CN212326221U

CN212326221U - Nanobubble generation device and apparatus including the same

Info

Publication number: CN212326221U
Application number: CN202022078557.0U
Authority: CN
Inventors: 曾艳
Original assignee: LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Current assignee: LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-01-12
Anticipated expiration: 2030-09-21

Abstract

The utility model provides a nanobubble generates device and contains its equipment, the device include that gas generation unit, tubular passage, porous component and nanobubble hold the chamber, can release the hydrogen molecule of nanobubble state to dry powder material around or dissolve in the liquid material to maintain the state that is close to saturation, the time of dwell is longer. Meanwhile, after the nano-scale hydrogen bubbles are dissolved in the drink for drinking, the increase of active oxygen and free radicals in a human body can be inhibited, and the effect of oxidation resistance is realized.

Description

Nanobubble generation device and apparatus including the same

Technical Field

The utility model belongs to nanotechnology and food processing field relate to a nanometer bubble generates device.

Background

Hydrogen molecules (hydrogen gas) have been considered as a very effective novel antioxidant with distinct pathological advantages in terms of disease prevention and health promotion. Hydrogen has a very small molecular weight, is very easily absorbed by the human body, and has low side effects. When hydrogen is filled in liquid food, people can easily absorb substances which are difficult to be absorbed by human bodies by taking the hydrogen filled in the liquid, and the beneficial effect of the hydrogen is easily exerted.

For example, chinese utility model patent publication No. CN100506091C discloses a liquid food and a method for producing the same, in which liquid beverages such as coffee, fruit juice, and soybean milk are directly subjected to electrolysis treatment, and then to deoxidation treatment, the obtained liquid is filled in a packaging container, and pasteurization is performed as required to obtain packaged beverages. However, other substances in the drink under such operation correspond to impurities, and these impurities may be electrolyzed or mixed in the obtained liquid, and the amount of by-products is large, and the amount of actually obtained hydrogen is small compared with the theoretical value.

In addition, the maximum concentration of hydrogen dissolved in water is 1.6ppm (1600 ppb) in an atmosphere of 20 ℃, i.e. the maximum concentration of 1.6 mg of hydrogen per kg of water is reached. In an open vessel, the half-life of the hydrogen water (the time required to halve the concentration) is about 2 hours or so. Therefore, when the anti-oxidation functions of hydrogen are applied, the concentration and stability of saturated hydrogen need to be maintained, and the nano hydrogen bubble technology can well meet the requirement.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solve the above problems of the prior art, and an object of the present invention is to provide a nanobubble generating device and an application thereof, which can release hydrogen molecules in a nanobubble state around a dry powder material or dissolve in a liquid material, and maintain a state close to saturation.

To this end, in a first aspect of the present invention, there is provided a nanobubble generating device comprising a gas generating unit, a tubular passage, a porous member, and a nanobubble receiving chamber, wherein,

the gas generation unit includes a first region partitioned by a partition into a first electrode and a second electrode, an electrolyte, a first gas outlet, and a power supply device for applying a voltage to the first electrode and the second electrode;

the tubular passage is used for communicating the first gas outlet and the porous element;

one end of the porous element is connected with the tubular channel, and the porous element has a preset pore size, so that the gas generated by the gas generation unit becomes nano bubbles and is supplied to the nano bubble accommodating cavity. In the present invention, the first electrode, the second electrode, the electrolyte, the separator, and the power supply device in the gas generating unit actually constitute an electrolytic cell structure that can electrolyze water of high purity to generate hydrogen gas.

Further, the electrolyte is an aqueous solution.

Further, the gas generated by the gas generation unit includes hydrogen.

Further, the first gas outlet is located at an upper portion of the gas generation unit.

Further, the porous element is a nano aeration pipe, the pipe wall of the nano aeration pipe is provided with uniformly distributed small holes, and the aperture of the small holes ranges from 1nm to 20nm, preferably from 2nm to 15nm, and more preferably from 5nm to 10 nm.

Further, the pores of the porous member may be arranged in a matrix, or in a ring, or in a triangular arrangement.

Further, the hole pitch between the small holes is 0.1mm to 1 mm.

Further, the inner diameter of the nano aeration pipe ranges from 1cm to 3 cm.

Further, the porous element is adhered with a one-way gas-permeable membrane, which is adhered to at least a portion of the inner wall of the porous element for selectively passing the nanobubbles. The one-way gas-permeable membrane functions as a gas-liquid separation membrane, and can selectively permeate gaseous hydrogen but not permeate liquid. Many gas-liquid separation membranes are known to meet such a requirement, for example, a PUW unidirectional gas permeable membrane can be coated or adhered in a porous element, a metal porous element is selected, and a support and the unidirectional gas permeable membrane are used in a laminated manner, and the structure of the unidirectional gas permeable membrane can minimize the possibility that liquid outside the porous element leaks into the porous element.

Further, the material of the porous element is stainless steel.

Further, the nanobubble generating device further comprises a stirring mechanism, and the stirring mechanism is located in the nanobubble containing cavity.

Further, the nanobubble generating device further comprises a driving assembly which can operate the stirring mechanism.

Further, the separator serves to prevent the gas generated at the first electrode from being mixed with the gas generated at the second electrode. The first electrode and the second electrode may sandwich the separator, and the distance between the first electrode and the second electrode is not particularly limited, and it is known to those skilled in the art that the voltage required for electrolysis can be reduced by shortening the distance between the first electrode and the second electrode.

Further, the separator is a proton exchange membrane PEM. Common are, for example, perfluorosulfonic acid polymers and the like.

Further, the nanobubble generating means may further include power supply means for applying a voltage to the first electrode and the second electrode. Preferably, the power supply device can convert an alternating voltage into a direct voltage.

Further, a voltage is applied between the first electrode and the second electrode so that the first electrode becomes a cathode and the second electrode becomes an anode.

Further, hydrogen is produced in the first zone and oxygen is produced in the second zone.

Further, the tubular passage may be a hose pipe, is not particularly limited, and may be a material having flexibility (rubber, resin, etc.)

Further, the oxygen exhaust port may be a mechanism for discharging oxygen after the oxygen is generated in the second region. Such means include a valve which is opened when the gas pressure in the second region becomes higher than a predetermined value, and closed the rest of the time, or a plastic sheet or a rubber sheet which can be covered in an open manner.

Further, the height of the oxygen gas vent is higher than the liquid level of the electrolyte.

Further, the nanobubble generating device may further include a drain opening, and the drain opening may be covered with a stopper.

The second aspect of the utility model provides an use this nanobubble to generate device and dissolve nanobubble hydrogen in the equipment of liquid drink.

The third aspect of the present invention provides a method for generating nanobubbles, comprising the steps of:

(1) providing an aqueous liquid as an electrolyte to the gas generating unit;

(2) applying a voltage between the first electrode and the second electrode, and allowing hydrogen generated by electrolysis of the aqueous liquid to enter the porous element from the first gas outlet through the tubular channel;

(3) the hydrogen forms nano hydrogen bubbles through the pores on the surface of the porous element and is dispersed to the nano bubble accommodating cavity.

Compared with the prior art, the utility model provides a technical scheme has following advantage:

1. the utility model provides a nanometer bubble generates device can obtain the minimum nanometer hydrogen bubble of volume, and the buoyancy that receives in liquid drink will be less than the buoyancy that ordinary bubble received in aqueous far away, and the time of dwell is longer, maintains the stability of liquid drinks such as fruit juice and dry goods (for example dry fruit, dry vegetables, seasoning, coarse cereals, sliced medicinal herbs, medicinal materials, preserved fruit etc.) after drawing or stirring, maintains taste and flavor. Meanwhile, after the nano-scale hydrogen bubbles are dissolved in the drink for drinking, the increase of active oxygen and free radicals in a human body can be inhibited, and the effect of oxidation resistance is realized.

2. In the nano-bubble generating device provided by the utility model, water is directly electrolyzed, but liquid substances such as fruit juice and coffee are not electrolyzed, and no interference exists in the water electrolysis process, thereby being more beneficial to the production of hydrogen.

Drawings

The advantages and spirit of the present invention can be further understood by the following detailed description of the invention and the accompanying drawings.

Fig. 1 is a schematic structural diagram of an exemplary nanobubble generating device applied to a food processor;

FIG. 2 is a cross-sectional view of an exemplary nanobubble generation device provided by the present invention;

FIG. 3 is a schematic view of a base portion of the food processor of FIG. 1;

fig. 4 is a schematic diagram of a one-way gas permeable membrane in an exemplary nanobubble generating device provided by the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention refers to the accompanying drawings. However, the present invention should be understood not to be limited to such an embodiment described below, and the technical idea of the present invention may be implemented in combination with other known techniques or other techniques having the same functions as those of the known techniques.

In the following description of the embodiments, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms are used, but terms such as "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "axial", "radial", etc. should be construed as words of convenience and should not be construed as limiting terms.

In the following description of the specific embodiments, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically stated otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Unless clearly indicated to the contrary, each aspect or embodiment defined herein may be combined with any other aspect or embodiments. In particular, any feature indicated as being preferred or advantageous may be combined with any other feature indicated as being preferred or advantageous.

Description of the terms

As used herein, the first electrode and the second electrode are electrodes capable of undergoing an electrolytic reaction of water. The first electrode and the second electrode may be the same or different, and preferably may be an electrode including a metal portion, such as a platinum electrode. The first electrode for generating hydrogen gas may be an electrode made of a less corrosive metal such as stainless steel, or an electrode made of a conductive material (e.g., a conductive carbon material) other than metal may be used.

A potential difference of electrolysis of water occurs between the first electrode and the second electrode, and the water may be electrolyzed to generate hydrogen gas and oxygen gas. For example, a predetermined direct current voltage may be applied between the first electrode and the second electrode so that the first electrode serves as a cathode and the second electrode serves as an anode. By this voltage application, hydrogen gas is generated from the first electrode, oxygen gas is generated from the second electrode, and hydrogen gas is discharged from the first gas outlet. A dc voltage is typically applied between the first and second electrodes. The magnitude of the applied voltage (potential difference) and the application method are not particularly limited as long as the aqueous liquid can be electrolyzed. A voltage may also be applied between the electrodes in a current-constant manner. Alternatively, a constant voltage may be applied between the electrodes. In one example, a dc voltage in the range of 2 to 70 volts or 5 to 20 volts is applied between the electrodes.

The first region provided with the first electrode and the second region provided with the second electrode are formed of a material capable of retaining an aqueous liquid. Generally, at least the inner surface of the first region and/or the second region is formed of an insulating material, and may be formed of, for example, glass, resin, rubber, metal, or a composite thereof.

As used herein, the power supply device may be a dc power supply, may be provided with a converter for converting an ac voltage into a dc voltage, may be a primary battery or a secondary battery, and the like.

As used herein, a separator may be a type of membrane intended to prevent the generation of gas from a first electrode and a second electrodeAnd mixing the resultant gas. The separator is not excessively limited in form and may preferably be a proton exchange membrane. Hydrogen ions (H) can be admitted using Proton Exchange Membranes (PEM)⁺) (also known as protons) migrate through the membrane to the opposite side, combining with the aid of electrode electrolysis to form hydrogen gas. Once recombined into hydrogen gas, the molecules can no longer pass through the membrane and are captured as high purity hydrogen. The first electrode and the second electrode are disposed so as to sandwich the separator. The distance between the first electrode and the second electrode is not particularly limited. By shortening the distance between the first electrode and the second electrode, the voltage required for electrolysis can be reduced. Illustratively, the distance between the first electrode and the second electrode may be in the range of 0.10mm to 30 mm. When water is electrolyzed under the above conditions, the separator preferably does not allow 50 vol% or more (e.g., 80 vol% to 100 vol%, 90 vol% to 100 vol%, 95 vol% to 100 vol%) of bubbles of a gas (e.g., oxygen) generated at the second electrode to pass therethrough.

As used herein, an aqueous liquid as an "electrolytic solution" refers to a liquid containing water, and the aqueous liquid contains 50% by mass or more (e.g., 60 to 100%, 80 to 100%, 90 to 100%) of water. A representative aqueous solution is an aqueous solution that may contain other ions on the basis of hydrogen ions and hydroxide ions. Typical examples of the aqueous solution include purified water, distilled water, mineral water, and the like.

As used herein, "stainless steel" refers particularly to ferritic, martensitic, and austenitic stainless steels, including super austenitic and austenitic-ferritic stainless steels. When used for food contact, austenitic stainless steel is preferable, and stainless steel products meeting the national food safety standards specified in GB 9684-2011 are required.

As used herein, the porous member is used to form nanobubbles from hydrogen gas generated from the gas generating unit, and may be a nano aeration tube (rod) or the like, and the pressure is formed within a certain range (for example, between about 0.15MPa and 0.4 MPa) by the transportation route of the gas generating unit through the tubular passage. Hydrogen is carried to nanometer aeration pipe through tubular passage, and nanometer aeration pipe's porous element disperses hydrogen in nanometer bubble's form to the liquid in nanometer bubble holds the chamber, simultaneously, utilizes stirring shear force effect of stirring blade, disperses more nanometer level's bubble to with liquid drinks such as fruit juice that are formed after being stirred and dry goods (for example dry fruit, dry vegetables, seasoning, coarse cereals, sliced medicinal herbs, medicinal materials, preserved fruit etc.) intensive mixing.

As used herein, "unidirectional gas permeable membrane" refers to a polymeric membrane that allows the passage of gases, for example, due to the presence of micropores. A "film" in the meaning of the present invention is a sheet or layer of material having a median thickness less than its length and width. For example, the term "film" may refer to a sheet or layer of material having a median thickness of less than 200 μm but greater than 1 μm.

As used herein, "adhered" can include the meaning of adhered and adhesively contacted, meaning that one facial surface of one layer and one facial surface of another layer are in contact with each other and adhesively contacted such that one layer cannot be removed from the other layer without damaging the contacting facial surfaces of the two layers.

The utility model discloses a nanometer bubble generates device can be used for various usage. For example, the nanobubble generating device itself may be used as a device for dissolving a gas (hydrogen and/or oxygen) in a liquid. The nanobubble generating device may also be used in devices that require the diffusion of hydrogen nanobubbles into a confined space. The means for dissolving nanobubbles may produce a liquid that dissolves hydrogen, such as hydrogen-rich water or other potable liquids (e.g., juice, coffee, tea, etc.). The nanobubbles dissolved in the liquid can give an aqueous liquid (e.g., water) having a dissolved hydrogen concentration of 300ppb or more (based on mass), and may be in the range of, for example, 400ppb to 1500ppb or 500ppb to 1200 ppb.

The utility model discloses a nanometer bubble generates device can use mixer, cooking machine or rubbing crusher etc. of various stirring liquid or solid matter. The stirrer may be a device including a stirring blade and a motor for rotating the stirring blade, and the stirring object is not limited to solid or liquid, and may be liquid drinks such as fruit juice, and dry goods (for example, dry fruits, dry vegetables, seasonings, miscellaneous cereals, decoction pieces, medicinal materials, preserved fruits, and the like). For example, dry goods are very easy to be oxidized in the stirring cavity, the nano bubble oxidation resisting technology is mixed with dry powder substances or liquid, the oxidation resisting effect is ensured, and the beverage suitable for drinking can be prepared.

Will the utility model discloses a nanometer bubble generates device uses in stirring cooking machine (can be rubbing crusher or broken wall machine) for the illustration the utility model discloses a specific embodiment.

Liquid drinks such as fruit juice and solid substances such as dry fruits, dry vegetables, seasonings, miscellaneous cereals, decoction pieces, herbs and preserved fruits have the best flavor and quality immediately after extraction, juicing or mincing, but are prone to deterioration in quality due to oxidation and temperature change with time. Therefore, the nano-bubble generating device provided by the utility model is added into the cooking equipment, on one hand, the stability of the substances after extraction or crushing can be maintained, and the taste and flavor can be maintained; on the other hand, the nano-scale hydrogen bubbles are dissolved in the drink, so that the increase of active oxygen and free radicals in a human body can be inhibited after the drink is drunk, and the antioxidant effect is realized.

The utility model provides a nanometer bubble generates device generates hydrogen through the electrolysis of water.

The separator separates the gas generation unit into a first region where the first electrode is present and a second region where the second electrode is present, the first region being connected to the first gas outlet, the second region being connected to the oxygen gas outlet. The first region or the second region may have a cylindrical, rectangular parallelepiped, or cylindrical shape extending in the vertical direction.

The separator is used for preventing the hydrogen generated by the first electrode from mixing with bubbles of oxygen generated by the second electrode, and a Proton Exchange Membrane (PEM) can be used as the separator.

The walls of the gas production unit may be made of an insulating material capable of containing an aqueous liquid, such as glass, resin, etc.

The inner wall of the porous element may be attached to a unidirectional gas permeable membrane 220 (shown in fig. 4) that prevents liquid in the stir chamber from penetrating into the porous element.

In the present embodiment, as shown in fig. 1, 2 and 3, a food processor is provided, which includes a base 210 and a cup body 1 detachably disposed on the base 210. When the cup body 1 is attached to the base 210, the gap between the cup body 1 and the base 210 can be sealed by using the packing 23. The entire base 210 includes the power supply device, the water injection hole 27, the gas generation unit 2, the tubular passage 216, and the oxygen gas exhaust port 213. The whole cup body 1 comprises a cup cover 11, a cup mouth 12, a handle 13, a stirring blade 22, a nano-bubble containing cavity 14 (also called a 'cooking cavity' in a cooking machine) and a porous element 21.

The power supply device may include a driving mechanism 214 for driving the blending blade 22, the driving mechanism 214 has a main shaft (not shown) passing through the base 210 and extending into the cooking cavity 14 to connect with the blending blade 22, the top of the main shaft is connected with the blending blade 22, and the blending blade 22 is used for crushing the fruit or dry goods (such as dried fruit, dried vegetable, flavoring, coarse cereals, decoction pieces, medicinal materials, preserved fruit, etc.) put into the cooking cavity 14.

In the gas generating means 2, electrolysis between the two electrodes 217 may be performed by applying a direct current voltage of 5 to 20 volts in a state where pure water continuously flows and/or stays between the two electrodes in a conventional manner. Hydrogen ion (H)⁺) (also known as protons) migrate through the PEM membrane 218 (proton exchange membrane) to the opposite side, combining with the assistance of an electrode to form hydrogen gas (H)₂). Once bound as hydrogen gas, the hydrogen gas molecules can no longer pass through the PEM membrane 218 and are captured as high purity hydrogen.

When in use, a certain volume (for example, 50ml to 100ml) of pure water is injected from the water injection hole 27, and the ac voltage of about 220V of the socket power supply 212 is converted into a dc voltage of about 20V by the rectifier 215. The gas generation unit undergoes electrolysis of water so that the hydrogen content increases. Then can throw into the fruit or the dry goods that wait to smash in cooking chamber 14, the hydrogen that gas generation unit made forms nanometer bubble through porous element 21 and spreads to cooking chamber 14, and it is rotatory to drive stirring blade 22 through actuating mechanism 214, and then smashes the fruit or the dry goods in the cooking chamber. A large amount of nano hydrogen bubbles formed in the cooking cavity are mixed with fruit juice or crushed dry goods to prepare drinks with higher hydrogen concentration or unoxidized dry powder substances, and the nutritional ingredients and the flavor of the drinks or the dry powder substances are kept. In the process, the pressure of the hydrogen flowing out of the tubular channel 216 is changed to promote the release of the hydrogen through the porous element, and meanwhile, the stirring blade also forms a certain shearing force to repeatedly shear and break gas molecules so as to accelerate the dispersion of nano bubbles.

Further, drain holes 219 may be provided near the bottom of the base to drain excess electrolyte to prevent excessive water from accumulating in the gas generation unit and causing corrosion or scaling.

Further, as is understood by those skilled in the art, a PCB control board is provided in the power supply device, and is connected to and controls the operation of the driving mechanism 214 and the gas generation unit, respectively, through line connections.

Further, for better use experience, a power indicator 25, a power button 26, a hydrogen production indicator 28 and a hydrogen production button 29 are respectively arranged on the side surface of the base, and are used for reminding or indicating a user to perform hydrogen production operation and stirring operation.

The terms "first" and "second" as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another, unless otherwise specified. Similarly, the appearances of the phrases "a" or "an" in various places herein are not necessarily all referring to the same quantity, but rather to the same quantity, and are intended to cover all technical features not previously described. Similarly, modifiers similar to "about", "approximately" or "approximately" that occur before a numerical term herein typically include the same number, and their specific meaning should be read in conjunction with the context. Similarly, unless a specific number of a claim recitation is intended to cover both the singular and the plural, and embodiments may include a single feature or a plurality of features.

The preferred embodiments of the present invention are described in the specification, and the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit the present invention. All technical solutions that can be obtained by logical analysis, reasoning or limited experiments according to the concept of the present invention by those skilled in the art are within the scope of the present invention.

Claims

1. A nanobubble generating apparatus comprising a gas generating unit, a tubular passage, a porous member and a nanobubble receiving chamber, wherein,

the gas generation unit includes a first region partitioned by a partition into a first region where a first electrode is provided and a second region where a second electrode is provided, an electrolytic solution, a first gas outlet, and a power supply device for applying a voltage to the first electrode and the second electrode;

one end of the porous element is connected with the tubular channel, and the porous element has a preset pore diameter, so that the gas generated by the gas generation unit becomes nano bubbles and is supplied to the nano bubble accommodating cavity.

2. The nanobubble generation apparatus of claim 1, wherein the porous member is a nanobubble, and the wall of the nanobubble is provided with uniformly distributed pores with a diameter ranging from 1nm to 20nm, preferably from 2nm to 15nm, and more preferably from 5nm to 10 nm.

3. The nanobubble generating device of claim 2, wherein the hole pitch between the small holes is 0.1mm to 1 mm.

4. The nanobubble generating apparatus of claim 2, wherein the inner diameter of the nanoaeration tube ranges from 1cm to 3 cm.

5. The nanobubble-generating device of claim 1, wherein the porous element has adhered thereto a unidirectional gas-permeable membrane that is adhered to at least a portion of the inner wall of the porous element for selective passage of nanobubbles.

6. The nanobubble generation device of claim 1, wherein the separator is a proton exchange membrane PEM.

7. The nanobubble generating device of claim 1, wherein a voltage is applied between the first electrode and the second electrode in such a way that the first electrode becomes a cathode and the second electrode becomes an anode, and hydrogen gas is generated in the first region and oxygen gas is generated in the second region.

8. The nanobubble-generating device of claim 1, further comprising an agitation mechanism located within the nanobubble-containing chamber.

9. The nanobubble generating device of claim 1, further comprising an oxygen exhaust port, which is a mechanism for discharging oxygen after the oxygen is generated in the second region.

10. An apparatus comprising the nanobubble generation device of any of claims 1-9, wherein the apparatus is used to dissolve nanobubble hydrogen in a liquid beverage.