CN206754552U - A kind of pilot valve valve body structure and guide type electromagnetic pneumatic operated valve - Google Patents
A kind of pilot valve valve body structure and guide type electromagnetic pneumatic operated valve Download PDFInfo
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- CN206754552U CN206754552U CN201720523171.1U CN201720523171U CN206754552U CN 206754552 U CN206754552 U CN 206754552U CN 201720523171 U CN201720523171 U CN 201720523171U CN 206754552 U CN206754552 U CN 206754552U
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- valve core
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Abstract
The utility model belongs to control valve field, and in particular to a kind of pilot valve valve body structure and guide type electromagnetic pneumatic operated valve.Guide valve core installation cavity, air inlet, exhaust outlet, control chamber and pilot valve core assembly are provided with the pilot valve body, the valve body is using single action sealing two-bit triplet dry type unloading-structure, when pilot valve opens and closes, reduce influence of the medium power to guide valve core, the frictional force that guide valve core is subject to is greatly reduced, is advantageous to the fast-response of pilot valve.The utility model also proposes a kind of guide type electromagnetic pneumatic operated valve for including above-mentioned pilot valve valve body structure, and it also includes electromagnetic actuator device and main valve, and the guide type electromagnetic pneumatic operated valve has response fast, disclosure satisfy that the requirement of high pressure, big flow.The utility model is mainly used in the occasions that flow is larger, pressure is higher such as the in-orbit execution system of liquid-propellant rocket engine, satellite, ground system test and automation fluid piping system, has the advantages of response quickly.
Description
Technical field
The utility model belongs to control valve field, and in particular to a kind of pilot valve valve body structure and guide type electromagnetic pneumatic operated valve.
Background technology
Guide type electromagnetic pneumatic operated valve is typically made up of electromagnetic actuator device, pilot valve and main valve, wherein electromagnetic actuator device
What design directly influenced guide type electromagnetic pneumatic operated valve is opened or closed speed.
Guide type electromagnetic pneumatic operated valve is mainly used in controlling the startup and closing of engine, and general-utility car is due to fuel pressure
It is small, flow is little, therefore less demanding to the response speed of guide type electromagnetic pneumatic operated valve.
The propellant flow rate of precise tracking in AEROSPACE APPLICATION field is big and pressure is high, it is desirable to guide type electromagnetic pneumatic operated valve
Fast-response is required under the conditions of big flow, its response time is not more than 3ms.Due to the particular/special requirement of product, conventional solenoid valve is not
Fast requirement completely can be responded.Therefore need to develop a kind of guide type electromagnetic pneumatic operated valve that can meet to require.
The content of the invention
To solve the above problems, the utility model proposes one kind to use two-bit triplet dry type unloading-structure, fast ring can be realized
A kind of pilot valve valve body structure answered；The utility model also proposes that a kind of guide type electromagnetic comprising above-mentioned pilot valve valve body structure is pneumatic
Valve, the guide type electromagnetic pneumatic operated valve, which has, responds the characteristics of fast, disclosure satisfy that the requirement under high pressure, big flow operating mode.
