Low-temperature waste heat recovery power generation device based on organic Rankine cycle
By designing the rack and rack structure and spring buffering system in the low-temperature waste heat recovery and power generation device, the problem of insufficient heat exchange caused by excessive flow is solved, and efficient heat exchange and equipment life are achieved.
Patent Information
- Application Number
- CN202422367129.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-27
AI Technical Summary
When the flow rate of the traditional low-temperature waste heat recovery and generating device based on the organic Rankine cycle is too large, the organic working fluid stays in the evaporator for insufficient heat exchange and reduces the heat exchange efficiency.
By designing a structure including gears, ring gears, rack plates and sliding rods, the flow of wastewater into the evaporator is controlled, and the impact force is buffered by springs and dampers, reducing mechanical damage and extending the life of the equipment.
It realizes sufficient heat exchange under flow control, improves the heat exchange efficiency of the evaporator, reduces mechanical damage to the equipment, and extends the service life.
Smart Images
Figure CN223122041U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of low-temperature waste heat recovery power generation, in particular to a low-temperature waste heat recovery power generation device based on an organic Rankine cycle. Background Technique
[0002] In many industrial production processes, a large amount of wastewater will be generated, and this wastewater usually has a certain temperature and contains considerable thermal energy. For example, the production wastewater in industries such as chemical industry, pharmaceutical, paper-making, and food processing often has a relatively high temperature when discharged. Directly discharging this wastewater will not only cause waste of energy but also may cause thermal pollution to the environment. Through the ORC low-temperature waste heat recovery power generation device, the thermal energy in the wastewater can be effectively converted into electric energy, realizing the recycling of energy and improving the overall energy utilization efficiency.
[0003] However, for the traditional low-temperature waste heat recovery power generation device based on the organic Rankine cycle, when the flow rate is too large, the organic working fluid stays in the evaporator for insufficient time and is carried out of the evaporator before fully absorbing the heat in the wastewater, resulting in insufficient heat exchange and reducing the heat exchange efficiency of the evaporator. Summary of the Utility Model
[0004] To make up for the above deficiencies, the utility model provides a low-temperature waste heat recovery power generation device based on an organic Rankine cycle, aiming to improve the problem that when the flow rate is too large, the organic working fluid stays in the evaporator for insufficient time and is carried out of the evaporator before fully absorbing the heat in the wastewater, resulting in insufficient heat exchange and reducing the heat exchange efficiency of the evaporator.
[0005] To achieve the above object, the utility model provides the following technical solution: A low-temperature waste heat recovery power generation device based on an organic Rankine cycle, including an evaporator body, a motor is installed inside the evaporator body, the output end of the motor is fixedly connected with a gear, the outer wall of the gear is rotatably connected with a bottom plate, the outer wall of the gear is meshed with a toothed ring, the upper surface of the toothed ring is fixedly connected with a sliding rod, the outer wall of the toothed ring is meshed with a rack plate, a first rotating column is rotatably connected inside the rack plate, the outer wall of the first rotating column is fixedly connected inside the bottom plate, the outer wall of the sliding rod is slidably connected with a top plate, a chute is opened inside the top plate, the outer wall of the sliding rod is slidably connected with the inner wall of the chute, a first limiting column is installed inside the bottom plate, the outer wall of the first limiting column is slidably connected inside the top plate, one end of the first limiting column is fixedly connected inside the evaporator body, and a connecting component is arranged on the outer wall of the top plate, and the connecting component has an effect of connecting the water pipe.
[0006] Preferably, the connecting component includes a first connecting ring, the outer wall of the first connecting ring is fixedly connected to the outer wall of the top plate, the outer wall of the first connecting ring is fixedly connected with a second connecting ring, the outer wall of the second connecting ring is fixedly connected to the outer wall of the top plate, the outer wall of the first connecting ring is in fitting connection with a pipeline, and the outer wall of the pipeline is slidably connected to the inner wall of the second connecting ring.
[0007] Preferably, a cross bar is fixedly connected to the lower surface of the evaporator body, and a fixing block is fixedly connected to the outer wall of the cross bar.
[0008] Preferably, a second rotating column is rotatably connected to the inside of the fixing block, and a connecting rod is fixedly connected to the outer wall of the second rotating column.
[0009] Preferably, a limiting plate is fixedly connected to the outer wall of the connecting rod, and a hollow column is fixedly connected to the lower surface of the limiting plate.
