CN114832662A

CN114832662A - Micro-nano bubble liquid generation system and water heater

Info

Publication number: CN114832662A
Application number: CN202111673911.7A
Authority: CN
Inventors: 刘琼富; 巴喜亮; 沈黎峰; 梁国荣
Original assignee: Midea Group Co Ltd; Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Priority date: 2021-02-01
Filing date: 2021-12-31
Publication date: 2022-08-02
Also published as: CN114832659A; CN114832660A; CN217527059U; CN114832663A; CN217646208U; CN217646211U; CN216878801U; CN217527057U; CN114832661A; CN217646209U; CN114832658A; CN114832664A; CN216878799U; CN217016138U

Abstract

The invention discloses a micro-nano bubble liquid generation system and a water heater, wherein the micro-nano bubble liquid generation system comprises: air dissolving device, pump, pressure regulating valve subassembly. The air dissolving device is internally provided with a mixing cavity, a liquid inlet flow path, an air inlet path and a liquid outlet flow path which are communicated with the mixing cavity, and has an air inlet state and an air dissolving state. The inflator pump is arranged on the air inlet path. The pressure regulating valve assembly is arranged on the liquid inlet pipeline and comprises a pressure stabilizing valve and a flow regulating valve which are arranged in parallel and matched with each other; in the air inlet state, the opening degree of the flow regulating valve is reduced, the air outlet pressure of the inflator pump is greater than the water outlet pressure of the pressure stabilizing valve, the inflator pump inflates air to the mixing cavity, and the mixing cavity discharges liquid from the liquid outlet flow path; in the gas dissolving state, the flow regulating valve increases the opening, the inflator pump stops running, and the gas in the mixing cavity is dissolved in the liquid. The micro-nano bubble liquid generation system provided by the embodiment of the invention is simple and flexible in arrangement, high-efficiency and quick in air intake and air dissolution, and does not need water cut-off in the whole process.

Description

Micro-nano bubble liquid generation system and water heater

Cross Reference to Related Applications

The present application is based on the chinese patent application having application number 202120289186.2, application date 2021, 02/01, and claims priority from the chinese patent application, the entire contents of which are incorporated herein by reference.

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to a micro-nano bubble liquid generation system and a water heater.

Background

The micro-nano bubble water is formed by dissolving a large amount of micro bubbles with the bubble diameter of 0.1-50 mu m in water. The micro-nano bubble water is widely applied to industrial water treatment and water pollution treatment at present, and is gradually applied to daily life and beauty products at present.

The micro-nano bubbles have smaller size, so that the micro-nano bubbles can show the characteristics different from common bubbles, such as long existence time, higher interface zeta potential, high mass transfer efficiency and the like. By utilizing the characteristics of the micro-nano bubbles, the micro-nano bubble water can be prepared for degrading pesticide residues of vegetables and fruits, can kill bacteria and partial viruses, and has partial effect on antibiotics and hormones of some meats.

At present, micro-nano bubble water generation technology can be divided into the following steps according to a bubble generation mechanism: pressurized gas dissolving method, air entraining induction method and electrolytic precipitation method. Although bubbles formed by traditional pressurized dissolved air are fine, a booster pump is needed for pressurization, so that the system has large running amount, large running noise and vibration, high cost and low cost performance, and is not beneficial to being applied to small equipment; the series operation and control are complex, and the experience effect is poor.

In the production process of some micro-nano bubble water, in the process of dissolving gas in liquid to form gas-dissolved water, water cannot be discharged from a water using terminal, so that a user needs to wait for a period of time to use the micro-nano bubble water; even when micro-nano bubble water is used, the micro-nano bubble water cannot be continuously output when the micro-nano bubble water is not enough, and user experience is influenced.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a micro-nano bubble liquid generation system, when air is introduced and dissolved into the micro-nano bubble liquid generation system, water is continuously supplied by a water end, the generation efficiency of the gas-dissolved liquid is high, the system is simple to operate, and the technical problems of large volume, high cost and low cost performance of the traditional pressurized gas-dissolved operation in the prior art are solved.

The invention also aims to provide a water heater with the micro-nano bubble liquid generation system.

According to the embodiment of the invention, the micro-nano bubble liquid generation system comprises: the air dissolving device is internally provided with a mixing cavity, a liquid inlet flow path, a gas inlet path and a liquid outlet flow path which are communicated with the mixing cavity are formed on the air dissolving device, and the air dissolving device has a gas inlet state and a gas dissolving state; the inflator pump is arranged on the air inlet path; the pressure regulating valve assembly is arranged on the liquid inlet flow path and comprises a pressure stabilizing valve and a flow regulating valve which are arranged in parallel, and the pressure stabilizing valve is opened when the pressure of the pressure stabilizing valve is not less than the liquid outlet pressure of the flow regulating valve; in the air inlet state, the flow regulating valve reduces the opening degree, the air outlet pressure of the inflator pump is greater than the water outlet pressure of the pressure stabilizing valve, the inflator pump inflates the mixing cavity, and the mixing cavity discharges liquid from the liquid outlet flow path; and in the gas dissolving state, the flow regulating valve increases the opening degree, the inflator pump stops running, and the gas in the mixing cavity is dissolved in the liquid.

According to the micro-nano bubble liquid generation system provided by the embodiment of the invention, the pressure stabilizing valve can be matched with the flow regulating valve and is opened when the liquid outlet pressure of the flow regulating valve is greater than or equal to the liquid outlet pressure of the flow regulating valve, so that the liquid outlet pressure of the liquid inlet flow path is regulated, and the liquid outlet pressure of the liquid inlet flow path is stable. The inflator pump and the pressure regulating valve assembly act in a matched manner, so that when the liquid inlet flow of the mixing cavity is controlled to be reduced, the inflator pump quickly inflates towards the mixing cavity and discharges liquid in the mixing cavity, and the gas dissolving device is filled with gas; after the gas dissolving device is filled with more gas, the liquid inlet flow of the mixing cavity is controlled to be increased, the inflator pump does not work, the pressure of the mixing cavity is increased, and therefore the gas in the gas dissolving device is quickly dissolved in the liquid to form gas dissolving liquid, water is not required to be cut off in the whole process, and guarantee is provided for the subsequent formation of micro-nano bubble water.

According to the micro-nano bubble liquid generation system provided by some embodiments of the invention, the air inlet gas path and the liquid inlet flow path are respectively connected to different positions of the air dissolving device; or, the air dissolving device further comprises a converging flow path communicated with the mixing cavity, and the air inlet path is communicated with the liquid inlet flow path.

According to some embodiments of the invention, the micro-nano bubble liquid generation system further comprises a one-way valve, and the one-way valve is arranged on the air inlet path so as to enable the inflator pump to inflate towards the mixing cavity.

According to the micro-nano bubble liquid generation system provided by some embodiments of the invention, the flow regulating valve is a flow valve with continuously adjustable opening degree.

According to the micro-nano bubble liquid generation system provided by some embodiments of the invention, the flow regulating valve is a multi-gear output variable flow switching valve.

Optionally, the flow switching valve includes a first gear and a second gear, the outlet flow rate of the flow switching valve in the first gear is smaller than the outlet flow rate in the second gear, and the flow switching valve is located in the first gear in the intake state; and in the dissolved air state, the flow switching valve is positioned at the second gear.

Optionally, the flow switching valve and the pressure maintaining valve are integrally arranged on the liquid inlet flow path.

Further optionally, a liquid inlet end of the flow switching valve is connected with a liquid inlet end of the pressure stabilizing valve through a first flow channel, and the first flow channel is connected with the liquid inlet flow path; and/or the liquid outlet end of the flow switching valve is connected with the liquid outlet end of the pressure stabilizing valve through a second flow passage, and the second flow passage is communicated with the gas dissolving device.

Optionally, the pressure regulating valve assembly further comprises a first tee joint, a first liquid inlet port of the first tee joint is communicated with the liquid inlet flow path, a first flow channel communicated with the first liquid inlet port is formed in the first tee joint, the first flow channel is further communicated with two first liquid outlet ports, and the two first liquid outlet ports are respectively connected with the liquid inlet end of the pressure stabilizing valve and the liquid inlet end of the flow switching valve.

Optionally, the flow switching valve further comprises a second tee joint, a second liquid outlet port of the second tee joint is communicated with the gas dissolving device, a second flow channel communicated with the second liquid outlet port is formed in the second tee joint, the second flow channel is further communicated with two second liquid inlet ports, and the two second liquid inlet ports are respectively connected with the liquid outlet end of the flow regulating valve and the liquid outlet end of the pressure stabilizing valve.

Optionally, the flow switching valve includes a valve housing, a flow stabilizing assembly and a driving assembly, the valve housing has a valve inlet and a valve outlet which can be communicated, a chamber is arranged in the valve housing and is communicated with the valve inlet and the valve outlet, the flow stabilizing assembly and the driving assembly are both arranged in the chamber, two water passing channels communicated with the chamber are formed on the flow stabilizing assembly, and the driving assembly acts and controls the on-off of one of the water passing channels to switch between the first gear and the second gear.

Optionally, the surge damping valve includes a surge damping housing and an adjusting component, the surge damping housing includes a surge damping inlet, a surge damping outlet and a surge damping flow channel, the surge damping flow channel is respectively communicated with the surge damping inlet and the surge damping outlet, and the adjusting component controls the conduction or the cutoff of the surge damping flow channel.

According to some embodiments of the present invention, the micro-nano bubble liquid generating system further includes a water flow sensor, and the water flow sensor is disposed on the liquid inlet flow path to detect a liquid inlet flow rate of the liquid inlet flow path.

Optionally, the micro-nano bubble liquid generation system further comprises a controller, and the controller is in communication connection with the water flow sensor, the inflator pump and the pressure regulating valve assembly; the controller is configured to control the inflator to inflate when the water flow sensor detects a water flow signal, and the controller controls the flow regulating valve to decrease the opening degree.

Optionally, the controller is configured to control the air dissolving device to enter the air intake state again when the accumulated water flow of the water flow sensor is greater than or equal to a first preset flow or the accumulated service time of the water flow sensor is greater than or equal to a first preset time.

Optionally, micro-nano bubble liquid generation system still includes level sensor, level sensor with the controller communication is connected, level sensor is used for detecting the liquid level height of liquid in the hybrid chamber, the controller is used for when the liquid level height is located predetermines liquid level height threshold value, control the pump to dissolve the gas device and aerify.

Optionally, the micro-nano bubble liquid generation system further comprises a micro-nano bubble generator, and the micro-nano bubble generator is connected with the liquid outlet flow path of the air dissolving device.

Further optionally, micro-nano bubble liquid generation system includes a water outlet part, a water outlet part is connected go out the end of liquid flow path, micro-nano bubble generator locates go out in the water outlet part, it is gondola water faucet or tap to go out the water part.

A water heater according to an embodiment of the present invention includes: a heating device; in the micro-nano bubble liquid generating system in each of the above examples, the air dissolving device of the micro-nano bubble liquid generating system is arranged at the water outlet end of the heating device.

According to the water heater provided by the embodiment of the invention, the heating device can input heated water into the liquid inlet flow path. By adopting the micro-nano bubble liquid generation system, the water heater works through the inflating pump, and the flow switching valve outputs small flow to quickly inflate the mixing cavity; and the gas-dissolved liquid can be quickly formed by outputting large flow through the flow switching valve and stopping the inflating pump. Finally, dissolved gas liquid with a certain temperature or micro-nano bubble water formed by the micro-nano bubble generator is conveyed to the water outlet end of the water heater, so that a user can use the water with required properties in time. All parts in the water heater are flexibly arranged, the operation is stable, water is not cut off in the gas dissolving process, and the user experience is good; the booster pump is not needed for boosting, and the noise is reduced.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic diagram of a micro-nano bubble liquid generating system according to some embodiments of the first aspect of the present invention, wherein a water flow sensor is disposed upstream of a pressure stabilizing valve and a flow regulating valve, and an air inlet path are respectively connected to different positions of an air dissolving device.

Fig. 2 is a schematic diagram of a micro-nano bubble liquid generating system according to some embodiments of the second aspect of the present invention, wherein a water flow sensor is disposed downstream of a pressure stabilizing valve and a flow regulating valve, and an air inlet path are respectively connected to different positions of an air dissolving device.

Fig. 3 is a schematic control flow diagram of a micro-nano bubble liquid generation system according to some embodiments of the present invention.

Fig. 4 is a schematic diagram of a micro-nano bubble liquid generating system according to some embodiments of the third aspect of the present invention, in which a liquid level sensor is disposed on the air dissolving device, a water flow sensor is disposed upstream of the pressure stabilizing valve and the flow regulating valve, and the air inlet path and the liquid inlet path are both communicated with the merging path.

Fig. 5 is a schematic diagram of a micro-nano bubble liquid generating system according to some embodiments of the fourth aspect of the present invention, wherein a liquid level sensor is disposed on the air dissolving device, a water flow sensor is disposed downstream of the pressure stabilizing valve and the flow regulating valve, and the air inlet path and the liquid inlet path are both communicated with the merging path.

Fig. 6 is a schematic control flow diagram of a micro-nano bubble liquid generating system according to other embodiments of the present invention.

Fig. 7 is a cross-sectional view of a flow regulating valve according to some embodiments of the present invention as it increases in opening.

Fig. 8 is a cross-sectional view of a flow regulating valve when the opening degree is reduced according to some embodiments of the present invention.

FIG. 9 is a cross-sectional view of an integrated pressure regulator valve assembly in which a first tee, a second tee, a surge relief valve, and a flow switching valve are integrated, according to some embodiments of the present invention.

FIG. 10 is a cross-sectional view of the flow regulating valve of FIG. 9 in a first gear position.

FIG. 11 is a cross-sectional view of the flow regulating valve of FIG. 9 in a second gear position.

Fig. 12 is a cross-sectional view of the regulator valve of fig. 9 open.

Fig. 13 is a cross-sectional view of the regulator valve of fig. 9 closed.

Fig. 14 is an exploded view of the integrated pressure regulator valve assembly of fig. 9.

FIG. 15 is a cross-sectional view of an integrated pressure regulator valve assembly according to further embodiments of the present invention, wherein the first tee, the pressure maintaining valve, and the flow switching valve are integrated, and the pressure maintaining valve and the outlet end of the flow switching valve are connected by a second connecting shell and then merged to the outlet.

Fig. 16 is an exploded view of the integrated pressure regulator valve assembly of fig. 15.

FIG. 17 is a schematic view of a water heater according to some embodiments of the invention.

Fig. 18 is a schematic view of an air dissolving device.

Fig. 19 is a schematic diagram of the regulation principle of the liquid outlet flow and the liquid outlet pressure of the pressure stabilizing valve and the flow switching valve which are integrally arranged.

Reference numerals:

100. a micro-nano bubble liquid generation system;

1. a gas dissolving device; 11. an air inlet; 12. a liquid inlet; 13. a liquid outlet;

14. a housing; 141. a first end cap; 142. a second end cap;

15. a partition plate; 151. a through hole; 16. a mixing chamber; 161. a liquid level sensor;

2. a power supply device; 3. a controller;

4. a water outlet member; 41. a micro-nano bubble generator;

5. an air inlet path; 51. a one-way valve; 52. an inflator pump;

6. a liquid outlet flow path; 61. a water outlet switch;

7. a liquid inlet flow path; 70. a pressure regulating valve assembly; 71. a water flow sensor;

72. a pressure maintaining valve; 721. a pressure stabilizing housing; 722. a pressure stabilizing inlet; 723. a pressure stabilizing outlet;

724. an adjustment assembly; 7241. adjusting the nut; 7242. a first elastic member; 7243. a pressure stabilizing rod;

7244. a barrier; 7245. a closure; 7246. a second elastic member;

725. a pressure stabilizing flow passage; 7251. a transition flow channel; 7252. a second intersection; 7253. a flow-through port;

726. a pressure control channel; 7261. a first intersection;

732. a second connection housing; 7321. a second manifold port;

78. a flow regulating valve;

781. a valve housing; 7811. a valve inlet; 7812. a valve outlet;

782. a flow stabilizing assembly; 7821. a flow stabilizing valve core; 7822. a flow-stabilizing valve body;

783. a drive assembly; 7831. a drive member; 7832. a barrier;

791. a first tee joint; 7911. a first liquid inlet port; 7912. a first liquid outlet port;

792. a second tee joint; 7921. a second liquid inlet port; 7922. a second liquid outlet port;

7931. a first flow passage; 7932. a second flow passage;

8. a merged channel; 82. a junction;

1000. a water heater; 200. a cold water inlet flow channel; 300. a hot water outlet flow passage; 400. a heating device.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", "axial", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The micro-nano bubble liquid generation system 100 according to the embodiment of the present invention is described below with reference to the drawings.

A micro-nano bubble liquid generating system 100 according to an embodiment of the present invention, as shown in each example of fig. 1, 2, 4 and 5, includes an air dissolving device 1, an inflator 52 and a pressure regulating valve assembly 70.

Wherein, a mixing cavity 16 is formed in the air dissolving device 1, and a liquid inlet flow path 7, an air inlet path 5 and a liquid outlet flow path 6 which are communicated with the mixing cavity 16 are formed on the air dissolving device 1. The inlet flow path 7 can introduce liquid into the mixing cavity 16, the inlet gas path 5 can introduce gas into the mixing cavity 16, and the outlet flow path 6 can discharge dissolved gas liquid formed in the mixing cavity 16 to a water using end.

Further, an inflator 52 is disposed on the intake path 5, and the inflator 52 can increase the pressure of the intake path 5 during operation, so as to promote the gas in the gas source connected to the intake path 5 to be actively fed into the mixing chamber 16.

Further, a pressure regulating valve assembly 70 is provided on the intake flow path 7, the pressure regulating valve assembly 70 including a pressure maintaining valve 72 and a flow rate regulating valve 78 provided in parallel. The pressure stabilizing valve 72 can ensure the pressure of the liquid inlet end of the gas dissolving device 1, so that the gas dissolving device 1 can feed liquid under certain pressure; and the flow regulating valve 78 itself regulates the flow. When the pressure of the pressure maintaining valve 72 is not less than the liquid outlet pressure of the flow regulating valve 78, the pressure maintaining valve 72 is opened. That is, the pressure maintaining valve 72 can adjust its opening state according to different outlet pressure states of the flow regulating valve 78. When the pressure of the pressure stabilizing valve 72 is greater than or equal to the liquid outlet pressure of the flow regulating valve 78, the pressure stabilizing valve 72 is opened, so that the liquid inlet pressure of the liquid inlet flow path 7 is stable, a certain amount of liquid in the liquid inlet flow path 7 can be ensured to flow into the air dissolving device 1 all the time, and the liquid outlet end of the air dissolving device 1 is prevented from being cut off.

It should be noted here that smooth air intake of the intake air passage 5 can also be achieved by selecting the pressure stabilizing valve 72 having different pressures. In a specific example, if the water outlet pressure of the pressure stabilizing valve 72 is P1, the air outlet pressure of the inflator 52 is P2, and the pressure P2 is controlled to be equal to or greater than P1, smooth liquid inlet of the liquid inlet flow path 7 can be realized, and smooth air inlet of the air inlet air path 5 is ensured.

Still further, the air dissolving device 1 has an intake state and an air dissolving state. In the air inlet state, the flow regulating valve 78 reduces the opening degree, the air outlet pressure of the inflator 52 is greater than the water outlet pressure of the pressure stabilizing valve 72, the inflator 52 inflates the mixing chamber 16, and the liquid existing in the mixing chamber 16 is discharged from the liquid outlet flow path 6.

In the gas-dissolved state, the flow control valve 78 increases the opening degree, the inflator 52 stops operating, and at this time, the pressure in the mixing chamber 16 increases, so that the gas in the mixing chamber 16 is dissolved in the liquid to form the gas-dissolved liquid.

As can be seen from the above structure, the micro-nano bubble liquid generation system 100 according to the embodiment of the present invention can be understood as follows: the water inlet ends of the pressure stabilizing valve 72 and the flow regulating valve 78 are intersected and connected with the liquid inlet flow path 7 (for example, connected through a pipeline), the water outlet ends of the pressure stabilizing valve 72 and the flow regulating valve 78 are intersected and then connected with the liquid inlet flow path 7 and converged into the gas dissolving device 1, after the water pressure is regulated by the pressure stabilizing valve 72, the pressure and the water flow of one end of the liquid inlet connected with the gas dissolving device 1 are regulated, and certain liquid is ensured to be contained in the gas dissolving device 1, and the water using end is not cut off. When the pressure of the pressure stabilizing valve 72 is greater than or equal to the liquid outlet pressure of the flow regulating valve 78, the pressure stabilizing valve 72 is opened, and the liquid inlet pressure of the liquid inlet flow path 7 is the same as the pressure of the pressure stabilizing valve 72. On the contrary, when the pressure of the pressure maintaining valve 72 is smaller than the liquid outlet pressure of the flow rate regulating valve 78, the pressure maintaining valve 72 is closed, and the liquid inlet pressure of the liquid inlet flow path 7 is the same as the liquid outlet pressure of the flow rate regulating valve 78. In any case, it is ensured that liquid flows into the liquid inlet flow path 7 all the time, so that the liquid outlet end of the air dissolving device 1 is not cut off, and the liquid inlet pressure of the liquid inlet flow path 7 is maintained within a certain range.

When the pressure stabilizing valve 72 operates, the liquid outlet flow of the liquid inlet flow path 7 is the sum of the liquid outlet flow of the flow regulating valve 78 and the liquid outlet flow of the pressure stabilizing valve 72; when the pressure stabilizing valve 72 is closed, the liquid outlet flow of the liquid inlet flow path 7 is the liquid outlet flow of the flow regulating valve 78, so that different liquid inlet pressures and different liquid outlet flows of the pressure regulating valve assembly 70 are regulated.

In the invention, through the cooperation action of the inflator 52 and the pressure regulating valve assembly 70, when the opening degree of the flow regulating valve 78 is reduced, the liquid inlet flow rate of the liquid inlet flow path 7 flowing into the mixing cavity 16 is reduced, at the moment, the inflator 52 rapidly inflates towards the mixing cavity 16, and the inflated gas can extrude the original liquid in the mixing cavity 16 to be discharged from the liquid outlet flow path 6; since the amount of liquid entering the mixing chamber 16 is much smaller than the amount of liquid discharged and the amount of gas entering the mixing chamber 16 increases rapidly, then a mixing chamber 16 having a certain volume will be occupied rapidly by gas, thereby achieving an efficient intake of the mixing chamber 16. Because the flow regulating valve 78 only reduces the opening degree but does not close in the air intake state, a certain amount of liquid will continuously flow into the mixing chamber 16, so that a certain amount of liquid outlet flow can be kept in the liquid outlet flow path 6 in the air intake process, and the water cut-off of the liquid outlet flow path 6 is effectively prevented.

After the gas dissolving device 1 is filled with more gas, under the condition that the mixing cavity 16 is ensured to enter sufficient gas and certain liquid is still remained in the mixing cavity 16, the opening degree of the flow regulating valve 78 is increased, so that the liquid outlet flow of the flow regulating valve 78 is rapidly increased, meanwhile, the inflating pump 52 does not work to reduce the extrusion of the filled gas on the liquid in the mixing cavity 16, the liquid inlet flow entering the mixing cavity 16 can be rapidly increased and is far larger than the liquid discharged outwards in the mixing cavity 16, the volume previously occupied by the air in the mixing cavity 16 can be rapidly occupied by the filled liquid, the pressure of the mixing cavity 16 is increased, the gas filled in the mixing cavity 16 is promoted to be rapidly dissolved in the liquid to form gas-dissolved liquid, the water end in the whole process does not need to cut off water, and reliable guarantee is provided for the subsequent formation of micro-nano bubble water.

In the invention, under the air inlet state and the air dissolving state of the mixing cavity 16, the inflator pump 52 is matched with the pressure regulating valve assembly 70, so that efficient air inlet and reliable air dissolving of the mixing cavity 16 can be realized, the water outlet flow path 6 is not cut off, and the stable and continuous operation of the micro-nano bubble liquid generating system 100 is realized.

It should be noted that the liquid in the present invention refers to a liquid in which a certain gas is dissolved, or a heated liquid, or a tap water with a certain impurity and a lower temperature, or a purified water purified by a purification device, or a relatively pure water supplied to a living water tank, and the water inlet described in the present invention refers to a liquid inlet mainly, and the water outlet refers to a liquid outlet mainly, which should be understood widely, and should not be limited to the water described in the chemical field.

Compared with the pressurizing and air dissolving method which needs a booster pump for pressurization in the prior art, the invention has the advantages of simple structure and low cost; the whole body is modularized, the size is small, the arrangement is compact, the arrangement mode of each internal part can be optimized, the device is conveniently used for small equipment, and the occupied size can be changed to meet different use scenes; the cost performance of the product is improved, the air inlet and air dissolving process is simple to control, water can not be cut off at the water end, the air can be filled midway, the condition of water flow closing does not exist, the user experience is good, and the starting speed of the whole machine is improved.

In some embodiments of the present invention, the air pressure pumped by inflator 52 is in the range of 0.1MPa to 1.2 MPa; and/or the feed pressure of the feed liquid flow path 7 is in the range of 0.01MPa to 1.2 MPa. That is, it may be that the air pressure pumped by the inflator 52 is in the range of 0.1MPa to 1.2 MPa; or the water inlet pressure of the liquid inlet flow path 7 is in the range of 0.01MPa to 1.2 MPa; the air pressure pumped by the inflator 52 can be in the range of 0.1MPa to 1.2MPa, and the water inlet pressure of the liquid inlet flow path 7 is in the range of 0.01MPa to 1.2 MPa. Therefore, the control logic can be simplified, and the production cost is reduced.

For example, the air pressure pumped by the inflator 52 may be: 0.1MPa, 0.15MPa, 0.2MPa, 0.25MPa, 0.3MPa, 0.35MPa, 0.4MPa, 0.45MPa, 0.5MPa, 0.55MPa, 0.6MPa, 0.65MPa, 0.7MPa, 0.75MPa, 0.8MPa, 0.85MPa, 0.9MPa, 0.95MPa, 1.0MPa, 1.05MPa, 1.1MPa, 1.15MPa, 1.2MPa, etc.

Then, correspondingly, the inlet water pressure of the inlet liquid flow path 7 may be: 0.01MPa, 0.05MPa, 0.1MPa, 0.15MPa, 0.2MPa, 0.25MPa, 0.3MPa, 0.35MPa, 0.4MPa, 0.45MPa, 0.5MPa, 0.55MPa, 0.6MPa, 0.65MPa, 0.7MPa, 0.75MPa, 0.8MPa, 0.85MPa, 0.9MPa, 0.95MPa, 1.0MPa, 1.05MPa, 1.1MPa, 1.15MPa, 1.2MPa and the like.

In some embodiments of the present invention, as shown in fig. 1 and fig. 2, the liquid inlet flow path 7 is communicated with the mixing chamber 16 through a liquid inlet 12, the gas inlet path 5 is communicated with the mixing chamber 16 through a gas inlet 11, the mixing chamber 16 is further provided with a liquid outlet 13, and the liquid outlet 13 is communicated with the liquid outlet flow path 6. That is, the gas dissolving device 1 has a liquid inlet 12, a gas inlet 11 and a liquid outlet 13 through its container wall, wherein the mixing chamber 16 is communicated with an external flow path or gas path through the liquid inlet 12, the gas inlet 11 and the liquid outlet 13.

When the micro-nano bubble liquid generating system 100 is used, water enters the mixing cavity 16 of the air dissolving device 1 from the liquid inlet 12, the air becomes air with higher pressure after passing through the inflator 52, the air enters the mixing cavity 16 of the air dissolving device 1 from the air inlet 11 so that a sufficient amount of gas is contained in the mixing cavity 16, the water and the air are fully mixed in the mixing cavity 16 of the air dissolving device 1 to form a solution liquid, and the solution liquid flows out from the liquid outlet 13 to a subsequent water using end or a water processing component (for example, the solution liquid becomes micro-nano bubble water after passing through the micro-nano bubble generator 41 described later, and is used by a user).

Alternatively, the liquid outlet 13 is formed at the bottom of the gas dissolving device 1, the liquid inlet 12 is formed at the top or upper part of the gas dissolving device 1, and the gas inlet 11 is formed at the top, bottom or side wall of the gas dissolving device 1. That is to say, the air inlet 11 may be formed at the top of the air dissolving device 1, the air inlet 11 may also be formed at the bottom of the air dissolving device 1, the air inlet 11 may also be formed at the side wall of the air dissolving device 1, the liquid inlet 12 may be formed at the top of the air dissolving device 1, the liquid inlet 12 may also be formed at the upper part of the air dissolving device 1, and the liquid outlet 13 is formed at the bottom of the air dissolving device 1. Therefore, different use scenes can be met according to different user requirements, and the method is flexible and convenient.

As shown in fig. 18, the liquid inlet 12 is formed at the top of the air dissolving device 1, and can increase the flow velocity of water flow and increase the air bubble content of air bubble mixed flow; the air inlet 11 is formed at the top of the air dissolving device 1, so that the structure is simple and the assembly is convenient; the liquid outlet 13 is formed in the bottom of the gas dissolving device 1, and by utilizing the gravity of water and the pressure in the gas dissolving device 1, the water can smoothly flow out without additionally arranging parts, water does not stay for a long time, the water quality is influenced, and the human health is damaged.

As shown in fig. 1 and 2, the air inlet path 5 is communicated with the mixing chamber 16 through an air inlet 11 arranged on the air dissolving device 1; the liquid inlet flow path 7 is communicated with the mixing cavity 16 through a liquid inlet 12 arranged on the air dissolving device 1, and the air inlet 11 and the liquid inlet 12 are two different ports, so that the air inlet path 5 and the liquid inlet flow path 7 are respectively connected to different positions of the air dissolving device 1, thereby separating the air inlet from the liquid inlet without mutual interference.

In other examples, the liquid inlet 12 and the gas inlet 11 are not limited to be separately provided on the air dissolving device 1, as shown in fig. 4 and 5, the liquid inlet 12 and the gas inlet 11 may also be combined into a merging port 82 to communicate with the mixing chamber 16 of the air dissolving device 1, the air dissolving device 1 further includes a merging flow path 8 communicating with the merging port 82 of the mixing chamber 16, and both the air inlet path 5 and the liquid inlet path 7 communicate with the merging flow path 8. Therefore, in these examples, either the intake liquid or the intake air flows into the mixing chamber 16 through the merging opening 82, so that the opening required to be formed in the air dissolving device 1 is saved, the sealing performance of the air dissolving device 1 is improved, and the structure of the air dissolving device 1 is simplified.

It should be noted that the converging flow path 8 may be a separate pipe, or may be formed by extending the liquid inlet flow path 7, that is, by connecting the end of the air inlet path 5 to the liquid inlet flow path 7, the air inlet 11 on the air dissolving device 1 is eliminated, and only the liquid inlet 12 is provided to connect the liquid inlet flow path 7, so that the liquid inlet and air inlet of the mixing chamber 16 can be realized.

In some embodiments of the present invention, the liquid inlet 12 is provided with a jet member for jetting a fluid into the gas dissolving device 1, and/or the liquid inlet 12 is provided with a plurality of liquid inlet holes arranged at intervals. That is, the jet member may be positioned at the position of the liquid inlet 12 of the air dissolving device 1 to jet the liquid into the mixing chamber 16, a plurality of liquid inlet holes may be formed at the position of the liquid inlet 12, and the jet member and the plurality of liquid inlet holes may be formed at the position of the liquid inlet 12. Like this, when liquid gets into and dissolves gas device 1, the liquid velocity of flow increases, has improved the area of contact of liquid with the air, makes the air bubble in dissolving gas device 1 denser to micro-nano bubble water provides firm guarantee for follow-up formation.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In some embodiments of the present invention, as shown in fig. 18, the air dissolving device 1 includes: a housing 14 and a partition 15, the housing 14 including: first end cap 141, second end cap 142 and the main cavity body, baffle 15 is located the inside of the main cavity body, be formed with through-hole 151 on the baffle 15, connect the turn-ups and cross the water tank, connect the turn-ups and the internal perisporium welded connection of main cavity body, baffle 15 separates the main cavity body and goes out hybrid chamber 16 and dissolved water chamber, hybrid chamber 16 is located the left side of baffle 15, dissolved water chamber is located the right side of baffle 15, inlet 12 is formed directly over hybrid chamber 16, liquid outlet 13 is formed in the bottom of casing 14, and liquid outlet 13 is formed in the dissolved water chamber below, air inlet 11 is formed at the top of casing 14, the main cavity body is at liquid outlet 13, air inlet 11 and inlet 12 department, all be formed with the avoidance depression towards the internal portion of main cavity, gas dissolving device 1 overall structure is simple, and is convenient for installation and maintenance, low in production cost.

In some embodiments, the ratio between the width dimension of the mixing chamber 16 in the left-right direction and the width dimension of the dissolved water chamber in the left-right direction is in the range of 1/5 to 1. That is, the ratio between the width dimension of the mixing chamber 16 and the width dimension of the dissolved water chamber in the left-right direction is in the range of 1/5 to 1, and when the ratio between the width dimension of the mixing chamber 16 and the width dimension of the dissolved water chamber is less than 1/5, the width dimension of the mixing chamber 16 in the left-right direction is small, and sufficient air bubble mixing cannot be generated in the mixing chamber 16, thereby affecting the bubble content of the dissolved water and the quality of the dissolved water; when the ratio between the width dimension of the mixing cavity 16 and the width dimension of the dissolved water cavity is greater than 1, the width dimension of the mixing cavity 16 in the left-right direction is large, the width dimension of the dissolved water cavity in the left-right direction is small, the air bubbles in the mixing cavity 16 are mixed, the amount of water to be dissolved in the dissolved water cavity is small, and the air bubbles are mixed, so that the water cannot be completely dissolved into water, thereby causing resource waste and affecting the requirement of a user for using the dissolved water.

As shown in fig. 18, in the left-right direction, the ratio of the width dimension of the mixing chamber 16 to the width dimension of the dissolved water chamber is in the range of 1/5 to 1, so that the water flow parallel to the partition 15 is prevented from impacting the partition 15 to influence the generation of air bubble mixed flow, when the water flow impacts to form the air bubble mixed flow, in the mixing chamber 16 with a relatively small space, the air bubbles in the air bubble mixed flow can be more dense, the content of micro-nano bubbles is more, and the quality of micro-nano bubble water is improved. Therefore, the generated air bubbles are mixed and dissolved into the dissolved water sufficiently, the waste of resources is avoided, and the quality of the dissolved water is ensured.

For example, in the left-right direction, the ratio between the width dimension of the mixing chamber 16 and the width dimension of the dissolved water chamber may be: 1/5, 1/4, 1/3, 1/2, 1, and so forth.

Preferably, as shown in fig. 18, the ratio between the width dimension of the mixing chamber 16 and the width dimension of the dissolved water chamber in the left-right direction is 1/2. Therefore, the sufficient content of micro-nano bubbles in the air bubble mixed flow is ensured, and the economical practicability of the air dissolving device 1 is improved.

In some embodiments, the ratio between the volume of the mixing chamber 16 and the volume of the dissolving water chamber is in the range of 1/4 to 1. When the ratio of the volume of the mixing cavity 16 to the volume of the dissolved water cavity is smaller than 1/4, the volume of the mixing cavity 16 is smaller, the air bubbles generated in the mixing cavity 16 are insufficient in mixing, and the content of the bubbles in the dissolved air liquid cannot be ensured, so that the quality of the dissolved air liquid is reduced, and the user experience is influenced; when the ratio of the volume of the mixing cavity 16 to the volume of the dissolved water cavity is greater than 1, the volume of the mixing cavity 16 is large, air bubbles in the mixing cavity 16 are mixed more, the liquid to be dissolved in the dissolved water cavity cannot be dissolved into the air bubbles as much as possible, the air bubbles are mixed more, and resource waste is caused.

In some specific examples, the ratio between the volume of the mixing chamber 16 and the volume of the dissolved water chamber may be: 1/4, 1/3, 1/2, 1, and so forth.

Optionally, the ratio between the volume of the mixing chamber 16 and the volume of the dissolving water chamber is 1/2. Therefore, the volume capacity of the dissolved water cavity is ensured to be enough for users to use, and the content of micro-nano bubbles in the air bubble mixed flow is ensured to be sufficient, so that the economical practicability of the air dissolving device 1 is improved.

In some embodiments, the ratio of the vertical dimension of the partition 15 to the vertical dimension of the cross-section of the housing 14 at the location of the partition 15 is between 0.4 and 0.9. That is to say, the upper portion or the lower part of baffle 15 and casing 14 interval form and overflow the passageway, and when the ratio between the height dimension of baffle 15 in the up-down direction and the up-down direction size of casing 14 cross baffle 15 position department cross-section was less than 0.4, the air bubble mixed flow can only get into the dissolved water chamber through the through-hole 151 of baffle 15, and the air bubble mixed flow is less, and the air bubble mixed flow is incomplete, inhomogeneous with water, has reduced the content of micro-nano bubble in the micro-nano bubble water to the quality of micro-nano bubble water has been reduced.

When the ratio of the height dimension of the partition 15 in the vertical direction to the dimension of the cross section of the position where the partition 15 is located is larger than 0.9, the distance between the upper side of the partition 15 and the upper end of the shell 14 is large, a large amount of air bubble mixed flow directly enters the dissolved water cavity from the mixing cavity 16 from the overflowing channel at the upper end of the partition 15, so that the air bubble mixed flow in the main cavity is incompletely and unevenly mixed with water, the quantity of micro-nano bubbles in the micro-nano bubble water is reduced, and the quality of the micro-nano bubble water is reduced.

Therefore, the ratio of the height dimension of the partition plate 15 in the vertical direction to the dimension of the cross section of the shell 14 passing through the partition plate 15 in the vertical direction is 0.4-0.9, so that the mixing speed of the air bubble mixed flow and water in the main cavity is accelerated, and the air bubble mixed flow and water are fully mixed.

In a specific example, the ratio of the height dimension of the partition 15 in the up-down direction to the dimension of the cross section of the housing 14 at the position where the partition 15 passes is between 0.4 and 0.9: 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, etc.

Optionally, the ratio of the height dimension of the partition 15 in the vertical direction to the dimension of the cross section of the shell 14 passing through the partition 15 in the vertical direction is 0.4, so that the quality of the micro-nano bubble water is ensured, the mixing speed of the air bubble mixed flow and the water in the main cavity is increased, and the air bubble mixed flow and the water are mixed fully.

When the water inlet pressure is lower than the air inlet pressure, the liquid inlet 12 of the air dissolving device 1 is closed, the air is pumped into the shell 14 of the air dissolving device 1 through the air inlet 11 by the inflator 52, the water in the air dissolving device 1 is discharged out of the air dissolving device 1 from the liquid outlet 13, the air enters the air dissolving device 1, and the inflator 52 stops supplying the air after the air dissolving device 1 is filled with part or all of the air. Then, the liquid inlet 12 is opened, high-pressure water enters the mixing cavity 16 of the air dissolving device 1 through the liquid inlet 12, in the high-pressure mixing cavity 16, water flow impacts to form air bubble mixed flow, the contact area of air and water is increased, the content of air dissolved in liquid is increased, finally air dissolved liquid is formed, and the air dissolved liquid flows into the water dissolving cavity through the partition plate 15.

In some embodiments of the present invention, the micro-nano bubble liquid generating system 100 further includes a one-way valve 51, and the one-way valve 51 is disposed on the air inlet path 5 to inflate the inflator 52 toward the mixing chamber 16. The one-way valve 51 can effectively control the flowing direction of the air flow in the air inlet path 5, so that the air flow can only be inflated from the inflator 52 to the mixing chamber 16 in one direction, but not in the opposite process, thereby ensuring that the pressure between the air inlet path 5 and the air dissolving device 1 is controllable, and preventing the air dissolving device 1 from releasing pressure or even being incapable of air inlet.

In some embodiments of the present invention, the flow regulating valve 78 is a flow valve with a continuously adjustable opening. The structure of the flow valve with continuously adjustable opening degree can realize the change of the flow in the channel by the rotation of the valve plate, and the specific rotation realization form of the valve plate is not described herein; so that the flow regulating valve 78 can be adjusted to work under different opening degrees according to actual requirements.

In other embodiments, the flow regulating valve 78 may also be a flow switching valve that can achieve variable output of multi-stage outlet flow.

The flow switching valve with variable output of multi-gear output liquid flow is mainly described as outputting two-gear output liquid flow.

That is to say, the flow switching valve comprises a first gear and a second gear, the liquid outlet flow of the flow switching valve in the first gear is smaller than the liquid outlet flow in the second gear, and the flow switching valve is located in the first gear in the air inlet state; and in the gas dissolving state, the flow switching valve is positioned at the second gear.

As shown in fig. 7 and 8, the flow switching valve includes a valve housing 781 having a valve inlet 7811 and a valve outlet 7812 that are communicable, a flow stabilizing assembly 782, and a driving assembly 783.

Optionally, flow stabilizing assembly 782 and drive assembly 783 are both disposed within a chamber of valve housing 781 and divide valve housing 781 into a first chamber in communication with valve inlet 7811 and a second chamber in communication with valve outlet 7812.

Optionally, two water passing channels communicated with the chambers are formed on the flow stabilizing assembly 782, a first water passing channel communicated with the first chamber and the second chamber is formed in the middle of the flow stabilizing assembly 782, and a second water passing channel communicated with the first chamber and the second chamber is formed at one end of the flow stabilizing assembly 782.

