Annular zinc alloy sacrificial anode suitable for seabed environment

Abstract

The utility model discloses an annular zinc alloy sacrificial anode suitable for a seabed environment. The annular zinc alloy sacrificial anode comprises a base, a zinc alloy sacrificial anode and a controller, wherein the zinc alloy sacrificial anode and the controller are arranged on the base; the zinc alloy sacrificial anode comprises two anode blocks which are symmetrically arranged in a semi-ring shape, the outer sides of the anode blocks are sleeved with protective shells which are arranged in a semi-ring shape, extending shell sleeves are arranged in the two sides of each protective shell, and the extending shell sleeves on the two sides are connected through a connecting column. A temperature sensor is installed in the protective shell, and the output end of the temperature sensor is connected with the controlled end of the controller; a ventilation cover is further mounted between the anode block and the protective shell; according to the annular zinc alloy sacrificial anode suitable for the seabed environment, the protective shell is arranged on the surface of the sacrificial anode, so that accelerated consumption of the sacrificial anode due to the influence of the external environment is avoided, and meanwhile, the seabed temperature is detected in time by arranging the temperature sensor; and the influence on the protection effect caused by the damage of the zinc alloy sacrificial anode due to temperature change is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sacrificial anodes, and particularly relates to an annular zinc alloy sacrificial anode applicable to the seabed environment. Background Art

[0002] A sacrificial anode refers to a situation where, in the electrolytic cell theory with a metal as the anode, the anode (metal) gradually consumes as the current flows out. Sacrificial anodes are usually only economically applied to structures with a small required protection current and in environments with a low soil resistivity.

[0003] Among them, zinc sacrificial anodes are mostly used in seawater environments. When the temperature is higher than 49 °C, the zinc alloy sacrificial anode is prone to intergranular corrosion. When the temperature is higher than 54 °C, the electrode potential of the zinc anode becomes positive, and its polarity with steel is reversed. It becomes the cathode and is protected, while the steel becomes the anode and is corroded. Therefore, when using tin alloy sacrificial anodes, attention needs to be paid to the influence of temperature changes on the zinc alloy sacrificial anode at all times.

[0004] In addition, in a seawater environment, generally no protective measures are taken on the surface of the zinc alloy sacrificial anode. When substances such as sediment at the bottom of the seawater come into direct contact with the zinc alloy sacrificial anode, it is easy to cause the zinc alloy sacrificial anode to be lost faster. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide an annular zinc alloy sacrificial anode applicable to the seabed environment, which can reasonably protect and monitor the zinc alloy sacrificial anode and avoid damage to the zinc alloy sacrificial anode.

[0006] To solve the above technical problems, the technical solutions adopted by the utility model are as follows.

[0007] An annular zinc alloy sacrificial anode applicable to the seabed environment includes a base, a zinc alloy sacrificial anode arranged on the base, and a controller; the zinc alloy sacrificial anode includes two anode blocks symmetrically arranged in a semi-circular shape, a protective shell arranged in a semi-circular shape is sleeved on the outer side of the anode block, extension shell sleeves are arranged inside both sides of the protective shell, and the two extension shell sleeves are connected by a connecting column; a temperature sensor is installed inside the protective shell, and the output end of the temperature sensor is connected to the controlled end of the controller; a ventilation cover for accelerating heat dissipation is also installed between the anode block and the protective shell.

[0008] For the above annular zinc alloy sacrificial anode applicable to the seabed environment, the protective shell is made of ceramic material.

[0009] For the above annular zinc alloy sacrificial anode applicable to the seabed environment, a weight sensor is further arranged inside the base, and the output end of the weight sensor is connected to the input end of the controller.

[0010] The above-mentioned annular zinc alloy sacrificial anode applicable to the seabed environment is provided with a limit baffle on the base for positioning the protective shell.

[0011] Due to the adoption of the above technical solutions, the technical progress achieved by the present utility model is as follows.

[0012] The present utility model provides an annular zinc alloy sacrificial anode applicable to the seabed environment. By arranging a protective shell on the surface of the sacrificial anode, the accelerated consumption of the sacrificial anode due to the influence of the external environment is avoided. At the same time, by arranging a temperature sensor to timely detect the temperature of the seabed, the damage of the zinc alloy sacrificial anode caused by temperature change and the influence on the protection effect are avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic internal structure diagram of the present utility model.

[0015] Wherein: 1. Base, 2. Anode block, 3. Protective shell, 4. Connecting column, 5. Limit baffle, 6. Ventilation cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] An annular zinc alloy sacrificial anode applicable to the seabed environment, as Figures 1 to 2 shown, includes a base 1, a zinc alloy sacrificial anode disposed on the base 1, and a controller. The zinc alloy sacrificial anode includes two anode blocks 2 symmetrically arranged in a semi-circular shape. A protective shell 3 arranged in a semi-circular shape is sleeved outside the anode blocks 2. Extension shell sleeves are arranged inside both sides of the protective shell 3, and the two extension shell sleeves are connected by a connecting column 4.

[0018] A temperature sensor is installed inside the protective shell 3. The output end of the temperature sensor is connected to the controlled end of the controller, and it can give an alarm in time after the temperature rises to a certain value, avoiding the loss of the anode performance of the zinc alloy sacrificial anode due to temperature change.

[0019] The protective shell 3 is made of ceramic material, which can prevent seawater and sediment on the seabed from directly contacting the anode blocks 2, causing serious wear of the anode blocks.

[0020] A ventilation cover 6 is also installed between the anode blocks 2 and the protective shell 3, which can improve the heat dissipation effect of the anode blocks 2 themselves and avoid the change of the performance of the zinc alloy sacrificial anode due to too high temperature.

[0021] The base 1 is provided with a limiting baffle 5 for positioning the protective shell 3, which can quickly complete the assembly of the zinc alloy sacrificial anode.

[0022] A weight sensor is also arranged inside the base 1. The output end of the weight sensor is connected to the input end of the controller, which can timely detect the weight of the zinc alloy sacrificial anode and avoid the loss of protection performance caused by excessive consumption of the sacrificial anode.

[0023] During use, the anode block 2 is respectively assembled with the breathable cover 6 and the protective shell 3, and then the two anode blocks are installed on the base 1 through the connecting column 4.

[0024] When the temperature detected by the temperature sensor reaches a certain value, it will send an alarm signal to the controller to avoid the performance change of the zinc alloy sacrificial anode caused by too high temperature and the inability to play a protective role.

[0025] When the weight sensor detects that the weight is lower than a certain value, it sends a signal to the controller to facilitate the timely replacement of the zinc alloy sacrificial anode.

[0026] The utility model provides an annular zinc alloy sacrificial anode applicable to the seabed environment. By arranging a protective shell on the surface of the sacrificial anode, the accelerated consumption of the sacrificial anode due to the influence of the external environment is avoided. At the same time, by arranging a temperature sensor to timely detect the temperature of the seabed, the damage of the zinc alloy sacrificial anode caused by temperature change and the influence on the protection effect are avoided.

Claims

1. A ring-shaped zinc alloy sacrificial anode suitable for submarine environments, characterized in that: The invention comprises a base (1), a zinc alloy sacrificial anode arranged on the base (1), and a controller; the zinc alloy sacrificial anode comprises two anode blocks (2) symmetrically arranged in a semi-ring shape, the outer side of the anode block (2) is provided with a protective shell (3) arranged in a semi-ring shape, and extension shells are arranged inside the two sides of the protective shell (3), and the two extension shells are connected by a connecting column (4); a temperature sensor is installed inside the protective shell (3), and the output end of the temperature sensor is connected to the controlled end of the controller; a breathable cover (6) for accelerating heat dissipation is also installed between the anode block (2) and the protective shell (3).

2. The annular zinc alloy sacrificial anode suitable for a submarine environment according to claim 1, characterized in that: The protective shell (3) is made of ceramic material.

3. The annular zinc alloy sacrificial anode suitable for a submarine environment according to claim 1, characterized in that: A weight sensor is also arranged inside the base (1), and the output end of the weight sensor is connected to the input end of the controller.

4. The annular zinc alloy sacrificial anode suitable for a submarine environment according to claim 1, characterized in that: The base (1) is provided with a limit baffle (5) for positioning the protective shell (3).

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