A water purifier

Abstract

An embodiment of the present invention discloses a water purifier, comprising a microbubble water circuit, a pure water circuit, and a concentrated water circuit. The microbubble water circuit is used to produce microbubble water, the pure water circuit is used to produce pure water, and the concentrated water circuit is used to discharge concentrated water. Part of the microbubble water circuit and the pure water circuit share a common water circuit, which includes a booster pump and an RO filter element connected in sequence. The water purifier also includes an air intake assembly, the concentrated water circuit is connected to the water inlet pipe of the booster pump in the common water circuit via an air intake pipe, and the air intake assembly is connected to the air intake pipe. The booster pump is used to increase water pressure, and the RO filter element is used to perform RO reverse osmosis filtration and gas-water mixing. The embodiment of the present invention solves the problem that existing water purifiers equipped with a microbubble water function require a separate pressure vessel, resulting in poor integration and high cost. At the same time, providing an air intake pipe in the concentrated water circuit can improve water saving rate.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of water purification technology, and in particular to a water purifier. Background Art

[0002] The general function of existing water purifiers is to provide purified drinking water, which is generally used to wash fruits, vegetables, oil stains or directly as drinking water. Its function is still relatively simple, and the washing effect of the purified water provided after purification is also very limited, and the cleaning ability is poor.

[0003] The application of microbubble water has gradually expanded into the water purification field. Microbubble water is composed of a mixture of water and air, with internal bubbles generally ranging in size from 1 to 100 microns. Water purifiers equipped with microbubble water release microbubble water from the faucet or outlet pipe. Users can use the water to clean fruits, vegetables, meat, and eggs. It effectively removes pesticide residues, cleans micropores, and sterilizes.

[0004] Existing water purifiers equipped with micro-bubble water function generally provide a separate pressure container, which requires high-pressure mixing inside before water is discharged. It occupies a certain volume, has poor integration, and also increases the cost of use. Summary of the Invention

[0005] The present invention provides a water purifier to address the deficiencies of the prior art, and utilizes the booster pump and RO filter element of the existing water purifier to mix air and water to produce micro-bubble water. This can reduce the connection interfaces of the system water circuit and the volume of the water purifier, thereby reducing costs. At the same time, an air intake pipe is provided in the concentrated water circuit, so that part of the concentrated water in the water circuit system can be refluxed through the air intake pipe to prepare micro-bubble water, thereby improving the water saving rate.

[0006] An embodiment of the present invention provides a water purifier, comprising a microbubble water channel, a pure water channel, and a concentrated water channel, wherein the microbubble water channel is used to produce microbubble water, the pure water channel is used to produce pure water, and the concentrated water channel is used to discharge concentrated water;

[0007] The microbubble water channel and part of the pure water channel are shared to form a common water channel, and the common water channel includes a booster pump and an RO filter element connected in sequence;

[0008] The water purifier further includes an air intake assembly, the concentrated water channel is connected to the water inlet pipeline of the booster pump in the common water channel via an air intake pipe, and the air intake assembly is connected to the air intake pipe;

[0009] The booster pump is used to increase water pressure, and the RO filter element is used to perform RO reverse osmosis filtration and gas-water mixing.

[0010] Optionally, the air intake assembly includes an air pump and a first one-way valve, the first one-way valve is located on the air outlet pipe of the air pump, and the conducting direction of the first one-way valve is from the air pump toward the public waterway.

[0011] Optionally, a second one-way valve and a third water inlet valve are further provided on the air inlet pipe. The third water inlet valve and the second one-way valve are arranged in sequence along the air inlet direction of the air inlet pipe. The conduction direction of the second one-way valve is from the concentrated water channel to the common water channel.

[0012] Optionally, the micro-bubble water circuit further includes a bubbler and a micro-bubble water faucet, and the bubbler is located on the water outlet pipe of the micro-bubble water circuit and connected to the micro-bubble water faucet.

[0013] Optionally, the pure water waterway further includes a defoaming component and a pure water faucet, and the defoaming component is located on the water outlet pipe of the pure water waterway and connected to the pure water faucet.

[0014] Optionally, the common waterway further comprises a composite filter element, and the composite filter element comprises a pre-filter element and a post-filter element.

