DK161034B - PIPE OR CONTAINER WITH INTERIOR INSULATION - Google Patents
PIPE OR CONTAINER WITH INTERIOR INSULATION Download PDFInfo
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- DK161034B DK161034B DK541884A DK541884A DK161034B DK 161034 B DK161034 B DK 161034B DK 541884 A DK541884 A DK 541884A DK 541884 A DK541884 A DK 541884A DK 161034 B DK161034 B DK 161034B
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- wall
- profile
- insulating
- container
- rings
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/12—Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating material; Arrangements specially adapted for supporting insulated bodies
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
- F16L59/147—Arrangements for the insulation of pipes or pipe systems the insulation being located inwardly of the outer surface of the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
- Centrifugal Separators (AREA)
- Thermally Insulated Containers For Foods (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Glass Compositions (AREA)
Abstract
Description
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iin
Opfindelsen angår en rørledning eller beholder med en indvendig isolering af isoleringsformlegemer, fortrinsvis af et keramisk materiale, hvilke isoleringsformlegemer i bestemte afstande 5 i rør- eller beholdervæggens aksiale retning fastholdes på indersiden af denne ved hjælp af metalprofil ringe, der hver til understøtning af isoleringsformlegemerne i aksial retning har en radialt i retningen udad mod rør- eller beholdervæggen forløbende flig og ved dennes radialt inderste ende har mindst én i det væsentlige aksialt 10 forløbende flig, der indgriber i en til dennes tværsnit svarende udsparing i isoleringsformlegemerne.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a pipeline or container having an internal insulation of insulating moldings, preferably of a ceramic material, which insulating moldings at certain distances 5 in the axial direction of the pipe or container wall are retained on the inside thereof by means of metal profile rings each supporting the insulating moldings. axial direction has a tab extending radially outwardly toward the tube or container wall and at its radially inner end has at least one substantially axially extending tab engaging a recess corresponding to its cross-section in the insulating mold bodies.
Ved en isolering af rørledninger eller beholdere stilles det krav til isolationen, at den skal kunne holde varmen borte fra rørlednings- eller beholdervæggen, der skal beskyttes. Skønt isola-15 ti onsmaterialet i sig selv sædvanligvis er i besiddelse af den nødvendige isolationsevne, optræder der konstruktionsmæssige problemer, der hidtil ikke har kunnet løses på tilfredsstillende måde.Insulation of pipelines or containers requires the insulation to be able to keep the heat away from the pipeline or container wall to be protected. Although the insulating material itself is usually in possession of the required insulating ability, there are structural problems which have not hitherto been satisfactorily solved.
Den på indersiden af den rørledningen eller beholderen anbragte isolering skal være udformet og monteret på en sådan måde, 20 at varmebroer, der skyldes fastgørelsen af isoleringen og spalter i denne, såvidt muligt udelukkes. Endvidere skal isoleringen være indrettet på en sådan måde, at væggen, der skal beskyttes, ikke kan udsættes for skadelig påvirkning ved, at den isolerende virkning går tabt som følge af en i spalten mellem væggen og isoleringen optræ-25 dende fri konvektion. Der skal imidlertid ikke blot sørges for, at rørledningen eller beholderen ikke udsættes for en utilladelig overhedning af vægdele, men også at varmetab som følge af utilstrækkelig isolation forhindres, idet ethvert varmetab reducerer virkningsgraden.The insulation located on the inside of the pipeline or container shall be designed and mounted in such a way that heat bridges resulting from the attachment of the insulation and slits therein are excluded as far as possible. Furthermore, the insulation must be arranged in such a way that the wall to be protected cannot be adversely affected by the insulating effect being lost due to a free convection occurring in the gap between the wall and the insulation. However, care must be taken not only to ensure that the pipeline or container is not subjected to unauthorized superheating of wall parts, but also that heat loss due to insufficient insulation is prevented as any heat loss reduces the efficiency.
30 For at imødegå de nævnte ulemper holdes isolationsmaterialet ved de kendte konstruktioner ved hjælp af bolte i berøring med væggen, der skal beskyttes, for at reducere størrelsen af varmebro-erne. Til eliminering af konvektionsstrømme anvendes V-formede plader, der opdeler isoleringsrummet i aksi al retning. Ved hjælp af 35 en særlig udformning af isoleringsformlegemerne og mellemled, der forbinder disse, forsøges det foruden at give formi egernerne den nødvendige stabile fastholdelse også at spærre radiale åbninger i form af spalter.In order to address the disadvantages mentioned, the insulating material of the known structures is kept in contact with the walls to be protected by means of bolts to reduce the size of the heating bridges. To eliminate convection currents, V-shaped plates are used which divide the insulation space in the axial direction. By means of a special design of the insulating mold bodies and intermediate joints connecting them, in addition to giving the molding the squirrels the necessary stable retention, it is also attempted to block radial openings in the form of slots.
Også disse kendte foranstaltninger er behæftede med en rækkeThese well-known measures also have a number of implications
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2 0 af ulemper. Anvendelsen af bolte til fastholdelse af isolationen mod væggen, der skal beskyttes, resulterer i et stort antal varmebroer og udelukker i de fleste tilfælde anvendelsen af isoleringsformlegemer. Konvektionsspærreorganerne i form af V-formede plader skal 5 fastgøres ved svejsning til den væg, der skal beskyttes. Dette medfører, at de, da de strækker sig over hele den isolerede strækning, kommer til at danne varmebroer på samme måde som boltene. Da spidserne af de V-formede plader kun med vanskelighed kan udfyldes med isoleringsmateriale, og dette er meget vanskeligt at kontrol!e-10 re, forringes isoleringsværdien, og der dannes mel!emkonvektions- strømme. Svejseforbindelsen mellem konvektionsringe og bærende strukturer er endvidere vanskelige at fremstille som kontrollerbare forbindelser og kan derfor ikke opfylde de betingelser, som er nødvendige ved nukleare konstruktioner. En afgørende ulempe ved de 15 kendte isoleringer, ved hvilke der anvendes isoleringsformlegemer, er endvidere, at disse isoleringsformlegemer ikke er i stand til at følge varmeudvidelserne af den væg af rørledningen eller beholderen, der skal beskyttes, hvilket medfører, at isoleringsformlegemernes høje isoleringsværdi bliver nyttesløs på grund af det spillerum, der 20 så uundgåeligt dannes mellem væggen og isoleringen.20 of disadvantages. The use of bolts for retaining the insulation against the wall to be protected results in a large number of heat bridges and in most cases precludes the use of insulating moldings. The convection locking means in the form of V-shaped plates must be secured by welding to the wall to be protected. As a result, as they extend over the entire stretch of insulation, they will form heat bridges in the same way as the bolts. Since the tips of the V-shaped plates can only be filled with insulation material with difficulty, and this is very difficult to control, the insulation value deteriorates and flour convection currents are formed. Furthermore, the weld connection between convection rings and supporting structures is difficult to prepare as controllable compounds and therefore cannot meet the conditions required by nuclear structures. A major disadvantage of the 15 known insulations, which use insulating bodies, is that these insulating bodies are not able to follow the thermal expansion of the wall of the pipe or container to be protected, which means that the high insulation value of the insulating bodies becomes useless. because of the leeway that 20 inevitably forms between the wall and the insulation.
Fra USA patentskriftet nr. 1.888.039 kendes en cylindrisk beholderdel med en på indersiden af beholdervæggen anbragt isolering, der består af isoleringsformlegemer, som i beholderdelens længderetning fastholdes til beholdervæggen i aksi al afstand fra 25 hinanden ved hjælp af profilringe af metal. Hver profilring har en i radial retning mod beholdervæggen forløbende flig, med hvilken profilringen er fastsvejst til beholdervæggen. Endvidere er hver profil ring ved sin radialt indadvendende side udformet med aksialt i hver sin retning rettede flige, der griber ind i til deres tværsnit 30 passende udsparinger i isoleringsformlegemerne. Ved denne kendte cylindriske beholderdel er især sammensvejsningen af profilringene og beholdervæggen en ulempe, fordi svejsearbejdet ved profilringene skal foretages, efterhånden som isoleringsformlegemerne anbringes, idet der først skal anbringes en række isolationslegemer i beholde-35 ren, før den næste derover beliggende profilring kan indsættes og fastsvejses til beholdervæggen. Dette betyder, at svejsearbejdet skal udføres ganske nær allerede anbragte isoleringsformlegemer, der dermed er stærkt udsatte for beskadigelser. En yderligere ulempe er, at svejsningen kan medføre, at strukturen af den cylindriske 3US Patent No. 1,888,039 discloses a cylindrical container portion having an insulation located on the inside of the container wall consisting of insulating mold members which are held longitudinally of the container portion to the container wall at axial distance from each other by means of metal profile rings. Each profile ring has a tab extending radially toward the container wall, with which the profile ring is welded to the container wall. Furthermore, each profile ring at its radially inwardly facing side is formed with axially directed tabs in each direction, which engage in recesses suitable for their cross-section 30 in the insulating mold bodies. In this known cylindrical container part, in particular, the welding of the profile rings and the container wall is a disadvantage because the welding work at the profile rings has to be done as the insulating mold bodies are placed, a number of insulating bodies must first be placed in the container before the next profile ring located above it can be inserted and are welded to the container wall. This means that the welding work must be carried out quite close to already insulated mold bodies, which are thus highly susceptible to damage. A further disadvantage is that the welding can cause the structure of the cylindrical 3
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beholderdel undergår en negativ ændring ved svejsestederne, især dersom det drejer sig om en beholderdel af et materiale af høj kvalitet. Derudover er hele monteringen af isoleringen besværlig, fordi der skiftevis skal indsættes isoleringsformlegemer og profil -5 ringe, der skal fastsvejses. En yderligere alvorlig ulempe er, at profilringene danner varmebroer, idet de er sammensvejst med beholdervæggen, således at isoleringsformlegemernes isolerende virkning næsten helt ophæves i områderne ved profil ringene. Dette medfører desuden den ulempe, at den cylindriske beholdervæg opvarmes uensar-10 tet, idet opvarmningen vil være betydeligt kraftigere i områderne ved de med beholdervæggen sammensvejste profilringe end i de områder, hvor isoleringslegemernes isolererende virkning er størst, nemlig mellem profil ringene.container part undergoes a negative change at the welding points, especially if it is a container part of a high quality material. In addition, the entire installation of the insulation is difficult because alternately insulating mold bodies and profile -5 rings must be inserted to be welded. A further serious disadvantage is that the profile rings form heat bridges, since they are welded together with the container wall, so that the insulating effect of the insulating bodies is almost completely abolished in the areas of the profile rings. This also causes the disadvantage that the cylindrical container wall is heated unevenly, since the heating will be considerably more powerful in the areas of the profile rings welded to the container wall than in the areas where the insulating effect of the insulating bodies is greatest, namely between the profile rings.
Formålet med opfindelsen er at tilvejebringe en af isole-15 ringsformlegemer bestående isolering, der kan anbringes på indersiden af en rørlednings- eller beholdervæg af metal, og med bestemte mellemrum i rørledningens eller beholderens aksi ale retning fastholdes til væggen, uden at de foran beskrevne ulemper optræder, således at der tilvejebringes en isolering, ved hvilken det med 20 enkle tekniske midler både er forhindret, at der dannes varmebroer, og at der ved optrædende varmeudvidelser opstår konvektion mellem væggen og isoleringen.The object of the invention is to provide an insulating molding body which can be placed on the inside of a metal pipe or container wall and is fixed to the wall at certain intervals in the axial direction of the pipe or container without the disadvantages described above. occurs so that an insulation is provided in which, by 20 simple technical means, both the formation of heat bridges is prevented and in the case of heat expansion occurring, convection occurs between the wall and the insulation.
Denne opgave løses ifølge opfindelsen ved, at profilringene alene fastholdes i aksi al retning ved hjælp af et antal hol deele-25 menter, der er anbragte på indersiden af rør- eller beholdervæggen og er således indrettede, at de tillader radiale bevægelser af profilringene som følge af varmeudvidelser.This task is solved according to the invention by only holding the profile rings in axial direction by means of a number of hollow elements arranged on the inside of the pipe or container wall and arranged to allow radial movement of the profile rings as a result. of heat expansions.
En på denne måde udformet cylindrisk rørledning eller beholder har den fordel, at isoleringen selv ved forskellige varme-30 udvidelser af rørlednings- eller beholdervæggen og profilringene fastholdes pålideligt til indersiden af rørlednings- eller beholdervæggen. På denne måde undgås dannelse af konvektionsspalter mellem væggen, der skal isoleres, og isoleringen.A cylindrical conduit or container thus designed has the advantage that even at various heat expansions of the conduit or vessel wall and profile rings the insulation is reliably retained to the inside of the conduit or vessel wall. In this way, the formation of convection gaps between the wall to be insulated and the insulation is avoided.
