Quick drain valve of deepwater suction pile

Abstract

The rapid drainage valve of the deepwater suction pile comprises a sleeve and a valve end cover, the valve end cover abuts against the sleeve, the side wall of the sleeve is connected with a supporting assembly, the supporting assembly is connected with the valve end cover through a driving assembly, and the end, away from the valve end cover, of the sleeve is arranged on the suction pile; and the driving assembly is rotated to separate the valve end cover from the sleeve, so that water and air in the suction pile are discharged along a discharge port between the valve end cover and the sleeve. According to the rapid drainage valve of the deepwater suction pile, the suction pile is connected with the sleeve, the sleeve is connected with the driving assembly through the supporting assembly, the driving assembly drives the valve end cover to be away from the sleeve, and drainage and exhaust of the drainage valve are achieved; after the suction pile enters the mud in place, the valve end cover is driven to abut against the sleeve, and the drainage valve is closed. The influence of underwater silt or foreign matter in the piling process is small, and the exhaust and drainage problems in the water entering process of the suction pile can be rapidly solved.

Description

Technical Field

[0001] The invention belongs to the technical field of marine petroleum engineering, and in particular relates to a quick drainage valve for a deep-water suction pile. Background Art

[0002] With the continuous development of offshore oil engineering and the deepening of deep-sea oil and gas resource exploitation, suction piles, as a form of deep-water foundation structure, have the advantages of accurate positioning, simple recovery, reusability, ability to withstand large lateral forces and torques, and short installation time. Therefore, they have gradually been widely used; deep-water multi-tube suction piles have gradually been widely used, but they are required to have good exhaust and drainage performance during the water entry process.

[0003] In the past, suction pumps were mostly installed underwater, relying on the suction of the underwater pumps to discharge the water and air inside the suction piles. However, due to the influence of a large amount of sand or foreign matter during the piling process, underwater pumps frequently had accidents, which to some extent affected the application of deep-water suction piles.

[0004] Therefore, it is urgent to design a quick drainage valve for deep water suction piles to solve the above-mentioned problems. Summary of the Invention

[0005] In order to solve the technical problem mentioned in the background technology that a large amount of sand or foreign matter is affected during the piling process, resulting in frequent accidents of underwater pumps and affecting the application of deep-water suction piles, a quick drain valve for deep-water suction piles is provided to solve the problem of discharging water and air inside the suction pile.

[0006] To achieve the above objectives, the specific technical solutions of the quick drain valve for deep water suction piles of the present invention are as follows: A quick drainage valve for a deep-water suction pile comprises a sleeve and a valve end cover, the valve end cover abuts against the sleeve, a support assembly is connected to the side wall of the sleeve, the support assembly is connected to the valve end cover via a drive assembly, and the end of the sleeve away from the valve end cover is arranged on the suction pile; the drive assembly is rotated to separate the valve end cover from the sleeve, so that water and gas in the suction pile are discharged along the discharge port between the valve end cover and the sleeve.

[0007] Furthermore, the driving assembly includes a screw and a screw nut, the screw nut is threaded with a screw, and the screw is connected to an operating handle. The operating handle is rotated to change the screw connection position of the screw.

[0008] Furthermore, the valve end cover is connected to a bottom stopper, an upper stopper is provided on the bottom stopper, and the end of the screw rod away from the operating handle is provided between the upper stopper and the bottom stopper. The operating handle is rotated to allow the screw rod to drive the valve end cover connected to the bottom stopper away from or close to the sleeve.

[0009] Furthermore, a countersunk bolt is screwed between the upper stopper and the bottom stopper to fix the upper stopper and the bottom stopper.

[0010] Furthermore, a protrusion is provided at one end of the screw rod away from the operating handle, an upper bushing is provided between the protrusion and the upper stopper, and a bottom bushing is provided between the protrusion and the bottom stopper.

[0011] Furthermore, the support assembly includes a support plate and a connecting plate, one end of the connecting plate is connected to the support plate, and one end of the connecting plate away from the support plate is connected to a screw nut.

[0012] Furthermore, the support plate is cylindrical, and four connecting plates are vertically connected to the inner wall of the support plate. The angles between adjacent connecting plates are all 90 degrees, and the ends of the four connecting plates away from the support plate are all connected to the screw nuts.

[0013] Furthermore, the support assembly also includes a ring plate, which is connected to the side wall of the sleeve, and a support plate is connected to the ring plate so that the screw nut is arranged above the upper stopper.

[0014] Furthermore, a groove structure matching the protruding structure of the valve end cover is provided at one end of the sleeve away from the suction pile, so as to seal between the sleeve and the valve end cover.

[0015] Furthermore, a sealing ring is provided in the groove structure.

[0016] The quick drain valve for deep water suction piles of the present invention has the following advantages: By connecting a sleeve to the suction pile and connecting a drive assembly to the sleeve via a support assembly, the drive assembly drives the valve end cover away from the sleeve to achieve drainage and exhaust of the drain valve; after the suction pile is put into the mud and into place, the valve end cover is driven to abut against the sleeve to close the drain valve. The present invention has a simple structure and is less affected by underwater mud or foreign matter during the piling process. It is suitable for underwater environments and can quickly and efficiently solve the exhaust and drainage problems during the suction pile driving process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the quick drain valve of the deep-water suction pile of the present invention; Figure 2 Schematic diagram of the cooperation between the quick drain valve sleeve and the valve end cover of the deep water suction pile of the present invention; Figure 3 This is a schematic diagram of the connection between the bottom block and the upper block of the quick drainage valve of the deep water suction pile of the present invention.

[0018] Description of the marks in the figure: 1. Sleeve; 2. Valve end cover; 3. Screw; 4. Screw nut; 5. Operating handle; 6. Bottom stopper; 7. Upper stopper; 8. Countersunk bolt; 9. Upper bushing; 10. Bottom bushing; 11. Support plate; 12. Connecting plate; 13. Ring plate; 14. Sealing ring. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] Those skilled in the art will appreciate that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is intended to be within the scope of the present invention and to form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0021] Please refer to the attached Figure 1 To the attached Figure 3 The quick drain valve of the deep water suction pile of the present invention is described.

[0022] like Figure 1 As shown, the quick drainage valve of the deep-water suction pile in the present invention includes a sleeve 1 and a valve end cover 2. The valve end cover 2 abuts against the sleeve 1. A support assembly is connected to the side wall of the sleeve 1. The support assembly is connected to the valve end cover 2 through a drive assembly. The end of the sleeve 1 away from the valve end cover 2 is arranged on the suction pile; the drive assembly is rotated to separate the valve end cover 2 from the sleeve 1, so that the water and gas in the suction pile are discharged along the discharge port between the valve end cover 2 and the sleeve 1.

[0023] By connecting a sleeve 1 to the suction pile and connecting a drive assembly to the sleeve 1 via a support assembly, the drive assembly drives the valve end cover 2 away from the sleeve 1 to achieve drainage and exhaust of the drain valve; after the suction pile is put into the mud and into place, the valve end cover 2 is driven to abut against the sleeve 1 to close the drain valve. The present invention has a simple structure and is less affected by underwater mud or foreign matter during the piling process. It is suitable for underwater environments and can quickly and efficiently solve the exhaust and drainage problems during the suction pile entry process.

[0024] Further, if Figure 1 and Figure 3As shown, the drive assembly includes a screw rod 3 and a screw rod nut 4, the screw rod 3 is screwed on the screw rod nut 4, and the screw rod 3 is connected to an operating handle 5. The operating handle 5 is rotated to change the screw connection position of the screw rod 3; the valve end cover 2 is connected to a bottom stopper 6, and an upper stopper 7 is provided on the bottom stopper 6. The end of the screw rod 3 away from the operating handle 5 is arranged between the upper stopper 7 and the bottom stopper 6. The operating handle 5 is rotated to make the screw rod 3 drive the valve end cover 2 connected to the bottom stopper 6 away from or close to the sleeve 1.

[0025] A countersunk bolt 8 is screwed between the upper stop block 7 and the bottom stop block 6 to fix the upper stop block 7 and the bottom stop block 6; a protrusion is provided at the end of the screw rod 3 away from the operating handle 5, an upper shaft liner 9 is provided between the protrusion and the upper stop block 7, and a bottom shaft liner 10 is provided between the protrusion and the bottom stop block 6.

[0026] In this embodiment, preferably, the screw rod 3 is rotatably connected to the screw rod nut 4, and an operating handle 5 is fixedly connected to the end of the screw rod 3 away from the screw rod nut 4. The operating handle 5 is rotated to move the screw rod 3 in the vertical direction, thereby moving the valve end cover 2 closer to or away from the sleeve 1.

[0027] A bottom stopper 6 is welded at the center position of the valve end cover 2, and an upper stopper 7 is abutted against the bottom stopper 6. Preferably, a protrusion is provided at the end of the screw rod 3 away from the operating handle 5, and the shape of the protrusion is consistent with the shape of the gap between the bottom stopper 6 and the upper stopper 7, so that the screw rod 3 drives the valve end cover 2 connected to the bottom stopper 6 to move up and down.

[0028] Preferably, corresponding screw holes are provided on the upper stop block 7 and the bottom stop block 6, so that the upper stop block 7 and the bottom stop block 6 are fixedly connected by countersunk bolts 8; and an upper shaft liner 9 is provided between the protruding portion of the screw rod 3 and the upper stop block 7, and a bottom shaft liner 10 is provided between the protruding portion of the screw rod 3 and the upper shaft liner 9 and the lower shaft liner 10, so that there is no gap between the protruding portion of the screw rod 3 and the upper shaft liner 9 and the lower shaft liner 10, thereby making the moving distance of the valve end cover 2 consistent with the moving distance of the screw rod 3.

[0029] Further, if Figure 1 As shown, the support assembly includes a support plate 11 and a connecting plate 12, one end of the connecting plate 12 is connected to the support plate 11, and the end of the connecting plate 12 away from the support plate 11 is connected to the screw nut 4; the support plate 11 is cylindrical, and four connecting plates 12 are vertically connected to the inner wall of the support plate 11, and the angles between adjacent connecting plates 12 are all 90 degrees, and the ends of the four connecting plates away from the support plate 11 are all connected to the screw nut 4; the support assembly also includes a ring plate 13, the ring plate 13 is connected to the side wall of the sleeve 1, and the support plate 11 is connected to the ring plate 13, so that the screw nut 4 is set above the upper stopper 7.

[0030] In this embodiment, in order to fix the screw nut 4 vertically above the valve end cover 2, it is preferred to fix the screw nut 4 by vertically welding four connecting plates 12 on the side walls of the screw nut 4 and ensuring that the angles between adjacent connecting plates 12 are 90 degrees.

[0031] Multiple connecting plates 12 are welded to the inner wall of the support plate 11 at one end away from the screw nut 4, and the support plate 11 is welded to the ring plate 13 at one end away from the connecting plate 12. The ring plate 13 is welded to the outer wall of the sleeve 1, and then the screw nut 4 is fixed just above the center position of the valve end cover 2, so that the screw 3 moves the valve end cover 2 in the vertical direction.

[0032] Further, if Figure 1 and Figure 2 As shown, a groove structure matching the protruding structure of the valve end cover 2 is provided at one end of the sleeve 1 away from the suction pile, so as to seal between the sleeve 1 and the valve end cover 2; a sealing ring 14 is provided in the groove structure.

[0033] In this embodiment, preferably, a groove structure having the same shape and size as the protruding structure of the valve end cover 2 is provided on the sleeve 1, and a sealing ring 14 is provided in the groove structure so that when the valve end cover 2 abuts against the sleeve 1, the valve end cover 2 and the sleeve 1 are sealed.

[0034] The working steps of the quick drain valve of the deep water suction pile in this application are as follows: First, connect the sleeve 1 to the end of the suction pile away from the mud entry port, and place it into the deep water piling position along with the suction pile; Then, when the suction pile needs to be drained or exhausted, the underwater robot rotates the operating handle 5 to separate the valve end cover 2 from the sleeve 1, so that the water and air in the suction pile are discharged from the gap between the valve end cover 2 and the sleeve 1; Finally, when the suction pile is fully seated in the mud, the screw rod 3 is reversed, and the valve end cover 2 abuts against the sleeve 1 to achieve sealing.

[0035] The quick drain valve based on deep-water suction piles can avoid or reduce the use of underwater pumps, thereby avoiding or reducing the extension of offshore construction period caused by frequent underwater pump accidents, saving offshore construction time and saving the high cost of offshore construction.

[0036] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A quick drain valve for deep water suction piles, characterized in that: It includes a sleeve and a valve end cover, the valve end cover abuts against the sleeve, a support assembly is connected to the side wall of the sleeve, the support assembly is connected to the valve end cover through a drive assembly, and the end of the sleeve away from the valve end cover is set on a suction pile; Rotate the driving assembly to separate the valve end cover from the sleeve, so that the water and gas in the suction pile are discharged along the discharge port between the valve end cover and the sleeve.

2. The rapid drainage valve for deep water suction piles according to claim 1, characterized in that: The driving assembly includes a screw and a screw nut. The screw nut is screwed with a screw, and an operating handle is connected to the screw. The operating handle is rotated to change the screw connection position of the screw.

3. The rapid drainage valve for deep water suction piles according to claim 1, characterized in that: The valve end cover is connected to a bottom stopper, an upper stopper is provided on the bottom stopper, and the end of the screw rod away from the operating handle is provided between the upper stopper and the bottom stopper. The operating handle is rotated to make the screw rod drive the valve end cover connected to the bottom stopper away from or close to the sleeve.

4. The rapid drainage valve for deep water suction piles according to claim 3, characterized in that: A countersunk bolt is screwed between the upper stopper and the bottom stopper to fix the upper stopper and the bottom stopper.

5. The rapid drainage valve for deep water suction piles according to claim 3, characterized in that: A protruding portion is provided at one end of the screw rod away from the operating handle, an upper shaft bushing is provided between the protruding portion and the upper stopper, and a bottom shaft bushing is provided between the protruding portion and the bottom stopper.

6. The rapid drainage valve for deep water suction piles according to claim 1, characterized in that: The supporting assembly comprises a supporting plate and a connecting plate, one end of the connecting plate is connected to the supporting plate, and one end of the connecting plate away from the supporting plate is connected to a screw nut.

7. The rapid drainage valve for deep water suction piles according to claim 6, characterized in that: The support plate is cylindrical, and four connecting plates are vertically connected to the inner wall of the support plate. The angles between adjacent connecting plates are all 90 degrees, and the ends of the four connecting plates away from the support plate are all connected to the screw nuts.

8. The rapid drainage valve for deep water suction piles according to claim 6, characterized in that: The support assembly also includes a ring plate connected to the side wall of the sleeve, and a support plate is connected to the ring plate so that the screw nut is arranged above the upper stopper.

9. The rapid drainage valve for deep water suction piles according to claim 1, characterized in that: A groove structure matching the protruding structure of the valve end cover is provided at one end of the sleeve away from the suction pile, so as to seal between the sleeve and the valve end cover.

10. The rapid drainage valve for deep water suction piles according to claim 9, characterized in that: A sealing ring is provided in the groove structure.

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