CN104556446A - Multi-effect double-medium filter - Google Patents
Multi-effect double-medium filter Download PDFInfo
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- CN104556446A CN104556446A CN201410782123.5A CN201410782123A CN104556446A CN 104556446 A CN104556446 A CN 104556446A CN 201410782123 A CN201410782123 A CN 201410782123A CN 104556446 A CN104556446 A CN 104556446A
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- filter
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- backwash
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Abstract
The invention relates to a multi-effect double-medium filter; an inner primary filtering cylinder of the multi-effect double-medium filter is arranged in a filter shell; water inlet pipelines are symmetrically arranged at two sides of the inner primary filtering cylinder; a filter net is arranged in the inner primary filtering cylinder; the interior of a hollow shaft is divided into two independent cavities; one cavity is communicated with a backwashing buffer short section and a backwashing spray pipe; the other cavity is communicated with a residue-removing buffer short section and a residue absorbing pipe; the backwashing spray pipe and the residue absorbing pipe are in the inner primary filtering cylinder; the backwashing buffer short section and the residue-removing buffer short section sleeve the hollow shaft; a pollutant absorption motor is arranged on the top of the hollow shaft and connected with the hollow shaft so as to drive the hollow shaft; a light filter material layer and a heavy filter material layer are paved in the filter shell from top to bottom; and a ring-current backwashing structure is arranged in the light filter material layer and connected to a back-cleaning main pipe. The multi-effect double-medium filter disclosed by the invention has the advantages that the filtering effect is good; the filter material backwashing effect is good; filter materials are difficult to flow away and crush; and the multi-effect double-medium filter is convenient to maintain, etc.
Description
[technical field]
The present invention relates to a kind of filter, be specifically related to the two medium filter of a kind of multiple-effect, it, for oil-polluted water and slag inclusion sewage disposal, belongs to oil field sewage treating equipment technical field.
[background technology]
At present, the walnut shell filter that offshore production platform adopts/bis-medium filter is comparatively good in the oil-polluted water field effect that process is conventional, and Technical comparing is ripe.But, for part heavy crude oil field, especially have employed the oil field of the poly-well stimulation of chemistry note, the moral character of production waste there occurs larger change, the remaining adhesion of high molecular polymer to filtrate is extremely strong, the silt particles etc. that simultaneously also can carry with crude oil, production fluid forms very stable compound system, causes that filtrate large area is irreversible to harden.Conventional filter normally can use more than 1-2 at conventional oil field filtrate, and gathers oil field only 1 month at note, and even faster, just close to hardening completely, the average replacement cycle is only about 3 months.
Traditional walnut shell filter/bis-medium filter is not to the pre-filter function carrying out liquid, and the poly-component of macromolecule note that upper level equipment is not separated completely, enters filter, directly contact filtrate, cause filtrate under such conditions, overwork.
In production practices, carry out sampling observation by carrying out liquid to note poly-oil field walnut shell filter, it carrys out the oil-containing micelle of thickness residual more in liquid.These micelles have stronger viscoplasticity and chemical inertness, heating up and using conventional demulsifier/water cleaning agent etc. to be all difficult to carry out effective water-oil separating mutually to this thing, are namely difficult to breakdown of emulsion and broken glue.This viscoelastic micelle, in oil-polluted water, long-term delay can also adsorb silt and crude oil further, and micelle quality and scale has the characteristic of further growth.
Simultaneously in filtrate part, traditional backwash mode adopts mechanical agitation or air pressure backwash technique, the filter material layer effect that these two kinds of backwash modes are tied glue connecting plate is all not good, backwash flow field is simple vertical direction, very easily there is local circulation, glue connects critical regions and nearly wall side mobility is poor, uneven to the backwash effect of filter material surface pollutant.
Therefore, for solving the problems of the technologies described above, the necessary multiple-effect pair medium filter providing a kind of advanced person, to overcome described defect of the prior art.
[summary of the invention]
For solving the problem, the object of the present invention is to provide a kind of good filtration effect, filtrate backwash effect is good, and filtrate not easily runs off and fragmentation, and the two medium filter of the multiple-effect maintained easily.
For achieving the above object, the technical scheme that the present invention takes is: the two medium filter of a kind of multiple-effect, and it comprises filter housings, initial filter inner core, quill shaft, backwash jet pipe, dreg inhaling pipe, backwash buffering pipe nipple, slagging-off buffering pipe nipple, soil pick-up motor, light filter material layer, heavy filter material layer, circulation back-flushing structure and instead cleans supervisor; Wherein, described initial filter inner core is arranged in filter housings, and its bilateral symmetry is provided with back with water inlet line; Filter screen is provided with in described initial filter inner core; In described quill shaft, segmentation is two independently cavitys, wherein a cavity is communicated with backwash buffering pipe nipple, backwash jet pipe, another cavity is communicated with slagging-off buffering pipe nipple, dreg inhaling pipe, and backwash jet pipe, dreg inhaling pipe are positioned at initial filter inner core, backwash buffering pipe nipple, slagging-off buffering pipe nipple are set on quill shaft; Described soil pick-up motor is arranged on the top of quill shaft, and it connects and drives quill shaft; Described light filter material layer, heavy filter material layer are laid in filter housings from top to bottom; Described circulation back-flushing structure is arranged in light filter material layer, and it is connected with described anti-cleaning supervisor.
The two medium filter of multiple-effect of the present invention is set to further: in described back with water inlet line, be provided with a water inlet aeration structure.
The two medium filter of multiple-effect of the present invention is set to further: between described filter housings, initial filter inner core, be connected with a differential manometer, this differential manometer is electrically connected and controls soil pick-up motor.
The two medium filter of multiple-effect of the present invention is set to further: described heavy filter material layer is supported on an antiseep screen casing.
The two medium filter of multiple-effect of the present invention is set to further: the bottom of described filter housings is provided with an outlet pipe.
The two medium filter of multiple-effect of the present invention is also set to: described light filter material layer is specially lightweight walnut shell; Described heavy filter material layer is specially heavy quartz sand layer.
Compared with prior art, the present invention has following beneficial effect:
1. the two medium filter of multiple-effect of the present invention achieves the Double-oil removing effect of built-in cyclone deoiling and induced air flotation oil removing to water inlet portion, to always carrying out pretreatment, greatly reduce the operational load of two medium filter material layer, contribute to the treatment effect and the replacement cycle that extend filtrate.
2. the two medium filter of multiple-effect of the present invention add can realize automatic control self-cleaning initial filter in bucket, for the dregs of fat of larger volume, colloid sump oil, can achieve effective control containing polymer oil sludge, chemical agent floc sedimentation etc., avoids it to damage filtrate.
3. in the initial filter of the two medium filter of multiple-effect of the present invention, bucket is divided into two parts, and top rotary fluid lead-in portion is entity structure, and bottom just filter screen is multilayer wedge shape web frame, according to actual product design alternative filtering accuracy, can reach 10 microns.Bottom just filter screen part is detachable, is convenient to maintenance or changes between turn(a)round.
4. the two medium filter of multiple-effect of the present invention is in two medium filtrate backwash process part, enhances the cleaning to light filter material, eliminates mechanical agitation, use waterpower circulation cleaning way instead, while improve backwash effect, greatly reduce the percentage of damage of filtrate.
5. the two medium filter of multiple-effect of the present invention is not only applicable to new equipment construction, also there is wide transformation space to numerous with device.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the two medium filter of multiple-effect of the present invention.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is the schematic diagram of bucket water intake mode in initial filter.
Fig. 4 is light filter material layer backwash water water intake mode schematic diagram.
[detailed description of the invention]
Refer to shown in Figure of description 1 to accompanying drawing 4, the present invention is the two medium filter of a kind of multiple-effect, and it is cushioned several parts such as pipe nipple 6, slagging-off buffering pipe nipple 7, soil pick-up motor 8, light filter material layer 9, heavy filter material layer 10, circulation back-flushing structure 11 and anti-cleaning supervisor 12 formed by filter housings 1, initial filter inner core 2, quill shaft 3, backwash jet pipe 4, dreg inhaling pipe 5, backwash.
Wherein, described initial filter inner core 2 is arranged in filter housings 1, and its bilateral symmetry is provided with back with water inlet line 13.A water inlet aeration structure 14 is provided with in described back with water inlet line 13.Filter screen 15 is provided with in described initial filter inner core 2.
In described quill shaft 3, segmentation is two independently cavitys, wherein a cavity is communicated with backwash buffering pipe nipple 6, backwash jet pipe 4, another cavity is communicated with slagging-off buffering pipe nipple 7, dreg inhaling pipe 5, and backwash jet pipe 4, dreg inhaling pipe 5 are positioned at initial filter inner core 2, backwash buffering pipe nipple 6, slagging-off buffering pipe nipple 7 are set on quill shaft 3.
Described soil pick-up motor 8 is arranged on the top of quill shaft 3, and it connects and drives quill shaft 8.Between described filter housings 1, initial filter inner core 2, be connected with a differential manometer 19, this differential manometer 19 is electrically connected and controls soil pick-up motor 8.
Described light filter material layer 9, heavy filter material layer 10 are laid in filter housings 1 from top to bottom, and described heavy filter material layer 10 is supported on an antiseep screen casing 16.Described light filter material layer 9 is specially lightweight walnut shell; Described heavy filter material layer 10 is specially heavy quartz sand layer.
Described circulation back-flushing structure 11 is arranged in light filter material layer 9, and it is connected with described anti-cleaning supervisor 12.An outlet pipe 17 is provided with in the bottom of described filter housings 1.
The operation principle of the two medium filter of multiple-effect of the present invention is as follows:
Treatment sewage carries out appropriate aeration at water inlet aeration structure 14 place, again through back with water inlet line 13 in a symmetrical manner, tangentially enter into initial filter inner core 2 inner, thus realize the collaborative of Swirling Flow and oil removal by air bubbling two kinds of de-oil mechanism, realize the cyclone air-flotation oil removing of the first order.
In initial filter inner core 2 bottom, sewage after first order water-oil separating carries out second level initial filter process through the filter screen 15 of initial filter inner core 2, grain diameter is greater than the impurity in filter screen 15 gap, residual oil etc. and carries out effective filtering, greatly reduce the filtration load of two medium, and effectively can control colloid, the pollution of sticky matter oil group to two medium, improve two medium service life, extend effective filter cycle.
During slag absorbing operation, after differential manometer 19 pressure drop monitored between initial filter inner core 2 and filter housings 1 reaches predetermined initiation value, soil pick-up motor 8 starts, to the impurity of the inner side of initial filter inner core 2 be adsorbed on by dreg inhaling pipe 5, quill shaft 3, enter into slagging-off buffering pipe nipple 7, then be discharged on the dirty pipeline of receipts through deslagging pipeline.Also at the uniform velocity rise because soil pick-up motor 8 can not only drive dreg inhaling pipe 5 to rotate while soil pick-up at hoop, its track forms parallel helix, by the spacing of reasonable set rotating speed and dreg inhaling pipe 5, realize to initial filter inner core 2 without the comprehensive soil pick-up in dead angle.After each soil pick-up completes, soil pick-up motor 8 reverse operation, returns to the position before cleaning startup, enters armed state by dreg inhaling pipe 5.
During slag absorbing operation, the backwash operation synchronous averaging of initial filter inner core 2, outside rinse water with pressure, through backwash buffering pipe nipple 6, quill shaft 3, enters into backwash jet pipe 4, and band setting-out carries out tangent line high-pressure wash through backwash jet pipe 4 pairs of initial filter inner cores 2.The relative position of each group of adjacent backwash jet pipe 4, dreg inhaling pipe 5 is rationally set, contributes to the impurity of more difficult cleaning to remove in time, thoroughly.
Through the pretreated sewage of two-stage again through the double filtration of light filter material layer 9, heavy filter material layer 10, Residual oil in water and suspension are carried out depth-type filtration, after reaching predetermined process target, enter subordinate's flow process through outlet pipe 17.For keeping the filter activity of light filter material layer 9, heavy filter material layer 10, the fluid pressure differential of monitoring outlet pipe 17 place and filter inside, after pressure drop reaches setting value, need carry out anti-cleaning operation.
During anti-cleaning, outlet valve is closed, anti-rinse water enters bottom filter through anti-cleaning supervisor 12, even backwash is carried out through antiseep screen casing 16 pairs of light filter material layers 9, heavy filter material layer 10, its main flow direction is straight up, and because sectional area is comparatively large herein, the overall flow velocity of vertical direction is less, cleaning strength is lower, and easily occurs uneven cleaning.For this reason, be provided with circulation back-flushing structure 11, by to a part of backwash water through multilayer, multiple spot annular water distribution, the higher annular stream of relative velocity is formed on 9, light filter material layer, improve the backwash effect of light filter material layer 9 filtrate that commute suspends, and improve light filter material layer 9, heavy filter material layer 10 effectively layering efficiency, reduce the leak rate of light filter material layer 9.
Above detailed description of the invention is only the preferred embodiment of this creation, and not in order to limit this creation, any amendment made within all spirit in this creation and principle, equivalent replacement, improvement etc., within the protection domain that all should be included in this creation.
Claims (6)
1. the two medium filter of multiple-effect, is characterized in that: comprise filter housings, initial filter inner core, quill shaft, backwash jet pipe, dreg inhaling pipe, backwash buffering pipe nipple, slagging-off buffering pipe nipple, soil pick-up motor, light filter material layer, heavy filter material layer, circulation back-flushing structure and instead clean supervisor; Wherein, described initial filter inner core is arranged in filter housings, and its bilateral symmetry is provided with back with water inlet line; Filter screen is provided with in described initial filter inner core; In described quill shaft, segmentation is two independently cavitys, wherein a cavity is communicated with backwash buffering pipe nipple, backwash jet pipe, another cavity is communicated with slagging-off buffering pipe nipple, dreg inhaling pipe, and backwash jet pipe, dreg inhaling pipe are positioned at initial filter inner core, backwash buffering pipe nipple, slagging-off buffering pipe nipple are set on quill shaft; Described soil pick-up motor is arranged on the top of quill shaft, and it connects and drives quill shaft; Described light filter material layer, heavy filter material layer are laid in filter housings from top to bottom; Described circulation back-flushing structure is arranged in light filter material layer, and it is connected with described anti-cleaning supervisor.
2. the two medium filter of multiple-effect as claimed in claim 1, is characterized in that: in described back with water inlet line, be provided with a water inlet aeration structure.
3. the two medium filter of multiple-effect as claimed in claim 1, it is characterized in that: between described filter housings, initial filter inner core, be connected with a differential manometer, this differential manometer is electrically connected and controls soil pick-up motor.
4. the two medium filter of multiple-effect as claimed in claim 1, is characterized in that: described heavy filter material layer is supported on an antiseep screen casing.
5. the two medium filter of multiple-effect as claimed in claim 1, is characterized in that: the bottom of described filter housings is provided with an outlet pipe.
6. the two medium filter of multiple-effect as claimed in claim 1, is characterized in that: described light filter material layer is specially lightweight walnut shell; Described heavy filter material layer is specially heavy quartz sand layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782123.5A CN104556446A (en) | 2014-12-12 | 2014-12-12 | Multi-effect double-medium filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410782123.5A CN104556446A (en) | 2014-12-12 | 2014-12-12 | Multi-effect double-medium filter |
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| Publication Number | Publication Date |
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| CN104556446A true CN104556446A (en) | 2015-04-29 |
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| CN201410782123.5A Pending CN104556446A (en) | 2014-12-12 | 2014-12-12 | Multi-effect double-medium filter |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478017A (en) * | 2015-11-25 | 2016-04-13 | 西南石油大学 | Method for preparing filter membrane through water clarifier doping |
| CN106237685A (en) * | 2016-09-21 | 2016-12-21 | 东莞市联洲知识产权运营管理有限公司 | A kind of sewage disposal device |
| CN106669245A (en) * | 2017-01-17 | 2017-05-17 | 成都聚智工业设计有限公司 | Novel electromechanical oil filtering device |
| CN108479132A (en) * | 2018-04-03 | 2018-09-04 | 中国石油天然气股份有限公司 | Hardened filter and method are broken in multilayer static cutting |
| WO2018124981A3 (en) * | 2016-12-28 | 2018-10-25 | Khanyot Munthana | Clear water storage tank with built-in filter |
| CN111013246A (en) * | 2019-12-20 | 2020-04-17 | 中国石油化工股份有限公司 | Anti-pollution energy-saving filtering device and method for oilfield produced water |
| CN111013247A (en) * | 2019-12-20 | 2020-04-17 | 中国石油化工股份有限公司 | Pipeline type combined automatic sewage filtering device and method |
| CN113262533A (en) * | 2020-02-14 | 2021-08-17 | 杉杉能源（宁夏）有限公司 | Unpowered concentrator and ternary precursor production device |
| CN115159705A (en) * | 2022-07-28 | 2022-10-11 | 珠海市清创智慧海绵技术研究院有限公司 | Double-medium filter capable of adjusting density of filter medium |
-
2014
- 2014-12-12 CN CN201410782123.5A patent/CN104556446A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478017A (en) * | 2015-11-25 | 2016-04-13 | 西南石油大学 | Method for preparing filter membrane through water clarifier doping |
| CN106237685A (en) * | 2016-09-21 | 2016-12-21 | 东莞市联洲知识产权运营管理有限公司 | A kind of sewage disposal device |
| CN106237685B (en) * | 2016-09-21 | 2018-07-31 | 威海美丽乡村环保科技有限公司 | A kind of sewage disposal device |
| WO2018124981A3 (en) * | 2016-12-28 | 2018-10-25 | Khanyot Munthana | Clear water storage tank with built-in filter |
| CN106669245A (en) * | 2017-01-17 | 2017-05-17 | 成都聚智工业设计有限公司 | Novel electromechanical oil filtering device |
| CN108479132A (en) * | 2018-04-03 | 2018-09-04 | 中国石油天然气股份有限公司 | Hardened filter and method are broken in multilayer static cutting |
| CN111013246A (en) * | 2019-12-20 | 2020-04-17 | 中国石油化工股份有限公司 | Anti-pollution energy-saving filtering device and method for oilfield produced water |
| CN111013247A (en) * | 2019-12-20 | 2020-04-17 | 中国石油化工股份有限公司 | Pipeline type combined automatic sewage filtering device and method |
| CN113262533A (en) * | 2020-02-14 | 2021-08-17 | 杉杉能源（宁夏）有限公司 | Unpowered concentrator and ternary precursor production device |
| CN115159705A (en) * | 2022-07-28 | 2022-10-11 | 珠海市清创智慧海绵技术研究院有限公司 | Double-medium filter capable of adjusting density of filter medium |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |