JP-7856439-B2 - Microbubble generator

Inventors

• 熊谷 知也

Assignees

• 東芝ホームテクノ株式会社

Dates

Publication Date

20260511

Application Date

20220128

Claims (7)

1. Bubble-generating body and A tubular body having a mounting portion to which a pipe that can be connected to a component from which liquid is discharged can be attached, A flow channel for liquid is formed inside the bubble generator and the tube. The bubble generator has a reducing section in which the cross-sectional area decreases from the upstream side to the downstream side of the flow path, an expanding section in which the cross-sectional area increases from the upstream side to the downstream side, and a narrow channel section formed between the reducing section and the expanding section. Fine bubbles are generated from the gas dissolved in the aforementioned liquid . A microbubble generator characterized in that the bubble generating element is directly connected to a pump that discharges the liquid .
2. The microbubble generator according to claim 1, characterized in that the aforementioned narrow channel section is cylindrical.
3. The microbubble generator according to claim 1, characterized in that the bubble generating body and the tube body are integrally formed.
4. The microbubble generator according to claim 1 , characterized in that the tubular body is disposed on the upstream side of the bubble generator.
5. The microbubble generator according to any one of claims 1 to 4 , characterized in that a pipe retention portion is formed in the mounting portion.
6. The system further includes a restricting plate for restricting the flow of the aforementioned liquid, The regulating plate is disposed on the upstream side of the bubble generator, The regulating plate has through holes through which the liquid passes. A microbubble generator according to any one of claims 1 to 5 , characterized in that the positions of the upstream opening and the downstream opening of the through hole are offset.
7. Multiple through holes are provided as elongated holes along the outer circumference of the regulating plate, and the amount by which the position of the opening is shifted is substantially the same for each of the through holes. The microbubble generator according to claim 6 , characterized in that the reduced portion is formed in a substantially inverted cone shape.

Description

This invention relates to a microbubble generator capable of generating microbubbles in a liquid. As an example of this type of microbubble generator, Patent Document 1 discloses a faucet microbubble generator that is incorporated into a water tap. A water tap consists of a tap body, a spout, a swivel pipe, a cap nut, a U-packing, and a ring, and the faucet microbubble generator is equipped with an insert that has a channel through which water discharged from the water tap can pass. This channel has a first channel whose cross-sectional area decreases as it moves from the upstream side to the downstream side where the liquid flows, a third channel whose cross-sectional area increases as it moves from the upstream side to the downstream side, and a second channel that connects the first channel and the third channel. When incorporating the faucet microbubble generator into a water tap, the swivel pipe, cap nut, U-packing, and ring are temporarily removed from the spout attached to the tap body, the U-packing and ring are attached to the swivel pipe, the faucet microbubble generator is placed in this swivel pipe, and the swivel pipe is reattached to the spout, thereby incorporating the faucet microbubble generator into the water tap. Patent No. 6579547 (A) A plan view of the main body as seen from the downstream side, when the flow channel member, upstream joint member and downstream joint member are formed as separate parts, and (B) a cross-sectional view taken along line C-C in Figure 1(A), showing a microbubble generator according to a first embodiment of the present invention.(A) A plan view of the main body as seen from the downstream side when the flow channel member, upstream joint member and downstream joint member are integrally formed, and (B) A cross-sectional view taken along line C-C in Figure 2(A).This is a cross-sectional view of the main body of a microbubble generator, which is a second embodiment of the present invention, when the flow channel member, upstream joint member, and downstream joint member are formed as separate parts.The same as above, this is a cross-sectional view of the main body when the flow channel member, upstream joint member, and downstream joint member are formed as separate parts.The same as above, this is a cross-sectional view of the main body when the flow channel member, upstream joint member, and downstream joint member are integrally formed.The same as above, (A) a side view of the plate member, (B) a top view of the plate member, and (C) a cross-sectional view taken along line D-D in Figure 6(B).This is a partial cross-sectional view of a microbubble generator showing a third embodiment of the present invention.This is a partial cross-sectional view of a microbubble generator showing a modified example of the third embodiment of the present invention.This is a partial cross-sectional view of a microbubble generator showing a further modification of the third embodiment of the present invention. The following describes preferred embodiments of the microbubble generator according to the present invention with reference to the accompanying drawings. Common reference numerals are used for common parts throughout all of these drawings. Figures 1 and 2 show the configuration of a microbubble generator according to the first embodiment of the present invention. Based on these figures, 1 is the main body of the microbubble generator, and the main body 1 is generally composed of a flow channel member 2, an upstream joint member 3, and a downstream joint member 4. A flow channel 5 is formed inside these flow channel member 2, upstream joint member 3, and downstream joint member 4, through which liquid water flows. In this embodiment, the main body 1 is formed in a substantially cylindrical shape, and therefore the flow channel member 2, upstream joint member 3, and downstream joint member 4 are also formed in a substantially cylindrical shape. They are connected coaxially in the order of upstream joint member 3, flow channel member 2, and downstream joint member 4 from upstream to downstream of the flow channel 5, but the present invention is not limited to this configuration. In this embodiment, as shown in Figure 1, the flow path member 2, the upstream joint member 3, and the downstream joint member 4 may be formed as separate parts. Furthermore, if the diameter of the hollow portion 11 in the mounting portion 13 of the upstream joint member 3 (described later) is larger than the diameter of the entrance to the narrowed portion 7, which is the diameter of the entrance to the hollow portion 6 of the flow path member 2 (described later), the flow path member 2 and the upstream joint member 3 may be formed as a single unit. Similarly, if the diameter of the hollow portion 21 in the mounting portion 17 of the downstream joint member 4 (described later) is larger than the diameter of the exit to the widened portion 8, which is the diameter of the exit to the hollow portion