[0015] Optionally, the composite filter element further includes a first water inlet, a first water outlet, a second water inlet and a second water outlet;

[0016] The first water inlet is used to introduce raw water. After being purified by the pre-filter, the raw water is discharged from the first water outlet and then enters the remaining water path of the micro-bubble water water path through the booster pump and the RO filter. Alternatively, the raw water is purified by the pre-filter and discharged from the first water outlet and then enters the remaining water path of the pure water water path through the booster pump and the RO filter, and then is purified by the post-filter through the second water inlet and discharged from the second water outlet.

[0017] Optionally, the common water circuit further includes a pressure reducing valve, which is connected between the first water outlet of the composite filter element and the water inlet of the booster pump, and the air intake pipe is connected to the pipeline between the pressure reducing valve and the booster pump.

[0018] Optionally, the pure water circuit further includes a one-way high-pressure switch, which is connected between the pure water outlet of the RO filter element and the second water inlet of the composite filter element.

[0019] Optionally, the concentrated water circuit includes a concentrated water combination valve, a first water inlet valve and a drain valve, and the concentrated water combination valve, the first water inlet valve and the drain valve are sequentially connected between the concentrated water outlet of the RO filter element and the concentrated water outlet of the water purifier;

[0020] The air intake pipe is connected to a pipe between the first water intake valve and the water discharge valve in the concentrated water channel.

[0021] Optionally, the water purifier further includes a control device, wherein the control device is electrically connected to the one-way high-voltage switch;

[0022] The control device is also electrically connected to the boost pump, the concentrated water combination valve, the first water inlet valve, the third water inlet valve and the drain valve respectively;

[0023] When the control device detects the water pressure through the one-way high-pressure switch and determines that the pure water faucet is turned on, or when the pure water faucet includes a switch button, the control device starts the booster pump, the first water inlet valve and the drain valve, and closes the third water inlet valve to enable the pure water waterway to work when it receives the pure water faucet opening instruction through the switch button.

[0024] Optionally, the micro-bubble faucet includes a Hall switch or a switch button;

[0025] The water purifier further includes a control device, wherein the control device is electrically connected to the Hall switch, or the control device is electrically connected to the switch button;

[0026] The control device is also electrically connected to the air pump, the boost pump, the concentrated water combination valve, the first water inlet valve, the third water inlet valve and the drain valve respectively;

[0027] When the control device detects that the microbubble faucet is turned on through the Hall switch or receives a microbubble faucet opening instruction through the switch button, it starts the air pump, the booster pump, the concentrated water combination valve, the first water inlet valve and the third water inlet valve, and closes the drain valve to enable the microbubble water circuit to operate.

[0028] Optionally, the public waterway further comprises a low-pressure switch connection, and the low-pressure switch is connected to the first water inlet of the composite filter element;

[0029] The control device is electrically connected to the low-pressure switch. When the control device detects that the water pressure is less than a preset value through the low-pressure switch, the control device controls the booster pump to stop working.

[0030] Optionally, the concentrated water circuit further includes a second water inlet valve, one end of the second water inlet valve is connected to the pure water outlet of the RO filter element, and the other end is connected to the pipeline between the first water inlet valve and the drain valve.

[0031] Optionally, the pure water faucet and the micro-bubble water faucet both include a switch button and a solenoid valve, the switch button is used to receive a faucet opening instruction, and the solenoid valve is used to be turned on when the switch button receives the faucet opening instruction.

[0032] Optionally, the microbubble water faucet and the pure water faucet are integrated on the same double faucet, and a water outlet pipe is provided on the double faucet; when the microbubble water faucet is turned on, the water outlet pipe is used to discharge microbubble water, and when the pure water faucet is turned on, the water outlet pipe is used to discharge pure water.

[0033] Optionally, the water pressure of the water pipe in the water purifier is in the range of 0.05-0.1 mPa.

[0034] Optionally, the ratio of the water inlet flow rate to the air inlet flow rate of the water purifier is in the range of 18:1 to 100:1.

[0035] Optionally, the flow rate of the booster pump is 1-10 L / min.

[0036] The water purifier provided by an embodiment of the present invention includes a microbubble water channel, a pure water channel and a concentrated water channel. The microbubble water channel is used to produce microbubble water, the pure water channel is used to produce pure water, and the concentrated water channel is used to discharge concentrated water; part of the water channels in the microbubble water channel and the pure water channel are shared to form a common water channel, and the common water channel includes a booster pump and an RO filter element connected in sequence; the water purifier also includes an air intake assembly, the concentrated water channel is connected to the water inlet pipe of the booster pump in the common water channel through an air intake pipe, and the air intake assembly is connected to the air intake pipe; the booster pump is used to increase the water pressure, and the RO filter element is used to perform RO reverse osmosis filtration and air-water mixing. The embodiment of the present invention utilizes the booster pump and RO filter element of the existing water purifier to mix air and water to produce micro-bubble water, solving the problem that the existing water purifier equipped with the micro-bubble water function needs to be equipped with a separate pressure vessel, which has poor integration and high cost. It reduces the connection interface of the system water channel and the volume of the water purifier, saving overall space; at the same time, the concentrated water channel is connected to the water inlet pipeline of the booster pump in the public water channel through the air intake pipe, so that part of the concentrated water in the water channel system can be refluxed through the air intake pipe to prepare micro-bubble water, thereby improving the water saving rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural diagram of a water purifier provided by an embodiment of the present invention;

[0038] 1-boosting pump, 2-RO filter element, 3-air pump, 4-first one-way valve, 5-second one-way valve, 6-third water inlet valve, 7-bubbler, 8-defoaming assembly, 9-composite filter element, 10-pressure reducing valve, 11-one-way high-pressure switch, 12-concentrated water combination valve, 13-first water inlet valve, 14-drain valve, 15-low-pressure switch, 16-second water inlet valve. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0040] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present invention are described based on the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present invention. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is formed "on" or "under" another element, it can not only be formed directly "on" or "under" another element, but can also be formed indirectly "on" or "under" another element through an intermediate element. The terms "first", "second", etc. are only used for descriptive purposes and do not indicate any order, quantity or importance, but are only used to distinguish different components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Figure 1 This is a schematic diagram of the structure of a water purifier provided by an embodiment of the present invention, with reference to Figure 1 The water purifier includes a microbubble water channel, a pure water channel and a concentrated water channel. The microbubble water channel is used to produce microbubble water, the pure water channel is used to produce pure water, and the concentrated water channel is used to discharge concentrated water; part of the water channels in the microbubble water channel and the pure water channel are shared to form a common water channel, and the common water channel includes a booster pump 1 and an RO filter element 2 connected in sequence; the water purifier also includes an air intake assembly, the concentrated water channel is connected to the water inlet pipe of the booster pump 1 in the common water channel through an air intake pipe, and the air intake assembly is connected to the air intake pipe; the booster pump 1 is used to increase water pressure, and the RO filter element 2 is used to perform RO reverse osmosis filtration and gas-water mixing.

[0042] The common waterway refers to the portion of the waterway shared by the microbubble water and pure water channels in the water purifier, involving a booster pump 1 and an RO filter cartridge 2. The booster pump 1 refers to a power unit installed in the water purifier to increase pressure. Exemplarily, the booster pump 1 can be a modified version of a diaphragm booster pump specifically designed for reverse osmosis systems. Optionally, the booster pump has a flow rate of 1-10 L / min. Preferably, the booster pump has an output operating pressure of 100 Psi and a flow rate of 3-4 L / min. The RO filter cartridge 2 is used for RO reverse osmosis filtration and includes a pure water outlet and a concentrate outlet. The pure water outlet is connected to the remaining waterway of the pure water channel, and the concentrate outlet is connected to the remaining waterway of the microbubble water channel. An air intake assembly is connected to the air intake pipe and is used to pump air into the waterway system, allowing gas to enter the booster pump 1 and RO filter cartridge 2 for gas-water mixing. The booster pump 1 and RO filter cartridge 2 essentially function as pressure vessels, performing high-pressure mixing of gas and water, allowing the gas to quickly reach saturated solubility under pressurized conditions.

[0043] like Figure 1 As shown, since the two ends of the intake pipe are connected to the concentrated water circuit and the water inlet pipe of the booster pump 1 in the public water circuit, respectively, and the intake assembly is connected to the water inlet pipe, when preparing microbubble water, the concentrated water in the water circuit can flow back through the water inlet pipe to the water inlet pipe of the booster pump, thereby improving water conservation. In addition, the concentrated water circuit is connected to the water inlet pipe of the booster pump in the public water circuit through the intake pipe, and the intake assembly is connected to the intake pipe. This increases the length of the intake pipe, enhances gas-water mixing, and achieves saturated dissolved gas.

