EP1098158B1 - Verwaltungsvorrichtung für in einem Wärmetauscher zirkulierenden Festkörper - Google Patents

Verwaltungsvorrichtung für in einem Wärmetauscher zirkulierenden Festkörper Download PDF

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Publication number
EP1098158B1
EP1098158B1 EP00403002A EP00403002A EP1098158B1 EP 1098158 B1 EP1098158 B1 EP 1098158B1 EP 00403002 A EP00403002 A EP 00403002A EP 00403002 A EP00403002 A EP 00403002A EP 1098158 B1 EP1098158 B1 EP 1098158B1
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EP
European Patent Office
Prior art keywords
pipe
heat exchanger
installation according
flow
control installation
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 - Lifetime
Application number
EP00403002A
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English (en)
French (fr)
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EP1098158A1 (de
Inventor
Philip Jackson
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.)
E Beaudrey et Cie SA
Original Assignee
E Beaudrey et Cie SA
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Filing date
Publication date
Application filed by E Beaudrey et Cie SA filed Critical E Beaudrey et Cie SA
Publication of EP1098158A1 publication Critical patent/EP1098158A1/de
Application granted granted Critical
Publication of EP1098158B1 publication Critical patent/EP1098158B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 present invention relates generally to exchangers heat, and, for example, tubular heat exchangers forming condensers, which are continuously cleaned by solid elements, in practice in the form of a ball and made for example of foam rubber, systematically put into circulation for this purpose in one of the flows concerned.
  • the present invention relates more particularly to the management of the elements cleaning solids thus used.
  • this management involves, basically, on the one hand, to avoid that, with the flow that carries them, the solid cleaning elements in question are evacuated to the sewer, the interposition, on the outlet pipe of the heat exchanger, of means of interception specific to their detention, and, on the other hand, recycling, towards the inlet pipe of the heat exchanger, solid elements of cleaning thus retained by these means of interception.
  • this management device For its proper functioning, this management device needs to be crossed by a given flow flow.
  • a management facility for solid elements has been proposed. cleaning circulating in a heat exchanger-for cleaning thereof, of the kind comprising means of interception which, specific to the restraint of solid cleaning elements in circulation, are interposed on the pipeline outlet of the heat exchanger, a return line, which recycles to the inlet pipe of the heat exchanger a return flow containing the solid cleaning elements retained by the interception means, and, arranged on this return pipe, a device for managing these elements cleaning solids, installation in which between the means of interception and the management device, is interposed, on the return line, a concentration device dividing the corresponding return flow in half parts, namely, a first part, or main part, which contains normally all solid cleaning items, and that is directed to the management device, and a second part, or derived part, which is normally free of any solid cleaning material, and which is removed from the management system, the return line belonging to means of circulation which are capable of generating, locally, through means of interception, circulation against the current.
  • the management device is spared part of the flow rate return concerned, while normally seeing all the elements scroll cleaning solids to manage.
  • the concentration advantageously makes it possible to systematically recreate the input of the management device, determined flow conditions, which correspond to its normal operating conditions.
  • the subject of the present invention is a installation of the above kind characterized by the fact that the means of circulation include suction means adapted to resume, for their recycling, in accordance with the means of interception, the solid elements of cleaning retained by them, the concentration device being shaped general cylindrical and comprising a grid mounted to pivot about an axis that it presents in its central part so that it can occupy at least two extreme positions, a so-called “cleaning” position in which it leaves free passage of the main part of the return flow and intervenes in the passage of the derivative part of said flow, and a position known as "excluding cleaning” in which it is interposed in the passage of the main part and the part derived from the return flow.
  • the circulation means comprise a pipe inlet established between the heat exchanger outlet pipe and its inlet pipe and connected to the suction of a pump which discharges into the concentration device.
  • the management installation comprises a recycling which directs the derivative part of the return flow on the pipeline of heat exchanger outlet; the recycling line connects to the supply line via the concentration device.
  • Concentrating devices with tilting grids have already been proposed; more specifically, there is a concentration device in which two grids arranged in a V are pivotally mounted about an axis which they present in their central part and can occupy at least two positions in V, the tip of the V being at the bottom for one of these positions and at the top for the other ; such a concentration device has the disadvantage that cleaning elements are lost during said recovery operation elements.
  • the concentration device is connected to the recycling through a filter; thus, any loss of cleaning element is avoided.
  • the filter comprises a tubular wall which crosses axially sealing an enclosure, the part of the tubular wall located at the interior of the enclosure being provided with perforations; the tubular wall of the filter communicates with the concentration device via a valve.
  • the tubular wall of the filter communicates with the outside by through a valve.
  • the recycling pipe is connected to the wall external of the enclosure; the recycling line can be closed by a valve at right of its connection to the outer wall of the enclosure.
  • the upper part of the enclosure is provided with a vent closable.
  • a heat exchanger and, for example, a heat exchanger forming condenser, which, as shown by the arrows F1, is crossed by a flow coolant, in this case water, on the one hand, a inlet pipe 11, and, on the other hand, an outlet pipe 12.
  • a flow coolant in this case water
  • Such a heat exchanger 10 is well known in itself, and does not not directly related to the present invention, it will not be described here.
