US1978015A - Apparatus and method of cleaning tanks containing fluid - Google Patents

Apparatus and method of cleaning tanks containing fluid Download PDF

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Publication number
US1978015A
US1978015A US464993A US46499330A US1978015A US 1978015 A US1978015 A US 1978015A US 464993 A US464993 A US 464993A US 46499330 A US46499330 A US 46499330A US 1978015 A US1978015 A US 1978015A
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tank
sediment
cleaning
pipes
liquid
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US464993A
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Peter M Erdman
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    • 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 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
    • B08B9/0933—Removing sludge or the like from tank bottoms
    • 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
    • Y10T137/8593—Systems
    • Y10T137/86348—Tank with internally extending flow guide, pipe or conduit

Definitions

  • My present invention relates to tank cleaning devices, and more particularly -to ⁇ devices for cleaning oil tanks and to a method of cleaning the same.
  • the objects-of my invention are: first, to provide a tank cleaning device for tanks whereby the sediment or other foreign matter may be removed from the bottom of ythe tank without the necessity of emptying'the same; second, to
  • ll provide a tank cleaning device whereby the entire area on the bottom of the tank is cleaned at one time; third, to provide a tank cleaning device whereby the sediment may be removed or loosened from the bottom of the tank and placed T-n suspension before removing the same; fourth, to provide a ltank cleaning device whereby a cleaning liquid may.
  • my invention consists of a certain novel method of Vand of ⁇ certain novell features of construction, combination and arrangement of parts and portions, as will be hereinafter described in detail and. particularly set l forth in the appended claims, Areference being Fig. Zlis a plan view of my Idevice positioned ina i tank for use, showing diagrammatically the suction pumpand asupply pipe for cleaning iluid;
  • Fig. 3 is a sectional view of one ofthenozzles and suction pipes taken at 3 3 of Fig. 2.
  • My tank cleaning device consists in one form essentially of a central head or manifold 1 hav ⁇ ing a number of pipes 2 extending radially therefrom, supports 3 for supporting the pipes, and an elbow 4 connecting the head 1 through the tank 5 to a discharge pipe 6.
  • the head or manifold 1 is supported on the bottom and in the center of the tank 5 by means of a flange 1a.
  • the head 1 is provided with a large central opening 1b into which the pipes 2 discharge.
  • the head 1 is provided with a number of flat sides to which flanges of the pipes 2 are secured and supported at their inner ends.
  • Said pipes extend substantially radially outwardly therefrom, as shown best in Fig. 2.
  • the pipes 2 are supported on the bottom of the tank at their outer ends by the supports 3, consisting of cross members provided' at the ends with downwardly extending legs which rest on the bottom of the tank. Extending outwardly and downwardlyfrom the pipes 2are ⁇ smaller or secondary pipes 2a.
  • nozzles 2b These pipes are flattened longitudinally at their outer ends to form nozzles 2b.
  • the pipes 2 are bent at their ends at substantially right angles toward'the.. side from which the pipes 2a pro-ject and are also iiattened longitudinally forming nozzles 2c'. ⁇ All of the pipes 2a project at an anglefrom their respective mainV pipes and with the nozzles 2b directed to cause circular motion of the liquid in the tank.
  • Y when suction is applied to the pipes, or ⁇ when fluid is forced out of the nozzles, the liquid at the bottom of the tank is made to circulate in the tank.
  • the liquid from the head 1 is discharged through an opening 5a, in the bottomrof the tank over which the iiange 1a of the head 1 is secured, and out through the pipe 6 which is connected with the opening 5a by means of the elbow 4.
  • the pipe 6 is connected to a T 7 which is in turn connected to valves 8 and 9, the valve 8 being connected toaJ suction pumpv 10 and the valve 9 to a liquid or steam supply pipe 11..
  • the liquid contained in the tank, that is to be withdrawn for use, is withdrawn through the pipe 12 which is positioned above the ⁇ pipes 2 and at the side ofthe tank 5.
