Marine riser with piling cap

Abstract

The utility model relates to the technical field of waterproof guide pipes, in particular to a marine waterproof guide pipe with a piling cap, which comprises a waterproof guide pipe main body, the waterproof guide pipe main body comprises a lower base, a guide pipe inner wall is mounted in the lower base, an upper base is mounted at the top end of the outer wall of the guide pipe inner wall, and fixing rods are mounted at the top end of the lower base. And the top end of the fixing rod is fixedly connected with the bottom end of the upper base, through holes are formed in the lower base, and a fixing screw rod is installed at the top end of the upper base. According to the utility model, the fixed sleeve main body and the fixed mounting ring are designed, and the fixed sleeve main body and the bottom end of the outer wall of the upper base are of an integrated welding structure, so that the fixed sleeve main body and the upper base are fixed more firmly; and therefore, the fixing sleeve main body and the fixing mounting ring are used for protecting the riser main body during piling, and the situation that the riser main body is damaged due to the fact that piling is directly conducted on the riser main body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water-blocking conduits, in particular to a water-blocking conduit with a pile driving cap used at sea. Background Art

[0002] The offshore oil drilling riser is a casing from the offshore drilling platform to the shallow seabed. Its main function is to isolate the seawater wellhead ballast, form a drilling fluid circulation channel, and serve as a wind-bearing structure for the offshore wellhead. During the drilling and completion process, the sea level strength and safety of the riser are crucial to the safety of offshore operations. The riser is generally driven or drilled into the seabed mud surface in the form of pile foundations. Therefore, when piling the riser, a pile cap is needed to protect the riser during piling.

[0003] At present, most of the water-blocking ducts on the market need to assemble the pile cap and the water-blocking duct before piling. This operation is time-consuming and labor-intensive. Therefore, a water-blocking duct with a pile cap is needed to meet people's usage needs. At the same time, the existing pile caps are not strong enough, which shortens the service life of the pile caps. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above or existing technologies, most of the water-blocking ducts on the market currently need to assemble the pile cap and the water-blocking duct before piling. This operation is time-consuming and labor-intensive. Therefore, a water-blocking duct with a pile cap is needed to meet people's usage needs. At the same time, the existing pile caps are less firm, which shortens the service life of the pile caps. Therefore, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a watertight pipe with a pile cap for use at sea.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a watertight pipe with a pile cap for use at sea, comprising a watertight pipe body, which comprises a lower base, the inner wall of the pipe is installed inside the lower base, and the top ends of the outer walls of the inner wall of the pipe are installed with an upper base, the top ends of the lower bases are all installed with fixing rods, and the top ends of the fixing rods are fixedly connected to the bottom ends of the upper bases, through holes are opened inside the lower bases, the top ends of the upper bases are installed with fixing screws, and the bottom ends of the outer walls of the upper bases are all installed with fixing bases;

[0008] The pile cap assembly comprises a fixed sleeve body, the fixed sleeve body is installed on the top of a fixed base, a fixed mounting ring is installed on the top of the fixed sleeve body, and the diameter of the fixed mounting ring is larger than the diameter of the fixed sleeve body.

[0009] As a preferred solution of the utility model for a water-blocking conduit with a pile cap at sea, the fixed sleeve body includes a steel base body, a firming layer is arranged on the top of the steel base body, and a first alloy steel is arranged on the top of the firming layer.

[0010] By adopting the above technical solution, the present solution uses the design of the first alloy steel to make the fixing sleeve body more solid.

[0011] As a preferred solution of the utility model for a water-blocking conduit with a pile cap at sea, the firming layer includes reinforcing ribs, and the reinforcing ribs are arranged in a transverse and vertical manner and staggered with each other and installed inside the firming layer.

[0012] By adopting the above technical solution, the reinforcing ribs of this solution are arranged in a horizontal and vertical staggered manner and installed inside the firm layer, so that the fixing sleeve body is more solid through the design of the reinforcing ribs.

[0013] As a preferred solution of the utility model for a water-blocking conduit with a pile cap at sea, the fixed installation ring includes a second alloy steel, a pressure-resistant layer is arranged on the top of the second alloy steel, and a third alloy steel is arranged on the top of the pressure-resistant layer.

[0014] By adopting the above technical solution and designing the second alloy steel and the third alloy steel, the fixing ring can be made more secure.

[0015] As a preferred solution of the utility model for a water-blocking conduit with a pile cap at sea, the pressure-resistant layer includes a first trapezoidal block and a second trapezoidal block, the first trapezoidal block is installed in a horizontal arrangement at the top end inside the pressure-resistant layer, the second trapezoidal block is installed in a horizontal arrangement at the bottom end inside the pressure-resistant layer, and the first trapezoidal block and the second trapezoidal block cooperate with each other.

[0016] By adopting the above technical solution, the first trapezoidal block and the second trapezoidal block cooperate with each other, so that the first trapezoidal block and the second trapezoidal block can provide a better anti-punching effect of the pressure-resistant layer.

[0017] As a preferred solution of the utility model for a watertight conductor with a pile cap used at sea, the materials of the first alloy steel, the second alloy steel and the third alloy steel are of the same structure.

[0018] By adopting the above technical solution, the first alloy steel, the second alloy steel and the third alloy steel are made of the same material, so that the fixed sleeve body and the fixed mounting ring are made stronger.

[0019] As a preferred solution of the utility model for a watertight conductor with a pile cap used at sea, the fixing screw rod and the through hole cooperate with each other, and the outer wall of the fixing screw rod is equipped with a fixing bolt.

[0020] By adopting the above technical solution, the outer wall of the fixing screw is equipped with fixing bolts, thereby facilitating the splicing and installation of the two sets of water-blocking duct bodies.

[0021] The utility model is a water-proof conduit with a pile driving cap for use at sea, which has the following beneficial effects:

[0022] The utility model firstly designs a fixed sleeve body and a fixed mounting ring, and welds the fixed sleeve body and the bottom end of the outer wall of the upper base into an integrated structure, thereby making the fixed sleeve body and the upper base more firmly fixed, so that the fixed sleeve body and the fixed mounting ring can protect the watertight duct body during piling, avoiding direct piling to the watertight duct body, which would cause damage to the watertight duct body.

[0023] The utility model firstly arranges reinforcing ribs in a transversely staggered manner inside the firming layer, and the reinforcing ribs are made of glass fiber, so that the reinforcing ribs can make the fixing sleeve body more firm. At the same time, the first trapezoidal block and the second trapezoidal block cooperate with each other, and the shapes of the first trapezoidal block and the second trapezoidal block are isosceles trapezoids, and the first trapezoidal block and the second trapezoidal block are made of CrWSi steel, so as to achieve the impact resistance of the fixed mounting ring. At the same time, the material of the second alloy steel is alloy steel, so that the fixed sleeve body and the fixed mounting ring are more firm and the service life of the fixed sleeve body and the fixed mounting ring is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0025] Figure 1 It is a schematic diagram of the main structure of a watertight conductor with a pile cap used at sea;

[0026] Figure 2 It is a schematic diagram of the assembly structure of a fixed sleeve body for an offshore watertight conductor with a pile cap;

[0027] Figure 3 It is a schematic diagram of the internal structure of a pipe body of a watertight pipe with a pile cap used at sea;

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of a pipe body of a watertight pipe with a pile driving cap used at sea;

[0029] Figure 5 It is a schematic diagram of the main structure of a fixed sleeve for an offshore water-blocking pipe with a pile cap;

[0030] Figure 6 The present invention is a schematic diagram of the internal structure of a fixed sleeve body and a fixed mounting ring of a watertight conductor with a pile cap used at sea.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Waterproof conduit body; 101. Lower base; 102. Inner wall of conduit; 103. Upper base; 104. Fixing rod; 105. Through hole; 106. Fixing screw; 107. Fixing base;

[0033] 2. Pile cap assembly; 201. Fixed sleeve body; 2011. Steel base body; 2012. Firm layer; 20121. Reinforcement ribs; 2013. First alloy steel; 202. Fixed mounting ring; 2021. Second alloy steel; 2022. Compression-resistant layer; 20221. First trapezoidal block; 20222. Second trapezoidal block; 2023. Third alloy steel. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0037] Example 1: Reference Figures 1 to 6, which is the first embodiment of the utility model, and this embodiment provides a watertight pipe with a pile driving cap for use at sea, which can realize that most watertight pipes on the market currently need to assemble the pile driving cap and the watertight pipe before piling, and this operation method is time-consuming and labor-intensive. Therefore, a watertight pipe with a pile driving cap is needed to meet people's use needs. At the same time, the existing pile driving cap is not strong enough, which causes the problem of shortening the service life of the pile driving cap. The watertight pipe body 1 includes a lower base 101, and the lower base 10 1 is installed with a conduit inner wall 102, and an upper base 103 is installed at the top of the outer wall of the conduit inner wall 102, a fixing rod 104 is installed at the top of the lower base 101, and the top of the fixing rod 104 is fixedly connected to the bottom end of the upper base 103, a through hole 105 is opened inside the lower base 101, a fixing screw 106 is installed at the top of the upper base 103, and a fixing base 107 is installed at the bottom of the outer wall of the upper base 103; the fixing screw 106 cooperates with the through hole 105, and the outer wall of the fixing screw 106 is equipped with a fixing bolt.

[0038] The specific working principle is that first, the outer wall of the fixing screw 106 is equipped with a fixing bolt, and then the fixing screw 106 is threadedly connected with the fixing bolt, so that it is convenient for the operator to splice and assemble the two sets of water-blocking conduit bodies 1.

[0039] Example 2: Reference Figures 1 to 6 , which is the first embodiment of the utility model, and this embodiment provides a watertight pipe with a pile cap for use at sea, which can realize that most watertight pipes on the market currently need to assemble the pile cap and the watertight pipe before piling, and this operation mode is time-consuming and labor-intensive, so a watertight pipe with a pile cap is needed to meet people's use needs, and the pile cap assembly 2 includes a fixed sleeve body 201, and the fixed sleeve body 201 is installed on the top of the fixed base 107, and a fixed mounting ring 202 is installed on the top of the fixed sleeve body 201, and the diameter of the fixed mounting ring 202 is larger than the diameter of the fixed sleeve body 201;

[0040] The fixed sleeve body 201 includes a steel base body 2011, a fixing layer 2012 is arranged at the top of the steel base body 2011, and a first alloy steel 2013 is arranged at the top of the fixing layer 2012, the fixing layer 2012 includes reinforcing ribs 20121, and the reinforcing ribs 20121 are arranged in a horizontal and vertical manner and staggered with each other and installed inside the fixing layer 2012, and the materials of the first alloy steel 2013, the second alloy steel 2021 and the third alloy steel 2023 are of the same structure;

[0041] The fixed mounting ring 202 includes a second alloy steel 2021, a pressure-resistant layer 2022 is arranged at the top of the second alloy steel 2021, and a third alloy steel 2023 is arranged at the top of the pressure-resistant layer 2022, the pressure-resistant layer 2022 includes a first trapezoidal block 20221 and a second trapezoidal block 20222, the first trapezoidal block 20221 is installed in a horizontal arrangement at the top of the pressure-resistant layer 2022, and the second trapezoidal block 20222 is installed in a horizontal arrangement at the bottom of the pressure-resistant layer 2022, and the first trapezoidal block 20221 and the second trapezoidal block 20222 cooperate with each other.

