A nuclear power plant condensate pump

Abstract

This invention discloses a nuclear power plant condensate pump, relating to the field of pump technology. It includes a pump body, a motor mounted on one side of the pump body, an impeller installed inside the pump body, and a drive connection between the motor's output shaft and the impeller. The pump body has an inlet and an outlet, with an inlet pipe detachably connected to the inlet. A spare pipe connects to the inlet pipe, and a housing connects to both the spare pipe and the inlet pipe. A filter assembly is installed inside the housing. A top plate is fixedly connected to the bottom of the motor and pump body, and a shock-absorbing mechanism is installed on the bottom surface of the top plate. This invention integrates core components such as the pump body, motor, and impeller to ensure basic pumping functionality. The inlet and spare pipes are designed with redundant paths to prevent equipment downtime due to blockage or failure of a single pipe, improving reliability. The filter assembly inside the housing intercepts impurities, preventing particulate matter from entering the pump body and extending the equipment's lifespan. The top plate is integrated with the shock-absorbing mechanism, providing stable support for the motor and pump body while reducing the impact of vibration on the equipment and surrounding structures.

Description

Technical Field

[0001] This invention relates to the field of water pump technology, and more particularly to a nuclear power plant condensate pump. Background Technology

[0002] Nuclear power plant condensate pumps are key equipment used in nuclear power plants to transport steam turbine condensate. Their core function is to heat the steam turbine condensate through a motor and then transport it to the deaerator or other treatment systems to achieve condensate recycling and ensure the safe and stable operation of the steam system.

[0003] Common faults of existing drainage pumps include loose bolts on the foundation platform. The drainage pump's shock absorption structure is simple or lacks shock absorption function, leading to frequent maintenance and affecting normal operation. At the same time, water pollution can cause scale or corrosion on the pump body, affecting the pump's lifespan. A filter structure needs to be installed, which requires regular cleaning or replacement. The existing filter structure is complicated to replace, time-consuming, labor-intensive, and requires downtime, affecting efficiency.

[0004] Therefore, there is an urgent need for a nuclear power plant condensate pump to solve the problems existing in the above-mentioned technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a nuclear power plant condensate pump to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a nuclear power plant condensate pump, including a pump body, a motor disposed on one side of the pump body, an impeller installed inside the pump body, the output shaft of the motor being drivenly connected to the impeller, an inlet and an outlet disposed on the pump body, an inlet pipe detachably connected to the inlet, a spare pipe connected to the inlet pipe, a housing connected to the spare pipe and the inlet pipe respectively, and the two housings being vertically aligned, a valve disposed at the connection between the spare pipe and the inlet pipe, a filter assembly installed inside the housing, a top plate fixedly connected to the bottom of the motor and the pump body, and a shock-absorbing mechanism disposed on the bottom surface of the top plate.

[0007] Optionally, the shock absorption mechanism includes several buffer components fixedly connected to the bottom surface of the top plate, a protective shell is provided between the buffer components, an airbag is installed inside the protective shell, the top of the airbag contacts the top plate, and exhaust pipes are symmetrically arranged on the buffer components, with the top of the exhaust pipes communicating with the airbag.

[0008] Optionally, the buffer assembly includes a movable rod that is symmetrically and fixedly connected to the bottom surface of the top plate. The bottom of the movable rod extends into the sleeve and is slidably connected to the sleeve. A connecting pipe is fixedly connected between the two sleeves and communicates with the exhaust pipe. Reset members are symmetrically installed inside the connecting pipe. A shock-absorbing damping spring is sleeved on the outside of the movable rod. The top of the shock-absorbing damping spring is fixedly connected to the top plate, and the bottom of the shock-absorbing damping spring is fixedly connected to the top of the sleeve.

[0009] Optionally, the reset component includes a piston that is slidably connected to the inner wall of the connecting pipe, a reset spring that is fixedly connected to the side wall of the piston, a partition that is fixedly connected inside the connecting pipe, the end of the reset spring away from the piston that is fixedly connected to the partition, and air outlets that are symmetrically arranged on the connecting pipe, with the two air outlets located on both sides of the partition, and the air outlets communicating with the exhaust pipe.

[0010] Optionally, a support rod is symmetrically and fixedly connected to the bottom surface of the protective shell, and the bottom of the support rod is fixedly connected to the side wall of the sleeve.

[0011] Optionally, a base plate is fixedly connected to the bottom of the sleeve, and the base plate provides support for the whole.

[0012] Optionally, the top surface of the box body is provided with an opening, and a sealing plate is detachably connected to the opening. The filter assembly is detachably connected to the bottom surface of the sealing plate. A rotating plate is rotatably connected to the top surface of the sealing plate. A knob is fixedly connected to the top surface of the rotating plate. A fixing seat is symmetrically fixedly connected to the top surface of the box body. The fixing seat is located on both sides of the sealing plate. An extrusion assembly is installed on the fixing seat. The rotating plate is detachably connected to the extrusion assembly.

[0013] Optionally, the extrusion assembly includes a movable rod slidably connected to the fixed base, a compression spring sleeved on the outer side of the movable rod, one end of the compression spring being fixedly connected to the inner top surface of the fixed base, and the other end of the compression spring being fixedly connected to an extrusion plate. The extrusion plate is detachably connected to the rotating plate and is fixedly connected to the movable rod.

[0014] Optionally, a connector is fixedly connected to the end of the rotating plate, the connector is detachably connected to the extrusion plate, and the connector is provided with a wedge-shaped surface.

[0015] Optionally, a slider is fixedly connected to the top of the filter assembly, a dovetail groove is opened on the bottom surface of the sealing plate, the slider is adapted to the dovetail groove, and a sealing ring is fixedly connected to the bottom surface of the sealing plate, the sealing ring is adapted to the opening.

[0016] This invention discloses the following technical effects: During use, the impeller inside the pump body is rotated by a motor to achieve water transfer. Water enters the pump body through the inlet pipe and the outlet is connected to other external equipment, allowing water to exit. The water is filtered by a filter assembly inside the housing, reducing impurities and extending the pump's service life. When the filter assembly needs replacement or cleaning, water flows into the pump body through a spare pipe, and the housing at the inlet pipe opens for quick cleaning or replacement without stopping the machine, improving work efficiency. Conversely, the filter assembly in the housing at the spare pipe can be replaced in the same way. During use, a shock-absorbing mechanism keeps the pump body and motor in a stable state, reducing bolt loosening, minimizing maintenance frequency, and saving costs. This invention integrates core components such as the pump body, motor, and impeller to ensure basic pumping function. The design of the inlet pipe and backup pipe provides redundant paths to avoid equipment downtime due to blockage or failure of a single pipe, thus improving reliability. The filter component inside the housing can intercept impurities, prevent particulate matter from entering the pump body, and extend the service life of the equipment. The top plate is integrated with the shock absorption mechanism to provide stable support for the motor and pump body, while reducing the impact of vibration on the equipment and surrounding structures through shock absorption. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the shock absorption mechanism of the present invention;

[0020] Figure 3 This is a schematic diagram of the extrusion assembly of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the rotating plate of the present invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of the protective shell of the present invention;

[0023] Figure 6 This is a schematic diagram of the internal structure of the connecting tube of the present invention;

[0024] Figure 7 This is a side view of the sealing plate of the present invention;

[0025] In the diagram: 1. Motor; 2. Inlet; 3. Outlet; 4. Pump body; 5. Inlet pipe; 6. Box; 7. Spare pipe; 8. Sleeve; 9. Shock-absorbing damping spring; 10. Base plate; 11. Connecting pipe; 12. Exhaust pipe; 13. Support rod; 14. Moving rod; 15. Sealing plate; 16. Fixed seat; 17. Compression spring; 18. Moving rod; 19. Compression plate; 20. Knob; 21. Rotating plate; 22. Connector; 23. Wedge-shaped surface; 24. Protective shell; 25. Airbag; 26. Piston; 27. Return spring; 28. Partition plate; 29. ​​Sealing ring; 30. Slider; 31. Dovetail groove; 32. Filter assembly. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Reference Figures 1 to 7 As shown, this embodiment provides a nuclear power plant condensate pump, including a pump body 4. A motor 1 is installed on one side of the pump body 4, and an impeller is installed inside the pump body 4. The output shaft of the motor 1 is connected to the impeller via a drive. The pump body 4 is provided with an inlet 2 and an outlet 3. An inlet pipe 5 is detachably connected to the inlet 2. A spare pipe 7 is connected to the inlet pipe 5. A housing 6 is connected to both the spare pipe 7 and the inlet pipe 5, and the two housings 6 are arranged correspondingly in the vertical direction. A valve is provided at the connection between the spare pipe 7 and the inlet pipe 5. A filter assembly 32 is installed inside the housing 6. A top plate is fixedly connected to the bottom of the motor 1 and the pump body 4, and a shock-absorbing mechanism is provided on the bottom surface of the top plate.

[0029] During operation, the impeller inside the pump body 4 is rotated by the motor 1 to transfer water. Water enters the pump body 4 from the inlet pipe 5 through the inlet port 2. The outlet port 3 connects to other external equipment, and the water is discharged from the outlet port 3. The water is filtered by the filter assembly 32 in the housing 6, thereby reducing impurities in the water and extending the service life of the pump body 4. When the filter assembly 32 needs to be replaced or cleaned, water flows into the pump body 4 from the spare pipe 7, and the housing 6 at the inlet pipe 5 is opened for quick cleaning or replacement without stopping the machine, thus improving work efficiency. Conversely, the filter assembly 32 in the housing 6 at the spare pipe 7 is replaced in the same way. During operation, the shock absorption mechanism keeps the pump body 4 and the motor 1 in a stable state, thereby reducing the occurrence of loose bolts, reducing maintenance frequency, and saving costs. This invention integrates core components such as pump body 4, motor 1, and impeller to ensure basic water pumping function. The design of inlet pipe 5 and backup pipe 7 provides redundant paths to avoid equipment downtime due to blockage or failure of a single pipe, thus improving reliability. The filter component 32 inside the housing 6 can intercept impurities and prevent particulate matter from entering the pump body 4, extending the service life of the equipment. The top plate is integrated with the shock absorption mechanism to provide stable support for motor 1 and pump body 4, while reducing the impact of vibration on the equipment and surrounding structures through shock absorption.

[0030] The design is further refined. The shock absorption mechanism includes several buffer components that are fixedly connected to the bottom surface of the top plate. A protective shell 24 is provided between the buffer components. An airbag 25 is installed inside the protective shell 24. The top of the airbag 25 contacts the top plate. Exhaust pipes 12 are symmetrically arranged on the buffer components. The top of the exhaust pipes 12 is connected to the airbag 25.

[0031] Specifically, when vibration occurs, the buffer assembly is compressed, and the gas inside the buffer assembly is introduced into the airbag 25 through the exhaust pipe 12, causing the airbag 25 to inflate (the airbag 25 is already filled with gas). The airbag 25 fits against the top plate, and when the top plate is pressed downward, it is cushioned by the airbag 25, further improving the shock absorption performance. The synergistic effect of the buffer assembly and the airbag 25 forms a multi-stage shock absorption system. The airbag 25 absorbs the instantaneous impact force through deformation, and the buffer assembly disperses the continuous vibration energy. The protective shell 24 encloses the airbag 25 to prevent damage to the airbag 25 from external collisions or sharp objects, ensuring the stability of the shock absorption function.

[0032] Further refining the scheme, the buffer assembly includes a movable rod 14 that is symmetrically and fixedly connected to the bottom surface of the top plate. The bottom of the movable rod 14 extends into the sleeve 8 and is slidably connected to the sleeve 8. A connecting pipe 11 is fixedly connected between the two sleeves 8. The connecting pipe 11 is connected to the exhaust pipe 12. Reset components are symmetrically installed inside the connecting pipe 11. A shock-absorbing damping spring 9 is sleeved on the outside of the movable rod 14. The top of the shock-absorbing damping spring 9 is fixedly connected to the top plate, and the bottom of the shock-absorbing damping spring 9 is fixedly connected to the top of the sleeve 8.

[0033] Specifically, when subjected to vibration, the moving rod 14 moves along the sleeve 8 to compress the air inside the sleeve 8, thereby supporting the use of the airbag 25. Through the sliding engagement between the moving rod 14 and the sleeve 8, the vertical vibration is converted into linear motion. The connecting pipe 11 connects the two sleeves 8, facilitating the passage of compressed gas into the connecting pipe 11 and its discharge through the exhaust pipe 12. The shock-absorbing damping spring 9 directly absorbs the vibration energy and forms an elastic buffer with the structure of the moving rod 14 and the sleeve 8. When the shock-absorbing damping spring 9 resets, the reset element moves in the opposite direction, and the gas moves in the opposite direction synchronously, ensuring the balance of internal pressure and improving the synchronization of shock absorption.

[0034] Further refining the scheme, the reset component includes a piston 26 that is slidably connected to the inner wall of the connecting pipe 11. A reset spring 27 is fixedly connected to the side wall of the piston 26. A partition 28 is fixedly connected inside the connecting pipe 11. The end of the reset spring 27 away from the piston 26 is fixedly connected to the partition 28. Air outlets are symmetrically arranged on the connecting pipe 11. The two air outlets are located on both sides of the partition 28. The air outlets are connected to the exhaust pipe 12.

[0035] Specifically, the piston 26 slides inside the connecting pipe 11, adjusting the volume inside the connecting pipe 11 by displacement, and automatically resets in conjunction with the reset spring 27 to maintain the dynamic balance of the buffer assembly. The partition 28 divides the connecting pipe 11 into two sides, and the air outlets are located on both sides of the partition 28, so that the pressure difference on both sides of the piston 26 drives the reset, improving the buffer response speed. The exhaust pipe 12 is connected to the air outlet to release excess gas in the connecting pipe 11 and prevent the accumulation of air pressure from causing buffer failure.

[0036] The design is further refined so that the bottom surface of the protective shell 24 is symmetrically and fixedly connected to the support rod 13, and the bottom of the support rod 13 is fixedly connected to the side wall of the sleeve 8.

[0037] Specifically, the support rod 13 connects the protective shell 24 and the sleeve 8, enhances the structural rigidity of the protective shell 24, fixes the relative position of the protective shell 24 and the buffer assembly, ensures that the airbag 25 is always in contact with the top plate, and maintains the effectiveness of the shock absorption function.

[0038] The design is further refined, with a base plate 10 fixedly connected to the bottom of the sleeve 8, which provides support for the whole structure.

[0039] Specifically, the base plate 10 serves as the foundation of the equipment, distributing the overall weight to the ground and preventing the sleeve 8 from sinking or tilting due to long-term stress. At the same time, the base plate 10 also provides a uniform support plane to ensure that the equipment is placed horizontally, avoiding increased vibration or seal failure caused by uneven bottom surfaces.

[0040] Further refining the design, the top surface of the box body 6 has an opening, and a sealing plate 15 is detachably connected to the opening. The filter assembly 32 is detachably connected to the bottom surface of the sealing plate 15. A rotating plate 21 is rotatably connected to the top surface of the sealing plate 15. A knob 20 is fixedly connected to the top surface of the rotating plate 21. A fixing seat 16 is symmetrically fixedly connected to the top surface of the box body 6. The fixing seat 16 is located on both sides of the sealing plate 15. An extrusion assembly is installed on the fixing seat 16. The rotating plate 21 is detachably connected to the extrusion assembly.

[0041] Specifically, during normal use, the rotating plate 21 and the sealing plate 15 are perpendicular to each other, and the end of the rotating plate 21 is in contact with the extrusion assembly to ensure the stability of the sealing plate 15 installation. When replacing, rotate the knob 20 to keep the rotating plate 21 and the sealing plate 15 in a linear alignment, thereby allowing the sealing plate 15 to be released from its limit position. The sealing plate 15 can then be opened to clean or replace the internal filter assembly 32. The detachable design of the sealing plate 15 facilitates quick replacement of the filter assembly 32 and reduces maintenance difficulty. The rotating plate 21 and the knob 20 provide a manual operation interface, which locks or unlocks the sealing plate 15 by rotation, simplifying the operation process. The extrusion assembly fixes the sealing plate 15 to prevent water leakage or impurities from bypassing the filter assembly 32.

[0042] Further refining the scheme, the extrusion assembly includes a movable rod 18 that is slidably connected to the fixed base 16. An extrusion spring 17 is sleeved on the outside of the movable rod 18. One end of the extrusion spring 17 is fixedly connected to the inner top surface of the fixed base 16. The other end of the extrusion spring 17 is fixedly connected to an extrusion plate 19. The extrusion plate 19 is detachably connected to the rotating plate 21. The extrusion plate 19 is fixedly connected to the movable rod 18.

[0043] Specifically, the compression spring 17 applies continuous pressure to the compression plate 19 via the movable rod 18, so that the sealing plate 15 fits tightly with the opening of the box 6, improving the sealing performance. The sliding design of the movable rod 18 allows the compression plate 19 to adapt to the slight displacement of the sealing plate 15, avoiding sealing failure due to rigid connection.

[0044] To further refine the design, a connector 22 is fixedly connected to the end of the rotating plate 21. The connector 22 is detachably connected to the extrusion plate 19, and a wedge-shaped surface 23 is provided on the connector 22.

[0045] Specifically, during installation, rotating knob 20 rotates the rotating plate 21 90 degrees. At this time, the wedge-shaped surface 23 of connector 22 first contacts the extrusion plate 19, facilitating the quick positioning of connector 22. Continuing to rotate the knob makes the top of connector 22 positioned under the extrusion plate 19, thereby fixing the sealing plate 15 and preventing leakage. The wedge-shaped surface 23 of connector 22 cooperates with the extrusion plate 19, and the inclined surface action converts the rotational force of rotating plate 21 into axial pressure, achieving quick locking of sealing plate 15. The detachable connection method facilitates the separation of rotating plate 21 and extrusion plate 19, making it convenient to open sealing plate 15 to replace filter assembly 32.

[0046] Further refining the design, a slider 30 is fixedly connected to the top of the filter assembly 32, and a dovetail groove 31 is opened on the bottom surface of the sealing plate 15. The slider 30 is adapted to the dovetail groove 31, and a sealing ring 29 is fixedly connected to the bottom surface of the sealing plate 15. The sealing ring 29 is adapted to the opening.

[0047] Specifically, the slider 30 and the dovetail groove 31 work together to guide the installation of the filter assembly 32, prevent installation misalignment, and improve replacement efficiency. The sealing ring 29 fills the gap between the sealing plate 15 and the opening of the box 6, and together with the mechanical limiting of the dovetail groove 31, forms a double seal to prevent liquid leakage.

[0048] Working principle:

[0049] Motor 1 drives the impeller to rotate, creating negative pressure inside the pump body 4. This pressure drives water to enter the pump body 4 from the inlet 2, where it is pressurized by the impeller and discharged from the outlet 3, completing the basic pumping process. When the water flows through the inlet pipe 5 or the backup pipe 7, it first passes through the filter assembly 32 inside the housing 6 to intercept impurities, preventing particulate matter from entering the pump body 4 and avoiding impeller wear or pipe blockage. The sealing plate 15 is fixed to the compression assembly via the rotating plate 21, and can be unlocked by rotating the knob 20. The slider 30 and the dovetail groove 31 guide the installation of the filter assembly 32, reducing maintenance difficulty and facilitating quick disassembly and assembly. The sealing ring 29 fills the gap between the sealing plate 15 and the opening of the housing 6, and, in conjunction with the continuous pressure of the compression spring 17, ensures a tight seal. The inlet 2 is connected in parallel through the inlet pipe 5 and the backup pipe 7. When the main inlet pipe 5 is blocked or interrupted due to a malfunction, the backup pipe 7 can be activated immediately, ensuring continuous operation of the equipment and preventing downtime in nuclear power scenarios. The system addresses safety risks. It features a multi-stage shock absorption structure. First, the damping spring 9 directly absorbs the vertical vibrations generated by the motor 1 and pump body 4, converting kinetic energy into elastic potential energy through elastic deformation, reducing the vibration intensity transmitted to the base plate 10. Second, the moving rod 14 slides within the sleeve 8, coordinating with the air pressure balance within the connecting pipe 11 to convert the remaining vibration energy into the compression and release of gas within the sleeve 8, further dispersing the impact force. Additionally, the compressed gas enters the airbag 25, which contacts the top plate. The airbag 25 absorbs instantaneous impact force through deformation, and its synergistic effect with the shock absorption mechanism further enhances the shock absorption performance. The protective shell 24 encloses the airbag 25 to prevent external damage. The base plate 10 serves as a foundation support, distributing the equipment weight to the ground. The support rod 13 fixes the protective shell 24 and the sleeve 8, ensuring that the airbag 25 remains in contact with the top plate, maintaining the dynamic balance of the shock absorption system.

[0050] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0051] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A nuclear power plant condensate pump, characterized in that: The pump body (4) includes a motor (1) on one side of the pump body (4), an impeller installed inside the pump body (4), the output shaft of the motor (1) is connected to the impeller for transmission, an inlet (2) and an outlet (3) are respectively provided on the pump body (4), an inlet pipe (5) is detachably connected to the inlet pipe (2), a spare pipe (7) is connected to the inlet pipe (5), a box (6) is connected to the spare pipe (7) and the inlet pipe (5), and the two boxes (6) are respectively arranged in the vertical direction, a valve is provided at the connection between the spare pipe (7) and the inlet pipe (5), a filter assembly (32) is installed inside the box (6), a top plate is fixedly connected to the bottom of the motor (1) and the pump body (4), and a shock absorption mechanism is provided on the bottom surface of the top plate; The shock absorption mechanism includes several buffer components fixedly connected to the bottom surface of the top plate. A protective shell (24) is provided between the buffer components. An airbag (25) is installed inside the protective shell (24). The top of the airbag (25) contacts the top plate. An exhaust pipe (12) is symmetrically provided on the buffer components. The top of the exhaust pipe (12) is connected to the airbag (25). The top surface of the box (6) is provided with an opening, and a sealing plate (15) is detachably connected to the opening. The filter assembly (32) is detachably connected to the bottom surface of the sealing plate (15). A rotating plate (21) is rotatably connected to the top surface of the sealing plate (15). A knob (20) is fixedly connected to the top surface of the rotating plate (21). A fixed seat (16) is symmetrically fixedly connected to the top surface of the box (6). The fixed seat (16) is located on both sides of the sealing plate (15). An extrusion assembly is installed on the fixed seat (16). The rotating plate (21) is detachably connected to the extrusion assembly. The buffer assembly includes a movable rod (14) that is symmetrically and fixedly connected to the bottom surface of the top plate. The bottom of the movable rod (14) extends into the sleeve (8) and is slidably connected to the sleeve (8). A connecting pipe (11) is fixedly connected between the two sleeves (8). The connecting pipe (11) is connected to the exhaust pipe (12). A reset component is symmetrically installed inside the connecting pipe (11). A shock-absorbing damping spring (9) is sleeved on the outside of the movable rod (14). The top of the shock-absorbing damping spring (9) is fixedly connected to the top plate, and the bottom of the shock-absorbing damping spring (9) is fixedly connected to the top of the sleeve (8). The reset component includes a piston (26) that is slidably connected to the inner wall of the connecting pipe (11). A reset spring (27) is fixedly connected to the side wall of the piston (26). A partition (28) is fixedly connected inside the connecting pipe (11). The end of the reset spring (27) away from the piston (26) is fixedly connected to the partition (28). Air outlets are symmetrically arranged on the connecting pipe (11). The two air outlets are located on both sides of the partition (28). The air outlets are connected to the exhaust pipe (12).

2. The nuclear power plant condensate pump according to claim 1, characterized in that: The bottom surface of the protective shell (24) is symmetrically and fixedly connected to a support rod (13), and the bottom of the support rod (13) is fixedly connected to the side wall of the sleeve (8).

3. The nuclear power plant condensate pump according to claim 1, characterized in that: The bottom of the sleeve (8) is fixedly connected to a base plate (10), which provides support for the whole.

4. The nuclear power plant condensate pump according to claim 1, characterized in that: The extrusion assembly includes a movable rod (18) slidably connected to the fixed base (16). A compression spring (17) is sleeved on the outside of the movable rod (18). One end of the compression spring (17) is fixedly connected to the inner top surface of the fixed base (16). The other end of the compression spring (17) is fixedly connected to an extrusion plate (19). The extrusion plate (19) is detachably connected to the rotating plate (21). The extrusion plate (19) is fixedly connected to the movable rod (18).

5. The nuclear power plant condensate pump according to claim 4, characterized in that: The rotating plate (21) is fixedly connected to a connector (22) at its end. The connector (22) is detachably connected to the extrusion plate (19). The connector (22) is provided with a wedge-shaped surface (23).

6. The nuclear power plant condensate pump according to claim 1, characterized in that: The top of the filter assembly (32) is fixedly connected to a slider (30), and the bottom surface of the sealing plate (15) is provided with a dovetail groove (31). The slider (30) is adapted to the dovetail groove (31), and the bottom surface of the sealing plate (15) is fixedly connected to a sealing ring (29). The sealing ring (29) is adapted to the opening.

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