A waste heat boiler with self-cleaning function of heat exchange pipe

Abstract

The present application relates to the technical field of waste heat boiler, especially to a waste heat boiler with heat exchange pipeline self-cleaning function. The waste heat boiler comprises an outer shell, a first treatment box fixedly connected inside the outer shell, a second treatment box fixedly connected inside the outer shell, a first flow-through pipe fixedly connected between the second treatment box and the adjacent first treatment box, a third treatment box fixedly connected inside the outer shell, a second flow-through pipe fixedly connected between the third treatment box and the adjacent first treatment box, a water pump arranged on the first flow-through pipe and the second flow-through pipe, a water storage tank fixedly connected inside the outer shell, a heat exchange pipe fixedly connected between the water storage tank and the third treatment box, and a reversing plate rotationally connected inside the outer shell through a rotating shaft. The position of the reversing plate and the working mode of the water pump are switched, so that the movement direction of the flue gas and the flow direction of the water are changed, the water and the flue gas are always in a convection state, and the heat transfer efficiency between the water and the flue gas is improved.

Description

Technical Field

[0001] This invention relates to the field of waste heat boiler technology, and in particular to a waste heat boiler with a self-cleaning function for heat exchange pipes. Background Technology

[0002] Waste heat boilers are devices that reuse the waste heat in flue gas or exhaust gas. They are widely used in industries that require large amounts of high-temperature heat energy, such as petrochemicals, textiles, power, food, and pharmaceuticals. Waste heat boilers recover and reuse the heat energy in exhaust gas and flue gas, thereby achieving the dual goals of energy conservation and emission reduction.

[0003] During the operation of waste heat boilers, flue gas is typically used to heat the water in the boiler to produce steam. The flue gas contains a large amount of dust and impurities, which tend to adhere to the windward side of the heat exchange tubes. This reduces the contact area between the heat exchange tubes and the flue gas, resulting in a decrease in the heat exchange efficiency and consequently, a reduction in the steam production efficiency. Furthermore, due to the high internal temperature of the waste heat boiler, it is often necessary to stop the boiler from operating before cleaning the heat exchange tubes, further reducing the efficiency of steam production. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the background art, the present invention provides a waste heat boiler with a self-cleaning function for heat exchange pipes.

[0005] The technical solution is as follows: A waste heat boiler with a self-cleaning function for heat exchange pipes includes an outer shell, symmetrically distributed air outlets and air inlets. A first treatment box is symmetrically distributed inside the outer shell, with an inlet water pipe and an outlet air pipe fixedly connected and connected to each first treatment box, both penetrating the outer shell. A second treatment box is symmetrically distributed inside the outer shell, with a first flow pipe fixed between the second treatment box and an adjacent first treatment box. A third treatment box is symmetrically distributed inside the outer shell, with a first flow pipe fixed between the third treatment box and an adjacent first treatment box. A second flow pipe is fixedly connected between the first and second processing tanks. Both the first and second flow pipes are equipped with water pumps. A partition is fixedly connected inside the outer shell. Symmetrically distributed water storage tanks are fixedly connected inside the outer shell. Heat exchange tubes are uniformly distributed between the water storage tanks and the adjacent third and second processing tanks. A reversing plate is rotatably connected inside the outer shell via a rotating shaft. A power transmission component is installed inside the outer shell. A cleaning component is installed inside the outer shell for cleaning the heat exchange tubes. By switching the position of the reversing plate, the heating direction of the heat exchange tubes is changed.

[0006] To further explain, the baffle is located in the middle of the outer shell, so that the heat exchange tubes are subjected to the same airflow.

[0007] To further explain, the heat exchange tubes fixed to the second treatment tank and the heat exchange tubes fixed to the adjacent third treatment tank are inclined in opposite directions, so that the water is heated evenly.

[0008] To further explain, the uniformly distributed heat exchange tubes are staggered to ensure a uniform distribution of flue gas.

[0009] To further explain, the transmission component includes a fixed rod, which is fixed inside the outer casing. The fixed rod is rotatably connected to a blade, and a crank is mounted on the lower side of the blade. A rack is slidably connected to the outer casing, and the crank is rotatably connected to the rack. A transmission component is provided inside the outer casing, and the rack is connected to the transmission component for transmission.

[0010] To further explain, the blades and the baffle are on the same horizontal plane, which is used for the blades to rotate in opposite directions.

[0011] To further explain, the blade is provided with a limit groove, and the fixing rod is fixedly connected with a limit block that is slidably connected to the limit groove.

[0012] Further explanation: The cleaning component includes symmetrically distributed push rods, which are slidably connected to the outer casing. The push rods are connected to a rack and pinion drive via a transmission component. A water storage tank is fixedly connected to symmetrically and equidistantly distributed first fixed plates and a second fixed plate, which are also symmetrically and equidistantly distributed. The first fixed plate is provided with a first sliding groove, which has the same inclination angle as the adjacent heat exchange tube. The second fixed plate is provided with a fourth sliding groove, which is parallel to the first and fourth sliding grooves. Sliding rods are slidably connected to both the first and second fixed plates. The push rods are provided with limit sliding grooves, and the sliding rods are limited and slidably connected to the limit sliding grooves. The sliding rods near the first fixed plate are limited and slidably engaged with the first sliding groove, and the sliding rods near the second fixed plate are limited and slidably engaged with the fourth sliding groove. Movable plates are slidably connected between the symmetrically distributed sliding rods, and adjacent movable plates are in contact with each other. The movable plates are slidably connected to adjacent heat exchange tubes.

[0013] To further explain, the first fixed plate is provided with a second slide groove and a third slide groove, which are connected end to end. The first slide groove and the third slide groove have different depths. The second fixed plate is provided with a fifth slide groove and a sixth slide groove, which are connected end to end. The fourth slide groove and the sixth slide groove have different depths. Springs are fixed between adjacent movable plates, and springs are fixed between the sliding rod and adjacent movable plates.

[0014] To further explain, the water storage tank is fixed with symmetrically and equidistantly distributed cleaning rods for cleaning the movable plate.

[0015] The beneficial effects of this invention are as follows: By switching the position of the reversing plate, the movement direction of the flue gas in the outer casing is changed, and the working mode of the water pump is switched, changing the flow direction of the water, so that the water and flue gas are always in a convection state, improving the heat transfer efficiency between the water and flue gas; the flue gas is evenly distributed among the staggered heat exchange tubes, so that the flue gas cools the water in the heat exchange tubes evenly; when the air inlet starts to ventilate or the position of the reversing plate changes, the fan blades drive the cleaning assembly through the transmission component to clean the surface of the heat exchange tubes, increasing the contact area between the heat exchange tubes and the flue gas, and improving the heat exchange efficiency between the heat exchange tubes and the flue gas; during the process of the push rod cleaning the surface of the heat exchange tubes, the limiting groove limits the limiting block, stopping the push rod from moving and preventing the push rod from repeatedly scraping the heat exchange tubes, which would cause wear on the surface of the heat exchange tubes; during the process of the movable plate resetting, the movable plate disengages from the heat exchange tubes, avoiding the heat exchange tubes from being rubbed by the movable plate, which would cause wear and damage to the heat exchange tubes. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a diagram showing the positional relationship between the first processing box and components such as the exhaust pipe of the present invention.

[0018] Figure 3 This is a diagram showing the positional relationship between the second processing box, the third processing box, and other components of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the first flow tube and heat exchange tube of the present invention.

[0020] Figure 5 For the present invention Figure 2 Enlarged view of point A in the image.

[0021] Figure 6 This is a diagram showing the positional relationship between the crank and the rack, etc., of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the first fixing plate and the second fixing plate of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the first fixing plate and the second fixing plate of the present invention.

[0024] Figure 9 This is a three-dimensional structural diagram of the push rod and movable plate of the present invention.

[0025] Figure 10 For the present invention Figure 9 Enlarged view of point B in the image.

[0026] In the above attached diagrams: 101: Outer casing; 102: Air outlet; 103: Air inlet; 104: First processing box; 105: Water inlet pipe; 106: Air outlet pipe; 107: Second processing box; 108: First flow pipe; 109: Third processing box; 110: Second flow pipe; 111: Baffle plate; 112: Water storage tank; 113: Heat exchanger tube; 114: Diverter plate; 201: Fixing rod; 202: Blade; 203: Limiting groove, 204: limiting block, 205: crank, 206: rack and pinion, 207: transmission component, 301: push rod, 302: first fixed plate, 3021: first slide groove, 3022: second slide groove, 3023: third slide groove, 303: second fixed plate, 3031: fourth slide groove, 3032: fifth slide groove, 3033: sixth slide groove, 304: sliding rod, 305: movable plate, 306: cleaning rod. Detailed Implementation

[0027] The invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are illustrated. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0028] Example 1: A waste heat boiler with self-cleaning function for heat exchange pipes, such as Figures 1-4As shown, the device includes an outer casing 101 with two symmetrically distributed air outlets 102 and an air inlet 103 on the right side. Two symmetrically distributed first processing boxes 104 are fixedly connected inside the outer casing 101. Each first processing box 104 is fixedly connected to and connected to a water inlet pipe 105 and an air outlet pipe 106, both of which penetrate the outer casing 101. Two symmetrically distributed second processing boxes 107 are fixedly connected inside the outer casing 101, and a first flow pipe 10 is fixedly connected between each second processing box 107 and an adjacent first processing box 104. 8. Two symmetrically distributed third treatment boxes 109 are fixedly connected inside the outer casing 101. The third treatment box 109 is located behind the adjacent second treatment box 107. A second flow pipe 110 is fixedly connected between the third treatment box 109 and the adjacent first treatment box 104. Both the first flow pipe 108 and the second flow pipe 110 are equipped with water pumps. A partition 111 is fixedly connected inside the outer casing 101, dividing the flue gas into upper and lower parts. Two symmetrically distributed water storage tanks 112 are fixedly connected inside the outer casing 101, located below the third treatment box 109. The water storage tanks 112 and... Both the adjacent third processing tank 109 and the adjacent second processing tank 107 are fixedly connected with uniformly distributed heat exchange tubes 113. The heat exchange tubes 113 fixed to the second processing tank 107 and the adjacent third processing tank 109 are inclined in different directions, causing water and flue gas to flow in opposite directions, accelerating the water's heating rate and improving the efficiency of water conversion into water vapor. The uniformly distributed heat exchange tubes 113 are staggered, and the flue gas continuously changes its direction of movement between the staggered heat exchange tubes 113, making the flue gas evenly distributed among the staggered heat exchange tubes 113 and increasing the flue gas residence time, allowing the water to be filled with the flue gas. The heating is divided into two parts. The heat exchange tubes 113 on the upper and lower sides are rotatably connected to the heat exchange tubes 113 via a rotating shaft. The partition plate 111 is located in the middle of the heat exchange tubes 101, so that the heat exchange tubes 113 on the upper and lower sides are subjected to the same wind force, ensuring that the water is fully heated. The heat exchange tubes 113 are equipped with a power transmission component and a cleaning component inside the heat exchange tubes 101. After the windward side of the heat exchange tubes 113 is covered with dust, the position of the reversing plate 114 is switched to change the direction of the flue gas and the direction of heating of the heat exchange tubes 113, ensuring that the heat exchange tubes 113 are fully heated by the flue gas.

[0029] When using this device to heat water, the operator rotates the reversing plate 114 to tilt it upwards and to the right. The operator introduces flue gas into the air inlet 103, opens the upper air outlet 102, and fills the first treatment tank 104 with water through the water inlet pipe 105. When the water level is in the middle of the first treatment tank 104, the operator closes the water inlet pipe 105. The flue gas is guided by the reversing plate 114 to the area below the partition 111, and then the flue gas is discharged from the upper air outlet 102. The operator turns on all the water pumps. When the water pumps below the partition 111 are running, the water pumps connected to the first flow pipe 108 and the water pumps connected to the second flow pipe 110 run in opposite directions. The water pump connected to the first flow pipe 108 transports the water in the first treatment tank 104 to the second treatment tank 107. Water in the second treatment tank 107 flows into the adjacent water storage tank 112 through the heat exchange pipe 113 that slopes downward to the right. A water pump connected to the second flow pipe 110 transports water from the lower water storage tank 112 to the adjacent third treatment tank 109 through the heat exchange pipe 113 that slopes upward to the right, and then transports water from the third treatment tank 109 to the adjacent first treatment tank 104. The water heated by the flue gas flows back to the first treatment tank 104, causing the water temperature in the first treatment tank 104 to gradually rise. Water vapor is discharged from the first treatment tank 104 through the exhaust pipe 106. When the water level is lower than that in the first treatment tank 104, the operator opens the inlet pipe 105 and fills the first treatment tank 104 with water until the water level is in the middle of the first treatment tank 104. The operator then closes the inlet pipe 105.

[0030] As water in the second processing tank 107 flows into the storage tank 112 through the heat exchange tube 113 that slopes downward to the right, the flue gas below the baffle 111 comes into contact with the heat exchange tube 113 that slopes downward to the right, and the flue gas heats the heat exchange tube 113. The inclined heat exchange tube 113 increases the distance the water flows, thus increasing the heat exchange time between the water and the flue gas. Furthermore, the water moving downward to the right and the flue gas moving to the left convect, making the heat exchange between the flue gas and the water more complete and the heat exchange efficiency between the water and the flue gas higher.

[0031] As the water in the water storage tank 112 enters the third processing tank 109 through the heat exchange tube 113 that is inclined to the upper right, the flue gas below the partition 111 comes into contact with the heat exchange tube 113 that is inclined to the upper right. The water moves along the heat exchange tube 113 that is inclined to the upper right, and the flue gas and water convect, making the heat exchange efficiency between the water and the flue gas higher.

[0032] When the flue gas is above the baffle 111 and exchanges heat with the heat exchange tube 113 above the baffle 111, the flue gas convections with the water moving to the lower left and the water moving to the upper left, causing the water in the heat exchange tube 113 above the baffle 111 to be heated rapidly.

[0033] When a large amount of impurities adhere to the windward side of the heat exchange tube 113, the operator rotates the reversing plate 114 to tilt it to the lower right, changing the flow of flue gas and moving it towards the leeward side of the heat exchange tube 113. This ensures the heat exchange efficiency between the water and the flue gas in the heat exchange tube 113. The operator then controls the water pump to run in reverse, allowing the water to flow in the opposite direction and improving the heat exchange efficiency between the water and the flue gas.

[0034] After the operator rotates the reversing plate 114, the flue gas moves to the upper left along the reversing plate 114 and enters the upper part of the baffle 111, where it exchanges heat with the heat exchange tube 113 above the baffle 111. The movement directions of both the flue gas and water change, but the water and flue gas remain in a convective state, maintaining a high efficiency of heat exchange between the water and the flue gas. The flue gas reaches the lower part of the baffle 111 and is discharged from the lower air outlet 102. When it is necessary to stop the operation of the waste heat boiler, the operator turns off all water pumps and stops ventilation into the outer casing 101.

[0035] Example 2: Based on Example 1, such as Figure 5 and Figure 6 As shown, the transmission assembly includes a fixed rod 201, which is fixedly connected to the upper side of the outer casing 101. The fixed rod 201 is rotatably connected to a blade 202, which is on the same horizontal plane as the partition 111, so that the rotation direction of the blade 202 changes when the wind direction changes. The blade 202 is provided with a semi-circular arc-shaped limiting groove 203. The fixed rod 201 is fixedly connected to a limiting block 204 that is slidably connected to the limiting groove 203. The semi-circular arc-shaped limiting groove 203 limits the limiting block 204. To avoid the cleaning components continuously cleaning the heat exchange tube 113, which could cause wear or damage to the heat exchange tube 113, a crank 205 is installed on the lower side of the blade fan 202. A spur rack 206 is slidably connected to the outer casing 101. The crank 205 and the spur rack 206 are rotatably connected. Symmetrically distributed transmission components 207 are provided inside the outer casing 101. The transmission component 207 consists of a fixed rod, two transmission gears, two bevel gears, and a transmission rack. The spur rack 206 is connected to the symmetrically distributed transmission components 207.

[0036] like Figures 7-10As shown, the cleaning assembly includes symmetrically distributed push rods 301, which are slidably connected to the outer casing 101. The push rods 301 are connected to a rack and pinion 206 via a transmission component 207. A water storage tank 112 is fixedly connected to symmetrically and equidistantly distributed first fixing plates 302 and symmetrically and equidistantly distributed second fixing plates 303. The first fixing plates 302 and adjacent second fixing plates 303 form a group. The first fixing plate 302 is provided with an inclined first sliding groove 3021, which has the same inclination angle as the adjacent heat exchange tube 113. The second fixing plate 303 is provided with an inclined fourth sliding groove 3031, which is parallel to the first sliding groove 3021. The first fixing plate 302 and the second fixing plate 303 are connected to the outer casing 101 via a transmission component 207. Each of the second fixed plates 303 is slidably connected to a sliding rod 304. The push rod 301 is provided with a limiting groove. The sliding rod 304 is slidably connected to the limiting groove. The sliding rod 304 near the first fixed plate 302 is slidably engaged with the first groove 3021. The sliding rod 304 near the second fixed plate 303 is slidably engaged with the fourth groove 3031. The symmetrically distributed sliding rods 304 are slidably connected to movable plates 305. The movable plates 305 are provided with equidistantly distributed semi-circular notches. Two adjacent movable plates 305 are in contact with each other. Two adjacent movable plates 305 form a group. Each group of movable plates 305 scrapes away impurities from the surface of the adjacent heat exchange tube 113. The movable plates 305 are slidably connected to the adjacent heat exchange tube 113.

[0037] like Figures 8-10As shown, the first fixed plate 302 is provided with a second sliding groove 3022 and a third sliding groove 3023. The first sliding groove 3021, the second sliding groove 3022, and the third sliding groove 3023 are connected end to end. The depth of the first sliding groove 3021 is greater than the depth of the third sliding groove 3023, and the depth of the first sliding groove 3021 gradually decreases from top to bottom. The end of the first sliding groove 3021 is smoothly connected to the second sliding groove 3022 to prevent the sliding rod 304 from entering the third sliding groove 3023 when it slides obliquely downward along the first sliding groove 3021, thereby causing the heat exchange tube 113 to lose contact with the movable plate 305 on the left. The second fixed plate 303 is provided with a fifth sliding groove 3032 and a sixth sliding groove 3033. The fourth sliding groove 3021, the fifth sliding groove 3032, and the sixth sliding groove 3033 are connected end to end. The depth of the fourth groove 3031 is greater than the depth of the sixth groove 3033, and the depth of the fourth groove 3031 gradually decreases from top to bottom. The end of the fourth groove 3031 is smoothly connected to the fifth groove 3032 to prevent the sliding rod 304 from entering the sixth groove 3033 when it slides obliquely downward along the fourth groove 3031, thereby causing the heat exchange tube 113 to lose contact with the right movable plate 305. A spring is fixed between the adjacent movable plates 305, and a spring is fixed between the sliding rod 304 and the adjacent movable plate 305. The water storage tank 112 is fixed with symmetrical and equidistantly distributed cleaning rods 306. The cleaning rods 306 cooperate with the adjacent movable plates 305 to scrape off the impurities adhering to the lower surface of the adjacent movable plates 305, making it convenient for the movable plates 305 to clean the surface of the heat exchange tube 113 again.

[0038] When the air inlet 103 starts blowing air, the flue gas drives the fan blades 202 to rotate, causing the limiting block 204 to slide in the semi-circular limiting groove 203. The fan blades 202 drive the rack 206 to move via the crank 205. The rack 206 drives the push rod 301 to move downward via the transmission component 207. The push rod 301 drives the movable plate 305 to move obliquely downward along the adjacent heat exchange tube 113. The movable plate 305 scrapes away impurities from the surface of the adjacent heat exchange tube 113. When the limiting block 204 is located in the middle of the limiting groove 203, the crank 205 drives the rack 206 to move in the opposite direction. The rack 206 drives the push rod 301 to move upward through the transmission component 207. The push rod 301 drives the movable plate 305 to move obliquely upward. When the limiting block 204 is at the end of the limiting groove 203, the movable plate 305 returns to the initial position and stops moving. The limiting block 204 limits the number of times the movable plate 305 cleans the heat exchange tube 113, so as to avoid the movable plate 305 damaging the heat exchange tube 113. When the operator switches the position of the reversing plate 114, the blade fan 202 rotates in the opposite direction and repeats the above steps, so that the movable plate 305 scrapes off the impurities on the surface of the heat exchange tube 113.

[0039] During the process of the push rod 301 driving the movable plate 305 to move obliquely downward, the spring between the sliding rod 304 and the movable plate 305 is in a compressed state. The movable plate 305 drives the sliding rod 304 near the first fixed plate 302 to slide in the first slide groove 3021, and drives the sliding rod 304 near the second fixed plate 303 to slide in the fourth slide groove 3031. At this time, the spring between the adjacent movable plates 305 is in a compressed state. When the sliding rod 304 moves to the lower end of the first slide groove 3021 and the fourth slide groove 3031, the spring between the adjacent movable plates 305 rebounds, causing the two adjacent sliding rods 304 to move in opposite directions, thereby causing the two adjacent movable plates 305 to move in opposite directions. The two adjacent sliding rods 304 slide in the second slide groove 3022 and the fifth slide groove 3032 respectively, and the movable plate 305 stops contacting the heat exchange tube 113.

[0040] During the process of two adjacent movable plates 305 moving in opposite directions, the lower surface of the movable plate 305 contacts the upper surface of the adjacent cleaning rod 306, so that the impurities adhering to the lower surface of the movable plate 305 are scraped off by the cleaning rod 306, making it convenient for the movable plate 305 to be used next time.

[0041] After the spring between the adjacent movable plates 305 rebounds, the crank 205 drives the rack 206 to move in the opposite direction. The rack 206 drives the push rod 301 to move downward through the transmission component 207. The push rod 301 drives the movable plate 305 to move obliquely upward through the sliding rod 304. During the upward movement of the movable plate 305, it no longer contacts the adjacent heat exchange tube 113, thereby reducing the wear of the movable plate 305 on the heat exchange tube 113 and increasing the service life of the heat exchange tube 113. The two adjacent sliding rods 304 enter the third sliding groove 3023 and the sixth sliding groove 3033 respectively. The push rod 301 drives the two adjacent sliding rods to move downward. Rod 304 moves along the third slide groove 3023 and the sixth slide groove 3033. Since the depths between the first slide groove 3021 and the third slide groove 3023 are different, and the depths between the fourth slide groove 3031 and the sixth slide groove 3033 are different, when two adjacent sliding rods 304 leave the third slide groove 3023 and the sixth slide groove 3033 respectively, under the action of the spring force between the sliding rod 304 and the movable plate 305, the symmetrically distributed sliding rods 304 extend outward, and the two adjacent sliding rods 304 enter the first slide groove 3021 and the fourth slide groove 3031 respectively, and the two adjacent movable plates 305 contact each other again.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A waste heat boiler with self-cleaning function for heat exchange pipes, characterized in that, The system includes an outer casing (101), which has symmetrically distributed air outlets (102) and an air inlet (103). A first processing box (104) is fixedly connected inside the outer casing (101). The first processing box (104) is fixedly connected to and connected to an inlet pipe (105) and an outlet pipe (106), both of which penetrate the outer casing (101). A second processing box (107) is fixedly connected inside the outer casing (101). A first flow pipe (108) is fixedly connected between the second processing box (107) and the adjacent first processing box (104). A third processing box (109) is fixedly connected inside the outer casing (101). The third processing box (109) is fixedly connected to the adjacent first processing box (104). A second flow pipe (110) is connected, and a water pump is provided in both the first flow pipe (108) and the second flow pipe (110). A partition plate (111) is fixedly connected inside the outer shell (101), and a water storage tank (112) is fixedly connected inside the outer shell (101). A uniformly distributed heat exchange tube (113) is fixedly connected between the water storage tank (112) and the adjacent third processing tank (109) and the adjacent second processing tank (107). A reversing plate (114) is rotatably connected inside the outer shell (101) through a rotating shaft. A power transmission component is provided inside the outer shell (101), and a cleaning component is provided inside the outer shell (101) for cleaning the heat exchange tube (113). By switching the position of the reversing plate (114), the heating direction of the heat exchange tube (113) is changed. The transmission assembly includes a fixed rod (201), which is fixed to the inside of the outer casing (101). The fixed rod (201) is rotatably connected to a blade (202). A crank (205) is installed on the lower side of the blade (202). A rack (206) is slidably connected to the outer casing (101). The crank (205) is rotatably connected to the rack (206). A transmission component (207) is provided inside the outer casing (101). The rack (206) is connected to the transmission component (207) in a transmission connection. The cleaning assembly includes symmetrically distributed push rods (301), which are slidably connected to the outer casing (101). The push rods (301) are connected to a rack and pinion (206) via a transmission component (207). A water storage tank (112) is fixedly connected to a first fixed plate (302) that is symmetrically and equidistantly distributed, and a second fixed plate (303) that is symmetrically and equidistantly distributed. The first fixed plate (302) is provided with a first sliding groove (3021), which is inclined at the same angle as the adjacent heat exchange tube (113). The second fixed plate (303) is provided with a fourth sliding groove (3031), which is inclined at the same angle as the first sliding groove (3021) and the fourth sliding groove (3031). 031) Parallel, the first fixed plate (302) and the second fixed plate (303) are slidably connected with sliding rods (304), the push rod (301) is provided with a limiting groove, the sliding rod (304) is limited to the limiting groove, the sliding rod (304) near the first fixed plate (302) is limited to the first groove (3021), the sliding rod (304) near the second fixed plate (303) is limited to the fourth groove (3031), the symmetrically distributed sliding rods (304) are slidably connected with movable plates (305), the adjacent movable plates (305) are in contact with each other, and the movable plates (305) are slidably connected with the adjacent heat exchange tubes (113).

2. A waste heat boiler with self-cleaning function for heat exchange pipes according to claim 1, characterized in that, The baffle (111) is located in the middle of the outer shell (101) so that the heat exchange tube (113) is subjected to the same wind force.

3. A waste heat boiler with self-cleaning function for heat exchange pipes according to claim 2, characterized in that, The heat exchange tube (113) fixed to the second treatment tank (107) and the heat exchange tube (113) fixed to the adjacent third treatment tank (109) are inclined and in opposite directions, so that the water is heated evenly.

4. A waste heat boiler with self-cleaning function for heat exchange pipes according to claim 3, characterized in that, The heat exchange tubes (113) are evenly distributed and staggered to ensure that the flue gas is evenly distributed.

5. A waste heat boiler with self-cleaning function for heat exchange pipes according to claim 1, characterized in that, The blade (202) and the partition (111) are on the same horizontal plane for the blade (202) to rotate in opposite directions.

6. A waste heat boiler with self-cleaning function for heat exchange pipes according to claim 5, characterized in that, The blade (202) is provided with a limiting groove (203), and the fixing rod (201) is fixedly connected with a limiting block (204) that is limited and slidably connected to the limiting groove (203).

7. A waste heat boiler with self-cleaning function for heat exchange pipes according to claim 1, characterized in that, The first fixed plate (302) is provided with a second slide groove (3022) and a third slide groove (3023). The first slide groove (3021), the second slide groove (3022) and the third slide groove (3023) are connected end to end. The depths of the first slide groove (3021) and the third slide groove (3023) are different. The second fixed plate (303) is provided with a fifth slide groove (3032) and a sixth slide groove (3033). The fourth slide groove (3031), the fifth slide groove (3032) and the sixth slide groove (3033) are connected end to end. The depths of the fourth slide groove (3031) and the sixth slide groove (3033) are different. A spring is fixed between adjacent movable plates (305). A spring is fixed between the sliding rod (304) and the adjacent movable plate (305).

8. A waste heat boiler with self-cleaning function for heat exchange pipes according to claim 7, characterized in that, The water storage tank (112) is fixed with symmetrical and equidistantly distributed cleaning rods (306) for cleaning the movable plate (305).

Images