CN104295764A - Forced sealing ball valve - Google Patents
Forced sealing ball valve Download PDFInfo
- Publication number
- CN104295764A CN104295764A CN201410500895.5A CN201410500895A CN104295764A CN 104295764 A CN104295764 A CN 104295764A CN 201410500895 A CN201410500895 A CN 201410500895A CN 104295764 A CN104295764 A CN 104295764A
- Authority
- CN
- China
- Prior art keywords
- valve
- spheroid
- ball valve
- seal ball
- forced seal
- 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.)
- Granted
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
- 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
-
- 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
- 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)
- Lift Valve (AREA)
Abstract
The invention discloses a forced sealing ball valve which mainly solves the problems that when a valve rod machines a spiral groove, a forced sealing ball valve (track ball valve) in the prior art highly depends on high-grade, high-precision and advanced equipment, and the production cost is high; on the other hand, the opening and closing time is long, and quick opening and closing can not be achieved. The forced sealing ball valve is characterized in that a valve rod (4) and a ball (3) are arranged in an eccentric mode and synchronously rotate in the circumferential direction, the ball (3) comprises a first position (33) where a sealing ring (32) and a valve seat (5) abut against each other when the valve is fully closed and a second position (34) where the sealing ring (32) is far from the valve seat (5) when the valve is fully opened. According to the forced sealing ball valve, the valve rod and the ball synchronously rotating are arranged in the eccentric mode to open and close the valve, the spiral groove does not need to be machined in the valve rod, machining is simple, the ball directly rotates and does not need to deflect by a certain angle in the rotating process, and the forced sealing ball valve can be opened and closed quickly and is long in service life.
Description
Technical field
The invention belongs to ball valve field, particularly a kind of forced seal ball valve.
Background technique
Traditional ball valve, no matter be floating type or fixed, spheroid contacts all the time with valve seat, switching torque is large, and sealing surface easily damages, and traditional forced seal ball valve (orbit ball valve) is when opening and closing, spheroid first deflects several angle, then rotate, in whole switch overall process, spheroid and valve seat depart from completely, therefore valve seat can not be scratched.So with the structural advantage of its uniqueness, reliable sealability, show up prominently at industry-by-industry in recent years, troublesome conventional ball valve has been instead of in many occasions, and it also belongs to high-tech, high-performance, high value-added product, but present forced seal ball valve is when valve rod processing spiral chute, too high to the dependency degree of high-grade, precision and advanced process equipment, and general device cannot be processed at all, cost of production is higher; On the other hand, switching time is longer, can not accomplish fast opening and closing.
Summary of the invention
In order to overcome the deficiency of background technique, the invention provides a kind of forced seal ball valve, mainly solve present forced seal ball valve when valve rod processing spiral chute, too high to the dependency degree of high-grade, precision and advanced process equipment, cost of production is higher; On the other hand, switching time is longer, can not accomplish the problem of fast opening and closing.
The technical solution adopted in the present invention is:
A kind of forced seal ball valve, comprise valve body, valve gap, spheroid and valve rod, described valve body is connected with valve gap, described stem bottom is connected with described spheroid, the valve seat corresponding with spheroid is provided with in described valve body, described spheroid is provided with sealing surface, described valve rod with described spheroid eccentric setting and synchronous circumference rotate, the second place that when described spheroid comprises valve complete shut-down, seal ring is separated with valve seat with seal ring during valve wide open with the primary importance that valve seat top is pressed.
Be threaded connection between described valve seat and valve body.
Described spheroid lower end is connected with lower shaft, is provided with bearing in described valve body, and described bearing forms with described lower shaft adaptation and is flexibly connected.
Described lower shaft lower end is spheroidal structure.
Described valve gap is provided with greasing hole and the grease pouring valve corresponding with greasing hole, also comprise the first spacer ring and stuffing box packing, described first spacer ring and stuffing box packing are all located at outside valve rod, and the inner of described first spacer ring is corresponding with greasing hole, and outer end and described stuffing box packing are fitted.
Described valve gap lower end has been threaded valve stem casing, and described valve stem casing is sheathed on outside valve rod, is also provided with the second spacer ring between the upper end portion of described valve stem casing and stuffing box packing, and press fit is pushed up in upper-end surface and the second spacer ring lower end surface of described valve stem casing.
Described spheroid is made into integration by forged steel.
On described sealing surface, heap is welded with cemented carbide.
Described cemented carbide is stellite.
