Bottom sealing structure construction method for offshore wind power jacket foundation grouting construction

Abstract

The invention provides a construction method of a bottom sealing structure for grouting construction of an offshore wind power jacket foundation, which comprises a conduit main body, the outer surface of the conduit main body is slidably sleeved with a pile body, the outer surface of the conduit main body is provided with two groups of sealing rings, and the outer surface of each group of sealing ring elastically abuts against the inner wall of the pile body. According to the bottom sealing structure for grouting construction of the offshore wind power jacket foundation, an external pipeline injects high-pressure air into an air inlet pipe through an air inlet valve through a telescopic air bag, the high-pressure air in the air inlet pipe enters a storage embedded ring under the pressure effect, and air in the storage embedded ring drives the telescopic air bag to expand; the expanded telescopic air bag forms a sealing structure between the guide pipe body and the pile body, leaked slurry is blocked by the sealing structure after the sealing ring partially loses efficacy, the slurry leakage probability in the operation process of the device is effectively reduced, and therefore the practicability of the device is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power, and in particular to a bottom sealing structure construction method for offshore wind power conduit foundation grouting construction. Background Art

[0002] The construction of the jacket foundation is to insert the jacket main structure onto the multi-pile foundation, and the connecting part is grouted. In the traditional jacket installation grouting process, a rubber sealing ring is used to form a bottom-sealed grouting connection section between the pile and the jacket plug tip, so as to prevent the grouting material from leaking into the pile body and causing losses. However, due to the complex transportation and installation environment of the device, the rubber sealing ring in the device is easily damaged during transportation or installation, which increases the probability of leakage during the operation of the device, thereby affecting the practicality of the device. Summary of the invention

[0003] The purpose of the present invention is to provide a bottom sealing structure construction method for offshore wind power conduit foundation grouting construction. This structure uses a telescopic airbag to allow an external pipeline to inject high-pressure air into the air inlet pipe through an air inlet valve. The high-pressure air in the air inlet pipe enters the receiving embedded ring under pressure, and the air in the receiving embedded ring drives the telescopic airbag to expand. The expanded telescopic airbag forms a sealing structure between the conduit body and the pile body. After the sealing ring partially fails, the slurry leaked is blocked by the sealing structure, which effectively reduces the probability of slurry leakage during the operation of the device, thereby enhancing the practicability of the device.

[0004] In order to realize the above-mentioned technical features, the object of the present invention is realized as follows: A bottom sealing structure for grouting construction of an offshore wind power conduit frame foundation, comprising a conduit body, the outer surface of the conduit body being slidably mounted with a pile body, the outer surface of the conduit body being provided with two groups of sealing rings, the outer surface of each group of the sealing rings being elastically pressed against the inner wall of the pile body, a sealing assembly being provided in the middle of the pile body, the sealing assembly being located between the two groups of sealing rings, the sealing assembly comprising a receiving embedded ring, the inner wall of the receiving embedded ring being provided with a telescopic airbag, the receiving embedded ring being fixedly installed with two groups of clamping rings by multiple groups of limit bolts, the outer side surface of each group of the clamping rings being pressed against the surface of the telescopic airbag, the top of the receiving embedded ring being connected with an air intake pipe and an exhaust pipe, the top ends of the air intake pipe and the exhaust pipe being respectively connected with an air intake valve and an exhaust valve, the top of the receiving embedded ring being connected with a detection tube, the inner wall of the detection tube being screwed with a pressure sensor.

[0005] It also includes a plurality of groups of conformal ribs, and the inner side surfaces of each group of conformal ribs are fixedly connected to the outer surface of the receiving embedded ring.

[0006] It also includes a reinforcing pad, the outer surface of which is fixedly connected to the inner wall of the telescopic airbag.

[0007] The top and bottom of the receiving embedded ring are both provided with a plurality of first reinforcement rings, and the inner side surface of each group of the clamping rings is provided with a plurality of second reinforcement rings.

[0008] The surfaces of each group of the limiting bolts, the receiving rings, the air inlet pipe, the exhaust pipe and the detection pipe are provided with an anti-corrosion coating.

[0009] The material of the telescopic airbag is a mixed sulfide of synthetic rubber and high-strength fiber cloth.

[0010] A construction method for a bottom sealing structure of an offshore wind power conductor frame foundation grouting construction: Step 1, exhaust of the storage ring: When in use, the air in the receiving ring is driven by an external suction device to be discharged from the output end of the exhaust valve through the exhaust pipe, and during this process, the telescopic airbag is retracted to the inside of the receiving ring; Step 2, installation of the catheter body: Insert the catheter body into the pile body. During this process, the telescopic airbags are all located in the receiving embedded ring. After the catheter body is inserted into the pile body, the sealing ring seals the two through its own elastic deformation. Step 3, store the inflated ring: The external pipeline injects high-pressure air into the intake pipe through the intake valve. The high-pressure air in the intake pipe enters the receiving embedded ring under the action of pressure. The air in the receiving embedded ring drives the telescopic airbag to expand. The expanded telescopic airbag forms a sealing structure between the catheter body and the pile body. Step 4, treatment of seal failure: When the telescopic airbag is damaged and fails, the air in the storage ring enters the detection tube, and the pressure sensor converts the air pressure data in the detection tube into an electrical signal and transmits it to the external monitoring equipment. Personnel judge the device based on the air intake information and pressure information transmitted by the external monitoring equipment. The slurry leaked after the sealing ring partially fails is blocked by the sealing structure.

[0011] The present invention has the following beneficial effects: 1. The bottom sealing structure of the offshore wind power conduit foundation grouting construction of the present invention uses a telescopic airbag to allow the external pipeline to inject high-pressure air into the air inlet pipe through the air inlet valve. The high-pressure air in the air inlet pipe enters the receiving embedded ring under the action of pressure, and the air in the receiving embedded ring drives the telescopic airbag to expand. The expanded telescopic airbag forms a sealing structure between the conduit body and the pile body. After the sealing ring partially fails, the slurry leaked is blocked by the sealing structure, which effectively reduces the probability of slurry leakage during the operation of the device, thereby enhancing the practicability of the device.

[0012] 2. The bottom sealing structure of the offshore wind power conduit foundation grouting construction of the present invention uses a sealing component to enable an external suction device to drive the air in the receiving embedded ring to be discharged from the output end of the exhaust valve through the exhaust pipe. During this process, the telescopic airbag shrinks to the inside of the receiving embedded ring, and then the conduit body is inserted into the pile body. During this process, the telescopic airbag is located in the receiving embedded ring, which reduces the probability of damage during the assembly of the device, thereby enhancing the applicability of the device.

[0013] 3. The bottom sealing structure of the offshore wind turbine conduit foundation grouting construction of the present invention uses a pressure sensor. When the telescopic airbag is damaged and fails, the air in the embedded ring enters the detection tube. The pressure sensor converts the air pressure data in the detection tube into an electrical signal and transmits it to the external monitoring equipment. The personnel judge the device according to the air intake information and pressure information transmitted by the external monitoring equipment, which effectively improves the convenience of device status monitoring, thereby enhancing the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 Schematic diagram of the structural sealing assembly of the present invention.

[0016] Figure 2 It is a cross-sectional view of the structural sealing assembly of the present invention.

[0017] Figure 3 It is a schematic diagram of the structure of the present invention.

[0018] In the figure: 1. catheter body; 2. pile body; 3. second reinforcement ring; 4. sealing assembly; 5. storage ring; 6. telescopic airbag; 7. limit bolt; 8. clamping ring; 9. intake pipe; 10. exhaust pipe; 11. intake valve; 12. exhaust valve; 13. detection tube; 14. pressure sensor; 15. conformal rib plate; 16. reinforcement pad; 17. first reinforcement ring. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0020] See also Figure 1-3The present invention provides a technical solution: a bottom sealing structure for grouting construction of an offshore wind power conduit frame foundation, comprising a conduit body 1, the outer surface of the conduit body 1 is slidably covered with a pile body 2, the outer surface of the conduit body 1 is provided with two sets of sealing rings, the outer surface of each set of sealing rings is elastically pressed against the inner wall of the pile body 2, and a sealing component 4 is provided in the middle of the pile body 2. The sealing component 4 drives the air in the receiving embedded ring 5 to be discharged from the output end of the exhaust valve 12 through the exhaust pipe 10 by an external suction device. In this process, the telescopic airbag 6 is contracted to the receiving embedded ring 5, and then the catheter body 1 is inserted into the pile body 2. During this process, the telescopic airbags 6 are all located in the receiving embedded ring 5, which reduces the probability of damage during the assembly of the device, thereby enhancing the applicability of the device. The sealing component 4 is located between the two sets of sealing rings. The sealing component 4 includes a receiving embedded ring 5. The inner wall of the receiving embedded ring 5 is provided with a telescopic airbag 6. Through the telescopic airbag 6, the external pipeline injects high-pressure air into the intake pipe 9 through the intake valve 11. The high-pressure air in the intake pipe 9 enters the receiving embedded ring 5 under pressure, and the air in the receiving embedded ring 5 is filled with air. The telescopic airbag 6 is dynamically expanded, and the expanded telescopic airbag 6 forms a sealing structure between the catheter body 1 and the pile body 2. After the sealing ring partially fails, the slurry leaked is blocked by the sealing structure, which effectively reduces the probability of slurry leakage during the operation of the device, thereby enhancing the practicality of the device. The storage embedded ring 5 is fixedly installed with two groups of clamping rings 8 through multiple groups of limit bolts 7. The outer side surface of each group of clamping rings 8 is tightly pressed against the surface of the telescopic airbag 6. The top of the storage embedded ring 5 is connected to the air inlet pipe 9 and the exhaust pipe 10. The tops of the air inlet pipe 9 and the exhaust pipe 10 are respectively connected to the inlet pipe 9 and the exhaust pipe 10. The air valve 11 and the exhaust valve 12, the top of the receiving ring 5 is connected to a detection tube 13, the inner wall of the detection tube 13 is screwed with a pressure sensor 14, through the pressure sensor 14, when the telescopic airbag 6 is damaged and fails, the air in the receiving ring 5 enters the detection tube 13, the pressure sensor 14 converts the air pressure data in the detection tube 13 into an electrical signal and transmits it to the external monitoring equipment. The personnel judge the device according to the intake information and pressure information transmitted by the external monitoring equipment, which effectively improves the convenience of device status monitoring, thereby enhancing the practicability of the device.

[0021] In the present invention, in order to reduce the probability of deformation failure of the storage ring 5, a plurality of groups of conformal ribs 15 are included for improving the structural strength of the storage ring 5. The inner side surface of each group of conformal ribs 15 is fixedly connected to the outer surface of the storage ring 5, thereby reducing the probability of deformation failure of the storage ring 5.

[0022] In the present invention, in order to reduce the probability of failure due to wear of the sealing surface of the telescopic airbag 6, a reinforcing pad 16 for increasing the thickness of the sealing surface of the telescopic airbag 6 is also included. The outer surface of the reinforcing pad 16 is fixedly connected to the inner wall of the telescopic airbag 6, thereby reducing the probability of failure due to wear of the sealing surface of the telescopic airbag 6.

[0023] In the present invention, in order to improve the convenience during the connection between the storage ring 5 and the clamping ring 8, a plurality of first reinforcement rings 17 for providing a locking platform for the limit bolt 7 are arranged on the top and bottom of the storage ring 5, and a plurality of second reinforcement rings 3 for extending the thread length fixed with the limit bolt 7 are arranged on the inner side surface of each group of clamping rings 8, thereby improving the convenience during the connection between the storage ring 5 and the clamping ring 8.

[0024] In the present invention, in order to extend the effective service life of the device, an anti-corrosion coating for reducing the rust rate is provided on the surface of each set of limit bolts 7, storage ring 5, intake pipe 9, exhaust pipe 10 and detection tube 13, thereby extending the effective service life of the device.

[0025] In the present invention, in order to extend the effective service life of the telescopic airbag 6, the material of the telescopic airbag 6 is set to a mixed sulfide of synthetic rubber and high-strength fiber cloth, so that the telescopic airbag 6 has excellent deformation characteristics, reduces the wear amount of the telescopic airbag 6 during the deformation process, and thus extends the effective service life of the telescopic airbag 6.

[0026] In this embodiment, the electrical components are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device such as a computer that performs control.

[0027] Embodiment 2: A construction method for a bottom sealing structure of an offshore wind power conductor frame foundation grouting construction: Step 1, exhaust of receiving insert ring 5: When in use, the air in the receiving ring 5 is driven by an external suction device to be discharged from the output end of the exhaust valve 12 through the exhaust pipe 10. During this process, the telescopic airbag 6 is retracted to the inside of the receiving ring 5. Step 2, installation of the catheter body 1: Insert the catheter body 1 into the pile body 2. During this process, the telescopic airbags 6 are all located in the receiving ring 5. After the catheter body 1 is inserted into the pile body 2, the sealing ring seals the two through its own elastic deformation. Step 3, inflation of the receiving ring 5: The external pipeline injects high-pressure air into the air intake pipe 9 through the air intake valve 11. The high-pressure air in the air intake pipe 9 enters the receiving ring 5 under pressure. The air in the receiving ring 5 drives the telescopic airbag 6 to expand. The expanded telescopic airbag 6 forms a sealing structure between the catheter body 1 and the pile body 2. Step 4, treatment of seal failure: When the telescopic airbag 6 is damaged and fails, the air in the receiving ring 5 enters the detection tube 13, and the pressure sensor 14 converts the air pressure data in the detection tube 13 into an electrical signal and transmits it to the external monitoring equipment. The personnel judge the device according to the air intake information and pressure information transmitted by the external monitoring equipment. The slurry leaked after the sealing ring partially fails is blocked by the sealing structure.

[0028] Working process and principle of the present invention: When in use, the air in the receiving ring 5 is driven by an external suction device to be discharged from the output end of the exhaust valve 12 through the exhaust pipe 10. During this process, the telescopic airbag 6 shrinks to the inside of the receiving ring 5. Then the catheter body 1 is inserted into the pile body 2. During this process, the telescopic airbag 6 is located in the receiving ring 5. After the catheter body 1 is inserted into the pile body 2, the sealing ring seals the two through its own elastic deformation. Then the external pipeline injects high-pressure air into the intake pipe 9 through the intake valve 11. The high-pressure air in the intake pipe 9 enters the receiving ring 5 under pressure. The air in the receiving ring 5 drives the telescopic airbag 6 to expand. The expanded telescopic airbag 6 forms a sealing structure between the catheter body 1 and the pile body 2. When the telescopic airbag 6 is damaged and fails, the air in the receiving ring 5 enters the detection tube 13. The pressure sensor 14 converts the air pressure data in the detection tube 13 into an electrical signal and transmits it to the external monitoring device. The personnel judge the device according to the intake information and pressure information transmitted by the external monitoring device. The slurry leaked after the sealing ring partially fails is blocked by the sealing structure.

Claims

1. A bottom sealing structure for grouting construction of an offshore wind power conduit frame foundation, comprising a conduit body (1), the outer surface of the conduit body (1) being slidably sleeved with a pile body (2), the outer surface of the conduit body (1) being provided with two groups of sealing rings, the outer surface of each group of the sealing rings being elastically pressed against the inner wall of the pile body (2), characterized in that: A sealing assembly (4) is provided in the middle of the pile body (2), the sealing assembly (4) being located between two groups of sealing rings, the sealing assembly (4) comprising a receiving embedded ring (5), the inner wall of the receiving embedded ring (5) being provided with a telescopic airbag (6), the receiving embedded ring (5) being fixedly mounted with two groups of clamping rings (8) via a plurality of groups of limiting bolts (7), the outer side surface of each group of the clamping rings (8) being tightly pressed against the surface of the telescopic airbag (6), the top of the receiving embedded ring (5) being connected with an air intake pipe (9) and an exhaust pipe (10), the top ends of the air intake pipe (9) and the exhaust pipe (10) being connected with an air intake valve (11) and an exhaust valve (12) respectively, the top of the receiving embedded ring (5) being connected with a detection tube (13), the inner wall of the detection tube (13) being screwed with a pressure sensor (14).

2. According to claim 1, a bottom sealing structure for offshore wind power conduit foundation grouting construction is characterized by: It also includes a plurality of groups of conformal rib plates (15), wherein the inner side surface of each group of conformal rib plates (15) is fixedly connected to the outer surface of the receiving embedded ring (5).

3. The bottom sealing structure for offshore wind power conduit foundation grouting construction according to claim 1 is characterized by: It also includes a reinforcing pad (16), the outer surface of the reinforcing pad (16) being fixedly connected to the inner wall of the telescopic airbag (6).

4. The bottom sealing structure for offshore wind power conduit foundation grouting construction according to claim 1 is characterized by: The top and bottom of the receiving embedded ring (5) are both provided with a plurality of groups of first reinforcing rings (17), and the inner side surface of each group of the clamping rings (8) is provided with a plurality of groups of second reinforcing rings (3).

5. The bottom sealing structure for offshore wind power conduit foundation grouting construction according to claim 1 is characterized by: The surfaces of each group of the limiting bolts (7), the receiving ring (5), the air inlet pipe (9), the exhaust pipe (10) and the detection pipe (13) are provided with an anti-corrosion coating.

6. The bottom sealing structure for offshore wind power conduit foundation grouting construction according to claim 1 is characterized by: The material of the telescopic airbag (6) is a mixed sulfide of synthetic rubber and high-strength fiber cloth.

7. A method for constructing a bottom sealing structure for grouting construction of an offshore wind power conduit frame foundation according to any one of claims 1 to 6, characterized in that: Step 1, exhaust of the receiving ring (5): When in use, the air in the receiving ring (5) is driven by an external suction device to be discharged from the output end of the exhaust valve (12) through the exhaust pipe (10), and during this process, the telescopic airbag (6) is retracted into the interior of the receiving ring (5); Step 2, installation of the catheter body (1): The catheter body (1) is inserted into the pile body (2), during which the telescopic airbag (6) is located in the receiving ring (5), and after the catheter body (1) is inserted into the pile body (2), the sealing ring seals the two through its own elastic deformation; Step 3, inflation of the receiving ring (5): The external pipeline injects high-pressure air into the air intake pipe (9) through the air intake valve (11). The high-pressure air in the air intake pipe (9) enters the receiving ring (5) under the action of pressure. The air in the receiving ring (5) drives the telescopic airbag (6) to expand. The expanded telescopic airbag (6) forms a sealing structure between the catheter body (1) and the pile body (2). Step 4, treatment of seal failure: When the telescopic airbag (6) is damaged and fails, the air in the receiving ring (5) enters the detection tube (13), and the pressure sensor (14) converts the air pressure data in the detection tube (13) into an electrical signal and transmits it to the external monitoring device. The personnel judge the device based on the air intake information and pressure information transmitted by the external monitoring device. The slurry leaked after the sealing ring partially fails is blocked by the sealing structure.

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