Waste incineration waste heat recovery cogeneration system

Abstract

This invention discloses a waste incineration waste heat recovery cogeneration system, relating to the field of waste incineration technology. It includes an incinerator and a waste heat recovery interconnection pipe. A high-temperature exhaust gas inlet pipe is fixedly connected to one side of the waste heat recovery interconnection pipe. The bottom of the high-temperature exhaust gas inlet pipe is fixedly connected to the top of the incinerator via an exhaust gas outlet. A support member is fixedly connected to the bottom of the waste heat recovery interconnection pipe, and the bottom of the support member is fixedly connected to the incinerator. A first rotating ring drives a heat exchanger to slowly rotate within the inner wall of the waste heat recovery interconnection pipe, making the contact between the flue gas at various locations and the heat exchanger more uniform, thus enhancing heat exchange efficiency. This avoids localized overheating or insufficient heat exchange, and also prevents thermal stress damage caused by uneven temperatures of the high-temperature flue gas at different locations and uneven heat exchange during heat exchange, further improving the system's stability and service life.

Description

Technical Field

[0001] This invention relates to the field of waste incineration technology, specifically to a waste incineration waste heat recovery cogeneration system. Background Technology

[0002] Waste incineration is a process in which waste is reduced in volume through appropriate thermal decomposition, combustion, and melting reactions at high temperatures, becoming residue or molten solid matter. Waste incineration facilities must be equipped with flue gas treatment facilities to prevent heavy metals, organic pollutants, and other contaminants from being released back into the environment. Recovering the heat generated from waste incineration can achieve the goal of waste resource utilization.

[0003] A waste heat and power (CHP) system, as described in patent application CN205137475U, includes a waste incinerator, a waste heat recovery device, and a non-electric air conditioner. The waste incinerator comprises a furnace body, internally divided into a filtration chamber and a combustion chamber from top to bottom. The combustion chamber is equipped with a waste combustion support plate. Multiple gas nozzles are installed on the inner wall of the furnace body. Ventilation openings are located on the bottom side wall of the combustion chamber and are connected to a blower. The filtration chamber contains a filtration device, including parallel activated carbon filter plates and ceramic filter plates, with the activated carbon filter plate positioned above the ceramic filter plate. A high-temperature flue gas outlet is located at the top of the furnace body, connected via a pipe to the waste heat recovery device, which is connected to the non-electric air conditioner. By utilizing the high-temperature flue gas generated from waste incineration as the power source for the air conditioner, the system organically combines waste incineration and non-electric air conditioning, effectively reducing environmental pollution and saving energy.

[0004] In existing waste incineration processes, the combustion of waste in incinerators generates a large amount of high-temperature steam and flue gas, which contain considerable waste heat energy. However, currently widely used waste heat recovery systems have many problems, seriously affecting the overall energy utilization efficiency and system stability.

[0005] On the one hand, traditional waste heat recovery devices mostly adopt fixed heat exchange structures. When high-temperature flue gas flows through the heat exchanger, due to the relatively fixed flow path, it is very easy for some areas of the heat exchanger to have excessively concentrated contact with the flue gas, while other areas have insufficient contact. This leads to frequent local overheating, which not only reduces heat exchange efficiency and prevents a large amount of waste heat from being effectively recovered and utilized, but also causes severe thermal stress damage to the heat exchanger under long-term high temperature difference conditions, greatly shortening the service life of the equipment and increasing maintenance and replacement costs.

[0006] On the other hand, impurities such as dust contained in high-temperature flue gas are likely to accumulate on the surface of the heat exchanger to form ash deposits in traditional fixed heat exchange structures. The ash deposits will gradually cover the heat transfer surface, hinder heat transfer, reduce the heat transfer performance, cause the exhaust gas temperature to be unstable and difficult to be controlled within a reasonable range, and further weaken the comprehensive energy utilization efficiency. At the same time, the ash deposit problem will also affect the long-term stable operation of the system, and frequent shutdown cleaning is required, increasing the operating cost and shutdown losses. Summary of the Invention

[0007] In view of the deficiencies of the prior art, the present invention provides a waste incineration waste heat recovery combined heat and power generation system, achieving the purpose of solving the above problems.

[0008] To achieve the above object, the present invention is realized through the following technical solutions: A waste incineration waste heat recovery combined heat and power generation system includes an incinerator and a waste heat recovery connecting and processing pipe. One side of the waste heat recovery connecting and processing pipe is fixedly connected with a high-temperature waste gas inlet pipe. The bottom of the high-temperature waste gas inlet pipe is fixedly connected with the top of the incinerator through an exhaust pipe. The bottom of the waste heat recovery connecting and processing pipe is fixedly connected with a support member, and the bottom of the support member is fixedly connected with the incinerator. One side of the waste heat recovery connecting and processing pipe is fixedly connected with a high-temperature waste gas discharge pipe. One side of the waste heat recovery connecting and processing pipe is fixedly connected with a circulation pipeline. A waste heat recovery mechanism is arranged on the outer wall of the waste heat recovery connecting and processing pipe;

[0009] The waste heat recovery mechanism includes:

[0010] A connecting rotating plate, one side of the connecting rotating plate is rotationally connected and sealed with one end of the waste heat recovery connecting and processing pipe. The connecting rotating plate is of a circular disc structure. A first sliding sleeve is rotationally connected to the inner wall of the waste heat recovery connecting and processing pipe, and a first rotating ring is slidably connected to the inner wall of the first sliding sleeve;

[0011] An inclined拨动 plate, the inclined拨动 plate is of an inclined plate structure. One end of the inclined拨动 plate is fixedly connected to the inner wall of the first rotating ring. A heat exchanger is arranged inside the waste heat recovery connecting and processing pipe.

[0012] Preferably, a high-temperature waste gas inlet hole is opened on one side of the heat exchanger, a high-temperature waste gas outlet hole is opened on the other side of the heat exchanger, and the high-temperature waste gas inlet hole and the high-temperature waste gas outlet hole are internally connected. The number of the inclined拨动 plates is eight, and the eight inclined拨动 plates are equidistantly arranged in a circular array with the center of the first rotating ring as the point on one side of the first rotating ring.

[0013] Preferably, the outer wall of the heat exchanger is fixedly connected to the inner wall of the first rotating ring. A sliding long strip is slidably connected to the outer wall of the first rotating ring, and one side of the sliding long strip is fixedly connected to the inner wall of the first sliding sleeve.

[0014] Preferably, the outer wall of the first rotating ring is slidably connected to the inner wall of the first sliding sleeve via a sliding strip, and a connecting elastic hose is fixedly connected to one side of the first rotating ring.

[0015] Preferably, one end of the flexible connecting hose is fixedly connected to a connecting rotating ring, and the connecting rotating ring is rotatably connected to the inner wall of the waste heat recovery connecting treatment pipe through a sliding groove.

[0016] Preferably, the outer wall of the connecting ring is provided with an annular connecting groove, the connecting ring is connected to the circulation pipeline outside the waste heat recovery connecting pipe through the annular connecting groove, and the connecting elastic hose is connected to the inside of the heat exchanger through the first ring.

[0017] Preferably, the flexible connecting hose is elastic, the high-temperature exhaust gas inlet pipe is connected to the waste heat recovery connecting pipe, and the waste heat recovery connecting pipe is connected to the high-temperature exhaust gas outlet pipe.

[0018] Preferably, the inner wall of the waste heat recovery and connection treatment pipe is provided with a waste heat auxiliary treatment mechanism, the waste heat auxiliary treatment mechanism includes a second sliding sleeve, the inner wall of the second sliding sleeve is slidably connected to the inner wall of the waste heat recovery and connection treatment pipe, and the inner wall of the second sliding sleeve is provided with a second rotating ring.

[0019] Preferably, the outer wall of the second rotating ring is rotatably connected to the inner wall of the second sliding sleeve, and both the second rotating ring and the second sliding sleeve are circular ring structures.

[0020] Preferably, a thin metal wire actuating strip is fixedly connected to one side of the connecting rotating plate. One end of the thin metal wire actuating strip extends through a high-temperature exhaust gas inlet and outlet. A vertical connecting rod is fixedly connected to one side of the connecting rotating plate, and one end of the vertical connecting rod is fixedly connected to one side of the second sliding sleeve. The vertical connecting rod drives the second sliding sleeve to move synchronously along the inner wall of the waste heat recovery and connection pipe.

