CN112283349A - Bidirectional W-shaped metal thin-wall sealing ring - Google Patents

Bidirectional W-shaped metal thin-wall sealing ring Download PDF

Info

Publication number
CN112283349A
CN112283349A CN202011082355.1A CN202011082355A CN112283349A CN 112283349 A CN112283349 A CN 112283349A CN 202011082355 A CN202011082355 A CN 202011082355A CN 112283349 A CN112283349 A CN 112283349A
Authority
CN
China
Prior art keywords
sealing ring
shaped
shaped metal
sealing
double
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
Application number
CN202011082355.1A
Other languages
Chinese (zh)
Inventor
顾超
杨蓓
罗炳亮
何少飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanchang Hangkong University
Original Assignee
Nanchang Hangkong University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanchang Hangkong University filed Critical Nanchang Hangkong University
Priority to CN202011082355.1A priority Critical patent/CN112283349A/en
Publication of CN112283349A publication Critical patent/CN112283349A/en
Pending legal-status Critical Current

Links

Images

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
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • 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
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid

Abstract

The invention discloses a bidirectional W-shaped metal sealing ring, which has an annular core structure, wherein the cross section of the double W-shaped metal sealing ring is back-to-back, one W-shaped metal sealing ring has an inward opening and the other W-shaped metal sealing ring has an outward opening, wave troughs on the upper side and the lower side of the double W are hermetically welded, and a sealed cavity is formed in the middle of the double W-shaped metal sealing ring. Compared with the existing W-shaped sealing ring, the contact area of the double-W sealing ring and the flange plate is twice that of a single-W sealing ring, the contact area is increased, and the sealing performance is better; the sealing ring has the characteristics of an inward single-W-shaped sealing ring and an outward single-W-shaped sealing ring, can be used for sealing inwards and outwards, and has richer available scenes; the gas in the middle sealing cavity has an expansion recovery effect after being pressed and unloaded, which is beneficial to improving resilience; the sealing ring structure is compact, tight and solid, and can bear larger axial load; the structural strength of the design is higher, and the stability is stronger.

Description

Bidirectional W-shaped metal thin-wall sealing ring
Technical Field
The invention relates to the technical field of engine sealing rings, in particular to a bidirectional W-shaped metal thin-wall sealing ring.
Background
The sealing device is an indispensable important part in modern fluid machinery as a device for preventing leakage and external impurities and dust from entering the inside of a working environment in an electromechanical product. The W-shaped metal sealing ring is widely applied to fifth-generation engines due to the excellent sealing performance of the W-shaped metal sealing ring.
The W-shaped sealing ring guarantees sealing, simultaneously considers the advantages of large axial compression displacement, moderate rigidity, good rebound resilience and the like, has the difficult vibration following performance and durability, and can provide stable sealing under the conditions of high temperature and high pressure for aerospace equipment. But the working environment is complex (high temperature and high pressure, frequent vibration and strong corrosivity), the performance requirement is high (moderate rigidity, good sealing performance, high strength, good vibration following performance and long service life), and meanwhile, the structure is simple, the metal wall is thin, so that the design and the manufacture are not easy. Therefore, a bidirectional W-shaped sealing ring is provided on the basis of a single W-shaped sealing ring, and compared with the traditional W-shaped sealing ring, the contact area of the double W-shaped sealing ring and a flange plate is twice that of the single W-shaped sealing ring, the contact area is increased, and the sealing performance is better; the sealing ring has the characteristics of an inward single-W-shaped sealing ring and an outward single-W-shaped sealing ring, can be used for sealing inwards and outwards, and has richer available scenes; the sealing ring structure is compact, tight and solid, and can bear larger axial load; the structural strength of the design is higher, and the stability is stronger.
Disclosure of Invention
The invention aims to solve the problems that: the bidirectional W-shaped metal thin-wall sealing ring is high in strength, good in rebound resilience, good in stability and simple in design; the sealing ring has the function of bidirectional sealing inwards and outwards; the axial compression capacity is strong, the contact area with the flange plate is large, double-layer sealing can be realized, and the sealing performance is good.
The technical scheme provided by the invention for solving the problems is as follows: a bidirectional W-shaped metal thin-wall sealing ring has a ring-shaped core structure, the cross section of the ring is a double-W shape which is arranged in a back-to-back manner, and the W-shaped wave troughs are fixedly connected in a back-to-back manner; one W-shaped opening is radially inward, the other W-shaped opening is radially outward, the upper side and the lower side of the double W-shaped openings are in contact with the flange plate, and the two wave troughs are fixedly connected together.
Preferably, the wave troughs on the upper side and the lower side are welded in a sealing mode, and a sealing cavity is formed in the middle.
Compared with the prior art, the invention has the advantages that: the bidirectional W-shaped metal sealing ring is stronger in axial load bearing, not easy to yield and deform, high in strength and good in stability; the sealing ring has large contact area with the flange plate, double-layer sealing and good sealing performance; the sealing ring can be used for inward sealing and outward sealing, and one ring has multiple purposes; and fourthly, the gas in the middle sealing cavity has an expansion recovery effect after being pressed and unloaded, and the rebound resilience is favorably improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic view of a bidirectional W-shaped metal seal ring structure (the right side is a top view, the left side is a cross-sectional view)
The attached drawings are marked as follows: 1. a sealing ring; 2. a trough of a wave; 3. sealing the cavity;
Detailed Description
The following detailed description of the embodiments of the present invention will be provided with reference to the accompanying drawings and examples, so that how to implement the embodiments of the present invention by using technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.
The specific embodiment of the invention is shown in fig. 1, which is a bidirectional W-shaped metal sealing ring, the core structure of which is annular, the cross section of which is a double W-shaped ring arranged back to back, one W-shaped ring has an inward opening, the other W-shaped ring has an outward opening, the upper and lower sides of the double W-shaped ring are in contact with a flange, and two W wave troughs are fixedly connected together; the wave troughs on the upper side and the lower side are welded in a sealing way, and a sealing cavity is formed in the middle.
The specific working principle of the invention is as follows: the bidirectional W-shaped metal sealing ring is arranged between the flange plates with axial compression, high-temperature and high-pressure airflow flows in from the flange rings and flows to the nested flange rings, due to the structural design requirement, the flange rings and the nested flange rings adopt a split design, the sealing ring is arranged between the two flange rings and is compressed, and the airflow sealing between the flanges can be realized; the bidirectional W-shaped metal sealing ring can be arranged between different flange rings to realize radial inward or outward gas sealing; the bidirectional W-shaped metal sealing ring structure has higher strength and can bear larger axial load; meanwhile, the double-layer sealing is realized, the contact area with the flange ring is larger, and the sealing performance is better.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure or material may be changed. All changes which come within the scope of the invention as defined by the independent claims are intended to be embraced therein.

Claims (2)

1. The utility model provides a two-way W type metal thin wall ring of obturating which characterized in that: the core structure is ring-shaped, the ring section is a double-W shape which is set back to back, the W-shaped wave trough is fixed back to back; one W-shaped opening is radially inward, the other W-shaped opening is radially outward, the upper side and the lower side of the double W-shaped openings are in contact with the flange plate, and the two wave troughs are fixedly connected together.
2. The bidirectional W-shaped metal thin-wall sealing ring as claimed in claim 1, wherein: the wave troughs on the upper side and the lower side are welded in a sealing way, and a sealing cavity is formed in the middle.
CN202011082355.1A 2020-10-12 2020-10-12 Bidirectional W-shaped metal thin-wall sealing ring Pending CN112283349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011082355.1A CN112283349A (en) 2020-10-12 2020-10-12 Bidirectional W-shaped metal thin-wall sealing ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011082355.1A CN112283349A (en) 2020-10-12 2020-10-12 Bidirectional W-shaped metal thin-wall sealing ring

Publications (1)

Publication Number Publication Date
CN112283349A true CN112283349A (en) 2021-01-29

Family

ID=74496089

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011082355.1A Pending CN112283349A (en) 2020-10-12 2020-10-12 Bidirectional W-shaped metal thin-wall sealing ring

Country Status (1)

Country Link
CN (1) CN112283349A (en)

Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863938A (en) * 1971-09-27 1975-02-04 Corrugated Packing Sheet Metal Sealing means
WO1989012189A1 (en) * 1988-06-01 1989-12-14 Specialist Sealing Limited Improvements relating to metallic sealing rings and their manufacture
WO1992012365A1 (en) * 1990-12-31 1992-07-23 Specialist Sealing Limited Seal
GB9618054D0 (en) * 1996-08-29 1996-10-09 T & N Technology Ltd Sealing gasket
JPH10339371A (en) * 1997-06-06 1998-12-22 Nichias Corp Hollow metal o-ring with ring, and manufacture thereof
JPH11182682A (en) * 1997-12-19 1999-07-06 Nippon Reinz Co Ltd Stacked metal gasket
JP2002005290A (en) * 2000-06-21 2002-01-09 Eagle Engineering Aerospace Co Ltd Gasket
CN1580433A (en) * 2003-08-07 2005-02-16 农用化学公开股份有限公司 Sealing device for sealing joints, and hollow-profile strip therefor
CN1683766A (en) * 2004-04-14 2005-10-19 通用电气公司 Flexible seal assembly between gas turbine components and methods of installation
US6968615B1 (en) * 2000-10-24 2005-11-29 The Advanced Products Company High temperature metallic seal
CN101459247A (en) * 2007-12-13 2009-06-17 法国原子能委员会 Superplastic sealing system, preferentially for electrochemical cell system
CN101504077A (en) * 2008-02-04 2009-08-12 普拉德研究及开发股份有限公司 Method for forming metal-metal seal downhole
CN101684735A (en) * 2008-09-22 2010-03-31 通用电气公司 Gas turbine seal
CN102097703A (en) * 2009-12-09 2011-06-15 苏州华旃航天电器有限公司 Self-sealing sealed connector
CN102537350A (en) * 2012-02-14 2012-07-04 中国航空动力机械研究所 Sealing ring and aircraft engine with same
CN203500475U (en) * 2013-08-30 2014-03-26 日本皮拉工业株式会社 Round ring spacer
CN204239750U (en) * 2014-11-05 2015-04-01 苏州宝骅机械技术有限公司 A kind of high compression height resilience black box
US20150292623A1 (en) * 2012-10-31 2015-10-15 Snecma Low-cost high-performance annular metallic seal for high pressures and large diameters
CN105157975A (en) * 2015-09-11 2015-12-16 南昌航空大学 Method for controlling and measuring sealing ring axial compression displacement deflection
JP5911163B1 (en) * 2015-05-10 2016-04-27 有限会社 東進車輌工業 Metal gasket for exhaust pipe
CN107035429A (en) * 2015-09-28 2017-08-11 通用电气公司 Senior fixing seal concept for the axial holding of ceramic substrate composite shield
CN208381303U (en) * 2018-06-14 2019-01-15 安徽共青机电装备制造有限公司 A kind of SW with outside ring
CN209043001U (en) * 2018-09-18 2019-06-28 苏州民生电热工程有限公司 A kind of carburizer Muffle cylinder expansion joint
CN110879139A (en) * 2019-11-18 2020-03-13 南昌航空大学 Sealing ring test device with deformation error compensation

Patent Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863938A (en) * 1971-09-27 1975-02-04 Corrugated Packing Sheet Metal Sealing means
WO1989012189A1 (en) * 1988-06-01 1989-12-14 Specialist Sealing Limited Improvements relating to metallic sealing rings and their manufacture
WO1992012365A1 (en) * 1990-12-31 1992-07-23 Specialist Sealing Limited Seal
GB9618054D0 (en) * 1996-08-29 1996-10-09 T & N Technology Ltd Sealing gasket
JPH10339371A (en) * 1997-06-06 1998-12-22 Nichias Corp Hollow metal o-ring with ring, and manufacture thereof
JPH11182682A (en) * 1997-12-19 1999-07-06 Nippon Reinz Co Ltd Stacked metal gasket
JP2002005290A (en) * 2000-06-21 2002-01-09 Eagle Engineering Aerospace Co Ltd Gasket
US6968615B1 (en) * 2000-10-24 2005-11-29 The Advanced Products Company High temperature metallic seal
CN1580433A (en) * 2003-08-07 2005-02-16 农用化学公开股份有限公司 Sealing device for sealing joints, and hollow-profile strip therefor
CN1683766A (en) * 2004-04-14 2005-10-19 通用电气公司 Flexible seal assembly between gas turbine components and methods of installation
CN101459247A (en) * 2007-12-13 2009-06-17 法国原子能委员会 Superplastic sealing system, preferentially for electrochemical cell system
CN101504077A (en) * 2008-02-04 2009-08-12 普拉德研究及开发股份有限公司 Method for forming metal-metal seal downhole
CN101684735A (en) * 2008-09-22 2010-03-31 通用电气公司 Gas turbine seal
CN102097703A (en) * 2009-12-09 2011-06-15 苏州华旃航天电器有限公司 Self-sealing sealed connector
CN102537350A (en) * 2012-02-14 2012-07-04 中国航空动力机械研究所 Sealing ring and aircraft engine with same
US20150292623A1 (en) * 2012-10-31 2015-10-15 Snecma Low-cost high-performance annular metallic seal for high pressures and large diameters
CN203500475U (en) * 2013-08-30 2014-03-26 日本皮拉工业株式会社 Round ring spacer
CN204239750U (en) * 2014-11-05 2015-04-01 苏州宝骅机械技术有限公司 A kind of high compression height resilience black box
JP5911163B1 (en) * 2015-05-10 2016-04-27 有限会社 東進車輌工業 Metal gasket for exhaust pipe
CN105157975A (en) * 2015-09-11 2015-12-16 南昌航空大学 Method for controlling and measuring sealing ring axial compression displacement deflection
CN107035429A (en) * 2015-09-28 2017-08-11 通用电气公司 Senior fixing seal concept for the axial holding of ceramic substrate composite shield
CN208381303U (en) * 2018-06-14 2019-01-15 安徽共青机电装备制造有限公司 A kind of SW with outside ring
CN209043001U (en) * 2018-09-18 2019-06-28 苏州民生电热工程有限公司 A kind of carburizer Muffle cylinder expansion joint
CN110879139A (en) * 2019-11-18 2020-03-13 南昌航空大学 Sealing ring test device with deformation error compensation

Similar Documents

Publication Publication Date Title
CN102537576A (en) High-temperature and high-pressure sleeve type compensator
CN112283349A (en) Bidirectional W-shaped metal thin-wall sealing ring
CN111140557A (en) S-shaped bellows type energy accumulator with novel structure
CN201723713U (en) Sealing device for hydraulic cylinder
CN213776352U (en) Bidirectional multi-W-shaped metal thin-wall sealing ring
CN113483098A (en) Ring groove high-pressure self-sealing mechanism and liquid flow detection device for injector plate
CN104358874B (en) A kind of high compression resilience seal assembly high
CN213452254U (en) Bidirectional C-shaped metal sealing ring
CN103063177A (en) Sensitive element with high precision resistant to high temperature and high pressure
CN215807083U (en) Split type expansion joint
CN215294019U (en) Novel flange plate sealing connection device
CN114087420B (en) Sealing structure of valve rod and valve
CN115653535A (en) Airtight packing element of high temperature high pressure packer
CN203384529U (en) Sealing gasket for exhaust system of supercharged engine
CN209781209U (en) Scroll compressor having a plurality of scroll members
CN201875131U (en) Self-tightening metal gasket
CN202469014U (en) Ultrahigh pressure difference tight cutoff adjustment valve
CN215293789U (en) Electromagnetic valve with wider temperature application range
CN207437779U (en) A kind of folder fabric seal ring assembly
CN214621648U (en) Outer open W type metal ring experiment platform that obturages
CN212297577U (en) Sealing ring structure for motor stator connecting unit
CN209083501U (en) A kind of positive displacement new type compressor
CN216618533U (en) Packing assembly of oil-free compressor
CN217842630U (en) Novel axial compressor gas seal device
CN207740461U (en) High-pressure resistant oil seal

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20210129

WD01 Invention patent application deemed withdrawn after publication