CN104806773A - High-accuracy adjusting butterfly valve - Google Patents
High-accuracy adjusting butterfly valve Download PDFInfo
- Publication number
- CN104806773A CN104806773A CN201510239052.9A CN201510239052A CN104806773A CN 104806773 A CN104806773 A CN 104806773A CN 201510239052 A CN201510239052 A CN 201510239052A CN 104806773 A CN104806773 A CN 104806773A
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- CN
- China
- Prior art keywords
- valve
- dish plate
- valve pocket
- dish
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a high-accuracy adjusting butterfly valve. The high-accuracy adjusting butterfly valve has the advantages that the opening degree and flow rate linearity of the valve is better, and the flow rate can be accurately adjusted. The high-accuracy adjusting butterfly valve comprises a valve body, wherein the valve body is provided with a valve cavity; a butterfly plate in the valve cavity is rotationally arranged on the valve body through a valve rod; the butterfly plate is driven by the valve rod to rotate, and the butterfly plate is plugged or the valve cavity is opened; a semi-plugging ring with a curve surface is arranged at the inner wall of the valve cavity at one side of the axial plane of the axis of the valve cavity and the axis of the valve rod; the semi-plugging ring is in a semicircle shape along the circumference direction of the valve cavity; when the butterfly plate rotates, if an included angle between the butterfly plate and the cross section of the valve cavity is smaller than A, the periphery of the butterfly plate at one side of the axial plane is in contact with the curve surface, and the valve cavity is plugged; if the included angle between the butterfly plate and the cross section of the valve cavity is greater than or equal to A, a flow through passage is formed between the periphery of the butterfly plate at one side of the axial plane and the semi-plugging ring or the inner wall of the valve cavity, and the valve cavity is opened; A is greater than 0 degree, and is smaller than or equal to 45 degrees; when the included angle between the butterfly plate and the cross section of the valve cavity is not 0 degree, a flow through passage is formed between the periphery of the butterfly plate at the other side of the axial plane and the inner wall of the valve cavity, and the valve cavity is opened.
Description
Technical field
This technology relates to dish valve, especially can the highi degree of accuracy regulation disc valve of accurate control of fluid flow, particularly gas flow.
Background technique
The dish valve of current routine, have columnar valve pocket in valve body, axial length is short, the built-in dish plate of valve pocket, and dish plate is driven by the valve rod through valve pocket, and rotation valve rod changes the deflection angle of dish plate, can control the flow of gas.When dish plate and valve pocket cross section angle are 0 °, valve pocket is by the shutoff of dish plate, and butterfly valve is in closed condition; When dish plate and valve pocket cross section angle (aperture of valve) are not 0 °, between the valve pocket inwall and dish plate periphery of the axial plane both sides at valve pocket axis and valve rod axis place, all form flow channels, valve pocket is opened, and butterfly valve is in open mode.
Owing to all forming flow channels between the valve pocket inwall of axial plane both sides and dish plate periphery, and the sectional area of flow channels increases rapidly along with the increase of the aperture of valve, thus by the fluid flow of flow channels and the aperture linearity of valve poor.Especially in the aperture of valve within the scope of 0 °-30 °, fluid flow increases rapidly along with the aperture linearity of valve, poorer with the aperture linearity of valve.This makes to be difficult to accomplish to the accurate control of flow, especially more difficult in the accurate control of the less scope of flow.
If common butterfly valve is used in gas burner, the flow to inflammable gas controls, and the flow of inflammable gas controls low precision when Smaller load, can cause waste inflammable gas.
Summary of the invention
The object of this technology be to provide a kind of aperture of valve and flow linearity better, the highi degree of accuracy regulation disc valve that accurately can regulate flow.
Highi degree of accuracy regulation disc valve described in this technology, comprises the valve body with valve pocket, and the dish plate being positioned at valve pocket is rotated by valve rod and is arranged on valve body; Dish plate is driven to rotate by valve rod, dish plate shutoff or open valve pocket; The valve pocket inwall of the axial plane side at valve pocket axis and valve rod axis place arranges the half shutoff ring with curved surface; Half shutoff ring is semi-circular in valve pocket circumferential direction; When dish plate rotates, if the angle < A of dish plate and valve pocket cross section, the shutoff valve pocket in the dish plate periphery of axial plane side and described curved face contact; If the angle >=A of dish plate and valve pocket cross section, between the dish plate periphery of axial plane side and half shutoff ring or valve pocket inwall, form flow channels and open valve pocket; 0 ° of < A≤45 °; When the angle of dish plate and valve pocket cross section is non-vanishing, between the dish plate periphery and valve pocket inwall of axial plane opposite side, forms flow channels and open valve pocket.
Above-mentioned highi degree of accuracy regulation disc valve, 0 ° of < A≤30 °.
Above-mentioned highi degree of accuracy regulation disc valve, curved surface width on valve pocket axial direction is the widest in semiorbicular center, and at semiorbicular two ends, place is the narrowest.
Above-mentioned highi degree of accuracy regulation disc valve, half shutoff ring and valve body are one.
Above-mentioned highi degree of accuracy regulation disc valve, valve rod is through valve pocket, and its two ends are hubbed in the through hole on valve body, and dish plate is connected on valve rod.
Above-mentioned highi degree of accuracy regulation disc valve, dish plate is made up of two and half dish plates, and half dish plate is fixed by screws on valve rod; Two and half dish plates with perpendicular to valve rod plane for symmetry plane symmetrical.Dish plate is made up of two and half dish plates, is convenient to the installation of dish plate.
Above-mentioned highi degree of accuracy regulation disc valve, valve body end face has screw hole.
Above-mentioned highi degree of accuracy regulation disc valve, valve body end face has the groove for embedding sealing O type circle.
Above-mentioned highi degree of accuracy regulation disc valve, with dish Board position graduation indication on valve rod.
The beneficial effect of this technology: this highi degree of accuracy regulation disc valve is provided with half shutoff ring on the valve pocket inwall of axial plane side, when the aperture of such valve is less than a, the curved surface of half shutoff ring contacts with dish plate periphery, that is, arranging between the valve pocket inwall of half shutoff ring and dish plate periphery is closed state, fluid cannot pass through, and does not arrange the opposite side valve pocket inwall of half shutoff ring and be identical with common butterfly valve structure between dish plate periphery, and fluid can pass through.In other words, when the aperture of valve is less than a, only there is in the side of axial plane the flow channels passed through for fluid, like this, the aperture of valve in the scope being less than a compared with the linearity of flow common butterfly valve tool improve a lot, drive dish plate to rotate by rotation valve rod, precisely can control flow.
Accompanying drawing explanation
Fig. 1 is the explosive view of highi degree of accuracy regulation disc valve;
Fig. 2 is highi degree of accuracy regulation disc valve plan view;
Fig. 3 is the rear view of Fig. 2;
Fig. 4 is the stereogram of valve body;
Fig. 5 is the A-A sectional view (aperture of valve is 0 °) of Fig. 2;
Fig. 6 is the aperture of valve is 30 ° of schematic diagram;
Fig. 7 is the aperture of valve is 45 ° of schematic diagram;
Fig. 8 is the B-B sectional view of Fig. 2.
Embodiment
See highi degree of accuracy regulation disc valve shown in the 1-3 shown in figure, comprise the valve body 1 with valve pocket 11, valve rod 3 is through valve pocket, and its two ends are hubbed on the ring set 7, the end cap 8 that are positioned at through hole 12 on valve body.The dish plate 2 being positioned at valve pocket is rotated by valve rod 3 and is arranged on valve body.Dish plate is made up of two and half dish plates 21,22, and half dish plate is fixed on valve rod by screw 4; Two and half dish plates with perpendicular to valve rod plane for symmetry plane symmetrical.Bearing pin 100 is through valve rod.There is between ring set 7 and dish plate seal ring 9, there is between end cap and valve body sealing gasket 10.Bearing pin 100, ring set 7, end cap 8, seal ring 9, sealing gasket 10 etc. belong to prior art with the connection of valve body, valve rod.Screw hole 19 is had at the end face of valve body.
Valve pocket inwall 13 on the left of the axial plane at valve pocket axis and valve rod axis place is arranged the half shutoff ring 14 with curved surface 15; Half shutoff ring is semi-circular in valve pocket circumferential direction.Curved surface width on valve pocket axial direction is the widest in semiorbicular center 16, and at semiorbicular two ends, place 17 is the narrowest.
Rotation valve rod, when dish plate rotates, if the angle < of dish plate and valve pocket cross section 30 °, see Fig. 5, the dish plate periphery (half relative to dish plate 2 periphery) on the left of axial plane contacts and shutoff valve pocket with described curved surface 15.If angle >=30 ° of dish plate and valve pocket cross section, see Fig. 6, form flow channels 5 between the dish plate periphery on the left of axial plane and half shutoff ring or valve pocket inwall and open valve pocket.When the angle of dish plate and valve pocket cross section is non-vanishing, see Fig. 7, the dish plate periphery (half relative to dish plate 2 periphery) on the right side of axial plane and form flow channels 6 between valve pocket inwall 18 and open valve pocket.
This technology discloses a kind of highi degree of accuracy regulation disc valve, comprises valve body, and body cavity is provided with dish plate, and the side of body cavity is hemisphere face structure, and opposite side body cavity is the same with conventional dish valve.Dish plate is connected with valve rod by screw; With sealing gasket and end cap axially locating in the through hole that valve rod is passed in valve body.After changing the deflection angle (aperture of valve) of dish plate, when the aperture of valve is less than 30 °, dish plate with body cavity while become spheres intersect, fluid can only be flowed out by flow channels 6.The aperture linearity of the air-flow passed through like this or other fluid and valve is relatively good.The beneficial effect of this technology: improve and control the precision of fluid flow, is particularly suitable for the flow control valve that burns, wear-resisting, resistance to high temperature good, safe and reliable, long service life, can substitute the valve of old Flow-rate adjustment low precision completely.
The advantage of this technology:
1, structure is simple, embedded SMA actuators hemisphere face structure in dish body, and can also utilizing of other material.
2, highly versatile, can be used in various gas and control above flow, and as biogas, rock gas, biogas, coke-stove gas etc., concerning the effect also serving " energy-conservation " the gas valve being used in burner, economic and social benefit is obvious.
3, easy for installation, valve body end face has fixed screw holes, is used for fixing on piping flange, installs simple and convenient.Do not need to adopt double end long screw to fix, only need to use conventional hexagonal screw just.
4, control accuracy is high, especially when the aperture of valve is less than 30 °, with dish plate by flow, flow control accuracy is high.
5, Die Ban symmetric configuration, reduces the difficulty that overall processing is installed.
6, valve body end face has the groove 101 for embedding sealing O type circle, the material of embedding sealing O type circle is selected according to use medium, and highly versatile, is applicable to each gas.
7, on valve rod with dish plate graduation indication, the aperture size of valve plate at same plane, thus can be reflected in the direction shown in aperture and valve plate direction.
Claims (9)
1. highi degree of accuracy regulation disc valve, comprises the valve body with valve pocket, and the dish plate being positioned at valve pocket is rotated by valve rod and is arranged on valve body; Dish plate is driven to rotate by valve rod, dish plate shutoff or open valve pocket; It is characterized in that: the half shutoff ring with curved surface is set on the valve pocket inwall of the axial plane side at valve pocket axis and valve rod axis place; Half shutoff ring is semi-circular in valve pocket circumferential direction; When dish plate rotates, if the angle < A of dish plate and valve pocket cross section, the shutoff valve pocket in the dish plate periphery of axial plane side and described curved face contact; If the angle >=A of dish plate and valve pocket cross section, between the dish plate periphery of axial plane side and half shutoff ring or valve pocket inwall, form flow channels and open valve pocket; 0 ° of < A≤45 °; When the angle of dish plate and valve pocket cross section is non-vanishing, between the dish plate periphery and valve pocket inwall of axial plane opposite side, forms flow channels and open valve pocket.
2. highi degree of accuracy regulation disc valve as claimed in claim 1, is characterized in that: 0 ° of < A≤30 °.
3. highi degree of accuracy regulation disc valve as claimed in claim 1, is characterized in that: curved surface width on valve pocket axial direction is the widest in semiorbicular center, and at semiorbicular two ends, place is the narrowest.
4. highi degree of accuracy regulation disc valve as claimed in claim 1, is characterized in that: half shutoff ring and valve body are one.
5. highi degree of accuracy regulation disc valve as claimed in claim 1, is characterized in that: valve rod is through valve pocket, and its two ends are hubbed in the through hole on valve body, and dish plate is connected on valve rod.
6. highi degree of accuracy regulation disc valve as claimed in claim 5, it is characterized in that: dish plate is made up of two and half dish plates, half dish plate is fixed by screws on valve rod; Two and half dish plates with perpendicular to valve rod plane for symmetry plane symmetrical.
7. highi degree of accuracy regulation disc valve as claimed in claim 1, is characterized in that: valve body end face has screw hole.
8. highi degree of accuracy regulation disc valve as claimed in claim 1, is characterized in that: valve body end face has the groove for embedding sealing O type circle.
9. highi degree of accuracy regulation disc valve as claimed in claim 1, is characterized in that: with dish Board position graduation indication on valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510239052.9A CN104806773B (en) | 2015-05-12 | 2015-05-12 | High-precision regulation disc valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510239052.9A CN104806773B (en) | 2015-05-12 | 2015-05-12 | High-precision regulation disc valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104806773A true CN104806773A (en) | 2015-07-29 |
| CN104806773B CN104806773B (en) | 2018-01-26 |
Family
ID=53691861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510239052.9A Active CN104806773B (en) | 2015-05-12 | 2015-05-12 | High-precision regulation disc valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806773B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642607A (en) * | 2015-11-02 | 2017-05-10 | 成都捷本科技有限公司 | Linear control method for split multi-blade regulating air valve |
| CN107906213A (en) * | 2017-12-18 | 2018-04-13 | 湖南省力宇燃气动力有限公司 | Gas valve and gas engine |
| CN112413144A (en) * | 2020-11-20 | 2021-02-26 | 无锡锡州机械有限公司 | Gas flow adjusting device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2090905U (en) * | 1991-01-11 | 1991-12-18 | 李贤� | Self-pressing clamp type butterfly valve |
| CN2155474Y (en) * | 1993-02-18 | 1994-02-09 | 孙雅萍 | Anti-corrosion butterfly valve |
| KR20070039630A (en) * | 2005-10-10 | 2007-04-13 | 양세정 | Butterfly valve |
| CN102330833A (en) * | 2011-08-03 | 2012-01-25 | 江苏欧标有限公司 | Executing mechanism of gas butterfly valve |
| CN102748518A (en) * | 2012-07-12 | 2012-10-24 | 杨元亭 | Clamping butterfly valve body |
| CN204628593U (en) * | 2015-05-12 | 2015-09-09 | 江苏欧标有限公司 | Highi degree of accuracy regulation disc valve |
-
2015
- 2015-05-12 CN CN201510239052.9A patent/CN104806773B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2090905U (en) * | 1991-01-11 | 1991-12-18 | 李贤� | Self-pressing clamp type butterfly valve |
| CN2155474Y (en) * | 1993-02-18 | 1994-02-09 | 孙雅萍 | Anti-corrosion butterfly valve |
| KR20070039630A (en) * | 2005-10-10 | 2007-04-13 | 양세정 | Butterfly valve |
| CN102330833A (en) * | 2011-08-03 | 2012-01-25 | 江苏欧标有限公司 | Executing mechanism of gas butterfly valve |
| CN102748518A (en) * | 2012-07-12 | 2012-10-24 | 杨元亭 | Clamping butterfly valve body |
| CN204628593U (en) * | 2015-05-12 | 2015-09-09 | 江苏欧标有限公司 | Highi degree of accuracy regulation disc valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642607A (en) * | 2015-11-02 | 2017-05-10 | 成都捷本科技有限公司 | Linear control method for split multi-blade regulating air valve |
| CN107906213A (en) * | 2017-12-18 | 2018-04-13 | 湖南省力宇燃气动力有限公司 | Gas valve and gas engine |
| CN112413144A (en) * | 2020-11-20 | 2021-02-26 | 无锡锡州机械有限公司 | Gas flow adjusting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104806773B (en) | 2018-01-26 |
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