Water treatment apparatus comprising a secondary filter means

Abstract

Disclosed is a water treatment supply device configured with a secondary filter, including: a filter tank having a cover on an upper portion and an internal partition wall and an internal wall inside, thereby for injecting primary treated water and discharging secondary treated water; a filter configured with a secondary filter including a screen filter for filtering foreign substances in the primary treated water, a stainless steel mesh filter for filtering foreign substances in the secondary treated water passing through the screen filter, and a secondary filter having a stainless steel perforated mesh inside for supporting the stainless steel mesh filter; a cleaning device including a first cleaning portion for removing foreign substances attached to the screen filter and a second cleaning portion for removing foreign substances attached to the stainless steel mesh filter; and a driving device for moving the first cleaning portion and the second cleaning portion in an up-and-down direction, wherein the first cleaning portion moves along with the second cleaning portion in the up-and-down direction by connecting the driving device with the second cleaning portion.

Description

Technical Field

[0001] This invention relates to a treated water supply device equipped with a secondary filter, and more specifically, to a treated water supply device equipped with a secondary filter, which is used to supply a stable sample to an influent (raw water) measuring instrument of a sewage and wastewater treatment plant through a screen filter and a secondary filter, and can supply secondary treated water by filtering out foreign matter from the primary treated water through the screen filter and the secondary filter. Background Technology

[0002] Traditionally, various filtration devices are used to obtain treated water by removing impurities from raw water. These existing filtration devices are characterized by using filter screens to filter raw water and remove impurities attached to the front or back of the filter, thereby maintaining filtration performance.

[0003] However, a problem with traditional filtration devices is that the filtration efficiency of the filter screen decreases rapidly when foreign objects adhere to or accumulate on it. In particular, when foreign objects clog the filter screen's pores, raw water cannot pass through the screen, resulting in a reduction in the supply of treated water, which may even cause the entire filtration device to stop operating.

[0004] The primary existing approach to addressing these issues is to stop the filtration system, remove the filter screens from the unit, and then clean or replace them individually. However, this method requires a temporary halt to the filtration system, making a continuous supply of treated water difficult. Furthermore, the process of removing and cleaning the filter screens is cumbersome, demanding significant manpower and time. Additionally, the shutdown of the filtration system and the management of the filter screens increase maintenance costs.

[0005] Existing technical documents

[0006] Patent documents

[0007] (Patent Document 1) Republic of Korea Patent Registration No. 10-2025388 (Registered on September 19, 2019)

[0008] (Patent Document 2) Republic of Korea Patent Registration No. 10-1689773 (registered on December 20, 2016) Summary of the Invention

[0009] Technical issues

[0010] Accordingly, the present invention was invented to solve the above-mentioned problems, and its purpose is to provide a treated water supply device with a configuration of a secondary filter having the following features: the device continuously supplies treated water based on the up-and-down movement of a cleaning device while cleaning foreign matter adhering to the primary and secondary treated water on the filter, thereby improving the secondary treated water supply efficiency.

[0011] In addition, a treated water supply device with a configuration of a secondary filter is provided, wherein the filtration device for filtering foreign matter in the primary treated water is implemented by a screen filter and a secondary filter.

[0012] In addition, a treated water supply device with a configuration of a secondary filter is provided, which improves the cleaning effect of the secondary filter by combining the pleated structure of the secondary filter for increasing the filtration area with the operation of the cleaning device, thereby providing high-quality treated water.

[0013] In addition, a water supply device for a secondary filter is provided, which generates an air bubble flow from inside the secondary filter by using an air jet hose to not only remove foreign matter attached to the secondary filter, but also homogenize the foreign matter, thereby preventing clogging caused by foreign matter in the secondary filter during the filtration process and improving the filtration efficiency of foreign matter.

[0014] Furthermore, the present invention aims to provide a treated water supply device with a configuration of a secondary filter, wherein the supply device, in order to confirm the water quality of the treated water, draws in a sample from inside the secondary filter and supplies the treated water with measurable amounts of TOC (Total Organic Carbon), TN (Total Nitrogen), and TP (Total Phosphorus), thereby enabling a quantitative assessment of the degree of nutrient and organic pollution in the treated water.

[0015] However, the technical problem to be solved by the present invention is not limited to the technical problem described herein, and those skilled in the art will clearly understand from the following description other technical problems not mentioned.

[0016] Technical solution

[0017] To achieve the aforementioned objective, a treated water supply device with a secondary filter according to an embodiment of the present invention includes: a filter tank having a cover on its upper part and a partition wall and an inner wall disposed inside, for injecting primary treated water and discharging secondary treated water; a filter comprising a secondary filter including a screen filter for filtering foreign matter in the primary treated water, a stainless steel mesh filter for filtering foreign matter in the secondary treated water passing through the screen filter, and a secondary filter having a stainless steel perforated mesh disposed inside to support the stainless steel mesh filter; a cleaning device including a first cleaning section for removing foreign matter attached to the screen filter and a second cleaning section for removing foreign matter attached to the screen filter; and a driving device for moving the first cleaning section and the second cleaning section in a vertical direction, wherein the first cleaning section moves together with the second cleaning section in a vertical direction by connecting the driving device to the second cleaning section.

[0018] Invention Effects

[0019] This invention improves the efficiency of secondary water supply by continuously supplying treated water while cleaning foreign matter adhering to the primary and secondary treated water on the filter device through the up-and-down movement of the cleaning device.

[0020] Furthermore, in this invention, the cleaning effect of the secondary filter is improved by combining the pleated structure of the secondary filter used to increase the filtration area with the action of the cleaning device, thereby providing high-quality treated water.

[0021] Furthermore, the present invention maximizes the cleaning effect of the screen filter and the secondary filter by cleaning the screen filter and the secondary filter through the first and second cleaning sections that move in the same direction, thereby providing high-quality treated water.

[0022] In addition, by using an air jet hose to generate an air bubble flow from inside the secondary filter, the present invention not only removes foreign matter attached to the secondary filter, but also homogenizes the foreign matter, thereby preventing clogging caused by foreign matter in the secondary filter during the filtration process, and improving the filtration efficiency of foreign matter.

[0023] In addition, in order to confirm the water quality of the treated water, the present invention draws in samples from inside the secondary filter to measurably supply TOC (Total Organic Carbon), TN (Total Nitrogen), and TP (Total Phosphorus) to the treated water, thereby quantitatively assessing the degree of nutrient and organic pollution in the treated water.

[0024] On the other hand, the effects that can be obtained by the present invention are not limited to those described above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. Attached Figure Description

[0025] Figure 1 This is a block diagram showing the components of a water treatment supply device configured with a secondary filtration unit according to an embodiment of the present invention; Figure 2 This is a side view showing a water treatment supply device with a secondary filter configured according to an embodiment of the present invention; Figure 3 This is a perspective view showing a water treatment supply device with a secondary filtration unit configured according to an embodiment of the present invention; Figure 4 This is a diagram showing the structure of the partition wall and the guide block according to an embodiment of the present invention; Figure 5 It is a three-dimensional view of the interior of a filter tank used to describe a water treatment method; Figures 6a to 6d This is a diagram showing a first cleaning section and a second cleaning section according to an embodiment of the present invention; Figure 7 This is a diagram showing the connection structure between a secondary filter and an acetal resin according to an embodiment of the present invention; Figure 8 This is a diagram showing the structure of a secondary filter according to an embodiment of the present invention; Figure 9 This is a side view showing a water treatment supply device with a secondary filter configuration according to another embodiment of the present invention. Detailed Implementation

[0026] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can readily implement it. However, since the description of the present invention is only for describing embodiments of structure or function, the scope of the present invention should not be construed as being limited to the embodiments described herein. It should be understood that embodiments can be modified in various ways and can have various forms, and thus the scope of the invention should be understood to include equivalents that can realize the technical idea. In addition, the objects or effects presented in the present invention do not mean that a particular embodiment must include all or only these effects, and therefore the scope of the present invention should not be construed as being limited thereto.

[0027] The meanings of the terms used in this invention should be understood as follows.

[0028] Terms such as "first" and "second" are merely used to distinguish one component from others, and therefore the scope of rights should not be limited by these terms. For example, a first component can be named a second component, and a second component can similarly be named a first component. When a component is mentioned as being "connected" to another component, it should be understood as being directly connected to that other component, although other components may exist in between. On the other hand, when a component is mentioned as being "directly connected" to another component, it should be understood as not having other components in between. Furthermore, other expressions describing relationships between components, including phrases such as "between" and "currently between," or "adjacent to" and "directly adjacent to," should also be interpreted in the same way.

[0029] The singular expression should be understood to include multiple expressions unless otherwise defined in the context, but terms such as “including” or “having” should be understood as specifying the presence of a given feature, number, step, action, component, element or composition without pre-excluding the possibility of the presence or addition of one or more other features or numbers, steps, actions, components, elements or compositions.

[0030] All terms herein, unless otherwise defined, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries shall be interpreted as having the meaning consistent with their meaning in the context of the relevant art, and shall not be construed as having an ideal or excessive morphological meaning unless expressly defined herein.

