DE1675517C2 - Elastically deformable sealing jacket for pipeline taps - Google Patents

Description

The invention relates to an elastically deformable Diehtungsmantel between C- ^ housing sealing surfaces and a cock of a cock is arranged and a closed space for receiving a pressure medium contains, which is fed to the pressure medium chamber for the adjustable pressing of the sealing jacket will.

Hs is known to have a tap between the plug and the hole in the housing in which the Chick is stored to arrange food made of plastics, rubber or other materials in order to thereby to improve the sealing or a greater corrosion resistance . to achieve. The proper sealing of such linings depends to a large extent on it from the fact that the feed has sufficient elasticity and this elasticity over a long period of time maintains. In many cases, however, this requirement cannot be met.

From the German patent 724 308 a shut-off valve is known in which to seal the Plug in the cock housing between the plug and the cock housing made of an elastic metal existing Diehtungsmantel is arranged, which by a pressure medium against the housing sealing surfaces is pressable. This Diehtungsmantel is designed as a jacket surrounding the chick on all sides The part lying within the plug bore represents a tubular lining. At the top and The lower pin for the rotatable mounting of the plug is drawn into circumferential grooves and attached by welding. So that the metallic sealing jacket under the action of the Pressure medium in the direction of the housing sealing surfaces can expand, there are waves in some places in its wall. ;

This insulation jacket is e:; -. En ■■ ·. · ■ ratio; iiii!. 'I: ü I ornpii.-ie.Men hollow body, the.,. .Ι, τι: chick v .'- bsL a ^ eai a 1 rush / usainmenuc!, - t be n.uss. SJw na. lü-jilig is. : ate the ■:.; .. ■!,. iib der rlükeiihc'ii-üi · .. · ncgi-nde pipe lurid; · _ ·;} ', - ■. j) · ίΐί, ΐΛ .body ^: - '-''I! inside only by the -.- vliio- pressure u.- He:., j'-siru -τι.'s is peeled off. so dal3 csn.-itels! im naciii --- C ": Lm.. · <■ or if there is no Be ei; ¹ -! =! ■ -: .i ._- '-.! reoui-n J ^: ■ ('lU.'l:' - 'lcsic!';. Jal3 this part de- ■ · ιci _ · 11:. · '!) ie -: - tiii.ü ^ m'h j'c · ■ - ir . '<■ _ l <lii ;: ^T ;: ui the axis of the J :: ^! . ^: Der; o K .ik-Mii- ^.; ',. "Ii; - "ivif ■ -"'■-':,; ι .'ersu '·; tu: rci. ι iJ.Ji- i; ^1st .ic: deÜLselK-ii I.:;. .-, i-e'iri! "! 723 3 <) Λ is a

: 2: iiec: Hr-. ¹ -.:;: .- ■ and Me'irv. ciiciia! -. Ks.chi icbrn. at

, R ι / · '.. | j ^-n: .ie: i; ι>: ι; ■ "tiüeii K'.ikei and ■ la'iiiL - ..!.' .S.. - cn: ii.! ^ jKi !!). der Kükcoachs ^ /us.ii!-,neiuii, i kbaren i ~ ;: Ί.τι; ai; s cla ti>, _ hem material. /! - ^:. ( : -; m! Ti, ... u.ei i .Inet ι - ;. iJiese, i-'ormling ¹ r, - chüvL: ■. ::; bis, .- _: i; _c imcils * T- JiHIg tics Hahiiuel: his ·. -: -.'-'- iein! '.- !!! -. InΚ η cine-, Durchlkißiohres. 1-L ₁ - -.Ui-- ^y ! S \ m: ii .; nJrucku! des } '< ■: iii'inyr- a -.πι, ι lint' i.-iiisielibarc visual hood is provided -ti / itat with cavities vers. be hay.

This alt de, sealing corresponds to the essence according to a Skipfhui hsdicht, in the case of a Front face produces an axially directed pressure mn:, to Jadurci, a radial pressure of the elastic Diehtungskörpers to achieve Fs is generally known that with a stuffing box-like Seal the radially directed contact pressure decrease with increasing distance from the clamping ring.

The object of the invention is to provide an elastically deformable Diehtungsmantel with a closed'Druckmittelraum for a tap in its shape and arrangement to that effect improve that it is so supported on all sides in the end positions of the chick that it is initiated during initiation of the pressure medium cannot escape into the pressure medium space.

According to the invention, this object is in an elastically deformable Diehtungsmantel initially mentioned type solved in that the Diehtungsmantel only between the sealing surfaces of the housing and the plug is, is double-walled and in a direction approximately perpendicular to Axis of the flow bore has openings on opposite sides and that also all The narrow sides of the sealing jacket rest against supporting walls.

According to a further development of the invention it is provided that an intermediate wall in the sealing jacket is arranged, which divides the pressure chamber into two closed, pressurizable pressure chambers.

According to a further embodiment of the invention, the support walls exist on the end faces and on the flow bores made of rings and at the approximately perpendicular to the flow bores openings made of panes.

The Diehtungsmantel according to the invention has the shape of a cylinder, in the wall of which is Use for a through valve there are four openings. Since the cable only between the sealing surfaces of the housing and the plug, it can be easily installed as a whole and both for a fixed arrangement in the tap housing as well as for a rotatable arrangement to be used with the chick. The insulation jacket can consist of two foils lying close together.

L / I 575 5 17

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St- ¹ UiI, - ■>djU:.; ■ Ji.j Si ¹ ::.!:, .. 'dc- ^:) pJnr'. ΥλΙ ·· »! an ι) ,: η edges of the strength of the seal-

ranmes only a., lk-v ^ i "uerirce- \ 1 - ;;; ni now ;, Sf. uid, ä-imii d.-m gap between chicks 2

zachen den C-, ,,:, ιs ^ iijIkΓ,: i ^ 'tinci J ...: Kuk n ur.i üehiiusedichti'UichcP adapted. In the Speriski-

n. '. endii; is: ,, ._ .., _{1 (>} ^ ü ^ -v- 2 vid the ends of the passag-

I in A ^ uIm,, _; ··. ·, _P , .- l ü, ri.:!: ■: Jun- Im in dei 5 i ohrm- imVlahrMA-.; 2 through the discs 11. 12

Z -'- hnii'-e djive-i ..- lii and v .; _: , J! Kichu.iiien ·! naivr! -uedec ',;.

eii.uue; - .. f.s shows ~ [;,.; , j.j ,,, .i.ii-i.cs'.c'hcn Au.-Hilmmgsheispicl is dei

! ι-; a l.ang -. ^; .n- ■ ..: ._-, ZUindeii-al-os 1): -AVw. Miuinie! 6th i, .ppeiuaiulis; and nut a. · ιη l ::.

ni .: e;, vn /wi^,.jn Kuke-:, ·,.; li.ihn ^ h.-nis. iie «· -, ii" en RauiM / in A..ir, .ili.r "of a printing medium a ■> -

d.'ü Dichn ^ -snvuiU'l. '' ₁₀ ■ _{M; 11,;} , la-, durJi a Leiiimg 14 supplied ν-. π \!

I ■ ·;.!. - oilmen Λιι ,,, Ιν., Ί: u- [-. i _{(! it} ., ncm ve, - ί -: r -,!) ru.kinit! elr.u _: m prevailing pressure be \ v; rk;

t ::> i.ierteii scale. _{L. ;} . A., pivs-unn ■ Dielitun.i-'sinantels 6 against you

i ig. 3 an OüervJ-.nitt de Zvlmderi ^ hn-- in Picniilaci, - !! ^de:} .u ^ n-- 2 UNOE de = housing 1. At

c: iv.: r SÜMiitebene enihiüi: kr ί. ■ ■. n- I-- [, | _i: - \ - \ ^ | the forehead. Hen is the Dich'.u; igsnuintel 6 alNeiiij.

u id ". _s -.I ₁₁₁ VjI t \ ste walls; ihi; estiil. l. s' · that he goes to the ^ n

ί · ι g. 4 a schaiibiidlie ¹ Dai>iellun>; a dieh can not ou.

! ,! l ^ smaiitels. "n _or \ upre ninick of the dichuingsmantels against d ^1. ·.

in the housing ί of the cock, - ·. cm. Chick 2 ar.ueordnci. which can be rotated around an axis by changing the pressure in the pressure spindle 3 with the aid of a multiple VVer-e. At the bottom 20 mitieliaum can be changed. For the Beain'sehblindc the chick 2 with a pin 4 in a now 11 of the pressure nitteiru ies can the operation guide 5 of the housing; 1 stored. The chick can be used with TiK-dium or a foreign medium, just as easily stored directly in the housing without a pin. Between the plug 2 and the sealing surfaces pressure in the pressure medium space is expediently provided - the housing 1 is in elastically deformable seals or is completely eliminated.

processing jacket 6 arranged, which consists of F i e. 4 shows- The sealing jacket can be modified in a

lent shape . "Execution form inside with a double

To support the sealing jacket 6 are equipped on the wall concentric partition,

the end faces of the same rings 7, 8 are provided that the pressure medium space in two closed and

divided in the bore of the housing 1 against displacement 30 separately loadable pressure spaces. A

are secured. There is such a sealing jacket on the passage bores! is for a stopcock in

the sealing jacket! 6 supported by rings 9,10 , a line with mutually protruding

which is suitable for the passage bores in the housing 1, despite being used

mig surrounded and in the housing in a suitable manner of the operating medium for the application of the

are attached. ₃₅ pressure medium space of the sealing jacket an over-

The sealing jacket 6 continues to occur in one of the same on one side of the tap Direction approximately perpendicular to the axis of flow- the other side must be prevented. bores of the housing 1 on opposite sides of the seal designed according to the invention benli, 12 are supported. These washers are to be used- 40 ball valve.

1 sheet of drawings

Claims (1)

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. nthal '. das de;:, Dtuli i: i .; ''!γι:'.! Ί .ί. :: ι
'■ »arc :. Ynprcs- · .; .: es D.Jr -. "<n: ■ ■ '. · !! a. ! ie ;: ··. · -> ('ifiiih ■ 1 ι -ί '; \ - ί ^ν -! idii ¹ .1- .... ·:., ι; ,:. ,,.! ! Ρ one; \ i '.:' :: - i ¹ ;.:, ii. ,! üuui'i ¹ X; . ^ -vI.t,>. ilen Οπ ·; πη; .. · ■; :;. l.Vhti:! L'-iii.iii '; ■ - .πι Wed.' · ■ · 'π ': ':>. ai. hay kern / eic'-ie :. dali π him .in, 'Iu-lL · ^ .ιλΆ is arranged. ti ie .ion Diiukraum .r: ..- ¹ J; from closed. beaufsch! a..h.iie subdivided pressure areas. 3. Notice! according to. \ n> ii-uch I <><each: 2. indicated by this. that the Siii ^ uiin Jt. on the front sides and on the thou; "'.:!. f! ußhoiiriiiige': through Kmge (7 to 10) uiu!.: the openings (13) through discs (11. 12) yehiidet are.