A bell-type furnace waste heat recovery device
By designing a waste heat recovery device of the hood furnace, including a flue gas heat exchange mechanism, a primary heat recovery mechanism and a secondary heat recovery mechanism, the problem of low waste heat recovery efficiency of the flue gas of the hood furnace is solved, and the recovery of high-temperature hot water and steam is realized, and the thermal energy needs of high-energy-consuming processes are met.
Patent Information
- Application Number
- CN202510110224.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-04-04
AI Technical Summary
In the prior art, the flue gas waste heat recovery efficiency of the cover annealing furnace is low, resulting in a low hot water temperature, making it difficult to meet the needs of high-energy-consuming processes such as cold rolling and pickling.
A cover furnace waste heat recovery device is designed, including a flue gas heat exchange mechanism, a primary heat recovery mechanism and a secondary heat recovery mechanism. The flue gas heat exchange mechanism adjusts the water flow direction and the contact time of the flue gas with the fin through the heat exchange frame and the shunt assembly to improve the heat exchange efficiency. The primary heat recovery mechanism recycles the output water in one piece, and the secondary heat recovery mechanism recycles the output water in two piece, converting it into high-temperature steam.
By improving the heat exchange efficiency between flue gas and water, the recovery of hot water and steam at higher temperatures is achieved, meeting the thermal energy needs of high-energy-consuming processes such as cold rolling and pickling, and reducing energy consumption and production costs.
Smart Images
Figure CN119755995A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of waste heat recovery, and in particular to a bell-type furnace waste heat recovery device. Background Art
[0002] Bell annealing furnace is widely used in the steel and other industries, and the flue gas waste heat generated by it has a high recovery value. With the increasing requirements for energy conservation, emission reduction and sustainable development, more and more companies are beginning to pay attention to and apply bell annealing furnace waste heat recovery technology.
[0003] According to the characteristics of flue gas temperature, flow rate, etc., the waste heat recovery process is also different. Common recovery methods include waste heat segmented recovery, air preheater, gas preheater, and high-temperature flue gas waste heat recovery graphite device, etc. These technologies can effectively convert the waste heat in the flue gas into usable heat energy or steam for subsequent processes. By recovering the waste heat of the flue gas from the bell-type annealing furnace, enterprises can significantly reduce energy consumption and production costs. At the same time, this also helps to reduce greenhouse gas emissions and achieve green production.
[0004] The process parameters and flue gas characteristics of bell-type annealing furnaces of different enterprises may be different, so it is necessary to select the appropriate waste heat recovery process according to the specific situation. However, in actual applications, there is often a problem of poor process matching, resulting in unsatisfactory waste heat recovery effect. The current problem is that bell-type annealing furnaces are intermittently operated, the flue gas composition is complex, the temperature fluctuates greatly and other factors may lead to low waste heat recovery efficiency. More importantly, according to the current technology, water and flue gas are mainly used for heat exchange to obtain 90-95℃ hot water, which has a low temperature and is basically used for winter heating. It is difficult to use it in energy-consuming processes such as cold rolling and pickling. Therefore, enterprises lack the motivation to recover this waste heat. Summary of the invention
[0005] The present invention provides a bell-type furnace waste heat recovery device, which solves the problem of low waste heat recovery efficiency of flue gas in a bell-type annealing furnace in the related art.
[0006] The technical solution of the present invention is as follows: A hood-type furnace waste heat recovery device comprises a flue gas duct, which is connected to a smoke exhaust port on the hood-type furnace, and is characterized in that it also comprises a flue gas heat exchange mechanism, the flue gas in the hood-type furnace is introduced into the flue gas heat exchange mechanism, the flue gas heat exchange mechanism is connected with a primary heat recovery mechanism and a secondary heat recovery mechanism, the flue gas heat exchange mechanism is used to absorb the heat in the flue gas into water and output water containing different amounts of heat respectively, wherein the flue gas heat exchange mechanism comprises a heat exchange frame and a diversion component, the heat exchange frame is provided with a heat exchange bin and a diversion bin, the diversion bin is provided with two, and the two diversion bins are respectively provided with On both sides of the heat exchange bin, two diversion assemblies are arranged, and the two diversion assemblies are respectively arranged in the two diversion bins. A plurality of heat exchange tubes are connected to the diversion assemblies, and the diversion assemblies are used to adjust the flow direction of water in the heat exchange tubes. The primary heat recovery mechanism is connected to the two diversion assemblies, and the primary heat recovery mechanism is used to perform primary recovery of the water output from the flue gas heat exchange mechanism. The primary heat recovery mechanism and one of the diversion assemblies are both connected to the secondary heat recovery mechanism, and the secondary heat recovery mechanism is used to perform secondary recovery of the water output from the flue gas heat exchange mechanism.
[0007] The heat exchange frame is provided with a smoke inlet, a smoke outlet, a slide groove and a guide component. The smoke inlet is opened at the bottom of the heat exchange frame, the smoke inlet is communicated with the heat exchange bin, the smoke duct is communicated with the smoke inlet, the smoke outlet is opened at the top of the heat exchange frame, the smoke outlet is communicated with the heat exchange bin, a plurality of slide grooves are provided, and the plurality of slide grooves are respectively opened on both sides of the heat exchange bin, the slide groove is arranged between two adjacent rows of the heat exchange tubes, the guide component is slidably arranged on the slide groove, and the guide component is used to guide the flow of smoke in the heat exchange bin.
[0008] The flow diversion component includes a flow guide tube 1, a flow guide tube 2 and a flow guide tube 3. The flow guide tube 1 is provided with a plurality of flow guide tubes, and the plurality of flow guide tubes 1 are fixedly connected to the diversion bin. The flow guide tube 2 is provided with a plurality of flow guide tubes, and each of the flow guide tubes 1 is connected with a plurality of flow guide tubes 2. The flow guide tubes 2 are fixedly connected in the diversion bin, and each of the flow guide tubes 2 is fixedly connected with the flow guide tube 3. The two ends of the flow guide tube 2 are respectively connected with the two ends of the flow guide tube 3. The flow guide tube 3 is fixedly connected in the diversion bin, and the plurality of heat exchange tubes are fixedly connected with equal intervals on the flow guide tube 3, and are connected with the same The heat exchange tubes connected with three phases of guide tubes are horizontally arranged in the heat exchange bin, and the two ends of the guide tubes are respectively connected with the three phases of guide tubes corresponding to the two diversion components, and a plurality of fins are fixedly connected to the heat exchange tubes connected with the same three phases of guide tubes, a valve one is fixedly connected to the guide tube two, and a plurality of valves two are fixedly connected to the guide tube three, the valve two is arranged between two adjacent heat exchange tubes, and two heat exchange tubes are arranged between two adjacent valves two, and the plurality of valves two arranged on the guide tube three connected with the two ends of the heat exchange tube are staggered.
[0009] The guide assembly includes a guide plate and a pulling frame, wherein a plurality of guide plates are provided, and the guide plates are slidably connected in the slide groove, and a plurality of pulling frames are fixedly connected to the pulling frame, and two pulling frames are provided, and a plurality of driving cylinders are fixedly connected to the two pulling frames, and the output ends of the driving cylinders are connected to the heat exchange frame, and the two pulling frames are respectively arranged on both sides of the heat exchange frame, and the guide plates on the two pulling frames are staggered.
[0010] The primary heat recovery mechanism includes a heating tank and a pressurized hot water tank. In the diversion component close to the heating tank, the guide pipe 1 close to the smoke outlet extends into the heating tank. After passing through the heating tank, the guide pipe 1 is connected with multiple guide pipes 1 in another diversion component. Two water inlet pipes and two water outlet pipes are provided on the pressurized hot water tank. In the diversion component close to the pressurized hot water tank, the guide pipe 1 close to the smoke inlet is connected with one of the water inlet pipes on the pressurized hot water tank, and one of the water outlet pipes is connected with multiple guide pipes 1 in another diversion component.
[0011] The secondary heat recovery mechanism includes a pressurized hot water pump, a hot water pressure relief tank and a steam gas-liquid separator. The water inlet on the pressurized hot water pump is connected to the water inlet pipe on the pressurized hot water tank that is not connected to the guide pipe. The water outlet of the pressurized hot water pump is connected to the water inlet on the hot water pressure relief tank. The water outlet on the hot water pressure relief tank is connected to the water inlet on the steam gas-liquid separator. The water outlet on the steam gas-liquid separator is connected to the water inlet pipe on the pressurized hot water tank. A steam outlet is provided on the top of the steam gas-liquid separator.
[0012] The working principle and beneficial effects of the present invention are: 1. In the present invention, a flow diversion component is provided. When valves 1 and 2 on the guide tube 2 and the guide tube 3 connected to the same row of heat exchange tubes are both opened, water with low temperature flows into the heat exchange tubes in the guide tube 1, the guide tube 2 and the guide tube 3 on one side in sequence, and then flows into the guide tube 3, the guide tube 2 and the guide tube 1 on the other side. At this time, the water only passes through the heat exchange bin once, and the flue gas heats the water through the fins and the heat exchange tubes. The valves 1 on the two guide tubes 2 are all closed, and the valves 2 on the two guide tubes 3 are all closed. The water only flows through one side of the guide tube 2 to the guide tube 3, and then the water reciprocates in all the heat exchange tubes and the two guide tubes 3. In this process, the water is always heated by the flue gas. After that, the water flows to the guide tube 2 through the guide tube 3. In this process, the water and the smoke undergo a longer heat exchange, and the water temperature is higher. Each diversion assembly is provided with a total of six guide tubes 2 and guide tubes 3, and two guide tubes 1. Each guide tube 1 is connected to three guide tubes 2 respectively. The heat exchange tubes close to the smoke inlet are in contact with a higher smoke temperature. Therefore, after the water passes through the heat exchange tubes closer to the smoke inlet, the water flows out of the guide tube 1 at a higher temperature. Since more heat is transferred to the heat exchange tubes close to the smoke inlet, the heat exchange tubes close to the smoke outlet are in contact with a lower smoke temperature. Therefore, the water temperature flowing out of the guide tube 1 close to the smoke outlet is lower than that of the water temperature flowing out of the guide tube 1 close to the smoke outlet, and thus the water can be distinguished and used separately. 2. In the present invention, by setting up a flue gas heat exchange mechanism, the contact time between the flue gas and the fins can be adjusted according to the required hot water temperature and the temperature of the flue gas, and the movement time of water in the heat exchange chamber can be adjusted, thereby adjusting the temperature of the output water. By setting up a secondary heat recovery mechanism, water with a higher temperature can be converted into high-temperature steam for use, thereby saving more energy. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention from another perspective; Figure 3 It is a schematic diagram of the internal cross-sectional structure of the heat exchange frame in the present invention; Figure 4 It is a cross-sectional structural schematic diagram of the matching of the flow splitting component and the heat exchange tube in the present invention; Figure 5 It is a schematic diagram of the internal cross-sectional structure of the heat exchange frame in the present invention from another viewing angle; Figure 6 It is a schematic cross-sectional structure diagram of the matching flow guide assembly and heat exchange frame in the present invention.
[0015] In the figure: 1. heat exchange chamber; 2. diversion chamber; 3. heat exchange tube; 4. smoke inlet; 5. smoke outlet; 6. chute; 7. guide tube 1; 8. guide tube 2; 9. guide tube 3; 10. valve 1; 11. valve 2; 12. guide plate; 13. pulling frame; 14. driving cylinder; 15. heating tank; 16. pressurized hot water tank; 17. pressurized hot water pump; 18. hot water pressure relief tank; 19. steam gas-liquid separator; 20. steam outlet. DETAILED DESCRIPTION
[0016] The following will be combined with 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.
[0017] like Figure 1 to Figure 6 As shown, this embodiment proposes a hood-type furnace waste heat recovery device, including a flue gas duct, which is connected to the smoke exhaust port on the hood-type furnace, and is characterized in that it also includes a flue gas heat exchange mechanism, the flue gas in the hood-type furnace is introduced into the flue gas heat exchange mechanism, the flue gas heat exchange mechanism is connected with a primary heat recovery mechanism and a secondary heat recovery mechanism, the flue gas heat exchange mechanism is used to absorb the heat in the flue gas into water and output water containing different amounts of heat respectively, wherein the flue gas heat exchange mechanism includes a heat exchange frame and a diversion component, the heat exchange frame is provided with a heat exchange bin 1 and a diversion bin 2, two diversion bins 2 are provided, and the two diversion bins 2 are respectively arranged on both sides of the heat exchange bin 1, Two diversion components are provided, and the two diversion components are respectively arranged in two diversion bins 2. A plurality of heat exchange tubes 3 are connected to the diversion components, and the diversion components are used to adjust the water flow direction in the heat exchange tube 3. The primary heat recovery mechanism is connected to the two diversion components, and the primary heat recovery mechanism is used to perform a primary recovery of the water output from the flue gas heat exchange mechanism. The primary heat recovery mechanism and one of the diversion components are both connected to the secondary heat recovery mechanism, and the secondary heat recovery mechanism is used to perform a secondary recovery of the water output from the flue gas heat exchange mechanism. When the flue gas passes through the heat exchange frame, the flue gas heats the water inside the heat exchange tube 3 and outputs them separately, and different temperatures are utilized separately.
[0018] like Figure 1~Figure 2 As shown, the heat exchange frame is provided with a smoke inlet 4, a smoke outlet 5, a chute 6 and a guide component. The smoke inlet 4 is opened at the bottom of the heat exchange frame, and the smoke inlet 4 is connected to the heat exchange bin 1. The smoke outlet 5 is opened at the top of the heat exchange frame, and the smoke outlet 5 is connected to the heat exchange bin 1. A plurality of chute 6 are provided, and the plurality of chute 6 are respectively opened on both sides of the heat exchange bin 1. The chute 6 is arranged between two adjacent rows of heat exchange tubes 3. The guide component is slidably arranged on the chute 6, and the guide component is used to guide the flow of smoke in the heat exchange bin 1.
[0019] like Figure 3~Figure 6As shown, the flow diversion component includes a flow guide pipe 1 7, a flow guide pipe 2 8 and a flow guide pipe 3 9, a plurality of flow guide pipes 1 7 are provided, and a plurality of flow guide pipes 1 7 are fixedly connected to the diversion bin 2, a plurality of flow guide pipes 2 8 are provided, each flow guide pipe 1 7 is connected to a plurality of flow guide pipes 2 8, the flow guide pipe 2 8 is fixedly connected in the diversion bin 2, a flow guide pipe 3 9 is fixedly connected to each flow guide pipe 2 8, the two ends of the flow guide pipe 2 8 are respectively connected to the two ends of the flow guide pipe 3 9, the flow guide pipe 3 9 is fixedly connected in the diversion bin 2, a plurality of heat exchange tubes 3 are fixedly connected to the flow guide pipe 3 9 at equal intervals, the heat exchange tubes 3 connected to the same flow guide pipe 3 9 are transversely arranged in the heat exchange bin 1, and the two ends of the flow guide pipes are respectively connected to the two diversion components. The corresponding flow guide pipes 3 9 are connected, and a plurality of fins are fixedly connected to the heat exchange tube 3 connected to the same flow guide pipe 3 9, a valve 10 is fixedly connected to the flow guide pipe 2 8, and a plurality of valves 2 11 are fixedly connected to the flow guide pipe 3 9, and the valve 2 11 is arranged between two adjacent heat exchange tubes 3, and two heat exchange tubes 3 are arranged between two adjacent valves 2 11, and the plurality of valves 2 11 arranged on the flow guide pipes 3 9 connected at both ends of the heat exchange tube 3 are arranged in a staggered manner. In this embodiment, four valves 2 11 are arranged on the flow guide pipes 3 9 on the two flow diversion assemblies. When the valves 10 and 2 11 on the flow guide pipes 2 8 and the flow guide pipes 3 9 connected to the same row of heat exchange tubes 3 are opened, the low temperature The water flows into the heat exchange tube 3 in the guide tube 1 7, the guide tube 2 8 and the guide tube 3 9 on one side in turn, and then flows into the guide tube 3 9, the guide tube 2 8 and the guide tube 1 7 on the other side. At this time, the water only passes through the heat exchange chamber 1 once, and the flue gas heats the water through the fins and the heat exchange tube 3. The valves 10 on the two guide tubes 2 8 are all closed, and the valves 2 11 on the two guide tubes 3 9 are all closed. The water only flows through one side of the guide tube 2 8 to the guide tube 3 9, and then the water reciprocates on all the heat exchange tubes 3 and the two guide tubes 3 9. In this process, the water is always heated by the flue gas. Finally, the water flows to the guide tube 2 8 through the guide tube 3 9. In this process, the water and the flue gas are heated. After a longer period of heat exchange, the water temperature is higher. Each diversion assembly is provided with six guide tubes 2 8 and guide tubes 3 9, and two guide tubes 1 7. Each guide tube 1 7 is respectively connected to three guide tubes 2 8. The smoke temperature contacted by the heat exchange tube 3 close to the smoke inlet 4 is higher. Therefore, after the water passes through the heat exchange tube 3 closer to the smoke inlet 4, the outflow temperature in the guide tube 1 7 is higher. Since more heat is transferred to the heat exchange tube 3 close to the smoke inlet 4, the smoke temperature contacted by the heat exchange tube 3 close to the smoke outlet 5 is lower. Therefore, the temperature of water flowing out of the guide tube 1 7 close to the smoke outlet 5 is lower than that of the water flowing out of the guide tube 1 7 close to the smoke outlet 4, and they are then distinguished and utilized separately.
[0020] like Figure 5~Figure 6As shown, the guide assembly includes a guide plate 12 and a pulling frame 13, and a plurality of guide plates 12 are provided. The guide plates 12 are slidably connected in the slide groove 6, and a plurality of pulling frames 13 are fixedly connected to the pulling frame 13. There are two pulling frames 13, and a plurality of driving cylinders 14 are fixedly connected to the two pulling frames 13. The output ends of the driving cylinders 14 are connected to the heat exchange frame. The two pulling frames 13 are respectively arranged on both sides of the heat exchange frame. The guide plates 12 on the two pulling frames 13 are staggered. In this embodiment, three guide plates 12 and four driving cylinders 14 are respectively arranged on each pulling frame 13. When the output end of the driving cylinder 14 is shortened, the guide plate 12 is pulled along the slide groove 6 and extends between the two rows of heat exchange tubes 3, so that the flue gas performs S-shaped movement in the heat exchange bin 1, and the smoke gas contacts the fins and the heat exchange tubes 3 for a longer time, so that the temperature of the smoke can be more fully utilized.
[0021] like Figure 1~Figure 2 As shown, the primary heat recovery mechanism includes a heating tank 15 and a pressurized hot water tank 16. In the diversion assembly near the heating tank 15, a guide pipe 7 near the smoke outlet 5 extends into the heating tank 15. The guide pipe 7 passes through the heating tank 15 and is connected to multiple guide pipes 7 in another diversion assembly. The pressurized hot water tank 16 is provided with two water inlet pipes and two water outlet pipes. In the diversion assembly near the pressurized hot water tank 16, a guide pipe 7 near the smoke inlet 4 is connected to one of the guide pipes 7 on the pressurized hot water tank 16. The water inlet pipes are connected, and one of the water outlet pipes is connected to a plurality of guide pipes 7 in another diversion assembly. The water with a lower temperature near the smoke outlet 5 flows into the heating tank 15 to heat the pickling condensate water. Then the water leaves the heating tank 15 and flows back to the diversion assembly, and enters the heat exchange tube 3 for heating. The water with a higher temperature near the smoke inlet 4 flows into the pressurized hot water tank 16 to obtain hot water with a certain pressure, for example, 120-140°C, which provides the prerequisite for the subsequent hot water decompression to release steam.
[0022] like Figure 1~Figure 2As shown, the secondary heat recovery mechanism includes a pressurized hot water pump 17, a hot water pressure relief tank 18 and a steam gas-liquid separator 19. The water inlet on the pressurized hot water pump 17 is connected to the water inlet pipe on the pressurized hot water tank 16 that is not connected to the guide pipe 7. The water outlet of the pressurized hot water pump 17 is connected to the water inlet on the hot water pressure relief tank 18. The water outlet on the hot water pressure relief tank 18 is connected to the water inlet on the steam gas-liquid separator 19. The water outlet on the steam gas-liquid separator 19 is connected to the water inlet pipe on the pressurized hot water tank 16. The top of the steam gas-liquid separator 19 is provided with a steam outlet 20. The steam outlet The steam inlet of the steam compressor is connected at 20, and the pressurized hot water tank 16, the pressurized hot water pump 17, the hot water pressure relief tank 18, the steam gas-liquid separator 19 and the steam compressor constitute a low-pressure steam preparation system. The negative pressure generated by the steam compressor inlet is used to flash the pressurized hot water in the hot water pressure relief tank 18, and the obtained steam enters the steam gas-liquid separator 19. After gas-liquid separation, the separated water flows back to the pressurized hot water tank 16, and the steam enters the steam compressor for compression to generate steam suitable for cold rolling pickling. The pickling condensate after use is returned to the heating tank 15 for circulating heating.
[0023] The working principle of this bell-type furnace waste heat recovery device is: The high-temperature flue gas first passes through the heat exchange chamber 1, and the heat energy is transferred to the water through the fins and the heat exchange tubes 3. Hot water with different temperatures is obtained by dividing into multiple rows of heat exchange tubes 3. The normal-pressure hot water obtained, the lower temperature part is directly used to heat the pickling condensate, and the higher temperature part is further pressurized and upgraded to pressurized high-temperature hot water by the pressurized hot water pump 17. Through the pressure and temperature increase effect of the steam compressor, it can convert liquid water into steam with a certain amount of energy. The generated steam is directly used in the pickling process to preheat the hydrochloric acid solution. The high heat of the steam can quickly increase the temperature of the hydrochloric acid solution and improve the pickling efficiency.
[0024] When valve one 10 and valve two 11 are closed, the water in the heat exchange tube 3 can flow back and forth between the heat exchange tube 3 and the heat transfer tube 3, increasing the time the water is heated by the flue gas, thereby increasing the temperature of the obtained water. When the output end of the drive cylinder 14 is shortened, the pulling frame 13 is pulled to move, so that the guide plate 12 extends along the slide groove 6 between the two adjacent rows of heat exchange tubes 3, increasing the contact time between the flue gas and the fins and the heat exchange tube 3, and further recovering the heat of the flue gas.
[0025] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A bell-type furnace waste heat recovery device, comprising a flue gas duct, wherein the flue gas duct is connected to a smoke exhaust port on the bell-type furnace, and is characterized in that: Also includes: A flue gas heat exchange mechanism, wherein the flue gas in the bell-type furnace is introduced into the flue gas heat exchange mechanism through the flue gas pipeline, and the flue gas heat exchange mechanism is connected with a primary heat recovery mechanism and a secondary heat recovery mechanism, and the flue gas heat exchange mechanism is used to absorb the heat in the flue gas into water and output water containing different amounts of heat respectively; Wherein, the flue gas heat exchange mechanism comprises: A heat exchange frame, wherein the heat exchange frame is provided with a heat exchange chamber (1) and a flow diversion chamber (2), two flow diversion chambers (2) are provided, and the two flow diversion chambers (2) are respectively provided on both sides of the heat exchange chamber (1); A flow diversion component, wherein two flow diversion components are provided, and the two flow diversion components are respectively arranged in the two flow diversion bins (2), and a plurality of heat exchange tubes (3) are connected to the flow diversion component, and the flow diversion component is used to adjust the flow direction of water in the heat exchange tubes (3); The primary heat recovery mechanism is connected to the two diversion components, and the primary heat recovery mechanism is used to recover the water output from the flue gas heat exchange mechanism. The primary heat recovery mechanism and one of the diversion components are both connected to the secondary heat recovery mechanism, and the secondary heat recovery mechanism is used for secondary recovery of water output from the flue gas heat exchange mechanism.
2. The bell-type furnace waste heat recovery device according to claim 1, characterized in that: The heat exchange frame is provided with: A smoke inlet (4), the smoke inlet (4) being disposed at the bottom of the heat exchange frame, the smoke inlet (4) being connected to the heat exchange chamber (1), and the smoke duct being connected to the smoke inlet (4); A smoke outlet (5), the smoke outlet (5) being disposed on the top of the heat exchange frame, and the smoke outlet (5) being connected to the heat exchange chamber (1); A chute (6), wherein a plurality of chute (6) are provided, and the plurality of chute (6) are respectively opened on both sides of the heat exchange chamber (1), and the chute (6) is arranged between two adjacent rows of the heat exchange tubes (3); A flow guide component, the flow guide component is slidably arranged on the slide groove (6), and the flow guide component is used to guide the flow of smoke in the heat exchange chamber (1).
3. The bell-type furnace waste heat recovery device according to claim 2, characterized in that: The diversion component comprises: A flow guide pipe (7), wherein a plurality of the flow guide pipes (7) are provided, and the plurality of the flow guide pipes (7) are fixedly connected to the diversion chamber (2); A flow guide pipe 2 (8), wherein a plurality of the flow guide pipes 2 (8) are provided, and each of the flow guide pipes 1 (7) is connected to a plurality of the flow guide pipes 2 (8), and the flow guide pipes 2 (8) are fixedly connected in the diversion chamber (2); A flow guide pipe three (9), each of the flow guide pipes two (8) is fixedly connected to the flow guide pipe three (9), the two ends of the flow guide pipe two (8) are respectively connected to the two ends of the flow guide pipe three (9), the flow guide pipe three (9) is fixedly connected in the diversion chamber (2), and a plurality of the heat exchange tubes (3) are fixedly connected to the flow guide pipe three (9) at equal intervals.
4. The bell-type furnace waste heat recovery device according to claim 3, characterized in that: The heat exchange tube (3) connected to the same guide tube three (9) is transversely arranged in the heat exchange chamber (1), and the two ends of the guide tube are respectively connected to the corresponding guide tube three (9) in the two diversion assemblies, and a plurality of fins are fixedly connected to the heat exchange tube (3) connected to the same guide tube three (9).
5. The bell-type furnace waste heat recovery device according to claim 4, characterized in that: The flow guide pipe 2 (8) is fixedly connected to a valve 1 (10), the flow guide pipe 3 (9) is fixedly connected to a plurality of valve 2s (11), the valve 2 (11) is arranged between two adjacent heat exchange pipes (3), and two heat exchange pipes (3) are arranged between two adjacent valve 2s (11).
6. The bell-type furnace waste heat recovery device according to claim 5, characterized in that: The plurality of valves 2 (11) provided on the guide pipe 3 (9) connected to both ends of the heat exchange pipe (3) are arranged in a staggered manner.
7. The bell-type furnace waste heat recovery device according to claim 6, characterized in that: The flow guide assembly comprises: A guide plate (12), wherein a plurality of guide plates (12) are provided, and the guide plates (12) are slidably connected in the slide groove (6); A pulling frame (13), a plurality of pulling frames (13) being fixedly connected to the pulling frame (13), two pulling frames (13) being provided, a plurality of driving cylinders (14) being fixedly connected to the two pulling frames (13), output ends of the driving cylinders (14) being connected to the heat exchange frame, the two pulling frames (13) being respectively provided on two sides of the heat exchange frame, and the guide plates (12) on the two pulling frames (13) being arranged in a staggered manner.
8. The bell-type furnace waste heat recovery device according to claim 7, characterized in that: The primary heat recovery mechanism comprises: A heating groove (15), in the diversion assembly close to the heating groove (15), the guide pipe one (7) close to the smoke outlet (5) extends into the heating groove (15), and the guide pipe one (7) passes through the heating groove (15) and is connected to a plurality of guide pipes one (7) in another diversion assembly; A pressurized hot water tank (16), wherein two water inlet pipes and two water outlet pipes are provided on the pressurized hot water tank (16); in the diversion assembly close to the pressurized hot water tank (16), the guide pipe one (7) close to the smoke inlet (4) is connected to one of the water inlet pipes on the pressurized hot water tank (16); and one of the water outlet pipes is connected to a plurality of the guide pipes one (7) in another diversion assembly.
9. The bell-type furnace waste heat recovery device according to claim 8, characterized in that: The secondary heat recovery mechanism comprises: A pressurized hot water pump (17), wherein a water inlet on the pressurized hot water pump (17) is connected to the water inlet pipe on the pressurized hot water tank (16) that is not connected to the guide pipe 1 (7); A hot water pressure relief tank (18), wherein the water outlet of the pressurized hot water pump (17) is connected to the water inlet on the hot water pressure relief tank (18); A steam gas-liquid separator (19), wherein the water outlet on the hot water pressure relief tank (18) is connected to the water inlet on the steam gas-liquid separator (19), and the water outlet on the steam gas-liquid separator (19) is connected to the water inlet pipe on the pressurized hot water tank (16).
10. The bell-type furnace waste heat recovery device according to claim 9, characterized in that: The top of the steam gas-liquid separator (19) is provided with a steam outlet (20).