[0042] The specific working principle is that, through the design of the fixed sleeve body 201 and the fixed installation ring 202, and the bottom end of the fixed sleeve body 201 and the outer wall of the upper base 103 are welded into an integrated structure, so that the fixed sleeve body 201 and the upper base 103 are fixed more firmly, so that the fixed sleeve body 201 and the fixed installation ring 202 can protect the watertight duct body 1 during piling, avoid direct piling to the watertight duct body 1, which may cause damage to the watertight duct body 1, and through the reinforcing ribs 20121 that are arranged in a transversely staggered manner inside the firming layer 2012, and the material of the reinforcing ribs 20121 is glass fiber, so that the reinforcing The reinforcing rib 20121 is used to make the fixed sleeve body 201 more firm. At the same time, the first trapezoidal block 20221 and the second trapezoidal block 20222 cooperate with each other, and the shapes of the first trapezoidal block 20221 and the second trapezoidal block 20222 are isosceles trapezoids, and the first trapezoidal block 20221 and the second trapezoidal block 20222 are made of 4CrW2Si steel, so that the impact resistance of the fixed mounting ring 202 is improved. At the same time, the second alloy steel 2021 is made of alloy steel, so that the fixed sleeve body 201 and the fixed mounting ring 202 are more firm, and the service life of the fixed sleeve body 201 and the fixed mounting ring 202 is longer.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A watertight pipe with a pile cap for use at sea, characterized in that: include, A watertight conduit body (1), comprising a lower base (101), wherein a conduit inner wall (102) is installed inside the lower base (101), and an upper base (103) is installed at the top end of the outer wall of the conduit inner wall (102), a fixing rod (104) is installed at the top end of the lower base (101), and the top end of the fixing rod (104) is fixedly connected to the bottom end of the upper base (103), a through hole (105) is opened inside the lower base (101), a fixing screw (106) is installed at the top end of the upper base (103), and a fixing base (107) is installed at the bottom end of the outer wall of the upper base (103); A pile cap assembly (2) comprises a fixed sleeve body (201), the fixed sleeve body (201) being mounted on the top of a fixed base (107), a fixed mounting ring (202) being mounted on the top of the fixed sleeve body (201), and a diameter of the fixed mounting ring (202) being larger than a diameter of the fixed sleeve body (201).

2. A watertight pipe with a pile cap for use at sea as claimed in claim 1, characterized in that: The fixed sleeve body (201) comprises a steel base body (2011), a top end of the steel base body (2011) is provided with a firming layer (2012), and a top end of the firming layer (2012) is provided with a first alloy steel (2013).

3. A watertight pipe with a pile cap for use at sea as claimed in claim 2, characterized in that: The firming layer (2012) comprises reinforcing ribs (20121), and the reinforcing ribs (20121) are arranged in a transverse and vertical manner and are staggered with each other and are installed inside the firming layer (2012).

4. A watertight pipe with a pile cap for use at sea as claimed in claim 1, characterized in that: The fixed mounting ring (202) comprises a second alloy steel (2021), a pressure-resistant layer (2022) is arranged at the top of the second alloy steel (2021), and a third alloy steel (2023) is arranged at the top of the pressure-resistant layer (2022).

5. A watertight pipe with a pile cap for use at sea as claimed in claim 4, characterized in that: The pressure-resistant layer (2022) comprises a first trapezoidal block (20221) and a second trapezoidal block (20222); the first trapezoidal block (20221) is installed at the top end of the pressure-resistant layer (2022) in a horizontal arrangement; the second trapezoidal block (20222) is installed at the bottom end of the pressure-resistant layer (2022) in a horizontal arrangement; and the first trapezoidal block (20221) and the second trapezoidal block (20222) cooperate with each other.

6. A watertight pipe with a pile cap for use at sea as claimed in claim 2, characterized in that: The materials of the first alloy steel (2013), the second alloy steel (2021) and the third alloy steel (2023) are of the same structure.

7. A watertight pipe with a pile cap for use at sea as claimed in claim 1, characterized in that: The fixing screw rod (106) and the through hole (105) cooperate with each other, and the outer wall of the fixing screw rod (106) is equipped with a fixing bolt.

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