CN102794122A - Device for generating gas-nanoparticle two-phase uniform fluid - Google Patents
Device for generating gas-nanoparticle two-phase uniform fluid Download PDFInfo
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- CN102794122A CN102794122A CN2012102965363A CN201210296536A CN102794122A CN 102794122 A CN102794122 A CN 102794122A CN 2012102965363 A CN2012102965363 A CN 2012102965363A CN 201210296536 A CN201210296536 A CN 201210296536A CN 102794122 A CN102794122 A CN 102794122A
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Abstract
The invention discloses a device for generating gas-nanoparticle two-phase uniform fluid, which comprises a compressed gas flow control chamber and a nanoparticle vibration-type quantitative feeding device, wherein the nanoparticle vibration-type quantitative feeding device is mounted inside the compressed gas flow control chamber. When compressed gas is introduced into the compressed gas flow control chamber, nanoparticles supplied by the nanoparticle vibration-type quantitative feeding device are taken away by the gas flow, and are uniformly mixed with the compressed gas to form the gas-nanoparticle two-phase uniform fluid. The compressed gas flow control chamber can allow the introduced compressed gas to disperse and contract uniformly, cause no backflow, and thus ensure that the supplied nanoparticles are taken away completely by the compressed gas flow. The nanoparticle vibration-type quantitative feeding device can quantitatively control the feeding rate of the nanoparticles, change the content of the nanoparticles in the gas-solid two-phase flow, and thus generate various gas-solid two-phase flow with different nanoparticle concentrations.
Description
Technical field
The invention belongs to Dual-Phrase Distribution of Gas olid body generating apparatus technical field, relate to a kind of gas-nano particle two phase homogeneous (uniform) fluid generating apparatus.
Background technology
In recent years; The Dual-Phrase Distribution of Gas olid body has some special nature slowly to be realized by people, can form gas-nano particle two-phase fluid lubricating film (being called for short the nano particle air film) in the gas bearing as nano particle is joined as the lubriation material additive.Nano particle obtains kinetic energy under the drive of high velocity air; Collision each other takes place, and collision movement makes the rigidity of nano particle air film be higher than gas membrane each other, thereby can have higher bearing capacity; To improve the rigidity of gas bearing, the range of application of enlargement gas bearing.
For better utilization nano particle air film, design new gas bearing with broader applications, just need study the performance and the lubrication principle of nano particle air film.When the performance of research nano particle air film, at first need a kind of Dual-Phrase Distribution of Gas olid body generating apparatus, Compressed Gas and nano particle are mixed, produce gas-nano particle two phase homogeneous (uniform) fluids continuously, be passed in the gas bearing.
But, do not find the generating apparatus that can Compressed Gas and nano particle be mixed mutually generation gas-nano particle two phase homogeneous (uniform) fluids through consulting reference materials.At present, be typically aerosol generator in the Dual-Phrase Distribution of Gas olid body generating apparatus, generally adopt the high velocity air gunite; The specific embodiment is: solid particle is transported to diffusion tip through pay-off; At the diffusion tip place, through the effect of nozzle, air-flow will be accelerated high-speed greater than 100m/s; High velocity air is that the abundant dispersion of powder provides necessary turbulent flow and shearing force, and the particle of reunion is finally disperseed output.Can generate gas-nano particle two phase homogeneous (uniform) fluids with reference to the method.Yet, can not adopt general method (like the funnel blanking) to carry out feeding because nano particle is very light and adsorptivity is stronger.Simultaneously, the pressure of Compressed Gas is higher than atmospheric pressure, in order to guarantee the stress balance of nano particle in the pay-off, needs pay-off as in the pressure environment.In addition, in the nano particle air film, the concentration of nano particle is different, maybe be different to the influence of gas bearing bearing capacity.
Summary of the invention
The problem that the present invention solves is to provide a kind of gas-nano particle two phase homogeneous (uniform) fluid generating apparatus; This device can mix Compressed Gas with nano particle; The Dual-Phrase Distribution of Gas olid that contains nano particle without interruption, and can quantitatively control the concentration of nano particle in the Dual-Phrase Distribution of Gas olid.
The present invention realizes through following technical scheme:
A kind of gas-nano particle two phase homogeneous (uniform) fluid generating apparatus is characterized in that, comprise the compressed gas flow control chamber, in its cavity, are provided with nano particle oscillatory type metering device; The process that Compressed Gas shrinks through diffusion earlier in the compressed gas flow control chamber again, the carried away by air movement that the nano particle that nano particle oscillatory type metering device is supplied with is flow through forms gas-nano particle two phase homogeneous (uniform) fluids and flows out;
The compressed gas flow control chamber comprises pressure-bearing awl tube and the pressure-bearing cylinder that is tightly connected, and the top of pressure-bearing awl tube is provided with air supply pipe, and the bottom of pressure-bearing cylinder is provided with down air supply pipe;
Nano particle oscillatory type metering device comprises barrel, and the entrance point of barrel is provided with taper barrel lid, and the port of export is provided with the blanking screen cloth; The barrel retainer ring is connected with barrel through equally distributed several spring mechanisms; Exciting agency is fixedly connected with barrel, and exciting agency adopts the eccentric block rotation to produce vibration and drives the barrel vibration;
The junction of pressure-bearing awl tube and pressure-bearing cylinder is provided with ring-shaped step, barrel be connected through barrel retainer ring and ring-shaped step and be installed in the compressed gas flow control chamber (specifically be annulus through the barrel retainer ring partly be connected with the ring-shaped step of pressure-bearing cylinder be installed in the compressed gas flow control chamber).
Described pressure-bearing is bored the taper shape that is shaped as of tube, and it is respectively equipped with first stiffening ring and second stiffening ring in two ends up and down; The pressure-bearing cylinder by cylindrical be attached thereto the conical contraction section that connects and form;
Pressure-bearing awl tube is respectively equipped with the flange arrangement that is used to be tightly connected with the joint face of pressure-bearing cylinder, and ring-shaped step is arranged on the flange arrangement place of pressure-bearing cylinder.
The described air supply pipe of going up is connected with pressure-bearing awl tube through last air connector, and following air supply pipe is connected with the pressure-bearing cylinder through following air connector;
Pressure-bearing awl tube is connected with hold-down nut through a plurality of fastening bolts with the pressure-bearing cylinder, seals with first sealing ring and second sealing ring between its joint face, and the diameter of first sealing ring is greater than the diameter of second sealing ring.
Described upward air supply pipe inserts to be gone up in the air connector, and last air connector is bored tube through being threaded with pressure-bearing; Following air supply pipe inserts down in the air connector, and following air connector and pressure-bearing cylinder are through being threaded; Compressed Gas flows into from last air supply pipe, flows through cavity, from air supply pipe outflow down.
The top of described barrel is conically shaped, and the bottom is made up of two different cylinders of diameter; The junction of taper barrel lid and barrel is located at about 1/3rd eminences of upper taper tube of barrel, and taper barrel lid is connected through ring-shaped step and barrel; The wire side of blanking screen cloth is tapered;
After the nano particle in the barrel falls from the blanking screen cloth, by the carried away by air movement that flow through, and mix in pressure-bearing cylinder bottom and gas, gas-nano particle two phase homogeneous (uniform) fluids of formation are along air supply pipe outflow down.
Described exciting agency is fixedly connected with barrel with the bonding on the face of cylinder of barrel through the interior concaved circular cambered surface that cooperatively interacts;
Exciting agency comprises base, and base is provided with motor, and motor is provided with connecting axle, and eccentric block is installed on the connecting axle and through hold-down screw and is fixedly connected; Motor axially and barrel axially be 45 ° of angles;
The blanking screen cloth is fixed on the port of export of barrel through the net hoop, and wire side is through being fixed on screw and nut on the net hoop.
The one side of described base is interior concaved circular cambered surface, and another side is the plane that is connected with motor that has two symmetrical boss, and each boss is provided with screwed hole, and the line of symmetry of the axis of interior concaved circular cambered surface and two boss is 45 ° of angles;
Motor is provided with the electric wire connector that stretches out, and the power supply adjustable with voltage is connected; Motor is installed on the base through fixing sheet metal component, and is fastening with the motor hold-down screw.
Described barrel retainer ring is provided with equally distributed inner convex platform, and inner convex platform is provided with through hole, and the through hole inside fire attack has screw thread; Barrel is provided with and the corresponding outer lug boss of inner convex platform, and outer lug boss is provided with connecting through hole;
Spring mechanism comprises extension spring, and two of extension spring is connected on hex head screw and the button-headed screw; The spring hold-down nut is pressed on the head of hex head screw with extension spring, and hex head screw is threaded with inner convex platform; Button-headed screw passes the connecting through hole of outer lug boss, carries out fastening with clamp nut; Hex head screw can be in the screwed hole of inner convex platform up-down adjustment.
The top of described pressure-bearing awl tube, barrel, taper barrel lid and blanking screen cloth all adopt cone angle less than 30 ° small-angle structure.
The cone angle of described pressure-bearing awl tube is 18 °, 24 ° of the cone angles on barrel top; Observe the center that barrel is positioned at the pressure-bearing cylinder, the gap between the barrel of eccentric block in the exciting agency and pressure-bearing cylinder is greater than 5mm; The gap of the bottom of the tip of blanking screen cloth and pressure-bearing cylinder is greater than 25mm.
Compared with prior art, the present invention has following beneficial technical effects:
(1) gas-nano particle two phase homogeneous (uniform) fluid generating apparatus provided by the invention can mix Compressed Gas with nano particle, gas-nano particle two phase homogeneous (uniform) fluids without interruption.In the compressed gas flow control chamber, feed Compressed Gas; The carried away by air movement that the nano particle that nano particle oscillatory type metering device is supplied with can be flow through; And evenly mix with Compressed Gas, form gas-nano particle two phase homogeneous (uniform) fluids, supply in the gas bearing along supply air line.
Gas-nano particle two phase homogeneous (uniform) fluids without interruption; Quantitatively control the delivery rate of nano particle; Change the content of nano particle in Dual-Phrase Distribution of Gas olid, significant to the gas bearing Effect on Performance for research nano particle air film to the concentration of nano particle in the improved action of gas bearing bearing capacity and the nano particle air film.
(2) gas-nano particle two phase homogeneous (uniform) fluid generating apparatus provided by the invention can quantitatively be controlled the concentration of nano particle in the Dual-Phrase Distribution of Gas olid.Exciting agency in the nano particle oscillatory type metering device is to adopt the eccentric block rotation to produce vibration.Different voltages with different is provided for the motor that connects eccentric block, rotating speed of motor can corresponding change.Through demarcating, under the constant condition of other conditions, change the magnitude of voltage of additional power source, rotating speed of motor can change thereupon, causes the vibration frequency generation respective change of exciting agency, finally causes changing from the nano particle amount that screen cloth falls.Therefore,, can quantitatively control the delivery rate of nano particle, change the content of nano particle in Dual-Phrase Distribution of Gas olid, thereby can form the Dual-Phrase Distribution of Gas olid of various different nano particle concentration through changing the voltage of additional power source.
(3) gas-nano particle two phase homogeneous (uniform) fluid generating apparatus provided by the invention, compressed gas flow control chamber can make the evenly diffusion and the contraction of Compressed Gas of feeding, do not reflux, and all are compressed carried away by air movement to guarantee the nano particle of supplying with.In this device; Pressure-bearing awl tube, barrel, taper barrel lid and blanking screen cloth all adopt the small-angle structure; This structure can make high velocity air stable passing through in cavity; Do not reflux, thereby realize the carried away by air movement that nano particle that nano particle oscillatory type metering device is supplied with is all flow through, help accurately to control the concentration of nano particle in the Dual-Phrase Distribution of Gas olid.
(4) gas-nano particle two phase homogeneous (uniform) fluid generating apparatus provided by the invention, applied voltage one timing, the vibrating effect that exciting agency produces is better, and the powder amount that falls is relatively large.The axis of the axis of motor and barrel is 45 ° of angles in the exciting agency, when eccentric block rotates, causes that barrel vibrates along both direction; This mode of vibration can be implemented in applied voltage one regularly; The powder amount that falls of nano particle is relatively large, thereby can conservation of power, reduces energy consumption.Simultaneously, the conical design of blanking screen cloth has also enlarged the blanking area, helps to increase the powder amount that falls.
(5) gas-nano particle two phase homogeneous (uniform) fluid generating apparatus provided by the invention, the ingenious design of barrel structure can realize the maximization of barrel volume under the prerequisite that satisfies each item requirement.Two requirements have been satisfied in the design of barrel: at first, the nozzle of barrel can not be too little, otherwise can produce inconvenience when in barrel, adding nano particle; Secondly, the diameter of barrel bottom cylinder can not be too big, otherwise behind bonding exciting agency on the cylinder wall, the gap between exciting agency and the pressure-bearing cylinder wall is less, and barrel is when vibration, and eccentric block can be run into the barrel of pressure-bearing cylinder, produces dangerous.
In this device, the mating surface of barrel conical lid and barrel (being the position of nozzle) is at about 1/3rd places of the upper taper tube of barrel; The bottom of barrel is designed to the different cylinder of diameter, and exciting agency is bonded on the small diameter cylinder.This structural design can be on the basis of avoiding above two problems, and the volume of developing barrel to greatest extent is used for the more nano particle of splendid attire.
(6) gas-nano particle two phase homogeneous (uniform) fluid generating apparatus provided by the invention; Be connected with spring mechanism between barrel and the barrel retainer ring; The vibration that can avoid barrel to produce passes to outside pressure-bearing cylinder; The pressure-bearing cylinder can not vibrate, and produces dangerous otherwise explosion might take place; In spring mechanism, can it be moved up and down in the inner convex platform screwed hole of barrel retainer ring, thereby change the relative length of spring mechanism through the rotation hex head screw, remedy three spring mechanism length different defects, reach the purpose of leveling barrel.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of compressed gas flow control chamber;
Fig. 3 be nano particle oscillatory type metering device structural representation;
Fig. 4 is the structural representation of exciting agency;
Fig. 5 is the connection sketch map of spring mechanism.
Wherein, 1 is last air supply pipe, and 2 is last air connector, and 3 are pressure-bearing awl tube; 4 are taper barrel lid, and 5 is fastening bolt, and 6 is sealing ring, and 7 is the barrel retainer ring; 8 is hold-down nut, and 9 is spring mechanism, and 10 is barrel, and 11 is the pressure-bearing cylinder; 12 is exciting agency, and 13 is the blanking screen cloth, and 14 are following air connector, and 15 are following air supply pipe;
301 is first stiffening ring, and 302 is second stiffening ring;
401 is the cover ring-shaped step; 601 is first sealing ring, and 602 is second sealing ring; 701 is the annulus part, and 702 is inner convex platform;
901 is the spring hold-down nut, and 902 is hex head screw, and 903 are extension spring, and 904 is button-headed screw, and 905 is clamp nut;
1001 is the face of cylinder of barrel, and 1002 is outer lug boss; 1101 is ring-shaped step;
1201 is interior concaved circular cambered surface, and 1202 is the electric wire connector, and 1203 is the motor hold-down screw, and 1204 is base, and 1205 is hold-down screw, and 1206 is eccentric block, and 1207 is connecting axle, and 1208 are fixing sheet metal component, and 1209 is motor;
1301 are the net hoop, and 1302 is wire side, and 1304 is screw, and 1305 is nut.
The specific embodiment
Gas-nano particle two phase homogeneous (uniform) fluid generating apparatus provided by the invention, it comprises compressed gas flow control chamber and nano particle oscillatory type metering device, wherein nano particle oscillatory type metering device is installed in compressed gas flow control chamber inside.In the compressed gas flow control chamber, feed Compressed Gas, the carried away by air movement that the nano particle that nano particle oscillatory type metering device is supplied with can be flow through, and evenly mix with Compressed Gas, form gas-nano particle two phase homogeneous (uniform) fluids.The compressed gas flow control chamber can make the evenly diffusion and the contraction of Compressed Gas of feeding, does not reflux, and all is compressed carried away by air movement to guarantee the nano particle of supplying with.Nano particle oscillatory type metering device can quantitatively be controlled the delivery rate of nano particle, changes the content of nano particle in Dual-Phrase Distribution of Gas olid, thereby can form the Dual-Phrase Distribution of Gas olid of various different nano particle concentration.Below in conjunction with concrete embodiment the present invention is done further detailed description, said is to explanation of the present invention rather than qualification.
Referring to Fig. 1, Fig. 2, Fig. 3, a kind of gas-nano particle two phase homogeneous (uniform) fluid generating apparatus comprise the compressed gas flow control chamber, in its cavity, are provided with nano particle oscillatory type metering device; The process that Compressed Gas shrinks through diffusion earlier in the compressed gas flow control chamber again, the carried away by air movement that the nano particle that nano particle oscillatory type metering device is supplied with is flow through forms gas-nano particle two phase homogeneous (uniform) fluids and flows out;
The compressed gas flow control chamber comprises the pressure-bearing awl tube 3 and pressure-bearing cylinder 11 that is tightly connected, and the top of pressure-bearing awl tube 3 is provided with air supply pipe 1, and the low side of pressure-bearing cylinder 11 is provided with down air supply pipe 15;
Nano particle oscillatory type metering device comprises barrel 10, and the entrance point of barrel 10 is provided with taper barrel lid 4, and the port of export is provided with blanking screen cloth 13; Barrel retainer ring 7 is connected with barrel 10 through equally distributed several spring mechanisms 9; Exciting agency 12 is fixedly connected with barrel 10, and exciting agency 12 adopts the eccentric block rotation to produce vibration and drives barrel 10 vibrations;
The junction of pressure-bearing awl tube 3 and pressure-bearing cylinder 11 is provided with ring-shaped step 1101, and barrel 10 is connected through barrel retainer ring 7 and ring-shaped step 1101 and is installed in the compressed gas flow control chamber.
Concrete, the compressed gas flow control chamber comprises pressure-bearing awl tube 3 and pressure-bearing cylinder 11; The ring-shaped step 1101 of the annulus part 701 of nano particle oscillatory type metering device through barrel retainer ring 7 and pressure-bearing cylinder 11 is connected and is installed in the compressed gas flow control chamber.
Tube is bored in being shaped as of described pressure-bearing awl tube 3; It is respectively equipped with first stiffening ring 301 and second stiffening ring 302 (stiffening ring is the problem of stress concentration that causes owing to perforate in pressure vessel perforate position reinforcement, thereby can improve container rigidity and critical pressure) in two ends up and down; Pressure-bearing cylinder 11 by cylindrical be attached thereto the conical contraction section that connects and form; Conical contraction section is the part that air-flow mixes with nano particle.
Pressure-bearing awl tube 3 is respectively equipped with the flange arrangement that is used to be tightly connected with the joint face of pressure-bearing cylinder 11, and ring-shaped step 1101 is arranged on the flange arrangement place of pressure-bearing cylinder 11.Pressure-bearing awl tube 3 is connected with hold-down nut 8 through six fastening bolts 5 with pressure-bearing cylinder 11, seals with first sealing ring 601 and second sealing ring 602 between its joint face, and the diameter of first sealing ring 601 is greater than the diameter of second sealing ring 602.
Further, last air supply pipe 1 inserts to be gone up in the air connector 2, and last air connector 2 is bored tube 3 through being threaded with pressure-bearing; Following air supply pipe 15 inserts down in the air connectors 14, and following air connector 14 and pressure-bearing cylinder 11 are through being threaded; Compressed Gas flows into from last air supply pipe 1, flows through cavity, from air supply pipe 15 outflows down.
Concrete, nano particle oscillatory type metering device comprises taper barrel lid 4, barrel retainer ring 7, spring mechanism 9, barrel 10, exciting agency 12, blanking screen cloth 13, taper barrel lid 4 is connected through cover ring-shaped step 401 and barrel 10; Barrel retainer ring 7 is connected with barrel 10 through equally distributed three spring mechanisms 9; Exciting agency 12 cooperates with the face of cylinder 1001 of barrel through circular mating surface 1201, and the material of two mating surfaces is lucite, and connected mode is for bonding with tetrachloromethane; Blanking screen cloth 13 is fixed on the barrel 10 through net hoop 1301, carries out fastening with 1305 pairs of net hoops of screw 1304 and nut.
The top of barrel 10 is conically shaped, and the bottom is made up of two different cylinders of diameter; The junction of taper barrel lid 4 and barrel 10 is located at about 1/3rd eminences of upper taper tube of barrel 10, and taper barrel lid 4 is connected through cover ring-shaped step 401 and barrel 10; The wire side of blanking screen cloth 13 is tapered.
Here, the purpose of adding taper barrel lid 4 for barrel 10 has two: the one, and out-of-date in order to prevent in air communication, the nano particle in the barrel 10 is taken away; On the other hand, add the lid of a taper, can reduce disturbance air-flow.
After the nano particle in the barrel 10 falls from blanking screen cloth 13, by the carried away by air movement that flow through, and mix in pressure-bearing cylinder 11 bottoms and gas, gas-nano particle two phase homogeneous (uniform) fluids of formation are along air supply pipe 15 outflows down.
