Thermal power generation waste heat recycling equipment

Abstract

The invention relates to the technical field of thermal power generation, in particular to thermal power generation waste heat recycling equipment. The tobacco leaf discharging wheel is arranged at the bottom of an inner cavity of the water heat exchange shell, and the center is sleeved on a power output shaft of the motor. A plurality of annular shells are concentrically arranged at the top of the inner cavity of the water heat exchange shell; water inlet and outlet joints are respectively arranged on the top surfaces of the annular shells corresponding to the two sides of the inner cavity partition plate; the water inlet pipe communicates with the water inlet joint; the water outlet pipe is communicated with the water outlet joint; the connecting smoke pipe is used for connecting the smoke discharge elbow and the bottom of the smoke discharge cylinder; the air heat exchange piece comprises annular pipe bodies arranged outside the smoke exhaust cylinder in a sleeving mode in pairs and a plate-shaped shell with the top and the bottom connected with the annular pipe bodies. The air inlet pipe and the exhaust pipe are respectively connected with annular pipe bodies at the top and the bottom of the air heat exchange piece; the air pump output end is connected to the air inlet pipe input end; a strip-shaped groove connected with the plate-shaped shell in an inserted mode is formed in the circumferential wall of the smoke discharging barrel. And the heat recovery rate of waste gas discharged by the thermal power generation boiler is improved.

Description

Technical Field

[0001] The invention relates to the technical field of thermal power generation, in particular to waste heat recovery and reuse equipment for thermal power generation. Background Art

[0002] Thermal power plant, also known as thermal power plant for short, is a plant that uses combustibles as fuel to produce electricity. A modern thermal power plant is a large and complex plant that produces electricity and heat energy and consists of five systems: fuel system, combustion system, steam-water system, electrical system and control system. Among them, thermal power technology must continue to improve and develop in order to adapt to the requirements of society. Due to the current shortage of water resources and energy, the deteriorating environment and other conditions, the rational and effective use of flue gas waste heat in power plants, improving the efficiency of thermal power units and reducing coal consumption are one of the main and important measures for energy conservation. In thermal power plants, the problem of boiler exhaust waste heat has always been a problem that has troubled people. Therefore, setting up a flue gas waste heat system can greatly improve the thermal efficiency of thermal power plants and reduce coal consumption.

[0003] At present, after the boiler burns fuel, a large amount of flue gas is produced, which is generally discharged directly after purification. However, the flue gas carries a large amount of heat that cannot be used, resulting in heat loss and energy waste. Summary of the invention

[0004] The purpose of the present invention is to provide a waste heat recovery and reuse device for thermal power generation, which is used to solve the problem of heat waste in the exhaust gas discharged from the boiler during thermal power generation in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a waste heat recovery and reuse device for thermal power generation comprises a smoke exhaust chimney, wherein the top and bottom surfaces of the water heat exchange shell are respectively provided with a smoke exhaust elbow and a smoke inlet elbow; the motor is vertically fixed to the center of the bottom surface of the water heat exchange shell; the smoke exhaust impeller is arranged at the bottom of the inner cavity of the water heat exchange shell and its center is fixedly sleeved on the power output shaft of the motor; a plurality of annular shells are concentrically arranged at the top of the inner cavity of the water heat exchange shell, a partition is provided at one end of the inner cavity of the annular shell, and a water inlet joint and a water outlet joint are respectively provided on the top surface of the annular shell corresponding to the positions on both sides of the partition; the water inlet pipe is respectively connected to the water inlet joint; the water outlet pipe is connected to the water outlet joint The heads are respectively connected, and the water outlet pipe is used to replenish water to the boiler; the two ends of the connecting smoke pipe are respectively connected to the smoke exhaust elbow and the position near the bottom of the smoke exhaust pipe; the air heat exchanger includes a pair of annular tube bodies which are sleeved on the outside of the smoke exhaust pipe and a plate-like shell whose top and bottom ends are respectively connected to the annular tube bodies and extend radially respectively; the air inlet pipe is connected to the annular tube body at the top of the air heat exchanger; the exhaust pipe is connected to the annular tube body at the bottom of the air heat exchanger, and the air at the output end of the exhaust pipe is used to preheat the boiler fuel; the output end of the air pump is connected to the input end of the air inlet pipe; the peripheral wall of the smoke exhaust pipe is provided with a strip groove which is plug-matched with the plate-like shell.

[0006] Preferably, the water heat exchange shell includes a tank body, a plurality of legs whose top ends are fixed to the bottom of the tank body, and a top cover fixedly connected to the top of the tank body, the smoke inlet elbow is connected to one side of the bottom surface of the tank body, the bottom end of the smoke exhaust elbow is connected to the middle of the top surface of the top cover, the water inlet pipe and the water outlet pipe are respectively sleeved on the two side walls of the top cover near the outer ends, and the top of the motor is fixed at the center of the bottom surface of the tank body.

[0007] Preferably, it also includes a support member fixedly mounted on the top end of the motor power output shaft and a cleaning member fixed at the bottom end of the support member and used for cleaning the inner and outer circumferential walls of the annular shell, the support member includes a disk body centrally fixedly mounted on the top end of the motor power output shaft and a strip plate radially fixed to the two side walls of the disk body, a plurality of sleeve holes are provided in the middle portion of the strip plate along its axial direction, the cleaning member includes a vertical rod, a screw rod fixedly docked at the bottom end of the vertical rod and sleeved in the sleeve hole, a locking nut threadedly mounted on the bottom end of the screw rod, and a plurality of scrapers fixed to the outer circumferential wall of the vertical rod.

[0008] Preferably, the smoke exhaust pipe includes a base, a vertical tube whose bottom end is fixedly connected to the top of the base, and an air inlet connected to the bottom end of the side wall of the vertical tube and connected to the output end of the connecting smoke pipe, and a plurality of groups of the strip grooves are evenly arranged vertically on the peripheral wall of the vertical tube.

[0009] Preferably, a support plate is radially fixed to the top of the inner cavity of the tank body, and the tops of the inner and outer side walls of the annular shell are respectively provided with connecting plates fixedly connected to the support plate, and both ends of the support plate are respectively provided with arc plates that fit to the top of the circumferential wall of the tank body, and the arc plates are fixedly connected to the side walls of the tank body by bolts.

[0010] Preferably, a connecting air pipe is connected between the input end of the air intake pipe and the output end of the air pump.

[0011] Preferably, a plurality of fins extending in the circumferential direction are fixed on the inner peripheral wall of the annular shell.

[0012] Preferably, the smoke exhaust impeller includes a sleeve fixedly mounted on the motor power output shaft, blades whose inner ends are radially fixed to the outer circumferential wall of the sleeve, and a slewing bearing whose inner circumferential wall of a rotating inner ring is fixedly connected to the outer end of the blade and whose outer ring is fixed to the bottom of the inner circumferential wall of the water heat exchange shell.

[0013] Preferably, the bottom of the water inlet pipe is fixedly connected to the position corresponding to the water inlet joint, and the bottom end of the branch pipe is rotatably sleeved with a connecting sleeve 1 that matches the threaded sleeve of the water inlet joint; the bottom of the water outlet pipe is fixedly connected to the position corresponding to the water outlet joint, and the bottom end of the branch pipe 2 is rotatably sleeved with a connecting sleeve 2 that matches the threaded sleeve of the water outlet joint.

[0014] Preferably, the annular tube body comprises semi-annular tubes connected in pairs, the inner circumferential wall of the semi-annular tubes being evenly provided with a plurality of insertion holes along the circumferential direction, a can being fixed to the middle of the outer circumferential wall of one of the semi-annular tubes, and insertion tubes matching with the insertion holes are respectively fixed to the top and bottom ends of the outer end side walls of the plate-shaped shell.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The waste heat recovery and reuse equipment for thermal power generation disclosed by the present invention first recovers the heat in the flue gas discharged from the boiler using water through the water heat exchange part, and the water is used to replenish water to the boiler after absorbing the heat; the air heat exchange element recovers the heat of the flue gas for a second time at the flue gas exhaust pipe, and the air is used to preheat the boiler fuel after absorbing the heat, thereby greatly improving the recovery rate of heat in the flue gas discharged from the boiler and reducing the energy consumption in the thermal power generation process to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention as a whole; Figure 2 It is a schematic diagram of the three-dimensional structure of the smoke exhaust pipe of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the smoke exhaust impeller of the present invention; Figure 4It is a schematic diagram of the three-dimensional structure of the annular shell of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the support member of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the cleaning member of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the water inlet pipe of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the water outlet pipe of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the annular tube body of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the plate-shaped shell of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the support plate of the present invention.

