CN203322298U - Butterfly valve - Google Patents
Butterfly valve Download PDFInfo
- Publication number
- CN203322298U CN203322298U CN2013203615403U CN201320361540U CN203322298U CN 203322298 U CN203322298 U CN 203322298U CN 2013203615403 U CN2013203615403 U CN 2013203615403U CN 201320361540 U CN201320361540 U CN 201320361540U CN 203322298 U CN203322298 U CN 203322298U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- butterfly
- valve rod
- rod
- 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.)
- Expired - Fee Related
Links
- 229920002313 fluoropolymer Polymers 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 4
- 210000000664 rectum Anatomy 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000000945 filler Substances 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000003566 sealing material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses a butterfly valve which comprises a valve body, wherein a valve clack is arranged inside the valve body; the valve clack is a butterfly plate; a valve cap is arranged on a valve rod above the valve body; a valve rod bearing is arranged at an end part of the valve rod; sealing fillers and gaskets are arranged on two sides of a drift diameter of the valve body; a valve seat is arranged inside the valve body; a handle is mounted on the valve rod; the valve rod and the butterfly plate are designed into a whole and extend out from a valve body cavity; the valve body, the valve clack and the valve rod are made of iron steel; and the valve seat and linings are made of a soft sealing material. According to the butterfly valve, the linings made of a fluoroplastic are lined inside the valve body and outside a sealing surface of the butterfly plate. A plasticity processing principle of the fluoroplastic is used, and the iron steel is used for manufacturing a casing or a cavity and lined on the casing or plastically lined on the surface, so that steel metal is prevented from being contacted with a highly corrosive medium directly, and the corrosion resistance of the valve is improved.
Description
Technical field
The utility model relates to valve field, and particularly a kind of selfsealings lining that lowers friction, low wearing and tearing is moulded butterfly valve structure.
Background technique
Butterfly valve is a kind of modulating valve simple in structure, generally includes valve body, valve rod, butterfly plate and valve seat.The butterfly valve open-shut device is a discoidal butterfly plate, and the axis around himself in valve body rotates, thereby reaches the purpose that opens and closes or regulate.It has simple in structure, volume is little, lightweight, material consumption is economized, the characteristics such as installation dimension is little, and switch is rapid, 90 ° of reciprocating rotatings, and driving moment is little, for blocking, connect, regulate the medium of pipeline, there is good fluid control characteristic and close sealability.Therefore, be widely used in carrying on the pipeline of various corrosivity, non-corrosive fluids medium in the engineering systems such as coal gas, rock gas, liquefied petroleum gas (LPG), town gas, cold and hot air, chemical industry smelting and generation environment-friendly.
What butterfly valve seal plane materiel material was commonly used at present has two kinds: metal to metal seal (abbreviation metal sealing) and metal pair non-metal soft material sealing (abbreviation soft seal), the impact of the long-lived machining accuracy of metal sealing, the soft seal circle is easily realized tight seal, and work in-process can reduce the requirement to the sealing surface machining accuracy.But because flap is metallic material, be subject to the restriction of machining accuracy and roughness, make soft seal easily wear and tear.
For improving the deficiency in this structure, I take charge of a kind of lining of design studies and mould butterfly valve, utilize the excellent properties of fluoroplastic and unique structural design, significantly reduce or the friction between sealing pair while eliminating valve opening and closing, improve valve working life.
The model utility content
For solving the problems of the technologies described above, the utility model provides a kind of butterfly valve, and its purpose is significantly to reduce or the friction between sealing pair while eliminating valve opening and closing, improves valve working life.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of butterfly valve, it comprises valve body, and valve inner is provided with flap, and described flap is butterfly plate, and the valve rod place above valve body is provided with valve gap, and the valve rod end is provided with stem bearing, and valve body latus rectum both sides are provided with stuffing box packing and pad, and valve seat is placed in valve inner; Handle is installed on valve rod, and described valve rod and butterfly plate are made as one and stretch out in the valve body chamber.
Preferably, pad is ring-type arc pad.
Preferably, pad is at least four.
Preferably, the material of described stuffing box packing is fluoroplastic.
By technique scheme, the butterfly valve that the utility model provides, be lined with in described valve inner and butterfly plate sealing surface outside and take the lining that fluoroplastic are material; Utilize the plastic process principle of fluoroplastic, with iron and steel, do shell or do internal control, it is lining in housing and serves as a contrast and mould in surface.Be used for completely cutting off the die metal with this and contact with the direct of strong corrosive medium, improve the decay resistance of valve.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described.
Fig. 1 is structural representation of the present utility model.
Wherein: 1, valve body 2, pad 3, butterfly plate 4, valve seat 5, filler 6, valve rod 7, bearing
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described.
The present embodiment as shown in Figure 1, comprise valve body 1, valve body 1 inside is provided with butterfly plate 3, valve rod 6 is made as one with butterfly plate 3, from valve body 1 axle center, pass, valve rod 6 ends above valve body 1 are provided with valve seat 4, and there is bearing 7 valve seat 4 belows, valve body 1 both sides are provided with valve stem seal, and described valve stem seal comprises filler 5 and annular arcuation pad 2.Described filler 5 is designed to the conical surface, is tapering with valve seat 4 and is adjacent to.Described four loop arcuation pad 2 combinations, produce certain gap.During work, under pipe interior and sealing load effect, butterfly plate 3 and valve seat 4 are fade-in the engagement that gradually goes out, and filler 5 and pad 2 with cone angle coordinate, and make valve seat 4 delay into or delay, in the situation that guarantee sealing, reduce wearing and tearing.
The present embodiment, in order to improve the decay resistance of valve, described valve inner and butterfly plate sealing surface outside are lined with take the lining that fluoroplastic are material; Its inventive point is the plastic process principle that utilizes fluoroplastic, with iron and steel, does shell or does internal control, it is lining in housing and serves as a contrast and mould in surface.Be used for completely cutting off the die metal with this and contact with the direct of strong corrosive medium, improve the decay resistance of valve.
Due to the self-lubricating property excellence of fluoroplastic, when valve opening and closing, utilize its excellent performance, reduce the friction factor between butterfly plate and sealing surface of seat, reduce wearing and tearing.
Be provided with the flexible pores bearing between valve rod and valve body top hole wall and bottom hole wall, this pore bearing comprises the outer lining with being arranged at outer internal surface of bearing, the cylindrical body that the bearing skin is a hollow, and its cylindrical wall is provided with some through holes; The lining inwall forms air bubble-shaped depression hole in the outer field lead to the hole site of corresponding bearing, and bearing is outer and lining is provided with the breach of an inclination.
Described valve body bore both sides are equipped with valve stem seal, the valve stem seal place adopts taper sealing pad and four ring-type arc-shaped pad sheets, cone angle seal ring and valve seat are a cone angle, four ring-type arc-shaped pad sheets are stacked, frictionally automatic-sealed between layers, utilize elasticity and pliability between sheet sheet arcuation, while making valve working, the torque force be subject on valve seat can be distributed in around valve seat integral body, have elastic force and flexible seal ring assembly can under the effect of power, present the shape of valve seat, extruding force distributes uniformly provides the locking on a kind of bilateral direction tightly.Thereby guaranteed sealability, and reduced the wearing and tearing between sealing surface.
The above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.Multiple modification to these embodiments will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from spirit or scope of the present utility model, realization in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a butterfly valve, it comprises valve body, valve inner is provided with flap, described flap is butterfly plate, and the valve rod place above valve body is provided with valve gap, and the valve rod end is provided with stem bearing, it is characterized in that: valve body latus rectum both sides are provided with stuffing box packing and pad, and valve seat is placed in valve inner; Handle is installed on valve rod, and described valve rod and butterfly plate are made as one and stretch out in the valve body chamber.
2. butterfly valve according to claim 1, is characterized in that, pad is ring-type arc pad.
3. butterfly valve according to claim 2, is characterized in that, pad is at least four.
4. butterfly valve according to claim 3, is characterized in that, the material of described stuffing box packing is fluoroplastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203615403U CN203322298U (en) | 2013-06-24 | 2013-06-24 | Butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203615403U CN203322298U (en) | 2013-06-24 | 2013-06-24 | Butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322298U true CN203322298U (en) | 2013-12-04 |
Family
ID=49661650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203615403U Expired - Fee Related CN203322298U (en) | 2013-06-24 | 2013-06-24 | Butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235393A (en) * | 2013-06-24 | 2014-12-24 | 氟络塞尔特种阀门(苏州)有限公司 | Butterfly valve |
| CN104235394A (en) * | 2013-06-24 | 2014-12-24 | 氟络塞尔特种阀门(苏州)有限公司 | Butterfly valve |
-
2013
- 2013-06-24 CN CN2013203615403U patent/CN203322298U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235393A (en) * | 2013-06-24 | 2014-12-24 | 氟络塞尔特种阀门(苏州)有限公司 | Butterfly valve |
| CN104235394A (en) * | 2013-06-24 | 2014-12-24 | 氟络塞尔特种阀门(苏州)有限公司 | Butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
|
| CX01 | Expiry of patent term | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: Expiration and Termination of 39 Volume 2801 Patent on July 11, 2023 Number: 28-01 Volume: 39 |
|
| CU01 | Correction of utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 |