CN104197039A - High-performance diaphragm valve - Google Patents
High-performance diaphragm valve Download PDFInfo
- Publication number
- CN104197039A CN104197039A CN201410481811.8A CN201410481811A CN104197039A CN 104197039 A CN104197039 A CN 104197039A CN 201410481811 A CN201410481811 A CN 201410481811A CN 104197039 A CN104197039 A CN 104197039A
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- CN
- China
- Prior art keywords
- logical liquid
- valve
- liquid portion
- fixed
- fluid
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/123—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm the seat being formed on the bottom of the fluid line
Abstract
The invention provides a high-performance diaphragm valve and belongs to the field of valves. The high-performance diaphragm valve comprises a valve body, a valve seat, a handle, a valve bonnet, a screw rod and a diaphragm. The valve body comprises a water inlet passage and a water outlet passage, the inner walls of the water inlet passage, the water outlet passage and the valve seat are provided with rubber layers, the inner end of the screw rod is connected to the diaphragm which is fixed between the valve body and the valve bonnet, and the outer end of the screw rod is connected to the handle. The diaphragm comprises a fixed portion and a body, the body comprises a liquid passage portion, the bottom of the liquid passage portion is fixedly connected to the valve seat, two sides of the liquid passage portion are provided with liquid passage ports, baffles slidably sleeve two inner sides of the liquid passage portion respectively, limiting strips are arranged on two inner sides of the liquid passage portion, a seal plate is further arranged in the liquid passage portion, two sides of the seal plate are fixedly connected onto the inner wall of the liquid passage portion, two ends of the seal plate are fixed onto the limiting strips respectively, a connection plate is fixedly connected to the inner end of the screw rod, and two ends of the connection plates are fixedly connected with the ends of the two baffles respectively. The high-performance diaphragm valve is excellent in sealing performance, capable of preventing fluid leakage, free of replacement of the diaphragm and long in service life.
Description
Technical field
The invention belongs to valve field, relate to a kind of high-performance membrane valve.
Background technique
Membrane valve is a kind of block valve of special shape, comes across the twenties in 20th century.Its open-shut device is a barrier film made from soft material, body cavity and valve gap inner chamber and driver part is separated, therefore claim membrane valve.Block valve with elastic diaphragm as open-shut device and Sealing.The typical structure of membrane valve is that valve body is ridge type, ridge and barrier film composition sealing pair.Barrier film periphery is fixed, and valve pocket is divided into not connected two-part by it.Barrier film is fluid passage below.The parts such as flap, valve rod, valve gap are all positioned at barrier film top, with fluid isolation, are not subject to flow-induced corrosion, can prevent again the contaminating impurity fluids such as iron rust simultaneously.Membrane valve does not need stuffing box, does not have the sealing problem of valve rod.In valve body, conventionally serve as a contrast rubber or enamel, also have entirety to adopt (as stainless steel and the engineering plastics etc.) of corrosion resistant metal or nonmetallic material.Diaphragm material is generally rubber and fluoroplastic.The life-span of membrane valve is depended on the fatigue resistance of barrier film.It is specially adapted to corrosive fluid and requires clean fluid, as acetic acid, chemical fibre raw material and boiler soft water etc.Its working pressure is generally not more than 0.6 MPa, and operating temperature is generally less than 100 DEG C, and inside nominal diameter is not more than 350 millimeters.
Known; membrane valve is directly to combine closely to realize sealing by barrier film and valve seat; valve seat and barrier film are all to adopt flexible material to make; realize sealing by extrusion-deformation; but in reality; both sealing surfaces are single plane; often can cause fluid leakage, the fluid in membrane valve is generally to have corrosive fluid, can cause the generation of security incident after leakage; the sealability of visible membrane valve is very important; in addition, barrier film long-term time after, the easy aging fracture of its folding portion; need periodic replacement, very trouble.
Summary of the invention
The object of the invention is for the above-mentioned problems in the prior art, a kind of high-performance membrane valve is provided, this high-performance membrane valve good seal performance, prevent fluid leakage, without changing barrier film, solved existing membrane valve poor sealing performance, fluid easily leaks, the problem of the easy aged deterioration of barrier film.
Object of the present invention can realize by following technical proposal: a kind of high-performance membrane valve, comprise valve body, valve seat, handle, bonnet, screw mandrel and the barrier film of being made by rubber material, described valve body comprises intake tunnel and exhalant canal, described intake tunnel, on the inwall of exhalant canal, there is one deck rubber layer, it between described intake tunnel and exhalant canal, is valve seat, on described valve base inner wall, be enclosed with equally rubber layer, described barrier film is fixed between described valve body and bonnet, described screw mandrel the inner is connected in described barrier film, described screw mandrel outer end is connected in described handle, described barrier film comprises fixing part and body, it is characterized in that, the body center of described barrier film has logical liquid portion, described logical liquid portion be square one end be opening and inner be cavity, the bottom of described logical liquid portion is fixed on described valve seat, the both sides of described logical liquid portion offer fluid-through port, described fluid-through port is positioned at described intake tunnel and exhalant canal, in described logical liquid portion, the equal flip sleeve in both sides is provided with the baffle plate that is tabular, described logical liquid portion also has the positive stop strip that described baffle plate of stopping of some cross settings is used in both sides, described baffle plate can seal described fluid-through port, in described logical liquid portion, also there is sealing plate, described sealing plate both sides are fixed on the inwall of described logical liquid portion, described sealing plate one end be fixed on the positive stop strip of described logical liquid portion one side, described sealing plate the other end be fixed on the positive stop strip of described logical liquid portion opposite side, the inner end of described screw mandrel is fixed with connecting plate, be connected the respectively end of described two baffle plates, the two ends of described connecting plate.
Lead to liquid portion structure by adding on existing barrier film, make valve open without the turnover by septum body, open and close fluid-through port by baffle plate and make the state of valve in opening and closing, structural design is ingenious, avoided barrier film turnover number of times too much to cause fractureing, its life-span extended greatly, sealing plate effect make to prevent that fluid from entering in bonnet that valve is caused to corrosion, the bottom that leads to liquid portion is connected with the inwall of valve seat all the time, and sealability is reliable.Logical liquid portion and barrier film are integral type structure, so the material of making is also identical, screw mandrel drives baffle plate motion by connecting plate, screw mandrel the inner is connected and the center of connecting plate, stability is strong, can not shake, positive stop strip plays position-limiting action to baffle plate, and dislocation is caused by fluid impact in anti-baffle plate bottom simultaneously.
In above-mentioned a kind of high-performance membrane valve, described fluid-through port is positioned at the bottom place of described logical liquid portion both sides and described fluid-through port and is connected with described logical liquid portion diapire.
After this kind of structure makes valve open, fluid can smooth and easyly pass through fast, there will not be card flow phenomenon.
In above-mentioned a kind of high-performance membrane valve, between described screw mandrel and described connecting plate, there is reinforced block triangular in shape, described reinforced block one end is fixed on the outer wall of described screw mandrel, and the described reinforced block the other end is fixed on described connecting plate.
Reinforced block plays and strengthens the effect of join strength, when hydrodynamic pressure excessive, valve opening moment screw mandrel and baffle plate place easily rupture, reinforced block has effectively increased intensity.
In above-mentioned a kind of high-performance membrane valve, the positive stop strip that described logical liquid portion both sides all have 2 positive stop strips and the same side be arranged in parallel.
Wherein a pair of positive stop strip is provided with sealing plate, and another is arranged on top, the bottom place that is positioned at logical liquid portion to positive stop strip, be arranged that it is easy to make to process in parallel, facilitates baffle plate to install.
In above-mentioned a kind of high-performance membrane valve, described sealing plate is positioned near on the positive stop strip of described opening.
Sealing plate existence place fluid and enter in bonnet, the chamber forming with logical liquid portion bottom by sealing plate carrys out flow-through fluid.
In above-mentioned a kind of high-performance membrane valve, described baffle plate and sealing plate adopt the material identical with described logical liquid portion to make.
Because the fluid of membrane valve circulation has corrosivity mostly, so all adopting rubber material to make, baffle plate and sealing plate prevent from being corroded.
Compared with prior art, this high-performance membrane valve has the following advantages:
1, this high-performance membrane valve has changed traditional diaphragm valve structure, without the opening and closing that realize valve by barrier film, without periodic replacement barrier film, has increased the working life of barrier film.
2, this high-performance membrane valve is by conducting and the closure of two baffle controls fluid-through ports, and structural design is ingenious, and using effect is good.
3, the bottom of the logical liquid of this high-performance membrane valve portion is directly connected on valve seat, has effectively strengthened sealability, prevents that fluid is from leaking between the two.
4, between the screw mandrel of this high-performance membrane valve and connecting plate, have reinforced block, reinforced block plays and strengthens the effect of join strength, when hydrodynamic pressure excessive, valve opening moment screw mandrel and baffle plate place easily rupture, reinforced block has effectively increased intensity.
5, the fluid-through port of this high-performance membrane valve is positioned at the bottom place of logical liquid portion both sides and fluid-through port and is connected with logical liquid portion diapire.After this kind of structure makes valve open, fluid can smooth and easyly pass through fast, there will not be card flow phenomenon.
6, the baffle plate of this high-performance membrane valve adopts the material identical with leading to liquid portion to make with sealing plate.Because the fluid of membrane valve circulation has corrosivity mostly, so all adopting rubber material to make, baffle plate and sealing plate prevent from being corroded.
Brief description of the drawings
Fig. 1 is this high-performance membrane valve overall structure schematic diagram.
Fig. 2 is the logical liquid portion of this high-performance membrane valve and the long splice composition of screw mandrel.
Fig. 3 is the concrete structure figure of the logical liquid portion of this high-performance membrane valve.
In figure, 1, valve body; 1a, intake tunnel; 1b, exhalant canal; 2, valve seat; 3, handle; 4, screw mandrel; 5, barrier film; 5a, fixing part; 5b, body; 5b1, logical liquid portion; 5b11, fluid-through port; 5b12, positive stop strip; 6, rubber layer; 7, baffle plate; 8, sealing plate; 9, connecting plate; 10, reinforced block.
Embodiment
As shown in Figure 1 to Figure 3, this high-performance membrane valve, comprise valve body 1, valve seat 2, handle 3, bonnet, screw mandrel 4 and the barrier film 5 of being made by rubber material, valve body 1 comprises intake tunnel 1a and exhalant canal 1b, intake tunnel 1a, on the inwall of exhalant canal 1b, there is one deck rubber layer 6, between intake tunnel 1a and exhalant canal 1b, it is valve seat 2, on valve seat 2 inwalls, be enclosed with equally rubber layer 6, barrier film 5 is fixed between valve body 1 and bonnet, screw mandrel 4 the inners are connected in barrier film 5, screw mandrel 4 outer ends are connected in handle 3, barrier film 5 comprises fixing part 5a and body 5b, the body 5b center of barrier film 5 has the logical liquid 5b1 of portion, the logical liquid 5b1 of portion be square one end be opening and inner be cavity, the bottom of the logical liquid 5b1 of portion is fixed on valve seat 2, the both sides of the logical liquid 5b1 of portion offer fluid-through port 5b11, fluid-through port 5b11 is positioned at intake tunnel 1a and exhalant canal 1b, in the logical liquid 5b1 of portion, the equal flip sleeve in both sides is provided with the baffle plate 7 that is tabular, in the logical liquid 5b1 of portion both sides, also there is the positive stop strip 5b12 that stops baffle plate 7 use of some cross settings, baffle plate 7 can seal fluid-through port 5b11, in the logical liquid 5b1 of portion, also there is sealing plate 8, sealing plate 8 both sides are fixed on the inwall of the logical liquid 5b1 of portion, one end of sealing plate 8 is fixed on the positive stop strip 5b12 of the logical liquid 5b1 of portion mono-side, the other end of sealing plate 8 is fixed on the positive stop strip 5b12 of the logical liquid 5b1 of portion opposite side, the inner end of screw mandrel 4 is fixed with connecting plate 9, be connected the respectively end of two baffle plates 7, the two ends of connecting plate 9.
By add the logical liquid 5b1 of portion structure on existing barrier film 5, without making valve open by the turnover of barrier film 5 body 5b, open and close fluid-through port 5b11 by baffle plate 7 and make the state of valve in opening and closing, structural design is ingenious, avoided barrier film 5 to turn down number of times too much and caused fractureing, its life-span is extended greatly, the effect of sealing plate 8 makes to prevent that fluid from entering in bonnet that valve is caused to corrosion, the bottom of the logical liquid 5b1 of portion is connected with the inwall of valve seat 2 all the time, and sealability is reliable.The logical liquid 5b1 of portion and barrier film 5 are integral type structure, so the material of making is also identical, screw mandrel 4 drives baffle plate 7 to move by connecting plate 9, screw mandrel 4 the inners are connected and the center of connecting plate 9, stability is strong, can not shake, positive stop strip 5b12 plays position-limiting action to baffle plate 7, and dislocation is caused by fluid impact in anti-baffle plate 7 bottoms simultaneously.
As shown in Figures 2 and 3, fluid-through port 5b11 is positioned at the logical liquid 5b1 of portion both sides bottom place and fluid-through port 5b11 are connected with the logical liquid 5b1 of portion diapire.After this kind of structure makes valve open, fluid can smooth and easyly pass through fast, there will not be card flow phenomenon.
As shown in Figure 2, between screw mandrel 4 and connecting plate 9, have reinforced block triangular in shape 10, reinforced block 10 one end are fixed on the outer wall of screw mandrel 4, and reinforced block 10 the other ends are fixed on connecting plate 9.Reinforced block 10 plays the effect that strengthens join strength, and excessive when hydrodynamic pressure, the moment screw mandrel 4 of valve opening easily ruptures with baffle plate 7 places, and reinforced block 10 has effectively increased intensity.
As shown in Figure 3, the positive stop strip 5b12 that the logical liquid 5b1 of portion both sides all have 2 positive stop strip 5b12 and the same side be arranged in parallel.Wherein a pair of positive stop strip 5b12 is provided with sealing plate 8, and another is arranged on top, the bottom place that is positioned at the logical liquid 5b1 of portion to positive stop strip 5b12, be arranged that it is easy to make to process in parallel, facilitates baffle plate 7 to install.
Sealing plate 8 is positioned near on the positive stop strip 5b12 of opening.The existence of sealing plate 8 is placed fluid and is entered in bonnet, carrys out flow-through fluid by sealing plate 8 and the chamber that the logical liquid 5b1 of portion bottom forms.
Baffle plate 7 adopts the material identical with the logical liquid 5b1 of portion to make with sealing plate 8.Because the fluid of membrane valve circulation has corrosivity mostly, so all adopting rubber material to make, baffle plate 7 and sealing plate 8 prevent from being corroded.
This high-performance membrane valve good seal performance, prevents fluid leakage, without changing barrier film 5, has greatly increased the working life of valve.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (6)
1. a high-performance membrane valve, comprise valve body, valve seat, handle, bonnet, screw mandrel and the barrier film of being made by rubber material, described valve body comprises intake tunnel and exhalant canal, described intake tunnel, on the inwall of exhalant canal, there is one deck rubber layer, it between described intake tunnel and exhalant canal, is valve seat, on described valve base inner wall, be enclosed with equally rubber layer, described barrier film is fixed between described valve body and bonnet, described screw mandrel the inner is connected in described barrier film, described screw mandrel outer end is connected in described handle, described barrier film comprises fixing part and body, it is characterized in that, the body center of described barrier film has logical liquid portion, described logical liquid portion be square one end be opening and inner be cavity, the bottom of described logical liquid portion is fixed on described valve seat, the both sides of described logical liquid portion offer fluid-through port, described fluid-through port is positioned at described intake tunnel and exhalant canal, in described logical liquid portion, the equal flip sleeve in both sides is provided with the baffle plate that is tabular, described logical liquid portion also has the positive stop strip that described baffle plate of stopping of some cross settings is used in both sides, described baffle plate can seal described fluid-through port, in described logical liquid portion, also there is sealing plate, described sealing plate both sides are fixed on the inwall of described logical liquid portion, described sealing plate one end be fixed on the positive stop strip of described logical liquid portion one side, described sealing plate the other end be fixed on the positive stop strip of described logical liquid portion opposite side, the inner end of described screw mandrel is fixed with connecting plate, be connected the respectively end of described two baffle plates, the two ends of described connecting plate.
2. a kind of high-performance membrane valve according to claim 1, is characterized in that, described fluid-through port is positioned at the bottom place of described logical liquid portion both sides and described fluid-through port and is connected with described logical liquid portion diapire.
3. a kind of high-performance membrane valve according to claim 1 and 2, it is characterized in that, between described screw mandrel and described connecting plate, have reinforced block triangular in shape, described reinforced block one end is fixed on the outer wall of described screw mandrel, and the described reinforced block the other end is fixed on described connecting plate.
4. a kind of high-performance membrane valve according to claim 1 and 2, is characterized in that, the positive stop strip that described logical liquid portion both sides all have 2 positive stop strips and the same side be arranged in parallel.
5. a kind of high-performance membrane valve according to claim 1 and 2, is characterized in that, described sealing plate is positioned near on the positive stop strip of described opening.
6. a kind of high-performance membrane valve according to claim 1 and 2, is characterized in that, described baffle plate and sealing plate adopt the material identical with described logical liquid portion to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410481811.8A CN104197039A (en) | 2014-09-19 | 2014-09-19 | High-performance diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410481811.8A CN104197039A (en) | 2014-09-19 | 2014-09-19 | High-performance diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104197039A true CN104197039A (en) | 2014-12-10 |
Family
ID=52082378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410481811.8A Pending CN104197039A (en) | 2014-09-19 | 2014-09-19 | High-performance diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104197039A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333175A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Manual diaphragm valve structure |
| CN106885011A (en) * | 2017-04-17 | 2017-06-23 | 上海阀门五厂有限公司 | One seed nucleus level manual diaphragm valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5632465A (en) * | 1990-10-29 | 1997-05-27 | Cordua; Paul M. | Valve assembly |
| CN2466456Y (en) * | 2001-02-27 | 2001-12-19 | 朱孝有 | Diaphragm valve |
| CN201666388U (en) * | 2009-11-12 | 2010-12-08 | 陈久挺 | Middle-large aperture diaphragm valve controlled by small moment |
| CN102369041A (en) * | 2008-12-10 | 2012-03-07 | 赛多利斯生物技术公司 | Cutting a collapsible tube for biopharmaceutical use |
| CN102597585A (en) * | 2009-07-27 | 2012-07-18 | 默沙东公司 | Diaphragm valve with improved sealing performance and leak detection |
-
2014
- 2014-09-19 CN CN201410481811.8A patent/CN104197039A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5632465A (en) * | 1990-10-29 | 1997-05-27 | Cordua; Paul M. | Valve assembly |
| CN2466456Y (en) * | 2001-02-27 | 2001-12-19 | 朱孝有 | Diaphragm valve |
| CN102369041A (en) * | 2008-12-10 | 2012-03-07 | 赛多利斯生物技术公司 | Cutting a collapsible tube for biopharmaceutical use |
| CN102597585A (en) * | 2009-07-27 | 2012-07-18 | 默沙东公司 | Diaphragm valve with improved sealing performance and leak detection |
| CN201666388U (en) * | 2009-11-12 | 2010-12-08 | 陈久挺 | Middle-large aperture diaphragm valve controlled by small moment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333175A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Manual diaphragm valve structure |
| CN106885011A (en) * | 2017-04-17 | 2017-06-23 | 上海阀门五厂有限公司 | One seed nucleus level manual diaphragm valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141210 |