Adjusting device for adjusting the position of an ammonia injection lance

Abstract

The utility model discloses an adjusting device for adjusting ammonia injection lance position relates to flue gas denitration technical field, include: guide rail subassembly, install in the inside of flue, for realizing the movement of ammonia injection lance in vertical direction and horizontal direction, sliding block subassembly set up on guide rail subassembly, sliding support, fixedly set up on sliding block subassembly are used for carrying and fixed ammonia injection lance, drive subassembly cooperate with guide rail subassembly and sliding block subassembly, for driving sliding support and sliding block subassembly along guide rail subassembly moves, it has the advantage that can realize the accurate controllable movement and the fine adjustment of spray angle of ammonia injection lance in vertical, horizontal direction.

Description

Technical Field

[0001] This utility model belongs to the field of flue gas denitrification technology, and more specifically it relates to an adjustment device for adjusting the position of the ammonia spray gun. Background Technology

[0002] In the fields of waste incineration and thermal power generation, flue gas denitrification commonly employs selective non-catalytic reduction (SNCR) by injecting ammonia or urea solution into the high-temperature flue to reduce nitrogen oxides (NOx). The installation location, injection direction, and atomization quality of the ammonia injection nozzle are key factors determining the denitrification efficiency.

[0003] In the current project, referring to the "Standard for Pollution Control of Municipal Solid Waste Incineration" GB18485-2014, the spray gun was originally located in the upper layer of the flue. During the project modification, the inventor found that the urea solution was not atomized evenly and the reaction was insufficient, resulting in an emission concentration as high as 100mg / Nm³. This caused problems such as acid corrosion of the flue gas duct, shortened equipment life, system air leakage and increased energy consumption (increased power consumption of the induced draft fan).

[0004] Furthermore, existing ammonia spray guns generally use welding or bolt fixing methods, which are simple in structure but have limited adjustment capabilities. When it is necessary to change the spray height, spray angle, or nozzle installation posture, it is usually necessary to stop the machine, disassemble, or even re-weld, resulting in long maintenance cycles and inaccurate adjustments.

[0005] Therefore, there is an urgent need for an adjustment device to adjust the position of the ammonia spray gun and solve the above problems. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an adjustment device for adjusting the position of the ammonia spray gun, which has the advantages of enabling precise and controllable movement of the ammonia spray gun in the vertical and horizontal directions and fine adjustment of the spray angle.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An adjusting device for adjusting the position of an ammonia injection gun includes: a guide rail assembly installed inside the flue for moving the ammonia injection gun in the vertical and horizontal directions; a slider assembly disposed on the guide rail assembly; a sliding bracket fixedly disposed on the slider assembly for supporting and fixing the ammonia injection gun; and a drive assembly cooperating with the guide rail assembly and the slider assembly for driving the sliding bracket and the slider assembly to move along the guide rail assembly.

[0009] The advantages of this solution are at least as follows: In response to the problem in the existing technology that the ammonia spray gun installed in the flue has a fixed position and cannot be adjusted according to the actual working conditions, resulting in a single spray position, this solution sets up a guide rail assembly inside the flue, and combines it with a slider assembly, a sliding bracket and a drive assembly, so that the spray gun can achieve precise and controllable movement in the vertical and horizontal directions.

[0010] During actual operation, the drive component drives the slider to slide smoothly along the vertical and horizontal guide rails respectively, and the sliding bracket moves synchronously, so that the ammonia spray gun can adjust its spray position in a timely manner according to the changes in the flue gas flow field in the flue; thus effectively avoiding the problem of excessive ammonia in local areas caused by fixed spray points in the existing technology, significantly improving the mixing uniformity of ammonia and flue gas, and greatly improving the denitrification reaction efficiency.

[0011] The present invention is further configured such that the guide rail assembly includes: two vertical guide rails and one horizontal guide rail;

[0012] The slider assembly includes two first sliders and one second slider; the horizontal guide rail is slidably mounted on the two vertical guide rails via the two first sliders respectively; the sliding bracket is slidably disposed on the horizontal guide rail via the second slider.

[0013] The advantages of this scheme are at least as follows: by setting two vertical guide rails and one horizontal guide rail, and using a composite sliding structure of two first sliders and one second slider, the horizontal guide rail can move vertically, and the sliding bracket can move horizontally. During operation, the first slider drives the horizontal guide rail to rise and fall as a whole, and the second slider drives the ammonia injection gun to move laterally along the horizontal guide rail. This allows the ammonia injection gun to achieve stable position adjustment within the flue space under the action of the sliding bracket, thereby solving the problems of insufficient adjustment freedom and difficulty in adjustment of the ammonia injection gun in the prior art, and making the position of ammonia injection by the ammonia injection gun more flexible.

[0014] The present invention is further configured such that the horizontal guide rail is rotatably mounted on the two first sliders via an angle adjustment component;

[0015] The angle adjustment component includes:

[0016] A drive motor is mounted on the first slider;

[0017] The worm gear is connected to the output shaft of the drive motor via a coupling;

[0018] The worm gear meshes with the worm and is connected to both ends of the horizontal guide rail via a rotating shaft.

[0019] The advantages of this solution are at least as follows: In response to the problem that the position of the ammonia spray gun is fixed in the existing technology and the spray angle cannot be finely adjusted, by setting an angle adjustment component consisting of a drive motor, worm gear and worm wheel between the first slider and the horizontal guide rail, the horizontal guide rail can achieve continuous and fine angle adjustment with its axis as the rotation center.

[0020] During operation, the drive motor drives the worm gear to rotate through the coupling, and the worm gear meshes with the worm wheel to achieve low-speed, high-torque output. This allows the horizontal guide rail to complete the angle fine-tuning stably and smoothly, so that the spray gun's spray direction can be adaptively adjusted with the mainstream direction of the flue gas. This avoids the problem of excessive or insufficient ammonia injection in local areas due to injection deviation, and also avoids the problem of ammonia injection scouring the inner wall of the flue. It increases the contact opportunity between ammonia and NOx, making the denitrification reaction more complete and uniform.

[0021] The present invention is further configured such that: the sliding bracket includes: a mounting plate and a spray gun interface connected to the mounting plate; the spray gun interface includes a lower support plate fixed to the front end of the sliding bracket and an upper support plate disposed on the lower support plate;

[0022] Both the upper support plate and the lower support plate are provided with semi-circular receiving grooves. The semi-circular receiving grooves on the upper support plate and the lower support plate are arranged opposite to each other and form a circular mounting cavity for accommodating the ammonia spray gun.

[0023] The inner wall of the semi-circular receiving groove is provided with a U-shaped mounting groove, and a gasket assembly is detachably installed in the U-shaped mounting groove.

[0024] The upper support plate is connected and fixed to the lower support plate by a locking device.

[0025] The advantages of this scheme are at least as follows: In order to facilitate the adaptation of the spray gun interface to spray guns of different diameters, a circular mounting cavity is formed by combining an upper support plate and a lower support plate. The mounting cavity is provided with a pair of semi-circular receiving grooves, and a U-shaped mounting groove is set in the receiving grooves. A replaceable gasket assembly is installed inside, so that the spray gun interface has the ability to adapt to multiple specifications.

[0026] During actual assembly, the ammonia spray gun is fixed in the receiving groove by the gasket assembly, and the upper support plate is firmly connected to the lower support plate by the locking device. The clamping force forms a reliable clamping force, which not only ensures the stable positioning of the spray gun, but also allows for easy replacement of the corresponding gasket when changing the spray gun.

[0027] The present invention is further configured such that a pinhole adjustment groove is provided at the spray gun interface.

[0028] The advantages of this scheme are at least as follows: by setting a pinhole adjustment groove at the spray gun interface, the ammonia spray gun can still be finely adjusted in a small amount of position or angle after the initial fixation is completed, which facilitates the precise optimization of the atomization opening, spray direction and atomization uniformity of the spray gun pinhole.

[0029] The present invention is further configured such that: the gasket assembly includes a plurality of cylindrical gaskets, any two cylindrical gaskets have the same outer diameter but different inner diameters, and the outer diameter of each cylindrical gasket matches the U-shaped mounting groove; each cylindrical gasket has an axially penetrating opening on its side wall, and the cylindrical gasket is detachably installed in the U-shaped mounting groove.

[0030] The advantages of this scheme are at least as follows: In order to facilitate quick replacement of ammonia spray guns of different diameters, the gasket assembly adopts a design of multiple cylindrical gaskets and can be detachably installed in the U-shaped mounting groove. Each cylindrical gasket has a different inner diameter but the same outer diameter, and has a certain degree of elasticity in the radial direction due to its open structure. When using it, the appropriate gasket assembly can be flexibly selected to adapt to ammonia spray guns of various specifications as needed.

[0031] In practical use, the operator can select a cylindrical gasket with a corresponding inner diameter according to the outer diameter of the spray gun. The outer diameter matches the mounting groove to achieve stable positioning, while the open structure ensures that the assembly and disassembly process can be completed without complicated tools; thus achieving the effect of universal compatibility of the spray gun interface.

[0032] The present invention is further configured such that: a plurality of support columns are provided between the lower support plate and the sliding bracket, the support columns are arranged along the inclined direction and are respectively connected to the lower support plate and the sliding bracket.

[0033] The advantages of this scheme are at least as follows: the inclined arrangement of the support column and the connection between the lower support plate and the sliding bracket not only enhances the stability of the overall structure, but also reduces the impact of vibration on the operation of the ammonia spray gun, ensuring the smoothness of the spraying process.

[0034] The present invention is further configured to include a locking device, the locking device comprising at least one locking unit, the locking unit being disposed on the first slider or the second slider, and the end of the locking unit being provided with a clamping block.

[0035] The advantages of this scheme are at least as follows: In order to prevent the slider assembly from loosening or shifting under high temperature and vibration after adjustment, a locking unit is set inside the first or second slider, and a clamping block that can contact the guide rail surface is set at its end. After the slider reaches the target position, the clamping block applies a reliable mechanical locking force, ensuring that the spray gun can maintain a precise position for a long time after adjustment.

[0036] The present invention is further configured to include: a position detection component, used to detect and provide feedback on the position of the ammonia spray gun in real time.

[0037] The advantages of this scheme are at least as follows: by setting up a position detection component, the vertical and horizontal positions of the ammonia spray gun can be collected in real time and fed back to the control system; the control system can combine the flue gas distribution information provided by the smoke detection component in the flue to automatically adjust the movement of the drive component and the guide rail component, so that the sliding bracket and the ammonia spray gun on it can move quickly and accurately to the target flue gas area, thereby achieving ammonia spraying operation with high positioning accuracy.

[0038] The present invention is further configured such that the guide rail assembly, slider assembly, sliding bracket, gasket assembly and angle adjustment assembly are all made of corrosion-resistant metal materials.

[0039] The advantages of this solution are at least as follows: by using corrosion-resistant metal materials to manufacture the guide rail assembly, slider assembly, sliding bracket, shim assembly, and angle adjustment assembly, it possesses long-term anti-oxidation, anti-corrosion, and anti-wear properties.

[0040] In summary, this utility model has at least the following advantages:

[0041] 1. By installing a guide rail assembly consisting of two vertical guide rails and one horizontal guide rail inside the flue, combined with a composite sliding mechanism consisting of two first sliders and one second slider, the ammonia injection gun can achieve large-stroke, continuous, and controllable movement in both the vertical and horizontal directions. This not only allows the installation position of the ammonia injection gun to be dynamically adjusted according to changes in the flue gas flow field, but also significantly improves the problems of fixed gun position and limited spray area in existing technologies, thereby increasing the flexibility of the spray arrangement and the denitrification efficiency.

[0042] 2. By incorporating an angle adjustment assembly consisting of a drive motor, worm gear, and worm wheel, the horizontal guide rail and its spray gun can be continuously and precisely adjusted in angle. This allows the spray direction to adaptively follow the mainstream direction of the flue gas, effectively avoiding the problems of ammonia liquid impacting the flue wall and excessive local ammonia levels, ensuring more sufficient contact between ammonia and NOx;

[0043] 3. By setting up a spray gun interface formed by the combination of upper and lower support plates and a detachable gasket assembly (several cylindrical gaskets), the multi-specification adaptability of the ammonia spray gun interface is achieved. When changing spray guns of different diameters, only the corresponding gaskets need to be replaced, which greatly simplifies the assembly and maintenance process and improves the equipment's versatility and ease of maintenance;

[0044] 4. By setting up a position detection component, the position and orientation information of the ammonia injection gun can be fed back to the control system in real time, realizing automated and high-precision adjustment of the gun position and angle. This enables ammonia injection operations to quickly and accurately adapt to complex flue gas flow fields, significantly improving the response speed and accuracy of the denitrification control system. Attached Figure Description

[0045] Figure 1 This is an overall schematic diagram of this embodiment;

[0046] Figure 2 This is an exploded view of the horizontal guide rail in this embodiment after it is engaged with the first slider, the sliding bracket, and the angle adjustment assembly.

[0047] Figure 3 This is a partial exploded view of the sliding bracket in this embodiment;

[0048] Figure 4 This is a perspective sectional view of the first slider, angle adjustment component, and locking device in this embodiment;

[0049] Figure 5 This is a schematic diagram of the upper support plate in this embodiment.

[0050] Reference numerals: 1. Guide rail assembly; 101. Vertical guide rail; 102. Horizontal guide rail; 2. Slider assembly; 201. First slider; 202. Second slider; 3. Sliding bracket; 301. Mounting plate; 302. Spray gun interface; 3021. Upper support plate; 3022. Lower support plate; 3023. Semi-circular receiving groove; 3024. U-shaped mounting groove; 4. Gasket assembly; 401. Cylindrical gasket; 4011. Opening; 5. Angle adjustment assembly; 501. Drive motor; 502. Worm gear; 503. Worm wheel; 6. Pinhole adjustment groove; 7. Support column; 8. Locking device; 801. Locking unit; 802. Clamping block. Detailed Implementation

[0051] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments of this utility model and the features within them can be combined with each other.

[0052] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0053] Example 1

[0054] like Figure 1 As shown, the adjusting device for adjusting the position of the ammonia spray gun includes: a guide rail assembly 1, installed inside the flue, for moving the ammonia spray gun in the vertical and horizontal directions; a slider assembly 2, disposed on the guide rail assembly 1; a sliding bracket 3, fixedly disposed on the slider assembly 2, for supporting and fixing the ammonia spray gun; and a drive assembly, cooperating with the guide rail assembly 1 and the slider assembly 2, for driving the sliding bracket 3 and the slider assembly 2 to move along the guide rail assembly 1.

[0055] Furthermore, the guide rail assembly 1 includes two vertical guide rails 101 and one horizontal guide rail 102; the slider assembly 2 includes two first sliders 201 and one second slider 202; the horizontal guide rail 102 is slidably mounted on the two vertical guide rails 101 via the two first sliders 201 respectively; the sliding bracket 3 is slidably disposed on the horizontal guide rail 102 via the second slider 202;

[0056] like Figure 1 As shown, the vertical guide rail 101 is a metal guide rail with a rectangular or square cross section. The first slider 201 that cooperates with it is a hollow sleeve structure. The interior of the first slider 201 forms a rectangular through groove that matches the cross section of the vertical guide rail 101. The groove and the vertical guide rail 101 are fitted with a micro-gap. The surface of the vertical guide rail 101 can be coated with a ceramic coating, or a wear-resistant liner can be provided, or other self-lubricating materials (such as PEFE (polytetrafluoroethylene)) can be used.

[0057] The horizontal guide rail 102 also uses the same metal guide rail as the vertical guide rail 101, and is fixedly connected between the two first sliders 201. The second slider 202 has a rectangular groove inside, and the groove cross section matches the horizontal guide rail 102, so that the second slider 202 can move laterally along the horizontal guide rail 102. The surface of the horizontal guide rail 102 is also coated with a ceramic coating, or a wear-resistant lining is provided, or other self-lubricating materials (such as PEFE (polytetrafluoroethylene)) are used.

[0058] In some other embodiments, the vertical guide rail 101 and the horizontal guide rail 102 may also adopt a dovetail guide rail structure. Specifically, the bodies of the vertical guide rail 101 and the horizontal guide rail 102 have a dovetail-shaped cross section, and the first slider 201 and the second slider 202 that cooperate with it form a dovetail groove structure inside. Alternatively, a T-shaped guide rail structure may be adopted, in which the bodies of the vertical guide rail 101 and the horizontal guide rail 102 have a T-shaped cross section, and the first slider 201 and the second slider 202 that cooperate with it form a dovetail groove structure inside.

[0059] The drive components are respectively engaged with the vertical guide rail 101 and the horizontal guide rail 102 to drive the corresponding sliders to move. Specifically, the vertical drive component includes a vertical lead screw, a lead screw motor, and a nut seat. The vertical lead screw is arranged parallel to the vertical guide rail 101 and supported by a bearing assembly. The nut seat is fixedly installed on the first slider 201. The lead screw motor drives the vertical lead screw to rotate, so that the nut seat moves up and down along the vertical guide rail 101 with the lead screw transmission, thereby driving the horizontal guide rail 102 and the second slider 202 to move up and down as a whole.

[0060] The horizontal drive assembly includes a horizontal lead screw, a lead screw support, and a slider-nut structure. The horizontal lead screw is arranged parallel to the horizontal guide rail 102 and fixed by the support at both ends. A nut structure is provided inside or at the bottom of the second slider 202. The lead screw motor drives the horizontal lead screw to rotate, causing the nut structure to move the second slider 202 laterally along the horizontal guide rail 102, thereby adjusting the horizontal position of the ammonia spray gun.

[0061] To ensure the adjustability of the ammonia spray gun even in the event of a power outage or drive component failure, a manual adjustment device is provided on the drive component. Specifically, the manual adjustment device can be located on the vertical drive component and the horizontal drive component, and preferably includes: a manual crank (or circular handle), a manual shaft, and an auxiliary gear that meshes with the drive mechanism. The manual crank is connected to the manual shaft via a threaded connection or a plug-in connection structure. The other end of the manual shaft is fixed to the auxiliary gear, which meshes with the vertical drive screw or the horizontal drive screw.

[0062] In actual operation, the drive component drives the slider component 2 to slide smoothly along the vertical guide rail 101 and the horizontal guide rail 102 respectively, and the sliding bracket 3 moves synchronously. Specifically, the first slider 201 drives the horizontal guide rail 102 to rise and fall as a whole, and the second slider 202 drives the spray gun to move laterally along the horizontal guide rail 102, so that the ammonia spray gun can achieve stable position adjustment in the flue space under the drive of the sliding bracket 3, so that the ammonia spray gun can adjust its injection position in a timely manner according to the changes in the flue gas flow field in the flue. This effectively avoids the problems of excessive ammonia in local areas caused by fixed injection points in the prior art, as well as insufficient adjustment freedom and difficulty of ammonia spray gun adjustment, significantly improves the mixing uniformity of ammonia and flue gas, greatly improves the denitrification reaction efficiency, and makes the ammonia spray position of the ammonia spray gun more flexible.

[0063] like Figure 2 As shown (refer to) Figure 4In some embodiments, in order to facilitate the adjustment of the spray angle of the ammonia spray gun and to avoid the problem of the inner wall surface of the flue being washed by the sprayed ammonia, the horizontal guide rail 102 is rotatably mounted on the two first sliders 201 by the angle adjustment component 5, so as to realize the angle adjustment of the horizontal guide rail 102 and the ammonia spray gun on it within a certain range, so as to adapt to the spraying requirements of different directions and different working conditions in the flue.

[0064] Specifically, the angle adjustment component 5 includes a drive motor 501, a worm gear 502, and a worm wheel 503. The drive motor 501 is fixedly mounted on the first slider 201, and its output shaft is connected to the worm gear 502 via a coupling. When the drive motor 501 is working, it drives the worm gear 502 to rotate. The worm gear 502 meshes with the worm wheel 503 for transmission. The center of the worm wheel 503 is fixedly connected to the end of the horizontal guide rail 102 via a rotating shaft, so that the rotation of the worm wheel 503 can directly realize continuous and precise angle adjustment of the horizontal guide rail 102. At the same time, since the worm gear 502 transmission has self-locking properties, it can keep the horizontal guide rail 102 stable at the current angle position after the drive motor 501 stops, and will not deviate due to airflow disturbance inside the flue or its own weight, thereby ensuring the stability and accuracy of the ammonia spray gun's spray direction.

[0065] Example 2

[0066] like Figure 2 , Figure 3 , Figure 5 As shown, in order to facilitate the spray gun interface 302 to be adapted to spray guns of different diameters, in some preferred embodiments, the sliding bracket 3 adopts several adjustable clamping structures. Specifically, the sliding bracket 3 includes: a mounting plate 301 and a spray gun interface 302 connected to the mounting plate 301.

[0067] The spray gun interface 302 includes a lower support plate 3022 fixed to the front end of the sliding bracket 3, and an upper support plate 3021 disposed on the lower support plate 3022. The upper support plate 3021 is connected and fixed to the lower support plate 3022 by a locking member, so that the upper support plate 3021 can be disassembled or opened, thereby facilitating the clamping of the ammonia spray gun. Both the upper support plate 3021 and the lower support plate 3022 are provided with semi-circular receiving grooves 3023. The semi-circular receiving grooves 3023 on the support plate 3022 are arranged opposite each other and form a circular mounting cavity for accommodating the ammonia spray gun; the upper support plate 3021 on the lower support plate 3022 is provided with several through holes, and the locking element can be the cooperation between the locking bolt and the locking nut. By inserting the locking bolt into the through hole of the upper support plate 3021 on the lower support plate 3022 and installing the locking nut on the locking bolt, the upper support plate 3021 on the lower support plate 3022 is locked and fixed.

[0068] In order to further improve the adaptability of the spray gun interface 302 to ammonia spray guns of different diameters, a U-shaped mounting groove 3024 is provided on the inner wall of the semi-circular receiving groove 3023, and a gasket assembly 4 is detachably installed in the U-shaped mounting groove 3024.

[0069] The gasket assembly 4 includes a plurality of cylindrical gaskets 401, any two cylindrical gaskets 401 having the same outer diameter but different inner diameters, and the outer diameter of each cylindrical gasket 401 mates with the U-shaped mounting groove 3024; each cylindrical gasket 401 has an axially penetrating opening 4011 on its side wall, and the cylindrical gasket 401 can be detachably installed in the U-shaped mounting groove 3024.

[0070] During actual assembly, the ammonia spray gun is fixed in the receiving groove by the gasket assembly 4. The upper support plate 3021 is firmly connected to the lower support plate 3022 by the locking device. The clamping force forms a reliable clamping force, which not only ensures the stable positioning of the spray gun, but also allows for easy replacement of the spray gun by simply replacing the corresponding gasket. Specifically, the operator can select a cylindrical gasket 401 with a corresponding inner diameter according to the outer diameter of the spray gun. The outer diameter of the gasket matches the U-shaped mounting groove 3024 to achieve stable positioning. The structure of the opening 4011 ensures that the assembly and disassembly process can be completed without complicated tools, thus achieving the effect of universal compatibility of the spray gun interface 302. The ammonia spray gun has a relatively smooth surface. To prevent the ammonia spray gun from slipping after the upper support plate 3021, lower support plate 3022 and cylindrical gasket 401 are clamped, the cylindrical gasket 401 in contact with the ammonia spray gun can be sanded, or an anti-slip pad can be laid on the inner surface of the cylindrical gasket 401. The anti-slip pad can be made of rubber or silicone.

[0071] In some preferred embodiments, in order to facilitate the adjustment of the atomization effect of the ammonia spray gun, a pinhole adjustment groove 6 is provided at the spray gun interface 302, so that the ammonia spray gun can still be finely adjusted in position or angle after the initial fixation is completed, thereby facilitating the precise optimization of the atomization opening, spray direction and atomization uniformity of the spray gun pinhole.

[0072] To reduce the impact of vibration on the operation of the ammonia spray gun, several support columns 7 are provided between the lower support plate 3022 and the sliding bracket 3. The support columns 7 are arranged in an inclined direction and are respectively connected to the lower support plate 3022 and the sliding bracket 3. The installation of the support columns 7 not only enhances the stability of the overall structure, but also ensures the smoothness of the spraying process.

[0073] In other preferred embodiments, to further reduce the vibration impact of the ammonia spray gun during operation caused by flue gas flow disturbance, drive mechanism operation, or device resonance, a shock-absorbing structure can be added between the sliding bracket 3 and the second slider 202. Specifically, an elastic shock-absorbing pad can be provided between the mounting plate 301 of the sliding bracket 3 and the connecting surface of the second slider 202. The shock-absorbing pad can be made of high-temperature resistant, damping-performance silicone rubber, fluororubber, or composite rubber materials.

[0074] Example 3

[0075] like Figure 2 As shown, in order to prevent the slider assembly 2 from loosening or shifting under high temperature and vibration after adjustment, the adjustment device further includes a locking device 8. The locking device 8 includes at least one locking unit 801. The locking unit 801 is disposed on the first slider 201 or the second slider 202, and the end of the locking unit 801 is provided with a clamping block 802. Specifically, the locking unit 801 is fixed to the outer wall of the first slider 201 and the second slider 202 by a mounting bracket, and the output end of the locking unit 801 is set towards the first slider 201 and the second slider 202.

[0076] The locking unit 801 can be an electric actuator or a cylinder. The output end of the electric actuator or cylinder is connected to a clamping block 802. The clamping block 802 can extend and retract outward along the guide holes provided inside the first slider 201 and the second slider 202. Taking the first slider 201 as an example, when the locking unit 801 is installed inside the first slider 201, the protruding end of the clamping block 802 extends from the side wall of the slider to the vertical guide rail 101 and abuts tightly against the outer side of the vertical guide rail 101. Similarly, when the locking unit 801 is installed inside the second slider 202, the clamping block 802 extends out and abuts against the side wall of the horizontal guide rail 102, thereby fixing the slider assembly 2 in the corresponding direction.

[0077] In some preferred embodiments, the surface of the clamping block 802 that contacts the vertical guide rail 101 and the horizontal guide rail 102 may also be covered with anti-slip pads with anti-slip texture, thereby increasing the friction between the clamping block 802 and the vertical guide rail 101 and the horizontal guide rail 102.

[0078] In order to enable the control system to monitor the actual position of the ammonia spray gun in the vertical and horizontal directions in real time, thereby achieving precise control of the spray gun's trajectory, the adjustment device is equipped with a position detection component, which is electrically connected to the smoke detection component in the flue and the control system. The position detection component can be a position sensor installed on the guide rail structure. Specifically, the position detection component can be a magnetostrictive displacement sensor, specifically the MTL-R series magnetostrictive position sensor.

[0079] By setting up a position detection component, the control system can combine the flue gas distribution information provided by the smoke detection component in the flue to automatically adjust the movement of the drive component and the guide rail component 1, so that the sliding bracket 3 and the ammonia spray gun on it can move quickly and accurately to the target flue gas area, thereby achieving ammonia spraying operation with high positioning accuracy.

[0080] The guide rail assembly 1, slider assembly 2, sliding bracket 3, gasket assembly 4 and angle adjustment assembly 5 are all made of corrosion-resistant metal materials to improve the long-term stability and service life of the overall device under high temperature, high humidity and ammonia-containing conditions. Specifically, the vertical guide rail 101 and the horizontal guide rail 102 are preferably made of 304 stainless steel or 316L stainless steel rectangular metal profiles.

[0081] The main body of the first slider 201 and the second slider 202 can be made of 7075 aluminum alloy or stainless steel with integral precision machining structure, and wear-resistant copper sleeve or PTFE (polytetrafluoroethylene) composite slider can be embedded in the sliding contact surface, which can reduce wear and noise while ensuring guiding accuracy.

[0082] The sliding bracket 3 and its spray gun interface 302 assembly (including the upper support plate 3021, the lower support plate 3022 and the receiving groove structure) are preferably made of stainless steel aluminum alloy material to ensure that no corrosion, fatigue or deformation occurs in the long-term contact with ammonia flue gas environment.

[0083] Among them, the gasket assembly 4 can be made of high-temperature resistant and corrosion-resistant fluororubber (FKM) or polytetrafluoroethylene (PTFE) material;

[0084] Among them, the worm gear 502 and worm wheel 503 mechanism in the angle adjustment component 5 are preferably made of 40Cr tempered steel or stainless steel, and their corrosion resistance is enhanced by surface carburizing, nitriding or nickel plating. The housing of the drive motor 501 is also made of corrosion-resistant metal material to adapt to the long-term high humidity environment of the denitrification system.

[0085] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0086] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An adjusting device for adjusting the position of an ammonia spray gun, characterized in that, include: The guide rail assembly (1) is installed inside the flue and is used to enable the ammonia spray gun to move in the vertical and horizontal directions; the slider assembly (2) is disposed on the guide rail assembly (1); The sliding bracket (3) is fixedly mounted on the slider assembly (2) and is used to support and fix the ammonia spray gun; the driving assembly cooperates with the guide rail assembly (1) and the slider assembly (2) and is used to drive the sliding bracket (3) and the slider assembly (2) to move along the guide rail assembly (1).

2. The adjusting device for adjusting the position of the ammonia spray gun according to claim 1, characterized in that: The guide rail assembly (1) includes: two vertical guide rails (101) and one horizontal guide rail (102). The slider assembly (2) includes two first sliders (201) and one second slider (202); the horizontal guide rail (102) is slidably mounted on the two vertical guide rails (101) respectively via the two first sliders (201); the sliding bracket (3) is slidably mounted on the horizontal guide rail (102) via the second slider (202).

3. The adjusting device for adjusting the position of the ammonia spray gun according to claim 2, characterized in that: The horizontal guide rail (102) is rotatably mounted on the two first sliders (201) via the angle adjustment assembly (5); The angle adjustment component (5) includes: A drive motor (501) is mounted on the first slider (201); The worm gear (502) is connected to the output shaft of the drive motor (501) via a coupling; The worm gear (503) meshes with the worm (502) and is connected to both ends of the horizontal guide rail (102) via a rotating shaft.

4. The adjusting device for adjusting the position of the ammonia spray gun according to claim 1, characterized in that: The sliding bracket (3) includes: a mounting plate (301) and a spray gun interface (302) connected to the mounting plate (301); the spray gun interface (302) includes a lower support plate (3022) fixed to the front end of the sliding bracket (3) and an upper support plate (3021) disposed on the lower support plate (3022). Both the upper support plate (3021) and the lower support plate (3022) are provided with semi-circular receiving grooves (3023). The semi-circular receiving grooves (3023) on the upper support plate (3021) and the lower support plate (3022) are arranged opposite to each other and form a circular mounting cavity for accommodating the ammonia spray gun. The inner wall of the semi-circular receiving groove (3023) is provided with a U-shaped mounting groove (3024), and a gasket assembly (4) is detachably installed in the U-shaped mounting groove (3024). The upper support plate (3021) is connected and fixed to the lower support plate (3022) by a locking member.

5. The adjusting device for adjusting the position of the ammonia spray gun according to claim 4, characterized in that: The spray gun interface (302) is provided with a pinhole adjustment groove (6).

6. The adjusting device for adjusting the position of the ammonia spray gun according to claim 4, characterized in that: The gasket assembly (4) includes several cylindrical gaskets (401), any two cylindrical gaskets (401) have the same outer diameter but different inner diameters, and the outer diameter of each cylindrical gasket (401) matches the U-shaped mounting groove (3024); each cylindrical gasket (401) has an axially penetrating opening (4011) on its side wall, and the cylindrical gasket (401) can be detachably installed in the U-shaped mounting groove (3024).

7. The adjusting device for adjusting the position of the ammonia spray gun according to claim 4, characterized in that: A number of support columns (7) are provided between the lower support plate (3022) and the sliding bracket (3). The support columns (7) are arranged in an inclined direction and are respectively connected to the lower support plate (3022) and the sliding bracket (3).

8. The adjusting device for adjusting the position of the ammonia spray gun according to claim 2, characterized in that: Also includes: The locking device (8) includes at least one locking unit (801), which is disposed on the first slider (201) or the second slider (202), and the end of the locking unit (801) is provided with a clamping block (802).

9. The adjusting device for adjusting the position of the ammonia spray gun according to claim 1, characterized in that: Also includes: The position detection component is used to detect and provide feedback on the position of the ammonia spray gun in real time.

10. The adjusting device for adjusting the position of the ammonia spray gun according to claim 1, characterized in that: The guide rail assembly (1), slider assembly (2), sliding bracket (3), gasket assembly (4) and angle adjustment assembly (5) are all made of corrosion-resistant metal materials.

Images