Ammonia gas filling device based on coal-fired unit denitration system

Abstract

The utility model discloses an ammonia gas filling device based on a coal-fired unit denitration system, which comprises a base, a base plate arranged on one side of the top end of the base, a storage tank arranged at the center of the top end of the base plate, a temperature meter arranged on one side of the top end of the storage tank, and a pressure meter arranged on the top end of the storage tank on one side of the temperature meter. An exhaust pipe is arranged at the top end of the storage tank on one side of the pressure meter, a part placing frame is arranged at the top end of the base on one side of the base plate, a filling device is inserted into the part placing frame, one end of the filling device extends to the outside of the part placing frame and is provided with a filling hose, and a push handle is arranged at the top end of the base on one side, away from the base plate, of the part placing frame; and a piece placing seat is arranged on the outer wall of one side of the upper end of the push handle. According to the utility model, not only is the safety of the filling device in use improved, but also the filling rate of ammonia gas can be adjusted as required according to the denitration requirement of a coal-fired unit, so that the convenience of the filling device in use is improved, and the purpose of easily transferring the filling device is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of denitration of coal-fired units, and particularly relates to an ammonia injection device based on a denitration system of a coal-fired unit. Background Technique

[0002] During the operation of coal-fired units, nitrogen oxides in flue gas are one of the main air pollutants. In order to reduce the emission of nitrogen oxides, coal-fired units usually adopt selective catalytic reduction (SCR) technology for denitration treatment. In the SCR denitration system, ammonia is used as a reducing agent, and it reacts chemically with nitrogen oxides in flue gas under the action of a catalyst to generate nitrogen and water, thereby achieving the removal of nitrogen oxides. In order to inject ammonia into coal-fired units, a corresponding injection device is required.

[0003] An injection device with the reference publication number CN217405656U includes a walking frame, a medium storage tank, a conduit and a switching device. The walking frame is used to enable the injection device to move. The medium storage tank is used to store the medium, and the medium storage tank is arranged on the top of the walking frame. The conduit is connected to the bottom of the medium storage tank, and the conduit is used to export the medium from the medium storage tank. The switching device is arranged on the conduit, and the switching device is used to cut off or conduct the conduit. By setting the walking frame, the injection device can move, so as to move the injection device to the position where the battery is located. In addition, the walking frame can support the medium storage tank, so that the height of the medium storage tank is higher than that of the battery, so that the medium can flow naturally to the battery when the switching device conducts the conduit without other power, with a relatively high injection efficiency. Moreover, this injection device does not need to be equipped with an electric pump, reducing the risk of electric leakage and electric shock, having better safety and lower cost. According to the above, although this injection device can be well applied, it is usually not convenient to monitor the temperature and pressure of ammonia in the storage container, and it is difficult to take timely measures when the temperature and pressure are abnormal, with serious potential safety hazards and still needs to be improved. Summary of the Invention

[0004] The purpose of the utility model is to provide an ammonia injection device based on a denitration system of a coal-fired unit, so as to solve the problem proposed in the above background technique that although the injection device can be well applied, it is usually not convenient to monitor the temperature and pressure of ammonia in the storage container, and it is difficult to take timely measures when the temperature and pressure are abnormal, with serious potential safety hazards.

[0005] To achieve the above object, the present utility model provides the following technical solution: An ammonia injection device based on a denitration system of a coal-fired unit, including a base, on one side of the top of the base is provided a substrate, at the center position of the top of the substrate is provided a storage tank, on one side of the top of the storage tank is provided a temperature gauge, on the top of the storage tank on one side of the temperature gauge is provided a pressure gauge, on the top of the storage tank on one side of the pressure gauge is provided an exhaust pipe, on the top of the base on one side of the substrate is provided a component placement frame, inside the component placement frame is inserted and installed a filler, one end of the filler extends to the outside of the component placement frame and is provided with a filling hose, one end of the filling hose away from the filler is communicated with one end of the exhaust pipe, on the top of the base on the side of the component placement frame away from the substrate is provided a push handle, on the outer wall on one side of the upper end of the push handle is provided a component placement seat, at the bottom of the component placement seat is installed a control box, the input end of the single-chip microcomputer inside the control box is electrically connected to the output ends of the temperature gauge and the pressure gauge respectively, on both sides of the top of the substrate are provided columns, at the top of the two columns is provided a top plate, and at the top of the top plate is provided a power supply box.

[0006] Preferably, on one side of the bottom end of the base are installed two rear rollers, and on the other side of the bottom end of the base are installed two front rollers. Through the setting of the front rollers and the rear rollers, it is easy to transport and transfer the injection device.

[0007] Preferably, a motor is installed at the bottom end of the base between the front rollers through a bracket, and the input end of the motor is electrically connected to the output end of the single-chip microcomputer inside the control box. Through the setting of the motor, it is convenient to drive the gearbox to operate.

[0008] Preferably, on the outer wall on one side of the exhaust pipe is installed a telescopic driving member through a bracket, the input end of the telescopic driving member is electrically connected to the output end of the single-chip microcomputer inside the control box, one end of the telescopic driving member is rotatably connected to a driving arm, and on the outer wall of the exhaust pipe on one side of the driving arm is provided a shaft seat. Through the setting of the telescopic driving member, it is convenient to drive the rotating shaft to rotate through the driving arm.

[0009] Preferably, a rotating shaft is rotatably installed inside the exhaust pipe, one end of the rotating shaft penetrates through the shaft seat and is connected to one end of the driving arm, and on the outer wall of the rotating shaft inside the exhaust pipe is provided a tube core. Through the setting of the tube core, it is convenient to adjust and control the opening and closing size of the exhaust pipe.

[0010] Preferably, a gearbox is provided at the bottom of the base at one end of the motor, and on both outer walls at the lower end of the gearbox are connected to the inner walls of the front rollers through guide shafts. Through the setting of the gearbox, it is convenient to drive the front rollers to rotate.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The ammonia injection device based on the denitration system of a coal-fired unit not only improves the safety during the use of the injection device, but also can adjust the ammonia injection rate according to the denitration requirements of the coal-fired unit as needed, so as to enhance the convenience during the use of the injection device, and moreover achieves the purpose of being easy to transport the injection device;

[0012] Through the settings of the temperature gauge and the pressure gauge, the temperature and pressure of the ammonia inside the storage tank are monitored in real time, and the relevant monitoring data will be fed back to the control box and displayed for personnel to view. Thus, it is easy to take measures in a timely manner when the temperature and pressure inside the storage tank are abnormal, so as to reduce the occurrence of safety accidents, thereby improving the safety during the use of the injection device;

[0013] The telescopic driving member drives the rotating shaft to rotate through the driving arm, so that the rotating shaft drives the tube core to rotate inside the exhaust pipe, and then the opening and closing size of the exhaust pipe can be adjusted to adjust the ammonia injection rate according to the denitration requirements of the coal-fired unit as needed, thereby improving the convenience during the use of the injection device;

[0014] The motor drives the gearbox to operate, so that the gearbox drives two front rollers to rotate through the guide shaft, so that the front rollers cooperate with the rear rollers to electrically transport the injection device, thereby achieving the purpose of being easy to transport the injection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a front structural schematic diagram of the present utility model;

[0017] Figure 3 is an enlarged structural schematic diagram of the exhaust pipe of the present utility model;

[0018] Figure 4 is a bottom-up structural schematic diagram of the base of the present utility model.

[0019] In the figure: 1. Base; 2. Rear roller; 3. Front roller; 4. Push handle; 5. Component placement seat; 6. Control box; 7. Substrate; 8. Column; 9. Top plate; 10. Power supply box; 11. Temperature gauge; 12. Pressure gauge; 13. Exhaust pipe; 14. Filling hose; 15. Component placement frame; 16. Filler; 17. Storage tank; 18. Telescopic driving member; 19. Driving arm; 20. Axle seat; 21. Rotating shaft; 22. Tube core; 23. Motor; 24. Gearbox. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-4 , an embodiment provided by the present invention: an ammonia injection device based on a denitration system of a coal-fired unit, including a base 1, two rear rollers 2 are installed on one side of the bottom end of the base 1, and two front rollers 3 are installed on the other side of the bottom end of the base 1;

[0022] During use, through the arrangement of the front rollers 3 and the rear rollers 2, it is easy to transport and transfer the injection device;

[0023] A motor 23 is installed at the bottom end of the base 1 between the front rollers 3 through a bracket, and the input end of the motor 23 is electrically connected to the output end of the single-chip microcomputer inside the control box 6;

[0024] During use, through the arrangement of the motor 23, it is convenient to drive the gearbox 24 to operate;

[0025] A gearbox 24 is provided at the bottom of the base 1 at one end of the motor 23, and both outer walls at the lower end of the gearbox 24 are connected to the inner wall of the front roller 3 through guide shafts;

[0026] During use, through the arrangement of the gearbox 24, it is convenient to drive the front roller 3 to rotate;

[0027] On one side of the top end of the base 1, there is a substrate 7. At the center position of the top end of the substrate 7, there is a storage tank 17. On one side of the top end of the storage tank 17, there is a temperature gauge 11. On one side of the temperature gauge 11, at the top end of the storage tank 17, there is a pressure gauge 12. On one side of the pressure gauge 12, at the top end of the storage tank 17, there is an exhaust pipe 13. On the outer wall of one side of the exhaust pipe 13, a telescopic driving member 18 is installed through a bracket. The input end of the telescopic driving member 18 is electrically connected to the output end of the single-chip microcomputer inside the control box 6. One end of the telescopic driving member 18 is rotatably connected to a driving arm 19, and a shaft seat 20 is provided on the outer wall of the exhaust pipe 13 on one side of the driving arm 19;

[0028] During use, through the arrangement of the telescopic driving member 18, it is convenient to drive the rotating shaft 21 to rotate through the driving arm 19;

[0029] A rotating shaft 21 is rotatably installed inside the exhaust pipe 13. One end of the rotating shaft 21 passes through the shaft seat 20 and is connected to one end of the driving arm 19. A tube core 22 is provided on the outer wall of the rotating shaft 21 inside the exhaust pipe 13;

[0030] During use, through the arrangement of the tube core 22, it is convenient to adjust and control the opening and closing size of the exhaust pipe 13;

[0031] At the top of the base 1 on one side of the substrate 7, there is a component placement frame 15. An injector 16 is inserted and installed inside the component placement frame 15. One end of the injector 16 extends to the outside of the component placement frame 15 and is provided with a filling hose 14. One end of the filling hose 14 away from the injector 16 is connected and communicated with one end of the exhaust pipe 13. At the top of the base 1 on the side of the component placement frame 15 away from the substrate 7, there is a push handle 4. On one side outer wall of the upper end of the push handle 4, there is a component placement seat 5. A control box 6 is installed at the bottom of the component placement seat 5. The input end of the single-chip microcomputer inside the control box 6 is electrically connected to the output ends of the temperature gauge 11 and the pressure gauge 12 respectively. On both sides of the top of the substrate 7, there are columns 8. At the top of the two columns 8, there is a top plate 9. At the top of the top plate 9, there is a power supply box 10.

[0032] When the embodiment of the present application is in use, first, the motor 23 is driven to operate the gearbox 24, so that the gearbox 24 drives the two front rollers 3 to rotate through the guide shaft, so that the front rollers 3 cooperate with the rear rollers 2 to electrically transport the filling device, so as to easily transfer the filling device to the side of the coal-fired unit for subsequent filling use. Then, by removing the injector 16, one end of the injector 16 is inserted and installed on the filling port of the coal-fired unit. When the injector 16 is started and the exhaust pipe 13 is opened and closed, the ammonia stored inside the storage tank 17 will pass through the filling hose 14 and be filled into the coal-fired unit by the injector 16, so as to easily carry out denitration operation on the flue gas in the coal-fired unit. Then, the telescopic driving member 18 drives the rotating shaft 21 to rotate through the driving arm 19, so that the rotating shaft 21 drives the tube core 22 to rotate inside the exhaust pipe 13, and the opening and closing size of the exhaust pipe 13 can be adjusted, so as to adjust the filling rate of ammonia as required. Finally, through the setting of the temperature gauge 11, it is used to monitor the temperature of ammonia in real time. When the temperature is abnormal, measures can be taken in time to prevent ammonia leakage and safety accidents. Through the setting of the pressure gauge 12, it is used to monitor the pressure of ammonia in real time. When the pressure is abnormal, measures can be taken in time to ensure the safety of the ammonia storage and transportation process, thus completing the use of the ammonia filling device.

Claims

1. An ammonia filling device based on a coal-fired unit denitrification system, characterized in that: The invention comprises a base (1), a substrate (7) is provided on one side of the top of the base (1), a storage tank (17) is provided at the center of the top of the substrate (7), a temperature gauge (11) is provided on one side of the top of the storage tank (17), a pressure gauge (12) is provided on the top of the storage tank (17) on one side of the temperature gauge (11), an exhaust pipe (13) is provided on the top of the storage tank (17) on one side of the pressure gauge (12), a mounting frame (15) is provided on the top of the base (1) on one side of the substrate (7), a filler (16) is installed in the interior of the mounting frame (15), one end of the filler (16) extends to the outside of the mounting frame (15) and is provided with a filling hose (14), one end of the filling hose (14) away from the filler (16) is connected to one end of the exhaust pipe (13), a push handle (4) is provided at the top of the base (1) of the mounting frame (15) away from the substrate (7), a mounting seat (5) is provided on one side of the outer wall of the upper end of the push handle (4), a control box (6) is installed at the bottom of the mounting seat (5), the input end of the single-chip microcomputer inside the control box (6) is electrically connected to the output end of the temperature meter (11) and the pressure meter (12), columns (8) are provided on both sides of the top of the substrate (7), top plates (9) are provided at the top of the two columns (8), and a power supply box (10) is provided at the top of the top plate (9).

2. The ammonia filling device based on the denitration system of a coal-fired unit according to claim 1 is characterized in that: Two rear rollers (2) are installed on one side of the bottom end of the base (1), and two front rollers (3) are installed on the other side of the bottom end of the base (1).

3. The ammonia filling device based on the denitration system of a coal-fired unit according to claim 2 is characterized in that: A motor (23) is mounted on the bottom end of the base (1) between the front rollers (3) via a bracket, and an input end of the motor (23) is electrically connected to an output end of a single chip microcomputer inside the control box (6).

4. The ammonia filling device based on the denitration system of a coal-fired unit according to claim 1 is characterized in that: A telescopic driving member (18) is mounted on the outer wall of one side of the exhaust pipe (13) via a bracket; an input end of the telescopic driving member (18) is electrically connected to an output end of a single chip microcomputer inside the control box (6); one end of the telescopic driving member (18) is rotatably connected to a driving arm (19); and an axle seat (20) is provided on the outer wall of the exhaust pipe (13) on one side of the driving arm (19).

5. The ammonia filling device based on the denitration system of a coal-fired unit according to claim 4 is characterized in that: A rotating shaft (21) is rotatably mounted inside the exhaust pipe (13); one end of the rotating shaft (21) passes through the shaft seat (20) and is connected to one end of the driving arm (19); and a tube core (22) is provided on the outer wall of the rotating shaft (21) inside the exhaust pipe (13).

6. The ammonia filling device based on the denitration system of a coal-fired unit according to claim 3 is characterized in that: A gear box (24) is provided at the bottom of the base (1) at one end of the motor (23), and both side outer walls of the lower end of the gear box (24) are connected to the inner wall of the front roller (3) via guide shafts.

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