热水器的结构有：贮水式和快热式。贮水式热水器的钢质贮水筒长期处于热水环境中，内壁会受到腐蚀，腐蚀产物影响到水质，导致穿孔泄漏，热水器报废。针对这一情况，国外通常采取阴极保护与内壁涂层相结合的保护措施，技术成熟，已普遍应用于商品。国内有些热水器厂家开始... Water heater structure are: water storage and fast-heating. Storage water heaters, steel water storage tank long-term hot water environment, the inner wall will be corrosive, corrosive products affect the water quality, leading to perforation leaks, water heaters scrapped. In view of this situation, foreign countries usually take the protective measures of combining cathodic protection and inner wall coating, the technology is mature and has been widely applied to the products. Some domestic water heater manufacturers began ...