Zero-emission energy-saving design water purification system

Abstract

The utility model provides a zero-discharge energy-saving design pure water system. The zero-discharge energy-saving design pure water system comprises a water inlet tee joint, a first-stage filter, a second-stage filter, a third-stage filter, a conductivity detector, a reverse osmosis membrane, an adjustable wastewater valve, a first four-side valve, a wastewater storage tank, a purified water storage tank and a terminal water valve, the first-stage filter, the second-stage filter and the third-stage filter are sequentially connected in series; a water inlet of the reverse osmosis membrane is connected with a water outlet of the third-stage filter, a purified water outlet of the reverse osmosis membrane is divided into two branches, one branch is connected with a purified water storage tank, the other branch is connected with a purified water terminal valve of a terminal water valve, a wastewater outlet of the reverse osmosis membrane is divided into two branches, one branch is connected with a wastewater storage tank through a first four-side valve, and the other branch is connected with a wastewater storage tank through a second four-side valve. The conductivity detector is provided with detection points at the water outlet of the third-stage filter and the purified water outlet of the reverse osmosis membrane, and the adjustable wastewater valve is mounted between the wastewater outlet of the reverse osmosis membrane and the first four-side valve.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, in particular to a pure water system with zero-emission and energy-saving design. Background Art

[0002] Most of the reverse osmosis pure water machines on the market are equipped with a wastewater ratio. The ratio of clean water to wastewater is about 1:3 to 1:5, which is fixed and cannot be adjusted. In addition, the failure rate of the wastewater ratio is high, and wastewater is often discharged continuously. If the wastewater is directly discharged into the sewer through the water pipe, this failure is not easy to find. In today's water shortage, this equipment waste phenomenon is extremely serious.

[0003] The first three filter elements of most reverse osmosis pure water machines are: 5-micron PP cotton, granular activated carbon, and 1-micron PP cotton, with a lifespan of 3 months, 6 months, and 3 months respectively. They have low filtration accuracy, short lifespan, and poor filtration effect, which greatly reduces the lifespan of subsequent reverse osmosis membranes. In order to avoid clogging of the reverse osmosis membrane, most equipment uses a timed flushing mode, which wastes a lot of water resources during flushing. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the embodiment of the utility model provides a zero-emission energy-saving pure water system, comprising a water inlet tee (1), a first-stage filter (2), a second-stage filter (3), a third-stage filter (4), a conductivity detector (6), a reverse osmosis membrane (8), an adjustable wastewater valve (11), a first four-sided valve (12), a wastewater storage tank (13), a clean water storage tank (14) and a terminal water valve (10);

[0005] The first-stage filter (2), the second-stage filter (3), and the third-stage filter (4) are connected in series in sequence;

[0006] The reverse osmosis membrane (8) is provided with a water inlet, a clean water outlet and a waste water outlet. The water inlet of the reverse osmosis membrane (8) is connected to the water outlet of the third-stage filter (4). The clean water outlet of the reverse osmosis membrane (8) is divided into two branches, one of which is connected to a clean water storage tank (14) and the other is connected to a clean water terminal valve (17) of a terminal water valve (10). The waste water outlet of the reverse osmosis membrane (8) is divided into two branches, one of which is connected to a waste water storage tank (13) via a first four-sided valve (12) and the other is connected to a waste water terminal valve (18) of the terminal water valve (10);

[0007] The conductivity detector (6) is provided with detection points at the water outlet of the third-stage filter (4) and the clean water outlet of the reverse osmosis membrane (8); the adjustable wastewater valve (11) is installed between the wastewater outlet of the reverse osmosis membrane (8) and the first four-sided valve (12) to adjust the wastewater flow rate according to the value measured by the conductivity detector (6); the adjustable wastewater valve (11) can adjust the ratio of clean water to wastewater between 1:1 and 1:0;

[0008] The first four-sided valve (12) is provided with two water inlets and two water outlets, the two water inlets are respectively connected to the wastewater outlet of the reverse osmosis membrane (8) and the wastewater storage tank (13), and the two water outlets are respectively connected to the wastewater storage tank (13) and the water inlet of the reverse osmosis membrane (8).

[0009] Optionally, it also includes a second four-sided valve (7), wherein the second four-sided valve (7) is provided with two water inlets and two water outlets, the two water inlets are respectively connected to the water outlet of the third-stage filter (4) and the clean water outlet of the reverse osmosis membrane (8), one water outlet is connected to the water inlet of the reverse osmosis membrane (8), and the other water outlet is connected to the clean water storage tank (14) and the clean water terminal valve (17) of the terminal water valve (10).

[0010] Optionally, it also includes a fifth-stage filter (5), which is arranged between the water purification terminal valve (17) of the terminal water valve (10) and the second four-sided valve (7).

[0011] Optionally, the reverse osmosis membrane (8) is a low-pressure reverse osmosis membrane.

[0012] Optionally, a clean water tank valve (16) is installed at the water inlet end of the clean water storage tank (14).

