CN203532773U - Double-flange high-performance butterfly valve - Google Patents
Double-flange high-performance butterfly valve Download PDFInfo
- Publication number
- CN203532773U CN203532773U CN201320543555.1U CN201320543555U CN203532773U CN 203532773 U CN203532773 U CN 203532773U CN 201320543555 U CN201320543555 U CN 201320543555U CN 203532773 U CN203532773 U CN 203532773U
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- Prior art keywords
- valve
- eccentric
- disk plate
- valve body
- valve rod
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 229910001141 Ductile iron Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 241000255777 Lepidoptera Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a double-flange high-performance butterfly valve. The butterfly valve comprises a valve body and an eccentric valve rod, wherein the valve body is provided with a sealing face, the valve rod is arranged inside the valve body, an eccentric dish plate and a metal insert are arranged on the sealing face and used for conducting sealing, and the eccentric dish plate and the eccentric valve rod make contact only in the closed state and form a duel-eccentric structure of the valve body. A seal ring is arranged at the joint of the eccentric dish plate and the valve body, the seal ring is a simply supported beam type and lip type seal ring, and the seal ring and the metal insert are sealed in a matched mode and form a flexible structure. After the technical scheme is adopted, the double-flange high-performance butterfly valve has the advantages of being reasonable in structure, convenient and rapid to use, good in sealing effect, long in service life and the like.
Description
Technical field
The utility model relates to a kind of pair of flange high-performance butterfly valve, by International Patent Classification (IPC) (IPC), divides and belongs to fluid pipeline switch valve technical field.
Background technique
High-performance butterfly valve, because it is reasonable in design, compact structure, lightweight, easy for installation, the favor of receiving most consumers.At present, butterfly valve is not only used widely on the general industries such as oil, coal gas, chemical industry, water treatment, but also is applied in the cooling system of cogeneration power plant.At present two flange butterflies exist subject matter to be: (1) seals still can not reach requirement, and especially the long period is used, and has in addition medium leakage phenomenon between valve body and metal insert, affects valve performance; (2) eccentric disk plate adopts spheroidal graphite cast iron to affect sealability with corrosion, if adopt high cost of stainless steel, and intensity is lower than nodular cast iron; (3) processing and installation are complicated, and easily produce parallel coming off, and affect sealability; (4) surface friction drag is larger, increases the torsion of start-up operation and closing operation, affects Operational Figure Of Merit, and power consumption.
Thus, the inventor considers two flange butterfly internal structures to improve, and this case produces thus.
Model utility content
For the deficiencies in the prior art, the utility model provides two flange high-performance butterfly valves of a kind of rational in infrastructure, convenient to use, good sealing effect and long service life.
For achieving the above object, the utility model is achieved through the following technical solutions:
A pair flange high-performance butterfly valve, this butterfly valve comprises valve body and the eccentric valve rod with sealing surface; Described valve rod is placed in valve inner, and this valve rod is placed in valve body and on sealing surface, is provided with eccentric disk plate and metal insert seals, and described eccentric disk plate only contact in off position with eccentric valve rod, two eccentric structures of formation valve body; The junction of described eccentric disk plate and valve body is provided with seal ring, and described seal ring is the lip seal circle of freely-supported beam type, and sealing circle and metal insert fitted seal also form flexible structure.
Further, described eccentric disk plate contacts side two ends with valve rod are provided with thrust washer, and the thrust washer at described two ends is held eccentric disk plate holder fix, and form eccentric disk plate position structure.
Further, described eccentric disk plate is connected by bearing pin with valve rod and fixes, and forms valve rod and loosens structure.
Further, described seal ring is PTFE lip seal circle.
The utility model utilizes lip seal circle and two eccentric structure of freely-supported beam type, has guaranteed reliable sealing, if butterfly valve bears backpressure, under medium effect, lip seal circle can produce effect same, makes valve guarantee sealing reliably; Eccentric structure on the other hand, opening process can depart from the friction between sealing pair fast, has extended the working life of seal ring.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is Figure 1A place enlarged view;
Fig. 3 is eccentric disk plate rotation status figure in two eccentric structures in the utility model;
Fig. 4 is in pressure medium state lower seal phase diagram () in the utility model;
Fig. 5 is in pressure medium state lower seal phase diagram (two) in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Embodiment: refer to shown in Fig. 1, a kind of pair of flange high-performance butterfly valve, this butterfly valve comprises valve body 1 and the eccentric valve rod 2 with sealing surface.
Refer to shown in Fig. 1 to Fig. 3, valve rod 2 is placed in valve body 1 inside, this valve rod 2 is placed in valve body 1 and on sealing surface, is provided with eccentric disk plate 3 and metal insert 4 seals, described eccentric disk plate 3 only contacts in off position with eccentric valve rod 2, form two eccentric structures of valve body 1, and opening process can depart from the friction between sealing pair fast, extended the working life of seal ring.
