CN204387354U - Bidirectional flow is wear-resisting revolves Ball type butlerfly valve - Google Patents
Bidirectional flow is wear-resisting revolves Ball type butlerfly valve Download PDFInfo
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- CN204387354U CN204387354U CN201420786779.XU CN201420786779U CN204387354U CN 204387354 U CN204387354 U CN 204387354U CN 201420786779 U CN201420786779 U CN 201420786779U CN 204387354 U CN204387354 U CN 204387354U
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- butterfly plate
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Abstract
The utility model discloses that a kind of bidirectional flow is wear-resisting revolves Ball type butlerfly valve, comprise valve assembly and drive unit, valve assembly comprises valve body, spiral shape butterfly plate, is fixed in valve body and the valve seat, the axis eccentric valve shaft that be connected eccentric with spiral shape butterfly plate center line that are tightly connected with spiral shape butterfly plate, eccentric valve shaft is through spiral shape butterfly plate and be locked by taper pin, and be connected with valve seal, eccentric one end of valve shaft is connected with the output terminal of drive unit, and the other end is connected with valve seal; The surface of contact of valve seat and spiral shape butterfly plate is cambered surface hard sealing structure, is provided with soft seal circle between valve seat and spiral shape butterfly plate.The utility model adopts that a valve is dual-purpose, the two eccentric spiral shape butterfly plate structure of spaces compact and the side of having set up buffer function fill adjustable compound seal auxiliary structure, can reduce sealing surface wear, can play buffer function again, extend the working life of valve; After wearing and tearing, valve seat is changed quick and convenient, cost saving.
Description
Technical field
The utility model relates to butterfly valve, refers to particularly a kind ofly open and close as pipeline and regulate the bidirectional flow used wear-resistingly to revolve Ball type butlerfly valve.
Background technique
In the pressurized pipe systems of the industry fields such as Aero-Space, iron and steel, metallurgy, electric power, oil, petrochemical industry, chemical industry, tap water, papermaking, pharmacy, environmental protection, municipal administration, colliery, usually all butterfly valve can be used, for wet type or the dry media such as delivery industry water, amorphous powder, solid granulates body, slag, mine tailing, dense ore pulp, slag slurry, concrete slurry, paper pulp, mud, oil product.
But there is following deficiency in existing butterfly valve:
1, only adopt hard sealing structure in the side of runner, the sealing of two different direction can not be realized, limit the Applicable scope of this valve;
2, during medium bidirectional pressing, because valve seat and spool (butterfly plate) are all hard metals, very stiff and demanding sealing configuration leans on into sealing surface and is easily worn and is extruded loosening, and resistance to erosion and wearing and tearing, easily do not produce leakage, and the working life of valve is extremely short;
3, not easily change after the prooving of valve seat, the repair time is long, causes certain economic loss.
Summary of the invention
The purpose of this utility model is exactly to overcome the deficiency existing for prior art, provides an a kind of valve dual-purpose, reasonable in design and cost performance revolves Ball type butlerfly valve higher than the bidirectional flow of ball valve and butterfly valve is wear-resisting.
For achieving the above object, bidirectional flow designed by the utility model is wear-resisting revolves Ball type butlerfly valve, comprise the drive unit of valve assembly and control valve assembly switch, described valve assembly comprises the valve body that two side ends is provided with import and export, be positioned at the spiral shape butterfly plate of valve body, for the valve seat be tightly connected with spiral shape butterfly plate, and the eccentric valve shaft that axis is connected with spiral shape butterfly plate center line bias, described one end of eccentric valve shaft is connected with the output terminal of drive unit, described valve seat is fixed in valve body, its specialization is: described eccentric valve shaft is through spiral shape butterfly plate and be locked by taper pin, the other end of described eccentric valve shaft is connected with valve seal, the surface of contact of described valve seat and spiral shape butterfly plate is cambered surface hard sealing structure, and described valve seat is provided with the soft seal circle for being tightly connected with spiral shape butterfly plate.
In such scheme, described valve interior wall is provided with the staircase structural model for valve seat limit mounting, is provided with pendant collet between described valve seat and staircase structural model, and described pendant collet is fixed by screws on staircase structural model.Preferably, described valve seat is connected with valve seal by first " O " shape seal ring, is also provided with wear-resisting spacer between described valve seat and pendant collet.Like this, after the sealing surface wear of the cambered surface hard sealing structure of valve seat, directly can unclamp " pendant collet+wear-resisting spacer+screw " of side dress, quick-replaceable valve seat, wear-resisting spacer and first " O " shape seal ring, thus reduce the repair time, reduce economic loss.And, by setting up the soft or hard compound sealing structure of " pendant collet+wear-resisting spacer+screw ", sealing surface wear can be reduced, buffer function can be played again, prevent the hard sealing surface between spiral shape butterfly plate and valve seat from being washed away, after hard sealing surface is washed, also can play the effect of emergency sealing, extend the working life of valve.
In such scheme, between described valve body and eccentric valve shaft, be provided with the selflubricating composite shaft sleeve for being tightly connected.Like this, can make eccentric valve shaft can not be stuck because impurity in pipeline enters, not need manual application of lubricant oil, prevent eccentric valve shaft locking, stuck phenomenon.
In such scheme, described valve body upper end is connected with the Gland of band stuffing box packing.Stuffing box packing is pressed in the mesopore of valve body by Gland, forms the external sealed above valve body.
In such scheme, described valve body bottom is fixedly connected with bottom flange, is provided with second " O " shape seal ring between described bottom flange and valve body.
In such scheme, described eccentric valve shaft is connected by flat key with drive unit.Like this, spiral shape butterfly plate, along with eccentric valve shaft rotary work within the scope of 90 °, operates eccentric valve shaft by drive unit, realizes the Kai Heguan to spiral shape butterfly plate and valve seat, thus the switch of control valve track media.
In such scheme, described drive unit is fixedly mounted on valve body by support.
The beneficial effects of the utility model are:
The similar ball valve of spiral shape butterfly plate sealing surface, be equivalent to spheroid two ends and directly excise remaining part, and be the sealing of two different direction, achieve the two way sealed of revolving the positive and negative runner direction of Ball type butlerfly valve, make to revolve Ball type butlerfly valve can realize forward installation and oppositely install, spaces compact, a valve is dual-purpose, expands the Applicable scope of revolving Ball type butlerfly valve.
By the central position relativity shift of eccentric valve shaft and valve body (spiral shape butterfly plate), valve seat adopts staircase structural model spacing fixing, after spiral shape butterfly plate is opened, just depart from valve seat instantaneously, in whole opening and closing process, spiral shape butterfly plate and valve seat depart from all the time, without to mill phenomenon, add working life.
Adopt that a valve is dual-purpose, the two eccentric spiral shape butterfly plate structure of spaces compact and set up side dress " pendant collet+wear-resisting spacer+screw " adjustable compound seal auxiliary structure of buffer function, compare with butterfly valve with existing ball valve, sealing surface wear can be reduced, buffer function can be played again, prevent the hard sealing surface between spiral shape butterfly plate and valve seat from being washed away, after hard sealing surface is washed, also can play the effect of emergency sealing, extend the working life of valve.After wearing and tearing, valve seat and seal ring are changed quick and convenient, thus reduce the repair time, and reduce economic loss, cost saving, allows engineering carry out smoothly.Show through experiment test, reach the usage requirement of design completely.
Accompanying drawing explanation
Fig. 1 is the wear-resisting structural representation revolving Ball type butlerfly valve of bidirectional flow.
Fig. 2 is the wear-resisting sectional structure schematic diagram revolving Ball type butlerfly valve of bidirectional flow.
Fig. 3 is the A-A sectional structure schematic diagram in Fig. 2.
Fig. 4 is the structure for amplifying schematic diagram of the B in Fig. 3.
Fig. 5 is the wear-resisting structural representation revolving the valve body opening state of Ball type butlerfly valve of bidirectional flow.
Fig. 6 is the wear-resisting structural representation revolving the sealing of Ball type butlerfly valve positive flow of bidirectional flow.
Fig. 7 is the wear-resisting structural representation revolving the sealing of Ball type butlerfly valve reverse flow of bidirectional flow.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Bidirectional flow shown in Fig. 1,2 is wear-resisting revolves Ball type butlerfly valve, comprise the drive unit 1 of valve assembly and control valve assembly switch, valve assembly comprise two side ends be provided with import and export valve body 2, be positioned at the spiral shape butterfly plate 3 of valve body 2, the valve seat 5 for being tightly connected with spiral shape butterfly plate 3, and the eccentric valve shaft 4 that axis is connected with spiral shape butterfly plate 3 center line bias.Eccentric valve shaft 4 is connected by flat key 11 with drive unit 1.Drive unit 1 is fixedly mounted on valve body 2 by support 12.
As shown in Figure 2, one end of eccentric valve shaft 4 is connected with the output terminal of drive unit 1, and eccentric valve shaft 4 is through spiral shape butterfly plate 3 and be locked by taper pin 6, and the other end and the valve body 2 of eccentric valve shaft 4 are tightly connected.Valve seat 5 is tightly connected by first " O " shape seal ring 18 and valve body 2, is also provided with wear-resisting spacer 17 between valve seat 5 and pendant collet 15.The selflubricating composite shaft sleeve 7 for being tightly connected is provided with between valve body 2 and eccentric valve shaft 2.Valve body 2 upper end is connected with the Gland 8 of band stuffing box packing, and stuffing box packing is pressed in the mesopore of valve body 2 by Gland 8, forms the external sealed above valve body 2.Valve body 2 bottom is fixedly connected with bottom flange 9, is provided with second " O " shape seal ring 10 between bottom flange 9 and valve body 2, forms external sealed below valve body 2.
As shown in Figure 3,4, valve seat 5 is fixed in valve body 2, and valve seat 5 is cambered surface hard sealing structure 13 with the surface of contact of spiral shape butterfly plate 3, and valve seat 5 is provided with the soft seal circle 14 for being tightly connected with spiral shape butterfly plate 3.
As shown in Figure 2,4, valve body 2 inwall is provided with the staircase structural model 2.1 for valve seat 5 limit mounting, is provided with pendant collet 15 between valve seat 5 and staircase structural model 2.1, and pendant collet 15 is fixed on staircase structural model 2.1 by screw 16.
Working procedure of the present utility model:
During use, drive unit 1 is fixed by hex screw and support 12.
During work, eccentric valve shaft 4 upper end is connected by flat key 11 with the output terminal of drive unit 1, eccentric valve shaft 4 and spiral shape butterfly plate 3 are locked by taper pin 6, and spiral shape butterfly plate 3 is eccentric valve shaft 4 rotary work within the scope of 90 ° and then, and spiral shape butterfly plate 3 opens the state of 45 degree as shown in Figure 5.
Because the geometrical center (i.e. eccentric structure) of eccentric valve shaft 4 misalignment spiral shape butterfly plate 3, when spiral shape butterfly plate 3 is opened, spiral shape butterfly plate 3 is constantly drawn back, to inside contracting; When spiral shape butterfly plate 3 is closed, spiral shape butterfly plate 3 constantly marches forward, outwards swollen, and its structure and fuction is equivalent to eccentric-butterfly-valve, eccentric half-ball valve.
The Kai Heguan to spiral shape butterfly plate 3 and valve seat 5 is realized by drive unit 1, thus the switch of control valve track media, realize the two way sealed of valve, make valve can realize forward and install and oppositely install.
As shown in Figure 6, during positive flow sealing, pressure medium promotes spiral shape butterfly plate 3 and moves along the direction of positive flow, makes the sealing surface of spiral shape butterfly plate 3 be close to cambered surface hard sealing structure 13 transmission of pressure of valve seat 5, valve seat 5 is pushed to the staircase structural model 2.1 of valve body 2, valve closing.
As shown in Figure 7, during reverse flow sealing, pressure medium promotes spiral shape butterfly plate 3 simultaneously and valve seat 5 moves along the direction of reverse flow, makes the cambered surface hard sealing structure 13 of valve seat 5 be close to the spherical seal surface transmission of pressure of spiral shape butterfly plate 3, it is made to combine closely, valve closing.
Claims (8)
1. a bidirectional flow is wear-resisting revolves Ball type butlerfly valve, comprise the drive unit (1) of valve assembly and control valve assembly switch, described valve assembly comprises the valve body (2) that two side ends is provided with import and export, be positioned at the spiral shape butterfly plate (3) of valve body (2), for the valve seat (5) be tightly connected with spiral shape butterfly plate (3), and the eccentric valve shaft (4) that axis is connected with spiral shape butterfly plate (3) center line bias, one end of described eccentric valve shaft (4) is connected with the output terminal of drive unit (1), described valve seat (5) is fixed in valve body (2), it is characterized in that:
Described eccentric valve shaft (4) is locked through spiral shape butterfly plate (3) and by taper pin (6), and the other end and the valve body (2) of described eccentric valve shaft (4) are tightly connected; The surface of contact of described valve seat (5) and spiral shape butterfly plate (3) is cambered surface hard sealing structure (13), and described valve seat (5) is provided with the soft seal circle (14) for being tightly connected with spiral shape butterfly plate (3).
2. bidirectional flow according to claim 1 is wear-resisting revolves Ball type butlerfly valve, it is characterized in that: described valve body (2) inwall is provided with the staircase structural model (2.1) for valve seat (5) limit mounting, be provided with pendant collet (15) between described valve seat (5) and staircase structural model (2.1), described pendant collet (15) is fixed on staircase structural model (2.1) by screw (16).
3. bidirectional flow according to claim 2 is wear-resisting revolves Ball type butlerfly valve, it is characterized in that: described valve seat (5) is tightly connected by first " O " shape seal ring (18) and valve body (2), is also provided with wear-resisting spacer (17) between described valve seat (5) and pendant collet (15).
4. bidirectional flow according to claim 1 and 2 is wear-resisting revolves Ball type butlerfly valve, it is characterized in that: be provided with the selflubricating composite shaft sleeve (7) for being tightly connected between described valve body (2) and eccentric valve shaft (2).
5. bidirectional flow according to claim 4 is wear-resisting revolves Ball type butlerfly valve, it is characterized in that: described valve body (2) upper end is connected with the Gland (8) of band stuffing box packing.
6. bidirectional flow according to claim 5 is wear-resisting revolves Ball type butlerfly valve, it is characterized in that: described valve body (2) bottom is fixedly connected with bottom flange (9), between described bottom flange (9) and valve body (2), be provided with second " O " shape seal ring (10).
7. bidirectional flow according to claim 1 is wear-resisting revolves Ball type butlerfly valve, it is characterized in that: described eccentric valve shaft (4) is connected by flat key (11) with drive unit (1).
8. bidirectional flow according to claim 1 is wear-resisting revolves Ball type butlerfly valve, it is characterized in that: described drive unit (1) is fixedly mounted on valve body (2) by support (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420786779.XU CN204387354U (en) | 2014-12-12 | 2014-12-12 | Bidirectional flow is wear-resisting revolves Ball type butlerfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420786779.XU CN204387354U (en) | 2014-12-12 | 2014-12-12 | Bidirectional flow is wear-resisting revolves Ball type butlerfly valve |
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| Publication Number | Publication Date |
|---|---|
| CN204387354U true CN204387354U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420786779.XU Expired - Fee Related CN204387354U (en) | 2014-12-12 | 2014-12-12 | Bidirectional flow is wear-resisting revolves Ball type butlerfly valve |
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| CN (1) | CN204387354U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151544A (en) * | 2016-08-23 | 2016-11-23 | 欧冠阀门科技有限公司 | A kind of butterfly valve of double eccentric conical valve seat metal hard-sealing |
| CN108397557A (en) * | 2018-05-03 | 2018-08-14 | 江苏通达船用阀泵有限公司 | Double eccentric flange Worm type Hand-operated butterfly valves peculiar to vessel |
| CN109854761A (en) * | 2019-04-08 | 2019-06-07 | 江苏神通阀门股份有限公司 | A kind of valve base sealing structure of butterfly valve |
-
2014
- 2014-12-12 CN CN201420786779.XU patent/CN204387354U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151544A (en) * | 2016-08-23 | 2016-11-23 | 欧冠阀门科技有限公司 | A kind of butterfly valve of double eccentric conical valve seat metal hard-sealing |
| CN108397557A (en) * | 2018-05-03 | 2018-08-14 | 江苏通达船用阀泵有限公司 | Double eccentric flange Worm type Hand-operated butterfly valves peculiar to vessel |
| CN109854761A (en) * | 2019-04-08 | 2019-06-07 | 江苏神通阀门股份有限公司 | A kind of valve base sealing structure of butterfly valve |
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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: 20150610 Termination date: 20181212 |