CN106931179A - Novel high pressure-resistant high temperature cut-off valve - Google Patents
Novel high pressure-resistant high temperature cut-off valve Download PDFInfo
- Publication number
- CN106931179A CN106931179A CN201511011455.4A CN201511011455A CN106931179A CN 106931179 A CN106931179 A CN 106931179A CN 201511011455 A CN201511011455 A CN 201511011455A CN 106931179 A CN106931179 A CN 106931179A
- Authority
- CN
- China
- Prior art keywords
- valve
- bonnet
- airtight
- valve rod
- flashboard
- 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
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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/12—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with wedge-shaped arrangements of sealing faces
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- 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
-
- 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
Abstract
The invention discloses a kind of novel high pressure-resistant high temperature cut-off valve, including valve body, valve rod, bonnet and flashboard；Valve body is provided with left valve channel, right valve channel；Bonnet is arranged at valve body upper end, and valve rod extends upward through bonnet；Bonnet top is provided with adjustable shaft seal structure with valve rod junction；Adjustable shaft seal structure includes gland, airtight and watertight padding, adjusting screw；Airtight and watertight padding is filled in the annular groove of bonnet top and valve rod junction upward opening；Gland is sleeved on valve rod, and the flange on its top is connected to bonnet upper surface by adjusting screw, and lower axial end is pressed on airtight and watertight padding upper end；Further improvement is that：Airtight and watertight padding is v-ring；Copper sealing ring is respectively equipped with flashboard both sides sealing end face；Left valve channel right-hand member, right valve channel left end are respectively equipped with valve seat；The seal face that valve seat is combined with copper sealing ring is provided with antifriction metal (AFM) coating.The present invention can pass through the sealing of regulating guarantee bonnet and valve rod junction, and high pressure resistant, high temperature resistant is wear-resisting, corrosion-resistant.
Description
Technical field
The present invention relates to a kind of valve, more particularly to a kind of gate valve.
Background technology
Gate valve includes valve body, valve rod, bonnet and flashboard, and valve body is provided with left valve channel, right valve channel, and bonnet is arranged on valve body
End, flashboard is located in valve body between left valve channel, right valve channel, and valve rod extends upward through bonnet, and lower end is connected with flashboard.In order to prevent a left side
Fluid media (medium) is leaked from bonnet and valve rod junction in valve road, right valve channel, and shaft seal structure is provided with bonnet and valve rod junction.It is existing
It is fixed sealing to have gate valve cover and valve rod junction shaft seal structure, it is impossible to adjusted, therefore, when in shaft seal structure sealing ring with
After the fit clearance of valve rod is incrementally increased with use time, sealing herein it cannot be guaranteed that, easily cause the leakage of gate valve,
Prevent gate valve is from bearing larger pressure.
The content of the invention
The present invention in view of the shortcomings of the prior art, proposes a kind of sealing of energy by regulating guarantee bonnet and valve rod junction
Property so that gate valve can bear the novel high pressure-resistant high temperature cut-off valve of elevated pressures.
The present invention is achieved through the following technical solutions technical goal.
Novel high pressure-resistant high temperature cut-off valve, including valve body, valve rod, bonnet and flashboard；The valve body is provided with left valve channel, right valve
Road；The bonnet is arranged at valve body upper end, and flashboard is located in valve body between left valve channel, right valve channel；The valve rod extends upward through valve
Lid, lower end is connected with flashboard；It is theed improvement is that：The bonnet top is provided with adjustable shaft seal structure with valve rod junction；
The adjustable shaft seal structure includes gland, airtight and watertight padding, adjusting screw；The airtight and watertight padding is filled in bonnet top and valve rod
In the annular groove of junction upward opening；The gland is sleeved on valve rod, and the flange on its top is connected to by adjusting screw
Bonnet upper surface, lower axial end is pressed on airtight and watertight padding upper end.
In said structure, the airtight and watertight padding is v-ring；The airtight and watertight padding V-arrangement is opening down or upward.
In said structure, copper sealing ring is respectively equipped with the flashboard both sides sealing end face；The copper sealing ring welding connects
It is connected on flashboard both sides sealing end face.
In said structure, the left valve channel right-hand member, right valve channel left end are respectively equipped with valve seat；The valve seat and copper sealing ring knot
The seal face of conjunction is provided with antifriction metal (AFM) coating.
The present invention compared with prior art, has the positive effect that：
1. bonnet top is provided with adjustable shaft seal structure with valve rod junction, can keep airtight and watertight padding with valve rod all the time by adjusting
Keep close sealing state so that the present invention can bear elevated pressures.
2. airtight and watertight padding is v-ring, and airtight and watertight padding V-arrangement is opening down or upward, and after airtight and watertight padding stress, sealing is filled out
Material is more in close contact with valve rod, further improves the reliability on bonnet top and valve rod junction, and voltage endurance capability is higher.
3. copper sealing ring is respectively equipped with flashboard both sides sealing end face, and copper sealing ring is welded to connect in flashboard both sides sealing end
On face, the flashboard that the present invention is constituted using two annular sealing surfaces is wedged into the valve cavity of two annular sealing surfaces composition, according to
Friction is contacted with two faces of valve body by flashboard, certain seal pressure is reached and is realized sealing function, can reach zero leakage, can
For the operating mode of HTHP, sealing effectiveness reliability.
4. left valve channel right-hand member, right valve channel left end are respectively equipped with valve seat, and valve plate on the one hand can be avoided directly to be combined with valve body, rub
Wipe valve body；On the other hand, adjust also more convenient.
5. the seal face that valve seat is combined with copper sealing ring is provided with antifriction metal (AFM) coating, and sealing pair coefficient of friction is small, close
Front cover is wear-resisting, corrosion-resistant, long service life.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is I enlarged schematic partial view in Fig. 1.
Specific embodiment
The invention will be further described below according to accompanying drawing and in conjunction with the embodiments.
Novel high pressure-resistant high temperature cut-off valve shown in the drawings, including valve body 2, valve rod 1, bonnet 3 and flashboard 4；Valve body 2 is provided with a left side
Valve road 2.1, right valve channel 2.2, the right-hand member of left valve channel 2.1, the left end of right valve channel 2.2 are respectively equipped with valve seat 7；Bonnet 3 is arranged on valve body 2
End, flashboard 4 is located in valve body 2 between left valve channel 2.1, right valve channel 2.2；Valve rod 1 extends upward through bonnet 3, and lower end connects with flashboard 4
Connect；Copper sealing ring 5 is respectively equipped with the both sides sealing end face of flashboard 4；Copper sealing ring 5 is welded to connect in the both sides sealing end face of flashboard 4
On, the seal face that valve seat 7 is combined with copper sealing ring 5 is provided with antifriction metal (AFM) coating 7.1.
The top of bonnet 3 is provided with adjustable shaft seal structure 6 with the junction of valve rod 1；Adjustable shaft seal structure 6 include gland 6.2,
Airtight and watertight padding 6.1, adjusting screw 6.3, in the present embodiment, airtight and watertight padding 6.1 is v-ring；Airtight and watertight padding 6.1 is filled in valve
In the annular groove of the top of lid 3 and the junction upward opening of valve rod 1, airtight and watertight padding 6.1V shapes are opening down（In other embodiment, sealing
Filler 6.1V shapes opening also can be upward）；Gland 6.2 is sleeved on valve rod 1, and the flange on its top is connected by adjusting screw 6.3
The upper surface of bonnet 3 is connected on, lower axial end is pressed on the upper end of airtight and watertight padding 6.1.
Claims (4)
1. a kind of novel high pressure-resistant high temperature cut-off valve, including valve body（2）, valve rod（1）, bonnet（3）And flashboard（4）；The valve body（2）
It is provided with left valve channel（2.1）, right valve channel（2.2）；The bonnet（3）It is arranged at valve body（2）Upper end, flashboard（4）Positioned at valve body（2）It is interior
Left valve channel（2.1）, right valve channel（2.2）Between；The valve rod（1）Extend upward through bonnet（3）, lower end and flashboard（4）Connection；It is special
Levy and be：The bonnet（3）Top and valve rod（1）Junction is provided with adjustable shaft seal structure（6）；The adjustable shaft seal structure
（6）Including gland（6.2）, airtight and watertight padding（6.1）, adjusting screw（6.3）；The airtight and watertight padding（6.1）It is filled in bonnet（3）On
Portion and valve rod（1）In the annular groove of junction upward opening；The gland（6.2）It is sleeved on valve rod（1）On, the flange on its top
By adjusting screw（6.3）It is connected to bonnet（3）Upper surface, lower axial end is pressed on airtight and watertight padding（6.1）Upper end.
2. novel high pressure-resistant high temperature cut-off valve according to claim 1, it is characterised in that：The airtight and watertight padding（6.1）It is V-arrangement
Sealing ring；The airtight and watertight padding（6.1）V-arrangement is opening down or upward.
3. novel high pressure-resistant high temperature cut-off valve according to claim 1 and 2, it is characterised in that：The flashboard（4）Both sides sealing
Copper sealing ring is respectively equipped with end face（5）；The copper sealing ring（5）It is welded to connect in flashboard（4）On both sides sealing end face.
4. novel high pressure-resistant high temperature cut-off valve according to claim 3, it is characterised in that：The left valve channel（2.1）Right-hand member, the right side
Valve road（2.2）Left end is respectively equipped with valve seat（7）；The valve seat（7）With copper sealing ring（5）With reference to seal face be provided with wear-resisting
Metal coating（7.1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011455.4A CN106931179A (en) | 2015-12-30 | 2015-12-30 | Novel high pressure-resistant high temperature cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511011455.4A CN106931179A (en) | 2015-12-30 | 2015-12-30 | Novel high pressure-resistant high temperature cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106931179A true CN106931179A (en) | 2017-07-07 |
Family
ID=59458691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511011455.4A Pending CN106931179A (en) | 2015-12-30 | 2015-12-30 | Novel high pressure-resistant high temperature cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106931179A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6488263B2 (en) * | 1998-03-02 | 2002-12-03 | T & R Solutions, Inc. | Valve stem and method of manufacture; improved stem packing |
| CN201401552Y (en) * | 2009-05-04 | 2010-02-10 | 关东 | Stuffing box for gate valve |
| CN202659915U (en) * | 2012-07-22 | 2013-01-09 | 江苏金晟元特种阀门有限公司 | Ammonia stop valve |
| CN203322340U (en) * | 2013-06-17 | 2013-12-04 | 胡相兰 | Gate valve compressing packing easily |
| CN203322339U (en) * | 2013-06-17 | 2013-12-04 | 胡相兰 | Gate valve easy to assemble |
| CN205278423U (en) * | 2015-12-30 | 2016-06-01 | 江苏海达船用阀业有限公司 | Novel gate valve of nai high pressure and high temperature |
-
2015
- 2015-12-30 CN CN201511011455.4A patent/CN106931179A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6488263B2 (en) * | 1998-03-02 | 2002-12-03 | T & R Solutions, Inc. | Valve stem and method of manufacture; improved stem packing |
| CN201401552Y (en) * | 2009-05-04 | 2010-02-10 | 关东 | Stuffing box for gate valve |
| CN202659915U (en) * | 2012-07-22 | 2013-01-09 | 江苏金晟元特种阀门有限公司 | Ammonia stop valve |
| CN203322340U (en) * | 2013-06-17 | 2013-12-04 | 胡相兰 | Gate valve compressing packing easily |
| CN203322339U (en) * | 2013-06-17 | 2013-12-04 | 胡相兰 | Gate valve easy to assemble |
| CN205278423U (en) * | 2015-12-30 | 2016-06-01 | 江苏海达船用阀业有限公司 | Novel gate valve of nai high pressure and high temperature |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20170707 |