CN202844685U - Pulse full-automatic backwashing filter - Google Patents
Pulse full-automatic backwashing filter Download PDFInfo
- Publication number
- CN202844685U CN202844685U CN 201220449012 CN201220449012U CN202844685U CN 202844685 U CN202844685 U CN 202844685U CN 201220449012 CN201220449012 CN 201220449012 CN 201220449012 U CN201220449012 U CN 201220449012U CN 202844685 U CN202844685 U CN 202844685U
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- suction nozzle
- filter
- water
- rotating shaft
- filtering
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Abstract
The utility model discloses a pulse full-automatic backwashing filter which comprises a filter main bracket, a filtering core and a suction nozzle, wherein the filtering core comprises an inner bracket and a plurality of layers of filtering nets arranged on the periphery of the inner bracket; the filter main bracket is sleeved outside the filtering core; a filtering region is formed inside the inner bracket; a dirt storing region is arranged between the inner bracket and the filtering nets; a clean water region is formed between the filtering nets and filter main bracket; the filter main bracket is provided with a water inlet, a water outlet and a drain outlet; the water inlet, the filtering region, the dirt storing region, the clean water region and the water outlet are sequentially communicated; the dirt storing region is communicated with the drain outlet; a suction opening of the suction nozzle is stuck on the inner wall of the inner bracket; and the suction nozzle is mounted on the filter main bracket in a manner of rotatably absorbing impurities inside the dirt storing region and beside the dirt storing region and discharging the impurities to the drain outlet. In a backwashing process, the suction opening of the suction nozzle is stuck on the inner wall of the inner bracket and the inside of the suction nozzle has no water pressure, so that the backwashing pressure difference is greater than the filtering pressure difference; and the filtering nets can be backwashed by regions and the backwashing effect is improved. The filtering nets and the suction nozzle are not contacted so that the abrasion can be reduced and the filtering nets are easier to replace and backwash.
Description
Technical field
The utility model relates to a kind of filter, particularly relates to a kind of pulse full-automatic backwash filter.
Background technology
Traditional full-automatic back washing filter comprises the filter core of filter main support, suction nozzle and cylindrical structure, filter core comprises filter screen, filter screen surrounds tubular and is installed on the filter main support, and suction nozzle is arranged in this filter screen, and the suction inlet of suction nozzle contacts or do not contact with the inner surface of filter screen.Also be provided with water inlet, delivery port and sewage draining exit on the filter main support.
When adopting traditional full-automatic back washing filter to filter, closing sewage draining exit and suction nozzle stops not turn, water enters the inside of filter main support from water inlet, under the effect of the pressure reduction of hydraulic pressure, water is discharged from delivery port after multistorey strainer mesh filters from the inside of filter main support, for production and application.During backwash, open sewage draining exit and rotary suction nozzle, because the hydraulic pressure in the suction nozzle is less than the filter core inside water pressure, under the effect of the pressure reduction of hydraulic pressure, water finally is discharged to outside the filter by suction inlet and the sewage draining exit of suction nozzle, thereby filter screen is carried out surface clean.
There is following problem in the backwash of this structure:
1, the rotary machine power that rests on the suction nozzle that the dirt on the filter screen can be rotated is compressed into filter screen again, and more press more real, anti-dirt easy-clear not when cleaning filter screen;
2, the rotary machine power of suction nozzle meeting direct friction filter screen, the loss that increases filter screen;
3, because the outer surface of filter screen is the face of cylinder, suction nozzle can't realize that subregion cleans to filter screen, does not clean and concentrates, and cleaning performance is poor;
Even the suction inlet of 4 suction nozzles and filter screen close contact, the zero hydraulic pressure in the time of also can't realizing recoiling draining can't make the pressure reduction of backwash greater than filtration pressure difference, and the effect of backwash is relatively poor.The suction inlet pressure of suction nozzle so water can not flow to suction inlet after the filter, does not have the backwash effect less than the rear hydraulic pressure of filter.
5, do not contact with filter screen such as the suction nozzle suction inlet, then backwash is more inoperative, because the suction inlet pressure of suction nozzle is pressure before the filter, before the filter pressure greater than filter after pressure, so at all can't backwash.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of pulse full-automatic backwash filter that can improve backwash effect and reduce the filter screen wearing and tearing.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of pulse full-automatic backwash filter, the filter main support that comprises cylindrical structure, the filter core of cylindrical structure, and suction nozzle, described filter core comprises the inner support of cylindrical structure and is around in the outer multistorey strainer mesh of this inner support, the filter main support is enclosed within outside the filter core, the inner filtering area that forms of inner support, be provided with a plurality of dirty districts that deposit between inner support and the multistorey strainer mesh, form clear water zone between multistorey strainer mesh and the filter main support, the filter main support is provided with water inlet, delivery port and sewage draining exit, water inlet, filtering area, deposit dirty district, clear water zone and delivery port are communicated with successively, and deposit dirty district and sewage draining exit connection; Described suction nozzle is arranged in the inner support, and the suction inlet of this suction nozzle is attached on the inwall of inner support, and this suction nozzle with rotation absorb deposit in the dirty district and deposit dirty district nearby impurity and the mode that drains into sewage draining exit be installed on the filter main support.
Described inner support comprises cylindrical shell, and it axially is buckled with a plurality of subregion gussets the outer, the face of cylinder of cylindrical shell, forms the above-mentioned dirty district that deposits between the adjacent two subregion gussets, lays a plurality of water holes on the face of cylinder of the cylindrical shell between the adjacent two subregion gussets; The subregion gusset described multistorey strainer mesh that is sticked outward, the mesh of this multistorey strainer mesh is changed less by as many as from the inside to the outside.
The suction inlet of described suction nozzle is fine strip shape and extends along tubular axis, and a plurality of water holes between the corresponding above-mentioned adjacent two subregion gussets arrange.
Described suction nozzle is installed on the described filter main support by rotating shaft, is provided with the water cavity that is communicated with suction nozzle and sewage draining exit in this rotating shaft.
Also be provided with the blowdown chamber on the described filter main support, described sewage outfalls setting is in the bottom of this blowdown chamber; Described rotating shaft is stretched into the blowdown chamber after passing cylindrical shell, and corresponding blowdown chamber is provided with mudhole in this rotating shaft.
Described sewage draining exit place is equipped with the pulse draining valve.
Described water hole between described adjacent three subregion gussets is laid staggeredly.
The suction inlet of described suction nozzle forms soft the contact with the inner tube wall of described cylindrical shell.
The end that water inlet is pointed in described rotating shaft is equipped with rotating shaft spindle nose locator.
The pulse full-automatic backwash filter also comprises be used to the positioner that limits the corresponding described water hole of described suction nozzle.
After adopting said structure, a kind of pulse full-automatic backwash filter of the present utility model has following beneficial effect:
When one, filtering, close sewage draining exit and suction nozzle does not rotate, water enters the filtering area of inner support inside from water inlet, and under the effect of pressure reduction, then water discharge from delivery port from entering clear water zone from filtering area after multistorey strainer mesh filters successively.When cleaning filter screen is counter, at first, open sewage draining exit and rotary suction nozzle, when the suction inlet of suction nozzle rotates to a certain when depositing place, dirty district, because the hydraulic pressure in the suction nozzle is zero hydraulic pressure, this deposits the impurity that retains and dirt in the dirty district, and near the water the suction nozzle is under the effect of the pressure reduction of hydraulic pressure, suction inlet and sewage draining exit by suction nozzle finally is discharged from outside the filter successively, thereby the above-mentioned water of depositing in the dirty district is carried out effective backwash.Then, suction nozzle continues to rotate to the next one and deposits dirty district, and this is deposited dirty district carry out backwash.So circulation can be carried out backwash to respectively depositing dirty district one by one.When adopting the utility model backwash, because the suction inlet of suction nozzle is attached on the inwall of inner support, the suction inlet of suction nozzle is fitted with inner support, so the water before the filter advances in the suction inlet less than suction nozzle during backwash, so the suction inlet hydraulic pressure that has guaranteed suction nozzle is less than the rear hydraulic pressure of filter; When backwash, water is because of the relation of pressure reduction after the filter, and nature flows to suction nozzle by filter screen, be zero hydraulic pressure in the suction nozzle, the hydraulic pressure of depositing in the dirty district is substantially equal to backwash pressure reduction, the filtration pressure difference when backwash pressure reduction is greater than filtration like this, can carry out the subregion backwash to filter screen, and can reach better backwash effect.And filter screen and suction nozzle are contactless, can reduce the wearing and tearing of filter screen, and are easier to change and backwash.
Two, the interaction energy by the pulse draining valve more effectively cleans filter screen.
Description of drawings
View when Fig. 1 is the filtration of a kind of pulse full-automatic backwash filter of the present utility model;
View when Fig. 2 is anti-cleans of a kind of pulse full-automatic backwash filter of the present utility model;
Fig. 3 is the decomposing schematic representation of a kind of pulse full-automatic backwash filter of the present utility model;
Fig. 4 is the structural representation of the inner support in the utility model;
Fig. 5 is suction nozzle in the utility model and the assembling schematic diagram of filter core;
Fig. 6 is the structural representation of the rotating shaft spindle nose locator in the utility model.
Among the figure:
Filter main support 1 water inlet 10a
Filter core 2 filtering area 20a
Deposit dirty district 20b clear water zone 20c
Subregion gusset 212 water holes 213
Rotating shaft spindle nose locator 33 water holes 34
The specific embodiment
In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.
Shown in Fig. 1 to 6, a kind of pulse full-automatic backwash filter of the present utility model comprises filter main support 1, filter core 2 and suction nozzle 3.
Filter main support 1 adopts cylindrical structure, and filter main support 1 is enclosed within outside the filter core 2 of cylindrical structure.
As a preferred embodiment of the present utility model, inner support 21 comprises cylindrical shell 211, it axially is buckled with a plurality of subregion gussets 212 outer, the face of cylinder of cylindrical shell 211, form between the adjacent two subregion gussets 212 and deposit dirty district 20b, lay a plurality of water holes 213 on the face of cylinder of the cylindrical shell 211 between the adjacent two subregion gussets 212.Preferably, deposit water hole 213 corresponding to 20b, dirty district for one and arrange in a rowly, the water hole 213 between adjacent three subregion gussets 212 is laid staggeredly.Multistorey strainer mesh 22 is sticked outside subregion gusset 212, the mesh of multistorey strainer mesh 22 is changed less by as many as from the inside to the outside, the filter screen 22 close inner supports 21 that mesh is many, can play better the sealing function with inner support 21, reduce the water of filtering area 20a by flowing to suction nozzle 3 herein, the foreign material in the water can be blocked in and deposit in the dirty district 20b.
As a preferred embodiment of the present utility model, the suction inlet of suction nozzle 3 is fine strip shape and along cylindrical shell 211 Axis Extensions, and a plurality of water holes between the corresponding adjacent two subregion gussets 212 213 arrange.Suction nozzle 3 is installed on the filter main support 1 by rotating shaft 31, is provided with the water cavity 32 that is communicated with suction nozzle 3 and sewage draining exit 10c in the rotating shaft 31.Preferably, rotating shaft 31 is provided with the positioner in restriction suction nozzle 3 corresponding water holes 213.By positioner, make the suction inlet of suction nozzle 3 aim at more accurately water hole 213, the water route of backwash is better unobstructed, and then the clean rate when improving backwash.Certainly, above-mentioned positioner can realize by electric control gear that also for example above-mentioned positioner adopts sensor structure, after electric control part described later divides the suction inlet of the suction nozzle 3 that receives inductor to aim at the signal in water hole 213, send instruction rotating shaft 31 is stopped operating, to 22 backwash a period of times of filter screen.
Also be provided with blowdown chamber 11 on the filter main support 1, sewage draining exit 10c is arranged on the bottom of blowdown chamber 11, and sewage draining exit 10c place is equipped with pulse draining valve 12.Rotating shaft 31 is stretched into blowdown chamber 11 after passing cylindrical shell 211, and corresponding blowdown chamber 11 is provided with mudhole in the rotating shaft 31.
In addition, the automatically controlled part of filter adopts existing structure, and it mainly comprises rotating shaft navigation system, intake pressure inductor and the discharge pressure inductor etc. of control centre, rotating shaft variable speed electric motors, particularly, automatic control electric control system, backwash suction nozzle.Control centre receives the signal of intake pressure inductor and discharge pressure inductor, and the corresponding connection of rotating shaft navigation system also is connected with automatic control electric control system in control centre with the backwash suction nozzle.Control centre also controls the start and stop of rotating speed and the pulse draining valve 12 of rotating shaft variable speed electric motors, particularly.The automatically controlled part of filter does not repeat them here as known technology.
When adopting the utility model normal operation to filter, close pulse draining valve 12, and rotating shaft 31 is not rotated.Sewage, contain the water of impurity or enter the cylindrical shell 211 filtering area 20a of filter core 2 from the water hole 34 on water inlet 10a, the rotating shaft spindle nose locator 33 from the water at water source inner, because the hydraulic pressure of cylindrical shell 211 filtering area 20a is 3 kg/cm, be 0.3MPa, hydraulic pressure in the clear water zone 20c is 2 kg/cm, under differential pressure action, water enters clear water zone 20c by the water hole 213 on the cylindrical shell 211 after multistorey strainer mesh 22 filters, discharge at last the water of cleaning from delivery port 10b, use for production, agricultural, life.
After work a period of time, intake pressure is constant and discharge pressure diminishes, when pressure reduction reaches certain setting value, and startup automatic back-washing function.
At first, water enters from water inlet 10a, open pulse draining valve 12 and rotating shaft 31, the suction nozzle 3 that rotating shaft 31 drives on it rotates together, when the suction inlet of suction nozzle 3 rotates to a certain osculum 213 place that deposits 20b place, dirty district, rotating shaft 31 stays for some time for backwash, time is adjustable, because the hydraulic pressure in the suction nozzle 3 is 0 hydraulic pressure, this deposits the impurity that retains and dirt in the dirty district 20b, water passes through filter screen 22 successively after the filter under the effect of the rear 2 kilograms of hydraulic pressure of filter, the suction inlet of suction nozzle 3, water cavity 32 in the rotating shaft 31 and the above-mentioned mudhole in the rotating shaft 31 enter blowdown chamber 11, at last by outside pulse draining valve 12 discharge filters, thereby the above-mentioned water of depositing in the dirty district 20b is carried out effective backwash.Water constantly passes through filter screen 22 in the mode of pulse after the filter, thereby reaches the purpose of cleaning filter screen.
Secondly, rotating shaft 31 continuation rotations and the suction nozzle 3 that drives on it rotate to the osculum 213 that the next one is deposited 20b place, dirty district together, and this are deposited the dirty 20b of district carry out backwash.So circulation can be carried out backwash to respectively depositing dirty district 20b one by one.
Because the water hole 213 on the inner support 21 is laid staggeredly, axle turns 31 rotations when moving like this, can be swept in the next row water hole 213 by suction nozzle 3 if any dirt on the surface of inner support 21 and by the backwash eliminating, rotating shaft 31 also is difficult for stuck.Button is established subregion gusset 212 on the face of cylinder of inner support 21, can form a plurality of non-interfering dirty district 20b that deposit, and by to respectively depositing one by one backwash of dirty district 20b, can improve cleaning performance.Preferably, set the quantity of depositing dirty district 20b according to size and the specification of filter core 2, if the diameter of cylindrical shell 211 can arrange than multi partition gusset 212 more greatly.The inner support 21 outer filter screens 22 that enclose, contactless because of filter screen 22 and suction nozzle 3, can reduce filter screen 22 wearing and tearing, and be easier to change and backwash.
The utility model utilizes the water outlet pressure reduction of filtered water and subregion cleaning that filter screen 22 is carried out pulse backwashing, during backwash, owing to being zero hydraulic pressure in the suction nozzle 3, the hydraulic pressure of depositing in the dirty district 20b is substantially equal to backwash pressure reduction, the filtration pressure difference when backwash pressure reduction is greater than filtration like this.Pulsating water was pressed when particularly backwash realized backwash by pulse draining valve 12, can reach better backwash effect.In addition, because adopting the subregion backwash, so the pressure drop during backwash is little, can divide 40-80 district, be equivalent to the filter area variation of 1.25%-2.5%.
In sum, a kind of pulse full-automatic backwash filter of the present utility model has the following advantages:
1, the dirt that rests on the filter screen 22 can directly not contact with suction nozzle 3;
2, the inwall of the cylindrical shell 211 of inner support 21 can process with suction nozzle 3 concentricity tolerances be 10 precision, add being flexible coupling on the suction inlet of suction nozzle 3, the suction inlet of suction nozzle 3 and cylindrical shell 211 form close contact, play effective seal isolation effect during backwash, water is play not, and then realize in the backwash suction nozzle 3 being draining zero hydraulic pressure, be conducive to improve anti-cleaning performance;
3, suction nozzle 3 does not directly contact with filter screen 22, so can not damage filter screen 22;
4, because of the unique design of inner support 21 and the interior carefully outer thick structure of filter screen 22, can reach the purpose of subregion, and can form the dirty district 20b of depositing of Tibetan dirt, the mutual play of water during backwash, water saving, quick, effective;
5, because being draining zero hydraulic pressure in the backwash suction nozzle 3, can install pulse draining valve 12 additional in discharge outlet, thereby reach the backwash pressure reduction that is higher than filtration pressure difference, in the subregion backwash, can thoroughly clean filter screen 22 with pulse.
Above-described embodiment and accompanying drawing and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present utility model to its suitable variation or modification of doing.
Claims (10)
1. pulse full-automatic backwash filter, the filter main support that comprises cylindrical structure, the filter core of cylindrical structure, and suction nozzle, it is characterized in that: described filter core comprises the inner support of cylindrical structure and is around in the outer multistorey strainer mesh of this inner support, the filter main support is enclosed within outside the filter core, the inner filtering area that forms of inner support, be provided with a plurality of dirty districts that deposit between inner support and the multistorey strainer mesh, form clear water zone between multistorey strainer mesh and the filter main support, the filter main support is provided with water inlet, delivery port and sewage draining exit, water inlet, filtering area, deposit dirty district, clear water zone and delivery port are communicated with successively, and deposit dirty district and sewage draining exit connection; Described suction nozzle is arranged in the inner support, and the suction inlet of this suction nozzle is attached on the inwall of inner support, and this suction nozzle with rotation absorb deposit in the dirty district and deposit dirty district nearby impurity and the mode that drains into sewage draining exit be installed on the filter main support.
2. pulse full-automatic backwash filter as claimed in claim 1, it is characterized in that: described inner support comprises cylindrical shell, it axially is buckled with a plurality of subregion gussets the outer, the face of cylinder of cylindrical shell, form the above-mentioned dirty district that deposits between the adjacent two subregion gussets, lay a plurality of water holes on the face of cylinder of the cylindrical shell between the adjacent two subregion gussets; The subregion gusset described multistorey strainer mesh that is sticked outward, the mesh of this multistorey strainer mesh is changed less by as many as from the inside to the outside.
3. pulse full-automatic backwash filter as claimed in claim 2 is characterized in that: the suction inlet of described suction nozzle is fine strip shape and extends along tubular axis, and a plurality of water holes between the corresponding above-mentioned adjacent two subregion gussets arrange.
4. pulse full-automatic backwash filter as claimed in claim 2, it is characterized in that: described suction nozzle is installed on the described filter main support by rotating shaft, is provided with the water cavity that is communicated with suction nozzle and sewage draining exit in this rotating shaft.
5. pulse full-automatic backwash filter as claimed in claim 4, it is characterized in that: also be provided with the blowdown chamber on the described filter main support, described sewage outfalls setting is in the bottom of this blowdown chamber; Described rotating shaft is stretched into the blowdown chamber after passing cylindrical shell, and corresponding blowdown chamber is provided with mudhole in this rotating shaft.
6. pulse full-automatic backwash filter as claimed in claim 5, it is characterized in that: described sewage draining exit place is equipped with the pulse draining valve.
7. pulse full-automatic backwash filter as claimed in claim 2, it is characterized in that: the described water hole between described adjacent three subregion gussets is laid staggeredly.
8. pulse full-automatic backwash filter as claimed in claim 2, it is characterized in that: the suction inlet of described suction nozzle forms soft the contact with the inner tube wall of described cylindrical shell.
9. pulse full-automatic backwash filter as claimed in claim 4 is characterized in that: the end that water inlet is pointed in described rotating shaft is equipped with rotating shaft spindle nose locator.
10. pulse full-automatic backwash filter as claimed in claim 4 is characterized in that: also comprise be used to the positioner that limits the corresponding described water hole of described suction nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220449012 CN202844685U (en) | 2012-09-04 | 2012-09-04 | Pulse full-automatic backwashing filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220449012 CN202844685U (en) | 2012-09-04 | 2012-09-04 | Pulse full-automatic backwashing filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202844685U true CN202844685U (en) | 2013-04-03 |
Family
ID=47975924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220449012 Withdrawn - After Issue CN202844685U (en) | 2012-09-04 | 2012-09-04 | Pulse full-automatic backwashing filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202844685U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102824775A (en) * | 2012-09-04 | 2012-12-19 | 福建百川资源再生科技有限公司 | Pulse full-automatic backwash filter |
-
2012
- 2012-09-04 CN CN 201220449012 patent/CN202844685U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102824775A (en) * | 2012-09-04 | 2012-12-19 | 福建百川资源再生科技有限公司 | Pulse full-automatic backwash filter |
| CN102824775B (en) * | 2012-09-04 | 2016-03-02 | 福建百川资源再生科技有限公司 | Pulse full-automatic backwash filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130403 Effective date of abandoning: 20160302 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |