CN212982528U - Household micro-bubble generating device - Google Patents

Abstract

The utility model provides a domestic microbubble generating device. The microbubble generating device comprises a shell, a stepped hydraulic cavitation cavity and a composite screen. The composite screen is connected to an outlet of the stepped hydraulic cavitation cavity, the stepped hydraulic cavitation cavity is arranged in the shell, and the stepped hydraulic cavitation cavity is internally provided with a plurality of coaxial cavities. The utility model discloses small in size directly utilizes the hydrodynamic cavitation to take place the microbubble, need not the bleed, and simple structure easily processing can the direct mount on domestic water tap.

Description

Household micro-bubble generating device

Technical Field

The utility model belongs to the microbubble field relates to a domestic microbubble generating device.

Background

Microbubbles are microbubbles having a bubble radius of 100 microns or less. Compared with common bubbles, the micro-bubbles have a series of unique characteristics of large specific surface area, high gas-liquid mass transfer efficiency, long existence time, negative charges on the surface and the like. The method is also applied to the fields of water oxygenation, sewage treatment, air flotation water purification, gas-liquid reaction and aquaculture.

The micro bubble technology has wide prospect in the household field, micro bubbles are favorable for carrying oil stains and germs to be separated from the surface, and can be used for washing clothes, fruits, vegetables and tableware in an auxiliary manner, so that the dosage of a detergent is reduced. Local high temperature and high pressure generated in the breaking process of the micro bubbles, and certain disinfection and sterilization effects can be achieved by negative oxygen ions and hydroxyl radicals. However, the current micro-bubble device is mostly used in the industrial field, the device structure is complex, the equipment volume is large, and some pressurizing equipment needing assistance cannot be used in the household field.

At present, microbubble generating equipment used in the household field generally adopts a jet aeration method or a rotational flow air entraining method. The jet aeration method is characterized in that liquid is injected into the jet device through the pressure of a municipal tap water pipe network, negative pressure is generated when the liquid passes through a nozzle of the jet device at a high speed, gas is directly sucked from an air suction port and mixed in the mixing pipe, and bubbles are chopped by intense mixing in the mixing pipe.

The swirl-induced air method uses a special flow channel structure to form a rotary flow in the ejector, and the center of the rotary flow generates a negative pressure to attract air and chop bubbles by means of the rotary flow. CN203916477U discloses a micro-nano bubble generating device utilizing a rotational flow air entraining technology. The device sets up two-stage air runner in a cylinder shell, two-stage water inlet flow way, rivers form the whirl through the whirl accelerating tube and inhale the air and carry out gas-liquid mixture after reducing pipe and toper net and form the microbubble. The device can be directly installed on a household water faucet, and micro-nano bubbles are formed by utilizing the water pressure of a municipal pipe network. However, the device has a complex structure and comprises a multi-stage flow channel, the swirl accelerating tube and the reducing tube of the device belong to special-shaped pieces and have larger processing difficulty, and the processing cost of the device is high.

Disclosure of Invention

To the above-mentioned problem that exists among the prior art, the utility model aims to provide a simple structure's domestic microbubble generating device. The utility model discloses directly utilize the cavitation of water to produce the microbubble, only need set up liquid flow channel, do not have bleed structure and gas flow channel, overall structure is simple, easily processing. The device is small in size, can be installed on a household water faucet through conversion threads, and does not need complex structures such as a booster pump and the like.

In order to achieve the purpose, the utility model adopts the following technical scheme.

The utility model provides a domestic microbubble generating device, microbubble generating device comprises casing, ladder hydrodynamic cavitation chamber, compound screen cloth.

The utility model discloses utilize ladder hydrodynamic cavitation chamber and composite screen cloth cooperation, rivers produce the resistance when meetting composite screen cloth, and partial rivers produce the backward flow. The part of return water is matched with the specific geometrical structure of the stepped hydraulic cavitation cavity, so that the water flow is repeatedly vibrated in the stepped hydraulic cavitation cavity. The repeated oscillation of the water flow generates a cavitation effect, and a local negative pressure area is randomly formed in the oscillation cavity. Since municipal tap water has a small amount of air dissolved therein and forms minute air nuclei in the water, in the negative pressure region local to the fluid, the air dissolved in the water is desorbed from the water due to the pressure reduction, and part of the water is vaporized due to the pressure reduction, and these two components work together to form minute air bubbles in the water. The bubbles are further cut by the screen mesh when passing through the screen mesh, and part of the bubbles impact on the screen mesh to be broken, so that negative oxygen ions and hydroxyl radicals with sterilizing effect are formed. The utility model provides a microbubble relies on the evaporation of the naturally dissolved air of aquatic and water self to form, need not to set up the runner from outside bleed, cooperates simple ladder water conservancy cavitation cavity structure, realizes the low-cost processing of integrated device.

Following as the utility model discloses preferred technical scheme, but do not regard as right the utility model provides a technical scheme's restriction, through following preferred technical scheme, can be better reach and realize the utility model discloses a technical purpose and beneficial effect.

As the preferred technical scheme of the utility model, this device comprises casing, ladder hydrodynamic cavitation chamber, compound screen cloth.

As the utility model discloses a preferred technical scheme, compound screen cloth is located ladder hydrodynamic cavitation chamber exit, and the hydrodynamic cavitation chamber is arranged in the casing.

As the preferred technical proposal of the utility model, the ladder hydrodynamic cavitation cavity is composed of a series of coaxial cavities. The number of cavities is 2-6, such as 2, 3, 4, 5, 6, preferably 2-3.

As the preferred technical scheme of the utility model, cylindrical cavity or round platform shape cavity, preferred cylindrical cavity that coaxial cavity is.

As a preferred technical solution of the present invention, the ratio of the top surface diameter to the bottom surface diameter of the cavity is 0.5-2, for example, 0.5, 0.6, 0.8, 1, 1.2, 1.5, 1.6, 2.

As a preferred technical solution of the present invention, the ratio of the average diameters of the adjacent cavities of the cavity is 0.3-2.5, such as 0.3, 0.5, 0.8, 1, 1.5, 2, 2.5.

As the preferred technical scheme of the utility model, the average diameter of cavity is the arithmetic mean of cavity top surface diameter and cavity bottom surface diameter.

As the utility model discloses preferred technical scheme, the casing be one section nonrust steel pipe, steel pipe one end contains connecting thread, connecting thread is the internal thread.

As the preferred technical scheme of the utility model, compound screen cloth is the multilayer screen cloth, contains fine screen mesh layer and coarse screen mesh layer. The fine screen layer comprises 3-6 layers of fine screen, for example 3, 4, 5 or 6 layers, preferably 4 or 5 layers. The coarse screen layer comprises 1 layer or 2 layers of coarse screens.

As a preferred technical scheme of the utility model, the mesh number of the fine screen is 300-1000 meshes, for example, 300 meshes, 400 meshes, 500 meshes, 600 meshes, 800 meshes and 1000 meshes, preferably 300-600 meshes. The mesh number of the coarse screen is 20 to 200 meshes, for example, 20 meshes, 40 meshes, 60 meshes, 80 meshes, 100 meshes, 150 meshes, 200 meshes, preferably 40 to 80 meshes.

As the utility model discloses an preferred technical scheme, but the screen cloth lug weld is installed at ladder hydrodynamic cavitation chamber export or utilize the external screw thread, and the preferred external screw thread installation that adopts.

As the preferred technical proposal of the utility model, the water inlet pressure of the household micro-bubble device is 0.1-0.4MPa (gauge pressure).

The utility model discloses small in size directly utilizes the hydrodynamic cavitation to take place the microbubble, need not the bleed, and simple structure easily processing can the direct mount on domestic water tap. The device can be used for generating micro-bubble water containing small bubbles with the diameter of less than 100 um. The detergent is used for cleaning clothes, fruits, vegetables and tableware, and can achieve the effects of saving water, removing oil, sterilizing, disinfecting and reducing the dosage of detergent.

Drawings

Fig. 1 is a schematic structural diagram of a microbubble generation device provided in embodiment 1; the device comprises a shell, a connecting thread, a 2-stepped hydraulic cavitation cavity, a 201-stainless steel ring 1, a 202-stainless steel ring 2, a 203-stainless steel ring 3, a 3-composite screen, a 301-screen sheet and a 302-screen connecting thread.

Fig. 2 is a schematic structural diagram of a microbubble generation device provided in embodiment 3; the device comprises a shell, a connecting thread, a 2-step hydraulic cavitation cavity and a 3-composite screen, wherein the shell is 1, the connecting thread is 101, and the composite screen is 3.

Detailed Description

To better explain the utility model, the technical proposal of the utility model is convenient to understand, and the utility model is further explained in detail below. However, the following embodiments are only simple examples of the present invention, and do not represent or limit the scope of the present invention, which is defined by the appended claims.

The following are typical, but non-limiting, examples of the present invention.

Example 1: the present embodiment provides a home-use microbubble generation device.

The structure of the microbubble generator is shown in figure 1, and the microbubble generator comprises a shell 1, a stepped hydrodynamic cavitation cavity 2 and a composite screen 3. The stepped hydraulic cavitation cavity is arranged in the shell 1, and the composite screen 3 is positioned at the outlet of the stepped hydraulic cavitation cavity 2.

The shell 1 is a section of stainless steel pipe with internal threads at two ends, wherein the internal thread 101 at one end is used for being connected with a household faucet, and the internal thread at the other end is used for being connected with the composite screen 3.

The composite screen 3 comprises a composite screen sheet 301 and screen connecting threads 302, and the composite screen sheet 301 is placed or welded on the screen connecting threads 302.

The composite screen 3 comprises 5 layers of 300 mesh screens and 1 layer of 40 mesh screens.

The stepped hydraulic cavitation cavity 2 is a flow channel with a stepped cavity formed by three stainless steel rings 201, 202 and 203. Three stainless steel rings 201, 202, 203 connect gradually, and the aperture ratio is 1: 2: 2.5.

all accessories in this embodiment simple structure easily processes, can accomplish the device processing through simply assembling relevant accessories.

Example 2: this embodiment provides an operation of the microbubble generator as described in embodiment 1, and illustrates the principle of the device.

The micro-bubble device is arranged on a household water faucet by utilizing a fixed thread, and the water outlet pressure of the household water faucet is generally 0.2MPa (gauge pressure). Driven by water pressure, water flow passes through the stepped hydrodynamic cavitation cavity 2 to reach the composite screen 3. The composite screen 3 provides a certain resistance, under the action of which part of the water flow flows back. When the water-saving type water-saving device is in collision with incoming water in the backflow process, as the stepped hydraulic cavitation cavity 2 is a stepped cavity, when the size of each stepped cavity is proper, part of water flow can oscillate back and forth in the cavity, and violent pressure fluctuation is formed in the stepped hydraulic cavitation cavity 2 in the process, so that a local high-pressure area and a local low-pressure area are generated.

Municipal tap water has dissolved therein a small amount of air which is dissolved in the water in the form of microscopic gas nuclei. In the low pressure zone, the air dissolved in water is released from the water body due to the reduced pressure to form micro-bubbles. Meanwhile, the saturated vapor pressure of water is reduced due to pressure reduction, and micro bubbles can be formed by evaporation of part of water body.

The micro-bubbles pass through the composite screen along with the water flow, and part of the large bubbles are further chopped by the screen to form small bubbles in the process of passing through the composite screen. Part of the bubbles directly impact the screen mesh to be collapsed, and negative oxygen ions and hydroxyl free radicals with certain sterilization and disinfection effects are formed.

The water containing microbubbles is used to clean away oil and bacteria that may be entrained by the air flotation. The negative oxygen ions and hydroxyl free radicals generated by the collapse of the bubbles in the water also have the sterilization and disinfection effects.

Example 3: the embodiment provides a domestic micro-nano bubble device, and the structure is as shown in figure 2.

The device comprises a shell 1, a stepped hydraulic cavitation cavity 2 and a composite screen 3.

The stepped hydraulic cavitation cavity 2 is a section of steel pipe with a stepped cavity, and the composite screen 3 is directly welded on the stepped hydraulic cavitation cavity 2.

The stepped hydraulic cavitation cavity 2 comprises three stepped cavities which are cylindrical, and the average diameter ratio of the three cavities is 1: 2: 3.

the composite screen 3 comprises 5 layers of 300 mesh screens and 1 layer of 40 mesh screens.

The shell 1 is a steel pipe with an internal thread 101 at one end, and the internal thread 101 is used for being connected with a household faucet.

In the embodiment, the stepped hydraulic cavitation cavity is relatively complex to machine, but the number of integral parts is small.

The applicant states that the above is the preferred embodiment of the present invention. Those skilled in the art can finely modify the device based on the principles of the present invention, and change the material of each component or change the connection and assembly of each component (step hydrodynamic cavitation cavity, composite screen, housing), all fall within the protection scope and disclosure scope of the present invention.

Claims (8)

1. The utility model provides a domestic microbubble generating device, its characterized in that contains casing (1), and inside casing (1) was arranged in to ladder hydrodynamic cavitation chamber (2) and composite screen cloth (3), ladder hydrodynamic cavitation chamber (2), and composite screen cloth (3) connect in ladder hydrodynamic cavitation chamber (2) exit, contain a plurality of coaxial cavitys in ladder hydrodynamic cavitation chamber (2).

2. The home micro-bubble generating apparatus according to claim 1, wherein the cavity is a cylindrical cavity or a truncated-cone cavity.

3. The home microbubble generation apparatus as claimed in claim 1, wherein the number of the cavities is 2-6.

4. The home micro air bubble generating apparatus as claimed in claim 1, wherein the ratio of the diameter of the top surface to the bottom surface of the cavity is 0.5-2.

5. The home microbubble generation apparatus as claimed in claim 1, wherein the ratio of the average diameter of the cavity to the average diameter of the adjacent cavities is 0.3-2.5.

6. A home micro-bubble generating device according to claim 1, wherein the composite mesh (3) is formed by combining a plurality of layers of mesh.

7. A home micro-bubble generating device according to claim 1, wherein the housing (1) has a connecting internal thread (101) at one end.

8. The apparatus as claimed in claim 6, wherein the multi-layer screen comprises a coarse screen layer and a fine screen layer, the coarse screen layer comprises 1-2 layers of coarse screen with mesh size of 20-200 mesh, the fine screen layer comprises 1-6 layers of fine screen with mesh size of 300-1000 mesh.

Images