KR20200020252A - Low Energy Type Filtration Apparatus Using Solar Energy and Operation Method Thereof - Google Patents

Abstract

The present invention relates to a low energy type filtering device using solar energy and an operating method thereof. The low energy type filtering device of the present invention comprises: a filtering device body unit having a predetermined hollow cross section and height, and having a filtered water discharge pipe (103) at a predetermined position of a wall surface; and an energy generating unit. The filtering device body unit includes: a first slant plate having a narrow upper and wide lower structure, positioned at a predetermined height inside the filtering device body unit, having a first main pipe connection hole connected with a first main pipe mounted with a third valve for providing a moving path of raw water for filtration or backwash wastewater at a central part, and having a first through-pipe connection hole formed at the outside of the first main pipe connection hole; a second slant plate having a narrow upper and wide lower structure formed with a second through-pipe connection hole, and positioned to be spaced apart from a lower side of the first slant plate by a predetermined distance; a filtering material layer positioned to be spaced apart from a lower side of the second slant plate by a predetermined distance; a water collecting space positioned at a lower side of the filtering material layer; and at least one through-pipe provided for connecting the first and second through-pipe connection holes, and vertically extending to penetrate the filtering material layer.

Description

Low Energy Type Filtration Apparatus Using Solar Energy and Operation Method Thereof}

The present invention relates to a low-energy type filtering device using solar energy and a method of operating the same, and more particularly, to a low-energy type filtering device using solar energy that can be effectively filtered and washed while minimizing the energy required for the operation of the filtering device. The purpose is to provide a method.

According to the UN World Water Development Report, by 2025, about 2.7 billion people, or 40% of the world's population, will face water shortages, and about 20% of the world's countries will experience severe water shortages. This is because supply is limited and demand continues to increase due to population growth and income levels.

Water supplied to drinking water undergoes a process of purifying river water, lake water, sea water, etc., and river water or lake water generally carries out flocculation process, precipitation process, filtration process, adsorption process, oxidation process, disinfection process, etc. It is being removed.

Meanwhile, the filtration process is a process of separating various particulate contaminants contained in raw water, and the particulate matter must be completely removed from the filtration process. If a large amount of particulate matter is contained, the space between the adsorbents or the dissolved contaminants to be adsorbed are not sufficiently adsorbed, leading to operational problems and deterioration of the treated water quality.

The general filtration process is using a filter tank filled with a filter material, such as sand and gravel layer, the filtration is carried out in a downflow method injecting raw water to the top of the sand layer, and periodically or aperiodically supplied in the order of gravel layer, sand layer these layers It is a situation to perform a backwash process to remove the particulate matter accumulated in the.

However, when raw water is supplied to the top of the sand layer to remove particulate matter, the raw water is often supplied only as part of the surface of the sand layer. In addition, during the backwashing process, the water required for backwashing has to be strongly flowed from the bottom to the top. Therefore, most of them rely on high pressure pumps and the like.

Therefore, it is necessary to develop a filtration device that can secure stable water quality and further operate economically.

Korea Utility Model Registration No. 0888784

The present invention has been made to solve the above problems, and an object of the present invention is to provide a filtration device and an operation method thereof that can be operated economically with less energy consumption during the filtration process and the back washing process of the filter bed.

In addition, an object of the present invention is to provide a filtration device and its operation method that can ensure the maximum amount of permeate per unit volume of the filter device by increasing the backwash cycle of the filter medium layer.

Furthermore, an object of the present invention is to provide a filtration apparatus and a method of operating the same, which are economically operable by generating electricity from the solar energy and using the same.

The filtration device using the solar energy of the present invention for solving the above problems, has a predetermined shape of the cross section and the height of the inside, the filtration device body portion provided with a filtered water discharge pipe 103 at a predetermined wall surface; And an energy generating unit,

The filtration device main body is located at a predetermined height inside the filtration device main body, and in the central part is a first main pipe connected to a first main pipe equipped with a third valve for providing a moving passage for filtration raw water or backwash wastewater. A first inclined plate having a connecting hole and having an upper and lower light structure having a first connecting hole formed therein through a first connecting hole outside the first main pipe connecting hole; A second inclined plate spaced apart a predetermined distance from the first inclined plate having an upper narrow light structure having a second through hole formed therein; A filter material layer spaced below the second inclined plate by a predetermined distance; A collecting space located below the filter medium layer; And at least one through tube extending vertically to penetrate through the filter medium layer, provided to connect the through tube first connecting hole and the through tube second connecting hole.

Here, the energy generation unit may include a light collecting plate for condensing sunlight into electrical energy, a storage battery for storing the electrical energy generated by the light collecting plate, and an inverter for converting the electrical energy stored in the storage battery into alternating current. have.

In addition, the filtration device of the present invention, when the backwashing of the filter medium layer, a nozzle portion connected to the second main pipe with a fifth valve for injecting air or backwashing water is further provided between the second inclined plate and the filter medium layer. Can be.

In addition, in the filtration device of the present invention, it is preferable that a pressing member is further provided on the upper portion of the first inclined plate for pressurizing the backwashing water during backwashing of the filter medium layer.

Here, the pressing member is made of a material capable of expansion and contraction having a predetermined size, the pressing member fixing portion located above the pressing member for fixing the pressing member to the filtering device main body, the filtering device main body And a fluid supply line equipped with a pressurizing member moving part positioned below the pressurizing member vertically moving to be in close contact with the sub-inner wall and a first valve for supplying fluid to the pressurizing member. More preferably, the second slant plate surface further includes a plurality of feed holes whose cross sectional area increases from the center portion to the outer portion so that the filtered raw water is uniformly supplied to the surface of the filter medium layer.

In addition, the filtering device of the present invention, the first inclined plate may be further provided with a water level sensor for determining whether the pressing member is expanded.

The filtration apparatus of the present invention further includes a first auxiliary pipe for discharging the backwash wastewater of the filter medium layer to the outside at a predetermined position in the first main pipe, and a second auxiliary pipe communicating with the second main pipe. The filter material layer may be filled with a filter material consisting of a multi-layer having a small particle diameter as the number thereof goes down.

In the operation method using the filtration device, S-1 step of performing a filtration process by supplying the raw water for filtration to the first main pipe for a predetermined time, S-2 step of stopping the supply of the filtration raw water, the air And performing the washing of the filter media layer with filtrate and repeating the step S-3 for discharging the generated backwash wastewater, and the steps S-1 to S-3.

Here, in the step S-3, the step of measuring the water level in the upper portion of the first inclined plate with a water level sensor and when the measured water level is lower than a predetermined range, supplying a fluid to the fluid supply line to expand the pressure member Further comprising, in the step S-1 of supplying the filtration raw water to the first main pipe for a predetermined time, it is preferable to further include the step of opening the fluid discharge pipe to shrink the pressing member.

According to the filtration device of the present invention and its operation method, it is possible to operate the filtration device with low energy without requiring additional power because the filtration water is guided to the lower part of the filter medium layer by using the water head difference when backwashing the filter medium layer. There is an advantage.

In addition, the upper part of the main body of the filtration device of the present invention is provided with a pressurizing member capable of pressurizing the filtrate, and even if the water head difference of the filtrate is small, it is possible to apply sufficient pressure necessary for backwashing the layer of the filter medium to improve the backwashing efficiency. have.

Furthermore, the filtration device of the present invention is provided with a second inclined plate having a plurality of feed holes having a cross-border light structure and increasing in cross-sectional area from the center to the outer shell, whereby the raw water for filtration supplied to the filter medium layer can be uniformly supplied. Therefore, there is an advantage that the backwash cycle of the filter medium layer can be kept long.

Moreover, the present filtration device has the advantage that it is possible to drastically reduce the running cost because it uses the solar energy.

1 is a schematic perspective view of a low energy filtration device using solar energy according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the filtration device shown in FIG. 1 for explaining a process of filtering raw water for filtration.
3 is an enlarged perspective view of the second inclined plate.
FIG. 4 is a cross-sectional view of the filtration apparatus shown in FIG. 1 for explaining a process of backwashing the filter media layer using backwash water.
5 is an enlarged cross-sectional view of the pressing member.
6 is a flowchart illustrating an operation method using the filtration device of the present invention.

The terms “comprise,” “have,” or “comprise” in this application are intended to indicate that there is a feature, number, step, component, part, or combination thereof described on the specification, but one or more other. It should be understood that it does not exclude in advance the possibility of the presence or addition of features or numbers, steps, actions, components, parts or combinations thereof.

When a component is said to be "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that another component may be present in the middle. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between. Other expressions describing the relationship between components, such as "between" and "immediately between" or "neighboring to" and "directly neighboring", should be interpreted as well.

In addition, all terms used herein, including technical or scientific terms, unless otherwise defined, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and are not construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Hereinafter, a low energy filtration device using solar energy according to the present invention will be described with reference to the accompanying drawings. The same reference numerals are used for the same components in the drawings, and duplicate descriptions of the same components are omitted.

1 is a schematic perspective view of a low energy filtration device using solar energy according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the filtration device shown in FIG. 1, illustrating a process of filtering raw water for filtration, FIG. 4 is an enlarged perspective view of the second inclined plate, and FIG. 4 is a cross-sectional view of the filtration apparatus shown in FIG. 1, illustrating a process of backwashing the filter media layer using backwash water.

Low-energy type filtration device using solar energy according to the present invention, the filter unit body portion 100, the first inclined plate 110, the second inclined plate 120, the nozzle unit located inside the filter unit main body 100, 130, the filter medium layer 140, the collecting space 150, the pressure member 160 and the through tube 170, and an energy generating unit 200 for supplying electrical energy required to open and close a plurality of solenoid valves. It is done by

The filter device main body 100 has a predetermined cross-section, such as a circular or polygonal shape, the first inclined plate 110, the second inclined plate 120, the nozzle unit 130, the filter medium layer 140, the collecting space ( 150) has a predetermined height empty inside to accommodate the pressing member 160, the through tube 170, and the like. Here, the material of the filter main body 100 is not particularly limited, but is preferably made of a metal having corrosion resistance and durability as an example.

The first inclined plate 110 is provided at a predetermined height inside the filtration apparatus main body 100, and the first inclined plate 110 serves as a passage through which raw water for filtration or backwash wastewater moves.

Specifically, a first main pipe connection hole 111 is formed in the central portion of the first inclined plate 110, and at least one through pipe first connection hole outside the first main pipe connection hole 111 ( 112). Here, the first main pipe line 180 is connected to the first main pipe connection hole 111 to supply raw water for filtration or to discharge the pollutant particle layer 141 accumulated in the filter medium layer 140. In addition, the at least one through tube first connection hole 112 is equipped with a through tube 170 to be described later.

When the first inclined plate 110 is viewed from the front, it is preferable that the upper portion is narrow and the lower side is a wide narrow light structure. This is to easily collect the backwash wastewater generated during backwashing of the filter medium layer 140.

A second inclined plate 120 is provided below the first inclined plate 110 to uniformly supply raw filtration water to the surface of the filter medium layer 140.

Specifically, as shown in FIG. 3, the second inclined plate 120 has a top and bottom light structure similar to that of the first inclined plate 110, and at least one through hole second to which a through tube 170 to be described later is mounted. The connection hole 122 and the plurality of water supply holes 121 are formed.

In particular, the plurality of water supply holes 121 is formed so that the cross-sectional area of the water supply hole 121 formed in the upper portion of the center, that is, the relatively narrow cross-sectional area is small, and the cross-sectional area of the water supply hole 121 gradually increases toward the lower portion of the outer portion. It is desirable to be.

In the case of a filtration process using a filter medium, particulate matter is mainly removed from the surface of the filter medium. Therefore, in order to increase the filtration time or improve the filtration efficiency of the particulate material, it is very important to uniformly supply raw water to the surface of the filter medium. In the present invention, the second inclined plate 120 is formed as described above, and the second inclined plate 120 is formed with a plurality of feed holes 121 whose cross-sectional area increases from the center to the outer shell, and is supplied to the filter medium layer 140. It is possible to supply the raw water very uniformly. That is, the raw water for filtration supplied to the center portion of the second inclined plate 120 passes only a part of the feed hole 121 having a relatively small cross-sectional area, and the rest passes along the inclined plate 120 to pass through the water supply hole 121. Therefore, there is an advantage that all surfaces of the filter medium layer 140 may be utilized.

The filter medium layer 140 is filled under the second inclined plate 120. The filter medium layer 140 is to remove coarse particles and microparticles contained in the raw water for filtration and may be filled with a filter medium having a smaller particle size downward. For example, the filter medium may be at least one of gravel, sand, anthracite, and activated carbon, but is not limited thereto.

Under the filter medium layer 140 is provided a collecting space 150 having a predetermined space. The collecting space 150 is a place where clean filtered water from which particulate matter is removed while passing through the filter medium layer 140 is collected, and the collected filtered water moves to the upper portion of the first inclined plate 110 via the through pipe 170 which will be described later. It is then discharged to the outside.

The nozzle unit 130 may be further provided between the second inclined plate 120 and the filter medium layer 140. When the raw water for filtration passes through the filter medium layer 140, the particulate matter contained in the raw water for filtration is removed from the filter medium layer 140, but the particulate matter removed from the filter medium layer 140 closes the pores of the filter medium and is filtered. The raw water does not pass through the filter medium layer 140 well. Therefore, after supplying the raw water for filtration for a predetermined time or a certain amount, it is common to carry out a backwashing process to wash the filter medium layer 140 periodically or aperiodically, in which case the filtrate is supplied in a direction opposite to the supply direction of the raw water for filtration. If the particles blocking the pores between the contaminant particle layer 141 and the filter medium accumulated on the surface of the filter medium layer 140 is dropped to restore the filtering performance.

However, if the amount of the pollutant particle layer 141 accumulated on the filter medium layer 140 is too large, the backwash water supplied to the filter medium layer 140 may not pass well, resulting in a decrease in backwash efficiency. The present invention further includes a nozzle unit 130 for injecting air or water to the filter medium layer 140 so that the pollutant particle layer 141 can be easily broken and dispersed. The advantage is that backwashing can be carried out very efficiently.

The second main pipe line 190 is connected to one side of the nozzle unit 130, and the second auxiliary pipe line 182 and the fifth main pipe line 190 communicate with the first main pipe line 180. The valve 191 is provided. Accordingly, when only air is supplied to the nozzle unit 130, the second auxiliary pipe 182 is closed and compressed air is transferred from a compressor (not shown). When the backwash water is supplied, the second auxiliary pipe 182 is closed. ), Air or backwash water can be selected.

The filtration apparatus of the present invention further includes one or more vertically extending through-tubes 170 sequentially passing through the first inclined plate 110, the second inclined plate 120, and the filter medium layer 140.

Specifically, the through pipe 170 penetrates the through pipe first connecting hole 112 of the first inclined plate 110 and the through pipe second connecting pipe 122 of the second inclined plate 120, and then, again, the filter medium. Positioned to pass through layer 140. Here, the through tube 170 may be an open cylinder or a square cylinder with an upper portion and a lower portion open, but is not limited thereto.

Therefore, the filtered water of the collecting space 150 located below the filter medium layer 140 moves to the upper portion of the first inclined plate 110, or the filtered water of the upper portion of the first inclined plate 110 moves to the collecting space 150. Although possible, the raw water for filtration and backwash wastewater supplied between the first inclined plate 110 and the second inclined plate 120 or between the second inclined plate 120 and the filter medium layer 140 flows into the through pipe 170. Can't be.

The filtration device of the present invention further includes a pressing member 160 on the first inclined plate 110 to improve the backwashing effect of the filter medium layer 140 and to operate the filtration device with low energy.

Specifically, referring to FIG. 5, which is an enlarged cross-sectional view of the pressing member, the pressing member 160 is positioned above the inner portion of the filtration apparatus main body 100 and has elasticity such as rubber having a predetermined size and capable of expanding and contracting. It is made of material.

In addition, the upper side of the pressing member 160 is provided with a pressing member fixing part 163, one side of which is fixed to the filtration apparatus main body 100, and the pressing member moving unit 164 is further provided below the pressing member 160. It is preferable. The pressing member fixing part 163 supports the pressing member 160 to be fixed at a predetermined position of the filtration apparatus main body 100, and the pressing member moving part 164 contracts and expands the pressing member 160. It is fixed only to the pressing member 160 to allow freely.

Here, the pressing member moving part 164 is preferably in close contact with the inner wall surface of the filtration device main body 100 so as to press the filtered water of the upper portion of the second inclined plate 120 downward, has a predetermined thickness and elasticity It is more preferable that it consists of rubber | gum or silicone material which has.

In order to expand and contract the pressure member 160, the fluid supply line 161 having the first valve 165 and the fluid discharge line 162 having the second valve 166 are provided with the pressure member 160. It is connected to one side, the water level sensor 101 is provided inside the filtration device main body 100. That is, when backwashing the filter medium layer 140, the water level sensor 101 continuously measures the level of the upper portion of the first inclined plate 110, and when the fluid level is lowered below the predetermined level, fluid is opened through the opening of the first valve 165. Supply to expand the pressure member 160. On the contrary, when the backwashing of the filter medium layer 140 is finished, the first valve 165 is closed to close the fluid supply line 161, while the second valve 166 is opened to induce the pressure member 160 to naturally contract. do.

Meanwhile, a first main pipe line 180 is connected to the first main pipe connection hole 111 of the first inclined plate 110 to supply raw water for filtration or to discharge the backwash wastewater to the outside. The first and second auxiliary pipes 181 and 182 are provided at 180.

In addition, at the position where the first main pipe line 180 meets with the third valve 183, the first auxiliary pipe line 181, the fourth valve 184, and the second auxiliary pipe line 182 and the second main pipe line 190. The fifth valve 191 may be provided.

Reference numeral 103 denotes a filtered water discharge tube provided at a predetermined height of the filtration apparatus main body 100 and penetrates a wall, and reference numeral 102 denotes a discharge tube for discharging gas.

Meanwhile, in the present invention, solar energy may be utilized as a power source for opening and closing a plurality of valves.

Specifically, as shown in Figures 2 and 4, the energy generating unit 200 of the present invention, the light collecting plate 210 for condensing the sunlight into electrical energy, the electrical energy generated by the light collecting plate 210 Storage battery 220 for storing the, and the electrical energy stored in the battery 220 is converted into alternating current by the first valve 165, the second valve 166, the third valve 183, the fourth valve 184 And an inverter 230 that supplies power to at least one of the fifth valve 191.

Here, the light collecting plate 210 may change the angle of the light collecting plate 210 by using an angle adjusting member (not shown) so as to accumulate more direct sunlight by changing the angle according to the position and altitude of the sun.

Hereinafter, an operation method using the above-described filtration device will be described with reference to FIGS. 2, 4, and 6. Operation method according to the present invention, S-1 step of performing a filtration process by supplying the raw water for filtration to the first main pipe 180 for a predetermined time, S-2 step of stopping the supply of the raw water for filtration, and The filter medium layer 140 is washed with air and filtered water, and an S-3 step of discharging the generated backwash wastewater is performed, and these steps S-1 to S-3 are repeated.

Specifically, in step S-1, the third valve 183 of the first main pipe line 180 is opened, and the remaining fourth valve 184 and the fifth valve 191 are closed to filter the raw water for filtration. The inclined plate 120 is supplied to the upper surface. The filtered water from which the particulate matter is removed while passing through the filter medium layer 140 is discharged to the outside through the filtered water discharge pipe 103 after passing through the collecting space 150 and the through pipe 170. Of course, when the pressurizing member 160 is expanded during backwashing, the pressurizing member 160 must be contracted by opening the second valve 166 of the fluid discharge line 162 before or with supply of the raw water for filtration. Ham is self-evident.

After supplying the raw water for filtration for a certain time, backwashing is required to remove the pollutant particle layer 141 accumulated in the filter medium layer 140, and thus the supply of the raw water for filtration is stopped (step S-2).

In step S-3, the third valve 183 of the first main pipe 180 is closed and the fourth valve 184 is opened. The fifth valve 191 adjusts the opening and closing angle of the valve by selecting whether to supply air or backwash water. If only air is supplied, the opening and closing angle of the fifth valve 191 is adjusted so that the second main pipe 190 and the second auxiliary pipe 182 do not communicate with each other. The opening and closing angle of the fifth valve 191 is adjusted to communicate the pipe line 190 and the second auxiliary pipe line 182.

Then, the air or backwashing water supplied to the second main pipe passage 190 is sprayed to the upper part of the filter medium layer 140 through the nozzle unit 130, and at the same time or after, the filtered water of the upper portion of the first inclined plate 110 passes through the through pipe. After passing through the 170 and the collecting space 150, the filter medium 140 moves upward, and the backwash wastewater containing the contaminants is transferred to the first main pipe 180 and the first auxiliary pipe 181. Discharged.

Here, in the step of moving the filtered water of the upper portion of the first inclined plate 110 to the through-tube 170, the water level of the upper portion of the first inclined plate 110 is measured by the water level sensor 101, if the water level is below a predetermined range If lowered, it is preferable to further include expanding the pressurizing member 160 by supplying a fluid through the opening of the first valve 165 of the fluid supply passage 161.

As described above, when the pressurizing member 160 is expanded to pressurize the filtrate, even if the level of the filtrate is low, sufficient pressure necessary for backwashing the filter medium layer 140 may be applied, thereby improving backwashing efficiency.

 The specific parts of the present invention have been described in detail above, and to those skilled in the art, these specific descriptions are merely preferred embodiments, and the scope of the present invention is not limited thereto. It is apparent to those skilled in the art that various changes and modifications can be made within the scope and spirit of the art, and such variations and modifications are within the scope of the appended claims.

100: filtration unit body
101: water level sensor 102: gas discharge pipe
103: filtered water discharge pipe
110: first inclined plate
111: first main pipe connection hole 112: through pipe first connection hole
120: second inclined plate
121: water supply hole 122: through-hole second connection hole
130: nozzle unit
140: filter medium layer
141: pollutant particle layer
150: catchment space
160: pressure member
161: fluid supply line 162: fluid discharge line
163: pressing member fixing portion 164: pressing member moving part
165: first valve 166: second valve
170: through tube
180: first main pipe
181: first auxiliary pipe 182: second auxiliary pipe
183: third valve 184: fourth valve
190: second main pipe
191: fifth valve
200: energy generating unit
210: light collecting plate 220: storage battery
230: inverter

Claims (10)

A filtration apparatus main body 100 having a predetermined cross section and a height having an empty inside, and having a filtered water discharge pipe 103 at a predetermined position on a wall; And
Including the energy generating unit 200,
The filtration device main body 100 is located at a predetermined height inside the filtration device main body 100, and the center portion is provided with a third valve 183 provided with a moving passage for filtration raw water or backwash wastewater. 1 is provided with a first main pipe connection hole 111 to which the main pipe line 180 is connected, and an upper narrow down light structure having a through pipe first connection hole 112 formed outside the first main pipe connection hole 111. First inclined plate 110 having; A second inclined plate 120 positioned below the first inclined plate 110 having an upper and lower light structure having a second pipe hole 122 formed therethrough; A filter medium layer 140 spaced apart from the second inclined plate 120 by a predetermined distance; A collecting space 150 positioned below the filter medium layer 140; And at least one through tube 170 vertically extending to penetrate the filter medium layer 140 and provided to connect the through tube first connecting hole 112 and the through tube second connecting hole 122. Filtration device using solar energy, characterized in that.
The method of claim 1,
The energy generating unit 200, the light collecting plate 210 for condensing the sunlight into electrical energy, the storage battery 220 for storing the electrical energy generated in the light collecting plate 210, and the storage battery 220 Filtration device using solar energy, characterized in that it comprises an inverter 230 for converting the stored electrical energy into alternating current.
The method of claim 2,
When backwashing the filter medium layer 140, a nozzle unit 130 connected to a second main pipe 190 equipped with a fifth valve 191 for injecting air or backwashing water may be connected to the second inclined plate 120. Filtration device using solar energy, characterized in that further provided between the filter medium layer 140.
The method of claim 2,
When backwashing the filter material layer 140, the filtering device using solar energy, characterized in that the pressing member 160 is further provided on the first inclined plate 110 for pressurizing the backwashing water.
The method of claim 4, wherein
The pressing member 160 is made of a material capable of expansion and contraction having a predetermined size,
A pressing member fixing part 163 positioned on the pressing member 160 to fix the pressing member 160 to the filtration apparatus main body 100; A pressing member moving part 164 positioned below the pressing member 160 vertically moving to be in close contact with the inner wall of the filtering device main body 100; And a fluid supply line 161 equipped with a first valve 165 for supplying a fluid to the pressing member 160.
A plurality of water supply holes 121 having a cross-sectional area increasing from a central portion to an outer portion thereof so that the raw water for filtration introduced into the first main pipe 180 may be uniformly supplied to the surface of the filter medium layer 140. Filtration device using solar energy, characterized in that further provided on the inclined plate (120) surface.
The method of claim 5,
Filtration device using solar energy, characterized in that the first inclined plate 110 is further provided with a water level sensor 101 for determining whether the pressing member 160 is expanded.
The method of claim 3,
At a predetermined position of the first main pipe line 180, a first auxiliary pipe line 181 for discharging the backwash wastewater of the filter medium layer 140 to the outside, and a second auxiliary line communicating with the second main pipe line 190. Filtration device using solar energy, characterized in that the pipe 182 is further provided.
The method of claim 2,
The filter medium layer 140 is a filtration device using solar energy, characterized in that the filter medium consisting of a multi-layer of small particle diameter is filled with a low water.
In the operating method using a filtration device using the solar energy of any one of claims 1 to 8,
S-1 step of performing a filtration process by supplying the raw water for filtration to the first main pipe 180 for a predetermined time;
S-2 step of stopping the supply of the raw water for filtration;
Performing the washing of the filter medium layer 140 with the air and the filtered water and discharging the generated backwash waste water; And
Method for operating a filtration device comprising the step of performing the steps S-1 to S-3 repeatedly.
The method of claim 9,
The S-3 step,
Measuring the water level on the first inclined plate 110 with a water level sensor 101; And
If the measured water level is lowered below a predetermined range, further comprising the step of inflating the pressure member 160 by supplying a fluid to the fluid supply line 161,
In the step S-1 of supplying the raw water for filtration to the first main pipe 180 for a predetermined time, the fluid discharge pipe 162 is opened to further shrink the pressing member 160, characterized in that it further comprises Operation method of filtration device using solar energy.

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