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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 15. Отображено 15.
12-05-2023 дата публикации

Method for proofreading elongation of single-stand temper mill unit

Номер: CN116099879A
Принадлежит:

The invention discloses a single-stand temper mill elongation correction method. The method comprises the following steps: selecting strip steel, marking the strip steel, and remarking information for tracking; an elongation value is preset according to the elongation value required by the process technology; and a measured value is recorded to calculate an elongation deviation value, and the laser velocimeter is corrected. According to the single-stand temper mill elongation correction method, measurement correction parameters can be provided for the laser velocimeter to correct the single-stand temper mill elongation, calculation is carried out by using dotting area system feedback data, manual measurement is not needed, automatic correction is achieved, and the labor cost is reduced; and calculation is carried out after the dotting area is flattened, and the average value calculation accuracy is higher. The method has better effects on execution cost and accuracy.

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02-06-2023 дата публикации

Visual temperature control phase change plugging tester and test method

Номер: CN116202928A
Принадлежит:

The invention discloses a visual temperature control phase change plugging tester and a testing method.The tester comprises a supporting device, a stirring device, a pressurizing device and a collecting container, the collecting container is arranged below the supporting device, a bottom sealing cover is installed at the upper end of the supporting device, and a transparent graduated drum is arranged at the upper end of the bottom sealing cover in a sealed mode; the bottom of the transparent graduated drum is provided with a central liquid discharge pipe which penetrates through the bottom sealing cover and extends into the collecting container; a pressure sleeve is sealed on the outer side of the bottom sealing cover, a containing cavity is formed between the pressure sleeve and the transparent graduated drum, a top sealing cover is installed at the upper end of the pressure sleeve, a stirring device, a liquid guide pipe and an air guide pipe are installed on the top sealing cover, one ...

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05-02-2014 дата публикации

High-concentration SBR (styrene butadiene rubber) modified emulsified asphalt and preparation method thereof

Номер: CN103554930A
Принадлежит:

The invention discloses a high-concentration SBR (styrene butadiene rubber) modified emulsified asphalt which is composed of the following components in percentage by mass: 65-80% of asphalt, 2-6% of SBR latex, 1.2-3.5% of emulsifier and a proper amount of water. The invention also discloses a preparation method of the SBR modified emulsified asphalt. The modified emulsified asphalt has high-concentration solid content, and can be diluted by water into different concentrations according to the construction demands in the transportation process from the production plant to the construction site, thereby greatly reducing the storage space and transportation cost and enhancing the economic benefit.

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30-12-2015 дата публикации

Back pressure is location structure for valve

Номер: CN0204920902U
Принадлежит:

The utility model provides a back pressure is location structure for valve, including the valve body, offered fluid passage along the axial of valve body, the case is installed to fluid passage's middle part inner wall, and the fluid passage of case upper end is that the longitudinal section is the stress dispersion toper section that the length trapezoidal and upper base is greater than the length of going to the bottom, has offered the annular groove on the fluid passage's between stress dispersion toper section and case the inner wall, is equipped with round collar stop in the annular groove, the circle collar stop adopts two circular bead forms, comprises last circular bead and lower circular bead, and the diameter of lower circular bead is greater than the diameter of circular bead, and lower circular bead is laid in the annular groove, and the outer wall cover of going up the circular bead is equipped with the jump ring. The utility model provides a back pressure is location structure ...

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23-05-2023 дата публикации

Petroleum drilling bit rotating speed measuring system

Номер: CN116146169A
Принадлежит:

The invention provides a petroleum drilling drill bit rotating speed measuring system which comprises a drill bit main body structure and a circuit structure, and the circuit structure is fixed in the drill bit main body structure and measures required parameters of a drill bit of the drill bit main body structure. The drill bit body structure comprises a lower shell, a circuit framework and an upper connector, the lower end of the lower shell is connected with a drill bit, the upper end of the lower shell is connected with the upper connector, and the circuit framework is located in a cavity formed by the lower shell and the upper connector. The rotation speed measuring system for the petroleum drilling bit can work for a long time, and replacement of tripping is reduced. The device is compact in structure, safe, reliable, convenient to disassemble and assemble and easy to maintain.

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30-12-2015 дата публикации

Oil drilling tool is with sealed helicitic texture in face of cylinder

Номер: CN0204920824U
Принадлежит:

The utility model provides an oil drilling tool is with sealed helicitic texture in face of cylinder, including internal thread structure and external screw thread structure, the external screw thread structure includes the external taper screw thread, the end of external taper screw thread is the directly section of end of external screw thread, the external screw thread circular bead has been seted up in the drilling tool main part, external screw thread cylinder seal section between the root of external screw thread circular bead and external taper screw thread, the internal thread structure includes the internal taper screw thread, the end of internal taper screw thread is internal thread cylinder seal section, the bottom surface of internal thread cylinder seal section is internal thread circular bead face, the root of internal taper screw thread is an internal thread root circular bead. Original API series screw thread, its sealing method rely on the circular bead sealed, and be unable ...

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08-04-2021 дата публикации

Circulating system and a method for continuous downhole cooling of high-temperature drilling fluid

Номер: US20210102441A1
Принадлежит: SOUTHWEST PETROLEUM UNIVERSITY

The invention discloses a circulating system and a method for continuous downhole cooling of high-temperature drilling fluid. The circulating system includes a cooling water tank, a cooling water injection pump, a plurality of U-shaped pipes, a liquid nitrogen cooling tank, a spiral pipe, a cooling water return pump and a return pipeline. The U-shaped pipe is fixed in an unsealed bond cement gap between outer and inner casings, and two ends are respectively connected with output end of the cooling water injection pump and the spiral pipe. The spiral pipe is disposed in the liquid nitrogen cooling tank; input and output ends of the cooling water return pump are respectively connected with the spiral pipe and the return pipeline; one end of the return pipeline is disposed in the cooling water tank; input end of the cooling water injection pump is connected with the cooling water tank by a pipe. 1. A circulating system for continuous downhole cooling of high-temperature drilling fluid , comprising:a cooling water tank, a cooling water injection pump, a plurality of U-shaped pipes, a liquid nitrogen cooling tank, a spiral pipe, a cooling water return pump and a return pipeline;wherein the U-shaped pipes are fixed in an unsealed bond cement gap between an outer casing and an inner casing, and two ends of each of the U-shaped pipes are respectively connected with an output end of the cooling water injection pump and the spiral pipe; the spiral pipe is disposed in the liquid nitrogen cooling tank; an input end and an output end of the cooling water return pump are respectively connected with the spiral pipe and the return pipeline; one end of the return pipeline is disposed in the cooling water tank; an input end of the cooling water injection pump is connected with the cooling water tank by a pipe.2. The circulating system for continuous downhole cooling of high-temperature drilling fluid according to claim 1 , wherein the U-shaped pipe comprises a cooling water ...

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05-05-2010 дата публикации

Drilling tool structure with three stabilizers

Номер: CN0101701506A
Принадлежит:

The invention relates to a drilling tool structure with three stabilizers, in particular to a drilling tool structure of a drilling well, comprising a single bent screw stabilizer, a stabilizer, a tail-end stabilizer, a drill bit, a single bent screw, a short drill collar and a non-magnetic drill stem, wherein the stabilizer is arranged between the short drill collar and the non-magnetic drill stem; and the upper end of the non-magnetic drill stem is connected with the tail-end stabilizer. The invention provides a four-in-one drilling tool structure with three centralizers in such a way of enhancing the centralizing effect and reducing the deflection, solves the problem that the well deflection is increased along with the obliquity of a stratum because the upper part of the traditional drilling tool assembly is lack of a stabilizing mechanism, meets the requirement of well drilling construction tasks of drilling second sections to well drilling all well sections for a straight well and ...

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20-06-2023 дата публикации

Throttling direct-pushing controllable variable-diameter stabilizer for petroleum drilling, variable-diameter method and control method

Номер: CN116265691A
Принадлежит:

The invention relates to the technical field of petroleum drilling, in particular to a throttling direct-pushing controllable variable-diameter stabilizer for petroleum drilling and a variable-diameter method and a control method.The stabilizer comprises an outer shell with the two ends penetrating through the interior and being hollow, a filtering short section and an isolating short section are arranged in a hollow cavity, and an executing mechanism and a plurality of variable-diameter parts are arranged on the outer shell; the executing mechanism is installed in the portion, between the filter short section and the outer shell, of the shell, the multiple reducing parts are installed in the portion, between the isolation short section and the outer shell, of the shell, and a pressure applying cavity is formed between the isolation short section and the outer shell. The executing mechanism can convey fluid flowing through the filter nipple into the pressure applying cavity to extrude the ...

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18-02-2015 дата публикации

Road prime coat oil and preparation method thereof

Номер: CN104356655A
Принадлежит:

The invention provides road prime coat oil which comprises components in percentage by mass as follows: 50%-58% of mildoxidation slurry oil, 0.5%-2.5% of an emulsifier and the balance of water. The invention further discloses a preparation method of the road prime coat oil. The road prime coat oil can meet the technical requirements for emulsified asphalt prime coat oil for routine roads while the production cost can be lower than the emulsified asphalt prime coat oil by 20%.

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28-07-2023 дата публикации

Fabricated bridge pile foundation mechanical connection structure and construction method

Номер: CN116497804A
Принадлежит:

The invention relates to the technical field of assembly type bridge construction, in particular to an assembly type bridge pile foundation mechanical connecting structure which is characterized by comprising a lower assembly and an upper assembly, a lower first steel plate in the lower assembly is of a disc structure, and an embedded steel plate is mounted and connected to the lower end face of the lower first steel plate in an attached mode; the first steel plate and the pre-buried steel plate form a lower connecting piece, the anchor bar sleeve is pre-buried in the pre-buried steel plate, the lower end of the anchor bar sleeve is lifted out of the lower end face of the pre-buried steel plate, the lower connecting piece is provided with a through hole rotating in the axial direction, the main bar lower connector is arranged in the through hole, and the upper end of the pile foundation main bar is connected to the main bar lower connector. The lower component and the upper component are ...

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11-07-2023 дата публикации

Corollary equipment for environment-friendly drilling of soil layer

Номер: CN116411799A
Принадлежит:

The invention belongs to the technical field of petroleum drilling devices, and particularly provides corollary equipment for environment-friendly drilling of a soil layer, which comprises a drill bit, a lifting mechanism, a drill column, a lifting steel wire rope and a winch, the lower part of the drill column is connected with the drill bit, the lifting mechanism is sleeved outside the drill column, and the lower part of the lifting mechanism is sleeved outside the upper part of the drill bit; the problems that in the prior art, when drilling is conducted without drilling fluid, drilling equipment is high in cost, low in efficiency, small in drilling depth and irregular in well hole are solved, dry type rotary drilling operation is achieved, and the drilling equipment is low in cost, high in efficiency, large in drilling depth and regular in well hole.

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30-06-2023 дата публикации

Well drilling construction difficulty evaluation method based on analytic hierarchy process

Номер: CN116362447A
Принадлежит:

The invention belongs to the technical field of oil and gas field drilling, and particularly relates to a drilling construction difficulty evaluation method based on an analytic hierarchy process. The invention discloses a drilling construction difficulty evaluation method based on an analytic hierarchy process. The method comprises the following steps: collecting main control parameters influencing the drilling construction difficulty; constructing a hierarchical structure model for drilling construction difficulty evaluation; constructing a judgment matrix; calculating a relative weight value of each parameter representing a drilling construction difficulty main control parameter in the judgment matrix; according to the obtained relative weight values, layer-by-layer upward cumulative summation is carried out, a single well difficulty coefficient is obtained, and then single well drilling construction difficulty evaluation is carried out. By establishing the hierarchical structure model ...

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05-02-2014 дата публикации

Low-strength and high-grade road asphalt and preparation method thereof

Номер: CN103554926A
Принадлежит:

The invention discloses low-strength and high-grade road asphalt. The low-strength and high-grade road asphalt comprises the following components in parts by weight: 25 to 75 parts of vacuum residue, and 25 to 75 parts of one or more of deoiled asphalt, extract oil from solvent refining, and unimproved hard vacuum residue, wherein the vacuum residue is the vacuum residue prepared by introducing catalytic oil into the bottom of an atmospheric distillation column and then transferring into a reduced-pressure distillation column together with atmospheric residue to improve by reduced-pressure distillation. The invention also discloses a preparation method of the low-strength and high-grade road asphalt. By adopting the low-strength and high-grade road asphalt, the problem due to the dependence on types of crude oil can be solved, and the problem of the prior art that the high-grade road asphalt produced by catalytic slurry oil is poor in ageing resistance also can be solved; the low-strength ...

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18-02-2015 дата публикации

High-concentration colorful emulsified asphalt and preparation method thereof

Номер: CN104356588A
Принадлежит:

The invention provides high-concentration colorful emulsified asphalt which comprises high aromatic oil, petroleum resin, a modifier, an emulsifier, a coloring agent and water, wherein the mass ratio of the high aromatic oil to the petroleum resin is in the range of (6:4)-(7:3). The invention further discloses a preparation method of the high-concentration colorful emulsified asphalt. The colorful emulsified asphalt contains high-concentration solids and can be diluted into different concentrations with water for use according to construction demands when transported to a construction field from a production factory, the storage space and the transportation cost are greatly reduced, and the economic benefit is increased.

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