An environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device and its working method

Abstract

The present invention relates to the technical field of waste heat recovery devices, and specifically relates to an environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device and its working method, including a main body. A butt joint pipe is welded on one side of the main body. A switching mechanism is arranged inside the main body. A plurality of energy storage mechanisms with different specifications are arranged inside the switching mechanism. The bottom end of the main body is connected with a circulation mechanism. The circulation mechanism is communicated with the energy storage mechanism. The bottom end of the energy storage mechanism is connected with a pop-up mechanism. An overhaul mechanism is arranged on one side of the main body. A temperature sensor is installed inside the butt joint pipe. Through the setting of the switching mechanism, it is convenient to transfer the corresponding exchange box into the butt joint pipe for heat exchange energy storage. The size specifications of the through pipes arranged on different exchange boxes are different, so it is convenient to switch different exchange boxes for use according to the flue gas temperature. The use is more flexible, and the heat of flue gas with different temperatures can be stored to the maximum extent. The versatility is higher and the energy storage conversion is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of waste heat recovery devices, and specifically relates to an environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device and its working method. Background Art

[0002] When industrial furnaces produce components such as steel structures, a large amount of heat is generated by the combustion of heat sources such as coal or the conversion of electrical energy, which is used to melt materials into base materials. While the industrial furnace is operating using heat, a large amount of high-temperature flue gas is generated, and the flue gas contains a large amount of heat. To increase the efficiency of enterprises, a special waste heat recovery device is generally used to recover and utilize the high temperature.

[0003] However, industrial furnaces will formulate different production processes according to different products, and the heating temperatures in each time period are also different, so the temperatures of the discharged flue gas will also vary. The heat exchange components of traditional heat energy recovery devices are of fixed size, and the same components are used for heat exchange and energy storage regardless of the temperature of the flue gas. They cannot switch to corresponding heat exchange components with targeted optimization according to the flue gas temperature, are not flexible enough to use, and cannot take corresponding measures to maximize energy storage according to the flue gas temperature. The waste heat recovery conversion rate is low and the function is single. Therefore, there is an urgent need to propose an environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device and its working method. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides an environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device and its working method.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device, including a main body. One side of the main body is welded with a docking pipe. A switching mechanism is arranged inside the main body. A plurality of energy storage mechanisms with different specifications are arranged inside the switching mechanism. The bottom end of the main body is connected with a circulation mechanism. The circulation mechanism is communicated with the energy storage mechanism. The bottom end of the energy storage mechanism is connected with a pop-up mechanism. An overhaul mechanism is arranged on one side of the main body. A temperature sensor is installed inside the docking pipe.

[0006] Specifically, the switching mechanism includes a chassis. The chassis is rotatably connected inside the main body, and a top plate is rotatably connected inside the main body. The top plate is located above the chassis. A first rotating shaft is fixedly connected between the top plate and the chassis. A reduction gearbox is installed at the top end of the main body. A driving motor is installed at the top end of the reduction gearbox. The driving motor is connected to the input end of the reduction gearbox. The first rotating shaft is connected to the output end of the reduction gearbox. The driving motor drives the first rotating shaft to rotate through the reduction gearbox.

[0007] Specifically, the energy storage mechanism includes a connecting column, a plurality of connecting columns are rotatably connected between the top plate and the bottom plate, an exchange box is fixedly connected to the connecting column, a plurality of through-tubes are welded to the exchange box, and the through-tubes on different exchange boxes have different sizes and specifications, a plurality of C-shaped partition plates are connected between the top plate and the bottom plate, and a dispersion plate is provided near the bottom end of the exchange box.

[0008] Specifically, the energy storage mechanism also includes a first connecting head, which is rotatably connected to the connecting column near the top end, one end of which is connected to a return pipe, a first connecting groove is provided inside the connecting column, and the first connecting head is connected to the exchange box through the first connecting groove, and a second connecting head is rotatably connected to the connecting column near the bottom end, one end of which is connected to a supply pipe, a second connecting groove is provided inside the connecting column, and the second connecting head is connected to the exchange box through the second connecting groove, and the return pipe and the supply pipe respectively pass through the partition plate.

[0009] Specifically, the circulation mechanism includes a first connecting ring, the bottom end of the top plate is fixedly connected with the first connecting ring, the first connecting ring is connected with a plurality of return pipes, a first movable connecting cover and a second movable connecting cover are rotatably installed on the bottom side of the main body, a first connecting pipe is connected between the first connecting ring and the first movable connecting cover, a second connecting ring is provided at the top end of the bottom plate, the second connecting ring is connected with a plurality of supply pipes, and a second connecting pipe is connected between the second connecting ring and the second movable connecting cover.

[0010] Specifically, the circulation mechanism also includes a drain pipe, the bottom end of the first movable connecting cover is connected to the drain pipe, the bottom end of the second movable connecting cover is connected to the delivery pipe, an electromagnetic valve and a circulation pipe are installed between the drain pipe and the delivery pipe, and a second electromagnetic valve is installed on the reflux pipe and the supply pipe respectively.

[0011] Specifically, the pop-up mechanism includes a slot plate, a slot plate is provided at the bottom end of the chassis, the slot plate is fixedly connected to the inner wall of the main body, a plurality of rotating wheels are rotatably connected to the inside of the slot plate, a connecting shaft is rotatably connected to the rotating wheel, a sliding rod is fixedly connected to the connecting shaft, the sliding rod and the chassis are slidably connected, one end of the sliding rod is fixedly connected to a rack, the bottom end of the connecting column is slidably connected to a sliding sleeve, a pin is provided between the sliding sleeve and the connecting column, a tension spring is wound on the pin, one end of the pin is inserted into the interior of the connecting column, the bottom end of the sliding sleeve is fixedly connected to a gear, and the gear and the rack are meshed.

[0012] Specifically, the inspection mechanism comprises a sealing slide plate, a side of the main body facing away from the butt pipe is slidably connected with the sealing slide plate, and a handle is mounted on the sealing slide plate.

[0013] Specifically, an environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device and its working method include the following steps:

[0014] S1: First, connect the docking pipe to the high-temperature flue gas discharge pipe, and at the same time connect the drain pipe and the conveying pipe to the corresponding pipelines;

[0015] S2: Then, according to the temperature value detected by the temperature sensor, start the drive motor to drive the corresponding exchange box to move into the interior of the docking pipe. The size specifications of the through pipes inside different exchange boxes are different, and the appropriate exchange box can be transferred according to the flue gas temperature for sufficient waste heat recovery energy storage, making the use more flexible;

[0016] S3: Then, the groove plate acts to push the sliding rod, driving the rack to engage with the gear. The gear drives the exchange box to rotate through the connecting column, so that the exchange box deflects into the interior of the docking pipe, and the heat exchange between the exchange box and the high-temperature flue gas is more sufficient, and the heat absorption and energy storage effect is better;

[0017] S4: Low-temperature water is transported to the interior of the corresponding exchange box by components such as the conveying pipe, and then the heated water is discharged uniformly through the conveying pipe. While different exchange boxes deflect and absorb heat, the corresponding second solenoid valves control the water circuit to cut off and circulate inside the corresponding exchange box;

[0018] S5: When the exchange box moves into the interior of the docking pipe, the grooved wheel drives the connecting column to rotate at an appropriate angle through multiple components, so that the exchange box deflects to the outside of the main body and moves into the middle of the docking pipe, and the waste heat absorption effect is better.

[0019] The beneficial effects of the present invention are:

[0020] (1) For the environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device and its working method of the present invention, through the setting of the switching mechanism, it is convenient to transfer the corresponding exchange box into the interior of the docking pipe for heat exchange energy storage. The size specifications of the through pipes provided on different exchange boxes are different, so it is convenient to switch different exchange boxes according to the flue gas temperature for use, making the use more flexible, being able to store the heat of different heat flue gases to the greatest extent, having higher versatility and higher energy storage conversion.

[0021] (2) For the environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device and its working method of the present invention, the water circulation of different exchange boxes is realized by the same root conveying pipe and drain pipe. When the current exchange box moves into the interior of the docking pipe, the corresponding two second solenoid valves start to open to realize the water circulation and heat storage work. When switching the use of different exchange boxes to the corresponding circulating water paths, there is no need to switch the connecting circulating water paths back and forth, and the use effect is better.

[0022] (3) The environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device and its working method described in the present invention. Multiple partition plates separate multiple exchange boxes from each other and insulate them from each other. When it is necessary to repair one of the exchange boxes, the exchange box can be switched to a position close to the sealing slide plate, the sealing slide plate is opened, and at the same time, the connection between the gear and the rack is released through a bolt, and the exchange box is transferred to the outside of the main body for repair. The repair is simpler. When repairing the current exchange box, it does not affect the operation of the other exchange boxes, realizing repair without shutting down the machine, avoiding affecting the use of the device and interrupting the waste heat recovery process, and further improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the drawings and embodiments.

[0024] Figure 1 It is a schematic structural diagram of the overall structure of a preferred embodiment of the environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device and its working method provided by the present invention;

[0025] Figure 2 is Figure 1 a schematic connection structure diagram of the switching mechanism and the energy storage mechanism shown;

[0026] Figure 3 is Figure 2 a schematic connection structure diagram of the switching mechanism, the energy storage mechanism and the circulation mechanism shown;

[0027] Figure 4 is Figure 3 a schematic connection structure diagram of the energy storage mechanism, the ejection mechanism and the repair mechanism shown;

[0028] Figure 5 is Figure 4 a schematic connection structure diagram of the groove plate, the runner and the connecting shaft shown;

[0029] Figure 6 It is a flowchart of the environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device and its working method provided by the present invention.

[0030] In the figure: 1. Main body; 2. Docking pipe; 3. Switching mechanism; 31. Chassis; 32. Top plate; 33. First rotating shaft; 34. Reduction gearbox; 35. Driving motor; 4. Energy storage mechanism; 41. Connecting column; 42. Exchange box; 43. Through pipe; 44. Partition plate; 45. Uniform dispersion plate; 46. Return pipe; 47. First connection head; 48. First communication groove; 49. Supply pipe; 491. Second connection head; 492. Second communication groove; 5. Circulation mechanism; 51. First connection ring; 52. First movable connection cover; 53. First connection pipe; 54. Drain pipe; 55. Second connection ring; 56. Second movable connection cover; 57. Second connection pipe; 58. Delivery pipe; 59. First solenoid valve; 591. Circulation pipe; 592. Second solenoid valve; 6. Ejection mechanism; 61. Grooved plate; 62. Slide bar; 63. Runner; 64. Connecting shaft; 65. Rack; 66. Slide sleeve; 67. Gear; 68. Bolt; 69. Tension spring; 7. Maintenance mechanism; 71. Sealing slide plate; 72. Handle; 8. Temperature sensor. Specific implementation mode

[0031] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation modes.

[0032] As Figures 1-6 shown, an environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device of the present invention includes a main body 1, a docking pipe 2 is welded on one side of the main body 1, a switching mechanism 3 is arranged inside the main body 1, and a plurality of energy storage mechanisms 4 with different specifications are arranged inside the switching mechanism 3. The bottom end of the main body 1 is connected with a circulation mechanism 5, the circulation mechanism 5 is communicated with the energy storage mechanism 4, the bottom end of the energy storage mechanism 4 is connected with an ejection mechanism 6, a maintenance mechanism 7 is arranged on one side of the main body 1, and a temperature sensor 8 is installed inside the docking pipe 2.

[0033] Specifically, the switching mechanism 3 includes a chassis 31, the chassis 31 is rotatably connected inside the main body 1, and a top plate 32 is rotatably connected inside the main body 1. The top plate 32 is located at the top of the chassis 31. A first rotating shaft 33 is fixedly connected between the top plate 32 and the chassis 31. A reduction gearbox 34 is installed at the top of the main body 1, and a driving motor 35 is installed at the top of the reduction gearbox 34. The driving motor 35 is connected to the input end of the reduction gearbox 34, and the first rotating shaft 33 is connected to the output end of the reduction gearbox 34. The driving motor 35 drives the first rotating shaft 33 to rotate through the reduction gearbox 34; First, the conveying pipe 58 and the supply pipe 49 need to be connected to the corresponding external pipes. When hot air passes through the docking pipe 2, the temperature sensor 8 first senses the temperature and directly starts the driving motor 35. The driving motor 35 drives the first rotating shaft 33 to rotate through the reduction gearbox 34, thereby driving the top plate 32 and the chassis 31 fixedly connected thereto to rotate together. The top plate 32 and the chassis 31 drive a plurality of the connecting columns 41 to rotate synchronously inside the main body 1, so as to transfer the exchange box 42 that can best absorb the current heat-containing flue gas into the docking pipe 2.

[0034] Specifically, the energy storage mechanism 4 includes connecting columns 41. A plurality of connecting columns 41 are rotatably connected between the top plate 32 and the chassis 31. An exchange box 42 is fixedly connected to the connecting columns 41. A plurality of through pipes 43 are welded to the exchange box 42 and penetrate through the exchange box 42. The size specifications of the through pipes 43 on different exchange boxes 42 are different. A plurality of C-shaped partition plates 44 are connected between the top plate 32 and the chassis 31. A dispersion plate 45 is provided at a position near the bottom end inside the exchange box 42.

[0035] Specifically, the energy storage mechanism 4 also includes a first connector 47, the first connector 47 is rotatably connected to the position of the connecting column 41 near the top, one end of the first connector 47 is connected to the return pipe 46, a first connecting groove 48 is provided inside the connecting column 41, the first connector 47 is connected to the exchange box 42 through the first connecting groove 48, a second connector 491 is rotatably connected to the position of the connecting column 41 near the bottom, one end of the second connector 491 is connected to the supply pipe 49, a second connecting groove 492 is provided inside the connecting column 41, the second connector 491 is connected to the exchange box 42 through the second connecting groove 492, the return pipe 46 and the supply pipe 49 respectively pass through the partition plate 44; the exchange box 42 is provided with the through pipes 43 arranged in a matrix inside, the through pipes 43 pass through the exchange box 42, The flue gas passes through it, thereby rapidly heating the exchange box 42. Cold water flows from the supply pipe 49 into the second connecting head 491, and then the second connecting head 491 pours the cold water into the interior of the exchange box 42 through the second connecting groove 492. The cold water fills the interior of the exchange box 42 from the bottom to the top. The disperser plate 45 provided can help the cold water to flow evenly to various parts of the exchange box 42, and then the water level is raised. The water flow contacts the through pipe 43 to absorb a large amount of heat, and the hot water flows at the top, and then is discharged from the return pipe 46 through the first connecting groove 48 and the first connecting head 47, thereby achieving the purpose of circulating heating and energy storage. The method of replenishing the water medium from the bottom to the top utilizes the position principle of hot on top and cold on the bottom, so that the passing water is fully heated, the heat exchange is more sufficient, and the waste heat recovery effect is better.

[0036] Specifically, the circulation mechanism 5 includes a first connecting ring 51, and the bottom end of the top plate 32 is fixedly connected with the first connecting ring 51, and the first connecting ring 51 is connected to multiple reflux pipes 46. A rotating first movable connecting cover 52 and a second movable connecting cover 56 are installed on the bottom side of the main body 1, and a first connecting pipe 53 is connected between the first connecting ring 51 and the first movable connecting cover 52. A second connecting ring 55 is provided at the top of the bottom plate 31, and the second connecting ring 55 is connected to multiple supply pipes 49, and a second connecting pipe 57 is connected between the second connecting ring 55 and the second movable connecting cover 56.

[0037] Specifically, the circulation mechanism 5 further includes a drain pipe 54. The bottom end of the first movable connection cover 52 is connected to the drain pipe 54, and the bottom end of the second movable connection cover 56 is connected to a delivery pipe 58. An electromagnetic valve 59 and a circulation pipe 591 are installed between the drain pipe 54 and the delivery pipe 58. Second electromagnetic valves 592 are respectively installed on the return pipe 46 and the supply pipe 49; the water circulation of multiple exchange boxes 42 is all delivered by the same delivery pipe 58 and the drain pipe 54. The settings of the first movable connection cover 52 and the second movable connection cover 56 facilitate movable connection, and water circulation can also be realized during the rotation of the exchange box 42. When heat exchange needs to be stopped, only the first electromagnetic valve 59 needs to be activated to switch the water path, so that the water flow does not pass through the main body 1, but instead returns through the circulation pipe 591, playing a role of temporary emergency switching.

[0038] Specifically, the ejection mechanism 6 includes a groove plate 61. The groove plate 61 is provided at the bottom end of the chassis 31. The groove plate 61 is fixedly connected to the inner wall of the main body 1. A plurality of runners 63 are rotatably connected inside the groove plate 61. A connecting shaft 64 is rotatably connected to the runner 63. A sliding rod 62 is fixedly connected to the connecting shaft 64. The sliding rod 62 is slidably connected to the chassis 31. One end of the sliding rod 62 is fixedly connected to a rack 65. The bottom end of the connecting column 41 is slidably connected to a sliding sleeve 66. A latch 68 is provided between the sliding sleeve 66 and the connecting column 41. A tension spring 69 is wound around the latch 68. One end of the latch 68 is inserted into the inside of the connecting column 41. The bottom end of the sliding sleeve 66 is fixedly connected to a gear 67. The gear 67 meshes with the rack 65; to make the heat exchange effect of the exchange box 42 better, when the current exchange box 42 is moved into the inside of the docking pipe 2, at this time the sliding rod 62 is synchronously driven by the chassis 31 to rotate, and the corresponding runner 63 rolls to another position of the groove plate 61. Due to the limitation of the groove path on the groove plate 61, the sliding rod 62 is pushed. The rack 65 is fixedly connected to the sliding rod 62. The rack 65 drives the connecting column 41 to rotate at an appropriate angle through meshing with the gear 67, so that the exchange box 42 is transferred to the outside of the main body 1 and moved into the inside of the docking pipe 2, so as to be able to contact the flue gas to the greatest extent and have a better heat exchange effect. The circulating water path is mainly realized by opening a notch inside the connecting column 41, and the rotation of the exchange box 42 will not affect the water circulation.

[0039] Specifically, the maintenance mechanism 7 includes a sealing slide 71, and the sealing slide 71 is slidably connected to the side of the main body 1 away from the butt pipe 2, and a handle 72 is installed on the sealing slide 71; when it is necessary to repair a certain exchange box 42, the drive motor 35 transfers the corresponding exchange box 42 to a position close to the sealing slide 71, opens the sealing slide 71, pulls out the latch 68, so that the connecting column 41 and the sliding sleeve 66 are no longer limited, and slides the gear 67 to the bottom end so that it is no longer engaged with the rack 65. At this time, the connecting column 41 is no longer received The control of the rack 65 can directly and manually deflect the exchange box 42 to the outside of the main body 1 for observation and maintenance, which facilitates more intuitive observation and maintenance. A plurality of partition plates 44 are provided between the top plate 32 and the bottom plate 31. The partition plates 44 divide a plurality of independent spaces for the movement of the exchange boxes 42 and also serve to isolate the temperature. Therefore, when repairing a certain exchange box 42, it does not affect the heat exchange operation of another exchange box 42, thereby realizing non-stop maintenance, avoiding affecting the use of the device, avoiding interrupting the waste heat recovery process, and further improving the use effect of the device.

