CN104832660A - Bi-directional soft seal butterfly valve opened and closed through screw - Google Patents
Bi-directional soft seal butterfly valve opened and closed through screw Download PDFInfo
- Publication number
- CN104832660A CN104832660A CN201510153640.0A CN201510153640A CN104832660A CN 104832660 A CN104832660 A CN 104832660A CN 201510153640 A CN201510153640 A CN 201510153640A CN 104832660 A CN104832660 A CN 104832660A
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- Prior art keywords
- valve
- valve plate
- screw rod
- plate
- screw
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 10
- 210000003734 kidney Anatomy 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 8
- 210000004907 gland Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F16K1/221—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 specially adapted operating means therefor
-
- 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
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a bi-directional soft seal butterfly valve opened and closed through a screw. The butterfly valve comprises a hand wheel, a copper nut, the screw, a valve body bracket, a valve body, a valve body sealing seat, a valve plate sealing ring, a valve plate and valve shafts; when the valve plate is in a closed state, the plane, where the valve plate is positioned, and the screw are eccentric; a valve plate rocking handle is fixedly connected with the center of the valve plate; the screw and the valve plate rocking handle are connected through a pin shaft; the two valve shafts are respectively positioned on the two sides of the valve plate and form the angles alpha with the plane, where the valve plate is positioned when the valve plate is in the closed state; one valve shaft is positioned above the horizontal center axis of the valve plate; the other valve shaft is positioned below the horizontal center axis of the valve plate; and the eccentricity of the two valve shafts and the horizontal center axis of the valve plate in the closed state is b. The butterfly valve has the benefits as follows: the opening and closing are carried out through the screw, the opening and closing time is short, the opening and closing torque is less, and opening and closing are obvious; compared with worm gear case processing, the processing of the butterfly valve is simpler, the production cost is low, clamping during opening and closing does not occur and the valve plate can be opened fully.
Description
Technical field
The present invention relates to butterfly valve, particularly relate to a kind of screw rod and open and close two-way soft sealing butterfly valve.
Background technique
Butterfly valve is Flap valve again, it is the simple modulating valve of a kind of structure, can be used for the switch control rule of low pressure pipeline medium, refer to that closure member (flap, valve plate or butterfly plate) is disk, rotate a kind of valve reaching open and close around valve shaft, valve can be used for the flowing controlling all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.On pipeline, main rising is cut off and throttling action.Butterfly valve open-shut device is a discoidal butterfly plate, rotates in valve body around the axis of himself, thus reaches the object opening and closing or regulate.Form primarily of valve body, valve rod, butterfly plate and seal ring.Valve body is cylindrical, and axial length is short, built-in butterfly plate.Butterfly valve standard-sized sheet is normally less than 90 ° to complete shut-down, and current butterfly valve generally adopts worm and gear to drive, and upper and lower axle and valve plate generally adopt taper pin or key to be connected.Valve plate opens and closes valve around the rotation of 90 degree, upper and lower axle.It is slow all unavoidably to there is opening and closing time in this kind of butterfly valve, and open and close torque is large, and open and close is not obvious, can not open and put in place, Worm gear case processed complex, the problem that cost of production is high.
Summary of the invention
The technical problem to be solved in the present invention is that existing butterfly valve adopts worm and gear to drive, complex structure, cost of production are high, butterfly valve plate can not be opened and put in place, opening and closing time is slow, open and close torque is large, problem that open and close is not obvious etc., provides a kind of screw rod that a kind of opening and closing time is fast, open and close torque is little, open and close is obvious, processing is simple, cost of production is low to open and close two-way soft sealing butterfly valve for this reason.
Technological scheme of the present invention is: a kind of screw rod opens and closes two-way soft sealing butterfly valve, it comprises handwheel, copper nut, valve body support, screw rod, valve body, valve seal seat, valve plate seal ring, valve plate and valve shaft, place plane and screw rod bias when described valve plate closes, described valve plate center is connected with valve plate rocking handle, described screw rod and valve plate rocking handle pass through pinned connection, described valve shaft has 2, lay respectively at valve plate both sides and become α angle with the valve plate place plane of closed state, one of them valve shaft is positioned on valve plate horizontal median axis, another valve shaft is positioned under valve plate horizontal median axis, offset between 2 valve shafts and valve plate horizontal median axis is all b.
The improvement of such scheme is that described valve plate rocking handle is provided with kidney slot, and described bearing pin fits in kidney slot, drives bearing pin to move horizontally in kidney slot when screw rod moves up and down.
The further improvement of such scheme is that described bearing pin side is plugged with cotter pin.
The further improvement of such scheme is that described valve plate seal ring is fixed on valve plate by pressing plate and bridge screw.
Valve shaft described in such scheme is connected with end cap away from the side of valve plate by bolt of cover and end bracket enclosed circle, is coated with axle sleeve, is connected between described valve shaft and valve plate by key between described valve shaft and valve interior wall.
The seat of valve seal described in such scheme is stainless steel, and valve plate seal ring is quality of rubber materials.
The invention has the beneficial effects as follows and adopt screw rod to open and close, opening and closing time is fast, and open and close torque is little, open and close is obvious, compared with processing with Worm gear case, processing is simple, and cost of production is low, the more important thing is that valve shaft and axle sleeve are arranged in valve plate both sides, α angle is become with valve plate place plane time closed, can not be stuck during open and close, be b with the upper and lower offset of valve body horizontal median axis, can an angle of 90 degrees be opened to, namely achieve valve plate and can open and put in place.Valve plate rocking handle has opened kidney slot, and bearing pin can move around in kidney slot, can not be stuck in open and close process, namely achieves valve plate and opens flexibly.
Accompanying drawing explanation
Fig. 1 is the main cross-sectional schematic of the present invention;
Fig. 2 is that the present invention bows cross-sectional schematic;
Fig. 3 is that schematic diagram is looked on a left side of the present invention;
Fig. 4 is standard-sized sheet schematic diagram of the present invention;
Fig. 5 is sealing place enlarged diagram in Fig. 2 of the present invention;
In figure, 1, handwheel, 2, copper nut pressing plate, 3, follower bolt, 4, only head screw, 5, copper nut, 6 screw rods, 7, valve body support, 8, back-up ring, 9, bolt for retainer, 10, stuffing box gland O type circle, 11, stuffing box gland, 12, valve body, 13, valve seal seat, 14, valve plate seal ring, 15, bridge screw, 16, pressing plate, 17, valve plate, 18, end cap, 19, bolt of cover, 20, end cap O type circle, 21, axle sleeve, 22, axle sleeve O type circle, 23, valve shaft, 24, key, 25, cotter pin, 26, bearing pin, 27, valve plate rocking handle.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Fig. 1-Fig. 3 and Fig. 5, the present invention includes handwheel 1, copper nut 5, valve body support 7, screw rod 6, valve body 12, valve seal seat 13, valve plate seal ring 14, valve plate 17 and valve shaft 23, wherein copper nut is fixed on valve body support by copper nut pressing plate 2, pass through follower bolt 3 between copper nut and copper nut pressing plate and stop head screw 4 affixed, it can be that integrally casting is shaping that the bottom interior wall of valve body support is provided with back-up ring 8 and bolt for retainer 9 valve body support and valve body.Stuffing box gland O type circle 10 and stuffing box gland 11 is filled with in valve body support below back-up ring, place plane and screw rod bias when described valve plate closes, described valve plate center is connected with valve plate rocking handle 27, described screw rod is connected by bearing pin 26 with valve plate rocking handle, as shown in Figure 2, described valve shaft has 2, and lay respectively at valve plate both sides and become α angle with the valve plate place plane of closed state, the large I at α angle sets as required.As shown in Figure 3, one of them valve shaft is positioned on valve plate horizontal median axis, and another valve shaft is positioned under valve plate horizontal median axis, and the offset between 2 valve shafts and the valve plate horizontal median axis of closed state is all that the large I of b, b sets as required.
Its working principle is as follows:
Valve plate is opened: as shown in Figure 4, handwheel 1 turns clockwise, screw rod 6 drives valve plate rocking handle 27 to move upward by bearing pin 26, valve plate rocking handle 27 moves upward and drives valve plate 17 to rotate to opening direction, valve plate 17 rotates to opening direction around valve shaft 23, valve shaft 23 becomes α angle with the horizontal median axis of place plane under valve plate 17 closed condition or valve plate, when ensure that unlatching, valve plate seal ring 14 can not be stuck in the process of continuous extruding valve body sealing seat 13, open gradually along with screw rod 6 rises, due to valve shaft 23 and the upper and lower eccentric b of valve body 12 horizontal axis horizontal median axis, do not collide with the valve shaft 23 of both sides when guaranteeing that valve plate 17 is opened to 90 degree.This just completes whole valve plate 17 opening process.
Valve plate closing process:
In like manner, handwheel 1 is rotated counterclockwise, screw rod 6 drives valve plate rocking handle 27 to move downward by bearing pin 26, valve plate rocking handle 27 moves downward and drives valve plate 17 to rotate to closing direction, valve plate 17 rotates to closing direction around valve shaft 23, because the α angle between valve shaft 23 and valve plate 17 horizontal median axis exists, during closedown, valve plate seal ring 14 can not be stuck in the process of extruding valve body sealing seat 13, valve plate declines gradually and drives valve plate rocking handle to rotate until valve plate is closed completely along with screw rod 6 bearing pin that declines, and this just completes whole valve plate 17 closing process.
Preference of the present invention is that valve plate rocking handle is provided with kidney slot, and described bearing pin fits in kidney slot, drives bearing pin to move horizontally in kidney slot when screw rod moves up and down.Avoiding problems screw rod in the process moved up and down and stuck between valve plate rocking handle, open flexibly.In order to ensure bearing pin level movement flexibly in kidney slot, cotter pin 25 can be plugged with in bearing pin side, the elasticity of bearing pin in kidney slot can be regulated as required.
In order to ensure the reliable sealing between valve plate seal ring and valve seal seat, valve plate seal ring can be fixed on valve plate by pressing plate 16 and bridge screw 15, valve plate seal ring is flexible material preferably rubber, such valve plate seal ring is soft seal all the time between valve seal seat, valve plate seal ring can not cause seal failure due to old damage of rubbing for a long time, because the fixing spacing of pressing plate also can not sideslip position, cause seal failure.Valve seal seat can be stainless steel or other rigid, and itself and valve plate seal ring one are firm softly realizes reliable sealing.
Particularly, valve shaft is connected with end cap 18 away from the side of valve plate by bolt of cover 19 and end bracket enclosed circle 20, be coated with axle sleeve 21 between described valve shaft and valve interior wall, be provided with axle sleeve O type circle 22 between axle sleeve and valve shaft, connected by key 24 between described valve shaft and valve plate.
Claims (6)
1. a screw rod opens and closes two-way soft sealing butterfly valve, it comprises handwheel, copper nut, screw rod, valve body support, valve body, valve seal seat, valve plate seal ring, valve plate and valve shaft, place plane and screw rod bias when it is characterized in that described valve plate closes, described valve plate center is connected with valve plate rocking handle, described screw rod and valve plate rocking handle pass through pinned connection, described valve shaft has 2, lay respectively at valve plate both sides and become α angle with the valve plate place plane of closed state, one of them valve shaft is positioned on valve plate horizontal median axis, another valve shaft is positioned under valve plate horizontal median axis, offset between 2 valve shafts and the valve plate horizontal median axis of closed state is all b.
2. a kind of screw rod as claimed in claim 1 opens and closes two-way soft sealing butterfly valve, and it is characterized in that described valve plate rocking handle is provided with kidney slot, described bearing pin fits in kidney slot, drives bearing pin to move horizontally in kidney slot when screw rod moves up and down.
3. a kind of screw rod as claimed in claim 2 opens and closes two-way soft sealing butterfly valve, it is characterized in that described bearing pin side is plugged with cotter pin.
4. a kind of screw rod as claimed in claim 3 opens and closes two-way soft sealing butterfly valve, it is characterized in that described valve plate seal ring is fixed on valve plate by pressing plate and bridge screw.
5. a kind of screw rod as claimed in claim 4 opens and closes two-way soft sealing butterfly valve, it is characterized in that described valve shaft is connected with end cap away from the side of valve plate by bolt of cover and end bracket enclosed circle, be coated with axle sleeve between described valve shaft and valve interior wall, connected by key between described valve shaft and valve plate.
6. a kind of screw rod as described in as arbitrary in claim 1-5 opens and closes two-way soft sealing butterfly valve, and it is characterized in that described valve seal seat is stainless steel, valve plate seal ring is quality of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510153640.0A CN104832660B (en) | 2015-04-02 | 2015-04-02 | A kind of two-way soft sealing butterfly valve of screw rod keying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510153640.0A CN104832660B (en) | 2015-04-02 | 2015-04-02 | A kind of two-way soft sealing butterfly valve of screw rod keying |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104832660A true CN104832660A (en) | 2015-08-12 |
| CN104832660B CN104832660B (en) | 2018-08-31 |
Family
ID=53810747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510153640.0A Active CN104832660B (en) | 2015-04-02 | 2015-04-02 | A kind of two-way soft sealing butterfly valve of screw rod keying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104832660B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351604A (en) * | 2015-11-27 | 2016-02-24 | 四川九天真空科技股份有限公司 | Opening structure and opening method of valve under large pressure difference |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2130994Y (en) * | 1992-07-06 | 1993-04-28 | 孟庆塘 | Driving device for opening or closing ball valve or butterfly valve |
| CN2218287Y (en) * | 1995-03-21 | 1996-01-24 | 长沙市阀门厂 | Metal tight sealed butterfly gate with inclined shaft |
| JP2002098241A (en) * | 2000-09-20 | 2002-04-05 | Kurimoto Ltd | Butterfly valve |
| CN2797795Y (en) * | 2005-03-21 | 2006-07-19 | 张南苑 | Central line oblique axis type butterfly valve |
| WO2007098083A1 (en) * | 2006-02-21 | 2007-08-30 | Ge Aviation Systems Llc | Low friction butterfly ring |
| CN203286015U (en) * | 2013-05-17 | 2013-11-13 | 张克东 | Oblique type valve |
-
2015
- 2015-04-02 CN CN201510153640.0A patent/CN104832660B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2130994Y (en) * | 1992-07-06 | 1993-04-28 | 孟庆塘 | Driving device for opening or closing ball valve or butterfly valve |
| CN2218287Y (en) * | 1995-03-21 | 1996-01-24 | 长沙市阀门厂 | Metal tight sealed butterfly gate with inclined shaft |
| JP2002098241A (en) * | 2000-09-20 | 2002-04-05 | Kurimoto Ltd | Butterfly valve |
| CN2797795Y (en) * | 2005-03-21 | 2006-07-19 | 张南苑 | Central line oblique axis type butterfly valve |
| WO2007098083A1 (en) * | 2006-02-21 | 2007-08-30 | Ge Aviation Systems Llc | Low friction butterfly ring |
| CN203286015U (en) * | 2013-05-17 | 2013-11-13 | 张克东 | Oblique type valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351604A (en) * | 2015-11-27 | 2016-02-24 | 四川九天真空科技股份有限公司 | Opening structure and opening method of valve under large pressure difference |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104832660B (en) | 2018-08-31 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A screw opening and closing bidirectional soft sealing butterfly valve Effective date of registration: 20231229 Granted publication date: 20180831 Pledgee: Industrial and Commercial Bank of China Tongling Baida Branch Pledgor: ANHUI TONGDU FLOW TECHNOLOGY Co.,Ltd. Registration number: Y2023980075609 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |