NO764174L - PIPE CONNECTION. - Google Patents
PIPE CONNECTION.Info
- Publication number
- NO764174L NO764174L NO764174A NO764174A NO764174L NO 764174 L NO764174 L NO 764174L NO 764174 A NO764174 A NO 764174A NO 764174 A NO764174 A NO 764174A NO 764174 L NO764174 L NO 764174L
- Authority
- NO
- Norway
- Prior art keywords
- sealing sleeve
- pipe
- pipe connection
- ring
- sleeve
- Prior art date
Links
- 238000007789 sealing Methods 0.000 claims description 60
- 239000000463 material Substances 0.000 claims description 27
- 239000004033 plastic Substances 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 230000009969 flowable effect Effects 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 230000004323 axial length Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/002—Sleeves or nipples for pipes of the same diameter; Reduction pieces
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
- F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
- F16L23/0286—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder the shoulder not being formed from the pipe
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/20—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
- Joints With Sleeves (AREA)
- Gasket Seals (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Description
Rørkopling.Pipe connection.
Den foreliggende oppfinnelse vedrører en rørkopling for ubearbeidete rørender, omfattende en tetningshylse av plast som er skjøvet inn på rørendene som flukter med hverandre og støter an mot hverandre, idet hylsens ytterflate utvides konisk fra begge ender til en aksialt midtre omkrets og det på denne fra begge ender er påskjøvet flensringer som er innbyrdes forspennbar. The present invention relates to a pipe coupling for unprocessed pipe ends, comprising a plastic sealing sleeve which is pushed onto the pipe ends which are flush with each other and abut against each other, the outer surface of the sleeve being expanded conically from both ends to an axially central circumference and on this from both ends are pushed onto flanged rings which can be mutually pre-tensioned.
En slik rørkopling er kjennetegnet .ved atrør uten-videre .r bearbeidelse, f.eks. påsveisete -flensender,vkan forbindes trykktett med hverandre. Such a pipe connection is characterized by pipes without further processing, e.g. welded on - flange ends, which can be pressure-tightly connected to each other.
Det er tidligere foreslått å fremstille en"tetningshylse. av plastisk; formbart, men elastisk, materiale,.- fortrinnsvis stål. ~ =.. It has previously been proposed to produce a "sealing sleeve" made of plastic; malleable, but elastic, material, preferably steel. ~ =..
Et slikt materiale; vil imidlertid, neppe egne seg i praksis idet-de-trykk som utøves for å oppnå^ god tetning ikke står til rådighet."-i-t . Til dette er elastisiteten hos stål- altfor'stor.. One such material; will, however, hardly be suitable in practice as the pressure that is exerted to achieve a good seal is not available."-i-t . The elasticity of steel is far too great for this..
Formålet med oppfinnelsen er å frembringe en rørkopling av ovennevnte type som har bedre tetningsegenskaper og lenger levetid enn kjente rørkoplinger. The purpose of the invention is to produce a pipe coupling of the above type which has better sealing properties and a longer life than known pipe couplings.
Dette er ifølge oppfinnelsen oppnådd ved at plastmaterialetAccording to the invention, this is achieved by the plastic material
i tetningshylsen består av polyolefiner med en krystallinsk andelin the sealing sleeve consists of polyolefins with a crystalline proportion
på høyst 24%.of a maximum of 24%.
Som følge av anvendelsen av disse polyolefiner, særlig slike med lav k-verdi, dvs. svakt krystallinske materialer, oppnås det at materialet ved forspenning blir amorfit dersom krystallene ved forspenningen ikke kan flyte bort. Materialet har derved en krympeevne. Betinget av forspenningen av flensringene flyter materialet til den ringformete spalte som skal tettes, slik at rørene ved deres endeflater kan presses fast sammen. As a result of the use of these polyolefins, especially those with a low k-value, i.e. weakly crystalline materials, it is achieved that the material becomes amorphous during prestressing if the crystals cannot flow away during the prestressing. The material thereby has a shrinking ability. Conditioned by the prestressing of the flange rings, the material flows to the annular gap to be sealed, so that the pipes at their end surfaces can be pressed firmly together.
Forsøk har vist at rørkoplingen ifølge oppfinnelsen kan be-lastes med trykk i størrelsesorden 96-98 kg/cm2 indre trykk før ett av rørene på grunn av det indre trykk smetter aksialt ut av tetningshylsen. Experiments have shown that the pipe coupling according to the invention can be loaded with pressure in the order of 96-98 kg/cm2 internal pressure before one of the pipes slips axially out of the sealing sleeve due to the internal pressure.
