CN103682187B - A kind of sealing ring - Google Patents

A kind of sealing ring Download PDF

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Publication number
CN103682187B
CN103682187B CN201310705306.2A CN201310705306A CN103682187B CN 103682187 B CN103682187 B CN 103682187B CN 201310705306 A CN201310705306 A CN 201310705306A CN 103682187 B CN103682187 B CN 103682187B
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CN
China
Prior art keywords
sealing ring
seal
seal hatch
sealing surface
leak source
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CN201310705306.2A
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Chinese (zh)
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CN103682187A (en
Inventor
杨辉
汪保国
李雪梅
张海峰
邢新峰
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Shanghai Advanced Research Institute of CAS
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Shanghai Advanced Research Institute of CAS
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Publication of CN103682187A publication Critical patent/CN103682187A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/02Details
    • H01M8/0271Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0276Sealing means characterised by their form
    • H01M8/0278O-rings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Gasket Seals (AREA)

Abstract

The present invention provides a kind of sealing ring, the sealing ring combined including multi-sealed cabin structure and high compression rate structure, it is respectively provided with multi-sealed cabin on the two sides up and down of described sealing ring, the cross section of described sealing ring adapts to the geometry deformation of high compression rate, when many leak sources occurs in sealing surface, sealing ring of the present invention still has good seal performance.

Description

A kind of sealing ring
Technical field
The present invention relates to fluid seals technology field, especially for the sealing ring of flow battery.
Background technology
Sealing the most important for flow battery, being the primary condition ensureing flow battery system safe operation, if being System occurs that the phenomenon of leakage or sealingly secure coefficient are low, then can directly affect the service efficiency of system, and it is unnecessary in turn result in Economic loss.The sealing ring of conventional art design, is desirable that leak source can not occur in its sealing surface, as it is shown in figure 1, when sealing surface 1 Leak source 3 occurs, or when leak source 4 occurs in sealing surface 5, sealing ring 2 just cannot seal.But in actual production process, sealing surface The liquid flow frame of some leak sources, particularly flow battery often occurs, because what liquid flow frame was all made with engineering plastics, due to Sheet plastic is meeting nature warpage under the effect of internal stress, and the surface of its sheet plastic can become uneven, at sheet plastic During Surface Machining seal groove, often there is deep mixed situation in the degree of depth of its seal groove, the deepest at seal groove Place often forms leak source one by one.Sheet plastic can produce some pits in forming process for various reasons, if this A little pits occur in and are the formation of leak source on sealing surface.We carrying, store, process sheet plastic during, its plastics are thin The surface of plate is easy to be scratched, damage, and these scars are likely to the leak source becoming on sealing surface.Cause sealing surface table in a word Face occurs that the factor of leak source is a lot, and this can allow people hard to guard against.If very important person is for eliminating these leak sources, not only takes a lot of work, take material, expense Time, and its reliability sealed is the highest.Therefore, the sealing ring of traditional design cannot meet flow battery to seal can Requirement by property.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of sealing ring, is used for solving now Have the shortcoming and defect that sealing ring is brought, it is provided that a kind of can the sealing ring of anti-seal leak source.
For achieving the above object and other relevant purposes, the present invention adopts the following technical scheme that, a kind of sealing ring, described close Some seal hatch structures it are provided with in seal.
Preferably, described seal hatch structure accommodates sealing ring in 20~40% deformation in the case of compression ratio.
Preferably, described seal hatch structure is double-layer seal cabin structure.
Preferably, alternately it is made up of H-shaped panel structure and rectangle wall construction between described double-layer seal cabin structure.
Preferably, the cross section of described each seal hatch structure be circle, runway circle, square, rectangle, triangle, Polygon
One in shape and sector.
Preferably, described every layer of seal hatch structure is double cabin.
Preferably, described double cabin is symmetrical arranged or is crisscross arranged.
The present invention can the sealing ring of anti-seal leak source, it arranges upper and lower two-layer, and upper strata and lower floor all arrange shape, number Amount, the seal hatch that size is the most equal, the geometry of the cross section of sealing ring is made up of H type and rectangle wallboard, its sealing surface It is close-shaped by several geometrical edges, and requires that seal hatch can accommodate the geometry deformation of high compression rate, by the present invention, when When there are many leak sources on sealing surface, sealing ring still has good seal performance.
Accompanying drawing explanation
Fig. 1 is shown as tradition rubber seal structural representation.
Fig. 2 a-2c is shown as ring structure schematic diagram of the present invention.
Fig. 3 is shown as the design sketch of the present invention anti-degree of depth leak source.
Fig. 4 is shown as unlimited shallow leak source schematic diagram.
Fig. 5 is shown as the present invention installation diagram at leakage detection apparatus.
Fig. 6 is shown as leakage detection apparatus sealing surface and is carved with the intention limiting deep leak source.
Fig. 7 is shown as leakage detection apparatus sealing surface and is carved with unlimited shallow leak source schematic diagram.
Fig. 8 is shown as liquid flow frame sealing ring scheme of installation.
It is circular sealing surface structure schematic diagram that Fig. 9 a-9c is shown as cabin cross section.
Figure 10 a-10c is shown as the sealing surface structure schematic diagram that cabin cross section is track type.
It is square sealing surface structure schematic diagram that Figure 11 a-11c is shown as cabin cross section.
Figure 12 a-12c is shown as the sealing surface structure schematic diagram that cabin cross section is rectangle.
Figure 13 a-13c is shown as the sealing surface structure schematic diagram that cabin cross section is triangle.
It is cellular sealing surface structure schematic diagram that Figure 14 a-14b is shown as cabin cross section.
Element numbers explanation
Upper sealing surface 1 sealing ring cross section 2
Upper sealing surface leak source 3 lower sealing surface leak source 4
Lower sealing surface 5 H-shaped load wallboard 6
Lower floor's seal hatch 7 outer load wallboard 8
Load wallboard 10 in interlayer 9
Upper sealing surface 11 upper strata seal hatch 12
Rectangle load wallboard 13 lower sealing surface 14,15
Sealing surface 17 on sealing ring cross section 16
Deep leak source 18 leakage detection apparatus bolt hole 19
The shallow leak source of sealing surface 20 21 of the shallow leak source of unlimited amount
Leakage detection apparatus air inlet 22 sealing ring 23
Deep leak source 26 sealing ring impression 27
Simulate unlimited shallow leak source 33 liquid flow frame sealing ring 35
Sprue sealing ring 36 liquid flow frame 37
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art can be by this specification Disclosed content understands other advantages and effect of the present invention easily.The present invention can also be by the most different concrete realities The mode of executing is carried out or applies, the every details in this specification can also based on different viewpoints and application, without departing from Various modification or change is carried out under the spirit of the present invention.
Refer to shown in accompanying drawing.It should be noted that the diagram provided in the present embodiment illustrates this most in a schematic way The basic conception of invention, the most graphic in package count time only display with relevant assembly in the present invention rather than is implemented according to reality Mesh, shape and size are drawn, and during its actual enforcement, the kenel of each assembly, quantity and ratio can be a kind of random change, and its Assembly layout kenel is likely to increasingly complex.
A kind of sealing ring, is provided with some seal hatch structures in described sealing ring.Described seal hatch structure accommodates sealing Enclose in 20~40% deformation in the case of compression ratio.Preferably, described seal hatch structure is double-layer seal cabin structure.Institute State and be alternately made up of H-shaped panel structure and rectangle wall construction between double-layer seal cabin structure.Preferably, described each sealed compartment The cross section of cell structure is the one in circle, runway circle, square, rectangle, triangle, polygon and sector.Described every layer Seal hatch structure is double cabin.Described double cabin is symmetrical arranged or is crisscross arranged.Described every layer of seal hatch structure is Hollow out arrangement cabin.Preferably, described hollow out arrangement cabin is regular hexagon hollow out or equilateral triangle hollow out.
Ring structure schematic diagram as shown in Fig. 2 a to Fig. 2 c, in the present embodiment, described sealing ring external diameter 42mm, internal diameter 34mm, sealing ring cross-sectional width 4mm, highly 3mm, seal line body of wall and compartment thickness 1mm, wherein interlayer 9 is as upper sealing The elastic force of face 11 and lower sealing surface 14 strengthens district, and upper strata all arranges shape, size, seal hatch that quantity is the most equal with lower floor, It includes upper strata seal hatch 12 and lower floor's seal hatch 7.The interior space of seal hatch requires sufficiently large, it is possible to accommodates and seals Enclosing in 20~40% encapsulant deformation in the case of compression ratio, the geometry of the cross section of sealing ring is by H type wallboard 6 He Rectangle partition plate 13 forms.The most described seal hatch is by H type wallboard 6, rectangle partition plate 13, outer load wallboard 8 and interior load wall Plate 10 is constituted.Described upper sealing surface 11 and lower sealing surface 14 are that the geometric figure closed by some is arranged in a combination.
Fig. 5 is shown as the installation diagram using the present invention at leakage detection apparatus, for the test of anti-seal deep leak source of sealing ring. Sealing ring 23 is arranged between sealing surface, is provided with air inlet 22 in the middle of this leakage detection apparatus.The leak detection equipped with sealing ring shown in Fig. 5 Device, wherein has the sealing surface of seal groove, bolt fastening hole 19, sealing ring 23, air inlet 22 of hunting leak, sealing ring external diameter 42mm, internal diameter 34mm, sealing ring cross section: width 4mm, highly 3mm, seal groove external diameter 42mm, internal diameter 34mm, sealing ring is horizontal Cross section: width 4mm, highly 2.1mm, sealing ring sets the degree of depth of seal groove by 30% compression ratio.It is illustrated in figure 6 leak detection dress Put sealing surface and be carved with the schematic diagram limiting deep leak source.Deep leak source 26 is all demonstrated inside and outside sealing ring impression 27., this device is artificially to exist Arranging many deep leak source leakage detection apparatus on sealing surface, wherein preset deep leak source 26, deep leak source width 2mm, the deep leak source degree of depth is 0.5mm, sealing ring Indentation position 27, the sealing surface of deep leak source is set.The water that described leakage detection apparatus is immersed in transparent water tank In hunt leak, measuring air pressure is 0.2MPa, spills still without being found to have bubble after standing 3 days.Leakage detection apparatus is close as shown in Figure 7 Front cover is carved with unlimited shallow leak source schematic diagram, for the test of anti-seal shallow leak source of sealing ring.This device is artificially on sealing surface Arranging all a plurality of simulations unlimited shallow leak source test device, the wherein unlimited shallow leak source 27 of predetermined analog, the shallow leak source degree of depth is 0.3mm. Leakage detection apparatus after installation is immersed in transparent water tank and hunts leak, and measuring air pressure is 0.2MPa, and after standing 3 days, leakage detection apparatus does not has Discovery bubble spills.
Liquid flow frame sealing ring scheme of installation as shown in Figure 8.For 10 kilowatts of all-vanadium flow battery liquid flow frame leakage tests. Wherein liquid flow frame sealing ring 35, sprue sealing ring 365, liquid flow frame 37, leak detection air pressure is 0.2MPa, after standing 3 days still without It is found to have bubble to spill.
Seal hatch front plan view shape as shown in Fig. 9 a to 9c is circular sealing surface structure schematic diagram, wherein, and figure 9a is shown as two rows that every layer of seal hatch is symmetrical and arranges.It is that two rows staggered are arranged that Fig. 9 b is shown as every layer of seal hatch. It is single setting that Fig. 9 c is shown as every layer of seal hatch.
The sealing surface structure schematic diagram that seal hatch front plan view shape is track type as shown in Figure 10 a to 10c, its In, it is that two rows staggered are arranged that Figure 10 a is shown as every layer of seal hatch.It is symmetrical two that Figure 10 b is shown as every layer of seal hatch Row is arranged.It is single setting that Figure 10 c is shown as every layer of seal hatch.
Seal hatch front plan view shape as shown in Figure 11 a to 11c is foursquare sealing surface structure schematic diagram, its In, it is that two rows staggered are arranged that Figure 11 a is shown as every layer of seal hatch.It is symmetrical two that Figure 11 b is shown as every layer of seal hatch Row is arranged.It is single setting that Figure 11 c is shown as every layer of seal hatch.
Seal hatch front elevation as shown in Figure 12 a to 12c be figure be rectangular sealing surface structure schematic diagram, its In, it is that two rows staggered are arranged that Figure 12 a is shown as every layer of seal hatch.It is symmetrical two that Figure 12 b is shown as every layer of seal hatch Row is arranged.It is single setting that Figure 12 c is shown as every layer of seal hatch.
Seal hatch front elevation as shown in Figure 13 a to 13c be figure be the sealing surface structure schematic diagram of triangle, its In, Figure 13 a is shown as two rows' settings that every layer of seal hatch is equilateral triangle combination positively and invertedly.Figure 13 b is shown as middle part For square, the cabin structure that the triangle (drift angle vertical angles) that both sides are symmetrical is arranged.Figure 13 c is shown as monolayer sealed compartment Room, this monolayer seal hatch is that two rows of equilateral triangle combination positively and invertedly are arranged.
Seal hatch front plan view shape as shown in Figure 14 a to 14b is cellular sealing surface structure schematic diagram, its In, it is the cellular setting that two rows are the same that Figure 14 a is shown as every layer of seal hatch.Figure 14 b is shown as single cellular setting Cabin structure.
Seal hatch major function of the present invention is the sealing problem solving to occur the deep leak source of limited quantity on sealing surface, as Shown in Fig. 3, this is the analysis chart of anti-seal deep leak source of sealing ring, and wherein black region 18 represents deep leak source, when sealing surface goes out The all deep leak source situation now occurred in figure, above-mentioned situation can be effectively sealed by sealing ring of the present invention.Continuing with ginseng Read the design sketch of the anti-degree of depth leak source shown in accompanying drawing 3.In the present embodiment, upper layer sealing surface 17 and lower layer sealing surface 15 with seal Deep leak source 18 is had between circle.In sealing ring longitudinal section 16 from this sectional view it can be seen that the seal hatch of levels yes Deep leak source isolation.
The present invention can realize high compression rate, it is possible to solves occur that the sealing of an infinite number of shallow leak source is asked on sealing surface Topic, as shown in Figure 4, when sealing surface occur differing in size, different an unbounded quantity of shallow leak source, wherein leak-checking apparatus bolt hole 19, leak-checking apparatus sealing surface 20, the shallow leak source of unlimited amount 21, the nil case occurred in figure occurs in sealing surface, the present invention seals Above-mentioned situation can be effectively sealed by circle.
In sum, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The principle of above-described embodiment only illustrative present invention and effect thereof, not for limiting the present invention.Any ripe Above-described embodiment all can be modified under the spirit and the scope of the present invention or change by the personage knowing this technology.Cause This, have usually intellectual such as complete with institute under technological thought without departing from disclosed spirit in art All equivalences become are modified or change, and must be contained by the claim of the present invention.

Claims (5)

1. a sealing ring, it is characterised in that be provided with some seal hatch structures in described sealing ring;Described seal hatch structure Including upper strata seal hatch (12) and the lower floor seal hatch (7) corresponding with described upper strata seal hatch;The cross section of sealing ring Alternately it is made up of H type wallboard (6) and rectangle partition plate (13), and width is equal;The most described seal hatch is by H type wallboard (6), square Shape partition plate (13), outer load wallboard (8) and interior load wallboard (10) are constituted.
Sealing ring the most according to claim 1, it is characterised in that described seal hatch structure accommodate sealing ring 20~ Deformation in the case of 40% compression ratio.
Sealing ring the most according to claim 1, it is characterised in that the front plan view shape of described seal hatch structure is circle One in shape, polygon and sector.
Sealing ring the most according to claim 1, it is characterised in that every layer of seal hatch structure is double cabin.
Sealing ring the most according to claim 4, it is characterised in that described double cabin is symmetrical arranged or is crisscross arranged.
CN201310705306.2A 2013-12-19 2013-12-19 A kind of sealing ring Active CN103682187B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310705306.2A CN103682187B (en) 2013-12-19 2013-12-19 A kind of sealing ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310705306.2A CN103682187B (en) 2013-12-19 2013-12-19 A kind of sealing ring

Publications (2)

Publication Number Publication Date
CN103682187A CN103682187A (en) 2014-03-26
CN103682187B true CN103682187B (en) 2016-09-21

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202817105U (en) * 2012-09-26 2013-03-20 贵州省岑巩县银峰矿业有限公司长沙分公司 Seal structure of flow battery and electric pile thereof
CN203098853U (en) * 2013-01-04 2013-07-31 上海绩优机电设备有限公司 Pump cavity body sealing ring

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2434845B (en) * 2006-02-01 2010-10-13 Intelligent Energy Ltd Variable compressibility gaskets

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202817105U (en) * 2012-09-26 2013-03-20 贵州省岑巩县银峰矿业有限公司长沙分公司 Seal structure of flow battery and electric pile thereof
CN203098853U (en) * 2013-01-04 2013-07-31 上海绩优机电设备有限公司 Pump cavity body sealing ring

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