US3883431A - Cleaning apparatus - Google Patents

Cleaning apparatus Download PDF

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Publication number
US3883431A
US3883431A US46262974A US3883431A US 3883431 A US3883431 A US 3883431A US 46262974 A US46262974 A US 46262974A US 3883431 A US3883431 A US 3883431A
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US
United States
Prior art keywords
fluid
opening
piping arrangement
container
flow
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
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English (en)
Inventor
Kiyoshi Ishii
Shobu Konomi
Yoshio Ishiguro
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.)
Daicel Corp
Original Assignee
Daicel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daicel Corp filed Critical Daicel Corp
Application granted granted Critical
Publication of US3883431A publication Critical patent/US3883431A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B08B9/0552—Spherically shaped pigs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/06—Tubular membrane modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/057—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices being entrained discrete elements, e.g. balls, grinding elements, brushes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/20—By influencing the flow
    • B01D2321/2083—By reversing the flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • B01D65/04—Membrane cleaning or sterilisation ; Membrane regeneration with movable bodies, e.g. foam balls
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/4891—With holder for solid, flaky or pulverized material to be dissolved or entrained

Definitions

  • ABSTRACT A cleaning apparatus for use in connection with fluidflow tubing systems, particularly for cleaning tubular semipermeable membranes, comprising a cartridge which is adapted to supply scrubbing and cleaning objects such as sponge balls into the tubing system, and which is adapted to receive and contain the objects when the direction of fluid flow in the system is reversed.
  • a by-pass conduit and a check valve are provided to permit fluid to flow around the cartridge when the flow direction is reversed.
  • This invention relates to an improvement in our earlier apparatus, and a primary object of this invention is to provide a washing apparatus having a structure such that the movement of the rubbing and cleaning members can be performed more positively.
  • FIG. 1 is a longitudinal cross-sectional view of the cartridge employed in the apparatus of the present invention.
  • FIG. 2 is a perspective view of the check valve used in the cartridge of FIG. 1.
  • FIG. 3 is a schematic illustration of the overall fluidflow system.
  • FIGS. 4A through 4D are diagrammatic plane views showing the shapes of several porous barriers.
  • FIGS. 5A through 5C are perspective views showing the shapes of several check valves.
  • This invention relates to an apparatus for rubbing and cleaning tubing systems such as the inner face or surface of a tubular osmotic semipermeable membrane in a liquid treatment system or the like utilizing reverse osmotic pressure, in which one or more rubbing and cleaning members are moved reciprocatively, i.e., back and forth, in the tubing system in order to clean same.
  • the invention provides a casing 4 serving as a cartridge or container for receiving the rubbing and cleaning members 1.
  • the casing 4 is open at its rightward end and is adapted for connection to the tubing system 12 so that the members 1 can move from the casing through the tubing system and vice versa.
  • the casing 4 has a fixed porous barrier 7 which permits passage of fluid but does not allow passage of the rubbing and cleaning members 1.
  • the casing 4 is disposed within a housing 8 and is spaced therefrom to define an annular by-pass passage 6 surrounding the casing 4.
  • the by-pass passage 6 extends from the vicinity of the rightward end of the casing 4 to a postition beyond the barrier 7.
  • a tube 20 extends axially from barrier 7 into the fitting 21 attached to the leftward end of the housing 8.
  • the tube 20 has openings 5 so that fluid can flow from the fitting 21 into the by-pass passage 6, and vice versa.
  • a check valve 3 is slidably movable within the tube 20 and is adapted to open and close the opening 5 in said tube 20. The check valve 3 is automatically opened and closed by reversals of the direction of flow through the housing 8, as described below.
  • One or more spherical elastically compressible members are used as the rubbing and cleaning members 1 in the apparatus of the present invention.
  • the rightward end of the housing 8 has an opening 9 adapted to be connected, as by a threaded or soldered connection, to the tubing system, which preferably is a reverse osmotic semipermeable membrane module 12 as shown in FIG. 3.
  • the tubing system which preferably is a reverse osmotic semipermeable membrane module 12 as shown in FIG. 3.
  • the opening 9 is sized so that the balls 1 can move therethrough from the casing 4 into the membrane module 12 and vice versa.
  • the fitting 21 on the opposite end of the housing 8 has an opening 2 for connection, as by soldering or a threaded connection, to a pipe connected to a valving system, such as a system containing valves 14.
  • the check valve 3 preferably is a ring valve as shown in FIG. 2, but it can take any shapes such as shown in FIG. 5, A, B, C.
  • the valve 3 has a central divider 10 providing a surface acted on by fluid pressure so that the valve can be moved back and forth by application of fluid pressure on one end or the other end of said divider.
  • the valve 3 is moved to the right to the position shown in broken lines in FIG. 1 thereby closing by-pass holes 5. This causes the entirety of the liquid to be directed through the casing 4, thereby forcing the balls 1 from the casing 4 through the membrane module 12.
  • the barrier 7 there is usually employed a screen, but it can take any shapes such as shown in FIG. 4, which include net (FIG. 4, A), perforated plate (FIG. 4, B) and grid (FIG. 4, C or D).
  • FIG. 4 illustrates a screen, but it can take any shapes such as shown in FIG. 4, which include net (FIG. 4, A), perforated plate (FIG. 4, B) and grid (FIG. 4, C or D).
  • Two housings 8 are respectively connected by their openings 9 to the opposite ends of the reverse osmotic semipermeable membrane module 12.
  • a prescribed number of sponge balls 1, three in the illustrated embodiment of the invention, are thereby made present in the fluid-flow system.
  • the rubbing and washing members 1 are thereby moved through the module 12 to effect automatically the rubbing and cleaning of the inner surfaces of the module, under the hydraulic pressure of the treating liquid.
  • the members 1 then enter the casing 8 at the liquid outlet end of the fluid-flow system and move into the casing 4 thereof where they are stopped by the screen 7.
  • the ring valve 3 at the liquid outlet end of the fluid-flow system has already been moved outwardly by the pressure of the treating liquid before the entry of cleaning members 1 into the casing 4, whereby the bypass holes 5 of the casing 4 is thereby open.
  • the treating liquid entering the housing 8 at the liquid outlet end of the system passes through the opening 9, the by-pass passage 6, the by-pass holes 5 and into the opening 2 at the liquid outlet end of the system.
  • the rubbing and washing members 1 are stopped by the screen 7 at the discharge end of the system.
  • the parts then remain in this condition until the direction of flow of the treating liquid through the module 12 is reversed.
  • the direction of flow of the treating liquid through the module 12 is reversed. reverse movement of the parts takes place.
  • the direction of the liquid flow is reversed by reversing the liquid direction-changing valves 14, whereby to cause the members 1 to clean and scrub the inner surface of the membrane
  • the treating liquid flow system includes a pump 13, a main flow control valve 15 and a reservoir or supply 16.
  • valve arrangement used for reversing the direction of flow of the treating liquid is not critical.
  • the various valve arrangements described in Ser. No. 282 449 can be used. for example.
  • the valves 14b. 140 are open and valves 14a, 14d are closed.
  • valves 14b, 146 are closed.
  • the valves can be opened and closed by hand or by an automatic cycle timer.
  • the rubbing and cleaning operation can be performed simply at any time as occasion demands, by repeating the above procedures
  • the membrane cleaning operation can be carried out by employing the treating liquid which is to be subjected to the reverse osmosis operation.
  • a special washing liquid can be used to effect movement of the cleaning elements.
  • the rubbing and cleaning of the membrane can be performed by reversing the direction of the liquid flow, using the check valves 3. Therefore, the separation operation need not be interrupted for the rubbing and cleaning, and the separation operation can be conducted continuously. Further, when a control member such as a timer is employed for operating the liquid passage valves 14, automatic cyclic cleaning is possible.
  • the assembly can be made very compact.
  • the apparatus of the present device can be used not only for reverse osmotic systems but also for tubing systems in which slurries or precipitates frequently become present in the inner faces of the tubing, and these slurries or precipitates can easily be removed by rubbing and cleaning.
  • 17 represents a receiver for receiving purified water coming from the reverse osmosis module 12.
  • a fluid-flow system comprising a tubular piping arrangement having reversing valve means for reversing the direction of flow of fluid through the piping arrangement.
  • reversing valve means for reversing the direction of flow of fluid through the piping arrangement.
  • one or more resiliently compressible objects movable back and forth through said piping arrangement to clean same.
  • said retaining means comprises a container which is open at one end for receiving said objects from or directing said objects into said tubular piping arrangement and which is blocked at its opposite end by a porous barrier: by-pass conduit means connected in parallel with said container for by-passing liquid around said container; and check valve means coupled to the blocked end of the container and which is responsive to the direction of flow of liquid through said piping arrangement for movement between positions in which l) the liquid entering said tubular piping arrangement flows substantially entirely through said porous barrier and said container to force said object or objects through said piping arrangement. and (2) the liquid leaving said tubular piping arrangement flows into said container and then through said by-pass conduit means and said check valve means.
  • a fluid-flow system according to claim 1 in which there are two retaining means respectively connected to opposite ends of said tubular piping arrangement.
  • a fluid-flow system including a housing surrounding and radially spaced from said container with the space therebetween defining said by-pass conduit means, said housing having a first opening at one end thereof connected to said tubular piping arrangement and having a second opening at the other end thereof connected to said reversing valve means.
  • a fluid-flow system in which said check valve means is disposed within said housing between said second opening of said housing and said porous barrier, said by-pass conduit means having one end in open communication with said first opening and having its other end extending beyond said porous barrier for communication through said check valve means with said second opening.
  • check valve is a slideable sleeve valve movable between positions opening and closing communication between said other end of said by-pass conduit means and said second opening.
  • a fluid-flow system including a tube extending from said porous barrier across said other end of said by-pass conduit means, said tube having opening means therethrough, said sleeve valve being slideable axially inside said tube between positions opening and closing said opening means, said sleeve valve having a divider extending across the interior thereof for being acted on by the fluid flowing through the system.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Cleaning In General (AREA)
US46262974 1973-04-25 1974-04-22 Cleaning apparatus Expired - Lifetime US3883431A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4938973U JPS5226206Y2 (zh) 1973-04-25 1973-04-25

Publications (1)

Publication Number Publication Date
US3883431A true US3883431A (en) 1975-05-13

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Family Applications (1)

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US46262974 Expired - Lifetime US3883431A (en) 1973-04-25 1974-04-22 Cleaning apparatus

Country Status (5)

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US (1) US3883431A (zh)
JP (1) JPS5226206Y2 (zh)
DE (1) DE2419296A1 (zh)
FR (1) FR2227491B1 (zh)
GB (1) GB1463421A (zh)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016083A (en) * 1974-12-18 1977-04-05 Daicel, Ltd. Spirally-wound membrane-type separator module capable of reversing the direction of liquid flow
US4044418A (en) * 1975-06-06 1977-08-30 Daicel Ltd. Tube scrubbing apparatus
US4060483A (en) * 1975-05-14 1977-11-29 Barzuza Y Method and apparatus for effecting the cleaning of a fluid filter
US4080289A (en) * 1975-02-28 1978-03-21 Hitachi, Ltd. And Hitachi Plant Engineering And Construction Co., Ltd. Apparatus for treating waste water or solution
US4198293A (en) * 1975-03-22 1980-04-15 Hitachi, Ltd. Tubular membrane separation process and apparatus therefor
US4415022A (en) * 1982-02-18 1983-11-15 Water Services Of America, Inc. Mounting for heat exchanger tube cleaner capturing devices
US4726936A (en) * 1983-12-10 1988-02-23 Rheinische Braunkohlenwerke Ag. Apparatus for injecting a substance into a reaction vessel
US4820422A (en) * 1985-02-05 1989-04-11 Envirecon Services Limited Method for countering scale formation in fluid conduits
US5219244A (en) * 1991-02-13 1993-06-15 Fmc Corporation Subsea pipeline pig launching system
US5477318A (en) * 1992-09-16 1995-12-19 Nippondenso Co., Ltd. Apparatus for detecting a property of a liquid
US5890531A (en) * 1995-04-18 1999-04-06 Noram Engineering And Constructors Ltd. Apparatus for the self-cleaning of process tubes
US20070110864A1 (en) * 2005-10-27 2007-05-17 Galloway Company Pigging system
US7368139B1 (en) * 2002-03-15 2008-05-06 Bronnert Herve X Aseptic processing system for fruit filling
US20080302389A1 (en) * 2007-06-06 2008-12-11 Orlande Sivacoe Pig pumping unit
ITMI20100665A1 (it) * 2010-04-19 2010-07-19 Antonio Fiorentino Sistema meccanico per la prevenzione dei depositi calcarei basato su piccole sfere in movimento
CN103447270A (zh) * 2013-08-02 2013-12-18 常士章 油田管线解堵方法
CN103721980A (zh) * 2013-12-17 2014-04-16 朱伟 小口径管道内壁清洗装置及其清洗方法
EP2754643A1 (en) * 2013-01-10 2014-07-16 Rate International Oy Waste water filtering system and a method for filtering waste water
WO2015188272A1 (en) * 2014-06-09 2015-12-17 Back Porch Holdings Inc. On-line cleaning of a heat exchanger tubing using a brush and a flow diverter
CN107242849A (zh) * 2017-04-27 2017-10-13 重庆金山医疗器械有限公司 内窥镜灌流器
CN107695054A (zh) * 2017-10-27 2018-02-16 芜湖通和汽车管路系统股份有限公司 一种管件内壁清理装置
CN108144453A (zh) * 2016-12-04 2018-06-12 江苏沛尔膜业股份有限公司 一种免清洗平板膜组件
CN108787649A (zh) * 2018-08-03 2018-11-13 漯河恒丰机械制造科技有限公司 一种吹气头及具有其的清洗机
US11154917B2 (en) 2016-09-01 2021-10-26 Luisa Anne Sivacoe Pig pumping unit
US11226062B2 (en) 2019-02-18 2022-01-18 Tropicana Products, Inc. Method for minimizing material mixing during transitions in a material processing system
CN113941572A (zh) * 2021-09-27 2022-01-18 朱淮兵 钢管循环清洗方法及设备

