CN104089041A - Valve combined type sealing structure and method thereof - Google Patents
Valve combined type sealing structure and method thereof Download PDFInfo
- Publication number
- CN104089041A CN104089041A CN201410332072.6A CN201410332072A CN104089041A CN 104089041 A CN104089041 A CN 104089041A CN 201410332072 A CN201410332072 A CN 201410332072A CN 104089041 A CN104089041 A CN 104089041A
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- Prior art keywords
- valve
- packing
- pull bar
- ring
- layers
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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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a valve combined type sealing structure and a method of the structure. The structure comprises a padding pressing plate, a padding pressing sleeve, four layers of packing, a dustproof ring, a linkage part, a sealing ring, a spring, a middle ring, a valve base and a valve push-and-pull rod, wherein the middle ring is in bolted connection with the linkage part, the linkage part is in clearance fit with the valve push-and-pull rod, the valve base is in bolted connection with the middle ring, the valve base is in bolted connection with the dustproof ring, the four layers of packing are in interference fit with the valve push-and-pull rod, the packing pressing sleeve is in clearance fit with the valve push-and-pull rod, the packing pressing plate is in clearance fit with the valve push-and-pull rod, the valve push-and-pull rod is sleeved with the spring in a hollow mode, and the sealing ring is in interference fit with the valve push-and-pull rod. The valve combined type sealing structure is high in strength, resistant to heat, corrosion and washing, low in friction coefficient and good in self-lubricating performance, and has the higher flexible and resilience capability and floating performance. The structure improves the sealing performance of a gate valve, the air cylinder corrosion and clamping phenomenon is greatly reduced, the service life of the gate valve is obviously prolonged, and the practicability and maintenance cost of the valve is effectively reduced.
Description
Technical field
The present invention relates to the box-like sealing configuration of a kind of valve sets and method thereof, particularly for the sealing of double valve plates gate valve.
Background technique
Sealing is good Yu the bad major criterion of gate valve.In order to prevent being entered cylinder by the medium of choked flow along valve pull bar, cause corrosion and the obstruction of cylinder interior, thereby affect the normal use of gate valve, therefore, gate valve must be accomplished good sealing.
Conventionally, the sealing of gate valve is realized by seal ring and valve pull bar interference fit, but this encapsulating method is under the operating mode of high temperature, high-pressure medium, be easy to cause dielectric leakage and cause seal failure, and need to often change seal ring, make the maintenance cost of gate valve increase, these problems are perplexing user always.
Summary of the invention
the object of the invention is to overcome the deficiencies in the prior art, the box-like sealing configuration of valve sets and method thereof are provided.
The box-like sealing configuration of a kind of valve sets comprises hold-down grid, filler pressing sleeve, four layers of packing, dust ring, coupling, seal ring, spring, central ring, valve seat, valve pull bar; Central ring is connected with coupling bolt, coupling and valve pull bar Spielpassung, valve seat is connected with central ring bolt, valve seat is connected with dust ring bolt, four layers of packing and valve pull bar interference fit, filler pressing sleeve and valve pull bar Spielpassung, hold-down grid and valve pull bar Spielpassung, spring empty set on valve pull bar, seal ring and valve pull bar interference fit.
The first layer of four layers of described packing and the 4th layer of employing carbon fiber packing, the second layer adopts teflon packing, and the 3rd layer adopts flexible graphite stuffing.
The box-like encapsulating method of valve sets of described structure is: the liquid of sealing, gas medium leak through dust ring, four layers of packing, seal ring successively along valve pull bar;
Dust ring is connected with valve seat bolt, and with valve pull bar interference fit, stop liquid, the gas medium of leakage, realize sealing for the first time; Hold-down grid and filler pressing sleeve compress four layers of packing, and due to the effect of expanding with heat and contract with cold, spring plays the effect that regulates impacting force, and four layers of packing stop with valve pull bar interference fit liquid, the gas medium that penetrates dust ring, realize for the second time and sealing; Seal ring and valve pull bar interference fit, stop the liquid, the gas medium that penetrate four layers of packing, realizes sealing for the third time; Conventionally this three leakage proof sealings, seal process is complete.
The effect of having a mind to that the present invention compared with prior art has is, not only intensity is high can to guarantee packing for sealing, heat-and corrosion-resistant, antiscour, and friction factor is low, and self-lubricating property is good, and there is very high flexibility, resilience and unsteady performance, the mixed fillers of Expanded graphite and teflon, has significantly improved anti-shearing, the tensility of packing, and is conducive to produce labyrinth effect.Being used in combination of four layers of packing and twice seal ring, has significantly improved the sealability of gate valve, and cylinder corrosion and stuck phenomenon greatly reduce, and have obviously increased the working life of gate valve, for user has saved maintenance cost greatly.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the box-like sealing configuration of valve sets;
In figure, hold-down grid 1, filler pressing sleeve 2, four layers of packing 3, dust ring 4, coupling 5, seal ring 6, spring 7, central ring 8, valve seat 9, valve pull bar 10.
Embodiment
As shown in Figure 1, the box-like sealing configuration of a kind of valve sets comprises hold-down grid 1, filler pressing sleeve 2, four layers of packing 3, dust ring 4, coupling 5, seal ring 6, spring 7, central ring 8, valve seat 9, valve pull bar 10; Central ring 8 is connected with coupling 5 bolts, coupling 5 and valve pull bar 10 Spielpassung, valve seat 9 is connected with central ring 8 bolts, valve seat 9 is connected with dust ring 4 bolts, four layers of packing 3 and valve pull bar 10 interference fit, filler pressing sleeve 2 and valve pull bar 10 Spielpassung, hold-down grid 1 and valve pull bar 10 Spielpassung, spring 7 empty sets on valve pull bar 10, seal ring 6 and valve pull bar 10 interference fit.
The first layer of four layers of described packing 3 and the 4th layer of employing carbon fiber packing, the second layer adopts teflon packing, and the 3rd layer adopts flexible graphite stuffing.
The box-like encapsulating method of valve sets of described structure is as follows:
Need the liquid, gas medium of sealing through dust ring 4, four layers of packing 3, seal ring 6, to leak successively along valve pull bar 10;
Dust ring 4 is connected with valve seat 9 bolts, and with valve pull bar 10 interference fit, stop liquid, the gas medium of leakage, realize sealing for the first time; Hold-down grid 1 and filler pressing sleeve 2 compress four layers of packing 3, and due to the effect of expanding with heat and contract with cold, spring 7 plays the effect that regulates impacting force, and four layers of packing 3 stop with valve pull bar 10 interference fit liquid, the gas medium that penetrates dust ring 4, realize sealing for the second time; Seal ring 6 and valve pull bar 10 interference fit, stop the liquid, the gas medium that penetrate four layers of packing 3, realizes sealing for the third time; Conventionally this three leakage proof sealings, realize the liquid of needs sealing, the sealing of gas medium.
Claims (3)
1. the box-like sealing configuration of valve sets, is characterized in that comprising hold-down grid (1), filler pressing sleeve (2), four layers of packing (3), dust ring (4), coupling (5), seal ring (6), spring (7), central ring (8), valve seat (9), valve pull bar (10); Central ring (8) is connected with coupling (5) bolt, coupling (5) and valve pull bar (10) Spielpassung, valve seat (9) is connected with central ring (8) bolt, valve seat (9) is connected with dust ring (4) bolt, four layers of packing (3) and valve pull bar (10) interference fit, filler pressing sleeve (2) and valve pull bar (10) Spielpassung, hold-down grid (1) and valve pull bar (10) Spielpassung, spring (7) empty set is upper at valve pull bar (10), seal ring (6) and valve pull bar (10) interference fit.
2. the box-like sealing configuration of a kind of valve sets according to claim 1, is characterized in that the first layer of described four layers of packing (3) and the 4th layer adopt carbon fiber packing, and the second layer adopts teflon packing, and the 3rd layer adopts flexible graphite stuffing.
3. implement the box-like encapsulating method of valve sets of structure as claimed in claim 1, it is characterized in that: the liquid of sealing, gas medium pass through successively dust ring (4), four layers of packing (3), seal ring (6) along valve pull bar (10) and leaks;
Dust ring (4) is connected with valve seat (9) bolt, and with valve pull bar (10) interference fit, stop liquid, the gas medium of leakage, realize sealing for the first time; Hold-down grid (1) and filler pressing sleeve (2) compress four layers of packing (3), due to the effect of expanding with heat and contract with cold, spring (7) plays the effect that regulates impacting force, four layers of packing (3) stop with valve pull bar (10) interference fit liquid, the gas medium that penetrates dust ring (4), realize sealing for the second time; Seal ring (6) and valve pull bar (10) interference fit, stop the liquid, the gas medium that penetrate four layers of packing (3), realizes sealing for the third time; Conventionally this three leakage proof sealings, seal process is complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332072.6A CN104089041B (en) | 2014-07-14 | 2014-07-14 | The box-like hermetically-sealed construction of valve sets and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332072.6A CN104089041B (en) | 2014-07-14 | 2014-07-14 | The box-like hermetically-sealed construction of valve sets and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104089041A true CN104089041A (en) | 2014-10-08 |
| CN104089041B CN104089041B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410332072.6A Active CN104089041B (en) | 2014-07-14 | 2014-07-14 | The box-like hermetically-sealed construction of valve sets and method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN104089041B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224579A (en) * | 2016-08-28 | 2016-12-14 | 淳安千岛湖科利达耐磨阀门有限公司 | Oscillatory valve |
| CN106370594A (en) * | 2016-10-14 | 2017-02-01 | 河南科技大学 | Method and device for measuring key technical parameters of packing-plate spring floating sealing system |
| CN109883624A (en) * | 2019-04-11 | 2019-06-14 | 招商局重庆交通科研设计院有限公司 | A kind of waterproof test equipment designed using cylinder |
| CN112096874A (en) * | 2020-08-31 | 2020-12-18 | 东台市光明机械密封有限公司 | High-wear-resistance double-end-face mechanical sealing element and machining process thereof |
| CN112297360A (en) * | 2020-10-26 | 2021-02-02 | 王书旭 | Injection mold that breaks away from fast |
| CN112377277A (en) * | 2020-11-27 | 2021-02-19 | 大唐陕西发电有限公司 | Push-pull rod sealing structure of steam turbine |
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| US5238252A (en) * | 1990-01-18 | 1993-08-24 | Eisenwerk Heinrich Schilling Gmbh & Co. | Shut-off fittings with a sealing device |
| CN1236422A (en) * | 1996-10-31 | 1999-11-24 | 费希尔控制国际公司 | Bushing-less stem guide control valve |
| CN201661763U (en) * | 2010-03-11 | 2010-12-01 | 浙江固特气动机械有限公司 | Gate valve |
| US20100320411A1 (en) * | 2009-06-19 | 2010-12-23 | King Ralph E | Double containment valve system |
| CN201925592U (en) * | 2010-09-13 | 2011-08-10 | 秦皇岛中青冶金阀门有限公司 | Oil chamber type gate valve sealing structure |
| CN102330820A (en) * | 2011-08-24 | 2012-01-25 | 江苏华青流体科技有限公司 | Mechanical seal device |
| CN203948678U (en) * | 2014-07-14 | 2014-11-19 | 浙江固特气动机械有限公司 | The box-like sealing configuration of a kind of valve sets |
-
2014
- 2014-07-14 CN CN201410332072.6A patent/CN104089041B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5238252A (en) * | 1990-01-18 | 1993-08-24 | Eisenwerk Heinrich Schilling Gmbh & Co. | Shut-off fittings with a sealing device |
| CN1236422A (en) * | 1996-10-31 | 1999-11-24 | 费希尔控制国际公司 | Bushing-less stem guide control valve |
| US20100320411A1 (en) * | 2009-06-19 | 2010-12-23 | King Ralph E | Double containment valve system |
| CN201661763U (en) * | 2010-03-11 | 2010-12-01 | 浙江固特气动机械有限公司 | Gate valve |
| CN201925592U (en) * | 2010-09-13 | 2011-08-10 | 秦皇岛中青冶金阀门有限公司 | Oil chamber type gate valve sealing structure |
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| CN203948678U (en) * | 2014-07-14 | 2014-11-19 | 浙江固特气动机械有限公司 | The box-like sealing configuration of a kind of valve sets |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224579A (en) * | 2016-08-28 | 2016-12-14 | 淳安千岛湖科利达耐磨阀门有限公司 | Oscillatory valve |
| CN106370594A (en) * | 2016-10-14 | 2017-02-01 | 河南科技大学 | Method and device for measuring key technical parameters of packing-plate spring floating sealing system |
| CN106370594B (en) * | 2016-10-14 | 2019-02-01 | 河南科技大学 | Packing-leaf spring floating seal system core technical parameter measuring method and device |
| CN109883624A (en) * | 2019-04-11 | 2019-06-14 | 招商局重庆交通科研设计院有限公司 | A kind of waterproof test equipment designed using cylinder |
| CN109883624B (en) * | 2019-04-11 | 2024-03-15 | 招商局重庆交通科研设计院有限公司 | Water tightness test equipment adopting cylindrical surface design |
| CN112096874A (en) * | 2020-08-31 | 2020-12-18 | 东台市光明机械密封有限公司 | High-wear-resistance double-end-face mechanical sealing element and machining process thereof |
| CN112096874B (en) * | 2020-08-31 | 2022-11-08 | 东台市光明机械密封有限公司 | High-wear-resistance double-end-face mechanical sealing element and machining process thereof |
| CN112297360A (en) * | 2020-10-26 | 2021-02-02 | 王书旭 | Injection mold that breaks away from fast |
| CN112377277A (en) * | 2020-11-27 | 2021-02-19 | 大唐陕西发电有限公司 | Push-pull rod sealing structure of steam turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104089041B (en) | 2016-05-18 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 324401 No. 18, Shao Lu, town, Quzhou Town, Longyou County, Zhejiang, China Applicant after: ZHEJIANG GUTE PNEUMATIC MACHINERY Co.,Ltd. Address before: 324401 No. 18, Shao Lu, town, Quzhou Town, Longyou County, Zhejiang, China Applicant before: ZHEJIANG GUTE PNEUMATIC MACHINERY Co.,Ltd. |
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| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Valve combination sealing structure and its method Effective date of registration: 20230925 Granted publication date: 20160518 Pledgee: Zhejiang Longyou rural commercial bank Limited by Share Ltd. Pledgor: ZHEJIANG GUTE PNEUMATIC MACHINERY Co.,Ltd. Registration number: Y2023330002178 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |