Water purification equipment
By integrating a nanobubble generating partition into the outlet nozzle, the water purification device efficiently produces purified water and ultra-fine bubbles without additional piping, addressing space inefficiencies in conventional systems.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- NATURAL WILL CO LTD
- Filing Date
- 2025-01-16
- Publication Date
- 2026-07-29
AI Technical Summary
Conventional water purification systems with microbubble liquid generators require extra piping, leading to complex configurations and space inefficiencies.
Integrate a nanobubble generating partition into the outlet nozzle of the water purification device, converting it into a microbubble liquid generator, allowing direct connection without additional piping.
The system produces purified water and ultra-fine bubbles without extra piping, optimizing space usage and efficiency.
Smart Images

Figure 2026122608000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to water purification equipment that incorporates a fine bubble liquid generator into a water purification device (water purifier) attached to a water faucet, water pipe, etc. to filter water.
Background Art
[0002] The following patent document is a water purification equipment that incorporates a fine bubble liquid generator configured to generate fine bubbles in an outflow side pipe of a water purification device, which consists of a housing to which an inflow side pipe of tap water is connected, a cylindrical chlorine removal filter that is detachably disposed within the housing and whose hollow portion serves as a drain pipe to remove all or part of the chlorine in the tap water flowing in from the inflow side pipe, and an outflow side pipe that enters the housing and is connected to the lower end of the drain pipe through which the tap water flows out.
Patent Document 1
[0003] As shown in FIG. 11, a ball stopcock 15 with a water sampling tap was attached to the inflow side pipe 8 of tap water of the water purification device 1, and a fine bubble liquid generator 23 configured to generate fine bubbles was incorporated into the outflow side pipe 9.
[0004] As shown in FIG. 12, the water purification device 1 consists of a housing 2 to which the inflow side pipe 8 of the tap water is connected, a cylindrical chlorine removal filter 14 disposed within the housing 2 to remove all or part of the chlorine in the tap water flowing in from the inflow side pipe 8, and an outflow side pipe 9 connected to the housing 2 through which the tap water flows out. It is.
[0005] The housing 2 has a housing upper part 2b as a head cap fitted to a housing lower part 2a that is the main body, and is fastened by a fastening band engaging part 20. Reference numeral 21 in the figure is an air vent nozzle.
[0006] The chlorine removal filter 14 is a cartridge type, a columnar body with a hollow section that forms the drain pipe 5, and the filter material is made of antibacterial activated carbon 6 that has chlorine removal capabilities, with nonwoven fabric wrapped around its outer circumference, and inside, functional ceramic 7 with antibacterial and germicidal properties is laminated on the antibacterial activated carbon 6 at the outer circumference of the drain pipe 5.
[0007] The chlorine removal filter 14 was sealed by attaching rigid upper cover plate 3 and lower cover plate 4, which do not allow water to pass through, to its upper and lower ends.
[0008] The aforementioned outlet pipe 9 extends into the housing 2 and has a screw joint 22 at its tip. By screwing the joint 4a formed on the lower cover plate 4 into this joint, the chlorine removal filter 14 is supported by the outlet pipe 9 and fits inside the housing 2, while the lower end of the drain pipe 5 of the chlorine removal filter 14 communicates with the outlet pipe 9. [Overview of the Initiative] [Problems that the invention aims to solve]
[0009] In the water purification system described in Patent Document 1, the microbubble liquid generator 23 is installed in the middle of the outlet piping 9 of the water purification device 1, and is a separate entity located away from the water purification device 1, resulting in a complex piping configuration and taking up a lot of space.
[0010] The objective of the present invention is to eliminate the disadvantages of the conventional example and to provide a water purification system that can produce purified water and water transformed into UFB (ultra-fine bubbles) without using extra piping. Ultra Fine Bubble is a registered trademark owned by the Fine Bubble Industry Association. [Means for solving the problem]
[0011] To achieve the above objective, the present invention as described in claim 1 provides a water purification device to which an outlet nozzle is provided, wherein a cylindrical chlorine removal filter, having a hollow section that serves as a drain pipe to remove all or part of the chlorine from the tap water flowing in from the inlet pipe, is installed inside the housing to which the tap water inlet pipe is connected, and the outlet nozzle is installed inside the housing, This outlet nozzle is configured as a fitting specifically for water purifiers.The gist of this invention is that this outlet nozzle is used as a nanobubble generator, and a nanobubble generation partition has been incorporated into it.
[0012] According to the present invention as described in claim 1, by incorporating a nanobubble generating partition into the outlet nozzle of the water purification device, this outlet nozzle acts as a microbubble liquid generator, and the water purification device integrates the microbubble liquid generator as an integral part, thereby obtaining purified water and water transformed into UFB (ultra-fine bubble) without using extra piping.
