CN105683447A - Filtering system for artificial recharge and cleaning method for filtering system for artificial recharge - Google Patents

Abstract

The present invention relates to a filtering system for artificial recharge and a cleaning method for the filtering system for artificial recharge and, more particularly, to a filtering system for artificial recharge and a cleaning method for the filtering system for artificial recharge wherein the filtering system for artificial recharge comprises cleaning parts for cleaning filtering parts for filtering artificially recharged groundwater, and thus is capable of preventing a filter from being clogged by fine soil, etc.

Description

Filtration system and cleaning method thereof for artificial recharge

Technical field

The present invention relates to a kind of filtration system for artificial recharge and the cleaning method of a kind of filtration system for artificial recharge, the cleaning method of especially a kind of filtration system for artificial recharge and a kind of filtration system for artificial recharge, wherein includes the cleaning parts cleaning the filter element for the subsoil water filtering artificial recharge for the filtration system of artificial recharge.

Background technology

At Jizhou Island, owing to being previously stored in the water level water level already above sea water of the subsoil water of underground 1980, spring water is from different local spilling along the coastline and flows out.

But, the source that not only spring water flows out at present is reduced because the water level sharply increasing the subsoil water caused due to Fast Urbanization phenomenon and water requirement reduces, and the crustal movement including earth's surface depression and sea water introducing etc. estimates that the water level of subsoil water can reduce further.

The main rock of Jizhou Island is porous basalt, and owing to the earth on ground is made up of frangible volcanic ash, therefore Jizhou Island has the structure that rainwater permeates the ground fully when rainfall. And, be equivalent to the whole soil of Jizhou Island 6% a part of soil be made up of Pueraria lobota letter watt (Gotjawal, Jizhou language), Pueraria lobota letter watt is the landforms of a kind of protuberance splitting into large and small block of rock produced by volcanic eruption lava out.

Pueraria lobota letter watt is a kind of tens meters of structures to the hole of hundreds of meters of below ground being formed and reaching down to store subsoil water from earth's surface, and its mesopore act as the accumulated snow preventing the warm air risen from causing and makes rainwater arrive the passage (airport) of underground when rainy.

Especially, Pueraria lobota letter watt is the forest zone protected as " world natural and cultural heritage site ", is also the landforms of the uniqueness that the whole world can only be seen at Jizhou Island.

Owing to the Chinese takes mountain itself to be exactly Jizhou Island, therefore the landforms of Jizhou Island itself are formed as the steep slope from white deer pool crater lake (BaengnokdamCraterLake) down to sea, and white deer pool crater lake is the volcanic crater that mountain taken in the Chinese.

Therefore, Jizhou Island has the geomorphological structure of the dam that can store substantial amounts of water within it cannot built. The streams being additionally, since Jizhou Island has precipitous slope, and when rainfall is a lot of or in rainy season, water logging does not have several hours but immediately enters in the sea. Therefore, only minimal amount of water permeates the ground.

Therefore, the streams of Jizhou Island is only that water logging does not have when rainy, the form of the non-irrigated small stream of usual then maintenance.

Having there is multifaceted effort goes artificial recharge to be entered rainwater in the sea by the streams of Jizhou Island, but whole house, the trees uprooped, rock, earth and the cobble etc. not only taken away by water during the heavy rain of local, and natant leaves and domestic refuse (agricultural vinyl etc.) are all blended in rainwater (earth water) and spread unchecked, therefore exist when water does not remove the problem that the corresponding region of foreign object immediately becomes cistern or wetland through artificial recharge.

Then, last resort, Jizhou Island is upright in a kind of method seeking water a small amount of from the little by little artificial recharge of different places.

Among diverse ways, a kind of method is to use from the rainwater of building roof or foundation structure collection to complete artificial recharge.

Scholarly forecast: to the year two thousand twenty Jizhou Island fulfil it as autonomous province functional time, rainwater is enable within it will more to be lacked by the place of natural erosion because increasing the construction (road, building) of generation due to population expansion and visitor, but because the extreme of water requirement increases and makes the level of ground water will dramatic drop-off owing to the entrance of quick surface subsidence and sea water causes Water Quality in Main Stream to start.

Additionally, along with the increase of water requirement, global warming is just making rainfall pattern show as Extreme drought and isolated storm.

Especially, for the individual example about infringement, " Chinese people's daily paper " was reported: to 2010, due to surface subsidence phenomenon, inner Chinese 50 or more city (including Beijing), when seriously being piled up, 300 times of your regions on island (Yeoido) have settled 116cm, be presently believed that utilize use rainwater-collecting facility or purification of waste water facility to guarantee to carry out the artificial ground water of recharge of groundwater by safe water to recharge facility be a solution.

In order to solve the problems referred to above, it is contemplated that be suitable for the public welfare of the method for the artificial recharge subsoil water of the geologic feature in Jizhou Island region, research expenditure and the mounting cost of current artificial recharge method are supported at Jizhou Island.

Therefore, with installing the target ading up to 42 manual inverted well in digging deeps before in December, 2003, although being constructed 6 places, place, recharge 400 every year, the subsoil water of 000m3, there is problems in that: due to the provincial characteristics (steep slope structure) of Jizhou Island, the hill-side do not polluted can not be arranged at Jizhou Island manual inverted well in digging deep, manual inverted well in digging deep is inevitably necessarily mounted near farmland, agricultural tillage is had in farmland, thus produce subsoil water by from farmland, agricultural chemicals that golf course and livestock and poultry farm bring and from animal raise and the problem that enters the contaminated wastewater of manual inverted well in digging deep, even if it is too little and be far from enough to supply fulminant growth on the horizon in the shortage of the springwater caused at the root problem owing to including surface subsidence that the method for the common manual inverted well in digging deep (underground conservation pool) that Jizhou Island currently advances there is also the water yield recharged.

Although in order to solve the problems referred to above, Jizhou Island is utilizing Pueraria lobota letter watt to explore artificial recharge in a different manner, but remains without the aquaporin and cistern sidewall that solve to build through remote Pueraria lobota letter watt structure to utilize Pueraria lobota letter watt and the problem that must separate rainwater and foreign object.

Especially, owing to suddenly taking away substantial amounts of domestic refuse, earth, husky and thousands of trees in the processes such as landslide, and the rainwater spread unchecked in isolated storm's process takes away whole house, and therefore after flooding for rainwater, landforms change sometimes. Such as, whole village is likely to disappear to substantial amounts of earth, sand and garbage.

Additionally, are there is the damage range bringing cruel result to the whole world because the excessively exploitation of Extreme drought and groundwater resources causes in some countries, including surface subsidence etc.

