KR101166324B1 - Intake system for filtered water - Google Patents

Abstract

According to the present invention, in order to collect the filtered water passing through the filtration layer disposed in the lower portion of the intake source is installed extending toward the intake source so that at least a portion is embedded in the lower portion of the filtration layer, one formed with a plurality of inlet holes in which the filtered filtrate is introduced Or a plurality of collecting pipes; One or a plurality of water intake pipes inserted into the water collecting pipes and formed at the tip thereof with an inlet through which the filtered water collected into the water collecting pipes is introduced; And there is provided a filtered water intake system including a water supply unit for collecting the filtered water introduced into the water intake pipe and transported to the outside.
According to the filtered water intake system of the present invention as described above, because the water intake pipe is installed in the water collection pipe only responsible for the water supply (通 水) function, the length of the water collection pipe can be obtained as short as the length of the water intake pipe, accordingly water ((通 水能) has the advantage that it can be smaller, and the installation cost of the collection pipe is also greatly reduced. Particularly in the case of using a multi-diameter collection pipe and / or intake pipe, the intake efficiency of the filtered water is further improved The cost of installation is greatly reduced.

Description

Intake system for filtered water

The present invention relates to a filtered water intake system, and more particularly, to a filtered water intake system capable of efficiently collecting collected filtrate after collecting contaminated water from intake sources such as river water, lake water and sea water.

As a method of withdrawing quality water from somewhat contaminated river water, a vertical sectional view showing an example of a conventional river filtration system is shown in FIG. 1A.

Referring to the drawings, the conventional lower filtration system 10 is installed in the lower portion of the lower bed and at least one collecting pipe 12 for attracting the naturally filtered river water through the aquifer layer (F1), and to the collecting pipe 12 And a sump 11 connected to store the filtered water. According to such a bottom filtration system 10, the output of the filtered water is also large, and the residence time in the aquifer layer F1 is short, so that the amount of elution of iron, manganese, etc. is small, and the water quality is good.

On the other hand, an example of a conventional seawater intake system using a sea sand layer or a crushed rock layer as a filtration layer to obtain a large amount of seawater with a level of cleanliness that can be used in a cooling water or a liquefied natural gas vaporization or desalination plant of a nuclear power plant is shown in FIG. It is shown in 1b.

As shown in the drawing, the conventional seawater intake system 20 creates a water collecting well 21 which is dug to a certain depth below the sea level near the shore, and the sand layer F2 or crushed rock layers of the seabed through the water collecting pipe 22. The water is immersed in (F3) to collect the sea water from which a large portion of the marine impurities are removed, and is configured to collect the seawater filtered through the water pipe (23) connected to the water collecting pipe (22).

However, in each of the collecting pipes 12 and 22 of the conventional lower filter system 10 and the seawater intake system 20 as described above, when a large amount of filtered water is collected, the filtered water inflow rate becomes very large near the outlet, and thus, the filtration layer. (F1, F2, F3) can not be used evenly. FIG. 1C shows the head distribution and the inflow rate distribution of the filtered water of the collecting pipes 12 and 22 applied to FIGS. 1A and 1B.

Detailed description with reference to Figure 1c, the head in the collection pipe (12,22) gradually decreases toward the outlet, due to the friction caused by the axial flow inside the collection pipe (12,22). In other words, the head of friction loss in turbulent flow is proportional to the square of the velocity, so the head decreases rapidly toward the outlet where the axial flow rate gradually increases due to the continuous inflow of the filtered water, resulting in distortion of the head distribution curve (Kim, SH). , Ahn, KH, Ray, C., "Distribution of discharge intensity along small-diameter collector well laterals in a model riverbed filtration," Journal of Irrigation and Drainage Engineering-ASCE, 134 (4), pp. 493-500, 2008 ). On the other hand, according to Darcy's law, the inflow rate of the filtered water in the water collecting pipes 12 and 22 is proportional to the difference between the head of the water collecting pipes 12 and 22 and the water level of the intake source such as a river or the sea. In response to the head distribution at (22), the rate of filtrate inflow increases rapidly toward the outlet. Therefore, in this case, the filtered water does not flow evenly at the same inflow rate over the entire length of the collecting pipes 12, 22, but flows at a large inflow rate near the outlet, whereas the filtered water at the collecting pipes 12, 22 located far from the outlet There is a side effect that almost no influx. In addition to these side effects, especially in the case of installing a large number of collecting pipes radially in the collecting wells (11, 21), concentrated filtration in the vicinity of the high-density collecting well of the collecting pipe has a bad effect on the water quality of the filtered water There is a problem.

The present invention was created in order to solve the problems described above, while improving the water intake efficiency of the filtered water by enhancing the water supply function as well as the water supply function of the filtered water, the large diameter of the collection pipe (大) The purpose is to provide a filtered water intake system that can reduce the construction cost by avoiding the straightening.

According to the present invention, in order to collect the filtered water passing through the filtration layer disposed in the lower portion of the intake source is installed extending toward the intake source so that at least a portion is embedded in the lower portion of the filtration layer, a plurality of inflow holes through which the filtered filtrate is introduced One or a plurality of collecting pipes formed; One or a plurality of water intake pipes inserted into the water collecting pipes and formed at a tip thereof with an inlet through which the filtered water collected in the water collecting pipes flows; And it is provided with a filtered water intake system including a water supply unit for collecting the filtered water introduced to the intake pipe to the outside.

The water collecting pipe and the water collecting pipe may each have a short diameter of a uniform diameter. Here, the intake pipe is preferably one end is located in the outlet portion of the collection pipe.

As a more preferred alternative, the collecting pipe may have a multi-diameter diameter that decreases toward the water intake. In this case, it is preferable that the diameter of the collecting pipe changes in stages, and that the portion of which the diameter changes gradually changes. In addition, the intake pipe may have a short diameter of a uniform diameter. In addition, the intake pipe may be located at least a portion of the largest diameter portion of the collection pipe.

On the other hand, the water intake pipe may have a multi-diameter that is smaller in diameter toward the water intake source. Here, it is preferable that the diameter of the water intake pipe changes in stages, and the portion of which the diameter changes gradually changes. In addition, the collecting pipe may have a short diameter of a uniform diameter.

As another preferred alternative, the water collecting pipe and the water collecting pipe may have a multi-diameter of which diameter decreases toward the water intake source. Here, it is preferable that the collection pipe and the water intake pipe each have their diameters changed in stages, and the portions of which the diameters change gradually change. In addition, the intake pipe may be located at least a portion of the largest diameter portion of the collection pipe.

In the present invention as described above, it is preferable that the water collection pipe has a larger porosity toward the water intake.

The intake pipe may be formed with a plurality of inlet holes through which the filtered water can be introduced. Here, the inlet hole may be formed around the inlet and adjacent, and in addition, may be further formed around the outlet portion of the intake pipe. Alternatively, the inlet hole may be formed to be evenly distributed around the outer peripheral portion of the intake pipe. On the other hand, the inlet hole may be in the shape of a selected one or a selected combination of a circular, slot and slot (Slot).

The water supply unit may be connected to the intake pipe, one or a plurality of water supply pipes for transporting the filtered water introduced to the outside, and one or a plurality of water pumps for providing a water supply pressure for transporting the filtered water introduced to the water pipes to the outside It may include. Here, the water supply unit may further include a flow control valve positioned at the end of the intake pipe to control the flow rate of the filtered water discharged from the intake pipe. On the other hand, the water supply unit may be a metering pump for supplying a predetermined amount of filtered water, instead of including a flow control valve.

Alternatively, the water supply unit, one or a plurality of confluence pipes connected to the intake pipe and introduced into the intake pipe, and the filtrate connected to the confluence pipe and joined in the air conduit pipe to the outside To include one or a plurality of water pipes, one or a plurality of connecting pipes connecting the conduit and the water pipes, and one or a plurality of water pumps to provide a water supply pressure for transferring the filtered water introduced into the water pipes to the outside Can be. Here, the water supply unit may further include a flow control valve installed in the connection pipe to control the flow rate of the filtered water. On the other hand, the water supply unit may be a metering pump for supplying a predetermined amount of filtered water, instead of including a flow control valve.

The intake source is river water or lake water, and the filtration layer may be an aquifer layer. Optionally, the water intake source is sea water, and the filtration layer may be a sand layer and / or a crushed rock bed.