The invention has the beneficial effects as follows: the invention provides a kind of forced seal ball valve, the valve rod of eccentric setting synchronous axial system and spheroid is adopted to carry out opening/shutting valve, its valve rod does not need to process spiral chute, processing is simple, when rotating, spheroid directly rotates does not need to deflect several angle, opening and closing is rapid, long service life.
Accompanying drawing explanation
Fig. 1 is the sectional view of one embodiment of the invention.
Fig. 2 is the schematic diagram of the spheroid primary importance of one embodiment of the invention.
Fig. 3 is the schematic diagram of the spheroid second place of one embodiment of the invention.
Fig. 4 is one embodiment of the invention Figure 1B place enlarged view.
Fig. 5 is Figure 1A place enlarged view of one embodiment of the invention.
Fig. 6 is Fig. 1 C place enlarged view of one embodiment of the invention.
In figure, valve body 1, valve gap 2, spheroid 3, valve rod 4, valve seat 5, sealing surface 32, primary importance 33, the second place 34, bearing 13, lower shaft 31, greasing hole 21, grease pouring valve 22, the first spacer ring 23, stuffing box packing 25, the second spacer ring 26.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described: as shown in Fig. 1 composition graphs 2 to Fig. 6, a kind of forced seal ball valve, comprise valve body 1, valve gap 2, spheroid 3 and valve rod 4, described valve body 1 is connected with valve gap 2, be connected with described spheroid 3 bottom described valve rod 4, the valve seat 5 corresponding with spheroid 3 is provided with in described valve body 1, described spheroid 3 is provided with sealing surface 32, described valve rod 4 with described spheroid 3 eccentric setting and synchronous circumference rotate, when described spheroid 3 comprises valve complete shut-down, seal ring 32 and valve seat 5 push up the second place 34 that the primary importance 33 of pressing is separated with valve seat 5 with seal ring during valve wide open 32.Valve is from closed positions to fully open position, and spheroid departs from completely from contacting to be sealed to valve seat, i.e. nothing friction in full switch process, and only turn-off transient contacts completely, thus eliminating the need the scratch factor of sealing surface; Its sealing is eccentric rotary by uniqueness, makes the sealing of spheroid and valve seat rely on a mechanical wedging power to ensure, and without the need to the help of pipeline pressure reduction.Structure is simple, easy to use, here valve rod can adopt common valve rod and do not need to use in traditional forced seal ball valve or orbit ball valve need precision machining spiral fluted valve rod, greatly reduce cost of production, the fitting surface between spheroid here and valve seat is preferably sealed and matched face firmly.The invention provides a kind of forced seal ball valve, adopt the valve rod of eccentric setting synchronous axial system and spheroid to carry out opening/shutting valve, its valve rod does not need to process spiral chute, processing is simple, when rotating, spheroid directly rotates does not need to deflect several angle, and opening and closing is rapid, long service life.
In the present invention, as shown in the figure, be threaded connection between described valve seat 5 and valve body 1.Structure is simple, and easy to assembly, using effect is good.
In the present invention, as shown in the figure, described spheroid 3 lower end is connected with lower shaft 31, is provided with bearing 13 in described valve body 1, and described bearing 13 forms with described lower shaft 31 adaptation and is flexibly connected.Rotate convenient, using effect is better, and reduces wear.
In the present invention, as shown in the figure, described lower shaft 31 lower end is spheroidal structure.Lower shaft 31 lower end is spheroidal structure, and bottom end face and the peripheral side of lower shaft are sphere, and therefore lower shaft 31 lower end is that spheroidal structure is similar to universal joint, can rotate arbitrarily within the scope of several angle, more simple when this kind of design can ensure that valve assembles.
In the present invention, as shown in the figure, described valve gap 2 is provided with greasing hole 21 and the grease pouring valve 22 corresponding with greasing hole 21, also comprise the first spacer ring 23 and stuffing box packing 25, described first spacer ring 23 and stuffing box packing 25 are all located at outside valve rod 4, the inner of described first spacer ring 23 is corresponding with greasing hole 21, and outer end and described stuffing box packing 25 are fitted.Valve gap is provided with greasing hole, and is injected by soft filler by greasing hole, uses convenient.
In the present invention, as shown in the figure, described valve gap 2 lower end has been threaded valve stem casing 6, and described valve stem casing 6 is sheathed on outside valve rod 4, also be provided with the second spacer ring 26 between the upper end portion of described valve stem casing 6 and stuffing box packing 25, press fit is pushed up in upper-end surface and second spacer ring 26 lower end surface of described valve stem casing 6.The valve stem casing 6 of down-mounting type can make filler part consolidation more, and relative to the leak point of structure owing to reducing of the Stuffing box of upper dress, so sealability is better, first and second spacer ring is made up of stainless steel, and using effect is better.
In the present invention, as shown in the figure, on described sealing surface 32, heap is welded with cemented carbide.Wear-resisting property is good, adds working life, also can adopt Tungsten carbite, nickel billon etc. here.
In the present invention, as shown in the figure, described cemented carbide is stellite.Stellite (stellite alloys) has high dimensional stability, and very high wear-resisting, anti-corrosion, anti-oxidant and anti-H 2 S stress crack (SSC) ability, using effect is good.
In the present invention, as shown in the figure, described spheroid 3 is made into integration by forged steel.Can adopt the forged steel such as A105, LF2, F304, F316 herein, manufacture simple, using effect is better.
Embodiment should not be considered as limitation of the present invention, but any improvement done based on spirit of the present invention, all should within protection scope of the present invention.
Claims (9)
1. a forced seal ball valve, comprise valve body (1), valve gap (2), spheroid (3) and valve rod (4), described valve body (1) is connected with valve gap (2), described valve rod (4) bottom is connected with described spheroid (3), the valve seat (5) corresponding with spheroid (3) is provided with in described valve body (1), described spheroid (3) is provided with sealing surface (32), it is characterized in that: described valve rod (4) with described spheroid (3) eccentric setting and synchronous circumference rotate, when described spheroid (3) comprises valve complete shut-down, seal ring (32) and valve seat (5) push up the second place (34) that the primary importance (33) of pressing is separated with valve seat (5) with seal ring during valve wide open (32).
2. a kind of forced seal ball valve according to claim 1, is characterized in that: be threaded connection between described valve seat (5) and valve body (1).
3. a kind of forced seal ball valve according to claim 2, it is characterized in that: described spheroid (3) lower end is connected with lower shaft (31), be provided with bearing (13) in described valve body (1), described bearing (13) and described lower shaft (31) adaptation forms and is flexibly connected.
4. a kind of forced seal ball valve according to claim 3, is characterized in that: described lower shaft (31) lower end is spheroidal structure.
5. a kind of forced seal ball valve according to claim 4, it is characterized in that: described valve gap (2) is provided with greasing hole (21) and the grease pouring valve (22) corresponding with greasing hole (21), also comprise the first spacer ring (23) and stuffing box packing (25), valve rod (4) outside is all located in described first spacer ring (23) and stuffing box packing (25), the inner of described first spacer ring (23) is corresponding with greasing hole (21), and outer end and described stuffing box packing (25) are fitted.
6. a kind of forced seal ball valve according to claim 5, it is characterized in that: described valve gap (2) lower end has been threaded valve stem casing (6), described valve stem casing (6) is sheathed on valve rod (4) outside, also be provided with the second spacer ring (26) between the upper end portion of described valve stem casing (6) and stuffing box packing (25), press fit is pushed up in upper-end surface and the second spacer ring (26) lower end surface of described valve stem casing (6).
7. a kind of forced seal ball valve according to claim 1, is characterized in that: described spheroid (3) is made into integration by forged steel.
8. a kind of forced seal ball valve according to claim 1, is characterized in that: the upper heap of described sealing surface (32) is welded with cemented carbide.
