US3215195A - Cleaning installation for heatexchangers - Google Patents

Cleaning installation for heatexchangers Download PDF

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Publication number
US3215195A
US3215195A US263283A US26328363A US3215195A US 3215195 A US3215195 A US 3215195A US 263283 A US263283 A US 263283A US 26328363 A US26328363 A US 26328363A US 3215195 A US3215195 A US 3215195A
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United States
Prior art keywords
cooling water
line
cleaning bodies
sluice
cleaning
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Expired - Lifetime
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US263283A
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English (en)
Inventor
Treplin Friedrich Wilhelm
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Taprogge Ludwig Reinigungsanlagen
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Taprogge Ludwig Reinigungsanlagen
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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 present invention relates to a method for circulating cleaning bodies used in connection with cleaning tubetype heat exchangers as well as to the apparatus suitable for use in carrying out the method. More particularly, the present invention relates to a method and apparatus for intercepting and re-circulating the elastic cleaning bodies which are used for cleaning the pipes or tubes of heat exchangers, especially condensers, and which are circulated by means of the cooling Water from the cooling water inlet, through the heat exchanger, the cooling water outlet and a connecting line from the cooling water outlet to the cooling water inlet.
  • the cleaning bodies intercepted by the sieve installations are thereupon returned by way of connecting lines between the cooling water inlet and the cooling water outlet and are re-introduced into the cooling Water inlet together with a partial stream of the heated cooling water by means of separate pumps.
  • the US. Patents Nos. 2,801,824 and 3,021,117 to L. Taprogge are representative of such prior art arrangements.
  • the present invention aims at realizing a return system for the cleaning bodies in a cleaning system for tubetype heat-exchangers, and especially of condensers, by
  • Patented Nov. 2, 1965 means of cleaning bodies carried within the circulatory system from the cooling water inlet through the heatexchanger to the cooling water outlet without thermodynamic disadvantages as well as at a simplification of such return system.
  • the present invention is concerned with a method and apparatus for returning the cleaning bodies in connection with the cleaning operation of tube-type heat-exchangers, especially condensers, by means of cleaning bodies conducted in the water circulation by way of the cooling water inlet, the heat-exchanger, the cooling water outlet and a connecting line.
  • the present invention essentially consists in conducting the cleaning bodies intercepted in the usual manner by means of a sieve installation within the cooling water outlet into a sluice and to collect the same therein as well as to discontinuously return the cleaning bodies from the sluice into the cooling water inlet by means of cold water.
  • a preferred embodiment according to the present invention is thereby characterized by the fact that the cleaning bodies intercepted in the sieve installation are introduced into the sluice by the flow energy of the discharged cooling water. Such an arrangement may be realized structurally in different ways.
  • the cleaning system utilizes a sieve box and a sieve installation arranged therein for the interception of the cleaning bodies as is usual with the known cleaning methods
  • this may be attained, for example, by means of a damming-up chamber connected behind the sieve installation and by means of a by-pass line leading from the damming-up chamber by way of a sluice provided with a sieve basket back into the sieve box or back into the discharge or out let line.
  • This arrangement is made simple from an operational point of view by arranging valves in the cold water line and in the by-pass line ahead of and behind the sluice, and by thus enabling the introduction through these valves and connecting lines, While shutting-off the by-pass lines, of cold water under pressure into the sieve basket of the sluice and thereby causing the cleaning bodies to be pressed into the cooling water inlet line.
  • the pressure of the system of the water supply network is sufficient.
  • a pump for increasing the pressure may also be provided which withdraws cooling water from the cooling water inlet and forces the cooling water back into the cooling water by way of the sluice.
  • the water under pressure may also be withdrawn out of the cooling water line ahead of a throttling device and the balls or friction bodies may be re-introduced into the line behind the throttling device. Additionally, under favorable circumstances the water under pressure may be taken from the pressure line of the cooling water pump and the cleaning bodies may be introduced into the suction line.
  • the apparatus according to the present invention excels by its simplicity and safety as well as reliability in operation.
  • Still another object of the present invention residesan the provision of a return system for the cleaning bodies of self-cleaning installations used with heat exchangers which improves the thermodynamic efliciency, especially with relatively small heat-exchangers or heat-exchangers utilizing only relatively small cooling water quanuties without concern for any minimum cross section or minimum velocity of the cooling water in the discharge line of the heat-exchanger.
  • Still a further object of the present invention resides in the provision of a return system for returning the cleaning bodies from the cooling water discharge line of the heat exchanger to the inlet line thereof which obviates the need for a separate return pump for each heat-exchanger in an arrangement in which several heat-exchangers are connected with the same cooling water network.
  • Another object of the present invention resides in the provision of a greatly simplified method of returning the cleaning bodies from the cooling water discharge line to the cooling water inlet line by means of which only relatively cool water is utilized to reintroduce the cleaning bodies into the cooling water inlet line of the heatexchanger.
  • FIGURE 1 is a somewhat schematic view of a selfcleaning installation for a heat-exchanger provided with an apparatus for realizing the method of returning the cleaning bodies in accordance with the present invention
  • FIGURE 2 is a partial cross sectional view, on an enlarged scale, through the sluice and valve subassembly for realizing the method of the present invention with a system illustrated in FIGURE 1.
  • the heat-exchanger illustrated in FIGURE 1 is a tube-type or pipe heat-exchanger, for example, the con-denser of a steam power plant which is acted upon by cooling water.
  • the cooling water enters into the condenser 2 through the cooling water inlet line 1 and leaves the condenser 2 through the discharge or outlet line 3.
  • the heat-exchanging medium thereby flows transversely with respect to and on the outside of the pipes 4 of the condenser or heat-exchanger 2.
  • cleaning bodies 5 are introduced into the cooling water circulatory system which are conducted through the pipes 4 by the cooling water, fulffill thereat the cleaning function, and are intercepted again in the cooling water outlet or discharge line 3 with the aid of a sieve assembly generally designate-d by reference numeral 6 as well as are returned from the sieve assembly 6 into the cooling water inlet line 1.
  • the sieve installations 6 consist in the illustrated embodiment of two upper sieve portions 6a and 611 by means of which the cleaning bodies 5 are conducted or guided into a funnel portion 7 disposed therebelow which effectively forms a dammingup chamber or weir box.
  • This damming-up chamber 7 may be provided with outlet or discharge apertures, however, the conditions are usually so selected in accordance with well-known hydraulic principles that a genuine damming effect occurs.
  • a sluice 9 provided with a sieve basket 10 is operatively connected by way of line 8 with the damming-up chamber 7.
  • the sluice 9 in turn is connected again by way of a return line 11 with the sieve assembly 6.
  • the line 11 instead of discharging into the sieve assembly 6, the line 11 according to a modification of the present invention may also discharge into the outlet line or discharge line connected to the sieve assembly 6.
  • the present invention thus comprises a damming chamber 7 connected behind the sieves 6a and 6b in combination with by-pass lines 8 and 11 extending from the damming-up chamber 7 to the sluice 9, itself provided with a sieve basket 10, and from the sluice 9 back into the sieve assembly 6 or into the discharge line, respectively.
  • the cleaning bodies 5 are intercepted by the sieves 6a and 6b and reach by way of the damming-up chamber 7 and the section 8 of the by-pass line the sluice 9 where they retained by the sieve basket 19.
  • the cooling water alone then returns from sluice 9 by way of the section 11 of the by-pass line into the discharge line.
  • valves 12 in the bypass line sections 8 and 11 and the valves 13 in the cooling water line sections 15 and 16 have thereby the position shown in FIGURE 1.
  • the valves 12 are actuated followed by an actuation of the valves 13.
  • Both valve groups 12 and 13 are rotated for purposes of actuation by about Additionally, the pressure-increase pump 14 is engaged which may take place automatically with rotation of valves 13 which sucks cooling water out of the cooling water inlet line 1 by way of line section 15 and forces the cooling water into the inside of the sieve basket 10.
  • the cleaning bodies 5 are then returned by means of the water under pressure by way of line section 16 into the cooling water inlet line 1 where, for purposes of improved random distribution, they are injected into the cooling water stream in counter flow. Consequently, the present invention achieves to reintroduce the cleaning bodies by means of cold water into the cooling water inlet line 1 so that during the cleaning operations the efiiciency of the heat-exchangers is not affected in any manner.
  • FIGURE 2 is an enlarged partial cross sectional view illustrating the sluice and valve assembly consisting of sluice 9, sluice basket 10 and valves 12 and 13 utilized in the arrangement of FIGURE 1. Since the details of FIGURE 2 are believed obvious particularly when taken together with the description of FIGURE 1, a detailed description of FIGURE 2 is dispensed with herein.
  • valves 12 and 13 may be of any known construction.
  • any suitable semi-automatic electric control mechanism may be used for sequentially first closing valves 13 and thereafter re-opening valves 12.
  • energization and de-energization of pump 14- may take place automatically and in unison with actuation of valves 13 so as to energize pump 14 only while valves 13 are open.
  • an automatic sequential control may also be used which causes the rotation of the valves 12 and 13 in timed sequence at a predetermined adjustable repetition rate.
  • the valves may also be of any known construction.
  • an apparatus for returning said cleaning bodies from said cooling Water discharge line to said cooling water inlet line comprising:
  • said last-mentioned means including sluice means
  • sieve-type means Within said sluice means, first bypass line means from said intercepting means to said sluice means and from said sluice means back to said discharge line, and second by-pass line means from said inlet line to said sluice means and from said sluice means back to said inlet lines.
  • an apparatus for returning said cleaning bodies from said cooling water discharge line to said cooling Water inlet line comprising:
  • sieve-type intercepting means operatively connected in said discharge line for intercepting said cleaning bodies
  • said last-mentioned means including sluice means
  • sieve-type means within said sluice means first bypass line means from said intercepting means to said sluice means and from said sluice means back to said discharge line and second by-pass line means including pump means from said inlet line to said sluice means and from said sluice means back to said inlet lines.
  • an apparatus for returning said cleaning bodies from said cooling water discharge line to said cooling water inlet line comprising:
  • sieve-type intercepting means operatively connected in said discharge line for intercepting said cleaning bodies
  • said last-mentioned means including sluice means
  • sieve-type means within said sluice means first bypass line means from said intercepting means to said sluice means and from said sluice means back to said discharge line
  • second by-pass line means including pump means from said inlet line to said sluice means and from said sluice means back to said inlet lines
  • each of said by-pass line means being provided with adjustable valve means.
  • a return system in said connecting line in which said cleaning bodies are collected and are returned to the inlet line by means of relatively cool water including sluice means having means for collecting therein the cleaning bodies, means for conducting the intercepted cleaning bodies from said discharge line to said sluice means including adjustable valve means, and means including further adjustable valve means operatively connecting said sluice means with said inlet line for intermittently supplying the collected cleaning bodies by means of cold water to said inlet line.
  • a return system in said connecting line in which said cleaning bodies are collected and are returned to the inlet line by means of relatively cool water including sluice means having means for collecting therein the cleaning bodies, means for conducting the intercepted cleaning bodies from said discharge line to said sluice means including adjustable valve means, and means operatively connecting said sluice means in a circulatory system with said inlet line including pump means for intermittently supplying the collected cleaning bodies by means of cold water withdrawn from the inlet line to said inlet line.
  • a return system in said connecting line in which said cleaning bodies are collected and are returned to the inlet line by means of relatively cool water including sluice means having means for collecting therein the cleaning bodies, line means for conducting the intercepted cleaning bodies from said discharge line to said sluice means including adjustable valve means disposed in said line means ahead of and behind said sluice means, and further line means operatively connecting said sluice means with said inlet line for intermittently supplying the collected cleaning bodies by means of cold water to said inlet line including further valve means disposed in said further line means ahead of and behind said sluice means.
US263283A 1962-03-14 1963-03-06 Cleaning installation for heatexchangers Expired - Lifetime US3215195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET21748A DE1238939B (de) 1962-03-14 1962-03-14 Verfahren und Vorrichtung zur Rueckfuehrung der Reinigungskoerper bei der Reinigung von Roehren-Waermeaustauschern, insbesondere Kondensatoren, mittels im Umlauf gefuehrter Reinigungskoerper

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3319704A (en) * 1964-02-18 1967-05-16 Taprogge Reinigungsanlagen Method and arrangement for cleaning and controlling tube-type heat-exchangers
US3841397A (en) * 1972-11-08 1974-10-15 Taprogge Reinigungsanlagen Hydrodynamic sorting apparatus
US3882931A (en) * 1972-03-24 1975-05-13 Hitachi Ltd Means for cleaning heat conductive conduits of a heat exchanger
US4237962A (en) * 1978-08-11 1980-12-09 Vandenhoeck J Paul Self-cleaning heat exchanger
FR2468868A1 (fr) * 1979-11-06 1981-05-08 Taprogge Reinigungsanlagen Installation de nettoyage des tubes d'un condenseur pour centrale productrice d'energie
FR2502988A1 (fr) * 1981-04-01 1982-10-08 Gutmann Alfred Gmbh & Co Sas pour introduire de maniere dosee des corps de friction dans un systeme de canalisation pour du liquide et pour les en retirer
FR2535446A1 (fr) * 1982-10-28 1984-05-04 Atp Technology Perfectionnements aux dispositifs pour alimenter en corps nettoyants les echangeurs a tubes et recuperer ces corps
US4459466A (en) * 1980-11-26 1984-07-10 Nippon Soken, Inc. Dual air passage heating apparatus with ceramic heater element
US5926892A (en) * 1996-09-10 1999-07-27 Kyokuto Rubber Co., Ltd. Heat exchanger washing apparatus and heat exchanger washing method
WO2003102487A1 (en) * 2002-05-30 2003-12-11 Hydroball Technics Holdings Pte Ltd An improved cleaning system
US6728988B2 (en) * 2000-12-08 2004-05-04 Lynn Chaffee Ball collector for cleaning systems used for fluid conducting tubing
US20090095445A1 (en) * 2006-11-17 2009-04-16 Korea Institute Of Energy Research Self-cleaning heat exchanger using system for supplying solid particle and water
US20120012139A1 (en) * 2009-03-31 2012-01-19 Hydroball Technics Holdings Pte Ltd Cleaning system for cleaning tubing
US20180372433A1 (en) * 2017-06-23 2018-12-27 Eugene B Heat exchanger cleaning installation and associated system
US11103903B2 (en) * 2018-12-04 2021-08-31 Ovivo Inc. Ball circulation pump skid and related method
US20210396482A1 (en) * 2018-07-27 2021-12-23 Guangzhou Marton Environmental Technology Co., Ltd. Heat exchanger end cover integrated with rubber ball cleaning apparatus

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4234993A (en) * 1979-05-30 1980-11-25 Kintner Edwin K Condenser cleaning system using sponge balls
DE3011339C2 (de) * 1980-03-25 1982-12-09 Taprogge Gesellschaft mbH, 4000 Düsseldorf Verfahren zur Reinigung der Röhren eines Kraftwerkskondensators und Einrichtung zur Durchführung des Verfahrens
DE3124111C2 (de) * 1981-06-19 1984-01-12 Taprogge Gesellschaft mbH, 4000 Düsseldorf Vorrichtung zur Meerwasserentsalzung
DE3140803A1 (de) * 1981-10-14 1983-04-21 Riedel-Technik Gmbh, 5657 Haan "einrichtung zum geregelten transport von formelastischen poroesen reibkoerpern im fluessigen medium"
DE3207466A1 (de) * 1982-03-02 1983-09-15 Taprogge Gesellschaft mbH, 4000 Düsseldorf Vorrichtung zum reinigen von waermetauscher-roehren und verfahren zum betrieb einer derartigen vorrichtung
DE3325472C1 (de) * 1983-07-14 1984-12-20 Taprogge GmbH, 4000 Düsseldorf Vorrichtung zur Einspeisung von Reinigungskörpern
EP0200820B1 (de) * 1985-05-03 1988-03-30 GEA Energiesystemtechnik GmbH & Co. Schleuse zum Auffangen kugelförmiger Reinigungskörper
DE19500298C1 (de) * 1995-01-10 1996-05-23 Heinz Stricker Verfahren und Vorrichtung zum Vermeiden von Ablagerungen in einer Getränkeausschankleitung
DE29610898U1 (de) * 1996-06-21 1997-10-23 Taprogge Gmbh Siebeinrichtung zum Ausscheiden von Kugeln zum Reinigen der Rohre eines Wärmetauschers, Kondensators oder ähnlichem aus einer Kühlmittelleitung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1562199A (en) * 1920-09-04 1925-11-17 Westinghouse Electric & Mfg Co Radiating or cooling apparatus
US2801824A (en) * 1953-02-02 1957-08-06 Taprogge Josef Self-cleaning heat exchanger
US3021117A (en) * 1957-07-23 1962-02-13 Taprogge Josef Self-cleaning heat-exchanger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1562199A (en) * 1920-09-04 1925-11-17 Westinghouse Electric & Mfg Co Radiating or cooling apparatus
US2801824A (en) * 1953-02-02 1957-08-06 Taprogge Josef Self-cleaning heat exchanger
US3021117A (en) * 1957-07-23 1962-02-13 Taprogge Josef Self-cleaning heat-exchanger

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3319704A (en) * 1964-02-18 1967-05-16 Taprogge Reinigungsanlagen Method and arrangement for cleaning and controlling tube-type heat-exchangers
US3882931A (en) * 1972-03-24 1975-05-13 Hitachi Ltd Means for cleaning heat conductive conduits of a heat exchanger
US3841397A (en) * 1972-11-08 1974-10-15 Taprogge Reinigungsanlagen Hydrodynamic sorting apparatus
US4237962A (en) * 1978-08-11 1980-12-09 Vandenhoeck J Paul Self-cleaning heat exchanger
FR2468868A1 (fr) * 1979-11-06 1981-05-08 Taprogge Reinigungsanlagen Installation de nettoyage des tubes d'un condenseur pour centrale productrice d'energie
US4459466A (en) * 1980-11-26 1984-07-10 Nippon Soken, Inc. Dual air passage heating apparatus with ceramic heater element
FR2502988A1 (fr) * 1981-04-01 1982-10-08 Gutmann Alfred Gmbh & Co Sas pour introduire de maniere dosee des corps de friction dans un systeme de canalisation pour du liquide et pour les en retirer
FR2535446A1 (fr) * 1982-10-28 1984-05-04 Atp Technology Perfectionnements aux dispositifs pour alimenter en corps nettoyants les echangeurs a tubes et recuperer ces corps
US5926892A (en) * 1996-09-10 1999-07-27 Kyokuto Rubber Co., Ltd. Heat exchanger washing apparatus and heat exchanger washing method
US6728988B2 (en) * 2000-12-08 2004-05-04 Lynn Chaffee Ball collector for cleaning systems used for fluid conducting tubing
WO2003102487A1 (en) * 2002-05-30 2003-12-11 Hydroball Technics Holdings Pte Ltd An improved cleaning system
US20050067136A1 (en) * 2002-05-30 2005-03-31 Soh Beng Kiat Peter Cleaning system
US7036564B2 (en) 2002-05-30 2006-05-02 Hydroball Technics Holdings Pte Ltd. Cleaning system
CN100424461C (zh) * 2002-05-30 2008-10-08 海德堡技术控股私人有限公司 一种改进的清洁系统
US8181693B2 (en) * 2006-11-17 2012-05-22 Korea Institute Of Energy Research Self-cleaning heat exchanger using system for supplying solid particle and water
US20090095445A1 (en) * 2006-11-17 2009-04-16 Korea Institute Of Energy Research Self-cleaning heat exchanger using system for supplying solid particle and water
US20120012139A1 (en) * 2009-03-31 2012-01-19 Hydroball Technics Holdings Pte Ltd Cleaning system for cleaning tubing
US8943633B2 (en) * 2009-03-31 2015-02-03 Hydroball Technics Holdings Pte Ltd Cleaning system for cleaning tubing
US20180372433A1 (en) * 2017-06-23 2018-12-27 Eugene B Heat exchanger cleaning installation and associated system
US10816284B2 (en) * 2017-06-23 2020-10-27 Eugene B Cleaning installation for cleaning a heat exchanger
US20210396482A1 (en) * 2018-07-27 2021-12-23 Guangzhou Marton Environmental Technology Co., Ltd. Heat exchanger end cover integrated with rubber ball cleaning apparatus
US11965703B2 (en) * 2018-07-27 2024-04-23 Guangzhou Marton Environmental Technology Co., Ltd. Heat exchanger end cover integrated with rubber ball cleaning apparatus
US11103903B2 (en) * 2018-12-04 2021-08-31 Ovivo Inc. Ball circulation pump skid and related method

Also Published As

Publication number Publication date
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