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Sacrificial anode assembly

A sacrificial anode and component technology, which is applied in the field of marine engineering, can solve problems such as low current efficiency, negative open circuit potential, and small anode capacitance, and achieve the effects of low manufacturing cost, convenient installation, and good protection effect

Inactive Publication Date: 2012-07-11
CHINA NAT OFFSHORE OIL CORP +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technology described by this patented solves problems associated with installing stain-free structures on sea water because they release electrical currents that help prevent corrosion damage from harming sensitive metals like aluminum or copper. This results in improved safety measures against environmental hazards such as saltwater pitting attack (SSA) caused by acid rain). Additionally, these systems have lower production costs compared to traditional methods while still providing effective protection over longer periods of use.

Problems solved by technology

This patents describes various technical problem addressed by this patented research group during developing a new type of antiosisting material called CATHODES® which can protect against acid gas attacks on offshore pipe lines without reducing their strength due to metal oxidation caused by exposure to these environments.

Method used

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Embodiment Construction

[0021] Such as Figure 2-Figure 4 As shown, the present invention includes: an anode body 1 , an anode leg 2 , a diode 4 and a steel protection box 3 . The anode body 1 is sleeved on the outside of the anode leg 2, and the material of the anode body 1 is aluminum, zinc, magnesium, aluminum-zinc composite material, zinc-magnesium composite material, aluminum-magnesium composite material or aluminum-zinc-magnesium composite material. The diode 4 is connected in series to the anode leg 2 through the wire 5, and the diode 4 is placed in the steel protection box 3; wherein, each anode leg 2 is connected in series with a diode 4, and the number of the diode 4 connected in series can be 1 or more, and the multiple diodes 4 connected in series are connected in parallel. The purpose of connecting multiple diodes in series is to disperse the large current, so that the current passing through each diode 4 becomes smaller, so as to prevent a certain The diode 4 is damaged so that the who...

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Abstract

The invention relates to a sacrificial anode assembly which comprises anode legs and an anode body sleeved outside the anode legs, wherein each anode leg is connected with multiple diodes in series, and the diodes are arranged in a protection box body; the box body comprises an upper cover and a lower cover, and the upper cover and the lower cover are correspondingly buckled and connected together to form the box body having an internal cavity; and the intermediate junction between the upper cover and the lower cover of the box body is provided with an insulating pad, and the upper cover and the lower cover are connected into a whole by sleeving an insulating sleeve pad outside a fastener. When a stainless steel structure is mounted under sea water, the sacrificial anode assembly can send out electric current to protect the stainless steel structure, and the output potential can be changed into positive without reducing the capacitance and current efficiency of the anode body, thereby ensuring that the sacrificial anode assembly can be used for protecting stainless steel having relatively positive cathodic protection potential. At the same time, the invention has the advantages of low manufacturing cost, convenient mounting process and good protection effect.

Description

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Claims

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Application Information

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Owner CHINA NAT OFFSHORE OIL CORP
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