Thermal power generation waste heat recycling device

Abstract

The invention is suitable for the technical field of waste heat recovery, and provides a thermal power generation waste heat recycling device which comprises a base, a power converter is installed at the top of the base, one side of the power converter communicates with a heat exchange box, a pipe body is horizontally installed in the heat exchange box, and a flow speed adjusting mechanism is installed on the pipe body. A heat exchange mechanism is arranged on the front side wall of the pipe body; when the flow speed of the fluid in the pipe body needs to be slowed down, the motor works to drive the four lead screws to rotate, then the four lead screws rotate to enable the first water baffle and the second water baffle to descend and enable the two third water baffles to ascend through the nuts on the four lead screws, and then the liquid in the pipe body flows in an S shape. The resistance is larger, and the flow speed of fluid is greatly reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste heat recovery, and particularly relates to a device for recovering and utilizing waste heat from thermal power generation. Background Art

[0002] A thermal power plant mainly refers to a thermal power generation plant that produces electric energy by using fuels such as coal, petroleum, and natural gas, and mainly converts the heat energy generated by combustion into mechanical energy. A large amount of high-temperature flue gas is generated during the combustion process, so most thermal power plants will use waste heat recovery and utilization devices to improve the energy utilization efficiency.

[0003] The Chinese utility model patent with the publication number CN221990450U discloses a device for recovering and utilizing waste heat from thermal power generation, including: a power conversion box, a waste heat recovery box is arranged at one end of the power conversion box in a matching manner, and a condenser is arranged at one end of the waste heat recovery box in a matching manner. Among them, a power generation mechanism is arranged in the power conversion box, a protective cover is arranged outside the power generation mechanism, a transformer is slidably matched at the top of the protective cover, and the power generation mechanism is electrically matched with the transformer. The transformer can boost the generated current; the above patent can not only realize the recovery and reuse of waste heat but also realize power generation. When high-temperature flue gas is input through the flue gas input pipe, it will blow the blades to rotate. Among them, the speed increaser can increase the rotation speed to promote the generator to generate electricity, so as to achieve the purpose of power generation; the continuously input high-temperature flue gas passes through the power conversion box and enters the waste heat recovery box. After the high-temperature flue gas contacts the serpentine water pipe, the heat exchange of the circulating liquid can be realized.

[0004] However, the above patent has the following deficiencies: 1. The above patent increases the resistance of the pipeline through the serpentine water pipe, further reduces the flow rate of the liquid, enables the flue gas to fully contact the liquid in the pipeline, and thereby improves the heat transfer efficiency. This setting method of the water pipe, although it can improve the heat exchange efficiency, the improvement effect is limited. If the flow rate of the fluid entering the serpentine water pipe is too slow itself, it will directly lead to a slow heat transfer speed. Therefore, how to adjust the flow rate in a timely manner according to specific situations is the key to improving the heat exchange efficiency. Summary of the Invention

[0005] The present invention provides a device for recovering and utilizing waste heat from thermal power generation, aiming to solve the problem that the current waste heat recovery device cannot adjust the flow rate of the water pipe, resulting in the heat exchange efficiency being easily affected.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A thermal power generation waste heat recovery and utilization device comprises a base, a power converter is installed on the top of the base, a heat exchange box is connected to one side of the power converter, a pipe body is horizontally installed inside the heat exchange box, a flow rate regulating mechanism is installed on the pipe body, a heat exchange mechanism is provided on the front side wall of the pipe body, and the heat exchange mechanism is detachably connected to the heat exchange box; the flow rate regulating mechanism comprises an adjusting component 1 for preliminarily regulating the flow rate in the pipe body, an adjusting component 2 for re-regulating the flow rate in the pipe body, and a transmission component for transmitting the driving force in the adjusting component 1 to the adjusting component 2, the adjusting component 1 is located at the top of the pipe body, the adjusting component 2 is located at the bottom of the pipe body, and the transmission component is located on the pipe body; the heat exchange mechanism comprises a heat exchange component for quickly transmitting the high temperature in the flue gas to the pipe body and an adjusting component 3 for adjusting the height of the heat exchange component, the heat exchange component is located on the adjusting component 3, and the adjusting component 3 is located on the base.

[0007] Preferably, the adjusting component 1 includes a top shell, the top shell is located at the top of the tube body and is fixedly connected to the tube body, a motor is installed inside the top shell, a lead screw 1 is installed on the output shaft of the motor, a nut 1 is threadedly connected to the side wall of the lead screw 1, an adjusting plate 1 is installed on the side wall of the nut 1, the adjusting plate 1 is slidably connected to the top shell, a water baffle 1 is provided at the bottom of the adjusting plate 1, one end of the water baffle 1 is fixedly connected to the adjusting plate 1, and the other end of the water baffle 1 passes through the top of the tube body and extends into the interior thereof; in this scheme, a motor is provided, and the motor can drive the lead screw 1 to rotate after working, and the rotating lead screw 1 causes the nut 1 and the water baffle 1 to move upward or downward, thereby completing the operation process of blocking the water flow in the tube body.

[0008] Preferably, a screw 2 is provided on one side of the screw 1, a transmission wheel 1 is sleeved on the top of the screw 2, and the bottom of the screw 2 is rotatably connected to the tube body, and a transmission wheel 2 is sleeved on the output shaft of the motor, and the transmission wheel 1 and the transmission wheel 2 are connected through a transmission belt 1; a nut 2 is threadedly connected to the side wall of the screw 2, and the nut 2 is slidably connected to the top shell, and an adjusting plate 2 is sleeved on the side wall of the nut 2, and the adjusting plate 2 is slidably connected to the top shell, and a water baffle 2 is provided at the bottom of the adjusting plate 2, one end of the water baffle 2 is fixedly connected to the adjusting plate 2, and the other end of the water baffle 2 passes through the top of the tube body and extends into the interior thereof; in this scheme, by arranging a screw 2, the screw 2 can make the water baffle 2 rise or fall through the nut 2 to block the water flow in the tube body again; the transmission wheel 1, the transmission wheel 2 and the transmission belt 1 make the screw 2 rotate with the screw 1 to save the setting of the motor.

[0009] Preferably, the second adjusting component includes a bottom shell which is located at the bottom of the pipe body and fixedly connected to the pipe body. Inside the bottom shell, a third lead screw and a fourth lead screw are vertically arranged. Both the third lead screw and the fourth lead screw are rotatably connected to the pipe body. Threaded nuts three are threadedly connected to the side walls of the third lead screw and the fourth lead screw respectively. Adjusting plates three are sleeved and installed on the side walls of the two threaded nuts three. Both the two adjusting plates three are slidably connected to the bottom shell. Water baffle plates three are installed on the tops of the two adjusting plates three. The tops of the two water baffle plates three penetrate through the bottom of the pipe body and extend into it. In this solution, by setting the third lead screw and the fourth lead screw, the rotation of the third lead screw and the fourth lead screw can drive the water baffle plates three on them to rise or fall, thereby further alleviating the water flow rate.

[0010] Preferably, two guiding plates are further installed inside the top shell. Guiding grooves are formed inside the two guiding plates. Guiding blocks are arranged inside the two guiding grooves. The two guiding blocks are fixedly connected to the adjusting plate one and the adjusting plate two respectively. In this solution, by setting the guiding grooves and the guiding blocks, the freedom degrees of rotation of the threaded nuts one and two are restricted through the above-mentioned guiding grooves, guiding blocks and guiding plates, so that the water baffle plates one and two can move up and down stably.

[0011] Preferably, the transmission component includes a transmission shaft which is vertically arranged inside the pipe body and rotatably connected to the pipe body. A connecting shaft is arranged between the third lead screw and the fourth lead screw. The connecting shaft is rotatably connected to the bottom shell. The top end of the transmission shaft is fixedly connected to the second lead screw. The bottom end of the transmission shaft is fixedly connected to the connecting shaft. A third transmission wheel is sleeved and installed on the side wall of the connecting shaft. A fourth transmission wheel is sleeved and installed on the side wall of the third lead screw. The third transmission wheel and the fourth transmission wheel are connected by a second transmission belt. A fifth transmission wheel is sleeved and installed on the side wall of the connecting shaft. The fifth transmission wheel is located below the fourth transmission wheel. A sixth transmission wheel is sleeved and installed on the side wall of the fourth lead screw. The fifth transmission wheel and the sixth transmission wheel are connected by a third transmission belt. In this solution, by setting the transmission shaft, the connecting shaft and multiple transmission wheels, the work of the motor can quickly drive the four lead screws to rotate, further controlling the lifting of the four water baffle plates to achieve the control of the liquid flow rate inside the pipe body.

[0012] Preferably, the heat exchange component includes heat conduction fins. A plurality of heat conduction fins are provided, and the plurality of heat conduction fins are evenly distributed on the pipe body. The top of the heat exchange box has a top cover, and the top cover and the heat exchange box are detachably connected. The plurality of heat conduction fins are all fixedly connected to the top cover. There is a connecting piece between every two heat conduction fins, and every two heat conduction fins are connected by the connecting piece. In this solution, by providing the heat conduction fins, the heat conduction fins can accelerate the transfer of heat in the flue gas to the relatively low-temperature liquid in the pipe body; the setting of a plurality of heat conduction fins can increase the heat transfer area; the setting of the connecting piece can enable the plurality of heat conduction fins to be connected to each other, so that heat is transferred between the heat conduction fins, thereby avoiding the problem of uneven heat distribution.

[0013] Preferably, the third adjusting component includes a housing. The housing is located on the side of the heat exchange box away from the power converter. The housing is fixedly connected to the base. A lead screw five is vertically arranged inside the housing. Both ends of the lead screw five are rotatably connected to the housing. A nut four is threadedly connected to the side wall of the lead screw five. A lifting block is installed on the side wall of the nut four. A limiting column is vertically arranged inside the lifting block. Both ends of the limiting column are fixedly connected to the housing. A connecting piece is installed on the side of the nut four away from the lifting block. A lifting plate is installed on the side wall of the connecting piece. The lifting plate is fixedly connected to the top cover. In this solution, by providing the lead screw five and the nut four, the rotating lead screw five can make the lifting block on the nut four move up and down on the limiting column, so that a plurality of heat conduction fins can be moved out of the heat exchange box, facilitating the ash cleaning operation of the staff on the heat conduction fins.

[0014] Preferably, a first reduction motor is installed on the rear side wall of the housing. A first transmission gear is installed on the output shaft of the first reduction motor. A second transmission gear is meshed on the side wall of the first transmission gear. The second transmission gear is sleeved and installed on the lead screw five.

[0015] Preferably, a support seat is installed on the front side wall of the heat exchange box. A lead screw six is horizontally arranged inside the support seat. Both ends of the lead screw six are rotatably connected to the support seat. A nut five is threadedly connected to the side wall of the lead screw six. The nut five is slidably connected to the support seat. A horizontal plate is installed on the nut five. A cleaning box is installed on the top of the horizontal plate. A second reduction motor is installed on the side wall of the support seat. The output shaft of the second reduction motor is fixedly connected to the lead screw six. In this solution, by providing the lead screw six and the nut five, the rotating lead screw six can make the nut five move left and right on the support seat, so that the cleaning box can correspond to the heat exchange component that has been moved out, facilitating the heat conduction fins to be soaked in the cleaning box for cleaning.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a flow rate adjustment mechanism, when it is necessary to slow down the flow rate of the fluid in the pipe, the motor can be operated to drive the four lead screws to rotate. Then, the rotation of the four lead screws can cause the first water baffle and the second water baffle to descend and the two third water baffles to ascend through the nuts on them, thereby making the flow of the liquid in the pipe in an S shape. Compared with straight inlet water, this inlet water method has greater resistance and greatly reduces the flow rate of the fluid. When it is necessary to increase the flow rate of the fluid in the pipe, the motor can be operated again to drive the first water baffle and the second water baffle to ascend and the two third water baffles to descend, thereby making the flow of the liquid in the pipe in a straight shape. This device can adjust the flow rate of the fluid in the pipe in a timely manner according to specific conditions, making the residence time of the fluid in the pipe more reasonable and improving its heat exchange effect.

[0017] By setting up a heat exchange mechanism, the heat exchange components in this heat exchange mechanism can increase the heat transfer area and also avoid the problem of uneven heat distribution. The third adjustment component in the heat exchange mechanism can move the heat exchange components out of the heat exchange box. In cooperation with the lateral movement of the cleaning box, the removed heat exchange components can be cleaned to reduce the scale on the heat exchange components, thereby reducing the thermal resistance on the surface of the heat exchange components. This device can effectively improve the heat exchange efficiency on the basis of enhancing the heat exchange effect and reduce energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a partial cross-sectional view of the heat exchange box of the present invention; Figure 3 is a cross-sectional view of the flow rate adjustment mechanism of the present invention; Figure 4 is a partial structural diagram of the first adjustment component of the present invention; Figure 5 is a partial structural diagram of the second adjustment component of the present invention; Figure 6 is a partial structural diagram of the third adjustment component of the present invention; Figure 7 is a partial structural diagram of the fifth lead screw of the present invention; Figure 8 is a cross-sectional view of the support seat of the present invention; In the figure: 1, base; 2, power conversion machine; 3, heat exchange box; 4, pipe body; 5, flow rate regulating mechanism; 6, heat exchange mechanism; 7, support base; 8, lead screw six; 9, nut five; 10, horizontal plate; 11, cleaning box; 12, reduction motor two; 51, adjusting component one; 52, adjusting component two; 53, transmission component; 61, heat exchange component; 62, adjusting component three; 1, top shell; 512, motor; 513, lead screw one; 514, nut one; 515, adjusting plate one; 516, water baffle one; 517, lead screw two; 518, driving wheel one; 519, driving wheel two; 5191, drive belt one; 5192, nut two; 5193, adjusting plate two; 5194, water baffle two; 5195, guide plate; 5196, guide groove; 5197, guide block; 1, bottom shell; 522, lead screw three; 523, lead screw four; 524, nut three; 525, adjusting plate three; 526, water baffle three; 531, transmission shaft; 532, connecting shaft; 533, driving wheel three; 534, driving wheel four; 535, drive belt two; 536, driving wheel five; 537, driving wheel six; 538, drive belt three; 611, heat conducting sheet; 612, top cover; 613, connecting piece; 621, outer shell; 622, lead screw five; 623, nut four; 624, lifting block; 625, limit post; 626, connecting piece; 627, lifting plate; 628, reduction motor one; 629, driving gear one; 630, driving gear two. Specific embodiments

[0020] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0021] Generally, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0022] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] Please refer to Figure 1-8 , a waste heat recovery and utilization device for thermal power generation, including a base 1. A power converter 2 is installed on the top of the base 1. One side of the power converter 2 is communicated with a heat exchange box 3. A pipe body 4 is horizontally installed inside the heat exchange box 3. A flow rate adjusting mechanism 5 is installed on the pipe body 4. A heat exchange mechanism 6 is provided on the front side wall of the pipe body 4. The heat exchange mechanism 6 is detachably connected to the heat exchange box 3. The flow rate adjusting mechanism 5 includes an adjusting component one 51 for initially adjusting the flow rate in the pipe body 4, an adjusting component two 52 for adjusting the flow rate in the pipe body 4 again, and a transmission component 53 for transmitting the driving force in the adjusting component one 51 to the adjusting component two 52. The adjusting component one 51 is located at the top of the pipe body 4, the adjusting component two 52 is located at the bottom of the pipe body 4, and the transmission component 53 is located on the pipe body 4. The heat exchange mechanism 6 includes a heat exchange component 61 for quickly transferring the high temperature in the flue gas into the pipe body 4 and an adjusting component three 62 for adjusting the height of the heat exchange component 61. The heat exchange component 61 is located on the adjusting component three 62, and the adjusting component three 62 is located on the base 1.

[0026] Specifically, the current means of utilizing flue gas is: "absorbing the heat in the flue gas through a liquid", from which two situations of the liquid flowing in the pipeline are extended. First, due to too fast a flow rate, the fluid cannot stay in the pipeline sufficiently, which affects the flow time, resulting in the heat transfer area not being fully utilized, thus affecting the heat exchange effect. Second, due to too slow a flow rate, the heat transfer speed in the pipeline becomes slower, resulting in a decrease in the heat exchange effect.

[0027] Above the pipe body 4, there is a smoke exhaust pipe, which is connected to the heat exchange box 3, so that the flue gas passing through the pipe body 4 is discharged to the next area through this smoke exhaust pipe; one end of the pipe body 4 can be connected to an external liquid outlet, and the other end of the pipe body 4 can be connected to an external liquid inlet. The pipe body 4 is a rectangular pipe. Compared with a cylindrical pipe body 4, the rectangular pipe body 4 can better fit the water baffle, so that the water baffle can be lifted and lowered freely. Of course, seals are provided at the joints between the pipe body 4 and the water baffle to prevent the liquid in the pipe body 4 from flowing out.

[0028] Further, the first adjustment component 51 includes a top shell 511. The top shell 511 is located at the top of the pipe body 4 and is fixedly connected to the pipe body 4. A motor 512 is installed inside the top shell 511. A first lead screw 513 is installed on the output shaft of the motor 512. A first nut 514 is threadedly connected to the side wall of the first lead screw 513. An adjustment plate 515 is installed on the side wall of the first nut 514. The adjustment plate 515 is slidably connected to the top shell 511. A first water baffle 516 is provided at the bottom of the adjustment plate 515. One end of the first water baffle 516 is fixedly connected to the adjustment plate 515, and the other end of the first water baffle 516 penetrates the top of the pipe body 4 and extends into it.

[0029] Specifically, by setting the top shell 511, the top shell 511 can be composed of multiple heat insulation plates (only 5 plates are shown in the figure, and it is actually a box composed of six plates). These heat insulation plates can prevent the heat outside the top shell 511 from being transferred into the top shell 511, prevent the equipment from overheating, and extend the service life of the equipment. The bottom shell 521 can also refer to the top shell 511. At the same time, the top shell 511 and the bottom shell 521 can also prevent impurities in the flue gas from adhering to the lead screw.

[0030] Further, a second lead screw 517 is provided on one side of the first lead screw 513. A first transmission wheel 518 is sleeved on the top of the second lead screw 517. The bottom of the second lead screw 517 is rotatably connected to the pipe body 4. A second transmission wheel 519 is sleeved on the output shaft of the motor 512. The first transmission wheel 518 and the second transmission wheel 519 are connected by a first transmission belt 5191; a second nut 5192 is threadedly connected to the side wall of the second lead screw 517. The second nut 5192 is slidably connected to the top shell 511. An adjustment plate 5193 is sleeved on the side wall of the second nut 5192. The adjustment plate 5193 is slidably connected to the top shell 511. A second water baffle 5194 is provided at the bottom of the adjustment plate 5193. One end of the second water baffle 5194 is fixedly connected to the adjustment plate 5193, and the other end of the second water baffle 5194 penetrates the top of the pipe body 4 and extends into it.

[0031] Furthermore, the adjustment component 2 52 includes a bottom shell 521, which is located at the bottom of the tube body 4 and fixedly connected to the tube body 4. A screw 3 522 and a screw 4 523 are vertically arranged inside the bottom shell 521. The screw 3 522 and the screw 4 523 are both rotatably connected to the tube body 4. The side walls of the screw 3 522 and the screw 4 523 are both threadedly connected with a nut 3 524. The side walls of the two nuts 3 524 are both sleeved with an adjustment plate 3 525. The two adjustment plates 3 525 are both slidably connected to the bottom shell 521. The tops of the two adjustment plates 3 525 are both installed with a water baffle 3 526. The tops of the two water baffle 3 526 pass through the bottom of the tube body 4 and extend into the interior thereof.

[0032] Furthermore, two guide plates 5195 are installed inside the top shell 511. The two guide plates 5195 have guide grooves 5196 inside. The two guide grooves 5196 have guide blocks 5197 inside. The two guide blocks 5197 are fixedly connected to the adjustment plate 1 515 and the adjustment plate 2 5193 respectively.

[0033] Specifically, two guide plates 5195 are also installed in the adjustment component 2 52 , and the two guide plates 5195 are used to provide guidance for the lifting and lowering of the two water retaining plates 3 526 .

[0034] Furthermore, the transmission assembly 53 includes a transmission shaft 531, which is vertically arranged in the tube body 4 and is rotatably connected to the tube body 4. A connecting shaft 532 is provided between the lead screw 3 522 and the lead screw 4 523. The connecting shaft 532 is rotatably connected to the bottom shell 521. The top end of the transmission shaft 531 is fixedly connected to the lead screw 2 517, and the bottom end of the transmission shaft 531 is fixedly connected to the connecting shaft 532. A transmission wheel 3 53 is sleeved on the side wall of the connecting shaft 532. 3. A transmission wheel 4 534 is sleeved on the side wall of the lead screw 3 522, and the transmission wheel 3 533 and the transmission wheel 4 534 are connected by a transmission belt 2 535. A transmission wheel 536 is also sleeved on the side wall of the connecting shaft 532, and the transmission wheel 5 536 is located below the transmission wheel 4 534. A transmission wheel 6 537 is sleeved on the side wall of the lead screw 4 523, and the transmission wheel 5 536 and the transmission wheel 6 537 are connected by a transmission belt 3 538.

[0035] Specifically, by setting the transmission component 53, the transmission component 53 can enable the device to make the first water baffle 516, the second water baffle 5194 and the two third water baffles 526 approach or move away from each other through a single motor 512. Compared with using four motors 512 to separately move the four water baffles, the device can save the setting of motors 512, reduce the setting of motor 512 control buttons, and facilitate the control operation of the staff during the control of the flow rate. The thread directions of the first lead screw 513 and the second lead screw 517 are the same, the thread directions of the third lead screw 522 and the fourth lead screw 523 are the same, and the thread directions of the first lead screw 513 and the third lead screw 522 are opposite. In the scenario of slowing down the liquid flow rate, the four water baffles are arranged in an interlaced manner in the pipe body 4, and can buffer the water flow step by step when the water flow rate is too fast. Compared with the water baffles being arranged opposite to each other, the device can make the water inlet range of the water baffles larger at the same height, and the interlaced water baffles can form an S-shaped water inlet. Compared with straight water inlet, the device has greater resistance and is very suitable for the scenario of slowing down the flow rate.

[0036] Further, the heat exchange component 61 includes heat conducting fins 611. There are multiple heat conducting fins 611, and the multiple heat conducting fins 611 are evenly distributed on the pipe body 4. The top of the heat exchange box 3 has a top cover 612, and the top cover 612 and the heat exchange box 3 are detachably connected. The multiple heat conducting fins 611 are all fixedly connected to the top cover 612, and there is a connecting piece 613 between every two heat conducting fins 611. Every two heat conducting fins 611 are connected by the connecting piece 613.

[0037] Specifically, the bottom of both ends of the top cover 612 has buckles, and the heat exchange box 3 has slots corresponding to the buckles, so that the top cover 612 is installed on the heat exchange box 3 through the buckles and slots. The heat conducting fins 611 are attached to the pipe body 4.

[0038] Further, the third adjusting component 62 includes a housing 621. The housing 621 is located on the side of the heat exchange box 3 away from the power converter 2. The housing 621 is fixedly connected to the base 1. A fifth lead screw 622 is vertically arranged inside the housing 621. Both ends of the fifth lead screw 622 are rotatably connected to the housing 621. A nut 623 is threadedly connected to the side wall of the fifth lead screw 622. A lifting block 624 is installed on the side wall of the nut 623. A limiting post 625 is vertically arranged inside the lifting block 624. Both ends of the limiting post 625 are fixedly connected to the housing 621. A connecting piece 626 is installed on the side of the nut 623 away from the lifting block 624. A lifting plate 627 is installed on the side wall of the connecting piece 626. The lifting plate 627 is fixedly connected to the top cover 612.

[0039] Further, a first reduction motor 628 is installed on the rear side wall of the outer shell 621. A first transmission gear 629 is installed on the output shaft of the first reduction motor 628. A second transmission gear 630 is meshed on the side wall of the first transmission gear 629. The second transmission gear 630 is sleeved and installed on a fifth lead screw 622.

[0040] Specifically, the first transmission gear 629 can be a small gear, and the second transmission gear 630 can be a large gear. Meshing the small gear with the large gear can increase the torque, improve the power output of the mechanical system, and make the mechanical system more easily withstand a larger load, improving the working ability and running stability of the mechanical equipment. The top of the outer shell 621 also has a protective cover, which can reduce dust from adhering to the gears.

[0041] Further, a support seat 7 is installed on the front side wall of the heat exchange box 3. A sixth lead screw 8 is horizontally arranged inside the support seat 7. Both ends of the sixth lead screw 8 are rotatably connected to the support seat 7. A fifth nut 9 is threadedly connected to the side wall of the sixth lead screw 8. The fifth nut 9 is slidably connected to the support seat 7. A horizontal plate 10 is installed on the fifth nut 9. A cleaning box 11 is installed on the top of the horizontal plate 10. A second reduction motor 12 is installed on the side wall of the support seat 7. The output shaft of the second reduction motor 12 is fixedly connected to the sixth lead screw 8.

[0042] Specifically, a chute is provided on the bottom wall inside the support seat 7. A slider is provided in the chute. The slider is fixedly connected to the fifth nut 9. The slider and the chute can provide guidance for the lateral movement of the cleaning box 11.

[0043] In summary, by setting the flow rate regulating mechanism 5, when it is necessary to slow down the flow rate of the fluid in the pipe body 4, the four lead screws can be driven to rotate by the operation of the motor 512. Then, the rotation of the four lead screws can cause the first water baffle 516 and the second water baffle 5194 to descend and the two third water baffles 526 to rise through the nuts on them, so that the liquid flow in the pipe body 4 is in an S shape. Compared with straight water inlet, this water inlet method has greater resistance and greatly reduces the flow rate of the fluid. When it is necessary to increase the flow rate of the fluid in the pipe body 4, the first water baffle 516 and the second water baffle 5194 can be driven to rise and the two third water baffles 526 to descend again by the operation of the motor 512, so that the liquid flow in the pipe body 4 is in a straight shape. This device can adjust the flow rate of the fluid in the pipe body 4 in a timely manner according to specific conditions, make the residence time of the fluid in the pipe body 4 more reasonable, and improve its heat exchange effect. By setting the heat exchange mechanism 6, the heat exchange component 61 in the heat exchange mechanism 6 can increase the heat transfer area and avoid the problem of uneven heat distribution at the same time. The third adjusting component 62 in the heat exchange mechanism 6 can move the heat exchange component 61 out of the heat exchange box 3. Cooperating with the lateral movement of the cleaning box 11, the removed heat exchange component 61 can be cleaned to reduce the scale on the heat exchange component 61, thereby reducing the thermal resistance on the surface of the heat exchange component 61. This device can effectively improve the heat exchange efficiency on the basis of enhancing the heat exchange effect and reduce energy loss.

[0044] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waste heat recovery and utilization device for thermal power generation, comprising a base (1), characterized in that: A power converter (2) is installed on the top of the base (1); one side of the power converter (2) is connected to a heat exchange box (3); a pipe body (4) is installed horizontally inside the heat exchange box (3); a flow rate regulating mechanism (5) is installed on the pipe body (4); a heat exchange mechanism (6) is provided on the front side wall of the pipe body (4); and the heat exchange mechanism (6) is detachably connected to the heat exchange box (3); The flow rate regulating mechanism (5) comprises a regulating component 1 (51) for initially regulating the flow rate in the tube body (4), a regulating component 2 (52) for re-regulating the flow rate in the tube body (4), and a transmission component (53) for transmitting the driving force in the regulating component 1 (51) to the regulating component 2 (52), wherein the regulating component 1 (51) is located at the top of the tube body (4), the regulating component 2 (52) is located at the bottom of the tube body (4), and the transmission component (53) is located on the tube body (4); The heat exchange mechanism (6) comprises a heat exchange component (61) for quickly transferring high temperature in the flue gas to the tube body (4) and an adjustment component three (62) for adjusting the height of the heat exchange component (61); the heat exchange component (61) is located on the adjustment component three (62), and the adjustment component three (62) is located on the base (1).

2. The waste heat recovery and utilization device for thermal power generation according to claim 1, characterized in that: The adjustment component (51) comprises a top shell (511), the top shell (511) being located at the top of the tube body (4) and fixedly connected to the tube body (4), a motor (512) being installed inside the top shell (511), a lead screw (513) being installed on the output shaft of the motor (512), a nut (514) being threadedly connected to the side wall of the lead screw (513), an adjustment plate (515) being installed on the side wall of the nut (514), the adjustment plate (515) being slidably connected to the top shell (511), a water baffle (516) being provided at the bottom of the adjustment plate (515), one end of the water baffle (516) being fixedly connected to the adjustment plate (515), and the other end of the water baffle (516) passing through the top of the tube body (4) and extending into the inside thereof.

3. The waste heat recovery and utilization device for thermal power generation according to claim 2, characterized in that: A second lead screw (517) is provided on one side of the lead screw (513); a transmission wheel (518) is sleeved on the top of the second lead screw (517); a bottom of the second lead screw (517) is rotatably connected to the tube body (4); a second transmission wheel (519) is sleeved on the output shaft of the motor (512); and the first transmission wheel (518) and the second transmission wheel (519) are connected in transmission via a transmission belt (5191); A second lead screw (517) is threadedly connected to the side wall of a second nut (5192). The second nut (5192) is slidably connected to the top shell (511). A second adjusting plate (5193) is sleeved and installed on the side wall of the second nut (5192). The second adjusting plate (5193) is slidably connected to the top shell (511). A second water baffle (5194) is provided at the bottom of the second adjusting plate (5193). One end of the second water baffle (5194) is fixedly connected to the second adjusting plate (5193). The other end of the second water baffle (5194) penetrates through the top of the pipe body (4) and extends into it.

4. The waste heat recovery and utilization device for thermal power generation according to claim 3, wherein: The second adjusting assembly (52) includes a bottom shell (521). The bottom shell (521) is located at the bottom of the pipe body (4) and is fixedly connected to the pipe body (4). A third lead screw (522) and a fourth lead screw (523) are vertically arranged inside the bottom shell (521). Both the third lead screw (522) and the fourth lead screw (523) are rotatably connected to the pipe body (4). A third nut (524) is threadedly connected to the side walls of both the third lead screw (522) and the fourth lead screw (523). A third adjusting plate (525) is sleeved and installed on the side walls of both the third nuts (524). Both the third adjusting plates (525) are slidably connected to the bottom shell (521). A third water baffle (526) is installed at the top of both the third adjusting plates (525). The tops of both the third water baffles (526) penetrate through the bottom of the pipe body (4) and extend into it.

5. The waste heat recovery and utilization device for thermal power generation according to claim 3, characterized in that: Two guide plates (5195) are further installed inside the top shell (511). Guide grooves (5196) are formed inside both the guide plates (5195). Guide blocks (5197) are provided inside both the guide grooves (5196). The two guide blocks (5197) are fixedly connected to the first adjusting plate (515) and the second adjusting plate (5193) respectively.

6. The waste heat recovery and utilization device for thermal power generation according to claim 4, wherein: The transmission assembly (53) comprises a transmission shaft (531), the transmission shaft (531) being vertically arranged in the tube body (4) and being rotatably connected to the tube body (4), a connecting shaft (532) being provided between the lead screw 3 (522) and the lead screw 4 (523), the connecting shaft (532) being rotatably connected to the bottom shell (521), the top end of the transmission shaft (531) being fixedly connected to the lead screw 2 (517), the bottom end of the transmission shaft (531) being fixedly connected to the connecting shaft (532), and a transmission wheel 3 (531) being sleeved and mounted on the side wall of the connecting shaft (532). 533), a transmission wheel four (534) is sleeved and installed on the side wall of the lead screw three (522), and the transmission wheel three (533) and the transmission wheel four (534) are connected to each other through a transmission belt two (535). A transmission wheel five (536) is also sleeved and installed on the side wall of the connecting shaft (532), and the transmission wheel five (536) is located below the transmission wheel four (534). A transmission wheel six (537) is sleeved and installed on the side wall of the lead screw four (523), and the transmission wheel five (536) and the transmission wheel six (537) are connected to each other through a transmission belt three (538).

7. The waste heat recovery and utilization device for thermal power generation according to claim 1, characterized in that: The heat exchange component (61) comprises a heat conductive sheet (611), a plurality of the heat conductive sheets (611) are provided, and the plurality of the heat conductive sheets (611) are evenly distributed on the tube body (4); the top of the heat exchange box (3) is provided with a top cover (612), the top cover (612) and the heat exchange box (3) are detachably connected, the plurality of the heat conductive sheets (611) are fixedly connected to the top cover (612), a connecting sheet (613) is provided between every two of the heat conductive sheets (611), and every two of the heat conductive sheets (611) are connected via the connecting sheet (613).

8. The waste heat recovery and utilization device for thermal power generation according to claim 7, wherein: The regulating component three (62) comprises a housing (621), the housing (621) being located on a side of the heat exchange box (3) away from the power converter (2), the housing (621) being fixedly connected to the base (1), a lead screw five (622) being vertically arranged inside the housing (621), both ends of the lead screw five (622) being rotatably connected to the housing (621), a nut four (623) being threadedly connected to the side wall of the lead screw five (622), the nut four (623) being threadedly connected to the side wall of the lead screw five (622), and the nut four (623) being threadedly connected to the side wall of the lead screw five (622). A lifting block (624) is installed on the side wall of the fourth (623), and a limiting column (625) is vertically arranged inside the lifting block (624). Both ends of the limiting column (625) are fixedly connected to the shell (621). A connecting piece (626) is installed on the side of the nut fourth (623) away from the lifting block (624), and a lifting plate (627) is installed on the side wall of the connecting piece (626). The lifting plate (627) is fixedly connected to the top cover (612).

9. The waste heat recovery and utilization device for thermal power generation according to claim 8, characterized in that: A first reduction motor (628) is installed on the rear side wall of the housing (621). A first transmission gear (629) is installed on the output shaft of the first reduction motor (628). A second transmission gear (630) is meshed on the side wall of the first transmission gear (629). The second transmission gear (630) is sleeved and installed on the fifth lead screw (622).

10. The waste heat recovery and utilization device for thermal power generation according to claim 1, characterized in that: A support seat (7) is installed on the front side wall of the heat exchange box (3). A sixth lead screw (8) is horizontally arranged inside the support seat (7). Both ends of the sixth lead screw (8) are rotatably connected to the support seat (7). A fifth nut (9) is threadedly connected to the side wall of the sixth lead screw (8). The fifth nut (9) is slidably connected to the support seat (7). A horizontal plate (10) is installed on the fifth nut (9). A cleaning box (11) is installed on the top of the horizontal plate (10). A second reduction motor (12) is installed on the side wall of the support seat (7). The output shaft of the second reduction motor (12) is fixedly connected to the sixth lead screw (8).

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