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一种带有安全阀的防火切断阀的设计
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Abstract:
本文所涉及的防火切断阀是一种内置有安全阀的电动球阀，用于释放阀门出口因热膨胀引起压力升高且超出了规定的压力。本文介绍的防火切断阀的设计重点在于满足其小型化、轻量化的简化结构设计和特殊的电控制性能要求以及部分关键性能参数的计算。该防火切断阀已经通过了试验验证，已在某商用大飞机的装机应用。同时，作为一种应急设备，该阀也可用于石油化工行业的防火紧急切断阀使用。
The Firewall Shutoff Valve (FWSOV) is a motor actuated, ball valve assembly with an internally installed relief valve, which can release the pressure of the FWSOV outlet port, if the outlet pressure increases above the specified level due to thermal expansion. The point of design methods of the FWSOV is to satisfy its miniaturization and lightweight simple design and its specific Electrical control performance, as well as the calculation of the partial critical specifications in this paper. The FWSOV has been verified by the experimental validation and installed on aircraft for flight. Also, the FWSOV can be used as an Emergency Isolation (shut-down) Valve (EIV) in petrochemical industries.
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