CN106168303B - A kind of micrometeor high-precision lightweight miniaturization pressure maintaining valve - Google Patents
A kind of micrometeor high-precision lightweight miniaturization pressure maintaining valve Download PDFInfo
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- CN106168303B CN106168303B CN201610742931.8A CN201610742931A CN106168303B CN 106168303 B CN106168303 B CN 106168303B CN 201610742931 A CN201610742931 A CN 201610742931A CN 106168303 B CN106168303 B CN 106168303B
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- valve
- valve body
- spool
- valve seat
- seat
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a kind of micrometeor high-precision lightweights to minimize pressure maintaining valve, including valve body, valve seat, diaphragm unit, spring base, spring, spool, pressing device, compression ring, main spring seat, adjusting ball；Valve body and valve seat are separate structure, reduce valve body, valve seat processing request, easy processing；Valve seat and spool are soft-hard sealing means；By clearance fit, realize the course of work without self-friction；Valve seat is assembled on valve body as stand-alone assembly, conducive to the cooperation position requirement between valve seat and spool, improves reseting precision；By diaphragm unit come the leakage of sensitive pressure and barrier working media, properties of product are promoted；Spool is the integrated design, and reduces number of parts, is easily assembled and processes；By These characteristics, meets properties of product and save space, realize lightweight miniaturization.
Description
Technical field
The present invention relates to a kind of micrometeor high-precision lightweights to minimize pressure maintaining valve, belongs to space station pressure-reduced and-regulated valve type
Product scope.
Background technique
Space station is mounted on pressure maintaining valve product and is protected in subsystem for space station ring control is raw, for stablizing carrier gas output pressure
Power.In use, pressure maintaining valve upstream gas circuit is opened after pressure maintaining valve, and pressure maintaining valve output pressure is kept to stablize, and is downstream
Work provides stable carrier gas output pressure.The product requirement flow is small, maximum stream flow 0.03mg/s；Precision height (± 3%)；
Light-weight (< 100g)；Working media is hydrogen；Output pressure is continuously adjusted within the scope of 0.1~0.2MPa.
Space station is larger with the general weight of pressure-reduced and-regulated class valve at present, flow it is big and with desired working media compatibility
It is bad, and its reliability of industrial product and precision not can guarantee.
Therefore be directed to the requirement of current spatial station product, need to develop a kind of micrometeor, high-precision, lightweight miniaturization pressure stabilizing
Valve product.
Summary of the invention
The purpose of the invention is to overcome lightweight to minimize and resistance to hydrogen embrittlement technical requirements, a kind of micrometeor high-precision is provided
Lightweight minimizes pressure maintaining valve, and the product integration is high, realisation strong without dynamic friction, technique.
The purpose of the present invention is what is be achieved through the following technical solutions.
A kind of micrometeor high-precision lightweight of the invention minimizes pressure maintaining valve, including valve body (1), valve seat (2), diaphragm unit
(3), spring base (4), spring (5), spool (6), pressing device (7), compression ring (8), main spring seat (9) and adjusting ball (10)；
Diaphragm unit (3) is placed in valve body (1) low pressure chamber, and the upper end of diaphragm unit (3) is fluted；Valve seat (2) end face
Place is provided with hole slot；With valve body (1) for matrix, valve seat (2) fixed placement is in the high pressure chest of valve body (1), in valve body (1) low pressure chamber
Equipped with limiting slot；Spring base (4) is placed in the high pressure chest of valve body (1), is contacted with spring (5) end face；Spool (6) and valve seat
(2) it is gap-matched, for no friction structure；Spool (6) and valve seat (2) contact portion are spherical structure, spool (6) elongate rod
It is placed in the inner passage of valve seat (2), spool (6) is limited by valve seat (2), makes spool (6) along the axis of valve body (1)
To can move up and down；Pressing device (7) and valve body (1) are fixed, to be used to fixed valve base (2) and valve body (1)；Compression ring (8)
It is placed in valve body (1) low pressure chamber, to be positioned to diaphragm unit (3)；Have on main spring seat (9) and diaphragm unit (3)
The groove that matches of groove, form a spherical hollow space between two grooves, adjust ball (10) and be placed on and is formed by spherical shape
In cavity, realize main spring seat (9) along valve body (1) axial alignment by adjusting ball (10)；And then push spool (6) along valve body
(1) axial up and down motion.