Therefore, in the process solving the problems referred to above, the applicant of the present invention has applied for the Korean registered patent that serial number is 10-0879600 of the structure separating rainwater and foreign object about the rainwater spread unchecked for artificial recharge.

In the Korean registered patent that serial number is 10-0879600, applicants have invented a kind of structure for filtering big foreign object (such as big trees and large-scale rock) and rainwater by streams from the water escaping into sea, separate rainwater and foreign object and subsequently only in the method for underground storage rainwater as using beam or network structure on a Water collection unit. But, it is likely to occur the problem caused by the leaves precipitated or discarded vinyl (they are to swim in the floating thing in water), namely, become the problem that the artificial Pueraria lobota letter watt of the position on water infiltration ground is blocked by foreign object, in order to solve the problems referred to above extraly, applicant has applied for the korean patent application that serial number is 10-1047112.

In the korean patent application that serial number is 10-1047112, in order to prevent artificial Pueraria lobota letter watt from being blocked by foreign object, one filter has now been set to supplement aforesaid invention, the domestic refuse of described separate with filter such as leaves and discarded vinyl, domestic refuse is the floating thing swimming in the 5mm or bigger in water. Therefore, described structure has been able to the infringement avoiding being caused by isolated storm, and can be used as resource by flood.

=supplemental content=

First, filter element, it is for filtering the big foreign object (trees etc. uprooped completely) comprised in rainwater

Second, filter element, it is contained in rainwater neutralization for bag filter and floats on floating thing (domestic refuse of bough and such as vinyl) waterborne

3rd, filter element, it is used for filtering earth, sand and cobble

4th, manual inverted well in digging deep (artificial Pueraria lobota letter watt)

The above-mentioned supplemental content applied for by applicant is struggle with registered in checking process. But, be used for when causing worldwide extensive damage in isolated storm's process ecological with open arms and artificially per second recharge in the method that thousands of bottle escapes into rainwater in the sea, the particulate earth etc. comprised in rainwater must be separated from rainwater, but this problem is still unresolved.

Therefore, applicant is directed in filtration system to solve the problem that filter is blocked by the tiny foreign object of such as earth.

Summary of the invention

Technical problem

The present invention is designed to solve above-mentioned problem, and relate to the cleaning method that a kind of filtration system for artificial recharge and a kind of filtration system for artificial recharge are provided, be wherein prevented from filter for the filtration system of artificial recharge and blocked by particulate earth etc.

Therefore, in order to realize above target, cleaning method for the filtration system of artificial recharge is not intended to filter the filtration system of common garbage, but for the special system just for artificial recharge, and the problems referred to above will solve when requiring the parts consideration that it can be used as a whole set of structure, because artificial recharge system all can not be run itself when saving any one filtration system.

Technical scheme

In order to realize above-mentioned target, include for the filtration system of artificial recharge according to the one of the present invention: for filtering the filter element of the subsoil water of artificial recharge and for cleaning the cleaning parts of filter element.

In above-mentioned configuration, clean parts and can include for making water flow filter element backward to clean the first cleaning parts of filter element, filter element can include filter and Rose Box, filter is flexible and is made up of the material with the through hole that water can pass through, Rose Box inserts filter and there is outlet formed therein and entrance, first cleans parts can include return duct, check-valves, arm, piston and the first ball, return duct is connected to entrance, check-valves allows water to flow entrance backward, stop water flow forward simultaneously, arm may be mounted at return duct place, piston may be mounted at arm place, the first ball for opening and closing outlet may be mounted at the coupling part of piston, and cleaning parts can include being arranged on filter element in order to clean the second cleaning parts of filter element.

In order to realize above-mentioned target, according to the present invention one includes for the cleaning method of the filtration system of artificial recharge: the first step, make water flow the filter element of the subsoil water for filtering artificial recharge and second step backward, clean filter element being positioned at the top on filter element.

Beneficial effect

According to the above-mentioned present invention one is used for the filtration system of artificial recharge and the cleaning method of a filtration system being used for artificial recharge, has the effect that

Including the cleaning parts of the filter element for cleaning the subsoil water filtering artificial recharge, accordingly it is possible to prevent the blocking of the filter caused by particulate earth etc., thus prevent filter element blocked.

Clean parts to include cleaning parts with cleans filter element first for making water flow filter element backward, therefore, it can effectively to make the foreign object in the through hole of filter element to come out to outside without being introduced into the water after filtration.

Filter element can include filter, Rose Box, resettlement groove and bracket, filter is flexible and is made up of the material with the through hole that water can pass through, Rose Box inserts filter and there is outlet formed therein and entrance, Rose Box is placed on resettlement groove, bracket has the through hole being formed as being connected with resettlement groove, therefore, it can keep the profile of filter by simple Stability Analysis of Structures.

First cleans parts includes return duct and the second ball, return duct is connected to entrance, second ball is used for opening and closing entrance, wherein piston bush is arranged on return duct place, piston is arranged on piston bush place, the first ball for opening and closing outlet is arranged on piston place, connecting rod is arranged at the second ball place, and connecting rod is rotatably installed in Rose Box place, therefore, when not performing to clean, water can pass through via filter and discharge via outlet, and when performing to clean by simple structure, entrance can be opened and water can flow with cleaned filter effectively backward via return duct, simultaneously, can fully automatically close outlet, to prevent water from discharging via outlet.

One cleaning method for the filtration system of artificial recharge includes: the first step, water is made to flow the filter element of the subsoil water for filtering artificial recharge backward, and second step, filter element is cleaned from the top of filter element, therefore, when injecting water into filter backward, the foreign object blocked in through hole is discharged to outside, and washes, by the water under high pressure sprayed on the filter, the foreign object being discharged off.

Accompanying drawing explanation

Fig. 1 is the axonometric chart of the filtration system for artificial recharge preferred embodiment of according to the present invention.

Fig. 2 is the zoomed-in view of the first filter element in Fig. 1.

Fig. 3 is the running status view of the first filter element in Fig. 2.

Fig. 4 is the zoomed-in view of the second filter element in Fig. 1.

Fig. 5 is the exploded perspective view of the second filter element in Fig. 1.

Fig. 6 is the viewgraph of cross-section intercepted of the line A-A along Fig. 5.

Fig. 7 is the decomposition zoomed-in view of a part for the first filter of the second filter element.

Fig. 8 is the side sectional view that the sidewall that catchments in the inner installed by the second filter of the second filter element.

Fig. 9 shows the Status view of the current of the second filter interior at the second filter element.

Figure 10 shows the Status view of current when the sluice of the second filter of the second filter element is opened.

Figure 11 shows the axonometric chart of the current of the filtration system for artificial recharge according to the preferred embodiment of the present invention.

