CN205745345U - Positive cone three-eccentric-butterfly-valve - Google Patents
Positive cone three-eccentric-butterfly-valve Download PDFInfo
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- CN205745345U CN205745345U CN201620557256.7U CN201620557256U CN205745345U CN 205745345 U CN205745345 U CN 205745345U CN 201620557256 U CN201620557256 U CN 201620557256U CN 205745345 U CN205745345 U CN 205745345U
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- valve
- eccentric
- butterfly
- cone
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Abstract
This utility model discloses the design of a kind of positive cone three-eccentric-butterfly-valve, fabrication scheme, and positive cone three-eccentric-butterfly-valve surmounts traditional oblique cone three-eccentric-butterfly-valve based on tilting conical valve seat sealing system in terms of manufacturability, large-scale production adaptability and economy comprehensively.The foundation characteristic of this positive cone three-eccentric-butterfly-valve is that valve seat cone is just put, the most just putting valve seat cone center (4) to overlap with pipe centerline (3), the structure of positive cone three-eccentric-butterfly-valve, in addition to this foundation characteristic is just being put in valve seat taper, also to include three eccentric conditions: a) distance of first eccentric (E1): butterfly plate rotating shaft center of rotation (1) opposing sealing surfaces is eccentric；B) distance of second eccentric (E2): butterfly plate rotating shaft center of rotation (1) relative duct size centrage (3) is eccentric；C) positive cone three eccentricity (E3): the angle of sealing surface relative duct size vertical direction cross section is eccentric.
Description
Technical field
This utility model relates to valve design, manufactures a kind of butterfly valve in field, especially a kind of positive cone three-eccentric-butterfly-valve.
Background technology
Nineteen sixty Germany's karr. Adams (KarlAdams) proposes, and butterfly valve has cut-out (Isolation), regulation simultaneously
(Throttling) and 3 kinds of functions of non-return (Check), and in 1966 with " tilting conical valve seat sealing system "
(Theinclinedconicalseatsealingsystem) (Fig. 1) runs after fame and have registered patent, and this is once weighing of butterfly valve technology
Big progress.Within 1967, on " international chemical industry exhibition " (CHEMA) that Frankfort is held, put on display according to " tilting cone valve
Seat sealing system " three eccentricity design (Tripleeccentricde2sign) butterfly valve, the sealing property of this novel butterfly valve is big
For improving, quickly for middle high-pressure tubing.
The appearance of tilting conical valve seat sealing system makes butterfly valve obtain the transformation to " moment of torsion sealing " from " sealing structure ".?
The process conditions that butterfly valve may be only available for low pressure, seal request is the tightest of sealing structure before this, and it is promoted to what moment of torsion sealed
Three-eccentric-butterfly-valve can allow butterfly valve be used in high temperature (up to 700 DEG C), high pressure (current CLASS2500, PN42MPa) High Pressure Difference,
The tight severe service sealing (metal hard-sealing zero leakage can be reached).Compared with other kinds of valve, the butterfly of identical bore
Its weight of valve is the 30%～50% of other kind valve weight, and only for low materials consumption rate, butterfly valve just has the hugest
Big cost advantage.
The feature of traditional three-eccentric-butterfly-valve based on tilting conical valve seat sealing system maximum is that valve seat cone is tilting the most tilting
There is the angle of oblique cone three eccentricity (BE3) between valve seat cone center (B4) and pipe centerline (3), see Fig. 1.
The manufacturability of tradition oblique cone three-eccentric-butterfly-valve, sums up to get up can be summarized as: " oblique cone is tiltedly processed ".
The oblique cone valve seat of tradition oblique cone three-eccentric-butterfly-valve adds man-hour, it is desirable to tilting valve seat cone center (B4) must revolve with board
Turn center (B8) concentric, between board (B10) and oblique cone valve seat (B6), be accomplished by an installation fixture being grade bar (B7)
Correct tilting cone, see Fig. 3.Due to the interference of this grade bar, tilting valve seat cone center is concentric the most outstanding with board center of rotation
For difficulty, add the error of fixture itself and the accumulation of alignment error, just allow the dimensional accuracy and position that oblique cone valve seat processes
Precision becomes to be difficult to ensure that.
