CN107246489A - A kind of magnetic valve - Google Patents
A kind of magnetic valve Download PDFInfo
- Publication number
- CN107246489A CN107246489A CN201710070948.8A CN201710070948A CN107246489A CN 107246489 A CN107246489 A CN 107246489A CN 201710070948 A CN201710070948 A CN 201710070948A CN 107246489 A CN107246489 A CN 107246489A
- Authority
- CN
- China
- Prior art keywords
- cavity
- air inlet
- magnetic valve
- valve body
- guide rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000001301 oxygen Substances 0.000 claims abstract description 27
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 27
- 239000002808 molecular sieve Substances 0.000 claims description 42
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 42
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 26
- 239000000741 silica gel Substances 0.000 claims description 26
- 229910002027 silica gel Inorganic materials 0.000 claims description 26
- 229960001866 silicon dioxide Drugs 0.000 claims description 26
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 16
- 238000003754 machining Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 79
- 229910052757 nitrogen Inorganic materials 0.000 description 38
- 238000001179 sorption measurement Methods 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 10
- 238000007789 sealing Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
-
- 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
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
-
- 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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
-
- 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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1266—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being acted upon by the circulating fluid
-
- 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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1268—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like with a plurality of the diaphragms
Landscapes
- 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 discloses a kind of magnetic valve, it includes pilot valve, valve body and the guide rod in the valve body, the valve body includes air inlet cavity and outlet cavity, two contour inlet chamber boss are provided with the air inlet cavity, two contour outlet chamber boss are provided with the outlet cavity, when the air inlet cavity and the outlet cavity are assembled together, stroke above and below the guide rod can be shortened by reducing the distance between the air inlet cavity boss upper surface and the outlet cavity boss lower surface, improve oxygen generation efficiency;The pilot valve is placed in above the valve body.So, guide rod stroke is short, and oxygen generation efficiency is high, few the time required to switching;The admission pressure of pilot valve is 0.02MP, and admission pressure is small, and valve body passes through injection moulding integrated molding with interface, it is to avoid possibility of the interface with the gas leakage of valve body junction, and valve body interface need not be additionally carried out machining, save manufacturing procedure and processing cost.
Description
Technical field
The present invention relates to control valve field, and in particular to a kind of magnetic valve.
Background technology
Miniature oxygenerator on the market is largely using the principle of pressure-variable adsorption (PSA) at present, utilizes lower point of different pressures
Son sieve is to the nitrogen in air and Oxygen Adsorption capacity and the difference of selectivity, i.e., by the increase absorption nitrogen that pressurizes, decompression solution
The nitrogen of absorption.But the capacity of molecular sieve adsorption nitrogen is limited, it is impossible to persistently carry out, it is necessary to reach saturation state
Shi Jinhang is depressured the nitrogen of Dissociative adsorption, and molecular sieve could absorption nitrogen again.In order to be able to lasting oxygen processed, it is necessary to two molecules
Sieve, one is used for absorption nitrogen oxygen, and one is used to parse nitrogen, the two molecular sieve work(when Nitrogen adsorption capacity reaches saturation
Can switch over, the valve for being at this moment accomplished by a two-position four-way is switched over, in the market be mostly metal valve body
There are two guide rods to switch over oxygen processed and analysis nitrogen pipeline in diaphragm electromagnetic valve, valve body, the stroke up and down of guide rod is larger, oxygen processed
When, the flow that compressed air enters molecular sieve is larger, and for Miniature oxygenerator, molecular sieve is small, and the capacity of absorption nitrogen is small,
A large amount of compressed airs are not utilized and slatterned.
In view of drawbacks described above, creator of the present invention obtains the present invention finally by prolonged research and practice.
