Micro-bubble water purifying device

Abstract

The utility model provides a micro-bubble water purifying device which solves the problem that the water purifying effect is influenced due to the fact that liquid is reserved in a micro-bubble generating module in the prior art. The microbubble water purifying device comprises an air inlet pipeline, a drainage flow path, a booster pump and a microbubble flow path used for producing microbubble water, the microbubble flow path comprises a jet flow cavity and an air mixing cavity, the air inlet pipeline is connected with a throat part of the jet flow cavity, the water outlet end of the jet flow cavity is connected with the water inlet end of the booster pump, and the water outlet end of the booster pump is connected with the water inlet end of the air mixing cavity. The drainage flow path is communicated with the jet flow cavity. As the jet flow cavity is connected with the drainage flow path, water stored in the jet flow cavity can be drained from the drainage flow path, so that bubble water with sufficient bubble content can be output more quickly after the water using terminal is restarted, and the water purifying effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water purification, and particularly relates to a microbubble water purification device. Background Art

[0002] With the improvement of people's living standards, people pay more and more attention to the health of domestic water, and microbubble water purification devices begin to be widely used. Microbubble water has the characteristics of a large specific surface area and a long existence time. Microbubbles will quickly adhere to the surface of objects in water. As the gas in the microbubbles dissolves and is squeezed by force, the bubbles gradually shrink, forming an ultra-high pressure inside, and finally burst. A shock wave of instant high temperature and high pressure and hydroxyl free radicals generated by ultrasonic waves will be formed around, which has a strong cleaning effect and can kill bacteria.

[0003] The microbubble generation module in the microbubble water purification device has a jet cavity. The inner diameter of the jet cavity becomes smaller from large. The flow rate of the water passing through the jet cavity increases, thereby generating negative pressure and sucking in air, mixing the air with the water, and then generating microbubble water. When the water purification device stops running, the water flow stops, and the remaining water accumulates in the jet cavity. When the water purification device starts again, since the negative pressure generated by the initial water flow is small, the accumulated water in the jet cavity makes it difficult for gas to flow in, resulting in a decrease in the microbubble content in the effluent, affecting the efficiency of the microbubble water output by the water purification device, and further affecting the water purification effect. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a microbubble water purification device to solve the problem that the microbubble content in the output fluid of the existing microbubble water purification device is small due to the retention of liquid in the microbubble generation module, resulting in poor water purification effect.

[0005] To achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0006] A microbubble water purification device includes an air inlet pipeline, a drainage flow path, a booster pump, and a microbubble flow path for producing microbubble water. The microbubble flow path includes a jet cavity and a gas mixing cavity. The air inlet pipeline is connected to the throat of the jet cavity. The water outlet end of the jet cavity is connected to the water inlet end of the booster pump. The water outlet end of the booster pump is connected to the water inlet end of the gas mixing cavity. The drainage flow path is communicated with the jet cavity.

[0007] In some embodiments of the present application, the microbubble water purification device further includes a vertically arranged Venturi injector. The Venturi injector forms the jet cavity. The water inlet of the Venturi injector is arranged above the water outlet of the Venturi injector. The Venturi injector is configured to make water flow through the Venturi injector from top to bottom to form bubble water.

[0008] The Venturi ejector is arranged vertically, so that water mainly accumulates at the water outlet position of the Venturi ejector under the action of gravity, avoiding the problem of water accumulation at both ends caused by the horizontal arrangement of the Venturi ejector, which is beneficial to drainage.

[0009] In some embodiments of the present application, the microbubble water purification device further includes a main water path, a first branch path and a second branch path;

[0010] The booster pump is arranged on the main water path. A first filter element and a second filter element are also arranged on the main water path. A first water inlet valve is arranged between the first filter element and the booster pump, and a second water inlet valve is arranged between the booster pump and the second filter element;

[0011] The jet cavity is arranged on the first branch path. The water inlet end of the first branch path is connected between the first filter element and the first water inlet valve, and the water outlet end of the first branch path is connected between the first water inlet valve and the booster pump;

[0012] The gas mixing cavity is arranged on the second branch path. The water inlet end of the second branch path is connected between the booster pump and the second water inlet valve, and the water outlet end of the second branch path is used to connect to a water using terminal.

[0013] In some embodiments of the present application, the drainage flow path is connected to the second filter element.

[0014] In some embodiments of the present application, the microbubble water purification device further includes a controller, and the controller is respectively connected to the booster pump, the first water inlet valve, the second water inlet valve and the air inlet valve on the air inlet pipeline;

[0015] When the controller detects the water pressure through the high-pressure switch and determines that the microbubble water using terminal is opened, or when the controller receives the opening instruction of the microbubble water using terminal through the microbubble control switch, the controller closes the first water inlet valve, opens the air inlet valve, the drainage flow path and the booster pump, and intermittently opens the second water inlet valve, and discharges at least part of the accumulated water in the microbubble module by using the drainage flow path; The controller also closes the second water inlet valve and the drainage flow path after the time for opening the drainage flow path reaches a first set time.

[0016] In some embodiments of the present application, a third water inlet valve is further arranged on the first branch path;

[0017] The microbubble water purification device further includes a controller, and the controller is respectively connected to the booster pump, the first water inlet valve, the second water inlet valve, the third water inlet valve and the air inlet valve on the air inlet pipeline;

[0018] When the controller determines that the water pressure is detected by the high-pressure switch and the water terminal for microbubbles is closed, or when the controller receives a closing instruction for the microbubble water terminal through the microbubble control switch, the controller closes the intake valve and the third water inlet valve, opens the second water inlet valve and the drainage flow path, and discharges at least part of the accumulated water in the microbubble module by using the drainage flow path; after the time for opening the drainage flow path reaches a second set time, the controller also closes the second water inlet valve, the drainage flow path, and the booster pump.

[0019] In some embodiments of the present application, a third water inlet valve is further provided on the first branch;

[0020] The microbubble water purification device further includes a controller, and the controller is respectively connected to the booster pump, the first water inlet valve, the second water inlet valve, the third water inlet valve, and the intake valve on the intake pipeline;

[0021] When the controller determines that the water terminal is opened by detecting the water pressure through the high-pressure switch, or when the controller receives an opening instruction for the microbubble water terminal through the microbubble control switch, the controller closes the first water inlet valve, opens the booster pump, the second water inlet valve, and the drainage flow path, and discharges at least part of the accumulated water in the microbubble module by using the drainage flow path; after the time for opening the drainage flow path reaches a third set time, the controller also closes the second water inlet valve and the drainage flow path, and opens the third water inlet valve and the intake valve.

[0022] In some embodiments of the present application, the first filter element is a composite filter element, and the first filter element includes a filter housing and a pre-filter element and a post-filter element disposed within the filter housing;

[0023] A first water inlet and a first water outlet are formed on the pre-filter element, the first water inlet is used for inputting raw water, and the first water outlet is connected to the first water inlet valve; a second water inlet and a second water outlet are formed on the post-filter element, the second water inlet is connected to the water outlet of the second filter element, and the second water outlet is used for connecting to a water terminal.

[0024] In some embodiments of the present application, an intake valve and a check valve are provided on the intake pipeline, and the check valve is located between the intake valve and the jet cavity.

[0025] In some embodiments of the present application, the intake valve is a one-way solenoid valve, and the one-way solenoid valve is arranged to allow gas to flow from the intake end of the intake pipeline through the one-way solenoid valve to the jet cavity, while blocking the flow of liquid in the jet cavity to the intake end.

[0026] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0027] (1) The microbubble water purification device provided by the present utility model includes an air inlet pipeline, a drainage flow path, a booster pump, and a microbubble flow path. The microbubble flow path includes a jet cavity and a gas mixing cavity. The jet cavity is communicated with the drainage flow path. By using the drainage flow path to drain at least part of the accumulated water remaining in the jet cavity, it effectively avoids the problem that the accumulated water in the jet cavity affects the bubble inflow when the microbubble water outlet is opened again, resulting in a reduction in the bubble content and further affecting the efficiency of the microbubble water purification device in outputting microbubble water. It ensures that when the microbubble water outlet is reopened, the water-using terminal can output bubble water with sufficient bubble content faster, improving the water purification effect of the water purification device.

[0028] (2) A venturi injector arranged vertically is used to form the jet cavity. After the microbubble water outlet ends, under the action of gravity, the water in the venturi injector is transported downward and accumulates at the water outlet position below, which is more conducive to draining water outward.

[0029] After reading the specific embodiments of the present utility model in conjunction with the accompanying drawings, other features and advantages of the present utility model will become clearer. Brief Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 It is a schematic structural diagram of an embodiment of the microbubble water purification device proposed by the present utility model;

[0032] Figure 2 It is a schematic structural diagram of another embodiment of the microbubble water purification device proposed by the present utility model;

[0033] Figure 3 is Figure 2 a schematic structural diagram of the first filter element in

[0034] Figure 4 is Figure 2 a schematic diagram of the fluid flow direction of the microbubble water purification device in the microbubble mode;

[0035] Figure 5 is Figure 2 a schematic diagram of the fluid flow direction of the microbubble water purification device in the first treatment mode after the microbubble mode;

[0036] Figure 6 isFigure 2 Schematic diagram of the fluid flow direction of the microbubble water purification device in the second treatment mode before the microbubble mode;

[0037] Figure 7 It is a schematic structural diagram of another embodiment of the microbubble water purification device proposed by the present utility model.

