US3841397A - Hydrodynamic sorting apparatus - Google Patents

Hydrodynamic sorting apparatus Download PDF

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Publication number
US3841397A
US3841397A US00414099A US41409973A US3841397A US 3841397 A US3841397 A US 3841397A US 00414099 A US00414099 A US 00414099A US 41409973 A US41409973 A US 41409973A US 3841397 A US3841397 A US 3841397A
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United States
Prior art keywords
sorting
balls
cooling fluid
basket
cleaning
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Expired - Lifetime
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US00414099A
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English (en)
Inventor
K Eimer
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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

  • Each of the preferred embodiments includes a sorting conduit having a sorting basket interposed in the flow of cooling fluid and cleaning balls through the condenser system.
  • the sorting conduit is arranged in bypassing relationship to the normal cooling fluid circulation so as to accept a partial stream of cooling fluid therethrough.
  • the sorting basket includes an apertured plate having openings which permit passage of balls below a reduced diameter while preventing passage of the remaining balls and the sorting conduit includes a sorting gate for trapping the balls passing through the basket and for accommodating removal of these worn balls.
  • the cleaning balls are subject to abrasion during the course of time and in a statistically fluctuating manner. Once the abrasion has reached a certain extent, the thus-worn cleaning balls no longer fulfill their cleaning function. These worn cleaning balls must then be removed and replaced by new ones. For removing and replacing worn balls, it has been contemplated to provide a so-called ball gate or sluice in the cooling water cycle, consisting of a more or less cylindrical container with a screen basket inserted therein.
  • a discharge conduit is connected via a valve to the screen basket, on the one hand, and to the space underneath the screen basket, on the other hand, so that it is possible to selectively withdraw either the cooling water with the cleaning balls entrained therein from the space upstream of the screen basket, or only the cooling water without the cleaning balls (cleaning balls being retained in the screen basket).
  • This arrangement affords the prerequisite for retaining all cleaning balls in the screen basket.
  • the cleaning balls if necessary, are captured in this ball gate and withdrawn therefrom.
  • the used-up or worn balls after removal of the entire number of balls, are sorted out manually or by means of a perforated screen plate and replaced by new ones. All of this removal and replacement of worn balls is a complicated, time consuming, uneconomic procedure.
  • the invention contemplates further developing a condenser system of the aforedescribed type so that the worn-down cleaning balls can be automatically eliminated.
  • Prefered embodiments of the invention relate to a condenser system for steam turbines and the like with a cooling water cycle passing through the condenser and with elastically deformable cleaning balls of rubber, a synthetic resin, or the like, entrained by the cooling water circulation.
  • the invention contemplates providing the cooling water cycle with a device for the hydrodynamic sorting of the cleaning balls.
  • a device for hydrodynamic sorting within the scope of the present invention is intended to mean any apparatus which, by hydrodynamic forces and screens, sort out worn cleaning balls from the cooling water cycle. This can be done in various ways.
  • a preferred embodiment of the invention is characterized in that the device for the hydrodynamic sorting of the cleaning balls consists of a sorting conduit constructed as a bypass or branch line of the cooling water cycle, which conduit is designed for a partial stream of the cooling water.
  • the sorting conduit has, at the inlet, a sorting basket with passage openings, which basket allows these cleaning balls to pass which are to be sorted out and which are reduced in diameter by wear and tear.
  • a sorting gate is provided in the sorting conduit which retains these cleaning balls and which can be opened for the removal of thus-retained cleaning balls.
  • the cooling water cycle can be provided with special structural components.
  • the sorting process is accomplished in a maximally short period of time in a preferred arrangement of the condenser system where the cooling water cycle is equipped with a turbulence chamber with radial or tangential extrance for the cooling water and with an axial outlet for the cooling water.
  • the sorting conduit extends radially into the turbulence chamber with the screening or sorting basket being arranged inside this chamber.
  • This sorting basket is preferably arranged in the zone of the center of the turbulence chamber eccentrically close to the outer wall so as to be in a zone of maximum turbulence.
  • the turbulence chamber can additionally be designed as a ball gate and can be provided for this purpose in a manner similar to that described above for previously contemplated systems without a hydrodynamic sorter.
  • the sorting conduit and sorting basket extend into the space of said ball gate upstream of the screen basket and the other downstream end of the sorting conduit connects with the discharge conduit of the ball gate at a position downstream of the screen basket and valve of the ball gate.
  • sorting conduit and sorting basket extend radially into a straight turbulence path of the cooling water cycle.
  • the present invention is advantageous in that worndown cleaning balls can be sorted out automatically in a very simple operation continuously or periodically, which balls can then be replaced in any desired manner by new cleaning balls.
  • the device for the hydrodynamic sorting process can be installed either separately from or in combination with a customary ball gate according to the above and below described preferred embodiments.
  • FIG. 1 is an axial part-sectional schematic view through a ball gate of a condenser system device for the hydrodynamic sorting of the cleaning balls in accordance with a preferred embodiment of the present invention
  • FIG. 2 is a top part-sectional schematic view of the arrangement of FIG. 1;
  • FIG. 3 is an axial part-sectional schematic view of another embodiment of a device for the hydrodynamic sorting of cleaning balls in a condenser system according to this invention
  • FIG. 4 is a top part-sectional schematic view of the arrangement of FIG. 3;
  • FIG. 5 is an axial part-sectional schematic view of a pipe conduit of a condenser system with a further embodiment of the device for the hydrodynamic sorting of the cleaning balls according to this invention.
  • FIG. 6 is a schematic view depicting the apparatus of the present invention in conjunction with a condenser system.
  • the ball gate 1 illustrated in FIGS. 1, 2 and 6 pertains to a condenser system for steam turbines and the like with a cooling water cycle extended through the condenser elements C' of the condenser C and with cleaning balls 2 of rubber, a synthetic resin, or the like, entrained by the cooling water.
  • the ball gate 1 consists of a cylindrical container 3 with a screen basket 4 installed therein.
  • the thusretajned cleaning balls 2 may all be withdrawn from the cycle (removed from screen basket 4), for the purpose of replacing worn cleaning balls 2.
  • the balls 2 may then be sorted and reintroduced into the cooling water cycle after the used cleaning balls have been replaced by new ones.
  • a device for the automatic hydrodynamic sorting of the cleaning balls 2 which avoids the necessity of retaining all of the balls at one time.
  • All illustrated preferred embodiments of the device for the hydrodynamic sorting of the cleaning balls 2 in accordance with the present invention include a sorting conduit 9 designed as a bypass or branch line of the cooling water cycle, which conduit 9 is constructed for accepting a partial stream of the cooling water.
  • This sorting conduit 9 has, at the inlet, a sorting basket 10 with passage openings 11, which allows the cleaning balls 2a, which have been reduced in diameter by wear and tear and are to be sorted out, to pass through, whereas the other balls are prevented from passing through.
  • the sorting conduit 9 furthermore comprises a sorting gate or second gate (in the embodiment of FIGS. 1 and 2 with the ball gate 1) 12.
  • the sorting gate 12 retains these cleaning balls 2a and is openable in order to remove the thus-retained cleaning balls 2a.
  • the ball gate 1 (FIGS. 1 and 2) still operates as usual as a ball gate, i.e. the gate 1 is switchable to the ball retaining position if, for some reason, all cleaning balls 2 are to be removed. Additionally, an automatic sorting out of the worn cleaning balls is accomplished via the above-described arrangement of the bypass line or sorting conduit 9.
  • the ball gate 1 in total already acts as a turbulence chamber due to the flow of cooling water therethrough as described below. Because of the turbulene flow in the ball gate 1, the worn down balls 2a are quickly passed through openings l1, and into conduit 9 and the second gate l2.
  • FIGS. 3-5 include a turbulence chamber in place of or in addition to a ball gate.
  • the FIGS. 3 and 4 embodiments include a turbulence chamber 3 with a radial or tangential cooling water inlet 14 and an axial cooling water outlet 15, wherein the sorting conduit 9 extends radially into the turbulence chamber 13, and the sorting basket 10 is disposed in the zone of the center of the turbulence chamber 13.
  • the cooling water cycle is provided with a straight turbulence path or zone 16, the sprting conduit 9 extending radially into the turbulence path 16 and the sorting basket 10 being arranged in the zone of the center of the turbulence path.
  • the main stream of the cooling water cycle conducts the balls 2, via a preferably eccentric inlet 17 (eccentric with respect to centerline of cylindrical container 3 so as to enhance turbulence), into the ball gate 1 which is in the passing position (position freely connecting line 8 with space 6 so that balls can cycle through system).
  • a small stream of water namely the so-called sorting stream 18 enters the sorting conduit 9 through the free cross-sectional areas 20 of the openings 11 of the screen or perforated plate 19 of the sorting basket 10.
  • the sorting stream 18 is recombined with the main stream 21, namely at 22.
  • the sorting stream 18 preferably comprises quantitatively about l0-30 percent of the main stream 21, depending on the size of the main stream 21.
  • Cleaning balls 2a having a diameter smaller than the adjustable perforation diameter 20 of the sorting basket 10, can, as mentioned above, enter the sorting basket l0 and are collected in the sorting gate 12, where they can be withdrawn and replaced by new cleaning balls 2, without having to stop the cooling water cycle conducted via the ball gate 1 and without having to remove all of the balls 2, 2a.
  • the sorting conduit 9 is preferably equipped on both sides of the sorting gate with shutoff valves V and V. Balls 2 having a diameter larger than the diameter 20 cannot enter the sorting basket 10.
  • the above-described device for the hydrodynamic sorting of the cleaning balls 2, 2a has a suprisingly accurate sorting effect with a very small range fluctuating about the theoretical sorting limit.
  • a collective number of cleaning balls circulated in the system of l8 22 mm. diameter can be divided into classes or graduations of 0.5 mm., wherein, of course, the sorting basket 10 is equipped with an appropriate screen or perforated plate 19.
  • the device for the hydrodynamic sorting of the cleaning balls 2, 20 can thus differentiate very accurately.
  • the worn-down balls 2a are not all sorted out during the first circulation. For statistical reasons, several cycles are required to effect a complete sorting. If the device for hydrodynamic sorting is inserted for continuous operation, then the sorting process will be continuous. However, since the sorting speed is very high as compared to the wearing speed of the cleaning balls 2, it is also possible to operate in a periodic type of process.
  • the complete condenser fluid circulation circuit for the embodiments of FIGS. 3 to 5 will also include a condenser C and shutoff valve V, V as in the FIG. 1 and 2 embodiment.
  • Plates 19 are preferably interchangeably mounted to accommodate changing to different size hole patterns for different use conditions.
  • the invention contemplates both continued and intermittent operation of the sorting apparatus.-ln the case of intermittent operation, all balls are collected in the ball gate (with valve 5 connecting space 7 to line 8) for the sorting operation as described above. After the sorting operation, space 6 is connected to line 8 for normal ball recirculation. Particularly preferred operations in conducted tests include extending the intermittent operation to only a flew minutes per week of condenser system operation.
  • a condenser system for steam turbines and the like comprising:
  • said hydrodynamic sorting apparatus includes ball retention means for preventing those balls of reduced size from being circulated through said condenser elements.
  • said hydrodynamic sorting apparatus includes means for preventing those balls of reduced size from being circulated through said condenser elements while permitting uninterrupted continuous circulation of the remaining balls and the cooling fluid through said circulation means.
  • said hydrodynamic sorting apparatus includes:
  • sorting conduit fluidly connecting first and second portions of said circulation means in bypassing relationship to the normal flow of cooling fluid from the first portion to the second point, said sorting conduit being positioned for continuously conducting a portion of the cooling liquid therethrough in a direction from said first portion to said second portion,
  • a sorting basket at the first portion of said circulation means which has passage openings for permitting passage therethrough of cleaning balls of a size smaller than said predetermined reduced size while preventing passage therethrough of cleaning balls of a size greater than said predetermined reduced size
  • sorting gate access means includes stop valves positioned at either side of said sorting gate forstopping the flow of cooling fluid to and from said sorting gage and openable cover means which provide access to said balls in said sorting gate.
  • said circulation means includes a turbulence chamber with an axially directed cooling fluid outlet and a cooling fluid inlet extending transverse to said cooling fluid outlet, and wherein said sorting conduit extends into said turbulence chamber in a direction transverse to said cooling fluid outlet with said sorting basket disposed in the turbulence chamber.
  • cooling fluid inlet extends radially of said turbulence chamher.
  • cooling fluid inlet extends tangentially into said turbulence chamber.
  • said turbulence chamber is constructed as a ball gate in the form of a cylindrical container with a screen basket disposed therein, and wherein valve means are provided for selectively communicating the flow of fluid from said screen basket to downstream portions of said circulation means by one of said cooling fluid outlet and screen mesh portions of said screen basket which bypass said cooling fluid outlet, whereby all of said balls can be retained in said ball gate by moving said valve means so as to communicate said flow of fluid to said downstream portion of said circulation means only by way of said screen mesh portions.
  • cooling fluid outlet is dimensioned to accommodate passage of all of said balls therethrough and said screen mesh portions are dimensioned to prevent passage of any of said balls therethrough.
  • said circulation means includes a straight turbulence section through which all cooling fluid and balls pass, and
  • sorting conduit extends radially into said straight section with the sorting basket in the turbulence flow path through said straight section.
  • cooling fluid is water
  • a hydrodynamic sorting apparatus for automatically separating cleaning balls of a size below a predetermined reduced size from the remainder of the cleaning balls in a condenser system where cleaning balls are circulated with cooling fluid in a cooling fluid circulation means to clean condenser elements, wherein said hydrodynamic sorting apparatus includes:
  • sorting conduit fluidly connecting first and second portions of said circulation means in bypassing relationship to the normal flow of cooling fluid from the first portion to the second portion, said sorting conduit being positioned for continuously conducting a portion of the cooling liquid therethrough in a direction from said first portion to said second portion,
  • a sorting basket at the first portion of said circulation means which has passage openings for permitting passage therethrough of cleaning balls of a size smaller than said predetermined reduced size while preventing passage therethrough of cleaning balls of a size greater than said predetermined reduced size
  • Apparatus according to claim 15 wherein means are provided for effecting a continuous operation of said separating of said cleaning balls during operation of the condenser system.
  • Apparatus according to claim 15 wherein means are provided for effecting an intermittent operation of said separating of said cleaning balls during operation of the condenser system.

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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)
  • Pinball Game Machines (AREA)
  • Cleaning By Liquid Or Steam (AREA)
US00414099A 1972-11-08 1973-11-08 Hydrodynamic sorting apparatus Expired - Lifetime US3841397A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2254677A DE2254677C2 (de) 1972-11-08 1972-11-08 Einrichtung zum Aussortieren von im Kühlwasserkreislauf eines Kondensators mitgeführten abgeriebenen Reinigungskugeln

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US3841397A true US3841397A (en) 1974-10-15

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US00414099A Expired - Lifetime US3841397A (en) 1972-11-08 1973-11-08 Hydrodynamic sorting apparatus

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JP (1) JPS533443B2 (sv)
DE (1) DE2254677C2 (sv)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919732A (en) * 1973-11-08 1975-11-18 Tokyo Shibaura Electric Co Descaling system for condenser cooling tubes
US4079782A (en) * 1974-11-14 1978-03-21 The Leslie Company Self cleaning heat exchanger circuit
US4208220A (en) * 1978-05-15 1980-06-17 The Research Corporation Of The University Of Hawaii Method and apparatus for cleaning heat exchanger tubes mounted transversely to vertical flow of seawater
US4314604A (en) * 1978-09-23 1982-02-09 Josef Koller Apparatus for the segregation of worn-out cleaning bodies
US4447925A (en) * 1981-04-01 1984-05-15 Firma Alfred Gutmann Gmbh And Co. Sluice apparatus for cleaning the interior of pipes
US4566533A (en) * 1982-03-02 1986-01-28 Taprogge Gesellschaft Mbh Apparatus for cleaning heat exchanger pipes and methods of operating an apparatus of this type
US4620589A (en) * 1984-01-31 1986-11-04 Josef Koller Device for cleaning the pipes of pipe heat-exchangers
US4974662A (en) * 1988-07-27 1990-12-04 Technos Et Compagnie Devices for removing worn balls from cleaning installations for tube bundles
US20020148598A1 (en) * 2001-04-13 2002-10-17 Beaudrey C S Control installation including a sorter for processing solid bodies circulated in a heat exchanger to clean it, and a sorter for use in said control installation
US20070204973A1 (en) * 2004-07-16 2007-09-06 Hydroactive Veloball International System and Apparatus for Non-Powered Cleaning of Tubular Heat Exchange Systems
US20080263795A1 (en) * 2005-02-17 2008-10-30 Kok Heng Chow Device for Cleaning Tubes
CN112611253A (zh) * 2020-12-01 2021-04-06 内蒙古金石镁业有限公司 一种冷却器自动清扫装置及其清扫控制方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412153A (en) * 1977-06-29 1979-01-29 Hisaka Works Ltd Method of preventing and cleaning scale
DE2908493C2 (de) * 1979-03-05 1982-09-23 Josef Ing.(Grad.) 4006 Erkrath Koller Einrichtung zum Aussortieren von abgeriebenen Reinigungskörpern für eine Vorrichtung zum Reinigen der Innenflächen von Wärmetauschleitungen
FR2468868A1 (fr) * 1979-11-06 1981-05-08 Taprogge Reinigungsanlagen Installation de nettoyage des tubes d'un condenseur pour centrale productrice d'energie
KR860000855B1 (ko) * 1980-06-30 1986-07-09 가부시기가이샤 히다찌 세이사꾸쇼 열교환기 열전도 도관의 세정장치
DE3102349C2 (de) * 1981-01-24 1983-07-21 Taprogge Gesellschaft mbH, 4000 Düsseldorf Vorrichtung für das Abscheiden, Sammeln und Abführen von Reinigungskörpern bei Kraftwerkskondensatoren
US5000821A (en) * 1988-05-25 1991-03-19 Resources Conservation Company Apparatus for controlling solid particle flow in an evaporator
DE29610898U1 (de) * 1996-06-21 1997-10-23 Taprogge GmbH, 58300 Wetter Siebeinrichtung zum Ausscheiden von Kugeln zum Reinigen der Rohre eines Wärmetauschers, Kondensators oder ähnlichem aus einer Kühlmittelleitung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1795348A (en) * 1927-03-30 1931-03-10 Westinghouse Electric & Mfg Co Condenser-cleaning system
US3021117A (en) * 1957-07-23 1962-02-13 Taprogge Josef Self-cleaning heat-exchanger
US3215195A (en) * 1962-03-14 1965-11-02 Taprogge Reinigungsanlagen Cleaning installation for heatexchangers
DE1247359B (de) * 1962-01-22 1967-08-17 Hitachi Ltd Reinigungsvorrichtung fuer Roehren-Waermetauscher

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1795348A (en) * 1927-03-30 1931-03-10 Westinghouse Electric & Mfg Co Condenser-cleaning system
US3021117A (en) * 1957-07-23 1962-02-13 Taprogge Josef Self-cleaning heat-exchanger
DE1247359B (de) * 1962-01-22 1967-08-17 Hitachi Ltd Reinigungsvorrichtung fuer Roehren-Waermetauscher
US3215195A (en) * 1962-03-14 1965-11-02 Taprogge Reinigungsanlagen Cleaning installation for heatexchangers

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919732A (en) * 1973-11-08 1975-11-18 Tokyo Shibaura Electric Co Descaling system for condenser cooling tubes
US4079782A (en) * 1974-11-14 1978-03-21 The Leslie Company Self cleaning heat exchanger circuit
US4208220A (en) * 1978-05-15 1980-06-17 The Research Corporation Of The University Of Hawaii Method and apparatus for cleaning heat exchanger tubes mounted transversely to vertical flow of seawater
US4314604A (en) * 1978-09-23 1982-02-09 Josef Koller Apparatus for the segregation of worn-out cleaning bodies
US4447925A (en) * 1981-04-01 1984-05-15 Firma Alfred Gutmann Gmbh And Co. Sluice apparatus for cleaning the interior of pipes
US4566533A (en) * 1982-03-02 1986-01-28 Taprogge Gesellschaft Mbh Apparatus for cleaning heat exchanger pipes and methods of operating an apparatus of this type
US4620589A (en) * 1984-01-31 1986-11-04 Josef Koller Device for cleaning the pipes of pipe heat-exchangers
US4974662A (en) * 1988-07-27 1990-12-04 Technos Et Compagnie Devices for removing worn balls from cleaning installations for tube bundles
US20020148598A1 (en) * 2001-04-13 2002-10-17 Beaudrey C S Control installation including a sorter for processing solid bodies circulated in a heat exchanger to clean it, and a sorter for use in said control installation
US20070204973A1 (en) * 2004-07-16 2007-09-06 Hydroactive Veloball International System and Apparatus for Non-Powered Cleaning of Tubular Heat Exchange Systems
US7735545B2 (en) * 2004-07-16 2010-06-15 Hydroactive Veloball International System and apparatus for non-powered cleaning of tubular heat exchange systems
US20080263795A1 (en) * 2005-02-17 2008-10-30 Kok Heng Chow Device for Cleaning Tubes
US7971307B2 (en) 2005-02-17 2011-07-05 Hydroactive Veloball International Device for cleaning tubes
CN112611253A (zh) * 2020-12-01 2021-04-06 内蒙古金石镁业有限公司 一种冷却器自动清扫装置及其清扫控制方法
CN112611253B (zh) * 2020-12-01 2022-06-07 内蒙古金石镁业有限公司 一种冷却器自动清扫装置及其清扫控制方法

Also Published As

Publication number Publication date
DE2254677C2 (de) 1975-02-13
JPS533443B2 (sv) 1978-02-07
JPS4986701A (sv) 1974-08-20
DE2254677B1 (de) 1974-05-30

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