CN1127545A - Sealing arrangement for a spindle guided in an axially movable manner out of a housing - Google Patents
Sealing arrangement for a spindle guided in an axially movable manner out of a housing Download PDFInfo
- Publication number
- CN1127545A CN1127545A CN95190338A CN95190338A CN1127545A CN 1127545 A CN1127545 A CN 1127545A CN 95190338 A CN95190338 A CN 95190338A CN 95190338 A CN95190338 A CN 95190338A CN 1127545 A CN1127545 A CN 1127545A
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- China
- Prior art keywords
- ring
- propagation
- lamina membranacea
- seal arrangement
- pressure part
- 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
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- 238000007789 sealing Methods 0.000 title claims abstract description 23
- 230000000694 effects Effects 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 5
- 238000009958 sewing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000002788 crimping Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000012856 packing Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000005056 compaction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/002—Sealings comprising at least two sealings in succession
- F16J15/004—Sealings comprising at least two sealings in succession forming of recuperation chamber for the leaking fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/002—Sealings comprising at least two sealings in succession
- F16J15/008—Sealings comprising at least two sealings in succession with provision to put out of action at least one sealing; One sealing sealing only on standstill; Emergency or servicing sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
- F16J15/48—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Sealing Devices (AREA)
Abstract
The invention concerns a sealing arrangement for a spindle (1) which is guided in an axially movable manner out of a housing (2) which is pressurized by an operating medium. The arrangement comprises a plurality of packing box - annular sealing elements (16, 18, 21, 23, 25, 27) disposed one after the other at axial spacings in an annular chamber (5) formed between the spindle (1) and the housing (2). The annular sealing elements (16 ff) are axially pre-tensioned from the housing interior (40) by a pressure-transfer component (6) upon which the operating medium acts.
Description
The present invention relates to a kind ofly be used for a shaft seal that can move axially and can shift out from shell, high pressure pipe line or a similar devices under the working medium pressure effect according to Patent right requirement 1 is as described in the preamble.
By known this class seal arrangement of DE4001731A1.The characteristics of known this seal arrangement are, in order to keep in repair outside seal arrangement, that is change that group seal ring externally, and the shell under pressure or the work of similar devices need not be interrupted.Yet for the seal arrangement of enclosure and the describing love affairs condition is different.They can only could be changed under out-of-work situation.
In addition, as some every other traditional stuffing box seal arrangements, in the known this seal arrangement, seal ring also will be from the outside pretension vertically, be tightened in advance and can make innermost those seal rings of shell that enough radial deformations are also arranged, to obtain desired sealing.This just means that most of axial force is converted into unnecessary big radial force along the length of seal arrangement.This big radial force causes those seal rings of housing exterior to be out of shape enduringly.Especially, acted on big radial force along the total length of seal arrangement on axle, the consequence of bringing is to make axial ratio be difficult to activity.The wearing and tearing of seal ring have also unnecessarily been increased thus.
It is that structure length is bigger that this known stuffing box seal arrangement also has characteristics.Therefore, the seal ring of seal arrangement, especially seal arrangement has the danger that is subjected to additional load, and this additional load is to be caused by the bending of the axle that will be sealed or vertical bending.
Also have, this known structure is because Temperature Influence makes axle when its length has altered different diameter, even it fails to take measures to guarantee also sufficient sealing can be arranged in this case.When axle moved axially, this altered diameter caused that each seal ring correspondingly changes radial load and radial deformation, and they can cause blow-by after long-term the use.
The purpose of this invention is to provide a kind of seal arrangement that begins described type, in this seal arrangement, to the independent pretension of those seal rings enclosure and that sealing is taken the main responsibility, thereby can significantly reduce outside pretightening force vertically, and significantly reduced the total structure length of this device, meanwhile can not lose the desired seal effect.
Achieve the above object by of the present invention, seal ring is passed through a propagation of pressure part axial pretightening that is loaded by working medium from enclosure.Adopt such measure, make enclosure and thereby be the seal ring that the sealing of axially movable axle is taken the main responsibility, obtained a kind of axial pretightening independent and that depend on working medium pressure.Owing to load from enclosure, these in the enclosure the seal ring of portion and in important position, that is have the place of the shell inner cavity of pressure effect to make axle that suitable seal be arranged at bigger program radial deformation the most close to the sealing of axle.Therefore externally its load of seal arrangement part obviously reduces vertically.Seal ring vertically outside pretightening force thereby also can reduce.This equally also can shorten the structure length of seal arrangement, consequently, when axle moves axially, the crooked or vertically bending of axle takes place hardly.Therefore, accomplished to make the most strong place that the next-door neighbour has the working medium place of pressure that is sealed in by the present invention.In addition, make in the enclosure that the axial pre tightening force of those seal rings of portion depends on load, that is depend on that the way of portion's working medium pressure has great importance in the enclosure.So sealing is not to be subjected to unnecessary high load according to the strongest sealing that will obtain, and only decides heap(ed) capacity according to need of work.Thereby can prolong the life-span of seal ring greatly.
Propagation of pressure part by setting of the present invention preferably includes a slide bushing that is run through by axle, and it is connected especially welding by the inboard fluid-tight of lamina membranacea and shell ground.Therefore formed an enough big propagation of pressure face.
Can satisfy the needs of propagation of pressure by the structural design of claim 3 and 4, the propagation of pressure that also is about to working medium is given by on the slide bushing that axle connected, and thereby passes to inner most those seal rings of shell.
By claim 5, the wall thickness of propagation of pressure part lamina membranacea radially outwards reduces from slide bushing, reduces especially continuously.Thus and in conjunction with by described one or more annular corrugated of claim 4, can accomplish that slide bushing is not subjected to moment of flexure when slide bushing is mobile vertically, that is to say, slide bushing and lamina membranacea can be exactly vertically that is be parallel to vertically moving of axle.By the described measure of claim 5, causing the transition zone of propagation of pressure part between slide bushing and lamina membranacea is the very strong structure of a kind of rigidity.
A kind of specific embodiment by seal arrangement of the present invention, the slide bushing of propagation of pressure part passes the shell insertion and is equipped with in the ring cavity of seal ring, in the outer end of slide bushing that is insert that end of ring cavity, be provided with one that radially outwards protrude and with the cooperative block in ring cavity the inner that is bottom, in form especially one can be screwed in baffle ring on the slide bushing by screw thread.This baffle ring has limited slide bushing the moving axially towards the shell internal direction of propagation of pressure part.Slide bushing moving axially in opposite direction then is subjected to being connected on the slide bushing, especially make one or be contained in separately on the slide bushing excircle with lamina membranacea, and with the restriction of the inboard cooperative backstop of shell.
In order to change any one locational seal ring of axle, taked some by the described measure of claim 10 to 12.Opposite with above-mentioned prior art, all here that is also comprise inner most those seal rings of shell, all can be in running, be in the arbitrary position or change under the working state arbitrarily at axle.This equally also is applicable to the maintenance work of seal arrangement being engaged in other, for example changes spacing body etc.With regard to this respect, compare with hitherto known prior art by seal arrangement of the present invention, mean and obtained great progress.
The hydraulic pressure cavity that describes in detail in claim 13 and 14 can be used to judge whether seal arrangement needs to be serviced.In addition, the result who does like this can avoid the outside seepage of working medium certainly.When working medium belonged to corrosivity and gas that is harmful to health or liquid, this point was just especially significant.
The measure described by claim 15 to 18 equally also has important meaning, takes these measures, and seal ring is radially supporting movably, can not cause damaging their sealing effect.Therefore, crooked or vertical bending of axle can be compensated without a doubt.This is equally applicable to because temperature factor causes the influence that the vary in diameter of axle is brought.
Describe the embodiment who presses seal arrangement of the present invention in detail by means of accompanying drawing below.Accompanying drawing is represented is 1/2nd the longitudinal section of the foregoing description, wherein, can represent with label 1 from the axle that shell 2 axially shifts out.Shell 2 inner chambers under the working medium pressure effect are arranged, represent with label 40.Represented seal arrangement comprises a kind of so-called stuffing box seal arrangement among the figure, and it is contained in the inside of a ring cavity 5 that forms between axle 1 and the shell 2.Stuffing box seal arrangement in ring cavity 5 comprises following member from outside to inside:
-cup spring 29
-hold-down ring 28
-can be axially, the lip ring 27 of radial deformation
-annular slide plate 26
-seal ring 25
-annular slide plate 24
-seal ring 23
-annular slide plate 22
-seal ring 21
The spacing body 19 of-band radial hole 20
-seal ring 18
-annular slide plate 17
-seal ring 16
-annular slide plate 31
-scraper ring 14
-seal washer 13
Spacing body 19 will have the continuously arranged seal ring of axial spacing, be divided into vertically interior group of seal ring 16,18 and outer group of seal ring 21,23,24 and 27 vertically.Spacing body 19 footpath is by shell aperture 32, but is communicated with hydraulic pressure cavity 34 fluids of the ripple shell type of design in addition of a sealing and elastic expansion.Be located at connecting tube 33 between shell aperture 32 and the hydraulic pressure cavity 34.Outer housing cover 3 sealings that ring cavity 5 extends with a threaded shaft 1 in outside vertically.For this purpose, outer housing cover 3 usefulness screw threads are fixed on the shell 2, cup spring 29 is at seal ring that is stuffing box seal ring 27,25,23,21, acted on an elasticity pretightening force vertically on 18 and 16, at this moment, in the enclosure on those seal rings 16,18 of portion the influence of this axial pre tightening force be minimum.Therefore, the axial pretightening of those seal rings 16,17 of enclosure carries out from enclosure, and promptly via a propagation of pressure part 6, this propagation of pressure part 6 is loaded by working medium.The propagation of pressure part comprises one by axle 1 slide bushing that passes 9, and slide bushing 9 is connected with the inboard fluid-tight ground of shell 2 by lamina membranacea 44, that is welding.Corresponding ring-type weld seam is represented with label 7.Lamina membranacea 44 is designed to annual disk, and has a high elasticity section 8 along extending circumferentially.This high elasticity section 8 extends near the excircle of lamina membranacea 44, and its feature is the groove of a ring-type.In addition, it can also be seen that the wall thickness of lamina membranacea 44 radially outwards reduces continuously from slide bushing 9, in the location of groove 8 wall thickness minimum.Adopt this structure to accomplish, the transition zone between slide bushing 9 and lamina membranacea 44 has enough rigidity.So that the distortion by soft flexible groove 8 can guarantee, slide bushing and lamina membranacea together, with working medium pressure load in the enclosure 40 correspondingly, can the essentially no moment of flexure earth's axis to moving.After taking above-mentioned these measures, can not influence axle 1 and the irrelevant movable property of passing slide bushing 9 of its relative position.
Can also see by figure, the slide bushing 9 of propagation of pressure part 6 passes shell 2 insertions seal ring 16 is housed, 18,21,23,25, in 27 the ring cavity 5, at this moment, in the outer end of slide bushing 9 that is insert that end of ring cavity 5, be provided with one radially outwards protrude and with the cooperative block in ring cavity 5 the inners that is bottom, this block is one in form can be screwed in baffle ring 10 on the slide bushing 9 by screw thread.Baffle ring 10 has limited slide bushing 9 along inside direction that is moving axially along the arrow E direction.
Slide bushing 9 is in opposite direction that is along the moving axially of arrow D direction, and the lamina membranacea 44 that is subjected to make one with slide bushing 9 limits with shell 2 relevant inboard actings in conjunction.Also it is also conceivable that, directly establish an independent baffle ring by the convex shoulder of lamina membranacea 44 on the excircle of slide bushing 9, it is used for outer vertically the moving of limit slippage lining 9, and still with the inboard co-operation of lamina membranacea shell 2.
Propagation of pressure part 6 and the shell 2 inboard cavitys that constitute are ring cavity 42 among the figure, are communicated with surrounding fluid via the hole 11 of sewing that is located in the casing wall.What therefore act in this chamber 42 is ambient pressure.The propagation of pressure part suffered thereby be an outside pressure load of effect vertically, this is that pressure by the working medium in the portion 40 in the enclosure causes.So the axial pretightening effect of those seal rings 16,18 of enclosure is from enclosure that is cause in the direction of arrow D.
Significant way also has, inboard that is pressure side at propagation of pressure part 6, in other words at the pressure side of propagation of pressure part 6 lamina membranaceas 44, the lamina membranacea 36 that another threaded shaft 1 extends is set, and it has defined a cavity 43 between by itself, axle 1 and lamina membranacea 44, and this cavity 43 is by the annular gap 38 between lamina membranacea 36 and the axle 1, be communicated with the enclosure 40 under being in pressure, and pass through the radially opening of setting on the other hand, especially the hole 39, are communicated with enclosure 40.A kind of heat-resisting steel plate of lamina membranacea 36 usefulness is designed to the type of cup spring, and welds along the lamina membranacea 44 fluid-tight ground of its outer annulus edge and propagation of pressure part 6.The limit 37 outwardly-bent or crimpings that lamina membranacea 36 extends around axle 1, and be complementary with the radius of slide bushing 9 facing to its inward flange 45, consequently, under normal working condition (as shown in drawings), that is at seal ring 16,18,21,23,25,27 when having enough sealings, the inward flange 45 that faces it on this outwardly-bent or limit 37 of collapsing and the slide bushing 9 distance of being separated by.When sewing or removing seal ring 16,18,21,23,25,27 o'clock, lamina membranacea 36 outwardly-bent or the limit 37 that collapses, by the resiliently deformable of lamina membranacea 36, clamp-on in the gap between the relevant inward flanges 45 of axle 1 and slide bushing 9, thereby at axle 1 and slide bushing 9 or be pressed into to transmit and realize sealing between the part 6.Mention as the front, at assembling stuffing box seal ring or seal ring 16,18,21,23,25,27 o'clock, by externally cup spring 29 vertically, at seal ring 16,18,21,23,25, added the axial pre tightening force of a minimum and the radial compaction power that is caused by distortion on 27, they guarantee that axle 1 has the sealing 1 of minimum level.Therefore stuffing box externally seals.By this process, it is 9 inside that propagation of pressure part 6 or its slip lining is detested, that is move in the direction of arrow E, promptly overcomes the effect of the elastic segments 8 of lamina membranacea 44.This inside axial motion is subjected to the restriction of baffle ring 10.Therefore, as long as baffle ring 10 is under the inoperative state, this system just is in a kind of stress-free state of equilibrium.This means, be in outmost that seal ring or stuffing box seal ring 27 vertically, and be on the inner most scraper ring 14 of shell, effect has identical axial force, and this axial force changes into radial compaction power according to material constant.When the pressure in the enclosure 40 improves, on the lamina membranacea 44 of propagation of pressure part 6, acted on an axial force.This axial force is via slide bushing 9 and exterior edge face 41 thereof, passes to scraper ring and thereby also passes to the seal ring 16,18 of enclosure.The pressure that is produced is proportional with the pressure reduction that will seal there, and this pressure always is higher than the pressure minimum that is caused by cup spring 29.When scraper ring 14 was used to prevent axle 1 motion, the solid constituent of medium was outside, that is oozes out in the direction of arrow D.In the represented embodiment of accompanying drawing, seal ring 16,18,21,23,25,27 and oil deflector 14 all have the end face of taper.They arrange by means of these conical surfaces close to each otherly, when being subjected to axial pressure, make them can alternately radially outside and inside jam-packed because stuffing box seal ring and axle 1 or and shell 2 between annular space 46 or 46 ' (seeing figure) arranged, so might realize above-mentioned mobile.Thereby, all can obtain good sealing not only with respect to axle 1 but also with respect to shell or ring cavity 5.Between axially adjacent seal ring, respectively be provided with an annular slide plate 15,17,22,24,26.When these annular slide plates 15,17,22,24,26 made at the diameter of axle different and spool 1 heart different with the axis of ring cavity 5, seal ring or stuffing box seal ring were along the gradient radially pressurization relevant with direction and relative movement can be carried out or easier carrying out.If the seal arrangement in portion district has really produced blow-by in the enclosure, then the leakage of Chan Shenging flows into the hydraulic pressure cavity of having mentioned 34 by hole 20, shell 32 and connecting tube 33 in the spacing body 19.Under normal circumstances, hydraulic pressure cavity 34 is in by machinery and causes under the pretightening force, that is to say in the chamber in 34 to be in low pressure.Therefore, can stretch in the direction of arrow A, not need leakage to produce a high pressure in order to make hydraulic pressure cavity 34.Produce a high pressure at the leakage that reaches regulation.When reaching the leak volume of regulation, attaching troops to a unit is closed in an electric contact 35 of hydraulic pressure cavity 34, thereby a signal has taken place.As long as the leakage of these working mediums is drawn back annex again by the way of mechanism, this hydraulic pressure cavity 34 can be compacted again so then.Blanking time between two leakage signals, can be used for illustrating the size of leak volume, and the seal arrangement that whether needs repairing can be described.In this course, in any case the exterior portion of stuffing box seal arrangement is still sealing, does not uncontrollably flow in the surrounding environment and go so do not have working medium.Change the seal ring 16 and 18 or oil scraper ring 14 of damaged enclosure, thereby can under the arbitrary position of axle 1, carry out, and will be by means of another piece lamina membranacea 36 of having mentioned.Under normal working condition, form an annular space 38 between lamina membranacea 36 and the axle 1.There is a hole 39 at excircle place at contiguous lamina membranacea 36 on the lamina membranacea 36, the free cross-section area of its cross section ratio gap 38 is little.When leakage when the direction of arrow DF flows by gap 38, solid is brought in the chamber 43 between lamina membranacea 36 and propagation of pressure part 6 or its lamina membranacea 44, and deposits there.Yet these solids or solid particle can leave chamber 43 again by hole 39.If leak volume is bigger, the local or whole obstruction of the solid particle that hole 39 is brought is so produced a pressure reduction between chamber 40 and the mentioned lamina membranacea chamber 43 in the enclosure.This pressure reduction makes lamina membranacea 36 outside, that is motion in the direction of arrow D.Therefore annular space 38 is progressively reduced, and has consequently correspondingly improved above-mentioned pressure reduction.At last, the outwardly-bent or limit 37 that collapses on the lamina membranacea 36 abuts on that relevant on the slide bushing 9 inward flange 45, and clamp-ons in the gap between axle 1 and the above-mentioned inward flange 45 and go, and has so obtained a kind of 1 metallic seal mechanism.Under this position of lamina membranacea 36, whole seal rings or stuffing box seal ring 16,18,21,23,2,5,27, logotype scraper ring, spacing body etc. can take out from ring cavity 5, and available new seal ring is replaced.In this case, the work of equipment need not be interrupted.Lamina membranacea 36 preferred design two stable status are arranged, that is to say that one is the state that annular gap 38 is arranged shown in the drawings; Another is pure metallic seal state.Under two states, all should keep lamina membranacea 36 not to be subjected to the effect of external force.Inside vertically by axle 1, that is move in the direction of arrow E, can make lamina membranacea 36 become described the sort of state, that is free under the state of metallic seal from the back.Another kind of alternative plan also can be to pressurize to lamina membranacea 36 by shell aperture 32 and spacing body 19.By suitably designing lamina membranacea 36 (internal stress under pressure-less state), can accomplish to make these two stable status is not a continuous process.Lamina membranacea 36 is bistable in such an embodiment, that is to say, the end stably to remain on the position of opening, and the end stably to remain on the position of sealing.The advantage of doing like this is that clearly stipulate two positions of this of lamina membranacea.
Disclosed whole features in application documents, if their individual events or combine with respect to Prior art is new, all as the important claim of the present invention.
Claims (18)
1. being used for one can move axially and can be from a shell (2) under the working medium pressure effect, the seal arrangement of the axle that shifts out in high pressure pipe line or the similar devices (1), this seal arrangement is by a plurality of stuffing box seal rings (16,18 that have in the ring cavity (5) that axial spacing ground is arranged in axle (1) and shell (2) formation continuously, 21,23,25,27) form these stuffing box seal rings (16,18,21,23,25,27) be divided into vertically interior group of seal ring (16 by a spacing body (19), 18) and outer group of seal ring (21 vertically, 23,25,27), spacing body (19) is communicated with hydraulic pressure cavity (34) fluid via a hole (32) that is located in the shell (2), and, seal ring (16,18,21,23,25,27) pretension flexibly vertically, it is characterized by: with seal ring (16,18,21,23,25,27) pass through a propagation of pressure part (6) that loads by working medium pretension vertically from enclosure (40).
2. by the described seal arrangement of claim 1, it is characterized by: propagation of pressure part (6) comprises a slide bushing (9) that is passed by axle (1), and it is connected via the inboard fluid-tight of lamina membranacea (44) and shell (2) ground, and especially welding forms ring-type weld seam (7).
3. by the described seal arrangement of claim 2, it is characterized by: propagation of pressure part (6) lamina membranacea (44) is designed to annular disk, and has a high elasticity section (8) along extending circumferentially.
4. by the described seal arrangement of claim 3, it is characterized by: elastomeric section (8) extends near the excircle of lamina membranacea (44), and it comprises a material lightening holes and/or one or more annular corrugated.
5. by one of claim 2 to 4 described seal arrangement, it is characterized by: the wall thickness of propagation of pressure part (6) lamina membranacea (44) radially outwards reduces from slide bushing (9), reduces especially continuously.
6. by the described seal arrangement of claim 5, it is characterized by: propagation of pressure part (6) lamina membranacea (44) has minimum wall thickness in its elastic segments (8).
7. according to each described seal arrangement of claim 1 to 6, it is characterized by: the slide bushing (9) of propagation of pressure part (6) passes shell (2) insertion seal ring (16 is housed, 18,21,23,25,27) in the ring cavity (5), in the outer end of slide bushing (9) that is insert that end of ring cavity (5), be provided with one radially outwards protrude and with the cooperative block in the inner that is bottom of ring cavity (50), being one especially in form can be screwed in baffle ring (10) on the slide bushing (9) by screw thread.
8. by each described seal arrangement of claim 1 to 7, it is characterized by: the inboard that propagation of pressure part (6) is relevant with shell (2) constitutes cavity, especially ring cavity (42), and it can be communicated with by hole (11) surrounding fluid of sewing in casing wall.
9. according to the described seal arrangement of claim 7 to 8, it is characterized by: the moving axially of slide bushing (9) of propagation of pressure part (6), on the one hand, that is along inside direction, be located at the inner that is be located to insert seal ring (16 is housed, 18,21,23,25,27) block on that end of ring cavity (5) is the restriction of baffle ring (10) especially, and on the other hand, that is, be connected on the slide bushing (9) along outside direction, especially make one with lamina membranacea (44) or be contained in separately on slide bushing (9) excircle, and with restriction towards the inboard coefficient backstop of shell (2) of lamina membranacea (44).
