CN102974162B - Filter - Google Patents
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- CN102974162B CN102974162B CN201210566398.6A CN201210566398A CN102974162B CN 102974162 B CN102974162 B CN 102974162B CN 201210566398 A CN201210566398 A CN 201210566398A CN 102974162 B CN102974162 B CN 102974162B
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Abstract
The invention discloses a filter, comprising a shell and at least two groups of filtering cores, wherein each group of the filtering core comprises at least one filtering core; each filtering core penetrates through the shell; an upper end opening and a lower end opening of each filtering core are respectively located at the outer side of the shell; the upper end opening is communicated with a switching valve and the lower end opening is communicated with a blow-down valve; and a water outlet of the shell is located at the upper side of the shell. When the filter works, the switching valve and the blow-down valve of each group of the filtering cores are alternatively opened; the switching valves of the two groups of the filtering cores are alternatively opened; the two groups of the filtering cores are of a filtering region and a dirt discharging region, respectively; a water purifying region is arranged inside the shell; a water outlet of the water purifying region is arranged at the upper side of the shell; when the filtering cores are backwashed, the water level of the water purifying region is higher and the whole filtering parts of the filtering cores in the shell can be backwashed; and the effect is better. Each filtering core penetrates through a top plate and a bottom plate of the shell; and the filtering parts of the filtering cores in the shell do not have inner leakage points so that the filtering effect can be guaranteed. The upper end openings and the lower end openings of each group of the filtering cores are controlled by valves so as to prevent pressure from being leaked and realize the backwashing of the filtering cores.
Description
Technical field
The present invention relates to technical field of sewage, particularly relate to a kind of filter.
Background technology
Filter for sewage disposal comprises disc filter, medium (quartz sand) filter, suctorial type filter, brush type filter, back flush type filter etc.
The filtering accuracy of various filter and the concentration of suspension of pending water are determined by factors such as its work principle of filter, self-cleaning mode and body constructions.The filtering accuracy of filter is usually more than 100 microns, and concentration of suspension requires at below 200mg/l, otherwise just may filter core blocking.
Some trade effluent, the buck of such as wet electrical dust precipitator, its concentration of suspension is at about 1000mg/l, suspension particle 30% is below 2.5 microns, 90% below 10 microns, then common filter is all because the concentration of suspension of wet electrical dust precipitator buck is high and little being difficult to of granularity meets filtering requirement.
At present, what most possibly meet the filtering requirement of wet electrical dust precipitator buck is two filter cylinder backwash automatic filters, please refer to Fig. 1 and Fig. 2, Fig. 1 is a kind of structural representation of typical back flush type filter, and Fig. 2 is the structural representation after the back flush type filter improvement shown in Fig. 1.
Filter shown in figure is two filter cylinder back flush type filters, and filter comprises housing 1', two filter core 2', backwash mechanism and blowoff valve 3'.Its inner chamber is divided into chamber, upper, middle and lower three by the dividing plate 4' in housing 1', and dividing plate 4' is provided with baffle plate, and epicoele is the entrance cavity of pending water, and pending water enters from epicoele; Be furnished with two filter core 2' in lumen, cylindrically, water purification enters the clean water area of lumen through the barrel of filter core 2' to this filter core 2'; Cavity of resorption is soil chamber, and sewage is discharged from the blowoff valve 3' of cavity of resorption.
During filter work, treatment sewage enters filter epicoele through epicoele entrance 7', enter in filter core 2' by filter core 2' entrance, the outlet of recoil lower baffle plate 5' filter core 2' is therewith just right, treatment sewage is at filter core 2' inner filtration, the impurity being greater than filter core 2' mesh is trapped, and the water purification through filter core 2' mesh arrives the clean water area of lumen, discharges from lumen outlet 8'.
Now, the entrance of recoil overhead gage 6' and another filter core 2' is just right, open blowoff valve 3', this filter core 2' pressure release draining, there is the low-pressure area of a relative pressure lower than the outer side hydraulic pressure of filter core 2' in the inner side of recoil overhead gage 6' and filter core 2', force partially purifying water from side inflow filter core 2' filter core 2', the water purification of reflux will rinse out the contaminant particles be adsorbed on filter core 2' inwall, and flow to cavity of resorption and discharge from blowoff valve 3', realize backwash.
Filter passes through the position controlling recoil lower baffle plate 5' and recoil overhead gage 6', two filter core 2' is hocketed and filters and backwash.
During above-mentioned filter work, as shown in Figure 1, lumen outlet 8' is located at the bottom of clean water area, during filtration, pending water enters filter core 2' by epicoele, is first full of water in filter core 2', and water arrives clean water area through after filter screen, then export 8' by lumen to discharge, the water of clean water area cannot completely rise all the time, and water level is lower, cannot realize backwash.If add big yield, even if water level exports 8' beyond lumen, but water level top still has large quantity of air to discharge, air section is defined on top, clean water area, filter core top cannot realize backwash, then the top of filter core can become filled with silt and block, and filter area is fallen sharply.
A kind of settling mode adopts structure as shown in Figure 2, lumen is exported the top that 8' is located at clean water area, can improve the water level of clean water area like this, but this filter also exists the problem that some can not realize backwash.
First, backwash is realized by the import and export of the flapper on main shaft to filter core 2', because baffle plate needs freely to rotate, must leave gap between the import and export of baffle plate and filter core 2', though baffle plate has blocked the import and export of filter core 2', gap therebetween can produce pressure leakage.Backwash is the pressure that when utilizing blowdown, the pressure in contraminated zone is less than clean water area, water purification is made to enter contraminated zone from clean water area through filter core 2', backwash is carried out to filter core 2', discharged by contraminated zone, owing to there is pressure leakages, make the pressure of filter core 2' inside in fact large than the pressure outside filter screen, cause backwash to be lost efficacy.
Secondly, two filter core 2' and main shaft are all through dividing plate 4', and the position that dividing plate 4' is through is easy to occur interior leakage, and contraminated zone and clean water area will be caused to there is leak source in many places, a large amount for the treatment of sewages will directly enter clean water area from interior leak source and discharge, and greatly reduce filter effect.
In view of this, urgently for above-mentioned technical problem, design a kind of filter, this filter can realize the backwash of filter core, and has good filter effect.
Summary of the invention
The object of this invention is to provide a kind of filter, this filter not only can realize the backwash of filter core, and has good filter effect.
In order to realize above-mentioned technical purpose, the invention provides a kind of filter, comprise housing and filter core, described filter core is at least two groups, often organize the number of described filter core at least one, each described filter core is all through described housing, and its upper port and lower port are all positioned at the outside of described housing, described upper port coupling cock valve, described lower port is communicated with blowoff valve; The delivery port of described housing is positioned at the upside of described housing.
Preferably, described delivery port is arranged on the top board of described housing.
Preferably, the bottom of each described filter core is funnel-form.
Preferably, often organize described filter core and there is switch valve described at least one and blowoff valve described at least one.
Preferably, also comprise controller, described controller controls the opening and closing of each described switch valve and each described blowoff valve by the control logic of setting.
Preferably, the top board through hole of the described housing that the upper end of each described filter core is passed, the bottom hole of the described housing that lower end is passed, described top board through hole and described bottom hole are equipped with gasket seal.
Preferably, the upside of the described gasket seal of described bottom hole is also provided with sealing ring.
The invention provides a kind of filter, comprise housing and at least two group filter cores, often organize the number of filter core at least one, each filter core is all through housing, and its upper port and lower port are all positioned at the outside of housing, upper port coupling cock valve, and lower port is communicated with blowoff valve; The delivery port of housing is positioned at the upside of described housing.
During filter work, switch valve and the blowoff valve of often organizing filter core are alternately opened, and the switch valve of two groups of filter cores is alternately opened.When the switch valve of unlatching first group of filter core, close blowoff valve, pending sewage enters each filter core of first group, and the impurity being greater than filter core mesh is trapped, water purification enters the clean water area of housing through filter core mesh, and now each filter core of first group filters pending sewage; Simultaneously, close the switch valve of second group of filter core, open blowoff valve, each filter core of second group carries out blowdown, each filter core inside of second group there will be low-pressure area, makes water purification in housing inside side inflow filter core filter core, rinses out the impurity be adsorbed on filter core inwall, then discharged by blowoff valve, each filter core of second group carries out backwash and blowdown.By the control to switch valve and blowoff valve, two groups of filter cores can be made to hocket and to filter and backwash.
Two groups of filter cores are respectively filtering area and blowdown district, and enclosure interior is clean water area, and the delivery port of clean water area is arranged on the upside of housing, when clean water area is by delivery port draining, water level is higher, when filter-core back-flushing is washed, can carry out backwash to the filtration fraction that filter core is positioned at housing.
Each filter core of filter is all through top board and the base plate of housing, and the filtration fraction that filter core is positioned at housing does not exist leak source, can ensure filter effect.
In the course of work, often organize the upper port of filter core and lower port by Valve controlling, the pressure leakage in filter core can be avoided, guarantee that the backwash of filter core can realize.
In a kind of preferred mode, delivery port is arranged on the top board of housing, when clean water area is by delivery port draining, air in clean water area all can be discharged, water purification is full of, when filter-core back-flushing is washed, because the water level of clean water area is higher in clean water area, can carry out backwash to the whole filtration fraction that filter core is positioned at housing, backwash effect is better.
In a kind of mode, the bottom of each filter core can be funnel-form, and when filter-core back-flushing is washed, the less water yield just can wash away impurity, contributes to blowdown.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of typical back flush type filter;
Fig. 2 is the structural representation after the back flush type filter improvement shown in Fig. 1;
Fig. 3 is the result schematic diagram of a kind of detailed description of the invention of filter provided by the present invention;
Fig. 4 is the top view of the filter shown in Fig. 3;
Fig. 5 is the top view of the another kind of detailed description of the invention of filter provided by the present invention;
Fig. 6 is the top view of the third detailed description of the invention of filter provided by the present invention;
Fig. 7 is the structural representation of the top board through hole of the housing of filter provided by the present invention;
Fig. 8 is the structural representation of the bottom hole of the housing of filter provided by the present invention.
Wherein, the Reference numeral in Fig. 1 and Fig. 2 is as follows:
Housing 1'; Filter core 2'; Blowoff valve 3'; Dividing plate 4'; Recoil lower baffle plate 5'; Recoil overhead gage 6'; Epicoele entrance 7'; Lumen outlet 8';
Reference numeral in Fig. 3 to Fig. 8 is as follows:
Housing 1; Filter core 2; Switch valve 3; Blowoff valve 4; Delivery port 5; Gasket seal 6; Sealing ring 7.
Detailed description of the invention
Core of the present invention is to provide a kind of filter, and this filter not only can realize the backwash of filter core, and has good filter effect.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 3 and Fig. 4, Fig. 3 is the result schematic diagram of a kind of detailed description of the invention of filter provided by the present invention, and Fig. 4 is the top view of the filter shown in Fig. 3.
In a kind of concrete embodiment, the invention provides a kind of filter, comprise housing 1 and at least two group filter cores 2, the number often organizing filter core 2 is at least one, each filter core 2 is all through housing 1, its upper port and lower port are all positioned at the outside of housing 1, upper port coupling cock valve 3, and lower port is communicated with blowoff valve 4; The delivery port 5 of housing 1 is positioned at the upside of housing 1.
During filter work, switch valve 3 and the blowoff valve 4 of often organizing filter core 2 are alternately opened, and the switch valve 3 of two groups of filter cores 2 is alternately opened.
Open the switch valve 3 of first group of filter core 2, close blowoff valve 4, pending sewage enters each filter core 2 of first group, and the impurity being greater than filter core 2 mesh is trapped, water purification enters the clean water area of housing 1 through the mesh of filter core 2 sidewall, and now each filter core 2 of first group filters pending sewage.
Simultaneously, close the switch valve 3 of second group of filter core 2, open blowoff valve 4, each filter core 2 of second group carries out blowdown, each filter core 2 inside of second group will there will be low-pressure area, make the water purification in housing 1 inside the side inflow filter core 2 of filter core 2, rinse out the impurity be adsorbed on filter core 2 inwall, then discharged by blowoff valve 4, now each filter core 2 of second group carries out backwash and blowdown.
By the control to switch valve 3 and blowoff valve 4, two groups of filter cores 2 can be made to hocket and to filter and backwash.Two groups of filter cores 2 are respectively filtering area and blowdown district, housing 1 inside is clean water area, the delivery port 5 of clean water area is arranged on the upside of housing 1, the upside of housing 1 refers to that the side of the top board of housing 1 or housing 1 is near the position of top board, when clean water area is by delivery port 5 draining, water level is higher, and can carry out backwash to the filtration fraction that filter core 2 is positioned at housing 1, backwash effect is better.
The housing 1 of filter is the cavity closed, each filter core 1 is all from top to bottom through top board and the base plate of housing 1, the upper port of each filter core 2 and lower port are all positioned at the outside of housing 1, there is not leak source in the filtration fraction that then filter core 2 is positioned at housing 1, filter can adopt the stainless steel filtering net of high strength, during filtration, sewage filters can enter clean water area through filter core 2, can ensure that filter has good filter effect.
In the filter course of work, upper port and the lower port of often organizing filter core 2 are controlled by switch valve 3 and blowoff valve 4 respectively, can ensure the pressure in filter core 2.When filter core 2 filters, the pressure in filter core 2 is greater than the pressure of clean water area, and water purification flows into clean water area by filter core 2 and realizes filtering; When filter core 2 carries out backwash, the pressure in filter core 2 is less than the pressure of clean water area, and water purification flows into filter core 2 and realizes backwash.No matter filter core 2 is in filtration condition or backwash state, and guarantee that the pressure in filter core 2 is not revealed, filter core 2 can obtain good filter effect and good backwash effect.
The filter of this structure, compared with prior art, had both had good filter effect, had had again good backwash effect; Eliminate chamber, upper, middle and lower three of the prior art, be arranged in filtering area, clean water area and contraminated zone in same housing 1, the compact conformation of filter, takes full advantage of the space of housing 1.
In a kind of preferred mode, delivery port 5 is arranged on the top board of housing 1, when clean water area is by delivery port 5 draining, the air in clean water area all can be discharged, is full of water purification in clean water area.During filter core 2 backwash, because the water level of clean water area is higher, backwash can be carried out to the whole filtration fraction that filter core 2 is positioned at housing 1, obtain better backwash effect.This filter can realize high accuracy, end granularity, the sewage water filtration of high concentration, such as, can meet the processing requirements of wet electrical dust precipitator buck.
In another kind of preferred mode, the bottom of each filter core 2 can be funnel-form.The bottom funnel-shaped portion of filter core 2 is communicated with blowoff valve 4, and when filter core 2 carries out backwash, the impurity and the mud that contribute to being deposited on filter core 2 inside utilize the gravity of self to flow away, and impurity and mud just can wash away by the less water yield, contribute to blowdown.
Please refer to Fig. 5 and Fig. 6, Fig. 5 is the top view of the another kind of detailed description of the invention of filter provided by the present invention, and Fig. 6 is the top view of the third detailed description of the invention of filter provided by the present invention.
Filter core 2 is divided into two groups by the filter in the present invention, and often can to comprise the number of at least one filter core 2, two groups of filter cores 2 identical for group, and such as, filter shown in Fig. 4 often group comprises two filter cores 2; Filter shown in Fig. 5 often group comprises five filter cores 2, filter shown in Fig. 6 often group comprises six filter cores 2, can select the number of filter core 2 according to filter area required in the filter course of work, housing 1 profile can change according to the Rational Arrangement of filter core 2 by its number.
Concrete, each switch valve 3 and each blowoff valve 4 can be two way cock valve, and each filter core 2 often in group can all be communicated with same blowoff valve 4 with same switch valve 3, are controlled the duty of each filter core 2 in same group by a switch valve 3 and blowoff valve 4; Also a switch valve 3 and a blowoff valve 4 can be set one or several filter core 2, ensure in work that the duty of filter core 2 in same group is identical, this kind of structure can be concrete according to filter need of work, increase or reduce the number of the filter core 2 worked in every group.
In embodiment concrete further, the switch valve 3 of two groups of filter cores 2 can also be controlled by a three-way valve, three paths of three-way valve are communicated with plumbing drain, first group of filter core 2 and second group of filter core 2 respectively, control two groups of filter cores 2 respectively and close with the connected sum of plumbing drain; Similar, the blowoff valve 4 of two groups of filter cores 2 also can be controlled by a three-way valve.
Each controlled valve can be manually also for electronic, such as, when being magnetic valve, can be pressed the opening and closing of each switch valve of setup control logic control 3 and each blowoff valve 4 by controller, realize full automatic sewage water filtration process.
Controller can be controlled by pressure reduction, also can by the duty of the modified filter of timing controlled.When accumulation of impurities in filter increases to setting value at the pressure reduction that filter core 2 surface causes filter to import and export, or when timer reaches preset time, send signal by controller and control the unlatching of each magnetic valve or close; When filter inlet outlet pressure differential recovers normal, or timer setting-up time terminates, and changes switch valve 3 and blowoff valve 4 duty of two groups of filter cores, and recalculates pressure reduction or time, so circulate.In whole process, material continues to flow, and the water consumption of backwash is less, and the work of filter can realize serialization, automation.
Please refer to Fig. 7 and Fig. 8, Fig. 7 is the structural representation of the top board through hole of the housing of filter provided by the present invention, and Fig. 8 is the structural representation of the bottom hole of the housing of filter provided by the present invention.
In the respective embodiments described above, the top board through hole of the housing 1 that the upper end of each filter core 2 is passed, the bottom hole of the housing 1 that lower end is passed, is equipped with gasket seal 6 at the top board through hole of housing 1 and bottom hole.Concrete, as shown in Figure 7 and Figure 8, the upper port of each filter core 2 is connected with all adopting flange and gasket seal 6 between housing 1, between lower port with housing 1, can arrange multiple gasket seal 6, guarantees that the top board through hole of housing 1 and bottom hole keep sealing.
Further, as shown in Figure 8, sealing ring 7 can also be set in the upside of the gasket seal 6 of bottom hole, sealing ring 7 can be hydropneumatic O type circle, also can not occur poorly sealed even if sealing ring 7 and gasket seal 6 produced location, because multiple O type circle independently can bear seal request, guarantee that the bottom hole of housing 1 keeps sealing.
Above filter provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (4)
1. a filter, comprise housing (1) and filter core (2), it is characterized in that, described filter core (2) is at least two groups, often organize the number of described filter core (2) at least one, each described filter core (2) is all through described housing (1), its upper port and lower port are all positioned at the outside of described housing (1), described upper port coupling cock valve (3), described lower port is communicated with blowoff valve (4); The delivery port (5) of described housing (1) is arranged on the top board of described housing (1);
The top board through hole of the housing that the upper end of each filter core is passed, the bottom hole of the housing that lower end is passed, is equipped with gasket seal at the top board through hole of housing and bottom hole;
In the upside of the gasket seal of bottom hole, sealing ring is set.
2. filter as claimed in claim 1, it is characterized in that, the bottom of each described filter core (2) is funnel-form.
3. filter as claimed in claim 2, is characterized in that, often organize described filter core (2) and have switch valve described at least one (3) and blowoff valve (4) described at least one.
4. filter as claimed in claim 3, is characterized in that, also comprise controller, and described controller controls the opening and closing of each described switch valve (3) and each described blowoff valve (4) by the control logic of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210566398.6A CN102974162B (en) | 2012-12-21 | 2012-12-21 | Filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210566398.6A CN102974162B (en) | 2012-12-21 | 2012-12-21 | Filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102974162A CN102974162A (en) | 2013-03-20 |
| CN102974162B true CN102974162B (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210566398.6A Active CN102974162B (en) | 2012-12-21 | 2012-12-21 | Filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN102974162B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386226A (en) * | 2013-08-09 | 2013-11-13 | 蒋浩 | Full-automatic filtration and cyclic utilization device for gray water of wet-type electric precipitator |
| CN104030516B (en) * | 2014-06-25 | 2015-12-02 | 余姚迈悦净水科技有限公司 | A kind of purifier |
| CN110180236A (en) * | 2019-06-19 | 2019-08-30 | 苏州久之新能源科技有限公司 | Multi-joint filter device |
| CN110975379B (en) * | 2019-12-10 | 2021-08-24 | 君品集团有限公司 | Full-automatic back-washing precision filter |
| CN117482665B (en) * | 2023-12-08 | 2024-05-03 | 上海上阳流体科技有限公司 | Filter core is used in coating workshop dust recovery |
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| GB2185418A (en) * | 1986-01-15 | 1987-07-22 | Dowty Mining Machinery Ltd | Duplex filter |
| KR100199338B1 (en) * | 1995-12-29 | 1999-06-15 | 송 재 식 | Part for water cleaner |
| CN2714130Y (en) * | 2004-06-21 | 2005-08-03 | 上海万森水处理有限公司 | Filtering apparatus capable of bidirectionally flushing filtering core |
| CN201370993Y (en) * | 2009-03-06 | 2009-12-30 | 南通航海机械有限公司 | Automatic-cleaning water filter |
| CN102380251A (en) * | 2011-09-19 | 2012-03-21 | 北京矿大节能科技有限公司 | Full-automatic mining wastewater filter and operation method thereof |
| CN202962102U (en) * | 2012-12-21 | 2013-06-05 | 福建龙净环保股份有限公司 | Filter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10235115A (en) * | 1997-02-25 | 1998-09-08 | Brother Ind Ltd | Circulatory purifying device |
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2012
- 2012-12-21 CN CN201210566398.6A patent/CN102974162B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2185418A (en) * | 1986-01-15 | 1987-07-22 | Dowty Mining Machinery Ltd | Duplex filter |
| KR100199338B1 (en) * | 1995-12-29 | 1999-06-15 | 송 재 식 | Part for water cleaner |
| CN2714130Y (en) * | 2004-06-21 | 2005-08-03 | 上海万森水处理有限公司 | Filtering apparatus capable of bidirectionally flushing filtering core |
| CN201370993Y (en) * | 2009-03-06 | 2009-12-30 | 南通航海机械有限公司 | Automatic-cleaning water filter |
| CN102380251A (en) * | 2011-09-19 | 2012-03-21 | 北京矿大节能科技有限公司 | Full-automatic mining wastewater filter and operation method thereof |
| CN202962102U (en) * | 2012-12-21 | 2013-06-05 | 福建龙净环保股份有限公司 | Filter |
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| CN102974162A (en) | 2013-03-20 |
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