Denitration spray gun with protective sleeve mechanism

Abstract

The utility model discloses a denitration spray gun with a protective sleeve mechanism, which comprises a spray gun pipe provided with a baffle plate, a telescopic protective mechanism arranged on the baffle plate, and an overturning plugging mechanism connected to the telescopic protective mechanism, the telescopic protection mechanism comprises a fixing barrel and a hydraulic cylinder, the fixing barrel is arranged on the baffle and connected with the spray gun pipe, the fixing barrel is movably sleeved with a protection pipe, a telescopic spray pipe is movably arranged in the fixing barrel and connected with the protection pipe, and the hydraulic cylinder is arranged on the baffle and connected with the spray gun pipe. And the tail end of the hydraulic cylinder is connected with the protective pipe. The utility model belongs to the technical field of denitration spray guns, and particularly relates to a denitration spray gun with a protective sleeve mechanism, which can prolong the service life of the denitration spray gun.

Description

Technical Field

[0001] The utility model belongs to the technical field of denitration spray guns, in particular to a denitration spray gun with a protective sleeve mechanism. Background Art

[0002] Flue gas denitrification refers to the reduction of generated nitrogen oxides (nitric oxide, nitrogen dioxide, etc.) to N2 or neutralization reaction to generate nitrates, thereby removing nitrogen oxides from flue gas. The selective non-catalytic reduction (SNCR) denitrification process is currently the technology commonly used in the boiler flue gas denitrification process. The key to the technology is to install a spray gun at a specific position on the boiler wall, and the spray gun sprays the denitrification reducing agent into the furnace.

[0003] The patent with publication number CN218590918U discloses a retractable denitrification spray gun with a protective sleeve mechanism. The utility model sets an atomizing nozzle tube that slides inside a fixed sleeve, so that when the length of the atomizing nozzle needs to be adjusted, the atomizing nozzle tube can be slid from the inside of the fixed sleeve by pulling the sliding rod. After adjusting to a certain length, the adjusting knob can be tightened to fix the adjusting rod against the surface of the sliding rod, so as to adjust the length of the atomizing nozzle tube, making it more convenient for practical use.

[0004] However, when the above device is in use, it is unable to protect the spray gun extending into the furnace body, so that the spray gun is exposed to the harsh environment for a long time, which shortens the service life of the spray gun. Utility Model Content

[0005] The technical problem to be solved by the utility model is that it is inconvenient to protect the spray gun extending into the furnace body in the prior art, which affects the service life of the spray gun.

[0006] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: a denitrification spray gun with a protective sleeve mechanism, including a spray gun pipe, a baffle is provided on the spray gun pipe, and also includes a telescopic protection mechanism arranged on the baffle, and a flip sealing mechanism connected to the telescopic protection mechanism; the telescopic protection mechanism includes a fixed cylinder and a hydraulic cylinder, the fixed cylinder is arranged on the baffle, the fixed cylinder is connected to the spray gun pipe, a protective pipe is movably sleeved on the fixed cylinder, a telescopic nozzle is movably provided in the fixed cylinder, the telescopic nozzle is connected to the protective pipe, the hydraulic cylinder is arranged on the baffle, and the end of the hydraulic cylinder is connected to the protective pipe.

[0007] Furthermore, the flipping and blocking mechanism includes a motor and a sealing plate, the motor is arranged on the protective tube, a connecting shaft is arranged at the output end of the motor, the sealing plate is arranged at the end of the connecting shaft, and the sealing plate is arranged close to the end of the protective tube.

[0008] Furthermore, a limiting block and a limiting plate are provided on the bottom wall of the protection tube, and a limiting groove is provided on the limiting plate, and the shape of the limiting groove is consistent with the edge shape of the sealing plate.

[0009] Furthermore, a movable groove is provided in the protection tube, and the shape of the movable groove matches the shape of the fixed tube.

[0010] Preferably, the telescopic nozzle is connected to the fixed tube in a sliding and sealing manner.

[0011] Preferably, the motor is a forward and reverse motor.

[0012] The utility model adopts the above structure to achieve the following beneficial effects: the denitrification spray gun with a protective sleeve mechanism provided by the utility model can protect the nozzle when it is in use by arranging a protective tube on the telescopic nozzle, and at the same time will not affect the normal use of the telescopic nozzle. By arranging a sealing plate, when the telescopic nozzle is not in use, the end of the protective tube can be sealed to protect the telescopic nozzle, thereby preventing the denitrification spray gun from being exposed to harsh environments for a long time and affecting its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional diagram of the denitrification spray gun with a protective sleeve mechanism proposed by the utility model;

[0014] Figure 2 This is an internal structural diagram of the denitrification spray gun with a protective sleeve mechanism proposed by the utility model;

[0015] Figure 3 This is a structural diagram of the protective tube of the denitrification spray gun with a protective sleeve mechanism proposed by the utility model.

[0016] Among them, 1. spray gun tube, 2. baffle, 3. telescopic protection mechanism, 4. flip sealing mechanism, 5. fixed cylinder, 6. hydraulic cylinder, 7. protection tube, 8. telescopic nozzle, 9. motor, 10. sealing plate, 11. connecting shaft, 12. limit block, 13. limit plate, 14. limit slot, 15. movable slot. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. The present utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] like Figure 1-3 As shown, the denitrification spray gun with a protective sleeve mechanism proposed by the utility model includes a spray gun tube 1, a baffle 2 is provided on the spray gun tube 1, a telescopic protective mechanism 3 is provided on the baffle 2, and a flip sealing mechanism 4 connected to the telescopic protective mechanism 3; the telescopic protective mechanism 3 includes a fixed cylinder 5 and a hydraulic cylinder 6, the fixed cylinder 5 is provided on the baffle 2, the fixed cylinder 5 is connected to the spray gun tube 1, a protective tube 7 is movably sleeved on the fixed cylinder 5, a telescopic nozzle 8 is movably provided in the fixed cylinder 5, the telescopic nozzle 8 is slidingly sealedly connected to the fixed cylinder 5, the telescopic nozzle 8 is connected to the protective tube 7, the hydraulic cylinder 6 is provided on the baffle 2, the end of the hydraulic cylinder 6 is connected to the protective tube 7, the hydraulic cylinder 6 is started, the protective tube 7 is pushed to move, and the protective tube 7 drives the telescopic nozzle 8 to move, so that the spray distance can be adjusted for easy use.

[0020] like Figure 2-3 As shown, the flipping and blocking mechanism 4 includes a motor 9 and a sealing plate 10. The motor 9 is arranged on the protective tube 7. A connecting shaft 11 is provided at the output end of the motor 9. The sealing plate 10 is arranged at the end of the connecting shaft 11. The sealing plate 10 is arranged close to the end of the protective tube 7. A limit block 12 and a limit plate 13 are provided on the bottom wall of the protective tube 7. A limit slot 14 is provided on the limit plate 13. The shape of the limit slot 14 is consistent with the edge shape of the sealing plate 10. When the telescopic nozzle 8 is not spraying, the motor 9 is started to drive the connecting shaft 11 to rotate, and then drive the sealing plate 10 to rotate, so that the sealing plate 10 is buckled into the limit slot 14 to block the end of the protective tube 7, thereby preventing the harsh environment in the furnace body from corroding the telescopic nozzle 8.

[0021] A movable groove 15 is provided in the protection tube 7 , and the shape of the movable groove 15 matches the shape of the fixed tube 5 , so as to facilitate the movement and extension of the protection tube 7 .

[0022] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A denitrification spray gun with a protective sleeve mechanism, comprising a spray gun pipe, wherein a baffle is provided on the spray gun pipe, and wherein: It also includes a telescopic protection mechanism arranged on the baffle plate, and a flip blocking mechanism connected to the telescopic protection mechanism; the telescopic protection mechanism includes a fixed cylinder and a hydraulic cylinder, the fixed cylinder is arranged on the baffle plate, the fixed cylinder is connected to the spray gun tube, a protective tube is movably sleeved on the fixed cylinder, a telescopic nozzle is movably arranged in the fixed cylinder, the telescopic nozzle is connected to the protective tube, the hydraulic cylinder is arranged on the baffle plate, and the end of the hydraulic cylinder is connected to the protective tube.

2. The denitrification spray gun with a protective sleeve mechanism according to claim 1, characterized in that: The flipping and blocking mechanism includes a motor and a sealing plate. The motor is arranged on the protection tube. A connecting shaft is arranged at the output end of the motor. The sealing plate is arranged at the end of the connecting shaft. The sealing plate is arranged close to the end of the protection tube.

3. The denitrification spray gun with a protective sleeve mechanism according to claim 2, characterized in that: A limiting block and a limiting plate are provided on the bottom wall of the protection tube, and a limiting groove is provided on the limiting plate. The shape of the limiting groove is consistent with the edge shape of the sealing plate.

4. The denitrification spray gun with a protective sleeve mechanism according to claim 3, characterized in that: A movable groove is arranged in the protection tube, and the shape of the movable groove is consistent with the shape of the fixed tube.

5. The denitrification spray gun with a protective sleeve mechanism according to claim 4, characterized in that: The telescopic nozzle is connected to the fixed tube in a sliding and sealing manner.

6. The denitrification spray gun with a protective sleeve mechanism according to claim 5, characterized in that: The motor is a forward and reverse motor.

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