CN109092582A - A kind of liquid-gas two-phase flow body delicate metering spray solenoid valve - Google Patents
A kind of liquid-gas two-phase flow body delicate metering spray solenoid valve Download PDFInfo
- Publication number
- CN109092582A CN109092582A CN201811215872.4A CN201811215872A CN109092582A CN 109092582 A CN109092582 A CN 109092582A CN 201811215872 A CN201811215872 A CN 201811215872A CN 109092582 A CN109092582 A CN 109092582A
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- China
- Prior art keywords
- armature
- slot
- hole
- liquid
- air deflector
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- 239000007921 spray Substances 0.000 title claims abstract description 33
- 230000005514 two-phase flow Effects 0.000 title claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 84
- 210000002421 cell wall Anatomy 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 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
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 abstract description 11
- 238000004880 explosion Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 53
- 238000010586 diagram Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 239000002245 particle Substances 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
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 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
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000007787 solid Substances 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 liquid-gas two-phase flow body delicate metering spray solenoid valves, including air deflector；Include opposite two sides on the air deflector, on one side on offer liquid guide flow slot, several liquid conductance discharge orifices are offered on another side；The liquid conductance discharge orifice penetrates through the slot bottom of the liquid guide flow slot；The air deflector further includes the side adjacent with opposite two sides, and several gas side openings are offered on the side of the air deflector, and the gas side opening penetrates through the cell wall of the liquid guide flow slot.Liquid-gas two-phase flow body delicate metering spray solenoid valve provided by the invention, gas enter liquid guide flow slot from gas side opening, impact and the liquid in the liquid guide flow slot that rubs, and realize the mixing of liquid gas two-phase.Liquid gas mixture flows out air deflector from liquid conductance discharge orifice to a certain degree after explosion.
Description
Technical field
The present invention relates to spraying field more particularly to a kind of 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 liquid-gas two-phase flow body delicate metering spray solenoid valves, to solve liquid gas two-phase
Mix non-uniform problem.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of liquid-gas two-phase flow body delicate metering spray solenoid valve, including air deflector；It include opposite on the air deflector
Two sides, on one side on offer liquid guide flow slot, several liquid conductance discharge orifices are offered on another side；The liquid conductance discharge orifice penetrates through institute
State the slot bottom of liquid guide flow slot；The air deflector further includes the side adjacent with opposite two sides, the side of the air deflector
On offer several gas side openings, the gas side opening penetrates through the cell wall of the liquid guide flow slot.
Optionally, the opposite two sides of the air deflector is respectively top and bottom；The liquid guide flow slot is opened in institute
State the top surface of air deflector；
It is fixed with water conservancy diversion mounting portion around the notch of the liquid guide flow slot, the air deflector is in the water conservancy diversion mounting portion
On projection be located at the water conservancy diversion mounting portion outer profile within；
Several gas flow guiding holes are offered on the water conservancy diversion mounting portion；The gas flow guiding hole penetrates through the water conservancy diversion mounting portion
Top and bottom, also penetrate through the medial surface of the water conservancy diversion mounting portion；Each gas side opening and each gas flow guiding hole one
One is corresponding, and each gas flow guiding hole is connected to the corresponding gas side opening.
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 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, and the bottom surface of the water conservancy diversion mounting portion contradicts the magnetic shield
Top surface；It is described every being also fixed with main shaft in magnetic cavity；Armature, the armature sliding are equipped between the main shaft and the air deflector
Connection is described every magnetic cavity；Elastic component is equipped between the armature and the main shaft；
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 equipped between the top and the magnetic shield of the magnetic conduction chamber；The end cap fixing sleeve is set to the magnetic shield
On, it is fixedly connected with the flux sleeve；
The bottom of the main shaft is from described every stretching out in magnetic cavity；It is equipped with and leads between the bottom of the flux sleeve and the main shaft
Magnetic part；The magnetic conductive part fixing sleeve is set on the main shaft, is fixedly connected with the flux sleeve.
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 medial surface of the water conservancy diversion mounting portion is equipped with the first guiding surface, the first guiding surface connection
The cell wall of the liquid guide flow slot；The cell wall bottom of the liquid guide flow slot passes through the second guiding surface link slot bottom；
The center of the liquid guide flow slot is additionally provided with a central deflector hole, and the aperture of the center deflector hole is greater than the liquid
The aperture of conductance discharge orifice；The center deflector hole penetrates through the bottom surface of the air deflector.
