CN201166127Y - Coal gas butterfly valve - Google Patents
Coal gas butterfly valve Download PDFInfo
- Publication number
- CN201166127Y CN201166127Y CNU2008201016219U CN200820101621U CN201166127Y CN 201166127 Y CN201166127 Y CN 201166127Y CN U2008201016219 U CNU2008201016219 U CN U2008201016219U CN 200820101621 U CN200820101621 U CN 200820101621U CN 201166127 Y CN201166127 Y CN 201166127Y
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- Prior art keywords
- valve
- valve body
- butterfly
- butterfly plate
- plate
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Abstract
The utility model discloses a gas butterfly valve, composed of a valve body, a valve rod, a butterfly plate, a sealing ring and a transmission device, wherein the butterfly plate is provided on the valve body via the valve rod, the valve rod is connected with the transmission device, the sealing ring is fixed in a slot of the butterfly plate via a press plate, the butterfly plate is a three-dimension eccentric type butterfly plate, the top of the valve body is provided with a blow hole and the bottom is provided with a sewage outfall, the blow hole and the sewage outfall are provided with stop valves, The gas butterfly valve has the advantages of good seal effect, simple operation, low mechanical abrasion in use and easy clean.
Description
Technical field
The utility model relates to valve field, relates in particular to a kind of gas butterfly valve.
Background technique
Butterfly valve is with a kind of valve of opening about disc type open-shut device reciprocating rotating 90 degree, cut out with the regulated fluid passage.Butterfly valve is not only simple in structure, volume is little, in light weight but also driving moment is little, easy and simple to handle, rapid, and can have good flow regulating function simultaneously and close sealing characteristics, be one of valve kind with fastest developing speed in recent ten years.Butterfly valve application the earliest is an air quantity controllable register on flue or the chimney, also be used for low service systems such as ventilation or air feed, now be widely used in the water-feeding ﹠ drainaging pipeline system of industries such as electric power, waterpower, metallurgy, chemical industry, urban construction, also be applied on the gas pipeline.
Chinese patent 99215036.1 discloses a kind of gas butterfly valve, comprise operation equipment, valve body, butterfly plate, O-ring seal, valve rod and water circulator, valve seat with sphere shape is housed in the valve body, bottom and top at valve body are respectively equipped with water inlet and water outlet, butterfly plate is symmetrical single eccentric bivalve plate, butterfly plate is contained on the valve body by upper valve rod and lower valve rod, at last lower valve rod two ends the stuffing box packing assembly is housed respectively, two seal rings are fixed on by pressing plate in the aprons slot of butterfly plate, and valve seat and butterfly plate and two seals cushion rubber form the water seal chamber of sealing.Its shortcoming is: 1) adopt single eccentric valve plate, in the butterfly valve opening-closing process, butterfly plate rotates the extruding valve seat, and phenomenons such as mechanical wear, scratch easily take place for valve plate and valve base chamber; 2) butterfly plate is contained on the valve body by upper valve rod and lower valve rod, the processing technology complexity, and not easy to operate; 3) valve body is all made by opaque material, can't observe the situation in the water seal chamber from the external world, and the gas of assembling in the water seal chamber in time can't be got rid of; 4) this butterfly valve is not easy to clean.
The model utility content
For addressing the above problem, the purpose of this utility model is to provide mechanical wear gas butterfly valve little and easy to clean in a kind of good sealing effect, simple to operate, the using process.
For achieving the above object, the technical solution of the utility model is:
A kind of gas butterfly valve, form by valve body, valve rod, butterfly plate, seal ring and transmission device, butterfly plate is installed on the valve body by valve rod, valve rod is connected with transmission device, seal ring is fixed on by pressing plate in the groove of butterfly plate, and described butterfly plate is three-dimensional eccentric butterfly plate, and the valve body top is provided with purge hole, the valve body bottom is provided with sewage draining exit, and described purge hole and sewage draining exit are provided with stop valve.
Described seal ring is the stacked tinsel of soft or hard.
Be provided with filler between described valve rod and valve body, filler is fixed between valve rod and valve body by Gland.
Be provided with support between described valve body and transmission device, the support two ends are connected with transmission device with valve body respectively.
Described valve body both sides are respectively equipped with the pressure instrument hole.
Described valve body is provided with the valve pin.
Described transmission device is an Electric actuator.
Compare with existing gas butterfly valve, the utlity model has following advantage:
1) adopts three-dimensional eccentric butterfly plate structure, can eliminate all contact frictions between seal ring and valve body in the butterfly plate open and close stroke, prolong valve seal working life;
2) seal ring is the stacked tinsel of soft or hard, has the two-fold advantage of metal hard-sealing and elastic soft sealing, no matter under room temperature and high-temperature condition, all possesses good sealing;
3) the valve body top is provided with purge hole, can inject the more effective thorough removing of steam or hot gas attached to the dirt impurity on valve body and the butterfly plate, has ensured this gas butterfly valve excellent sealing performance and working life;
4) the valve body bottom is provided with sewage draining exit and stop valve, but the fast opening and closing stop valve is convenient to get rid of fast pipe scale impurity.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1.
The primary clustering symbol description
1, pressure instrument hole 2, pressing plate 3, butterfly plate
4, seal ring 5, filler 6, valve rod
7, support 8, Electric actuator 9, purge hole
10, Gland 11, valve pin 12, sewage draining exit
13, valve body
Embodiment
A kind of gas butterfly valve, form by valve body 13, valve rod 6, butterfly plate 3, seal ring 4 and Electric actuator 8, butterfly plate is installed on the valve body by valve rod 6, valve rod is connected with Electric actuator, seal ring 4 is fixed on by pressing plate 2 in the groove of butterfly plate, and described butterfly plate is three-dimensional eccentric butterfly plate, and the valve body top is provided with purge hole 9, the valve body bottom is provided with sewage draining exit 12, and described purge hole and sewage draining exit are provided with stop valve.Be provided with filler 5 between valve rod and valve body, filler is fixed between valve rod and valve body by Gland 10.Be provided with support 7 between described valve body and Electric actuator, the support two ends are connected with Electric actuator with valve body respectively.Described seal ring is the stacked tinsel of soft or hard
Described valve body both sides are respectively equipped with pressure instrument hole 1, can effectively observe the pipeline pressure at both sides poor by this hole.
As required, can on valve body, set up valve pin 11, so that butterfly valve is installed and to alleviate butterfly valve stressed.
Seal ring is made by rubber material.
Filler is made by oil immersion asbestos packing or graphite asbestos packing.
Valve body adopts carbon steel, spheroidal graphite material, and is fastening durable, avoided installation, lifting to cause damage accidentally, and sealing surface adopts the stainless steel nonmetallic composite, good sealing effect, and it is convenient to change.
Claims (7)
1, a kind of gas butterfly valve, form by valve body, valve rod, butterfly plate, seal ring and transmission device, butterfly plate is installed on the valve body by valve rod, valve rod is connected with transmission device, seal ring is fixed in the groove of butterfly plate by pressing plate, it is characterized in that: described butterfly plate is three-dimensional eccentric butterfly plate, and the valve body top is provided with purge hole, the valve body bottom is provided with sewage draining exit, and described purge hole and sewage draining exit are provided with stop valve.
2, gas butterfly valve according to claim 1 is characterized in that: described seal ring is the stacked tinsel of soft or hard.
3, gas butterfly valve according to claim 1 is characterized in that: be provided with filler between described valve rod and valve body, filler is fixed between valve rod and valve body by Gland.
4, according to any described gas butterfly valve of claim 1 to 3, it is characterized in that: be provided with support between described valve body and transmission device, the support two ends are connected with transmission device with valve body respectively.
5, gas butterfly valve according to claim 1 is characterized in that: described valve body both sides are respectively equipped with the pressure instrument hole.
6, gas butterfly valve according to claim 1 is characterized in that: described valve body is provided with the valve pin.
7, gas butterfly valve according to claim 1 is characterized in that: described transmission device is an Electric actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201016219U CN201166127Y (en) | 2008-03-14 | 2008-03-14 | Coal gas butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201016219U CN201166127Y (en) | 2008-03-14 | 2008-03-14 | Coal gas butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201166127Y true CN201166127Y (en) | 2008-12-17 |
Family
ID=40191514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201016219U Expired - Fee Related CN201166127Y (en) | 2008-03-14 | 2008-03-14 | Coal gas butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201166127Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202204A (en) * | 2015-10-12 | 2015-12-30 | 罗普阀业（宜兴）有限公司 | High-temperature butterfly valve for marine diesel engine |
| CN106151550A (en) * | 2016-08-30 | 2016-11-23 | 盐城宝德冶金设备有限公司 | Raw coke oven gas pipeline shearing device |
-
2008
- 2008-03-14 CN CNU2008201016219U patent/CN201166127Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202204A (en) * | 2015-10-12 | 2015-12-30 | 罗普阀业（宜兴）有限公司 | High-temperature butterfly valve for marine diesel engine |
| CN106151550A (en) * | 2016-08-30 | 2016-11-23 | 盐城宝德冶金设备有限公司 | Raw coke oven gas pipeline shearing device |
| CN106151550B (en) * | 2016-08-30 | 2019-05-24 | 盐城宝德冶金设备有限公司 | Raw coke oven gas pipeline disconnecting device |
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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 |
Granted publication date: 20081217 Termination date: 20150314 |
|
| EXPY | Termination of patent right or utility model |