CN106969185B - A kind of zero pressure difference starting high life solenoid valve - Google Patents
A kind of zero pressure difference starting high life solenoid valve Download PDFInfo
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- CN106969185B CN106969185B CN201710226456.3A CN201710226456A CN106969185B CN 106969185 B CN106969185 B CN 106969185B CN 201710226456 A CN201710226456 A CN 201710226456A CN 106969185 B CN106969185 B CN 106969185B
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- valve
- guide
- core iron
- component
- seal
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to a kind of zero pressure differences to start high life solenoid valve, is connected through a screw thread fixed casing including valve seat, valve deck, with valve seat and valve deck, first seal is equipped between casing and valve seat and is sealed；Casing top is equipped with quiet core iron, and casing is welded together with quiet core iron；Dynamic core iron part and guide's component are equipped with below quiet core iron, guide's component is set in the internal cavity of dynamic core iron part, and returning spring is equipped between guide's component and quiet core iron；It is equipped with second seal in dynamic core iron part, second seal lower part and the valve port gluing, sealing being located on valve seat when close valve state.Returning spring of the present invention is abutted against with guide's component, can be reduced suffered load shock on sealing element in valve body closing process, be prevented liquid hammer, so that the valve body service life is higher；Above scheme through the invention significantly reduces requirement and manufacturing cost to mating coil electromagnetism power, and inherits the characteristic of direct-acting electromagnetic valve zero pressure difference valve opening, and use is more reliable and more stable.
Description
Technical field
The present invention relates to a kind of zero pressure differences to start high life solenoid valve, belongs to Solenoid Valve Technology field.
Background technique
Control valve field frequently refers to solenoid valve, with the on-off of medium in control system, according to different function in system
Demand, and open in usual, normally closed type can be divided into, Direct Action Type and pilot-operated type, pilot-operated type electricity can be divided into according to solenoid valve internal structure again
Magnet valve generally requires to make after pilot valve is opened by a lesser aperture (pilot valve) inside electromagnetic coil band moving electromagnetic valve
The seal-moving part that must be sealed on larger aperture opens larger valve port (main valve) under the action of pressure difference, to realize control system
The effect of medium on-off in system is zero or pressure difference in valve body inlet outlet pressure differential then for general guide electromagnetic valve
In the case where very little (1psi or less) often aperture is insufficient or is unable to valve opening, and for direct-acting electromagnetic valve, though can be with
Accomplish that zero pressure difference starts, but as the electromagnetic force of the bigger required mating coil of valve port is bigger, often volume is larger for such coil,
Higher cost.
CN201120229694 discloses a kind of solenoid valve, as above the sealing element inside such movable iron core of electromagnetic valve
Slow down impact to sealing element when solenoid valve closes valve equipped with a returning spring, such mode often sealing element there are still compared with
Large deformation, with the raising of valve body access times, which often will appear interior leakage, influences valve body usability
Energy.
Summary of the invention
The purpose of the present invention is to provide a kind of zero pressure differences to start high life solenoid valve, had both improved valve opening ability and use
Service life reduces requirement and manufacturing cost to mating coil electromagnetism power, and the spy with direct-acting electromagnetic valve zero pressure difference valve opening
Property.Electromagnetic valve body structure of the invention is simple, small and exquisite, is conducive to assembling production, and be applicable in high evaporating pressure difference without freon
Environmental protection refrigerant
To achieve the goals above, technical scheme is as follows.
A kind of zero pressure difference starting high life solenoid valve, including valve seat, valve deck and valve seat and valve deck are connected through a screw thread fixation
Casing, between casing and valve seat be equipped with first seal sealed；Casing top is equipped with quiet core iron, and casing and quiet core iron weld
It is connected together in succession；Dynamic core iron part and guide's component are equipped with below quiet core iron, guide's component is set to the inside of dynamic core iron part
In cavity, returning spring is equipped between guide's component and quiet core iron；Second seal is equipped in dynamic core iron part, when close valve state
Second seal lower part and the valve port gluing, sealing being located on valve seat, the top of second seal and guide's component gluing, sealing；
Valve seat includes import, outlet, and valve port is equipped with inside valve seat, external screw thread is equipped with outside valve seat, valve seat top is equipped with planar annular；Ring
Shape plane and first seal lower surface gluing, sealing；Casing part is equipped with flange, on the lower plane and first seal of flange
Surface gluing, sealing；Step plane and internal screw thread are equipped with inside valve deck, step plane is bonded with the upper plane of casing part flange；
Core iron part is successively arranged core iron, second seal and circlip along axis, and core iron part leans with valve seat when valve closing；On core iron
Equipped with top bar hole, annular slot is equipped with inside core iron lower end；Top bar hole bottom end face is connect with the upper and lower side of guide's component
To drive guide's component to open guide's aperture, annular slot connects and fixes abutting with circlip during being in valve opening；Guide's component
Lower part is equipped with protrusion, and guide's component upper post body diameter is greater than lower part column diameter, and top cylinder is all provided with lower part column side face
It is fluted；Top cylinder is abutted with returning spring.
Further, second seal is equipped at least one step, is equipped with pilot hole, pilot hole in the middle part of second seal
Upper diameter for clear opening or stepped hole, pilot hole is not more than lower diameter；When the step valve opening of second seal and block
Spring abuts against；When valve closing, the top loop side of pilot hole is bonded and seals with the protrusion on guide's component；The lower loop of pilot hole
Side is bonded and seals with the valve port on valve seat.
Further, the circlip is elastic opening annulus made of metal material.
In the solenoid valve, after coil energization excitation, static iron core of electromagnetic valve attracts each other with dynamic iron core, and dynamic iron core is in electromagnetism
Core iron gravity and frictional force are overcome under the action of power, until the upper and lower side junction of core iron top bar hole bottom end face and guide's component
It abuts, guide's aperture is in critical open state at this time, and dynamic iron core obtains certain upward kinetic energy to drive elder generation further up
It leads component and continues starting guide's aperture.In the case where static iron core of electromagnetic valve and dynamic iron core attract each other, dynamic iron core drives guide's component gram
The difference force taken on pressure, gravity and the guide's component of returning spring moves upwards, until setting in circlip and second seal
When some steps abut against, it is sealed in guide's component protrusion above second seal and is detached from second seal, second seal
The fluid of top flows to valve seat outlet by guide's aperture, and the pressure difference of sealing element upper and lower surface reduces rapidly.The dynamic iron core exists
It drives second seal to continue to overcome returning spring power, gravity by circlip under the action of electromagnetic force and acts on second seal
On difference force move upwards, until dynamic iron core fits with static iron core, the valve that second seal lower plane is just equipped with valve seat
Mouth is detached from, and valve body is opened.
After coil blackout, the dynamic iron core of the solenoid valve and static iron core lose mutual attraction, dynamic iron core component and
Successively close port and guide's aperture, valve body close guide's component under returning spring power and its difference force effect suffered up and down
It closes.
Invention has the beneficial effects that: the present invention makes core iron in not pressure difference power by the way that initial a bit of shape journey is arranged
And the initial velocity of certain auxiliary valve opening is rapidly achieved under the action of spring force, it then proceedes to drive guide's component Lai real by core iron
Existing guide opens guide's aperture, so that the pressure difference for the sealing element upper and lower being sealed on valve port reduces, reduction is further opened
Open the load of valve port；And by the circlip directly band subsequent unlatching valve port of dynamic seal, to realize zero pressure difference valve opening.It is of the present invention
Returning spring is abutted against with guide's component, can be reduced suffered load shock on sealing element in valve body closing process, be prevented liquid
It hits, extends the valve body service life；Above scheme through the invention, significantly reduce requirement to mating coil electromagnetism power and manufacture at
This, and the characteristic of direct-acting electromagnetic valve zero pressure difference valve opening is inherited, and use is more reliable and more stable.
Detailed description of the invention
Fig. 1 is solenoid valve close valve state the schematic diagram of the section structure used in the present invention.
Fig. 2 is that solenoid valve core iron used in the present invention opens guide's aperture critical state schematic diagram.
Fig. 3 is status diagram after electromagnetic valve guide aperture used in the present invention is opened.
Fig. 4 is solenoid valve valve opening state schematic diagram used in the present invention.
Fig. 5 is solenoid valve valve seat construction schematic diagram used in the present invention.
Fig. 6 is solenoid valve cannula structure schematic diagram used in the present invention.
Fig. 7 is solenoid valve valve cover structure schematic diagram used in the present invention.
Fig. 8 is solenoid valve core iron modular construction schematic diagram used in the present invention.
Fig. 9 is electromagnetic valve core iron construction schematic diagram used in the present invention.
Figure 10 is electromagnetic valve guide component side structure schematic diagram used in the present invention.
Figure 11 is electromagnetic valve guide component schematic perspective view used in the present invention.
Figure 12 is one cross section structure schematic diagram of solenoid valve second seal form used in the present invention.
Figure 13 is two cross section structure schematic diagram of solenoid valve second seal form used in the present invention.
Specific embodiment
The specific embodiment of the invention is illustrated with reference to the accompanying drawings and examples.
Embodiment
Solenoid valve as shown in Figure 1, Figure 2, Figure 3, Figure 4, including valve seat 1, valve deck 4 and valve seat 1 and valve deck 4 pass through screw thread
The casing 3 being connected and fixed is equipped with first seal 2 and is sealed between casing 3 and valve seat 1；3 top of casing is equipped with quiet core iron 6,
Casing 3 is welded together with quiet core iron 6；Dynamic core iron part 5 and guide's component 8, guide's component 8 are equipped with below quiet core iron 6
In the internal cavity of dynamic core iron part 5, returning spring 7 is equipped between guide's component 8 and quiet core iron 6；In dynamic core iron part 5
Equipped with second seal 55,55 lower part of second seal and 13 gluing, sealing of valve port being located on valve seat 1 when close valve state, second
The top of sealing element 55 and 8 gluing, sealing of guide's component.
As shown in figure 5, valve seat 1 includes import 11, outlet 12, it is equipped with valve port 13 inside valve seat 1, is equipped with outside valve seat 1 outer
Screw thread 14,1 top of valve seat are equipped with planar annular 15；Planar annular 15 and 2 lower surface gluing, sealing of first seal.
As shown in fig. 6,3 lower part of casing is equipped with flange 31, the lower plane 312 of flange is bonded with 2 upper surface of first seal
Sealing.
As shown in fig. 7, being equipped with step plane 41 and internal screw thread 42, step plane 41 and 3 lower part flange of casing inside valve deck 4
31 upper plane 311 is bonded.
As shown in figure 8, core iron part 5 is successively arranged core iron 51, second seal 55 and circlip 56 along axis, core when valve closing
Iron component 5 leans with valve seat 1.
As shown in figure 9, core iron 51 is equipped with top bar hole 511, annular slot 514 is equipped with inside 51 lower end of core iron；It appears on the stage
511 bottom end face of rank hole is abutted during valve opening with the upper and lower side junction 533 of guide's component 8 to drive guide's component 8 to open
Guide's aperture 552 is opened, annular slot 514 is connected and fixed with circlip 56.
As shown in Figure 10, Figure 11,53 lower part of guide's component is equipped with protrusion 532, and guide's component 53 top cylinder, 531 diameters are big
In lower part column diameter, top cylinder 531 and lower part column side face are equipped with groove 534；Top cylinder 531 is the same as returning spring 52
It abuts.
As shown in Figure 12 and Figure 13, second seal 55 is equipped at least one step 551, sets in the middle part of second seal 55
There is pilot hole 552, pilot hole 552 is clear opening or stepped hole, and the upper diameter of pilot hole 552 is not more than lower diameter；The
It is abutted against when 551 valve opening of step of two sealing elements 55 with circlip 56；When valve closing, the same guide in top loop side 554 of pilot hole 552
Protrusion 532 on component 53 is bonded and seals；The lower loop side 553 of pilot hole 552 on valve seat 1 valve port 13 fitting and it is close
Envelope.
The circlip 56 is elastic opening annulus made of metal material.
In the solenoid valve, after coil energization excitation, static iron core of electromagnetic valve 6 attracts each other with dynamic iron core 51, dynamic iron core 51
Core iron gravity and frictional force are overcome under the action of electromagnetic force, until 511 bottom end face of core iron top bar hole and guide's component 8 is upper
Lower end junction 533 abuts, and guide's aperture 552 is in critical open state at this time, and dynamic iron core 51 obtains certain upward kinetic energy
To drive guide's component to continue starting guide's aperture further up；As shown in Figure 2.In static iron core of electromagnetic valve 6 and dynamic iron core 51
It attracts each other down, dynamic iron core 5 drives guide's component 8 to overcome the pressure difference on pressure, gravity and the guide's component 8 of returning spring
Power moves upwards, until being sealed in second seal 55 when the step 551 that circlip 56 and second seal 55 are equipped with abuts against
Guide's component protrusion 532 of side is detached from second seal 55, and the fluid of 55 top of second seal is flowed to by guide's aperture 552
Valve seat outlet 12, the pressure difference of 55 upper and lower surface of sealing element reduces rapidly.As shown in Figure 3.Effect of the dynamic iron core 5 in electromagnetic force
Second seal 55 is driven to continue to overcome returning spring power, gravity and act in second seal 55 by circlip 56 down
Difference force moves upwards, until dynamic iron core 5 fits with static iron core 6,55 lower plane 553 of second seal is just equipped with valve seat
Valve port 13 is detached from, and valve body is opened.
After coil blackout, the dynamic iron core of the solenoid valve and static iron core lose mutual attraction, dynamic iron core component 5 and
Guide's component successively close port 13 and guide's aperture 552 under returning spring power and its difference force effect suffered up and down, valve
Body is closed.
Claims (1)
1. a kind of zero pressure difference starts high life solenoid valve, it is characterised in that: pass through spiral shell including valve seat, valve deck, with valve seat and valve deck
The casing that line is connected and fixed is equipped with first seal and is sealed between described sleeve pipe and valve seat；Described sleeve pipe top is equipped with quiet
Core iron, described sleeve pipe are welded together with quiet core iron；Dynamic core iron part and guide's component, institute are equipped with below the quiet core iron
It states guide's component to be set in the internal cavity of dynamic core iron part, returning spring is equipped between guide's component and quiet core iron；Institute
It states and is equipped with second seal in core iron part, second seal lower part is bonded close with the valve port being located on valve seat when close valve state
Envelope, the top of the second seal and guide's component gluing, sealing；The valve seat includes import, exports, inside the valve seat
Equipped with valve port, external screw thread is equipped with outside the valve seat, the valve seat top is equipped with planar annular；The planar annular and first close
Sealing lower surface gluing, sealing；Described sleeve pipe lower part is equipped with flange, and the lower plane of the flange and first seal upper surface are pasted
Close sealing；Step plane and internal screw thread, the upper plane patch of the step plane and casing part flange are equipped with inside the valve deck
It closes；The dynamic core iron part is successively arranged dynamic core iron, second seal and circlip along axis, core iron part and valve seat phase when valve closing
Against；The dynamic core iron is equipped with top bar hole, is equipped with annular slot inside the dynamic core iron lower end；Top bar hole bottom
End face is abutted with the upper and lower side junction of guide's component during valve opening to drive guide's component to open guide's aperture, the ring
Shape card slot is connected and fixed with circlip；Guide's component lower part is equipped with protrusion, and the top column diameter of guide's component is greater than
Lower part column diameter, the top cylinder and lower part column side face are equipped with groove；The top cylinder is abutted with returning spring；
The second seal is equipped at least one step, is equipped with guide's aperture, guide's aperture in the middle part of the second seal
Upper diameter for clear opening or stepped hole, guide's aperture is not more than lower diameter；The step of the second seal
It is abutted against when valve opening with circlip；When valve closing, the top loop side of guide's aperture is bonded and seals with the protrusion on guide's component；Institute
The lower loop side for stating guide's aperture is bonded and seals with the valve port on valve seat；The circlip is that elasticity made of metal material is opened
Mouth annulus；In the solenoid valve, after coil energization excitation, static core of solenoid valve iron attracts each other with dynamic core iron, moves core iron in electromagnetism
Core iron gravity and frictional force are overcome under the action of power, until dynamic core iron top bar hole bottom end face is connect with the upper and lower side of guide's component
Place abuts, and guide's aperture is in critical open state at this time, moves core iron and obtains certain upward kinetic energy to drive further up
Guide's component continues starting guide's aperture；In the case where static core of solenoid valve iron and dynamic core iron continue to attract each other, moves core iron and drive guide
Component overcomes the difference force on pressure, gravity and the guide's component of returning spring to move upwards, until circlip and the second sealing
When the step that part is equipped with abuts against, the guide's component protrusion disengaging second seal being sealed in above second seal, second
Fluid above sealing element flows to valve seat outlet by guide's aperture, and the pressure difference of sealing element upper and lower surface reduces rapidly；It is described dynamic
Core iron drives second seal to continue to overcome returning spring power, gravity and acts on second by circlip under the action of electromagnetic force
Difference force on sealing element moves upwards, until dynamic core iron fits with quiet core iron, second seal lower plane just with set on valve seat
Some valve ports are detached from, and valve body is opened；After coil blackout, the dynamic core iron and quiet core iron of the solenoid valve lose mutual attraction
Power moves core iron part and guide's component successively close port and elder generation under returning spring power and its difference force effect suffered up and down
Aperture is led, valve body is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710226456.3A CN106969185B (en) | 2017-04-09 | 2017-04-09 | A kind of zero pressure difference starting high life solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710226456.3A CN106969185B (en) | 2017-04-09 | 2017-04-09 | A kind of zero pressure difference starting high life solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106969185A CN106969185A (en) | 2017-07-21 |
| CN106969185B true CN106969185B (en) | 2019-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710226456.3A Active CN106969185B (en) | 2017-04-09 | 2017-04-09 | A kind of zero pressure difference starting high life solenoid valve |
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| CN (1) | CN106969185B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725879B (en) * | 2017-10-19 | 2019-06-07 | 上海申花电工器材有限公司 | A kind of normally closed ratio one-way flow valves |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2739085A1 (en) * | 1977-08-30 | 1979-03-08 | Technologieforschung Gmbh | MAGNETIC VALVE |
| US7163188B1 (en) * | 2004-07-30 | 2007-01-16 | Emerson Electric Co. | Solenoid valve for fluid flow |
| US7828265B2 (en) * | 2004-07-30 | 2010-11-09 | Emerson Electric Co. | Solenoid valve |
| CN201851753U (en) * | 2010-10-25 | 2011-06-01 | 浙江万向精工有限公司 | Improved ESP (Electronic Stability Program) delivery valve |
| DE102013110885A1 (en) * | 2013-10-01 | 2015-04-02 | Svm Schultz Verwaltungs-Gmbh & Co. Kg | Valve |
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2017
- 2017-04-09 CN CN201710226456.3A patent/CN106969185B/en active Active
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