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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 5. Отображено 5.
15-09-2004 дата публикации

从环己烷制备环己酮、环己醇的方法

Номер: CN0001166602C
Автор: ZHOU XIAOWEN, LIU JIHONG, YIN HUAQING, XIAOWEN ZHOU, JIHONG LIU, HUAQING YIN, 周小文
Принадлежит:

... 本发明提供了一种从环己烷制备环己酮、环己醇的方法，包括如下步骤：A.在氧化反应器中用含分子氧的气体氧化环己烷生成含环己基氢过氧化物的氧化混合物；B.将含环己基氢过氧化物的氧化混合物分解，生成环己酮、环己醇；C.在分离器中分离后，蒸馏出环己酮和环己醇；D.将氧化混合物中的废碱进行焚烧处理得到碳酸钠。其中含环己基氢过氧化物的氧化混合物的分解分两段进行，第一段用含碳酸钠或含碳酸钠和多种羧酸的钠盐的碱性水溶液进行非均相催化分解；第二段用含氢氧化钠或含氢氧化钠和多种羧酸的钠盐的碱性水溶液进行进一步分解。采用该方法环己酮、环己醇的收率可以提高3％～9％；氢氧化钠的消耗可以降低45％～88％；并且能够使废碱焚烧得到的碳酸钠循环使用，减少了废渣，从而减少了对环境的污染。 ...

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Номер записи: 1
13-06-2023 дата публикации

Charging pile aging system

Номер: CN116256574A
Автор: LU YU, ZHOU XIAOWEN, LIU JIA, CUI TAO, TU HANQUAN, LIU QINQIN, HUANG YAOLONG, ZHONG QI
Принадлежит:

The invention discloses a charging pile aging system. The system comprises a power distribution control center and a plurality of aging lines connected with the power distribution control center. The power distribution control center is used for regulating and controlling the power of the plurality of aging lines, and cutting off the power input of the fault aging line when the aging line has a fault; each aging line comprises a plurality of aging units which are sequentially connected in series, each aging unit is provided with a corresponding charging pile, and each charging pile is connected with a corresponding switching contactor group in parallel; each aging line is provided with a corresponding remote controller, the remote controller is connected with a plurality of aging units included in the aging line, and the remote controller switches the access state of the charging pile by controlling the switching contactor group to be switched on and off. According to the charging pile ...

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Номер записи: 2
05-05-2023 дата публикации

Power distribution cabinet with mistaken opening prevention effect for electrical equipment

Номер: CN116073252A
Автор: ZHOU XIAOWEN
Принадлежит:

The invention is applicable to the technical field of power distribution cabinets, and provides a power distribution cabinet for electrical equipment with a mistaken opening prevention effect, which comprises a power distribution cabinet body and a cabinet door assembly, a shifting assembly is arranged in the sliding groove in a sliding fit mode. The cabinet door assembly comprises a cabinet door main body, an insertion plate, an electric control assembly and a plurality of insertion rods; the cabinet door main body is rotationally arranged on the power distribution cabinet body; the insertion plate is in sliding fit with the mounting groove and is in insertion fit with the insertion groove; the electric control assembly is arranged in the cabinet door main body and is electrically connected with the electromagnetic coil; the plurality of insertion rods are slidably arranged on the bottom surface of the cabinet door main body; each insertion rod is in insertion fit with the corresponding ...

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Номер записи: 3
29-08-2023 дата публикации

Special-shaped thin-wall cavity machining method

Номер: CN116652253A
Автор: LIU QINGZE, ZHANG SHIGUI, ZHOU XIAOWEN, CHEN PENGFEI, ZHAO BIN, MA JIANHONG
Принадлежит:

The invention belongs to the technical field of sheet metal part machining, and particularly relates to a special-shaped thin-wall cavity machining method which comprises the steps that before the inner wall of a blank is subjected to rough milling machining, a wrapping material with the damping larger than that of the blank is tightly wound around the outer wall of the blank, and before the outer wall of the blank is subjected to rough milling machining, an inner cavity of the blank is tightly filled with a filling material with the damping larger than that of the blank; the cutter relieving phenomenon is avoided while the vibration of the cutter is absorbed. According to the method, the high machining efficiency can be guaranteed, and meanwhile it is guaranteed that the profile tolerance, the wall thickness and other sizes of the machined cavity structure meet the use tolerance requirement.

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Номер записи: 4
23-06-2023 дата публикации

Construction method, system and equipment of part outer cavity milling process model and medium

Номер: CN116305664A
Автор: ZHAO XUNFENG, XIONG JIJIAN, ZHOU XIAOWEN, ZHANG SHENGWEI, ZHOU HAISHUN, LI TIAN, WU HUIRU, YU TIAN
Принадлежит:

The invention provides a construction method, system and equipment for a part outer cavity milling process model and a medium, and the method comprises the steps: obtaining a milling bottom surface of a part based on a part design model, and extracting a first adjacent surface adjacent to the milling bottom surface; traversing all the first adjacent surfaces, and extracting the first adjacent surfaces with external cavity characteristics as second adjacent surfaces; defining the second adjacent surface as a side vertical surface, and forming an outer cavity feature surface set according to the milling bottom surface and all the side vertical surfaces; obtaining a Brep topological boundary of the milling bottom surface and each side vertical surface, and constructing an outer cavity feature contour of the milling bottom surface; constructing an external cavity feature cutting body based on the external cavity feature contour; boolean calculation is conducted on the outer cavity feature cutting ...

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Номер записи: 5