Ammonia injection grid turbulence device and ammonia injection grid

Abstract

The invention relates to the technical field of ammonia spraying grilles, in particular to an ammonia spraying grille turbulent flow device and an ammonia spraying gril.The ammonia spraying grille turbulent flow device comprises an ammonia spraying fixing pipe, a guiding fixing support, an adjusting sliding plate, a fixing connecting ring, a turbulent flow mounting column, a connecting mounting end cover, an adjusting mechanism and a quick changing mechanism; wherein the multiple guide fixing supports are arranged, every two guide fixing supports form a group, and each group of guide fixing supports are fixedly connected to the upper end face of one ammonia spraying fixing pipe; the multiple adjusting sliding plates are arranged, and each adjusting sliding plate is slidably connected to the inner side of the corresponding guide fixing support. The number of the fixed connecting rings is multiple, and each fixed connecting ring penetrates through and is fixedly connected to one adjusting sliding plate. The problems that an existing ammonia injection grid turbulent flow device is difficult to dynamically adjust according to different operation working conditions in practical application and is poor in flexibility are solved, and the adaptive capacity and the operation flexibility are improved.

Description

Technical Field

[0001] This invention relates to the field of ammonia injection grid technology, and particularly to an ammonia injection grid turbulence device and an ammonia injection grid. Background Technology

[0002] The ammonia injection grid is a core component of a selective catalytic reduction (SCR) system. Its main function is to uniformly and controllably inject and distribute ammonia, the reducing agent, into the nitrogen oxide gas flow within the flue gas duct. The performance of this device directly affects the mixing effect of ammonia and flue gas in the SCR reactor, thus influencing the overall denitrification efficiency and ammonia slip rate. To further improve the mixing uniformity between ammonia and flue gas, modern ammonia injection grids are typically equipped with a flow disruptor. This flow disruptor, through a special structural design, causes the injected ammonia to rotate upon entering the flue gas flow field, thereby enhancing its diffusion capacity and distribution uniformity within the flue gas duct. This rotating flow not only helps to break down the velocity difference and concentration gradient between the flue gas and ammonia but also promotes more thorough contact between the two, significantly improving the efficiency of the chemical reaction.

[0003] However, in actual operation, the existing ammonia injection grille baffles are difficult to dynamically adjust according to different operating conditions such as boiler load changes, flue gas flow fluctuations, or differences in nitrogen oxide concentrations due to the fixed relative position between the baffle and the ammonia injection port. This results in a relatively simple ammonia injection pattern and insufficient adaptability. This fixed installation method limits the effective control of the ammonia flow state by the baffle, making it difficult to maintain the best mixing effect in complex and variable flue gas environments. When the flue gas flow field distribution changes, the fixed baffle structure cannot effectively guide the ammonia to form an ideal rotating diffusion pattern, thus affecting the uniform mixing between ammonia and flue gas and impacting denitrification efficiency. At the same time, local areas are prone to excessively high or low ammonia concentrations, which increases the risk of ammonia escape and affects the environmental performance and operating economy of the system. Summary of the Invention

[0004] In view of this, the present invention provides an ammonia injection grid turbulence device, which has the advantages of improved adaptability and operational flexibility.

[0005] The first aspect of the present invention provides an ammonia injection grid turbulence device, including an ammonia injection fixing pipe, a guide fixing bracket, an adjusting sliding plate, a fixing connecting ring, a turbulence mounting column, a connecting mounting end cap, an adjusting mechanism, and a quick-change mechanism; The system includes multiple guide fixing brackets, with two guide fixing brackets forming a group. Each group of guide fixing brackets is fixedly connected to the upper end face of an ammonia injection fixing pipe. Multiple adjusting sliding plates are provided, with both ends of each adjusting sliding plate slidably connected to the inner side of a group of guide fixing brackets. Multiple fixed connecting rings are provided, each passing through and fixedly connected to an adjusting sliding plate. Multiple turbulence mounting columns are provided, each inserted into the inner side of a fixed connecting ring, with external threads on the outer side of the upper end of each column. Multiple connecting mounting end caps are provided, with internal threads on the inner side of each end cap, and each end cap is threadedly connected to a turbulence mounting column. The adjustment mechanism is located at the upper end of the ammonia injection fixed pipe and is used to drive the adjustment sliding plate to move up and down along the vertical direction of the guide fixed bracket; The quick-change mechanism is detachably mounted on the turbulence mounting post and includes turbulence devices for achieving turbulence.

[0006] Furthermore, there are threaded connection holes and connecting adjustment screws; multiple threaded connection holes are provided, each threaded connection hole is opened through an adjusting sliding plate; multiple connecting adjustment screws are provided, each connecting adjustment screw is rotatably connected to the inside of an ammonia injection fixed pipe, and each connecting adjustment screw is threadedly connected to a threaded connection hole.

[0007] Furthermore, there are adjustable fixed bevel gears and adjustable driving bevel gears; there are multiple adjustable fixed bevel gears, each of which is fixedly connected to the lower end face of a connecting adjusting screw; there are multiple adjustable driving bevel gears, each of which is rotatably connected to the inner side of the upper end of an ammonia injection fixed pipe, and each adjustable driving bevel gear meshes with an adjustable fixed bevel gear to form a bevel gear transmission mechanism.

[0008] Furthermore, there are adjustment knobs and connecting adjustment rods; there are multiple adjustment knobs, each of which is rotatably connected to the outside of an ammonia injection fixed pipe; there are multiple connecting adjustment rods, one end of each connecting adjustment rod is coaxially fixedly connected to an adjustment knob, and the other end is coaxially fixedly connected to an adjustment drive bevel gear.

[0009] Furthermore, a fixed bearing and a spoiler mounting shaft are connected; multiple fixed bearings are provided, and the outer ring of each fixed bearing is interference-fitted to the inner side of the upper end of a spoiler mounting column; multiple spoiler devices are provided, and each spoiler device is rotatably mounted above a connecting mounting end cover; multiple spoiler mounting shafts are provided, and each spoiler mounting shaft is coaxially fixedly connected to the lower end face of a spoiler device, and each spoiler mounting shaft is interference-fitted to the inner side of the inner ring of a fixed bearing.

[0010] Furthermore, the system includes a first mounting limiting slider, a second mounting limiting slider, a first connecting hollow through groove, and a second connecting hollow through groove. Multiple first and second mounting limiting sliders are correspondingly provided, forming multiple sets of paired sliders. Each set of paired sliders is slidably embedded in a radial groove at the lower end of a flow-deflecting mounting column. The outer ends of both the first and second mounting limiting sliders extend outwards through the outer wall of the flow-deflecting mounting column. The outer wall of the flow-deflecting mounting column has an annular protrusion corresponding to the extending direction of the first and second mounting limiting sliders. The outer ends of the first sliding block and the second mounting limiting slider, together with the annular protrusion, form axially opposite clamping surfaces, which together constitute a clamping structure for clamping and fixing the connecting ring. The fixing connecting ring is fitted onto the outer wall of the turbulence mounting column and is axially limited and clamped between the two clamping surfaces of the clamping structure, thereby realizing the detachable fixing of the turbulence mounting column and the adjusting sliding plate. There are multiple first connecting hollow through slots, and every two first connecting hollow through slots form a group. Each group of first connecting hollow through slots is located in the part of a first mounting limiting slider located inside the turbulence mounting column. There are multiple second connecting hollow through slots, and each second connecting hollow through slot is located inside a second mounting limiting slider.

[0011] Furthermore, the quick-change mechanism also includes: a first quick-change pressing block, a second quick-change pressing block, a third connecting hollow channel, and a fourth connecting hollow channel. Multiple first and second quick-change pressing blocks are correspondingly provided; each first and second quick-change pressing block corresponds one-to-one, forming multiple sets of paired pressing blocks. Each set of paired pressing blocks is slidably connected to the inner side of the upper end of a flow-disrupting mounting column, and one end of each first and second quick-change pressing block penetrates the outer wall of the flow-disrupting mounting column. Multiple third connecting hollow channels are provided, with every two third connecting hollow channels forming a group. Each group of third connecting hollow channels is located within a first quick-change pressing block inside the flow-disrupting mounting column. Multiple fourth connecting hollow channels are provided, with each fourth connecting hollow channel opened within a second quick-change pressing block inside the flow-disrupting mounting column.

[0012] Furthermore, the quick-change mechanism also includes a first connecting drive rod, a second connecting drive rod, an adjusting center rotating shaft, and a fixed connecting slide rod; the first connecting drive rod and the second connecting drive rod are one-to-one and there are multiple of them. The upper end of each first connecting drive rod is slidably connected to a first quick-change pressing block, and the lower end is slidably connected to a first mounting limiting slider. The upper end of the second connecting drive rod is slidably connected to a second quick-change pressing block, and the lower end is slidably connected to a second mounting limiting slider. There are multiple adjusting center rotating shafts, and every two adjusting center rotating shafts form a group. Each group of adjusting center rotating shafts is fixed. The fixed connecting slide rods are fixedly connected to the first connecting drive rod and the second connecting drive rod; multiple fixed connecting slide rods are provided, with each pair of fixed connecting slide rods forming a group. Each end of the first connecting drive rod and the second connecting drive rod is fixedly connected to a group of fixed connecting slide rods. The fixed connecting slide rod on the first connecting drive rod is slidably connected to the first connecting hollow through groove, and the other end is slidably connected to the third connecting hollow through groove. One end of the fixed connecting slide rod on the second connecting drive rod is slidably connected to the second connecting hollow through groove, and the other end is slidably connected to the fourth connecting hollow through groove.

[0013] Furthermore, the quick-change mechanism also includes: a reset compression spring, which is disposed inside the turbulence mounting column; there are multiple reset compression springs, one end of each reset compression spring is fixedly connected to the first quick-change pressing block, and the other end is fixedly connected to the second quick-change pressing block.

[0014] A second aspect of the present invention provides an ammonia injection grid, including the ammonia injection grid turbulence device described in the first aspect of the present invention.

[0015] Beneficial effects This invention, by setting an adjustment mechanism, can drive the adjustment sliding plate to move up and down along the guide fixed bracket. Under the drive of the adjustment sliding plate, the turbulence mounting column and the turbulence device on it can move up and down synchronously, thereby adjusting the distance between the turbulence device and the ammonia injection fixed pipe. This adjustment method can dynamically adjust the position of the turbulence device according to different operating conditions, effectively enhancing the system's adaptability to operating conditions and operational flexibility.

[0016] The coordination of the adjustment mechanism, quick-change mechanism, and sliding adjustable plate enables the adjustment of the distance between the turbulence device and the ammonia injection fixed pipe. By rotating the adjustment operation knob, the knob drives the adjustment drive bevel gear to rotate via the connecting rod. Under the action of meshing with the adjustment fixed bevel gear, the adjustment drive bevel gear further drives the connecting adjustment screw to rotate. The rotation of the connecting adjustment screw, through its engagement with the threaded connection hole, pushes the adjusting sliding plate to slide up and down, thereby adjusting its support height. This adjustment method can dynamically adjust the position of the turbulence device according to different operating conditions, enhancing the system's adaptability and operational flexibility. At the same time, since the connecting adjustment screw and the threaded connection hole form a screw-nut transmission pair with a self-locking function, the adjusting sliding plate will not shift when the adjustment operation knob is not operated, ensuring structural stability and reliability and guaranteeing the positioning accuracy after adjustment.

[0017] Furthermore, the quick-change mechanism enables rapid replacement of the aerodynamic components. When a replacement is needed, simply press the two quick-change blocks. These blocks will push the connecting drive rod to rotate around the adjustment center shaft. Under the linkage between the adjustment center shaft and the first connecting hollow slot, the two mounting limit sliders will retract inward, thereby releasing the restriction on the aerodynamic mounting post. At this point, the aerodynamic mounting post can be easily pulled upward to complete the disassembly and replacement of the aerodynamic component. The entire process is simple to operate and responds quickly, significantly improving the efficiency of equipment maintenance and replacement operations, while also effectively reducing the labor intensity of operators.

[0018] Furthermore, the aforementioned mechanism not only allows for the adjustment of the distance between the turbulence-inducing device and the ammonia injection fixed pipe, enabling the system to better cope with changes in different operating conditions and improve operational stability and denitrification effect, but also enables the rapid replacement of the turbulence-inducing device, improving the convenience and efficiency of equipment operation and maintenance. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram: Figure 1 This is a schematic diagram of the main body of the ammonia injection grid turbulence device of the present invention.

[0022] Figure 2 This is a schematic diagram of the nozzle fixing tube of the present invention.

[0023] Figure 3 This is a cross-sectional structural schematic diagram of the ammonia injection fixing pipe of the present invention.

[0024] Figure 4 This is a schematic diagram of the structure of the turbulence mounting column of the present invention.

[0025] Figure 5 This is a cross-sectional structural schematic diagram of the turbulence mounting column of the present invention.

[0026] Figure 6 This is a schematic diagram of the disassembled structure of the turbulence mounting column connection mounting end cap of the present invention.

[0027] Figure 7 This is a structural schematic diagram of the quick-change mechanism of the present invention.

[0028] Figure 8 This is a partial structural schematic diagram of the quick-change mechanism of the present invention.

[0029] List of reference numerals 1. Ammonia injection fixing pipe; 2. Guide fixing bracket; 3. Adjusting sliding plate; 4. Fixing connecting ring; 401. Threaded connection hole; 5. Baffle mounting column; 6. Connecting mounting end cover; 7. Connecting adjusting screw; 8. Adjusting fixing bevel gear; 9. Adjusting driving bevel gear; 10. Adjusting operation knob; 1001. Connecting adjusting rod; 11. Connecting fixing bearing; 12. Baffle device; 1201. Baffle mounting shaft; 13-1. First mounting limit slider; 3-2. Second mounting limit slider; 1301. First connecting hollow through groove; 1302. Second connecting hollow through groove; 14-1. First quick-change pressing block; 14-2. Second quick-change pressing block; 1401. Third connecting hollow through groove; 1402. Fourth connecting hollow through groove; 15-1. First connecting drive rod; 15-2. Second connecting drive rod; 1501. Adjusting center rotating shaft; 1502. Fixed connecting slide rod; 16. Reset compression spring. Detailed Implementation

[0030] Example 1: Please refer to Figures 1-4 As shown: The present invention provides an ammonia injection grid turbulence device, comprising an ammonia injection fixing pipe 1, a guide fixing bracket 2, an adjusting sliding plate 3, a fixing connecting ring 4, a turbulence mounting column 5, a connecting mounting end cap 6, and an adjusting mechanism.

[0031] Specifically, multiple guide fixing brackets 2 are provided, with each pair of guide fixing brackets 2 forming a group. Multiple groups of guide fixing brackets 2 are fixedly connected to the upper end faces of multiple ammonia injection fixing pipes 1, and each group of guide fixing brackets 2 is symmetrically arranged. Multiple adjusting sliding plates 3 are provided, with both ends of the multiple adjusting sliding plates 3 slidably connected to the inner sides of the multiple groups of guide fixing brackets 2. Multiple fixing connecting rings 4 are provided, with the multiple fixing connecting rings 4 passing through and fixedly connected to the multiple adjusting sliding plates 3. Multiple turbulence mounting columns 5 are provided, with the multiple turbulence mounting columns 5 inserted into the inner sides of the multiple fixing connecting rings 4, and the upper outer side of the multiple turbulence mounting columns 5 is provided with threads. Multiple connecting mounting end caps 6 are provided, with the inner side of the multiple connecting mounting end caps 6 being provided with threads, and each connecting mounting end cap 6 is threaded to the outer side of a turbulence mounting column 5. The adjustment mechanism is located at the upper end of the ammonia injection fixing pipe 1.

[0032] The adjustment mechanism includes: a threaded connection hole 401, a connecting adjustment screw 7, an adjusting fixed bevel gear 8, an adjusting drive bevel gear 9, an adjustment operation knob 10, and a connecting adjustment rod 1001, wherein one end of the adjusting fixed bevel gear 8, the adjusting drive bevel gear 9, and the connecting adjustment screw 7 is located inside the ammonia injection fixed pipe.

[0033] Specifically, multiple threaded connection holes 401 are provided, each threaded connection hole 401 being opened inside an adjusting sliding plate 3; multiple connecting adjusting screws 7 are provided, each connecting adjusting screw 7 being rotatably connected to the inside of an ammonia injection fixing pipe 1, and each connecting adjusting screw 7 being threadedly connected to a threaded connection hole 401; multiple adjusting fixed bevel gears 8 are provided, each adjusting fixed bevel gear 8 being fixedly connected to the lower end face of a connecting adjusting screw 7; multiple adjusting drive bevel gears 9 are provided, each adjusting drive bevel gear 9 being rotatably connected to the inner side of the upper end of an ammonia injection fixing pipe 1, and each adjusting drive bevel gear 9 meshing with an adjusting fixed bevel gear 8 to form a bevel gear transmission mechanism; multiple adjusting operation knobs 10 are provided, each adjusting operation knob 10 being rotatably connected to the outside of an ammonia injection fixing pipe 1; multiple connecting adjusting rods 1001 are provided, each connecting adjusting rod 1001 having one end coaxially fixedly connected to an adjusting operation knob 10, and the other end of each connecting adjusting rod 1001 passing through the ammonia injection fixing pipe 1 and coaxially fixedly connected to an adjusting drive bevel gear 9.

[0034] The specific usage and function of this embodiment: By rotating the adjustment knob 10, the adjustment knob 10 drives the adjustment drive bevel gear 9 to rotate via the connecting adjustment rod 1001. The rotation of the adjustment drive bevel gear 9, in turn, drives the connecting adjustment screw 7 to rotate under the action of meshing with the adjusting fixed bevel gear 8. The rotation of the connecting adjustment screw 7, in turn, drives the adjusting sliding plate 3 to slide under the action of being threadedly connected to the threaded connection hole 401, thereby adjusting the support height of the adjusting sliding plate 3 and realizing the driving adjustment sliding plate 3 to move up and down along the vertical direction of the guide fixed bracket 2. At the same time, since the connecting adjustment screw 7 and the threaded connection hole 401 together constitute a screw and nut transmission pair, the connection between the connecting adjustment screw 7 and the threaded connection hole 401 has a self-locking performance. When the adjustment knob 10 is not operated, the adjusting sliding plate 3 will not slide arbitrarily. Embodiment 2: Based on Example 1, such as Figures 5-8 As shown, the ammonia spraying grid turbulence device also includes a quick-change mechanism, which is mounted on the turbulence mounting column 5. The quick-change mechanism includes: a connecting fixed bearing 11, a turbulence device 12, a turbulence mounting shaft 1201, a first mounting limit slider 13-1, a second mounting limit slider 13-2, a first connecting hollow channel 1301, a second connecting hollow channel 1302, a first quick-change pressing block 14-1, a second quick-change pressing block 14-2, a third connecting hollow channel 1401, a fourth connecting hollow channel 1402, a first connecting drive rod 15-1, a second connecting drive rod 15-2, an adjusting center rotating shaft 1501, a fixed connecting slide rod 1502, and a return compression spring 16.

[0035] Specifically, there are multiple connecting and fixing bearings 11, and the outer ring of each connecting and fixing bearing 11 is interference-fitted to the inner side of the upper end of a deflector mounting post 5; there are multiple deflector devices 12, and each deflector device 12 is rotatably mounted above a connecting and mounting end cover 6; there are multiple deflector mounting shafts 1201, and each deflector mounting shaft 1201 is coaxially fixedly connected to the lower end face of a deflector device 12, and each deflector mounting shaft 1201 is interference-fitted to the inner side of the inner ring of a connecting and fixing bearing 11.

[0036] Specifically, multiple first mounting limit sliders 13-1 and second mounting limit sliders 13-2 are provided, with each pair of first and second mounting limit sliders 13-2 corresponding to one another, forming multiple sets of paired sliders. Each set of paired sliders includes one first mounting limit slider 13-1 and one second mounting limit slider 13-2. Each set of paired sliders is slidably embedded in a radial groove at the lower end of a deflector mounting column, and the outer ends of each first mounting limit slider 13-1 and each second mounting limit slider 13-2 extend outward through the outer wall of the deflector mounting column. The lower end of the deflector mounting column 5 has a set (2) of symmetrical radial grooves, and the first and second mounting limit sliders 13-1 and 13-2 are slidably embedded in one set of radial grooves respectively. Each first mounting limit slider 13-1 and second mounting limit slider 13-2 corresponds to one radial groove.

[0037] Furthermore, the outer wall of the turbulence mounting column 5 is provided with an annular protrusion corresponding to the extension direction of the first mounting limiting slider 13-1 and the second mounting limiting slider 13-2. The outer ends of the first mounting limiting slider 13-1 and the second mounting limiting slider 13-2 form axially opposite clamping surfaces with the annular protrusion, which together constitute a clamping structure for clamping and fixing the connecting ring 4. The fixing connecting ring 4 is fitted onto the outer wall of the turbulence mounting column 5 and is axially limited and clamped between the two clamping surfaces of the clamping structure, thereby realizing the detachable fixing of the turbulence mounting column 5 and the adjusting sliding plate 3. There are multiple first connecting hollow through slots 1301, and every two first connecting hollow through slots 1301 form a group. Each group of first connecting hollow through slots 1301 is located in the part of a first mounting limiting slider 13-1 located inside the turbulence mounting column 5. There are multiple second connecting hollow through slots 1302, and each second connecting hollow through slot 1302 is located inside a second mounting limiting slider 13-2.

[0038] Specifically, there are multiple first quick-change pressing blocks 14-1 and second quick-change pressing blocks 14-2. The first quick-change pressing blocks 14-1 and the second quick-change pressing blocks 14-2 correspond one-to-one to form multiple sets of paired pressing blocks. Each set of paired pressing blocks includes one first quick-change pressing block 14-1 and one second quick-change pressing block 14-2. Each pair of matching pressing blocks is slidably connected to the inner side of the upper end of a turbulence mounting column 5, and one end of each first quick-change pressing block 14-1 and each second quick-change pressing block 14-2 penetrates the outer wall of the turbulence mounting column 5; multiple third connecting hollow channels 1401 are provided, with each pair of third connecting hollow channels 1401 forming a group, and each group of third connecting hollow channels 1401 is located in the part of a first quick-change pressing block 14-1 located inside the turbulence mounting column 5; multiple fourth connecting hollow channels 1402 are provided, and each fourth connecting hollow channel 1402 is opened in the part of a second quick-change pressing block 14-2 located inside the turbulence mounting column 5.

[0039] Specifically, the system includes a first connecting drive rod 15-1, a second connecting drive rod 15-2, an adjusting center rotating shaft 1501, and a fixed connecting slide rod 1502. The first connecting drive rod 15-1 and the second connecting drive rod 15-2 are one-to-one, and multiple rods are provided. The upper end of each first connecting drive rod 15-1 is slidably connected to a first quick-change pressing block 14-1, and the lower end is slidably connected to a first mounting limit slider 13-1. The upper end of each second connecting drive rod 15-2 is slidably connected to a second quick-change pressing block 14-2, and the lower end is slidably connected to a second mounting limit slider 13-2. Multiple adjusting center rotating shafts 1501 are provided, with each pair of adjusting center rotating shafts 1501 forming a group. Each group of adjusting center rotating shafts 1501 is fixed... The fixed connection is fixed to the first connecting drive rod 15-1 and the second connecting drive rod 15-2; multiple fixed connecting slide rods 1502 are provided, with each pair of fixed connecting slide rods 1502 forming a group. A group of fixed connecting slide rods 1502 is fixedly connected to both ends of the first connecting drive rod 15-1 and the second connecting drive rod 15-2, and the fixed connecting slide rod 1502 on the first connecting drive rod 15-1 is slidably connected to the first connecting hollow through groove 1301, and the other end is slidably connected to the third connecting hollow through groove 1401. One end of the fixed connecting slide rod 1502 on the second connecting drive rod 15-2 is slidably connected to the second connecting hollow through groove 1302, and the other end is slidably connected to the fourth connecting hollow through groove 1402.

[0040] Specifically, the reset compression spring 16 is located inside the turbulence mounting post 5; there are multiple reset compression springs 16, one end of each reset compression spring 16 is fixedly connected to the first quick-change pressing block 14-1, and the other end is fixedly connected to the second quick-change pressing block 14-2.

[0041] The specific usage and function of this embodiment: When it is necessary to replace the turbulence device 12, by pressing the first quick-change pressing block 14-1 and the second quick-change pressing block 14-2, the first quick-change pressing block 14-1 and the second quick-change pressing block 14-2 will respectively push the first connecting drive rod 15-1 and the second connecting drive rod 15-2 to rotate. The fixed connecting slide rods 1502 at both ends of the first connecting drive rod 15-1 are respectively connected to the first connecting hollow through groove 1301 (corresponding to the first mounting limit slider 13-1) and the third connecting hollow through groove 1401 (corresponding to the first mounting limit slider 13-1). The first quick-change pressing block 14-1 slides within the second connecting drive rod 15-2; the fixed connecting slide rods 1502 at both ends of the second connecting hollow through groove 1302 (corresponding to the second mounting limit slider 13-2) and the fourth connecting hollow through groove 1402 (corresponding to the second quick-change pressing block 14-2) slide within the second connecting hollow through groove 1302, respectively, thereby driving the first mounting limit slider 13-1 at the other end of the first connecting drive rod 15-1 and the second mounting limit slider 13-2 at the other end of the second connecting drive rod 15-2 to slide towards the inside of the turbulence mounting post 5. At this time, the first mounting limit slider 13-1 and the second mounting limit slider 13-2 will lose their limit on the fixed connecting ring 4, and the turbulence device 12 can be disassembled by pulling the turbulence mounting post 5 upward. After disassembly and replacement, the spoiler mounting post 5 is re-inserted into the inner side of the fixed connecting ring. The first quick-change pressing block 14-1 and the second quick-change pressing block 14-2 are released, and the reset compression spring 16 releases its elastic tension, pushing the two sets of quick-change pressing blocks to reset in the opposite direction. Then, through the first connecting drive rod 15-1 and the second connecting drive rod 15-2, the first installation limit slider 13-1 and the second installation limit slider 13-2 are driven to slide outward, cooperating with the annular protrusion to re-clamp the fixed connecting ring 4, thus achieving quick locking and fixing of the spoiler mounting post 5. The whole process is simple to operate and responds quickly, greatly improving the work efficiency of equipment maintenance and replacement operations, while also effectively reducing the labor intensity of operators.

[0042] In summary, this invention, through the adjustment mechanism, achieves the adjustment of the distance between the turbulence-causing device and the ammonia injection fixed pipe. By rotating the adjustment knob, the knob drives the adjustment drive bevel gear to rotate via the connecting rod. The adjustment drive bevel gear, in meshing with the adjustment fixed bevel gear, further drives the connecting adjustment screw to rotate. The rotation of the connecting adjustment screw, through its engagement with the threaded connection hole, pushes the adjustment sliding plate up and down, thereby adjusting its support height. This adjustment method can dynamically adjust the position of the turbulence-causing device according to different operating conditions, enhancing the system's adaptability and operational flexibility. Furthermore, since the connecting adjustment screw and the threaded connection hole form a screw-nut transmission pair with a self-locking function, the adjustment sliding plate will not shift when the adjustment knob is not operated, ensuring structural stability and reliability, and guaranteeing the positioning accuracy after adjustment.

[0043] Furthermore, the quick-change mechanism enables rapid replacement of the aerodynamic components. When a replacement is needed, simply press the two quick-change blocks. These blocks will push the connecting drive rod to rotate around the adjustment center shaft. Under the linkage between the adjustment center shaft and the first connecting slide, the two mounting limit sliders will retract inward, thereby releasing the restriction on the aerodynamic mounting post. At this point, the aerodynamic mounting post can be easily pulled upward to complete the disassembly and replacement of the aerodynamic component. The entire process is simple to operate and responds quickly, significantly improving the efficiency of equipment maintenance and replacement work, while also effectively reducing the labor intensity of operators.

[0044] Furthermore, the aforementioned mechanism not only allows for the adjustment of the distance between the turbulence-inducing device and the ammonia injection fixed pipe, enabling the system to better cope with changes in different operating conditions and improve operational stability and denitrification effect, but also enables the rapid replacement of the turbulence-inducing device, improving the convenience and efficiency of equipment operation and maintenance.

[0045] Based on the above-mentioned ammonia injection grid turbulence device, the present invention also provides an ammonia injection grid, including the ammonia injection grid turbulence device as described above.

[0046] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0047] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0048] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0049] The basic principles of this disclosure have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this disclosure are merely examples and not limitations, and should not be considered as essential features of each embodiment of this disclosure. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the scope of this disclosure to the necessity of employing the aforementioned specific details for implementation.

Claims

1. An ammonia injection grid turbulence evacuation device, characterized in that, It includes an ammonia injection fixing pipe (1), a guide fixing bracket (2), an adjusting sliding plate (3), a fixing connecting ring (4), a turbulence mounting column (5), a connecting mounting end cap (6), an adjusting mechanism, and a quick-change mechanism; The guide fixing bracket (2) is provided in multiple ways, with each pair of guide fixing brackets (2) forming a group. Each group of guide fixing brackets (2) is fixedly connected to the upper end face of an ammonia injection fixing pipe (1). The adjusting sliding plate (3) is provided in multiple ways, with both ends of each adjusting sliding plate (3) slidably connected to the inner side of a group of guide fixing brackets (2). The fixing connecting ring (4) is provided in multiple ways, with each fixing connecting ring (4) passing through and fixedly connected to an adjusting sliding plate (3). The turbulence mounting column (5) is provided in multiple ways, with each turbulence mounting column (5) inserted into the inner side of a fixing connecting ring (4). The outer side of the upper end of each of the multiple turbulence mounting columns (5) is provided with external threads. The connecting mounting end cap (6) is provided in multiple ways, with the inner side of each of the multiple connecting mounting end caps (6) being provided with internal threads. Each connecting mounting end cap (6) is threadedly connected to a turbulence mounting column (5). The adjustment mechanism is located at the upper end of the ammonia injection fixing pipe (1) and is used to drive the adjustment sliding plate (3) to move up and down along the vertical direction of the guide fixing bracket (2). The quick-change mechanism is detachably mounted on the turbulence mounting post (5) and includes a turbulence device (12) for achieving turbulence.

2. The ammonia injection grid turbulence device as described in claim 1, characterized in that: The adjustment mechanism includes: a threaded connection hole (401) and a connecting adjustment screw (7); there are multiple threaded connection holes (401), each threaded connection hole (401) is opened through an adjustment sliding plate (3); there are multiple connecting adjustment screws (7), each connecting adjustment screw (7) is rotatably connected to the inner side of an ammonia injection fixing pipe (1), and each connecting adjustment screw (7) is threadedly connected to one of the threaded connection holes (401).

3. The ammonia injection grid turbulence device as described in claim 2, characterized in that: The adjustment mechanism further includes: an adjustment fixed bevel gear (8) and an adjustment drive bevel gear (9); there are multiple adjustment fixed bevel gears (8), each adjustment fixed bevel gear (8) is fixedly connected to the lower end face of a connecting adjustment screw (7); there are multiple adjustment drive bevel gears (9), each adjustment drive bevel gear (9) is rotatably connected to the inner side of the upper end of an ammonia injection fixed pipe (1), and each adjustment drive bevel gear (9) meshes with an adjustment fixed bevel gear (8) to form a bevel gear transmission mechanism.

4. The ammonia injection grid turbulence device as described in claim 3, characterized in that: The adjustment mechanism further includes: an adjustment operation knob (10) and a connecting adjustment rod (1001); there are multiple adjustment operation knobs (10), each adjustment operation knob (10) is rotatably connected to the outside of an ammonia injection fixed pipe (1); there are multiple connecting adjustment rods (1001), one end of each connecting adjustment rod (1001) is coaxially fixedly connected to an adjustment operation knob (10), and the other end is coaxially fixedly connected to an adjustment drive bevel gear (9).

5. The ammonia injection grid turbulence device as described in claim 1, characterized in that: The quick-change mechanism further includes: a connecting fixed bearing (11) and a turbulence mounting shaft (1201); there are multiple connecting fixed bearings (11), and the outer ring of each connecting fixed bearing (11) is respectively interference-fitted to the inner side of the upper end of a turbulence mounting column (5); there are multiple turbulence devices (12), and each turbulence device (12) is respectively rotatably mounted above a connecting mounting end cover (6); there are multiple turbulence mounting shafts (1201), and each turbulence mounting shaft (1201) is coaxially fixedly connected to the lower end face of a turbulence device (12), and each turbulence mounting shaft (1201) is interference-fitted to the inner side of the inner ring of a connecting fixed bearing (11).

6. The ammonia injection grid turbulence device as described in claim 5, characterized in that: The quick-change mechanism further includes: a first mounting limiting slider (13-1), a second mounting limiting slider (13-2), a first connecting hollow through groove (1301), and a second connecting hollow through groove (1302); multiple first mounting limiting sliders (13-1) and multiple second mounting limiting sliders (13-2) are correspondingly provided, and multiple first mounting limiting sliders (13-1) and multiple second mounting limiting sliders (13-2) correspond one-to-one to form multiple sets of paired sliders. Each set of paired sliders is slidably embedded in the radial groove at the lower end of a turbulence mounting column (5), and the outer end of each first mounting limiting slider (13-1) and the outer end of each second mounting limiting slider (13-2) extend outward through the outer wall of the turbulence mounting column (5). The outer wall of the turbulence mounting column (5) is provided with annular protrusions corresponding to the extension direction of the first mounting limiting slider (13-1) and the second mounting limiting slider (13-2). The outer ends of the first mounting limiting slider (13-1) and the second mounting limiting slider (13-2) form axially opposite clamping surfaces with the annular protrusion, which together constitute a clamping structure for clamping and fixing the connecting ring (4). The fixing connecting ring (4) is fitted onto the outer wall of the turbulence mounting column (5) and is axially limited and clamped between the two clamping surfaces of the clamping structure, thereby realizing the detachable fixing of the turbulence mounting column (5) and the adjusting sliding plate (3). There are multiple first connecting hollow through slots (1301), and every two first connecting hollow through slots (1301) form a group. Each group of first connecting hollow through slots (1301) is located in the part of one of the first mounting limiting sliders (13-1) located inside the turbulence mounting column (5). There are multiple second connecting hollow through slots (1302), and each second connecting hollow through slot (1302) is located inside one of the second mounting limiting sliders (13-2).

7. The ammonia injection grid turbulence device as described in claim 6, characterized in that: The quick-change mechanism further includes: a first quick-change pressing block (14-1), a second quick-change pressing block (14-2), a third connecting hollow through slot (1401), and a fourth connecting hollow through slot (1402). Multiple first quick-change pressing blocks (14-1) and second quick-change pressing blocks (14-2) are correspondingly provided. Each first quick-change pressing block (14-1) and second quick-change pressing block (14-2) corresponds one-to-one, forming multiple sets of paired pressing blocks. Each set of paired pressing blocks is slidably connected to the inner side of the upper end of one of the turbulence mounting columns (5), and each first quick-change pressing block (14-1) and each second quick-change pressing block (1402) are connected in a specific manner. One end of each quick-change pressing block (14-2) penetrates the outer wall of the turbulence mounting column (5); multiple third connecting hollow channels (1401) are provided, and each pair of third connecting hollow channels (1401) forms a group. Each group of third connecting hollow channels (1401) is located in the part of one of the first quick-change pressing blocks (14-1) located inside the turbulence mounting column (5); multiple fourth connecting hollow channels (1402) are provided, and each fourth connecting hollow channel (1402) is opened in the part of one of the second quick-change pressing blocks (14-2) located inside the turbulence mounting column (5).

8. The ammonia injection grid turbulence device as described in claim 7, characterized in that: The quick-change mechanism further includes: a first connecting drive rod (15-1), a second connecting drive rod (15-2), an adjusting center rotating shaft (1501), and a fixed connecting slide rod (1502); the first connecting drive rod (15-1) and the second connecting drive rod (15-2) correspond one-to-one and there are multiple of them. The upper end of each first connecting drive rod (15-1) is slidably connected to a first quick-change pressing block (14-1), and the lower end is slidably connected to a first mounting limit slider (13-1). The upper end of the second connecting drive rod (15-2) is slidably connected to the second quick-change pressing block (14-2), and the lower end is slidably connected to a second mounting limit slider (13-2); there are multiple adjusting center rotating shafts (1501), and every two adjusting center rotating shafts (1501) form a group. Each group of adjusting center rotating shafts (1501) is fixed. The fixed connecting slide rods (1502) are connected to the first connecting drive rod (15-1) and the second connecting drive rod (15-2). Multiple fixed connecting slide rods (1502) are provided, with each pair of fixed connecting slide rods (1502) forming a group. A group of fixed connecting slide rods (1502) is fixedly connected to both ends of the first connecting drive rod (15-1) and the second connecting drive rod (15-2). The fixed connecting slide rod (1502) located on the first connecting drive rod (15-1) is slidably connected to the first connecting hollow through groove (1301), and the other end is slidably connected to the third connecting hollow through groove (1401). One end of the fixed connecting slide rod (1502) located on the second connecting drive rod (15-2) is slidably connected to the second connecting hollow through groove (1302), and the other end is slidably connected to the fourth connecting hollow through groove (1402).

9. The ammonia injection grid turbulence device as described in claim 8, characterized in that: The quick-change mechanism further includes: a reset compression spring (16), which is disposed inside the turbulence mounting post (5); there are multiple reset compression springs (16), one end of each reset compression spring (16) is fixedly connected to the first quick-change pressing block (14-1), and the other end is fixedly connected to the second quick-change pressing block (14-2).

10. An ammonia-injected grid, characterized in that, Includes the ammonia injection grid turbulence device as described in any one of claims 1-9.

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