CN102068837B - Method for flushing fiber ball filtering tank - Google Patents
Method for flushing fiber ball filtering tank Download PDFInfo
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- CN102068837B CN102068837B CN201010581079A CN201010581079A CN102068837B CN 102068837 B CN102068837 B CN 102068837B CN 201010581079 A CN201010581079 A CN 201010581079A CN 201010581079 A CN201010581079 A CN 201010581079A CN 102068837 B CN102068837 B CN 102068837B
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Abstract
The invention discloses a method for flushing a fiber ball filtering tank. The method comprises the following steps: (1) when the pressure difference between a filtering water inlet and a filtering water outlet reaches a set value, closing an electric valve at the filtering water inlet and an electric valve at the filtering water outlet, and starting a stirring motor to stir the fiber ball filtering materials in the filtering tank; (2) filling a counter-weight float bowl of a compaction device with water so that the compaction device can drop by virtue of own gravity to compact the filtering materials, and meanwhile, starting an electric valve on a drainage pipeline and a submersible sewage pump to discharge the sewage in the filtering tank, and as the sewage is continuously discharged, the compaction device continuously drops to the set position; and (3) entering into the steam cleaning process after the discharge is finished: closing the submersible sewage pump and the electric valve on the drainage pipeline, and starting an electric valve at an air inlet and an electric valve on an exhaust pipeline, so that the hot steam enters into the filtering tank at a predetermined speed and under predetermined pressure and passes through a filtering material layer at a high speed. The method has the following advantages: by adopting the method, the sewage interception, oil removal and adsorption capabilities of the adsorptive type fiber ball filtering materials are greatly improved; the back-flushing speed is high; and the service lives of the fiber balls are long.
Description
Technical field
The present invention relates to a kind of purging method, relate in particular to a kind of purging method of fibre-ball filtration jar.
Background technology
Oil field extracted water is mainly used in oil-field flooding, keeps strata pressure, guarantees the long-term important measures of giving stable high yields irrespective of drought or water logging in oil field.Because country is to injection water quality, environmental protection requirement increasingly stringent, the processing water yield of oil field extracted water increases fast, processing requirements further improves.But on the filtration link of recovered water; Original oil-containing sewage treatment technique; All be difficult to reach requirement like manganese sand, quartz sand and walnut shell filter technology, aspects such as it mainly shows, and the backwash number of times increases, backwash is not thorough, the shortening of filtrate pollution cycle, the water outlet oil content is high, suspension exceeds standard, effluent quality is not up to standard.Existing fibre-ball filtration jar technology also exists backwash thoroughly big with the backwash water yield, and the backwash number of times increases, and presses backwash not thorough certainly, and the filtrate pollution cycle such as shortens greatly at shortcoming, has seriously restricted the application of fibre-ball filtration technology aspect the oil-field brine processing.
The patent No. is that the Chinese patent of CN200810057176.5 discloses " a kind of continuous fibrous globule filter and filter method thereof ", and fibrous nodules returns to filter after outside filter, being cleaned in the method.But problems such as energy consumption is high, fault rate is high, control difficulty that this cleaning method exists.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, provide a kind of absorbent-type fiber-ball filter media retaining power to improve greatly, the purging method of a kind of fibre-ball filtration jar that backwash speed is fast, water consumption is few, the fiber-ball filter media life-span is long.
In order to achieve the above object, the technical scheme of the present invention's employing is:
A kind of purging method of fibre-ball filtration jar, it may further comprise the steps:
(1) when the pressure reduction that filters intake-outlet reaches setting value; Will be with filtered water inlet mouth motor-driven valve on filtering the back with water inlet line that the tank body diapire is connected, close with the mouth of a river motor-driven valve that filters out on the water outlet pipeline that the filtering tank body sidewall is connected; Start stirring motor fiber-ball filter media in the filtering tank is stirred, the pollutant stirring that is bonded on the fibrous nodules is come off;
(2) counterweight with compacting device is full of water with floating drum; So that compacting device can lean on self gravitation to descend and compress filtrate; To open with the proof submersible sand discharging pump that is installed on the compacting device with the second flowing line motor-driven valve on filtering second flowing line that the tank body roof is connected simultaneously, sewage in the filtering tank discharged, because sewage constantly is discharged from; Compacting device is stuck when constantly dropping to desired location, and this is the draining terminal point;
(3) draining enters into the steam clean process after finishing; The steam clean process comprises: close described proof submersible sand discharging pump, the second flowing line motor-driven valve; And open on the admission line that is connected with the filtering tank body sidewall the air inlet motor-driven valve and with filter first flowing line that the tank body diapire is connected on the exhaust line motor-driven valve; Vapours gets in the filtering tank with predetermined speed and pressure, at a high speed through filter material layer, because the existence of vapours; Stick to sump oil on the fiber-ball filter media and will break away from fiber-ball filter media and discharge with high velocity air, sewage remaining in the filter material layer also can be taken out of filter tank with high velocity air.
