3．0T高场强核磁共振设备机房布局及施工准备

目的：通过对3．0T核磁共振设备机房施工前期的合理布局、充分准备,缩短了施工时间,使得后期使用安全便捷,为医院节约了资金。方法：根据医院具体特点,在选址时充分考虑运输、配电、通风、承重及电磁干扰等问题,逐步进行落实、做好施工准备。结果：机房选址要求承重在10t以上、磁体中心点3m内铁磁物质要做评估,周围移动的汽车及变压器必须在3G线以外,要求有专用变压器且容量〉150kVA。设备接地电阻〈2Q,屏蔽房对地绝缘〉1000Ω。失超管高出地面3．8m以上,周围不能有空调进风口。水冷机通风良好,北方地区还要做好室外机的冬季防冻。磁体问排风按每小时换气≥12次设计。结论：医院大型设备施工准备及辅助设备安装过程中的各个环节要匹配合理,同时注重和不同单位之间的协作。合理的设备布局和施工准备,是设备顺利安装的保证。

Research on the layout and construction preparation for 3.0T high-field nuclear magnetic resonance equipment room

Objective： To do the research on the layout and construction preparation for 3.0T high-field nuclear magnetic resonance equipment room, greatly shorten the construction time and save money for hospital by the safe and convenient usage. Methods： According to the specific characteristics of hospital sitting in full consideration of transportation and distribution, ventilation, bearing, electromagnetic interference and so on, we implement gradually, were ready to work in the construction. Results： Computer room location requirements bearing within 10tons, magnets, center of 3m in ferromagnetic material to do assessment, and moving around the car and the transformer must be beyond 3G line, required a special transformer and the capacity of more than 150kVA. Equipment grounding resistance is less than 2ohms, shielding room of insulation is greater than 1000 ohms. Super tube is higher than 3.8m above the ground, there be no air conditioning air inlet. Water-cooled machine well ventilated, northern region need to get the winter outdoor antifreeze. Exhaust air change per hour between magnet design of not less than 12times. Conclusion： Hospital construction for large equipment and ancillary equipment is installed in the process of each link to match reasonably, pay attention to the collaboration between different units and at the same time. Reasonable equipment layout and construction preparation is the guarantee of equipment installation smoothly.