CN104606934A - Unpowered self-cleaning rainwater filtering method - Google Patents
Unpowered self-cleaning rainwater filtering method Download PDFInfo
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- CN104606934A CN104606934A CN201510028282.0A CN201510028282A CN104606934A CN 104606934 A CN104606934 A CN 104606934A CN 201510028282 A CN201510028282 A CN 201510028282A CN 104606934 A CN104606934 A CN 104606934A
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- rainwater
- circular arc
- housing
- screen pack
- filtering device
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Abstract
The invention provides a self-cleaning method capable of utilizing a rainwater filter in a rainwater collecting system. The method is characterized in that a spinning water flow is formed in a filtering chamber by the aid of change of the water flow direction, and self-cleaning is performed on a vertically-placed filter net. The method has the benefits as follows: self-cleaning is performed on the filter net by the aid of power produced under the rainwater flowing effect; a swirling flow mode is formed during rainwater filtration, so that multi-stage filtration of gravel, impurities and the like is facilitated; particulate matters with diameters larger than 2 mm can be removed, so that the rainwater cleanliness of the rainwater collecting system is effectively guaranteed.
Description
Technical field
Patent of the present invention relates to rainwater recycle and utilizes technical field, particularly relates to a kind of method of unpowered auto purification type dmp filter.
Background technology
It is comparatively extensive that Rainwater collection system studies use at home and abroad.When carrying out Collection utilization to rainwater, primary work is filtered collected rainwater, removes the foreign material such as leaf, sandstone mixed in rainwater, so that the later stage carries out the processing procedure such as purifying to rainwater.
Rainwater filtering device conventional at present mainly utilizes plastic grid etc. to filter foreign material in rainwater, and need periodic cleaning rainwater filtering device to ensure its filter effect, some problem below main existence: the first, filtrate accumulation for a long time can cause graticule mesh to block thus reduce rain penetration ability; The second, pile up organic principle in foreign material and easily corruption occur, thus cause stench to distribute, the later stage collect water and rivers water body contaminated; 3rd, filter insufficient when causing recycle-water again to utilize needs through repeatedly depositing technology; 4th, graticule mesh place piles up a large amount of foreign material and causes cleaning inconvenience; 5th, conventional filter adopts upper entering and lower leaving pattern usually, adds that waste discharge material mouth defines conventional filter be only applicable to rainwater soil surface treatment in bottom.
Summary of the invention
The problem that patent of the present invention will solve is: the method providing a kind of utilization unpowered auto purification type dmp filter in rain water collecting system.
The technical scheme of patent of the present invention is as follows:
A kind of method of auto purification type dmp filter, comprise cylindrical housings, described housing upper is provided with rainwater water inlet pipe, described lower housing portion water inlet pipe is oppositely provided with water purification outlet, circular arc screen pack is provided with in described housing, described circular arc screen pack and housing are that crossing circle is arranged, space in circular arc screen pack arc crossing with housing forms dmp filter room, space outside circular arc screen pack arc and between housing forms water purification discharge chamber, described lower housing portion is provided with foreign material outlet, and described foreign material outlet is connected with siphon-type blow-off pipe.
Further, described auto purification type rain water filtering device shell and rainwater water inlet pipe, storm drain, foreign material discharge pipe are recuperability plastics.
Further, described screen cloth is 2mm thickness stainless steel.
Further, described mesh structure is the two parts connected up and down; Top is divided into circular arc, and the latter half is crescent.
Further, described screen cloth up-down structure evenly gathers the sieve aperture of 2mm diameter.
Further, described water inlet and screen cloth upper part structure angle are less than 90 °, thus ensure that rainwater is unpowered from convolution.
Further, described foreign material discharge pipe is hydrocone type structure, upper along height higher than storm outfall sewer, lower than rainwater water inlet.
The beneficial effect of patent of the present invention is: patent of the present invention is owing to adopting technique scheme, solve the incomplete problem of initial filter in rain water collecting system in the past, remove thing minimum diameter and can reach 2mm, ensure that the clean level of collected rainwater, be conducive to later-stage utilization; And make, in dmp filter process, flux occurs because screen pack changes rainwater flow direction, self-cleaning can be carried out to screen pack, maintain easily.
Accompanying drawing explanation
Fig. 1 is patent schematic diagram of the present invention, and wherein Fig. 1 is fluid trend graph.
Detailed description of the invention
Brief description is made below in conjunction with the detailed description of the invention of accompanying drawing to patent of the present invention.
1. as shown in Figure 1, a kind of device that can carry out preliminary filtration to rainwater, it is characterized in that: this device comprises cylindrical housings, described housing upper is provided with rainwater water inlet pipe, described lower housing portion is oppositely provided with water purification outlet at water inlet pipe, circular arc screen pack is provided with in described housing, described circular arc screen pack and housing are that crossing circle is arranged, space in circular arc screen pack arc crossing with housing forms dmp filter room, space outside circular arc screen pack arc and between housing forms water purification discharge chamber, described lower housing portion is provided with foreign material outlet, described foreign material outlet is connected with siphon-type blow-off pipe.
2. auto purification type rain water filtering device described in, is characterized in that: described screen cloth top is circular arc stainless steel, thickness 2mm, and bottom is crescent stainless steel; Mesh opening size is 2mm.
3. auto purification type rain water filtering device according to claim 1, it is characterized in that: described screen cloth top is circular arc, crossing circle structure is formed with housing, space in described circular arc screen pack arc crossing with housing forms dmp filter room, and the space outside described circular arc screen pack arc and between housing forms water purification discharge chamber.
4. auto purification type rain water filtering device described in, is characterized in that: described rainwater water inlet pipe is positioned at housing upper, and between described screen cloth, angle is acute angle.
5. auto purification type rain water filtering device described in, is characterized in that: the shell body bottom outside screen cloth arc described in described rainwater delivery port.
Its installation comprises the following steps:
1. rainwater water inlet pipe is connected into rainwater water inlet, rainwater drainage pipe is connected into storm outfall sewer;
2. be connected with foreign material discharge pipe by foreign material outlet, foreign material discharge pipe is hydrocone type structure;
3. foreign material discharge pipe connects blow-off line;
4., after rainwater enters auto purification type rain water filtering device by rainwater water inlet pipe, after the indoor current of dmp filter run into curved screen, change flow direction, in dmp filter chamber, form current rotation, realize screen cloth self-cleaning;
5. when the water yield reaches along time highly on foreign material discharge pipe, dmp filter is that interior rainwater enters in blow-off line through foreign material discharge pipe, plays rain dirt and is separated and shunting action.
Beneficial effect is: utilize rainwater gravity flow effect to produce power and carry out self-cleaning to screen cloth; Form flux pattern in dmp filter process and be convenient to the multistage filtering such as sandstone, foreign material; The above sized particles thing of diameter 2mm can be removed, thus effectively ensure that the rainwater cleanliness factor of rain water collecting system.
Above patent of the present invention has been described in detail, but described content being only the preferred embodiment of patent of the present invention, the practical range for limiting patent of the present invention can not being considered to.All equalization changes done according to patent claim of the present invention with improve, within the patent covering scope that still all should belong to patent of the present invention.
Claims (5)
1. one kind can realize the self-cleaning method of the rain water filtering device in rain water collecting system, it is characterized in that: comprise cylindrical housings, described housing upper is provided with rainwater water inlet pipe, described lower housing portion water inlet pipe is oppositely provided with water purification outlet, circular arc screen pack is provided with in described housing, described circular arc screen pack and housing are that crossing circle is arranged, space in circular arc screen pack arc crossing with housing forms dmp filter room, space outside circular arc screen pack arc and between housing forms water purification discharge chamber, described lower housing portion is provided with foreign material outlet, described foreign material outlet is connected with siphon-type blow-off pipe.
2. auto purification type rain water filtering device according to claim 1, it is characterized in that: described screen cloth top is circular arc stainless steel, bottom is crescent stainless steel; Mesh opening size is 2mm.
3. auto purification type rain water filtering device according to claim 1, it is characterized in that: described screen cloth top is circular arc, crossing circle structure is formed with housing, space in described circular arc screen pack arc crossing with housing forms dmp filter room, and the space outside described circular arc screen pack arc and between housing forms water purification discharge chamber.
4. auto purification type rain water filtering device according to claim 1, is characterized in that: described rainwater water inlet pipe is positioned at housing upper, and between described screen cloth, angle is acute angle.
5. auto purification type rain water filtering device according to claim 1, is characterized in that: the shell body bottom outside screen cloth arc described in described rainwater delivery port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028282.0A CN104606934A (en) | 2015-01-21 | 2015-01-21 | Unpowered self-cleaning rainwater filtering method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510028282.0A CN104606934A (en) | 2015-01-21 | 2015-01-21 | Unpowered self-cleaning rainwater filtering method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104606934A true CN104606934A (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510028282.0A Pending CN104606934A (en) | 2015-01-21 | 2015-01-21 | Unpowered self-cleaning rainwater filtering method |
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| CN (1) | CN104606934A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267972A (en) * | 2016-10-10 | 2017-01-04 | 无锡大功机械制造有限公司 | A kind of arc filter board type sewage-treatment plant |
| CN106267975A (en) * | 2016-10-10 | 2017-01-04 | 无锡大功机械制造有限公司 | A kind of high-efficiency vibration filtering formula sludge treatment equipment |
| CN107930221A (en) * | 2017-12-22 | 2018-04-20 | 江苏鼎高环境科技有限公司 | A kind of unpowered initial rainwater filtration apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0781584A1 (en) * | 1995-12-27 | 1997-07-02 | FARE' S.p.A. | Self-cleaning filtering unit, filtering system including this unit and filtering method carried out by the filtering system |
| CN202289640U (en) * | 2011-09-02 | 2012-07-04 | 濮阳市濮中化工有限公司 | Novel filter |
| CN203253233U (en) * | 2013-05-07 | 2013-10-30 | 华南理工大学 | Ceramic water filter with self-cleaning function |
-
2015
- 2015-01-21 CN CN201510028282.0A patent/CN104606934A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0781584A1 (en) * | 1995-12-27 | 1997-07-02 | FARE' S.p.A. | Self-cleaning filtering unit, filtering system including this unit and filtering method carried out by the filtering system |
| CN202289640U (en) * | 2011-09-02 | 2012-07-04 | 濮阳市濮中化工有限公司 | Novel filter |
| CN203253233U (en) * | 2013-05-07 | 2013-10-30 | 华南理工大学 | Ceramic water filter with self-cleaning function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267972A (en) * | 2016-10-10 | 2017-01-04 | 无锡大功机械制造有限公司 | A kind of arc filter board type sewage-treatment plant |
| CN106267975A (en) * | 2016-10-10 | 2017-01-04 | 无锡大功机械制造有限公司 | A kind of high-efficiency vibration filtering formula sludge treatment equipment |
| CN107930221A (en) * | 2017-12-22 | 2018-04-20 | 江苏鼎高环境科技有限公司 | A kind of unpowered initial rainwater filtration apparatus |
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Application publication date: 20150513 |