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31. 发明授权

US06366642B1 X-ray tube cooling system 失效
标题翻译： X射线管冷却系统
公开(公告)号：US06366642B1
公开(公告)日：2002-04-02
申请号：US09761488
申请日：2001-01-16
申请人： Gregory C. Andrews
发明人： Gregory C. Andrews
IPC分类号： H01J3510
CPC分类号： H01J35/12 , H01J35/105 , H01J2235/1204 , H01J2235/1262 , H05G1/02 , H05G1/025
摘要： A cooling system for use in conjunction with rotating anode and stationary anode x-ray tubes. The cooling system includes a reservoir containing a volume of coolant in which a portion of the x-ray tube is immersed. A bladder incorporated in the reservoir and in communication with the atmosphere automatically permits thermal expansion of the coolant while maintaining the coolant at atmospheric pressure. An external cooling unit directs a flow of coolant through a pressure drop device proximate to the x-ray tube so that the flowing coolant removes heat from the x-ray tube. Upon exiting the pressure drop device, the heated coolant is directed to the reservoir and ultimately returned to the external cooling unit where heat is removed from the coolant and the coolant then redirected back to the pressure drop device to repeat the cycle. The cooling system includes a pressure switch connected to a pressure tap located upstream of the pressure drop device so that the pressure switch is positioned to sense the pressure of the coolant upstream of the pressure drop device. Simultaneously, the pressure switch is in communication with the coolant disposed in the reservoir. The relatively constant pressure of the coolant in the reservoir permits the pressure switch to consistently and reliably sense and indicate the differential in pressure between the coolant in the reservoir and the coolant upstream of the pressure drop device. The pressure differential sensed by the pressure switch is used to verify the coolant flow rate corresponding to the sensed differential. The sensed pressure differential is used to indicate on a controller/status panel whether or not the coolant flow rate is adequate, and is also used in conjunction with the controller/status panel to shut down the x-ray device if the coolant flow rate is inadequate to ensure safe and reliable operation of the x-ray device.
摘要翻译：与旋转阳极和固定阳极x射线管结合使用的冷却系统。冷却系统包括容纳一定体积的冷却剂的储存器，其中X射线管的一部分被浸入其中。结合在储存器中并与大气连通的气囊自动地允许冷却剂的热膨胀，同时将冷却剂保持在大气压力。外部冷却单元引导冷却剂流通过靠近X射线管的压降装置，使得流动的冷却剂从X射线管移除热量。当离开压降装置时，加热的冷却剂被引导到储存器并且最终返回到外部冷却单元，其中从冷却剂移除热量，然后将冷却剂重新定向回压降装置以重复循环。冷却系统包括连接到位于压降装置上游的压力分接头的压力开关，使得压力开关被定位成感测压降装置上游的冷却剂的压力。同时，压力开关与设置在储存器中的冷却剂连通。储存器中冷却剂的相对恒定的压力允许压力开关一致且可靠地感测并指示储存器中的冷却剂和压降装置上游的冷却剂之间的压力差。由压力开关感测到的压力差用于验证对应于感测差速器的冷却剂流量。感测的压力差用于在控制器/状态面板上指示冷却剂流量是否足够，并且还与控制器/状态面板结合使用以关闭X射线装置，如果冷却剂流量为不足以确保x射线装置的安全可靠运行。

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