Further, the driving assembly 783 acts and controls the on-off of the first water passing channel or the second water passing channel to switch between the first gear and the second gear, so that the water yield of the valve outlet 7812 is adjusted.

Specifically, as shown in fig. 7 and 8, the flow stabilizing assembly 782 includes a flow stabilizing valve spool 7821 and a flow stabilizing valve body 7822, the flow stabilizing valve body 7822 is disposed within the valve housing 781, and both ends of the flow stabilizing valve body 7822 face the valve inlet 7811 and the valve outlet 7812, respectively; the flow stabilizing valve core 7821 is arranged in the flow stabilizing valve body 7822, and a first water passing channel is formed in the flow stabilizing valve core 7821; a second water passing channel is formed at the edge of the steady flow valve body 7822 close to the driving assembly 783, and when the output end of the driving assembly 783 moves towards the position close to the second water passing channel, the second water passing channel is closed, so that the liquid entering from the valve inlet 7811 can only flow out from the first water passing channel to the valve outlet 7812, at the moment, the flow switching valve is in the first gear, and the output of the flow switching valve is small flow, which is beneficial to the air intake of the air dissolving device 1; when the output end of the driving assembly 783 moves towards the direction far away from the second water passing channel, the second water passing channel is opened, so that liquid entering the valve inlet 7811 can flow out from the first water passing channel towards the valve outlet 7812, and liquid entering the valve inlet 7811 can flow out from the second water passing channel towards the valve outlet 7812, the flow switching valve is in a second gear, the flow switching valve outputs large flow, and the gas dissolving device 1 is facilitated to realize gas dissolving.

Alternatively, as shown in fig. 7, 8, 10 and 11, the driving assembly 783 comprises a driving member 7831 and a blocking member 7832, the blocking member 7832 is connected to the output end of the driving member 7831, and the blocking member 7832 can move relative to the second water passage to open or close the second water passage. The outer contour of the barrier 7832 is preferably configured and dimensioned to completely block the second water passage, such that the second water passage is completely blocked when the barrier 7832 is closed over the second water passage.

Alternatively, the driving member 7831 can be selected from a cylinder, a stepping motor or an electric push rod, as long as the stepping movement of the blocking member 7832 can be achieved, and is not particularly limited herein.

Alternatively, the blocking member 7832 may be made of a partition, a diaphragm, a sealing plug, etc., as long as it can block the second water passage, and is not limited herein.

The pressure stabilizing valve 72 and the flow switching valve can be respectively connected to a pipeline, and two ends of the two pipelines are respectively connected and connected to the liquid inlet flow path 7, so that the pressure stabilizing valve 72 and the flow switching valve are arranged in a split manner; it is also possible that the flow rate switching valve and the pressure maintaining valve 72 are integrally provided on the intake flow path 7.

The following description will specifically describe an integrated variable flow valve with integrated surge damping valve 72 and flow switching valve.

As shown in fig. 9, when the pressure-maintaining valve 72 and the flow-regulating valve 78 are integrally provided on the inlet flow path 7, the integrated variable flow valve has a valve inlet end and a valve outlet end, and the liquid entering from the valve inlet end can flow to the valve outlet end through the pressure-maintaining valve 72 being opened, or the liquid entering from the valve inlet end can flow to the valve outlet end through the flow-regulating valve 78. Because the flow regulating valve 78 can always maintain a certain flow capacity, the valve outlet end of the integrated adjustable flow valve always has a certain outlet flow.

The flow rate control valve 78 is explained by taking the flow rate switching valve as an example, and as shown in fig. 19, the flow rate of the flow rate switching valve in the first shift position state is assumed to be L _Small The flow rate of the flow rate switching valve in the second gear state is L _{Big (a)} The outlet pressure of the flow switching valve is P _{Valve with a valve body} The liquid outlet flow of the flow switching valve is L _{Valve with a valve body} (ii) a Pressure regulator valve 72 has a pressure P _{Voltage stabilization} The liquid outlet flow of the pressure stabilizing valve 72 is L _{Voltage stabilization} (ii) a The liquid outlet pressure of the integrated adjustable flow valve is P _{Go out} The liquid outlet flow of the integrated adjustable flow valve is L _{Go out} 。

When the integrated adjustable flow valve is in a steady flow and steady pressure state or a small flow state, the flow switching valve is in a first gear, the driving component 783 closes the second water passing channel of the flow switching valve, so that liquid can only flow out through the first water passing channel but not from the second water passing channel, and L can be obtained at the moment _{Valve with a valve body} ＝L _Small (ii) a When P is designed _{Voltage stabilization} ≥P _{Valve with a valve body} Then the surge valve 72 opens and final P _{Go out} ＝P _{Voltage stabilization} ，L _{Go out} ＝L _Small +L _{Voltage stabilization} (ii) a When P is designed _{Voltage stabilization} <P _{Valve with a valve body} Then surge valve 72 is closed and final P _{Go out} ＝P _{Valve with a valve body} ，L _{Go out} ＝L _Small 。

When the integrated adjustable flow valve is in a large-flow state, the flow switching valve is in a second gear, the driving assembly 783 opens a second water passing channel of the flow switching valve, so that liquid can flow out through the first water passing channel and the second water passing channel, and L can be obtained at the moment _{Valve with a valve body} ＝L _Small +L _{Big (a)} (ii) a When P is designed _{Voltage stabilization} ≥P _{Valve with a valve body} Then the surge valve 72 opens and final P _{Go out} ＝P _{Voltage stabilization} ，L _{Go out} ＝L _Small +L _{Big (a)} +L _{Voltage stabilization} (ii) a When P is designed _{Voltage stabilization} <P _{Valve with a valve body} Then surge valve 72 is closed and final P _{Go out} ＝P _{Valve with a valve body} ，L _{Go out} ＝L _Small +L _{Big (a)} 。

Therefore, the pressure stabilizing valve 72 not only can stabilize the liquid outlet pressure of the integrated adjustable flow valve when being opened, but also can adjust the liquid outlet flow of the integrated adjustable flow valve. When the pressure stabilizing valve 72 is closed, the liquid outlet pressure of the integrated adjustable flow valve is adjusted through the liquid outlet pressure of the flow switching valve, the liquid outlet flow of the integrated adjustable flow valve can form different large-flow water outlet, and the liquid inlet in the gas dissolving device 1 can be always kept without being completely closed.

Alternatively, as shown in fig. 9 and 15, the liquid inlet end of the flow rate switching valve and the liquid inlet end of the pressure maintaining valve 72 are connected through a first flow channel 7931, and the first flow channel 7931 connects the liquid inlet flow path 7 in the foregoing respective examples. Thus, the liquid in the liquid inlet flow path 7 can enter the first flow path 7931, and can enter the pressure maintaining valve 72 and the flow rate switching valve through the first flow path 7931.

Alternatively, as shown in fig. 9 and 15, the liquid outlet end of the flow switching valve is connected with the liquid outlet end of the pressure maintaining valve 72 through a second flow passage 7932, and the second flow passage 7932 is communicated with the gas dissolving device 1. So that both the liquid in the flow rate switching valve and the liquid in the pressure maintaining valve 72 can flow into the second flow passage 7932 and can be discharged from the second flow passage 7932 into the mixing chamber 16.

The integrated flow switching valve and the pressure stabilizing valve 72 can make the whole structure of the valve more compact, a plurality of pipelines are not required to be arranged, but flow channels communicated with each other are formed inside the valve, the valve is convenient to install, occupies less space, is flexible to arrange and is convenient to control the liquid outlet pressure and the liquid outlet flow of the integrated adjustable flow valve.

Alternatively, as shown in fig. 9 and 15, the pressure regulating valve assembly 70 further includes a first three-way valve 791, and a first inlet port 7911 of the first three-way valve 791 communicates with the inlet flow path 7, that is, the first inlet port 7911 serves as an inlet end of the first three-way valve 791.

Further, a first flow channel 7931 communicated with the first liquid inlet port 7911 is formed in the first tee 791, the first flow channel 7931 is also communicated with two first liquid outlet ports 7912, and the two first liquid outlet ports 7912 are respectively used as two liquid outlet ends; the two first liquid outlet ports 7912 are respectively connected with the liquid inlet end of the pressure stabilizing valve 72 and the liquid inlet end of the flow switching valve. Therefore, the pressure stabilizing valve 72 and the flow switching valve are integrated together at one side of the liquid inlet end through the first tee 791, and liquid is respectively shunted to the pressure stabilizing valve 72 or the flow regulating valve 78 through the first tee 791.

Optionally, the first three-way 791 and the water inlet side of the pressure maintaining valve 72 and the water inlet side of the flow switching valve are connected by threads, insertion or sealing through a sealing element, so that the connection of the first three-way 791 and the pressure maintaining valve 72 is realized.

In other examples, instead of using the first tee joint 791, the first tee joint 791 may be replaced by a first connection housing, the first connection housing is provided with a first confluence port, the first confluence port is communicated with the first flow passage 7931, the first connection housing is respectively connected with the pressure stabilizing housing 721 of the pressure stabilizing valve 72 and the valve housing 781 of the flow switching valve, and then the first connection housing is integrally provided with the pressure stabilizing housing 721 and the valve housing 781 and is partially integrally formed, so that the integrated adjustable flow valve of the present invention has a higher integration degree on the liquid inlet side.

Alternatively, the first connection shell may be a part of the pressure-stabilizing casing 721 or the valve housing 781, for example, the first connection shell may be formed by extending and connecting the pressure-stabilizing casing 721 toward the valve housing 781; the first connection shell may also be formed by extending and connecting the valve housing 781 toward the pressure stabilizing housing 721, so that it is not necessary to separately add another connection shell, but when the first connection shell is processed and manufactured, the first connection shell is formed by directly communicating the pressure stabilizing housing 721 with the liquid inlet side of the valve housing 781 to be capable of shunting, and the process of integral processing effectively prevents the liquid inlet side from leaking water.

Optionally, as shown in fig. 9, the flow switching valve further includes a second three-way 792, a second liquid outlet port 7922 of the second three-way 792 communicates with the gas dissolving device 1, that is, the second liquid outlet port 7922 is formed as a liquid outlet end of the second three-way 792; the second tee 792 has a second channel 7932 formed therein and communicating with the second liquid outlet port 7922, the second channel 7932 also communicates with two second liquid inlet ports 7921, and then the second liquid inlet port 7921 is formed as a liquid inlet side of the second tee 792. The two second liquid inlet ports 7921 are respectively connected with the liquid outlet end of the flow regulating valve 78 and the liquid outlet end of the pressure stabilizing valve 72. So that the liquid in the pressure maintaining valve 72 can flow into the gas dissolving device 1 through the second three-way 792, or the liquid in the flow rate adjusting valve 78 can flow into the gas dissolving device 1 through the second three-way 792.

