Waste heat power generation structure

Abstract

The utility model relates to the technical field of waste heat power generation, in particular to a waste heat power generation structure which comprises a bottom plate, a boiler, an air outlet pipe, a water pump, a liquid discharge pipe and a steam turbine generator, the boiler is fixedly installed at the upper end of the bottom plate through the air outlet pipe, the boiler is provided with a heater and the air outlet pipe, and the air outlet pipe is communicated with the steam turbine generator. The steam turbine generator is installed on the bottom plate, and the input end of the water pump is connected with the boiler through a liquid discharging pipe. The conveying end of the induced draft fan communicates with the filtering mechanism through the air supply pipe, the filtering mechanism has a filtering function, the heat exchange cylinder is installed at the upper end of the bottom plate through the support, dust attached to the interior of the heat exchange pipe can be automatically washed away, use is convenient, and the labor intensity is low.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat power generation, in particular to a waste heat power generation structure. Background Art

[0002] Waste heat power generation refers to using the heat in high-temperature flue gas to heat water, so that the water produces steam, and the steam drives the steam turbine to generate electricity. In the prior art, the utility model patent with patent application number 202120973620.9 discloses a sintering furnace cooling wind waste heat power generation system, which, when in use, passes the high-temperature flue gas into the heat exchange tube in the heat exchange module, so that the flue gas heats the water in the water tank through the heat exchange tube, and then generates steam to drive the impeller in the steam turbine generator to rotate, and then generate electricity; the inventor believes that there are the following problems in its use. During long-term use, the high-temperature flue gas will continuously pass into the heat exchange tube to exchange heat with the external water, and the dust in the flue gas will inevitably gradually adhere to the inner wall of the heat exchange tube. In order to avoid clogging of the heat exchange tube, the staff must regularly clean the dust inside the heat exchange tube, and the above-mentioned device in the prior art needs to manually clean the dust in the heat exchange tube, which is inconvenient to use, so a waste heat power generation mechanism that can automatically clean the dust inside the heat exchange tube is needed. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a waste heat power generation structure, which can automatically wash away the dust attached to the heat exchange tube, is easy to use and has low labor intensity.

[0004] To achieve the above-mentioned purpose, the waste heat power generation structure of the utility model includes a base plate, a boiler, an air outlet pipe, a water pump, a drain pipe and a steam turbine generator. The boiler is fixedly installed on the upper end of the base plate through the air outlet pipe, a heater is provided on the boiler, an air outlet pipe is provided on the boiler, the air outlet pipe is communicated with the steam turbine generator, the steam turbine generator is installed on the base plate, and the input end of the water pump is connected to the boiler through the drain pipe; it also includes an induced draft fan, an air supply pipe, a bracket, a heat exchange cylinder, a filtering mechanism, a heat exchange mechanism and a flushing mechanism. The delivery end of the induced draft fan is communicated with the filtering mechanism through the air supply pipe, and the filtering mechanism has a filtering function. The heat exchange cylinder is installed on the upper end of the base plate through a bracket. A water cavity is provided in the heat exchange cylinder. The input end of the water pump is communicated with the water cavity of the heat exchange cylinder. The heat exchange mechanism is installed in the water cavity of the heat exchange cylinder. The output end of the filtering mechanism is communicated with the lower part of the heat exchange mechanism. The heat exchange mechanism has a heat exchange function, and the flushing mechanism is used to flush the heat exchange mechanism; the upper part of the heat exchange mechanism is connected to the external waste gas treatment mechanism When in use, the input end of the induced draft fan is connected with the discharge end of the high-temperature flue gas, and then the induced draft fan is turned on to allow the high-temperature flue gas to enter the filter mechanism through the air supply pipe for filtration, and then the flue gas enters the heat exchange mechanism in the water cavity of the heat exchange cylinder through the filter mechanism, and then the high-temperature flue gas exchanges heat with the water in the water cavity of the heat exchange cylinder through the heat exchange mechanism to heat the water in the water cavity of the heat exchange cylinder, and then the flue gas after heat exchange enters the external exhaust gas treatment mechanism through the upper part of the heat exchange mechanism for further treatment. When the water in the water cavity of the heat exchange cylinder is heated to a certain degree, the water pump is turned on to allow the water in the water cavity of the heat exchange cylinder to enter the boiler through the water pump and the drain pipe, and then the heater on the boiler is turned on to continue to heat the water preheated by the flue gas, and then the generated steam enters the steam turbine generator through the outlet pipe to generate electricity; when the dust in the heat exchange mechanism is cleaned, the flushing mechanism is turned on to allow the flushing mechanism to automatically flush the dust and impurities attached to the heat exchange mechanism.

