EP0021007A2 - Dispositif pour séparer des corps de nettoyage - Google Patents

Dispositif pour séparer des corps de nettoyage Download PDF

Info

Publication number
EP0021007A2
EP0021007A2 EP80102699A EP80102699A EP0021007A2 EP 0021007 A2 EP0021007 A2 EP 0021007A2 EP 80102699 A EP80102699 A EP 80102699A EP 80102699 A EP80102699 A EP 80102699A EP 0021007 A2 EP0021007 A2 EP 0021007A2
Authority
EP
European Patent Office
Prior art keywords
sieve
screen
funnel
cleaning
housing wall
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
Application number
EP80102699A
Other languages
German (de)
English (en)
Other versions
EP0021007B1 (fr
EP0021007A3 (en
Inventor
Josef Koller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6073001&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0021007(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP0021007A2 publication Critical patent/EP0021007A2/fr
Publication of EP0021007A3 publication Critical patent/EP0021007A3/de
Application granted granted Critical
Publication of EP0021007B1 publication Critical patent/EP0021007B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/12—Fluid-propelled scrapers, bullets, or like solid bodies

Definitions

  • the invention relates to a device for branching off discrete cleaning bodies carried in a fluid flowing through a tubular heat exchanger from the main flow of the fluid, consisting of a branch housing through which axial flow flows and a separating sieve device arranged therein with at least one sieve surface arranged obliquely to the flow a branch pipe ends, the screen surface being pivotable for cleaning purposes to such an extent that the screen surface side previously located in the upstream direction comes to lie in the downstream direction.
  • Such a device is already known from DE-AS 12 27 040.
  • Such devices are used in self-cleaning tubular heat exchangers which work with cleaning bodies which are pressed through the tubes by the medium flowing through the tubes (for example cooling water), in order to strip off the impurities deposited on the walls and thereby keep the heat exchanger constantly cleaned .
  • the cleaning bodies sponge rubber balls are usually o. The like. Used whose diameter is slightly larger than the diameter of ärmearyerröhren W.
  • the device mentioned at the outset is arranged in the outlet line emerging from the heat exchanger, with which device the heat exchanger liquid and cleaning balls are then separated.
  • the cleaning bodies emerging from the branch connector can then, if necessary, be sucked off together with a small part of the heat exchange liquid by means of a return pump and can be returned to the inlet line of the tubular heat exchanger via a connecting line.
  • the known device consists of a tubular housing with a diameter which corresponds to the diameter of the heat exchanger outlet line.
  • Two screen devices are arranged in this tubular section-like housing, an upper screen device and a lower screen device.
  • the upper sieve device is formed from two sieve surfaces lying at an angle in the flow direction, which approach in the middle of the housing to a kind of funnel opening through which the cleaning bodies are guided into the lower sieve arrangement, while the heat exchange liquid essentially through the openings of the sieves passes through and flows through the cylinder-like housing laminar essentially unhindered.
  • the lower sieve device consists of a box arranged in the middle of the tube housing, which is connected to the horizontal boundary of the upper sieves and in turn consists of lower sieves oriented towards each other in a funnel shape.
  • Both the two upper sieves and the lower sieves are each rotatably mounted in the housing and can be actuated from the outside by backwashing for the purpose of cleaning the sieves. Due to the numerous actuation axes that are required for the various screens, a large number of pipe openings are necessary, which, because they have to be provided with seals, on the one hand make the production costs quite high, and on the other hand increase the need for maintenance of the system. This is especially true in reactor applications where radioactive substances could be carried in the heat exchange medium absolute tightness of the circuit is of particular importance.
  • DE-PS 26 12 905 tries to prevent the self-locking effect of throats by the fact that the branch pipe as an edge pipe along a portion of the elliptical boundary is arranged between the screen surface and the housing wall.
  • a similar construction is also shown in DE-AS 26 12 917, with the difference that the cleaning bodies are drawn off in the middle of the housing. In both cases, the arrangement of the pipes, which are slotted and in which eddy formation occurs due to the flow of exchanger liquid, largely prevents cleaning bodies from being deposited.
  • a disadvantage here is that the construction is again relatively complicated, in particular extensive and difficult welding work is necessary so as not to create areas with dead flow due to inaccurate work in the pipe branch, where in turn cleaning bodies can be deposited, which in turn can change the Flow conditions and thus could lead to further deposits of cleaning bodies until finally the entire suction device for the cleaning bodies is clogged.
