Industrial waste heat hierarchical storage equipment

Abstract

The invention belongs to the technical field of waste heat recovery, and discloses industrial waste heat hierarchical storage equipment which comprises a collecting tank, heat exchange assemblies are arranged in the collecting tank at equal angles, a cover plate is movably installed at the top end of the collecting tank, a power assembly is fixedly installed at the top end of the cover plate, and the number of the heat exchange assemblies is three. A distribution assembly is arranged among the three heat exchange assemblies. The three heat exchange assemblies are arranged in the collecting tank at equal angles and communicate with the cold medium storage tanks at the same time, and heat exchange media with different temperatures are arranged in the three cold medium storage tanks at the same time, so that the three different heat exchange media can be heated to the proper temperature; three heat exchange media with different temperatures are directly obtained and are directly utilized in a graded mode, the problem that follow-up cooling is needed when a single heat exchange medium is adopted for waste heat recovery in a traditional device is solved, loss is reduced, and the waste heat utilization rate is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of waste heat recovery, and in particular relates to an industrial waste heat grading storage device. Background Art

[0002] The working principle of industrial waste heat recovery is mainly based on the principle of heat exchange. By installing waste heat recovery devices, such as heat exchangers, waste heat boilers, etc., the waste heat generated in the industrial production process can be transferred to the medium that needs to be heated (such as water, air, etc.), thereby realizing the recovery and reuse of heat energy. The recovered heat energy can be used for preheating raw materials, heating equipment, heating, power generation and many other purposes.

[0003] Conventional industrial waste heat recovery devices mainly achieve heat exchange through heat exchange media. The main principle is to pass hot air into the interior of the heat exchange tube and contact it with the heat exchange medium, and heat the heat exchange medium to achieve heat exchange operation. However, the waste heat recovery devices currently used can only heat the heat exchange medium to the highest temperature it can be heated to achieve utilization, and can only achieve graded utilization after subsequent cooling. It is impossible to achieve graded storage application at the recovery end.

[0004] At the same time, the waste heat recovery device currently used needs to completely discharge the heat exchange medium after heating the heat exchange medium to a predetermined temperature, and then import the heat exchange medium through an external infusion device. The entire heat exchange medium addition process is relatively complicated, and it is difficult to keep the heat exchange medium at a suitable temperature for precise utilization. Summary of the invention

[0005] The object of the present invention is to provide an industrial waste heat grading storage device to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an industrial waste heat graded storage device, comprising a collecting tank, wherein heat exchange components are arranged at equal angles inside the collecting tank, a cover plate is movably installed at the top of the collecting tank, a power component is fixedly installed at the top of the cover plate, the number of the heat exchange components is three, a distribution component is arranged between the three heat exchange components, the bottom end of the power component is connected to the outer side surfaces of the three heat exchange components, the bottom end of the distribution component is fixedly connected to a power tank, the middle part of the power tank is movably connected to a main shaft, the outer side surface of the main shaft is fixedly sleeved with an impeller located inside the power tank, the bottom end of the power tank is fixedly connected to a No. 2 three-way valve, a No. 1 three-way valve is installed at the bottom end of the inner cavity of the collecting tank, and the No. 1 three-way valve The bottom end of the heat exchange component is connected to the bottom end of the three heat exchange components, and the top of the linkage component is connected to the left and right sides of the main shaft. A cold medium storage tank is provided on one side of the top of the heat exchange component, and a hot medium storage tank is provided on the other side of the top of the heat exchange component. A hot medium discharge pipe is fixedly connected to the top of the hot medium storage tank, and the output end of the hot medium discharge pipe passes through the top of the collecting tank and is located on the outer side of the collecting tank. The three cold medium storage tanks store low-temperature heat exchange medium, medium-temperature heat exchange medium and high-temperature heat exchange medium respectively.

[0007] Before use, the bottom end of the No. 1 three-way valve must be connected to the waste heat air, and it must be ensured that the waste heat air has a certain pressure when it is input. At the same time, it must be ensured that the various heat exchange media inside the cold medium storage tank are in a full state to complete the preparations before waste heat recovery.

[0008] As a further technical solution of the present invention, the heat exchange assembly includes a heat exchange tube, the internal movable sleeve of the heat exchange tube is equipped with a piston plate, the bottom end of the piston plate is fixedly connected with a piston rod, the bottom end of the piston rod passes through the bottom end of the heat exchange tube and is connected to the linkage assembly.

[0009] As a further technical solution of the present invention, a drain valve is fixedly connected to the left side of the top end of the heat exchange tube, and an inlet valve is fixedly connected to the right side of the top end of the heat exchange tube. The top end of the inlet valve is connected to the bottom end of the cold medium storage tank, and the top end of the drain valve is connected to the bottom end of the hot medium storage tank. Both the inlet valve and the drain valve are one-way valves, and the directions of the valves are inward conduction and outward cutoff, and outward conduction and inward cutoff, respectively.

[0010] In the initial state, the piston plate is located at the top of the heat exchange tube. At this time, there is no heat exchange medium at the top of the inner cavity of the heat exchange tube and the bottom of the piston plate. At this time, the device is in a non-heat exchange state;

[0011] During heat exchange, the external waste heat air can be passed into the interior of the No. 1 three-way valve, and then into the interior of the No. 2 three-way valve through two extension pipes, and into the interior of the power tank through the top of the No. 2 three-way valve. At this time, it can be discharged through the top of the power tank. At the same time, the high-temperature and high-pressure waste heat air can drive the impeller to rotate, and the main shaft will rotate accordingly, and transmit power to the linkage assembly.

[0012] As a further technical solution of the present invention, the low-temperature heat exchange medium, the medium-temperature heat exchange medium, and the high-temperature heat exchange medium are lithium bromide solution, ethylene glycol aqueous solution, and molten salt, respectively.

[0013] When heat exchange is performed, low-temperature heat exchange medium, medium-temperature heat exchange medium and high-temperature heat exchange medium need to be stored in three cold medium storage tanks respectively. When heat exchange is performed, the various heat exchange mediums located inside the heat exchange tubes can be notified to contact with the waste heat air. The three different heat exchange mediums are heated to different temperatures to complete the heat exchange process and are stored separately inside the three heat exchange tubes to complete the graded utilization process.

[0014] By arranging three heat exchange components at equal angles inside the collection tank and connecting them with the cold medium storage tank, and arranging heat exchange media of different temperatures inside the three cold medium storage tanks, three different heat exchange media can be heated to a suitable temperature, and three heat exchange media of different temperatures can be directly obtained and directly graded for utilization, avoiding the problem of subsequent cooling required when traditional devices use a single heat exchange medium for waste heat recovery, reducing losses and improving waste heat utilization.

[0015] As a further technical solution of the present invention, the distribution assembly includes a distribution box, the bottom end of the distribution box is connected to the top end of the power tank, the distribution box rotates relative to the power tank, the outer side surface of the distribution box is fixedly connected with a diffusion cover at an equal angle, the number of the diffusion covers is the same as the heat exchange tube, and the diffusion cover is located on one side of the heat exchange tube.

[0016] The waste heat air discharged through the power tank then enters the interior of the distribution box, and then enters the interior of the three diffusion covers after being distributed by the distribution box. After being diffused by the diffusion covers, it contacts the outer side of the heat exchange tube, and simultaneously heats the heat exchange medium inside the three heat exchange tubes.

[0017] As a further technical solution of the present invention, the power assembly includes a mounting frame, the bottom end of the mounting frame is connected to the top end of the cover plate, a main motor is fixedly installed on the bottom end of the mounting frame, a power shaft is fixedly installed on the output end of the main motor, a transmission wheel is fixedly connected to the bottom end of the power shaft, the outer side surface of the transmission wheel is connected to the outer side surface of the heat exchange tube near the top position, and the three heat exchange tubes are installed at equal angles on the outer side surface of the transmission wheel.

[0018] When recovering waste heat, the main motor can be turned on to drive the power shaft to rotate. At this time, the transmission wheel rotates accordingly and drives the heat exchange tube to rotate. At this time, the three heat exchange tubes rotate circumferentially and drive the linkage assembly at the bottom to rotate. At this time, the three heat exchange tubes can rotate with the distribution box as the center, and the waste heat air discharged through the diffusion cover uniformly contacts the outer side surfaces of the three heat exchange tubes to complete the uniform heat exchange process.

[0019] By utilizing the coordination between the power component, the distribution component and the heat exchange component, the device can evenly contact the waste heat air with the heat exchange medium when recovering waste heat, so that the temperature of the heat exchange medium rises evenly, reducing the problem of decreased heat exchange efficiency caused by uneven heating of the heat exchange medium. The entire process can be completed automatically, further improving the utilization rate of waste heat.

[0020] As a further technical solution of the present invention, the linkage assembly includes a linkage frame, the top of the linkage frame is connected to the bottom end of the piston rod near the outer side surface, the three piston rods are installed at equal angles on the top of the linkage frame, and the middle of the linkage frame is fixedly connected with an installation shaft.

[0021] As a further technical solution of the present invention, both left and right ends of the outer side surface of the installation shaft are movably sleeved with a first connecting rod, and one end of the first connecting rod away from the installation shaft is movably connected to a second connecting rod.

[0022] As a further technical solution of the present invention, the two second connecting rods are both located on the outer side of the power tank, and the two second connecting rods are fixedly connected to the left and right sides of the main shaft respectively.

[0023] At the same time, when the waste heat air enters the power tank, the rotation of the main shaft can drive the second connecting rod to rotate. At this time, the first connecting rod swings accordingly and acts on the mounting shaft, and finally drives the linkage frame to move up and down reciprocatingly. When the linkage frame moves down, the piston rod and the piston plate can be pulled downward. At this time, negative pressure can be generated inside the heat exchange tube, and the unheated heat exchange medium in the cold medium storage tank is sucked into the heat exchange tube, and it is in contact with the waste heat air to complete the heat exchange process.

[0024] When the linkage frame moves upward, the piston plate can be driven to move upward, and the heated heat exchange medium can be discharged through the drain valve and enter the heat medium storage tank for temporary storage. When the heat medium storage tank is full, the heat exchange medium can be discharged through the heat medium discharge pipe for utilization. At the same time, the heat exchange medium can be supplemented through the cold medium storage tank, completing the process of automatic discharge and addition of heat exchange medium.

[0025] By utilizing the waste heat air required for heat exchange and through the cooperation between the linkage component and the heat exchange component, the heat exchange medium can be automatically added and the heat exchange medium can be automatically discharged after the waste heat air is introduced. The whole process is completed automatically without manual control of the adding and discharging process. At the same time, the temperature control of the heat exchange medium can be completed by controlling the input amount of the waste heat air and adjusting the entry and discharge rates of the heat exchange medium, thereby improving the usability of the device and further improving the recovery efficiency.

[0026] The beneficial effects of the present invention are as follows:

[0027] (1) The present invention arranges three heat exchange components at equal angles inside the collection tank, and connects the three heat exchange components with the cold medium storage tank. Meanwhile, heat exchange media of different temperatures are arranged inside the three cold medium storage tanks, so that the three different heat exchange media can be heated to a suitable temperature, and three heat exchange media of different temperatures are directly obtained, and they are directly graded for utilization, thereby avoiding the problem of subsequent cooling required when a single heat exchange medium is used for waste heat recovery in traditional devices, reducing losses, and improving waste heat utilization.

[0028] (2) The present invention utilizes the waste heat air required for heat exchange, and through the coordination between the linkage component and the heat exchange component, after the waste heat air is introduced, the heat exchange medium can be automatically added, and the heat exchange medium can be automatically discharged after heating. The whole process is completed automatically without manual control of the adding and discharging process. At the same time, the temperature of the heat exchange medium can be controlled by controlling the input amount of the waste heat air and adjusting the entry and discharge rates of the heat exchange medium, thereby improving the usability of the device and further improving the recovery efficiency.

[0029] (3) The present invention utilizes the cooperation between the power component, the distribution component and the heat exchange component, so that when the device is recovering waste heat, the waste heat air can be evenly contacted with the heat exchange medium, so that the temperature of the heat exchange medium rises evenly, reducing the problem of decreased heat exchange efficiency due to uneven heating of the heat exchange medium, and the entire process can be completed automatically, further improving the utilization rate of waste heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a cross-sectional schematic diagram of the internal structure of the collecting tank of the present invention;

[0032] Figure 3 It is a separate schematic diagram of the power assembly structure of the present invention;

[0033] Figure 4 It is a cross-sectional schematic diagram of the internal structure of the No. 1 three-way valve and the No. 2 three-way valve and the power tank of the present invention;

[0034] Figure 5 A separate schematic diagram of the distribution component structure of the present invention;

[0035] Figure 6 It is a separate schematic diagram of the linkage assembly structure of the present invention;

[0036] Figure 7 It is a schematic diagram of the coordination of the heat exchange assembly, the cold medium storage tank and the hot medium storage tank structure of the present invention;

[0037] Figure 8 It is a separate cross-sectional schematic diagram of the heat exchange component structure of the present invention.

[0038] In the figure: 1. collecting tank; 2. cover plate; 3. power assembly; 301. mounting frame; 302. main motor; 303. power shaft; 304. transmission wheel; 4. three-way valve No. 1; 5. extension pipe; 6. three-way valve No. 2; 7. power tank; 8. main shaft; 9. impeller; 10. distribution assembly; 101. distribution box; 102. diffusion cover; 11. linkage assembly; 111. linkage frame; 112. mounting shaft; 113. first connecting rod; 114. second connecting rod; 12. heat exchange assembly; 121. heat exchange tube; 122. piston plate; 123. piston rod; 124. liquid inlet valve; 125. liquid discharge valve; 13. cold medium storage tank; 14. hot medium storage tank; 15. hot medium discharge pipe. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] like Figures 1 to 8As shown, in an embodiment of the present invention, an industrial waste heat graded storage device includes a collecting tank 1, wherein heat exchange components 12 are arranged at equal angles inside the collecting tank 1, a cover plate 2 is movably installed on the top of the collecting tank 1, a power component 3 is fixedly installed on the top of the cover plate 2, and there are three heat exchange components 12 in total, a distribution component 10 is arranged between the three heat exchange components 12, the bottom end of the power component 3 is connected to the outer side surfaces of the three heat exchange components 12, the bottom end of the distribution component 10 is fixedly connected to a power tank 7, the middle part of the power tank 7 is movably connected to a main shaft 8, the outer side surface of the main shaft 8 is fixedly sleeved with an impeller 9 located inside the power tank 7, the bottom end of the power tank 7 is fixedly connected to a No. 2 three-way valve 6, a No. 1 three-way valve 4 is installed at the bottom end of the inner cavity of the collecting tank 1, and the bottom end of the No. 1 three-way valve 4 passes through the collecting tank 1, the front and rear ends of the No. 1 three-way valve 4 are fixedly connected with an extension pipe 5, the other end of the extension pipe 5 is connected with the left and right ends of the No. 2 three-way valve 6, the bottom end of the power tank 7 is provided with a linkage component 11, the bottom end of the linkage component 11 is connected to the bottom ends of three heat exchange components 12, the top of the linkage component 11 is connected to the left and right sides of the main shaft 8, a cold medium storage tank 13 is provided on one side of the top of the heat exchange component 12, and a hot medium storage tank 14 is provided on the other side of the top of the heat exchange component 12. The top of the hot medium storage tank 14 is fixedly connected with a hot medium discharge pipe 15, the output end of the hot medium discharge pipe 15 passes through the top of the collecting tank 1 and is located on the outer side of the collecting tank 1, and the three cold medium storage tanks 13 respectively store low-temperature heat exchange medium, medium-temperature heat exchange medium, and high-temperature heat exchange medium.

[0041] Before use, the bottom end of the No. 1 three-way valve 4 must be connected to the waste heat air, and at the same time, ensure that the waste heat air has a certain pressure when it is input. At the same time, ensure that the various heat exchange media inside the cold medium storage tank 13 are in a full state to complete the preparation before waste heat recovery.

[0042] like Figure 2 and Figure 7 as well as Figure 8 As shown, the heat exchange component 12 includes a heat exchange tube 121, and the heat exchange tube 121 has a piston plate 122 movably sleeved inside. The bottom end of the piston plate 122 is fixedly connected to a piston rod 123. The bottom end of the piston rod 123 passes through the bottom end of the heat exchange tube 121 and is connected to the linkage component 11. The left side of the top end of the heat exchange tube 121 is fixedly connected to a drain valve 125, and the right side of the top end of the heat exchange tube 121 is fixedly connected to an inlet valve 124. The top end of the inlet valve 124 is connected to the bottom end of the cold medium storage tank 13, and the top end of the drain valve 125 is connected to the bottom end of the hot medium storage tank 14. Both the inlet valve 124 and the drain valve 125 are one-way valves, and the directions of the valves are inward conduction and outward cutoff, and outward conduction and inward cutoff, respectively.

[0043] In the initial state, the piston plate 122 is located at the top of the heat exchange tube 121. At this time, there is no heat exchange medium at the top of the inner cavity of the heat exchange tube 121 and the bottom of the piston plate 122. At this time, the device is in a non-heat exchange state;

[0044] During heat exchange, the external waste heat air can be passed into the interior of the No. 1 three-way valve 4, and then enter the interior of the No. 2 three-way valve 6 through the two extension pipes 5, and enter the interior of the power tank 7 through the top of the No. 2 three-way valve 6. At this time, it can be discharged through the top of the power tank 7. At the same time, the high-temperature and high-pressure waste heat air can drive the impeller 9 to rotate, and the main shaft 8 will rotate accordingly, and transmit power to the linkage component 11.

[0045] like Figure 2 As shown, the low-temperature heat exchange medium, the medium-temperature heat exchange medium, and the high-temperature heat exchange medium are lithium bromide solution, ethylene glycol aqueous solution, and molten salt, respectively.

[0046] Embodiment: When performing heat exchange, low-temperature heat exchange medium, medium-temperature heat exchange medium and high-temperature heat exchange medium need to be stored inside three cold medium storage tanks 13 respectively. When performing heat exchange, the various heat exchange mediums inside the heat exchange tube 121 can be notified to contact with the waste heat air. The three different heat exchange mediums are heated to different temperatures to complete the heat exchange process, and are respectively stored inside the three heat exchange tubes 121 to complete the graded utilization process.

[0047] By arranging three heat exchange components 12 at equal angles inside the collecting tank 1 and connecting them with the cold medium storage tank 13, and arranging heat exchange media of different temperatures inside the three cold medium storage tanks 13, three different heat exchange media can be heated to a suitable temperature, and three heat exchange media of different temperatures can be directly obtained and directly graded for utilization, thereby avoiding the problem of subsequent cooling required when traditional devices use a single heat exchange medium for waste heat recovery, reducing losses and improving waste heat utilization.

[0048] like Figure 2 and Figure 5 As shown, the distribution assembly 10 includes a distribution box 101, the bottom end of the distribution box 101 is connected to the top end of the power tank 7, the distribution box 101 rotates relative to the power tank 7, and the outer side surface of the distribution box 101 is fixedly connected to a diffusion cover 102 at an equal angle. The number of the diffusion covers 102 is the same as the heat exchange tube 121, and the diffusion cover 102 is located on one side of the heat exchange tube 121.

[0049] The waste heat air discharged through the power tank 7 then enters the interior of the distribution box 101, and enters the interior of the three diffusion covers 102 after being distributed by the distribution box 101, and contacts the outer side surface of the heat exchange tube 121 after being diffused by the diffusion cover 102, and heats the heat exchange medium inside the three heat exchange tubes 121 at the same time.

[0050] like Figure 2 and Figure 3 As shown, the power assembly 3 includes a mounting frame 301, the bottom end of the mounting frame 301 is connected to the top end of the cover plate 2, a main motor 302 is fixedly installed at the bottom end of the mounting frame 301, a power shaft 303 is fixedly installed at the output end of the main motor 302, a transmission wheel 304 is fixedly connected to the bottom end of the power shaft 303, the outer side surface of the transmission wheel 304 is connected to the outer side surface of the heat exchange tube 121 near the top position, and three heat exchange tubes 121 are installed at equal angles on the outer side surface of the transmission wheel 304.

[0051] When recovering waste heat, the main motor 302 can be turned on to drive the power shaft 303 to rotate. At this time, the transmission wheel 304 rotates accordingly and drives the heat exchange tube 121 to rotate. At this time, the three heat exchange tubes 121 rotate circumferentially and drive the linkage assembly 11 at the bottom to rotate. At this time, the three heat exchange tubes 121 can rotate with the distribution box 101 as the center, and the waste heat air discharged through the diffusion cover 102 is uniformly contacted with the outer side surfaces of the three heat exchange tubes 121 to complete the uniform heat exchange process.

[0052] By utilizing the cooperation between the power component 3 and the distribution component 10 as well as the heat exchange component 12, the device can evenly bring the waste heat air into contact with the heat exchange medium when recovering waste heat, so that the temperature of the heat exchange medium rises evenly, reducing the problem of decreased heat exchange efficiency due to uneven heating of the heat exchange medium, and the entire process can be completed automatically, further improving the utilization rate of waste heat.

[0053] like Figure 2 and Figure 6 As shown, the linkage assembly 11 includes a linkage frame 111, the top of the linkage frame 111 is connected to the bottom end of the piston rod 123 at a position close to the outer side surface, three piston rods 123 are installed at equal angles on the top of the linkage frame 111, the middle of the linkage frame 111 is fixedly connected with a mounting shaft 112, the left and right ends of the outer side surface of the mounting shaft 112 are movably sleeved with a first connecting rod 113, the end of the first connecting rod 113 away from the mounting shaft 112 is movably connected with a second connecting rod 114, the two second connecting rods 114 are both located on the outer side surface of the power tank 7, and the two second connecting rods 114 are respectively fixedly connected to the left and right sides of the main shaft 8.

[0054] Embodiment: When the waste heat air enters the power tank 7, the rotation of the main shaft 8 can drive the second connecting rod 114 to rotate. At this time, the first connecting rod 113 swings accordingly and acts on the mounting shaft 112, and finally drives the linkage frame 111 to move up and down reciprocatingly. When the linkage frame 111 moves downward, the piston rod 123 and the piston plate 122 can be pulled downward. At this time, negative pressure can be generated inside the heat exchange tube 121, and the unheated heat exchange medium inside the cold medium storage tank 13 is sucked into the heat exchange tube 121, and it is in contact with the waste heat air to complete the heat exchange process;

[0055] When the linkage frame 111 moves upward, the piston plate 122 can be driven to move upward, and the heated heat exchange medium can be discharged through the drain valve 125 and enter the interior of the heat medium storage tank 14 for temporary storage. When the heat medium storage tank 14 is full, the heat exchange medium after heat exchange can be discharged through the heat medium discharge pipe 15 for utilization, and the heat exchange medium can be supplemented through the cold medium storage tank 13, completing the process of automatically discharging and adding the heat exchange medium.

[0056] By utilizing the waste heat air required for heat exchange and cooperating between the linkage component 11 and the heat exchange component 12, the heat exchange medium can be automatically added and the heat exchange medium can be automatically discharged after the waste heat air is introduced. The whole process is completed automatically without manual control of the adding and discharging processes. At the same time, the temperature control of the heat exchange medium can be completed by controlling the input amount of the waste heat air and adjusting the entry and discharge rates of the heat exchange medium, thereby improving the usability of the device and further improving the recovery efficiency.

[0057] Working principle and usage process:

[0058] Before use, the bottom end of the No. 1 three-way valve 4 needs to be connected to the waste heat air, and at the same time, it is necessary to ensure that the waste heat air has a certain pressure when it is input, and at the same time, it is necessary to ensure that the various heat exchange media inside the cold medium storage tank 13 are in a full state, and complete the preparation before waste heat recovery;

[0059] In the initial state, the piston plate 122 is located at the top of the heat exchange tube 121. At this time, there is no heat exchange medium at the top of the inner cavity of the heat exchange tube 121 and the bottom of the piston plate 122. At this time, the device is in a non-heat exchange state;