[0013] While piping and an adapter are usually required to connect the outlet nozzle and the microbubble liquid generator, configuring the outlet nozzle as the microbubble liquid generator allows for direct connection to the elbow (by screwing or welding).
[0014] Furthermore, the outlet nozzle, which acts as a microbubble liquid generator, is configured as a fitting specifically for water purifier piping. Therefore, if the water purifier is installed in the middle of the piping, the microbubble liquid generator will be incorporated directly.
[0015] The present invention as described in claim 2 is characterized in that the nanobubble generation partition is formed at the front and rear ends of the outlet nozzle forming tube.
[0016] According to the present invention as described in claim 2, the nanobubble generating partition is a combination of a partition as a circular intake surface having branching holes that branch the inflow of water into multiple directions and a partition as a circular outlet surface having branching holes that branch the outflow of the fine bubble water generated inside the outlet nozzle. Tap water that flows vigorously from the intake surface having multiple branching holes becomes turbulent between the intake surface and the outlet surface, collides with the inner wall of the outlet nozzle, and then flows out from the multiple branching holes provided on the outlet surface and collides with the inner surface of the water pipe, thereby efficiently converting the bubble-like air or dissolved air in the tap water into fine bubbles.
[0017] The gist of the present invention according to claim 3 is that the outlet nozzle forming pipe constituting the outlet nozzle is connected to an elbow that screws into the joint part of the lower cover plate of the chlorine removal filter of the water purification device.
[0018] According to the present invention described in claim 3, the outlet nozzle forming pipe constituting the outlet nozzle will be installed horizontally via an elbow. When the outlet nozzle acts as a fine bubble liquid generator, this fine bubble liquid generator will also be installed horizontally, and the flow rate of water passing through the partition wall for generating nanobubbles can be made constant.
Effect of the Invention
[0019] As described above, the water purification equipment of the present invention can obtain purified water and water changed to UFB (ultra-fine bubble) without using extra piping.
Brief Description of the Drawings
[0020] [Figure 1] It is a longitudinal sectional side view showing one embodiment of the water purification equipment of the present invention. [Figure 2] It is a side view of the outlet nozzle of the water purification equipment of the present invention. [Figure 3] It is a perspective view of the outlet nozzle of the water purification equipment of the present invention. [Figure 4] It is a perspective view of the outlet nozzle of the water purification equipment of the present invention from another direction. [Figure 5] It is a longitudinal sectional side view of the outlet nozzle of the water purification equipment of the present invention. [Figure 6] It is a front view of the outlet nozzle of the water purification equipment of the present invention. [Figure 7] It is a rear view of the outlet nozzle of the water purification equipment of the present invention. [Figure 8] It is an explanatory view of the partition wall member for generating nanobubbles of the outlet nozzle of the water purification equipment of the present invention. [Figure 9] It is a side view of the elbow of the water purification equipment of the present invention. [Figure 10] It is a side view of the elbow of the water purification equipment of the present invention. [Figure 11] It is a side view showing a conventional example. [Figure 12] A longitudinal cross-sectional side view of a water purification device used in the water purification equipment of the present invention. [Modes for carrying out the invention]
[0021] The embodiments of the present invention will be described in detail below with reference to the drawings. Figure 1 is a longitudinal cross-sectional side view showing one embodiment of the water purification equipment of the present invention, where 1 is a water purification device in which a chlorine removal filter 14 is installed as a filter for the water purification device.
[0022] In the figure, 2 is a housing to which the water inlet and outlet pipes are connected. The upper part of the housing, which acts as a head cap, fits onto the lower part of the housing, 2a, which is the main body, and is fastened with a tightening band engagement part 20. In the figure, 21 is an air vent nozzle.
[0023] The chlorine removal filter 14 is a cartridge type, a columnar body with a hollow section that forms the drain pipe 5, as shown in Figure 12. The filter material is made of antibacterial activated carbon 6 with chlorine removal capabilities, and nonwoven fabric is wound around its outer circumference. Inside, functional ceramic 7 with antibacterial and germicidal properties is laminated on the antibacterial activated carbon 6 around the outer circumference of the drain pipe 5. (See Figure 12)
[0024] The chlorine removal filter 14 was sealed by attaching rigid upper cover plate 3 and lower cover plate 4, which do not allow water to pass through, to its upper and lower ends.
[0025] An inlet nozzle 32 is attached to the housing 2 for connection to the tap water inlet pipe, and an outlet nozzle 33 is also provided for connection to the tap water inlet pipe.
[0026] The outlet nozzle 33 is installed horizontally, with its outlet nozzle forming pipe 33a welded to an elbow 35 that screws into a joint 34 on the lower cover plate of the chlorine removal filter 14 of the water purification device 1.
[0027] The outlet nozzle 33 is configured as a microbubble water generator by forming nanobubble generation partitions 36 and 37 at the front and rear ends of the outlet nozzle forming tube 33a. The outlet nozzle of the water purification device is configured as a microbubble water generator.
[0028] The nanobubble generation partition wall 36 at the front end is a circular water intake surface with branching holes 36a, 36b, 36c, and 36d that branch the water inflow into multiple directions, and the microbubble water generator is positioned on the inlet side.
[0029] The nanobubble generation partition wall 36 is formed by fitting a disc-shaped body, as shown in Figure 8, into a recess at the front end of the outlet nozzle forming tube 33a.
[0030] The nanobubble generation partition wall 37 at the rear end is a circular water intake surface with branching holes 37a, 37b, 37c, and 37d that branch the water inflow into multiple directions, and the microbubble water generator is positioned on the outlet side.
[0031] This nanobubble generation partition 37 is formed by integral molding at the end of the outlet nozzle forming tube 33a.
[0032] In this way, the outlet nozzle forming tube 33a has a nanobubble generation partition wall 37 formed at its rear end, and by fitting a disc-shaped nanobubble generation partition wall 36 at its front end, it can be formed as a microbubble water generator.
[0033] The outlet nozzle 33 formed by the outlet nozzle forming pipe 33a is a fitting specifically for the water purifier, and has a screw groove 38 for pipe connection engraved on its rear end.
[0034] Next, regarding its use, the water purification device 1 is equipped with an inlet nozzle 32 and an outlet nozzle 33. The water purification device 1 is installed by connecting the tap water inlet pipe to the inlet nozzle 32 and the tap water outlet pipe to the outlet nozzle 33.
[0035] Tap water flowing into housing 2 penetrates the chlorine removal filter 14 through the gaps, and almost 100% of the chlorine is removed as it flows into the drain pipe 5.
[0036] Furthermore, some water passes through the bypass and flows into the drainpipe without passing through the chlorine removal filter 14, allowing tap water with a residual chlorine concentration corresponding to the opening degree of the cylindrical opening of the stopper 12 to be discharged, thereby ensuring a constant residual chlorine concentration in the tap water.
[0037] At the outlet nozzle 33, it acts as a microbubble liquid generator, supplying microbubbles, which in turn suppress the generation of dirt and slime.
[0038] In the outlet nozzle 33, a nanobubble generating partition 36 positioned on the inlet side and a nanobubble generating partition 37 positioned on the outlet side are formed at the front and rear ends of the outlet nozzle forming pipe 33a. As a result, tap water flowing vigorously from the circular intake surface, which has branching holes 36a, 36b, 36c, and 36d that branch the water inflow into multiple directions, becomes turbulent between the nanobubble generating partitions 36 and 37, collides with the inner wall of the cylindrical outlet nozzle forming pipe 33a, and then flows out from the multiple branching holes 37a, 37b, 37c, and 37d in the nanobubble generating partition 37, which is the outlet surface, and collides with the inner surface of the water pipe. This efficiently converts the bubble-like air or dissolved air in the tap water into microbubbles. [Explanation of Symbols]
[0039] 1…Water purification device 2…Housing 2a...Lower part of the housing 2b...Upper part of the housing 3...Top cover plate 4...Lower cover plate 4a... Joint section 5... Drain pipe 6…Antibacterial activated carbon 7…Functional ceramics 8...Inlet piping 9...Outlet piping 12… Stopper 14… Chlorine removal filter 20...Tightening band engagement part 21...Air vent nozzle 22...Screw fittings 23...Microbubble liquid generator 24... Case 25... Crushed stone 26... Meter box 27... Water meter 32...Inlet nozzle 33...Outlet nozzle 33a...Outlet nozzle forming pipe 34...Joint 35... Elbow 36... Partition for nanobubble generation 36a, 36b, 36c, 36d... Branch holes 37…Partition for generating nanobubbles 37a, 37b, 37c, 37d… Branch holes 38... Screw groove
Claims
1. A water purification system characterized by having an outlet nozzle provided in a housing to which the tap water inlet pipe is connected, and a cylindrical chlorine removal filter with a hollow section that serves as a drain pipe to remove all or part of the chlorine from the tap water flowing in from the inlet pipe is installed inside the housing, and this outlet nozzle is used as a nanobubble generator and incorporates a nanobubble generating partition.
2. The water purification system according to claim 1, wherein the outlet nozzle is configured as a fitting specifically for the water purifier.
3. The water purification apparatus according to claim 1 or claim 2, wherein the nanobubble generation partition is formed at the front and rear ends of the outlet nozzle forming tube.
4. The water purification system according to claim 3, wherein the outlet nozzle forming pipe constituting the outlet nozzle is connected to an elbow that screws into the joint portion of the lower cover plate of the chlorine removal filter of the water purification system.