CN104565377A - High-pressure end face sealing structure - Google Patents
High-pressure end face sealing structure Download PDFInfo
- Publication number
- CN104565377A CN104565377A CN201310499780.4A CN201310499780A CN104565377A CN 104565377 A CN104565377 A CN 104565377A CN 201310499780 A CN201310499780 A CN 201310499780A CN 104565377 A CN104565377 A CN 104565377A
- Authority
- CN
- China
- Prior art keywords
- hardness
- layer
- transition layer
- nonmetal
- sealing structure
- 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
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
Abstract
A high-pressure end face sealing structure comprises a non-metal layer and a metal layer and is characterized in that a non-metal transition layer is arranged between the non-metal layer and the metal layer, and the non-metal transition layer is lower than the non-metal layer in hardness. The high-pressure end face sealing structure can be machined by adopting a common lathe, machining efficiency and reliability are high, and the sealing performance is more reliable by adopting the low-hardness transition layer. The economic rationality is high, special process is omitted, a common device is adopted, required materials, energy and manpower are saved to the greatest extent, and the cost is lowest.
Description
Technical field
The present invention relates to high pressure end face movable sealing structure, particularly relate to and can meet a kind of metal of end face motive sealing under high gas pressure condition and the structure of nonmetal MULTIPLE COMPOSITE.
Background technique
In aerodynamic and field of sealing technology, the structural type of the sealing effect on sealing has conclusive impact, and the end face motive sealing under high gas pressure condition is one always and compares and be difficult to solve an industry difficult problem.
End face motive sealing under gas pressure condition often adopts seam and plane sealing form, and sealing plane wherein adopts nonmetallic material, and is fixedly connected to form " nonmetal-metal " assemblying body with metal.Soft " rubber-metal " double combinations can be adopted under usual below 10MPa pressure condition; Medium-hard " plastic-metal " double combinations can be adopted under 10MPa ~ 25MPa pressure condition; " plastic-metal of high hardness " can be adopted under more than 25MPa pressure condition to combine.
But " plastic-metal of high hardness " combination has a kind of significantly defect to be that its junction plane meets plane " hard-hard " feature due to approximate, is difficult to ensure sealing effect.
Along with social technology progress, market there is hot-forming, spraying, the comparatively ripe technology addressed this problem such as cementing, but these technology have, and state modulator requirement is high, process is loaded down with trivial details, high in cost of production feature, introduce a kind of MULTIPLE COMPOSITE high pressure end face movable sealing structure of easy and simple to handle, low cost herein.
Summary of the invention
The present invention is intended to the deficiency in technical solution background, by increasing the method for a nonmetal transition layer of middle low hardness between high hardness plastics and corrupt split face, provides a kind of efficient, cheap high pressure dynamic sealing structure.
In order to reach above-mentioned purpose, the invention provides a kind of high pressure end face movable sealing structure, it comprises: non-metallic layer, and metal layer, it is characterized in that, be provided with nonmetal transition layer between described non-metallic layer and described metal layer, the hardness of wherein said nonmetal transition layer is lower than the hardness of described degree non-metallic layer.
In some embodiments, described non-metallic layer is high hardness non-metallic layer.
In some embodiments, described nonmetal transition layer comprises the nonmetal transition layer of middle hardness or the nonmetal excessive layer of low hardness.
In some embodiments, described high hardness non-metallic layer is the non-metallic layer that can bear more than 25MPa pressure condition.
In some embodiments, the nonmetal transition layer of described middle hardness is the nonmetal transition layer that can bear 10MPa ~ 25MPa pressure condition.
In some embodiments, the nonmetal transition layer of described low hardness is the nonmetal transition layer that can bear below 10MPa pressure condition.
Adopt engine lathe to process according to sealing configuration of the present invention, work efficiency is high; Reliability is high, by the transition layer of slightly low hardness, seals more reliable; And economic feasibility is high, without special process, adopt common equipment, material requested, the energy and manpower are economized most, and network minimal is honest and clean.
By reference to the accompanying drawings, according to hereafter illustrate that the description of purport of the present invention can know other aspects of the present invention and advantage by example.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the structural drawing of the medium hardness continuous transition layer reduction of blood pressure in high-speed method that increases at " high hardness nonmetal-metal " junction plane according to a first embodiment of the present invention;
Fig. 2 shows medium hardness continuous transition layer reduction of blood pressure in high-speed method schematic diagram;
Fig. 3 is the unexpected voltage drop method structure increasing the hardness transition layer such as low at " high hardness nonmetal-metal " junction plane according to a second embodiment of the present invention; And
Fig. 4 shows the unexpected voltage drop method schematic diagram of low hardness transition layer.
Embodiment
See the accompanying drawing that the embodiment of the present invention is shown, hereafter in more detail the present invention will be described.But the present invention can realize in many different forms, and should not be construed as by the restriction in the embodiment of this proposition.On the contrary, it is abundant and complete open in order to reach for proposing these embodiments, and makes those skilled in the art understand scope of the present invention completely.In these accompanying drawings, for clarity sake, may be exaggerated size and the relative size in layer and region.
Should be understood that the part of description of the invention/be illustrated as individual unit can be present in the entity that two or more physically independent but cooperation realizes the function of described/diagram.In addition, describe/be illustrated as two or more physically independently part accessible site enter an independent physically entity to carry out described/illustrated function.
Description describes the high pressure end face movable sealing structure according to the embodiment of the present invention in detail.
Below in conjunction with accompanying drawing 1 ~ 2, by describing the first preferred embodiment in detail, the present invention is further elaborated.
As shown in Figure 1, non-metallic layer and metal layer is comprised according to a kind of high pressure end face movable sealing structure of the embodiment of the present invention.Be provided with nonmetal transition layer between described non-metallic layer and described metal layer, the hardness of wherein said nonmetal transition layer is lower than the hardness of described degree non-metallic layer.
In the present embodiment, described metal layer can be the end face being formed in and need carrying out the metalwork sealed, and can be any suitable metal and forms.
End face motive sealing under gas pressure condition often adopts seam and plane sealing form, and sealing plane wherein adopts nonmetallic material, and is fixedly connected to form " nonmetal-metal " assemblying body with metal.
Described non-metallic layer can be to be selected as required.Such as, soft " rubber-metal " double combinations can be adopted under usual below 10MPa pressure condition; Medium-hard " plastic-metal " double combinations can be adopted under 10MPa ~ 25MPa pressure condition; " plastic-metal of high hardness " can be adopted under more than 25MPa pressure condition to combine.
In the present embodiment, described non-metallic layer is high hardness non-metallic layer, that is, for bearing the non-metallic layer of more than 25MPa pressure condition.
As previously mentioned, the hardness of described nonmetal transition layer is lower than the hardness of described degree non-metallic layer.Therefore, described nonmetal transition layer can comprise the nonmetal transition layer of middle hardness, can bear the nonmetal transition layer of 10MPa ~ 25MPa pressure condition, or the nonmetal excessive layer of low hardness, can bear the nonmetal transition layer of below 10MPa pressure condition.
As shown in Figure 1, the nonmetal transition layer in the present embodiment is the nonmetal transition layer of middle hardness.In other words, the sealing configuration of the present embodiment is formed by three kinds of Material claddings: high hardness is nonmetal-and the nonmetal transition layer-metal of medium hardness.
Fig. 2 shows medium hardness continuous transition layer reduction of blood pressure in high-speed method schematic diagram.The nonmetal transition layer of medium hardness filling effect to metal nonmetal relative to high hardness is more excellent, and decline along seal f ace width directional pressure faster, sealing effect is better.Adopt this method original slower pressure drop can accelerated, in sealed width, realize pressure is in advance zero, realizes sealing.
By reference to the accompanying drawings 3 ~ 4, by describing the second preferred embodiment in detail, the present invention is further elaborated.Second embodiment is substantially identical with the first embodiment, just replaces the nonmetal transition layer of medium hardness with the nonmetal transition layer of low hardness.
As indicated at 3, the nonmetal transition layer in the present embodiment is the nonmetal transition layer of low hardness.In other words, the sealing configuration of the present embodiment is formed by three kinds of Material claddings: high hardness is nonmetal-and the nonmetal transition layer-metal of low hardness.
Fig. 4 shows the unexpected voltage drop method schematic diagram of low hardness transition layer.
The nonmetal transition layer of the hardness filling effect to metal nonmetal relative to high hardness such as low is more excellent, and decline along seal f ace width directional pressure faster, sealing effect is better.Adopting this method original slower pressure drop can be put bust at certain is zero, realizes sealing.
Tool according to the present invention has the following advantages.
(1) adopt engine lathe to process according to sealing configuration of the present invention, work efficiency is high;
(2) sealing configuration reliability according to the present invention is high, by the transition layer of slightly low hardness, seals more reliable; And
(3) sealing configuration economic feasibility according to the present invention is high, and without special process, adopt common equipment, material requested, the energy and manpower are economized most, and network minimal is honest and clean.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any reference character in claim should be considered as the claim involved by limiting.In addition, obviously " comprising " one word do not get rid of other unit or step, odd number does not get rid of plural number.Multiple unit of stating in system claims or device also can be realized by software or hardware by a unit or device.First, second word such as grade is used for representing title, and does not represent any specific order.
Claims (6)
1. a high pressure end face movable sealing structure, it comprises: non-metallic layer, and metal layer, it is characterized in that, be provided with nonmetal transition layer between described non-metallic layer and described metal layer, the hardness of wherein said nonmetal transition layer is lower than the hardness of described degree non-metallic layer.
2. high pressure end face movable sealing structure according to claim 1, is characterized in that, described non-metallic layer is high hardness non-metallic layer.
3. high pressure end face movable sealing structure according to claim 2, is characterized in that, described nonmetal transition layer comprises the nonmetal transition layer of middle hardness or the nonmetal excessive layer of low hardness.
4. high pressure end face movable sealing structure according to claim 2, is characterized in that, described high hardness non-metallic layer is the non-metallic layer that can bear more than 25MPa pressure condition.
5. high pressure end face movable sealing structure according to claim 2, is characterized in that, the nonmetal transition layer of described middle hardness is the nonmetal transition layer that can bear 10MPa ~ 25MPa pressure condition.
6. high pressure end face movable sealing structure according to claim 2, is characterized in that, the nonmetal transition layer of described low hardness is the nonmetal transition layer that can bear below 10MPa pressure condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310499780.4A CN104565377A (en) | 2013-10-23 | 2013-10-23 | High-pressure end face sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310499780.4A CN104565377A (en) | 2013-10-23 | 2013-10-23 | High-pressure end face sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104565377A true CN104565377A (en) | 2015-04-29 |
Family
ID=53082125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310499780.4A Pending CN104565377A (en) | 2013-10-23 | 2013-10-23 | High-pressure end face sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565377A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161087A (en) * | 2021-12-01 | 2022-03-11 | 上海航天设备制造总厂有限公司 | Method for processing valve assembly made of dissimilar materials |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4795174A (en) * | 1982-02-25 | 1989-01-03 | The Dow Chemical Company | High temperature-high pressure gasket assembly |
| CN2213890Y (en) * | 1992-09-10 | 1995-11-29 | 孙宝伟 | Compound sealed material and sealed spacer |
| US5975540A (en) * | 1996-12-27 | 1999-11-02 | Ishikawa Gasket Co., Ltd. | Gasket with compressible sealing section and hard pressure affecting section |
| CN2725642Y (en) * | 2004-08-31 | 2005-09-14 | 潘永椿 | Composite plane sealing pad |
| CN1867645A (en) * | 2003-10-10 | 2006-11-22 | 飞斯利德有限两合公司 | Flat sealing material in the form of a reinforced composite foil (composite film) |
| CN102011864A (en) * | 2010-08-30 | 2011-04-13 | 宋章根 | Rigid-flexible composite sealing ring |
-
2013
- 2013-10-23 CN CN201310499780.4A patent/CN104565377A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4795174A (en) * | 1982-02-25 | 1989-01-03 | The Dow Chemical Company | High temperature-high pressure gasket assembly |
| CN2213890Y (en) * | 1992-09-10 | 1995-11-29 | 孙宝伟 | Compound sealed material and sealed spacer |
| US5975540A (en) * | 1996-12-27 | 1999-11-02 | Ishikawa Gasket Co., Ltd. | Gasket with compressible sealing section and hard pressure affecting section |
| CN1867645A (en) * | 2003-10-10 | 2006-11-22 | 飞斯利德有限两合公司 | Flat sealing material in the form of a reinforced composite foil (composite film) |
| CN2725642Y (en) * | 2004-08-31 | 2005-09-14 | 潘永椿 | Composite plane sealing pad |
| CN102011864A (en) * | 2010-08-30 | 2011-04-13 | 宋章根 | Rigid-flexible composite sealing ring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161087A (en) * | 2021-12-01 | 2022-03-11 | 上海航天设备制造总厂有限公司 | Method for processing valve assembly made of dissimilar materials |
| CN114161087B (en) * | 2021-12-01 | 2023-11-28 | 上海航天设备制造总厂有限公司 | Processing method of valve assembly composed of dissimilar materials |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102650342B (en) | Piston type compound sealing axial flow type check valve | |
| CN102748497B (en) | Ultra-low temperature top-mounted type ball valve | |
| CN104565377A (en) | High-pressure end face sealing structure | |
| CN204284430U (en) | The combination sealing arrangement of swing-in high-pressure self-tightening sealing | |
| CN202972035U (en) | Reversed zero leakage one-way valve | |
| CN203868392U (en) | Fixed ball valve applicable to high-temperature working conditions | |
| CN102537381B (en) | Two-way hard sealing butterfly valve | |
| CN203549194U (en) | Sealing gasket for conical connecting piece of pipeline bulb | |
| CN106287040A (en) | A kind of triple seal union | |
| CN206206317U (en) | A kind of reinforcement hydraulic cylinder | |
| CN203857049U (en) | Piston rod seal with oil-returning slots and quartering hammer with piston rod seal | |
| CN204459259U (en) | Based on the spheroid of laser melting and coating process | |
| CN202531537U (en) | Piston for hydraulic oil cylinder | |
| CN204782907U (en) | Core is glued to multistage sealed rotating blowout preventer | |
| CN103508049B (en) | High-temperature-rescylinder cylinder material double-bottom-sealinbag bag | |
| CN208431308U (en) | A kind of assembly type push pipe buffering spacer | |
| CN202646855U (en) | Novel high-pressure large-diameter all-welded ball valve | |
| CN103264107A (en) | Fastening tool for fastening tubular member | |
| CN202812327U (en) | Check structure for valve | |
| CN203730390U (en) | Dynamic-pressure and static-pressure mechanical sealing combined type nuclear main pump shaft seal device with parking sealing function | |
| CN203420876U (en) | Oil well pump oil inlet valve | |
| CN204127011U (en) | A kind of oil hydraulic cylinder Y-shaped ring | |
| CN203999790U (en) | A kind of elasticity shaft type film coating roller | |
| CN202274099U (en) | Pressure-equalizing type multi-level sealing structure of hydraulic cylinder | |
| Peng et al. | Establishment and application of a new combined solution model for water cut prediction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |
|
| WD01 | Invention patent application deemed withdrawn after publication |