  • tubular heat exchanger which, by example, is of the type succinctly described in document FR-A-2 716,530 mentioned above.
  • filtration means 13 are interposed on the inlet pipe 11, by means of a cuff 14.
  • these solid cleaning elements are systematically injected into the inlet pipe 11, downstream of the filtration means 13, to be driven by the incoming flow.
  • a wheel 20 which closes the cuff 15 transversely and has, radially, between its axis and its periphery, a filter panel 21, which, under the control of means 22, is rotatably mounted about its axis, and, on the other hand, a horn 23, which is arranged in line with wheel 20, upstream in the direction of outgoing flow through outlet pipe 12, facing the panel filter 21 of the wheel 20.
  • the management installation 18 comprises circulation means which are suitable for locally generating, through interception means 17, at right of the fallopian tube 23, a circulation against the current, and which comprise, themselves, to do this, on the one hand, an inlet pipe 25, connecting more precisely at the horn 23, arranged upstream of the means interception 17, and, on the other hand, a return line 28, which recycles to the inlet pipe 11 of the heat exchanger 10 a return flow containing the solid cleaning elements retained by these means interception 17, and on which is arranged a device 26 for managing these solid cleaning elements, in particular for checking the number of these, of the elimination of those whose dimensions are no longer sufficient, and a replenishment of solid cleaning elements new.
  • a concentration device 27 capable of detecting the concentration of the corresponding return flow of solid cleaning elements.
  • a device for concentration 27 dividing the corresponding return flow into two parts at know, as shown schematically by the arrows P1, P2 in the figure, a part P1, or main part, which contains all the solid cleaning elements in traffic, and which is directed to the management device 26, and a second part P2, or derived part, which is devoid of any solid element of cleaning, and which is moved away from this management device 26 and directed towards the outlet pipe 12 of the heat exchanger 10 via a line 29 called recycling; more precisely, in this form of implementation, this recycling line 29 is connected to the outlet sleeve 15; more specifically, again, the circulation means comprising a pump 24 of which the suction is connected to this inlet pipe 25, the recycling pipe 29 connects downstream of this pump 24 to the concentration device 27 itself connected to the pump outlet 24.
  • the main part P1 corresponds to a minority of the flow of back processed, and the derivative part P2 to a majority of it.
  • the main part P1 is at relatively low speed, and the derived part P2 at relatively high speed.
  • the return pipe 28 dessert in the cuff 14, nozzles 32 which provide injection, in the incoming flow, solid cleaning elements to put back in or put in circulation in it, and which, preferably, are oriented against the current.
  • the management device 26 does not fall under the present invention, it does not will not be described in detail here. It will simply be noted that the management 26 includes two compartments separated by a grid 39, a first compartment 41 into which the second section 37 opens and a second compartment 42.
  • the two compartments 41 and 42 are connected, inter alia, to a distributor 43 for supplying the nozzles 32, the first 41 via a valve 44, the second 42 by means of a non-return valve 45.
  • a pipe outlet 33 connected to the recycling line 29, therefore to the outlet line 12 of the heat exchanger 10, for evacuation of the debris retained by these filtration means 13.
  • the device concentration 27 is generally cylindrical and has a grid 35, for example made up of bars whose spacing is less than the diameter solid cleaning elements; grid 35 is pivotally mounted around of an axis which it presents in its central part so that it can occupy at least two extreme positions, a so-called “cleaning” position, shown in solid lines in the figure and in which it leaves free the communication between the arrival pipe 25 and the management device 26, that is to say the passage of the main part P1 of the return flow, while it is interposed in the passage of the derived part P2 of said flow, and a position called “excluding cleaning", shown in dotted lines in the figure, in which it intervenes both in the passage of the main part P1 and in that of the derivative part P2, that is to say over the entire return flow.
  • the device for concentration 27 is connected to the recycling line 29 via a filter 50.
  • the filter 50 comprises a tubular wall 51 which passes axially through a sealed enclosure 52; the tubular wall 51 communicates, on one side, with the lower part of the concentration device 27, via a valve 53, and, on the other side, with the outside, also via a valve 54; the part of the tubular wall 51 located inside the enclosure 52 is provided with perforations; the conduct of recycling 29 is connected to the external wall of the enclosure 52, to the part lower thereof, to the right of which it is closable by a valve 55; the upper part of the enclosure 52 carries a closable vent 56.
  • a non-return valve 46 and a valve 47 are also arranged on the recycling line 29.
  • valves 31 and 47 are open; they don't Indeed, it was only planned to facilitate certain maintenance operations.
  • the grid 35 of the concentration device 27 is in the "cleaning" position shown in FULL line, valves 53 and 55 are open, valves 44 and 54 are closed, the vent 56 is closed, the pump 24 turns and the pump 30 is at rest.
  • the cleaning elements are stored upstream of the grid 39 and the valve 44 of the management device 26; the flow taken by the pump 24 returns to the outlet pipe 12 via the concentration device 27, the filter 50 and the recycling line 29.
  • the solid cleaning elements therefore pass continuously the heat exchanger 10 and, retained by the interception means 17 at the out of it, are sucked by pump 24 and recycled afterwards, successively, their passage through the concentration device 27, which separates from most of the corresponding flow, and their passage through the management device 26, which processes it.
  • valve 44 of the management device 26 is closed, where the cleaning elements are stopped by its grid 39.
  • the installation according to the invention is simple, light and economical, and whatever the operation of managing the elements of none of these can be lost.
  • the concentration device 27 the flow conditions at the input of the management device 26 are well determined, and they correspond to the normal operating conditions of this management 26.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Claims (11)

  1. Verwaltungsanlage für feste Reinigungselemente, die in einem Wärmetauscher (10) für dessen Reinigung umlaufen, umfassend Abfangmittel (17), die für die Zurückhaltung der in Umlauf befindlichen festen Reinigungselemente geeignet sind und in die Austrittsleitung (12) des Wärmetauschers (10) eingesetzt sind, eine Rückleitung (28), die zur Eintrittsleitung (11) des Wärmetauschers (10) einen Rückstrom rezykliert, der die durch die Abfangmittel (17) zurückgehaltenen festen Reinigungselemente enthält, und eine in dieser Rückleitung (28) angeordnete Vorrichtung (26) zur Verwaltung dieser festen Reinigungselemente, wobei in dieser Anlage zwischen den Abfangmitteln (17) und der Verwaltungsvorrichtung (26) in der Rückleitung (28) eine Konzentrationsvorrichtung (27) eingesetzt ist, die den entsprechenden Rückstrom in zwei Teile (P1, P2) teilt, und zwar einen ersten Teil (P1) oder Hauptteil, der normalerweise alle festen Reinigungselemente enthält und der auf die Verwaltungsvorrichtung (26) zu gelenkt wird, und einen zweiten Teil (P2) oder abgezweigten Teil, der normalerweise frei von jedem festen Reinigungselement ist und der von der Verwaltungsvorrichtung (26) entfernt wird, wobei die Rückleitung (28) zu Umlaufmitteln gehört, die geeignet sind, örtlich durch die Abfangmittel (17) hindurch einen Gegenstromumlauf zu erzeugen, dadurch gekennzeichnet, daß die Umlaufmittel Saugmittel umfassen, die dafür ausgelegt sind, auf Höhe der Abfangmittel die von diesen zurückgehaltenen festen Reinigungselemente für ihre Rezyklierung aufzunehmen, wobei die Konzentrationsvorrichtung (27) allgemein zylindrisch ist und ein Gitter (35) aufweist, das um eine Achse, die es in seinem zentralen Bereich aufweist, verschwenkbar ist, so daß es mindestens zwei Endstellungen einnehmen kann, und zwar eine Stellung "Reinigung", in der es für den Hauptteil (P1) des Rückstroms einen freien Durchgang läßt und sich in den Durchgang des abgezweigten Teils (P2) dieses Stroms einschaltet, und eine Stellung "Reinigung aus", in der es sich in den Durchgang des Hauptteils (P1) und des abgezweigten Teils (P2) des Rückstroms einschaltet.
  2. Verwaltungsanlage nach Anspruch 1, dadurch gekennzeichnet, daß die Umlaufmittel eine Zuleitung (25) umfassen, die zwischen der Austrittsleitung (12) des Wärmetauschers (10) und seiner Eintrittsleitung (11) angeordnet ist und mit der Saugseite einer Pumpe (24) verbunden ist, die in die Konzentrationsvorrichtung (27) fördert.
  3. Verwaltungsanlage nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß sie eine Rezyklierungsleitung (29) aufweist, die den abgezweigten Teil (P2) des Rückstroms zur Austrittsleitung (12) des Wärmetauschers (10) lenkt.
  4. Verwaltungsanlage nach Anspruch 3, dadurch gekennzeichnet, daß die Rezyklierungsleitung (29) an die Zuleitung (25) über die Konzentrationsvorrichtung (27) angeschlossen ist.
  5. Verwaltungsanlage nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, daß die Konzentrationsvorrichtung (27) mit der Rezyklierungsleitung (29) über ein Filter (50) verbunden ist.
  6. Verwaltungsanlage nach Anspruch 5, dadurch gekennzeichnet, daß das Filter (50) eine rohrförmige Wand (51) aufweist, die eine Kammer (52) unter Abdichtung axial durchquert, wobei der im Inneren der Kammer (52) gelegene Teil der rohrförmigen Wand (51) mit Perforationen versehen ist.
  7. Verwaltungsanlage nach Anspruch 6, dadurch gekennzeichnet, daß die rohrförmige Wand (51) des Filters (50) mit der Konzentrationsvorrichtung (27) über ein Ventil (53) verbunden ist.
  8. Verwaltungsanlage nach einem der Ansprüche 6 oder 7, dadurch gekennzeichnet, daß die rohrförmige Wand (51) des Filters (50) über ein Ventil (54) mit dem Äußeren in Verbindung ist.
  9. Verwaltungsanlage nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß die Rezyklierungsleitung (29) an die Außenwand der Kammer (52) angeschlossen ist.
  10. Verwaltungsanlage nach Anspruch 9, dadurch gekennzeichnet, daß die Rezyklierungsleitung (29) durch ein Ventil (55) auf Höhe ihres Anschlusses an die Außenwand der Kammer (52) verschließbar ist.
  11. Verwaltungsanlage nach einem der Ansprüche 6 bis 10, dadurch gekennzeichnet, daß der obere Teil der Kammer (52) mit einem verschließbaren Entlüftungsloch (52) versehen ist.
EP00403002A 1999-11-04 2000-10-27 Verwaltungsvorrichtung für in einem Wärmetauscher zirkulierenden Festkörper Expired - Lifetime EP1098158B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9913813 1999-11-04
FR9913813A FR2800864B1 (fr) 1999-11-04 1999-11-04 Installation de gestion des elements solides mis en circulation dans un echangeur de chaleur pour le nettoyage de celui-ci

Publications (2)

Publication Number Publication Date
EP1098158A1 EP1098158A1 (de) 2001-05-09
EP1098158B1 true EP1098158B1 (de) 2004-05-06

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EP00403002A Expired - Lifetime EP1098158B1 (de) 1999-11-04 2000-10-27 Verwaltungsvorrichtung für in einem Wärmetauscher zirkulierenden Festkörper

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Country Link
US (1) US6530427B1 (de)
EP (1) EP1098158B1 (de)
JP (1) JP2001165594A (de)
AT (1) ATE266185T1 (de)
DE (1) DE60010410T2 (de)
ES (1) ES2220367T3 (de)
FR (1) FR2800864B1 (de)

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* Cited by examiner, † Cited by third party
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FR2824629B1 (fr) * 2001-05-11 2003-08-08 Beaudrey & Cie Installation de recuperation des debris arretes par un filtre a l'entree d'un echangeur de chaleur
US6945316B2 (en) * 2002-11-05 2005-09-20 Taprogge Gmbh System for cleaning tubes of heat exchangers and cleaning bodies therefor
US7975758B2 (en) * 2008-05-27 2011-07-12 Chung-Yueh Ho Condenser tubes cleaning system
FR3101411A1 (fr) * 2019-09-30 2021-04-02 Eugene B Installation de nettoyage d’échangeur thermique à efficacité améliorée et procédé associé

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Also Published As

Publication number Publication date
FR2800864B1 (fr) 2002-03-22
JP2001165594A (ja) 2001-06-22
US6530427B1 (en) 2003-03-11
EP1098158A1 (de) 2001-05-09
DE60010410D1 (de) 2004-06-09
ES2220367T3 (es) 2004-12-16
FR2800864A1 (fr) 2001-05-11
ATE266185T1 (de) 2004-05-15
DE60010410T2 (de) 2005-05-19

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