EP0026261B1 - Device for separating cleaning bodies from a fluid flowing out of a shell-and-tube heat exchanger - Google Patents

Device for separating cleaning bodies from a fluid flowing out of a shell-and-tube heat exchanger Download PDF

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Publication number
EP0026261B1
EP0026261B1 EP80103438A EP80103438A EP0026261B1 EP 0026261 B1 EP0026261 B1 EP 0026261B1 EP 80103438 A EP80103438 A EP 80103438A EP 80103438 A EP80103438 A EP 80103438A EP 0026261 B1 EP0026261 B1 EP 0026261B1
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EP
European Patent Office
Prior art keywords
separating
header box
screens
screen
cleaning bodies
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EP80103438A
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German (de)
French (fr)
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EP0026261A1 (en
Inventor
Werner Borchert
Adalbert Schulz
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Individual
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Priority to AT80103438T priority Critical patent/ATE2197T1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00Non-rotary, e.g. reciprocated, appliances
    • F28G1/12Fluid-propelled scrapers, bullets, or like solid bodies

Definitions

  • the invention relates to a device for separating cleaning bodies from a fluid flowing out of a tubular heat exchanger, consisting of a housing through which the fluid flows axially and two semi-elliptical separating screens which can be pivoted about an axis running transversely to the direction of flow and in their oblique screen position with their lower edge open into a collector box which projects transversely through the housing and is open at the top and which is provided with at least one pivotable side wall and one or more exhaust pipes.
  • spherical cleaning bodies made of sponge rubber or the like are introduced into the fluid used as a coolant for constant cleaning and pressed through the tubes. After leaving the tubular heat exchanger, the cleaning bodies are separated from the fluid and returned to the fluid flowing to the tubular heat exchanger in the circuit.
  • a device is known from AT-B-212339, for example, in which two semi-elliptical separating sieves in their oblique sieve or catching position open funnel-shaped into a collector box, which is also funnel-shaped and opens into a drain pipe.
  • the approximately triangular side walls, which run parallel to the lower edge of the separating sieves, are fixed to the housing, while the other two sieve-shaped wall parts are pivotally mounted about an axis which runs transversely to the pivot axes of the separating sieves.
  • adjustable throttle elements are available to adjust the flow conditions above and below the header box.
  • a partial flow of the fluid flows through the collector box, the cleaning bodies caught by the collector box being sucked off via the exhaust pipe.
  • the separating sieves in particular the sieve-like wall parts belonging to the collector box, quickly become clogged by dirt particles and algae deposits and that the flow of the cleaning bodies on the separating sieves is impaired.
  • the separating screens therefore have to be cleaned frequently.
  • DE-B 1227040 provides a closure flap arranged at the inlet of the collector box, by means of which a backwash is forced which is intended to repel the dirt.
  • this collector formed by the collector box, the sieve-like wall parts located therein, the throttles and the closure flap with their numerous actuators, is very complex and prone to failure.
  • backwashing does not sufficiently clean the separating screens.
  • This disadvantage also adheres to another known embodiment described in DE-C 1303750, in which diverging intermediate gratings are arranged at the lower end of the upper separating screens in order to improve the flow conditions in the critical transition area. This prevents the cleaning bodies from jamming in this zone; however, this has no influence on the required cleaning of the separating sieves.
  • the object of the invention is to design a device of the generic type in such a way that the separating sieves and the collector can be cleaned more effectively with a much simpler construction.
  • At least one of the side walls of the collector box that runs parallel to the lower edge of the separating screens is attached to the associated separating screen and is designed to be pivotable therewith.
  • the bottom closing the collector box can be designed differently depending on the size and the desired position of the exhaust pipe or pipes.
  • the base preferably consists of one or more funnels, at the lowest point of which a discharge pipe running across the side walls of the collector box is connected.
  • the side wall lying on the side of the exhaust pipes is permanently installed and only the opposite side wall is fastened to the associated separating sieve and can be pivoted therewith.
  • either one side wall or both side walls can be fastened to the separating screen belonging to the relevant side and can be designed to be pivotable therewith.
  • the cleaning effect can also be further improved in that the bottom of the collector box is fastened to a pivotable side wall and is therefore also pivoted out in the cleaning position for a more favorable outflow.
  • the collector box consists exclusively of sheet metal parts with a smooth surface, the flow conditions are also considerably more favorable than the known sieve-like wall parts.
  • the flow threads are mainly directed towards the exhaust pipe.
  • a liquid flow F serves as a coolant
  • the liquid e.g. Water flows from an inflow line 102 in the direction of arrow W through a tube bundle 101 into an outflow line 103.
  • the cooling tubes of the tube bundle 101 are cleaned with the aid of a multiplicity of cleaning bodies B made of sponge rubber, the diameter of which corresponds approximately to the inside diameter of these cooling tubes, the cleaning bodies B carried by the liquid from the drain line 103 via a by-pass line 104, which with a pump 105 and a shut-off valve 106 are circularly fed back into the inflow line 102.
  • a collecting container 107 Arranged in the by-pass line 104 is a collecting container 107 which is able to hold all the cleaning bodies B in circulation.
  • a secondary line 111 closed by a valve 112 during the circulation phase is flowed through by the liquid during the collection phase with the valve 112 open and the valve 110 closed, the cleaning bodies B being collected in the collecting container 107 until all the cleaning bodies in circulation are collected in the collecting container 107.
  • a separating device 1 is arranged in the drain line 103 in a known manner. 2 to 5, two separating screens 2, 3 are arranged on pivot bearings 4 ', 4 "for separating the cleaning bodies carried by the fluid in the drain line 103. These separating screens 2, 3 are each attached to a semi-elliptical frame 20, 30, with the lower edge in each case lying transversely in the horizontal direction in the pipeline 103.
  • Both separating screens 2, 3 are in their working position, in which the cleaning bodies are to be caught, in the rinsing position shown in solid lines in FIG 14 ', 14 "can be pivoted, in which the back surface of the separating sieves is flown to in order to adhere dirt particles, algae and the like adhering to the sieves. Like. Rinse off.
  • the separating screens 2, 3 open into a collector box 5, which is delimited on the end face by end walls 15, 16 and by the side walls 7, 8 and a bottom 11. This narrow and open at the top
  • the collector box extends transversely through the drain pipe 103.
  • the side wall 8 is fixed; the side wall 7 is fastened with the aid of intermediate pieces 17, 18 at the lower end of the sieve frame 20 from the separating sieve 2 and can be pivoted therewith.
  • the bottom 11 in the embodiment according to FIGS. 2 to 5 consists of several funnel-shaped plates which are fastened to the side wall 7 and pivot with it. At the lowest point of the two funnels there are two discharge pipes 6 ', 6 ".
  • the overall height can therefore vary if necessary, be kept very low.
  • the side walls 7, 8 preferably consist of non-perforated metal sheets, which, however, can optionally also be perforated.
  • the side wall 8 and the end walls 15, 16 form a fixed unit with exhaust pipes 6 ', 6 ", while the side wall 7 connected to the base 11 is detachable from this unit, the latter on the frame 20 is fastened with the aid of the intermediate pieces 17, 18 screwed in at 19.
  • the two screens 2, 3 are rotated into their rinsing position, the side walls 7 and the bottom 11 are swung away from the central plane M, whereby the box is opened and its walls as well as the latter Soil from which water flowing through the drain pipe 103 is applied The water flow flows against the rear surfaces of the downwardly diverging parts of the sieves 2, 3 and flows through their interstices in the opposite direction, so that any accumulated solid particles are washed away.
  • the grate parts of the screens 2, 3 are connected by crossbars 12, 13 and, as shown in FIG. 6, approximately at the level of their pivot axes 4 ', 4 "divided into two sections 21, 22 and 31, 32 which form upper and lower screen parts , which include different angles a and ⁇ with the central plane M in their working position, a preferably being between 20 ° and 30 ° and preferably approximately 2.
  • the upper sieve parts 21 and 31 thus diverge with a larger acute angle 2 a than the lower ones Sieve parts 22,32, which form an acute angle 2ß.
  • the flow component directed perpendicular to the bent sections 21, 31 is halved compared to the flow component directed perpendicular to the main screen surface.
  • the frictional resistance at the kinked sieve sections is smaller, with the result that the cleaning bodies flow evenly into the collector box without jam.
  • the bent screen sections 21, 31 are subjected to a stronger flow from their rear side and are therefore better cleaned.
  • the angle of inclination ⁇ is approximately half as large as the angle of inclination ⁇ in FIG. 6, the same effect can be achieved with another smaller angle of inclination ⁇ , provided the vertical flow component is sufficiently small to reduce the frictional resistance accordingly.
  • the embodiment according to FIGS. 2 to 6 can also be modified in that the upper region of the sloping bottom 11 is arranged between the sieve sections 22, 32 and is adapted to the V-shaped cross section of this sieve section in order to further reduce the overall height.
  • FIG. 7 shows a first modified embodiment of the collector box 5a, the bottom of which forms a simple channel, the one exhaust pipe 6a running between the end walls 15a, 16a transverse to the longitudinal axis of the collector box.
  • the exhaust pipe can also be connected to the collector box in the longitudinal direction.
  • the bottom 11b runs obliquely downwards from a high position at one end to a lower position at the other end, on which a discharge pipe 6b extends in the longitudinal direction to the collector box, i.e. is connected to the front end 15b.
  • This configuration can in turn be modified to the form shown in FIG. 9, in which, from a medium high position, two base parts 11c run obliquely downwards towards the end walls 15c, 16c and in each case an exhaust pipe 6c ', 6c "on the end walls. flow out.
  • both side walls 7c, 8c can be attached to the separating screen 3 or 2 associated with the relevant side and pivoted with them. This can further improve the rinsing effect.
  • the bottom 11c can be attached to one or the other separating sieve 7c or 8c.
  • the collector box is made of sheet metal parts with a smooth surface, contamination is caused by the accumulation of dirt particles, algae and the like. Like. Significantly reduced. While in the known devices the sieve box and its components get dirty faster than the two main sieves, cleaning according to the invention is only necessary as a function of the slower contamination of the separating sieves. If such cleaning takes place by pivoting the separating sieves 2, 3 into the rinsing position, the collector box 5 is inevitably opened and thus also automatically cleaned.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Processing Of Solid Wastes (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

A fluid-circulation system, specifically a heat exchanger with entrance and exit ducts interconnected by a bank of tubes, is provided in its exit duct with an extractor for intercepting generally spherical cleaning bodies of sponge rubber or the like which are to be returned to the inlet duct via a bypass connection for recirculation through the tubes. The extractor comprises two substantially symmetrical screens, converging downward in the direction of fluid flow, which direct the oncoming cleaning bodies into a narrow collecting box having a sloping bottom near one or more outlets forming part of the bypass connection. The two screens have generally planar confronting surfaces and are swingable about respective transverse axes into a downwardly diverging position in which their opposite surfaces are exposed to the flow for cleansing purposes during a regeneration phase. At least one sidewall of the collecting box is secured to the adjoining screen for separation, together with the sloping box bottom, from the opposite sidewall when the two screens are swung into their regenerating position.

Description

Die Erfindung betrifft eine Vorrichtung zum Abscheiden von Reinigungskörpern aus einem, einem Röhrenwärmetauscher entströmenden Fluid, bestehend aus einem von dem Fluid axial durchströmten Gehäuse und zwei halbelliptischen Trennsieben, welche um eine quer zur Strömungsrichtung verlaufende Achse verschwenkbar sind und in ihrer schrägen Siebstellung mit ihrem unteren Rand in einen das Gehäuse quer durchragenden, nach oben offenen Sammlerkasten münden, der mit wenigstens einer verschwenkbaren Seitenwand und einem oder mehreren Abzugrohren versehen ist.The invention relates to a device for separating cleaning bodies from a fluid flowing out of a tubular heat exchanger, consisting of a housing through which the fluid flows axially and two semi-elliptical separating screens which can be pivoted about an axis running transversely to the direction of flow and in their oblique screen position with their lower edge open into a collector box which projects transversely through the housing and is open at the top and which is provided with at least one pivotable side wall and one or more exhaust pipes.

Bei Röhrenwärmetauschern werden zur ständigen Reinigung kugelförmige Reinigungskörper aus Schwammgummi o. dgl. in das als Kühlmittel benutzte Fluid eingeleitet und durch die Röhren gedrückt. Nach Verlassen des Röhrenwärmetauschers werden die Reinigungskörper aus dem Fluid abgeschieden und im Kreislauf wieder dem dem Röhrenwärmetauscher zuströmenden Fluid zugeleitet. Zum Abscheiden der Reinigungskörper ist beispielsweise aus der AT-B-212339 eine Vorrichtung bekannt, bei der zwei halbelliptische Trennsiebe in ihrer schrägen Sieb- bzw. Fangstellung trichterförmig in einen Sammlerkasten münden, der ebenfalls trichterförmig ausgebildet ist und in ein Abzugrohr einmündet. Bei dieser Ausführung sind die etwa dreieckförmigen Seitenwände, die parallel zum unteren Rand der Trennsiebe verlaufen, am Gehäuse fixiert, während die beiden anderen siebartig ausgebildeten Wandteile um eine Achse verschwenkbar gelagert sind, die quer zu den Schwenkachsen der Trennsiebe verläuft.In the case of tubular heat exchangers, spherical cleaning bodies made of sponge rubber or the like are introduced into the fluid used as a coolant for constant cleaning and pressed through the tubes. After leaving the tubular heat exchanger, the cleaning bodies are separated from the fluid and returned to the fluid flowing to the tubular heat exchanger in the circuit. For separating the cleaning bodies, a device is known from AT-B-212339, for example, in which two semi-elliptical separating sieves in their oblique sieve or catching position open funnel-shaped into a collector box, which is also funnel-shaped and opens into a drain pipe. In this embodiment, the approximately triangular side walls, which run parallel to the lower edge of the separating sieves, are fixed to the housing, while the other two sieve-shaped wall parts are pivotally mounted about an axis which runs transversely to the pivot axes of the separating sieves.

Weiterhin sind zur Einstellung der Strömungsverhältnisse über und unter dem Sammlerkasten verstellbare Drosselelemente vorhanden. Bei dieser Ausführung fliesst ein Teilstrom des Fluids durch den Sammlerkasten hindurch, wobei die von dem Sammlerkasten aufgefangenen Reinigungskörper über das Abzugrohr abgesaugt werden. Bei Vorrichtungen dieser Art besteht die Schwierigkeit, dass die Trennsiebe, insbesondere die zum Sammlerkasten gehörenden siebartigen Wandteile, durch Schmutzteilchen und Algenansatz schnell verstopfen und der Ablauf der Reinigungskörper auf den Trennsieben beeinträchtigt wird. Die Trennsiebe müssen deshalb häufig gereinigt werden. Hierfür sieht die DE-B 1227040 eine am Einlauf des Sammlerkastens angeordnete Verschlussklappe vor, durch welche eine Rückspülung erzwungen wird, welche die Verschmutzungen abstossen soll. Dieser vom Sammlerkasten, den darin befindlichen siebartigen Wandteilen, den Drosseln und der Verschlussklappe mit ihren zahlreichen Stellorganen gebildete Sammler ist jedoch sehr aufwendig und störanfällig. Ausserdem wird duch die Rückspülung keine ausreichende Säuberung der Trennsiebe erreicht. Dieser Nachteil haftet auch einer anderen bekannten in der DE-C 1303750 beschriebenen Ausführung an, bei der zur Verbesserung der Strömungsverhältnisse in dem kritischen Übergangsbereich am unteren Ende der oberen Trennsiebe divergierende Zwischenroste angeordnet sind. Hierdurch wird zwar ein Stau der Reinigungskörper in dieser Zone vermieden; auf die erforderliche Reinigung der Trennsiebe hat dies jedoch keinen Einfluss.Furthermore, adjustable throttle elements are available to adjust the flow conditions above and below the header box. In this embodiment, a partial flow of the fluid flows through the collector box, the cleaning bodies caught by the collector box being sucked off via the exhaust pipe. With devices of this type, there is the difficulty that the separating sieves, in particular the sieve-like wall parts belonging to the collector box, quickly become clogged by dirt particles and algae deposits and that the flow of the cleaning bodies on the separating sieves is impaired. The separating screens therefore have to be cleaned frequently. For this purpose, DE-B 1227040 provides a closure flap arranged at the inlet of the collector box, by means of which a backwash is forced which is intended to repel the dirt. However, this collector, formed by the collector box, the sieve-like wall parts located therein, the throttles and the closure flap with their numerous actuators, is very complex and prone to failure. In addition, backwashing does not sufficiently clean the separating screens. This disadvantage also adheres to another known embodiment described in DE-C 1303750, in which diverging intermediate gratings are arranged at the lower end of the upper separating screens in order to improve the flow conditions in the critical transition area. This prevents the cleaning bodies from jamming in this zone; however, this has no influence on the required cleaning of the separating sieves.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung der gattungsgemässen Art derart auszubilden, dass bei einem wesentlich einfacheren Aufbau eine wirksamere Reinigung der Trennsiebe und des Sammlers ermöglicht wird.On the basis of this prior art, the object of the invention is to design a device of the generic type in such a way that the separating sieves and the collector can be cleaned more effectively with a much simpler construction.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass wenigstens eine der parallel zum unteren Rand der Trennsiebe verlaufenden Seitenwand des Sammlerkastens an dem zugehörigen Trennsieb befestigt und mit diesem verschwenkbar ausgebildet ist.This object is achieved according to the invention in that at least one of the side walls of the collector box that runs parallel to the lower edge of the separating screens is attached to the associated separating screen and is designed to be pivotable therewith.

Durch diese Ausbildung entfallten sowohl im Sammlerkasten verschwenkbar angeordnete Trennsiebe als auch Drosseln, Veschlussklappe und die zahlreichen Stellorgane. Der wesentliche Vorteil besteht jedoch darin, dass zum Zwecke der Reinigung beim Verschwenken der Trennsiebe wenigstens eine Seitenwand des Sammlerkastens gleichzeitig mit abgeschwenkt und damit das Innere des Sammlerkastens für ein freies Anströmen des Fluids geöffnet wird und alle Teile des Sammlerkastens wirksamer gereinigt werden. Darüber hinaus wird die abgeschwenkte Seitenwand von ihrer Rückseite angeströmt. Da die abschwenkbare Seitenwand an dem ohnehin verschwenkbaren Trennsieb befestigt ist, ist für deren Abschwenken kein besonderes Stellorgan erforderlich. Der Gesamtaufbau der Vorrichtung ist daher wesentlich einfacher und weniger störanfällig.Due to this training, separating screens arranged pivotably in the collector box as well as throttles, closing flap and the numerous actuators were eliminated. The main advantage, however, is that for the purpose of cleaning when pivoting the separating sieves, at least one side wall of the collector box is pivoted at the same time and thus the interior of the collector box is opened for a free flow of the fluid and all parts of the collector box are cleaned more effectively. In addition, the swung-away side wall is flown against from the rear. Since the swiveling side wall is attached to the separating screen, which can be swiveled anyway, no special actuator is required for swiveling it. The overall structure of the device is therefore much simpler and less prone to failure.

Der den Sammlerkasten abschliessende Boden kann in Abhängigkeit von der Grösse und der erwünschten Lage des oder der Abzugrohre verschieden ausgebildet sein. Soll das Abzugrohr quer an die verschwenkbaren Seitenwände anschliessen, besteht der Boden vorzugsweise aus einem oder mehreren Trichtern, an deren tiefster Stelle je ein quer zu den Seitenwänden des Sammlerkastens verlaufendes Abzugrohr angeschlossen ist. Bei einer solchen Ausführung wird die auf der Seite derAbzugrohre liegende Seitenwand fest eingebaut und nur die gegenüberliegende Seitenwand an dem zugehörigen Trennsieb befestigt und mit diesem verschwenkbar sein. Ist jedoch ein Anschluss des Abzugrohres längs der Seitenwände des Sammlerkastens erwünscht, so kann entweder ein in dieser Längsrichtung schräg verlaufender Boden, an dessen tiefster Stelle das Abzugrohr angeschlossen ist, oder ein von der Mitte der Seitenwände aus nach beiden Enden hin schräg nach unten verlaufender Boden vorgesehen sein, wobei an jedem Ende ein Abzugrohr vorhanden ist. Bei diesen beiden Ausführungen können wahlweise eine Seitenwand oder beide Seitenwände an dem der betreffenden Seite zugehörigen Trennsieb befestigt und mit diesem verschwenkbar ausgebildet sein.The bottom closing the collector box can be designed differently depending on the size and the desired position of the exhaust pipe or pipes. If the discharge pipe is to connect transversely to the pivotable side walls, the base preferably consists of one or more funnels, at the lowest point of which a discharge pipe running across the side walls of the collector box is connected. In such an embodiment, the side wall lying on the side of the exhaust pipes is permanently installed and only the opposite side wall is fastened to the associated separating sieve and can be pivoted therewith. If, however, a connection of the exhaust pipe along the side walls of the collector box is desired, either a bottom that runs obliquely in this longitudinal direction, at the lowest point of which the drain pipe is connected, or a bottom that runs obliquely downwards from both ends from the center of the side walls be provided, with an exhaust pipe being provided at each end. With these In both versions, either one side wall or both side walls can be fastened to the separating screen belonging to the relevant side and can be designed to be pivotable therewith.

Die Reinigungswirkung lässt sich auch dadurch weiter verbessern, dass der Boden des Sammlerkastens an einer verschwenkbaren Seitenwand befestigt ist und daher für ein günstigeres Ausströmen in der Reinigungslage mit ausgeschwenkt wird. Da der Sammlerkasten ausschliesslich aus Blechteilen mit einer glatten Oberfläche besteht, sind auch die Strömungsverhältnisse im Vergleich zu den bekannten siebartigen Wandteilen wesentlich günstiger. Die Strömungsfäden sind überwiegend zum Abzugrohr hin gerichtet.The cleaning effect can also be further improved in that the bottom of the collector box is fastened to a pivotable side wall and is therefore also pivoted out in the cleaning position for a more favorable outflow. Since the collector box consists exclusively of sheet metal parts with a smooth surface, the flow conditions are also considerably more favorable than the known sieve-like wall parts. The flow threads are mainly directed towards the exhaust pipe.

Um in dem kritischen Strömungsbereich an den unteren Enden der Trennsiebe den Ablauf der Reinigungskörper und die Reinigung durch den Spüleffekt günstiger zu gestalten, ist erfindungsgemäss vorgesehen, am unteren Ende dieser Trennsiebe je ein in den Sammlerkasten mündendes Siebteil anzuordnen, dessen Neigungswinkel zur axialen Strömungsrichtung etwa halb so gross ist wie der Neigungswinkel des zugehörigen Trennsiebes. Hierdurch ist die senkrecht auf diese abgeknickten Siebteile gerichtete Strömungskomponente halbiert und damit der Reibungswiderstand so verringert, dass ein Stau der Reinigungskörper nicht erfolgen kann. In der abgeschwenkten Spülstellung hingegen werden die abgeknickten Siebteile stärker der Strömung ausgesetzt und daher besser gereinigt.In order to make the flow of the cleaning bodies and the cleaning by the rinsing effect more favorable in the critical flow area at the lower ends of the separating sieves, it is provided according to the invention to arrange a sieve part opening into the collector box at the lower end of each of these separating sieves, whose angle of inclination to the axial flow direction is approximately half is as large as the angle of inclination of the associated separating sieve. As a result, the flow component directed perpendicularly onto these bent screen parts is halved and the frictional resistance is reduced so that the cleaning bodies cannot jam. In the swiveled-out rinsing position, on the other hand, the bent parts of the sieve are exposed to the flow more and are therefore better cleaned.

Der Gegenstand der Erfindung ist in der Zeichnung durch mehrere Ausführungsbeispiele dargestellt; es zeigt:

  • Fig. 1 einen Röhrenwärmetauscher mit einer zugeordneten Vorrichtung zum Abscheiden von Reinigungskörpern in einer schematischen Darstellung,
  • Fig. 2 die in Fig. 1 gezeigte Vorrichtung zum Abscheiden von Reinigungskörpern in einem mittleren Längsschnitt und in einem grösseren Massstab,
  • Fig. 3 den Gegenstand der Fig. 2 in einem Schnitt nach Linie III-III,
  • Fig. 4 und 5 den Gegenstand der Fig. 2 und 3 in einer Ansicht von oben in der Spül- bzw. in der Arbeitsstellung,
  • Fig. 6 einen Ausschnitt des Gegenstandes der Fig. 2 in einem grösseren Massstab,
  • Fig. 7 eine erste abgewandelte Ausführung des Sammlerkastens in einer der Fig. 3 entsprechenden Darstellung,
  • Fig. 8 eine zweite abgewandelte Ausführung des Sammlerkastens in einer der Fig. 3 entsprechenden Darstellung,
  • Fig. 9 eine dritte abgewandelte Ausführung des Sammlerkastens in einer der Fig. 3 entsprechenden Darstellung und
  • Fig. 10 den Gegenstand der Fig. 9 in einem Querschnitt nach Linie X-X, jedoch mit zwei abschwenkbaren Seitenwänden des Sammlerkastens.
The object of the invention is illustrated in the drawing by several embodiments; it shows:
  • 1 is a schematic representation of a tube heat exchanger with an associated device for separating cleaning bodies,
  • 2 shows the device shown in FIG. 1 for separating cleaning bodies in a central longitudinal section and on a larger scale,
  • 3 shows the object of FIG. 2 in a section along line III-III,
  • 4 and 5 the object of FIGS. 2 and 3 in a view from above in the washing or in the working position,
  • 6 shows a detail of the object of FIG. 2 on a larger scale,
  • 7 shows a first modified embodiment of the collector box in a representation corresponding to FIG. 3,
  • 8 shows a second modified embodiment of the collector box in a representation corresponding to FIG. 3,
  • Fig. 9 shows a third modified embodiment of the collector box in a representation corresponding to Fig. 3 and
  • Fig. 10 shows the subject of Fig. 9 in a cross section along line XX, but with two hinged side walls of the collector box.

Bei dem in Fig. 1 gezeigten Röhrenwärmetauscher 100 dient ein Flüssigkeitsstrom F als Kühlmittel, wobei die Flüssigkeit, z.B. Wasser, von einer Zuflussleitung 102 in Richtung des Pfeiles W durch ein Rohrbündel 101 in eine Abflussleitung 103 strömt. Die Kühlrohre des Rohrbündels 101 werden mit Hilfe einer Vielzahl von Reinigungskörpern B aus Schwammgummi, deren Durchmesser etwa dem Innendurchmesser dieser Kühlrohre entspricht, gereinigt, wobei die von der Flüssigkeit mitgeführten Reinigungskörper B aus der Abflussleitung 103 über eine By-Pass-Leitung 104, die mit einer Pumpe 105 und einem Sperrventil 106 versehen ist, kreisförmig in die Zuflussleitung 102 rückgeführt werden. In der By-Pass-Leitung 104 ist ein Auffangbehälter 107 angeordnet, der alle im Umlauf befindlichen Reinigungskörper B aufzunehmen vermag. Dieser besitzt ein rinnenförmiges Bodensieb 108, das über ein Sperrventil 110 mit einer Abflussleitung 109 verbunden ist. Eine während der Umlaufphase durch ein Ventil 112 geschlossene Nebenleitung 111 wird während der Einsammelphase bei geöffnetem Ventil 112 und geschlossenem Ventil 110 von der Flüssigkeit durchströmt, wobei die Reinigungskörper B im Auffangbehälter 107 gesammelt werden, bis alle im Kreislauf befindlichen Reinigungskörper im Auffangbehälter 107 aufgefangen sind.In the tubular heat exchanger 100 shown in Fig. 1, a liquid flow F serves as a coolant, the liquid, e.g. Water flows from an inflow line 102 in the direction of arrow W through a tube bundle 101 into an outflow line 103. The cooling tubes of the tube bundle 101 are cleaned with the aid of a multiplicity of cleaning bodies B made of sponge rubber, the diameter of which corresponds approximately to the inside diameter of these cooling tubes, the cleaning bodies B carried by the liquid from the drain line 103 via a by-pass line 104, which with a pump 105 and a shut-off valve 106 are circularly fed back into the inflow line 102. Arranged in the by-pass line 104 is a collecting container 107 which is able to hold all the cleaning bodies B in circulation. This has a trough-shaped bottom sieve 108, which is connected to a drain line 109 via a check valve 110. A secondary line 111 closed by a valve 112 during the circulation phase is flowed through by the liquid during the collection phase with the valve 112 open and the valve 110 closed, the cleaning bodies B being collected in the collecting container 107 until all the cleaning bodies in circulation are collected in the collecting container 107.

Um die Reinigungskörper B in der Abflussleitung 103 von dem Hauptflüssigkeitsstrom abzuscheiden und für den Kreislauf in die By-Pass-Leitung zu leiten, ist in bekannter Weise in der Abflussleitung 103 eine Abscheidevorrichtung 1 angeordnet. Bei dieser in den Fig. 2 bis 5 dargestellten Vorrichtung sind zur Abscheidung der vom Fluid mitgeführten Reinigungskörper in der Abflussleitung 103 zwei Trennsiebe 2, 3 an Schwenklagern 4', 4" angeordnet. Diese Trennsiebe 2, 3 sind an je einem halbelliptischen Rahmen 20,30 angeordnet, wobei der untere Rand jeweils in horizontaler Richtung quer in der Rohrleitung 103 liegt. Beide Trennsiebe 2, 3 befinden sich in ihrer Arbeitsstellung, in der die Reinigungskörper abgefangen werden sollen, in der in Fig. 2 mit ausgezogenen Linien gezeigten Spülstellung mittels Stellorganen 14', 14" verschwenkbar, in der die Rückfläche der Trennsiebe angeströmt wird, um an den Sieben anhaftende Schmutzteilchen, Algen u. dgl., abzuspülen.In order to separate the cleaning bodies B in the drain line 103 from the main liquid stream and to lead them into the bypass line for the circuit, a separating device 1 is arranged in the drain line 103 in a known manner. 2 to 5, two separating screens 2, 3 are arranged on pivot bearings 4 ', 4 "for separating the cleaning bodies carried by the fluid in the drain line 103. These separating screens 2, 3 are each attached to a semi-elliptical frame 20, 30, with the lower edge in each case lying transversely in the horizontal direction in the pipeline 103. Both separating screens 2, 3 are in their working position, in which the cleaning bodies are to be caught, in the rinsing position shown in solid lines in FIG 14 ', 14 "can be pivoted, in which the back surface of the separating sieves is flown to in order to adhere dirt particles, algae and the like adhering to the sieves. Like. Rinse off.

Mit ihrem unteren linienförmigen Rand münden die Trennsiebe 2, 3 in einen Sammlerkasten 5, der stirnseitig durch Stirnwände 15, 16 sowie von den Seitenwänden 7, 8 und einem Boden 11 begrenzt wird. Dieser schmale und oben offene Sammlerkasten durchragt das Abflussrohr 103 quer. Während die Seitenwand 8 fest angebracht ist; ist die Seitenwand 7 mit Hilfe von Zwischenstücken 17,18 am unteren Ende des Siebrahmens 20 vom Trennsieb 2 befestigt und mit diesem verschwenkbar. Der Boden 11 besteht bei der Ausführung nach den Fig. 2 bis 5 aus mehreren trichterförmig angeordneten Platten, die an der Seitenwand 7 befestigt sind und mit dieser verschwenken. An der tiefsten Stelle der beiden Trichter befinden sich zwei Abzugrohre 6', 6". Je nach Grösse der Vorrichtung besteht aber auch die Möglichkeit, nur einen Trichter mit einem Abzugrohr oder eine beliebighe Anzahl Trichter mit je einem zugeordneten Abzugrohr vorzusehen; die Bauhöhe kann daher bedarfsweise sehr niedrig gehalten werden.With their lower linear edge, the separating screens 2, 3 open into a collector box 5, which is delimited on the end face by end walls 15, 16 and by the side walls 7, 8 and a bottom 11. This narrow and open at the top The collector box extends transversely through the drain pipe 103. While the side wall 8 is fixed; the side wall 7 is fastened with the aid of intermediate pieces 17, 18 at the lower end of the sieve frame 20 from the separating sieve 2 and can be pivoted therewith. The bottom 11 in the embodiment according to FIGS. 2 to 5 consists of several funnel-shaped plates which are fastened to the side wall 7 and pivot with it. At the lowest point of the two funnels there are two discharge pipes 6 ', 6 ". Depending on the size of the device, there is also the possibility of providing only one funnel with one discharge pipe or any number of funnels with an associated discharge pipe each; the overall height can therefore vary if necessary, be kept very low.

Die Seitenwände 7, 8 bestehen vorzugsweise aus unperforierten Blechen, die aber wahlweise auch perforiert sein können.The side walls 7, 8 preferably consist of non-perforated metal sheets, which, however, can optionally also be perforated.

Bei der Ausführung nach den Fig. 2 bis 6 bilden die Seitenwand 8 und die Endwände 15, 16 eine feste Einheit mit Abzugrohren 6', 6", während die mit dem Boden 11 verbundene Seitenwand 7 von dieser Einheit lösbar ist, wobei letztere am Rahmen 20 mit Hilfe der bei 19 angeschraubten Zwischenstücke 17, 18 befestigt ist. Beim Drehen der beiden Siebe 2, 3 in deren Spülstellung werden die Seitenwände 7 und der Boden 11 von der Mittelebene M weggeschwungen, wodurch der Kasten geöffnet wird und dessen Wände ebenso wie dessen Boden von dem durch das Abflussrohr 103 fliessende Wasser beaufschlagt werden. Der Wasserstrom fliesst gegen die rückwärtigen Flächen der nach unten divergierenden Teile der Siebe 2, 3 und durchströmt deren Zwischenräume in der umgekehrten Richtung, so dass vorhandene angelagerte Feststoffteilchen weggeschwemmt werden.2 to 6, the side wall 8 and the end walls 15, 16 form a fixed unit with exhaust pipes 6 ', 6 ", while the side wall 7 connected to the base 11 is detachable from this unit, the latter on the frame 20 is fastened with the aid of the intermediate pieces 17, 18 screwed in at 19. When the two screens 2, 3 are rotated into their rinsing position, the side walls 7 and the bottom 11 are swung away from the central plane M, whereby the box is opened and its walls as well as the latter Soil from which water flowing through the drain pipe 103 is applied The water flow flows against the rear surfaces of the downwardly diverging parts of the sieves 2, 3 and flows through their interstices in the opposite direction, so that any accumulated solid particles are washed away.

Die Rostteile der Siebe 2, 3 sind durch Querstangen 12, 13 verbunden und, wie Fig. 6 zeigt, etwa in Höhe ihrer Schwenkachsen 4', 4" in zwei Abschnitte 21, 22 und 31, 32 unterteilt, welche obere und untere Siebteile bilden, die verschiedene Winkel a und β mit der Mittelebene M in ihrer Arbeitsstellung einschliessen, wobei a vorzugsweise zwischen 20° und 30° liegt und vorzugsweise etwa 2ß beträgt. So divergieren die oberen Siebteile 21 und 31 mit einem grösseren spitzen Winkel 2 a als die unteren Siebteile 22,32, welche einen spitzen Winkel 2ß einschliessen.The grate parts of the screens 2, 3 are connected by crossbars 12, 13 and, as shown in FIG. 6, approximately at the level of their pivot axes 4 ', 4 "divided into two sections 21, 22 and 31, 32 which form upper and lower screen parts , which include different angles a and β with the central plane M in their working position, a preferably being between 20 ° and 30 ° and preferably approximately 2. The upper sieve parts 21 and 31 thus diverge with a larger acute angle 2 a than the lower ones Sieve parts 22,32, which form an acute angle 2ß.

Hierdurch ist die senkrecht auf die abgeknickten Abschnitte 21, 31 gerichtete Strömungskomponente gegenüber der senkrecht auf die Hauptsiebfläche gerichteten Strömungskomponente halbiert. In der Betriebsstellung ist dadurch der Reibungswiderstand an den abgeknickten Siebabschnitten kleiner mit der Folge, dass die Reinigungskörper ohne Stau gleichmässig in den Sammlerkasten strömen. In der in Fig. 2 gestrichelt dargestellten Spülstellung hingegen werden die abgeknickten Siebabschnitte 21, 31 von ihrer Rückseite stärker angeströmt und daher besser gereinigt. Wenngleich in Fig. 6 der Neigungswinkel β etwa halb so gross ist wie der Neigungswinkel α, kann mit einem anderen kleineren Neigungswinkel ß die gleiche Wirkung erzielt werden, sofern die senkrechte Strömungskomponente ausreichend klein ist, um den Reibungswiderstand entsprechend zu verringern.As a result, the flow component directed perpendicular to the bent sections 21, 31 is halved compared to the flow component directed perpendicular to the main screen surface. In the operating position, the frictional resistance at the kinked sieve sections is smaller, with the result that the cleaning bodies flow evenly into the collector box without jam. In contrast, in the rinsing position shown in dashed lines in FIG. 2, the bent screen sections 21, 31 are subjected to a stronger flow from their rear side and are therefore better cleaned. Although the angle of inclination β is approximately half as large as the angle of inclination α in FIG. 6, the same effect can be achieved with another smaller angle of inclination β, provided the vertical flow component is sufficiently small to reduce the frictional resistance accordingly.

Die Ausführung nach den Fig. 2 bis 6 kann auch dadurch abgewandelt werden, dass der obere Bereich des schräg verlaufenden Bodens 11 zwischen den Siebabschnitten 22, 32 angeordnet und dabei dem V-förmigen Querschnitt dieses Siebabschnittes angepasst ist, um die Bauhöhe weiterhin zu reduzieren.The embodiment according to FIGS. 2 to 6 can also be modified in that the upper region of the sloping bottom 11 is arranged between the sieve sections 22, 32 and is adapted to the V-shaped cross section of this sieve section in order to further reduce the overall height.

In Fig. 7 ist eine erste abgewandelte Ausführung des Sammlerkastens 5a gezeigt, deren Boden eine einfache Rinne bildet, wobei das eine Abzugrohr 6a zwischen den Stirnwänden 15a, 16a quer zur Längsachse des Sammlerkastens verläuft. Doch kann das Abzugrohr auch in Längsrichtung an den Sammlerkasten angeschlossen sein.FIG. 7 shows a first modified embodiment of the collector box 5a, the bottom of which forms a simple channel, the one exhaust pipe 6a running between the end walls 15a, 16a transverse to the longitudinal axis of the collector box. However, the exhaust pipe can also be connected to the collector box in the longitudinal direction.

Bei der in Fig. 8 dargestellten zweiten abgewandelten Ausführung eines Sammlerkastens 5b verläuft der Boden 11 b von einer hohen Lage an einem Ende schräg nach unten in eine tiefere Lage am anderen Ende, an dem ein Abzugrohr 6b in Längsrichtung zum Sammlerkasten, d.h. am Stirnende 15b angeschlossen ist. Diese Ausbildung lässt sich wiederum zu der in Fig. 9 gezeigten Form abwandeln, bei der von einer mittleren hohen Stellung aus zwei Bodenteile 11c zu den Stirnwänden 15c, 16c hin schräg nach unten verlaufen und an den Stirnwänden in je ein Abzugrohr 6c', 6c" münden.In the second modified embodiment of a collector box 5b shown in Fig. 8, the bottom 11b runs obliquely downwards from a high position at one end to a lower position at the other end, on which a discharge pipe 6b extends in the longitudinal direction to the collector box, i.e. is connected to the front end 15b. This configuration can in turn be modified to the form shown in FIG. 9, in which, from a medium high position, two base parts 11c run obliquely downwards towards the end walls 15c, 16c and in each case an exhaust pipe 6c ', 6c "on the end walls. flow out.

Sofern die Abzugrohre nicht seitlich, sondern an den Stirnenden des Sammlerkastens 5c anschliessen, können, wie Fig. 10 zeigt, beide Seitenwände 7c, 8c an dem der betreffenden Seite zugehörigen Trennsieb 3 bzw. 2 befestigt und mit diesen veschwenkbar sein. Der Spüleffekt kann hierdurch weiter verbessert werden. Der Boden 11c kann dabei an dem einen oder dem anderen Trennsieb 7c oder 8c befestigt sein.If the discharge pipes do not connect laterally, but rather to the ends of the header box 5c, as shown in FIG. 10, both side walls 7c, 8c can be attached to the separating screen 3 or 2 associated with the relevant side and pivoted with them. This can further improve the rinsing effect. The bottom 11c can be attached to one or the other separating sieve 7c or 8c.

Da der Sammlerkasten aus glattflächigen Blechteilen besteht, wird eine Verschmutzung durch Anlagerung von Schmutzteilchen, Algen u. dgl. erheblich herabgesetzt. Während bei den bekannten Vorrichtungen der Siebkasten mit seinen Bauteilen schneller verschmutzt als die beiden Hauptsiebe, ist erfindungsgemäss eine Reinigung nur in Abhängigkeit von der langsamer erfolgenden Verschmutzung der Trennsiebe erforderlich. Findet eine solche Reinigung durch Verschwenken der Trennsiebe 2, 3 in die Spülstellung statt, wird der Sammlerkasten 5 zwangsläufig geöffnet und damit automatisch mitgereinigt.Since the collector box is made of sheet metal parts with a smooth surface, contamination is caused by the accumulation of dirt particles, algae and the like. Like. Significantly reduced. While in the known devices the sieve box and its components get dirty faster than the two main sieves, cleaning according to the invention is only necessary as a function of the slower contamination of the separating sieves. If such cleaning takes place by pivoting the separating sieves 2, 3 into the rinsing position, the collector box 5 is inevitably opened and thus also automatically cleaned.

Claims (7)

1. An apparatus for separating cleaning agents from a fluid discharging from a tubular heat exchanger, the apparatus comprising a casing flowed through axially by the fluid and two semi- elliptical separating screens which are pivotable round an axis transverse of the flow direction and which when in their inclined screening position have their bottom ends extending into a header box which extends transversely through the casing, is open at the top and has at least one pivoted side wall and one or more draw-off tubes, characterised in that at least one of the header box side walls (7, 8) extending parallel to the bottom edge of the separating screens (2, 3) is secured to and pivotable together with the associated separating screen.
2. An apparatus according to claim 1, characterised in that the base (11) of the header box (5) comprises one or more funnels having connected to their lowest parts one draw-off tube (6', 6") each which extends transversely of the header box side walls (7, 8).
3. An apparatus according to claim 1, characterised in that the header box (5) has a base (11c) which extends inclinedly along the side wall (8b) and which has connected to its lowest part a draw-off tube (6b) extending in the same direction.
4. An apparatus according to claim 1, characterised in that the base (11 c) of the header box (5c) extends from the centre of the side walls (8c) towards both ends inclinedly downwards and terminating at each end in a draw-off tube (6c', 6c").
5. An apparatus according to claim 3 or 4, characterised in that the two side walls (7c, 8c) are secured to and pivotable together with the separating screen (2, 3) associated with the particular side concerned.
6. An apparatus according to any of claims 1 to 5, characterised in that the base (11, 11a, 11b, 11 c) of the header box (5, 5a, 5b, 5c) is secured to a pivoted side wall (7, 7c).
7. An apparatus according to any of claims 1 to 6, characterised in that a bottom screen part (22, 32) extending into the header box (5) is disposed atthe bottom end of each separating screen (2,3) and the inclination angle β of such part of the axial flow direction is approximately half the inclination angle a of the top screen part (21, 31) of the associated screen (2, 3).
EP80103438A 1979-08-14 1980-06-20 Device for separating cleaning bodies from a fluid flowing out of a shell-and-tube heat exchanger Expired EP0026261B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80103438T ATE2197T1 (en) 1979-08-14 1980-06-20 DEVICE FOR SEPARATING CLEANING PARTS FROM A FLUID OUTLET FROM A TUBE HEAT EXCHANGER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/066,380 US4350202A (en) 1979-08-14 1979-08-14 Extractor for recirculating cleaning bodies in a fluid-circulation system
US66380 1987-06-25

Publications (2)

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EP0026261A1 EP0026261A1 (en) 1981-04-08
EP0026261B1 true EP0026261B1 (en) 1983-01-12

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US (1) US4350202A (en)
EP (1) EP0026261B1 (en)
JP (1) JPS5926240B2 (en)
AT (1) ATE2197T1 (en)
AU (1) AU535921B2 (en)
CA (1) CA1123421A (en)
DE (1) DE3061612D1 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57180475A (en) * 1981-04-30 1982-11-06 Riideruutehinitsuku Gmbh Device for cleaning inner surface of pipe or tube
JPS57180476A (en) * 1981-04-30 1982-11-06 Riideruutehinitsuku Gmbh Device for cleaning inner surface of pipe or tube
DE3211142C2 (en) * 1982-03-26 1985-01-10 Taprogge GmbH, 4000 Düsseldorf Screening device for the cooling water flow of a tubular heat exchanger, in particular a power plant heat exchanger
DE3214929C2 (en) * 1982-04-22 1984-03-01 Taprogge Gesellschaft mbH, 4000 Düsseldorf Sieve device for separating cleaning bodies from the cooling water flow behind a tubular heat exchanger
FR2528331A1 (en) * 1982-06-09 1983-12-16 Technos Et Cie IMPROVEMENTS IN DEVICES FOR SEPARATING FLUIDS THAT CARRY THEM, THE CLEANING BODIES OF TUBE EXCHANGERS
DE3303053C1 (en) * 1983-01-29 1983-12-29 Taprogge Gesellschaft mbH, 4000 Düsseldorf Device for extracting cleaning balls from the cooling water flow behind power plant condensers
DE3406982C1 (en) * 1984-02-25 1985-08-01 Taprogge GmbH, 5802 Wetter Lock for cleaning bodies
EP0305575A1 (en) * 1987-09-03 1989-03-08 Bauko Baukooperation Gmbh Filtering apparatus
US5010950A (en) * 1989-09-13 1991-04-30 Water Services Of America, Inc. Ball strainer for circulating ball cleaning system
US5266169A (en) * 1992-06-03 1993-11-30 Praxair Technology, Inc. Apparatus for separating and recycling cleaning particles for cleaning furnace tubes
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
US5980645A (en) * 1997-06-27 1999-11-09 Price; Benjamin W. Pipeline processing assembly
US6170493B1 (en) 1997-10-31 2001-01-09 Orlande Sivacoe Method of cleaning a heater
US6569255B2 (en) 1998-09-24 2003-05-27 On Stream Technologies Inc. Pig and method for cleaning tubes
BRPI0519128B1 (en) * 2004-12-20 2017-09-26 Shell Internationale Research Maatschappij B. V. SYSTEM AND METHOD FOR MAINTAINING PRODUCTION DRAINAGE IN A SUBMARINE PIPE
AU2006309322B2 (en) * 2005-01-12 2009-07-09 Shell Internationale Research Maatschappij B.V. Methods for transporting hydrocarbons
US20080289659A1 (en) * 2007-05-25 2008-11-27 Brushtech, Inc. Cleaning kit for removing residual matter from interior of a narrow necked container
US7975758B2 (en) * 2008-05-27 2011-07-12 Chung-Yueh Ho Condenser tubes cleaning system
CN102000679B (en) * 2010-09-30 2012-07-25 中国科学院海洋研究所 Method for cleaning inner wall of pipeline type photobioreactor pipe
US9101205B2 (en) 2013-03-11 2015-08-11 Brushtech, Inc. Twisted wire brush and method of making
CN103808201B (en) * 2014-03-05 2015-10-28 蒋平锁 Condenser ball cleaning multiple spot concentrates service system
US9955777B2 (en) 2015-08-31 2018-05-01 Brushtech, Inc. Twisted wire brush and method making
US10371470B2 (en) * 2015-11-12 2019-08-06 DOOSAN Heavy Industries Construction Co., LTD Condenser tube cleaning apparatus
CN110925958B (en) * 2018-09-20 2021-07-27 青岛海尔智能技术研发有限公司 Air conditioner and cleaning control method
RU2721468C1 (en) * 2019-07-12 2020-05-19 Общество С Ограниченной Ответственностью "Созидание" (Ооо "Созидание") Ball trapping devices with forced cleaning for ball cleaning system of heat-exchange condenser tubes (versions)
CN114199074A (en) * 2021-11-12 2022-03-18 江阴金童石化装备有限公司 Heat exchanger rust removal system and rust removal process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE894699C (en) * 1951-10-26 1953-10-26 Josef Dipl-Ing Taprogge Process for the self-cleaning of surface capacitors
AT212339B (en) * 1957-07-23 1960-12-12 Josef Dipl Ing Taprogge Process for the self-cleaning of tubes in tubular heat exchangers and device for its implementation
US3021117A (en) * 1957-07-23 1962-02-13 Taprogge Josef Self-cleaning heat-exchanger
DE2612917C2 (en) * 1976-03-26 1978-06-01 Ludwig Taprogge, Reinigungsanlagen Fuer Roehren-Waermeaustauscher, 4000 Duesseldorf Device for branching off cleaning elements
DE2818006C2 (en) * 1978-04-25 1980-04-24 Ludwig Taprogge, Reinigungsanlagen Fuer Roehren-Waermeaustauscher, 4000 Duesseldorf Tubular heat exchanger with a cleaning device
FR2438814A1 (en) * 1978-10-11 1980-05-09 Technos IMPROVEMENTS IN THE CLEANING OF TUBE HEAT EXCHANGERS
US4234993A (en) * 1979-05-30 1980-11-25 Kintner Edwin K Condenser cleaning system using sponge balls

Also Published As

Publication number Publication date
AU535921B2 (en) 1984-04-12
ATE2197T1 (en) 1983-01-15
DE3061612D1 (en) 1983-02-17
US4350202A (en) 1982-09-21
AU5934280A (en) 1981-02-19
JPS5627896A (en) 1981-03-18
JPS5926240B2 (en) 1984-06-25
CA1123421A (en) 1982-05-11
EP0026261A1 (en) 1981-04-08

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