[0010] Preferably, a fixing column is slidably connected to the inner wall of the hollow column, and a first spring is slidably connected to the outer wall of the fixing column.
[0011] Preferably, both ends of the first spring are fixedly connected to the outer wall of the hollow column, a supporting plate is fixedly connected to the outer wall of the fixing column, and a load-bearing plate is fixedly connected to the lower surface of the supporting plate.
[0012] Preferably, a damper is arranged on the upper surface of the load-bearing plate, and the outer wall of the damper is fixedly connected to the lower surface of the cross bar.
[0013] The utility model has the following beneficial effects:
[0014] 1. In the utility model, when the motor is started, the motor drives the gear to rotate, the rotation of the gear drives the gear ring to rotate, the rotation of the gear ring drives the rack plate to rotate, and when the rack plate rotates, the channel opening will be slowly closed. When the sliding rod rotates to the top end of one side of the chute, it is completely closed or completely opened at this time, so as to control the flow rate of the waste water entering the evaporator body, make the heat exchange sufficient, and improve the heat exchange efficiency of the evaporator body.
[0015] 2. In the utility model, when the waste water enters the inside of the evaporator body, an impact will be generated. At this time, the fixing block will be pressed downwards, the fixing block drives the second rotating column to move, thereby driving the connecting rod to rotate. The rotation of the connecting rod pushes the limiting plate and the hollow column to move, thereby compressing the first spring. The first spring buffers the force generated in the middle part of the evaporator body, and the second spring buffers the force generated in all directions, so as to reduce the mechanical damage to parts such as the evaporator and pipeline connection, and extend the service life of the evaporator. Description of the Drawings
[0016] Figure 1Stereogram of the low-temperature waste heat recovery power generation device based on organic Rankine cycle proposed by the present utility model;
[0017] Figure 2 Profile view of the evaporator body of the low-temperature waste heat recovery power generation device based on organic Rankine cycle proposed by the present utility model;
[0018] Figure 3 Schematic diagram of the gear of the low-temperature waste heat recovery power generation device based on organic Rankine cycle proposed by the present utility model;
[0019] Figure 4 Schematic diagram of the first spring of the low-temperature waste heat recovery power generation device based on organic Rankine cycle proposed by the present utility model.
[0020] Legend description:
[0021] 1. Evaporator body; 2. Motor; 3. Gear; 4. Base plate; 5. Ring gear; 6. Sliding rod; 7. Rack plate; 8. First rotating column; 9. Top plate; 10. Chute; 11. First limiting column; 12. First connecting ring; 13. Second connecting ring; 14. Pipeline; 15. Cross bar; 16. Fixed block; 17. Second rotating column; 18. Connecting rod; 19. Limiting plate; 20. Hollow column; 21. Fixed column; 22. First spring; 23. Support plate; 24. Load-bearing plate; 25. Damper. Detailed implementation manners
[0022] Next, in combination with the accompanying drawings of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] Refer to Figures 1-3, an embodiment provided by the present utility model: a low-temperature waste heat recovery power generation device based on an organic Rankine cycle, including an evaporator body 1. A motor 2 is installed inside the evaporator body 1. The output end of the motor 2 is fixedly connected to a gear 3. The outer wall of the gear 3 is rotatably connected to a bottom plate 4. The outer wall of the gear 3 is meshed with a toothed ring 5. The upper surface of the toothed ring 5 is fixedly connected to a sliding rod 6. The outer wall of the toothed ring 5 is meshed with a rack plate 7. The inside of the rack plate 7 is rotatably connected to a first rotating column 8. The outer wall of the first rotating column 8 is fixedly connected inside the bottom plate 4. The outer wall of the sliding rod 6 is slidably connected to the inner wall of a top plate 9. A chute 10 is formed inside the top plate 9. The outer wall of the sliding rod 6 is slidably connected to the inner wall of the chute 10. A first limiting column 11 is installed inside the bottom plate 4. The outer wall of the first limiting column 11 is slidably connected inside the top plate 9. One end of the first limiting column 11 is fixedly connected inside the evaporator body 1. A connecting component is arranged on the outer wall of the top plate 9, and the connecting component has an effect of connecting the water pipes;
[0024] Specifically, start the motor 2 to drive the gear 3 to rotate, thereby driving the toothed ring 5 and the sliding rod 6 to rotate. While the toothed ring 5 rotates, it drives the rack plate 7 to rotate. When the sliding rod 6 moves to one side top end of the chute 10, it is in a completely open or completely closed state at this time, achieving the effect of controlling the flow rate of the waste water entering the evaporator body 1, making the heat exchange sufficient, and improving the heat exchange efficiency of the evaporator body 1.
[0025] Referring to Figure 1 and Figure 2 , the connecting component includes a first connecting ring 12. The outer wall of the first connecting ring 12 is fixedly connected to the outer wall of the top plate 9. The outer wall of the first connecting ring 12 is fixedly connected to a second connecting ring 13. The outer wall of the second connecting ring 13 is fixedly connected to the outer wall of the top plate 9. The outer wall of the first connecting ring 12 is fitted with a pipeline 14. The outer wall of the pipeline 14 is slidably connected to the inner wall of the second connecting ring 13;
[0026] Specifically, first fit the pipeline 14 on the outer wall of the first connecting ring 12, and make the outer wall of the pipeline 14 also fit on the inner wall of the second connecting ring 13, achieving the effect of accurately positioning the docking position of the pipeline 14.
[0027] Referring to Figure 1 、 Figure 2 and Figure 4, a cross bar 15 is fixedly connected to the lower surface of the evaporator body 1, and a fixing block 16 is fixedly connected to the outer wall of the cross bar 15; a second rotating column 17 is rotatably connected inside the fixing block 16, and a connecting rod 18 is fixedly connected to the outer wall of the second rotating column 17; a limiting plate 19 is fixedly connected to the outer wall of the connecting rod 18, and a hollow column 20 is fixedly connected to the lower surface of the limiting plate 19; a fixing column 21 is slidably connected to the inner wall of the hollow column 20, and a first spring 22 is slidably connected to the outer wall of the fixing column 21; both ends of the first spring 22 are fixedly connected to the outer wall of the hollow column 20, a support plate 23 is fixedly connected to the outer wall of the fixing column 21, and a load-bearing plate 24 is fixedly connected to the lower surface of the support plate 23; a damper 25 is arranged on the upper surface of the load-bearing plate 24, and the outer wall of the damper 25 is fixedly connected to the lower surface of the cross bar 15;
[0028] Specifically, when the wastewater enters the inside of the evaporator body 1, an impact force will be generated. At this time, the evaporator body 1 will drive the cross bar 15 and the fixing block 16 to move. The movement of the fixing block 16 drives the movement of the second rotating column 17, thereby driving the rotation of the connecting rod 18. The rotation of the connecting rod 18 pushes the limiting plate 19 and the hollow column 20 to move. When the two sides of the hollow column 20 move inward, the first spring 22 will be compressed for buffering. The first spring 22 buffers the impact force at the middle position, and the second spring 25 above the load-bearing plate 24 buffers the impact force generated around the evaporator body 1, achieving the effect of reducing mechanical damage to parts such as the evaporator body 1 and the connection of the pipeline 14, and extending the service life of the evaporator body 1.
[0029] Working principle: When the device needs to be used, first attach the pipe 14 to the outer wall of the first connection ring 12, so that the outer wall of the pipe 14 also fits against the inner wall of the second connection ring 13. Then, convey the wastewater into the interior of the evaporator body 1. According to the heat exchange efficiency, start the motor 2. The motor 2 drives the gear 3 to rotate on the upper surface of the bottom plate 4. The rotation of the gear 3 drives the ring gear 5 to rotate. The rotation of the ring gear 5 drives the sliding rod 6 to rotate within the inner wall of the top plate 9. While the ring gear 5 rotates, it drives the rack plate 7 to rotate through the first rotating column 8. When the sliding rod 6 moves to one side top end of the chute 10, it is in a fully open or fully closed state at this time. The first limit post 11 fixes the bottom plate 4 and the top plate 9, achieving the effect of being able to control the flow rate of the wastewater entering the evaporator body 1, making the heat exchange sufficient, and improving the heat exchange efficiency of the evaporator body 1. When the wastewater enters the interior of the evaporator body 1, an impact force will be generated. At this time, the evaporator body 1 will drive the cross bar 15 to move downward. The movement of the cross bar 15 drives the fixed block 16 to move. The movement of the fixed block 16 drives the second rotating column 17 to move. The movement of the second rotating column 17 drives the connecting rod 18 to rotate. The rotation of the connecting rod 18 pushes the limiting plate 19 to move. The movement of the limiting plate 19 drives the hollow column 20 to move. When the two hollow columns 20 move inward, they will compress the first spring 22 on the outer wall of the fixed column 21 supported by the support plate 23 for buffering. The first spring 22 buffers the impact force at the middle position. The damper 25 above the load-bearing plate 24 buffers the impact force generated around the evaporator body 1, achieving the effect of reducing mechanical damage to parts such as the evaporator body 1 and the connection of the pipe 14, and extending the service life of the evaporator body 1. This device can not only achieve the effect of being able to control the flow rate of the wastewater entering the evaporator body 1, making the heat exchange sufficient, and improving the heat exchange efficiency of the evaporator body 1, but also achieve the effect of reducing mechanical damage to parts such as the evaporator body 1 and the connection of the pipe 14, and extending the service life of the evaporator body 1.
[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded 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 low-temperature waste heat recovery power generation device based on an organic Rankine cycle, comprising an evaporator body (1), characterized in that: Inside the evaporator body (1), a motor (2) is installed. The output end of the motor (2) is fixedly connected to a gear (3). The outer wall of the gear (3) is rotatably connected to a bottom plate (4). The outer wall of the gear (3) is meshed with a toothed ring (5). The upper surface of the toothed ring (5) is fixedly connected to a sliding rod (6). The outer wall of the toothed ring (5) is meshed with a rack plate (7). Inside the rack plate (7), a first rotating column (8) is rotatably connected. The outer wall of the first rotating column (8) is fixedly connected inside the bottom plate (4). The outer wall of the sliding rod (6) is slidably connected to a top plate (9). Inside the top plate (9), a chute (10) is formed. The outer wall of the sliding rod (6) is slidably connected to the inner wall of the chute (10). Inside the bottom plate (4), a first limiting column (11) is installed. The outer wall of the first limiting column (11) is slidably connected inside the top plate (9). One end of the first limiting column (11) is fixedly connected inside the evaporator body (1). A connecting component is arranged on the outer wall of the top plate (9), and the connecting component has an effect of connecting a water pipe.
2. The low-temperature waste heat recovery power generation device based on an organic Rankine cycle according to claim 1, wherein: The connecting component includes a first connecting ring (12). The outer wall of the first connecting ring (12) is fixedly connected to the outer wall of the top plate (9). The outer wall of the first connecting ring (12) is fixedly connected to a second connecting ring (13). The outer wall of the second connecting ring (13) is fixedly connected to the outer wall of the top plate (9). The outer wall of the first connecting ring (12) is in fitting connection with a pipe (14). The outer wall of the pipe (14) is slidably connected to the inner wall of the second connecting ring (13).
3. The low-temperature waste heat recovery power generation device based on an organic Rankine cycle according to claim 2, wherein: The lower surface of the evaporator body (1) is fixedly connected to a cross bar (15). The outer wall of the cross bar (15) is fixedly connected to a fixed block (16).
4. The low-temperature waste heat recovery power generation device based on an organic Rankine cycle according to claim 3, wherein: Inside the fixed block (16), a second rotating column (17) is rotatably connected. The outer wall of the second rotating column (17) is fixedly connected to a connecting rod (18).
5. The low-temperature waste heat recovery power generation device based on an organic Rankine cycle according to claim 4, wherein: The outer wall of the connecting rod (18) is fixedly connected to a limiting plate (19). The lower surface of the limiting plate (19) is fixedly connected to a hollow column (20).
6. The low-temperature waste heat recovery power generation device based on an organic Rankine cycle according to claim 5, characterized in that: Inside the inner wall of the hollow column (20), a fixed column (21) is slidably connected. The outer wall of the fixed column (21) is slidably connected to a first spring (22).
7. The low-temperature waste heat recovery power generation device based on an organic Rankine cycle according to claim 6, wherein: Both ends of the first spring (22) are fixedly connected to the outer wall of the hollow column (20). The outer wall of the fixed column (21) is fixedly connected to a support plate (23). The lower surface of the support plate (23) is fixedly connected to a load-bearing plate (24).
8. The low-temperature waste heat recovery power generation device based on an organic Rankine cycle according to claim 7, characterized in that: A damper (25) is arranged on the upper surface of the load-bearing plate (24). The outer wall of the damper (25) is fixedly connected to the lower surface of the cross bar (15).