[0031] Water supply treatment unit

[0032] Hereinafter, a water treatment supply device 100 with a secondary filter according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0033] Figure 1 This is a block diagram showing the components of a water treatment supply device with a secondary filtration unit configured according to an embodiment of the present invention. Figure 2 This is a side view showing a water treatment supply device with a secondary filter configured according to an embodiment of the present invention. Figure 3 This is a perspective view showing a water treatment supply device with a secondary filtration unit configured according to an embodiment of the present invention. Figure 4 This is a diagram showing the structure of the partition wall and guide block according to an embodiment of the present invention. Figure 5 This is a three-dimensional view of the interior of a filtration tank used to describe a water treatment method. Figures 6a to 6d This is a diagram showing a first cleaning unit and a second cleaning unit according to an embodiment of the present invention. Figure 7 This is a diagram showing the connection structure between the secondary filter and the acetal resin according to an embodiment of the present invention. Figure 8 This is a diagram showing the structure of a secondary filter according to an embodiment of the present invention.

[0034] Reference Figure 1 One embodiment of the water treatment supply device 100 includes a filter 110, a cleaning device 120, a drive device 130, and a jet pump 140 for filtering primary treated water (A) and secondary treated water (B).

[0035] In one embodiment, primary treated water (A) refers to fluid in which foreign matter is filtered out by a filtration device such as a filter installed in the treated water supply device 100, and secondary treated water (B) refers to fluid in which foreign matter is further filtered out by a filter device 110.

[0036] In another embodiment, the treated water supply device 100 includes a filter tank 101 for filtering primary and secondary treated water (A, B). The filter tank 101 is not specified in the accompanying drawings, but is preferably configured with an outlet for injecting primary treated water (A) and discharging secondary treated water (B) (external supply).

[0037] In one embodiment, the filter device 110 may be configured with: a screen filter 111 for treating foreign matter in the primary treated water (A); and a secondary filter 112 for treating foreign matter in the secondary treated water (B) treated by the screen filter 111.

[0038] In one embodiment, the screen filter 111 is formed in the shape of a plate, and as shown in the figure. Figure 4 As shown, its side and lower sides are fixedly disposed inside the filter tank 101 by being inserted into and joined to the grooves of the partition wall 102 disposed inside the filter tank 101.

[0039] In addition, the screen filter 111 can be inserted into and attached to the partition wall 102 to divide the interior of the filter tank 101 into a first receiving space for primary treated water (A) and a second receiving space for secondary treated water (B).

[0040] In one embodiment, reference is made to Figure 2 The first containment space refers to the space between the screen filter 111 and the inner right wall of the filter tank 101, which contains primary treated water (A) before the screen filter 111 filters out foreign matter. The second containment space refers to the space between the screen filter 111 and the inner left wall of the filter tank 101, which is used to contain secondary treated water (B) that has been filtered by the screen filter 111 and the secondary filter 112.

[0041] In one embodiment, reference is made to Figure 3 The upper part of the filter tank 101 is equipped with a cover 103, as shown in the reference. Figure 5The internal configuration of the filter tank 101 is used to divide the inner wall 104 of the first and second accommodating spaces and the third accommodating space (C).

[0042] In one embodiment, the cover 103 is configured to cover the upper part of the filter tank 101 and may form an opening (not shown) for engaging the cover 113 of the filter device 110 (described later) with the secondary filter 112.

[0043] In one embodiment, the inner wall 104 can divide the third receiving space inside the filter tank 101, the third receiving space being able to discharge foreign matter contained in the secondary treated water (A) that moves from the second receiving space to the first receiving space along the jet flow path 126 of the cleaning appliance 120 described later, generated by the jet pressure generated by the jet pump 140, to the outside.

[0044] In one embodiment, the screen filter 111 may form multiple filter holes (not shown) to filter foreign matter in the treated water (A) in a single pass, and as a specific example, this is achieved by using 100 Mesh SUS (stainless steel mesh with a filter hole diameter of 150 μm).

[0045] Furthermore, if the filter pore size of the screen filter 111 is too large, the treated water will contain a large number of foreign objects, making the treated water difficult to use; if the filter pore size is too small, the filtration time will be longer. Therefore, the filter pore size is set with priority consideration of the operating environment of the treated water supply device 100, that is, taking into account the state of the primary treated water (A) used, the driving time, the required treatment quantity, etc.

[0046] In one embodiment, after the primary treated water (A) is supplied to the filter tank 101, foreign objects larger than the filter hole diameter of the screen filter 111 cannot pass through and can be filtered. Foreign objects smaller than the filter hole diameter can move to the second containment space together with the generated secondary treated water (B) when they pass through the filter tank of the screen filter 111.

[0047] In one embodiment, the secondary treated water (B) is preferably filtered by a secondary filter 112 in a second containment space after passing through a screen filter 111.

[0048] In one embodiment, the secondary filter 112 includes: an outer stainless steel mesh filter 112a for filtering foreign matter from the secondary treated water (B) passing through the filter holes; and a stainless steel perforated mesh 112b disposed inside the stainless steel mesh filter 112a.

[0049] In one embodiment, the stainless steel mesh filter 112a can form multiple filter holes (not shown) to filter foreign matter in the secondary treated water (B) with stainless steel wire mesh. As a specific example, it is achieved by using 100Mesh SUS (stainless steel metal mesh with a filter hole diameter of 150 μm).

[0050] At this time, because the foreign matter contained in the secondary treated water (B) re-aggregates in the secondary treated water (B) and the particle size increases, it cannot pass through the filter holes. Therefore, the diameter (or size) of the filter holes of the stainless steel mesh filter 112a and the filter holes of the screen filter 111 should be set to be the same.

[0051] Furthermore, when the filter aperture size is too large, the stainless steel mesh filter 112a will contain a large amount of foreign matter in the treated water, making it difficult to utilize the treated water. Conversely, when the filter aperture size is too small, the filtration time will be very long. Therefore, it is preferable to set the filter aperture size by taking into account the operating environment of the treated water supply device 100, namely the state of the secondary treated water (B) used, the driving time, the required treatment quantity, etc.

[0052] In addition, such as Figure 7 and Figure 8 As shown, because the stainless steel mesh filter 112a has multiple pleats and concave pleats inside, it has a pleated structure that ensures both the outer and inner diameters, thereby increasing the filtration area for filtering foreign matter in the secondary treated water (B).

[0053] To increase the filtration area of ​​the stainless steel mesh filter 112a, in one embodiment of the pleated structure, the outer diameter of the stainless steel mesh filter 112a is... 30mm, inner diameter is The outer diameter is 20mm and the length is 195mm. As a comparative example, a stainless steel mesh filter without a pleated structure can have the same outer diameter and length, but since it lacks an internal core space, it does not have a separate inner diameter. In one embodiment, the stainless steel mesh filter 112a, due to the multiple convex and concave pleats internally, can increase the filtration surface area for foreign objects by more than three times compared to a stainless steel mesh filter without a pleated structure of the same dimensions. For example, if the 195mm long stainless steel mesh filter 112a is pleated with a 1mm pitch, the actual unfolded length is approximately 400 to 600mm, and the actual filtration area can be increased by more than three times. Furthermore, even with multiple layers of convex and concave pleats, the same outer diameter and length can be maintained, thus maintaining the compatibility and assemblability of the device.

[0054] In one embodiment, a stainless steel perforated mesh 112b is disposed inside the stainless steel mesh filter 112a in a manner that penetrates the stainless steel mesh filter 112a, thereby enhancing the structure of the stainless steel mesh filter 112a and supporting it.

[0055] Additionally, multiple discharge holes can be formed in the stainless steel perforated mesh 112b, which will discharge air bubbles generated by an air jet hose (not shown) located inside the stainless steel perforated mesh 112b through the cover 113 of the filter device 110 (described later) to the stainless steel mesh filter 112a.

[0056] In one embodiment, when the secondary treated water (B) passes through the filter holes of the stainless steel mesh filter 112a, foreign matter passing through the filter holes of the screen filter 111 can be filtered out, thereby converting it into water quality that can be supplied to the outside.

[0057] In one embodiment, as foreign matter adheres to the filter holes of the screen filter 111 and the stainless steel mesh filter 112a, the foreign matter accumulates on the entire surface (surface). If this accumulated foreign matter clogs the filter holes, it leads to low filtration efficiency, thereby failing to provide high-quality secondary treated water (B).

[0058] The cleaning appliance 120 of the embodiment for improving this problem may include a first cleaning section 121, a guide block 122, a connecting section 123, a second cleaning section 124 and a jet flow path 126 in order to provide high-quality secondary treated water (B).

[0059] In one embodiment, the first cleaning unit 121 includes a first brush body 121a and a second brush body 121b, which remove foreign matter attached to the filter holes of the screen filter 111 from the screen filter 111 during the up-and-down movement of the drive device 130 in the upward or downward direction (hereinafter referred to as "up-and-down direction").

[0060] In one embodiment, such as Figure 2 , 3 As shown in Figure 5, the first brush body 121a is located in the first receiving space, and the second brush body 121b is located in the second receiving space.

[0061] In one embodiment, such as Figure 6a As shown, the first brush body 121a and the second brush body 121b can have an insertion hole 1212 formed on their upper parts so that they can be connected to each other by the connecting part 123.

[0062] In addition, such as Figure 6a and Figure 6cAs shown, the first brush body 121a may have a plurality of first brushes 1211a and second brushes 1211b disposed at its lower part for removing foreign objects attached to the front of the screen filter 111 facing the first receiving space.

[0063] In addition, such as Figure 6a and Figure 6c As shown, the second brush body 121b may have a plurality of first brushes 1211a and second brushes 1211b arranged at its lower part for removing foreign objects attached to the back of the screen filter 111 facing the second receiving space.

[0064] In addition, such as Figure 6a and Figure 6c As shown, the second brush body 121b can be connected to the second cleaning part 124 by a fastening device, so that the second cleaning part 124 and the first cleaning part 121 can move in the vertical direction.

[0065] In one embodiment, preferably, a plurality of first brushes 1211a and second brushes 1211b are disposed in the first brush body 121a and the second brush body 121b. The first brush body 121a and the second brush body 121b are in close contact with the screen filter 111 through the connecting part 123, so that foreign objects attached to the screen filter 111 can be removed during the up and down movement of the first brush body 121a and the second brush body 121b.

[0066] In addition, the plurality of first brushes 1211a are made of a flexible first material (e.g., PE, etc.) and can form cylindrical brush bristle tufts for removing foreign objects attached to the screen filter 111.

[0067] In addition, compared with the first material of the first brush 1211a, the plurality of second brushes 1211b are made of a rigid second material (e.g., SUS (stainless steel)) and can be formed into cylindrical brush bristles for removing foreign matter attached to the screen filter 111.

[0068] In addition, multiple first brushes 1211a and second brushes 1211b can form brush bristle tufts with the same or different diameters from each other.

[0069] Not only that, such as Figure 6b As shown, multiple first brushes 1211a and second brushes 1211b are arranged vertically on the first and second brush bodies 121a and 121b, so that when the first and second brush bodies 121a and 121b are repeatedly moved vertically by the drive device 130, foreign objects can be repeatedly removed from the same position of the screen filter 111 by different brush bristles.

[0070] That is, during the repeated up-and-down movement of the first and second brush bodies 121a and 121b by the drive device 130, the first cleaning unit 121 can remove foreign matter attached to the screen filter 111 by means of the flexible first brush 1211a and the rigid second brush 1211b, based on the composite cleaning effect that cannot be obtained by brush bristles made of a single material.

[0071] In one embodiment, such as Figure 5 As shown, the guide blocks 122 are arranged in pairs and opposite each other inside the filter tank 101, thereby dividing the first and second accommodating spaces together with the partition wall 102.

[0072] In addition, a pair of guide blocks 122 can provide a vertical movement guide path for the first and second brush bodies 121a and 121b connected by the connecting part 123.

[0073] In one embodiment, the first and second brush bodies 121a, 121b can remove foreign matter attached to the screen filter 111 by moving in the vertical direction along the guide path of the support block 122 by contacting the side portion with the inner side of the guide block 122.

[0074] In one embodiment, the connecting portion 123 includes an elastic member 1231 and a connecting rod 1232 that are inserted into an insertion hole 1212 formed on the upper part of the first and second brush bodies 121a, 121b.

[0075] In one embodiment, the elastic member 1231 is configured in multiple ways to maintain the spacing between the first and second brush bodies 121a, 121b, and can support and push the first and second brush bodies 121a, 121b.

[0076] like Figure 6a As shown, this elastic member 1231 may include: a spring having tension (tension or compression); a bolt for adjusting the tension of the spring; and a nut fixed to one end of the bolt, wherein the tension of the spring can be adjusted by adjusting the distance between the bolt and the nut.

[0077] In one embodiment, the connecting rods 1232 are configured in multiple ways, and as follows: Figure 6a As shown, the first and second brush bodies 121a and 121b can be connected so that the first and second brush bodies 121a and 121b can move in the vertical direction with the same degree of movement and speed via the drive device 130.

[0078] In addition, the connecting rod 1232 can pass through the first brush body 121a or the second brush body 121b in order to adjust the distance between the first and second brush bodies 121a and 121b by means of the elastic member 1321. In one embodiment, one end can pass through the first brush body 121a.

[0079] That is, the insertion hole 1212 through one end of a plurality of connecting rods 1232 in at least one of the first brush body 121a and the second brush body 121b may be formed differently from the other brush body, and an inlet (not shown) may be formed in the other brush body for introducing the connecting rod 1232 at the other end.

[0080] In one embodiment, when the second cleaning unit 124 moves together with the first cleaning unit 121 in the vertical direction, it can remove foreign matter attached to the filter holes of the stainless steel mesh filter 112a from the stainless steel mesh filter 112a.

[0081] In addition, the second cleaning part 124 can be fastened to the first brush body 121a or the second brush body 121b through an insertion hole 12121 formed in the lower part of the first brush body 121a or the second brush body 121b in order to move in the vertical direction with the same degree of movement and speed as the first cleaning part 121. In one embodiment, it can be fastened to the second brush body 121b located in the second receiving space.

[0082] In addition, such as Figure 5 , Figure 6a and Figure 6c As shown, the second cleaning unit 124 may include a plurality of third brushes 124b located below the through hole 124a in order to remove foreign matter from the through hole 124a and the filter hole of the stainless steel mesh filter 112a during movement in the vertical direction.

[0083] In one embodiment, the plurality of third brushes 124b may be made of a flexible first material (e.g., PE) in order to remove foreign matter attached to the stainless steel mesh filter 112a.

[0084] On the other hand, the cover 113 constitutes the filter device 110 and may be made of a specific material (e.g., acetal resin), and has an opening (not shown) formed in the cover 103 so that it can be combined with the upper part of the secondary filter 112.

[0085] Additionally, cover 113 may include: a first hole 113a into which an air jet hose (not shown) is inserted to remove foreign matter adhering to stainless steel mesh filter 112a based on air bubbles; and a second hole 113b into which a sample suction hose (not shown) is inserted to collect a secondary treated water (B) sample containing filtered foreign matter through stainless steel mesh filter 112a, wherein there may be more than one first hole 113a and second hole 113b.

[0086] Here, after the air jet hose (not shown) is inserted into the stainless steel perforated mesh 112b through the first hole 113a, air bubbles are generated inside the stainless steel perforated mesh 112b, thereby causing foreign objects to be removed from the stainless steel mesh filter 112a and homogenizing the foreign objects. Therefore, it prevents clogging caused by foreign objects in the stainless steel mesh filter 112a during the filtration process, improves the filtration efficiency of foreign objects, and allows the sample suction hose (not shown) to easily suck up the sample as tertiary water through the secondary filter 112.

[0087] In addition, the air jet hose (not shown) can maximize the foreign matter filtration efficiency of the secondary treated water (B) based on the stainless steel mesh filter 112a by generating flow in the secondary treated water (B) contained in the second containment space.

[0088] Additionally, the sample suction hose (not shown) is connected to various sample measuring instruments (not shown) for measuring TOC (Total Organic Carbon), TN (Total Nitrogen), and TP (Total Phosphorus) in the secondary treated water (B), and after being inserted into the stainless steel perforated mesh 112b through the second hole 113b, the secondary treated water (B) sample located in the stainless steel perforated mesh 112b can be suctioned.

[0089] Here, the sample measuring instrument is a measuring instrument for the inflow water (source water) of sewage and wastewater treatment plants.

[0090] On the other hand, when the sample aspiration tubing needs to be composed of first and second sample aspiration tubing for measuring TN / TP (total nitrogen & total phosphorus) and TOC (total organic carbon), the second hole 113b is preferably configured as a plurality of holes.

[0091] In one embodiment, the jet flow path 126 can provide a path for the secondary treated water (B) that is moved by pressure from the jet pump 140 into the screen filter 111.

[0092] In addition, such as Figure 2As shown, considering the connection structure with the jet pump 140 disposed on the bottom surface of the filter tank 101, the jet flow path 126 is preferably formed in the lower part of the second brush body 121b.

[0093] The secondary treated water (B) sprayed from this jet flow path 126 removes foreign matter attached to the screen filter 111 and moves to the first containment space, where it mixes with the primary treated water (A), thereby causing an overflow in the first containment space and inducing the foreign matter in the first containment space to be discharged to the outside through the third containment space.

[0094] In one embodiment, the drive unit 130 includes an electric cylinder 131 for controlling the up-and-down movement of the first cleaning section 121 and the second cleaning section 124.

[0095] In one embodiment, the electric cylinder 131 may be an actuator that controls the degree and speed of movement of the first cleaning section 121 and the second cleaning section 124 in the vertical direction based on electrical control.

[0096] In addition, such as Figure 6a As shown, the electric cylinder 131 is connected to the first and second brush bodies 121a and 121b by a pin and a fixing hole (not shown) that are not penetrated by a specific component in the insertion hole 1212 formed in the upper part of the first and second brush bodies 121a and 121b, thereby controlling the degree and speed of movement of the first cleaning section 121 and the second cleaning section 124 in the vertical direction.

[0097] In one embodiment, the jet pump 140 creates a negative pressure (vacuum) at the pump inlet to draw in secondary treated water (B) from the second containment space, and then creates a positive pressure at the pump outlet to move the secondary treated water (B) to the jet flow path 126.

[0098] In one embodiment, such as Figure 6b As shown, the jet flow path 126 can be formed together with the first and second brushes 1211a and 1211b in the lower part of the second brush body 121b.

[0099] In addition, such as Figure 6b As shown, the jet flow path 126 can be divided into a first jet flow path 126a and a second jet flow path 126b, and the first and second jet flow paths 126a and 126b can transport the secondary treated water (B) to the first cleaning section 121.

[0100] In this way, the first cleaning section 121 can spray onto the side of the screen filter 111 facing the secondary treated water (B) discharged from the first and second jet flow paths 126a, 126b during vertical movement, thereby removing foreign matter attached to the screen filter 111.

[0101] However, since foreign matter attached to the screen filter 111 can pass through... Figure 6b The first and second brushes 1211a and 1211b shown are detached, so the jet pump 140 and jet flow path 126 can be omitted in the configuration of the water supply device 100.

[0102] On the other hand, the water treatment supply device 100 is not limited to the form of the embodiment, such as Figure 9 As shown, another embodiment (modified example) can also be implemented to homogenize the sludge and foreign matter in the secondary treated water (B) that has settled inside the secondary filter 112.

[0103] Figure 9 This is a side view showing a water treatment supply device with a secondary filter configuration according to another embodiment of the present invention.

[0104] Reference Figure 9 The treated water supply device 100 of the present invention may include an ultrasonic vibrator 150 for homogenizing sludge and foreign matter deposited inside the secondary treated water (B) of the secondary filter 112.

[0105] In another embodiment, when the cover 113 with first and second holes 113a, 113b is referred to as the first cover 113, the ultrasonic vibrator 150 is inserted into the inside of the secondary filter 112 through an opening (not shown) formed on the cover 103 to engage with the open upper part of the secondary filter 112, thereby applying ultrasonic vibration to the sludge and foreign matter in the secondary treated water (B) deposited inside the secondary filter 112.

[0106] That is, in order to insert the ultrasonic transducer 150 into the inner side of the secondary filter 112 during the homogenization of sludge and foreign matter in the secondary treated water (B), the cover 113 is preferably separated from the secondary filter 112.

[0107] This ultrasonic vibrator 150 is not limited to being inserted into the inner side of the secondary filter 112 in the form of a hole penetrating the second cover 114, but is inserted into and combined with the open upper part of the secondary filter 112 through an opening (not shown) formed in the cover 103, thereby applying ultrasonic vibration to the sludge and foreign matter of the secondary treated water (B) settled inside the secondary filter 112.

[0108] However, the following explanation assumes that the ultrasonic vibrator 150 is inserted into the inner side of the secondary filter 112 through the hole in the second cover 114.

[0109] In another embodiment, the ultrasonic transducer 150 can be controlled by a separate control unit (not shown) to apply ultrasonic vibration, and the sludge and foreign matter in the secondary treated water (B) deposited inside the secondary filter 112 can be homogenized by applying ultrasonic vibration.

[0110] As described above, after the secondary treated water (B) sample, which has been homogenized by the ultrasonic vibrator 150 and sludge and foreign matter inside the secondary filter 112, is separated from the secondary filter 112 by the ultrasonic vibrator 150, the secondary treated water (B) sample can be collected through a sample suction hose (not shown) when the first cover 113, which has first and second holes 113a and 113b, is connected through the open upper part of the secondary filter 112.

[0111] In this alternative embodiment of the water supply device 100, the filter tank 101 and the filter fixture 110 and cleaning fixture 120 disposed inside the filter tank 101 can be made of a specific material (e.g., SUS (stainless steel)).

[0112] Comparative example

[0113] The following experiment compares the filtration efficiency of the filters of the present invention, which is a comparative example of the present invention, while the first cleaning section 121 and the second cleaning section 124 move up and down at the same degree and speed of movement. The results are shown in Table 1.

[0114] [Table 1]

[0115] As shown in Table 1, it can be confirmed that the present invention cleans the screen filter 111 and the stainless steel mesh filter 112a while the first cleaning section 121 and the second cleaning section 124 move in the vertical direction with the same degree of movement and speed. Therefore, it has a higher filtration efficiency compared with other comparative examples, and is thus preferably applied to the water supply device 100.

[0116] Accordingly, the detailed description of the preferred embodiments of the invention disclosed herein enables those skilled in the art to implement and practice the invention. While the invention has been described above with reference to preferred embodiments, those skilled in the art will understand that various modifications and alterations can be made to the invention without departing from its scope. For example, those skilled in the art can utilize the invention by combining the components described in the embodiments with each other. Therefore, the invention is not intended to be limited to the embodiments disclosed herein, but rather to be given the broadest scope consistent with the principles and novel features disclosed herein.

[0117] This invention can be embodied in different specific forms without departing from the inventive concept and essential features. Accordingly, the detailed description should not be construed as restrictive in all respects, but should be considered exemplary. The scope of this invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the scope of equivalence of this invention are included within its scope. This invention is not limited to the embodiments disclosed herein, but is given the broadest scope consistent with the principles and novel features disclosed herein. Furthermore, within the scope of the patent claim, embodiments may be constituted in conjunction with claims that are not expressly related by reference, or may be included as new claims according to subsequent amendments to the application.

[0118] Symbol Explanation

[0119] 100: Water treatment supply device; 101: Water filter tank

[0120] 102: Partition wall 103: Cover

[0121] 104: Inner wall; 110: Filter device

[0122] 111: Screen filter; 112: Secondary filter

[0123] 112a: Stainless steel mesh filter; 112b: Stainless steel perforated mesh.

