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  天舟系列货运飞船的发射任务属于“零窗口”发射任务,如何确保任务安全可靠、稳定高效?

  执行发射天舟货运飞船的长征七号火箭,通过一系列性能挖潜,将发射窗口拓展为120秒,为射前更多应对突发事件争取到了更大空间。

  文昌航天发射场 钟文安:我们近几年为了大型低温液体火箭的准时发射。我们把信息化手段提升了,所以我们把原先为了高可靠、高安全的一些耦合的动作,把它结合了。结合了以后各个系统可以平行开展,让可靠性准时发射的概率提升了30%。

  在火箭低温推进剂加注过程中,通过对温度、压力的全程严密监控,确保推进剂流动平稳、加注系统安全运行。同时,数据判读的自动化、智能化,减少了冗余测试项目,从而优化了测发流程,从天舟一号到天舟九号,测试周期从将近40天大幅缩减至20天左右。

  文昌航天发射场 钟文安:我们从零窗口准时发射的概念、方法和技术形成了一套完整的大型低温液体火箭零窗口准时发射的技术体系。我们就是要形成一个中大型低温液体火箭的常态化发射。低成本、高效率、高安全、高稳定、准时发射。

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