CN105546135A - Two-way metal-sealed balanced type internal part structure for sleeve valve - Google Patents
Two-way metal-sealed balanced type internal part structure for sleeve valve Download PDFInfo
- Publication number
- CN105546135A CN105546135A CN201610072379.6A CN201610072379A CN105546135A CN 105546135 A CN105546135 A CN 105546135A CN 201610072379 A CN201610072379 A CN 201610072379A CN 105546135 A CN105546135 A CN 105546135A
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- CN
- China
- Prior art keywords
- spool
- valve
- sleeve
- packing ring
- metallic packing
- 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
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a two-way metal-sealed balanced type internal part structure, in particular to a two-way metal-sealed balanced type internal part structure for a sleeve valve, and belongs to the technical field of regulating valves. According to the technical scheme, the two-way metal-sealed balanced type internal part structure for the sleeve valve comprises a sleeve and a valve element capable of moving in the sleeve; a balanced ring seat which is coaxially distributed with the sleeve is supported on the sleeve, the valve element is sleeved with a metal sealing ring located between the valve element and the balanced ring seat, a ring seat sealing point is formed after the waist part of the metal sealing ring and the balanced ring seat are tightly pressed, a valve element upper sealing point and a valve element lower sealing point are formed after the metal sealing ring and the outer wall of the valve element are tightly pressed, and the valve element lower sealing point and the valve element upper sealing point are located on the two sides of the ring seat sealing point respectively. According to the two-way metal-sealed balanced type internal part structure for the sleeve valve, the structure is compact, the sealing effect is good, the sleeve valve can not only bear the pressure generated when media flow in the open flow direction, but also can bear the pressure generated when the media flow in the close flow direction, the application range is wide, and the safety and the reliability are achieved.
Description
Technical field
The present invention relates to a kind of bidirectional metal sealing balance type inner parts structure, especially a kind of telescoping valve bidirectional metal sealing balance type inner parts structure, belongs to the technical field of modulating valve.
Background technique
At present, in the industries such as chemical industry, iron and steel, metallurgy, oil, electric power, telescoping valve is applicable to the advantages such as High Pressure Difference operating mode, dynamic stability is high, actuator's thrust requirements is little because of it, makes it be widely used in various occasion.Along with the development in epoch and the innovation of technology, on-the-spot various operating mode gets over complexity, the requirement of production technology to valve also improves day by day, wherein just there is High Temperature High Pressure difference operating mode, MEDIA FLOW is to the operating mode that in use may change because of technological requirement simultaneously, under this operating mode, just needs valve can meet high temperature high voltage resistant requirement, the requirement of two way sealed can be met again, and traditional telescoping valve be just difficult to simultaneously economical, reliably meet these requirements.Traditional telescoping valve inner parts structure regulates the sleeve of window to form by spool, valve rod, band, the seal form of spool and sleeve has two kinds: one seals with two hard sealing surface structures, there are two sealing surfaces in this structure valve core and sleeve simultaneously, must ensure that two sealing surfaces all seal simultaneously and just can make valve seal, this kind of structure processing cost is high, sealing grade is low, safeguard, the cost of overhaul is high, and because high temperature action, greatly, High Pressure Difference operating mode very easily makes valve produce concussion, controls shakiness, valve stem crack etc. extremely for spool, cage guiding gap; The seal form of another kind of telescoping valve is that lower end uses hard sealing, upper end uses nonmetal sealing, as the seal ring seal such as tetrafluoro, graphite, this kind of mode reduces the processing request of part, sealing grade is high, but because seal ring material is nonmetallic material, be not suitable for the operating mode containing molecule in some high temperature and medium.Therefore how solving from structure that telescoping valve is high temperature resistant, High Pressure Difference has again reliable and stable two way sealed problem simultaneously, is a great problem of industry.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of telescoping valve bidirectional metal sealing balance type inner parts structure is provided, its compact structure, sealing effect, telescoping valve can be made both can to have born MEDIA FLOW to being pressure when stream is opened, also MEDIA FLOW can be born to being pressure when stream closes, wide accommodation, safe and reliable.
According to technological scheme provided by the invention, described telescoping valve bidirectional metal sealing balance type inner parts structure, the spool comprising sleeve and can move in described sleeve; Described sleeve is supported with the balance ring seat of coaxial distribution, metallic packing ring is had at described valve core upper sleeve, described metallic packing ring is positioned between spool and balance ring seat, ring seat seal point is formed after the waist of described metallic packing ring and balance ring seat compress, form seal point and spool lower seal point on spool respectively after the outer wall of metallic packing ring and spool compresses, on described spool lower seal point, spool, seal point lays respectively at the both sides of ring seat seal point.
Be provided with in metallic packing ring for the lower energization spring that described metallic packing ring and spool are fitted tightly at spool lower seal point and the upper energization spring fitted tightly for the seal point on spool by described metallic packing ring and spool.
The cross section of described metallic packing ring arcuately.
Described spool and balance ring seat are all installed in valve body, described valve body arranges valve gap, is provided with valve rod in described valve gap, and described valve rod to penetrate in spool and is fixedly connected with described spool.
Advantage of the present invention: metallic packing ring is positioned at balance ring seat and valve core chamber, utilizing metallic packing ring to form seal point and spool lower seal point on ring seat seal point, spool can make telescoping valve both can bear MEDIA FLOW to being pressure when stream is opened, also MEDIA FLOW can be born to being pressure when stream closes, reach the ability of two way sealed, because metallic packing ring and upper energization spring, lower energization spring are metal material, compare non-metallic material black box, be applicable to the medium of higher temperature, and the medium containing little solid particle can be born; Metallic packing ring has pressure self-sealing performance, and after medium flows into metallic packing ring, metallic packing ring distending, pressure is larger, and sealing effect is better, and compact structure is safe and reliable.
Accompanying drawing explanation
Fig. 1 is using state schematic diagram of the present invention.
Fig. 2 is the enlarged view of A in Fig. 1.
Fig. 3 is the sealing schematic diagram of medium of the present invention when opening from the lower end stream of spool.
Fig. 4 is that medium of the present invention flows sealing schematic diagram when closing from the upper end of spool.
Description of reference numerals: energization spring, the upper energization spring of 4-2-, 5-metallic packing ring, 6-ring seat seal point, 7-lower valve core seal point, 8-upper valve core seal point, 9-valve body, 10-packing box assembly, 11-valve rod, 12-pressing plate, 13-follower bolt, 14-clamp sleeve and 15-valve gap under 1-sleeve, 2-spool, 3-balance ring seat, 4-1-.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As depicted in figs. 1 and 2: in order to telescoping valve can be made both can to have born MEDIA FLOW to being pressure when stream is opened, MEDIA FLOW can also be born to being pressure when stream closes, the spool 2 that the present invention includes sleeve 1 and can move in described sleeve 1; Described sleeve 1 is supported with the balance ring seat 3 of coaxial distribution, on described spool 2, cover has metallic packing ring 5, described metallic packing ring 5 is positioned between spool 2 and balance ring seat 3, the waist of described metallic packing ring 5 compresses rear formation ring seat seal point 6 with balance ring seat 3, form seal point 8 and spool lower seal point 7 on spool respectively after metallic packing ring 5 and the outer wall of spool 2 compress, on described spool lower seal point 7, spool, seal point 8 lays respectively at the both sides of ring seat seal point 6.
Particularly, spool 2 and sleeve 1 are in coaxial distribution, and the outer wall of spool 2 contacts with the inwall of sleeve 1, and spool 2 can make upper and lower straight line motion in sleeve 1.Balance ring seat 3 is supported on the top of sleeve 1, and metallic packing ring 5 is positioned at the bottom of balance ring seat 3, and metallic packing ring 5 is positioned at the upper end outside spool 2.When throttle down, the lower end of spool 2 compresses with the upper end in sleeve 1 and contacts, thus forms hard sealing.On spool lower seal point 7, spool, seal point 8 is symmetric in the both sides of ring seat seal point 6.The outer wall of spool 2 is smooth tubular cylinder, spool lower seal point 7 is that the bottom of metallic packing ring 5 contacts with the outer circumferential walls of spool 2 ring structure formed, and on spool, seal point 8 is that the top of metallic packing ring 5 contacts with the outer circumferential walls of spool 2 ring structure formed.By the sealing configuration that seal point 8 on the ring seat seal point 6 of ring structure, spool lower seal point 7 and spool is formed, telescoping valve can being made both can to have born MEDIA FLOW to be pressure when stream is opened, also can bearing MEDIA FLOW to the pressure for flowing during pass.
Further, in metallic packing ring 5, be provided with the lower energization spring 4-1 for described metallic packing ring 5 and spool 2 being fitted tightly at spool lower seal the point 7 and upper energization spring 4-2 for being fitted tightly with spool 2 seal point 8 on spool by described metallic packing ring 5.
In the embodiment of the present invention, the cross section of described metallic packing ring 5 arcuately.Metallic packing ring 5 is between balance ring seat 3 and spool 2, metallic packing ring 5 around spool 2 in outer ring, lower energization spring 4-1, upper energization spring 4-2 are all positioned at metallic packing ring 5, lower energization spring 4-1, upper energization spring 4-2 are also looped around the outer ring of spool 2, utilize lower energization spring 4-1 to fasten the lower end of metallic packing ring 5, the outer wall of the lower end of metallic packing ring 5 and spool 2 is more fitted tightly; In like manner, in utilization, energization spring 4-2 can fasten the lower end of metallic packing ring 5, and the upper end of metallic packing ring 5 more can be fitted tightly with the outer wall of spool 2, can reach the sealability strengthening seal point 8, spool lower seal point 7 on spool.
Further, described spool 2 and balance ring seat 3 are all installed in valve body 9, described valve body 9 arranges valve gap 15, is provided with valve rod 11 in described valve gap 15, and described valve rod 11 to penetrate in spool 2 and is fixedly connected with described spool 2.
Usually, spool 2, balance ring seat 3 are all installed in valve body 9, valve body 9 has MEDIA FLOW entrance and the MEDIA FLOW that is communicated with described MEDIA FLOW entrance exports, by the motion of spool 2 in sleeve 1, the adjustment to the connected state between MEDIA FLOW entrance, MEDIA FLOW outlet can be realized, detailed process, known by the art personnel, repeats no more herein.Valve gap 15 is fixedly connected with valve body 9 by bolt etc., and valve gap 15 is positioned at directly over balance ring seat 3, utilizes valve gap 15 balance ring seat 3 to be pressed in valve body 9.Valve rod 11 and valve gap 15, balance ring seat 3 and spool 2 in coaxial distribution.Top in valve gap 15 is provided with for airtight and watertight padding letter assembly 10, also comprises the hold-down mechanism for compressing described packing box assembly 10.Described hold-down mechanism comprises the clamping sleeve 14 be enclosed within valve rod 11, described clamping sleeve 14 is positioned at above packing box assembly 10, the lower end of clamping sleeve 14 contacts with packing box assembly 10, the upper end of clamping sleeve 14 contacts with pressure strip 12, and pressure strip 12 is fixedly supported on the top of valve gap 15 by hold-down bolt 13.
When after valve closing, described spool 2 lower end and described sleeve 1 lower end compress to be formed and firmly seal, when MEDIA FLOW is to when opening for stream, as shown in Figure 3, medium is flowed into by metallic packing ring 5 lower end, by metallic packing ring 5 lower end distending, to fasten metallic packing ring 5 lower end with energization spring 4-1 at present, make itself and spool gluing, sealing tighter.When MEDIA FLOW is to when closing for stream, as shown in Figure 4, medium is injected by metallic packing ring 5 upper end, by metallic packing ring 5 upper end distending, go up energization spring 4-2 to fasten metallic packing ring 5 upper end simultaneously, make itself and spool 2 gluing, sealing tighter, thus two media flowed to can be sealed, form bidirectional metal sealing.
Claims (4)
1. a telescoping valve bidirectional metal sealing balance type inner parts structure, the spool (2) comprising sleeve (1) and can move in described sleeve (1), it is characterized in that: the balance ring seat (3) being supported with coaxial distribution on described sleeve (1), metallic packing ring (5) is had at the upper cover of described spool (2), described metallic packing ring (5) is positioned between spool (2) and balance ring seat (3), ring seat seal point (6) is formed after the waist of described metallic packing ring (5) and balance ring seat (3) compress, seal point on spool (8) and spool lower seal point (7) is formed respectively after metallic packing ring (5) and the outer wall of spool (2) compress, described spool lower seal point (7), on spool, seal point (8) lays respectively at the both sides of ring seat seal point (6).
2. telescoping valve bidirectional metal sealing balance type inner parts structure according to claim 1, is characterized in that: in metallic packing ring (5), be provided with the lower energization spring (4-1) for described metallic packing ring (5) and spool (2) being fitted tightly at spool lower seal point (7) and the upper energization spring (4-2) for described metallic packing ring (5) and spool (2) seal point (8) on spool being fitted tightly.
3. telescoping valve bidirectional metal sealing balance type inner parts structure according to claim 1 and 2, is characterized in that: the cross section of described metallic packing ring (5) arcuately.
4. telescoping valve bidirectional metal sealing balance type inner parts structure according to claim 1, it is characterized in that: described spool (2) and balance ring seat (3) are all installed in valve body (9), described valve body (9) is arranged valve gap (15), be provided with valve rod (11) in described valve gap (15), described valve rod (11) to penetrate in spool (2) and is fixedly connected with described spool (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072379.6A CN105546135A (en) | 2016-02-01 | 2016-02-01 | Two-way metal-sealed balanced type internal part structure for sleeve valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072379.6A CN105546135A (en) | 2016-02-01 | 2016-02-01 | Two-way metal-sealed balanced type internal part structure for sleeve valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105546135A true CN105546135A (en) | 2016-05-04 |
Family
ID=55825548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610072379.6A Pending CN105546135A (en) | 2016-02-01 | 2016-02-01 | Two-way metal-sealed balanced type internal part structure for sleeve valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105546135A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3490232A (en) * | 1966-08-11 | 1970-01-20 | Philip Sidney Baldwin | Seal,particularly for a piston in the master cylinder of a hydraulic brake system |
| CN103994243A (en) * | 2014-05-14 | 2014-08-20 | 吴忠仪表有限责任公司 | Novel sealing structure of control valve |
| CN104676012A (en) * | 2015-02-10 | 2015-06-03 | 无锡智能自控工程股份有限公司 | Bilateral balanced sealing ring component for sleeve valve |
| CN204878721U (en) * | 2015-07-20 | 2015-12-16 | 李斯特技术中心（上海）有限公司 | W type sealing washer |
| CN205504024U (en) * | 2016-02-01 | 2016-08-24 | 无锡智能自控工程股份有限公司 | Two -way metal seal balanced type internals structure of telescoping valve |
-
2016
- 2016-02-01 CN CN201610072379.6A patent/CN105546135A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3490232A (en) * | 1966-08-11 | 1970-01-20 | Philip Sidney Baldwin | Seal,particularly for a piston in the master cylinder of a hydraulic brake system |
| CN103994243A (en) * | 2014-05-14 | 2014-08-20 | 吴忠仪表有限责任公司 | Novel sealing structure of control valve |
| CN104676012A (en) * | 2015-02-10 | 2015-06-03 | 无锡智能自控工程股份有限公司 | Bilateral balanced sealing ring component for sleeve valve |
| CN204878721U (en) * | 2015-07-20 | 2015-12-16 | 李斯特技术中心（上海）有限公司 | W type sealing washer |
| CN205504024U (en) * | 2016-02-01 | 2016-08-24 | 无锡智能自控工程股份有限公司 | Two -way metal seal balanced type internals structure of telescoping valve |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |
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| RJ01 | Rejection of invention patent application after publication |