Waste heat recovery device

Abstract

The utility model relates to the technical field of recovery devices, and discloses a waste heat recovery device which comprises a shell, a motor is fixedly connected to the front side of the shell, an output shaft is fixedly connected to the output end of the motor, and a transmission assembly used for transmitting power is fixedly connected to the outer portion of the output shaft. A containing shell is fixedly connected to the exterior of the transmission assembly, a cavity is formed in the containing shell, a plurality of first springs are arranged in the cavity, a limiting plate is slidably connected to the interior of the cavity, a mounting plate is fixedly connected to the exterior of the limiting plate, and a plurality of steel brushes are fixedly connected to the exterior of the mounting plate. According to the device, the motor drives the output shaft to rotate, the rotating disc outside the output shaft drives the fixing block and the containing shell to move through a transmission assembly composed of the first connecting plate, the connecting shaft and the second connecting plate, and the first spring, the limiting plate, the mounting plate and other structures in the containing shell drive the steel brush to move outside the heat conduction pipe.

Description

Technical Field

[0001] This utility model relates to the field of recycling device technology, and in particular to a waste heat recovery device. Background Technology

[0002] In industrial production sectors such as power generation, chemical smelting, and building materials processing, waste heat recovery devices are key equipment for achieving efficient energy utilization. As the core component of waste heat exchange, heat pipes are prone to scale buildup due to the adhesion of dust, condensate, and other impurities in high-temperature gases, leading to decreased heat exchange efficiency. For example, in waste heat recovery devices for coal-fired boilers, fly ash scale buildup on the surface of the heat pipes can reduce heat exchange efficiency by 15%-30%, sometimes requiring shutdown for manual cleaning and disrupting production continuity. Therefore, achieving efficient and automatic cleaning of impurities on the surface of heat pipes has become a significant technical bottleneck in improving waste heat recovery efficiency.

[0003] Traditional waste heat recovery devices rely on manual periodic disassembly and wiping or fixed spray rinsing structures for cleaning heat pipes. Manual cleaning requires interrupting equipment operation, which is time-consuming, labor-intensive, and poses safety risks due to working at heights. Frequent disassembly can also lead to leaks at the heat pipe interfaces. While fixed spray structures can achieve continuous cleaning, the water flow impact force is fixed, which has limited effectiveness in removing stubborn deposits (such as sintering dust) and may increase system energy consumption and water pollution treatment costs.

[0004] Therefore, a waste heat recovery device is proposed to address the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a waste heat recovery device, which aims to improve the limited cleaning effect of existing technologies on stubborn deposits (such as sintering dust).

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A waste heat recovery device includes a housing, a motor fixedly connected to the front side of the housing, an output shaft fixedly connected to the output end of the motor, a transmission assembly for transmitting power fixedly connected to the outside of the output shaft, a receiving shell fixedly connected to the outside of the transmission assembly, a cavity opened inside the receiving shell, a plurality of springs disposed inside the cavity, a limit plate slidably connected inside the cavity, a mounting plate fixedly connected to the outside of the limit plate, a plurality of steel brushes fixedly connected to the outside of the mounting plate, a limit rod fixedly connected to the top and bottom sides of the housing, and a heat-conducting pipe disposed inside the housing.

[0008] As a further description of the above technical solution:

[0009] The transmission assembly includes a rotating disk and a fixed block. The center of the rotating disk is fixedly connected to the outside of the output shaft. A connecting plate one is fixedly connected to the outside of the rotating disk. A connecting shaft is rotatably connected to the other side of the connecting plate one. A connecting plate two is rotatably connected to the outside of the connecting shaft. The other side of the connecting plate two is rotatably connected to the outside of the fixed block. The outside of the fixed block is fixedly connected to the outside of the receiving shell.

[0010] As a further description of the above technical solution:

[0011] An air outlet pipe is fixedly connected to the right side of the housing, an air inlet pipe is fixedly connected to the left side of the housing, a fixing plate is fixedly connected inside the air inlet pipe, and multiple limiting rods are fixedly connected to the left side of the cavity. A spring is sleeved on the outside of each of the multiple limiting rods, and a filter plate is slidably connected to the outside of the multiple limiting rods.

[0012] As a further description of the above technical solution:

[0013] One end of the spring is fixedly connected to the inner wall of the cavity, and the other end of the spring is fixedly connected to the outside of the limiting plate.

[0014] As a further description of the above technical solution:

[0015] The outside of the steel brush is in contact with the outside of the heat-conducting pipe, and the top and bottom of the receiving shell are slidably connected to the outside of the two limiting rods.

[0016] As a further description of the above technical solution:

[0017] One end of the second spring is fixedly connected to the outside of the fixed plate, and the other end of the second spring is fixedly connected to the outside of the filter plate.

[0018] As a further description of the above technical solution:

[0019] The outer side of the filter plate is in contact with the inner wall of the air inlet pipe, and the adjacent sides of the air inlet pipe and the air outlet pipe are in contact with the left and right sides of the heat-conducting pipe, respectively.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the output shaft is driven to rotate by a motor. The rotating disk outside the output shaft drives the fixed block and the housing to move through the transmission assembly composed of connecting plate one, connecting shaft and connecting plate two. The spring one, limiting plate, mounting plate and other structures inside the housing drive the steel brush to move outside the heat pipe, which realizes the beneficial effect of cleaning the surface of the heat pipe, ensures the heat exchange efficiency of the heat pipe, and ensures the efficient operation of the waste heat recovery device.

[0022] 2. In this utility model, a limiting rod two is set in the fixed plate inside the air inlet pipe. The limiting rod two is fitted with a spring two and slidably connected to the filter plate. When the gas enters, the filter plate remains stable under the action of the spring two, which achieves the beneficial effect of intercepting and filtering impurities in the gas entering the pipe, ensuring that the gas entering the heat pipe is clean, improving the quality of waste heat exchange, and thus improving the efficiency of waste heat recovery and utilization. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a waste heat recovery device proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the heat pipe of a waste heat recovery device proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of a waste heat recovery device proposed in this utility model;

[0026] Figure 4 for Figure 2 Enlarged view of point A.

[0027] Legend:

[0028] 1. Housing; 2. Motor; 3. Output shaft; 4. Rotating disk; 5. Connecting plate one; 6. Connecting shaft; 7. Connecting plate two; 8. Fixing block; 9. Housing shell; 10. Cavity; 11. Spring one; 12. Limiting plate; 13. Mounting plate; 14. Steel brush; 15. Limiting rod one; 16. Heat conduction pipe; 17. Air inlet pipe; 18. Fixing plate; 19. Limiting rod two; 20. Spring two; 21. Filter plate; 22. Air outlet pipe. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1 to 3The present invention provides an embodiment of a waste heat recovery device, comprising a housing 1 as the main structure of the device, providing installation and housing space for other components, serving as the basic carrier of the entire waste heat recovery device, ensuring that the components are arranged in an orderly manner and function. A motor 2 is fixedly connected to the front of the housing 1, which outputs power after starting, providing initial power support for the operation of the device and serving as the starting point for the device's operation. An output shaft 3 is fixedly connected to the output end of the motor 2, transmitting the power generated by the motor 2, which is a key link in the power transmission path. A transmission component for transmitting power is fixedly connected to the outside of the output shaft 3.

[0031] The transmission assembly has an externally fixed housing 9 as a carrier for mounting components such as spring 11 and limiting plate 12. Its movement drives internal components and steel brush 14 to clean the heat conduction pipe 16. The transmission assembly includes a rotating disk 4 and a fixed block 8. The rotating disk 4 is fixed to the outside of the output shaft 3 and rotates with it, participating in power transmission and conversion. It converts the rotation of the output shaft 3 into the motion power of subsequent components. The middle part is fixedly connected to the outside of the output shaft 3. The rotating disk 4 is externally fixedly connected to a connecting plate 5, which connects the rotating disk 4 and the connecting shaft 6, transmitting the power of the rotating disk 4 and ensuring the continuity of transmission. On the other side of the connecting plate 5, a connecting shaft 6 is rotatably connected to the connecting plate 5 and the connecting plate 7, serving as a transmission hub to coordinate movement and smoothly transmit power to the connecting plate 7. The connecting shaft 6 is rotatably connected to the connecting plate 7, which connects the connecting shaft 6 and the fixed block 8, transmitting power to the fixed block 8 and acting as a bridge in the transmission. The other side of the connecting plate 7 is rotatably connected to the outside of the fixed block 8. The fixed block 8 is externally connected to the housing 9, receiving power and transmitting it to generate movement. It is the key connection point for transmitting power to the housing 9 and is externally fixedly connected to the outside of the housing 9.

[0032] The housing 9 has an internal cavity 10 with springs 11 slidably connected to a limiting plate 12, providing installation space and movement guidance for both. Multiple springs 11 are installed inside the cavity 10, one end of which is fixed to the inner wall of the cavity 10, and the other end is fixed to the outside of the limiting plate 12. When the limiting plate 12 slides, it buffers and resets, providing pressure for the steel brush 14 to contact the heat pipe 16. The limiting plate 12, slidably connected inside the cavity 10, slides within the cavity 10, driving the steel brush 14 to move via the mounting plate 13. Its sliding is constrained and guided by the springs 11, ensuring stable and orderly movement of the steel brush 14. One end of each spring 11 is fixedly connected to the inner wall of the cavity 10, and the other end is fixedly connected to the outside of the limiting plate 12. The mounting plate 13 is fixedly connected to the outside of the limiting plate 12, securing the steel brush 14. The motion is transmitted to the steel brush 14, causing it to move outside the heat pipe 16. Multiple steel brushes 14 are fixedly connected to the outside of the mounting plate 13, contacting the outside of the heat pipe 16 to clean impurities on its surface, ensuring heat exchange efficiency and ensuring efficient waste heat recovery. Limiting rods 15 are fixedly connected to the top and bottom sides of the inside of the shell 1, limiting and guiding the movement of the housing 9, ensuring that it moves along a specified trajectory, improving stability and accuracy. The top and bottom of the housing 9 are slidably connected to the outside of the two limiting rods 15 respectively. The heat pipe 16 is set inside the shell 1 and is the core component for waste heat exchange. The filtered gas undergoes waste heat exchange in it to realize waste heat recovery and utilization. Its heat exchange efficiency directly affects the effect of the device. The outside of the steel brush 14 is in contact with the outside of the heat pipe 16.

[0033] Reference Figure 2 and Figure 4 An outlet pipe 22 is fixedly connected to the right side of the housing 1, contacting the right side of the heat pipe 16, to discharge the gas that has completed waste heat exchange, ensuring continuous gas flow within the device. An inlet pipe 17 is fixedly connected to the left side of the housing 1, contacting the left side of the heat pipe 16, to introduce gas carrying waste heat, ensuring that the waste heat gas can smoothly enter the heat pipe 16 for heat exchange. The adjacent sides of the inlet pipe 17 and the outlet pipe 22 contact the left and right sides of the heat pipe 16, respectively. A fixing plate 18 is fixedly connected inside the inlet pipe 17. The limiting rod 19 is fixedly supported to ensure its stable installation in the air inlet pipe 17. Multiple limiting rods 19 are fixedly connected to the left side of the cavity 10, and springs 20 are slidably connected to the filter plate 21. They limit and guide the movement of the filter plate 21 and cooperate with the springs 20 to ensure the stability of the filter plate 21. The springs 20 are all sleeved on the outside of the multiple limiting rods 19. One end of the spring is fixed to the outside of the fixed plate 18, and the other end is fixed to the outside of the filter plate 21. When the gas enters, the filter plate 21 is buffered and stabilized so that it can effectively intercept impurities and maintain its stable position when the gas pressure changes.

[0034] Multiple limiting rods 19 are externally slidably connected to a filter plate 21 that contacts the inner wall of the air inlet pipe 17. When the gas enters, the filter plate intercepts and filters impurities, ensuring that the gas entering the heat pipe 16 is clean and improving the quality of waste heat exchange. It is a key component of gas filtration. One end of the spring 20 is fixedly connected to the outside of the fixing plate 18, and the other end of the spring 20 is fixedly connected to the outside of the filter plate 21. The outside of the filter plate 21 contacts the inner wall of the air inlet pipe 17.

[0035] Working principle: First, motor 2 is started, and the output end of motor 2 drives the output shaft 3 to start rotating. The rotating disk 4, which is fixedly connected to the outside of the output shaft 3, rotates accordingly. The rotating disk 4 transmits power to the fixed block 8 through the transmission assembly composed of connecting plate 5, connecting shaft 6, and connecting plate 7, thereby causing the receiving shell 9, which is fixedly connected to the outside of the fixed block 8, to move. During the movement, the top and bottom of the receiving shell 9 slide along the limiting rods 15, which are fixedly connected to the top and bottom sides of the shell 1, respectively, to ensure the stability of the movement.

[0036] The housing 9 has an internal cavity 10 containing multiple springs 11. One end of each spring 11 is fixedly connected to the inner wall of the cavity 10, and the other end is fixedly connected to the outside of a limiting plate 12. A mounting plate 13 is fixedly connected to the outside of the limiting plate 12, and multiple steel brushes 14 fixedly connected to the mounting plate 13 are in contact with the outside of the heat pipe 16. When the housing 9 moves, the internal structure drives the steel brushes 14 to move outside the heat pipe 16, cleaning the surface of the heat pipe 16 and ensuring the heat exchange efficiency of the heat pipe 16.

[0037] Meanwhile, gas carrying residual heat enters the device through the inlet pipe 17 fixedly connected to the left side of the housing 1. Multiple limiting rods 19 are installed on a fixed plate 18 fixedly connected inside the inlet pipe 17. Springs 20 are sleeved on the outside of the limiting rods 19, and they are slidably connected to the filter plate 21. When the gas enters, it first passes through the filter plate 21, intercepting impurities. The springs 20 ensure the filter plate 21 remains stable during filtration. The outside of the filter plate 21 contacts the inner wall of the inlet pipe 17, further ensuring the filtration effect. The filtered gas then enters the heat-conducting pipe 16 inside the housing 1, where residual heat is exchanged, achieving waste heat recovery and utilization. Finally, the gas that has completed waste heat exchange is discharged from the device through the outlet pipe 22 fixedly connected to the right side of the housing 1. The entire workflow is cyclical, ensuring the continuous and stable operation of the waste heat recovery device and achieving efficient recovery and treatment of waste heat.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat recovery device comprising a housing (1), characterized in that: A motor (2) is fixedly connected to the front side of the housing (1). An output shaft (3) is fixedly connected to the output end of the motor (2). A transmission assembly for transmitting power is fixedly connected to the outside of the output shaft (3). A receiving shell (9) is fixedly connected to the outside of the transmission assembly. A cavity (10) is opened inside the receiving shell (9). A plurality of springs (11) are arranged inside the cavity (10). A limit plate (12) is slidably connected inside the cavity (10). An mounting plate (13) is fixedly connected to the outside of the limit plate (12). A plurality of steel brushes (14) are fixedly connected to the outside of the mounting plate (13). A limit rod (15) is fixedly connected to the top and bottom sides inside the housing (1). A heat-conducting pipe (16) is arranged inside the housing (1).

2. The waste heat recovery device according to claim 1, characterized in that: The transmission assembly includes a rotating disk (4) and a fixed block (8). The middle part of the rotating disk (4) is fixedly connected to the outside of the output shaft (3). A connecting plate (5) is fixedly connected to the outside of the rotating disk (4). A connecting shaft (6) is rotatably connected to the other side of the connecting plate (5). A connecting plate (7) is rotatably connected to the outside of the connecting shaft (6). The other side of the connecting plate (7) is rotatably connected to the outside of the fixed block (8). The outside of the fixed block (8) is fixedly connected to the outside of the housing (9).

3. The waste heat recovery device according to claim 1, characterized in that: An air outlet pipe (22) is fixedly connected to the right side of the housing (1), an air inlet pipe (17) is fixedly connected to the left side of the housing (1), a fixing plate (18) is fixedly connected inside the air inlet pipe (17), a plurality of limiting rods (19) are fixedly connected to the left side of the cavity (10), a spring (20) is sleeved on the outside of each of the plurality of limiting rods (19), and a filter plate (21) is slidably connected to the outside of the plurality of limiting rods (19).

4. The waste heat recovery device according to claim 1, characterized in that: One end of the spring (11) is fixedly connected to the inner wall of the cavity (10), and the other end of the spring (11) is fixedly connected to the outside of the limiting plate (12).

5. The waste heat recovery device according to claim 1, characterized in that: The outside of the steel brush (14) is in contact with the outside of the heat-conducting pipe (16), and the top and bottom of the housing (9) are slidably connected to the outside of the two limiting rods (15).

6. A waste heat recovery device according to claim 3, characterized in that: One end of the second spring (20) is fixedly connected to the outside of the fixed plate (18), and the other end of the second spring (20) is fixedly connected to the outside of the filter plate (21).

7. A waste heat recovery device according to claim 3, characterized in that: The outer side of the filter plate (21) is in contact with the inner wall of the air inlet pipe (17), and the adjacent sides of the air inlet pipe (17) and the air outlet pipe (22) are in contact with the left and right sides of the heat-conducting pipe (16), respectively.

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