Water-cooling conveying system and equipment for leaked ash at furnace bottom of power plant

Abstract

The utility model discloses a power plant furnace bottom leaked ash water-cooling conveying system and equipment, and relates to the technical field of electric power engineering, the power plant furnace bottom leaked ash water-cooling conveying system comprises a furnace ash conveying pipe and a water flow conveying pipe, one side of the furnace ash conveying pipe is provided with an accelerated ash suction assembly, and the accelerated ash suction assembly comprises an arc-shaped water tank arranged on one side of the water flow conveying pipe; a gas conveying pipe is connected to the top of the arc-shaped water tank in an inserted mode, two rotating shafts are arranged in the stove ash conveying pipe, and a plurality of fan blades are installed on the outer walls of the rotating shafts; water vapor formed by heating water in the arc-shaped water tank is blown to the rotating shafts and the fan blades through the air conveying pipe to enable the fan blades to rotate, when one rotating shaft rotates, the other rotating shaft and the fan blades are driven to rotate through the rotating rod, and the fan blades rotate to form suction force to enable high-temperature furnace bottom ash to quickly move in the furnace ash conveying pipe; the situation that the local part of the stove ash conveying pipe is heated too high due to high-temperature ash can be effectively avoided, and the temperature of the ash is lowered faster due to rapid movement of the ash.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power engineering, in particular to a water-cooled conveying system and equipment for ash leakage from the bottom of a furnace in a power plant. Background Art

[0002] In waste incineration power generation systems or other types of power plants, the ash produced at the bottom of the furnace is usually at a high temperature. Direct treatment is not only inefficient but may also cause damage to the equipment.

[0003] During the operation of the water-cooled conveying system and equipment for the bottom ash leakage of power plants, when the high-temperature bottom ash initially contacts the conveying device of the water-cooling equipment, the temperature of this area rises significantly due to the local heat concentration at the contact point and the relatively slow conveying speed. As the ash gradually moves along the conveying equipment, its temperature gradually decreases. Therefore, the water-cooled conveying equipment will have a local high temperature phenomenon in the area where the ash initially falls, which may have a certain impact on the stable operation of the equipment. Utility Model Content

[0004] The utility model aims to provide a water-cooled conveying system and equipment for ash leakage from the bottom of a power plant furnace, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides a water-cooled ash conveying equipment for the ash leakage from the bottom of a power plant, comprising an ash conveying pipe and a water flow transmission pipe, an accelerated ash suction component is arranged on one side of the ash conveying pipe, the accelerated ash suction component comprises an arc-shaped water tank arranged on one side of the water flow transmission pipe, an air pipe is inserted into the top of the arc-shaped water tank, two rotating shafts are arranged inside the ash conveying pipe, a plurality of fan blades are installed on the outer wall of the rotating shaft, and a rotating rod is connected between the two rotating shafts.

[0006] Furthermore, a support rod is rotatably connected to the bottom end of one of the rotating shafts, the bottom end of the support rod is connected to the inner wall of the ash conveying pipe, and a conical block is installed on the top of the rotating shaft.

[0007] Furthermore, an air guide plate is installed at one end of the gas pipe extending to the inside of the ash conveying pipe, a heat conducting plate is installed on the top of the arc water tank, the gas pipe is plugged into the heat conducting plate, and a fixing frame is installed at the bottom of the arc water tank.

[0008] Furthermore, the water flow transmission pipe is rotatably connected to a mounting rod, the outer walls of the rotating rod and the mounting rod are both installed with pulleys, a transmission belt is connected between the two pulleys, a circular mounting plate is installed on the outer wall of the mounting rod, and a plurality of fan blades are installed on the outer wall of the circular mounting plate.

[0009] Furthermore, two sealing pads are installed on the outer wall of the mounting rod, and the sealing pads are located at the connection between the mounting rod and the water flow transmission pipe. The ash conveying pipe has two through grooves, and the inner wall of the through groove is installed with a scraper, and the transmission belt is slidably connected to the scraper.