The technical scheme that the utility model solves the above problems is：A kind of pilot valve valve body structure, including pilot valve body, its is special
Part is：
Guide valve core installation cavity, air inlet, exhaust outlet and control chamber are provided with the pilot valve body；
Pilot valve core assembly is provided with the guide valve core installation cavity, the pilot valve core assembly includes guide valve core and reset
Spring；
The guide valve core installation cavity is divided into cavity top, cavity middle and upper part, cavity middle and lower part and cavity from top to bottom
Bottom, is provided with the first cavity mating surface between the cavity top and cavity middle and upper part, in the cavity middle and upper part and cavity under
The first pilot valve seat is provided between portion, the second pilot valve seat is provided between the cavity middle and lower part and cavity bottom,
The guide valve core is divided into guide valve core A sections, guide valve core B sections, guide valve core C sections and guide valve core D sections, the guide valve core A sections
In cavity top and cavity middle and upper part, the guide valve core B sections are located in cavity middle and upper part and cavity middle and lower part, guide valve core C
In cavity middle and lower part, guide valve core D sections are located in cavity middle and lower part and cavity bottom section；The back-moving spring is arranged on cavity
In bottom and between guide valve core D sections and pilot valve body；
The diameter of the guide valve core A sections is all equal with the internal diameter of the first pilot valve seat and the second pilot valve seat；
The side of the guide valve core A sections is the first control chamber binding face, the first control chamber binding face and the first cavity
Mating surface coordinates, and primary sealing area, shape between guide valve core C sections and guide valve core D sections are formed between guide valve core B sections and guide valve core C sections
Into secondary sealing area；
The air inlet connects with cavity middle and upper part, and exhaust outlet connects with cavity bottom, cavity middle and lower part and control chamber phase
Connection.
Further, above-mentioned pilot valve core assembly includes potted component, and the potted component is arranged in cavity top, close
Envelope element cooperatively forms sealing with guide valve core A sections.
Further, above-mentioned potted component is radial sealing elements.
Further, above-mentioned potted component uses O-shaped rubber seal or spring energy-storage sealing ring.
The technical scheme of guide type electromagnetic pneumatic operated valve provided by the utility model is：A kind of guide type electromagnetic pneumatic operated valve, bag
Electromagnetic actuator device and main valve are included, it is characterized in that：
Also include above-mentioned pilot valve valve body structure；
The main valve includes main valve body, and the main valve body is connected with pilot valve body 1；
The electromagnetic actuator device is used for the open and close for controlling pilot valve；
The pilot valve is used for the open and close of control bound.
The utility model compared with prior art the advantages of：
1st, the valve element to pilot valve and valve seat optimize design, using two-bit triplet dry type unloading-structure, are opened in pilot valve
During with closing, reducing influence of the medium power to guide valve core, being greatly reduced the frictional force that guide valve core is subject to, be advantageous to pilot valve
Fast-response.
2nd, on guide valve core only with together sealing realize electromagnet separating dry space from moist space, make electromagnetic actuator device with control medium every
From the soft magnetic materials in electromagnetic actuator device can not consider media compatibility sex chromosome mosaicism.
3rd, the utility model is in addition to it can be applied to liquid-propellant rocket engine, in the in-orbit execution system of satellite, ground experiment system
System, automation fluid piping system related valve in can be applicable, can effectively improve the response of valve and can guarantee that compared with
Big negotiability.
Brief description of the drawings
Fig. 1 is the axial section of the utility model guide type electromagnetic pneumatic operated valve；
Fig. 2 is the off-load schematic diagram under the pilot valve closed mode of the utility model guide type electromagnetic pneumatic operated valve；
Fig. 3 is the off-load schematic diagram under the pilot valve opening of the utility model guide type electromagnetic pneumatic operated valve.
Wherein：1- pilot valve bodies；101- main valve bodies；201- housings；202- magnet coils；203- permanent magnets；204- armature；
205- magnetism isolating spacers；206- push rods；3- guide valve cores；31- guide valve core A sections；32- guide valve core B sections；33- guide valve core C sections；34- guide valve cores
D sections；311- the first control chamber binding faces；321- primary sealing areas；331- secondary sealing areas；4- back-moving springs；5- potted components；
6- main valve plugs；7- second back-moving springs；8- potted components B；9- guide valve core installation cavitys；91- cavitys top；The cavitys of 912- first are matched somebody with somebody
Conjunction face；The pilot valve seats of 913- first；The pilot valve seats of 914- second；92- cavitys middle and upper part；93- cavitys middle and lower part；Under 94- cavitys
Portion；10- main valve plug installation cavitys；103- main valves；106- control chambers；12- air inlets；13- exhaust outlets；14- medium inlets；
15- media outlets；17- potted components C.
d1--- the diameter of guide valve core A sections；
d2--- the internal diameter of the first pilot valve seat；
d3--- the internal diameter of the second pilot valve seat；
F --- medium power.
Embodiment
The embodiment provided below in conjunction with the accompanying drawings is described in detail to the utility model：
Referring to Fig. 1, a kind of pilot valve valve body structure, including pilot valve body 1, pilot valve body 1 is interior to be provided with guide valve core installation cavity 9, air inlet
Mouth 12, exhaust outlet 13 and control chamber 106.
Pilot valve core assembly is provided with guide valve core installation cavity 9, pilot valve core assembly includes guide valve core 3 and first and resets bullet
Spring 4.
Guide valve core installation cavity 9 is divided into cavity top 91, cavity middle and upper part 92, cavity middle and lower part 93 and chamber from top to bottom
Body bottom 94, the first cavity mating surface 912, cavity middle and upper part 92 and cavity are provided between cavity top 91 and cavity middle and upper part 92
The first pilot valve seat 913 is provided between middle and lower part 93, the second pilot valve seat is provided between cavity middle and lower part 93 and cavity bottom 94
914。
Guide valve core 3 divides for guide valve core A sections 31, guide valve core B sections 32, guide valve core C sections 33 and guide valve core D sections 34, guide valve core A sections
31 in cavity top 91 and cavity middle and upper part 92, and guide valve core B sections 32 are located in cavity middle and upper part 92 and cavity middle and lower part 93,
Guide valve core C sections 33 are located in cavity middle and lower part 93, and guide valve core D sections 34 are located in cavity middle and lower part 93 and cavity bottom 94；First
Back-moving spring 4 is arranged in cavity bottom 94 and between guide valve core D sections 34 and pilot valve body 1.
The diameter of guide valve core A sections 31 is all equal with the internal diameter of the first pilot valve seat 913 and the second pilot valve seat 914.Pilot valve
The side of core A sections 31 is the first control chamber binding face 311, and the first control chamber binding face 311 is matched somebody with somebody with the first cavity mating surface 912
Close, primary sealing area 321 is formed between guide valve core B sections 32 and guide valve core C sections 33, between guide valve core C sections 33 and guide valve core D sections 34
Form secondary sealing area 331.
Air inlet 12 connects with cavity middle and upper part 92, and exhaust outlet 13 connects with cavity bottom 94, cavity middle and lower part 93 and control
Chamber 106 processed is connected.
Pilot valve core assembly also includes potted component 5, and potted component 5 is arranged in cavity top 91, and potted component 5 is with leading
Valve element A sections 31 cooperatively form sealing.Potted component 5 is radial sealing elements, and O-shaped rubber seal or spring energy-storage can be used close
Seal.
Referring to Fig. 2 and Fig. 3, to realize fast-response, design is optimized to guide valve core 3 and guide valve core installation cavity 9.Stretching
Enter setting potted component 5 in the guide valve core A sections 31 in cavity top 91, prevent control gas from entering cavity top 91, so as to avoid
Control pressure power is born in the end face of guide valve core A sections 31, meanwhile, utilize the diameter d of guide valve core A sections 311With the first pilot valve seat 913
Internal diameter d2, the second pilot valve seat 914 internal diameter d3It is equal, form unloading-structure.Under pilot valve inlet end sealing state, using leading
The diameter d of valve element A sections 311With the internal diameter d of the first pilot valve seat 9132Equal composition unloading-structure, medium power can be reduced and brought
Load force, reduce influence of the medium power to the opening movement of guide valve core 3, realize and open fast-response.Shape is sealed in pilot valve exhaust end
Under state, the diameter d of guide valve core A sections 31 is utilized1With the internal diameter d of the second pilot valve seat 9143Equal composition unloading-structure, reduce and close
Initial dielectric loading power is moved, to reduce influence of the medium power to the closedown campaign of guide valve core 3, realizes and closes quick response.
Referring to Fig. 1, a kind of guide type electromagnetic pneumatic operated valve, including pilot valve body 1, main valve body 101, pilot valve unit, main valve unit
And Solenoid drive apparatus.Pilot valve unit includes pilot valve core assembly, and main valve unit includes valve core of main valve component.In valve body 1
Provided with guide valve core installation cavity 9, main valve plug installation cavity 10, air inlet 12, exhaust outlet 13, medium inlet 14 and media outlet 15.
Pilot valve core assembly is arranged in guide valve core installation cavity 9, and pilot valve core assembly includes guide valve core 3, the and of back-moving spring 4
Radial sealing elements 5；Valve core of main valve component includes main valve plug 6.
Guide valve core installation cavity 9 is divided into cavity top 91, cavity middle and upper part 92, cavity middle and lower part 93 and chamber from top to bottom
Body bottom 94, the first cavity mating surface 912, cavity middle and upper part 92 and cavity are provided between cavity top 91 and cavity middle and upper part 92
The first pilot valve seat 913 is provided between middle and lower part 93, the second pilot valve seat is provided between cavity middle and lower part 93 and cavity bottom 94
914。
Main valve plug installation cavity 10 includes control chamber 106；Main valve 103 is provided with media outlet 15.
Guide valve core 3 divides for guide valve core A sections 31, guide valve core B sections 32, guide valve core C sections 33 and guide valve core D sections 34, guide valve core A sections
31 in cavity top 91 and cavity middle and upper part 92, and guide valve core B sections 32 are located in cavity middle and upper part 92 and cavity middle and lower part 93,
Guide valve core C sections 33 are located in cavity middle and lower part 93, and guide valve core D sections 34 are located in cavity middle and lower part 93 and cavity bottom 94；Reset
Spring 4 is arranged in cavity bottom 94 and between guide valve core D sections 34 and valve body 1.
The side of guide valve core A sections 31 is the first control chamber binding face 311, the first control chamber binding face 311 and first
Cavity mating surface 912 coordinates, and primary sealing area 321, the He of guide valve core C sections 33 are formed between guide valve core B sections 32 and guide valve core C sections 33
Secondary sealing area 331 is formed between guide valve core D sections 34.
Air inlet 12 connects with cavity middle and upper part 92, and exhaust outlet 13 connects with cavity bottom 94, cavity middle and lower part 93 and master
Valve element installation cavity 10 connects.
Electromagnetic actuator device includes housing 201, magnet coil 202, permanent magnet 203, armature 204, magnetism isolating spacer 205 and push rod
206；Magnet coil 202, permanent magnet 203 and armature 204 are arranged in housing 201, and permanent magnet 203 is annular, is arranged on housing
Middle part in 201, concentric with housing 201, permanent magnet 203 produces magnetic field, the upper magnetic field in the top and the bottom of armature 204 respectively
It is in opposite direction with lower magnetic field；Magnet coil 202 and housing 201 are concentric, and magnet coil 202 is divided to for two sections, two sections of magnet coils
202 are separately positioned on the top and bottom of permanent magnet 203；After the energization of magnet coil 202, magnetic direction caused by magnet coil
With permanent magnet 203 caused by upper magnetic direction on the contrary, with permanent magnet 203 caused by lower magnetic direction it is identical.
Armature 204 is axially arranged along housing 201, and concentric with housing 201, and passes through permanent magnet 203 and magnet coil
202, the medial surface of the lateral surface and permanent magnet 203 and magnet coil 202 of armature 204 has gap, and armature 204 can be in housing
201 inner shafts are to moving up and down；When magnet coil 202 is not powered on, permanent magnet 203 is between the upper and lower end face of armature 204.
In order to realize fast-response, electromagnetic actuator device is optimized design.By setting magnetism isolating spacer 205 to adjust armature
204 when magnet coil 202 is not powered on, the distance and armature 204 of the upper surface and the upper surface inside housing 201 of armature 204
The distance of lower surface and the lower surface inside housing 201 be equal or approximately equal, initial permanent magnetism self-locking is realized by the design
Power is cancelled out each other, and overcomes influence of the self-lock force of permanent magnet 203 to load.
Wherein potted component 5, potted component B8 and potted component C17 can use O-shaped rubber seal or spring energy-storage close
Seal.Housing 201 uses soft magnetic materials with armature 204.
The operation principle of guide type electromagnetic pneumatic operated valve provided by the utility model is：
In original state, permanent magnet 203 forms magnetic circuit up and down in housing 201, when armature 204 is relative to housing 201
When working clearance of the inner shaft to upper and lower end face is equal, self-lock force caused by the upper and lower side of permanent magnet 203 is cancelled out each other, to pilot valve
Sealing state does not have an impact；After magnet coil 202 is powered, caused magnetic direction and magnetic circuit magnetic field side on permanent magnet 203
To on the contrary, identical with 203 times magnetic circuit magnetic directions of permanent magnet so that upper magnetic circuit weakens caused by permanent magnet 203, and lower magnetic circuit increases
By force, the Double End electromagnetic attraction of armature 204 breaks balance, so as to produce electromagnetic attraction axially downwardly, is led by the driving of push rod 206
Valve element 3 moves downward, and when guide valve core 3 moves towards exhaust outlet 13, control gas enters guide valve core installation cavity 9 from air inlet 12,
After guide valve core 3 is moved to the stroke upper limit, the pilot valve seat 914 of secondary sealing area 331 and second forms sealing and coordinated, and prevents control gas
Flowed out from exhaust outlet 13, after control gas establishes pressure in control chamber 106, driving main valve plug 6 moves towards media outlet 15, is situated between
Matter outlet 15 is opened, and propellant medium flows out media outlet 15 from medium inlet 14, and engine is started working；Electromagnetic actuator device
After power-off, the magnetic energy that the magnetic potential of magnet coil 202 is brought weakens rapidly, and finally, back-moving spring 4 overcomes the permanent magnetism self-locking of fully open position
Power, control gas are discharged from exhaust outlet 13, and release in the control chamber 106 of main valve plug installation cavity 10, second back-moving spring 7 resets rapidly
Main valve plug 6 is promoted to be moved towards guide valve core 3, main valve plug 6 is formed with main valve 103 and sealed, and prevents propellant medium from medium
The outflow of outlet 15, after guide valve core 3 is moved to the stroke upper limit, the pilot valve seat 913 of primary sealing area 321 and first forms sealing, closes
Control chamber 106 is closed, cuts off the supply of propellant medium, engine cutoff.
Guide valve core A sections 31 realize that Solenoid drive apparatus is isolated with control medium using radial direction seal ring, magnet coil
The soft magnetic materials that drive device uses can not consider media compatibility sex chromosome mosaicism.
Main valve plug 6 uses potted component B8 and potted component C17 two seals, and potted component B8 prevents that controlling gas to enter is situated between
In matter fuel, potted component C prevents propellant medium from entering in guide valve core installation cavity 9.
Primary sealing area 321 and secondary sealing area 331 are adopted with the first pilot valve seat 913 and the second pilot valve seat 914 respectively
Sealed with bacterium shape, can also use conical surface seal herein；Main valve plug 6 uses conical surface seal with main valve 103, can also use herein
Bacterium shape seals.
The utility model in addition to it can be applied to liquid-propellant rocket engine, the in-orbit execution system of satellite, ground system test,
Automating can be applicable in the related valve of fluid piping system, can effectively improve the response of valve and can guarantee that larger
Negotiability.
Those skilled in the art can be defined according to different design requirement and design parameter without departing from claim
Structure in the case of carry out it is various supplement, improve and change, therefore, the utility model is extensive.
Claims (5)
1. a kind of pilot valve valve body structure, including pilot valve body (1), it is characterised in that：
Guide valve core installation cavity (9), air inlet (12), exhaust outlet (13) and control chamber (106) are provided with the pilot valve body (1)；
Pilot valve core assembly is provided with the guide valve core installation cavity (9), the pilot valve core assembly is including guide valve core (3) and again
Position spring (4)；
The guide valve core installation cavity (9) is divided into cavity top (91), cavity middle and upper part (92), cavity middle and lower part from top to bottom
(93) the first cavity mating surface and cavity bottom (94), is provided between the cavity top (91) and cavity middle and upper part (92)
(912) the first pilot valve seat (913), is provided between the cavity middle and upper part (92) and cavity middle and lower part (93), in the cavity
The second pilot valve seat (914) is provided between bottom (93) and cavity bottom (94),
The guide valve core (3) is divided into guide valve core A sections (31), guide valve core B sections (32), guide valve core C sections (33) and guide valve core D sections
(34), the guide valve core A sections (31) are located in cavity top (91) and cavity middle and upper part (92), guide valve core B sections (32) position
In cavity middle and upper part (92) and cavity middle and lower part (93), guide valve core C sections (33) are located in cavity middle and lower part (93), guide valve core D
Section (34) is located in cavity middle and lower part (93) and cavity bottom (94)；The back-moving spring (4) is arranged in cavity bottom (94)
And between guide valve core D sections (34) and pilot valve body (1),
The diameter of the guide valve core A sections (31) and the first pilot valve seat (913) and internal diameter all phases of the second pilot valve seat (914)
Deng；
The side of the guide valve core A sections (31) is the first control chamber binding face (311), the first control chamber binding face (311)
Coordinate with the first cavity mating surface (912), primary sealing area is formed between guide valve core B sections (32) and guide valve core C sections (33)
(321) secondary sealing area (331), is formed between guide valve core C sections (33) and guide valve core D sections (34)；
The air inlet (12) connects with cavity middle and upper part (92), and exhaust outlet (13) connects with cavity bottom (94), in cavity under
Portion (93) is connected with control chamber (106).
A kind of 2. pilot valve valve body structure according to claim 1, it is characterised in that：The pilot valve core assembly includes sealing
Element (5), the potted component (5) are arranged in cavity top (91), and potted component (5) coordinates shape with guide valve core A sections (31)
Into sealing.
A kind of 3. pilot valve valve body structure according to claim 2, it is characterised in that：The potted component (5) is radially close
Seal element.
A kind of 4. pilot valve valve body structure according to claim 3, it is characterised in that：The potted component (5) uses O-shaped rubber
Glue sealing ring or spring energy-storage sealing ring.
5. a kind of guide type electromagnetic pneumatic operated valve, including electromagnetic actuator device and main valve, it is characterised in that：
Also include a kind of pilot valve valve body structure described in claim any one of 1-4；
The main valve includes main valve body (101), and the main valve body (101) is connected with pilot valve body (1)；
The electromagnetic actuator device is used for the unlatching for controlling pilot valve；Pilot valve is used for the open and close of control bound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720523171.1U CN206754552U (en) | 2017-05-11 | 2017-05-11 | A kind of pilot valve valve body structure and guide type electromagnetic pneumatic operated valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720523171.1U CN206754552U (en) | 2017-05-11 | 2017-05-11 | A kind of pilot valve valve body structure and guide type electromagnetic pneumatic operated valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754552U true CN206754552U (en) | 2017-12-15 |
Family
ID=60616839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720523171.1U Withdrawn - After Issue CN206754552U (en) | 2017-05-11 | 2017-05-11 | A kind of pilot valve valve body structure and guide type electromagnetic pneumatic operated valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206754552U (en) |
-
2017
- 2017-05-11 CN CN201720523171.1U patent/CN206754552U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20230321 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20230321 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |