Heat energy utilization equipment for electric power heat energy power engineering

Abstract

The utility model discloses heat energy utilization equipment for electric power heat energy power engineering, which relates to the field of heat energy utilization equipment and comprises a water tank and a filter tank. And the cleaning assembly comprises a rotating shaft arranged in the filter box through a sealing bearing, a rotating shaft and a material guide plate mounted in the filter box. Through the arrangement of the cleaning assembly, after high-temperature flue gas continuously enters the filter box through the gas inlet pipe, fan blades are impacted by the high-temperature flue gas to rotate, the fan blades drive a rotating shaft to rotate, drive a driving belt wheel to rotate, drive a driven belt wheel to rotate through a belt, then drive the rotating shaft to rotate, and then drive a scraping piece to rotate; through the arrangement of the scraper, impurities attached to the filter screen can be continuously scraped off by the scraper, so that the cleanliness of the filter surface of the filter screen is improved, the smoke filtering effect of the filter screen is improved, workers do not need to manually clean the filter screen at set intervals, and meanwhile, the cleaning process is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the field of heat energy utilization equipment, in particular to heat energy utilization equipment for electric power thermal energy power engineering. Background Art

[0002] A power plant refers to a power plant that converts some form of raw energy into electrical energy for fixed facilities or transportation, such as thermal, hydro, steam, diesel or nuclear power plants. During the power generation process of a thermal power plant, a large amount of high-temperature flue gas is generated. If the high-temperature flue gas is directly discharged after filtering and purification, the high-temperature heat in the flue gas cannot be recovered and utilized, which will cause waste. Therefore, heat recovery equipment will be set up to recover and utilize the heat in the high-temperature flue gas.

[0003] According to a Chinese patent with publication number CN218645597U, a thermal energy recovery and utilization device for a thermal power plant is disclosed. The utility model cleans the filter plate to prevent dust from clogging the filter plate and causing poor filtration efficiency. Under the action of a heat transmission pipe, tap water in a heat recovery box is heated to recover the heat energy in the flue gas.

[0004] In view of the above-mentioned disclosed patent content, a filter plate is provided to filter the incoming flue gas, and a cleaning component is provided to clean the dust impurities attached to the filter plate. However, when cleaning, it is necessary to manually rotate the threaded rod through a turntable to move the threaded seat sleeved on the outer wall of the threaded rod, and then drive the cleaning brush to move to achieve the purpose of cleaning the filter plate. Since there are many dust impurities in the flue gas, the dust impurities attached to the bottom of the filter plate need to be scraped and cleaned after filtering for a period of time, thereby increasing the workload of the staff. If the staff forgets to clean the filter plate, the filter plate will be blocked, thereby affecting the subsequent filtering effect of the flue gas, and then reducing the cleaning efficiency of the filter plate. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a heat energy utilization device for electric power thermal power engineering to solve the technical problem of inconvenience in continuously scraping and cleaning the dust impurities attached to the filter surface of the filter plate.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat energy utilization device for electric power thermal power engineering, comprising a water tank and a filter box, a cleaning assembly is arranged inside the filter box, and the cleaning assembly comprises a rotating shaft and a rotating shaft arranged inside the filter box through a sealed bearing and a guide plate installed inside the filter box, a fan blade is installed on the outer wall of the rotating shaft, one end of the rotating shaft extends to the outside of the filter box and is connected to a driving pulley, a scraper is arranged at the bottom of the rotating shaft, one end of the rotating shaft extends to the outside of the filter box and is connected to a driven pulley, and a belt is sleeved between the driven pulley and the driving pulley, a scraping assembly is arranged inside the water tank, and the scraping assembly comprises a screw rod arranged inside the water tank through a bearing, a frame is sleeved on the outer wall of the screw rod, and a scraper frame is installed at the bottom of the frame through a connecting rod.

[0007] By adopting the above technical solution, when the fan blades drive the rotating shaft to rotate, the rotating shaft will drive the driving pulley to rotate, and then drive the driven pulley to rotate through the belt.

[0008] Furthermore, a plurality of fixing rods are arranged inside the frame, and a cleaning sleeve is installed between every two fixing rods.

[0009] By adopting the above technical solution, when the frame moves, it will drive the fixing rod to move, and the fixing rod will drive the cleaning sleeve to move, so that the cleaning sleeve can scrape off impurities attached to the surface of the heat exchange tube.

[0010] Furthermore, the outer walls of the scraper frame and the frame body are both in contact with the inner wall of the water tank, and the frame body is threadedly connected to the screw rod.

