CN205534206U - High radial seal assembly that kick -backs of high compensation - Google Patents
High radial seal assembly that kick -backs of high compensation Download PDFInfo
- Publication number
- CN205534206U CN205534206U CN201620394294.5U CN201620394294U CN205534206U CN 205534206 U CN205534206 U CN 205534206U CN 201620394294 U CN201620394294 U CN 201620394294U CN 205534206 U CN205534206 U CN 205534206U
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- CN
- China
- Prior art keywords
- becket
- ring
- cannelure
- circumference
- seal assembly
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a high radial seal assembly that kick -backs of high compensation, including the becket, it is used for upwards sealing connection's seal structure of footpath all to be equipped with on inboard global and the outside of becket are global, U type open -ended ring channel has been seted up to an axle head of becket, the ring channel has near U type open -ended open end and is close to the blind end of ring channel tank bottom, open end department is equipped with regularly and follows the radial direction elastic expansion's of becket elastic support elements, seal structure is in lie in on the becket the radial both sides of open end. This seal assembly is at the in -process of work because the self -tightening power that the elasticity of becket self, pressure medium difference band are come, elastic support elements's factors such as elastic support effect, the seal structure of both sides can distinguish closely conflict the outside of inner tube global with outer tube inboard global on, seal structure department is all the time at effectual encapsulated situation, this has guaranteed the reliability of sealing up.
Description
Technical field
This utility model relates to a kind of high compression height resilience radial seal assembly.
Background technology
In sealing system in the industrial departments such as nuclear power, thermoelectricity, chemical industry, the energy, often there is the harsh working conditions such as high temperature, high pressure and the alternate load that formed with thermal shock (thermal cycle), pressure medium fluctuation etc., in heat exchanger, heat exchanger, reaction vessel, seal for pipe joints, the especially radial seal between seal for pipe joints middle sleeve.Under the working condition of this type high temp, high pressure and chemical reaction, owing to each element of equipment exists thermal expansion difference, cause each deformed element inconsistent.In this case very big on the impact sealed, when high temperature, sealing member is made seal failure because element expands by overvoltage conquassation, and when dropping at temperature, because of component shrinkage and sealing member decompression can be made, so that seal pressure disappearance, causes sealing leak.Only when sealing member, there is big decrement, big springback capacity, sealing member can be made to bear the significantly change of decrement under above-mentioned work condition environment, thus ensureing the reliable of sealing, the purpose of the application then aims to provide the black box for radial seal with above-mentioned performance.
Summary of the invention
The purpose of this utility model is to provide a kind of high compression height resilience radial seal assembly, to meet the radial seal requirement under the harsh operating mode such as high temperature, high pressure.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of high compression height resilience radial seal assembly, including becket, it is equipped with the sealing structure for being radially tightly connected in the inside circumference of described becket and outside circumference, one axle head of described becket offers the cannelure of U-shaped opening, described cannelure has the opening near U-shaped opening and the blind end near described cannelure bottom land, described open end is fixedly provided with can be along the elastic supporting member for supporting optical member of the radial direction elastic telescopic of described becket, described opening is arranged through described elastic supporting member for supporting optical member phase liquid flowing connection with described blind end, described sealing structure is positioned at the radially opposite sides of described opening on described becket.
Preferably, in the inside circumference/outside circumference of described becket, described sealing structure includes the O-ring seal being located on described becket, described O-ring seal by the annular boss on described becket and the ring shaped stopper that is fixed on described becket axle head realize on axially spacing.
Preferably, in the inside circumference/outside circumference of described becket, described sealing structure is profile of tooth sealing surface or the metallic sealing section in evagination arc shape of indentation；Or described sealing structure is that profile of tooth covers flexible material sealing surface.
Preferably, in two described sealing structures on the inside circumference of described becket and outside circumference, one of them described sealing structure includes the O-ring seal on described becket, described O-ring seal by the annular boss on described becket and the ring shaped stopper that is fixed on described becket axle head realize on axially spacing；Another described sealing structure is the profile of tooth sealing surface of indentation or metallic sealing section or the profile of tooth in evagination arc shape covers flexible material sealing surface.
Preferably, described elastic supporting member for supporting optical member is elastic ring, described becket is positioned at described opening and is also fixedly provided with the baffle ring for being limited in described cannelure by described elastic ring.
Further, the inside circumference/outside circumference of described baffle ring is fixing with the side circumference cell wall of described cannelure to be connected, and has gap between outside circumference/inside circumference and the opposite side circumference cell wall of described cannelure of described baffle ring.
Further, described elastic ring is o-ring, C-shaped ring or helical spring；When described elastic ring is o-ring or C-shaped ring, described elastic ring offers and makes described opening and described blind end phase liquid flowing connection along the liquid flow hole self extended radially through.
Further, in described cannelure, the radial slot of described opening is wider than the radial direction groove width of described blind end, has for stopping the stop part that described elastic ring is axially moveable between described opening and described blind end.
Preferably, described black box is for the radial seal between inner tube and outer tube, described metal ring is located in said inner tube, described sealing structure on described becket inside circumference seals mutually with the outside circumference of said inner tube, the described sealing structure of described becket outside circumference seals mutually with the inside circumference of described outer tube, and described becket is located on parts in said inner tube and outer tube regularly or said inner tube is provided with the defining flange for described becket carries out axial limiting with parts in outer tube both parts.
Further, tube chamber between said inner tube and outer tube is divided into the first chamber and the second chamber being isolated by described black box, the described opening of described cannelure is positioned at the chamber that described first chamber is bigger with described second chamber the two chamber medium pressure, to be formed from clamp force at described sealing structure.
Utilization due to technique scheme, this utility model compared with prior art has the advantage that high compression height resilience radial seal assembly of the present utility model, radial seal between two parts, it is by offering the cannelure with U-shaped opening on becket, and arrange in the open end of this cannelure the elastic supporting member for supporting optical member of its radially elastic telescopic can be provided, the position being simultaneously positioned at opening radially opposite sides on becket is respectively provided with sealing structure.This black box is during work, due to the elasticity of becket self, pressure medium difference band come from clamp force, the factor such as resilient support effect of elastic supporting member for supporting optical member, the sealing structure of both sides can the most closely be conflicted in the outside circumference of inner tube with the inside circumference of outer tube, seal and be in effective sealing state all the time at structure, which ensure that the reliability of sealing.
Accompanying drawing explanation
Accompanying drawing 1 is the sectional structure schematic diagram of the black box of embodiment 1；
Accompanying drawing 2 is the mounting structure cross-sectional schematic of the black box of embodiment 1；
Accompanying drawing 3 is the sectional structure schematic diagram of the black box of embodiment 2；
Accompanying drawing 4 is the mounting structure cross-sectional schematic of the black box of embodiment 2；
Accompanying drawing 5 is the sectional structure schematic diagram of the black box of embodiment 3；
Accompanying drawing 6 is the sectional structure schematic diagram of the black box of embodiment 4；
Accompanying drawing 7 is the schematic diagram of profile of tooth sealing surface；
Accompanying drawing 8 is the schematic diagram of the metallic sealing section of evagination arc shape；
Accompanying drawing 9 covers the schematic diagram of flexible material sealing surface for profile of tooth；
Wherein: 1, becket；1a, 1b, annular boss；11,12,13,14,15,16, structure is sealed；13a, profile of tooth sealing surface；13b, metallic sealing section；13c, profile of tooth metal covering；13d, flexible material sealing surface；2, cannelure；3,5, O-ring seal；4,6, ring shaped stopper；7, elastic supporting member for supporting optical member；8, baffle ring；10, inner tube；20, outer tube；30, the first chamber；40, the second chamber.
Detailed description of the invention
With specific embodiment, the technical solution of the utility model is further elaborated below in conjunction with the accompanying drawings.
Embodiment 1
See the high compression height resilience radial seal assembly shown in Fig. 1, Fig. 2, the radial seal between inner tube 10 and outer tube 20.This black box include becket 1, the inside circumference of becket 1 be provided with sealing structure 11 for sealing mutually with the outside circumference of inner tube 10, the outside circumference of becket 1 be provided with sealing structure 12 for sealing mutually with the inside circumference of outer tube 20.
Shown in Figure 1, one axle head of becket 1 offers the cannelure 2 with U-shaped opening, this cannelure 2 has the opening near U-shaped opening and the blind end near cannelure 2 bottom land, this open end is fixedly provided with can be along the elastic supporting member for supporting optical member 7 of the radial direction elastic telescopic of becket 1, and the opening of cannelure 2 is arranged by elastic supporting member for supporting optical member 7 phase liquid flowing connection with blind end.Sealing structure 11 lays respectively at the radially opposite sides of opening on sealing ring 2 with sealing structure 12.
Shown in Figure 1, in the outside circumference of becket 1, seal the O-ring seal 3 that structure 12 includes being set on becket 1, there is in the outside circumference of becket 1 the annular boss 1a radially protruded, ring shaped stopper 4 it is arranged with the most regularly on the axle head of becket 1, just defining the endless groove for installing O-ring seal 3 between ring shaped stopper 4 and annular boss 1a, O-ring seal 3 is limited in vertically to be avoided dropping between annular boss 1a and ring shaped stopper 4.During installation, first O-ring seal 3 can be sheathed with on becket 1 and be fixedly mount on the axle head of becket 1 by ring shaped stopper 4, this ring shaped stopper 4 can use bolt removably to install.O-ring seal 3 is arranged on becket 1, and outside it, the sealing surface of perimembranous is radially positioned at the outside of annular boss 1a and ring shaped stopper 4, so that the inside circumference with outer tube 20 is tightly connected when sealing.
Similarly, shown in Figure 1, on the inside circumference of becket 1, seal the O-ring seal 5 that structure 11 includes being located on becket 1, there is on the inside circumference of becket 1 the annular boss 1b projected radially inwards, also being fixedly provided with ring shaped stopper 6 on the axle head of becket 1, it is spacing that O-ring seal 5 is carried out on axially by ring shaped stopper 6 and annular boss 1b.O-ring seal 5 is on becket 1, and inside it, the sealing surface of perimembranous is radially positioned at the inner side of annular boss 1b and ring shaped stopper 6, so that the outside circumference with inner tube 10 is tightly connected when sealing.
Shown in Figure 1, toroidal support 7 use for elastic ring, this elastic ring 7 can be o-ring, C-shaped ring or helical spring, if the o-ring that elastic ring 7 uses or C-shaped ring, the blind end then needing to offer the liquid flow hole radially run through on elastic ring 7 and make cannelure 2 and opening phase liquid flowing connection, the liquid medium in cavity volume is made to enter in cannelure 2, to form self-tightening effect.If elastic ring 7 use for helical spring, then the structure of helical spring self just can realize the liquid flowing connection of blind end and opening on cannelure 2.
The opening being positioned at cannelure 2 on becket 1 is also fixedly provided with the baffle ring 8 for being limited in cannelure 2 by elastic ring 7.This baffle ring 8 one aspect is for axial spacing, to prevent elastic ring 7 from coming off from cannelure 2 of elastic ring 7；On the other hand this baffle ring 7 is also spacing to during becket 1 radial compression, prevents becket 1 from overvoltage radially occurring and conquassation.
Herein, baffle ring 8 is weldingly fixed on the side circumference cell wall of cannelure 2, specifically can be such as the mode of Fig. 1, the inside circumference of baffle ring 8 is fixing with the side circumference cell wall of cannelure 2 to be connected, having gap between outside circumference and the opposite side circumference cell wall of cannelure 2 of baffle ring 8, this gap width is becket 1 maximum compressibility diametrically.Certainly, it is possible to such as the mode of Fig. 2, the outside circumference of baffle ring 8 is fixing with the side circumference cell wall of cannelure 2 to be connected, and has gap between inside circumference and the opposite side circumference cell wall of cannelure 2 of baffle ring 8.
In cannelure 2, the radial slot of its opening is wider than the radial direction groove width of its blind end, making to be formed between opening and blind end for stopping the step-like stop part that elastic ring 7 is axially moveable, elastic ring 7 is limited between baffle ring 8 and above-mentioned stop part vertically without coming off.
Shown in Figure 2, when this black box is used for the radial seal between inner tube 10 and outer tube 20, inner tube 10 is provided with outwardly ring-type defining flange 10a, black box is set in inner tube 10, defining flange 10a formed to its axially on spacing, on becket 1, sealing structure 11 seals mutually with the outside circumference of inner tube 10, on becket 1, sealing structure 12 seals mutually with the inside circumference of outer tube 20, and the cavity between inner tube 10 and outer tube 20 is divided into the first chamber 30 and the second chamber 40 by this black box.
During installation, if pressure medium is same or like in the first chamber 30 and the second chamber 40, the opening of cannelure 2 can be located in the arbitrary chamber in the first chamber 30 and the second chamber 40；When the pressure medium in the first chamber 30 is less than the pressure medium in the second chamber 40, the opening of cannelure 2 can be located in the second chamber 40 according to the mode of Fig. 2；When the pressure medium in the first chamber 30 is more than the pressure medium in the second chamber 40, the black box in Fig. 2 should be turned around, i.e. make the opening of cannelure 2 be located in the first chamber 30.
In the present embodiment, the pressure medium in the first chamber 30 is less than the pressure medium in the second chamber 40, therefore the opening of cannelure 2 is positioned at the second chamber 40, as shown in Figure 2.Black box between inner tube 10 and outer tube 20 by the first chamber 30 and bi-directional medium effect in the second chamber 40.When the working media in the first chamber 30 and the second chamber 40 is in normal temperature and pressure state, under the effect of becket 1 and elastic ring 7, the pressure medium difference in the first chamber 30 and the second chamber 40 acts on the cell wall of cannelure 2, elastic ring 7 is conflicted in the radial sidewalls of the opening of cannelure 2 simultaneously, sealing structure 11,12 on this inside circumference making becket 1 and outside circumference respectively and has enough Sealing Stress between inner tube 10, outer tube 20, so can be effectively improved the sealing effectiveness sealed at structure 11,12.When in the first chamber 30 and the second chamber 40, working media is in high pressure or the condition of high temperature, becket 1 deforms because of flatulence of heat type effect and is extruded by inner tube 10 and the common of outer tube 20, under the effect of elastic ring 7, it is positioned at cannelure 2 opening both sides on becket 1 can diametrically opposite shrink, its radially contracted maximum is the gap width preset between baffle ring 8 and cannelure 2 side cell wall, it is to avoid black box entirety was lost efficacy by conquassation.And seal structure 11,12 on becket 1 and remain respectively and inner tube 10, the sealing of outer tube 20, it is ensured that sealing the most effective.
And when working media returns back to normal temperature and pressure state, due to shrinkage effect, on becket 1, the opening of cannelure 2 has the diametrically opposite trend opened, now, elastic ring 7 radially elastic elongation and be radially supported in the radial sidewalls of cannelure 2 so that the seal pressure of the sealing structure 11,12 of becket 2 both sides returns back to suitable state.
This black box during work, seal that the Sealing Stress being subject at structure 11,12 is mainly derived from that the elasticity of becket 1 self, the resilient support of elastic ring 7, and working medium pressure difference band come from clamp force.By the active force in terms of above three, the sealing structure 11 of both sides, sealing structure 12 can the most closely be conflicted in the outside circumference of inner tube 10 with the inside circumference of outer tube 20, seal structure 11 and be in effective sealing state with sealing all the time at structure 12, it is ensured that the reliability of sealing.No matter how the first chamber 30 changes with pressure with working media temperature in the second chamber 40, all can realize stable effective sealing.
Embodiment 2
High compression height resilience radial seal assembly shown in Figure 3, it essentially consists in, with the difference of embodiment 1, the setting sealing structure on becket 1.
On this black box, the outside circumference of becket 1 seals structure 14 similar with the sealing structure 12 in embodiment 1, its use for O-ring seal 3, this O-ring seal 3 is limited between annular boss 1a and ring shaped stopper 4 vertically.Structure 13 is sealed on the inside circumference of becket 1, it can use jagged profile of tooth sealing surface 13a as shown in Figure 7, or the metallic sealing section 13b in evagination arc shape as shown in Figure 8, or use profile of tooth as shown in Figure 9 to cover flexible material sealing surface, wherein profile of tooth cover flexible material sealing surface by profile of tooth metal covering 13c cover flexible material sealing surface 13d form, it has good sealing effectiveness equally.
Shown in Figure 4, this black box is when radial seal between inner tube 10 and outer tube 20, and the inside circumference of becket 1 is weldingly fixed in the outside circumference of inner tube 10 to realize axial spacing of black box.Sealing structure 13 seals mutually with the outside circumference of inner tube 10, and sealing structure 14 seals mutually with the inside circumference of outer tube 20.
Embodiment 3
This embodiment essentially consists in the difference of embodiment 1, and becket 1 seals the setting of structure.
Shown in Figure 5, on this black box, the inside circumference of becket 1 seals structure 15 similar with the sealing structure 11 in embodiment 1, its use for O-ring seal 5, this O-ring seal 5 is limited between annular boss 1b and ring shaped stopper 6 vertically.Sealing structure 16, its profile of tooth sealing surface that can use indentation or metallic sealing section in evagination arc shape in the outside circumference of becket 1, or profile of tooth covers flexible material sealing surface, it has good sealing effectiveness equally.
Embodiment 4
This embodiment essentially consists in the difference of embodiment 1,2,3, and becket 1 seals the setting of structure.
Shown in Figure 6, on this black box, sealing structure 17 on the inside circumference of becket 1 all uses jagged profile of tooth sealing surface, or the metallic sealing section in evagination arc shape with the sealing structure 18 in outside circumference, or covers flexible material sealing surface for profile of tooth.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement according to this, can not limit protection domain of the present utility model with this.All equivalence changes made according to this utility model spirit or modification, all should contain within protection domain of the present utility model.
Claims (10)
1. a high compression height resilience radial seal assembly, including becket, it is characterized in that: in the inside circumference of described becket and outside circumference, be equipped with the sealing structure for being radially tightly connected, one axle head of described becket offers the cannelure of U-shaped opening, described cannelure has the opening near U-shaped opening and the blind end near described cannelure bottom land, described open end is fixedly provided with can be along the elastic supporting member for supporting optical member of the radial direction elastic telescopic of described becket, described opening is arranged through described elastic supporting member for supporting optical member phase liquid flowing connection with described blind end, described sealing structure is positioned at the radially opposite sides of described opening on described becket.
High compression height resilience radial seal assembly the most according to claim 1, it is characterized in that: in the inside circumference/outside circumference of described becket, described sealing structure includes the O-ring seal being located on described becket, described O-ring seal by the annular boss on described becket and the ring shaped stopper that is fixed on described becket axle head realize on axially spacing.
High compression height resilience radial seal assembly the most according to claim 1, it is characterised in that: in the inside circumference/outside circumference of described becket, described sealing structure is profile of tooth sealing surface or the metallic sealing section in evagination arc shape of indentation；Or described sealing structure is that profile of tooth covers flexible material sealing surface.
High compression height resilience radial seal assembly the most according to claim 1, it is characterized in that: in two described sealing structures on the inside circumference of described becket and outside circumference, one of them described sealing structure includes the O-ring seal on described becket, described O-ring seal by the annular boss on described becket and the ring shaped stopper that is fixed on described becket axle head realize on axially spacing；Another described sealing structure is the profile of tooth sealing surface of indentation or metallic sealing section or the profile of tooth in evagination arc shape covers flexible material sealing surface.
High compression height resilience radial seal assembly the most according to claim 1, it is characterized in that: described elastic supporting member for supporting optical member is elastic ring, described becket is positioned at described opening and is also fixedly provided with the baffle ring for being limited in described cannelure by described elastic ring.
High compression height resilience radial seal assembly the most according to claim 5, it is characterized in that: the inside circumference/outside circumference of described baffle ring is fixing with the side circumference cell wall of described cannelure to be connected, and has gap between outside circumference/inside circumference and the opposite side circumference cell wall of described cannelure of described baffle ring.
High compression height resilience radial seal assembly the most according to claim 5, it is characterised in that: described elastic ring is o-ring, C-shaped ring or helical spring；When described elastic ring is o-ring or C-shaped ring, described elastic ring offers and makes described opening and described blind end phase liquid flowing connection along the liquid flow hole self extended radially through.
High compression height resilience radial seal assembly the most according to claim 5, it is characterized in that: in described cannelure, the radial slot of described opening is wider than the radial direction groove width of described blind end, has for stopping the stop part that described elastic ring is axially moveable between described opening and described blind end.
9. according to the arbitrary described high compression height resilience radial seal assembly of claim 1 to 8, it is characterized in that: described black box is for the radial seal between inner tube and outer tube, described metal ring is located in said inner tube, described sealing structure on described becket inside circumference seals mutually with the outside circumference of said inner tube, the described sealing structure of described becket outside circumference seals mutually with the inside circumference of described outer tube, described becket is located on parts in said inner tube and outer tube regularly or said inner tube is provided with the defining flange for described becket carries out axial limiting with parts in outer tube both parts.
High compression height resilience radial seal assembly the most according to claim 9, it is characterized in that: the cavity between said inner tube and outer tube is divided into the first chamber and the second chamber being isolated by described black box, the described opening of described cannelure is positioned at the chamber that described first chamber is bigger with described second chamber the two chamber medium pressure, to form self-tightening effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394294.5U CN205534206U (en) | 2016-05-04 | 2016-05-04 | High radial seal assembly that kick -backs of high compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620394294.5U CN205534206U (en) | 2016-05-04 | 2016-05-04 | High radial seal assembly that kick -backs of high compensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205534206U true CN205534206U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620394294.5U Withdrawn - After Issue CN205534206U (en) | 2016-05-04 | 2016-05-04 | High radial seal assembly that kick -backs of high compensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205534206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782445A (en) * | 2016-05-04 | 2016-07-20 | 苏州宝骅机械技术有限公司 | High-compression high-springback radial seal assembly |
-
2016
- 2016-05-04 CN CN201620394294.5U patent/CN205534206U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782445A (en) * | 2016-05-04 | 2016-07-20 | 苏州宝骅机械技术有限公司 | High-compression high-springback radial seal assembly |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Shuangfeng town Taicang city Suzhou City, Jiangsu province 215415 rich economic development zone Patentee after: Suzhou Bao Hua sealing Polytron Technologies Inc Address before: Shuangfeng town Taicang city Suzhou City, Jiangsu province 215415 rich economic development zone Patentee before: Suzhou Baohua Mechanical Technology Co., Ltd. |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160831 Effective date of abandoning: 20180119 |