蒸汽喷射-水环泵改造可行性研究.pdf

重型机械
2014No.4
蒸汽喷射-水环泵改造可行性研究
张钰,吴建龙,贺琪,闫娟
(中国重型机械研究院股份公司,陕西西安710032)
摘要:在国家要求钢铁行业节能减排、降本增效的严峻形势下,中国重型机械研究院股份公司
立足现有蒸汽喷射真空泵技术,提出利用成熟的水环真空泵取代末级蒸汽喷射泵,并从技术和经济方
面对本改造的可行性进行了详细分析。改造后,不仅可叮以解决或有效缓解国内某钢厂蒸汽不足的问
题,而且可以利用螺杄膨胀发电实现节余蒸汽的二次能源回收利用,为该厂降低吨钢成本≥1元/ta
同时能够给同类钢厂提供有益的借鉴。
关键词:钢水真空精炼;蒸汽喷射真空泵;蒸汽供应不足;水环真空泵;蒸汽螺杄膨胀发电
中图分类号:T"F769文献标识码:A文章编号:1001-196X(2014)040042-07
Innovation of steam jet ejector-water ring vacuum bump for steel vacuum refining
ZHANG Yu, WU Jian long, HE qi, YAN Juan
(China National Heavy Machinery Research Institute Co, Itd. Xi an, 710032, China)
Abstract: The government demands and controls strictly steel industry to save energy, reduce cmission, cut
cost and improve productivity. In this grim situation, the company has brought to replace the final stage steam
jet ejector by the mature technology of water ring vacuum bump, which esscntially based on the original tech-
nology of steam jet vacuum pump. From the technical and economical aspects, the innovating feasibility has
been analyzed in detail. Once it be successful, not only the steam shortage for steal vacuum refining of a domes-
tic steel plant could be settled or relieved, but also the secondary steam energy should be recycled effectively
through screw expansion for power generater. Consequently, the cost for per ton of steel would be cut down one
Yuan per ton at least. Meanwhile, this paper thesis may be used as a reference and foundation for similar steel
Keywords: steal vacuum reining; steam jet ejector; steam shortage; water ring vacuum bump; serew ex.
pansion for power generaterbysteam
0前
次能源回收利用?。
为积极响应国家号召,中国重型机械研究院
目前,钢铁行业面对发展严峻形势和环保压股份公司立足原有蒸汽喷射真空泉技术,协同国
力的不断增大,严格能源环保标准和总量限制、内某炼钢厂相关技术、管理人员,进行深入细致
大力推进节能减排,将是未来破解行业产能过剩的现场调査和技术交流,提出利用成熟的水环真
困境的重要途径,是倒逼行业转型发展的有效手空泵取代末级蒸汽喷射築以节省大量蒸汽。本改
段。钢铁行业产能严重过剩,形势极为严峻。造不仪可以解决或有效缓解蒸汽不足的问题,而
国家要求钢铁行业必须有效降低能源消耗,加强且可以利用回收利用节余蒸汽,节约吨钢成本,
增强行业竞争能力。节余的流量波动大的低压饱
收稿日期:2014-02-18;修订日期:2014-03-20
和蒸汽适用于螺杄膨胀发电,实现二次能源
作者简介;张钰(1981-),女,中国重型机械研究院股份公司,
回收利用,降低吨钢成本≥1.0元/t。
工程师