[0011] By adopting the above technical solution, when the screw rod rotates, it drives the frame to move, and the frame can drive the scraper frame to move.

[0012] Furthermore, the scraping assembly also includes a sealing sleeve arranged on the top of the water tank, and the outer wall of the screw rod is in contact with the inner wall of the sealing sleeve.

[0013] By adopting the above technical solution, the provision of the sealing sleeve can improve the sealing performance of the water tank and prevent water vapor from being discharged through the gap between the screw rod and the water tank.

[0014] Furthermore, a heat exchange tube is installed inside the water tank, the air inlet end of the heat exchange tube is connected to an air guide tube extending to the inside of the filter box, and the air outlet end of the heat exchange tube is connected to an air outlet pipe extending to the outside of the water tank.

[0015] By adopting the above technical solution, high-temperature flue gas can enter the interior of the heat exchange tube through the air duct, and the high-temperature flue gas can heat the water inside the water tank when flowing inside the heat exchange tube.

[0016] Furthermore, a water inlet pipe is connected to one side of the top of the water tank, and a sealing cover is threadedly connected to the top of the water inlet pipe.

[0017] By adopting the above technical solution, when water needs to be added into the water tank, the staff can rotate the sealing cover, unscrew the sealing cover from the water inlet pipe, and then add water into the water tank through the water inlet pipe.

[0018] Furthermore, mounting plates are fixed on both sides of the interior of the filter box, and a filter screen is connected between the two mounting plates.

[0019] By adopting the above technical solution, the filter can filter impurities in the flue gas to prevent the flue gas from carrying impurities into the heat exchange tube.

[0020] Furthermore, an air intake pipe is installed on the back of the filter box, and the fan blades correspond to the air intake pipe.

[0021] By adopting the above technical solution, high-temperature flue gas can enter the filter box through the air inlet pipe. As the high-temperature flue gas continues to enter, the fan blades will rotate due to the impact of the high-temperature flue gas.

[0022] Furthermore, the cleaning assembly also includes a material collecting plate inserted in the lower part of the filter box, a sealing plate is installed on the outer surface of the material collecting plate, and the sealing plate is detachably connected to the filter box by bolts.

[0023] By adopting the above technical solution, when it is necessary to clean the impurities on the aggregate plate, the staff can turn the bolts to unscrew them, and then the staff can pull the sealing plate to remove the aggregate plate from the inside of the filter box.

[0024] Furthermore, the material guide plate is located directly below the filter screen, one side of the material guide plate is inclined downward in the direction of the water tank, and the top of the material guide plate is smooth.

[0025] By adopting the above technical solution, the scraped impurities can fall onto the material guide plate, slide on the material guide plate and fall onto the collecting plate.

[0026] In summary, the utility model mainly has the following beneficial effects:

[0027] 1. The utility model is provided with a cleaning component. When the high-temperature flue gas continuously enters the filter box through the air intake pipe, the fan blades will rotate due to the impact of the high-temperature flue gas, and the fan blades will drive the rotating shaft to rotate, and drive the driving pulley to rotate, and then drive the driven pulley to rotate through the belt, and then drive the rotating shaft to rotate, and then drive the scraper to rotate, so that the scraper can continuously scrape off the impurities attached to the filter screen, thereby improving the cleanliness of the filter surface of the filter screen and improving the filtering effect of the filter screen on the flue gas. In this way, as long as the flue gas continues to enter the filter box, the scraper will continue to rotate and scrape and clean the filter screen, without the need for the staff to manually clean the filter screen every once in a while, and the cleaning process is simple and convenient, and reduces the workload of the staff, while improving the cleaning efficiency of the filter screen;

[0028] 2. The utility model is provided with a scraping component. When it is necessary to scrape and clean the scale attached to the inner wall of the water tank, the staff can rotate the screw through the turntable. After the screw is rotated, it will drive the frame to move downward, and then drive the scraper frame to move downward. The scraper frame will scrape the scale attached to the inner wall of the water tank, thereby improving the cleaning efficiency of the inner wall of the water tank. At the same time, the frame will drive the cleaning sleeve to move, so that the cleaning sleeve can scrape off impurities attached to the surface of the heat exchange tube, improve the cleanliness of the surface of the heat exchange tube, and improve the heating efficiency of the high-temperature flue gas flowing in the heat exchange tube to the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0030] Figure 2 It is a schematic diagram of the overall front section structure of the utility model;

[0031] Figure 3 This is a schematic diagram of the front cross-section structure of the water tank of the utility model;

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the filter box of the utility model in side section;

[0033] Figure 5 This is a schematic diagram of the three-dimensional structure of the filter screen of the utility model;

[0034] Figure 6 It is a bottom-up three-dimensional structural schematic diagram of the frame of the utility model.

[0035] In the figure: 1. water tank; 2. water inlet pipe; 3. sealing cover; 4. heat exchange tube; 5. drain pipe; 6. air guide pipe; 7. air outlet pipe; 8. cleaning assembly; 801. rotating shaft; 802. scraper; 803. driven pulley; 804. belt; 805. guide plate; 806. rotating shaft; 807. fan blade; 808. driving pulley; 809. collecting plate; 810. sealing plate; 9. scraping assembly; 901. screw rod; 902. turntable; 903. frame; 904. connecting rod; 905. scraper frame; 906. cleaning sleeve; 907. fixing rod; 908. sealing sleeve; 10. filter screen; 11. mounting plate; 12. air inlet pipe; 13. filter box. DETAILED DESCRIPTION

[0036] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0037] The following describes an embodiment of the utility model based on its overall structure.

[0038] Embodiment 1:

[0039] A heat energy utilization device for electric power thermal power engineering, such as Figure 1-Figure 6 As shown, it includes a water tank 1 and a filter box 13, a cleaning component 8 is provided inside the filter box 13, a scraping component 9 is provided inside the water tank 1, a heat exchange pipe 4 is installed inside the water tank 1, the air inlet end of the heat exchange pipe 4 is connected with an air guide pipe 6 extending to the inside of the filter box 13, and the air outlet end of the heat exchange pipe 4 is connected with an air outlet pipe 7 extending to the outside of the water tank 1. The high-temperature flue gas can enter the heat exchange pipe 4 through the air guide pipe 6, and the high-temperature flue gas can heat the water inside the water tank 1 when flowing inside the heat exchange pipe 4. A water inlet pipe 2 is connected to one side of the top of the water tank 1, and a sealing cover 3 is threadedly connected to the top of the water inlet pipe 2. When water needs to be added to the inside of the water tank 1, the staff can rotate the sealing cover 3 and unscrew the sealing cover 3 from the water inlet pipe 2, and then water can be added to the inside of the water tank 1 through the water inlet pipe 2. After the addition is completed, the sealing cover 3 is screwed on the water inlet pipe 2 to seal the water inlet pipe 2 to prevent hot air from being discharged through the water inlet pipe 2.

[0040] See also Figure 1-Figure 5Mounting plates 11 are fixed on both sides of the inside of the filter box 13, and a filter screen 10 is connected between the two mounting plates 11. The filter screen 10 can filter impurities in the flue gas to prevent the flue gas from carrying impurities into the heat exchange tube 4. An air intake pipe 12 is installed on the back of the filter box 13 so that the high-temperature flue gas can enter the filter box 13 through the air intake pipe 12. A drain pipe 5 is connected to the lower side of the water tank 1, and a drain valve is installed on the drain pipe 5. When the heated water needs to be discharged, the staff can open the drain valve to discharge the hot water from the drain pipe 5.

[0041] See also Figure 2 , Figure 3 and Figure 6 The cleaning assembly 8 includes a rotating shaft 801 and a rotating shaft 806 arranged inside the filter box 13 through a sealed bearing and a guide plate 805 installed inside the filter box 13. The outer wall of the rotating shaft 806 is installed with a fan blade 807, and the fan blade 807 corresponds to the air inlet pipe 12. As the high-temperature flue gas continues to enter, the fan blade 807 is impacted by the high-temperature flue gas and rotates, and the fan blade 807 drives the rotating shaft 806 to rotate, and the rotating shaft 806 drives the driving pulley 808 to rotate, and then drives the driven pulley 803 to rotate through the belt 804. One end of the rotating shaft 806 extends to the outside of the filter box 13 and is connected to the driving pulley 808. The bottom of the rotating shaft 801 is provided with a scraper 8 02, the scraper 802 makes a circular motion around the rotating shaft 801, so that the rotating shaft 801 can drive the scraper 802 to rotate, so that the scraper 802 can scrape off the impurities attached to the filter screen 10, one end of the rotating shaft 801 extends to the outside of the filter box 13 and is connected to a driven pulley 803, and a belt 804 is sleeved between the driven pulley 803 and the driving pulley 808, the guide plate 805 is located directly below the filter screen 10, one side of the guide plate 805 is inclined downward along the direction of the water tank 1, and the top of the guide plate 805 is smooth, so that the scraped impurities can fall onto the guide plate 805, and the impurities slide on the guide plate 805 and fall onto the collecting plate 809.

[0042] See also Figure 2 , Figure 3 and Figure 6 The scraping assembly 9 includes a screw rod 901 arranged inside the water tank 1 through a bearing, the outer wall of the screw rod 901 is sleeved with a frame 903, and a scraper frame 905 is installed at the bottom of the frame 903 through a connecting rod 904, the outer walls of the scraper frame 905 and the frame 903 are both in contact with the inner wall of the water tank 1, the frame 903 is threadedly connected to the screw rod 901, when the screw rod 901 rotates, it will drive the frame 903 to move, and the frame 903 can drive the scraper frame 905 to move, the top end of the screw rod 901 extends to the outside of the water tank 1 and is connected to a turntable 902, which is convenient for the staff to rotate the screw rod 901 through the turntable 902.

[0043] Embodiment 2:

[0044] On the basis of the above-mentioned embodiment 1, since the heat exchange tube 4 is immersed in water for a long time, impurities and scale may be attached to the heat exchange tube 4. In order to avoid affecting the heating effect of the heat exchange tube 4, the surface of the heat exchange tube 4 needs to be cleaned, so the following structure is set.

[0045] Specifically, a plurality of fixed rods 907 are provided inside the frame 903, and a cleaning sleeve 906 is installed between every two fixed rods 907. The cleaning sleeve 906 is sleeved on the outer wall of the heat exchange tube 4. When the frame 903 moves, it will drive the fixed rods 907 to move, and the fixed rods 907 will drive the cleaning sleeve 906 to move, so that the cleaning sleeve 906 can scrape off impurities attached to the surface of the heat exchange tube 4.

[0046] Embodiment three:

[0047] On the basis of the above-mentioned embodiment 1, in order to improve the sealing between the screw rod 901 and the water tank 1 and prevent water vapor from being discharged through the gap between the screw rod 901 and the water tank 1, the following structure is provided.

[0048] Specifically, the scraping assembly 9 also includes a sealing sleeve 908 arranged on the top of the water tank 1. The outer wall of the screw rod 901 is in contact with the inner wall of the sealing sleeve 908. The setting of the sealing sleeve 908 can improve the sealing performance of the water tank 1 and prevent water vapor from being discharged through the gap between the screw rod 901 and the water tank 1.

[0049] Embodiment 4:

[0050] On the basis of the above-mentioned first embodiment, after the impurities attached to the filter screen 10 are scraped off by the scraper 802, the impurities will fall to the lower part of the filter box 13. In order to facilitate the cleaning of the fallen impurities, the following structure will be provided.

[0051] Specifically, the cleaning component 8 also includes a collection plate 809 inserted at the bottom of the interior of the filter box 13. A sealing plate 810 is installed on the outer surface of the collection plate 809, and the sealing plate 810 is detachably connected to the filter box 13 by bolts. When it is necessary to clean the impurities on the collection plate 809, the staff can turn the bolts to unscrew the bolts, and then the staff can pull the sealing plate 810 to move the collection plate 809 out of the interior of the filter box 13, thereby facilitating the staff to clean the impurities accumulated on the collection plate 809.

[0052] The working principle of the utility model is as follows: first, the staff can install the heat energy utilization device, rotate the sealing cover 3 after installation, unscrew the sealing cover 3 from the water inlet pipe 2, and then add water into the water tank 1 through the water inlet pipe 2. After the addition is completed, the sealing cover 3 is screwed onto the water inlet pipe 2 to seal the water inlet pipe 2, and the high-temperature flue gas can enter the filter box 13 through the air inlet pipe 12;

[0053] When the high-temperature flue gas continuously enters the filter box 13 through the air intake pipe 12, the fan blade 807 will rotate due to the impact of the high-temperature flue gas, and the fan blade 807 will drive the rotating shaft 806 to rotate, and drive the driving pulley 808 to rotate, and then drive the driven pulley 803 to rotate through the belt 804, and then drive the rotating shaft 801 to rotate, and then drive the scraper 802 to rotate, so that the scraper 802 can continuously scrape off the impurities attached to the filter screen 10, and the impurities fall to the top of the guide plate 805 and slide onto the collecting plate 809. After the flue gas is filtered by the filter screen 10, it will enter the heat exchange tube 4 through the air guide pipe 6. As the high-temperature flue gas flows in the heat exchange tube 4, the water in the water tank 1 can be heated, so as to achieve the purpose of recycling the heat of the flue gas;

[0054] If it is necessary to scrape and clean the scale attached to the inner wall of the water tank 1, the staff can rotate the screw rod 901 through the turntable 902. After the screw rod 901 rotates, it will drive the frame 903 to move downward, and then drive the scraper frame 905 to move downward. The scraper frame 905 will scrape the scale attached to the inner wall of the water tank 1. At the same time, the frame 903 will drive the cleaning sleeve 906 to move, so that the cleaning sleeve 906 can scrape off the impurities attached to the surface of the heat exchange tube 4, and then add water to the inside of the water tank 1 through the water inlet pipe 2, and open the drain valve to allow water, scale and impurities to be discharged through the drain pipe 5, thereby achieving the purpose of cleaning the inside of the water tank 1.

[0055] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A heat energy utilization device for electric power thermal power engineering, comprising a water tank (1) and a filter box (13), characterized in that: A cleaning assembly (8) is provided inside the filter box (13), and the cleaning assembly (8) comprises a rotating shaft (801) and a rotating shaft (806) provided inside the filter box (13) via a sealed bearing, and a material guide plate (805) installed inside the filter box (13); a fan blade (807) is installed on the outer wall of the rotating shaft (806); one end of the rotating shaft (806) extends to the outside of the filter box (13) and is connected to a driving pulley (808); a scraper (802) is provided at the bottom of the rotating shaft (801); One end of the rotating shaft (801) extends to the outside of the filter box (13) and is connected to a driven pulley (803), and a belt (804) is sleeved between the driven pulley (803) and the driving pulley (808). A scraping assembly (9) is provided inside the water tank (1), and the scraping assembly (9) includes a screw rod (901) arranged inside the water tank (1) through a bearing, the outer wall of the screw rod (901) is sleeved with a frame (903), and a scraping frame (905) is installed at the bottom of the frame (903) through a connecting rod (904).

2. The heat energy utilization equipment for electric power thermal power engineering according to claim 1, characterized in that: A plurality of fixing rods (907) are arranged inside the frame (903), and a cleaning sleeve (906) is installed between every two fixing rods (907).

3. The heat energy utilization equipment for electric power thermal power engineering according to claim 1, characterized in that: The outer walls of the scraper frame (905) and the frame body (903) are both in contact with the inner wall of the water tank (1), and the frame body (903) is threadedly connected to the screw rod (901).

4. The heat energy utilization equipment for electric power thermal power engineering according to claim 1, characterized in that: The scraping assembly (9) further comprises a sealing sleeve (908) arranged on the top of the water tank (1), and the outer wall of the screw rod (901) is in contact with the inner wall of the sealing sleeve (908).

5. The heat energy utilization equipment for electric power thermal power engineering according to claim 1, characterized in that: A heat exchange tube (4) is installed inside the water tank (1); the air inlet end of the heat exchange tube (4) is connected to an air guide tube (6) extending to the inside of the filter box (13); and the air outlet end of the heat exchange tube (4) is connected to an air outlet pipe (7) extending to the outside of the water tank (1).

6. The thermal energy utilization equipment for electric power thermal power engineering according to claim 1, characterized in that: A water inlet pipe (2) is connected to one side of the top of the water tank (1), and a sealing cover (3) is threadedly connected to the top of the water inlet pipe (2).

7. The thermal energy utilization equipment for electric power thermal power engineering according to claim 1, characterized in that: Mounting plates (11) are fixed on both sides of the interior of the filter box (13), and a filter screen (10) is connected between the two mounting plates (11).

8. The heat energy utilization equipment for electric power thermal power engineering according to claim 1, characterized in that: An air intake pipe (12) is installed at the back of the filter box (13), and the fan blades (807) correspond to the air intake pipe (12).

9. The heat energy utilization equipment for electric power thermal power engineering according to claim 1, characterized in that: The cleaning assembly (8) further comprises a material collecting plate (809) inserted into the lower part of the interior of the filter box (13); a sealing plate (810) is installed on the outer surface of the material collecting plate (809), and the sealing plate (810) is detachably connected to the filter box (13) via bolts.

10. The thermal energy utilization equipment for electric power thermal power engineering according to claim 1, characterized in that: The material guide plate (805) is located directly below the filter screen (10), one side of the material guide plate (805) is tilted downward in the direction of the water tank (1), and the top of the material guide plate (805) is smooth.

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