CN107462501A - Online grain diameter measurement and synchronous collection system for micro-nano particle in multiphase flow - Google Patents
Online grain diameter measurement and synchronous collection system for micro-nano particle in multiphase flow Download PDFInfo
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- CN107462501A CN107462501A CN201710689214.8A CN201710689214A CN107462501A CN 107462501 A CN107462501 A CN 107462501A CN 201710689214 A CN201710689214 A CN 201710689214A CN 107462501 A CN107462501 A CN 107462501A
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- 239000002105 nanoparticle Substances 0.000 title claims abstract description 72
- 238000005259 measurement Methods 0.000 title claims abstract description 39
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 38
- 239000002245 particle Substances 0.000 claims abstract description 67
- 239000007921 spray Substances 0.000 claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 59
- 239000004449 solid propellant Substances 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 6
- 230000004044 response Effects 0.000 claims abstract description 5
- 230000032258 transport Effects 0.000 claims abstract description 4
- 230000008450 motivation Effects 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 238000012360 testing method Methods 0.000 claims description 20
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 13
- 239000003546 flue gas Substances 0.000 claims description 13
- 210000004907 gland Anatomy 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000003380 propellant Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 7
- 239000013618 particulate matter Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000004616 Pyrometry Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 239000000567 combustion gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means
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Abstract
Online grain diameter measurement and the synchronous collection system disclosed by the invention for being used for micro-nano particle in multiphase flow, belongs to the online grain diameter measurement of micro-nano particle and synchronous collection field in solid propellant rocket multiphase flow.The present invention includes collecting air flue, current divider, high pressure flexible metallic conduit and pressurized keg；Current divider is responsible for each leading into Fan spray head after the liquid of pressurization is divided into multichannel；High pressure flexible metallic conduit transports for highly pressurised liquid；Pressurized keg is used to store and pressurized jet liquid；Air flue is collected to be used to spray liquid to collect the micro-nano particle in the high temperature and high speed multiphase flow in solid engines plume.The present invention can realize the online grain diameter measurement and synchronous collection of micro-nano particle in multiphase flow, have the advantage that：Micro-nano granules in the multiphase flow of high speed ejection are slowed down rapidly, avoid high velocity particle bombardment in equipment wall surface；The multiphase flow high temperature particle of ejection is cooled rapidly, avoids high-temperature particle from contacting secondary response with ambient atmos；Enough different-grain diameters and the particle of state can be collected into.
Description
Technical field
The invention belongs to the online grain diameter measurement of micro-nano particle and synchronous collection field in solid propellant rocket multiphase flow, relate to
And online grain diameter measurement and the synchronous collection system for micro-nano particle in multiphase flow.
Background technology
In the test of solid propellant rocket aluminized propellant, due to collision process of the particle inside jet pipe can not be described
And can not simulated combustion room completely truth, therefore in order to test alumina particles burning and reunion situation in propellant, often
For the particle diameter of residue particles as reference, the test equipment often used is laser particle size in the combustion gas multiphase flow of test ejection jet pipe
Instrument, during engine real work, the muzzle velocity of spout can reach more than 1km/s, because the recognition speed of laser particle analyzer has
Limit, and laser particle analyzer is only capable of testing the particle diameter of particle on a line, measurement object is limited, therefore credible result degree is relatively low.For
The accuracy of checking particle size analyzer result, product grain particle diameter distribution is obtained after can combustion product be collected using Electronic Speculum.Solid
The combustion gas that engine sprays has the characteristics of high temperature and high speed, and easily sprays and be attached to equipment surface, and collection difficulty is larger, mesh
Before to be related to powder collection mode in the combustion gas of this kind of situation less.
The content of the invention
What online grain diameter measurement and the synchronous collection system disclosed by the invention for being used for micro-nano particle in multiphase flow to be solved
Technical problem is：The online grain diameter measurement and synchronous collection of micro-nano particle in multiphase flow are realized, and tool has the advantage that：(1) will
Micro-nano granules slow down rapidly in the multiphase flow sprayed at a high speed, avoid high velocity particle bombardment in equipment wall surface；(2) by the more of ejection
Mutually stream high temperature particle cools rapidly, avoids high-temperature particle from being contacted with ambient atmos and triggers secondary response；(3) foot can be collected into
Measure different-grain diameter and the particle of state.
The purpose of the present invention is achieved through the following technical solutions.
Online grain diameter measurement and the synchronous collection system disclosed by the invention for being used for micro-nano particle in multiphase flow includes collecting
Air flue, current divider, high pressure flexible metallic conduit and pressurized keg.Described current divider is responsible for the liquid of pressurization being divided into after multichannel to be led to respectively
Enter Fan spray head；High pressure flexible metallic conduit transports for highly pressurised liquid；Pressurized keg is used to store and pressurized jet liquid.Described receipts
Collection air flue is used to spray liquid to collect the micro-nano particle in the high temperature and high speed multiphase flow in solid engines plume；Collect air flue
Including sending and receiving motivation sleeve, Ka Gai, laser sleeve, abutment sleeve, support, hex screw, pad, hex nut, switching sleeve,
Collect sleeve, closure, collecting tank, screw thread adapter, soket head cap screw, pad, gland, shower nozzle switching, Fan spray head, big by six
Angle screw and backing plate.Described sending and receiving motivation sleeve is circular ring type structure, and one end is used to connect solid propellant rocket, and the other end is
Flange arrangement, the annular boss for connection card lid is welded with sending and receiving motivation in sending and receiving motivation sleeve.Ka Gai is used for will
Laser sleeve is fixed on sending and receiving motivation sleeve.Abutment sleeve is threadedly attached on laser sleeve, and abutment sleeve also has
The helicitic texture of laser particle analyzer is connected, helicitic texture connects laser particle analyzer Laser emission end and receiving terminal, laser grain respectively
The granularity that instrument is used for micro-nano particle in online pyrometry high-speed multiphase flow is spent, the laser optical path of laser particle analyzer transmitting passes through sending and receiving
Annular boss, Ka Gai and the laser sleeve of motivation sleeve form internal cavities, that is, realize and ensure that launch laser particle analyzer swashs
Light exempts from external light source influence, and avoids influence of the external air flow to plume；Described support passes through big hex screw and backing plate
Fixed sending and receiving motivation sleeve and collect sleeve, there is through hole and screwed hole on backing plate, through backing plate through hole screw again through branch
Frame chute is connected to the screwed hole on sleeve, and the screw for being connected to backing plate upper screwed hole initially passes through bracket chute, is then connected to
Backing plate upper screwed hole；And there is a counterbore through hole support bottom, hex screw can be in the slide on support, for adjusting each set
Cylinder height；And there is through hole support bottom, for being fixed on test bay by air flue is collected by screw.Described switching sleeve is
Variable-diameter structure, the water curtain bombardment for preventing bigger diameter end Fan spray head from spraying are rebounded sending and receiving motivation in drop caused by pipeline wall
Sleeve left end is connect at laser sleeve, while realizes that powder collection and laser particle analyzer survey granularity online, and test is non-interference；Turn
The big miner diameter end of female connector cylinder has flange arrangement.The collection sleeve is circular ring type structure, and there is flange arrangement both ends open, one end,
In non-interference outside wall surface N1 equally distributed Fan spray heads are installed on everywhere, sleeve lower end is provided with through hole, outside through hole
The guide rail of collecting tank can be placed by being welded with, and the through hole of sleeve lower end, the height that solid propellant rocket sprays are collected in collecting tank covering
On the liquid water curtain that Fan spray head sprays, the liquid with micro-nano particle passes through receipts for micro-nano particle bombardment in warm high-speed multiphase flow
The through hole of collection sleeve lower end is flowed ultimately into collecting tank, is reached and is collected micro-nano particle purpose in high temperature and high speed multiphase flow.So as to
Realize the online grain diameter measurement and synchronous collection of micro-nano particle in multiphase flow.Engine plume can be reduced after water curtain absorbs
Flue gas and particulate matter, bombardment is reduced to the flue gas and particle of equipment surface, increases equipment life.
Preferably, laser particle analyzer position and Fan spray head interval are larger and have step barrier, realize micro- in multiphase flow
Receive particle online grain diameter measurement and synchronous collection it is non-interference.
Preferably, change class of liquids and moulding pressure according to actual conditions, so as to change the muzzle velocity of liquid, with
Adapt to the particle of different conditions.
Preferably, selecting diverse location and quantity N1 Fan spray head according to actual conditions, change water curtain quantity and position
Put, realize optimal collecting effect.
Preferably, in order to avoid particle is deposited in gap, the collection preferred cambered surface of groove bottom.
The assembling side disclosed by the invention for being used for online grain diameter measurement and the synchronous collection system of micro-nano particle in multiphase flow
Method is：First air flue is collected in assembling, by sending and receiving motivation sleeve, switching sleeve and is collected sleeve head and the tail placement, is made sending and receiving motivation sleeve
Same plane is in the projective structure for connecing Ka Gai and closure respectively for collecting sleeve, and uses hex screw, pad and six
Angle nut is fixed, and is then welded on shower nozzle switching and is collected at the reserved hole position of sleeve, then Fan spray head is screwed into screw thread adapter
On, then part is placed in shower nozzle switching boss, covers gland, rotating fan shower nozzle, the fan-shaped water for spraying Fan spray head
Gland is then compressed parallel to the bucket end face for collecting sleeve, prevents Fan spray head from turning by curtain using soket head cap screw and pad
It is dynamic, after installing all Fan spray heads, laser sleeve is fixed on sending and receiving motivation sleeve both ends using Ka Gai, screws on positioning sleeve
The air flue connected, is then placed on three supports by cylinder, and air flue is fixed using big hex screw and backing plate, i.e., just forms complete
Collection air flue.Pressurized keg is subsequently assembled, by relief valve, pressure gauge and normally closed solenoid valve are connected through a screw thread liquid container respectively
At the corresponding screwed hole of bucket, the liquid used will be collected by injecting liquid container bucket at hole reserved at plug, then using stifled
Head sealing, pressurization barrel assembly are completed.The screw thread adapter collected on air flue, root are then connected to using high pressure flexible metallic conduit one end
Connected according to the Fan spray head quantity being actually needed with position selection pipeline, the other end is connected to current divider, is using a high pressure
The outlet of normally closed solenoid valve on connection by metal hose current divider liquid inlet and pressurized keg, finally gas-pressurized steel cylinder is passed through
Pressure-reducing valve and high pressure flexible metallic conduit are connected at pressurized keg threaded upper ends mouth, i.e., composition is completely used for micro-nano particle in multiphase flow
Online grain diameter measurement and synchronous collection system.
The work side disclosed by the invention for being used for online grain diameter measurement and the synchronous collection system of micro-nano particle in multiphase flow
Method is：Sending and receiving motivation barrel forward end is first connected to the solid propellant rocket being fixed on thrust platform, then will collect and use
Liquid out of the hole that plug is reserved injection pressurized keg, then sealed, then gases at high pressure are passed through in pressurized keg, treated using plug
In pressurized keg after pressure stability, normally closed solenoid valve is powered, and valve is opened, after liquid reaches current divider by high pressure flexible metallic conduit,
It is divided into multichannel, is then sprayed at a high speed from Fan spray head, multiple tracks sector water curtain is formed under high pressure effect.Open laser particle size
Instrument, the on-line testing for micro-nano particle in high temperature and high speed multiphase flow.Subsequent engine ignition, high temperature caused by propellant combustion
High pressure multiphase flow is sprayed at a high speed and bombarded on the multiple tracks sector water curtain sprayed in Fan spray head from spout, in HTHP multiphase flow
The temperature and speed of micro-nano particle reduce rapidly, avoid micro-nano particle grain in high temperature and high speed multiphase flow from bombarding in equipment wall surface, keep away
Exempt from high-temperature particle and generation secondary response, in the presence of several fan-shaped water curtain, most of propellant combustions are contacted with ambient atmos
Caused HTHP micro-nano particle is decelerated cooling；Micro-nano particle is final by the through hole for collecting sleeve lower end with liquid water curtain
It is flowed into collecting tank, reaches and collect micro-nano particle purpose in high temperature and high speed multiphase flow；In addition, engine plume is inhaled by water curtain
Flue gas and particulate matter greatly reduce after receipts, reduce bombardment to the flue gas and particle of equipment surface, increase equipment life.Treat engine
Power of electromagnetic valve is closed after hours, the liquid mixture in collecting tank is collected, opens relief valve, discharges gas in pressurized keg
Body pressure release, plug is opened after release, be then powered to normally closed solenoid valve, reclaim remaining liq, then cleaning is collected
Air flue, prevent equipment corrosion.Finally, by liquid evaporation, micro-nano particle in multiphase flow will be obtained in bucket, particle is tested using Electronic Speculum
Particle diameter, that is, the online grain diameter measurement and synchronous collection of micro-nano particle in multiphase flow are realized, improve particle diameter testing efficiency.
Online grain diameter measurement and synchronous collection system for micro-nano particle in multiphase flow is mainly by collection air flue, shunting
Device, high pressure flexible metallic conduit and pressurized keg composition, it is simple in construction；And class of liquids and pressurization pressure can be changed according to actual conditions
Power, so as to change the muzzle velocity of liquid, to adapt to the particle of different conditions, adaptability and plasticity are strong.
Beneficial effect：
1. online grain diameter measurement and the synchronous collection system disclosed by the invention for being used for micro-nano particle in multiphase flow, in sector
There is the laser sleeve that connection particle size analyzer surveys granularity online between shower nozzle and solid propellant rocket, in laser sleeve and Fan spray head
Between also have variable-diameter structure, reduce bombardment to collection device bounce-back and influence of the drop to laser that flows back, can enter simultaneously
Row is online to be surveyed granularity and collects particle and survey granularity, and both are non-interference, as a result can two-phase checking, improve testing efficiency and credible
Degree, realize the particle diameter on-line synchronous test of micro-nano particle and collect.
2. online grain diameter measurement and the synchronous collection system disclosed by the invention for being used for micro-nano particle in multiphase flow, using pressure
To liquid pressing, the liquid after pressurization sprays contracting gas from high pressure Fan spray head, and muzzle velocity is more than 100m/s, and from jet pipe one
The combustion gas similar rate sprayed at set a distance, contribute to water curtain absorption flue gas and particle, improve collection efficiency.
3. online grain diameter measurement and the synchronous collection system disclosed by the invention for being used for micro-nano particle in multiphase flow, can basis
Actual conditions change moulding pressure, so as to change the muzzle velocity of liquid, to adapt to the particle of friction speed, and difference may be selected
Position and the Fan spray head of quantity, change water curtain quantity and position, reach different collecting effects, adaptability and plasticity are strong.
4. online grain diameter measurement and the synchronous collection system disclosed by the invention for being used for micro-nano particle in multiphase flow, high temperature are high
Fast multiphase flow flue gas and particulate matter after water curtain absorbs greatly reduce, and the flue gas and particle of bombardment to equipment surface are reduced, if
The standby life-span is higher.
5. it is disclosed by the invention be used for multiphase flow in micro-nano particle online grain diameter measurement and synchronous collection system, mainly by
Air flue, current divider, high pressure flexible metallic conduit and pressurized keg composition are collected, simple in construction, reliability and applicability are high.
Brief description of the drawings
Fig. 1 is injection apparatus overall structure diagram；
Fig. 2 is collection air passage structure schematic diagram；
Fig. 3 is collection air flue A-A cross-sectional views；
Fig. 4 is collection air flue A-A section partial views I；
Fig. 5 is collection air flue B-B cross-sectional views；
Fig. 6 is collection air flue B-B section partial views II；
Fig. 7 is pressurized keg structural representation；
Fig. 8 is pressurized keg C-C cross-sectional views；
Wherein, 1- sending and receiving motivation sleeve, 2- Ka Gai, 3- laser sleeves, 4- abutment sleeves, 5- supports, 6- hex screws, 7-
Pad, 8- hex nuts, 9- switching sleeves, 10- collect sleeve, 11- closures, 12- collecting tanks, 13- screw thread adapters, 14-
Soket head cap screw, 15- pads, 16- glands, the switching of 17- shower nozzles, 18- Fan spray heads, the big hex screws of 19-, 20- backing plates, 21-
Relief valve, 22- pressure gauges, 23- liquid container buckets, 24- normally closed solenoid valves, 25- plugs.
Embodiment
In order to better illustrate objects and advantages of the present invention, the embodiment of the present invention is come with reference to diagram
Further illustrate.
Embodiment 1：
The purpose of the present embodiment is achieved through the following technical solutions.
Disclosed online grain diameter measurement and the synchronous collection system for being used for micro-nano particle in multiphase flow of the present embodiment includes receiving
Collect air flue A, current divider B, high pressure flexible metallic conduit C and pressurized keg D, as shown in Figure 1.Described current divider B is responsible for the liquid of pressurization
Body each leads into Fan spray head after being divided into multichannel；Metal hose C transports for highly pressurised liquid；Pressurized keg D is used to store and pressurize
Spray liquid.Described collection air flue A is used to spray liquid to collect in the high temperature and high speed multiphase flow in solid engines plume
Micro-nano particle；Collecting air flue A includes long 500mm, sending and receiving motivation sleeve 1 that internal diameter is 150mm, card lid 2, laser sleeve 3, calmly
Position sleeve 4, support 5, hex screw 6, pad 7, hex nut 8, switching sleeve 9, long 500mm, internal diameter are 207mm collection set
Cylinder 10, closure 11, collecting tank 12, screw thread adapter 13, soket head cap screw 14, pad 15, gland 16, shower nozzle switching 17, hole
Footpath 0.66mm, fan-shaped Fan spray head 18, big hex screw 19 and the backing plate 20 of 110 ° of angle, as shown in Fig. 2,3,4 and 6.It is described
Sending and receiving motivation sleeve 1 be circular ring type structure, one end is used to connect solid propellant rocket, and the other end is flange arrangement, in sending and receiving
Motivation sleeve 1 is welded with the annular boss for connection card lid 2 at sending and receiving motivation.Card lid 2 is used to fix in laser sleeve 3
On sending and receiving motivation sleeve 1.Abutment sleeve 4 is threadedly attached on laser sleeve 3, and abutment sleeve 4 also has connection laser
The helicitic texture of particle size analyzer, helicitic texture connect laser particle analyzer Laser emission end and receiving terminal respectively, and laser particle analyzer is used for
The granularity of micro-nano particle in online pyrometry high-speed multiphase flow, the laser optical path of laser particle analyzer transmitting pass through sending and receiving motivation sleeve
1 annular boss, card lid 2 and laser sleeve 3 forms internal cavities, that is, realizes that the laser for ensureing to launch laser particle analyzer is exempted from
External light source influences, and avoids influence of the external air flow to plume, as shown in Figure 2；Described support 5 passes through big hex screw 19
Sending and receiving motivation sleeve 1 is fixed with backing plate 20 and collects sleeve 10, there is through hole and screwed hole on backing plate, through the spiral shell of backing plate through hole
Nail is connected to the screwed hole on sleeve again through bracket chute, and the screw for being connected to backing plate upper screwed hole initially passes through bracket chute,
Backing plate upper screwed hole is then connected to, as illustrated in Figures 5 and 6；And there is counterbore through hole the bottom of support 5, hex screw can be in support 5
On slide, for adjusting each sleeve height；And there is through hole the bottom of support 5, for being fixed by screw by air flue A is collected
On test bay.Described switching sleeve 9 is variable-diameter structure, and the water curtain for preventing bigger diameter end Fan spray head from spraying is bombarded in pipe
Drop caused by road wall rebounds the connecing at laser sleeve 3 of the left end of sending and receiving motivation sleeve 1, can realize powder collection and laser simultaneously
Particle size analyzer surveys granularity online, and test is non-interference；9 big miner diameter end of switching sleeve has flange arrangement.It is described collection sleeve 10 be
There is flange arrangement circular ring type structure, both ends open, one end, and 12 are provided with everywhere in non-interference outside wall surface is uniformly distributed
Fan spray head 18, sleeve lower end is provided with through hole, and through hole outside weld is connected to the guide rail for the collecting tank 12 that can place cambered surface, collecting tank 12
The through hole of sleeve 10 lower end is collected in covering, in the high temperature and high speed multiphase flow that solid propellant rocket sprays micro-nano particle bombardment fanning
On the liquid water curtain that shape shower nozzle 18 sprays, the liquid with micro-nano particle is flowed ultimately into by collecting the through hole of the lower end of sleeve 10
In collecting tank 12, reach and collect micro-nano particle purpose in high temperature and high speed multiphase flow.So as to realize micro-nano particle in multiphase flow
Line grain diameter measurement and synchronous collection.Engine plume flue gas and particulate matter after water curtain absorbs greatly reduce, and reduce bombardment and arrive
The flue gas and particle of equipment surface, increase equipment life.
The disclosed assembling for being used for online grain diameter measurement and the synchronous collection system of micro-nano particle in multiphase flow of the present embodiment
Method is：First air flue A is collected in assembling, and sending and receiving motivation sleeve 1, switching sleeve 9 and collection sleeve 10 are placed from beginning to end, move sending and receiving
Mantle cylinder 1 is in same plane with the projective structure for connecing card lid 2 and closure 11 respectively for collecting sleeve 10, and uses hexagonal spiral shell
Nail 6, pad 7 and hex nut 8 are fixed, and shower nozzle switching 17 then is welded on into collection sleeve 10 reserves at hole position, then by 12
Fan spray head 18 is screwed on screw thread adapter 13, and part then is placed on into shower nozzle transfers in 17 boss, covers gland 16, rotation fan
Shape shower nozzle 18, make the fan-shaped water curtain that Fan spray head 18 sprays parallel to the bucket end face for collecting sleeve 10, then using interior hexagonal spiral shell
Nail 14 and pad 15 compress gland 16, Fan spray head 18 after installing all Fan spray heads 18, is used Ka Gai from rotating
Laser sleeve 3 is fixed on the both ends of sending and receiving motivation sleeve 1 by 2, screws on abutment sleeve 4, the air flue connected then is placed on into three
On support, air flue is fixed using big hex screw 19 and backing plate 20, i.e., composition is complete collects air flue A.It is subsequently assembled pressurized keg
D, pressurized keg D internal diameter are 199mm, high 600m, maximum capacity 42L；By relief valve 21, pressure gauge 22 and normally closed solenoid valve 24
It is connected through a screw thread respectively at 23 corresponding screwed hole of liquid container bucket, the liquid that collection is used passes through the hole reserved at plug 25
Place's injection liquid container bucket 23, is then sealed using plug 25, and pressurized keg D assemblings are completed, as shown in FIG. 7 and 8.Then using high
Pressure metal hose C one end is connected to the screw thread adapter 13 collected on air flue A, is counted according to the Fan spray head 18 being actually needed and position
Selection pipeline connection is put, the other end is connected to current divider B, is using a high pressure flexible metallic conduit C connection current divider B liquid inlet
With the outlet of the normally closed solenoid valve 24 on pressurized keg D, finally gas-pressurized steel cylinder is connected by pressure-reducing valve and high pressure flexible metallic conduit C
It is connected at pressurized keg D threaded upper ends mouths, i.e., composition is completely used for the online grain diameter measurement of micro-nano particle and synchronization in multiphase flow
Collection system, as shown in Figure 1.
The disclosed work for being used for online grain diameter measurement and the synchronous collection system of micro-nano particle in multiphase flow of the present embodiment
Method is：The front end of sending and receiving motivation sleeve 1 is first connected to the solid fire for the combustion chamber internal diameter Φ=60mm being fixed on thrust platform
Arrow engine, the liquid used then will be collected out of the hole that plug 25 is reserved injection pressurized keg D, it is then close using plug 25
Envelope, then the nitrogen of 3.5MPa-5.0MPa pressure is passed through in pressurized keg D, in bucket D to be pressurised after pressure stability, normally closed electricity is set
The conduction time of magnet valve 24 is 8s, and energization late gate is opened, and after liquid reaches current divider D by high pressure flexible metallic conduit C, is divided into more
Road, then sprayed at a high speed from Fan spray head 18, multiple tracks sector water curtain is formed under high pressure effect.Laser particle analyzer is opened, is used for
The on-line testing of micro-nano particle in high temperature and high speed multiphase flow.Subsequent engine ignition, engine operating duration 3s, propellant combustion
HTHP multiphase flow caused by burning is sprayed at a high speed and bombarded on the multiple tracks sector water curtain sprayed in Fan spray head 18 from spout, high
The temperature of micro-nano particle and speed reduce rapidly in warm high pressure multiphase flow, avoid micro-nano particle grain in high temperature and high speed multiphase flow from bombarding
In equipment wall surface, avoid high-temperature particle from being contacted with ambient atmos and secondary response occurs, in the presence of several fan-shaped water curtain, mostly
HTHP micro-nano particle caused by number propellant combustion is decelerated cooling；Micro-nano particle is with liquid water curtain by collecting sleeve 10
The through hole of lower end is flowed ultimately into collecting tank 12, is reached and is collected micro-nano particle purpose in high temperature and high speed multiphase flow；In addition, start
Machine plume flue gas and particulate matter after water curtain absorbs greatly reduce, and reduce bombardment to the flue gas and particle of equipment surface, increase
Equipment life.Treat that engine closes power of electromagnetic valve after hours, the liquid mixture in collecting tank is collected, open pressure release
Valve 21, gas pressure release in pressurized keg D is discharged, plug 25 is opened after release, is then powered to normally closed solenoid valve 24, returned
Remaining liq is received, air flue A is collected in then cleaning, prevents equipment corrosion., by liquid evaporation, it will finally be obtained micro- in multiphase flow in bucket
Receive particle, test grain diameter using Electronic Speculum, that is, realize the online grain diameter measurement and synchronous collection of micro-nano particle in multiphase flow, carry
High particle diameter testing efficiency.
The object, technical solutions and advantages of the present invention are further described for above-described description, are answered
Understand, the foregoing is only the specific implementation process of the present invention, for explaining the present invention, be not intended to limit the present invention
Protection domain, any modification, equivalent substitution and improvements done within the spirit and principles of the invention etc., should be included in
Within protection scope of the present invention.
Claims (7)
1. online grain diameter measurement and the synchronous collection system for micro-nano particle in multiphase flow, it is characterised in that：Including collecting gas
Road (A), current divider (B), high pressure flexible metallic conduit (C) and pressurized keg (D)；Described current divider (B) is responsible for the liquid point of pressurization
To each lead into Fan spray head after multichannel；High pressure flexible metallic conduit (C) transports for highly pressurised liquid；Pressurized keg (D) be used for store and
Pressurized jet liquid；Described collection air flue (A) is more to collect the high temperature and high speed in solid engines plume for spraying liquid
Micro-nano particle in mutually flowing；Collecting air flue (A) includes sending and receiving motivation sleeve (1), Ka Gai (2), laser sleeve (3), abutment sleeve
(4), support (5), hex screw (6), pad (7), hex nut (8), switching sleeve (9), collection sleeve (10), closure
(11), collecting tank (12), screw thread adapter (13), soket head cap screw (14), pad (15), gland (16), shower nozzle switching (17),
Fan spray head (18), big hex screw (19) and backing plate (20)；Described sending and receiving motivation sleeve (1) is circular ring type structure, one end
For connecing solid propellant rocket, the other end is flange arrangement, and use is welded with sending and receiving motivation in sending and receiving motivation sleeve (1)
Annular boss in connection card lid (2)；Ka Gai (2) is used to laser sleeve (3) being fixed on sending and receiving motivation sleeve (1)；Positioning
Sleeve (4) is threadedly attached on laser sleeve (3), and abutment sleeve (4) also has the helicitic texture of connection laser particle analyzer,
Helicitic texture connects laser particle analyzer Laser emission end and receiving terminal respectively, and laser particle analyzer is used for online pyrometry high speed multiphase
The granularity of micro-nano particle in stream, the laser optical path of laser particle analyzer transmitting pass through annular boss, the Ka Gai of sending and receiving motivation sleeve (1)
(2) and laser sleeve (3) forms internal cavities, that is, realizes that the laser for ensureing to launch laser particle analyzer exempts from external light source shadow
Ring, and avoid influence of the external air flow to plume；Described support (5) is connect by big hex screw (19) and backing plate (20) fixation
Engine sleeve (1) and collect sleeve (10), there is through hole and screwed hole on backing plate, through backing plate through hole screw again through branch
Frame chute is connected to the screwed hole on sleeve, and the screw for being connected to backing plate upper screwed hole initially passes through bracket chute, is then connected to
Backing plate upper screwed hole；And there is a counterbore through hole support (5) bottom, hex screw can be in the slide on support (5), for adjusting
Save each sleeve height；And there is through hole support (5) bottom, test bay is fixed on for air flue (A) will to be collected by screw；It is described
Switching sleeve (9) be variable-diameter structure, for prevent bigger diameter end Fan spray head (18) spray water curtain bombardment pipeline wall produce
What raw drop rebounded sending and receiving motivation sleeve (1) left end meets laser sleeve (3) place, can realize powder collection and laser grain simultaneously
Degree instrument surveys granularity online, and test is non-interference；The big miner diameter end of switching sleeve (9) has flange arrangement；The collection sleeve (10)
There is flange arrangement for circular ring type structure, both ends open, one end, N1 are provided with everywhere in non-interference outside wall surface uniformly divides
The Fan spray head (18) of cloth, sleeve lower end are provided with through hole, and through hole outside weld is connected to the guide rail that can place collecting tank (12), collecting tank
(12) through hole of sleeve (10) lower end is collected in covering, and micro-nano particle bangs in the high temperature and high speed multiphase flow that solid propellant rocket sprays
Hit on the liquid water curtain sprayed in Fan spray head (18), the liquid with micro-nano particle is by collecting the through hole of sleeve (10) lower end
Flow ultimately into collecting tank (12), reach and collect micro-nano particle purpose in high temperature and high speed multiphase flow.
2. being used for online grain diameter measurement and the synchronous collection system of micro-nano particle in multiphase flow as claimed in claim 1, it is special
Sign is：First air flue (A) is collected in assembling, by sending and receiving motivation sleeve (1), switching sleeve (9) and collects sleeve (10) head and the tail placement,
Make sending and receiving motivation sleeve (1) and collect the projective structure for connecing Ka Gai (2) and closure (11) respectively of sleeve (10) in same
Plane, and using hex screw (6), pad (7) and hex nut (8) fixation, then by shower nozzle transfer (17) be welded on collection
Sleeve (10) is reserved at hole position, then Fan spray head (18) is screwed on screw thread adapter (13), and part then is placed on into shower nozzle turns
Connect in (17) boss, cover gland (16), rotating fan shower nozzle (18), make the fan-shaped water curtain that Fan spray head (18) sprays parallel to
The bucket end face of sleeve (10) is collected, then gland (16) is compressed using soket head cap screw (14) and pad (15), makes fan-shaped spray
Head (18) can not rotate, and after installing all Fan spray heads (18), laser sleeve (3) is fixed on into sending and receiving using Ka Gai (2) and moved
Mantle cylinder (1) both ends, screw on abutment sleeve (4), and then the air flue connected is placed on three supports, uses big hex screw
(19) and backing plate (20) fixes air flue, i.e., just forms complete collection air flue (A)；Pressurized keg (D) is subsequently assembled, by relief valve
(21), pressure gauge (22) and normally closed solenoid valve (24) are connected through a screw thread at the corresponding screwed hole of liquid container bucket (23) respectively, will
Collect and inject liquid container bucket (23) at the hole that the liquid used is reserved by plug (25) place, it is then close using plug (25)
Envelope, pressurized keg (D) assembling are completed；The screw thread collected on air flue (A) is then connected to using high pressure flexible metallic conduit (C) one end to transfer
Head (13), connected according to Fan spray head (18) quantity being actually needed with position selection pipeline, the other end is connected to current divider
(B) normally closed solenoid valve on current divider (B) liquid inlet and pressurized keg (D), is being connected using a high pressure flexible metallic conduit (C)
(24) outlet, gas-pressurized steel cylinder is finally connected to pressurized keg (D) upper end spiral shell by pressure-reducing valve and high pressure flexible metallic conduit (C)
At line mouth, i.e., composition is completely used for online grain diameter measurement and the synchronous collection system of micro-nano particle in multiphase flow.
3. being used for online grain diameter measurement and the synchronous collection system of micro-nano particle in multiphase flow as claimed in claim 1, it is special
Sign is：Sending and receiving motivation sleeve (1) front end is first connected to the solid propellant rocket being fixed on thrust platform, then will be collected
The liquid used is then sealed out of the hole that plug (25) is reserved injection pressurized keg (D) using plug (25), then by gases at high pressure
It is passed through in pressurized keg (D), after the interior pressure stability of bucket (D) to be pressurised, normally closed solenoid valve (24) is powered, and valve is opened, and liquid passes through
After high pressure flexible metallic conduit (C) reaches current divider (D), it is divided into multichannel, then sprays at a high speed from Fan spray head (18), make in high pressure
With lower formation multiple tracks sector water curtain；Open laser particle analyzer, the on-line testing for micro-nano particle in high temperature and high speed multiphase flow；With
Rear engine is lighted a fire, and HTHP multiphase flow caused by propellant combustion sprays and bombarded in Fan spray head (18) at a high speed from spout
On the multiple tracks sector water curtain of ejection, the temperature of micro-nano particle and speed reduce rapidly in HTHP multiphase flow, avoid high temperature height
Micro-nano particle grain is bombarded in equipment wall surface in fast multiphase flow, avoids high-temperature particle from being contacted with ambient atmos and secondary response occurs,
In the presence of several fan-shaped water curtain, HTHP micro-nano particle is decelerated cooling caused by most of propellant combustions；Micro-nano
Grain is flowed ultimately into collecting tank (12) with liquid water curtain by collecting the through hole of sleeve (10) lower end, reaches collection high temperature and high speed
Micro-nano particle purpose in multiphase flow；In addition, engine plume flue gas and particulate matter after water curtain absorbs greatly reduce, reduce and bang
The flue gas and particle of equipment surface are hit, increases equipment life；Treat that engine closes power of electromagnetic valve after hours, will collect
Liquid mixture in groove is collected, and opens relief valve (21), is discharged pressurized keg (D) interior gas pressure release, is beaten after release
Plug (25) is opened, is then powered to normally closed solenoid valve (24), reclaims remaining liq, air flue (A) is collected in then cleaning, prevents equipment
Corrosion；Finally, by liquid evaporation, micro-nano particle in multiphase flow will be obtained in bucket, grain diameter is tested using Electronic Speculum, that is, realized more
The online grain diameter measurement and synchronous collection of micro-nano particle in mutually flowing, improve particle diameter testing efficiency.
4. online grain diameter measurement and the synchronous collection system for being used for micro-nano particle in multiphase flow as described in claim 1,2 or 3,
It is characterized in that：Laser particle analyzer position and Fan spray head (18) are spaced larger and have step barrier, realize micro-nano in multiphase flow
The online grain diameter measurement and synchronous collection of particle are non-interference.
5. online grain diameter measurement and the synchronous collection system for being used for micro-nano particle in multiphase flow as described in claim 1,2 or 3,
It is characterized in that：Change class of liquids and moulding pressure according to actual conditions, so as to change the muzzle velocity of liquid, to adapt to not
With the particle of state.
6. online grain diameter measurement and the synchronous collection system for being used for micro-nano particle in multiphase flow as described in claim 1,2 or 3,
It is characterized in that：Diverse location and quantity N1 Fan spray head are selected according to actual conditions, changes water curtain quantity and position, is realized
Optimal collecting effect.
7. online grain diameter measurement and the synchronous collection system for being used for micro-nano particle in multiphase flow as described in claim 1,2 or 3,
It is characterized in that：In order to avoid particle is deposited in gap, cambered surface is selected in collecting tank (12) bottom surface.
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| CN107462501B (en) | 2019-07-26 |
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