Flue gas waste heat recycling device of cremation machine

Abstract

The utility model provides a flue gas waste heat recycling device of a cremation machine, and relates to the technical field of waste heat recycling of cremation machines. The flue gas waste heat recycling device of the cremation machine comprises a heat exchange box, an exhaust pipe is installed on one side of the heat exchange box, a flow guide assembly is arranged on the side, away from the exhaust pipe, of the heat exchange box, a heat exchange assembly is arranged in the heat exchange box and comprises heat exchange pipes, the heat exchange pipes are installed in the heat exchange box at equal intervals, and the two ends of each heat exchange pipe extend to the outer side of the heat exchange box; a cleaning assembly is further arranged in the heat exchange box. According to the flue gas waste heat recycling device of the cremation machine, the cleaning assembly is arranged in the heat exchange box, the surface of the heat exchange pipe and the inner wall of the heat exchange box can be cleaned rapidly, manual cleaning is not needed, and therefore the cleaning efficiency is improved; and flue gas is controlled to be directly discharged, cleaning operation can be carried out without shutdown, and actual application and operation are facilitated.

Description

Technical Field

[0001] This application relates to the technical field of waste heat recovery of cremators, and specifically to a device for recovering and utilizing the waste heat of the flue gas of a cremator. Background Technique

[0002] A cremator refers to a device used for cremating remains. When a cremator is working, it will generate a large amount of high-temperature flue gas. Directly discharging these flue gases will cause a large amount of energy loss. Therefore, before discharging and treating the flue gas of the cremator, generally, a waste heat recovery and utilization device is needed to recover and utilize its waste heat, use the heat of the flue gas to heat water through a heat exchange tube, so as to avoid wasting energy.

[0003] However, since the flue gas contains a large amount of dust, when recovering and utilizing the waste heat, the dust will adhere to the heat exchange tube. After long-term use, a large amount of dust adheres to the heat exchange tube, which will affect the heat exchange efficiency of the heat exchange tube. Therefore, it is necessary to regularly clean the surface of the heat exchange tube. However, the existing waste heat recovery and utilization device does not have a device for cleaning the surface of the heat exchange tube inside, so manual cleaning is required, which is inconvenient to operate. At the same time, when the traditional waste heat recovery and utilization device for the flue gas of a cremator is in use, since there is only one smoke exhaust channel, when cleaning the surface of the heat exchange tube, the machine must be stopped to perform the cleaning operation and the smoke exhaust cannot continue, which is not conducive to actual application and operation.

[0004] Therefore, those skilled in the art provide a device for recovering and utilizing the waste heat of the flue gas of a cremator to solve the problems raised in the above background technique. Utility Model Content

[0005] In view of the deficiencies of the prior art, this application provides a device for recovering and utilizing the waste heat of the flue gas of a cremator, which solves the problems of inconvenient cleaning of the surface of the heat exchange tube and inability to perform cleaning without stopping the machine mentioned in the above background technique.

[0006] To achieve the above objectives, this application is realized through the following technical solutions: A device for recovering and utilizing the waste heat of the flue gas of a cremator includes a heat exchange box. One side of the heat exchange box is equipped with an exhaust pipe. A diversion component is arranged on the side of the heat exchange box away from the exhaust pipe. A heat exchange component is arranged inside the heat exchange box. The heat exchange component includes heat exchange tubes. The heat exchange tubes are equidistantly installed inside the heat exchange box and both ends extend to the outside of the heat exchange box. A cleaning component is also arranged inside the heat exchange box;

[0007] The diversion component is used to divert the flue gas of the cremator entering the inside of the heat exchange box. The heat exchange component is used to exchange heat with the flue gas of the cremator entering the inside of the heat exchange box. The cleaning component is used to clean the inner wall of the heat exchange box and the surface of the heat exchange tubes.

[0008] Through the above technical solution, a cleaning component is arranged inside the heat exchanger box, which can quickly clean the surface of the heat exchange tube and the inner wall of the heat exchanger box without manual cleaning, thereby improving the cleaning efficiency. At the same time, by arranging a guide component at one end of the heat exchanger box, when cleaning is required, the flue gas can be controlled to be discharged directly without stopping the machine for cleaning operations, which is beneficial to practical application and operation.

[0009] Preferably, the flow guide assembly includes a U-shaped tube, an air intake pipe and two valves, the U-shaped tube is installed on a side of the heat exchange box away from the exhaust pipe, one end of the U-shaped tube is connected to the interior of the heat exchange box, the air intake pipe is installed in the middle of the U-shaped tube and is connected to the interior of the U-shaped tube, and the two valves are respectively installed on both ends of the U-shaped tube.

[0010] Through the above technical scheme, when it is necessary to clean the inner wall of the heat exchange box and the surface of the heat exchange tube inside it, the valve at the end of the U-shaped tube close to the heat exchange box can be closed, and the valve at the end of the U-shaped tube away from the heat exchange box can be opened at the same time, so that the cremator can work normally, and the flue gas generated by the cremator can be directly introduced into the external flue gas treatment equipment for purification, without stopping the machine for cleaning operations, thereby ensuring the normal operation of the cremator while cleaning the heat exchange tubes.

[0011] Preferably, the heat exchange assembly also includes a water inlet pipe, a drain pipe and a water pump, the water inlet pipe is installed between one end of the heat exchange tube, the drain pipe is installed between one end of the heat exchange tube away from the water inlet pipe, the water inlet pipe and the drain pipe are both arranged on the outside of the heat exchange box, the water pump is installed on the top of the heat exchange box, and the output end of the water pump is fixedly connected to the top of the water inlet pipe.

[0012] Through the above technical solution, the water inside the water inlet pipe is diverted by using the heat exchange pipe, so as to better perform the heat exchange operation, and the water inside the heat exchange pipe can be collected and aggregated by using the drainage pipe.

[0013] Preferably, the cleaning assembly includes a cleaning rack, a through hole, four connecting rods, a movable frame and two cylinders, the cleaning rack is slidably connected inside the heat exchanger box, the through holes are equidistantly arranged inside the cleaning rack, wire brushes are arranged inside the through holes, the heat exchange tubes pass through the corresponding through holes, the four connecting rods are respectively installed on the four corners of the cleaning rack, the ends of the connecting rods away from the cleaning rack extend to the outside of the heat exchanger box and are slidably connected to the heat exchanger box, the movable frame is fixed between the ends of the four connecting rods away from the cleaning rack and is located on the outside of the heat exchanger box, the two cylinders are respectively installed on the two ends of the top of the heat exchanger box, the output ends of the cylinders are fixedly connected to the top of the movable frame, and a sealing gasket is installed on the side of the movable frame close to the heat exchanger box.

[0014] Through the above technical solution, by moving the cleaning rack, the through hole can be driven to move outside the heat exchange tube, and the wire brush inside the through hole is used to clean the dust on the surface of the heat exchange tube.

[0015] Preferably, a sealing door is rotatably connected inside the moving frame on the outer side of the heat exchange box.

[0016] Through the above technical solution, the heat exchange box can be sealed by using the sealing door, and at the same time, the sealing door is opened to facilitate the cleaning of the dust inside the heat exchange box.

[0017] Preferably, both the cylinder and the water pump are electrically connected to an external control device.

[0018] Through the above technical solution, the external control device can better control the operation of the cylinder and the water pump.

[0019] The present application provides a device for recovering and utilizing the waste heat of the flue gas of a cremator, and has the following beneficial effects:

[0020] 1. For the device for recovering and utilizing the waste heat of the flue gas of the cremator, by arranging a cleaning component inside the heat exchange box, the surface of the heat exchange tube and the inner wall of the heat exchange box can be quickly cleaned, without manual cleaning, thereby improving the cleaning efficiency;

[0021] 2. For the device for recovering and utilizing the waste heat of the flue gas of the cremator, by arranging a diversion component at one end of the heat exchange box, when cleaning is required, the flue gas can be directly discharged by control, without stopping the machine for cleaning operation, which is beneficial to practical application and operation. Description of the Drawings

[0022] Figure 1 is the first - perspective three - dimensional structure schematic diagram of the present application;

[0023] Figure 2 is the second - perspective three - dimensional structure schematic diagram of the present application;

[0024] Figure 3 is the first - perspective internal sectional structure schematic diagram of the present application;

[0025] Figure 4 is the second - perspective internal sectional structure schematic diagram of the present application;

[0026] Figure 5 is the structure schematic diagram of the heat exchange component and the cleaning component of the present application;

[0027] Figure 6 is the disassembled structure schematic diagram of the heat exchange component and the cleaning component of the present application.

