热搜词:冷凝器  冷凝器厂家  列管式冷凝器  不锈钢冷凝器  半盘管反应釜  搪瓷设备  储罐  

当前位置:
首页 > 技术知识

厂家解读列管式冷凝器的防腐技巧方法

人气:0 评论:0 日期:2019-01-12 22:07:23

大家可能遇到过这样的问题,列管式冷凝器在使用的过程中,有时候会出现被腐蚀的现象。那么我们怎么做才能防止其被腐蚀呢?下面就来教大家几种它的防腐方法,希望对大家有所帮助:

You may have encountered such a problem, tube condenser in the use of the process, sometimes there will be corrosion phenomenon. So what can we do to prevent it from being corroded? Next, I will teach you several methods of anti-corrosion, hoping to help you all:

1、电化学保护法

1. Electrochemical Protection Method

电化学保护法分为阴极保护和阳极保护。阴极保护是利用外加直流电源,使列管式冷凝器的金属表面上的阳极变为阴极而受到保护。这种方法消耗电量大,费用高,采用极少。阳极保护法是把被保护的设备接以外加电源的阳极,使金属表面生成钝化膜,从而达到保护。

The electrochemical protection method is divided into cathodic protection and anodic protection. Cathodic protection is to protect the metal surface of tubular condenser from anode to cathode by using an external DC power supply. This method consumes a large amount of electricity, costs a lot, and uses very little. Anodic protection method is to connect the protected equipment with the anode of the external power supply, so that passive film can be formed on the metal surface, so as to achieve protection.

2、耐腐蚀材料

2. Corrosion Resistant Materials

采用耐蚀材料(如双目不锈钢、哈氏合金、钛、钛合金、铜等),这些材料耐腐蚀性强,可以提高列管式冷凝器的使用寿命,但这些高耐腐蚀性的材料价格昂贵,制造成本高,一次性投入的成本大,企业一般难以接受,推广困难。

The use of corrosion-resistant materials (such as binocular stainless steel, Hastelloy alloy, titanium, titanium alloy, copper, etc.) can improve the service life of tubular condensers because of their strong corrosion resistance. However, these materials with high corrosion resistance are expensive in price, high in manufacturing cost and high in one-time investment, which are generally unacceptable to enterprises and difficult to popularize.

3、防腐蚀涂层法

3. Anticorrosive Coating Method

在列管式冷凝器的金属表面,通过一定的涂覆方法,覆盖一层耐腐蚀的涂料保护层,以避免金属表面与腐蚀介质的直接接触。这种技术方法经济有效,用于防止气体介质腐蚀,所用涂料大部分为有机高分子混合物溶液。人们逐渐向防油及防溶剂涂料、高温涂料、重防腐涂料及特殊环境用涂料方向发展。

In order to avoid the direct contact between metal surface and corrosive medium, a corrosion resistant coating is coated on the metal surface of tubular condenser by a certain coating method. This technique is economical and effective, and is used to prevent corrosion of gas medium. Most of the coatings used are organic polymer mixture solutions. People are gradually developing toward oil-and solvent-resistant coatings, high temperature coatings, heavy-duty anti-corrosion coatings and coatings for special environments.

4、添加缓蚀剂法

4. Adding Corrosion Inhibitor

在腐蚀性介质中,加入少量的某些物质,而这些物质能使金属的腐蚀大大降低,甚至停止,这类物质称为缓蚀剂。缓蚀剂的加入应以不影响列管式冷凝器的生产工艺和产品质量为原则。

In corrosive media, a small amount of certain substances can be added, and these substances can greatly reduce or even stop the corrosion of metals. These substances are called corrosion inhibitors. The principle of adding corrosion inhibitor is not to affect the production process and product quality of tubular condenser. 

辛苦整理!转载请注明来自 http://www.zqshzb.com/n1b/3082.html

相关文章

技术知识

联系中骐石化

0510-85390527