CN203075850U - Concentrated filter device - Google Patents

Concentrated filter device Download PDF

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Publication number
CN203075850U
CN203075850U CN 201320039470 CN201320039470U CN203075850U CN 203075850 U CN203075850 U CN 203075850U CN 201320039470 CN201320039470 CN 201320039470 CN 201320039470 U CN201320039470 U CN 201320039470U CN 203075850 U CN203075850 U CN 203075850U
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CN
China
Prior art keywords
water tank
liquid level
level point
strainer
water
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.)
Withdrawn - After Issue
Application number
CN 201320039470
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Chinese (zh)
Inventor
郭大磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KUNSHAN HUAKE MEMBRANE AND ENVIRONMENTAL TECHNOLOGY Co Ltd
Original Assignee
KUNSHAN HUAKE MEMBRANE AND ENVIRONMENTAL TECHNOLOGY Co Ltd
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Priority to CN 201320039470 priority Critical patent/CN203075850U/en
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Publication of CN203075850U publication Critical patent/CN203075850U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a concentrated filter device which comprises a filter water tank, a filter component, a water production tank, a water intake pump and a backflushing device, wherein the filter component is arranged in the filter water tank; the backflushing device is used for backflushing the filter component; the filter component comprises a plurality of cylindrical filter elements which are arranged erectly and are parallel mutually; a component for filtering in the filter elements is a filter membrane; the plurality of filter elements are communicated with a water production tank through a water production pipeline so as to form a water production channel; the water production channel is provided with a control valve; and particularly, the backflushing device comprises a gas generating device for providing gas for the filter component so as to perform gas purging on the filter elements. According to the utility model, a gas purging backflushing mode is adopted, the water production rate can be improved, and the operation cost is lowered; and meanwhile, the device is simple, low in cost, and convenient to operate.

Description

The thickening filtration device
Technical field
The utility model relates to a kind of thickening filtration device.
Background technology
Along with industrial progress and social development, water pollutes and is on the rise, and a No.1 environmental improvement difficult problem has now become international.There are problems such as complicated operation, operating cost height, poor processing effect in existing sewage disposal system, and the apparatus and process complexity.
The thickening filtration device of prior art is the applicant's the disclosed thickening filtration device of Chinese patent ZL201210215158.1 for example, all utilizes water to carry out backwash.Yet, because existing market fiber film component, no matter be tubular type, rolling or doughnut membrane type, its filter membrane material is all as " sponge ", reach under 0.2Mpa or the condition of negative-pressure operation pressure at positive pressure operation pressure greater than 0.05Mpa, the big molecule of the colloid in the waste water, about 1/3 part of the monomer of materials such as microorganism and suspension can enter in membrane material " sponge " the body opening crack, cause the irreversible pollution of membrane material thus, the porosity of membrane material is reduced.Adopt water-washing method to carry out backwash, limited for the recovery of membrane flux.Particularly in actual applications, in order to increase filtration flux, its positive pressure operation pressure generally is greater than 0.2Mpa, and negative-pressure operation pressure is also greater than 0.05Mpa; Under high pressure, the pollution of membrane material is irreversible more serious, and any chemical agent also can't come out the tamper full scale clearance.Existing washing backwash mode, because the film cleaning is not thorough, membrane flux can be more and more littler along with using, and on the one hand, limited producing water ratio; On the other hand, the operation cost of device is higher.
The irreversible pollution that membrane material forms because of the obstruction of colloid, microorganism becomes the world-famous puzzle in the industry already.Backwash mode to the thickening filtration device improves to improve its producing water ratio and to cut operating costs significant.
Summary of the invention
Technical problem to be solved in the utility model is that the backwash mode to existing thickening filtration device improves, to improve producing water ratio and backwash effect and to cut operating costs.
For solving above technical problem, the utility model is taked following technical scheme:
A kind of thickening filtration device, it comprises water tank with strainer, be arranged on the filter element in the water tank with strainer, produce water tank, be used in water tank with strainer, pumping into the intake pump of water to be filtered, be used for filter element is carried out the back purge system of backwash, filter element comprises upright setting and a plurality of tubular filter cores that are parallel to each other, the parts that are used for filtration in the filter core are filter membrane, described a plurality of filter core is communicated with the product water tank by the water producing pipe road, constitutes and produces water passage, and be provided with control valve on the product water passage, particularly, described back purge system comprises and is used for providing gas filter core is implemented the gas generating unit of air purge to described filter element.
According to a preferred aspect of the present utility model, described gas generating unit comprises air compressor machine, is used to be communicated with the air purge air inlet pipe of air compressor machine and described control valve, be arranged on the pneumatic operated valve on the described air purge air inlet pipe, described back purge system also comprises top that is arranged on water tank with strainer and the blast pipe that is communicated with the top of described a plurality of filter cores, and is arranged on the exhaust pneumatic operated valve on the described blast pipe.Further, also can establish an air accumulator, the gases at high pressure that air compressor machine is produced import in the air accumulator earlier, again gas are delivered to control valve from air accumulator by the air purge air inlet pipe, finally enter into filter core.
Preferably, described air compressor machine can provide the pressure-air of pressure size between 0.25MPa ~ 0.40MPa.
According to another preferred aspect of the present utility model, described control valve is a changeover valve, specifically by valve body part be positioned at the valve body part and can be driven and identical combination of spool part closed of rotating constitutes, sidepiece in the valve body part, the outside of spool part is respectively equipped with a plurality of holes, a plurality of holes on the valve body part are corresponding one by one with a plurality of holes of spool part, wherein a plurality of holes on the valve body part connect one to one by water producing pipe road and a plurality of filter core, in a plurality of the holes of valve body part one of them with the air purge air inlet pipe is communicated with formation backwash path, all the other holes with produce water tank and be communicated with and constitute the product water passage, filter also comprises the driving mechanism that the spool that is used to drive changeover valve partly rotates.Control valve structure more specifically can be referring to Chinese utility model patent ZL201210215158.1.
Further, described control valve can be positioned at water tank with strainer above or below, when control valve is positioned at water tank with strainer when top, the product water mode of filter core is a hydrocone type, when control valve was positioned at the water tank with strainer below, the product water mode of described filter core was the seepage formula.These two kinds product water modes are compared with traditional filter core, and need not electromechanical power and drive, operating pressure≤0.02Mpa, the colloidal substance in the waste water, microorganism and suspension just are adsorbed on the surface of membrane material, are easy to come off.More specifically, when control valve is positioned at the water tank with strainer top, an end in water producing pipe road is connected internally on the mounting seat of filter core bottom from water tank with strainer, the other end links to each other with control valve; When control valve was positioned at the water tank with strainer below, the water producing pipe road linked to each other with control valve by the seal valve of water tank bottom.
According to a preferred aspect of the present utility model, described filter core has three at least.The number of described filter core can be not particularly limited for for example 8 ~ 60, and the filter core number is The more the better in theory, but it is fixed to need to consider that actual demand comes.
Preferably, described product water tank is positioned at the water tank with strainer below.
Further, the top of water tank with strainer is provided with first liquid level point and second liquid level point, is provided with switch respectively at each liquid level point place, wherein, when the switch of last liquid level point is used for that liquid level rises to liquid level point in the course of the work the water tank with strainer, make intake pump stop into water; In the switch of liquid level point when being used for that liquid level drops to liquid level point in the course of the work the water tank with strainer, make intake pump begin to intake.
Further, the bottom of water tank with strainer is provided with the 3rd liquid level point, also is provided with switch at the 3rd liquid level point place, when this switch is used for that liquid level drops to the 3rd liquid level point in the water tank with strainer of maintenance program, intake pump is started working.
According to a concrete aspect, the top of water tank with strainer is connected with the water tank with strainer overflow pipe, and when liquid level in the water tank with strainer surpassed overfall height point, water was discharged by the water tank with strainer overflow pipe.
Further, the thickening filtration device also comprises being connected to produce and is used for the outlet pipe that water is discharged on the water tank and goes out water pump.
Preferably, on the water producing pipe road between control valve and the product water tank, also be provided with pneumatic operated valve, produce the top of water tank, middle part and bottom are respectively equipped with liquid level point, middle liquid level point and following liquid level point, be provided with switch respectively at each liquid level point place, be connected with the product water tank overflow pipe at the product water tank upper, drop between the last liquid level point of product water tank and second liquid level point of water tank with strainer is more than or equal to 1 meter, wherein: when going up the liquid level point switch and being used for that liquid level rises to liquid level point in producing water tank, close pneumatic operated valve, in liquid level point switch when being used for that liquid level drops to liquid level point in producing water tank, open pneumatic operated valve; When following liquid level point switch is used for that liquid level drops to liquid level point in producing water tank, close out water pump.
Preferably, the parts that are used for filtration in the described filter core are that the aperture is 0.01 ~ 5.0 micron a filter membrane.More preferably, described filter core has the described structure of Chinese utility model patent ZL201120063461.5.
Preferably, can lay aeration tube, perhaps can also around cabinet wall, do the water spray design at the filter core water tank bottom, so, by the bottom aeration and all around current can make the accumulation of cartridge surface deposit-free towards penetrating, keep high water flux.
Because the enforcement of above technical scheme, the utility model compared with prior art has following advantage:
Device of the present utility model can utilize gases at high pressure that filter membrane is carried out backwash, gases at high pressure enter from the filter core bottom, from bottom to top push the water in the filter core rapidly, produce " tsunami " effect, for example producing thus, the buffer brake of 0.25 ~ 0.4Mpa makes the membrane material instantaneous expansion, cause the attachment on film surface to come off, thereby recover the flux of film, gases at high pressure enter from the bottom up, can fully clean each part of filter core, compare with traditional washing backwash mode, the backwash effect is better, producing water ratio improves, and operation cost reduces.In addition, device of the present utility model is simple more, cost reduces, more convenient operation.
Description of drawings
The utility model is described in more detail below in conjunction with accompanying drawing and specific embodiment:
Fig. 1 is the structural representation of the thickening filtration device of embodiment 1;
Fig. 2 is the structural representation of the thickening filtration device of embodiment 2;
Wherein: 1, water tank with strainer; 10, water tank with strainer overflow pipe; 11, blow-off pipe; 2, filter element; 21, filter core; 210, mounting seat; 20, water producing pipe; 3, produce water tank; 30, produce water tank overflow pipe; 31, filter the product water ga(u)ge; 32, outlet pipe; 33, go out water pump; 34, water flow control valve; 35, water flow meter; 36, blow-off pipe; 4, intake pump; 50, air compressor machine; 51, air accumulator; 52, air purge air inlet pipe; 53, blast pipe; 54, exhaust cap; 55, check valve; 56, air purge pressure-regulating valve; 57, aeration tube; 58, aeration air inlet pipe; 6, control valve; 60, valve body part; 61, spool part; 7, seal valve; Yh, the first liquid level point switch; Y1, the second liquid level point switch; The switch of Y0, the 3rd liquid level point; Ych, last liquid level point switch; Ycl, intermediate liquid site switch; Yc0, following liquid level point switch; K1, exhaust pneumatic operated valve; K2, K3, K4, pneumatic operated valve.
The specific embodiment
Embodiment 1
As shown in Figure 1, the thickening filtration device according to present embodiment mainly comprises water tank with strainer 1, is arranged on the filter core 21 that the filter element 2(16 in the water tank with strainer be arranged in parallel), produce accessories such as water tank 3, intake pump 4, back purge system and connecting pipe, switch, valve.
Water tank with strainer 1 is positioned at the top position of whole device, and its top is provided with first liquid level point, the first liquid level point switch Yh, second liquid level point and the first liquid level point switch Y1; Its underpart is provided with the 3rd liquid level point and the 3rd liquid level point switch Y0.Be connected with water tank with strainer overflow pipe 10 on the top of water tank with strainer 1, be connected with blow-off pipe 11 in the bottom.16 tubular filter core 21(concrete structures are referring to Chinese utility model patent ZL201120063461.5) uprightly be arranged in the water tank with strainer 1, and the bottom is passed the bottom of water tank with strainer 1 and is connected with control valve 6 by water producing pipe 20.