The invention has the advantages that: adopt this method absorbent-type fiber-ball filter media to cut dirt, oil removing, adsorption capacity and improve greatly, backwash speed is fast, water consumption is few, the time is short, cleaning is thorough, the fibrous nodules long service life; Realize Automatic Control easily, reduce manually-operated labour intensity etc.
Description of drawings
Fig. 1 is the structural front view of device that realizes the purging method of a kind of fibre-ball filtration jar of the present invention;
Fig. 2 is the front view of the compacting device in the device shown in Figure 1;
Fig. 3 is the vertical view of compacting device shown in Figure 2.
The specific embodiment
Describe the present invention below in conjunction with specific embodiment.
The purging method of a kind of fibre-ball filtration jar of the present invention; It may further comprise the steps: when (1) reaches setting value when the pressure reduction that filters intake-outlet; Will be with filtered water inlet mouth motor-driven valve 4 on filtering the back with water inlet line that the tank body diapire is connected, close with the mouth of a river motor-driven valve 3 that filters out on the water outlet pipeline that the filtering tank body sidewall is connected; Start the interior fiber-ball filter media of 18 pairs of filtering tanks of stirring motor and stir, the pollutant stirring that is bonded on the fibrous nodules is come off; (2) counterweight with compacting device is full of water with floating drum; So that compacting device can lean on self gravitation to descend and compress filtrate; To open with the proof submersible sand discharging pump 17 that is installed on the compacting device with the second flowing line motor-driven valve 1 on filtering second flowing line 19 that the tank body roof is connected simultaneously, sewage in the filtering tank discharged, because sewage constantly is discharged from; Compacting device is stuck when constantly dropping to desired location, and this is the draining terminal point; Sewage is discharged from basically in this moment filtering tank, because proof submersible sand discharging pump is to lean on flexible pipe to be connected with second flowing line, so proof submersible sand discharging pump can descend along with compacting device, to greatest extent with sewage discharge in the jar.(3) draining enters into the steam clean process after finishing; The steam clean process comprises: close described proof submersible sand discharging pump 17, the second flowing line motor-driven valve 1; And open on the admission line 6 that is connected with the filtering tank body sidewall air inlet motor-driven valve 2 and with filter first flowing line 12 that the tank body diapire is connected on exhaust line motor-driven valve 21; Vapours gets in the filtering tank with predetermined speed and pressure, at a high speed through filter material layer, because the existence of vapours; Stick to sump oil on the fiber-ball filter media and will break away from fiber-ball filter media and discharge with high velocity air, sewage remaining in the filter material layer also can be taken out of filter tank with high velocity air.The speed of steam and pressure can be confirmed according to the pressure difference that filters intake-outlet.
The existence of gas water separation tank makes the interior residue of filter tank sewage arrange totallyer sooner.Preferred described steam clean process comprises when beginning into steam in the filtering tank; Open and be arranged on the external water ring vacuum pump of filtering tank, the import of water ring vacuum pump is connected with the gas outlet of gas water separation tank, and the water inlet of gas water separation tank is connected with first flowing line; Water ring vacuum pump suction gas water separation tank upper gas; Make and form micro-vacuum state in the gas water separation tank, residue sewage in the filtering tank and steam will be because pressure differential will constantly drain into gas water separation tank; Liquid level keeps then steam clean stage terminal point of balance in gas water separation tank; At last sewage in the gas water separation tank is drained into the sewage jar, whole flushing process promptly finishes, and gets into next filter cycle.
Like the device of the purging method of realization shown in the drawings a kind of fibre-ball filtration jar of the present invention, it comprises filters tank body 9, and the water distributing plate 10 that has a plurality of holes on it is equipped with in the bottom in described filtration tank body 9.Filtration tank body above the described water distributing plate is provided with hold down gag 5.In use, fiberfill fibers ball filtering material layer between described water distributing plate and hold down gag.Described hold down gag comprises its excircle sidewall and filters the structural steel 5-4 that tank body 9 inwalls are fitted and are provided with; On described structural steel 5-4, have a plurality of holes; On described structural steel 5-4, be equipped with wire netting 5-3; Between described wire netting 5-3 excircle sidewall and inner tank wall, be plugged with peripheral hairbrush 5-5, the diapire of described peripheral hairbrush 5-5 is arranged on the roof of structural steel, and described wire netting 5-3 is provided with the floating drum 5-2 that has water inlet and delivery port on it.On described wire netting, be fixed with immersible pump 17; Described immersible pump 17 with its on second flowing line 19 of the second flowing line motor-driven valve 1 is housed an end link to each other; To be arranged on filtering tank external filtering outlet on the tank body through opening for the other end of described second flowing line; Have spiracle at described filtration tank body top; Described spiracle with its on breather valve 20 is housed the breathing pipeline be connected; Be respectively arranged with upper limit snap ring, lower limit snap ring in described filtration tank body upper inside wall and bottom; Described upper limit snap ring can with wire netting end face compression fit mutually, described lower limit snap ring can with structural steel bottom surface compression fit mutually, on the sidewall of the filtration tank body that is positioned at upper limit snap ring top, have the air water mouth; Described air water mouth through first connecting line respectively with its on air inlet motor-driven valve 2 is housed admission line 6 with its on the water outlet pipeline 7 that filters out mouth of a river motor-driven valve 3 be housed be connected; On described filtering tank body sidewall, have manhole 8, on the diapire of described filtration tank body, have into discharge outlet, described advance discharge outlet through second connecting line respectively with its on filtered water inlet mouth motor-driven valve 4 is housed back with water inlet line 11 with its on exhaust line motor-driven valve 21 is housed first flowing line 12 be connected.At described filtration tank body top stirring motor 18 is installed; The output shaft of described stirring motor links to each other with an end that is arranged on the shaft 5-1 in the middle of filtering in the tank body; The other end of described shaft passes described wire netting and structural steel and is arranged between described structural steel and the water distributing plate, on the other end of shaft, is connected with agitator arm.
The preferred described port of export that first flowing line of exhaust line motor-driven valve is housed on it is connected with the water inlet of a gas water separation tank 13; Open in the gas outlet of gas water separation tank roof and link to each other with the import of water ring vacuum pump 16 through admission line 14, the outlet of described water ring vacuum pump is connected with exhaust line 15.
Described floating drum can and be annular with structural steel with the axis of symmetry for water pipe and be arranged on the wire netting.
The operation principle of this device is following:
During filtration, water gets into through back with water inlet line 11 filtered water inlet mouth at the bottom of the jar, and a fiber-ball filter media layer gets into a filtration state in getting into jar through water distributing plate 10.This moment hold down gag the floating drum expelling tube in the counterweight water, the band floating drum hold down gag that originally is used to compress the fiber-ball filter media layer is floated with current, when hold down gag rises to the upper limit snap ring, fix.Filtrate is the same with traditional fibre ball filter tank, rises with current, is forming a filtering layer of dredging close perfect condition down, performance filtration below the hold down gag.Have a plurality of even distributed holes on the structural steel 5-4 of hold down gag, it is in the collect cavity that filter back water gets into the hold down gag top via these holes, will filter in the water drain tank of back through water outlet pipeline 7, gets into the next stage handling process.
After filter material layer has been held back a large amount of pollutants, will inevitably cause and filter the increase of intake-outlet pressure reduction, just need carry out backwash this moment to recover the retaining power of filtrate.
Embodiment 1
(1) when the pressure reduction that filters intake-outlet reaches setting value; Will be with filtered water inlet mouth motor-driven valve 4 on filtering the back with water inlet line that the tank body diapire is connected, close with the mouth of a river motor-driven valve 3 that filters out on the water outlet pipeline that the filtering tank body sidewall is connected; Start the interior fiber-ball filter media of 18 pairs of jars of stirring motor and stir, the pollutant stirring that is bonded on the fibrous nodules is come off; (2) counterweight with compacting device is full of water with floating drum; So that compacting device can lean on self gravitation to descend and compress filtrate; To open with the proof submersible sand discharging pump 17 that is installed on the compacting device with the second flowing line motor-driven valve 1 on filtering second flowing line 19 that the tank body roof is connected simultaneously, sewage in the jar discharged, because sewage constantly is discharged from; Compacting device is stuck when constantly dropping to desired location, and this is the draining terminal point; (3) draining enters into the steam clean process after finishing; The steam clean process comprises: close described proof submersible sand discharging pump 17, the second flowing line motor-driven valve 1; And open on the admission line 6 that is connected with the filtering tank body sidewall air inlet motor-driven valve 2 and with filter first flowing line 12 that the tank body diapire is connected on exhaust line motor-driven valve 21; Vapours gets in the filtering tank with predetermined speed and pressure, at a high speed through filter material layer, because the existence of vapours; Stick to sump oil on the fiber-ball filter media and will break away from fiber-ball filter media and discharge with high velocity air, sewage remaining in the filter material layer also can be taken out of filter tank with high velocity air.
Through detecting: have only a small amount of residue sewage in jar, fibrous nodules returns to milky by the grey black before cleaning.
Embodiment 2
(1) when the pressure reduction that filters intake-outlet reaches setting value; Will be with filtered water inlet mouth motor-driven valve 4 on filtering the back with water inlet line that the tank body diapire is connected, close with the mouth of a river motor-driven valve 3 that filters out on the water outlet pipeline that the filtering tank body sidewall is connected; Start the interior fiber-ball filter media of 18 pairs of jars of stirring motor and stir, the pollutant stirring that is bonded on the fibrous nodules is come off; (2) counterweight with compacting device is full of water with floating drum; So that compacting device can lean on self gravitation to descend and compress filtrate; To open with the proof submersible sand discharging pump 17 that is installed on the compacting device with the second flowing line motor-driven valve 1 on filtering second flowing line 19 that the tank body roof is connected simultaneously, sewage in the jar discharged, because sewage constantly is discharged from; Compacting device is stuck when constantly dropping to desired location, and this is the draining terminal point; (3) draining enters into the steam clean process after finishing; The steam clean process comprises: close described proof submersible sand discharging pump 17, the second flowing line motor-driven valve 1; And open on the admission line 6 that is connected with the filtering tank body sidewall air inlet motor-driven valve 2 and with filter first flowing line 12 that the tank body diapire is connected on exhaust line motor-driven valve 21; Vapours gets in the filtering tank with predetermined speed and pressure, at a high speed through filter material layer, because the existence of vapours; Stick to sump oil on the fiber-ball filter media and will break away from fiber-ball filter media and discharge with high velocity air, sewage remaining in the filter material layer also can be taken out of filter tank with high velocity air.When beginning into steam in the filtering tank, to open and be arranged on the external water ring vacuum pump of filtering tank, the import of water ring vacuum pump is connected with the gas outlet of gas water separation tank; The water inlet of gas water separation tank is connected with first flowing line, and water ring vacuum pump suction gas water separation tank upper gas makes and forms micro-vacuum state in the gas water separation tank; Residue sewage in the filtering tank and steam are because pressure differential; To constantly drain into gas water separation tank, liquid level keeps then steam clean stage terminal point of balance in gas water separation tank, at last sewage in the gas water separation tank is drained into the sewage jar; Whole flushing process promptly finishes, and gets into next filter cycle.
Through detecting: do not have residue sewage in jar basically, fibrous nodules returns to milky by the grey black before cleaning.
Claims (2)
1. the purging method of a fibre-ball filtration jar is characterized in that it may further comprise the steps:
(1) when the pressure reduction that filters intake-outlet reaches setting value; Will be with filtered water inlet mouth motor-driven valve (4) on filtering the back with water inlet line that the tank body diapire is connected, close with the mouth of a river motor-driven valve (3) that filters out on the water outlet pipeline that the filtering tank body sidewall is connected; Start stirring motor (18) fiber-ball filter media in the filtering tank is stirred, the pollutant stirring that is bonded on the fibrous nodules is come off;
(2) counterweight with compacting device is full of water with floating drum; So that compacting device can lean on self gravitation to descend and compress filtrate; To open with the proof submersible sand discharging pump (17) that is installed on the compacting device with the second flowing line motor-driven valve (1) on filtering second flowing line (19) that the tank body roof is connected simultaneously, sewage in the filtering tank discharged, owing to sewage constantly is discharged from; Compacting device is stuck when constantly dropping to desired location, and this is the draining terminal point;
(3) draining enters into the steam clean process after finishing; The steam clean process comprises: close described proof submersible sand discharging pump (17), the second flowing line motor-driven valve (1); And open on the admission line (6) that is connected with the filtering tank body sidewall air inlet motor-driven valve (2) and with filter first flowing line (12) that the tank body diapire is connected on exhaust line motor-driven valve (21); Vapours gets in the filtering tank with predetermined speed and pressure, at a high speed through filter material layer, because the existence of vapours; Stick to sump oil on the fiber-ball filter media and will break away from fiber-ball filter media and discharge with high velocity air, sewage remaining in the filter material layer also can be taken out of filter tank with high velocity air.
2. the purging method of fibre-ball filtration jar according to claim 1 is characterized in that: described steam clean process comprises when beginning into steam in the filtering tank, opens and be arranged on the external water ring vacuum pump of filtering tank; The import of water ring vacuum pump is connected with the gas outlet of gas water separation tank; The water inlet of gas water separation tank is connected with first flowing line, and water ring vacuum pump suction gas water separation tank upper gas makes and forms micro-vacuum state in the gas water separation tank; Residue sewage in the filtering tank and steam are because pressure differential; To constantly drain into gas water separation tank, liquid level keeps then steam clean stage terminal point of balance in gas water separation tank, at last sewage in the gas water separation tank is drained into the sewage jar; Whole flushing process promptly finishes, and gets into next filter cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010581079A CN102068837B (en) | 2010-12-09 | 2010-12-09 | Method for flushing fiber ball filtering tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010581079A CN102068837B (en) | 2010-12-09 | 2010-12-09 | Method for flushing fiber ball filtering tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102068837A CN102068837A (en) | 2011-05-25 |
| CN102068837B true CN102068837B (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010581079A Expired - Fee Related CN102068837B (en) | 2010-12-09 | 2010-12-09 | Method for flushing fiber ball filtering tank |
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| CN (1) | CN102068837B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030397A (en) * | 2013-03-06 | 2014-09-10 | 广东中科蓝海节能环保科技有限公司 | Oily sewage treatment equipment |
| CN109179526A (en) * | 2018-09-25 | 2019-01-11 | 崔道坦 | Vacuum collection device in marine domestic sewage processing system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4619769A (en) * | 1984-12-28 | 1986-10-28 | Union Oil Co. Of California | Process for regenerating media filters used to filter geothermal brine |
| CN2389698Y (en) * | 1999-09-22 | 2000-08-02 | 刘宏烈 | Fibre ball filter |
| CN201436048U (en) * | 2008-12-17 | 2010-04-07 | 橼凯科技股份有限公司 | Reproducible and backwashing filter material structure improvement |
-
2010
- 2010-12-09 CN CN201010581079A patent/CN102068837B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4619769A (en) * | 1984-12-28 | 1986-10-28 | Union Oil Co. Of California | Process for regenerating media filters used to filter geothermal brine |
| CN2389698Y (en) * | 1999-09-22 | 2000-08-02 | 刘宏烈 | Fibre ball filter |
| CN201436048U (en) * | 2008-12-17 | 2010-04-07 | 橼凯科技股份有限公司 | Reproducible and backwashing filter material structure improvement |
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| Publication number | Publication date |
|---|---|
| CN102068837A (en) | 2011-05-25 |
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Granted publication date: 20121010 Termination date: 20131209 |