Solar photo-thermal heat storage molten salt tank

Abstract

The utility model relates to a solar photo-thermal heat storage molten salt tank which comprises a tank body and a solar photo-thermal system arranged on the tank body, the solar photo-thermal system can heat molten salt, and the solar photo-thermal heat storage molten salt tank further comprises a push rod, a first swing rod, a second swing rod and a first stirring rod. The push rod is driven to be slidably connected into the tank body in the vertical direction; one end of the first swing rod is in swing connection with one end of the push rod, and the first swing rod can swing around the center position of one end of the push rod; the second swing rod is connected to the end, away from the push rod, of the first swing rod in a swing mode and can swing around the center position of one end of the first swing rod. The first stirring rod is horizontally and rotationally connected into the tank body, solar light heat energy can be evenly stored, fused salt can evenly absorb heat energy in solar energy by stirring the fused salt, the heating uniformity of the fused salt is further improved, and the situation that the heat absorption efficiency of the fused salt at the bottom is reduced is reduced.

Description

[Technical field]

[0001] The utility model relates to the technical field of molten salt tanks, in particular to a solar thermal heat storage molten salt tank. [Background technology]

[0002] Solar high-temperature thermal power generation technology is an important direction for the large-scale utilization of solar energy. The working fluids used in solar high-temperature thermal power generation include water (water vapor), molten salt, air, thermal oil, liquid metal and other heat-conducting media. Among them, due to the volatility and discontinuity of sunlight, a large-scale heat storage system must be available in the solar thermal power generation system to generate electricity continuously and stably. Molten salt has the characteristics of high operating temperature, wide temperature range, good flow characteristics, and large heat capacity. As a heat storage working fluid, it can be applied to the heat storage system to make up for the problem of unstable sunlight. It is currently the most widely used solar heat storage working fluid. For the storage of molten salt, a molten salt storage tank is generally used. A storage tank is opened on the top of the storage tank to store molten salt. The molten salt is heated by solar energy to achieve the storage of thermal energy.

[0003] Although the above scheme can store heat through molten salt particles, since the molten salt is piled in the storage tank and the volume of the molten salt storage tank is large, when the sun is directly shining, the solar heat will generally directly shine on the top of the molten salt, while it will take a certain amount of time for the molten salt at the bottom to be exposed. Therefore, there will be a temperature difference between the molten salt temperature at the top and the bottom of the molten salt, which will cause uneven heat storage of the molten salt. [Contents of the utility model]

[0004] The purpose of the utility model is to solve the problems in the prior art and to provide a solar thermal heat storage molten salt tank that can evenly store solar thermal energy.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a solar thermal heat storage molten salt tank, comprising: a tank body,

[0006] It also includes: a push rod, a swing rod 1, a swing rod 2 and a stirring rod 1;

[0007] The push rod is driven to slide in the vertical direction and is connected in the tank body;

[0008] One end of the swing rod is swingably connected to one end of the push rod, and the swing rod can swing around the center position of one end of the push rod;

[0009] The second swing rod is swingably connected to the end of the first swing rod away from the push rod, and the second swing rod can swing around the center position of one end of the first swing rod;

[0010] The stirring rod 1 is horizontally rotatably connected in the tank body, and one end of the stirring rod 1 is fixedly connected to an end of the swing rod 2 away from the swing rod 1.

[0011] Preferably, a moving rod 1 is slidably connected to the tank body in a vertical direction, and the moving rod 1 is connected to the push rod through a transmission mechanism. An arc-shaped moving groove is opened in the tank body, and a rotating rod is swingably connected to the tank body, one end of the rotating rod is located in the arc-shaped moving groove, a spring 1 is fixedly connected in the arc-shaped moving groove, one end of the spring 1 is fixedly connected to the rotating rod, a stirring rod 2 is rotatably connected to the tank body, and the stirring rod 2 is fixedly connected to the center position of the rotating rod.

[0012] Preferably, the transmission mechanism comprises: a rack 1 fixedly connected to the push rod, a rack 2 fixedly connected to the moving rod 1, and a spur gear 1 rotatably connected in the tank body and meshing with the rack 1, a rotating rod being fixedly connected to the spur gear 1, a spur gear 2 being rotatably connected in the tank body, the spur gear 2 being fixedly connected to the rotating rod, and the spur gear 2 being meshed with the rack 2.

[0013] Preferably, a positioning wheel is rotatably connected to the movable rod, and a positioning groove for the positioning wheel to move is provided on the rotating rod.

[0014] Preferably, thermal insulation cotton is fixedly connected to the inner wall of the tank body.

[0015] Preferably, a thermal insulation plate is fixedly connected to the bottom surface of the tank body, and a thermal insulation frame with a built-in chamber is fixedly connected to the tank body.

[0016] Preferably, a water outlet pipe and a water inlet pipe are fixedly connected through the insulation frame, and a solenoid valve is fixedly connected to the water outlet pipe and the water inlet pipe.

[0017] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model provides a stirring rod 1 and a stirring rod 2 which are rotatably connected to the tank body. The molten salt in the tank body can be stirred by the synchronous rotation of the stirring rod 1 and the stirring rod 2. The molten salt at the bottom of the tank body can be stirred to the top of the tank body by the stirring rod 1 and the stirring rod 2 which are arranged up and down, thereby increasing the uniformity of heat storage of the molten salt, further increasing the uniformity of heating of the molten salt, and reducing the reduction in heat absorption efficiency of the molten salt at the bottom.

[0018] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2It is a schematic diagram of the position of the rotating rod of the utility model;

[0021] Figure 3 It is a schematic diagram of the positions of the swing rod 2 and the swing rod 1 of the utility model.

[0022] In the figure: 1. tank body; 3. push rod; 4. swing rod 1; 5. swing rod 2; 6. stirring rod 1; 7. moving rod 1; 8. transmission mechanism; 9. arc moving groove; 10. rotating rod; 11. spring 1; 12. stirring rod 2; 13. rack 1; 14. rack 2; 15. spur gear 1; 16. rotating rod; 17. spur gear 2; 18. positioning wheel; 19. positioning groove; 20. thermal insulation cotton; 21. thermal insulation board; 22. thermal insulation frame; 23. water outlet pipe; 24. water inlet pipe; 25. solenoid valve; 26. cylinder 1. [Specific implementation method]

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] A solar thermal energy storage molten salt tank, comprising: a tank body 1,

[0028] It also includes: a push rod 3, a swing rod 1 4, a swing rod 2 5 and a stirring rod 1 6;

[0029] The push rod 3 in the utility model is driven by a cylinder 26 to slide in the vertical direction and is connected to the tank body 1. The cylinder 26 is fixedly connected to the tank body 1, and the output shaft is fixedly connected to the push rod 3, so that the movement of the push rod 3 can be realized. When the push rod 3 moves, the push rod 3 will drive the swing rod 4 connected to the push rod 3 to swing, and the swing rod 4 will drive the swing rod 2 5 connected to the swing rod 4 and connected to the stirring rod 6 in the shell at one end to swing, so that the swing rod 2 5 drives the stirring rod 6 to stir the molten salt during the swinging process, thereby further improving the stirring effect of the molten salt.

[0030] In the utility model, since the tank body 1 is slidably connected with a moving rod 7 in a vertical direction, the moving rod 7 is connected to the push rod 3 through a transmission mechanism 8, a circular arc moving groove 9 is opened in the tank body 1, and a rotating rod 10 is swingably connected in the tank body 1, one end of the rotating rod 10 is located in the circular arc moving groove 9, a spring 11 is fixedly connected in the circular arc moving groove 9, one end of the spring 11 is fixedly connected to the rotating rod 10, and a stirring rod 2 12 is rotatably connected in the tank body 1, and the stirring rod 2 12 is connected to the rotating rod 10. The center position of the rotating rod 10 is fixedly connected, so the pushing rod 3 will drive the moving rod 7 to move through the transmission mechanism 8 during the movement. The movement of the moving rod 7 will push the rotating rod 10 to rotate and make the rotating rod 10 rotate around the arc-shaped moving groove 9. When the rotating rod 10 rotates, the rotating rod 10 will drive the stirring rod 2 12 to rotate, thereby realizing the stirring of the molten salt by the stirring rod 2 12. Conversely, when the moving rod 7 rises, the rotating rod 10 is pulled to rotate by the spring 11, thereby realizing the reverse stirring of the molten salt by the stirring rod 2 12.

[0031] The transmission mechanism 8 in the utility model includes: a rack 13 fixedly connected to the push rod 3, a rack 2 14 fixedly connected to the moving rod 7, and a spur gear 15 rotatably connected in the tank body 1 and meshing with the rack 13, the spur gear 15 is fixedly connected with a rotating rod 16, a spur gear 2 17 is rotatably connected in the tank body 1, the spur gear 2 17 is fixedly connected to the rotating rod 16, the spur gear 2 17 is meshed with the rack 2 14, the rotating rod 16 is driven to rotate by the spur gear 15, and the rotating rod 16 drives the spur gear 2 17 to rotate when rotating, and the spur gear 2 17 drives the rack 2 14 to move, so that the rack 2 14 drives the moving rod 7 to move.

[0032] The utility model rotatably connects the positioning wheel 18 to the moving rod 7 , and utilizes the positioning wheel 18 to be located in the positioning groove 19 provided on the rotating rod 10 , thereby reducing the friction between the moving rod 7 and the rotating rod 10 .

[0033] In the utility model, a heat-insulating cotton 20 is fixedly connected to the inner wall of the tank body 1 to keep the heat in the tank body 1 warm.

[0034] In the utility model, a thermal insulation board 21 is fixedly connected to the bottom surface of the tank body 1, and a thermal insulation frame 22 with a built-in chamber is fixedly connected to the tank body 1. The design of the thermal insulation board 21 and the thermal insulation frame 22 can insulate the tank body 1.

[0035] In the utility model, a water outlet pipe 23 and a water inlet pipe 24 are fixedly connected to the insulation frame 22, and a solenoid valve 25 is fixedly connected to the water outlet pipe 23 and the water inlet pipe 24. The water inlet pipe 24 is used to inject water into the insulation frame 22, and the water outlet pipe 23 is mainly used to discharge the water in the insulation frame 22.

[0036] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A solar thermal heat storage molten salt tank, comprising: The tank body (1) is characterized in that: It also includes: a push rod (3), a swing rod 1 (4), a swing rod 2 (5) and a stirring rod 1 (6); The push rod (3) is driven to slide vertically and is connected inside the tank body (1); One end of the swing rod (4) is swingably connected to one end of the push rod (3), and the swing rod (4) can swing around the center position of one end of the push rod (3); The second swing rod (5) is swingably connected to an end of the first swing rod (4) away from the push rod (3), and the second swing rod (5) can swing around the center position of one end of the first swing rod (4); The stirring rod 1 (6) is horizontally rotatably connected in the tank body (1), and one end of the stirring rod 1 (6) is fixedly connected to an end of the swing rod 2 (5) away from the swing rod 1 (4).

2. A solar thermal heat storage molten salt tank according to claim 1, characterized in that: A moving rod (7) is slidably connected to the tank body (1) in a vertical direction, and the moving rod (7) is connected to the push rod (3) through a transmission mechanism (8). A circular arc moving groove (9) is provided in the tank body (1), and a rotating rod (10) is swingably connected in the tank body (1). One end of the rotating rod (10) is located in the circular arc moving groove (9), and a spring (11) is fixedly connected in the circular arc moving groove (9). One end of the spring (11) is fixedly connected to the rotating rod (10), and a stirring rod (12) is rotatably connected in the tank body (1), and the stirring rod (12) is fixedly connected to the center position of the rotating rod (10).

3. A solar thermal heat storage molten salt tank according to claim 2, characterized in that: The transmission mechanism (8) comprises: a rack gear 1 (13) fixedly connected to the push rod (3), a rack gear 2 (14) fixedly connected to the moving rod 1 (7), and a spur gear 1 (15) rotatably connected in the tank body (1) and meshing with the rack gear 1 (13); a rotating rod (16) is fixedly connected to the spur gear 1 (15); a spur gear 2 (17) is rotatably connected in the tank body (1); the spur gear 2 (17) is fixedly connected to the rotating rod (16); and the spur gear 2 (17) is meshing with the rack gear 2 (14).

4. A solar thermal heat storage molten salt tank according to claim 2, characterized in that: The moving rod (7) is rotatably connected to a positioning wheel (18), and the rotating rod (10) is provided with a positioning groove (19) for the positioning wheel (18) to move.

5. A solar thermal heat storage molten salt tank according to claim 1, characterized in that: A heat-insulating cotton (20) is fixedly connected to the inner wall of the tank body (1).

6. A solar thermal heat storage molten salt tank according to claim 1, characterized in that: A temperature insulation plate (21) is fixedly connected to the bottom surface of the tank body (1), and a temperature insulation frame (22) with a built-in chamber is fixedly connected to the tank body (1).

7. A solar thermal heat storage molten salt tank according to claim 6, characterized in that: A water outlet pipe (23) and a water inlet pipe (24) are fixedly connected through the thermal insulation frame (22), and a solenoid valve (25) is fixedly connected to the water outlet pipe (23) and the water inlet pipe (24).

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