CN212690851U - Three-eccentric butterfly valve used under dirty working condition - Google Patents
Three-eccentric butterfly valve used under dirty working condition Download PDFInfo
- Publication number
- CN212690851U CN212690851U CN202021553484.XU CN202021553484U CN212690851U CN 212690851 U CN212690851 U CN 212690851U CN 202021553484 U CN202021553484 U CN 202021553484U CN 212690851 U CN212690851 U CN 212690851U
- Authority
- CN
- China
- Prior art keywords
- valve
- shaft sleeve
- disc plate
- shaft
- valve shaft
- 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.)
- Active
Links
Images
Landscapes
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to a three eccentric butterfly valves especially relate to a three eccentric butterfly valves that use under dirty operating mode. The utility model discloses can prevent that the valve shaft from storing up impurity, delay the dish board wearing and tearing, reduce and change the frequency, this three eccentric butterfly valve uses under dirty operating mode and has improved life cycle greatly. The utility model comprises a valve body and a valve shaft rotationally connected with the valve body; a disc plate fixed to the valve shaft; the upper shaft sleeve and the lower shaft sleeve are arranged between the valve body and the valve shaft and enable the valve shaft to rotate; the sealing mechanisms are respectively arranged at two ends of the upper shaft sleeve and the lower shaft sleeve; a fixing member adjusting mechanism connecting the valve shaft and the disc plate; and a cleaning mechanism disposed at the outer edge of the disc plate; the cleaning mechanism comprises a sealing ring fixed on the outer edge of the disc plate and a filter ring arranged on one side of the sealing ring and fixedly connected with the disc plate, and a gap of 1-2mm is formed between the outer edge of the filter ring and the inner wall of the valve body.
Description
Technical Field
The utility model relates to a three eccentric butterfly valves especially relate to a three eccentric butterfly valves that use under dirty operating mode.
Background
The triple eccentric butterfly valve is characterized in that the valve clack and the valve seat are sealed firmly, the axis of the valve shaft deviates from the center of the valve body and the center of the disc plate, and the axis of rotation of the valve seat and the axis of a valve body channel form a certain angle. The triple eccentric butterfly valve can be applied to high-temperature and high-pressure working conditions, and is widely applied to industrial pipelines of metallurgy, electric power, petrochemical industry, municipal water supply and drainage and the like for flow regulation or fluid cutoff.
The existing triple-eccentric butterfly valve mainly focuses on tightness between a disc sealing ring and a valve seat, neglects the working condition that a medium contains more solid impurities, and solves the problems that the butterfly valve opening and closing torque is increased due to the fact that impurities are accumulated in a butterfly valve shaft sleeve, abrasion occurs in hard sealing between a disc and the valve seat when a sealing surface accumulates the impurities to cause the butterfly valve to be closed, and disc sealing components have to be frequently replaced when slight abrasion occurs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a triple offset butterfly valve used under dirty working condition, which can prevent the accumulation of impurities by arranging a shaft sleeve and a sealing mechanism; when the disc plate is closed, impurities on the sealing surface of the valve body can be filtered, and the abrasion of the disc plate is delayed; the distance between the valve shaft and the center of the disc plate can be adjusted when the disc plate is slightly worn, the replacement frequency is reduced, and the service life of the three-eccentric butterfly valve is greatly prolonged when the three-eccentric butterfly valve is used under an unclean working condition.
The three-eccentric center butterfly valve used under the dirty working condition of the utility model comprises a valve body and a valve shaft rotationally connected with the valve body; a disc plate fixed to the valve shaft; the upper shaft sleeve and the lower shaft sleeve are arranged between the valve body and the valve shaft and enable the valve shaft to rotate; the sealing mechanisms are respectively arranged at two ends of the upper shaft sleeve and the lower shaft sleeve; a fixing member adjusting mechanism connecting the valve shaft and the disc plate; and a cleaning mechanism disposed at the outer edge of the disc plate; the cleaning mechanism comprises a sealing ring fixed on the outer edge of the disc plate and a filter ring arranged on one side of the sealing ring and fixedly connected with the disc plate, and a gap of 1-2mm is formed between the outer edge of the filter ring and the inner wall of the valve body.
The curvature of the filter ring is the same as that of the disc plate and the inner wall of the valve body, a 1-2mm gap is reserved between the end face of the filter ring and the inner wall of the valve body, the outer diameter of the filter ring is larger than that of the disc plate but smaller than that of the sealing ring, impurities accumulated on the sealing surface formed by the sealing ring and the valve body can be effectively removed when the triple eccentric butterfly valve is closed, and abrasion caused when the sealing ring is attached to the valve body is avoided.
Preferably, the sealing mechanism comprises an upper filler arranged at the top of the upper shaft sleeve and between the valve shaft and the upper shaft sleeve; the first dustproof filling ring is arranged at the bottom of the upper shaft sleeve and between the valve shaft and the upper shaft sleeve; the second dustproof filling ring is arranged at the top of the lower shaft sleeve and between the valve shaft and the lower shaft sleeve; the lower packing is arranged at the bottom of the lower shaft sleeve and between the valve shaft and the lower shaft sleeve; the gland is arranged at the top of the upper packing and is fixedly connected with the valve body; and the valve shaft base is arranged at the bottom of the lower shaft sleeve and is fixedly connected with the valve body through a flange.
One end of the lower shaft sleeve is abutted to the inside of the valve shaft base, the upper end and the lower end of the valve shaft are provided with an upper shaft sleeve and a lower shaft sleeve, and the upper shaft sleeve and the lower shaft sleeve are both provided with a dustproof ring and a packing ring for sealing, so that impurities are prevented from being accumulated on the valve shaft; the split type design of valve body and valve shaft base adopts flange joint, the clearance of being convenient for avoids the valve shaft card to die simultaneously.
Preferably, the fixing part adjusting mechanism comprises a fixing sleeve which is sleeved with the valve shaft and is fixedly connected with the valve shaft through a positioning pin; a connecting plate fixed on one side of the fixed sleeve; the adjusting bolt is connected with the connecting plate and the disc plate through threads; and a gasket for adjusting the distance between the center of the valve shaft and the center of the disc plate is arranged between the connecting plate and the disc plate, and the thickness of the gasket is 0.01-0.03 mm.
When the maintenance finds that the sealing ring is slightly worn but does not influence the use performance, the quantity of the gaskets can be adjusted through adjusting the deviation of the axle center of the valve shaft and the center of the disc plate, the contact area of the sealing ring and the valve body is increased, the sealing effect is enhanced, and the service life of the sealing ring is prolonged.
The utility model has the advantages that: the upper shaft sleeve and the lower shaft sleeve are both provided with a dustproof ring and a packing ring for sealing, and meanwhile, the valve body and the valve shaft base are in split design and are connected by flanges, so that impurities are prevented from being accumulated on the valve shaft and the valve shaft is prevented from being clamped; the disc plate is provided with the filter ring, so that impurities accumulated on a sealing surface can be effectively removed when the triple eccentric butterfly valve is closed, and abrasion caused when the sealing ring is attached to the valve body is avoided; set up adjusting bolt and gasket on the dish board, accessible adjusting shim quantity, the skew at adjustment valve shaft axle center and dish board center increases the area of contact of sealing washer and valve body inner wall, strengthens sealed effect, reduces the extra expense of changing the sealing washer expenditure, is favorable to reducing this and subtracts the expense.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is an enlarged view of the portion A in FIG. 1;
FIG. 3 is an enlarged view of the portion B in FIG. 1;
FIG. 4 is a schematic view of the valve body construction;
in the figure: 1. a valve body; 2. a valve shaft; 3. a plate; 4. an upper shaft sleeve; 5. a lower shaft sleeve; 6. a seal ring; 7. a filter ring; 8. filling; 9. a first dust-proof filling ring; 10. a second dust-proof filling ring; 11. lower filling; 12. a gland; 13. a valve shaft base; 14. fixing a sleeve; 15. a connecting plate; 16. adjusting the bolt; 17. and (7) a gasket.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-4, the triple offset butterfly valve used in dirty condition of the present invention comprises a valve body 1; a valve shaft 2; a disc plate 3 fixed on the valve shaft 2, an upper shaft sleeve 4 and a lower shaft sleeve 5 arranged between the valve body 1 and the valve shaft 2 to enable the valve shaft 2 to rotate; the sealing mechanisms are respectively arranged at two ends of the upper shaft sleeve 4 and the lower shaft sleeve 5; a fixing member adjusting mechanism connecting the valve shaft 2 and the disc plate 3; and a cleaning mechanism disposed at the outer edge of the disc plate; the cleaning mechanism comprises a sealing ring 6 fixed on the outer edge of the disc plate and a filter ring 7 arranged on one side of the sealing ring 6 and fixedly connected with the disc plate 3, wherein a 1-2mm gap is arranged between the outer edge of the filter ring 7 and the inner wall of the valve body 1, and a 1 mm gap can be reserved in the embodiment. The sealing mechanism comprises an upper filler 8 arranged at the top of the upper shaft sleeve 4 and between the valve shaft 2 and the upper shaft sleeve 4; the first dustproof filling ring 9 is arranged at the bottom of the upper shaft sleeve 4 and between the valve shaft 2 and the upper shaft sleeve 4; a second dustproof filling ring 10 arranged at the top of the lower shaft sleeve 5 and between the valve shaft 2 and the lower shaft sleeve 5; the lower packing 11 is arranged at the bottom of the lower shaft sleeve 5 and between the valve shaft 2 and the lower shaft sleeve 5; the gland 12 is arranged at the top of the upper packing 8 and is fixedly connected with the valve body 1; and the valve shaft base 13 is arranged at the bottom of the lower shaft sleeve 5, and the valve shaft base 13 is fixedly connected with the valve body 1 through a flange. The fixing piece adjusting mechanism comprises a fixing sleeve 14 which is sleeved with the valve shaft 2 and is fixedly connected with the valve shaft 2 through a positioning pin; a connecting plate 15 fixed on one side of the fixing sleeve 14; the adjusting bolt 16 is connected with the connecting plate 15 and the disc plate 3 through threads; a gasket 17 used for adjusting the distance between the center of the valve shaft and the center of the disc plate is arranged between the connecting plate 15 and the disc plate 3, and the thickness of the gasket 17 is 0.02 mm.
In this embodiment, the curvature of the filter ring 7 is the same as that of the disc plate 3 and the inner wall of the valve body 1, and the outer diameter of the filter ring 7 is larger than that of the disc plate 3 but smaller than that of the sealing ring 6, so that impurities accumulated on the sealing surface formed by the sealing ring 6 and the valve body 1 can be effectively removed when the triple offset butterfly valve is closed. The upper end and the lower end of the valve shaft are provided with an upper shaft sleeve 4 and a lower shaft sleeve 5, and the upper shaft sleeve 4 and the lower shaft sleeve 5 are both provided with a dustproof ring and a packing ring for sealing, so that impurities are prevented from being accumulated on the valve shaft 5; valve body 4 and the split type design of valve shaft base 13 adopt flange joint, the clearance of being convenient for avoids the valve shaft card to die simultaneously. When the maintenance finds that the sealing ring 6 is slightly worn, the quantity of the gaskets 17 can be adjusted to adjust the deviation between the axle center of the valve shaft and the center of the disc plate, so that the contact area between the sealing ring 6 and the valve body 1 is increased, the sealing effect is enhanced, and the service life of the sealing ring 6 is prolonged.
Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.
Claims (3)
1. The utility model provides a three eccentric butterfly valves that use under dirty operating mode, includes valve body (1), rotates valve shaft (2) of connecting on valve body (1) and is fixed in dish board (3) on valve shaft (2), its characterized in that still includes:
an upper shaft sleeve (4) and a lower shaft sleeve (5) which are arranged between the valve body (1) and the valve shaft (2) and enable the valve shaft (2) to rotate;
the sealing mechanisms are respectively arranged at two ends of the upper shaft sleeve (4) and the lower shaft sleeve (5);
a fixing part adjusting mechanism connecting the valve shaft (2) and the disc plate (3);
and a cleaning mechanism disposed at the outer edge of the disc plate;
the cleaning mechanism comprises a sealing ring (6) fixed on the outer edge of the disc plate and a filter ring (7) arranged on one side of the sealing ring (6) and fixedly connected with the disc plate (3), and a 1-2mm gap is formed between the outer edge of the filter ring (7) and the inner wall of the valve body (1).
2. A triple offset butterfly valve for use in dirty conditions according to claim 1, wherein: the sealing mechanism comprises a sealing mechanism and a sealing mechanism,
an upper filler (8) arranged between the top of the upper shaft sleeve (4) and the valve shaft (2) and the upper shaft sleeve (4);
a first dustproof filling ring (9) arranged at the bottom of the upper shaft sleeve (4) and between the valve shaft (2) and the upper shaft sleeve (4);
a second dustproof filling ring (10) arranged at the top of the lower shaft sleeve (5) and between the valve shaft (2) and the lower shaft sleeve (5);
a lower filler (11) arranged at the bottom of the lower shaft sleeve (5) and between the valve shaft (2) and the lower shaft sleeve (5);
the gland (12) is arranged at the top of the upper packing (8) and is fixedly connected with the valve body (1);
and the valve shaft base (13) is arranged at the bottom of the lower shaft sleeve (5), and the valve shaft base (13) is fixedly connected with the valve body (1) through a flange.
3. A triple offset butterfly valve for use in dirty conditions according to claim 1, wherein: the fixing piece adjusting mechanism comprises a fixing piece adjusting mechanism,
the fixing sleeve (14) is sleeved with the valve shaft (2) and is fixedly connected with the valve shaft (2) through a positioning pin;
a connecting plate (15) fixed on one side of the fixed sleeve (14);
the adjusting bolt (16) is connected with the connecting plate (15) and the disc plate (3) through threads, and the adjusting bolt (16) is connected with the disc plate (3) through the threads;
a gasket (17) used for adjusting the distance between the center of the valve shaft and the center of the disc plate is arranged between the connecting plate (15) and the disc plate (3), and the thickness of the gasket (17) is 0.01-0.03 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021553484.XU CN212690851U (en) | 2020-07-30 | 2020-07-30 | Three-eccentric butterfly valve used under dirty working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021553484.XU CN212690851U (en) | 2020-07-30 | 2020-07-30 | Three-eccentric butterfly valve used under dirty working condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212690851U true CN212690851U (en) | 2021-03-12 |
Family
ID=74900356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021553484.XU Active CN212690851U (en) | 2020-07-30 | 2020-07-30 | Three-eccentric butterfly valve used under dirty working condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212690851U (en) |
-
2020
- 2020-07-30 CN CN202021553484.XU patent/CN212690851U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204692633U (en) | A kind of valve and a kind of ring assembly | |
| CN208041161U (en) | Three eccentric two-way sealed butterfly valve | |
| CN212690851U (en) | Three-eccentric butterfly valve used under dirty working condition | |
| CN113757397A (en) | Six-eccentric bidirectional sealing butterfly valve | |
| CN2416290Y (en) | Cone seal stop valve for liquid caustic soda | |
| CN212028548U (en) | Valve clack and antiscour stop valve | |
| CN101319724A (en) | Back pressure type bidirectional bearing hard seal butterfly valve | |
| CN203477332U (en) | Self-sealing stop valve | |
| CN217653267U (en) | Wear-resisting valve capable of being adjusted on line | |
| CN220956861U (en) | Hard sealing butterfly valve | |
| CN108131454A (en) | Three eccentric two-way sealed butterfly valve | |
| CN220037454U (en) | Stop valve | |
| CN216343930U (en) | Stop valve adopting L-shaped valve clack positioning ring | |
| CN210344372U (en) | Pot cover adjusting valve | |
| CN209325062U (en) | A kind of dust guard of shut-off valve peculiar to vessel | |
| CN218510188U (en) | Forged steel stop check valve | |
| CN210859838U (en) | Three-eccentric metal hard sealing butterfly valve with self-cleaning structure and with blowing hole | |
| CN215334577U (en) | Gate valve | |
| CN212839454U (en) | Double-safety stop valve | |
| CN219570870U (en) | Floating self-adjusting hard sealing butterfly valve | |
| CN219317674U (en) | Forged steel V-shaped adjusting ball valve | |
| CN2185824Y (en) | Leakproof stop valve | |
| CN212804356U (en) | Double-inclined-plane four-eccentric-seal C-shaped ball valve | |
| CN209294443U (en) | A kind of double castellated Wedge type double gate board gate valves | |
| CN217003257U (en) | Check valve capable of running stably |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |