NO122518B - - Google Patents

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Publication number
NO122518B
NO122518B NO3510/69A NO351069A NO122518B NO 122518 B NO122518 B NO 122518B NO 3510/69 A NO3510/69 A NO 3510/69A NO 351069 A NO351069 A NO 351069A NO 122518 B NO122518 B NO 122518B
Authority
NO
Norway
Prior art keywords
ribs
heat exchangers
longitudinal
cross wall
flat
Prior art date
Application number
NO3510/69A
Other languages
Norwegian (no)
Inventor
H Gawlick
H Ratz
H Brachert
Original Assignee
Dynamit Nobel Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dynamit Nobel Ag filed Critical Dynamit Nobel Ag
Publication of NO122518B publication Critical patent/NO122518B/no

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Classifications

    • CCHEMISTRY; METALLURGY
    • C06EXPLOSIVES; MATCHES
    • C06BEXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/18Compositions or products which are defined by structure or arrangement of component of product comprising a coated component
    • C06B45/20Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an organic explosive or an organic thermic component
    • C06B45/22Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an organic explosive or an organic thermic component the coating containing an organic compound
    • CCHEMISTRY; METALLURGY
    • C06EXPLOSIVES; MATCHES
    • C06BEXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B21/00Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
    • C06B21/0083Treatment of solid structures, e.g. for coating or impregnating with a modifier
    • CCHEMISTRY; METALLURGY
    • C06EXPLOSIVES; MATCHES
    • C06BEXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/18Compositions or products which are defined by structure or arrangement of component of product comprising a coated component
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02Cartridges, i.e. cases with charge and missile
    • F42B5/18Caseless ammunition; Cartridges having combustible cases
    • F42B5/192Cartridge cases characterised by the material of the casing wall
    • F42B5/196Coatings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Paints Or Removers (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

Anordning ved rørformede varmeutvekslere med tangensiale langsgående ribber. Device for tubular heat exchangers with tangential longitudinal ribs.

Foreliggende oppfinnelse angår anord-ninger ved rørformede varmeutvekslere forsynt med langsgående tangensiale ribber. Sådanne varmeutvekslere kan særlig anvendes anordnet i horisontale lag i økono-misører som tjener til å forvarme fødevann for kjeler. The present invention relates to devices for tubular heat exchangers provided with longitudinal tangential ribs. Such heat exchangers can particularly be used arranged in horizontal layers in economizers that serve to preheat feed water for boilers.

I således innrettede økonomisører er rengjøring hittil blitt utført ved skrapning eller ved blåsning med komprimert luft eller damp. Slike rengjøringsmetoder er tilfredsstillende når den gass som går gjennom økonomisøren skriver seg fra forbren-ning av kull, men er ikke tilstrekkelig når man som brensel bruker tunge brenselsoljer eller andre brenselsstoffer innehold-ende skadelige stoffer, som f. eks. svartlut fra cellulosefabrikasjonen. I slike tilfelle er det for å få en hensiktsmessig rengjør-ing nødvendig å bruke vaskning eller frem-gangsmåter omfattende en granulering. In economizers designed in this way, cleaning has so far been carried out by scraping or by blowing with compressed air or steam. Such cleaning methods are satisfactory when the gas that passes through the economizer comes from the combustion of coal, but is not sufficient when heavy fuel oils or other fuels containing harmful substances are used as fuel, such as e.g. black liquor from cellulose manufacture. In such cases, in order to obtain an appropriate cleaning, it is necessary to use washing or methods including granulation.

Når man utfører rengjøringen på sist-nevnte måter av varmeutvekslere med tangensialt rettede langsgående ribber, vil imidlertid vann eller korn av forurens-ninger oppsamles i de øvre renner som dannes av overflaten på rørets øvre del og to ribber og holdes tilbake i disse. However, when cleaning is carried out in the last-mentioned ways of heat exchangers with tangentially directed longitudinal ribs, water or grains of contamination will be collected in the upper channels formed by the surface of the upper part of the tube and two ribs and retained in them.

Når tunge brenselsoljer brukes som When heavy fuel oils are used as

brensel vil vaskevannet anrikes på svo-velsyre og kan forårsake korrosjon når det holdes tilbake i kontakt med rørets overflate og ribbene. Brukes svartlut som brensel kan vaskevannet holde tilbake fuel, the wash water will be enriched in sulfuric acid and can cause corrosion when it is held back in contact with the pipe's surface and ribs. If black liquor is used as fuel, the washing water can hold back

soda, hva der kan gi årsak til forskjellige ulemper. Faste partikler som faller ned i soda, which can cause various disadvantages. Solid particles falling into

rennene som dannes av ribbene går tapt og forårsaker dessuten en betydelig og uønsket økning av rørenes vekt. the grooves formed by the ribs are lost and also cause a significant and undesirable increase in the weight of the pipes.

Ved hjelp av anordningen ifølge oppfinnelsen avhjelpes de nevnte ulemper. Denne anordning er karakterisert ved at nevnte ribbers øvre endekanter er forbundet med hverandre ved en plan eller hovedsakelig plan eller vinkelformet tverrvegg så at ribbene sammen med denne tverrvegg inneslutter et lukket rom. With the aid of the device according to the invention, the aforementioned disadvantages are remedied. This device is characterized in that the upper end edges of said ribs are connected to each other by a planar or mainly planar or angled transverse wall so that the ribs together with this transverse wall enclose a closed space.

I det følgende beskrives som eksempler og under henvisning til vedføyede tegnin-ger to utførelsesformer for oppfinnelsen. In the following, two embodiments of the invention are described as examples and with reference to the attached drawings.

På tegningen viser fig. 1 et tverrsnitt In the drawing, fig. 1 a cross section

gjennom et rørelement ifølge oppfinnelsen. through a pipe element according to the invention.

Fig. 2 er et lengdesnitt etter linjen II— Fig. 2 is a longitudinal section along the line II—

II på fig. 1. II on fig. 1.

Fig. 3 viser i tverrsnitt en modifika-sjon av den i fig. 1 viste utførelsesform . Fig. 4 er et vertikalt lengdesnitt etter Fig. 3 shows in cross-section a modification of the one in fig. 1 shown embodiment. Fig. 4 is a vertical longitudinal section after

linjen IV—IV på fig. 3. the line IV—IV in fig. 3.

Fig. 5 er et horisontalt lengdesnitt etter Fig. 5 is a horizontal longitudinal section after

linjen V—V på fig. 3. the line V—V in fig. 3.

Anordningen ifølge oppfinnelsen be-står i de på tegningene viste utførelsesfor-mer av rørformede elementer 10 forsynt med tangensialt rettede langsgående ribber 11 og eventuelt med tversgående ribber 12, samt med en vegg 14 som forbinder ytter-kantene av to langsgående ribber 11 slik at der dannes et lukket tomrom 15. Ved anordningens ender er dette tomrom lukket av en vegg 16. The device according to the invention consists in the embodiments shown in the drawings of tubular elements 10 provided with tangentially directed longitudinal ribs 11 and possibly with transverse ribs 12, as well as with a wall 14 which connects the outer edges of two longitudinal ribs 11 so that there a closed void 15 is formed. At the device's ends, this void is closed by a wall 16.

Veggen 14 kan være plan som vist på fig. 1, eller ha vinkelformet tverrsnitt som et tak 17, således som vist på fig. 3. Her-ved lettes avløp av væsker og faste partikler. The wall 14 can be flat as shown in fig. 1, or have an angular cross-section like a roof 17, as shown in fig. 3. This facilitates the drainage of liquids and solid particles.

Veggene 14 og 17 kan legges på ribbene, men fortrinnsvis er de støpt i et stykke med elementet 10—11. The walls 14 and 17 can be placed on the ribs, but preferably they are cast in one piece with the element 10-11.

De rørformede elementer kan mon-teres på varmeutveksleres rør 13 ved å skyves inn over rørene. Det er hensiktsmessig å bruke relativt korte elementer som etter hverandre skyves inn på hvert rør, hvor-ved elementene fortrinnsvis er forsynt med fremspring og uttagninger slik at et element griper inn i det følgende element (se fig. 4). The tubular elements can be mounted on the heat exchanger's tubes 13 by being pushed in over the tubes. It is appropriate to use relatively short elements that are pushed one after the other onto each pipe, whereby the elements are preferably provided with protrusions and recesses so that one element engages the following element (see fig. 4).

De elementer som er bestemt til å lig-ge ved enden av et rør er fortrinnsvis forsynt med en relativt tykk flens (se fig. 5). The elements which are intended to lie at the end of a pipe are preferably provided with a relatively thick flange (see fig. 5).

Oppfinnelsen kan også anvendes på The invention can also be applied to

varmeutveksleres rør som er fast forbundet, eller i et stykke med nevnte ribber. heat exchanger tubes that are firmly connected, or in one piece with said ribs.

Claims (1)

Anordning ved rørformede varmeutvekslere som er forsynt med vertikale ribber som er rettet tangensialt til røret i dets lengderetning, karakterisert ved at ribbe-nes øvre endekanter er forbundet med hverandre ved en plan eller hovedsakelig plan eller vinkelformet tverrvegg (14, 17) så at ribbene sammen med denne tverrvegg inneslutter et lukket romDevice for tubular heat exchangers which are provided with vertical ribs which are directed tangentially to the tube in its longitudinal direction, characterized in that the upper end edges of the ribs are connected to each other by a flat or mainly flat or angular cross wall (14, 17) so that the ribs together with this cross wall encloses a closed room
NO3510/69A 1968-09-04 1969-09-02 NO122518B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1796118A DE1796118C3 (en) 1968-09-04 1968-09-04 Caseless propellant charge compact and process for its manufacture

Publications (1)

Publication Number Publication Date
NO122518B true NO122518B (en) 1971-07-05

Family

ID=5708368

Family Applications (1)

Application Number Title Priority Date Filing Date
NO3510/69A NO122518B (en) 1968-09-04 1969-09-02

Country Status (16)

Country Link
JP (1) JPS4942531B1 (en)
AT (1) AT290362B (en)
BE (1) BE738397A (en)
BR (1) BR6912030D0 (en)
CA (1) CA936697A (en)
CH (1) CH500053A (en)
DE (1) DE1796118C3 (en)
DK (1) DK135678C (en)
ES (1) ES370815A1 (en)
FR (1) FR2017366A1 (en)
GB (1) GB1277247A (en)
IL (1) IL32928A (en)
NL (1) NL6913424A (en)
NO (1) NO122518B (en)
PL (1) PL80202B1 (en)
YU (1) YU34107B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2709037A1 (en) * 1977-03-02 1978-09-07 Dynamit Nobel Ag FIRM-WEATHER-PROOF DRIVE KIT FOR BOLT DRIVE CARTRIDGES
DE2710451C2 (en) * 1977-03-10 1990-11-15 Rheinmetall GmbH, 4000 Düsseldorf Surface protection coating for ammunition with a combustible case or caseless ammunition
FR2444251A1 (en) * 1978-12-15 1980-07-11 Poudres & Explosifs Ste Nale COMBUSTIBLE OBJECTS, AND IN PARTICULAR COMBUSTIBLE SOCKETS, RESISTANT TO HEAT
DE3006475C2 (en) * 1980-02-21 1986-10-30 Société Anonyme PRB, Brüssel / Bruxelles Fuel for base-bleed gas generators, process for its production and for the production of a propellant from this fuel
FR2590360B1 (en) * 1985-11-19 1989-06-30 Poudres & Explosifs Ste Nale MIXED LOADS FOR AMMUNITION WITH SOCKET COMPRISING FRAGMENTABLE SPHERICAL LOADS
WO2001019759A1 (en) * 1999-09-15 2001-03-22 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Propellant charge powder having low temperature dependency

Also Published As

Publication number Publication date
BR6912030D0 (en) 1973-03-20
DE1796118A1 (en) 1972-02-17
CA936697A (en) 1973-11-13
DE1796118B2 (en) 1977-12-08
DK135678C (en) 1977-11-14
CH500053A (en) 1970-12-15
AT290362B (en) 1971-05-25
JPS4942531B1 (en) 1974-11-15
BE738397A (en) 1970-02-16
YU34107B (en) 1978-12-31
GB1277247A (en) 1972-06-07
NL6913424A (en) 1970-03-06
IL32928A (en) 1973-07-30
FR2017366A1 (en) 1970-05-22
YU203669A (en) 1978-06-30
ES370815A1 (en) 1971-07-01
PL80202B1 (en) 1975-08-30
DE1796118C3 (en) 1978-08-17
IL32928A0 (en) 1970-12-24
DK135678B (en) 1977-06-06

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