[0021] This invention provides a combined heat and power system for waste incineration waste heat recovery. It has the following beneficial effects:

[0022] 1. This invention, by setting up a waste heat recovery mechanism, allows the flue gas to be discharged through the high-temperature exhaust port on one side of the heat exchanger. The flue gas flow then moves the inclined deflector plate in front, causing the first rotating ring and the entire heat exchanger to rotate through the inclined surface of the deflector plate. The first rotating ring causes the heat exchanger to rotate slowly within the inner wall of the waste heat recovery connecting pipe, making the contact between the flue gas at each position and the entire heat exchanger more uniform, thus enhancing the heat exchange efficiency. At the same time, it avoids local overheating or insufficient heat exchange, and also avoids thermal stress damage caused by uneven temperature of high-temperature flue gas at different positions and uneven heat exchange during heat exchange, further improving the stability and service life of the system.

[0023] 2. By setting up a waste heat recovery mechanism, the slight vibration generated during the rotation process effectively prevents ash accumulation, keeps the heat exchange surface clean, further improves heat transfer performance, ensures long-term stable operation of the system, and keeps the flue gas temperature continuously and stably controlled within a reasonable range, thereby maximizing the comprehensive energy utilization efficiency.

[0024] 3. This invention, by setting up a waste heat recovery mechanism, uses a portion of the connecting flexible hose for output and a portion for input. The circulation pipeline contains both input and output pipelines, which are protected by being wrapped around the circulation pipeline. Through the setting of connecting flexible hoses and connecting rings, stable liquid circulation can be maintained even when the heat exchanger is rotating, ensuring the continuity of heat exchange and the reliability of system operation, and avoiding leakage and pipeline entanglement problems that occur when rotating and connecting.

[0025] 4. By setting up a waste heat recovery mechanism and a waste heat auxiliary treatment mechanism, the present invention will generate micro-vibrations when the steam flows, which will agitate the fine metal wire agitator strip, further disturb the steam flow field and enhance the turbulence effect. As a result, a local vortex is formed inside each high-temperature exhaust gas outlet with a fine metal wire agitator strip. The fine metal wire agitator strip is constantly swinging and cleaning inside the hole, so as to keep the high-temperature exhaust gas inlet and outlet channels clean and prevent them from being blocked by impurities contained in the high-temperature steam. This ensures that the channels are unobstructed for a long time. At the same time, the micro-vibration further enhances the heat exchange efficiency and stability between the steam and the heat exchanger.

[0026] 5. This invention, by setting up a waste heat recovery mechanism and a waste heat auxiliary treatment mechanism, allows high-temperature steam to enter the waste heat recovery and treatment pipe through a high-temperature exhaust gas inlet pipe. Since the high-temperature exhaust gas inlet pipe is located on one side of the waste heat recovery and treatment pipe, the steam flow will concentrate and push one side of the fine metal wire agitator, so that the fine metal wire agitator can be blown in one direction by the steam at the air inlet, thereby making the fine metal wire agitator vibrate effectively. This further causes the fine metal wire agitator to vibrate slightly inside the high-temperature exhaust gas inlet, thereby improving heat exchange efficiency and achieving a self-cleaning function, effectively preventing dust accumulation and coking.

[0027] 6. This invention, by setting up a waste heat recovery mechanism and a waste heat auxiliary treatment mechanism, ensures that in the event of blockage, excessive pressure will cause the heat exchanger to shift backward. During this shift, the holes inside the high-temperature waste gas inlet and outlet will be relatively displaced by the fine metal wire agitator, allowing the agitator to move the holes at different positions within the high-temperature waste gas inlet and outlet. This effectively prevents adhesion problems and breaks up the adhesions through relative displacement, which are then flushed out with the steam discharge, ensuring immediate unblocking of the channels and restoration of flow capacity. Simultaneously, the backward movement of the heat exchanger is automatically reset after pressure release via a highly elastic flexible connecting hose return mechanism, maintaining the stability of continuous system operation. The entire process requires no downtime maintenance, significantly improving the automation level and long-term operational reliability of the equipment. It is suitable for continuous heat exchange needs in high-temperature, high-humidity, and complex operating environments. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the waste heat recovery and connection treatment pipe of the present invention.

[0030] Figure 3 This is a schematic cross-sectional view of the waste heat recovery and connection treatment pipe of the present invention;

[0031] Figure 4 For the present invention Figure 3 Enlarged view of point A;

[0032] Figure 5 This is a schematic diagram of the waste heat recovery mechanism of the present invention;

[0033] Figure 6 For the present invention Figure 5 Enlarged view of point B;

[0034] Figure 7 This is a schematic diagram of the waste heat auxiliary treatment mechanism of the present invention;

[0035] Figure 8 This is a schematic diagram of the disassembled structure of the present invention;

[0036] Figure 9 This is a schematic diagram of the structure of the fine metal wire actuating bar of the present invention.

[0037] In the diagram: 1. High-temperature waste gas inlet pipe; 2. Waste heat recovery and connection treatment pipe; 3. Waste heat recovery mechanism; 301. Connecting rotating plate; 302. First sliding sleeve; 303. Connecting rotating ring; 304. First rotating ring; 305. Sliding strip; 306. Connecting elastic hose; 307. Inclined actuating plate; 308. Annular connecting groove; 309. Heat exchanger; 310. High-temperature waste gas inlet; 311. High-temperature waste gas outlet; 4. Waste heat auxiliary treatment mechanism; 401. Second sliding sleeve; 402. Second rotating ring; 403. Fine metal wire actuating strip; 404. Vertical connecting rod; 5. Circulation pipeline; 6. High-temperature waste gas discharge pipe; 7. Incinerator; 8. Support component. Detailed Implementation

[0038] Example 1: Please refer to Figure 1-3 The present invention provides a technical solution: a waste incineration waste heat recovery cogeneration system, including an incinerator 7 and a waste heat recovery connecting pipe 2. A high-temperature exhaust gas inlet pipe 1 is fixedly connected to one side of the waste heat recovery connecting pipe 2. The bottom of the high-temperature exhaust gas inlet pipe 1 is fixedly connected to the top of the incinerator 7 through an exhaust pipe. A support member 8 is fixedly connected to the bottom of the waste heat recovery connecting pipe 2. The bottom of the support member 8 is fixedly connected to the incinerator 7. A high-temperature exhaust gas outlet pipe 6 is fixedly connected to one side of the waste heat recovery connecting pipe 2. A circulation pipeline 5 is fixedly connected to one side of the waste heat recovery connecting pipe 2. A waste heat recovery mechanism 3 is provided on the outer wall of the waste heat recovery connecting pipe 2.

[0039] Waste heat recovery unit 3 includes:

[0040] A rotating plate 301 is connected to a waste heat recovery and treatment pipe 2. One side of the rotating plate 301 is rotatably connected to and sealed with one end of the waste heat recovery and treatment pipe 2. The rotating plate 301 is a circular disc structure. A first sliding sleeve 302 is rotatably connected to the inner wall of the waste heat recovery and treatment pipe 2. A first rotating ring 304 is slidably connected to the inner wall of the first sliding sleeve 302.

[0041] The inclined actuating plate 307 is an inclined plate-shaped structure. One end of the inclined actuating plate 307 is fixedly connected to the inner wall of the first rotating ring 304. A heat exchanger 309 is installed inside the waste heat recovery and connection treatment pipe 2.

[0042] In operation, the waste to be incinerated is fed into the inlet on one side of the incinerator 7. The incinerator 7 incinerates the waste. After the waste is incinerated in the incinerator 7, a large amount of high-temperature waste steam and flue gas are generated. These enter the high-temperature waste gas inlet pipe 1 through the exhaust pipe and are discharged into the waste heat recovery and treatment pipe 2. Then, they enter the heat exchanger 309 through the high-temperature waste gas inlet 310 on one side of the heat exchanger 309 and are discharged through the high-temperature waste gas outlet 311 on the other side of the heat exchanger 309. Finally, they are discharged outward through the high-temperature waste gas outlet pipe 6. Inside the heat exchanger 309, the high-temperature flue gas is absorbed by the low-temperature liquid circulation, realizing the absorption of waste steam and flue gas waste heat. Energy is transferred through the circulation pipe 5 to the outside for heat exchange, thereby realizing the utilization of waste heat energy of high-temperature flue gas, reducing the exhaust temperature, improving the comprehensive energy utilization rate, and completing the waste heat recovery and treatment work generated by waste incineration.

[0043] Example 2: Please refer to Figure 1-6 Based on Embodiment 1, this invention provides a technical solution: Dust and other impurities contained in high-temperature flue gas easily accumulate on the surface of heat exchangers in traditional fixed heat exchange structures, forming ash deposits. These ash deposits gradually cover the heat exchange surface, hindering heat transfer, reducing heat transfer performance, and causing unstable flue gas temperature that is difficult to control within a reasonable range, further weakening the overall energy utilization efficiency. Simultaneously, the ash accumulation problem also affects the long-term stable operation of the system, requiring frequent shutdowns for cleaning, increasing operating costs and downtime losses. Furthermore, attempts to improve the waste heat recovery system by incorporating rotation to enhance heat exchange uniformity and prevent ash accumulation present new technical challenges. Ensuring the stability and continuity of the internal cryogenic liquid circulation while the heat exchanger is rotating, and avoiding liquid leaks and pipe entanglement, has become a key factor restricting the application of rotary waste heat recovery systems. Existing rotary connection technology is difficult to meet the stable operation requirements under complex working conditions, which greatly reduces the reliability and practicality of the rotary waste heat recovery system. Therefore, a high-temperature waste gas inlet 310 is opened on one side of the heat exchanger 309, and a high-temperature waste gas outlet 311 is opened on the other side of the heat exchanger 309. The high-temperature waste gas inlet 310 and the high-temperature waste gas outlet 311 are internally connected. There are eight inclined actuating plates 307. The eight inclined actuating plates 307 are arranged in a ring array at equal intervals on one side of the first rotating ring 304 with the center of the first rotating ring 304 as the point.

[0044] The outer wall of the heat exchanger 309 is fixedly connected to the inner wall of the first rotating ring 304. A sliding strip 305 is slidably connected to the outer wall of the first rotating ring 304. One side of the sliding strip 305 is fixedly connected to the inner wall of the first sliding sleeve 302.

[0045] The outer wall of the first rotating ring 304 is slidably connected to the inner wall of the first sliding sleeve 302 via a sliding strip 305, and a connecting elastic hose 306 is fixedly connected to one side of the first rotating ring 304.

[0046] One end of the flexible flexible hose 306 is fixedly connected to a connecting ring 303, and the connecting ring 303 is rotatably connected to the inner wall of the waste heat recovery connecting treatment pipe 2 through a sliding groove.

[0047] The outer wall of the connecting ring 303 is provided with an annular connecting groove 308. The connecting ring 303 is connected to the circulation pipe 5 outside the waste heat recovery connecting treatment pipe 2 through the annular connecting groove 308. The connecting elastic hose 306 is connected to the inside of the heat exchanger 309 through the first ring 304.

[0048] The flexible hose 306 is elastic. The high-temperature exhaust gas inlet pipe 1 is connected to the waste heat recovery and treatment pipe 2. The waste heat recovery and treatment pipe 2 is connected to the high-temperature exhaust gas outlet pipe 6.

[0049] After being discharged through the high-temperature exhaust gas outlet 311 on one side of the heat exchanger 309, the flue gas flow deflects the inclined deflector plate 307 in front. The inclined surface of the deflector plate 307 drives the first rotating ring 304 and the heat exchanger 309 to rotate as a whole. The first rotating ring 304 drives the heat exchanger 309 to rotate slowly in the inner wall of the waste heat recovery connecting pipe 2, so that the contact between the flue gas at each position and the heat exchanger 309 as a whole is more uniform, which enhances the heat exchange efficiency and avoids local overheating or insufficient heat exchange. It also avoids the problem of thermal stress damage caused by uneven temperature of high-temperature flue gas at different positions and uneven heat exchange in the heat exchanger 309, further improving the stability and service life of the system.

[0050] Meanwhile, the slight vibration generated during rotation effectively prevents ash accumulation, keeps the heat exchange surface clean, further improves heat transfer performance, ensures long-term stable operation of the system, and keeps the flue gas temperature continuously and stably controlled within a reasonable range, maximizing the comprehensive energy utilization efficiency.

[0051] The first rotating ring 304 drives the first sliding sleeve 302 to rotate via the sliding strip 305. At the same time, the circulating liquid inside the heat exchanger 309 is connected to the inside of the connecting ring 303 through the first rotating ring 304, the connecting elastic hose 306, and the connecting ring 303. The connecting ring 303 also rotates together with the connecting elastic hose 306 in the inner wall of the waste heat recovery connecting pipe 2, and is connected to the corresponding annular groove on the inner wall of the waste heat recovery connecting pipe 2 through the annular connecting groove 308 on the outer wall of the connecting ring 303. The heat exchange is carried out through the circulation pipe 5, which discharges and enters in a dual circulation heat exchange. A part of the connecting elastic hose 306 is used for output and a part of the connecting elastic hose 306 is used for input. There are two pipes inside the circulation pipe 5, which are covered by the circulation pipe 5 for pipe protection. The setting of the connecting elastic hose 306 and the connecting ring 303 can ensure that even when the heat exchanger 309 is rotating, it can still maintain a stable liquid circulation flow, ensuring the continuity of heat exchange and the reliability of system operation, and avoiding leakage and pipe entanglement problems that occur during rotation and connection.

[0052] Example 3: Please refer to Figure 1-9 Based on Embodiments 1 and 2, this invention provides a technical solution: High-temperature steam often contains various impurity particles, which easily deposit at the high-temperature waste gas inlet and outlet 311 during steam flow. Over time, the deposited impurities gradually accumulate, leading to blockage of the steam channels. Channel blockage not only significantly reduces steam flow and affects waste heat recovery efficiency but also causes abnormal pressure increases within the system, increasing the risk of equipment damage. Furthermore, traditional steam channel designs lack effective self-cleaning mechanisms; once blockage occurs, manual cleaning is usually required, which not only increases maintenance costs but also leads to prolonged system downtime, affecting the continuity and stability of waste incineration.

[0053] In existing waste heat recovery systems, the heat exchange process between steam and heat exchanger 309 is not ideal. Due to the relatively stable steam flow and insufficient turbulence effect, the heat transfer between the steam and the surface of heat exchanger 309 is inadequate. Especially near the high-temperature exhaust gas inlet and outlet 311, the steam flow tends to form laminar flow, further hindering effective heat transfer. This results in a large amount of waste heat not being fully recovered and utilized, reducing the overall energy utilization rate. Furthermore, low heat exchange efficiency also leads to excessively high flue gas temperatures, causing not only energy waste but also potential thermal pollution to the environment.

[0054] Moreover, when high-temperature steam flows through the heat exchanger 309, dust and other impurities in it are likely to accumulate on the surface of the heat exchanger 309 and in the steam channels, forming ash deposits. The ash deposits will gradually cover the surface of the heat exchanger 309, hinder heat transfer, and reduce the heat transfer performance. In addition, in a high-temperature environment, some impurities may also undergo chemical reactions to form coke. The coke will further increase the thermal resistance on the surface of the heat exchanger 309, causing a significant drop in the heat exchange efficiency. The problems of ash deposition and coking not only affect the performance of the waste heat recovery system but also shorten the service life of the equipment, increasing the maintenance and replacement costs.

[0055] At the same time, when the existing waste heat recovery system faces complex working conditions, such as steam flow fluctuations and pressure changes, it is often difficult to maintain a stable operating state. When the pressure in the system is too high, there is a lack of effective pressure release and regulation mechanisms, which is likely to cause equipment damage. Also, during the operation of the equipment, if there is a local blockage or other faults, it usually requires shutdown for maintenance and cannot achieve automatic dredging and resumption of operation, affecting the continuity and reliability of the system. In addition, there are defects in the design of the rotating and sliding parts of traditional equipment, which are likely to cause motion interference and affect the normal operation of the equipment. Therefore, a waste heat auxiliary treatment mechanism 4 is provided on the inner wall of the waste heat recovery connection pipe 2. The waste heat auxiliary treatment mechanism 4 includes a second sliding sleeve 401, and the inner wall of the second sliding sleeve 401 is slidably connected to the inner wall of the waste heat recovery connection pipe 2. A second rotating ring 402 is provided on the inner wall of the second sliding sleeve 401.

[0056] The outer wall of the second rotating ring 402 is rotatably connected to the inner wall of the second sliding sleeve 401. Both the second rotating ring 402 and the second sliding sleeve 401 are circular ring structures.

[0057] One side of the connecting rotating plate 301 is fixedly connected with a thin metal wire拨动条 403. One end of the thin metal wire拨动条 403 extends out through the high-temperature waste gas inlet hole 310 and the high-temperature waste gas outlet hole 311. One side of the connecting rotating plate 301 is fixedly connected with a vertical connecting rod 404. One end of the vertical connecting rod 404 is fixedly connected with one side of the second sliding sleeve 401; <​During the steam flow process, several thin metal wire agitators 403 on one side of the rotating plate 301 are evenly distributed and inserted into each corresponding high-temperature exhaust gas inlet 310, extending slightly through the high-temperature exhaust gas outlet 311. The thin metal wire agitators 403 are thin strips of high-temperature resistant metal wires, which do not obstruct the hot steam from passing through the high-temperature exhaust gas inlet 310 and the high-temperature exhaust gas outlet 311. During the steam flow, the thin metal wire agitators 403 will generate slight vibrations, further disturbing the steam flow field and enhancing the turbulence effect. As a result, a local vortex is formed inside each high-temperature exhaust gas outlet 311 with a thin metal wire agitator 403. The thin metal wire agitators 403 are constantly swaying and cleaning inside the holes as they are blown, so as to keep the high-temperature exhaust gas inlet 310 and the high-temperature exhaust gas outlet 311 channels clean and prevent them from being blocked by impurities contained in the high-temperature steam. This ensures that the channels are unobstructed for a long time. At the same time, the micro-vibration further enhances the heat exchange efficiency and stability between the steam and the heat exchanger 309.

[0059] Meanwhile, since the high-temperature steam enters the waste heat recovery and connection treatment pipe 2 through the high-temperature exhaust gas inlet pipe 1, and the high-temperature exhaust gas inlet pipe 1 is located on one side of the waste heat recovery and connection treatment pipe 2, the steam flow will concentrate and push one side of the fine metal wire agitator 403, so that the fine metal wire agitator 403 can be blown in one direction by the steam at the air inlet, thereby making the fine metal wire agitator 403 vibrate effectively, and making the fine metal wire agitator 403 vibrate slightly inside the high-temperature exhaust gas inlet 310, thereby improving the heat exchange efficiency and achieving the self-cleaning function, effectively preventing dust accumulation and coking;

[0060] Finally, in the event of a blockage, excessive pressure will push the heat exchanger 309 backward. The second rotating ring 402 and the first rotating ring 304 at both ends of the heat exchanger 309 will slide within the inner walls of the second sliding sleeve 401 and the first sliding sleeve 302 via corresponding sliding strips 305. Simultaneously, the second sliding sleeve 401 and the first sliding sleeve 302 are used to rotate the heat exchanger 309, ensuring that sliding and rotation do not interfere with each other. This allows the heat exchanger 309 to move backward as a whole. During this movement, the holes inside the high-temperature exhaust gas inlet 310 and the high-temperature exhaust gas outlet 311 will experience relative displacement with the thin metal wire actuating strip 403, allowing the thin metal... The wire-operated actuating strip 403 moves the holes in different positions of the high-temperature exhaust gas inlet 310 and the high-temperature exhaust gas outlet 311, effectively avoiding adhesion problems. It also breaks up the adhesion through relative displacement and flushes it out with the steam discharge, ensuring that the channel is cleared in time and the flow capacity is restored. At the same time, the backward movement of the heat exchanger 309 is automatically reset after the pressure is released through the spring-back mechanism of the flexible connecting hose 306 with greater elasticity, maintaining the stability of continuous system operation. The whole process does not require shutdown maintenance, which significantly improves the automation level and long-term operational reliability of the equipment. It is suitable for continuous heat exchange needs in high temperature, high humidity and complex working conditions.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A waste incineration waste heat recovery cogeneration system, comprising an incinerator (7) and a waste heat recovery connecting pipe (2), wherein a high-temperature waste gas inlet pipe (1) is fixedly connected to one side of the waste heat recovery connecting pipe (2), the bottom of the high-temperature waste gas inlet pipe (1) is fixedly connected to the top of the incinerator (7) via an exhaust, a support member (8) is fixedly connected to the bottom of the waste heat recovery connecting pipe (2), the bottom of the support member (8) is fixedly connected to the incinerator (7), a high-temperature waste gas outlet pipe (6) is fixedly connected to one side of the waste heat recovery connecting pipe (2), and a circulation pipeline (5) is fixedly connected to one side of the waste heat recovery connecting pipe (2), characterized in that: The outer wall of the waste heat recovery connecting pipe (2) is provided with a waste heat recovery mechanism (3); The waste heat recovery mechanism (3) includes: A connecting rotating plate (301) is provided. One side of the connecting rotating plate (301) is rotatably connected to and sealed with one end of the waste heat recovery connecting pipe (2). The connecting rotating plate (301) is a circular disc structure. A first sliding sleeve (302) is rotatably connected to the inner wall of the waste heat recovery connecting pipe (2). A first rotating ring (304) is slidably connected to the inner wall of the first sliding sleeve (302). Inclined actuating plate (307), the inclined actuating plate (307) is an inclined plate-shaped structure, one end of the inclined actuating plate (307) is fixedly connected to the inner wall of the first rotating ring (304), and a heat exchanger (309) is provided inside the waste heat recovery connecting pipe (2). The heat exchanger (309) has a high-temperature exhaust gas inlet (310) on one side and a high-temperature exhaust gas outlet (311) on the other side. The high-temperature exhaust gas inlet (310) and the high-temperature exhaust gas outlet (311) are internally connected. There are eight inclined actuating plates (307). The eight inclined actuating plates (307) are arranged in a circular array at equal intervals on one side of the first rotating ring (304) with the center of the first rotating ring (304) as the point. The outer wall of the heat exchanger (309) is fixedly connected to the inner wall of the first rotating ring (304), and a sliding strip (305) is slidably connected to the outer wall of the first rotating ring (304). One side of the sliding strip (305) is fixedly connected to the inner wall of the first sliding sleeve (302). The outer wall of the first rotating ring (304) is slidably connected to the inner wall of the first sliding sleeve (302) via a sliding strip (305), and a connecting elastic hose (306) is fixedly connected to one side of the first rotating ring (304). One end of the connecting flexible hose (306) is fixedly connected to a connecting rotating ring (303), and the connecting rotating ring (303) is rotatably connected to the inner wall of the waste heat recovery connecting treatment pipe (2) through a sliding groove. The outer wall of the connecting ring (303) is provided with an annular connecting groove (308). The connecting ring (303) is connected to the circulation pipeline (5) outside the waste heat recovery connecting pipe (2) through the annular connecting groove (308). The connecting elastic hose (306) is connected to the inside of the heat exchanger (309) through the first ring (304). The flexible flexible hose (306) is elastic. The interior of the high-temperature exhaust gas inlet pipe (1) is connected to the interior of the waste heat recovery connection pipe (2). The interior of the waste heat recovery connection pipe (2) is connected to the interior of the high-temperature exhaust gas outlet pipe (6). The waste heat recovery connecting pipe (2) is provided with a waste heat auxiliary treatment mechanism (4) on its inner wall. The waste heat auxiliary treatment mechanism (4) includes a second sliding sleeve (401). The inner wall of the second sliding sleeve (401) is slidably connected to the inner wall of the waste heat recovery connecting pipe (2). The inner wall of the second sliding sleeve (401) is provided with a second rotating ring (402). The outer wall of the second rotating ring (402) is rotatably connected to the inner wall of the second sliding sleeve (401), and both the second rotating ring (402) and the second sliding sleeve (401) are circular ring structures.

2. The combined heat and power system for waste incineration waste heat recovery according to claim 1, characterized in that: A thin metal wire actuating strip (403) is fixedly connected to one side of the connecting rotating plate (301). One end of the thin metal wire actuating strip (403) extends through the high-temperature exhaust gas inlet (310) and the high-temperature exhaust gas outlet (311). A vertical connecting rod (404) is fixedly connected to one side of the connecting rotating plate (301). One end of the vertical connecting rod (404) is fixedly connected to one side of the second sliding sleeve (401).

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