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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 3. Отображено 3.
23-06-2023 дата публикации

Automatic liquid hydrogen filling machine and liquid hydrogen filling method

Номер: CN116293412A
Автор: XU JIAN, HAO JIAFENG, SU JIANAN, ZHANG ZHENYANG, YANG SHENYIN, HUANG LEI, WANG JIAWEI, LAN YUQI, AN GANG, ZHANG ZHEN, XIE HUI, YU BINGYAN, LI JINGPENG, WU PENG, CHEN JINGYAO, YANG CHANGLE, ZUO GUANGWEI, LI ANQI, XIAO HAILIANG
Принадлежит:

The invention relates to an automatic liquid hydrogen filling machine and a liquid hydrogen filling method, and belongs to the technical field of liquid hydrogen filling. The liquid hydrogen filling machine mainly comprises a liquid hydrogen filling pipeline, a replacement purging pipeline, a small-flow precooling pipeline, a gas return pipeline, a replacement emptying pipeline, a main emptying pipeline, a monitoring system, an automatic control system, a switch control valve, a safety valve, a pressure regulating valve, a filter and a liquid hydrogen filling gun. The liquid hydrogen filling method is completed by adopting the liquid hydrogen filling machine. The liquid hydrogen filling machine and the liquid hydrogen filling method are suitable for civil liquid hydrogen refueling stations and applied to filling scenes of liquid hydrogen fuel cell vehicles with relatively small flow. Automatic control of liquid hydrogen filling, automatic adjustment of the hydrogenation speed and accurate ...

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Номер записи: 1
14-07-2023 дата публикации

Optimized hydrogen refueling method and system for hydrogen refueling station based on model predictive control

Номер: CN116428513A
Автор: XU JIAN, SU JIANAN, ZHANG ZHENYANG, YANG SHENYIN, WANG JIAWEI, YU BINGYAN, LI ANQI, LAN YUQI, ZHANG ZHEN, AN GANG, XIE HUI, HUANG LEI, HAO JIAFENG, YANG CHANGLE, ZUO GUANGWEI, LI JINGPENG, WU PENG, CHEN JINGYAO, XIAO HAILIANG
Принадлежит:

The invention relates to a hydrogen refueling station hydrogen optimization filling method, in particular to a hydrogen refueling station hydrogen optimization filling method and system based on model predictive control. Comprises: setting parameter information; establishing a discrete time model to obtain gas flow characteristics in the hydrogen refueling station; establishing a mixed integer nonlinear programming model by taking the start-stop state of the compressor as a known parameter and the connection state of the hydrogen adding machine as a control variable according to gas flow characteristics; a discrete time model is used as a prediction model of model prediction control, a pressure change curve of a vehicle-mounted hydrogen storage device in an ideal filling process is used as a target curve of model prediction control, a prediction time domain is Np, and a control time domain is determined according to an event triggering mechanism; and calculating a control strategy according ...

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Номер записи: 2
12-05-2010 дата публикации

Self-destruction injector with rubber sealing

Номер: CN0101703815A
Автор: LEI FENGLIAN, XIAO HAILIANG, ZHENG JINLU, FENGLIAN LEI, HAILIANG XIAO, JINLU ZHENG
Принадлежит:

The invention relates to a self-destruction injector with rubber sealing, comprising a sheath (1) and a core rod (2). The invention is characterized in that a piston (3) is designed into the structure of an annular sheet sealing ring and is fixed on the front end of the core rod (2) with a clamp ring (4), and the inner wall at the opening of the sheath (1) is provided with a clamp seat matched with the clamp ring. Therefore, the contact area of the piston with the new structure and liquid medicine is less than 5% of the original structure. The outer ring of the annular sheet sealing ring is designed into a two-point annular sealing ring type, thus not only guaranteeing that the sliding performance of the piston meets requirements, but also avoiding the piston from separating from the core rod due to excessive friction force of the piston and the sheath. The design greatly reduces the contact area of the piston and liquid medicine, reduces the possibility of reaction of the piston and certain ...

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Номер записи: 3