9. a kind of forced seal ball valve according to claim 8, is characterized in that: described cemented carbide is stellite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410500895.5A CN104295764B (en) | 2014-09-26 | 2014-09-26 | Forced sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410500895.5A CN104295764B (en) | 2014-09-26 | 2014-09-26 | Forced sealing ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104295764A true CN104295764A (en) | 2015-01-21 |
| CN104295764B CN104295764B (en) | 2017-05-17 |
Family
ID=52315619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410500895.5A Active CN104295764B (en) | 2014-09-26 | 2014-09-26 | Forced sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104295764B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704692A (en) * | 2015-07-23 | 2017-05-24 | 德维阀门铸造（苏州）有限公司 | Novel multi-rotation valve device |
| WO2017202151A1 (en) * | 2016-05-26 | 2017-11-30 | 刘晓琦 | Forced seal ball valve |
| CN109458468A (en) * | 2018-12-25 | 2019-03-12 | 成都中科智成科技有限责任公司 | A kind of novel orbit ball valve without the driving of frictional micro machine |
| CN113309871A (en) * | 2021-06-07 | 2021-08-27 | 自贡自高阀门有限公司 | Valve rod guide structure of forced sealing ball valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207204A (en) * | 2010-03-29 | 2011-10-05 | 上海美科阀门有限公司 | High-performance eccentric ball valve |
| CN202371204U (en) * | 2011-12-19 | 2012-08-08 | 圣博莱阀门有限公司 | Double-cone metal seal valve |
| CN102734484A (en) * | 2011-03-31 | 2012-10-17 | 上海耐莱斯·詹姆斯伯雷阀门有限公司 | Lifting rod-type ball valve |
| CN204114214U (en) * | 2014-09-26 | 2015-01-21 | 宣达实业集团有限公司 | A kind of forced seal ball valve |
-
2014
- 2014-09-26 CN CN201410500895.5A patent/CN104295764B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207204A (en) * | 2010-03-29 | 2011-10-05 | 上海美科阀门有限公司 | High-performance eccentric ball valve |
| CN102734484A (en) * | 2011-03-31 | 2012-10-17 | 上海耐莱斯·詹姆斯伯雷阀门有限公司 | Lifting rod-type ball valve |
| CN202371204U (en) * | 2011-12-19 | 2012-08-08 | 圣博莱阀门有限公司 | Double-cone metal seal valve |
| CN204114214U (en) * | 2014-09-26 | 2015-01-21 | 宣达实业集团有限公司 | A kind of forced seal ball valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704692A (en) * | 2015-07-23 | 2017-05-24 | 德维阀门铸造（苏州）有限公司 | Novel multi-rotation valve device |
| WO2017202151A1 (en) * | 2016-05-26 | 2017-11-30 | 刘晓琦 | Forced seal ball valve |
| CN109458468A (en) * | 2018-12-25 | 2019-03-12 | 成都中科智成科技有限责任公司 | A kind of novel orbit ball valve without the driving of frictional micro machine |
| CN109458468B (en) * | 2018-12-25 | 2023-12-12 | 成都中科智成科技有限责任公司 | Friction-free type micro-motor driven track ball valve |
| CN113309871A (en) * | 2021-06-07 | 2021-08-27 | 自贡自高阀门有限公司 | Valve rod guide structure of forced sealing ball valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104295764B (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203082226U (en) | Forge steel refrigeration valve | |
| CN104295764A (en) | Forced sealing ball valve | |
| CN104047640B (en) | A kind of brush seal structure of adjustable radial gap | |
| CN204114214U (en) | A kind of forced seal ball valve | |
| CN110778735B (en) | Soft and hard double sealing ball valve | |
| CN204025745U (en) | Modified model three-flat ball valve | |
| CN203836266U (en) | Upper-mounted self-sealing ball valve | |
| CN204396190U (en) | A kind of horizontal type scraper centrifuger rear bearing sealing device | |
| CN203627884U (en) | High-temperature and high-pressure ball valve | |
| CN203836245U (en) | Four-eccentricity all-metal both-way sealing butterfly valve | |
| CN204477473U (en) | cutting ball valve | |
| CN207316075U (en) | A kind of float grease seal | |
| CN204153147U (en) | Pumping anti-leak mechanical seal device | |
| CN107917205A (en) | A kind of soft seal three-eccentric-butterfly-valve | |
| CN104315147B (en) | A kind of power type non-contact type main shaft sealing device | |
| CN204533568U (en) | Split type valve seat self-adjusting seal three eccentric butterfly valve | |
| CN203131060U (en) | High-pressure corrugated pipe ball core cut-off valve | |
| CN105202218A (en) | Top assembly type corrugated fixed ball valve | |
| CN206972602U (en) | A kind of high-temperature water mechanical sealing device used for pump | |
| CN206600307U (en) | A kind of high-performance petrochemical industry centrifugal pump | |
| CN201396434Y (en) | Novel non-abrasion shaft oil seal | |
| CN218207914U (en) | High-temperature wear-resistant eccentric half-ball valve with elastic memory function | |
| CN203823063U (en) | Air door shaft sealing device of thermal power plant coal-pulverizing system | |
| CN203463847U (en) | Double mechanically-sealed rotary joint | |
| CN104455867A (en) | Double-mechanical-seal type rotary joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Qiang Inventor after: Shi Qingtai Inventor before: Zhang Wei |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |