自动化与仪器仪表
自動化與儀器儀錶
자동화여의기의표
AUTOMATION & INSTRUMENTATION
2013年
3期
79-80
,共2页
微生物附着%阴极保护%可控三相半波整流
微生物附著%陰極保護%可控三相半波整流
미생물부착%음겁보호%가공삼상반파정류
The adhesion of microorganism%Cathodic protection%Controlled three phase half-wave rectifier
轮船长期在海洋中航行,船体更容易受到微生物附着的损害.为了解决这一问题,本文提出了一种基于ARM的轮船船体外加电流阴极保护系统,当传感器监测到附着微生物达到一定数量时,系统就会将船体作为一个电极通以电流,此电流方向与腐蚀电流方向相反.并且,阴极提供自由氢的速度超过腐蚀菌去极化作用中利用氢的速度,同时阴极周围的pH升高至抑制硫酸盐还原菌生长繁殖的程度,最终达到保护船体的目的.
輪船長期在海洋中航行,船體更容易受到微生物附著的損害.為瞭解決這一問題,本文提齣瞭一種基于ARM的輪船船體外加電流陰極保護繫統,噹傳感器鑑測到附著微生物達到一定數量時,繫統就會將船體作為一箇電極通以電流,此電流方嚮與腐蝕電流方嚮相反.併且,陰極提供自由氫的速度超過腐蝕菌去極化作用中利用氫的速度,同時陰極週圍的pH升高至抑製硫痠鹽還原菌生長繁殖的程度,最終達到保護船體的目的.
륜선장기재해양중항행,선체경용역수도미생물부착적손해.위료해결저일문제,본문제출료일충기우ARM적륜선선체외가전류음겁보호계통,당전감기감측도부착미생물체도일정수량시,계통취회장선체작위일개전겁통이전류,차전류방향여부식전류방향상반.병차,음겁제공자유경적속도초과부식균거겁화작용중이용경적속도,동시음겁주위적pH승고지억제류산염환원균생장번식적정도,최종체도보호선체적목적.
The hull is easily damaged by the adhesion of the microorganism while ship is sailing in the sea for a long time.To solve this problem,a impressed current cathodic protection system for hull based on ARM has been put forward.When the quantity of microorganism detected by sensor gets a certain level,the system will electrify the hull which will be seen as a electrode.The direc-tion of this current is different from corrosion current. Cathode provides free hydrogen corrosion at a faster rate than the speed of de-polarization effect in the use of hydrogen,At the same time, the PH around cathode rise to inhibit the breeding of sulfate reducing bacteria.Ultimately the hull can be protected.