  • valve 8 When it is desired to clean the bottom of the tank the valve 8 is opened and the suction pump 10 started. Because the pipes 2a all extend in a circular direction the liquid will be made to circulate about the bottom of the tank in a clockwise direction, when the pipes are arranged as shown. This circulation of the liquid agitates the sediment on the bottom of the tank and causes it to become loosened and suspended in the circulating liquid and consequently drawn out of the tank by means of the pump 10. After the larger part of the sediment is removed, the valve 8 is closed and the valve 9 opened allowing steam, water or other cleaning fluid to be forced into the tank through the nozzles 2b and 2c. In the.
  • a tank cleaning device the combination with a tank, of nozzles arranged at the bottom thereof to cause a circular movement of liquid at 'i the bottom of the tank by fluid discharged from "the nozzles or fluid entering the same, suction then forcing a cleaning fluid into the bottom of the tank, thereby loosening the remaining sediment from the bottom of the tank, and then removing said cleaning fluid and sediment in suspension therein.
  • a tank cleaning device the combination with a tank, of nozzles arranged at the bottom thereof to cause a circular movement of liquid at the bottom of the tank by uid discharged from the nozzle, discharge means connected to the ⁇ nozzles, cleaning fluid supply means connected to the nozzles, and valves for controlling the flow of the contents of the tank to the discharge means, and from the supply means to the ank.

Description

Oct. 23, 1934. P. M. ERDMAN 1,978,015
APPARATUS AND METHOD OF CLEANING TANKS CONTAINNG FLUID Filed June 30, 1930 11111''lll r 1111111114 l u anni! M ATTORN EY Patented ct. 23, 1934 UNrrlazo,STATES PATENT OFFICE APPARATUS AND METHOD OF CLEANING TANKS CONTAINING FLUID` Q i Peter M. Erdman, Los Angeles, Calif.
Application June 30, 1930, Serial No. 464,993
` 9 claims. (c1. 210;-209) My present invention relates to tank cleaning devices, and more particularly -to` devices for cleaning oil tanks and to a method of cleaning the same. i i The objects-of my invention are: first, to provide a tank cleaning device for tanks whereby the sediment or other foreign matter may be removed from the bottom of ythe tank without the necessity of emptying'the same; second, to
llprovide a tank cleaning device whereby the entire area on the bottom of the tank is cleaned at one time; third, to provide a tank cleaning device whereby the sediment may be removed or loosened from the bottom of the tank and placed T-n suspension before removing the same; fourth, to provide a ltank cleaning device whereby a cleaning liquid may. beforced over the bottom of the tank for loosening the sediment and washing the tank andthen removing the liquid and '20..sediment therefrom; fifth, to provide a tank cleaning device whereby `acircular motion of the sediment is caused, thereby placing the same in suspension before its removal;` sixth, to provide a tank cleaning device whichmay be readily installed, one which is simple and' economical of construction, durable, and which will not readily deteriorate or get 'out of order; and, seventh, to provide a novel` method of cleaning tanks.
With these and other objects inv View aswill `appear hereinafter, my invention consists of a certain novel method of Vand of `certain novell features of construction, combination and arrangement of parts and portions, as will be hereinafter described in detail and. particularly set l forth in the appended claims, Areference being Fig. Zlis a plan view of my Idevice positioned ina i tank for use, showing diagrammatically the suction pumpand asupply pipe for cleaning iluid;
and Fig. 3 is a sectional view of one ofthenozzles and suction pipes taken at 3 3 of Fig. 2.
Like characters of reference refer to similar parts and portions throughoutthe views of thev drawing. o 50.` My tank cleaning device consists in one form essentially of a central head or manifold 1 hav` ing a number of pipes 2 extending radially therefrom, supports 3 for supporting the pipes, and an elbow 4 connecting the head 1 through the tank 5 to a discharge pipe 6.