[0010] Furthermore, a semicircular connecting pipe is installed between the two water transmission pipes, the semicircular connecting pipe is connected to the water transmission pipe, the ash conveying pipe is located between the water transmission pipe and the semicircular connecting pipe, and the semicircular connecting pipe is located on the side away from the transmission belt.

[0011] A water-cooled conveying system for ash leakage from the bottom of a power plant, characterized in that it comprises a steam driving module, a conveying module and a linkage module;

[0012] Water vapor module: heats water to form water vapor;

[0013] Conveying module: The steam generated by the steam module is used to start and form suction, so that the high-temperature bottom ash moves quickly in the ash conveying pipe;

[0014] Linkage module: Starts synchronously with the delivery module to stir the water in the water transmission pipe to increase the fluidity of the water.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, water vapor formed by the heated water in the arc-shaped water tank is blown onto the rotating shaft and the fan blades through the air pipe to rotate the fan blades. When one of the rotating shafts rotates, the other rotating shaft and the fan blades are driven to rotate through the rotating rod. The rotation of the fan blades forms suction to make the high-temperature bottom ash move quickly in the ash conveying pipe, which can effectively prevent the high-temperature ash from causing the local area of ​​the ash conveying pipe to be overheated, and the rapid movement of the ash also makes the temperature of the ash drop faster.

[0017] 2. In the utility model, the rotating rod drives the installation rod to rotate through the transmission belt. After the installation rod rotates, it will drive the circular installation plate and the fan blades to rotate. The rotation of the fan blades will stir the water in the water flow transmission pipe and increase the fluidity of the water, which helps to transfer heat from the ash conveying pipe to the water in the water flow transmission pipe more effectively. The flowing water can take away the heat more evenly, thereby improving the cooling effect of the water flow transmission pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the external three-dimensional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 It is a system flow chart of the utility model;

[0022] Figure 4 for Figure 2 A magnified view of the structure at center A;

[0023] Figure 5 for Figure 2 A magnified view of the structure at B in the middle;

[0024] Figure 6 for Figure 4 Enlarged view of the structure at C in the middle.

[0025] In the figure: 1. ash conveying pipe;

[0026] 2. Accelerated dust absorption component; 201. Arc-shaped water tank; 202. Air pipe; 203. Rotating shaft; 204. Fan blades; 205. Rotating rod;

[0027] Water flow transmission pipe; 4. Semicircular connecting pipe; 5. Heat conducting plate; 6. Fixing frame; 7. Air guide plate; 8. Conical block; 9. Support rod; 10. Pulley; 11. Transmission belt; 12. Through groove; 13. Scraper; 14. Mounting rod; 15. Sealing pad; 16. Ash collecting funnel; 17. Round mounting plate; 18. Fan blade. DETAILED DESCRIPTION

[0028] 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.

[0029] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0030] Embodiment 1:

[0031] See also Figure 1-Figure 4A water-cooled ash conveying device for the bottom of a power plant furnace comprises an ash conveying pipe 1 and a water flow conveying pipe 3. The ash conveying pipe 1 is located inside the water flow conveying pipe 3. Two water flow conveying pipes 3 are provided. The water flow conveying pipe 3 is plugged with a plurality of ash collecting funnels 16. The bottom ends of the ash collecting funnels 16 extend to the inside of the ash conveying pipe 1. The ash collecting funnels 16 are connected to the inside of the ash conveying pipe 1. An ash-accelerating ash-absorbing component 2 is provided on one side of the ash conveying pipe 1. The ash-accelerating ash-absorbing component 2 comprises an arc-shaped water tank 201 provided on one side of the water flow conveying pipe 3. The top of the arc-shaped water tank 201 is plugged with a The gas pipe 202, one end of the gas pipe 202 away from the arc water tank 201 extends to the interior of the ash conveying pipe 1, the gas pipe 202 is plugged into the ash conveying pipe 1, and two rotating shafts 203 are arranged inside the ash conveying pipe 1. One end of the gas pipe 202 located inside the ash conveying pipe 1 is located between the two rotating shafts 203, and a plurality of fan blades 204 are fixedly installed on the outer wall of the rotating shaft 203. One end of the gas pipe 202 located inside the ash conveying pipe 1 corresponds to one of the rotating shafts 203 and the fan blades 204, and a rotating rod 205 is fixedly connected between the two rotating shafts 203.

[0032] Since the temperature at the bottom of the boiler is relatively high, an arc-shaped water tank 201 is arranged near the bottom of the boiler. When the water in the arc-shaped water tank 201 is heated, water vapor is generated. The water vapor is transmitted to the inside of the ash conveying pipe 1 through the gas pipe 202 and then blown onto one of the rotating shafts 203 and the fan blades 204. The gas emitted by the water vapor drives the multiple fan blades 204 and the rotating shaft 203 to rotate.

[0033] When the rotating shaft 203 rotates, the rotating rod 205 drives another rotating shaft 203 and a plurality of fan blades 204 to rotate. The rotating fan blades 204 generate suction in the ash conveying pipe 1, so that the bottom ash falls into the ash conveying pipe 1 through the ash collecting funnel 16 and can be quickly sucked to the vicinity of the fan blades 204. Then, the ash will pass over the fan blades 204 and fall into the ash conveying pipe 1 below, so that the ash conveying pipe 1 can conveniently transport the ash to other places.

[0034] The ash absorption makes the ash move faster in the ash conveying pipe 1, which can effectively prevent the high-temperature ash from causing local overheating of the ash conveying pipe 1, and the rapid movement of the ash also makes the ash temperature drop faster. The water flow transmission pipe 3 is filled with cold water for cooling the ash conveying pipe 1 and the ash in the ash conveying pipe 1.

[0035] See also Figure 2 and Figure 4 The bottom end of one of the rotating shafts 203 is rotatably connected to a support rod 9, the bottom end of the support rod 9 is fixedly connected to the inner wall of the ash conveying pipe 1, and a conical block 8 is fixedly installed on the top of the rotating shaft 203.

[0036] The support rod 9 allows the rotating shaft 203 to rotate along the support rod 9 while supporting the rotating shaft 203, making the rotating shaft 203 and the fan blades 204 more stable during rotation. Since the top of the conical block 8 is pointed, dust can be prevented from accumulating on the top of the conical block 8.

[0037] See also Figure 1-Figure 4 An air guide plate 7 is fixedly installed at one end of the air supply pipe 202 extending to the inside of the ash conveying pipe 1, and the air guide plate 7 corresponds to one of the rotating shafts 203 and a plurality of fan blades 204. A heat conducting plate 5 is fixedly installed on the top of the arc water tank 201, and the air supply pipe 202 is plugged into the heat conducting plate 5. A fixing frame 6 is fixedly installed at the bottom of the arc water tank 201, and the bottom of the fixing frame 6 is in contact with the ground.

[0038] The air guide plate 7 allows the steam in the gas pipe 202 to be blown onto the multiple fan blades 204. The heat conductive sheet 5 has a heat conductive function, so that the heat at the bottom of the boiler can be better transferred to the water in the arc water tank 201 to ensure sufficient steam. The fixing frame 6 supports and fixes the arc water tank 201 and the heat conductive sheet 5.

[0039] Embodiment 2:

[0040] See also Figure 2-Figure 5 The water flow transmission pipe 3 is rotatably connected to the mounting rod 14, and pulleys 10 are fixedly installed on the outer walls of the rotating rod 205 and the mounting rod 14. A transmission belt 11 is connected between the two pulleys 10. A circular mounting plate 17 is fixedly installed on the outer wall of the mounting rod 14. The circular mounting plate 17 is located inside the water flow transmission pipe 3, and a plurality of fan blades 18 are fixedly installed on the outer wall of the circular mounting plate 17.

[0041] The rotating rod 205 rotates together with the pulley 10, and the pulley 10 drives another pulley 10 and the mounting rod 14 through the transmission belt 11. When the mounting rod 14 rotates, it will drive the circular mounting plate 17 and the fan blade 18 to rotate. The rotation of the fan blade 18 will stir the water in the water flow transmission pipe 3. By stirring the water, the fan blade 18 can increase the fluidity of the water, which helps to more effectively transfer heat from the ash conveying pipe 1 to the water in the water flow transmission pipe 3. The flowing water can take away the heat more evenly, thereby improving the cooling effect of the water flow transmission pipe 3.

[0042] See also Figure 5 Two sealing pads 15 are fixedly installed on the outer wall of the mounting rod 14. The sealing pads 15 are located at the connection between the mounting rod 14 and the water flow transmission pipe 3. One of the sealing pads 15 fits with the outer wall of the water flow transmission pipe 3, and the other sealing pad 15 fits with the inner wall of the water flow transmission pipe 3. The ash conveying pipe 1 is provided with two through grooves 12. A scraper 13 is fixedly installed on the inner wall of the through groove 12. The transmission belt 11 is slidably connected to the scraper 13.

[0043] The sealing gasket 15 is used to seal the connection between the water flow transmission pipe 3 and the mounting rod 14 to prevent water leakage in the water flow transmission pipe 3. The through groove 12 provides a space for the transmission belt 11 to extend out of the ash conveying pipe 1 without affecting the transmission function of the transmission belt 11. The scraper 13 can scrape off the ash attached to the outer wall of the transmission belt 11 before the transmission belt 11 is rotated out of the ash conveying pipe 1 to prevent the transmission belt 11 from bringing the bottom ash in the ash conveying pipe 1 out of the ash conveying pipe 1.

[0044] See also Figure 1-Figure 2 A semicircular connecting pipe 4 is fixedly installed between the two water transmission pipes 3, the semicircular connecting pipe 4 is connected to the water transmission pipe 3, the ash conveying pipe 1 is located between the water transmission pipe 3 and the semicircular connecting pipe 4, and the semicircular connecting pipe 4 is located on the side away from the transmission belt 11.

[0045] The semicircular connecting pipe 4 is connected to the two water flow transmission pipes 3, so it will not affect the circulation of water in the water flow transmission pipe 3. The semicircular connecting pipe 4 is located on the side away from the transmission belt 11 to prevent the semicircular connecting pipe 4 from affecting the transmission of the transmission belt 11. If the transmission belt 11 is directly plugged into the water flow transmission pipe 3, it may cause water in the water flow transmission pipe 3 to leak. Therefore, in order to ensure that the water in the water flow transmission pipe 3 still circulates, the semicircular connecting pipe 4 is used to prevent the water in the water flow transmission pipe 3 from contacting the transmission belt 11.

[0046] See also Figure 3 , a water-cooled conveying system for ash leakage from the bottom of a power plant furnace: comprising a steam driving module, a conveying module and a linkage module;

[0047] Water vapor module: heats water to form water vapor;

[0048] Conveying module: The steam generated by the steam module is used to start and form suction, so that the high-temperature bottom ash moves quickly in the ash conveying pipe;

[0049] Linkage module: Starts synchronously with the delivery module to stir the water in the water transmission pipe to increase the fluidity of the water.

[0050] Working principle:

[0051] Since the temperature at the bottom of the boiler is relatively high, an arc-shaped water tank 201 is arranged near the bottom of the boiler. When the water in the arc-shaped water tank 201 is heated, water vapor is generated. The water vapor is transmitted to the inside of the ash conveying pipe 1 through the gas pipe 202 and then blown onto one of the rotating shafts 203 and the fan blades 204. The gas emitted by the water vapor drives the multiple fan blades 204 and the rotating shaft 203 to rotate.

[0052] When the rotating shaft 203 rotates, the rotating rod 205 drives another rotating shaft 203 and a plurality of fan blades 204 to rotate. The rotating fan blades 204 generate suction in the ash conveying pipe 1, so that the bottom ash falls into the ash conveying pipe 1 through the ash collecting funnel 16 and can be quickly sucked to the vicinity of the fan blades 204. Then, the ash will pass over the fan blades 204 and fall into the ash conveying pipe 1 below, so that the ash conveying pipe 1 can conveniently transport the ash to other places.

[0053] The ash absorption makes the ash move faster in the ash conveying pipe 1, which can effectively prevent the high-temperature ash from causing local overheating of the ash conveying pipe 1, and the rapid movement of the ash also makes the ash temperature drop faster. The water flow transmission pipe 3 is filled with cold water for cooling the ash conveying pipe 1 and the ash in the ash conveying pipe 1.

[0054] The rotating rod 205 rotates together with the pulley 10, and the pulley 10 drives another pulley 10 and the mounting rod 14 through the transmission belt 11. When the mounting rod 14 rotates, it will drive the circular mounting plate 17 and the fan blade 18 to rotate. The rotation of the fan blade 18 will stir the water in the water flow transmission pipe 3. By stirring the water, the fan blade 18 can increase the fluidity of the water, which helps to more effectively transfer heat from the ash conveying pipe 1 to the water in the water flow transmission pipe 3. The flowing water can take away the heat more evenly, thereby improving the cooling effect of the water flow transmission pipe 3.

Claims

1. A water-cooled ash conveying device for a power plant furnace bottom, comprising an ash conveying pipe (1) and a water flow conveying pipe (3), characterized in that: An accelerated ash suction component (2) is arranged on one side of the ash conveying pipe (1), and the accelerated ash suction component (2) comprises an arc-shaped water tank (201) arranged on one side of a water flow transmission pipe (3), and an air transmission pipe (202) is plugged into the top of the arc-shaped water tank (201). Two rotating shafts (203) are arranged inside the ash conveying pipe (1), and a plurality of fan blades (204) are installed on the outer wall of the rotating shaft (203), and a rotating rod (205) is connected between the two rotating shafts (203).

2. The water-cooling conveying equipment for ash leakage from the bottom of a power plant as claimed in claim 1, characterized in that: The bottom end of one of the rotating shafts (203) is rotatably connected to a support rod (9), the bottom end of the support rod (9) is connected to the inner wall of the ash conveying pipe (1), and a conical block (8) is installed on the top of the rotating shaft (203).

3. The water-cooled conveying equipment for ash leakage from the bottom of a power plant as claimed in claim 1, characterized in that: An air guide plate (7) is installed at one end of the gas delivery pipe (202) extending to the inside of the ash delivery pipe (1), a heat conducting plate (5) is installed on the top of the arc-shaped water tank (201), the gas delivery pipe (202) is plugged into the heat conducting plate (5), and a fixing frame (6) is installed at the bottom of the arc-shaped water tank (201).

4. The water-cooled conveying equipment for ash leakage from the bottom of a power plant as claimed in claim 1, characterized in that: The water flow transmission pipe (3) is rotatably connected to a mounting rod (14); pulleys (10) are installed on the outer walls of the rotating rod (205) and the mounting rod (14); a transmission belt (11) is connected between the two pulleys (10); a circular mounting plate (17) is installed on the outer wall of the mounting rod (14); and a plurality of fan blades (18) are installed on the outer wall of the circular mounting plate (17).

5. The water-cooled conveying equipment for ash leakage from the bottom of a power plant as claimed in claim 4, characterized in that: Two sealing pads (15) are installed on the outer wall of the mounting rod (14), and the sealing pads (15) are located at the connection between the mounting rod (14) and the water flow transmission pipe (3). The ash conveying pipe (1) is provided with two through grooves (12), and a scraper (13) is installed on the inner wall of the through groove (12). The transmission belt (11) is slidably connected to the scraper (13).

6. The water-cooled conveying equipment for ash leakage from the bottom of a power plant as claimed in claim 1, characterized in that: A semicircular connecting pipe (4) is installed between the two water flow transmission pipes (3), the semicircular connecting pipe (4) is connected to the water flow transmission pipe (3), the ash conveying pipe (1) is located between the water flow transmission pipe (3) and the semicircular connecting pipe (4), and the semicircular connecting pipe (4) is located on a side away from the transmission belt (11).

7. A water-cooled conveying system for ash leakage from the bottom of a power plant, characterized in that: It includes a water vapor driving module, a conveying module and a linkage module; Water vapor module: heats water to form water vapor; Conveying module: The steam generated by the steam module is used to start and form suction, so that the high-temperature bottom ash moves quickly in the ash conveying pipe; Linkage module: Starts synchronously with the delivery module to stir the water in the water transmission pipe to increase the fluidity of the water.

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