EP0021007B1 - Vorrichtung zum Abzweigen von Reinigungskörpern - Google Patents

Vorrichtung zum Abzweigen von Reinigungskörpern Download PDF

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Publication number
EP0021007B1
EP0021007B1 EP80102699A EP80102699A EP0021007B1 EP 0021007 B1 EP0021007 B1 EP 0021007B1 EP 80102699 A EP80102699 A EP 80102699A EP 80102699 A EP80102699 A EP 80102699A EP 0021007 B1 EP0021007 B1 EP 0021007B1
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EP
European Patent Office
Prior art keywords
screen
casing wall
screen surface
sieve
hopper
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.)
Expired
Application number
EP80102699A
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German (de)
English (en)
French (fr)
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EP0021007A3 (en
EP0021007A2 (de
Inventor
Josef Koller
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Individual
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Individual
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Publication date
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Publication of EP0021007A2 publication Critical patent/EP0021007A2/de
Publication of EP0021007A3 publication Critical patent/EP0021007A3/de
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    • 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 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, which is guided through the housing wall to the outside, the sieve surface being pivotable for cleaning purposes to such an extent that the sieve surface side previously located in the upstream direction comes to lie in the downstream direction and the sieve surface ends downstream near the housing wall and there a throat with the housing wall forms.
  • a device is known from Japanese utility model 43-21002 / 1968.
  • any plastic coating that may be required e.g. with sea water as the heat exchange medium is very difficult to apply.
  • the object of the invention is to improve the device according to the prior art in such a way that without the strength of the branch housing wall weakening slots the self-locking effect of cleaning bodies in the throat area between the branch housing wall and screen surface is eliminated.
  • a flat or curved edge plate (or kink) of the screen surface fastened to the housing wall or screen surface is provided, with the fillet angle between the edge plate (or kink) in the case of a flat edge plate. and the housing wall and / or between the edge plate (or kink) and the sieve surface is at least 90 ° and, in the case of a curved edge plate, the radius of curvature at the transition between the edge plate (or kink) and the housing wall and / or between the edge plate (or kink) and the sieve surface is greater than that half the diameter of the cleaning body is.
  • the screen surface, edge plate and housing wall expediently form a kind of funnel which opens at its narrower end on the branch connector, which in turn is guided through the housing wall to the outside.
  • a second lower sieve can be arranged between this funnel end and the branch connector, which can be essentially funnel-shaped and is arranged in such a way that it forms a funnel continuation.
  • this lower sieve in the case of two or more discharge nozzles, there may also be more sieves in accordance with claim 7, so that this sieve can also be cleaned by backwashing.
  • a drive lever is articulated at one end at the narrow end of the lower sieve, the other end of which is connected to an inward projection of the free end of the upper sieve, such that 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 pivotable with it, as stated in claim 9.
  • a pipe partition can be provided with four discharge ports, 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.
  • upper sieves can also be individually pivoted next to one another, the inner upper sieves opening in a lower, funnel-shaped sieve and opening into one (or more) discharge pipe.
  • the lower screen could be rigidly connected to the adjacent screen surface and pivotable with it, or it could consist of several, e.g. there are two parts, one part being connected to an adjacent upper sieve, the other part being connected to the other upper sieve or also to the exhaust pipe or the housing wall.
  • the edge plate will usually consist of sheet metal, especially if the other parts of the device, such as the housing and / or sieve, are also made of metal, but it can of course also be e.g. be constructed from a plastic body, which is particularly useful if the device or parts thereof are also made of plastic.
  • the cleaning bodies 1 serve to free the tubes of the heat exchanger (not shown) from deposits, 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.
  • the branching device 10 according to the embodiment shown in Fig. 1 comprises a cylindrical branch housing 2, which advantageously has the same diameter as the line coming from the heat exchanger (not shown) to which the upper end (inlet end) of the branch housing 2 by means of a Flange connection 14 can be applied pressure-tight.
  • 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 at an angle 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 drawn off 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. Then the sieve 3 is brought back into the normal position, which is shown in FIG. 1.
  • a transition surface in the form of an edge plate 6 between the screen surface 18 and the inner housing wall 22 is now provided according to the invention such that between the on the upstream sieve surface 18 and on the upstream edge sheet metal surface on the one hand and between this edge sheet surface and the housing wall surface 22 on the other hand a too acute fillet angle is prevented.
  • a fillet angle of at least 90 ° is 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, the radius of curvature being greater 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 a construction which is improved in this respect and 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 such 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 has been 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 the working position.
  • 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 these problems 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 that of the two Surfaces 31 connecting imaginary line are distant, on the other hand, the pivot point must not be too close to this line to avoid too large a lever arm.
  • FIG. 4 also enables 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 respective 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 of the two parts existing edge plate 6 a kind of funnel, which at its lower end merges 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 the lower Siebes 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 pivotally mounted at its one (upper) end via an axis 8, 38 which is suitably fastened to the inner housing wall, while at the other end 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 43 being actuated for this purpose or a corresponding one machine 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 further increased if, according to FIG. 10, the width of the ridge 24 is reduced and the further edge plates 42 are widened accordingly, which could be necessary in particular with a steeper screen inclination in order to enable screen pivoting into the backwashing 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 removed 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 divides.
  • 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 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. Self a continuous shaft 5 with only one drive is understandably 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 sieve 32i which narrows downwards in a funnel shape in cross-section, at least in the direction of the pivot axes.
  • one side wall 50 is rigidly connected to an inner upper sieve 3i and can be pivoted with it, 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 the lower sieve 32i collecting cleaning body can be connected.
  • 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

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  • 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 Vorrichtung zum Abzweigen von Reinigungskörpern Expired EP0021007B1 (de)

Applications Claiming Priority (2)

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

Publications (3)

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

Family

ID=6073001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80102699A Expired EP0021007B1 (de) 1979-06-11 1980-05-16 Vorrichtung zum Abzweigen von Reinigungskörpern

Country Status (4)

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

Families Citing this family (15)

* 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
DE3216443C1 (de) * 1982-05-03 1983-11-03 Taprogge Gesellschaft mbH, 4000 Düsseldorf Siebvorrichtung zum Abscheiden von Reinigungskoerpern aus dem Kuehlwasserstrom hinter einem Roehrenwaermetauscher
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
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
TWI511804B (zh) * 2013-11-14 2015-12-11 Ching Sung Tang 具有清潔裝置的儲液設備

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4321002Y1 (ja) * 1967-11-10 1968-09-04
US4135574A (en) * 1976-03-26 1979-01-23 Ludwig Taprogge, Reinigungsanlagen Fur Rohren-Warmeaustauscher Device for recovering cleaning elements from a heat-exchanger stream

Family Cites Families (6)

* 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
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4321002Y1 (ja) * 1967-11-10 1968-09-04
US4135574A (en) * 1976-03-26 1979-01-23 Ludwig Taprogge, Reinigungsanlagen Fur Rohren-Warmeaustauscher Device for recovering cleaning elements from a heat-exchanger stream

Also Published As

Publication number Publication date
EP0021007A3 (en) 1981-02-04
US4385660A (en) 1983-05-31
DE3061142D1 (en) 1982-12-30
JPS5613000A (en) 1981-02-07
DE2923659A1 (de) 1980-12-18
DE2923659C2 (de) 1981-12-24
EP0021007A2 (de) 1981-01-07

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