DE2250912A1 - FILLS FOR PROCESS ENGINEERING APPARATUS - Google Patents
FILLS FOR PROCESS ENGINEERING APPARATUSInfo
- Publication number
- DE2250912A1 DE2250912A1 DE2250912A DE2250912A DE2250912A1 DE 2250912 A1 DE2250912 A1 DE 2250912A1 DE 2250912 A DE2250912 A DE 2250912A DE 2250912 A DE2250912 A DE 2250912A DE 2250912 A1 DE2250912 A1 DE 2250912A1
- Authority
- DE
- Germany
- Prior art keywords
- walls
- packing
- body according
- flow channel
- formations
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/08—Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
- F28F25/087—Vertical or inclined sheets; Supports or spacers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/32—Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/32206—Flat sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/3221—Corrugated sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/32213—Plurality of essentially parallel sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/32224—Sheets characterised by the orientation of the sheet
- B01J2219/32227—Vertical orientation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/32237—Sheets comprising apertures or perforations
- B01J2219/32241—Louvres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32203—Sheets
- B01J2219/32248—Sheets comprising areas that are raised or sunken from the plane of the sheet
- B01J2219/32251—Dimples, bossages, protrusions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
- B01J2219/322—Basic shape of the elements
- B01J2219/32296—Honeycombs
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Description
Dipl.-lng. Wolfgang K. Rauh
51 AACHENDipl.-Ing. Wolfgang K. Rauh
51 AACHEN
Krefelder Straße 35 · Telefon 36452Krefelder Strasse 35 · Telephone 36452
Priorität:Priority:
Die Erfindung betrifft einen. Füllkörper für verfahrenstechnische Apparat· zum Stoff· und/oder Wärmeaustausch zwischen gasförmigen und flüssigen medien» bestehend aus zu einem wabenförmigen Block zusammengefügten verformten Lamellen au· Kunststoffplatten bzw. - folien, die parallele Strömungskanäle mit winklig zueinander angeordneten Wandungen und beliebigen geometrischen Querschnittsformen bilden.The invention relates to a. Packing for process engineering Apparatus · for substance · and / or heat exchange between gaseous and liquid media »consisting of a honeycomb Block of joined deformed lamellas Plastic plates or foils, the parallel flow channels with walls arranged at an angle to one another and any geometric cross-sectional shapes.
Werden Füllkörper, die beispielsweise im Querschnitt dreieckige Strömungskanäle haben mit einer Flüssigkeit berieselt, die da· eine Ausfcauschmedium bildet, so zeigt es sich, dass ein Teil der Flüssigkeit sich in die von den Ulandungen der Strömungskanäle gebildeten Zwickel hineinzieht. Wegen der relativ hohen Kohäsionskräfte verbleibt diese Flüssigkeitsmenge, die auch als"Zivickelflüssigkeit" bezeichnet wird, im Zwickel und nimifct wegen des geringen Verhältnisses von Oberfläche zu Volumen nur zu einem unwesentlichen Teil am UJärme-If filling bodies, for example with flow channels that are triangular in cross-section, are sprinkled with a liquid, which forms an exchange medium, it turns out that some of the liquid is drawn into the gussets formed by the Ulandungen of the flow channels. Because of the This amount of liquid, which is also referred to as "Zivickeliquid", remains in the relatively high cohesive forces Gusset and nimifct because of the low ratio of surface area to volume only to an insignificant part of the UJärme-
409819/0013409819/0013
unu Stof!austausch teil, tiei einer Uiolzohl von Strönungskanälen füllt auf dies· weis« ein grosser Anteil dar Flüssigkeit als Austeuschmedlum aus, wodurch sich auch Schwierigkeiten bei der Voraueberechnung der Auatauachluietung ergeben·unu Stof! exchange part, tiei a Uiolzohl of Strönungskanälen fills this · setting "a large proportion is liquid as Austeuschmedlum from, which also difficulties arise in the Voraueberechnung the Auatauachluietung ·
Der Erfindung liegt daher die Aufgebe zugrunde« die Füllkörpsr so zu gestalten, dass sie die bildung van Iwickelflüeslgkeit weitgehend vurmeiden und einen grösetmaglichen üäre)e~ und/oder Stoffauetausch zwischen den aie durchziehenden Hedien gestatten·The invention is therefore based on the task “the filling bodies to be designed in such a way that the formation of Iwickelflüesligkeit Avoid to a large extent and use the greatest possible ure) e ~ and / or exchange of material between the hedges passing through allow·
Die Lrfindung besteht derin, daaa mindeatena ain Teil dar wandungen Jedes Strömunijsksnale lumindeet an den la Kinkel zu benachbarten wandungen befindliche Rändern aua der ttandungeebene herwortretende Auau/Ölbüngen aufweistt deren Uariaa» form eine Horizontalkomponente besitzt. Hierdurch wird erreicht» dass die in den Zwickeln befindliche Flüssigkeit untur Bildung eines Fl-issigkeitsfi!r«ies zur üandunnnmitte hin abgeleitet wird und eine im Vurhältnis zum Volumen g^Össere Oberfläche erhalt·The Lrfindung consists derin, daaa mindeatena ain part represents Each walls Strömunijsksnale lumindeet to the la Kinkel has to adjacent walls located edges aua the ttandungeebene herwortretende Auau / Ölbüngen t whose Uariaa "shape having a horizontal component. This ensures that the liquid in the gussets is diverted towards the center of the area to form a liquid film and is given a surface area larger in proportion to the volume.
Worteilhaft sind Uie Aua-nülbunion aus dom Lewolleneerketoff nu3gefor.nto Noppen, aiobei ee wie r>ich gezeigt hat, zweck nassig ist, wenn dia A>.istuülbunr{«}n in Hichtung zur Uandunga»itte echrecj nach abwärts gurichtetu liintjliche Moppen sind.Uie Aua-nülbunion from dom Lewolleneerketoff nu3gefor.nto knobs, aiobei ee, as r> I have shown, is purposely wet when the A> .istuülbunr { «} n in the direction of the Uandunga» itte echrecj downward guriertu left mops .
Üa die ^andunrjun djr 3trÖ<nunrt;kenäle beidseitig beströmt merden, ist es v;o£ tnilhaft, uono dio Ausu/ölbunnon im liiochsel aus derÜa die ^ andunrjun djr 3trÖ <nunrt; kenal flows on both sides merden, is it v; o £ sensible, uono dio Ausu / olbunnon in the liiochsel from the
409819/0013409819/0013
•inen oder anderen tilendungteben* hervorragen·• inen or other tilendteben * stand out ·
Einen verbesserten üärae- und/oder Stoffaustausch erhält «an ferner, wenn in der uiandungsfläche mindestens eines Teiles der Wandungen jedes Strünungakanals waagerechte länglich· Ausfornungen vorgesehen^ sind« Die waagerechten fluefor«ungen bewirken einerseits in dar Grenzschicht des gaaförwigen Mediues einen plötzlichen übergang von laminarer in turbulent· Strömung mit liilrbelbildung und andererseits wird auch daa flüssige (Radium turbulent gemacht und nimmt in erhöhten (lesee em Ui&rme- und/oder Stoffauatausch teil·An improved üärae- and / or material exchange receives «On further, if there is at least one in the area Part of the walls of each Strünunga channel is horizontal elongated recesses are provided. The horizontal flue formations effect on the one hand in the boundary layer of the gaaförwigen Mediues a sudden transition from laminar to turbulent · flow with turbulence and on the other hand becomes also daa liquid (radium made turbulent and increases in increased (read em Ui & rme- and / or material exchange part ·
Eine «eitere Verbesserung des Warne- und/oder Stoffaustauschee durch Beeinflussung der Strumungsverheitnieee wird dadurch erzielt» daas dlο Oberfläche «lnüeitsne eines Teiles der Wandungen jedee StrÖeungakanal· «It AuftreQwerkstoff beflockt ist·A "further improvement of the warning and / or substance exchange" by influencing the flow rate, this is achieved » the dlο surface “runs along part of the walls every flow channel · «it is flocked on the surface ·
In der Zeichnung ist die Erfindung belepieleweiee näher erläutert und zwar zeigernIn the drawing, the invention is explained in more detail belepieleweiee namely point
rig* 1 eine perspektivische Teilansicht eines FUllkörpere ge* der Erfindung 'rig * 1 a perspective partial view of a filling body ge * the invention '
Fig. 2 eine teilweise Abwicklung eines StrÖMungskanels dee Füllkörpere nach Fig. 1 .2 shows a partial development of a flow channel dee Packing elements according to FIG. 1.
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Fig· 4 eine teilweise acheroetieche Dreufeicht auf einen FOIlkttrper 4 shows a partially acheroetic three-level view of a FOIlkttrper
Fig. 6 eine Draufsicht auf eine abgehandelte Struktur eines Füllkörpere und6 is a plan view of a discussed structure of a Random packings and
körpers.body.
Fig· 1 zeigt einen Füllkörper 1 geattss der Erfindung, der aus einer Vielzahl paralleler glatter Kunetatoffolien 2 und decu gegenläufiger mäandarförmig oder zickxa6kfSmig verforejler Kunststoffolien 3 gebildet 1st und einen Grabenblock ait einer Ulelzahl im Querschnitt dreieckiger Strflmungakanlle 4 bildet» «le diea Fig. 4 schematisch zeigt·Fig. 1 shows a packing 1 according to the invention, which consists of a multitude of parallel smooth Kunetatoffolien 2 and decu meandering in opposite directions or zigxa6kfSmig verforejler Plastic film 3 is formed and a trench block with a Ulel number in the cross-section of triangular flow channels 4 forms » «Le diea Fig. 4 shows schematically ·
Fig· 1 und ine.baaondere die Fig. 2 und 3 zeigen» »eieen die lotrechten (lan düngen 5 zualndeet der verforaten Kunststoff öl lan 3 en lhron die Ecken öder Zwickel 6 bildenden Hindern lotrechte Reihen von echrfig nach abwärts zur taendungsaitte gerichteten Aueforeungen 7 in Fora länglicher Noppen eof· Dieae kOnnen abwechselnd positiv und negativ oder euch euf der einen Seite positiv und euf der anderen Seite negativ euageforat eeln· Uiehtiy let, daee diese Noppen der im Zvlckel enhaftenden Flüssigkeit eine eeegerechte Ableltkoaponiinte erteilen.1 and 2 and 3 show the same vertical (lan fertilize 5 at the end of the deforated plastic oil lan 3 perpendicular to the corners or gussets 6 forming obstacles Rows from echrfig downwards to the center of the day Fora of elongated knobs eof thieae can alternately positive and negative or you on one side positive and negative on the other side euageforat eeln Uichtiy let, because these knobs are stuck in the cell Give the liquid an ee-appropriate ablation rate.
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nit Hilfe dieser Ausfonaung 7 wird es ermöglicht, die sich in den Zwickeln 6 ansammelnde Flüssigkeit» die sog. Zwickelflüssigkeit,β (Fig· 5), zur Uendungsmitte hin abzuleiten·With the help of this Ausfonaung 7 it is made possible that Liquid accumulating in the gussets 6 »the so-called gusset liquid, β (Fig. 5), to be derived towards the middle of the end
Fig« S zeigt einan solchen Zwickel 6· Ee ist unschwer zu erkennen, daee die freie Oberfläche der Zwickelflüssigkeit im Verhältnis zu ihrem Volumen relativ goring ist, 90 dass relativ groeee filengen an ffiediumaflUssigkeit a« Austauschvorgang praktisch nicht teilnehmen* Durch die Aueformungen 7 wird die Zwickelflüssigkeit aus den Zwickeln 6 herausgezogen·Fig. 5 shows such a gusset 6, and it is easy to see that the free surface of the gusset liquid is relatively large in relation to its volume, 90 that relatively large volumes of fluid practically do not participate in an exchange process Gusset liquid pulled out of gussets 6
Die an den wandungen der Strömungekanäle fliessende Flüssig- · keit strömt im wesentlichen laminar, so dass lediglich die Grenzschicht an der Oberfläche der Flüssigkeit am Stoff« und/ oder Wärmeaustausch teilnimmt«The liquid flowing along the walls of the flow channels flow is essentially laminar, so that only the Boundary layer on the surface of the liquid "participates in the substance and / or heat exchange"
iüie die Fig« 2 und 3 zeigen, tfind die wandungen 5 mit waagerechten länglichen Ausformungen 9 versehen» die wie Fig· 3 zeigt, abwechselnd negativ und positiv ausgebildet sind· Durch diese Ausformungen 9 wird die laminare Strömung der an der Wandung fliessenden Flüssigkeit unterbrochen, abgerissen und turbulent gemacht*As shown in FIGS. 2 and 3, the walls 5 are horizontal elongated formations 9 are provided like FIG. 3 shows, are alternately formed negative and positive · Through these formations 9, the laminar flow of the Liquid flowing on the wall interrupted, torn off and made turbulent *
Zugleich wird auch dia gasförmige Mediumaströmung in ihrem Weg gestört und in Wirbel vorsetzt· Dabei wird ein innigerAt the same time, the gaseous medium flow in your Path disturbed and advances in a vortex · This becomes an intimate
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Durch die Ausformungen 7 und 9» die für eich oder in Kombination zumindest an einen Teil dar Wandungen S der Strömungskanale 3 vorgesehen aind, wird eine betrachtliche leietungserhöhung das FUllkörpere erzielt» ohne dass ee ainee gegenüber den bekannten Ausführungen erhöhten Aufwandes bedarf.Due to the formations 7 and 9 »those for calibration or in combination at least on part of the walls S of the flow channels 3, a considerable increase in power is provided the filling body achieved »without the ee ainee opposite the known designs require increased effort.
Vorteilhaft sind die tuen dun tjcoborflttchen auch mit einem geeigneten Werkstoff baflookt» wodurch «eitere Strömungaetörungen und -ver»irbelungon antatehen.The tuen dun tjcoborflttchen are also advantageous with a suitable one Material baflookt »whereby« purulent flow disturbances and deformation.
01t FlQ* 6 und 7 zeigen weitere typlache «Bebenstruktüren, die für dan erfindungsgenässen Füllkörper geeignet aind· Infolge der Verwendung dar Auaformurtgen 7 und 9 aind hinsichtlich der Formgebung dar Strukturen keine Grenzen mehr geeetzt.01t FlQ * 6 and 7 show further type flat "trembling structure doors" that suitable for then inventive packing aind · As a result the use of the Auaformurtgen 7 and 9 aind with regard to the Shaping structures no longer set any limits.
