Single-stage filtration system and method for purifying water

Abstract

A single-stage filtration system and method for purifying water are provided. In one embodiment, the water filtration system receives unfiltered water mixed with air into the filtration system through a water inlet hub operably connected to a joint of a filter element. The unfiltered water and air received through the water inlet hub flow into an air inlet channel of the filter element, thereby transferring the unfiltered water and air into the filter element through the air inlet channel and reaching the gap between the carbon rod and the filter element body, thereby filtering the transferred water through the carbon rod, separating the air into bubbles, and discharging the filtered water and bubbles.

Description

Technical Field

[0001] The invention relates to the field of filtration, and in particular to a single-stage filtration system. Background Art

[0002] The single-stage filter system is a filter system with a threaded end cap that opens and closes by moving up and down. To remove the filter bottle, you need to unscrew the filter cartridge. If the bottle and the end cap are screwed too tightly, the bottle will be too tight to remove.

[0003] In the related art, the single-stage filtration system is an external pressure type, that is, the water inlet is located outside the filter element and directly connected to the water inlet connection in the joint. When the pressure is too high, the air in the water passes through the water inlet, forming bubbles, and the bubbles hit the water inlet to produce noise. Summary of the invention

[0004] In one embodiment, a method for purifying water is provided, wherein a water filtration system receives unfiltered water mixed with air into the filtration system through a water inlet junction operably connected to a joint of a filter element, wherein the unfiltered water and air received through the water inlet junction flow into a water inlet channel of the filter element, thereby diverting the unfiltered water and air through the water inlet channel to the filter element to reach the gap between a carbon rod and a filter element body, allowing the diverted water to pass through the carbon rod so as to filter the water and split the air into bubbles, and then discharge the filtered water and bubbles.

[0005] Small air bubbles and water may be discharged via a water outlet junction operably connected to a connector of the filter element.

[0006] In another embodiment, a water filtration system is provided, comprising: a joint, the joint comprising a joint body, the joint body comprising a water inlet cavity, a water outlet cavity, a water inlet joint, a water outlet joint, a connecting flange and a hanging piece, a water inlet junction and a water outlet junction, the water inlet junction comprising a water inlet cavity for receiving unfiltered water, the water outlet junction comprising a water outlet cavity, the water outlet cavity being configured to discharge filtered water. The joint may also include a connecting flange, the connecting flange being configured to connect the joint and the filter element. The connecting flange may be C-shaped. The filter element may be configured to purify unfiltered water and comprises a filter element body, a central tube disposed in the filter element body, a carbon rod, a carbon rod cap and a carbon rod bottom, and an end cap covering the open end of the filter element body, a body sealing ring, a water inlet sealing ring, a water outlet sealing ring, a water inlet cover plate and an end cap covering the open end of the filter element body.

[0007] In another embodiment, the carbon rod of the water filtration system can be configured such that one end of the carbon rod is connected to the carbon rod cap and the other end is connected to the carbon rod bottom, and the carbon rod is further configured in the filter element body such that the outer surface of the carbon rod and the filter element body form a channel for receiving unfiltered water. The channel allows filtered water to enter the water outlet hub.

[0008] In another embodiment, the water inlet hub of the water filtration system may further include a water inlet sealing ring, a first cover plate and a first clamp; the water outlet hub may further include a water outlet sealing ring, a second cover plate and a second clamp.

[0009] In another embodiment, the water inlet connector of the water filtration system is located on the right side of the connector body, and the other end of the water inlet connector includes a water pipe hole, a sealing ring hole and a cover plate hole. The circle of the water pipe hole is connected to the water pipe, the circle of the sealing ring is connected to the sealing ring, and the circle of the cover plate is connected to the outer circle of the cover plate.

[0010] In another embodiment, the filter element of the water filtration system may also include a carbon rod cover connected to the carbon rod, a carbon rod cover sealing ring and a body sealing ring, wherein the carbon rod cover sealing ring is engaged with the carbon rod cover to form a first seal, and the body sealing ring is engaged with the filter element body to form a second seal.

