CN106402470A - Stop valve - Google Patents
Stop valve Download PDFInfo
- Publication number
- CN106402470A CN106402470A CN201611112413.4A CN201611112413A CN106402470A CN 106402470 A CN106402470 A CN 106402470A CN 201611112413 A CN201611112413 A CN 201611112413A CN 106402470 A CN106402470 A CN 106402470A
- Authority
- CN
- China
- Prior art keywords
- valve
- stop
- stop valve
- flap
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000012856 packing Methods 0.000 claims abstract description 11
- 210000004907 gland Anatomy 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 4
- 238000005516 engineering process Methods 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
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to a stop valve, and belongs to the technical field of compressors. The stop valve is composed of a valve body, a valve clack, a threaded bushing, a valve rod, a valve deck, a hand wheel and a nut; the valve clack is arranged in the valve body, and the lower end of the valve rod is connected to the valve clack through the threaded bushing; the valve deck is arranged at the upper end of the valve body, and the upper end of the valve rod is fixedly connected to the hand wheel through the nut; a sealing device is arranged inside the valve deck; and the sealing device comprises a packing groove formed in the valve deck, packing is arranged inside the packing groove, and a packing gland is arranged at the upper end of the packing. According to the stop valve, a buffering device is additionally arranged to reduce torque and vibration borne by the stop valve, and therefore the service life of the stop valve can be prolonged and the sealing property of the stop valve can be improved. The hand wheel can be further controlled through a stop rod. The stop valve has the advantages of being reliable in sealing property, high in hardness, resistant to wear, high temperature and corrosion, good in anti-scratch property and long in service life.
Description
Technical field
The present invention relates to a kind of stop valve and in particular to a kind of by increasing the cut-off that increases the service life of buffer structure
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 commercial production.Stop valve, is also pipe valve, is a kind of one of most popular valve.Why very popular stop valve is, is
Because during its opening and closing, the frictional force between sealing surface is little, easy to maintenance, pressure is applied widely.
Stop valve, also known as pipe valve valve, belongs to forced seal formula valve, so in valve closing it is necessary to apply pressure to flap
Power, is not leaked with forced seal face.When entering valve below medium is by flap, the resistance overcoming required for operating physical force, is valve
The frictional force of bar and filler and thrust produced by the pressure of medium, the power of closing valve is bigger than the power of valve opening door, so valve rod
Diameter big, the fault of valve rod bending otherwise can occur.It is divided into three kinds by connected mode：Flange connection, screwed connection, welding
Connect.After self-packing valve occurs, the medium flow direction of stop valve just changes by entrance valve pocket above flap, at this moment in medium pressure
Under power effect, the power of closing valve is little, and the power of valve opening door is big, and the diameter of valve rod can correspondingly reduce.Meanwhile, act in medium
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, be nominal diameter 25%～30% when. flow has reached maximum, represents valve
Reach fully open position.So the fully open position of stop valve, should be determined by the stroke of flap.
The sealing property of stop valve refers to that each seal member stops the ability of fluid leakage, and it is off the most important skill of valve
Art performance indications.Existing stop valve all there is a problem of leading to sealing property to be deteriorated due to life-time service.Therefore, how to solve
Certainly existing stop valve leads to due to life-time service that the problem that sealing property is deteriorated becomes manufactures, production stop valve must solve
Key issue.
Content of the invention
It is an object of the invention to overcoming above-mentioned weak point, one kind is provided to increase the service life by increasing buffer structure
Stop valve.
The technical scheme providing according to the present invention, stop valve, by valve body, flap, thread bush, valve rod, valve gap, handwheel and spiral shell
Female composition；It is provided with flap in described valve body, be connected by thread bush between valve rod lower end and flap；Described valve body upper end is provided with valve
Lid, is fixedly connected by nut between valve rod upper end and handwheel；
It is additionally provided with sealing device inside described valve gap；Described sealing device includes, and is opened in the packing groove within valve gap, packing groove
In be provided with filler, filler upper end is provided with gland.
It is provided with the first buffer stopper between described valve body and valve gap, be bolted to connection.
Described handwheel is provided with an arresting lever, and it is orthogonal with handwheel place plane.
It is provided with the second buffer stopper between described valve rod and flap.
Beneficial effects of the present invention：The present invention is by increasing the moment of torsion that buffer unit minimizing stop valve bears in itself and shaking
Dynamic, to increase the service life, increase its sealing property；Handwheel can also be controlled further by arresting lever.Present invention sealing can
Lean on, hardness is high, wear-resisting, high temperature resistant, corrosion-resistant, antifraying property is good, life-span length.
Brief description
Fig. 1 is present configuration schematic diagram.
Description of reference numerals：1st, valve body；2nd, flap；3rd, thread bush；4th, valve rod；5th, valve gap；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, valve gap 5, handwheel 8 and nut 9；
It is provided with flap 2 in described valve body 1, be connected by thread bush 3 between valve rod 4 lower end and flap 2；Described valve body 1 upper end is provided with valve
Lid 5, is fixedly connected by nut 9 between valve rod 4 upper end and handwheel 8；
It is additionally provided with sealing device inside described valve gap 5；Described sealing device includes, and is opened in the packing groove within valve gap 5, filler
It is provided with filler 6, filler 6 upper end is provided with gland 7 in groove.
It is provided with the first buffer stopper 10 between described valve body 1 and valve gap 5, be bolted to connection.
Described handwheel 8 is provided with an arresting lever 11, and it is orthogonal with handwheel 8 place plane.
It is provided with the second buffer stopper 12 between described valve rod 4 and flap 2.
When the present invention uses, first pass through rotation hand wheel 8 and moment of torsion is applied to valve rod 4, now, one can be entered by arresting lever 11
Step is convenient to control handwheel 8.Now, valve rod 4 applies pressure so that flap 2 sealing surface and valve seat to flap 2 in the axial direction
Sealing surface fits tightly, and stops medium along the slot leakage between sealing surface.By the first buffer stopper 10 and the second buffer stopper 12
In order to buffer the moment of torsion of inside workpiece generation, to extend the service life of stop valve itself.
The present invention can be used for controlling the flowing of the fluids such as empty gas and water, steam and various Korrosionsmedium.
Claims (4)
1. stop valve, by valve body（1）, flap（2）, thread bush（3）, valve rod（4）, valve gap（5）, handwheel（8）And nut（9）Group
Become；Described valve body（1）Inside it is provided with flap（2）, valve rod（4）Lower end and flap（2）Between pass through thread bush（3）Connect；Described valve
Body（1）Upper end is provided with valve gap（5）, valve rod（4）Upper end and handwheel（8）Between pass through nut（9）It is fixedly connected；
It is characterized in that：Described valve gap（5）Inside is additionally provided with sealing device；Described sealing device includes, and is opened in valve gap（5）Internal
Packing groove, be provided with filler in packing groove（6）, filler（6）Upper end is provided with gland（7）.
2. stop valve as claimed in claim 1, is characterized in that：Described valve body（1）And valve gap（5）Between be provided with the first buffer stopper
（10）, it is bolted to connection.
3. stop valve as claimed in claim 1, is characterized in that：Described handwheel（8）It is provided with an arresting lever（11）, itself and handwheel
（8）Place plane is orthogonal.
4. stop valve as claimed in claim 1, is characterized in that：Described valve rod（4）With flap（2）Between be provided with the second buffer stopper
（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112413.4A CN106402470A (en) | 2016-12-07 | 2016-12-07 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112413.4A CN106402470A (en) | 2016-12-07 | 2016-12-07 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106402470A true CN106402470A (en) | 2017-02-15 |
Family
ID=58083793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611112413.4A Pending CN106402470A (en) | 2016-12-07 | 2016-12-07 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106402470A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09242886A (en) * | 1996-03-06 | 1997-09-16 | Kameya:Kk | Preventing device for leakage of water stop valve |
| CN101220867A (en) * | 2007-12-14 | 2008-07-16 | 曾祥炜 | Shuttle type vibration damping break valve |
| CN204512477U (en) * | 2015-03-23 | 2015-07-29 | 江苏高华流体控制有限公司 | Pressure self-sealing stop valve |
| CN204828854U (en) * | 2015-07-30 | 2015-12-02 | 江苏金石科技有限公司 | Improved straight-through type outer sliding sleeve throttle valve |
| CN204828712U (en) * | 2015-08-05 | 2015-12-02 | 杭州凯维阀门集团有限公司 | Stop valve |
| CN206234455U (en) * | 2016-12-07 | 2017-06-09 | 无锡优耐特净化装备有限公司 | Stop valve |
-
2016
- 2016-12-07 CN CN201611112413.4A patent/CN106402470A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09242886A (en) * | 1996-03-06 | 1997-09-16 | Kameya:Kk | Preventing device for leakage of water stop valve |
| CN101220867A (en) * | 2007-12-14 | 2008-07-16 | 曾祥炜 | Shuttle type vibration damping break valve |
| CN204512477U (en) * | 2015-03-23 | 2015-07-29 | 江苏高华流体控制有限公司 | Pressure self-sealing stop valve |
| CN204828854U (en) * | 2015-07-30 | 2015-12-02 | 江苏金石科技有限公司 | Improved straight-through type outer sliding sleeve throttle valve |
| CN204828712U (en) * | 2015-08-05 | 2015-12-02 | 杭州凯维阀门集团有限公司 | Stop valve |
| CN206234455U (en) * | 2016-12-07 | 2017-06-09 | 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 |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170215 |