Tail gas waste heat utilization device

Abstract

The utility model discloses a tail gas waste heat utilization device which comprises a heat exchanger, a gas inlet pipe is arranged on one side of the heat exchanger and communicated with an external tail gas pipeline, a first communicating pipe is arranged on the side, away from the gas inlet pipe, of the heat exchanger, and the side, away from the heat exchanger, of the first communicating pipe is connected with a filter box. A second conduction pipe is arranged on the side, away from the first conduction pipe, of the filter box, a UV photolysis device is arranged on the side, away from the filter box, of the second conduction pipe, an exhaust pipe is arranged on the side, away from the second conduction pipe, of the UV photolysis device, and a liquid inlet pipe is arranged on one side of the top end of the heat exchanger. The cleaning device has the beneficial effects that the cleaning assembly is arranged to spray and clean the filtering part in a large range, the cleaning efficiency is improved, meanwhile, the cleaning assembly is mainly driven by a motor, manual operation of personnel is not needed, the cleaning device is more convenient and labor-saving, cleaning water can be recycled by arranging a water collecting tank, a water pump and a filtering frame, resources are saved, and waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas waste heat utilization equipment, in particular to a tail gas waste heat utilization device. Background Art

[0002] At present, the tail gas generated by thermal power plants is directly discharged into the atmosphere after a little treatment, which easily causes the problem of waste of resources and environmental pollution. According to a tail gas waste heat utilization device disclosed in Chinese patent CN202321416521.6, the application includes a heat exchanger and a filter. The heat exchanger includes a first shell, the first shell has a first air inlet and a first air outlet, and a liquid channel is provided in the first shell. The tail gas entering the first shell through the first air inlet can exchange heat with the liquid in the liquid channel; the filter includes a second shell, a filter element and a cleaning device. The second shell has a second air inlet and a second air outlet, the second air inlet is connected to the first air outlet, the filter is arranged in the second shell and between the second air inlet and the second air outlet, the filter is used to filter the exhaust gas entering the second shell, the cleaning device is constructed as a cleaning nozzle, and the cleaning nozzle is used to spray cleaning liquid toward the filter. The exhaust gas waste heat utilization device can take into account the recovery of exhaust gas waste heat and the purification of exhaust gas. The existing exhaust gas waste heat utilization device has a fixed installation of the cleaning nozzle, which cannot fully clean the filter and has low efficiency.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes an exhaust gas waste heat utilization device to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A device for utilizing waste heat from exhaust gas, comprising a heat exchanger, wherein one side of the heat exchanger is provided with an air intake pipe, the air intake pipe is connected to an external exhaust gas pipeline, a side of the heat exchanger away from the air intake pipe is provided with a first conduction pipe, a side of the first conduction pipe away from the heat exchanger is connected to a filter box, a side of the filter box away from the first conduction pipe is provided with a second conduction pipe, a side of the second conduction pipe away from the filter box is provided with a UV photolysis device, a side of the UV photolysis device away from the second conduction pipe is provided with an exhaust pipe, and a top end of the heat exchanger is provided with a first conduction pipe. A liquid inlet pipe is provided on one side, a liquid outlet pipe is provided on the side of the top of the heat exchanger away from the liquid inlet pipe, an inclined filter element is provided in the filter box, a cleaning component is provided on one side of the filter element, a water pump is provided on the top of the filter box, a water collecting box is provided at the bottom of the filter box, the filter box is connected to the water collecting box through a fixing rod, the bottom of the filter box is connected to the water collecting box through a through pipe, the water outlet end of the water pump is connected to the cleaning component through a connecting pipe 1, and the water inlet end of the water pump is connected to the water collecting tank through a connecting pipe 2.

[0007] Preferably, the filter element is connected to the filter box by bolts, and an electromagnetic valve is provided in the through pipe.

[0008] Preferably, a water supply pipe is provided on one side of the water collecting tank, and a filter frame is provided in the water collecting tank.

[0009] Preferably, a sealing cover is provided at the top of the water filling pipe, symmetrically arranged sliding columns are provided on both sides of the filter frame, and a sliding groove matching the sliding columns is provided on the inner wall of the filter box.

[0010] Preferably, the cleaning component includes a partition group provided in the filter box and located on one side of the filter element, a water pipe 1 is provided on the side of the partition group close to the filter element, a water pipe 2 is provided at the bottom end of the water pipe 1, a plurality of evenly distributed nozzles are provided on the outer wall of the water pipe 2, and the top end of the water pipe 1 passes through the partition group and is connected to the connecting pipe 1 through a rotating connector.

[0011] Preferably, a motor is provided on the side of the partition group away from the filter element, the motor is connected to the filter box through a fixed seat, a gear 1 is provided at the driving end of the motor, and a gear 2 meshing with the gear 1 is fixedly sleeved on the outer wall of the water pipe 1.

[0012] Preferably, a motor heat dissipation hole is opened on one side of the filter box.

[0013] Preferably, the water pipe is connected to the group of partitions through a bearing.

[0014] The beneficial effects of the utility model are as follows: by arranging a cleaning component, the filter element can be sprayed and cleaned over a large range, thereby improving its cleaning efficiency; at the same time, the cleaning component is mainly driven by a motor, and does not require manual operation by personnel, which is more convenient and labor-saving; by arranging a water collecting tank, a water pump and a filter frame, clean water can be recycled, thereby saving resources and reducing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of an exhaust gas waste heat utilization device according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic structural diagram from another angle of a tail gas waste heat utilization device according to an embodiment of the utility model;

[0018] Figure 3 This is a front view of an exhaust waste heat utilization device according to an embodiment of the utility model;

[0019] Figure 4 This is a cross-sectional view of a filter box in an exhaust gas waste heat utilization device according to an embodiment of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of a cleaning component in a tail gas waste heat utilization device according to an embodiment of the utility model;

[0021] Figure 6 yes Figure 4 A local enlarged schematic diagram of the middle A;

[0022] Figure 7 It is a schematic diagram of the filter frame structure in an exhaust gas waste heat utilization device according to an embodiment of the utility model.

[0023] In the figure:

[0024] 1. Heat exchanger; 2. Air inlet pipe; 3. Conducting pipe 1; 4. Filter box; 5. Conducting pipe 2; 6. UV photolysis device; 7. Exhaust pipe; 8. Liquid inlet pipe; 9. Liquid outlet pipe; 10. Filter element; 11. Water pump; 12. Water collecting box; 13. Fixing rod; 14. Through pipe; 15. Connecting pipe 1; 16. Connecting pipe 2; 17. Solenoid valve; 18. Water adding pipe; 19. Filter frame; 20. Sliding column; 21. Group partition; 22. Water pipe 1; 23. Water pipe 2; 24. Nozzle; 25. Rotating connector; 26. Motor; 27. Gear 1; 28. Gear 2; 29. ​​Bearing. DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] According to an embodiment of the utility model, a device for utilizing waste heat of exhaust gas is provided.

[0027] Embodiment 1;

[0028] like Figure 1-7 As shown, according to the embodiment of the utility model, the exhaust gas waste heat utilization device includes a heat exchanger 1, an air intake pipe 2 is provided on one side of the heat exchanger 1, the air intake pipe 2 is connected to the external exhaust gas pipeline, a side of the heat exchanger 1 away from the air intake pipe 2 is provided with a conducting pipe 3, a side of the conducting pipe 3 away from the heat exchanger 1 is connected to a filter box 4, a side of the filter box 4 away from the conducting pipe 3 is provided with a conducting pipe 2 5, a side of the conducting pipe 2 5 away from the filter box 4 is provided with a UV photolysis device 6, a side of the UV photolysis device 6 away from the conducting pipe 2 5 is provided with an exhaust pipe 7, and a top of the heat exchanger 1 is provided with a A liquid inlet pipe 8 is provided on the side, a liquid outlet pipe 9 is provided on the side of the top of the heat exchanger 1 away from the liquid inlet pipe 8, an inclined filter element 10 is provided in the filter box 4, a cleaning component is provided on one side of the filter element 10, a water pump 11 is provided on the top of the filter box 4, a water collecting box 12 is provided at the bottom of the filter box 4, the filter box 4 is connected to the water collecting box 12 through a fixing rod 13, the bottom of the filter box 4 is connected to the water collecting box 12 through a through pipe 14, the water outlet end of the water pump 11 is connected to the cleaning component through a connecting pipe 15, and the water inlet end of the water pump 11 is connected to the water collecting box 12 through a connecting pipe 2 16.

[0029] Embodiment 2:

[0030] like Figure 1-7As shown, according to the embodiment of the utility model, the exhaust gas waste heat utilization device includes a heat exchanger 1, an air intake pipe 2 is provided on one side of the heat exchanger 1, the air intake pipe 2 is connected to the external exhaust gas pipeline, a side of the heat exchanger 1 away from the air intake pipe 2 is provided with a conducting pipe 3, a side of the conducting pipe 3 away from the heat exchanger 1 is connected to a filter box 4, a side of the filter box 4 away from the conducting pipe 3 is provided with a conducting pipe 2 5, a side of the conducting pipe 2 5 away from the filter box 4 is provided with a UV photolysis device 6, a side of the UV photolysis device 6 away from the conducting pipe 2 5 is provided with an exhaust pipe 7, and a top of the heat exchanger 1 is provided with a A liquid inlet pipe 8 is provided on the side of the heat exchanger 1, and a liquid outlet pipe 9 is provided on the side of the top of the heat exchanger 1 away from the liquid inlet pipe 8. A filter element 10 is provided in an inclined manner in the filter box 4, and a cleaning component is provided on one side of the filter element 10. A water pump 11 is provided on the top of the filter box 4, and a water collecting box 12 is provided on the bottom of the filter box 4. The filter box 4 is connected to the water collecting box 12 through a fixing rod 13, and the bottom of the filter box 4 is connected to the water collecting box 12 through a through pipe 14. The water outlet of the water pump 11 is connected to the cleaning component through a connecting pipe 15, and the water inlet of the water pump 11 is connected to the water collecting box 12 through a connecting pipe 2 16. The filter element 10 is connected to the filter box 4 by bolts, and a solenoid valve 17 is provided in the through pipe 14. A water supply pipe 18 is provided on one side of the water collecting box 12, and a filter frame 19 is provided in the water collecting box 12. A cover is provided on the top of the water supply pipe 18, and symmetrical sliding columns 20 are provided on both sides of the filter frame 19. A sliding groove matching the sliding column 20 is provided on the inner wall of the filter box 4. When in use, the exhaust pipe is connected to the intake pipe 2, the external water inlet pipe is connected to the liquid inlet pipe 8, and the liquid outlet pipe 9 is connected to the external liquid storage tank. The exhaust gas first enters the heat exchanger 1 through the intake pipe 2 for heat exchange, and then enters the filter box 4 through the connecting pipe 3 to filter dust through the filter element 10. Subsequently, the exhaust gas enters the UV photolysis device through the connecting pipe 2 5 for harmful gas purification, and then is discharged through the exhaust pipe 7. When cleaning the filter element 10, first open the solenoid valve 17 and start the water pump 11. The water pump 11 cooperates with the connecting pipe 15 and the connecting pipe 2 16 to transport the clean water in the water collecting tank 12 to the cleaning component to clean the filter element 10. The used clean water flows back to the water collecting tank 12 through the connecting pipe 14. When the water enters the water collecting tank 12, it is filtered through the filter frame 19. By setting the water collecting tank, the water pump and the filter frame, the clean water can be recycled to save resources and reduce waste.

[0031] Embodiment three;

[0032] like Figure 1-7As shown, according to the embodiment of the utility model, the exhaust gas waste heat utilization device includes a heat exchanger 1, an air intake pipe 2 is provided on one side of the heat exchanger 1, the air intake pipe 2 is connected to the external exhaust gas pipeline, a side of the heat exchanger 1 away from the air intake pipe 2 is provided with a conducting pipe 3, a side of the conducting pipe 3 away from the heat exchanger 1 is connected to a filter box 4, a side of the filter box 4 away from the conducting pipe 3 is provided with a conducting pipe 2 5, a side of the conducting pipe 2 5 away from the filter box 4 is provided with a UV photolysis device 6, a side of the UV photolysis device 6 away from the conducting pipe 2 5 is provided with an exhaust pipe 7, and a top of the heat exchanger 1 is provided with a A liquid inlet pipe 8 is provided on the side of the heat exchanger 1, a liquid outlet pipe 9 is provided on the side of the top of the heat exchanger 1 away from the liquid inlet pipe 8, a filter element 10 is provided in an inclined manner in the filter box 4, a cleaning component is provided on one side of the filter element 10, a water pump 11 is provided on the top of the filter box 4, a water collecting box 12 is provided on the bottom of the filter box 4, the filter box 4 is connected to the water collecting box 12 through a fixing rod 13, the bottom of the filter box 4 is connected to the water collecting box 12 through a through pipe 14, the water outlet of the water pump 11 is connected to the cleaning component through a connecting pipe 15, and the water inlet of the water pump 11 is connected to the water collecting box 12 through a connecting pipe 2 16. The cleaning component includes a partition plate 21 provided in the filter box 4 and located on one side of the filter element 10, a water pipe 1 22 is provided on the side of the partition plate 21 close to the filter element 10, a water pipe 23 is provided at the bottom of the water pipe 1 22, a plurality of uniformly distributed nozzles 24 are provided on the outer wall of the water pipe 2 23, and the top of the water pipe 1 22 passes through the partition plate 21 and is connected to the connecting pipe 1 15 through a rotating connector 25. A motor 26 is provided on the side of the partition plate 21 away from the filter element 10. The motor 26 is connected to the filter box 4 through a fixed seat. A gear 27 is provided at the driving end of the motor 26. A gear 28 meshing with the gear 27 is provided on the outer wall of the water pipe 22. A motor heat dissipation hole is provided on one side of the filter box 4. The water pipe 22 is connected to the partition plate 21 through a bearing 29. When the cleaning component is in use, the motor 26 is first started to drive the gear 27 to rotate. The gear 27 drives the water pipe 22 to rotate through the gear 28. The water pipe 22 drives the water pipe 23 to rotate. The water pipe 23 drives the nozzle 24 to rotate. Then, the water pump 11 is turned on to transport the water in the water collection box 12 to the water pipe 23, and the water is sprayed onto the filter element 10 through the nozzle 24. By setting the cleaning component, the filter element can be sprayed and cleaned in a large range, thereby improving its cleaning efficiency. At the same time, the cleaning component is mainly driven by the motor, and manual operation is not required, which is more convenient and labor-saving.

[0033] In actual application, the exhaust pipe is connected to the intake pipe 2, the external water inlet pipe is connected to the liquid inlet pipe 8, and the liquid outlet pipe 9 is connected to the external liquid storage tank. The exhaust gas first enters the heat exchanger 1 through the intake pipe 2 for heat exchange, and then enters the filter box 4 through the guide pipe 1 3 to filter dust through the filter element 10. Subsequently, the exhaust gas enters the UV photolysis device through the guide pipe 2 5 for harmful gas purification, and then is discharged through the exhaust pipe 7. When cleaning the filter element 10, first open the electromagnetic valve 17 and start the water pump 11. The water pump 11 cooperates with the connecting pipe 1 15 and the connecting pipe 2 16 to transport the clean water in the water collecting tank 12 to the cleaning component to clean the filter element 10. The clean water after use flows back to the water collecting tank 1 through the through pipe 14. 2, when water enters the water collecting tank 12, it is filtered by the filter frame 19. By setting the water collecting tank, water pump and filter frame, clean water can be recycled to save resources and reduce waste; when the cleaning component is in use, first start the motor 26 to drive the gear 1 27 to rotate, the gear 1 27 drives the water pipe 1 22 to rotate through the gear 2 28, the water pipe 1 22 drives the water pipe 2 23 to rotate, the water pipe 2 23 drives the nozzle 24 to rotate, and then start the water pump 11 to transport the water in the water collecting tank 12 to the water pipe 2 23, and spray it onto the filter element 10 through the nozzle 24. By setting the cleaning component, the filter element can be sprayed and cleaned over a large range, thereby improving its cleaning efficiency. At the same time, the cleaning component is mainly driven by a motor, and no manual operation is required, which is more convenient and labor-saving.

