Automatic spraying device of thermal power plant denitration system hydrolyzer

Abstract

The utility model discloses an automatic spraying device of a thermal power plant denitration system hydrolyzer, which comprises a hydrolyzer, one side of a side mounting plate is communicated and provided with a side spraying head, the rear side of a collecting tank is communicated and provided with a blow-off pipeline, and the blow-off pipeline is communicated and provided with a regulating valve. According to the automatic spraying device of the thermal power plant denitration system hydrolyzer, the hydrolyzer can be wrapped and supported through the mounting frame, effective protection can be achieved, and the auxiliary mounting frame and the mounting frame can be rapidly combined and used in an extending mode through the magnetic splicing blocks, the magnetic splicing grooves, the mounting insertion blocks, the mounting insertion grooves and the locking rotary knobs; the ammonia gas detector can be used for detecting leakage of ammonia gas, the water pump can be started, the hydrolyzer is wrapped and sprayed through the side spraying head and the upper spraying head, ammonia gas in the air is rapidly absorbed, and the ammonia gas hydrolyzer is safe to use and capable of being installed in a communicating mode through the communicating pipe, the communicating cover and the communicating connector, so that the adaptability is better. The ammonia gas detector can detect leakage of the ammonia gas, and the water pump can be started to wrap and spray the hydrolyzer through the side spraying head and the upper spraying head.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying a hydrolyzer of a denitration system, in particular to an automatic spraying device for a hydrolyzer of a denitration system of a thermal power plant. Background Art

[0002] Thermal power plant denitrification systems remove NOx (nitrogen oxides) from flue gas, reducing atmospheric harm. Liquid ammonia, widely used in thermal power plants, is corrosive and volatile, forming explosive mixtures with air. Exposure to open flames can easily cause physical and chemical explosions. Ammonia is a toxic gas, and mild inhalation can lead to rhinitis, pharyngitis, tracheitis, and bronchitis. Severe inhalation can cause laryngeal edema, glottic stenosis, and respiratory mucosal detachment, leading to tracheal obstruction and potentially life-threatening suffocation. Therefore, denitrification is now performed after urea thermal decomposition.

[0003] Therefore, in coal-fired units where the denitrification device adopts the selective catalytic reduction (SCR) method and the reducing agent is liquid ammonia in thermal power plants, it is necessary to transform the liquid ammonia into urea hydrolysis to produce ammonia.

[0004] The existing CN116212628A is a method for installing and constructing a urea hydrolysis system for denitrification in a thermal power plant. It provides construction guidance for construction in relatively narrow spaces such as the original pipe gallery, so as to minimize technical problems in the construction of the denitrification liquid ammonia to urea project. The construction operation is simple and easy to master, and it has strong reference and guiding significance for the denitrification transformation of similar units. However, there are still some shortcomings. The existing equipment has poor treatment efficiency after ammonia leakage and is not convenient. It cannot be used in modular combinations and is inconvenient to use. Therefore, an automatic spraying device for the hydrolyzer of the denitrification system of a thermal power plant is needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic spraying device for a hydrolyzer of a denitrification system of a thermal power plant, so as to solve the problems mentioned in the above background technology that the installation and construction method of ammonia production system using urea hydrolysis method for denitrification of a thermal power plant is not efficient after ammonia leakage, is not convenient, and cannot be used in modular combination, which is inconvenient to use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic sprinkler device for a hydrolyzer in a denitrification system of a thermal power plant, comprising a hydrolyzer, a mounting frame being mounted on the outer wall of the hydrolyzer, and an auxiliary mounting frame being mounted on one side of the mounting frame, a connecting pipe being connected and mounted on the front and rear side edges of the mounting frame, and a connecting cover being connected and mounted on one end of the connecting pipe, the connecting cover being mounted in conjunction with the connecting interface, and one end of the connecting interface being mounted in conjunction with the front and rear side edges of the auxiliary mounting frame, a magnetic splicing block being fixedly connected to the upper end of one side of the auxiliary mounting frame, and the magnetic splicing block being plugged into and mounted in a magnetic splicing slot, the magnetic splicing slot being opened at the upper ends of both sides of the mounting frame, a mounting plug being fixedly connected to the lower end of one side of the auxiliary mounting frame, and the mounting plug being plugged into and mounted in a mounting slot, the mounting slot being opened At the lower ends of both sides of the mounting frame, and at the lower ends of the front and rear side edges of the mounting frame, locking knobs are inserted and installed, a roller is embedded and installed on one side of the lower end of the auxiliary mounting frame, and a ball is embedded and installed on the other side of the lower end of the auxiliary mounting frame, the lower ends of the inner walls of the mounting frame and the auxiliary mounting frame are connected and installed with an upper sprinkler head, and the lower ends of the front and rear sides of the inner walls of the mounting frame and the auxiliary mounting frame are fixedly connected with a side mounting plate, one side of the side mounting plate is connected and installed with a side sprinkler head, the center position of the upper end of the mounting frame is connected and installed with a water supply conduit, and a water pump is installed on the water supply conduit, the upper ends of the front and rear side edges of the mounting frame are electrically connected with an ammonia detector, and a collecting tank is provided at the lower ends of the inner walls of the mounting frame and the auxiliary mounting frame, the rear side of the collecting tank is connected and installed with a sewage pipe, and the sewage pipe is connected and installed with a regulating valve.

[0007] Preferably, the mounting frame and the hydrolyzer are installed in a wrapped support manner, and the mounting frame is a rectangular parallelepiped structure.

[0008] Preferably, the auxiliary mounting frame is connected to the mounting frame in a push-pull manner through rollers and balls, and the auxiliary mounting frame is installed with the mounting frame in a positioning, plug-in manner through a magnetic splicing block in a magnetic splicing groove and an installation plug-in block in an installation slot, and the installation plug-in block is locked and fixedly connected to the installation slot through a locking knob.

[0009] Preferably, the side spray head, side mounting plate and upper spray head are distributed in a wrapped position with the hydrolyzer, and the side spray head and upper spray head are a matrix through-hole structure. The mounting frame is connected and installed by rotation splicing with the auxiliary mounting frame through a connecting cover and a connecting interface.

[0010] Preferably, the lower end of the inner wall of the collecting tank is an inclined structure, and the collecting tank is connected to the sewage pipe in an open and closed manner through a regulating valve.

[0011] Preferably, the ammonia detector is symmetrically distributed on the upper end of the mounting frame, and the ammonia detector is electrically connected to the water pump, and the water supply conduit is suction-connected to the side sprinkler head and the upper sprinkler head through the water pump.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the automatic spraying device of the hydrolyzer of the denitrification system of the thermal power plant can wrap and support the hydrolyzer through the installation frame, which can provide effective protection, and the auxiliary installation frame and the installation frame can be quickly combined and extended for use through magnetic splicing blocks, magnetic splicing grooves, installation plugs, installation slots, and locking knobs, and can be connected and installed through connecting pipes, connecting covers, and connecting interfaces, with better adaptability, and the ammonia detector can detect ammonia leaks, and the water pump can be started to wrap and spray the hydrolyzer through the side spray heads and upper spray heads to quickly absorb ammonia in the air, making it safe to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of an automatic spraying device for a hydrolyzer in a denitration system of a thermal power plant according to the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of an automatic spraying device for a hydrolyzer in a denitrification system of a thermal power plant according to the present utility model;

[0015] Figure 3 This is a side view of the internal structure of an automatic spraying device for a hydrolyzer in a denitration system of a thermal power plant according to the present invention;

[0016] Figure 4 This utility model is an automatic spraying device for the hydrolyzer of the denitrification system of a thermal power plant Figure 2 Enlarged view of point A in the middle;

[0017] Figure 5 This utility model is an automatic spraying device for the hydrolyzer of the denitrification system of a thermal power plant Figure 2 Enlarged view of point B in the middle;

[0018] Figure 6 This utility model is an automatic spraying device for the hydrolyzer of the denitrification system of a thermal power plant Figure 2 Enlarged view of point C in the middle;

[0019] Figure 7 This utility model is an automatic spraying device for the hydrolyzer of the denitrification system of a thermal power plant Figure 3 Middle D

[0020] In the figure: 1. Hydrolyzer, 2. Mounting frame, 3. Auxiliary mounting frame, 4. Side spray head, 5. Side mounting plate, 6. Collection tank, 7. Ammonia detector, 8. Water supply conduit, 9. Water pump, 10. Upper spray head, 11. Magnetic splicing block, 12. Magnetic splicing slot, 13. Connecting pipe, 14. Connecting cover, 15. Connecting interface, 16. Mounting plug, 17. Mounting slot, 18. Locking knob, 19. Roller, 20. Ball, 21. Regulating valve, 22. Sewage pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-7 The utility model provides a technical solution: an automatic spraying device for a hydrolyzer of a denitrification system of a thermal power plant, comprising a hydrolyzer 1, a mounting frame 2, an auxiliary mounting frame 3, a side spray head 4, a side mounting plate 5, a collecting tank 6, an ammonia detector 7, a water supply conduit 8, a water pump 9, an upper spray head 10, a magnetic splicing block 11, a magnetic splicing tank 12, a connecting pipe 13, a connecting cover 14, a connecting interface 15, a mounting plug 16, a mounting slot 17, a locking knob 18, a roller 19, a ball bearing 20, a regulating valve 21 and a sewage pipe 22. The outer wall of the hydrolyzer 1 is installed with a mounting frame 2, and an auxiliary mounting frame 3 is installed on one side of the mounting frame 2. The mounting frame 2 and the hydrolyzer 1 are wrapped and supported, and the mounting frame 2 is a rectangular parallelepiped structure, so that the mounting frame 2 can wrap and install the hydrolyzer 1, can be stably placed, has good protection, and is safe to use.

[0023] The auxiliary mounting frame 3 is connected to the mounting frame 2 in a push-pull manner through rollers 19 and balls 20, and the auxiliary mounting frame 3 is positioned and plugged into the mounting frame 2 through the magnetic splicing block 11 in the magnetic splicing groove 12 and the mounting plug-in block 16 in the mounting slot 17. The mounting plug-in block 16 is locked and fixedly connected to the mounting slot 17 through the locking knob 18, so that the auxiliary mounting frame 3 is easy to move and disassemble, easy to adapt and adjust, and easy to use.

[0024] The front and rear side edges of the mounting frame 2 are connected and installed with a connecting pipe 13, and one end of the connecting pipe 13 is connected and installed with a connecting cover 14, the connecting cover 14 is installed in conjunction with the connecting interface 15, and one end of the connecting interface 15 is connected and installed with the front and rear side edges of the auxiliary mounting frame 3, the upper end of one side of the auxiliary mounting frame 3 is fixedly connected with a magnetic splicing block 11, and the magnetic splicing block 11 is plugged and installed with the magnetic splicing slot 12, the magnetic splicing slot 12 is opened at the upper ends of both sides of the mounting frame 2, the lower end of one side of the auxiliary mounting frame 3 is fixedly connected with a mounting plug-in block 16, and the mounting plug-in block 16 is plugged and installed with the mounting slot 17, the mounting slot 17 is opened at the lower ends of both sides of the mounting frame 2, and the lower ends of the front and rear side edges of the mounting frame 2 are plugged and installed with a locking knob 18, the lower end of the auxiliary mounting frame 3 A roller 19 is embedded on one side, and a ball 20 is embedded on the other side of the lower end of the auxiliary mounting frame 3. The lower ends of the inner walls of the mounting frame 2 and the auxiliary mounting frame 3 are connected and installed with an upper spray head 10, and the lower ends of the front and rear sides of the inner walls of the mounting frame 2 and the auxiliary mounting frame 3 are fixedly connected with a side mounting plate 5. A side mounting plate 5 is connected and installed on one side of the side mounting plate 5. The side spray head 4, the side mounting plate 5 and the upper spray head 10 are distributed in a wrapped position with the hydrolyzer 1, and the side spray head 4 and the upper spray head 10 are a matrix through-hole structure. The mounting frame 2 is connected and installed with the auxiliary mounting frame 3 by a connecting cover 14 and a connecting interface 15 in a rotationally spliced ​​manner. In this way, the side spray head 4, the side mounting plate 5 and the upper spray head 10 can conveniently wrap and spray the hydrolyzer 1, and the spraying effect is good.

[0025] A water supply conduit 8 is installed at the center position of the upper end of the installation frame 2, and a water pump 9 is installed on the water supply conduit 8. The upper ends of the front and rear side edges of the installation frame 2 are electrically connected to an ammonia detector 7, and a collection tank 6 is provided at the lower end of the inner wall of the installation frame 2 and the auxiliary installation frame 3. The lower end of the inner wall of the collection tank 6 is an inclined structure, and the collection tank 6 is connected to the sewage pipe 22 in an open and closed manner through the regulating valve 21, so that the collection tank 6 can easily collect sewage and discharge it.

[0026] The ammonia detector 7 is symmetrically distributed at the upper end of the mounting frame 2, and the ammonia detector 7 is electrically connected to the water pump 9. The water supply conduit 8 is suction-connected to the side spray head 4 and the upper spray head 10 through the water pump 9, so that the ammonia detector 7 can detect ammonia and can quickly spray through the water pump 9, which is safer to use. A sewage pipe 22 is installed on the rear side of the collection tank 6, and a regulating valve 21 is installed on the sewage pipe 22.

[0027] Working principle: When using the automatic spraying device of the denitrification system hydrolyzer of the thermal power plant, firstly, the mounting frame 2 of the device is assembled with the hydrolyzer 1, and then the water supply conduit 8 is connected to the water tank, and then the device is connected to the power supply, and then the hydrolyzer 1 is started and the processing operation is carried out. When ammonia leakage occurs, the ammonia detector 7 can be used to detect the ammonia in the air. When the leakage is detected, the water pump 9 can be started to guide water into the side spray head 4 and the upper spray head 10 for wrapping spraying to absorb the safe ammonia in the air. When the lengths of the connected pipes are different, the auxiliary installation frame 3 can be extended and spliced ​​through the magnetic splicing block 11, the magnetic splicing slot 12, the installation plug 16, the installation slot 17, and the locking knob 18, and connected and installed with the installation frame 2 through the connecting pipe 13, the connecting cover 14, and the connecting interface 15, and the wastewater is collected through the collection tank 6. When it needs to be discharged, the regulating valve 21 can be opened and then discharged through the sewage pipe 22. This is the use process of the automatic spraying device of the hydrolyzer of the denitrification system of the thermal power plant.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic spraying device for a hydrolyzer of a denitration system in a thermal power plant, comprising a hydrolyzer (1), a mounting frame (2) being mounted on an outer wall of the hydrolyzer (1), and an auxiliary mounting frame (3) being mounted on one side of the mounting frame (2), characterized in that: The front and rear side edges of the installation frame (2) are connected and installed with a connecting pipe (13), and one end of the connecting pipe (13) is connected and installed with a connecting cover (14), the connecting cover (14) is covered and installed with the connecting interface (15), and one end of the connecting interface (15) is connected and installed with the front and rear side edges of the auxiliary installation frame (3), the upper end of one side of the auxiliary installation frame (3) is fixedly connected with a magnetic splicing block (11), and the magnetic splicing block (11) is plugged and installed with the magnetic splicing slot (12), the magnetic splicing slot (12) is opened at the upper ends of both sides of the installation frame (2), the lower end of one side of the auxiliary installation frame (3) is fixedly connected with a mounting plug-in block (16), and the mounting plug-in block (16) is plugged and installed with the mounting slot (17), the mounting slot (17) is opened at the lower ends of both sides of the installation frame (2), and the lower ends of the front and rear side edges of the installation frame (2) are plugged and installed with a locking knob (18), the auxiliary installation frame (3) A roller (19) is embedded and installed on one side of the lower end, and a ball (20) is embedded and installed on the other side of the lower end of the auxiliary mounting frame (3); the lower ends of the inner walls of the mounting frame (2) and the auxiliary mounting frame (3) are connected and installed with an upper spray head (10); and the lower ends of the front and rear sides of the inner walls of the mounting frame (2) and the auxiliary mounting frame (3) are fixedly connected with a side mounting plate (5); one side of the side mounting plate (5) is connected and installed with a side spray head (4); the center position of the upper end of the mounting frame (2) is connected and installed with a water supply pipe (8), and a water pump (9) is installed on the water supply pipe (8); the upper ends of the front and rear side edges of the mounting frame (2) are electrically connected with an ammonia detector (7), and the lower ends of the inner walls of the mounting frame (2) and the auxiliary mounting frame (3) are provided with a collecting tank (6); the rear side of the collecting tank (6) is connected and installed with a sewage pipe (22), and the sewage pipe (22) is connected and installed with a regulating valve (21).

2. The automatic spraying device for a hydrolyzer of a denitration system in a thermal power plant according to claim 1, characterized in that: The installation frame (2) and the hydrolyzer (1) are installed in a wrapped support manner, and the installation frame (2) is a rectangular parallelepiped structure.

3. The automatic spraying device for a hydrolyzer of a denitration system in a thermal power plant according to claim 2, characterized in that: The auxiliary mounting frame (3) is connected to the mounting frame (2) in a push-pull movable manner via the roller (19) and the ball (20), and the auxiliary mounting frame (3) is positioned, plugged, and spliced ​​with the mounting frame (2) via the magnetic splicing block (11) in the magnetic splicing groove (12) and the mounting plug block (16) in the mounting slot (17), and the mounting plug block (16) is locked and fixedly connected to the mounting slot (17) via the locking knob (18).

4. The automatic spraying device for a hydrolyzer in a denitration system of a thermal power plant according to claim 3, characterized in that: The side spray head (4), the side mounting plate (5) and the upper spray head (10) are arranged in a wrapped position with the hydrolyzer (1), and the side spray head (4) and the upper spray head (10) are a matrix through-hole structure. The mounting frame (2) is connected and mounted in a rotational manner with the auxiliary mounting frame (3) through a connecting cover (14) and a connecting interface (15).

5. The automatic spraying device for a hydrolyzer of a denitration system in a thermal power plant according to claim 4, characterized in that: The lower end of the inner wall of the collecting tank (6) is an inclined structure, and the collecting tank (6) is connected to the sewage pipe (22) in an open-closed manner via a regulating valve (21).

6. The automatic spraying device for a hydrolyzer in a denitration system of a thermal power plant according to claim 5, characterized in that: The ammonia detector (7) is symmetrically distributed on the upper end of the mounting frame (2), and the ammonia detector (7) is electrically connected to the water pump (9). The water supply conduit (8) is connected to the side spray head (4) and the upper spray head (10) through the water pump (9) in a suction communication manner.

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