CN102022560B - Pressure-filled sealing valve - Google Patents
Pressure-filled sealing valve Download PDFInfo
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- CN102022560B CN102022560B CN 201010603751 CN201010603751A CN102022560B CN 102022560 B CN102022560 B CN 102022560B CN 201010603751 CN201010603751 CN 201010603751 CN 201010603751 A CN201010603751 A CN 201010603751A CN 102022560 B CN102022560 B CN 102022560B
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- sealing
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- seal ring
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Abstract
The invention relates to a pressure-filled sealing valve. The pressure-filled sealing valve comprises a valve body, a pressure-filled sealing ring, a graphite sealing ring, a graphite sealing ring compression ring, a valve plate, an inner baffle ring, a driving rod, a pressure filling port and a blowing port, wherein the valve plate is a rectangular flat plate, the left end of the valve plate is provided with a round hole, one end of the valve plate is connected with the driving rod, and the valve plate can slide in a cavity of the valve body leftwards and rightwards; the upper end of the pressure-filled sealing ring is fixed with the valve body through a bolt; a connecting plate is provided with a hole for filling pressure; the inner baffle ring is fixed with the connecting plate through a bolt; the graphite sealing ring is fixed on a sealing seat through the graphite sealing ring compression ring by a bolt; and the valve body is provided with the pressure filling port communicated with the pressure-filled sealing ring and the blowing port communicated with a blowing channel between the inner baffle ring and the connecting plate. By using the pressure-filled sealing valve, the sealing form of a sealing surface is changed, a sealing structure is optimized, the service life is prolonged, the sealing effect is good, and the defects of clamping stagnation and strain at a high temperature are overcome.
Description
Technical field
The present invention relates to the industries such as a kind of Ferrous Metallurgy that is applied in pipe control, chemical industry, mainly play the pressure-filled sealing valve of the cut-out in control valve road and the soft seal of unlatching effect+hard sealing.
Background technique
Present employed valve, its seal form mainly contains three kinds of forms: cemented carbide sealing pair, cemented carbide add the soft seal pair, cemented carbide adds the hard alloy and adds the soft seal pair, sealing configuration: gate valve for example, the valve seal seat is the wedge shaped plate of two symmetries, valve plate also is a wedge shaped plate.Reach sealing with contacting of taper hole with regard to being equivalent to taper pin during sealing.As for adding just not introduced of soft seal, because my the applicable operating mode of pressure-filled sealing valve of invention is: high-risk medium, high temperature (more than 500 ℃), many dust.Technical requirements: can work under the high temperature, leakage class need reach the top grade among the GB/13927.Present gate valve since during switch motion stroke long, easily pull sealing pair, sealing effect is undesirable.Particularly under the operating mode of high temperature, the medium that is pernicious to people, valve is substantially inapplicable, and with also increasing in addition Safeguard, risk is larger if any.The butterfly valve seal grade does not generally reach yet, and is easily stuck under the high temperature, equally inapplicable above-mentioned operating mode yet.
Summary of the invention
Problem to be solved by this invention is to provide a kind of pressure-filled sealing valve for above-mentioned situation, and it has resistant to elevated temperatures advantage, can reach more than 500 ℃, and sealability is better, and financial cost is moderate.
The present invention adopts solution to be: pressure-filled sealing valve, it is characterized in that including valve body, pressurized type seal ring, carbon seal ring, carbon seal ring pressure ring, valve plate, inner baffle ring, driveshaft, pressurising interface and purge interface, described valve plate is rectangular flat plate, its left end is opened circular hole, one end of valve plate is connected with driveshaft, it can horizontally slip in the cavity of valve body, the upper end of described pressurized type seal ring is fixed by bolt and valve body, has the hole on the described connecting plate and is used for pressurising; Described inner baffle ring is fixed by bolt and connecting plate, carbon seal ring is fixed by bolts on the sealing seat by the carbon seal ring pressure ring, described valve body is provided with the pressurising interface and purges interface, the pressurising interface communicates with the pressurized type seal ring, purges interface and communicates with purge passage between inner baffle ring and the connecting plate.
Press such scheme, described pressurized type seal ring includes connecting plate, expansion ring and sealing seat, and expansion ring is comprised of two indent annulus and outer recessed annulus, and expansion ring is connected with connecting plate and sealing seat respectively, thereby forms a sealing ring cavity.
Press such scheme, the described wall thickness that goes out expansion ring is 1.2-3mm.
Working principle of the present invention: because upper end and the valve body of pressurized type seal ring are fixed, lower end sealing pair (carbon seal ring+cemented carbide sealing surface (black entity packed layer bottom plane, carbon seal ring next door among Fig. 3, the cemented carbide of expression built-up welding)) valve plate is unsettled relatively, when valve plate slides into off-position, by the sealing ring cavity pressurising of pressurising interface to the pressurized type seal ring, the expansion ring pressurized produces downward displacement, with sealing surface compact to valve plate, thereby reach the effect of sealing.When valve plate is opened, the Seal cage pressure release, expansion ring return upwards under self elastic force effect drives sealing surface and breaks away from valve plate, and valve plate is realized unlatching under the frictionless situation.
The present invention has changed the seal form of sealing surface, has optimized sealing configuration, compares with common valve, and advantage is as follows: the using scope that 1) has increased greatly valve; 2) pressurized type sealing.Owing to without friction, having increased working life between sealing pair; 3) double sealing structure, good sealing effect, and carbon seal ring and seal ring are replaceable; 4) except seal ring, the processing of all the other workpiece is simpler, and quality is more stable; 5) sealing pair is owing to being floating seal, thereby the defective of at high temperature having avoided clamping stagnation, having pulled.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the A place enlarged diagram of Fig. 1;
Fig. 4 is the structural representation of pressurized type seal ring of the present invention.
Embodiment
Further introduce the present invention below by embodiment, but embodiment can not be construed as limiting the invention.
Shown in Fig. 1-4, pressure-filled sealing valve, include valve body 1, pressurized type seal ring 5, carbon seal ring 7, carbon seal ring pressure ring 6, valve plate 3, inner baffle ring 4, driveshaft 9, pressurising interface 2 and purging interface 8, described valve body 1 is the structural member of integral solder, valve plate 3 is rectangular flat plate, its left end is opened circular hole, one end of valve plate 3 is connected with driveshaft 9, it is positioned at the cavity of valve body and can horizontally slips at the cavity of valve body, valve body is provided with pressurising interface 2, the upper end of described pressurized type seal ring 5 is fixed by bolt and valve body, be convenient to processing and dismounting, described pressurized type seal ring includes connecting plate 10, expansion ring 11 and sealing seat 12, expansion ring 11 is comprised of two indent annulus and outer recessed annulus, and the described wall thickness that goes out expansion ring 11 is 1.2-3mm, and expansion ring is connected with connecting plate 10 and sealing seat 12 respectively, thereby form a sealing ring cavity, have the hole on the described connecting plate 10 and be used for pressurising; Described inner baffle ring 4 is fixing by bolt and connecting plate 10, carbon seal ring 7 is fixed by bolts on the sealing seat 12 by carbon seal ring pressure ring 6, described valve body 1 is provided with the pressurising interface and purges interface, the pressurising interface communicates with pressurized type seal ring 5, purges interface and communicates with purge passage between inner baffle ring 4 and the connecting plate 10.
As Figure 1-3: valve plate 3 is moved horizontally to (closed loop) behind the close stance by driveshaft 9, to purging interface 8 inflated with nitrogen, impurity between the sealing pair [surface of contact of valve plate and carbon seal ring 7 and sealing seat 12], dust etc. are purged clean by purge passage, and then by pressurising interface 2 to sealing ring cavity pressurising, because connecting plate 10 is fixed with valve body and is sealed, the expansion ring compressive deformation drives sealing seat 12 and produces displacements downwards, and cemented carbide sealing surface and the carbon seal ring (fixing with sealing seat) of sealing seat is pressed on the valve plate simultaneously.When valve plate is opened, sealing ring cavity pressure release, seal ring breaks away from valve plate by self the elastic strip motive sealing seat return that makes progress.Then valve plate is moved horizontally to out position (open loop), valve open by driveshaft.And so forth circulation.
Claims (3)
1. pressure-filled sealing valve, it is characterized in that including valve body (1), pressurized type seal ring (5), carbon seal ring (7), carbon seal ring pressure ring (6), valve plate (3), inner baffle ring (4), driveshaft (9), pressurising interface (2) and purging interface (8), described valve plate (3) is rectangular flat plate, its left end is opened circular hole, one end of valve plate (3) is connected with driveshaft (9), it can horizontally slip in the cavity of valve body, the upper end of described pressurized type seal ring (5) is fixed by bolt and valve body, described pressurized type seal ring includes connecting plate (10), has the hole on the described connecting plate (10) and is used for pressurising; Described inner baffle ring (4) is fixing by bolt and connecting plate (10), carbon seal ring (7) is fixed by bolts on the sealing seat (12) by carbon seal ring pressure ring (6), described valve body (1) is provided with the pressurising interface and purges interface, the pressurising interface communicates with pressurized type seal ring (5), purges interface and communicates with purge passage between inner baffle ring (4) and the connecting plate (10).
2. by pressure-filled sealing valve claimed in claim 1, it is characterized in that described pressurized type seal ring also includes expansion ring (11) and sealing seat (12), expansion ring (11) is comprised of two indent annulus and outer recessed annulus, expansion ring is connected with connecting plate (10) and sealing seat (12) respectively, thereby forms a sealing ring cavity.
3. by pressure-filled sealing valve claimed in claim 2, the wall thickness that it is characterized in that described expansion ring (11) is 1.2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010603751 CN102022560B (en) | 2010-12-24 | 2010-12-24 | Pressure-filled sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010603751 CN102022560B (en) | 2010-12-24 | 2010-12-24 | Pressure-filled sealing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102022560A CN102022560A (en) | 2011-04-20 |
| CN102022560B true CN102022560B (en) | 2013-02-13 |
Family
ID=43864187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010603751 Expired - Fee Related CN102022560B (en) | 2010-12-24 | 2010-12-24 | Pressure-filled sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102022560B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455511B (en) * | 2013-09-22 | 2017-04-12 | 中国石化工程建设有限公司 | Large-caliber high-temperature wear-resistant flat gate valve |
| CN105135034B (en) * | 2015-08-12 | 2017-06-20 | 山东电力研究院 | A kind of pneumatic insertion plate door of pulverized coal channel that can be anti-jamming and its method of work |
| CN108361376B (en) * | 2017-12-28 | 2020-07-24 | 铜陵日科电子有限责任公司 | Sealing cover for transformer oil immersion machine |
| CN108506497B (en) * | 2018-07-06 | 2023-12-22 | 中国科学院上海高等研究院 | Plastic sealing ring and shutdown sealing device with same |
| CN112023867A (en) * | 2020-07-20 | 2020-12-04 | 盘锦泓实环保科技有限公司 | Reactor for preparing magnesium sulfate from alkylation waste acid |
| CN116928359B (en) * | 2023-09-01 | 2024-05-14 | 江苏博特威流体科技有限公司 | Pressurizing type sealing valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5087017A (en) * | 1989-01-10 | 1992-02-11 | Irie Koken Kabushiki Kaisha | Valve body for non-sliding type gate valve |
| CN2293686Y (en) * | 1996-12-16 | 1998-10-07 | 瑞安市求精自动化仪表阀厂 | High-temperature automatic compensation metal sealing ring |
| CN2296429Y (en) * | 1997-01-13 | 1998-11-04 | 宝山钢铁(集团)公司 | Pressurized butterfly seal valve |
| CN2697405Y (en) * | 2004-04-28 | 2005-05-04 | 浙江方圆阀门制造有限公司 | Self pressurizing type plane gate valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61104862U (en) * | 1984-12-17 | 1986-07-03 |
-
2010
- 2010-12-24 CN CN 201010603751 patent/CN102022560B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5087017A (en) * | 1989-01-10 | 1992-02-11 | Irie Koken Kabushiki Kaisha | Valve body for non-sliding type gate valve |
| CN2293686Y (en) * | 1996-12-16 | 1998-10-07 | 瑞安市求精自动化仪表阀厂 | High-temperature automatic compensation metal sealing ring |
| CN2296429Y (en) * | 1997-01-13 | 1998-11-04 | 宝山钢铁(集团)公司 | Pressurized butterfly seal valve |
| CN2697405Y (en) * | 2004-04-28 | 2005-05-04 | 浙江方圆阀门制造有限公司 | Self pressurizing type plane gate valve |
Non-Patent Citations (1)
| Title |
|---|
| JP昭61-104862U 1986.07.03 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102022560A (en) | 2011-04-20 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20201224 |