CN206172993U - Preparation facilities of nanometer siO2 aerogel - Google Patents

Abstract

The utility model discloses a preparation facilities of nanometer siO2 aerogel, including laminar plasma generating device, vapourizing unit, condensing equipment and the static adsorption forming device that connects gradually, laminar plasma generating device includes gas circuit structure, generator (1) and arc channel structure (2) that connects gradually, its characterized in that: gas circuit structure is including big or small gas outlet tube (5) of gas inlet pipe (3), gas mixing chamber (4) and adjustable diameter that connect gradually. The utility model discloses a do it restraint and to evaporate to be exclusively used in the plasma the legal system is equipped with the mesh of nanometer siO2 aerogel with fixed attention for do it evaporate to adopt the plasma to restraint congeal the legal system be equipped with nanometer siO2 aerogel can serialization production, put in right place in one step.

Description

Nano-meter SiO_22The preparation facilitiess of aeroge

Technical field

This utility model belongs to Nano-meter SiO_2₂A kind of aeroge field, and in particular to Nano-meter SiO_2₂The preparation facilitiess of aeroge.

Background technology

Nano-meter SiO_2₂Aeroge is a kind of novel light porous material, with low-density, high porosity, lower thermal conductivity and height Light transmittance, low-refraction and low acoustic propagation velocity, are a kind of new and effective printing opacity heat-insulation and heat-preservation and deadener.This product has There are high transmission rate and lower thermal conductivity, be particularly suitable for solar energy optical-thermal low temperature flat water heater, middle temperature flat plate collector, building Windowpane etc. not only requires printing opacity but also requires high-efficiency insulated utilization place.

Nano-meter SiO_2 is prepared both at home and abroad at present₂Aeroge mainly adopts sol-gal process, is carried out by Supercritical Drying Technology Aeroge is formed after gas-liquid displacement, production efficiency is relatively low, production cost is high.Research of the ASPEN companies of the U.S. to aerogel heat-proof It is relatively early, mainly for flexible aerogel heat-proof product development and application.Domestic Tongji University lays particular emphasis on aeroge basic research, Prepared aerogel heat-insulating material mechanical strength is less, and formability is poor, only a small amount of practical application；University of Science ＆ Technology, Beijing Heat-insulation composite material is prepared using afwillite offspring and aeroge are compound, still in laboratory stage, without engineer applied； Nano high-tech be the country of representative be engaged in aerogel heat-insulating material research, production enterprise start late, lack qualified technical personnel, and Sol-gel process is adopted all.Due to the SiO of current sol-gal process both at home and abroad production₂Aeroge technological process is long, production effect Rate is relatively low, and because of external blockade on new techniques home products inferior quality, high cost, greatly constrains the extensive application of the product. China is the big country of solar energy optical-thermal application, and presently relevant research has proven to：Nano-meter SiO_2₂Aeroge is following high efficient cryogenic Water heater and the revolutionary key core material of medium and high temperature flat plate collector, have wide market prospect.For more efficient system Standby Nano-meter SiO_2₂Aeroge, develop steamed by beam-plasma-method of coagulating prepares Nano-meter SiO_2₂The method of aeroge.

Currently without steaming for beam-plasma-method of coagulating prepares Nano-meter SiO_2₂The special equipment of aeroge, result in Nano-meter SiO_2₂ Efficiency and quality prepared by aeroge is affected.

Utility model content

In order to solve the problems, such as above-mentioned prior art, the utility model proposes Nano-meter SiO_2₂The preparation dress of aeroge Put, realize be exclusively used in beam-plasma steam-method of coagulating prepares Nano-meter SiO_2₂The purpose of aeroge.

In order to reach above-mentioned technique effect, this utility model employs technical scheme below：

Nano-meter SiO_2₂The preparation facilitiess of aeroge, it is characterised in that：There is dress including the laminar flow plasma being sequentially connected Put, vapourizing unit, condensing units and Electrostatic Absorption shaped device；The laminar flow plasma generating meanss include what is be sequentially connected Gas circuit structure, generator and arc channel structure, it is characterised in that：The gas circuit structure includes the gas input being sequentially connected The gas output tube of pipe, gas mixing chamber and adjustable diameter size；The generator includes anode construction and cathode construction；Institute Stating anode construction includes anode posts, anode cap and the sealed insulation pad installed in anode cap successively, spiral power spring And anode nozzle；The cathode construction includes cathode column and cathode shield；The anode construction is located at center, around anode construction Annular is equidistantly positioned at least three cathode constructions；The vapourizing unit includes powder feeder, evaporation tube and generating tube, and its feature exists In：The powder feeder is passed through from the side of evaporation tube；The evaporation tube is located at the lower section of the generating tube；The evaporation tube and vapour It is separate mesh in place of changing pipe connection and both connections；The evaporation tube is arranged with the junction of laminar flow plasma generating meanss There is thermal source through hole；Transverse curvature above the generating tube, knee connection pressue device；The generating tube and condensing units connect Connect；The Electrostatic Absorption shaped device includes powder feeder, evaporation tube and generating tube, it is characterised in that：The powder feeder is from evaporation The side of pipe is passed through；The evaporation tube is located at the lower section of the generating tube；The evaporation tube is connected with generating tube and both companies Part is connect for separate mesh；Gas output tube described in the utility model include it is multiple successively decrease according to diameter be sequentially connected it is flexible Section.

Powder feeder described in the utility model includes the uniform room of powder, powder drying chamber, powder spout and powder-feeding mouth.

Particles inlet end described in the utility model becomes narrow gradually from top to bottom；The width at the particles inlet end is more than or equal to The width of substrate.

The beneficial effect that this utility model brings has：

1st, the utility model discloses Nano-meter SiO_2₂The preparation facilitiess of aeroge, including the laminar flow plasma being sequentially connected Generating meanss, vapourizing unit, condensing units and Electrostatic Absorption shaped device, realize be exclusively used in beam-plasma steam-coagulate method preparation Nano-meter SiO_2₂The purpose of aeroge.So that beam-plasma steam-method of coagulating prepares Nano-meter SiO_2₂Aeroge can continuous prodution, a step In place.

2nd, this utility model passes through gas circuit structure, generator and the arc channel structure being sequentially connected, by laminar flow plasma Generation and conveying one step complete, centre need not be interrupted, reduce energy loss and danger coefficient.Gas circuit structure passes through gas Input pipe Input gas, are mixed in gas mixing chamber, are mixed to gas and are allowed gas pressure intensity stable, improve laminar flow etc. The stability that ion is produced.Described gas output tube diameter can be adjusted, range of accommodation in 50-300 ㎜, by adjusting The diameter of gas output tube improves the scope of application of laminar flow plasma so as to adjust the diameter of laminar flow plasma beam.This practicality When new spiral power spring is powered, an electromagnetic compression ring is formed, play a part of to compress plasma-arc, can also make Ionic arc acnode in the uniform state of dynamic, extends life-span and the laminar stable of anode.Anode nozzle to electric arc etc. from Daughter carries out mechanical compress.Sealed insulation pad of the present utility model causes arc-plasma stable and concentrates, and can form height The long beam plasma arc of arc voltage small current laminar flow, anode and negative electrode long working life.Cathode construction of the present utility model surrounds anode Structure is equidistantly positioned, and increases the uniformity and stability of reaction.

3rd, this utility model passes through powder feeder by Nano-meter SiO_2₂Powder sends into evaporation tube, Nano-meter SiO_2 from side₂Amount of powder is few When direct evaporation into liquid arrive again gas reach generating tube, measure it is many when be mixed in the liquid for having generated, be uniformly heated.Steaming Send out in pipe by laminar flow plasma beam heating evaporation into liquid, be heated to a certain degree become gas, gas passes through separate mesh Upwards, lead to horizontal generating tube in the presence of pressue device.This utility model adopts laminar flow plasma beam, temperature is high, Heat is concentrated, and rapidly Nanometer SiO2 powder can be vaporized.This utility model is controlled from thermal source, laminar flow plasma The temperature of beam is high and concentrates so that Nano-meter SiO_2₂The rapid carburation by evaporation of powder, prevents from condensing, the Nano-meter SiO_2 of generation₂Aeroge It is homogeneous.Condensed by condensing units again.

4th, this utility model produces high voltage electric field using high tension generator, electrically charged by substrate by electrostatic generator, receives Rice SiO2 particles are entered from particles inlet end, the molding on substrate under Electrostatic Absorption.Connecting gear drives and is loaded with nanometer The substrate of SiO2 particles continues motion, and next substrate is then adsorbing nanometer SiO 2 particle.So as to realize that serialization electrostatic is inhaled The purpose of attached molding nanosized SiO_2 aeroge.This utility model employs seal insulation structure for electrothermal, reduces the interference of introduced contaminants, puts Put impurity by electrostatic adsorption on substrate.

Description of the drawings

Fig. 1 is schematic diagram of the present utility model；

Reference：1st, generator, 2, arc channel structure, 3, gas inlet pipe, 4, gas mixing chamber, 5, gas output Pipe, 6, anode construction, 7, cathode construction, 101, condensing units, 10, evaporation tube, 11, generating tube, 12, thermal source through hole, 13, pressurization Device, 16, the uniform room of powder, 17, powder drying chamber, 18, powder spout, 19, powder-feeding mouth, 30, sealed insulation mechanism, 31, high Pressure generator, 32, electrostatic generator, 33, substrate, 34, connecting gear, 35, particles inlet end, 36, electrostatic transmitting bar.

Specific embodiment

Embodiment 1

Nano-meter SiO_2₂The preparation facilitiess of aeroge, it is characterised in that：There is dress including the laminar flow plasma being sequentially connected Put, vapourizing unit, condensing units 101 and Electrostatic Absorption shaped device；The laminar flow plasma generating meanss include connecting successively Gas circuit structure, generator 1 and the arc channel structure 2 for connecing, it is characterised in that：The gas circuit structure includes the gas being sequentially connected The gas output tube 5 of input pipe 3, gas mixing chamber 4 and adjustable diameter size；The generator 1 includes anode construction 6 and the moon Pole structure 7；The anode construction 6 includes anode posts, anode cap and the sealed insulation pad installed in anode cap successively, spiral shell Rotation power spring and anode nozzle；The cathode construction 7 includes cathode column and cathode shield；The anode construction 6 is located at center, edge 6 peripheral circular of anode construction is equidistantly positioned at least three cathode constructions 7；The vapourizing unit includes powder feeder, evaporation tube 10 With generating tube 11, it is characterised in that：The powder feeder is passed through from the side of evaporation tube 10；The evaporation tube 10 is located at the vaporization The lower section of pipe 11；The evaporation tube 10 is connected with generating tube 11 and is separate mesh in place of both connections；The evaporation tube 10 with The junction of laminar flow plasma generating meanss is provided with thermal source through hole 12；11 top transverse curvature of the generating tube, knee Connection pressue device 13；The generating tube 11 and condensing units 101 connect；The Electrostatic Absorption shaped device includes sealed insulation Mechanism 30, high tension generator 31, electrostatic generator 32, substrate 33, connecting gear 34 and particles inlet end 35；The substrate 33 Move horizontally on connecting gear 34 and with connecting gear 34；The particles inlet end 35 is arranged on sealed insulation mechanism 30 Top and be located at substrate 33 above；The electrostatic generator 32 includes electrostatic transmitting bar 36 and DC high-voltage power supply；The electrostatic Transmitting bar 36 is evenly distributed in the horizontal direction and has gap each other.

Embodiment 2

Nano-meter SiO_2₂The preparation facilitiess of aeroge, it is characterised in that：There is dress including the laminar flow plasma being sequentially connected Put, vapourizing unit, condensing units 101 and Electrostatic Absorption shaped device；The laminar flow plasma generating meanss include connecting successively Gas circuit structure, generator 1 and the arc channel structure 2 for connecing, it is characterised in that：The gas circuit structure includes the gas being sequentially connected The gas output tube 5 of input pipe 3, gas mixing chamber 4 and adjustable diameter size；The generator 1 includes anode construction 6 and the moon Pole structure 7；The anode construction 6 includes anode posts, anode cap and the sealed insulation pad installed in anode cap successively, spiral shell Rotation power spring and anode nozzle；The cathode construction 7 includes cathode column and cathode shield；The anode construction 6 is located at center, edge 6 peripheral circular of anode construction is equidistantly positioned at least three cathode constructions 7；The vapourizing unit includes powder feeder, evaporation tube 10 With generating tube 11, it is characterised in that：The powder feeder is passed through from the side of evaporation tube 10；The evaporation tube 10 is located at the vaporization The lower section of pipe 11；The evaporation tube 10 is connected with generating tube 11 and is separate mesh in place of both connections；The evaporation tube 10 with The junction of laminar flow plasma generating meanss is provided with thermal source through hole 12；11 top transverse curvature of the generating tube, knee Connection pressue device 13；The generating tube 11 and condensing units 101 connect；The Electrostatic Absorption shaped device includes sealed insulation Mechanism 30, high tension generator 31, electrostatic generator 32, substrate 33, connecting gear 34 and particles inlet end 35；The substrate 33 Move horizontally on connecting gear 34 and with connecting gear 34；The particles inlet end 35 is arranged on sealed insulation mechanism 30 Top and be located at substrate 33 above；The electrostatic generator 32 includes electrostatic transmitting bar 36 and DC high-voltage power supply；The electrostatic Transmitting bar 36 is evenly distributed in the horizontal direction and has gap each other.

Gas output tube described in the utility model 5 includes multiple telescopic joints for successively decreasing according to diameter and being sequentially connected.

Embodiment 3

Nano-meter SiO_2₂The preparation facilitiess of aeroge, it is characterised in that：There is dress including the laminar flow plasma being sequentially connected Put, vapourizing unit, condensing units 101 and Electrostatic Absorption shaped device；The laminar flow plasma generating meanss include connecting successively Gas circuit structure, generator 1 and the arc channel structure 2 for connecing, it is characterised in that：The gas circuit structure includes the gas being sequentially connected The gas output tube 5 of input pipe 3, gas mixing chamber 4 and adjustable diameter size；The generator 1 includes anode construction 6 and the moon Pole structure 7；The anode construction 6 includes anode posts, anode cap and the sealed insulation pad installed in anode cap successively, spiral shell Rotation power spring and anode nozzle；The cathode construction 7 includes cathode column and cathode shield；The anode construction 6 is located at center, edge 6 peripheral circular of anode construction is equidistantly positioned at least three cathode constructions 7；The vapourizing unit includes powder feeder, evaporation tube 10 With generating tube 11, it is characterised in that：The powder feeder is passed through from the side of evaporation tube 10；The evaporation tube 10 is located at the vaporization The lower section of pipe 11；The evaporation tube 10 is connected with generating tube 11 and is separate mesh in place of both connections；The evaporation tube 10 with The junction of laminar flow plasma generating meanss is provided with thermal source through hole 12；11 top transverse curvature of the generating tube, knee Connection pressue device 13；The generating tube 11 and condensing units 101 connect；The Electrostatic Absorption shaped device includes sealed insulation Mechanism 30, high tension generator 31, electrostatic generator 32, substrate 33, connecting gear 34 and particles inlet end 35；The substrate 33 Move horizontally on connecting gear 34 and with connecting gear 34；The particles inlet end 35 is arranged on sealed insulation mechanism 30 Top and be located at substrate 33 above；The electrostatic generator 32 includes electrostatic transmitting bar 36 and DC high-voltage power supply；The electrostatic Transmitting bar 36 is evenly distributed in the horizontal direction and has gap each other.

Powder feeder described in the utility model includes the uniform room 16 of powder, powder drying chamber 17, powder spout 18 and powder-feeding mouth 19。

Embodiment 4

Nano-meter SiO_2₂The preparation facilitiess of aeroge, it is characterised in that：There is dress including the laminar flow plasma being sequentially connected Put, vapourizing unit, condensing units 101 and Electrostatic Absorption shaped device；The laminar flow plasma generating meanss include connecting successively Gas circuit structure, generator 1 and the arc channel structure 2 for connecing, it is characterised in that：The gas circuit structure includes the gas being sequentially connected The gas output tube 5 of input pipe 3, gas mixing chamber 4 and adjustable diameter size；The generator 1 includes anode construction 6 and the moon Pole structure 7；The anode construction 6 includes anode posts, anode cap and the sealed insulation pad installed in anode cap successively, spiral shell Rotation power spring and anode nozzle；The cathode construction 7 includes cathode column and cathode shield；The anode construction 6 is located at center, edge 6 peripheral circular of anode construction is equidistantly positioned at least three cathode constructions 7；The vapourizing unit includes powder feeder, evaporation tube 10 With generating tube 11, it is characterised in that：The powder feeder is passed through from the side of evaporation tube 10；The evaporation tube 10 is located at the vaporization The lower section of pipe 11；The evaporation tube 10 is connected with generating tube 11 and is separate mesh in place of both connections；The evaporation tube 10 with The junction of laminar flow plasma generating meanss is provided with thermal source through hole 12；11 top transverse curvature of the generating tube, knee Connection pressue device 13；The generating tube 11 and condensing units 101 connect；The Electrostatic Absorption shaped device includes sealed insulation Mechanism 30, high tension generator 31, electrostatic generator 32, substrate 33, connecting gear 34 and particles inlet end 35；The substrate 33 Move horizontally on connecting gear 34 and with connecting gear 34；The particles inlet end 35 is arranged on sealed insulation mechanism 30 Top and be located at substrate 33 above；The electrostatic generator 32 includes electrostatic transmitting bar 36 and DC high-voltage power supply；The electrostatic Transmitting bar 36 is evenly distributed in the horizontal direction and has gap each other.

Particles inlet end described in the utility model 35 becomes narrow gradually from top to bottom；The width at the particles inlet end 35 is more than Equal to the width of substrate 33.

Embodiment 5

Nano-meter SiO_2₂The preparation facilitiess of aeroge, it is characterised in that：There is dress including the laminar flow plasma being sequentially connected Put, vapourizing unit, condensing units 101 and Electrostatic Absorption shaped device；The laminar flow plasma generating meanss include connecting successively Gas circuit structure, generator 1 and the arc channel structure 2 for connecing, it is characterised in that：The gas circuit structure includes the gas being sequentially connected The gas output tube 5 of input pipe 3, gas mixing chamber 4 and adjustable diameter size；The generator 1 includes anode construction 6 and the moon Pole structure 7；The anode construction 6 includes anode posts, anode cap and the sealed insulation pad installed in anode cap successively, spiral shell Rotation power spring and anode nozzle；The cathode construction 7 includes cathode column and cathode shield；The anode construction 6 is located at center, edge 6 peripheral circular of anode construction is equidistantly positioned at least three cathode constructions 7；The vapourizing unit includes powder feeder, evaporation tube 10 With generating tube 11, it is characterised in that：The powder feeder is passed through from the side of evaporation tube 10；The evaporation tube 10 is located at the vaporization The lower section of pipe 11；The evaporation tube 10 is connected with generating tube 11 and is separate mesh in place of both connections；The evaporation tube 10 with The junction of laminar flow plasma generating meanss is provided with thermal source through hole 12；11 top transverse curvature of the generating tube, knee Connection pressue device 13；The generating tube 11 and condensing units 101 connect；The Electrostatic Absorption shaped device includes sealed insulation Mechanism 30, high tension generator 31, electrostatic generator 32, substrate 33, connecting gear 34 and particles inlet end 35；The substrate 33 Move horizontally on connecting gear 34 and with connecting gear 34；The particles inlet end 35 is arranged on sealed insulation mechanism 30 Top and be located at substrate 33 above；The electrostatic generator 32 includes electrostatic transmitting bar 36 and DC high-voltage power supply；The electrostatic Transmitting bar 36 is evenly distributed in the horizontal direction and has gap each other.

Gas output tube described in the utility model 5 includes multiple telescopic joints for successively decreasing according to diameter and being sequentially connected.

Powder feeder described in the utility model includes the uniform room 16 of powder, powder drying chamber 17, powder spout 18 and powder-feeding mouth 19。

Particles inlet end described in the utility model 35 becomes narrow gradually from top to bottom；The width at the particles inlet end 35 is more than Equal to the width of substrate 33.

Claims (4)

1. Nano-meter SiO_2₂The preparation facilitiess of aeroge, it is characterised in that：Including the laminar flow plasma generating meanss being sequentially connected, Vapourizing unit, condensing units（101）With Electrostatic Absorption shaped device；The laminar flow plasma generating meanss include being sequentially connected Gas circuit structure, generator（1）With arc channel structure（2）, it is characterised in that：The gas circuit structure includes the gas being sequentially connected Body input pipe（3）, gas mixing chamber（4）With the gas output tube of adjustable diameter size（5）；The generator（1）Including sun Pole structure（6）And cathode construction（7）；The anode construction（6）Installed including anode posts, anode cap and in anode cap successively Sealed insulation pad, spiral power spring and anode nozzle；The cathode construction（7）Including cathode column and cathode shield；It is described Anode construction（6）Positioned at center, along anode construction（6）Peripheral circular is equidistantly positioned at least three cathode constructions（7）；The vapour Makeup is put including powder feeder, evaporation tube（10）And generating tube（11）, it is characterised in that：The powder feeder is from evaporation tube（10）Side Face is passed through；The evaporation tube（10）Positioned at the generating tube（11）Lower section；The evaporation tube（10）With generating tube（11）Connection And be separate mesh in place of both connection；The evaporation tube（10）The junction of laminar flow plasma generating meanss is provided with heat Source through hole（12）；The generating tube（11）Top transverse curvature, knee connection pressue device（13）；The Electrostatic Absorption molding Device includes sealed insulation mechanism（30）, high tension generator（31）, electrostatic generator（32）, substrate（33）, connecting gear（34） With particles inlet end（35）；The substrate（33）Positioned at connecting gear（34）Above and with connecting gear（34）Move horizontally；Institute State particles inlet end（35）It is arranged on sealed insulation mechanism（30）Top and be located at substrate（33）Top；The electrostatic generator （32）Including electrostatic transmitting bar（36）And DC high-voltage power supply；The electrostatic transmitting bar（36）It is evenly distributed in the horizontal direction and There is gap each other.

2. Nano-meter SiO_2 according to claim 1₂The preparation facilitiess of aeroge, it is characterised in that：The gas output tube（5） Including multiple telescopic joints for successively decreasing according to diameter and being sequentially connected.

3. Nano-meter SiO_2 according to claim 1₂The preparation facilitiess of aeroge, it is characterised in that：The powder feeder includes powder Last uniform room（16）, powder drying chamber（17）, powder spout（18）And powder-feeding mouth（19）.

4. Nano-meter SiO_2 according to claim 1₂The preparation facilitiess of aeroge, it is characterised in that：The particles inlet end （35）Become narrow gradually from top to bottom；The particles inlet end（35）Width be more than or equal to substrate（33）Width.