Waste heat utilization device for waste incineration power generation

Abstract

The utility model relates to waste heat utilization device technical field, specifically disclose a waste heat utilization device for garbage incineration power generation, including the heat preservation box, the heat preservation box is fixedly connected with the heat exchange box, the heat exchange box is fixedly connected with the baffle of a plurality of groups of each other interlaced in, the both ends of heat exchange box are fixedly connected with the air inlet pipe and the air outlet pipe, the air inlet pipe and the air outlet pipe one end extends to the outside of heat preservation box, install first valve in the air inlet pipe and the air outlet pipe, the outside fixed connection of heat preservation box has the water inlet pipe and the water outlet pipe, install second valve in the water inlet pipe and the water outlet pipe, in the utility model, through the setting of cleaning component, can realize the dirt on the heat exchange box inner wall and baffle, prevent the soot influence heat conductivity, maintain the long -term efficient operation of device. Overall structure design gives consideration to heat exchange efficiency and maintenance convenience, fully realizes the recycling of garbage incineration flue gas waste heat.

Description

Technical Field

[0001] This utility model relates to the technical field of waste heat utilization devices, and in particular to a waste heat utilization device for waste incineration power generation. Background Technology

[0002] In the process of waste-to-energy incineration, the high-temperature flue gas produced contains a large amount of waste heat. Direct emission of this waste not only wastes energy but also exacerbates thermal pollution. Waste-to-energy waste heat recovery devices can convert the waste heat in the flue gas into hot water for production, domestic use, or auxiliary power generation. This improves energy efficiency and reduces carbon emissions, meeting the development needs of energy conservation and environmental protection. Therefore, it has become an indispensable key device in waste-to-energy incineration systems.

[0003] However, existing waste heat recovery devices for waste incineration power generation have significant limitations. Because the flue gas contains a large amount of soot, dust, and corrosive impurities, after long-term operation, thick layers of dirt easily accumulate on the inner walls of the heat exchanger and the surfaces of the heat exchange components. This dirt severely affects heat transfer efficiency, leading to a significant decrease in waste heat recovery. However, the heat exchangers in existing devices are mostly enclosed structures, lacking dedicated cleaning components. Cleaning requires stopping the machine and disassembling the equipment, which is not only cumbersome but also time-consuming. Utility Model Content

[0004] To address the technical problem of inconvenient cleaning in existing waste incineration power generation waste heat recovery devices, this utility model provides a waste incineration power generation waste heat recovery device.

[0005] The technical solution adopted by this utility model is: a waste heat utilization device for waste incineration power generation, including an insulated box, a heat exchange box fixedly connected inside the insulated box, a plurality of interlocking baffles fixedly connected inside the heat exchange box, an air inlet pipe and an air outlet pipe fixedly connected to both ends of the heat exchange box respectively, one end of the air inlet pipe and the air outlet pipe extending to the outside of the insulated box, a first valve installed in the air inlet pipe and the air outlet pipe, a water inlet pipe and a water outlet pipe fixedly connected to the outside of the insulated box, a second valve installed in both the water inlet pipe and the water outlet pipe, and a cleaning component for cleaning the heat exchange box is also provided inside the heat exchange box.

[0006] A further feature of this invention is that a cleaning pipe is fixedly connected to the outside of the water inlet pipe, one end of the cleaning pipe extends into the heat exchange box, and a third valve is installed in the cleaning pipe.

[0007] A further feature of this invention is that a drain pipe is fixedly connected to the bottom of the heat exchange box, one end of the drain pipe extends to the outside of the insulation box, and a fourth valve is installed in the drain pipe.

[0008] A further feature of this invention is that the cleaning component comprises multiple sets of rubber scrapers disposed within the heat exchange chamber. The rubber scrapers abut against the inner wall and baffles of the heat exchange chamber. Fixed brackets are fixedly connected to both sides of the top of the insulation chamber. A guide rod is fixedly connected to the outside of one of the fixed brackets, and a reciprocating screw is rotatably connected to the outside of the other fixed bracket. A motor is fixedly connected to the top of the fixed bracket, and the output end of the motor is fixedly connected to the reciprocating screw. A nut block is threaded onto the outside of the reciprocating screw. A synchronization plate is provided on the top of the insulation chamber, and the synchronization plate is fixedly connected to the nut block. Multiple sets of sliding rods are fixedly connected to the bottom of the synchronization plate, and one end of each sliding rod passes through the insulation chamber and the heat exchange chamber before being fixedly connected to the rubber scraper.

[0009] A further feature of this invention is that multiple sets of guide sleeves are fixedly connected to the top of the heat exchange box, one end of each guide sleeve penetrates the heat exchange box, and the guide sleeve is fitted over the outside of the slide rod.

[0010] The present invention is further configured such that multiple sets of baffles form a curved channel, and the heat exchange box is a cuboid cavity structure.

[0011] A further feature of this invention is that both the heat exchange box and the baffle are made of thermally conductive materials, and the heat exchange box is fixedly connected to the insulation box by a bracket.

[0012] The beneficial effects of this invention are as follows: By incorporating cleaning components, dirt on the inner wall and baffles of the heat exchanger can be effectively removed, preventing ash accumulation from affecting thermal conductivity and maintaining long-term efficient operation of the device. The overall structural design balances heat exchange efficiency with ease of maintenance, fully realizing the recovery and utilization of waste heat from waste incineration flue gas. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the insulation box in this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the insulation box in this utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the heat exchange box in this utility model;

[0017] Figure 5 This is a schematic diagram of the main structure of this utility model.

[0018] The diagram is marked as follows:

[0019] 1. Insulated box; 2. Air inlet pipe; 3. Heat exchanger box; 4. First valve; 5. Air outlet pipe; 6. Baffle; 7. Drain pipe; 8. Water inlet pipe; 9. Second valve; 10. Cleaning pipe; 11. Third valve; 12. Rubber scraper; 13. Guide sleeve; 14. Slide rod; 15. Synchronizing plate; 16. Fixing frame; 17. Guide rod; 18. Motor; 19. Reciprocating screw; 20. Nut block; 21. Fourth valve. Detailed Implementation

[0020] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] The following is in conjunction with the appendix Figure 1-5 The present invention will be further described below.

[0022] To address the problems existing in the background technology, this application proposes the following technical solution: a waste heat utilization device for waste incineration power generation, comprising an insulated box 1, a heat exchange box 3 fixedly connected inside the insulated box 1, multiple sets of interlocking baffles 6 fixedly connected inside the heat exchange box 3, an inlet pipe 2 and an outlet pipe 5 fixedly connected to both ends of the heat exchange box 3 respectively, one end of the inlet pipe 2 and the outlet pipe 5 extending to the outside of the insulated box 1, a first valve 4 installed in the inlet pipe 2 and the outlet pipe 5, and an inlet valve 4 fixedly connected to the outside of the insulated box 1. Second valves 9 are installed in both the water pipe 8 and the outlet pipe, and in both the inlet pipe 8 and the outlet pipe. Multiple sets of baffles 6 form curved channels. The heat exchange box 3 is a rectangular hollow structure. Both the heat exchange box 3 and the baffles 6 are made of thermally conductive materials. The heat exchange box 3 is fixedly connected to the insulation box 1 by a bracket. The heat exchange box 3 is also equipped with a cleaning component for cleaning the heat exchange box 3. The insulation box 1, as the outer structure of the entire device, can effectively reduce internal heat loss, improve waste heat utilization efficiency, and provide a stable insulation environment for the heat exchange process. The heat exchange box 3 inside is the core area for waste heat exchange. It is made of thermally conductive materials to quickly conduct heat from the flue gas. The interlaced baffles 6 inside the heat exchange box 3 form curved channels, which can prolong the flow path and residence time of the flue gas in the box, allowing the flue gas to fully contact the heat exchange box 3 and the baffles 6, increasing the heat exchange area and duration, and improving the waste heat recovery efficiency.

[0023] The inlet pipe 2 and outlet pipe 5 are responsible for the input and output of flue gas, respectively. The first valve 4 on the pipeline controls the flow of flue gas, facilitating the start-up, shutdown, and maintenance of the unit. The water inlet pipe 8 and outlet pipe outside the insulation box 1 are used for the inlet and outlet of water. The second valve 9 can precisely control the water flow and on / off state, ensuring that hot water after heat exchange is supplied as needed. The heat exchange box 3 is fixed inside the insulation box 1 by a bracket to avoid direct contact with the insulation box 1, reduce heat loss, and ensure structural stability. The cleaning component can periodically clean the dirt on the inner wall of the heat exchange box 3 and the baffle 6 to prevent ash accumulation from affecting the thermal conductivity and maintain the long-term efficient operation of the unit. The overall structural design takes into account both heat exchange efficiency and ease of maintenance, fully realizing the recovery and utilization of waste heat from waste incineration flue gas.

[0024] In this embodiment, a cleaning pipe 10 is fixedly connected to the outside of the water inlet pipe 8. One end of the cleaning pipe 10 extends into the heat exchange chamber 3, and a third valve 11 is installed in the cleaning pipe 10. A drain pipe 7 is fixedly connected to the bottom of the heat exchange chamber 3. One end of the drain pipe 7 extends to the outside of the insulation chamber 1, and a fourth valve 21 is installed in the drain pipe 7. The cleaning pipe 10 outside the water inlet pipe 8 provides a water source channel for cleaning the heat exchange chamber 3. One end of the cleaning pipe extends into the heat exchange chamber 3, allowing cleaning water to be directly injected into the chamber. The third valve 11 on the cleaning pipe 10 can independently control the flow of cleaning water, preventing the cleaning process from affecting the normal heat exchange water supply system.

[0025] The drain pipe 7 at the bottom of the heat exchanger housing 3 is used to discharge the cleaned wastewater, ensuring that dirt is completely removed from the device and preventing secondary pollution. The fourth valve 21 on the drain pipe 7 controls the timing of wastewater discharge, facilitating centralized wastewater treatment. This independent cleaning water circulation system allows the device to be cleaned internally without disassembly, simplifying operation and saving maintenance time. Simultaneously, the cleaning water comes from the inlet pipe 8, eliminating the need for an additional water source, simplifying the device structure, and reducing operating costs. Regular cleaning effectively removes soot, impurities, and other dirt from the heat exchanger housing 3, maintaining good thermal conductivity of the heat exchanger housing 3 and baffle 6, and ensuring long-term stable waste heat utilization efficiency.

[0026] In this embodiment, the cleaning component consists of multiple sets of rubber scrapers 12 installed inside the heat exchange chamber 3. The rubber scrapers 12 abut against the inner wall of the heat exchange chamber 3 and the baffle 6. Fixing frames 16 are fixedly connected to both sides of the top of the insulation chamber 1. One fixing frame 16 has a guide rod 17 fixedly connected to its exterior, and the other fixing frame 16 has a reciprocating screw 19 rotatably connected to its exterior. A motor 18 is fixedly connected to the top of the fixing frame 16, and the output end of the motor 18 is fixedly connected to the reciprocating screw 19. A nut block 20 is threaded onto the exterior of the reciprocating screw 19. A synchronization plate 15 is provided on the top of the insulation chamber 1. Step plate 15 is fixedly connected to nut block 20. Multiple sets of slide rods 14 are fixedly connected to the bottom of synchronous plate 15. One end of slide rod 14 passes through the heat insulation box 1 and heat exchange box 3 and is fixedly connected to rubber scraper 12. Multiple sets of guide sleeves 13 are fixedly connected to the top of heat exchange box 3. One end of guide sleeve 13 passes through the heat insulation box 1 and is sleeved on the outside of slide rod 14. Multiple sets of rubber scrapers 12 in the cleaning component are in close contact with the inner wall of heat exchange box 3 and baffle 6. The rubber material is soft and elastic, which can effectively scrape off dirt without damaging the surface of heat exchange box 3 and baffle 6, thus avoiding affecting the heat conduction performance. The fixed frame 16 on the top of the heat exchange box 1 provides stable support for the reciprocating lead screw 19 and the guide rod 17. The motor 18 drives the reciprocating lead screw 19 to rotate, causing the externally threaded nut block 20 to reciprocate along the lead screw. The nut block 20 drives the synchronous plate 15 to move synchronously, and then drives the rubber scraper 12 to slide back and forth in the heat exchange box 3 through the slide rod 14, so as to achieve comprehensive cleaning of the inner wall of the box and the baffle 6.

[0027] The guide rod 17 guides the synchronous plate 15, preventing it from rotating with the reciprocating screw 19 and ensuring the smooth movement of the rubber scraper 12. The guide sleeve 13 outside the slide rod 14 further enhances the stability of the slide rod 14, while ensuring the sealing of the insulation box 1 and the heat exchange box 3, preventing heat leakage or water leakage. This mechanically driven cleaning method is highly automated, eliminating the need for manual entry into the box for cleaning, reducing maintenance difficulty and safety risks. The reciprocating motion of the rubber scraper 12 can thoroughly remove dirt from dead corners, ensuring full utilization of the heat exchange area and maintaining the efficient heat exchange state of the device.

[0028] The usage method of this embodiment is as follows:

[0029] In use, a portion of the flue gas is transported to the heat exchange box 3 through the air inlet pipe 2. The flue gas flows in the heat exchange box 3, and the heat is transferred to the water in the insulation box 1 through the heat exchange box 3, thereby heating the water. After the water is heated to the set temperature, it is discharged through the drain pipe.

[0030] When cleaning the heat exchange chamber 3 is required, simply close the first valve 4 and the second valve 9, open the third valve 11 to allow the infusion fluid to enter the heat exchange chamber 3, then start the motor 18 to drive the reciprocating screw 19 to rotate. The reciprocating screw 19 drives the nut block 20 to reciprocate, the nut block 20 drives the synchronous plate 15 to reciprocate, the synchronous plate 15 drives the slide rod 14 to slide back and forth, and the slide rod 14 drives the rubber scraper 12 to slide back and forth. The rubber scraper 12 scrapes away the dirt on the inner wall of the heat exchange chamber 3 and the outer wall of the baffle 6. Then open the fourth valve 21 to discharge the wastewater through the heat exchange chamber 3, thus completing the cleaning of the heat exchange chamber 3.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A waste heat recovery device for waste incineration power generation, characterized in that, The device includes an insulated box (1), a heat exchange box (3) is fixedly connected inside the insulated box (1), and multiple sets of intersecting baffles (6) are fixedly connected inside the heat exchange box (3). An air inlet pipe (2) and an air outlet pipe (5) are fixedly connected to both ends of the heat exchange box (3). One end of the air inlet pipe (2) and the air outlet pipe (5) extends to the outside of the insulated box (1). A first valve (4) is installed in the air inlet pipe (2) and the air outlet pipe (5). A water inlet pipe (8) and a water outlet pipe are fixedly connected to the outside of the insulated box (1). A second valve (9) is installed in both the water inlet pipe (8) and the water outlet pipe. A cleaning component for cleaning the heat exchange box (3) is also provided inside the heat exchange box (3).

2. The waste heat recovery device for waste incineration power generation according to claim 1, characterized in that, A cleaning pipe (10) is fixedly connected to the outside of the water inlet pipe (8). One end of the cleaning pipe (10) extends into the heat exchange box (3). A third valve (11) is installed in the cleaning pipe (10).

3. The waste heat recovery device for waste incineration power generation according to claim 2, characterized in that, The bottom of the heat exchange box (3) is fixedly connected to a drain pipe (7), one end of which extends to the outside of the heat insulation box (1), and a fourth valve (21) is installed in the drain pipe (7).

4. The waste heat recovery device for waste incineration power generation according to claim 1, characterized in that, The cleaning component consists of multiple sets of rubber scrapers (12) installed inside the heat exchange box (3). The rubber scrapers (12) abut against the inner wall of the heat exchange box (3) and the baffle (6). The top two sides of the heat insulation box (1) are fixedly connected to a fixing frame (16). One of the fixing frames (16) is fixedly connected to a guide rod (17), and the other fixing frame (16) is rotatably connected to a reciprocating screw (19). The top of the fixing frame (16) is fixedly connected to a motor. 18), the output end of the motor (18) is fixedly connected to the reciprocating lead screw (19), the reciprocating lead screw (19) is externally threaded with a nut block (20), the top of the heat insulation box (1) is provided with a synchronization plate (15), the synchronization plate (15) is fixedly connected to the nut block (20), the bottom of the synchronization plate (15) is fixedly connected with multiple sets of slide rods (14), one end of the slide rod (14) passes through the heat insulation box (1) and the heat exchange box (3) and is fixedly connected to the rubber scraper (12).

5. A waste heat recovery device for waste incineration power generation according to claim 4, characterized in that, The top of the heat exchange box (3) is fixedly connected to multiple sets of guide sleeves (13), one end of the guide sleeve (13) penetrates through the heat insulation box (1), and the guide sleeve (13) is sleeved on the outside of the slide rod (14).

6. The waste heat recovery device for waste incineration power generation according to claim 1, characterized in that, Multiple sets of baffles (6) form curved channels, and the heat exchange box (3) has a cuboid cavity structure.

7. The waste heat recovery device for waste incineration power generation according to claim 1, characterized in that, The heat exchange box (3) and the baffle (6) are both made of thermally conductive materials. The heat exchange box (3) is fixedly connected to the heat insulation box (1) by a bracket.

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