[0038] Figure 8 It is a schematic diagram of the fluid flow direction of the microbubble water purification device proposed by the present utility model in the water purification mode.

[0039] In the figure, the reference numerals and their corresponding component names are as follows:

[0040] 10, main water path; 20, first branch; 30, second branch; 40, drainage flow path; 50, intake air pipeline;

[0041] 100, first filter element; 110, pre-filter element; 111, first water inlet; 112, first water outlet; 120, post-filter element; 121, second water inlet; 122, second water outlet; 130, filter housing;

[0042] 210, first water inlet valve; 220, second water inlet valve; 230, third water inlet valve; 240, intake air valve;

[0043] 300, booster pump;

[0044] 400, second filter element;

[0045] 500, pressure reducing valve;

[0046] 600, first check valve;

[0047] 700, drainage valve;

[0048] 800, microbubble module; 810, jet cavity; 811, Venturi injector; 8111, throat; 820, gas mixing cavity;

[0049] 900, water usage terminal; 910, second check valve; 920, high pressure switch. Detailed implementation manners

[0050] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0051] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "upper", "lower", "vertical", "horizontal", "inner", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0052] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0054] Figure 1 The structural schematic diagram of an embodiment of the microbubble water purification device proposed by the present utility model is shown. Refer to Figure 1 , the microbubble water purification device of this embodiment includes an air inlet pipeline 50, a drainage flow path 40, a booster pump 300, and a microbubble flow path for producing microbubble water.

[0055] Among them, the microbubble flow path includes a microbubble module 800, and the microbubble module 800 includes a jet cavity 810 and a gas mixing cavity 820.

[0056] The air inlet pipeline 50 is connected to the throat 8111 of the jet cavity 810, and the water outlet end of the jet cavity 810 is connected to the water inlet end of the booster pump 300; while the water outlet end of the booster pump 300 is connected to the water inlet end of the gas mixing cavity 820, and the water outlet end of the gas mixing cavity 820 is connected to the water using terminal 900. And the drainage flow path 40 is directly or indirectly communicated with the jet cavity 810.

[0057] The water in the water purification device forms bubble water under the action of the booster pump 300 and the microbubble module 800, and is output to the water using terminal 900.

[0058] Specifically, the jet cavity 810 is formed by a Venturi injector 811, and a throat 8111 is formed inside the Venturi injector 811, so that the gas in the intake pipeline 50 is dissolved in water at the throat 8111 of the Venturi injector 811 to form bubble water.

[0059] Generally, the Venturi injector 811 is horizontally placed in the jet cavity 810. When the water output stops, the remaining water will penetrate through the connection under the action of gravity. When the water-using terminal 900 is restarted, since the negative pressure generated by the water flow at the beginning is small, water accumulates at the throat 8111 of the Venturi injector 811, and it is difficult for gas to flow into the water, resulting in a decrease in the content of microbubbles in the water output.

[0060] The placement method of the Venturi injector 811 involved in this application is a vertical setting. Specifically, the Venturi injector 811 includes a water inlet and a water outlet. The water inlet is located at the upper end of the Venturi injector 811, and the water outlet is located at the lower end of the Venturi injector 811, so that water flows through the Venturi injector 811 from top to bottom to form effervescent water.

[0061] The Venturi injector 811 is vertically placed, and the water flows from top to bottom under the suction of the booster pump 300 and the action of gravity, preventing water from accumulating at both ends of the Venturi injector 811 and hindering air intake. After the microbubble water output ends, under the action of gravity, the water in the Venturi injector 811 is transported downward and accumulates at the water outlet position below, which is more conducive to draining water outward.

[0062] A drain valve 700 is provided on the drain flow path 40 to control the on-off of the drain flow path 40.

[0063] The jet cavity 810 is connected to the drain flow path 40. Specifically, the water outlet of the Venturi injector 811 is connected to the drain flow path 40. When there is water accumulated in the Venturi injector 811, without affecting the normal operation of the water purification device, the controller can control the drain valve 700 to open to drain the water accumulated at the lower end of the Venturi injector 811.

[0064] In some other embodiments, a drain pump is further provided on the drain flow path 40 to provide power for drainage and improve the drainage speed of the drain flow path 40.

[0065] In this embodiment, by providing a drain flow path 40 communicated with the jet cavity 810, at least part of the accumulated water in the jet cavity can be drained through the drain flow path 40, effectively avoiding the problem that the accumulated water in the jet cavity 810 affects the gas inflow when the microbubble water output module is restarted again, resulting in a decrease in the content of bubbles in the water and further affecting the efficiency of the water purification device in outputting microbubble water. It ensures that when the microbubble water output is restarted, the water-using terminal can output bubble water with sufficient bubble content faster, improving the water purification effect of the microbubble water purification device.

[0066] Figure 2 The figure shows a schematic structural diagram of another embodiment of the microbubble water purification device proposed by the present utility model. Refer to Figure 2 , the microbubble water purification device includes a main water path 10, a first branch 20, and a second branch 30.

[0067] The main water path 10 is used to connect a water supply end and a water usage terminal 900.

[0068] That is to say, one end of the main water path 10 is connected to the water supply source, and the other end is connected to the water usage terminal 900 such as the user's faucet.

[0069] The water usage terminal 900 includes at least a microbubble water usage terminal according to the actual water usage requirements. Additionally, it may further include a purified water usage terminal.

[0070] A booster pump 300 is arranged on the main water path 10. The principle of the booster pump 300 is to use the low air pressure of a large-area piston to generate the high hydraulic pressure of a small-area piston, so as to increase the flow rate of the fluid and boost the pressure of the fluid.

[0071] In addition, a first filter element 100, a first inlet valve 210, a second inlet valve 220, and a second filter element 400 are also arranged on the main water path 10.

[0072] Among them, the first inlet valve 210 is arranged between the first filter element 100 and the booster pump 300, and the second inlet valve 220 is arranged between the booster pump 300 and the second filter element 400.

[0073] A drainage flow path 40 is connected to the second filter element 400. The drainage flow path 40 can be a drainage structure separately arranged on the second filter element 400.

[0074] In addition, generally, the second filter element 400 itself is provided with a drainage structure. Then, the drainage flow path 40 can also be a structure improved from the drainage structure of the second filter element 400 itself; it can also be a reused drainage structure of the second filter element 400 to reduce the design and installation costs.

[0075] Both the water inlet end and the water outlet end of the first branch 20 are communicated with the main water path 10, and a microbubble module 800 is arranged on the first branch 20.

[0076] Specifically, the water inlet end of the first branch 20 is connected to the pipeline between the first filter element 100 and the first inlet valve 210, and the water outlet end of the first branch 20 is connected to the pipeline between the first inlet valve 210 and the booster pump 300.

[0077] In other words, the water inlet end of the first branch 20 is located upstream of the first inlet valve 210, and the water outlet end of the first branch 20 is located downstream of the first inlet valve 210.

[0078] The first branch 20 is connected in parallel with the first water inlet valve 210. When the first water inlet valve 210 is closed and the third water inlet valve 230 is open, the water flow in the main water path 10 is cut off by the first water inlet valve 210, and the water flow upstream of the first water inlet valve 210 enters the first branch 20.

[0079] One end of the second branch 30 is connected to the main water path, and the other end is connected to the water-using terminal 900.

[0080] Specifically, the water inlet end of the second branch 30 is connected to the pipeline between the booster pump 300 and the second water inlet valve 220, that is, the water inlet end of the second branch 30 is located downstream of the booster pump 300. The water outlet end of the second branch 30 communicates with the water-using terminal 900.

[0081] When the first water inlet valve 210 is open and the second water inlet valve 220 is closed, after the fluid is transported from the main water path 10 through the first water inlet valve 210 to downstream of the booster pump 300, the second water inlet valve 220 cuts off the downstream of the main water path 10. Then, the fluid in the main water path 10 is transported into the second branch 30 and transported to the water-using terminal 900 through the second branch 30.

[0082] When the first water inlet valve 210 is closed, the second water inlet valve 220 is closed, and the third water inlet valve 230 is open, the water flow in the main water path 10 is cut off by the first water inlet valve 210. The water flow upstream of the first water inlet valve 210 enters the first branch 20, is transported through the first branch 20 to downstream of the booster pump 300, then enters the second branch 30, and is transported to the water-using terminal 900 through the second branch 30.

[0083] The jet cavity 810 communicates with the first branch 20, the gas mixing cavity 820 communicates with the second branch 30, and the jet cavity 810 is also connected to the intake pipeline 50 for injecting air bubbles into the water flow to form bubble water.

[0084] The formation method of the bubble water of the micro-bubble module 800 is the prior art and is not the design focus of this application, so it will not be elaborated here.

[0085] An intake valve 240 and a check valve are provided on the intake pipeline 50. The check valve at this position is defined as the first check valve 600. The intake valve 240 is used to control the on-off of the intake pipeline 50. When micro-bubble water needs to be output, the intake valve 240 is open to facilitate the mixing of gas into the water flow. When clean water is output, the intake valve 240 is closed and no gas is mixed into the water flow.

[0086] In some embodiments of the present application, the intake valve 240 is a one-way solenoid valve. The one-way solenoid valve is arranged to allow gas to flow from the intake end of the intake pipe 50 through the one-way solenoid valve to the jet chamber 810, while blocking the flow of liquid in the jet chamber 810 towards the intake end. The intake valve 240 adopts the structure of a one-way solenoid valve. If the first check valve 600 fails, the one-way solenoid valve can also seal the water to prevent water leakage after the failure of the first check valve 600, improving the safety of the water purification device.

[0087] In some embodiments of the present application, the second filter element 400 is an RO filter element. The drain flow path 40 is provided on the second filter element 400, and a drain valve 700 is connected to the drain flow path 40 for controlling the on / off of the drain flow path 40. That is, when drainage is required, the drain valve 700 is opened.

[0088] The first filter element 100 at least includes a filter element for primary filtration of raw water. The first filter element 100 can also be a composite filter element that combines several filter elements with independent functions on one filter element as needed, achieving multiple filtration functions simultaneously. By adopting a composite filter element, the filtration cost is low, less materials are used in manufacturing, fewer supporting devices are required during use, and space and time are saved during use.

[0089] The second filter element 400 is an RO filter element, and the RO filter element is itself configured with a drainage structure. Then, the drain flow path 40 can reuse the drainage structure of the RO filter element. A drain valve 700 is provided on the drain flow path 40 to control the on / off of the drain flow path 40 through the drain valve 700.

[0090] Figure 3 Shows Figure 2 The structural schematic diagram of the first filter element 100 in Figure 3 At the same time, in combination with Figure 2 In some embodiments of the present application, the first filter element 100 in the present application is a composite filter element, including two filter elements that work independently of each other. Specifically, the first filter element 100 includes a filter housing 130, a pre-filter element 110, and a post-filter element 120. The pre-filter element 110 and the post-filter element 120 are both installed in the filter housing 130.

[0091] A first water inlet 111 and a first water outlet 112 are formed on the pre-filter element 110, and a second water inlet 121 and a second water outlet 122 are formed on the post-filter element 120.

[0092] The first water inlet 111 is used to input raw water. That is, the first water inlet 111 is connected to the water supply source through a pipeline. The first water outlet 112 is connected to the first intake valve 210 through the main water path 10.

[0093] The second water inlet 121 is connected to the output end of the second filter element 400. That is, the water filtered by the second filter element 400 is input into the post-filter element 120 from the second water inlet 121. The second water outlet 122 is communicated with the water-using terminal 900, and the water filtered by the post-filter element 120 is output to the water-using terminal 900.

[0094] After the water is input into the pre-filter element 110 from the first water inlet 111 for primary treatment, it is output from the first water outlet 112. After being pressurized by the booster pump 300 on the main water path 10 and secondary-filtered by the second filter element 400, it is input into the post-filter element 120 from the second water inlet 121. After being processed again by the post-filter element 120, it is output from the second water outlet 122 and finally delivered to the water-using terminal 900.

[0095] Refer again to Figure 2 , a second check valve 910 is provided between the second water outlet 122 and the water-using terminal 900.

[0096] The first check valve 600 provided on the intake pipeline 50 and the second check valve 910 provided between the second water outlet 122 and the water-using terminal 900 are both one-way valves to prevent the backflow of gas or water.

[0097] The structures of the first check valve 600 and the second check valve 910 are both prior arts and will not be described in detail herein.

[0098] A high-pressure switch 920 is further provided between the second water outlet 122 and the water-using terminal 900 for detecting the on / off state of the water-using terminal.

[0099] In some embodiments of the present application, in addition to the third water inlet valve 230 provided on the first branch 20, a pressure reducing valve 500 is further provided.

[0100] The third water inlet valve 230 is located upstream of the pressure reducing valve 500. The pressure reducing valve 500 is a valve that reduces the inlet pressure to a required outlet pressure and relies on the energy of the medium itself to automatically maintain the stability of the outlet pressure.

[0101] That is, the pressure reducing valve 500 is a throttling element with variable local resistance, that is, by changing the throttling area, the flow rate and the kinetic energy of the fluid are changed, resulting in different pressure losses, so as to achieve the purpose of pressure reduction.

[0102] The microbubble water purification device at least includes a microbubble mode:

[0103] The microbubble water purification device is formed such that the raw water sequentially flows through the pre-filter element 110, the jet chamber 810, the booster pump 300, and the gas mixing chamber 820 to form microbubble water, and finally the microbubble water is output through the water-using terminal 900.

[0104] Refer toFigure 4 As shown by Figure 2 the schematic diagram of the fluid flow direction of the microbubble device with the

[0105] structure in the microbubble mode. In the microbubble mode, the first water inlet valve 210 and the second water inlet valve 220 are closed, and the third water inlet valve 230, the air inlet valve 240, and the booster pump 300 are opened.

[0106] Specifically, since the first water inlet valve 210 is closed and the third water inlet valve 230 is opened, after the water is filtered by the pre-filter element 110 in the first filter element 100, it enters the first branch 20 through the front section of the main water path 10.

[0107] The pressure reducing valve 500 on the first branch 20 reduces the pressure of the water to an appropriate water pressure and then transports it into the jet chamber 810. At the same time, since the air inlet valve 240 is opened, the gas enters through the air inlet end of the air inlet pipeline 50 and enters the jet chamber 810 from the air inlet end of the throat 8111 of the jet chamber 810 to be mixed with the water. Since the second water inlet valve 220 is closed, the booster pump 300 sucks in all the water and air in the jet chamber 810, pressurizes the water and then discharges it into the gas mixing chamber 820 of the microbubble module 800 on the second branch 30. The water and air are further mixed evenly in the gas mixing chamber 820 to form uniform microbubble water, which is output through the faucet water using terminal 900.

[0107] The venturi injector in the microbubble module 800 has a decreasing pipe diameter, so the flow rate of the water increases to generate negative pressure to suck in air, mix the air with the water, and then generate microbubble water.

[0108] The microbubble module 800 is used in cooperation with the booster pump 300 to make the water flow rate larger, making it easier to suck in air and form microbubbles.

[0109] The microbubble water purification device involved in the present application further includes a controller (not shown in the figure), and the controller is electrically connected to the high-pressure switch 920 for obtaining the on / off state of the water using terminal through the high-pressure switch 920.

[0110] In some other embodiments, the microbubble water purification device may further include a microbubble control switch for controlling the on or off of the microbubble mode. The microbubble control switch can be set on the water using terminal 900, or can also be set on the controller or the control terminal of the intelligent water purification device.

[0111] The controller is also respectively connected to the booster pump 300, the first water inlet valve 210, the second water inlet valve 220, the third water inlet valve 230, and the air inlet valve 240.

[0112] When the controller detects the water pressure through the high-pressure switch 920 and determines that the water-using terminal is turned on, or when the controller receives the instruction to open the micro-bubble water-using terminal through the micro-bubble control switch, the first water inlet valve 210 and the second water inlet valve 220 are closed, and the third water inlet valve 230, the air inlet valve 240, and the booster pump 300 are opened.

[0113] In addition to the micro-bubble mode, the micro-bubble water purification device in this application also has a first treatment mode. After the micro-bubble mode ends, the first treatment mode is started, and the jet cavity 810 is drained by using the drainage flow path 40 to avoid the problem that the bubble content decreases and affects the water purification effect when the micro-bubble water outlet is opened again.

[0114] Specifically, referring to Figure 5 shown in the Figure 2 schematic diagram of the fluid flow direction of the micro-bubble device with the

[0115] structure in the first treatment mode, the first treatment mode is configured such that after the water outlet of the micro-bubble mode ends, the air inlet valve 240 and the third water inlet valve 230 are closed, and the second water inlet valve 220 and the drain valve 700 on the drainage flow path 40 are also opened.

[0116] In this state, a first treatment flow path is formed between the micro-bubble module 800 and the drainage flow path 40 for draining at least part of the accumulated water in the micro-bubble module 800.

[0117] Specifically, when the controller detects the water pressure through the high-pressure switch 920 and determines that the micro-bubble water-using terminal is closed, or when the controller receives the instruction to close the micro-bubble water-using terminal 900 through the micro-bubble control switch, the controller closes the air inlet valve 240 and the third water inlet valve 230, and opens the second water inlet valve 220 and the drainage flow path 40. The controller also closes the second water inlet valve 220, the drainage flow path 40, and the booster pump 300 after the time for opening the drainage flow path 40 reaches the second set time.

[0118] The first treatment mode is set to prevent the accumulation of water in the micro-bubble module 800 and avoid the accumulated water from entering the air inlet valve 240, ensuring that the air inlet valve 240 can intake air normally when it is opened next time, and a sufficient amount of gas can be input into the micro-bubble module 800.

[0119] In other words, in the first treatment mode, after the water use ends, the booster pump 300 works for a second set time with a delay to drain the water in the jet cavity 810 of the micro-bubble module 800 from the drainage flow path 40. At this time, the water in the channel of the air inlet valve 240 can also be drained accordingly, preventing water in the channel of the air inlet valve 240 from affecting the micro-bubble water outlet effect when the bubble water is produced next time.

[0120] In some embodiments of the present application, in addition to the microbubble mode, the microbubble water purification device may also have a second processing mode. When the microbubble mode is turned on, the second processing mode is turned on to accelerate the discharge of the water accumulated in the jet chamber 810, improve the speed of the appropriate bubble water flowing out of the water use terminal 900, and improve the water purification effect.

[0121] Specifically, refer to Figure 6 shown with Figure 2 a schematic diagram of the fluid flow direction of the microbubble device with the

[0122] structure in the second processing mode. The second processing mode is configured such that when the microbubble mode is turned on, the second inlet valve 220 and the drain valve 700 are opened.

[0123] In this state, a second processing flow path is formed between the microbubble module 800 and the drain flow path 40, and at least part of the accumulated water in the microbubble module 800 can be discharged. Another part of the accumulated water is discharged from the water use terminal 900 through the second branch 30.

[0124] Specifically, when the controller detects the water pressure through the high-pressure switch 920 to determine that the microbubble water use terminal is turned on, or when the controller receives the opening instruction of the microbubble water use terminal 900 through the microbubble control switch, the controller closes the first inlet valve 210, turns on the booster pump 300, the second inlet valve 220 and the drain valve 700, opens the drain flow path 40, and at least part of the accumulated water in the microbubble module 800 is discharged from the drain flow path 40. Another part of the accumulated water is discharged from the water use terminal 900 through the second branch 30. By draining water through the two flow paths simultaneously, the speed of draining the accumulated water can be accelerated, and the time for normal bubble water to flow out from the water use terminal 900 can be shortened.

[0125] After the controller controls the opening time of the drain flow path to reach the third set time, the controller controls the second inlet valve 220 and the drain valve 700 to close, and turns on the third inlet valve 230 and the air inlet valve 240 to enter the normal microbubble mode for water output. The third set time can be adjusted according to the actual working conditions.

[0126] By setting the second processing mode, since part of the bubble water with a small gas content is discharged from the drain flow path 40, the water use terminal 900 can also increase the speed of outputting bubble water with sufficient bubble content.

[0127] Specifically, refer to Figure 7 the schematic structural diagram of another embodiment of the microbubble water purification device shown, this embodiment is the same as Figure 2The difference of this embodiment is that a pressure reducing valve 500 is provided on the first branch 20 of this embodiment, and the Figure 2 third water inlet valve 230 located upstream of the pressure reducing valve 500 on the first branch 20 in the embodiment is missing.

[0128] For the microbubble water purification device with the Figure 7 structure, when the controller detects the water pressure through the high-pressure switch 920 and determines that the microbubble water use terminal is opened, or when the controller receives the microbubble water use terminal opening instruction through the microbubble control switch, the first water inlet valve 210 is closed, the air inlet valve 240, the booster pump 300 and the drain valve 700 on the drain flow path 40 are opened, and the second water inlet valve 220 is intermittently opened.

[0129] Before the booster pump 300 reaches the normal power, when the second water inlet valve 220 is in the open state, the water in the jet cavity 810 in the microbubble module 800 can be completely pumped out by the booster pump 300. Due to the opening of the second water inlet valve 220, a part of the pressurized water enters the air mixing cavity 820, and a part flows out through the drain flow path 40. Draining water through the two flow paths at the same time can accelerate the drainage speed of the accumulated water and shorten the time for normal bubble water to flow out from the water use terminal 900, which helps the bubble water to be output quickly and stably.

[0130] The controller also closes the second water inlet valve 220 and the drain valve 700 after the time for opening the drain flow path 40 reaches the first set time, that is, after the booster pump 300 reaches the preset power, and all the bubble water flows out from the water use terminal 900 through the second branch 30, providing bubble water with sufficient bubble content for the user.

[0131] In this embodiment, opening the second water inlet valve 220 and the booster pump 300 at the same time will affect the water volume and flow rate of the pressurized water entering the air mixing cavity 820. Therefore, before reaching the working power of the booster pump 300, the controller controls the on-off of the second water inlet valve 220 to achieve intermittent opening of the second water inlet valve 220. For example, control the second water inlet valve 220 to open for 2 seconds and close for 2 seconds. After 10 seconds, the normal working power of the booster pump 300 is reached, and the second water inlet valve 220 is completely closed.

[0132] The microbubble water purification device involved in this application further includes a water purification mode.

[0133] Referring to Figure 8 the schematic diagram of the fluid flow direction of the microbubble water purification device shown in the water purification mode, in the water purification mode, the third water inlet valve 230 and the drain valve 700 are closed, and the first water inlet valve 210 and the second water inlet valve 220 are opened.

[0134] Then, the microbubble water purification device forms a water purification passage in which water sequentially flows through a pre-filter 110, a booster pump 300, a second filter element 400, and a post-filter 120 to a water use terminal 900.

[0135] That is, water flows along the main water path 10 through the pre-filter 110, the booster pump 300, the second filter element 400, and the post-filter 120 in sequence and then is output to the water use terminal 900.

[0136] Specifically, the microbubble water purification device includes a water purification switch button. When the controller detects the water pressure through the high-pressure switch 920 and determines that the water use terminal for water purification is opened, or when the controller receives a water purification start instruction through the water purification switch, the controller closes the third water inlet valve 230 and the drain valve 700, and opens the first water inlet valve 210 and the second water inlet valve 220.

[0137] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, for those of ordinary skill in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions required to be protected by the present invention.

Claims

1. A microbubble water purification device, characterized in that: It comprises an air intake pipeline, a drainage flow path, a booster pump and a microbubble flow path for producing microbubble water, wherein the microbubble flow path comprises a jet chamber and an aeration chamber, the air intake pipeline is connected to the throat of the jet chamber, the water outlet end of the jet chamber is connected to the water inlet end of the booster pump, the water outlet end of the booster pump is connected to the water inlet end of the aeration chamber, and the drainage flow path is in communication with the jet chamber.

2. The microbubble water purification device according to claim 1, characterized in that: It also includes a vertically arranged Venturi ejector, which forms the ejection chamber. The water inlet of the Venturi ejector is arranged above the water outlet of the Venturi ejector. The Venturi ejector is configured to allow water to flow through the Venturi ejector from top to bottom to form bubble water.

3. The microbubble water purification device according to claim 1, characterized in that: It also includes the main waterway, the first branch and the second branch; The booster pump is arranged on the main waterway, and a first filter element and a second filter element are also arranged on the main waterway, a first water inlet valve is arranged between the first filter element and the booster pump, and a second water inlet valve is arranged between the booster pump and the second filter element; The jet cavity is arranged on the first branch, the water inlet end of the first branch is connected between the first filter element and the first water inlet valve, and the water outlet end of the first branch is connected between the first water inlet valve and the booster pump; The gas mixing chamber is arranged on the second branch, the water inlet end of the second branch is connected between the booster pump and the second water inlet valve, and the water outlet end of the second branch is used to connect to the water terminal.

4. The microbubble water purification device according to claim 3, characterized in that: The drainage flow path is connected to the second filter element.

5. The microbubble water purification device according to claim 4, characterized in that: The microbubble water purification device further includes a controller, which is respectively connected to the booster pump, the first water inlet valve, the second water inlet valve, and the air inlet valve on the air inlet pipeline; When the controller detects the water pressure through the high-pressure switch and determines that the microbubble water terminal is turned on, or when the controller receives a microbubble water terminal turn-on instruction through the microbubble control switch, the first water inlet valve is closed, the air inlet valve, the drainage flow path and the booster pump are opened, and the second water inlet valve is intermittently opened to drain at least part of the accumulated water in the microbubble module through the drainage flow path; The controller further closes the second water inlet valve and the drainage flow path after the time for opening the drainage flow path reaches a first set time.

6. The microbubble water purification device according to claim 4, characterized in that: The first branch is also provided with a third water inlet valve; The microbubble water purification device further includes a controller, which is respectively connected to the booster pump, the first water inlet valve, the second water inlet valve, the third water inlet valve, and the air inlet valve on the air inlet pipeline; When the controller detects the water pressure through the high-pressure switch and determines that the microbubble water terminal is closed, or when the controller receives a microbubble water terminal closing instruction through the microbubble control switch, the controller closes the air inlet valve and the third water inlet valve, opens the second water inlet valve and the drainage flow path, and uses the drainage flow path to drain at least part of the accumulated water in the microbubble module; The controller further closes the second water inlet valve, the drainage flow path and the booster pump after the time for opening the drainage flow path reaches a second set time.

7. The microbubble water purification device according to claim 4, characterized in that: The first branch is also provided with a third water inlet valve; The microbubble water purification device further includes a controller, which is respectively connected to the booster pump, the first water inlet valve, the second water inlet valve, the third water inlet valve, and the air inlet valve on the air inlet pipeline; When the controller detects the water pressure through the high-pressure switch and determines that the water terminal is turned on, or when the controller receives a microbubble water terminal turn-on instruction through the microbubble control switch, the controller closes the first water inlet valve, turns on the booster pump, the second water inlet valve and the drainage flow path, and uses the drainage flow path to drain at least part of the accumulated water in the microbubble module; The controller also closes the second water inlet valve and the water drain path, and opens the third water inlet valve and the air inlet valve after the time for opening the water drain path reaches a third set time.

8. The microbubble water purification device according to claim 3, characterized in that: The first filter element is a composite filter element, and the first filter element comprises a filter housing and a pre-filter element and a post-filter element disposed in the filter housing; The pre-filter element is formed with a first water inlet and a first water outlet, the first water inlet is used to input raw water, and the first water outlet is connected to the first water inlet valve; the post-filter element is formed with a second water inlet and a second water outlet, the second water inlet is connected to the water outlet of the second filter element, and the second water outlet is used to connect to a water use terminal.

9. The microbubble water purification device according to claim 1, characterized in that: The air intake pipeline is provided with an air intake valve and a check valve, and the check valve is located between the air intake valve and the jet chamber.

10. The microbubble water purification device according to claim 9, characterized in that: The air intake valve is a one-way solenoid valve, which is configured to allow gas to flow from the air intake end of the air intake pipeline to the jet cavity through the one-way solenoid valve, while cutting off the flow of liquid in the jet cavity to the air intake end.

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