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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 7. Отображено 7.
05-02-2014 дата публикации

Variable speed dragging curve optimization control method based on power prediction

Номер: CN103560744A
Автор: FENG ZIMING, JIANG MINZHENG, LI HONGMEI, YANG HUKUN, ZHOU RUIFEN, DONG KANGXING
Принадлежит:

The invention relates to a variable speed dragging curve optimization control method based on power prediction. The variable speed dragging curve optimization control method based on the power prediction comprises the steps that optimization of a variable speed dragging curve is carried out on the input power of a motor to be tested or the working condition parameter data of an oil pumping unit system to be tested according to a Fourier series, calculation is carried out on the parameters of the comprehensive power saving rate and the parameters of the periodic loading coefficient, the variable speed dragging speed curve of the motor is optimized with the maximum of the comprehensive power saving rate as the target under the premise that constraint conditions are met, and the optimized variable speed dragging curve is applied to a machine-rod-pump system through a frequency conversion controller after balance adjustment to enable the oil pumping unit system to run in a condition of stable ...

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Номер записи: 1
21-07-2010 дата публикации

Method for balancing reduction gearbox output shaft torque of ventilator and complete-cycle balancing device

Номер: CN0101781980A
Автор: CHU YINGXIN, JIANG MINZHENG, PENG ZHANGANG, WANG DEMIN, WANG YAN, YINGXIN CHU, MINZHENG JIANG, ZHANGANG PENG, DEMIN WANG, YAN WANG
Принадлежит:

The invention relates to a method for balancing a reduction gearbox output shaft torque of a ventilator and a complete-cycle balancing device, mainly aiming at solving the problems of low power and high energy consumption caused by imbalance of the reduction gearbox output shaft torque of the ventilator. The invention is characterized in that a complete-cycle balancing device provided with a secondary crank and a secondary balancing block are arranged at the outer side of a crank pin of the ventilator; the rotating cycle and the initial mounting angle of the secondary crank as well as the weight of the secondary balancing block are adjusted according to the type of the ventilator and the actual rotation rule of the cranks of the ventilator, so that the amplitude of torque generated after overlapping the torque of the secondary balancing block and the output torque of the self reduction gearbox of the ventilator becomes smaller, thereby achieving the purposes of balancing the output torque ...

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Номер записи: 2
25-05-2011 дата публикации

Dry frictional damping vibration-isolation energy-saving beam hanger

Номер: CN0102071890A
Автор: MINZHENG JIANG, HUKUN YANG, ZIMING FENG, RUIFEN ZHOU, SULING WANG, ZHENXU SUN, YUXIN DAI, LIN BAI, JIANG MINZHENG, YANG HUKUN, FENG ZIMING, ZHOU RUIFEN, WANG SULING, SUN ZHENXU, DAI YUXIN, BAI LIN
Принадлежит:

The invention discloses a dry frictional damping vibration-isolation energy-saving beam hanger, mainly solving the problems of large load variation fluctuation and increased energy consumption of an oil extractor suspension point because the beam hanger adopted in the existing mechanical oil extraction system directly transfers vibration load and inertial load generated by an underground post to a ground oil extractor. The dry frictional damping vibration-isolation energy-saving beam hanger is characterized in that the beam hanger also comprises a dry frictional damping vibration-isolation element (4) and a retainer (9), wherein after the dry frictional damping vibration-isolation element (4), the retainer (9), a seat body (1) and a pressing sleeve (5) are connected according to the structural cooperation relationship, the seat body (1), the dry frictional damping vibration-isolation element (4), the dry frictional damping vibration-isolation element retainer (9) and the pressing sleeve ...

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Номер записи: 3
16-09-2015 дата публикации

Combined pump barrel small-diameter oil well pump

Номер: CN104912782A
Автор: FENG ZIMING, LI QI, JIANG MINZHENG, DING HUANHUAN, GAO QIMING, FANG XIN
Принадлежит:

The invention relates to a combined pump barrel small-diameter oil well pump. The combined pump barrel small-diameter oil well pump comprises a pump barrel assembly, a plunger assembly and an oil inlet valve assembly, an upper cover, a closed oil outlet valve cover, a traveling valve ball, a traveling valve seat and a plunger centering device are arranged in an oil pipe nipple, the upper cover is in threaded connection with the closed oil outlet valve cover, the traveling valve ball and the traveling valve seat are arranged in the closed oil outlet valve cover, the closed oil outlet valve cover is a quincuncial oil outlet hole structure with guide ribs, the upper end portion of the oil pipe nipple is connected with an oil pipe coupling, the lower end of the oil pipe nipple is connected with an upper pump barrel coupling, a hollow plunger is connected to the lower end of a traveling valve assembly, and a rectangular balance groove is formed in the lower portion of the hollow plunger; the ...

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Номер записи: 4
15-08-2023 дата публикации

Oil drainage device and use method

Номер: CN116591638A
Автор: DONG KANGXING, HAN BAICHAO, YANG HUKUN, WU JINGSONG, JIANG MINZHENG, SONG WEI, WANG SULING, ZHAO XINRUI, LIU LIN
Принадлежит:

The invention relates to the field of oil extraction tools, in particular to an oil drainage device with blowout prevention and sand prevention functions and a using method of the oil drainage device. In the application, when the bottom valve is combined with the main body, crude oil cannot be sucked, so that when the oil well workover operation is carried out, the second oil drainage hole and the first oil drainage hole coincide to start oil drainage, and well fluid containing the crude oil in an oil pipe can be discharged, for example, the well fluid is discharged into an annular space of an oil sleeve; blowout accidents caused by too large bottom hole pressure during workover treatment can be avoided. When the bottom valve is separated from the main body, crude oil can be sucked, and normal oil pumping operation is guaranteed. When the oil drainage quantity of the two oil drainage holes does not meet the oil drainage requirement, pressure can be applied to the interior of a well from ...

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Номер записи: 5
23-03-2018 дата публикации

Solid plunger float of eccentrically arranged valve volume oil -well pump

Номер: CN0207131557U
Автор: CHENG TIANCAI, LIU YAO, XU SHUFAN, JIANG MINZHENG, TAN JINGJING, LI WEI
Принадлежит: UNIV NORTHEAST PETROLEUM, NORTHEAST PETROLEUM UNIVERSITY

The utility model relates to a solid plunger float of eccentrically arranged valve volume oil -well pump, this kind of solid plunger float of eccentrically arranged valve volume oil -well pump includecombination pump barrel, plunger assembly, valves assembly, and the second outer tube lower extreme that makes up the pump barrel links to each other with the top connection of eccentrically arrangedvalve reducing, and the end is covered at the delivery valve of setovering to eccentrically arranged valve reducing top connection connection, and the coupling was fixed on the pump barrel was passedthrough to the pump barrel upper end, and circumference equipartition play liquid hole is followed to the coupling on the pump barrel, and the valve bonnet that produces oil of setovering is connected to the pump barrel lower extreme, the pull rod is connected to solid plunger upper end, the valves assembly includes filling valve assembly and delivery valve assembly, the biasing of delivery valveassembly ...

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Номер записи: 6
18-11-2015 дата публикации

Embedded seal and separate seal cover tube head

Номер: CN0204782901U
Автор: YU DONG, LI CHENG, JIANG MINZHENG, LI HONG, ZHU GUOYA
Принадлежит:

The utility model discloses an embedded seal and separate seal cover tube head, including base subassembly, slips hanger, two rubber seal, two annotate that fat valve, two plate valves, manometer stop valve subassembly, manometer, metal seal hanger, casing head body, two screw thread flanges, plugs connect, two plug screws of releasing, production string and protective casings. The utility model has the advantages of switch moment is little, the balancing pole of valve body afterbody can make the valve can realize the light flexibility of operation under the high -pressure load conditions, has guaranteed the utility model discloses the whole sealing performance of device, the whole metal seal that adopt of sealed backing ring and hanger sealing member can carry out fine sealing to the sleeve pipe annular space, and it is convenient more easy to change the accessory.

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Номер записи: 7