  • a construction similar to DE-PS 12 27 040 is also shown in DE-PS 13 03 750, and reference should also be made to the two German patents 862 456 and 894 699, which were the first to deal with this process for self-cleaning heat exchangers.
  • the object of the invention is to simplify the device for branching off cleaning bodies of the type mentioned both with regard to manufacture and with regard to maintenance, without the backwash cleaning possibilities being impaired and without the risk that cleaning bodies can become self-locking in throats.
  • the object is achieved in that the at least one screen surface ends in the vicinity of the branch housing wall (which makes it easier to remove the cleaning bodies without increasing the overall length), and in that there is a transition surface between the upstream screen surface and the housing wall, where Radius of curvature or angle at the transition between screen surface and transition surface on the one hand and the angle between the transition surface and housing wall on the other are chosen so that self-locking of the cleaning body does not occur.
  • the radius of curvature should be larger than the diameter of the cleaning body. If the transition surface and sieve surface or housing wall form an angular corner, the angle should be at least 90 0 (although slightly more acute angles, e.g. 85 °, may be sufficient). This will surely prevent the accumulation of cleaning bodies due to jamming effects.
  • the transition surface can be formed by an edge plate, but also by a kink or curvature or fillet on the screen surface.
  • two sieve surfaces are provided, which are formed by sieves which are roof-like to one another and with the ridge in the counterflow direction.
  • the one sieve surface or both sieve surfaces can each be rotated about an axis.
  • the present construction can be modified such that the two roof-shaped screens are rigidly connected to one another and can be rotated together about an axis, which then lies essentially on the bisector of the angle formed by the two screen surfaces. This would only require a single actuation axis for backwashing, which reduces the number of required axis seals to two or, if only one of the axes is passed through the pipe wall, one.
  • Screen surface, edge plate and housing wall expediently form a kind of funnel, which ends at its narrower end in the discharge nozzle, which in turn through the housing wall to the outside is led.
  • a second (lower) sieve can be arranged between this end of the funnel and the discharge nozzle, which can be essentially funnel-shaped and is arranged such that it forms a funnel continuation.
  • this lower sieve in the case of two or more discharge ports there may also be more sieves
  • this drive lever is articulated at one end at the narrow end of the lower sieve, the other end of which is connected to an inwardly directed extension of the free end of the upper sieve, according to yet another embodiment, such that when the upper sieve is pivoted from the working position into the cleaning position, the lower sieve is also pivoted from the working position into the cleaning position.
  • the lower sieve could also be rigidly connected to an associated upper sieve and thus pivotable with it.
  • a pipe partition can be provided with four discharge pipes, which divides the upper roof-shaped sieve into two halves, which increases the stability of the arrangement and also enables the actuating shaft to be additionally supported in this pipe partition. Means this additional storage, it is even possible to also divide the actuating shaft and divide the entire arrangement into two branch halves which can be backwashed independently of one another.
  • upper sieves can also be individually pivoted next to one another, the inner upper sieves opening in a lower, funnel-shaped sieve and this opening into one (or more) discharge pipe.
  • the lower sieve could be rigidly connected to the adjacent sieve surface and pivotable with it, or it could consist of several, e.g. B. consist of two parts, one part can be connected to an adjacent upper sieve, the other part to the other upper sieve or also to the exhaust pipe or the housing wall.
  • the cleaning bodies 1 serve to remove deposits from the tubes of the heat exchanger (not shown), or to prevent their formation at all, so that the medium containing the cleaning elements causes the system to self-clean.
  • the cleaning bodies usually consist of sponge rubber balls with a diameter that is slightly larger than the diameter of the heat exchanger tubes to be cleaned.
  • other materials can also be used for the cleaning bodies, for example plastic foam material. It is only important that the cleaning bodies have approximately the same specific weight during operation as the heat exchange medium, so that undesired segregation processes do not occur.
  • the feeder device 10 according to the invention according to the embodiment shown in Fig. 1 comprises a cylindrically constructed branch housing 2 which expediently the same diameter as the light coming from the heat exchanger conduit (not shown) to which the upper end (inlet end) of the branch g ephaseuses 2 can be applied pressure-tight by means of a flange connection 14.
  • the lower end (outlet end) of the housing 2 is also connected in a pressure-tight manner via a flange connection 16 to a line of the same diameter, which represents a continuation of the heat exchanger circuit.
  • a separating screen 3 is used, which is arranged in the axial housing obliquely to the flow 12 in such a way that the cleaning bodies 1 are guided in the direction of a branch pipe 4, from which they are withdrawn by means of arrangements, not shown can.
  • the shape of the separating sieve 3 is elliptical in order to obtain an exact adaptation to the cylindrical housing wall of the branch housing 2.
  • the separating sieve 3 has openings which are so small that the cleaning elements 1 cannot pass through the openings, even taking into account their flexibility.
  • the permeability of the sieve should be so large that there is no significant impediment to the axial flow 12 through the sieve 3.
  • the separating sieve 3 can be pivoted about an actuating shaft 5 into a backwashing position (not shown), in which the sieve surface 18 pointing in the upstream direction during normal operation comes into an outflow position, while at the same time the sieve surface 20 previously located in the downstream direction comes into the upstream position is coming.
  • the flow directed through the sieve reverses its direction and flushes away the foreign bodies deposited on the surface 18.
  • the screen 3 is then brought back into the normal position, which is shown in FIG. 1.
  • a transition surface in the form of an edge plate 6 is now provided according to the invention between the screen surface 18 and the inner housing wall 22 such that between the upstream sieve surface 18 and upstream edge sheet metal surface 24, on the one hand, and between this edge sheet surface 24 and housing wall surface 22, on the other hand, a too acute fillet angle is prevented.
  • a fillet angle of at least 90 ° is preferably selected. Such a fillet angle prevents with certainty that cleaning bodies 1 get stuck in the withdrawal area of the screen surface 18, see also FIG. 2, which shows this area in greater detail.
  • the edge plate can be flat or curved, although the radius of curvature should be larger than the radius of the largest cleaning body to be branched off.
  • the flat or curved transition surface in the manner specified can also be formed instead of an edge plate by kinking the sieve surface or by a curvature or fillet on the edge of the sieve surface (not shown).
  • Fig. 1 has the disadvantage that it has a relatively large length.
  • 3 shows an improved construction in this respect, which instead of only one separating screen 3 now has two separating screens with corresponding branch branches 4 and edge plates 6.
  • the two separating screens 3 can be pivoted independently of one another about axes 5 and, in normal operation, are arranged in such a way that they form a roof with a roof ridge 24 pointing in the countercurrent direction. Otherwise, the method of operation is quite analogous to that which was described with reference to FIG. 1.
  • the arrangement of the axis 5 is expediently carried out so that the pressure created by the flow 12 and the flow resistance of the sieve 3 is divided equally between both lever arms of the sieve 3, so that essentially no flow about the axis 12 from the flow 3 onto the sieve 3 5 torque is created.
  • the arrangement could also be chosen so that a low torque occurs in the direction in which the screen 3 is rotated into its working position, so that a kind of self-locking of the lever 3 is achieved in Hästelluhg.
  • FIGS. 1 and 3 show the arrangement of two screens allows a considerable shortening of the branch housing 2 with the same housing diameter.
  • the disadvantage that is accepted is that two actuation axes 5 must be provided, which complicates the drive arrangement and also requires the arrangement of at least two breakthrough seals, which increases the susceptibility to maintenance.
  • Fig. 4 shows another embodiment in which this Pro bleme are not present.
  • the two individual sieves 3, which can still be seen in FIG. 3 are combined to form a roof-shaped sieve 30, in that the upper ends of the individual sieves 3 are firmly united and the lower ends are held apart by means of a strut 26.
  • the fulcrum 5 must be placed so that the lower end 32 of the two partial screens 3 does not, or at least not yet, touch the inner wall of the housing 2 when the opposite partial screen 3 has just reached the rinsing position.
  • the axis of rotation 5, which is expediently on the bisector of the two surfaces 18a, 18b, must not be too far from the imaginary line connecting the two surfaces 31, on the other hand, in order to avoid a lever arm that is too large, the pivot point must not be too close to this Line.
  • FIG. 4 also allows the attachment of so-called lower screens, which are advantageous in certain applications and are also already used in the prior art. 5 so that additional pivot axis bushings are not necessary due to the attachment of lower sieves, which should also be backwashable, a lever construction is provided according to FIG. 5, which also pivots when the upper sieve 30 is pivoted for the purpose of backwashing to pivot the lower sieves 32 accordingly leads to the backwash position.
  • Such lower sieves can also be provided in the construction according to FIG. 3, see FIG. 12, the lower sieves 32 being rigidly connected to the associated upper sieve 3 and being pivotable therewith for the purpose of backwashing.
  • the backwash position for the lower sieves is somewhat less favorable here than in the construction shown in FIG. 5, but the arrangement is simpler for this.
  • the screen surface 18a or 3 forms together with the inner wall 22 of the housing 2 and the surfaces 24 of the two Share existing edge plate 6 a kind of funnel, which merges at its lower end into a second funnel, which is formed by the sieve surfaces 34 of the lower sieve 32 and by the inner wall 22 of the housing 2 and a further surface 36, which the two sieve surfaces 34 of lower sieve 32 supports.
  • This surface 36 can be a closed plate or in turn a sieve surface.
  • the outlet opening of the funnel formed by the lower sieve 32 opens into the discharge nozzle 4.
  • the surface 36 which supports the sieve surface 34 is pivotably supported at its one (upper) end via an axis 38 suitably fastened to the inner housing wall, while at the other end of the surface 36 a lever 6 is articulated, the other end of which is articulated on a projection 40 of the screen 30.
  • This link connection is made in such a way that when the screen 30 is pivoted by rinsing, for example, the screen surface 18a (see FIG. 7), at least one of the two lower screens (in FIG. 7 it is the lower screen 32b) may reach the backwash position.
  • the other lower sieve (32a) reaches its backwashing position when the upper sieve 30 is pivoted into the washing position in which the sieve surface 18b is cleaned (not shown in FIG. 7).
  • Fig. 7 which consists of a roof-shaped upper sieve 30 and two funnel-shaped lower sieves 32, can thus be brought into the backwash position by a single pivot axis 5, with either a hand crank 42 being actuated for this purpose, or a corresponding mechanical drive, not shown, could take place.
  • the surface 36 can have a projection 7 in order to form a rear partition for the discharge pipe 4 when the lower screen 32 is in the working position.
  • the sieve surfaces 18a, 18b are not curved at their upper regions lying near the housing wall, but are made in a straight line and a further edge plate is used to close the opening between the edge of the sieve surface 18b and the housing wall 42 is provided so as to enable pivoting in both directions.
  • the pivoting angle can be increased further if, according to FIG. 10, the width of the ridge 24 is reduced and the further edge plates 42 are correspondingly widened, which could be necessary in particular in the case of a steeper screen inclination to allow the screen to be swiveled into the backwash position.
  • the connecting lever 9 may have to have a corresponding curvature in order to allow the screen surface 18a to pivot downward.
  • a further shortening of the overall length, in particular when using funnel-shaped lower sieves, can be achieved if, according to FIG. 8, two discharge ports 4 are arranged on each side, each of which has its own funnel-shaped lower sieve 32, so that a total of four lower sieves 32 are present are.
  • FIG. 8 can still be designed according to FIG. 9 in that a partition 44 is provided perpendicular to the pivot axis 5 in such a way that it separates the two lower sieves 32 on each side and also the upper sieve 30 in two partial sieves 30a, 30b.
  • This construction is particularly advantageous for larger pipe diameters.
  • the illustration in FIG. 9 shows an embodiment with an additional bearing 46 for the shaft 5 in the partition wall 44, as a result of which the shaft 5 in the region of this bearing 46 could be divided into two shafts 5a and 5b which can be actuated independently of one another.
  • a continuous shaft 5 with only one drive is also possible.
  • the construction according to FIG. 11 also shortens the overall length, in which four upper sieves 3 are arranged next to one another and in this way form two “roofs”.
  • the two inner upper sieves 3i open into a lower, at least in the direction of the pivot axes in cross section funnel-shaped downward sieve 32i, the z. B. is rigidly connected to one side wall 50 with an inner upper sieve 3i and can be pivoted therewith, while the side wall 50 either with the other inner upper sieve 3i or, more simply, with the housing wall or with the exhaust pipe 4i for which can collect in the iter sieve 32i collecting cleaning bodies.
  • edge plates 6 can also form a transition surface between sieve 3 and housing wall 22, which prevent jamming of cleaning bodies, such as bulging of the inner tube wall, kinking of the sieve edge and the like. the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Cleaning In General (AREA)
EP80102699A 1979-06-11 1980-05-16 Dispositif pour séparer des corps de nettoyage Expired EP0021007B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2923659A DE2923659C2 (de) 1979-06-11 1979-06-11 Vorrichtung zum Abzweigen von Reinigungskörpern
DE2923659 1979-06-11

Publications (3)

Publication Number Publication Date
EP0021007A2 true EP0021007A2 (fr) 1981-01-07
EP0021007A3 EP0021007A3 (en) 1981-02-04
EP0021007B1 EP0021007B1 (fr) 1982-11-24

Family

ID=6073001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80102699A Expired EP0021007B1 (fr) 1979-06-11 1980-05-16 Dispositif pour séparer des corps de nettoyage

Country Status (4)

Country Link
US (1) US4385660A (fr)
EP (1) EP0021007B1 (fr)
JP (1) JPS5613000A (fr)
DE (2) DE2923659C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522993A1 (fr) * 1982-03-11 1983-09-16 Technos Et Cie Perfectionnements aux dispositifs a grilles pour separer, des fluides qui les transportent, les corps nettoyants des echangeurs a tubes
FR2528331A1 (fr) * 1982-06-09 1983-12-16 Technos Et Cie Perfectionnements aux dispositifs pour separer, des fluides qui les transportent, les corps nettoyants des echangeurs a tubes

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3216443C1 (de) * 1982-05-03 1983-11-03 Taprogge Gesellschaft mbH, 4000 Düsseldorf Siebvorrichtung zum Abscheiden von Reinigungskoerpern aus dem Kuehlwasserstrom hinter einem Roehrenwaermetauscher
DE3303053C1 (de) * 1983-01-29 1983-12-29 Taprogge Gesellschaft mbH, 4000 Düsseldorf Vorrichtung fuer den Abzug von Reinigungskugeln aus dem Kuehlwasserstrom hinter Kraftwerkskondensatoren
US5010950A (en) * 1989-09-13 1991-04-30 Water Services Of America, Inc. Ball strainer for circulating ball cleaning system
IL94289A (en) * 1990-05-04 1992-12-01 Balls Technics Ltd Cleaning system for cleaning fluid-conducting tubing
FR2674458B1 (fr) * 1991-03-28 1993-05-21 Commissariat Energie Atomique Dispositif de nettoyage automatique et continu de la canalisation du recepteur solaire d'un photobioreacteur.
US5433229A (en) * 1994-04-06 1995-07-18 Slickbar Products Corp. System for recovering and washing tube cleaning plugs
US5473787A (en) * 1994-06-21 1995-12-12 Betz Laboratories, Inc. Method and apparatus for cleaning tubes of heat exchangers
US6245236B1 (en) * 1999-05-26 2001-06-12 Cercona Of America Inc. Reciprocating biological filter
FR2863697B1 (fr) * 2003-12-12 2008-09-12 Technos Et Cie Echangeur de chaleur muni de moyens de nettoyage.
CN100374809C (zh) * 2003-12-15 2008-03-12 王永杰 曲柄连杆式收球网装置
US6913071B1 (en) * 2004-05-03 2005-07-05 C.Q.M. Ltd. Ball trap with safety-release gate
JP6033715B2 (ja) * 2013-03-18 2016-11-30 三菱日立パワーシステムズ株式会社 管式熱交換器用洗浄体捕集装置
TWM498631U (zh) * 2013-11-14 2015-04-11 Ching-Sung Tang 具有清潔裝置的儲液設備

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB745556A (en) * 1953-06-18 1956-02-29 Babcock & Wilcox Ltd Improvements in apparatus for cleaning the surfaces of heat exchange means
AT212339B (de) * 1957-07-23 1960-12-12 Josef Dipl Ing Taprogge Verfahren zur Selbstreinigung von Rohren in Röhrenwärmeaustauschern und Vorrichtung zu seiner Durchführung
DE1303750C2 (de) * 1964-12-12 1973-05-10 Hitachi Ltd Vorrichtung zum abzweigen von reinigungselementen aus dem hauptstrom eines einen waermetauscher durchstroemenden mediums
JPS4321002Y1 (fr) * 1967-11-10 1968-09-04
DE2612905C3 (de) * 1976-03-26 1978-10-05 Ludwig Taprogge, Reinigungsanlagen Fuer Roehren-Waermeaustauscher, 4000 Duesseldorf Vorrichtung zum Abzweigen von Reinigungselementen
DE2612917C2 (de) * 1976-03-26 1978-06-01 Ludwig Taprogge, Reinigungsanlagen Fuer Roehren-Waermeaustauscher, 4000 Duesseldorf Vorrichtung zum Abzweigen von Reinigungselementen
FR2438814A1 (fr) * 1978-10-11 1980-05-09 Technos Perfectionnements apportes au nettoyage d'echangeurs de chaleur a tubes
JPS55143399A (en) * 1979-04-23 1980-11-08 Hitachi Ltd Cleaner arresting device for tubular heat exchanger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522993A1 (fr) * 1982-03-11 1983-09-16 Technos Et Cie Perfectionnements aux dispositifs a grilles pour separer, des fluides qui les transportent, les corps nettoyants des echangeurs a tubes
FR2528331A1 (fr) * 1982-06-09 1983-12-16 Technos Et Cie Perfectionnements aux dispositifs pour separer, des fluides qui les transportent, les corps nettoyants des echangeurs a tubes
EP0096607A1 (fr) * 1982-06-09 1983-12-21 TECHNOS et COMPAGNIE Perfectionnements aux dispositifs pour séparer, des fluides qui les transportent, les corps nettoyants des échangeurs à tubes

Also Published As

Publication number Publication date
DE2923659A1 (de) 1980-12-18
JPS5613000A (en) 1981-02-07
EP0021007B1 (fr) 1982-11-24
DE2923659C2 (de) 1981-12-24
DE3061142D1 (en) 1982-12-30
EP0021007A3 (en) 1981-02-04
US4385660A (en) 1983-05-31

Similar Documents

Publication Publication Date Title
DE2616643C3 (de) Verfahren zum kontinuierlichen Eindicken von strömenden Suspensionen und Vorrichtung zur Durchführung des Verfahrens
EP0021007A2 (fr) Dispositif pour séparer des corps de nettoyage
DE3131281C2 (de) Vorrichtung zum getrennten Führen zweier Ströme, wahlweise nur eines Stromes, mindestens eines Mediums
DE2940883C2 (de) Vorrichtung zur Reinigung der Rohre eines Wärmetauschers
DE2249603A1 (de) Filterelement
DE2612905C3 (de) Vorrichtung zum Abzweigen von Reinigungselementen
DE3403198C2 (de) Vorrichtung zum Reinigen der Röhren von Wärmetauschern mittels Reinigungskörpern
DE68904373T2 (de) Vorrichtung zum abscheiden von abgeriebenen reinigungskugeln aus rohrbuendeln.
DE3015677A1 (de) Vorrichtung zum auffangen von zum reinigen eines roehrenwaermetauschers verwendeten reinigungskoerpern
DE10151496B4 (de) Filtereinrichtung mit Filterrotor, speziellen Filterelementen und permanenter Rückspülung der Filterelemente sowie einer Spülschmelzeregulierung mittels Spülventil
DE3917520C2 (de) Vorrichtung zum Reinigen von Flüssigkeiten
DE3210718A1 (de) Vorrichtung zur durchflussregulierung
DE19925630A1 (de) Vorrichtung zur mechanischen Reinigung von Flüssigkeiten
WO2005040501A1 (fr) Reservoir de drainage a tuyau de rinçage
DE2058395A1 (de) Siebvorrichtung zum Abscheiden von Feststoffen aus Fluessigkeitsstroemen in Rohrleitungen
DE3337827C2 (fr)
DE3218386C1 (de) Vorrichtung zum Reinigen der Röhren von Röhren-Wärmetauschern
DE3133927C2 (de) Fischtreppe
DE2635923C3 (de) Muffenventil
DE3214929C2 (de) Siebvorrichtung zum Abscheiden von Reinigungskörpern aus dem Kühlwasserstrom hinter einem Röhrenwärmetauscher
DE3211142C2 (de) Siebvorrichtung für den Kühlwasserstrom eines Röhrenwärmetauschers, insbesondere eines Kraftwerkswärmetauscher
CH690918A5 (de) Ueberlaufkanal.
DE2305710B2 (de) Venturi-Wäscher
DE2912011B2 (de) Rohrregister für einen Durchlauferhitzer
EP3415675B1 (fr) Dispositif de traitement de textiles en boyau se présentant sous la forme d'un boyau continu

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 19800905

AK Designated contracting states

Designated state(s): DE FR GB IT NL

AK Designated contracting states

Designated state(s): DE FR GB IT NL

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): DE FR GB IT NL

REF Corresponds to:

Ref document number: 3061142

Country of ref document: DE

Date of ref document: 19821230

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19830525

Year of fee payment: 4

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: TAPROGGE GESELLSCHAFT MBH

Effective date: 19830819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19840516

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19840720

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19840828

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19841201

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19860131

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: TAPROGGE GESELLSCHAFT MBH

Effective date: 19830819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19890201

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state
27W Patent revoked

Effective date: 19890528

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO