CN207805829U - Ultralow pressure vortex atomizing nozzle and duplex mixing syringe - Google Patents
Ultralow pressure vortex atomizing nozzle and duplex mixing syringe Download PDFInfo
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- CN207805829U CN207805829U CN201721401518.1U CN201721401518U CN207805829U CN 207805829 U CN207805829 U CN 207805829U CN 201721401518 U CN201721401518 U CN 201721401518U CN 207805829 U CN207805829 U CN 207805829U
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Abstract
The utility model is related to ultralow pressure atomizer fields, relate more specifically to ultralow pressure vortex atomizing nozzle and duplex mixing syringe.The nozzle is formed with the runner of perforation nozzle in the axial direction and the runner includes：Pressure chamber forms at least two eddy flow accelerated passages so that the liquid flowed at least two eddy flow accelerated passages can form eddy flow and accelerate in pressure chamber；Laminar flow road comprising convergence portion and arcuate limb channel, convergence portion are connected to by arcuate limb channel with pressure chamber, and the liquid from pressure chamber can be further accelerated via arcuate limb channel flows into convergence portion to form vortex；The liquid of axle center chamber, laminar flow road enters axle center chamber by convergence portion；And spray chamber, diameter are less than the diameter of axle center chamber, and for ejecting liquid with mist state.In this way, the ultralow pressure vortex atomizing nozzle of the utility model can be by the flow velocity and pressure of liquid in two aspect raising runners of the abrupt change of cross-section and eddy flow acceleration to obtain good atomizing effect.
Description
Technical field
The utility model is related to ultralow pressure atomizer fields, relate more specifically to ultralow pressure vortex atomizing nozzle and use
The duplex mixing syringe of the ultralow pressure vortex atomizing nozzle.
Background technology
Atomization technique is very wide in industrial circle application, and communications and transportation, agricultural production, gardens sprinkling irrigation etc. have atomization technique to answer
Example, but wherein most is all mesohigh atomization, and low pressure atomizing, especially ultralow pressure atomization (are less than
Research 0.1MPa) is very few.Common low pressure atomizing is most of by spring pressurization, the injection that liquid can only be allowed interrupted, and nothing
Method realizes continuous injection.The case where for being applied to after plurality of liquid mixing in mist state injection, use spring loaded side
Demand of the formula it is impossible to meet user to continuously spraying, it is therefore desirable to which the mutation by cross section of fluid channel product carrys out larger fluid pressure
To realize that liquid is atomized.But existing realize the means of atomization in ultralow pressure atomising art by changing cross section of fluid channel product
The effect is unsatisfactory.
Specifically, it such as in the case where coating the mixing liquid of two kinds of liquid using duplex mixing syringe, will mix
The purpose of liquid atomization is to allow mixing liquid uniformly to mix while can be formed uniformly thin layer be covered in target location.The prior art
Duplex mixing syringe is all mechanical atomization, main still to use axial center type pressure atomization, atomizing effect not ideal enough.And it is common
Pressure common atomizer be only applicable to pressure be more than 0.3MPa low pressure atomizing, for less than 0.1MPa ultralow pressure be atomized
And it is not suitable for.Further, if ultralow pressure duplex mixing syringe uses merely axial center type pressure atomization, to flowpath pressure
It is required that high, the smaller the better to spray orifice requirement, the two factors can limit the syringe capacity of product, because under equal conditions, it is small
The flowpath pressure that the syringe of capacity can generate can bigger.
Therefore, the design of the ultralow pressure atomizer of the prior art only considers the mode to become smaller from cross section of fluid channel to pressurize,
Only consider that the mode to become smaller from cross section of fluid channel cannot farthest play the effect of ultralow pressure swirl nozzle to pressurize, and also limit
Syringe cannot use big specification, once the section of syringe is excessive, can not eject liquid with mist state because of insufficient pressure；
In addition, if spray orifice is too small, liquid is susceptible to blocking there are certain impurity or viscosity are too high in the position of nozzle
The problem of.
Utility model content
It is made that the utility model in order to solve above-mentioned problem of the prior art.The purpose of this utility model is to provide
A kind of novel ultralow pressure vortex atomizing nozzle, can greatly improve the flow velocity of liquid in runner, even if input liquid pressure
Good atomizing effect can be also obtained in the state of the ultralow pressure less than 0.1MPa.Another purpose of the utility model
It is to provide a kind of duplex mixing syringe using above-mentioned novel ultralow pressure vortex atomizing nozzle.
In order to achieve the above purpose, the utility model adopts the following technical scheme.
The utility model provides a kind of following ultralow pressure vortex atomizing nozzle, the nozzle integrally have tubular and
With axially, radially and circumferentially, the nozzle is formed with the runner that the nozzle is penetrated through in the axial direction, the runner packet
It includes：Pressure chamber forms at least two eddy flow accelerated passages helically extended so that described in flowing into extremely in the pressure chamber
Liquid in few two eddy flow accelerated passages can form eddy flow and accelerate；Laminar flow road, the laminar flow road include convergence portion and
It is at least three arcuate limb channels of dispersion shape extension from the convergence portion towards radial outside, the diameter in the convergence portion is small
In the diameter of the pressure chamber, the convergence portion passes through at least three arcuate limb channels and is connected to the pressure chamber, comes
It can be further accelerated from the liquid of the pressure chamber via at least three arcuate limb channels and flow into the remittance
Poly- portion is vortexed with being formed；Axle center chamber, the diameter of the axle center chamber are less than the diameter of the pressure chamber, the axle center chamber and the remittance
Poly- portion is directly connected to；And spray chamber, the diameter of the spray chamber are less than the diameter of the axle center chamber, the spray chamber with it is described
Axle center chamber is directly connected in the axial direction, and the liquid from the axle center chamber can flow into the spray chamber and from described
Spray chamber ejects.
Preferably, at least three arcuate limb channels are located at the same position in the axial direction and in the axial direction
It is upper Chong Die with the convergence portion.
It is highly preferred that the area of section in each arcuate limb channel is from each arcuate limb channel and the pressure
One end of chamber connection is gradually reduced towards the other end being connected to the convergence portion.
It is highly preferred that each described one end is uniformly distributed in the circumferential direction, each other end is uniform in the circumferential direction
Distribution.
It is highly preferred that in the at one end, the lateral wall and the formation pressure chamber in each arcuate limb channel are formed
Side wall it is tangent；And/or at the other end, lateral wall and the formation convergence portion in each arcuate limb channel are formed
Side wall it is tangent.
Preferably, the nozzle includes nozzle body and spiral speedup part, and the pressure is formed in the nozzle body
Chamber, the laminar flow road, the axle center chamber and the spray chamber, the spiral speedup part are accommodated in the pressure chamber and include：Spiral shell
Speedup part main body is revolved, the spiral speedup part main body has along the axially extending cylindrical shape, the spiral speedup part
The axial end face of main body is pressed against the axial end face of the pressure chamber；And multiple external thread parts, the multiple external thread part from
The peripheral surface of the spiral speedup part main body is protruded towards radial outside, and the multiple external thread part is parallel to each other and helically
Extend to form the eddy flow accelerated passage between the multiple external thread part and the side wall of the formation pressure chamber.
It is highly preferred that the axial starting point and/or terminal of each external thread part are located at the axis of the spiral speedup part main body
To two end faces between.
It is highly preferred that forming recess portion and the spiral speedup in the end face of the pressure chamber of the nozzle body
The diameter of part main body is more than the diameter in the convergence portion so that is pressed against the end face by the spiral speedup part main body.
It is highly preferred that the nozzle body further includes the installation cavity for being engaged with other components, the installation cavity and institute
It states pressure chamber connection and positioned at the position of the axial side of the pressure chamber, the diameter of the installation cavity is more than the pressure chamber
Diameter.
It is highly preferred that the axial end face in the formation installation cavity of the nozzle body is formed with for installing sealing ring
Annular recess.
Preferably, the runner further includes spray orifice portion, and the spray orifice portion is connected to the spray chamber, and the spray orifice portion is cut
Face area gradually increases since the spray chamber.
Preferably, the diameter of the spray chamber and ranging from the 1 of the ratio of the diameter of the axle center chamber：4 to 2：3, and/or
The diameter in the convergence portion in the laminar flow road is equal with the diameter of axle center chamber, and the laminar flow road in the axial direction
The ratio of size and the size in the axial direction of the axle center chamber is 1：1.
The utility model additionally provides a kind of following duplex mixing syringe, more than the duplex mixing syringe includes
Ultralow pressure vortex atomizing nozzle described in any one of technical solution technical solution.
By using above-mentioned technical proposal, the utility model provides a kind of novel ultralow pressure vortex atomizing nozzle and adopts
With the duplex mixing syringe of the novel ultralow pressure vortex atomizing nozzle, the runner of the novel ultralow pressure vortex atomizing nozzle
Formation cross-section accumulates different pressure chambers, axle center chamber, laminar flow road and spray chamber and is led to by eddy flow accelerated passage and arcuate limb
Road carries out multiple cyclonic acceleration to the liquid in runner, can be flowed in this way by being improved in terms of the abrupt change of cross-section and eddy flow acceleration two
The flow velocity and pressure of liquid in road so that can be obtained the initial pressure of liquid is in the state of ultralow pressure good
Atomizing effect, to also improve the syringe capacity of duplex mixing syringe.
Description of the drawings
Fig. 1 a are the schematic cross-sectional views of the ultralow pressure vortex atomizing nozzle of an embodiment according to the present utility model；Fig. 1 b
It is the partial perspective stereogram of the ultralow pressure vortex atomizing nozzle in Fig. 1 a.
Fig. 2 a are the stereograms of the spiral speedup part of the ultralow pressure vortex atomizing nozzle in Fig. 1 a；Fig. 2 b are super in Fig. 1 a
The front view of the spiral speedup part of low-voltage rotational-flow atomizing nozzle.
Fig. 3 a, Fig. 3 b and Fig. 3 c are pressure chamber and the eddy flow acceleration for the ultralow pressure vortex atomizing nozzle in definition graph 1a
The definition graph in channel.
Fig. 4 a, Fig. 4 b, Fig. 4 c and Fig. 4 d are spray chamber for the ultralow pressure vortex atomizing nozzle in definition graph 1a, axle center
The definition graph of chamber and laminar flow road.
Fig. 5 is the schematic diagram for the duplex mixing syringe for including ultralow pressure vortex atomizing nozzle in Fig. 1 a.
Reference sign
13 injection tube of ultralow pressure vortex atomizing nozzle (nozzle) 2 three-way pipe, 4 fixed frame 5 pushes connecting rod
11 nozzle body, 111 large-diameter portion, 112 small diameter portion, 12 spiral speedup part, 121 spiral speedup part main body 122A
One the second external thread parts of external thread part 122B
S runner S1 pressure chambers S11 the first eddy flow accelerated passage S12 the second eddy flow accelerated passage S2 laminar flows road S21 converges
The poly- portion S22 arcuate limbs channel axle center S3 chamber S4 spray chamber S5 spray orifices portion M installation cavity M1 annular groove M2 internal thread parts
A axial directions R is radial
Specific implementation mode
The technical solution of the utility model is described in detail below with reference to Figure of description.It should be noted that according to this
The ultralow pressure vortex atomizing nozzle generally tubular of utility model, unless otherwise specified, axial direction illustrated in the utility model,
It refer to radially and circumferentially the axial direction, radially and circumferentially of ultralow pressure vortex atomizing nozzle；Axial side refers to the right side in Fig. 1 a, axis
Refer to the left side in Fig. 1 a to the other side.
The outline structure of the ultralow pressure vortex atomizing nozzle of the utility model will be illustrated to constitute first below.
(outline structure of ultralow pressure vortex atomizing nozzle 1)
As illustrated in figs. 1A and ib, the nozzle 1 of an embodiment according to the present utility model includes nozzle body 11 and spiral shell
Revolve speedup part 12.The runner S and peace for penetrating through entire nozzle body 11 on axial A and communicating with each other are formed in nozzle body 11
Behave affectedly M, and wherein runner S is flowed through for the liquid of flow nozzle 1, and installation cavity M is for other component (examples with duplex mixing syringe
Three-way pipe 2 described as follows) installation.Above-mentioned runner S includes communicating with each other from the axial other side of axial side direction on axial A
Pressure chamber S1, laminar flow road S2, axle center chamber S3, spray chamber S4 and spray orifice portion S5, and spiral speedup part 12 is accommodated in pressure chamber S1
And form eddy flow accelerated passage S11, S12 with the side wall for forming pressure chamber S1.In this way, the liquid of the runner S of flow nozzle 1 will be with
The sequential flow of pressure chamber S1 (eddy flow accelerated passage S11, S12) → laminar flow road S2 → axle center chamber S3 → spray chamber S4 → spray orifice portion S5
It is dynamic, and finally sprayed with mist state in spray orifice portion S5.
In the present embodiment, nozzle body 11 includes large-diameter portion 111 and small diameter portion 112, large-diameter portion 111 on axial A
Outer diameter be more than small diameter portion 112 outer diameter.Above-mentioned installation cavity M is formed in large-diameter portion 111, and above-mentioned runner S is formed in small diameter portion
112.In this way, in the case of the maximum gauge of each component part of the diameter of installation cavity M more than runner S so that be formed in small
The side wall that runner S is formed in diameter portion 112 will not be blocked up.
In the present embodiment, as shown in Figure 2 a and 2 b, spiral speedup part 12 is double threaded screw and includes that spiral increases
Fast part main body 121 and two external thread parts (the first external thread part 122A and the second external thread part 122B).
Spiral speedup part main body 121 has the cylindrical shape that axially A extends.In the present embodiment, which increases
The diameter and the spiral speedup part main body 121 of following convergence portion S21s of the diameter of fast part main body 121 more than laminar flow road S2
The end face of the axial other side is pressed against the end face of the axial other side of pressure chamber S1 so that the convergence portion S21 of laminar flow road S2 and pressure
It is only connected to by arcuate limb channel S22 between power chamber S1；The end face of the axial side of the spiral speedup part main body 121 is from pressure
Chamber S1 is slightly projected into installation cavity M.In the present embodiment, a diameter of 2mm of spiral speedup part main body 121 and in axial A
On length be 4.6mm.
First external thread part 122A and the second external thread part 122B is from the peripheral surface of spiral speedup part main body 121 towards diameter
It protrudes outward, each external thread part 122A, 122B of spiral speedup part 12 are fitted close with the side wall for forming pressure chamber S1；Into one
With walking, the first external thread part 122A and the second external thread part 122B is parallel to each other and helically extends.In this way, in two outer spiral shells
Two eddy flow accelerated passages (the first eddy flow accelerated passage S11 and second is formd between line portion and the side wall for forming pressure chamber S1
Eddy flow accelerated passage S12).In the present embodiment, the lead angle of the first external thread part 122A and the second external thread part 122B
It it is 60 degree, screw pitch is 5mm and thread width is 1.4mm.
In addition, the beginning and end on axial A of both first external thread part 122A and the second external thread part 122B is equal
Between two on the axial A end face of spiral speedup part main body 121.That is, the first external thread part 122A and
The end face that the terminal surface of the axial side of both two external thread part 122B is located at the axial side than spiral speedup part main body 121 is leaned on
The terminal surface position of the axial other side of both the position of the axial other side, the first external thread part 122A and the second external thread part 122B
The position of axial side is leaned in the end face of the axial other side than spiral speedup part main body 121.First external thread part 122A and
The terminal surface of the axial side of both two external thread part 122B is parallel with the end face of axial side of spiral speedup part main body 121,
The terminal surface of the axial other side of both first external thread part 122A and the second external thread part 122B and spiral speedup part main body 121
The axial other side end face it is parallel.In the present embodiment, both the first external thread part 122A and the second external thread part 122B
The distance between the end face of axial side of terminal surface and spiral speedup part main body 121 of axial side and the first external thread part
The axial other side of the terminal surface and spiral speedup part main body 121 of the axial other side of both 122A and the second external thread part 122B
The distance between end face it is equal, be 0.3mm.
The outline structure of composition ultralow pressure vortex atomizing nozzle 1 is explained above, will be described below ultralow pressure swirling flow atomizing
The concrete structure of the runner S and installation cavity M of nozzle 1.
(concrete structure of runner S and installation cavity M)
After the runner S of ultralow pressure vortex atomizing nozzle 1 according to the present utility model receives liquid, liquid can be in runner
Repeatedly accelerated in S, pressurizeed and is finally sprayed with mist state.As described above, runner S penetrates through the small diameter portion of nozzle 1 on axial A
112, runner S include pressure chamber S1, laminar flow road S2, axle center chamber S3, spray chamber S4 and spray orifice portion S5, and liquid is in runner S with pressure
The sequential flowing of power chamber S1 → laminar flow road S2 → axle center chamber S3 → spray chamber S4 → spray orifice portion S5.
In the present embodiment, as shown in Figure 3a, pressure chamber S1 generally cylindrical shapes, the axial side of pressure chamber S1
End is directly connected to the end of the axial other side of installation cavity M.As shown in Figure 3b, the spiral by being accommodated in pressure chamber S1
The the first eddy flow accelerated passage parallel to each other helically extended is formed between speedup part 12 and the side wall for forming pressure chamber S1
S11 and the second eddy flow accelerated passage S12, so that the liquid in feed pressure chamber S1 is via the first eddy flow accelerated passage S11
Eddy flow is formed with the second eddy flow accelerated passage S12 and is accelerated.
With the inertia acceleration principle of eddy flow accelerated passage S11, S12, liquid by eddy flow accelerated passage S11, S12 it
Afterwards, flow velocity is accelerated, pressure increases, and liquid has carried out acceleration pressurization before the arcuate limb channel S22 for reaching laminar flow road S2,
Even if the initial pressure of liquid can be allowed if insufficient liquid via obtained after eddy flow accelerated passage S11, S12 enough speed and
Pressure, to ensure to reach uniform atomizing effect when injection.
In the present embodiment, as shown in Figure 4 b, laminar flow road S2 includes convergence portion S21 and from convergence portion S21 towards diameter
It is in three arcuate limb channel S22 that dispersion shape extends outward.The generally cylindrical shape of convergence portion 21 and convergence portion S21's is straight
Diameter is less than the diameter of pressure chamber S1, and convergence portion S21 is connected to by three arcuate limb channel S22 with pressure chamber S1, comes from pressure
The liquid of chamber S1 is only further accelerated via three arcuate limb channel S22 and flows into convergence portion S21, and at convergence portion S21
It is formed and is vortexed.
Three arcuate limb channel S22 are located at same position in the axial direction and be overlapped on axial A with convergence portion S21.
Each arcuate limb channel S22 arcuate shapes having the same and towards the same side in circumferential direction it is raised fit together.Respectively
The area of section of arcuate limb channel S22 from one end for being connected to pressure chamber S1 of each arcuate limb channel S22 towards and convergence
The other end of portion S21 connections is gradually reduced.Each one end is uniformly distributed in the circumferential, and each other end is uniformly distributed in the circumferential.Three
Arcuate limb channel S22 from convergence portion S21 towards the radial outside of nozzle 1 in dispersion shape to be distributed.
Preferably, the lateral wall and the side wall for forming convergence portion S21 and formation pressure chamber of each arcuate limb channel S22 are formed
The side wall of S1 is tangent, so that the liquid for forming eddy flow in pressure chamber S1 can be successfully via arcuate limb channel S22
It flows into convergence portion S21.Preferably, size ranges of the entire laminar flow road S2 on axial A is 0.2mm to 1.0mm, convergence portion
Diameter range is 0.3mm to 2.0mm.
In the present embodiment, for the ease of manufacture, recess portion is formed in the end face for forming pressure chamber S1 of nozzle body 11,
It surrounds to form arcuate limb channel S22 by the spiral speedup part main body 121 and the recess portion of screw thread speedup part 12.
As illustrated in fig. 4 c, axle center chamber S3 generally cylindrical shapes, the diameter of the diameter of axle center chamber S3 less than pressure chamber S1 and
The diameter of convergence portion S21 equal to laminar flow road S2, axle center chamber S3 are directly connected to convergence portion S21 on axial A.From pressure chamber
The liquid of S1 is via inflow axle center chamber S3 after three arcuate limb channel S22 and convergence portion S21.Preferably, axle center chamber S3
Diameter range is 0.3mm to 2.0mm, and the size range on axial A is 0.3mm to 2.0mm.
In the present embodiment, as shown in figure 4d, the diameter of spray chamber S4 generally cylindrical shapes, spray chamber S4 is less than axis
The diameter of chambers of the heart S3, spray chamber S4 are directly connected to axle center chamber S3 on axial A, and the liquid from axle center chamber S3 can be from injection
Chamber S4 is ejected.Preferably, a diameter of 0.2mm to 0.5mm of spray chamber S4.
In this way, being formd such as Fig. 4 a institutes by laminar flow road S2, axle center chamber S3 and spray chamber S4 with above-mentioned concrete structure
The shape shown so that the liquid from pressure chamber S1 is formed while vortex accelerates by laminar flow road S2 and passes through laminar flow road S2, axis
The acceleration of chambers of the heart S3 and the mutation of spray chamber S4 Formation cross-sections, finally so that liquid obtains enough pressure, to ensure to spray
When reach uniform atomizing effect.
In the present embodiment, spray orifice portion S5 generally cone shapes, the end of the axial side of spray orifice portion S5 and injection
Chamber S4 is connected on axial A, and spray orifice portion S5 extends to the end of the axial other side of nozzle 1 from spray chamber S4 towards the axial other side
The end face in face, the axial other side of the area of section of spray orifice portion S5 from spray chamber S4 towards nozzle 1 gradually increases.In this way, from spray
Penetrating the liquid that chamber S4 is ejected can successfully be spread along the outside of spray orifice portion S5 towards nozzle 1 with mist state.
Further, in the present embodiment, as described above, installation cavity M is connected to pressure chamber S1 and is located at pressure chamber S1
The position by axial side, the diameter of installation cavity M is more than the diameter of pressure chamber S1.
At the part by the end of the axial other side of installation cavity M, it is formed on the side wall for forming installation cavity M interior
Threaded portion M2, internal thread part M2 are used to be installed with other components of such as following three-way pipes 2, pass through other component energy
It is enough that spiral speedup part 12 is compressed on axial A so that spiral speedup part 12 closely compresses the axial other side of pressure chamber S1
End face.In addition, the annular recess M1 for installing sealing ring is formed in the end face of the axial other side of installation cavity M, in this reality
It applies in mode, cross sections of the annular recess M1 on radial R is triangle.Annular recess M1 prevents for installing sealing ring
Leakage in the case of only installing other components in installation cavity M.
By using above-mentioned structure so that liquid via pressure chamber S1 and laminar flow road S2 liquid flow into axle center chamber S3 it
After can reach preset pressure.The sectional area of the runner S that the nozzle 1 of the utility model flows through liquid is stablized in very little
Numerical value ensures the atomization parameter for stabilizing nozzle 1 under conditions of use, is sprayed so as to which liquid can be stablized with mist state
Go out, reduces because the difference of component assembly technique is brought on the influence of the performance of accurate atomizer 1.
The concrete structure of ultralow pressure vortex atomizing nozzle 1 according to the present utility model is illustrated in detail above, below will
Illustrate the structure of the duplex mixing syringe using the ultralow pressure vortex atomizing nozzle 1.
(structure of duplex mixing syringe)
As described in Figure 5, duplex mixing syringe according to the present utility model includes two injection tubes, 3, promotion connecting rods
5, three-way pipe 2, fixed frame 4 and the ultralow pressure vortex atomizing nozzle 1 with concrete structure as above.
Two injection tubes 3 are arranged side-by-side and are fixed by fixed frame 4, and one end of two injection tubes 3 passes through three
Siphunculus 2 is connected to ultralow pressure vortex atomizing nozzle 1, the different liquids in two injection tubes 3 by push connecting rod 5 promotion via
Two independent channels are flowed into ultralow pressure vortex atomizing nozzle 1 and are finally ejected with mist state in three-way pipe 2.
Although being set forth in above to the technical solution of the utility model, it should be noted that：
1. the quantity of arcuate limb channel S22 is not limited to the specific quantity in above-mentioned specific implementation mode, but can root
According to needing to select quantity appropriate, it is therefore preferable to 3 to 7 arcuate limb channel S22.
2. the quantity of the external thread part of spiral speedup part 12 is not limited to the specific quantity in above-mentioned specific implementation mode, but
Quantity appropriate can be selected as needed, it is therefore preferable to 2 to 6 external thread parts.
3. ultralow pressure vortex atomizing nozzle according to the present utility model also has following advantageous effect.
The utility model provides a kind of novel ultralow pressure vortex atomizing nozzle 1, can be advantageously applied to liquid
The case where initial pressure is less than 0.1Mpa simultaneously has good atomizing effect.The utility model passes through the pressure in atomizer 1
Power chamber S1 addition spiral speedups part 12, improves the flow velocity of runner S liquid, meanwhile, increase laminar flow road S2 and axle center chamber S3 to increase
The Fluid pressure of big fluid pressure, spray chamber S4 has been initial pressure decades of times, can be adapted to add by the diameter of spray chamber S4
Greatly, the risk blocked during use is reduced, and there is good atomizing effect, while reducing difficulty of processing.
The ultralow pressure vortex atomizing nozzle 1 of the utility model is folded by being atomized simultaneously using centrifugal spraying and axial center type
Add principle, flowed in eddy flow accelerated passage S11, S12 using liquid and be formed by eddy flow acceleration, liquid is accelerated to flow into laminar flow
Road S2 further speeds up liquid by the arcuate limb channel S22 of laminar flow road S2, finally in nozzle shape at venturi
Moisture film, moisture film tear form drop in air, and drop presents misty, and regular initially forms cone from spray orifice portion S5
Distribution is suitable for the ultra low pressure range less than 0.1MPa, has good atomizing effect, and assembles simple.
The duplex mixer of the utility model is due to the use of spiral speedup part 12 later so that mixed liquor accelerates to lead in eddy flow
The distance flowed through in road S11, S12 is longer, increases mixed liquor in the incorporation time and distance in this section, two kinds of liquids is allowed to have
Time enough and space are sufficiently mixed.Since eddy flow accelerated passage S11, S12 increase the flow velocity and pressure of liquid, spray simultaneously
The diameter of the spray chamber S4 of mouth 1 is smaller, sprays the diameter smaller of the drop of appearance, and atomizing effect becomes apparent from, liquid coating
Thickness it is thinner.Such effect more preferably controls the thickness of coating convenient for user, saves more mixed liquors.
The scope of protection of the utility model is not limited to above-mentioned specific implementation mode, as long as but meeting the power of the utility model
The combination for the technical characteristic that profit requires just is fallen within the scope of protection of the utility model.
Claims (13)
1. a kind of ultralow pressure vortex atomizing nozzle, which is characterized in that the nozzle is integrally with tubular and with axial, radial
And circumferential direction, the nozzle are formed with the runner that the nozzle is penetrated through in the axial direction, the runner includes：
Pressure chamber forms at least two eddy flow accelerated passages helically extended so that described in flowing into extremely in the pressure chamber
Liquid in few two eddy flow accelerated passages can form eddy flow and accelerate；
Laminar flow road, the laminar flow road include convergence portion and extend at least in dispersion shape from the convergence portion towards radial outside
Three arcuate limb channels, the diameter in the convergence portion are less than the diameter of the pressure chamber, the convergence portion by it is described at least
Three arcuate limb channels are connected to the pressure chamber, and the liquid from the pressure chamber can be via described at least three
Arcuate limb channel, which is further accelerated, flows into the convergence portion to form vortex；
Axle center chamber, the diameter of the axle center chamber are less than the diameter of the pressure chamber, and the axle center chamber directly connects with the convergence portion
It is logical；And
Spray chamber, the diameter of the spray chamber are less than the diameter of the axle center chamber, and the spray chamber is with the axle center chamber described
It is directly connected in axial direction, the liquid from the axle center chamber can flow into the spray chamber and be sprayed from the spray chamber
Go out.
2. ultralow pressure vortex atomizing nozzle according to claim 1, which is characterized in that at least three arcuate limbs are logical
Road is located at same position in the axial direction and Chong Die with the convergence portion in the axial direction.
3. ultralow pressure vortex atomizing nozzle according to claim 2, which is characterized in that each arcuate limb channel is cut
The one end being connected to the pressure chamber in face area from each arcuate limb channel is another towards being connected to the convergence portion
End is gradually reduced.
4. ultralow pressure vortex atomizing nozzle according to claim 3, which is characterized in that each described one end is in the circumferential direction
It is uniformly distributed, each other end is uniformly distributed in the circumferential direction.
5. ultralow pressure vortex atomizing nozzle according to claim 3, which is characterized in that
In the at one end, lateral wall and the side wall for forming the pressure chamber for forming each arcuate limb channel are tangent；With/
Or
At the other end, lateral wall and the side wall for forming the convergence portion for forming each arcuate limb channel are tangent.
6. ultralow pressure vortex atomizing nozzle according to any one of claim 1 to 5, which is characterized in that the nozzle packet
Include nozzle body and spiral speedup part, formed in the nozzle body pressure chamber, the laminar flow road, the axle center chamber and
The spray chamber, the spiral speedup part are accommodated in the pressure chamber and include：
Spiral speedup part main body, the spiral speedup part main body have along the axially extending cylindrical shape, the spiral
The axial end face of speedup part main body is pressed against the axial end face of the pressure chamber；And
The peripheral surface of multiple external thread parts, the multiple external thread part from the spiral speedup part main body is convex towards radial outside
Go out, the multiple external thread part is parallel to each other and helically extends in the multiple external thread part and the formation pressure chamber
Side wall between form the eddy flow accelerated passage.
7. ultralow pressure vortex atomizing nozzle according to claim 6, which is characterized in that the axial direction of each external thread part rises
Point and/or terminal are located between two axial end faces of the spiral speedup part main body.
8. ultralow pressure vortex atomizing nozzle according to claim 6, which is characterized in that in the pressure of the nozzle body
The end face formation recess portion of power chamber and the diameter of the spiral speedup part main body are more than the diameter in the convergence portion so that logical
It crosses the spiral speedup part main body and is pressed against the end face.
9. ultralow pressure vortex atomizing nozzle according to claim 6, which is characterized in that the nozzle body further includes installation
Chamber, the installation cavity are connected to the pressure chamber and positioned at the positions of the axial side of the pressure chamber, the installation cavity it is straight
Diameter is more than the diameter of the pressure chamber.
10. ultralow pressure vortex atomizing nozzle according to claim 9, which is characterized in that in the formation of the nozzle body
The axial end face of the installation cavity is formed with the annular recess for installing sealing ring.
11. ultralow pressure vortex atomizing nozzle according to any one of claim 1 to 5, which is characterized in that the runner is also
Including spray orifice portion, the spray orifice portion is connected to the spray chamber, the area of section in the spray orifice portion since the spray chamber by
It is cumulative big.
12. ultralow pressure vortex atomizing nozzle according to any one of claim 1 to 5, which is characterized in that
The diameter of the spray chamber and ranging from the 1 of the ratio of the diameter of the axle center chamber：4 to 2：3, and/or
The diameter in the convergence portion in the laminar flow road is equal with the diameter of axle center chamber, and the laminar flow road in the axial direction
On the ratio of the size in the axial direction of size and the axle center chamber be 1：1.
13. a kind of duplex mixing syringe, which is characterized in that the duplex mixing syringe includes appointing in claim 1 to 12
Ultralow pressure vortex atomizing nozzle described in one.
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| CN201721401518.1U CN207805829U (en) | 2017-10-27 | 2017-10-27 | Ultralow pressure vortex atomizing nozzle and duplex mixing syringe |
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| CN201721401518.1U CN207805829U (en) | 2017-10-27 | 2017-10-27 | Ultralow pressure vortex atomizing nozzle and duplex mixing syringe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107744888A (en) * | 2017-10-27 | 2018-03-02 | 广州迈普再生医学科技有限公司 | Ultralow pressure vortex atomizing nozzle and duplex mixing syringe |
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2017
- 2017-10-27 CN CN201721401518.1U patent/CN207805829U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107744888A (en) * | 2017-10-27 | 2018-03-02 | 广州迈普再生医学科技有限公司 | Ultralow pressure vortex atomizing nozzle and duplex mixing syringe |
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