Heat storage steam generating device

Abstract

The utility model relates to the technical field of steam generation, in particular to a heat storage steam generation device, which comprises an energy storage tank, a steam generator, a steam generator, a steam generator, a steam generator, a steam generator, a steam generator and an energy storage tank, the energy storage tank is internally provided with a partition plate, and the partition plate divides the interior of the energy storage tank into a heating chamber and an energy storage chamber; the electric heater is arranged in the heating chamber; the heat exchange assembly is fixedly connected with the inner wall of the energy storage tank; the heat exchange assembly comprises a heat exchange pipe arranged in the energy storage chamber. The moving structure is fixedly connected with the heat exchange tube and is used for moving the heat exchange tube; the two heat insulation structures are symmetrically arranged on the two sides of the energy storage tank and fixedly connected with the energy storage tank. By operating the moving structure, the moving structure can enable the heat exchange pipe to vertically move, so that the heat exchange pipe is separated from the molten salt, the heat exchange pipe and the molten salt are separated by utilizing the heat insulation structure, liquid in the heat exchange pipe is prevented from being heated in the molten salt melting process, and thus heat loss is avoided.

Description

Technical Field

[0001] This utility model relates to the field of steam generation technology, specifically a heat storage steam generation device. Background Technology

[0002] Molten salt is a molten substance formed by melting salts, such as halides of alkali metals and alkaline earth metals, nitrates, and sulfates. Molten salt is solid at standard temperature and atmospheric pressure. When the temperature rises and reaches the melting point, molten salt will turn into liquid and store a large amount of heat. When steam generation is needed, the liquid molten salt is brought into contact with water pipes to transfer heat, thereby vaporizing the water and generating steam. This requires the use of a heat storage steam generator.

[0003] However, when existing thermal storage steam generators are in use, the molten salt needs to be heated during the process of melting into a liquid state. At this time, the water pipe is also located in the molten salt, and the water pipe is also heated during the process of heating the molten salt. At this time, steam is not needed, and it is impossible to separate the water pipe from the molten salt during the heating process, thus generating a large amount of steam and causing serious heat loss. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing thermal storage steam generators cannot separate the water pipe from the molten salt during the heating process, resulting in a large amount of steam being generated and causing serious heat loss.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A thermal steam generation device, comprising:

[0007] An energy storage tank, wherein the interior of the energy storage tank is provided with a partition, and the partition divides the interior of the energy storage tank into a heating chamber and an energy storage chamber;

[0008] An electric heater is installed in the heating chamber to heat the energy storage chamber;

[0009] A heat exchange assembly is fixedly connected to the inner wall of the energy storage tank; the heat exchange assembly includes: a heat exchange tube disposed in the energy storage chamber for storing liquid;

[0010] A movable structure, fixedly connected to the heat exchange tube, is used to move the heat exchange tube;

[0011] Two sets of heat insulation structures are symmetrically arranged on both sides of the energy storage tank and are fixedly connected to the energy storage tank.

[0012] Preferably, the moving structure includes:

[0013] A horizontal plate, the surface of which is provided with a first sliding groove;

[0014] Two sets of vertical plates, each set of vertical plates having its two ends fixedly connected to the horizontal plate and the heat exchange tube, respectively;

[0015] The rotating component consists of a disc and a first cylindrical pin, with the surface edge of the disc fixedly connected to the first cylindrical pin; the first cylindrical pin is disposed in the first sliding groove, allowing the rotating component to be slidably connected to the cross plate via the first cylindrical pin;

[0016] A first motor, the output end of which is fixedly connected to the axis of the disk;

[0017] An insulation box is fitted over the outside of the first motor and is fixedly connected to the first motor.

[0018] Preferably, the heat exchange assembly further includes:

[0019] A connecting pipe is disposed on the outside of the heat exchange tube and is connected to the heat exchange tube;

[0020] Two sets of sealing rings are provided. The inner wall of each set of sealing rings is fixedly connected to one end of the heat exchange tube, and the outer side of the sealing ring is tightly fitted to the inner wall of the connecting tube, so that the sealing ring can move vertically inside the connecting tube.

[0021] Preferably, the energy storage tank has two sets of through slots on both sides.

[0022] Preferably, each group of the thermal insulation structures includes:

[0023] A protective box is fixedly connected to the outside of the energy storage tank;

[0024] A first heat insulation plate is disposed in the through groove and is slidably connected to the energy storage tank through the through groove;

[0025] The worm gear is located inside the protective box;

[0026] The second motor, the output end of which is fixedly connected to one end of the worm gear;

[0027] A worm gear meshes with the worm, one end of which has its shaft passing through the protective box and is rotatably connected to it.

[0028] A rotating plate, one end of which is fixedly connected to the other end of the worm gear shaft; a second sliding groove is provided at the other end of the rotating plate;

[0029] The connector consists of a first rod, a second rod, and a second cylindrical pin. One end of the first rod is fixedly connected to one end of the second rod, and the other end of the first rod is fixedly connected to the end of the first heat insulation plate away from the energy storage tank. The other end of the second rod is fixedly connected to the second cylindrical pin. The second cylindrical pin is disposed in the second sliding groove, so that the connector is slidably connected to the rotating plate through the second cylindrical pin.

[0030] Preferably, the heat insulation structure further includes: two sets of second heat insulation plates; both sets of second heat insulation plates are disposed inside the energy storage tank and fixedly connected to the energy storage tank; the upper end surface of the second heat insulation plate is flush with the upper end surface of the first heat insulation plate, so that after the two sets of second heat insulation plates and the two sets of first heat insulation plates are connected, heat can be prevented from being transferred to the upper part.

[0031] Preferably, it further includes: a cleaning structure; the cleaning structure is disposed above the second heat insulation plate and is used to clean the surface of the heat exchange tube.

[0032] Preferably, the cleaning structure includes:

[0033] A fixed heat insulation frame is fixedly connected to a set of the second heat insulation boards;

[0034] A movable heat insulation frame is disposed inside the fixed heat insulation frame, and the outer wall of the movable heat insulation frame is in contact with the inner wall of the fixed heat insulation frame, so that the movable heat insulation frame can slide within the fixed heat insulation frame.

[0035] The transmission assembly consists of a belt and two sets of pulleys, with the edges of the two sets of pulleys in close contact with the belt; one end of the shaft of the two sets of pulleys passes through the movable heat insulation frame and is rotatably connected to the movable heat insulation frame;

[0036] Two sets of rotating rollers, the axis of each set of rotating rollers is fixedly connected to one end of the pulley that passes through the movable heat insulation frame;

[0037] The fourth motor, the output end of which is fixedly connected to the other end of the shaft of a set of pulleys.

[0038] Preferably, the cleaning structure further includes a driving structure; the driving structure is disposed above the fixed heat insulation frame and is used to push the movable heat insulation frame to move.

[0039] Preferably, the driving structure includes:

[0040] A movable component, one end of which is fixedly connected to the movable heat insulation frame;

[0041] A movable block is disposed at the other end of the movable component and is fixedly connected to the movable component;

[0042] A threaded rod, one end of which passes through the movable block and is threadedly connected to the movable block; the other end of which passes through the energy storage tank and is rotatably connected to the energy storage tank.

[0043] The third motor, the output end of which is fixedly connected to one end of the threaded rod that passes through the energy storage tank.

[0044] The beneficial effects proposed by this utility model are as follows: by operating the moving structure, the moving structure can make the heat exchange tube move vertically, thereby making the heat exchange tube separate from the molten salt, and using the heat insulation structure to separate the heat exchange tube and the molten salt, so as to avoid heating the liquid inside the heat exchange tube during the melting process of the molten salt, thereby avoiding heat loss. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of this utility model;

[0046] Figure 2 for Figure 1 Cross-sectional perspective of the central connecting structure;

[0047] Figure 3 for Figure 1 Rear-view 3D schematic diagram of the central connection structure;

[0048] Figure 4 for Figure 3 Cross-sectional perspective of the central connecting structure;

[0049] Figure 5 for Figure 2 Enlarged 3D schematic diagram of the central connecting structure;

[0050] Figure 6 for Figure 5 Schematic diagram of the cross-sectional plan of the middle connecting structure;

[0051] Figure 7 for Figure 4 Enlarged 3D schematic diagram of the central connecting structure;

[0052] Figure 8 for Figure 1 A three-dimensional schematic diagram of the internal connection structure;

[0053] Figure 9 for Figure 8 Enlarged 3D schematic diagram of the central connecting structure;

[0054] Figure 10 for Figure 9 Exploded view of the central connecting structure;

[0055] Figure 11 for Figure 3A three-dimensional schematic diagram of the internal connection structure.

[0056] In the diagram: 1. Energy storage tank, 2. Baffle plate, 3. Electric heater, 4. Heat exchange tube, 5. Connecting pipe, 6. Sealing ring, 7. Vertical plate, 8. Horizontal plate, 9. Rotating component, 10. First motor, 11. Insulation box, 12. First insulation plate, 13. Connecting component, 14. Rotating plate, 15. Worm gear, 16. Worm, 17. Second motor, 18. Threaded rod, 19. Third motor, 20. Moving block, 21. Moving component, 22. Moving insulation frame, 23. Fixed insulation frame, 24. Transmission assembly, 25. Rotating roller, 26. Fourth motor, 27. Cleaning plate, 28. Second insulation plate, 29. Protective box. Detailed Implementation

[0057] The present invention will be further described below with reference to the accompanying drawings:

[0058] This embodiment:

[0059] Please see Figure 1-11 In this embodiment: a thermal steam generator includes: an energy storage tank 1, a partition 2, an electric heater 3, a heat exchange component, a moving structure, and two sets of thermal insulation structures.

[0060] In this embodiment, the energy storage tank 1 is provided with a partition 2, which divides the interior of the energy storage tank 1 into a heating chamber and an energy storage chamber.

[0061] In this embodiment, molten salt is installed in the energy storage chamber, and the height of the molten salt is lower than the position of the through slots opened on both sides of the energy storage tank 1; the partition 2 is made of a metal with a high heat transfer coefficient, which can be copper or other metals.

[0062] The electric heater 3 is installed in the heating chamber and is used to heat the energy storage chamber.

[0063] In this embodiment, the electric heater 3 is a common structure on the market, and its internal structure is existing technology and does not need to be explicitly described. The model of the electric heater 3 is selected according to actual needs, as long as it meets the working conditions. The electric heater 3 can heat the partition 2, and the partition 2 transfers heat to the molten salt.

[0064] The heat exchange assembly is fixedly connected to the inner wall of the energy storage tank 1; the heat exchange assembly includes: heat exchange tube 4, which is installed in the energy storage chamber and is used to store liquid.

[0065] In this embodiment, the liquid in the heat exchange tube 4 is heated by contacting the heat exchange tube 4 with the molten salt, causing the liquid to vaporize. The liquid is water. The heat exchange tube 4 is formed by connecting multiple sets of U-shaped tubes end to end.

[0066] The movable structure is fixedly connected to the heat exchange tube 4 and is used to move the heat exchange tube 4; two sets of heat insulation structures are symmetrically arranged on both sides of the energy storage tank 1 and are fixedly connected to the energy storage tank 1.

[0067] In this embodiment, by operating the moving structure, the heat exchange tube 4 can be moved vertically, thereby causing the heat exchange tube 4 to detach from the molten salt. The heat insulation structure is used to separate the heat exchange tube 4 from the molten salt, so as to avoid heating the liquid inside the heat exchange tube 4 during the melting process of the molten salt, thereby avoiding heat loss.

[0068] like Figure 4 and Figure 7 As shown, the moving structure includes: a horizontal plate 8, two sets of vertical plates 7, a rotating component 9, a first motor 10, and a heat insulation box 11.

[0069] The horizontal plate 8 has a first groove on its surface; the two ends of each set of vertical plates 7 are fixedly connected to the horizontal plate 8 and the heat exchange tube 4, respectively.

[0070] In this embodiment, when the horizontal plate 8 moves vertically, it will drive the heat exchange tube 4 to move through the vertical plate 7.

[0071] The rotating component 9 consists of a disc and a first cylindrical pin. The surface edge of the disc is fixedly connected to the first cylindrical pin. The first cylindrical pin is set in the first sliding groove, so that the rotating component 9 is slidably connected to the horizontal plate 8 through the first cylindrical pin.

[0072] In this embodiment, when the rotating member 9 rotates, it will cause the first cylindrical pin to make a circular motion around the axis of the disk. The first cylindrical pin will make the horizontal plate 8 move vertically by sliding with the first groove.

[0073] The output end of the first motor 10 is fixedly connected to the axis of the disk.

[0074] In this embodiment, the first motor 10 is a high-temperature resistant motor. The model of the first motor 10 is selected according to actual needs, as long as it meets the working conditions.

[0075] The heat insulation box 11 is fitted on the outside of the first motor 10 and is fixedly connected to the first motor 10.

[0076] In this embodiment, the heat insulation box 11 is made of heat insulation material, which can be tin foil or other heat insulation materials, as long as it can meet the heat insulation function; an opening is provided at one end of the heat insulation box 11 near the energy storage tank 1, which can effectively dissipate heat from the first motor 10 without affecting the normal operation of the first motor 10.

[0077] Before heating the molten salt, the first motor 10 is started. The output of the first motor 10 drives the rotating component 9 to rotate. The rotating component 9 causes the first cylindrical pin to move in a circular motion around the axis of the disk. The first cylindrical pin slides with the first sliding groove, causing the horizontal plate 8 to move vertically upward. The horizontal plate 8 drives the heat exchange tube 4 to move through the vertical plate 7, so that the heat exchange tube 4 is separated from the molten salt. This prevents the heat from the molten salt from exchanging heat with the liquid in the heat exchange tube 4 during the melting process, thus preventing the generation of steam and reducing heat loss.

[0078] like Figure 4 and Figure 7 As shown, the heat exchange assembly also includes: a connecting pipe 5 and two sets of sealing rings 6.

[0079] Specifically, the connecting pipe 5 is located on the outside of the heat exchange tube 4 and is connected to the heat exchange tube 4;

[0080] The inner wall of each sealing ring 6 is fixedly connected to one end of the heat exchange tube 4, and the outer side of the sealing ring 6 is tightly fitted to the inner wall of the connecting tube 5, so that the sealing ring 6 can move vertically inside the connecting tube 5.

[0081] In this embodiment, the sealing ring 6 is made of high-temperature resistant rubber material.

[0082] When the heat exchange tube 4 moves vertically upward, it will drive the sealing ring 6 to move. The sealing ring 6 moves vertically along the inner wall of the connecting pipe 5, so that the heat exchange tube 4 can move vertically without causing air leakage between the heat exchange tube 4 and the connecting pipe 5.

[0083] like Figure 2 and Figure 4 As shown, two sets of through slots are provided on both sides of the energy storage tank 1.

[0084] like Figure 4 and Figure 7 As shown, each heat insulation structure includes: a protective box 29, a first heat insulation plate 12, a worm gear 16, a second motor 17, a worm wheel 15, a rotating plate 14, and a connecting piece 13.

[0085] The protective box 29 is fixedly connected to the outside of the energy storage tank 1; the first heat insulation plate 12 is set in the through groove and is slidably connected to the energy storage tank 1 through the through groove.

[0086] The first heat insulation plate 12 can move horizontally along the through groove; after the two sets of first heat insulation plates 12 are connected, they can work together with the second heat insulation plate 28 to separate the energy storage chamber and prevent heat from contacting the heat exchange tube 4 when heating molten salt; the first heat insulation plate 12 and the second heat insulation plate 28 are made of the same material, which can be tin foil material or other heat insulation materials, as long as they can meet the heat insulation function.

[0087] The worm gear 16 is located inside the protective box 29; the output end of the second motor 17 is fixedly connected to one end of the worm gear 16; the worm wheel 15 is meshed with the worm gear 16, and one end of the worm gear 16 passes through the protective box 29 and is rotatably connected to the protective box 29.

[0088] In this embodiment, the second motor 17 is a high-temperature resistant motor. The model of the second motor 17 is selected according to actual needs, as long as it meets the working conditions. The output end of the second motor 17 can drive the worm gear 16 to rotate. The worm gear 16 simultaneously drives the worm wheel 15 to rotate.

[0089] One end of the rotating plate 14 is fixedly connected to the other end of the worm gear 15; the other end of the rotating plate 14 is provided with a second sliding groove; the connecting member 13 is composed of a first rod, a second rod, and a second cylindrical pin. One end of the first rod is fixedly connected to one end of the second rod, and the other end of the first rod is fixedly connected to the end of the first heat insulation plate 12 away from the energy storage tank 1; the other end of the second rod is fixedly connected to the second cylindrical pin; the second cylindrical pin is set in the second sliding groove, so that the connecting member 13 is slidably connected to the rotating plate 14 through the second cylindrical pin.

[0090] In this embodiment, when the worm gear 15 rotates, it also drives the rotating plate 14 to rotate; the rotating plate 14 will slide between the second sliding groove and the second cylindrical pin, causing the connecting member 13 to move horizontally; the connecting member 13 will also drive the first heat insulation plate 12 to move.

[0091] When heat insulation is required, the second motor 17 is started. The output end of the second motor 17 drives the worm gear 16 to rotate; the worm gear 16 drives the worm wheel 15 to rotate; the worm wheel 15 simultaneously drives the rotating plate 14 to rotate; the rotating plate 14 will slide between the second sliding groove and the second cylindrical pin, causing the connecting piece 13 to move towards the energy storage tank 1, and the connecting piece 13 pushes the first heat insulation plate 12 to move; so that the two sets of first heat insulation plates 12 move and dock, and cooperate with the second heat insulation plate 28 to separate the energy storage chamber and prevent the heat from contacting the heat exchange tube 4 when heating the molten salt.

[0092] like Figure 2 and Figure 8 As shown, the heat insulation structure also includes: two sets of second heat insulation plates 28; both sets of second heat insulation plates 28 are disposed inside the energy storage tank 1 and are fixedly connected to the energy storage tank 1; the upper end surface of the second heat insulation plate 28 is flush with the upper end surface of the first heat insulation plate 12, so that after the two sets of second heat insulation plates 28 and the two sets of first heat insulation plates 12 are connected, heat can be prevented from being transferred to the upper part.

[0093] During the heat exchange process between heat exchange tube 4 and molten salt, heat is absorbed from the molten salt, causing the molten salt to solidify. At this time, the solidified molten salt is easy to stick to heat exchange tube 4.

[0094] To address the aforementioned issues, this embodiment proposes an implementation method in which the thermal storage steam generator further includes a cleaning structure. The cleaning structure is positioned above the second heat insulation plate 28 and is used to clean the surface of the heat exchange tube 4.

[0095] like Figure 9 and Figure 10 As shown, the cleaning structure includes: a fixed heat insulation frame 23, a movable heat insulation frame 22, a transmission assembly 24, two sets of rotating rollers 25, and a fourth motor 26.

[0096] Specifically, the fixed heat insulation frame 23 is fixedly connected to a set of second heat insulation plates 28; the movable heat insulation frame 22 is disposed inside the fixed heat insulation frame 23, and the outer wall of the movable heat insulation frame 22 is in contact with the inner wall of the fixed heat insulation frame 23, so that the movable heat insulation frame 22 can slide in the fixed heat insulation frame 23.

[0097] In this embodiment, by pushing the movable heat insulation frame 22, the movable heat insulation frame 22 can slide along the inner wall of the fixed heat insulation frame 23; the movable heat insulation frame 22 and the fixed heat insulation frame 23 are made of the same material, which can be tin foil material or other heat insulation materials, as long as they can meet the heat insulation function; both the movable heat insulation frame 22 and the fixed heat insulation frame 23 have openings at the end near the energy storage tank 1, which can dissipate heat from the fourth motor 26 and will not be affected by high temperature.

[0098] The transmission assembly 24 consists of a belt and two sets of pulleys, with the edges of the two sets of pulleys tightly fitted to the belt; one end of the shaft of the two sets of pulleys passes through the movable heat insulation frame 22 and is rotatably connected to the movable heat insulation frame 22; the shaft of each set of rotating rollers 25 is fixedly connected to the end of the pulley that passes through the movable heat insulation frame 22.

[0099] In this embodiment, the belt drive enables the two sets of pulleys to rotate in the same direction and drive the two sets of rotating rollers 25 to rotate synchronously; while the moving heat insulation frame 22 moves, it can simultaneously drive the transmission component 24 to move.

[0100] The output end of the fourth motor 26 is fixedly connected to the other end of the shaft of a set of pulleys.

[0101] In this embodiment, the fourth motor 26 is a high-temperature resistant motor, and its model is selected according to actual needs, as long as it meets the working conditions.

[0102] When cleaning is required, first move the heat exchange tube 4 upwards. When the bend at the upper end of the heat exchange tube 4 is above the rotating roller 25, push the moving heat insulation frame 22 towards the heat exchange tube 4. The moving heat insulation frame 22 will slide along the inner wall of the fixed heat insulation frame 23. After inserting the rotating roller 25 into the bend at the upper end of the heat exchange tube 4, start the fourth motor 26. The output end of the fourth motor 26 drives the rotating roller 25 to rotate through the transmission assembly 24. The rotating roller 25 can clean the bend at the upper end of the heat exchange tube 4. Since the inner diameter of the rotating roller 25 is larger than the size of the bend, and there are soft bristles on the outer side of the rotating roller 25, the cleaning range of the rotating roller 25 is increased, and the molten salt on the heat exchange tube 4 can be cleaned.

[0103] Two sets of cleaning plates 27 are provided above the middle of the two sets of second heat insulation plates 28. The cleaning plates 27 will wrap around part of the heat exchange tube 4. As the heat exchange tube 4 moves vertically, the molten salt on the surface of the heat exchange tube 4 can be cleaned.

[0104] The cleaning structure also includes a drive structure; the drive structure is located above the fixed heat insulation frame 23 and is used to push the movable heat insulation frame 22 to move.

[0105] like Figure 9 and Figure 10 As shown, the drive structure includes: a moving part 21, a moving block 20, a threaded rod 18, and a third motor 19.

[0106] One end of the movable component 21 is fixedly connected to the movable heat insulation frame 22.

[0107] In this embodiment, the movable component 21 can move the movable heat insulation frame 22.

[0108] The movable block 20 is located at the other end of the movable component 21 and is fixedly connected to the movable component 21; one end of the threaded rod 18 passes through the movable block 20 and is threadedly connected to the movable block 20; the other end of the threaded rod 18 passes through the energy storage tank 1 and is rotatably connected to the energy storage tank 1; the output end of the third motor 19 is fixedly connected to the end of the threaded rod 18 that passes through the energy storage tank 1.

[0109] In this embodiment, the third motor 19 is located outside the energy storage tank 1 and will not be affected by high temperature; the model of the third motor 19 is selected according to actual needs, as long as it meets the working conditions.

[0110] When driving, the third motor 19 is started, and the output end of the third motor 19 drives the threaded rod 18 to rotate; the threaded rod 18 causes the moving block 20 to move along the outer wall of the threaded rod 18, and the moving block 20 drives the moving heat insulation frame 22 to move through the moving part 21.

[0111] Working principle:

[0112] When the thermal steam generator is in use and storing energy, the first motor 10 is started. The output of the first motor 10 drives the rotating component 9 to rotate. The rotating component 9 causes the first cylindrical pin to move in a circular motion around the axis of the disc. The first cylindrical pin slides with the first sliding groove, causing the horizontal plate 8 to move vertically upward. The horizontal plate 8 drives the heat exchange tube 4 to move through the vertical plate 7, so that the heat exchange tube 4 is separated from the molten salt. This prevents the heat from the molten salt from exchanging heat with the liquid in the heat exchange tube 4 during the melting process, thus preventing the generation of steam and reducing heat loss.

[0113] Then, the second motor 17 is started, and the output end of the second motor 17 drives the worm gear 16 to rotate; the worm gear 16 drives the worm wheel 15 to rotate; the worm wheel 15 simultaneously drives the rotating plate 14 to rotate; the rotating plate 14 will slide between the second sliding groove and the second cylindrical pin, so that the connecting piece 13 moves towards the energy storage tank 1, and the connecting piece 13 pushes the first heat insulation plate 12 to move; so that the two sets of first heat insulation plates 12 move and dock, and cooperate with the second heat insulation plate 28 to separate the energy storage chamber and prevent the heat from contacting the heat exchange tube 4 when heating the molten salt.

[0114] When cleaning is required, first move the heat exchange tube 4 upwards. When it moves above the rotating roller 25 at the bend at the upper end of the heat exchange tube 4, start the third motor 19. The output end of the third motor 19 drives the threaded rod 18 to rotate. The threaded rod 18 will cause the moving block 20 to move along the outer wall of the threaded rod 18. The moving block 20 drives the moving insulation frame 22 to move towards the heat exchange tube 4 through the moving part 21. The moving insulation frame 22 will slide along the inner wall of the fixed insulation frame 23. After inserting the rotating roller 25 into the bend at the upper end of the heat exchange tube 4, start the fourth motor 26. The output end of the fourth motor 26 drives the rotating roller 25 to rotate through the transmission assembly 24. The rotating roller 25 can clean the bend at the upper end of the heat exchange tube 4. Since the inner diameter of the rotating roller 25 is larger than the size of the bend, and there are soft hairs on the outer side of the rotating roller 25, the cleaning range of the rotating roller 25 is increased, and the molten salt on the heat exchange tube 4 can be cleaned.

[0115] Since two sets of cleaning plates 27 are installed at the middle position above the two sets of second heat insulation plates 28, and the cleaning plates 27 will wrap around part of the heat exchange tube 4, the molten salt on the surface of the heat exchange tube 4 can be cleaned as the heat exchange tube 4 moves vertically, thus completing the use of this device.

[0116] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A thermal storage steam generator, characterized in that: include: An energy storage tank (1) is provided with a partition (2) inside the energy storage tank (1), and the partition (2) divides the interior of the energy storage tank (1) into a heating chamber and an energy storage chamber. An electric heater (3) is installed in the heating chamber for heating the energy storage chamber; A heat exchange assembly is fixedly connected to the inner wall of the energy storage tank (1); the heat exchange assembly includes: a heat exchange tube (4), which is disposed in the energy storage chamber for storing liquid; A movable structure is fixedly connected to the heat exchange tube (4) and is used to move the heat exchange tube (4); Two sets of heat insulation structures are symmetrically arranged on both sides of the energy storage tank (1) and are fixedly connected to the energy storage tank (1).

2. The thermal storage steam generator according to claim 1, characterized in that: The movable structure includes: A horizontal plate (8) has a first groove on its surface; Two sets of vertical plates (7), each set of vertical plates (7) is fixedly connected at both ends to the horizontal plate (8) and the heat exchange tube (4); The rotating component (9) is composed of a disc and a first cylindrical pin. The surface edge of the disc is fixedly connected to the first cylindrical pin. The first cylindrical pin is disposed in the first sliding groove, so that the rotating component (9) is slidably connected to the horizontal plate (8) through the first cylindrical pin. The first motor (10) is fixedly connected to the axis of the disk at its output end; The heat insulation box (11) is fitted on the outside of the first motor (10) and is fixedly connected to the first motor (10).

3. The thermal storage steam generator according to claim 1, characterized in that: The heat exchange assembly also includes: A connecting pipe (5) is disposed on the outside of the heat exchange tube (4) and is connected to the heat exchange tube (4); Two sets of sealing rings (6) are provided. The inner wall of each sealing ring (6) is fixedly connected to one end of the heat exchange tube (4). The outer side of the sealing ring (6) is tightly fitted to the inner wall of the connecting tube (5), so that the sealing ring (6) can move vertically inside the connecting tube (5).

4. The thermal storage steam generator according to claim 1, characterized in that: The energy storage tank (1) has two sets of through slots on both sides.

5. The thermal storage steam generator according to claim 4, characterized in that: Each set of thermal insulation structures includes: The protective box (29) is fixedly connected to the outside of the energy storage tank (1); The first heat insulation plate (12) is disposed in the through groove and is slidably connected to the energy storage tank (1) through the through groove; The worm gear (16) is located inside the protective box (29); The output end of the second motor (17) is fixedly connected to one end of the worm (16); A worm gear (15) meshes with the worm (16), one end of which has its axis passing through the protective box (29) and is rotatably connected to the protective box (29); A rotating plate (14) is provided, one end of which is fixedly connected to the other end of the worm gear (15) on the shaft; a second sliding groove is provided at the other end of the rotating plate (14); The connector (13) is composed of a first rod, a second rod, and a second cylindrical pin. One end of the first rod is fixedly connected to one end of the second rod, and the other end of the first rod is fixedly connected to the end of the first heat insulation plate (12) away from the energy storage tank (1). The other end of the second rod is fixedly connected to the second cylindrical pin. The second cylindrical pin is disposed in the second sliding groove, so that the connector (13) is slidably connected to the rotating plate (14) through the second cylindrical pin.

6. The thermal storage steam generator according to claim 5, characterized in that: The heat insulation structure further includes: two sets of second heat insulation plates (28); both sets of second heat insulation plates (28) are disposed inside the energy storage tank (1) and are fixedly connected to the energy storage tank (1); the upper end surface of the second heat insulation plate (28) is flush with the upper end surface of the first heat insulation plate (12), so that after the two sets of second heat insulation plates (28) and the two sets of first heat insulation plates (12) are connected, heat can be prevented from being transferred to the upper part.

7. The thermal storage steam generator according to claim 6, characterized in that: Also includes: Cleaning structure; the cleaning structure is disposed above the second heat insulation plate (28) and is used to clean the surface of the heat exchange tube (4).

8. The thermal storage steam generator according to claim 7, characterized in that: The cleanup structure includes: The heat insulation frame (23) is fixedly connected to a set of the second heat insulation boards (28); A movable heat insulation frame (22) is disposed inside the fixed heat insulation frame (23), and the outer wall of the movable heat insulation frame (22) is in contact with the inner wall of the fixed heat insulation frame (23), so that the movable heat insulation frame (22) can slide in the fixed heat insulation frame (23); The transmission assembly (24) consists of a belt and two sets of pulleys, with the edges of the two sets of pulleys in close contact with the belt; one end of the shaft of the two sets of pulleys passes through the movable heat insulation frame (22) and is rotatably connected to the movable heat insulation frame (22); Two sets of rotating rollers (25), the axis of each set of rotating rollers (25) is fixedly connected to one end of the pulley that passes through the movable heat insulation frame (22); The fourth motor (26) is fixedly connected to the other end of the shaft of a set of pulleys.

9. The thermal storage steam generator according to claim 8, characterized in that: The cleaning structure further includes a driving structure; the driving structure is disposed above the fixed heat insulation frame (23) and is used to push the movable heat insulation frame (22) to move.

10. The thermal storage steam generator according to claim 9, characterized in that: The driving structure includes: Movable component (21), one end of which is fixedly connected to the movable heat insulation frame (22); A movable block (20) is disposed at the other end of the movable component (21) and is fixedly connected to the movable component (21); A threaded rod (18) has one end passing through the movable block (20) and being threadedly connected to the movable block (20); the other end of the threaded rod (18) passes through the energy storage tank (1) and is rotatably connected to the energy storage tank (1). The third motor (19) is fixedly connected to one end of the threaded rod (18) that passes through the energy storage tank (1).

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