Refer to shown in Fig. 1 to Fig. 5, eccentric disk plate 3 is provided with seal ring 5 with the junction of valve body 1, described seal ring 5 is the lip seal circle of freely-supported beam type, sealing circle 5 is with metal insert 4 fitted seal and form flexible structure, no matter flowing medium is from the upstream and downstream end of valve body 1, lip seal face can contain with butterfly plate sphere, forms reliable sealing surface.Described seal ring 5 is PTFE lip seal circle, while closing, the 5 generation deflections of PTFE lip seal circle and eccentric disk plate 3 outer rim spheres are combined closely, form sealing surfaces, valve body 1 and inserts clamping lip seal circle 5, at restraint location, make sealing surface and medium isolation, have guaranteed reliable sealing, if butterfly valve bears backpressure, under medium effect, (see Fig. 4 and Fig. 5), lip seal circle 5 can produce effect same, makes valve guarantee sealing reliably.
Refer to shown in Fig. 1, eccentric disk plate 3 contacts side two ends with valve rod 2 are provided with thrust washer 6, the thrust washer 6 at described two ends clamps eccentric disk plate 3 fix, form eccentric disk plate 3 position structures, described eccentric disk plate 3 is connected and is fixed by bearing pin 7 with valve rod 2, forms valve rod 2 and loosens structure.
Advantage of the present utility model and beneficial effect are as follows:
1, the rotation of eccentric disk plate 3 is not done fulcrum with valve body 1, in rotation moment and valve body 1, disengages, and reduces sealing surface wear;
2, the lip seal of flexible structure, guarantees that valve two way sealed is reliable;
3, the central position that thrust washer 6 keeps eccentric disk plate 3;
4, valve rod 2 is connected and can be prevented that connection is loosening by bearing pin 7 with eccentric disk plate 3;
5, straight-through type valve rod 2 is connected with eccentric disk plate 3 and has guaranteed eccentric disk plate 3 rotating coaxial degree;
6, metal insert 4 protection valve body 1 index position.
Above record, only, for utilizing the embodiment of this origination techniques content, modification, variation that any those skilled in the art use this creation to do, all belong to the scope of the claims that this creation is advocated, and be not limited to those disclosed embodiments.
Claims (4)
1. two flange high-performance butterfly valves, is characterized in that: this butterfly valve comprises valve body and the eccentric valve rod with sealing surface; Described valve rod is placed in valve inner, and this valve rod is placed in valve body and on sealing surface, is provided with eccentric disk plate and metal insert seals, and described eccentric disk plate only contact in off position with eccentric valve rod, two eccentric structures of formation valve body; The junction of described eccentric disk plate and valve body is provided with seal ring, and described seal ring is the lip seal circle of freely-supported beam type, and sealing circle and metal insert fitted seal also form flexible structure.
2. a kind of pair of flange high-performance butterfly valve according to claim 1, it is characterized in that: described eccentric disk plate contacts side two ends with valve rod are provided with thrust washer, the thrust washer at described two ends is held eccentric disk plate holder fix, and forms eccentric disk plate position structure.
3. a kind of pair of flange high-performance butterfly valve according to claim 1 and 2, is characterized in that: described eccentric disk plate is connected by bearing pin with valve rod and fixes, and forms valve rod and loosens structure.
4. a kind of pair of flange high-performance butterfly valve according to claim 1, is characterized in that: described seal ring is PTFE lip seal circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320543555.1U CN203532773U (en) | 2013-09-03 | 2013-09-03 | Double-flange high-performance butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320543555.1U CN203532773U (en) | 2013-09-03 | 2013-09-03 | Double-flange high-performance butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532773U true CN203532773U (en) | 2014-04-09 |
Family
ID=50418983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320543555.1U Expired - Fee Related CN203532773U (en) | 2013-09-03 | 2013-09-03 | Double-flange high-performance butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532773U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240540A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | High platform dual-flange type high-performance butterfly valve |
| CN108930799A (en) * | 2018-09-07 | 2018-12-04 | 巴顿阀门（杭州）有限公司 | Double eccentric butterfly valve |
-
2013
- 2013-09-03 CN CN201320543555.1U patent/CN203532773U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240540A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | High platform dual-flange type high-performance butterfly valve |
| CN108930799A (en) * | 2018-09-07 | 2018-12-04 | 巴顿阀门（杭州）有限公司 | Double eccentric butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DESW (XIAMEN) FLUID CONTROL EQUIPMENT CO., LTD. Free format text: FORMER NAME: XIAMEN DESW FLUID CONTROL CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 361101 604A room, strong building, industrial zone, torch hi tech Zone (Xiangan), Xiamen, Fujian Patentee after: DESW (XIAMEN) FLUID CONTROL CO.,LTD. Address before: Unit A No. 2 layer seventeenth Siming Lake Road 361000 Xiamen City, Fujian Province Patentee before: XIAMEN DAIER SIWEI FLUID CONTROL CO.,LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160224 Address after: 415400 Hunan Province, Tianjin city, No. three Bridge No. 66 attached to No. 301 Patentee after: Huang Jianhong Address before: 361101 604A room, strong building, industrial zone, torch hi tech Zone (Xiangan), Xiamen, Fujian Patentee before: DESW (XIAMEN) FLUID CONTROL CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191230 Address after: 415500 floor 1-2, building 10, Chuangyuan Park, Lixian Economic Development Zone, Sanjia neighborhood committee, Lidan sub district office, Lixian County, Changde City, Hunan Province Patentee after: HUNAN GAOCI CONTROL SYSTEM TECHNOLOGY Co.,Ltd. Address before: 415400 Hunan Province, Tianjin city, No. three Bridge No. 66 attached to No. 301 Patentee before: Huang Jianhong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 |