Gas power generation waste heat recycling device

Abstract

The invention relates to the technical field of heat exchangers, in particular to a gas power generation waste heat recycling device which comprises a heat exchanger and a U-shaped heat exchange pipe, a pair of partition plates is fixedly connected to the inner side of the heat exchanger, and a water inlet pipe and a water outlet pipe are arranged on one side of the heat exchanger. And meanwhile, locking of the mounting plate is relieved, then the U-shaped heat exchange pipe is automatically pulled out of the heat exchanger, and therefore automatic dismounting of the U-shaped heat exchange pipe is achieved, the U-shaped heat exchange pipe can be automatically pushed out of the L-shaped plate to fall into a collecting box after being pulled out, and on the contrary, a new U-shaped heat exchange pipe only needs to be inserted into the L-shaped plate and is matched with an upper electric telescopic cylinder, and the U-shaped heat exchange pipe can be automatically dismounted. And a new U-shaped heat exchange tube can be automatically inserted back and locked and fixed, so that the U-shaped heat exchange tube can be quickly disassembled and assembled without being disassembled and assembled after being cooled, and the convenience performance of the device is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchangers, and particularly to a waste heat recovery and utilization device for gas power generation. Background Art

[0002] During the gas power generation process, a large amount of heat energy is generated. This heat energy can be recovered and utilized in various ways to improve energy utilization efficiency, reduce operating costs and environmental pollution. Mainly, a comprehensive energy system is constructed in a gas power plant to integrate waste heat recovery technologies, achieve co-generation of multiple forms of energy such as electric energy and heat energy, improve energy efficiency, and reduce emissions.

[0003] In the prior art, there is a heat exchanger with the publication number of CN117006863B that is convenient for replacing heat exchange tubes. This heat exchanger is provided with a special valve plate and adjustment components on the replaceable hot water pipe, so that after the inside of the replaceable hot water pipe is scaled, the scaled replaceable water heater can be smoothly replaced without stopping the liquid circulation inside the heat exchanger, reducing the descaling time and ensuring the smooth progress of the heat exchange process. This device is provided with a structure for adjusting the sealing ring between the connecting water pipe and the replaceable hot water pipe. Through this structure, the deformation amplitude of the sealing ring can be increased, and the sealing performance between the replaceable hot water pipe and the connecting water pipe can be increased.

[0004] Although the above device is convenient for quickly replacing the heat exchange tubes of the heat exchanger, there are still some defects in the actual use process. Since the heat exchange tubes of this heat exchanger need to be disassembled and assembled by workers for replacement, however, the number of heat exchange tubes is large, and each time of replacement, it is necessary to wait for the heat exchange tubes to cool down before replacement, otherwise it is easy to scald the workers, greatly improving the safety performance of the device and at the same time affecting the maintenance efficiency of the device.

[0005] Therefore, a waste heat recovery and utilization device for gas power generation is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to propose a waste heat recovery and utilization device for gas power generation to solve the drawbacks existing in the background art.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows: A waste heat recovery and utilization device for gas power generation, comprising a heat exchanger and U-shaped heat exchange tubes. A pair of partitions are fixedly connected to the inner side of the heat exchanger. A water inlet pipe and a water outlet pipe are respectively arranged on one side of the heat exchanger. A plurality of installation slots are equidistantly arranged on the other side of the heat exchanger. Slots adapted to the U-shaped heat exchange tubes are arranged on the side walls of the partitions at positions beside the installation slots. A plurality of U-shaped heat exchange tubes are provided, and all the plurality of U-shaped heat exchange tubes pass through the installation slots and are inserted into the slots. An installation plate adapted to the installation slots is fixedly connected to the outer wall of the U-shaped heat exchange tube. A pair of insertion frames are fixedly connected to the side wall of the installation plate. A blanking plate is arranged beside the heat exchanger. A moving frame is slidably connected to the blanking plate. A sliding plate is slidably connected to the inner side of the moving frame. A pair of L-shaped plates for inserting into the insertion frames are fixedly connected to the side wall of the sliding plate. A locking mechanism for locking the U-shaped heat exchange tubes is arranged on the heat exchanger. A moving mechanism for driving the sliding plate to move is arranged on the blanking plate.

[0008] In the above technical solution, further, the locking mechanism includes side frames. A plurality of side frames are provided, and all the plurality of side frames are fixedly connected to the positions beside the installation slots on the rear side of the heat exchanger. Locking blocks are slidably connected to the inner sides of the side frames. A U-shaped frame is fixedly connected to the side wall of the locking block. A pair of upper right-angle blocks with inclined surfaces are fixedly connected to the side wall of the installation plate. The side wall of the U-shaped frame is inclined at a position beside the upper right-angle block. A pair of sliding rods are slidably connected through the side wall of the locking block. A lower right-angle block with an inclined surface is fixedly connected between one ends of the sliding rods. A plurality of locking right-angle blocks with inclined surfaces are fixedly connected to the inner side of the side frame. An unlocking plate is fixedly connected between the other ends of the sliding rods. An L-shaped unlocking rod is fixedly connected to the side wall of the sliding plate. The side wall of the unlocking rod is inclined. An upper electric telescopic cylinder is fixedly connected to the top end of the moving frame. A pull rod is fixedly connected to the output end of the upper electric telescopic cylinder.

[0009] In the above technical solution, further, a pair of locking springs are fixedly connected between the inner side of the side frame and the side wall of the locking block. The side wall of the unlocking plate is set as a smooth arc surface. A pair of upper springs are fixedly connected between the side wall of the lower right-angle block and the side wall of the locking block.

[0010] In the above technical solution, further, the moving mechanism includes an upper screw rod. Side plates are fixedly connected to both sides of the outer wall of the blanking plate. The upper screw rod is rotatably connected between the side plates. A moving block is fixedly connected to the side wall of the moving frame. The upper screw rod penetrates through and is threadedly connected to the inner side wall of the moving block. A moving motor is fixedly connected to the side wall of one of the side plates. The output end of the moving motor passes through the side plate and is fixedly connected to the side wall of the upper screw rod. A lower electric telescopic cylinder is fixedly connected to the side wall of the moving frame. The output end of the lower electric telescopic cylinder passes through the moving frame and is fixedly connected to the side wall of the sliding plate.

[0011] In the above technical solution, further, an L-shaped seat is fixedly connected to the top end of the blanking plate and away from one side of the heat exchanger. A positioning plate is rotatably connected inside the L-shaped seat. A top groove is formed at the top end of the blanking plate, and a collection box is fixedly connected to the bottom end of the top groove.

[0012] In the above technical solution, further, sealing gaskets made of high-temperature resistant materials are fixedly connected to the outer walls of the U-shaped heat exchange tubes at positions beside the partition plates. Side tubes are fixedly connected to the side walls of the water inlet pipe and the water outlet pipe at positions beside the installation grooves, and the side walls of the side tubes penetrate through the inside of the heat exchanger. Conical sealing rings are fixedly connected to the side walls of the side tubes.

[0013] In the above technical solution, further, a moving frame is provided on the outer wall of the blanking plate. Lifting plates are fixedly connected to both sides of the moving frame. The lifting plates are slidably connected to the outer wall of the moving frame. Lower screws are rotatably connected to the inside of both sides of the moving frame. The lower screws penetrate through and are threadedly connected to the inside of the lifting plates. A pair of lifting motors are fixedly connected to the top end of the moving frame. The output ends of the lifting motors pass through the moving frame and are fixedly connected to the top ends of the lower screws. A U-shaped plate is fixedly connected to the side of the moving frame close to the heat exchanger.

[0014] In the above technical solution, further, a positioning rod is fixedly connected to the side wall of the heat exchanger. A clamping groove is formed on the outer wall of the positioning rod. A positioning groove is formed at the position of the side wall of the U-shaped plate corresponding to the positioning rod. A positioning frame is fixedly connected to the inside of the U-shaped plate. A clamping plate for inserting into the clamping groove is slidably connected to the inside of the positioning frame. A plurality of positioning springs are fixedly connected between the side wall of the clamping plate and the inside of the positioning frame. Universal wheels with brakes are fixedly connected to the four corners of the bottom end of the moving frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the settings of the moving frame, the upper electric telescopic cylinder, the moving mechanism and the locking mechanism, the present invention can first insert the L-shaped plate into the insertion frame, and at the same time release the locking of the mounting plate, and then automatically pull out the U-shaped heat exchange tube from the heat exchanger, so as to realize the automatic removal of the U-shaped heat exchange tube. And after pulling out, it can automatically push the U-shaped heat exchange tube out of the L-shaped plate and fall into the collection box. On the contrary, only need to insert the new U-shaped heat exchange tube on the L-shaped plate, and through the mutual cooperation with the upper electric telescopic cylinder, it can automatically insert and lock the new U-shaped heat exchange tube, so as to realize the quick disassembly and assembly of the U-shaped heat exchange tube, without waiting for cooling for disassembly and assembly, greatly improving the convenience performance of the device.

[0016] 2. Through the settings of the lifting motor, the lower screw and the lifting plate and other structures, the present invention can automatically adjust the position of the disassembly and assembly mechanism, so as to automatically disassemble and assemble all the U-shaped heat exchange tubes on the heat exchanger, and will not affect the normal operation of the disassembly and assembly mechanism, further improving the general performance of the device.

[0017] 3. Through the arrangement of structures such as positioning rods, positioning frames and clamping plates, the present invention can not only achieve rapid positioning and fixation between the moving frame and the heat exchanger, but also, after the disassembly, replacement and assembly of the U-shaped heat exchange tubes on the heat exchanger are completed, the moving frame can be pushed to move, positioned beside other heat exchangers, and the U-shaped heat exchange tubes on this heat exchanger can be disassembled and assembled, improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front three-dimensional structural schematic diagram of the heat exchange device of the present invention; Figure 2 is a rear three-dimensional structural schematic diagram of the heat exchange device of the present invention; Figure 3 is a front full-sectional three-dimensional structural schematic diagram of the heat exchange device of the present invention; Figure 4 is an attached Figure 3 is a partial enlarged structural schematic diagram at A in the figure; Figure 5 is a three-dimensional structural schematic diagram of the separation of the heat exchanger and the U-shaped heat exchange tubes of the present invention; Figure 6 is a three-dimensional structural schematic diagram of the separation of the side frame and the locking block of the present invention; Figure 7 is a partial top three-dimensional structural schematic diagram of the moving frame of the present invention; Figure 8 is a partial side three-dimensional structural schematic diagram of the moving frame of the present invention; Figure 9 is an overall external structural schematic diagram of the loading plate of the present invention.

[0019] In the figure: 1. Heat exchanger; 2. U-shaped heat exchange tube; 3. Partition board; 4. Water inlet pipe; 5. Water outlet pipe; 6. Installation groove; 7. Installation plate; 8. Insertion frame; 9. Unloading plate; 10. Moving frame; 11. Slide plate; 12. L-shaped plate; 13. Side frame; 14. Locking block; 15. U-shaped frame; 16. Upper right-angle block; 17. Slide rod; 18. Lower right-angle block; 19. Locking right-angle block; 20. Unlocking plate; 21. Unlocking rod; 22. Upper electric telescopic cylinder; 23. Pull rod; 24. Locking spring; 25. Upper spring; 26. Upper screw rod; 27. Side plate; 28. Moving block; 29. Moving motor; 30. Lower electric telescopic cylinder; 31. L-shaped seat; 32. Positioning plate; 33. Sealing gasket; 34. Side pipe; 35. Collection box; 36. Moving frame; 37. Lifting plate; 38. Lower screw rod; 39. Lifting motor; 40. U-shaped plate; 41. Positioning rod; 42. Positioning frame; 43. Clamping plate; 44. Positioning spring; 45. Universal wheel. DETAILED DESCRIPTION OF THE INVENTION

[0020] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0022] As Figures 1-9 shown, a waste heat recovery and utilization device for gas power generation includes a heat exchanger 1 and U-shaped heat exchange tubes 2. A pair of partition plates 3 are fixedly connected to the inner side of the heat exchanger 1. A water inlet pipe 4 and a water outlet pipe 5 are respectively arranged on one side of the heat exchanger 1. A plurality of installation slots 6 are equidistantly opened on the other side of the heat exchanger 1. Slots adapted to the U-shaped heat exchange tubes 2 are opened on the side walls of the partition plates 3 at positions beside the installation slots 6. A plurality of U-shaped heat exchange tubes 2 are provided, and all the U-shaped heat exchange tubes 2 pass through the installation slots 6 and are inserted into the slots. Mounting plates 7 adapted to the installation slots 6 are fixedly connected to the outer walls of the U-shaped heat exchange tubes 2. A pair of insertion frames 8 are fixedly connected to the side walls of the mounting plates 7. Sealing gaskets 33 made of high-temperature resistant materials are fixedly connected to the outer walls of the U-shaped heat exchange tubes 2 at positions beside the partition plates 3. It should be noted here that the sizes of the sealing gaskets 33 on the U-shaped heat exchange tubes 2 beside the partition plates 3 are different. The sealing gasket 33 on the side closer to the mounting plate 7 is larger than the sealing gasket 33 on the other side. And the size of the slot on the side closer to the mounting plate 7 is larger than the size of the small-sized sealing gasket 33, which avoids affecting the normal insertion of the U-shaped heat exchange tubes 2 and ensures the sealing performance after locking. Side pipes 34 are fixedly connected to the side walls of the water inlet pipe 4 and the water outlet pipe 5 at positions beside the installation slots 6, and the side walls of the side pipes 34 penetrate through the inside of the heat exchanger 1. Conical sealing rings are fixedly connected to the side walls of the side pipes 34. Through the setting of the conical sealing rings, the sealing performance after the docking of the U-shaped heat exchange tubes 2 and the side pipes 34 can be ensured; When the heat exchanger 1 is in use, the heat energy generated during gas power generation enters from above the heat exchanger 1. At this time, an external cold water pipe is connected between the water inlet pipe 4, and an external drain pipe is connected between the water outlet pipe 5. Subsequently, external cold water enters the water inlet pipe 4, and then enters the U-shaped heat exchange tubes 2 through the side pipes 34. Thus, heat exchange is carried out between the heat energy inside the heat exchanger 1 and the cold water in the U-shaped heat exchange tubes 2, realizing the waste heat recovery and utilization of gas power generation. Subsequently, the water after heat exchange is discharged through the side pipes 34 and the water outlet pipe 5 on the other side.

[0023] There is a blanking plate 9 beside the heat exchanger 1. A moving frame 10 is slidably connected to the blanking plate 9. A sliding plate 11 is slidably connected to the inner side of the moving frame 10. A pair of L-shaped plates 12 for inserting into the insertion frame 8 are fixedly connected to the side wall of the sliding plate 11. A locking mechanism for locking the U-shaped heat exchange tube 2 is provided on the heat exchanger 1. A moving mechanism for driving the sliding plate 11 to move is provided on the blanking plate 9. The locking mechanism includes side frames 13. There are several side frames 13, and several side frames 13 are all fixedly connected to the position beside the installation groove 6 on the rear side of the heat exchanger 1. A locking block 14 is slidably connected to the inner side of each side frame 13. A U-shaped frame 15 is fixedly connected to the side wall of the locking block 14. A pair of upper right-angle blocks 16 with inclined surfaces are fixedly connected to the side wall of the installation plate 7. The side wall of the U-shaped frame 15 is inclined at a position beside the upper right-angle block 16. A pair of sliding rods 17 are slidably connected through the side wall of the locking block 14. A lower right-angle block 18 with an inclined surface is fixedly connected between one ends of the sliding rods 17. Several locking right-angle blocks 19 with inclined surfaces are fixedly connected to the inner side of the side frame 13, and the inclined surface of the lower right-angle block 18 is in contact with the inclined surface of the locking right-angle block 19. An unlocking plate 20 is fixedly connected between the other ends of the sliding rods 17. An L-shaped unlocking rod 21 is fixedly connected to the side wall of the sliding plate 11, and the side wall of the unlocking rod 21 is inclined; A pair of locking springs 24 are fixedly connected between the inner side of the side frame 13 and the side wall of the locking block 14. The locking springs 24 facilitate pulling the unlocked locking block 14 to quickly reset. The side wall of the unlocking plate 20 is set as a smooth arc surface, which facilitates the inclined surface of the unlocking rod 21 to more smoothly squeeze the unlocking plate 20 to move for quick unlocking. A pair of upper springs 25 are fixedly connected between the side wall of the lower right-angle block 18 and the side wall of the locking block 14; The moving mechanism includes an upper screw rod 26. Side plates 27 are fixedly connected to both sides of the outer wall of the blanking plate 9. The upper screw rod 26 is rotatably connected between the side plates 27. A moving block 28 is fixedly connected to the side wall of the moving frame 10. The upper screw rod 26 is threadedly connected through the inner side wall of the moving block 28. A moving motor 29 is fixedly connected to the side wall of one of the side plates 27. The output end of the moving motor 29 passes through the side plate 27 and is fixedly connected to the side wall of the upper screw rod 26. A lower electric telescopic cylinder 30 is fixedly connected to the side wall of the moving frame 10. The output end of the lower electric telescopic cylinder 30 passes through the moving frame 10 and is fixedly connected to the side wall of the sliding plate 11; During the regular maintenance of the U-shaped heat exchange tube 2, when it is necessary to disassemble and replace the U-shaped heat exchange tube 2, first control the moving motor 29 to start and drive the upper screw rod 26 to rotate, then drive the moving block 28 connected by threads to move, and at the same time drive the moving frame 10 and the sliding plate 11 to move towards the heat exchanger 1. Then move the L-shaped plate 12 to the side of the insertion frame 8. Subsequently, control the lower electric telescopic cylinder 30 to start and drive the sliding plate 11 to slide within the moving frame 10, and at the same time drive the L-shaped plate 12 to insert into the insertion frame 8. During this process, when the moving motor 29 drives the moving frame 10 to the side of the mounting plate 7, it will drive the unlocking rod 21 to move to the side of the unlocking plate 20. Furthermore, the movement of the sliding plate 11 will drive the unlocking rod 21 to move, so that the inclined surface of the unlocking rod 21 squeezes the arc surface of the unlocking plate 20 (at this time, the lower right-angle block 18 is inserted between the locking right-angle blocks 19 and cannot move horizontally. Therefore, under the extrusion of the inclined surface of the unlocking rod 21, the unlocking plate 20 can only slide longitudinally). Thereby driving the unlocking plate 20, the sliding rod 17 and the lower right-angle block 18 to slide, and gradually compressing the upper spring 25. Then drive the lower right-angle block 18 to move out from between the locking right-angle blocks 19, thereby releasing the position restriction on the locking block 14. Subsequently, under the elastic force of the locking spring 24, pull the locking block 14 to reset. At the same time, the lower electric telescopic cylinder 30 will drive the unlocking rod 21 to move, so that the unlocking rod 21 will move along with the unlocking plate 20, and the U-shaped frame 15 will move away from the upper right-angle block 16, thereby releasing the locking of the mounting plate 7. At this time, the L-shaped plate 12 is completely inserted into the insertion frame 8 (it should be noted here that when unlocking, the locking spring 24 will pull the lower right-angle block 18 away from the locking right-angle block 19, and then drive the unlocking plate 20 to move away from the unlocking rod 21, which will not affect the normal displacement of the subsequent unlocking rod 21). Then control the moving motor 29 to reverse, drive the moving frame 10 to move in the reverse direction, and then pull out the mounting plate 7 and the U-shaped heat exchange tube 2 from the heat exchanger 1 (at this time, the L-shaped plate 12 is tightly inserted into the insertion frame 8, so the U-shaped heat exchange tube 2 will be pulled out vertically), thereby realizing the automatic disassembly of the U-shaped heat exchange tube 2.

[0024] In order to be able to automatically remove the disassembled U-shaped heat exchange tube 2 and automatically install a new U-shaped heat exchange tube 2, an L-shaped seat 31 is fixedly connected to the top end of the blanking plate 9 and on the side far from the heat exchanger 1. A positioning plate 32 is rotatably connected to the inner side of the L-shaped seat 31. A top groove is opened at the top end of the blanking plate 9, and a collection box 35 is fixedly connected to the bottom end of the top groove. It should be noted here that a buffer pad can be provided at the bottom end of the collection box 35 to prevent the U-shaped heat exchange tube 2 from being damaged when it falls. An upper electric telescopic cylinder 22 is fixedly connected to the top end of the moving frame 10, and a pull rod 23 is fixedly connected to the output end of the upper electric telescopic cylinder 22; During the process of pulling out the U-shaped heat exchange tube 2 by reversing the moving motor 29, the moving frame 10 will be driven to pass by the positioning plate 32. Then, when the moving frame 10 passes by, it will push the positioning plate 32 to flip around the hinge. Subsequently, after the moving frame 10 moves away from below the positioning plate 32, the positioning plate 32 will turn down and reset under its own gravity. Then, the L-shaped plate 12 will move the U-shaped heat exchange tube 2 to the designated position. At this time, the positioning plate 32 is beside the U-shaped heat exchange tube 2. Then, the lower electric telescopic cylinder 30 can be controlled to start resetting, driving the sliding plate 11 to move back, and at the same time driving the L-shaped plate 12 to be pulled out of the insertion frame 8 (at this time, the U-shaped heat exchange tube 2 is beside the positioning plate 32 and is restricted, so it cannot move with the L-shaped plate 12, thus ensuring that the L-shaped plate 12 is pulled out of the insertion frame 8). Subsequently, when the L-shaped plate 12 is completely pulled out of the insertion frame 8, the restriction on the U-shaped heat exchange tube 2 will be released, and then it will fall under its own gravity into the collection box 35 below; Then, control the lower electric telescopic cylinder 30 to start and push the sliding plate 11 back. Subsequently, insert the insertion frame 8 on the new U-shaped heat exchange tube 2 onto the L-shaped plate 12. Control the moving motor 29 to start and insert the U-shaped heat exchange tube 2 into the heat exchanger 1. When the mounting plate 7 is completely inserted into the mounting groove 6, the lower electric telescopic cylinder 30 can be controlled to start resetting and pull the L-shaped plate 12 out of the insertion frame 8. Then, control the upper electric telescopic cylinder 22 to start and drive the pull rod 23 to move. At this time, the pull rod 23 will pull the U-shaped frame 15 to move, thereby driving the locking block 14 and the U-shaped frame 15 to move. At this time, the sliding rod 17 and the lower right-angle block 18 will move. When the lower right-angle block 18 moves beside the locking right-angle block 19, the inclined surface of the locking right-angle block 19 will squeeze the inclined surface of the lower right-angle block 18; Furthermore, it squeezes the lower right-angle block 18 and the sliding rod 17 to slide longitudinally, compresses the upper spring 25, and gradually stretches the locking spring 24. Repeating this process, it gradually pushes the U-shaped frame 15 to move, and the vertical surface of the locking right-angle block 19 will restrict the lower right-angle block 18 from moving back under the pulling force of the locking spring 24. At the same time, the inclined surface at the side end of the U-shaped frame 15 will gradually squeeze the inclined surface of the upper right-angle block 16, thereby pushing the upper right-angle block 16 and the mounting plate 7 to move, and gradually compressing the sealing gasket 33 and the tapered sealing ring at the end of the side tube 34, ensuring the sealing performance of the connection between the U-shaped heat exchange tube 2 and the side tube 34, and at the same time improving the sealing effect between the inside and outside of the heat exchanger 1, thus realizing the automatic installation of the U-shaped heat exchange tube 2.

[0025] In order to automatically disassemble and assemble all the U-shaped heat exchange tubes 2 on the heat exchanger 1, a moving frame 36 is provided on the outer wall of the blanking plate 9. Both sides of the moving frame 36 are fixedly connected with lifting plates 37. The lifting plates 37 are slidably connected to the outer wall of the moving frame 36. Lower screw rods 38 are rotatably connected to the inner parts on both sides of the moving frame 36. The lower screw rods 38 all penetrate through and are threadedly connected to the inner sides of the lifting plates 37. A pair of lifting motors 39 are fixedly connected to the top of the moving frame 36. The output ends of the lifting motors 39 all pass through the moving frame 36 and are fixedly connected to the tops of the lower screw rods 38. A U-shaped plate 40 is fixedly connected to one side of the moving frame 36 close to the heat exchanger 1; When the disassembly of the bottom U-shaped heat exchange tube 2 is completed, the moving motor 29 can be controlled to start and drive the lower screw rod 38 to rotate, thereby driving the threadedly connected lifting plate 37 to move, and at the same time driving the blanking plate 9 to move upward, so as to drive the moving frame 10 and the sliding plate 11 to move upward. At this time, the pull rod 23 will move upward beside the U-shaped frame 15 without being blocked. Then, the disassembly and assembly position is moved to the next U-shaped heat exchange tube 2, and the above operations can be repeated for disassembly and assembly.

[0026] To improve the flexibility of the device, a positioning rod 41 is fixedly connected to the side wall of the heat exchanger 1. A card slot is opened on the outer wall of the positioning rod 41. A positioning slot is opened at the position of the side wall of the U-shaped plate 40 relative to the positioning rod 41. A positioning frame 42 is fixedly connected to the inner side of the U-shaped plate 40. A clamping plate 43 for inserting into the card slot is slidably connected to the inner side of the positioning frame 42. A plurality of positioning springs 44 are fixedly connected between the side wall of the clamping plate 43 and the inner side of the positioning frame 42. Universal wheels 45 with brakes are fixedly connected to the four corners of the bottom end of the moving frame 36; When the U-shaped heat exchange tubes 2 on this heat exchanger 1 are replaced and it is necessary to replace the U-shaped heat exchange tubes 2 on other heat exchangers 1, first release the brakes on the universal wheels 45, and then pull the clamping plates 43 on both sides out of the card slots, while compressing the positioning springs 44, so as to release the limit between the U-shaped plate 40 and the positioning rod 41. Then, pull the moving frame 36 to move through the universal wheels 45, pull the positioning rod 41 out of the positioning slot, and then release the clamping plates 43. Then, move the moving frame 36 to the side of another heat exchanger 1 and repeat the above operations in reverse to fix the position of the moving frame 36, so that the position of the blanking plate 9 can be flexibly changed, and the U-shaped heat exchange tubes 2 on multiple heat exchangers 1 can be automatically disassembled and assembled, improving the flexibility of the device.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention.

[0028] Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A waste heat recovery and utilization device for gas power generation, comprising a heat exchanger (1) and a U-shaped heat exchange tube (2), characterized in that: A pair of partitions (3) are fixedly connected to the inner side of the heat exchanger (1). A water inlet pipe (4) and a water outlet pipe (5) are respectively arranged on one side of the heat exchanger (1). A plurality of installation grooves (6) are equidistantly formed on the other side of the heat exchanger (1). Slots adapted to the U-shaped heat exchange tubes (2) are formed on the side walls of the partitions (3) beside the installation grooves (6). A plurality of U-shaped heat exchange tubes (2) are provided, and all the plurality of U-shaped heat exchange tubes (2) pass through the installation grooves (6) and are inserted into the slots. An installation plate (7) adapted to the installation grooves (6) is fixedly connected to the outer wall of the U-shaped heat exchange tube (2). A pair of insertion frames (8) are fixedly connected to the side wall of the installation plate (7). A blanking plate (9) is arranged beside the heat exchanger (1). A moving frame (10) is slidably connected to the blanking plate (9). A sliding plate (11) is slidably connected to the inner side of the moving frame (10). A pair of L-shaped plates (12) for inserting into the insertion frames (8) are fixedly connected to the side wall of the sliding plate (11). A locking mechanism for locking the U-shaped heat exchange tubes (2) is arranged on the heat exchanger (1). A moving mechanism for driving the sliding plate (11) to move is arranged on the blanking plate (9).

2. The waste heat recovery and utilization device for gas power generation according to claim 1, characterized in that: The locking mechanism includes side frames (13). A plurality of side frames (13) are provided, and all the plurality of side frames (13) are fixedly connected to the positions beside the installation grooves (6) at the rear side of the heat exchanger (1). Locking blocks (14) are slidably connected to the inner sides of the side frames (13). A U-shaped frame (15) is fixedly connected to the side wall of the locking block (14). A pair of upper right-angle blocks (16) with inclined surfaces are fixedly connected to the side wall of the installation plate (7). The side wall of the U-shaped frame (15) is inclined beside the upper right-angle blocks (16). A pair of sliding rods (17) are slidably connected through the side wall of the locking block (14). A lower right-angle block (18) with an inclined surface is fixedly connected between one ends of the sliding rods (17). A plurality of locking right-angle blocks (19) with inclined surfaces are fixedly connected to the inner side of the side frame (13). An unlocking plate (20) is fixedly connected between the other ends of the sliding rods (17). An L-shaped unlocking rod (21) is fixedly connected to the side wall of the sliding plate (11). The side wall of the unlocking rod (21) is inclined. An upper electric telescopic cylinder (22) is fixedly connected to the top end of the moving frame (10). A pull rod (23) is fixedly connected to the output end of the upper electric telescopic cylinder (22).

3. The waste heat recovery and utilization device for gas power generation according to claim 2, characterized in that: A pair of locking springs (24) are fixedly connected between the inner side of the side frame (13) and the side wall of the locking block (14). The side wall of the unlocking plate (20) is set as a smooth arc surface. A pair of upper springs (25) are fixedly connected between the side wall of the lower right-angle block (18) and the side wall of the locking block (14).

4. A waste heat recovery and utilization device for gas power generation according to claim 1, characterized in that: The moving mechanism includes an upper screw rod (26). Both sides of the outer wall of the blanking plate (9) are fixedly connected with side plates (27). The upper screw rod (26) is rotatably connected between the side plates (27). A moving block (28) is fixedly connected to the side wall of the moving frame (10). The upper screw rod (26) passes through and is threadedly connected to the inner side wall of the moving block (28). A moving motor (29) is fixedly connected to the side wall of one of the side plates (27). The output end of the moving motor (29) passes through the side plate (27) and is fixedly connected to the side wall of the upper screw rod (26). A lower electric telescopic cylinder (30) is fixedly connected to the side wall of the moving frame (10). The output end of the lower electric telescopic cylinder (30) passes through the moving frame (10) and is fixedly connected to the side wall of the sliding plate (11).

5. The waste heat recovery and utilization device for gas power generation according to claim 1, characterized in that: An L-shaped seat (31) is fixedly connected to the top of the blanking plate (9) and on the side away from the heat exchanger (1). A positioning plate (32) is rotatably connected inside the L-shaped seat (31). A top groove is formed at the top of the blanking plate (9). A collection box (35) is fixedly connected to the bottom end of the top groove.

6. The waste heat recovery and utilization device for gas power generation according to claim 1, wherein: Sealing gaskets (33) made of high-temperature resistant materials are fixedly connected to the outer walls of the U-shaped heat exchange tubes (2) at positions beside the partition plates (3). Side tubes (34) are fixedly connected to the side walls of the water inlet pipe (4) and the water outlet pipe (5) at positions beside the installation grooves (6). The side tubes (34) penetrate through the inside of the heat exchanger (1). Conical sealing rings are fixedly connected to the side walls of the side tubes (34).

7. A waste heat recovery and utilization device for gas power generation according to claim 1, characterized in that: A moving frame (36) is arranged on the outer wall of the blanking plate (9). Lifting plates (37) are fixedly connected to both sides of the moving frame (36). The lifting plates (37) are slidably connected to the outer wall of the moving frame (36). Lower screw rods (38) are rotatably connected to the inside of both sides of the moving frame (36). The lower screw rods (38) all pass through and are threadedly connected to the inside of the lifting plates (37). A pair of lifting motors (39) are fixedly connected to the top of the moving frame (36). The output ends of the lifting motors (39) all pass through the moving frame (36) and are fixedly connected to the tops of the lower screw rods (38). A U-shaped plate (40) is fixedly connected to the side of the moving frame (36) close to the heat exchanger (1).

8. A waste heat recovery and utilization device for gas power generation according to claim 7, characterized in that: A positioning rod (41) is fixedly connected to the side wall of the heat exchanger (1). A card slot is formed on the outer wall of the positioning rod (41). A positioning slot is formed at the position of the side wall of the U-shaped plate (40) corresponding to the positioning rod (41). A positioning frame (42) is fixedly connected to the inside of the U-shaped plate (40). A clamping plate (43) for inserting into the card slot is slidably connected to the inside of the positioning frame (42). A plurality of positioning springs (44) are fixedly connected between the side wall of the clamping plate (43) and the inside of the positioning frame (42). Universal wheels (45) with brakes are fixedly connected to the four corners of the bottom end of the moving frame (36).

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