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二十年代初,硫酸生产开始在酸的循环和输送中采用离心泵以来,用于干燥、吸收塔的泵便成了硫酸生产过程中的“心脏”机件,用以保证酸液的循环。七十年来,尽管酸泵的结构与形态出现了千变万化,但始终存在着材质差、结构设计落后、应用周期短、电耗大和效率低等问题。为此,受化工部的委托并经冶金部下达,上海钢铁研究所承接了研制耐硫酸高级合金钢的任务。1984年我所在RS-2耐酸不锈钢研究的基础上对耐高温、耐磨的高级耐酸钢开展了系列化研究。1985年我所与北京染料厂、上海南汇特种钢厂签订了联合测绘和试制LRSP-150耐浓硫酸立式泵的合作协议。采用我所研制成功的RS-2和RS-5耐酸钢制成的样机,工业性运行结果表明:LRSP-150耐浓硫酸立式泵具有耐腐蚀、效率高、省电、结构先进
In the early 1920s, since the production of sulfuric acid began to use centrifugal pumps in the circulation and transportation of acids, the pump used for drying and absorption towers became the “heart” mechanism in the production of sulfuric acid to ensure the circulation of acid. In the past 70 years, despite the ever-changing structure and morphology of acid pumps, there are always problems of poor materials, backward structural design, short application period, large power consumption and low efficiency. To this end, commissioned by the Ministry of Chemical Industry and issued by the Ministry of Metallurgical, Shanghai Institute of Steel undertook the task of developing advanced sulfuric acid-resistant alloy steel. In 1984, based on the RS-2 acid-resistant stainless steel research, we carried out a series of researches on high-temperature-resistant and wear-resistant high acid-resistant steels. In 1985, we signed a cooperation agreement with Beijing Dyeing Factory and Shanghai Nanhui Special Steel Plant to jointly survey and trial produce LRSP-150 concentrated sulfuric acid vertical pump. Using the prototypes of RS-2 and RS-5 acid-resisting steel successfully developed by our company, the industrial operation results show that the LRSP-150 concentrated sulfuric acid vertical pump has the advantages of corrosion resistance, high efficiency, energy saving and advanced structure