The wall thickness of compressed gas flow control chamber can bear the Compressed Gas of 0.5MPa.Compressed Gas will pass through the process that diffusion is earlier shunk again in the compressed gas flow control chamber; If it is improper that the structure of cavity is provided with; Then high velocity air can be because the caliber sudden change produce backflow when passing through; This part nano particle that can cause from barrel 10, falling by the reflux gas band and in the compressed gas flow control chamber, is circled round and cumulative, thereby the nano particle that falls can not all get in the mixed airflow, and the content of nano particle in the accurate control Dual-Phrase Distribution of Gas olid is caused difficulty.
In this device; Pressure-bearing awl tube 3, barrel 10, taper barrel lid 4 and blanking screen cloth 13 all adopt small-angle structure (being generally less than 30 ° small-angle structure); This structure can make high velocity air stable passing through in cavity; Do not reflux, thereby realize the carried away by air movement that nano particle that nano particle oscillatory type metering device is supplied with is all flow through, help accurately to control the content of nano particle in the Dual-Phrase Distribution of Gas olid.
With reference to Fig. 4, exciting agency 12 comprises base 1204, motor 1209, fixedly sheet metal component 1208, motor hold-down screw 1203, eccentric block 1206, eccentric block hold-down screw 1205 are formed; Base 1204 is divided into two faces; One side is interior concaved circular cambered surface 1201; Cooperate with the face of cylinder 1001 of barrel, another side is the plane that has two symmetrical boss, cooperates with motor 1209; Contain two screwed holes on each boss, the line of symmetry of the axis of interior concaved circular cambered surface and two boss is 45 ° of angles;
An axle 1207 is stretched out in the bottom of motor 1209, and eccentric block 1206 is installed on the axle 1207, and eccentric block 1206 is an interference fits with axle 1207, circumferentially uses eccentric block hold-down screw 1205 fixed positions; Have the electric wire connector 1202 that stretches out on the motor 1209; Motor 1209 is installed on the base 1204 through fixing sheet metal component 1208, and is fastening with motor hold-down screw 1203;
With reference to Fig. 5, barrel retainer ring 7 is provided with equally distributed inner convex platform 702, and inner convex platform 702 is provided with through hole, and the through hole inside fire attack has screw thread; Barrel 10 is provided with and the corresponding outer lug boss 1002 of inner convex platform, and outer lug boss 1002 is provided with connecting through hole;
It is following to utilize said apparatus to carry out the method for using that gas-nano particle two phase homogeneous (uniform) fluids generate:
(1) in barrel 10, fills it up with nano particle earlier, cover taper barrel lid 4.
(2) through the length of three spring mechanisms 9 of adjustment, make barrel 10 vertically downward.The barrel of adjusting 10 is packed in the pressure-bearing cylinder 11, whether observes barrel 10 in the center of pressure-bearing cylinder 11, note simultaneously need adjusting between the barrel of eccentric block 1206 and pressure-bearing cylinder 11 in the exciting agency 12 certain interval (＞5mm).In addition; The length of spring mechanism 9 is moderate; If spring mechanism 9 is oversize, blanking screen cloth 13 most advanced and sophisticated distances with pressure-bearing cylinder 11 conical constriction can be too near, generally requires greater than 25mm; Thereby cause fully to mix with high velocity air, also can appear at the phenomenon that barrel vibration processes decline material screen net 13 and constriction barrel are collided from the nano particle that blanking screen cloth 13 falls.
The electric wire that (3) will be communicated with motor is used from the flange of pressure-bearing cylinder 11 and is drawn, and puts two O RunddichtringOs, and two sealing rings will be placed evenly, buckles pressure-bearing awl tube 3 then, fixes with 6 fastening bolts 5 and nut 8.The pretension degree of noting bolt is bigger, because the gas pressure intensity in the compressed gas flow control chamber is higher than outside atmosphere pressure, therefore, guarantee sealing enough in the chamber.
(4) pressure-bearing is bored tube 3 up, and pressure-bearing cylinder 11 is placed on its device on the shelf that adapts with it down.
(5) open air compressor, set the pressure and the flow of gas, then Compressed Gas is fed from last air supply pipe 1, flow through cavity, air-flow is from air supply pipe 15 outflows down.
(6) treat steady air current after, set the applied voltage of motor 1209 in the exciting agency 12, begin power supply for motor 1209.Motor 1209 drives eccentric block 1206 to begin to rotate, and eccentric block 1206 vibrates owing to the asymmetric drive barrel 10 of quality together.At this moment, the nano particles in the barrel 10 can be because gravity effect and falling from blanking screen cloth 13, the carried away by air movement that is flow through, and mix at contraction section and the gas of cavity, gas-nano particle two phase homogeneous (uniform) fluids of formation are along air supply pipe 15 outflows down.
Claims (10)
1. gas-nano particle two phase homogeneous (uniform) fluid generating apparatus is characterized in that, comprise the compressed gas flow control chamber, in its cavity, are provided with nano particle oscillatory type metering device; The process that Compressed Gas shrinks through diffusion earlier in the compressed gas flow control chamber again, the carried away by air movement that the nano particle that nano particle oscillatory type metering device is supplied with is flow through forms gas-nano particle two phase homogeneous (uniform) fluids and flows out;
The compressed gas flow control chamber comprises pressure-bearing awl tube (3) and the pressure-bearing cylinder (11) that is tightly connected, and the top of pressure-bearing awl tube (3) is provided with air supply pipe (1), and the bottom of pressure-bearing cylinder (11) is provided with down air supply pipe (15);
Nano particle oscillatory type metering device comprises barrel (10), and the entrance point of barrel (10) is provided with taper barrel lid (4), and the port of export is provided with blanking screen cloth (13); Barrel retainer ring (7) is connected with barrel (10) through equally distributed several spring mechanisms (9); Exciting agency (12) is fixedly connected with barrel (10), and exciting agency (12) adopts the eccentric block rotation to produce vibration and drives barrel (10) vibration;
The junction of pressure-bearing awl tube (3) and pressure-bearing cylinder (11) is provided with ring-shaped step (1101), and barrel (10) is connected through barrel retainer ring (7) and ring-shaped step (1101) and is installed in the compressed gas flow control chamber.
2. gas-nano particle two phase homogeneous (uniform) fluid generating apparatus as claimed in claim 1 is characterized in that, described pressure-bearing is bored the taper shape that is shaped as of tube (3), and it is respectively equipped with first stiffening ring (301) and second stiffening ring (302) in two ends up and down; Pressure-bearing cylinder (11) by cylindrical be attached thereto the conical contraction section that connects and form;
Pressure-bearing awl tube (3) is respectively equipped with the flange arrangement that is used to be tightly connected with the joint face of pressure-bearing cylinder (11), and ring-shaped step (1101) is arranged on the flange arrangement place of pressure-bearing cylinder (11).
3. according to claim 1 or claim 2 gas-nano particle two phase homogeneous (uniform) fluid generating apparatus; It is characterized in that; Last air supply pipe (1) is connected through last air connector (2) and pressure-bearing awl tube (3), and following air supply pipe (15) is connected with pressure-bearing cylinder (11) through following air connector (14);
Pressure-bearing awl tube (3) is connected with hold-down nut (8) through a plurality of fastening bolts (5) with pressure-bearing cylinder (11); Seal with first sealing ring (601) and second sealing ring (602) between its joint face, the diameter of first sealing ring (601) is greater than the diameter of second sealing ring (602).
4. gas-nano particle two phase homogeneous (uniform) fluid generating apparatus as claimed in claim 3 is characterized in that, in the air connector (2), last air connector (2) is bored tube (3) through being threaded with pressure-bearing in last air supply pipe (1) insertion; Following air supply pipe (15) inserts down in the air connector (14), and following air connector (14) and pressure-bearing cylinder (11) are through being threaded; Compressed Gas flows into from last air supply pipe (1), flows through cavity, from air supply pipe (15) outflow down.
5. like claim 1 or 4 described gas-nano particle two phase homogeneous (uniform) fluid generating apparatus, it is characterized in that the top of barrel (10) is conically shaped, the bottom is made up of two different cylinders of diameter; The junction of taper barrel lid (4) and barrel (10) is located at about 1/3rd eminences of upper taper tube of barrel (10), and taper barrel lid (4) is connected through cover ring-shaped step (401) and barrel (10); The wire side of blanking screen cloth (13) is tapered;
After the nano particle in the barrel (10) falls from blanking screen cloth (13), by the carried away by air movement that flow through, and mix in pressure-bearing cylinder (11) bottom and gas, gas-nano particle two phase homogeneous (uniform) fluids of formation are along air supply pipe (15) outflow down.
6. gas-nano particle two phase homogeneous (uniform) fluid generating apparatus as claimed in claim 1; It is characterized in that exciting agency (12) is fixedly connected with barrel (10) with the bonding on the face of cylinder (1001) of barrel through the interior concaved circular cambered surface (1201) that cooperatively interacts;
Exciting agency (12) comprises base (1204); Base (1204) is provided with motor (1209); Motor (1209) is provided with connecting axle (1207), and eccentric block (1206) is installed in connecting axle (1207) and goes up and be fixedly connected through hold-down screw (1205); Motor (1209) axially and barrel (10) axially be 45 ° of angles;
Blanking screen cloth (13) is fixed on the port of export of barrel (10) through net hoop (1301), and wire side (1302) is through being fixed on screw (1304) and nut (1305) on the net hoop (1301).
7. gas-nano particle two phase homogeneous (uniform) fluid generating apparatus as claimed in claim 6; It is characterized in that; The one side of base (1204) is interior concaved circular cambered surface (1201); Another side is the plane that is connected with motor (1209) that has two symmetrical boss, and each boss is provided with screwed hole, and the axis of interior concaved circular cambered surface (1201) and the line of symmetry of two boss are 45 ° of angles;
Motor (1209) is provided with the electric wire connector (1202) that stretches out, and the power supply adjustable with voltage is connected; Motor (1209) is installed in (1204) on the base through fixing sheet metal component (1208), and is fastening with motor hold-down screw (1203).
8. gas-nano particle two phase homogeneous (uniform) fluid generating apparatus as claimed in claim 1 is characterized in that described barrel retainer ring (7) is provided with equally distributed inner convex platform (702), and inner convex platform (702) is provided with through hole, and the through hole inside fire attack has screw thread; Barrel (10) is provided with and the corresponding outer lug boss of inner convex platform (1002), and outer lug boss (1002) is provided with connecting through hole;
Spring mechanism (9) comprises extension spring (903), and two of extension spring (903) is connected on hex head screw (902) and the button-headed screw (904); Spring hold-down nut (901) is pressed on the head of hex head screw (902) with extension spring (903), and hex head screw (902) is threaded with inner convex platform (702); Button-headed screw (904) passes the connecting through hole of outer lug boss (1002), carries out fastening with clamp nut (905); Hex head screw (902) can be in the screwed hole of inner convex platform (702) up-down adjustment.
9. like any one described gas-nano particle two phase homogeneous (uniform) fluid generating apparatus of claim 1～8; It is characterized in that the top of described pressure-bearing awl tube (3), barrel (10), taper barrel lid (4) and blanking screen cloth (13) all adopt cone angle less than 30 ° small-angle structure.
10. like any one described gas-nano particle two phase homogeneous (uniform) fluid generating apparatus of claim 9, it is characterized in that the cone angle of pressure-bearing awl tube (3) is 18 °, 24 ° of the cone angles on barrel (10) top; Observe the center that barrel (10) is positioned at pressure-bearing cylinder (11), the gap between the eccentric block (1206) in the exciting agency (12) and the barrel of pressure-bearing cylinder (11) is greater than 5mm; The gap of the bottom of the tip of blanking screen cloth (13) and pressure-bearing cylinder (11) is greater than 25mm.
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| CN201210296536.3A CN102794122B (en) | 2012-08-20 | 2012-08-20 | Device for generating gas-nanoparticle two-phase uniform fluid |
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| CN201210296536.3A CN102794122B (en) | 2012-08-20 | 2012-08-20 | Device for generating gas-nanoparticle two-phase uniform fluid |
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| CN102794122B CN102794122B (en) | 2014-04-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308447A (en) * | 2013-05-31 | 2013-09-18 | 西安交通大学 | Contacting and rubbing device of nano-particle air film static-pressure thrust bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103308447A (en) * | 2013-05-31 | 2013-09-18 | 西安交通大学 | Contacting and rubbing device of nano-particle air film static-pressure thrust bearing |
| CN103308447B (en) * | 2013-05-31 | 2015-07-01 | 西安交通大学 | Contacting and rubbing device of nano-particle air film static-pressure thrust bearing |
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| Publication number | Publication date |
|---|---|
| CN102794122B (en) | 2014-04-23 |
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