Da de i isoleringen indlejrede profil ringe imidlertid er 35 mindre stærkt beskyttede mod opvarmning end rørlednings- eller beholdervæggen undergår de på grund af deres højere temperatur ved en opvarmning en større varmeudvidelse end rørlednings- eller beholdervæggen. Ved en opvarmning vil profil ri ngene således ikke blot følge rørlednings- eller beholdervæggen, der udvider sig, menHowever, since the profile rings embedded in the insulation are 35 less strongly protected against heating than the pipeline or container wall, they undergo a greater thermal expansion than the pipeline or container wall due to their heating. Thus, during heating, the profile rings will not only follow the pipeline or container wall that expands, but
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4 udvide sig før denne. Da profilringene med deres aksiale flige indgriber i isoleringsformlegemerne, vil profilringene ved deres radiale udvidelse medbringe isoleringsformlegemerne og trykke disse kraftigere mod indersiden af rørlednings- eller beholdervæggen, der 5 skal isoleres end i kold tilstand. Herved forhindres dannelsen af en konvektionsspalte mellem rørlednings- eller beholdervæggen og isoleringen.4 expand before this one. As the profile rings with their axial tabs engage the insulating mold bodies, the profile rings, by their radial expansion, will bring the insulating mold bodies and push them more strongly against the inside of the pipe or container wall to be insulated than in the cold state. This prevents the formation of a convection gap between the pipeline or container wall and the insulation.
Ved en videreudformning af opfindelsen består holdeelementerne af parvise holdekonsoller, der ligger an mod hver sin side af 10 en profil rings radiale flig, og mellem hvilke de enkelte profil ringe med udsparinger, der svarer til holdekonsollernes tværsnit, kan indføres. Herved opnås en særlig enkel montering af profil ringene i rørledningen eller beholderen.In a further embodiment of the invention, the holding elements consist of paired holding brackets, which abut each side of a radial tab of a profile, and between which the individual profile rings with recesses corresponding to the cross-section of the holding brackets can be inserted. This results in a particularly simple mounting of the profile rings in the pipeline or container.
Ifølge opfindelsen kan hver profilrings radiale flig strække 15 sig ud til indersiden af rørlednings- eller beholdervæggen for således at forhindre en konvektionsstrømning mellem rørlednings-eller beholdervæggen og den af isoleringsformlegemerne bestående isolering.According to the invention, the radial flap of each profile ring 15 extends to the inside of the pipeline or container wall so as to prevent a convection flow between the pipeline or container wall and the insulation of the insulating mold bodies.
På tegningen er forskellige udførelseseksempler på opfin-20 del sen anskuel iggjort, og her viser: fig. 1 et længdesnit gennem en rørledning eller beholder med indvendig isolering ifølge opfindelsen, fig. 2 et perspektivisk billede, delvis i snit af en del af den med en isolering af isoleringsform-25 legemer forsynede rørlednings- eller beholder væg, fig. 3 et til fig. 2 svarende billede, hvor den øverste halvdel viser det monterede isoleringsformlegemes tilstand før opvarmningen, og den nederste 30 halvdel viser tilstanden efter opvarmning, fig. 4 et aksi alt snit gennem de mod hinanden stødende dele af ved siden af hinanden anbragte isoleringsformlegemer under anvendelse af et mellemled, 35 fig. 5 et til fig. 4 svarende billede, ved hvilket ved siden af hinanden anbragte isoleringsformlegemer trappeagtigt overlapper hinanden, fig. 6 i større målestok et tværsnit efter linien VI-VI i fig. 1, og 5BRIEF DESCRIPTION OF THE DRAWINGS Various embodiments of the invention are illustrated in the drawings, and here: FIG. 1 is a longitudinal section through a pipe or container with internal insulation according to the invention; FIG. 2 is a perspective view, partly in section, of a portion of the pipe or container wall provided with an insulation of insulating molding bodies; FIG. 3 is a view of FIG. 2 is a similar view, with the upper half showing the state of the insulated mold body prior to heating, and the lower half showing the state after heating; FIG. Fig. 4 is an axial section through the adjacent insulating portions of insulating mold bodies using an intermediate joint; 5 is a view of FIG. Figure 4 is a similar view, in which side-by-side insulating molding bodies overlap stairly; 6 is an enlarged cross-sectional view along line VI-VI of FIG. 1, and 5
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fig. 7 et delsnit efter linien VII-VII i fig. 6.FIG. 7 is a sectional view taken along line VII-VII of FIG. 6th
Ved det i fig. 1 viste udførelseseksempel har en cylindrisk rørledning eller beholder en væg 1 af metal med en isolering 2 på sin inderside la. I det indre af rørledningen eller beholderen 5 strømmer f.eks. et gasformet medium med en temperatur på 900°C, medens der ved ydersiden af rørledningen eller beholderen i et af et ydre hus 3 dannet ringrum strømmer et medium med en temperatur på 250°C. Dette udvendige hus 3 er på sin yderside forsynet med en isolering 4.In the embodiment shown in FIG. 1, a cylindrical pipeline or container has a metal wall 1 with an insulation 2 on its inside 1a. In the interior of the pipeline or container 5, e.g. a gaseous medium having a temperature of 900 ° C, while a medium having a temperature of 250 ° C flows at the outside of the pipeline or container into an annulus formed by an outer housing 3. This exterior housing 3 is provided on its outside with an insulation 4.
10 Som det ses i fig. 2, består væggen l's isolering 2 af iso leringsformlegemer 2a, der ved hjælp af profil ringe 5 fastholdes til væggen 1. Disse profil ringe 5 er anbragte i bestemte afstande fra hinanden som vist i fig. 1. En konkret udførelsesform for profil-ringeene 5 er vist i fig. 2.10 As seen in FIG. 2, the insulation 2 of the wall 1 consists of insulating mold members 2a, which are secured to the wall by means of profile rings 5. These profile rings 5 are arranged at certain distances from one another as shown in FIG. 1. A concrete embodiment of the profile rings 5 is shown in FIG. 2nd
15 Som det ses i fig. 2, har hver metal profil ring 5 en radialt i retningen ud mod væggen 1 forløbende flig 5a, hvis radialt yderste ende ved det i fig. 2 viste udførelseseksempel når helt ud til inderfladen la af væggen 1. Ved det i fig. 2 viste udførelseseksempel er der på den radialt inderste ende af denne flig 5a udformet to 20 i det væsentlige aksialt forløbende flige 5b. Hver af disse aksiale flige 5b rager ind i en til fligens tværsnit svarende udsparing 2b i det pågældende isoleringslegeme 2a, og isoleringslegemerne 2a understøttes i væggen l's aksiale retning på profilringen 5's radiale flig 5a.15 As seen in FIG. 2, each metal profile ring 5 has a radially extending tab 5a extending to the wall 1, the radially outermost end of which is shown in FIG. 2 illustrates fully to the inner surface 1a of the wall 1. In the embodiment shown in FIG. 2, on the radially inner end of this tab 5a, two substantially axially extending tabs 5b are formed. Each of these axial tabs 5b projects into a recess 2b corresponding to the cross section of the respective insulating body 2a, and the insulating bodies 2a are supported in the axial direction of the wall 1 on the radial tab 5a of the profile ring 5.
25 Ved en i fig. 3 vist anden udførelsesform for profil ri ngene 5 har hver profilring 5b ved den radialt inderste ende af sin radiale flig 5a kun en enkelt aksial flig 5b. Endvidere ender den radiale flig 5a i afstand fra indersiden la af væggen 1. Det er dog ved hjælp af streg-priklinier vist, at den radiale flig 5a også kan 30 strække sig helt hen til indersiden la af væggen 1.25 In one embodiment of FIG. 3 shows another embodiment of the profile rings 5, each profile ring 5b at the radially inner end of its radial tab 5a has only a single axial tab 5b. Furthermore, the radial tab 5a ends at a distance from the inside la of the wall 1. However, it is shown by means of dashed dot lines that the radial tab 5a can also extend all the way to the inside la of the wall 1.
Funktionen af den til en sikker fastholdelse af isoleringsformlegemet 2a tjenende profil ring forklares herefter nærmere under henvisning til fig. 3, hvor den øverste halvdel af fig. 3 viser isoleringslegemet i en monteret tilstand, hvor samtlige dele har 35 rumtemperatur. Det ses, at isoleringslegemet 2a ligger an mod oversiden af profilringen 5's radiale flig 5a, og at profilringen 5 med sin aksiale flig 5b griber ind i udsparingen 2b i isolerings-formlegemet 2a. I denne tilstand kan der dannes en spalte mellem profil ri ngen 5's aksiale flig 5b og isoleringsformlegemerne 2a vedThe function of the profile ring which serves to securely hold the insulating mold body 2a is then explained in more detail with reference to FIG. 3, wherein the upper half of FIG. 3 shows the insulating body in a mounted state where all parts have 35 room temperature. It is seen that the insulating body 2a abuts the upper side of the radial tab 5a of the profile ring 5 and that the profile ring 5 with its axial tab 5b engages in the recess 2b in the insulating mold body 2a. In this state, a gap can be formed between the profile of the axis 5 of the axial tab 5b and the insulating mold bodies 2a at
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OISLAND
den radialt yderste side af den aksiale flig 5b. Det er selv ved en forlænget radial flig 5a ikke nødvendigt, at den radialt yderste endeflade af denne flig 5a ligger an mod indersiden la af væggen 1.the radially outermost side of the axial tab 5b. Even with an extended radial tab 5a, it is not necessary that the radially outermost end surface of this tab 5a abut the inside 1a of the wall 1.
Ved en opvarmning af væggen fra denne kolde tilstand fås den 5 i nederste halvdel af fig. 3 indtegnede temperaturprofil. Denne temperaturprofil viser, at der ved den mod det varme medium vendende inderside af isoleringsformlegemerne 2a hersker en temperatur t^. På grund af den isolerende virkning af isoleringsformlegemerne 2a opvarmes væggen 1 kun til temperaturen t .By heating the wall from this cold state, the 5 in the lower half of FIG. 3 plotted temperature profile. This temperature profile shows that at the inside of the hot medium facing the insulating mold bodies 2a, a temperature t Due to the insulating effect of the insulating mold bodies 2a, the wall 1 is only heated to the temperature t.
α 10 Trods denne betydeligt lavere temperatur t udvider væggen 1 α sig på grund af sin i forhold til den kolde tilstand højere temperatur, således som det vil ses ved en sammenligning mellem dens stilling i den øverste og den nederste halvdel af fig. 3. Denne udvidelse af væggen 1 forøges yderligere, dersom væggen 1 ikke blot 15 udsættes for en højere temperatur, men også for et højere tryk.α 10 Despite this considerably lower temperature t, wall 1 α expands due to its higher temperature relative to the cold state, as will be seen by a comparison of its position in the upper and lower half of FIG. 3. This expansion of the wall 1 is further increased if the wall 1 is exposed not only to a higher temperature but also to a higher pressure.
Skønt profil ri ngen 5 er indlejret i isoleringsformlegemerne 2a, får den - som temperaturprofilen viser - en temperatur tr, der er højere end temperaturen t,, idet kun en del af hvert isolerings-formlegeme isolerer profil ri ngen 5 mod varmen og således ikke yder 20 fuld isoleringsvirkning for profilringen. Profilringen 5 vil derfor som følge af temperaturpåvirkningen udvide sig kraftigere end væggen 1. Dette medfører, at den radiale afstand mellem væggen l's inderside la og den radialt yderste flade af profilringen 5's aksiale flig 5b formindskes under opvarmningen. Da profilringen 5's aksiale 25 flig 5b griber ind i udsparingerne 2b i isoleringsformlegemerne 2a, vil den ved forøgelsen af sin diameter som følge af varmeudvidelsen medbringe disse isoleringsformlegemer 2a. Isoleringsformlegemerne 2a vil, på trods af at der i kold tilstand fandtes en lille spalte mellem den aksiale flig 5a og isoleringsformlegemerne 2a, blive 30 trykket mod indersiden la af væggen 1, uanset om profilringen 5's radiale flig 5a når helt hen til indersiden la af væggen eller ej.Although profile 5 is embedded in insulating mold bodies 2a, as the temperature profile shows, it receives a temperature tr higher than temperature t, since only a portion of each insulating mold body insulates profile 5 against heat and thus does not provide 20 full insulating effect for the profile ring. Therefore, as a result of the temperature influence, the profile ring 5 will expand more strongly than the wall 1. This causes the radial distance between the interior 1a of the wall 1 and the radially outer surface of the axial flap 5b of the profile ring 5 to decrease. As the axial tab 5b of the profile ring 5 engages in the recesses 2b in the insulating mold bodies 2a, it will increase these insulating mold bodies 2a by increasing its diameter as a result of the heat expansion. The insulating bodies 2a, although in a cold state, a small gap existed between the axial tab 5a and the insulating molds 2a will be pressed against the inside la of the wall 1, regardless of whether the radial tab 5a of the profile ring 5 extends to the inside la of the wall. or not.
Ved denne medbringning af isoleringsformlegemerne 2a ved en varmeudvidelse af profilringen 5 sikres, at der mellem indersiden la af væggen 1 og den mod denne vendende side af i soleringsformele-35 gemerne 2a ikke opstår spalter, der ville kunne tillade konvektion og dermed en utilladelig opvarmning af væggen 1. I tilfælde af at profilringen 5's radiale flig 5a, således som vist med streg-prik-linier i fig. 3, når helt hen til kappen l's inderside la, yder denne radiale flig 5a af profil ri ngen 5 en yderligere tætnende 7By this bringing the insulating mold bodies 2a into a heat expansion of the profile ring 5, it is ensured that no gaps are formed between the inside 1a of the wall 1 and the side facing the side of the soldering formula 2a which would allow convection and thus an inadmissible heating of the the wall 1. In the case of the radial tab 5a of the profile ring 5, as shown by dash-dotted lines in FIG. 3, as far as the inside la of the sheath 1, this radial tab 5a of the profile ring 5 provides a further sealing 7
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virkning.effect.
I fig. 3 ses også, at der ved den foran beskrevne medbring-ning af isoleringsformlegemerne 2a ved en varmeudvidelse af profilringen 5 set i omkredsretningen kan opstå spalter mellem isole-5 ringsformlegemerne 2a, således at de varme gasser vil have adgang til væggen 1. For at forhindre dette, kan de ved siden af hinanden beliggende isoleringsformlegemer 2a som vist ved udførelseseksemplet i fig. 4 være forbundne med hinanden ved hjælp af et mellemled 6.In FIG. 3, it is also seen that, in the circumferential arrangement of the insulating molding bodies 2a, in a heat expansion of the profile ring 5 seen in the circumferential direction, gaps between the insulating molding bodies 2a may occur, so that the hot gases will have access to the wall 1. In order to prevent this, the insulating mold bodies 2a located adjacent to each other as shown in the embodiment of FIG. 4 be connected to each other by means of an intermediary 6.
Disse mellemled 6, der strækker sig over hele den aksi ale længde af 10 isoleringsformlegemerne 2a, danner en tilstrækkelig aflukning af de set i omkredsretningen uundgåelige spalter, og endvidere er det muligt ved monteringen af isoleringsformlegemerne 2a at udfylde de pågældende mellemrum med fibermåtter.These intermediate joints 6, which extend over the entire axial length of the insulating molding bodies 2a, form a sufficient closure of the circumferential slots seen in the circumferential direction, and furthermore, when fitting the insulating molding bodies 2a, it is possible to fill the relevant spaces with fiber mats.
Fig. 5 viser yderligere en mulighed til forhindring af 15 spalter i omkredsretningen. Ved denne udførelsesform overlapper de ved siden af hinanden beliggende isoleringsformlegemer 2a hinanden ved hjælp af en trappeagtig udformning, ved hvilken der ganske vist stadig kan dannes i omkredsretningen fordelte spalter, men hvor de enkelte spalter er adskilte fra hinanden, idet isoleringsformlege-20 merne 2a ligger an mod hinanden i radial retning, således at der ikke opstår gennemgående spalter. Den på denne måde opnåede labyrintvirkning er tilstrækkelig til at beskytte væggen 1 mod opvarmning.FIG. 5 further shows a possibility of preventing 15 slots in the circumferential direction. In this embodiment, the adjacent insulating molding bodies 2a overlap by a stair-like configuration, in which perpendicular slots can still be formed, but the individual slots are separated from each other, the insulating moldings 2a being opposite to each other in a radial direction so that no through slots occur. The maze effect thus obtained is sufficient to protect the wall 1 from heating.
Ved større længder af væggen 1, der skal forsynes med den 25 foran beskrevne isolering 2, kan det være nødvendigt at fiksere i det mindste en del af profilringene 5 på væggen 1 i aksial retning.At greater lengths of the wall 1 to be provided with the insulation 2 described above, it may be necessary to fix at least part of the profile rings 5 on the wall 1 in the axial direction.
Da disse profil ringe 5 ikke er forbundne og især ikke er sammensvejste med væggen 1, kan de på enkel måde monteres sammen med isoleringsformlegemerne 2a. Ved de foran beskrevne udførelsesek-30 sempler giver de imidlertid ingen formsluttende fiksering af isoleringsformlegemerne 2a til væggen.Since these profile rings 5 are not connected and in particular are not welded to the wall 1, they can be easily mounted together with the insulating mold bodies 2a. However, in the embodiments described above, they provide no form-fitting fixation of the insulating mold bodies 2a to the wall.
Fig. 6 og 7 viser derimod en udførelsesform, ved hvilken profil ri ngene 5 er fikserede til væggen l's inderflade la. Hertil tjener parvis anbragte holdekonsoller 7a, 7b. Disse holdekonsoller 35 7 a, 7b er vi nkel formede og er hver med det ene vi nkel ben fastsvejst til indersiden la af væggen 1. Hvert par holdekonsoller ligger med deres andet vinkelben an mod hver sin side af profilringen 5's radiale flig 5a, således at profil ri ngen 5 fastholdes til væggen 1 i aksial retning uden at være sammensvejst med kappen 1. HoldetappeneFIG. 6 and 7, on the other hand, show an embodiment in which the profile rings 5 are fixed to the inner surface 1a of the wall 1. For this, paired brackets 7a, 7b are provided in pairs. These retaining brackets 35 7 a, 7 b are each shaped and are each welded to the inside of the wall with one single leg 1. Each pair of retaining brackets lies with their other angular legs against each side of the radial tab 5a of the profile ring 5, so that profile ring 5 is retained to the wall 1 in axial direction without being welded to the sheath 1. The holding pins
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8 7a kan som enkeltdele på kontrollerbar måde fastsvejses til indersiden la af kappen 1. Det ses i fig. 6, at de er parvis anbragte, men lidt forskudt i omkredsretningen i forhold til hinanden, således at en med tilsvarende udsparinger 5c forsynet profil ring 5 i aksi al 5 retning kan føres forbi de øverste holdekonsoller 7a og lægges på de nederste holdekonsoller 7b og derefter ved drejning i Omkredsretningen fikseres i begge aksiale retninger. Trods fikseringen i aksial retning hindrer holdekonsollerne 7a og 7b ikke profilringene 5's radiale bevægelighed, således at disse kan følge de foran 10 beskrevne varmeudvidelser under medbringning af isoleringsformlegemerne 2a.8a can be welded as individual parts in a controllable manner to the inside 1a of the sheath 1. It can be seen in FIG. 6, that they are arranged in pairs, but slightly offset in the circumferential direction relative to each other, so that a profile ring 5 provided with the corresponding recesses 5c can be passed in the axial direction 5 over the upper holding brackets 7a and placed on the lower holding brackets 7b and then when turning in the circumferential direction, fix in both axial directions. Despite the fixation in the axial direction, the retaining brackets 7a and 7b do not hinder the radial movement of the profile rings 5, so that they can follow the heat expansions described above 10 while carrying the insulating mold bodies 2a.
-15 20 25 30 35-15 20 25 30 35
Claims (3)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3341869 | 1983-11-19 | ||
DE19833341869 DE3341869A1 (en) | 1983-11-19 | 1983-11-19 | CYLINDRICAL METAL COAT |
Publications (4)
Publication Number | Publication Date |
---|---|
DK541884D0 DK541884D0 (en) | 1984-11-14 |
DK541884A DK541884A (en) | 1985-05-20 |
DK161034B true DK161034B (en) | 1991-05-21 |
DK161034C DK161034C (en) | 1991-10-28 |
Family
ID=6214742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK541884A DK161034C (en) | 1983-11-19 | 1984-11-14 | PIPE OR CONTAINER WITH INTERIOR INSULATION |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0142762B1 (en) |
AT (1) | ATE40455T1 (en) |
DE (1) | DE3341869A1 (en) |
DK (1) | DK161034C (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3623597C1 (en) * | 1986-07-12 | 1987-07-09 | Didier Werke Ag | Reactor |
US4941647A (en) * | 1989-09-12 | 1990-07-17 | Union Carbide Corporation | Protective lining for aluminum refining vessel |
JP3767637B2 (en) * | 1995-08-21 | 2006-04-19 | 旭硝子株式会社 | High temperature melt conduit support structure |
DE10223606B4 (en) * | 2002-05-27 | 2006-04-13 | Schott Ag | Apparatus for receiving or guiding a glass melt and method of adjusting the heat balance of the apparatus |
DE10237362B4 (en) * | 2002-08-12 | 2004-07-29 | Solvis Gmbh & Co. Kg | Storage container with a heat insulation layer and a cladding layer with an opening and a closure device |
PL2302278T3 (en) | 2009-09-28 | 2015-07-31 | G H Isolierung Gmbh | Holder for an external construction on a down pipe |
CN102235825A (en) * | 2011-05-20 | 2011-11-09 | 山东柯信新材料有限公司 | Fireproof brick for lining of metallurgical furnace |
ES2565222B1 (en) * | 2014-09-30 | 2017-01-18 | Abengoa Solar New Technologies, S.A. | High temperature fluid transport system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1888039A (en) * | 1930-07-28 | 1932-11-15 | Universal Oil Prod Co | Interlocking lining for vessels or receptacles |
DD143086A1 (en) * | 1979-04-21 | 1980-07-30 | Ernst Wandke | FIXING FOR HIGH-CLASS CLADDING |
-
1983
- 1983-11-19 DE DE19833341869 patent/DE3341869A1/en active Granted
-
1984
- 1984-11-03 EP EP84113265A patent/EP0142762B1/en not_active Expired
- 1984-11-03 AT AT84113265T patent/ATE40455T1/en not_active IP Right Cessation
- 1984-11-14 DK DK541884A patent/DK161034C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK541884D0 (en) | 1984-11-14 |
DK541884A (en) | 1985-05-20 |
DK161034C (en) | 1991-10-28 |
EP0142762A3 (en) | 1985-11-13 |
DE3341869A1 (en) | 1985-05-30 |
EP0142762B1 (en) | 1989-01-25 |
ATE40455T1 (en) | 1989-02-15 |
EP0142762A2 (en) | 1985-05-29 |
DE3341869C2 (en) | 1990-07-26 |
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