A heat dissipation device for thermal power generation

Abstract

The utility model belongs to the technical field of thermal power generation, especially a heat dissipation device for thermal power generation, in the prior art, the water -cooling pipe inner wall is easy to accumulate incrustation, the heat dissipation plate and water -cooling pipe outer surface are easy to accumulate dust, lead to the problem of the heat dissipation efficiency decline, present and propose the following scheme, it includes the box, the left and right sides of box are all fixedly installed with fixed plate, the top of box is equipped with a plurality of heat dissipation mouths, the inside top side of box is provided with two heat dissipation fans, still include: heat dissipation plate, fixedly installed in the inside of box, water -cooling pipe, fixedly installed at the bottom of box, water tank, fixedly installed at the rear side of box, and the inside fixed mounting of water tank has water pump, the output of water pump is connected with the input of water -cooling pipe fixedly, the utility model, can scrape the inner wall of water -cooling pipe, prevent the inner wall to accumulate incrustation, and can clean the surface of radiating pipe and water -cooling pipe, prevent dust accumulation.

Description

Technical Field

[0001] This application relates to the field of thermal power generation technology, and in particular to a heat dissipation device for thermal power generation. Background Technology

[0002] Thermal power generation utilizes thermal energy to convert it into kinetic energy, which then drives a generator. Specifically, it uses the internal energy of steam to drive the fan blades, which in turn rotates the generator. It is very similar to the generators sold on the market, except that the way thermal energy is generated is not exactly the same. Thermal power plants use coal as fuel. The coal is burned in the boiler, which heats the water in the boiler to generate steam. Then, the steam from the boiler, which has a certain temperature and pressure, enters the steam turbine through the main steam valve and the regulating steam valve. It flows through a series of annularly installed nozzles and moving blades, where it expands and does work, converting its thermal energy into mechanical energy that drives the turbine rotor to rotate. The generator is then driven by a coupling to generate electricity.

[0003] Publication (Announcement) No.: CN216482414U discloses a heat dissipation device for thermal power generation, including an outer frame. A heat dissipation frame is bolted to the bottom between the inner walls of the outer frame. A partition is bolted between the inner walls of the heat dissipation frame. A heat dissipation fan is bolted between the partitions. A bracket is bolted to the outer side of the heat dissipation fan, and the other end of the bracket is bolted to one side of the partition. This utility model installs the outer frame with an mounting plate and then turns on the heat dissipation fan to dissipate heat from the device, thereby greatly improving the heat dissipation effect of the device. This not only improves the thermal power generation effect but also increases the power generation efficiency. This utility model also uses a pressurization pump to drive the coolant in the water-cooling tank from one end of the water-cooling pipe to the other end of the water-cooling pipe back into the water-cooling tank, facilitating water cooling and making it easier for operators to operate, reducing their workload. This utility model is worthy of widespread use.

[0004] In existing technologies, scale easily accumulates on the inner wall of water-cooling pipes, and dust easily accumulates on the outer surface of heat dissipation plates and water-cooling pipes, resulting in a decrease in heat dissipation efficiency. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the easy accumulation of scale on the inner wall of water-cooled pipes and the easy accumulation of dust on the outer surface of heat dissipation plates and water-cooled pipes, which leads to a decrease in heat dissipation efficiency. Therefore, this invention proposes a heat dissipation device for thermal power generation.

[0006] The heat dissipation device for thermal power generation provided in this application adopts the following technical solution: A heat dissipation device for thermal power generation, comprising: The enclosure includes fixed plates on both its left and right sides, multiple ventilation openings on its top, and two cooling fans on the top interior side. It also includes: The heat sink is fixedly installed inside the enclosure; Water-cooled pipes are fixedly installed at the bottom of the enclosure; A water tank is fixedly installed on the rear side of the tank body, and a water pump is fixedly installed inside the water tank. The output end of the water pump is fixedly connected to the input end of the water cooling pipe, and the output end of the water cooling pipe is fixedly connected to the water tank. A cavity is provided on the rear side of the water tank, and a drawer is slidably connected inside the cavity. A heat conduction plate is provided inside the drawer. The scale removal mechanism is located inside the two fixed plates and is used to remove scale from the inside of the water-cooling pipes to improve heat dissipation. The cleaning mechanism, located inside the fixed plate on the right, is used to clean the surface of the water-cooling pipes and heat sink to improve heat dissipation. The power mechanism is located on the cleaning mechanism and connected to the scale removal mechanism to drive the scale removal mechanism.

[0007] Furthermore, the scale removal mechanism includes mounting grooves located inside two fixed plates, close to each other on one side. A first take-up roller and a second take-up roller are rotatably connected to the two mounting grooves respectively. An annular scraper is slidably connected inside the water-cooling pipe. Connecting wires are wound around the first take-up roller and the second take-up roller. One end of each of the two connecting wires passes through the water-cooling pipe and is fixedly connected to the annular scraper.

[0008] Furthermore, both the first and second take-up rollers are fixedly connected to a rotating rod at their rear ends, and both rotating rods are fixedly mounted with a sprocket five, which is meshed with the same chain three.

[0009] Furthermore, the cleaning mechanism includes a groove on the left side inside the fixed plate located on the right side, a screw is rotatably connected inside the groove, and a movable plate is threaded onto the screw.

[0010] Furthermore, the movable plate is slidably connected to the groove, a connecting block is fixedly connected to the left side of the movable plate, a cleaning roller is rotatably connected to the left side of the connecting block, and a motor is fixedly installed on the rear side of the fixed plate on the right side, with the output shaft of the motor fixedly connected to the rear end of the screw.

[0011] Furthermore, a rotating column two is fixedly connected to the front end of the screw, the rotating column two is rotatably connected to the groove, a sprocket two is fixedly installed on the outer surface of the rotating column two, and a rotating column three is fixedly connected to the right end of the cleaning roller, the rotating column three being rotatably disposed inside the connecting block.

[0012] Furthermore, a bevel gear 1 is fixedly installed on the outer surface of the rotating column 3, and a bevel gear 2 is meshed with the bevel gear 1. A telescopic rod is fixedly installed at the front end of the bevel gear 2. The telescopic rod is rotatably connected to the connecting block and the housing. A sprocket 1 is fixedly installed on the outer surface of the telescopic rod. The same chain 1 is meshed with the sprocket 1 and the sprocket 2.

[0013] Furthermore, the power mechanism includes a sprocket three disposed on the outer surface of the rotating column two, the rotating column one is fixedly installed at the front end of the winding roller one, the rotating column one is rotatably connected to the fixed plate, a sprocket four is fixedly installed on the outer surface of the rotating column one, and the same chain two is meshed with the sprocket four and the sprocket three.

[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. This solution uses a forward and reverse motor as a power source and, with the help of mechanical structures such as sprockets, chains, bevel gears, and telescopic rods, synchronously drives the dual cleaning functions of cleaning the outer surface of the water-cooling pipes and heat sinks and scraping off the scale on the inner wall of the water-cooling pipes. This reduces the number of motors and energy consumption, and is suitable for the compact installation requirements of thermal power generation scenarios. 2. This solution is designed for power plants operating in high-dust, scale-prone conditions. The annular scraper works in conjunction with the inner wall of the water-cooling pipe to thoroughly remove stubborn scale. The combined action of the reciprocating and rotating cleaning roller can closely adhere to the heat sink and the outer surface of the water-cooling pipe to remove accumulated dust. The dual cleaning design avoids the problem of reduced heat dissipation efficiency caused by scale and dust accumulation.

[0015] This invention can scrape the inner wall of the water-cooling pipe to prevent scale buildup, and can also clean the surface of the heat dissipation pipe and water-cooling pipe to prevent dust accumulation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a heat dissipation device for thermal power generation proposed in this utility model. Figure 2 This is a schematic diagram of the cooling fan structure of a heat dissipation device for thermal power generation proposed in this utility model; Figure 3 This is a schematic diagram of the heat dissipation plate structure of a heat dissipation device for thermal power generation proposed in this utility model; Figure 4 This is a schematic diagram of the scale removal mechanism of a heat dissipation device for thermal power generation proposed in this utility model. Figure 5 This is a schematic diagram of the cleaning mechanism of a heat dissipation device for thermal power generation proposed in this utility model; Figure 6 This is a schematic diagram of the internal structure of the connecting block of a heat dissipation device for thermal power generation proposed in this utility model. Figure 7 This utility model proposes a heat dissipation device for thermal power generation. Figure 5 Enlarged structural diagram of section A.

[0017] Attached reference numerals: 1. Cabinet; 2. Fixing plate; 3. Vent; 4. Cooling fan; 5. Heat dissipation plate; 6. Water cooling pipe; 7. Water tank; 8. Winding roller one; 9. Winding roller two; 10. Connecting line; 11. Rotating column one; 12. Groove; 13. Screw; 14. Moving plate; 15. Connecting block; 16. Cleaning roller; 17. Telescopic rod; 18. Sprocket one; 19. Rotating column two; 20. Sprocket two; 21. Chain one; 22. Sprocket three; 23. Sprocket four; 24. Chain two; 25. Rotating column three; 26. Bevel gear one; 27. Bevel gear two; 28. Drawer. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example 1 Reference Figures 1-7 A heat dissipation device for thermal power generation includes: a housing 1, with fixing plates 2 fixedly installed on both the left and right sides of the housing 1, allowing the device to be fixed in a designated position; multiple heat dissipation vents 3 are provided on the top of the housing 1; and two cooling fans 4 are installed on the top side inside the housing 1. The forced ventilation of the cooling fans 4 accelerates the flow of hot air inside the housing 1, working in synergy with the water cooling of the water-cooling pipes 6 to significantly improve heat dissipation efficiency; it also includes: Heat sink 5 is fixedly installed inside the housing 1; Water-cooled pipe 6 is fixedly installed at the bottom of the enclosure 1; Water tank 7 is fixedly installed on the rear side of the tank body 1, and a water pump is fixedly installed inside the water tank 7. The output end of the water pump is fixedly connected to the input end of the water cooling pipe 6, and the output end of the water cooling pipe 6 is fixedly connected to the water tank 7 to form a circulating water circuit. A cavity is provided on the rear side of the interior of the water tank 7, and a drawer 28 is slidably connected inside the cavity. A heat-conducting plate is provided inside the drawer 28, and a sealing gasket is provided on the contact surface between the drawer 28 and the cavity to prevent liquid nitrogen from evaporating and leaking. The heat-conducting plate is attached to the side wall of the water tank 7, and the cooling capacity of the liquid nitrogen is transferred to the water in the water tank 7 through the heat-conducting plate. The drawer 28 can be taken out by manually pulling it, and liquid nitrogen can be added to it to cool the water source in the water tank 7. The scale removal mechanism is located inside the two fixed plates 2 and is used to remove scale inside the water cooling pipes 6 to improve heat dissipation. The cleaning mechanism is located inside the fixed plate 2 on the right side and is used to clean the surface of the water cooling pipe 6 and the heat sink 5 to improve the heat dissipation effect. The power mechanism is located on the cleaning mechanism and connected to the scale removal mechanism to drive the scale removal mechanism.

[0020] Reference Figure 4 The scale removal mechanism includes mounting slots located close to each other inside two fixed plates 2. A first take-up roller 8 and a second take-up roller 9 are rotatably connected to the two mounting slots, respectively. An annular scraper is slidably connected inside the water-cooling pipe 6. The outer circumference of the annular scraper has an elastic scraping blade. The annular scraper fits against the inner wall of the water-cooling pipe 6, and the elastic scraping blade can adapt to minor deformations of the inner wall of the water-cooling pipe 6, ensuring thorough scraping. Connecting wires 10 are wound around both the first take-up roller 8 and the second take-up roller 9. One end of each connecting wire 10 passes through the water-cooling pipe 6 and the annular scraper. The scraper is fixedly connected, and a sealing ring is provided at the position where the connecting line 10 passes through the water cooling pipe 6 to ensure that there is no water leakage. At the same time, the connecting line 10 is made of corrosion-resistant stainless steel wire rope. The stainless steel wire rope is corrosion-resistant and has high strength, making it suitable for long-term underwater working environment. When the take-up roller 1 8 is winding, the take-up roller 2 9 is releasing; when the take-up roller 1 8 is releasing, the take-up roller 2 9 is winding. The rear ends of both the take-up roller 1 8 and the take-up roller 2 9 are fixedly connected to rotating rods, and sprockets 5 are fixedly installed on the outer surface of both rotating rods. The same chain 3 is meshed on the two sprockets 5.

[0021] Reference Figure 5 and Figure 7 The cleaning mechanism includes a groove 12 located on the left side inside the fixed plate 2 on the right side. A screw 13 is rotatably connected inside the groove 12. A movable plate 14 is threadedly connected to the screw 13. The movable plate 14 is slidably connected to the groove 12. A connecting block 15 is fixedly connected to the left side of the movable plate 14. A sweeping roller 16 is rotatably connected to the left side of the connecting block 15. A motor is fixedly installed on the rear side of the fixed plate 2 on the right side. The output shaft of the motor is fixedly connected to the rear end of the screw 13. The motor is a forward and reverse motor. By starting the motor, the output shaft of the motor drives the screw 13 to rotate, which causes the movable plate 14 to drive the connecting block 15 and the sweeping roller 16 to move back and forth, cleaning the bottom of the water cooling pipe 6 and the heat sink 5.

[0022] Reference Figure 5 The outer wall of the cleaning roller 16 is wrapped with high-temperature resistant elastic cleaning bristles. The bristles are in close contact with the outer surface of the water-cooling pipe 6 and the bottom of the heat sink 5. The elastic bristles of the cleaning roller 16 can avoid scratching the surface of the water-cooling pipe 6 and the heat sink 5, thus extending the service life of the equipment.

[0023] Reference Figures 5-7A rotating column 19 is fixedly connected to the front end of the screw 13. The rotating column 19 is rotatably connected to the groove 12. A sprocket 20 is fixedly installed on the outer surface of the rotating column 19. A rotating column 25 is fixedly connected to the right end of the cleaning roller 16. The rotating column 25 is rotatably set inside the connecting block 15. A bevel gear 26 is fixedly installed on the outer surface of the rotating column 25. A bevel gear 27 is meshed with the bevel gear 26. A telescopic rod 17 is fixedly installed at the front end of the bevel gear 27. The telescopic rod 17 is rotatably connected to the connecting block 15 and the housing 1. A sprocket 18 is fixedly installed on the outer surface of the telescopic rod 17. The telescopic rod 17 consists of two sections, which are slidably connected to each other. The section at the rear end is rotatably connected to the connecting block 15 and fixedly connected to the bevel gear 27. The section at the front end is rotatably connected to the inner wall of the housing 1 and fixedly connected to the sprocket 18. The same chain 21 is meshed on the sprocket 18 and the sprocket 20.

[0024] Reference Figure 5 and Figure 7 The power mechanism includes a sprocket 22 disposed on the outer surface of the rotating column 2 19, a rotating column 11 fixedly mounted at the front end of the take-up roller 8, the rotating column 11 being rotatably connected to the fixed plate 2, a sprocket 4 23 fixedly mounted on the outer surface of the rotating column 11, and the same chain 24 meshing with the sprocket 4 23 and the sprocket 3 22.

[0025] The implementation principle of a heat dissipation device for thermal power generation according to an embodiment of this application is as follows: the device is bolted to the heat dissipation area of ​​the thermal power generation equipment through the fixing plates 2 on both sides of the housing 1; the drawer 28 on the back side of the water tank 7 is opened, liquid nitrogen is added and then pushed back. The sealing gasket between the drawer 28 and the cavity ensures that the liquid nitrogen does not evaporate or leak. The heat conduction plate quickly transfers the cooling energy of the liquid nitrogen to the water in the water tank 7, so that the circulating water is pre-cooled to the set low temperature; the cooling fan 4 is started, a negative pressure is formed in the housing 1, and hot air enters through the opening of the housing 1 and is finally discharged from the top heat dissipation port 3, completing the basic heat dissipation cycle; Start the water pump in the water tank 7. The water pump will pump the pre-cooled low-temperature water into the water cooling pipe 6 under high pressure. The water flows along the pipe of the water cooling pipe 6. The water cooling pipe 6 is fixed to the bottom of the box 1 and is in contact with the heat dissipation surface of the thermal equipment. It quickly absorbs the heat of the equipment through the pipe wall. The heated water flows back to the water tank 7 from the output end of the water cooling pipe 6 and is cooled down again by liquid nitrogen. This forms a closed-loop water cooling system of heat absorption, cooling and circulation, which continuously removes the core heat of the equipment. When dust accumulates on the outer surface of the water-cooling pipe 6 or at the bottom of the heat sink 5, the forward and reverse motor on the rear side of the right-side fixed plate 2 is activated: the motor output shaft drives the screw 13 to rotate forward or reverse. Since the moving plate 14 is threadedly connected to the screw 13 and slides in the groove 12, the moving plate 14 moves horizontally back and forth along the groove 12, synchronously driving the connecting block 15 and the cleaning roller 16 to move back and forth. When the screw 13 rotates, the rotating column 19 at the front end rotates synchronously, and the sprocket 20 on its outer surface drives the sprocket 18 to rotate through the chain 21, thereby driving the telescopic rod 17 to rotate. The bevel gear 27 at the rear end of the telescopic rod 17 drives the meshing bevel gear 26 to rotate, and the bevel gear 26 drives the cleaning roller 16 to rotate at high speed through the rotating column 25. Under the combined action of reciprocating movement and rotation, the high-temperature resistant elastic bristles on the outer periphery of the cleaning roller 16 are tightly attached to the outer surface of the water-cooling pipe 6 and the bottom of the heat sink 5, thoroughly removing dust, lint and other impurities, and avoiding dust accumulation that affects heat transfer efficiency. When the rotating column 19 rotates, the sprocket 22 on its outer surface drives the sprocket 4 23 to rotate via the chain 24. The sprocket 4 23 drives the rotating column 11 and the take-up roller 8 to rotate. The rotating rod at the rear end of the take-up roller 8 drives the sprocket 5 to rotate, which drives the take-up roller 29 to rotate in the opposite direction synchronously via the chain 3. When the take-up roller 8 is winding, the take-up roller 29 is releasing. When the take-up roller 8 is releasing, the take-up roller 29 is winding. The stainless steel wire rope connecting line 10 on the take-up roller 8 and the take-up roller 9 simultaneously pulls the annular scraper inside the water-cooling pipe 6. The elastic scraping blade of the annular scraper is interference-fitted with the inner wall of the water-cooling pipe 6. Under the traction of the connecting line 10, it slides back and forth along the inner wall of the water-cooling pipe 6, thoroughly scraping away stubborn impurities such as scale and rust attached to the pipe wall. The scraped impurities flow back to the water tank 7 with the water flow and can be discharged through the drain port of the water tank 7, avoiding scale accumulation that would cause the diameter of the water-cooling pipe 6 to narrow and the heat dissipation efficiency to decrease.

[0026] Example 2 The difference between this embodiment and embodiment one is that a filter screen is installed inside the heat dissipation port 3 to prevent dust from entering the interior of the housing 1 when the equipment is idle. The filter screen is made of finely woven metal wires and has high filtration accuracy, which can effectively intercept dust particles.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heat dissipation device for thermal power generation, comprising a housing (1), characterized in that: The box (1) is fixedly installed with fixing plates (2) on both the left and right sides, and the top of the box (1) is provided with multiple heat dissipation vents (3). The box (1) is also provided with two cooling fans (4) on the top side inside, and includes: The heat sink (5) is fixedly installed inside the housing (1); Water-cooled pipe (6) is fixedly installed at the bottom of the box (1); Water tank (7) is fixedly installed on the rear side of the box body (1), and a water pump is fixedly installed inside the water tank (7). The output end of the water pump is fixedly connected to the input end of the water cooling pipe (6), and the output end of the water cooling pipe (6) is fixedly connected to the water tank (7). A cavity is provided on the rear side of the inside of the water tank (7), and a drawer (28) is slidably connected inside the cavity. A heat-conducting plate is provided inside the drawer (28). The scale removal mechanism is located inside the two fixed plates (2) and is used to remove scale inside the water cooling pipe (6) to improve the heat dissipation effect. The cleaning mechanism is located inside the fixed plate (2) on the right side and is used to clean the surface of the water cooling pipe (6) and the heat dissipation plate (5) to improve the heat dissipation effect. The power mechanism is located on the cleaning mechanism and connected to the scale removal mechanism to drive the scale removal mechanism.

2. The heat dissipation device for thermal power generation according to claim 1, characterized in that: The scale removal mechanism includes mounting grooves located inside two fixed plates (2) and close to each other on one side. A first winding roller (8) and a second winding roller (9) are rotatably connected in the two mounting grooves respectively. An annular scraper is slidably connected inside the water cooling pipe (6). A connecting line (10) is wound around the first winding roller (8) and the second winding roller (9). One end of each connecting line (10) passes through the water cooling pipe (6) and is fixedly connected to the annular scraper.

3. A heat dissipation device for thermal power generation according to claim 2, characterized in that: The rear ends of both take-up roller 1 (8) and take-up roller 2 (9) are fixedly connected to rotating rods, and sprockets 5 are fixedly installed on the outer surfaces of both rotating rods. The same chain 3 is meshed on both sprockets 5.

4. A heat dissipation device for thermal power generation according to claim 3, characterized in that: The cleaning mechanism includes a groove (12) on the left side of the fixed plate (2) located on the right side, a screw (13) is rotatably connected inside the groove (12), and a movable plate (14) is threaded onto the screw (13).

5. A heat dissipation device for thermal power generation according to claim 4, characterized in that: The movable plate (14) is slidably connected to the groove (12). A connecting block (15) is fixedly connected to the left side of the movable plate (14). A cleaning roller (16) is rotatably connected to the left side of the connecting block (15). A motor is fixedly installed on the rear side of the fixed plate (2) on the right side. The output shaft of the motor is fixedly connected to the rear end of the screw (13).

6. A heat dissipation device for thermal power generation according to claim 5, characterized in that: The front end of the screw (13) is fixedly connected to a rotating column two (19), the rotating column two (19) is rotatably connected to the groove (12), the outer surface of the rotating column two (19) is fixedly installed with a sprocket two (20), the right end of the cleaning roller (16) is fixedly connected to a rotating column three (25), and the rotating column three (25) is rotatably set inside the connecting block (15).

7. A heat dissipation device for thermal power generation according to claim 6, characterized in that: A bevel gear 1 (26) is fixedly installed on the outer surface of the rotating column 3 (25). The bevel gear 1 (26) is meshed with a bevel gear 2 (27). A telescopic rod (17) is fixedly installed at the front end of the bevel gear 2 (27). The telescopic rod (17) is rotatably connected to the connecting block (15) and the box (1). A sprocket 1 (18) is fixedly installed on the outer surface of the telescopic rod (17). The same chain 1 (21) is meshed with the sprocket 1 (18) and the sprocket 2 (20).

8. A heat dissipation device for thermal power generation according to claim 6, characterized in that: The power mechanism includes a sprocket three (22) disposed on the outer surface of the rotating column two (19), a rotating column one (11) fixedly installed at the front end of the winding roller one (8), the rotating column one (11) being rotatably connected to the fixed plate (2), a sprocket four (23) fixedly installed on the outer surface of the rotating column one (11), and the same chain two (24) meshing with the sprocket four (23) and the sprocket three (22).

Images