[0124] 113: Cover 113a: First hole

[0125] 113b: Second hole 120: Cleaning equipment

[0126] 121: First cleaning section; 121a: First brush body

[0127] 121b: Second brush body 1211: Brush

[0128] 1211a: First brush 1211b: Second brush

[0129] 1212: Insertion hole; 122: Guide block

[0130] 123: Connecting part; 1231: Elastic component

[0131] 1232: Connecting rod; 124: Second cleaning section

[0132] 124a: Through hole; 124b: Third brush

[0133] 126: Jet path 126a: First jet path

[0134] 126b: Second jet flow path; 130: Drive device

[0135] 131: Electric cylinder; 140: Injection pump

[0136] 150: Ultrasonic vibrator A: Primary water treatment

[0137] B: Secondary treated water; C: Third containment space.

Claims

1. A water treatment supply device equipped with a two-stage filtration unit, characterized in that, include: The filter tank has a cover on top and is equipped with partition walls and an inner wall inside, so as to be used for filling primary treated water and discharging secondary treated water; The filter device consists of a secondary filter, which includes a screen filter for filtering foreign matter in the primary treated water, a stainless steel mesh filter for filtering foreign matter in the secondary treated water passing through the screen filter, and a secondary filter with a stainless steel perforated mesh disposed on its inner side to support the stainless steel mesh filter. Cleaning apparatus, comprising a first cleaning section for removing foreign matter adhering to the screen filter and a second cleaning section for removing foreign matter adhering to the stainless steel mesh filter; and A driving device for moving the first cleaning section and the second cleaning section in the vertical direction. The first cleaning unit moves vertically together with the second cleaning unit by connecting the driving device to the second cleaning unit.

2. The water treatment supply device with a secondary filter according to claim 1, characterized in that, The stainless steel mesh filter has a pleated structure with multiple convex and concave pleats inside.

3. The water treatment supply device with a secondary filter according to claim 1, characterized in that, The cleaning equipment includes: The first cleaning unit includes a first brush body and a second brush body. During the up-and-down movement of the first brush body and the second brush body in the driving device, a plurality of first brushes and second brushes are respectively configured to remove foreign matter attached to the screen filter. A pair of guide blocks are arranged opposite each other inside the filter tank to divide the filter tank into a first receiving space for receiving the primary treated water and a second receiving space for receiving the second treated water, together with the partition wall, and provide a vertical movement guide path for the first and second brush bodies by contacting the side portions of the first and second brush bodies with the inner side portions. The connecting part includes an elastic member and a connecting rod inserted into an insertion hole formed in the upper part of the first and second brush bodies; and The second cleaning section is fastened to the first brush body or the second brush body, and during the period of moving up and down at the same degree and speed as the first cleaning section, a plurality of third brushes are configured to remove foreign matter attached to the stainless steel mesh filter.

4. The water treatment supply device with a secondary filter according to claim 3, characterized in that, In the main bodies of the first and second brushes, the plurality of first brushes and second brushes are respectively arranged in the lower part. The plurality of first brushes are made of a soft first material and form brush bristle tufts to remove foreign matter adhering to the screen filter. The plurality of second brushes, compared to the first material, are made of a rigid second material and are formed into brush bristles to remove foreign matter adhering to the screen filter.

5. The water treatment supply device with a secondary filter according to claim 4, characterized in that, The plurality of first and second brushes are arranged vertically on the main body of the first and second brushes.

6. The water treatment supply device with a secondary filter according to claim 2, characterized in that, The filtration device includes a cover that forms an opening through the cover and combines with the upper part of the secondary filter to form one or more first holes for inserting an air jet hose and second holes for inserting a sample inhalation hose.

7. The water treatment supply device with a secondary filter according to claim 6, characterized in that, After the air jet hose is inserted into the stainless steel perforated mesh through the first hole, air bubbles are generated inside the stainless steel perforated mesh, thereby causing foreign objects to detach from the stainless steel mesh filter and be homogenized.

8. The water treatment supply device with a secondary filter according to claim 6, characterized in that, The sample suction hose is inserted into the stainless steel perforated mesh through the second hole to draw in the sample of the secondary treated water in order to measure the TOC (Total Organic Carbon), TN (Total Nitrogen), and TP (Total Phosphorus) of the sample.

9. The water treatment supply device with a secondary filter according to claim 3, characterized in that, The plurality of third brushes and the plurality of first brushes are all made of the same material.

10. The water treatment supply device with a secondary filter according to claim 3, characterized in that, The driving device is an electric cylinder that controls the vertical movement and speed of the first and second cleaning sections by means of pins and fasteners connected to the bodies of the first and second brushes.

11. The water treatment supply device with a secondary filter according to claim 1, characterized in that, Also includes: An ultrasonic vibrator is inserted into the inner side of the secondary filter device through the opening formed by the cover, and ultrasonic vibration is applied to the sludge and foreign matter that have settled in the secondary treated water inside the secondary filter device to homogenize the sludge and foreign matter.

Images