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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 16. Отображено 16.
04-07-2023 дата публикации

Polyvinylidene fluoride and epoxy organic nanoparticle mixed matrix ultrafiltration membrane and preparation method thereof

Номер: CN116371197A
Автор: HUA HELIN, MAO XUHUI, ZENG XIANG, YANG SHENGYUN, LI NA, WU DAN, GAO RUI, HU MAOHUA
Принадлежит:

The invention discloses a polyvinylidene fluoride and epoxy organic nanoparticle mixed matrix ultrafiltration membrane and a preparation method thereof.The preparation method comprises the following steps that A, additives are added into an N, N-dimethylacetamide solvent, the additives comprise polyethyleneimine, polyethylene glycol diglycidyl ether and dibutyl phthalate, and the N, N-dimethylacetamide is added into the N, N-dimethylacetamide solvent; reacting at 70 to 90 DEG C for 18 to 48 hours to obtain a solvent A; b, adding polyvinylidene fluoride into the solvent A, and obtaining a membrane casting solution B after the polyvinylidene fluoride is completely dissolved; and C, uniformly coating a polyester non-woven fabric with the membrane casting solution B by using a scraper, staying in the air, putting into a coagulating bath to form a membrane, and soaking the membrane in pure water to obtain a finished product. Epoxy organic nanoparticles generated by a cross-linking reaction of ...

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Номер записи: 1
24-12-2014 дата публикации

Immersed type fiber enhanced hollow fiber membrane module

Номер: CN104226117A
Автор: HUA HELIN, HU MAOHUA, XU GANG
Принадлежит:

The invention discloses an immersed type fiber enhanced hollow fiber membrane module. The immersed type fiber enhanced hollow fiber membrane module comprises an upper water collection end, a lower water collection end, two water collection square tubes, a membrane sheet, a water collection opening, soft protection layers and sealing layers, wherein the upper water collection end and the lower water collection end are oppositely arranged in parallel; the two water collection square tubes are communicated with the left ends and the right ends of the upper water collection end and the lower water collection end, respectively; the upper and lower ends of the membrane sheet are communicated with the upper water collection end and the lower water collection end, respectively; the water collection opening is formed in the upper water collection end or the lower water collection end and is used for water discharging of the membrane module; the upper and lower sealing layers are used for packaging ...

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Номер записи: 2
11-08-2023 дата публикации

Method for repairing chromium-polluted soil by using steam reinforced dihydric alcohol

Номер: CN116571558A
Автор: MAO XUHUI, HUA HELIN, ZENG XIANG, YANG SHENGYUN, LI NA, WU DAN, GAO RUI, HU MAOHUA
Принадлежит:

The invention discloses a method for repairing chromium-polluted soil by using steam reinforced dihydric alcohol. The method comprises the following steps: conveying a mixed solution of small-molecule dihydric alcohol and water to a steam generator through a metering pump; dihydric alcohol mixed steam generated by the steam generator is injected into a target soil layer, and hexavalent chromium in the soil is reduced; pure steam is injected into the target soil layer, and residual dihydric alcohol and oxidation product steam water of the dihydric alcohol are recycled after being cooled. According to the method, the mass transfer capacity of propylene glycol in the soil can be improved and the reduction capacity of dihydric alcohol to hexavalent chromium can be enhanced by utilizing steam, and the method is simple, efficient and short in remediation period and can achieve efficient in-situ remediation of the hexavalent chromium contaminated soil.

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Номер записи: 3
16-11-2011 дата публикации

Composite hollow fiber film preparation method based on on-line braiding-phase transfer moulding

Номер: CN0102240509A
Автор: GANG XU, HELIN HUA, XU GANG, HUA HELIN
Принадлежит:

A composite hollow fiber film preparation method based on an on-line braiding-phase transfer moulding. The method comprises the following steps: a high-molecular organic membrane material is used as a composite layer material, and the high-molecular organic membrane material, a solvent and an additive are mixed according to a mass ratio, stirred and dissolved uniformly to be prepared into a composite layer casting solution of a composite hollow fiber membrane; textile fabrics are braided into a supporting layer of a fiber braiding pipe through on-line braiding of a braiding machine; supporting layer of a fiber braiding pipe is braided along a core by traction of a traction device of a pultrusion machine and with the core being fixed, and enters into a die through a front end of the core; meanwhile, the composite layer casting solution is dipped in a composite layer casting solution dipping zone in a front end of the die (the composite layer casting solution is injected into a die cavity ...

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Номер записи: 4
28-05-2014 дата публикации

High-efficiency solid-liquid separation device

Номер: CN103819022A
Автор: WEI LI'AN, HUA HELIN, HU RUNXIA
Принадлежит:

The invention discloses a high-efficiency solid-liquid separation device, which comprises a frame, a cycle water pump, a control electricity case, a backwashing column and a membrane filtration pipe assembly; the cycle water pump and a backwashing pump are arranged at the bottom of the frame, and are connected to the backwashing column arranged on the frame and the membrane filtration pipe assembly through a pipeline, a filtering water outlet regulating valve, a backwashing valve, a reflux valve and a cycle water return valve are arranged on the pipeline capable of connecting the membrane filtration pipe assembly and the cycle water pump; a gas regulating valve is arranged on the pipeline capable of connecting the backwashing column; a contributing water flowmeter is arranged on the contributing water pipe over the backwashing column, and the control electronic case is arranged at the upper part of the frame. According to the invention, deposition and prefiltration are not required, filtering ...

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Номер записи: 5
02-07-2003 дата публикации

Concentrated fresh water circulation electro dialyzer

Номер: CN0001426970A
Автор: WU GUANGXIA, HUA HELIN, WANG ZHENGJUN, GUANGXIA WU, HELIN HUA, ZHENGJUN WANG
Принадлежит:

An enriched fresh water circulating rolling-type electric dialyzer with electrode rolled along with a membrane features that the electrode is embedded in ion exchange membrane to form a special membrane stack electrode, the anion-cation exchange membrane and the insulating isolative netted plate constitute a U-shaped fresh water channel, an enriched water channel is between the membrane stack electrode and fresh water channel, and the fresh water collecting-distributing tube is used as a center to roll into a cylinder. This apparatus can use several serial cylinders.

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Номер записи: 6
13-08-2014 дата публикации

Method for producing orange-textured and sand-textured powder coatings by using double-screw extruder

Номер: CN103978661A
Автор: CHEN JIANQING, HUA HELIN
Принадлежит:

The invention discloses a method for producing orange-textured and sand-textured powder coatings by using a double-screw extruder. In a melt extrusion step of a production process of the powder coatings, the double-screw extruder is adopted; each of screws of the double-screw extruder comprises an engagement section, a connecting section and a transmission section, wherein the engagement section is connected onto the transmission section through the connecting section; double screws of the extruder are engaged together through the engagement sections; each engagement section is a whole formed by fixedly connecting a plurality of elliptic-cylinder engagement gaskets, and an installation angle of two adjacent engagement gaskets in the anti-clockwise direction is respectively set as 90 DEG, 60 DEG and 30 DEG. Through changing the installation angle of the engagement gaskets on the double screws inside the double-screw extruder, the powder coatings with special surfaces are produced; the surface ...

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Номер записи: 7
06-01-2016 дата публикации

Sealing connecting structure of MBR membrane module

Номер: CN0204942827U
Автор: HUA HELIN, HU MAOHUA, XU GANG
Принадлежит:

The utility model discloses a sealing connecting structure of MBR membrane module, including a membrane shell and an at least outlet pipe, seted up on the outer wall of membrane shell with the at least delivery port of outlet pipe assorted, the afterbody of outlet pipe is inserted to establish and is fixed in the delivery port, overlaps on the outer wall of outlet pipe afterbody to be equipped with an at least sealing washer, the sealing washer be located between the inner wall of outer wall and the delivery port of outlet pipe afterbody for clearance between the outer wall of closed outlet pipe and the inner wall of delivery port. The utility model discloses in because the shape phase -match of the shape of outlet pipe afterbody and delivery port, consequently the assembly that can accomplish outlet pipe and membrane shell in the delivery port is established to direct insert the outlet pipe, the sealing washer can effectual closed outlet pipe with the membrane shell between the clearance ...

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Номер записи: 8
20-10-2010 дата публикации

Preparation method of tubular porous fiber molecular sieve membrane

Номер: CN0101862603A
Автор: HELIN HUA, NA LI, LIAN WEI, JUNCHAO ZHANG, HUA HELIN, LI NA, WEI LIAN, ZHANG JUNCHAO
Принадлежит:

The invention relates to a preparation method of a tubular porous fiber molecular sieve membrane, which comprises the following steps that: taking an aluminum source, a sodium source, silica or silica sol and water as the raw materials and the molar ratio of the raw materials in a reaction system is as follows: silica: aluminum source: sodium source:water=1 to 10:1 to 8:1 to 8:80 to 1000, soaking a tubular porous fiber support body in the reaction system, reacting at the temperature of 50 to 130DEG C, and crystallizing for 3 to 40h. The preparation method has the advantages that the preparation process is simple, a plurality of contacts are arranged between an inorganic material braided hose support layer and a molecular sieve membrane composite layer and the combination is tight. Through the control of the preparation conditions, the separation capability of the prepared tubular porous fiber molecular sieve membrane is significant.

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Номер записи: 9
18-11-2009 дата публикации

Method for preparing pipe-type composite hollow fiber membrane

Номер: CN0101579604A
Автор: HUA HELIN, LI NA, WEI LIAN, ZHANG WEIPIN, HELIN HUA, NA LI, LIAN WEI, WEIPIN ZHANG
Принадлежит:

A method for preparing a pipe-type composite hollow fiber membrane is characterized in that the preparation method comprises the following steps of: (1) mixing a high polymer organic membrane material, a solvent and an additive by the mass ratio of 10-30:50-90:1-20; stirring and dissolving the mixture uniformly to prepare the composite layer casting solution of a pipe-type composite hollow fiber membrane; and (2) drawing an inorganic material weaving pipe with the outside wrapped by the high polymer organic membrane material at the temperature of 20-90 DEG C, the pressure of 0-0.5MPa and speed of 0.2-5m/min to pass by a solidification liquid at the temperature of 20-50 DEG C, thus preparing the pipe-type composite hollow fiber membrane. The method has the technical effects that the combination is compact; and by controlling the preparation conditions of the pipe-type composite hollow fiber membrane, the prepared pipe-type composite hollow fiber membrane has the following parameters that ...

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Номер записи: 10
06-01-2016 дата публикации

Sectional type membrane shell structure of MBR membrane module

Номер: CN0204939061U
Автор: HUA HELIN, HU MAOHUA, XU GANG
Принадлежит:

The utility model discloses a sectional type membrane shell structure of MBR membrane module, include a nematoid base member and fix the at least joint at the base member tip, the base member be used for installing hollow fiber membrane, be equipped with in the base member with the pipeline that catchments of hollow fiber membrane's inner chamber intercommunication, the joint in be equipped with with the switching pipeline that the pipeline that catchments is linked together, be equipped with on the outer wall of joint with switching pipeline delivery port that be linked together, that be used for connecting the outlet pipe. The utility model discloses the mesolamella shell splices fixed forming by nematoid base member with connecting, the base member can be tailor and got from this by linear section bar, connect and then to adopt conventional shooting technique or other forming technology to make, can make things convenient for, the quick market demand of answering changes the length and ...

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Номер записи: 11
25-08-2023 дата публикации

Electrochemical method for in-situ remediation of bottom mud sediment of polluted water body

Номер: CN116639855A
Автор: MAO XUHUI, HUA HELIN, ZENG XIANG, YANG SHENGYUN, LI NA, WU DAN, GAO RUI, HU MAOHUA
Принадлежит:

The invention discloses an electrochemical method for in-situ remediation of bottom mud sediments of a polluted water body, which comprises the following remediation steps: completely inserting an electrode into bottom mud through an engineering method, and applying direct current with certain intensity to the electrode, so as to promote release of nitrogen, phosphorus, sulfur elements and organic matters in the bottom mud sediments; the main mechanism of pollution release of the endogenous pollutants of the bottom mud comprises anodic oxidation, oxygen oxidation, air flotation action and resistance heating for promoting release of the pollutants from the bottom mud and anodic oxidation action; and treating the endogenous pollutants released into the overlying water by adopting a water treatment method. Compared with methods of sludge dredging, chemical reagent adding and the like, the method has the advantages of quicker speed, effectiveness and low cost, and is suitable for in-situ remediation ...

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Номер записи: 12
18-03-2009 дата публикации

Homogeneous ultraviolet radiation graft method and equipment

Номер: CN0101386653A
Автор: GUANGXIA WU, HELIN HUA, HUI ZHONG, WU GUANGXIA, HUA HELIN, ZHONG HUI
Принадлежит:

The invention relates to a method for obtaining a grafted macromolecular material. The method comprises the following steps: dissolving a macromolecular material, a grafted monomer and a photoinitiator in a solvent, putting the mixed solution into a photografting reactor after full and even dissolution, carrying out the illumination graft polymerization reaction after charging nitrogen gas a period of time, then adding the mixed solution to another solvent for precipitation and separation out, and obtaining the grafted macromolecular material.

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Номер записи: 13
09-10-2002 дата публикации

Coiled electrodialyzer

Номер: CN0001372998A
Автор: WU GUANGXIA, HUA HELIN, LIU KAI, GUANGXIA WU, HELIN HUA, KAI LIU
Принадлежит:

A coiled electrodialyzer is characterized by that the electrode and the ion exchange membrane are coiled together to make special membrane stack electrode, a diluted water channel unit is composed ofanionic and cationic exchange membranes and insulating isolative net sheet and communicated with the side wall of diluted water collecting pipe, a concentrated water channel is formed by inserting aninsulating net partition between said membrane stack electrode and diluted water channel unit, and a cylindrical body is formed by coiling around the diluted water collecting pipe.

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Номер записи: 14
28-07-2023 дата публикации

Preparation method of monatomic cobalt supported salt template modified carbon nitride catalyst

Номер: CN116493036A
Автор: RAN ZONGSHENG, CHEN SUHUA, DONG SHANSHAN, HUA HELIN, WANG ZHENYU, CAO JIAXIN
Принадлежит:

The invention discloses a preparation method of a monatomic cobalt supported salt template modified carbon nitride catalyst, and relates to a preparation method of a carbon nitride catalyst. The invention aims to solve the technical problems of complex preparation method, high cost, few reaction active sites of the catalyst, low metal atom loading capacity, low utilization rate, easy metal agglomeration, low catalytic activity and poor cycle stability of the existing cobalt monatomic loaded carbon nitride catalyst. Melamine and sodium chloride are mixed and calcined, the melting point is increased along with addition of sodium chloride, meanwhile, sodium ions are introduced into gaps of carbon nitride through the precursor, oxygen-containing functional groups of the precursor are beneficial to oxygen doping, more reaction sites are provided for loading of monatomic cobalt, and on the basis, the preparation method has the advantages that the preparation process is simple, and the preparation ...

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Номер записи: 15
18-05-2023 дата публикации

Method for removing organic pollutants from water bodies by activating persulfate with nutrient-enhanced soybean sprout-based biochar

Номер: US20230150850A1
Автор: Helin HUA, Jiaxin Cao, Qiugen ZHANG, Shanshan DONG, Suhua CHEN, Xianhua QIU
Принадлежит: NANCHANG HANGKONG UNIVERSITY

A method for removing organic pollutants from water bodies by activating persulfate with nutrient-enhanced soybean sprout-based biochar involves a method for removing organic pollutants from water bodies by activating persulfate with biochar. The invention is intended to solve the technical problems that existing biochar materials show poor catalytic activity when used for activating persulfate and requires the addition of a large amount of modifiers, which easily leads to secondary pollution to the environment, and the existing biochar materials are susceptible to interference from halogen ions, oxoanions, and natural organic matters in a persulfate system. The raw material of a catalyst used in the invention is soybean, and has an activation process mainly based on non-radical activation, exhibiting high reaction rate and saving persulfate. With the addition of 0.2 g/L catalyst and 0.5 mM potassium persulfate, the degradation efficiency against 10 mg/L phenol can reach 100% within 10 min.

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Номер записи: 16