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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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Форма поиска

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 10. Отображено 10.
04-08-2023 дата публикации

Fire coal sampling and conveying device

Номер: CN116534488A
Принадлежит:

The invention belongs to the technical field of transportation devices, and particularly relates to a fire coal sampling and conveying device which comprises a transportation component and a guide component, the transportation component is mainly a component used for transporting fire coal and comprises a specially-made rotating belt, and the two sides of the inner wall of the specially-made rotating belt are both connected with inserting rotating wheels in a rolling mode. A framework composed of an inserted rotating wheel, a built-in connecting rod, a middle-position strip and edge warping equipment is arranged in the special rotating belt, so that the bearing capacity of the special rotating belt is high, the special rotating belt is not prone to collapse due to the pressure of coal, and the edge warping equipment on the two sides can knock and shake the two sides of the inner wall of the special rotating belt; the coal on the upper surface of the specially-made rotating belt is guided ...

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18-04-2023 дата публикации

Method for measuring total sulfur in coal through infrared spectrum based on tungsten trioxide catalysis

Номер: CN115980254A
Принадлежит:

The invention discloses a method for measuring total sulfur in coal by infrared spectroscopy based on tungsten trioxide catalysis, a sealed crushing structure and a sufficient incineration structure are mounted on an incineration box, a dehydration structure is mounted on a dehydration box, a measurement structure is mounted on the inner side of a measurement box, and the measurement structure is mounted on the inner side of the measurement box. The incineration box, the dehydration box and the measurement box are connected with one another through a siphon drainage structure; a silicon carbon tube in charge of heating in an existing domestic sulfur detector is easy to crack at 1300 DEG C, the service life of the silicon carbon tube can be prolonged when the determination temperature of a coal sample is reduced to 1250 DEG C, the decomposition temperature of sulfate is 1250 DEG C, 1250 DEG C cannot meet the requirement that sulfur in coal is completely combusted and decomposed into sulfur ...

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09-06-2023 дата публикации

W flame boiler capable of controlling flame center through combined tertiary air

Номер: CN116241881A
Принадлежит:

The invention discloses a W flame boiler capable of controlling a flame center through combined tertiary air, which comprises a hearth, a flue gas circulating fan, a flue gas interface, two groups of pulverized coal burner components mounted on a lower hearth arch, and two groups of dry bottom hopper tertiary air nozzle components mounted at the bottom of the lower hearth, the two sets of on-arch tertiary air nozzle assemblies are installed at the junction of a lower hearth arch and a front wall and a rear wall, the two sets of upper tertiary air nozzles are installed at the position, above an upper hearth throat, of the front wall and the rear wall, and the soot blowing tertiary air nozzle assembly is installed on an inclined flue above a furnace arch. The flue gas amount of different tertiary air nozzles is adjusted to change the momentum of furnace bottom fire supporting, the momentum of arch up-down flushing, the downward momentum of a throat and the soot blowing disturbance momentum ...

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01-08-2023 дата публикации

Efficient disassembly and assembly type pipeline maintenance supporting device for power plant equipment maintenance

Номер: CN116512080A
Принадлежит:

The efficient disassembly and assembly type pipeline maintenance supporting device for power plant equipment maintenance specifically comprises a sliding rail, the interior of the sliding rail is slidably connected with a control sliding plate, the upper surface of the control sliding plate is fixedly connected with a first adjusting column, and the top of the first adjusting column is fixedly connected with a first fixing cylinder; the supporting mechanism is used for supporting the bottom of the pipeline, the supporting mechanism comprises a base, a first multi-stage electric push rod is fixedly connected into the base, an electric rotating disc is fixedly connected to the top of the first multi-stage electric push rod, and a lifting assembly is fixedly connected into the base; a reinforcing mechanism is fixedly connected to the upper surface of the electric rotating disc, and the base is fixedly connected to the interior of a first fixing cylinder. And the rust removal mechanism is used ...

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23-06-2023 дата публикации

W flame boiler provided with double-medium secondary air nozzles and combustion method

Номер: CN116293651A
Принадлежит:

The invention relates to the technical field of energy-saving and environment-friendly transformation of pulverized coal boilers, in particular to a W-flame boiler provided with double-medium secondary air nozzles and a combustion method, and aims to solve the problem of poor combustion economy of the boiler in a low-nitrogen operation mode. The W flame boiler comprises a W flame boiler hearth, a grading air nozzle, a flue, a hot air duct, a pulverized coal burner and an arch secondary air nozzle. The graded air nozzles are downwards inclined by 45 degrees, and the upper half area and the lower half area are arranged to be a smoke subarea and a hot air subarea respectively; a secondary air nozzle on the arch is arranged on the back fire side and adopts a direct-current air design, and the front half area and the rear half area are respectively arranged as a flue gas subarea and a hot air subarea; an adjusting valve is arranged on the pipeline from the flue to the flue gas partition, and ...

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02-05-2023 дата публикации

Uniform mixing device for coal sample analysis

Номер: CN116046511A
Принадлежит:

The invention discloses a uniform mixing device for coal sample analysis, and relates to the technical field of coal sample analysis equipment, the uniform mixing device comprises a sleeving cabin, a uniform mixing tank and a driving motor, the inner side of the sleeving cabin is provided with a sleeving cavity matched with the uniform mixing tank, and the uniform mixing tank is internally provided with a uniform mixing cavity for storing a coal sample. According to the uniform mixing device for coal sample analysis, through cooperative use of the uniform mixing tank, a sleeving cavity, a speed reducer and a side fixing plate, when coal powder to be uniformly mixed is placed in the uniform mixing tank, the uniform mixing tank can be inserted into the sleeving cavity on the inner side of a sleeving cabin; then a driving motor and a speed reducer are sleeved downwards from the top of the sleeving cabin, the speed reducer is embedded into the sleeving cabin, meanwhile, side fixing plates on ...

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21-11-2023 дата публикации

Coal-air synchronous dynamic coordinated control method for coal-fired unit

Номер: US11822316B2
Принадлежит: Suzhou Tpri Ener & Enviro Tech Co Ltd

A coal-air synchronous dynamic coordinated control method for a coal-fired unit is provided, comprising: determining functional relationship between unit loads and designed coal feed rates and functional relationship between unit loads and flue gas operation wet-basis oxygen contents, respectively; obtaining a theoretical wet flue gas volume and a combustion-supporting dry air volume per unit mass of burning coal, and calculating an actual combustion-supporting dry air volume per unit mass of burning coal; calculating an actual low calorific value of feed coal; calculating a combustion-supporting dry air volume and an outlet wet flue gas volume; according to the target value of load instruction at a future time point, calculating a coal feed rate variation and a combustion-supporting dry air volume variation; obtaining an operation wet-basis oxygen content variation; and obtaining target values of the coal feed rate and the operation wet-basis oxygen content to be adjusted.

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15-06-2023 дата публикации

Coal-air synchronous dynamic coordinated control method for coal-fired unit

Номер: US20230185282A1
Принадлежит: Suzhou Tpri Ener & Enviro Tech Co Ltd

A coal-air synchronous dynamic coordinated control method for a coal-fired unit is provided, comprising: determining functional relationship between unit loads and designed coal feed rates and functional relationship between unit loads and flue gas operation wet-basis oxygen contents, respectively; obtaining a theoretical wet flue gas volume and a combustion-supporting dry air volume per unit mass of burning coal, and calculating an actual combustion-supporting dry air volume per unit mass of burning coal; calculating an actual low calorific value of feed coal; calculating a combustion-supporting dry air volume and an outlet wet flue gas volume; according to the target value of load instruction at a future time point, calculating a coal feed rate variation and a combustion-supporting dry air volume variation; obtaining an operation wet-basis oxygen content variation; and obtaining target values of the coal feed rate and the operation wet-basis oxygen content to be adjusted.

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13-12-2023 дата публикации

Method for improving the efficiency of steam turbine of thermal power unit

Номер: LU504490B1
Принадлежит: Hebei Hanfeng Power Generation Co Ltd

The invention specifically discloses a method for improving the efficiency of steam turbine of thermal power unit, includes the following steps: step 1, using steam to treat the steam turbine of thermal power unit; step 2, introducing a detergent into the steam turbine of thermal power unit; step 3, introducing water into the steam turbine of thermal power unit for washing; step 4 for some cases, introducing a passivator into the steam turbine of thermal power unit, so as to remove the scale inside the steam turbine of thermal power unit. The method for improving the efficiency of steam turbine of thermal power unit provided by the invention can effectively remove scale and prevent scaling inside the steam turbine of thermal power unit, so as to effectively improve the working efficiency of the steam turbine of thermal power unit.

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13-12-2023 дата публикации

Ash water calorific value instrument for measuring coal quality of thermal power units

Номер: LU504489B1
Принадлежит: Hebei Hanfeng Power Generation Co Ltd

Provided is an ash water calorific value instrument for measuring coal quality of thermal power units, and the instrument includes: a sampling mechanism, the sampling mechanism is used for collecting a coal sample; a measuring mechanism, the measuring mechanism is used for detecting quality and composition of a sample; an ash water calorific value detecting mechanism, the ash water calorific value detecting mechanism is used for detecting an ash value, a moisture value and a calorific value of the coal sample; and a control unit, the control unit is used for controlling operation state of the sampling mechanism, the measuring mechanism and the ash water calorific value detecting mechanism. The coal quality is performed graded detection, so as to reduce interaction between the moisture value, ash value and heat.

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