Pipeline anti-blocking structure and method

Abstract

This invention discloses an anti-clogging structure and method for pile driving pipes, including a pile driving nozzle comprising a spray pipe and a cap. This invention relates to the field of marine platform technology. The anti-clogging structure and method, through the arrangement of the connecting pipe and the sealing spring, ensures effective connection between the sealing ring and the bottom of the spray pipe's inner cavity, preventing impurities from the external environment from entering the spray pipe. With the cooperation of the inlet pipe and the upper spray groove, when pressurized water is injected into the upper spray groove, it pushes the sealing ring upwards, thus ensuring that water can be sprayed out from several inclined outlets. When pressurized water is no longer supplied to the inlet pipe, the sealing spring automatically resets the sealing ring, achieving an automatic anti-clogging effect. This automatically isolates impurities from the external environment. Furthermore, the sealing spring's isolation from the external environment ensures its long-term stable use, providing convenience for customers.

Description

Technical Field

[0001] This invention relates to the field of marine platform technology, specifically to a structure and method for preventing blockage of rammed pile pipes. Background Technology

[0002] After the offshore platform operation is completed, it needs to be lowered to remove the piles and move to the next work site. Due to the complex properties of the seabed soil, the pile legs may penetrate too deeply into the mud or the soil may flow back, resulting in excessive resistance and difficulty in removing the piles. At this time, it is necessary to carry out pile driving operation to reduce the adhesion of the mud to the pile shoes and ensure that the platform can remove the piles smoothly. However, during the process of the platform pile shoes penetrating the seabed, seabed mud and sand often "backflow" into the pile driving pipeline, causing blockage of the pile driving port of the self-elevating platform, which makes it difficult to achieve the expected pile driving effect and makes it difficult to pull up the platform pile legs.

[0003] As described in application number 201710151383.6, a self-elevating offshore platform pile shoe system for preventing pile pipeline blockage addresses the problem of seabed sediment clogging the pile pipeline by setting up a stepped, progressive anti-blockage measure. However, it still suffers from the problem that seabed sediment can easily enter the pile nozzle, requiring manual disassembly and cleaning. This inability to automatically isolate seabed sediment makes it inconvenient to use. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a structure and method for preventing blockage in pile driving pipes, which solves the problem that conventional pile driving nozzles cannot automatically isolate seabed sediment, leading to inconvenience in use.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pile-driving pipe anti-clogging structure, comprising a pile-driving nozzle, the pile-driving nozzle comprising a spray pipe and a cap, the cap and the spray pipe being fixedly connected by bolts, a water inlet pipe being provided through the top of the cap, a sealing ring being slidably installed at the bottom of the inner cavity of the spray pipe, a connecting pipe being connected and fixedly installed at the top of the sealing ring, the water inlet pipe passing through the connecting pipe, a sealing spring being sleeved on the outer circumference of the connecting pipe, an adjusting component being provided on the outer circumference of the water inlet pipe, the two ends of the sealing spring being in contact with the adjusting component and the opposite side of the sealing ring respectively, a plurality of inclined outlets being evenly spaced on the outer circumference of the spray pipe, the sealing ring being used to seal the plurality of inclined outlets, and an upper flushing groove being provided at the bottom of the inner cavity of the spray pipe.

[0008] The present invention is further configured such that: the regulating component includes a sealing ring and a water outlet capillary tube, a sealing sleeve is fixedly installed inside the sealing ring, the sealing sleeve is sleeved on the outer periphery of the water inlet pipe, and an electromagnetic control valve for controlling the water outlet of the water outlet capillary tube is provided on the outer surface of the water outlet capillary tube.

[0009] The invention is further configured such that: the outer periphery of the sealing ring slides in contact with the inner surface of the nozzle, and the bottom of the sealing ring contacts one end of the sealing spring; a water guide pipe is connected to the outer periphery of the water inlet pipe and above the sealing ring; and one end of the water guide pipe is connected to one end of the water outlet capillary.

[0010] The present invention is further configured such that: a reinforcing ring is sleeved and fixedly installed on the outer periphery of the water inlet pipe, and the reinforcing ring is disposed between the cover and the water guide pipe.

[0011] The present invention is further configured such that: a first sealing gasket is fitted around the outer periphery of the water inlet pipe, the outer periphery of the first sealing gasket slides in contact with the inner surface of the nozzle, and the top and bottom of the first sealing gasket respectively contact the opposite side of the cap and the reinforcing ring.

[0012] The present invention is further configured such that: a positioning nut is threadedly connected to the top of the outer periphery of the water inlet pipe, and a second sealing gasket is sleeved on the outer periphery of the water inlet pipe, and the top and bottom of the second sealing gasket are respectively in contact with the positioning nut and the sealing cap on opposite sides.

[0013] The invention is further configured such that: a plurality of sealing rods are fixedly installed at the bottom of the sealing ring, and a plurality of through holes adapted to the sealing rods are opened at the bottom of the upper punch groove, wherein the diameter of the through holes is one-third to one-half of the diameter of the inclined outlet.

[0014] The present invention is further configured such that a cover ring is sleeved and fixedly installed on the outer periphery of the sealing rod, and the bottom of the cover ring is in contact with the bottom of the inner cavity of the upper punch groove.

[0015] The present invention is further configured such that a threaded pipe is connected to and fixedly installed at the top of the water inlet pipe.

[0016] This invention also discloses a method for preventing blockage of the pile pipe, which specifically includes the following steps:

[0017] Step 1, Assembly: Place the sealing ring and connecting pipe into the nozzle, insert the sealing rod into the through hole, then put the sealing ring and sealing sleeve onto the water inlet pipe together. Place the sealing spring on the outer circumference of the connecting pipe, insert the water inlet pipe into the nozzle and into the connecting pipe, then put the first sealing gasket onto the water inlet pipe, put the cap onto the water inlet pipe, and tighten the bolts to fix the cap and nozzle. Then put the second sealing gasket onto the water inlet pipe and tighten the fastening nut. This completes the assembly of the pile driving nozzle. Finally, connect the water inlet pipe to the external flushing pipeline through the threaded pipe to complete the assembly.

[0018] Step 2, Pressure Adjustment: When it is necessary to adjust the pressure applied by the sealing spring to the sealing ring, water is injected into the external flushing pipeline. Water enters the inlet pipe through the threaded pipe. At the same time, the electromagnetic control valve is opened. The water in the inlet pipe flows into the top of the sealing ring through the guide pipe and the outlet pipe. As the water above the sealing ring increases, the sealing ring drives the sealing sleeve to move downward along the inlet pipe, squeezing the sealing spring. Then the electromagnetic control valve is closed.

[0019] Step 3, Anti-clogging: When the pile nozzle is not in use, the sealing spring pushes the sealing ring to make tight contact with the bottom of the nozzle cavity, thus sealing the inclined outlet. At this time, the cover ring makes tight contact with the bottom of the upper punch groove cavity, thus sealing the through hole.

[0020] Step 4, Flushing: When the pile driving operation begins, the external water pump starts to inject water into the inlet pipe through the external flushing pipeline. The pressurized water rushes into the upper flushing groove, squeezing the sealing ring to move upward, causing the inclined outlet to leak out. Water begins to spray out from the inclined outlet. During the upward movement of the sealing ring, it drives the sealing rod to move upward, exposing the through hole. Some water sprays out from the through hole, and the pile driving operation is carried out.

[0021] (III) Beneficial Effects

[0022] This invention provides a structure and method for preventing blockage of percussion piles. It has the following beneficial effects:

[0023] (1) By setting the connecting pipe and the sealing spring, the present invention ensures effective docking between the sealing ring and the bottom of the nozzle cavity, preventing impurities in the external environment from entering the nozzle. With the cooperation of the water inlet pipe and the upper flushing groove, when pressurized water is flushed into the upper flushing groove, the sealing ring can be pushed to move upward, thereby ensuring that water can be sprayed out from several inclined outlets. When pressurized water is no longer input into the water inlet pipe, the sealing spring can push the sealing ring to automatically reset, achieving the effect of automatic anti-blocking, thereby realizing the automatic isolation of impurities in the external environment. Furthermore, the sealing spring is isolated from the external environment, which can ensure the long-term stable use of the sealing spring and provide convenient conditions for customers.

[0024] (2) The present invention uses the combination of sealing sleeve, sealing ring, water outlet capillary tube, electromagnetic control valve and water guide pipe to continuously inject water into the space above the sealing ring through the water outlet capillary tube, thereby adjusting the pressure applied by the sealing spring to the sealing ring, and further ensuring that the sealing ring effectively seals several inclined outlets when no pile driving operation is being carried out.

[0025] (3) By setting up the sealing rod and the through hole, the present invention can achieve the diversity of water output from the nozzle, and with the setting of the cover ring, it can effectively ensure the sealing of the through hole when no pile driving operation is carried out. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0027] Figure 2 This is a schematic diagram showing the connection of the water inlet pipe, water guide pipe, reinforcing ring, and threaded pipe structure of the present invention;

[0028] Figure 3 This is a bottom view of the sealing ring structure of the present invention;

[0029] Figure 4 This is a schematic diagram showing the connection between the sealing ring and the connecting pipe structure of the present invention;

[0030] Figure 5 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A;

[0031] In the diagram, 1. Pipe nozzle; 2. Spray pipe; 3. Cover; 4. Inlet pipe; 5. Sealing ring; 6. Connecting pipe; 7. Sealing spring; 8. Adjustment assembly; 9. Inclined outlet; 10. Upper flushing groove; 11. Sealing ring; 12. Outlet cap; 13. Sealing sleeve; 14. Electromagnetic control valve; 15. Water guide pipe; 16. Reinforcing ring; 17. First sealing gasket; 18. Positioning nut; 19. Second sealing gasket; 20. Sealing rod; 21. Through hole; 22. Covering ring; 23. Threaded pipe. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0033] Please see Figure 1-5 The present invention provides the following two technical solutions:

[0034] Example 1

[0035] Pipeline anti-blocking structure, such as Figure 1 As shown, the pile nozzle 1 consists of a nozzle 2 and a cover 3, and the cover 3 and the nozzle 2 are fixedly connected by bolts.

[0036] As a preferred option, in order to realize the pile driving operation, the top of the cover 3 is provided with a water inlet pipe 4, and the outer periphery of the spray pipe 2 is provided with several inclined outlets 9 at even intervals.

[0037] As a preferred solution, in order to prevent impurities from the external environment from entering the nozzle 2, a sealing ring 5 is slidably installed at the bottom of the inner cavity of the nozzle 2, and a connecting pipe 6 is connected and fixedly installed at the top of the sealing ring 5. The water inlet pipe 4 passes through the connecting pipe 6, and a sealing spring 7 is sleeved on the outer periphery of the connecting pipe 6. The sealing ring 5 is elastically limited by the elastic force of the sealing spring 7. The sealing ring 5 is used to seal several inclined outlets 9.

[0038] As a preferred option, in order to ensure effective water discharge from the inclined outlet 9 during pile driving operations, an upper flushing groove 10 is provided at the bottom of the inner cavity of the nozzle 2.

[0039] As a preferred embodiment, in order to achieve convenient connection between the water inlet pipe 4 and the cap 3, a reinforcing ring 16 is fitted and fixedly installed on the outer periphery of the water inlet pipe 4, and a first sealing gasket 17 is fitted on the outer periphery of the water inlet pipe 4. The outer periphery of the first sealing gasket 17 slides in contact with the inner surface of the spray pipe 2. The top and bottom of the first sealing gasket 17 are in contact with the opposite sides of the cap 3 and the reinforcing ring 16, respectively. A positioning nut 18 is threadedly connected to the top of the outer periphery of the water inlet pipe 4. A second sealing gasket 19 is fitted on the outer periphery of the water inlet pipe 4, and the top and bottom of the second sealing gasket 19 are in contact with the opposite sides of the positioning nut 18 and the cap 3, respectively. In order to facilitate stable connection between the water inlet pipe 4 and the external flushing pipeline, a threaded pipe 23 is connected and fixedly installed on the top of the water inlet pipe 4.

[0040] In this embodiment, while enabling convenient assembly between the water inlet pipe 4 and the pile driving nozzle 1, it can ensure that water can be effectively discharged from the inclined outlet 9 during pile driving operations, and automatically seal the inclined outlet 9 when pile driving operations are not being carried out.

[0041] Example 2

[0042] This embodiment, as an improvement on the previous embodiment, further includes an adjustment component 8 disposed on the outer periphery of the inlet pipe 4. The adjustment component 8 includes a sealing ring 11 and an outlet capillary tube 12. A sealing sleeve 13 is fixedly installed inside the sealing ring 11 and is fitted onto the outer periphery of the inlet pipe 4. An electromagnetic control valve 14 for controlling the water outlet of the outlet capillary tube 12 is disposed on the outer surface of the outlet capillary tube 12. The electromagnetic control valve 14 is powered by a built-in button battery and is controlled to open and close by wireless communication with an external controller. The outer periphery of the sealing ring 11 slides in contact with the inner surface of the nozzle 2, and the bottom of the sealing ring 11 contacts one end of the sealing spring 7. A water guide pipe 15 is connected to the outer periphery of the inlet pipe 4 and above the sealing ring 11. The water guide pipe 15 is connected to one end of the outlet capillary tube 12, and a reinforcing ring 16 is disposed between the cap 3 and the water guide pipe 15.

[0043] The advantage of Embodiment 2 over Embodiment 1 is that, by controlling the opening and closing of the electromagnetic control valve 14, water in the inlet pipe 4 can be directed to the top of the sealing ring 11, thereby pushing the sealing ring 11 downward, increasing the pressure applied by the sealing spring 7 to the sealing ring 5, and ensuring the stability of the position of the sealing ring 5 when no pile driving operation is being carried out.

[0044] The method for preventing blockage of the pile pipe includes the following steps:

[0045] Step 1, Assembly: Place the sealing ring 5 and the connecting pipe 6 into the nozzle 2, insert the sealing rod 20 into the through hole 21, then put the sealing ring 11 and the sealing sleeve 13 onto the water inlet pipe 4 together. Place the sealing spring 7 on the outer circumference of the connecting pipe 6, insert the water inlet pipe 4 into the nozzle 2 and into the connecting pipe 6, then put the first sealing gasket 17 onto the water inlet pipe 4, put the cap 3 onto the water inlet pipe 4, and tighten the bolts to fix the cap 3 and the nozzle 2. Then put the second sealing gasket 19 onto the water inlet pipe 4 and tighten the fastening nut. This completes the assembly of the pile driving nozzle 1. Then connect the water inlet pipe 4 to the external flushing pipeline through the threaded pipe 23 to complete the assembly.

[0046] Step 2, Pressure Adjustment: When it is necessary to adjust the pressure of the sealing spring 7 to the sealing ring 5, water is injected into the external flushing pipeline. Water enters the inlet pipe 4 through the threaded pipe 23. At the same time, the electromagnetic control valve 14 is opened. The water in the inlet pipe 4 flows into the upper part of the sealing ring 11 through the guide pipe 15 and the outlet capillary pipe 12. As the water above the sealing ring 11 increases, the sealing ring 11 drives the sealing sleeve 13 to move downward along the inlet pipe 4, squeezing the sealing spring 7. Then the electromagnetic control valve 14 is closed.

[0047] Step 3, Anti-clogging: When the pile nozzle 1 is not in use, the sealing spring 7 pushes the sealing ring 5 to make close contact with the bottom of the inner cavity of the nozzle 2, thus blocking the inclined outlet 9. At this time, the cover ring 22 makes close contact with the bottom of the inner cavity of the upper punching groove 10, thus blocking the through hole 21.

[0048] Step 4, Flushing: When the pile driving operation begins, the external water pump starts to inject water into the inlet pipe 4 through the external flushing pipeline. The pressurized water rushes into the upper flushing groove 10, squeezing the sealing ring 5 to move upward, causing the inclined outlet 9 to leak out. Water begins to spray out from the inclined outlet 9. During the upward movement of the sealing ring 5, it drives the sealing rod 20 to move upward, exposing the through hole 21. Some water sprays out from the through hole 21 to carry out the pile driving operation.

Claims

1. A method of preventing clogging of a pile pipe, characterized by: The utility model provides a pile driving pipe anti -blocking structure, the pile driving pipe anti -blocking structure includes pile driving nozzle (1), it is characterized by: the pile driving nozzle (1) includes spray pipe (2) and cover (3), cover (3) and spray pipe (2) between through bolt fixed connection, the top of cover (3) is passed through and is provided with water inlet pipe (4), the bottom of spray pipe (2) inner chamber is slidably installed and blocks ring (5), the top of blocking ring (5) is communicated and fixedly installed and is docked pipe (6), water inlet pipe (4) passes through the setting of docked pipe (6), the outer periphery of docked pipe (6) is equipped with blocking spring (7), the outer periphery of water inlet pipe (4) is provided with adjusting assembly (8), the both ends of blocking spring (7) respectively with adjusting assembly (8) and the opposite side of blocking ring (5) contact, the outer periphery of spray pipe (2) is evenly provided with a plurality of inclined outlet (9), blocking ring (5) is used for blocking a plurality of inclined outlet (9), and the bottom of spray pipe (2) inner chamber is provided with upper flushing groove (10); The adjusting assembly (8) includes a sealing ring (11) and a water outlet tube (12), the sealing ring (11) is fixedly installed with a sealing sleeve (13) inside, the sealing sleeve (13) is sleeved on the outer periphery of the water inlet pipe (4), and the outer surface of the water outlet tube (12) is provided with an electromagnetic control valve (14) for controlling the water outlet of the water outlet tube (12); The outer periphery of the sealing ring (11) is in sliding contact with the inner surface of the spray pipe (2), and the bottom of the sealing ring (11) is in contact with one end of the blocking spring (7), the outer periphery of the water inlet pipe (4) and above the sealing ring (11) are communicated with a water guide pipe (15), and one end of the water guide pipe (15) is communicated with the water outlet tube (12); The outer periphery of the water inlet pipe (4) is sleeved and fixedly installed with a reinforcing ring (16), and the reinforcing ring (16) is arranged between the cover (3) and the water guide pipe (15); The outer periphery of the water inlet pipe (4) is sleeved with a first sealing gasket (17), the outer periphery of the first sealing gasket (17) is in sliding contact with the inner surface of the spray pipe (2), and the top and bottom of the first sealing gasket (17) are in contact with the opposite sides of the cover (3) and the reinforcing ring (16) respectively; The top of the outer periphery of the water inlet pipe (4) is threadedly connected with a positioning nut (18), the outer periphery of the water inlet pipe (4) is sleeved with a second sealing gasket (19), and the top and bottom of the second sealing gasket (19) are in contact with the opposite sides of the positioning nut (18) and the cover (3) respectively; The bottom of the blocking ring (5) is fixedly installed with a plurality of blocking rods (20), and the bottom of the upper flushing groove (10) is provided with a plurality of through holes (21) matched with the blocking rods (20); The outer periphery of the blocking rod (20) is sleeved and fixedly installed with a cover ring (22), and the bottom of the cover ring (22) is in contact with the bottom of the inner cavity of the upper flushing groove (10); The top of the water inlet pipe (4) is communicated and fixedly installed with a threaded pipe (23); Specifically includes the following steps: Step one, assembly: the sealing ring (5) and the butt joint pipe (6) are placed in the nozzle (2), the sealing rod (20) is inserted into the through hole (21), the sealing ring (11) and the sealing sleeve (13) are sleeved on the water inlet pipe (4), the sealing spring (7) is placed on the outer periphery of the butt joint pipe (6), the water inlet pipe (4) is inserted into the nozzle (2) and the butt joint pipe (6), the first sealing gasket (17) is sleeved on the water inlet pipe (4), the cover (3) is sleeved on the water inlet pipe (4), the bolts are tightened, the cover (3) and the nozzle (2) are fixed, the second sealing gasket (19) is sleeved on the water inlet pipe (4), the fastening nut is tightened, the assembly of the pile washing nozzle (1) is completed, and the water inlet pipe (4) is connected with the external washing pipeline through the threaded pipe (23) to complete the assembly; Step two, pressure regulation: when the sealing spring (7) needs to be adjusted to apply pressure to the sealing ring (5), the external washing pipeline starts to inject water, the water enters the water inlet pipe (4) through the threaded pipe (23), and the electromagnetic control valve (14) is opened, the water in the water inlet pipe (4) flows into the sealing ring (11) through the water guide pipe (15) and the water outlet pipe (12), as the water above the sealing ring (11) increases, the sealing ring (11) drives the sealing sleeve (13) to move downward along the water inlet pipe (4), and the sealing spring (7) is extruded, and then the electromagnetic control valve (14) is closed; Step three, anti-blocking: when the pile washing nozzle (1) is not used, the sealing spring (7) pushes the sealing ring (5) to tightly contact the inner cavity bottom of the nozzle (2), and the inclined outlet (9) is blocked, at this time, the cover ring (22) tightly contacts the inner cavity bottom of the upper washing groove (10), and the through hole (21) is blocked; Step four, washing: when the pile washing operation starts, the external water pump starts to inject water into the water inlet pipe (4) through the external washing pipeline, the water with pressure flows into the upper washing groove (10), extrudes the sealing ring (5) to move upward, and the inclined outlet (9) leaks out, the water starts to spray from the inclined outlet (9), and the sealing ring (5) moves upward during the movement, drives the sealing rod (20) to move upward, leaks out of the through hole (21), and part of the water sprays from the through hole (21) to perform the pile washing operation.

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