Figure 12 is the decomposition zoomed-in view of a part for the first filter of the 3rd filter element in Fig. 1.

Figure 13 shows the partial enlarged view of the first filter of the 3rd filter element cleaned in Fig. 1.

Figure 14 shows the cross section of the 3rd filter element in Figure 11 and the axonometric chart of current.

Figure 15 is the side viewgraph of cross-section of Figure 14.

Figure 16 is the exploded perspective view (have been omitted from the first cleaning parts and second and clean parts) of the 4th filter element in Fig. 1.

Figure 17 is the partial enlarged view of the state that the filter of the 4th filter element in figure 16 separates with support with Rose Box.

The partial enlarged view of the state that Figure 18 shows the filter of the 4th filter element in figure 16 and Rose Box is connected with support.

Figure 19 shows the first cleaning parts and second and cleans the axonometric chart of the state that parts are arranged in the 4th filter element of Figure 16.

Figure 20 shows the front view that the 4th filter element in Figure 19 performs the state of filtering function.

Figure 21 shows the front view of the state of the 4th filter element cleaned in parts and second cleaning element purge Figure 19 by first.

Figure 22 is the horizontal cross-sectional view of the artificial recharge water drainage part 300a according to the preferred embodiment of the present invention, 300b and 300c.

Figure 23 shows the axonometric chart of a part for the artificial recharge water drainage part according to the preferred embodiment of the present invention.

Figure 24 is the zoomed-in view of the second earth in Fig. 1 and floating thing collecting part.

Figure 25 is the husky zoomed-in view with cobble collecting part of first in Fig. 1.

Detailed description of the invention

The present invention will be described in detail by referring to the drawings preferred embodiment hereinafter.

For referencely, in the structure of the present invention being described below, structure same as the prior art is by prior art above-mentioned for reference, and it is described in detail by omission individually.

In the present embodiment, filter element will be referred to as the 4th filter element.

As shown in Fig. 1 to Figure 21, the filtration system for artificial recharge of present embodiment includes: for filtering the 4th filter element 400 of the subsoil water of artificial recharge and for cleaning the cleaning parts of the 4th filter element 400.

The filtration system for artificial recharge of present embodiment also includes the main filter element 100 being positioned at front end.

Main filter element 100 is connected in river or streams, or is mounted obliquely within the ground of pond area, low ground and reservoir.

Such as, main filter element 100 may be mounted at the downstream of dam to prevent flood, it is possible to is arranged on the upstream of dam to remove the big foreign object in the reservoir being introduced into dam, and can control the water yield being introduced into dam in advance to control the water level of dam.

Main filter element 100 includes: the first filter element 110, and it is used for filtering large-scale rock; First filter 120a of the second filter element 120, the second filter element 120 is arranged on the bottom of the first filter element 110, in order to filter big foreign object with great amount; Second filter 120b, it is arranged on the bottom of the first filter 120a, to cross filter sand and cobble; 3rd filter element 140, it swims in floating thing waterborne for filtering; And artificial recharge water drainage part 300a and 300b, the water of the 4th filter element 400 that they are described below for artificial recharge traverse.

First filter element 110 is used for filtering large-scale rock etc., for instance 50cm or bigger, they are included in the water introduced from streams.

The first filter element 110 for filtering large-scale rock has multiple cylindrical projection 111, and cylindrical projection 111 is formed on the ground of water channel with the interval of about 50cm. Multiple protuberances 111 are set to " ^ " shape, so that the center portion thereof divides the updrift side towards streams.

Foreign object collection space portion 112 is formed in the both sides of protuberance 111, in order to assemble the large-scale rock of 50cm or bigger.

Foreign object collection space portion 112 is formed as being connected with water channel.

When water passes through water channel via the first filter element 110, the large-scale rock of 50cm or bigger is by being caught by protuberance 111 and filtered, and jammed large-scale rock etc. is introduced into foreign object collection space portion 112 naturally owing to being set to the protuberance 111 of " ^ " shape. Due to this point, attendant can be readily removable filtered large-scale rock etc., it is possible to prevent the damage of other structure for being arranged on downstream, and, the rock less than 50cm is gathered in streams successive watercourse 150 place on the left side being arranged on main filter element 100 via protuberance 111 and tap 124.

Second filter element 120 includes the first filter 120a and the second filter 120b, is fallen on the second filter 120b by the water of the first filter 120a.

First filter 120a is set to have the width close with streams. First filter 120a delivers to the second filter 120b for the rainwater of the small size cobble by including husky and 5cm or less, and the first filter 120a is served only for filtering large-scale foreign object, domestic waste article that large-scale foreign object includes 5cm or bigger and the trees etc. fully uprooped, and there is big volume.

First filter 120a is arranged on the top of the second filter 120b, more securely to be supported.

Wall 121 of leading for forming water channel is arranged on the both sides of the first filter 120a.

First filter 120a has the leaf filter 122 being arranged on its both sides, leading between wall 121.

Diameter is formed at leaf filter 122 place close to the tap of 5cm, and water can pass through tap.

Additionally, forming the tap at leaf filter 122 place is that taper is so that it becomes larger downwards. That is, the tap formed in the bottom of leaf filter 122 can be formed as having the diameter more than 5cm. Therefore, foreign object, the cobble being such as concomitantly introduced into water and sand, it is possible to by tap without being captured.

Leaf filter 122 could be arranged to plate shape, and could be arranged to the thick concrete flat slab of 15cm.

Leaf filter 122 could be arranged to be divided into several fritters, and several the leaf filter 122 being divided into is fixedly supported by board-like support beam 123.

Board-like support beam 123 is formed as framework to surround the outer rim of leaf filter 122, and has the resettlement groove making leaf filter 122 dispose in the inner, and resettlement groove is formed at upper surface so that the position of leaf filter 122 can firmly be fixed.

Ibid, leaf filter 122 could be arranged to several blocks separately, and when leaf filter 122 is damaged, only impaired part needs to be replaced, thus has the advantage reducing maintenance and repair cost.

Tap 124 for large-scale foreign object is formed in the bottom of the first filter 120a.

Discharged by the tap 124 for large-scale foreign object via the first filter 120a large-scale foreign object filtered.

Formed at the first filter 120a place additionally, lead wall 125, so that large-scale foreign object is effectively moved to the tap 124 for large-scale foreign object.

It is connected with the left side of following streams successive watercourse 150 for the tap 124 of large-scale foreign object.

Therefore, large-scale foreign object is discharged by the tap 124 for large-scale foreign object, and is gathered in the left side of streams successive watercourse 150, and when large-scale foreign object is not removed by attendant, large-scale foreign object goes downstream together with water. By this way, the accumulation in the first filter 120a of the large-scale foreign object it is effectively prevented. Therefore, it can perform constantly artificial recharge.

Being formed at the second filter 120b place with the water channel of water leg form, water channel is wider than the width in streams three times.

Second filter 120b has the top being formed as unlimited, so that falling the second filter 120b immediately by the sand comprising less than 5cm of the first filter 120a and the muddy water of cobble, so that it is introduced into the second filter 120b.

Second filter 120b includes the first partition wall 131 and the second partition wall 132, and the first partition wall 131 is installed as the surface separation with water channel, and the second partition wall is arranged on the bottom of the first partition wall 131 and has the height lower than the first partition wall 131. First partition wall 131 and the second partition wall 132 are set to multiple and paired, to form multiple space at the second filter 120b. In this embodiment, it is possible to form 6 spaces.

Falling the first space segment already by the most sand of the first filter 120a, cobble and muddy water, and form horizontal plane due to the flow of water, muddy water sequentially flows to the 6th space segment from the first space segment. Namely, the cobble of 5cm or less, sand and foreign object are blended in the first partition wall 131 and the second partition wall 132 that interior muddy water passes sequentially through at the first space segment and go to the 6th space segment, so that the cobble of heavy foreign object, sand and 5cm or less is precipitated and is transported to the first husky and cobble collection portion 200.

Owing to the height on ground is gradually lowered to the first partition wall 131 direction, the ground of the second filter 120b is formed as inclination, so that the cobble being sunken to ground is assembled in the lower section of the first partition wall 131 effectively with husky.

Husky and cobble outlet 136 is formed at the side wall place of the second filter 120b, and to be effectively discharged out being sunken to the cobble on ground and sand, and each sand is set to corresponding with the position installing the first partition wall 131 with cobble outlet 136. Dump valve 133 is arranged on sand and cobble exports 136 places. Water-supply-pipe 137 is connected to each dump valve 133, makes the cobble of gathering be sent to first husky and cobble collection portion 200 via dump valve 133 with husky together with some muddy water due to hydraulic pressure.

Dump valve 133 may be used for the artificial recharge flow of the husky artificial recharge water drainage part 300c with cobble collection portion 200 of artificial recharge water drainage part 300a and 300b and first of remote control main filter element 100.

Water is through outlet 134 formation of its discharge on the top of the second partition wall 132 of the foot being arranged on the second filter 120b, and outlet 134 has the width that the width with streams is approximate.

Outlet 134 is used as to deliver to the water transport filtered by the second filter element 120 (the first filter 120a, the second filter 120b) water channel of the 3rd filter element 140.

At this, the trees fragment and the floating thing that swim in the 50mm in water or less are included in the muddy water being transported to the 3rd filter element 140 by the second filter element 120.

Additionally, sluice 135 is arranged on the second partition wall 132 place of the foot being arranged on the second filter 120b, so that sluice 135 is arranged on the sidepiece of outlet 134.Sluice 135 is formed as having the height lower than outlet 134, in order to when sluice 135 is opened, water is only discharged not via outlet 134 via sluice 135.

Sluice 135 refers to the flow controller that can open and close.

And, the second sluice 138 is arranged on the second partition wall 132, so that the second sluice 138 is arranged on the other side of outlet 134. Second sluice 138 is arranged on the top of the tap 124 for large-scale foreign object. Second sluice 138 is formed as little, to make it have the sectional area less than sluice 135.

Owing to large-scale foreign object can be accumulated at streams successive watercourse 150 via tap 124, and, when the big situation about fully being uprooped and collapse as a lot of trees when generation landslide etc. of the amount of large-scale foreign object, the discharge of foreign object is likely to not smooth, the second sluice 138 can be opened, made by the power because of flowing water large-scale foreign object go downstream the function of the discharge promoting foreign object so that it plays.

Streams successive watercourse 150 is formed as having the width that the width with the second filter 120b is similar to, and is positioned at the bottom of the second filter 120b. Second filter 120b is connected to the downstream part in streams by streams successive watercourse 150.

When sluice 135 is opened, it is introduced into the right side of streams successive watercourse 150 already by the water of the second filter 120b, so that it is discharged to the downstream part in streams.

Including from farmland, the waste water from animal husbandry of agricultural chemicals that brings such as golf course and livestock and poultry farm may be embodied in the water that the initial stage from streams diversion is introduced into, and the amount of the earth being mixed in rainwater due to landslide etc. is likely to too big and hardly possible is filtered by main filter element 100.

It that case, sluice 135 can be opened, to prevent contaminated water to be introduced into the 3rd filter element 140 via outlet 134.

3rd filter element 140 is formed as having the width that the width with streams is similar to, and for filtering the floating thing of the leaves of the 5mm being such as included in muddy water or bigger.

3rd filter element 140 includes first end 140a, the second end 140b and the three end 140c, first end 140a is arranged on topmost, the second end 140b is arranged on the bottom of first end 140a and to be formed as aspect ratio first end 140a low, and the 3rd end 140c is arranged on the bottom of the second end 140b and to be formed as aspect ratio the second end 140b low.

First end 140a, the second end 140b and the three end 140c include the first filter 141.

First filter 141 is set to plate shape, and the multiple through holes as osculum are formed within.

First filter 141 could be arranged to be divided into multiple, and could be arranged to thickness and be approximately the stainless steel material of 5mm.

Each end includes the beams of concrete 142 for supporting the first filter 141.

Beams of concrete 142 is formed as framework to surround the outer rim of the first filter 141, and the first filter 141 disposes resettlement groove in the inner to be formed at upper surface so that the position of the first filter 141 can firmly be fixed.

The floating thing filtered by the first filter 141 rests on the top of the first filter 141, without cleaning floating thing individually, and floating thing trying hard to recommend to streams by flowing water, and little by little accumulate in streams.

Different from aforesaid, the cleaning pump 620 of the first filter of the 3rd filter element and washer jet could be arranged to water to be made to be injected into the top of the first filter 141 every the predetermined time, so as the floating thing cleaned on the first filter 141 so that it is in streams.

Separate base plate 140g to be arranged on obliquely between the first filter 141 of the 3rd filter element 140 and artificial recharge water drainage part 300a and 300b.

First partition wall 1411 and the second partition wall 1412 are arranged on first filter 141 of first end 140a and the second end 140b and separate between base plate 140g, first partition wall 1411 is installed as with to separate base plate 140g spaced apart at a certain distance, and the second partition wall 1412 is arranged on the bottom of the first partition wall 1411 and has the height lower than the first partition wall 1411.

First partition wall 1411 and the second partition wall 1412 can be set to multiple by being formed a pair, and can form 4 spaces.

Owing to the through hole of about 5mm is formed at the first filter 141 place of the 3rd filter element 140, the first space segment of the 3rd filter element 140 is fallen with rainwater already by the muddy water of the foreign object of the most 5mm or less mixed with fine sand, cobble etc. and including of the first filter 141, and form horizontal plane due to the flow of water, muddy water sequentially flows to the 4th space segment from the first space segment. Namely, water in first space segment passes sequentially through the first partition wall 1411 and the second partition wall 1412 at the 4th space segment from the first space segment, thus the fine sand, the earth of precipitation and the foreign object that are filtered by the second filter 120b of the second filter element 120 are not yet collected, and it is conveyed to the second earth and floating thing collection portion 500.

As it has been described above, in the process of muddy water flowing, heavy fine sand and foreign object are sunken to ground.

Separate what base plate 140g was formed as tilting, to have the height being gradually lowered towards each first partition wall 1411 so that be sunken to the cobble on ground, fine sand, the earth of precipitation and foreign object and effectively assembled in the lower section of the first partition wall 1411.

Husky and foreign object goes out the interruption-forming side wall place at the 3rd filter element 140, and to be effectively discharged out being sunken to the foreign object on ground, and each sand is set to corresponding with the position installing the first partition wall 1411 with foreign object outlet. Dump valve 1413 is arranged on husky and foreign object exit. Second water-supply-pipe 483 is connected to each dump valve 1413 so that the precipitate assembled due to hydraulic pressure is transported the second husky and floating thing collection portion 500 via dump valve 1413 together with some muddy water.

Being gathered in last water collection space by the water of the first partition wall 1411 and the second partition wall 1412, last water collection space is arranged on the separation base plate 140g of the 3rd end 140c, and then water is discharged to the 4th filtration water channel 1410.

4th water filtration passage 1410 is arranged on the sidepiece of the 3rd end 140c.

The water on the top separating base plate 140g at the 3rd end 140c is fed to the 4th filter element 400 by the 4th filtration water channel 1410 for performing the 4th time to filter.

4th filter element 400 includes filter 430, Rose Box 440, resettlement groove and bracket 450, filter 430 is flexible and is made up of the material with the through hole that water can pass through, Rose Box 440 inserts filter 430 and there is outlet 443 formed in which and entrance 444, Rose Box 440 is placed on resettlement groove, and bracket 450 has the through hole 451 being formed as being connected with resettlement groove and outlet 443.

Bracket 450 is arranged on the top of the first water leg 484.

Filtering water channel 480, form the second water leg 481 of the first water leg 484 of the 4th filter element, foreign object collection space 482 and the 4th filter element, bracket 450 is arranged in the first water leg 484, foreign object collection space 482 forms every side of the both sides of the first water leg 484 at the 4th filter element, and the second water leg 481 is arranged on the sidepiece of foreign object collection space 482.

The top of the first water leg 484 of the 4th filter element is filtered water channel 1410 with the 4th and is connected.

The bottom of the second water leg 481 of the 4th filter element is connected with water drainage part water channel 420. The water of the second water leg 481 of the 4th filter element is transported to the bottom separating base plate 140g of the first end 140a and the second end 140b of the 3rd filter element 140 by water drainage part water channel 420, and is transported to artificial recharge water drainage part 300a.

Filter 430 is set to the material of such as sponge or fabric. Filter 430 has inclined-plane 431, and inclined-plane 431 is formed on top to have the sectional area upwards tapered into. And, that filter 430 is hollow and there is unlimited bottom, thus be formed as " ∩ " shape.

The shape of filter is unrestricted, and can will include the variously-shaped shape as filter of the shape etc. of the accumulation horizon of shape and the Caulis et Folium Oryzae being placed in the tile on roof.

Filter 430 is formed as the plate shape of tetragon, and inclined-plane 431 is formed on left side and right side so that the height of the core of its upper surface is the highest.

Rose Box 440 is formed as the shape with the chest on unlimited top, and for artificial recharge outlet 443 formation at the core of Rose Box 440. The sectional area of outlet 443 is formed as bigger than the sectional area of entrance 444 for refluxing in cleaning process.

Cylindrical ball-collecting rack 442 from the lower protrusion of Rose Box 440 with around outlet 443.

Rose Box 440 is formed by elastomeric material etc.

Via the 4th filter water channel 410 receive water when by filter 430 filtered, via outlet 443 discharge, the first water leg 484 will pass through the 4th filter element is moved to the second water leg 481, and by artificial recharge water drainage part 300a and 300b for the artificial recharge along water drainage part water channel 420.

Bracket 450 is formed and is formed the framework of the outer rim around Rose Box 440 by concrete material. That is, bracket 450 is formed as the shape of quadrilateral frame. And, Rose Box 440 forms the inwall place in the bottom of bracket 450 by its locked locking step 452.

Rose Box 440 disposes resettlement groove in the inner to be formed at bracket 450 place by locking step 452, and owing to bracket 450 is formed as the shape of framework, through hole 451 is formed as being connected with resettlement groove and outlet 443.

Bracket 450 is for being assembled together multiple Rose Boxes 440 and Rose Box 440 being arranged on other component place such as filtering water channel 480.

Additionally, the foreign object collection channel 453 for collecting the foreign object declined along inclined-plane 431 is formed at bracket 450 place.

Foreign object collection channel 453 can be formed as along the both sides being arranged on filter 430 with the direction of water flowing.

Due to filter 430 and foreign object collection channel 453, trees fragment, precipitation earth etc. after falling the surface of filter 430, fall the U-shaped foreign object collection channel 453 below filter 430.

Foreign object is collected at foreign object collection space 482 via foreign object collection channel 453, is then conveyed to the second earth and floating thing collection portion 500.

Additionally, be provided with the cleaning parts of filter 430 for cleaning the 4th filter element 400.

Clean parts and include the first cleaning parts 460 and the second cleaning parts 470, first cleans parts 460 is used for making water flow filter 430 backward with cleaned filter 430, second cleans parts 470 is arranged on the top of filter 430, with by ejecting water to filter 430 and cleaned filter 430.

First cleans parts 460 includes the first water conveyance conduit 468, return duct the 461, first valve 464 and the second ball 462, return duct 461 is connected to the first water conveyance conduit 468 and is connected to entrance 444, first valve 464 is used for opening and closing return duct 461, and the second ball 462 is used for opening and closing entrance 444.

First water conveyance conduit 468 carries water, so that water to be injected into the inside of filter 430 from water tank 474a.

First water conveyance conduit 468 is connected to entrance 444 by return duct 461, and the water of backflow enters through entrance 444.

Arm 465 is by being mounted from return duct 461 bifurcated, and piston 466 is arranged on the inside of arm 465.

The bifurcation of arm 465 bifurcated becomes piston bush 465a.

The first ball 467 for being opened and closed outlet 443 by the diameter connection member 466a less than piston 466 is arranged on piston 466 place.

Therefore, by piston 466, first ball 467 is lifted, to open and close outlet 443. When hydraulic pressure does not act on piston 466, the first ball 467 falls due to its gravity, and exports 443 closedowns.

Piston bush 465a rises along with piston 466 and opens and closes. Specifically, piston bush 465a opens and passes through to supply water so that when piston rises, water is introduced into return duct 461, and piston bush 465a is blocked by piston 466, to stop water to pass through in it so that when piston 466 falls, water can not be introduced into return duct 461.

Second ball 462 is used as check-valves, is used for making water flow entrance 444 backward, stops water flow forward simultaneously.

Connecting rod 463 is arranged on the second ball 462 place, and connecting rod 463 is rotatably installed in the top of base plate of Rose Box 440.

First valve 464 is arranged on the bottom (up) of piston bush 465a, for the water transport of the first water conveyance conduit 468 being delivered to return duct 461 and making piston 466 increase.

Second cleans parts 470 includes the second water conveyance conduit 471, (operating) water nozzle 473 and the second valve 472, and (operating) water nozzle 473 is connected to the second water conveyance conduit 471 and is arranged on the top of each filter 430, and the second valve 472 is used for opening and closing (operating) water nozzle 473.

Water is transported to the top of filter 430 by the second water conveyance conduit 471 from water tank 474a.

Following high-pressure hydraulic pump 469 and high-pressure hydraulic pump 474 above are respectively mounted on the first water conveyance conduit 468 and the second water conveyance conduit 471 place, to pass through high-pressure water delivery.

Because water under high pressure is constantly filled with the first water conveyance conduit 468 and the second water conveyance conduit 471, so the first water conveyance conduit 468 and the second water conveyance conduit 471 are under high pressure effect. Therefore, water under high pressure can always be ejected at the first valve 464 and the second valve 472 when opening.

(operating) water nozzle 473 could be arranged to be mapped to high pressure water jets the top of filter 430.

Furthermore, it is possible to be arranged to the control parts (not shown) of remote control the first valve 464 and the second valve 472.

Control parts and can adjust the time of the first valve 464 and the second valve 472, and make the first valve 464 and the second valve 472 alternately turn on and close.

The following is the cleaning method of the filter 430 of the 4th filter element 400.

Described method includes: the first step, makes water flow the filter 430 of the 4th filter element 400 of subsoil water for filtering artificial recharge and second step, the cleaned filter 430 from the top of filter 430 or top backward.

When the first valve 464 is opened by control parts, supply the water of the first water conveyance conduit 468 so that piston 466 rises.By this way, the piston 466 of lock of piston set 465a rises so that piston bush 465a is opened, in order to deliver water into return duct 461 and arm 465.

Piston 466 rises due to the hydraulic pressure of the water in arm 465 so that the first ball is inserted into ball-collecting rack 442 and blocks outlet 443.

Additionally, the water in return duct 464 is carried, so that the second ball 462 of block inlet ports 444 is picked up due to hydraulic pressure.

Therefore, water flowing (from bottom to top) in a reverse direction in filter 430. Thus, the foreign object of the such as fine earth of the through hole of blocking filter 430 is discharged to the top of filter 430.

Water is made to flow backward by opening the first valve 464 in the given time.

Secondly, when the second valve 472 controlled on top parts open time, the water of the second water conveyance conduit 471 sprays via (operating) water nozzle 473, and top is the upstream of filter 430 when the first valve 464 is opened. That is, in the way of operating the first valve 464 than operating Zao about 4 to 5 seconds of the second valve 472, the second valve 472 is operated, so that filter 430 expands.

Top from the cleaned filter 430 of water of (operating) water nozzle 473 injection. Thus, the foreign object on the top being discharged to filter 430 by the first step is rinsed, and is collected into foreign object collection channel 453, gathers foreign object collection space 482, is then conveyed to the second earth and floating thing collection portion 500.

Pass through said process, it is possible to effectively remove the foreign object in the through hole being bonded at filter 430.

When completing to clean, the first valve 464 and the second valve 472 are closed. When the first valve 464 cuts out, the first ball 467 declines due to its gravity so that outlet 443 is opened, and piston 466 falls so that return duct 461 is closed. Being additionally, since hydraulic pressure and also no longer act on the second ball 462, therefore the second ball 462 declines so that entrance 444 is blocked due to its gravity.

Make water flow backward (injection) method to filter 430 furthermore, it is possible to various methods are used as clean parts 460 by first, and the second cleaning parts 470 can also be made to eject water to filter 430 by various methods.

Therefore, filter 430 can perform filtering function again.

Artificial recharge water drainage part 300a is arranged on the bottom separating base plate 140g of first end 140a and the second end 140b, and artificial recharge water drainage part 300b is arranged on the bottom separating base plate 140g of the 3rd end 140c.

The artificial recharge water drainage part 300b of the artificial recharge water drainage part 300a being arranged on the bottom separating base plate 140g of first end 140a and the second end 140b and the bottom separating base plate 140g being arranged on the 3rd end 140c is separated by water drainage part partition wall 300f. Owing to small space parts are formed at water drainage part partition wall 300f and separate between base plate 140g, therefore it is transferred via spatial component without the water of artificial recharge in artificial recharge water drainage part 300a, and by artificial recharge in artificial recharge water drainage part 300b.

Artificial recharge water drainage part 300a and 300b includes the first pipe 310 and the second pipe 320, first pipe 310 is for artificial recharge subsoil water and has the formation multiple through holes 311 at outer circumference surface, and the second pipe 320 has the diameter less than the first pipe 310 and is arranged on the first pipe 310 inside and is connected with through hole 311.

First pipe 310 is set to the cylinder that its top is blocked. First pipe 310 could be arranged to the cylinder with 40cm diameter.

Multiple through holes 311 are formed in the top of the first pipe 310 and side.

Second pipe 320 is arranged on the inwall place of the first pipe 310.

Preferably, the second pipe 320 is only installed at the part that the first pipe 310 is embedded in ground G. That is, the second pipe 320 does not reside at the upper end of the first pipe 310, and the upper end of the first pipe 310 is an exposure to the part outside ground G.

The entrance 321 of the second pipe 320 is towards top, and exports the side towards pipe. Therefore, the lower end of the second pipe 320 is formed as bending.

Second pipe 320 is arranged so that entrance 321 is set to be positioned at 10cm or more on the through hole 311 being connected with the second pipe 320.

When the backflow of water is prevented from because water forms the trend of horizontal plane, water or soil outside the first pipe 310 can not pass through the first pipe 310 and flow into water-bearing layer, therefore, the second pipe 320 may be used for preventing the peripheral region of the mounted position of the pipeline of artificial recharge from caving in.

Air is arranged on the inside of the first pipe 310 when performing artificial recharge via its 3rd pipe 330 passed through. 3rd pipe 330 could be arranged to the cylinder with 50mm diameter less than the diameter of the first pipe 310.

3rd pipe 330 is arranged on the core of the first pipe 310.

The upper end of the 3rd pipe 330 is installed as and penetrates the first pipe 310.

Additionally, when artificial recharge water drainage part 300a, 300b and 300c are arranged in water leg, the 3rd pipe 330 can from the base plate projection of water leg, or be installed in ground G to prevent the upper end of the 3rd pipe 330 to be submerged under water.

The upper end of the 3rd pipe 330 has the top being bent into " n " shape.

The multiple air vents 331 being connected with the inside of the first pipe 310 are formed at the 3rd pipe 330 place.

Additionally, the 4th pipe 340 is arranged on the inside of the 3rd pipe 330, the 4th pipe 340 has the diameter less than the 3rd pipe 330, is arranged within the 3rd pipe 330 and is connected with air vent 331.

4th pipe 340 is formed as the shape identical with the second pipe 320, and it is formed as having the diameter less than the second pipe 320. Due to the 4th pipe 340, the rainwater permeated the ground via through hole 311 can not enter the 3rd pipe 330.

The 3rd pipe 330 can be passed through when needing air in the first pipe 310 and supply air, to avoid to produce vacuum and expansion when water falls via the first pipe 310.

It is arranged on the artificial recharge water drainage part 300a of first end 140a and the second end 140b artificial recharge water drainage part 300b being set to than being arranged on the 3rd end 140c short, with artificial recharge water until absorbed layer. It is arranged on the artificial recharge water drainage part 300b of the 3rd end 140c by water artificial recharge absorbed layer.

The advantage of short artificial recharge water drainage part 300a and 300c

By short artificial recharge water drainage part 300a and 300c, owing to manual inverted well in digging deep can be mounted to downwards unsaturation layer or accumulation layer, and seepage flow and the self-purging function of unsaturation layer can be utilized by rainwater is directed down onto water-bearing layer via unsaturation layer, water therefore can be made to carry out artificial recharge with completely naturally state.

The advantage of long artificial recharge water drainage part 300b

By directly whole the desired amount of water being directed down onto water-bearing layer via long artificial recharge water drainage part 300b; following function can be performed fully: prevent natural disaster in isolated storm's process, water conservation, prevent salinization and prevent surface subsidence, but can not as water can be made by artificial recharge water drainage part 300a to carry out artificial recharge with completely naturally state.

It is introduced into the downstream part in streams by adding streams successive watercourse 150 without some water of artificial recharge by the first end 140a of the 3rd filter element 140, the second end 140b and the three end 140c.

When main filter element 100 is arranged on streams, it is possible to protective layer is arranged on the top of the second filter 120b and the top of streams successive watercourse 150, and green belt can form the top at protective layer, to prevent main filter element 100 to be exposed to outside. Therefore, it can improve the outward appearance of the system of the present invention.

The assembling position 510 in the foreign object collection space 482 of the 4th filter element 400 and the second earth and floating thing collection portion 500 is connected with each other by the second water-supply-pipe 483. Therefore, the water in foreign object collection space 482 and foreign object (soil or floating thing) are discharged to assembling position 510. Assembling position 510 is set to have the area wider than foreign object collection space 482.

Second earth and floating thing collection portion 500 include assembling position 510, slope 520 and water collecting part 530, and assembling position 510 includes the base plate and the side wall that are formed so that opened upper end, and slope 520 is for promoting the movement collecting the device into assembling position 510.

Slope 520 is arranged on a corner portion of assembling position 510 obliquely.

Water collecting part 530 is provided with the partition wall being installed as inverted " L " shape in another corner portion of assembling position 510. Thus, form collecting space at water collecting part 530 place, and collecting space is connected with first row water outlet 540.

Cut opening on the top of water collecting part 530 and form outlet 531, in order to water is discharged to collecting space after collecting earth and floating thing.

The water comprising earth and floating thing being transported to the second water-supply-pipe 483 from foreign object collection space 482 gathers assembling position 510, after earth and floating thing are collected, water gathers water collecting part 530, more only it is collected but unprecipitated foreign object and muddy water are discharged via outlet 531, and water is directed to the downstream part in streams via first row water outlet 540.

Therefore, when without when removing respectively, the foreign object of the foreign object collection space 482 gathering the 4th filter element 400 is discharged to streams.

For being gathered in the water of the second filter 120b of the second filter element 120, only it is introduced into the first husky and cobble collection portion 200 than the sand of water and some rainwater weight and cobble via water-supply-pipe 137.

First sand and cobble collection portion 200 include arsenicbearing gold ores collection portion 210, filter element 230 and artificial recharge water drainage part 300c, the husky precipitation that arsenicbearing gold ores collection portion 210 is contained within for water, filter element 230 makes the water that the top being introduced into filter element 230 already by the water in arsenicbearing gold ores collection portion 210 is introduced into filtration, and artificial recharge water drainage part 300c is used for the artificial recharge water already by filter element 230.

The first husky and cobble collection portion 200 can be used individually by being installed in cistern ground without connected to main filter element 100; furthermore, it is possible to by the first sand and cobble collection portion 200 are arranged on the region of easy Flooding or do not have the island in streams or river to be efficiently used for preventing natural disaster and water conservation.

When using main filter element 100, by consider artificial recharge water drainage part 300a and the 300b of main filter element recharge capacity and first is husky and the artificial recharge water drainage part 300c in cobble collection portion 200 recharge capacity, arsenicbearing gold ores is collected the water-supply-pipe 137 that portion 210 is used for via being connected to the second filter 120b and introduces muddy water, cobble, sand and foreign object by adjustment total amount.

The position in arsenicbearing gold ores collection portion 210 can be the region, streams that vehicle can easily enter, so that the geologic survey and mineral research etc. of the upstream portion in streams, or so that collecting sand from precipitate, and, when installing individually, arsenicbearing gold ores collection portion 210 can be flexibly installed to such as the region of easily Flooding Anywhere.

Arsenicbearing gold ores collection portion 210 includes base plate and around the side wall of base plate, can precipitate spacious space in the inner forming sand.

Additionally, slope 212 is arranged on the side in arsenicbearing gold ores collection portion 210, in order to the entrance of vehicle.

Partition wall 211 is arranged on a corner in arsenicbearing gold ores collection portion 210.

Partition wall 211 has entrance 213, and the water in arsenicbearing gold ores collection portion 210 is introduced into via entrance 213, and entrance 213 is formed on top, so that rainwater is introduced into the top in arsenicbearing gold ores collection portion 210. Therefore, such as husky and cobble heavy foreign object is deposited in arsenicbearing gold ores collection portion 210, and the water only comprising other floating thing swum in water passes through partition wall 211.

Partition wall water collecting part 220 is set to separate with partition wall 211 in the inside of partition wall 211.

Water is introduced into partition wall water collecting part 220 via the entrance 221 formed in bottom, so that sand or cobble etc. are again filtered.

Partition wall water collecting part 220 can be saved as desired.

Filter element 230 makes the muddy water comprising the floating thing swum in the water already by arsenicbearing gold ores collection portion 210 be introduced in the top of filter element 230, to filter floating thing therein.

That is, it is arranged on the top of filter element 230 via its entrance 231 being introduced into already by the water of partition wall water collecting part 220.

In filter element 230, the first spatial component 230a, second space parts 230b and the three spatial component 230c are arranged along water (flow) direction.

First filter of component for collect sand identic with the first filter 141 of the 3rd filter element 140 of main filter element is arranged on the top of the first spatial component 230a, and the second filter of the identic component for collecting sand is arranged on the bottom of the first filter of the component for collecting sand with the filter 430 of the 4th filter element 400. Therefore, pass through for collect sand component the first filter and for collect sand component the second filter after, the water being introduced into the first spatial component 230a is used to artificial recharge by artificial recharge parts 300c.

Second space parts 230b is the place that the foreign object of the garbage including being included in the water of the first spatial component 230a is aggregated.

3rd spatial component 230c is the place that the foreign object of the garbage including being included in the water of second space parts 230b is aggregated.

Foreign object tap 202 is formed at the 3rd spatial component 230c place, and outlet 203 is connected to the 3rd spatial component 230c so that some muddy water and foreign object are discharged in streams. Thus, the foreign object being aggregated automatically can be discharged in streams via outlet 203.

Additionally, the foreign object tap 201 being connected to streams is also formed in second space parts 230b place, in order to be connected to outlet 203.

Therefore, the foreign object collected in native system is discharged to the downstream in streams when not being removed.

The artificial recharge water drainage part 300c being arranged on the first spatial component 230a injects water indirectly, with by water artificial recharge until absorbed layer.

Owing to artificial recharge water drainage part 300c is arranged in the way of identical with artificial recharge water drainage part 300a and 300b being arranged on main filter element 100, descriptions thereof therefore will be omitted.

By arsenicbearing gold ores collection portion 210 as set above, sedimentation thing may be used for industrial use, and be included in the foreign object in sedimentation thing and cobble simultaneously can as the mineralogy of downstream part, streams and geological research material, the water already by native system may be used for effective artificial recharge.

Will be described below the running with the present embodiment of above-mentioned configuration.

From water, the foreign object of the such as large volume of large-scale rock is removed by the first filter element 110.

Secondly, introduce the water into the first filter 120a of the second filter element 120, to cross the large-scale foreign object comprised in drainage, the domestic refuse of such as 5cm or bigger and the trees uprooped completely.

Filtered in the bottom of the first filter 120a by the water filtered by the first filter 120a of the second filter element 120 is introduced the second filter 120b.

When water is by the second filter 120b, from water, remove the earth etc. of husky, cobble and some precipitations.

Then, introduce the water into the 3rd filter element 140, to remove floating thing etc. there.

Via the 4th, the floating thing (trees fragment and garbage etc.) in the 5mm already by the 3rd filter element 140 and muddy water are filtered water channel 410 carry, to be supplied to the top of filter 430.

After water and floating thing are separated by filter 430, by water via outlet 443 discharge, so that water gathers the first water leg 484 of the 4th filter element and the second water leg 481 of the 4th filter element. The water being collected is fed to artificial recharge water drainage part 300a and 300b via water drainage part water channel 420. By this way, the water artificial recharge of artificial recharge water drainage part 300a and 300b will be fed to underground by artificial recharge water drainage part 300a and 300b.

Simultaneously, when being introduced into streams and inflow nautical mile when the floating thing less than 5mm separated in the 4th filter element 400 and foreign object, substantial amounts of floating thing and foreign object are along other unpolluted coastline zone-accumulation of Jizhou Island thus worsen its landforms, and substantial amounts of floating thing and foreign object are deposited in fishing ground, and fisherman causes great infringement.

But, in the present embodiment, second earth and floating thing collection portion 500 are set to: by the floating thing less than 5mm separated from the 4th filter element 400 and foreign object being transported to assembling position 510 from foreign object collection space 482 via the second water-supply-pipe 483, collect described floating thing and foreign object. Accordingly, because floating thing and foreign object less than 5mm are not introduced in the sea, solve above-mentioned problem.

As mentioned above; although preferred embodiment describing the present invention by reference to the present invention; in the scope without departing substantially from the protection scope of the present invention described in following claims and intention, the present invention can be modified and change by those skilled in the art in every way.

(description of accompanying drawing labelling)

100: main filter element, 110: the first filter elements

120a: the first filter, the 120b: the second filter

140: the three filter elements, 400: the four filter elements

Clean parts at 460: the first, and clean parts at 470: the second

500: the second earth and floating thing collection portion, 200: the first husky and cobble collection portions

300a, 300b, 300c: artificial recharge water drainage part.

Claims (6)

1., for a filtration system for artificial recharge, this filtration system includes:

Filter element, its subsoil water being configured to filter artificial recharge; And

Cleaning parts, it is configured to clean filter element.

2. filtration system as claimed in claim 1, wherein cleans parts and includes the first cleaning parts, and first cleans parts is configured to make water flow to filter element backward, to clean filter element.

3. filtration system as claimed in claim 2, this filtration system includes the second cleaning parts, and second cleans parts is configured to eject water to filter element, to clean filter element.

4. filtration system as claimed in claim 3, wherein filter element includes filter and Rose Box, and filter is formed by the material that can form the through hole that water can pass through, and inserts filter and have outlet formed in which and entrance in Rose Box.

5. filtration system as claimed in claim 4, wherein:

Filter is flexible; And

First cleans parts includes return duct and check-valves, and return duct is connected to entrance, and check valve configuration, for allowing water to flow entrance backward, stops water flow forward simultaneously.

6., for performing a cleaning method for the filtration system for artificial recharge of artificial recharge constantly, this cleaning method includes:

The first step, makes water flow the filter element of the subsoil water for filtering artificial recharge backward; And

Second step, cleans filter element on the top of filter element.