Back purge system comprises air compressor machine 50, the air accumulator 51 that is communicated with air compressor machine 50, air purge air inlet pipe 52, be arranged on the pneumatic operated valve K2 on the air purge air inlet pipe 52, be arranged on the top of water tank with strainer 1 and the blast pipe 53 that is communicated with the top of described a plurality of filter cores 21, the muffler 57 that is arranged on the exhaust pneumatic operated valve K1 on the described blast pipe 53 and the exhaust end of blast pipe 53 is communicated with air accumulator 51, further, establish exhaust cap 54 on filter core 21 tops, between exhaust cap 54 and blast pipe 53, be provided with check valve 55, on air purge air inlet pipe 52, be provided with air purge pressure-regulating valve 56.Pressure-air is adopted in the backwash of filter core 21, and air pressure preferably is greater than 0.25Mpa, and in little 0.40Mpa.
In this example, control valve 6 is positioned at the below of water tank with strainer 1, and water producing pipe 20 links to each other with control valve 6 by the seal valve 7 of water tank with strainer 1 bottom.At this moment, the product water mode of filter core 21 is the seepage formula, need not electromechanical power and drive, and operating pressure≤0.02Mpa, the colloidal substance in the waste water, microorganism and suspension just are adsorbed on the surface of membrane material, are easy to come off.Control valve 6 is specifically coincide to combine with spool part 61 closeds by valve body part 60 and constitutes, and wherein valve body part 60 has the hole, position of 16 protrusions, and they connect one to one by 16 water producing pipes 20 and 16 filter cores 21.15 shared passages in the hole, 16 positions of valve body part 60, and by outlet and water producing pipe 20 with produce water tank 3 and link to each other, constitute and produce water passage, the hole, 1 position of residue of valve body part 60 links to each other with air purge air inlet pipe 52, formation backwash path.The structure of described control valve 6 is with the changeover valve of Chinese utility model patent ZL201210215158.1, and concrete structure can be referring to this patent documentation.Identical with ZL201210215158.1, in this example, in a work period, arbitrary time period, 15 filter cores 21 are to produce the water process, and 1 filter core 21 is backwash processes.Different is, in this example, backwash is the air purge mode, and during backwash, control valve 6 can be distributed to pressure-air the wherein filter core 21 in all filter cores 21 in order, and it is unaffected that all the other filter cores 21 produce water.
The upper, middle and lower of producing water tank 3 is respectively equipped with liquid level point, middle liquid level point and following liquid level point, and correspondence is provided with liquid level point switch Ych, middle liquid level point switch Ycl and following liquid level point switch Yc0.Drop between the last liquid level point of producing water tank 3 and second liquid level point of water tank with strainer 1 is greater than 1 meter, and promptly pressure reduction is more than or equal to 0.01MPa, thereby can utilize the drop generation pressure differential of water to drive the purpose that filter membrane that water body permeates filter core reaches purification filtering.On the water producing pipe 20 that produces between water tank 3 and the control valve 6, be provided with pneumatic operated valve K4 and filter product water ga(u)ge 31.Be connected with on the top of producing water tank 3 and produce water tank overflow pipe 30, the following side is connected with outlet pipe 32, goes out water pump 33, water flow control valve 34, water flow meter 35, and the bottom is connected with blow-off pipe 36.
In addition, also lay aeration tube 57 in filter core water tank 1 bottom, aeration tube 57 is communicated with air accumulator 51 by aeration air inlet pipe 58, by air accumulator 51 air feed.By the bottom aeration and all around current dash and to penetrate, can make the accumulation of cartridge surface deposit-free, keep high water flux.
Product water/air purge the process of above-mentioned thickening filtration device is as follows:
Intake pump 4 is opened, and pneumatic operated valve K3 opens, and closes pneumatic operated valve K2, is intake in filter core water tank 1 by intake pump 4, when liquid level rises to first liquid level point, stops into water; Begin to produce water, simultaneously, during to filter core 21 air purges, after control valve 6 rotation, pneumatic operated valve K2 opens, and exhaust pneumatic operated valve K1 closes, and carries out pressure-air to filter core 21 backwashes, and air is extruded the water in filter core 21 inner passages and finished backwash; After single filter core 21 air backwashes were finished, exhaust pneumatic operated valve K1 opened, and pneumatic operated valve K2 closes, and by exhaust cap 53, check valve 54 and blast pipe 52 air in the filter core 21 was discharged; When the liquid level in the water tank with strainer 1 dropped to second liquid level point, intake pump 4 began water inlet again.
Produce water inlet in the water tank 3, reach liquid level point when producing water tank 3 liquid levels, pneumatic operated valve K4 closes, and when liquid level reaches when producing in the water tank 3 liquid level point, pneumatic operated valve K4 opens, and goes out water pump 33 unlatchings; When liquid level reaches when producing under the water tank liquid level point, go out water pump 33 and close.
Device stops to produce water after operation a period of time, the filter core in the water tank with strainer 1 21 is carried out short-term safeguard air purge.During air purge, intake pump 4 stops into water, and water tank with strainer 1 does not produce water and only carries out backwash, and backwash 5-10 minute, maintenance program finished, and intake pump 4 is started working.
To sum up, the thickening filtration device that the utility model provides also has following advantage except the whole advantages with the disclosed thickening filtration device of ZL201210215158.1:
1, the product water of filter core produces water for the seepage formula, compares with traditional ultrafiltration, and need not electromechanical power and drive, operating pressure≤0.02Mpa, the colloidal substance in the waste water, microorganism and suspension just are adsorbed on the surface of membrane material, are easy to come off;
2, the high pressure draught backwash enters from the filter core bottom, from bottom to top pushes the water in the filter core rapidly, produces " tsunami " effect, produces 0.25 ~ 0.4Mpa buffer brake thus and makes the membrane material instantaneous expansion, causes the attachment on film surface to come off, thereby recovers the flux of film.High pressure draught enters from the bottom up, can fully clean each part of filter core, and the backwash effect is better, and producing water ratio improves, and operation cost reduces;
3, device is simple more, cost reduces, more convenient operation.
Embodiment 2
As shown in Figure 2, the thickening filtration device that present embodiment provided is substantially with embodiment 1, and different is, its control valve 6 is positioned at the top of water tank with strainer 1, and water producing pipe 20 is connected internally to the mounting seat 210 and control valve 6 at 21 ends of filter core from water tank with strainer 1.The product water mode of filter core 21 is a hydrocone type.Take this product water mode, need not electromechanical power equally and drive, operating pressure≤0.02Mpa, the colloidal substance in the waste water, microorganism and suspension just are adsorbed on the surface of membrane material, are easy to come off.
More than the utility model has been done detailed description; its purpose is to allow the personage that is familiar with this art can understand content of the present utility model and is implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to spiritual essence of the present utility model change or modify, and all should be encompassed in the protection domain of the present utility model

Claims (12)

1. thickening filtration device, comprise water tank with strainer, be arranged on the filter element in the described water tank with strainer, produce water tank, be used in described water tank with strainer, pumping into the intake pump of water to be filtered, be used for filter element is carried out the back purge system of backwash, described filter element comprises upright setting and a plurality of tubular filter cores that are parallel to each other, the parts that are used for filtration in the described filter core are filter membrane, described a plurality of filter core is communicated with described product water tank by the water producing pipe road, constitute and produce water passage, and be provided with control valve on described product water passage, it is characterized in that: described back purge system comprises and is used for providing gas described filter core is implemented the gas generating unit of air purge to described filter element.
2. thickening filtration device according to claim 1, it is characterized in that: described gas generating unit comprises air compressor machine, is used to be communicated with the air purge air inlet pipe of described air compressor machine and described control valve, be arranged on the pneumatic operated valve on the described air purge air inlet pipe, described back purge system also comprises top that is arranged on described water tank with strainer and the blast pipe that is communicated with the top of described a plurality of filter cores, and is arranged on the exhaust pneumatic operated valve on the described blast pipe.
3. thickening filtration device according to claim 2 is characterized in that: described air compressor machine can provide the pressure-air of pressure size between 0.25MPa ~ 0.40MPa.
4. thickening filtration device according to claim 1, it is characterized in that: described control valve is a changeover valve, specifically by valve body part be positioned at described valve body part and can be driven and identical combination of spool part closed of rotating constitutes, sidepiece in described valve body part, the outside of spool part is respectively equipped with a plurality of holes, a plurality of holes on the valve body part are corresponding one by one with a plurality of holes of spool part, wherein a plurality of holes on the valve body part connect one to one by water producing pipe road and described a plurality of filter core, in a plurality of the holes of described valve body part one of them is communicated with formation backwash path with described air purge air inlet pipe, all the other holes with produce water tank and be communicated with and constitute the product water passage, described filter also comprises the driving mechanism that the spool that is used to drive described changeover valve partly rotates.
5. according to claim 1 or 4 described thickening filtration devices, it is characterized in that: described control valve be positioned at described water tank with strainer above or below, when described control valve is positioned at described water tank with strainer top, the product water mode of described filter core is a hydrocone type, when described control valve was positioned at described water tank with strainer below, the product water mode of described filter core was the seepage formula.
6. thickening filtration device according to claim 1 is characterized in that: described filter core has 3 at least.
7. thickening filtration device according to claim 1 is characterized in that: described product water tank is positioned at described water tank with strainer below.
8. thickening filtration device according to claim 7, it is characterized in that: the top of described water tank with strainer is provided with first liquid level point and second liquid level point, be provided with switch respectively at each liquid level point place, wherein, when the switch of last liquid level point is used for that liquid level rises to liquid level point in the course of the work the water tank with strainer, make intake pump stop into water; In the switch of liquid level point when being used for that liquid level drops to liquid level point in the course of the work the water tank with strainer, make intake pump begin to intake.
9. thickening filtration device according to claim 8, it is characterized in that: the bottom of described water tank with strainer is provided with the 3rd liquid level point, also be provided with switch at the 3rd liquid level point place, when this switch is used for that liquid level drops to the 3rd liquid level point in the water tank with strainer of maintenance program, intake pump is started working.
10. thickening filtration device according to claim 8 is characterized in that: the top of described water tank with strainer is connected with the water tank with strainer overflow pipe.
11. thickening filtration device according to claim 8 is characterized in that: described thickening filtration device also comprises being connected and is used for the outlet pipe that water is discharged on the described product water tank and goes out water pump.
12. thickening filtration device according to claim 11, it is characterized in that: on the water producing pipe road between described control valve and the described product water tank, also be provided with pneumatic operated valve, the top of described product water tank, middle part and bottom are respectively equipped with liquid level point, middle liquid level point and following liquid level point, be provided with switch respectively at each liquid level point place, be connected with the product water tank overflow pipe at the product water tank upper, drop between the last liquid level point of product water tank and second liquid level point of water tank with strainer is more than or equal to 1 meter, wherein: when going up the liquid level point switch and being used for that liquid level rises to liquid level point in producing water tank, close pneumatic operated valve, in liquid level point switch when being used for that liquid level drops to liquid level point in producing water tank, open pneumatic operated valve; When following liquid level point switch is used for that liquid level drops to liquid level point in producing water tank, close out water pump.
CN 201320039470 2013-01-24 2013-01-24 Concentrated filter device Withdrawn - After Issue CN203075850U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103055573A (en) * 2013-01-24 2013-04-24 昆山华科膜环保科技有限公司 Concentrated filtering device and cleaning method of filter elements
CN104355427A (en) * 2014-10-29 2015-02-18 郭旦威 Portable raw water dispenser
CN105944570A (en) * 2016-06-27 2016-09-21 河南城建学院 Minitype integrated water purifying device
CN106630233A (en) * 2017-01-18 2017-05-10 成都冠禹科技有限公司 Disassembly-free easy-to-clean water treatment appliance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103055573A (en) * 2013-01-24 2013-04-24 昆山华科膜环保科技有限公司 Concentrated filtering device and cleaning method of filter elements
CN104355427A (en) * 2014-10-29 2015-02-18 郭旦威 Portable raw water dispenser
CN105944570A (en) * 2016-06-27 2016-09-21 河南城建学院 Minitype integrated water purifying device
CN106630233A (en) * 2017-01-18 2017-05-10 成都冠禹科技有限公司 Disassembly-free easy-to-clean water treatment appliance

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