The content of the invention
To solve above-mentioned technological deficiency, the technical solution adopted by the present invention is that, there is provided a kind of magnetic valve, it includes guide
Valve, valve body and the guide rod in the valve body, the valve body include setting on air inlet cavity and outlet cavity, the air inlet cavity
Be equipped with two contour inlet chamber boss, the outlet cavity and be provided with two contour outlet chamber boss, the air inlet cavity and
When the outlet cavity is assembled together, reduce the air inlet cavity boss upper surface and the outlet cavity boss lower surface
The distance between can shorten stroke above and below the guide rod, improve oxygen generation efficiency;
The pilot valve is placed in above the valve body.
Can preferably, reducing the distance between the air inlet cavity boss upper surface and the outlet cavity boss lower surface
With by reducing the outlet housing depth, reducing the boss height of two silica gel pad positions of limitation on the guide rod, increase institute
State outlet cavity boss height and increase any mode in the air inlet cavity boss height to realize.
Preferably, increase silica gel mat thickness can also shorten stroke above and below the guide rod.
Preferably, increase diaphragm seal pad projected area in the horizontal plane and/or reducing silicagel pad in the horizontal plane
Projected area can reduce the admission pressure of the pilot valve.
Preferably, being provided with two molecular sieve being connected with molecular sieve interfaces, described two molecules on the outlet cavity
Sieve interface is integrated with the outlet cavity by injection.
Preferably, compressed air interface is provided with the air inlet cavity, the compressed air interface and the inlet chamber
Body is integrated by injection.
Preferably, the valve body also includes being provided with denitrogen interface on guide's cavity, guide's cavity, the denitrogen connects
Mouth is integrated with guide's cavity by injection.
Preferably, the air inlet cavity, the outlet cavity and guide's cavity are stacked from bottom to top successively.
Preferably, the admission pressure of pilot valve is 0.02MP.
Preferably, stroke is 0.5-1.5 millimeters above and below the guide rod.
Compared with the prior art the beneficial effects of the present invention are:Guide rod stroke is short, and oxygen generation efficiency is high, the time required to switching
It is few;The admission pressure of pilot valve is 0.02MP, and admission pressure is small, valve body passes through injection moulding integrated molding with interface, it is to avoid interface
With the possibility of valve body junction gas leakage, valve body interface need not be additionally carried out machining, save manufacturing procedure and be processed into
This.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in various embodiments of the present invention, required in being described below to embodiment
The accompanying drawing used is briefly described.
Fig. 1 is a kind of structure chart of magnetic valve of the embodiment of the present invention one;
Fig. 2 is a kind of structure chart of the pilot valve of magnetic valve of the embodiment of the present invention one;
Fig. 3 is a kind of profile of magnetic valve of the embodiment of the present invention one;
Fig. 4 is a kind of profile of the outlet cavity of magnetic valve of the embodiment of the present invention two;
Fig. 5 is a kind of profile of the air inlet cavity of magnetic valve of the embodiment of the present invention two;
Fig. 6 is a kind of profile of the guide rod of magnetic valve of the embodiment of the present invention two;
Fig. 7 is the profile of guide rod, silicagel pad and the diaphragm seal pad of a kind of magnetic valve of the embodiment of the present invention three;
Fig. 8 is a kind of sectional structure chart of magnetic valve of the embodiment of the present invention six.
Embodiment
Below in conjunction with accompanying drawing, the forgoing and additional technical features and advantages are described in more detail.
Embodiment one
As shown in figure 1, a kind of structure chart of the magnetic valve provided for the present embodiment, the magnetic valve includes two electromagnetic pilots
Valve 1, valve body 2 and two are located at the guide rod in valve body, and two electromagnetic priority valves 1 are respectively used to control two above valve body 2
Up and down motion of the guide rod in valve body 2, realizes the break-make of oxygen processed and analysis nitrogen pipe interface;There are four interfaces on valve body, be respectively
Four on compressed air interface 3, denitrogen interface 4, two molecular sieve interfaces (at Fig. 1 back sides) for being connected with molecular sieve, valve body 2
Interface can change their position in the case of highly constant along the circumference of valve body 2, in order to convenient according to actual conditions
Other structures are installed.
As shown in Fig. 2 in a kind of electromagnetic priority valve structure chart of the magnetic valve provided for the present embodiment, Fig. 2A figures 1 be line
Circle, 2 be iron core, and 3 be pilot gas outlet, and 4 be pilot gas import, and 5 be spring, during pilot valve no power 3 with it is 4 obstructed, it is first
When pilot valve is powered, coil 1 is powered, and upward electromagnetic force is produced to iron core 2, and when electromagnetic force is more than spring force, iron core 2 is transported upwards
Dynamic, pilot gas air inlet 4 is communicated with gas outlet 3, and the gas outlet of pilot valve is connected inside magnetic valve.B figures are electromagnetic priority valve
Symbol, it is that electromagnetic priority valve is obstructed under the electromagnetic priority valve of the bi-bit bi-pass of Electromagnetic Control, usual state, is only existed
Just connected during energization.
As shown in figure 3, a kind of cut-away view of the magnetic valve provided for the present embodiment, valve body includes end cap 8, inlet chamber
Body 1, outlet cavity 2, guide's cavity 3 and gland 6, they are from bottom to top stacked clamping, Ran Houyou layer by layer according to the order
Bolt is fixed, and this mounting means is stacked.Compressed air interface P, the He of air inlet cavity 1 are provided with air inlet cavity 1
Compressed air interface P is integral by injection;There are two molecular sieves connected with molecular sieve interface A and B on outlet cavity 2, go out
Air cavity 2 and two molecular sieve interfaces are integral by injection;There are denitrogen interface R, guide's cavity 3 and denitrogen on guide's cavity 3
Interface R is integral by injection;This four interfaces are integral by injection with valve body, and this not only optimizes the work of final assembly
Skill, while it also avoid the possibility of interface gas leakage, it is not required that be additionally carried out machining, save manufacturing procedure and processing
Cost;There are two completely identical in structure guide rods 41 and 42 in valve body, diaphragm seal pad 51 is arranged respectively at the top of guide rod 41 and 42
With diaphragm seal pad 52, sealing valve port 111 and valve port 112 are respectively used to;Silicagel pad 101 is arranged at the bottom of guide rod 41, for sealing
Silicagel pad 102 is arranged at valve port 121 and 131, the bottom of guide rod 42, for sealing valve port 122 and 132, diaphragm seal pad 51 and diaphragm
The structure material of sealing gasket 52 is identical, and silicagel pad 101 is identical with the structure material of silicagel pad 102.
When oxygenerator works, when the identical electromagnetic priority valve 71 and 72 of structure material is not powered, guide rod 41 and lead
Bar 42 is respectively under the upward thrust of spring 91 and spring 92, and A mouthfuls and B mouthfuls communicate with P mouthfuls respectively, obstructed with R mouthfuls,
Compressed air is from P mouthfuls of entrance, respectively through A mouthfuls and B mouthfuls, into molecular sieve adsorption nitrogen oxygen (A mouthfuls and B mouthfuls with molecular sieve phase
Even), but during molecular sieve adsorption nitrogen saturation, no longer absorption nitrogen, oxygen processed can not just be carried out, for lasting oxygen processed, general one
Molecular sieve adsorption nitrogen, another molecular sieve parsing nitrogen when waiting the molecular sieve saturation of absorption nitrogen, changes another parsed nitrogen
The molecular sieve adsorption nitrogen of gas, the molecular sieve of absorption nitrogen saturation carries out parsing nitrogen, and oxygen so processed can continue to carry out.
During 71 energization 72 no power of pilot valve of pilot valve, P mouthfuls of connection compressed airs are acted in silicagel pad 101, first air guide
Body enters the top of guide rod 41, acts on diaphragm seal pad 51, and the power that pilot gas is acted on diaphragm seal pad 51 is F1,
The power that compressed air is acted in silicagel pad 101 is F2, spring force is F ', works as F1More than F2During with F ' summation, guide rod 41 is downward
Motion, mouth 111 sealed by diaphragm sealing gasket 51, and mouth 121 is opened, and mouth 131 is sealed by silicagel pad 101, at this moment R mouthfuls with A mouthfuls of phases
Logical, P mouthfuls turn off with A mouthfuls, and A mouthfuls connect molecular sieve, and the nitrogen on molecular sieve is parsed, and nitrogen is discharged to air from A mouthfuls into R mouthfuls
Or in nitrogen pot;Pilot valve 72 is not powered on, and P mouthfuls are passed through compressed air, and P mouthfuls communicate with B mouthfuls, and B mouthfuls connect molecular sieve, and compressed air is entered
Enter molecular sieve, nitrogen is adsorbed over a molecular sieve, be adsorbed in the oxygen of nitrogen deposit oxygen tank.
During 72 energization 71 no power of pilot valve of pilot valve, pilot gas is acted on diaphragm seal pad 52, works as F1More than F2With
During F ' summation, guide rod 42 is moved downward, and mouth 112 is sealed by diaphragm sealing gasket 52, and mouth 122 is opened, and mouth 132 is by silicagel pad
102 seal, and at this moment R mouthfuls communicate with B mouthfuls, and P mouthfuls turn off with B mouthfuls, and B mouthfuls connect molecular sieve, the nitrogen on molecular sieve are parsed, nitrogen
Gas is from B mouthfuls are discharged to air or nitrogen pot into R mouthfuls, the no power of pilot valve 71, and P mouthfuls lead to A mouthfuls, oxygen processed;
Four interfaces in the present embodiment on electromagnetic valve body are integral by injection with valve body, not only avoid interface
The possibility of gas leakage, and machining need not be additionally carried out, save manufacturing procedure and processing cost;Valve body is using injection work
Skill is molded, and interchangeability is high, and cost is low, and valve body is installed and uses stacked structure, is positioned up and down reliably, easy to assembly.
Embodiment two
Magnetic valve as described above, the magnetic valve of the present embodiment is with the magnetic valve difference of embodiment one:This reality
The guide rod up and down motion stroke for applying the magnetic valve of example is short.The stroke up and down of guide rod 41 is bigger in Fig. 3, when mouth 131 is opened, mouth 131
Port between guide rod 41 is bigger, bigger by the compressed air require of this mouthful, but the corresponding molecular sieve of Miniature oxygenerator
Small, the nitrogen for adsorbing air is also limited, and substantial amounts of compressed air is not utilized and slatterned, by calculating small-sized system
Actual compression air capacity required for oxygen machine and experiment determine guide rod 41 and guide rod stroke L about 42, and specific calculating process is:
According to theoretical oxygen-producing amount VOxygen is managedCalculate theoretical total volume of air VAir is managed:
VOxygen is managed=VAir is managed× 21%
According to theoretical air cumulative volume VAir is managedActual air cumulative volume V is calculated with oxygen generation efficiency ηAir is real:
VAir is real=η * VAir is managed
According to VAir is realAnd experiment, the volume of gas find in the corresponding time, passed through under corresponding pressure is VAir is realWhen
Ventilate sectional area S1Value, then according to S1And VAir is realStroke L above and below guide rod at calculating:
L=VAir is real/S1
Limit the boss 2 of silica gel pad position in the height of outlet cavity 1 in Fig. 4, increase Fig. 4 in outlet chamber body by reducing
Height, reduce Fig. 5 in air inlet cavity 1 outer limit silica gel pad position boss 2 height, reduce Fig. 6 in simultaneously limitation
At least one of the height of boss 2 of guide rod 1 of two silica gel pad positions mode reduces stroke L above and below guide rod, can also
Stroke L above and below guide rod is reduced using the thickness of increase silicagel pad, Miniature oxygenerator is determined after the elasticity for finally considering silicagel pad
Stroke L is 0.5---1.5 millimeters above and below guide rod.Stroke above and below guide rod can certainly be increased by the way of opposite, with suitable
The need for answering large oxygen-making machine.
Stroke is short above and below guide rod, and compressed air is just small by the flow of mouth 131 and mouth 132 in Fig. 3, in such compressed air
Nitrogen can fully be adsorbed without wasting, guide rod switching time is also few, and oxygen generation efficiency is high;The stroke up and down of guide rod is short, film
The deformation of piece sealing gasket is small, service life extension, saves cost.
Embodiment three
As shown in fig. 7, the guide rod of another magnetic valve provided for the present embodiment and diaphragm seal pad and silica gel thereon
Profile is padded, the magnetic valve of the present embodiment is with the magnetic valve difference of embodiment two:The magnetic valve of the present embodiment is led
The absolute value of the difference of the projected area of diaphragm seal pad 51 and silicagel pad 101 in the horizontal plane on bar 41 is big.Pilot valve enters
Atmospheric pressure is p1, it acts on the top of guide rod 41, and the compressed air pressure of P mouthfuls of entrance of compressed air interface is p2, act on and lead
The lower section of bar 41, projected area of the diaphragm seal pad 51 on horizontal plane xy is A1, the perspective plane on the horizontal plane xy of silicagel pad 101
Product is A2, the spring thrust upward to guide rod 41 is F ', then the pilot gas thrust downward to diaphragm seal pad 51 is F1=
p1*A1, the compressed air thrust upward to silicagel pad 101 is F2=p2*A2, in F1>F2During+F ', guide rod 41 overcome spring force and
The upward thrust of compressed air is moved downward, if in A2In the case of constant or reduction, increase A1Area, promote guide rod 41
The pilot gas pressure p moved downward1Can accordingly it reduce.The radius of diaphragm seal pad 51 is 12.5 millimeters, silicagel pad 101
When radius is 6 millimeters, the admission pressure p of pilot valve1=0.02MP, and the admission pressure of the pilot valve of the existing magnetic valve of in the market
For p1=0.1MP, the difference A of the projected area of increase diaphragm seal pad 51 and silicagel pad 101 on horizontal plane xy1-A2, promotion leads
The admission pressure p for the pilot valve that bar is moved downward1Will accordingly it reduce, so, pilot valve can be realized with less admission pressure
The up and down motion of guide rod.
Example IV
Magnetic valve as described above, the magnetic valve of the present embodiment is with the magnetic valve difference of embodiment three:This reality
Applying the magnetic valve of example has three electromagnetic priority valves, and three guide rods, three molecular sieves are corresponding to connect when one electromagnetic priority valve is powered
The molecular sieve parsing nitrogen connect, during other two electromagnetic priority valve no powers, other two molecular sieves of correspondence connection are inhaled
Attached nitrogen, oxygen processed;Conversely, when two cold electromagnetic priority valves are powered, the molecular sieve of two absorption nitrogens is used to parse nitrogen
Gas, one energization electromagnetic priority valve no power when, correspondence connection molecular sieve parsing nitrogen, add an electromagnetic pilot
Valve, a guide rod and a molecular sieve, oxygen generation efficiency are improved.
Embodiment five
Magnetic valve as described above, the magnetic valve of the present embodiment and the magnetic valve difference of example IV are:This reality
Applying the magnetic valve of example has four electromagnetic priority valves, and four guide rods, four molecular sieves are corresponding to connect when two electromagnetic priority valves are powered
The two molecular sieves parsing nitrogen connect, other two electromagnetic priority valve no powers, two molecular sieve adsorption nitrogen of correspondence connection
Oxygen processed;Conversely, the two electromagnetic priority valves power-off being powered, two molecular sieves of the parsing nitrogen of correspondence connection are used for adsorption of nitrogen
Gas, two electromagnetic priority valves of power-off are powered, and two molecular sieves of corresponding absorption nitrogen are used to parse nitrogen, add
One magnetic valve, guide rod, a molecular sieve, oxygen generation efficiency are further improved, and oxygen flow processed is balanced.
Embodiment six
As shown in figure 8, the structure chart of the another magnetic valve for the application, the magnetic valve of the present embodiment and the electricity of embodiment three
Magnet valve difference is that guide's valve arrangement is different from, and pilot valve directly uses coil, and guide rod 41 and 42 is iron guide rod, phase
When there is spring 91 and 92 above iron core, guide rod, during the coil electricity of two pilot valves, upward electromagnetic force, electromagnetic force are produced
Overcome the motion upwards of spring gravitational attraction guide rod 41 and 42, realize A mouthfuls and B mouthfuls of connections respectively with R mouthfuls, conversely, coil no power,
Guide rod is moved downward under spring force, realizes A mouthfuls and B mouthfuls of connections respectively with P mouthfuls, and the pilot valve is simple in construction, no
Need pilot gas just to realize the control to guide rod, cost is low, easily realize.
Certain pilot valve can also be mechanical two-position four-way valve.
Magnetic valve overall dimensions as described above can make scaling up or reduce, to adapt to the need of different oxygenerators
Will, it can be used for producing nitrogen in addition.
Presently preferred embodiments of the present invention is the foregoing is only, is merely illustrative for the purpose of the present invention, and it is non-limiting
's.Those skilled in the art understands, many changes can be carried out to it in the spirit and scope that the claims in the present invention are limited,
Modification, in addition it is equivalent, but fall within protection scope of the present invention.
Claims (10)
1. a kind of magnetic valve, it includes pilot valve, valve body and the guide rod in the valve body, it is characterised in that the valve body
Including air inlet cavity and outlet cavity, it is provided with the air inlet cavity on two contour inlet chamber boss, the outlet cavity
Two contour outlet chamber boss are provided with, when the air inlet cavity and the outlet cavity are assembled together, reduce the air inlet
The distance between cavity boss upper surface and the outlet cavity boss lower surface can shorten stroke above and below the guide rod, improve
Oxygen generation efficiency;
The pilot valve is placed in above the valve body.
2. a kind of magnetic valve according to claim 1, it is characterised in that reduce the air inlet cavity boss upper surface and institute
Stating the distance between outlet cavity boss lower surface can be limited by reducing the outlet housing depth, reducing on the guide rod
In boss height, the increase outlet cavity boss height and the increase air inlet cavity boss height of two silica gel pad positions
Any mode realize.
3. a kind of magnetic valve according to claim 1, it is characterised in that increase silica gel mat thickness can also shorten described lead
Stroke above and below bar.
4. a kind of magnetic valve according to claim 1 or 2 or 3, it is characterised in that increase diaphragm seal pad is in the horizontal plane
Projected area and/or reduce silicagel pad projected area in the horizontal plane and can reduce the admission pressure of the pilot valve.
5. a kind of magnetic valve according to claim 4, it is characterised in that be provided with two and molecule on the outlet cavity
The connected molecular sieve interface of sieve, described two molecular sieve interfaces are integrated with the outlet cavity by injection.
6. a kind of magnetic valve according to claim 5, it is characterised in that be provided with compressed air on the air inlet cavity and connect
Mouthful, the compressed air interface is integrated with the air inlet cavity by injection.
7. a kind of magnetic valve according to claim 6, it is characterised in that the valve body also includes guide's cavity, the elder generation
Denitrogen interface is provided with guide cavity body, the denitrogen interface is integrated with guide's cavity by injection.
8. a kind of magnetic valve according to claim 7, it is characterised in that the air inlet cavity, the outlet cavity and institute
Guide's cavity is stated to be stacked from bottom to top successively.
9. a kind of magnetic valve according to claim 4, it is characterised in that the admission pressure of pilot valve is 0.02MP.
10. a kind of magnetic valve according to claim 2, it is characterised in that stroke is 0.5-1.5 millis above and below the guide rod
Rice.
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CN111255924A (en) * | 2020-03-13 | 2020-06-09 | 柯尔(苏州)医疗科技有限公司 | Pneumatic combination valve for prolonging service life of molecular sieve oxygen generation system |
CN114263763A (en) * | 2021-12-28 | 2022-04-01 | 合肥康居人智能科技有限公司 | Self-sealing two-position four-way diaphragm valve |
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