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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 11. Отображено 11.
29-08-2023 дата публикации

High-ammonia-nitrogen, high-COD and high-salt industrial tail water treatment method

Номер: CN116655135A
Принадлежит:

The invention discloses a high-ammonia-nitrogen, high-COD and high-salt industrial tail water treatment method which sequentially comprises the following steps: adjusting the pH value of wastewater to be alkaline by using solid alkali, adding an accelerant, performing air stripping and absorption, and performing circular treatment to reduce the ammonia nitrogen content to be below 40mg/L, so as to obtain the high-ammonia-nitrogen, high-COD and high-salt industrial tail water. The wastewater subjected to ammonia nitrogen treatment is subjected to electrolytic flotation treatment and iron-carbon micro-electrolysis treatment in sequence, the pH of the wastewater subjected to iron-carbon micro-electrolysis is adjusted to be acidic through sulfuric acid, a ferrous sulfate solution with the concentration of 20 wt%, hydrogen peroxide with the concentration of 50 wt% and a Fenton catalyst FL500 are added, Fenton reaction oxidation treatment is conducted, and the wastewater subjected to iron-carbon ...

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15-04-2015 дата публикации

Preparation method and application of high-temperature corrosion inhibitor double fluorocarbon imidazoline

Номер: CN104513205A
Принадлежит:

The invention relates to a preparation method of high-temperature corrosion inhibitor double fluorocarbon imidazoline. The preparation method comprises the following preparation steps: dissolving perfluorocarboxylic acid and diethylenetriamine in a toluene water-carrying agent, adding a catalyst and performing azeotropic dehydration and high-temperature dehydration to obtain single fluorocarbon imidazoline, dissolving the single fluorocarbon imidazoline in DMSO (Dimethylsulfoxide), adding sodium hydroxide, slowly dropwise adding dibromoalkane, cooling a reaction coolant to a room temperature after reaction, pouring ice water to perform oscillation and extraction, discarding a water phase, combining an organic phase, drying anhydrous sodium sulfate and removing an organic solvent by using a rotary evaporator to obtain the high-temperature corrosion inhibitor double fluorocarbon imidazoline. After the high-temperature corrosion inhibitor double fluorocarbon imidazoline, Mannich base quaternary ...

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26-08-2015 дата публикации

Liquid medicine for online cleaning of air separation workshop appliances and application method thereof

Номер: CN104860403A
Принадлежит:

The invention relates to liquid medicine for online cleaning of air separation workshop appliances and an application method of the liquid medicine. The liquid medicine for online cleaning of the air separation workshop appliances comprises organic acid, corrosion inhibitors, penetrant, antifoaming agents and water. A method for online cleaning of the air separation workshop appliances through the liquid medicine comprises the technological steps that a cleaning system of a cleaning liquid storage tank and a cleaning multi-stage pump is established, water scale is cleaned away, and the system is recovered. The liquid medicine for online cleaning of the air separation workshop appliances is stable in chemical property, good in slow-release effect and high in scale dissolving capacity. The method for online cleaning of the air separation workshop appliances through the liquid medicine is simple in technology and low in cost. The corrosion hazard cannot be caused to the air separation workshop ...

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23-06-2023 дата публикации

High-precision control method and system for flow of electronic expansion valve

Номер: CN116294313A
Принадлежит:

The invention discloses a high-precision control method and system for the flow of an electronic expansion valve. The high-precision control method for the flow of the electronic expansion valve comprises the steps that the opening increment calculation amount of the electronic expansion valve and the opening output amount of an electronic expansion valve controller in the last sampling period are obtained; determining the opening degree output calculation amount of the electronic expansion valve controller in the current sampling period according to the opening degree increment calculation amount of the electronic expansion valve and the opening degree output amount of the electronic expansion valve controller in the previous sampling period; according to the opening degree output calculation amount of the electronic expansion valve controller in the current sampling period, the proportional adjustment duty ratio is determined; and the actual opening degree output quantity of the electronic ...

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22-04-2015 дата публикации

Degreasing agent for stainless steel, carbon steel and petrochemical pipelines

Номер: CN104532273A
Принадлежит:

The invention discloses a degreasing agent for stainless steel, carbon steel and petrochemical pipelines. The degreasing agent is prepared by mixing and dissolving p-benzene methane sulfonic acid, sodium gluconate, alkyl polyglycoside APG, sodium hydroxide, nekal and water. The degreasing agent is directly sprayed to the surface of the stainless steel or carbon steel, or is used for soaking the petrochemical pipelines and chemical plant oxygen (or nitrogen) pipelines after being diluted in use to ensure that the grease on the surfaces of the stainless steel, carbon steel and petrochemical pipelines and the chemical plant oxygen (or nitrogen) pipelines can be completely removed. Compared with the prior art, the degreasing agent disclosed by the invention has the advantages of high degreasing efficiency, green and environment-friendly raw material source, low alkalinity, high-temperature resistance and hard water resistance, cannot cause inter-crystalline corrosion to the stainless steel ...

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16-05-2023 дата публикации

Method and device for controlling opening degree of electronic expansion valve of refrigeration equipment

Номер: CN116123770A
Автор: KANG DONGPING
Принадлежит:

The invention discloses an opening degree control method and device for an electronic expansion valve of refrigeration equipment. The electronic expansion valve opening control method of the refrigeration equipment comprises the steps that the superheat degree of an evaporator outlet of the refrigeration equipment is obtained; judging whether the evaporator outlet superheat degree meets a preset condition or not; if yes, the current controlled quantity controlled by the opening degree of the electronic expansion valve is switched to the temperature of the temperature control chamber, and the opening degree of the electronic expansion valve is adjusted with the temperature of the temperature control chamber as the controlled quantity; and if not, the current controlled quantity controlled by the opening degree of the electronic expansion valve is switched to the superheat degree of the outlet of the evaporator, and the opening degree of the electronic expansion valve is adjusted with the ...

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11-08-2023 дата публикации

Rapid and stable control method for compartment temperature of refrigerating system

Номер: CN116576600A
Принадлежит:

The invention discloses a rapid and stable control method for the chamber temperature of a refrigerating system. The rapid and stable control method for the chamber temperature of the refrigerating system comprises the steps that the current target temperature of a temperature control chamber and the actual temperature of the temperature control chamber are obtained; the current temperature deviation of the temperature control chamber is obtained according to the current target temperature of the temperature control chamber and the actual temperature of the temperature control chamber; and the current control mode of the electronic expansion valve of the temperature control chamber is determined according to the current temperature deviation and the preset temperature deviation of the temperature control chamber, and the opening degree of the electronic expansion valve is regulated and controlled according to the current control mode. Through the method, the chamber temperature can be rapidly ...

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18-04-2023 дата публикации

Control method and device of temperature adjusting system and environment test box

Номер: CN115981389A
Принадлежит:

The embodiment of the invention discloses a control method and device of a temperature adjusting system and an environment test box. The temperature adjusting system comprises a constant temperature subsystem and a cooling subsystem, and the constant temperature subsystem and the cooling subsystem are both used for adjusting the temperature of the environment test box; the control method of the temperature adjusting system comprises the steps that the surrounding environment temperature and the temperature adjusting requirement of the environment test box are obtained; if the temperature adjusting requirement is the cooling requirement, at least one of the constant temperature subsystem and the cooling subsystem is controlled to work according to the surrounding environment temperature and the preset target temperature; if the temperature adjusting requirement is a constant temperature requirement, the constant temperature subsystem or the cooling subsystem is controlled to work according ...

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11-04-2023 дата публикации

Smooth temperature control method for environmental test box with electronic expansion valve

Номер: CN115951731A
Принадлежит:

The invention discloses a temperature smooth control method for an environmental test box with an electronic expansion valve. Whether the opening degree of the electronic expansion valve needs to be adjusted or not can be automatically judged by judging whether the opening degree output timer of the electronic expansion valve is larger than or equal to the target adjusting period of the opening degree output quantity or not. When the opening degree of the electronic expansion valve is automatically judged to need to be adjusted, the opening degree of the electronic expansion valve is not directly switched to the set target opening degree, the target opening degree subprogram of the electronic expansion valve is called, and the opening degree output quantity of the controller is adjusted according to the target opening degree subprogram, so that the opening degree of the electronic expansion valve is adjusted. Compared with the prior art, whether the opening degree of the electronic expansion ...

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05-05-2023 дата публикации

Dual-compressor system control method and storage medium

Номер: CN116067057A
Автор: KANG DONGPING
Принадлежит:

The embodiment of the invention discloses a double-compressor system control method and a storage medium. The double-compressor system comprises a first compressor, a second compressor and a control module. The double-compressor system control method comprises the steps that the control module determines the working mode of the double-compressor system; the working modes comprise a cooling mode, a heating mode and a constant temperature mode; the control module judges the start-stop mode of the double-compressor system according to the working mode and the start condition; the start-stop mode comprises a first start mode, a second start mode, a third start mode, a fourth start mode and a fifth start mode; the control module controls the first compressor and/or the second compressor to refrigerate according to the start-stop mode and the operation condition; or the control module controls the first compressor and/or the second compressor to refrigerate according to the start-stop mode; the ...

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01-08-2023 дата публикации

Control method, device and system of multi-channel cooling-water machine and storage medium

Номер: CN116518638A
Принадлежит:

The invention discloses a control method, device and system of a multi-channel cooling-water machine and a storage medium. The control method comprises the steps of obtaining a current state parameter and a target state parameter of a branch pipeline; determining a current regulation and control mode according to a relative size relationship between the current state parameter and the target state parameter, wherein a plurality of preset PID parameter groups are preset in each regulation and control mode; and selecting at least one target PID parameter group from the preset PID parameter groups in the current regulation and control mode, and regulating and controlling the current state parameter according to the at least one target PID parameter group until the current state parameter is equal to the target state parameter. By the adoption of the scheme, in the working process of the cooling-water machine, the PID adjusting parameters matched with the current states of all the branch pipelines ...

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