A flue gas recirculation flow guide

Abstract

The utility model relates to gas flow guide technical field discloses a kind of flue gas recirculation flow guide device, including connecting plate, the bottom of the connecting plate is fixedly connected with bottom frame, the top of the connecting plate is provided with flow guide mechanism, the flow guide mechanism is used to the high efficiency of entering flue gas is changed direction flow guide, the bottom of the bottom frame is provided with quick-release support mechanism, the quick-release support mechanism is used for the fixation and quick disassembly of flow guide device, the flow guide mechanism includes upper filter frame, the bottom of the upper filter frame is fixedly connected in the top of connecting plate, the outer wall left and right sides of the upper filter frame are provided with side pipe assembly, the outer wall top of the upper filter frame is fixedly connected with emergency air outlet, the outer wall front side of the upper filter frame is provided with pressure measurement component.In the utility model, the upper side of device is provided with flow guide mechanism, can be with different diameter, different type flue gas pipeline Realization quick docking.

Description

Technical Field

[0001] This utility model relates to the field of gas flow guidance technology, and in particular to a flue gas recirculation flow guidance device. Background Technology

[0002] Flue gas recirculation guiding devices are used in industrial production and energy utilization equipment to guide, divert, and recirculate flue gas. They are installed in the flue gas emission pipes and recirculation paths of boiler combustion equipment. The core structure includes guide vanes and adjustment mechanisms. Through specific flow channel design and component cooperation, a portion of the high-temperature flue gas is guided back to the combustion zone along a preset path, realizing the recycling and directional transportation of flue gas. It is a functional device that constitutes a flue gas recirculation system.

[0003] In industrial production processes, flue gas recirculation guiding devices can precisely control the flow rate and direction of recirculated flue gas, adjust the temperature field distribution in the combustion zone, and reduce the generation of harmful nitrogen oxides, thereby effectively improving the environmental performance of combustion equipment. Reasonable flue gas guidance can also improve fuel combustion efficiency, reduce heat loss, and help the equipment achieve energy-saving operation. The device can also stabilize the flow state of flue gas in the pipeline, avoid pipeline vibration and wear caused by airflow turbulence, and extend the service life of the equipment.

[0004] Currently, flue gas recirculation diversion devices on the market adopt a fixed structural design. The angle of the diversion blades and the size of the flow channel are difficult to adjust flexibly according to the actual pipe diameter and direction. As a result, the same device can only match pipes of specific specifications, which cannot meet the diverse pipe layout requirements in different industrial scenarios. For complex pipe systems with branch paths and variable diameter sections, existing devices are unable to achieve precise distribution and diversion of flue gas among multiple paths, which can easily lead to problems such as excessive local airflow resistance and uneven flow distribution, thus limiting their application range in complex working conditions. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a flue gas recirculation guide device, which aims to improve the problem that the existing technology is difficult to adapt to different flue gas paths.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a flue gas recirculation guide device, including a connecting plate, a bottom frame fixedly connected to the bottom of the connecting plate, a guide mechanism provided at the top of the connecting plate, the guide mechanism being used to efficiently guide the incoming flue gas, and a quick-release support mechanism provided at the bottom of the bottom frame, the quick-release support mechanism being used to fix the guide device and to quickly assemble and disassemble it.

[0007] The airflow guiding mechanism includes an upper filter frame, the bottom of which is fixedly connected to the top of a connecting plate. Side pipe assemblies are provided on both the left and right sides of the outer wall of the upper filter frame. An emergency air vent is fixedly connected to the top of the outer wall of the upper filter frame. A pressure measuring assembly is provided on the front side of the outer wall of the upper filter frame. A blower housing is fixedly connected to the top of the upper filter frame. An air inlet is fixedly connected inside the blower housing. A blower motor is fixedly connected to the top of the blower housing. A side fixing assembly is provided on the outer wall of the blower housing. An air outlet is opened on the front side of the outer wall of the blower housing. A left air inlet assembly is provided on the left side of the outer wall of the blower housing. A replacement pipe is provided on the left side of the left air inlet assembly.

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

[0009] The quick-release support mechanism includes an upper horizontal frame, the inner wall of which is fixedly connected to the outer wall of the connecting plate. Multiple upper frames are fixedly connected to the bottom of the upper horizontal frame. A central reinforcing rib is fixedly connected between adjacent upper frames. Quick-release bolts are fixedly connected to the bottom of the upper frames. Multiple lower frames are fixedly connected to the bottom of the quick-release bolts. A lower horizontal frame is fixedly connected to the top of the lower frames. A bottom fixing component is provided on the front side of the lower horizontal frame. A bottom reinforcement component is provided at the bottom of each of the lower frames.

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

[0011] Both of the side pipe assemblies include side pipe connecting keys, and the two side pipe connecting keys are respectively fixedly connected to the left and right sides of the outer wall of the upper filter frame. The two side pipe connecting keys that are far apart from each other are fixedly connected to side pipe fixing pieces.

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

[0013] The pressure measuring component includes a front connecting key, the rear side of which is fixedly connected to the front side of the outer wall of the upper filter frame, and a pressure gauge is fixedly connected to the front side of the front connecting key.

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

[0015] The side fixing assembly includes a side connecting key, the front side of which is fixedly connected to the rear side of the outer wall of the blower housing, and a fixing rod passes through the top of the side connecting key.

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

[0017] The left air intake assembly includes a left connecting key. The right side of the left connecting key is fixedly connected to the left side of the outer wall of the blower housing, and the left side of the left connecting key is fixedly connected to a left pipe fixing plate.

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

[0019] The bottom fixing assembly includes a bottom connecting piece, the rear side of which is fixedly connected to the front side of the lower crossbeam, and a fixing connecting rod is fixedly connected to the rear side of the bottom connecting piece.

[0020] As a further description of the above technical solution:

[0021] The bottom reinforcement assembly includes a bottom bolt, the top of which is rotatably connected to the bottom of the lower frame, and a bottom grounding plate is fixedly connected to the bottom of the bottom bolt.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, a flow guiding mechanism is provided on the upper side of the device. The flow guiding mechanism has a structure with adjustable connecting parts of multiple specifications, which can quickly connect with flue gas pipes of different diameters and types. This changes the limitation of existing devices that can only adapt to specific pipes, and allows the same device to be flexibly installed in different flue gas passages. Whether it is a straight main pipe, a branch pipe or a variable diameter pipe, it can be effectively adapted through the adaptive adjustment of the flow guiding mechanism. This significantly improves the adaptability of the device to diverse industrial scenarios and reduces the equipment replacement cost caused by differences in pipe specifications.

[0024] 2. In this utility model, the bottom of the device is equipped with a convenient disassembly and assembly support frame, which adopts a bolt quick connection structure to achieve a stable assembly with the main body of the device. By replacing the support components of different heights, the overall height of the device can be quickly and freely adjusted. When it is necessary to inspect the internal components of the device, the height adjustment can be completed without the aid of complicated tools, which simplifies the maintenance process, shortens the downtime maintenance time, improves the operation and maintenance efficiency of the equipment, and also provides a flexible layout scheme for scenarios with different installation space heights. Attached Figure Description

[0025] Figure 1 This is a perspective view of a flue gas recirculation guiding device proposed in this utility model.

[0026] Figure 2 This is a front view of a flue gas recirculation guiding device proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the flow guiding mechanism in a flue gas recirculation flow guiding device proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the blower housing in a flue gas recirculation guiding device proposed in this utility model.

[0029] Figure 5 This is a structural schematic diagram of the quick-release support mechanism in a flue gas recirculation guide device proposed in this utility model.

[0030] Legend:

[0031] 1. Connecting plate; 2. Base frame; 3. Airflow guiding mechanism; 31. Upper filter frame; 32. Side duct assembly; 321. Side duct connection key; 322. Side duct fixing plate; 33. Emergency air vent; 34. Pressure measuring assembly; 341. Front connection key; 342. Pressure gauge; 35. Blower housing; 36. Air inlet; 37. Blower motor; 38. Side fixing assembly; 381. Side connection key; 382. Fixing rod; 39. Air outlet; 310. Left air intake assembly; 3101. Left connecting key; 3102. Left duct fixing plate; 311. Replacement duct; 4. Quick-release support mechanism; 41. Upper crossbeam; 42. Upper frame; 43. Middle reinforcing rib; 44. Quick-release bolt; 45. Lower frame; 46. Lower crossbeam; 47. Bottom fixing assembly; 471. Bottom connecting plate; 472. Fixed connecting rod; 48. Bottom reinforcement assembly; 481. Bottom bolt; 482. Bottom grounding plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model is provided: a flue gas recirculation guide device, including a connecting plate 1, a bottom frame 2 fixedly connected to the bottom of the connecting plate 1, a guide mechanism 3 provided at the top of the connecting plate 1, the guide mechanism 3 being used to efficiently guide the incoming flue gas, and a quick-release support mechanism 4 provided at the bottom of the bottom frame 2, the quick-release support mechanism 4 being used to fix the guide device and to quickly assemble and disassemble it.

[0034] The flow guiding mechanism 3 includes an upper filter frame 31, the bottom of which is fixedly connected to the top of the connecting plate 1. Side pipe assemblies 32 are provided on both the left and right sides of the outer wall of the upper filter frame 31. An emergency air vent 33 is fixedly connected to the top of the outer wall of the upper filter frame 31. A pressure measuring assembly 34 is provided on the front side of the outer wall of the upper filter frame 31. A blower housing 35 is fixedly connected to the top of the upper filter frame 31. An air inlet 36 is fixedly connected inside the blower housing 35. A blower motor 37 is fixedly connected to the top of the blower housing 35. A side fixing assembly 38 is provided on the outer wall of the blower housing 35. An air outlet 39 is opened on the front side of the outer wall of the blower housing 35. A left air inlet assembly 310 is provided on the left side of the outer wall of the blower housing 35. A replacement pipe 311 is provided on the left side of the left air inlet assembly 310.

[0035] Specifically, the connecting plate 1 is horizontally set, and its bottom is fixedly connected to the top of the bottom frame 2. The bottom frame 2 has a frame structure, which provides stable support for the connecting plate 1 and the components above it. The top of the connecting plate 1 is connected to the bottom of the flow guiding mechanism 3. The flow guiding mechanism 3 is located above the connecting plate 1. The bottom of the bottom frame 2 is equipped with a quick-release support mechanism 4. The top of the quick-release support mechanism 4 is fixed to the bottom of the bottom frame 2, and the bottom is in contact with the mounting surface.

[0036] The upper filter frame 31 in the flow guiding mechanism 3 has a hollow cavity structure. Its bottom edge is fixedly connected to the top edge of the connecting plate 1. The interior of the upper filter frame 31 can perform preliminary filtration of flue gas. The left and right sides of the outer wall of the upper filter frame 31 are respectively connected to one end of the side pipe assembly 32. The side pipe assembly 32 extends outward along the horizontal direction of the upper filter frame 31 and can be connected to external flue gas pipes of different specifications, so that the flue gas can enter the interior of the upper filter frame 31 through the side pipe assembly 32.

[0037] The emergency vent 33 is located at the top center of the outer wall of the upper filter frame 31. Its bottom is fixedly connected to the top of the upper filter frame 31, and its internal channel is connected to the internal cavity of the upper filter frame 31. When the internal pressure of the device is abnormal, the flue gas can be discharged through the emergency vent 33. The pressure measuring component 34 is installed in the middle of the front side of the outer wall of the upper filter frame 31. Its detection end extends into the interior of the upper filter frame 31 and can monitor the flue gas pressure inside the upper filter frame 31 in real time.

[0038] The blower housing 35 is a hollow column, with its bottom fixedly connected to the top center of the upper filter frame 31, forming a flue gas flow channel inside. The air inlet 36 is located inside the lower part of the blower housing 35 and is fixedly connected to the inner wall of the blower housing 35, allowing external flue gas to enter the interior of the blower housing 35 through the air inlet 36. The blower motor 37 is fixed at the top center of the blower housing 35, with its output shaft extending into the interior of the blower housing 35, driving internal components to operate and promote flue gas flow.

[0039] Side fixing components 38 are symmetrically distributed on the left and right sides of the outer wall of the blower housing 35. One end of each component is fixedly connected to the outer wall of the blower housing 35, and the other end can be connected to an external pipe to enhance the installation stability of the blower housing 35. The air outlet 39 is located on the upper front side of the outer wall of the blower housing 35 and communicates with the internal channel of the blower housing 35. The treated flue gas can be discharged through the air outlet 39. The left air inlet component 310 is installed on the lower left side of the outer wall of the blower housing 35, below the side fixing components 38. One end of each component is fixedly connected to the outer wall of the blower housing 35, and the internal channel communicates with the interior of the blower housing 35. The right end of the replacement pipe 311 is connected to the left end of the left air inlet component 310. The replacement pipe 311 can be replaced with pipes of different lengths according to actual needs to adapt to different flue gas conveying paths.

