CN203724872U - Multi-media raw water pre-filtration device - Google Patents
Multi-media raw water pre-filtration device Download PDFInfo
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- CN203724872U CN203724872U CN201320757878.0U CN201320757878U CN203724872U CN 203724872 U CN203724872 U CN 203724872U CN 201320757878 U CN201320757878 U CN 201320757878U CN 203724872 U CN203724872 U CN 203724872U
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- water
- filter screen
- filter
- water outlet
- tank body
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Abstract
The utility model discloses a multi-media raw water pre-filtration device. The multi-media raw water pre-filtration device comprises a filter tank, tank supporting legs, an air outlet and a filtered water outlet, wherein a water inlet is formed in the top of the filter tank, a water distributor is arranged at the lower end of the water inlet, a water distributor pipe body is made of a stainless steel pipe, the bottom of the pipe body is connected to a disc-shaped water outlet spray head by virtue of an internal thread fastener, and a plurality of circular water outlets are regularly formed in a water outlet face plate of the disc-shaped water outlet spray head; an upper layer of annular support bars and a lower layer of annular support bars are welded in the middle part of the filter tank, four holes are respectively and symmetrically formed in the annular support bars, an upper layer of inversely conical filter screen and a lower layer of inversely conical filter screen are respectively locked and fixed by using the holes in the annular support bars and locknuts, and a cylindrical filter screen is welded at the bottom of the lower layer of inversely conical filter screen; a layer of filter cloth is respectively adhered to the outer sides of the upper layer of inversely conical filter screen and the lower layer of inversely conical filter screen, and three layers of different medium filter materials are filled among interlayers. The multi-media raw water pre-filtration device is simple in structure, large in filtration area and capable of effectively removing suspended matters and residual chlorine in water; the filter materials are difficult to harden.
Description
Technical field
The utility model belongs to water treatment field, particularly the former water pre-filtering device of a kind of multimedium.
Background technology
In pure water preparation, reverse osmosis membrane, as main filter plant, has determined pure water output quality at present, and the difficult replacing of reverse osmosis membrane simultaneously and cost are higher.Therefore, for extending reverse osmosis membrane service life, usually need before membrane filter system, increase pretreatment filtration equipment and play the effect of protection reverse osmosis membrane, as quartz filter, it also has good removal effect to the suspension in water.But its column type filter courses that adopt more, such structure of filtering layer, not only makes the filter area of filter be limited in the area of filter plate, and then the rate of filtration and the contamination capacity of restriction filter, and easily make that filtrate in filter course hardens, deposition even forms filter cake, cause pure water yield reducation.
Summary of the invention
For addressing the above problem, the purpose of this utility model is to provide removes suspension and chlorine residue in water, filter area is large, anti-compaction, can backwash the former water pre-filtering device of a kind of multimedium.
The utility model solves the technical scheme that its technical problem adopts: filter tank body, tank body feet, venthole, filtered water outlet, filter tank body top arranges water inlet, the switching of water inlet water inlet pipe middle part has backwash delivery port, water inlet upper end exit surface is external screw thread, water inlet lower end arranges water-locator, water-locator body adopts stainless steel tube to make, body bottom is connected with discoid Water outlet spray head by internal thread securing member, and some regularly arranged circular apopores are set on the water outlet panel of discoid Water outlet spray head; Filter tank body middle part is welded with upper and lower two-layer annular brace bar, on annular brace bar, symmetry is opened four holes respectively, utilize on annular brace bar perforate and the locking nut upper and lower two-layer back taper filter screen that is locked respectively, a cylinder type filter net is welded in lower floor's back taper filter screen bottom; Upper and lower two-layer back taper filter screen outside, with one deck filter cloth, is filled with three layers of different medium filtrate between upper and lower two-layer back taper filter screen interlayer; Three layers of different medium filtrate are by bottom purity quartzite filtrate, middle level granular activated carbon filtrate, and upper strata long fibre filtrate forms; Place of filter tank body bottom centre arranges sewage draining exit, and sewage draining exit is communicated with cylinder type filter net bottom, and filter tank body two bottom sides face is symmetrical arranged respectively backwash water inlet.
The utility model compared with prior art has the following advantages and beneficial effect: the back taper filter course that adopts three layers of different medium filtrate of double-deck back taper filter screen and Sandwich filling thereof to form, not only greatly increase filter area, and then the raising rate of filtration and contamination capacity, coordinate the injection water-out manners of the discoid Water outlet spray head of water-locator simultaneously, guarantee fully contacting of pending water and filter course, effectively remove colloid suspension and chlorine residue in water.Simultaneously, in utility model, lower floor's back taper filter course is welded with cylindrical screen pack, and cylinder type filter net outlet at bottom is communicated with sewage draining exit, in filter process, due to mobility and the Action of Gravity Field of water, hard particles dirt can enter in cylinder type filter net to be accumulated, and plays dirt crown_interception, thereby the filtrate that effectively prevents filter course hardens, facilitate periodic maintenance cleaning simultaneously.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
With reference to Fig. 1, the utility model comprises filter tank body 1, tank body feet 2, venthole 3, filtered water outlet 12, filter tank body 1 top arranges water inlet 4, water inlet 4 water inlet pipe middle part switching backwash delivery ports 16, water inlet 4 upper end exit surfaces are external screw thread, water inlet 4 lower ends arrange water-locator 5, water-locator 5 bodys adopt stainless steel tube to make, body bottom is connected with discoid Water outlet spray head 14 by internal thread securing member 13, and some regularly arranged circular apopores are set on the water outlet panel of discoid Water outlet spray head 14; Filter tank body 1 middle part is welded with upper and lower two-layer annular brace bar 6, on annular brace bar 6, symmetry is opened four holes respectively, utilize on annular brace bar 6 perforate and the locking nut upper and lower two-layer back taper filter screen 7 that is locked respectively, a cylinder type filter net 8 is welded in lower floor's back taper filter screen 7 bottoms; Upper and lower two-layer back taper filter screen 7 outsides, with one deck filter cloth 15, are filled with three layers of different medium filtrate 9 between upper and lower two-layer back taper filter screen 7 interlayers; Three layers of different medium filtrate 9 are by bottom purity quartzite filtrate, middle level granular activated carbon filtrate, and upper strata long fibre filtrate forms; Filter tank body 1 place of bottom centre arranges sewage draining exit 10, and sewage draining exit 10 is communicated with cylinder type filter net 8 bottoms, and filter tank body 1 two bottom sides face is symmetrical arranged respectively backwash water inlet 11.Sewage draining exit 10 diameters of filter tank body bottom are less than the pipe diameter of water inlet 4, prevent that the excessive filtrate that causes of backwash impulse force runs off.
Filter tank body 1, upper and lower two-layer back taper filter screen 7, cylinder type filter net 8, discoid Water outlet spray head 14 concentrics, and the bottom surface diameter of upper strata back taper filter screen 7 is identical with discoid Water outlet spray head 14 water outlet panel diameters, has guaranteed that water distribution is even.
When filtration operation, close sewage draining exit 10, backwash water inlet 11 and backwash delivery port 16, pending water is entered by water inlet 4, arrive upper strata stainless steel back taper filter screen 7 through water-locator 5 water distribution uniformities, the filter cloth 15 of making through nonwoven and upper strata stainless steel back taper filter screen 7 are held back after major diameter particle, and former water fully contacts in three layers of different medium filtrate 9, effectively removes colloid suspension and chlorine residue in water.Utilize the physical absorption ability that granular activated carbon is stronger, realize chlorine residue, colloidal particles, organic matter, colourity and the peculiar smell etc. removed in water.And because suspension and chlorine residue in former water, colloidal particles have destruction to all kinds of permeable membranes, wherein reverse osmosis membrane is very responsive to chlorine residue, chlorine residue in granular activated carbon adsorbed water, plays the effect of protection reverse osmosis membrane.Bottom purity quartzite filtrate is further tackled suspension in former water.The filter cloth 15 that the water filtering through three layers of different medium filtrate 9 is made through lower floor's stainless steel back taper filter screen 7, nonwoven and cylinder type filter net 8 fall into tank body 1 bottom precipitation after certain water level, discharge from filtered water outlet 12.
Wherein, upper and lower two-layer back taper filter screen 7 adopts respectively the stainless steel twill weave filter screen of braiding lines opposite direction to make, go up on back taper filter screen upper surface and lower floor's back taper filter screen lower surface and make layer of non-woven fabric filter cloth 15 simultaneously, further improve screen pack mesh density, not only prevent that filtrate runs off, and play the supplementary filtration of dirt second interception.Back taper filter course is due to mobility and the Action of Gravity Field of water, and particulate dirt enters cylinder type filter net 8 and accumulates.Cylinder type filter net 8 plays buffering crown_interception, effectively prevents that the filtrate of filter course from hardening, and has greatly improved filter efficiency, and cylinder type filter net 8 bottoms are communicated with sewage draining exit 10, facilitates periodic maintenance cleaning.
When backsurging operation, close venthole 3, water inlet 4 and filtered water outlet 12, first open sewage draining exit 10 and clean cylinder type filter net 8 and tank body 1 impurities at bottom.Before backsurging operation, backwash delivery port 16 is connected to blow-off line, blow-off line connects pollution discharge pond, then open backwash water inlet booster pump and be symmetrical arranged backwash water inlet 11 to the interior injection pressure water of tank body 1 by filter tank body 1 two bottom sides face simultaneously, in tank body, be filled with a certain amount of Compressed Gas by sewage draining exit 10 simultaneously, strengthen three layers of different medium filtrate 9 disturbance in filter course, and because filtrate voidage in back taper filtering layer structure is along filter height distribution gradient, filtrate is difficult for hardening, when backwash under certain backwashing pressure water and Compressed Gas effect time, be very easy to make the particle impurity held back in filter course loosening and along with press water is rinsed, reach the object that improves backwash cleannes and the water-saving that saves time.
Claims (4)
1. the former water pre-filtering device of multimedium, comprise filter tank body (1), tank body feet (2), venthole (3), filtered water outlet (12), it is characterized in that: filter tank body (1) top arranges water inlet (4), the switching of water inlet (4) water inlet pipe middle part has backwash delivery port (16), water inlet (4) upper end exit surface is external screw thread, water inlet (4) lower end arranges water-locator (5), water-locator (5) body adopts stainless steel tube to make, body bottom is connected with discoid Water outlet spray head (14) by internal thread securing member (13), some regularly arranged circular apopores are set on the water outlet panel of discoid Water outlet spray head (14), described filter tank body (1) middle part is welded with upper and lower two-layer annular brace bar (6), on annular brace bar (6), symmetry is opened four holes respectively, utilize the upper perforate of annular brace bar (6) and the locking nut upper and lower two-layer back taper filter screen (7) that is locked respectively, a cylinder type filter net (8) is welded in lower floor's back taper filter screen (7) bottom, described upper and lower two-layer back taper filter screen (7) outside, with one deck filter cloth (15), is filled with three layers of different medium filtrate (9) between upper and lower two-layer back taper filter screen (7) interlayer, three layers of different medium filtrate (9) are by bottom purity quartzite filtrate, middle level granular activated carbon filtrate, and upper strata long fibre filtrate forms, described place of filter tank body (1) bottom centre arranges sewage draining exit (10), and sewage draining exit (10) is communicated with cylinder type filter net (8) bottom, and filter tank body (1) two bottom sides face is symmetrical arranged respectively backwash water inlet (11).
2. the former water pre-filtering device of a kind of multimedium according to claim 1, it is characterized in that: described filter tank body (1), upper and lower two-layer back taper filter screen (7), cylinder type filter net (8), discoid Water outlet spray head (14) concentric, and the bottom surface diameter of upper strata back taper filter screen (7) is identical with discoid Water outlet spray head (14) water outlet panel diameter.
3. the former water pre-filtering device of a kind of multimedium according to claim 1, is characterized in that: described upper and lower two-layer back taper filter screen (7) adopts respectively the stainless steel twill weave filter screen of braiding lines opposite direction to make.
4. the former water pre-filtering device of a kind of multimedium according to claim 1, is characterized in that: sewage draining exit (10) diameter of described filter tank base is less than the pipe diameter of water inlet (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757878.0U CN203724872U (en) | 2013-11-27 | 2013-11-27 | Multi-media raw water pre-filtration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757878.0U CN203724872U (en) | 2013-11-27 | 2013-11-27 | Multi-media raw water pre-filtration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203724872U true CN203724872U (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320757878.0U Expired - Fee Related CN203724872U (en) | 2013-11-27 | 2013-11-27 | Multi-media raw water pre-filtration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203724872U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104961253A (en) * | 2015-06-11 | 2015-10-07 | 陈旭军 | Novel filter water device |
| CN108911347A (en) * | 2018-09-25 | 2018-11-30 | 大连翼方科技有限公司 | A kind of novel drinking water purification device and method |
| CN110665287A (en) * | 2019-11-07 | 2020-01-10 | 河北农业大学 | A filter equipment for liquid manure integration irrigation equipment |
-
2013
- 2013-11-27 CN CN201320757878.0U patent/CN203724872U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104961253A (en) * | 2015-06-11 | 2015-10-07 | 陈旭军 | Novel filter water device |
| CN108911347A (en) * | 2018-09-25 | 2018-11-30 | 大连翼方科技有限公司 | A kind of novel drinking water purification device and method |
| CN110665287A (en) * | 2019-11-07 | 2020-01-10 | 河北农业大学 | A filter equipment for liquid manure integration irrigation equipment |
| CN110665287B (en) * | 2019-11-07 | 2024-04-19 | 河北农业大学 | Filtering device for water and fertilizer integrated irrigation equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20151127 |