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CN-115572977-A - Auxiliary anode structure for offshore wind power and manufacturing process thereof

CN115572977ACN 115572977 ACN115572977 ACN 115572977ACN-115572977-A

Abstract

The invention belongs to the technical field of cathodic protection and corrosion prevention, and particularly relates to an auxiliary anode structure for offshore wind power and a manufacturing process thereof. Wherein, supplementary anode structure includes: an anode plate; the metal rod is arranged on one end of the anode plate; the main body structure is arranged on the fixed structure and is molded by casting polyurethane, and the anode plate and the metal rod are coated; wherein, the main structure is exposed at one end face of the anode plate far away from the metal rod, and the end of the metal rod far away from the anode plate is connected with a lead which extends out of the main structure. By adopting the polyurethane as the main body structure, the whole weight of the auxiliary anode structure can be greatly reduced in seawater, and underwater construction is facilitated; moreover, because the polyurethane is an insulating material, an insulating structure is omitted between the anode plate and the main body structure, and the whole structure is simplified.

Inventors

  • DU HUI
  • HE YIDONG
  • YI DONGYU

Assignees

  • NINGBO ZHONGHE TECH CO LTD

Dates

Publication Date
20230106
Application Date
20221107
Priority Date
20221107

Claims (10)

  1. 1. An auxiliary anode structure for offshore wind power, comprising: an anode plate (100); a metal rod (200) disposed on one end of the anode plate (100); and a main body structure (300) arranged on the fixed structure, wherein the main body structure (300) is formed by casting polyurethane and coats the anode plate (100) and the metal rod (200); one end face, far away from the metal rod (200), of the anode plate (100) is exposed out of the main body structure (300), one end, far away from the anode plate (100), of the metal rod (200) is connected with a lead (210), and the lead (210) extends out of the main body structure (300).
  2. 2. The auxiliary anode structure for offshore wind power according to claim 1, characterized in that said main body structure (300) is bonded to said anode plate (100) and metal rod (200) after curing.
  3. 3. Auxiliary anode structure for offshore wind power according to claim 2, characterized in that a layer of adhesive is applied between said anode plate (100), metal rod (200) and said main structure (300).
  4. 4. Auxiliary anode structure for offshore wind power according to claim 2, characterized in that the side contact surface between the metal bar (200) and the main body structure (300) is a surface (400) with saw-tooth like grooves.
  5. 5. An auxiliary anode structure for offshore wind power according to claim 1, characterized in that a cavity (310) is provided in the main body structure (300), one end of the metal rod (200) far from the anode plate (100) extends into the cavity (310), a cable stuffing box (510) with one end extending into the cavity (310) is further provided on the mounting end face of the main body structure (300), and the lead (210) extends out of the main body structure (300) through the cable stuffing box (510).
  6. 6. The auxiliary anode structure for offshore wind power of claim 5, characterized in that a mounting plate (500) is arranged at a port of the cavity (310) of the main body structure (300), the cable stuffing box (510) is assembled on the mounting plate (500), and the main body structure (300) and the mounting plate (500) are fixedly connected through a first embedded bolt (520).
  7. 7. Auxiliary anode structure for offshore wind energy according to claim 6, characterized in that said cavity (310) is filled with paraffin (600) coating said metal rod (200) and wire (210).
  8. 8. An auxiliary anode structure for offshore wind power according to any of claims 5-7, wherein a second pre-embedded bolt (700) is arranged in the main body structure (300), and the end of the second pre-embedded bolt (700) extends out of the mounting end face of the main body structure (300).
  9. 9. An auxiliary anode structure for offshore wind power according to claim 8, wherein the main body structure (300) is further provided with a plurality of sealing bulges (320) surrounding the cable stuffing box (510) on the installation end surface, and the sealing bulges (320) surround from inside to outside layer by layer.
  10. 10. A manufacturing process of an auxiliary anode structure for offshore wind power is characterized by comprising the following steps: step one, assembling parts: welding the anode plate (100) and the metal rod (200); preparing a first embedded bolt (520) and a second embedded bolt (700); step two, pouring: pouring the anode plate, the metal rod (200), the first embedded bolt (520) and the second embedded bolt (700) to form a main body structure (300) by using a mold, wherein the poured material is polyurethane; after casting, the outer edge of the anode plate (100) is covered by the main body structure (300), and one end face connected with the metal rod (200) is covered by the main body structure (300); one end of the main body structure (300) far away from the anode plate (100) is provided with a cavity (310), and one end of the metal rod (200) extends into the cavity (310); the first embedded bolt (520) and the second embedded bolt (700) extend out of the main body structure (300); step three, packaging: a lead (210) is installed at the end part of the metal rod (200), paraffin (600) is poured into the cavity (310), and the joint of the metal rod (200) and the lead (210) is wrapped in the paraffin (600); step four, assembling parts: preparing mounting panel (500), assembling cable stuffing box (510) on mounting panel (500), closing mounting panel (500) lid on the port of cavity (310) to fix mounting panel (500) on major structure (300) through first buried bolt (520) of equipartition, wherein, stretch out from cable stuffing box (510) after wire (210) on metal rod (200) stretch out paraffin (600).

Description

Auxiliary anode structure for offshore wind power and manufacturing process thereof Technical Field The invention belongs to the technical field of cathodic protection and corrosion prevention, and particularly relates to an auxiliary anode structure for offshore wind power and a manufacturing process thereof. Background The impressed current cathodic protection method is one of electrochemical protection methods, and is characterized by that it utilizes an impressed DC power supply and auxiliary anode to force electrons to flow from soil to the protected metal, so that the potential of the protected metal structure is higher than that of its peripheral environment to make protection. The impressed current cathodic protection method is one of the protective measures for preventing the corrosion of the offshore wind power structure. The impressed current cathodic protection system mainly comprises a potentiostat, an auxiliary anode, a reference electrode and other devices, wherein the impressed electrode connected with the positive electrode of a direct current power supply in the impressed current cathodic protection system is called as the auxiliary anode, and the auxiliary anode enables current to reach the surface of a protected structure from the anode through a medium, so that the performance of the impressed current cathodic protection system affects the service life, the protection distance and the protection effect of the cathodic protection system and is an indispensable important component in the impressed current cathodic protection system. The Chinese patent application with the publication number of CN114438502A discloses an auxiliary anode structure for offshore wind power, which comprises an anode body, an auxiliary anode installation back plate, a wiring cabin and an auxiliary anode insulation seat, wherein the anode body, the auxiliary anode installation back plate and the auxiliary anode insulation seat are integrally formed into an integral structure through the auxiliary anode insulation seat, so that the auxiliary anode structure has the advantages of simple structure, high strength, good sealing performance, simplicity and convenience in installation and the like. However, the auxiliary anode structure has other problems, such as more structures, complex installation, and increased leakage points of the junction box body due to the junction box body being installed on the body of the auxiliary anode installation back plate. Disclosure of Invention The invention aims to provide an auxiliary anode structure for offshore wind power and a manufacturing process thereof, so as to solve the problems in the background technology. To achieve the above object, in one aspect, there is provided an auxiliary anode structure for offshore wind power, comprising: an anode plate; the metal rod is arranged on one end of the anode plate; the main body structure is arranged on the fixed structure and is molded by casting polyurethane, and the anode plate and the metal rod are coated; wherein, the main structure is exposed at one end face of the anode plate far away from the metal rod, and the end of the metal rod far away from the anode plate is connected with a lead which extends out of the main structure. In the above technical solution, further, the main body structure is bonded with the anode plate and the metal rod into a whole after being cured. In any of the above technical solutions, further, a layer of adhesive is coated between the anode plate, the metal rod and the main body structure. In any of the above technical solutions, further, the side contact surface between the metal rod and the main body structure is a surface with a saw-toothed groove. In any of the above technical solutions, further, a cavity is provided in the main structure, one end of the metal rod, which is far away from the anode plate, extends into the cavity, a cable stuffing box is further provided on the mounting end face of the main structure, one end of the cable stuffing box extends into the cavity, and the lead extends out of the main structure through the cable stuffing box. In any one of the above technical solutions, further, a mounting plate is arranged in the cavity of the main body structure, the cable stuffing box is assembled on the mounting plate and extends out of the mounting end face of the main body structure, and the main body structure and the mounting plate are fixedly connected through a first embedded bolt. In any of the above technical solutions, further, paraffin wax covering the metal rod and the lead is filled in the cavity. In any one of the above technical solutions, further, a second embedded bolt is arranged in the main body structure, and an end portion of the second embedded bolt extends out of an installation end face of the main body structure. In any of the above technical solutions, further, a plurality of sealing protrusions surrounding the cable stuffing box are further arranged on the