CN104829024A - Filter system of water purifying plant and water purifying plant with same - Google Patents

Abstract

The invention discloses a filter system of water purification equipment and the water purification equipment with the same. The filter system includes: a pre-filter element connected to an external water source to initially purify water quality; a booster pump through which the booster pump passes The water solenoid valve is connected to the downstream of the pre-filter; the RO membrane filter, the RO membrane filter is connected to the downstream of the booster pump, and the RO membrane filter has a water inlet, a clean water outlet and a waste water outlet; the flexible water bag, the flexible water bag and the RO membrane The water purification outlet of the filter element is connected; the rear filter element is connected to the flexible water bag through the water pump to further purify the water from the flexible water bag, and the rear filter element is suitable for connecting with the outlet faucet; UV lamp, the UV lamp is used to clean the flexible water bag The water in the water bag is sterilized. According to the filter system of the water purification equipment of the embodiment of the present invention, the UV lamp can sterilize the water in the flexible water bag again, avoiding the growth of bacteria in the flexible water bag for a long time, thereby further improving the quality of drinking water and ensuring the health of drinking water for users.

Description

Filtration system of water purification equipment and water purification equipment having same

technical field

The invention relates to the technical field of water purification equipment, in particular to a filter system of the water purification equipment and the water purification equipment provided with it.

Background technique

With the vigorous development of the water purification equipment market, more and more water purification equipment have entered thousands of households. At present, the mainstream of water purification equipment is RO reverse osmosis water purifier, and RO reverse osmosis water purifier is divided into large flow and small flow. There are two types. The large flow mainly includes 400 gallons, 500 gallons, 600 gallons, etc. The small flow mainly includes 50 gallons, 75 gallons, 100 gallons and 200 gallons. Consumers need it, but the price is expensive, and it is difficult for ordinary families to accept it. The small flow system usually produces about 0.2-0.5L of water per minute, and it usually takes 1-2 minutes to receive a glass of water. Therefore, traditional small flow systems are usually equipped with 3 to The 5-gallon pressure tank stores water to increase the net water flux at the end and shorten the waiting time for water intake. There are several disadvantages in this way of storing water in the pressure tank and pressurizing the water outlet: First, the water storage tank is too large to completely drain the water Clean, some water will remain every time, resulting in stagnant water quality and easy breeding of bacteria. Second, the pressure tank is relatively large and can only be installed externally, which takes up space and the waterway is complicated.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a filter system of water purification equipment, which can sterilize and disinfect the water in the flexible water bag, which is beneficial to the health of drinking water for users.

The invention also proposes a water purification device with the filter system of the water purification device.

A filter system for water purification equipment according to an embodiment of the present invention, comprising: a pre-filter element, the pre-filter element is connected to an external water source for preliminary water purification; a booster pump, the booster pump is connected through a water inlet solenoid valve Downstream of the pre-filter; RO membrane filter, the RO membrane filter is connected downstream of the booster pump, and the RO membrane filter has a water inlet, a clean water outlet and a waste water outlet; a flexible water bag, the flexible water The bag is connected to the water purification outlet of the RO membrane filter element; the rear filter element is connected to the flexible water bag through a water pump to further purify the water from the flexible water bag, and the rear filter element is suitable for It is connected with the water outlet; the UV lamp is used to sterilize the water in the flexible water bag.

According to the filter system of the water purification equipment in the embodiment of the present invention, by using the flexible water bag instead of the traditional pressure tank, the water storage capacity in the filter system can be increased, and the volume of the flexible water bag is small, which can reduce the pressure of the flexible water bag. In addition, the water pump can drain the water in the flexible water bag to ensure fresh water quality and improve the water quality of pure water. Furthermore, the UV lamp can sterilize the water in the flexible water bag again, so as to avoid the growth of bacteria in the flexible water bag for a long time, thereby further improving the quality of drinking water and ensuring the health of drinking water for users.

