Water purification device

Abstract

The utility model provides a water purifying device. The water purifying device comprises a water inlet pump, an activated carbon filter, a first core type filter, an ultrafiltration membrane, a manual valve, a nanofiltration booster pump, a nanofiltration membrane and a nanofiltration water producing electromagnetic valve, the water outlet end of the water inlet pump is connected with the water inlet end of the activated carbon filter, the activated carbon filter is connected with the water inlet end of the first core type filter, and the first core type filter is connected with the water inlet end of the ultrafiltration membrane; the ultrafiltration membrane is connected with the water inlet end of the nanofiltration booster pump, the nanofiltration booster pump is connected with the water inlet end of the nanofiltration membrane, and the first water outlet end of the nanofiltration membrane is connected with the water inlet end of the nanofiltration water production electromagnetic valve; a third water outlet end of the ultrafiltration membrane is connected with a water inlet end of the manual valve; the water outlet end of the nanofiltration water production electromagnetic valve is connected with the water outlet end of the manual valve, so that the mixed water enters the water purification tank. By adopting a filtering form that the ultrafiltration membrane is connected with the nanofiltration membrane in series, on the basis of ensuring the healthy water quality of the produced water, the ultra-filtered produced water is mixed with the nanofiltration produced water according to a certain proportion, so that the direct drinking water with better taste is obtained.

Description

Technical Field

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

[0002] Direct drinking water, also known as healthy living water, is mainly filtered using separation membrane devices to kill viruses and bacteria, filter out discoloration, odor, residual chlorine, ozone, hydrogen sulfide, bacteria, viruses, heavy metals in the water, block suspended particles to improve water quality, while retaining trace elements beneficial to the human body, and soften the water with ion exchangers. Finally, the water is energized and mineralized through the action of high-energy biochemical ceramics, meeting the standards for direct drinking healthy water announced by the World Health Organization.

[0003] The existing Chinese patent application document with announcement number CN215924572U discloses a direct drinking water device, including a municipal water inlet control valve, a raw water tank, a pretreatment module, an intermediate water tank, a membrane treatment module, a clean water tank and a booster water supply module which are connected in sequence, and a return water filtration module is also connected between the intermediate water tank and the clean water tank; the pretreatment module is suitable for pre-filtering the municipal water in the raw water tank and sending it into the intermediate water tank, the membrane treatment module is suitable for membrane filtering the water in the intermediate water tank and sending it into the clean water tank, and the booster water supply module is suitable for increasing the water outlet pressure of the clean water tank; the return water filtration module is connected to the return water port of the clean water supply pipe, and is suitable for filtering the stored water in the clean water supply pipe and circulating it.

[0004] The disadvantage of the existing technology is that it is impossible to obtain direct drinking water with better taste while ensuring the health of the produced water quality. Utility Model Content

[0005] In view of the defects in the prior art, the purpose of the utility model is to provide a water purification device.

[0006] The water purification device provided by the utility model includes: a water inlet pump, an activated carbon filter, a first core filter, an ultrafiltration membrane, a manual valve, a nanofiltration booster pump, a nanofiltration membrane, and a nanofiltration water production solenoid valve;

[0007] The water outlet end of the water inlet pump is connected to the water inlet end of the activated carbon filter, the water outlet end of the activated carbon filter is connected to the water inlet end of the first core filter, and the water outlet end of the first core filter is connected to the water inlet end of the ultrafiltration membrane;

[0008] The first water outlet end of the ultrafiltration membrane is connected to the water inlet end of the nanofiltration booster pump, the water outlet end of the nanofiltration booster pump is connected to the water inlet end of the nanofiltration membrane, and the first water outlet end of the nanofiltration membrane is connected to the water inlet end of the nanofiltration water production solenoid valve;

[0009] The third water outlet end of the ultrafiltration membrane is connected to the water inlet end of the manual valve;

[0010] The water outlet end of the nanofiltration water production solenoid valve is connected to the water outlet end of the manual valve, so that the mixed water enters the clean water tank.

[0011] Preferably, the second water outlet end of the nanofiltration membrane and the second water outlet end of the ultrafiltration membrane 4 are connected to a wastewater discharge pipeline.

[0012] Preferably, the water outlet end of the manual valve is also provided with an ultrafiltration water production flowmeter.

[0013] Preferably, the purified water in the clean water tank returns to the clean water tank through a circulation pipeline.

[0014] Preferably, the circulation pipeline includes a water pipeline and a return water pipeline.

[0015] Preferably, the water pipeline includes a clean water delivery pump, a discharge port detection instrument, and a pressure-stabilizing tank;

[0016] A discharge port detection instrument and a pressure stabilizing tank are installed between the clean water pump delivery pump and the customer water use end;

[0017] The purified water outlet in the purified water tank is connected to the inlet of the purified water delivery pump, and the purified water is delivered to the water use pipeline through the purified water delivery pump.

[0018] Preferably, after the purified water passes through the water use pipeline, a portion of it passes through the customer water use end, and the purified water not used by the customer water use end returns to the purified water tank through the return pipeline.

[0019] Preferably, the return water pipeline includes: a second core filter, an ozone dosing device, and an ultraviolet disinfector;

[0020] The outlet end of the second core filter is connected to the inlet end of the ultraviolet sterilizer, and the outlet end of the ultraviolet sterilizer is connected to the clean water tank;

[0021] An ozone dosing device is arranged between the second core filter and the ultraviolet sterilizer.

[0022] Preferably, the discharge port detection instrument is a pressure sensor.

[0023] Preferably, the clean water tank is additionally connected to an ozone destroyer.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] (1) The utility model adopts the filtering form of ultrafiltration membrane connected in series with nanofiltration membrane, and mixes the water produced by the ultrafiltration membrane with the water produced by the nanofiltration membrane in a certain proportion on the basis of fully ensuring the health of the produced water quality, so as to obtain direct drinking water with better taste.

[0026] (2) The utility model adjusts the mixing ratio of the water produced by the ultrafiltration membrane and the water produced by the nanofiltration membrane by setting a manual valve, without any additional complex external system structure, thereby achieving the purpose of easy operation and fewer failure points. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0028] Figure 1 It is a structural schematic diagram of the utility model.

[0029] The figure shows

[0030] Inlet pump 1 Nanofiltration booster pump 7 Outlet detection instrument 13

[0031] Activated carbon filter 2 Nanofiltration membrane 8 Pressure regulating tank 14

[0032] First core filter 3 Nanofiltration water production solenoid valve 9 Customer water end 15

[0033] Ultrafiltration membrane 4 Wastewater discharge pipeline 10 Second core filter 16

[0034] Manual valve 5 Clean water tank 11 Ozone dosing device 17

[0035] Ultrafiltration water production beyond flow meter 6 Clean water delivery pump 12 UV disinfector 18

[0036] Ozone Destroyer 19 DETAILED DESCRIPTION

[0037] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0038] According to the utility model, a water purification device with stable and adjustable water quality is provided; it comprises: a water inlet pump 1, an activated carbon filter 2, a first core filter 3, an ultrafiltration membrane 4, a manual valve 5, a nanofiltration booster pump 7, a nanofiltration membrane 8, and a nanofiltration water production electromagnetic valve 9; the water outlet end of the water inlet pump 1 is connected to the water inlet end of the activated carbon filter 2, the water outlet end of the activated carbon filter 2 is connected to the water inlet end of the first core filter 3, and the water outlet end of the first core filter 3 is connected to the water inlet end of the ultrafiltration membrane 4;

[0039] The first water outlet of the ultrafiltration membrane 4 is connected to the water inlet of the nanofiltration booster pump 7, the water outlet of the nanofiltration booster pump 7 is connected to the water inlet of the nanofiltration membrane 8, the first water outlet of the nanofiltration membrane 8 is connected to the water inlet of the nanofiltration water production solenoid valve 9, which is mainly used to adjust the ultrafiltration water production rate; the first water outlet of the nanofiltration membrane 8 is the concentrated liquid end, and the nanofiltration booster pump 7 pressurizes the water passing through the first water outlet of the ultrafiltration membrane 4 and then enters the nanofiltration membrane 8 for filtration. The third water outlet of the ultrafiltration membrane 4 is connected to the water inlet of the manual valve 5;

[0040] The water outlet end of the nanofiltration water solenoid valve 9 is connected to the water outlet end of the manual valve 5, so that the mixed water enters the clean water tank 11; the ultrafiltration water can be mixed with the nanofiltration water to achieve the series-parallel switching of the ultrafiltration water during operation, so as to ensure that the minerals required by the human body and the drinking taste in the water are improved while ensuring that the water quality meets the standards.

[0041] The second outlet end of the nanofiltration membrane 8 and the second outlet end of the ultrafiltration membrane 4 are connected to the wastewater discharge pipeline 10, thereby entering the ditch. Part of the concentrated liquid filtered by the nanofiltration membrane 8 is discharged to the ditch through the wastewater discharge pipeline 10;

[0042] Municipal tap water is supplied to the activated carbon filter 2 through the water inlet pump 1, wherein the activated carbon filter 2 has the functions of automatic forward flushing, backwashing, and automatic filtration, and can also filter out pigments, pesticides, impurities, etc. in the water; the first core filter 3 and the second core filter 16 mainly intercept suspended matter and large particles in the water to ensure that the water quality entering the membrane at the back end meets the standards.

[0043] The water inlet pump 1 provides the pressure and flow required for filtration for tap water entering the ultrafiltration membrane.

[0044] The outlet of the manual valve 5 is also provided with an ultrafiltration water flowmeter 6, which can observe the specific value of the ultrafiltration water directly discharged. The mixing ratio of ultrafiltration water and nanofiltration water is adjusted by the manual valve. The system structure is simple and easy to control, without other complex additional system structures, thus achieving the purpose of easy operation and few fault points.

[0045] The ultrafiltration membrane 4 can remove large particles of colloids and organic matter, and electrolytes remain. In order to ensure that the produced water meets the standard of pure water, the produced water needs to be filtered by the nanofiltration membrane 8. The nanofiltration membrane 8 can effectively remove high-valent ions in the water, especially hardness ions such as calcium and magnesium in the water. The produced water of nanofiltration is lacking in electrolytes and has a poor taste due to the low electrolyte content. Therefore, under the condition of meeting the water production standard, a part of the produced water of ultrafiltration is called back through the manual valve 5 and mixed with the produced water of nanofiltration, thereby ensuring the electrolytes required by the human body and a better taste.

[0046] The proportion of ultrafiltration water production callback can be controlled by 5 manual valves. In the initial debugging stage, there are 13 outlet detection instruments at the mixed water production end, including conductivity, NTO and other detection instruments, which can detect the water quality indicators of the mixed water production. The opening of manual valve 5 can be adjusted to make the mixed water production meet the standards. After the valve opening is adjusted, it remains basically unchanged during the operation stage, which is once and for all, stable and reliable.

[0047] The purified water in the clean water tank 11 passes through the circulation pipeline and then returns to the clean water tank 11; the circulation pipeline includes a water pipe and a return pipe; the clean water tank 11 is both the starting point and the end point, and the filtered clean water is intermittently circulated in the water pipe network. The purpose of the circulation is to prevent the clean water from breeding bacteria after being stationary for a long time, which affects the water quality;

[0048] The water pipeline includes a clean water delivery pump 12, a discharge port detection instrument 13, and a pressure regulating tank 14;

[0049] The pure water outlet in the clean water tank 11 is connected to the inlet of the clean water delivery pump 12, and the clean water is delivered to the water pipe by the clean water delivery pump 12. The clean water delivery pump 12 provides the user with clean water flow and water supply pressure.

[0050] After the purified water passes through the water pipe, a portion of it passes through the customer water end 15, and the unused purified water at the customer water end 15 returns to the purified water tank 11 through the return pipe;

[0051] A discharge port detection instrument 13 and a pressure stabilizing tank 14 are installed between the clean water pump delivery pump 12 and the customer water end 15;

[0052] Part of the water passing through the pressure stabilizing tank 14 enters the water-using cluster, and the remaining unused clean water returns to the clean water tank 11 through the return water pipeline, which includes: a core filter 16, an ozone dosing device 17, and an ultraviolet disinfector 18;

[0053] The unused purified water first passes through the second core filter 16, the outlet end of the second core filter 16 is connected to the inlet end of the ultraviolet sterilizer 18, and the outlet end of the ultraviolet sterilizer 18 is connected to the purified water tank 11; an ozone dosing device 17 is arranged between the second core filter 16 and the ultraviolet sterilizer 18,

[0054] In order to avoid water contamination due to bacteria in the pipelines through which unused purified water passes, an ultraviolet sterilizer 18 is used to sterilize and disinfect the drinking water in the circulation pipeline;

[0055] The clean water tank 11 is additionally connected to an ozone destroyer 19 , and the ozone destroyer 19 is used to eliminate the residual ozone in the clean water tank 11 .

[0056] The outlet detection instrument 13 may be a pressure sensor, which is used for the water pressure in the circulation pipeline. The pressure-stabilizing tank can make the water pressure in the circulation pipeline drop very slowly, thereby playing a role in maintaining pressure.

[0057] When the entire water purification device needs to be repaired and maintained, the water in the clean water tank 11 needs to be discharged into the ditch. When maintenance is not required, the switch valve is tightened to prevent the water in the clean water tank from being discharged into the ditch.

[0058] When the activated carbon filter 2 needs to be replaced, the water in the activated carbon filter 2 is discharged through the switch valve. When it does not need to be replaced, the switch valve is tightened to prevent the water in the clean water tank from being discharged into the ditch.

[0059] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0060] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A water purification device, characterized in that: include: A water inlet pump (1), an activated carbon filter (2), a first core filter (3), an ultrafiltration membrane (4), a manual valve (5), a nanofiltration booster pump (7), a nanofiltration membrane (8), and a nanofiltration water production solenoid valve (9); The water outlet end of the water inlet pump (1) is connected to the water inlet end of the activated carbon filter (2), the water outlet end of the activated carbon filter (2) is connected to the water inlet end of the first core filter (3), and the water outlet end of the first core filter (3) is connected to the water inlet end of the ultrafiltration membrane (4); The first water outlet end of the ultrafiltration membrane (4) is connected to the water inlet end of the nanofiltration booster pump (7), the water outlet end of the nanofiltration booster pump (7) is connected to the water inlet end of the nanofiltration membrane (8), and the first water outlet end of the nanofiltration membrane (8) is connected to the water inlet end of the nanofiltration water production solenoid valve (9); The third water outlet end of the ultrafiltration membrane (4) is connected to the water inlet end of the manual valve (5); The water outlet end of the nanofiltration water production solenoid valve (9) is connected to the water outlet end of the manual valve (5), so that the mixed water enters the clean water tank (11).

2. The water purification device according to claim 1, characterized in that: The second water outlet end of the nanofiltration membrane (8) and the second water outlet end of the ultrafiltration membrane (4) are connected to a wastewater discharge pipeline (10).

3. The water purification device according to claim 1, characterized in that: The water outlet end of the manual valve (5) is also provided with an ultrafiltration water production flowmeter (6).

4. The water purification device according to claim 1, characterized in that: The purified water in the clean water tank (11) returns to the clean water tank (11) through the circulation pipeline.

5. The water purification device according to claim 4, characterized in that: The circulation pipeline includes a water pipeline and a return water pipeline.

6. The water purification device according to claim 5, characterized in that: The water pipeline comprises a clean water delivery pump (12), a discharge port detection instrument (13), and a pressure stabilizing tank (14); A discharge port detection instrument (13) and a pressure stabilizing tank (14) are installed between the clean water delivery pump (12) and the customer water use end (15); The purified water outlet in the purified water tank (11) is connected to the inlet of the purified water delivery pump (12), and the purified water is delivered to the water pipeline via the purified water delivery pump (12).

7. The water purification device according to claim 5, characterized in that: After the purified water passes through the water pipe, a portion of it passes through the customer water end (15), and the unused purified water at the customer water end (15) returns to the purified water tank (11) through the return pipe.

8. The water purification device according to claim 5, characterized in that: The return water pipeline comprises: a second core filter (16), an ozone dosing device (17), and an ultraviolet disinfector (18); The outlet end of the second core filter (16) is connected to the inlet end of the ultraviolet sterilizer (18), and the outlet end of the ultraviolet sterilizer (18) is connected to the clean water tank (11); An ozone dosing device (17) is arranged between the second core filter (16) and the ultraviolet sterilizer (18).

9. The water purification device according to claim 6, characterized in that: The discharge port detection instrument (13) is a pressure sensor.

10. The water purification device according to claim 1, characterized in that: The clean water tank (11) is additionally connected to an ozone destroyer (19).

Images