CN1827227A - Nozzle for micro and nano material preparation by interior mixing supercritical fluid - Google Patents
Nozzle for micro and nano material preparation by interior mixing supercritical fluid Download PDFInfo
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- CN1827227A CN1827227A CN 200510042540 CN200510042540A CN1827227A CN 1827227 A CN1827227 A CN 1827227A CN 200510042540 CN200510042540 CN 200510042540 CN 200510042540 A CN200510042540 A CN 200510042540A CN 1827227 A CN1827227 A CN 1827227A
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- nozzle body
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- supercritical fluid
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Abstract
The invention belongs to the nanometer micro material preparing device, which especially relates to an internal mixed hypercritical fluid nanometer micro material preparing nozzle. The invention is formed by a nozzle main body and a taper end sheath and a collector which are mounted on the main body; wherein, the tail of said main body is a nozzle core; the main body and the taper end sheath are positioned by positioning surface, locked by screw connection and adjusting locking element, and sealed by sealing ring; the taper end sheath and the nozzle core form the annular slit as the nozzle; the nozzle via the feeding channel of main body is connected to the material feeding channel; the collector is outside the main body and the taper end sheath to be fixed on the main body; the collector has a valve. The invention has reasonable structure which can mix several materials synchronously to be sprayed, to realize internal mixed hypercritical fluid nanometer micro particle preparation. The annular slit of nozzle can be adjusted easily to avoid jam and prepare smaller particle. The invention can reduce the cost and improve the efficiency.
Description
One, affiliated technical field
The invention belongs to nano micro-material and prepare equipment, particularly relate to a kind of nozzle for micro and nano material preparation by interior mixing supercritical fluid.
Two, background technology
The preparation of supercritical fluid nano micro-material has rapid expanding method, anti-solvent method, aerosol extraction, solution to strengthen supercritical fluid dispersion method etc., all needs a nozzle that the aperture is very little in these methods.This class nozzle is except the aperture is very little, textural suitable difference arranged also, wherein internal-mixing nozzle is exactly a kind of typical structure, when its feature is to mix the solution that sprays more than one, earlier a kind of in the solution sprayed into the another kind of solution from nozzle internal layer spray orifice, the solution after the rapid mixing is again from spraying in the another kind of new solution, by that analogy one deck spray orifice down, mix the back fully until all solution and spray at a high speed, make nano micro-material from nozzle outermost one deck spray orifice.The spray orifice of nozzle is made by methods such as laser borings mostly at present, guarantees very little aperture thus.By the nozzle that this method is made, be easy to block, stop up the back and be difficult for mediation, and nozzle material therefor and cost of manufacture are all very high, therefore in case block and just cause significant wastage.In addition, preparation has a significant impact because the size of nozzle bore is to nano micro-material, be a key factor that influences preparation process, and this type of nozzle bore is unadjustable, particularly will often change nozzle in the material preparation research.Like this, just need do a plurality of nozzles, need, improve the cost of material preparation and research greatly for different materials preparation and research.In addition, existing nozzle bore is very little, nozzle quantity is limited, and the amount of prepared nano micro-material is little, and efficient is low, and metering and detection error are big.
Three, summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of adjustable with same nozzle core combination by multilayer awl end cover, and produce a plurality of nozzle clearances nested formation one by one, mix the nozzle for micro and nano material preparation by interior mixing supercritical fluid that quality is good and treating capacity is big in the annular space precision height, material.
Basic design of the present invention is: reach awl end cover and the gatherer installed by nozzle body on nozzle body and constitute, the tail end of nozzle body is a nozzle core; Nozzle body is held between the cover with awl and is located, is threaded and adjusting, locking member locking and sealing ring sealing by locating surface, nozzle core on the nozzle body is a spray material port with the slit that constitutes ring-type between each awl end cover, each spray material port is nested one by one from inside to outside, spray material port links to each other with Material pipeline by the feeding-passage on the nozzle body, gatherer is included in the outside of nozzle body and awl end cover assembly, and be fixed on the nozzle body, valve is arranged on the gatherer.
Nozzle body is a step structure, have on each ladder section screw thread, locating surface and the sealing surface that the awl end overlaps and locking member is used is installed, feeding-passage on the nozzle body communicates with each ladder, on the nozzle body ladder in the outside that nozzle body installation outermost one deck awl end overlaps discharging channel is arranged, ladder quantity is determined according to the design needs of spray material port.
The nozzle core of nozzle body tail end is a ledge structure, and each step is provided with and bores end cover and cooperates the taper seat of adjustment annular space spray material port size.
The awl end puts screw thread that is complementary with nozzle body and locating surface and the sealing surface that tightly cooperates.
When on the nozzle body seal being installed, the sealing surface on the nozzle body is for installing the groove of sealing ring, and the sealing surface that the awl end puts is the face of cylinder; Locking member is a locking nut; The awl end puts when seal is installed, and the sealing surface that the awl end puts is for installing the groove of sealing ring, and the sealing surface on the nozzle body is the face of cylinder.
Gatherer is a tubular, be connected by opening hermetically-sealed construction soon with nozzle body, open hermetically-sealed construction soon and can be flange flat cover or spiral flat cover or clip or tooth is nibbled or subdivision ring type etc., seal can be plain cushion or " O " type pad or octangonal ring or oval ring etc.
The present invention is rational in infrastructure, have multiple solution is sprayed into the function that finally sprays simultaneously again behind next solution or the mixed solution one by one, realize mixing in the supercritical fluid function of preparation nano micro-material, and the big I of the formed annular slot of nozzle is adjusted easily by rotating cone end cover, be difficult for stopping up, even also can dredge by transferring big annular space in case stop up, annular slot is adjusted the back and is tightly locked the accurately difficult variation of its annular space with locking member, can prepare the littler particle of nozzle more in the past.Can realize big flow material preparation, thereby save cost, improve efficient.
Four, description of drawings
Fig. 1 is a nozzle-integrated structural representation of the present invention;
Fig. 2 is a nozzle body structural representation of the present invention;
Fig. 3 is the nozzle arrangements schematic diagram with 2 layers of awl end cover;
Fig. 4 is the nozzle arrangements schematic diagram with 4 layers of awl end cover.
Reference numeral:
1 nozzle body, 1-1 hermetically-sealed construction, 1-2 hierarchic structure, 1-3 screw thread, the 1-4 locating surface, 1-5 seal, 1-6 sealing surface, 1-7 nozzle core, 2 locking members, 3 awl end covers, 4 gatherers, the 4-1 hermetically-sealed construction, 4-1-1 securing member, 4-2 seal, 4-3 gatherer cylindrical shell, 4-4 valve, 4-5 discharging opening, 5 spray material ports, 6 feeding-passages, 7 discharging channels.
Five, specific embodiment
Embodiment one:
As shown in Figure 1, for the nozzle of three layers of awl end cover 3 is arranged.Have three hierarchic structure 1-2 on the nozzle body 1, screw thread 1-3, locating surface 1-4 and sealing surface 1-6 are all arranged on each hierarchic structure, sealing surface 1-6 is a seal groove structure so that seal 1-5 is installed, and seal 1-5 employing " O " shape rubber ring guarantees that nozzle body 1 and awl end overlap 3 sealing; The conical surface that has three sections sizes to strengthen gradually on the nozzle core 1-7 is with nozzle body 1 one; Nozzle body 1, hermetically-sealed construction 1-1, all adopt flange flat cover structure with gatherer 4 and hermetically-sealed construction 4-1, connect by bolt fastener 4-1-1, seal 4-2 adopts " O " shape rubber ring, for guaranteeing good sealing effectiveness, settle the position of seal 4-2 to offer seal groove at hermetically-sealed construction 1-1; The valve 4-4 at gatherer 4 discharging opening places adopts ball valve, can well seal, again can be very fast open the taking-up material.This nozzle can satisfy the requirement of nano micro-material preparation, prepares the particle littler than the other types nozzle.
Nozzle carries out the running of supercritical fluid nano micro-material preparation: carbon dioxide is by common supercritical carbon dioxide production method, promptly earlier carbon dioxide refrigeration is liquefied, reach more than the critical pressure by force (forcing) pump pressurization, form supercritical carbon dioxide more than entering the critical-temperature that heater improves the carbon dioxide temperature again.With force (forcing) pump pressurization be dissolved with solution, supercritical carbon dioxide, secondary solvent etc. that desire prepares nano and micro materials by technological requirement feed successively nozzle in one deck feeding-passage, second layer passage and outermost one deck passage; By the ground floor nozzle time, the solution that the ground floor passage enters fully mixes with the solution that second layer passage enters, mixed then solution is by second layer nozzle, mix back one deck nozzle outside mouth sprays at a high speed with solution that outermost one deck passage enters, solvent rapid expanding and dispersion, discharge from discharging channel, rapid supersaturation of the solute of desire system nano micro-material and crystallization rapidly make nano micro-material.
If when need regulating nozzle clearance and preparing different nano micro-material, then before beginning preparation, in pulling down earlier, outer awl end cover, install one by one from the inside to surface then and rotate awl end cover 3 (right-handed threads), clockwise turn to and dwindle annular space, be rotated counterclockwise to increasing annular space.For ease of adjusting annular space, can demarcate the pairing annular space size of the awl end cover anglec of rotation by microscopic examination, annular space is adjusted the back and is locked with locking nut.
Embodiment two:
As shown in Figure 3, for the nozzle of two-layer awl end cover 3 is arranged, other is with embodiment one.
Embodiment three:
As shown in Figure 4, for the nozzle of four layers of awl end cover 3 is arranged, other is with embodiment one.
Claims (5)
1, nozzle for micro and nano material preparation by interior mixing supercritical fluid, it is characterized by by nozzle body and the awl end on nozzle body, installed cover and gatherer and constitute, the tail end of nozzle body is a nozzle core, locate by locating surface between nozzle body and the awl end cover, be threaded and regulate, locking member locking and sealing ring sealing, nozzle core on the nozzle body is a spray material port with the slit that constitutes ring-type between each awl end cover, each spray material port is nested one by one from inside to outside, spray material port links to each other with Material pipeline by the feeding-passage on the nozzle body, gatherer is included in the outside of nozzle body and awl end cover assembly, and be fixed on the nozzle body, valve is arranged on the gatherer.
2, nozzle for micro and nano material preparation by interior mixing supercritical fluid according to claim 1, it is characterized by described nozzle body is step structure, have on each ladder section screw thread, locating surface and the sealing surface that the awl end overlaps and locking member is used is installed, feeding-passage on the nozzle body communicates with each ladder, on the nozzle body ladder in the outside that nozzle body installation outermost one deck awl end overlaps discharging channel is arranged, ladder quantity is determined according to the design needs of spray material port.
3, nozzle for micro and nano material preparation by interior mixing supercritical fluid according to claim 1, it is characterized by described nozzle core is ledge structure, each step is provided with and bores end cover and cooperates the taper seat of adjustment annular space spray material port size.
4, nozzle for micro and nano material preparation by interior mixing supercritical fluid according to claim 1 is characterized by described awl end and puts screw thread that is complementary with nozzle body and locating surface and the sealing surface that tightly cooperates.
5 nozzle for micro and nano material preparation by interior mixing supercritical fluid according to claim 1, it is characterized by described locking member is locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100425407A CN100352558C (en) | 2005-03-04 | 2005-03-04 | Nozzle for micro and nano material preparation by interior mixing supercritical fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100425407A CN100352558C (en) | 2005-03-04 | 2005-03-04 | Nozzle for micro and nano material preparation by interior mixing supercritical fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1827227A true CN1827227A (en) | 2006-09-06 |
| CN100352558C CN100352558C (en) | 2007-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100425407A Expired - Fee Related CN100352558C (en) | 2005-03-04 | 2005-03-04 | Nozzle for micro and nano material preparation by interior mixing supercritical fluid |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101260973B (en) * | 2008-04-17 | 2010-06-02 | 山东大学 | Moveable barrel pressure vessel quick-opening device |
| CN102133558A (en) * | 2010-12-10 | 2011-07-27 | 山东大学 | Accurate adjusting annular gap combined nozzle for preparing supercritical fluid nano/micron material |
| CN108579491A (en) * | 2018-03-15 | 2018-09-28 | 青岛科技大学 | A kind of percussion flow spraying mixer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061019A (en) * | 2000-08-10 | 2002-02-28 | Yokoi Sangyo Kk | Method for producing ultrafine hole for a very little amount of fluid feeding structure, and spinneret for low-viscosity polymer based on the same |
| CN1391980A (en) * | 2002-06-03 | 2003-01-22 | 上海交通大学 | Spray nozzle device for preparing micro and nano particles |
| CN2569902Y (en) * | 2002-08-30 | 2003-09-03 | 谭兆林 | Compound expansion stillage residue |
| CN1238101C (en) * | 2003-10-10 | 2006-01-25 | 大连理工大学 | Crystallizing kettle for preparing superfine powder using supercritical anti-solvent process |
-
2005
- 2005-03-04 CN CNB2005100425407A patent/CN100352558C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101260973B (en) * | 2008-04-17 | 2010-06-02 | 山东大学 | Moveable barrel pressure vessel quick-opening device |
| CN102133558A (en) * | 2010-12-10 | 2011-07-27 | 山东大学 | Accurate adjusting annular gap combined nozzle for preparing supercritical fluid nano/micron material |
| CN102133558B (en) * | 2010-12-10 | 2012-10-03 | 山东大学 | Accurate adjusting annular gap combined nozzle for preparing supercritical fluid nano/micron material |
| CN108579491A (en) * | 2018-03-15 | 2018-09-28 | 青岛科技大学 | A kind of percussion flow spraying mixer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100352558C (en) | 2007-12-05 |
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