CN109013083A - A kind of integration liquid-gas two-phase flow body delicate metering spray solenoid valve - Google Patents
A kind of integration liquid-gas two-phase flow body delicate metering spray solenoid valve Download PDFInfo
- Publication number
- CN109013083A CN109013083A CN201811215877.7A CN201811215877A CN109013083A CN 109013083 A CN109013083 A CN 109013083A CN 201811215877 A CN201811215877 A CN 201811215877A CN 109013083 A CN109013083 A CN 109013083A
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- Prior art keywords
- liquid
- armature
- air deflector
- hole
- valve seat
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- 239000007921 spray Substances 0.000 title claims abstract description 34
- 230000005514 two-phase flow Effects 0.000 title claims abstract description 12
- 230000010354 integration Effects 0.000 title claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 96
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 230000004907 flux Effects 0.000 claims description 25
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 210000002421 cell wall Anatomy 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 97
- 239000000203 mixture Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 238000005507 spraying Methods 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000002459 sustained effect Effects 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a kind of integrated liquid-gas two-phase flow body delicate metering spray solenoid valves, including air deflector, the air deflector include opposite two sides, and liquid gas mixing channel is wherein offered in one side；The air deflector further includes the side adjacent with opposite two sides, and several tangential gas introducing ports are offered on the side of the air deflector, and each tangential gas introducing port is connected to the liquid gas mixing channel；Liquid entrance hole is also provided on the side of the air deflector, the liquid entrance hole is connected to the liquid gas mixing channel.Integration liquid-gas two-phase flow body delicate metering spray solenoid valve provided by the invention, gas enter liquid gas mixing channel from tangential gas introducing port and form swirling eddy, and liquid enters liquid gas mixing channel from liquid entrance hole.In liquid gas mixing channel, swirling eddy and fluid friction realize the rotation mixing of liquids and gases, make liquid gas two-phase mixtures more evenly, the atomizing effect of liquid is more preferable.
Description
Technical field
The present invention relates to spraying field more particularly to a kind of integrated liquid-gas two-phase flow body delicate metering spray solenoid valves.
Background technique
Many fields need for liquids and gases to be mixed to form by spraying, such as the fuel oil and engine of combustion system of engine
The urea liquid etc. of tail gas discharge system.Liquid gas mixed atomizing is especially suitable for high viscosity heavy oil in aviation flights such as unmanned aerial vehicles
It is applied on device.The atomization quality of liquid gas blowout mist, which is improved, all has great application potential and economic value in numerous areas, and passes
The problem that generally there are liquid gas two-phase mixtures is uneven for the electromagnetism valve nozzle of system, atomizing effect is poor.
Summary of the invention
The purpose of the present invention is to provide a kind of integrated liquid-gas two-phase flow body delicate metering spray solenoid valves, to solve liquid
The non-uniform problem of gas two-phase mixtures.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of integration liquid-gas two-phase flow body delicate metering spray solenoid valve, which is characterized in that described to lead including air deflector
Flowing device includes opposite two sides, and liquid gas mixing channel is wherein offered in one side；The air deflector further includes equal with opposite two sides
Adjacent side, several tangential gas introducing ports are offered on the side of the air deflector, and each tangential gas introducing port connects
Lead to the liquid gas mixing channel；Liquid entrance hole is also provided on the side of the air deflector, described in the liquid entrance hole connection
Liquid gas mixing channel.
Optionally, the liquid gas mixing channel is circular trough, and the hole wall in the tangential gas flow guiding hole is mixed with the liquid gas
The cell wall of slot is tangent；Each tangential gas introducing port is in sustained height；Several tangential gas introducing port annulars are uniformly distributed
In on the side of the air deflector；The liquid entrance hole is connected to the slot bottom of the liquid gas mixing channel by liquid guide flow hole.
Optionally, the spray solenoid valve further includes shell, driving assembly and ejection assemblies；The air deflector, driving group
Part and ejection assemblies are mounted on the shell；
The ejection assemblies include spool and valve seat；The valve seat is fixedly connected with the shell, and the spool includes spool
Column and valve core head；
The bottom surface of the valve seat offers spout, and the top surface of the valve seat offers the valve seat orifice for penetrating through the spout；Institute
The second end for stating spool column passes through the valve seat orifice, is fixedly connected with the valve core head；The spool column is slidably connected the valve
Bore；The valve core head and the spout constitute Laval nozzle structure.
Optionally, the inner hollow of the spool column forms spool chamber, and the spool chamber penetrates through the top surface of the spool column；
The spool column is recessed towards the part of the valve core head to the central axes of spool column, is formed between injection between the valve seat orifice
Gap；
The bottom of the spool chamber is equipped with several eddy flow slots, and each eddy flow slot is connected to the injection gap and the spool
Chamber.
Optionally, the air deflector is fixed at the inside of the shell；The inner surface of the shell and the air deflector
Outer surface between form air chamber, each tangential gas introducing port is connected to air chamber；It is opened on the outer surface of the shell
Equipped with gas access, the gas access is connected to air chamber by gas flow；
The outer surface of the shell is also provided with the liquid inlet of connection liquid entrance hole.
Optionally, the driving component includes magnetic shield, and the magnetic shield is fixedly connected with the shell；The magnetic shield
Inner hollow is formed every magnetic cavity, the top and bottom that the magnetic shield is penetrated through every magnetic cavity；
The bottom of the air deflector is protruded into described every in magnetic cavity；It is described every being also fixed with main shaft in magnetic cavity；The main shaft
Armature is equipped between the air deflector, the armature is slidably connected described every magnetic cavity；It is set between the armature and the main shaft
Flexible part；
The main shaft is fixedly connected with the valve seat；The armature is fixedly connected with the first end of the spool column, the valve
The second end of stem sequentially passes through the armature, main shaft and valve seat, is fixedly connected with the valve core head；The spool column sliding connects
Connect the main shaft and valve seat.
Optionally, flux sleeve is arranged on the magnetic shield, the flux sleeve is fixedly connected with the shell；The flux sleeve
Internal diameter be greater than the magnetic shield outer diameter；
End cap is fixed between the top of the flux sleeve and the magnetic shield；The bottom of the main shaft stretch out it is described every
Magnetic cavity；Magnetic conductive part is fixed between the bottom of the flux sleeve and the bottom of the main shaft.
Optionally, bobbin is equipped between the end cap and the magnetic conductive part；The bobbin fixing sleeve be set to it is described every
On magnetosheath；Driving coil is wound on the bobbin, the driving coil is electrically connected with electrode slice；
The first O-ring is also arranged on the magnetic shield；The second O-ring and heat insulation loop are also arranged on the valve seat；
The end cap, flux sleeve, magnetic conductive part, main shaft, armature and spool material be soft-magnetic stainless steel.
Optionally, the opposite two sides of the air deflector is respectively top and bottom；The bottom fixation of the air deflector is set
There is water conservancy diversion mounting portion, the water conservancy diversion mounting portion is arranged around the side of the air deflector；
The peripheral part of the water conservancy diversion mounting portion protrudes to form water conservancy diversion protrusion；The water conservancy diversion protrusion, water conservancy diversion mounting portion bottom surface and
The bottom surface of air deflector, which is enclosed, is set as water conservancy diversion mounting groove, and the liquid gas mixing channel penetrates through the center of the slot bottom of the water conservancy diversion mounting groove；
The bottom surface of the water conservancy diversion mounting portion and the bottom surface of the air deflector are in same plane；The air deflector is cylinder knot
Structure, the side of the air deflector are cylindrical surface；The water conservancy diversion mounting portion and water conservancy diversion protrusion are circular ring structure；The liquid guide flow
The aperture in hole is less than the diameter of the liquid gas mixing channel.
Optionally, armature slot is offered on the bottom surface of the armature, the slot bottom of the armature slot is provided with the perforation armature
Top surface armature hole；The area in the armature hole is less than the area of the armature slot, the armature slot and armature hole composition one
Shoulder hole structure；The first end of the spool column is arranged in the armature hole, is fixedly connected with the armature hole；
The spindle hole for penetrating through the top and bottom of the main shaft, the shape and rank of the spindle hole are offered on the main shaft
The shape of metal trough matches；The spool column is arranged in the spindle hole, is slidably connected with the spindle hole；
The area of the valve seat orifice is less than the area of spindle hole, and the valve seat orifice and spindle hole form a shoulder hole structure；
The shape of the valve seat orifice is matched with the shape of the spool column；
The elastic component is spring；The spring pocket is set on the spool column, and is located in the spindle hole；The bullet
The first end of spring contradicts the cascaded surface between the armature slot and armature hole, the second end of the spring contradict the spindle hole and
Cascaded surface between valve seat orifice.
Compared with prior art, the invention has the following advantages:
Integration liquid-gas two-phase flow body delicate metering spray solenoid valve provided by the invention, gas is from tangential gas introducing port
Swirling eddy is formed into liquid gas mixing channel, liquid enters liquid gas mixing channel from liquid entrance hole.In liquid gas mixing channel, rotation
Air-flow and fluid friction realize the rotation mixing of liquids and gases, make liquid gas two-phase mixtures more evenly, the atomizing effect of liquid is more
It is good.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of spray solenoid valve provided in an embodiment of the present invention.
Fig. 2 is the structural schematic diagram of air deflector provided in an embodiment of the present invention.
Fig. 3 is another structural schematic diagram of air deflector provided in an embodiment of the present invention.
Fig. 4 is the another structural schematic diagram of air deflector provided in an embodiment of the present invention.
Fig. 5 is another structural schematic diagram of spray solenoid valve provided in an embodiment of the present invention.
Fig. 6 is the structural schematic diagram and sectional view of ejection assemblies provided in an embodiment of the present invention.
It illustrates: 10, air deflector；101, liquid gas mixing channel；102, gas introducing port；103, liquid entrance hole；104,
Liquid guide flow hole；11, water conservancy diversion mounting portion；111, water conservancy diversion protrusion；112, water conservancy diversion mounting groove；20, shell；30, driving assembly；301,
First O-ring；31, magnetic shield；32, main shaft；33, armature；34, elastic component；35, flux sleeve；351, magnetic conductive part；36, end cap；
37, bobbin；38, driving coil；39, electrode slice；40, ejection assemblies；401, the second O-ring；402, heat insulation loop；41, valve seat；
411, spout；42, spool；421, spool column；4211, spool chamber；4212, gap is sprayed；4213, eddy flow slot；422, valve core head.
Specific embodiment
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
In the description of the present invention, it is to be understood that, term " on ", "lower", "top", "bottom", "inner", "outside" etc. indicate
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.It should be noted that when a component is considered as " connection " another component,
It can be directly to another component or may be simultaneously present the component being centrally located.
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
The present embodiment provides a kind of integrated liquid-gas two-phase flow body delicate metering spray solenoid valves, and liquid gas two-phase can be made abundant
Mixing, obtains being sprayed for nano sized particles.
Please refer to Fig. 1.The integration liquid-gas two-phase flow body delicate metering spray solenoid valve include air deflector 10, shell 20,
Driving assembly 30 and ejection assemblies 40.Air deflector 10, driving assembly 30 and ejection assemblies 40 are mounted on shell 20.In Fig. 1
Filled arrows be gas flow, hollow arrow be liquid flow to.
Each structure is described in detail below.
Please refer to Fig. 2 and Fig. 3.Air deflector 10 includes opposite two sides (top and bottom of air deflector 10 in Fig. 3), wherein
Liquid gas mixing channel 101 is offered on one side.Air deflector 10 further includes the side adjacent with opposite two sides, the side of air deflector 10
Several tangential gas introducing ports 102 are offered on face, each tangential gas introducing port 102 is connected to liquid gas mixing channel 101.Air deflector 10
Side on be also provided with liquid entrance hole 103, liquid entrance hole 103 is connected to liquid gas mixing channel 101.
Liquid gas mixing channel 101 is circular trough, and the cell wall of the hole wall and liquid gas mixing channel 101 of tangential gas flow guiding is tangent.Respectively
Tangential gas introducing port 102 is in sustained height.Several 102 annulars of tangential gas introducing port are distributed in the side of air deflector 10
On.The distance between bottom surface of liquid entrance hole 103 and air deflector 10 is greater than the bottom of tangential gas introducing port 102 and air deflector 10
The distance between face, liquid entrance hole 103 are connected to the slot bottom of liquid gas mixing channel 101 by liquid guide flow hole 104.
The bottom of air deflector 10 is fixed with water conservancy diversion mounting portion 11, and water conservancy diversion mounting portion 11 is set around the side of air deflector 10
It sets.The bottom surface of water conservancy diversion mounting portion 11 and the bottom surface of air deflector 10 are in same plane.The peripheral part of water conservancy diversion mounting portion 11 protrudes shape
At water conservancy diversion protrusion 111.The bottom surface of water conservancy diversion protrusion 111, the bottom surface of water conservancy diversion mounting portion 11 and air deflector 10, which is enclosed, is set as water conservancy diversion mounting groove
112, liquid gas mixing channel 101 penetrates through the center of the slot bottom of water conservancy diversion mounting groove 112.
Air deflector 10 is cylindrical structure, and the side of air deflector 10 is cylindrical surface.Water conservancy diversion mounting portion 11 and water conservancy diversion protrusion 111 are
Circular ring structure.The aperture in liquid guide flow hole 104 is less than the diameter of liquid gas mixing channel 101.
In the present embodiment, tangential gas introducing port 102 is 3-9, and annular is distributed on the side of air deflector 10.Respectively cut
Sustained height is in gas introducing port 102.The shape of tangential gas introducing port 102 can be square hole, circular hole or elliptical aperture etc..
By the design of air deflector 10, the gas entered from tangential gas introducing port 102, the shape in liquid gas mixing channel 101
At swirling eddy.Liquid is via liquid entrance hole 103 and liquid guide flow hole 104, into liquid gas mixing channel 101, with swirling eddy
The rotation mixing of liquids and gases is realized in friction mixing.Liquids and gases can be made to be sufficiently mixed as a result, and by liquid gas mixture
Accurately import downstream.
Please refer to Fig. 4.Air deflector 10 is fixed at the inside of shell 20, the inner surface of shell 20 and the appearance of air deflector 10
Air chamber 21 is formed between face, each tangential gas introducing port 102 is connected to air chamber 21.Gas is offered on the outer surface of shell 20
Body entrance 22, gas access 22 are connected to air chamber 21 by gas flow 23.
Gas enters air chamber 21 from the gas access 22 of 20 outer surface of shell as a result, then passes through tangential gas introducing port
102 enter liquid gas mixing channel 101.
Further, the outer surface of shell 20 is also provided with the liquid inlet of connection liquid entrance hole 103, in order to import
Liquid.It is additionally provided with sealing element between water conservancy diversion mounting portion 11 and shell 20, prevents gas from leaking.
Driving assembly 30 includes magnetic shield 31, and magnetic shield 31 is fixed at the inside of shell 20, in the inside of magnetic shield 31
Sky is formed every magnetic cavity, every the top and bottom of magnetic cavity perforation magnetic shield 31.
Air deflector 10 is fixedly connected with magnetic shield 31.Specifically, the top surface of magnetic shield 31 offers and 111 phase of water conservancy diversion protrusion
Match every abampere tankage, water conservancy diversion protrusion 111 is fixed at every in abampere tankage.
Every being fixed with main shaft 32 in magnetic cavity.Armature 33 is equipped between main shaft 32 and air deflector 10, armature 33 can be every magnetic
It is intracavitary to slide up and down.Elastic component 34 is equipped between armature 33 and main shaft 32.
Flux sleeve 35 is arranged on magnetic shield 31, flux sleeve 35 is fixed at the inside of shell 20.The internal diameter of flux sleeve 35
Greater than the outer diameter of magnetic shield 31.
End cap 36 is fixed between the top of flux sleeve 35 and the top of magnetic shield 31.End cap 36 is sheathed on magnetic shield 31
On, it is fixedly connected with magnetic shield 31 and flux sleeve 35.
The length of flux sleeve 35 is greater than the length of magnetic shield 31.The bottom of main shaft 32 in magnetic cavity from every stretching out and flux sleeve
Magnetic conductive part 351 is fixed between 35 bottom, magnetic conductive part 351 is sheathed on main shaft 32, is fixedly connected with main shaft 32 and flux sleeve
35.Magnetic conductive part 351 and flux sleeve 35 are an integral molding structure.
Bobbin 37 is equipped between end cap 36 and magnetic conductive part 351.Bobbin 37 is sheathed on magnetic shield 31, is fixedly connected and is led
Magnetic part 351.A toroid ring recess is offered on the annular surface of bobbin 37, is wound with driving coil 38 in toroid ring recess.It drives
38 electrode electrically connected piece 39 of moving winding.
End cap 36, flux sleeve 35, magnetic conductive part 351, main shaft 32, armature 33 and magnetic shield 31 constitute magnetic loop.Electrode slice 39
Electric drive circuit is constituted with driving coil 38.
When electrode slice 39 is plus control signal, driving coil 38 is powered, and armature 33 is by downward electromagnetic force court
It is mobile close to the direction of main shaft 32, and then open spray solenoid valve and compress elastic component 34.When controlling blackout, driving
Coil 38 powers off, and elastic component 34 resets, and it is mobile towards the direction for deviating from main shaft 32 by upward power to make armature 33, and then make spraying
Solenoid valve is closed.
Specifically, the power supply notch outstanding of pole piece 39 is offered on flux sleeve 35, convenient for the electrical connection driving line of electrode slice 39
Circle 38.
Please refer to 4 and Fig. 5.Ejection assemblies 40 include spool 42 and valve seat 41.The top of valve seat 41 is protruded into every magnetic cavity, with master
The bottom of axis 32 is fixedly connected.
Spool 42 includes spool column 421 and valve core head 422, and the first end of spool column 421 is fixedly connected with armature 33, spool
The second end of column 421 sequentially passes through armature 33, main shaft 32 and valve seat 41, is fixedly connected with valve core head 422.Spool column 421 slides
Connect main shaft 32 and valve seat 41.
Specifically, offering armature slot on the bottom surface of armature 33, the slot bottom of armature slot is provided with the top surface of perforation armature 33
Armature hole, the area in armature hole are less than the area of armature slot, so that armature slot and armature hole form a shoulder hole structure.Spool column
421 first end is arranged in armature hole, is fixedly connected with armature hole.
The spindle hole of the top and bottom of perforation main shaft 32, the shape of spindle hole and the shape of armature slot are offered on main shaft 32
Shape matching.Spool column 421 is arranged in spindle hole, is slidably connected with spindle hole.
The bottom surface of valve seat 41 offers spout 411, and the top surface of valve seat 41 offers the valve seat orifice of perforation spout 411.Valve seat
The area in hole is less than the area of spindle hole, so that valve seat orifice and spindle hole form a shoulder hole structure.The shape and valve of valve seat orifice
The shape of stem 421 matches.
Elastic component 34 is spring.Spring pocket is set on spool column 421, is located in spindle hole.The first end of spring contradicts rank
Cascaded surface between metal trough and armature hole, the second end of spring contradict the cascaded surface between spindle hole and valve seat orifice.
Specifically, the bottom surface of main shaft 32 offers main shaft mounting groove.The top surface center projections of valve seat 41 form valve seat protrusion,
Valve seat protrusion is embedded in main shaft mounting groove.The slot bottom of spindle hole perforation main shaft mounting groove.The top surface of valve seat orifice perforation valve seat protrusion.
The inner hollow of spool column 421 forms spool chamber 4211, and spool chamber 4211 penetrates through the top surface of spool column 421.Spool
Column 421 is recessed towards the part of valve core head 422 to the central axes of spool column 421, and injection gap 4212 is formed between valve seat orifice,
The bottom of spool chamber 4211 is equipped with several eddy flow slots 4213, each connection of eddy flow slot 4213 injection gap 4212 and spool chamber 4211.
Liquid gas mixture is flow in spool chamber 4211 from air deflector 10, and flow to injection gap by eddy flow slot 4213
4212.Eddy flow slot 4213 aggravates the turbulence state of liquid gas mixture, and gas-liquid two-phase is further uniformly mixed.
Specifically, the quantity of eddy flow slot 4213 is 3-8, multiple eddy flow slots 4213 surround 360 ° of axis of spool column 421
Equal part distribution, forms eddy flow trend.The direction of eddy flow slot 4213 is not directly toward the axis of spool column 421, but and spool
The axis of column 421 forms pre-determined tilt angle, which is 5-20 °.
Valve core head 422 is set at the spout 411 of 41 bottom surface of valve seat.When armature 33 is in initial position, valve core head 422 is blocked
Spout 411, at this point, external pressure is higher than the pressure in injection gap 4212, spray solenoid valve is closed.
Band movable valve plug column 421 moves down when armature 33 is driven shifting under the influence of moving winding 38, and then moves down valve core head 422,
Laval nozzle structure is formed between valve core head 422 and spout 411.At this point, the pressure in injection gap 4212 is greater than external pressure
By force.Under the action of Laval nozzle structure, it is spraying to obtain nano sized particles with high speed ejection for liquid gas mixture.
The flow that can control spout 411 to spray by the electromagnetic states of power control driving coil 38, can specifically pass through
Adjustment driving input pulsewidth, duty ratio etc. obtain corresponding flow.
Specifically, valve core head 422 is ball valve core print.Spout 411 is dovetail groove spout, the notch of dovetail groove spout 411
Area is greater than slot bottom area.The cell wall of dovetail groove spout and the spherical surface of ball valve core print constitute the Lavalle first shunk and expanded afterwards and spray
Pipe structure.
In the present embodiment, magnetic shield 31 offers annular magnetic shield slot from the annular surface that the top surface of shell 20 is stretched out,
The first O-ring 301 is arranged in annular magnetic shield slot.Ring-shaped valve seats seal groove, annular plate valve are offered on the annular surface of valve seat 41
The second O-ring 401 is arranged in seat seal groove.First O-ring 301 and the second O-ring 401 make spray solenoid valve during installation
Good seal.
It is also provided with ring-shaped valve seats heat dam below ring-shaped valve seats seal groove, is arranged in ring-shaped valve seats heat dam heat-insulated
Ring 402.Heat insulation loop 402 is for preventing engine cylinder head temperature from reaching valve seat 41.
Specifically, end cap 36, flux sleeve 35, magnetic conductive part 351, main shaft 32, armature 33 and spool 42 material be soft magnetism not
Become rusty steel.Air deflector 10, valve seat 41, magnetic shield 31 and spring material be stainless steel.Spool 42 selects soft-magnetic stainless steel, then spool
42 can also be mobile by the effect in magnetic field, further increases the opening and closing effect of spray solenoid valve.
Shell 20, heat insulation loop 402, bobbin 37 material be engineering plastics.First O-ring 301 and the second O-ring 401
Material be rubber.
Integration liquid-gas two-phase flow body delicate metering spray solenoid valve provided in this embodiment, passes through the tangential of air deflector 10
Gas introducing port 102 forms swirling eddy in liquid gas mixing channel 11, makes the rotation mixing of liquid gas two-phase；Made by eddy flow slot 4213
Liquid gas two-phase is further uniformly mixed, and is made liquid gas mixture with high speed ejection spray orifice by Laval nozzle structure, is obtained minimum
Particle spray.The effect of the spray solenoid valve is advantageous to the fuel oil and engine exhaust emission system of combustion system of engine
Urea solution metering and atomization.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of integration liquid-gas two-phase flow body delicate metering spray solenoid valve, which is characterized in that including air deflector, the water conservancy diversion
Device includes opposite two sides, and liquid gas mixing channel is wherein offered in one side；The air deflector further includes homogeneous with opposite two sides
Adjacent side offers several tangential gas introducing ports, each tangential gas introducing port connection on the side of the air deflector
The liquid gas mixing channel；Liquid entrance hole is also provided on the side of the air deflector, the liquid entrance hole is connected to the liquid
Gas mixing channel.
2. spray solenoid valve according to claim 1, which is characterized in that the liquid gas mixing channel is circular trough, described to cut
Cell wall to the hole wall and the liquid gas mixing channel in gas flow guiding hole is tangent；Each tangential gas introducing port is in same height
Degree；Several tangential gas introducing port annulars are distributed on the side of the air deflector；The liquid entrance hole passes through liquid
Deflector hole is connected to the slot bottom of the liquid gas mixing channel.
3. spray solenoid valve according to claim 1, which is characterized in that the spray solenoid valve further includes shell, driving
Component and ejection assemblies；The air deflector, driving assembly and ejection assemblies are mounted on the shell；
The ejection assemblies include spool and valve seat；The valve seat is fixedly connected with the shell, the spool include spool column and
Valve core head；
The bottom surface of the valve seat offers spout, and the top surface of the valve seat offers the valve seat orifice for penetrating through the spout；The valve
Stem includes opposite first end and the second end, and the second end passes through the valve seat orifice, is fixedly connected with the valve core head；Institute
Spool column is stated to be slidably connected the valve seat orifice；The valve core head and the spout constitute Laval nozzle structure.
4. spray solenoid valve according to claim 3, which is characterized in that the inner hollow of the spool column forms spool
Chamber, the spool chamber penetrate through the top surface of the spool column；The spool column is towards the part of the valve core head into spool column
Axis recess forms injection gap between the valve seat orifice；
The bottom of the spool chamber is equipped with several eddy flow slots, and each eddy flow slot is connected to the injection gap and the spool chamber.
5. spray solenoid valve according to claim 3, which is characterized in that the air deflector is fixed at the interior of the shell
Portion；Air chamber is formed between the inner surface of the shell and the outer surface of the air deflector, each tangential gas introducing port is equal
It is connected to air chamber；Gas access is offered on the outer surface of the shell, the gas access is connected to gas by gas flow
Chamber；
The outer surface of the shell is also provided with the liquid inlet of connection liquid entrance hole.
6. spray solenoid valve according to claim 3, which is characterized in that the driving component includes magnetic shield, it is described every
Magnetosheath is fixedly connected with the shell；The inner hollow of the magnetic shield is formed every magnetic cavity, described to penetrate through the magnetic shield every magnetic cavity
Top and bottom；
The bottom of the air deflector is protruded into described every in magnetic cavity；It is described every being also fixed with main shaft in magnetic cavity；The main shaft and institute
It states and is equipped with armature between air deflector, the armature is slidably connected described every magnetic cavity；Bullet is equipped between the armature and the main shaft
Property part；
The main shaft is fixedly connected with the valve seat；The armature is fixedly connected with the first end of the spool column, the spool column
The second end sequentially pass through the armature, main shaft and valve seat, be fixedly connected with the valve core head；The spool column is slidably connected institute
State main shaft and valve seat.
7. spray solenoid valve according to claim 6, which is characterized in that flux sleeve is arranged on the magnetic shield, it is described
Flux sleeve is fixedly connected with the shell；The internal diameter of the flux sleeve is greater than the outer diameter of the magnetic shield；
End cap is fixed between the top of the flux sleeve and the magnetic shield；The bottom of the main shaft is stretched out described every magnetic
Chamber；Magnetic conductive part is fixed between the bottom of the flux sleeve and the bottom of the main shaft.
8. spray solenoid valve according to claim 7, which is characterized in that be equipped with line between the end cap and the magnetic conductive part
Coil；The bobbin fixing sleeve is set on the magnetic shield；Driving coil, the driving coil are wound on the bobbin
It is electrically connected with electrode slice；
The first O-ring is also arranged on the magnetic shield；The second O-ring and heat insulation loop are also arranged on the valve seat；
The end cap, flux sleeve, magnetic conductive part, main shaft, armature and spool material be soft-magnetic stainless steel.
9. spray solenoid valve according to claim 1, which is characterized in that the opposite two sides of the air deflector is respectively to push up
Face and bottom surface；The bottom of the air deflector is fixed with water conservancy diversion mounting portion, and the water conservancy diversion mounting portion is around the side of the air deflector
Face setting；
The peripheral part of the water conservancy diversion mounting portion protrudes to form water conservancy diversion protrusion；The water conservancy diversion protrusion, water conservancy diversion mounting portion bottom surface and water conservancy diversion
The bottom surface of device, which is enclosed, is set as water conservancy diversion mounting groove, and the liquid gas mixing channel penetrates through the center of the slot bottom of the water conservancy diversion mounting groove；
The bottom surface of the water conservancy diversion mounting portion and the bottom surface of the air deflector are in same plane；The air deflector is cylindrical structure,
The side of the air deflector is cylindrical surface；The water conservancy diversion mounting portion and water conservancy diversion protrusion are circular ring structure；The liquid guide flow hole
Aperture be less than the liquid gas mixing channel diameter.
10. spray solenoid valve according to claim 6, which is characterized in that armature slot is offered on the bottom surface of the armature,
The slot bottom of the armature slot is provided with the armature hole for penetrating through the top surface of the armature；The area in the armature hole is less than the armature slot
Area, the armature slot and armature hole form a shoulder hole structure；The first end of the spool column is arranged in the armature
In hole, it is fixedly connected with the armature hole；
The spindle hole for penetrating through the top and bottom of the main shaft, the shape and armature slot of the spindle hole are offered on the main shaft
Shape matching；The spool column is arranged in the spindle hole, is slidably connected with the spindle hole；
The area of the valve seat orifice is less than the area of spindle hole, and the valve seat orifice and spindle hole form a shoulder hole structure；It is described
The shape of valve seat orifice is matched with the shape of the spool column；
The elastic component is spring；The spring pocket is set on the spool column, and is located in the spindle hole；The spring
First end contradicts the cascaded surface between the armature slot and armature hole, and the second end of the spring contradicts the spindle hole and valve seat
Cascaded surface between hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811215877.7A CN109013083B (en) | 2018-10-18 | Integrated liquid-gas two-phase fluid precise metering spray electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811215877.7A CN109013083B (en) | 2018-10-18 | Integrated liquid-gas two-phase fluid precise metering spray electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109013083A true CN109013083A (en) | 2018-12-18 |
| CN109013083B CN109013083B (en) | 2024-07-26 |
Family
ID=
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110005831A (en) * | 2019-04-26 | 2019-07-12 | 江苏巴腾科技有限公司 | A kind of valve seat and horizontal pitching in nozzle |
| CN114658580A (en) * | 2022-03-15 | 2022-06-24 | 上海工程技术大学 | Air-entraining jet nozzle with swirl groove on head guide |
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