The head or manifold 1, in this instance, is supported on the bottom and in the center of the tank 5 by means of a flange 1a. The head 1 is provided with a large central opening 1b into which the pipes 2 discharge. To facilitatethe securing of the pipes 2 to the head 1, the head 1 is provided with a number of flat sides to which flanges of the pipes 2 are secured and supported at their inner ends. Said pipes extend substantially radially outwardly therefrom, as shown best in Fig. 2. The pipes 2 are supported on the bottom of the tank at their outer ends by the supports 3, consisting of cross members provided' at the ends with downwardly extending legs which rest on the bottom of the tank. Extending outwardly and downwardlyfrom the pipes 2are` smaller or secondary pipes 2a. These pipes are flattened longitudinally at their outer ends to form nozzles 2b. The pipes 2 are bent at their ends at substantially right angles toward'the.. side from which the pipes 2a pro-ject and are also iiattened longitudinally forming nozzles 2c'.` All of the pipes 2a project at an anglefrom their respective mainV pipes and with the nozzles 2b directed to cause circular motion of the liquid in the tank. Thus, Ywhen suction is applied to the pipes, or `when fluid is forced out of the nozzles, the liquid at the bottom of the tank is made to circulate in the tank.
The liquid from the head 1 is discharged through an opening 5a, in the bottomrof the tank over which the iiange 1a of the head 1 is secured, and out through the pipe 6 which is connected with the opening 5a by means of the elbow 4. The pipe 6 is connected to a T 7 which is in turn connected to valves 8 and 9, the valve 8 being connected toaJ suction pumpv 10 and the valve 9 to a liquid or steam supply pipe 11.. 'The liquid contained in the tank, that is to be withdrawn for use, is withdrawn through the pipe 12 which is positioned above the `pipes 2 and at the side ofthe tank 5.
Many fluids stored in tanks contain a great deal `of foreign matter that remains in suspen-` sion asjlong as the iiuid is agitated, but settles to the bottom of the tank in the form of sediment or scum when the liquid is allowed to remain at rest. With my device it is possible to remove such settledr sediment or scum and other foreign matter from the bottom of the tank and then wash the bottom of the tank without removing any material part of the liquid contained therein.
When it is desired to clean the bottom of the tank the valve 8 is opened and the suction pump 10 started. Because the pipes 2a all extend in a circular direction the liquid will be made to circulate about the bottom of the tank in a clockwise direction, when the pipes are arranged as shown. This circulation of the liquid agitates the sediment on the bottom of the tank and causes it to become loosened and suspended in the circulating liquid and consequently drawn out of the tank by means of the pump 10. After the larger part of the sediment is removed, the valve 8 is closed and the valve 9 opened allowing steam, water or other cleaning fluid to be forced into the tank through the nozzles 2b and 2c. In the. case of oil tanks, steam is used since the heat of the steam dissolves and loosens the gummy oilA more easily than would a liquid. This fluid will circulate in a counterclockwise direction or a direction opposite to that when being Withdrawn. When the steam or other cleaning uid has loosened the dirt and sediment and caused the same to become suspended, the valve 9 is closed and the valve 8 again opened, and the cleaning fiuidthuswithdrawn, removing any sediment or foreign matter with it. This process is repeated asl many times as necessary to thoroughly clean the tank of sediment or other foreign matter.
Though I have shown and described a particular construction, combination and arrangementof lparts' and portions of my apparatus and certainsteps of my method of cleaning tanks, I do not wish to be limited to this particular construction, combination and arrangement of parts and portions, nor to the particular method, but desire to include in the scope of my invention the construction, combination and arrangement of elements and the method substantially as set forth in the appended claims.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:
1'. In a tank cleaning device, the combination I with attank', of a manifold positioned at the botpipe.