According to some embodiments of the present invention, the filter system of the water purification equipment further includes a waste water solenoid valve, and the waste water solenoid valve is arranged on a waste water waterway connected to the waste water outlet.

According to some embodiments of the present invention, the flexible water bag is a double-sided flexible water bag.

According to some embodiments of the present invention, a liquid level switch is arranged in the flexible water bag.

Optionally, the liquid level switch is a micro switch, a dry reed switch or an infrared pair tube.

According to some embodiments of the present invention, the filter system of the water purification equipment further includes a high-pressure switch connected between the rear filter element and the water outlet tap.

Optionally, the high pressure switch is a flow switch or a flow meter.

According to some embodiments of the present invention, the UV lamp is arranged at the water inlet of the flexible water bag.

According to some embodiments of the present invention, the UV lamp is installed behind the water pump, post filter element, high pressure switch or directly before the water outlet tap.

According to some embodiments of the present invention, the pre-filter element is a PAC composite filter element, a PP+Active C composite filter element, or a PP filter element+Active C filter element.

According to some embodiments of the present invention, the post filter element is a C+UF composite filter element.

In addition, the present invention also proposes a water purification device having the filter system of the above water purification device. The flexible water bag can increase the water storage capacity of the filtration system and reduce the occupied space, and the water pump can completely discharge the water in the flexible water bag, realizing the ready-to-use water, keeping the water fresh and avoiding secondary pollution, To improve the quality of water, the UV light can sterilize the water in the flexible water bag, avoiding the growth of bacteria caused by the flexible water bag not being used for a long time, so as to further improve the quality of drinking water and ensure the health of drinking water for users.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural diagram of a filter system of a water purification device according to an embodiment of the present invention.

Reference signs:

100: filter system;

1: Pre-filter, 2: Booster pump, 3: Water inlet solenoid valve;

4: RO membrane filter element, 41: water inlet, 42: purified water outlet, 43: waste water outlet;

5: waste water channel, 51: waste water solenoid valve;

6: flexible water bag, 61: liquid level switch, 62: water inlet of flexible water bag;

7: Rear filter element;

8: High voltage switch;

9: water pump;

10: UV light.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The following describes a filter system 100 of a water purification device according to an embodiment of the present invention with reference to FIG. 1 .

As shown in FIG. 1 , a filter system 100 of a water purification device according to an embodiment of the present invention may include a pre-filter 1 , a booster pump 2 , an RO membrane filter 4 , a flexible water bag 6 , a post-filter 7 and a UV lamp 10 . In Figure 1, the solid line arrows point to the flow direction of clean water, and the dotted line arrows point to the waste water flow direction.

As shown in Figure 1, the pre-filter element 1 is connected to the external water source, and the tap water from the external water source can be preliminarily purified through the pre-filter element 1. The pre-filter element 1 can intercept rust, sediment and other particulate matter to remove residual chlorine in the tap water and organic impurities.

The booster pump 2 is connected downstream of the pre-filter 1, between the pre-filter 1 and the RO membrane filter 4, connected to the power supply, and provides water pressure for the filtration system 100 to draw tap water from an external water source so that the tap water passes through the pre-filter 1. The tap water flows to the RO membrane filter element 4 after being filtered by the pre-filter element 1. At the same time, the booster pump 2 can provide thrust for the water outlet of the flexible water bag 6, so that the water in the flexible water bag 6 can be completely discharged. A water inlet solenoid valve 3 is connected between the booster pump 2 and the pre-filter element 1 , so that the on-off of water between the pre-filter element 1 and the booster pump 2 can be effectively controlled.

As shown in Figure 1, the RO membrane filter element 4 is connected downstream of the booster pump 2, and the booster pump 2 draws the preliminarily purified water to the RO membrane filter element 4, and the RO membrane filter element 4 can remove bacteria, viruses, metal ions, organic Substances and other impurities to further purify the water after the initial purification. The RO membrane filter element 4 has a water inlet 41, a purified water outlet 42 and a waste water outlet 43. Specifically, the water inlet 41 of the RO membrane filter element 4 is connected to the booster pump 2, and the purified water outlet 42 is connected to the flexible water bag 6. The booster pump 2. The extracted water flows into the RO membrane filter element 4 from the water inlet 41, the purified water filtered by the RO membrane filter element 4 flows out from the purified water outlet 42, and the waste water flows out from the wastewater outlet 43.

The flexible water bag 6 is connected to the water purification outlet 42 of the RO membrane filter element 4, so that the purified water filtered by the RO membrane filter element 4 flows from the water purification outlet 42 to the flexible water bag 6, and can be stored in the flexible water bag 6. The shape of the water bag 6 can change with the water storage volume, thereby increasing the water storage capacity of the water purification equipment. At the same time, the volume of the flexible water bag 6 is small, which can reduce the occupied space of the flexible water bag 6 in the water purification equipment.

The rear filter element 7 is connected to the downstream of the flexible water bag 6, and is connected to the flexible water bag 6 by a water pump 9 to further purify the water from the flexible water bag 6. The rear filter element 7 is suitable for connecting with the water outlet tap (not shown), In this way, the water pump 9 can absorb the water in the flexible water bag 6 and completely discharge the water in the flexible water bag 6. After being filtered again by the rear filter element 7, it will flow out from the outlet tap for the user to drink, so that the instant production of pure water can be realized. Ready to use, keep the water fresh and avoid secondary pollution.

The UV lamp 10 can be used to sterilize and disinfect the water in the flexible water bag 6 to prevent the flexible water bag 6 from breeding bacteria for a long time, thereby further improving the water quality of the purified water and benefiting the health of drinking water for users. Specifically, when the user needs to drink water, the water pump 9 is turned on, and the UV lamp 10 is turned on at the same time to sterilize the water in the flexible water bag 6 . When the water purification equipment is producing water, the UV lamp 10 can also be turned on to further sterilize the purified water to improve the quality of the purified water.

Thus, as shown in Figure 1, the tap water from the external water source is preliminarily purified through the pre-filter 1, the booster pump 2 is connected to the power supply, the water inlet solenoid valve 3 and the UV lamp 10 are turned on, and the booster pump 2 draws the preliminarily purified water Flow to the RO membrane filter element 4, after the RO membrane filter element 4 performs secondary purification of the water, the water purified by the RO membrane filter element 4 group flows to the flexible water bag 6 and is stored in the flexible water bag 6, and the UV lamp 10 can control the flow of the flexible water The water in the bag 6 is sterilized. When the user needs to drink water, turn on the outlet tap and UV lamp 10 to sterilize the water flowing out of the flexible water bag 6, and the water pump 9 extracts the water in the flexible water bag 6 to be filtered again by the rear filter element 7, and the purified water is discharged from the outlet tap discharge.

According to the filter system 100 of the water purification equipment of the embodiment of the present invention, by using the flexible water bag 6 instead of the traditional pressure tank, the water storage capacity of the filter system 100 can be increased, and the volume of the flexible water bag 6 is small, which can reduce the flexibility. The water bag 6 takes up space in the water purification equipment, and the water in the flexible water bag 6 can be removed by the water pump 9 in addition, so as to ensure the freshness of the water quality and improve the water quality of the pure water. Further, the UV lamp 10 can re-sterilize the water in the flexible water bag 6 to prevent the flexible water bag 6 from breeding bacteria for a long time, thereby further improving the quality of drinking water and ensuring the health of drinking water for users.

As shown in Figure 1, the filtration system 100 of the water purification equipment also includes a waste water solenoid valve 51, the waste water solenoid valve 51 is arranged on the waste water waterway 5, and the waste water waterway 5 is connected with the waste water outlet 43, thus, the waste water of the RO membrane filter element 4 can be Discharged from the waste water channel 5 , the waste water solenoid valve 51 is used to control the flow of waste water on the waste water channel 5 .

In some embodiments of the present invention, the flexible water bag 6 can be a double-sided flexible water bag, so that when the water pump 9 extracts the clean water in the double-sided flexible water bag, it can further ensure that the water in the flexible water bag 6 is completely discharge, thereby making the clean water quality in the flexible water bag 6 more fresh.

As an optional embodiment, a liquid level switch 61 can be arranged in the flexible water bag 6, and the liquid level switch 61 is used to detect whether the flexible water bag 6 is filled with water. The higher position of the liquid level in the water bag 6 is convenient for detecting whether the flexible water bag 6 is full of water. For the liquid level switch 61, in some examples of the present invention, the liquid level switch 61 can be a microswitch, and the microswitch is sensitive, which can improve the sensitivity of the liquid level switch 61; in other examples of the present invention, The liquid level switch 61 can be a dry reed switch, which is small in size and can be installed in a limited space, thereby reducing the occupied space of the liquid level switch 61; or the liquid level switch 61 can also be an infrared pair tube. Of course, it can be understood that the liquid level switch 61 can also be in other forms.

As shown in Figure 1, the filter system 100 of the water purification equipment can also include a high-voltage switch 8, which is connected between the rear filter element 7 and the water outlet faucet to cut off the power supply at high voltage and stop water production. For the high-pressure switch 8, the high-pressure switch 8 can be a flow switch or a flowmeter, and like this, the flow of the clean water passing through the high-pressure switch 8 can be adjusted by the flow switch or the flowmeter to control the water outlet speed of drinking water.

Specifically, when the user needs to drink water, turn on the high-voltage switch 8, turn on the water pump 9, and turn on the UV lamp 10 at the same time to sterilize the water in the flexible water bag 6; If the flexible water bag 6 is not full of water, open the water inlet solenoid valve 3 and the booster pump 2 to start water production. During the water production process, the UV lamp 10 can be turned on at the same time to further control the water of the flexible water bag. The clean water in 6 is sterilized; when the liquid level switch 61 detects that the flexible water bag 6 is full of water, the water inlet solenoid valve 3, the booster pump 2 and the UV lamp 10 are closed.

For the UV lamp 10, in some embodiments of the present invention, the UV lamp 10 can be arranged at the water inlet 41 of the flexible water bag 6, and when water is produced, the purified water filtered by the RO membrane filter element 4 will flow from the flexible water bag The water inlet 62 of the flexible water bag 6 flows to the flexible water bag 6, thereby facilitating the UV lamp 10 to sterilize the water flowing to the flexible water bag 6. At the same time, when the user drinks water, the clean water of the flexible water bag 6 flows from the water inlet 62 flow out, thereby facilitating the UV lamp 10 to sterilize the clean water flowing out of the flexible water bag 6 .

In other embodiments of the present invention, the UV lamp 10 can be installed after the water pump 9, the rear filter element 7, the high pressure switch 8 or directly before the water outlet tap. That is to say, the UV lamp 10 can be arranged behind the water pump 9, and after the water pump 9 extracts the water in the flexible water bag 6 and discharges it from the water pump 9, it is sterilized; the UV lamp 10 can also be arranged after the rear filter element 7, to Sterilize the clean water discharged from the rear filter element 7, or the UV lamp 10 can also be set behind the high-voltage switch 8, and when the clean water flows from the high-pressure switch 8 to the water tap, the clean water is sterilized. Furthermore, the UV lamp 10 can be directly Installed before the faucet, when the user takes water from the faucet, the drinking water is sterilized. In other words, the UV lamp 10 can sterilize the water in the flexible water bag 6 before drinking, so as to ensure the health of the user's drinking water.

Optionally, the pre-filter element 1 can be a PAC composite filter element, a PP+active C composite filter element or a PP filter element+active C filter element. In some examples of the present invention, the pre-filter element 1 can be a PAC composite filter element, and the PAC composite filter element includes a three-layer composite of non-woven fabric, carbon fiber and PP cotton, thus, when the PAC composite filter element needs to be replaced, the installation of the PAC composite filter element The box can be free of cleaning, so that the practicability of the filter system 100 of the water purification equipment can be improved to a certain extent. In some other examples of the present invention, the pre-filter element 1 may be a PP+activated C composite filter element or a PP filter element+activated C filter element to perform preliminary purification of water from an external water source.

Optionally, the rear filter element 7 may be a C+UF composite filter element, that is, an activated carbon ultrafiltration composite filter element. The activated carbon filter element can absorb residual chlorine, peculiar smell and color, organic pollutants, etc. in the water. Minerals, trace elements, etc. As a result, the C+UF composite filter element can further absorb the color and odor substances in the water, and at the same time, it can adjust the taste of the water and improve the quality of the water. Alternatively, the rear filter element 7 can also be an activated carbon filter element or a UF filter element. It can be understood that the post-filter element 7 can be in various other forms, which are not specifically limited in the present invention.

In addition, the present invention also proposes a water purification device with the filter system 100 of the above-mentioned water purification device. The flexible water bag 6 can increase the water storage capacity of the filter system 100 and reduce the occupied space, and the water pump 9 can move the flexible water bag The water in 6 is completely discharged to realize the ready-to-use water, keep the water fresh, avoid secondary pollution, and improve the quality of water. Further, the UV lamp 10 can sterilize the water in the flexible water bag 6 to avoid If the flexible water bag 6 is not used for a long time, bacteria will grow, thereby further improving the water quality of drinking water and ensuring the health of drinking water for users.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (12)

1. a filtering system for water purifying plant, is characterized in that, comprising:

Preposition filter core, described preposition filter core is connected with external water source with rough purification water quality;

Topping-up pump, described topping-up pump is connected to the downstream of described preposition filter core by entering water electromagnetic valve;

RO membrane cartridge, described RO membrane cartridge is connected to the downstream of described topping-up pump, and RO membrane cartridge has water-in, pure water inlet and wastewater outlet;

Flexible water bag, described flexible water bag is connected with the pure water inlet of described RO membrane cartridge;

Rearmounted filter core, described rearmounted filter core is connected to purify the water from described flexible water bag further with described flexible water bag by water pump, and described rearmounted filter core is suitable for being connected with depotition cock;

UV lamp, described UV lamp is used for carrying out sterilization and disinfection to the water in described flexible water bag.

2. the filtering system of water purifying plant according to claim 1, is characterized in that, comprises Wastewater by Electric magnet valve further, and described Wastewater by Electric magnet valve is located on the waste water water route that is connected with described wastewater outlet.

3. the filtering system of water purifying plant according to claim 1, is characterized in that, described flexible water bag is double-faced flexible water bag.

4. the filtering system of water purifying plant according to claim 1, is characterized in that, is provided with liquid level switch in described flexible water bag.

5. the filtering system of water purifying plant according to claim 4, is characterized in that, described liquid level switch is vernier switch, dry-reed tube or infrared tube.

6. the filtering system of water purifying plant according to claim 1, is characterized in that, comprises high-voltage switch gear further, and described high-voltage switch gear is connected between described rearmounted filter core and described depotition cock.

7. the filtering system of water purifying plant according to claim 6, is characterized in that, described high-voltage switch gear is flow valve or under meter.

8. the filtering system of water purifying plant according to claim 1, is characterized in that, described UV lamp is located at the water inlet of described flexible water bag.

9. the filtering system of water purifying plant according to claim 1, is characterized in that, after described UV lamp is located at water pump, rearmounted filter core, high-voltage switch gear or before being directly installed on depotition cock.

10. the filtering system of water purifying plant according to claim 1, is characterized in that, described preposition filter core is PAC composite filter element, the active C composite filter element of PP+ or PP filter core+active C filter core.

The filtering system of 11. water purifying plants according to claim 1, is characterized in that, described rearmounted filter core is C+UF composite filter element.

12. 1 kinds of water purifying plants, is characterized in that, comprise the filtering system of the water purifying plant according to any one of claim 1-11.