10. according to each described seal arrangement of claim 1 to 9, it is characterized by: at propagation of pressure part (6) inboard that is pressure side, especially at the pressure side of propagation of pressure part (6) lamina membranacea (44), be provided with the lamina membranacea (36) that another extends around (1), lamina membranacea (36), formation between axle (1) and propagation of pressure part (6) that is the lamina membranacea (44) cavity (43), its direction is by the annular gap (38) between this another piece lamina membranacea (36) and the axle (1), be communicated with the enclosure (40) under being in pressure, and on the other hand by the opening along the diametric(al) setting, especially hole (39) are communicated with enclosure (40).
11. by the described seal arrangement of claim 10, it is characterized by: this another special-purpose lamina membranacea (36) is designed to cup spring, along its outer annulus edge and propagation of pressure part (6), that is with the lamina membranacea (44) of propagation of pressure part (6), fluid-tight ground connects, especially welding.
12. according to the described seal arrangement of claim 10 to 11, it is characterized by: the outwardly-bent that is crimping in limit (37) that this another piece lamina membranacea (36) extends around axle (1), so that detest the radius of the inward flange (45) that faces lamina membranacea (36) on (9) is complementary with propagation of pressure part (6) that is its slip lining, at this moment, under normal operating conditions, especially seal ring (16,18,21, when 23,25,27) enough sealings being arranged, outwardly-bent or the limit (47) that collapses of this another piece lamina membranacea (36), the inward flange of going up facing to it with propagation of pressure part that is its slide bushing (9) (45) separates a distance; Seal ring (16 is taking place, 18,21,23,25,27) sew or the situation of removing under, this another piece lamina membranacea (36) outwardly-bent or the limit (37) that collapses, by the resiliently deformable of lamina membranacea (36), insert in the gap between the upward relevant inward flange (45) of axle (1) and propagation of pressure part that is its slide bushing (9), thereby between axle (1) and propagation of pressure part (6) or its slide bushing (9), realize sealing.
13. each the described seal arrangement according to claim 1 to 12 is characterized by: the hydraulic pressure cavity (34) that is communicated with spacing body (20) fluid is used to receive the working medium of sewing, and hydraulic pressure cavity (34) is designed to flexible, especially the ripple shell type.
14., it is characterized by: for hydraulic pressure cavity (34) sets sensor, especially an electric contact (35), when hydraulic pressure cavity (34) overinflation and thereby it sends a signal when not allowing to sew according to the described seal arrangement of claim 13.
15. each described seal arrangement according to claim 1 to 14, it is characterized by: seal ring (16,18,21,23,25,27) by scraper ring (14) with in case of necessity by a sealing gasket (13), be bearing on the slide bushing (9) of propagation of pressure part (6), that is be bearing on its exterior edge face (41).
16. each described seal arrangement according to claim 1 to 15, it is characterized by: seal ring (16,18,21,23,25,27) and in case of necessity also have scraper ring (14) respectively to have the end face of taper, they arrange by means of these end faces close to each otherly, when axial pressure, make them can replace radially outside and radially inside jam-packed.
17., it is characterized by: between the axially adjacent seal ring (16,18,21,23,25,27), respectively be provided with an annular slide plate (15,17,22,24,26) according to the described seal arrangement of claim 16.
18. each the described seal arrangement according to claim 1 to 17 is characterized by: with covering (3) with seal ring (16,18,21,23,25,27) be fixed in the ring cavity (5) that constitutes between axle (1) and the shell (2), and at lid (3) and seal ring (6,18,21,23,25,27) be provided with spring, especially a cup spring (29) and a hold-down ring (28) between as middle connection set.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4414174.2 | 1994-04-22 | ||
| DE4414174A DE4414174A1 (en) | 1994-04-22 | 1994-04-22 | Sealing arrangement for a spindle guided axially out of a housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1127545A true CN1127545A (en) | 1996-07-24 |
Family
ID=6516225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95190338A Pending CN1127545A (en) | 1994-04-22 | 1995-04-20 | Sealing arrangement for a spindle guided in an axially movable manner out of a housing |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0705400A1 (en) |
| JP (1) | JPH08512396A (en) |
| KR (1) | KR960703215A (en) |
| CN (1) | CN1127545A (en) |
| BR (1) | BR9506215A (en) |
| CA (1) | CA2165686A1 (en) |
| DE (1) | DE4414174A1 (en) |
| WO (1) | WO1995029354A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167522A (en) * | 2018-02-11 | 2018-06-15 | 江苏神通阀门股份有限公司 | A kind of protective tooling for installing anti-fugacity filler |
| CN108361435A (en) * | 2018-02-11 | 2018-08-03 | 江苏神通阀门股份有限公司 | A kind of protective tooling and application method of the anti-fugacity filler of installation |
| CN110195799A (en) * | 2019-06-18 | 2019-09-03 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Valve stem seal monitors compensation and emergency set automatically |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0004949D0 (en) | 2000-03-02 | 2000-04-19 | Needham David M | Fluid flow proportioning device |
| DE602006021134D1 (en) * | 2006-03-17 | 2011-05-19 | Carrara S P A | Functional device, such as switching valve with sealing arrangement |
| WO2010121147A1 (en) * | 2009-04-16 | 2010-10-21 | Conformis, Inc. | Patient-specific joint arthroplasty devices for ligament repair |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2484663A (en) * | 1946-11-01 | 1949-10-11 | Crane Co | Pressure sealed stuffing box |
| US3048412A (en) * | 1959-04-27 | 1962-08-07 | Union Oil Co | Shaft seal |
| CH652183A5 (en) * | 1981-08-24 | 1985-10-31 | Matkemi Ag | DEVICE WITH AN INTERIOR FOR A FLUID AND SEALANT AND USE OF THE DEVICE. |
| US4795171A (en) * | 1986-09-02 | 1989-01-03 | Federico Quevedo Del Rio | Self-pressurized shaft or closure seal |
| US4899899A (en) * | 1989-06-21 | 1990-02-13 | Triten Corporation | Pressure vessel |
-
1994
- 1994-04-22 DE DE4414174A patent/DE4414174A1/en not_active Withdrawn
-
1995
- 1995-04-20 BR BR9506215A patent/BR9506215A/en not_active Application Discontinuation
- 1995-04-20 EP EP95917344A patent/EP0705400A1/en not_active Withdrawn
- 1995-04-20 WO PCT/EP1995/001487 patent/WO1995029354A1/en not_active Application Discontinuation
- 1995-04-20 CN CN95190338A patent/CN1127545A/en active Pending
- 1995-04-20 CA CA002165686A patent/CA2165686A1/en not_active Abandoned
- 1995-04-20 KR KR1019950705835A patent/KR960703215A/en not_active Application Discontinuation
- 1995-04-20 JP JP7527347A patent/JPH08512396A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167522A (en) * | 2018-02-11 | 2018-06-15 | 江苏神通阀门股份有限公司 | A kind of protective tooling for installing anti-fugacity filler |
| CN108361435A (en) * | 2018-02-11 | 2018-08-03 | 江苏神通阀门股份有限公司 | A kind of protective tooling and application method of the anti-fugacity filler of installation |
| CN108167522B (en) * | 2018-02-11 | 2019-06-18 | 江苏神通阀门股份有限公司 | A kind of protective tooling for installing anti-fugacity filler |
| CN110195799A (en) * | 2019-06-18 | 2019-09-03 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Valve stem seal monitors compensation and emergency set automatically |
| CN110195799B (en) * | 2019-06-18 | 2020-07-07 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Automatic monitoring compensation and emergency device for valve rod sealing |
Also Published As
| Publication number | Publication date |
|---|---|
| KR960703215A (en) | 1996-06-19 |
| DE4414174A1 (en) | 1995-10-26 |
| EP0705400A1 (en) | 1996-04-10 |
| JPH08512396A (en) | 1996-12-24 |
| CA2165686A1 (en) | 1995-11-02 |
| BR9506215A (en) | 1997-09-30 |
| WO1995029354A1 (en) | 1995-11-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |