Chassix operates a variety of large induction furnaces, some batch melting and some heel melt- ing.
Chassix公司拥有多种 大型感应炉，包括熔 炼炉和保温炉。
• An emergency backup system to maintain furnace cooling in the event of pump failure or power outage. Because cooling systems are so essential, when the system at Chassix was no longer able to meet its needs, the manage- ment team moved quickly to repair or replace it. According to Darold “Jack” Roop, senior project engi-
neer, Chassix, the problems with the old cooling system had increased considerably when new furnaces were installed to support growth in the company’s casting business. “We added three 12.5 metric tons per hour, medium fre-
quency induction furnaces for batch melting, along with their power supplies, compressors and hydraulics,” Roop explained. “But our cooling system lacked the capacity to handle this new load. Due to inadequate cooling, the furnaces frequently overheated and tripped out. Several coils were burned up. We did not have sufficient cooling to allow us to run all of our furnaces at the same time. Tis reduced our metal production and limited our ability to fully benefit from the new melting capacity we had just added.” Chassix determined repairs to the existing cooling system
would not provide the cooling capacity needed, so it set up and funded a project to replace much of the system. Chassix project manager Frank Burton oversaw the creation of the new cooling system. “Our cooling tower was old, the wood was rotting and
falling apart and its three pumps had to run all the time to provide needed cooling,” he said. “Tere was no redundancy. If one pump failed, production had to be shut down until the pump could be replaced. Shutting down was a slow process. Te only emergency backup was city water, and that outflow presented environmental concerns.”
不再能够满足其需求时，管理团队迅速采取行动修复 或更换系统。
据Chassix公司高级项目工程师Darold “Jack”
Roop介绍，当公司安装了新的熔化炉，以支持公司铸 造业务增长时，旧的冷却系统出现问题的频率大大增 加。
“我们增加了3台熔化率为12.5吨/小时的中频感应 炉以增加熔化能力，并匹配了电源柜，空压机和液压 系统，” Roop解释说，“但是，我们现有的冷却系 统缺乏处理新负载的能力。由于冷却不足，炉子经常 过热，跳闸。几个线圈被烧毁了。我们没有足够的冷 却，使我们能够同时运行所有的熔化炉。这降低了我 们的铸件生产并且限制了我们刚刚添加的新的熔炼能 力，无法从中充分受益。”
Chassix公司已经确定针对现有冷却系统不能满 足所需的冷却能力，准备立项更换系统的大部分装 置。Chassix公司的项目经理Frank Burton负责监督 实施新冷却系统的建造。
“我们的冷却塔已老旧，木制部分正在腐烂和崩 溃，而且它的3个泵不得不持续运行以提供必要的冷 却，”他说，“没有富余，如果一个泵发生故障， 生产不得不被暂停，直到泵被更换。停工是缓慢的过 程。唯一应急备用的是自来水，然而溢流的水会产生
September 2014
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