CN110950447A

CN110950447A - System and method for maintaining water quality

Info

Publication number: CN110950447A
Application number: CN201910249508.8A
Authority: CN
Inventors: 刘果; 刘小菡
Original assignee: Suqian Hanshu Environmental Protection Equipment Co ltd
Current assignee: Suqian Hanshu Environmental Protection Equipment Co ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-04-03
Also published as: WO2020199918A1

Abstract

The application provides a system and a method for maintaining the quality of produced water. The system comprises: an integrated assembly, comprising: the integrated filter element, the first water inlet, the pure water output assembly and the first concentrated water inlet; the first concentrated water port is connected with one end of the concentrated water regulating valve; the pure water output assembly comprises a first pure water port; the other end of the concentrated water regulating valve is connected with the controlled end of the four-side valve; the first switch assembly is respectively connected with the first pure water port and the control end of the four-side valve; the four-surface valve is used for opening the four-surface valve by the aid of the liquid pressure difference of the controlled end to the control end when the first switch assembly is opened, and discharging the concentrated water outwards; when the first switch assembly is closed, the pure water flowing into the control end closes the four-side valve by means of the liquid pressure difference of the control end to the controlled end, and the concentrated water is stopped being discharged outwards. A system for maintaining water quality in a system is provided.

Description

System and method for maintaining water quality

Technical Field

The present application relates to the field of water purification, and in particular to systems and methods for maintaining water quality.

Background

Adopt ultra-low pressure reverse osmosis membrane and rely on the water purification system that running water pressure drove, can realize electroless drive, and directly purify the running water into straight drinking water. Has wide application prospect for the household water purification market.

However, the pressure of tap water in each household is very different, and particularly in an environment with low tap water pressure, the water yield of the water purification system is insufficient and the purified water quality is not qualified. Similarly, after the water purification system works for a long time, the concentrated water separated from the concentrated water end is not discharged in time, and some concentrated water can be attached to and deposited on the membrane, so that the TDS value of the water quality purified and recovered by the water purification system is higher and higher, and the water quality becomes bitter and astringent, so that the purified water quality is finally unqualified. The user is often not aware of the situation, and particularly the user cannot actively and manually adjust the concentrated water adjusting valve to flush the system.

In addition, the ultra-low pressure reverse osmosis membrane and the ultra-low pressure nanofiltration membrane are more obviously influenced by the head cup of water, after the water purification system stops running, concentrated water retained in the membrane shell and purified water at the other end of the membrane are mutually permeated through pressure, so that the quality of direct drinking water at the purified water end approaches to that of the concentrated water along with the increase of time, and the purified water retained in the membrane shell is changed into unqualified drinking water. How to avoid the frequent start of the water purification system, the generation of the head cup water is also inhibited, and the stability of the purified and recovered water quality is ensured!

How to inhibit the generation of head cup water, stabilize the purified water quality for a long time and realize micro-discharge is the time when a non-electric water purifier benefits thousands of households; therefore, the technical barriers mentioned above are overcome, and the related devices and solutions are very urgent!

Disclosure of Invention

The present application provides a system and method for maintaining the quality of produced water; so as to solve the problem of complicated operation in the water making process.

In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:

the application provides a system for keeping system water quality, its characterized in that includes:

an integrated assembly, comprising: the integrated filter element, the first water inlet, the pure water output assembly and the first concentrated water inlet;

the first concentrated water port is connected with one end of the concentrated water regulating valve and used for outputting concentrated water generated by the integrated filter element;

the pure water output assembly comprises a first pure water port and is used for outputting the pure water generated by the integrated filter element;

the other end of the concentrated water regulating valve is connected with the controlled end of the four-side valve and is used for keeping the preset discharge ratio of the pure water concentrated water;

the first switch assembly is respectively connected with the first pure water port and the control end of the four-side valve;

the four-surface valve is used for opening the four-surface valve by the aid of the liquid pressure difference of the controlled end to the control end when the first switch assembly is opened, and discharging the concentrated water outwards; when the first switch assembly is closed, the pure water flowing into the control end closes the four-side valve by means of the liquid pressure difference of the control end to the controlled end, and the concentrated water is stopped being discharged outwards.

Preferably, the system further comprises a flushing assembly;

the flushing assembly is connected with the first thick water port and used for flushing the integrated filter element when the flushing assembly is opened.

Preferably, the flushing assembly comprises a second switch connected with the first concentrate port.

Preferably, the flushing component comprises a first one-way valve with an input end connected with the first concentrate inlet and a second switch connected with an output end of the first one-way valve.

Preferably, the system further comprises a pressure reducing valve connected to the first water inlet.

Preferably, the pure water output assembly further comprises a second check valve, and an output end of the second check valve is connected with the first pure water port.

Preferably, the integrated filter element comprises a front filter element piece and a filter membrane piece;

preferably, the front filter element comprises a layered combination structure of: a PP cotton layer and an activated carbon rod layer, or a PP cotton layer and a mixture layer of activated carbon and resin, or a PP cotton layer, a mixture layer of activated carbon and resin and a PP cotton layer, or a PP cotton layer and an activated carbon fiber layer.

Preferably, the membrane filter includes: an ultra-low pressure reverse osmosis membrane or an ultra-low pressure nanofiltration membrane.

Preferably, the first switch assembly comprises a self-locking liquid level valve and/or a water cut-off valve which are arranged in the water storage tank;

the self-locking liquid level valve is used for controlling whether to input pure water into the water storage tank or not according to whether the pure water liquid level in the water storage tank reaches a preset height or not;

the water cut-off valve is used for manually controlling whether water is taken in the water storage tank in a pure mode.

Preferably, the self-locking liquid level valve comprises a first valve body and a floating ball arranged in the pure water tank, and the self-locking liquid level valve is used for controlling the first valve body to close through the floating ball according to the buoyancy of the pure water in the water storage tank to the floating ball, so that the pure water stops flowing through the first valve body.

Preferably, the self-locking liquid level valve further comprises a forcing button for manually opening the first valve body to enable the pure water to flow through the first valve body.

Preferably, the water cut-off valve is arranged in an upper cover of the water storage tank and used for closing the water cut-off valve when the upper cover is opened; when the upper cover is closed, the water cut-off valve is opened.

The present application provides a method of maintaining the quality of produced water, said method comprising a system for maintaining the quality of produced water as described above;

opening the first switch assembly to enable water to be treated to flow into the integrated assembly through the first water inlet;

the water to be treated passes through the integrated filter element to generate pure water and concentrated water;

the pure water is output outwards through the first pure water port and the first switch component;

and the concentrated water flows into the controlled end through the concentrated water regulating valve, and the four-surface valve is opened by depending on the liquid pressure difference of the controlled end to the control end, so that the concentrated water is discharged outwards.

Further, the method further comprises:

closing the first switch assembly to enable the water to be treated to flow into the integrated assembly through the first water inlet;

the water to be treated passes through the integrated filter element to generate the pure water and the concentrated water;

and the pure water flows into the control end through the first pure water port, the four-side valve is closed by means of the liquid pressure difference of the control end to the controlled end, and the concentrated water is stopped being discharged outwards.

Further, the method further comprises:

and opening the second switch to enable the water to be treated to flow into the integrated assembly through the first water inlet and be discharged outwards through the first concentrated water inlet and the second switch.

Based on the disclosure of the above embodiments, it can be known that the embodiments of the present application have the following beneficial effects:

the application provides a system and a method for maintaining the quality of produced water. The system comprises: an integrated assembly, comprising: the integrated filter element, the first water inlet, the pure water output assembly and the first concentrated water inlet;

The present application provides a system that reduces user involvement and maintains system water quality. Usually, when the water purification system is installed, the discharge ratio of the pure water and the concentrated water of the concentrated water regulating valve is preset according to the local water quality condition. Then, the impurities in the integrated assembly are passively cleaned, the method for reducing the concentration of the impurities reduces direct intervention of a user on a water purification system, and the water purification system is indirectly intervened through daily life, so that the aim of keeping the quality of the produced water is fulfilled.

The water purification system can be flushed in time during daily work, flushing is achieved without wasting water resources, and zero flushing emission is really achieved. The water purification system solves the complex operation that the water purification system driven by no electricity needs to open the concentrated water regulating valve periodically for flushing, so that the water quality can be kept stable for a long time without user intervention, and the industrial technical problem of first cup of water caused by adopting the osmotic membrane equipment is effectively inhibited. Meanwhile, the filter sediment is prevented from precipitating, so that the filth blockage is avoided, and the economic loss is brought.

Drawings

Fig. 1 is a schematic structural diagram of a system for maintaining quality of produced water according to an embodiment of the present disclosure;

FIG. 2 is a flow chart of a method for maintaining quality of produced water according to an embodiment of the present disclosure;

fig. 3 is a flowchart of a method for maintaining quality of produced water according to an embodiment of the present disclosure.

Description of the reference numerals

1-an integrated component, 2-a concentrated water regulating valve, 3-a four-sided valve, 4-a first switch, 5-a second switch, 6-a pressure reducing valve, 7-a first one-way valve, 8-a second one-way valve and 9-a water storage tank;

11-a front filter element piece and 12-a filter membrane piece;

41-self-locking liquid level valve, 42-water cut-off valve;

411-first valve body, 412-floating ball;

421-Upper cover.

Detailed Description

Specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, but the present application is not limited thereto.

It will be understood that various modifications may be made to the embodiments disclosed herein. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the application.

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with a general description of the application given above and the detailed description of the embodiments given below, serve to explain the principles of the application.

These and other characteristics of the present application will become apparent from the following description of preferred forms of embodiment, given as non-limiting examples, with reference to the attached drawings.

It should also be understood that, although the present application has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of application, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely examples of the application, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the application of unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present application in virtually any appropriately detailed structure.

The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the application.

The present application provides a flush valve for cleaning an ultra low pressure reverse osmosis membrane; the application also provides the pure water system. Details are described in the following examples one by one.

The first embodiment provided herein is an embodiment of a flush valve for cleaning an ultra low pressure reverse osmosis membrane.

The present embodiment is described in detail with reference to fig. 1, wherein fig. 1 is a schematic structural diagram of a system for maintaining quality of produced water according to the embodiment of the present application.

The embodiment provides a system for keeping quality of produced water, including:

integrated assembly 1, comprising: integrated filter core, first water inlet, pure water output assembly and first dense mouth of a river.

The integrated filter element is used for filtering the water to be treated input into the first water inlet to generate pure water (direct drinking water) and concentrated water which can be directly drunk.

The integrated filter element comprises a front filter element part 11 and a filter membrane part 12.

Leading filter element 11 mainly is used for getting rid of the harmful substance such as silt, rust, colloid, the heterochrosis peculiar smell of absorption aquatic, organic matter in treating the aquatic to reach the effect of having settled in advance.

The front filter element 11 and the membrane element 12 may be integrated or may be separate. In order to ensure a large flux, it is preferable that the pre-filter element 11 is sleeved on the periphery of the membrane element 12, so as to ensure a large flux of the water to be treated.

The front filter element 11 comprises a layered combination structure of: a PP cotton layer and an activated carbon rod layer, or a PP cotton layer and a mixture layer of activated carbon and resin, or a PP cotton layer, a mixture layer of activated carbon and resin and a PP cotton layer, or a PP cotton layer and an activated carbon fiber layer.

The membrane filter 12 includes: an ultra-low pressure reverse osmosis membrane or an ultra-low pressure nanofiltration membrane.

The first concentrated water port is connected with one end of the concentrated water regulating valve 2 and used for outputting concentrated water generated by the integrated filter element.

The pure water output assembly comprises a first pure water port and is used for outputting the pure water generated by the integrated filter element.

And the other end of the concentrated water regulating valve 2 is connected with the controlled end of the four-sided valve 3 and is used for keeping the preset discharge ratio of the pure water concentrated water.

And the concentrated water regulating valve 2 is used for regulating the discharge ratio of the pure concentrated water to different water qualities. The water saving is ensured while the water quality and the water production efficiency are ensured.

Generally, in a water purification system, as the system is used for a long time, a large amount of impurities are accumulated in the integrated module 1, gradually decreasing the efficiency of water purification. Generally, the discharge ratio of the pure water concentrate of the concentrate adjusting valve 2 is adjusted periodically by a large method. So as to achieve the purpose of ensuring the quality of the produced water. This method causes a lot of trouble to the user.

The embodiment provides a system for maintaining the water quality of the system, which reduces the participation of users. Usually, when the water purification system is installed, the discharge ratio of the pure water and the concentrated water of the concentrated water control valve 2 is preset according to the local water quality conditions. Then, direct intervention of a user on the water purification system is reduced by cleaning the integrated component 1 and reducing the impurity concentration, and the water purification system is indirectly intervened by daily life, so that the purpose of keeping the quality of the produced water is achieved.

The first switch 4 assembly is respectively connected with the first pure water port and the control end of the four-sided valve 3.

And the four-surface valve 3 is used for opening the first switch 4 assembly, and the concentrated water flowing into the controlled end opens the four-surface valve 3 by means of the liquid pressure difference of the controlled end to the control end, so that the concentrated water is discharged outwards.

Due to the fact that the first switch 4 assembly is opened, the pure water flows out through the first switch 4 assembly, the control end of the four-surface valve 3 is in a micro-pressure state, the concentrated water opens the piston in the four-surface valve 3 through pressure difference, and the concentrated water is discharged outwards. For example, the concentrated water is drained into a floor drain.

And the four-surface valve 3 is used for closing the four-surface valve 3 by means of the liquid pressure difference of the control end to the controlled end when the first switch 4 assembly is closed, and stopping discharging the concentrated water outwards.

Due to the fact that the first switch 4 assembly is closed, the pure water flows to the control end of the four-surface valve 3 through the first switch 4 assembly, the control end of the four-surface valve 3 is in a high-pressure state, the piston in the four-surface valve 3 is closed through pressure difference, and the controlled end stops discharging the concentrated water outwards. The influence of the interception pressure on the quality of the produced water is avoided.

The system also includes a flushing assembly.

In order to achieve a flushing function of the integrated assembly 1. Preferably, the flushing assembly comprises a second switch 5 connected with the first concentrate port.

For example, the second switch 5 is arranged at the cold water end of a tap water in a kitchen, and when the tap water is turned on when people need to wash fruits and vegetables, the integrated assembly 1 can be flushed; the tap water is pretreated and filtered by the integrated component 1, so that the use is safer; meanwhile, the filth blockage phenomenon of the tap is avoided.

Preferably, the flushing assembly comprises a first check valve 7 with an input end connected with the first concentrate inlet and a second switch 5 connected with an output end of the first check valve 7.

For example, continuing the above example, in order to avoid the hot water pipe of the tap water from flowing back to this branch, the first check valve 7 is arranged between the first concentrate port and the tap water, so as to avoid some special situations, such as the problem of hot water flowing back; in order to ensure a large flux for the tap water, the water purification system may use a 3-point joint and a connecting pipe, wherein the first water inlet and the first concentrate inlet of the integrated assembly 1 both use joints of larger dimensions.

In the embodiment, the water purification system is timely flushed when people work daily, the flushing is realized without wasting water resources, and the zero discharge of flushing is really realized. The water purification system solves the complex operation that the water purification system driven by no electricity needs to open the concentrated water regulating valve periodically for flushing, so that the water quality can be kept stable for a long time without user intervention, and the industrial technical problem of first cup of water caused by adopting the osmotic membrane equipment is effectively inhibited. Meanwhile, the filter sediment is prevented from precipitating, so that the filth blockage is avoided, and the economic loss is brought. In order to reduce the impact of the water hammer on the water purification system, it is preferred that the system further comprises a pressure reducing valve 6 connected to the first water inlet.

The pressure reducing valve 6 is added to the water purification system to suppress the impact of the water hammer on the water purification system. The part that often receives water hammer impact in water purification system includes: a filter shell, various water path joints and the like.

In order to avoid a decrease in water pressure, a reverse flow is generated. Preferably, the pure water output assembly further comprises a second check valve 8, and an output end of the second check valve 8 is connected with the first pure water port.

Through consider membrane piece 12 output take water in pure tone, the process second check valve 8 reaches first pure water mouth output.

In one particular application scenario. The first switch 4 assembly comprises a self-locking liquid level valve 41 and/or a water cut-off valve 42 which are arranged in the water storage tank 9.

The self-locking type liquid level valve 41 is used for controlling whether to input pure water into the water storage tank 9 or not according to whether the pure water liquid level in the water storage tank 9 reaches a preset height.

The water cut-off valve 42 is used for manually controlling whether to input pure water into the water storage tank 9 or not.

Preferably, the self-locking liquid level valve 41 includes a first valve body 411 and a floating ball 412 disposed in the pure water tank, and is configured to control the first valve body 411 to close through the floating ball 412 according to the buoyancy of the pure water in the water tank 9 to the floating ball 412, so that the pure water stops flowing through the first valve body 411.

Preferably, the self-locking liquid level valve 41 further comprises a forcing button for manually opening the first valve body 411 to allow the pure water to flow through the first valve body 411.

Preferably, the water cut-off valve 42 is arranged in an upper cover 421 of the water storage tank 9 and is used for closing the water cut-off valve 42 when the upper cover 421 is opened; when the upper cap 421 is closed, the water cut-off valve 42 is opened.