[0011] In another embodiment, the water filtration system has a barrel-shaped body, one end of which has a smaller diameter and the other end has a larger diameter, and the end cap has a cup-shaped structure, one end is open and the other end is closed, wherein the open end is provided with a concave stop connected to a convex stop, and the convex stop is used to weld the body together to form a closed container. Two grooves are provided on the outside of the other end for installing a body sealing ring, wherein the body sealing ring is used to seal the connector and the filter body under pressure and to seal the water filtered by the filter. The bottom of the closed end includes ribs for supporting the end surface of the bottom of the carbon rod.

[0012] The filter element of the water filtration system may further include a water inlet cover plate and a water inlet sealing ring mounted at a connector at one end of the filter element body, wherein the water inlet sealing ring may engage with the water inlet to form a third seal.

[0013] In another embodiment, the water filtration system includes a water inlet cover plate including a central hole and mounted on the central hole of the body, and also includes a welded pipeline welded to the body as a whole. The water inlet cover plate may also include a groove for mounting a water inlet sealing ring.

[0014] The connector of the water filtration system may also include a hanger attached to the top surface of the connector and extending in a direction substantially parallel to the body of the connector in the direction of the filter element. The hanger may also have a hole passing through the hanger.

[0015] The filter element body of the water filtration system may include a male stopper at one end. The end cap may also include an open first side, wherein the first side includes a female stopper configured to be connected to the male stopper of the filter element body; and a substantially covered second side. The covered side of the end cap also includes a slotted cylinder located in the center of the covered side. The end cap also includes a plurality of ribs radiating from the slotted cylinder to the inner edge of the end cap, and the end cap is a cup-shaped structure, one end is open, and the other end is closed, the open end has an arc-shaped female stopper connected to the arc-shaped male stopper of the body, the arc-shaped male stopper of the body is configured to be integrated with the body into a sealed container, and the ribs at the bottom of the closed end are used to support the bottom end surface of the carbon rod. Further, the slotted columnar component at the bottom of the closed end is connected to the center tube and the gap between the water entering the filter element and the carbon rod.

[0016] The female and male ends of the water filtration system can be welded together.

[0017] The connector of the filter element in the water filtration system may have an outer surface, which also includes one or more scalloped flanges configured to connect to a connecting flange in the fitting.

[0018] The connector of the filter element may also include two bosses on the inner surface facing each other.

[0019] The connector of the filter element may also include a plurality of fan-shaped holes for the filtered water to enter the connector.

[0020] Scalloped holes may also be included in the bosses.

[0021] In another embodiment, the water filtration system is configured such that the filter element and the connector flange further include two fan-shaped lugs located below the groove for the locking flange of the filter element, the fan-shaped lugs being used for the axial position of the platform in the filter element and the connector flange.

[0022] The boss of the water filtration system can be welded to the water inlet cover plate of the filter element.

[0023] The water filtration system can be configured such that the carbon rods cause the air mixed into the unfiltered water to break up into small bubbles, which are mixed with the filtered water.

[0024] In a further embodiment, a joint for a water filtration system includes an inlet hub, an outlet hub, and a connecting flange. The inlet hub may be configured to receive unfiltered water through an inlet cavity, and the outlet hub may be configured to discharge filtered water through an outlet cavity.

[0025] The joint may further include a hanger attached to the top surface of the joint and extending in a direction substantially parallel to the body of the joint in the direction of the filter element. The hanger may further include a hole extending through the hanger.

[0026] In a further embodiment, a filter element for a water filtration system may include a filter element body, a central tube disposed in the filter element body, and a carbon rod; one end of the filter element body is open, and the other end is surrounded by a connector having a diameter smaller than that of the rest of the filter element body. The filter element body may also include an end cap covering a first end of the filter element body, a carbon rod cap covering a second end of the filter element body, a carbon rod cap sealing ring operably connected to the carbon rod cap, and a body sealing ring operably connected to the filter element body;

[0027] The carbon rods of the filter are also configured to separate the air in the unfiltered water into small bubbles that are mixed throughout the filtered water.

[0028] It is therefore a primary object of the present invention to facilitate easier installation and removal of filter barrels.

[0029] A further object of the present invention is to reduce the wear on the connector caused by repeated removal of the filter and ensure better sealing.

[0030] A further object of the present invention is to reduce the noise generated by air bubbles hitting the water inlet.

[0031] Other purposes and advantages of the present invention will be explained in part in the following description, and in part will become obvious from the description, or can be learned through the practice of the present invention. The purposes and advantages of the present invention will be realized and obtained through the elements and combinations particularly pointed out in the appended claims.

[0032] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate several exemplary embodiments and aspects of the disclosed filtration systems and methods and, together with the description, serve to explain the principles of the invention.

[0034] Figure 1A is a perspective view of a water filter according to an exemplary embodiment.

[0035] Figure 1B According to an exemplary embodiment Figure 1A Internal cross-sectional view of the water filter shown in .

[0036] Figure 2 is an external view of a connector of a water filter according to an exemplary embodiment.

[0037] Figure 3 is a view of a disassembled filter element of a water filter according to an exemplary embodiment.

[0038] Figure 4 is a cross-section of a joint of a water filter according to an exemplary embodiment.

[0039] Figure 4A is an alternative perspective view of a cross-section of a fitting of a water filter according to an exemplary embodiment.

[0040] Figure 4B is an alternative perspective view of a cross-section of a fitting of a water filter according to an exemplary embodiment.

[0041] Figure 5 is a cross-sectional view of a joint of a water filter according to an exemplary embodiment.

[0042] Figure 6 is a cross-sectional view of a joint of a water filter according to an exemplary embodiment.

[0043] Figure 7 is an alternative view of a cross-sectional view of a fitting of a water filter according to an exemplary embodiment.

[0044] Figure 8 is a view of an internal structure of a joint of a water filter according to an exemplary embodiment.

[0045] Fig. 8A is a view of an internal structure of a joint of a water filter according to an exemplary embodiment.

[0046] Fig. 9 is an external view of the rear portion of a connector of a water filter according to an exemplary embodiment.

[0047] Fig.10 Certain components of a connector for a water filter are shown according to an exemplary embodiment.

[0048] Fig.11 Certain components of a filter cartridge for a water filter according to an exemplary embodiment are shown.

[0049] Fig.12 An end cap of a filter cartridge of a water filter is shown according to an exemplary embodiment.

[0050] Fig.13 A filter element body of a water filter according to an exemplary embodiment is shown.

[0051] Fig.14 An alternative perspective view of a cartridge body of a water filter is shown according to an exemplary embodiment.

[0052] Fig.15 is a cross-section of a joint of a water filter according to an exemplary embodiment.

[0053] Fig.16 A filter element body of a water filter according to an exemplary embodiment is shown.

[0054] Fig.17 is a top view of a connector of a water filter according to an exemplary embodiment.

[0055] Fig.18 is an alternative cross-sectional perspective view of a connector of a water filter according to an exemplary embodiment.

[0056] Fig.19 A cross section of a small cylinder at one end of a filter element of a water filter is shown according to an exemplary embodiment.

[0057] Fig. 20 A cross section of a small cylinder at one end of a filter element of a water filter is shown according to an exemplary embodiment.

[0058] Fig.21 is a cross-section of a joint of a water filter according to an exemplary embodiment.

[0059] Fig. 22 is a pin-point view of a portion of a water filter according to an exemplary embodiment.

[0060] Fig.23 is a cross-sectional view of a water filter according to an exemplary embodiment.

[0061] Fig.24 is a cross-sectional view of a water filter according to an exemplary embodiment.

[0062] Fig.25 is a cross-section of a portion of a water filter according to an exemplary embodiment.

[0063] Fig.26 An end cap is shown with the open portion oriented upward and the closed end oriented downward according to one exemplary embodiment.

[0064] Fig. 27 is a cross-section of a portion of a water filter according to an exemplary embodiment.

[0065] Fig.28 is a cross-section of a portion of a water filter according to an exemplary embodiment.

[0066] Fig.29 is a cross-section of a portion of a water filter according to an exemplary embodiment.

[0067] Fig.30 is a cross-section of a portion of a water filter according to an exemplary embodiment.

[0068] Fig.31 is a cross-section of a portion of a water filter according to an exemplary embodiment.

[0069] Fig.32 is a cross-section of a portion of a water filter according to an exemplary embodiment. DETAILED DESCRIPTION

[0070] Reference will now be made in detail to the exemplary embodiments, which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals will be used throughout the drawings to refer to the same or like parts.

[0071] According to an exemplary embodiment, the water filtration system of the present application may include a connector 100 and a filter element 400, such as Figure 1A and 1B shown. Figure 1B The arrows in the figure represent water flowing through the water filtration system. Unfiltered water enters the joint 100 through the water inlet hub, flows downward through the joint body, enters the filter element 400, passes through the carbon rod cover of the filter element 400, and enters the central tube. When reaching the bottom of the filter element 400, the unfiltered water flows out from the bottom of the central tube in all directions, and then flows upward into the gap between the carbon rod and the filter element body. The unfiltered water enters the carbon rod for filtration, and the air in the water is broken into small bubbles. Then the filtered water and the small bubbles pass through the top of the filter element and enter the joint, and the filtered water leaves the water filtration system through the water outlet hub in the joint.

[0072] like Figure 4 , Figure 4A and Figure 4B As shown, the joint body includes a water inlet hinge 120 and a water inlet cavity 130, through which water flows into the water filtration system. The joint body also includes a water outlet hinge 140 and a water outlet cavity 145, through which filtered water leaves the water filtration system. The joint also includes a connecting flange 155 and a hanging member 150. The water inlet cavity 130 of the joint body is an L-shaped cylindrical cavity. One end of the cavity is connected to the water inlet hinge 120, and the other end is connected to the carbon rod end cap 420 of the filter element 400, and water enters the water inlet cavity 130 through the center hole of the carbon rod end cap 420 of the filter element 400.

[0073] The joint 100 may further include a joint body 105, a water inlet seal ring 125 and a water outlet seal ring 135, cover plates 110a and 110b, and clips 115a and 115b. Figure 2 As shown in FIG. 1 , each sealing ring and cover plate at least plays a role in guiding water.

[0074] The joint 100 may further include a water inlet joint and a water outlet joint. The water inlet joint may be located on the right side of the joint body, and the other end of the water inlet joint includes a water pipe hole, a sealing ring hole and a cover plate hole, wherein the circle of the water pipe hole is connected to the water pipe, the circle of the sealing ring hole is connected to the sealing ring, and the circle of the cover plate hole is connected to the outer circle of the cover plate.

[0075] Figure 3 The structure of the filter element 400 is shown. The filter element 400 includes an end cap 440, a body 405, a carbon rod cap 420, a center tube 435, a carbon rod bottom 430, a carbon rod 415, a body seal ring 410, a water inlet seal ring 445, and a water inlet cover plate 450. When assembling the filter element, the center tube 435 is operably connected to one end of the carbon rod cap 420 and inserted into the center hole of the carbon rod 415, so that the carbon rod cap 420 covers the end of the carbon rod that helps to keep the center tube 435 in place. The carbon rod bottom 430 is placed at the other end. The carbon rod 415 is then set inside the body 405 so that the carbon rod cap 420 enters first. The end cap 440 is connected to the body 405 to keep the carbon rod assembly in place. The body seal ring 410, the water inlet seal ring 445 and the water inlet cover plate 450 are placed on the smaller end of the body 405 to facilitate the operative connection with the joint 100. The sealing ring and the cover plate at least play a role in guiding water.

[0076] The water inlet hinge 120 is located on the right side of the joint body 105, and one end of the water inlet hinge 120 is provided with three stepped holes, such as Figure 5 As shown, that is, water pipe hole 160, sealing ring hole 165 and cover plate hole 170. The circle of water pipe hole 160 is connected to the water inlet pipe 162, the circle of sealing ring hole 165 is connected to the water inlet sealing ring 125, and the circle of cover plate hole 170 is connected to the outer circle of cover plate 110a.

[0077] The water outlet hinge 140 is located on the left side of the joint body 105, and one end of the water inlet hinge is provided with three stepped holes, such as Figure 6 As shown, that is, water pipe hole 175, sealing ring hole 180 and cover plate hole 185. The circle of water pipe hole is connected to water outlet pipe 177, the circle of sealing ring hole 180 is connected to water outlet sealing ring 135, and the circle of cover plate hole 185 is connected to the outer circle of cover plate 110b.

[0078] like Figure 7 As shown, the connecting flange 155 is located at the bottom of the joint body and is a C-shaped structure with two lug flanges 190 and 195. The upper part of the flange is provided with a pair of openings with rectangular protrusions 193a and 193b. The inner plane of the connector flange is attached and connected to the filter element end cover flange.

[0079] The water inlet boss 200 has a barrel-shaped structure and is located in the center of the filter element body. In some embodiments, one end of the barrel-shaped structure has a smaller diameter and the other end has a larger diameter. One end of the water inlet boss 200 is connected to the connector body.

[0080] like Figure 8 and Fig. 8A As shown, the water outlet boss 210 is concentric with the water inlet boss 200, and a hole is provided at the bottom of the water inlet boss 210, which is a part of the water outlet channel 215. One end of the water outlet boss 210 is connected to the water inlet boss 200 of the joint.

[0081] like Fig. 9 As shown, the hanging member 220 is located at the rear of the joint. The hanging member 220 is provided with four bosses 225a, 225b, 225c and 225d located at the back of the hanging member 220, and the four bosses are respectively provided with through holes. The through holes are used to install fastening bolts (not shown) to fix the hanging member.

[0082] like Fig.10 As shown, the water inlet seal ring 125 and the cover plate 110a are respectively installed in the water inlet seal ring hole 165 and the water inlet cover plate hole 170, and the clip 115a is inserted into 110a. The sealing structure formed by the three components is used to seal the casing. The water outlet seal ring 135 and the cover plate 110b are respectively installed in the seal ring hole 180 and the cover plate hole 185, and the clip 115b is inserted into 110b. The sealing structure formed by the three components is used to seal the casing.

[0083] like Fig.11 As shown, the filter element includes an end cover 440, a filter element body 405, a carbon rod cover 420, a center tube 435, a carbon rod bottom 430, a carbon rod 415, a body sealing ring 410, a water inlet sealing ring 445, and a water inlet cover plate 450.

[0084] like Fig.11 and Fig.12 As shown, the end cap 440 is a cup-shaped structure, one end is open and the other end is closed, and the open end is provided with a concave stopper 455, which is connected to the convex stopper of the body. It is used to be welded with the body to form a sealed container, such as Fig.13 As shown in 470. Fig.12 As shown, a rib 460 is provided at the bottom of the closed end for supporting the end surface of the carbon rod bottom 430. A slotted cylinder 465 connected to the center tube 435 is provided at the bottom of the closed end. It is used to allow water to enter the gap between the filter element and the carbon rod 415. The gap formed by the filter element body and the outer surface of the carbon rod forms a channel for unfiltered water. The carbon rod bottom 430 may also have a plurality of grooves on the surface facing the carbon rod. These grooves may be concentric circles.

[0085] The body has a barrel-like structure, with a smaller diameter at one end and a larger diameter at the other end. The convex stopper is welded together with the concave stopper on the end cap to form Fig.13 A closed container at 470.

[0086] The other end has a Fig.14 The two grooves at 475 are used to install the body seal ring 410. The body seal ring is used to seal the connector and the filter element body under pressure and seal the water filtered by the filter element. Fig.15 It is shown at 480 because the groove is installed in the groove on the body.

[0087] like Fig.16 As shown, two fan-shaped bosses are provided at 485 below the groove, and the fan-shaped bosses are locking flanges of the filter element, and the fan-shaped bosses are used to install the filter element on the inner plane flange of the connector to lock the axial position.

[0088] like Fig.17 As shown, the inner cavity is provided with a grid hole 490, and a circular hole is provided at a position with a smaller diameter in the center of the body. Two bosses 500 are arranged on the grid. The grid hole 490 has a fan-shaped structure for filtered water to pass through the connector. Two stepped platforms are provided on the center hole 495.

[0089] exist Fig.18 At 510, the position where the end faces of the filter element flange and the connector flange fit together is shown.

[0090] like Fig.19 As shown, the bottom boss of the center hole is used to connect with the water inlet cover plate ( Fig.19 The upper boss 520 is axially matched with the water inlet cover plate to lock the water inlet cover plate. A welding line for welding with the cover plate 525 is provided between the lower boss and the upper boss 520, and the welding line is used to weld the water inlet cover plate to the boss of the center hole. The fan-shaped hole at 515 is used for filtered water to enter the connector.

[0091] The boss on the grille cooperates with the groove on the water inlet cover to position the circumference of the water inlet cover at Fig. 20 530 of them.

[0092] For example, Fig.21 As shown, water flows into the water inlet hub 120 as shown by the arrows. The axial direction of the water inlet end cap is shown at 240. The bottom weld is shown at 245, and the middle weld line is shown at 250. The outlet connection is shown at 140.

[0093] Fig. 22 The bosses 255a and 255b are used to position the water inlet cover plate at two positions.

[0094] exist Fig.23 and24 In the figure, arrows 531, 532 and 533 indicate the path of water flow. The central circular hole around arrow 532 extends to the inner cavity of the body to form a columnar boss connected to the central tube. The central hole, the water inlet cover plate, the central tube and the slotted cylinder at the bottom of the end cover form a water inlet channel 535, through which unfiltered water 540 passes. Fig.24 The carbon rod in the filter is separated into a gap between the carbon rod and the outer shell. After the unfiltered water enters the carbon rod, it passes through the gap between the carbon rod, the center tube, the carbon rod bottom, the carbon rod cover and the center tube. The filtered water 545 passes through the gap between the body and the grid and is discharged from the joint outlet to form a purified water channel. The carbon rod splits the air into small bubbles.

[0095] The carbon rod cap is installed and attached to the carbon rod by glue, and the central hole of the carbon rod is coaxial with the central tube. The gap formed by the inner core of the carbon rod cap and the outer ring of the central tube is used for the passage of filtered water.

[0096] The outer stopper at the other end of the carbon rod cover cooperates with the inner stopper of the end cover to form a sealing structure with the body to seal the unfiltered water and the filtered water. The carbon rod cover is a disc-shaped structure with a stopper on the outer circle, and the stopper has a center hole. The cavity formed together with the center tube is part of the filtered water channel, such as Fig.25 As shown at 552 in the figure. The sealing structure formed by the carbon rod cover groove, the carbon rod cover sealing ring and the body is used to seal the unfiltered water and the filtered water at 550.

[0097] The carbon rod cover has a disc-shaped structure, and the outer ring is provided with a groove 560, and the groove has a central hole 555, such as Fig.26 The groove 560 is used to install the rubber ring.

[0098] The sealing ring of the carbon rod cover is installed in the groove of the carbon rod cover to form a sealing structure with the inner cavity of the body. The sealing structure is used to seal the unfiltered water and the filtered water. Fig. 27 At 565 in the figure, a rubber ring is installed on the carbon rod cover to seal the unfiltered water and the filtered water.

[0099] One end of the carbon rod is attached to the carbon rod cap, and the other end is attached to the carbon rod bottom. The outer side of the carbon rod and the filter element body form an unfiltered water channel 570, such as Fig.28 The center of the carbon rod and the outer ring of the center tube form an unfiltered water channel 570. The water terminal is shown at 575.

[0100] The carbon rod bottom has a disc-shaped structure with a hole and a boss in the center. The inner cavity of the boss is connected to the outer ring of the center tube. It and the inner cavity of the center tube form a part of the filtered water channel, and the unfiltered water is discharged into the inner cavity of the filter element through the center hole. The carbon rod bottom and the center tube form a water inlet channel for injecting unfiltered water into the cavity of the filter element, such as Fig.29 580 places in total.

[0101] The body sealing ring is installed on the groove of the body to seal Fig.30 The filtered water channel at 585.

[0102] The water inlet cover is installed on the center hole of the main body. The water inlet cover is provided with a welding line and is welded to the main body as a whole. Fig.31 The welding line at 590 is welded to the body.

[0103] The water inlet cover plate is provided with a groove for installing the water inlet sealing ring. The sealing structure formed by the center hole of the other joints is used to seal the water inlet.

[0104] The cover plate is provided with a central hole for water to enter the filter element.

[0105] The water inlet sealing ring is installed on the groove of the cover plate, and the sealing structure formed by the center hole of other joints is used to seal the water inlet of the filter element, such as Fig.32 As shown in 595.

[0106] Although the foregoing embodiments have been described in detail by way of illustration and example for the purpose of clear understanding, it will be apparent to those skilled in the art that certain changes and modifications may be made to the description herein based on the description herein without departing from the spirit or scope of the appended claims. It should also be understood that the terminology used herein is only used to describe specific aspects and is not restrictive, as the scope of the present invention will be limited only by the appended claims.

[0107] Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the patent specification and examples be considered exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0108] It should be noted that, unless the context clearly dictates otherwise, as used herein and in any of the appended claims, the singular forms "one", "an", and "the" include plural referents. It should be further noted that any claim may be drafted to exclude any optional element. Therefore, this statement is intended to serve as a prior basis for the use of exclusive terms such as "only", "only", etc. associated with the use of the reference or "negative" limitation of claim elements. It will be apparent to those of ordinary skill in the art after reading the disclosure of this application that the various aspects described and illustrated herein have discrete components and features that can be easily separated or combined with the features of any other aspects without departing from the scope or essence of this application. Any cited method can be performed in the order of the events cited or in any other order that is logically possible. Therefore, the foregoing only provides illustrative examples. It should be understood that those of ordinary skill in the art will be able to conceive of various arrangements that, although not explicitly described or shown herein, embody the principles of this application and are included in its essence and scope.

[0109] In the present application, the terms "first", "second", etc. are used for descriptive purposes only and should not be interpreted as indicating or implying a relative importance or a certain number of technical features. Therefore, the definition of "first", "second", etc. features may explicitly or implicitly include one or more features. In the specification, unless otherwise specified, "multiple" means two or more. It should also be noted that the terms "installed", "interconnected", "connected", etc. should be understood in a broad sense and may describe, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and / or an internal connection between the internal parts of two elements. A person of ordinary skill in the art can easily understand the specific meaning of the above and similar terms in the context of the present application.

[0110] In addition, all examples and conditional statements cited herein are primarily intended to help readers understand the principles of the present invention and the ideas contributed by the inventors to promote the art, and should be interpreted as not being limited to these specifically cited examples and conditions. In addition, all statements citing the principles and aspects of the present invention and their specific examples herein are intended to cover their structural and functional equivalents. In addition, such equivalents are intended to include currently known equivalents and equivalents developed in the future, that is, any element developed to perform the same function, regardless of structure. Therefore, the scope of the present invention is not intended to be limited to the exemplary configurations shown and described herein.

[0111] In this specification, various preferred embodiments have been described with reference to the accompanying drawings. However, it will be apparent that various other modifications and changes may be made thereto, and additional embodiments may be implemented without departing from the broader scope of any of the following claims. Accordingly, the specification and drawings are to be regarded as illustrative rather than restrictive.

Claims

1. A method for purifying water, comprising: receiving unfiltered water mixed with air into the filtration system through an inlet hub operably connected to a connector of the filter cartridge, wherein the unfiltered water and air received through the inlet hub flow into an inlet channel of the filter cartridge; Introducing unfiltered water and air entering the filter element through the inlet channel into the gap between the carbon rod and the filter element body; passing the introduced water through the carbon rods to filter the water and break the air into bubbles; and Drain the filtered water and air bubbles; The filtration system is a single-stage filtration system for purifying water, comprising: A joint, the joint comprising: a joint body, the joint body comprising a water inlet cavity, a water outlet cavity, a water inlet joint, a water outlet joint, a connecting flange and a hanging piece; an inlet hub including an inlet chamber configured to receive unfiltered water; and a water outlet hub, the water outlet hub comprising a water outlet chamber configured to discharge filtered water, a connecting flange configured to connect the joint and the filter element, wherein the connecting flange is C-shaped; and A filter cartridge configured to purify unfiltered water, the filter cartridge comprising: A filter element body, wherein one end of the filter element body is open and the other end is surrounded by a connector having a smaller diameter than the rest of the filter element body; The center tube, carbon rod, carbon rod cover and carbon rod bottom, body seal ring, water inlet seal ring and water inlet cover plate are located in the filter element body; and An end cap, the end cap covering the open end of the filter element body; The filter element body has a barrel-shaped structure, one end of which has a smaller diameter and the other end of which has a larger diameter; the end cover has a cup-shaped structure, one end of which is open and the other end is closed, and the open end is provided with a concave stop connected to a convex stop, and the convex stop is used to be welded with the filter element body to form a closed container; Among them, two grooves are provided on the outside of the other end for installing the body sealing ring; Wherein, the body sealing ring is used to seal the connector and the filter element body under pressure and to seal the water filtered by the filter element; The bottom of the closed end includes ribs for supporting the end surface of the bottom of the carbon rod; a slotted cylinder is arranged at the bottom of the closed end, which is connected to a central tube for water to enter the gap between the filter element body and the carbon rod.

2. The method according to claim 1, wherein: Small air bubbles and water are discharged through a water outlet hub operably connected to a connector of the filter element.

3. A method for purifying water according to claim 1, wherein: One end of the carbon rod is connected to the carbon rod cap, and the other end is connected to the carbon rod bottom; the carbon rod is arranged in the filter element body so that the outer surface of the carbon rod and the filter element body form a channel for receiving unfiltered water; and The channel allows filtered water to enter the water outlet hub.

4. A method for purifying water according to claim 1, wherein: The water inlet hub also includes a water inlet sealing ring, a first cover plate and a first clamp, and the water inlet sealing ring is engaged with the water inlet hub to form a first seal; the water outlet hub also includes a water outlet sealing ring, a second cover plate and a second clamp, and the water outlet sealing ring is engaged with the water outlet hub to form a second seal.

5. A method for purifying water according to claim 1, wherein: The water inlet joint is located on the right side of the joint body, and one end of the water inlet joint includes a water pipe hole, a sealing ring hole and a cover plate hole; wherein the circle of the water pipe hole is connected to the water pipe, the circle of the sealing ring is connected to the sealing ring, and the circle of the cover plate is connected to the outer circle of the cover plate.

6. A method for purifying water according to claim 1, wherein: The filter element further comprises a carbon rod cover connected to the carbon rod, a carbon rod cover sealing ring engaged with the carbon rod cover to form a first seal, and a body sealing ring engaged with the filter element body to form a second seal.

7. A method for purifying water according to claim 1, wherein: The filter element further comprises a water inlet cover plate and a water inlet sealing ring, wherein the water inlet sealing ring is installed at a connector at one end of the filter element body, and the water inlet sealing ring is engaged with the water inlet of the filter element body to form a third seal.

8. A method for purifying water according to claim 7, wherein: The water inlet cover plate includes a center hole and is installed on the center hole of the filter element body, and the water inlet cover plate further includes a welding pipeline for welding with the filter element body; and wherein, the water inlet cover plate also includes a groove for installing a water inlet sealing ring.

9. A method for purifying water according to claim 1, wherein: The joint further includes a hanging piece attached to the top surface of the joint and extending in a direction parallel to the body of the joint in the direction of the filter element; and the hanging piece further includes a hole penetrating the hanging piece.

10. A method for purifying water according to claim 1, wherein: The filter element body includes a convex stop located at one end; The end cap includes an open first side, the first side includes a concave stopper, and the concave stopper is configured to connect with the concave stopper of the filter element body; and a second side that is covered; Wherein, the covered side of the end cap further comprises a slotted cylinder located in the center of the covered side; The end cap further includes a plurality of ribs radiating from the slotted cylinder toward an inner edge of the end cap; and Among them, the end cover is a cup-shaped structure with one end open and the other end closed, the open end has an arc-shaped concave stopper and a rib, the arc-shaped concave stopper is connected to the arc-shaped convex stopper of the filter element body configured to be integrated with the filter element body into a sealed container, and the ribs located at the bottom of the closed end are used to support the bottom end surface of the carbon rod; the slotted columnar component located at the bottom of the closed end is connected to the center tube to allow water to enter the gap between the filter element and the carbon rod.

11. A method for purifying water according to claim 10, wherein: The concave stopper and the convex stopper are welded together.

12. A method for purifying water according to claim 7, wherein: The outer surface of the connector of the filter element further includes one or more sector flanges, and the sector flanges are configured to be connected to a connecting flange in a joint.

13. A method for purifying water according to claim 12, wherein: The connector of the filter element further comprises two bosses on the inner surface facing each other.

14. A method for purifying water according to claim 13, wherein: The connector includes a plurality of fan-shaped holes for filtered water to enter the connector.

15. A method for purifying water according to claim 14, wherein: The plurality of fan-shaped holes are included in the boss.

16. A method for purifying water according to claim 15, wherein: The filter element and the connector flange further include two fan-shaped lugs located below the groove for the locking flange of the filter element, and the fan-shaped lugs are used for the axial position of the platform in the filter element and the connector flange.

17. A method for purifying water according to claim 16, wherein: The boss is welded to the water inlet cover plate of the filter element.

18. A method for purifying water according to claim 1, wherein: The carbon rods break the air mixed into the unfiltered water into small bubbles which are mixed with the filtered water.

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