CN216878801U

CN216878801U - Micro-nano bubble liquid generation system and water heater

Info

Publication number: CN216878801U
Application number: CN202123456384.2U
Authority: CN
Inventors: 梁国荣; 刘琼富; 沈黎峰
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: 2022-07-05
Anticipated expiration: 2031-12-31
Also published as: CN114832658A; CN114832662A; CN217646211U; CN217016138U; CN114832659A; CN114832660A; CN217527059U; CN217527057U; CN114832661A; CN216878799U; CN217646209U; CN217646208U; CN114832663A; CN114832664A

Abstract

The utility model discloses a micro-nano bubble liquid generating system and a water heater, wherein the micro-nano bubble liquid generating system comprises an air dissolving device, a pressure regulating valve assembly and a pump body, a mixing cavity is arranged in the air dissolving device, an air path and a flow path communicated with the mixing cavity are formed in the mixing cavity, one end of a converging flow path is communicated with an air inlet air path and the other end of a liquid inlet flow path is communicated with the mixing cavity, the pressure regulating valve assembly is arranged on the liquid inlet flow path and is used for regulating the liquid flow of the liquid inlet flow path, the pump body is arranged on the converging flow path, the liquid flow of the liquid inlet flow path is reduced by the pressure regulating valve assembly in an air inlet state, the pump body operates to pump liquid separated from the liquid inlet flow path so that the air inlet air path can inlet air to the mixing cavity, the pressure regulating valve assembly increases the flow of the liquid inlet flow path in the air dissolving state, the pump body stops operating, and gas in the mixing cavity is dissolved in the liquid to form air dissolving liquid. The micro-nano bubble liquid generation system provided by the embodiment of the utility model can realize high-efficiency air inlet, and the condition that no water exists at a water using end in the air inlet process is avoided.

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, No. 02/01, and claims priority from the chinese patent application, the entire contents of which are incorporated herein by reference.

Technical Field

The utility model 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.

Also some micro-nano bubble water is in the production process, and gaseous flow is comparatively difficult, leads to unable sufficient gas of effectively fusing into in the liquid to the quality that leads to the micro-nano bubble liquid that generates is poor and generate inefficiency, and forms the in-process that dissolves gas liquid in gas dissolves in liquid, and water is unable to go out usually at the water terminal, leads to the user to need to wait for a period of time can use micro-nano bubble water.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a micro-nano bubble liquid generation system which is stable and controllable in pressure, high in dissolved gas liquid generation efficiency and simple in system operation, and solves the technical problems of large amount, high cost and low cost performance of a traditional pressurizing dissolved gas operation in the prior art.

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

According to the embodiment of the utility model, the micro-nano bubble liquid generation system comprises: the air dissolving device is internally provided with a mixing cavity, an air inlet air path, a liquid inlet flow path, a converging flow path and a liquid outlet flow path which are communicated with the mixing cavity are formed on the air dissolving device, the air inlet air path and one end of the liquid inlet flow path are communicated with the converging flow path, and the other end of the converging flow path is communicated with the mixing cavity; the pressure regulating valve assembly is arranged on the liquid inlet flow path and is used for regulating the liquid flow of the liquid inlet flow path; the pump body is arranged on the converging flow path, the air dissolving device has an air inlet state and an air dissolving state, the pressure regulating valve component reduces the liquid flow of the liquid inlet flow path in the air inlet state, and the pump body operates to pump the liquid away from the liquid inlet flow path so as to enable the air inlet flow path to feed air to the mixing cavity; under the gas dissolving state, the pressure regulating valve component increases the flow of the liquid inlet flow path, the pump body stops running, and the gas in the mixing cavity is dissolved in the liquid to form gas dissolving liquid.

According to the micro-nano bubble liquid generation system provided by the embodiment of the utility model, the pump body is matched with the pressure regulating valve assembly to regulate the pressure of the liquid inlet flow path, so that the air inlet gas path can quickly feed air into the mixing cavity on the premise of controlling the pressure of the liquid inlet flow path to be stable, the mixing cavity is filled with gas, and the air inlet efficiency is improved; and can be full of more gas in the mixing chamber after, the flow of increase feed liquor flow path is in order to steadily promote the pressure in the mixing chamber towards the mixing chamber feed liquor, promotes the gas in the mixing chamber and dissolves in liquid fast and form and dissolve gas liquid, and the condition of cutting off the water can not appear in whole process water end, provides the guarantee for follow-up formation micro-nano bubble water. And this application is through establishing the pump body on converging the road to make the pump body be located the upper reaches of hybrid chamber, thereby reduce the drawing liquid pressure of the pump body, prolong the life of the pump body.

According to the micro-nano bubble liquid generation system provided by some embodiments of the utility model, the pressure regulating valve assembly comprises a flow regulating valve and a pressure stabilizing valve which are arranged in parallel, and the flow regulating valve is used for regulating the liquid flow of the liquid inlet flow path; the flow regulating valve reduces the liquid flow of the liquid inlet flow path and the pump body operates to enable the air dissolving device to be in an air inlet state.

According to the micro-nano bubble liquid generation system provided by the utility model, the pressure regulating valve assembly comprises a normally open valve or a normally closed valve and a pressure stabilizing valve, the normally open valve or the normally closed valve is used for regulating the on-off of liquid, and the pressure stabilizing valve is connected with the normally open valve or the normally closed valve in parallel; the pressure stabilizing valve is opened when the normally open valve is closed or the normally closed valve is closed, and the pump body operates to enable the air dissolving device to be in an air inlet state.

Optionally, the liquid inlet flow path includes a first liquid inlet flow path and a second liquid inlet flow path connected at a liquid inlet side, a liquid outlet end of the first liquid inlet flow path is communicated with a gas outlet end of the gas inlet path to the converging flow path, the first liquid inlet flow path is provided with a flow regulating valve, a normally open valve or a normally closed valve, and the second liquid inlet flow path is provided with the pressure stabilizing valve; and the liquid outlet side of the second liquid inlet flow path is connected with the converging flow path or the liquid outlet flow path.

Optionally, when the liquid outlet side of the second liquid inlet flow path is connected to the merging flow path, the liquid outlet side is located on the front side or the rear side of the pump body.

According to the micro-nano bubble liquid generation system provided by some embodiments of the utility model, the micro-nano bubble liquid generation system is characterized by further comprising a one-way valve, wherein the one-way valve is arranged on the air inlet path so as to enable gas to flow from the air inlet path to the mixing cavity in a one-way manner.

Optionally, the micro-nano bubble liquid generation system further comprises an inflator pump, the inflator pump is arranged on the air inlet path, and the inflator pump can inflate the mixing chamber.

According to the micro-nano bubble liquid generation system provided by some embodiments of the utility model, the micro-nano bubble liquid generation system further comprises a water flow sensor, and the water flow sensor is arranged on the liquid inlet flow path to detect the liquid inlet flow of the liquid inlet flow path.

Optionally, micro-nano bubble liquid generation system still includes the controller, the controller respectively with the rivers sensor the pressure regulating valve subassembly the pump body communication is connected, the controller is used for rivers sensor accumulative discharge is greater than first preset flow or when the accumulative service life of rivers sensor is greater than first preset time, control the pressure regulating valve subassembly is closed or is reduced the aperture, just the controller control the pump body operation, for the hybrid chamber make-up gas.

Optionally, the micro-nano bubble liquid generation system further comprises a liquid level sensor, the liquid level sensor is in communication connection with the controller, the liquid level sensor is used for detecting the liquid level height of liquid in the mixing chamber, and the controller receives signals of the liquid level height.

Optionally, the liquid level sensor is arranged at the lower part of the mixing cavity, and when the controller receives an air inlet signal, the controller is used for controlling the pressure regulating valve assembly to reduce the flow or close and the pump body operates; or the liquid level sensor is arranged above the middle part of the mixing cavity, and the controller is used for controlling the gas dissolving device to enter an air inlet state when the liquid level is higher than a first preset liquid level height threshold value.

Optionally, when the liquid level sensor is disposed at the lower portion of the mixing chamber, the controller is further configured to control the pump body to stop operating and control the pressure regulating valve assembly to increase a flow rate or open to enter a dissolved air state when the liquid level is within a second preset liquid level threshold.

Optionally, micro-nano bubble liquid generation system still includes a water switch, a water switch is established go out the liquid flow on the road, a water switch with the controller communication is connected, a water switch is opened just when rivers sensor detects rivers, the controller control the hybrid chamber is in the state of admitting air.

Optionally, the controller is configured to control the mixing chamber to be in the air intake state again when the water outlet switch is turned off for a time period longer than a second preset time and the water outlet switch is turned on again.

Optionally, when the water outlet switch is turned on to be turned off last time, the accumulated water flow of the water flow sensor is larger than a second preset flow, and the water outlet switch is turned on again, the controller controls the mixing cavity to be in the air inlet state to replenish the gas again.

According to the micro-nano bubble liquid generation system provided by some embodiments of the utility model, 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 gas dissolving device.

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

A water heater according to an embodiment of the present invention includes: the micro-nano bubble liquid generation system; and the heating device is arranged on the converging flow path and positioned between the pump body and the gas dissolving device, or the heating device is arranged on the liquid outlet flow path.

According to the water heater provided by the embodiment of the utility model, the micro-nano bubble liquid generation system is adopted, the heating device is arranged on the converging flow path or the liquid outlet flow path of the micro-nano bubble liquid generation system, the heating device and the micro-nano bubble liquid generation system are matched to quickly form dissolved air liquid with a certain temperature, and when the heating device is arranged on the converging flow path, the heating device is positioned between the pump body and the dissolved air device, so that the pump body is prevented from being impacted by high-temperature hot water, the service life of the pump body is prolonged, and the user experience is improved.

Additional aspects and advantages of the utility model 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 utility model.

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 liquid outlet side of a second liquid inlet flow path is connected to the merged flow path and located on a front side of the pump body.

Fig. 2 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 liquid outlet side of the second liquid inlet flow path is connected to the merged flow path and located at a rear side of the pump body.

Fig. 3 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 liquid outlet side of a second liquid inlet flow path is connected to the liquid outlet flow path.

Fig. 4 is a schematic control flow diagram of a micro-nano bubble liquid generating system according to some embodiments of the first aspect of the present invention.

Fig. 5 is a schematic control flow diagram of a micro-nano bubble liquid generating system according to some embodiments of the second aspect of the present invention. Wherein the pressure regulating valve assembly comprises a normally open valve.

Fig. 6 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 outlet side of a second liquid inlet flow path is connected to the merged flow path and located on a front side of the pump body, and a liquid level sensor is disposed at a lower position of the mixing chamber.

Fig. 7 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 outlet side of a second liquid inlet flow path is connected to the merged flow path and located at a rear side of the pump body, and a liquid level sensor is disposed at a lower position of the mixing chamber.

Fig. 8 is a schematic diagram of a micro-nano bubble liquid generating system according to some embodiments of the third aspect of the present invention, wherein a liquid outlet side of the second liquid inlet flow path is connected to the liquid outlet flow path, and the liquid level sensor is disposed at a lower position of the mixing chamber.

Fig. 9 is a schematic control flow diagram of a micro-nano bubble liquid generating system according to some embodiments of the third aspect of the present invention.

Fig. 10 is a schematic control flow diagram of a micro-nano bubble liquid generating system according to some embodiments of the fourth aspect of the present invention. Wherein, the pressure regulating valve assembly comprises a normally open valve, and the liquid level sensor is arranged at the lower part of the mixing cavity.

Fig. 11 is a cross-sectional view of a flow regulating valve of some embodiments of the present invention increasing the liquid flow rate of an inlet flow path.

Fig. 12 is a cross-sectional view of a flow regulating valve of some embodiments of the present invention reducing the liquid flow of an inlet flow path.

FIG. 13 is a cross-sectional view of an integrally provided pressure regulator valve assembly according to some embodiments of the present invention.

Fig. 14 is a cross-sectional view of the flow rate control valve of fig. 13 when the flow rate of the liquid in the liquid inlet flow path is reduced.

Fig. 15 is a cross-sectional view of the flow rate control valve of fig. 13 when increasing the liquid flow rate of the liquid inlet flow path.

Fig. 16 is a cross-sectional view of the regulator valve of fig. 13 open.

Fig. 17 is a cross-sectional view of the regulator valve of fig. 13 closed.

FIG. 18 is a schematic view of a partial flow path of a water heater according to some embodiments of the utility model. Wherein, the heating device is arranged between the pump body and the gas dissolving device.

FIG. 19 is a schematic view of a partial flow path of a water heater according to further embodiments of the present invention. Wherein, the heating device is arranged on a liquid outlet pipeline behind the gas dissolving device.

Reference numerals:

100. a micro-nano bubble liquid generation system;

1. a gas dissolving device; 13. a liquid outlet; 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; 53. a pump body; 6. a liquid outlet flow path; 61. a water outlet switch;

7. a liquid inlet flow path;

70. a pressure regulating valve assembly;

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;

72. a pressure maintaining valve;

721. a pressure stabilizing housing; 722. a voltage stabilization inlet; 723. a pressure stabilizing outlet; 724. an adjustment assembly; 791. a first tee joint; 792. a second tee joint;

71. a water flow sensor; 75. a first liquid inlet flow path; 76. a second liquid inlet flow path; 761. a liquid inlet check valve;

8. a merged channel; 82. a merging port;

1000. a water heater; 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.

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

As shown in the first aspect example in fig. 1 to 3 and the third aspect example in fig. 6 to 8, the micro-nano bubble liquid generating system 100 according to the embodiment of the present invention includes: the air dissolving device 1, the pressure regulating valve assembly 70 and the pump body 53.

The air dissolving device 1 is internally provided with a mixing cavity 16, an air inlet air path 5, an air inlet flow path 7, a converging flow path 8 and an air outlet flow path 6 are formed on the air dissolving device 1, the air inlet air path 5, the air inlet flow path 7, the converging flow path 8 and the air outlet flow path 6 are communicated with the mixing cavity 16, one end of the converging flow path 8 is communicated with the air inlet air path 5 and the air inlet flow path 7, and the other end of the converging flow path 8 is communicated with the mixing cavity 16.

That is, one end of the converging flow path 8 is simultaneously communicated with the air inlet path 5 and the liquid inlet path 7, the other end of the converging flow path 8 is communicated with the mixing cavity 16, the air inlet path 5 and the liquid inlet path 7 are communicated with the mixing cavity 16 through the converging flow path 8, the liquid inlet path 7 is used for introducing liquid into the mixing cavity 16 through the converging flow path 8, the air inlet path 5 is used for introducing gas into the mixing cavity 16 through the converging flow path 8, and the gas and the liquid are mixed into dissolved gas liquid in the mixing cavity 16 and then are conveyed to a water using end through the liquid outlet path 6.

The pressure regulating valve assembly 70 is provided in the intake flow path 7, and the pressure regulating valve assembly 70 is mainly used to regulate the flow rate of the liquid in the intake flow path 7.

The pump body 53 is arranged on the converging flow path 8, the air dissolving device 1 has an air inlet state and an air dissolving state, in the air inlet state, the pressure regulating valve component 70 reduces the liquid flow of the liquid inlet flow path 7, and the pump body 53 operates to pump the liquid away from the liquid inlet flow path 7, so that the air inlet air path 5 can inlet air to the mixing chamber 16; in the gas-dissolved state, the pressure regulating valve assembly 70 increases the flow rate of the liquid inlet flow path 7, the pump body 53 stops operating, and the gas in the mixing chamber 16 dissolves in the liquid to form a gas-dissolved liquid.

That is, in the air intake state of the air dissolver 1, the pressure regulating valve assembly 70 is used to reduce the liquid flow rate of the intake flow path 7 and the pump body 53 is operated, and in the air dissolving state of the air dissolver 1, the pressure regulating valve assembly 70 is used to increase the flow rate of the intake flow path 7 and the pump body 53 is stopped operating.

As can be seen from the above structure, in the micro-nano bubble liquid generating system 100 according to the embodiment of the present invention, by providing a plurality of flow paths (the air inlet path 5, the liquid outlet path 6, the liquid inlet path 7, and the converging path 8) communicated with the mixing chamber 16, the plurality of flow paths cooperate to guide the flow of liquid or gas, so as to ensure that the liquid and the gas can flow along a predetermined direction, wherein the liquid inlet path 7 and the converging path 8 cooperate to convey the liquid toward the mixing chamber 16; the gas inlet path 5 and the converging flow path 8 cooperate to convey gas towards the mixing chamber 16; the liquid outlet flow path 6 is used for introducing the mixed dissolved gas liquid to the water using end.

By arranging the pump body 53, after the flow of the liquid flowing through the liquid inlet flow path 7 is reduced by the pressure regulating valve assembly 70, the amount of the liquid flowing into the mixing cavity 16 from the liquid inlet flow path 7 is reduced, the liquid in the liquid inlet flow path 7 can be rapidly pumped out by the operation of the pump body 53, so that the pressure in the liquid inlet flow path 7 is reduced, and the purpose of reducing the pressure at the rear end of the pressure regulating valve assembly 70 is achieved, thus, the air in the air inlet path 5 can smoothly flow towards the pump body 53 and enters the mixing cavity 16 through the pump body 53, the purpose of conveying the air towards the mixing cavity 16 is achieved, the air inlet process of the mixing cavity 16 is completed, the air inlet efficiency is improved, and finally, more air is filled into the air dissolving device 1.

That is, the present application adjusts the pressure in the inlet flow path 7 by the cooperation of the pump body 53 and the pressure regulating valve assembly 70, so as to maintain the pressure at the inlet end of the air dissolving device 1 at a preset value, and to change the flow rate of the liquid in the inlet flow path 7 and the air pressure in the mixing chamber 16.

When the pressure regulating valve assembly 70 is used to reduce the liquid flow rate flowing through the liquid inlet flow path 7, the amount of liquid input from the liquid inlet flow path 7 to the mixing chamber 16 is reduced, the pump body 53 operates to pump the liquid out of the liquid inlet flow path 7 to pump the liquid in the liquid inlet flow path 7 to the air dissolving device 1, at this time, the air pressure in the converging flow path 8 and the liquid inlet flow path 7 is lower than the air pressure in the air inlet path 5, so that the gas in the air inlet path 5 enters the mixing chamber 16 through the converging flow path 8, the purpose of rapidly introducing air to the air dissolving device 1 is achieved, the air dissolving device 1 is filled with required gas, and the air inlet process of the mixing chamber 16 is completed.

That is to say, this application is through setting up the pump body 53 to establish the pump body 53 on joining flow path 8, will greatly conveniently admit air to dissolving gas device 1, improve the efficiency of admitting air, realize that the efficient admits air, thereby improve the generation quality and the efficiency of follow-up micro-nano bubble liquid.

Meanwhile, as a certain amount of liquid is always stored in the air dissolving device 1 and the air dissolving device 1 always keeps liquid inlet, the liquid can be always discharged from the liquid outlet flow path 6 to the water using end in the air inlet process of the air dissolving device 1, and the water cut is prevented.

After the gas dissolving device 1 is filled with more gas, the pump body 53 stops operating, the pressure regulating valve assembly 70 is switched to increase the flow rate of the liquid inlet flow path 7, at the moment, the amount of liquid flowing into the mixing cavity 16 is larger than the amount of liquid flowing out, so that more liquid flows into the mixing cavity 16 rapidly to stably increase the pressure in the mixing cavity 16, further, the gas filled into the gas dissolving device 1 is rapidly dissolved in the liquid to form gas dissolving liquid, and reliable guarantee is provided for the subsequent micro-nano bubble water generation.

It can be seen that, in the present application, through the cooperation of the air inlet path 5, the pressure regulating valve assembly 70 and the pump body 53, the air dissolving device 1 can be greatly facilitated to perform air inlet and air dissolving, and it can be ensured that water is always supplied to the user.

It is worth noting that, according to the present application, the pump body 53 is disposed on the converging flow path 8, that is, disposed at the upstream of the air dissolving device 1, so that in the process of pumping the liquid in the liquid inlet flow path 7 during the operation of the pump body 53, only the liquid in the liquid inlet flow path 7 needs to be pumped, and the liquid in the air dissolving device 1 does not need to be pumped, so as to reduce the pumping pressure of the pump body 53 and prolong the service life of the pump body 53. Here, the upstream means that, in the process of feeding the liquid into the gas dissolving device 1, the liquid flows into the gas dissolving device 1 after passing through the pump body 53.

In addition, this application is owing to set up the pressure-regulating valve subassembly 70 of the adjustable liquid flow size of flowing through inlet fluid flow path 7, can switch the size of the liquid flow of flowing through inlet fluid flow path 7 through pressure-regulating valve subassembly 70 at any time at the in-process that micro-nano bubble liquid generation system 100 used to make and dissolve gas device 1 and switch between air intake state and the state of dissolving gas, realize inflating midway, be convenient for produce high-quality micro-nano bubble liquid.

Compared with the prior art, the micro-nano bubble liquid generation system 100 has the advantages that the air inlet efficiency is high, the air inlet and air dissolving processes are simple to control, liquid can not be cut off at the water end, air can be filled midway, the condition of water flow closing does not exist, the user experience is good, the starting speed of the whole machine is increased, and the cost performance of a product is improved; the structure is simple, and the cost is low; the whole body is modularized, the size is small, the arrangement is compact, the device is convenient to use on small equipment, and the occupied size can be changed to meet different use scenes.

It should be noted that the liquid in the present invention may be tap water with certain impurities at a low temperature, or purified water purified by a purification device, or relatively pure water supplied from a domestic water tank, or water doped with certain chemical substances, which should be understood widely, and should not be limited to water described in the chemical field.

Alternatively, the liquid inlet flow path 7, the liquid outlet flow path 6 and the merging flow path 8 may be liquid inlet pipes, and accordingly, the air inlet path 5 may form an air inlet pipe.

Alternatively, as shown in the first aspect example in fig. 1 to 3 and the third aspect example in fig. 6 to 8, the gas dissolving device 1 is formed with a merging port 82 and a liquid outlet 13, one end of the merging flow path 8 is connected to both the liquid inlet flow path 7 and the gas inlet path 5, the other end of the merging flow path 8 is used for communicating the merging port 82, and the merging flow path 8 and the merging port 82 are used for introducing both liquid and gas into the mixing chamber 16; one end of the liquid outlet flow path 6 is connected with the liquid outlet 13, the other end of the liquid outlet flow path 6 is connected with the water using end, and the liquid outlet flow path 6 is used for guiding the dissolved gas liquid in the mixing cavity 16 to the water using end.

Alternatively, as shown in fig. 1 to 3, the liquid outlet 13 is formed at the bottom of the gas dissolving device 1, and the merging port 82 is formed at the top or upper part of the gas dissolving device 1. That is, the merging port 82 may be formed at the top of the gas dissolving device 1, the merging port 82 may be formed at the upper portion of the gas dissolving device 1, and the liquid outlet 13 may be formed at the bottom of the gas dissolving device 1. Therefore, different use scenes can be met according to different user requirements, and the method is flexible and convenient.

Advantageously, as shown in fig. 1-3, the merging port 82 is formed at the top of the air dissolving device 1, which can increase the flow rate of water flow, increase the air bubble content of the air bubble mixed flow, and has a simple structure and convenient assembly; 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.

It should be noted that only one merging port 82 is provided in the present application to communicate with the mixing chamber 16 of the air dissolving device 1. Make no matter the feed liquor or admit air and all flow in to mixing chamber 16 through converging mouth 82, compare and set up solitary inlet and air inlet at the top of dissolving gas device 1 in prior art, this application has saved the mouth that needs to set up on dissolving gas device 1, has promoted the sealing performance of dissolving gas device 1, has simplified the structure of dissolving gas device 1.

Optionally, the merging opening 82 is provided with a jet member for jetting the fluid into the gas dissolving device 1, and/or the merging opening 82 is provided with a plurality of fluid inlets arranged at intervals. That is, the jet member may be arranged at the position of the merging port 82 of the air dissolving device 1 to jet into the mixing chamber 16, a plurality of liquid inlet holes may be arranged at the position of the merging port 82 at intervals, or both the jet member and the plurality of liquid inlet holes may be arranged at the position of the merging port 82. 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 some embodiments of the present invention, as shown in the first aspect example in fig. 1 to 3 and the third aspect example in fig. 6 to 8, the pressure regulating valve assembly 70 includes a flow rate regulating valve 78 and a pressure maintaining valve 72, the pressure maintaining valve 72 and the flow rate regulating valve 78 are arranged in parallel, and the flow rate regulating valve 78 is used for regulating the liquid flow rate of the liquid inlet flow path 7. That is to say, the size that the pressure regulating valve subassembly 70 of this application adjusted the liquid flow of inlet flow path 7 mainly is realized through flow control valve 78, and flow control valve 78 and pump body 53 cooperate for dissolve gas device 1 and can switch between the state of admitting air and dissolve gas state, still can guarantee the continuous water of water end when improving the micro-nano bubble liquid quality of generation.

The pressure stabilizing valve 72 is mainly used for stabilizing water inlet pressure, when the water pressure of tap water is unstable, the pressure stabilizing valve 72 can stabilize the water pressure of tap water to be not more than a preset water pressure value, the water pressure stability of the micro-nano bubble liquid generation system 100 is guaranteed, and the safety and the reliability of the micro-nano bubble liquid generation system 100 are improved. The pressure stabilizing valve 72 can also ensure the pressure at the liquid inlet end of the gas dissolving device 1, so that the gas dissolving device 1 can feed liquid under certain pressure; smooth air intake of the air intake path 5 can also be achieved by selecting the pressure stabilizing valves 72 having different pressures.

In a specific example, if the water outlet pressure of the pressure stabilizing valve 72 is P1 and the air outlet pressure of the air inlet path 5 is P2, and the pressure stabilizing valve controls the pressure P2 to be not less than P1, smooth liquid inlet of the liquid inlet path 7 can be realized, and smooth air inlet of the air inlet path 5 is ensured.

Alternatively, the flow rate regulating valve 78 reduces the flow rate of the liquid flowing through the liquid inlet flow path 7, and the pump body 53 operates so that the air dissolving device 1 is in the air intake state. Thereby achieving the purpose of quickly feeding air towards the air dissolving device 1 and leading the air dissolving device 1 to be filled with required air; accordingly, the flow rate of the liquid inlet flow path 7 is increased by the flow rate adjusting valve 78, the pump body 53 stops operating, and the gas in the mixing chamber 16 is dissolved in the liquid to form a gas-dissolved liquid, so that high-quality micro-nano bubble liquid can be generated subsequently.

It should be noted that, the flow regulating valve 78 and the pressure maintaining valve 72 are arranged in parallel, in a specific example, as shown in the first aspect example in fig. 1 to 3 and the third aspect example in fig. 6 to 8, the water inlet ends of the pressure maintaining valve 72 and the flow regulating valve 78 are converged and connected with a water source through a pipeline, and the water outlet ends of the pressure maintaining valve 72 and the flow regulating valve 78 may be converged and connected with the converging flow path 8 through a pipeline (as shown in fig. 1 and 6), or the water outlet ends of the pressure maintaining valve 72 and the flow regulating valve 78 may be respectively connected with the converging flow path 8 through a pipeline (as shown in fig. 2 and 7), or the water outlet end of the pressure maintaining valve 72 may be connected with the water outlet flow path 6 through a pipeline, and the water outlet end of the flow regulating valve 78 may be connected with the converging flow path 8 through a pipeline (as shown in fig. 3 and 8), so as to ensure that a certain amount of liquid is contained in the air dissolving device 1, the water end is used for continuously supplying water.

Optionally, after the pressure stabilizing valve 72 and the flow regulating valve 78 are arranged in parallel, 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 outlet flow of the inlet flow path 7 is the outlet flow of the flow regulating valve 78.

Optionally, the flow regulating valve 78 may be a flow valve with continuously adjustable opening, the structure of the flow valve with continuously adjustable opening may realize the change of the flow in the passage by the rotation of the valve plate, and the specific rotation realization form of the valve plate is not described herein; the flow switching valve can also realize variable output of multi-gear liquid 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.

As shown in fig. 11 and 12, 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. The flow stabilizing assembly 782 and the driving assembly 783 are arranged in the valve casing 781 and divide the valve casing 781 into a first cavity and a second cavity, the first cavity is communicated with the valve inlet 7811, the second cavity is communicated with the valve outlet 7812, a first water passing channel communicated with the first cavity and the second cavity is formed in the middle of the flow stabilizing assembly 782, and a second water passing channel communicated with the first cavity and the second cavity is formed at one end of the flow stabilizing assembly 782; the driving assembly 783 can control the on-off of the first water passing channel or the second water passing channel, so that the water yield of the valve outlet 7812 can be adjusted.

Alternatively, as shown in fig. 11 and 12, the flow stabilization assembly 782 includes a flow stabilization valve spool 7821 and a flow stabilization valve body 7822, the flow stabilization valve body 7822 being disposed within the valve housing 781, both ends of the flow stabilization valve body 7822 facing 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 flow stabilizing valve core 7821 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 liquid entering from the valve inlet 7811 can only flow out from the first water passing channel to the valve outlet 7812, and at the moment, the flow switching valve is in a low water pressure state and outputs low flow, which is favorable for the gas dissolving device 1 to realize gas inlet; 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 high water pressure state at the moment, the flow switching valve outputs large flow, and the gas dissolving device 1 is facilitated to realize gas dissolving.

Alternatively, as shown in fig. 11 and 12, 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. In the design of construction and dimensions, the outer contour of the barrier 7832 preferably is such as to completely block the second water flow passage, so that when the barrier 7832 is closed upon the second water flow passage, the second water flow passage is completely blocked.

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 can be a separating plate, a diaphragm, a sealing plug, etc., as long as it can block the second water passing channel, and is not limited in this respect.

In some examples, the pressure maintaining valve 72 and the flow regulating valve 78 of the present application may be integrated, and an integrated adjustable flow valve with the pressure maintaining valve 72 and the flow regulating valve 78 integrated therein will be described in detail below.

As shown in fig. 13, 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 selected from the flow rate switching valves described above, and the flow rate of the flow rate switching valve in a low water pressure state is assumed to be L_SmallThe flow rate of the flow rate switching valve in a high water pressure 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 low flow state, 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; when setting upP of meter_{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 driving component 783 opens the 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, and the liquid outlet flow of the integrated adjustable flow valve can form different large-flow water outlets, so that the liquid inlet in the gas dissolving device 1 can be always kept and the gas dissolving device cannot be completely closed.

When the integrated adjustable flow valve is not used, two pipelines can be used for enabling the pressure stabilizing valve 72 and the flow regulating valve 78 to be connected in parallel and arranged in a split mode.

Further, as shown in fig. 13, the pressure regulating valve assembly 70 further includes a first tee 791 and a second tee 792, a water inlet end of the first tee 791 is communicated with the liquid inlet flow path 7, and two water outlet ends of the first tee 791 are respectively communicated with a water inlet side of the pressure stabilizing valve 72 and a water inlet side of the flow regulating valve 78; two water inlet ends of the second tee 792 are respectively communicated with the water outlet side of the flow regulating valve 78 and the water outlet side of the pressure stabilizing valve 72, and the water outlet end of the second tee 792 is communicated with the air dissolving device 1.

That is, the first tee 791 is connected to the pressure maintaining valve 72 and the flow regulating valve 78, and two flow paths in the first tee 791 are respectively communicated with the pressure maintaining valve 72 and the flow regulating valve 78, so that the liquid is respectively shunted to the pressure maintaining valve 72 or the flow regulating valve 78 through the first tee 791.

Similarly, the second tee 792 is also respectively connected with the pressure stabilizing valve 72 and the flow regulating valve 78, and two flow paths of the second tee 792 are respectively communicated with the pressure stabilizing valve 72 and the flow regulating valve 78, so that liquid in the pressure stabilizing valve 72 can flow out through the second tee 792, or liquid in the flow regulating valve 78 can flow out through the second tee 792, and finally the whole integrated adjustable flow valve is compact in structure, small and exquisite and convenient to install, good in liquid outlet pressure regulating effect and adjustable in liquid outlet flow, the air dissolving device 1 is convenient to realize rapid air dissolving after air inlet, and water end water supply can be guaranteed to be not cut off.

In a specific example, the first three-way 791 is in threaded or snap connection with the water inlet side of the pressure maintaining valve 72 and the water inlet side of the flow regulating valve 78, so that the first three-way 791 is connected with the pressure maintaining valve 72.

In other examples, the integral connection of the first tee 791 and the pressure maintaining valve 72 may also be made by welding, and the integral connection of the first tee 791 and the flow regulating valve 78 may also be made by welding. Similarly, the second tee 792 is connected with the pressure maintaining valve 72 by screw threads or by clamping with the water outlet side of the pressure maintaining valve 72 and the water outlet side of the flow regulating valve 78. In other examples, the integral connection of the second tee 792 and the regulator valve 72 may also be achieved by welding, and the integral connection of the second tee 792 and the flow control valve 78 may also be achieved by welding.

Optionally, the two outlet ends of the first tee 791 and the two inlet ends of the second tee 792 correspond to each other and are coaxially disposed so as to reduce resistance to excess flow. In cooperation with the pressure stabilizing valve 72, the water inlet side and the water outlet side of the pressure stabilizing valve are coaxially arranged with the water outlet end of the corresponding first tee 791 and the water inlet end of the corresponding second tee 792, so that the pressure stabilizing valve is convenient to connect and has small water passing resistance; the water inlet side and the water outlet side of the flow regulating valve 78 are also coaxially arranged with the water outlet end of the corresponding first tee 791 and the water inlet end of the corresponding second tee 792, so that the connection is convenient and the water passing resistance is small.

Of course, in some other examples, the second tee 792 may not be provided, the water outlet side of the flow regulating valve 78 is connected to the water outlet side of the pressure stabilizing valve 72 through a connecting pipe, and the water flow guided out by the flow regulating valve 78 and the water flow guided out by the pressure stabilizing valve 72 join together and then flow out through the water outlet end of the connecting pipe.

As shown in FIGS. 14 and 15, in order to provide the flow control valve 78 in an integrated variable flow valve, the flow control valve 78 should be matched in size to the outlet end of the first tee 791 and the inlet end of the second tee 792, and corresponding screw or groove fittings are provided on the inner walls of the inlet and outlet sides of the flow control valve 78.

Alternatively, as shown in fig. 16 and 17, a schematic diagram of a surge damping valve 72 provided in an integrated adjustable flow valve is shown. The pressure stabilizing valve 72 comprises a pressure stabilizing shell 721 and an adjusting component 724 arranged in the pressure stabilizing shell 721, a pressure stabilizing inlet 722 and a pressure stabilizing outlet 723 which are communicated are arranged in the pressure stabilizing shell 721, a pressure stabilizing runner communicated with the pressure stabilizing inlet 722 and the pressure stabilizing outlet 723 is arranged in the pressure stabilizing shell 721, and the adjusting component 724 can conduct or cut off the pressure stabilizing runner when moving, so that the pressure stabilizing valve 72 is in an open state when the adjusting component 724 conducts the pressure stabilizing runner; when the regulating member 724 blocks the pressure-stabilizing flow passage, the pressure-stabilizing valve 72 is in a closed state.

Advantageously, the adjusting assembly 724 may include a solenoid rod assembly and an electromagnetic mating piece, which form a magnetic attraction when the solenoid rod assembly and the electromagnetic mating piece are energized to cut off the voltage stabilizing flow passage; when the electromagnetic valve component and the electromagnetic matching piece are powered off, the voltage stabilizing flow passage is conducted.

In order to keep the electromagnetic valve rod assembly at a specific position, an elastic reset piece is arranged between the electromagnetic valve rod assembly and the electromagnetic matching piece, so that after the electromagnetic valve rod assembly and the electromagnetic matching piece are powered off, the reset force of the elastic reset piece drives the electromagnetic valve rod assembly to move towards one side far away from the electromagnetic matching piece to open the pressure stabilizing flow channel.

Of course, the adjusting assembly 724 is not limited to the solenoid rod assembly and the electromagnetic mating member, and for example, in other examples, the adjusting assembly may be in the form of an electric push rod or an air cylinder driven sealing plug, which is not limited herein.

Alternatively, the telescopic movement direction of the adjusting assembly 724 is perpendicular to a connecting line formed by the pressure stabilizing inlet 722 and the pressure stabilizing outlet 723, so that the pressure stabilizing flow passage can be reliably intercepted when the adjusting assembly 724 changes posture.

In some embodiments of the present invention, the pressure regulating valve assembly 70 includes a pressure maintaining valve 72 and a normally open valve or a normally closed valve for regulating the liquid, the pressure maintaining valve 72 being disposed in parallel with the normally open valve or the normally closed valve. Here, the pressure regulating valve assembly 70 may include a pressure maintaining valve 72 and a normally open valve, or include a pressure maintaining valve 72 and a normally closed valve, when the pressure regulating valve assembly 70 includes a pressure maintaining valve 72 and a normally open valve, the normally open valve is used for regulating the liquid to be on or off, and the pressure maintaining valve 72 is connected in parallel with the normally open valve; when the pressure regulating valve assembly 70 comprises the pressure maintaining valve 72 and a normally closed valve, the normally closed valve is used for regulating the on-off of liquid, and the pressure maintaining valve 72 is connected with the normally closed valve in parallel. That is, the pressure regulating valve assembly 70 can regulate the liquid flow of the liquid inlet flow path 7 by controlling a normally open valve or a normally closed valve, and the normally open valve or the normally closed valve is matched with the pump body 53, so that the air dissolving device 1 is switched between an air inlet state and an air dissolving state, and the quality of the generated micro-nano bubble liquid is improved while the water using end is kept from water interruption.

The pressure stabilizing valve 72 and the pressure regulating valve assembly 70 have the same effect as the pressure stabilizing valve 72 in the flow regulating valve 78 and the pressure stabilizing valve 72 which are arranged in parallel, and the description is omitted here.

Alternatively, when the pressure regulating valve assembly 70 includes the normally open valve and the pressure regulator valve 72, the state of the normally open valve is conductive in a natural condition that the normally open valve is not powered on or does not operate, thereby increasing the flow rate of the liquid inlet flow path 7; when the normally open valve is powered on or actuated, the normally open valve is closed, and the liquid flow rate in the liquid inlet flow path 7 is reduced.

Similarly, when the pressure regulating valve assembly 70 includes the normally closed valve and the pressure maintaining valve 72, the normally closed valve is closed under a natural condition that the normally closed valve is not powered on or does not operate, thereby reducing the liquid flow rate of the liquid inlet flow path 7; when the normally-closed valve is powered on or actuated, the normally-closed valve is opened, and the flow rate of the liquid inlet flow path 7 is increased at the moment.

Optionally, after the normally open valve or the normally closed valve is arranged in parallel with the pressure stabilizing valve 72, when the pressure stabilizing valve 72 operates and the normally open valve or the normally closed valve closes the flow path, the liquid outlet flow of the liquid inlet flow path 7 is the liquid outlet flow of the pressure stabilizing valve 72; when the pressure stabilizing valve 72 is closed and the normally open valve or the normally closed valve opens the flow path, the liquid outlet flow of the liquid inlet flow path 7 is the liquid outlet flow of the normally open valve or the normally closed valve; when the pressure stabilizing valve 72 operates and the normally open valve or the normally closed valve opens the flow path, the liquid outlet flow of the liquid inlet flow path 7 is the sum of the liquid outlet flow of the normally open valve or the normally closed valve and the liquid outlet flow of the pressure stabilizing valve 72, so that different outlet flow adjustments under different liquid inlet pressures are realized.

Alternatively, the normally open valve is closed or the normally closed valve is closed while the surge tank valve 72 is opened, and the pump body 53 operates to put the air dissolving device 1 in the intake state. Thereby achieving the purpose of quickly feeding air towards the air dissolving device 1 and leading the air dissolving device 1 to be filled with required air; accordingly, when the normally open valve is opened or the normally closed valve is opened and the pump body 53 stops operating, the gas in the mixing chamber 16 is dissolved in the liquid to form gas-dissolved liquid, so as to subsequently generate high-quality micro-nano bubble liquid.

Alternatively, as shown in fig. 1, fig. 2, fig. 3, fig. 6, fig. 7, and fig. 8, the liquid inlet flow path 7 includes a second liquid inlet flow path 76 and a first liquid inlet flow path 75 connected at liquid inlet sides, a liquid outlet end of the first liquid inlet flow path 75 communicates with the gas outlet end of the gas inlet path 5 to form the merging flow path 8, and the first liquid inlet flow path 75 is provided with a flow rate regulating valve 78, a normally open valve, or a normally closed valve.

The flow rate adjusting valve 78, the normally open valve, or the normally closed valve is used to adjust the outlet flow rate of the first intake flow path 75, thereby adjusting the liquid flow rate of the intake flow path 7.

Alternatively, the liquid inlet end of the first liquid inlet flow path 75 is connected with a water source, and the liquid inlet end of the first liquid inlet flow path 75 is used for conveying the liquid in the water source into the converging flow path 8 and conveying the liquid into the mixing cavity 16 through the converging flow path 8.

Alternatively, as shown in fig. 1, 2, 6, and 7, a pressure stabilizing valve 72 is provided in the second liquid inlet flow path 76, and the liquid outlet side of the second liquid inlet flow path 76 is connected to the merging flow path 8. By providing the second liquid inlet flow path 76, when the first liquid inlet flow path 75 is provided with a normally open valve or a normally closed valve and the first liquid inlet flow path 75 is closed by the normally open valve or the normally closed valve, part of the liquid can further flow into the water using end through the second liquid inlet flow path 76, thereby preventing water cut-off.

Alternatively, as shown in fig. 1 and 4, when the liquid outlet side of the second liquid inlet flow path 76 is connected to the merged flow path 8, the liquid outlet side is positioned on the front side of the pump body 53. At this time, the liquid outlet end of the second liquid inlet flow path 76 and the liquid outlet end of the first liquid inlet flow path 75 are converged and then connected to the converging flow path 8, so that after the water pressure is regulated by the pressure stabilizing valve 72, the pressure and the water flow are regulated and controlled at the liquid inlet end connected with the gas dissolving device 1, and a certain amount of liquid is ensured to be contained in the gas dissolving device 1, and the water using end is kept from stopping water.

Alternatively, as shown in fig. 2 and 7, when the liquid outlet side of the second liquid inlet flow path 76 is connected to the merged flow path 8, the liquid outlet side is located on the rear side of the pump body 53. The liquid outlet side is located at the rear side of the pump body 53, and it is specifically understood that the liquid outlet side is located at the downstream of the pump body 53, and the liquid in the second liquid inlet flow path 76 directly flows into the downstream of the pump body 53 in the flowing process and does not flow through the pump body 53, so that when the pump body 53 operates to pump the liquid away from the liquid inlet flow path 7, only the liquid in the first liquid inlet flow path 75 needs to be pumped, and the liquid in the second liquid inlet flow path 76 does not need to be pumped, thereby reducing the pumping pressure of the pump body 53 and prolonging the service life of the pump body 53.

Alternatively, as shown in fig. 3 and 8, the liquid outlet side of the second liquid inlet flow path 76 is connected to the liquid outlet flow path 6. After the pressure stabilizing valve 72 is opened, part of liquid can also enter the liquid outlet flow path 6 through the second liquid inlet flow path 76, and the pressure stabilizing valve 72 can further mix the dissolved air liquid in the mixing cavity 16 with the water in the second liquid inlet flow path 76 while adjusting the water pressure in the liquid inlet flow path 7, so that the dissolved air liquid and the water flow out towards the water using end together, the pressure of the whole micro-nano bubble liquid generating system 100 is stable, and the liquid outlet flow path 6 can keep a certain amount of water outlet, thereby preventing the system from water cut-off.

Optionally, as shown in fig. 2, fig. 3, fig. 7 and fig. 8, a liquid inlet check valve 761 may be further disposed on the second liquid inlet flow path 76, so as to realize the flow of the liquid from the pressure stabilizing valve 72 to the liquid outlet end, and the opposite direction does not occur, thereby ensuring the pressure stability of the system.

In some embodiments of the present invention, as shown in the first aspect example in fig. 1 to 3 and the third aspect example in fig. 6 to 8, the micro-nano bubble liquid generating system 100 further includes a one-way valve 51, the one-way valve 51 is disposed on the air intake path 5, and the one-way valve 51 can make the air flow from the air intake path 5 to the mixing chamber 16 in one direction. 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 charge air to the mixing chamber 16 from a single direction, and the opposite process is avoided, 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 and even being incapable of charging air.

Optionally, as shown in fig. 6, 7 and 8, the micro-nano bubble liquid generating system 100 further includes an inflator 52, the inflator 52 is disposed on the air intake path 5, and the inflator 52 is configured to inflate the mixing chamber 16. The inflator 52 is used for pumping air into the air dissolving device 1, and the air pressure pumped by the inflator 52 is greater than or equal to the pressure in the air dissolving device 1, so that the inflator 52 actively pumps the air into the mixing cavity 16, the air intake of the mixing cavity 16 is realized, and the air intake efficiency of the mixing cavity 16 is improved.

Therefore, the inflator 52 and the pump body 53 are used together to control the gas to flow towards the mixing cavity 16, so that the gas inlet of the mixing cavity 16 is realized, and the gas inlet efficiency of the mixing cavity 16 is further improved.

In a specific example, the pump body 53 can pump liquid to reduce the pressure in the first liquid inlet flow path 75 or reduce the pressure in the air inlet 11, and then the inflator 52 is actively operated to raise the pressure in the air inlet path 5, so that the pressure difference between the air pressure pumped by the inflator 52 and the pressure in the air dissolving device 1 is larger, the air inlet of the mixing cavity 16 is controlled more quickly, and efficient air inlet of the mixing cavity 16 is easier to realize.

Of course, in some other examples, the inflator 52 may not be provided, the pump body 53 alone may also implement air intake control and efficient air intake of the mixing chamber 16, and when the inflator 52 is not provided, the production cost of the micro-nano bubble liquid generating system 100 may also be reduced, and the control of the micro-nano bubble liquid generating system 100 may also be simple.

Alternatively, the air pressure pumped by inflator 52 is in the range of 0.1MPa to 1.2 MPa; and/or the water inlet pressure of the liquid inlet 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 of the controller 3 is 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 water inlet pressure of the liquid inlet 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 the first aspect example in fig. 1 to 3 and the third aspect example in fig. 6 to 8, the micro-nano bubble liquid generating system 100 further includes a water flow sensor 71, the water flow sensor 71 is disposed on the liquid inlet flow path 7, and the water flow sensor 71 is configured to detect a liquid inlet flow rate of the liquid inlet flow path 7. Thereby, it is possible to detect in real time whether or not liquid flows into the liquid inlet flow path 7 and to detect the flow rate of the liquid flowing therethrough.

Optionally, the micro-nano bubble liquid generating system 100 further includes a controller 3, and the controller 3 is respectively connected to the water flow sensor 71, the pressure regulating valve assembly 70, and the pump body 53 in communication. That is to say, the controller 3 can accurately control the water inflow and the water inflow pressure in the mixing chamber 16 or the micro-nano bubble generator 41 by controlling the water flow sensor 71 on the first aspect, so as to save resources and ensure that sufficient liquid enters the mixing chamber 16 for dissolving air; the controller 3 can control the liquid flow rate of the liquid inlet flow path 7 by controlling the pressure regulating valve assembly 70; the controller 3 may control the opening and closing of the pump 53 to control the pumping of the liquid and the intake of the air into the mixing chamber 16 when the pump 53 is open, and control the closing of the pump 53 to achieve the air dissolution in the mixing chamber 16. Through the effect of controller 3, can simplify the operating procedure of micro-nano bubble liquid generation system 100, reduce the operation degree of difficulty, convenient to use, intelligent degree height.

Optionally, the controller 3 is configured to control the pressure regulating valve assembly 70 to close or decrease the opening degree when the accumulated water flow rate of the water flow sensor 71 is greater than the first preset flow rate L1 or the accumulated service time of the water flow sensor 71 is greater than the first preset time T4, and the controller 3 controls the pump body 53 to operate to replenish the gas to the mixing chamber 16. Thereby increasing the gas content in the dissolved gas liquid.

It should be noted that, when the accumulated water flow rate of the water flow sensor 71 is greater than the first preset flow rate L1 or the accumulated service time of the water flow sensor 71 is greater than the first preset time T4, and the flow rate of the liquid inlet flow path 7 is greater, it is described that a large amount of liquid has been introduced into the mixing chamber 16, and when the amount of liquid is too large and the amount of gas is small, the quality of the generated micro-nano bubble liquid will be reduced, therefore, the present application will control the pressure regulating valve assembly 70 to close or reduce the opening degree and control the pump body 53 to pump the liquid, so as to switch the gas dissolving device 1 to the liquid discharging and gas inlet state, and replenish the gas to the mixing chamber 16 in time, so as to increase the content of the gas in the gas dissolving liquid, thereby increasing the quality of the micro-nano bubble liquid.

Optionally, as shown in fig. 6, 7 and 8, the micro-nano bubble liquid generating system 100 further includes a liquid level sensor 161, and the controller 3 is in communication connection with the liquid level sensor 161. The controller 3 is used to control the liquid level sensor 161.

The level sensor 161 is used to detect the level of the liquid in the mixing chamber 16, and the controller 3 receives the signal of the level. Thereby can judge the liquid level in the hybrid chamber 16 accurately to further judge the pressure in the hybrid chamber 16 according to the liquid level, be favorable to flowing back in the hybrid chamber 16 admit air, dissolve the gas process and carry out more accurate judgement and control, thereby further guarantee from the quality of the gas solution that flows out in the play liquid flow path 6, provide reliable guarantee for the follow-up microbubble water that forms, and guarantee the gas density that the microbubble water contains.

Alternatively, the liquid level sensor 161 may be a float, an infrared sensor, or the like.

Optionally, a liquid level sensor 161 is provided above the middle of the mixing chamber 16, and the controller 3 is configured to control the gas dissolving device 1 to enter the gas inlet state when the liquid level is higher than a first preset liquid level height threshold value. That is, the liquid level sensor 161 may also be disposed at a middle or upper portion of the mixing chamber 16, when the liquid level sensor 161 detects that the liquid level is higher than a first preset liquid level threshold, which indicates that there is a portion of liquid in the mixing chamber 16, at this time, the gas dissolving device 1 is controlled to enter a gas intake state, and the gas intake causes the portion of liquid in the mixing chamber 16 to be discharged to the liquid outlet flow path 6, so that the mixing chamber 16 is refilled with the required gas.

In a specific example, the liquid level sensor 161 is disposed above the middle of the mixing chamber 16, and the air dissolving device 1 may be controlled to enter the air intake state when the liquid level is higher than the upper limit value of the first preset liquid level height threshold; the liquid level height is reduced by the gas entering, and when the liquid level height is lower than the lower limit value of the first preset liquid level height threshold value, the gas dissolving device 1 is controlled to enter a gas dissolving state.

In other examples, the level sensor 161 is located at a lower portion of the mixing chamber 16, and the controller 3 is configured to control the pressure regulator valve assembly 70 to reduce flow or close and the pump body 53 to operate when the controller 3 receives an intake signal. At this time, the liquid flow rate of the liquid inlet flow path 7 is reduced, so that the liquid amount conveyed by the liquid inlet flow path 7 into the mixing chamber 16 is reduced, and the controller 3 also controls the pump body 53 to pump liquid, so that the air pressure in the merging flow path 8 and the liquid inlet flow path 7 is lower than the air pressure in the air inlet path 5, thereby ensuring that the air in the air inlet path 5 can enter the mixing chamber 16 through the merging flow path 8, and supplementing the air amount in the mixing chamber 16.

Optionally, when the liquid level sensor 161 is disposed at the lower portion of the mixing chamber 16, the controller 3 is further configured to control the pump body 53 to stop operating and the pressure regulating valve assembly 70 to increase the flow rate or open to enter the dissolved air state when the liquid level is within a second predetermined liquid level threshold. Because the dissolved gas liquid is continuously discharged outwards from the earlier-stage liquid outlet flow path 6, the liquid level in the mixing cavity 16 is continuously reduced, the space for accommodating the gas volume in the mixing cavity 16 is increased, the pressure in the mixing cavity 16 is reduced, and the gas in the gas inlet gas path 5 is continuously filled into the mixing cavity 16, and the pump body 53 is controlled to stop running, so that the amount of the gas finally filled into the mixing cavity 16 can be controlled, the gas filled into the mixing cavity 16 is ensured to be enough, and the liquid level height is within the second preset liquid level height threshold value, which indicates that a certain amount of liquid still exists in the mixing cavity 16, and the water cut-off of the water end is effectively prevented.

Meanwhile, when the control pump body 53 stops operating, the pressure regulating valve assembly 70 is controlled to increase the flow rate or open to enter the dissolved air state. At this time, more liquid can rapidly flow into the mixing cavity 16 through the liquid inlet flow path 7, so that the pressure in the mixing cavity 16 is stably increased, and further, the gas filled into the gas dissolving device 1 is rapidly dissolved in the liquid to form gas dissolving liquid, thereby providing reliable guarantee for the subsequent further generation of micro-nano bubble water.

The preset liquid level height in the utility model can be selected and flexibly set according to the actual situation.

Optionally, as shown in the first aspect example in fig. 1 to fig. 3 and the third aspect example in fig. 6 to fig. 8, the micro-nano bubble liquid generating system 100 further includes a water outlet switch 61, the water outlet flow path 6 is provided with the water outlet switch 61, the controller 3 is connected to the water outlet switch 61 in a communication manner, and when the water outlet switch 61 is turned on and the water flow sensor 71 detects water flow, the controller 3 controls the mixing chamber 16 to be in an 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 pump body 53 or the inflator 52 to operate, and the air inlet path 5 is promoted to inlet air into the mixing chamber 16.

Optionally, the controller 3 is configured to control the mixing chamber 16 to be in the air intake state again when the water outlet switch 61 is turned off for a period of time longer than a second preset time T5 and the water outlet switch 61 is turned on again.

I.e., the water flow sensor 71 does not detect the water flow (no water flow signal) for a time period greater than T5, the controller 3 controls the mixing chamber 16 to be in the air-intake state again, so that a certain amount of air-dissolved liquid is always maintained in the mixing chamber 16.

Alternatively, when the water outlet switch 61 is turned on to off last time, the accumulated water flow of the water flow sensor 71 is greater than the second preset flow, and the water outlet switch 61 is turned on again, at this time, a large amount of liquid already exists in the mixing chamber 16, and therefore, the controller 3 controls the mixing chamber 16 to be in the air inlet state again, so as to supplement the air in the mixing chamber 16.

In some embodiments of the present invention, as shown in the first aspect example in fig. 1 to fig. 3 and the third aspect example in fig. 6 to fig. 8, 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, the micro-nano bubble water micro-channel may be one or more, and the dissolved air in the bubble water micro-channel may be discharged through the micro-nano bubble water micro-channel, so as to generate micro-nano bubble water having high micro-nano bubble density.

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.

Optionally, 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. The dissipation of the micro-nano bubbles in the liquid outlet flow path 6 is reduced, and the quality of the micro-nano bubble water is further improved. 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 device 2, and the power supply device 2 is connected to the controller 3 to supply the controller 3 with required power, so that the controller 3 can operate normally.

The water heater 1000 according to the embodiment of the utility model is described below with reference to the drawings of the specification, and the water heater 1000 can 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, as shown in fig. 18 and 19, includes: a heating device 400 and a micro-nano bubble liquid generating system 100.

The micro-nano bubble liquid generation system 100 is the micro-nano bubble liquid generation system 100, and the specific structure of the micro-nano bubble liquid generation system 100 is not described herein.

As shown in fig. 18, the heating device 400 is provided on the merging flow path 8 between the pump body 53 and the air dissolving device 1, or, as shown in fig. 19, the heating device 400 is provided on the liquid outlet flow path 6. The dissolved air liquid that forms behind micro-nano bubble liquid generation system 100 or the liquid that the feed liquor flow path 7 was derived heat through heating device 400 again, prevent that the liquid of high temperature from causing the impact to the pump body 53, when the life of extension pump body 53, still be convenient for carry hot water towards the play water end, promote user experience.

As can be seen from the above structure, according to the water heater 1000 of the embodiment of the present invention, by using the micro-nano bubble liquid generating system 100, the dissolved gas liquid can be quickly formed in the water heater 1000, and the dissolved gas liquid or the liquid guided out from the liquid inlet flow path 7 is conveyed to the heating device 400, the heating device 400 is used for heating the dissolved gas liquid or the liquid, and then the dissolved gas liquid with a certain temperature is conveyed to the water using end of the water heater 1000, so that the user can use the water with a required property in time. The internal pressure of the water heater 1000 is adjusted stably, the operation is stable, the user experience is good, and the product safety is high. The user can install micro-nano bubble liquid generation system 100 to required position as required, promotes the flexibility and the convenience of product installation to the practicality of water heater 1000 has been increased.

Alternatively, as shown in fig. 18, the heating device 400 is disposed on the converging flow path 8 and located between the pump body 53 and the air dissolving device 1, so that the liquid guided out through the pump body 53 is first heated by the heating device 400, and the heated liquid is then conveyed into the mixing chamber 16 through the converging flow path 8, so that the air dissolving liquid mixed in the mixing chamber 16 has certain stability, and the user experience is improved.

It should be noted that, by disposing the heating device 400 between the pump body 53 and the air dissolving device 1, during the flowing process of the liquid, the liquid will first pass through the pump body 53 and then flow into the heating device 400 for heating, that is, during the flowing process of the liquid through the pump body 53, the liquid is formed into normal temperature liquid, so as to effectively avoid the impact of the high temperature liquid on the pump body 53, and prolong the service life of the pump body 53.

As shown in fig. 18, when the heating device 400 is provided between the pump body 53 and the gas dissolving device 1 and the liquid outlet side of the second liquid inlet flow path 76 is connected to the rear side of the pump body 53, the liquid outlet side of the second liquid inlet flow path 76 can be connected between the pump body 53 and the heating device 400, so that when the liquid is supplied to the gas dissolving device 1 through the second liquid inlet flow path 76, the liquid supplied through the second liquid inlet flow path 76 can be supplied into the gas dissolving device 1 after passing through the heating device 400.

Of course, in other examples, the liquid outlet side of the second liquid inlet flow path 76 may also be connected between the heating device 400 and the air dissolving device 1, and the second liquid inlet flow path 76 is used for conveying normal temperature water towards the air dissolving device 1.

In other examples, as shown in fig. 19, the heating device 400 may be provided on the liquid outlet flow path 6. At this time, the gas-dissolved liquid with a low temperature is formed in the gas dissolving device 1, and then the gas-dissolved liquid is sent to the heating device 400 to be heated, so that the gas-dissolved liquid with a high temperature is formed, and is output to the water outlet member 4.

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

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.

Optionally, the water heater 1000 comprises: a cold water inlet channel, a hot water outlet channel, a heating device 400 and the micro-nano bubble liquid generation system 100. Wherein, the liquid outlet flow path 7 of the air dissolving device 1 is connected to the cold water inlet flow path and is positioned at the water inlet end of the heating device 400. The water outlet end of the heating device 400 is connected with a hot water outlet flow passage, the other end of the hot water outlet flow passage is connected with the air dissolving device 1 or the water outlet flow passage 6, the water outlet flow passage 6 is connected with the water outlet piece 4, and a water outlet switch 61 is arranged on one side of the water outlet flow passage 6 close to the water outlet piece 4. When the liquid outlet flow path 6 is connected between the other ends of the hot water outlet flow paths, the dissolved gas liquid with lower temperature is formed in the gas dissolving device 1, and then the dissolved gas liquid is sent into the heating device 400 to be heated, so that the dissolved gas liquid with higher temperature is formed and is output to the water outlet member 4. Therefore, the pump body 53 of the present invention is not impacted by hot water, and the service life of the pump body 53 is prolonged.

It should be noted that the micro-nano bubble liquid generating system 100 of the present invention can be used not only in the water heater 1000, but also in other household appliances, such as a beauty instrument or a dishwasher, so as to make the micro-nano bubble liquid generating system 100 of the present invention have a wider application range.

The following describes a specific structure and a control method of the micro-nano bubble liquid generation system 100 according to an embodiment of the present invention with reference to the drawings. The embodiments of the present invention may be all embodiments obtained by combining the foregoing technical solutions, and are not limited to the following specific embodiments, which fall within the scope of the present invention.

Example 1

A micro-nano bubble liquid generating system 100, as shown in fig. 1 and 6, comprising: the air dissolving device 1, the water flow sensor 71, the pressure regulating valve assembly 70, the power supply device 2, the controller 3, the pump body 53, the water outlet switch 61, the water outlet part 4 and the micro-nano bubble generator 41.

As shown in fig. 1 and 6, a mixing chamber 16 is provided in the air dissolving device 1, an air inlet path 5, an air inlet flow path 7, a converging flow path 8 and an air outlet flow path 6 are formed on the air dissolving device 1, and the air inlet path 5, the air inlet flow path 7, the converging flow path 8 and the air outlet flow path 6 are communicated with the mixing chamber 16.

One end of the merging flow path 8 communicates with the intake flow path 7 and the intake air path 5, the other end of the merging flow path 8 communicates with the mixing chamber 16, the water flow sensor 71 is provided on the intake flow path 7, and the water flow sensor 71 is provided on the intake side of the pressure regulating valve assembly 70. The pressure regulating valve assembly 70 is provided in the liquid inlet flow path 7, and the pressure regulating valve assembly 70 regulates the flow rate of the liquid in the liquid inlet flow path 7. The power supply device 2 supplies power to the controller 3. The water outlet switch 61 is arranged on the water outlet flow path 6 near the water outlet member 4, and the micro-nano bubble generator 41 is arranged in the water outlet member 4.

As shown in fig. 1 and 6, the pump body 53 is disposed on the converging flow path 8, the liquid inlet flow path 7 includes a first liquid inlet flow path 75 and a second liquid inlet flow path 76 connected at liquid inlet sides, a liquid outlet end of the first liquid inlet flow path 75 is communicated with a gas outlet end of the gas inlet path 5 to form the converging flow path 8, a liquid outlet end of the second liquid inlet flow path 76 is connected with the converging flow path 8 and is located at a front side of the pump body 53, and the gas inlet path 5 is provided with the check valve 51.

As shown in fig. 1 and 6, the pressure regulating valve assembly 70 includes a pressure maintaining valve 72 and a flow rate regulating valve 78 arranged in parallel. The pressure maintaining valve 72 is provided in the second intake flow path 76, the flow rate adjusting valve 78 is provided in the first intake flow path 75, and the flow rate adjusting valve 78 is used to adjust the flow rate of the liquid in the intake flow path 7. The controller 3 is in communication with the water flow sensor 71, the inflator 52, the pressure maintaining valve 72 and the flow regulating valve 78, respectively.

As shown in fig. 4, when the micro-nano bubble liquid generating system 100 is used, after a user opens the water outlet switch 61, water flow sends a water flow signal to the controller 3 through the water flow sensor 71, the controller 3 supplies power or signals to the flow regulating valve 78 and the pressure stabilizing valve 72, so that the flow regulating valve 78 outputs a small flow, and the pressure stabilizing valve 72 performs opening and closing control according to actual system pressure. The controller 3 controls the pump body 53 to operate, the pump body 53 pumps the liquid in the liquid inlet flow path 7 into the gas dissolving device 1, the air pressure in the converging flow path 8 and the liquid inlet flow path 7 is lower than the air pressure in the gas inlet path 5, so that the gas in the gas inlet path 5 enters the mixing cavity 16 through the converging flow path 8, and the gas inlet of the mixing cavity 16 is completed. When sufficient gas is filled in the mixing cavity 16, the flow regulating valve 78 is controlled to output large flow, and the pressure stabilizing valve 72 is controlled to open and close according to the actual system pressure, so that the pressure in the mixing cavity 16 is increased, and air is dissolved in liquid to generate gas-dissolved liquid. When the dissolved air liquid flows out of the water outlet piece 4, the dissolved air liquid passes through the micro-nano bubble generator 41 in the water outlet piece 4, so that micro-nano bubble water is generated for a user to use. When the using condition of reusing the micro-nano bubble liquid generating system 100 is satisfied, the circulation control can be performed again according to the above process.

When the water flow sensor 71 detects that the water flow is larger than the first preset flow L1 or the accumulated service time of the water flow sensor 71 is larger than the first preset time T4, the flow regulating valve 78 and the pump body 53 are controlled again to operate, so that the liquid and the air are discharged and supplied to the mixing chamber 16 during the operation, and the gas in the mixing chamber 16 is supplemented.

When the controller 3 does not detect that the water flow rate is greater than T5 in the water flow sensor 71 for a continuous time, or the controller 3 determines that the accumulated water flow rate of the water flow sensor 71 is greater than the second preset flow rate L2 in the last operation process, the controller 3 turns on the water outlet switch 61 again, and controls the mixing cavity 16 to be in the air inlet state again, so that a certain amount of air-dissolved liquid is always kept in the mixing cavity 16.

Example 2

A micro-nano bubble liquid generating system 100, which has the same structure as that of embodiment 1, wherein the same components are denoted by the same reference numerals, and the differences are only that: as shown in fig. 2 and 7, the liquid outlet end of the second liquid inlet flow path 76 is connected to the merged flow path 8 and is located on the rear side of the pump body 53. The micro-nano bubble liquid generating system 100 can be used in the manner described in example 1.

Example 3

A micro-nano bubble liquid generating system 100, having substantially the same structure as that of embodiment 1, wherein the same components are denoted by the same reference numerals, and the difference is that: as shown in fig. 3 and 8, the liquid outlet end of the second liquid inlet flow path 76 is connected to the liquid outlet flow path 6. The micro-nano bubble liquid generating system 100 can be used in the manner described in example 1.

Example 4

A micro-nano bubble liquid generating system 100, having substantially the same structure as that of embodiment 1, wherein the same components are denoted by the same reference numerals, and the difference is that: the pressure regulating valve assembly 70 includes a pressure maintaining valve 72 and a normally open valve arranged in parallel.

As shown in fig. 5, when the micro-nano bubble liquid generating system 100 is used, after a user opens the water outlet switch 61, water flow signals are sent to the controller 3 through the water flow sensor 71, the controller 3 supplies power or signals to the normally open valve and the pressure stabilizing valve 72, so that the normally open valve is output and closed, and the pressure stabilizing valve 72 is controlled to be opened and closed according to actual system pressure. The controller 3 controls the pump body 53 to operate, the pump body 53 pumps the liquid in the liquid inlet flow path 7 into the gas dissolving device 1, the air pressure in the converging flow path 8 and the liquid inlet flow path 7 is lower than the air pressure in the gas inlet path 5, so that the gas in the gas inlet path 5 enters the mixing cavity 16 through the converging flow path 8, and the gas inlet of the mixing cavity 16 is completed.

When sufficient gas is filled in the mixing cavity 16, the pump body 53 is controlled to stop running, the normally open valve is opened, and the pressure stabilizing valve 72 is controlled to open and close according to the actual system pressure, so that the pressure in the mixing cavity 16 is increased, and air is dissolved in liquid to generate gas-dissolved liquid. When the dissolved air liquid flows out of the water outlet piece 4, the dissolved air liquid passes through the micro-nano bubble generator 41 in the water outlet piece 4, so that micro-nano bubble water is generated for a user to use. When the using condition of reusing the micro-nano bubble liquid generating system 100 is satisfied, the circulation control can be performed again according to the above process.

When the water flow sensor 71 detects that the water flow is larger than the first preset flow L1 or the accumulated service time of the water flow sensor 71 is larger than the first preset time T4, the normally open valve and the pump body 53 are controlled again to operate, so that the liquid and the air are discharged and supplied to the mixing chamber 16 during the operation, and the gas in the mixing chamber 16 is supplemented.

Example 5

A micro-nano bubble liquid generating system 100, having substantially the same structure as that of embodiment 1, wherein the same components are denoted by the same reference numerals, and the difference is that: as shown in fig. 6, 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 used for detecting the liquid level of the liquid in the mixing chamber 16, and the liquid level sensor 161 is disposed at the lower portion of the mixing chamber 16.

As shown in fig. 9, when the micro-nano bubble liquid generating system 100 is used, after a user opens the water outlet switch 61, water flow sends a water flow signal to the controller 3 through the water flow sensor 71, the controller 3 supplies power or signals to the flow regulating valve 78 and the pressure stabilizing valve 72, so that the flow regulating valve 78 outputs a small flow, and the pressure stabilizing valve 72 performs opening and closing control according to actual system pressure. The controller 3 controls the pump body 53 to operate, the pump body 53 pumps the liquid in the liquid inlet flow path 7 into the gas dissolving device 1, the air pressure in the converging flow path 8 and the liquid inlet flow path 7 is lower than the air pressure in the gas inlet path 5, so that the gas in the gas inlet path 5 enters the mixing cavity 16 through the converging flow path 8, and the gas inlet of the mixing cavity 16 is completed.

When the liquid level sensor 161 detects that the liquid level in the mixing chamber 16 is within the second preset liquid level threshold, sufficient gas is filled in the mixing chamber 16, the pump body 53 is controlled to stop running, the flow regulating valve 78 is controlled to output large flow, and the pressure stabilizing valve 72 is controlled to open and close according to the actual system pressure, so that the pressure in the mixing chamber 16 is increased, and air is dissolved in the liquid to generate gas-dissolved liquid. When the dissolved air liquid flows out of the water outlet piece 4, the dissolved air liquid passes through the micro-nano bubble generator 41 in the water outlet piece 4, so that micro-nano bubble water is generated for a user to use. When the using condition of reusing the micro-nano bubble liquid generating system 100 is satisfied, the circulation control can be performed again according to the above process.

Example 6

A micro-nano bubble liquid generating system 100, having substantially the same structure as that of embodiment 5, wherein the same components are denoted by the same reference numerals, and the difference is that: the liquid level sensor 161 is provided at a position above the mixing chamber 16.

As shown in fig. 9, when the micro-nano bubble liquid generating system 100 is used, after a user opens the water outlet switch 61, water flow signals are sent to the controller 3 through the water flow sensor 71, when the liquid level is higher than the upper limit value of the first preset liquid level height threshold, the controller 3 controls the flow regulating valve 78 to output small flow, and the pressure stabilizing valve 72 performs opening and closing control according to actual system pressure. The controller 3 controls the pump body 53 to operate, the pump body 53 pumps the liquid in the liquid inlet flow path 7 into the gas dissolving device 1, the air pressure in the converging flow path 8 and the liquid inlet flow path 7 is lower than the air pressure in the gas inlet path 5, so that the gas in the gas inlet path 5 enters the mixing cavity 16 through the converging flow path 8, and the gas inlet of the mixing cavity 16 is completed.

When the liquid level sensor 161 detects that the liquid level in the mixing chamber 16 is at the lower limit of the first preset liquid level height threshold, sufficient gas is filled in the mixing chamber 16, the pump body 53 is controlled to stop running, the flow regulating valve 78 is controlled to output large flow, and the pressure stabilizing valve 72 is controlled to open and close according to the actual system pressure, so that the pressure in the mixing chamber 16 is increased, and air is dissolved in the liquid to generate gas-dissolved liquid. When the dissolved air liquid flows out of the water outlet piece 4, the dissolved air liquid passes through the micro-nano bubble generator 41 in the water outlet piece 4, so that micro-nano bubble water is generated for a user to use. When the using condition of reusing the micro-nano bubble liquid generating system 100 is satisfied, the circulation control can be performed again according to the above process.

Example 7

A micro-nano bubble liquid generating system 100, having substantially the same structure as that of embodiment 5, wherein the same components are denoted by the same reference numerals, and the difference is that: the pressure regulating valve assembly 70 includes a pressure maintaining valve 72 and a normally open valve arranged in parallel.

As shown in fig. 10, when the micro-nano bubble liquid generating system 100 is used, after a user opens the water outlet switch 61, water flow signals are sent to the controller 3 through the water flow sensor 71, the controller 3 supplies power or signals to the normally open valve and the pressure stabilizing valve 72, so that the normally open valve is output and closed, and the pressure stabilizing valve 72 is controlled to be opened and closed according to actual system pressure. The controller 3 controls the pump body 53 to operate, the pump body 53 pumps the liquid in the liquid inlet flow path 7 into the gas dissolving device 1, the air pressure in the converging flow path 8 and the liquid inlet flow path 7 is lower than the air pressure in the gas inlet path 5, so that the gas in the gas inlet path 5 enters the mixing cavity 16 through the converging flow path 8, and the gas inlet of the mixing cavity 16 is completed.

When the liquid level sensor 161 detects that the liquid level in the mixing chamber 16 is at the lower limit of the first preset liquid level height threshold, sufficient gas is filled in the mixing chamber 16, the pump body 53 is controlled to stop running, the normally open valve is opened, and the pressure stabilizing valve 72 is controlled to open and close according to the actual system pressure, so that the pressure in the mixing chamber 16 is increased, and air is dissolved in the liquid to generate the gas-dissolved liquid. When the dissolved air liquid flows out of the water outlet piece 4, the dissolved air liquid passes through the micro-nano bubble generator 41 in the water outlet piece 4, so that micro-nano bubble water is generated for a user to use. When the using condition of reusing the micro-nano bubble liquid generating system 100 is satisfied, the circulation control can be performed again according to the above process.

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 generation system 100 and the water heater 1000 according to the embodiment of the present invention, and the communication manner between the controller 3, the water flow sensor 71, the pump body 53, and other components 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 utility model. 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 utility model 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 utility model, 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, an air inlet gas path, a liquid inlet flow path, a converging flow path and a liquid outlet flow path which are communicated with the mixing cavity are formed on the air dissolving device, the air inlet gas path and one end of the liquid inlet flow path are communicated with the converging flow path, and the other end of the converging flow path is communicated with the mixing cavity;

the pressure regulating valve assembly is arranged on the liquid inlet flow path and is used for regulating the liquid flow of the liquid inlet flow path;

the pump body is arranged on the converging flow path, the air dissolving device has an air inlet state and an air dissolving state, the pressure regulating valve component reduces the liquid flow of the liquid inlet flow path in the air inlet state, and the pump body operates to pump the liquid away from the liquid inlet flow path so that the air inlet path can supply air to the mixing cavity;

under the gas dissolving state, the pressure regulating valve component increases the flow of the liquid inlet flow path, the pump body stops running, and the gas in the mixing cavity is dissolved in the liquid to form gas dissolving liquid.

2. The micro-nano bubble liquid generating system according to claim 1, wherein the pressure regulating valve assembly comprises a flow regulating valve and a pressure stabilizing valve which are arranged in parallel, and the flow regulating valve is used for regulating the liquid flow of the liquid inlet flow path; the flow regulating valve reduces the liquid flow of the liquid inlet flow path and the pump body operates to enable the air dissolving device to be in an air inlet state.

3. The micro-nano bubble liquid generating system according to claim 1, wherein the pressure regulating valve assembly comprises a normally open valve or a normally closed valve for regulating the on-off of the liquid and a pressure stabilizing valve, and the pressure stabilizing valve is connected in parallel with the normally open valve or the normally closed valve;

the pressure stabilizing valve is opened when the normally open valve is closed or the normally closed valve is closed, and the pump body operates to enable the air dissolving device to be in an air inlet state.

4. The micro-nano bubble liquid generating system according to claim 2 or 3, wherein the liquid inlet flow path comprises a first liquid inlet flow path and a second liquid inlet flow path, the liquid outlet end of the first liquid inlet flow path is communicated with the gas outlet end of the gas inlet path, the first liquid inlet flow path is provided with a flow regulating valve, a normally open valve or a normally closed valve, and the second liquid inlet flow path is provided with the pressure stabilizing valve;

and the liquid outlet side of the second liquid inlet flow path is connected with the confluence flow path or the liquid outlet flow path.

5. The micro-nano bubble liquid generating system according to claim 4, wherein when the liquid outlet side of the second liquid inlet flow path is connected to the merging flow path, the liquid outlet side is located at a front side or a rear side of the pump body.

6. The micro-nano bubble liquid generating system according to claim 1, further comprising a one-way valve disposed on the air inlet path to enable gas to flow from the air inlet path to the mixing chamber in one way.

7. The micro-nano bubble liquid generating system according to claim 6, further comprising an inflator pump disposed on the air inlet path, wherein the inflator pump is capable of inflating the mixing chamber.

8. 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.

9. The micro-nano bubble liquid generating system according to claim 8, further comprising a controller, wherein the controller is in communication connection with the water flow sensor, the pressure regulating valve assembly and the pump body, the controller is configured to control the pressure regulating valve assembly to close or reduce the opening degree when the accumulated water flow of the water flow sensor is greater than a first preset flow or the accumulated service time of the water flow sensor is greater than a first preset time, and the controller controls the pump body to operate to supplement gas to the mixing chamber.

10. The micro-nano bubble liquid generating system according to claim 9, further comprising a liquid level sensor in communication 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 receives a signal of the liquid level height.

11. The micro-nano bubble liquid generating system according to claim 10, wherein the liquid level sensor is disposed at a lower portion of the mixing chamber, and when the controller receives an air inlet signal, the controller is configured to control the pressure regulating valve assembly to reduce a flow rate or close and the pump body to operate; or the liquid level sensor is arranged above the middle part of the mixing cavity, and the controller is used for controlling the gas dissolving device to enter an air inlet state when the liquid level is higher than a first preset liquid level height threshold value.

12. The micro-nano bubble liquid generating system according to claim 11, wherein when the liquid level sensor is disposed at a lower portion of the mixing chamber, the controller is further configured to control the pump body to stop operating and control the pressure regulating valve assembly to increase a flow rate or open to enter a dissolved air state when the liquid level is within a second preset liquid level threshold.

13. The micro-nano bubble liquid generating system according to claim 9, further comprising a water outlet switch, wherein the water outlet switch is disposed on the water outlet flow path, the water outlet switch is in communication connection with the controller, and the controller controls the mixing chamber to be in an air inlet state when the water outlet switch is turned on and the water flow sensor detects water flow.

14. The micro-nano bubble liquid generating system according to claim 13, wherein the controller is configured to control the mixing chamber to be in an air intake state again when the water outlet switch is turned off for a time period longer than a second preset time and the water outlet switch is turned on again.

15. The micro-nano bubble liquid generating system according to claim 14, wherein the controller controls the mixing chamber to be in an air intake state to replenish air again when the water outlet switch is turned on to off last time, the accumulated water flow of the water flow sensor is greater than a second preset flow, and the water outlet switch is turned on again.

16. 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.

17. The micro-nano bubble liquid generating system according to claim 16, 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.

18. A water heater, comprising:

the micro-nano bubble liquid generation system according to any one of claims 1-17;

and the heating device is arranged on the converging flow path and is positioned between the pump body and the gas dissolving device, or the heating device is arranged on the liquid outlet flow path.