CN102619996A - Double-diaphragm two-stage reduced pressure oxygen regulating valve - Google Patents
Double-diaphragm two-stage reduced pressure oxygen regulating valve Download PDFInfo
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- CN102619996A CN102619996A CN2012101221869A CN201210122186A CN102619996A CN 102619996 A CN102619996 A CN 102619996A CN 2012101221869 A CN2012101221869 A CN 2012101221869A CN 201210122186 A CN201210122186 A CN 201210122186A CN 102619996 A CN102619996 A CN 102619996A
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Abstract
The invention relates to a double-diaphragm two-stage reduced pressure oxygen regulating valve. The double-diaphragm two-stage reduced pressure oxygen regulating valve is mainly characterized in that double-diaphragm opposite control is adopted, a two-stage pressure reducing device is organically combined into the same copper alloy valve body, and controlled air current is gradually reduced to a set value on a way; an air inlet cavity and an air outlet cavity of the valve are arranged on the same horizontal axis, and two diaphragms are arranged up and down; main parts and components comprise a valve body, an end cover, diaphragms, a first-stage valve element assembly and second-stage valve element assemblies, and the valve element assembly is mainly composed of a valve seat, a pressure regulating push rod, a valve sealing socket, a pressure regulating spring and a push rod supporting piece. The first-stage valve element assembly is arranged on a vertical central axis of an oxygen valve, and four second-stage valve element assemblies are in circular symmetric distribution by surrounding a first stage main valve and are balanced in stress and compact in structure. The regulating valve disclosed by the invention has beautiful appearance, small volume and small flow, especially, the controlled air current is subjected to two-stage pressure reduction, larger pressure difference deltaP between an inlet and an outlet is realized, and the regulating valve disclosed by the invention has the advantages of good flow characteristics, good pressure regulating characteristics, sensitive adjustment, fast response speed, stable operation, reliable sealing and safety in use.
Description
Technical field
The invention belongs to basic part field, specifically a kind of two diaphragm two-stage decompression oxygen regulating valves that are applied to big flow, elevated pressures.
Background technique
Along with automobile, boats and ships, household electrical appliances etc. propose board quality under the situation of increasingly high requirement with the steel manufacturing industry in a large number, or else the steel slab surface that steel mill's continuous casting line gets off if add this procedure of flame cleaning, and its material has been difficult to satisfy user's demand.Therefore strand automatic scarfing machine is extensively paid attention at steel industry at present, is badly in need of being equipped with.Hot scarfing machine is after the preheating slab reaches FT, to use the pure oxygen gas flow of high pressure and steel slab surface to produce oxidation reaction and remove slag, thereby remove surface imperfection, the cleaning surface of formation smooth with oxygen and fuel gas mixed combustion.Defective during this descaling machine can be cleared up simultaneously on the end face of warm slab or normal temperature slab and bottom surface and two sides, the width of cleaning slab and thickness can adjustment automatically in prespecified range, clear up layer depth and cleaning speed and also can control automatically.This shows that the consumption of oxygen on this procedure is very big, it is also big to change fluctuation, and air pressure is also had different requirement.Moreover bigger to injection differential pressure △ P from source of the gas according to technological requirement, non-one-level decompression can reach, but as if the air pressure that successively decreases with two reduction valve of pipeline connection, then influence response fast, two make the loop complicated.Therefore should speed of response fast, good stability again just must have in the oxygen system of equipment and so a kind ofly can satisfy complicated required pressure modulating valve like this.Here it is the object of the invention and research direction.
In addition, oxygen is special gas, combustion-supporting boost, and it is very high to relate to oxygen Seal of Equipment technology and safety class, and domestic is being blank aspect the oxygen reduction valve of big latus rectum always, but this more manifests the urgency and the significance of this invention.
Summary of the invention
The object of the present invention is to provide a kind of pair of diaphragm two-stage decompression oxygen regulating valve.
Two diaphragm two-stage decompression oxygen regulating valves that the present invention proposes; Form by end cap 1, trapping membrane module 2, valve body 5, lower cover plate 7, one-level decompressor, second depressurized device; Wherein: the medial axis of valve body 5 is provided with the one-level decompressor; Be circumference around the one-level decompressor and be symmetrically distributed with the identical second depressurized device of quadruplet; Two trapping membrane modules 2 lay respectively at valve body 5 above and belows, and two end caps 1 pass through screw respectively in valve body 5 above and belows, and screw is passed through in valve body 5 belows in lower cover plate 7 two ends; One side of valve body 5 is a suction port, and opposite side is the air outlet.
The one-level decompressor is made up of lock screw 9, one-level pressure adjusting spring 10, adapter sleeve 11, one-level valve sealing seat 12, one-level pressure regulation push rod 13, one-level push rod supporting 14, pressing plate 15, one-level valve seat 16, stop nut 17 and second O-ring seals 18; One-level pressure regulation push rod 13 is positioned on the medial axis of valve body 5; The one of which end is positioned at trapping membrane module 2 belows on valve body 5 tops; The other end passes one-level valve seat 16; Be fixed on the one-level valve sealing seat 12 through pressure adjusting spring 10, locking nut 9, adapter sleeve 11, be provided with one-level push rod supporting 14 between one-level valve seat 16 and the one-level pressure regulation push rod 13, one-level pressure regulation push rod 13 can move up and down in one-level valve seat 16; Two block pressur plates 15 are between valve body 5 and one-level valve seat 16; Baffle plate 3 is positioned on the one-level valve seat 16, and baffle plate 3 is fixed on the valve body 5 through flat-bed machine screw 4, and baffle plate 3 is provided with stop nut 17 with one-level valve seat 16 joints;
Two decompression device consists of two clamping screw cap 19, spring seat 20, two pressure regulator spring 21, Merger nut 22, two valve sealing seat 23, two regulator mandrel assembly 24, the spring seat 25 , the spring 26, plunger support ring 27, two clamping screw cap 28 under, two seat 29 and O-ring 30 composed of two valve sealing seat 23 and the nut 22 is fixed by means of two pressure regulator at the top rod assembly 24, the secondary regulator valve spring 21 of the secondary seal seat 23 pressed against the valve seat 29 in the secondary, the secondary regulator spring 21 is attached the other end of the spring seat 20 and the plunger support ring 27, secondary regulator assembly 24 of the ejector ram support ring 27 through the plunger, the plunger can slide up and down the support ring 27, the secondary pressure regulator assembly 24, the other end of the ram through two seats 29, and ram secondary regulator valve 29 in the secondary 24 can move up and down, the secondary valve 29 in turn has a lower spring seat 25, spring 26, spring seat 20 and the plunger support ring 27, through the secondary compression the screw cap 28 to the valve seat 29 fixed to the lower part of the secondary, the secondary valve seat 29 through the secondary compression screw cap 19 is fixed to the valve body 5, the secondary valve seat 29 and the valve 5 is connected with a third point O-ring 30.
Among the present invention, the joint, suction port exterior edge face of said valve body 5 is provided with first O-ring seals 6.
Among the present invention, the joint, exterior edge face, air outlet of said valve body 5 is provided with first O-ring seals 6.
The present invention is being designed to be combined in a two-stage decompression device in the valve body with the two-stage decompression loop that two reduction valve are formed by connecting by pipeline usually.Its major character has 3 points: one adopts two diaphragms, upper and lower configuration, and control in opposite directions relies on the control air communication of this air chamber to cross the aperture that diaphragm promotes pressure regulation push rod change valve port respectively, leans on the throttling action stable output pressure of balance intake valve port constant.The post-decompression delivery pressure of the first order promptly is the suction pressure of second level decompression in this valve.Controlled air-flow gets off to have realized big pressure reduction △ P through two-stage decompression.And because the diaphragm type reduction valve is highly sensitive in reduction valve in the form of piston; Two-stage decompression is combined in one and has omitted the inter-stage pipeline and connect, and has not more had the air-flow damping of pipeline, so improved speed of response greatly, be quick on the draw, Flow characteristics, voltage adjustment characteristic be good.Two design in the two-stage decompression valve arrangement of one and arrange the shape that is that A myriad of stars surround the moon.First order decompressor is centered on the vertical centering control axis of oxygen valve, size more greatly, second level decompressor is quadruplet altogether, they are circumference around first order main valve and are symmetrically distributed, their sizes are littler, but the effective ventilation sectional area sum of quadruplet is not less than the first order.Arrange stress balance like this, compact structure is novel, aesthetic in appearance, easy for installation, volume little, flow is not little, efficient is high, Technological Economy property is good.The material of three valve bodies and end cap all adopts the silicon brass precision casting, is the erosion and the oxidation of opposing valve inner high voltage, high speed oxygen air-flow, special on the sealing valve port line spraying abrasion-proof alloy to keep reliable tightness and to improve durability.
Description of drawings
Fig. 1 is the principal section figure of two diaphragm two-stage decompression oxygen valve.
Fig. 2 is the rotation profile of two diaphragm two-stage decompression oxygen valve.
Numbers in the figure: one for the cover, 2 gas barrier membrane, 3 baffles, 4 for the flat machine screws, five of the body, six for the first O-ring, 7 for the next cover, within 8 hex screws, tighten the screws 9, 10 is a pressure regulator spring, 11 for the adapter sleeve 12 is a valve sealing seat 13 is a regulator mandrel, mandrel 14 is a bearing, 15 is plate, 16 is a valve seat 17 to limit nut 18 for the second O-ring 19 for the two clamping screw cap, 20 for the spring seat 21 for the two pressure regulator spring, 22 for the Merger nut, 23 for the two valve sealing seat 24 for the two regulator mandrel assembly 25 is spring seat 26 for the spring support ring 27 is a plunger 28 under for the two clamping screw cap, 29 for the two class seat, the third O-ring 30.
Embodiment
Combine accompanying drawing to further specify the present invention through embodiment below.
Example 1 shown in Figure 1 and Figure 2, the apparatus 1 by the cover, the gas barrier membrane 2, the baffle plate 3, flat machine screw 4, the valve 5, O-ring 6, the lower cover 7, Hexagon screw 8, locking screw 9, a pressure regulator spring 10, adapter sleeve 11, a valve sealing seat 12, a pressure regulator plunger 13, a mandrel support 14, plate 15, a valve Block 16, limit nut 17, O-ring 18, two clamping screw cap 19, spring seat 20, two pressure regulator spring 21, Merger nut 22, two valve sealing seat 23, two regulator ram assembly 24, the spring seat 25, spring 26, plunger support ring 27, the secondary compression the screw cap 28, the secondary valve seat 29 and the O-ring 30 composed of; wherein:
Two dual-diaphragm pressure oxygen regulator is the basic structure of the central axis of the valve body 5 to set up a regulator of a vacuum ejector 13, the main valve circumferentially around a symmetrical distribution of the four the same two decompression device, two regulator plunger 24 downward, two gas barrier membrane two opposite top and bottom mounting by socket head cap screws will cover a one end fastened to the body 5 Merger.And the air-inlet cavity of this valve and outlet chamber are positioned on the same horizontal axis of valve body 5.
Cover upper level pressure adjusting spring 10 on the central boss of valve body 5, successively pack into by locking nut 9, adapter sleeve 11, locking tighten the assembly parts of one-level valve sealing seat 12 that screw thread screws and one-level pressure regulation push rod 13 and lay out O-ring seals 18 and the assembly parts that is nested by supporting 14 of one-level push rod and one-level valve seat 16, with two block pressur plates 15 twist in compress one-level valve seat 16 on the valve body 5, the baffle plate 3 that closes is tightened a circle flat-bed machine screw 4, the stop nut 17 of on one-level valve seat 16, screwing on again.
Four two decompression device structure is exactly the same size, two seat 29 into the lower spring seat 25 at the turn, the spring 26, spring seat 20, the jack screw on the support ring 27 after two clamping screw cap 28 under and then put the O-ring 30 is inserted after the valve body 5, two valve sealing seat 23 put two spin regulator mandrel assembly 24 on Merger nut 22, the two regulators mandrel assembly 24 inserted two seat 29, and then turn into two pressure regulator spring 21, spring seat 20, a support ring 27 on the plunger ejector top, then screw the two clamping screw cap 19 is fastened to the body 5.
Lower cover plate 7 is loaded onto in the bottom of valve body 5, by a circle flat-bed machine screw 4 fastening it, load onto O-ring seals 6 in the inlet, outlet accent end face trough of valve body 5.
The said apparatus override formats: flange connects; Valve latus rectum: DN80; Working medium: oxygen; Operating temperature :-10
~+ 90 ℃; Maximum incoming pressure: 2.45 MPa; Maximum delivery pressure: 0.63MPa; Range of working pressure: 0.05
~2 MPa; Maximum gas supply flow: 67.2Nm
3/ min; Open and-shut mode: normally closed; Tightness: good; When bleed pressure changed ± 0.1 MPa, outlet pressure changed less than 2.5%; Rate of discharge is 5%
~When fluctuating in the 100 % scopes, outlet pressure changes less than 2.5%.This pair of data declaration diaphragm two-stage decompression oxygen regulating valve possesses Flow characteristics, pressure regulating performance is good, regulate sensitive, speed of response is fast, working stability, sealing remarkable advantage reliable, safe in utilization.
Claims (3)
1. two diaphragm two-stage decompression oxygen regulating valve; Form by end cap (1), trapping membrane module (2), valve body (5), lower cover plate 7, one-level decompressor, second depressurized device; It is characterized in that: the medial axis of valve body (5) is provided with the one-level decompressor; Be circumference around the one-level decompressor and be symmetrically distributed with the identical second depressurized device of quadruplet; Two trapping membrane modules (2) lay respectively at valve body (5) above and below, and two end caps (1) pass through screw respectively in valve body (5) above and below, and lower cover plate 7 passes through screw in valve body (5) below; One side of valve body (5) is a suction port, and opposite side is the air outlet;
The one-level decompressor is made up of lock screw (9), one-level pressure adjusting spring (10), adapter sleeve (11), one-level valve sealing seat (12), one-level pressure regulation push rod (13), the supporting of one-level push rod (14), pressing plate (15), one-level valve seat (16), stop nut (17) and second O-ring seals (18); One-level pressure regulation push rod (13) is positioned on the medial axis of valve body (5); The one of which end is positioned at trapping membrane module (2) below on valve body (5) top; The other end passes one-level valve seat (16); Be fixed on the one-level valve sealing seat (12) through pressure adjusting spring (10), locking nut (9), adapter sleeve (11), be provided with one-level push rod supporting (14) between one-level valve seat (16) and the one-level pressure regulation push rod (13), one-level pressure regulation push rod (13) can move up and down in one-level valve seat (16); Two block pressur plates (15) are positioned between valve body (5) and the one-level valve seat (16); Baffle plate (3) is positioned on the one-level valve seat (16), and baffle plate (3) is fixed on the valve body (5) through flat-bed machine screw (4), and baffle plate (3) is provided with stop nut (17) with one-level valve seat (16) joint;
Two decompression device consists of two clamping screw cap (19), spring seat (20), two pressure regulator spring (21), Merger nut (22), two valve sealing seat (23), two ram pressure regulator assembly (24), a spring seat (25), a spring (26), the jack support ring (27), two lower compression screw cap (28), the secondary valve seat (29) and O-ring seal ring (30), with two valve sealing seat (23) and by tightening the nut (22) fixed to the secondary regulator ram assembly (24), the secondary regulator spring (21) of the secondary valve seal seat ( 23) pressed in the secondary valve seat (29), the secondary regulator spring (21) attached to the other end of the spring seat (20) and the plunger support ring (27), secondary regulator mandrel assembly ( 24) of the mandrel through the mandrel support ring (27), and the plunger support ring (27) slide up and down, secondary regulator ram assembly (24) the other end through the two seats (29) , and the secondary regulator ram (24) to the secondary valve seat (29) moves up and down, the secondary valve seat (29) in turn has a lower spring seat (25), a spring (26), spring seat ( 20) and the mandrel support ring (27), through secondary compression the screw cap (28) fixed to the secondary valve seat (29) the lower part, the secondary valve seat (29) through the secondary compression screw cap ( 19) fixed to the valve body (5), the secondary valve seat (29) and the body (5) connection with a third O-ring (30).
2. according to claim 1 pair of diaphragm two-stage decompression oxygen regulating valve is characterized in that the joint, suction port exterior edge face of said valve body (5) is provided with first O-ring seals (6).
3. according to claim 1 pair of diaphragm two-stage decompression oxygen regulating valve is characterized in that the joint, exterior edge face, air outlet of said valve body (5) is provided with first O-ring seals (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210122186 CN102619996B (en) | 2012-04-25 | 2012-04-25 | Double-diaphragm two-stage reduced pressure oxygen regulating valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210122186 CN102619996B (en) | 2012-04-25 | 2012-04-25 | Double-diaphragm two-stage reduced pressure oxygen regulating valve |
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| Publication Number | Publication Date |
|---|---|
| CN102619996A true CN102619996A (en) | 2012-08-01 |
| CN102619996B CN102619996B (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210122186 Active CN102619996B (en) | 2012-04-25 | 2012-04-25 | Double-diaphragm two-stage reduced pressure oxygen regulating valve |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB825946A (en) * | 1956-05-22 | 1959-12-23 | Mathew Livingstone Freeman | Fluid-control valves |
| US3252471A (en) * | 1963-04-17 | 1966-05-24 | Westinghouse Air Brake Co | Multi-purpose valve device |
| CN2143702Y (en) * | 1992-09-22 | 1993-10-13 | 钟鹏飞 | Gas pressure regulating and stabilizing device |
| KR20010081556A (en) * | 2000-02-16 | 2001-08-29 | 구자홍 | gas of pressure regulator |
| JP2003122437A (en) * | 2001-10-15 | 2003-04-25 | Smc Corp | Fluid pressure controller |
| CN2876476Y (en) * | 2006-03-17 | 2007-03-07 | 重庆鼎辉汽车燃气系统有限公司 | Dual stage gas pressure reducer |
| CN101354592A (en) * | 2008-07-17 | 2009-01-28 | 朱成伟 | Gas pressure reducer |
| CN201228792Y (en) * | 2007-08-16 | 2009-04-29 | 陆丕贤 | Pneumatic air pressure reducing valve |
| CN201339520Y (en) * | 2008-12-01 | 2009-11-04 | 中国汽车工程研究院有限公司 | Large flow-rate electric spray pressure regulator |
| CN101922580A (en) * | 2010-07-30 | 2010-12-22 | 青岛迅力科技有限公司 | Differential pressure valve capable of automatically adjusting environments |
| CN201696676U (en) * | 2010-06-13 | 2011-01-05 | 普鲁卡姆电器（上海）有限公司 | Double-gas-source high-flow-rate pressure reducing valve |
| CN102116412A (en) * | 2009-12-30 | 2011-07-06 | 林建州 | Dual-stage gas decompressor |
-
2012
- 2012-04-25 CN CN 201210122186 patent/CN102619996B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB825946A (en) * | 1956-05-22 | 1959-12-23 | Mathew Livingstone Freeman | Fluid-control valves |
| US3252471A (en) * | 1963-04-17 | 1966-05-24 | Westinghouse Air Brake Co | Multi-purpose valve device |
| CN2143702Y (en) * | 1992-09-22 | 1993-10-13 | 钟鹏飞 | Gas pressure regulating and stabilizing device |
| KR20010081556A (en) * | 2000-02-16 | 2001-08-29 | 구자홍 | gas of pressure regulator |
| JP2003122437A (en) * | 2001-10-15 | 2003-04-25 | Smc Corp | Fluid pressure controller |
| CN2876476Y (en) * | 2006-03-17 | 2007-03-07 | 重庆鼎辉汽车燃气系统有限公司 | Dual stage gas pressure reducer |
| CN201228792Y (en) * | 2007-08-16 | 2009-04-29 | 陆丕贤 | Pneumatic air pressure reducing valve |
| CN101354592A (en) * | 2008-07-17 | 2009-01-28 | 朱成伟 | Gas pressure reducer |
| CN201339520Y (en) * | 2008-12-01 | 2009-11-04 | 中国汽车工程研究院有限公司 | Large flow-rate electric spray pressure regulator |
| CN102116412A (en) * | 2009-12-30 | 2011-07-06 | 林建州 | Dual-stage gas decompressor |
| CN201696676U (en) * | 2010-06-13 | 2011-01-05 | 普鲁卡姆电器（上海）有限公司 | Double-gas-source high-flow-rate pressure reducing valve |
| CN101922580A (en) * | 2010-07-30 | 2010-12-22 | 青岛迅力科技有限公司 | Differential pressure valve capable of automatically adjusting environments |
Non-Patent Citations (1)
| Title |
|---|
| 严仁兴: "双级氧气减压阀的改进", 《阀门》 * |
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| CN102619996B (en) | 2013-08-07 |
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Inventor after: Cheng Huang Inventor after: Zhang Yongqiang Inventor after: Xu Zhishan Inventor before: Cheng Huang Inventor before: Zhang Yongqiang Inventor before: Xu Zhishan Inventor before: Huang Zhenbo |