Oblique cone valve seat is processed as interrupted cut, no matter is grinding or turning in the course of processing, and cutter is produced not by workpiece
Evitable interval is impacted, and the sealing cone of oblique cone valve seat is finally obtained high-precision surface quality and brings puzzlement.
At present, the three-eccentric-butterfly-valve of commercial Application, it is all based on the oblique cone structure of tilting conical valve seat sealing system method.
That day that tilting conical valve seat sealing system is born rises and just people has been brought " tiltedly " road, tilting cone valve
Seat this method of sealing system is because of the manufacturing process difficulty of its superelevation and process costs so that having spent from invention to sizable application will
Nearly five ten years, along with high precision apparatus and technological development, three-eccentric-butterfly-valve just reaches the rule of relative technical maturity till now
Mould popularization and application, but also high processing cost cannot be reduced.
Utility model content
For the problem that tradition oblique cone three-eccentric-butterfly-valve manufacturing process difficulty is high and process costs is high, study through me,
Invent positive cone three-eccentric-butterfly-valve.
Positive cone three-eccentric-butterfly-valve maximum is characterized as that valve seat cone is just being put and is the most just putting valve seat cone center (4) and pipe centerline (3)
Overlap, see Fig. 2.
The butterfly plate assembly of positive cone three-eccentric-butterfly-valve moves at 0～90 corner stroke section, space with positive conical valve base
Can accomplish that track whole process, without interfering, applies Solidworks software system to be verified in person completely.
The structure of positive cone three-eccentric-butterfly-valve, in addition to valve seat cone is just putting this foundation characteristic, also to include three eccentric bars
Part:
A) distance of first eccentric (E1): butterfly plate assembly rotating shaft center of rotation (1) opposing sealing surfaces is eccentric
B) distance of second eccentric (E2): butterfly plate assembly rotating shaft center of rotation (1) relative duct size centrage (3) is eccentric
C) positive cone three eccentricity (E3): the angle of sealing surface relative duct size vertical direction cross section is eccentric
Positive cone three-eccentric-butterfly-valve is on the premise of determining holding " moment of torsion sealing " feature and not increasing material consumption, greatly
Reduce manufacturing process difficulty, improve production efficiency, effectively reduce production technology cost, be effectively improved different batches part
Interchangeability.
The manufacturability of positive cone three-eccentric-butterfly-valve, sums up to get up can be summarized as: " positive cone is just processed ".
When the positive conical valve base of positive cone three-eccentric-butterfly-valve of the present utility model is processed, positive conical valve base is directly mounted at board, just
Put valve seat cone center (4) and can easily reach concentric with board center of rotation (B8), it is ensured that the machining accuracy of valve seat, same to time
Save a large amount of clamping workpiece, prover time, see Fig. 4.
The valve seat of same size, positive conical valve base (6) processing with oblique cone valve seat (B6) processing compare, positive conical valve base process cutter
Tool stroke declines more than 50%, it means that the raising of working (machining) efficiency.
The positive conical valve base processing of positive cone three-eccentric-butterfly-valve, the rotary system being made up of board, centering member and positive conical valve base, nothing
Need trim can reach center of gravity to align, it is to avoid the vibrations that deviation of gravity center center of rotation produces, the sealing cone of positive conical valve base can
To obtain more preferable surface quality, simultaneously can have higher board rotating speed, this also means that carrying of working (machining) efficiency and quality
High.
In sum, no matter positive cone three-eccentric-butterfly-valve is manufacturability, large-scale production adaptability or economy surpasses the most comprehensively
The most traditional oblique cone three-eccentric-butterfly-valve, positive cone three-eccentric-butterfly-valve can substitute traditional oblique cone three-eccentric-butterfly-valve completely.
