Sacrificial anode anti-corrosion device

Abstract

The invention relates to the technical field of metal protection, and discloses a sacrificial anode anti-corrosion device which comprises a base, a hollow floating ring fixedly arranged at the center of the bottom surface, air bags fixedly arranged at four corners of the bottom surface, and a connecting ring fixedly arranged on one side; the placing frame is fixedly arranged on the base, the inner side of the placing frame is divided into a plurality of placing cavities by partition plates, and positioning brackets are formed in the partition plates; the positioning plate is fixedly arranged at the edge of the front side above the base, and positioning holes in one-to-one correspondence with the placing cavities are formed in the positioning plate; the anode block is arranged in the placing cavity, a shell wraps the anode block, the shell is tightly clamped in the positioning bracket, a wire is connected to the anode block, and the other end of the wire extends out of the shell, penetrates through the positioning hole and is connected with a cathode connecting block; and the protective baffle is arranged above the placing frame, is obliquely arranged and is fixedly arranged on the base through a bracket. The water surface anode device has the advantages that the whole anode device is convenient to use on the water surface and high in firmness, and the anode blocks are convenient to replace and maintain.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal protection, in particular to a sacrificial anode anticorrosion device. BACKGROUND

[0002] The sacrificial anode anticorrosion device is a kind of cathodic protection technology based on electrochemistry principle, which protects the target metal from corrosion by sacrificing the metal with higher activity. Its core structure contains two key parts, one is the sacrificial anode, usually selected from zinc, aluminum, magnesium and their alloys, which have lower potential and are more easily oxidized; the other is the protected body, which is the metal structure that needs to be protected, such as pipelines, storage tanks, ships, etc. When working, the sacrificial anode and the protected body are electrically connected through wires or direct contact, and are both in the electrolyte environment such as soil and seawater. Because the anode has stronger electrochemical activity, it will preferentially undergo oxidation reaction, that is, "sacrifice" itself and release electrons, which flow to the protected body through the electrical connection, making its surface always in a cathodic state of electron excess, thereby inhibiting the oxidation corrosion reaction of the protected body itself and prolonging its service life.

[0003] When carrying out cathodic protection operation in water scenes such as water surface and sea surface, two core problems are faced. On the one hand, the device is difficult to fix. In such scenes, the traditional fixing method is easy to loosen and displace due to the influence of water flow impact, wave swing and tide change, which leads to the decrease of the electrical connection stability between the sacrificial anode and the protected body, directly weakening the anticorrosion effect, and even causing local corrosion risk. On the other hand, the anode block is inconvenient to maintain. Because the existing anode blocks are arranged too closely, they not only hinder daily inspection and make it difficult to quickly check the anode wear condition, but also are limited by space when replacing the failed anode, which leads to low operation efficiency, increases maintenance cost and operation safety hazard, and seriously affects the long-term stable operation of the overall cathodic protection system. SUMMARY

[0004] To solve the above problems, the present application provides a sacrificial anode anticorrosion device which is convenient to use on water surface, has high firmness, and the anode block is convenient to replace and maintain.

[0005] To solve the above technical problems, the technical solution provided by the present application is as follows: a sacrificial anode anticorrosion device, comprising: a base, a hollow floating ring is fixedly arranged at the center of the bottom surface, air bags are fixedly arranged at the four corners of the bottom surface, and a connecting ring is fixedly arranged on one side; a placing rack is fixedly arranged on the base, the inner side is divided into a plurality of placing cavities by a partition plate, and the partition plate is provided with a positioning groove corresponding to the placing cavities; a positioning plate is fixedly arranged at the front side edge above the base, and a positioning hole corresponding to the placing cavities is arranged on the positioning plate; Anode block is arranged in the placing cavity, and is externally wrapped with a shell, the shell is tightly clamped in the positioning groove, a wire is connected to the anode block, the other end of the wire extends out of the shell and is connected with a cathode connecting block through the positioning hole; The protective baffle is arranged above the placing rack and is arranged obliquely and is fixed on the base through the support.

[0006] Further, the air bag is provided with an inflation port.

[0007] Further, the connecting ring is composed of two groups of oppositely arranged semicircular rods, and the connecting ends of the semicircular rods in the same group are fixed by screws.

[0008] Further, the placing rack is a semicircular cylinder with an opening facing forward, a plurality of reinforcing strips are fixed between the edge of the partition plate and the inner wall of the placing rack, and a semicircular supporting plate is arranged on the front side of the middle part of the partition plate.

[0009] Further, the positioning hole wall is a smooth arc surface, and the hole diameter is small in the middle and large on both sides.

[0010] Further, the protective baffle is provided with a plurality of guide grooves extending in the oblique direction of the protective baffle.

[0011] Compared with the prior art, the device is suitable for water surface use, and the float ring and the air bag at the bottom of the base can be stably floated on the water surface after inflation to meet the underwater corrosion prevention requirement, and can be easily deflated and stored and transported, and the practicality and flexibility are considered. The connecting structure is stably connected with the external structure through the openable and closable connecting ring to avoid displacement; the placing rack is adapted to the arc profile of the anode block, and the positioning groove, the extension supporting plate and the reinforcing strip of the partition plate jointly fix the anode block to prevent shaking and deviation; the positioning hole slightly clamps the wire to avoid displacement of the wire caused by water flow impact and ensure stable conduction. The anode block is clamped in the partition plate groove through the shell, which facilitates direct removal of the old anode block and replacement of the new block, and the operation is simple and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a perspective view of the present application Figure 1 ; Figure 2 is a perspective view of the present application Figure 2 ; Figure 3 is a top view of the present application; Figure 4 is a side view of the present application; Figure 5 is a front view of the present application.

[0013] As shown in the figure: 1. Base; 2. Hollow floating ring; 3. Airbag; 4. Connecting ring; 5. Placement rack; 6. Partition plate; 7. Positioning plate; 8. Positioning hole; 9. Shell; 10. Wire; 11. Cathode connection block; 12. Protective baffle; 13. Bracket; 14. Inflation port; 15. Reinforcing strip; 16. Semi-circular support plate. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] Combined with appendix Figure 2 A sacrificial anode corrosion protection device includes: a base 1, a hollow floating ring 2 fixedly disposed at the center of the bottom surface, and airbags 3 fixedly disposed at the four corners of the bottom surface. The airbags 3 are provided with inflation ports 14. The inflation ports 14 can flexibly control the inflation and deflation of the airbags 3. The base 1 can be made to float stably on the water surface by inflation to meet the underwater corrosion protection requirements. The device can also be conveniently stored or transported after deflation, which improves the flexibility of use.

[0016] Combined with appendix Figure 1 Appendix Figure 2 A connecting ring 4 is fixedly provided on one side of the base 1. The connecting ring 4 is composed of two sets of oppositely arranged semi-circular rods. The joint ends of the semi-circular rods in the same set are fixed by screws, so that the connecting ring 4 can be opened and closed flexibly, which is convenient for quick fixation or disassembly to external structures (such as sea piles or ship hulls). At the same time, the screw connection can ensure the connection strength and prevent the device from shifting.

[0017] Combined with appendix Figure 1 Appendix Figure 4 The placement rack 5 is fixedly mounted on the base 1. Its inner side is divided into several placement cavities by a partition 6. The partition 6 is provided with a positioning groove. The placement rack 5 is a semi-cylindrical shape with an opening facing forward, which is adapted to the arc-shaped contour of the anode block shell 9. Several reinforcing strips 15 are fixed between the edge of the partition 6 and the inner wall of the placement rack 5 to enhance the connection stability between the partition 6 and the placement rack 5. A semi-circular support plate 16 extends forward from the middle of the partition 6 to further support the anode block, prevent it from shifting during shaking, and improve the overall structural stability.

[0018] Combined with appendix Figure 1 Appendix Figure 5 The positioning plate 7 is fixedly installed on the front edge above the base 1. It has positioning holes 8 that correspond one-to-one with the placement cavity. The wall of the positioning hole 8 is a smooth arc surface, and the hole diameter is small in the middle and large on both sides. This can reduce the friction loss when the wire 10 passes through, extend the life of the wire, and form a slight clamping effect on the wire 10 to prevent the wire from shifting due to water flow impact and ensure conductivity stability.

[0019] Combined with appendix Figure 1 Appendix Figure 4Anode block is arranged in the placing cavity, and is externally wrapped with a shell 9 which is tightly clamped in the positioning groove. A wire 10 is connected to the anode block, and the other end of the wire 10 extends out of the shell 9 and is connected to a cathode connecting block 11 through the positioning hole 8. The shell can protect the anode block and further improve the corrosion resistance.

[0020] The accompanying drawings are referred to in the description of the application Figure 1 The accompanying drawings are referred to in the description of the application Figure 3 The accompanying drawings are referred to in the description of the application Figure 4 A protective baffle 12 is arranged above the placing rack 5 and is inclinedly arranged and fixed on the base 1 through a support 13. The protective baffle 12 is provided with a plurality of guide grooves which extend in the inclined direction of the protective baffle 12 and can quickly guide rainwater, seawater or sundries to one side to be discharged, so that impurities are prevented from being accumulated above the placing rack 5 and the shell 9 of the anode block is prevented from being corroded or blocked, and the normal work of the anode block is ensured.

[0021] Specific embodiments of the application: Before use, the air bags 3 at the four corners of the bottom surface of the base 1 are inflated through the inflation ports 14 of the air bags 3, and the hollow floating ring 2 at the center of the bottom surface is matched, so that the base 1 is stably floated on the water surface. If storage and transportation are needed, the volume can be reduced by deflating the air bags 3 through the inflation ports 14. Then, the connecting ring 4 is opened: the screws at the joint ends of the two groups of opposite semicircular rods are unscrewed, the connecting ring 4 is sleeved on the external structure such as a pile or a ship body, and then the screws are tightened to be fixed, so that the device is prevented from being displaced.

[0022] Then, the anode block with the shell 9 is placed in the placing rack 5 which is a semicylindrical structure with an opening facing forward and is matched with the arc-shaped profile of the shell 9. The shell 9 is tightly clamped in the positioning groove of the partition plate 6, and the semicircular supporting plate 16 at the middle of the partition plate 6 further supports the anode block to prevent the anode block from shaking and deviating. The wire 10 connected to the anode block is taken out, and one end of the wire 10 extends out of the shell 9 and passes through the positioning hole 8 corresponding to the placing cavity on the positioning plate 7. The positioning hole 8 is designed to slightly clamp the wire 10, and finally the cathode connecting block 11 at the other end of the wire 10 is connected to the external structure to be protected from corrosion.

[0023] In use, the inclined protective baffle 12 above the placing rack 5 will discharge rainwater, seawater or sundries to one side through the guide grooves, so that the accumulation of the rainwater, seawater or sundries is prevented from affecting the work of the anode block. When the anode block is replaced, the cathode connecting block 11 is disconnected, the wire 10 is pulled out of the positioning hole 8, and the old shell 9 of the anode block is directly taken out from the groove of the partition plate 6 for replacement.

[0024] In the description of the application, it should be noted that unless otherwise specified and limited, the term "connection" should be understood broadly, for example, it can be fixed connection, detachable connection or integral connection. For those skilled in the art, the specific meaning of the above-mentioned term in the application can be understood according to the specific circumstances.

[0025] The above describes the present application and its embodiments, which are not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution are not creative, and should belong to the protection scope of the present application.

Claims

1. A sacrificial anode corrosion protection device, characterized in that, include: The base (1) has a hollow floating ring (2) fixedly installed at the center of the bottom surface, airbags (3) fixedly installed at the four corners of the bottom surface, and a connecting ring (4) fixedly installed on one side. The placement rack (5) is fixedly mounted on the base (1), and its inner side is divided into several placement cavities by a partition (6). The partition (6) is provided with a positioning slot. The positioning plate (7) is fixedly installed on the front edge above the base (1), and has positioning holes (8) that correspond one-to-one with the placement cavity. An anode block is placed inside a placement cavity and is covered with a housing (9). The housing (9) is tightly snapped into a positioning slot. A wire (10) is connected to the anode block. The other end of the wire (10) extends out of the housing (9), passes through the positioning hole (8), and is connected to a cathode connection block (11). The protective baffle (12) is located above the placement rack (5) and is inclined, and is fixed on the base (1) by the bracket (13).

2. The sacrificial anode corrosion protection device according to claim 1, characterized in that: The airbag (3) is provided with an inflation port (14).

3. The sacrificial anode corrosion protection device according to claim 1, characterized in that: The connecting ring (4) consists of two sets of oppositely arranged semicircular rods, and the joint ends of the semicircular rods in the same set are fixed by screws.

4. The sacrificial anode corrosion protection device according to claim 1, characterized in that: The placement rack (5) is a semi-cylindrical shape with an opening facing forward. Several reinforcing strips (15) are fixed between the edge of the partition (6) and the inner wall of the placement rack (5). A semi-circular support plate (16) extends forward from the middle of the partition (6).

5. The sacrificial anode corrosion protection device according to claim 1, characterized in that: The positioning hole (8) has a smooth arc surface on its wall, with a smaller diameter in the middle and a larger diameter on both sides.

6. The sacrificial anode corrosion protection device according to claim 1, characterized in that: The protective baffle (12) is provided with several guide grooves, which extend in the inclined direction towards the protective baffle (12).

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