[0028] In the figure: 1, heat exchange box; 2, exhaust pipe; 3, U-shaped pipe; 4, intake pipe; 5, valve; 6, heat exchange tube; 7, water inlet pipe; 8, drain pipe; 9, water pump; 10, cleaning rack; 11, through hole; 12, connecting rod; 13, moving frame; 14, cylinder; 15, sealing door. Specific implementation manner

[0029] The present application will be further elaborated in detail below with reference to the accompanying drawings and embodiments.

[0030] Refer to Figure 1 , Figure 2 and Figure 3 , an apparatus for recovering and utilizing the waste heat of the flue gas of a cremator provided by an embodiment of the present application includes a heat exchange box 1. A sealing door 15 is rotatably connected to the outside of the heat exchange box 1. The heat exchange box 1 can be sealed by using the sealing door 15, and at the same time, the sealing door 15 is opened to facilitate the cleaning of the dust inside the heat exchange box 1. An exhaust pipe 2 is installed on one side of the heat exchange box 1. One end of the exhaust pipe 2 away from the heat exchange box 1 is connected to the input end of an external flue gas treatment device, which is convenient for introducing the flue gas after heat exchange into the external flue gas treatment device for purification treatment. A flow guiding component is arranged on the side of the heat exchange box 1 away from the exhaust pipe 2. A heat exchange component is arranged inside the heat exchange box 1. The heat exchange component includes heat exchange tubes 6. The heat exchange tubes 6 are equidistantly installed inside the heat exchange box 1 and both ends extend to the outside of the heat exchange box 1. A cleaning component is also arranged inside the heat exchange box 1. The flow guiding component is used for guiding the flue gas of the cremator entering the heat exchange box 1, the heat exchange component is used for exchanging heat of the flue gas of the cremator entering the heat exchange box 1, and the cleaning component is used for cleaning the inner wall of the heat exchange box 1 and the surface of the heat exchange tubes 6. By arranging a cleaning component inside the heat exchange box 1, the surface of the heat exchange tubes 6 and the inner wall of the heat exchange box 1 can be quickly cleaned without manual cleaning, thereby improving the cleaning efficiency. At the same time, by arranging a flow guiding component at one end of the heat exchange box 1, when cleaning is required, the flue gas can be directly discharged, and there is no need to stop the machine for cleaning operations, which is beneficial to actual application and operation.

[0031] Refer to Figure 2 and Figure 3In one aspect of the present embodiment, the flow guide assembly includes a U-shaped tube 3, an air intake pipe 4 and two valves 5. The U-shaped tube 3 is installed on the side of the heat exchange box 1 away from the exhaust pipe 2. One end of the U-shaped tube 3 is connected to the interior of the heat exchange box 1, and the end of the U-shaped tube 3 away from the heat exchange box 1 is connected to the input end of the external flue gas treatment equipment, so as to facilitate the direct discharge of flue gas into the interior of the external flue gas treatment equipment for purification. The air intake pipe 4 is installed in the middle of the U-shaped tube 3 and is connected to the interior of the U-shaped tube 3. The air intake pipe 4 is used to facilitate the passage of flue gas discharged from the crematorium into the interior of the U-shaped tube 3. The two valves 5 are respectively installed at the two ends of the U-shaped tube 3, and the valves 5 can be used to control the opening and closing of the two ends of the U-shaped tube 3. When it is necessary to clean the inner wall of the heat exchange box 1 and the surface of the heat exchange tube 6 inside it, the valve 5 at the end of the U-shaped tube 3 close to the heat exchange box 1 can be closed, and the valve 5 at the end of the U-shaped tube 3 away from the heat exchange box 1 can be opened at the same time, so that the cremator can work normally, and the flue gas generated by the cremator can be directly introduced into the external flue gas treatment equipment for purification, without stopping the machine for cleaning operations, thereby ensuring the normal operation of the cremator while cleaning the heat exchange tube 6.

[0032] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 In one aspect of this embodiment, the heat exchange assembly further includes a water inlet pipe 7, a drain pipe 8 and a water pump 9. The water inlet pipe 7 is installed between one end of the heat exchange pipe 6, and the drain pipe 8 is installed between one end of the heat exchange pipe 6 away from the water inlet pipe 7. The water inlet pipe 7 and the drain pipe 8 are both arranged outside the heat exchange box 1. The heat exchange pipe 6 is used to divert the water inside the water inlet pipe 7, so as to better perform the heat exchange operation. At the same time, the drain pipe 8 can collect and aggregate the water inside the heat exchange pipe 6. One end of the drain pipe 8 is connected to the external insulation water tank, and the water pump 9 is installed on the top of the heat exchange box 1. The output end of the water pump 9 is fixedly connected to the top of the water inlet pipe 7, and the input end of the water pump 9 is connected to the external insulation water tank. The water in the external insulation water tank is transported to the inside of the water inlet pipe 7 by the water pump 9, flows through a plurality of heat exchange pipes 6 for heat exchange, and the water after heat exchange flows back to the inside of the external insulation water tank through the drain pipe 8 for insulation storage.

[0033] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6, in one aspect of this embodiment, the cleaning component includes a cleaning frame 10, through holes 11, four connecting rods 12, a moving frame 13, and two cylinders 14. The cleaning frame 10 is slidably connected inside the heat exchange box 1. The through holes 11 are equidistantly opened inside the cleaning frame 10, and wire brushes are arranged inside the through holes 11. The heat exchange tubes 6 all pass through the corresponding through holes 11. By moving the cleaning frame 10, the through holes 11 can be driven to move outside the heat exchange tubes 6, and the wire brushes inside the through holes 11 are used to clean the dust on the surface of the heat exchange tubes 6. The four connecting rods 12 are respectively installed at the four corners of the cleaning frame 10. One ends of the connecting rods 12 far from the cleaning frame 10 all extend outside the heat exchange box 1 and are slidably connected to the heat exchange box 1. The moving frame 13 is fixed between the one ends of the four connecting rods 12 far from the cleaning frame 10 and is located outside the heat exchange box 1. By moving the moving frame 13, the cleaning frame 10 can be driven to move inside the heat exchange box 1 in cooperation with the four connecting rods 12. The sealing door 15 is located inside the moving frame 13, so as to avoid the situation that the moving frame 13 affects the opening of the sealing door 15. The two cylinders 14 are respectively installed at both ends of the top of the heat exchange box 1, and the output ends of the cylinders 14 are fixedly connected to the top of the moving frame 13. By the operation of the cylinders 14, the moving frame 13 can be driven to move. A sealing gasket is installed on one side of the moving frame 13 close to the heat exchange box 1. The sealing gasket can be used to seal the holes opened outside the heat exchange box 1 for the use of the connecting rods 12, so as to prevent the flue gas from flowing out through the gap between the connecting rods 12 and the heat exchange box 1. The cylinders 14 and the water pump 9 are both electrically connected to an external control device, and the external control device can be used to better control the operation of the cylinders 14 and the water pump 9.

[0034] Working principle:

[0035] During use, first connect the intake pipe 4 to the flue gas discharge pipe of the cremator, and connect the exhaust pipe 2 and the one ends of the U-shaped pipes 3 far from the heat exchange box 1 to the input end of an external flue gas treatment device. Then connect the input end of the water pump 9 to an external heat preservation water tank, and connect one end of the drain pipe 8 to the external heat preservation water tank. At the same time, electrically connect the cylinders 14 and the water pump 9 to an external control device and power on the device;

[0036] When performing heat exchange operation, the valve 5 at the end of the U-shaped pipe 3 close to the heat exchange box 1 can be opened, and at the same time, the valve 5 at the end of the U-shaped pipe 3 far from the heat exchange box 1 can be closed. Then the flue gas generated by the cremator enters the inside of the U-shaped pipe 3 through the intake pipe 4 and enters the inside of the heat exchange box 1, and then is discharged through the exhaust pipe 2;

[0037] Meanwhile, use the water pump 9 to transport the water in the external heat preservation water tank into the inside of the intake pipe 7, flow through the plurality of heat exchange tubes 6 for heat exchange, and the water after heat exchange flows back into the external heat preservation water tank through the drain pipe 8 for heat preservation storage;

[0038] When it is necessary to clean the inner wall of the heat exchange box 1 and the surface of the heat exchange tubes 6 inside it, the valve 5 at the end of the U-shaped tube 3 close to the heat exchange box 1 can be closed, and at the same time, the valve 5 at the end of the U-shaped tube 3 far from the heat exchange box 1 can be opened, so that the cremator can work normally. The flue gas generated by the cremator can be directly introduced into the external flue gas treatment equipment for purification treatment, without the need to stop the machine for cleaning operations. Thus, while cleaning the heat exchange tubes 6, the normal operation of the cremator is ensured;

[0039] At the same time, by the operation of the cylinder 14, the moving frame 13 is driven to move. By the movement of the moving frame 13, it can cooperate with the four connecting rods 12 to drive the cleaning frame 10 to move inside the heat exchange box 1. By the movement of the cleaning frame 10, the through holes 11 can be driven to move outside the heat exchange tubes 6. The dust on the surface of the heat exchange tubes 6 is cleaned by the wire brushes inside the through holes 11. At the same time, the dust on the inner wall of the heat exchange box 1 can be scraped off by the cleaning frame 10. Finally, by opening the sealing door 15, the dust can be cleaned, which is convenient and fast.

[0040] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for recovering waste heat from smoke from a cremator, comprising a heat exchange box (1), characterized in that: An exhaust pipe (2) is installed on one side of the heat exchange box (1), a flow guide component is provided on the side of the heat exchange box (1) away from the exhaust pipe (2), a heat exchange component is provided inside the heat exchange box (1), the heat exchange component comprises a heat exchange tube (6), the heat exchange tube (6) is installed equidistantly inside the heat exchange box (1) and both ends extend to the outside of the heat exchange box (1), and a cleaning component is also provided inside the heat exchange box (1); The flow guide component is used to guide the smoke from the cremator entering the heat exchange box (1), the heat exchange component is used to exchange heat with the smoke from the cremator entering the heat exchange box (1), and the cleaning component is used to clean the inner wall of the heat exchange box (1) and the surface of the heat exchange tube (6).

2. The device for recovering waste heat from smoke from a crematorium according to claim 1, characterized in that: The flow guide assembly comprises a U-shaped tube (3), an air intake pipe (4) and two valves (5); the U-shaped tube (3) is mounted on a side of the heat exchange box (1) away from the exhaust pipe (2); one end of the U-shaped tube (3) is in communication with the interior of the heat exchange box (1); the air intake pipe (4) is mounted in the middle of the U-shaped tube (3) and is in communication with the interior of the U-shaped tube (3); and the two valves (5) are respectively mounted on the two ends of the U-shaped tube (3).

3. The device for recovering waste heat from smoke from a crematorium according to claim 1, characterized in that: The heat exchange assembly further comprises a water inlet pipe (7), a drain pipe (8) and a water pump (9); the water inlet pipe (7) is installed between one end of the heat exchange pipe (6); the drain pipe (8) is installed between one end of the heat exchange pipe (6) away from the water inlet pipe (7); the water inlet pipe (7) and the drain pipe (8) are both arranged outside the heat exchange box (1); the water pump (9) is installed on the top of the heat exchange box (1); and the output end of the water pump (9) is fixedly connected to the top of the water inlet pipe (7).

4. The device for recovering waste heat from smoke from a cremator according to claim 3 is characterized in that: The cleaning assembly comprises a cleaning frame (10), a through hole (11), four connecting rods (12), a moving frame (13) and two cylinders (14); the cleaning frame (10) is slidably connected inside the heat exchange box (1); the through holes (11) are equidistantly arranged inside the cleaning frame (10); a wire brush is arranged inside each of the through holes (11); the heat exchange tubes (6) pass through the corresponding through holes (11); the four connecting rods (12) are respectively mounted on the four corners of the cleaning frame (10); and the connecting rods (13) are arranged on the four corners of the cleaning frame (10). The ends of the four connecting rods (12) away from the cleaning rack (10) extend to the outside of the heat exchange box (1) and are slidably connected to the heat exchange box (1); the movable frame (13) is fixed between the ends of the four connecting rods (12) away from the cleaning rack (10) and is located outside the heat exchange box (1); the two cylinders (14) are respectively mounted on the two ends of the top of the heat exchange box (1); the output ends of the cylinders (14) are fixedly connected to the top of the movable frame (13); and a sealing gasket is installed on the side of the movable frame (13) close to the heat exchange box (1).

5. The device for recovering waste heat from smoke from a crematorium according to claim 4, characterized in that: A sealing door (15) is rotatably connected to the outside of the heat exchange box (1) and located inside the movable frame (13).

6. The device for recovering waste heat from smoke from a crematorium according to claim 4, characterized in that: The cylinder (14) and the water pump (9) are both electrically connected to external control equipment.

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