An intelligent steam reheater for thermal power generation

Abstract

The present invention relates to the technical field of steam reheaters, and specifically to an intelligent steam reheater for thermal power generation, comprising a shell, a reheating structure, a mounting structure, a filtering structure, a sealing structure, a scraping structure, a steam drum, a water-cooled wall, an economizer, a condenser and a superheater; the arrangement of the reheating structure facilitates reheating of water vapor with insufficient temperature in a steam turbine, the arrangement of the filtering structure facilitates filtering of various impurities, thereby preventing the impurities from gradually depositing on a heat exchange surface after entering a reheater body and reducing the heat exchange efficiency, while also avoiding problems such as corrosion and blockage of the reheater body, the arrangement of the mounting structure facilitates rapid removal of a mounting plate from the shell, thereby improving the efficiency of assembly and disassembly of the reheater body, while cooperating with a sliding frame to drive the mounting plate downward to reduce the height of the reheater body, and the arrangement of the scraping structure facilitates scraping of dust on the reheater body, thereby preventing dust from reducing the heat exchange efficiency of the reheater body.

Description

Technical Field

[0001] The invention relates to the technical field of steam reheaters, in particular to an intelligent steam reheater for thermal power generation. Background Art

[0002] As a major form of electricity production, thermal power generation is based on the basic principle of generating high-temperature heat energy through fuel combustion, converting water into steam in the boiler, and using the thermal energy of the steam to drive the turbine to rotate, thereby driving the generator to generate electricity. In the process of thermal power generation, steam reheaters came into being. Their main function is to reheat the low-pressure steam discharged from the high-pressure cylinder of the turbine, increase the temperature and work-doing capacity of the steam, and enable it to do work more effectively in the low-pressure cylinder of the turbine, thereby significantly improving the thermal efficiency of the thermal power generation system.

[0003] However, the existing steam reheater and turbine pipeline connection part lacks an effective filtering device. The steam discharged from the high-pressure cylinder of the steam turbine into the reheater often carries various impurities. After entering the reheater, these impurities will gradually deposit, reducing the heat exchange efficiency, and the long-term accumulation of impurities may also cause corrosion and blockage of the reheater pipeline. In addition, the steam reheater is usually installed inside the shell in a complex installation method. When the reheater fails and needs to be repaired or replaced, it often takes a lot of time and manpower to disassemble and reinstall, resulting in low disassembly and assembly efficiency. At the same time, a large amount of dust is easily attached to the surface of the steam reheater. These dusts attached to the surface of the steam reheater will not only reduce the heat exchange efficiency of the reheater, resulting in poor steam reheating effect, but also accelerate the corrosion of the reheater and heat exchange components. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides an intelligent steam reheater for thermal power generation.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an intelligent steam reheater for thermal power generation, comprising a shell, a reheating structure installed on the shell, a mounting structure arranged between the reheating structure and the shell, a filtering structure installed on the reheating structure, and a scraping structure installed in the reheating structure;

[0006] The reheat structure comprises a mounting plate detachably connected to the shell and a reheater body mounted on the mounting plate, the shell is fixedly connected to a fixing plate, a steam turbine is mounted on the fixing plate, two first connecting pipes are mounted on the steam turbine, one of the first connecting pipes is fixedly connected to a second connecting pipe, and two third connecting pipes are mounted on the reheater body;

[0007] The filtering structure includes an installation box fixedly connected to another first connecting tube and a filter frame detachably connected to the installation box, a second connecting tube is fixedly connected to the installation box, two second connecting tubes respectively interfere with two third connecting tubes, a filter net is installed in the filter frame, a connecting block is fixedly connected to the installation box, a stopper is slidably connected to the connecting block, the stopper is slidably connected to the filter frame, a slider is slidably connected in the stopper, a third screw rod is rotatably connected in the stopper, and the slider is threadedly connected to the third screw rod.

[0008] Specifically, a guide column is fixedly connected to the connecting block, the stop block is slidably connected to the guide column, a spring is fixedly connected between the stop block and the guide column, a rotating rod is fixedly connected to the third screw rod, a sealing ring is fixedly connected to the filter frame, and the sealing ring is engaged with the installation box.

[0009] Specifically, the mounting structure includes two guide sleeves fixedly connected to the shell and guide rods slidably connected to the guide sleeves, an adjustment frame is fixedly connected between the two guide rods, a sliding frame is slidably connected to the adjustment frame, two mounting blocks are slidably connected in the sliding frame, and the mounting blocks are engaged with the mounting plate.

[0010] Specifically, a second screw rod is rotatably connected in the sliding frame, the mounting block is threadedly connected to the second screw rod, the threads at both ends of the second screw rod have opposite directions, a second motor is installed on the sliding frame, and the second screw rod is fixedly connected to the output shaft of the second motor.

[0011] Specifically, a first screw rod is rotatably connected to the adjusting frame, the sliding frame is threadedly connected to the first screw rod, a first motor is installed on the adjusting frame, the first screw rod is fixedly connected to the output shaft of the first motor, a first hydraulic rod is installed on the shell, the adjusting frame is fixedly connected to the telescopic end of the first hydraulic rod, a guide shaft is fixedly connected inside the adjusting frame, and the sliding frame is slidably connected to the guide shaft.

[0012] Specifically, the scraping structure includes a sliding rod slidably connected to the mounting plate and a plurality of mounting rods fixedly connected to the sliding rod, a plurality of scraping rings are fixedly connected to the mounting rod, and the scraping rings are slidably connected to the reheater body.

[0013] Specifically, a connecting plate is slidably connected to the mounting plate, the mounting rod is fixedly connected to the connecting plate, the mounting rod is fixedly connected to the connecting plate, a third hydraulic rod is installed in the mounting plate, and the connecting plate is fixedly connected to the telescopic end of the third hydraulic rod.

[0014] Specifically, the second connecting tube and the third connecting tube are sealed by a sealing structure, and the sealing structure includes a slip ring slidably connected in the second connecting tube and a sealing ring fixedly connected to the slip ring, the sealing ring is slidably connected to the second connecting tube, and the sealing ring is engaged with the third connecting tube.

[0015] Specifically, two connecting columns are fixedly connected to the slip ring, and the connecting columns are slidably connected to the second connecting pipe. Connecting rods are fixedly connected to the two connecting columns. Two second hydraulic rods are installed on the shell, and the two connecting rods are fixedly connected to the telescopic ends of the two second hydraulic rods respectively.

[0016] Specifically, a steam drum is installed in the shell, a water-cooled wall is installed in the shell, an economizer is installed in the shell, a superheater is installed in the shell, and a condenser is installed on the fixed plate.

[0017] The beneficial effects of the present invention are:

[0018] (1) The intelligent steam reheater for thermal power generation described in the present invention has a reheating structure on its shell, and a filtering structure on the reheating structure. The reheating structure is convenient for reheating the water vapor with insufficient temperature in the steam turbine, and the filtering structure is convenient for filtering various impurities to prevent the impurities from entering the reheater body and gradually depositing on the heat exchange surface to reduce the heat exchange efficiency, and at the same time avoid causing corrosion, blockage and other problems of the reheater body.

[0019] (2) In the intelligent steam reheater for thermal power generation described in the present invention, a mounting structure is provided between the reheating structure and the shell, and the second connecting pipe and the third connecting pipe are sealed by a sealing structure. The setting of the mounting structure facilitates the rapid removal of the mounting plate from the shell, thereby improving the disassembly and assembly efficiency of the reheater body. At the same time, the sliding frame drives the mounting plate to move downward, which can reduce the height of the reheater body and reduce the difficulty of operation. The setting of the sealing structure facilitates the improvement of the sealing between the third connecting pipe and the second connecting pipe.

[0020] (3) The intelligent steam reheater for thermal power generation described in the present invention has a scraping structure in the reheating structure. The scraping structure is convenient for scraping dust on the reheater body, thereby preventing dust from adhering to the reheater body and reducing the heat exchange efficiency of the reheater body, resulting in poor steam reheating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of an intelligent steam reheater for thermal power generation provided by the present invention;

[0023] Figure 2 for Figure 1 An enlarged schematic diagram of the structure of section A is shown;

[0024] Figure 3 It is a schematic diagram of the connection structure between the filter frame and the installation frame of the present invention;

[0025] Figure 4 for Figure 3 An enlarged schematic diagram of the structure of part B is shown;

[0026] Figure 5 It is a schematic diagram of the connection structure between the mounting plate and the housing of the present invention;

[0027] Figure 6 It is a schematic diagram of the connection structure between the reheater body and the shell of the present invention;

[0028] Figure 7 It is a schematic diagram of the connection structure between the connecting rod and the second hydraulic rod of the present invention;

[0029] Figure 8 It is a schematic diagram of the connection structure between the sealing ring and the slip ring of the present invention;

[0030] Fig. 9 It is a schematic diagram of the connection structure between the connecting rod and the mounting rod of the present invention;

[0031] Fig.10 for Fig. 9 An enlarged schematic diagram of the C-section structure is shown;

[0032] Fig.11 It is a schematic diagram of the connection structure between the sliding frame and the adjusting frame of the present invention;

[0033] Fig.12 for Fig.11 An enlarged schematic diagram of the D structure is shown.

[0034] In the figure: 1, shell; 2, reheat structure; 201, mounting plate; 202, reheater body; 203, fixing plate; 204, steam turbine; 205, first connecting pipe; 206, second connecting pipe; 207, third connecting pipe; 3, mounting structure; 301, guide sleeve; 302, guide rod; 303, adjustment frame; 304, first hydraulic rod; 305, sliding frame; 306, first screw rod; 307, first motor; 308, guide shaft; 309, mounting block; 310, second screw rod; 311, second motor; 4, filtering structure; 401, mounting box; 402, Filter frame; 403, filter screen; 404, connecting block; 405, stopper; 406, guide column; 407, spring; 408, slider; 409, third screw rod; 410, rotating rod; 411, sealing ring; 5, sealing structure; 501, sliding ring; 502, sealing ring; 503, connecting column; 504, connecting rod; 505, second hydraulic rod; 6, scraping structure; 601, sliding rod; 602, mounting rod; 603, scraping ring; 604, connecting plate; 605, third hydraulic rod; 7, steam drum; 8, water-cooled wall; 9, economizer; 10, condenser; 11, superheater. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig.11 and Fig.12As shown, an intelligent steam reheater for thermal power generation described in the present invention comprises a shell 1, a reheat structure 2 installed on the shell 1, a mounting structure 3 arranged between the reheat structure 2 and the shell 1, a filtering structure 4 installed on the reheat structure 2, and a scraping structure 6 installed in the reheat structure 2; the reheat structure 2 comprises a mounting plate 201 detachably connected to the shell 1 and a reheater body 202 installed on the mounting plate 201, a fixing plate 203 is fixedly connected to the shell 1, a steam turbine 204 is installed on the fixing plate 203, two first connecting pipes 205 are installed on the steam turbine 204, one of the first connecting pipes 205 is fixedly connected to the second connecting pipe 206, and two first connecting pipes 206 are installed on the reheater body 202 a third connecting tube 207; the filtering structure 4 includes an installation box 401 fixedly connected to another first connecting tube 205 and a filter frame 402 detachably connected to the installation box 401, the installation box 401 is fixedly connected with a second connecting tube 206, and two of the second connecting tubes 206 respectively conflict with two third connecting tubes 207, a filter net 403 is installed in the filter frame 402, a connecting block 404 is fixedly connected to the installation box 401, a stopper 405 is slidably connected to the connecting block 404, the stopper 405 is slidably connected to the filter frame 402, a slider 408 is slidably connected in the stopper 405, a third screw rod 409 is rotatably connected to the stopper 405, and the slider 408 is threadedly connected to the third screw rod 409.

[0037] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the connecting block 404 is fixedly connected with a guide column 406, the stopper 405 is slidably connected with the guide column 406, a spring 407 is fixedly connected between the stopper 405 and the guide column 406, a rotating rod 410 is fixedly connected to the third screw rod 409, a sealing ring 411 is fixedly connected to the filter frame 402, and the sealing ring 411 is engaged with the installation box 401, a steam drum 7 is installed in the shell 1, a water-cooled wall 8 is installed in the shell 1, an economizer 9 is installed in the shell 1, a superheater 11 is installed in the shell 1, a condenser 10 is installed on the fixed plate 203, and firstly, the water-cooled wall 8 is heated by the burner. The water in the water-cooled wall 8 is heated by the pipeline, and the water vapor in the water-cooled wall 8 enters the steam drum 7 through the pipeline. The water vapor that reaches the required temperature enters the superheater 11. The heat generated by the burner further heats the superheater 11 to form superheated steam. The superheated steam enters the steam turbine 204 through the pipeline and drives the rotor of the steam turbine 204 to rotate. If the water vapor temperature in the steam turbine 204 is not high enough, it enters the second connecting pipe 206 through the installation box 401 through one of the first connecting pipes 205, and then returns to the reheater body 202 from the second connecting pipe 206 and the third connecting pipe 207 to be heated again. The heated steam passes through another A third connecting pipe 207 and a second connecting pipe 206 enter into another first connecting pipe 205, and then enter into the steam turbine 204 from the first connecting pipe 205, and various impurities are filtered through the filter 403 to prevent the impurities from entering the reheater body 202 and gradually depositing on the heat exchange surface to reduce the heat exchange efficiency, and at the same time avoid causing corrosion, blockage and other problems of the reheater body 202. When the filter 403 needs to be disassembled for replacement or cleaning, the third screw rod 409 is driven to rotate by the rotating rod 410, so that the third screw rod 409 drives the slider 408 to no longer press against the filter frame 402, and the slider 408 applies a resistance force to the filter frame 402. The sealing ring 411 can be more tightly engaged with the installation box 401, thereby improving the sealing performance. At the same time, when the slider 408 is no longer pressed against the filter frame 402, the block 405 can be pulled upward. When the block 405 moves upward, it will slide with the guide column 406. The guide column 406 is arranged to make the block 405 slide more smoothly. At the same time, the spring 407 contracts. When the block 405 no longer resists the filter frame 402, the block 405 resists the filter frame 402, which facilitates the rapid installation of the filter frame 402 in the installation box 401, thereby improving the efficiency of disassembling and assembling the filter net 403 when the filter net 403 needs to be disassembled.

[0038] Specifically, Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig.11 and Fig.12As shown, the mounting structure 3 includes two guide sleeves 301 fixedly connected to the housing 1 and guide rods 302 slidably connected to the guide sleeves 301, an adjustment frame 303 is fixedly connected between the two guide rods 302, a slide frame 305 is slidably connected to the adjustment frame 303, two mounting blocks 309 are slidably connected to the slide frame 305, the mounting blocks 309 are engaged with the mounting plate 201, a second screw rod 310 is rotatably connected to the slide frame 305, the mounting block 309 is threadedly connected to the second screw rod 310, the threads at both ends of the second screw rod 310 are in opposite directions, a second motor 311 is installed on the slide frame 305, the second screw rod 310 is fixedly connected to the output shaft of the second motor 311, the adjusting frame A first screw rod 306 is rotatably connected to the adjusting frame 303, the sliding frame 305 is threadedly connected to the first screw rod 306, a first motor 307 is installed on the adjusting frame 303, the first screw rod 306 is fixedly connected to the output shaft of the first motor 307, a first hydraulic rod 304 is installed on the housing 1, the adjusting frame 303 is fixedly connected to the telescopic end of the first hydraulic rod 304, a guide shaft 308 is fixedly connected inside the adjusting frame 303, the sliding frame 305 is slidably connected to the guide shaft 308, the second connecting pipe 206 and the third connecting pipe 207 are sealed by a sealing structure 5, the sealing structure 5 includes a slip ring 501 slidably connected to the second connecting pipe 206 and a sealing ring fixedly connected to the slip ring 501 502, the sealing ring 502 is slidably connected to the second connecting pipe 206, the sealing ring 502 is engaged with the third connecting pipe 207, two connecting columns 503 are fixedly connected to the sliding ring 501, the connecting column 503 is slidably connected to the second connecting pipe 206, and the two connecting columns 503 are fixedly connected with connecting rods 504. Two second hydraulic rods 505 are installed on the shell 1, and the two connecting rods 504 are respectively fixedly connected to the telescopic ends of the two second hydraulic rods 505. When the reheater body 202 needs to be disassembled for maintenance, the first hydraulic rod 304 can be started, and the telescopic end of the first hydraulic rod 304 is extended to drive the adjustment frame 303 to move, and the adjustment frame 303 drives the guide rod 302 and the guide sleeve 303 to move. 01 sliding, the setting of the guide rod 302 and the guide sleeve 301 makes the movement of the adjustment frame 303 more stable. When the adjustment frame 303 drives the mounting plate 201 and the reheater body 202 to slide out of the shell 1, the first motor 307 can be started. When the output shaft of the first motor 307 rotates, the first screw rod 306 is driven to rotate. When the first screw rod 306 rotates, the thread drives the slide frame 305 to move downward. When the slide frame 305 slides, it will slide with the guide shaft 308. The setting of the guide shaft 308 makes the slide frame 305 slide more smoothly. When the slide frame 305 drives the mounting plate 201 to move downward to a certain position, the mounting plate 201 contacts the ground. The second motor 311 can be started. When the output shaft of the second motor 311 rotates, the second screw rod 310 is driven to rotate.When the second screw rod 310 rotates, the thread drives the two mounting blocks 309 to move in opposite directions, so that the two mounting blocks 309 are no longer engaged with the mounting plate 201. At this time, the reheater body 202 on the mounting plate 201 can be inspected and maintained. The second screw rod 310 drives the two mounting blocks 309 to engage with the mounting plate 201 through the thread, and the adjustment frame 303 and the slide frame 305 are used together to facilitate the quick removal of the mounting plate 201 from the shell 1, thereby improving the disassembly and assembly efficiency of the reheater body 202. At the same time, the slide frame 305 drives the mounting plate 201 to move downward, which can reduce the cost of the reheater body 202. The height of the housing 202 reduces the difficulty of operation. At the same time, when the mounting plate 201 is installed on the housing 1, the second hydraulic rod 505 can be started. When the telescopic end of the second hydraulic rod 505 contracts, the connecting rod 504 is driven to move, so that the connecting rod 504 drives the connecting column 503 and the second connecting pipe 206 to move. The connecting column 503 drives the sliding ring 501 and the sealing ring 502 to move, so that the sealing ring 502 and the third connecting pipe 207 are engaged and pressed tightly. The sealing ring 502 is engaged with the third connecting pipe 207, which facilitates the improvement of the sealing performance between the third connecting pipe 207 and the second connecting pipe 206.

[0039] Specifically, Figure 6 , Fig. 9 and Fig.10 As shown, the scraping structure 6 includes a sliding rod 601 slidably connected to the mounting plate 201 and a plurality of mounting rods 602 fixedly connected to the sliding rod 601, a plurality of scraping rings 603 are fixedly connected to the mounting rod 602, the scraping rings 603 are slidably connected to the reheater body 202, a connecting plate 604 is slidably connected to the mounting plate 201, the mounting rod 602 is fixedly connected to the connecting plate 604, the mounting rod 602 is fixedly connected to the connecting plate 604, a third hydraulic rod 605 is installed in the mounting plate 201, and the connecting plate 604 is fixedly connected to the reheater body 202. The telescopic end of the third hydraulic rod 605 is fixedly connected. At the same time, after the reheater body 202 has been used for a period of time, the third hydraulic rod 605 can be started. When the telescopic end of the third hydraulic rod 605 is extended, it drives the connecting plate 604 to move. The connecting plate 604 drives the sliding rod 601 to move. The sliding rod 601 drives multiple installation rods 602 to move. When the installation rods 602 move, they drive multiple scraping rings 603 to scrape off the dust on the reheater body 202, thereby preventing the dust from adhering to the reheater body 202, reducing the heat exchange efficiency of the reheater body 202 and causing poor steam reheating effect.

[0040] When the present invention is in use, the water in the water-cooled wall 8 is first heated by the burner, and the water vapor in the water-cooled wall 8 enters the steam drum 7 through the pipeline. The water vapor reaching the required temperature enters the superheater 11. The heat generated by the burner further heats the superheater 11 to form superheated steam. The superheated steam enters the steam turbine 204 through the pipeline and drives the rotor of the steam turbine 204 to rotate. If the temperature of the water vapor in the steam turbine 204 is not enough, it enters the second connecting pipe 206 through the installation box 401 through one of the first connecting pipes 205, and then returns to the reheater body 202 from the second connecting pipe 206 and the third connecting pipe 207 for reheating. The heated steam enters another first connecting pipe 205 through another third connecting pipe 207 and the second connecting pipe 206, and then enters the steam turbine 204 from the first connecting pipe 205. Various impurities are filtered through the filter 403 to prevent the impurities from entering the reheater body 202 and gradually depositing on the heat exchange surface. The heat exchange efficiency is reduced, and the corrosion and clogging of the reheater body 202 are avoided. When the filter screen 403 needs to be disassembled for replacement or cleaning, the third screw rod 409 is driven to rotate by the rotating rod 410, so that the third screw rod 409 drives the slider 408 to no longer press against the filter frame 402. The slider 408 applies a resistance force to the filter frame 402, which can make the sealing ring 411 and the installation box 401 fit more tightly, thereby improving the sealing performance. At the same time, when the slider 408 is no longer in contact with the filter frame When the filter frame 402 is pressed tightly, the stopper 405 can be pulled upwards. When the stopper 405 moves upwards, it will slide with the guide column 406. The guide column 406 is set to make the stopper 405 slide more smoothly. At the same time, the spring 407 contracts. When the stopper 405 no longer resists the filter frame 402, the filter frame 402 is resisted by the stopper 405, which is convenient for quickly installing the filter frame 402 in the installation box 401, thereby improving the disassembly efficiency of the filter screen 403 when the filter screen 403 needs to be disassembled.

[0041] When the reheater body 202 needs to be disassembled for maintenance, the first hydraulic rod 304 can be started. When the telescopic end of the first hydraulic rod 304 is extended, the adjustment frame 303 is driven to move. When the adjustment frame 303 moves, the guide rod 302 and the guide sleeve 301 are driven to slide. The arrangement of the guide rod 302 and the guide sleeve 301 makes the adjustment frame 303 move more smoothly. When the adjustment frame 303 drives the mounting plate 201 and the reheater body 202 to slide out of the shell 1, the first motor 307 can be started. When the output shaft of the first motor 307 rotates, the adjustment frame 303 drives the mounting plate 201 and the reheater body 202 to slide out of the shell 1. The first screw rod 306 rotates, and the thread drives the slide frame 305 to move downward when the first screw rod 306 rotates. When the slide frame 305 slides, it will slide with the guide shaft 308. The setting of the guide shaft 308 makes the slide frame 305 slide more smoothly. When the slide frame 305 drives the mounting plate 201 to move downward to a certain position, when the mounting plate 201 contacts the ground, the second motor 311 can be started. When the output shaft of the second motor 311 rotates, it drives the second screw rod 310 to rotate. When the second screw rod 310 rotates, the thread drives the two mounting blocks 309 to move in opposite directions, so that The two mounting blocks 309 are no longer engaged with the mounting plate 201. At this time, the reheater body 202 on the mounting plate 201 can be inspected and maintained. The two mounting blocks 309 are threadedly driven to engage with the mounting plate 201 by the second screw rod 310, and are used in conjunction with the adjustment frame 303 and the slide frame 305 to facilitate rapid removal of the mounting plate 201 from the shell 1, thereby improving the disassembly and assembly efficiency of the reheater body 202. At the same time, the slide frame 305 drives the mounting plate 201 to move downward, which can reduce the height of the reheater body 202 and reduce the difficulty of operation. At the same time, when the mounting plate 201 is mounted on the housing 1, the second hydraulic rod 505 can be started, and the telescopic end of the second hydraulic rod 505 can be contracted to drive the connecting rod 504 to move, so that the connecting rod 504 drives the connecting column 503 and the second connecting pipe 206 to move, and the connecting column 503 drives the sliding ring 501 and the sealing ring 502 to move, so that the sealing ring 502 and the third connecting pipe 207 are engaged and pressed tightly, and the sealing ring 502 is engaged with the third connecting pipe 207, so as to improve the sealing performance between the third connecting pipe 207 and the second connecting pipe 206;

[0042] At the same time, after the reheater body 202 has been used for a period of time, the third hydraulic rod 605 can be started. When the telescopic end of the third hydraulic rod 605 is extended, it drives the connecting plate 604 to move. The connecting plate 604 drives the sliding rod 601 to move. The sliding rod 601 drives the multiple installation rods 602 to move. When the installation rods 602 move, they drive the multiple scraping rings 603 to scrape off the dust on the reheater body 202, thereby preventing the dust from adhering to the reheater body 202, reducing the heat exchange efficiency of the reheater body 202 and causing poor steam reheating effect.

[0043] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An intelligent steam reheater for thermal power generation, characterized in that: It comprises a shell (1), a reheating structure (2) mounted on the shell (1), a mounting structure (3) provided between the reheating structure (2) and the shell (1), a filtering structure (4) mounted on the reheating structure (2), and a scraping structure (6) mounted in the reheating structure (2); The reheat structure (2) comprises a mounting plate (201) detachably connected to the shell (1) and a reheater body (202) mounted on the mounting plate (201); a fixing plate (203) is fixedly connected to the shell (1); a steam turbine (204) is mounted on the fixing plate (203); two first connecting pipes (205) are mounted on the steam turbine (204); one of the first connecting pipes (205) is fixedly connected to a second connecting pipe (206); and two third connecting pipes (207) are mounted on the reheater body (202); The filtering structure (4) comprises an installation box (401) fixedly connected to another first connecting tube (205) and a filter frame (402) detachably connected to the installation box (401); a second connecting tube (206) is fixedly connected to the installation box (401); the two second connecting tubes (206) respectively contact with two third connecting tubes (207); a filter screen (403) is installed in the filter frame (402); a connecting block (404) is fixedly connected to the installation box (401); a stopper (405) is slidably connected to the connecting block (404); the stopper (405) is slidably connected to the filter frame (402); a slider (408) is slidably connected to the inside of the stopper (405); a third screw rod (409) is rotatably connected to the stopper (405); the slider (408) is threadedly connected to the third screw rod (409).

2. The intelligent steam reheater for thermal power generation according to claim 1, characterized in that: The connecting block (404) is fixedly connected to a guide column (406), the stop block (405) is slidably connected to the guide column (406), a spring (407) is fixedly connected between the stop block (405) and the guide column (406), the third screw rod (409) is fixedly connected to a rotating rod (410), the filter frame (402) is fixedly connected to a sealing ring (411), and the sealing ring (411) is engaged with the installation box (401).

3. The intelligent steam reheater for thermal power generation according to claim 1, characterized in that: The mounting structure (3) comprises two guide sleeves (301) fixedly connected to the housing (1) and guide rods (302) slidably connected to the guide sleeves (301); an adjustment frame (303) is fixedly connected between the two guide rods (302); a slide frame (305) is slidably connected to the adjustment frame (303); two mounting blocks (309) are slidably connected to the slide frame (305); and the mounting blocks (309) are engaged with the mounting plate (201).

4. The intelligent steam reheater for thermal power generation according to claim 3, characterized in that: A second screw rod (310) is rotatably connected in the sliding frame (305), the mounting block (309) is threadedly connected to the second screw rod (310), the threads at both ends of the second screw rod (310) are in opposite directions, a second motor (311) is installed on the sliding frame (305), and the second screw rod (310) is fixedly connected to the output shaft of the second motor (311).

5. The intelligent steam reheater for thermal power generation according to claim 4, characterized in that: The adjusting frame (303) is rotatably connected to a first screw rod (306), the sliding frame (305) is threadedly connected to the first screw rod (306), a first motor (307) is installed on the adjusting frame (303), the first screw rod (306) is fixedly connected to an output shaft of the first motor (307), a first hydraulic rod (304) is installed on the housing (1), the adjusting frame (303) is fixedly connected to a telescopic end of the first hydraulic rod (304), a guide shaft (308) is fixedly connected inside the adjusting frame (303), and the sliding frame (305) is slidably connected to the guide shaft (308).

6. The intelligent steam reheater for thermal power generation according to claim 1, characterized in that: The scraping structure (6) includes a sliding rod (601) slidably connected to the mounting plate (201) and a plurality of mounting rods (602) fixedly connected to the sliding rod (601), a plurality of scraping rings (603) are fixedly connected to the mounting rod (602), and the scraping rings (603) are slidably connected to the reheater body (202).

7. The intelligent steam reheater for thermal power generation according to claim 6, characterized in that: A connecting plate (604) is slidably connected to the mounting plate (201), the mounting rod (602) is fixedly connected to the connecting plate (604), the mounting rod (602) is fixedly connected to the connecting plate (604), a third hydraulic rod (605) is installed in the mounting plate (201), and the connecting plate (604) is fixedly connected to the telescopic end of the third hydraulic rod (605).

8. The intelligent steam reheater for thermal power generation according to claim 7, characterized in that: The second connecting tube (206) and the third connecting tube (207) are sealed by a sealing structure (5), wherein the sealing structure (5) comprises a sliding ring (501) slidably connected to the second connecting tube (206) and a sealing ring (502) fixedly connected to the sliding ring (501), wherein the sealing ring (502) is slidably connected to the second connecting tube (206), and the sealing ring (502) is engaged with the third connecting tube (207).

9. The intelligent steam reheater for thermal power generation according to claim 8, characterized in that: Two connecting columns (503) are fixedly connected to the slip ring (501), and the connecting columns (503) are slidably connected to the second connecting pipe (206). The two connecting columns (503) are fixedly connected to connecting rods (504). Two second hydraulic rods (505) are installed on the housing (1), and the two connecting rods (504) are fixedly connected to the telescopic ends of the two second hydraulic rods (505), respectively.

10. The intelligent steam reheater for thermal power generation according to claim 1, characterized in that: A steam drum (7) is installed in the shell (1), a water-cooled wall (8) is installed in the shell (1), an economizer (9) is installed in the shell (1), a superheater (11) is installed in the shell (1), and a condenser (10) is installed on the fixed plate (203).

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