Fortrinnsvis er tetningshylsen omtrent ved midten langsPreferably, the sealing sleeve is approximately midway along
dens indre omkrets utstyrt med et som anslag virkende fremspring hvis diameter er litt mindre enn rørendenes ytterdiameter... fortrinnsvis ca 3/lo mm. Derved oppnås det flensringenes material-opphoping ved forspenningen av flensringene ikke går utover, slik at rørenes endeflater danner fast anlegg mot hverandre og så å si er omgitt av en tetningssvulst. its inner circumference provided with a projection acting as a stop, the diameter of which is slightly smaller than the outer diameter of the pipe ends... preferably about 3/lo mm. Thereby, it is achieved that the material accumulation of the flange rings does not go beyond the pre-tensioning of the flange rings, so that the end surfaces of the pipes form a firm contact with each other and are, so to speak, surrounded by a sealing swelling.
Et annet formål med oppfinnelsen er å frembringa en koplingAnother object of the invention is to produce a coupling
som også er holdbar overfor store trykk og som kan fremstilles hurtig, når det er nødvendig å utligne store avvik mellom diametr-ene hos rørene som skal forbindes med hverandre. which is also durable against high pressures and which can be produced quickly, when it is necessary to compensate for large deviations between the diameters of the pipes to be connected to each other.
Ifølge et.ytterligere - trekk ved oppfinnelsen er dette opp-According to a further feature of the invention, this is
nådd ved at tetningshylsens ytterflate er rihgformétprof ilert": • .achieved by the outer surface of the sealing sleeve being contoured": • .
Ved hjelp av.disse profilringer,.som løper, koaksialt eller" Using.these profile rings,.which run, coaxially or"
i det minste stort sett koaksialt med tetningshylsen",! utøves-det v. ved forspenningen,. dvs . ved innvirkning, av., trykk. på-, tetningshylsen, .-et trykk på-plastmaterialet fortrinnsvis . i området. f or disse: pro-. filer.- Idet-plastmaterialet er flytbart,-jevner profilringenej - - - seg ut på tetningshy.lsens_ ytterflate ,--og plastmaterialet•som flyter - bort derfra vandrer i stort sett radial retning til tetningshylsens innerside, hvor det danner omtrent tilsvarende ringformetevulster. Ved hjelp av disse løses formålet med oppfinnelsen, dvs. de danner en trykktett tetning også ved ikke-sirkelrunde rør eller rør med større forskjeller i ytterdiameter. at least largely coaxially with the sealing sleeve", it is exerted by the bias, i.e. by impact, by, pressure on the sealing sleeve, a pressure on the plastic material preferably in the area for these : profiles.- Since the plastic material is flowable, the profile ring - - - smooths itself out on the outer surface of the sealing sleeve, and the plastic material that flows away from there travels in a largely radial direction to the inner side of the sealing sleeve, where it forms approximately corresponding ring-shaped beads With the help of these, the purpose of the invention is solved, i.e. they form a pressure-tight seal also with non-circular pipes or pipes with larger differences in outer diameter.
Koplingens tetthet økes ytterligere dersom det er anordnetThe tightness of the coupling is further increased if it is provided
en ring mellom rørendene som flukter med hverandre. Denne ring,a ring between the pipe ends that are flush with each other. This ring,
somf.eks. består av egnet elastisk ettergivende materiale, utlikner i tillegg ujevnheter på rørenes endeflater. like for example. consists of suitable elastic yielding material, also compensates for unevenness on the end surfaces of the pipes.
For sentrering respektivt for å holde denne ring ved anbring-elsen av tetningenhyisen foretrekkes det at tetningshylsen omtrent på midten av dens indre omkrets er utformet med en nese som danner inngrep med en utsparing i ringens ytre omkrets. Ved hjelp av nesen blir ringen holdt sentrert ved fors<p>enningen. Materialet som nesen består av flyter derved i det minste delvis i radial retning utover, noe som imidlertid ikke forstyrrer. For centering or to hold this ring when the sealing sleeve is placed, it is preferred that the sealing sleeve approximately in the middle of its inner circumference is designed with a nose which forms an engagement with a recess in the outer circumference of the ring. With the help of the nose, the ring is kept centered at the bevel. The material of which the nose consists thereby flows at least partially in a radial direction outwards, which does not, however, interfere.
Ved en slik tetningshylse er det ikke nødvendig at det anvendes f.eks. plastmateriale i form av polyolefiner med en spesiell krystallinsk andel. I dette tilfelle kan det anvendes et vilkårlig annet flytbart materiale. Vesentlig er det alltid bare et profil-eringen av tetningshylsen foregår slik at det dannes resp. strøm-ningsledeflater for det flytbaré materiale som står under trykk, idet disse styrer dette materialet til dannelse av tetningsringer på ytterdiamtrene for rørene som skal forbindes med hverandre. With such a sealing sleeve, it is not necessary to use e.g. plastic material in the form of polyolefins with a special crystalline proportion. In this case, any other flowable material can be used. Essentially, it is always only a profiling of the sealing sleeve that takes place so that it forms resp. flow guiding surfaces for the flowable material that is under pressure, as these guide this material to form sealing rings on the outer diameters of the pipes that are to be connected to each other.
Oppfinnelsen vil bli nærmere forklart i den etterfølgende beskrivelse av utførelsesformer under henvisning til de medfølgende tegninger, hvori: Fig. 1 viser et langsgående snitt gjennom de vésentligste elementer i" rørkoplingen ifølge" oppfinnelsen , idet • venstre - side -.: . viser en tetningshylse, for rør som skal--^sammenf øyes-og som har tilnærmet samme diameter, mens .høyre side:^ visery~delvis-: oppskåret, en tetningshylse for rør med forskjellig ytterdiameter . The invention will be explained in more detail in the subsequent description of embodiments with reference to the accompanying drawings, in which: Fig. 1 shows a longitudinal section through the most essential elements in the "pipe coupling according to" the invention, with • left - side -.: . shows a sealing sleeve, for pipes which are to be joined together and which have approximately the same diameter, while the right side shows, partially cut, a sealing sleeve for pipes with different outer diameters.
Fig. 2 viser en detalj..Z i .fig..7l.Fig. 2 shows a detail..Z in .fig..7l.
Fig .r 3 - viser ■ et' langsgående"snitt: tilsvarende fig. 1 med .. ~ en ring mellom" delene" som skal' :forbindes med hverandre ^- <-.. Fig .r 3 - shows ■ a 'longitudinal' section: corresponding to Fig. 1 with .. ~ a ring between the 'parts' which are to be connected to each other ^- <-..
I fig.:" L-er-to ' rør -I-vog! 2y som skål" f orbindes med hverandre ;:; i e . og som har "samme- ytterdi-ameter," stukket inn i motstående ender åv- -v en tetningshylse 3. Tetningshylsen 3 har fortrinnsvis en innerdiameter som er like stor som ytterdiameteren for rørene 1 og 2, In fig.: "L-er-two ' tube -I-vog! 2y as bowl" f orbind with each other ;:; in e. and which have the "same outer diameter," inserted into the opposite ends of a sealing sleeve 3. The sealing sleeve 3 preferably has an inner diameter that is the same as the outer diameter of the tubes 1 and 2,
når rør med samme ytterdiametre skal sammenføyes. Spillerommet mellom rørenes ytre omkrets og tetningshylsens innerdiameter bør fortrinnsvis ikke være mer enn 1 mm. Rørkoplingens belastbarhet avhenger vesentlig av at spillerommet er så lite som mulig når det anvendes tetningshylser hvis inner- og ytterflater er glatt. when pipes with the same outer diameter are to be joined. The clearance between the outer circumference of the pipes and the inner diameter of the sealing sleeve should preferably not be more than 1 mm. The load capacity of the pipe connection depends significantly on the clearance being as small as possible when sealing sleeves are used whose inner and outer surfaces are smooth.
For å bringe rørenes 1 og 2 ender til å danne anlegg mot hverandre mest mulig ved midten av tetningshylsens aksiale lengde, er det på tetningshylsens 3 innerside utformet en radialt innadragende ringformet leppe 4. Denne ringformete leppe vil også kunne bestå av en enkel nippel e.l., og har bare som oppgave å danne et anslag ved innskyvningen av„anrørende i tetningshylsen. Den ringformete leppe 4 bør derved ha en så liten aksial bredde som mulig for at rørendene skal bli liggende så nær hverandre som mulig. In order to bring the ends of the tubes 1 and 2 into contact with each other as much as possible at the middle of the sealing sleeve's axial length, a radially indenting ring-shaped lip 4 is formed on the inside of the sealing sleeve 3. This ring-shaped lip could also consist of a simple nipple or the like, and only has the task of forming a stop when the contact is inserted into the sealing sleeve. The annular lip 4 should therefore have as small an axial width as possible so that the tube ends will lie as close to each other as possible.
Tetningshylsen 3 har i .tillegg til en glatt innerflate 27The sealing sleeve 3 also has a smooth inner surface 27
en glatt ytterflate som utstyrt med to koniske ytterflatepartier 5 og 6 som fortinnsvis har samme stigningsvinkel alfa i forhold til tetningshylsens 3 lengdeakse. Dersom det skal sammenføyes rør med forskjellig veggtykkelse eller med forskjellig ytterdiametre, kan det også vise seg å være hensiktsmessig å velge forskjellige stigningsvinkler alfa for de to koniske flatepartier 5 og 6. De koniske ytterflatepartier 5 og 6 stiger mot midten av tetningshylsen og skjærer hverandre i en midtre omkrets 7. Denne midtre omkrets 7 inntegnet i fig. 1 som tenkt snittlinje for de forlengete ytterflatepartier. Denne snittlinje mellom de to koniske ytterflatepartier 5 og 6 skal hensiktsmessig ligge aksialt i høyde med den ringformete leppe 4 og derved stedet hvor de to rørender 1 og 2 danner anlegg mot hverandre a smooth outer surface which is equipped with two conical outer surface parts 5 and 6 which preferably have the same pitch angle alpha in relation to the longitudinal axis of the sealing sleeve 3. If pipes with different wall thicknesses or with different outer diameters are to be joined, it may also prove to be appropriate to choose different rise angles alpha for the two conical surface parts 5 and 6. The conical outer surface parts 5 and 6 rise towards the middle of the sealing sleeve and intersect each other in a central circumference 7. This central circumference 7 drawn in fig. 1 as an imaginary section line for the extended outer surface parts. This section line between the two conical outer surface parts 5 and 6 should ideally lie axially at the height of the annular lip 4 and thereby the place where the two pipe ends 1 and 2 form contact with each other
Ved anvendelsen av elatsomere materialer for tetningshylsenWhen using elastomeric materials for the sealing sleeve
3 har stigningsvinkler^ på~mellom 3 og 10° for de koniske.ytterflatepartier 5 og 6 vist seg hensiktsmessig uavhengig av inner-diametrené for rørene som skal forbindes med -hverandreDe beste erfaringer ble alt i alt gjort med en: stigningsvinkel på 5°. Dette gjelder særlig når tetningshylsen' 3 består av et termoplast-.-' isk materiale<4>,:'nemlig "av. polyolefiner: med en krystalinsk andel- 3 have pitch angles of ~between 3 and 10° for the conical outer surface portions 5 and 6 proved appropriate regardless of the inner diameter of the pipes to be connected to each other. The best experiences were all in all made with a: pitch angle of 5°. This applies in particular when the sealing sleeve' 3 consists of a thermoplastic material<4>, namely "of. polyolefins: with a crystalline part-
på mindre énn 24 vektsprosent.jof less than 24 percent by weight.j
På tetningshylsens-3-koniske" ytterf latepartier: 5 og. 6: er det skjøvet inn flensringer henholdsvis -12 og"13: Flensringene^har fortrinnsvis koniske innerflater 14, 15, slik at stigningsvinkelen for denne konus fortrinnsvis tilsvarer stigningsvinkelen for det tilordnete, koniske ytterflateparti henholdsvis 5 og 6.Konus-vinkelen for flensringenes 12, 13 innerflater 14, 15 kan imidlertid være litt større enn stigningsvinkelen alfa for ytterflåtepaxtiene 5 og 6. Den aksiale lengde A tilsvarer fortrinnsvis halve inner-diameteren for det tilordnete rør som skal sammenføyes. De koniske ytterflatepartier 5, og 6 har en slik aksial lengde at de koniske innerflater 14, 15 på den tilordnete flensring i påskjøvet tilstand for tetningshylsen 3 ligger fullstendig på den koniske ytterflate 5 eller 6. On the sealing sleeve-3-conical" outer surface parts: 5 and. 6: there are pushed in flange rings -12 and"13 respectively: The flange rings^ preferably have conical inner surfaces 14, 15, so that the pitch angle for this cone preferably corresponds to the pitch angle for the assigned, conical outer surface portions 5 and 6 respectively. The cone angle for the inner surfaces 14, 15 of the flange rings 12, 13 may, however, be slightly greater than the pitch angle alpha for the outer flange portions 5 and 6. The axial length A preferably corresponds to half the inner diameter of the assigned pipe to be joined . The conical outer surface parts 5, and 6 have such an axial length that the conical inner surfaces 14, 15 of the assigned flange ring in the pushed-on state for the sealing sleeve 3 lie completely on the conical outer surface 5 or 6.
Innerflåtene 14 og 15 er rettlinjet og gjennomgående.utformet og tilsvarer i sine stigningsvinkler fortrinnsvis tetningshylsens ytterflatepartier 5 og 6. The inner rafts 14 and 15 are rectilinear and continuously designed and preferably correspond in their pitch angles to the outer surface parts 5 and 6 of the sealing sleeve.
Flensringenes 12 og 13 flenspartier 23 og 24 er utstyrt med boringer 25 og 26 som flukter med hverandre og som skruer 30 kan føres gjennom. På hver skrue kan det skrues en mutter 31.. The flange parts 23 and 24 of the flange rings 12 and 13 are equipped with bores 25 and 26 which are flush with each other and through which screws 30 can be passed. A nut 31 can be screwed onto each screw.
Ved tiltrekking' av mutrene 31 på skruene 30 kan flensringene 12 og 13 således forspennes med hverandre i aksial retning. By tightening the nuts 31 on the screws 30, the flange rings 12 and 13 can thus be biased against each other in the axial direction.
Dimensjonene på tetningshylsen 3 og flensringene 12 og 13The dimensions of the sealing sleeve 3 and the flange rings 12 and 13
er fortrinnsvis valgt slik at en avstand C mellom flensflater 17is preferably chosen so that a distance C between flange surfaces 17
og 18 som vender mot hverandre er lik eller dobbelt så stor som den aksiale bredde B et flensparti 23 eller 24, når flensringene bare er påskjøvet på tetningshylsens 3 koniske ytterflatepartier og ennå ikke forspent med hverandre.- - and 18 which face each other is equal to or twice as large as the axial width B of a flange portion 23 or 24, when the flange rings are only pushed onto the 3 conical outer surface portions of the sealing sleeve and not yet prestressed with each other.- -
Ved fremstillingen av den i fig. 1 viste<:>rørkopling anordnes tetningshylse 3. hvorpå det allerede er-anbrakt flensringene -12 og" 13. I tetningshylsen 3 stikkes rørene 1 og 2 som "skal. forbindes In the production of the one in fig. 1 showed<:>pipe connection, a sealing sleeve 3 is arranged, on which the flange rings -12 and" 13 have already been placed. In the sealing sleeve 3, the pipes 1 and 2 are inserted as "should. connect
med hverandre inn inntil anslaget-mot den ringformete"leppe 4. with each other in until the stop-against the ring-shaped "lip 4.
Deretter1 skrues mutrene =31 på^ skruene 30 , hvorved"f lénsringen 12 og 13 beveges i aksial? retning ■ mot hverandre .or Derved- utøves.-det på tetningshylsen-en stort' sett radial kraft mot rørendenes' !-.-og: •.>_• 2 ytre; omkretser.:'- Materialet": i" te.tningshylsenl 3. begynner-:.derved-, v-i-v* Next, the nuts =31 are screwed onto the screws 30, whereby the flange rings 12 and 13 are moved in an axial direction ■ towards each other. : •.>_• 2 outer; circumferences.:'- The material": in" sealing sleevel 3. begins-:.thereby-, v-i-v*
å f lytél-hen mot -rørene-.-1-og: 2 r: og., går ved ytterligere økende - trykk -, r- '-ved en ytterligere forspenning av flensringene 12 og 13 mot hverandre, til slutt fullstendig over i fast tilstand. Etter at materialet i tetningshylsen 3 er gått over i fast tilstand, foreligger - selve koplingen etter fjerning av flensringene 12 og 13, som fast rørkopling. to flow towards the pipes 1 and 2, by further increasing pressure, by a further biasing of the flange rings 12 and 13 towards each other, finally completely into solid state. After the material in the sealing sleeve 3 has transitioned into a solid state, the connection itself is present after removal of the flange rings 12 and 13, as a fixed pipe connection.
Den ringformete leppe 4 rager av hensyn til toleransene for ytterdiamtrene for rørene 1 og 2, bare litt, f.eks. 2/10 - 4/lo mm inn i den ringformete spalte, for å oppnå at rørenes endeflater danner fast anlegg mot hverandre og omsluttes av en tetningsvulst av plastmaterialet. The ring-shaped lip 4 protrudes for the tolerances of the outer diameters of the tubes 1 and 2, only slightly, e.g. 2/10 - 4/lo mm into the annular gap, to achieve that the end surfaces of the pipes form a firm contact with each other and are surrounded by a sealing bead of the plastic material.
Tetningshylsens profil, særlig i området ved det midtre omkrets 7 kan også utformes på annen måte enn den som er vist, f.eks. ved at det der dannes et fremspring med trekantet tverrsnitt. The profile of the sealing sleeve, particularly in the area of the central circumference 7, can also be designed in a different way than that shown, e.g. in that a projection with a triangular cross-section is formed there.
I det tilfelle kan også flensringenes innerflater 14 og 15 profiler-es tilsvarende. In that case, the inner surfaces 14 and 15 of the flange rings can also be profiled accordingly.
Det kan også holdbart forbindes rør med forskjellige vegg-tykkelser og/eller diamtre med hverandre under forutsetning av at de ovenfor anførte prinsipper bibeholdes. Pipes with different wall thicknesses and/or diameters can also be durably connected to each other, provided that the principles stated above are maintained.
Dersom man vil utlikne større differanser mellom ytterdiamtrene hos rørene som skal sammenføyes, utformes rørkoplingen i prinsippet slik som vist på høyre side i fig. 1 og i fig. 2. Liksom den på venstre side i fig. 1 viste tetningshylse har tetningshylsen i dette tilfelle en glatt innerflate 28. Tetningshylsens ytterflate 16 If you want to compensate for larger differences between the outer diameters of the pipes to be joined, the pipe connection is designed in principle as shown on the right side in fig. 1 and in fig. 2. Like the one on the left side in fig. 1 shown sealing sleeve, the sealing sleeve in this case has a smooth inner surface 28. The outer surface of the sealing sleeve 16
øker likeledes fra endene til en midtre omkrets 7 stort sett konisk. Ifølge oppfinnelsen er det imidlertid i ytterflatene 16 utformet trinn 17, som er vist forstørret i fig. 2 og som løper som en ring om tetningshylsens 3 akse 18. Fig. 2 viser dessuten en ringflens 13 som øker konisk mot den midtre omkrets 7. Denne ringflens skrues inn på det andre rør 1 sammen med en speilbilledlig lik annen . likewise increasing from the ends to a middle circumference 7 largely conical. According to the invention, however, steps 17 are formed in the outer surfaces 16, which are shown enlarged in fig. 2 and which runs like a ring around the axis 18 of the sealing sleeve 3. Fig. 2 also shows an annular flange 13 which increases conically towards the central circumference 7. This annular flange is screwed onto the second pipe 1 together with a mirror image similar to another.
flensring 12/hvorved det utøves, en - kraft i pilretningen . 20 , slik -r. som beskrevet i forbindelse med fig.i^- Over flensringenes -12,13konisitet utøves det derved en kraft: iJ"radial-'■•retning innad/dvs .-; ■■■■. i pilens 21 retning, på de fremspringende "deler- av-. trinnene:,ii7a :Til tross for et eventuelt spillerom mellom" tetningshylsens.:-.3 innerflaté" 28 og ytterf laten - f or rørene ' 1 rog/eller 2. danner, det seg som følge: V. av kraften! i-" pilretningen 21 eh-på tetningshylsens 3 innerf latein .-• 15 ringforméte . vulster. IQ . som liggérMetter; hverandre og dervéd::be>r virker en fullstendig, labyrintaktig tetning.av rørkoplingen1 også-når rørene ikke. er sirkelformete eller har forskjellige diametre innenfor visse grenser. flange ring 12/by which it is exerted, a - force in the direction of the arrow. 20 , such -r. as described in connection with fig.i^- Over the -12,13 conicity of the flange rings, a force is thereby exerted: iJ"radial-'■•direction inwards/ie .-; ■■■■. in the direction of the arrow 21, on the projecting " parts of-. the steps:,ii7a :Despite a possible clearance between the "sealing sleeve's.:-.3 inner surface" 28 and the outer surface - for the pipes ' 1 rog/or 2. forms, as a result: V. of the force! in-" the direction of the arrow 21 eh-on the inner surface of the sealing sleeve 3 .-• 15 ring-shaped . beads. IQ . which lie Satisfy each other and there::be>r acts a complete, labyrinth-like seal.of the pipe connection1 also-when the pipes are not. circular or have different diameters within certain limits.
Fig. 3 viser en ytterligere ring 9. i hvis ytre omkrets detFig. 3 shows a further ring 9. in whose outer circumference it
er utformet en rille 8. Profilen til denne rille motsvarer en nese 29 på innerflaten av den midtre omkrets 7 av tetningshylsen 3. Ved hjelp av nesen 29 blir ringen 9 holdt på plass inntil tetningshylsen er komprimert ved spenning av flensringen i pilretningen 20 for det høyre rør, respektivt i den motsatte retning, i pilretningen 20, for det venstre rør. Derved vandrer nesen 29 radialt utover, is designed a groove 8. The profile of this groove corresponds to a nose 29 on the inner surface of the central circumference 7 of the sealing sleeve 3. With the help of the nose 29, the ring 9 is held in place until the sealing sleeve is compressed by tensioning the flange ring in the direction of arrow 20 for the right pipe, respectively in the opposite direction, in the direction of arrow 20, for the left pipe. Thereby, the nose 29 moves radially outwards,
og ringen 9 bevirker på tross av uregelmessigheter i overflatene eller endeflatene av ringene 1 og 2- en god avtetning i spalten mellom de' to ringer. and the ring 9 causes, despite irregularities in the surfaces or end surfaces of the rings 1 and 2, a good seal in the gap between the two rings.
Den i fig. 3 viste utførelsesform med ringen 9 kan være utformet med eller uten de trinnformete profileringer 17, ifølge fig. 1 og 2. Det er heller ikke nødvendig at kraften i retningen 20 frembringes ved skruing av flensene i flensringene. Det vesent-lige er den konisk stigende ytterflate 16 på tetningshylsen 3 og den omtrent motsvarende konisitet hos flensringen 12, 13 som frem-bringer spenningen. I stedenfor med skruer kan kraften i pilretningen 20 og i den motsatte retning 21 også oppnås med andre egnete midler, f.eks. via stempel-sylinderanordninger eller andre drivanordninger. The one in fig. 3 embodiment with the ring 9 can be designed with or without the step-shaped profiles 17, according to fig. 1 and 2. It is also not necessary that the force in the direction 20 be produced by screwing the flanges in the flange rings. The essential thing is the conically rising outer surface 16 of the sealing sleeve 3 and the approximately corresponding conicity of the flange ring 12, 13 which produces the tension. Instead of screws, the force in the arrow direction 20 and in the opposite direction 21 can also be achieved by other suitable means, e.g. via piston-cylinder devices or other drive devices.
Materialet i tetningshylsen kan dessuten være et materiale som består av polyolefiner med en krystallinsk andel på høyst 24%, eller et vilkårlig annet materiale under forutsetning at det flyter under trykk og deretter stivner. The material in the sealing sleeve can also be a material consisting of polyolefins with a crystalline proportion of no more than 24%, or any other material provided that it flows under pressure and then hardens.
Claims (9)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2630814A DE2630814C3 (en) | 1976-07-08 | 1976-07-08 | Pipe connection for unprepared ends with a sealing sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO764174L true NO764174L (en) | 1978-01-10 |
Family
ID=5982537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO764174A NO764174L (en) | 1976-07-08 | 1976-12-08 | PIPE CONNECTION. |
Country Status (30)
| Country | Link |
|---|---|
| JP (1) | JPS536919A (en) |
| AR (1) | AR211718A1 (en) |
| AT (1) | AT354199B (en) |
| BE (1) | BE849973A (en) |
| BR (1) | BR7700774A (en) |
| CA (1) | CA1054646A (en) |
| CH (1) | CH623391A5 (en) |
| DD (1) | DD127760A5 (en) |
| DE (1) | DE2630814C3 (en) |
| DK (1) | DK552176A (en) |
| EG (1) | EG13212A (en) |
| ES (1) | ES225301Y (en) |
| FI (1) | FI763699A7 (en) |
| FR (1) | FR2357810A1 (en) |
| GB (1) | GB1520390A (en) |
| GR (1) | GR66490B (en) |
| HU (1) | HU176933B (en) |
| IL (1) | IL51206A (en) |
| IT (1) | IT1068629B (en) |
| LU (1) | LU76359A1 (en) |
| NL (1) | NL7614559A (en) |
| NO (1) | NO764174L (en) |
| NZ (1) | NZ183015A (en) |
| PL (1) | PL116002B1 (en) |
| PT (1) | PT65967B (en) |
| SE (1) | SE7613724L (en) |
| SU (1) | SU682155A3 (en) |
| TR (1) | TR19937A (en) |
| YU (1) | YU305076A (en) |
| ZA (1) | ZA767667B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5483113A (en) * | 1977-12-10 | 1979-07-03 | Suwakoopumundo Ag | Method of connecting hollow conduit by using packing sheath |
| NZ238986A (en) * | 1990-07-27 | 1997-01-29 | Taylor Kerr Couplings Ltd | Fliud-tight pipe coupling with slots in sealing sleeve that receive teeth of gripping ring |
| GB9611410D0 (en) | 1996-05-31 | 1996-08-07 | Taylor Kerr Couplings Ltd | Pipe coupling |
| FR2766552B1 (en) * | 1997-07-25 | 1999-09-03 | Pont A Mousson | DEVICE FOR ASSEMBLING TWO PIPE ELEMENTS AND ASSEMBLIES OF PIPE ELEMENTS INCLUDING APPLICATION |
| SE511768C2 (en) | 1998-02-23 | 1999-11-22 | Atlas Copco Rocktech Ab | Device and method for jointing of rods, and piston pump comprising the device |
| NO337989B1 (en) * | 2014-04-08 | 2016-07-18 | Odin Connect As | Method and construction for pipe connection |
| DE102014016468A1 (en) * | 2014-12-04 | 2016-06-09 | Seca Ag | Device for measuring a body length |
| CN110253303B (en) * | 2019-05-21 | 2021-10-08 | 中外建安装有限公司 | Processing and mounting process of common-plate flange air pipe |
| CN114542840B (en) * | 2022-02-23 | 2023-06-02 | 广东立丰管道科技有限公司 | Butt joint structural member used between ports of deformable plastic composite pressure-resistant pipe |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US654073A (en) * | 1899-10-25 | 1900-07-17 | Jacob M Olinger | Pipe-coupling. |
| FR1316605A (en) * | 1961-12-19 | 1963-02-01 | Tecalemit | Advanced waterproof fitting for smooth pipe without a collar |
| DE1915754U (en) * | 1965-02-12 | 1965-05-13 | Alfred Hild | PIPE WITH COUPLING OR TANK CONNECTING SLEEVE, IN PARTICULAR FOR HEATING TANK SYSTEMS. |
| GB1100101A (en) * | 1965-04-05 | 1968-01-24 | Inglis & Macinnes Ltd | Improved pipe coupling |
| US3408096A (en) * | 1966-06-20 | 1968-10-29 | Inglis & Macinnes Ltd | Pipe coupling |
| JPS5129716A (en) * | 1974-09-05 | 1976-03-13 | Yasuhiro Koyanagi | FUKUGOSOKETSUTOTSUGITENOKOZO OYOBI SEIZOHOHO |
-
1976
- 1976-07-08 DE DE2630814A patent/DE2630814C3/en not_active Expired
- 1976-12-07 SE SE7613724A patent/SE7613724L/en unknown
- 1976-12-08 NO NO764174A patent/NO764174L/en unknown
- 1976-12-09 DK DK552176A patent/DK552176A/en unknown
- 1976-12-09 AT AT911276A patent/AT354199B/en not_active IP Right Cessation
- 1976-12-10 LU LU76359A patent/LU76359A1/xx unknown
- 1976-12-13 YU YU03050/76A patent/YU305076A/en unknown
- 1976-12-13 GR GR52394A patent/GR66490B/el unknown
- 1976-12-15 GB GB52236/76A patent/GB1520390A/en not_active Expired
- 1976-12-15 PT PT65967A patent/PT65967B/en unknown
- 1976-12-20 DD DD7600196475A patent/DD127760A5/en unknown
- 1976-12-21 HU HU76CE1113A patent/HU176933B/en unknown
- 1976-12-23 IT IT83504/76A patent/IT1068629B/en active
- 1976-12-23 ES ES1976225301U patent/ES225301Y/en not_active Expired
- 1976-12-23 FI FI763699A patent/FI763699A7/fi not_active Application Discontinuation
- 1976-12-27 JP JP16079676A patent/JPS536919A/en active Pending
- 1976-12-28 ZA ZA767667A patent/ZA767667B/en unknown
- 1976-12-29 TR TR19937A patent/TR19937A/en unknown
- 1976-12-29 PL PL1976194800A patent/PL116002B1/en unknown
- 1976-12-29 BE BE173732A patent/BE849973A/en unknown
- 1976-12-29 NL NL7614559A patent/NL7614559A/en not_active Application Discontinuation
- 1976-12-30 SU SU762434153A patent/SU682155A3/en active
- 1976-12-30 AR AR266067A patent/AR211718A1/en active
- 1976-12-30 CA CA268913A patent/CA1054646A/en not_active Expired
-
1977
- 1977-01-04 IL IL51206A patent/IL51206A/en unknown
- 1977-01-06 NZ NZ183015A patent/NZ183015A/en unknown
- 1977-01-22 EG EG38/77A patent/EG13212A/en active
- 1977-01-26 FR FR7702795A patent/FR2357810A1/en active Granted
- 1977-02-08 BR BR7700774A patent/BR7700774A/en unknown
- 1977-07-04 CH CH821677A patent/CH623391A5/en not_active IP Right Cessation
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