CN220939722U - A heat recovery mechanism for a thermal power plant - Google Patents

Abstract

The utility model relates to the technical field of heat recovery, and discloses a heat recovery mechanism of a thermal power plant, including a filter box, a mounting frame fixedly connected to the top wall of the filter box, a motor fixedly connected inside the mounting frame, a rotating rod fixedly connected to the driving end of the motor, a plurality of mounting rods fixedly connected to the outer wall of the rotating rod, a mounting sleeve fixedly connected to one end of the plurality of mounting rods close to the inner wall of the filter box, a movable plate slidably connected to the inside of the mounting sleeve, a plurality of springs fixedly connected to one side of the movable plate, and a movable plate fixedly connected to the other side of the movable plate. In the utility model, the inner wall of the filter box that is easy to be adhered to dirt can be automatically cleaned, and dirt and other impurities can be prevented from being blocked inside the sewage pipe when discharging sewage, and the tap water inside the heat recovery box can be stirred at the same time, so that the tap water inside the heat recovery box is in a flowing state.

Description

A heat recovery mechanism for a thermal power plant

Technical Field

The utility model relates to the technical field of heat energy recovery, in particular to a heat energy recovery mechanism of a thermal power plant.

Background technique

A thermal power plant is a coal-fired power plant that uses coal to boil water to generate steam. The steam drives the turbine to rotate. The turbine shaft is equipped with a coil, which then rotates in a magnetic field to generate an induced current. When coal is burned in a boiler, most of the flue gas generated is discharged through the chimney. The temperature of the flue gas is generally between 160°C and 220°C, so the flue gas carries a lot of heat. In order not to waste the heat energy in the flue gas, a heat recovery device is often used to heat the water with the heat energy.

After searching, the authorized patent with announcement number CN218645597U discloses a heat recovery and utilization device for a thermal power plant. The patent cleans the filter plate to prevent dust from clogging the filter plate and causing poor filtration efficiency. The tap water in the heat recovery box is heated by the heat transmission pipe to recycle the heat energy in the flue gas.

Although the above patent solves the problem of filter plate clogging, when the flue gas enters the interior of the filter box, it will carry a large amount of smoke and dust and contact the inner wall of the filter box, causing the inner wall of the filter box to be stuck with a large amount of smoke and dust and other dirt. Driven by the water flow, the smoke on the inner wall of the filter box will be carried out, but the more stubborn smoke will still stick to the inner wall of the filter box, and in the process of discharging sewage, when there are too many impurities in the sewage, it will be blocked inside the sewage pipe, affecting the discharge of sewage. Therefore, in view of the above shortcomings, a heat recovery mechanism for a thermal power plant is proposed.

Utility Model Content

In order to make up for the above shortcomings, the utility model provides a heat recovery mechanism for a thermal power plant, aiming to improve the problem that a large amount of smoke and dust will stick to the inner wall of the filter box on the heat recovery mechanism in the prior art, making it difficult to clean.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A heat recovery mechanism of a thermal power plant comprises a filter box, the top wall of the filter box is fixedly connected to a mounting frame, the mounting frame is fixedly connected to a motor inside, a driving end of the motor is fixedly connected to a rotating rod, the outer wall of the rotating rod is fixedly connected to a plurality of mounting rods one, one end of the plurality of mounting rods one close to the inner wall of the filter box is fixedly connected to a mounting sleeve, a movable plate is slidably connected inside the mounting sleeve, one side of the movable plate is fixedly connected to a plurality of springs, the other side of the movable plate is fixedly connected to a movable plate, the other side of the movable plate is fixedly connected to a brush two, the bottom end of the rotating rod is fixedly connected to a connecting rod, the outer wall of the connecting rod is fixedly connected to a plurality of mounting rods two, one end of the plurality of mounting rods two close to the inner wall of the filter box is fixedly connected to a scraper, the outer wall of the rotating rod is fixedly connected to a spray assembly, the outer wall of the filter box is fixedly connected to a heat transfer pipe, the outside of the heat transfer pipe is fixedly connected to a heat recovery box, a stirring assembly is arranged inside the heat recovery box, and the outer wall of the heat recovery box is fixedly connected to a circulation assembly.

Through the above technical scheme, by starting the motor, the rotating rod rotates under the drive of the motor, thereby driving the multiple installation rods 1 to rotate, and then driven by the installation rod 1, the installation sleeve rotates inside the filter box, thereby driving the movable plate to rotate, and driven by the movable plate, the brush 2 moves along the inside of the filter box, and then the inner wall of the filter box is cleaned to prevent dirt from sticking to the inner wall of the filter box and accumulating too much to affect subsequent use. At the same time, the rotating rod will drive the connecting rod to rotate, and driven by the connecting rod, the multiple installation rods 2 rotate, thereby driving the scraper to clean the inner wall of the sewage pipe.

Furthermore, the spray assembly includes an annular tube, the middle portion of which is fixedly connected to the outer wall of the rotating rod, the outer wall of which is fixedly connected to a plurality of nozzles, and the outer wall of which is fixedly connected to a hose.

Through the above technical solution, the annular tube rotates inside the filter box driven by the rotating rod, thereby driving multiple nozzles to rotate, and then spraying water evenly, making it convenient for a pair of brushes to clean the filter plate, and connecting the hose to external tap water to ensure that the inside of the annular tube is always full of water.

Furthermore, a filter plate is fixedly connected to the inner wall of the filter box, a plurality of brushes are fixedly connected to the outer wall of the rotating rod, and the tops of the plurality of brushes are arranged at the bottom of the filter plate.

Through the above technical solution, impurities such as dust in the flue gas are filtered out under the action of the filter plate. At the same time, multiple brushes can clean the bottom of the filter plate under the drive of the rotating rod, thereby avoiding clogging of the filter holes in the filter plate.

Furthermore, the outer wall of the filter box is fixedly connected to a smoke inlet pipe, an electric valve 1 is provided in the middle of the smoke inlet pipe, the bottom of the filter box is fixedly connected to a sewage pipe, an electric valve 2 is provided in the middle of the sewage pipe, the top of the heat energy recovery box is fixedly connected to a water inlet pipe, and the right end of the heat energy transmission pipe is fixedly connected to a flue gas purification box.

Through the above technical solution, by starting electric valve one, the flue gas can enter the interior of the filter box. When the sewage inside the filter box needs to be discharged, the electric valve two can be started so that the sewage can be discharged from the inside of the sewage pipe. The filtered flue gas enters the interior of the flue gas purification box through the transmission of the heat energy transmission pipe for purification treatment, which can ensure that the environment will not be polluted when discharged.

Furthermore, the connecting rod, the second mounting rod and the exterior of the scraper are all arranged inside the sewage pipe.

Through the above technical solution, driven by the connecting rod, the second mounting rod drives the scraper to scrape along the inside of the sewage pipe, which can avoid impurities in the sewage from clogging the inside of the sewage pipe when the sewage is discharged.

Furthermore, the stirring assembly includes a pulley 1, the middle part of which is fixedly connected to the outer wall of the rotating rod, the inner part of the heat recovery box is rotatably connected to a movable rod, the outer wall of the movable rod is fixedly connected to multiple groups of stirring rods, the top of the movable rod is fixedly connected to a pulley 2, and the outer parts of the pulleys 1 and 2 are provided with belts.

Through the above technical scheme, under the drive of the rotating rod, pulley one rotates, and under the drive of pulley one, the belt runs, and under the running of the belt, pulley two rotates, so that pulley two drives the movable rod to rotate inside the heat energy recovery box, and then drives multiple groups of stirring rods to stir the tap water inside the heat energy recovery box, so that the tap water can be heated evenly.

Furthermore, the circulation component includes a water pump, the outer wall of the water pump is fixedly connected to the outer wall of the heat recovery box, the output end of the water pump is fixedly connected to a circulation pipe, and the top end of the circulation pipe is fixedly connected to the top of the heat recovery box.

Through the above technical scheme, by starting the water pump, under the action of the water pump, the tap water inside the heat energy recovery box can enter the interior of the circulation pipe, and under the introduction of the circulation pipe, the tap water returns to the interior of the heat energy recovery box, thereby increasing the fluidity of the tap water inside the heat energy recovery box, thereby further improving the heating efficiency of the tap water.

Furthermore, a water outlet pipe is fixedly connected to the bottom of the circulation pipe, and an electric valve three is arranged in the middle of the water outlet pipe.

Through the above technical solution, when the tap water is heated, the electric valve three can be started to discharge the heated tap water from the water outlet pipe.

The utility model has the following beneficial effects:

1. In the utility model, by starting the motor, with the cooperation of the rotating rod, the first mounting rod, the mounting sleeve, the spring, the movable plate, the moving plate, the second brush, the connecting rod, the second mounting rod and the scraper, the inner wall of the filter box that is easy to stick to dirt can be automatically cleaned, and dirt and other impurities can be prevented from being blocked inside the sewage pipe during sewage discharge, thereby ensuring the normal use of the filter box for flue gas filtration, reducing the number of inspections and maintenance of the filter box, and improving the practicality of the mechanism.

2. In the utility model, the rotating rod drives the pulley 1 to rotate and start the water pump. With the cooperation of the belt, pulley 2, movable rod, stirring rod and circulation pipe, the tap water inside the heat recovery box is stirred, so that the tap water inside the heat recovery box is in a flowing state, thereby increasing the contact area between the tap water and the outer wall of the heat energy transmission pipe, thereby improving the heating efficiency of the tap water.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a three-dimensional diagram of a heat recovery mechanism of a thermal power plant proposed by the present invention;

FIG2 is a schematic diagram of the internal structure of a filter box of a heat recovery mechanism of a thermal power plant proposed by the present invention;

FIG3 is a schematic diagram of the internal structure of a mounting sleeve of a heat recovery mechanism of a thermal power plant proposed by the present invention;

FIG. 4 is an enlarged view of point A in FIG. 2 .

illustration:

1. Filter box; 2. Mounting frame; 3. Motor; 4. Rotating rod; 5. Annular pipe; 6. Nozzle; 7. Hose; 8. Filter plate; 9. Brush 1; 10. Electric valve 1; 11. Mounting rod 1; 12. Mounting sleeve; 13. Spring; 14. Movable plate; 15. Moving plate; 16. Brush 2; 17. Connecting rod; 18. Mounting rod 2; 19. Scraper; 20. Sewage pipe; 21. Electric valve 2; 22. Pulley 1; 23. Heat transfer pipe; 24. Heat recovery box; 25. Movable rod; 26. Stirring rod; 27. Pulley 2; 28. Belt; 29. Water pump; 30. Circulation pipe; 31. Water inlet pipe; 32. Flue gas purification box; 33. Water outlet pipe; 34. Electric valve 3; 35. Smoke inlet pipe.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

1-3, an embodiment of the utility model is provided: a heat recovery mechanism of a thermal power plant, comprising a filter box 1, a mounting frame 2 is fixedly connected to the top wall of the filter box 1, a motor 3 is fixedly connected to the mounting frame 2, a rotating rod 4 is fixedly connected to the driving end of the motor 3, the rotating rod 4 rotates under the drive of the motor, a plurality of mounting rods 11 are fixedly connected to the outer wall of the rotating rod 4, and the plurality of mounting rods 11 can rotate inside the filter box 1 under the drive of the rotating rod 4, a plurality of mounting rods 11 are fixedly connected to a mounting sleeve 12 at one end close to the inner wall of the filter box 1, a movable plate 14 is slidably connected to the inside of the mounting sleeve 12, a plurality of springs 13 are fixedly connected to one side of the movable plate 14, a movable plate 15 is fixedly connected to the other side of the movable plate 14, a brush 16 is fixedly connected to the other side of the movable plate 15, when the brush 16 rotates along the inner wall of the filter box 1, it is affected by the arc surface of the inner wall of the filter box 1, and reacts to the movable plate 15, so that the movable plate 15 drives the movable plate 1 4 moves inside the mounting sleeve 12, thereby squeezing the spring 13, so that the spring 13 is compressed and a rebound reaction force is generated, thereby ensuring that the brush 16 is always in contact with the inner wall of the filter box 1, improving the cleaning effect, ensuring the normal use of the filter box 1 for flue gas filtration, and reducing the number of inspections and maintenance of the filter box 1, improving the practicality of the mechanism, the bottom end of the rotating rod 4 is fixedly connected with a connecting rod 17, and the connecting rod 17 can rotate synchronously under the drive of the rotating rod 4, and the outer wall of the connecting rod 17 is fixedly connected with a plurality of mounting rods 2 18, and the plurality of mounting rods 2 18 rotate synchronously under the drive of the connecting rod 17, and the plurality of mounting rods 2 18 are fixedly connected with a scraper 19 at one end close to the inner wall of the filter box 1, and the outer parts of the connecting rod 17, the mounting rod 2 18, and the scraper 19 are all arranged inside the sewage pipe 20, and the scraper 19 can clean the inner wall of the sewage pipe 20 under the drive of the mounting rod, thereby preventing the impurities in the sewage from clogging the inner wall of the sewage pipe 20.

Referring to Figure 2, the outer wall of the rotating rod 4 is fixedly connected to a spray assembly, which includes an annular tube 5. The middle part of the annular tube 5 is fixedly connected to the outer wall of the rotating rod 4. The annular tube 5 rotates synchronously under the drive of the rotating rod 4. The outer wall of the annular tube 5 is fixedly connected to a plurality of nozzles 6. The outer wall of the annular tube 5 is fixedly connected to a hose 7. The hose 7 is connected to external tap water and can supply water to the inside of the annular tube 5. The inner wall of the filter box 1 is fixedly connected to a filter plate 8. The plurality of nozzles 6 can rotate synchronously under the drive of the annular tube 5, so that the cleaning water is evenly sprayed toward the filter plate 8. The outer wall of the rotating rod 4 is fixedly connected to a plurality of brushes 9. The tops of the plurality of brushes 9 are arranged at the bottom of the filter plate 8. The brush 9 can clean the filter plate 8 under the drive of the rotating rod 4. Under the action of the clean water sprayed from the nozzle 6, the brush 9 can clean the filter plate 8.

2 and 4 , a smoke inlet pipe 35 is fixedly connected to the outer wall of the filter box 1, and an electric valve 10 is arranged in the middle of the smoke inlet pipe 35. The electric valve 10 can control the smoke from the smoke inlet pipe 35 to enter the interior of the filter box 1. A sewage pipe 20 is fixedly connected to the bottom of the filter box 1, and an electric valve 21 is arranged in the middle of the sewage pipe 20. The electric valve 21 can control the sewage to be discharged from the sewage pipe 20. A heat energy transmission pipe 23 is fixedly connected to the outer wall of the filter box 1. A heat energy recovery box 24 is fixedly connected to the outside of the heat energy transmission pipe 23. A water inlet pipe 31 is fixedly connected to the top of the heat energy recovery box 24. The water inlet pipe 31 can facilitate tap water to enter the interior of the heat energy recovery box 24, so that the smoke inside the heat energy transmission pipe 23 heats the tap water through the heat energy transmission pipe 23, so that the heat energy can be recovered and utilized. A smoke purification box 32 is fixedly connected to the right end of the heat energy transmission pipe 23. The smoke purification box 32 can process the smoke to prevent it from being discharged into the air to pollute the environment.

Referring to Figure 2, a stirring assembly is provided inside the heat recovery box 24, and the stirring assembly includes a pulley 22. The middle part of the pulley 22 is fixedly connected to the outer wall of the rotating rod 4. The pulley 22 can rotate under the drive of the rotating rod 4. The heat recovery box 24 is rotatably connected to a movable rod 25 inside. The outer wall of the movable rod 25 is fixedly connected to multiple groups of stirring rods 26. The top of the movable rod 25 is fixedly connected to a pulley 27. The outer sleeves of the pulleys 22 and 27 are provided with a belt 28. The belt 28 runs under the drive of the pulley 22, and then drives the pulley 27 to rotate. Under the drive of the pulley 27, the movable rod 25 drives the multiple groups of stirring rods to rotate inside the heat recovery box 24 to stir the tap water inside, which can increase the heating area of the tap water and improve its heating efficiency.

The outer wall of the heat recovery box 24 is fixedly connected with a circulation component, and the circulation component includes a water pump 29. The outer wall of the water pump 29 is fixedly connected to the outer wall of the heat recovery box 24. The output end of the water pump 29 is fixedly connected with a circulation pipe 30. The top of the circulation pipe 30 is fixedly connected to the top of the heat recovery box 24. Under the action of the water pump 29, tap water enters the interior of the circulation pipe 30, and then the tap water returns to the interior of the heat recovery box 24 through the circulation pipe 30, thereby increasing the fluidity of the tap water and further improving the heating efficiency of the tap water. The bottom of the circulation pipe 30 is fixedly connected with a water outlet pipe 33, and an electric valve three 34 is arranged in the middle of the water outlet pipe 33. The electric valve three 34 can be used to control the tap water to be discharged from the water outlet pipe 33.

Working principle: During operation, the smoke from the thermal power plant can be introduced into the interior of the filter box 1 through the smoke inlet pipe 35. Under the filtering action of the filter plate 8 inside the filter box 1, the dust in the smoke is filtered out. At this time, the motor 3 is started. Under the drive of the motor 3, the rotating rod 4 is rotated, so that the pulley 22, the annular tube 5, the brush 9, the mounting rod 11 and the connecting rod 17 are all rotated synchronously under the drive of the rotating rod 4. As the annular tube 5 rotates, the nozzle 6 can be driven to rotate, thereby spraying water toward the top of the filter plate 8. At this time, under the rotation action of multiple brushes 9, the water sprayed by the nozzle 6 cooperates with each other to clean the filter plate 8 to avoid dust clogging. The filter plate 8 affects the subsequent filtering treatment of the flue gas. At the same time, the multiple mounting rods 11 will drive the mounting sleeve 12 to rotate. Driven by the mounting sleeve 12, the movable plate 15 is rotated, so that the movable plate 15 drives the brush 2 16 to rotate along the inner wall of the filter box 1. As the brush 2 16 rotates, the brush 2 16 can drive the movable plate 15 to move inside the mounting sleeve 12 under the action of the arc surface of the inner wall of the filter box 1, and then drive the movable plate 14 to squeeze the spring 13, so that the spring 13 is compressed to generate a rebound reaction force, thereby ensuring that the brush 2 16 is always in contact with the inner wall of the filter box 1, and the part of the inner wall that is easy to stick to dust and other impurities is At the same time, under the rotation of the connecting rod 17, the plurality of mounting rods 18 drive the scraper 19 to rotate and move along the inner wall of the sewage pipe 20, so that when the sewage is discharged, the dirt blocks the sewage pipe 20. At this time, the electric valve 21 can be opened to discharge the sewage. As the dust in the flue gas is filtered, the filtered dust will enter the interior of the heat energy transmission pipe 23. When passing through the interior of the heat energy transmission pipe 23, the tap water in the heat energy recovery box 24 can be heated to achieve the purpose of heat energy recovery. At the same time, as the flue gas moves, it can be purified inside the flue gas purification box 32 to avoid flue gas pollution during discharge. While heating the tap water, the pulley 22 rotates. The rotating rod 4 rotates, thereby driving the belt 28 to run, so that the belt 28 drives the pulley 27 to rotate synchronously, thereby driving the movable rod 25 to rotate, and then driven by the movable rod 25, multiple groups of stirring rods 26 rotate inside the heat energy recovery box 24, thereby stirring the tap water inside the heat energy recovery box 24, increasing its contact area with the outer wall of the heat energy transfer pipe 23, and improving the heating efficiency. At the same time, the water pump 29 is started so that the tap water inside the heat energy recovery box 24 is pumped into the inside of the circulation pipe 30, and then re-circulated from the top of the circulation pipe 30 into the inside of the heat energy recovery box 24, thereby increasing the flow of tap water and thereby increasing its heating rate.

Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 protection scope of the present invention.

Claims (8)

1. A heat recovery mechanism for a thermal power plant, comprising a filter box (1), characterized in that: a mounting frame (2) is fixedly connected to the top wall of the filter box (1), a motor (3) is fixedly connected to the inside of the mounting frame (2), a rotating rod (4) is fixedly connected to the driving end of the motor (3), a plurality of mounting rods (11) are fixedly connected to the outer wall of the rotating rod (4), a plurality of mounting rods (11) are fixedly connected to one end of the mounting rods (11) close to the inner wall of the filter box (1), a movable plate (14) is slidably connected to the inside of the mounting sleeve (12), a plurality of springs (13) are fixedly connected to one side of the movable plate (14), and a movable plate (14) is fixedly connected to the other side of the movable plate (14). 5), a brush 2 (16) is fixedly connected to the other side of the movable plate (15), a connecting rod (17) is fixedly connected to the bottom end of the rotating rod (4), a plurality of mounting rods 2 (18) are fixedly connected to the outer wall of the connecting rod (17), a plurality of mounting rods 2 (18) are fixedly connected to one end of the mounting rods 2 (18) close to the inner wall of the filter box (1), a spray assembly is fixedly connected to the outer wall of the rotating rod (4), a heat transfer pipe (23) is fixedly connected to the outer wall of the filter box (1), a heat recovery box (24) is fixedly connected to the outside of the heat transfer pipe (23), a stirring assembly is arranged inside the heat recovery box (24), and a circulation assembly is fixedly connected to the outer wall of the heat recovery box (24). 2. A heat recovery mechanism for a thermal power plant according to claim 1, characterized in that: the spray assembly comprises an annular tube (5), the middle part of the annular tube (5) is fixedly connected to the outer wall of the rotating rod (4), the outer wall of the annular tube (5) is fixedly connected to a plurality of nozzles (6), and the outer wall of the annular tube (5) is fixedly connected to a hose (7). 3. A heat recovery mechanism for a thermal power plant according to claim 1, characterized in that: a filter plate (8) is fixedly connected to the inner wall of the filter box (1), a plurality of brushes (9) are fixedly connected to the outer wall of the rotating rod (4), and the tops of the plurality of brushes (9) are arranged at the bottom of the filter plate (8). 4. A heat recovery mechanism for a thermal power plant according to claim 1, characterized in that: the outer wall of the filter box (1) is fixedly connected to a smoke inlet pipe (35), the middle of the smoke inlet pipe (35) is provided with an electric valve 1 (10), the bottom of the filter box (1) is fixedly connected to a sewage pipe (20), the middle of the sewage pipe (20) is provided with an electric valve 2 (21), the top of the heat recovery box (24) is fixedly connected to a water inlet pipe (31), and the right end of the heat transmission pipe (23) is fixedly connected to a flue gas purification box (32). 5. A heat recovery mechanism for a thermal power plant according to claim 4, characterized in that the connecting rod (17), the second mounting rod (18), and the outside of the scraper (19) are all arranged inside the sewage pipe (20). 6. A heat recovery mechanism for a thermal power plant according to claim 1, characterized in that: the stirring assembly includes a pulley 1 (22), the middle part of the pulley 1 (22) is fixedly connected to the outer wall of the rotating rod (4), the inner part of the heat recovery box (24) is rotatably connected to a movable rod (25), the outer wall of the movable rod (25) is fixedly connected to multiple groups of stirring rods (26), the top of the movable rod (25) is fixedly connected to a pulley 2 (27), and the outer parts of the pulley 1 (22) and the pulley 2 (27) are provided with belts (28). 7. A heat recovery mechanism for a thermal power plant according to claim 1, characterized in that: the circulation component includes a water pump (29), the outer wall of the water pump (29) is fixedly connected to the outer wall of the heat recovery box (24), the output end of the water pump (29) is fixedly connected to a circulation pipe (30), and the top end of the circulation pipe (30) is fixedly connected to the top of the heat recovery box (24). 8. A heat recovery mechanism for a thermal power plant according to claim 7, characterized in that: a water outlet pipe (33) is fixedly connected to the bottom of the circulation pipe (30), and an electric valve three (34) is provided in the middle of the water outlet pipe (33).