CN201166126Y - Water seal butterfly valve - Google Patents
Water seal butterfly valve Download PDFInfo
- Publication number
- CN201166126Y CN201166126Y CNU2008201016191U CN200820101619U CN201166126Y CN 201166126 Y CN201166126 Y CN 201166126Y CN U2008201016191 U CNU2008201016191 U CN U2008201016191U CN 200820101619 U CN200820101619 U CN 200820101619U CN 201166126 Y CN201166126 Y CN 201166126Y
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- China
- Prior art keywords
- valve
- butterfly
- valve body
- water seal
- plate
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- Expired - Fee Related
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Abstract
The utility model discloses a water seal butterfly valve, which is 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 has two parallel butterfly plates of eccentric type, the top of the valve body is provided with a water inlet and an irradiation plug and the bottom is provided with a sewage outfall, the water inlet and the sewage outfall are provided with stop valves, the two butterfly plates, the sealing ring and the valve body form an enclosed water seal chamber. The water seal 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 Water seal 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 Water seal 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 Water seal 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 Water seal 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, and seal ring is fixed on by pressing plate in the groove of butterfly plate, and butterfly plate is the two butterfly plates of parallel double eccentric, the valve body top is provided with water inlet and diffuses stifled, valve body bottom is provided with sewage draining exit, and described water inlet and sewage draining exit are provided with stop valve, and two butterfly plates and seal ring thereof and valve body constitute the water seal inner chamber of sealing.
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 Water seal butterfly valve, the utlity model has following advantage:
1) adopts two eccentric butterfly plate structures, can reduce the contact friction between seal ring and valve body in the butterfly plate open and close stroke, prolong valve seal working life;
2) adopt the two elastic sealing structure designs of parallel double butterfly plate, double seal guarantee, good seal performance;
3) the valve body top is provided with water inlet and diffuses stifledly, and during the valve contract fully, the water seal inner chamber of being made up of valve body, butterfly plate and seal ring thereof increases inner chamber butterfly plate pressure by the water inlet fills with water, makes parallel butterfly plate sealability tightr reliable, generation secondary seal effect; Because of the water seal cavity volume is little, water filling and water discharge time are short, so generation and releasing water seal timeliness are fast; Can be behind the valve closing by diffusing of valve body top stifled effectively observation water seal situation and relief valve intracoelomic cavity accumulated gas; Also can ensure this butterfly valve excellent sealing performance and working life from diffusing stifled injection steam or the more effective thorough removing of hot gas attached to the dirt impurity on valve body and the butterfly plate;
4) the valve body bottom is provided with sewage draining exit and stop valve, before this Water seal butterfly valve is opened, should earlier stop valve be opened, and is convenient to body cavity water and dirt impurity are drained.
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, valve body 6, valve rod
7, Gland 8, support 9, Electric actuator
10, diffuse stifled 11, water inlet 12, valve pin
13, sewage draining exit 14,15, stop valve 16, filler
Embodiment
A kind of Water seal butterfly valve, form by valve body 5, valve rod 6, butterfly plate 3, seal ring 4 and Electric actuator 9, butterfly plate 3 is installed on the valve body 5 by valve rod 6, valve rod 6 is connected with Electric actuator 9, seal ring is fixed in the groove of butterfly plate by pressing plate 2, butterfly plate is the two butterfly plates of parallel double eccentric, the valve body inboard is provided with the sealing surface (not shown), the valve body top is provided with water inlet 11 and diffuses stifled 10, the valve body bottom is provided with sewage draining exit 13, described water inlet and sewage draining exit are provided with the water seal inner chamber that 14,15, two butterfly plates of stop valve and seal ring and valve body thereof constitute sealing.Be provided with filler 16 between described valve rod and valve body, filler is fixed between valve rod and valve body by Gland 7.Be provided with support 8 between described valve body and Electric actuator, the support two ends are connected with Electric actuator with valve body respectively.
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 12, 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 (6)
1, a kind of Water seal 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, and seal ring is fixed in the groove of butterfly plate by pressing plate, it is characterized in that: butterfly plate is the two butterfly plates of parallel double eccentric, the valve body top is provided with water inlet and diffuses stifled, valve body bottom is provided with sewage draining exit, and described water inlet and sewage draining exit are provided with stop valve, and two butterfly plates and seal ring thereof and valve body constitute the water seal inner chamber of sealing.
2, Water seal 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.
3, Water seal butterfly valve according to claim 1 and 2 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.
4, Water seal butterfly valve according to claim 1 is characterized in that: described valve body both sides are respectively equipped with the pressure instrument hole.
5, Water seal butterfly valve according to claim 1 is characterized in that: described valve body is provided with the valve pin.
6, Water seal 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 |
|---|---|---|---|
| CNU2008201016191U CN201166126Y (en) | 2008-03-14 | 2008-03-14 | Water seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201016191U CN201166126Y (en) | 2008-03-14 | 2008-03-14 | Water seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201166126Y true CN201166126Y (en) | 2008-12-17 |
Family
ID=40191513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201016191U Expired - Fee Related CN201166126Y (en) | 2008-03-14 | 2008-03-14 | Water seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201166126Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620000A (en) * | 2012-04-16 | 2012-08-01 | 株洲南方阀门股份有限公司 | Electric vacuum butterfly valve |
| CN104500772A (en) * | 2014-11-26 | 2015-04-08 | 江苏省鑫通阀门制造有限公司 | Water-sealed gas shut-off valve with double dampers parallel |
| CN105179713A (en) * | 2015-09-17 | 2015-12-23 | 上海沪东造船阀门有限公司 | Ship both-way sealing and double-eccentric butterfly valve sealing structure |
-
2008
- 2008-03-14 CN CNU2008201016191U patent/CN201166126Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620000A (en) * | 2012-04-16 | 2012-08-01 | 株洲南方阀门股份有限公司 | Electric vacuum butterfly valve |
| CN102620000B (en) * | 2012-04-16 | 2014-02-26 | 株洲南方阀门股份有限公司 | Electric vacuum butterfly valve |
| CN104500772A (en) * | 2014-11-26 | 2015-04-08 | 江苏省鑫通阀门制造有限公司 | Water-sealed gas shut-off valve with double dampers parallel |
| CN105179713A (en) * | 2015-09-17 | 2015-12-23 | 上海沪东造船阀门有限公司 | Ship both-way sealing and double-eccentric butterfly valve sealing structure |
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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 |