For example, when the upper cover 421 of the water storage tank 9 is opened, the water cut-off valve 42 is closed, so that the phenomenon that water is thrown and scattered in a pure and taken mode when water is taken in the water making process can be avoided. After water is taken, the upper cover 421 can be closed, at this time, the water cut-off valve 42 is opened at the same time, the forced button on the upper cover 421 is pressed, the self-locking liquid level valve 41 is opened, and water making is started.

The second embodiment provided by the application is an embodiment of a method for maintaining the quality of produced water.

The present embodiment is described in detail with reference to fig. 2, wherein fig. 2 is a flowchart of a method for maintaining quality of produced water according to the present embodiment; fig. 3 is a flowchart of a method for maintaining quality of produced water according to an embodiment of the present disclosure.

The second embodiment provided in the present application is described more simply, and the relevant portions should be referred to the corresponding descriptions of the first embodiment provided above. The embodiments described below are merely illustrative.

This embodiment provides a method of maintaining a quality of produced water comprising the system for maintaining a quality of produced water of the first embodiment. Please refer to fig. 2, which includes the following steps:

step 101, opening the first switch 4 assembly to make the water to be treated flow into the integrated assembly 1 through the first water inlet.

And 102, enabling the water to be treated to pass through the integrated filter element to generate pure water and concentrated water.

And 103, outputting the pure water to the outside through the first pure water port and the first switch 4 assembly.

And 104, enabling the concentrated water to flow into the controlled end through the concentrated water regulating valve 2, opening the four-side valve 3 by means of the liquid pressure difference of the controlled end to the control end, and discharging the concentrated water outwards.

Referring to fig. 3, the method further includes the following steps:

step 201, closing the first switch 4 assembly, and making the water to be treated flow into the integrated assembly 1 through the first water inlet.

And 202, enabling the water to be treated to pass through the integrated filter element to generate the pure water and the concentrated water.

And 203, allowing the pure water to flow into the control end through the first pure water port, closing the four-side valve 3 by means of the liquid pressure difference of the control end to the controlled end, and stopping discharging the concentrated water outwards.

The method further comprises the following steps:

the second switch 5 is opened, so that the water to be treated flows into the integrated assembly 1 through the first water inlet and is discharged outwards through the first concentrated water inlet and the second switch 5.

The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.

Claims

1. A system for maintaining the quality of produced water, comprising:

2. The system of claim 1, further comprising a flushing assembly;

3. The system of claim 2, wherein the flushing assembly comprises a second switch connected to the first concentrate port.

4. The system of claim 2, wherein the flush assembly comprises a first one-way valve having an input connected to the first concentrate port and a second switch connected to an output of the first one-way valve.

5. The system of claim 1, further comprising a pressure relief valve connected to the first water inlet.

6. The system of claim 1, wherein the pure water output assembly further comprises a second one-way valve, an output end of the second one-way valve being connected to the first pure water port.

7. The system of claim 1, wherein the integrated filter cartridge comprises a pre-filter element and a filter membrane.

8. The system of claim 7, wherein the pre-filter element comprises a layered combination of: a PP cotton layer and an activated carbon rod layer, or a PP cotton layer and a mixture layer of activated carbon and resin, or a PP cotton layer, a mixture layer of activated carbon and resin and a PP cotton layer, or a PP cotton layer and an activated carbon fiber layer.

9. The system of claim 7, wherein the membrane filter comprises: an ultra-low pressure reverse osmosis membrane or an ultra-low pressure nanofiltration membrane.

10. The system according to any one of claims 1 to 9, wherein the first switch assembly comprises a self-locking liquid level valve and/or a water cut-off valve installed in the water storage tank;

11. The system as claimed in claim 10, wherein the self-locking liquid level valve comprises a first valve body and a floating ball arranged in the pure water tank, and the first valve body is controlled to close by the floating ball according to the buoyancy of the pure water in the water tank to the floating ball, so that the pure water stops flowing through the first valve body.

12. The system of claim 11, further comprising a force button for manually opening the first valve body to allow the pure water to flow through the first valve body.

13. The system of claim 10, wherein the water shut-off valve is disposed in an upper lid of the storage tank and is configured to close the water shut-off valve when the upper lid is opened; when the upper cover is closed, the water cut-off valve is opened.

14. A method of maintaining the quality of produced water, comprising a system for maintaining the quality of produced water according to any one of claims 1 to 13;

15. The method of claim 14, further comprising:

16. The method of claim 14, further comprising: