GB2193955A - Liquid separator - Google Patents
Liquid separator Download PDFInfo
- Publication number
- GB2193955A GB2193955A GB08620032A GB8620032A GB2193955A GB 2193955 A GB2193955 A GB 2193955A GB 08620032 A GB08620032 A GB 08620032A GB 8620032 A GB8620032 A GB 8620032A GB 2193955 A GB2193955 A GB 2193955A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compartment
- separator
- tank
- liquid
- sleeve
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/045—Separating means for recovering oil floating on a surface of open water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Removal Of Floating Material (AREA)
Abstract
A device having two compartments to enable the separation of a substance floating on a liquid body using a system of overshot and undershot weirs. The separated materials are delivered into individual containers. Provision is made for a number of embodiments to enable the separator to operate under various adverse conditions which may be encountered at sea. <IMAGE>
Description
SPECIFICATION
Separator
This invention relates to the separation of materials floating on the surface of a liquid body.
One particular application of the separator would be as a means of recovering oil from the- surface of sea water, thus facilitating protection of the environment, as well as permitting recovery and possible re-use of the floating materials. Many different types and methods of separation exist but the applicant believes that the present invention provides a novel separating device which will have useful advantages.
According to the present invention such a device includes a first compartment adapted to receive liquid containing a floating fraction to be separated therefrom, a second compartment to receive the liquid following separation in whole or in part of the fraction, means situated at relatively low level to allow liquid flow from the first to the second compartment, an inlet for the untreated liquid to enter the first compartment at high level relative to the means and a zone at highlevel in the first compartment for the accumulation of the fraction subsequent to its removal from the first - compartment.
Further according to the invention the first compartment is a sleeve or jacket surrounding a central tank constituting the second compartment.
-Also according to the invention the inlet for the untreated liquid is one or more# gutters spiralling down the side wall of the central tank and located within the sleeve.
According also to the invention the space between the sleeve and the central tank is provided with a frusto-conical top and the communication means between the space and the central tank is located low down in the tank to limit in-rush of liquid from the space to the tank when the tank is tilted.
Provision is also made for suspending the separator in a suitable gimbal arrangement.
Provision is also made for a suitable cowl over the tank or central compartment to prevent water from falling into the separated material should the device be tilted.
The above and other aspects of the invention will now be described with reference to the accompanying drawings which show some embodiments of the invention designed principally to separate oil from water.
In the drawings:
Figure 1 is a vertical section on the line
A-A of Fig. 2;
Figure 2 is a plan of the line of B-B of figure 1;
Figure 3 is a fragmentary section of the collecting gutter zone;
Figure 4 is a diagrammatic vertical view of a separator suspended from a gimbal;
Figure 5 is a vertical section of a second form of separator in accordance with the invention;
Figure 6 is a vertical section of-a third embodiment of the invention;
Figure 7 is a plan view or the arrangement of Fig. 6;
Figure 8 is a longitudinal section of the sep- arator of the third embodiment;
Figure 9 is a cross-section of the inlet to the separator of Figs. 6-8.
Referring to the separator shown in Figs. 1 to 4, the separator 5 is formed as.a double walled tank providing a central or inner tank 6 and an outer sleeve or jacket 7, Communi-.
cation between the central tank 6 and the outer sleeve 7 is provided at low level so that sea water may pass from the sleeve to the, central tank in the direction of arrows 8. A; roofing 9 is provided for the top of the separator and sea water enters the sleeve of the separator in the direction of arrows 10 through suitable hoses connected to spiraled guttering 11. Roofing 9 insofar as: it covers the top of tank 6 is perforated suitably to allow normal atmospheric pressure to be maintained above the water level in the tank.
The separator is equipped with a peripheral gutter 12 which acts as an oil collector for.oil escaping from the top zone of the sleeve.7 in the direction of arrows 13. Sea water is intended to be removed from the central tank 6 through ducts 14 in the direction of arrows 15.
In the example under consideration the separator may be housed in a suitable---vessel? through gimbal arrangements 16. Where-a- stretch of sea water has been polluted with oil a special skimmer device may be towed behind towing vessels and the skimmed ma- terial is then fed into the separatqr along hoses shown by reference 17.
Immediately the skimmed material enters the sleeve or jacket 7 the light material, e.g. oit, starts accumulating in the zone 18--and ultimately starts over-flowing in the -direction iof arrows 13 into the gutter 12. Meanwhile'the water, substantially freed of its ojl -content, is allowed to move progressively into the central tank from whence it is withdrawn-as prevj-.
ously described. The oil fractionin the-gutter 12 may be carried away in hoses linked to suitable exhaust ports 19.
The nature and disposition of the #apertures through which sea water may pass from the sleeve 7 to the central tank 6 will doubtless be factors depending on the anticipated wave motion which could be encountered and this will also apply to the side walls of the peripheral gutter 12. Reference 20 indi.eates web-members used for reinforcing purposes where the tank is apertured to provide communication with the interior of the jacket 7.
In the second example as shown in Fig. 5 a central tank 21 is surrounded by an inverted frusto-conical sleeve 22 and a large gutter 23
surrounding the sleeve 22. This arrangement
could be preferred where operations in. heavy
swells may be anticipated. Fig. 5 also shows the cowling to inhibit- water splashing into the
separated oil when the invention is tilted to
not more than 30 degrees.
The separator of the invention is of simple
construction but seemingly suitable for the re
moval of oil from sea water even in relatively
rough weather conditions. Its use in other
separating activities is not precluded.
In some sea water areas the specific gravity
of the water and oil thereon are so matched
that the oil might have a.tendency to sink to
a small extent. This situation could adversely
affect the operation of the separator of the
invention and in order to avoid this happening
the invention allows for the use of an evapo
rator. The evaporator would serve to provide
a heavy residue -which could be added to the
inflow to the separator to ensure that the oil
is maintained on the surface of the water. Ob
viously the evaporator could also be used to
provide fresh water.
In the example shown in Figs; 6 to 9 a
separator is illustrated which is substantially different to the arrangement involved in the first embodiment. In this latter case, there is a
general housing 24 which is provided with a
suitable roof and within this housing there are
chambers 25- and 26 separated by down~
wardly depending baffles 27. Gutters 28.per- mit any oil polluted water to pass into cham
ber 26 from a collecting point and in chamber
26 the oil tends to rise. -The hatched areas in
these chambers is intended to indicate the se
parated oil and this oil decants into the central
tank 30. Meanwhile the cleansed water flows
in the direction of arrows 31 into chambe#rs
25 and from thence in the direction of arrows
32 into a sump 33. This water will then be
removed from-the sump by# a pump or the
like.
Fig. 7 is a plan view of the separator
shown in Fig. 6.'Reference 34 indicates cross
baffles to limit the effect of wave action.
In the longitudinal section shown in Fig. 8
the openings 35 indicate the path #by which
the polluted liquid passes from the gutters 28
into the chambers 26. Fig. 9 gives clarity to
this scheme.
The embodiment shown in Figs. 6 to 9
could form the structure of a boat or the like
used to clear up dispersed oil on a water
body-. In such a case Figs. 6 and 7 preferably indicate beam sections while Fig. 8 would be
a fore and aft section.
Many more exam#ples of the invention exist
each differing from the other in matters of - -detail only..
Claims (7)
1. A separator including a first compart
ment adapted to receive liquid containing a floating fraction to be separated therefrom, a second compartment to receive the liquid following separation in whole or in part of the fraction means situated at relatively low level to allow liquid flow from the first to the second compartment, an inlet for the untreated liquid to enter the first compartment at high level relative to the means and a zone at,high level in the first compartment for the accumulation of the fraction subsequent to its removal from the first compartment.
2. The separator claimed in claim 1 in which the first compartment is a sleeve or jacket surrounding a central tank constituting the second compartment.
3. The separator claimed in claim 2 in which the inlet for the untreated liquid is discharged into one or more gutters spiralled down the side wall of the central tank and located within the sleeve, to inhibit distortion of the horizon betreen the two liquids.
4. The separator claimed in claim.2 in which the space between the sleeve and. the central tank is provided with a closed frustoconical top and the communication means between the space and the central tank is located low down in the tank to limit in-rush of liquid from the space to the tank when the tank is tilted.
5. The separator claimed in any of claims 2 to 4 including gimbal means for its suspension.
6. Separators substantially as herein described.
7. Separators substantially as herein described with reference to the accompanying drawings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8620032A GB2193955B (en) | 1986-08-18 | 1986-08-18 | Separator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8620032A GB2193955B (en) | 1986-08-18 | 1986-08-18 | Separator |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8620032D0 GB8620032D0 (en) | 1986-10-01 |
GB2193955A true GB2193955A (en) | 1988-02-24 |
GB2193955B GB2193955B (en) | 1991-02-06 |
Family
ID=10602851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8620032A Expired - Lifetime GB2193955B (en) | 1986-08-18 | 1986-08-18 | Separator |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2193955B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5340477A (en) * | 1992-12-03 | 1994-08-23 | Texaco Inc. | Produced water-oil separation tank for emulsions |
US6730222B1 (en) | 1999-04-15 | 2004-05-04 | Hydro International Plc | Hydrodynamic vortex separator |
RU219094U1 (en) * | 2023-04-24 | 2023-06-28 | Федеральное государственное бюджетное учреждение науки Институт проблем механики им. А.Ю. Ишлинского Российской академии наук (ИПМех РАН) | A device for lowering the water level with a layer of collected oil in the cavity of a cyclone-type skimmer |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB607332A (en) * | 1945-07-19 | 1948-08-30 | Josam Mfg Co | Improvements in or relating to grease interceptors |
GB1264782A (en) * | 1967-12-19 | 1972-02-23 | ||
GB2024192A (en) * | 1978-06-30 | 1980-01-09 | Pielkenrood Vinitex Bv | Flotation process |
GB2059936A (en) * | 1979-10-09 | 1981-04-29 | Red Fox Ind Inc | Activated sludge sewage disposal apparatus |
GB1596311A (en) * | 1977-02-04 | 1981-08-26 | Boc Ltd | Process and apparatus for the bacterial sludge treatment of aqueous waste material |
GB1602832A (en) * | 1978-05-31 | 1981-11-18 | Boc Ltd | Apparatus for the treatment of aqueous waste material having a biochemical oxygen demand |
US4483774A (en) * | 1984-03-16 | 1984-11-20 | Brill Eugene L | Oil concentrating method and apparatus |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB474940A (en) * | 1936-10-26 | 1937-11-10 | Edward William Green | Improvements in and relating to devices for separating oil from water contaminated therewith |
FR2441588A1 (en) * | 1978-11-17 | 1980-06-13 | Sofrance Sa | DEVICE FOR SEPARATING TWO LIQUID PHASES AND ITS APPLICATION TO THE SEPARATION OF HYDROCARBONS CONTAINED IN REJECTION WATER |
GB2158741B (en) * | 1984-05-14 | 1988-08-17 | Hydro Int Ltd | Separation of components of a fluid mixture |
-
1986
- 1986-08-18 GB GB8620032A patent/GB2193955B/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB607332A (en) * | 1945-07-19 | 1948-08-30 | Josam Mfg Co | Improvements in or relating to grease interceptors |
GB1264782A (en) * | 1967-12-19 | 1972-02-23 | ||
GB1596311A (en) * | 1977-02-04 | 1981-08-26 | Boc Ltd | Process and apparatus for the bacterial sludge treatment of aqueous waste material |
GB1602832A (en) * | 1978-05-31 | 1981-11-18 | Boc Ltd | Apparatus for the treatment of aqueous waste material having a biochemical oxygen demand |
GB2024192A (en) * | 1978-06-30 | 1980-01-09 | Pielkenrood Vinitex Bv | Flotation process |
GB2059936A (en) * | 1979-10-09 | 1981-04-29 | Red Fox Ind Inc | Activated sludge sewage disposal apparatus |
US4483774A (en) * | 1984-03-16 | 1984-11-20 | Brill Eugene L | Oil concentrating method and apparatus |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5340477A (en) * | 1992-12-03 | 1994-08-23 | Texaco Inc. | Produced water-oil separation tank for emulsions |
US6730222B1 (en) | 1999-04-15 | 2004-05-04 | Hydro International Plc | Hydrodynamic vortex separator |
RU219094U1 (en) * | 2023-04-24 | 2023-06-28 | Федеральное государственное бюджетное учреждение науки Институт проблем механики им. А.Ю. Ишлинского Российской академии наук (ИПМех РАН) | A device for lowering the water level with a layer of collected oil in the cavity of a cyclone-type skimmer |
Also Published As
Publication number | Publication date |
---|---|
GB2193955B (en) | 1991-02-06 |
GB8620032D0 (en) | 1986-10-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940818 |