409819/0013409819/0013
Claims (6)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722250912 DE2250912C3 (en) | 1972-10-18 | Packing for process engineering apparatus | |
CH1382073A CH583584A5 (en) | 1972-10-18 | 1973-09-26 | |
ES419887A ES419887A1 (en) | 1972-10-18 | 1973-10-17 | Body and filling for the exchange of substances and heat between gaseiform and liquid bones. (Machine-translation by Google Translate, not legally binding) |
ZA738053*A ZA738053B (en) | 1972-10-18 | 1973-10-17 | Vullichaam |
IT53177/73A IT1003531B (en) | 1972-10-18 | 1973-10-17 | FILLING BODY FOR TECHNOLOGICAL PROCESS EQUIPMENT |
NL7314350A NL7314350A (en) | 1972-10-18 | 1973-10-18 | |
FR7337258A FR2203671A1 (en) | 1972-10-18 | 1973-10-18 | Physical-chemical exchanger body - for filling interior of exchanger vessel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722250912 DE2250912C3 (en) | 1972-10-18 | Packing for process engineering apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2250912A1 true DE2250912A1 (en) | 1974-05-09 |
DE2250912B2 DE2250912B2 (en) | 1976-04-15 |
DE2250912C3 DE2250912C3 (en) | 1976-12-16 |
Family
ID=
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0030913A1 (en) * | 1979-12-17 | 1981-06-24 | Ernst Prof. Dr.-Ing. Günter | Device for cooling cooling water |
US4390481A (en) * | 1980-06-04 | 1983-06-28 | Aktiebolag Carl Munters | Apparatus for spraying trickler plates with cooling water |
US8375549B2 (en) | 2006-01-17 | 2013-02-19 | Bollhoff Verbindungstechnikk GmbH | Method for establishing a nail connection between two non-prepunched components |
RU2490578C2 (en) * | 2011-11-10 | 2013-08-20 | Олег Савельевич Кочетов | Cooling tower sprayer (versions) |
RU2491488C2 (en) * | 2011-08-09 | 2013-08-27 | Феликс Мубаракович Давлетшин | Polymer pipe of cooling tower sprinkler |
RU2493528C2 (en) * | 2011-08-09 | 2013-09-20 | Феликс Мубаракович Давлетшин | Polymer pipe of cooling tower sprinkler |
RU2494331C2 (en) * | 2011-11-10 | 2013-09-27 | Олег Савельевич Кочетов | Kochetov cooling tower sprayer |
JPWO2019151230A1 (en) * | 2018-01-30 | 2021-01-28 | 株式会社Ihi | Filler, its manufacturing method and liquid film forming structure |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0030913A1 (en) * | 1979-12-17 | 1981-06-24 | Ernst Prof. Dr.-Ing. Günter | Device for cooling cooling water |
US4390481A (en) * | 1980-06-04 | 1983-06-28 | Aktiebolag Carl Munters | Apparatus for spraying trickler plates with cooling water |
US8375549B2 (en) | 2006-01-17 | 2013-02-19 | Bollhoff Verbindungstechnikk GmbH | Method for establishing a nail connection between two non-prepunched components |
US9435366B2 (en) | 2006-01-17 | 2016-09-06 | Böllhoff Verbindungstechnik GmbH | Method for establishing a nail connection and nails therefor |
RU2491488C2 (en) * | 2011-08-09 | 2013-08-27 | Феликс Мубаракович Давлетшин | Polymer pipe of cooling tower sprinkler |
RU2493528C2 (en) * | 2011-08-09 | 2013-09-20 | Феликс Мубаракович Давлетшин | Polymer pipe of cooling tower sprinkler |
RU2490578C2 (en) * | 2011-11-10 | 2013-08-20 | Олег Савельевич Кочетов | Cooling tower sprayer (versions) |
RU2494331C2 (en) * | 2011-11-10 | 2013-09-27 | Олег Савельевич Кочетов | Kochetov cooling tower sprayer |
JPWO2019151230A1 (en) * | 2018-01-30 | 2021-01-28 | 株式会社Ihi | Filler, its manufacturing method and liquid film forming structure |
Also Published As
Publication number | Publication date |
---|---|
ES419887A1 (en) | 1976-11-16 |
DE2250912B2 (en) | 1976-04-15 |
NL7314350A (en) | 1974-04-22 |
FR2203671A1 (en) | 1974-05-17 |
FR2203671B3 (en) | 1976-09-17 |
ZA738053B (en) | 1974-07-31 |
IT1003531B (en) | 1976-06-10 |
CH583584A5 (en) | 1977-01-14 |
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Legal Events
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C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
EHJ | Ceased/non-payment of the annual fee |