Waste heat recovery device of energy-saving generator for chemical production

Abstract

The invention discloses a waste heat recovery device of an energy-saving generator for chemical production, and belongs to the field of waste heat recovery. The three-way pipe is fixedly connected to one end of the air inlet pipe; the heat exchange tank is fixedly connected to the two ends of the three-way pipe; a heat conduction pipe is arranged in the heat exchange tank, and a fixing rod is fixedly connected to the interior of the heat exchange tank. Through the synergistic effect of the fixed fins and the movable fins and the rotating mechanism of the rotating plate and the movable fins, maximum utilization of hot air in the heat exchange tank is ensured, heat loss is avoided, through the design of the rotating cylinder, the connecting rod A and the connecting rod B, when the air volume changes, the movable fins can automatically adjust the gaps between the movable fins and the fixed fins, and the heat exchange efficiency is improved. Therefore, different air volumes are adapted, the heat exchange efficiency is improved, air flow in the heat exchange tank can conduct heat exchange more smoothly, and the situation that heat cannot be fully recycled due to the fact that the air volume is too large is avoided.

Description

Technical Field

[0001] The present invention relates to the field of waste heat recovery, and in particular to a waste heat recovery device for an energy-saving generator used in chemical production. Background Art

[0002] Waste heat recovery technology for energy-efficient generators is an effective way to improve energy efficiency. Generators, especially those used in power generation equipment such as internal combustion engines and gas turbines, generate significant amounts of heat during operation. Recovering waste heat not only saves energy but also reduces operating costs and minimizes negative environmental impacts.

[0003] For example, the Chinese patent publication number CN 17704836A discloses the following technical solution: a low-temperature waste heat recovery device for a roasting furnace, comprising a heat exchanger and an air supply device connected to the lower end of the heat exchanger; the heat exchanger comprises a vertically arranged heat exchange tank, a plurality of fins vertically arranged in the heat exchange tank, a heat pipe spirally arranged in the fins, a heat exchanger connected to the heat pipe, a first scraping device arranged on the inner side of the fins, an exhaust hole provided on the upper side wall of the heat exchange tank, an exhaust pipe provided on the lower end of the heat exchange tank, and a first valve provided on the exhaust pipe; the first scraping device comprises a first scraper and a plurality of first chutes provided on the side of a scraper, the inner side of the fins slidingly arranged in the first chutes. The low-temperature waste heat recovery device for a roasting furnace can not only automatically clean the fins, but also does not require additional energy consumption during the cleaning process.

[0004] The existing technology has the following problems: The spacing and number of fins in this device are fixed. By properly adjusting the number and spacing of the fins, a more uniform temperature distribution can be achieved, hot and cold spots can be avoided, and the flow of fluid over the fin surface can be optimized. Too small a spacing may result in too low a fluid flow rate and low heat transfer efficiency. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a waste heat recovery device for an energy-saving generator for chemical production, which solves the problems raised in the above-mentioned background technology.

[0006] The heat dissipation device of claim 1, wherein the heat dissipation device is constructed so that the heat dissipation device can be installed in an off-highway area, and the heat dissipation device can be installed in an off-highway area.

[0007] Preferably, the fixed fin is fixedly connected to the outer wall of the mounting ring, a movable groove is provided at the upper end of the mounting ring, a sliding block is slidably connected inside the movable groove, and the sliding block is fixedly connected to the movable fin.

[0008] Preferably, the movable ring is slidably connected to the outer wall of the fixed rod, and a spring is rotatably connected between the movable ring and the rotating drum.

[0009] Preferably, the inner and outer walls of the heat exchange tank are jointly equipped with an exhaust assembly, and the outer walls of the fixed fins and the movable fins are equipped with a dust removal assembly.

[0010] Preferably, the exhaust assembly includes a hydraulic compartment, which is fixedly connected to the outer wall of the fixed fin, and the two ends of the hydraulic compartment are internally slidably connected with a hydraulic rod A and a hydraulic rod B, the outer end of the hydraulic rod B is fixedly connected to a rectangular frame, the outer wall of the heat exchange tank is rotatably connected with an annular plate, the annular plate and the outer wall of the heat exchange tank are respectively provided with a through hole A and a through hole B, the upper end of the annular plate is fixedly connected with a fixed shaft, the fixed shaft is slidably connected to the inside of the rectangular frame, and the outer wall of the movable fin is fixedly connected with an L-shaped block.

[0011] Preferably, the opening A and the opening B are of the same size.

[0012] Preferably, the dust removal assembly includes a scraper A and a scraper B, the scraper A is slidably connected to the side of the fixed fin close to the movable fin, and the scraper B is slidably connected to the side of the movable fin close to the fixed fin. The side surfaces of the scraper A and the scraper B are provided with mounting grooves, the inner walls of the mounting grooves are rotatably connected to the mounting shaft, the outer wall of the mounting shaft is provided with a guide groove, the outer wall movable sleeve of the mounting shaft is provided with a movable sleeve, the inner wall of the movable sleeve is fixedly connected to a sliding shaft, the outer wall fixed sleeve of the movable sleeve is provided with an elastic retractable plate, and the outer walls of the scraper A and the scraper B are fixedly connected with a connecting ring.

[0013] Preferably, the sliding shaft is slidably connected to the inside of the guide groove, and the outer wall of the fixing rod is fixedly sleeved with a filter disc.

[0014] The benefits of this application are: (1) The synergistic effect of the fixed fins and the movable fins of the present application, as well as the rotating mechanism of the rotating plate and the movable fins, ensures the maximum utilization of the hot air inside the heat exchange tank and avoids heat loss. Through the design of the rotating drum and the connecting rods A and B, when the air volume changes, the movable fins can automatically adjust the gap with the fixed fins to adapt to different air volumes, thereby improving the heat exchange efficiency and allowing the air flow inside the heat exchange tank to exchange heat more smoothly, avoiding the situation where heat cannot be fully recovered due to excessive air volume.

[0015] (2) The exhaust assembly of the present application can effectively limit the air volume when the air volume is small through the design of the hydraulic chamber and hydraulic rods A and B, ensuring that the hot air stays inside the heat exchange tank for a sufficient time, thereby improving the heat recovery rate. The channel size can be adjusted by rotation to accurately control the flow rate of the air entering, thereby avoiding excessive air volume affecting the heat exchange efficiency.

[0016] (3) The design of scrapers A and B in the present application, as well as the adaptive adjustment of the elastic expansion plate, enables the fin surface to be automatically cleaned during use. This mechanism can effectively prevent dust from accumulating on the fin surface and ensure its heat transfer effect. The elastic expansion plate can automatically adjust its position according to the change in the gap between the movable fin and the fixed fin, ensuring the appropriate fin gap and avoiding the influence of heat transfer due to the fin gap being too large or too small. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings that constitute part of this application are used to provide a further understanding of this application and make other features, objects and advantages of this application more apparent. The illustrative embodiment drawings of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the internal structure of the heat exchange tank of the present invention; Figure 3 This is a schematic diagram of the internal structure of the heat exchange tank of the present invention when viewed from above; Figure 4 This is an enlarged structural diagram of the connecting rod A of the present invention; Figure 5 The present invention Figure 1 The enlarged structural diagram at B in the middle; Figure 6 It is a partial cross-sectional structural schematic diagram of the present invention; Figure 7 The present invention Figure 6 Enlarged structural diagram at point C in the middle.

[0018] In the above figure, 1. Inlet pipe; 2. Tee pipe; 3. Heat exchange tank; 41. Heat conduction pipe; 42. Fixed rod; 43. Mounting ring; 44. Fixed fin; 45. Movable groove; 46. Sliding block; 47. Movable fin; 48. Rotating drum; 49. Blade; 410. Connecting rod A; 411. Connecting block; 412. Connecting rod B; 413. Movable ring; 414. Stop block; 415. Rotating plate; 416. Connecting shaft; 417. Spring; 5. Exhaust Components; 51. Hydraulic bin; 52. Hydraulic rod A; 53. Hydraulic rod B; 54. Rectangular frame; 55. Annular plate; 56. Port A; 57. Fixed shaft; 58. Port B; 59. L-shaped block; 6. Dust removal component; 61. Scraper A; 62. Mounting groove; 63. Mounting shaft; 64. Guide groove; 65. Scraper B; 66. Movable sleeve; 67. Sliding shaft; 68. Elastic retractable plate; 69. Connecting ring; 610. Filter disc. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate to describe the embodiments of the present application here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0022] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0023] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] Example 1, please refer to Figures 1-6This embodiment provides a waste heat recovery device for an energy-saving generator for chemical production, including: an intake pipe 1; a tee pipe 2, which is fixedly connected to one end of the intake pipe 1; the intake pipe 1 is responsible for guiding the hot air generated by the generator into the tee pipe 2, and then introduced into the heat exchange tank 3 through the tee pipe 2. The design of the tee pipe 2 allows the airflow to enter the heat exchange system smoothly, providing flow support for subsequent heat recovery; the heat exchange tank 3, which is fixedly connected to both ends of the tee pipe 2, is the core part of the device and is responsible for transferring the heat in the hot air to the heat-conducting medium, and further recovering heat energy through the heat exchanger. The internal design of the heat exchange tank 3 allows the hot air to come into contact with the heat-conducting pipe 41 to transfer heat; the heat-conducting pipe 41 is provided inside the heat exchange tank 3, and the heat-conducting pipe 41 transfers the heat of the hot air to the heat-conducting medium. The function of the heat-conducting medium is to absorb heat and effectively transfer the heat to the heat exchanger. The interior of the heat exchange tank 3 is fixedly connected to a fixed rod 42, and the external fixed sleeve of the fixed rod 42 is provided with a mounting ring 43. The outer side of the mounting ring 43 is provided with fixed fins 44 and movable fins 47. The outer wall of the fixed rod 42 is rotatably connected to a rotating cylinder 48, and the outer wall of the rotating cylinder 48 is fixedly connected to blades 49. The outer wall of the rotating cylinder 48 is hinged to a connecting rod A410, and the other end of the connecting rod A410 is hinged to a connecting block 411. The outer wall of the connecting block 411 is fixedly connected to a stop block 414, and the outer wall of the connecting block 411 is hinged to a connecting rod B412. The other end of the connecting rod B412 is hinged to a movable ring 413. The inner wall of the heat exchange tank 3 is rotatably connected to a rotating plate 415, and the upper end of the rotating plate 415 is fixedly connected to a connecting shaft 416. The top of the connecting shaft 416 is fixedly connected to the movable fin 47.

[0026] The fixed fin 44 is fixedly connected to the outer wall of the mounting ring 43 . A movable groove 45 is formed at the upper end of the mounting ring 43 . A sliding block 46 is slidably connected inside the movable groove 45 . The sliding block 46 is fixedly connected to the movable fin 47 .

[0027] The movable ring 413 is slidably connected to the outer wall of the fixed rod 42 , and a spring 417 is rotatably connected between the movable ring 413 and the rotating drum 48 .

[0028] The inner and outer walls of the heat exchange tank 3 are jointly equipped with an exhaust assembly 5, and the outer walls of the fixed fins 44 and the movable fins 47 are equipped with a dust removal assembly 6. First, the hot air generated by the energy-saving generator is input into the interior of the heat exchange tank 3 through the air intake pipe 1 and the three-way pipe 2, and then the fixed fins 44 and the movable fins 47 will transfer the heat to the interior of the heat conduction pipe 41. The heat conduction pipe 41 transfers the heat to the heat-conducting medium inside it, and the heat-conducting medium transfers the heat to the heat exchanger and utilizes the heat. When the air volume is too large, after the hot air enters the heat exchange tank 3, the blades 49 outside the rotating drum 48 will rotate accordingly, and then the rotating drum 48 will also rotate accordingly, and then the connecting rod A410 outside the rotating drum 48 will also rotate accordingly. Then, under the action of centrifugal force, the connecting rod A410 drives the connecting block 411 to rotate, and the connecting rod A410 will open to the outside, then Then the connecting block 411 will move outward, and at the same time, the connecting block 411 will drive the connecting rod B412 to rotate and move it to the lower end, thereby driving the movable ring 413 to descend. When the connecting block 411 moves outward, it will drive the retaining block 414 to move outward until the retaining block 414 contacts the inner side of the rotating plate 415, and then the retaining block 414 will drive the rotating plate 415 to rotate while rotating. Then the rotating plate 415 will drive the movable fin 47 to rotate through the connecting shaft 416 at its upper end. When the movable fin 47 rotates, it will drive the sliding block 46 on its outer wall to slide inside the movable groove 45, so that the movable fin 47 can be fitted with the fixed fin 44, reducing the spacing between the fins.

[0029] Example 2, please refer to Figures 1-6 On the basis of Example 1, the exhaust assembly 5 includes a hydraulic tank 51, which is fixedly connected to the outer wall of the fixed fin 44. The hydraulic rod A52 and the hydraulic rod B53 are slidably connected inside the two ends of the hydraulic tank 51. The outer end of the hydraulic rod B53 is fixedly connected to a rectangular frame 54. The outer wall of the heat exchange tank 3 is rotatably connected to an annular plate 55. The annular plate 55 and the outer wall of the heat exchange tank 3 are respectively provided with a through hole A56 and a through hole B58. The upper end of the annular plate 55 is fixedly connected to a fixed shaft 57. The fixed shaft 57 is slidably connected to the inside of the rectangular frame 54. The outer wall of the movable fin 47 is fixedly connected to an L-shaped block 59.

[0030] The size of the port A56 and the port B58 are the same. During use, when the air volume is normal, the opening A56 on the outer wall of the annular plate 55 does not completely overlap with the opening B58 on the outer wall of the heat exchange tank 3. Therefore, the air outlet channel formed by the opening A56 and the opening B58 is not in the maximum state at this time, thereby ensuring that when the air volume is not large, the hot air can stay inside the heat exchange tank 3 for a longer time. When the movable fin 47 moves toward the fixed fin 44, the L-shaped block 59 located on the outer wall of the movable fin 47 will also move accordingly, and then contact the hydraulic rod A52 and push it to slide toward the inside of the hydraulic chamber 51. Then the hydraulic rod B53 located inside the other port of the hydraulic chamber 51 will move toward the outside, and then drive the rectangular frame 54 to move, and then drive the fixed shaft 57 slidably connected to the inside of the rectangular frame 54 to drive the annular plate 55 to rotate, so that the opening A56 opened on the outer wall of the annular plate 55 and the opening B58 opened on the outer wall of the heat exchange tank 3 are completely overlapped, thereby making the air outlet channel become the maximum state. Example 3, please refer to Figure 1-Figure 7 On the basis of Example 1, the dust removal component 6 includes a scraper A61 and a scraper B65. The scraper A61 is slidably connected to the side of the fixed fin 44 close to the movable fin 47, and the scraper B65 is slidably connected to the side of the movable fin 47 close to the fixed fin 44. The side surfaces of the scraper A61 and the scraper B65 are provided with a mounting groove 62. The inner wall of the mounting groove 62 is rotatably connected to the mounting shaft 63. The outer wall of the mounting shaft 63 is provided with a guide groove 64. The outer wall of the mounting shaft 63 is provided with a movable sleeve 66. The inner wall of the movable sleeve 66 is fixedly connected to a sliding shaft 67. The outer wall of the movable sleeve 66 is fixedly provided with an elastic retractable plate 68. The outer walls of the scraper A61 and the scraper B65 are fixedly connected with a connecting ring 69. The movable sleeve 66 slides in the guide groove 64 of the mounting shaft 63 through the sliding shaft 67. When the gap between the fins changes, the elastic retractable plate 68 will be adaptively adjusted through the movement of the movable sleeve 66. These components can adjust their elasticity when cleaning the fin surface, ensuring flexible operation.

[0031] The sliding shaft 67 is slidably connected to the inside of the guide groove 64 , and a filter disc 610 is fixedly sleeved on the outer wall of the fixing rod 42 .

[0032] During use, when hot air enters the interior of the heat exchange tank 3 through the three-way pipe 2 under the action of air pressure and wind, since the scraper A61, the scraper B65 and the elastic telescopic plate 68 have a large area, the scraper A61, the scraper B65 and the elastic telescopic plate 68 will be driven to rise at the same time under the action of the connecting ring 69, so that the part of the fin located on the outside of the heat conducting tube 41 can be cleaned, and the inside of the fin located on the inside of the heat conducting tube 41 will basically not be contaminated with dust due to the action of the bottom filter plate 610. When the movable fin 47 approaches one end distance of the fixed fin 44, the elastic telescopic plates 68 on both sides will contact, and then the elastic telescopic plate 68 will shrink, and at the same time the movable sleeve 66 fixedly connected to it will also move The inner side contracts and slides on the outer wall of the mounting shaft 63. Since the sliding shaft 67 on the inner wall of the movable sleeve 66 is slidably connected to the guide groove 64 on the outside of the mounting shaft 63, the movable sleeve 66 will rotate during the movement, and then drive the elastic expansion plate 68 located between the fixed fin 44 and the movable fin 47 to rotate until it rotates to the outside of the fixed fin 44 and the movable fin 47, thereby ensuring that it will not affect the movable fin 47 approaching the fixed fin 44. After the elastic expansion plate 68 rotates, a larger gap will appear between the fixed fins 44 on both sides. At this time, the wind force can no longer keep scraper A61 and scraper B65 at a certain height, and then scraper A61 and scraper B65 will fall.

[0033] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A waste heat recovery device for an energy-saving generator for chemical production, characterized in that: include: Intake pipe; A tee pipe, the tee pipe is fixedly connected to one end of the air inlet pipe; A heat exchange tank, which is fixedly connected to both ends of the tee pipe; A heat conduction pipe is provided inside the heat exchange tank, and a fixed rod is fixedly connected to the inside of the heat exchange tank, and an external fixed sleeve of the fixed rod is provided with a mounting ring, and fixed fins and movable fins are provided on the outside of the mounting ring. The outer wall of the fixed rod is rotatably connected to a rotating drum, and the outer wall of the rotating drum is fixedly connected to blades, and the outer wall of the rotating drum is hinged with a connecting rod A, and the other end of the connecting rod A is hinged with a connecting block, and the outer wall of the connecting block is fixedly connected to a resist block, and the outer wall of the connecting block is hinged with a connecting rod B, and the other end of the connecting rod B is hinged with a movable ring, and the inner wall of the heat exchange tank is rotatably connected to a rotating plate, and the upper end of the rotating plate is fixedly connected to a connecting shaft, and the top of the connecting shaft is fixedly connected to the movable fin.

2. The waste heat recovery device for an energy-saving generator for chemical production according to claim 1, characterized in that: The fixed fin is fixedly connected to the outer wall of the mounting ring. A movable groove is provided at the upper end of the mounting ring. A sliding block is slidably connected inside the movable groove. The sliding block is fixedly connected to the movable fin.

3. The waste heat recovery device for an energy-saving generator for chemical production according to claim 2, characterized in that: The movable ring is slidably connected to the outer wall of the fixed rod, and a spring is rotatably connected between the movable ring and the rotating drum.

4. The waste heat recovery device for an energy-saving generator for chemical production according to claim 3, characterized in that: The inner and outer walls of the heat exchange tank are jointly equipped with an exhaust assembly, and the outer walls of the fixed fins and the movable fins are equipped with a dust removal assembly.

5. The waste heat recovery device for an energy-saving generator for chemical production according to claim 4, characterized in that: The exhaust assembly includes a hydraulic compartment, which is fixedly connected to the outer wall of the fixed fin. Hydraulic rods A and hydraulic rods B are slidably connected inside the two ends of the hydraulic compartment. The outer end of the hydraulic rod B is fixedly connected to a rectangular frame. The outer wall of the heat exchange tank is rotatably connected to an annular plate. The annular plate and the outer wall of the heat exchange tank are respectively provided with a through hole A and a through hole B. The upper end of the annular plate is fixedly connected to a fixed shaft, and the fixed shaft is slidably connected to the inside of the rectangular frame. The outer wall of the movable fin is fixedly connected to an L-shaped block.

6. The waste heat recovery device for an energy-saving generator for chemical production according to claim 5, characterized in that: The sizes of the through opening A and the through opening B are the same.

7. The waste heat recovery device for an energy-saving generator for chemical production according to claim 4, characterized in that: The dust removal assembly includes a scraper A and a scraper B. The scraper A is slidably connected to the side of the fixed fin close to the movable fin, and the scraper B is slidably connected to the side of the movable fin close to the fixed fin. The sides of the scraper A and the scraper B are provided with mounting grooves, and the inner walls of the mounting grooves are rotatably connected to the mounting shaft. The outer wall of the mounting shaft is provided with a guide groove, and the outer wall movable sleeve of the mounting shaft is provided with a movable sleeve. The inner wall of the movable sleeve is fixedly connected to a sliding shaft, and the outer wall fixed sleeve of the movable sleeve is provided with an elastic retractable plate. The outer walls of the scraper A and the scraper B are fixedly connected with a connecting ring.

8. The waste heat recovery device for an energy-saving generator for chemical production according to claim 7, characterized in that: The sliding shaft is slidably connected to the inside of the guide groove, and the outer wall of the fixing rod is fixedly sleeved with a filter disk.

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