[0044] The above technical solution is achieved by arranging a microbubble water channel, a pure water channel and a concentrated water channel in the water purifier, wherein the microbubble water channel is used to produce microbubble water, the pure water channel is used to produce pure water, and the concentrated water channel is used to discharge concentrated water; part of the water channels in the microbubble water channel and the pure water channel are shared to form a common water channel, and the common water channel includes a booster pump and an RO filter element connected in sequence; the water purifier also includes an air intake assembly, the concentrated water channel is connected to the water inlet pipe of the booster pump in the common water channel through an air intake pipe, and the air intake assembly is connected to the air intake pipe; the booster pump is used to increase the water pressure, the RO filter element is used to perform RO reverse osmosis filtration, and the booster pump and the RO filter element are also used for gas-water mixing. The embodiment of the present invention realizes the use of the booster pump and RO filter element of the existing water purifier to mix air and water to produce micro-bubble water, which solves the problem that the existing water purifier equipped with micro-bubble water function needs to be equipped with a separate pressure vessel, has poor integration and high cost, reduces the connection interface of the system water channel and the volume of the water purifier, and saves overall space. At the same time, the concentrated water water channel is connected to the water inlet pipeline of the booster pump in the public water channel through the air intake pipe, so that part of the concentrated water in the water system can be refluxed through the air intake pipe to prepare micro-bubble water, thereby improving the water saving rate.

[0045] Continue to refer Figure 1Optionally, the air intake component includes an air pump 3 and a first one-way valve 4, the first one-way valve 4 is located on the air outlet pipe of the air pump 3, and the conducting direction of the first one-way valve 4 is from the air pump 3 toward the public waterway.

[0046] Among them, the air pump 3 and the first one-way valve 4 constitute the air intake component of the micro-bubble water circuit. The air pump 3 is responsible for pumping air, and the first one-way valve 4 is used to control the one-way air intake to prevent the water system from discharging water outward through the air pump 3 in reverse.

[0047] Continue to refer Figure 1 Optionally, a second one-way valve 5 and a third water inlet valve 6 are also provided on the air inlet pipe. The third water inlet valve 6 and the second one-way valve 5 are arranged in sequence along the air inlet direction of the air inlet pipe. The conduction direction of the second one-way valve 5 is from the concentrated water channel to the public water channel.

[0048] The second one-way valve 5 controls the direction of water flow in the intake pipe from the concentrate waterway to the public waterway, preventing water in the water system from flowing directly from the booster pump's water inlet line to the concentrate waterway, which would waste water resources. In this embodiment, the second one-way valve 5 controls the direction of water flow in the intake pipe only from the concentrate waterway to the public waterway, thereby allowing some of the concentrate in the water system to flow back through the intake pipe for the production of microbubble water, thereby improving water conservation. Specifically, when the third water inlet valve 6 is opened, since the second one-way valve 5 directs the flow from the concentrate waterway to the public waterway, water flows through the intake pipe. Simultaneously, the air pump is responsible for pumping air into the intake pipe, allowing air and water to mix in the booster pump and RO filter element.

[0049] Continue to refer Figure 1 Optionally, the micro-bubble water circuit further includes a bubbler 7 and a micro-bubble water faucet (not shown in the figure). The bubbler 7 is located on the water outlet pipe of the micro-bubble water circuit and is connected to the micro-bubble water faucet.

[0050] Optionally, the pure water circuit further includes a defoaming component 8 and a pure water faucet (not shown in the figure). The defoaming component 8 is located on the water outlet pipe of the pure water circuit and is connected to the pure water faucet.

[0051] Among them, the bubbler 7 releases the gas dissolved in the water body through the internal filter screen, so that it forms bubbles that meet the specifications and mixes in the water body to form micro-bubble water. Exemplarily, the bubbler can be a microporous bubbler with a intercepting effect, which can control the diameter of the water bubble to be maintained at <80μm, forming a milky white gas-water mixture. The defoaming component 8 can choose to use an empty tank, an electric stirring device, an electric vibration device, an ultrasonic oscillation device, etc. to achieve different defoaming effects according to the expected defoaming effect. It essentially uses the principle of high-frequency vibration to remove bubbles in the water to solve the problem of bubbles in the pure water end, continuously provide users with pure water without bubbles, and improve user experience. In an exemplary embodiment, the micro-bubble faucet and the pure water faucet can be integrated on the same double faucet, and a water outlet pipe is provided on the double faucet; when the micro-bubble faucet is turned on, the water outlet pipe is used to discharge micro-bubble water, and when the pure water faucet is turned on, the water outlet pipe is used to discharge pure water.

[0052] Continue to refer Figure 1 As shown, optionally, the public waterway further includes a composite filter element 9, and the composite filter element 9 includes a pre-filter element and a post-filter element.

[0053] Optionally, the composite filter element 9 also includes a first water inlet, a first water outlet, a second water inlet and a second water outlet; the first water inlet is used to allow raw water to enter, and the raw water is purified by the pre-filter element and then discharged from the first water outlet, and then enters the remaining water path of the micro-bubble water water path through the booster pump 1 and the RO filter element 2, or the raw water is purified by the pre-filter element and then discharged from the first water outlet, and then enters the remaining water path of the pure water water path through the booster pump 1 and the RO filter element 2, and then purified by the post-filter element through the second water inlet and discharged from the second water outlet.

[0054] The composite filter element 9 can simultaneously filter and purify both microbubble water and pure water, ensuring the quality of both. Specifically, the composite filter element 9 is composed of a pre-filter element and a post-filter element. The pre-filter element can be a PP+CTO filter element, and the post-filter element can be a post-carbon filter element, both of which are not limiting here. The microbubble water and pure water channels primarily reuse the pre-filter element in the composite filter element 9, while the post-filter element is primarily used for the pure water channel. It is understood that the first water inlet of the composite filter element 9 is essentially the raw water inlet, responsible for admitting raw water. After being purified by the pre-filter element in the composite filter element 9 in the public waterway, this raw water is then branched into the microbubble water channel or the pure water channel, thereby producing microbubble water and pure water, respectively. It should be noted that the pure water channel also includes the post-filter element portion of the composite filter element 9, and the water flowing through the pure water channel also needs to be purified by the post-filter element before being discharged as pure water.

[0055] like Figure 1As shown, because the water system of this embodiment utilizes a common waterway structure with a composite filter element 9, the pre-filter element therein can purify raw water, which is then supplied to the remaining microbubble water channel and pure water channel, respectively. This not only ensures the quality of both types of water, but also reduces the pressure on other purification equipment in the two waterways, lowering consumption rates and helping to extend the lifespan of other purification equipment. Furthermore, in the water system of this embodiment, the pure water channel is recirculated to the post-filter element of the composite filter element 9, effectively combining the post-filter element with the pre-filter element to form a composite filter element 9. This increases the integration of the entire waterway and helps to reduce the overall volume.

[0056] Continue to refer Figure 1 As shown, optionally, the public waterway also includes a pressure reducing valve 10, which is connected between the first water outlet of the composite filter element 9 and the water inlet of the booster pump 1, and the air intake pipe is connected to the pipeline between the pressure reducing valve 10 and the booster pump 1.

[0057] Among them, the pressure reducing valve 10 is responsible for reducing the water pressure at the raw water end to prevent the gas and water from being unable to dissolve after entering the booster pump 1 and RO filter element 2 when the water pressure is too high and the water flow is too fast, thereby ensuring effective mixing of the gas and water. For example, the water pressure in the water pipe of the water purifier is in the range of 0.05-0.1mPa, and when used in conjunction with the air pump 3, a stable air intake volume can be output. In an exemplary embodiment, the flow rate of the water purifier is 2L / min, the air intake flow rate is 25-110ml / min, and the water intake flow rate to air intake flow rate ratio of the water purifier is in the range of 18:1 to 100:1.

[0058] Continue to refer Figure 1 As shown, optionally, the pure water circuit further includes a one-way high-pressure switch 11 , which is connected between the pure water outlet of the RO filter element 2 and the second water inlet of the composite filter element 9 .

[0059] In this embodiment, the one-way high-pressure switch 11 is used to control the direction of the remaining water flow in the pure water waterway from the pure water outlet of the RO filter element to the second water inlet of the composite filter element to prepare pure water that has been filtered multiple times.

[0060] Continue to refer Figure 1 As shown, optionally, the concentrated water circuit includes a concentrated water combination valve 12, a first water inlet valve 13 and a drain valve 14, and the concentrated water combination valve 12, the first water inlet valve 13 and the drain valve 14 are connected in sequence between the concentrated water outlet of the RO filter element 2 and the concentrated water outlet of the water purifier; the air intake pipe is connected to the pipe between the first water inlet valve 13 and the drain valve 14 in the concentrated water circuit.

[0061] It should be noted that the concentrated water combination valve 12 has two modes: a low-flow mode, in which the concentrated water combination valve 12 is relatively open, such as half-open. When the water purifier is producing pure water, the concentrated water combination valve 12 is in this mode, used to discharge the concentrated water produced during the production of pure water. A high-flow mode, in which the concentrated water combination valve 12 is relatively open, such as fully open. When the user regularly cleans the water purifier, the concentrated water combination valve 12 is adjusted to this mode to discharge the wastewater generated during this period. Furthermore, the concentrated water combination valve 12 is normally open; when producing microbubble water, the drain valve 14 can be closed to avoid the discharge of concentrated water, thereby conserving water.

[0062] In addition, in the above embodiment, the water purifier further includes a control device electrically connected to the one-way high-pressure switch 11; the control device is also electrically connected to the booster pump 1, the concentrated water combination valve 12, the first water inlet valve 13, the third water inlet valve 6, and the drain valve 14. When the control device detects the water pressure via the one-way high-pressure switch 11 and determines that the pure water faucet is open, or when the pure water faucet includes an on / off button, the control device activates the booster pump 1, the first water inlet valve 13, and the drain valve 14, and closes the third water inlet valve 6, thereby activating the pure water circuit.

[0063] Specifically, when the pure water waterway is working, the one-way high-pressure switch 11 detects the water pressure in the waterway pipe where it is located. When the pure water faucet is turned on, the water pressure in the waterway pipe where it is located will be released, thereby triggering the one-way high-pressure switch 11 to generate a signal. The control device uses this to determine that the pure water faucet is open, or the control device receives the pure water faucet opening instruction through the switch button, and then turns on the various valves on the pure water waterway to produce pure water.

[0064] In an optional embodiment, the microbubble faucet includes a Hall switch or a switch button; the water purifier also includes a control device, which is electrically connected to the Hall switch, or the control device is electrically connected to the switch button; the control device is also electrically connected to the air pump 3, the booster pump 1, the concentrated water combination valve 12, the first water inlet valve 13, the third water inlet valve 6 and the drain valve 14 respectively; when the control device detects that the microbubble faucet is turned on through the Hall switch or receives a microbubble faucet opening instruction through the switch button, it starts the air pump 3, the booster pump 1, the concentrated water combination valve 12, the first water inlet valve 13 and the third water inlet valve 6, and closes the drain valve 14 to enable the microbubble water circuit to work.

[0065] When the microbubble water circuit is working, the Hall switch in the microbubble water faucet detects the rotation movement, generating a trigger signal and providing it to the control device. Alternatively, the control device receives a microbubble faucet opening instruction through the switch button, and then the control device determines that the microbubble faucet is open, and opens the various valves in the microbubble water circuit to produce microbubble water.

[0066] Continue to refer Figure 1 Optionally, the public waterway also includes a low-pressure switch 15, which is connected to the first water inlet of the composite filter element 9; the control device is electrically connected to the low-pressure switch 15, and when the control device detects that the water pressure is lower than a preset value through the low-pressure switch 15, it controls the booster pump 1 to stop working.

[0067] The preset value in this embodiment is 0.6 MPa, that is, when the low-pressure switch 15 detects that the water pressure is less than 0.6 MPa, the control device controls the booster pump 1 to stop working, and the water purifier does not produce micro-bubble water and pure water. When the water pressure is ≥0.1 MPa, the water purifier can produce micro-bubble water and pure water normally.

[0068] Continue to refer Figure 1 As shown, optionally, the concentrated water circuit further includes a second water inlet valve 16 , one end of the second water inlet valve 16 is connected to the pure water outlet of the RO filter element 2 , and the other end is connected to the pipeline between the first water inlet valve 13 and the drain valve 14 .

[0069] Specifically, the flushing liquid generated during the initial flushing of the RO filter element 2 is discharged to the concentrated water outlet through the second water inlet valve 16, thereby preventing contamination of the post-carbon filter element and ensuring that test indicators do not exceed the specified standards during subsequent immersion tests. In an alternative embodiment, since the initial flushing of the RO filter element 2 is only performed during initial installation, the second water inlet valve 16 can be configured as a manual valve.

[0070] Optionally, both the pure water faucet and the micro-bubble water faucet include a switch button and a solenoid valve, the switch button is used to receive a faucet opening instruction, and the solenoid valve is used to be turned on when the switch button receives the faucet opening instruction.

[0071] Specifically, solenoid valves can be installed on the outlet pipes of the pure water and microbubble water channels to control the flow of the respective water channels. When the switch button receives the instruction to open the pure water faucet, the solenoid valve controls the flow of the pure water channel. Similarly, when the switch button receives the instruction to open the microbubble water faucet, the solenoid valve controls the flow of the microbubble water channel.

[0072] Based on the above-mentioned water purifier water system, the working principle of the water purifier system is summarized as follows:

[0073] 1. When preparing pure water, after the machine is powered on, when the RO pure water tap is opened and the micro bubble tap is not opened, the one-way high-pressure switch 11 is energized to send a water production signal, or when the pure water tap is turned on by the switch button and the micro bubble tap is not opened, the raw water is pre-treated by the pre-filter element in the composite filter element 9 from the raw water inlet, reduced in pressure by the pressure reducing valve 10, and then pressurized and filtered by the booster pump 1 and the RO filter element 2 to prepare pure water. The remaining part of the produced pure water enters the post-carbon filter element in the composite filter element 9 through the pure water waterway, is treated, passes through the defoaming component 8, and is finally discharged from the RO pure water tap. The concentrated water produced when preparing pure water is discharged from the concentrated water waterway.

[0074] 2. When preparing microbubble water, after the machine is powered on, if the RO pure water tap is closed and the Hall switch microbubble tap is open, the Hall switch is energized and sends a microbubble water preparation signal. Alternatively, if the microbubble tap is opened by the on / off button and the pure water tap is closed, the booster pump 1, concentrated water combination valve 12, first water inlet valve 13, and third water inlet valve 6 are simultaneously opened, the drain valve 14 is closed, and the air pump 3 injects air into the water system through the one-way valve. Accordingly, raw water enters the raw water inlet (the first inlet), is pre-treated by the pre-filter within the composite filter element 9, and is reduced in pressure by the pressure reducing valve 10 before entering the booster pump 1 for boosting. After being filtered by the RO filter element, it passes through the air inlet pipe. Simultaneously, air is pumped into the air inlet pipe by the air pump. This air then enters the booster pump 1 and RO filter element 2, mixes with the air, and enters the remaining portion of the microbubble waterway. The air is then reduced in pressure by the bubbler 7 and released, and the microbubble water is discharged through the microbubble tap.

[0075] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations, and substitutions are possible for those skilled in the art without departing from the scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A water purifier, characterized in that: It includes a microbubble water channel, a pure water channel and a concentrated water channel. The microbubble water channel is used to produce microbubble water, the pure water channel is used to produce pure water, and the concentrated water channel is used to discharge concentrated water. The microbubble water channel and part of the pure water channel are shared to form a common water channel, and the common water channel includes a booster pump (1) and an RO filter element (2) connected in sequence; The water purifier further comprises an air intake assembly, the concentrated water circuit is connected to the water inlet pipe of the booster pump (1) in the public water circuit via an air intake pipe, and the air intake assembly is connected to the air intake pipe; The booster pump (1) is used to increase water pressure, and the RO filter element (2) is used to perform RO reverse osmosis filtration and gas-water mixing; Wherein, the public waterway further comprises a composite filter element (9), and the composite filter element (9) comprises a pre-filter element and a post-filter element; The composite filter element (9) further comprises a first water inlet, a first water outlet, a second water inlet and a second water outlet; The first water inlet is used to introduce raw water, and the raw water is purified by the pre-filter and discharged from the first water outlet, and then passes through the booster pump (1) and the RO filter element (2) to enter the remaining water path of the micro-bubble water water path. Alternatively, the raw water is purified by the pre-filter and discharged from the first water outlet, and then passes through the booster pump (1) and the RO filter element (2) to enter the remaining water path of the pure water water path, and then is purified by the post-filter through the second water inlet and discharged from the second water outlet. The pure water circuit further comprises a one-way high-pressure switch (11), wherein the one-way high-pressure switch (11) is connected between the pure water outlet of the RO filter element (2) and the second water inlet of the composite filter element (9); The concentrated water circuit comprises a concentrated water combination valve (12), a first water inlet valve (13) and a drain valve (14), wherein the concentrated water combination valve (12), the first water inlet valve (13) and the drain valve (14) are sequentially connected between the concentrated water outlet of the RO filter element (2) and the concentrated water outlet of the water purifier; The air intake pipe is connected to the pipe between the first water intake valve (13) and the drain valve (14) in the concentrated water circuit, and the air intake pipe is also used to mix the refluxed concentrated water with the intake air and water.

2. The water purifier according to claim 1, characterized in that: The air intake assembly comprises an air pump (3) and a first one-way valve (4), wherein the first one-way valve (4) is located on the air outlet pipeline of the air pump (3), and the conducting direction of the first one-way valve (4) is from the air pump (3) toward the public waterway.

3. The water purifier according to claim 2, characterized in that: A second one-way valve (5) and a third water inlet valve (6) are also provided on the air inlet pipeline. The third water inlet valve (6) and the second one-way valve (5) are arranged in sequence along the air inlet direction of the air inlet pipeline. The conduction direction of the second one-way valve (5) is from the concentrated water channel to the common water channel.

4. The water purifier according to claim 3, characterized in that: The micro-bubble water circuit further comprises a bubbler (7) and a micro-bubble water faucet, wherein the bubbler (7) is located on the water outlet pipe of the micro-bubble water circuit and is connected to the micro-bubble water faucet.

5. The water purifier according to claim 4, characterized in that: The pure water circuit further comprises a defoaming component (8) and a pure water faucet. The defoaming component (8) is located on the water outlet pipe of the pure water circuit and is connected to the pure water faucet.

6. The water purifier according to claim 1, characterized in that: The public waterway further comprises a pressure reducing valve (10), the pressure reducing valve (10) being connected between the first water outlet of the composite filter element (9) and the water inlet of the booster pump (1), and the air intake pipe being connected to the pipeline between the pressure reducing valve (10) and the booster pump (1).

7. The water purifier according to claim 1, characterized in that: The water purifier further comprises a control device, wherein the control device is electrically connected to the one-way high-voltage switch (11); The air inlet pipe is also provided with a third water inlet valve (6); the pure water circuit also includes a pure water tap; The control device is also electrically connected to the boost pump (1), the concentrated water combination valve (12), the first water inlet valve (13), the third water inlet valve (6), and the drain valve (14). When the control device detects the water pressure through the one-way high-pressure switch (11) and determines that the pure water faucet is turned on, or when the pure water faucet includes a switch button, the control device receives a pure water faucet opening instruction through the switch button, starts the booster pump (1), the first water inlet valve (13) and the drain valve (14), and closes the third water inlet valve (6) to enable the pure water waterway to operate.

8. The water purifier according to claim 1, characterized in that: The micro-bubble water channel also includes a micro-bubble faucet; the micro-bubble faucet includes a Hall switch or a switch button; The water purifier further includes a control device, wherein the control device is electrically connected to the Hall switch, or the control device is electrically connected to the switch button; The air intake pipe is further provided with a third water inlet valve (6); the air intake assembly includes an air pump (3); The control device is also electrically connected to the air pump (3), the booster pump (1), the concentrated water combination valve (12), the first water inlet valve (13), the third water inlet valve (6), and the drain valve (14). When the control device detects that the micro-bubble water faucet is turned on through the Hall switch or receives a micro-bubble water faucet turning-on instruction through the switch button, it starts the air pump (3), the booster pump (1), the concentrated water combination valve (12), the first water inlet valve (13) and the third water inlet valve (6), and closes the drain valve (14) to enable the micro-bubble water circuit to operate.

9. The water purifier according to claim 7 or 8, characterized in that: The public waterway also includes a low-pressure switch (15) connection, and the low-pressure switch (15) is connected to the first water inlet of the composite filter element (9); The control device is electrically connected to the low-pressure switch (15), and when the control device detects through the low-pressure switch (15) that the water pressure is less than a preset value, it controls the booster pump (1) to stop working.

10. The water purifier according to claim 1, characterized in that: The concentrated water circuit further comprises a second water inlet valve (16), one end of the second water inlet valve (16) being connected to the pure water outlet of the RO filter element (2), and the other end being connected to the pipeline between the first water inlet valve (13) and the drain valve (14).

11. The water purifier according to claim 5, characterized in that: The pure water faucet and the micro-bubble water faucet both include a switch button and a solenoid valve. The switch button is used to receive a faucet opening instruction, and the solenoid valve is used to be turned on when the switch button receives the faucet opening instruction.

12. The water purifier according to claim 5, characterized in that: The microbubble water faucet and the pure water faucet are integrated into the same double faucet, and a water outlet pipe is provided on the double faucet; when the microbubble water faucet is turned on, the water outlet pipe is used to discharge microbubble water, and when the pure water faucet is turned on, the water outlet pipe is used to discharge pure water.

13. The water purifier according to claim 1, characterized in that: The water pressure of the water pipe in the water purifier is in the range of 0.05-0.1mPa.

14. The water purifier according to claim 1, characterized in that: The ratio of the water inlet flow rate to the air inlet flow rate of the water purifier is in the range of 18:1 to 100:

1.

15. The water purifier according to claim 1, characterized in that: The flow rate of the booster pump (1) is 1-10 L / min.

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