[0017] In the figure: 1-smoke exhaust pipe; 1.1-base; 1.2-vertical tube; 1.2.1-strip groove; 1.3-air inlet; 2-water heat exchange shell; 2.1-tank body; 2.2-top cover; 2.3-smoke inlet elbow; 2.4-support leg; 2.5-smoke exhaust elbow; 3- Motor; 4-smoke exhaust impeller; 4.1-shaft sleeve; 4.2-blade; 4.3-slewing bearing; 5-annular shell; 5.1-partition plate; 5.2-water inlet joint; 5.3-water outlet joint; 5.4-fin; 5.5-connecting plate; 6-supporting member; 6.1-dish body; 6.2-strip plate; 6.2.1-hole; 7-cleaning part; 7.1-vertical rod; 7.2-scraper; 7.3-screw rod; 7.4-locking nut; 8-water inlet pipe; 8.1-branch pipe 1; 8.2-connecting sleeve 1; 9-water outlet pipe; 9.1-branch pipe 2; 9.2-connection sleeve 2; 10- Connect the smoke pipe; 11-air heat exchanger; 11.1-annular tube body; 11.1.1-semi-annular tube; 11.1.2-tube head; 11.1.3-jack; 11.2-plate shell; 11.2.1-insert tube; 12-intake pipe; 13- Exhaust pipe; 14- Connect the trachea; 15- Air pump; 16-Support plate; 16.1-Curved plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-11 The present invention provides a technical solution, a waste heat recovery and reuse device for thermal power generation, including a smoke exhaust chimney 1, wherein the smoke exhaust chimney 1 includes a base 1.1, a vertical tube 1.2 whose bottom end is fixedly connected to the top of the base 1.1, and an air inlet 1.3 connected to the bottom end of the side wall of the vertical tube 1.2, and a plurality of groups of strip grooves 1.2.1 are evenly arranged vertically on the peripheral wall of the vertical tube 1.2, and each group of strip grooves 1.2.1 is evenly distributed on the peripheral wall of the vertical tube 1.2 along the circumferential direction.

[0020] The water heat exchange shell 2 includes a tank body 2.1, a plurality of legs 2.4 whose top is fixed to the bottom of the tank body 2.1, and a top cover 2.2 fixedly connected to the top of the tank body 2.1. A smoke inlet elbow 2.3 is connected to one side of the bottom surface of the tank body 2.1, and the bottom end of the smoke exhaust elbow 2.5 is connected to the middle of the top surface of the top cover 2.2. The smoke inlet elbow 2.3 is connected to the smoke exhaust outlet of the boiler. The output end of the smoke exhaust elbow 2.5 is connected to the input end of the air inlet 1.3 through a connecting smoke pipe 10.

[0021] The motor 3 is vertically fixed to the center of the bottom surface of the tank body 2.1, and the power output shaft of the motor 3 passes through the center of the bottom surface of the tube body 2.1.

[0022] The smoke exhaust impeller 4 is arranged at the bottom of the inner cavity of the water heat exchange housing 2 and its center is fixedly mounted on the power output shaft of the motor 3. The smoke exhaust impeller 4 includes a sleeve 4.1 fixedly mounted on the power output shaft of the motor 3, a blade 4.2 whose inner end is radially fixed to the outer peripheral wall of the sleeve 4.1, and a slewing bearing 4.3 whose inner peripheral wall of the rotating inner ring is fixedly connected to the outer end of the blade 4.2 and whose outer ring is fixed to the bottom of the inner peripheral wall of the water heat exchange housing 2.

[0023] A plurality of annular shells 5 are concentrically arranged at the top of the inner cavity of the tank body 2.1, a partition 5.1 is arranged at one end of the inner cavity of the annular shell 5, and a water inlet joint 5.2 and a water outlet joint 5.3 are arranged at the positions corresponding to the two sides of the partition 5.1 on the top surface of the annular shell 5. In order to improve the heat exchange efficiency of the annular shell 5, a plurality of fins 5.4 extending in the circumferential direction are fixed on the inner circumferential wall of the annular shell 5. In order to facilitate the suspension and fixing of the annular shell 5 on the top of the inner cavity of the tank body 2.1, arc plates 16.1 are respectively arranged at both ends of the support plate 16 to fit the top of the inner circumferential wall of the tank body 2.1, and the arc plates 16.1 are fixedly connected to the side wall of the tank body 2.1 by bolts, and the tops of the inner and outer side walls of the annular shell 5 are respectively provided with connecting plates 5.5 fixedly connected to the supporting plate 16, that is, the connecting plates 5.5 are fixed to the supporting plate 16 by bolts.

[0024] The positions near the outer ends of the water inlet pipe 8 and the water outlet pipe 9 are respectively sleeved on the two side walls of the top cover 2.2, the water inlet pipe 8 is respectively communicated with the water inlet joint 5.2, and the water inlet pipe 8 is directly connected to the tap water supply pipeline, etc.; the water outlet pipe 9 is respectively communicated with the water outlet joint 5.3, and the water outlet pipe 9 is used to replenish water to the boiler; wherein, the positions of the bottom of the water inlet pipe 8 corresponding to the water inlet joint 5.2 are respectively fixedly connected with branch pipe 1 8.1, and the bottom end of the branch pipe 1 8.1 is rotatably sleeved with a connecting sleeve 1 8.2 that matches the threaded sleeve of the water inlet joint 5.2, and the positions of the bottom of the water outlet pipe 9 corresponding to the water outlet joint 5.3 are respectively fixedly connected with branch pipe 2 9.1, and the bottom end of the branch pipe 2 9.1 is rotatably sleeved with a connecting sleeve 2 9.2 that matches the threaded sleeve of the water outlet joint 5.3.

[0025] The air heat exchanger 11 comprises an annular tube body 11.1 which is sleeved on the outside of the smoke exhaust pipe 1 in pairs, and a plate-shaped shell 11.2 which is connected to the annular tube body 11.1 at the top and bottom of the outer end and extends radially. The annular tube body 11.1 comprises a pair of semi-annular tubes 11.1.1, and the inner peripheral wall of the semi-annular tube 11.1.1 is evenly provided with a plurality of plug holes 11.1.3 along the circumferential direction, wherein a can 11.1.2 is fixed to the middle of the outer peripheral wall of one of the semi-annular tubes 11.1.1, and the outer side wall top and bottom of the plate-shaped shell 11.2 are respectively fixed with plugs 11.2.1 which are plugged and matched with the plug holes 11.1.3. That is, when installing the air heat exchanger 11, each plate-shaped shell 11.2 is first inserted into the strip groove 1.2.1, and then the semi-annular tube 11.1.1 is installed, so that the plugs 11.2.1 are plugged into the plug holes 11.1.3 in a one-to-one correspondence. The air inlet pipe 12 is connected to the annular tube body 11.1 at the top of the air heat exchanger 11; the exhaust pipe 13 is connected to the annular tube body 11.1 at the bottom of the air heat exchanger 11, and the air at the output end of the exhaust pipe 13 is used to preheat the boiler fuel; the output end of the air pump 15 is connected to the input end of the air inlet pipe 12, that is, a connecting air pipe 14 is connected between the input end of the air inlet pipe 12 and the output end of the air pump 15. The air pump 15 pumps air into the air inlet pipe 12 through the connecting air pipe 14, and the air flows from the annular tube body 11.1 at the top into the inner cavity of the plate-shaped shell 11.2, and then flows into the exhaust pipe 13 through the annular tube body 11.1 at the bottom. The fuel at the boiler is generally pulverized coal, and the hot air discharged from the exhaust pipe 13 will preheat the pulverized coal.

[0026] It also includes a support member 6 fixedly sleeved on the top of the power output shaft of the motor 3 and a cleaning member 7 fixed at the bottom of the support member 6 and used to clean the inner and outer peripheral walls of the annular housing 5. The support member 6 includes a disk body 6.1 fixedly sleeved on the top of the power output shaft of the motor 3 and a strip plate 6.2 radially fixed to the two side walls of the disk body 6.1, and a plurality of sleeve holes 6.2.1 are arranged in the middle of the strip plate 6.2 along its axial direction. The cleaning member 7 includes a vertical rod 7.1, a screw rod 7.3 fixedly docked at the bottom of the vertical rod 7.1 and sleeved in the sleeve hole 6.2.1, a locking nut 7.4 threadedly sleeved on the bottom of the screw rod 7.3, and a plurality of scrapers 7.2 fixed to the outer peripheral wall of the vertical rod 7.1.

[0027] In summary, when in use, the motor 3 drives the smoke exhaust impeller 4 to rotate to provide an upward lift to the smoke, so that the smoke flowing out of the boiler exhaust outlet enters the inner cavity of the water heat exchange shell 2 through the smoke inlet elbow 2.3, and is discharged upward through the smoke exhaust elbow 2.5 from the water heat exchange shell 2. During this period, a water flow channel is formed between the water inlet pipe 8 and the water outlet pipe 9, and the water flows through the outer wall of the annular shell 5 to exchange heat with the smoke, and the water that absorbs heat is replenished to the boiler through the water outlet pipe 9.

[0028] After the first heat exchange, the flue gas enters the bottom of the smoke exhaust pipe 1 through the smoke exhaust elbow 2.5 and the connecting smoke pipe 10, and is discharged upward from the top of the smoke exhaust pipe 1; during this period, the air pump 15 pumps air into the air inlet pipe 12 through the connecting air pipe 14, and the air flows into the inner cavity of the plate-shaped shell 11.2 from the top annular tube body 11.1, and exchanges heat with the flue gas through the side wall of the plate-shaped shell 11.2, so that the flue gas completes secondary heat recovery, and then the air that absorbs the heat in the flue gas flows into the exhaust pipe 13 through the bottom annular tube body 11.1 to preheat the boiler fuel.

[0029] In addition, while the motor 3 drives the smoke exhaust impeller 4 to rotate, it also drives the cleaning member to rotate between adjacent annular shells 5 through the support member 6. The scraper 7.2 continuously cleans the two side walls of the annular shell 5, thereby preventing solid particles in the flue gas from adhering to and accumulating on the outer wall of the annular shell 5 to ensure the heat exchange effect.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery and reuse device for thermal power generation, comprising a smoke exhaust pipe (1), characterized in that: Also includes: A water heat exchange shell (2), wherein the top and bottom surfaces of the water heat exchange shell (2) are respectively provided with a smoke exhaust elbow (2.5) and a smoke inlet elbow (2.3); A motor (3), the motor (3) being fixed vertically at the center of the bottom surface of the water heat exchange shell (2); A smoke exhaust impeller (4), the smoke exhaust impeller (4) being arranged at the bottom of the inner cavity of the water heat exchange shell (2) and having its center fixedly sleeved on the power output shaft of the motor (3); An annular shell (5), wherein a plurality of the annular shells (5) are concentrically arranged at the top of the inner cavity of the water heat exchange shell (2), a partition (5.1) is provided at one end of the inner cavity of the annular shell (5), and a water inlet joint (5.2) and a water outlet joint (5.3) are respectively provided on the top surface of the annular shell (5) at positions corresponding to both sides of the partition (5.1); A water inlet pipe (8), the water inlet pipe (8) being respectively connected to the water inlet joint (5.2); a water outlet pipe (9), the water outlet pipe (9) being respectively connected to the water outlet joint (5.3), and the water outlet pipe (9) being used to supply water to the boiler; A connecting smoke pipe (10), wherein two ends of the connecting smoke pipe (10) are respectively connected to the smoke exhaust elbow (2.5) and a position close to the bottom end of the smoke exhaust pipe (1); An air heat exchanger (11), the air heat exchanger (11) comprising an annular tube body (11.1) sleeved on the outside of the smoke exhaust pipe (1) in pairs, and a plate-shaped shell (11.2) whose outer ends, top and bottom are respectively connected to the annular tube body (11.1) and respectively extend in the radial direction; An air intake pipe (12), the air intake pipe (12) being connected to the annular pipe body (11.1) at the top of the air heat exchange element (11); An exhaust pipe (13), the exhaust pipe (13) being connected to the annular pipe body (11.1) at the bottom of the air heat exchange element (11), and the air at the output end of the exhaust pipe (13) being used to preheat boiler fuel; An air pump (15), wherein an output end of the air pump (15) is connected to an input end of the air intake pipe (12); The peripheral wall of the smoke exhaust tube (1) is provided with a strip groove (1.2.1) that is plugged and matched with the plate-shaped shell (11.2).

2. The waste heat recovery and reuse equipment for thermal power generation according to claim 1, characterized in that: The water heat exchange shell (2) comprises a tank body (2.1), a plurality of legs (2.4) whose top end is fixed to the bottom of the tank body (2.1), and a top cover (2.2) fixedly connected to the top of the tank body (2.1); the smoke inlet elbow (2.3) is connected to one side of the bottom surface of the tank body (2.1); the bottom end of the smoke exhaust elbow (2.5) is connected to the middle of the top surface of the top cover (2.2); the water inlet pipe (8) and the water outlet pipe (9) are respectively sleeved on the two side walls of the top cover (2.2) near the outer ends; and the top of the motor (3) is fixed to the center of the bottom surface of the tank body (2.1).

3. The waste heat recovery and reuse equipment for thermal power generation according to claim 1, characterized in that: It also includes a support member (6) fixedly sleeved on the top end of the power output shaft of the motor (3) and a cleaning member (7) whose bottom end is fixed to the support member (6) and is used to clean the inner and outer peripheral walls of the annular housing (5), the support member (6) including a disk body (6.1) fixedly sleeved on the top end of the power output shaft of the motor (3) at the center and a strip plate (6.2) radially fixed to the two side walls of the disk body (6.1), a plurality of sleeve holes (6.2.1) being provided in the middle of the strip plate (6.2) along its axial direction, the cleaning member (7) including a vertical rod (7.1), a screw rod (7.3) fixedly connected to the bottom end of the vertical rod (7.1) and sleeved in the sleeve hole (6.2.1), a locking nut (7.4) threadedly sleeved on the bottom end of the screw rod (7.3), and a plurality of scrapers (7.2) fixed to the outer peripheral wall of the vertical rod (7.1).

4. The waste heat recovery and reuse equipment for thermal power generation according to claim 1, characterized in that: The smoke exhaust pipe (1) comprises a base (1.1), a vertical pipe (1.2) whose bottom end is fixedly connected to the top of the base (1.1), and an air inlet (1.3) connected to the bottom end of the side wall of the vertical pipe (1.2) and connected to the output end of the connecting smoke pipe (10), and a plurality of groups of strip grooves (1.2.1) are evenly arranged vertically on the peripheral wall of the vertical pipe (1.2).

5. The waste heat recovery and reuse equipment for thermal power generation according to claim 2, characterized in that: A support plate (16) is radially fixed to the top of the inner cavity of the tank body (2.1); the tops of the inner and outer side walls of the annular shell (5) are respectively provided with connecting plates (5.5) fixedly connected to the support plate (16); both ends of the support plate (16) are respectively provided with arc-shaped plates (16.1) that fit the top of the inner circumferential wall of the tank body (2.1); and the arc-shaped plates (16.1) are fixedly connected to the side walls of the tank body (2.1) by bolts.

6. The waste heat recovery and reuse equipment for thermal power generation according to claim 1, characterized in that: A connecting air pipe (14) is connected between the input end of the air intake pipe (12) and the output end of the air pump (15).

7. The waste heat recovery and reuse equipment for thermal power generation according to claim 1, characterized in that: A plurality of fins (5.4) extending in the circumferential direction are fixed on the inner peripheral wall of the annular housing (5).

8. The waste heat recovery and reuse equipment for thermal power generation according to claim 1, characterized in that: The smoke exhaust impeller (4) comprises a sleeve (4.1) fixedly mounted on the power output shaft of the motor (3), blades (4.2) whose inner ends are radially fixed to the outer peripheral wall of the sleeve (4.1), and a slewing bearing (4.3) whose inner peripheral wall of a rotating inner ring is fixedly connected to the outer end of the blade (4.2) and whose outer ring is fixed to the bottom of the inner peripheral wall of the water heat exchange shell (2).

9. The waste heat recovery and reuse equipment for thermal power generation according to claim 1, characterized in that: The bottom of the water inlet pipe (8) is fixedly connected to a position corresponding to the water inlet joint (5.2), and a connecting sleeve (8.2) that matches the threaded sleeve of the water inlet joint (5.2) is rotatably sleeved on the bottom end of the branch pipe (8.1). The bottom of the water outlet pipe (9) is fixedly connected to a position corresponding to the water outlet joint (5.3), and a connecting sleeve (9.2) that matches the threaded sleeve of the water outlet joint (5.3) is rotatably sleeved on the bottom end of the branch pipe (9.1).

10. The waste heat recovery and reuse equipment for thermal power generation according to claim 1, characterized in that: The annular tube body (11.1) comprises semi-annular tubes (11.1.1) connected in pairs, the inner circumferential wall of the semi-annular tubes (11.1.1) being evenly provided with a plurality of insertion holes (11.1.3) along the circumferential direction, a can (11.1.2) being fixed to the middle of the outer circumferential wall of one of the semi-annular tubes (11.1.1), and insertion tubes (11.2.1) that are plugged and matched with the insertion holes (11.1.3) being fixed to the top and bottom ends of the outer end side walls of the plate-shaped shell (11.2).

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