Steam heat storage device with waste heat recovery structure

Abstract

The invention discloses a steam heat storage device with a waste heat recovery structure, which comprises a stable support frame and a steam heat storage tank connected to the stable support frame, and further comprises a first connecting cover and a second connecting cover which are correspondingly arranged at the outer end of the steam heat storage tank up and down, the inner end of the first connecting cover and the inner end of the second connecting cover are fixedly arranged with a flange plate, the flange plate is connected with a mounting flange bolt in a penetrating mode, the top end of the first connecting cover is connected with a second inlet pipe opening and a second outlet pipe opening, and the bottom end of the second inlet pipe opening is connected with a first connecting pipe. The first connecting pipe and the second connecting pipe are arranged in a wave shape at equal intervals. According to the steam heat storage device with the waste heat recovery structure, the heat transfer efficiency is improved through the sleeve type heat accumulator, meanwhile, under the arrangement of the adjusting assembly, the redundant heat energy recoverer can be independently collected and disassembled, the heat storage pipe connecting positions are stably connected, and the leakage condition is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of steam heat storage devices, and specifically to a steam heat storage device with a waste heat recovery structure. Background Art

[0002] A steam heat storage device is a device for storing and regulating steam energy, mainly used to balance the fluctuations of steam load, ensuring the stability and economy of the heating system. Steam heat storage technology can effectively achieve the balance between supply and demand and promote the replacement of electric energy in related industries. Restricted by manufacturing processes, the overall performance of steam heat storage tanks has not been perfected yet. For example: A boiler steam heat storage device provided in the publication number CN217763377U includes a heat storage body and a controller connected to the heat source output end of a steam boiler. There is a heat exchanger for controlling the heat source transmission between the heat storage body and the steam boiler. The top of the heat storage body is provided with a water inlet, the bottom is provided with a water outlet, and a heat storage mechanism is also arranged inside the heat storage body. The heat storage mechanism includes a heat insulation layer arranged inside the heat storage body, a high specific heat capacity heat conduction ring arranged inside the heat storage body, and high specific heat capacity heat conduction sheets inserted on the high specific heat capacity heat conduction ring. A temperature sensor is also arranged inside the heat storage body. The temperature sensor and the heat exchanger are both electrically connected to the controller, solving the problem that in the traditional steam heat storage device, when adjusting the steam load, due to the small heat capacity of the heat storage device, it is easy to cause unstable heating temperature.

[0003] Another example is a low-pressure loss steam heat storage device provided in the publication number CN211823933U, including a steam heat storage tank body. A steel bar plate is arranged on the outer shell of the steam heat storage tank body. A steam inlet and a steam outlet are arranged above the steam heat storage tank body, and the steam inlet is connected to a steam distribution pipeline inside the steam heat storage tank body. A first nozzle is arranged on the steam distribution pipeline. The bottom outlet of the steam heat storage tank body is connected to the inlet of a disturbance pump, and the outlet of the disturbance pump is connected to a liquid distribution pipeline inside the steam heat storage tank body through a control valve. A second nozzle is arranged on the liquid distribution pipeline. The present invention has the advantages of small pressure loss, high heat storage efficiency, good heat preservation performance, low operating cost, simple operation process, etc., and is applicable to many fields such as petroleum, chemical industry, food processing, thermal power generation, and heating.

[0004] The existing technical solutions have the following defects. For example, the heat storage device arranged inside the existing steam heat storage device has a low energy storage density and a low heat charging efficiency. At the same time, after the heat storage device is installed, later maintenance, cleaning, and disassembly are all relatively troublesome, and the disassembly part is also prone to leakage. We propose a steam heat storage device with a waste heat recovery structure to facilitate solving the problems mentioned above. Summary of the Invention

[0005] The interference of the present invention lies in providing a steam heat storage device with a waste heat recovery structure to solve the problems in the above-mentioned background technology, that is, the heat accumulator set inside the existing steam heat storage device has a low energy storage density, a low heat charging efficiency of the heat accumulator, and it is relatively troublesome to overhaul, clean and disassemble the heat accumulator in the later stage after installation, and the disassembly part is also prone to leakage.