Accompanying drawing explanation
Fig. 1: the oblique cone three-eccentric-butterfly-valve schematic diagram in background technology
Wherein E1 the 1st is eccentric；E2 the 2nd is eccentric；BE3 oblique cone the 3rd is eccentric；1 butterfly plate assembly rotating shaft center of rotation；
2 rotating shaft direction of rotation；3 pipeline center；B4 tilting valve seat cone center；The tilting valve seat of B5 is bored；B12 oblique cone butterfly plate
Fig. 2: positive cone three-eccentric-butterfly-valve schematic diagram of the present utility model
Wherein E1 the 1st is eccentric；E2 the 2nd is eccentric；E3 positive cone the 3rd is eccentric；1 butterfly plate assembly rotating shaft center of rotation；
2 rotating shaft direction of rotation；3 pipeline center；4 are just putting valve seat cone center；5 are just putting valve seat cone；6 positive conical valve bases；8 just
Cone butterfly plate assembly；9 rotating shafts
Fig. 3: the oblique cone valve seat manuscript in background technology
Wherein BL oblique cone valve seat process tool stroke；B11 board direction of rotation；B10 board；B9 board rotates
Central spacer；B8 board center of rotation；B7 grade bar；B6 oblique cone valve seat；The tilting valve seat of B5 is bored；B4 slanting set valve
Zuo Zhui center
Fig. 4: positive conical valve base manuscript of the present utility model
Wherein L positive conical valve base process tool stroke；B11 board direction of rotation；B10 board；B9 board rotates
Center；B8 board center of rotation keeper；7 valve seat centering seam dishes；6 positive conical valve bases；5 are just putting valve seat cone；4—
Just putting valve seat cone center
Fig. 5: positive cone three-eccentric-butterfly-valve structural design drawing of the present utility model
Wherein 6 positive conical valve base；8 positive cone butterfly plate assemblies；8a butterfly plate body；8b butterfly plate trim ring；8c positive cone butterfly plate
Sealing ring；8d butterfly plate sealing gasket；8e trundle；9 rotating shafts；10 bottom end covers；11 bottom end cover hexagon socket head cap screws；12—
Bottom end cover sealing gasket；13 axle head thrust rings；14 axle head hexagon socket head cap screws；15 trim ring hexagon socket head cap screws；16 axle sleeves；
17 airtight and watertight padding pads；18 airtight and watertight paddings；19 lattice south；20 lattice south pressing plates；21 supports；22 keys
Fig. 6: the three-dimensional section view of positive cone three-eccentric-butterfly-valve of the present utility model
Wherein 6-1, positive cone three-eccentric-butterfly-valve fully open position；6-2, positive cone three-eccentric-butterfly-valve positive cone butterfly plate 45 position；6-3,
Positive cone three-eccentric-butterfly-valve positive cone butterfly plate 10 position；6-4, positive cone three-eccentric-butterfly-valve positive cone butterfly plate 5 position；6-5, positive cone three eccentricity
Butterfly valve closed positions.
Detailed description of the invention
Design positive cone three-eccentric-butterfly-valve of the present utility model with reference to Fig. 2, fabrication scheme is described in further detail.
Foundation characteristic of the present utility model is that valve seat cone is just put, and the manifestation mode directly perceived that valve seat cone is just being put is exactly in valve seat cone
The heart (4) overlaps with pipe centerline (3).
Valve seat cone is just being put this foundation characteristic and is being represent this utility model in manufacturability, large-scale production adaptability and economy
On there is the essential meaning of milestone formula progress.
The structure of positive cone three-eccentric-butterfly-valve, in addition to valve seat cone is just putting this foundation characteristic, also to include three eccentric bars
Part:
A) distance of first eccentric (E1): butterfly plate assembly rotating shaft center of rotation (1) opposing sealing surfaces is eccentric
B) distance of second eccentric (E2): butterfly plate assembly rotating shaft center of rotation (1) relative duct size centrage (3) is eccentric
C) positive cone three eccentricity (E3): the angle of sealing surface relative duct size vertical direction cross section is eccentric
Only it is provided simultaneously with valve seat cone just putting and above three bias condition could constitute complete positive cone three eccentricity butterfly
The design of valve, fabrication scheme.
Constitute positive cone three-eccentric-butterfly-valve and have following parts, see Fig. 5: positive conical valve base (6)；Positive cone butterfly plate assembly (8)；Rotating shaft
(9)；Bottom end cover (10)；Bottom end cover hexagon socket head cap screw (11)；Bottom end cover sealing gasket (12)；Axle head thrust ring (13)；In axle head six
Corner bolt (14)；Trim ring hexagon socket head cap screw (15)；Axle sleeve (16)；Airtight and watertight padding pad (17)；Airtight and watertight padding (18)；Lattice south (19)；
Lattice south pressing plate (20)；Support (21)；Key (22)
Positive cone butterfly plate assembly (8) is made up of following part: butterfly plate body (8a)；Butterfly plate trim ring (8b)；Positive cone butterfly plate sealing ring
(8c)；Butterfly plate sealing gasket (8d)；Butterfly plate trundle (8e)
The operation principle of positive cone three-eccentric-butterfly-valve:
The output moment of torsion of rotary motion valve door drive mechanism, passes to rotating shaft (9) again by butterfly plate trundle by key (22)
(8e) moment of torsion passes to positive cone butterfly plate assembly (8), drives positive cone butterfly plate assembly to rotate.Positive cone butterfly plate assembly turns along clockwise direction
The conical surface of just putting of the outer rim conical surface and positive conical valve base (6) equal angular that move positive cone butterfly plate sealing ring (8c) overlaps, and completes valve
Closing function.
After valve closing, the output moment of torsion of rotary motion valve door drive mechanism makes positive cone butterfly plate sealing ring (8c) extrude positive cone valve
Seat (6) equal angular conical surface obtains enough sealing intensities, constitutes positive cone three-eccentric-butterfly-valve moment of torsion sealing function.
From valve-closed position, rotate positive cone butterfly plate assembly (8), positive cone butterfly plate assembly and positive conical valve base in the counterclockwise direction
Just departing from directly contact in starting point, the outer rim conical surface of positive cone butterfly plate sealing ring (8c) and positive conical valve base (6) equal angular are just putting cone
Face, to disengage as starting point, turns over 0～90 corner stroke section, completes the open function of valve.
Valve opening and the 0 of closing process～90 corner stroke section, other position any in addition to 0 closed position,
The most do not produce between positive cone butterfly plate assembly (8) with positive conical valve base (6) and contact, collide and interfere.
The three-dimensional section view of positive cone three-eccentric-butterfly-valve, is shown in Fig. 6.Show sequentially into 6-5 from 6-1 is positive cone three-eccentric-butterfly-valve
By the overall process reaching pass.By Fig. 6 it is known that positive cone three-eccentric-butterfly-valve is achieved in three dimensional structure mode.
Claims (6)
1. a positive cone three-eccentric-butterfly-valve, it is characterised in that:
Valve seat cone just putting the most just putting valve seat cone center (4) overlap with pipe centerline (3)；
The structure of positive cone three-eccentric-butterfly-valve, in addition to valve seat cone is just putting this foundation characteristic, also to include three eccentric conditions:
A) distance of first eccentric (E1): butterfly plate assembly rotating shaft center of rotation (1) opposing sealing surfaces is eccentric
B) distance of second eccentric (E2): butterfly plate assembly rotating shaft center of rotation (1) relative duct size centrage (3) is eccentric
C) positive cone three eccentricity (E3): the angle of sealing surface relative duct size vertical direction cross section is eccentric.
Positive cone three-eccentric-butterfly-valve the most according to claim 1, it is characterised in that constituting positive cone three-eccentric-butterfly-valve has following zero
Parts: positive conical valve base (6)；Positive cone butterfly plate assembly (8)；Rotating shaft (9)；Bottom end cover (10)；Bottom end cover hexagon socket head cap screw (11)；Lower end
Sealing cushion for cover (12)；Axle head thrust ring (13)；Axle head hexagon socket head cap screw (14)；Trim ring hexagon socket head cap screw (15)；Axle sleeve (16)；Close
Packing backing strap (17)；Airtight and watertight padding (18)；Lattice south (19)；Lattice south pressing plate (20)；Support (21)；Key (22)；
Positive cone butterfly plate assembly (8) is made up of following part: butterfly plate body (8a)；Butterfly plate trim ring (8b)；Positive cone butterfly plate sealing ring (8c)；
Butterfly plate sealing gasket (8d)；Butterfly plate trundle (8e).
Positive cone three-eccentric-butterfly-valve the most according to claim 2, it is characterised in that the output of rotary motion valve door drive mechanism is turned round
Square, passes to rotating shaft (9) again by butterfly plate trundle (8e) by key (22), and moment of torsion passes to positive cone butterfly plate assembly (8), drives
Positive cone butterfly plate assembly rotates, along clockwise direction positive cone butterfly plate assembly turn to the outer rim conical surface of positive cone butterfly plate sealing ring (8c) with
Positive conical valve base (6) equal angular is just being put the conical surface and is being overlapped, and completes the closing function of valve.
Positive cone three-eccentric-butterfly-valve the most according to claim 3, it is characterised in that after valve closing, angular travel valve drives
The sealing that the output moment of torsion of mechanism makes positive cone butterfly plate sealing ring (8c) extrude the acquisition of positive conical valve base (6) the equal angular conical surface enough is strong
Degree, constitutes positive cone three-eccentric-butterfly-valve moment of torsion sealing function.
Positive cone three-eccentric-butterfly-valve the most according to claim 4, it is characterised in that from valve-closed position, along side counterclockwise
To rotating positive cone butterfly plate assembly (8), positive cone butterfly plate assembly directly contacts in starting point just disengaging with positive conical valve base (6), positive cone butterfly plate
The outer rim conical surface of sealing ring (8c) and positive conical valve base equal angular are just putting the conical surface to disengage as starting point, turn over 0～90 turn
Angle stroke section, completes the open function of valve.
Positive cone three-eccentric-butterfly-valve the most according to claim 5, it is characterised in that positive cone three-eccentric-butterfly-valve opened and closed
0～90 corner stroke section of journey, other position any in addition to 0 closed position, positive cone butterfly plate assembly (8) and positive cone valve
The most do not produce contact between seat (6), collide and interfere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620557256.7U CN205745345U (en) | 2016-06-12 | 2016-06-12 | Positive cone three-eccentric-butterfly-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620557256.7U CN205745345U (en) | 2016-06-12 | 2016-06-12 | Positive cone three-eccentric-butterfly-valve |
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| Publication Number | Publication Date |
|---|---|
| CN205745345U true CN205745345U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620557256.7U Expired - Fee Related CN205745345U (en) | 2016-06-12 | 2016-06-12 | Positive cone three-eccentric-butterfly-valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763822A (en) * | 2016-12-14 | 2017-05-31 | 重庆理工大学 | A kind of four eccentric-butterfly-valves |
| CN107489775A (en) * | 2016-06-12 | 2017-12-19 | 方敏 | Just putting conical valve seat sealing system |
-
2016
- 2016-06-12 CN CN201620557256.7U patent/CN205745345U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489775A (en) * | 2016-06-12 | 2017-12-19 | 方敏 | Just putting conical valve seat sealing system |
| CN106763822A (en) * | 2016-12-14 | 2017-05-31 | 重庆理工大学 | A kind of four eccentric-butterfly-valves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 |