature difference control auxiliary is higher than that of the molten salt, and heat quickly enters the middle position of the molten salt heat collection tower through the temperature difference control auxiliary and is transferred to the molten salt in the middle, which is more efficient than the traditional structure through the molten salt from the outside to the inside step by step.

[0010] Preferably, the temperature difference control auxiliary is internally provided with non-uniformly arranged through holes, the through holes closer to the sidewall of the molten salt heat collection tower are larger in diameter, and the through holes closer to the central position of the molten salt heat collection tower are smaller in diameter and more dense in number.

[0011] Preferably, the maximum diameter of the through holes in the temperature difference control auxiliary is not more than the inner diameter of the heat collection tower column, and the minimum diameter of the through holes in the temperature difference control auxiliary is not less than half of the inner diameter of the heat collection tower column.

[0012] The advantages and positive effects of the utility model are:

[0013] 1. By installing a temperature difference control auxiliary structure in a traditional molten salt heat collection tower, heat is differentiated and conducted through the rate difference of heat transfer between different materials when heating and warming, thereby effectively reducing the temperature difference between the molten salt close to the outer wall of the molten salt heat collection tower and the molten salt located in the interior, and improving the overall rapid heat conduction. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described below in combination with the drawings and examples.

[0015] Figure 1 is a structural schematic diagram of the utility model;

[0016] Figure 2 is Figure 1 a three-dimensional structural schematic diagram;

[0017] Figure 3 is Figure 1 an enlarged structural schematic diagram of the full section of A-A in FIG.

[0018] Markings in the drawings: 10, molten salt heat collection tower; 11, heat collection tower column; 12, supporting base; 13, reflecting light collecting mirror surface; 14, temperature difference control auxiliary. DETAILED DESCRIPTION

[0019] The utility model will be further described below in combination with the drawings and examples.

[0020] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0021] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0022] like Figures 1-3 As shown, the molten salt heating and power generation device of this utility model includes a support base 12, a heat collection tower column 11, and a molten salt heat collection tower 10. The heat collection tower column 11 is fixed on the support base 12, and the molten salt heat collection tower 10 is fixed on the heat collection tower column 11. The heat collection tower column 11 is internally connected to the molten salt heat collection tower 10. Molten salt is stored inside the molten salt heat collection tower 10. An angle-adjustable reflective light-collecting mirror 13 is provided around the periphery of the support base 12. The reflective light-collecting mirror 13 adjusts the reflection angle in real time according to the position of the sun. The reflective light-collecting mirror 13 concentrates and reflects sunlight to the outer wall of the molten salt heat collection tower 10 to heat the molten salt. When the temperature of the molten salt reaches more than 1,000 degrees Celsius, the heat is converted into mechanical energy to generate electricity through a matching steam engine.

[0023] It also includes a temperature difference control auxiliary device 14, which is embedded in the molten salt heat collector tower 10 and in contact with the inner wall of the molten salt heat collector tower 10. The temperature difference control auxiliary device 14 has a plurality of polygonal structures arranged in an array and running vertically through it. The material of the temperature difference control auxiliary device 14 is the same as that of the molten salt heat collector tower 10. The direct contact between the temperature difference control auxiliary device 14 and the molten salt heat collector tower 10 enhances the channel for rapid inward conduction of heat.

[0024] Preferably, the sidewall of the temperature difference control auxiliary device 14 is provided with a high thermal conductivity coating to further accelerate the transfer of heat from the outside to the inside.

[0025] Preferably, the sidewall of the temperature difference control auxiliary device 14 is provided with a high thermal conductivity coating, and the high thermal conductivity coating is thicker closer to the outer wall of the molten salt heat collector tower 10.

[0026] Preferably, the horizontal cross section of the temperature difference control auxiliary 14 is a honeycomb structure, the temperature difference control auxiliary 14 separates the molten salt in the vertical direction, the thermal conductivity of the temperature difference control auxiliary 14 is higher than that of the molten salt, and heat quickly enters the middle position of the molten salt heat collection tower 10 through the temperature difference control auxiliary 14 and is transferred to the molten salt in the middle, which is more efficient than the traditional structure through the molten salt from the outside to the inside step by step.

[0027] Preferably, the temperature difference control auxiliary 14 is internally provided with non-uniformly arranged through holes, the closer to the sidewall of the molten salt heat collection tower 10, the larger the diameter of the through hole, and the closer to the center position of the molten salt heat collection tower 10, the smaller the diameter of the through hole and the more dense the number.

[0028] Preferably, the maximum diameter of the through hole in the temperature difference control auxiliary 14 is not more than the inner diameter of the heat collection tower column 11, and the minimum diameter of the through hole in the temperature difference control auxiliary 14 is not less than half of the inner diameter of the heat collection tower column 11.

[0029] It should be emphasized that the embodiments of the utility model are illustrative rather than limiting, and therefore the utility model is not limited to the embodiments described in the specific embodiments, and any other embodiments derived from the technical solution of the utility model by those skilled in the art also belong to the protection scope of the utility model.

Claims

1. A molten salt heat supply power generation device, comprising a support base (12), a heat collection tower column (11), and a molten salt heat collection tower (10), wherein the heat collection tower column (11) is fixed on the support base (12), the molten salt heat collection tower (10) is fixed on the heat collection tower column (11), the heat collection tower column (11) is in communication with the molten salt heat collection tower (10), the molten salt heat collection tower (10) stores molten salt, an angle-adjustable reflective light collecting mirror (13) is arranged on the periphery of the support base (12), the reflective light collecting mirror (13) adjusts the reflection angle in real time according to the position of the sun, and the reflective light collecting mirror (13) concentrates and reflects sunlight to the outer wall surface of the molten salt heat collection tower (10) to heat the molten salt, and when the temperature of the molten salt reaches more than 1,000 degrees Celsius, the heat is converted into mechanical energy by a steam engine to generate electricity. characterized in that The device further comprises a temperature difference control auxiliary device (14) which is embedded in the molten salt heat collection tower (10) and in contact with the inner wall of the molten salt heat collection tower (10), the temperature difference control auxiliary device (14) has a polygonal structure arranged in an array and penetrating up and down, the material of the temperature difference control auxiliary device (14) is consistent with that of the molten salt heat collection tower (10), and the direct contact between the temperature difference control auxiliary device (14) and the molten salt heat collection tower (10) strengthens the channel for rapid heat conduction inward.

2. A molten salt heated power plant according to claim 1, characterized in that: A high-thermal-conductivity coating is arranged on the side wall surface of the temperature difference control auxiliary device (14), further accelerating the transfer of heat from the outside to the inside.

3. A molten salt heated power plant according to claim 2, characterized in that: The high-thermal-conductivity coating arranged on the side wall surface of the temperature difference control auxiliary device (14) is thicker closer to the outer wall of the molten salt heat collection tower (10).

4. A molten salt heated power plant according to claim 3, wherein: The horizontal cross section of the temperature difference control auxiliary device (14) is a honeycomb structure penetrating through, the temperature difference control auxiliary device (14) isolates the molten salt in the vertical direction, the thermal conductivity of the temperature difference control auxiliary device (14) is higher than that of the molten salt, heat quickly enters the middle position of the molten salt heat collection tower (10) through the temperature difference control auxiliary device (14) and is transferred to the molten salt in the middle, and compared with the traditional structure, the heat is transferred from the outside to the inside step by step through the molten salt, which is more efficient.

5. A molten salt heated power plant according to claim 4, characterized in that: Non-uniform through holes are arranged in the temperature difference control auxiliary device (14), the diameter of the through holes closer to the side wall of the molten salt heat collection tower (10) is larger, and the diameter of the through holes closer to the central position of the molten salt heat collection tower (10) is smaller and more dense.

6. A molten salt heated power plant according to claim 5, characterized in that: The maximum diameter of the through holes in the temperature difference control auxiliary device (14) is not more than the inner diameter of the heat collection tower column (11), and the minimum diameter of the through holes in the temperature difference control auxiliary device (14) is not less than half of the inner diameter of the heat collection tower column (11).

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