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JPS51112486A (en) * 1975-03-28 1976-10-04 Ebara Infilco Co Ltd Method of preventing contamination of a membrane
JPS51120045A (en) * 1975-04-12 1976-10-21 Katayama Chem Works Co Ltd Method of and apparatus for treating excretion for ships
JPS5380065A (en) * 1976-12-25 1978-07-15 Honda Motor Co Ltd Apparatus for filtering bath containing powder
JPS53142049A (en) * 1977-05-16 1978-12-11 Kobe Steel Ltd Method and device for supplying and circulating cleaning balls to tubular film separator
JPS57167777A (en) * 1981-04-09 1982-10-15 Osaka Gas Co Ltd Working method for inside of conduit
DE3211622A1 (de) * 1982-03-30 1983-10-06 Diga Die Gasheizung Gmbh Einrichtung zum einbringen bzw. ausbringen eines rohrmolches in ein bzw. aus einem teilstueck eines rohrleitungsnetzes
GB8333793D0 (en) * 1983-12-19 1984-01-25 Atomic Energy Authority Uk Liquid treatment apparatus
GB2200711A (en) * 1987-02-05 1988-08-10 Shell Int Research Pigging a dual diameter flow-line/riser system
FR2640717B1 (fr) * 1988-12-20 1991-04-05 Fmc Europe Vanne a deux voies destinee a etre montee en aval d'une conduite raclable de distribution de fluide
DE8908714U1 (zh) * 1989-06-27 1989-09-14 I.S.T. Molchtechnik Gmbh, 2000 Hamburg, De
GB2244780A (en) * 1990-05-16 1991-12-11 Phoenix Inspection Systems Lim A method and system for delivering an expansionary head
FR2702398B1 (fr) * 1993-03-12 1997-10-03 Steap Sarl Dispositif pour vidanger une tuyauterie contenant un fluide liquide ou pâteux.
JP6917635B2 (ja) * 2016-10-14 2021-08-11 株式会社日建 濾過処理装置
JP6315393B1 (ja) * 2016-10-31 2018-04-25 五洋建設株式会社 圧送管路の洗浄方法
CN110434132A (zh) * 2019-07-29 2019-11-12 中国石油天然气集团有限公司 一种非金属管道清管装置及其清管方法
CN110479709A (zh) * 2019-08-20 2019-11-22 四川大学华西第二医院 一种管腔清洗方法、器具和装置
CN113941559B (zh) * 2021-09-27 2023-03-10 宁波科尼管洁净科技有限公司 盘管清洗方法及其设备

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US1338562A (en) * 1918-03-25 1920-04-27 John R Doyle Valve
US3171148A (en) * 1962-06-07 1965-03-02 Socony Mobil Oil Co Inc System for the removal of pipe line clean-out members
US3364950A (en) * 1965-10-24 1968-01-23 Zajdler Andrew Hydraulic shock absorbers

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
US1338562A (en) * 1918-03-25 1920-04-27 John R Doyle Valve
US3171148A (en) * 1962-06-07 1965-03-02 Socony Mobil Oil Co Inc System for the removal of pipe line clean-out members
US3364950A (en) * 1965-10-24 1968-01-23 Zajdler Andrew Hydraulic shock absorbers

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016083A (en) * 1974-12-18 1977-04-05 Daicel, Ltd. Spirally-wound membrane-type separator module capable of reversing the direction of liquid flow
US4080289A (en) * 1975-02-28 1978-03-21 Hitachi, Ltd. And Hitachi Plant Engineering And Construction Co., Ltd. Apparatus for treating waste water or solution
US4198293A (en) * 1975-03-22 1980-04-15 Hitachi, Ltd. Tubular membrane separation process and apparatus therefor
US4060483A (en) * 1975-05-14 1977-11-29 Barzuza Y Method and apparatus for effecting the cleaning of a fluid filter
US4044418A (en) * 1975-06-06 1977-08-30 Daicel Ltd. Tube scrubbing apparatus
US4415022A (en) * 1982-02-18 1983-11-15 Water Services Of America, Inc. Mounting for heat exchanger tube cleaner capturing devices
US4726936A (en) * 1983-12-10 1988-02-23 Rheinische Braunkohlenwerke Ag. Apparatus for injecting a substance into a reaction vessel
US4820422A (en) * 1985-02-05 1989-04-11 Envirecon Services Limited Method for countering scale formation in fluid conduits
US5219244A (en) * 1991-02-13 1993-06-15 Fmc Corporation Subsea pipeline pig launching system
US5477318A (en) * 1992-09-16 1995-12-19 Nippondenso Co., Ltd. Apparatus for detecting a property of a liquid
US5890531A (en) * 1995-04-18 1999-04-06 Noram Engineering And Constructors Ltd. Apparatus for the self-cleaning of process tubes
US7368139B1 (en) * 2002-03-15 2008-05-06 Bronnert Herve X Aseptic processing system for fruit filling
US20070110864A1 (en) * 2005-10-27 2007-05-17 Galloway Company Pigging system
US7739767B2 (en) 2005-10-27 2010-06-22 Galloway Company Pigging system
US20080302389A1 (en) * 2007-06-06 2008-12-11 Orlande Sivacoe Pig pumping unit
US9296025B2 (en) * 2007-06-06 2016-03-29 Orlande Sivacoe Pig pumping unit
ITMI20100665A1 (it) * 2010-04-19 2010-07-19 Antonio Fiorentino Sistema meccanico per la prevenzione dei depositi calcarei basato su piccole sfere in movimento
EP2754643A1 (en) * 2013-01-10 2014-07-16 Rate International Oy Waste water filtering system and a method for filtering waste water
CN103447270A (zh) * 2013-08-02 2013-12-18 常士章 油田管线解堵方法
CN103721980A (zh) * 2013-12-17 2014-04-16 朱伟 小口径管道内壁清洗装置及其清洗方法
CN103721980B (zh) * 2013-12-17 2016-04-13 宁波科尼管洁净科技有限公司 小口径管道内壁清洗装置及其清洗方法
WO2015188272A1 (en) * 2014-06-09 2015-12-17 Back Porch Holdings Inc. On-line cleaning of a heat exchanger tubing using a brush and a flow diverter
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Also Published As

Publication number Publication date
JPS5226206Y2 (zh) 1977-06-14
GB1463421A (en) 1977-02-02
DE2419296A1 (de) 1974-11-07
FR2227491A1 (zh) 1974-11-22
JPS49150852U (zh) 1974-12-27
FR2227491B1 (zh) 1977-10-28

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