Steam temperature deviation adjusting device for supercritical boiler

Abstract

The invention discloses a steam temperature deviation adjusting device for a supercritical boiler, belongs to the field of boiler adjustment, and aims at solving the problem that an existing steam temperature deviation adjusting device is low in adjusting timeliness. A motor is started through an animation display module, an airflow direction identification module, a speed marking module, an abnormity warning module, a temperature monitoring unit, a hot-wire anemometer, a first-stage guide plate, an electric push rod and a partition plate, and the output end of the motor rotates to drive an impeller in a fan set to rotate, so that airflow is generated; air flow generated by the fan set can enter the secondary air pipe along the air inlet, the temperature, the speed and the direction of the air flow in the secondary air pipe, the communicating pipe and the primary air pipe are detected through the temperature monitoring unit and the hot-wire anemometer, and the flowing direction of the air flow is displayed on a display screen on the control panel through the animation display module. And arrow marking is carried out by utilizing the airflow direction identification module, so that subsequent adjustment by workers is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of boiler regulation, and in particular to a supercritical boiler steam temperature deviation regulating device. Background Art

[0002] As an efficient and environmentally friendly energy conversion equipment, supercritical boilers have been widely used in the fields of electricity, chemical industry, etc. However, in actual operation, the steam temperature deviation problem of supercritical boilers has always been one of the key factors restricting their performance improvement and operation stability, which makes the supercritical boiler steam temperature deviation adjustment device indispensable.

[0003] At present, the boiler steam temperature deviation is mainly adjusted by changing the coal mill wind speed deviation, as well as adjusting the secondary air and burnout air volume. In the process of adjusting the air flow direction, the airflow will hit the inner wall of the air duct, thereby reducing the airflow velocity. At present, when adjusting the airflow direction, the specific direction of the airflow will not be displayed. When the airflow direction deviates, the kinetic energy loss of the airflow will increase, and the staff do not know how to adjust it at this time, which will increase the airflow loss during the entire airflow process, thereby reducing the performance of the boiler steam temperature deviation adjustment and the adjustment timeliness.

[0004] Therefore, a supercritical boiler steam temperature deviation regulating device is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a supercritical boiler steam temperature deviation regulating device, which solves the problem of low regulation timeliness of the current steam temperature deviation regulating device in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a supercritical boiler steam temperature deviation regulating device, comprising a main box, a fan component is arranged inside the main box, an air flow component is arranged at the upper end of the main box, a control panel is arranged on one side of the main box, and an air outlet of the fan component is connected to the air flow component;

[0007] The air flow assembly includes a secondary air duct arranged at the upper end of the main box, a connecting pipe arranged at one side of the secondary air duct, and a primary air duct arranged at one end of the connecting pipe, the secondary air duct is connected to the boiler burner, and the primary air duct is connected to the coal mill;

[0008] A main processing module is provided inside the control panel, and the main processing module signal is connected to an animation display module, and the animation display module signal is connected to an airflow direction identification module, and the airflow direction identification module signal is connected to a speed marking module, and the speed marking module signal is connected to an abnormal warning module. Temperature monitoring units and hot-wire anemometers are provided inside the secondary air duct, connecting pipe and primary air duct, and the temperature monitoring unit and the hot-wire anemometer are both connected to the main processing module signal. The airflow temperature, airflow speed and airflow direction inside the secondary air duct, connecting pipe and primary air duct are detected by the temperature monitoring unit and the hot-wire anemometer, and the airflow direction is displayed on the display screen on the control panel through the animation display module, and the airflow direction identification module is used to mark an arrow, and the speed marking module is used to mark the speed of the airflow inside the secondary air duct, connecting pipe and primary air duct. When an abnormal phenomenon occurs, the abnormal warning module issues an alarm.

[0009] Furthermore, the fan component includes a fan unit arranged inside the main box, a motor arranged on one side of the fan unit, and a base arranged at the lower end of the motor. A support frame is arranged at the lower end of the fan unit, and a base is arranged at the lower ends of the support frame and the base, and the base is connected to the inner wall of the main box.

[0010] Furthermore, a cylinder is embedded inside the secondary air duct, a driving motor is provided at the upper end of the cylinder, an L-shaped rod is provided on the outer surface of the driving motor, one end of the L-shaped rod is connected to the secondary air duct, a primary guide plate is provided inside the secondary air duct, a rubber pad is provided at the output end of the driving motor, and one side of the rubber pad is connected to the upper surface of the primary guide plate.