[0034] To sum up, with the help of the above-mentioned technical scheme of the utility model, by setting up a cleaning component, the filter element can be sprayed and cleaned over a large range, thereby improving its cleaning efficiency. At the same time, the cleaning component is mainly driven by a motor and does not require manual operation by personnel, which is more convenient and labor-saving. By setting up a water collecting tank, a water pump and a filter frame, the clean water can be recycled, saving resources and reducing waste.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tail gas waste heat utilization device, characterized in that: The invention comprises a heat exchanger (1), wherein an air intake pipe (2) is provided on one side of the heat exchanger (1), wherein the air intake pipe (2) is connected to an external exhaust pipe, wherein a conducting pipe (3) is provided on a side of the heat exchanger (1) away from the air intake pipe (2), wherein a side of the conducting pipe (3) away from the heat exchanger (1) is connected to a filter box (4), wherein a conducting pipe (5) is provided on a side of the filter box (4) away from the conducting pipe (3), wherein a UV photolysis device (6) is provided on a side of the conducting pipe (5) away from the filter box (4), wherein an exhaust pipe (7) is provided on a side of the UV photolysis device (6) away from the conducting pipe (5), wherein a liquid inlet pipe (8) is provided on a top side of the heat exchanger (1), wherein the heat exchanger (1) is provided with a liquid inlet pipe (9), wherein the heat exchanger (1) is provided with a liquid inlet pipe (10), wherein the liquid inlet pipe (11) is provided with a liquid inlet pipe (12), wherein the liquid inlet pipe (12) is provided with a liquid inlet pipe (13), wherein the liquid inlet pipe (12) is provided with a liquid inlet pipe (13), wherein the liquid inlet pipe (12) is provided with a liquid inlet pipe (14), wherein the liquid inlet pipe (13) is provided with a liquid inlet pipe (15), wherein the liquid inlet pipe (12) is provided with a liquid inlet pipe (16), wherein the liquid inlet pipe (12) is provided with a liquid inlet pipe (17), wherein the liquid inlet pipe (13) is provided with a liquid inlet pipe (18), wherein the liquid inlet pipe (12) is provided with a liquid inlet pipe (19), wherein the liquid inlet pipe (12) is provided with a liquid inlet pipe (19), wherein the liquid inlet pipe (12) is provided with a liquid inlet pipe (15), wherein the liquid inlet pipe (12) is provided with a liquid inlet pipe A liquid outlet pipe (9) is provided on the side of the top of the device (1) away from the liquid inlet pipe (8); an inclined filter element (10) is provided in the filter box (4); a cleaning component is provided on one side of the filter element (10); a water pump (11) is provided at the top of the filter box (4); a water collecting box (12) is provided at the bottom of the filter box (4); the filter box (4) is connected to the water collecting box (12) via a fixing rod (13); the bottom of the filter box (4) is connected to the water collecting box (12) via a through pipe (14); the water outlet end of the water pump (11) is connected to the cleaning component via a connecting pipe 1 (15); and the water inlet end of the water pump (11) is connected to the water collecting box (12) via a connecting pipe 2 (16).

2. The exhaust gas waste heat utilization device according to claim 1, characterized in that: The filter element (10) is connected to the filter box (4) via bolts, and an electromagnetic valve (17) is provided in the through pipe (14).

3. The exhaust gas waste heat utilization device according to claim 1, characterized in that: A water supply pipe (18) is provided on one side of the water collecting box (12), and a filter frame (19) is provided in the water collecting box (12).

4. The exhaust gas waste heat utilization device according to claim 3, characterized in that: A sealing cover is provided at the top of the water supply pipe (18), symmetrically arranged sliding columns (20) are provided on both sides of the filter frame (19), and a sliding groove matching the sliding columns (20) is provided on the inner wall of the filter box (4).

5. The exhaust gas waste heat utilization device according to claim 1, characterized in that: The cleaning assembly comprises a partition plate (21) disposed in the filter box (4) and located on one side of the filter element (10); a water pipe (22) is disposed on the side of the partition plate (21) close to the filter element (10); a water pipe (23) is disposed at the bottom end of the water pipe (22); a plurality of evenly distributed nozzles (24) are disposed on the outer wall of the water pipe (23); the top end of the water pipe (22) passes through the partition plate (21) and is connected to the connecting pipe (15) via a rotating connector (25).

6. The exhaust gas waste heat utilization device according to claim 5, characterized in that: A motor (26) is provided on the side of the partition plate (21) away from the filter element (10); the motor (26) is connected to the filter box (4) via a fixed seat; a gear 1 (27) is provided at the driving end of the motor (26); and a gear 2 (28) meshing with the gear 1 (27) is fixedly sleeved on the outer wall of the water pipe 1 (22).

7. The exhaust gas waste heat utilization device according to claim 6, characterized in that: A motor heat dissipation hole is provided on one side of the filter box (4).

8. The exhaust gas waste heat utilization device according to claim 5, characterized in that: The water pipe 1 (22) is connected to the group of partition plates (21) through a bearing (29).

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