[0006] To achieve the above object, the present invention provides the following technical solutions: A steam heat storage device with a waste heat recovery structure, including: a stable support frame, and a steam heat storage tank connected to the stable support frame, and further including: The outer ends of the upper and lower parts of the steam heat storage tank are correspondingly provided with a first connection cover and a second connection cover, and the inner ends of the first connection cover and the second connection cover are fixedly provided with flange plates, and the flange plates are connected by bolts through the installation flange. The top of the first connection cover is respectively connected with a second inlet pipe and a second outlet pipe, and the bottom end of the second inlet pipe is connected with a first connection pipe, and the first connection pipe and the second connection pipe are arranged at equal intervals in a wave shape; The connected first connection pipes are communicated with a third connection pipe. A first inlet pipe is arranged on the upper side of the first connection cover. The lower side of the steam heat storage tank is connected with a first outlet pipe. The middle part of the steam heat storage tank is connected with an installation tank cover, and a waste heat recovery tank is fixed at the outer end of the installation tank cover. The outer end of the waste heat recovery tank is connected with the steam heat storage tank through a detachable adjustment component; A heat energy collecting pipe is connected inside the waste heat recovery tank, and the heat energy collecting pipe is connected with the first connection pipe through a sealing component.

[0007] As a preferred technical solution of the present invention, the connecting plate at the bottom of the first connection pipe fits on the inner wall of the steam heat storage tank, and through holes are uniformly arranged inside the connecting plate.

[0008] As a preferred technical solution of the present invention, the first inlet pipe is communicated with the first connection pipe, the bottom end of the first connection pipe is communicated with the first outlet pipe, and a composite phase change material is arranged inside the first connection pipe. The composite phase change material includes expanded graphite and foam metal to achieve the heat storage effect.

[0009] As a preferred technical solution of the present invention, the waste heat recovery tank and the steam heat storage tank are vertically clamped, the outer surface of the waste heat recovery tank is provided with a threaded structure, and the inner wall of the waste heat recovery tank is provided with an inner heat preservation board.

[0010] As a preferred technical solution of the present invention, the adjustment component includes an adapter sleeve installed on the outer surface of the waste heat recovery tank, a first connection block is welded and fixed at the outer end of the adapter sleeve, and an adjustment rod is obliquely arranged at the outer end of the first connection block. The outer end of the adjustment rod is rotatably provided with a second connection block, and a connecting rod penetrates through the inside of the second connection block.

[0011] As a preferred technical solution of the present invention, the adjusting rod is connected to the first connecting block in a rotating manner, and the connecting sleeve is nested outside the thread on the surface of the waste heat recovery tank.

[0012] As a preferred technical solution of the present invention, the connecting rod is connected to the second connecting block by a thread, and the second connecting block is slidably arranged with the steam heat storage tank to play a role in stably moving the waste heat recovery tank.

[0013] As a preferred technical solution of the present invention, the heat energy collecting pipe is fixedly welded to the installation tank cover through a reinforcing plate; The sealing assembly includes a connecting block arranged at the outer end of the heat energy collecting pipe, and a spacer pipe communicated with the first connecting pipe is connected to the outside of the connecting block. A spacer sleeve corresponding to the heat energy collecting pipe is arranged at the outer end of the spacer pipe, and a positioning groove is formed inside the spacer sleeve.

[0014] As a preferred technical solution of the present invention, the connecting blocks are arranged at equal angles at the outer end of the heat energy collecting pipe, and the connecting block and the spacer sleeve form a sealed clamping structure.

[0015] As a preferred technical solution of the present invention, the heat energy collecting pipe is in a "U" shape and is communicated with the first conveying pipe at its top. The top end of the first conveying pipe is connected to a second conveying pipe, and the top end of the second conveying pipe is connected to an installation air pump.

[0016] Compared with the prior art, the beneficial effects of the present invention are: for this steam heat storage device with a waste heat recovery structure, the heat transfer efficiency can be improved through the shell-and-tube heat accumulator. With the setting of the adjusting assembly, the excess heat energy collector can be separately collected and disassembled, and the connection of the heat storage pipes can be stably connected to reduce leakage; By installing the heat energy collecting pipe inside the waste heat recovery tank, then nesting the reinforcing plate inside the heat energy collecting pipe, and installing the reinforcing plate and the installation tank cover. When the waste heat recovery tank is vertically connected inside the steam heat storage tank, at this time, the first connecting pipe connected to the inside of the waste heat recovery tank is connected to the heat energy collecting pipe through the spacer pipe. At the same time, an inner heat preservation plate is arranged inside the waste heat recovery tank, and the waste heat recovery tank is heat-stored through the inner heat preservation plate. Heat exchange is carried out inside the first connecting pipe through heat and cold exchange. The heat transfer fluid passes through the inside of the first connecting pipe for heat exchange, and the cold fluid flows sequentially through the third connecting pipe and finally discharges from the second inlet and outlet pipe. A composite phase change material is arranged inside the first connecting pipe. The composite phase change material includes expanded graphite and foam metal. It has the advantages of large latent heat and high energy storage density during heat exchange and energy storage. The phase change material can effectively improve the thermal conductivity of the material, thereby reducing liquid leakage; By arranging the connecting blocks at equal angles at the outer end of the heat energy collecting pipe, and the connecting blocks and the spacer sleeve form a sealed clamping structure, the heat energy collecting pipe is clamped into the inside of the spacer pipe. The connecting blocks are arranged at equal angles at the outer end of the heat energy collecting pipe. At the same time, a spacer sleeve is arranged inside the spacer pipe, and a groove-shaped structure matching the connecting blocks is opened inside the spacer sleeve. After the waste heat recovery, by clamping the heat energy collecting pipe into the inside of the spacer sleeve and connecting the inside through the clamping of the connecting blocks and the positioning grooves at the connection, the connection can be stably connected. Leakage usually occurs at the connection of the tubular heat accumulator. This setting can stably connect the connection, reduce the occurrence of leakage, and at the same time facilitate later disassembly and detachment; When the waste heat recovery tank is vertically connected inside the steam heat storage tank, the first connecting pipe connected to the inside of the waste heat recovery tank is connected to the heat energy collecting pipe through the spacer pipe. At the same time, an inner heat preservation board is arranged inside the waste heat recovery tank, and the waste heat recovery tank is heat-stored through the inner heat preservation board. The connecting rod and the second connecting block are connected by a threaded method, and the second connecting block is slidably arranged with the steam heat storage tank to play a role in stabilizing the movement of the waste heat recovery tank. After the waste heat recovery tank is separated from the first connecting pipe, by rotating the waste heat recovery tank, the waste heat recovery tank is separated from the connecting sleeve, and the waste heat recovery tank can be separately extracted and replaced. The inside of the waste heat recovery tank can be cleaned and repaired, which increases the use efficiency. The waste heat recovery tank is separately extracted, and at the same time, the horizontal displacement can stably separate the heat energy collecting pipe from the spacer sleeve, protecting the disassembly state of the connection, and being able to reduce the wear on the connection during disassembly and increase the service life of the parts. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall sectional structure of the connection between the connecting sleeve and the steam heat storage tank of the present invention; Figure 3 It is a schematic diagram of the overall sectional structure of the connection between the steam heat storage tank and the first connecting pipe of the present invention; Figure 4 For the present invention Figure 2 The enlarged structure diagram at A in; Figure 5 It is a schematic diagram of the overall sectional structure of the connection between the installation tank cover and the spacer pipe of the present invention; Figure 6 It is a schematic diagram of the overall sectional structure of the connection between the heat energy collecting pipe and the reinforcement plate of the present invention; Figure 7 For the present invention Figure 6 The enlarged structure diagram at B in; Figure 8 It is a schematic diagram of the overall exploded structure of the connection between the waste heat recovery tank and the spacer pipe of the present invention.

[0018] In the figure: 1, stable support frame; 2, steam heat storage tank; 3, installation flange bolt; 4, first connection cover; 5, flange plate; 6, pressure gauge; 7, connection plate; 8, first connection pipe; 9, second connection pipe; 10, third connection pipe; 11, first inlet pipe orifice; 12, first inlet and outlet pipe orifice; 13, second inlet pipe orifice; 14, second inlet and outlet pipe orifice; 15, second connection cover; 16, installation tank cover; 17, waste heat recovery tank; 18, spacer pipe; 19, heat energy collection pipe; 20, reinforcement plate; 21, first connection block; 22, adjusting rod; 23, second connection block; 24, connecting rod; 25, inner insulation board; 26, connecting sleeve; 27, connecting block; 28, positioning groove; 29, spacer sleeve; 30, first conveying pipe; 31, second conveying pipe; 32, installation air pump. Detailed implementation mode

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0020] Please refer to Figure 1-8 , the present invention provides a technical solution: a steam heat storage device with a waste heat recovery structure. When using this steam heat storage device with a waste heat recovery structure, specifically as follows Figure 1 and Figure 3In it, a steam accumulator 2 is installed at the upper end of the stable support frame 1. The steam accumulator 2 is installed on the stable support frame 1 to install and support the steam accumulator 2. At the same time, a first connection cover 4 and a second connection cover 15 are correspondingly arranged up and down at the outer end of the steam accumulator 2. The inner ends of the first connection cover 4 and the second connection cover 15 are fixedly arranged with a flange plate 5, and the flange plate 5 is connected through the installation flange bolt 3. By passing the installation flange bolt 3 through the inside of the flange plate 5 and rotating the installation flange bolt 3, the installation flange bolt 3 is connected to the inside of the flange plate 5, so that the first connection cover 4 and the second connection cover 15 are connected to the steam accumulator 2. When disassembly is required, reverse-rotate the installation flange bolt 3 to disconnect the first connection cover 4 and the second connection cover 15 from the steam accumulator 2, which can be better replaced. At the same time, the top of the steam accumulator 2 can be opened to observe and repair the inside. The top end of the first connection cover 4 is respectively connected with a second inlet pipe 13 and a second inlet and outlet pipe 14. The bottom end of the second inlet pipe 13 is connected with a first connecting pipe 8, and the first connecting pipe 8 and the second connecting pipe 9 are arranged at equal intervals in a wavy shape. A first inlet pipe 11 is arranged on the upper side of the first connection cover 4, and the first inlet pipe 11 is communicated with the first connecting pipe 8. By introducing steam into the inside of the first inlet pipe 11 and into the inside of the first connecting pipe 8, since the first connecting pipe 8 is communicated with the third connecting pipe 10, and the first connecting pipe 8 and the second connecting pipe 9 are arranged at equal intervals in a wavy shape inside the steam accumulator 2, the steam enters the inside of the first connecting pipe 8 and the second connecting pipe 9 for heat flow. At the same time, the cold fluid enters the inside of the third connecting pipe 10 through the inside of the second inlet pipe 13, and heat exchange is carried out through heat and cold exchange. The heat transfer fluid passes through the inside of the first connecting pipe 8 for heat exchange, and the cold fluid flows sequentially through the third connecting pipe 10 and finally is discharged from the second inlet and outlet pipe 14. The lower side of the steam accumulator 2 is connected with a first inlet and outlet pipe 12, and the hot steam is discharged from the inside of the first inlet and outlet pipe 12. The bottom end of the first connecting pipe 8 is communicated with the first inlet and outlet pipe 12. Since a composite phase change material is arranged inside the first connecting pipe 8, the composite phase change material includes expanded graphite and foam metal, which has the advantages of large latent heat and large energy storage density during heat exchange and energy storage. The phase change material can effectively improve the thermal conductivity of the material, thereby reducing liquid leakage. At the same time, the first connecting pipe 8, the second connecting pipe 9 and the third connecting pipe 10 form a shell-and-tube heat accumulator with a large heat exchange area and improved heat transfer efficiency.

[0021] Specifically, such as Figure 5 , Figure 6 and Figure 7In it, since the middle part of the steam heat storage tank 2 is connected with the installation tank cover 16, when heat exchange is carried out inside the first connecting pipe 8 and the second connecting pipe 9, the pressure inside the steam heat storage tank 2 is observed through the setting of the pressure gauge 6. And the outer end of the installation tank cover 16 is fixed with the waste heat recovery tank 17, and the outer end of the waste heat recovery tank 17 is connected to the steam heat storage tank 2 through a detachable adjustment component. When the thermal energy pressure inside the first connecting pipe 8 is too high, due to the vertical clamping arrangement of the waste heat recovery tank 17 and the steam heat storage tank 2, the heat energy collecting pipe 19 is fixedly welded to the installation tank cover 16 through the reinforcing plate 20. By installing the heat energy collecting pipe 19 inside the waste heat recovery tank 17, and then nesting the reinforcing plate 20 inside the heat energy collecting pipe 19 and installing it with the installation tank cover 16 through the reinforcing plate 20. When the waste heat recovery tank 17 is vertically connected inside the steam heat storage tank 2, at this time, the first connecting pipe 8 connected to the inside of the waste heat recovery tank 17 is connected to the heat energy collecting pipe 19 through the spacer pipe 18. At the same time, an inner heat preservation plate 25 is arranged inside the waste heat recovery tank 17, and the waste heat recovery tank 17 is heat-stored through the inner heat preservation plate 25. During the heat exchange inside the first connecting pipe 8, the connecting plate 7 at the bottom of the first connecting pipe 8 fits on the inner wall of the steam heat storage tank 2, and through holes are evenly arranged inside the connecting plate 7. When the thermal energy inside the first connecting pipe 8 is excessive, the excess thermal energy enters the inside of the heat energy collecting pipe 19 through the spacer pipe 18 for storing the excess thermal energy, so as to achieve the effect of waste heat recovery. The heat energy collecting pipe 19 is connected to the inside of the waste heat recovery tank 17, and the heat energy collecting pipe 19 is connected to the first connecting pipe 8 through a sealing component. The sealing component includes an engaging block 27 arranged at the outer end of the heat energy collecting pipe 19, and a spacer pipe 18 connected to the outside of the engaging block 27 and communicated with the first connecting pipe 8 is arranged. An interval sleeve 29 corresponding to the heat energy collecting pipe 19 is arranged at the outer end of the spacer pipe 18, and a positioning groove 28 is arranged inside the interval sleeve 29. During the process of waste heat recovery, by clamping the heat energy collecting pipe 19 into the inside of the spacer pipe 18, the engaging blocks 27 are arranged at equal angles at the outer end of the heat energy collecting pipe 19. At the same time, an interval sleeve 29 is arranged inside the spacer pipe 18, and a groove-shaped structure matching the engaging block 27 is arranged inside the interval sleeve 29. After the waste heat recovery, by clamping the heat energy collecting pipe 19 into the inside of the interval sleeve 29, the connection part is connected inside through the clamping of the engaging block 27 and the positioning groove 28, which can stably connect the connection part. Leakage usually occurs at the connection part of the tubular heat accumulator. This setting can stably connect the connection part, reduce the occurrence of leakage, and at the same time facilitate later disassembly and detachment.

[0022] Specifically, such as Figure 2 、 Figure 4 and Figure 8In this case, since the waste heat recovery tank 17 is vertically connected to the inside of the steam accumulator tank 2, a threaded structure is provided on the outer surface of the waste heat recovery tank 17. The waste heat recovery tank 17 is connected to the steam accumulator tank 2 through an adjustment assembly. The adjustment assembly includes an adapter sleeve 26 installed on the outer surface of the waste heat recovery tank 17. A first connection block 21 is welded and fixed to the outer end of the adapter sleeve 26. An adjustment rod 22 is inclined at the outer end of the first connection block 21. A second connection block 23 is rotatably arranged at the outer end of the adjustment rod 22. A connecting rod 24 penetrates through the inside of the second connection block 23. The adjustment rod 22 is connected to the first connection block 21 in a rotational manner. The adapter sleeve 26 is nested outside the thread on the surface of the waste heat recovery tank 17. By nesting the adapter sleeve 26 on the outer surface of the waste heat recovery tank 17, the adapter sleeve 26 is snapped into the internal groove of the steam accumulator tank 2. The waste heat recovery tank 17 is installed through the adjustment assembly. The connecting rod 24 is connected to the second connection block 23 in a threaded manner. By rotating the connecting rod 24, the connecting rod 24 drives the second connection block 23 to slide inside the steam accumulator tank 2. At the same time, the adjustment rod 22 is inclined. Under the sliding of the second connection block 23, the adjustment rod 22 rotates inside the first connection block 21 and the second connection block 23. At this time, the adapter sleeve 26 drives the waste heat recovery tank 17 to slide inside the steam accumulator tank 2 at the same time, so that the heat collecting pipe 19 inside the waste heat recovery tank 17 is horizontally separated from the spacer pipe 18 outside the first connection pipe 8, and the waste heat recovery tank 17 is separately extracted. At the same time, the horizontal displacement can stably separate the heat collecting pipe 19 from the spacer sleeve 29, protecting the disassembly state of the connection, being able to reduce the wear on the connection during disassembly, increasing the service life of the parts. After the waste heat recovery tank 17 is separated from the first connection pipe 8, by rotating the waste heat recovery tank 17, the waste heat recovery tank 17 is separated from the adapter sleeve 26, and the waste heat recovery tank 17 can be separately extracted and replaced. The inside of the waste heat recovery tank 17 can be cleaned and repaired, increasing the use efficiency. The heat collecting pipe 19 is arranged in a "U" shape and is connected to the first delivery pipe 30 at its top. The top end of the first delivery pipe 30 is connected to a second delivery pipe 31. The top end of the second delivery pipe 31 is connected to an installation air pump 32. At the same time, after the waste heat extracted from the inside of the first connection pipe 8 enters the heat collecting pipe 19, by starting the installation air pump 32, the heat collecting pipe 19 enters the inside of the first connection pipe 8 again through the second delivery pipe 31, performing cyclic heat exchange on the waste heat, saving resources. This is the usage method of the steam accumulator device with a waste heat recovery structure.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A steam heat storage device with a waste heat recovery structure, comprising: A stable support frame (1) and a steam heat storage tank (2) connected to the stable support frame (1), characterized in that it further comprises: At the upper and lower ends of the outer end of the steam heat storage tank (2), a first connection cover (4) and a second connection cover (15) are correspondingly arranged. The inner ends of the first connection cover (4) and the second connection cover (15) are fixedly arranged with a flange plate (5), and the flange plate (5) is connected through bolts with an installation flange (3). At the top of the first connection cover (4), a second inlet pipe (13) and a second inlet and outlet pipe (14) are respectively connected. The bottom end of the second inlet pipe (13) is connected to a first connecting pipe (8), and the first connecting pipe (8) and the second connecting pipe (9) are arranged at equal intervals in a wavy shape; The connected first connecting pipes (8) are communicated with a third connecting pipe (10). At the upper side of the first connection cover (4), a first inlet pipe (11) is arranged. At the lower side of the steam heat storage tank (2), a first inlet and outlet pipe (12) is connected. In the middle of the steam heat storage tank (2), an installation tank cover (16) is connected. The outer end of the installation tank cover (16) is fixedly provided with a waste heat recovery tank (17). The outer end of the waste heat recovery tank (17) is connected to the steam heat storage tank (2) through a detachable adjustment component; Inside the waste heat recovery tank (17), a heat energy collecting pipe (19) is connected, and the heat energy collecting pipe (19) is connected to the first connecting pipe (8) through a sealing component.

2. The steam heat storage device with a waste heat recovery structure according to claim 1, wherein: The connecting plate (7) at the bottom of the first connecting pipe (8) is attached to the inner wall of the steam heat storage tank (2), and through holes are uniformly arranged inside the connecting plate (7).

3. The steam heat storage device with a waste heat recovery structure according to claim 1, characterized in that: The first inlet pipe (11) is communicated with the first connecting pipe (8), the bottom end of the first connecting pipe (8) is communicated with the first inlet and outlet pipe (12), and a composite phase change material is arranged inside the first connecting pipe (8). The composite phase change material includes expanded graphite and foam metal to achieve the heat storage effect.

4. A steam heat storage device with a waste heat recovery structure according to claim 1, characterized in that: The waste heat recovery tank (17) and the steam heat storage tank (2) are vertically clamped. The outer surface of the waste heat recovery tank (17) is provided with a threaded structure, and an inner heat preservation plate (25) is arranged on the inner wall of the waste heat recovery tank (17).

5. A steam heat storage device with a waste heat recovery structure according to claim 1, characterized in that: The adjustment component includes an adapter sleeve (26) installed on the outer surface of the waste heat recovery tank (17). The outer end of the adapter sleeve (26) is welded and fixed with a first connecting block (21). At the outer end of the first connecting block (21), an adjustment rod (22) is obliquely arranged. At the outer end of the adjustment rod (22), a second connecting block (23) is rotatably arranged, and a connecting rod (24) penetrates through the second connecting block (23).

6. A steam thermal energy storage device with a waste heat recovery structure according to claim 1, characterized in that: The adjustment rod (22) is connected to the first connecting block (21) in a rotational manner, and the adapter sleeve (26) is nested outside the thread on the surface of the waste heat recovery tank (17).

7. The steam heat storage device with a waste heat recovery structure according to claim 5, characterized in that: The connecting rod (24) is connected to the second connecting block (23) in a threaded manner, and the second connecting block (23) is slidably arranged on the steam heat storage tank (2) to play a role in stabilizing the movement of the waste heat recovery tank (17).

8. A steam heat storage device with a waste heat recovery structure according to claim 1, characterized in that: The heat energy collecting pipe (19) is welded and fixed to the installation tank cover (16) through a reinforcing plate (20); The sealing assembly includes an adapter block (27) arranged at the outer end of the heat collection pipe (19), and an interval pipe (18) communicated with the first connecting pipe (8) is connected to the outside of the adapter block (27). An interval sleeve (29) corresponding to the heat collection pipe (19) is arranged at the outer end of the interval pipe (18), and a positioning groove (28) is formed inside the interval sleeve (29).

9. The steam heat storage device with a waste heat recovery structure according to claim 8, characterized in that: The adapter blocks (27) are arranged at equal angles at the outer end of the heat collection pipe (19), and the adapter block (27) and the interval sleeve (29) form a sealed clamping structure.

10. A steam heat storage device with a waste heat recovery structure according to claim 1, characterized in that: The heat collection pipe (19) is arranged in a "U" shape and communicated with a first delivery pipe (30) at its top. The top end of the first delivery pipe (30) is connected to a second delivery pipe (31), and the top end of the second delivery pipe (31) is connected to an installation air pump (32).

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