Automatic opening and closing valve for high-pressure pile washing of self-elevating ocean platform

Abstract

The utility model discloses an automatic opening and closing valve for high-pressure pile washing of a self-elevating ocean platform, and relates to the technical field of ocean engineering equipment. According to the self-elevating ocean platform high-pressure pile washing automatic opening and closing valve and method, through the arrangement of a threaded guide rod, a reset spring, a plunger and a stepped blind hole, when pressure water is not introduced, the reset spring pushes the plunger to move, a water outlet hole is blocked, the situation that the valve body is blocked by sludge is avoided, a water guide channel and a cavity are formed under the arrangement of an L-shaped limiting part and an assembling groove, and the valve body is opened and closed. After pressure water is introduced, the pressure water extrudes the plunger through the water guide channel and the cavity, the reset spring is compressed, communication of the water guide hole, the water inlet hole and the water outlet hole is achieved, flowing out of the pressure water is facilitated, the purpose of automatically opening the valve body is achieved, and when the pressure water is not injected any more, the reset spring is reset, and automatic closing of the valve body is achieved. And the problem that the pile shoe end washing pile pipe is easily blocked by sludge is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of marine engineering equipment, in particular to an automatic opening and closing valve for high-pressure pile punching of a self-elevating marine platform. Background Art

[0002] During the operation of the wind power installation platform, it is necessary to move to the next wind turbine installation location after completing the installation of one wind turbine to install the next wind turbine. When moving the platform, there is an action of pulling out the pile legs. When pulling out the piles, it is necessary to start the high-pressure pile punching system to punch the piles.

[0003] In the past, the high-pressure pile driving pipe system on the pile leg was open at the pile shoe end, which was easily blocked by silt. After a period of time, the silt hardened and affected the pile driving effect and increased the pile pulling time. Based on this, an automatic opening and closing valve for high-pressure pile driving on a self-elevating offshore platform is proposed. When pressurized water is introduced, the valve body is automatically opened. When pressurized water is not introduced, the valve body is automatically closed to avoid silt blockage. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an automatic opening and closing valve for high-pressure pile driving on a self-elevating offshore platform, which solves the problem that the open pipe design at the pile shoe end is easily blocked by silt, and the silt hardens after a period of time, affecting the pile driving effect and increasing the pile extraction time.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a self-elevating offshore platform high-pressure pile-driving automatic opening and closing valve, comprising a pile-driving pipe arranged on a pile shoe, one end of the pile-driving pipe is connected to a valve body, the valve body comprises a valve cover and a mounting shell, the valve cover and the mounting shell are fixedly connected by assembly bolts, a stepped blind hole is provided on one side of the valve cover, a water outlet is provided on one side of the stepped blind hole, a pressure relief flat groove and an assembly groove are provided on one side of the mounting shell, and an L-shaped valve cap is fixedly connected to the mounting shell by fastening bolts. Limit, a threaded guide rod is fixedly connected to the bottom of the inner cavity of the stepped blind hole, a return spring is sleeved on the outer periphery of the threaded guide rod, and a plunger is sleeved and slidably installed on the top of the threaded guide rod, a water inlet hole connected to the assembly groove is opened on one side of the mounting shell, and a water guide hole matched with the water inlet hole and the water outlet is opened on the surface of the plunger, a water guide channel connected to the stepped blind hole is reserved between the L-shaped limit and the assembly groove, the plunger is slidably installed between the stepped blind hole and the L-shaped limit, and a cavity connected to the water guide channel is reserved on the top of the plunger.

[0008] The utility model is further configured as follows: a turbofan groove is provided on the surface of the water outlet.

[0009] The utility model is further configured as follows: annular grooves are provided on the outer periphery of the plunger and on both upper and lower sides of the water guide hole, and a sealing ring is sleeved inside the annular groove.

[0010] The utility model is further configured as follows: an adjusting nut is sleeved and threadedly mounted on the outer surface of the threaded guide rod, and the bottom end of the return spring contacts the top of the adjusting nut.

[0011] The utility model is further configured as follows: a movable blind hole adapted to the threaded guide rod is provided at the bottom of the plunger.

[0012] The utility model is further configured as follows: a sealing frame is integrally formed on one side of the valve cover, and a sealing groove matched with the sealing frame is opened on the outer periphery of one side of the mounting shell.

[0013] The utility model is further configured as follows: a stepped mounting hole connected to the assembly groove is opened on the front side of the mounting shell, a positioning hole is opened on the back side of the inner cavity of the assembly groove, a through hole is opened on the front side of the L-shaped limiter, and the through hole, the stepped mounting hole and the positioning hole are all used in conjunction with fastening bolts.

[0014] The utility model is further configured as follows: a plurality of docking blind holes are opened on one side of the installation shell, a stepped assembly hole is opened on the other side of the valve cover, and both the docking blind holes and the stepped assembly holes are used in conjunction with assembly bolts.

[0015] The utility model is further configured as follows: an assembly pipe connected to the pile punching pipe is integrally formed on the other side of the installation shell, and the assembly pipe is connected to the water inlet hole.

[0016] It should be noted that in the present technical solution, the valve body is completed by left-right assembly of the valve cover 3 and the mounting shell 5. Preferably, we can also adopt upper and lower assembly. When assembling the upper and lower parts, only one alignment with the center hole is required to complete the assembly. Specifically, the mounting shell 5 is installed first, then the reset spring 14, then the plunger 15, and finally the valve cover 4 is installed to complete the assembly of the valve body.

[0017] The utility model also discloses a method for using a high-pressure pile-punching automatic opening and closing valve for a self-elevating offshore platform, which specifically comprises the following steps:

[0018] Step 1: Place the L-type limit in the assembly groove, tighten the fastening bolts, and make the fastening bolts pass through the stepped installation hole, the through hole and the positioning hole in sequence. After completing the installation of the L-type limit, put the reset spring on the threaded guide rod, then put the plunger on the threaded guide rod, and then close the valve cover on the installation shell. After the sealing frame is put on the sealing groove, tighten the assembly bolts, so that the assembly bolts pass through the stepped assembly hole and the docking blind hole in sequence to complete the valve body assembly;

[0019] Step 2: connect the assembly pipe on the valve body to the pile punching pipe on the pile shoe;

[0020] Step 3: During the pile punching operation, the pressure water enters the assembly pipe through the pile punching pipe, enters the assembly groove through the water inlet hole, the plunger blocks the water outlet hole, and part of the pressure water flows into the cavity through the water guide channel, and a pressure perpendicular to the direction of the return spring is applied to the plunger to move the plunger and squeeze the return spring. During the movement of the plunger, the water guide hole begins to communicate with the water outlet hole and the water inlet hole, and the pressure water sprays out from the water outlet hole;

[0021] Step 4: When the pile punching operation is not being carried out, the reset spring pushes the plunger to reset so that the plunger continues to block the water outlet.

[0022] (III) Beneficial effects

[0023] The utility model provides a self-elevating offshore platform high pressure pile driving automatic opening and closing valve.

[0024] Beneficial effects:

[0025] (1) The utility model is provided with a threaded guide rod, a return spring, a plunger and a stepped blind hole. When pressurized water is not introduced, the return spring pushes the plunger to move and seal the water outlet hole to prevent silt from clogging the valve body. Under the setting of the L-shaped limit and assembly groove, a water guide channel and a cavity are formed. After the pressurized water is introduced, the pressurized water squeezes the plunger through the water guide channel and the cavity, compressing the return spring, thereby achieving the connection between the water guide hole, the water inlet hole and the water outlet hole, facilitating the outflow of pressurized water and achieving the purpose of automatic opening of the valve body. When pressurized water is no longer injected, the return spring is reset to achieve automatic closing of the valve body, effectively solving the problem that the pile pipe at the end of the pile shoe is easily clogged by silt.

[0026] (2) The utility model adjusts the elastic force of the reset spring by setting the pressure relief groove and the adjusting nut and rotating the adjusting nut. When the reset spring weakens due to long-term use, the plunger can be effectively blocked on the water outlet by simply adjusting the adjusting nut, thereby increasing the effective service life of the reset spring and providing convenient protection for the long-term use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the assembly of the structure of the utility model;

[0028] Figure 2 For this utility model Figure 1 A magnified schematic diagram of the structure at center A;

[0029] Figure 3 This is a schematic diagram of the external structure of the valve body of the utility model;

[0030] Figure 4 This is a schematic diagram of the disassembly of the valve body structure of the utility model;

[0031] Figure 5 This is a schematic diagram of the connection between the installation shell, the fastening bolts and the L-shaped limiting structure of the utility model;

[0032] Figure 6 It is a side view of the plunger of the utility model;

[0033] In the figure, 1, pile shoe; 2, pile punching pipe; 3, valve body; 4, valve cover; 5, mounting shell; 6, assembly bolt; 7, stepped blind hole; 8, water outlet hole; 9, pressure relief flat groove; 10, assembly groove; 11, fastening bolt; 12, L-type limit; 13, threaded guide rod; 14, reset spring; 15, plunger; 16, water inlet hole; 17, water guide hole; 18, water guide channel; 19, cavity; 20, turbofan groove; 21, circumferential groove; 22, sealing ring; 23, adjusting nut; 24, movable blind hole; 25, sealing frame; 26, sealing groove; 27, stepped mounting hole; 28, positioning hole; 29, through hole; 30, docking blind hole; 31, stepped assembly hole; 32, assembly pipe. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0035] See also Figure 1-6 , the utility model embodiment provides the following two technical solutions:

[0036] Embodiment 1

[0037] A self-elevating offshore platform high-pressure pile driving automatic opening and closing valve comprises a pile driving pipe 2 arranged on a pile shoe 1, one end of the pile driving pipe 2 is connected to a valve body 3.

[0038] As a preferred solution, in order to facilitate the assembly and production of the valve body 3, the valve body 3 includes a valve cover 4 and a mounting shell 5, and the valve cover 4 and the mounting shell 5 are fixedly connected by assembly bolts 6. Specifically, a plurality of docking blind holes 30 are opened on one side of the mounting shell 5, and a stepped assembly hole 31 is opened on the other side of the valve cover 4, and both the docking blind holes 30 and the stepped assembly holes 31 are used in conjunction with the assembly bolts 6.

[0039] Furthermore, in order to improve the sealing effect of the valve body 3 after assembly, a sealing frame 25 is integrally formed on one side of the valve cover 4 , and a sealing groove 26 matched with the sealing frame 25 is formed on the outer periphery of one side of the mounting shell 5 .

[0040] As a preferred solution, in order to realize automatic opening and closing control of the valve body 3, a stepped blind hole 7 is provided on one side of the valve cover 4, a water outlet 8 is provided on one side of the stepped blind hole 7, a pressure relief flat groove 9 and an assembly groove 10 are provided on one side of the mounting shell 5, and the interior of the assembly groove 10 is fixedly connected with an L-shaped limit 12 by a fastening bolt 11, a threaded guide rod 13 is fixedly connected to the bottom of the inner cavity of the stepped blind hole 7, a reset spring 14 is sleeved on the outer periphery of the threaded guide rod 13, and a plunger 15 is sleeved and slidably installed on the top of the threaded guide rod 13, and a movable blind hole 24 adapted to the threaded guide rod 13 is provided at the bottom of the plunger 15, and the mounting shell 5 A water inlet hole 16 connected to the assembly groove 10 is provided on one side of the plunger 15, a water guide hole 17 matched with the water inlet hole 16 and the water outlet hole 8 is provided on the surface of the plunger 15, a water guide channel 18 connected to the stepped blind hole 7 is reserved between the L-shaped limit 12 and the assembly groove 10, the plunger 15 is slidably installed between the stepped blind hole 7 and the L-shaped limit 12, and a cavity 19 connected to the water guide channel 18 is reserved on the top of the plunger 15. In order to ensure the sealing effect of the valve body 3, an annular groove 21 is provided on the outer periphery of the plunger 15 and on the upper and lower sides of the water guide hole 17, and a sealing ring 22 is sleeved inside the annular groove 21.

[0041] Furthermore, in order to facilitate the installation of the L-shaped limiter 12, a stepped mounting hole 27 connected to the assembly groove 10 is opened on the front side of the mounting shell 5, a positioning hole 28 is opened on the back of the inner cavity of the assembly groove 10, and a through hole 29 is opened on the front side of the L-shaped limiter 12, and the through hole 29, the stepped mounting hole 27 and the positioning hole 28 are all used in conjunction with the fastening bolts 11.

[0042] As a preferred solution, an assembly pipe 32 communicating with the pile driving pipe 2 is integrally formed on the other side of the installation shell 5 , and the assembly pipe 32 is communicated with the water inlet hole 16 .

[0043] As a preferred solution, in order to accelerate the speed of water jetting out of the valve body 3, a turbofan groove 20 is opened on the surface of the water outlet 8.

[0044] In this embodiment, after the pressurized water is introduced, the plunger 15 can be squeezed to realize the automatic opening of the valve body 3. When the pressurized water is not introduced, the plunger 15 is pushed by the return spring 14 to realize the blocking of the water outlet 8, thereby achieving the effect of automatic closing of the valve body 3, and effectively isolating the silt outside the valve body 3.

[0045] Embodiment 2

[0046] This embodiment is an improvement of the previous embodiment, a self-elevating offshore platform high-pressure pile driving automatic opening and closing valve, and also includes an adjusting nut 23 sleeved and threadedly installed on the outer surface of the threaded guide rod 13, and the bottom end of the reset spring 14 is in contact with the top of the adjusting nut 23.

[0047] The advantage of the second embodiment over the first embodiment is that the height of the return spring 14 can be adjusted, thereby extending the effective service life of the return spring 14 .

[0048] A method for using an automatic opening and closing valve for high-pressure pile driving on a self-elevating offshore platform, specifically comprising the following steps:

[0049] Step 1: Place the L-shaped limiter 12 in the assembly groove 10, tighten the fastening bolt 11, and make the fastening bolt 11 pass through the stepped mounting hole 27, the through hole 29 and the positioning hole 28 in sequence. After completing the installation of the L-shaped limiter 12, sleeve the return spring 14 on the threaded guide rod 13, and then sleeve the plunger 15 on the threaded guide rod 13. Then, close the valve cover 4 on the mounting shell 5, and after the sealing frame 25 is sleeved on the sealing groove 26, tighten the assembly bolt 6, and make the assembly bolt 6 pass through the stepped assembly hole 31 and the docking blind hole 30 in sequence to complete the assembly of the valve body 3.

[0050] Step 2: connect the assembly pipe 32 on the valve body 3 with the pile punching pipe 2 on the pile shoe 1;

[0051] Step 3: When performing pile punching operation, the pressurized water enters the assembly pipe 32 through the pile punching pipe 2, and enters the assembly groove 10 through the water inlet hole 16. The plunger 15 blocks the water outlet hole 8, and part of the pressurized water flows into the cavity 19 through the water guide channel 18. A pressure perpendicular to the direction of the return spring 14 is applied to the plunger 15 to move the plunger 15 and squeeze the return spring 14. During the movement of the plunger 15, the water guide hole 17 begins to communicate with the water outlet hole 8 and the water inlet hole 16, and the pressurized water is sprayed out from the water outlet hole 8;

[0052] Step 4: When the pile punching operation is not performed, the reset spring 14 pushes the plunger 15 to reset, so that the plunger 15 continues to block the water outlet 8;

[0053] Step 5. The elasticity of the reset spring 14 weakens. When pressurized water is not introduced, it cannot effectively push the plunger 15 to reset. That is, when pressurized water is not introduced, the water guide hole 17 is still connected to the water outlet hole 8. At this time, the external silt cannot be effectively isolated. As long as the adjusting nut 23 is rotated and driven through the pressure relief flat groove 9 to make the adjusting nut 23 rise, the reset spring 14 is squeezed, and the water guide hole 17 is separated from the water outlet hole 8 and it can be put into use again.

[0054] As a detection description, after adjusting the adjusting nut 23 in step five, it is necessary to ensure that after the pressurized water is introduced, the water guide hole 17 can be effectively connected with the water outlet hole 8. If the two are not connected after the pressurized water is introduced, a new reset spring 14 needs to be replaced.

Claims

1. A high-pressure pile-driving automatic opening and closing valve for a self-elevating offshore platform, comprising a pile-driving pipe (2) arranged on a pile shoe (1), characterized in that: One end of the pile driving pipe (2) is connected to a valve body (3), the valve body (3) comprises a valve cover (4) and a mounting shell (5), the valve cover (4) and the mounting shell (5) are fixedly connected by means of an assembly bolt (6), a stepped blind hole (7) is provided on one side of the valve cover (4), a water outlet hole (8) is provided on one side of the stepped blind hole (7), a pressure relief flat groove (9) and an assembly groove (10) are provided on one side of the mounting shell (5), and an L-shaped limiter (12) is fixedly connected to the interior of the assembly groove (10) by means of a fastening bolt (11), a threaded guide rod (13) is fixedly connected to the bottom of the inner cavity of the stepped blind hole (7), and the outer periphery of the threaded guide rod (13) is sleeved A return spring (14) is provided, and a plunger (15) is sleeved and slidably mounted on the top of the threaded guide rod (13); a water inlet hole (16) communicating with the assembly groove (10) is provided on one side of the installation shell (5); a water guide hole (17) matching the water inlet hole (16) and the water outlet hole (8) is provided on the surface of the plunger (15); a water guide channel (18) communicating with the stepped blind hole (7) is reserved between the L-shaped limiter (12) and the assembly groove (10); the plunger (15) is slidably mounted between the stepped blind hole (7) and the L-shaped limiter (12), and a cavity (19) communicating with the water guide channel (18) is reserved on the top of the plunger (15).

2. The automatic opening and closing valve for high pressure pile driving of a self-elevating offshore platform according to claim 1 is characterized by: A turbofan groove (20) is provided on the surface of the water outlet hole (8).

3. The automatic opening and closing valve for high pressure pile driving of a self-elevating offshore platform according to claim 1 is characterized by: Circumferential grooves (21) are provided on the outer periphery of the plunger (15) and on both upper and lower sides of the water guide hole (17), and a sealing ring (22) is sleeved inside the circumferential groove (21).

4. The automatic opening and closing valve for high pressure pile driving of a self-elevating offshore platform according to claim 1 is characterized by: An adjusting nut (23) is sleeved and threadedly mounted on the outer surface of the threaded guide rod (13), and the bottom end of the return spring (14) is in contact with the top of the adjusting nut (23).

5. The automatic opening and closing valve for high pressure pile driving of a self-elevating offshore platform according to claim 1 is characterized by: The bottom of the plunger (15) is provided with a movable blind hole (24) adapted to the threaded guide rod (13).

6. The automatic opening and closing valve for high pressure pile driving of a self-elevating offshore platform according to claim 1 is characterized by: A sealing frame (25) is integrally formed on one side of the valve cover (4), and a sealing groove (26) matching the sealing frame (25) is provided on the outer periphery of one side of the mounting shell (5).

7. The automatic opening and closing valve for high pressure pile driving of a self-elevating offshore platform according to claim 1 is characterized by: The front of the mounting shell (5) is provided with a stepped mounting hole (27) which is in communication with the mounting groove (10); the back of the inner cavity of the mounting groove (10) is provided with a positioning hole (28); the front of the L-shaped limiter (12) is provided with a through hole (29); and the through hole (29), the stepped mounting hole (27) and the positioning hole (28) are all used in conjunction with the fastening bolt (11).

8. The automatic opening and closing valve for high pressure pile driving of a self-elevating offshore platform according to claim 1 is characterized by: A plurality of docking blind holes (30) are provided on one side of the mounting shell (5), and a stepped assembly hole (31) is provided on the other side of the valve cover (4), and both the docking blind holes (30) and the stepped assembly holes (31) are used in conjunction with assembly bolts (6).

9. The automatic opening and closing valve for high pressure pile driving of a self-elevating offshore platform according to claim 1 is characterized by: An assembly pipe (32) connected to the pile driving pipe (2) is integrally formed on the other side of the installation shell (5), and the assembly pipe (32) is connected to the water inlet hole (16).

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