[0005] Preferably, the filtering mechanism includes a supporting frame, a filter cartridge, a filter plate and an air supply pipe, the filter cartridge is fixedly mounted on the bottom plate through the supporting frame, a filter cavity is arranged in the filter cartridge, the filter plate is fixedly mounted in the filter cavity of the filter cartridge, a plurality of groups of filter holes are arranged on the filter plate, filter cloths are arranged in the filter holes of the filter plate, the output end of the air supply pipe is connected with the filter cavity of the filter cartridge, the output end of the air supply pipe is connected with the bottom of the filter plate, a valve is arranged on the air supply pipe, the input end of the air supply pipe is connected with the upper part of the filter cavity of the filter cartridge, and the output end of the air supply pipe is connected with the heat exchange mechanism; when transporting high-temperature flue gas, the high-temperature flue gas is allowed to enter the lower part of the filter cavity of the filter cartridge through the air supply pipe, and then the high-temperature flue gas is filtered by the filter plate and enters the heat exchange mechanism through the air supply pipe for heat exchange; by filtering the flue gas, dust in the flue gas is reduced, and dust entering the heat exchange mechanism is reduced.

[0006] Preferably, the heat exchange mechanism comprises a cylinder A, a cylinder B, a heat exchange tube and a connecting tube, the cylinder A is fixedly installed at the lower part of the water cavity of the heat exchange cylinder, the cylinder B is fixedly installed at the upper part of the water cavity of the heat exchange cylinder, the upper and lower ends of the multiple groups of heat exchange tubes are respectively connected with the cylinder B and the heat exchange tubes, the upper end of the connecting tube is connected with the cylinder A, the output end of the gas transmission pipe is connected with the connecting tube, valves are arranged on the connecting tube and the gas transmission pipe, the lower end of the connecting tube is located below the heat exchange cylinder, an exhaust pipe is arranged on the cylinder B, the output end of the exhaust pipe is located outside the heat exchange cylinder, and a valve is arranged on the exhaust pipe; when the heat exchange is carried out, When it is hot, the exhaust pipe on the cylinder B is connected to the external exhaust gas treatment mechanism, then the valve on the gas pipe is opened, and the valve on the connecting pipe is closed, so that the high-temperature exhaust gas enters into the multiple sets of heat exchange tubes through the gas pipe, the connecting pipe and the cylinder A, and then the exhaust gas in the multiple sets of heat exchange tubes exchanges heat with the water in the water cavity of the heat exchange cylinder through the side walls of the multiple sets of heat exchange tubes to heat the water, and then the exhaust gas after heat exchange enters into the external exhaust gas treatment mechanism through the cylinder B and the exhaust pipe on the cylinder B for further treatment; the exhaust gas can fully exchange heat with water through the multiple sets of heat exchange tubes.

[0007] Preferably, the flushing mechanism includes a delivery pump, a water supply pipe, a spray pipe A and a spray pipe B, the delivery pump is installed on the bottom plate, the output end of the delivery pump is connected to the water supply pipe, the input ends of the spray pipe A and the spray pipe B are both connected to the water supply pipe, valves are provided on the spray pipe A and the spray pipe B, the output end of the spray pipe A is connected to the cylinder B, the output end of the spray pipe B is located at the upper part of the filter cartridge chamber, the lower part of the filter cartridge is provided with a drain pipe connected to the chamber, and a valve is provided on the drain pipe; when it is necessary to clean the dust in the filter plate and the heat exchange tube, the valves on the air delivery pipe, the exhaust pipe and the air supply pipe are closed, and the connection is opened. The valves on the pipe, sewage pipe, spray pipe A and spray pipe B are then connected, and the input end of the delivery pump is connected to the external water source. The delivery pump is then turned on to allow the external water to enter the spray pipe A and spray pipe B through the water supply pipe in turn. The water in the spray pipe A enters the multiple groups of heat exchange tubes through the cylinder B to flush the multiple groups of heat exchange tubes. After that, the sewage in the multiple groups of heat exchange tubes is discharged to the outside through the cylinder A and the connecting pipe. The water in the spray pipe B falls onto the filter plate, and the water flushes the filter plate to flush the impurities attached to the filter plate. After that, the dust and impurities on the filter plate can be discharged to the outside through the sewage pipe at the bottom of the filter cartridge.

[0008] Preferably, it also includes a motor, a rotating shaft, a brush, a sleeve and a lifting mechanism. The motor is installed on the base plate through the lifting mechanism. The lifting mechanism is used to lift the motor. The lower end of the rotating shaft is connected to the motor. The brush is fixedly installed on the upper end of the rotating shaft. The brush is located in the chamber of the filter cartridge and below the filter plate. The rotating shaft is slidably installed on the sleeve, and the sleeve is rotatably installed on the lower side wall of the filter cartridge. When the filter plate is flushed, the lifting mechanism is turned on at the same time, so that the motor drives the rotating shaft to rise, and the rotating shaft causes the brush to rise until the upper end of the brush is tightly attached to the lower end of the filter plate. Then the motor is turned on, and the motor causes the brush to rotate through the rotating shaft. During the rotation, the brush brushes off the dust attached to the lower end of the filter plate.

[0009] Preferably, the lifting mechanism includes a hydraulic cylinder and a push rod, the hydraulic cylinder is fixedly mounted on the base plate, the lower end of the push rod is connected to the output end of the hydraulic cylinder, and the motor is fixedly mounted on the upper end of the push rod; when cleaning dust on the filter plate, the hydraulic cylinder is turned on, the hydraulic cylinder raises the motor through the push rod, and the motor raises the brush through the rotating shaft, thereby making the upper end of the brush contact with the filter plate, thereby facilitating the adjustment of the height of the brush.

[0010] Preferably, a high temperature resistant coating is provided on the inner wall of the filter cartridge; through the above arrangement, the high temperature resistance effect of the filter cartridge is improved, and the service life of the filter cartridge is increased.

[0011] Compared with the prior art, the utility model has the beneficial effects of automatically flushing the dust attached to the heat exchange tube, being easy to use, having low labor intensity and high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0013] Figure 2 It is a first axonometric structural schematic diagram of the utility model;

[0014] Figure 3 It is a second axonometric structural schematic diagram of the utility model;

[0015] Figure 4 It is a schematic diagram of the structure of the heat exchange tube, cylinder B and cylinder A;

[0016] Figure 5 It is a schematic diagram of the structure of gas transmission pipes, connecting pipes and heat exchange pipes;

[0017] Figure 6 It is a schematic diagram of the connection between cylinder A, cylinder B and spiral heat exchange tube in Example 3.

[0018] Markings in the attached figure: 1. bottom plate; 2. boiler; 3. air outlet pipe; 4. water pump; 5. drain pipe; 6. induced draft fan; 7. air supply pipe; 8. bracket; 9. heat exchange cylinder; 10. support frame; 11. filter cartridge; 12. filter plate; 13. air supply pipe; 14. cylinder A; 15. cylinder B; 16. heat exchange tube; 17. connecting pipe; 18. water supply pipe; 19. spray pipe A; 20. spray pipe B; 21. motor; 22. rotating shaft; 23. brush; 24. sleeve; 25. hydraulic cylinder; 26. push rod. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Example

[0020] like Figures 1 to 5The waste heat power generation structure of the utility model includes a bottom plate 1, a boiler 2, an air outlet pipe 3, a water pump 4, a drain pipe 5, a steam turbine generator, an induced draft fan 6, an air supply pipe 7, a bracket 8, a heat exchange cylinder 9, a filtering mechanism, a heat exchange mechanism and a flushing mechanism. The boiler 2 is fixedly mounted on the upper end of the bottom plate 1 through the air outlet pipe 3. The boiler 2 is provided with a heater. The air outlet pipe 3 is provided on the boiler 2. The air outlet pipe 3 is connected to the steam turbine generator. The steam turbine generator is installed on the bottom plate 1. The input end of the water pump 4 is connected to the boiler 2 through the drain pipe 5. The delivery pipe of the induced draft fan 6 The end is connected to the filter mechanism through the air supply pipe 7. The filter mechanism has a filtering function. The heat exchange cylinder 9 is installed on the upper end of the bottom plate 1 through the bracket 8. A water cavity is arranged in the heat exchange cylinder 9. The input end of the water pump 4 is connected to the water cavity of the heat exchange cylinder 9. The heat exchange mechanism is installed in the water cavity of the heat exchange cylinder 9. The output end of the filter mechanism is connected to the lower part of the heat exchange mechanism. The heat exchange mechanism has a heat exchange function. The flushing mechanism is used to flush the heat exchange mechanism. The upper part of the heat exchange mechanism is connected to the external exhaust gas treatment mechanism. When in use, the input end of the induced draft fan 6 is connected to the exhaust gas treatment mechanism of the high-temperature flue gas. The exhaust port is connected, and then the induced draft fan 6 is turned on to allow the high-temperature flue gas to enter the filter mechanism through the air supply pipe 7 for filtration. Then the flue gas enters the heat exchange mechanism in the water cavity of the heat exchange cylinder 9 through the filter mechanism. Then the high-temperature flue gas exchanges heat with the water in the water cavity of the heat exchange cylinder 9 through the heat exchange mechanism to increase the temperature of the water in the water cavity of the heat exchange cylinder 9. Then the flue gas that has undergone heat exchange enters the external exhaust gas treatment mechanism through the upper part of the heat exchange mechanism for further treatment. When the water in the water cavity of the heat exchange cylinder 9 is heated to a certain degree, the water pump 4 is turned on to allow the water in the heat exchange cylinder 9 to cool. The water in the cavity enters the boiler 2 through the water pump 4 and the drain pipe 5, and then the heater on the boiler 2 is turned on to continue heating the water preheated by the flue gas, and then the generated steam enters the steam turbine generator through the outlet pipe 3 to generate electricity; when the dust in the heat exchange mechanism is to be cleaned, the flushing mechanism is turned on to allow the flushing mechanism to automatically flush the dust and impurities attached to the heat exchange mechanism; it can automatically clean the dust and impurities in the heat exchange mechanism without manual cleaning, thereby improving convenience, reducing the labor of the staff, and having high practicality.

[0021] like Figure 1 and Figure 4The filtering mechanism includes a support frame 10, a filter cartridge 11, a filter plate 12 and an air supply pipe 13. The filter cartridge 11 is fixedly mounted on the bottom plate 1 through the support frame 10. A filter cavity is arranged in the filter cartridge 11. The filter plate 12 is fixedly mounted in the filter cavity of the filter cartridge 11. The filter plate 12 is provided with multiple groups of filter holes. Filter cloth is arranged in the filter holes of the filter plate 12. The output end of the air supply pipe 7 is connected with the filter cavity of the filter cartridge 11. The output end of the air supply pipe 7 is connected with the bottom of the filter plate 12. A valve is arranged on the air supply pipe 7. The input end of the air supply pipe 13 is connected with the upper part of the filter cavity of the filter cartridge 11. The output end of the air supply pipe 13 is connected with the heat exchange mechanism. When transporting high-temperature flue gas, the high-temperature flue gas enters the lower part of the filter cavity of the filter cartridge 11 through the air supply pipe 7. Then, the high-temperature flue gas is filtered by the filter plate 12 and enters the heat exchange mechanism through the air supply pipe 13 for heat exchange. By filtering the flue gas, dust in the flue gas is reduced, and dust entering the heat exchange mechanism is reduced.

[0022] The filter plate 12 may also be a filter screen, which can be fixedly installed in the filter cartridge 11 to filter the gas.

[0023] like Figure 4 The heat exchange mechanism includes a cylinder A14, a cylinder B15, a heat exchange tube 16 and a connecting tube 17. The cylinder A14 is fixedly installed at the lower part of the water cavity of the heat exchange cylinder 9. The cylinder B15 is fixedly installed at the upper part of the water cavity of the heat exchange cylinder 9. The upper and lower ends of the multiple groups of heat exchange tubes 16 are respectively connected with the cylinder B15 and the heat exchange tube 16. The upper end of the connecting tube 17 is connected with the cylinder A14. The output end of the gas transmission pipe 13 is connected with the connecting tube 17. Valves are provided on the connecting tube 17 and the gas transmission pipe 13. The lower end of the connecting tube 17 is located below the heat exchange cylinder 9. An exhaust pipe is provided on the cylinder B15. The output end of the exhaust pipe is located outside the heat exchange cylinder 9. A valve is provided on the exhaust pipe. When heat exchange is performed, the exhaust pipe on the cylinder B15 is connected to the external exhaust gas treatment mechanism, and then the valve on the gas pipe 13 is opened, and the valve on the connecting pipe 17 is closed, so that the high-temperature exhaust gas enters the multiple groups of heat exchange tubes 16 through the gas pipe 13, the connecting pipe 17 and the cylinder A14, and then the exhaust gas in the multiple groups of heat exchange tubes 16 exchanges heat with the water in the water cavity of the heat exchange cylinder 9 through the side walls of the multiple groups of heat exchange tubes 16 to heat up the water, and then the exhaust gas after heat exchange enters the external exhaust gas treatment mechanism through the cylinder B15 and the exhaust pipe on the cylinder B15 for further treatment; the exhaust gas can be fully heat exchanged with water through the multiple groups of heat exchange tubes 16.

[0024] like Figure 2 , Figure 4 and Figure 5The flushing mechanism includes a delivery pump, a water supply pipe 18, a spray pipe A19 and a spray pipe B20. The delivery pump is installed on the bottom plate 1. The output end of the delivery pump is connected to the water supply pipe 18. The input ends of the spray pipe A19 and the spray pipe B20 are both connected to the water supply pipe 18. Valves are provided on the spray pipe A19 and the spray pipe B20. The output end of the spray pipe A19 is connected to the cylinder B15. The output end of the spray pipe B20 is located at the upper part of the chamber of the filter cartridge 11. The lower part of the filter cartridge 11 is provided with a drain pipe connected to the chamber, and a valve is provided on the drain pipe. When it is necessary to clean the dust in the filter plate 12 and the heat exchange tube 16, close the valves on the air delivery pipe 13, the exhaust pipe and the air supply pipe 7, open the connecting pipe 17, the drain pipe, the spray pipe 19 and the air supply pipe 7, and open the connecting pipe 17, the drain pipe, the spray pipe 19 and the air supply pipe 7. The valves on the sprinkler pipe A19 and the spray pipe B20 are then connected, and the input end of the delivery pump is connected to the external water source. The delivery pump is then turned on to allow the external water to enter the spray pipe A19 and the spray pipe B20 through the water supply pipe 18 in turn. The water in the spray pipe A19 enters the multiple groups of heat exchange tubes 16 through the cylinder B15 to flush the multiple groups of heat exchange tubes 16. After that, the sewage in the multiple groups of heat exchange tubes 16 is discharged to the outside through the cylinder A14 and the connecting pipe 17. The water in the spray pipe B20 falls on the filter plate 12, and the water flushes the filter plate 12 to flush the impurities attached to the filter plate 12. After that, the dust on the filter plate 12 and will be discharged to the outside through the sewage pipe at the bottom of the filter cartridge 11; it is convenient to clean the dust.

[0025] A high temperature resistant coating is provided on the inner wall of the filter cartridge 11 ; through the above arrangement, the high temperature resistance effect of the filter cartridge 11 is improved, and the service life of the filter cartridge 11 is increased.

[0026] Embodiment 2:

[0027] like Figure 4 On the basis of Example 1, a motor 21, a rotating shaft 22, a brush 23, a sleeve 24 and a lifting mechanism are additionally provided. The motor 21 is installed on the bottom plate 1 through the lifting mechanism. The lifting mechanism is used to lift the motor 21. The lower end of the rotating shaft 22 is connected to the motor 21, and the brush 23 is fixedly installed on the upper end of the rotating shaft 22. The brush 23 is located in the chamber of the filter cartridge 11, and the brush 23 is located below the filter plate 12. The rotating shaft 22 is slidably installed on the sleeve 24 up and down, and the sleeve 24 is rotatably installed on the lower side wall of the filter cartridge 11; when the filter plate 12 is rinsed, the lifting mechanism is opened at the same time, so that the motor 21 drives the rotating shaft 22 to rise, and the rotating shaft 22 causes the brush 23 to rise until the upper end of the brush 23 is tightly attached to the lower end of the filter plate 12, and then the motor 21 is turned on, and the motor 21 rotates the brush 23 through the rotating shaft 22. During the rotation process, the brush 23 brushes off the dust attached to the lower end of the filter plate 12, thereby improving the cleaning effect of the dust on the filter plate 12.

[0028] The lifting mechanism includes a hydraulic cylinder 25 and a push rod 26. The hydraulic cylinder 25 is fixedly mounted on the base plate 1. The lower end of the push rod 26 is connected to the output end of the hydraulic cylinder 25. The motor 21 is fixedly mounted on the upper end of the push rod 26. When cleaning dust on the filter plate 12, the hydraulic cylinder 25 is turned on. The hydraulic cylinder 25 raises the motor 21 through the push rod 26. The motor 21 raises the brush 23 through the rotating shaft 22, so that the upper end of the brush 23 can be brought into contact with the filter plate 12. This facilitates the adjustment of the height of the brush 23 and facilitates the cleaning of dust on the filter plate 12.

[0029] Embodiment 3:

[0030] As the instruction manual Figure 6 On the basis of Example 1, multiple 16 can be replaced by a spiral heat exchange tube, so that the upper and lower ends of the spiral heat exchange tube are connected to the cylinder B and the cylinder A respectively, so that the gas can also achieve heat exchange with the water in the heat exchange cylinder 9 through this spiral ring heat exchange.

[0031] Embodiment 4:

[0032] On the basis of Example 2, the lifting mechanism can also adopt a lifting platform, which is installed on the base plate 1 and the motor 21 is installed on the upper end of the lifting platform. The lifting of the motor 21 can also be achieved through the lifting platform.

[0033] The water pump 4, induced draft fan 6, support frame 10, filter plate 12, heat exchange tube 16, push rod 26, sleeve 24 and hydraulic cylinder 25 of the utility model are all purchased on the market. The technicians in this industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in this field to make creative efforts.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A waste heat power generation structure, characterized in that: The invention comprises a bottom plate (1), a boiler (2), an air outlet pipe (3), a water pump (4), a liquid discharge pipe (5) and a steam turbine generator, wherein the boiler (2) is fixedly mounted on the upper end of the bottom plate (1) via the air outlet pipe (3), the boiler (2) is provided with a heater, the boiler (2) is provided with an air outlet pipe (3), the air outlet pipe (3) is connected to the steam turbine generator, the steam turbine generator is mounted on the bottom plate (1), and the input end of the water pump (4) is connected to the boiler (2) via the liquid discharge pipe (5); the invention is characterized in that the invention further comprises an induced draft fan (6), an air supply pipe (7), a bracket (8), A heat exchange cylinder (9), a filtering mechanism, a heat exchange mechanism and a flushing mechanism, wherein the delivery end of the induced draft fan (6) is connected to the filtering mechanism via an air delivery pipe (7), the filtering mechanism has a filtering function, the heat exchange cylinder (9) is mounted on the upper end of the bottom plate (1) via a bracket (8), a water cavity is provided in the heat exchange cylinder (9), the input end of the water pump (4) is connected to the water cavity of the heat exchange cylinder (9), the heat exchange mechanism is mounted in the water cavity of the heat exchange cylinder (9), the output end of the filtering mechanism is connected to the lower part of the heat exchange mechanism, the heat exchange mechanism has a heat exchange function, and the flushing mechanism is used to flush the heat exchange mechanism.

2. A waste heat power generation structure according to claim 1, characterized in that: The filtering mechanism comprises a support frame (10), a filter cartridge (11), a filter plate (12) and an air supply pipe (13); the filter cartridge (11) is fixedly mounted on the bottom plate (1) via the support frame (10); a filter cavity is arranged in the filter cartridge (11); the filter plate (12) is fixedly mounted in the filter cavity of the filter cartridge (11); a plurality of groups of filter holes are arranged on the filter plate (12); filter cloth is arranged in the filter holes of the filter plate (12); an output end of the air supply pipe (7) is in communication with the filter cavity of the filter cartridge (11); an output end of the air supply pipe (7) is in communication with the bottom of the filter plate (12); a valve is arranged on the air supply pipe (7); an input end of the air supply pipe (13) is in communication with the upper part of the filter cavity of the filter cartridge (11); and an output end of the air supply pipe (13) is in communication with the heat exchange mechanism.

3. A waste heat power generation structure as claimed in claim 2, characterized in that: The heat exchange mechanism comprises a cylinder A (14), a cylinder B (15), a heat exchange tube (16) and a connecting tube (17); the cylinder A (14) is fixedly mounted at the lower part of the water cavity of the heat exchange cylinder (9); the cylinder B (15) is fixedly mounted at the upper part of the water cavity of the heat exchange cylinder (9); the upper and lower ends of the plurality of groups of heat exchange tubes (16) are respectively connected to the cylinder B (15) and the heat exchange tubes (16); the upper end of the connecting tube (17) is connected to the cylinder A (14); the output end of the gas transmission tube (13) is connected to the connecting tube (17); valves are provided on the connecting tube (17) and the gas transmission tube (13); the lower end of the connecting tube (17) is located below the heat exchange cylinder (9); the cylinder B (15) is provided with an exhaust pipe; the output end of the exhaust pipe is located outside the heat exchange cylinder (9); and the exhaust pipe is provided with a valve.

4. A waste heat power generation structure as claimed in claim 3, characterized in that: The flushing mechanism comprises a delivery pump, a water supply pipe (18), a spray pipe A (19) and a spray pipe B (20). The delivery pump is mounted on the bottom plate (1). The output end of the delivery pump is connected to the water supply pipe (18). The input ends of the spray pipe A (19) and the spray pipe B (20) are both in communication with the water supply pipe (18). The spray pipe A (19) and the spray pipe B (20) are both provided with valves. The output end of the spray pipe A (19) is in communication with the cylinder body B (15). The output end of the spray pipe B (20) is located at the upper part of the chamber of the filter cartridge (11). The lower part of the filter cartridge (11) is provided with a sewage discharge pipe in communication with the chamber. The sewage discharge pipe is provided with a valve.

5. A waste heat power generation structure as claimed in claim 2, characterized in that: The invention also comprises a motor (21), a rotating shaft (22), a brush (23), a sleeve (24) and a lifting mechanism. The motor (21) is mounted on the bottom plate (1) via the lifting mechanism. The lifting mechanism is used to lift the motor (21). The lower end of the rotating shaft (22) is connected to the motor (21). The brush (23) is fixedly mounted on the upper end of the rotating shaft (22). The brush (23) is located in the chamber of the filter cartridge (11). The brush (23) is located below the filter plate (12). The rotating shaft (22) is mounted on the sleeve (24) in an upward and downward sliding manner. The sleeve (24) is rotatably mounted on the lower side wall of the filter cartridge (11).

6. A waste heat power generation structure as claimed in claim 5, characterized in that: The lifting mechanism comprises a hydraulic cylinder (25) and a push rod (26); the hydraulic cylinder (25) is fixedly mounted on the base plate (1); the lower end of the push rod (26) is connected to the output end of the hydraulic cylinder (25); and the motor (21) is fixedly mounted on the upper end of the push rod (26).

7. A waste heat power generation structure as claimed in claim 2, characterized in that: A high temperature resistant coating is provided on the inner side wall of the filter cartridge (11).

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