蒸汽喷射泵和干式机械泵真空系统运行成本的比较

Operating cost comparison of steam jet vacuum pump and dry-type mechanical vacuum pump

钢铁真空冶炼抽真空系统主要采用蒸汽喷射泵和干式机械泵。文章对比分析两种系统的运行成本表明:干式机械泵较蒸汽喷射泵有运行成本的优势,特别是当系统抽真空能力较小时,优势更加明显;蒸汽价格对蒸汽喷射泵的运行成本有重要影响,应根据全厂低压蒸汽平衡核算蒸汽喷射泵运行成本;干式机械泵的国产化具备较好的市场前景。

The steam jet vacuum pump and dry - type mechanical vacuum pump were wildly used for steel vacuum smelting. The operating cost comparison shows that the dry - type mechanical vacuum pump system is usually cheaper especially when the vacuum ability is small; The price of steam which is decided by the total plant low pressure steam balance has important influence on operating costs; The domestication of dry - type mechanical vacuum pump is urgently and market demanded.