Segmented offshore wind power pile grouting sealing ring structure

Abstract

The invention discloses a sectional type offshore wind power pile grouting sealing ring structure which comprises a sealing ring, the sealing ring is of a sectional type structure and is formed by mutually connecting a plurality of rubber blocks in an annular mode, the sealing ring formed after the rubber blocks are connected in the annular mode comprises a mounting part and a sealing part, the mounting part is fixed to a jacket pile leg in a sleeving mode through a locking mechanism, and the sealing part is fixed to the jacket pile leg in a sleeving mode through the locking mechanism. The sealing part expands and extends towards the periphery along the upper part of the mounting part; the rubber block comprises an upper rubber layer, a reinforcing layer and a lower rubber layer; the reinforcing layer is made of high-strength cord fabric, and the cord fabric comprises cord threads densely distributed in the radial direction and cord threads sparsely distributed in the circumferential direction. The problem that a traditional pure rubber seal is low in bearing capacity is solved, a product can be divided into rubber blocks with the uniform size to be vulcanized, then the rubber blocks with the small sections are subjected to hot butt joint vulcanization, finally, the rubber blocks are annularly connected into the size used by the final product, and therefore the machining cost is reduced.

Description

Technical Field

[0001] The invention relates to a segmented offshore wind power pile grouting sealing ring structure, belonging to the field of marine engineering wind power sealing. Background Art

[0002] Seals are one of the key components of engineering equipment, ensuring a good barrier between the sealed medium and the non-sealed medium. Due to the rapid development of the wind power industry in recent years, seals used in wind turbines have also gradually begun to develop, especially seals used in the conductor frame. With the requirement for wind turbines to develop towards a larger megawatt-level power generation, the requirements for conductor frames are getting higher and higher. In order to ensure that the conductor frame is stable in the ocean, offshore piling technology has emerged. The offshore pile foundation generally requires grouting to achieve the connection between the conductor frame and the pile. However, the grouting material is a material with good flowability. It takes a certain amount of time for the grouting material to solidify. It is easy to flow before solidification, so it is generally sealed by a sealing ring. The sealing ring is generally pre-installed on the conductor frame on the shore or at the dock.

[0003] Since offshore wind turbines are constructed under relatively harsh conditions, the sealing effect of the grouting seal affects the construction period and the amount of grouting used during the construction process. In order to save expensive grouting materials and ensure the smooth progress of construction, research on grouting seals has been carried out. This application designs a grouting seal for offshore wind power pile construction to solve the problems of leakage and load-bearing of the product during the grouting process. Summary of the invention

[0004] The purpose of the present invention is to provide a segmented offshore wind power pile grouting seal ring structure, which is used to enhance the supporting strength of the seal and achieve the effect of high reliability after the rubber seal is installed.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a segmented offshore wind power pile grouting sealing ring structure, which includes a sealing ring. The sealing ring adopts a segmented structure, which is composed of a plurality of rubber blocks connected in an annular manner. The sealing ring after the rubber blocks are connected in an annular manner includes a mounting portion and a sealing portion. The mounting portion is fixed on the pile leg of the conductor frame through a locking mechanism, and the sealing portion expands and extends in all directions along the upper direction of the mounting portion.

[0006] Furthermore, the rubber block includes an upper rubber layer, a reinforcement layer and a lower rubber layer.

[0007] Furthermore, the reinforcement layer is made of high-strength cord fabric.

[0008] Furthermore, the cord fabric includes radially distributed cords and circumferentially distributed cords, wherein the radially distributed cords adopt a dense distribution structure, and the circumferentially distributed cords adopt a sparse distribution structure.

[0009] Furthermore, the reinforcement layer is provided with one layer or at least two layers.

[0010] Furthermore, adjacent rubber blocks are butt-jointed together by vulcanization.

[0011] Furthermore, the butt joints between adjacent rubber blocks are vulcanized in the form of pure rubber or pure rubber plus a reinforcing mesh.

[0012] Furthermore, the locking mechanism includes a pressure plate, bolts, nuts and washers. The pressure plate is arranged on the sealing ring mounting part. The bolts pass through the pressure plate, the sealing ring mounting part and the conductor frame pile leg in sequence, and then the ends thereof are locked by nuts and washers.

[0013] The beneficial effects of the present invention are as follows:

[0014] (1) The structural cross-section of the present invention can cover a variety of structural forms. According to the actual load-bearing capacity and requirements of the product, the load-bearing problem of the product can be solved by using one or more reinforcement layers.

[0015] (2) The present invention can achieve different areas and different degrees of enhancement by adjusting the distribution position of the enhancement layer. When multiple enhancement layers are used, they can be distributed in a concentrated manner or in layers, which can be adjusted according to the specific use requirements.

[0016] (3) The reinforcing layer of the present invention is a segmented filling reinforcing layer structure, and the cost of processing and manufacturing the reinforcing layer structure is relatively low.

[0017] (4) The reinforcement layer of the present invention has a special structure, in which the reinforcement layer distributed in the radial direction has a large distribution density, while the reinforcement layer distributed in the circumferential direction has a smaller density. Since the external load of the product comes from the axial direction, the main load-bearing effect is in the radial direction of the product, and the reinforcement layer density in the circumferential direction of the product is small, the size of the product is better maintained during the product vulcanization process.

[0018] (5) The present invention manufactures products in sections, and finally connects the sections together by hot vulcanization to form a final product for testing, thereby reducing the cost pressure of enterprises when developing products.

[0019] (6) The product of the present invention is completed by segmented vulcanization, and the same mold can be used to develop products with the same cross-section but different product diameters, thereby realizing the development of products with multiple sizes and specifications.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the assembly of a segmented offshore wind power pile grouting seal ring structure;

[0022] Figure 2 This is a schematic diagram of the installation of the sealing ring;

[0023] Figure 3 It is the reinforcement layer of the standard first-stage sealing ring product;

[0024] Figure 4 This is the product picture of the entire sealing ring;

[0025] Figure 5 Schematic diagram of pure rubber or pure rubber + reinforcement layer in the cross section of the vulcanized bonding area of ​​the product.

[0026] In the figure; 1 is the leg of the conductor frame; 2 is the grouting pipe route; 3 is the steel pile; 4 is the sealing ring; 5 is the tail end of the plug tip, 6 is the reinforcing rib, and 7 is the front section of the plug tip; 8-1 is the upper rubber layer; 9 is the reinforcement layer; 8-2 is the lower rubber layer; 10 is the metal pressure plate, 11 is the bolt, 12 is the nut, 13 is the gasket, 14 is the circumferentially distributed reinforcement layer, which is particularly sparsely distributed, 15 is the radially distributed reinforcement layer, which is particularly densely distributed, a1, a2 to an-1 and an represent rubber blocks evenly divided in the product, 16 is a product including the reinforcement layer area, 17 is the vulcanized bonding area of ​​two adjacent rubber blocks; 18 is the pure rubber structure of the bonding area, and 19 is the bonding area plus the reinforcement mesh structure. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Figure 1 The entire conductor frame pile is shown, wherein the sealing ring 4 shown is between the conductor frame pile leg 1 and the steel pile 3, and is used to seal the cement slurry from the grouting pipe 2 and the seawater at the bottom. The tip tail end 5, the reinforcing rib 6 and the tip front section 7 form the tip, which is used to guide the sealing ring 4 during installation and prevent the silt on the seabed from entering the conductor frame pile leg.

[0029] like Figure 2 A segmented offshore wind power pile grouting sealing ring structure includes a sealing ring 4. The sealing ring 4 adopts a segmented structure, which is composed of a plurality of rubber blocks connected in a ring shape. The sealing ring 4 after the rubber blocks are connected in a ring shape includes a mounting portion and a sealing portion. The mounting portion is fixed on the conductor frame pile leg 1 through a locking mechanism, and the sealing portion expands and extends around the mounting portion.

[0030] In this embodiment, the seal is installed on the pipe frame pile leg 1 through a locking mechanism composed of a circumferentially distributed pressure plate 10, a bolt 11, a nut 12, and a gasket 13. By adjusting the locking torque of the bolt 11, the rubber at the installation handle is compressed and deformed to form a seal at the bottom. The upper seal is formed by the lip of the product and the steel pile 3 tightly fitting to form an upper seal. The sealing lip and the steel pile 3 form a seal because there is a sufficient amount of interference between the seal and the pile to ensure the sealing of the product. At the same time, the sufficient interference also allows the seal to bear the weight of the upper mud.

[0031] The sealing ring 4 includes an upper rubber layer 8-1, a reinforcing layer 9, and a lower rubber layer 8-2. The upper rubber layer 8-1 is used as the upper surface area to contact the cement slurry; the reinforcing layer 9 is made of high-strength cord fabric, and the structure distribution of the cord fabric is as follows: Figure 3 As shown, its characteristics are that the radial cords 15 are densely distributed, which play a role in reinforcing the product when it is loaded and deformed, and the circumferential cords 14 are sparsely distributed, which mainly play a role in preventing the radial cords 14 from dispersing. By adjusting the material and number of layers of the reinforcement layer, different load-bearing capacities of the product can be achieved; the lower rubber layer 8-2 contacts the seawater and plays a role in sealing the lip.

[0032] Figure 4 The sealing ring shown is composed of multiple identical sealing sections, wherein each of the sections a1 to an is a standard rubber block, including a rubber layer and a reinforcement layer, and the bonding area 17 of any two adjacent sections is a pure rubber structure or a pure rubber plus a reinforcement mesh structure. The cross-sections of the two structures are as follows: Figure 5 As shown, by adjusting the number of layers of reinforcing mesh distributed in the pure glue, the dimensional stability and bonding strength at the interface can be improved.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the protection scope of the present invention in any form, and all technical solutions obtained by equivalent replacement and the like fall within the protection scope of the present invention. The parts not involved in the present invention are the same as the prior art or can be implemented by the prior art.

Claims

1. A segmented offshore wind power pile grouting seal ring structure, characterized in that: It includes a sealing ring, which adopts a segmented structure and is composed of multiple rubber blocks connected in a ring shape. The sealing ring after the rubber blocks are connected in a ring shape includes a mounting portion and a sealing portion. The mounting portion is fixed on the pile leg of the conductor frame through a locking mechanism, and the sealing portion expands and extends around the mounting portion.

2. A segmented offshore wind power pile grouting seal ring structure according to claim 1, characterized in that: The rubber block includes an upper rubber layer, a reinforcement layer and a lower rubber layer.

3. A segmented offshore wind power pile grouting seal ring structure according to claim 2, characterized in that: The reinforcing layer is made of high-strength cord fabric.

4. A segmented offshore wind power pile grouting seal ring structure according to claim 3, characterized in that: The cord fabric comprises radially distributed cords and circumferentially distributed cords, wherein the radially distributed cords adopt a densely distributed structure, and the circumferentially distributed cords adopt a sparsely distributed structure.

5. A segmented offshore wind power pile grouting seal ring structure according to claim 1 or 3, characterized in that: The reinforcement layer is provided in one layer or at least two layers.

6. A segmented offshore wind power pile grouting seal ring structure according to claim 1, characterized in that: Adjacent rubber blocks are butt-jointed together by vulcanization.

7. A segmented offshore wind power pile grouting seal ring structure according to claim 1 or 6, characterized in that: The butt joints between adjacent rubber blocks are vulcanized in the form of pure rubber or pure rubber plus a reinforcing mesh.

8. The segmented offshore wind power pile grouting seal ring structure according to claim 1 is characterized in that: The locking mechanism includes a pressure plate, bolts, nuts and washers. The pressure plate is arranged on the sealing ring installation part. The bolts pass through the pressure plate, the sealing ring installation part and the conductor frame pile leg in sequence, and then the ends thereof are locked by nuts and washers.

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