CN211896398U

CN211896398U - Water purification system

Info

Publication number: CN211896398U
Application number: CN202020281501.2U
Authority: CN
Inventors: 杨书雄
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-11-10
Anticipated expiration: 2030-03-09

Abstract

The utility model provides a water purification system. The water purification system comprises a booster pump, a reverse osmosis filter element, an electric control tap, a first pipeline and a second pipeline, wherein a water outlet of the booster pump is connected to a water inlet of the reverse osmosis filter element; one end of the first pipeline is connected to a pure water outlet of the reverse osmosis filter element, the other end of the first pipeline is connected to a water inlet of the electric control faucet, and a check valve and an ion exchange filter element are arranged on the first pipeline; one end of the second pipeline is connected to a pure water outlet of the reverse osmosis filter element, the other end of the second pipeline is connected to a water inlet of the electric control faucet, a water outlet electromagnetic valve is arranged on the second pipeline, the back pressure of the first pipeline is larger than that of the second pipeline in the opening state of the water outlet electromagnetic valve, and the back pressure of the first pipeline is smaller than the water pressure at the pure water outlet of the reverse osmosis filter element. Through the arrangement, the water purification system can realize the function of switching the trend of the water path only by arranging a common electromagnetic valve (namely a water outlet electromagnetic valve).

Description

Water purification system

Technical Field

The utility model relates to a technical field of aqueous cleaning specifically, relates to a water purification system.

Background

With the pursuit of the public on the quality of life, the water purifier gradually enters the families of people. Reverse osmosis water purifiers are becoming more popular because the purified water produced by them is fresher, more sanitary and safer.

The reverse osmosis filter element is a core component of the reverse osmosis water purifier. The raw water is filtered by the reverse osmosis membrane to generate pure water and concentrated water according to the proportion. After water production is finished, concentrated water and raw water are stored in front of the reverse osmosis membrane, and pure water is stored in the central pipe. After the machine is stopped, ions in the concentrated water and the raw water before the membrane can be gradually diffused into the pure water after the membrane, so that the pure water after the membrane is polluted. A long shut down can result in a significant increase in TDS (total dissolved solids) of the pure water behind the membrane, resulting in the first cup of water being substandard.

For solving above-mentioned problem, prior art connects two parallelly connected water routes at the pure water outlet of reverse osmosis filter core, and a water route is provided with the ion exchange filter core, and the ion exchange filter core can produce the pure water through the mode of ion exchange, at first makes the water that the pure water mouth of reverse osmosis filter core flows through the ion exchange filter core after the start, operates a period of time after, switches to another water route to reduce the operating time duration of ion exchange filter core. The switching of the water flow between the two parallel water paths is realized by respectively arranging an electromagnetic valve on each water flow. However, the additional addition of two electromagnetic valves leads to a complex circuit system corresponding to the water purifier, which is not favorable for reducing the cost of the water purifier.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art at least partially, the utility model provides a water purification system. The water purification system comprises a booster pump, a reverse osmosis filter element, an electric control tap, a first pipeline and a second pipeline, wherein a water outlet of the booster pump is connected to a water inlet of the reverse osmosis filter element; one end of the first pipeline is connected to a pure water outlet of the reverse osmosis filter element, the other end of the first pipeline is connected to a water inlet of the electric control faucet, and a check valve and an ion exchange filter element are arranged on the first pipeline; one end of the second pipeline is connected to a pure water outlet of the reverse osmosis filter element, the other end of the second pipeline is connected to a water inlet of the electric control faucet, a water outlet electromagnetic valve is arranged on the second pipeline, the back pressure of the first pipeline is larger than that of the second pipeline in the opening state of the water outlet electromagnetic valve, and the back pressure of the first pipeline is smaller than the water pressure at the pure water outlet of the reverse osmosis filter element.

Through the arrangement, the water purification system can realize the function of switching the trend of the water path only by arranging a common electromagnetic valve (namely a water outlet electromagnetic valve). Therefore, the working time of the ion exchange filter element can be reduced, and the service life of the ion exchange filter element is effectively prolonged. In addition, only one water outlet electromagnetic valve is arranged, so that a circuit system of the water purification system is simpler, the safety and the stability are improved, and the cost is effectively reduced.

Illustratively, the opening pressure of the check valve is larger than the back pressure generated by the water outlet solenoid valve in the opening state. Therefore, the pipeline does not need to be additionally arranged, so that the production links of the water purification system are reduced, the production period is shortened, the production cost is reduced, and the problem that the service life of the ion exchange filter element is influenced because the check valve is flushed by water flow when the water outlet electromagnetic valve is opened and the water flow enters the ion exchange filter element can be avoided.

Illustratively, the check valve has an opening pressure between 0.3MPa and 0.5 MPa. Therefore, it is more appropriate to set the opening pressure of the check valve 120 within this range.

Illustratively, the check valve is located upstream of the ion exchange cartridge. Therefore, the problem that when the water outlet electromagnetic valve is opened, water flow rushes the check valve to enter the ion exchange filter element to influence the service life of the ion exchange filter element can be avoided.

Illustratively, the water purification system further comprises a controller electrically connected to the booster pump, the water outlet solenoid valve and the electrically controlled faucet, the controller turning on the booster pump in response to an electrical signal triggered by the electrically controlled faucet and turning on the water outlet solenoid valve after a predetermined period of time. Like this, can make water purification system react rapidly, realize automatic control, promote user experience.

Illustratively, the ion exchange cartridge comprises a mixed bed resin cartridge. The mixed bed resin filter element has the advantages of good and stable effluent quality and the like.

Exemplarily, the water purification system further comprises a water inlet solenoid valve, and a water outlet of the water inlet solenoid valve is connected to a water inlet of the booster pump. Therefore, the water flow can be cut off, and the water flow is prevented from continuously entering the water purification system to cause waste

Exemplarily, the water purification system further comprises a pre-filter element, and a water outlet of the pre-filter element is connected to a water inlet of the booster pump. Through this kind of setting, can realize the multi-stage filtration to the raw water, further improve the quality of pure water, realize effective protection to the reverse osmosis filter core simultaneously, improve the working life of reverse osmosis filter core.

Illustratively, the pre-filter element comprises a PP cotton filter element or an activated carbon filter element or an ultrafiltration membrane filter element or a composite filter element formed by compounding any two or more of the PP cotton filter element or the activated carbon filter element or the ultrafiltration membrane filter element. Through the arrangement, the filter element combination of the water purification system is more reasonable, and the raw water is filtered more thoroughly.

Illustratively, the water purification system further comprises a concentrate solenoid valve, and the concentrate outlet of the reverse osmosis filter element is connected to the water inlet of the concentrate solenoid valve. The concentrated water can be controlled to be discharged according to a certain proportion by arranging the concentrated water electromagnetic valve, so that the normal work of the reverse osmosis filter element is ensured.

A series of concepts in a simplified form are introduced in the disclosure, which will be described in further detail in the detailed description section. The summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The advantages and features of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings, there is shown in the drawings,

fig. 1 is a schematic water circuit diagram of a water purification system according to an exemplary embodiment of the present invention; and

fig. 2 is a schematic circuit diagram of a water purification system according to an exemplary embodiment of the present invention.

Wherein the figures include the following reference numerals:

101. a first pipeline; 102. a second pipeline; 100. a water inlet electromagnetic valve; 110. a front filter element; 120. a check valve; 150. a water outlet electromagnetic valve; 200. a booster pump; 300. a reverse osmosis filter element; 500. an ion exchange cartridge; 600. an electrically controlled faucet; 800. a concentrated water electromagnetic valve; 900. and a controller.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present invention. One skilled in the art, however, will understand that the following description illustrates only a preferred embodiment of the invention and that the invention may be practiced without one or more of these details. In addition, some technical features that are well known in the art are not described in detail in order to avoid obscuring the present invention.

In order to avoid delivering the first stage of water with a higher TDS (total dissolved solids) to the user after a long period of time without water being taken, the present invention provides a water purification system, as shown in fig. 1, wherein the arrows schematically show the flow direction of the water flow within the water purification system. According to the utility model discloses water purification system can be applied to arbitrary suitable purifier.

A water purification system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the water purification system may include a booster pump 200, a reverse osmosis filter 300, an electrically controlled faucet 600, a first line 101, and a second line 102.

The water outlet of the booster pump 200 may be connected to the water inlet of the reverse osmosis cartridge 300. The reverse osmosis filter element 300 can effectively remove impurities such as calcium, magnesium, bacteria, organic matters, inorganic matters, metal ions, radioactive substances and the like in water.

As is known in the art, reverse osmosis cartridge 300 requires pressure to drive the water stream through reverse osmosis cartridge 300 to separate pure water from other substances in the water stream. Therefore, the booster pump 200 may be used to meet the operational requirements of the reverse osmosis cartridge 300. Since the reverse osmosis filter element 300 generates the concentrated water in a certain ratio while preparing the pure water, the reverse osmosis filter element 300 has a pure water outlet and a concentrated water outlet. The water flow is filtered by the reverse osmosis cartridge 300 and the concentrate can be discharged through the concentrate outlet and through the concentrate solenoid valve 800.

One end of the first pipe 101 may be connected to a pure water outlet of the reverse osmosis cartridge 300. The other end of the first pipe 101 may be connected to the water inlet of the electrically controlled faucet 600. The first line 101 may be provided with a check valve 120 and an ion exchange cartridge 500.

The ion exchange cartridge 500 purifies water by means of ion exchange. Specifically, the ion exchange filter element 500 can exchange H in the ion exchange filter element 500 by using impurity ions in water⁺And OH^-Thereby removing the dissolved matters in the raw water and reducing TDS. Illustratively, the ion exchange cartridge 500 can comprise a mixed bed resin cartridge. Mixed bed resin cartridges are known in the art and include H-type cation resins and OH-type anion resins. The ion exchange cartridge 500 can be of various commercially available types, such as blantt

MB47, and the like. The mixed bed resin filter element has the advantages of good and stable effluent quality and the like. In addition to mixed bed resin cartridges, ion exchange cartridges 500 may be constructed of various types of ion exchange cartridges known in the art or that may come into existence in the future, so long as the impurity ions in the water can be used to exchange H⁺And OH^-To reduce TDS. The improvement of the present invention is not in the specific construction of the ion exchange cartridge 500 and therefore will not be described in further detail herein.

One end of the second pipe 102 may be connected to a pure water outlet of the reverse osmosis cartridge 300. The other end of the second conduit 102 may be connected to the water inlet of the electrically controlled faucet 600. The second pipeline 102 may be provided with a water outlet solenoid valve 150.

Electrically controlled faucet 600 may be any variety and type of electrically controlled faucet. Electrically controlled faucet 600 may also incorporate temperature regulation, time control, and the like. Any kind of electrically controlled tap, existing or that may occur in the future, may also be chosen by the person skilled in the art, as long as the above-mentioned function is achieved, and will therefore not be described in further detail. The first and

second lines

101, 102 may be connected to the same water inlet of the electrically controlled tap 600. Alternatively, the first and

second lines

101, 102 may also be connected to different water inlets of the electrically controlled faucet 600, for example an electrically controlled faucet having multiple water inlets.

The back pressure of the first pipe 101 may be greater than the back pressure of the second pipe 102 in the open state of the outlet solenoid valve 150, and the back pressure of the first pipe 101 may be less than the water pressure at the pure water outlet of the reverse osmosis cartridge 300. Thus, when the water outlet solenoid valve 150 is closed, water flow is only delivered to the electric control faucet 600 through the first pipeline 101, and when the water outlet solenoid valve 150 is opened, water flow can be delivered to the electric control faucet 600 through the second pipeline 102. The backpressure of first pipeline 101 can be realized through multiple modes such as the pipe diameter of control first pipeline 101, check valve 120's opening pressure, the utility model discloses do not restrict.

Illustratively, the check valve 120 may be located upstream of the ion exchange cartridge 500. Therefore, the problem that when the water outlet electromagnetic valve 150 is opened, water flows to flush the check valve 120 and enters the ion exchange filter element 500 to affect the service life of the ion exchange filter element 500 can be avoided.

Illustratively, as shown in fig. 2, the water purification system may further include a controller 900. The controller 900 may be electrically connected to the booster pump 200, the water outlet solenoid valve 150, and the electrically controlled faucet 600. The controller 900 may turn on the booster pump 200 in response to an electrical signal triggered by the electrically controlled faucet 600 and turn on the water outlet solenoid valve 150 after a predetermined period of time. The length of the predetermined period of time can be determined by one skilled in the art based on the performance of the reverse osmosis cartridge 300. Illustratively, the predetermined period of time may be 10 seconds, 15 seconds, 20 seconds, 25 seconds, 30 seconds, 35 seconds, 40 seconds, 45 seconds, 50 seconds, 55 seconds, 60 seconds, 65 seconds, 70 seconds, 75 seconds, 80 seconds, 85 seconds, 90 seconds, and so forth. Also, the principle of the present invention will be explained below by taking the predetermined period of time as 60 seconds as an example.

