CN206234455U - Stop valve - Google Patents
Stop valve Download PDFInfo
- Publication number
- CN206234455U CN206234455U CN201621337545.2U CN201621337545U CN206234455U CN 206234455 U CN206234455 U CN 206234455U CN 201621337545 U CN201621337545 U CN 201621337545U CN 206234455 U CN206234455 U CN 206234455U
- Authority
- CN
- China
- Prior art keywords
- valve
- bonnet
- flap
- handwheel
- valve body
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000000945 filler Substances 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims abstract description 7
- 210000004907 gland Anatomy 0.000 claims abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 241000283216 Phocidae Species 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model is related to a kind of stop valve, belongs to Compressor Technology field.It is made up of valve body, flap, thread bush, valve rod, bonnet, handwheel and nut；Flap is provided with the valve body, is connected by thread bush between valve rod lower end and flap；The valve body upper end is provided with bonnet, is fixedly connected by nut between valve rod upper end and handwheel；Sealing device is additionally provided with inside the bonnet；The sealing device includes, is opened in the packing groove inside bonnet, and filler is provided with packing groove, and filler upper end is provided with gland.The utility model reduces moment of torsion and the vibration that stop valve bears in itself by increasing buffer unit, to increase the service life, increases its sealing property；Handwheel can also further be controlled by arresting lever.The utility model sealed reliable, hardness are high, wear-resisting, high temperature resistant, corrosion-resistant, antifraying property are good, long lifespan.
Description
Technical field
The utility model is related to a kind of stop valve, and in particular to a kind of by cutting of increasing that buffer structure increases the service life
Only valve, belongs to Compressor Technology field.
Background technology
Valve is that it is widely used in the modern times for controlling the device of the direction of fluid, pressure, flow in fluid system
In industrial production.Stop valve, is also pipe valve, is a kind of one of most popular valve.Why very popular stop valve is, is
Because the frictional force between sealing surface during its opening and closing is small, easy to maintenance, pressure is applied widely.
Stop valve belongs to forced seal formula valve also known as pipe valve valve, so in valve closing, it is necessary to apply to press to flap
Power, is not leaked with forced seal face.When medium enters valve by flap lower section, the resistance overcome required for operating physical force is valve
The frictional force of bar and filler and the thrust as produced by the pressure of medium, the power of closing valve are bigger than the power of valve opening door, so valve rod
Diameter it is big, the failure of valve rod bending can otherwise occur.It is divided into three kinds by connected mode：Flange connection, screwed connection, welding
Connection.After occurring from the valve of self sealss, the medium flow direction of stop valve just changes by entering valve pocket above flap, at this moment in medium pressure
Under power effect, the power of closing valve is small, and the power of valve opening door is big, and the diameter of valve rod can be reduced correspondingly.Meanwhile, in medium effect
Under, the valve of this form is also tighter.China's valve " three change to " once specified, the flow direction of stop valve, without exception using from upper
Under.When stop valve is opened, the Lift of flap, flows have reached maximum when being the 25%~30% of nominal diameter, represent valve
Fully open position is reached.So the fully open position of stop valve, should be determined by the stroke of flap.
The sealing property of stop valve refers to the ability that each seal member prevents fluid leakage, and it is off the most important skill of valve
Art performance indications.Existing stop valve all there is a problem of causing sealing property to be deteriorated due to long-term use.Therefore, how to solve
Certainly existing stop valve causes the problem that sealing property is deteriorated to become manufacture, production stop valve due to long-term use must be solved
Key issue.
The content of the invention
The purpose of this utility model is to overcome above-mentioned weak point, there is provided a kind of to be used by increasing buffer structure extension
The stop valve in life-span.
According to the technical scheme that the utility model is provided, stop valve, by valve body, flap, thread bush, valve rod, bonnet, handwheel
Constituted with nut；Flap is provided with the valve body, is connected by thread bush between valve rod lower end and flap；The valve body upper end sets
There is bonnet, be fixedly connected by nut between valve rod upper end and handwheel；
Sealing device is additionally provided with inside the bonnet；The sealing device includes, is opened in the packing groove inside bonnet, fills out
Filler is provided with hopper, filler upper end is provided with gland.
The first buffer stopper is provided between the valve body and bonnet, is bolted to connection.
The handwheel is provided with an arresting lever, and it is orthogonal with plane where handwheel.
The second buffer stopper is provided between the valve rod and flap.
The beneficial effects of the utility model：The utility model reduces the torsion that stop valve bears in itself by increasing buffer unit
Square and vibration, to increase the service life, increase its sealing property；Handwheel can also further be controlled by arresting lever.This practicality
Novel seal reliability, hardness high, wear-resisting, high temperature resistant, corrosion-resistant, antifraying property are good, long lifespan.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Description of reference numerals：1st, valve body；2nd, flap；3rd, thread bush；4th, valve rod；5th, bonnet；6th, filler；7th, gland；
8th, handwheel；9th, nut；10th, the first buffer stopper；11st, arresting lever；12nd, the second buffer stopper.
Specific embodiment
As shown in Figure 1：Stop valve, is made up of valve body 1, flap 2, thread bush 3, valve rod 4, bonnet 5, handwheel 8 and nut 9；
Flap 2 is provided with the valve body 1, is connected by thread bush 3 between the lower end of valve rod 4 and flap 2；The upper end of the valve body 1 is provided with valve
Lid 5, is fixedly connected between the upper end of valve rod 4 and handwheel 8 by nut 9；
Sealing device is additionally provided with inside the bonnet 5；The sealing device includes, is opened in the packing groove inside bonnet 5,
Filler 6 is provided with packing groove, the upper end of filler 6 is provided with gland 7.
The first buffer stopper 10 is provided between the valve body 1 and bonnet 5, is bolted to connection.
The handwheel 8 is provided with an arresting lever 11, and it is orthogonal with the place plane of handwheel 8.
The second buffer stopper 12 is provided between the valve rod 4 and flap 2.
When the utility model is used, moment of torsion is applied to valve rod 4 by rotation hand wheel 8 first, now, can be by arresting lever 11
The control handwheel 8 for further facilitating.Now, valve rod 4 in the axial direction to flap 2 apply pressure so that the sealing surface of flap 2 with
Sealing surface of seat is brought into close contact, and prevents slot leakage of the medium between sealing surface.By the first buffer stopper 10 and the second buffering
Block 12 is used to buffer the moment of torsion of inside workpiece generation, to extend stop valve service life in itself.
The utility model can be used for controlling the flowing of the fluids such as empty gas and water, steam and various Korrosionsmediums.
Claims (3)
1. stop valve, by valve body（1）, flap（2）, thread bush（3）, valve rod（4）, bonnet（5）, handwheel（8）And nut（9）Group
Into；The valve body（1）Inside it is provided with flap（2）, valve rod（4）Lower end and flap（2）Between pass through thread bush（3）Connection；The valve
Body（1）Upper end is provided with bonnet（5）, valve rod（4）Upper end and handwheel（8）Between pass through nut（9）It is fixedly connected；
It is characterized in that：The bonnet（5）Inside is additionally provided with sealing device；The sealing device includes, is opened in bonnet（5）It is internal
Packing groove, filler is provided with packing groove（6）, filler（6）Upper end is provided with gland（7）.
2. stop valve as claimed in claim 1, it is characterized in that：The valve body（1）And bonnet（5）Between be provided with the first buffer stopper
（10）, it is bolted to connection.
3. stop valve as claimed in claim 1, it is characterized in that：The handwheel（8）It is provided with an arresting lever（11）, itself and handwheel
（8）Place plane is orthogonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621337545.2U CN206234455U (en) | 2016-12-07 | 2016-12-07 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621337545.2U CN206234455U (en) | 2016-12-07 | 2016-12-07 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206234455U true CN206234455U (en) | 2017-06-09 |
Family
ID=58978597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621337545.2U Expired - Fee Related CN206234455U (en) | 2016-12-07 | 2016-12-07 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206234455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402470A (en) * | 2016-12-07 | 2017-02-15 | 无锡优耐特净化装备有限公司 | Stop valve |
-
2016
- 2016-12-07 CN CN201621337545.2U patent/CN206234455U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402470A (en) * | 2016-12-07 | 2017-02-15 | 无锡优耐特净化装备有限公司 | Stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170609 Termination date: 20211207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |