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
Links
- 238000004140 cleaning Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000010763 heavy fuel oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
- C06B45/18—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component
- C06B45/20—Compositions 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
- C06B45/22—Compositions 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
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0083—Treatment of solid structures, e.g. for coating or impregnating with a modifier
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
- C06B45/18—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/02—Cartridges, i.e. cases with charge and missile
- F42B5/18—Caseless ammunition; Cartridges having combustible cases
- F42B5/192—Cartridge cases characterised by the material of the casing wall
- F42B5/196—Coatings
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)
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)
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 |
-
1968
- 1968-09-04 DE DE1796118A patent/DE1796118C3/en not_active Expired
-
1969
- 1969-07-02 BR BR212030/69A patent/BR6912030D0/en unknown
- 1969-08-06 YU YU2036/69A patent/YU34107B/en unknown
- 1969-08-25 ES ES370815A patent/ES370815A1/en not_active Expired
- 1969-08-26 DK DK456969A patent/DK135678C/en active
- 1969-08-29 CH CH1317469A patent/CH500053A/en not_active IP Right Cessation
- 1969-09-01 JP JP44069042A patent/JPS4942531B1/ja active Pending
- 1969-09-02 CA CA060962A patent/CA936697A/en not_active Expired
- 1969-09-02 NO NO3510/69A patent/NO122518B/no unknown
- 1969-09-02 IL IL32928A patent/IL32928A/en unknown
- 1969-09-03 NL NL6913424A patent/NL6913424A/xx not_active Application Discontinuation
- 1969-09-03 BE BE738397D patent/BE738397A/xx unknown
- 1969-09-03 AT AT838769A patent/AT290362B/en not_active IP Right Cessation
- 1969-09-03 FR FR6930084A patent/FR2017366A1/fr not_active Withdrawn
- 1969-09-03 GB GB43698/69A patent/GB1277247A/en not_active Expired
- 1969-09-04 PL PL1969135672A patent/PL80202B1/pl unknown
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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