CN107328688A - A kind of spray flux density determines device - Google Patents
A kind of spray flux density determines device Download PDFInfo
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- CN107328688A CN107328688A CN201610849518.1A CN201610849518A CN107328688A CN 107328688 A CN107328688 A CN 107328688A CN 201610849518 A CN201610849518 A CN 201610849518A CN 107328688 A CN107328688 A CN 107328688A
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- fluid
- atomizer
- mist
- flux density
- square plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0408—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing two or more liquids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/20—Sprayers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Nozzles (AREA)
Abstract
The device that a kind of spray flux density is determined, enclosed mass fixed plate, movable square plate, column, drive device and controller, fixed plate is provided with two guide rails and two root posts, crossbeam is provided between two root posts, atomizer to be measured is installed in the middle part of crossbeam, the atomizer moves back and forth above and below being realized with crossbeam in two root posts, and the fixation locking device for fixed cross beam horizontal level is additionally provided with column；Movable square plate is located on two guide rails, in movable square plate multiple trapezoidal side cups for being used to receive spraying are being uniformly provided with along closed slide direction and vertical guide rail direction, suction mist material is provided with trapezoidal side's cup, movable square plate can move back and forth under the collective effect of controller, drive device and transmission device on two guide rails, realize the measure of atomizer spray flux density.The spray flux density of the present invention determines device and can be good at spraying atomizer profile, the jet length of mist, and the index such as uniform spatial distribution of mist is measured.
Description
The application is to be directed to the applying date on May 12nd, 2016, and Application No. 201610311620.6 is entitled
The divisional application that " fluid atomizing nozzle and density measuring device and drying device with the nozzle " is proposed.
Technical field
The invention belongs to machinery manufacturing technology field, and in particular to a kind of spray flux density for atomizer is measured
Device.
Background technology
The purposes of atomizer is quite varied, has many application fields in terms of industry, agricultural, national defence, toward contact
Belong to key equipment.Current atomizing nozzle structure, can substantially be divided into four classes by atomizing type：1. single hole high pressure direct injection is atomized；
2. centrifugal atomizing nozzle, under one kind is high pressure, allow fluid 1 pass through isometrical helical duct produce after radial rotary again with it is axially straight-through
The mixed aerosol of fluid 2 come over, or the aperture directly allowed in tangential direction of the fluid 1 along mixing chamber side wall enter fluid mixing chamber
Carry out rotation mixed aerosol；3. under high pressure, gas and liquid set multiple gas vents to be distributed in liquid by put-through channel
Body outlet around and Way out with liquid outlet direction into identical acute angle, realize mixed aerosol；4. revolved by means of high speed
The rotating disk or runner or revolving cup turned realizes atomization.Wherein, 1. structure is the simplest, but narrow application range, the pressure loss are big,
The particle size distribution of " mist " is most wide；2. the scope of application is wide, atomizing effect is good, but the former pressure loss is bigger, Hou Zheyin
The radius of mixing chamber is the decades of times of spout radius and makes after fluid exiting nozzles constrain, and still maintains higher rotating speed, and this
Factor can cause the density of the mist axis of a cylinder heart to reduce.3. compared with 2., although the pressure loss has reduced, but the limited gas of number
Outlet must make the particle size distribution of " mist " broaden；4. compared with 2., the scope of application is wider, and required pressure is small, " mist "
Particle size distribution mainly determine that rotating speed is higher by the rotating speed of rotating disk, the particle of " mist " is smaller and particle size distribution range
It is narrower, it is high to the required precision of equipment when having the disadvantage additionally to increase power-equipment, particularly high rotating speed, also there is sealing
Problem.
In summary, for low viscosity fluid, though existing rotarytype injector has some superiority, it also has one to lack
Point, that is, spray liquids rotate, although be conducive to mixing with other low density flows, be but unfavorable for being uniformly distributed for " mist ".
And this point will necessarily reduce its motive force for rocket, jet plane.
Secondly, the technological means not determined accurately to the spray flux density of nozzle also in the prior art is made
The evaluation of paired nozzle performance lacks comprehensive scientific basis.
The content of the invention
It is an object of the invention to provide a kind of efficient, lower resistance, fluid ultrahigh speed rotation, without add rotatable parts
Static nozzle, its required pressure low limit is relatively small, " mist " particle is not only small but also particle size distribution range is narrower and mist
A kind of controllable atomizer of Density Distribution.There is provided a kind of more reliable fog density distribution measurement device and method simultaneously.
The present invention is in order to solve the above technical problems, the technical scheme used is：The device that a kind of spray flux density is determined, bag
Block fixed plate, movable square plate, column, drive device and controller, the bottom even of the fixed plate are provided with multiple leg spiral shells
Bolt, is provided with two guide rails, the middle part in fixed plate upper surface, positioned at guide rail along its length on the upper surface of fixed plate
The left and right sides be symmetrically arranged with two root posts, described column and be provided with graduation mark, one is provided between two root posts
An atomizer to be measured is installed with the middle part of root crossbeam, crossbeam, the atomizer can be as crossbeam be in two root posts
Move back and forth above and below upper realization, the fixation locking device for fixed cross beam horizontal level is additionally provided with described column；
Described movable square plate is arranged on two guide rails, equal along closed slide direction and vertical guide rail direction in movable square plate
Even be provided with multiple trapezoidal sides cups for being used to receive spraying, trapezoidal side cup is provided with suction mist material, described controller with
Drive device is installed in one end of fixed plate, and transmission device, described work are also associated between drive device and movable square plate
Dynamic square plate can move back and forth under the collective effect of controller, drive device and transmission device on two guide rails, realize mist
Change the measure of nozzle spray density.
Spirit level is additionally provided with described fixed plate.
Described mist material of inhaling is inorganic salts nonhygroscopic under normal temperature and pressure.
The position that trapezoidal side's cup is not provided with inside movable square plate is also equipped with one layer of suction mist substrate.
The material for inhaling mist substrate is polyacrylic acid glycerol condensation polymer, asbestos cloth steep solids paraffin or calcium carbonate powder
Any one in steep solids paraffin.
Beneficial effects of the present invention：
The spray flux density of the present invention determines profile, the jet length that device can be good at spraying atomizer mist, and
The indexs such as the uniform spatial distribution of mist are measured.The measurement result degree of accuracy is high, this uniformity for pesticide application, fuel
Combustibility, and chemical products spray drying effect etc., all with actual application value.
Brief description of the drawings
Fig. 1 is the structural representation of the fast atomizer of single fluid height rotation in the present invention；
Fig. 2 is Fig. 1 vertical section figure；
Fig. 3 is Fig. 2 partial enlargement structural representation；
Fig. 4 is the structural representation of the fast atomizer of two-fluid height rotation in the present invention；
Fig. 5 is Fig. 4 vertical section figure；
Fig. 6 is Fig. 5 partial enlargement structural representation；
Fig. 7 be in Fig. 1 and Fig. 4 along AA ' to shaft section view；
Fig. 8 is the shaft section view along BB ' in Fig. 4；
Fig. 9 is the vertical section structural representation of the fast atomizer of multi-fluid height rotation in the present invention；
Figure 10 is Fig. 9 partial enlargement structural representation；
Figure 11 is the structural representation of spray flux density measure device in the present invention；
Figure 12 is the structural representation of spray-drying installation in the present invention；
Marked in figure：1st, single hole shower nozzle, 2, cylindrical shell I, 3, round table-like housing, 4, cylindrical shell II, 5, coniform shell
Body, 6, internal thread screw thread, 7, outer silk screw thread, 8, dispersive nozzle, 9, silk mouthful connecting seat, 10, connecting tube, 11, high-pressure fluid line, 12,
Cavity seals wire cover, and 13, spout cap, 14, fluid input cavity, 15, outlet gap, 16, fixed plate, 17, movable square plate, 18, vertical
Post, 19, drive device, 20, controller, 21, leg bolt, 22, guide rail, 23, graduation mark, 24, crossbeam, 25, atomization to be determined
Nozzle, 26, trapezoidal side cup, 27, inhale mist material, 28, drying tower, 29, top shrouding, 30, fluid delivery tube to be dried, 31, compression
Hot air delivery pipe, 32, separate sleeve, 33, inner chamber, 34, exocoel, 35, refluxing opening, 36, vortex chamber, 37, expansion chamber, 38, control
Butterfly valve processed, 39, discharging machine, 40, hopper, 41, fluid hybrid chamber, 42, external silk mouthful, 43, needle valve, 44, loose joint, 45, roller,
46th, inhale mist substrate, 47, laser, 48, laser receiver I, 49, square cup fixed seat, 50, nozzle movement cutting ferrule, 51, low-density
Fluid pressure pipe, 52, dense fluids pressure pipe, 53, nozzle move the fixing bolt of cutting ferrule, 54, laser receiver II, 55,
Laser receiver III, 56, sampling position, 57, transition position, 58, geared worm, 59, spirit level, 60, subparticle, flow of water vapor
Direction, 61, visor, 62, motor, 63, illuminating lamp, 64, product particle sedimentation direction, 65, subparticle and air stream outlet,
66th, tank interface is centrifuged.
Embodiment
The atomizer of the present invention includes three kinds：
1st, single fluid is atomized
Bottom diameter and cylindrical cavity I on one are connected in the bottom of a cylindrical cavity I surrounded by cylindrical shell I straight
Footpath identical truncated cone-shaped cavity, the bottom diameter of truncated cone-shaped cavity is only the one of some points of bottom diameter thereon, and truncated cone-shaped is empty
The bottom of chamber connects a diameter and truncated cone-shaped cavity bottom diameter identical roundlet cylindrical shell II again.Cylindrical shell II
Side wall is carved with outer silk screw thread, and the coniform housing that an aperture is left in its underpart with an one end open, one end is connected.
The side wall of cylindrical housings I silk provided with several common single hole shower nozzles mouthful connecting seat, the inner chamber of silk mouthful connecting seat can be accommodated
The head of common single hole shower nozzle, and the spray nozzle part of common single hole shower nozzle is communicated with the inner chamber of cylindrical cavity, common single hole spray
The afterbody of head is connected with high-pressure fluid line.The upper inner of cylindrical shell I is carved with internal thread screw thread, and outer silk screw thread is carved with by one
Silk head cavity body sealing wire cover fitted seal.
A spout cap is also equipped with the coniform housing bottom of nozzle body, the external screw thread connection of the spout cap is coniform
The internal thread of housing bottom（The external screw thread of coniform housing bottom as fixed nozzle second option）, and make coniform shell
The end of internal wall connects into a Laval nozzle structure with spout cap inwall.So just constitute the single fluid mist of the present invention
Change nozzle.
Single fluid height revolves fast atomizer and belongs to outer mixed mode nozzle, and fluid is revolved after fast atomizer ejection from single fluid height,
Just the constraint of spout cap is lost, its internal pressure is less than around it when rotating the centrifugal force produced and fluid high-speed motion
The static pressure of air, fluid column must be rotating diverging and spray, and air, which must be also mixed into, wherein forms spraying.But such a nozzle sprays
Mist, after the constraint that nozzle is departed from due to the larger fluid of the density of rotation, certainly will dissipate and move to the surrounding of its direction of advance,
And although the immersion of the air of nozzle surrounding static is conducive to the formation of mist, the restriction ability of the fluid droplet larger to density
It is than relatively limited.Thus cause that the diameter of mist is big, jet length is near, the concentration of the neighbouring mist in axis it is low.Therefore, this nozzle
Great advantage be atomization needed for pressure low limit it is relatively low, be only applicable to the not high occasion of the uniformity requirements to mist.
2nd, atomization is mixed in two-fluid
With two fast atomizers of single fluid height rotation, the fast atomizer of single fluid height rotation on top is removed spout cap, and extend
The cone of its coniform housing is high, and the silk head cavity body that the fast atomizer of bottom single fluid height rotation removes its top is sealed wire cover, and
It is connected with the outer silk of the cylindrical shell II of the fast atomizer of top single fluid height rotation, allows bottom single fluid height to revolve fast atomizer
Outer wall and the lower pyramid mouth internal diameter fast atomizer of rotation higher than top single fluid outer wall and lower pyramid mouth external diameter it is larger, finally make
Coniform shell end, the coniform shell ends of the fast atomizer of bottom single fluid height rotation of the fast atomizer of portion's single fluid height rotation
One blending space is formed at portion and the spout cap top of the fast atomizer of bottom single fluid height rotation.So just constitute the present invention's
The fast atomizer of two-fluid height rotation.
Double fluid atomization nozzle belongs to internal mixing type atomizer, when the direction of rotation of two fluids is opposite and their angular momentum
During sum etc. zero, not only spraying distance is remote, and fog density is also uniform.Because, the dense fluids single liquid in portion from it
After the fast atomizer of height rotation sprays, although lose the constraint of mouth under its coniform housing, but immediately encountered direction of rotation phase
" system rotation " effect of the relatively small fluid of anti-density.This effect not only can significantly promote the mixing of two fluids, and
And their rotary speed can be reduced rapidly.So, mixed fluid, actually high pressure, highdensity " mist ", in pressure
It will be sprayed under power effect along nozzle-axis direction from nozzle.The high pressure of ejection, high density mist, outside its internal high pressure and nozzle
Under the synergy of still air, although the diameter of mist post can also expand with the increase of jet length, but because of the particle of mist
Rotary speed is almost lost, thus is lost the power that this is partially radially moved caused by rotation.And this point is to increase
Rocket, the motive force of jet plane, all it is very favorable to spraying dust elimination etc..In other occasions, for example, it is spray-dried
Fluid product is, it is necessary to larger solid product particle, it is possible to allow two fluid rotating Vortexes, although mixed effect is weaker, mist
Drip particle size distribution range wide, but be far from it and be difficult to obtain larger solid particulate product.
3rd, atomization is mixed in multi-fluid
According to the preparation method of the fast atomizer of two-fluid of the present invention height rotation, two fast atomizers of single fluids height rotation up and down it
Between, then the fast atomizer of several single fluids height rotation is socketed, and the fast atomizer of single fluid height rotation is sequentially adjusted in from top to bottom
The cone of coniform housing high and lower pyramid mouth external diameter and internal diameter, make their bottom be extended downwardly successively in vertical direction, with
Spout cap one blending space of formation of last single fluid height rotation speed atomizer, and allow bottom single fluid height rotation speed to be atomized
The outer wall of the fast atomizer of the inwall of nozzle rotation higher than the single fluid on top is larger, forms respective fluid input cavity, so
Just the fast atomizer of multi-fluid height rotation of the present invention is constituted.
The fast atomizer of multi-fluid height rotation, the fast atomizer of particularly three fluids height rotation, there is purposes widely.It is many
The spray drying of industrial products, we can first allow fluid to be dried, air（To product inertia）, hot-air, from it is inner outwards according to
It is secondary to pass through the fast atomizer of multi-fluid height rotation.As for the direction of rotation of each fluid, should as the case may be depending on, fixed principle is
Even density, jet length to mist is remote, then allows the angular momentum sum of each fluid to be tried one's best close to zero.Otherwise, each fluid should be made
Direction of rotation it is identical, but size should have a different differences, and the difference of hardly possible mixing is larger, and miscible difference is smaller.Example
Such as：When using three fluid atomizing nozzle spray dried products, fluid to be dried, air can be first allowed（To product inertia）, heat
Air, outwards three fluid atomizing nozzles are passed sequentially through from inner.Wherein, the direction of rotation of first and second fluid is on the contrary, as the 3rd stream
The direction of rotation of body, should as the case may be depending on.Fixed principle is：It is tiny to product particle, then allow of first fluid
The rotary speed of grain is as far as possible close to zero.Not only rate of drying is fast for this drying mode, save power resource, and product particle
Small, particle size distribution range is narrow；It is big to product particle, then three fluid rotation directions should be allowed identical, make to form " umbrella " mist post.
The connecting tube of the fast atomizer of fluid height rotation of the present invention can be stereoplasm tube or soft pipe, specific choosing
Selecting to depend on the circumstances, and the connection between the multiple progress of loose joints 44 pipelines can be set on stereoplasm tube.
The general principle of the present invention is as follows.
During using two-fluid or multi-fluid height rotation speed atomizer, the stream that density progressively reduces outwards is passed through successively from inner
Body.During present invention work, the different fluid of density under pressure, sprays through their own common single hole shower nozzle, forced
Fluid is rotated in the cylindrical shell I of the respective fast atomizer of single fluid height rotation of the invention with certain rotating speed, and to each
From the fast atomizer of single fluid of the present invention height rotation coniform housing the movement of Xia Kou directions.When whole system reaches stable put down
After weighing apparatus, i.e., when conveying power and resistance is equal, it is believed that bonding force suffered by fluid particle is zero, now, is kept according to angular momentum
There is following relation in constant rule
L=mR1 2ω1= mr2 2ω2=definite value is 1.
Or L=mv1R1=mv2r2=definite value is 2.
Wherein, L is the angular momentum of fluid particle, and m is the quality of fluid particle, R1For the shaft section radius of cylindrical shell I, r2
For the radius at coniform housing outlets, ω1The rotating speed, the ω that are fluid in cylindrical shell I2It is fluid in coniform housing
The rotating speed in exit, v1The linear velocity for being fluid in cylindrical shell I, v2For linear speed of the fluid at coniform housing outlets
Degree.
ω can be obtained by 1. formula2/ω1=（R1/r2）2 ③
V can be obtained by 2. formula2/v1=R1/r2 ④
Due to R1It is r2Decades of times（Even more high）, therefore, ω is understood by 3. formula2It is ω1Tens of squares times, by 4.
Knowable to formula, v2It is v1Decades of times, this shows, the present invention significant multiplication is respectively provided with to fluid rotating speed and linear velocity.
For the fast atomizer of two-fluid height rotation, after first fluid is contacted with second fluid, if their direction of rotation
On the contrary, according to the viewpoint of relative motion, improving almost one times equivalent to the rotary speed of first fluid, this will be highly beneficial
In their uniform mixing.And relative to the air outside nozzle of the present invention, the mixed rotary speed of two fluids almost tends to again
Zero, and that this is conducive to that mist post sprays is farther, thus eliminate be atomized mist caused by fluid rotary jet length is near, mist is close
Degree is uneven to wait side effect.
During fluid is by the present invention, resistance essentially from common single hole shower nozzle outlet diameter and the present invention
Nozzle diameter, because the present invention can be arranged as required to multiple common single hole shower nozzles, therefore the summation of this some resistance is obvious
It is the part of single plain nozzle.That is 2. class atomizer is much smaller than for resistance of the invention, than the 3.
The mist droplet particle size narrowly distributing of class nozzle it is many, compared with the 4th class nozzle, only each fluid rotary direction need to be allowed identical, without
Separately add power, leakage is also not present certainly（Or gas leakage）The problems such as.In a word, the required atomizing pressure lower bound of the present invention is relatively low, and
Power need not separately be matched somebody with somebody.
In fact, cyclone is exactly the similar but distinguishing model of the present invention.When high-altitude rotary air stream
When radius of turn is even thousands of kilometers of hundreds of kilometer, its rotating speed, flow velocity around its center is all very little, the low temperature ring in high-altitude
Border makes the increase of its density, sunk, while being made its radius of turn progressively reduce by the pressure-air extruding around it again, by angular momentum
Conservation principle, rotating speed, flow velocity of the rotary air around its center is continuously increased, and ultimately forms cyclone.From unlike cyclone,
The present invention has lasting pushed at high pressure power, thus can stablize, continuously work, and the energy of cyclone is by its internal and its week
The drag effect of air is enclosed, continuous consumed energy is needed, but cannot be supplemented, therefore is once exhausted, cyclone just comes to an end
Only.
The present invention with unlike cyclone, the constraint to fluid of the invention is rigid, therefore fluid is in descending mistake
With the reduction of radius of turn in journey, not only rotary speed can increase, and vertical flow velocity can also increase.When the stream that density is larger
Body is moved to behind the outlet of its coniform housing, and constraint is lost suddenly, therefore fluid is while moving downward, what rotation was produced
Centrifugal force moves the tangential direction for making its bottom inwall along coniform housing, and now, on the outside of it, with opposite（Or phase
Together）The less fluid of density that direction rotates, still by rigid constraint, the intrusion of the larger fluid of density, will force density compared with
Small fluid is to axe movement, if their direction of rotation is opposite, it is obvious that this is very beneficial for the mixing of fluid, atomization.
Below in conjunction with the accompanying drawings, the implementation of the present invention is further illustrated by taking two-fluid as an example.
As illustrated, open needle valve 43, respectively by the connecting tube of the fast atomizer of two single fluids height rotation up and down and
Common single hole shower nozzle conveying dense fluids and low density flow into the fast atomizer of two-fluid height rotation, due to two-fluid Gao Xuan
The outlet of two cavitys of fast atomizer is smaller, and high and low density fluid will be accumulated in respective chamber, and be full of, revolve quickly
Turn, be pressurized, finally achieve stable equilibrium.
Dense fluids are moved downward, when reaching its outlet, according to conservation of angular momentum principle, and the rotating speed of fluid will increase
Arrive its original（R1/r2）2Times.Fluid hybrid chamber 41 is subsequently entered, the larger fluid of density loses constraint suddenly, and it is downward
While motion, the centrifugal force that rotation is produced moves the tangential direction for making its inwall exported along dense fluids.It is same with this
When, the less fluid of density on the outside of it, still by rigid constraint, the intrusion of the larger fluid of density will be forced equally
The low density flow of rotary speed is significantly increased to axe movement.If high and low density fluid direction of rotation on the contrary, if they stream
In body hybrid chamber 41 while rapid mixing, the rotating speed of oneself will be made to reduce rapidly, and form high pressure, high density mist.High pressure, height
Density mist under pressure, sprays from the dispersive nozzle of bottom of the present invention.Because high and low density fluid has lost substantially
Rotary speed, high pressure, high density mist emission direction must for the present invention axis direction.High pressure, high density mist pass through this hair
The constraint of atomizer of the present invention will be thoroughly lost after the dispersive nozzle of bright bottom, continue behind pressure, internal high pressure with
It is rapid forwards on one side to transport and under the collective effect of the peripheral still air of dispersive nozzle 8, high pressure, high density mist expand one side
It is dynamic, the more uniform mist of density ratio is formed in mist axis of a cylinder section.
Although different operating modes is different to the performance requirement of mist, to the profile of mist, jet length, particle size and point
Cloth, and mist the index such as uniform spatial distribution, be always the important indicator for judging atomizer performance.Comparatively, mist
Profile, the measure of jet length is easier；Particle size and distribution, although the measurement result difference of various assay methods compared with
Greatly, in addition it is also necessary to continue exploration, but existing many methods after all；But to the uniform spatial distribution of mist, it is still not a set of so far
Accurately and reliably assay method.And the uniform spatial distribution of mist, uniformity, the flammability of fuel either to pesticide application
Can, and chemical products spray drying effect etc., all have a major impact.
For the performance of accurate evaluation atomizer of the present invention, spy devises spray flux density and determines device, wherein controller
Key/switch function such as following table（The electrical equipment principle of set of time and controller belongs to routine techniques, does not repeat）.
Its operating method is as follows：
1st, the spray flux density for getting out spraying apparatus and the present invention determines device, while observation spirit level 59, while adjustment bottom
Six leg bolts 21, method be first allow person of modern times placed in the middle and people living in faraway places Ju Bian leg bolt vacantly, then adjust remaining three
Individual leg bolt, makes after the level of fixed plate 16, then allows and hanging leg bolt holding force but do not influence the level of fixed plate 16.
2nd, the atomizer to be determined 25 of the present invention is fixed to the scale a11 of column 14, trapezoidal side's cup 26 is removed, in work
Paper Z11 is measured on the dynamic middle berth of square plate 17, the power supply of controller 20 is opened, selected after blank shelves, by start button, when movable square plate 17
After reset, with the wetting size in the vertical direction of guide rail 22 on measurement Z11, the mist column diameter D11 at as scale a11, this
The atomizer to be determined 25 of invention is fixed to the scale a12 of column 14, repeats said process, can measure a12, D12 ... ...
3rd, the atomizer to be determined 25 of the present invention is rotated by 90 °, repeats the 2nd step, can measure a21, D21, a22,
D22 ... ....
4th, the diameter of a certain position according to the mist post measured on graduation mark 23, it is determined that atomizer to be determined of the invention
25 some particular location on graduation mark 23（It is designated as K1）, and the nozzle movement cutting ferrule set on fixed nozzle movement cutting ferrule 50
Fixing bolt 53；According to the mist post measured in the diameter of the position and the length of side setting activity square plate suitable for reading of trapezoidal side cup 26
The number of trapezoidal side cup 26 being loaded is needed in 17 in square cup fixed seat 49, single file must be made（Or row）Trapezoidal side cup 26 side
Long summation is more than diameter of the mist post in the position.
5th, to each trapezoidal side cup 26 and its lid number consecutively, weigh, and be designated as Hi0（I is column number, similarly hereinafter）And Sj0
（J is line number, similarly hereinafter）, then they are resetted after uncapping.
6th, the power switch of controller 20 is opened, blank/measure switch is placed in " blank " position, sprayed again, to be sprayed steady
After fixed, by following start button, drive device 18, i.e. motor are rotated forward, and movable square plate 17 is positive to left movement, reach transition position
After 57, motor reversion makes it be returned to original position, stops spraying, with cover to the progress of trapezoidal side cup 26 to weigh, and is designated as Hi1And Sj1。
7th, after trapezoidal side cup 26 is resetted, blank/measure switch is placed in " measure " position and sets minute t, sprays again
After mist, stabilization to be sprayed, start button is pressed, motor is rotated forward, movable square plate 17 is positive to left movement, reach transition position 57
Afterwards, motor reversion is returned to sampling position, and motor stalling, timing starts.
8th, after setting time is reached, motor start-up simultaneously continues reversion, is also turned on laser receiver I 48, works as activity
Square plate 17 is returned to behind original position, stops spraying, closing control device power supply, and the lid of each trapezoidal side's cup 26 is covered, to trapezoidal
Square cup 26 carries out weighing with cover, is designated as Hi2And Sj2。
9th, △ H are calculatedi=（Hi2- 2（Hi1-Hi0））/ t and △ Si=（Si2- 2（Si1-Si0））/ t, then △ HiWith △ SjWith regard to energy
Enough reflection mist posts are in K1 sections（Perpendicular to mist axis of a cylinder to）On Density Distribution situation.
10th, the atomizer to be determined 25 of the present invention is separately changed a position on graduation mark 84（It is designated as K2）, repetition 4~
9 steps, just can obtain one group of data again, so determine KiIndividual position, just can draw out surveyed mist post mutually perpendicular two
The density profile of individual radial direction.
If it should be pointed out that trapezoidal side's cup 26 will be covered with movable square plate 17, mist post can then being drawn out in aforementioned manners and is existed
Three dimensions Density Distribution；The length of side of trapezoidal side's cup 26 is smaller, and the precision of measurement result is also higher.
The mist material 27 of inhaling set in spray flux density measure device in trapezoidal side's cup 26 can be nonhygroscopic under normal temperature and pressure
The mixture of powders of inorganic salts, such as sodium chloride and barium sulfate.The material of suction mist substrate 46 of setting can be in movable square plate 17
Diaper（Polyacrylic acid glycerol condensation polymer）；Atomizer spray be oiliness mist when, it can be stone to inhale the material of mist substrate 46
Cotton dipping solid paraffin (heating fusing), the material for inhaling mist material 27 can be calcium carbonate powder steep solids paraffin.
With above-mentioned spray flux density assay method, the fast atomizer of single fluid height rotation and two-fluid height rotation speed to the present invention
Distribution situation of the spray flux density of atomizer in horizontal, the vertical both direction vertical with mist axis of a cylinder is determined, as a result such as
Table 1,2,3.
At single fluid nozzle outlet 3.5cm of the table 1 axially away from the present invention（Mist column section diameter 160cm）'s
Fog density measure of spread result
Remarks：1. small-sized carwash water supplying pump, pressure 0.8MPa, flow 32L/min
2. plain nozzle 4, outlet diameter 4mm（Similarly hereinafter）
3. the diameter 200mm of single fluid nozzle of the present invention, the diameter 8mm of cylindrical shell II.
" the mist post " of the single fluid nozzle I of the present invention be in umbrella distribution it can be seen from the data of table 1, " umbrella post " nearby
Fog density is substantially relatively low, and the drift angle of especially " mist post " is very big, only at nozzle 3.5cmc, is just determined.If only
Consider 2~No. 36 trapezoidal side's cups, △ Hi、△SjAverage relative error be respectively 73.0% and 61.2%, but compare with " umbrella post " away from
From the fog density in identical place, their error is simultaneously little.
At two-fluid spray nozzle outlet 112cm of the table 2 axially away from the present invention（Mist column section diameter 80cm）'s
Fog density measure of spread result
Remarks：
1. small-sized carwash water supplying pump, pressure 0.8MPa, flow 32L/min, air compressor machine supply, pressure 0.8MPa, flow 300L/
min；
2. common 8, single hole shower nozzle, outlet diameter, high and low density fluid is respectively 4mm, 8mm；
3. double fluid atomization nozzle of the invention, the diameter of the two chambers of high/low density fluid, i.e. R1 and r2
Respectively 440 mm and 200mm, the fast atomizer of top single fluid height rotation and the fast atomizer of bottom single fluid height rotation
The diameter of cylindrical shell II is respectively 8 mm and 14.6mm.
At two-fluid spray nozzle outlet 168cm of the table 3 axially away from the present invention（Mist column section diameter 120cm）
Fog density measure of spread result
Remarks：
1. small-sized carwash water supplying pump, pressure 0.8MPa, flow 32L/min, air compressor machine supply, pressure 0.8MPa, flow 300L/
min；
2. common 8, single hole shower nozzle, outlet diameter, high and low density fluid is respectively 4mm, 8mm；
3. double fluid atomization nozzle of the invention, the diameter of the two chambers of high/low density fluid, i.e. R1 and r2
Respectively 440 mm and 200mm, the fast atomizer of top single fluid height rotation and the fast atomizer of bottom single fluid height rotation
The diameter of cylindrical shell II is respectively 8 mm and 14.6mm.
" mist post " flare distribution of the two-fluid spray nozzle of the present invention it can be seen from the data of table 2, if being only with regard to numbering
From the point of view of 4~18 trapezoidal side cup 26, although the mist axis of a cylinder heart（No. 11 trapezoidal side's cups）Fog density it is somewhat larger, all in all " mist "
Distribution or substantially homogeneous, △ Hi、△SjRelative error be respectively between 2.8% and 2.4%.This is fully proved, of the invention
Two-fluid spray nozzle use high and low density fluid counter-rotating, and joined by adjusting the related of their first, cylindrical shell
Number, makes the angular momentum of two fluids equal in magnitude, in opposite direction, the diverging of mist post can be controlled to a certain extent.
As can be seen from Table 3, with the increase away from nozzle distance of the present invention, mist column diameter becomes big, and density reduces, but
Numbering is that the fog density distribution on mist column section is still than more uniform, △ H within 4~26 trapezoidal side's cups 26i、△SjIt is relative
Error is respectively between 2.9% and 3.2%.With reference to the measurement result of table 2,3, it can calculate, " the mist of two-fluid spray nozzle of the invention
Post " drift angle only has 39 °.
With reference to embodiment, further illustrate the spray-drying installation of the present invention for foam concrete foamer
Implementation during spray drying.
Embodiment 1
The basic parameter of the present embodiment is as follows.
What it is for experiment is that annual production is 1300 tons of spray drying tower, its hydraulic pump flow：12 kg/min；Blower fan stream
Amount：130 m3/min；Air compressor machine flow：0.3 m3/min；
The intracavity diameter that separation sleeve is separated in drying tower is 390mm, a diameter of 800mm of exocoel；Separate sleeve height be
2290mm, the height of drying tower（I.e. top shrouding to vortex chamber bottom height）For 3600mm.
Common single hole shower nozzle on the side wall of drying tower middle and lower part vortex chamber（4 uniform）Bore：40 mm；
Common single hole shower nozzle in the fast atomizer of two-fluid height rotation of the present invention with the supporting connection of fluid delivery tube to be dried is straight
Footpath（4 uniform）：1 mm；
Common single hole shower nozzle in the fast atomizer of two-fluid height rotation of the present invention with the compression supporting connection of hot air delivery pipe is straight
Footpath（4 uniform）：4.5 mm；
Hot-air enters 200 DEG C of tower temperature degree, 100 DEG C of tower exit temperature, and cold air, cold foaming agent solution are preheated by heat exchanger.
Liquid foam concrete foamer, although can directly use, but packing cost is high, and transport is inconvenient, particularly
In the last few years, the need for the anti-terrorism, country and loglstics enterprise to the movement requirement of fluid product, check more strict, especially
It is increasingly difficult to foreign countries' transport.Therefore, necessary be made solid product liquid foam concrete foamer.
Spray drying is the common method that fluid product is made to solid product.But existing spray drying tower, one is single
The production capacity of position tower volume is small；Two be two fluids only in vertical direction reverse movement, without gas, solid phase separating capacity；Three
It is that must just stop production clear tower at regular intervals the drawbacks of mostly there is " viscous tower ".Using atomizer of the present invention, and adjust tower
Structure, the production capacity of unit tower volume can be significantly increased；Make two fluids not only reverse in vertical direction simultaneously（On a small quantity
In the same direction）Motion, it is often more important that allow gas, solid phase to produce rotary motion in the horizontal direction, thus separated with certain gas, solid phase
Ability, while the drawbacks of also overcoming " viscous tower ".Outlet 31 additionally, due to atomizer of the present invention is relatively large in diameter, and is also saved
Power resource.
Its concrete principle and operating process are as follows.
As shown in figure 12, foam concrete foamer concentrated solution passes through fluid delivery tube to be dried in the presence of hydraulic pump
30, the top single fluid of the fast atomizer of two-fluid height rotation set at the top of drying tower is entered via pressure foaming agent solution entrance
In the fast atomizer of height rotation, 200 DEG C of hot-air is entered by compressing hot air delivery pipe 31 via the interface of pressure hot-air I
In the fast atomizer of bottom single fluid height rotation of the fast atomizer of two-fluid height rotation, in the fluid of the fast atomizer of two-fluid height rotation
Hybrid chamber 41, although two fluid rotating Vortexes, but the flow velocity of hot-air is fast, and the micella in foam concrete foamer is torn,
Water vapour is produced plus moisture therein is heated, high pressure, high density aerosol will be formed.Because two fluid rotary directions are identical,
" umbrella " mist post will be formed after this high pressure, high density aerosol are ejected." umbrella " mist post is separating the inner chamber that sleeve 32 separates
Under 33 side wall constraint, wall collision, bounce-back that solid particle can be with inner chamber 33（Effect with cleaning wall, but this effect
Foam concrete foamer is had little significance because wall adsorb one layer of foam concrete foamer in surfactant it
Afterwards, wall will not just be glued）And constantly grow up during exercise；Vapor is minimum due to density, will be located near the center line of inner chamber 33, and occupy
Its periphery is the larger air layer of density, so as to realize preliminary point of solid constituent in foam concrete foamer and moisture
From." umbrella " mist post is reached behind the outlet of inner chamber 33, volume further expand and with the common list that is set on the side wall of vortex chamber 36
The pressure hot air for the rotating Vortex that hole shower nozzle is provided, be further improved rotating speed and the relatively partial pressure of reduction vapor
The moisture in solid particle is promoted further to evaporate and be gathered into larger particles.Bulky grain solid product is settled along product particle
Direction shown in direction 64, which is sunk to, turns into solid blowing agent in the expansion chamber 37 of drying tower bottom；And the minimum solid content of particle and
Vapor, air, will enter exocoel 34 along direction shown in figure 60 under pressure.In exocoel 34, particle is minimum
Solid content is reduced due to flow velocity, the residence time is longer and the reduction of partial pressure of vapor, can progressively become big and along straight down
Direction is settled.The atomic little particle that can not be settled, when it is risen to up to refluxing opening 35, due to the fast atomizer of two-fluid height rotation
The spray effect that spraying is produced, the pressure of exocoel 34 is more than the pressure of inner chamber 33, will there is the minimum solid content of a certain amount of particle
Inner chamber 33 is again introduced into through refluxing opening 35 with vapor, the condensation centre of solid content is thus introduced, formed（Crystal seed）, so that favorably
Become big in product particle and make granular size more interesting uniform.Due to the hollow gas and water steam of this spray drying tower, minute solid particles
Rotate at a high speed, and their outlet is positioned close to the vicinity of drying tower center line, thus minute solid particles can be thrown to it is dry
Near dry inner wall of tower, it is difficult to escape, and the chance for bottom of towe of further being grown up, be deposited to.
Corresponding auxiliary equipment is additionally provided with the spray-drying installation of the present invention, such as：Visor, illuminating lamp etc..In use,
Illuminating lamp 63 is opened, is observed by visor 61, when Product Interface reaches the center of visor 61, control butterfly valve 38 is opened, product falls
In the hopper 40 for entering discharging machine 39.When Product Interface arrives again at 61 middle and upper part of visor, the motor in discharging machine 39 is opened
Discharging, when Product Interface drops to 61 middle and lower part of visor, closes motor, stops discharging, so discharge repeatedly.
The heated fiber tube of the interface of pressure hot-air I of the present invention is connected with air compressor machine, and what is set on the side wall of vortex chamber 36 is general
The heated fiber tube of pressure hot-air of logical single hole shower nozzle input is connected with blower fan（Do not shown in figure）.Certainly, with subparticle
With the external interface tube of air stream outlet 65（Centrifuge tank interface 66）The cyclone separator lower part outlet of connection can also be obtained
Very little fraction solids foam concrete foamer.
Solid foam concrete foamer product obtained by the present embodiment, soluble in water, total extension rate is 1:450, use
When pre-dilution multiple can be calculated as follows according to the extension rate of foaming machine used：The dilution of the foaming machine of pre-dilution multiple=450/
Multiple.
The core technology of the present invention is to make full use of conservation of angular momentum principle, not only allows fluid along atomizer side wall
Tangential direction enters, and emphatically above and below enlarged nozzle inner chamber diameter ratio, while by making fluid rotary in opposite direction
Method, and two fluid plain nozzle outlet diameters of adjustment（Or quantity）, Fluid pressure, the parameter such as flow, make the angle of two fluids
Momentum is equal in magnitude, in opposite direction, so not only improves the mixing of two kinds of fluids of reinforcing, can overcome existing swirl atomizer only again
Allow a kind of fluid tangentially enter nozzle chamber side effect, this for improve rocket, jet plane fuel combustion
Performance and motive force and other occasions for requiring to be atomized even density, will certainly produce positive role.Certainly, needed some
In the case of " umbrella shape " mist post, it is possible to use the fast atomizer of single fluid height rotation of the present invention strengthens effect of " umbrella shape " mist post,
Using the fast atomizer of two-fluid height rotation two fluid rotating Vortexes can be made to achieve the goal.Therefore, this specification is listed implements
Example, only for illustrating the present invention, and cannot function as limiting present disclosure.
Claims (5)
1. a kind of spray flux density determines device, it is characterised in that：Enclosed mass fixed plate（16）, movable square plate（17）, column（18）, drive
Dynamic device（19）And controller（20）, the fixed plate（16）Bottom even be provided with multiple leg bolts（21）, in fixation
Plate（16）Upper surface on be provided with two guide rails along its length（22）, in fixed plate（16）The middle part of upper surface, is located at
Guide rail（22）The left and right sides be symmetrically arranged with two root posts（18）, described column（18）On be provided with graduation mark（23）,
Two root posts（18）Between be provided with a crossbeam（24）, crossbeam（24）Middle part be installed with an atomizer to be determined
（25）, the atomizer to be determined（25）Can be with crossbeam（24）In two root posts（18）Move back and forth above and below upper realization, institute
The column stated（18）On be additionally provided with for fixed cross beam（24）The fixation locking device of horizontal level；
Described movable square plate（17）It is arranged on two guide rails（22）On, movable square plate（17）It is inherent along closed slide（22）Direction
And vertical guide rail（22）Direction is evenly arranged with multiple trapezoidal side cups for being used to receive spraying（26）, trapezoidal side's cup（26）It is interior equal
It is provided with suction mist material（27）, described controller（20）And drive device（19）It is installed in fixed plate（16）One end, driving
Device（19）With movable square plate（17）Between be also associated with transmission device, described movable square plate（17）Can be in controller
（20）, drive device（19）With under the collective effect of transmission device in two guide rails（22）On move back and forth, realize to be determined
Atomizer（25）The measure of spray flux density.
2. a kind of spray flux density according to claim 1 determines device, it is characterised in that：Described fixed plate（16）It is upper to go back
It is provided with spirit level（59）.
3. a kind of spray flux density according to claim 1 determines device, it is characterised in that：Described suction mist material（27）To be normal
Nonhygroscopic inorganic salts under normal temperature and pressure.
4. a kind of spray flux density according to claim 1 determines device, it is characterised in that：In movable square plate（17）Inside is not
Trapezoidal side's cup is set（26）Position be also equipped with one layer suction mist substrate（46）.
5. a kind of spray flux density according to claim 4 determines device, it is characterised in that：The suction mist substrate（46）Material
Matter is any one in polyacrylic acid glycerol condensation polymer, asbestos cloth steep solids paraffin or calcium carbonate powder steep solids paraffin
Kind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610849518.1A CN107328688B (en) | 2016-05-12 | 2016-05-12 | Spray density measuring device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610311620.6A CN105750111B (en) | 2016-05-12 | 2016-05-12 | Spray drying device |
| CN201610849518.1A CN107328688B (en) | 2016-05-12 | 2016-05-12 | Spray density measuring device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610311620.6A Division CN105750111B (en) | 2016-05-12 | 2016-05-12 | Spray drying device |
Publications (2)
| Publication Number | Publication Date |
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| CN107328688A true CN107328688A (en) | 2017-11-07 |
| CN107328688B CN107328688B (en) | 2020-04-14 |
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|---|---|---|---|
| CN201610849518.1A Expired - Fee Related CN107328688B (en) | 2016-05-12 | 2016-05-12 | Spray density measuring device |
| CN201610311620.6A Expired - Fee Related CN105750111B (en) | 2016-05-12 | 2016-05-12 | Spray drying device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610311620.6A Expired - Fee Related CN105750111B (en) | 2016-05-12 | 2016-05-12 | Spray drying device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526874A (en) * | 2022-04-24 | 2022-05-24 | 江苏恩沃智能制造有限公司 | Nozzle delivery detection tool |
| CN116703913A (en) * | 2023-08-07 | 2023-09-05 | 山东大拇指喷雾设备有限公司 | Spraying quality detection method of sprayer |
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| CN108450446A (en) * | 2018-04-11 | 2018-08-28 | 朱子中 | Electronic antomobile sprayer |
| CN110976114A (en) * | 2019-11-20 | 2020-04-10 | 中国航天空气动力技术研究院 | Single-path multi-rotation adjustable centrifugal fluid jet device |
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| CN112264209B (en) * | 2020-09-18 | 2022-06-10 | 西北工业大学 | Spiral pipe type air atomizing nozzle |
| CN113800680B (en) * | 2021-09-30 | 2023-08-25 | 维尔利环保科技集团股份有限公司 | Reactor and method for treating landfill leachate membrane concentrate based on same |
| CN115254474B (en) * | 2022-07-26 | 2023-07-04 | 西安交通大学 | Caliber-adjustable nozzle structure and adjusting method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107328688B (en) | 2020-04-14 |
| CN105750111A (en) | 2016-07-13 |
| CN105750111B (en) | 2017-05-10 |
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