[0040] Specifically, an environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device and a working method thereof include the following steps:

[0041] S1: First, connect the butt joint pipe 2 to the high-temperature flue gas exhaust pipe, and at the same time connect the drain pipe 54 and the delivery pipe 58 to the corresponding pipelines;

[0042] S2: Then, according to the temperature value detected by the temperature sensor 8, the drive motor 35 is started to drive the corresponding exchange box 42 to be transferred to the inside of the docking pipe 2. The through pipes 43 in different exchange boxes 42 have different sizes and specifications. The adapted exchange box 42 can be transferred according to the flue gas temperature to fully recover the waste heat and store energy, which is more flexible to use;

[0043] S3: Then the groove plate 61 pushes the slide bar 62, driving the rack 65 to engage the gear 67, and the gear 67 drives the exchange box 42 to rotate through the connecting column 41, so that the exchange box 42 deflects to the inside of the butt pipe 2, and the heat exchange between the exchange box 42 and the high-temperature flue gas is more sufficient, and the heat absorption and energy storage effect is better;

[0044] S4: Low-temperature water is transported to the inside of the corresponding exchange box 42 by the delivery pipe 58 and other components, and then the heated water is uniformly discharged from the delivery pipe 58. While different exchange boxes 42 deflect and absorb heat, the corresponding second solenoid valve 592 controls the water path to be cut off to the inside of the corresponding exchange box 42;

[0045] S5: When the switching box 42 is transferred into the docking pipe 2, the sprocket 61 drives the connecting column 41 to rotate by an appropriate angle through a plurality of components, so that the switching box 42 deflects to the outside of the main body 1 and is transferred into the docking pipe 2, and the waste heat absorption effect is better.

[0046] When the present invention is used, it is first necessary to connect the delivery pipe 58 and the supply pipe 49 to the corresponding external pipes. When the hot gas passes through the butt joint pipe 2, the temperature sensor 8 first senses the temperature and directly starts the drive motor 35. The drive motor 35 drives the first rotating shaft 33 to rotate through the reduction box 34, thereby driving the top plate 32 and the bottom plate 31 fixedly connected thereto to rotate together. The top plate 32 and the bottom plate 31 drive the multiple connecting columns 41 to rotate synchronously inside the main body 1, so that the exchange box 42 that can best absorb the current heat and smoke can be transferred to the inside of the butt joint pipe 2; the inside of the exchange box 42 is provided with through pipes 43 arranged in a matrix, and the through pipes 43 penetrate The exchange box 42, through which the flue gas passes, can rapidly heat the exchange box 42, and cold water flows from the supply pipe 49 to the second connector 491, and then the second connector 491 pours the cold water into the interior of the exchange box 42 through the second connecting groove 492, and the cold water fills the interior of the exchange box 42 from the bottom to the top, and the uniform dispersion plate 45 can help the cold water flow evenly to all parts of the exchange box 42, and then the water level is raised, and the water flow contacts the through pipe 43 to absorb a large amount of heat, and the hot water flows at the top, and then is discharged from the return pipe 46 through the first connecting groove 48 and the first connector 47, thereby achieving the purpose of circulating heating energy storage, and replenishing from the bottom to the top. The water medium method utilizes the position principle of hot on top and cold on bottom, so that the water passing through is fully heated, the heat exchange is more complete, and the waste heat recovery effect is better; the water circulation of multiple exchange boxes 42 is transported by the same delivery pipe 58 and drain pipe 54, and the first movable connection cover 52 and the second movable connection cover 56 are provided to facilitate the movable connection. The water circulation can also be realized during the rotation of the exchange box 42. When it is necessary to stop the heat exchange, it is only necessary to start the first solenoid valve 59 to switch the water circuit so that the water flow does not pass through the main body 1, but instead returns through the circulation pipe 591, which plays a temporary emergency switching role; in order to make the heat exchange effect of the exchange box 42 better, when the current When the exchange box 42 is moved to the inside of the butt joint 2, the slide bar 62 is synchronously driven to rotate by the conveying chassis 31, and the corresponding rotating wheel 63 rolls to another position of the slot plate 61. Due to the limitation of the slot on the slot plate 61, the slide bar 62 is pushed, and the rack 65 is fixedly connected to the slide bar 62. The rack 65 drives the connecting column 41 to rotate to a suitable angle through the meshing gear 67, and the exchange box 42 is transferred to the outside of the main body 1 and moved to the inside of the butt joint 2, so that it can contact with the flue gas to the maximum extent, and the heat exchange effect is better. The circulating water circuit mainly realizes water circulation by opening a notch inside the connecting column 41, and the rotation of the exchange box 42 does not affect the water circuit circulation;When it is necessary to repair a certain switching box 42, the drive motor 35 transfers the corresponding switching box 42 to a position close to the sealing slide plate 71, opens the sealing slide plate 71, and pulls out the insertion pin 68, so that the connecting column 41 and the sliding sleeve 66 are no longer limited. Slide the gear 67 downward so that it is no longer engaged with the rack 65. At this time, the connecting column 41 is no longer controlled by the rack 65, and the switching box 42 can be directly manually deflected to the outside of the main body 1 for observation and maintenance, which facilitates more intuitive observation and maintenance. A plurality of partition plates 44 are provided between the top plate 32 and the bottom plate 31. The partition plates 44 divide a plurality of independent spaces for the movement of the switching box 42 and play a role in isolating temperature at the same time. Then, when repairing a certain switching box 42, it does not affect the heat exchange operation of another switching box 42, thus realizing maintenance without stopping the machine, avoiding affecting the use of the device, avoiding interrupting the waste heat recovery process, and further improving the use effect of the device.

[0047] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0048] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device, characterized in that, The device comprises a main body (1), a butt-joint pipe (2) is welded to one side of the main body (1), a switching mechanism (3) is provided inside the main body (1), a plurality of energy storage mechanisms (4) of different specifications are provided inside the switching mechanism (3), a circulation mechanism (5) is connected to the bottom end of the main body (1), the circulation mechanism (5) and the energy storage mechanism (4) are in communication, a pop-up mechanism (6) is connected to the bottom end of the energy storage mechanism (4), a maintenance mechanism (7) is provided on one side of the main body (1), and a temperature sensor (8) is installed inside the butt-joint pipe (2); The switching mechanism (3) comprises a chassis (31), the interior of the main body (1) is rotatably connected to the chassis (31), and the interior of the main body (1) is rotatably connected to a top plate (32), the top plate (32) is located at the top of the chassis (31), a first rotating shaft (33) is fixedly connected between the top plate (32) and the chassis (31), a reduction box (34) is installed at the top of the main body (1), a driving motor (35) is installed at the top of the reduction box (34), the driving motor (35) is connected to the input end of the reduction box (34), the first rotating shaft (33) is connected to the output end of the reduction box (34), and the driving motor ( 35) drives the first rotating shaft (33) to rotate through the reduction box (34); the energy storage mechanism (4) comprises a connecting column (41), a plurality of connecting columns (41) are rotatably connected between the top plate (32) and the bottom plate (31), an exchange box (42) is fixedly connected to the connecting column (41), a plurality of through-tubes (43) are welded to the exchange box (42), and the through-tubes (43) on different exchange boxes (42) have different sizes and specifications, a plurality of C-shaped partition plates (44) are connected between the top plate (32) and the bottom plate (31), and a uniform dispersion plate (45) is provided near the bottom end of the exchange box (42); The ejection mechanism (6) comprises a slot plate (61), the bottom end of the base plate (31) is provided with the slot plate (61), the slot plate (61) is fixedly connected to the inner wall of the main body (1), a plurality of rotating wheels (63) are rotatably connected inside the slot plate (61), a connecting shaft (64) is rotatably connected to the rotating wheel (63), a sliding rod (62) is fixedly connected to the connecting shaft (64), the sliding rod (62) is slidably connected to the base plate (31), and the sliding rod (62) is slidably connected to the base plate (31). One end of the connecting column (42) is fixedly connected to a rack (65), the bottom end of the connecting column (41) is slidably connected to a sliding sleeve (66), a latch (68) is provided between the sliding sleeve (66) and the connecting column (41), a tension spring (69) is wound around the latch (68), one end of the latch (68) is inserted into the interior of the connecting column (41), the bottom end of the sliding sleeve (66) is fixedly connected to a gear (67), and the gear (67) and the rack (65) are meshed; The inspection mechanism (7) comprises a sealing slide plate (71), and a side of the main body (1) facing away from the butt pipe (2) is slidably connected to the sealing slide plate (71), and a handle (72) is mounted on the sealing slide plate (71).

2. An environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device according to claim 1, characterized in that, The energy storage mechanism (4) further includes a first connector (47). The first connector (47) is rotatably connected to a position near the top end of the connecting column (41). One end of the first connector (47) is connected to a return pipe (46). A first communication groove (48) is formed inside the connecting column (41). The first connector (47) is communicated with the exchange box (42) through the first communication groove (48). A second connector (491) is rotatably connected to a position near the bottom end of the connecting column (41). One end of the second connector (491) is connected to a supply pipe (49). A second communication groove (492) is formed inside the connecting column (41). The second connector (491) is communicated with the exchange box (42) through the second communication groove (492). The return pipe (46) and the supply pipe (49) respectively penetrate through the partition plate (44).

3. An environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device according to claim 2, characterized in that, The circulation mechanism (5) includes a first connection ring (51). The first connection ring (51) is fixedly connected to the bottom end of the top plate (32). The first connection ring (51) is communicated with a plurality of return pipes (46). A rotating first movable connection cover (52) and a second movable connection cover (56) are installed on the bottom side inside the main body (1). A first connection pipe (53) is communicated between the first connection ring (51) and the first movable connection cover (52). A second connection ring (55) is provided at the top end of the bottom plate (31). The second connection ring (55) is communicated with a plurality of supply pipes (49). A second connection pipe (57) is communicated between the second connection ring (55) and the second movable connection cover (56).

4. An environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device according to claim 3, characterized in that, The circulation mechanism (5) further includes a drain pipe (54). The drain pipe (54) is connected to the bottom end of the first movable connection cover (52). A delivery pipe (58) is connected to the bottom end of the second movable connection cover (56). An electromagnetic valve (59) and a circulation pipe (591) are installed between the drain pipe (54) and the delivery pipe (58). Second electromagnetic valves (592) are respectively installed on the return pipe (46) and the supply pipe (49).

5. The working method of an environmentally friendly and energy-saving industrial high-temperature flue gas waste heat recovery device according to claim 4 includes the following steps: S1: First, connect the docking pipe (2) to the high-temperature flue gas discharge pipe, and at the same time connect the drain pipe (54) and the delivery pipe (58) to the corresponding pipelines; S2: Then, according to the temperature value detected by the temperature sensor (8), start the drive motor (35) to drive the corresponding exchange box (42) to move into the docking pipe (2). The size specifications of the through pipes (43) inside different exchange boxes (42) are different, and the appropriate exchange box (42) can be transferred according to the flue gas temperature for sufficient waste heat recovery energy storage, making it more flexible to use; S3: Then the groove plate (61) acts to push the slide bar (62), driving the rack (65) to engage with the gear (67). The gear (67) drives the exchange box (42) to rotate through the connecting column (41). Then the exchange box (42) deflects into the interior of the docking pipe (2), and the heat exchange between the exchange box (42) and the high-temperature flue gas is more sufficient, and the heat absorption and energy storage effect is better. S4: The low-temperature water is transported to the interior of the corresponding exchange box (42) through the delivery pipe (58). After that, the heated water is discharged uniformly through the delivery pipe (58). While different exchange boxes (42) deflect and absorb heat, the corresponding second solenoid valve (592) controls the water circuit to cut off the circulation to the interior of the corresponding exchange box (42). S5: When the exchange box (42) is transferred to the interior of the docking pipe (2), the groove plate (61) drives the connecting column (41) to rotate at a suitable angle through multiple components, so that the exchange box (42) deflects to the outside of the main body (1) and is transferred to the middle of the docking pipe (2), and the waste heat absorption effect is better.

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