CN1231390C - Oil-water separatior for separating micro-seston of bilge - Google Patents
Oil-water separatior for separating micro-seston of bilge Download PDFInfo
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- CN1231390C CN1231390C CN 02149333 CN02149333A CN1231390C CN 1231390 C CN1231390 C CN 1231390C CN 02149333 CN02149333 CN 02149333 CN 02149333 A CN02149333 A CN 02149333A CN 1231390 C CN1231390 C CN 1231390C
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- treatment device
- oil
- suspended solid
- bilge
- single treatment
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Abstract
The present invention discloses an oil-water separator for separating a micro-seston of a bilge. The present invention is composed of a first time treatment device and a second time treatment device, wherein the first time treatment device is set to the preceding stage, rough separates oil molecules by gravity separation, and removes micro-sestons, such as mud, sand, etc. by sand filtration; the second time treatment device finally separates the residual oil molecules in emulsion after removed and treated by the preceding stage by the gravity separation and a coalescer which is arranged at space of the lower part of the second time treatment device, so that treated water with the oil molecule concentration under a discharge limiting value is discharged outside a ship body from a discharging device.
Description
Technical field
The present invention relates to a kind of oily water separating installation, more particularly, relate to the oily water separating installation of a kind of bilge with the small suspended solid of separation.
Background technology
Traditional boats and ships oily water separating installation mainly is the gravity separation mode, coalescer mode and adsorption separation device.Navigating by water in the boats and ships in muddy water territory, owing to contain small silt particle in the navigation channel, certainly, also contain solid matters such as a large amount of this small sand mud in the indoor bilge of locomotive, when handling this bilge with traditional oily water separating installation, these small solid matters can cause the gravity separation degradation, baneful influences such as coalescer or sorbing material obstruction, oily water separating installation occurs and can not give full play to function, the concentration of oil of handling water is difficult to reach the following situation of effluent standard.
Summary of the invention
A kind of bilge that the purpose of this invention is to provide the stable profit handling property of a kind of energy long term maintenance is with separating the small oily water separating installation that swims.
The present invention is when processing contains the emulsion of these small suspended solids, separate in advance, remove general oily water separating installation the small suspended solid that can not handle, thereby reach the purpose of keeping handling property steady in a long-term.Small suspended solid is meant to contain and for example navigates by water in a large number in muddy water or (rivers and creeks, the stable emulsion of chemical property of solid matters such as fine sand that produces in the locomotive chamber of the boats and ships lake, canal etc.) or mud and contained miniaturization in inhibiter of sneaking into the bilge etc.
The present invention filters by adopt sand in pretreatment, removes these small suspended solids in advance, alleviates the load of back level oil water separator, prevents the harmful effect that these suspended solids cause, and keeps the stable performance of deoiling.
For achieving the above object, structure of the present invention is: be made up of single treatment device and reheat treatment device, the single treatment device is arranged at prime, by gravity separation oil content is carried out roughing out, rely on sand to filter again and remove mud, the residual turbid branch of emulsion that small suspended solid such as sand, reheat treatment device are used for removing through prime after handling separates at last, removes.
Among the present invention, be located at the single treatment device of prime, by gravity separation oil content carried out roughing out earlier, filter by sand again and remove small suspended solid.
One space is arranged at the top at the single treatment device that is positioned at the emulsion inlet, and the emulsion that flows into this space is in laminar condition, and according to Stokes' law, the oil content of big particle can float in the emulsion, separates.The separated separating oil that is trapped in the device topmost is detected by the oil content detector, and after detecting, the draining valve of opening automatically is with the separation oil groove of separating oil row outside device.
And, being three layers of filter sand of crossing that disposes 3 kinds of different grain sizes and proportion to the bottom from the middle part of installing, the emulsion after by gravity separation the coarse grain oil content being removed flows downward under laminar condition, flows through this three layer filtration sand, and small suspended solid is filtered out.
The reheat treatment device be rely on gravity separation and coalescer with oil and moisture from, the concentration of oil of handling water is handled to the emission limit set value, at the upper space that is arranged in the reheat treatment device portal, carry out the gravity separation identical with the single treatment device, allow the coarse grain oil content that flows out from the single treatment device floating, separate, be trapped in the separating oil in topmost space after separated, sensible oil level detection device and the draining valve identical, the separation oil groove of row outside device automatically with the single treatment device.
Lower space at the reheat treatment device is equipped with coalescer, the emulsion that contains the small oil content handled of finally failing flows in the coalescer, by coalescer, captures the small oil content that condenses in coalescer, its ascent rate of growing into the coarse grain oil content and improving oil content be can make, its come-up and separation made.Equally, rest on the separating oil in topmost space, drain into the outer separation oil groove of device automatically by oil level detection device and draining valve.
Description of drawings
Fig. 1 is the constructional drawing of expression one embodiment of the present of invention;
Fig. 2 is the scheme drawing of the oily water separating installation of different embodiments of the invention.
The specific embodiment
The present invention will be described in detail below in conjunction with the drawings and specific embodiments.
In Fig. 1,1 is the single treatment device, and it is the reheat treatment device that sand filter layer 3,10 is set in its underpart, and convection tube 8 links to each other with reheat treatment device 2 with single treatment device 1,, in the bottom of reheat treatment device 10 coalescer 19 is installed.
Before work, in single treatment device 1 and reheat treatment device 10, inject clear water in advance, when single treatment device 1 and reheat treatment device 2 are full of clear water, by blow off valve 6 and 13 air in single treatment device 1 and the reheat treatment device 2 is emitted automatically, and blow off valve 6 and 13 also has the effect that the air that is blended into single treatment device 1 and reheat treatment device 2 in the operational process is emitted automatically.
By pump etc. profit is supplied with single treatment devices 1 by profit inlet 2, thick liquid flows downward with laminar flow at the upper space of primary device 1.Because oil is different with the granularity of the difference in specific gravity of water and oil content, ascent rate is higher than the coarse grain oil content of decline flow velocity, and is then upwards floating according to Stokes' law, rests on the topmost of single treatment device 1 with being separated into separating oil.
Top one side of the primary device 1 that is detained in separating oil is equipped with oil level detection device 4, can detect the position of the pasta that is trapped in single treatment device 1 topmost by oil level detection device 4.Equally, opposite side on single treatment device 1 top, be provided with the oil drain tube 5a that links to each other with draining valve 5, when the pasta position of the oil that stops when single treatment device 1 topmost reached setting height, according to the signal that sends from oil level detection device 4, draining valve 5 was opened automatically, separating oil is arranged outside single treatment device 1 by oil drain tube 5a, flow to the separation oil groove, when the separating oil discharging finishes, draining valve 5 SELF CL.
Emulsion after the coarse grain oil content being removed of the top of single treatment device 1 flows into the sand filter layer 3 that is configured in single treatment device 1 bottom with laminar flow.Below the sand filter layer 3 filtering net is installed, loses, for example, uses three kinds to cross filter sand to prevent to filter sand flow, upper strata and middle level configuration granularity little cross filter sand, lower floor's configuration granularity bigger cross filter sand, in support, the middle level is crossed filter sand and is prevented its loss.
Emulsion flows into sand filter layer 3, and its contained small suspended solid is filtered by sand filter layer 3.Emulsion after the filtration flows into convection tube 8, and flows to reheat treatment device 10 by the disconnecting valve 9 that is located on convection tube 8 pipelines.
The small oil content of sand filter layer 3 is stayed in filter, because combination between elaioleucite, forms emersion sand filter layer 3 behind the coarse grain oil content in the sand filter layer.The coarse grain oil content of come-up, be trapped in the topmost of single treatment device 1 as separating oil, and the small solid that is filtered still rests on the sand filter layer 3, and when the resistance that causes sand filter layer 3 thus (Δ P) increases, by stopping to import emulsion, close the disconnecting valve 9 that is located on convection tube 8 pipelines, open the backwash valve 7 that is located at single treatment device foot one side, inject clear water from single treatment device 1 bottom, clear water can be discharged single treatment devices 1 and recovery from profit inlet 2 with the small solid matter and the oil content that are trapped in sand filter layer 3 like this by flowing through sand filter layer 3 with common opposite direction.By carrying out this backwash operation, can use sand filter layer 3 for a long time.
Importing the emulsion of reheat treatment device 10 through disconnecting valve 9 that single treatment device 1 was handled from convection tube 8, also there were filter sand and fine effluents such as solid, and, also sneaked into a certain amount of these materials when unfiltered fine oil content flows out with the oil content that is trapped in sand filter layer 3 bottoms.Enter the emulsion of reheat treatment device 10, at first upwards flow, by the top of vertical division board 14.At this moment, contain in the emulsion cross the great tramp material of filter sand geometric ratio precipitated, separate, and in time from sludge outlet 16 rows outside device, inject the greasy filth groove.Oarse-grained oil content then leans on upwards flowing of emulsion to improve its ascent rate, floats to the topmost and the separation of reheat treatment device 10.
Top one side of the reheat treatment device 10 of these separating oil is arranged in delay, oil level detection device 11 is installed, it can detect the oil level of the separating oil that is trapped in reheat treatment device 10 topmosts.Equally, at the top of secondary separation device 10 opposite side, the oil drain tube 12a that links to each other with draining valve 12 is installed, when the oil level of the separating oil that is trapped in disengagement gear 10 topmosts reaches the height of setting, according to signal from oil level detection device 11, automatically open draining valve 12, separating oil is drained into outside the secondary separation device 10 by oil drain tube 12a, flow into and separate oil groove, and, when the separating oil discharging finishes, draining valve 12 SELF CL.
Emulsion after coarse grain oil content and solid are removed flows downward from the top of vertical division board 14, through connection pipe 17, through filter 18 small solid is removed back coalescer 19 again, emulsion is by coalescer 19, wherein contained small oil content is captured by coalescer 19, and concentration of oil is reached below the emission limit set value, then from passing through the processing water out 22 in secondary separation device 10 bottoms one side, the vertically arranged row of conduits of process is outside hull, thereby the pressure in the holding device is constant.
Be captured to receive the small oil content formation coarse grain bonded to one another oil content in the coalescer 19, improved the ascent rate of elaioleucite thus, float to lateral isolation plate 15 and separation.Be trapped in the separating oil below the lateral isolation plate 15, detect the oil level positions by the oil level detection device 20 that is located at secondary separation device 10 1 sides; When the pasta position reaches setting height, rely on signal from oil level detection device 20, draining valve 21 is opened automatically, separating oil is discharged secondary separation device 10 and is flowed into separate oil groove.When the separating oil discharging finishes, draining valve 21 SELF CL.
Fig. 2 is the oily water separating installation scheme drawing of different embodiments of the invention.
Preferred pipeline jointing construction shown in the embodiment 1 shown in above-mentioned embodiment, flows to the oily water separating installation of obtaining the pattern permission of reheat treatment device from the sand filtering installation of single treatment device.
Pipeline jointing construction shown in the embodiment 2 is to allow the processing water of sand filtering installation of single treatment device be stored in temporarily in the storage groove, goes into the oily water separating installation of the type that the obtains permission of reheat treatment device again from the storage concentrated flow.Adopt this frame mode to need two charge pumps, therefore operation waits more complicated than embodiment 1.
Pipeline jointing construction shown in the embodiment 3 is the sand filtering installation that flows to the single treatment device from the oily water separating installation of obtaining the pattern permission of reheat treatment device.By this frame mode, be contained in interior filter of reheat treatment device and the coalescer and can accumulate minim, need maintenance continually.
Pipeline jointing construction shown in the embodiment 4, be to allow processing water in the type that the obtains permission oily water separating installation of reheat treatment device, be stored in temporarily in the storage groove, go into the sand filtering installation of single treatment device again from the storage concentrated flow, by this frame mode, not only need two charge pumps, and be contained in filter in the reheat treatment device and the coalescer and can accumulate small solid, need frequently maintenance.
According to structure of the present invention, by prime at the reheat treatment device, the flash liberation device of sand filter layer is equipped with in configuration, can separate the profit that contains a large amount of small suspended solids for a long time efficiently, and can be with concentration of oil handling to the emission limit set value stably.
Claims (3)
1. the bilge is with the oily water separating installation that separates small suspended solid, by carrying out the oil content roughing out and filtering the single treatment device of small suspended solid and concentration of oil is reached below the effluent standard, obtain the reheat treatment device of form permission forms by the IMO international standard, it is characterized in that, described reheat treatment device inside is provided with the fore and aft diaphragm that its inside is divided into the lateral partitions of upper space and lower space and is arranged in the upper space and intersects with lateral partitions, and space, described upper and lower part communicates by the connection pipe with filter.
2. the bilge according to claim 1 oily water separating installation that separates small suspended solid is characterized in that,
The outlet of described single treatment device directly is connected by convection tube with the inlet of described reheat treatment device;
Described single treatment device is as the prime of described oily water separating installation, and portion is equipped with the sand filtering installation of the small suspended solid of main processing within it.
3. the bilge according to claim 1 oily water separating installation that separates small suspended solid, it is characterized in that, described small suspended solid is meant small solid such as containing silt particle and owing to the emulsion of the oil content of sneaking into the stable chemical performance that inhibiter produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149333 CN1231390C (en) | 2002-12-31 | 2002-12-31 | Oil-water separatior for separating micro-seston of bilge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149333 CN1231390C (en) | 2002-12-31 | 2002-12-31 | Oil-water separatior for separating micro-seston of bilge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1513725A CN1513725A (en) | 2004-07-21 |
| CN1231390C true CN1231390C (en) | 2005-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02149333 Expired - Lifetime CN1231390C (en) | 2002-12-31 | 2002-12-31 | Oil-water separatior for separating micro-seston of bilge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1231390C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654150B (en) * | 2009-09-17 | 2010-11-17 | 东台市东方船舶装配有限公司 | Method for separating and processing marine oily water and processing device thereof |
| CN101907115B (en) * | 2010-08-27 | 2012-12-05 | 哈尔滨市航天合成润滑油有限公司 | Device for purifying waste hydraulic oil |
| CN103523858B (en) * | 2012-07-03 | 2015-07-15 | 烟台中集来福士海洋工程有限公司 | Marine outer deck falling water cabin oil sewage treatment system and treatment method |
| CN108862469B (en) * | 2018-07-11 | 2021-08-06 | 海盐久力零部件科技有限公司 | Domestic sewage oil-water separator |
-
2002
- 2002-12-31 CN CN 02149333 patent/CN1231390C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1513725A (en) | 2004-07-21 |
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