[0060] When heat exchange is performed, the waste heat air outside can be introduced into the interior of the No. 1 three-way valve 4, and then can enter the interior of the No. 2 three-way valve 6 through the two extension pipes 5, and enter the interior of the power tank 7 through the top of the No. 2 three-way valve 6, and then can be discharged through the top of the power tank 7. At the same time, the high-temperature and high-pressure waste heat air can drive the impeller 9 to rotate, and the main shaft 8 rotates accordingly, and transmits power to the linkage component 11;

[0061] When heat exchange is performed, low-temperature heat exchange medium, medium-temperature heat exchange medium and high-temperature heat exchange medium need to be stored in the three cold medium storage tanks 13 respectively. When heat exchange is performed, the various heat exchange mediums located in the heat exchange tube 121 can be notified to contact with the waste heat air. The three different heat exchange mediums are heated to different temperatures to complete the heat exchange process and are stored in the three heat exchange tubes 121 respectively to complete the graded utilization process.

[0062] The waste heat air discharged from the power tank 7 then enters the interior of the distribution box 101, and enters the interior of the three diffusion covers 102 after being distributed by the distribution box 101, and contacts the outer side of the heat exchange tube 121 after being diffused by the diffusion cover 102, and heats the heat exchange medium inside the three heat exchange tubes 121 at the same time;

[0063] When the waste heat is recovered, the main motor 302 can be turned on to drive the power shaft 303 to rotate. At this time, the transmission wheel 304 rotates accordingly and drives the heat exchange tube 121 to rotate. At this time, the three heat exchange tubes 121 rotate circumferentially, and at the same time drive the linkage assembly 11 at the bottom to rotate. At this time, the three heat exchange tubes 121 can rotate with the distribution box 101 as the center, and the waste heat air discharged through the diffusion cover 102 is then uniformly contacted with the outer side surfaces of the three heat exchange tubes 121, completing a uniform heat exchange process;

[0064] At the same time, when the waste heat air enters the power tank 7, the rotation of the main shaft 8 can drive the second connecting rod 114 to rotate, and the first connecting rod 113 swings accordingly, and acts on the mounting shaft 112, and finally drives the linkage frame 111 to move up and down reciprocatingly. When the linkage frame 111 moves down, the piston rod 123 and the piston plate 122 can be pulled to move downward, and negative pressure can be generated inside the heat exchange tube 121 at this time, and the unheated heat exchange medium in the cold medium storage tank 13 is sucked into the heat exchange tube 121, and it is in contact with the waste heat air, completing the heat exchange process;

[0065] When the linkage frame 111 moves upward, the piston plate 122 can be driven to move upward, and the heated heat exchange medium can be discharged through the drain valve 125 and enter the interior of the heat medium storage tank 14 for temporary storage. When the heat medium storage tank 14 is full, the heat exchange medium after heat exchange can be discharged through the heat medium discharge pipe 15 for utilization, and the heat exchange medium can be supplemented through the cold medium storage tank 13, completing the process of automatically discharging and adding the heat exchange medium.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An industrial waste heat grading storage device, comprising a collection tank (1), characterized in that: The interior of the collecting tank (1) is provided with heat exchange components (12) at equal angles. A cover plate (2) is movably mounted on the top of the collecting tank (1). A power component (3) is fixedly mounted on the top of the cover plate (2). There are three heat exchange components (12) in total. A distribution component (10) is arranged between the three heat exchange components (12). The bottom end of the power component (3) is connected to the outer side surfaces of the three heat exchange components (12). The bottom end of the distribution component (10) is fixedly connected to a power tank (7). The middle part of the power tank (7) is movably connected to a main shaft (8). The outer side surface of the main shaft (8) is fixedly sleeved with an impeller (9) located inside the power tank (7). The bottom end of the power tank (7) is fixedly connected to a No. 2 three-way valve (6). A No. 1 three-way valve (4) is mounted on the bottom end of the inner cavity of the collecting tank (1). The bottom end of the No. 1 three-way valve (4) passes through the bottom end of the collecting tank (1). The front and rear ends of the through valve (4) are both fixedly connected with an extension pipe (5), the other end of the extension pipe (5) is connected with the left and right ends of the No. 2 three-way valve (6), the bottom end of the power tank (7) is provided with a linkage assembly (11), the bottom end of the linkage assembly (11) is connected with the bottom ends of three heat exchange assemblies (12), the top end of the linkage assembly (11) is connected with the left and right sides of the main shaft (8), one side of the top end of the heat exchange assembly (12) is provided with a cold medium storage tank (13), the other side of the top end of the heat exchange assembly (12) is provided with a hot medium storage tank (14), the top end of the hot medium storage tank (14) is fixedly connected with a hot medium discharge pipe (15), the output end of the hot medium discharge pipe (15) passes through the top end of the collection tank (1) and is located on the outer side of the collection tank (1), and the three cold medium storage tanks (13) respectively store low-temperature heat exchange medium, medium-temperature heat exchange medium, and high-temperature heat exchange medium.

2. The industrial waste heat grading storage device according to claim 1 is characterized in that: The heat exchange component (12) comprises a heat exchange tube (121), the interior of the heat exchange tube (121) is movably sleeved with a piston plate (122), the bottom end of the piston plate (122) is fixedly connected with a piston rod (123), and the bottom end of the piston rod (123) passes through the bottom end of the heat exchange tube (121) and is connected to the linkage component (11).

3. The industrial waste heat grading storage device according to claim 3 is characterized in that: The left side of the top end of the heat exchange tube (121) is fixedly connected to a drain valve (125), and the right side of the top end of the heat exchange tube (121) is fixedly connected to a liquid inlet valve (124). The top end of the liquid inlet valve (124) is connected to the bottom end of the cold medium storage tank (13), and the top end of the liquid drain valve (125) is connected to the bottom end of the hot medium storage tank (14). Both the liquid inlet valve (124) and the liquid drain valve (125) are one-way valves, and the valve directions are respectively inwardly conducting and outwardly blocking, and outwardly conducting and inwardly blocking.

4. The industrial waste heat grading storage device according to claim 1 is characterized in that: The low-temperature heat exchange medium, the medium-temperature heat exchange medium and the high-temperature heat exchange medium are respectively lithium bromide solution, ethylene glycol aqueous solution and molten salt.

5. The industrial waste heat grading storage device according to claim 3 is characterized in that: The distribution assembly (10) comprises a distribution box (101), the bottom end of the distribution box (101) is connected to the top end of the power tank (7), the distribution box (101) rotates relative to the power tank (7), and the outer side surface of the distribution box (101) is fixedly connected to a diffusion cover (102) at an equal angle, the number of the diffusion covers (102) is the same as the number of the heat exchange tubes (121), and the diffusion covers (102) are located on one side of the heat exchange tubes (121).

6. The industrial waste heat grading storage device according to claim 3 is characterized in that: The power assembly (3) comprises a mounting frame (301), the bottom end of the mounting frame (301) is connected to the top end of the cover plate (2), a main motor (302) is fixedly mounted on the bottom end of the mounting frame (301), a power shaft (303) is fixedly mounted on the output end of the main motor (302), a transmission wheel (304) is fixedly connected to the bottom end of the power shaft (303), an outer side surface of the transmission wheel (304) is connected to an outer side surface of the heat exchange tube (121) near the top end, and three heat exchange tubes (121) are mounted at equal angles on the outer side surface of the transmission wheel (304).

7. The industrial waste heat grading storage device according to claim 3 is characterized in that: The linkage assembly (11) comprises a linkage frame (111), the top of the linkage frame (111) being connected to the bottom end of a piston rod (123) at a position close to the outer side surface, three piston rods (123) being installed at the top of the linkage frame (111) at equal angles, and a mounting shaft (112) being fixedly connected to the middle of the linkage frame (111).

8. The industrial waste heat grading storage device according to claim 7 is characterized in that: The left and right ends of the outer side surface of the installation shaft (112) are both movably sleeved with a first connecting rod (113), and one end of the first connecting rod (113) away from the installation shaft (112) is movably connected to a second connecting rod (114).

9. The industrial waste heat grading storage device according to claim 8, characterized in that: The two second connecting rods (114) are both located on the outer side of the power tank (7), and the two second connecting rods (114) are respectively fixedly connected to the left and right sides of the main shaft (8).

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