The diaphragm unit (3) includes bracket, platen and metallic membrane, and three is integral by electron beam welding, metal
Diaphragm edge is contacted with limiting slot in valve body (1) low pressure chamber.
The spool (6) use integrated design, material is stainless steel, reduce amount of parts, be easy to machine assembly and
Parts machining.
The contact portion when spool (6) and valve seat (2) are gap-matched is spherical structure,
The diaphragm unit (3) is metal, is capable of the leakage of sensitive pressure and barrier working media, promotes product hermeticity
Energy；Valve seat (2) is the assembly of metal and nonmetallic F4, again will be non-by heat pressing process after first processing a blank in processing
Metal F4 is put into corresponding construction, and finally reprocessing molding, i.e., realize the sealing of part by the nonmetallic F4 of hot pressing.
The valve seat (2) is assembled on valve body (1) as stand-alone assembly, is conducive to guarantee between valve seat (2) and spool (6)
Cooperate relative position to require, improves product reseting precision；Valve body (1) requirement on machining accuracy is reduced simultaneously, and technique is realisation strong, mentions
High finished product rate.
The valve seat (2) and spool (6) use soft-hard sealing means, i.e. spool (6) is metal, and valve seat (2) is mutual with it
The part of contact be it is nonmetallic, fully ensured that the leakproofness of structure, realized product high pressure sealing.
The valve seat (2) and spool (6) realize the product course of work without self-friction by clearance fit；Valve seat (2) simultaneously
It is assembled on valve body (1) as stand-alone assembly, is conducive to guarantee that the cooperation relative position between valve seat (2) and spool (6) requires, mentions
High product reseting precision.
The valve body (1) and valve seat (2) use separate structure, reduce the requirement on machining accuracy of valve body, valve seat, and technique is real
Existing property is strong, improves yield rate.
The spring (5) is tapered, spring base (4) and tapered big end face contact；Can fast and stable meet product
Interiors of products space is saved while energy, mitigates product weight, realizes lightweight small form factor requirements.
The advantages of the present invention over the prior art are that:
(1) due to structure composition of the invention, so that having the advantages that integration is high, realisation strong without dynamic friction, technique.
(2) spool of the invention reduces amount of parts, is easy to machine assembly and components by using integrated design
Processing；By using spring, fast and stable saves interiors of products space while meeting properties of product, mitigates product weight, real
Existing lightweight small form factor requirements；
(3) valve seat of the invention and valve body use separate structure, reduce the requirement on machining accuracy of valve body, valve seat, technique
It is realisation strong, improve yield rate；
(4) valve seat of the invention and spool use soft-hard sealing means, have fully ensured that the leakproofness of structure, realize and produce
Product high pressure sealing；By clearance fit, realize the product course of work without self-friction；Valve seat is assembled into valve as stand-alone assembly simultaneously
It on body, is required conducive to the cooperation relative position guaranteed between valve seat and spool, improves product reseting precision；
(5) present invention promotes product hermeticity energy by metallic membrane come the leakage of sensitive pressure and barrier working media.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
As shown in Figure 1, the present invention includes valve body 1, valve seat 2, diaphragm unit 3, spring base 4, spring 5, spool 6, compresses dress
It sets 7, compression ring 8, main spring seat 9, adjust ball 10；
The upper end of diaphragm unit 3 is fluted；There is the groove to match with the groove of diaphragm unit 3 on main spring seat 9；
Valve seat 2 is the assembly of metal and nonmetallic F4, passes through hot pressing again after first processing a valve seat blank in processing
Nonmetallic F4 is put into corresponding construction by technique, and finally reprocessing molding, i.e., realize the close of part by the nonmetallic F4 of hot pressing
Envelope；Metal material is usually titanium alloy, aluminium alloy, stainless steel etc., and nonmetallic materials are usually plastics, rubber etc..
It is matrix with valve body 1,2 fixed placement of valve seat is equipped with limiting slot in the high pressure chest of valve body 1 in 1 low pressure chamber of valve body；
Diaphragm unit 3 is placed in 1 low pressure chamber of valve body, and diaphragm unit includes bracket, platen and metallic membrane, and three passes through
Electron beam welding is integral, and diaphragm edge is contacted with limiting slot in 1 low pressure chamber of valve body；
Spring base 4 is placed in the high pressure chest of valve body 1, with 5 big end face contact of volute spring；
Spool 6 uses integrated design scheme, and material is stainless steel, and spool 6 and 2 contact portion of valve seat are spherical structure,
6 elongate rod of spool is placed in the inner passage of valve seat 2, is limited by valve seat 2 to spool 6, is made spool 6 along valve body 1
It can axially move up and down；
Pressing device 7 is fixed with valve body 1 by electron beam welding, to be used to fixed valve base 2 and valve body 1；
Compression ring 8 is placed in 1 low pressure chamber of valve body, to position to diaphragm unit 3；
The groove of diaphragm unit 3 and the groove of main spring seat 9 match placements, and a spherical sky is formed between two grooves
Chamber, adjusting ball 10, which is placed on, to be formed by spherical hollow space, realizes main spring seat 9 along 1 axial alignment of valve body by adjusting ball 10；
And then spool 6 is pushed to move up and down along the axial direction of valve body 1.
The course of work of the present invention is as follows:
High pressure gas is accessed from inlet, after entering body cavity by runner, work of the spool in kinematic pair and spring
It is axially moved with lower beginning along valve body, to adjust the flow and outlet pressure of product, reaches requirement to low pressure cavity pressure
After establish stable equilibrium, low pressure is supplied to downstream by exit and uses.
Gas inlet pressure range is 0.35~2.0MPa, and outlet gas pressure range is continuously adjustable for 0.1~0.2MPa,
Metered flow is 0.03mg/s.
The present invention is not disclosed technology and belongs to common sense well known to those skilled in the art.
Claims (9)
1. a kind of micrometeor high-precision lightweight minimizes pressure maintaining valve, it is characterised in that: including valve body (1), valve seat (2), diaphragm group
Part (3), spring base (4), spring (5), spool (6), pressing device (7), compression ring (8), main spring seat (9) and adjusting ball
(10)；
Diaphragm unit (3) is placed in valve body (1) low pressure chamber, and the upper end of diaphragm unit (3) is fluted；It opens valve seat (2) endface
There is hole slot；With valve body (1) for matrix, valve seat (2) fixed placement is equipped in valve body (1) low pressure chamber in the high pressure chest of valve body (1)
Limiting slot；Spring base (4) is placed in the high pressure chest of valve body (1), is contacted with spring (5) end face；Spool (6) is adopted with valve seat (2)
With clearance fit, for no friction structure；Spool (6) and valve seat (2) contact portion are spherical structure, and spool (6) elongate rod is placed
In the inner passage of valve seat (2), spool (6) is limited by valve seat (2), makes spool (6) can along the axial direction of valve body (1)
To move up and down；Pressing device (7) and valve body (1) are fixed, to be used to fixed valve base (2) and valve body (1)；Compression ring (8) is placed
In valve body (1) low pressure chamber, to be positioned to diaphragm unit (3)；Have on main spring seat (9) recessed with diaphragm unit (3)
The groove that slot matches forms a spherical hollow space between two grooves, adjusts ball (10) and is placed on and is formed by spherical hollow space
In, realize main spring seat (9) along valve body (1) axial alignment by adjusting ball (10)；And then push spool (6) along valve body (1)
It is axial to move up and down；
The diaphragm unit (3) includes bracket, platen and metallic membrane, and three is integral by electron beam welding, metallic membrane
Edge is contacted with limiting slot in valve body (1) low pressure chamber.
2. a kind of micrometeor high-precision lightweight according to claim 1 minimizes pressure maintaining valve, it is characterised in that: the spool (6)
Using integrated design, material is stainless steel, reduces amount of parts, is easy to machine assembly and parts machining.
3. a kind of micrometeor high-precision lightweight according to claim 1 minimizes pressure maintaining valve, it is characterised in that: the spool (6)
Contact portion when being gap-matched with valve seat (2) is spherical structure.
4. a kind of micrometeor high-precision lightweight according to claim 1 minimizes pressure maintaining valve, it is characterised in that: the diaphragm unit
(3) it is metal, is capable of the leakage of sensitive pressure and barrier working media, promotes product hermeticity energy；Valve seat (2) uses interior hot pressing
Nonmetallic F4.
5. a kind of micrometeor high-precision lightweight according to claim 1 minimizes pressure maintaining valve, it is characterised in that: the valve seat (2)
It is assembled on valve body (1) as stand-alone assembly, is conducive to guarantee that the cooperation relative position between valve seat (2) and spool (6) requires, mentions
High product reseting precision；Valve body (1) requirement on machining accuracy is reduced simultaneously, and technique is realisation strong, improves yield rate.
6. a kind of micrometeor high-precision lightweight according to claim 1 minimizes pressure maintaining valve, it is characterised in that: the valve seat (2)
Soft-hard sealing means are used with spool (6), have fully ensured that the leakproofness of structure, realize product high pressure sealing.
7. a kind of micrometeor high-precision lightweight according to claim 1 minimizes pressure maintaining valve, it is characterised in that: the valve seat (2)
With spool (6) by clearance fit, realize the product course of work without self-friction；Valve seat (2) is assembled into as stand-alone assembly simultaneously
On valve body (1), it is conducive to guarantee that the cooperation relative position between valve seat (2) and spool (6) requires, improves product reseting precision.
8. a kind of micrometeor high-precision lightweight according to claim 1 minimizes pressure maintaining valve, it is characterised in that: the valve body (1)
Separate structure is used with valve seat (2), reduces the requirement on machining accuracy of valve body, valve seat, technique is realisation strong, improves yield rate.
9. a kind of micrometeor high-precision lightweight according to claim 1 minimizes pressure maintaining valve, it is characterised in that: the spring (5)
To be tapered, spring base (4) and tapered big end face contact；Can fast and stable save interiors of products while meet properties of product
Space mitigates product weight, realizes lightweight small form factor requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742931.8A CN106168303B (en) | 2016-08-26 | 2016-08-26 | A kind of micrometeor high-precision lightweight miniaturization pressure maintaining valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742931.8A CN106168303B (en) | 2016-08-26 | 2016-08-26 | A kind of micrometeor high-precision lightweight miniaturization pressure maintaining valve |
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| Publication Number | Publication Date |
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| CN106168303A CN106168303A (en) | 2016-11-30 |
| CN106168303B true CN106168303B (en) | 2019-03-26 |
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| CN201610742931.8A Active CN106168303B (en) | 2016-08-26 | 2016-08-26 | A kind of micrometeor high-precision lightweight miniaturization pressure maintaining valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106678388A (en) * | 2017-02-27 | 2017-05-17 | 曹可星 | Step-by-step direct-acting electromagnetic valve |
| CN111590186B (en) * | 2020-05-29 | 2022-02-22 | 西安西材三川智能制造有限公司 | Welding method for dissimilar metal material membrane component |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2243012Y (en) * | 1995-06-13 | 1996-12-18 | 中国航天工业总公司第十一研究所(京) | High-pressure high-flow-rate helium pressure release valve |
| JPH11304029A (en) * | 1998-04-16 | 1999-11-05 | Aisan Ind Co Ltd | Pressure reducing regulator for compressed natural gas |
| JP4226486B2 (en) * | 2004-02-10 | 2009-02-18 | 株式会社ケーヒン | Gas regulator |
| TWI392988B (en) * | 2007-12-07 | 2013-04-11 | Nissan Tanaka Corp | Pressure regulation valve |
| CN202040388U (en) * | 2011-04-22 | 2011-11-16 | 宁波新佳行自动化工业有限公司 | Improved pressure reducing valve structure |
| CN202852100U (en) * | 2012-09-26 | 2013-04-03 | 苏州赛华仪控股份有限公司 | Constant pressure valve |
| CN104847941B (en) * | 2015-03-11 | 2017-03-15 | 北京控制工程研究所 | A kind of nonmetallic diaphragm pressure reducer of high-barrier |
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| CN106168303A (en) | 2016-11-30 |
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