According to the filtered water intake system according to the present invention, a water intake pipe is installed in the water collection pipe so that the water collection pipe has two functions, namely, a water supply function and a water supply function. For this reason, in the section in which the intake pipe is installed, even if the flow rate in the intake pipe increases, it does not affect the inflow rate of the filtered water in the intake pipe. Therefore, while the output flow rate remains the same, the length of the water collecting pipe can be shortened by the length of the water collecting pipe on the resistance side of the water collecting pipe. Accordingly, the water collecting capacity of the water collecting pipe can be reduced by that much. To have. In particular, since the section of the collecting pipe in which the intake pipe is installed is near the outlet, the flow rate of the filtered water is the largest and the flow rate is faster among the entire collection pipe, and thus the effect is greater.

In addition, the collection pipe of the site where the water intake pipe is installed, since only the filtered water introduced from the site needs to be transported, the effective cross-sectional area does not need to be large. In particular, in the case of using a multi-diameter water collecting pipe and / or a water intake pipe, the water extraction efficiency of the filtered water is further improved, while the maximum diameter can be reduced, so that the installation cost can be greatly reduced.

Figure 1a is a vertical cross-sectional view showing an example of a conventional lower filtration system,
Figure 1b is a vertical sectional view showing an example of the conventional seawater intake system,
Figure 1c is a view showing the distribution of the head of the water collector and the inflow rate of the filtered water applied to Figures 1a and 1b,
Figure 2a and Figure 2b is a vertical cross-sectional view showing an example applied to the bottom filtration and sea water intake as a filtered water intake system according to an embodiment of the present invention,
3A and 3B are partial cross-sectional perspective and cross-sectional views showing one embodiment of the collecting pipe and the intake pipe shown in FIGS. 2A and 2B;
4A and 4B are partial cross-sectional perspective and cross-sectional views showing another embodiment of the collecting pipe and the intake pipe shown in FIGS. 2A and 2B;
5 and 6 are partial cross-sectional perspective views showing yet another embodiment of the collecting pipe and the water intake pipe shown in Figures 2a and 2b, respectively;
7A and 7B are perspective views showing embodiments of the inlet hole formed in the intake pipe shown in FIGS. 2A and 2B, respectively;
8A is a plan view for explaining an embodiment of a water supply unit applied to the filtered water intake system of FIGS. 2A and 2B;
8B is a plan view for explaining another embodiment of the water supply unit applied to the filtered water intake system of FIGS. 2A and 2B;
9A is a view showing the distribution of the head of the collection pipe and the inflow rate of the filtered water when the collection pipe and the intake pipe shown in Figures 3a and 3b is applied,
FIG. 9B is a view showing the distribution of the head of the collection pipe and the inflow rate of the filtered water when the collection pipe and the collection pipe shown in FIGS. 4A and 4B are applied.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the ordinary or dictionary meanings, and the inventors should properly apply the concept of terms to explain their own invention in the best way. Based on the principle that the definition can be made in a simple manner, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, these are equivalent to replaceable at the time of the present application It should be understood that there may be variations.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figures 2a and 2b is a vertical cross-sectional view showing an example applied to the water filtration and seawater intake as a filtered water intake system according to an embodiment of the present invention, Figures 3a and 3b is one of the collection pipe and the intake pipe shown in Figures 2a and 2b Partial cross-sectional perspective and cross-sectional views illustrating an embodiment, FIGS. 4A and 4B are partial cross-sectional perspective and cross-sectional views showing another embodiment of the collecting pipe and the intake pipe shown in FIGS. 2A and 2B, and FIGS. 5 and 6 are FIGS. Partial cross-sectional perspective view showing another embodiment of the water collecting pipe and the water intake pipe shown in Figure 2b, respectively, Figures 7a and 7b is a perspective view respectively showing embodiments of the inlet hole formed in the water intake pipe shown in Figures 2a and 2b . The same reference numerals denote the same members having the same configuration and effect.

Referring to the drawings, the filtered water intake system according to an embodiment of the present invention includes one or a plurality of water collection pipes (110, 120), one or a plurality of water intake pipes (210, 220), and the water supply unit (310, 320).

The collection pipes 110 and 120 are for collecting the filtered water passing through the filtration layer F disposed below the water intake source S, and at least a portion of the collection pipes 110 and 120 is embedded in the lower portion of the filtration layer F. To this end, the collecting pipes 110 and 120 are installed to extend toward the water intake source S, and a plurality of inflow holes 111 and 121 into which the filtered water is introduced are formed. Here, the collection pipes 110 and 120 preferably form the inflow holes 111 and 121 so that the opening ratio increases toward the intake source S. This is because when the opening ratio of the collecting pipes 110 and 120 is constant, the filtered water flows inwardly toward the outlet, and a large inflow rate may occur in the collecting pipes 110 and 120 at the outlet side.

The water intake source (S) may be river water or lake water, in which case the filtration layer (F) is an aquifer. In addition, the intake source (S) may be sea water, in which case the filtration layer (F) may be a sand layer and / or crushed rock layer.

The collection pipe 110 may have a short diameter of a uniform diameter as shown in FIGS. 2A to 3B. On the other hand, as an alternative, as shown in Figure 4a and 4b the collection pipe 120 may have a multi-diameter diameter is smaller toward the water intake source (S). Since the diameter of the multi-diameter collecting pipe 120 increases toward the outlet, the flow rate increases with the inflow of the filtered water, but the axial flow velocity of the collecting pipe 120 does not increase, so the pressure inside the collecting pipe does not decrease significantly. Therefore, by using the filtration layer (F) evenly, it is possible to obtain a large amount of high quality filtered water. Here, the collection pipe 120 having a multi-diameter may be a point pipe in which its diameter is changed in stages and the portion 122 in which the diameter is gradually changed. In addition, the diameters, lengths, locations of inlets and inlets of the water collecting pipes 110 and 120 may include various factors such as the permeability coefficient of the filtration layer F, the thickness of the filtration layer F, the depth of the intake source S, and the required output flow rate. Determined by

In order to collect the filtered water collected in the collection pipes 110 and 120, the filtered water intake system of the present invention includes one or a plurality of collection pipes 210 and 220 inserted into the collection pipes 110 and 120. Inlet ports 211 and 221 are formed at the front end of the intake pipes 210 and 220, that is, the inlet end through which the filtered water collected in the collection pipes 110 and 120 flows. The diameters, lengths, locations of inlets and inlets of the intake pipes 210 and 220 may include the permeability coefficient of the filtration layer F, the thickness of the filtration layer F, the depth of the intake source S, the length and diameter of the collection pipe, It is determined by various factors such as the required cross-sectional area of the passing flow rate corresponding to the output flow rate. On the other hand, the intake pipe 210, 220 is preferably located in the central portion of the collecting pipe (110, 120), although not shown in the accompanying drawings for this purpose between the intake pipe (210,220) and the collecting pipe (110,120) at a constant distance Support (not shown) for spaced apart may be installed.

When the water collecting pipe 120 is a multi-diameter, the length of the water intake pipe 220 is preferably equal to the maximum diameter portion of the multi-diameter water collecting pipe 120, but is not limited thereto, and the water intake if necessary The tip of the tube 220 may extend to a portion larger than the second largest diameter, as well as a portion where the diameter of the collecting tube 120 is changed. In other words, the depth of inserting the water intake pipes 210 and 220 into the water collecting pipes 110 and 120 may include the permeability coefficient of the filtration layer F, the target output flow rate, the thickness of the filtration layer F, the length and diameter of the water collection pipe, It is determined by the depth and water quality of S).

In addition, the intake pipe (210, 220) is preferably formed with a plurality of inlet holes (213, 223) through which the filtered water can be introduced. The inflow holes (213. 223) may have a shape of a selected one or a combination of these, circular, slot and slot (Slot). In addition, the inflow holes 213 and 223 may be formed around the inlets 211 and 221 adjacent to each other, as shown in FIGS. 2A to 6B. That is, as shown in FIG. 7A, the inflow holes 213 and 223 may be further formed at the outlet side of the intake pipes 210 and 220, and are formed to be evenly distributed on the outer circumference of the intake pipes 210 and 220 as shown in FIG. 7B. May be

 The water intake pipe 210 may have a single diameter of a uniform diameter as shown in FIGS. 2A to 3B, but alternatively, a water intake source S as in the water intake pipe 220 shown in FIGS. 4A and 4B. It can have a multi-diameter that diameter becomes smaller toward). Here, the water intake pipe 220 having a multi-diameter may be a point pipe in which the diameter thereof changes in stages and the portion 222 of which the diameter changes gradually changes.

Meanwhile, only the combination of the water collecting pipe 110 and the water collecting pipe 210 having a short diameter and the water collecting pipe 120 and the water collecting pipe 220 having the multi-diameter have been described so far. Combinations such as That is, as shown in FIG. 5, a combination of the water collecting pipe 120 having the multi-diameter and the water collecting pipe 210 having the short diameter is possible. In addition, as shown in FIG. 6, a combination of the water collecting pipe 110 having a short diameter and the water collecting pipe 220 having a multi-diameter may be possible.

In the combination of the collection pipes 110 and 120 and the intake pipes 210 and 220 as described above, the intake pipes 210 and 220 are preferably located at the outlet portions of the collection pipes 110 and 120. If the collection pipe 120 has a multi-diameter, at least a portion of the collection pipes 210 and 220 may be located at the largest diameter portion 120a of the collection pipe 120.

In the embodiment of the present invention as described above, the filtered water introduced into the intake pipe (210, 220) is transferred to the outside by the water supply unit (310,320). FIG. 8A is a plan view for explaining an embodiment of the water supply unit in the filtrate water intake system of FIGS. 2A and 2B, and FIG. 8B is a plan view for explaining another embodiment of the water supply unit in the filtrate water intake system in FIGS. 2A and 2B. to be.

As shown in FIG. 8A, the water supply unit 310 according to an embodiment may include one or a plurality of water pipes 312 and one or a plurality of water pumps 314.

 The water pipe 312 is connected to the intake pipe (210, 220) to transfer the filtered water introduced to the outside. To this end, the water pump 314 provides water pressure. Here, the flow rate control valve 315 may be installed at the ends of the intake pipes 210 and 220 to control the flow rate of the filtered water discharged from the intake pipes 210 and 220. However, instead of the flow control valve 315, a fixed quantity pump for supplying a predetermined amount of filtered water may be used as the water pump 314. On the other hand, the water pump 314 is shown as installed in the water pipe 312, but this is an example, if it can provide the required water supply pressure, there is no limitation on the installation position and number.

According to another embodiment of the water supply unit 320, one or a plurality of joining pipes 321, one or a plurality of water pipes 322, and one or a plurality of connecting pipes 323, as shown in Figure 8b And, it may include one or a plurality of water pump (324).

The confluence pipe 321 is connected to the water intake pipes 210 and 220 to join the filtered water introduced into the water intake pipes 210 and 220. The water pipe 322 is connected to the confluence pipe 321, and transfers the filtered water joined in the confluence pipe 321 to the outside. And the connection pipe 323 connects the confluence pipe 321 and the water supply pipe 322. The water pump 324 provides a water pressure for transferring the filtered water introduced into the water pipe 322 to the outside. Here, the flow rate control valve 325 may be installed in the connection pipe 323 to control the flow rate of the filtered water discharged from the intake pipes 210 and 220. However, instead of the flow control valve 325, a fixed quantity pump for supplying a predetermined amount of filtered water may be used as the water pump 324. On the other hand, the water pump 324 is also shown as installed in the water pipe 322, but this is an example, provided that the required water supply pressure, there is no limitation on the installation position and number.

Meanwhile, in FIGS. 8A and 8B, the collecting pipe 110 and the intake pipe 210 are illustrated to have a single diameter having a uniform diameter, which is illustrated as an example for convenience of description, and the collection pipe 120 and the water intake are illustrated. It is well known that the tube 220 may be equally applicable to a multi-diameter.

Hereinafter, with reference to the accompanying drawings to explain the operation and effects of the filtered water intake apparatus according to an embodiment of the present invention.

9A illustrates a case in which a water intake pipe is inserted into the water collecting pipe, and the head distribution and the inflow rate distribution of the filtered water when the water collecting pipe 110 and the water collecting pipe 210 have a single diameter.

Prior to the description of the filtered water intake apparatus according to the embodiment of the present invention, in a conventional conventional water collecting pipe, the flow rate increases toward the outlet and thus the flow rate increases to decrease the pressure, thereby rapidly increasing the filtered water inflow rate. Although the filtered water does not flow evenly at the same inflow rate over the entire length of the water pipe, and the large inflow rate is introduced near the outlet, there is a side effect that the filtered water is hardly introduced in the collecting pipe far from the outlet.

In the embodiment of the present invention for solving the above problems, the water intake pipe 110 is inserted into the water intake pipe (only the water supply function) in the interior of the water collecting pipe (110). Here, the power of the water pumps 314 and 324 is increased to drain water through the water intake pipe 210 inserted into the water intake pipe 110 to increase the flow rate of the filtered water introduced into the water intake pipe 210. The filtered water flow in the is blocked from the flow in the collection pipe 110 located outside the intake pipe (210). For this reason, in the section in which the intake pipe 210 is installed, the fast flow rate in the intake pipe does not affect the inflow rate of the filtered water in the intake pipe 110. Therefore, while the output flow rate is maintained as it is, the length of the collecting pipe 110 can be shortened by the length of the intake pipe 210 in the resistance inside the collecting pipe. The effect that water supply) may become so small is produced. In particular, when the intake pipe 210 is not installed, the flow rate in this section is the largest of the entire collection pipe 110, because the flow rate is faster the effect can be said to be greater.

In addition, the water collection pipe 110 of the portion of the intake pipe 210 is installed, since only the filtered water introduced from the intake pipe 210 is installed, it does not need to have a large effective area can greatly reduce the cost of installing the water collection pipe .

Furthermore, as in the case of arranging a plurality of collecting pipes 110 in a radial manner, the concentration near the outlet of the collecting pipe 110 is greater because the installation density of the collecting pipe 110 is greater. As a solution to this problem, as shown in FIG. 9A, the water inlet pipe 210 is inserted into the outlet portion of the water collecting pipe 110 so that the location where the concentrated filtration occurs in the water collecting pipe 110 is not appropriate toward the water intake source. The effect is to move the position by a distance.

On the other hand, Figure 9b is a diagram showing the distribution of the head and the inflow rate of the filtered water when the collection pipe 120 and the intake pipe 220 is multi-diameter.

As shown, when the collection pipe 120 is a multi-diameter, since the axial flow rate in the portion far away from the outlet is not large, the filtered water smoothly flows even in this portion is suitable for large-capacity filtration system. . In addition, when using the multi-diameter diameter of the water intake pipe 220 is gradually reduced toward the intake source (s) toward the intake source (s) in the space between the intake pipe 220 and the collection pipe 120 (water intake source 220) Since the filtered water flows, the cross-sectional area through which the filtered water flows gradually increases, so that the flow rate does not increase significantly even though the axial flow rate gradually increases. Therefore, the filtered water may flow evenly over the entire collection pipe 120 of the portion of the intake pipe 220 is installed.

However, even when using the water intake pipe 220 which is reduced in diameter in step, the flow rate is faster at the tip of the water intake pipe 220, so the head distribution of the water collection pipe 120 is bent sharply at the tip of the water intake pipe 220 (See dashed line in FIG. 9B). Due to this, the concentrated inflow of the filtered water is alleviated than without the intake pipe 220, but still occurs and the efficiency of the entire collection pipe 120 is reduced. In particular, when the inlet 221 is formed so that only the front end is used as the intake pipe 220, the large flow rate and the resulting severe pressure drop due to this is limited to the tip of the intake pipe 220 is the minimum pressure point.

In order to solve the above problems, the inlet 221 is formed and opened at the tip of the intake pipe 220, as well as forming a plurality of inlet holes 222 in a predetermined section from the tip to increase the inlet area to the minimum pressure point Should reduce the flow rate. When the inlet hole 222 is formed in the intake pipe 220 as described above, the distribution of the head of the collection pipe 120 and the inflow rate of the filtered water are sharply formed at the tip of the intake pipe 220 as shown in FIG. 9B. It is not (shown by a dotted line) but has a soft shape, and the efficiency of the collection pipe 120 is improved.

As described above, according to the filtered water intake system according to the present invention, while the output flow rate is maintained, the effect of shortening the length of the collection pipes 110 and 120 by the length of the intake pipes 210 and 220 in the resistance inside the collection pipe is generated. Therefore, the maximum axial flow rate and the flow rate in the collection pipe (110, 120) is reduced to reduce the concentrated inflow by that much. Therefore, the filtration layer (F) is more evenly used to improve the filtration water quality, and the installation cost is reduced.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

110,120: collecting pipe 111,121: inflow hole
210,220 Intake pipe 211,221 Inlet
213,223: Inlet hole 310,320: Water supply unit
312,322: Water pipe 314,324: Water pump
315,325 flow control valve 321 confluence pipe
323 connector F: filtration layer
S: Water source

Claims (27)

One or more formed with a plurality of inlet holes in which at least a portion is extended toward the water source so as to be embedded in the lower portion of the filter layer to collect the filtered water passing through the filter layer disposed in the lower portion of the water source, Water collecting pipe;
One or a plurality of water intake pipes inserted into the water collecting pipes and having an inlet for inflow of the filtered water collected in the water collecting pipes at a tip thereof, and having diameters that decrease in diameter toward the water intake source; And
Filtrate water intake system including a water supply unit for collecting the filtered water introduced to the intake pipe to the outside. The method according to claim 1,
The collecting pipe is a filtered water intake system having a short diameter of a uniform diameter. The method according to claim 2,
The intake pipe is filtered water intake system one end is located in the outlet portion of the collection pipe. The method according to claim 1,
The water collection pipe has a multi-diameter diameter of the water intake toward the water intake toward the water source. The method of claim 4,
The collection pipe is filtered water intake system in which the diameter is changed in stages, the portion of the diameter changes gradually. delete The method of claim 4,
Said intake pipe being at least partially located in the largest diameter portion of said collection pipe. delete The method according to claim 1,
The intake pipe, the diameter of the filtered water intake system in which the diameter is changed in stages, the portion of the diameter changes gradually. delete delete delete delete The method according to any one of claims 1 to 5, 7 and 9,
The collecting pipe is a filtered water intake system that the opening rate is increased toward the intake source. The method according to any one of claims 1 to 5, 7 and 9,
The intake pipe is filtered water intake system formed with a plurality of inlet holes that can be introduced into the filtered water. The method according to claim 15,
The inlet hole is formed around the inlet and the filtered water intake system. 18. The method of claim 16,
The inlet hole is further formed in the periphery adjacent to the outlet portion of the intake pipe. The method according to claim 15,
The inlet hole is filtered water intake system formed to be evenly distributed around the outer peripheral portion of the intake pipe. The method according to claim 15,
The inlet hole is a filtered water intake system in the shape of a selected one or a combination of a circular, slot and slot (Slot). The method according to any one of claims 1 to 5, 7 and 9,
The water supply unit,
One or a plurality of water pipes connected to the water intake pipe to transfer the filtered water introduced to the outside;
Filtrate water intake system including one or a plurality of water pump to provide a water pressure for transporting the filtered water introduced to the water pipe to the outside. The method of claim 20,
The water supply unit,
And a flow rate control valve positioned at an end of the intake pipe to control a flow rate of the filtrate discharged from the intake pipe. The method of claim 20,
The water pump is a filtration water intake system that is a metering pump for supplying a predetermined amount of filtration water. The method according to any one of claims 1 to 5, 7 and 9,
The water supply unit,
One or a plurality of conduit pipes connected to the intake pipe and to which the filtered water introduced into the intake pipe joins;
One or a plurality of water pipes connected to the confluence pipe and transferring the filtrate water joined from the confluence pipe to the outside;
One or a plurality of connecting pipes connecting the conduit and the water pipe;
Filtrate water intake system including one or a plurality of water pump to provide a water pressure for transporting the filtered water introduced to the water pipe to the outside. 24. The method of claim 23,
The water supply unit,
Filtrate water intake system further comprises a flow control valve installed in the connecting pipe to control the flow rate of the filtered water. 24. The method of claim 23,
The water pump is a filtration water intake system that is a metering pump for supplying a predetermined amount of filtration water. The method according to any one of claims 1 to 5, 7 and 9,
The water intake source is river water or lake water,
The filtration layer is an aquifer layer filtered water intake system. The method according to any one of claims 1 to 5, 7 and 9,
The water source is sea water,
And the filtration layer is a sand layer or a crushed rock bed.

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