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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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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 5. Отображено 5.
06-06-2019 дата публикации

FAULT DIAGNOSIS METHOD AND DEVICE FOR MAIN DISTRIBUTING VALVE OF HYDRAULIC TURBINE GOVERNOR, AND STORAGE MEDIUM

Номер: WO2019104969A1
Автор: ZHANG, Lei, CAI, Weijiang, SUN, Yanling, HE, Linbo, RONG, Hong
Принадлежит:

A fault diagnosis method for a main distributing valve of a hydraulic turbine governor, a fault diagnosis device and a computer storage medium, said fault diagnosis method comprising: acquiring a proportional servo valve feedback signal, a main distributing valve position feedback signal and a servomotor travel feedback signal; and determining, according to the proportional servo valve feedback signal, the main distributing valve position feedback signal and the servomotor travel feedback signal, whether the main distributing valve of the hydraulic turbine governor fails and/or the type of the failure. Said method achieves accurate and timely determination, has a comprehensive basis for determination, and can accurately determine location of a failure and give a corresponding maintenance decision.

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Номер записи: 1
06-06-2013 дата публикации

COMPREHENSIVE REGULATION DEVICE FOR SMALL SPEED-REGULATOR BASED ON INTEGRATED HYDRAULIC PRESSURE TECHNOLOGY

Номер: WO2013078878A1
Автор: HE, Linbo, XU, Dong, CAI, Xiaofeng, CAI, Weijiang, RONG, Hong, ZHU, Xiang, CHEN, Dengshan, CHEN, Xiaoyong
Принадлежит:

A comprehensive regulation device for a small speed-regulator based on an integrated hydraulic pressure technology, the device comprising a main oil inlet P, a main oil return opening T, a three-position four-way proportional valve (1), a first single-coil two-position four-way reversal valve (2), a second single-coil two-position four-way reversal valve (3), a double-coil three-position four-way electromagnetic reversal valve (4), a two-position four-way electromagnetic reversal valve (5) with mechanical positioning function, a two-position six-way double-end hydraulic control reversal valve (6), an adjustable throttle valve (7), an adjustable one-way throttle valve (8), an open servo cavity (9) and a closed servo cavity (10). The present device utilizes a two-position six-way plate type installed hydraulic control reversal valve as an emergency pressure distribution valve, controls the alternation of oil pressure Q1 and Q2 to reliably achieve the actions of normal operation and emergency ...

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Номер записи: 2
23-06-2023 дата публикации

Control method, device and equipment of variable-speed pumped storage unit and medium

Номер: CN116292057A
Автор: BAI CHANGYU, CAI WEIJIANG, YANG XIAOLONG, ZHANG XIE, RONG HONG, CHU YUNPENG, CHEN XIAOYONG
Принадлежит:

The invention discloses a variable-speed pumped storage unit control method, device and equipment and a medium. The method comprises the steps that the water head and power of a current target pumped storage unit are obtained; the obtained water head and power are input into a pre-constructed BP neural network model, and the rotating speed and the guide vane opening degree are obtained; the target pumped storage unit is controlled according to the obtained rotating speed and the guide vane opening degree; wherein the construction of the BP neural network model comprises the following steps: acquiring historical operation data of the pumped storage unit, and constructing a sample set; dividing the sample set into a training set and a verification set according to a preset proportion; a BP neural network model is initialized, the initialized BP neural network model is trained through the training set, the trained BP neural network model is verified through the verification set, and a final ...

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Номер записи: 3
23-06-2023 дата публикации

Water-turbine generator set starting frequency analysis method, device and system

Номер: CN116298505A
Автор: CAI WEIJIANG, XI FAGANG, DU YUZHAO, FU HAILONG, HE LINBO, HE ZHEN, ZHU RONGQIAO, WU CHUNWANG, RONG HONG, WANG YINING
Принадлежит:

The invention discloses a water-turbine generator set starting frequency analysis method, device and system. The method comprises the steps that the actually-measured guide vane opening degree of a water turbine is obtained in real time; the actually-measured guide vane opening degree is subjected to proportional adjustment processing according to unit water head parameters, and the predicted guide vane opening degree is obtained; the predicted guide vane opening degree is input into a first-order inertia link of the water-turbine generator set, and the predicted frequency of the water-turbine generator set is obtained; and comparing the predicted frequency of the water-turbine generator set with the actually-measured frequency of the water-turbine generator set, and determining to reserve the actually-measured frequency of the water-turbine generator set or replace the actually-measured frequency of the water-turbine generator set with the predicted frequency of the water-turbine generator ...

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Номер записи: 4
04-07-2023 дата публикации

Semiconductor processing equipment and semiconductor processing method

Номер: CN116373145A
Автор: RONG HONG, XU TING, LIN WENHAO
Принадлежит:

The invention belongs to the technical field of semiconductors, and particularly relates to semiconductor processing equipment and a semiconductor processing method.The semiconductor processing equipment comprises a base, a mounting table is fixedly mounted on the upper surface of the base, a set of movable grooves are formed in the surface of the mounting table, and fixing rods are rotationally mounted on the inner walls of the movable grooves; a set of motors are fixedly installed on the surface of the base, threaded rods are fixedly connected to output shafts of the motors, the surfaces of the threaded rods are in threaded connection with binding rings, the motors drive the threaded rods to rotate, the threaded rods drive the binding rings to move in the direction away from the base, the binding rings abut against fixing rods when moving, and the fixing rods are tightened towards the center. The wafer fixing device has the advantages that the fixing rods are arranged on the fixing rods ...

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Номер записи: 5