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四川泸天化股份有限公司尿素合成塔是由日本神户制钢所1974年设计制造,规格为φ2800mm×3400mm,筒体由7层厚12mm的K-TEN62M钢板包扎而成,上、下球形封头为厚105mm的JIS SB49SR整体锻件,内壁衬8mm的SUS316L尿素级不锈钢。该设备已经运行了30多年,已经对旧衬里进行了多次局部维修,且旧衬里腐蚀减薄严重,为保证该设备的安全运行,业主决定更换该设备的全部衬里。文中对该设备的衬里更换
Sichuan Lutianhua Co., Ltd. urea synthesis tower is designed and manufactured by Japan’s Kobe Steel 1974 specifications φ2800mm × 3400mm, the cylinder is made of K-TEN62M 7-layer thick 12mm steel banding, the upper and lower spherical head It is a JIS SB49SR monolithic forging with a thickness of 105mm and a SUS316L urea-grade stainless steel with 8mm inner wall lining. The facility has been in operation for more than 30 years, has undergone several local repairs to the old lining, and the corrosion of the old lining has been severely reduced. To ensure the safe operation of the equipment, the owner decided to replace the entire lining of the equipment. The text of the equipment lining replacement