[0011] Furthermore, a built-in tube is provided on the upper surface of the secondary air duct, an electric push rod is provided inside the built-in tube, one end of the electric push rod is magnetically connected to the primary guide plate, two groups of built-in tubes are provided, the two groups of built-in tubes are distributed at ninety degrees, and one group of the built-in tubes is close to the connecting pipe.

[0012] Furthermore, a docking port is provided on one side of the secondary air duct, the secondary air duct is connected with the connecting pipe through the docking port, a baffle is provided inside the secondary air duct, a control valve is provided on the outer surface of the baffle, and multiple groups of control valves are provided.

[0013] Furthermore, a partition plate is hinged inside the connecting pipe, a hydraulic push rod is provided on one side of the partition plate, movable parts are provided at both ends of the hydraulic push rod, and the two ends of the hydraulic push rod are movably connected to the partition plate and the inner wall of the connecting pipe through the movable parts.

[0014] Furthermore, the primary air duct includes a main pipe arranged at one end of the connecting pipe, a sub-pipe arranged at one end of the main pipe, and a pressurized air pump arranged inside the primary air duct, air connecting pipes are arranged at both ends of the pressurized air pump, an air guiding component is arranged inside the main pipe, the pipe openings of the two groups of air connecting pipes are respectively opposite to the air guiding component and the sub-pipe, a water storage bag is arranged on the inner side wall of the main pipe, an external water pipe is arranged on the outer surface of the main pipe, a main slot is opened on one side of the main pipe, the main pipe is connected with the connecting pipe through the main slot, a slide groove is opened at the bottom of the main pipe, the air guiding component is opposite to the water storage bag, and the external water pipe is connected with the water storage bag.

[0015] Furthermore, the air guide component includes a special-shaped block arranged inside the main pipe, a slider is arranged at the lower end of the special-shaped block, a front plate is arranged at one end of the special-shaped block, a roller is arranged at the lower end of the front plate, the special-shaped block is slidably connected to the slide groove through the slider, the roller is located inside the slide groove, a curved surface one is opened on one side of the special-shaped block, a curved surface two is opened on the other side of the special-shaped block, a groove is opened on the curved surface two, a bag roller is rotatably arranged in the groove, a drip hole is opened in the groove, and the drip hole is opposite to the slide groove.

[0016] Furthermore, a water absorption plate is provided inside the special-shaped block, a plug-in tube is provided at one end of the water absorption plate, one end of the plug-in tube passes through curved surface one, one side of the water absorption plate is in contact with the cloth bag roller, one side of the water storage bag is in a shape that fits with curved surface one, and a water outlet pipe is provided on one side of the water storage bag, a pressure valve is provided in the water outlet pipe, and the water outlet pipe corresponds to the plug-in tube.

[0017] Furthermore, an adjustment component is provided inside the secondary pipe, and the adjustment component includes an enclosure plate provided inside the secondary pipe, a through hole is opened on the outer surface of the enclosure plate, a branch pipe is inserted in the through hole, a porous plate is provided in the branch pipe, and a positioning rod is also provided inside the secondary pipe, one end of the positioning rod is connected to the enclosure plate, an electric telescopic rod is provided on the outer surface of the positioning rod, a mounting plate is provided at one end of the electric telescopic rod, a baffle plate is provided on one side of the mounting plate, the baffle plate is located inside the branch pipe, and one side of the baffle plate is in contact with the surface of the porous plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention proposes a supercritical boiler steam temperature deviation regulating device. In the prior art, the regulating timeliness of the steam temperature deviation regulating device is low. The present invention starts the motor through an animation display module, an airflow direction identification module, a speed marking module, an abnormal warning module, a temperature monitoring unit, a hot wire anemometer, a primary guide plate, an electric push rod and a partition plate. The rotation of the output end drives the impeller in the fan unit to rotate, thereby generating airflow. The airflow generated by the fan unit enters the secondary air duct along the air inlet. The airflow temperature, airflow speed and airflow direction inside the secondary air duct, the connecting pipe and the primary air duct are detected by the temperature monitoring unit and the hot wire anemometer. The airflow is displayed on the display screen of the control panel through the animation display module. The flow direction is determined by the airflow direction identification module, and the speed marking module is used to mark the speed of the airflow inside the secondary air duct, connecting pipe and primary air duct. When an abnormal phenomenon occurs, the abnormal warning module issues an alarm. When the airflow direction inside the secondary air duct, connecting pipe and primary air duct is not optimal, the electric push rod can be used to fine-tune the angle of the primary guide plate, which changes the direction of the airflow blowing to the primary guide plate. At the same time, the hydraulic push rod is used to change the inclination angle of the partition plate, thereby changing the flow angle of the airflow, thereby reducing the kinetic energy loss of the airflow and ensuring that the airflow speed is not affected, thereby achieving effective regulation of the pulverizer wind speed and indirectly balancing the boiler steam temperature deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the supercritical boiler steam temperature deviation regulating device of the present invention;

[0021] Figure 2 This is a schematic diagram of the main box structure of the supercritical boiler steam temperature deviation regulating device of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the fan components of the supercritical boiler steam temperature deviation regulating device of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the air flow component of the supercritical boiler steam temperature deviation regulating device of the present invention;

[0024] Figure 5 It is a schematic diagram of the secondary air duct structure of the supercritical boiler steam temperature deviation regulating device of the present invention;

[0025] Figure 6 It is a schematic diagram of the connecting pipe structure of the supercritical boiler steam temperature deviation regulating device of the present invention;

[0026] Figure 7 The primary air duct structure of the steam temperature deviation regulating device for supercritical boilers of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 8The primary air duct structure of the steam temperature deviation regulating device for supercritical boilers of the present invention is shown in FIG. Figure 2 ;

[0028] Fig. 9 The structure of the air guide component of the steam temperature deviation regulating device for supercritical boilers of the present invention is shown in FIG. Figure 1 ;

[0029] Fig.10 The structure of the air guide component of the steam temperature deviation regulating device for supercritical boilers of the present invention is shown in FIG. Figure 2 ;

[0030] Fig.11 This is a schematic diagram of the structure of the regulating assembly of the supercritical boiler steam temperature deviation regulating device of the present invention;

[0031] Fig.12 It is a schematic diagram of the internal structure of the special-shaped block of the supercritical boiler steam temperature deviation regulating device of the present invention;

[0032] Fig.13 This is a flowchart of the control panel of the supercritical boiler steam temperature deviation regulating device of the present invention.

[0033] In the figure: 1. Main box; 11. Air inlet; 2. Fan components; 21. Fan unit; 22. Motor; 23. Machine base; 24. Support frame; 25. Base; 3. Air flow assembly; 31. Secondary air duct; 311. Cylinder; 312. Driving motor; 313. L-shaped rod; 314. Primary guide plate; 315. Rubber pad; 316. Built-in cylinder; 317. Electric push rod; 318. Docking port; 319. Baffle; 32. Connecting pipe; 321. Partition plate; 322. Hydraulic push rod; 323. Moving parts; 33. Primary air duct; 331. Main pipe; 332. Sub-pipe; 333. Pressurized air pump; 334. Air connection pipe; 335. Air guide component; 3351. Special-shaped block; 33511. Water absorption plate; 33512. Plug-in pipe; 3352. Curved surface 2; 3353. Curved surface 1; 3354. Slider; 3355. Bag roller; 3356. Front plate; 3357. Roller; 3358. Drip hole; 336. Water storage bag; 337. External water pipe; 338. Main notch; 339. Slide; 34. Adjustment component; 341. Branch pipe; 342. Perforated plate; 343. Positioning rod; 344. Electric telescopic rod; 345. Mounting plate; 346. Shielding plate; 347. Enclosure; 4. Control panel. DETAILED DESCRIPTION

[0034] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] In order to solve the technical problem of how to improve the timeliness of the steam temperature deviation control device, such as Figure 1-Figure 6 and Fig.13 As shown, the following preferred technical solutions are provided:

[0037] A supercritical boiler steam temperature deviation regulating device comprises a main box 1, a fan component 2 is arranged inside the main box 1, an air flow component 3 is arranged at the upper end of the main box 1, a control panel 4 is arranged at one side of the main box 1, an air outlet of the fan component 2 is connected with the air flow component 3, the air flow component 3 comprises a secondary air duct 31 arranged at the upper end of the main box 1, a connecting pipe 32 arranged at one side of the secondary air duct 31, and a primary air duct 33 arranged at one end of the connecting pipe 32, the secondary air duct 31 is connected with the boiler burner, and the primary air duct 33 is connected with the coal mill;

[0038] The control panel 4 is provided with a main processing module inside, the main processing module signal is connected to the animation display module, the animation display module signal is connected to the airflow direction identification module, the airflow direction identification module signal is connected to the speed marking module, the speed marking module signal is connected to the abnormal warning module, the secondary air duct 31, the connecting pipe 32 and the primary air duct 33 are provided with a temperature monitoring unit and a hot wire anemometer, the temperature monitoring unit and the hot wire anemometer are connected to the main processing module signal, the temperature monitoring unit and the hot wire anemometer are used to detect the airflow temperature, airflow speed and airflow direction inside the secondary air duct 31, the connecting pipe 32 and the primary air duct 33, and the animation display module is used to detect the airflow temperature, airflow speed and airflow direction inside the secondary air duct 31, the connecting pipe 32 and the primary air duct 33. The display screen on the control panel 4 shows the direction of airflow, and uses the airflow direction identification module to mark arrows, and uses the speed marking module to mark the speed of the airflow inside the secondary air duct 31, the connecting pipe 32 and the primary air duct 33. When an abnormal phenomenon occurs, the abnormal warning module issues an alarm. During operation, the fan component 2 is started, and the wind generated by the fan component 2 will enter the air flow component 3, and enter the pulverized coal pipe of the pulverizer along the primary air duct 33, and also enter the boiler burner along the secondary air duct 31. By adjusting the airflow volume and air velocity, the primary wind speed adjustment, the secondary wind speed adjustment and the burnout air adjustment are achieved.

[0039] The fan component 2 includes a fan unit 21 arranged inside the main box body 1, a motor 22 arranged on one side of the fan unit 21, and a base 23 arranged at the lower end of the motor 22. A support frame 24 is arranged at the lower end of the fan unit 21, and a base 25 is arranged at the lower ends of the support frame 24 and the base 23. The base 25 is connected to the inner wall of the main box body 1. When the motor 22 is started, the rotation of its output end will drive the impeller in the fan unit 21 to rotate, thereby generating airflow. An air inlet 11 is opened on the upper surface of the main box body 1, and the airflow generated by the fan unit 21 will enter the secondary air duct 31 along the air inlet 11.

[0040] A cylinder 311 is embedded in the secondary air duct 31, and a driving motor 312 is provided at the upper end of the cylinder 311. An L-shaped rod 313 is provided on the outer surface of the driving motor 312, and one end of the L-shaped rod 313 is connected to the secondary air duct 31. A primary guide plate 314 is provided in the secondary air duct 31, and a rubber pad 315 is provided at the output end of the driving motor 312. One side of the rubber pad 315 is connected to the upper surface of the primary guide plate 314. When the driving motor 312 is started, the output end of the driving motor 312 drives the rubber pad 315 to rotate, thereby driving the primary guide plate 314 to rotate. A bottom hole is provided on the lower bottom surface of the secondary air duct 31, and the bottom hole is opposite to the air inlet 11, and the bottom hole corresponds to the primary guide plate 314, thereby ensuring that the airflow generated by the fan component 2 can be blown to the surface of the primary guide plate 314.

[0041] The upper surface of the secondary air duct 31 is provided with an internal cylinder 316, and an electric push rod 317 is provided inside the internal cylinder 316. One end of the electric push rod 317 is magnetically connected to the primary guide plate 314. Two groups of internal cylinders 316 are provided. The two groups of internal cylinders 316 are distributed at 90 degrees, and one group of internal cylinders 316 is close to the connecting pipe 32. When air needs to be supplied to the secondary air duct 31, one end of the primary guide plate 314 is made to correspond to the secondary air duct 31, so that the fan The airflow generated by component 2 can enter the secondary air duct 31 along the primary guide plate 314. At the same time, the electric push rod 317 is extended so that one end of the electric push rod 317 is attracted to the primary guide plate 314 to ensure that the primary guide plate 314 will not swing due to the airflow. At the same time, the extension and retraction of the electric push rod 317 can achieve fine adjustment of the angle of the primary guide plate 314. When the electric push rod 317 is continuously shortened, the electric push rod 317 and the primary guide plate 314 will be separated.

[0042] A docking port 318 is provided on one side of the secondary air duct 31, and the secondary air duct 31 is connected to the connecting pipe 32 through the docking port 318. A baffle 319 is provided inside the secondary air duct 31, and a control valve is provided on the outer surface of the baffle 319. There are multiple groups of control valves. When it is necessary to adjust the airflow in the boiler burner, it is achieved according to the number of opened control valves. When it is necessary to increase the airflow velocity, the number of control valves is closed. When it is necessary to increase the airflow volume, the number of opened control valves is increased.

[0043] A partition plate 321 is hinged inside the connecting pipe 32, and a hydraulic push rod 322 is provided on one side of the partition plate 321. Both ends of the hydraulic push rod 322 are provided with movable parts 323. The two ends of the hydraulic push rod 322 are movably connected to the partition plate 321 and the inner wall of the connecting pipe 32 through the movable parts 323. When it is necessary to supply air to the primary air duct 33, the control valve on the baffle 319 is closed, and the partition plate 321 is opened by the hydraulic push rod 322, and the partition plate 321 is made to have a certain inclination angle. At this time, the airflow generated by the fan component 2 can be blown into the primary air duct 33.

[0044] Specifically, the motor 22 is started, and the rotation of its output end drives the impeller in the fan unit 21 to rotate, thereby generating airflow. The airflow generated by the fan unit 21 enters the secondary air duct 31 along the air inlet 11, and the airflow temperature, airflow speed and airflow direction inside the secondary air duct 31, the connecting pipe 32 and the primary air duct 33 are detected by the temperature monitoring unit and the hot wire anemometer. The airflow direction is displayed on the display screen of the control panel 4 through the animation display module, and the airflow direction identification module is used to mark the arrow, and the speed marking module is used to mark the airflow direction inside the secondary air duct 31, the connecting pipe 32 and the primary air duct 33. When an abnormal phenomenon occurs, the abnormal warning module issues an alarm. When the airflow direction inside the secondary air duct 31, the connecting pipe 32 and the primary air duct 33 is not optimal, the electric push rod 317 can be used to extend and retract to achieve fine adjustment of the angle of the primary guide plate 314, thereby changing the direction of the airflow blowing to the primary guide plate 314. At the same time, the hydraulic push rod 322 is used to change the inclination angle of the partition plate 321, thereby changing the flow angle of the airflow, thereby reducing the kinetic energy loss of the airflow and ensuring that the airflow speed is not affected, thereby achieving effective regulation of the coal mill wind speed and indirectly balancing the boiler steam temperature deviation.

[0045] In order to solve the technical problem of how to further reduce the kinetic energy loss of airflow, such as Figure 7-Figure 12 As shown, the following preferred technical solutions are provided:

[0046] The primary air duct 33 includes a main pipe 331 arranged at one end of the connecting pipe 32, a secondary pipe 332 arranged at one end of the main pipe 331, and a pressurized air pump 333 arranged inside the primary air duct 33. Both ends of the pressurized air pump 333 are provided with air connection pipes 334. The main pipe 331 is provided with an air guide component 335. The pipe openings of the two groups of air connection pipes 334 are respectively opposite to the air guide component 335 and the secondary pipe 332. A water storage bag 336 is provided on the inner side wall of the main pipe 331. An external water pipe 337 is provided on the outer surface of the main pipe 331. A main slot 338 is provided on one side of the main pipe 331. The main pipe 331 passes through the main slot. The port 338 is connected with the connecting pipe 32, a slide groove 339 is provided at the bottom of the main pipe 331, the air guide component 335 is opposite to the water storage bag 336, and the external water pipe 337 is connected with the water storage bag 336. The airflow coming out of the connecting pipe 32 will pass through the surface of the air guide component 335. After being guided by the air guide component 335, the airflow will gradually flow upward, and then the pressurized air pump 333 will be turned on, and the pressurized air pump 333 will be used to pressurize the airflow and transport it to the auxiliary pipe 332. When the airflow blows to the air guide component 335, the air guide component 335 will move along the slide groove 339, so that one end of the air guide component 335 will hit the water storage bag 336.

[0047] The air guide component 335 includes a special-shaped block 3351 arranged inside the main pipe 331, a slider 3354 is arranged at the lower end of the special-shaped block 3351, a front plate 3356 is arranged at one end of the special-shaped block 3351, a roller 3357 is arranged at the lower end of the front plate 3356, the special-shaped block 3351 is slidably connected with the slide groove 339 through the slider 3354, the roller 3357 is located inside the slide groove 339, a curved surface 1 3353 is opened on one side of the special-shaped block 3351, and a curved surface 2 3352 is opened on the other side of the special-shaped block 3351, and a curved surface 3352 is opened on the curved surface 2 3352. A groove is provided, in which a cloth bag roller 3355 is rotatably arranged, a drip hole 3358 is provided in the groove, and the drip hole 3358 is opposite to the slide groove 339. The airflow coming out of the connecting pipe 32 will pass through the special-shaped block 3351, mainly through the curved surface 2 3352. The power of the airflow will make the cloth bag roller 3355 rotate. The rotating cloth bag roller 3355 can further remove impurities and dust in the airflow. At the same time, the airflow will also blow the special-shaped block 3351 to move along the slide groove 339, so that the curved surface 1 3353 contacts and squeezes the water storage bag 336.

[0048] The special-shaped block 3351 is provided with a water absorption plate 33511 inside, and a plug-in tube 33512 is provided at one end of the water absorption plate 33511, and one end of the plug-in tube 33512 passes through the curved surface 1 3353. One side of the water absorption plate 33511 is in contact with the cloth bag roller 3355. One side of the water storage bag 336 is in a shape that fits with the curved surface 1 3353, and one side of the water storage bag 336 is provided with a water outlet pipe, and a pressure valve is provided in the water outlet pipe. The water outlet pipe corresponds to the plug-in tube 33512. When the special-shaped block 3351 squeezes the storage bag, the pressure valve is provided in the water outlet pipe, and the pressure valve is provided in the water outlet pipe. The ... When the water bag 336 is filled, the water in the water storage bag 336 will enter the plug-in tube 33512 from the water outlet pipe, and the water in the plug-in tube 33512 will make the water absorption plate 33511 moist, and the moistened water absorption plate 33511 will make the bag roller 3355 moist, thereby improving the dust removal quality. In addition, the excess water in the water absorption plate 33511 will fall into the groove, and then flow from the groove to the drip hole 3358, and finally fall into the slide groove 339, indirectly reducing the friction between the slide groove 339 and the slider 3354.

[0049] An adjusting assembly 34 is arranged inside the auxiliary pipe 332. The adjusting assembly 34 includes a panel 347 arranged inside the auxiliary pipe 332. A through hole is opened on the outer surface of the panel 347. A branch pipe 341 is inserted into the through hole. A porous plate 342 is arranged inside the branch pipe 341. A positioning rod 343 is also arranged inside the auxiliary pipe 332. One end of the positioning rod 343 is connected to the panel 347. An electric telescopic rod 344 is arranged on the outer surface of the positioning rod 343. A mounting plate 345 is arranged at one end of the electric telescopic rod 344. A shielding plate 346 is arranged on one side of the mounting plate 345. The baffle plate 346 is located inside the branch pipe 341, and one side of the baffle plate 346 is in contact with the surface of the porous plate 342. The airflow in the main pipe 331 will enter the sub-pipe 332, and then enter the branch pipe 341 from the sub-pipe 332. The branch pipe 341 is provided with six groups, and the six groups of branch pipes 341 are all connected to the pulverized coal pipes. When it is necessary to adjust the air flow rate inside the six pulverized coal pipes, it is sufficient to adjust the air flow rate inside the branch pipe 341. The holes on the porous plate 342 can be opened and closed by extending and retracting the electric telescopic rod 344. If the flow rate needs to be increased, more holes are closed, and vice versa.

[0050] Specifically, after the airflow enters the main pipe 331, it will pass through the special-shaped block 3351. The power of the airflow will cause the bag roller 3355 to rotate. The rotating bag roller 3355 can further remove impurities and dust in the airflow. At the same time, the airflow will also blow the special-shaped block 3351 to move along the slide groove 339, so that the curved surface 1 3353 contacts and squeezes the water storage bag 336. On the one hand, the airflow will not blow directly to the inner wall of the main pipe 331, and the special-shaped block 3351 will play a buffering effect to reduce the kinetic energy loss of the airflow. On the other hand, the airflow will not blow directly to the inner wall of the main pipe 331, which will also reduce the generation of noise.

[0051] When the special-shaped block 3351 squeezes the water storage bag 336, the water in the water storage bag 336 will enter the plug-in tube 33512 from the water outlet pipe, and the water in the plug-in tube 33512 will make the water absorption plate 33511 wet, and the wetted water absorption plate 33511 will make the bag roller 3355 wet, thereby improving the dust removal quality;

[0052] In addition, excess water in the water absorption plate 33511 will fall into the groove, then flow from the groove to the drip hole 3358, and finally fall into the slide 339, indirectly reducing the friction between the slide 339 and the slider 3354, improving the smoothness of the airflow blowing the special-shaped block 3351, and also indirectly reducing the kinetic energy loss of the airflow. Because the auxiliary pipe 332 is connected to the coal powder pipe of the coal mill, when the kinetic energy loss of the airflow is smaller, the airflow will carry more coal powder, which will make the boiler burn more fully and ignite earlier, effectively reducing the flame center, increasing the heat absorption of the water-cooled wall area, and reducing the heat absorption of the screen passing area, so that the heat load of the screen passing area on both sides tends to be consistent.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A supercritical boiler steam temperature deviation regulating device, comprising a main box (1), characterized in that: A fan component (2) is arranged inside the main box (1), an air flow component (3) is arranged at the upper end of the main box (1), a control panel (4) is arranged on one side of the main box (1), and an air outlet of the fan component (2) is connected to the air flow component (3); The air flow assembly (3) comprises a secondary air duct (31) arranged at the upper end of the main box (1), a connecting pipe (32) arranged at one side of the secondary air duct (31), and a primary air duct (33) arranged at one end of the connecting pipe (32), the secondary air duct (31) being connected to the boiler burner, and the primary air duct (33) being connected to the coal mill; A main processing module is arranged inside the control panel (4). The main processing module is signal-connected to an animation display module. The animation display module is signal-connected to an airflow direction identification module. The airflow direction identification module is signal-connected to a speed marking module. The speed marking module is signal-connected to an abnormal warning module. A temperature monitoring unit and a hot-wire anemometer are arranged inside the secondary air duct (31), the connecting pipe (32) and the primary air duct (33). The temperature monitoring unit and the hot-wire anemometer are signal-connected to the main processing module. The airflow temperature, airflow speed and airflow direction inside the secondary air duct (31), the connecting pipe (32) and the primary air duct (33) are detected by the temperature monitoring unit and the hot-wire anemometer. The airflow direction is displayed on a display screen on the control panel (4) by the animation display module, and an arrow is marked by the airflow direction identification module. At the same time, the speed marking module is used to mark the airflow speed inside the secondary air duct (31), the connecting pipe (32) and the primary air duct (33). When an abnormal phenomenon occurs, the abnormal warning module issues an alarm.

2. A supercritical boiler steam temperature deviation regulating device as claimed in claim 1, characterized in that: The fan component (2) comprises a fan unit (21) arranged inside the main housing (1), a motor (22) arranged on one side of the fan unit (21), and a base (23) arranged at the lower end of the motor (22); a support frame (24) is arranged at the lower end of the fan unit (21); a base (25) is arranged at the lower ends of the support frame (24) and the base (23); and the base (25) is connected to the inner wall of the main housing (1).

3. A supercritical boiler steam temperature deviation regulating device as claimed in claim 2, characterized in that: A cylinder (311) is embedded inside the secondary air duct (31), a driving motor (312) is arranged at the upper end of the cylinder (311), an L-shaped rod (313) is arranged on the outer surface of the driving motor (312), one end of the L-shaped rod (313) is connected to the secondary air duct (31), a primary guide plate (314) is arranged inside the secondary air duct (31), a rubber pad (315) is arranged at the output end of the driving motor (312), and one side of the rubber pad (315) is connected to the upper surface of the primary guide plate (314).

4. A supercritical boiler steam temperature deviation regulating device as claimed in claim 3, characterized in that: An internal cylinder (316) is arranged on the upper surface of the secondary air duct (31), an electric push rod (317) is arranged inside the internal cylinder (316), one end of the electric push rod (317) is magnetically connected to the primary guide plate (314), two groups of internal cylinders (316) are arranged, the two groups of internal cylinders (316) are distributed at ninety degrees, and one group of the internal cylinders (316) is close to the connecting pipe (32).

5. A supercritical boiler steam temperature deviation regulating device as claimed in claim 4, characterized in that: A docking port (318) is provided on one side of the secondary air duct (31), and the secondary air duct (31) is connected to the connecting pipe (32) via the docking port (318). A baffle (319) is provided inside the secondary air duct (31), and a control valve is provided on the outer surface of the baffle (319), and a plurality of control valves are provided.

6. A supercritical boiler steam temperature deviation regulating device as claimed in claim 5, characterized in that: A partition plate (321) is hingedly connected inside the connecting pipe (32), a hydraulic push rod (322) is arranged on one side of the partition plate (321), both ends of the hydraulic push rod (322) are provided with movable parts (323), and the two ends of the hydraulic push rod (322) are movably connected to the partition plate (321) and the inner wall of the connecting pipe (32) through the movable parts (323).

7. A supercritical boiler steam temperature deviation regulating device as claimed in claim 6, characterized in that: The primary air duct (33) comprises a main pipe (331) arranged at one end of the connecting pipe (32), a secondary pipe (332) arranged at one end of the main pipe (331), and a pressurized air pump (333) arranged inside the primary air duct (33). Both ends of the pressurized air pump (333) are provided with air connection pipes (334). The main pipe (331) is provided with an air guide component (335). The pipe openings of the two groups of air connection pipes (334) are respectively opposite to the air guide component (335) and the secondary pipe (332). A water storage bag (336) is arranged on the inner wall of the main pipe (331), an external water pipe (337) is arranged on the outer surface of the main pipe (331), a main notch (338) is provided on one side of the main pipe (331), the main pipe (331) is connected to the connecting pipe (32) through the main notch (338), a sliding groove (339) is provided at the bottom of the main pipe (331), an air guide component (335) is opposite to the water storage bag (336), and the external water pipe (337) is connected to the water storage bag (336).

8. A supercritical boiler steam temperature deviation regulating device as claimed in claim 7, characterized in that: The air guide component (335) comprises a special-shaped block (3351) arranged inside the main pipe (331); a slider (3354) is arranged at the lower end of the special-shaped block (3351); a front plate (3356) is arranged at one end of the special-shaped block (3351); a roller (3357) is arranged at the lower end of the front plate (3356); the special-shaped block (3351) is slidably connected to the slide groove (339) via the slider (3354); The roller (3357) is located inside the slide groove (339), a curved surface 1 (3353) is provided on one side of the special-shaped block (3351), a curved surface 2 (3352) is provided on the other side of the special-shaped block (3351), a groove is provided on the curved surface 2 (3352), a bag roller (3355) is rotatably arranged in the groove, a drip hole (3358) is provided in the groove, and the drip hole (3358) is opposite to the slide groove (339).

9. A supercritical boiler steam temperature deviation regulating device as claimed in claim 8, characterized in that: The special-shaped block (3351) is provided with a water absorption plate (33511) inside, one end of the water absorption plate (33511) is provided with a plug-in tube (33512), one end of the plug-in tube (33512) passes through the curved surface one (3353), one side of the water absorption plate (33511) is in contact with the cloth bag roller (3355), one side of the water storage bag (336) is in a shape that fits with the curved surface one (3353), and one side of the water storage bag (336) is provided with a water outlet pipe, a pressure valve is provided in the water outlet pipe, and the water outlet pipe corresponds to the plug-in tube (33512).

10. A supercritical boiler steam temperature deviation regulating device as claimed in claim 9, characterized in that: An adjusting component (34) is arranged inside the auxiliary pipe (332). The adjusting component (34) includes a baffle (347) arranged inside the auxiliary pipe (332). A through hole is opened on the outer surface of the baffle (347). A branch pipe (341) is inserted into the through hole. A porous plate (342) is arranged inside the branch pipe (341). A positioning rod (343) is also arranged inside the auxiliary pipe (332). One end of the positioning rod (343) is connected to the baffle (347). An electric telescopic rod (344) is arranged on the outer surface of the positioning rod (343). A mounting plate (345) is arranged at one end of the electric telescopic rod (344). A shielding plate (346) is arranged on one side of the mounting plate (345). The shielding plate (346) is located inside the branch pipe (341), and one side of the shielding plate (346) is in contact with the surface of the porous plate (342).

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