Siphon device of water cooling tower of power plant

Abstract

The invention relates to the technical field of water cooling towers of power plants, and discloses a siphon device of a water cooling tower of a power plant, which comprises a water jet air ejector, a water injection door, a pipeline filter cartridge, an air exhaust isolation valve, a pipeline stop valve, a vacuum meter, a siphon breaking valve, an inner surrounding water distribution control valve and a pipeline, the water injection door is communicated with the water inlet end of the water jet air ejector, and a pipeline filter cartridge is connected between the water injection door and the water jet air ejector; a vacuum meter and a siphon breaking valve are arranged between the air exhaust isolation valve and the pipeline stop valve, an inner surrounding water distribution control valve is arranged below the siphon breaking valve, and all the parts are communicated through pipelines; the device forms a complete transmission loop and ensures continuous and stable operation; all the valves are reasonably arranged to achieve effective control, inner surrounding water distribution is convenient to adjust, and controllability is improved to meet the requirements of the water cooling tower.

Description

Technical Field

[0001] This invention relates to the field of cooling tower technology in power plants, specifically to a siphon device for cooling towers in power plants. Background Technology

[0002] The siphon device of the cooling tower in the power plant is an important piece of equipment to ensure the efficient operation of the cooling system in the fields of thermal power generation. It accelerates the circulation of cooling water in the cooling tower by creating a siphon effect, promotes the heat exchange between cooling water and air, and thus achieves effective dissipation of heat from the power generation equipment. It is directly related to the stability of the power plant unit operation and the energy utilization efficiency, and occupies a core position in the cooling system architecture of industrial power generation.

[0003] While existing siphon devices are equipped with basic components such as water jet ejectors, various control valves, and connecting pipes, the design of the pipe connections between these components is not optimized. This can easily lead to localized obstructions in the transmission of air and water, resulting in a disconnect in the coordination between components. Consequently, transmission interruptions or efficiency degradation frequently occur during device operation, affecting the overall continuity and stability of operation. Furthermore, the control valves used in these devices lack a unified design in terms of installation layout and connection methods. The regulatory functions of each valve interfere with each other, making it difficult to form a precise, coordinated control mechanism. When it is necessary to adjust the operation status of the internal water distribution or to perform siphon disruption operations, the adjustment response is slow and lacks precision, failing to adapt to the dynamic operational needs of the cooling tower in a timely manner. Therefore, a siphon device for power plant cooling towers is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a siphon device for cooling towers in power plants, thereby solving the aforementioned technical problems affecting the overall operational continuity and stability.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a siphon device for a cooling tower in a power plant, comprising: A water jet air ejector, and a water injection valve connected to the water inlet of the water jet air ejector, with a pipe filter cylinder connected between the water jet air ejector and the water injection valve, and a filter screen installed in the inner cavity of the pipe filter cylinder. An air extraction isolation valve is connected to the water outlet of the water jet air extractor, and a pipeline shut-off valve is connected to the air extraction isolation valve. A vacuum gauge is installed between the air extraction isolation valve and the pipeline shut-off valve. A siphon breaker valve is connected between the air extraction isolation valve and the pipeline shut-off valve, and an inner water distribution control valve is added below the siphon breaker valve. The water jet air extractor, water injection valve, air extraction isolation valve, pipeline shut-off valve, siphon breaker valve and inner water distribution control valve are connected by a pipeline, and a vacuum gauge is set on the corresponding position on the surface of the pipeline.

[0006] When the inner water distribution is put into operation, the water injection valve is operated, and the water is driven to the water jet air pump through the pipeline. The water flows through the pipeline filter cartridge, and the filter screen in the inner cavity of the pipeline filter cartridge drives the impurities to be filtered. Open the air extraction isolation valve and pipeline shut-off valve, start the water jet air ejector, drive the siphon system to create a vacuum environment, and the vacuum gauge monitors the vacuum status in real time and provides feedback. Open the inner water distribution control valve to drive the water flow through the pipeline and realize the normal operation of the inner water distribution; When it is necessary to break the siphon, close the air extraction isolation valve and the pipeline shut-off valve, open the siphon breaking valve to bring air into the siphon system, break the vacuum state, and then close the inner water distribution control valve to stop the inner water distribution.

[0007] Preferably, the filter cylinder has slag discharge ports on both sides, and a fixing ring plate is installed at the center of the filter cylinder surface. The slag discharge ports are symmetrically arranged on both sides of the filter cylinder, which can realize bidirectional synchronous discharge of filter slag and avoid the decrease in filtration efficiency caused by the accumulation of filter slag on one side inside the filter cylinder; the center positioning design of the fixing ring plate can ensure the installation accuracy of subsequent assembly structures, reduce sealing failure or operational jamming caused by structural misalignment, and provide a basic guarantee for the overall stability of the equipment operation.

[0008] Preferably, a sealing ring plate is fitted onto the surface of the pipeline filter cartridge, and a sealing gasket is installed on the inner circumferential surface of the sealing ring plate. The combined design of the sealing ring plate and the sealing gasket can form a circumferential seal on the key areas of the pipeline filter cartridge surface, effectively preventing the filter medium from leaking from the gap between the filter cartridge and the external structure; the sealing gasket is directly attached to the surface of the filter cartridge, which can adapt to the slight deformation during the operation of the filter cartridge, improve the adaptability and durability of the sealing structure, and avoid resource waste or equipment corrosion caused by media leakage.

[0009] Preferably, the lower part of the sealing ring plate is tightly fitted to the upper part of the fixed ring plate, and the inner side of the sealing gasket is tightly fitted to the discharge end of the slag outlet. The tight fit between the sealing ring plate and the fixed ring plate utilizes the stable support of the fixed ring plate to prevent the sealing ring plate from shifting during equipment operation; the sealing gasket is specifically fitted to the discharge end of the slag outlet, which can accurately seal the weak sealing area of ​​the slag outlet, preventing filter residue or filter media from leaking from the gap between the slag outlet and the external structure, while preventing external impurities from flowing back into the pipeline filter cartridge through the slag outlet, thus ensuring the purity of the filter media.

[0010] Preferably, the upper part of the pipe filter cartridge is rotatably connected to an outer rotating ring, and a sealing ring is added between the outer rotating ring and the pipe filter cartridge. The outer surface of the outer rotating ring is provided with anti-slip texture. The sealing ring between the outer rotating ring and the pipe filter cartridge effectively prevents the filter medium from entering the rotating joint gap, avoiding impurities accumulating in the gap and causing rotational jamming. It also protects the rotating mechanism from media corrosion, extending its service life. The anti-slip texture increases the friction between the hand and the outer rotating ring, ensuring that even when the equipment surface is slippery due to media, the operator can easily rotate the outer rotating ring, improving operational convenience and safety, and reducing the risk of accidental equipment contact due to slippage.

[0011] Preferably, the filter screen is tapered in shape, with its surface slidingly attached to the scraper plate. A connecting rod is installed on the outer side of the scraper plate and connected to an outer rotating ring. The bottom end of the filter screen corresponds to the feed end of the slag discharge port. The tapered design of the filter screen causes the filter residue to tend to converge towards the bottom under gravity. Combined with the sliding scraping action of the scraper plate, efficient removal of filter residue can be achieved, preventing filter residue from accumulating on the filter screen surface and clogging the filter holes, thus ensuring stable filtration area and filtration efficiency. The scraper plate is linked to the outer rotating ring via the connecting rod. The scraping mechanism can be driven by the convenient operation of the outer rotating ring without the need for an additional power unit, simplifying the slag cleaning process and reducing equipment operating energy consumption. The scraped filter residue can directly enter the slag discharge port, achieving a unified connection between slag cleaning and slag discharge, reducing the frequency and intensity of manual cleaning.

[0012] Preferably, a flow guide shroud is added between the water jet ejector and the pipe filter cartridge, and flow guide vanes are added to the inner cavity of the flow guide shroud, with the flow guide vanes having an overall spiral design. The spiral flow guide vanes can change the flow state of the medium, transforming the medium, which may otherwise experience turbulence, into an orderly spiral flow, reducing energy loss during the medium's flow process, and avoiding local low-pressure areas caused by turbulence. This alleviates the cavitation phenomenon that easily occurs when the water jet ejector is working, and extends the service life of the water jet ejector. The addition of the flow guide shroud does not change the original connection method between the water jet ejector and the pipe filter cartridge, adapts to the existing equipment installation space, and is easy to disassemble, without affecting the cleaning and maintenance of the original filter screen, thus improving the convenience of equipment maintenance. The orderly spiral flow also allows the medium to enter the water jet ejector evenly, improving the working efficiency and stability of the water jet ejector.

[0013] Preferably, the water jet pump is equipped with fixed seats at its upper and lower parts, and a connecting column is rotatably connected between adjacent fixed seats, with a torsion spring installed between the fixed seats and the connecting column. The symmetrical installation of the fixed seats provides a stable support foundation for the connecting column, ensuring its smooth rotation. The elastic reset function of the torsion spring allows the connecting column to automatically return to its initial working position after being rotated by external force, eliminating the need for manual adjustment and improving the automation and convenience of equipment operation. The buffering effect of the torsion spring also reduces the impact force when the connecting column rotates, reducing wear at the connection between the fixed seats and the connecting column, and extending the overall service life of the support structure.

[0014] Preferably, an outer connecting seat is installed at the outer end of the connecting column, and a guide column is slidably connected to the center of the outer connecting seat. An arc-shaped clamping plate is installed at the inner end of the guide column, and the arc-shaped clamping plate is in close contact with the surface of the pipe. The sliding design of the guide column allows the position of the arc-shaped clamping plate to be adjusted according to the actual outer diameter of the pipe, improving the adaptability of the structure to pipes of different specifications. The shape of the arc-shaped clamping plate matches the arc contour of the pipe surface, which can increase the contact area with the pipe and make the fit tighter, thereby providing stable support for the pipe and preventing the pipe from shifting due to gravity or media impact during operation. This structure does not require changing the original connection method and diameter of the pipe, and the installation space can be adapted to the original device layout, which has strong practicality and convenience.

[0015] Preferably, a buffer spring is fitted onto the surface of the guide column, and both ends of the buffer spring are respectively attached to the outer connecting seat and the arc-shaped clamping plate. Rubber pads are added to the contact points between the buffer spring and the outer connecting seat and the arc-shaped clamping plate. The elastic deformation of the buffer spring can effectively absorb the energy generated by pipeline vibration. Combined with the energy dissipation effect of the rubber pads, it can significantly reduce the vibration amplitude of the pipeline, avoiding problems such as pipeline weld cracking or valve sealing failure caused by long-term vibration, thus improving the operational safety and stability of the pipeline system. The rubber pads not only enhance the buffering and vibration reduction effect but also prevent rigid collisions between the buffer spring and the outer connecting seat and the arc-shaped clamping plate, reducing wear at the contact points and extending the service life of the buffer structure. This structure achieves vibration reduction through a purely mechanical structure, requiring no additional power source, ensuring reliable operation and low maintenance costs, while not altering the original structural characteristics of the pipeline, making it highly adaptable.

[0016] Compared with the prior art, the present invention provides a siphon device for cooling towers in power plants, which has the following beneficial effects: The cooling tower siphon device of the power plant, including the water jet ejector, water injection valve, air extraction isolation valve, pipeline shut-off valve, siphon failure valve and inner water distribution control valve, are interconnected through pipelines to form a complete and smooth transmission loop. This ensures that the water and air flow between the components are unobstructed, guarantees the coordinated operation of the components, and maintains the continuity and stability of the overall operation of the siphon device. The reasonable layout and connection of the air extraction isolation valve, pipeline shut-off valve, siphon breaker valve and inner water distribution control valve can effectively control the water flow path and operating status, facilitate flexible adjustment of the operation and breaker of the inner water distribution, improve the controllability of the siphon device during operation, and enable the device to better adapt to the operating requirements of the cooling tower. The filter screen can filter the water flow entering the water jet air ejector, blocking impurities from entering the water inlet of the water jet air ejector, preventing the water jet air ejector from becoming clogged due to the accumulation of impurities in the water inlet pipe, and ensuring the normal operation of the water jet air ejector. The vacuum gauge is installed between the vacuum isolation valve and the pipeline shut-off valve. It can reflect the vacuum status in this section of the pipeline in real time, so that the operator can keep abreast of the vacuum formation of the siphon device. It provides an intuitive monitoring basis for the normal operation and adjustment of the siphon device and helps the operator to accurately control the operating status of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the pipe filter cartridge structure of the present invention; Figure 3 This is a cross-sectional view of the internal structure of the filter cartridge of the present invention; Figure 4 This is a schematic diagram of the outer rotating ring structure of the present invention; Figure 5 This is a schematic diagram of the air guide cover and its connection structure of the present invention; Figure 6 This is a schematic diagram of the connecting rod and its connection structure according to the present invention.

[0018] In the diagram: 1. Water jet air ejector; 2. Pipe filter cartridge; 3. Water injection valve; 4. Air extraction isolation valve; 5. Pipe stop valve; 6. Vacuum gauge; 7. Siphon breaker valve; 8. Inner circumference water distribution control valve; 9. Pipe; 10. Fixed ring plate; 11. Sealing ring plate; 12. Outer rotating ring; 13. Anti-slip texture; 14. Sealing gasket; 15. Slag discharge port; 16. Filter screen; 17. Scraper plate; 18. Connecting rod; 19. Connecting column; 20. Fixed seat; 21. Outer connecting seat; 22. Guide column; 23. Buffer spring; 24. Rubber pad; 25. Arc-shaped clamping plate; 26. Flow guide shroud; 27. Flow guide blade. Detailed Implementation

[0019] 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.

[0020] This invention provides a technical solution: a siphon device for cooling towers in power plants, comprising: (See attached diagram) Figures 1-6 A water jet air extractor 1 and a water injection valve 3 connected to the water inlet end of the water jet air extractor 1, and a pipe filter cylinder 2 is connected between the water jet air extractor 1 and the water injection valve 3, and a filter screen 16 is installed in the inner cavity of the pipe filter cylinder 2. The air extraction isolation valve 4 is connected to the water outlet of the water jet air extractor 1, and the air extraction isolation valve 4 is connected to the pipeline stop valve 5. A vacuum gauge 6 is installed between the air extraction isolation valve 4 and the pipeline stop valve 5. The siphon breaker valve 7 is connected between the air extraction isolation valve 4 and the pipeline stop valve 5, and an inner water distribution control valve 8 is installed below the siphon breaker valve 7. The water jet air extractor 1, the water injection valve 3, the air extraction isolation valve 4, the pipeline stop valve 5, the siphon breaker valve 7 and the inner water distribution control valve 8 are connected by a pipeline 9, and a vacuum gauge 6 is installed on the surface of the pipeline 9 at the corresponding position.

[0021] When the inner water distribution is put into operation, the water injection gate 3 is operated, and the water is driven to the water jet air pump 1 through the pipe 9. The water flows through the pipe filter cylinder 2, and the impurities are filtered by the filter screen 16 inside the pipe filter cylinder 2. Open the air extraction isolation valve 4 and the pipeline shut-off valve 5, start the water jet air pump 1, drive the siphon system to form a vacuum environment, and the vacuum gauge 6 monitors the vacuum status in real time and provides feedback. Open the inner water distribution control valve 8, and drive the water flow through the pipe 9 to realize the normal operation of the inner water distribution; When it is necessary to break the siphon, close the air extraction isolation valve 4 and the pipeline shut-off valve 5, open the siphon breaking valve 7, and bring air into the siphon system to break the vacuum state. Then close the inner water distribution control valve 8 to stop the inner water distribution. The filter cartridge 2 and the filter screen 16 work together to effectively intercept impurities in the water flow, prevent blockage of the water jet air pump 1 and the water inlet pipe, solve the failure problem of the water jet air pump caused by pipe blockage in the prior art, and ensure the stable operation of the device. The water jet air ejector 1 is connected to an external water source through pipe 9, which can obtain water without the need to add a circulating water pump, thereby reducing plant power consumption and lowering operating costs. Vacuum gauge 6 monitors the vacuum status of the siphon system in real time, and air extraction isolation valve 4 can realize the isolation control of water jet air pump 1, which facilitates timely detection and handling of abnormalities and improves the safety and controllability of the device operation. The siphon breaking valve 7 and the inner water distribution control valve 8 work together to flexibly realize the establishment and breaking of the siphon state, as well as the operation and shutdown of the inner water distribution, to meet the adjustment needs of the cooling tower cooling area. The inner water distribution system can be put into operation without the need to add circulating water pumps, which also reduces the problem of increased coal consumption caused by siphon failure, thereby saving standard coal and electricity costs and improving the economic efficiency of the power plant.

[0022] Please see Figure 2 and Figure 3 The filter cartridge 2 has slag discharge ports 15 on both sides, and a fixing ring plate 10 is installed at the center of the surface of the filter cartridge 2. The filter slag produced by filtration inside the filter cartridge 2 is discharged outward through the slag discharge ports 15 on both sides. The fixing ring plate 10, installed at the center of the surface of the filter cartridge 2, provides positioning support for subsequent related structures. The slag discharge ports 15 are symmetrically arranged on both sides of the filter cartridge 2, which can realize bidirectional synchronous discharge of filter slag and avoid the decrease in filtration efficiency caused by the accumulation of filter slag on one side inside the filter cartridge. The center positioning design of the fixing ring plate 10 can ensure the installation accuracy of subsequent assembly structures, reduce sealing failure or operation jamming caused by structural misalignment, and provide a basic guarantee for the overall stability of the equipment operation.

[0023] A sealing ring plate 11 is fitted onto the surface of the filter cartridge 2, and a sealing gasket 14 is installed on the inner circumferential surface of the sealing ring plate 11. The sealing ring plate 11 is fitted onto the surface of the filter cartridge 2, and the sealing gasket 14 is installed on the inner circumferential surface of the sealing ring plate 11 to form a tight fit with the surface of the filter cartridge 2. The combined design of the sealing ring plate 11 and the sealing gasket 14 can form a circumferential seal on the key areas of the surface of the filter cartridge 2, effectively preventing the filter medium from leaking from the gap between the filter cartridge and the external structure. The sealing gasket 14 is directly attached to the surface of the filter cartridge, which can adapt to the slight deformation during the operation of the filter cartridge, improve the adaptability and durability of the sealing structure, and avoid resource waste or equipment corrosion caused by media leakage.

[0024] The lower part of the sealing ring plate 11 is tightly fitted with the upper part of the fixed ring plate 10, and the inner side of the sealing gasket 14 is tightly fitted with the discharge end of the slag discharge port 15. The sealing ring plate 11 is positioned and fixed by the tight fit between its lower part and the upper part of the fixed ring plate 10, while simultaneously driving the inner side of the sealing gasket 14 on its inner circumference to be tightly fitted with the discharge end of the slag discharge port 15, forming a sealed protection for the slag discharge port 15. The tight fit between the sealing ring plate 11 and the fixed ring plate 10, with the stable support of the fixed ring plate 10, prevents the sealing ring plate 11 from shifting during equipment operation. The sealing gasket 14 is specifically fitted to the discharge end of the slag discharge port 15, which can accurately seal the weak sealing area of ​​the slag discharge port 15, preventing filter residue or filter media from leaking from the gap between the slag discharge port 15 and the external structure, while also preventing external impurities from flowing back into the pipeline filter cartridge 2 through the slag discharge port 15, ensuring the purity of the filter media.

[0025] Please see Figure 4An outer rotating ring 12 is rotatably connected to the upper part of the filter cartridge 2, and a sealing ring is provided between the outer rotating ring 12 and the filter cartridge 2. The outer surface of the outer rotating ring 12 has anti-slip textures 13. The outer rotating ring 12 achieves circumferential rotation through its rotatable connection with the filter cartridge 2. The sealing ring maintains a sealed state between the outer rotating ring 12 and the filter cartridge 2 during rotation. The operator, by contacting the anti-slip textures 13 on the outer surface of the outer rotating ring 12, drives the outer rotating ring 12 to rotate stably around the filter cartridge 2. The sealing ring between the outer rotating ring 12 and the filter cartridge 2 effectively prevents the filter medium from entering the rotating joint gap, avoiding impurities accumulating in the gap and causing rotational jamming. It also protects the rotating mechanism from media corrosion, extending its service life. The anti-slip textures 13 increase the friction between the hand and the outer rotating ring 12, ensuring that even when the equipment surface is slippery due to media adhering to it, the operator can easily rotate the outer rotating ring 12, improving operational convenience and safety, and reducing the risk of accidental equipment contact due to slippage.

[0026] The filter screen 16 has a conical design, and the surface of the filter screen 16 slides against the scraper plate 17. A connecting rod 18 is installed on the outside of the scraper plate 17, and the connecting rod 18 is connected to the outer rotating ring 12. The bottom end of the surface of the filter screen 16 corresponds to the feed end of the slag discharge port 15. When the outer rotating ring 12 rotates, it drives the scraper 17 to move through the connecting rod 18 connected to it. The scraper 17 slides and adheres to the surface of the conical filter screen 16, scraping off the filter residue attached to the surface of the filter screen 16. The scraped filter residue slides down the surface of the conical filter screen 16 to the feed end of the discharge port 15 corresponding to the bottom end of the filter screen 16. The conical design of the filter screen 16 makes the filter residue tend to gather towards the bottom under the action of gravity. Combined with the sliding scraping action of the scraper 17, the filter residue can be efficiently removed, avoiding the accumulation of filter residue on the surface of the filter screen 16 and clogging the filter holes, thus ensuring the stability of the filtration area and filtration efficiency of the filter screen 16. The scraper 17 is linked to the outer rotating ring 12 through the connecting rod 18. The scraping mechanism can be driven by the convenient operation of the outer rotating ring 12 without the need for an additional power device, which simplifies the slag cleaning operation process and reduces the energy consumption of the equipment. The scraped filter residue can directly enter the discharge port 15, realizing the connection and unification of slag cleaning and discharge, reducing the frequency and intensity of manual cleaning.

[0027] Please see Figure 5A guide shroud 26 is provided between the water jet air pump 1 and the pipe filter cartridge 2, and a guide vane 27 is provided in the inner cavity of the guide shroud 26. The guide vane 27 is designed as a spiral. The guide shroud 26 between the water jet ejector 1 and the pipe filter cartridge 2 guides the flowing medium. When the medium flows through the inner cavity of the guide shroud 26, the spiral-designed guide vanes 27 drive the medium to form a spiral flow, allowing the medium to enter the water jet ejector 1 along a spiral trajectory. The spiral guide vanes 27 can change the flow state of the medium, transforming the medium, which may originally have turbulent disturbances, into an orderly spiral flow state, reducing energy loss during the medium flow process, and avoiding local low-pressure areas caused by turbulence. This alleviates the cavitation phenomenon that is prone to occur when the water jet ejector 1 is working, and extends the service life of the water jet ejector 1. The addition design of the guide shroud 26 does not change the original connection method between the water jet ejector 1 and the pipe filter cartridge 2, adapts to the existing equipment installation space, and is easy to disassemble. It will not affect the cleaning and maintenance of the original filter screen 16, improving the convenience of equipment maintenance. The orderly spiral flow state can also make the medium enter the water jet ejector 1 evenly, improving the working efficiency and stability of the water jet ejector 1.

[0028] Please see Figure 6 The water jet ejector 1 has fixed seats 20 installed on its upper and lower parts, and connecting columns 19 are rotatably connected between adjacent fixed seats 20. A torsion spring is added between the fixed seats 20 and the connecting columns 19. The fixed seats 20 provide support by being installed on the upper and lower parts of the water jet ejector 1. The connecting columns 19 rotate around the connection point between adjacent fixed seats 20. When the connecting columns 19 rotate, the torsion springs undergo elastic deformation and drive the connecting columns 19 to return to their original position through their own elastic force. The symmetrical installation of the fixed seats 20 provides a stable support foundation for the connecting columns 19, ensuring the smoothness of the connecting columns 19 during rotation. The elastic return function of the torsion springs allows the connecting columns 19 to automatically return to their initial working position after being rotated by external force, without the need for manual adjustment, thus improving the automation and convenience of equipment operation. The buffering effect of the torsion springs also reduces the impact force when the connecting columns 19 rotate, reduces the wear of the connection between the fixed seats 20 and the connecting columns 19, and extends the overall service life of the support structure.

[0029] An outer connecting seat 21 is installed at the outer end of the connecting column 19, and a guide column 22 is slidably connected to the center of the outer connecting seat 21. An arc-shaped clamping plate 25 is installed at the inner end of the guide column 22, and the arc-shaped clamping plate 25 is tightly fitted to the surface of the pipe 9. The connecting column 19 provides support for the guide column 22 through the outer connecting seat 21 installed at its outer end. The guide column 22 slides along the center of the outer connecting seat 21, driving the arc-shaped clamping plate 25 installed at its inner end to move, so that the arc-shaped clamping plate 25 fits tightly against the surface of the pipe 9. The sliding design of the guide column 22 allows the position of the arc-shaped clamping plate 25 to be adjusted according to the actual outer diameter of the pipe 9, improving the adaptability of the structure to pipes 9 of different specifications. The shape of the arc-shaped clamping plate 25 matches the arc contour of the surface of the pipe 9, which can increase the contact area with the pipe 9 and make the fit tighter, thereby providing stable support for the pipe 9 and preventing the pipe 9 from shifting due to gravity or media impact during operation. This structure does not require changing the original connection method and diameter of the pipe 9, and the installation space can be adapted to the original device layout, which has strong practicality and convenience.

[0030] A buffer spring 23 is fitted on the surface of the guide post 22, and the two ends of the buffer spring 23 are respectively attached to the outer connecting seat 21 and the arc-shaped clamping plate 25. Rubber pads 24 are added at the contact points between the buffer spring 23 and the outer connecting seat 21 and the arc-shaped clamping plate 25. The buffer spring 23 is sleeved on the surface of the guide post 22. Through its contact with the outer connecting seat 21 and the arc-shaped clamping plate 25 at both ends, it undergoes elastic deformation when the pipeline 9 vibrates. The rubber pad 24, located at the contact point between the buffer spring 23 and the outer connecting seat 21 and the arc-shaped clamping plate 25, dissipates vibration energy through its own characteristics. The elastic deformation of the buffer spring 23 can effectively absorb the energy generated by the vibration of the pipeline 9. Combined with the energy dissipation effect of the rubber pad 24, it can significantly reduce the vibration amplitude of the pipeline 9, avoid problems such as weld cracking or valve sealing failure caused by long-term vibration, and improve the operational safety and stability of the pipeline system. The rubber pad 24 not only enhances the buffering and vibration reduction effect, but also avoids rigid collision between the buffer spring 23 and the outer connecting seat 21 and the arc-shaped clamping plate 25, reduces wear at the contact points, and extends the service life of the buffer structure. This structure achieves vibration reduction function through a purely mechanical structure, requiring no additional power source, ensuring reliable operation and low maintenance costs, while not changing the original structural characteristics of the pipeline 9, making it highly adaptable.

[0031] This scheme: by operating the water injection gate 3, water is transported to the water jet air ejector 1 through the pipe 9. When the water flows through the pipe filter cylinder 2, the filter screen 16 inside the pipe filter cylinder 2 filters out impurities. The water flows through the inner cavity of the guide shroud 26, and the spiral guide vanes 27 inside the guide shroud 26 drive the water flow to form a spiral flow, so that the water flows into the water jet air ejector 1 along the spiral trajectory. Open the air extraction isolation valve 4 and the pipeline shut-off valve 5, start the water jet air pump 1, drive the siphon system to form a vacuum environment, and the vacuum gauge 6 on the surface of the pipeline 9 drives the real-time monitoring of the vacuum status and feeds back the data. Open the inner water distribution control valve 8, and drive the water flow through the pipe 9 to realize the normal operation of the inner water distribution; the sealing ring plate 11 is positioned by tightly fitting with the fixed ring plate 10, and at the same time, it drives the sealing gasket 14 on the inner circumference surface to tightly fit with the discharge end of the slag outlet 15 to form a sealed protection. When filter residue adheres to the surface of the filter screen 16, the operator contacts the anti-slip texture 13 on the outer surface of the outer rotating ring 12, causing the outer rotating ring 12 to rotate around the filter cylinder 2 in the pipeline; the outer rotating ring 12 drives the scraper 17 to move through the connecting rod 18, and the scraper 17 slides and adheres to the surface of the conical filter screen 16, causing the filter residue to be scraped off from the surface of the filter screen 16. The scraped filter residue slides down the surface of the filter screen 16 to the feed end of the discharge port 15, and is discharged outward through the discharge port 15; When it is necessary to break the siphon, close the air extraction isolation valve 4 and the pipeline shut-off valve 5, open the siphon breaking valve 7, and bring air into the siphon system to break the vacuum state; then close the inner water distribution control valve 8 to stop the water flow in the pipeline 9 and stop the inner water distribution. The upper and lower fixed seats 20 of the water jet ejector 1 provide support for the connecting column 19. The connecting column 19 rotates around the fixed seat 20, which drives the outer connecting seat 21 at the outer end to adjust its position. The outer connecting seat 21 drives the guide column 22 to slide along its center. The guide column 22 drives the arc-shaped clamping plate 25 at the inner end to fit tightly against the surface of the pipe 9, thereby achieving the support and fixation of the pipe 9. When the connecting column 19 rotates, it drives the torsion spring to undergo elastic deformation. The torsion spring drives the connecting column 19 to return to its original position through its own elastic force. When the pipe 9 vibrates, the buffer spring 23 on the surface of the guide column 22 undergoes elastic deformation, which leads to energy absorption; the rubber pads 24 at both ends of the buffer spring 23 consume vibration energy through their own characteristics, thereby reducing the vibration amplitude of the pipe 9.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A siphon device for cooling towers in power plants, characterized in that, include: A water jet air ejector (1) and a water injection valve (3) connected to the water inlet end of the water jet air ejector (1), and a pipe filter cylinder (2) is connected between the water jet air ejector (1) and the water injection valve (3), and a filter screen (16) is installed in the inner cavity of the pipe filter cylinder (2). The air extraction isolation valve (4) is connected to the water outlet of the water jet air extractor (1), and the air extraction isolation valve (4) is connected to the pipeline stop valve (5), and a vacuum gauge (6) is installed between the air extraction isolation valve (4) and the pipeline stop valve (5). The siphon breaker valve (7) is connected between the air extraction isolation valve (4) and the pipeline stop valve (5), and an inner water distribution control valve (8) is provided below the siphon breaker valve (7). The water jet air pump (1), water injection valve (3), air extraction isolation valve (4), pipeline stop valve (5), siphon breaker valve (7) and inner water distribution control valve (8) are connected by a pipeline (9), and a vacuum gauge (6) is set on the corresponding position on the surface of the pipeline (9).

2. The siphon device for a cooling tower in a power plant according to claim 1, characterized in that: The pipe filter cylinder (2) has slag discharge ports (15) on both sides, and a fixing ring plate (10) is installed at the center of the surface of the pipe filter cylinder (2).

3. The siphon device for a cooling tower in a power plant according to claim 2, characterized in that: The surface of the pipe filter cartridge (2) is fitted with a sealing ring plate (11), and a sealing gasket (14) is installed on the inner circumferential surface of the sealing ring plate (11).

4. The siphon device for a cooling tower in a power plant according to claim 3, characterized in that: The lower part of the sealing ring plate (11) is closely fitted with the upper part of the fixing ring plate (10), and the inner side of the sealing gasket (14) is closely fitted with the discharge end of the slag discharge port (15).

5. A siphon device for a cooling tower in a power plant according to claim 2, characterized in that: The upper part of the pipe filter cylinder (2) is rotatably connected to an outer rotating ring (12), and a sealing ring is provided between the outer rotating ring (12) and the pipe filter cylinder (2), and anti-slip texture (13) is provided on the outer surface of the outer rotating ring (12).

6. The siphon device for a cooling tower in a power plant according to claim 5, characterized in that: The filter screen (16) is designed in a conical shape, and the surface of the filter screen (16) slides against the scraper plate (17). A connecting rod (18) is installed on the outside of the scraper plate (17), and the connecting rod (18) is connected to the outer rotating ring (12). The bottom end of the surface of the filter screen (16) corresponds to the feed end of the slag discharge port (15).

7. The siphon device for a cooling tower in a power plant according to claim 1, characterized in that: A flow guide shroud (26) is provided between the water jet pump (1) and the pipe filter cartridge (2), and a flow guide blade (27) is provided in the inner cavity of the flow guide shroud (26), and the flow guide blade (27) is designed as a spiral.

8. The siphon device for a cooling tower in a power plant according to claim 1, characterized in that: The water jet pump (1) is equipped with a fixed seat (20) on its upper and lower parts, and a connecting column (19) is rotatably connected between adjacent fixed seats (20), and a torsion spring is provided between the fixed seat (20) and the connecting column (19).

9. A siphon device for a cooling tower in a power plant according to claim 8, characterized in that: The outer end of the connecting column (19) is equipped with an outer connecting seat (21), and the center of the outer connecting seat (21) is slidably connected to a guide column (22), and an arc-shaped clamping plate (25) is installed at the inner end of the guide column (22), and the arc-shaped clamping plate (25) is tightly fitted to the surface of the pipe (9).

10. A siphon device for a cooling tower in a power plant according to claim 9, characterized in that: The surface of the guide post (22) is fitted with a buffer spring (23), and the two ends of the buffer spring (23) are respectively attached to the outer connecting seat (21) and the arc-shaped clamping plate (25). Rubber pads (24) are added to the contact points between the buffer spring (23) and the outer connecting seat (21) and the arc-shaped clamping plate (25).

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