[0040] Reference Figure 1 , Figure 2 and Figure 5 The quick-release support mechanism 4 includes an upper horizontal frame 41, the inner wall of which is fixedly connected to the outer wall of the connecting plate 1. Multiple upper frames 42 are fixedly connected to the bottom of the upper horizontal frame 41. A central reinforcing rib 43 is fixedly connected between adjacent upper frames 42. Quick-release bolts 44 are fixedly connected to the bottom of the multiple upper frames 42. Multiple lower frames 45 are fixedly connected to the bottom of the quick-release bolts 44. A lower horizontal frame 46 is fixedly connected to the top of the multiple lower frames 45. A bottom fixing component 47 is provided on the front side of the lower horizontal frame 46. A bottom reinforcement component 48 is provided at the bottom of each of the multiple lower frames 45.

[0041] Specifically, the quick-release support mechanism 4 is located at the bottom of the device and is connected to the connecting plate 1, providing a support foundation for the entire device. The upper horizontal frame 41 has a horizontal ring structure, and its inner wall is fixedly connected to the outer wall of the connecting plate 1, surrounding the outer side of the connecting plate 1, serving to connect the upper structure and the lower support components. The bottom of the upper horizontal frame 41 is fixedly connected to the top of multiple upper frames 42. The multiple upper frames 42 are evenly distributed along the circumference of the upper horizontal frame 41 and extend vertically downward to form the main support frame. Between the adjacent upper frames 42, a central reinforcing rib 43 is fixedly connected. The central reinforcing rib 43 is horizontal strip-shaped, and its two ends are fixed to the side walls of the two adjacent upper frames 42, which is used to enhance the connection strength between the multiple upper frames 42 and prevent the upper frames 42 from deforming under stress.

[0042] The bottom of multiple upper frames 42 is fixedly connected to the top of quick-release bolts 44. The quick-release bolts 44 are set vertically, with their upper parts connected to the upper frames 42 and their lower parts connected to the lower frames 45. Through their own disassembly and installation, the upper frames 42 and the lower frames 45 can be quickly separated and combined. The bottom of the quick-release bolts 44 is fixedly connected to the top of multiple lower frames 45. The multiple lower frames 45 correspond one-to-one with the upper frames 42 and extend downwards vertically to continue the support structure. The top of multiple lower frames 45 is fixedly connected to the bottom of lower crossbars 46. The lower crossbars 46 are similar in structure to the upper crossbars 41, forming a horizontal ring. They are located above the lower frames 45 and surround the outside of the multiple lower frames 45, further enhancing the connection stability between the lower frames 45.

[0043] A bottom fixing component 47 is provided on the front side of the lower crossbeam 46. The rear end of the bottom fixing component 47 is fixedly connected to the front side of the lower crossbeam 46, and the front end can be connected to the mounting plane. It is used to fix the lower part of the quick-release support mechanism 4 in the installation position to prevent the overall device from shifting. Bottom reinforcement components 48 are provided at the bottom of multiple lower frames 45. The top of the bottom reinforcement component 48 is fixedly connected to the bottom of the lower frame 45, and the bottom contacts the mounting plane, increasing the contact area between the lower frame 45 and the mounting plane, improving the support stability of the entire quick-release support mechanism 4, and preventing the device from tilting due to vibration during operation. The bottom of the upper filter frame 31 in the flow guiding mechanism 3 is fixed to the top of the connecting plate 1, and a flue gas filtration space is formed inside it. The side pipe assembly 32 is connected to the left and right sides of the upper filter frame 31 and can be connected to different external flue gas pipes.

[0044] Emergency ventilation vent 33 is located at the top of the upper filter frame 31 and communicates with the internal cavity. Pressure measuring component 34 is installed on the front side of the upper filter frame 31, with the measuring end extending into the interior. Blower housing 35 is fixed to the center of the top of the upper filter frame 31, air inlet 36 is located inside and below it, blower motor 37 is installed on the top, side fixing component 38 is connected to its left and right sides, air outlet 39 is opened on the upper front side, left air inlet component 310 is installed on its lower left side, and replacement pipe 311 is connected to the left side of left air inlet component 310. These components work together to complete the process of flue gas diversion and treatment.

[0045] Reference Figure 1 , Figure 2Both side pipe assemblies 32 include side pipe connecting keys 321. The two adjacent side pipe connecting keys 321 are fixedly connected to the left and right sides of the outer wall of the upper filter frame 31, respectively. Side pipe fixing plates 322 are fixedly connected to the opposite sides of the two side pipe connecting keys 321. The pressure measuring assembly 34 includes a front connecting key 341. The rear side of the front connecting key 341 is fixedly connected to the front side of the outer wall of the upper filter frame 31, and a pressure gauge 342 is fixedly connected to the front side of the front connecting key 341. The side fixing assembly 38 includes a side connecting key 381. The front side of the side connecting key 381 is fixedly connected to the rear side of the outer wall of the blower housing 35, and the top of the side connecting key 381... A fixing rod 382 runs through the middle. The left air inlet assembly 310 includes a left connecting key 3101. The right side of the left connecting key 3101 is fixedly connected to the left side of the outer wall of the blower housing 35. The left side of the left connecting key 3101 is fixedly connected to a left pipe fixing piece 3102. The bottom fixing assembly 47 includes a bottom connecting piece 471. The rear side of the bottom connecting piece 471 is fixedly connected to the front side of the lower cross frame 46. The rear side of the bottom connecting piece 471 is fixedly connected to a fixing connecting rod 472. The bottom reinforcement assembly 48 includes a bottom bolt 481. The top of the bottom bolt 481 is rotatably connected to the bottom of the lower frame 45. The bottom of the bottom bolt 481 is fixedly connected to a bottom grounding piece 482.

[0046] Specifically, the two side pipe assemblies 32 have the same structure, each including a side pipe connecting key 321. The two side pipe connecting keys 321 are block-shaped, and their adjacent sides are respectively fixedly connected to the left and right sides of the outer wall of the upper filter frame 31, fitting against the outer wall of the upper filter frame 31. The sides of the two side pipe connecting keys 321 that are far apart are fixedly connected to one side of the side pipe fixing piece 322. The side pipe fixing piece 322 is plate-shaped and extends outward in the horizontal direction for connecting to the end of the external flue gas pipe, realizing the docking of the external pipe and the upper filter frame 31.

[0047] The front connecting key 341 in the pressure measuring assembly 34 is plate-shaped. Its rear side is fixedly connected to the front side of the outer wall of the upper filter frame 31, and its front side is fixedly connected to the rear side of the pressure gauge 342. The detection end of the pressure gauge 342 communicates with the internal cavity of the upper filter frame 31 through the channel inside the front connecting key 341, and can display the flue gas pressure value inside the upper filter frame 31.

[0048] The side connecting key 381 of the side fixing assembly 38 is a block structure. Its front side is fixedly connected to the rear side of the outer wall of the blower housing 35. The top of the side connecting key 381 has a through hole. The fixing rod 382 passes through the through hole. The two ends of the fixing rod 382 can be connected to the external fixing structure, thereby fixing the blower housing 35 in a preset position. The left connecting key 3101 of the left air inlet assembly 310 is a block. Its right side is fixedly connected to the left side of the outer wall of the blower housing 35, and its left side is fixedly connected to the right side of the left pipe fixing piece 3102. The left pipe fixing piece 3102 is a piece and is used to connect the replacement pipe 311 so that the replacement pipe 311 communicates with the internal channel of the blower housing 35. The bottom connecting piece 471 of the bottom fixing component 47 is in the shape of a plate. Its rear side is fixedly connected to the front side of the lower cross frame 46. The front side of the bottom connecting piece 471 is fixedly connected to one end of the fixing connecting rod 472. The fixing connecting rod 472 extends forward in the horizontal direction, and its other end can be connected to the fixing structure on the mounting plane to enhance the fixing effect of the lower part of the device.

[0049] The bottom bolt 481 of the bottom reinforcement component 48 is set in the vertical direction, and its top is rotatably connected to the bottom of the lower frame 45. The extension length of the bottom bolt 481 can be adjusted by rotation. The bottom of the bottom bolt 481 is fixedly connected to the top of the bottom grounding plate 482. The bottom grounding plate 482 is plate-shaped and contacts the mounting plane, further improving the stability of the device.

[0050] The upper crossbeam 41 of the quick-release support mechanism 4 remains fixed to the outer wall of the connecting plate 1. The upper frame 42, the middle reinforcing rib 43, the quick-release bolt 44, the lower frame 45, and the lower crossbeam 46 maintain their original connection relationship and together form the support frame. The upper filter frame 31, the emergency air vent 33, the blower housing 35, the air inlet 36, the blower motor 37, and the air outlet 39 of the flow guiding mechanism 3 also maintain their respective connections and functions to ensure the smooth flow and treatment of flue gas.

[0051] Working principle: During the flue gas treatment and diversion process, external flue gas can enter the interior of the upper filter frame 31 through the side pipe assembly 32. The side pipe connection key 321 of the side pipe assembly 32 connects the side pipe fixing piece 322 to the outer wall of the upper filter frame 31. After the external pipe is connected to the side pipe fixing piece 322, the flue gas flows into the upper filter frame 31 through this passage.

[0052] The replacement pipe 311 is connected to the left connecting key 3101 via the left pipe fixing piece 3102 of the left air intake assembly 310. The left connecting key 3101 is fixed to the left side of the blower housing 35, allowing the flue gas in the replacement pipe 311 to enter the blower housing 35. The blower motor 37 at the top of the blower housing 35 operates, causing the air inlet 36 to draw in some flue gas, which merges with the flue gas entering from the left air intake assembly 310 inside the blower housing 35. The merged flue gas flows forward under the action of the blower motor 37. Finally, the flue gas is discharged from the outlet 39, completing the directional airflow. The upper filter frame 31 performs preliminary filtration of the internal flue gas. The pressure gauge 342 of the pressure measuring component 34 is connected to the inside of the upper filter frame 31 through the front connection key 341 to monitor the internal pressure in real time. If the pressure is abnormal, the flue gas can be discharged from the emergency vent 33. The side connection key 381 of the side fixing component 38 is fixed to the rear side of the blower housing 35. The fixing rod 382 passes through the through hole of the side connection key 381 and connects to the external structure to ensure the stability of the blower housing 35 during operation.

[0053] In terms of device support and adjustment, the bottom frame 2 at the bottom of the connecting plate 1 is connected to the upper crossbeam 41 of the quick-release support mechanism 4. The upper crossbeam 41 is fixed to the outer wall of the connecting plate 1. The upper frame 42 extends downward from the bottom of the upper crossbeam 41. The middle reinforcing rib 43 connects to the adjacent upper frame 42 to enhance the strength of the upper support structure. The bottom of the upper frame 42 is connected to the lower frame 45 through quick-release bolts 44, which facilitates quick disassembly to separate the upper and lower support parts. The top of the lower frame 45 is connected to the lower crossbeam 46, and the lower crossbeam 46 strengthens the connection between the lower frames 45. The bottom connecting piece 471 of the bottom fixing component 47 is fixed to the front side of the lower crossbeam 46. The fixing connecting rod 472 extends forward from the bottom connecting piece 471 and connects to the external fixing structure to prevent the overall displacement of the device. In the bottom reinforcing component 48 at the bottom of the lower frame 45, the bottom bolt 481 is rotatably connected to the bottom of the lower frame 45. The extension length is adjusted by rotation to change the height of the device. The bottom grounding piece 482 contacts the mounting plane to increase the contact area and improve stability.

[0054] By connecting to different external pipes through the side pipe assembly 32 and the left air inlet assembly 310, and with the guidance of the flue gas by the blower housing 35 and the blower motor 37, as well as the auxiliary functions of the pressure measuring assembly 34 and the emergency air outlet 33, the efficient diversion and treatment of flue gas in different channels is achieved, meeting the diverse flue gas transportation needs.

[0055] The quick-release bolts 44 of the quick-release support mechanism 4 enable the quick assembly and disassembly of the upper frame 42 and the lower frame 45. The bottom bolts 481 of the bottom reinforcement component 48 adjust the height of the device. Combined with the fixing function of the bottom fixing component 47, the device can be easily assembled and disassembled, its height can be freely adjusted and it can be stably fixed, which is convenient for maintenance and operation and can adapt to different installation environments.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flue gas recirculation guiding device, comprising a connecting plate (1), characterized in that: The bottom of the connecting plate (1) is fixedly connected to the bottom frame (2), and the top of the connecting plate (1) is provided with a flow guiding mechanism (3). The flow guiding mechanism (3) is used to efficiently guide the incoming flue gas. The bottom of the bottom frame (2) is provided with a quick-release support mechanism (4). The quick-release support mechanism (4) is used to fix the flow guiding device and to quickly assemble and disassemble it. The flow guiding mechanism (3) includes an upper filter frame (31), the bottom of which is fixedly connected to the top of the connecting plate (1). Side pipe assemblies (32) are provided on both the left and right sides of the outer wall of the upper filter frame (31). An emergency air vent (33) is fixedly connected to the top of the outer wall of the upper filter frame (31). A pressure measuring assembly (34) is provided on the front side of the outer wall of the upper filter frame (31). A blower housing (35) is fixedly connected to the top of the upper filter frame (31). An air inlet (36) is fixedly connected inside the blower housing (35). A blower motor (37) is fixedly connected to the top of the blower housing (35). A side fixing assembly (38) is provided on the outer wall of the blower housing (35). An air outlet (39) is opened on the front side of the outer wall of the blower housing (35). A left air inlet assembly (310) is provided on the left side of the outer wall of the blower housing (35). A replacement pipe (311) is provided on the left side of the left air inlet assembly (310).

2. The flue gas recirculation guiding device according to claim 1, characterized in that: The quick-release support mechanism (4) includes an upper crossbeam (41), the inner wall of which is fixedly connected to the outer wall of the connecting plate (1), a plurality of upper frames (42) are fixedly connected to the bottom of the upper crossbeam (41), a central reinforcing rib (43) is fixedly connected between adjacent upper frames (42), quick-release bolts (44) are fixedly connected to the bottom of the plurality of upper frames (42), a plurality of lower frames (45) are fixedly connected to the bottom of the quick-release bolts (44), a lower crossbeam (46) is fixedly connected to the top of the plurality of lower frames (45), a bottom fixing component (47) is provided on the front side of the lower crossbeam (46), and a bottom reinforcing component (48) is provided at the bottom of the plurality of lower frames (45).

3. The flue gas recirculation guiding device according to claim 1, characterized in that: Both of the side pipe assemblies (32) include side pipe connecting keys (321). The two side pipe connecting keys (321) are fixedly connected to the left and right sides of the outer wall of the upper filter frame (31) respectively. The two side pipe connecting keys (321) are fixedly connected to the opposite side of each other by a side pipe fixing piece (322).

4. The flue gas recirculation guiding device according to claim 1, characterized in that: The pressure measuring component (34) includes a front connecting key (341), the rear side of which is fixedly connected to the front side of the outer wall of the upper filter frame (31), and a pressure gauge (342) is fixedly connected to the front side of the front connecting key (341).

5. The flue gas recirculation guiding device according to claim 1, characterized in that: The side fixing assembly (38) includes a side connecting key (381), the front side of which is fixedly connected to the rear side of the outer wall of the blower housing (35), and a fixing rod (382) passes through the top of the side connecting key (381).

6. The flue gas recirculation guiding device according to claim 1, characterized in that: The left air intake assembly (310) includes a left connecting key (3101), the right side of which is fixedly connected to the left side of the outer wall of the blower housing (35), and the left side of which is fixedly connected to a left pipe fixing piece (3102).

7. The flue gas recirculation guiding device according to claim 2, characterized in that: The bottom fixing assembly (47) includes a bottom connecting piece (471), the rear side of which is fixedly connected to the front side of the lower cross frame (46), and a fixing connecting rod (472) is fixedly connected to the rear side of the bottom connecting piece (471).

8. The flue gas recirculation guiding device according to claim 2, characterized in that: The bottom reinforcement component (48) includes a bottom bolt (481), the top of which is rotatably connected to the bottom of the lower frame (45), and a bottom grounding plate (482) is fixedly connected to the bottom of the bottom bolt (481).

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