A seismic-resistant and flow-diverting storage tank pump tower structure

Abstract

The present application relates to a seismic-resistant and diverting tank pump tower structure, and relates to the technical field of tank pump towers. The seismic-resistant and diverting tank pump tower structure includes a liquid inlet pipe and two groups of pump pipes arranged on a mounting frame, which are connected to form a stable triangular structure through multiple groups of connecting parts. Multiple groups of seismic-resistant diversion pipes on the side walls of the liquid inlet pipe or the pump pipe change the water flow direction from lateral impact to annular flow. The seismic-resistant diversion pipe is provided with a diversion assembly, which includes: a connecting pipe connected to the tail end of the seismic-resistant diversion pipe; a buffer block slidingly arranged in the connecting pipe; a reset member arranged on the side of the connecting pipe away from the seismic-resistant diversion pipe and used to push the buffer block to reset. The present application changes the water flow direction from lateral impact to annular flow through the seismic-resistant diversion pipe, thereby reducing the impact force of the liquid from the lateral impact on the seismic-resistant diversion pipe. Through the active response of the buffer block and the reset member, the probability of the liquid damaging the side wall of the liquid inlet pipe or the pump pipe is reduced, and finally the liquid impact energy is efficiently dispersed.

Description

Technical Field

[0001] The present application relates to the technical field of storage tank pump towers, and in particular to a seismic-resistant and flow-diverting storage tank pump tower structure. Background Art

[0002] In the field of liquid cargo storage, the safety of liquid storage tanks has become a major issue due to frequent vibrations. The failure of these tanks will not only cause significant economic losses, but also the toxic chemicals and other dangerous liquids in the tanks may overflow and spread in the surrounding areas, causing pollution and damage to the environment or soil safety, and may even lead to fires with immeasurable catastrophic consequences. Especially in the design and operation of offshore hulls, the safety and stability of liquid cargo storage systems have always been one of the core challenges in the field of engineering technology. Offshore hulls are exposed to complex marine environments for a long time, including factors such as wave impact, storm disturbances, tidal changes, and salt spray corrosion. These dynamic loads have a significant mechanical effect on the hull structure and the liquid stored inside. Especially when the hull encounters extreme sea conditions, the violent shaking of the liquid in the storage tank will cause fatigue and damage to the tank structure, and even cause leakage and pollution.

[0003] In the existing technology, liquid cargo storage systems of offshore ships mostly use passive fixed structures. For example, liquid impact is alleviated by strengthening the tank wall thickness, adding lateral supports or damping baffles, etc. However, these traditional designs are based on static or low dynamic load assumptions and are difficult to cope with high-frequency and high-intensity wave impacts. At the same time, passive fixed structures only rely on material strength to absorb impact, resulting in stress concentration in energy concentration areas.

[0004] Therefore, there is an urgent need to design a tank pump tower that can actively adapt to high-frequency vibrations and efficiently disperse liquid impact energy. Summary of the Invention

[0005] In order to efficiently disperse the liquid impact energy, the present application provides a seismic-resistant and flow-diverting storage tank pump tower structure.

[0006] This application provides a seismic-resistant and flow-guiding storage tank pump tower structure, which adopts the following technical solutions:

[0007] A seismic-resistant and diverting storage tank pump tower structure includes a mounting frame, two groups of pump pipes are arranged at intervals on the mounting frame, and a liquid inlet pipe arranged parallel to the pump pipe is provided on the mounting frame. The liquid inlet pipe and the two groups of pump pipes are connected to each other by multiple groups of connecting parts to form a triangular structure. Multiple groups of seismic-resistant diversion pipes are arranged at intervals along the axial direction on the side walls of the liquid inlet pipe or the pump pipe. The seismic-resistant diversion pipe is used to change the direction of water that partially impacts the side wall of the liquid inlet pipe from lateral impact to circumferential flow. The seismic-resistant diversion pipe is provided with a diversion assembly for diversion and shock absorption, and the diversion assembly includes:

[0008] Connecting pipe, which is connected to the tail end of the seismic flow guide pipe:

[0009] a buffer block, the buffer block being slidably disposed in the connecting pipe;

[0010] A reset member is arranged on the side of the connecting pipe away from the seismic flow guide pipe and is used to push the buffer block to reset. The buffer block compresses the reset member under the pressure of the liquid in the seismic flow guide pipe. The reset member pushes the buffer block to reset when the liquid squeezing force is small.

[0011] By adopting the above technical solution, multiple groups of connecting parts connect the liquid inlet pipe and the two groups of pump liquid pipes to form a triangular structure, thereby improving the overall stability. The impact force on the side wall of the liquid inlet pipe or the pump liquid pipe is dispersed into the multiple groups of seismic diversion pipes. The seismic diversion pipes change the water dynamic direction from lateral impact to circumferential flow, thereby reducing the impact force of the lateral impact liquid on the seismic diversion pipes. Through the active response of the buffer block and the reset member, part of the impact kinetic energy is converted into elastic potential energy and thermal energy. By reducing the impact destructive force in multiple ways, the probability of liquid damaging the side wall of the liquid inlet pipe or the pump liquid pipe is reduced, and ultimately the liquid impact energy is efficiently dispersed.

[0012] Furthermore, the seismic flow guide pipe has an annular structure on the side away from the liquid inlet pipe or the pump liquid pipe, and the water flow direction in the seismic flow guide pipe is converted from lateral impact to annular flow, thereby reducing the impact on the seismic flow guide pipe.

[0013] By adopting the above technical solution, the liquid entering the seismic diversion pipe is diverted from lateral impact to annular flow. The annular structure of the seismic diversion pipe increases the friction length between the fluid and the pipe wall, resulting in kinetic energy being converted into heat energy loss through turbulence and viscous resistance, thereby reducing the impact force of the liquid from the lateral impact on the seismic diversion pipe.

[0014] Furthermore, the anti-seismic flow guide pipe has multiple groups of spiral grooves on the inner side wall near one end of the liquid inlet pipe or the pump liquid pipe, and the depth of the multiple groups of spiral grooves near one end of the liquid inlet pipe or the pump liquid pipe is greater than the depth away from one end of the liquid inlet pipe or the pump liquid pipe. The spiral grooves are used to guide the spiral flow of liquid passing through the anti-seismic flow guide pipe.

[0015] By adopting the above technical solution, when water flows from the liquid inlet pipe or the pump liquid pipe into the seismic diversion pipe, as the depth of the spiral groove gradually decreases, the rotation of the water flow is suppressed, allowing the liquid to smoothly enter the annular structure and avoid additional pressure drop; when the liquid in the seismic diversion pipe flows back, as the depth of the spiral groove gradually increases, the liquid eventually flows back into the liquid inlet pipe or the pump liquid pipe in a swirling manner, thereby disrupting the vibrating and shaking flow field, destroying the standing wave or oscillation structure, and significantly reducing the risk of water hammer and pipeline vibration.

[0016] Furthermore, the reset member includes a damper and a compression spring, the fixed end of the damper is arranged on the connecting pipe and the movable end is connected to the buffer block, the compression spring is sleeved on the damper and the two ends are respectively pressed against the connecting pipe and the buffer block.

[0017] By adopting the above technical solution, when the liquid hits the buffer block and pushes the buffer block to slide, the buffer block compresses the compression spring, thereby converting the impact energy into elastic potential energy of the compression spring and storing it. The damper consumes the impact energy and delays the reset speed, while delaying and slowly releasing energy, reducing rebound shock, and ultimately efficiently dispersing the liquid impact energy.

[0018] Furthermore, the connecting pipe is provided with an adjusting component for adjusting the initial pressure value of the compression spring, and the adjusting component includes:

[0019] A slip ring is slidably arranged on the connecting pipe, and one end of the compression spring away from the buffer block is pressed against the slip ring;

[0020] An adjusting bolt is threadedly arranged on the connecting pipe and is rotatably connected to the slip ring. The adjusting bolt is used to adjust the distance between the slip ring and the buffer block at the initial position.

[0021] By adopting the above technical solution, the adjusting bolt is rotated and the position of the slip ring is changed to adjust the initial pressure value of the compression spring, which is convenient for adapting to the vibration level at different positions. At the same time, the starting threshold value of the buffer block is determined by adjusting the initial pressure value of the compression spring to prevent false triggering due to small disturbances.

[0022] Furthermore, a limiting ring is provided on the connecting pipe for limiting the maximum displacement of the buffer block sliding in the direction close to the sliding ring, and multiple groups of overflow holes are opened on the side wall of the connecting pipe away from the end of the seismic guide pipe. The multiple groups of overflow holes are connected to the inside of the liquid inlet pipe or the pump liquid pipe through the reflux component and are used to flow excess liquid back into the liquid inlet pipe or the pump liquid pipe. When the buffer block is pressed against the limiting ring, the multiple groups of overflow holes are connected to the inside of the seismic guide pipe.

[0023] By adopting the above technical solution, when the impact force of the incoming liquid is too large, the liquid pushes the buffer block tightly against the limit ring, and the excess liquid is discharged into the reflux assembly through the overflow hole. Finally, the liquid whose impact force is initially reduced by the anti-seismic guide tube is quickly discharged back into the liquid inlet pipe or the pump liquid pipe, reducing the probability of damage to the reset component.

[0024] Furthermore, the reflux component includes:

[0025] A reflux pipe, which is arranged on the liquid inlet pipe or the pump liquid pipe and is connected to the interior of the multiple groups of overflow holes;

[0026] A one-way valve is provided on the return pipe and only allows the liquid in the return pipe to flow from the overflow hole to the liquid inlet pipe or the pump liquid pipe.

[0027] By adopting the above technical solution, the reflux pipe is used to collect the liquid in multiple groups of overflow holes and discharge them back into the liquid inlet pipe or pump pipe, and the one-way valve ensures that the overflow liquid is unidirectionally injected into the liquid inlet pipe or pump pipe.

[0028] Furthermore, the return pipe is provided with a gradient section on the side close to the overflow hole, the diameter of the gradient section gradually decreases along the axial direction, and the diameter on the side close to the liquid inlet pipe and the pump liquid pipe is smaller than the diameter on the side close to the overflow hole, and the gradient section is provided with a contraction nozzle on the side close to the one-way valve, and the contraction nozzle is aligned with the center of the valve core of the one-way valve.

[0029] By adopting the above technical solution, the gradient section increases the flow rate and impact force of the return liquid, and at the same time, the flow rate and impact force of the return liquid are further increased by contracting the nozzle, so as to ensure the normal opening of the one-way valve.

[0030] Furthermore, a swirl buffer chamber is provided at the interface between the return pipe and the liquid inlet pipe or the pump liquid pipe, and the inner wall of the swirl buffer chamber is spirally provided with multiple groups of guide protrusions. A honeycomb ceramic rectifier is provided on one end of the swirl buffer chamber close to the liquid inlet pipe or the pump liquid pipe.

[0031] By adopting the above technical solution, the swirl buffer chamber reduces the liquid flow rate by increasing the diameter. At the same time, multiple sets of guide protrusions cause the liquid entering the swirl buffer chamber to rotate, thereby reducing the liquid impact vibration; the honeycomb ceramic rectifier breaks up large-scale vortices, thereby reducing the vortex scale of the liquid returning to the liquid inlet pipe or pump liquid pipe.

[0032] Furthermore, the contact surface between the vortex buffer chamber and the liquid inlet pipe or the pump liquid pipe and the contact surface between the seismic guide pipe and the liquid inlet pipe and the pump liquid pipe are perpendicular to each other, and the angle between the axial direction of the vortex buffer chamber and the axial direction of the liquid inlet pipe or the pump liquid pipe is between 30° and 60°.

[0033] By adopting the above technical solution, the 30°-60° angle decomposes the return flow velocity into an axial component and a tangential component, and the tangential component is perpendicular to the lateral flow direction entering the seismic-resistant guide pipe, thereby interfering with the liquid vibration in the liquid inlet pipe or pump liquid pipe, disrupting the vibrating and shaking flow field, and significantly reducing the risk of water hammer and pipeline vibration.

[0034] In summary, this application includes at least one of the following beneficial technical effects:

[0035] 1. The inlet pipe and two sets of pump pipes are interconnected into a triangular structure through multiple sets of connectors to improve overall stability. The seismic guide pipe changes the water flow direction from lateral impact to circumferential flow. The annular structure of the seismic guide pipe increases the friction length between the fluid and the pipe wall, causing kinetic energy to be converted into heat energy loss through turbulence and viscous resistance, thereby reducing the impact force of the lateral impact of the liquid on the seismic guide pipe. At the same time, the liquid pushes the buffer block to compress the compression spring and activate the damper. The damper consumes impact energy and delays the reset speed. By reducing the destructive force of the impact in multiple ways, the probability of liquid damage to the side walls of the inlet pipe or pump pipe is reduced, and ultimately the liquid impact energy is efficiently dispersed.

[0036] 2. When the compression spring pushes the buffer block to reset, the liquid in the circulation section is pushed back into the direct flow section. The liquid enters the deeper spiral groove from the shallower spiral groove, causing the reflux liquid to form a vortex in the direct flow section and eventually flow back into the liquid inlet pipe or pump liquid pipe in the form of a vortex, thereby disrupting the vibrating and shaking flow field, destroying the standing wave or oscillation structure, and significantly reducing the risk of water hammer and pipeline vibration.

[0037] 3. The overflowing liquid is returned to the liquid inlet pipe or pump liquid pipe through the return pipe. At the same time, the inclined swirl buffer chamber allows the refluxed liquid to enter the liquid inlet pipe or pump liquid pipe at a certain angle to the vibration direction in the liquid inlet pipe or pump liquid pipe, thereby disrupting the vibrating flow field and significantly reducing the risk of water hammer and pipeline vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Schematic diagram of the structure of the seismic-resistant and flow-diverting storage tank tower structure of Example 1 of the present application;

[0039] Figure 2 Schematic diagram of the structure of the seismic diversion pipe and diversion assembly of Example 1 of the present application;

[0040] Figure 3 yes Figure 2 A magnified schematic diagram of part A in the middle;

[0041] Figure 4 1 is a schematic structural diagram of a seismic flow guide pipe and a flow guide assembly according to Example 2 of the present application, wherein a partial cross-section of the direct current section of the seismic flow guide pipe is provided;

[0042] Figure 5 Schematic diagram of the structure of the seismic-resistant and flow-diverting storage tank tower structure of Example 3 of the present application;

[0043] Figure 6 Schematic diagram of the structure of the reflux assembly of Example 3 of the present application;

[0044] Figure 7 yes Figure 6 Enlarged schematic diagram of part B in the middle.

[0045] Figure numerals: 1. Liquid inlet pipe; 11. Pump liquid pipe; 12. Connecting part; 2. Anti-seismic guide pipe; 21. DC section; 211. Spiral groove; 22. Circulating section; 3. Guide assembly; 31. Connecting pipe; 32. Buffer block; 33. Reset part; 331. Compression spring; 332. Damper; 34. Limiting ring; 4. Adjusting assembly; 41. Sliding ring; 42. Adjusting bolt; 5. Return assembly; 51. Return pipe; 511. Gradual section; 52. One-way valve; 6. Contraction nozzle; 7. Swirl buffer chamber. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-Figure 7 This application is described in further detail.

[0047] The embodiments of the present application disclose a seismic-resistant and flow-diverting storage tank pump tower structure.

[0048] Example 1

[0049] Reference Figure 1 A seismic-resistant and diverting storage tank pump tower structure includes a mounting frame, two groups of pump liquid pipes 11 are arranged at intervals on the mounting frame, and a liquid inlet pipe 1 arranged parallel to the pump liquid pipe 11 is arranged on the mounting frame. The liquid inlet pipe 1 and the two groups of pump liquid pipes 11 are connected to each other through multiple groups of connecting parts 12 to form a triangular structure. Multiple groups of seismic-resistant diversion pipes 2 are arranged at intervals along the axial direction on the side walls of the liquid inlet pipe 1 or the pump liquid pipe 11. The seismic-resistant diversion pipe 2 is used to change the direction of water that partially hits the side wall of the liquid inlet pipe 1 from lateral impact to circumferential flow. The seismic-resistant diversion pipe 2 is provided with a diversion component 3 for diversion and shock absorption.

[0050] Reference Figure 1 Seismic flow guide pipes 2 are provided on the side walls of the liquid inlet pipe 1 and the pump liquid pipe 11. The seismic flow guide pipes 2 are fixedly mounted on the connecting piece 12, and the connecting piece 12 supports and fixes the bottom of the seismic flow guide pipe 2; multiple groups of seismic flow guide pipes 2 on the same liquid inlet pipe 1 or pump liquid pipe 11 are all located on the same side.

[0051] Reference Figure 2The seismic diversion pipe 2 includes a direct current section 21 and a circulation section 22. The direct current section 21 is fixedly connected to the liquid inlet pipe 1 or the pump liquid pipe 11 to guide the liquid that laterally impacts the pipe wall in the liquid inlet pipe 1 or the pump liquid pipe 11, thereby reducing the lateral impact force of the liquid on the side wall of the liquid inlet pipe 1 or the pump liquid pipe 11; the circulation section 22 is fixedly connected to the end of the direct current section 21 away from the liquid inlet pipe 1 or the pump liquid pipe 11. The circulation section 22 has an annular structure. The circulation section 22 is used to guide the liquid that laterally impacts in the direct current section 21 into an annular flow, and increases the friction length between the fluid and the pipe wall through the spiral path, resulting in kinetic energy being converted into heat energy loss through turbulence and viscous resistance, thereby reducing the impact force of the liquid that laterally impacts on the seismic diversion pipe 2; the circulation section 22 of this embodiment is composed of a spirally coiled pipe. The inner diameter of the pipe of the circulation section 22 remains unchanged, and the radius of curvature gradually decreases as it spirals upward. At the same time, as the radius of curvature gradually decreases, the wall thickness of the circulation pipe gradually increases.

[0052] Reference Figure 2 and Figure 3 The guide assembly 3 includes a connecting pipe 31, a buffer block 32 and a reset piece 33. The connecting pipe 31 is connected to the tail end of the circulation section 22. The center lines of the connecting pipe 31 and the circulation section 22 coincide with each other, and the interior of the connecting pipe 31 is sealed; the buffer block 32 is slidably installed in the connecting pipe 31. When the buffer block 32 slides in the connecting pipe 31, the communication volume between the connecting pipe 31 and the circulation section 22 is changed, thereby facilitating the flow of liquid in the seismic guide pipe 2; the reset piece 33 is arranged on the side of the connecting pipe 31 away from the seismic guide pipe 2. The reset piece 33 is used to push the buffer block 32 to reset. The buffer block 32 compresses the reset piece 33 under the pressure of the liquid in the seismic guide pipe 2. The reset piece 33 pushes the buffer block 32 to reset when the liquid squeezing force is small.

[0053] Reference Figure 3 The reset member 33 includes a damper 332 and a compression spring 331. The fixed end of the damper 332 is fixedly mounted on the connecting pipe 31, and the movable end of the damper 332 is fixedly connected to the buffer block 32. The damper 332 is used to buffer the sliding of the buffer block 32; the compression spring 331 is sleeved on the damper 332, and the two ends of the compression spring 331 are respectively pressed against the connecting pipe 31 and the buffer block 32; when the impact force of the liquid in the seismic diversion pipe 2 on the buffer block 32 is greater than the compression spring When the elastic force of 331 is less than that of the compression spring 331, the liquid pushes the buffer block 32 to slide toward the top of the connecting tube 31, thereby compressing the compression spring 331. The damper 332 reduces the sliding speed of the buffer block 32 and consumes part of the impact energy of the liquid. When the impact force of the liquid on the buffer block 32 is less than the elastic force of the compression spring 331, the compression spring 331 pushes the buffer block 32 to reset. At the same time, the damper 332 delays the release speed of the compression spring 331 to avoid secondary impact caused by rapid rebound of the buffer block 32.

[0054] Reference Figure 3 The connecting tube 31 is provided with an adjusting component 4 for adjusting the initial pressure value of the compression spring 331. The adjusting component 4 includes a sliding ring 41 and an adjusting bolt 42. The sliding ring 41 is slidingly installed on the connecting tube 31, and the end of the compression spring 331 away from the buffer block 32 is pressed against the sliding ring 41; the adjusting bolt 42 is threadedly installed on the connecting tube 31, and one end of the adjusting bolt 42 is rotatably connected to the sliding ring 41. The adjusting bolt 42 is used to adjust the distance value between the sliding ring 41 and the buffer block 32 in the initial position, so as to facilitate the adjustment of the initial pressure value of the compression spring 331.

[0055] The working principle of Example 1 of the present application is:

[0056] The liquid inlet pipe 1 and the two groups of pump liquid pipes 11 are connected to each other in a triangular structure by multiple groups of connecting parts 12 to improve the overall stability. When the liquid in the liquid inlet pipe 1 and the pump liquid pipe 11 vibrates due to vibration, the liquid shakes with the vibration, causing the liquid to laterally impact the liquid inlet pipe 1 or the pump liquid pipe 11. The direct current section 21 of the seismic guide pipe 2 guides the impact water flow to the annular flow section 22, and changes the hydrodynamic direction from lateral impact to annular flow by spiral winding. The friction length between the fluid and the pipe wall is increased through the spiral path, resulting in kinetic energy being converted into heat energy loss through turbulence and viscous resistance, thereby reducing the impact force of the laterally impacted liquid on the seismic guide pipe 2. At the same time, the liquid pushes the buffer block 32 to compress the compression spring 331 and activate the damper 332. The damper 332 consumes the impact energy and delays the reset speed. By reducing the impact destructive force in multiple ways, the probability of the liquid damaging the side wall of the liquid inlet pipe 1 or the pump liquid pipe 11 is reduced, and finally the liquid impact energy is efficiently dispersed.

[0057] Example 2

[0058] Reference Figure 4The difference between this embodiment and embodiment 1 is that multiple groups of spiral grooves 211 are formed on the inner side wall of the direct current section 21, and the depth of the multiple groups of spiral grooves 211 near the liquid inlet pipe 1 or the pump liquid pipe 11 is greater than the depth near the circulation section 22. As the spiral grooves 211 get closer to the circulation section 22, the depth of the spiral grooves 211 becomes shallower until the spiral grooves 211 completely disappear at the contact point with the circulation section 22. In this way, when water flows from the liquid inlet pipe 1 or the pump liquid pipe 11 into the direct current section 21, as the depth of the spiral grooves 211 gradually decreases, the rotation of the water flow is suppressed, allowing the liquid to smoothly enter the circulation section 22, avoiding additional pressure drop. The circulation section 22 consumes initial energy through a spiral path with a decreasing curvature radius, and at the same time consumes energy again through the cooperation of the compression spring 331, the damper 332 and the buffer block 32; when the compression spring 331 pushes the buffer block 32 to reset, the liquid in the circulation section 22 is pushed back into the direct current section 21, and the liquid enters the deeper spiral groove 211 from the shallower spiral groove 211, so that the reflux liquid forms a vortex in the direct current section 21, and finally flows back to the liquid inlet pipe 1 or the pump liquid pipe 11 in the form of a vortex, thereby disrupting the vibrating and shaking flow field, destroying the standing wave or oscillation structure, and significantly reducing the risk of water hammer and pipeline vibration.

[0059] Example 3

[0060] Reference Figure 5 、 Figure 6 and Figure 7 The difference between this embodiment and embodiment 1 is that a limit ring 34 is fixedly installed on the connecting pipe 31 for limiting the maximum displacement of the buffer block 32 sliding in the direction close to the sliding ring 41. When the buffer block 32 slides in the direction close to the sliding ring 41, the compression spring 331 is compressed. Finally, the buffer block 32 is pressed against the limit ring 34 and the limit ring 34 prevents the buffer block 32 from sliding further. A plurality of overflow holes are provided on the side wall of the connecting pipe 31 away from the end of the seismic guide pipe 2. The plurality of overflow holes are connected to the inside of the liquid inlet pipe 1 or the pump liquid pipe 11 through the reflux component 5, so as to facilitate the flow of excess liquid back into the liquid inlet pipe 1 or the pump liquid pipe 11. When the buffer block 32 is pressed against the limit ring 34, the plurality of overflow holes are connected to the inside of the seismic guide pipe 2. The diameter of the overflow hole in this embodiment is smaller than the thickness of the buffer block 32.

[0061] Reference Figure 6 and Figure 7The reflux component 5 includes a reflux pipe 51 and a one-way valve 52. The reflux pipe 51 is arranged on the side wall of the liquid inlet pipe 1 or the pump liquid pipe 11. The reflux pipe 51 is connected to the interior of the multiple overflow holes. The reflux pipe 51 is used to quickly flow the liquid entering the overflow holes back into the liquid inlet pipe 1 or the pump liquid pipe 11; the one-way valve 52 is fixedly installed on the reflux pipe 51, and the one-way valve 52 only allows the liquid in the reflux pipe 51 to flow from the overflow holes to the liquid inlet pipe 1 or the pump liquid pipe 11; specifically, when the impact force of the liquid in the liquid inlet pipe 1 or the pump liquid pipe 11 is large, after the liquid pushes the buffer block 32 to press against the limit ring 34, the liquid impact force is still greater than the elastic force of the compression spring 331, and the excess liquid flows into the reflux pipe 51 through the overflow hole, and then the one-way valve 52 is opened, so that the excess liquid in the reflux pipe 51 flows back into the liquid inlet pipe 1 or the pump liquid pipe 11.

[0062] Reference Figure 6 A gradient section 511 is provided on the side of the return pipe 51 near the overflow hole. The diameter of the gradient section 511 gradually decreases along the axial direction, and the diameter on the side close to the liquid inlet pipe 1 and the pump liquid pipe 11 is smaller than the diameter on the side of the overflow hole. A contraction nozzle 6 is provided on the side of the gradient section 511 near the one-way valve 52. The contraction nozzle 6 is aligned with the center of the valve core of the one-way valve 52. When the liquid flows into the return pipe 51 through the overflow hole, the flow speed of the liquid is accelerated by the gradient section 511, and finally the high-speed liquid ejected by the contraction nozzle 6 opens the one-way valve 52, so that the liquid in the return pipe 51 passes through the one-way valve 52. The outer diameter of the return pipe 51 of this embodiment remains unchanged, and its inner diameter gradually decreases, so that the wall of the part with faster liquid flow speed is thicker.

[0063] Reference Figure 6 A swirl buffer chamber 7 is provided at the interface between the return pipe 51 and the liquid inlet pipe 1 or the pump liquid pipe 11. A plurality of groups of guide protrusions are provided on the inner wall of the swirl buffer chamber 7 to rotate the liquid entering the swirl buffer chamber 7, thereby reducing the impact and vibration of the liquid; and the diameter of the swirl buffer chamber 7 is increased to slow down the flow rate of the liquid; at the same time, a honeycomb ceramic rectifier is provided on one end of the swirl buffer chamber 7 close to the liquid inlet pipe 1 or the pump liquid pipe 11, which breaks up large-scale vortices through the honeycomb ceramic rectifier, thereby reducing the vortex scale of the liquid returning to the liquid inlet pipe 1 or the pump liquid pipe 11.

[0064] Reference Figure 6 The contact surface between the swirl buffer chamber 7 and the liquid inlet pipe 1 or the pump liquid pipe 11 and the contact surface between the seismic guide pipe 2 and the liquid inlet pipe 1 and the pump liquid pipe 11 are perpendicular to each other. The angle between the axial direction of the swirl buffer chamber 7 and the axial direction of the liquid inlet pipe 1 or the pump liquid pipe 11 is between 30° and 60°, so that the liquid discharged through the swirl buffer chamber 7 rotates slightly and has a certain angle with the vibration direction in the liquid inlet pipe 1 or the pump liquid pipe 11, thereby disrupting the vibrating and shaking flow field, destroying the standing wave or oscillation structure, and significantly reducing the risk of water hammer and pipeline vibration.

[0065] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A seismic-resistant and flow-guiding storage tank pump tower structure, characterized by: The invention comprises a mounting frame, wherein two groups of pump liquid pipes (11) are arranged at intervals on the mounting frame, and a liquid inlet pipe (1) arranged parallel to the pump liquid pipe (11) is arranged on the mounting frame, and the liquid inlet pipe (1) and the two groups of pump liquid pipes (11) are connected to each other through multiple groups of connecting pieces (12) to form a triangular structure, and multiple groups of anti-seismic flow guide pipes (2) are arranged at intervals along the axial direction on the side wall of the liquid inlet pipe (1) or the pump liquid pipe (11), and the anti-seismic flow guide pipe (2) is used to change the direction of water that partially impacts the side wall of the liquid inlet pipe (1) from lateral impact to annular flow, and a flow guide component (3) for diverting and reducing shock is provided on the anti-seismic flow guide pipe (2), and the flow guide component (3) comprises: A connecting pipe (31), wherein the connecting pipe (31) is connected to the tail end of the seismic flow guide pipe (2): a buffer block (32), the buffer block (32) being slidably disposed in the connecting pipe (31); a reset member (33), the reset member (33) being arranged on a side of the connecting pipe (31) away from the anti-seismic flow guide pipe (2) and being used to push the buffer block (32) to reset; the buffer block (32) compresses the reset member (33) under the pressure of the liquid in the anti-seismic flow guide pipe (2); and the reset member (33) pushes the buffer block (32) to reset when the liquid squeezing force is small; The reset member (33) includes a damper (332) and a compression spring (331), wherein the fixed end of the damper (332) is arranged on the connecting tube (31) and the movable end is connected to the buffer block (32), and the compression spring (331) is sleeved on the damper (332) and its two ends are respectively pressed against the connecting tube (31) and the buffer block (32); The connecting pipe (31) is provided with an adjusting component (4) for adjusting the initial pressure value of the compression spring (331), and the adjusting component (4) comprises: A sliding ring (41), wherein the sliding ring (41) is slidingly arranged on the connecting pipe (31), and one end of the compression spring (331) away from the buffer block (32) is pressed against the sliding ring (41); an adjusting bolt (42), the adjusting bolt (42) being threadedly disposed on the connecting pipe (31) and being rotatably connected to the slip ring (41), the adjusting bolt (42) being used to adjust the distance between the slip ring (41) and the buffer block (32) at an initial position; The connecting pipe (31) is provided with a limiting ring (34) for limiting the maximum displacement of the buffer block (32) sliding in a direction close to the sliding ring (41). The connecting pipe (31) is provided with a plurality of overflow holes on a side wall at one end away from the anti-seismic guide pipe (2). The plurality of overflow holes are connected to the interior of the liquid inlet pipe (1) or the pump liquid pipe (11) through a reflux component (5) and are used to flow excess liquid back into the liquid inlet pipe (1) or the pump liquid pipe (11). When the buffer block (32) is pressed against the limiting ring (34), the plurality of overflow holes are connected to the interior of the anti-seismic guide pipe (2).

2. The seismic-resistant and flow-guiding storage tank pump tower structure according to claim 1, characterized in that: The anti-seismic flow guide pipe (2) has an annular structure on the side away from the liquid inlet pipe (1) or the pump liquid pipe (11) and diverts the water flow direction in the anti-seismic flow guide pipe (2) from lateral impact to annular flow, thereby reducing the impact on the anti-seismic flow guide pipe (2).

3. The seismic-resistant and flow-guiding storage tank pump tower structure according to claim 2, characterized in that: The anti-seismic flow guide pipe (2) has multiple sets of spiral grooves (211) on its inner side wall near one end of the liquid inlet pipe (1) or the liquid pump pipe (11), and the depth of the multiple sets of spiral grooves (211) near one end of the liquid inlet pipe (1) or the liquid pump pipe (11) is greater than the depth of the end away from the liquid inlet pipe (1) or the liquid pump pipe (11). The spiral grooves (211) are used to guide the spiral flow of liquid passing through the anti-seismic flow guide pipe (2).

4. The seismic-resistant and flow-guiding storage tank pump tower structure according to claim 1, characterized in that: The reflux component (5) comprises: A reflux pipe (51), the reflux pipe (51) being arranged on the liquid inlet pipe (1) or the liquid pump pipe (11) and being in communication with the interior of the plurality of overflow holes; A one-way valve (52) is provided on the return pipe (51), and the one-way valve (52) only allows the liquid in the return pipe (51) to flow from the overflow hole into the liquid inlet pipe (1) or the pump liquid pipe (11).

5. The seismic-resistant and flow-guiding storage tank pump tower structure according to claim 4, characterized in that: A gradient section (511) is provided on the side of the return pipe (51) close to the overflow hole. The diameter of the gradient section (511) gradually decreases along the axial direction, and the diameter on the side close to the liquid inlet pipe (1) and the pump liquid pipe (11) is smaller than the diameter on the side close to the overflow hole. A contraction nozzle (6) is provided on the side of the gradient section (511) close to the one-way valve (52). The contraction nozzle (6) is aligned with the center of the valve core of the one-way valve (52).

6. The seismic-resistant and flow-guiding storage tank pump tower structure according to claim 5, characterized in that: A swirl buffer chamber (7) is provided at the interface between the return pipe (51) and the liquid inlet pipe (1) or the pump liquid pipe (11), and a plurality of groups of flow-guiding protrusions are spirally provided on the inner wall of the swirl buffer chamber (7). A honeycomb ceramic rectifier is provided on one end of the swirl buffer chamber (7) close to the liquid inlet pipe (1) or the pump liquid pipe (11).

7. The seismic-resistant and flow-guiding storage tank pump tower structure according to claim 6, characterized in that: The contact surface between the swirl buffer chamber (7) and the liquid inlet pipe (1) or the pump liquid pipe (11) and the contact surface between the anti-seismic flow guide pipe (2), the liquid inlet pipe (1) and the pump liquid pipe (11) are perpendicular to each other, and the angle between the axis direction of the swirl buffer chamber (7) and the axis direction of the liquid inlet pipe (1) or the pump liquid pipe (11) is between 30° and 60°.

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