[0013] Optionally, a wastewater tank valve (15) is installed at the water inlet end of the wastewater storage tank (13).

[0014] Optionally, both water outlets of the first four-sided valve (12) are provided with water circuit control switches.

[0015] Optionally, a water circuit control switch is provided between the purified water outlet of the reverse osmosis membrane (8) and the second four-sided valve (7).

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. Use conductivity detector to test water quality to adjust the adjustable wastewater valve and adjust the ratio of clean water and wastewater, which can reduce the working intensity of reverse osmosis membrane while ensuring water quality, thus extending the service life of reverse osmosis membrane and increasing the output of clean water.

[0018] 2. The wastewater in the wastewater storage tank can be used to flush the reverse osmosis membrane to flush out the impurities in the membrane, thereby extending the service life of the reverse osmosis membrane.

[0019] 3. The wastewater in the wastewater storage tank enters the reverse osmosis membrane for secondary water production, which increases the output of clean water and reduces the generation of wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following describes the implementation of the zero-emission energy-saving pure water system of the utility model with reference to the accompanying drawings.

[0021] Figure 1 The utility model provides a schematic structural diagram of a zero-emission energy-saving pure water system.

[0022] Description of the drawings: 1. Water inlet tee; 2. First-stage filter; 3. Second-stage filter; 4. Third-stage filter; 5. Fifth-stage filter; 6. Conductivity detector; 7. Second four-way valve; 8. Reverse osmosis membrane; 9. Waterway control switch; 10. Terminal water valve; 11. Adjustable wastewater valve; 12. First four-way valve; 13. Wastewater storage tank; 14. Clean water storage tank; 15. Wastewater tank valve; 16. Clean water tank valve; 17. Clean water terminal valve; 18. Wastewater terminal valve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention, they are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, if the descriptions of "first", "second", etc. are involved in the present utility model, they are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0026] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments:

[0027] See also Figure 1 The embodiment of the utility model provides a zero-emission energy-saving pure water system, including a water inlet tee 1, a first-stage filter 2, a second-stage filter 3, a third-stage filter 4, a conductivity detector 6, a reverse osmosis membrane 8, an adjustable wastewater valve 11, a first four-sided valve 12, a wastewater storage tank 13, a clean water storage tank 14 and a terminal water valve 10;

[0028] The first-stage filter 2, the second-stage filter 3, and the third-stage filter 4 are connected in series in sequence;

[0029] The reverse osmosis membrane 8 is provided with a water inlet, a clean water outlet and a waste water outlet. The water inlet of the reverse osmosis membrane 8 is connected to the water outlet of the third-stage filter 4. The water filtered by the first three-stage filters passes through the reverse osmosis membrane 8 to produce clean water and waste water. The clean water outlet of the reverse osmosis membrane 8 is divided into two branches, one branch is connected to the clean water storage tank 14, and the other branch is connected to the clean water terminal valve 17 of the terminal water valve 10. The clean water terminal valve 17 of the terminal water valve 10 can be used to open the clean water terminal valve 17 of the terminal water valve 10.

[0030] The conductivity detector 6 is provided with detection points at the water outlet of the third-stage filter 4 and the clean water outlet of the reverse osmosis membrane 8. The adjustable wastewater valve 11 is installed between the wastewater outlet of the reverse osmosis membrane 8 and the first four-sided valve 12 to adjust the wastewater flow according to the value measured by the conductivity detector 6. The adjustable wastewater valve 11 can adjust the ratio of clean water to wastewater between 1:1 and 1:0. The conductivity detector 6 detects the clean water quality produced by the reverse osmosis membrane 8. When the water quality detection value is too large, the adjustable wastewater valve 11 is automatically adjusted to the maximum to avoid clogging of the reverse osmosis membrane 8 due to excessive impurities, thereby extending the service life of the membrane. When the water quality detection value is small, the adjustable wastewater valve 11 is automatically adjusted to the minimum to increase the clean water output;

[0031] The wastewater outlet of the reverse osmosis membrane 8 is divided into two branches, one of which is connected to the wastewater storage tank 13 through the first four-sided valve 12, and the other is connected to the wastewater terminal valve 18 of the terminal water valve 10. The first four-sided valve 12 is provided with two water inlets and two water outlets, the two water inlets are respectively connected to the wastewater outlet of the reverse osmosis membrane 8 and the wastewater storage tank 13, and the two water outlets are respectively connected to the wastewater storage tank 13 and the water inlet of the reverse osmosis membrane 8. There is a certain pressure in the wastewater storage tank 13, and the wastewater can be pressed out from the wastewater storage tank 13 and re-enter the reverse osmosis membrane 8 through the first four-sided valve 12 to further produce clean water, thereby increasing the clean water output. At the same time, when the wastewater terminal valve 18 of the terminal water valve 10 is opened, the wastewater generated after passing through the reverse osmosis membrane 8 does not pass through the adjustable wastewater valve 11 during the outflow process, and can flush the reverse osmosis membrane 8 to flush out the impurities in the membrane, thereby extending the service life of the reverse osmosis membrane 8;

[0032] The utility model also includes a second four-sided valve 7, which is provided with two water inlets and two water outlets. The two water inlets are respectively connected to the water outlet of the third-stage filter 4 and the purified water outlet of the reverse osmosis membrane 8, one water outlet is connected to the water inlet of the reverse osmosis membrane 8, and the other water outlet is connected to the purified water storage tank 14 and the purified water terminal valve 17 of the terminal water valve 10.

[0033] It also includes a fifth-stage filter 5, which is arranged between the purified water terminal valve 17 of the terminal water valve 10 and the second four-sided valve 7 to further filter the purified water.

[0034] The reverse osmosis membrane 8 adopts a low-pressure reverse osmosis membrane, which can achieve high water production by using tap water pressure without using a booster pump to increase pressure, thereby reducing energy consumption.

[0035] In addition, a clean water tank valve 16 is installed at the water inlet end of the clean water storage tank 14, a waste water tank valve 15 is installed at the water inlet end of the waste water storage tank 13, both water outlets of the first four-sided valve 12 are provided with a water circuit control switch 9, and a water circuit control switch 9 is provided between the clean water outlet of the reverse osmosis membrane 8 and the second four-sided valve 7.

[0036] The embodiments of the present invention have been described so far in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A zero-emission energy-saving pure water system, characterized in that: It comprises a water inlet tee (1), a first-stage filter (2), a second-stage filter (3), a third-stage filter (4), a conductivity detector (6), a reverse osmosis membrane (8), an adjustable wastewater valve (11), a first four-sided valve (12), a wastewater storage tank (13), a clean water storage tank (14) and a terminal water valve (10); The first-stage filter (2), the second-stage filter (3), and the third-stage filter (4) are connected in series in sequence; The reverse osmosis membrane (8) is provided with a water inlet, a clean water outlet and a waste water outlet. The water inlet of the reverse osmosis membrane (8) is connected to the water outlet of the third-stage filter (4). The clean water outlet of the reverse osmosis membrane (8) is divided into two branches, one of which is connected to a clean water storage tank (14) and the other is connected to a clean water terminal valve (17) of a terminal water valve (10). The waste water outlet of the reverse osmosis membrane (8) is divided into two branches, one of which is connected to a waste water storage tank (13) via a first four-sided valve (12) and the other is connected to a waste water terminal valve (18) of the terminal water valve (10); The conductivity detector (6) is provided with detection points at the water outlet of the third-stage filter (4) and the clean water outlet of the reverse osmosis membrane (8); the adjustable wastewater valve (11) is installed between the wastewater outlet of the reverse osmosis membrane (8) and the first four-sided valve (12) to adjust the wastewater flow rate according to the value measured by the conductivity detector (6); the adjustable wastewater valve (11) can adjust the ratio of clean water to wastewater between 1:1 and 1:0; The first four-sided valve (12) is provided with two water inlets and two water outlets, the two water inlets are respectively connected to the wastewater outlet of the reverse osmosis membrane (8) and the wastewater storage tank (13), and the two water outlets are respectively connected to the wastewater storage tank (13) and the water inlet of the reverse osmosis membrane (8).

2. The zero-emission energy-saving pure water system according to claim 1 is characterized in that: It also includes a second four-sided valve (7), wherein the second four-sided valve (7) is provided with two water inlets and two water outlets, wherein the two water inlets are respectively connected to the water outlet of the third-stage filter (4) and the purified water outlet of the reverse osmosis membrane (8), one water outlet is connected to the water inlet of the reverse osmosis membrane (8), and the other water outlet is connected to the purified water storage tank (14) and the purified water terminal valve (17) of the terminal water valve (10).

3. The zero-emission energy-saving pure water system according to claim 2 is characterized in that: It also includes a fifth-stage filter (5) which is arranged between the water purification terminal valve (17) of the terminal water valve (10) and the second four-sided valve (7).

4. The zero-emission energy-saving pure water system according to claim 1 is characterized in that: The reverse osmosis membrane (8) is a low-pressure reverse osmosis membrane.

5. The zero-emission energy-saving pure water system according to claim 1 is characterized in that: A clean water tank valve (16) is installed at the water inlet end of the clean water storage tank (14).

6. The zero-emission energy-saving pure water system according to claim 1 is characterized in that: A wastewater tank valve (15) is installed at the water inlet end of the wastewater storage tank (13).

7. The zero-emission energy-saving pure water system according to claim 1 is characterized in that: Both water outlets of the first four-sided valve (12) are provided with water circuit control switches.

8. The zero-emission energy-saving pure water system according to claim 2 is characterized in that: A water circuit control switch is provided between the purified water outlet of the reverse osmosis membrane (8) and the second four-sided valve (7).

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