Optionally, several gas side hole annulars are equidistantly arranged on the side of the air deflector；Several liquid
Conductance discharge orifice annular is equidistantly arranged in the slot bottom of the liquid guide flow slot；
The air deflector is cylindrical structure, and the water conservancy diversion mounting portion is circular ring structure, and the liquid guide flow slot is circular trough；
The outer diameter of the water conservancy diversion mounting portion is greater than the outer diameter of the air deflector.
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:
Liquid-gas two-phase flow body delicate metering spray solenoid valve provided by the invention, gas enter liquid guide flow from gas side opening
Slot, impacts and the liquid in the liquid guide flow slot that rubs, and realizes the mixing of liquid gas two-phase.To a certain degree after explosion liquid gas mixture from
Liquid conductance discharge orifice flows out air deflector.
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 schematic top plan view 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 partial structure diagram and sectional view of ejection assemblies provided in an embodiment of the present invention.
It illustrates: 10, air deflector；101, liquid guide flow slot；102, gas side opening；103, liquid conductance discharge orifice；104, in
Entreat deflector hole；105, the second guiding surface；11, water conservancy diversion mounting portion；111, gas flow guiding hole；112, the first guiding surface；20, shell
Body；30, driving assembly；301, the 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 liquid-gas two-phase flow body delicate metering spray solenoid valves, and liquid gas two-phase can be made to be sufficiently mixed,
Obtain being sprayed for nano sized particles.
Please refer to Fig. 1.The liquid-gas two-phase flow body delicate metering spray solenoid valve includes air deflector 10, shell 20, driving group
Part 30 and ejection assemblies 40.Air deflector 10, driving assembly 30 and ejection assemblies 40 are mounted on shell 20.It is solid in Fig. 1
Arrow is gas flow, and hollow arrow is liquid flow direction.
Each structure is described in detail below.
Fig. 2 is please referred to Fig. 4.Air deflector 10 wraps opposite top and bottom, and the side adjacent with top surface, bottom surface
Face.Liquid guide flow slot 101 is offered on the top surface of air deflector 10, and several gas sides are offered on the cell wall of liquid guide flow slot 101
Hole 102, each gas side opening 102 penetrate through the side of air deflector 10.The slot bottom of liquid guide flow slot 101 offers several liquid conductance discharge orifices
103, liquid conductance discharge orifice 103 penetrates through the bottom surface of air deflector 10.
Gas enters liquid guide flow slot 101 from gas side opening 102, impacts and the liquid in the liquid guide flow slot 101 that rubs, real
The initial mixing of existing liquid, gas, liquid gas mixture flows out air deflector 10 from liquid conductance discharge orifice 103 to a certain degree after explosion.
Specifically, the notch around liquid guide flow slot 101 is fixed with water conservancy diversion mounting portion 11, air deflector 10 is installed in water conservancy diversion
Projection in portion 11 is in the outer profile of water conservancy diversion mounting portion 11.
Several gas flow guiding holes 111 are offered on water conservancy diversion mounting portion 11, each gas flow guiding hole 111 penetrates through water conservancy diversion mounting portion 11
Top and bottom, also penetrate through water conservancy diversion mounting portion 11 inner surface.Each gas side opening 102 and each gas flow guiding hole 111 1 are a pair of
It answers, each gas flow guiding hole 111 is connected to corresponding gas side opening 102.
The inner surface of water conservancy diversion mounting portion 11 is equipped with the first guiding surface 112, and the first guiding surface 112 connects liquid guide flow
The cell wall of slot 101.The cell wall bottom of liquid guide flow slot 101 passes through 105 link slot bottom of the second guiding surface.Guiding surface makes fluid
Circulation it is more smooth.
Specifically, air deflector 10 is cylindrical structure, water conservancy diversion mounting portion 11 is circular ring structure, and liquid guide flow slot 101 is circle
Slot.The outer diameter of water conservancy diversion mounting portion 11 is greater than the outer diameter of air deflector 10.Several 102 annulars of gas side opening are equidistantly arranged in air deflector
On 10 side.Several 103 annulars of liquid conductance discharge orifice are equidistantly arranged in the slot bottom of liquid guide flow slot 101.
The center of liquid guide flow slot 101 is additionally provided with a central deflector hole 104.Central deflector hole 104 penetrates through air deflector 10
Bottom surface.The aperture of central deflector hole 104 is greater than the aperture of liquid conductance discharge orifice 103.Liquid conductance discharge orifice 103 is 2-6, gas flow guiding
Hole 111 is 4-12.
By the design of air deflector 10, liquids and gases can be made to be sufficiently mixed, and under liquid gas mixture is accurately imported
One process.
Please refer to Fig. 5.Driving assembly 30 includes magnetic shield 31, and magnetic shield 31 is fixed at the inside of shell 20.Magnetic shield
31 inner hollow is formed every magnetic cavity, every the top and bottom of magnetic cavity perforation magnetic shield 31.
Air deflector 10 is protruded into from the top surface every magnetic cavity every in magnetic cavity, the side of air deflector 10 and the bottom of water conservancy diversion mounting portion 11
The cascaded surface that face is formed contradicts the top surface of magnetic shield 31, is installed on air deflector 10 on magnetic shield 31.
Every being also fixed with main shaft 32 in magnetic cavity.Between main shaft 32 and air deflector 10 be equipped with armature 33, armature 33 can every
It is slided up and down in magnetic cavity.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 equipped between the top and magnetic shield 31 of flux sleeve 35.End cap 36 is sheathed on magnetic shield 31, Gu
Surely magnetic shield 31 and flux sleeve 35 are connected.Specifically, the apical side height of magnetic shield 31 is higher than the apical side height of end cap 36, end cap 36
Apical side height be higher than flux sleeve 35 apical side height.
The bottom of main shaft 32 is stretched out from every magnetic cavity, and magnetic conductive part 351 is equipped between the bottom and main shaft 32 of flux sleeve 35.It leads
Magnetic 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 integrally formed
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 5 and Fig. 6.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 spool column 421 includes opposite first end and the second end.
The first end of spool column 421 is fixedly connected with armature 33, and the second end of spool column 421 sequentially passes through armature 33,32 and of main shaft
Valve seat 41 is fixedly connected with valve core head 422.Spool column 421 is slidably connected 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.
Liquid-gas two-phase flow body delicate metering spray solenoid valve provided in this embodiment, at the beginning of making liquid gas two-phase by air deflector 10
Step mixing；Liquid gas two-phase is uniformly mixed further by eddy flow slot 4213, and liquid gas mixture is made by Laval nozzle structure
With high speed ejection spray orifice, it is spraying to obtain nano sized particles.The effect of the spray solenoid valve is advantageous to combustion system of engine
The urea solution metering and atomization of fuel oil and engine exhaust emission system.
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 liquid-gas two-phase flow body delicate metering spray solenoid valve, which is characterized in that including air deflector；It is wrapped on the air deflector
Include opposite two sides, on one side on offer liquid guide flow slot, several liquid conductance discharge orifices are offered on another side；The liquid conductance stream
Hole penetrates through the slot bottom of the liquid guide flow slot；The air deflector further includes the side adjacent with opposite two sides, the water conservancy diversion
Several gas side openings are offered on the side of device, the gas side opening penetrates through the cell wall of the liquid guide flow slot.
2. 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 liquid guide flow slot is opened in the top surface of the air deflector；
It is fixed with water conservancy diversion mounting portion around the notch of the liquid guide flow slot, the air deflector is on the water conservancy diversion mounting portion
Projection is located within the outer profile of the water conservancy diversion mounting portion；
Several gas flow guiding holes are offered on the water conservancy diversion mounting portion；The gas flow guiding hole penetrates through the top of the water conservancy diversion mounting portion
Face and bottom surface also penetrate through the medial surface of the water conservancy diversion mounting portion；Each gas side opening and each gas flow guiding hole one are a pair of
It answers, each gas flow guiding hole is connected to the corresponding gas side opening.
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 of the spool column passes through the valve seat orifice, is fixedly connected
The valve core head；The spool column is slidably connected the valve seat orifice；The valve core head and the spout constitute Laval nozzle knot
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 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 air deflector protrudes into described every described in magnetic cavity, the cascaded surface between the water conservancy diversion mounting portion and the air deflector is contradicted
The top surface of magnetic shield；It is described every being also fixed with main shaft in magnetic cavity；Armature is equipped between the main shaft and the air deflector, it is described
Armature is slidably connected described every magnetic cavity；Elastic component is equipped between the armature and the main shaft；
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.
6. spray solenoid valve according to claim 5, 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 and the magnetic shield of the magnetic conduction chamber；The bottom of the main shaft is from described every in magnetic cavity
It stretches out；Magnetic conductive part is fixed between the bottom of the flux sleeve and the main shaft.
7. spray solenoid valve according to claim 6, 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.
8. spray solenoid valve according to claim 2, which is characterized in that the medial surface of the water conservancy diversion mounting portion is equipped with the
One guiding surface, first guiding surface connect the cell wall of the liquid guide flow slot；The cell wall bottom of the liquid guide flow slot
Pass through the second guiding surface link slot bottom；
The center of the liquid guide flow slot is additionally provided with a central deflector hole, and the aperture of the center deflector hole is greater than the liquid conductance
The aperture of discharge orifice；The center deflector hole penetrates through the bottom surface of the air deflector.
9. spray solenoid valve according to claim 8, which is characterized in that several equidistant arrangements of gas side hole annular
In on the side of the air deflector；Several liquid conductance discharge orifice annulars are equidistantly arranged in the slot bottom of the liquid guide flow slot；
The air deflector is cylindrical structure, and the water conservancy diversion mounting portion is circular ring structure, and the liquid guide flow slot is circular trough；It is described
The outer diameter of water conservancy diversion mounting portion is greater than the outer diameter of the air deflector.
10. spray solenoid valve according to claim 5, 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 |
|---|---|---|---|
| CN201811215872.4A CN109092582B (en) | 2018-10-18 | Liquid-gas two-phase fluid precise metering spray electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811215872.4A CN109092582B (en) | 2018-10-18 | Liquid-gas two-phase fluid precise metering spray electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109092582A true CN109092582A (en) | 2018-12-28 |
| CN109092582B CN109092582B (en) | 2024-07-02 |
Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| JP2004169921A (en) * | 2002-11-19 | 2004-06-17 | Robert Bosch Gmbh | Solenoid valve |
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| CN103185166A (en) * | 2011-12-29 | 2013-07-03 | 浙江三花股份有限公司 | Solenoid valve and refrigeration plant with same |
| CN203594853U (en) * | 2013-12-03 | 2014-05-14 | 宜兴市四通家电配件有限公司 | Direct-current solenoid valve used for refrigerator |
| CN106369205A (en) * | 2015-07-22 | 2017-02-01 | 罗伯特·博世有限公司 | Electrically closed solenoid valve |
| CN209549753U (en) * | 2018-10-18 | 2019-10-29 | 广西卡迪亚科技有限公司 | A kind of liquid-gas two-phase flow body delicate metering spray solenoid valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004169921A (en) * | 2002-11-19 | 2004-06-17 | Robert Bosch Gmbh | Solenoid valve |
| DE102009051572A1 (en) * | 2009-10-26 | 2011-05-05 | Hydac Fluidtechnik Gmbh | Magnet valve for controlling hydraulic operating agent in hydraulic load of hydraulic brake system in motor vehicle, has housing part whose receiving opening is closable with another housing part, after insertion of movable components |
| CN103185166A (en) * | 2011-12-29 | 2013-07-03 | 浙江三花股份有限公司 | Solenoid valve and refrigeration plant with same |
| CN203594853U (en) * | 2013-12-03 | 2014-05-14 | 宜兴市四通家电配件有限公司 | Direct-current solenoid valve used for refrigerator |
| CN106369205A (en) * | 2015-07-22 | 2017-02-01 | 罗伯特·博世有限公司 | Electrically closed solenoid valve |
| CN209549753U (en) * | 2018-10-18 | 2019-10-29 | 广西卡迪亚科技有限公司 | A kind of liquid-gas two-phase flow body delicate metering spray solenoid valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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