CN105909821B - A kind of HTHP hard seal ball valve - Google Patents
A kind of HTHP hard seal ball valve Download PDFInfo
- Publication number
- CN105909821B CN105909821B CN201610429563.1A CN201610429563A CN105909821B CN 105909821 B CN105909821 B CN 105909821B CN 201610429563 A CN201610429563 A CN 201610429563A CN 105909821 B CN105909821 B CN 105909821B
- Authority
- CN
- China
- Prior art keywords
- valve
- end cap
- bottom plate
- convex block
- ball
- 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.)
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Classifications
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
-
- 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
- F16K41/023—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles
- F16K41/026—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles for rotating valves
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a kind of HTHP hard seal ball valve, including valve body, end cap and upper lid, valve seat and valve ball are provided with the valve pocket of the valve body, nickel-base alloy metal c-type circle is provided with valve seat outer face, self sealss delta-ring is provided between valve body and end cap, self sealss c-type circle and Graphite pad, valve ball upper end is socketed with upper mounted plate, valve ball lower end is socketed with bottom plate, upper mounted plate and bottom plate left and right ends are integrally provided with one piece of locating convex block, the end cap inner face alignment upper mounted plate and bottom plate position offer the end cap matched with the locating convex block a locating convex block slot, the locating convex block of the fixed plate and bottom plate one end end cap locating convex block slot plugged and fixed with sustained height respectively.Above-mentioned technical proposal, reasonable in design, simple in construction, reliable operation, good sealing effect and can effectively prevent dielectric leakage.
Description
Technical field
The present invention relates to ball valve technical field, and in particular to a kind of HTHP hard seal ball valve.
Background technology
Ball valve has developed into a kind of main valve species with its good sealing property and higher negotiability,
It is widely used in various fields.In the HTHP pipeline of the industries such as electric power, petrochemical industry, more played using hard seal ball valve is cut
The effect of disconnected isolation.Cut-out, the valve of isolation are played in pipeline if there is interior leakage, economy and many damages of secure context can be caused
Lose.
The different degrees of interior leakage phenomenon of the ball valve generally existing that uses at present in HTHP pipeline, it is considered that be valve
Structure design, the manufacturing process etc. of door are not met by the demand of operating mode, and the hardness such as valve ball, valve seat is inadequate, antiscour
Ability shortcoming, valve seat and valve body connection loosen, structure design is unreasonable etc..
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide it is a kind of it is reasonable in design, simple in construction,
Reliable operation, good sealing effect, it can effectively prevent the HTHP hard seal ball valve of dielectric leakage.
To achieve the above object, the invention provides following technical scheme：A kind of HTHP hard seal ball valve, including valve
Body, end cap and upper lid, valve seat and valve ball are provided with the valve pocket of the valve body, are connected with valve rod on the valve ball, outside the valve seat
Nickel-base alloy metal c-type circle is provided with end face, self sealss delta-ring, self sealss c-type are provided between the valve body and end cap
Circle and Graphite pad, the valve ball upper end are socketed with upper mounted plate, and valve ball lower end is socketed with bottom plate, fixed plate and
Bottom plate left and right ends are integrally provided with one piece of locating convex block, the end cap inner face alignment upper mounted plate and bottom plate
Position offers the end cap matched with the locating convex block a locating convex block slot, fixed plate and bottom plate one
The locating convex block at the end end cap locating convex block slot plugged and fixed with sustained height, and some are equipped with the end cap respectively
Connecting bolt, every connecting bolt outer end are threaded with a locking nut, and the end cap passes through connecting bolt and locking screw
Mother is connected with valve body.
By using above-mentioned technical proposal, nickel-base alloy metal c-type circle axial direction dynamic sealing, valve seat is promoted to produce piston effect
Should, nickel-base alloy metal c-type circle instead of original rubber loop material, breaches the use limitation in temperature, avoids simultaneously
Conventional high temperature hard seal ball valve using carbon seal ring because usage time is not long with regard to the problem of seal failure caused by high-temperature oxydation, work
Make reliable；And self sealss delta-ring, self sealss c-type circle and the triple static seals of Graphite pad are employed between valve body and end cap and are set
Meter, it is ensured that the reliable sealing under worst hot case；The design of upper mounted plate and bottom plate, reduces parts, and improving can
By property；Reasonable in design, simple in construction, good sealing effect, it can effectively prevent dielectric leakage, service life length.
The present invention is further arranged to：The valve body upper end is provided with a stem through-hole, and the stem through-hole upper end is set
Be equipped with a upper lid locating notch, the side of the upper lid locating notch is the conical surface, the upper lid lower surface be provided with it is described
The static seal conical surface of upper lid locating notch matching；A valve rod mounting hole, the valve rod mounting hole are provided with the middle part of the upper lid
Lower port is provided with a upper lid inner conical surface, and the valve rod is located at upper lid inner conical surface position and is provided with valve rod male cone (strobilus masculinus).Pass through this
Set, structure setting is more reasonable, better tightness, has prevented the leakage phenomenon at valve rod.
The present invention is further arranged to：Filled out between the inwall of valve rod and the valve rod mounting hole filled with resistance to oxidation high temperature
Material.By this setting, eliminating conventional graphite filler and aoxidizing at high temperature causes seal failure, it also avoid using asbestos packing
Caused by environmental pollution.
The present invention is further arranged to：Fixed plate is identical with bottom plate structure, and fixed plate is with
The locating convex block of fixed plate left and right ends is square block, and upper mounted plate and bottom plate left and right ends locating convex block are symmetrically set
Put, a fixed plate positioning hole coordinated with the valve ball is provided with the middle part of upper mounted plate and bottom plate.By this setting, on
Fixed plate and bottom plate structure setting are reasonable, easy to connect, fixed reliable.
The present invention is further arranged to：The valve ball upper end is provided with upper mounted plate locating notch, the valve ball lower end
It is provided with bottom plate locating notch.By this setting, it is reasonable that valve ball structure is set, upper mounted plate and bottom plate installation side
Just, it is fixed reliable.
The present invention is further arranged to：End cap convex on the valve pocket internal face alignment end cap inner face of the valve body
Block slot position is provided with valve body locating convex block slot.By this setting, it is more reasonable that valve body structure is set, and work more may be used
Lean on.
It is an advantage of the invention that：Compared with prior art, structure setting of the present invention is more reasonable, nickel-base alloy metal c-type
Axial dynamic sealing is enclosed, promotes valve seat to produce piston effect, nickel-base alloy metal c-type circle instead of original rubber loop material, dash forward
The use limitation in temperature has been broken, while has avoided conventional high temperature hard seal ball valve using carbon seal ring caused by high-temperature oxydation
Usage time is not long with regard to the problem of seal failure, reliable operation；And self sealss delta-ring is employed between valve body and end cap, from close
Seal c-type circle and the triple static seal designs of Graphite pad, it is ensured that the reliable sealing under worst hot case；Upper mounted plate and bottom plate
Design, reduce parts, improve reliability；Reasonable in design, simple in construction, good sealing effect, can effectively it prevent
Only dielectric leakage, service life length.
With reference to Figure of description and specific embodiment, the invention will be further described.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the structural representation of end cap of the embodiment of the present invention；
Fig. 3 is the structural representation of upper mounted plate of the embodiment of the present invention.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of HTHP hard seal ball valve disclosed by the invention, including valve body 1, the and of end cap 2
Upper lid 3, the valve pocket of the valve body 1 is interior to be provided with valve seat 4 and valve ball 5, and valve rod 6, the outer end of valve seat 4 are connected with the valve ball 5
Nickel-base alloy metal c-type circle 7 is provided with face, self sealss delta-ring 8, self sealss C are provided between the valve body 1 and end cap 2
Type circle 9 and Graphite pad 10, the upper end of valve ball 5 are socketed with upper mounted plate 11, and the lower end of valve ball 5 is socketed with bottom plate 12, institute
State upper mounted plate 11 and the left and right ends of bottom plate 12 are integrally provided with one piece of locating convex block 13, the inner face pair of end cap 2
Quasi- upper mounted plate 11 and bottom plate 12 position offers an end cap locating convex block matched with the locating convex block 13 and inserted
Groove 21, the end cap locating convex block of the locating convex block 13 of fixed plate 11 and bottom plate 12 one end respectively with sustained height are inserted
The plugged and fixed of groove 21, and some connecting bolts 14 are equipped with the end cap 2, the every outer end of connecting bolt 14 is threaded with
One locking nut 15, the end cap 2 are connected by connecting bolt 14 and locking nut 15 with valve body 1.
As preferable, step groove is set, and the nickel-base alloy metal c-type circle 7 is socketed on the outer face of the present embodiment valve seat 4
On step groove, and the inner face of the valve pocket internal face of the valve body and end cap 2 alignment step groove location of valve seat 4 is provided with being somebody's turn to do
The step of step groove matching.This technical scheme, designed using fixing ball valve piston valve base, be adapted to high pressure operating mode.
Self sealss delta-ring 8, self sealss c-type circle 9 and Graphite pad 10 between the valve body 1 and end cap 2 are existing
Product, and self sealss delta-ring 8, self sealss c-type circle 9 and Graphite pad 10 are set gradually from the inside to the outside.
To make structure of the present invention more reasonable, as preferable, the upper end of valve body 1 is provided with a valve rod described in the present embodiment
Through hole 16, the upper end of stem through-hole 16 are provided with a upper lid locating notch, and the side of the upper lid locating notch is the conical surface
161, the upper lower surface of lid 3 is provided with the static seal conical surface 31 matched with the upper lid locating notch；The middle part of upper lid 3 is set
A valve rod mounting hole 32 is equipped with, the lower port of valve rod mounting hole 32 is provided with a upper lid inner conical surface 321, the valve rod 6
The upper position of lid inner conical surface 321 is provided with valve rod male cone (strobilus masculinus) 61.Upper cover design has two conical surface sealing structures, the He of the conical surface 161
The static seal conical surface 31 is dynamic equal angular conical surface seal, and is realized by matching grinding technics；Upper lid inner conical surface 321 and valve
For static difference angle conical surface seal, (about 1-2 ° of angle difference, produces initial linear sealing effect to bar male cone (strobilus masculinus) 61.
Resistance to oxidation high temperature filler 17 is filled between the inwall of the valve rod 6 and valve rod mounting hole 32.As preferable, sheet
Embodiment resistance to oxidation high temperature filler 17 is the solid power spy's filler of existing high temperature.
Fixed plate 11 is identical with the structure of bottom plate 12, fixed plate 11 and bottom plate 12 left and right ends
Locating convex block 13 be square block, and upper mounted plate 11 and the left and right ends locating convex block 13 of bottom plate 12 are symmetrical arranged, on
Fixed plate 11 and the middle part of bottom plate 12 are provided with a fixed plate positioning hole 18 coordinated with the valve ball.
The upper end of valve ball 5 is provided with upper mounted plate locating notch 51, and the lower end of valve ball 5 is provided with bottom plate positioning
Breach 52.
The position of end cap locating convex block slot 21 on the valve pocket internal face alignment inner face of end cap 2 of the valve body 1 is respectively provided with
There is valve body locating convex block slot 19.
During practical application, nickel-base alloy metal c-type circle axial direction dynamic sealing, valve seat is promoted to produce piston effect, nickel-base alloy
Metal c-type circle instead of original rubber loop material, breach the use limitation in temperature, while it is firmly close to avoid conventional high temperature
Blocking valve using carbon seal ring because usage time is not long with regard to the problem of seal failure caused by high-temperature oxydation, reliable operation；And valve
Self sealss delta-ring, self sealss c-type circle and the triple static seal designs of Graphite pad are employed between body and end cap, it is ensured that in high temperature
Reliable sealing under operating mode；The design of upper mounted plate and bottom plate, reduces parts, improves reliability；Structure design
Rationally, simple in construction, good sealing effect, dielectric leakage, service life length can effectively be prevented.
Above-described embodiment is served only for that the present invention is further described, it is impossible to be interpreted as to the specific descriptions of the present invention
Limiting the scope of the present invention, it is non-that the technician of this area according to the content of foregoing invention makes some to the present invention
The modifications and adaptations of essence are each fallen within protection scope of the present invention.
Claims (6)
1. a kind of HTHP hard seal ball valve, including valve body (1), end cap (2) and upper lid (3), in the valve pocket of the valve body (1)
Provided with valve seat (4) and valve ball (5), valve rod (6) is connected with the valve ball (5), it is characterised in that：Valve seat (4) outer face
On be provided with nickel-base alloy metal c-type circle (7), be provided between the valve body (1) and end cap (2) self sealss delta-ring (8), from
C-type circle (9) and Graphite pad (10) are sealed, valve ball (5) upper end is socketed with upper mounted plate (11), the socket of valve ball (5) lower end
There is bottom plate (12), fixed plate (11) and bottom plate (12) left and right ends are integrally provided with one piece of locating convex block
(13), end cap (2) inner face alignment upper mounted plate (11) and bottom plate (12) position offer one with it is described fixed
The end cap locating convex block slot (21) of position projection (13) matching, the positioning of fixed plate (11) and bottom plate (12) one end
Projection (13) end cap locating convex block slot (21) plugged and fixed with sustained height respectively, and the end cap (2) if on be equipped with
Dry root connecting bolt (14), every connecting bolt (14) outer end are threaded with a locking nut (15), and the end cap (2) is logical
Connecting bolt (14) and locking nut (15) is crossed to be connected with valve body (1).
A kind of 2. HTHP hard seal ball valve according to claim 1, it is characterised in that：Valve body (1) upper end is set
A stem through-hole (16) is equipped with, stem through-hole (16) upper end is provided with a upper lid locating notch, the upper lid positioning
The side of breach is the conical surface (161), and described upper lid (3) lower surface is provided with the static seal cone matched with the upper lid locating notch
Face (31)；A valve rod mounting hole (32) is provided with the middle part of the upper lid (3), valve rod mounting hole (32) lower port is provided with
One upper lid inner conical surface (321), the valve rod (6) are located at upper lid inner conical surface (321) position and are provided with valve rod male cone (strobilus masculinus) (61).
A kind of 3. HTHP hard seal ball valve according to claim 2, it is characterised in that：The valve rod (6) and valve rod
Resistance to oxidation high temperature filler (17) is filled between the inwall of mounting hole (32).
A kind of 4. HTHP hard seal ball valve according to claim 1 or 2 or 3, it is characterised in that：Fixed plate
(11) it is identical with bottom plate (12) structure, the locating convex block of fixed plate (11) and bottom plate (12) left and right ends
(13) it is square block, and upper mounted plate (11) and bottom plate (12) left and right ends locating convex block (13) are symmetrical arranged, it is upper solid
A fixed plate positioning hole (18) coordinated with the valve ball is provided with the middle part of fixed board (11) and bottom plate (12).
A kind of 5. HTHP hard seal ball valve according to claim 4, it is characterised in that：Valve ball (5) upper end is set
Upper mounted plate locating notch (51) is equipped with, valve ball (5) lower end is provided with bottom plate locating notch (52).
A kind of 6. HTHP hard seal ball valve according to claim 5, it is characterised in that：The valve pocket of the valve body (1)
End cap locating convex block slot (21) position on internal face alignment bonnet (2) inner face is provided with valve body locating convex block slot
(19)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610429563.1A CN105909821B (en) | 2016-06-16 | 2016-06-16 | A kind of HTHP hard seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610429563.1A CN105909821B (en) | 2016-06-16 | 2016-06-16 | A kind of HTHP hard seal ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105909821A CN105909821A (en) | 2016-08-31 |
| CN105909821B true CN105909821B (en) | 2018-01-12 |
Family
ID=56751300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610429563.1A Active CN105909821B (en) | 2016-06-16 | 2016-06-16 | A kind of HTHP hard seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105909821B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191616B (en) * | 2017-06-16 | 2019-12-13 | 无锡斯考尔自动控制设备有限公司 | Ultrahigh pressure metal sealing ball valve |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5868378A (en) * | 1997-01-28 | 1999-02-09 | Fisher Controls International, Inc. | Throttling control in a fluid control valve |
| CN201250918Y (en) * | 2007-09-17 | 2009-06-03 | 温州球豹阀门有限公司 | Dual-elastic sliding seal stiff-seal high-temperature high-pressure ball valve |
| CN203322364U (en) * | 2013-07-12 | 2013-12-04 | 凯瑞特阀业有限公司 | Ball valve with hard-seal valve base |
| CN103711930B (en) * | 2013-12-13 | 2015-12-16 | 四川大学 | A kind of orbit ball valve |
| CN205207745U (en) * | 2015-11-28 | 2016-05-04 | 宁波会德丰铜业有限公司 | Floating ball valve |
| CN205715778U (en) * | 2016-06-16 | 2016-11-23 | 五洲阀门股份有限公司 | A kind of High Temperature High Pressure hard seal ball valve |
-
2016
- 2016-06-16 CN CN201610429563.1A patent/CN105909821B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105909821A (en) | 2016-08-31 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Jiantian Inventor after: Chen Xinghan Inventor after: Ge Xiangping Inventor after: Zheng Yifeng Inventor after: Li Junhui Inventor after: Chen Changben Inventor after: Ye Kaiqiang Inventor after: Jiang Yilong Inventor before: Hu Jiantian Inventor before: Chen Xinghan Inventor before: Ge Xiangping Inventor before: Li Junhui Inventor before: Chen Changben Inventor before: Wu Zhiqiang |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A high temperature and high pressure hard sealing ball valve Effective date of registration: 20211115 Granted publication date: 20180112 Pledgee: Zhejiang Commercial Bank Co.,Ltd. Wenzhou Longwan sub branch Pledgor: WUZHOU VALVE Co.,Ltd. Registration number: Y2021330002216 |