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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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Применить Всего найдено 18. Отображено 18.
14-10-2021 дата публикации

SELENIUM NUTRIENT MEDIUM, PREPARATION METHOD AND APPLICATION IN CULTURING SELENIUM-ENRICHED MORCHELLA ESCULENTA THEREOF, AND METHOD FOR CULTURING SELENIUM-ENRICHED MORCHELLA ESCULENTA

Номер: AU2021105637A4
Принадлежит:

The present disclosure provides a selenium nutrient medium, a preparation method and an application in culturing selenium-enriched Morchella esculenta thereof, and a method for culturing the selenium-enriched Morchella esculenta, which relates to the technical field of agriculture. The selenium nutrient medium provided by the present disclosure comprises the following raw materials in parts by mass: 50~60 parts of a selenium nutrient, 6~15 parts of an organic silicon, 68,000 parts of water, and 1,000,000 parts of wheat grains. The present disclosure uses the wheat grains to absorb the selenium nutrient with the help of the permeability of the organic silicon, ensuring that selenium is captured by other elements in the culture medium. The mycelium of Morchella esculenta has a high decomposition and utilization rate to the wheat grains, so the absorption and utilization of the mycelium to selenium is increased, which is conducive to increasing the selenium content of Morchella esculenta products ...

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26-03-2014 дата публикации

Transport beam structure of converter transformer

Номер: CN103662386A
Принадлежит:

The invention relates to a transport beam structure of a converter transformer, and belongs to the technical field of transformer transport equipment. According to the technical scheme, the transport beam structure comprises transport plates (1), transport baffles (2), a fixing device (3), a transformer oil tank (4) and transport holes (5); the transport plates (1) are symmetrically fixed to the two corresponding side walls of the transformer oil tank (4) respectively, and the thickness of the transport plates ranges from 30mm to 80mm; the multiple transport holes (5) are formed in the transport plates, and the transport baffles (2) are connected with the transport plates; sawtooth patterns are arranged on the surfaces of the transport baffles and the surface of the fixing device (3), the transport baffles are meshed with the fixing device through the sawtooth patterns, and the thickness of the transport baffles ranges from 40mm to 90mm. The transport beam structure has the advantages that ...

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28-07-2010 дата публикации

Loaded voltage transformer with angle-connecting high-voltage coil using reactance type on-load tap-changer

Номер: CN0101354954B
Принадлежит:

The invention relates to an on-load powerstat which is in angle connected by a high-voltage coil of a reactance type on-load tap switch; the invention is improved based on the on-load powerstat which is in star connected by the high-voltage coil of the reactance type on-load tap switch; the invention has the main improved points that the high-voltage coil of the reactance type on-load tap switch is adopted for angle connection; and the high-voltage coil adopts a full insulated structure. The on-load powerstat has the advantages that the powerstat can meet the requirements of few winding number of the voltage regulation coil and more voltage regulating levels on the low-voltage side and the angle connection of the high-voltage coil and the insulated levels of the upper end and the lower end are 220kV level; when the three-phase reactance type on-load tap switch operates in a bridge connection state or a non-bridge connection state, the on-load powerstat meets the voltage regulation of the ...

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29-04-2009 дата публикации

Large capacity single body phase angle regulator

Номер: CN0101419861A
Принадлежит:

The invention relates to a large-capacity single-body phase-angle regulator. The phase-angle regulator adopts a single-body structure; the arrangement sequences of the loops of each phase from a core limb to the outside are as follows in sequence: a first pressure regulating loop, a basic loop and a second pressure regulating loop; the first pressure regulating loops and the second pressure regulating loops of each phase are respectively connected to the corresponding vacuum loaded pressure regulating tapping switches of each own; the same name terminals of the first pressure regulating loops and the second pressure regulating loops of each phase are respectively connected with the positive switching positions and the negative switching positions of the corresponding vacuum loaded pressure regulating tapping switches of each own. The large-capacity single-body phase-angle regulator has the beneficial effects that the capacity of the phase-angle regulator is large and below 600MVA; the manufacture ...

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26-03-2014 дата публикации

High-strength converter transformer core drawstring structure

Номер: CN103680854A
Принадлежит:

The invention relates to a high-strength converter transformer core drawstring structure, and belongs to the technical field of converter transformer equipment. According to the technical scheme, the high-strength converter transformer core drawstring structure comprises a steel drawstring (1), a connecting screw rod (2), an insulating pipe (3), a clamp nut (6), a web (7) and a fixing plate (8); the fixing plate (8) is fixed to the web (7); the connecting screw rod (2) penetrates through the fixing plate (8) to be connected with the steel drawstring (1); a threaded hole is formed in the steel drawstring, and the connecting screw rod (2) is inserted into the threaded hole of the steel drawstring; the insulating pipe (3) is arranged at the position, outside the connecting screw rod, of the fixing plate (8); the clamp nut (6) and a standby nut (4) are arranged at the outer end of the connecting screw rod, and a gasket (5) is arranged between the clamp nut (6) and the standby nut (4). The high-strength ...

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28-01-2009 дата публикации

Load-ratio voltage transformer with angle-connecting high-voltage coil using reactance type on-load tap-changer

Номер: CN0101354954A
Принадлежит:

The invention relates to an on-load powerstat which is in angle connected by a high-voltage coil of a reactance type on-load tap switch; the invention is improved based on the on-load powerstat which is in star connected by the high-voltage coil of the reactance type on-load tap switch; the invention has the main improved points that the high-voltage coil of the reactance type on-load tap switch is adopted for angle connection; and the high-voltage coil adopts a full insulated structure. The on-load powerstat has the advantages that the powerstat can meet the requirements of few winding number of the voltage regulation coil and more voltage regulating levels on the low-voltage side and the angle connection of the high-voltage coil and the insulated levels of the upper end and the lower end are 220kV level; when the three-phase reactance type on-load tap switch operates in a bridge connection state or a non-bridge connection state, the on-load powerstat meets the voltage regulation of the ...

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23-04-2014 дата публикации

Dry-type smoothing reactor arrester light insulator counter lead-out structure

Номер: CN103743939A
Принадлежит:

The invention relates to a dry-type smoothing reactor arrester light insulator counter lead-out structure, and belongs to the technical field of power transmission and transformation. The technical scheme is that: one end of a counter (2) is connected with an arrester (1), and the other end is connected with an upper terminal box (5) via a metal flexible tube A (4). The upper terminal box (5) and a lower terminal box (8) are connected via a photoelectric insulator (7). The lower terminal box (8) is fixed on a supporting rack (12). A connecting terminal of a dry-type smoothing reactor (3) is connected with the counter (2). When the arrester is struck by lightning and high voltage is generated, the arrester is conducted, current passes through the counter, the counter starts to count, energy is released via the photoelectric insulator and a signal is also transmitted to the outside via the photoelectric insulator. The beneficial effects of the dry-type smoothing reactor arrester light insulator ...

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09-11-2011 дата публикации

Continuous wrapping and binding method for ultrahigh voltage converter transformer iron core column

Номер: CN0102237181A
Принадлежит:

The invention relates to a continuous wrapping and binding method for an ultrahigh voltage converter transformer iron core column, and belongs to the technical field of transformers. The invention adopts the technical scheme that: after being completely stacked, the iron cores are clamped by a clamping device and raised, a proper tensioning force of a binding belt is regulated through a binding machine, and an iron core column is semi-lapped to the specified thickness and height. The method has the advantages that: the proper tensioning force is regulated through the binding machine, and the binding belt is continuously semi-lapped to the specified thickness and height on the iron core column to meet the safety and the reliability of a converter transformer iron core stack; the method has the characteristics of good manufacturability, easiness in operation, low binding thickness, reduction of a binding space, uniform binding force, good electrode shape and the like; and pressure can be ...

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26-03-2014 дата публикации

Built-in magnetic conductive pressing plate structures of transformer

Номер: CN103680875A
Принадлежит:

The invention relates to built-in magnetic conductive pressing plate structures of a transformer and belongs to the technical field of transformer equipment. According to the technical scheme, each built-in magnetic conductive pressing plate structure comprises an insulating part (1), two magnetic conductive parts (2), a shielding ring (3) and an insulating paperboard (4), wherein the two magnetic conductive parts (2) are arranged on the two sides of the upper surface of the insulating part (1) respectively, the shielding ring (3) is arranged on the outer edge of the insulating part (1), and the insulating paperboard (4) is connected with the insulating part (1) in an adhesive mode. The number of the magnetic conductive pressing plate structures is two, and each magnetic conductive pressing plate structure is formed by combining the insulating part (1), the two magnetic conductive parts (2), the shielding ring (3) and the insulating paperboard (4). The two magnetic conductive pressing plate ...

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28-01-2009 дата публикации

Large-capacity double-body pressure-regulating phase-shifting transformator

Номер: CN0101354957A
Принадлежит:

The invention relates to a large-capacity dual-body voltage regulating phase-shift transformer which comprises a series transformer oil tank, an exciting transformer oil tank, a series transformer, an exciting transformer, a first resistance type on-load tap-changer with a first polarity selector, and a second resistance type on-load tap-changer with a second polarity selector. Each phase of the series transformer consists of a high voltage coil and a low voltage coil; and each phase of the exciting transformer consists of a high voltage coil, a phase-shift coil, and a voltage regulating coil. The transformer has the advantages that: the transformer controls the current passing through a line through the change of inphase voltage and controls a parallel electric system and the actual current of each parallel branch through the phase angle regulation of the phase-shift coil, thereby solving the problem of over current caused by transmission lines connected in parallel, and consequently bringing ...

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09-12-2015 дата публикации

Release sub of transferable moment of torsion

Номер: CN0204851091U
Принадлежит:

The utility model belongs to equipment for the oil gas field, concretely relates to release sub of transferable moment of torsion includes in proper order from top to bottom that top connection, jack catch connect and the lower clutch, and top connection lower part and jack catch connect upper portion and pass through threaded connection, and the jack catch connects lower part and lower clutch upper portion to be passed through the mode that the jack catch connects and connects, and the jack catch connects the inside sliding sleeve that is provided with, and the pin in running through the jack catch joint in proper order and stretching into the pipe wall of sliding sleeve is locked both, has sat up straight the steel ball on the sliding sleeve. This kind of release sub of transferable moment of torsion, the moment of torsion transmission of tubular column can be realized to the recess that connects through the jack catch and the cooperation of the lug of lower clutch, and separation about ...

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23-04-2014 дата публикации

Converter transformer valve side bushing test device

Номер: CN103743970A
Принадлежит:

The invention relates to a converter transformer valve side bushing test device, and belongs to the technical field of a converter transformer device. The technical scheme is that: the converter transformer valve side bushing test device comprises an ascending base A (2), an ascending base B (3), an electrode (4), paper pulp (5), an insulating piece (6), a supporting piece (7) and a fixing piece (8). The ascending base A (2) is fixed on the ascending base B (3). The external side of the electrode (4) is provided with the paper pulp (5). The electrode (4) and the paper pulp (5) are fixed via the insulating piece (6). The lower end of the electrode (4) is provided with the supporting piece (7) and fixed on the ascending base A (2) via the fixing piece (8). After the electrode is wrapped by the paper pulp, the electrode and the paper pulp are fixed by the insulating piece. The electrode is fixed in the ascending bases by the supporting piece and the fixing piece and a valve side bushing is ...

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26-03-2014 дата публикации

High-capacity rotating transformer structure

Номер: CN103680896A
Принадлежит:

The invention relates to a high-capacity rotating transformer structure, and belongs to the technical field of high-capacity rotating transformer devices. According to the technical scheme, a stator and a rotor of a motor are respectively provided with three-phase windings, a motor driving system (2) and a collector system (1) are further arranged in a high-capacity rotating transformer, the three-phase rotor windings (3) and a bus of the stator are connected with the collector system, the motor driving system is used for driving the rotor and the stator, and the high-capacity rotating transformer is arranged in a central symmetry mode by using a main driving shaft (5) as the axis. The high-capacity rotating transformer structure has the advantages that the position of the rotor relative to the stator can be adjusted by the motor driving system, the direction and the angle of power of the high-capacity rotating transformer can be controlled, the collector system is used for carrying out ...

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09-11-2011 дата публикации

Painting and de-noising method for ultrahigh voltage converter transformer

Номер: CN0102237179A
Принадлежит:

The invention relates to a painting and de-noising method for an ultrahigh voltage converter transformer, and belongs to the technical field of transformers. The invention adopts the technical scheme that: when iron core silicon steel plates of a transformer are totally superposed, an epoxy resin paint is coated at the edge parts of the silicon steel plates on the edges of temporarily tightened iron core columns and lower iron yoke silicon steel plates, and resin is seeped into gaps among the silicon steel plates in a depth of 20 to 30 millimeters because of capillarity; and after the resin is cured, the edges of the silicon steel plates can be connected together to effectively reduce the noise of an iron core. The painting and de-noising method disclosed by the invention has the beneficial effects that: the edges of the silicon steel plates are stuck together by adopting the method of coating the epoxy resin paint to the edge parts of the iron core silicon steel plates, so that the surface ...

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08-08-2023 дата публикации

Novel isolating switch

Номер: CN116564747A
Принадлежит:

The invention relates to the technical field of disconnecting switches, in particular to a novel disconnecting switch which comprises a driving mechanism, a base, L-shaped blocks movably arranged on the two sides of the base and an electric air pump arranged below the base. The opening and closing mechanism comprises a driving rod and a follow-up rod which are fixedly arranged at the upper end of the base, and a connecting plate arranged above the driving rod and the follow-up rod, and a buckle assembly is arranged on one side of the connecting plate. Therefore, the safety and timeliness of line maintenance are improved, and precious time is won for repairing the power transmission line and quickly recovering power on. The device is simple in operation, effectively avoids potential safety hazards caused by misoperation of irrelevant personnel, effectively protects constructors, improves the confidence of the constructors in construction operation, efficiently manages, updates and reconstructs ...

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09-03-2011 дата публикации

Large-capacity double-body pressure-regulating phase-shifting transformer

Номер: CN0101354957B
Принадлежит:

The invention relates to a large-capacity dual-body voltage regulating phase-shift transformer which comprises a series transformer oil tank, an exciting transformer oil tank, a series transformer, an exciting transformer, a first resistance type on-load tap-changer with a first polarity selector, and a second resistance type on-load tap-changer with a second polarity selector. Each phase of the series transformer consists of a high voltage coil and a low voltage coil; and each phase of the exciting transformer consists of a high voltage coil, a phase-shift coil, and a voltage regulating coil. The transformer has the advantages that: the transformer controls the current passing through a line through the change of inphase voltage and controls a parallel electric system and the actual current of each parallel branch through the phase angle regulation of the phase-shift coil, thereby solving the problem of over current caused by transmission lines connected in parallel, and consequentlybringing ...

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23-04-2014 дата публикации

Extra-high voltage converter transformer axial four-combined conductive wire structure

Номер: CN103745767A
Принадлежит:

The invention relates to an extra-high voltage converter transformer axial four-combined conductive wire structure, and belongs to the technical field of an extra-high voltage converter transformer device. The technical scheme is that: the structure comprises conductive wires (1), paint films (2), a paper-parceling insulation A (3), a paper-parceling insulation B (4), a paraffin (5) and a structure body (6). The structure body (6) is composed of four conductive wires (1) which are parallel arranged and then externally wrapped with the paper-parceling insulation B (4) so that an integrated whole is formed. One side surface is provided with the paraffin (5). The external side of each conductive wire (1) is provided with the paint film (2) and then externally wrapped with the paper-parceling insulation A (3). Each conductive wire (1) is a flat copper wire, and each paint film (2) is an epoxy resin paint film. Beneficial effects of the structure are that: the number of the conductive wires ...

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15-12-2010 дата публикации

Large capacity single body phase angle regulator

Номер: CN0101419861B
Принадлежит:

The invention relates to a large-capacity single-body phase-angle regulator. The phase-angle regulator adopts a single-body structure; the arrangement sequences of the loops of each phase from a core limb to the outside are as follows in sequence: a first pressure regulating loop, a basic loop and a second pressure regulating loop; the first pressure regulating loops and the second pressure regulating loops of each phase are respectively connected to the corresponding vacuum loaded pressure regulating tapping switches of each own; the same name terminals of the first pressure regulating loopsand the second pressure regulating loops of each phase are respectively connected with the positive switching positions and the negative switching positions of the corresponding vacuum loaded pressure regulating tapping switches of each own. The large-capacity single-body phase-angle regulator has the beneficial effects that the capacity of the phase-angle regulator is large and below 600MVA; themanufacture ...

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