CN206257291U - A kind of heavy caliber vacuum butterfly valve - Google Patents
A kind of heavy caliber vacuum butterfly valve Download PDFInfo
- Publication number
- CN206257291U CN206257291U CN201621391774.2U CN201621391774U CN206257291U CN 206257291 U CN206257291 U CN 206257291U CN 201621391774 U CN201621391774 U CN 201621391774U CN 206257291 U CN206257291 U CN 206257291U
- Authority
- CN
- China
- Prior art keywords
- axle bed
- valve
- valve shaft
- hole
- radial direction
- 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
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Abstract
A kind of heavy caliber vacuum butterfly valve of the utility model,With valve body,Butterfly plate,Valve shaft,On,The drive device of lower valve axle bed and valve shaft,Upper valve axle bed is built with axle sleeve,Gland is stamped on upper valve axle bed,Axle sleeve top,Gland bottom,Ring packing space is surrounded by between valve shaft outer wall and upper valve axle bed inwall,Ring packing space is built-in with metal packing ring,Metal packing ring upper and lower part it is interior,Annular groove is machined with outer wall respectively,Annular groove is built with rubber seal,In metal packing ring middle part is machined with,External annular groove,Metal packing ring middle part is offered in,Before external groove,Radial direction through hole afterwards,Offered on the upper valve axle bed with it is preceding,Before the axle bed that radial direction through hole is mutually linked up afterwards,Radial direction through hole afterwards,Before axle bed,The orifice position that radial direction through hole is located on upper valve axle bed outer wall afterwards is equipped with pipe joint.The good sealing effect between valve shaft and airtight and watertight padding in the utility model, and contact area is small, the abrasion of generation and power consumption are relatively small.
Description
Technical field
The utility model is related to a kind of heavy caliber vacuum butterfly valve.
Background technology
Heavy caliber vacuum butterfly valve of the prior art, with valve body, butterfly plate, valve shaft, install valve shaft upper and lower valve shaft seat with
And the drive device that valve shaft rotates is driven, the upper valve axle bed is stamped gland, axle sleeve top built with axle sleeve on upper valve axle bed
End, ring packing space is surrounded by between gland bottom, valve shaft outer wall and upper valve axle bed inwall, had in ring packing space
There is packing filling, to prevent medium from being revealed via valve rod and filler chamber space.In above-mentioned ring packing space of the prior art
Packing filling often by fiber（Asbestos, nylon etc.）, lubricant（Graphite, molybdenum bisuphide, talcum powder etc.）Increase with various wires
Strong agent composition, can be compensated by after filler abrasion by the bolt tightened on gland.Packing filling sealing structure and valve shaft
Between contact area it is big, frictional resistance is big when valve shaft is rotated, and the power consumption of generation and abrasion are larger, and above-mentioned packing_seal
The shortcomings of also there is easily leakage in structure.
Utility model content
The technical problems to be solved in the utility model is to provide one kind and is rubbed and airtight and watertight padding between when valve shaft is rotated and hinders
Power is small, so that the power consumption for producing and abrasion are also relatively small, and airtight and watertight padding is to the heavy caliber vacuum of valve shaft good sealing effect
Butterfly valve.
In order to solve the above technical problems, a kind of heavy caliber vacuum butterfly valve of the utility model, with valve body, butterfly plate, valve shaft, peace
The drive device for filling the upper and lower valve shaft seat of valve shaft and driving valve shaft to rotate, the upper valve axle bed is built with axle sleeve, upper valve axle bed
On be stamped gland, be surrounded by ring packing between axle sleeve top, gland bottom, valve shaft outer wall and upper valve axle bed inwall
Space, the ring packing space is built-in with the metal packing ring being set in outside valve shaft, metal packing ring upper and lower part it is interior,
Annular groove is machined with outer wall respectively, annular groove adds built with rubber seal on the inside and outside wall in the middle part of metal packing ring
Work has section for rectangular inner and outer rings connected in star, and metal packing ring middle part offers the forward and backward radial direction through inside and outside groove
Through hole, offers and the forward and backward radial direction through hole of axle bed that forward and backward radial direction through hole is mutually linked up, the forward and backward footpath of axle bed on the upper valve axle bed
The orifice position being located to through hole on upper valve axle bed outer wall is equipped with pipe joint.
Using the heavy caliber vacuum butterfly valve of said structure, traditional structure with packing_seal packing seal valve shaft is changed
Form, the rubber seal set by the upper and lower part for then passing through metal packing ring is in contact sealing with valve shaft so that valve shaft and
The contact area of airtight and watertight padding is greatly reduced, so that the power consumption for producing and abrasion are also relatively small；The utility model is when in use
The pipe joint of the orifice position installing that the forward and backward radial direction through hole of axle bed is located on upper valve axle bed outer wall will respectively connect waterflood-transmission line
And flowing line, the water injected through waterflood-transmission line can be full of the inner and outer rings that formation is processed on the inside and outside wall in the middle part of metal packing ring
In connected in star, then discharged by flowing line, water filling and discharge cycle be capable of achieving tight between metal packing ring and valve shaft
Sealing, and the extraneous air that will be penetrated into through valve shaft is effectively from flowing line discharge.In addition, the utility model need not be often right
The compression degree of filler is adjusted, and reduces maintenance workload.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is a kind of main structure diagram of heavy caliber vacuum butterfly valve of the utility model.
Fig. 2 is the cross section structure diagram at the upper valve axle bed in a kind of heavy caliber vacuum butterfly valve of the utility model.
Fig. 3 is to get rid of the schematic diagram after metal packing ring in Fig. 2.
Fig. 4 is the left view enlarged diagram of the metal packing ring shown in Fig. 2.
Fig. 5 is the enlarged diagram of the metal packing ring section shown in Fig. 2, one of those is illustrate only in figure and is cutd open
Face.
Fig. 6 is to get rid of the schematic diagram after rubber seal in Fig. 5.
Specific embodiment
Referring to Fig. 1-Fig. 6, a kind of heavy caliber vacuum butterfly valve of the utility model, with valve body 1, butterfly plate 2, valve shaft 3, installation
Valve shaft 3 upper and lower valve shaft seat 4,5 and drive valve shaft rotate drive device 6, the upper valve axle bed 4 built with axle sleeve 7, on
Gland 8 is stamped on valve shaft seat 4, is enclosed between the top of axle sleeve 7, the bottom of gland 8, the outer wall of valve shaft 3 and the inwall of upper valve axle bed 4
Into there is ring packing space 9, the ring packing space 9 is built-in with the metal packing ring 10 being set in outside valve shaft 3, metal packing
Annular groove 11 is machined with the inside and outside wall of the upper and lower part of ring 10 respectively, annular groove 11 is built with rubber seal 12, gold
Section is machined with for rectangular inner and outer rings connected in star 13,14 on the inside and outside wall at the middle part of category packing ring 10, metal packing ring 10
Middle part offers the forward and backward radial direction through hole 15,16 through inside and outside groove 13,14, offered on the upper valve axle bed 4 with it is forward and backward
The forward and backward radial direction through hole 17,18 of axle bed that radial direction through hole 15,16 is mutually linked up, the forward and backward radial direction through hole 17,18 of axle bed is located at upper valve shaft
Orifice position on seat outer wall is equipped with pipe joint 19.
Claims (1)
1. a kind of heavy caliber vacuum butterfly valve, with valve body（1）, butterfly plate（2）, valve shaft（3）, install valve shaft（3）Upper and lower valve shaft seat
（4、5）And drive the drive device of valve shaft rotation（6）, the upper valve axle bed（4）Built with axle sleeve（7）, upper valve axle bed（4）On
It is stamped gland（8）, axle sleeve（7）Top, gland（8）Bottom, valve shaft（3）Outer wall and upper valve axle bed（4）Between inwall
It is surrounded by ring packing space（9）, it is characterised in that：The ring packing space（9）It is built-in with and is set in valve shaft（3）Outer gold
Category packing ring（10）, metal packing ring（10）Annular groove is machined with respectively on the inside and outside wall of upper and lower part（11）, it is annular recessed
Groove（11）Built with rubber seal（12）, metal packing ring（10）It is rectangular that section is machined with the inside and outside wall at middle part
Inner and outer rings connected in star（13、14）, metal packing ring（10）Middle part is offered through inside and outside groove（13、14）Forward and backward radial direction
Through hole（15、16）, the upper valve axle bed（4）On offer and forward and backward radial direction through hole（15、16）The forward and backward footpath of axle bed mutually linked up
To through hole（17、18）, the forward and backward radial direction through hole of axle bed（17、18）Orifice position on upper valve axle bed outer wall connects equipped with pipeline
Head（19）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621391774.2U CN206257291U (en) | 2016-12-19 | 2016-12-19 | A kind of heavy caliber vacuum butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621391774.2U CN206257291U (en) | 2016-12-19 | 2016-12-19 | A kind of heavy caliber vacuum butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206257291U true CN206257291U (en) | 2017-06-16 |
Family
ID=59030015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621391774.2U Expired - Fee Related CN206257291U (en) | 2016-12-19 | 2016-12-19 | A kind of heavy caliber vacuum butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206257291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354482A (en) * | 2019-12-27 | 2020-06-30 | 中国核动力研究设计院 | Reactor core instrument assembly with reusable packing ring |
-
2016
- 2016-12-19 CN CN201621391774.2U patent/CN206257291U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354482A (en) * | 2019-12-27 | 2020-06-30 | 中国核动力研究设计院 | Reactor core instrument assembly with reusable packing ring |
| CN111354482B (en) * | 2019-12-27 | 2022-04-15 | 中国核动力研究设计院 | Reactor core instrument assembly with reusable packing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20171219 |