CN202946699U - All-metal both-way pressing butterfly valve - Google Patents
All-metal both-way pressing butterfly valve Download PDFInfo
- Publication number
- CN202946699U CN202946699U CN 201220420256 CN201220420256U CN202946699U CN 202946699 U CN202946699 U CN 202946699U CN 201220420256 CN201220420256 CN 201220420256 CN 201220420256 U CN201220420256 U CN 201220420256U CN 202946699 U CN202946699 U CN 202946699U
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- valve
- metal
- ring
- butterfly
- butterfly plate
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- Expired - Fee Related
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Abstract
The utility model discloses an all-metal both-way pressing butterfly valve which comprises a valve body, a lower end cover, a butterfly plate, an upper valve rod, a lower valve rod and a sealing device, wherein the lower end cover is fixed at the lower end of the valve body, the butterfly plate is arranged inside the valve body, the upper valve rod and the lower valve rod are connected with the butterfly plate through pins, and the sealing device is arranged between the two ends of the butterfly plate and the valve body. The sealing device is composed of sealing faces, a valve body sealing ring, a split collar, a gasket and an adjusting bolt, wherein the sealing faces are arranged at two ends of the metal butterfly plate, the gasket is fixed between the valve body sealing ring and the split collar, and the adjusting bolt is matched with the split collar. According to the all-metal both-way pressing butterfly valve, the sealing ring and the butterfly sealing faces are mutually matched conical surfaces. When mediums flow in the forward direction, the butterfly plate is closely attached to the sealing ring under the action of torque exerted on the valve rods and medium force, and seal specific pressure needed for sealing is formed between sealing pairs. When the mediums flow in the reverse direction, the butterfly plate inclines to separate from a valve seat under pushing of the medium force, energy stored by a plurality of disc springs begin to be released to push the gasket, the sealing ring is enabled to be closely attached to the butterfly plate, and the necessary seal specific pressure is produced between the sealing pairs.
Description
Technical field
The utility model relates to a kind of butterfly valve, and particularly all-metal reversible is pressed butterfly valve.
Background technique
Common hard seal butterfly valve seal face materials is made by materials such as metal steel piece clip teflon, rubber asbestos plate, graphite.Be subjected to that in interlayer, the operating characteristic of nonmetallic material limits, common hard seal butterfly valve often can not be applicable to the special operation conditions such as High Temperature High Pressure.
The seal ring of common hard seal butterfly valve generally is arranged on butterfly plate, and when butterfly plate was opened, the medium in pipeline can produce seal ring and wash away, and easily causes coming off of nonmetallic material in interlayer, thereby causes valves leakage.
The seal ring of common hard seal butterfly valve is fixed on butterfly plate by bolt and pressure ring, and this structure makes butterfly plate thickness increase, and causes the butterfly plate flow resistance to increase, and the negotiability of valve is reduced, and causes unnecessary energy waste.
The model utility content
The purpose of this utility model is to provide a kind of valve fluid resistance little in order to solve above-mentioned the deficiencies in the prior art, negotiability is large, can be applicable to the operating mode of the high parameters such as high temperature, low temperature, high pressure, and sealability is reliable, the all-metal reversible of valve long service life is pressed butterfly valve.
to achieve these goals, the designed all-metal reversible of the utility model is pressed butterfly valve, comprise valve body and be fixed on the lower end cap of valve body lower end, be placed in the butterfly plate in valve body, the upper valve rod and the lower valve rod that are connected by pin with the metal butterfly plate, it is characterized in that: be provided with seal arrangement between the peripheral surface circle of described metal butterfly plate and valve body, described seal arrangement is by the sealing surface that is placed in metal butterfly plate two ends, the valve seal ring, divided ring, be fixed on the packing ring between valve seal ring and divided ring, and the adjusting bolt that coordinates with divided ring forms, valve body lower end inner chamber outlet side is provided with the positive stop lug boss of one-body molded ring-type, the valve seal ring is fixed on limit convex edge of table end face, the phase-contact surface of described packing ring and divided ring is provided with one or more the first groove, be provided with the dish spring in the first groove, dish spring one end face and adjusting bolt instep are conflicted.
For the ease of sealing, described positive stop lug boss is provided with annular and the cross section is the second groove of rectangle, is fixed with metallic shim in the second groove.
Described upper valve rod and lower valve rod are that eccentric manner is placed on valve body, and upper valve rod and lower valve rod are positioned at same gyration center.
Install for convenient, the cross section of described divided ring is L shaped divided ring, and divided ring is comprised of three or more annular divided ring, and divided ring is provided with boss, and corresponding valve body is provided with the 3rd groove that is complementary with boss.
Described valve seal ring is comprised of two-layer or two-layer above annular metal material, between every layer of annular metal material by being welded to connect.
In order to reach the effect of sealing, the sealing surface place of cooperatively interacting of valve seal ring and metal butterfly plate is the conical surface.
The all-metal reversible that obtains of the present utility model is pressed butterfly valve, seal ring and butterfly plate sealing surface are the conical surface that cooperatively interacts, when the medium forward flow, butterfly plate is adjacent to seal ring under the effect that is applied to moment of torsion on valve rod and medium power, make and produce the required seal pressure of sealing between sealing pair, valve reaches the forward sealing; When the medium reverse flow, under the promotion of medium power, butterfly plate is tending towards lifting off a seat, at this moment, the ability that a plurality of dish springs are laid in begins to discharge, thereby promotes packing ring, seal ring and butterfly plate are fitted tightly, produce necessary seal pressure between sealing pair, valve can reliably be realized reverse sealing.
Description of drawings
Fig. 1 is plan view structural representation of the present utility model;
Fig. 2 is C-C sectional view in Fig. 1;
Fig. 3 is the partial enlarged drawing at I position in Fig. 2.
In figure: end seat 1, Gland 2, filler 3, valve body 4, metal butterfly plate 5, pin 6, upper valve rod 7, lower valve rod 8, lower end cap 9, packing ring 10, divided ring 11, adjusting bolt 12, dish spring 13, valve seal ring 14, metallic shim 15, sealing surface 16, the first groove 17, positive stop lug boss 21, the second groove 22, boss 101, the 3rd groove 102.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment:
as shown in Figure 1 and Figure 2, the all-metal reversible that the present embodiment provides is pressed butterfly valve, comprise valve body 4 and be fixed on the lower end cap that is screwed 9 of valve body lower end and end seat 1, the filler 3 of upper end, Gland 2 is installed on filler 3, the upper valve rod 7 and the lower valve rod 8 that are placed in metal butterfly plate 5 in valve body, are connected by pin 6 with metal butterfly plate 4, described upper valve rod 7 and lower valve rod 8 are placed on valve body 4 for eccentric manner, and upper valve rod 7 and lower valve rod 8 are positioned at same gyration center, the integral body of metal butterfly plate 5 is that metallic material is made, sealing surface 16 places of cooperatively interacting of described valve seal ring 14 and metal butterfly plate lower end are the conical surface, be provided with seal arrangement between the two ends of described metal butterfly plate 5 and valve body 4, described seal arrangement is by the sealing surface 16 that is placed in metal butterfly plate two ends, valve seal ring 14, divided ring 11, be fixed on the packing ring 10 between valve seal ring 14 and divided ring 11, and the adjusting bolt 12 that coordinates with divided ring 11, sealing surface 16 can be identical with the manufactured materials of valve body 4, valve body lower end inner chamber outlet side is provided with the positive stop lug boss 21 of one-body molded ring-type, valve seal ring 14 is fixed on positive stop lug boss 21 limit ends, described packing ring 10 is provided with one or more the first groove 17 with the phase-contact surface of divided ring 11, be provided with dish spring 13 in the first groove 17, dish spring 13 1 end faces and adjusting bolt 12 insteps are conflicted.Described positive stop lug boss 21 is provided with in the second groove 22, the second grooves 22 that annular and cross section are rectangle and is fixed with metallic shim 15.
The cross section of described divided ring 141 is L shaped divided ring, divided ring 11 is comprised of three or more annular divided ring, divided ring 11 is provided with boss 101, and corresponding valve body is provided with the 3rd groove 102 that is complementary with boss 101, and divided ring 11 is provided with several tapped holes.
Described valve seal ring 14 is comprised of two-layer or two-layer above annular metal material, by being welded to connect, does not contain any metallic material between interlayer between every layer of annular metal material.
Claims (6)
1. an all-metal reversible is pressed butterfly valve, comprise valve body (4) and be fixed on the lower end cap (9) of valve body lower end, be placed in the metal butterfly plate (5) in valve body, the upper valve rod (7) and the lower valve rod (8) that are connected by pin (6) with the metal butterfly plate, it is characterized in that: be provided with seal arrangement between the peripheral surface circle of described metal butterfly plate (5) and valve body (4), described seal arrangement is by the sealing surface that is placed in metal butterfly plate two ends (16), valve seal ring (14), divided ring (11), be fixed on the packing ring (10) between valve seal ring and divided ring, and the adjusting bolt that coordinates with divided ring (12) forms, valve body lower end inner chamber outlet side is provided with the positive stop lug boss (21) of one-body molded ring-type, valve seal ring (14) is fixed on positive stop lug boss (21) limit end face, described packing ring (10) is provided with one or more the first groove (17) with the phase-contact surface of divided ring (11), be provided with dish spring (13) in the first groove (17), dish spring one end face and adjusting bolt instep are conflicted.
2. all-metal reversible according to claim 1 is pressed butterfly valve, and it is characterized in that: described positive stop lug boss (21) is provided with annular and the cross section is second groove (22) of rectangle, is fixed with metallic shim (15) in the second groove (22).
3. all-metal reversible according to claim 1 is pressed butterfly valve, it is characterized in that: described upper valve rod (7) and lower valve rod (8) are placed on valve body (4) for eccentric manner, and upper valve rod (7) and lower valve rod (8) are positioned at same gyration center.
4. all-metal reversible according to claim 1 is pressed butterfly valve, it is characterized in that: the cross section of described divided ring (11) is L shaped divided ring, divided ring (11) is comprised of three or more annular divided ring, divided ring (11) is provided with boss (101), and corresponding valve body is provided with the 3rd groove (102) that is complementary with boss (101).
5. all-metal reversible according to claim 1 is pressed butterfly valve, it is characterized in that: described valve seal ring (14) is comprised of two-layer or two-layer above annular metal material, between every layer of annular metal material by being welded to connect.
6. all-metal reversible according to claim 1 is pressed butterfly valve, it is characterized in that: sealing surface (16) place of cooperatively interacting of valve seal ring (14) and metal butterfly plate is the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420256 CN202946699U (en) | 2012-08-15 | 2012-08-15 | All-metal both-way pressing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420256 CN202946699U (en) | 2012-08-15 | 2012-08-15 | All-metal both-way pressing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946699U true CN202946699U (en) | 2013-05-22 |
Family
ID=48422401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220420256 Expired - Fee Related CN202946699U (en) | 2012-08-15 | 2012-08-15 | All-metal both-way pressing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946699U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626881A (en) * | 2014-10-31 | 2016-06-01 | 江苏神通阀门股份有限公司 | Valve seat structure for synthesis gas butterfly valve |
| CN106051179A (en) * | 2016-07-29 | 2016-10-26 | 上海凯工阀门有限公司 | High-performance metal hard sealing butterfly valve |
| CN109812586A (en) * | 2017-11-22 | 2019-05-28 | 中核苏阀科技实业股份有限公司 | An all-metal U-shaped elastic sealing structure for triple eccentric hard sealing butterfly valve |
| CN115539653A (en) * | 2022-09-29 | 2022-12-30 | 重庆川仪调节阀有限公司 | Assembling method of low-temperature butterfly valve |
-
2012
- 2012-08-15 CN CN 201220420256 patent/CN202946699U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626881A (en) * | 2014-10-31 | 2016-06-01 | 江苏神通阀门股份有限公司 | Valve seat structure for synthesis gas butterfly valve |
| CN106051179A (en) * | 2016-07-29 | 2016-10-26 | 上海凯工阀门有限公司 | High-performance metal hard sealing butterfly valve |
| CN109812586A (en) * | 2017-11-22 | 2019-05-28 | 中核苏阀科技实业股份有限公司 | An all-metal U-shaped elastic sealing structure for triple eccentric hard sealing butterfly valve |
| CN115539653A (en) * | 2022-09-29 | 2022-12-30 | 重庆川仪调节阀有限公司 | Assembling method of low-temperature butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XUANDA INDUSTRIAL GROUP CO., LTD. Free format text: FORMER OWNER: XUANDA INDUSTRIAL GROUP ZHEJIANG NAISEN VALVE CO., LTD. Effective date: 20140122 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325100 WENZHOU, ZHEJIANG PROVINCE TO: 325105 WENZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140122 Address after: Dong'ou Industrial Park, Yongjia County, Wenzhou City, Zhejiang province 325105 Patentee after: Xuanda Industrial Group Co., Ltd. Address before: Dong'ou Industrial Zone Oubei town of Yongjia County, Wenzhou City, Zhejiang province 325100 Patentee before: Xuanda Industrial Group Zhejiang Naisen Valve Industrial Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20200815 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |