Water purification equipment

Abstract

The utility model relates to water purification equipment, which comprises a water purification pipeline, a water outlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe and a water outlet pipe, the water purifier is characterized in that the water outlet nozzle is provided with a filter membrane, the pore diameter of the filter membrane is smaller than or equal to a preset pore diameter d0, and the filter membrane can filter and sterilize purified water flowing out of the water outlet. The water purifier has the advantages that the aperture of the filter membrane is smaller than or equal to the preset aperture d0, so that purified water flowing out of the water outlet can be filtered and sterilized through the filter membrane. Therefore, the filter membrane sterilization mode is not influenced by the water flow rate, the sterilization effect can be ensured, and the filter membrane is arranged on the water outlet nozzle, so that the water quality of water flowing out of the water outlet nozzle can meet the requirement, and the water use safety of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drinking water equipment, in particular to a water purification device. Background Art

[0002] As a commonly used water treatment device, water purification equipment mainly filters raw water in sequence according to each level of filter elements. However, since the pollutants intercepted in the existing water purification equipment have always been present at the front end or in the filter elements of each level, the humid environment provides good conditions for the growth of bacteria in the water purification equipment. Therefore, most of the water purification equipment on the market will often have the problem of serious excessive total colony count in the effluent water.

[0003] To solve this problem, it is currently common to install fixed-power ultraviolet lamps in water purification equipment. However, since the water purifier has not been used for a long time, the bacteria in the pipes will increase sharply, and the fixed-power ultraviolet lamps may not be able to meet the sterilization effect. For this reason, a Chinese utility model patent with patent number ZL202320818388.0 (authorization announcement number CN220098639U) discloses a sterilization faucet assembly, a water purification liquid path system and a water maker. The sterilization faucet assembly includes: a faucet body; a flow-through sterilizer, which is arranged in the faucet body and is used to emit ultraviolet rays; a display screen, which is arranged on the faucet body and electrically connected to the flow-through sterilizer, and the display screen is used to display the working status of the flow-through sterilizer.

[0004] Although the sterilizing faucet assembly can sterilize the water about to flow out of the faucet body again through ultraviolet rays by the over-flow sterilizer to ensure the safety of the drinking water flowing out of the faucet body, the above-mentioned sterilizing faucet assembly has the following limitations: the sterilizing effect of the over-flow sterilizer will be affected by the water flow rate, and when the water flow rate changes, the sterilizing effect will be unsatisfactory. Therefore, further improvements are needed to the existing technology. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a water purification device capable of ensuring that the sterilization effect is not affected by the water flow rate in view of the above-mentioned prior art.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a water purification device, comprising:

[0007] A water purification pipeline having a water outlet and a faucet arranged at the water outlet, wherein the faucet has a water outlet nozzle;

[0008] It is characterized in that: the water outlet has a filter membrane, and the filter membrane is configured so that: the pore size of the filter membrane is less than or equal to the preset pore size d0, and can filter and sterilize the clean water flowing out of the water outlet.

[0009] In order to facilitate replacement, the filter membrane is connected to the water outlet in a detachable manner.

[0010] In order to improve the interception effect of bacteria, the preset aperture d0 has a value range of 0.1 μm<d0<0.3 μm.

[0011] In order to prevent the filter membrane from affecting the water flow rate of the water outlet, the water purification pipeline is further provided with a first booster pump, which is arranged adjacent to the water outlet. In this arrangement, the first booster pump can be used to increase the pressure, thereby ensuring that the water flow rate of the water outlet can meet the requirements.

[0012] In order to further improve the disinfection and sterilization effect of the water purification equipment, the water purification pipeline has a water inlet, and the water purification pipeline also includes a filter component and a sterilization device arranged downstream of the filter component. The filter component and the sterilization device are both located between the water inlet and the water outlet on the water purification pipeline.

[0013] Preferably, the sterilization device is an ultraviolet lamp.

[0014] More preferably, the sterilization device is a flow-through sterilization device.

[0015] In the above scheme, the filtration assembly includes a pre-filter, a reverse osmosis membrane filter and a post-filter arranged in sequence along the flow path of the clean water pipeline. The clean water pipeline is also provided with a second booster pump located between the pre-filter and the reverse osmosis membrane filter.

[0016] In order to achieve a good sterilization effect, the water purification equipment also includes a flow meter for detecting the upstream flow of the sterilization device and a controller electrically connected to the flow meter. The sterilization device is connected to a power module, and the power module is electrically connected to the controller. The controller is configured to adjust the power supply of the sterilization device accordingly according to the detection results of the flow meter.

[0017] In order to further achieve a good sterilization effect, the water purification equipment also includes a detection unit for detecting the time when the faucet is turned on or off. The detection unit is electrically connected to the controller, and the controller is also configured to adjust the power supply of the sterilization device or remind to replace the filter membrane according to the detection results of the detection unit.

[0018] Compared with the prior art, the utility model has the advantages that: the pore size of the filter membrane is smaller than or equal to the preset pore size d0, so that the purified water flowing out of the water outlet can be filtered and sterilized through the filter membrane. Therefore, the sterilization method of the filter membrane is not affected by the water flow rate, and the sterilization effect can be guaranteed. Moreover, since the filter membrane is arranged at the water outlet, the water quality of the water flowing out of the water outlet can meet the requirements, thereby improving the water safety of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a water circuit diagram of the water purification equipment in the embodiment of the utility model;

[0020] Figure 2 This is a control block diagram of the water purification equipment in the embodiment of the utility model. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] like Figure 1 and Figure 2 As shown, the water purification device in this embodiment includes a water purification pipeline 1, a filter assembly, a sterilizing device 5 and a faucet 2. The water purification pipeline 1 has a water inlet 1a and a water outlet 1b. The filter assembly and the sterilizing device 5 are both arranged between the water inlet 1a and the water outlet 1b of the water purification pipeline 1, and the sterilizing device 5 is located downstream of the filter assembly. The faucet 2 is arranged at the water outlet 1b, and the faucet 2 has a water outlet 21. The sterilizing device 5 in this embodiment is a flow-through sterilizing device 5, and is an ultraviolet lamp.

[0023] The water outlet 21 has a filter membrane 211, and the filter membrane 211 is configured as follows: the pore size of the filter membrane 211 is less than or equal to the preset pore size d0, and can filter and sterilize the clean water flowing out of the water outlet 1b. In this embodiment, the filter membrane 211 is connected to the water outlet 21 in a detachable manner. The detachable connection method is a snap connection or other connection method that is easy to disassemble. It is a prior art and will not be elaborated here. Since current research has found that the minimum bacterial diameter is about 0.2μm, the value range of the preset pore size d0 in this embodiment is 0.1μm<d0<0.3μm. In addition, a first booster pump 3 is also provided on the clean water pipeline 1. The first booster pump 3 is arranged near the water outlet 1b. Through the pressurization of the first booster pump 3, it is ensured that the water outlet flow rate of the water outlet 21 is not affected by the filter membrane 211.

[0024] like Figure 1As shown, the filter assembly in this embodiment includes a pre-filter element 41, a reverse osmosis membrane filter element 42 and a post-filter element 43 arranged in sequence along the flow path of the clean water pipeline 1, and a second booster pump 7 located between the pre-filter element 41 and the reverse osmosis membrane filter element 42 is also provided on the clean water pipeline 1. The filter assembly is a structure that all water purification equipment in the prior art has. The wastewater end of the reverse osmosis membrane filter element 42 is also connected to a first wastewater pipe 11b, and the first wastewater pipe 11b is also connected to a reflux pipe 11a. The outlet of the reflux pipe 11a is connected between the pre-filter element 41 and the second booster pump 7 on the clean water pipeline 1. A reflux valve 111 is provided on the reflux pipe 11a, and the reverse flushing of the reverse osmosis membrane filter element 42 is achieved by opening the reflux valve 111. In addition, a second wastewater pipe 11c is also connected between the first booster pump 3 and the faucet 2 on the clean water pipeline 1, and the outlet of the second wastewater pipe 11c is connected to the first wastewater pipe 11b. The first wastewater pipe 11b and the second wastewater pipe 11c are also provided with wastewater valves and one-way valves respectively, and each wastewater valve is used to control the corresponding wastewater pipe for drainage.

[0025] like Figure 2 As shown, the water purification device also includes a flow meter 6 for detecting the upstream flow of the sterilization device 5, a detection unit 10 for detecting the opening or stopping time of the faucet 2, and a controller 8. The sterilization device 5 is connected to a power module 9. The controller 8 is electrically connected to the flow meter 6, the power module 9 and the detection unit 10 respectively. The controller 8 is configured to: adjust the power supply of the sterilization device 5 according to the detection result of the flow meter, and can adjust the power supply of the sterilization device 5 according to the detection result of the detection unit 10 or remind to replace the filter membrane 211. The controller 8 in this embodiment is also connected to a reminder unit 11, which can be an alarm that can emit an alarm sound, an indicator light that can emit an indication signal, or an alarm unit that can combine an alarm sound and an indication signal, so as to remind the user to replace the filter membrane 211 through the reminder unit 11. The above-mentioned detection unit 10 can be a timer or a time relay.

[0026] The control logic of the water purification equipment in this embodiment is:

[0027] Since the water pressure of the tap water entering from the water inlet 1a will fluctuate, which will cause the water flow rate to change, the power of the ultraviolet lamp is adjusted according to the water flow rate in this embodiment. According to laboratory data, when the flow rate is greater than aL / min, the power of the ultraviolet lamp must meet b watts to achieve the sterilization effect; when the flow rate is less than a L / min, the power of the ultraviolet lamp must meet c watts to achieve the effect. Therefore, different powers corresponding to different water flow rates can achieve a good sterilization effect and energy saving. The above a, b and c are constants determined according to experiments.

[0028] In addition, if the water purification equipment is not used for a long time, bacteria will grow in large numbers in the water purification equipment. The detection unit 10 detects the start time or stop time of the water purification equipment. If the stop time is ≥ d hours, the power of the ultraviolet lamp is adjusted to e watts; if the stop time is < d hours, the power of the ultraviolet lamp is adjusted to c watts to achieve a sterilization effect; and if the start time of the water purification equipment is > f hours, the user is reminded to replace the filter membrane 211. The above d, e and f are constants determined according to experiments.

Claims

1. A water purification device, comprising: A water purification pipeline (1) having a water outlet (1b) and a faucet (2) arranged at the water outlet (1b), wherein the faucet (2) has a water outlet nozzle (21); The feature is that the water outlet (21) has a filter membrane (211), and the filter membrane (211) is configured such that the pore size of the filter membrane (211) is less than or equal to a preset pore size d0, and can filter and sterilize the clean water flowing out of the water outlet (1b).

2. The water purification device according to claim 1, characterized in that: The filter membrane (211) is connected to the water outlet nozzle (21) in a detachable manner.

3. The water purification device according to claim 1, characterized in that: The value range of the preset aperture d0 is 0.1 μm<d0<0.3 μm.

4. The water purification device according to claim 1, characterized in that: The clean water pipeline (1) is also provided with a first booster pump (3), and the first booster pump (3) is arranged adjacent to the water outlet (1b).

5. The water purification device according to claim 1, characterized in that: The water purification pipeline (1) has a water inlet (1a), and the water purification pipeline (1) also includes a filter component and a sterilization device (5) arranged downstream of the filter component. The filter component and the sterilization device (5) are both located between the water inlet (1a) and the water outlet (1b) on the water purification pipeline (1).

6. The water purification device according to claim 5, characterized in that: The sterilization device (5) is an ultraviolet lamp.

7. The water purification device according to claim 6, characterized in that: The sterilization device (5) is a flow-through sterilization device (5).

8. The water purification device according to claim 5, characterized in that: The filter assembly comprises a pre-filter element (41), a reverse osmosis membrane filter element (42) and a post-filter element (43) which are sequentially arranged along the flow path of the clean water pipeline (1); the clean water pipeline (1) is also provided with a second booster pump (7) located between the pre-filter element (41) and the reverse osmosis membrane filter element (42).

9. The water purification device according to any one of claims 5 to 8, characterized in that: The water purification device also includes a flow meter (6) for detecting the upstream flow of the sterilization device (5) and a controller (8) electrically connected to the flow meter (6); the sterilization device (5) is connected to a power module (9), and the power module (9) is electrically connected to the controller (8); the controller (8) is configured to adjust the power supply of the sterilization device (5) according to the detection result of the flow meter (6).

10. The water purification device according to claim 9, characterized in that: The water purification device also includes a detection unit (10) for detecting the time when the faucet (2) is turned on or off. The detection unit (10) is electrically connected to the controller (8). The controller (8) is also configured to adjust the power supply of the sterilization device (5) or remind the user to replace the filter membrane (211) according to the detection result of the detection unit (10).

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