Water purification system and water purifier

Abstract

The utility model relates to the technical field of water purification treatment, and discloses a water purification system and a water purifier. Wherein the water purification system comprises a pressure reducing valve, a booster pump and a microbubble water assembly which are sequentially arranged on the first pipeline in the water flow direction, the microbubble water assembly comprises a flow regulating valve and a flow meter, and the flow meter is located on the downstream of the flow regulating valve and is in signal connection with the flow regulating valve. The water purification system further comprises an air inlet pump and a gas flow meter which are sequentially arranged on a second pipeline in the airflow direction, and the second pipeline is communicated between the pressure reducing valve and the booster pump of the first pipeline. The pressure reducing valve is an electric pressure reducing valve which is in signal connection with the gas flow meter; and / or the gas inlet pump is a variable-frequency gas inlet pump, and the variable-frequency gas inlet pump is in signal connection with the gas flow meter. According to the water purification system, the water flow of the microbubble water can be stable, and meanwhile, large fluctuation of the water-air ratio is avoided, so that the water-air ratio of the microbubble water during working is always in an optimal range.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, and in particular to a water purification system and a water purifier. Background Technology

[0002] Microbubble water has excellent cleaning properties and is widely used in water purifiers for domestic water use. The three essential elements for achieving microbubble water are gas, water, and pressure. Current technologies mainly employ two methods to achieve the microbubble water effect: active air intake with an air pump and passive air intake with a booster pump using a flow-limiting valve. Active air intake with an air pump can better control the air intake volume, ensuring a continuous and stable microbubble water effect. However, active air intake with an air pump is greatly affected by tap water pressure. Fluctuations in tap water pressure affect the air intake volume of the air pump, leading to large fluctuations in the water-to-air ratio, often resulting in problems such as excessive airflow or weak bubbles in the microbubble water.

[0003] Therefore, there is an urgent need for a water purification system and water purifier to solve the above problems. Utility Model Content

[0004] One objective of this invention is to provide a water purification system that can achieve stable water flow of microbubble water while avoiding large fluctuations in the water-to-air ratio, ensuring that the water-to-air ratio remains within the optimal range during microbubble water operation.

[0005] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0006] A water purification system is provided, comprising a pressure reducing valve, a booster pump, and a microbubble water assembly arranged sequentially along a first pipeline in the direction of water flow. The microbubble water assembly includes a flow regulating valve and a flow meter, wherein the flow meter is located downstream of the flow regulating valve and is signal-connected to the flow regulating valve.

[0007] The water purification system also includes an air intake pump and a gas flow meter arranged sequentially on the second pipeline along the airflow direction, and the second pipeline is connected between the pressure reducing valve and the booster pump of the first pipeline;

[0008] The pressure reducing valve is an electric pressure reducing valve, which is signal-connected to the gas flow meter; and / or, the air intake pump is a variable frequency air intake pump, which is signal-connected to the gas flow meter.

[0009] Optionally, the microbubble water assembly further includes a mixing tank, which is located downstream of the flow regulating valve and is used to mix the gas and liquid entering the mixing tank.

[0010] Optionally, the microbubble water assembly further includes a bubbler located downstream of the mixing tank, the bubbler being used to thoroughly mix the passing gas and liquid.

[0011] Optionally, a check valve is also provided on the second pipeline, the check valve being located downstream of the gas flow meter.

[0012] Optionally, a water inlet valve is also provided on the first pipeline, and the water inlet valve is located upstream of the pressure reducing valve.

[0013] Optionally, a pretreatment filter element is also provided on the first pipeline, and the pretreatment filter element is located upstream of the inlet valve.

[0014] Optionally, the water purification system further includes a membrane filter element, which has an inlet, a pure water outlet, and a concentrated water outlet. The inlet is connected to the downstream of the booster pump via a third pipeline. After the raw water is filtered by the membrane filter element, it is divided into pure water and concentrated water. The pure water is discharged through the pure water outlet, and the concentrated water is discharged through the concentrated water outlet.

[0015] Optionally, the pure water outlet is connected to the pure water port of the water purifier via a fourth pipeline, and a detection switch is installed on the fourth pipeline.

[0016] Optionally, the water-to-air ratio of the microbubble water ranges from 20 to 100.

[0017] Another objective of this invention is to provide a water purifier that can achieve a stable water flow rate for microbubble water while avoiding large fluctuations in the water-to-air ratio, ensuring that the water-to-air ratio remains within the optimal range during microbubble water operation.

[0018] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0019] A water purifier is provided, including a water purifier housing and the aforementioned water purification system, wherein the water purification system is disposed within the water purifier housing.

[0020] The beneficial effects of this utility model are as follows:

[0021] The water purification system proposed in this utility model includes a pressure reducing valve, a booster pump, and a microbubble water assembly sequentially arranged along the water flow direction on a first pipeline. The microbubble water assembly includes a flow regulating valve and a flow meter, with the flow meter located downstream of the flow regulating valve and signal-connected to it. The water purification system also includes an air intake pump and a gas flow meter sequentially arranged along the airflow direction on a second pipeline, which connects to the pressure reducing valve and booster pump in the first pipeline. The air intake pump introduces gas into the first pipeline through the second pipeline, and the gas and liquid are fully mixed within the microbubble water assembly to form microbubble water. In this water purification system, the flow meter is used to detect the flow rate of the microbubble water provided by the microbubble water assembly. The signal connection between the flow meter and the flow regulating valve allows for adjustment of the flow regulating valve's opening based on the difference between the detected microbubble water flow rate and the preset target microbubble water flow rate. The flow regulating valve is located downstream of the booster pump, meaning that the flow rate of the liquid flowing through the flow regulating valve will not change significantly with the fluctuation of the downstream pressure of the pressure reducing valve. This makes the flow rate of the liquid entering the microbubble water component relatively stable, thus ensuring a relatively stable flow rate of the microbubble water.

[0022] Furthermore, this water collection system offers three methods for adjusting the real-time gas flow rate Q1: First, the pressure reducing valve is set to an electric pressure reducing valve, connected to the gas flow meter signal; second, the intake pump is set to a variable frequency intake pump, connected to the gas flow meter signal; third, both the pressure reducing valve and the intake pump are connected to the gas flow meter signal. When the real-time gas flow rate Q1 detected by the gas flow meter is not equal to the target gas flow rate Q, the gas flow meter feeds back a signal to the electric pressure reducing valve and / or the variable frequency intake pump to adjust the downstream pressure of the electric pressure reducing valve and / or the power of the variable frequency intake pump, thereby making the real-time gas flow rate Q1 equal to the target gas flow rate Q, thus obtaining the actual water-to-gas ratio P = L1 / Q1 and P∈M. This water purification system can achieve stable water flow rate for microbubble water while avoiding large fluctuations in the water-to-gas ratio, ensuring that the water-to-gas ratio remains within the optimal range during microbubble water operation.

[0023] The water purifier proposed in this utility model includes a water purifier housing and the aforementioned water purification system, which is disposed within the water purifier housing. The water purification system of this water purifier has a flow regulating valve installed downstream of the booster pump, ensuring a stable flow rate of microbubble water even when the booster pump's operating pressure fluctuates. Furthermore, an electric pressure reducing valve and a gas flow meter signal connection are provided, and / or a variable frequency air pump and a gas flow meter signal connection are provided. The target air intake is obtained by pre-setting an optimal water-to-air ratio and a target water intake volume. The real-time air intake volume is then adjusted based on the difference between the target air intake volume and the real-time air intake volume, thereby ensuring that the water-to-air ratio of the water purification system is always within the optimal range, achieving stable preparation of microbubble water. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the water purification system provided in this embodiment of the utility model;

[0025] Figure 2 This is a control principle diagram of the water purification system provided in this embodiment of the utility model.

[0026] In the picture:

[0027] 101. Pretreatment filter element; 102. Inlet valve; 103. Pressure reducing valve; 104. Booster pump; 105. Air pump; 106. Gas flow meter; 107. Check valve; 108. Flow regulating valve; 109. Mixing tank; 110. Flow meter; 111. Aerator; 112. Membrane filter element; 113. Detection switch; 114. Wastewater valve;

[0028] 201. First pipeline; 202. Second pipeline; 203. Third pipeline; 204. Fourth pipeline; 205. Fifth pipeline;

[0029] 301. Microbubble inlet; 302. Pure water inlet. Detailed Implementation

[0030] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1 As shown, this embodiment provides a water purification system, including a pressure reducing valve 103, a booster pump 104, and a microbubble water assembly sequentially arranged along the water flow direction on a first pipeline 201. The microbubble water assembly includes a flow regulating valve 108 and a flow meter 110, with the flow meter 110 located downstream of the flow regulating valve 108 and signal-connected to it. The water purification system also includes an air intake pump 105 and a gas flow meter 106 sequentially arranged along the airflow direction on a second pipeline 202, which connects to the pressure reducing valve 103 and the booster pump 104 in the first pipeline 201. In specific implementation, the air intake pump 105 introduces gas into the first pipeline 201 through the second pipeline 202, and the gas and liquid are fully mixed in the microbubble water assembly to form microbubble water. The flow meter 110 is used to detect the flow rate of microbubble water provided by the microbubble water assembly. The flow meter 110 is signal-connected to the flow regulating valve 108, allowing the flow regulating valve 108 to adjust its opening based on the difference between the detected microbubble water flow rate and the preset target microbubble water flow rate. In this embodiment, the flow regulating valve 108 is downstream of the booster pump 104, meaning the flow rate of the liquid flowing through the flow regulating valve 108 will not change significantly with fluctuations in the downstream pressure of the pressure reducing valve 103. This makes the flow rate of the liquid entering the microbubble water assembly relatively stable, thus ensuring a relatively stable flow rate of the microbubble water.

[0036] In practical implementation, the optimal water-to-air ratio M and the target microbubble water flow rate L of the water purification system are preset at the factory. The water-to-air ratio = microbubble water flow rate / gas flow rate. Therefore, when the user selects the preset target microbubble water flow rate L, the target gas flow rate Q can be confirmed. The air pump 105 draws gas through the gas flow meter 106 on the second pipeline 202 into the first pipeline 201 downstream of the pressure reducing valve 103. If the real-time gas flow rate Q1 detected by the gas flow meter 106 does not match the target gas flow rate Q, the real-time gas flow rate Q1 needs to be adjusted.

[0037] Optionally, the water-to-air ratio ranges from 20 to 100. That is, microbubble water can be generated when the water-to-air ratio is within this range. The closer the water-to-air ratio is to the median value, the smaller the fluctuation and the more stable the effect of microbubble water. The optimal water-to-air ratio M of the water purification system can be set as a range value according to this principle.

[0038] The water purification system provided in this embodiment offers three methods for adjusting the real-time gas flow rate Q1. One method involves setting the pressure reducing valve 103 as an electrically operated pressure reducing valve, and connecting the electrically operated pressure reducing valve to the gas flow meter 106 via a signal connection. For example... Figure 2 As shown, a gas flow meter 106 detects the real-time gas flow rate Q1. When the real-time gas flow rate Q1 detected by the gas flow meter 106 is less than the target gas flow rate Q, the gas flow meter 106 sends a pressure reduction signal to the electric pressure reducing valve, causing the opening of the electric pressure reducing valve to decrease. This reduces the downstream pressure of the electric pressure reducing valve, thereby increasing the real-time gas flow rate Q1 drawn by the air pump 105 to the gas flow meter 106 until it reaches the target gas flow rate Q, i.e., until the actual water-to-gas ratio P = L1 / Q1 and P ∈ M. Conversely, when the real-time gas flow rate Q1 detected by the gas flow meter 106 is greater than the target gas flow rate Q, the gas flow meter 106 sends a pressure increase signal to the electric pressure reducing valve, causing the opening of the electric pressure reducing valve to increase. This increases the downstream pressure of the electric pressure reducing valve, thereby decreasing the real-time gas flow rate Q1 drawn by the air pump 105 to the gas flow meter 106 until it reaches the target gas flow rate Q, i.e., until the actual water-to-gas ratio P = L1 / Q1 and P ∈ M.

[0039] Secondly, the intake pump 105 is configured as a variable frequency intake pump, which is connected to the gas flow meter 106 via a signal connection. When the real-time gas flow rate Q1 detected by the gas flow meter 106 is less than the target gas flow rate Q, the gas flow meter 106 sends a positive signal to the variable frequency intake pump to increase its power, thereby increasing the real-time gas flow rate Q1 drawn to the gas flow meter 106 until it reaches the target gas flow rate Q, i.e., until the actual water-to-gas ratio P = L1 / Q1 and P ∈ M. Conversely, when the real-time gas flow rate Q1 detected by the gas flow meter 106 is greater than the target gas flow rate Q, the gas flow meter 106 sends a negative signal to the variable frequency intake pump to decrease its power, thereby decreasing the real-time gas flow rate Q1 drawn to the gas flow meter 106 until it reaches the target gas flow rate Q, i.e., until the actual water-to-gas ratio P = L1 / Q1 and P ∈ M.

[0040] Thirdly, the pressure reducing valve 103 is set to be an electric pressure reducing valve, and the air intake pump 105 is a variable frequency air intake pump. Both the electric pressure reducing valve and the variable frequency air intake pump are connected to the gas flow meter 106 via signal connection. When the real-time gas flow rate Q1 detected by the gas flow meter 106 is less than the target gas flow rate Q, the gas flow meter 106 feeds back a positive signal to the variable frequency air intake pump and / or feeds back a pressure reducing signal to the electric pressure reducing valve, so that the real-time gas flow rate Q1 increases until it reaches the target gas flow rate Q. Conversely, when the real-time gas flow rate Q1 detected by the gas flow meter 106 is greater than the target gas flow rate Q, the gas flow meter 106 feeds back a negative signal to the variable frequency air intake pump and / or feeds back a pressure increasing signal to the electric pressure reducing valve, so that the real-time gas flow rate Q1 decreases until it reaches the target gas flow rate Q.

[0041] Optionally, the microbubble water assembly also includes a mixing tank 109, which is located downstream of the flow regulating valve 108. The gas and liquid are mixed in the second pipeline 202 and both enter the mixing tank 109 after passing through the booster pump 104 and the flow regulating valve 108. They are further mixed in the mixing tank 109, and the pressurized gas and liquid in the mixing tank 109 are mixed to form microbubble water.

[0042] Optionally, the microbubble water assembly also includes an aerator 111, located downstream of the mixing tank 109. The aerator 111 is used to fully mix the flowing gas and liquid to create a foaming effect. In practice, the aerator 111 is typically installed on a faucet, placing it at the end of the microbubble water assembly, with the flow meter 110 located between the mixing tank 109 and the aerator 111.

[0043] Furthermore, a check valve 107 is also installed on the second pipeline 202, which is located downstream of the gas flow meter 106. The check valve 107 is used to prevent the liquid in the first pipeline 201 from flowing back to the air pump 105, thus ensuring the performance of the air pump 105.

[0044] Optionally, an inlet valve 102 is also installed on the first pipeline 201, located upstream of the pressure reducing valve 103. The inlet valve 102 is an on / off valve. When the inlet valve 102 is open, raw water can enter the first pipeline 201 and then flow through the pressure reducing valve 103, the booster pump 104, etc. in sequence. When the inlet valve 102 is closed, raw water cannot enter the first pipeline 201, and the entire water purification system is in a closed state.

[0045] Optionally, a pretreatment filter element 101 is also installed on the first pipeline 201, located upstream of the inlet valve 102. The pretreatment filter element 101 can filter the raw water entering the first pipeline 201, mainly to remove large suspended particles such as silt from the raw water, so as to prevent impurities in the raw water from entering components such as the inlet valve 102 and the pressure reducing valve 103, thus avoiding damage to the components of the water purification system and effectively extending the service life of the entire water purification system.

[0046] Furthermore, the water purification system also includes a membrane filter element 112, which has an inlet, a pure water outlet, and a concentrated water outlet. The inlet is connected to the downstream of the booster pump 104 via a third pipeline 203. That is, the pretreated raw water is divided into two paths after passing through the pressure reducing valve 103 and the booster pump 104. One path continues along the first pipeline 201 to the microbubble water assembly, while the other path is diverted to the third pipeline 203 and flows to the membrane filter element 112. The membrane filter element 112 is used to further filter the pretreated raw water. After passing through the membrane filter element 112, the raw water is divided into pure water and concentrated water. The pure water is discharged through the pure water outlet and can be used as drinking water by the user, while the concentrated water is discharged through the concentrated water outlet and can be directly discharged from the water purification system as wastewater.

[0047] Optionally, the water purification system also includes a fourth pipe 204, one end of which is connected to the pure water outlet, and the other end is connected to the pure water inlet 302 of the water purifier. A detection switch 113 is installed on the fourth pipe 204. The detection switch 113 can be specifically configured as different switches according to different needs, such as a high-pressure switch, a low-pressure switch, or a Hall effect switch. The high-pressure switch is used to prevent equipment damage or safety accidents caused by excessive pressure. The low-pressure switch is used to ensure sufficient water supply and prevent the control pumps from running dry and being damaged. The Hall effect switch is used to measure the water flow rate to track the filter cartridge usage and predict replacement time.

[0048] Optionally, the water purification system also includes a fifth pipe 205, on which a wastewater valve 114 is installed. One end of the fifth pipe 205 is connected to a concentrated water outlet to discharge concentrated water from the water purification system.

[0049] This embodiment also provides a water purifier, including a water purifier housing and the aforementioned water purification system, with the water purification system disposed within the water purifier housing. The water purification system of this water purifier has a flow regulating valve 108 downstream of the booster pump 104, ensuring that the flow rate of microbubble water remains stable even if the working pressure of the booster pump 104 fluctuates. Furthermore, an electric pressure reducing valve and a gas flow meter 106 are connected via signal connection, and / or a variable frequency air pump and a gas flow meter 106 are connected via signal connection. The target air intake is obtained by pre-setting an optimal water-to-air ratio and a target water intake volume, and the real-time air intake volume is adjusted based on the difference between the target air intake volume and the real-time air intake volume, thereby ensuring that the water-to-air ratio of the water purification system is always within the optimal range, achieving stable preparation of microbubble water.

[0050] Optionally, the water purifier has a microbubble inlet 301 and a pure water inlet 302. One end of the first pipe 201 is connected to the raw water and the other end is connected to the microbubble inlet 301. One end of the fourth pipe 204 is connected to the pure water outlet of the membrane filter 112 and the other end is connected to the pure water inlet 302.

[0051] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water purification system, characterized by, The system includes a pressure reducing valve (103), a booster pump (104), and a microbubble water assembly, which are sequentially arranged on the first pipeline (201) along the water flow direction. The microbubble water assembly includes a flow regulating valve (108) and a flow meter (110). The flow meter (110) is located downstream of the flow regulating valve (108) and is signal-connected to the flow regulating valve (108). The water purification system also includes an air intake pump (105) and a gas flow meter (106) arranged sequentially on the second pipeline (202) along the airflow direction. The second pipeline (202) is connected between the pressure reducing valve (103) and the booster pump (104) of the first pipeline (201). The pressure reducing valve (103) is an electric pressure reducing valve, which is signal-connected to the gas flow meter (106); and / or, the air intake pump (105) is a variable frequency air intake pump, which is signal-connected to the gas flow meter (106).

2. The water purification system of claim 1, wherein The microbubble water assembly also includes a mixing tank (109), which is located downstream of the flow regulating valve (108) and is used to mix the gas and liquid entering the mixing tank (109).

3. The water purification system of claim 2, wherein, The microbubble water assembly also includes a bubbler (111) located downstream of the mixing tank (109), the bubbler (111) being used to fully mix the passing gas and liquid.

4. The water purification system of claim 1, wherein, A check valve (107) is also provided on the second pipeline (202), and the check valve (107) is located downstream of the gas flow meter (106).

5. The water purification system of claim 1, wherein, The first pipeline (201) is also equipped with an inlet valve (102), which is located upstream of the pressure reducing valve (103).

6. The water purification system of claim 5, wherein, The first pipeline (201) is also provided with a pretreatment filter element (101), which is located upstream of the water inlet valve (102).

7. The water purification system of claim 1, wherein The water purification system also includes a membrane filter element (112), which has an inlet, a pure water outlet and a concentrated water outlet. The inlet is connected to the downstream of the booster pump (104) through a third pipeline (203). After the raw water is filtered by the membrane filter element (112), it is divided into pure water and concentrated water. The pure water is discharged through the pure water outlet and the concentrated water is discharged through the concentrated water outlet.

8. The water purification system of claim 7, wherein, The pure water outlet is connected to the pure water port (302) of the water purifier through the fourth pipe (204), and a detection switch (113) is installed on the fourth pipe (204).

9. The water purification system of claim 1, wherein, The water-to-air ratio of microbubble water ranges from 20 to 100.

10. A water purifier characterized by It includes a water purifier housing and a water purification system as described in any one of claims 1 to 9, wherein the water purification system is disposed within the water purifier housing.

Images