Multi-tube condenser for power plant

Abstract

The invention discloses a multi-tube condenser for a power plant, and belongs to the technical field of heat exchangers. The number of the cavity sealing plates is two, and the two cavity sealing plates are fixedly connected to the positions, close to the edge, of the two ends in the steam condensing pipe correspondingly. According to the multi-pipe type condenser for the power plant, through use of the scraping mechanism, online cleaning and maintenance can be achieved, the equipment operation efficiency and the availability rate are remarkably improved, in the normal operation process of the condenser, one position adjusting screw rod is controlled to rotate through a reciprocating motor, and the multiple position adjusting screw rods rotate synchronously in cooperation with multiple synchronous gears and synchronous gear rings; the plurality of scrapers move back and forth in the condensing pipe to continuously and automatically scrape the outer surfaces of all condensing circulating water pipes, impurities and scale in steam can be effectively prevented from being accumulated on the pipe wall, good heat exchange efficiency of the condensing pipe is maintained, heat exchange performance reduction and steam back pressure rise caused by scaling are avoided, and the service life of the condensing pipe is prolonged. Therefore, heat efficiency of a power plant is ensured.

Description

Technical Field

[0001] This invention belongs to the field of heat exchanger technology, specifically a multi-tube condenser for power plants. Background Technology

[0002] The condenser is the most important auxiliary equipment in a steam turbine. Its function is to use circulating cooling water to condense the steam discharged from the steam turbine into water, establish and maintain a certain vacuum at the steam turbine exhaust port, and obtain pure condensate for boiler feedwater. It can also receive condensate during unit start-up, shutdown and normal operation.

[0003] Condensers, as key equipment in thermal systems such as thermal power plants and nuclear power plants, primarily function to condense the exhaust steam from the turbine into water, thereby maintaining a low back pressure in the thermal cycle and improving the unit's thermal efficiency. Traditional condensers often employ a single-shell, multi-tube bundle structure, with cooling water tube bundles fixedly installed on the tube sheet. Cooling water flows inside the tubes, while the outside comes into contact with steam. During long-term operation, scale, microbial sludge, and corrosion products easily adhere to the outer walls of the cooling water tubes, leading to a significant decrease in heat transfer efficiency and an increase in turbine back pressure. This severely impacts the unit's economic efficiency and safety. Furthermore, the inner walls of the cooling water tubes may also accumulate scale or become blocked due to water quality issues, causing increased water flow resistance and reduced cooling effect.

[0004] Currently, the cleaning and maintenance of condenser tube bundles mostly adopts methods such as manual cleaning during shutdown or online ball cleaning. Manual cleaning requires the unit to be shut down, which is labor-intensive, time-consuming, and affects the continuous operation of the power plant. On the other hand, the ball cleaning system has high requirements for the quality of the balls, the placement and recovery device, and the water flow conditions. The cleaning effect is unstable, and the effect on cleaning hard scale layers that have been hardened is limited. Especially for multi-tube structures, where there are many tube bundles and they are densely arranged, traditional cleaning methods are difficult to achieve effective and uniform cleaning of the outer wall of each tube.

[0005] Therefore, there is an urgent need for a multi-tube condenser structure that can perform online cleaning without shutting down the unit and can simultaneously maintain both the inside and outside of the tubes, in order to solve the shortcomings of existing condensers in terms of cleaning and maintenance, and improve the continuous operation efficiency and reliability of the unit. Summary of the Invention

[0006] The purpose of this invention is to enable online cleaning and maintenance through the use of a scraping mechanism, significantly improving equipment operating efficiency and availability. During normal operation, the condenser can be controlled by a reciprocating motor to rotate one of the adjusting screws, which, in conjunction with multiple synchronous gears and synchronous ring gears, causes multiple adjusting screws to rotate synchronously. This allows multiple scrapers to reciprocate within the condenser tubes, continuously and automatically scraping the outer surface of all condensate circulating water pipes. This effectively prevents impurities and scale from accumulating on the pipe walls, maintaining good heat exchange efficiency in the condenser tubes and avoiding decreased heat exchange performance and increased steam back pressure due to scaling, thus ensuring the power plant's thermal efficiency. Furthermore, the sealing mechanism, driven by a control telescopic rod, engages the sealing block with the synchronous gears, completely isolating the cavities on both sides of the baffle plate, thus protecting the condensate circulating water pipe system on both sides of the condenser. The system forms an independent loop, allowing for isolated maintenance, cleaning, or repair of one side of the pipeline without shutting down the plant, while the other side continues to operate. This significantly improves the continuity of power plant operation and equipment availability. Under the precise drive of the control components, the sealing block can form a tight fit with the synchronous gear and mounting groove, effectively blocking the crossflow of cooling water between different chambers. This ensures the reliability of the seal during isolated maintenance, prevents the mixing of media between the maintenance side and the non-maintenance side, and guarantees operational safety and system stability. The action of the sealing mechanism and the adjustment components of the scraping mechanism work together intelligently. Before sealing and isolation, the synchronous gear can be pre-adjusted to a specific angle by the adjustment components to facilitate precise docking of the sealing block. After sealing, the mechanical connection of the adjustment components is not affected, realizing a smooth and rapid switch between cleaning mode and operation mode, and improving operational efficiency.

[0007] The technical solution adopted in this invention is as follows: A multi-tube condenser for power plants, comprising:

[0008] Condensation pipe;

[0009] The sealing plate is provided in two parts. The two sealing plates are respectively fixedly connected to the two ends of the condenser tube near the edge, and a partition is fixedly connected to the center of the side of the outer surface of the two sealing plates that are far apart from each other.

[0010] The condensate circulating water pipe is provided in multiple parts, and all of the multiple condensate circulating water pipes are installed inside the condensate pipe, and the two ends of the multiple condensate circulating water pipes are respectively installed on two sealing plates.

[0011] A scraping mechanism, located inside the condenser pipe, includes an adjusting component and multiple scrapers. The adjusting component is located inside the condenser pipe, and the multiple scrapers are movably connected inside the condenser pipe and connected to the adjusting component. The multiple scrapers are also movably connected to multiple condensate circulating water pipes.

[0012] The sealing mechanism is provided in two sets, each set of which is located within one of the partitions and is connected to the adjusting component. Each set of the sealing mechanism includes a positioning component and a sealing docking block. The positioning component is located within one of the partitions, and the sealing docking block is located on the positioning component and connected to the adjusting component.

[0013] The adjusting component includes:

[0014] The guide assembly is located inside the condenser tube and is connected to multiple scrapers;

[0015] The drive assembly is located inside the condenser tube and is connected to multiple scrapers;

[0016] The limiting component is located inside the condenser pipe;

[0017] A synchronization component is located on the limit component and is connected to the drive component.

[0018] The guide assembly includes multiple limiting ports and limiting rods. Each limiting port is located at the center of each scraper. The limiting rod is fixedly connected to the center of the condenser pipe, and both ends of the limiting rod are connected to two sealing plates respectively. The multiple limiting ports are movably sleeved on the limiting rods.

[0019] The drive assembly includes multiple adjusting screws and a reciprocating motor. The multiple adjusting screws are rotatably connected inside the condenser pipe and are threadedly connected to multiple scrapers. The reciprocating motor is fixedly connected to one end of the condenser pipe near the top, and the output end of the reciprocating motor is fixedly connected to one end of one of the adjusting screws.

[0020] The limiting component includes a limiting groove, a limiting ring, and a protective ring plate. The limiting groove is located at one end of the condenser pipe near the edge. The limiting ring is rotatably connected to the limiting groove, and the protective ring plate is fixedly connected to the limiting ring.

[0021] The synchronization component includes a synchronization gear ring and multiple synchronization gears. The synchronization gear ring is fixedly connected to a limiting ring. Each synchronization gear is fixedly connected to one end of each adjusting screw, and the multiple synchronization gears mesh with the synchronization gear ring. Two of the synchronization gears mesh with two sealing mating blocks respectively.

[0022] The positioning component includes a mounting groove and a positioning telescopic rod. The mounting groove is opened in one of the partitions, and the positioning telescopic rod is fixedly connected in the mounting groove. The output end of the positioning telescopic rod is fixedly connected to the sealing docking block.

[0023] One of the partitions has a cavity plate fixedly connected to one side of its outer surface, and both ends of the condenser pipe are fixedly connected to two sealing caps by bolts.

[0024] The condenser pipe has two circulating water inlet pipes connected to the bottom of one end and two circulating water outlet pipes connected to the top of one end.

[0025] The top of the condenser pipe is connected to a steam inlet, and the bottom of the condenser pipe is connected to a condensate drain outlet.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] (1) In this invention, the scraping mechanism enables online cleaning and maintenance, significantly improving equipment operating efficiency and availability. During normal operation, the condenser can control one of the adjusting screws to rotate via a reciprocating motor, and in conjunction with multiple synchronous gears and synchronous gear rings, make multiple adjusting screws rotate synchronously, thereby enabling multiple scrapers to move back and forth within the condenser tubes and continuously scrape the outer surface of all condensate circulating water pipes automatically. This effectively prevents impurities and scale in the steam from accumulating on the pipe walls, maintains good heat exchange efficiency of the condenser tubes, and avoids a decrease in heat exchange performance and an increase in steam back pressure due to scaling, thus ensuring the thermal efficiency of the power plant.

[0028] (2) In this invention, by using a sealing mechanism, the sealing docking block is driven to mesh with the synchronous gear by the control telescopic rod, which can completely isolate the cavities on both sides of the partition plate, so that the condensate circulating water pipe system on both sides of the condenser forms an independent circuit. This allows the pipeline on one side to be isolated for inspection, cleaning or maintenance without shutting down the machine, while the other side continues to operate, which significantly improves the continuity of power plant operation and equipment availability. Under the precise drive of the control component, the sealing docking block can form a tight fit with the synchronous gear and the mounting groove, effectively blocking the crossflow of cooling water between different chambers, ensuring the sealing reliability during isolation and maintenance, preventing the mixing of media between the maintenance side and the non-maintenance side, ensuring operational safety and system stability. The action of the sealing mechanism and the adjustment component of the scraping mechanism work together intelligently. Before sealing and isolation, the synchronous gear can be pre-adjusted to a specific angle by the adjustment component, which facilitates the precise docking of the sealing block. After sealing, it does not affect the mechanical connection of the adjustment component, realizing a smooth and rapid switch between cleaning mode and operation mode, and improving operational efficiency. Attached Figure Description

[0029] Figure 1 This is a first-view exploded cross-sectional view of the present invention;

[0030] Figure 2 This is a second-view exploded cross-sectional view of the present invention;

[0031] Figure 3 This is a partial cross-sectional view from a second perspective of the present invention;

[0032] Figure 4 This is a first-view perspective perspective view of the present invention;

[0033] Figure 5 This is a second-view perspective perspective view of the present invention;

[0034] Figure 6 This is a perspective view of the sealing mechanism of the present invention;

[0035] Figure 7 This is an exploded view of the scraping mechanism of the present invention;

[0036] Figure 8 This is a perspective view of the scraping mechanism of the present invention.

[0037] The markings in the diagram are: 1. Condensing pipe; 2. Synchronous gear; 3. Mounting groove; 4. Control telescopic rod; 5. Sealing docking block; 6. Reciprocating motor; 7. Synchronous gear ring; 8. Protective ring plate; 9. Limiting ring; 10. Limiting groove; 11. Condensate circulating water pipe; 12. Scraper; 13. Connecting steam port; 14. Circulating water outlet pipe; 15. Sealing plate; 16. Partition plate; 17. Sealing cover; 18. Circulating water inlet pipe; 19. Condensate drain outlet; 20. Limiting rod; 21. Adjusting screw; 22. Limiting port; 23. Dividing plate. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0039] Example 1, refer to Figure 1-8 A multi-tube condenser for power plants, comprising:

[0040] Condensing pipe 1;

[0041] Two sealing plates 15 are provided. The two sealing plates 15 are fixedly connected to the two ends of the condenser tube 1 near the edge, and a partition plate 16 is fixedly connected to the center of the side of the outer surface of the two sealing plates 15 that are far apart from each other.

[0042] Condensate circulation water pipe 11, which is provided in multiple ways, is installed inside the condensate pipe 1, and the two ends of the multiple condensate circulation water pipe 11 are respectively installed on two sealing plates 15.

[0043] A scraping mechanism is located inside the condenser pipe 1. The scraping mechanism includes an adjusting component and multiple scrapers 12. The adjusting component is located inside the condenser pipe 1, and the multiple scrapers 12 are movably connected inside the condenser pipe 1 and connected to the adjusting component. The multiple scrapers 12 are also movably connected to multiple condensate circulating water pipes 11.

[0044] The sealing mechanism has two sets, both of which are located within one of the partitions 16 and are connected to the adjusting component. Each sealing mechanism includes a positioning component and a sealing docking block 5. The positioning component is located within one of the partitions 16, and the sealing docking block 5 is located on the positioning component and connected to the adjusting component.

[0045] In this implementation scheme: the condenser pipe 1 is cylindrical, and the two ends of the condenser pipe 1 are sealed near the edges by the sealing plate 15 to ensure that the steam in the center of the condenser pipe 1 does not overflow. At the same time, the sealing plate 15 maintains a distance from the edge of the condenser pipe 1 to facilitate the use of circulating water for condensation. The sealing plate 15 has multiple holes, each corresponding to a different condensate circulating water pipe 11, ensuring the operation of the condenser. The partition plate 16 divides the sealing plate 15 into two parts, so that the multiple condensate circulating water pipes 11 are divided into two groups for independent use. During cleaning, there is no need to shut down the device, improving overall efficiency. Multiple scrapers 12 can move on multiple condensate circulating water pipes 11, supporting them to prevent bending due to gravity of the internal water during use. Simultaneously, they scrape the surface of the pipes to prevent scale buildup from prolonged steam immersion, significantly improving equipment operating efficiency and availability. During normal operation, the condenser effectively prevents impurities and scale from accumulating on the pipe walls. This maintains good heat exchange efficiency of the condenser tubes, avoiding the decline in heat exchange performance and the increase in steam back pressure caused by scaling, thereby ensuring the thermal efficiency of the power plant. The sealing connection block 5 connects with the adjusting component, allowing for sealing during internal cleaning of the condensate circulating water pipe 11, enabling independent use of both sides of the sealing plate 15 without affecting the use of the adjusting component. Through the use of the sealing connection block 5, the cavities on both sides of the baffle 16 can be completely isolated, forming an independent circuit for the condensate circulating water pipe 11 system on both sides of the condenser. This allows for isolated maintenance and cleaning of one side of the pipeline without shutting down the power plant. While one side is being cleaned or maintained, the other side continues to operate, significantly improving the continuity of power plant operation and equipment availability. It effectively blocks the crossflow of cooling water between different chambers, ensuring the sealing reliability during isolation maintenance, preventing the mixing of media between the maintenance side and the non-maintenance side, and ensuring operational safety and system stability. Before sealing and isolation, the specific angle of the adjusting component can be pre-adjusted through the adjusting component to facilitate precise docking of the sealing block. After sealing, the mechanical connection of the adjusting component is not affected, realizing a smooth and rapid switch between cleaning mode and operation mode, and improving operational efficiency.

[0046] Specifically: The adjustment components include:

[0047] A guide assembly is disposed inside the condenser tube 1 and is connected to multiple scrapers 12;

[0048] The drive assembly is located inside the condenser tube 1 and is connected to multiple scrapers 12;

[0049] The limiting component is located inside the condenser pipe 1;

[0050] A synchronization component is located on the limit component and is connected to the drive component.

[0051] In this embodiment: the guide component restricts the movement path of multiple scrapers 12 to ensure stability during use. The drive component and the synchronization component cooperate to control the multiple scrapers 12 to move synchronously. At the same time, the limit component restricts the position of the synchronization component to complete the corresponding use.

[0052] Specifically: The guide assembly includes multiple limiting ports 22 and limiting rods 20. Each limiting port 22 is opened at the center of each scraper 12. The limiting rod 20 is fixedly connected to the center of the condenser pipe 1, and both ends of the limiting rod 20 are connected to two sealing plates 15 respectively. The multiple limiting ports 22 are movably sleeved on the limiting rod 20.

[0053] In this embodiment, the multiple limiting ports 22 and the limiting rods 20 are all rectangular, which restrict the position of the scraper 12 and prevent the force from being applied to the driving component when the driving component controls the scraper 12 to move, thus affecting the service life.

[0054] Specifically: The drive assembly includes multiple adjusting screws 21 and a reciprocating motor 6. The multiple adjusting screws 21 are rotatably connected inside the condenser pipe 1, and the multiple adjusting screws 21 are threadedly connected to multiple scrapers 12. The reciprocating motor 6 is fixedly connected inside the condenser pipe 1 at one end near the top, and the output end of the reciprocating motor 6 is fixedly connected to one end of one of the adjusting screws 21.

[0055] In this embodiment, the model of the reciprocating motor 6 can be selected from those available on the market as needed, which will not be elaborated here. The reciprocating motor 6 controls one of the adjusting screws 21 to rotate, and the synchronization component makes multiple adjusting screws 21 rotate synchronously, thereby completing the synchronous movement of multiple scrapers 12. Furthermore, the threads of the multiple adjusting screws 21 are consistent, thus achieving the practical effect.

[0056] Specifically: The limiting assembly includes a limiting groove 10, a limiting ring 9, and a protective ring plate 8. The limiting groove 10 is opened at one end of the condensing pipe 1 near the edge. The limiting ring 9 is rotatably connected to the limiting groove 10, and the protective ring plate 8 is fixedly connected to the limiting ring 9.

[0057] In this embodiment, the limiting ring 9 rotates within the limiting groove 10, restricting the path of rotation, and is protected by the protective ring plate 8 to ensure the use of the synchronization component.

[0058] Specifically: The synchronization component includes a synchronization gear ring 7 and multiple synchronization gears 2. The synchronization gear ring 7 is fixedly connected to the limiting ring 9. Each synchronization gear 2 is fixedly connected to one end of each adjusting screw 21, and multiple synchronization gears 2 mesh with the synchronization gear ring 7. Among them, two synchronization gears 2 mesh with two sealing docking blocks 5 respectively.

[0059] In this embodiment: multiple synchronous gears 2 are of the same size, and the synchronous gears 2 are controlled to rotate synchronously by the synchronous gear ring 7, thereby completing the synchronous rotation of multiple adjusting screws 21 and realizing their use.

[0060] Specifically: The positioning component includes a mounting groove 3 and a positioning telescopic rod 4. The mounting groove 3 is opened in one of the partitions 16, and the positioning telescopic rod 4 is fixedly connected in the mounting groove 3. The output end of the positioning telescopic rod 4 is fixedly connected to the sealing docking block 5.

[0061] In this embodiment: the model of the control telescopic rod 4 can be selected from those available on the market as needed, which will not be elaborated here. The control telescopic rod 4 is fixed in the mounting groove 3, and the sealing docking block 5 is slidably connected in the mounting groove 3. By extending and retracting the control telescopic rod 4, the relative distance of the sealing docking block 5 in the mounting groove 3 is controlled, so as to complete the docking of the sealing docking block 5 and the synchronous gear 2. The sealing docking block 5 and the synchronous gear 2 are completely fitted together, thus completing the separation of the two sides of the partition 16.

[0062] Specifically: a partition plate 23 is fixedly connected to one side of the outer surface of one of the partitions 16, and two sealing caps 17 are fixedly connected to both ends of the condenser pipe 1 by bolts.

[0063] In this embodiment, the partition plate 23 divides the cavity separated by the partition plate 16 into upper and lower parts, separating the inlet and outlet of condensate water to complete the condensation use. The two sealing covers 17 can be opened separately, so that the cavity separated by the partition plate 16 can be used independently, improving the flexibility during use.

[0064] Specifically: Two circulating water inlet pipes 18 are connected to the bottom of one end of the condenser pipe 1, and two circulating water outlet pipes 14 are connected to the top of one end of the condenser pipe 1.

[0065] In this embodiment, two circulating water inlet pipes 18 and two circulating water outlet pipes 14 cooperate with each other, are positioned correspondingly, and are connected to the external water source used for condensation to realize the inlet and outlet of water for condensation and ensure the use of multiple condensation circulating water pipes 11.

[0066] Specifically: the top of the condenser pipe 1 is connected to a steam inlet 13, and the bottom of the condenser pipe 1 is connected to a condensate drain outlet 19.

[0067] In this embodiment: the connecting steam port 13 is connected to the steam outlet, and the connecting steam port 13 is provided with an inspection port and a water spray cooling port. The condensate drain port 19 facilitates the discharge of liquid condensed by the condensate circulation water pipe 11, thus completing its use.

[0068] In use, the connecting steam inlet 13 is connected to the steam outlet of the steam turbine. Two circulating water inlet pipes 18 and two circulating water outlet pipes 14 are connected to the condensate source and drainage location, respectively. During operation, steam enters the interior through the connecting steam inlet 13, and condensate enters the cavity at the bottom of the partition plate 23 through the circulating water inlet pipe 18. After flowing through multiple condensate circulating water pipes 11 at the bottom to the other end of the condensate pipe 1, it enters multiple condensate circulating water pipes 11 at the top, flows back into the cavity at the top of the partition plate 23, and is then discharged through the circulating water outlet pipe 14, completing the steam condensation process. During condensation, the reciprocating motor 6 controls one of the adjusting screws. The rod 21 rotates, cooperating with multiple synchronous gears 2 and synchronous gear rings 7 to make multiple adjusting screws 21 rotate synchronously, so that multiple scrapers 12 reciprocate within the condensing pipe 1, scraping the surface of multiple condensing water circulation pipes 11 to prevent scale from the steam from forming on the condensing water circulation pipes 11, thus achieving the desired effect. During maintenance, the reciprocating motor 6 adjusts the angle of the synchronous gear 2 and stops rotating. The control telescopic rod 4 controls the extension of the sealing docking block 5, so that the sealing docking block 5 aligns with the synchronous gear 2, separating the two sides of the partition 16. The two sealing covers 17 are opened in sequence to complete the internal cleaning of multiple condensing water circulation pipes 11, thus completing the use.

[0069] The control method of this invention is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this invention is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-tube condenser for power plants, characterized in that, include: Condensation pipe (1); Two sealing plates (15) are provided. The two sealing plates (15) are respectively fixedly connected to the two ends of the condenser pipe (1) near the edge. A partition plate (16) is fixedly connected to the center of the side of the outer surface of the two sealing plates (15) that are far apart from each other. Condensation circulating water pipe (11) is provided in multiple ways. All of the multiple condensation circulating water pipes (11) are installed inside the condensation pipe (1), and the two ends of the multiple condensation circulating water pipes (11) are respectively installed on two sealing plates (15). A scraping mechanism is provided inside the condenser pipe (1). The scraping mechanism includes an adjusting component and multiple scrapers (12). The adjusting component is located inside the condenser pipe (1). The multiple scrapers (12) are movably connected inside the condenser pipe (1) and are connected to the adjusting component. The multiple scrapers (12) are movably connected to multiple condensate circulating water pipes (11). The sealing mechanism is provided in two sets, both sets of the sealing mechanism are located in one of the partitions (16), and both sets of the sealing mechanism are connected to the adjusting component. Each set of the sealing mechanism includes a positioning component and a sealing docking block (5). The positioning component is located in one of the partitions (16), and the sealing docking block (5) is located on the positioning component and is connected to the adjusting component.

2. The multi-tube condenser for power plants as described in claim 1, characterized in that: The adjustment component includes: A guide assembly is located inside the condenser tube (1) and is connected to multiple scrapers (12); The drive assembly is located inside the condenser tube (1) and is connected to multiple scrapers (12); The limiting component is located inside the condenser pipe (1); A synchronization component is located on the limit component and is connected to the drive component.

3. A multi-tube condenser for power plants as described in claim 1, characterized in that: The guide assembly includes multiple limiting ports (22) and limiting rods (20). Each limiting port (22) is opened at the center of each scraper (12). The limiting rods (20) are fixedly connected to the center of the condenser pipe (1), and the two ends of the limiting rods (20) are respectively connected to two sealing plates (15). The multiple limiting ports (22) are movably sleeved on the limiting rods (20).

4. A multi-tube condenser for power plants as described in claim 1, characterized in that: The drive assembly includes multiple adjusting screws (21) and a reciprocating motor (6). The multiple adjusting screws (21) are rotatably connected inside the condenser pipe (1), and the multiple adjusting screws (21) are threadedly connected to multiple scrapers (12). The reciprocating motor (6) is fixedly connected to one end of the condenser pipe (1) near the top, and the output end of the reciprocating motor (6) is fixedly connected to one end of one of the adjusting screws (21).

5. A multi-tube condenser for power plants as described in claim 1, characterized in that: The limiting assembly includes a limiting groove (10), a limiting ring (9), and a protective ring plate (8). The limiting groove (10) is opened at one end of the condenser pipe (1) near the edge. The limiting ring (9) is rotatably connected to the limiting groove (10). The protective ring plate (8) is fixedly connected to the limiting ring (9).

6. A multi-tube condenser for power plants as described in claim 1, characterized in that: The synchronization component includes a synchronization ring (7) and multiple synchronization gears (2). The synchronization ring (7) is fixedly connected to the limiting ring (9). Each synchronization gear (2) is fixedly connected to one end of each adjusting screw (21), and multiple synchronization gears (2) mesh with the synchronization ring (7). Two of the synchronization gears (2) mesh with two sealing docking blocks (5) respectively.

7. A multi-tube condenser for power plants as described in claim 1, characterized in that: The positioning component includes a mounting groove (3) and a positioning telescopic rod (4). The mounting groove (3) is opened in one of the partitions (16). The positioning telescopic rod (4) is fixedly connected in the mounting groove (3), and the output end of the positioning telescopic rod (4) is fixedly connected to the sealing docking block (5).

8. A multi-tube condenser for power plants as described in claim 1, characterized in that: One of the partitions (16) has a cavity plate (23) fixedly connected to one side of its outer surface, and both ends of the condenser pipe (1) are fixedly connected to two sealing caps (17) by bolts.

9. A multi-tube condenser for power plants as described in claim 1, characterized in that: Two circulating water inlet pipes (18) are connected to the bottom of one end of the condenser pipe (1), and two circulating water outlet pipes (14) are connected to the top of one end of the condenser pipe (1).

10. A multi-tube condenser for power plants as described in claim 1, characterized in that: The top of the condenser pipe (1) is connected to a steam inlet (13), and the bottom of the condenser pipe (1) is connected to a condensate drain outlet (19).

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