When the water purification system does not work for a long time, ions in the concentrated water in front of the reverse osmosis membrane and ions in the raw water can be diffused into the pure water behind the membrane according to the principle that the ions are diffused from the high-concentration solution to the low-concentration solution, so that the pure water behind the membrane is polluted. And since the amount of pure water is less than the amounts of raw water and concentrated water, the TDS of pure water will be significantly increased after diffusion. TDS, also known as total dissolved solids, indicates how many milligrams of dissolved solids are dissolved in 1 liter of water. Higher TDS values indicate more solutes in the water.

When the user takes water, the electrically controlled faucet 600 is turned on. The controller 900 turns on the booster pump 200 in response to an electrical signal from the electrically controlled faucet 600 being triggered. The water outlet solenoid valve 150 is closed. The pure water that TDS rose at this moment can get into first pipeline 101 in, after purifying through ion exchange filter element 500, TDS reduces to accord with the drinking standard to supply the user and use via automatically controlled tap 600. When the pure water with the increased TDS is completely discharged after the continuous water intake for 60 seconds, the controller 900 controls the discharge solenoid valve 150 to be opened. At this time, since the back pressure of the first pipeline 101 is greater than that of the second pipeline 102, the newly prepared pure water can enter the second pipeline 102 and be supplied to the user through the electric control faucet 600. When the user finishes taking water, the electrically controlled faucet 600 is closed. The controller 900 may turn off the booster pump 200 and the outlet solenoid valve 150 in response to an electrical signal that the electrically controlled faucet 600 is not activated. Like this, can make water purification system react rapidly, realize automatic control, promote user experience.

Through the arrangement, the water purification system can realize the function of switching the trend of the water path only by arranging one common electromagnetic valve (namely the water outlet electromagnetic valve 150). Therefore, the working time of the ion exchange filter element 500 can be reduced, and the service life of the ion exchange filter element 500 is effectively prolonged. In addition, only one water outlet electromagnetic valve 150 is arranged, so that a circuit system of the water purification system is simpler, the safety and the stability are improved, and the cost is effectively reduced.

In general, the water pipes used for the first pipeline 101 and the second pipeline 102 are standard water pipes, and have the same inner diameter. In this case, the back pressure of each of the first and

second lines

101 and 102 as a whole is substantially determined by the components on the respective line. Therefore, when comparing the back pressures of the first and

second lines

101, 102, only the components on the respective lines may be considered. The back pressure of the first line 101 is primarily considered to be generated by the check valve 120 and the ion exchange cartridge 500. The back pressure of the second line 102 is primarily considered to be generated by the outlet solenoid valve 150. Further, in order to prevent pure water prepared by the reverse osmosis cartridge 300 from flushing the check valve 120 into the ion exchange cartridge 500 when the water outlet solenoid valve 150 is opened, it is preferable that the opening pressure of the check valve 120 is greater than the back pressure of the water outlet solenoid valve 150 in the opened state. Therefore, the pipeline does not need to be additionally arranged, so that the production links of the water purification system are reduced, the production period is shortened, and the production cost is reduced.

Illustratively, the check valve 120 has an opening pressure between 0.3MPa and 0.5 MPa. The back pressure of the first pipeline 101 is increased due to the overlarge opening pressure of the check valve 120, so that higher water pressure is needed, and the energy consumption of the water purification system is higher; however, the opening pressure of the check valve 120 is too low, and water may still enter the ion exchange filter cartridge 500 when the water outlet solenoid valve 150 is opened due to water pressure fluctuation. Therefore, it is more appropriate to set the opening pressure of the check valve 120 within this range.

Illustratively, as shown in fig. 1, the water purification system may further include a water inlet solenoid valve 100. The water outlet of the water inlet solenoid valve 100 may be connected to the water inlet of the booster pump 200. The water inlet solenoid valve 100 may be connected to the controller 900. Likewise, when a user takes water, the controller 900 may open the water inlet solenoid valve 100 in response to an electrical signal that the electrically controlled faucet 600 is triggered. Water flow may enter the booster pump 200 via the water inlet solenoid valve 100. When the user is finished taking water, the controller 900 may close the inlet solenoid valve 100 in response to an electrical signal that the electrically controlled faucet 600 is not triggered. Therefore, water flow can be cut off, and the water flow is prevented from continuously entering the water purification system to cause waste.

Illustratively, as shown in fig. 1, the water purification system may further include a pre-filter element 110. The water outlet of the pre-filter 110 may be connected to the water inlet of the booster pump 200. The preposed filter element can comprise various filter elements such as a stainless steel filter screen, a scale inhibitor and the like. Through this kind of setting, can realize the multi-stage filtration to the raw water, further improve the quality of pure water, realize effective protection to reverse osmosis filter core 300 simultaneously, improve reverse osmosis filter core 300's working life.

Preferably, the pre-filter element 110 may include a PP cotton filter element, an activated carbon filter element, an ultrafiltration membrane filter element, or a composite filter element formed by combining any two or more of them. Through the arrangement, the filter element combination of the water purification system is more reasonable, and the raw water is filtered more thoroughly.

Optionally, as shown in fig. 1, the water purification system may further include a concentrate solenoid valve 800. The concentrate outlet of the reverse osmosis cartridge 300 may be connected to the water inlet of the concentrate solenoid valve 800. The concentrate solenoid valve 800 can be electrically connected to the controller 900. When the reverse osmosis filter cartridge 300 prepares pure water, the generated concentrated water may be discharged to the outside of the water purification system via the concentrated water solenoid valve 800. Illustratively, the concentrate solenoid valve 800 may include a waste ratio valve and a solenoid valve connected in parallel. The waste water ratio valve is actually a throttling device, and concentrated water can be controlled to be discharged according to a certain proportion through the waste water ratio valve. In addition, by the throttling function of the waste water ratio valve, high pressure is generated inside the reverse osmosis filter element 300 when the booster pump 200 is operated, and raw water is pressed into the filter element by the high pressure to be filtered to generate pure water. The solenoid valve is opened when the reverse osmosis filter cartridge 300 is flushed. The concentrated water can be controlled to be discharged according to a certain proportion by arranging the concentrated water electromagnetic valve 800, and the normal work of the reverse osmosis filter element 300 is ensured.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front", "rear", "upper", "lower", "left", "right", "horizontal", "vertical", "horizontal" and "top", "bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe the spatial relationship of one or more components or features shown in the figures to other components or features. It is to be understood that the spatially relative terms are intended to encompass not only the orientation of the component as depicted in the figures, but also different orientations of the component in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A water purification system comprises a booster pump (200), a reverse osmosis filter element (300) and an electric control tap (600), wherein a water outlet of the booster pump is connected with a water inlet of the reverse osmosis filter element, and is characterized by further comprising a first pipeline (101) and a second pipeline (102),

one end of the first pipeline is connected to a pure water outlet of the reverse osmosis filter element, the other end of the first pipeline is connected to a water inlet of the electric control faucet, and a check valve (120) and an ion exchange filter element (500) are arranged on the first pipeline; and

one end of the second pipeline is connected to the pure water outlet of the reverse osmosis filter element, the other end of the second pipeline is connected to the water inlet of the electric control faucet, a water outlet electromagnetic valve (150) is arranged on the second pipeline,

the back pressure of the first pipeline is greater than the back pressure of the second pipeline in the opening state of the water outlet electromagnetic valve, and the back pressure of the first pipeline is less than the water pressure at a pure water outlet of the reverse osmosis filter element.

2. The water purification system of claim 1, wherein the check valve (120) has an opening pressure greater than a back pressure generated by the water outlet solenoid valve (150) in an open state.

3. The water purification system of claim 1, wherein the check valve (120) has an opening pressure between 0.3MPa and 0.5 MPa.

4. The water purification system of claim 1, wherein the check valve (120) is located upstream of the ion exchange cartridge (500).

5. The water purification system of claim 1, further comprising a controller (900) electrically connected to the booster pump (200), the water outlet solenoid valve (150) and the electrically controlled faucet (600), the controller turning on the booster pump in response to an electrical signal triggered by the electrically controlled faucet and turning on the water outlet solenoid valve after a predetermined period of time.

6. The water purification system of claim 1, wherein the ion exchange cartridge (500) comprises a mixed bed resin cartridge.

7. The water purification system of claim 1, further comprising a water inlet solenoid valve (100) having a water outlet connected to a water inlet of the booster pump (200).

8. The water purification system of claim 1, further comprising a pre-filter (110) having a water outlet connected to a water inlet of the booster pump (200).

9. The water purification system of claim 8, wherein the pre-filter element (110) comprises a PP cotton filter element, an activated carbon filter element, an ultrafiltration membrane filter element, or a composite filter element formed by combining any two or more of the above elements.

10. The water purification system of claim 1, further comprising a concentrate solenoid valve (800), wherein a concentrate outlet of the reverse osmosis cartridge (300) is connected to a water inlet of the concentrate solenoid valve.