Waste heat recovery device for thermal power plant

Abstract

The invention discloses a waste heat recovery device for a thermal power plant, and relates to the technical field of waste heat recovery devices. The device comprises a support mechanism, the support mechanism comprises a recovery cabin, a heat preservation assembly is arranged in the recovery cabin, a quantity control assembly is arranged in an air outlet pipe, a filter assembly is arranged on the left side of the quantity control assembly and comprises a supporting frame, and a filter screen is arranged in the air outlet pipe. According to the invention, the filter assembly is arranged, specifically, a motor II is started to drive a filter screen to move together, the filter screen extrudes a spring when moving, the spring generates a certain resilience force through a supporting block and drives the filter screen to reset, and meanwhile, the vibration effect of the filter screen is realized; and dust in the heat energy is filtered, meanwhile, the situation that a filter screen is blocked is avoided, the practicability of the equipment is greatly improved, meanwhile, the purity of the heat energy is greatly improved, and the utilization rate of energy is further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of waste heat recovery devices, and in particular relates to a waste heat recovery device used in a thermal power plant. Background Art

[0002] A thermal power plant is a factory that uses coal, oil, and natural gas as fuel to produce electricity. It is widely used in various production fields. It is generally equipped with a waste heat recovery device to conduct heat at the exhaust pipe position. When the waste heat recovery device of the existing thermal power plant converts and transports hot gas, its gas transmission pipeline is easily mixed with impurities such as smoke inside the incineration device, which greatly reduces the purity of the hot gas converted into thermal energy, and at the same time greatly reduces the reuse rate of energy and the practicality of the equipment. Therefore, a waste heat recovery device for a thermal power plant is proposed. Summary of the invention

[0003] The object of the present invention is to provide a waste heat recovery device for a thermal power plant. By setting a filtering component, specifically starting a second motor to drive a turntable to rotate together, when the turntable rotates, it will drive the filter to move together through the support rod, then the filter will squeeze the spring when it moves, and at the same time, the spring will generate a certain rebound force through the support block and drive the filter to reset, while achieving the effect of filter vibration, filtering dust in the heat energy while avoiding the clogging of the filter, solving the problem that a thermal power plant is a factory that uses coal, oil and natural gas as fuel to produce electricity, and it is widely used in various production fields. It is generally adapted to the waste heat recovery device to conduct heat at the exhaust pipe position. When the waste heat recovery device of the existing thermal power plant converts and transports hot gas, its gas transmission pipeline is easily mixed with impurities such as smoke and dust inside the incineration device, which greatly reduces the purity of the hot gas converted into heat energy, and at the same time greatly reduces the reuse rate of energy, and greatly reduces the practicality of the equipment.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a waste heat recovery device for a thermal power plant, comprising a support mechanism, the support mechanism comprising a recovery cabin, an air outlet pipe is fixedly connected to the left side of the recovery cabin, an air inlet pipe is fixedly connected to the right side of the recovery cabin, a heat preservation component is arranged inside the recovery cabin, a quantity control component is arranged inside the air outlet pipe, a filter component is arranged on the left side of the quantity control component, the filter component comprises a support frame, the inside of the support frame is fixedly connected to the left side of the outer surface of the air outlet pipe, a filter screen is arranged inside the air outlet pipe, a rotating shaft three is rotatably connected to the top of the air outlet pipe, the rotating shaft three penetrates the support frame and extends to the top, a motor two is fixedly connected to the top of the support frame, an output end at the bottom of the motor two is fixedly connected to the top of the rotating shaft three through a coupling, the start motor two drives the turntable to rotate together, when the turntable rotates, the filter screen is driven to move together through the support rod, and the filter screen will squeeze the spring when it moves, and at the same time, the spring will generate a certain rebound force through the support block and drive the filter screen to reset, and at the same time, the filter screen vibration effect is achieved, dust in the heat energy is filtered and the filter screen is prevented from being blocked.

[0005] Furthermore, the four corners of the filter are slidably connected with sliding rods, the parts connected by the four sliding rods are the same, the four sliding rods are arranged in a circular array, the left and right sides of the outer surface of the sliding rod are fixedly connected with support blocks, and the two sides of the support blocks away from the sliding rod are fixedly connected to the left and right sides of the inner wall of the outlet pipe. The left and right sides of the outer surface of the sliding rod are sleeved with springs, and the filter will slide on the outer surface of the sliding rod when it moves. Since the support block is fixed to the inner wall of the outlet pipe, the sliding rod plays a certain supporting role on the filter through the support block.

[0006] Furthermore, the two sides of the springs that are away from each other are fixedly connected to the side corresponding to the support block, and the corresponding sides of the two springs are fixedly connected to the left and right sides of the outer surface of the filter screen, and the right side of the filter screen is fixedly connected to a limiting bracket, and a support rod is rotatably connected to the inside of the limiting bracket through a pin shaft, and the right side of the support rod is rotatably connected to a rotating shaft four, and the top of the rotating shaft four is fixedly connected to the bottom of the turntable, and the top of the turntable is fixedly connected to the bottom of the rotating shaft three. When the filter screen squeezes the spring, the spring will shrink through the limiting effect of the support block so that the filter screen can move together with the limiting bracket, and at the same time, the spring will generate a certain rebound force through the support block and drive the filter screen to reset, thereby realizing the reciprocating motion of the filter screen to the left or right.

[0007] Furthermore, the control component includes a motor 1, a motor bracket is fixedly connected to the outer surface of the motor 1, the top of the motor bracket is fixedly connected to the top of the air outlet pipe, a support cover is provided on the right side of the motor 1, and the inner wall of the support cover is fixedly connected to the outer surface of the air outlet pipe. The motor 1 drives the rotating shaft 1 to rotate, and the motor bracket provides a certain support for the motor 1. When the rotating shaft 1 rotates, it drives the gear to rotate, and the ring gear drives the fan blade 2 to rotate through the rotation of the gear.

[0008] Furthermore, the left side of the support cover is rotatably connected with shaft 1, the right side output end of motor 1 is fixedly connected to the left side of shaft 1 through a coupling, a gear is provided on the top of the support cover, the inside of the gear is fixedly connected to the right side of the outer surface of shaft 1, the rotation of the ring gear through the gear will drive the fan blade 2 to rotate, and the rotation of shaft 2 will drive shaft 2 to rotate inside the conical support block, and shaft 2 provides certain support for the ring gear through the conical support block.

[0009] Furthermore, a gear ring is provided inside the air outlet pipe, and the outer surface of the gear ring is meshed with the outer surface of the gear, and a plurality of blades 2 are fixedly connected to the inner wall of the gear ring, and a plurality of the blades 2 are arranged in a circular array, and a plurality of blades 2 are fixedly connected to the corresponding side of the blades 2, and a plurality of blades 1 are arranged on the right side of the blades 2, and a plurality of outer walls of the blades 1 are fixedly connected to the inner wall of the air outlet pipe, and a plurality of blades 1 are fixedly connected to the corresponding side of the blades 1, and the left side inside the conical support block is rotatably connected to the right side of the outer surface of the second rotating shaft, and when the second rotating shaft rotates, it will drive the second rotating shaft to rotate inside the conical support block, and at the same time, the second rotating shaft provides a certain support for the gear ring through the conical support block, and will overlap or misalign with the blade 1 when rotating, so as to adjust the amount of heat energy emission and avoid wasting heat energy.

[0010] Furthermore, the insulation component includes an electric valve, the inner wall of the electric valve is fixedly connected to the outer surface of the intake pipe, an insulation layer 1 is opened inside the recovery cabin, insulation cotton is arranged inside the insulation layer 1, an insulation layer 2 is arranged on the inner circle of the insulation layer 1, a heating pipe is arranged inside the insulation layer 2, four corners of the bottom of the recovery cabin are fixedly connected with legs, the bottoms of the four legs are fixedly connected with a support seat, and the top front of the support seat is fixedly connected with a control panel, the staff starts the heating pipe to heat the inside of the recovery cabin through the control panel, and then the waste heat generated by the power plant enters the recovery cabin from the intake pipe, and the waste heat inside the recovery cabin is further heated by the heating pipe. At the same time, the staff can control the sealing condition of the inside of the recovery cabin through the electric valve, and the insulation cotton plays a certain insulation role on the heat energy inside the recovery cabin while the heating pipe is heating. At the same time, through the effects of the insulation layer 1 and the insulation layer 2, the insulation effect of the inside of the recovery cabin is further improved, and the heat reduction of the waste heat entering the recovery cabin is avoided.

[0011] The present invention has the following beneficial effects: The present invention sets a filter component, specifically, starts the second motor to drive the turntable to rotate. When the turntable rotates, it drives the filter to move through the support rod. When the filter moves, it squeezes the spring. At the same time, the spring will generate a certain rebound force through the support block and drive the filter to reset, thereby achieving the effect of filter vibration, filtering dust in the thermal energy while avoiding clogging of the filter, greatly improving the practicability of the equipment, and at the same time greatly improving the purity of the thermal energy, further improving the utilization rate of energy.

[0012] The present invention sets a control component, specifically, starts motor 1 to drive the gear to rotate, and the ring gear will drive blade 2 to rotate through the gear rotation. When rotating, it will overlap or be misaligned with blade 1, so as to adjust the amount of heat energy emission, avoid wasting heat energy, and further improve the utilization rate of heat energy.

[0013] The present invention provides a heat preservation component, specifically, a control panel to start the heating pipe to heat the inside of the recovery cabin. At the same time, the staff can control the sealing condition of the inside of the recovery cabin through the electric valve. When the heating pipe is heating, the heat preservation cotton has a certain heat preservation effect on the heat energy inside the recovery cabin. At the same time, the heat preservation effect of the inside of the recovery cabin is further improved through the effects of the first and second heat preservation layers, and the heat reduction of the waste heat entering the recovery cabin is avoided, the utilization rate of the waste heat is greatly improved, and the waste of energy is greatly reduced.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the recovery cabin of the present invention; Figure 3 For the present invention Figure 2 A is a schematic diagram of the enlarged structure of the middle part; Figure 4 This is a schematic diagram of the overall structure of a fan blade of the present invention; Figure 5 It is a schematic diagram of the overall structure of the gear ring of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the air outlet pipe of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of B; Figure 8 It is a schematic diagram of the overall structure of the filter screen of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Bracket mechanism; 111. Support seat; 112. Control panel; 113. Legs; 114. Recovery cabin; 115. Inlet pipe; 116. Exhaust pipe; 2. Insulation component; 211. Electric valve; 212. Insulation cotton; 213. Insulation layer 1; 214. Insulation layer 2; 215. Heating pipe; 3. Control component; 311. Motor 1; 312. Support cover; 313. Motor bracket; 314. Fan Blade one; 315, conical support block; 316, gear ring; 317, shaft one; 318, gear; 319, shaft two; 320, blade two; 4, filter assembly; 411, support frame; 412, motor two; 413, shaft three; 414, turntable; 415, support rod; 416, filter screen; 417, limit bracket; 418, shaft four; 419, slide rod; 420, support block; 421, spring. 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 1-8 As shown, the present invention is a waste heat recovery device for a thermal power plant, comprising a support mechanism 1, the support mechanism 1 comprising a recovery cabin 114, an air outlet pipe 116 is fixedly connected to the left side of the recovery cabin 114, an air inlet pipe 115 is fixedly connected to the right side of the recovery cabin 114, a heat preservation component 2 is arranged inside the recovery cabin 114, a quantity control component 3 is arranged inside the air outlet pipe 116, a filter component 4 is arranged on the left side of the quantity control component 3, the filter component 4 comprises a support frame 411, the interior of the support frame 411 is fixedly connected to the left side of the outer surface of the air outlet pipe 116, a filter screen 416 is arranged inside the air outlet pipe 116, a rotating shaft three 413 is rotatably connected to the top of the air outlet pipe 116, the rotating shaft three 413 penetrates the support frame 411 and extends to the top, a motor two 412 is fixedly connected to the top of the support frame 411, and the bottom output end of the motor two 412 is fixedly connected to the top of the rotating shaft three 413 through a coupling.

[0020] Starting motor 2 412 drives turntable 414 to rotate together. When turntable 414 rotates, it drives filter 416 to move together through support rod 415. When filter 416 moves, it squeezes spring 421. At the same time, spring 421 will generate a certain rebound force through support block 420 and drive filter 416 to reset, and at the same time achieve the effect of filter 416 vibration, filter dust in thermal energy and avoid clogging of filter 416, which greatly improves the practicability of the equipment, and at the same time greatly improves the purity of thermal energy, and further improves the utilization rate of energy.

[0021] The four corners of the filter 416 are slidably connected to slide bars 419. The four slide bars 419 connect the same parts. The four slide bars 419 are arranged in a circular array. The left and right sides of the outer surfaces of the slide bars 419 are fixedly connected to support blocks 420. The sides of the two support blocks 420 away from the slide bars 419 are fixedly connected to the left and right sides of the inner wall of the exhaust pipe 116. The left and right sides of the outer surface of the slide bars 419 are sleeved with springs 421.

[0022] The sides of the two springs 421 that are away from each other are fixedly connected to the side corresponding to the support block 420, and the corresponding sides of the two springs 421 are fixedly connected to the left and right sides of the outer surface of the filter 416. The right side of the filter 416 is fixedly connected to a limiting bracket 417, and the interior of the limiting bracket 417 is rotatably connected to a support rod 415 through a pin shaft. The right side of the support rod 415 is rotatably connected to a rotating shaft four 418, and the top of the rotating shaft four 418 is fixedly connected to the bottom of the turntable 414, and the top of the turntable 414 is fixedly connected to the bottom of the rotating shaft three 413.

[0023] The quantity control component 3 includes a motor 311, and a motor bracket 313 is fixedly connected to the outer surface of the motor 311. The top of the motor bracket 313 is fixedly connected to the top of the air outlet pipe 116. A support cover 312 is arranged on the right side of the motor 311. The inner wall of the support cover 312 is fixedly connected to the outer surface of the air outlet pipe 116. Specifically, when the motor 311 is started to drive the gear 318 to rotate, the ring gear 316 will drive the fan blade 2 320 to rotate through the rotation of the gear 318. When 239 rotates, it will overlap or misalign with the fan blade 1 314, so as to adjust the amount of heat energy emission, avoid wasting heat energy, and further improve the utilization rate of heat energy.

[0024] The left side of the support cover 312 is rotatably connected to a rotating shaft 317, and the right output end of the motor 311 is fixedly connected to the left side of the rotating shaft 317 through a coupling. A gear 318 is provided at the top of the support cover 312, and the inside of the gear 318 is fixedly connected to the right side of the outer surface of the rotating shaft 317.

[0025] A gear ring 316 is provided inside the air outlet pipe 116, and the outer surface of the gear ring 316 is meshed with the outer surface of the gear 318. A plurality of blades 320 are fixedly connected to the inner wall of the gear ring 316. The plurality of blades 320 are arranged in a circular array, and a rotating shaft 2 319 is fixedly connected to the corresponding side of the plurality of blades 2 320. A blade 1 314 is provided on the right side of the plurality of blades 2 320. The outer walls of the plurality of blades 1 314 are fixedly connected to the inner wall of the air outlet pipe 116, and a conical support block 315 is fixedly connected to the corresponding side of the plurality of blades 1 314. The left side inside the conical support block 315 is rotatably connected to the right side of the outer surface of the rotating shaft 2 319.

[0026] The insulation component 2 includes an electric valve 211, the inner wall of the electric valve 211 is fixedly connected to the outer surface of the air intake pipe 115, an insulation layer 213 is provided inside the recovery cabin 114, insulation cotton 212 is arranged inside the insulation layer 213, an insulation layer 214 is arranged on the inner circle of the insulation layer 1 213, a heating pipe 215 is arranged inside the insulation layer 214, the four corners of the bottom of the recovery cabin 114 are fixedly connected to the support legs 113, the bottom of the four legs 113 is fixedly connected to the support seat 111, and the top front of the support seat 111 is fixedly connected to the control panel 112.

[0027] Specifically, the control panel 112 starts the heating pipe 215 to heat the inside of the recovery cabin 114. At the same time, the staff can control the sealing condition of the inside of the recovery cabin 114 through the electric valve 211. When the heating pipe 215 is heating, the thermal insulation cotton 212 plays a certain thermal insulation role on the heat energy inside the recovery cabin 114. At the same time, the thermal insulation effect of the inside of the recovery cabin 114 is further improved through the effects of the thermal insulation layer 1 213 and the thermal insulation layer 2 214, thereby avoiding the reduction of the heat of the waste heat entering the recovery cabin 114, greatly improving the utilization rate of the waste heat, and greatly reducing the waste of energy.

[0028] A specific application of this embodiment is: when in use, the staff first starts the heating pipe 215 through the control panel 112 to heat the inside of the recovery cabin 114, and then the waste heat generated by the power plant enters the recovery cabin 114 from the air intake pipe 115, and the waste heat inside the recovery cabin 114 is further heated by the heating pipe 215. At the same time, the staff can control the sealing condition of the inside of the recovery cabin 114 through the electric valve 211. While the heating pipe 215 is heating, the thermal insulation cotton 212 plays a certain thermal insulation role on the heat energy inside the recovery cabin 114. At the same time, through the effects of the thermal insulation layer 1 213 and the thermal insulation layer 2 214, the thermal insulation effect of the inside of the recovery cabin 114 is further improved, and the heat of the waste heat entering the recovery cabin 114 is avoided. The heat reduction, the utilization rate of the waste heat, and the energy waste are greatly improved.

[0029] When the waste heat inside the recovery cabin 114 is converted into thermal energy for transportation, when the heat is transported from the inside of the exhaust pipe 116, the staff can start the motor 1 311 to drive the shaft 1 317 to rotate. At the same time, the motor bracket 313 provides a certain support for the motor 1 311. The shaft 1 317 rotates and drives the gear 318 to rotate. The ring gear 316 rotates through the gear 318 to drive the fan blade 2 320 to rotate. The shaft 2 319 rotates and drives the shaft 2 319 to rotate inside the conical support block 315. At the same time, the shaft 2 319 provides a certain support for the ring gear 316 through the conical support block 315. When 239 rotates, it will overlap or misalign with the fan blade 1 314, so as to adjust the amount of heat energy emission, avoid wasting heat energy, and further improve the utilization rate of heat energy.

[0030] While dissipating heat energy, the staff can start motor 2 412 to drive shaft 3 413 to rotate. When shaft 3 413 rotates, it will drive turntable 414 to rotate together. Since support rod 415 is connected to the center of turntable 414, when turntable 414 rotates, it will drive support rod 415 to reciprocate to the left or right. When support rod 415 moves, it will pull limit bracket 417 to move together. At the same time, support rod 415 rotates inside limit bracket 417. When limit bracket 417 moves, it will drive filter screen 416 to move together. When filter screen 416 moves, it will squeeze spring 421. At the same time, when filter screen 416 moves, it will slide on the outer surface of slide bar 419.

[0031] Since the support block 420 is fixed to the inner wall of the exhaust pipe 116, the slide bar 419 supports the filter 416 to a certain extent through the support block 420. When the filter 416 squeezes the spring 421, the spring 421 will shrink through the limiting effect of the support block 420, so that the filter 416 can move together according to the limiting bracket 417. At the same time, the spring 421 will generate a certain rebound force through the support block 420 and drive the filter 416 to reset, thereby realizing the reciprocating motion of the filter 416 to the left or right, and realizing the vibration effect of the filter 416, filtering the dust in the thermal energy while avoiding the blockage of the filter 416, greatly improving the practicability of the equipment, and at the same time greatly improving the purity of the thermal energy, and further improving the utilization rate of energy. At the same time, the support seat 111 supports the recovery cabin 114 to a certain extent through the support legs 113, which greatly improves the stability of the equipment.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A waste heat recovery device for a thermal power plant, comprising a support mechanism (1), the support mechanism (1) comprising a recovery cabin (114), an air outlet pipe (116) being fixedly connected to the left side of the recovery cabin (114), an air inlet pipe (115) being fixedly connected to the right side of the recovery cabin (114), a heat preservation component (2) being arranged inside the recovery cabin (114), a volume control component (3) being arranged inside the air outlet pipe (116), and a filter component (4) being arranged on the left side of the volume control component (3), characterized in that: The filter assembly (4) comprises a support frame (411), the interior of the support frame (411) being fixedly connected to the left side of the outer surface of the air outlet pipe (116), a filter screen (416) being arranged inside the air outlet pipe (116), a rotating shaft (413) being rotatably connected to the top of the interior of the air outlet pipe (116), the rotating shaft (413) penetrating the support frame (411) and extending to the top, a motor (412) being fixedly connected to the top of the support frame (411), and a bottom output end of the motor (412) being fixedly connected to the top of the rotating shaft (413) via a coupling.

2. A waste heat recovery device for a thermal power plant according to claim 1, characterized in that: The four corners of the filter (416) are slidably connected to slide bars (419), the parts connected by the four slide bars (419) are the same, and the four slide bars (419) are arranged in a circular array. The left and right sides of the outer surface of the slide bar (419) are fixedly connected to support blocks (420), and the sides of the two support blocks (420) away from the slide bar (419) are fixedly connected to the left and right sides of the inner wall of the outlet pipe (116), and the left and right sides of the outer surface of the slide bar (419) are sleeved with springs (421).

3. The waste heat recovery device for a thermal power plant according to claim 2, characterized in that: The sides of the two springs (421) that are away from each other are fixedly connected to the side corresponding to the support block (420), and the sides corresponding to the two springs (421) are fixedly connected to the left and right sides of the outer surface of the filter (416). The right side of the filter (416) is fixedly connected to a limit bracket (417), and a support rod (415) is rotatably connected to the inside of the limit bracket (417) via a pin shaft. The right side of the support rod (415) is rotatably connected to a fourth rotating shaft (418), and the top of the fourth rotating shaft (418) is fixedly connected to the bottom of the rotating disk (414), and the top of the rotating disk (414) is fixedly connected to the bottom of the third rotating shaft (413).

4. A waste heat recovery device for a thermal power plant according to claim 3, characterized in that: The control component (3) comprises a motor 1 (311), the outer surface of the motor 1 (311) being fixedly connected to a motor bracket (313), the top of the motor bracket (313) being fixedly connected to the top of an air outlet pipe (116), a support cover (312) being arranged on the right side of the motor 1 (311), the inner wall of the support cover (312) being fixedly connected to the outer surface of the air outlet pipe (116).

5. The waste heat recovery device for a thermal power plant according to claim 4, characterized in that: The left side of the interior of the support cover (312) is rotatably connected to a rotating shaft 1 (317); the right side output end of the motor 1 (311) is fixedly connected to the left side of the rotating shaft 1 (317) via a coupling; a gear (318) is provided at the top of the interior of the support cover (312); the interior of the gear (318) is fixedly connected to the right side of the outer surface of the rotating shaft 1 (317).

6. The waste heat recovery device for a thermal power plant according to claim 5, characterized in that: A gear ring (316) is arranged inside the air outlet pipe (116), and the outer surface of the gear ring (316) is meshed with the outer surface of the gear (318). A plurality of blades 2 (320) are fixedly connected to the inner wall of the gear ring (316), and the plurality of blades 2 (320) are arranged in a circular array. A plurality of blades 2 (320) are fixedly connected to a rotating shaft 2 (319) on one side thereof, and a plurality of blades 2 (320) are arranged on the right side thereof with blades 1 (314). The outer walls of a plurality of blades 1 (314) are fixedly connected to the inner wall of the air outlet pipe (116), and a plurality of blades 1 (314) are fixedly connected to a conical support block (315) on one side thereof, and the left side inside the conical support block (315) is rotatably connected to the right side of the outer surface of the rotating shaft 2 (319).

7. The waste heat recovery device for a thermal power plant according to claim 6, characterized in that: The thermal insulation component (2) comprises an electric valve (211), the inner wall of the electric valve (211) is fixedly connected to the outer surface of the air intake pipe (115), a thermal insulation layer 1 (213) is provided inside the recovery cabin (114), thermal insulation cotton (212) is provided inside the thermal insulation layer 1 (213), a thermal insulation layer 2 (214) is provided inside the thermal insulation layer 1 (213), and a heating pipe (215) is provided inside the thermal insulation layer 2 (214).

8. The waste heat recovery device for a thermal power plant according to claim 7, characterized in that: The four corners of the bottom of the recovery cabin (114) are fixedly connected to supporting legs (113), the bottoms of the four supporting legs (113) are fixedly connected to supporting seats (111), and the top front of the supporting seat (111) is fixedly connected to a control panel (112).

Images