JP3544713B2 - Filtration equipment - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a filtration device for purifying water.
[0002]
[Prior art]
Conventionally, a golf course has been provided with a water storage tank to secure water for watering.
[0003]
This water tank stores rainwater and groundwater and is used for watering turf and the like. Therefore, considering the influence on the turf, the water is not preferable if the water contains heavy metals such as iron and manganese, and nitrogen and phosphorus (hereinafter referred to as impurities). Further, if such impurities are contained, there is also a problem that the impurities adhere to a water pipe or the like connected to the water storage tank and deteriorate the water pipe.
[0004]
Previously, simply allowed to stand predetermined time water accumulated in a savings aquarium, after precipitation of impurities, or removed the supernatant, also sand on the bottom of the b savings aquarium, water flow layer laid gravel etc. formed, remove impurities by passing the water passage layer, or remove the water from the lower side of the water passage layer, also, c suitable Yibin filter medium and a drug (e.g., for removing iron and manganese are ionized In addition, a large-scale purifying apparatus using chemical means using NaClO that oxidizes the iron ions or manganese ions is provided to purify water.
[0005]
[Problems to be solved by the invention]
However, the means of the upper Symbol a, again, in terms purifying water with a limit, since the fact that standing for a predetermined time is an absolute condition, there is a disadvantage of poor purification efficiency.
[0006]
Also, means of upper Symbol b, when repeated continuously used, there is a problem that water flow layer clogged with impurities. Particularly, depending on the soil properties of the area, iron powder or the like is often deposited and attached to the water-permeable layer, and the water-permeable function of the water-permeable layer is often hindered within a few days. Therefore, in this case, a new water-permeable layer must be formed again with new sand, gravel and the like, which is very troublesome.
[0007]
Also has a high cost disadvantage will be naturally means above Symbol c of.
[0008]
The present invention provides a filtration device that solves the above-mentioned disadvantages.
[0009]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0010]
A water guiding section 1 is provided at an upper portion of one side of a water storage tank 2 for storing water . At a bottom of the water storage tank 2, a water flow layer 4 is provided by laying appropriate members such as sand and gravel. penetration part or all parts of the layer 4 is of a conductive water unit 1 toward the other side of the water tank 2 are made form the inclined water passage layer 4 'to be inclined downward, and the water storage tank 2 to the water flow layer 4 A drain 5 is provided for discharging the permeated water to the outside of the water storage tank 2. Further, a secondary drain formed by an open / close valve hole 11 for collecting a supernatant portion in which impurities are precipitated is provided on the other upper side of the water storage tank 2. part 7 is provided, wherein a water collecting section 12 for collecting the waste water from the drainage unit 5, and a water collecting section 13 for collecting the waste water from the従排water portion 7 that you are allowed to communicate The present invention relates to a filtration device.
[0011]
Further, in the filtration equipment of 請 Motomeko 1, in which according to the filtration apparatus characterized in that laying passed through the mat 6 on the water flow layer 4.
[0012]
Further, in the filtration equipment of 請 Motomeko 1 according any one, the bottom position of the water collecting part 12 and the water collecting section 13, a filtration device, characterized that you are set to the same horizontal position It is related to.
[0013]
Further, in the filtration device according to any one of claims 1 to 3, according to the filtration apparatus and the water collecting part 12 and the water collecting section 13 is characterized by that you are provided outside of the water storage tank 2 Things.
[0014]
[Action]
The water from the water guide 1 flows down the inclined water layer 4 ′ of the water tank 2, permeates the water layer 4, is filtered, and is discharged from the water drain 5 to the outside of the water tank 2.
[0015]
At this time, the impurities deposited on the inclined water-permeable layer 4 'are washed down by the flow of the water on the inclined water-permeable layer 4', and the inclined water-permeable layer 4 'is not clogged.
[0016]
【Example】
The drawings illustrate one embodiment of the present invention and will be described below.
[0017]
The water storage tank 2 is formed of concrete or the like. A perforated pipe 8 (underdrain pipe) is laid at the bottom of the water storage tank, and water is discharged to the outside of the water storage tank 2 through the perforated pipe 8.
[0018]
Further, a water guide 1 is formed on one side of the water storage tank 2. Water containing impurities is introduced into the water guide section 1, and when the water level rises, water overflowing from the water guide section 1 flows into the water storage tank 2 (inclined water layer 4 ′).
[0019]
Reference numeral 9 denotes a water supply pipe, which is provided at the center of the water guide 1 in order to uniformly overflow the water guide 1.
[0020]
Crushed stones, gravel, and sand are laid in this order on the perforated pipe 8 from the bottom to form the water-permeable layer 4. The water-permeable layer 4 has an inclined water-permeable layer 4 ′ that is inclined upward to the right in FIGS. 1 and 2, leaving a horizontal flat water-permeable layer 4 ″ having a predetermined area on the left side in FIGS. Structure.
[0021]
A water-permeable mat 6 is laid on the water-permeable layer 4 to hold the crushed stones, gravel, sand and to trap impurities. 18 are laid, and further, appropriate holding members (wood board, iron plate, etc.) are laid to hold the rice straw 18.
[0022]
Further, two cylindrical bodies 10 and 10 'communicating with the outside of the water storage tank 2 are erected at the position of the flat water flow layer 4 ", and the upper part of the cylindrical bodies 10 and 10' is provided with a supernatant portion in the water storage tank 2. A valve hole 11 for taking water is formed.
[0023]
The valve hole 11 can be arbitrarily opened and closed with, for example, a solenoid valve or an electric valve. Specifically, the valve is configured to open after 30 minutes and close after 30 minutes after the water is guided from the water guide section 1 to the inclined water layer 4 ′. This is because 30 minutes after the introduction of water leads to considerable precipitation of impurities.
[0024]
A cylindrical water collecting part 12 for collecting the drainage from the drainage part 5 and a cylindrical water collecting part 13 for collecting the drainage from the secondary drainage part 7 are buried in the ground outside the water storage tank 2. The water collecting part 12 and the water collecting part 13 are communicated by the communication pipe 3, and the bottom parts of the water collecting part 12 and the water collecting part 13 are set at the same horizontal position. Water from the perforated pipe 8 is introduced into the water collecting part 12, and water from the valve holes 11 of the cylinders 10 and 10 ′ is introduced into the water collecting part 13. Then, the water collected in the water collecting section 13 is introduced into an appropriate storage section, for example, a pond or the like via the main drain pipe 17.
[0025]
Reference numeral 14 denotes a drain pipe for draining water in the water guide unit 1, and reference numeral 15 denotes an overflow pipe for an emergency when the water tank 2 becomes full and overflows, and collects water through the drain pipe 16. It is communicated with the unit 13.
[0026]
In order to oxidize and precipitate ionized impurities, an appropriate chemical such as NaClO may be added to the water tank 2.
[0027]
Since the present embodiment has the above-described configuration, for example, water from a pond storing rainwater or the like in the site of a golf course is introduced into the water storage tank 2 through the water introduction unit 1 in several times. That is, the water is introduced into the water conveyance unit 1, and the water introduced into the water conveyance unit 1 fills the water conveyance unit 1, overflows the water conveyance unit 1, and is conveyed to the inclined water passage layer 4 'on average, This water flows down the inclined water-permeable layer 4 '.
[0028]
Since water penetrates into the rice straw 18, the water flow mat 6, the water flow layer 4, impurities such as iron and manganese contained in the water are captured by the rice straw 18, the water flow mat 6, the water flow layer 4, The impurities accumulate on the rice straw 18, the water flow mat 6, and the water flow layer 4. Water that has passed through the rice straw 18, the water mat 6, and the water layer 4 is purified and discharged out of the water reservoir 2 through the perforated pipe 8.
[0029]
When the water flows down the inclined water-permeable layer 4 ', the water has a function of washing away the impurities accumulated on the rice straw 18, the water-permeable mat 6, and the inclined water-permeable layer 4', and removes the impurities from the flat water-permeable layer 4 ". As a result, the rice straw 18, the water-permeable mat 6, the inclined water-permeable layer 4 'is clogged by the accumulation of impurities, and the situation where the water-permeable function is hindered is suppressed as much as possible. Is particularly remarkable in the rice straw 18 as the outermost layer.
[0030]
When a predetermined amount of water is introduced into the water tank 2 several times a day, for example, and is repeatedly used, impurities are deposited on the flat water-permeable layer 4 ″ (including the rice straw 18 and the water-permeable mat 6) by the above-described washing action. However, the water flow function on the flat water flow layer 4 "may deteriorate.
[0031]
In such a case, if the valve holes 11 of the cylinders 10 and 10 ′ are set so as to open after a predetermined time after the introduction of water from the introduction section 1, the water tank 2 is opened after the predetermined time elapses. Impurities accumulate and the supernatant is discharged out of the water tank 2 through the valve hole 11, and the drainage through the valve hole 11 is performed simultaneously with the drainage through the perforated pipe 8. And become more efficient.
[0032]
When impurities accumulate in the flat water-permeable layer 4 ", it is also possible to replace the sand, gravel and the like, the rice straw 18, and the water-permeable mat 6 in the flat water-permeable layer 4". . In this case, unlike the above-described conventional method, replacement is performed in a small area portion and is not performed in the entire bottom portion of the water storage tank 2 in a wide area, so that workability is very good.
[0033]
In addition, rice straw 18 can be incinerated as it is when impurities are deposited, and there is no pollution problem when impurities contain heavy metals (in general, water containing heavy metals must be removed after the heavy metals are removed and discarded). Rather, the process is very cumbersome.)
[0034]
This embodiment also has the following features. This will be described with reference to FIG.
[0035]
A predetermined amount of water (specifically, about 17 tons of water) introduced into the water storage tank 2 from the water conveyance section 1 passes through the rice straw 18, the water flow mat 6, the water flow layer 4, and the perforated pipe 8 The water is introduced into the water collecting section 12 via The amount of water introduced into the water collecting part 12 through the perforated pipe 8 is small compared with the amount of water introduced from the water guiding part 1 to the water storage tank 2.
[0036]
The fact that a small amount of water is introduced into the water collecting section 12 through the perforated pipe 8 means that the water in the water storage tank 2 does not readily decrease, and this directly leads to poor filtration efficiency. Will be.
[0037]
However, in the case of the present embodiment, the amount of water introduced into the water collecting part 12 through the perforated pipe 8 is small at an initial stage (specifically, for 30 minutes until the valve hole 11 is opened).
[0038]
To be more specific about this point, initially, water is not introduced into the water collecting part 13, but only a small amount of water is introduced into the water collecting part 12 through the perforated pipe 8.
[0039]
However, after a lapse of 30 minutes, the valve holes 11 of the cylindrical bodies 10 and 10 ′ are opened, and when a large amount of water is introduced into the water collecting section 13, the water flows backward through the communication pipe 3, and Rises naturally and flows backward to the perforated pipe 8.
[0040]
Thereafter, when the valve hole 11 is closed and the introduction of water into the water collecting section 13 is stopped (the water in the water collecting section 13 is naturally drained from the main drain pipe 17), the water collecting section is now turned on. The water in 12 flows through the communication pipe 3 into the water collecting section 13 having a low water level. At this time, a negative pressure pump action (suction action) is exhibited by the rapid drop of the water level in the water collecting part 12, and the water in the water storage tank 2 is strongly sucked into the perforated pipe 8.
[0041]
Therefore, the filtration of the water in the water storage tank 2 is performed very quickly, so that the filtration efficiency of the water in the water storage tank 2 is greatly increased. Specifically, the water in the water storage tank 2 is filtered and discharged in about half the time as compared with the case where the water collecting units 12 and 13 are not provided as in the present embodiment.
[0042]
The purified water taken out of the water storage tank 2 as described above is stored in, for example, a reservoir for watering water through the main drainage pipe 17 and used for watering turf and the like.
[0043]
The present apparatus can be used in the following manner, for example, in addition to the above-mentioned method of use.
[0044]
(1) A plurality of water tanks 2 according to the present embodiment are provided in parallel, and filtration is performed a plurality of times.
[0045]
(2) In the case of the above-mentioned conventional method (c ), the filter medium becomes contaminated by impurities due to repeated use, so that the filter medium needs to be washed. When the filter medium is washed, the filter medium wash water contains impurities such as heavy metals, and the treatment of the filter medium wash water is very troublesome (as described above, it is not possible to discharge such water as it is). It is not desirable in terms of environmental problems.) In such a case, the filter medium washing water (water after washing the filter medium) can be purified by introducing the filter medium washing water (water after washing the filter medium) into the water guide unit 1 of the present apparatus.
[0046]
In the present embodiment, such a method of using (1) and (2) is also possible.
[0047]
【The invention's effect】
Since the present invention has been described above, it becomes a filtration device that can purify water very easily.
[Brief description of the drawings]
FIG. 1 is an explanatory plan view of the present embodiment.
FIG. 2 is a sectional view of the present embodiment.
FIG. 3 is an explanatory sectional view of the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Water conveyance part 2 Water storage tank 4 Water passage layer 4 'Inclined water passage layer 5 Drainage part 6 Water passage mat 7 Secondary drainage part
11 valve hole
12, 13 Water catchment section

Claims (4)

A water guide is provided at the top of one side of a water storage tank for storing water, and a water passage formed by laying appropriate members such as sand and gravel is provided at the bottom of the water tank, and a part of the water passage is provided. or all parts are made form the inclined water passage layer downwardly inclined from the guide water portion to the other side of the water tank, also, the reservoir for discharging the permeate that permeates the water flow layer outside 該貯 aquarium A drainage section is provided, and further, on the other upper side of the water storage tank, a sub-drainage section including an on-off valve hole for taking in a supernatant portion in which impurities are precipitated is provided, and drainage from the drainage section is collected. filtration apparatus and the water collecting portion, and a water collecting portion for collecting the waste water from the従排water portion, characterized that you are allowed to communicate. In the filtration equipment according to claim 1, a filtration device, characterized in that laid the Rohm mat on the water flow layer. In claim 1 Filtration equipment according to any one of the bottom position of the water collecting portion and the collecting unit, a filtration device, characterized that you are set to the same horizontal position. In the filtration device according to claim 1 any one, filter device and the water collecting part and water collecting unit, characterized in that you are provided outside the water tank.

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