KR102519289B1 - Cartridge filter device for collecting rainwater purification treatment - Google Patents

Abstract

The present invention relates to a cartridge filter device for purifying collected rainwater. The cartridge filter device for purifying collected rainwater according to the present invention includes: a cabinet providing an internal space; an inlet pipe guiding collected rainwater into the cabinet; a filter unit that passes and purifies the rainwater induced through the inlet pipe, and comprises a plurality of filter cases separably connected to each other and filter members accommodated in the filter cases, respectively, wherein each filter member includes a first activated carbon layer, a magnesium coating layer having magnesium coated on activated carbon, a silver coating layer having silver coated on activated carbon, and a second activated carbon layer sequentially along the moving path of the rainwater; and an outflow pipe for guiding the rainwater having passed through the filter unit to the outside of the cabinet. According to the present invention, rainwater can be utilized as residential water.

Description

Cartridge filter device for collecting rainwater purification treatment}

In the present invention, the 'Korea Environmental Industry and Technology Institute', an organization that is entrusted with a support project from the Minister of Environment and performs operation and management tasks, is a specialized institution, and GNS Engineering Co., Ltd. is a leading company (the task name is 'heavy metal removal and sterilization function'). It is the result of the commercialization/commercialization support project carried out with the included ICT-based mast rainwater recycling system).

The present invention relates to a cartridge filter device for purifying rainwater, and more particularly, filter cases containing a filter member capable of removing not only impurities contained in rainwater but also microorganisms and heavy metals and exhibiting a filtration function. It relates to a cartridge filter device for purifying collected rainwater with an improved structure so that it can be easily coupled and separated from each other like a cartridge that can be easily replaced.

Water shortages caused by extreme weather, natural disasters, indiscriminate development or population concentration in cities are already approaching as real problems. In particular, in Korea, due to the high road pavement rate, a significant amount of rain does not permeate into the ground and flows down the surface slope to the sea and is not utilized. 2 is concentrated, so floods occur frequently, and in spring, droughts occur, making the water shortage problem even more serious.

As a countermeasure against this water shortage, various methods or policies such as a gray water system that reuses water once used or rainwater storage facilities have been proposed. However, gray water systems and rainwater storage facilities basically require a lot of cost to install, and especially rainwater storage facilities are very large, so they can only be installed in land development districts or new town development areas, for example, in downtown areas or residential areas that have already been formed. is virtually impossible to install. Since the gray water system must be remodeled to apply to existing buildings, it is applicable only to new buildings.

Meanwhile, in recent years, various small-scale rainwater recycling facilities have been proposed to maximize the economic value of discarded rainwater. These facilities include, for example, those that collect rainwater that falls on the roof in a storage tank and use it as cleaning water, landscaping water, or fire fighting water when necessary.

As a technology related to rainwater recycling, a rainwater recycling system for buildings has been disclosed in Korean Patent Registration No. 10-0908095. The disclosed rainwater recycling system includes a collecting tank for precipitating rainwater flowing down from a roof, a storage tank and a treatment tank for receiving, storing, and purifying rainwater after precipitation in the collecting tank, and a mixing tank for mixing active ions in the treatment tank, It consists of a number of pumps and the like.

In addition, the invention of Korean Patent Registration No. 10-1913329, which is one of rainwater purification technologies, relates to a rainwater purification filter cartridge module and a rainwater purification system including the same, which is introduced into the filter cartridge by rotating the filter cartridge by the flow of rainwater The entire filter cartridge can be used for rainwater purification by continuously changing the inflow position of rainwater, and furthermore, the entire filter cartridge can be used for rainwater purification by installing the rainwater purification filter cartridge module horizontally to the ground surface in the pipe. will be.

These conventional technologies are only purified to the extent of removing impurities contained in rainwater, so there is a limit to using rainwater as drinking water or other living water. That is, microorganisms or heavy metals may be included in the process of flowing rainwater, but technical features for removing such contaminants are not disclosed in the prior art.

In addition, according to the prior art, when the filter life is over due to long-term use, the filter needs to be replaced, but there is a problem in that the filter replacement is not performed smoothly.

Domestic Registered Patent Registration No. 10-0908095

The present invention has been made to solve the above problems, and an object of the present invention is that a filter unit for filtering rainwater is composed of a plurality of filter cases in combination, and microorganisms and heavy metals as well as particle-type impurities are removed from each filter case. It is an object of the present invention to provide a cartridge filter device for purifying rainwater collected by applying filter members having different functions, such as filtering, to provide the best ability to purify rainwater.

Another object of the present invention is to provide a cartridge filter device for purifying collected rainwater, which allows a plurality of filter cases in which filter members exhibiting different filtering functions are accommodated to be easily coupled and separated from each other.

Cartridge filter device for collecting rainwater purification treatment according to the present invention for achieving the above object includes a cabinet providing an internal space; An inlet pipe leading collected rainwater into the cabinet; Rainwater induced through an inlet pipe is passed through and purified, and includes a plurality of filter cases detachably connected to each other and a filter member accommodated in each filter case, wherein each filter member is a moving path of rainwater a filter unit sequentially comprising a first activated carbon layer, a magnesium coating layer in which magnesium is coated on activated carbon, a silver coating layer in which silver is coated on activated carbon, and a second activated carbon layer; and an outflow pipe for guiding the rainwater passing through the filter unit to the outside of the cabinet.

A plurality of the filter units are arranged in parallel, and between the inlet pipe and each filter unit, an inlet branch pipe for leading rainwater from the inlet pipe to the filter unit is provided, and between the filter unit and the outlet pipe, each An outflow branch pipe is provided to guide rainwater passing through the filter unit to an outflow pipe, and connecting ducts are further mounted at both ends of the filter unit, and between the inflow branch pipe and the connecting duct, and Between them, it is preferable that an elastically deformable expansion joint is further installed while allowing rainwater to pass through.

In the present invention, a support bracket having through-holes is mounted inside the cabinet, and the filter unit is supported on the support bracket, and both ends thereof pass through the through-holes of the support bracket while covering the connecting duct, and male screws are formed at both ends. A U-clamp, a resilience adjusting nut screwed to the end of the U-clamp, a washer-type member passing through the end of the U-clamp, and a supporting disk supported by the resilient adjusting nut, and provided between the supporting bracket and the supporting disk. , It is preferable to include a spring that is pressed and compressed by the supporting disk, transmits a reaction force corresponding to the compressive force to the supporting disk, and causes the elastic adjusting nut to tension the U-clamp.

Cartridge filter device for collecting rainwater purification treatment according to the present invention having the configuration as described above, the filter member for rainwater purification along the flow direction in which rainwater flows is a first activated carbon layer, a magnesium coating layer, a silver coating layer, and a second activated carbon Composed of layers and arranged sequentially, it is possible to remove not only particle-shaped impurities but also heavy metals and microorganisms, thereby overcoming the limitations of the prior art that could not utilize rainwater as living water, and filter members in a tubular shape Built inside the filter case and configured to detachably connect each filter case to each other, an effect of smoothly replacing only the filter member requiring replacement is derived.

1 is a configuration diagram for explaining a rainwater recycling method.
Figure 2 is a perspective view of a cartridge filter device for collecting rainwater purification treatment according to an embodiment of the present invention.
3 is a view for explaining a coupling relationship between a filter unit employed in an embodiment of the present invention and other components;
4 is an exploded perspective view for explaining a coupling relationship between a filter unit employed in an embodiment of the present invention and other components;
5 is a view for explaining an expansion joint employed in one embodiment of the present invention.
6 is a cross-sectional view showing some configurations of a filter unit employed in one embodiment of the present invention.
7 is an enlarged view of part VII of FIG. 6;
8 is a photograph of a magnesium coating layer and a silver coating layer prepared by this process.
Figure 9 shows an electron microscope image of each activated carbon.

In order to clarify the understanding of the present invention in the following description, descriptions of known techniques for the features of the present invention will be omitted. The following examples are detailed descriptions to aid understanding of the present invention, and it will be natural that they do not limit the scope of the present invention. Therefore, equivalent inventions that perform the same functions as the present invention will also fall within the scope of the present invention.

And, in the following description, the same identification symbol means the same configuration, and unnecessary redundant descriptions and descriptions of known technologies will be omitted. In addition, the description of each embodiment of the present invention below, which overlaps with the description of the background technology of the present invention, will also be omitted.

Prior to the description of the cartridge filter device for collecting rainwater purification treatment according to an embodiment of the present invention, a configuration used with the present embodiment will be described with reference to FIG. 1 so that rainwater can be collected and reused.

1 is a configuration diagram for explaining a rainwater recycling method.

As shown therein, as a configuration for reusing rainwater, an initial rainwater removal device 13, a storage tank 15, and a storage tank 19 are provided together with the filter device according to the present embodiment.

The initial rainwater drainage device 13 is a facility that receives and accommodates rainwater flowing down from the water collecting surface 11 and removes pollutants mixed in the initial rainwater. Initial rainwater is rainwater that fell for 30 minutes immediately after the rain started, or rainwater that filled up 5 mm of rain after the start of the rain. Contaminants carried down in the initial rainwater are removed by various methods and then transferred to the storage tank 15. The storage tank 15 receives rainwater that has passed through the initial rainwater drainage device 13 and supplies it to the filter device 20.

The filter device according to an embodiment of the present invention purifies microorganisms, organic substances, and inorganic substances from rainwater supplied from the storage tank 15 through a purification process in each step. The filter device 20 includes a pump 29, a plurality of filter units 30, a controller 17, and the like, which will be described later.

Rainwater passing through the filter device 20 is stored in the storage tank 19. The user receives the rainwater stored in the storage tank 19 and uses it for various purposes.

Hereinafter, a cartridge filter device for purifying rainwater according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view of a cartridge filter device for collecting rainwater purification treatment according to an embodiment of the present invention, and FIG. 3 is a view for explaining a coupling relationship between a filter unit employed in an embodiment of the present invention and other components, FIG. 4 is an exploded perspective view for explaining the coupling relationship between the filter unit employed in one embodiment of the present invention and other components, and FIG. 5 is a view for explaining the expansion joint employed in one embodiment of the present invention, and FIG. 6 is A cross-sectional view showing a partial configuration of a filter unit employed in one embodiment of the present invention, and FIG. 7 is an enlarged view of part VII of FIG.

As shown in these figures, the cartridge filter device 20 for purifying rainwater according to an embodiment of the present invention includes a cabinet 21, an inlet pipe 25, a filter unit 30, and an outlet pipe 27 made including

The cabinet 21 is an enclosure having a door 21a for maintenance and provides a forwardly open interior space in which the filter unit 30 can be accommodated.

The inlet pipe 25 is a pipe that guides rainwater to the filter unit 30 inside the cabinet 21 . Rainwater stored in the storage tank (15 in FIG. 1) is pressurized into the filter unit 30 via the inlet pipe 25.

The filter unit 30 passes and purifies rainwater induced through the inlet pipe 25, and includes a plurality of filter cases 31 and filter members 36a, 36b, 36c, and 36d. made including

Each of the filter cases 31 is detachably connected to each other, and each of the filter members 36a, 36b, 36c, and 36d is well shown in the dotted line in FIG. 3 and in FIG. 6, the filter Accommodated in a one-to-one correspondence in the case 31, the first activated carbon layer 36a, the magnesium coating layer 36b coated with magnesium on activated carbon, and the silver coating layer 36c coated with silver on activated carbon sequentially along the moving path of rainwater ) and a second activated carbon layer 36d.

Here, the first activated carbon layer 36a can be formed in various ways, but in this embodiment, activated carbon generated by carbonizing a palm shell has an electrical conductivity of 300 μs cm- It is produced by washing it with distilled water three or more times until it becomes 1, and then drying it in an oven at 60 ° C for more than 24 hours.

The magnesium coating layer 36b includes magnesium coated on activated carbon to remove heavy metals contained in rainwater, and the silver coating layer 36c includes silver coated on activated carbon to remove microorganisms contained in rainwater. enable it to be removed.

The outlet pipe 27 serves to guide rainwater passing through the filter unit 30 to the outside of the cabinet 21 .

Cartridge filter device 20 for collecting rainwater purifying treatment according to an embodiment of the present invention having such a configuration includes a filter member for purifying rainwater along the flow direction in which rainwater flows, including a first activated carbon layer 36a and a magnesium coating layer. (36b), a silver coating layer (36c), and a second activated carbon layer (36d), which are sequentially arranged to remove not only particulate impurities but also heavy metals and microorganisms. The advantage of overcoming the limitations of the filter member 36a, 36b, 36c, 36d is built inside the cylindrical filter case 31 and each filter case 31 is detachably connected to each other It has the advantage of being able to smoothly replace only the filter members (36a) (36b) (36c) (36d) requiring replacement by being configured to be able to give.

The configuration for detachably connecting the filter cases 31 can be implemented in various structures, but in this embodiment, it is possible to secure a large sealing force between the filter cases 31, and the vertically arranged When only one of the filter cases 31 is replaced, a configuration is adopted so as not to affect the fixed state of the other filter cases 31 during the replacement process.

That is, each filter case 31 employed in this embodiment includes a flange portion 31a formed at a portion facing an adjacent filter case 31, and sealing between the flange portions 31a as shown in FIG. It is configured to be bolted together with the member 34 interposed therebetween, so that the filter case 31 requiring replacement is unbolted from the other filter case 31 and then drawn forward and the new filter case 31 is replaced with the other filter case. By entering into the empty space without interference with (31), the filter member (36a) (36b) (36c) (36d) to be replaced can be smoothly replaced, and when coupled, a pair of flange parts facing each other ( In the bolting process of 31a), the sealing member 34 can be interposed in a compressed state, so that a large sealing force can be secured even with a simple configuration.

* Composition and manufacturing method of the magnesium coating layer (36b)

Of course, the magnesium coating layer 36b can be implemented in various configurations and methods, but in this embodiment, 130 to 160 parts by weight of silicon dioxide (SiO 2 ) is added to 100 parts by weight of magnesium oxide (MgO) in ultrapure water to form a first mixture. After creating a second mixture by adding activated carbon to the first mixture, the second mixture is hydrothermally treated, filtered, washed several times with distilled water, and dried to coat magnesium and silicon. composed of activated carbon.

More specifically, the manufacturing process of magnesium and silicon-coated activated carbon is as follows.

(1) 33g of MgO and 48g of SiO2 are added to 50mL of ultrapure water to create a first mixture.

(2) After that, the first mixture is continuously stirred until a white magnesium silicate gel is produced.

(3) Then, 20 g of the prepared activated carbon described above is added to the first mixture to produce a second mixture.

(4) The second mixture is stirred at room temperature of 24±1° C. at 150 RPM for 1 hour using a magnetic stirrer.

(5) Thereafter, the second mixture was transferred to an autoclave and subjected to hydrothermal treatment at 150° C. for 10 hours.

(6) Then, the second mixture was filtered using a 045 μm qualitative filter paper, washed three or more times with distilled water, and then dried at 60° C. for 24 hours.

*About the composition and manufacturing method of the silver coating layer 36c

Of course, the silver coating layer 36c can be implemented in various configurations and methods, but in this embodiment, 0.14 to 0.16 g of silver nitrate per 100 mL of water is dissolved to create a third mixture, and the third mixture contains the water A fourth mixture was formed by mixing 8 to 12 g of activated carbon per 100 mL, and sodium borohydride (NaBH4) was added to the fourth mixture.

More specifically, the manufacturing process of silver-coated activated carbon is as follows.

(1) 0.158 g of silver nitrate (AgNO3) was dissolved in 100 mL of water to produce a third mixture, which was a silver nitrate solution.

(2) 10 g of activated carbon was added to the third mixture and stirred for 24 hours to produce a fourth mixture.

(3) Thereafter, the activated carbon is washed with water to remove unabsorbed residual silver nitrate.

(4) 100mL of a 0.2M sodium borohydride (NaBH4) solution is added to the fourth mixture to reduce the silver nitrate coated on the activated carbon to silver particles. After adding the sodium borohydride solution to the fourth mixture, the mixture is maintained for 24 hours or longer.

(5) After that, the sodium borohydride remaining in the fourth mixture is washed with water and then dried for use.

8 is a photograph of a magnesium coating layer and a silver coating layer prepared by this process, and FIG. 9 shows an electron microscope image of each activated carbon.

8 and 9, 'PSAC' refers to activated carbon produced by carbonizing a palm shell, and 'Mg/Si-PSAC' refers to activated carbon coated with magnesium and silicon. 'Ag-PSAC' refers to silver-coated activated carbon.

In FIG. 9, PASC is an image confirming the pore structure of simple activated carbon, Mg/Si-PSAC is an image confirming the magnesium compound coated on the activated carbon surface by hydrothermal treatment, and Ag-PSAC is an image confirming the reduction process. It is an image that can confirm silver coated on the surface of activated carbon through

The magnesium coating layer 36b and the silver coating layer 36c have been described above.

In the following, the filter unit 30, the inlet branch pipe 25a, the outlet branch pipe 27a, the connecting duct 35, and the expansion joint 40 employed in this embodiment will be described in detail.

A plurality of filter units 30 employed in this embodiment are arranged in parallel, and a plurality of filter cases 31 provided in each filter unit 30 are arranged in series with each other.

The inlet branch pipe 25a is formed in plurality and is connected to the inlet pipe 25, and is disposed between the inlet pipe 25 and each filter unit 30 to filter rainwater from the inlet pipe 25. It serves to lead to the unit 30. Here, a pump 29 is mounted on the inlet pipe 25, and the pump 29 pumps rainwater and sends it to the filter unit 30, which is controlled by a controller.

Also, the inlet branch pipe 25a is a flexible tube connected to the expansion joint 40 at the bottom of the filter unit 30. A first valve 25c is installed in each inlet branch pipe 25a. The first valve 25c controls the flow rate of rainwater passing through the inflow branch pipe 25a.

The outflow branch pipe 27a is formed in plurality and is connected to the outflow pipe 27, and is disposed between the filter unit 30 and the outflow pipe 27, and rainwater passing through each filter unit 30 It serves to guide the outflow pipe (27).

The end of the outflow branch pipe 27a is connected to the expansion joint 40 at the top of each filter unit 30. Rainwater passing upward through the expansion joint 40 is collected in the outflow pipe 27 via the outflow branch pipe 27a. A second valve 27c is installed in each outflow branch pipe 27a. The flow rate of rainwater discharged through the second valve may be adjusted.

In this embodiment, connecting ducts 35 are further mounted on both ends of the filter unit 30, and between the inlet branch pipe 25a and the connecting duct 35, the connecting duct 35 and the outlet branch pipe 27a. Between the ), the elastically deformable expansion joint 40 passing through the rainwater is configured to be further installed.

The expansion joint 40 makes it possible to suppress breakage of the pipe connection portion vulnerable to the wave causing the vibration when vibration occurs around the place where the filter device 20 according to the present embodiment is installed, In the case of replacing the filter case 31 accommodating the filter members 36a, 36b, 36c, and 36d, transmission of shock due to vertical movement to the filter case 31 and the pipe line during the replacement work can be suppressed. This makes it possible to further improve the durability of the product.

In particular, since the filter device 20 according to the present embodiment is mainly used for purifying rainwater, it is operated while installed outdoors even in cold winter, so even when a small shock or vibration occurs, pipe connection There is a concern that the part may be easily damaged, but in this embodiment, the expansion joint 40 is provided to overcome this problem.

In more detail, the expansion joint 40 is described as follows.

That is, as well shown in FIG. 5, the expansion joint 40 includes the first connection duct 41, the second connection duct 43, the built-in spring 49, the receiving duct 45, and the fixing ring ( 47).

The first connecting duct 41 is a pipe fixed to the connecting duct 35 and has a bent and sealed portion 41a at an upper end. The bending and sealing portion 41a is bent 90 degrees outward and then bent 90 degrees downward again to accommodate the seal ring 41c.

The second connection duct 43 is a pipe fixed to the outflow branch pipe 27a and has a hooking jaw 43a bent outward at its lower end. The locking jaw 43a hangs the fixing ring 47 to prevent the fixing ring 47 from falling downward.

The accommodating duct 45 is a cylindrical member covering the bent sealing portion 41a and the locking jaw 43a, and has a fixing ring coupling screw portion 45e on its outer circumferential surface. And, a bent and sealed portion 45a is formed at the lower end of the accommodating duct 45. The bending and sealing portion 45a is a portion in which the lower end of the containment duct 45 is bent 90 degrees inward and then upward again 90 degrees, and has a seal ring 45c inside.

The bending and sealing portion 41a of the receiving duct and the bending and sealing portion 41a of the first connection duct 41 correspond to each other, and (when no external force is applied) are bitten to each other by the action of the built-in spring 49. keep the status quo

The fixing ring 47 is screwed to the fixing ring coupling screw portion 45e and supports the second connection duct 43 in the direction of the arrow k, so that the second connection duct 43 escapes upward by the built-in spring 49. don't do it

The built-in spring 49 is a compression coil spring and elastically supports the first connection duct 41 and the second connection duct 43 in a direction away from each other. The built-in spring 49 is compressed when the connecting duct 35 is pushed up in the direction of the arrow h. In addition, when force is not applied to the connecting duct 35, as shown in FIG. 1, it expands so that the first connecting duct 41 is caught and supported by the bent and closed portion 45a.

In this way, by applying the elastically deformable expansion joint 40 passing rainwater, even if the length of the filter unit 30 increases when the filter case 31 is replaced, the increased length remains at the expansion joint 40. Since it is absorbed, it is not transferred to the outflow branch pipe 27a or the inflow branch pipe 25a.

In addition to the earthquake-resistant design, the present embodiment is configured so that the earthquake-resistant design is reflected even when designing a structure supporting the filter unit 30 in the cabinet 21.

That is, as well shown in the enlarged parts of FIGS. 2 and 3, in this embodiment, the support bracket 23 having a through hole 23b is mounted inside the cabinet 21, and the filter unit 30 ) to the support bracket 23 in an earthquake-resistant manner, a U-clamp 23d, a resilience adjusting nut 23h, a support disk 23g, and a spring are employed.

The support bracket 23 is a straight member fixed horizontally to the rear wall, and two are applied upward and downward. Each support bracket 23 is located at the rear of the connecting duct 35. In addition, as shown in the enlarged portion of FIG. 3, a plurality of through holes 23b are formed in the support bracket 23. The through hole 23b is a hole through which the U clamp 23d is passed.

The U-clamp 23d is a U-shaped member that surrounds the connecting duct 35 and engages the elastic adjusting nut 23h with both ends passing through the through-holes 23b. The U-clamp 23d is a member in which the central portion of a straight round rod having threaded portions 23e (male threads) formed at both ends is bent round. The curvature of the rounded portion is equal to the curvature of the outer circumferential surface of the connecting duct 35. The threaded portion 23e may be formed in the entire longitudinal direction of the U-clamp 23d.

The resilience adjusting nut 23h is a part coupled to the threaded portion 23e and presses the traction spring 23k in the direction of arrow a through the supporting disk 23g. It is a washer-type member in which a hole is formed in the center of the support disk 23g. The end of the U-clamp 23d passes through the central portion of the support disk 23g and then is coupled to the resilience adjusting nut 23h. In some cases, the supporting disk 23g and the elasticity adjusting nut 23h may be welded together.

As shown in the enlarged portion of FIG. 3, the traction spring 23k is a part provided between the support bracket 23 and the support disk 23g, and is pressed in the direction of the arrow a by the support disk 23g . The traction spring 23k is pressed and compressed by the support disk 23g, and transmits a reaction force corresponding to the compression force to the support disk 23g.

That is, the support disk 23g is elastically pressed in the direction of the arrow b. Since the support disk 23g is supported by the elasticity adjusting nut 23h, eventually, the force in the direction of the arrow b is transmitted to the U-clamp 23d. That is, the U-clamp 23d is pulled in the direction of the arrow e indicated in the enlarged portion of FIG. 3 . As a result, the filter unit 30 is elastically supported in the direction of arrow F by the U-clamp 23d, which is stretched in the direction of arrow e.

On the other hand, in this embodiment, at least the filter member (36a) (36b) (36c) (36d) disposed at the lowermost side among the filter members (36a) (36b) (36c) (36d) is placed in the filter case (31). The filter members 36a, 36b, 36c, and 36d include a mesh net 32 for holding and filtering out large particles of foreign matter and a fixing ring 33 for fixing the mesh net 32. It can be firmly fixed in position within the filter case 31 without being separated from the case 31.

Although various embodiments of the present invention have been described above, this embodiment and the accompanying drawings only clearly show some of the technical ideas included in the present invention, and are included in the specification and drawings of the present invention. It will be apparent that all modified examples and specific embodiments that can be easily inferred by those skilled in the art within the scope of the technical idea are included in the scope of the present invention.

11: water collection surface 13: initial rainwater drainage device 15: retention tank
17: controller 19: reservoir 20: filter device
21: cabinet 21a: door 23: support bracket
23b: through hole 23d: U clamp 23e: screw portion
23g: support disk 23h: elasticity adjustment nut 23k: traction spring
25: inflow pipe 25a: inflow branch pipe 25c: first valve
27: outflow pipe 27a: outflow branch pipe 27c: second valve
29: pump 30: filter unit 31: filter case
31a: flange portion 32: mesh network 33: fixed ring
34: sealing member 35: connecting duct 36a: first activated carbon layer
36b: magnesium coating layer 36c: silver coating layer 36d: second activated carbon layer
40: expansion joint 41: first connection duct 41a: bent sealing part
41c: sealing 43: second connecting duct 43a: locking jaw
45: receiving duct 45a: bending sealing part 45c: sealing
45e: fixed ring coupling screw 47: fixed ring 49: built-in spring

Claims (3)

A cabinet providing internal space;
An inlet pipe leading collected rainwater into the cabinet;
Rainwater induced through an inlet pipe is passed through and purified, and includes a plurality of filter cases detachably connected to each other and a filter member accommodated in each filter case, wherein each filter member is a moving path of rainwater a filter unit sequentially comprising a first activated carbon layer, a magnesium coating layer in which magnesium is coated on activated carbon, a silver coating layer in which silver is coated on activated carbon, and a second activated carbon layer; and
An outflow pipe for guiding the rainwater passing through the filter unit to the outside of the cabinet;
A plurality of the filter units are arranged in parallel,
Between the inlet pipe and each filter unit, an inlet branch pipe leading rainwater from the inlet pipe to the filter unit is provided, and between the filter unit and the outlet pipe, rainwater passing through each filter unit is guided to the outlet pipe. An outflow branch pipe is provided,
Connecting ducts are further mounted at both ends of the filter unit,
Between the inlet branch pipe and the connecting duct, and between the connecting duct and the outlet branch pipe, an elastically deformable expansion joint is further installed while passing rainwater,
A pump provided on the inlet pipe and pumping the rainwater through the inlet pipe disposed below the cabinet to the outlet pipe disposed above the cabinet to enable upflow purification of rainwater by the filter unit; Cartridge filter device for collecting rainwater purification treatment, characterized in that consisting of. delete According to claim 1,
Inside the cabinet, a support bracket having a through hole is mounted,
A U-clamp for supporting the filter unit on the support bracket, which surrounds the connecting duct, has both ends passing through the through-holes of the support bracket, and male threads are formed at both ends, and a resilience adjusting nut screwed to the end of the U-clamp, It is a washer-type member that passes through the end of the U-clamp, and is provided between the support disk supported by the elasticity adjusting nut, the support bracket and the support disk, and is pressed and compressed by the support disk, and the reaction force corresponding to the compressive force is applied to the support disk. Cartridge filter device for collecting rainwater purification treatment, characterized in that it comprises a spring that transmits to the spring and causes the elastic adjustment nut to tension the U-clamp.

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