2. In atank cleaning device, the combination with a tank, of a manifold positioned at the bottom'Y of the tank, said manifold having a multiplicit'yof pipes extending substantially radially therefrom, said pipes having a multiplicity of "openings, all of said openings opening in substantially the same general direction with respect tothe side Wall of said tank, a discharge pipe connected to the manifold and provided with H,valvemeans for connecting the same to either Ya suction pump or a fluid supply pipe.
3. In a tank cleaning device, the combination with a tank, of nozzles arranged at the bottom thereof to cause a circular movement of liquid at 'i the bottom of the tank by fluid discharged from "the nozzles or fluid entering the same, suction then forcing a cleaning fluid into the bottom of the tank, thereby loosening the remaining sediment from the bottom of the tank, and then removing said cleaning fluid and sediment in suspension therein.
5. The herein described method of cleaning tanks containing fluid and having sediment on the bottom of the tank, consisting in causing a circular motion of the sediment by forcing a cleaning uid into the bottom of the tank, the circular motion agitating sediment and placing the same in suspension, then reversing the direction of circulation by removing the fluid containing the suspended sediment.
6. The herein described method of cleaning oil and similar tanks containing a liquid and having gummy sediment at the bottom of the tank, consisting in forcing steam in a circular direction into thebottom portion of the tank for heating and loosening the gummy sediment and causing the same to swirl and to be placed in suspension, and then reversing the direction of circulation of the liquid at the bottom of the tank and the sediment in suspension therein by removing the portion of the liquid containing the suspended sediment.
7. The herein described method of cleaning oil and similar tanks containing a liquid and having gummy sediment at the bottom of the tank, consisting in forcing steam in a circular direction into the bottom portion of the tank for heating and loosening the gummy sediment and causing the same t-o swirl and to be placed in suspension, and. then removing the condensed steam and sediment by. suction.
8. In a tank cleaning device, the combination with a tank, of nozzles arranged at the bottom thereof to cause a circular movement of liquid at the bottom of the tank by uid discharged from the nozzle, discharge means connected to the` nozzles, cleaning fluid supply means connected to the nozzles, and valves for controlling the flow of the contents of the tank to the discharge means, and from the supply means to the ank.
9. The method of cleaning -oil and similar tanks containing a liquidand having gummy sediment at thebottom ofthe tank, consisting in forcing steam in a circular direction into the bottom portion of the tank for heaing and loosening the gummy sediment. and causing the same to swirl and be placed in suspension, and then removing the condensed .steam and sediment.
- PETER M. ERDMAN.
US464993A 1930-06-30 1930-06-30 Apparatus and method of cleaning tanks containing fluid Expired - Lifetime US1978015A (en)

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Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580547A (en) * 1946-12-27 1952-01-01 Joseph D Hollcrcft Self-cleaning gas safety tank
US2638224A (en) * 1947-05-29 1953-05-12 Gorman Rupp Co Apparatus for cleansing septic tanks
US2702786A (en) * 1952-02-27 1955-02-22 Carlton J Hakes Iron precipitator
US2909111A (en) * 1958-01-14 1959-10-20 Gotaas Larsen Inc Tanker ventilating and drying system
US3067069A (en) * 1958-03-27 1962-12-04 Standard Oil Co Removal of liquid hydrocarbons from empty compartments of ocean-going tankers
US3074078A (en) * 1959-07-06 1963-01-22 Sigurd F Varian Swimming pool cleaning method and apparatus
US3662780A (en) * 1967-10-31 1972-05-16 Robert E Marsh Fluid flow directing structure for pressure vessel
US3762395A (en) * 1970-03-04 1973-10-02 Anthes Eastern Ltd Device for preventing sediment build-up in gas water heaters
US3874399A (en) * 1972-07-03 1975-04-01 Fuji Oil Co Ltd Delivery system for high melting point oils in a tank
JPS5212757A (en) * 1975-07-21 1977-01-31 Kagaku Gijutsu Shinkoukai Clarification of petroleum (oil) sludge
US4319605A (en) * 1978-11-30 1982-03-16 Jacques Boudin Pressure equalization means
US4580597A (en) * 1985-04-15 1986-04-08 Monsanto Company Fluid distribution system
US4685974A (en) * 1980-09-12 1987-08-11 Butterworth Systems, Inc. Method for clearing settled sludge
US4838211A (en) * 1983-05-25 1989-06-13 State Industries, Inc. Water heater construction and method of heating water
US4945933A (en) * 1988-04-11 1990-08-07 Serv-Tech, Inc. Liquid circulator useful for dispersing sediment contained in a storage tank
US4986293A (en) * 1987-10-27 1991-01-22 Netzsch Mastermix Limited Cleaning system
US5445173A (en) * 1994-07-18 1995-08-29 Matrix Service, Inc. System for stirring and thereby reducing build up of bottom sediments in a storage tank
US5460331A (en) * 1994-06-17 1995-10-24 Serv-Tech, Inc. Apparatus for dispersion of sludge in a crude oil storage tank
WO1997041976A1 (en) * 1996-05-03 1997-11-13 Lindenport S.A. Method and device for liquefying thickened crude oil sediments
US6481885B2 (en) * 1998-10-12 2002-11-19 Petrojet International Hydrodynamic stirring device and lance
WO2003008118A1 (en) * 2001-07-19 2003-01-30 Lindenport S.A. Method and device for producing turbulences and the distribution thereof
US20040226587A1 (en) * 2003-05-16 2004-11-18 Michel Lemire Sand removal system
US20050035071A1 (en) * 2001-10-18 2005-02-17 Tolley Derek Colin Distribution and collection headers for a filter bed
WO2006079931A1 (en) * 2005-01-25 2006-08-03 Aker Kvaerner Process Systems A.S Vessel flushing system
US20100110825A1 (en) * 2008-11-05 2010-05-06 Arag S.R.L. Mixer for desedimentation of the precipitate in vats for containing at least one suspension for agricultural use
US20100133206A1 (en) * 2008-11-20 2010-06-03 George Schade Garnet extraction system and method for using the same
US20130333778A1 (en) * 2012-06-13 2013-12-19 Automatic Switch Company Manifold for flow distribution
CN105127135A (en) * 2015-09-29 2015-12-09 云南大红山管道有限公司 Slurry flushing device
CN105665391A (en) * 2016-02-25 2016-06-15 晟通科技集团有限公司 Self-cleaning system of oil tank
US10130977B1 (en) * 2015-08-31 2018-11-20 Joseph James McClelland Elevated potable water tank and tower rotary cleaning system

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580547A (en) * 1946-12-27 1952-01-01 Joseph D Hollcrcft Self-cleaning gas safety tank
US2638224A (en) * 1947-05-29 1953-05-12 Gorman Rupp Co Apparatus for cleansing septic tanks
US2702786A (en) * 1952-02-27 1955-02-22 Carlton J Hakes Iron precipitator
US2909111A (en) * 1958-01-14 1959-10-20 Gotaas Larsen Inc Tanker ventilating and drying system
US3067069A (en) * 1958-03-27 1962-12-04 Standard Oil Co Removal of liquid hydrocarbons from empty compartments of ocean-going tankers
US3074078A (en) * 1959-07-06 1963-01-22 Sigurd F Varian Swimming pool cleaning method and apparatus
US3662780A (en) * 1967-10-31 1972-05-16 Robert E Marsh Fluid flow directing structure for pressure vessel
US3762395A (en) * 1970-03-04 1973-10-02 Anthes Eastern Ltd Device for preventing sediment build-up in gas water heaters
US3874399A (en) * 1972-07-03 1975-04-01 Fuji Oil Co Ltd Delivery system for high melting point oils in a tank
JPS5212757A (en) * 1975-07-21 1977-01-31 Kagaku Gijutsu Shinkoukai Clarification of petroleum (oil) sludge
JPS541322B2 (en) * 1975-07-21 1979-01-23
US4319605A (en) * 1978-11-30 1982-03-16 Jacques Boudin Pressure equalization means
US4685974A (en) * 1980-09-12 1987-08-11 Butterworth Systems, Inc. Method for clearing settled sludge
US4838211A (en) * 1983-05-25 1989-06-13 State Industries, Inc. Water heater construction and method of heating water
US4580597A (en) * 1985-04-15 1986-04-08 Monsanto Company Fluid distribution system
US4986293A (en) * 1987-10-27 1991-01-22 Netzsch Mastermix Limited Cleaning system
US4945933A (en) * 1988-04-11 1990-08-07 Serv-Tech, Inc. Liquid circulator useful for dispersing sediment contained in a storage tank
US5542984A (en) * 1994-06-17 1996-08-06 Serv-Tech, Inc. Method for dispersion of sludge and for preparing a circulator for dispersing sludge
US5460331A (en) * 1994-06-17 1995-10-24 Serv-Tech, Inc. Apparatus for dispersion of sludge in a crude oil storage tank
EP0697252A1 (en) 1994-07-18 1996-02-21 Matrix Service, Inc. A system for stirring and thereby reducing build up of bottom sediments in a storage tank
US5445173A (en) * 1994-07-18 1995-08-29 Matrix Service, Inc. System for stirring and thereby reducing build up of bottom sediments in a storage tank
WO1997041976A1 (en) * 1996-05-03 1997-11-13 Lindenport S.A. Method and device for liquefying thickened crude oil sediments
AU727169B2 (en) * 1996-05-03 2000-12-07 Lindenport S.A. Method and device for liquefaction of sediments of thickened crude oil
US6217207B1 (en) 1996-05-03 2001-04-17 Lindenport S.A. Current creating device and method for liquefaction of thickened crude oil sediments
US6481885B2 (en) * 1998-10-12 2002-11-19 Petrojet International Hydrodynamic stirring device and lance
WO2003008118A1 (en) * 2001-07-19 2003-01-30 Lindenport S.A. Method and device for producing turbulences and the distribution thereof
US7117878B2 (en) 2001-07-19 2006-10-10 Lindenport S.A. Method and device for producing turbulences and the distribution thereof
US20050035071A1 (en) * 2001-10-18 2005-02-17 Tolley Derek Colin Distribution and collection headers for a filter bed
US20080099413A1 (en) * 2001-10-18 2008-05-01 Tolley Derek C Method of Filtering Liquid Media
US7341662B2 (en) * 2001-10-18 2008-03-11 Derek Colin Tolley Distribution and collection headers for a filter bed
US20040226587A1 (en) * 2003-05-16 2004-11-18 Michel Lemire Sand removal system
WO2006079931A1 (en) * 2005-01-25 2006-08-03 Aker Kvaerner Process Systems A.S Vessel flushing system
US20100110825A1 (en) * 2008-11-05 2010-05-06 Arag S.R.L. Mixer for desedimentation of the precipitate in vats for containing at least one suspension for agricultural use
US20100133206A1 (en) * 2008-11-20 2010-06-03 George Schade Garnet extraction system and method for using the same
US20130333778A1 (en) * 2012-06-13 2013-12-19 Automatic Switch Company Manifold for flow distribution
US8789561B2 (en) * 2012-06-13 2014-07-29 Automatic Switch Company Manifold for flow distribution
US10130977B1 (en) * 2015-08-31 2018-11-20 Joseph James McClelland Elevated potable water tank and tower rotary cleaning system
CN105127135A (en) * 2015-09-29 2015-12-09 云南大红山管道有限公司 Slurry flushing device
CN105127135B (en) * 2015-09-29 2017-11-07 云南大红山管道有限公司 A kind of mud flush device
CN105665391A (en) * 2016-02-25 2016-06-15 晟通科技集团有限公司 Self-cleaning system of oil tank
CN105665391B (en) * 2016-02-25 2018-06-29 晟通科技集团有限公司 Fuel tank self-cleaning system

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