空间设施的HP氮系统

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公司:

The Space Power Facility (SPF) houses the world’s largest space environment simulation chamber (vacuum chamber) measuring 100 ft. in diameter by 122 ft. high. The facility was designed and constructed to test both nuclear and non-nuclear space hardware in a simulated Low-Earth-Orbiting environment. Some of the test programs that have been performed at the facility include high-energy experiments, rocket-fairing separation tests, Mars Lander system tests, deployable Solar Sail tests and international Space Station hardware tests. The SPF is located at the NASA Glenn Research Center at the Plum Brook site in Sandusky, Ohio.

Challenge:

该系统在俄亥俄州的Sandusky的NASA Space Powerility上支持新设计和制造的混响声学测试设施(RATF)。SAIC构造函数升级了空间电力设施(称为Benham Constructors,LLC,在完成工作时,SAIC的全资子公司),采用传教功能,包括混响声学,机械振动和模态测试设施。

图表的系统用于通过声喇叭向氮气流动并作为惰性吹扫气体。升级是Glenn空间环境测试项目的一个组成部分,负责完成测试设施,以提供NASA星座计划和Johnson Space Center的猎户座船员勘探车所需的一站式空间环境测试。CEV是正在为月球和火星回到月球和火星而开发的下一代载人航天飞机的一部分。

The horn room has 36 nitrogen-driven acoustic horns to simulate the high noise levels that will be experienced during a space vehicle launch and supersonic ascent conditions. The RATF is capable of an overall sound pressure level of 163dB within a 101,500 cubic foot reverberant chamber.

Solution:

图表能够提供技术专长和advice in high-pressure liquid supply systems. Working with Benham/SAIC Constructors and the end user, we designed a system to satisfy all customer requirements. Chart was able to determine that their existing equipment would not work for their application. In order to reduce the maintenance of high pressure pumps, a pump-less system was designed and manufactured by Chart. The system is capable of storage and delivery of liquid nitrogen at 780 gpm at a constant pressure of 300 psig for a duration of 20 minutes and one test per day. The liquid nitrogen flows into the water-bath vaporizer which supports a vaporization of a flow rate of 72,000 scfm.

该系统利用370psig(500mawp)的高压Vs-6000推动箱,在300psig(363mawp)上为两个Vs-9000储罐提供蒸气压,以支撑液体戒断期间所需的流速。该系统由Benham的SCADA系统控制通过使用两个独立的PID控制环和两个CPT表征座椅控制阀来维持所有三个罐的压力,以获得即用状态。

图表提供了所有LN的设计,工程,制造,供应和调试2供应设备。图表供应设备下游的系统的高级工程服务包括所有低温管道的热量和应力分析。

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