Therefore, in the example in fig. 9, the whole integrated adjustable flow valve forms an integrated arrangement on both the liquid inlet side and the liquid outlet side through the three-way valve, and has the advantages of compact structure, compactness, convenience in installation, good liquid outlet pressure adjusting effect, adjustable liquid outlet flow, convenience in realizing rapid air dissolution after air inlet by the air dissolving device 1, and capability of ensuring that the water end is not cut off.

Advantageously, as shown in fig. 9, the two first outlet ports 7912 of the first tee fitting 791 and the two second inlet ports 7921 of the second tee fitting 792 are arranged coaxially and in correspondence with each other, so as to reduce the resistance to excess flow. In cooperation with the pressure stabilizing inlet 722 and the pressure stabilizing outlet 723 of the pressure stabilizing valve 72 are also coaxially arranged with the corresponding first liquid outlet port 7912 and the corresponding second liquid inlet port 7921, so that the connection is convenient and the water passing resistance is small; the valve inlet 7811 and the valve outlet 7812 of the flow regulating valve 78 are also coaxially arranged with the corresponding first liquid outlet port 7912 and the corresponding second liquid inlet port 7921, so that the connection is convenient and the water passing resistance is small.

As shown in fig. 10 and 11, in order to provide a flow switching valve in the integrated variable flow valve, the flow switching valve should be matched with the size of the outlet end of the first tee 791 and the size of the inlet end of the second tee 792, and corresponding screw structures, catching grooves matching structures or sealing matching structures are provided on the inner walls of the liquid inlet side and the liquid outlet side of the flow switching valve.

In other examples, the second tee 792 may not be used, and the second tee 792 may be replaced with a second connection shell 732 as shown in fig. 15, a second confluence port 7321 is provided on the second connection shell 732, the second confluence port 7321 communicates with the second flow channel 7932, the second connection shell 732 is respectively connected to the liquid outlet side of the surge tank shell 721 of the surge tank valve 72 and the liquid outlet side of the valve housing 781 of the flow switching valve, then the second connection shell 732 is integrally provided with the surge tank shell 721 and the valve housing 781 and is partially formed into a whole, so that the integrated variable flow valve of the present invention has a higher integration degree on the liquid outlet side.

Optionally, a thread or a quick-insertion structure may be disposed on an outer wall corresponding to the second confluence port 7321, so as to facilitate connection of the second confluence port 7321 with the liquid inlet pipe to communicate with the liquid inlet flow path 7; alternatively, a liquid inlet joint is provided on the liquid inlet 12, and the second confluence port 7321 may be connected to the liquid inlet joint through a quick-plug structure.

Alternatively, the second connection housing 732 may be a part of the pressure stabilizer housing 721 or the valve housing 781, for example, the second connection housing 732 may be formed by extending and connecting the pressure stabilizer housing 721 toward the valve housing 781; the second connection shell 732 may also be formed by extending and connecting the valve housing 781 toward the pressure stabilizing shell 721, so that other connection shells do not need to be separately added, and the liquid outlet sides of the pressure stabilizing shell 721 and the valve housing 781 are directly communicated to form the second connection shell 732 for confluence during processing and manufacturing, thereby effectively preventing water leakage from the liquid outlet sides through an integrated processing process.

In the description of the present invention, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between the described features, whether they are sequential or not.

Alternatively, as shown in fig. 12 and 13, a schematic structure of a pressure maintaining valve 72 arranged in the integrated adjustable flow valve is shown. The pressure maintenance valve 72 includes a pressure regulator housing 721 and a regulator assembly 724.

The regulating assembly 724 is disposed in the pressure stabilizing housing 721, the pressure stabilizing housing 721 includes a pressure stabilizing inlet 722, a pressure stabilizing outlet 723 and a pressure stabilizing runner 725, the pressure stabilizing runner 725 is respectively communicated with the pressure stabilizing inlet 722 and the pressure stabilizing outlet 723, and the regulating assembly 724 operates to control the conduction or the cutoff of the pressure stabilizing runner 725. That is, the regulator block 724 controls the regulator channel 725 to open or close, so that the regulator valve 72 communicates with or blocks the first and

second channels

7931 and 7932.

Alternatively, as shown in fig. 12 and 13, a pressure control passage 726 is further provided in the pressure stabilization housing 721 to mount the adjustment block 724, the pressure control passage 726 is disposed to intersect with the pressure stabilization passage 725, and the adjustment block 724 is movable in the pressure control passage 726, thereby connecting or disconnecting the pressure stabilization passage 725 to or from the pressure stabilization outlet 723.

In these examples, the adjustment assembly 724, when it extends into the regulator channel 725, may be subject to pressure from the fluid in the regulator channel 725. For example, in a particular example, the adjustment assembly 724 may change position relative to the regulator channel 725 as it moves, thereby changing the on-off relationship between the regulator channel 725 and the regulator outlet 723.

Alternatively, as shown in fig. 12, 13 and 16, the adjusting assembly 724 includes a pressure stabilizing rod 7243, an adjusting nut 7241 and a first elastic member 7242, the adjusting nut 7241 being adjustably coupled in the pressure controlling channel 726, the pressure stabilizing rod 7243 being telescopically movably disposed in the pressure controlling channel 726, the first elastic member 7242 being disposed between the pressure stabilizing rod 7243 and the adjusting nut 7241. When the adjusting nut 7241 acts, the extrusion force of the first elastic element 7242 on the pressure stabilizing rod 7243 can be changed, and the outlet pressure P of the pressure stabilizing valve 72 can be adjusted _{Voltage stabilization} Therefore, the pressure maintaining valve 72 can adapt to different systems for use, and the use flexibility of the pressure maintaining valve 72 is improved.

Alternatively, as shown in fig. 12, the pressure stabilizing runner 725 includes a pressure stabilizing inflow channel communicating with the pressure stabilizing inlet 722, a pressure stabilizing outflow channel communicating with the pressure stabilizing outlet 723, and a transition runner 7251 communicating with the pressure stabilizing inflow channel and the pressure stabilizing outflow channel, respectively, the pressure controlling channel 726 communicates with the pressure stabilizing inflow channel through a first junction 7261, the bottom end of the pressure controlling channel 726 communicates with the transition runner 7251 through a second junction 7252, the transition runner 7251 communicates with the pressure stabilizing outlet 723 through a flow passage 7253, and the pressure stabilizing rod 7243 opens and closes the second junction 7252. When the surge lever 7243 opens the second junction 7252, fluid entering the surge inflow channel from the surge inlet 722 can enter the pressure control channel 726 from the first junction 7261 and pass through the pressure control channel 726 from the second junction 7252 to the transition channel 7251, and then fluid can pass from the transition channel 7251 to the surge outlet channel through the outlet 7253.

Optionally, as shown in fig. 12 and 13, a blocking member 7244 and a sealing member 7245 are axially arranged on the pressure stabilizing rod 7243 at intervals, the sealing member 7245 is always sealed at one end of the pressure control channel 726 close to the first elastic member 7242, so that the liquid entering the pressure stabilizing flow channel 725 is effectively prevented from entering the position of the pressure control channel 726 provided with the adjusting nut 7241, the stay time of the liquid in the pressure stabilizing valve 72 is saved, and the resistance is reduced.

Advantageously, as shown in fig. 12, the barrier 7244 is vertically attached to the stabilizer bar 7243, the barrier 7244 is disposed at an end of the stabilizer bar 7243 remote from the adjustment nut 7241, the stabilizer bar 7243 passes through the second intersection 7252 and extends into the transition duct 7251, and the stabilizer bar 7243 drives the barrier 7244 to move in the transition duct 7251.

Further, when the surge rod 7243 moves in a direction approaching the adjusting nut 7241, the barrier member 7244 blocks at the second intersection 7252, and the liquid in the surge inlet 722 cannot enter the transition flow passage 7251 and cannot flow out toward the surge outlet 723, and the surge valve 72 is closed. When the surge rod 7243 moves in the direction of the transition channel 7251, the barrier 7244 opens the second intersection 7252, and fluid in the surge inlet 722 can enter the transition channel 7251 and flow out of the surge outlet 723, with the surge valve 72 open.

Further, when P is _{Voltage stabilization} ≥P _{Valve with a valve body} At this time, the surge valve 72 is in an open state in which the surge rod 7243 is moved toward the transition flow passage 7251 by the first elastic member 7242, and the barrier member 7244 is spaced apart from the second intersection 7252, so that the liquid in the surge flow passage 725 can flow from the surge inlet 722 through the first intersection 7261, the second intersection 7252, the flow passage 7253 toward the surge outlet 723.

Otherwise, P _{Voltage stabilization} <P _{Valve with a valve body} At the time, the regulator valve 72 is in a closed state, and the blocking member 7244 is blocked at the second intersection 7252, so that the liquid in the regulator channel 725 cannot flow out toward the regulator outlet 723.

Optionally, the adjusting assembly 724 further comprises a second elastic member 7246, and the second elastic member 7246 is disposed between the blocking member 7244 and the transition flow passage 7251, so that the acting force of the pressure stabilizing rod 7243 in the axial direction can be more balanced, and the pressure stabilizing rod can flow out of the liquid outlet pressure P of the flow switching valve _{Valve with a valve body} When the pressure maintaining valve 72 is changed, the opening and closing states of the pressure maintaining valve 72 are adjusted in time.

In some embodiments of the present invention, as shown in fig. 1, fig. 2, fig. 4, and fig. 5, the micro-nano bubble liquid generating system 100 further includes a water flow sensor 71, where the water flow sensor 71 is disposed on the liquid inlet flow path 7 to detect a liquid inlet flow rate of the liquid inlet flow path 7. Therefore, whether the liquid flows through and the flow rate of the liquid flowing through can be detected in real time. The water flow sensor 71 is in communication connection with the controller 3, so that the controller 3 can accurately control the water inflow and the water inflow pressure in the mixing chamber 16, resources are saved, and sufficient liquid can be ensured to meet dissolved air.

Optionally, the micro-nano bubble liquid generating system 100 further comprises a controller 3, and the controller 3 is connected to the water flow sensor 71, the inflator 52 and the pressure regulating valve assembly 70 in a communication manner.

