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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

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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 5. Отображено 5.
02-09-2015 дата публикации

Method and device for simulating detection of relation of coal burst parameter with burst and burst rule

Номер: CN104880738A
Автор: TANG JUN, CHEN YUJIA, LI XIAOWEI, JIANG CHENGLIN, XU LEHUA, TIAN SHIXIANG, YANG DINGDING
Принадлежит:

The invention discloses a method and device for simulating the detection of the relation of a coal burst parameter with burst and the burst rule, and belongs to a test method and device for predicting coal burst. The device consists of a long cylindrical cylinder; a supporting plate; a pressure column; a bearing rod; a sealing plate; a coal body containing gas; a T-shaped tubular plug; a plug sealing cover; a hollow pressure plate; a hinge turnover plate; a pressurizing screw; a pressure meter interface; a short fixed rod; a long fixed rod; and an inflating port. During the measurement of the coal burst parameter, a coal sample is added in the cylinder and is pressed and molded, and then is vacuumized and filled with gas, thereby forming the coal body containing gas. An electric coal drill is used for driving an auger bit to pass through the T-shaped tubular plug and enters into the coal body in the cylinder for measurement. During the burst simulation, the T-shaped tubular plug, the plug ...

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Номер записи: 1
23-04-2014 дата публикации

PVC sectional material

Номер: CN103739990A
Автор: TIAN SHIXIANG
Принадлежит:

The invention discloses a PVC sectional material, which comprises the following components by weight: 70-80 parts of PVC, 20-30 parts of active calcium, 7-8 parts of ACM, 2-3 parts of titanium dioxide, 3-3.5 parts of stabilizing agent, 9-10 parts of ultramarine, 20-30 parts of fluorescent brightening agent OB, 0.1-0.4 parts of PE wax and 0.3-0.6 parts of stearic acid. The PVC sectional material which contains the components has the advantages of low cost, high toughness and high strength.

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Номер записи: 2
29-08-2023 дата публикации

Circulating air flow type liquid nitrogen fracturing device and method

Номер: CN116658142A
Автор: ZHANG LEI, TIAN YUECHEN, LIU YONGCHENG, GUO LUCHENG, YUAN XIAOCHUAN, TIAN SHIXIANG, XIE QINGXUE, HAO DINGYI
Принадлежит:

The circulating air flow type liquid nitrogen fracturing device comprises an impact part, the impact part comprises a heat insulation part, the heat insulation part is arranged on the top coal wall of a drill hole and provided with a shell in a penetrating mode, the bottom face of the shell is arranged to be an open end, a heating part is arranged at the bottom of an inner cavity of the shell, and an impact part is arranged at the bottom of the heating part; a heating cavity is formed between the outer wall of the heating part and the inner wall of the shell, a plurality of fourth valves are arranged on the outer wall of the shell between the heating cavity and the heat insulation part in the circumferential direction, and third valves are arranged in the areas, between the fourth valves and the heat insulation part, in the shell. The external connection part comprises a liquid nitrogen pump station and a gas extraction station, the liquid nitrogen pump station is communicated with the ...

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Номер записи: 3
23-04-2014 дата публикации

Method for drilling holes on soft coal seam to measure coal seam gas pressure

Номер: CN103742129A
Автор: TANG JUN, CHEN YUJIA, ZHANG CHAOJIE, JIANG CHENGLIN, LI XIAOWEI, XU LEHUA, TIAN SHIXIANG
Принадлежит:

A method for drilling holes on a soft coal seam to measure coal seam gas pressure comprises the steps of drilling a shallow hole on the coal seam, placing an orifice pipe in the hole, utilizing cement slurry to fix the orifice pipe in the coal seam; performing drilling through the orifice pipe to the deep part of the coal seam, quitting a drill rod, injecting mixed slurry A and B to solidify coal around the drilled hole, performing drilling again along the originally drilled hole to exceed grouting depth by 3-5m; quitting the drill rod, inserting a capsule hole sealing device with a gas pipe and a water pipe in the drilled hole, sequentially connecting a push rod to push the capsule hole sealing device to be near the drilled hole grouting depth; on an orifice, respectively connecting the gas pipe and the water pipe with a connector on a flange cover, fixing the flange cover on the orifice pipe, utilizing a manual pump to inject water into the capsule hole sealing device in the drilled hole ...

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Номер записи: 4
22-08-2023 дата публикации

Coal seam cracking and permeability increasing system and method based on chemical cold and heat circulation

Номер: CN116624210A
Автор: ZHANG LEI, LIU XINYUAN, LUO LIANG, LI JIACHENG, ZENG SHIPAN, TIAN SHIXIANG, XIE QINGXUE, YE ZHIWEI
Принадлежит:

The invention discloses a coal seam cracking and permeability increasing system and method based on chemical cold and hot circulation, and relates to a device capable of improving the gas permeability and desorption amount of a coal seam and reducing the blocking problem in drainage and mining. The system mainly comprises a drill bit arranged at the foremost end of a drill rod, a positioner located in the drill bit and a hole packer arranged at the rear end of the drill rod; the gas supply pipe, the carbon gas pipe, the liquid nitrogen pipe and the hydrochloric acid pipe are located on the drill rod, the perforation pipe column is located behind the drill bit, and the liquid nitrogen is changed into nitrogen after absorbing heat to fracture a coal seam and forms mixed gas with carbon dioxide injected in the next step to displace gas; the gas displacement effect of mixed gas of nitrogen and carbon dioxide is better than that of single gas displacement. And through perforation, the diffusion ...

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Номер записи: 5