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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 9. Отображено 9.
25-07-2023 дата публикации

System and method for heating natural gas by using flue gas waste heat

Номер: CN116480942A
Принадлежит:

The invention discloses a system and method for heating natural gas through flue gas waste heat. The system comprises a waste heat boiler tail chimney, a gas-water heat exchanger, a natural gas-water heat exchanger inlet pipeline and a natural gas-water heat exchanger outlet pipeline. A smoke heat exchanger is arranged in a chimney at the tail of the waste heat boiler, an outlet of the smoke heat exchanger is communicated with a heat release side inlet of a gas-water heat exchanger, a natural gas-water heat exchanger inlet pipeline is communicated with a heat absorption side inlet of the gas-water heat exchanger, and a heat absorption side outlet of the gas-water heat exchanger is communicated with a natural gas-water heat exchanger outlet pipeline. According to the system and method, natural gas can be heated, and the safety is high.

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11-08-2023 дата публикации

Prediction method for time required for starting process of gas turbine combined cycle unit

Номер: CN116579473A
Принадлежит:

The invention provides a method for predicting time needed in the starting process of a gas turbine combined cycle unit, and relates to the technical field of gas turbines. The method comprises the following steps: acquiring historical time data required by each link of each stage in the starting process of the gas turbine combined cycle unit and historical data of working condition parameters influencing the time required by the starting process of the combined cycle unit, and predicting according to the historical time data to obtain a predicted value of a time constant in the time required by the starting process of the unit, constructing a plurality of BP neural network models, training the plurality of BP neural network models, and predicting through the plurality of trained BP neural network models to obtain a predicted value of a time variable in the time required by the starting process of the unit; and according to the predicted value of the time constant and the predicted value ...

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01-08-2023 дата публикации

Opening and closing power system for electro-hydraulic roller valve of carbonization furnace

Номер: CN116518137A
Принадлежит:

The invention relates to the technical field of carbonization furnace electro-hydraulic roller valve control, and particularly discloses a carbonization furnace electro-hydraulic roller valve opening and closing power system which comprises a swing rod, one end of the swing rod is connected with a valve element of an electro-hydraulic roller valve and rotates synchronously with the valve element of the electro-hydraulic roller valve, and the swing direction of the swing rod is perpendicular to the valve element space of the electro-hydraulic roller valve; the electric-hydraulic push rod is movably connected with the free end of the swing rod; the oil supply system comprises an oil station for storing oil, a gear oil pump motor for supplying oil and an electromagnetic valve for controlling the hydraulic push rod to supply oil; the limiting switch is arranged at the swing stroke end point of the swing rod and controls the power-on and power-off of the gear oil pump motor; the forward and ...

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30-06-2023 дата публикации

Energy-saving compressed air energy storage system and operation control method

Номер: CN116357551A
Принадлежит:

The embodiment of the invention provides an energy-saving compressed air energy storage system and an operation control method. The compressed air energy storage system comprises an air compression unit, a turbine power generation unit and an air storage chamber. Wherein the air compression unit comprises a multi-stage combined air compressor and an energy storage adjusting passage; the multi-stage air compressors are connected in series through the energy storage pipeline to compress air step by step to generate high-pressure air A plurality of input ends of the energy storage adjusting passage are distributed on the energy storage pipeline between the adjacent air compressors, and the output end of the energy storage adjusting passage is connected with the air storage chamber; the air storage chamber is used for storing high-pressure air; the turbine power generation unit comprises a multi-stage combined turbine device and a first energy release adjusting passage; the multiple stages ...

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11-08-2023 дата публикации

Combined sealing structure for turbine pump and liquid rocket engine

Номер: CN116576149A
Принадлежит:

The invention discloses a combined sealing structure for a turbine pump and a liquid rocket engine, relates to the technical field of liquid rocket engines, and aims at solving the problem that a dynamic sealing device of an existing turbine pump is poor in sealing effect. The combined sealing structure for the turbine pump comprises a first-stage liquid sealing wheel and a second-stage liquid sealing wheel which are used for being installed on a rotor, the first-stage liquid sealing wheel and the second-stage liquid sealing wheel are sequentially arranged in the axial direction of the rotor, the first-stage liquid sealing wheel, the second-stage liquid sealing wheel and the rotor rotate synchronously, and the first-stage liquid sealing wheel and the second-stage liquid sealing wheel are both used for conducting liquid sealing on the turbine pump. The liquid rocket engine comprises the combined sealing structure for the turbine pump provided by the scheme.

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15-06-2016 дата публикации

High -speed dental drill bearing engineering plastic retainer special mould

Номер: CN0205310691U
Принадлежит:

... 高速牙钻轴承工程塑料保持架专用模具,包括定模固定板、下模板、定模板、动模板、动模固定板和支撑座,定模板和动模板内分别嵌设有定模型芯和动模座,动模座内设有推环、弹性座、穿设在推环和弹性座中的动模锥型芯,动模锥型芯上部的外壁与弹性座上部的内壁之间设有用于注塑成型保持架的工作型腔,定模固定板和定模板中设有贯通的注料孔,支撑座内嵌设有顶杆推板和位于顶杆推板上的顶杆固定板,顶杆固定板上垂直连接有伸入注料孔的拉料杆以及与推环底部对应设置的顶杆,下模板的中心位置设有通孔。出模时,推环和弹性座被顶杆推动向上移动,从动模座中被顶出时,弹性座在自身弹力作用下会自行弹开使保持架脱模,产品无毛刺,达到精度要求。 ...

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14-07-2023 дата публикации

Compressed air energy storage system and method coupled with thermal power generating unit

Номер: CN116436055A
Принадлежит:

According to the compressed air energy storage system and method of the coupling thermal power generating unit, the peak regulation effect and the heat supply effect are improved, the advantages of being high in use operability, high in peak regulation and heat supply capacity, high in energy storage efficiency and the like are achieved, and the problem that in the compressed air energy storage coupling thermal power generating unit, the energy storage efficiency is high is solved. The method has the technical defects of unstable operation parameters in the operation process, large output fluctuation of the thermal power generating unit, insufficient heat supply capacity under low-parameter operation and the like.

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15-06-2016 дата публикации

Railway bearing injection mold for engineering plastic retainer

Номер: CN0205310692U
Принадлежит:

... 铁路轴承工程塑料保持架用注塑模具,包括定模压板、动模压板以及设在二者之间的定模固定座、动模固定座、动模垫板和支撑座,定模固定座和动模固定座内分别嵌设有定模型芯套和动模型芯套,定模型芯套内嵌设有定模型芯,动模型芯套内嵌设有动模型芯,动模型芯外周面、定模型芯套内周面、定模型芯下端面与动模型芯套上端面之间构成了保持架的工作型腔,动模型芯套中设有顶杆;定模压板和定模型芯中设有贯通的注料孔,注料孔内设有浇口套;支撑座内嵌设有推板和固定板,固定板上设有拉料杆,动模垫板和动模压板之间设有支撑柱。本实用新型的模具采用周全型芯整体抽芯的结构,达到了保持架产品无毛刺的目的,效率高,成本低。 ...

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08-09-2017 дата публикации

A [...] for combined sealing device

Номер: CN0105422863B
Принадлежит:

... 本发明公开了种液氧泵用组合式密封装置,包括依次串联布置的三种非接触式密封,分别为级离心密封、二级干气密封、三级浮动环密封。级离心密封的叶片和二级干气密封的动压槽同向布置,且背向液氧泵入口。二级干气密封、三级浮动环密封和密封壳体之间形成密封腔,并在密封壳体上设置有流体通道,三级浮动环密封上设置有流体通道。该密封装置很好地解决了目前液氧泵密封端面磨损失效或者泄漏量大的问题,并且具有寿命高、可靠性高的特点。 ...

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