Further, the controller 3 is configured to control the inflator 52 to be activated to inflate when the water flow sensor 71 detects the water flow signal, and the controller 3 controls the flow regulating valve 78 to decrease the opening degree. Thereby enabling the controller 3 to control the inflator 52 to perform the operation of quickly switching the mixing chamber 16 to the air intake state upon receiving the water flow signal detected by the water flow sensor 71.

In order to further increase the necessity of controlling the air intake, as shown in fig. 1, fig. 2, fig. 4 and fig. 5, the micro-nano bubble liquid generating system 100 further includes a water outlet switch 61, the water outlet switch 61 is disposed on the liquid outlet flow path 6 of the air dissolving device 1, the water outlet switch 61 is in communication connection with the controller 3, and when the water outlet switch 61 is opened, the controller 3 controls the mixing chamber 16 to be in the air intake state. That is, when the water outlet switch 61 is turned on, it indicates that the water end connected to the water outlet flow path 6 needs to use water, and at this time, the liquid will pass through the liquid inlet flow path 7, so that when the water flow sensor 71 detects that the liquid passes through, the controller 3 can control the inflator 52 to operate, and the air inlet path 5 can be promoted to inlet air into the mixing chamber 16.

Alternatively, as shown in fig. 2 and 5, the water flow sensor 71 is provided downstream of the pressure regulating valve assembly 70 in the water flow direction, for example, as shown in fig. 2, on the inlet flow path 7 and in front of the inlet 12; for example, as shown in fig. 5, the flow path is provided on the junction flow path 8 and is positioned in front of the junction 82.

Or in other alternative examples, as shown in fig. 1 and 4, the water flow sensor 71 is provided upstream of the pressure regulating valve assembly 70 in the water flow direction. Therefore, the installation is convenient for users to install according to different requirements, the operation is convenient, and the application range is enlarged.

When the air dissolving device 1 is in the process of air dissolving operation for a certain time, the liquid outlet flow path 6 will continuously discharge a certain amount of air dissolving liquid, the water flow sensor 71 will continuously detect the water flow, and the water outlet switch 61 is also continuously in the on state, at this time, the circulation control program can be executed through the further control program, so as to realize liquid discharging and air intake in the middle of operation.

Further, the controller 3 is configured to control the air dissolving device 1 to enter the air intake state again when the accumulated water flow rate of the water flow sensor 71 is equal to or greater than the first preset flow rate L1 or the accumulated usage time of the water flow sensor 71 is equal to or greater than the first preset time T4. That is, in this case, the controller 3 controls the flow regulating valve 78 to decrease the opening degree again, and controls the inflator 52 to inflate, so as to rapidly charge air into the mixing chamber 16, thereby implementing the air charging and discharging processes of the air dissolving device 1 during operation, supplementing air in the mixing chamber 16, and increasing the content of air in the mixing chamber 16.

Alternatively, as shown in fig. 3 and 6, in the dissolved air state, the controller 3 may control the flow rate adjustment valve 78 to operate at the small water flow rate operation time T2 and control the inflator 52 to operate at the operation time T3, thereby achieving air intake of the mixing chamber 16. The gas entering the mixing chamber 16 is sufficient and it is ensured that a certain amount of liquid remains in the mixing chamber 16.

Alternatively, after the water outlet switch 61 is turned off, the controller 3 is configured to control the mixing chamber 16 to be in the air inlet state again when the water outlet switch 61 is turned off for a time period longer than a second preset time T5 and the water outlet switch 61 is turned on again, that is, the water flow sensor 71 does not detect that the water flow rate (no water flow signal) is longer than T5 continuously, so that a certain amount of dissolved air liquid is always kept in the mixing chamber 16.

In other examples, when the water outlet switch 61 is turned on again when the water outlet switch 61 is turned off last time and the accumulated water flow rate of the water flow sensor 71 is greater than the second preset flow rate L2, the controller 3 controls the mixing chamber 16 to be in the air inlet state again, so that the air in the mixing chamber 16 is supplemented. Thus, different control processes can be realized under different operation states.

In some embodiments of the present invention, as shown in fig. 4 and 5, the micro-nano bubble liquid generating system 100 further includes a liquid level sensor 161, the liquid level sensor 161 is in communication connection with the controller 3, the liquid level sensor 161 is configured to detect a liquid level height of the liquid in the mixing chamber 16, and as shown in fig. 6, the controller 3 is configured to control the inflator 52 to inflate the air dissolving device 1 when the liquid level height is at a preset liquid level height threshold. The device is beneficial to more accurately judging and controlling the air inlet and air dissolving processes in the mixing cavity 16, so that the quality of the air dissolving liquid flowing out of the liquid outlet flow path 6 is further ensured, reliable guarantee is provided for the subsequent formation of micro-bubble water, and the air content density of the micro-bubble water is ensured.

Alternatively, when the liquid level sensor 161 detects that the liquid level is lower than the lower limit value of the preset liquid level threshold, the controller 3 controls the inflator 52 to stop, so as to control the amount of the gas finally supplemented into the mixing chamber 16, ensure that the gas filled in the mixing chamber 16 is enough, ensure that a certain amount of liquid still exists in the mixing chamber 16, and effectively prevent the water cut-off at the water end.

Further, the controller 3 is further configured to keep the inflator 52 stopped when the liquid level is lower than the lower limit of the preset liquid level threshold, and control the flow regulating valve 78 to increase the opening degree, so that the pressure regulating valve assembly 70 is in a large flow state, thereby enabling the pressure regulating valve assembly 70 to rapidly supply liquid to the mixing chamber 16, increasing the pressure in the mixing chamber 16, and promoting the gas in the mixing chamber 16 to be dissolved in the liquid as soon as possible.

In some embodiments of the present invention, the micro-nano bubble liquid generating system 100 further includes a micro-nano bubble generator 41, and the micro-nano bubble generator 41 is connected to the liquid outlet flow path 6 of the air dissolving device 1, and is configured to convert the air dissolving liquid into micro-nano bubble water.

Optionally, the micro-nano bubble generator 41 may include a micro-nano bubbler having an axially through micro-nano bubble water micro-channel formed therein, the micro-nano bubble water micro-channel may have a venturi structure, one or more micro-nano bubble water micro-channels may be provided, and the dissolved air water in the bubble water micro-channel is discharged through the micro-nano bubble water micro-channel, so that micro-nano bubble water with high micro-nano bubble density may be generated.

Optionally, a gap water flow channel is arranged in the micro-nano bubble generator 41. Because the water hole size of the micro-nano bubble water micro-channel of the micro-nano bubble generator 41 is small, especially when the water pressure of the inlet water is small, the water outlet amount is small, and the normal water demand of the user is difficult to meet. Therefore, the micro-nano bubble generator 41 may be provided with a gap water passing channel besides the micro-nano bubble water micro-channel, when the water pressure of the inlet water is low, the gap water passing channel may be turned on to increase the water output of the micro-nano bubble generator 41, and when the water pressure of the inlet water is high, the gap water passing channel may be turned off to allow the micro-nano bubble water to flow out of the micro-nano bubble water micro-channel of the micro-nano bubble generator 41.

In some embodiments of the present invention, the micro-nano bubble liquid generating system 100 further includes a water outlet member 4, the water outlet member 4 is connected to the end of the liquid outlet flow path 6 (i.e. the end of the liquid outlet flow path 6 away from the liquid outlet 13), and the micro-nano bubble generator 41 is disposed in the water outlet member 4, so as to reduce the dissipation of the micro-nano bubbles in the liquid outlet flow path 6, and further improve the quality of the micro-nano bubble water. The water outlet member 4 is directly exposed to the water using end, and the installation and maintenance are convenient.

Optionally, the water outlet 4 is a shower head, for example, the shower head can be a shower head on a kitchen sink in a kitchen, or a shower head of shower water, or a shower head in a dishwasher, so that the micro-nano bubble water flowing out of the water outlet 4 can increase the cleaning effect and the sterilization effect of the outlet. For example, clean cleaning of vegetables, fruits and meat can be realized; but also can realize the clean and clean of the dishes.

Optionally, the water outlet member 4 is a water tap, for example, a water tap on a kitchen sink or a water tap on a wash basin for domestic water, so that the micro-nano bubble water flowing out of the water outlet member 4 can also increase the degradation of the pesticide residue on the vegetables and kill bacteria and viruses.

In some embodiments of the present invention, the micro-nano bubble liquid generating system 100 further includes a power supply 2 (the position of the power supply 2 can be shown in fig. 17), and the power supply 2 is connected to the controller 3, so as to supply the controller 3 with the required power, so that the controller 3 can operate normally.

The water heater 1000 according to the embodiment of the invention is described below with reference to the drawings of the specification, and the water heater 1000 may be a gas water heater or an electric water heater, so that the gas dissolving effect and the water outlet cleaning power of the water outlet end of the water heater 1000 are greatly improved.

A water heater 1000 according to an embodiment of the present invention includes: a heating device 400 and the micro-nano bubble liquid generating system 100 in the foregoing aspects of examples.

As shown in fig. 17, the air dissolving device 1 of the micro-nano bubble liquid generating system 100 is disposed at the water outlet end of the heating device 400. In these examples, the heated hot water in the heating device 400 enters the air dissolving device 1 through the inlet flow path 7, so that the dissolved air liquid flowing out from the outlet flow path 6 also has a higher temperature, and the hot water with a higher temperature is supplied to the outside of the water heater 1000.

As can be seen from the above structure, in the water heater 1000 according to the embodiment of the present invention, the heating device 400 can input heated water into the liquid inlet flow path 7. By adopting the micro-nano bubble liquid generating system 100, the water heater 1000 can be operated by the inflator 52, and the flow regulating valve 78 outputs a small flow to rapidly inflate the air into the mixing chamber 16.

A large flow is output through the flow regulating valve 78 and the inflator 52 is not operated to quickly form the gas-dissolved liquid. Finally, the dissolved gas liquid with a certain temperature or the micro-nano bubble water formed by the micro-nano bubble generator 41 is delivered to the water outlet end of the water heater 1000, so that the user can use the water with the required property in time. All parts in the water heater 1000 are flexibly arranged, the operation is stable, water is not cut off in the gas dissolving process, and the user experience is good; the booster pump is not needed for boosting, and the noise is reduced.

Alternatively, the heating device 400 may be a heating liner provided with an electric heating pipe, which is mainly applicable to an electric water heater, and the electric heating pipe heats water in the heating liner.

Alternatively, the heating device 400 may be a combination of a fin heat exchanger and a gas burning source, which is mainly suitable for a gas water heater, wherein the gas heats the fin heat exchanger, and water is heated after flowing out from the fin heat exchanger.

Alternatively, as shown in fig. 17, the water heater 1000 includes: a cold water inlet channel 200, a hot water outlet channel 300, a heating device 400 and a micro-nano bubble liquid generating system 100.

Wherein, the water outlet end of the cold water inlet channel 200 is connected with the water inlet end of the heating device 400, the water inlet end of the hot water outlet channel 300 is connected with the water outlet end of the heating device 400, and the water outlet end of the hot water outlet channel 300 is connected with the air dissolving device 1.

In the specific example, a mixing chamber 16 is formed within the gas dissolving device 1. An air inlet 11, a liquid inlet 12 and a liquid outlet 13 are formed on the air dissolving device 1, the air inlet 11 is formed at the top of the air dissolving device 1, an air inlet path 5 is connected with the air inlet 11, an inflator pump 52 is connected on the air inlet path 5, the controller 3 is in communication connection with the inflator pump 52, and a one-way valve 51 is connected in series at one side of the air inlet path 5 close to the air dissolving device 1. The liquid inlet 12 is formed at the top of the dissolved air device 1, the first section of the liquid inlet flow path 7 is connected with the heating device 400, the second section of the liquid inlet flow path 7 is connected with the liquid inlet 12 and the hot water outlet flow path 300, the water flow sensor 71 is arranged in the liquid inlet flow path 7, and the controller 3 is in communication connection with the water flow sensor 71. As shown in fig. 17, the outlet end of the hot water outlet flow passage 300 is connected to the inlet flow path 7. The liquid outlet 13 is formed at the bottom of the gas dissolving device 1, the liquid outlet 13 is connected with the liquid outlet flow path 6, and the water outlet switch 61 is connected in series with the liquid outlet flow path 6. The tail end of the liquid outlet flow path 6 is provided with a water outlet part 4, and the micro-nano bubble generator 41 is positioned in the water outlet part 4.

When the water heater 1000 is used, under the condition that the water inlet pressure is lower than the air inlet pressure, cold water flows into the heating device 400 of the water heater 1000 through the cold water inlet flow channel 200, the cold water is converted into hot water in the heating device 400, the hot water flows into the mixing cavity 16 of the air dissolving device 1 through the hot water outlet flow channel 300 through the liquid inlet flow channel 7 of the micro-nano bubble liquid generating system 100, and meanwhile, a water flow signal is sent by the water flow sensor 71 and transmitted to the controller 3. When the liquid level sensor 161 in the air dissolving device 1 detects that the liquid level height in the mixing chamber 16 is at the preset liquid level height threshold value, a signal is transmitted to the controller 3, the controller 3 controls the inflator 52 to start, and the inflator 52 pumps high-pressure air into the mixing chamber 16; at the same time, the flow control valve 78 reduces the opening and operates at a low flow rate, reducing the liquid delivered to the mixing chamber 16.

When there is sufficient air in the mixing chamber 16, the controller 3 controls the flow regulating valve 78 to increase the opening degree and operate at a large water flow rate, and controls the inflator 52 to stop operating. At this time, more liquid is introduced into the mixing chamber 16, the air in the air dissolving device 1 is gradually reduced, the pressure in the mixing chamber 16 is increased, and the liquid is mixed with the high-pressure air to dissolve the air in the liquid to form the air dissolving liquid. Therefore, the quality of the micro-nano bubble water is ensured, and the use experience of a user is improved.

The micro-nano bubble liquid generating system 100 of the present invention may be used not only in the water heater 1000 described above, but also in other household appliances, such as a cosmetic instrument or a dishwasher, so that the micro-nano bubble liquid generating system 100 of the present invention has a wider application range.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The principle of micro-nano bubble generation in the micro-nano bubble liquid generating system 100 and the water heater 1000 according to the embodiment of the present invention, and the communication manner between the controller 3 and the components such as the inflator 52, the pressure regulating valve assembly 70, the water flow sensor 71, etc. are known to those skilled in the art, and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A micro-nano bubble liquid generation system, comprising:

the air dissolving device is internally provided with a mixing cavity, a liquid inlet flow path, a gas inlet path and a liquid outlet flow path which are communicated with the mixing cavity are formed on the air dissolving device, and the air dissolving device has a gas inlet state and a gas dissolving state;

the inflator pump is arranged on the air inlet path;

the pressure regulating valve assembly is arranged on the liquid inlet flow path and comprises a pressure stabilizing valve and a flow regulating valve which are arranged in parallel, and the pressure stabilizing valve is opened when the pressure of the pressure stabilizing valve is not less than the liquid outlet pressure of the flow regulating valve;

in the air inlet state, the opening degree of the flow regulating valve is reduced, the air outlet pressure of the inflator pump is greater than the water outlet pressure of the pressure stabilizing valve, the inflator pump inflates the mixing cavity, and the mixing cavity discharges liquid from the liquid outlet flow path;

and in the gas dissolving state, the flow regulating valve increases the opening degree, the inflator pump stops running, and the gas in the mixing cavity is dissolved in the liquid.

2. The micro-nano bubble liquid generating system according to claim 1, wherein the air inlet path and the liquid inlet path are respectively connected to different positions of the air dissolving device; or, dissolve the gas device still include with the flow path that converges of hybrid chamber intercommunication, the gas circuit that admits air with the feed liquor flow path all communicates converge the flow path.

3. The micro-nano bubble liquid generating system according to claim 1, further comprising a one-way valve disposed on the air inlet path to inflate the inflator pump toward the mixing chamber.

4. The micro-nano bubble liquid generating system according to claim 1, wherein the flow regulating valve is a flow valve with a continuously adjustable opening degree.

5. The micro-nano bubble liquid generating system according to claim 1, wherein the flow regulating valve is a multi-stage flow switching valve with variable output of liquid flow.

6. The micro-nano bubble liquid generating system according to claim 5, wherein the flow switching valve includes a first gear and a second gear, the outflow flow rate of the flow switching valve in the first gear is smaller than the outflow flow rate in the second gear, and the flow switching valve is located in the first gear in the air intake state; and in the dissolved air state, the flow switching valve is positioned at the second gear.

7. The micro-nano bubble liquid generating system according to claim 6, wherein the flow switching valve and the pressure stabilizing valve are integrally arranged on the liquid inlet flow path.

8. The micro-nano bubble liquid generating system according to claim 7, wherein a liquid inlet end of the flow switching valve is connected with a liquid inlet end of the pressure stabilizing valve through a first flow channel, and the first flow channel is connected with the liquid inlet flow path; and/or the liquid outlet end of the flow switching valve is connected with the liquid outlet end of the pressure stabilizing valve through a second flow passage, and the second flow passage is communicated with the gas dissolving device.

9. The micro-nano bubble liquid generating system according to claim 8, wherein the pressure regulating valve assembly further comprises a first tee joint, a first liquid inlet port of the first tee joint is communicated with the liquid inlet flow path, the first tee joint is internally provided with the first flow channel communicated with the first liquid inlet port, the first flow channel is further communicated with two first liquid outlet ports, and the two first liquid outlet ports are respectively connected with a liquid inlet end of the pressure stabilizing valve and a liquid inlet end of the flow switching valve.

10. The micro-nano bubble liquid generating system according to claim 8 or 9, wherein the flow switching valve further comprises a second tee joint, a second liquid outlet port of the second tee joint is communicated with the gas dissolving device, the second tee joint is formed with a second flow channel communicated with the second liquid outlet port, the second flow channel is further communicated with two second liquid inlet ports, and the two second liquid inlet ports are respectively connected with a liquid outlet end of the flow regulating valve and a liquid outlet end of the pressure stabilizing valve.

11. The micro-nano bubble liquid generating system according to claim 7, wherein the flow switching valve comprises a valve housing, a flow stabilizing assembly and a driving assembly, the valve housing is provided with a valve inlet and a valve outlet which can be communicated, a chamber is arranged in the valve housing and is communicated with the valve inlet and the valve outlet, the flow stabilizing assembly and the driving assembly are both arranged in the chamber, two water passing channels communicated with the chamber are formed on the flow stabilizing assembly, and the driving assembly acts and controls the on-off of one of the water passing channels so as to switch between the first gear and the second gear.

12. The micro-nano bubble liquid generating system according to claim 7, wherein the pressure stabilizing valve comprises a pressure stabilizing housing and an adjusting assembly, the pressure stabilizing housing comprises a pressure stabilizing inlet, a pressure stabilizing outlet and a pressure stabilizing flow passage, the pressure stabilizing flow passage is respectively communicated with the pressure stabilizing inlet and the pressure stabilizing outlet, and the adjusting assembly controls the pressure stabilizing flow passage to be conducted or cut off.

13. The micro-nano bubble liquid generating system according to claim 1, further comprising a water flow sensor disposed on the liquid inlet flow path to detect a liquid inlet flow rate of the liquid inlet flow path.

14. The micro-nano bubble liquid generating system according to claim 13, further comprising a controller, wherein the controller is in communication connection with the water flow sensor, the inflator pump and the pressure regulating valve assembly; the controller is configured to control the inflator to inflate when the water flow sensor detects a water flow signal, and the controller controls the flow regulating valve to decrease the opening degree.

15. The micro-nano bubble liquid generating system according to claim 14, wherein the controller is configured to control the air dissolving device to enter the air intake state again when the accumulated water flow of the water flow sensor is greater than or equal to a first preset flow or the accumulated service time of the water flow sensor is greater than or equal to a first preset time.

16. The micro-nano bubble liquid generating system according to claim 14, further comprising a liquid level sensor in communication connection with the controller, wherein the liquid level sensor is configured to detect a liquid level height of the liquid in the mixing chamber, and the controller is configured to control the inflator to inflate the air dissolving device when the liquid level height is within a preset liquid level height threshold.

17. The micro-nano bubble liquid generating system according to claim 1, further comprising a micro-nano bubble generator, wherein the micro-nano bubble generator is connected with the liquid outlet flow path of the air dissolving device.

18. The micro-nano bubble liquid generating system according to claim 17, further comprising a water outlet member, wherein the water outlet member is connected to a terminal of the water outlet flow path, the micro-nano bubble generator is disposed in the water outlet member, and the water outlet member is a shower head or a faucet.

19. A water heater, comprising:

a heating device;

the micro-nano bubble liquid generating system according to any one of claims 1 to 18, wherein an air dissolving device of the micro-nano bubble liquid generating system is arranged at a water outlet end of the heating device.