Water purification equipment

Abstract

The utility model provides water purification equipment, which comprises a first water path, a second water path, a third water path and a fourth water path, the first water path comprises a water inlet, a pre-filter and ultrafiltration equipment, and the pre-filter is arranged between the water inlet and the ultrafiltration equipment; the second water path comprises reverse osmosis equipment and a water tank, and the reverse osmosis equipment is arranged between the ultrafiltration equipment and the water tank; the third water path comprises a water outlet, and the water outlet is connected with the water tank; the fourth water path comprises a first electromagnetic valve, a first interface is arranged between the ultrafiltration equipment and the reverse osmosis equipment, a second interface is arranged between the water outlet and the water tank, one end of the fourth water path is connected with the first interface, and the other end of the fourth water path is connected with the second interface. By arranging the fourth water path, variable-frequency water supply can be achieved, the water yield is more stable, the filter element can be washed, and the service life of the filter element is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification technical field, especially a water purification equipment. BACKGROUND

[0002] In the prior art, water purification involves filtration at various stages, including sediment filtration, activated carbon filtration and more advanced methods such as ultrafiltration and reverse osmosis. These stages aim to remove contaminants from water to make it suitable for various purposes. However, there are several problems in water treatment in the whole house, on the one hand, the flow of the outlet water needs to be guaranteed, on the other hand, the service life of the filter core needs to be improved. Therefore, it is necessary to provide a whole house water purification equipment to overcome the defects existing in the above. SUMMARY

[0003] The utility model aims at providing a water purification equipment for whole house water treatment.

[0004] According to one aspect of the utility model, a water purification equipment is provided, comprising:

[0005] A first water path comprising a water inlet, a pre-filter and an ultrafiltration device, the pre-filter being arranged between the water inlet and the ultrafiltration device;

[0006] A second water path comprising a reverse osmosis device and a water tank, the reverse osmosis device being arranged between the ultrafiltration device and the water tank;

[0007] A third water path comprising a water outlet, the water outlet being connected to the water tank;

[0008] A fourth water path comprising a first electromagnetic valve, a first interface being arranged between the ultrafiltration device and the reverse osmosis device, a second interface being arranged between the water outlet and the water tank, one end of the fourth water path being connected to the first interface, the other end of the fourth water path being connected to the second interface.

[0009] Preferably, the second water path further comprises a water supply pump and a second electromagnetic valve arranged between the water tank and the second interface, the water tank, the water supply pump, the second electromagnetic valve and the second interface being connected in sequence.

[0010] Preferably, it further comprises a wastewater outlet, a first flushing valve and a second flushing valve, the first flushing valve being arranged between the ultrafiltration device and the wastewater outlet, the second flushing valve being arranged between the reverse osmosis device and the wastewater outlet, the first flushing valve and the second flushing valve being arranged in parallel.

[0011] Preferably, a third flushing valve is arranged between the pre-filter and the wastewater outlet, the first flushing valve and the second flushing valve being arranged in parallel with the third flushing valve.

[0012] Preferably, a waste water ratio element is further arranged between the reverse osmosis device and the waste water outlet, and the first, second and third flush valves are arranged in parallel with the waste water ratio element.

[0013] Preferably, the first water path further comprises a water inlet valve, a leakage protector, a first pressure sensor, a softening device, a first water quality meter and a first flow meter arranged in sequence between the water inlet and the pre-filter.

[0014] Preferably, the third water path further comprises a post-filter element, a second pressure sensor, a second water quality meter and a second flow meter arranged in sequence between the water outlet and the second interface.

[0015] Preferably, the reverse osmosis device comprises a first reverse osmosis filter element and a second reverse osmosis filter element arranged in parallel with each other, and a one-way valve and a third electromagnetic valve are arranged between the reverse osmosis device and the water tank.

[0016] Preferably, the first electromagnetic valve is a bidirectional valve.

[0017] Preferably, the water tank is provided with an ultraviolet sterilization lamp and a liquid level meter.

[0018] Compared with the prior art, the water purification device provided by the present application has the following beneficial effects:

[0019] The frequency conversion water supply can be realized, the water tank is directly supplied with water from the rear end of the ultrafiltration device through the fourth water path when the water level in the water tank is low, the flow of water used by the user is ensured, the service life of the filter element is prolonged, the pure water in the water tank is extracted to reversely flush the filter elements through the fourth water path, the filtering efficiency of the filter membrane is ensured, the replacement frequency is reduced, and the cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described in detail below in combination with the drawings and specific embodiments:

[0021] Figure 1 is a water path diagram of the water purification device of the present application;

[0022] Figure 2 is a water path diagram when the water purification device of the present application supplies water;

[0023] Figure 3 is a water path diagram when the water purification device of the present application flushes. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0025] In order to make the drawing simple, only the parts related to the present application are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one" situation.

[0026] It should be further understood that the term "and / or" used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0027] In this paper, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will describe the specific embodiments of the present application with reference to the drawings. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0030] Referring to Figure 1The utility model provides a kind of water purification equipment, comprising: first waterway L1, second waterway L2, third waterway L3 and fourth waterway L4.First waterway L1 includes water inlet 1, prefilter 2 and ultrafiltration equipment 3.Second waterway L2 includes reverse osmosis equipment 4, water tank 5, water supply pump 6 and second electromagnetic valve 7.Fourth waterway L4 includes first electromagnetic valve 8.Third waterway L3 includes water outlet 9.Raw water is stored in water tank 5 after being filtered in water inlet 1, prefilter 2, ultrafiltration equipment 3 and reverse osmosis equipment 4 in turn.Water supply pump 6 provides domestic water to user from water tank 5 to water outlet 9.

[0031] Referring to Figure 1 and Figure 2 , first interface 81 is equipped between ultrafiltration equipment 3 and reverse osmosis equipment 4, and second interface 82 is equipped between water tank 5 and water outlet 9.One end of fourth waterway L4 is connected with first interface 81, and the other end of fourth waterway L4 is connected with second interface 82.Water supply pump 6 and second electromagnetic valve 7 are arranged between water tank 5 and second interface 82.Water tank 5 is used to store pure water filtered by reverse osmosis equipment 4.Water in water tank 5 passes through water supply pump 6 and second electromagnetic valve 7 to second interface 82 in turn.Liquid level meter 51 and ultraviolet sterilization lamp 52 are arranged in water tank 5.

[0032] Referring to Figure 1 and Figure 3 , ultrafiltration equipment 3 is also connected with first flush valve 31, and first flush valve 31 is connected with waste water outlet 10.Waste water outlet 10 is used to discharge waste water after flushing filter core.Second flush valve 41 is arranged between reverse osmosis equipment 4 and waste water outlet 10.Third flush valve 21 is arranged between prefilter 2 and waste water outlet 10.First flush valve 31, second flush valve 41 and third flush valve 21 are arranged in parallel with each other.Waste water ratio element 44 is also arranged between reverse osmosis equipment 4 and waste water outlet 10, for adjusting waste water ratio of reverse osmosis equipment 4.Waste water ratio element 44, first flush valve 31, second flush valve 41 and third flush valve 21 are arranged in parallel with each other.Reverse osmosis equipment 4 includes first reverse osmosis filter core 42 and second reverse osmosis filter core 43 which are arranged in parallel with each other.Unidirectional valve 45 and third electromagnetic valve 46 are arranged between reverse osmosis equipment 4 and water tank 5 in turn.

[0033] Referring to Figure 2, the water inlet 1 and the pre-filter 2 are sequentially provided with a water inlet valve 11, a leakage protector 12, a first pressure sensor 13, a softening device 14, a first water quality measuring meter 15 and a first flow meter 16. The leakage protector 12 is used for detecting whether the water purification equipment leaks. The softening device 14 is used for softening the water quality of raw water. The second interface 82 and the water outlet 9 are sequentially provided with a second flow meter 91, a second water quality measuring meter 92, a second pressure sensor 93 and a post-filter element 94. The first water quality measuring meter 15 is used for detecting the water quality of raw water, and the second water quality measuring meter 92 is used for detecting the water quality of filtered water. In the embodiment, the post-filter element 94 is arranged as a carbon filter core.

[0034] When the water purification equipment supplies water, the raw water from the water inlet 1 sequentially passes through the water inlet valve 11, the softening device 14, enters the pre-filter 2 for filtration, then passes through the ultrafiltration device 3 for filtration, and then passes through the reverse osmosis device 4 for filtration to become pure water and is stored in the water tank 5. The water supply pump 6 pumps out the water in the water tank 5, and the water sequentially passes through the second electromagnetic valve 7 and the post-filter element 94 and flows out from the water outlet 9. The liquid level meter 51 detects the water level of the pure water in the water tank 5. When the liquid level in the water tank 5 is lowered and the water pressure is insufficient, in order to ensure the water use of the user, the first electromagnetic valve 8 is opened, the water filtered by the ultrafiltration device 3 directly reaches the second interface 82 through the first electromagnetic valve 8, and the water in the water tank 5 is used to supply water to the user.

[0035] In the embodiment, the second electromagnetic valve 7 is not powered on when the water level in the water tank 5 is high, the second electromagnetic valve 7 is always open, and the water in the water tank 5 can normally flow to the water outlet 9. When the water level in the water tank 5 is low, the second electromagnetic valve 7 is closed after being powered on, and the water in the water tank 5 cannot pass through the second electromagnetic valve 7. The water filtered by the ultrafiltration device 3 supplies water to the water outlet 9 through the fourth water path L4. The fourth water path L4 can realize variable frequency water supply of the water purification equipment, and provide pure water or direct drinking water for the user according to the supply and demand situation.

[0036] Referring to Figure 3 The first flushing valve 31, the second flushing valve 41 and the third flushing valve 21 are arranged to flush the filter membranes of the pre-filter 2, the ultrafiltration device 3 and the reverse osmosis device 4. When the first flushing valve 31 is opened, the filter membrane of the ultrafiltration device 3 is flushed, and then the waste water is discharged from the waste water outlet 10 through the first flushing valve 31. When the second flushing valve 41 is opened, the first reverse osmosis filter core 42 and the second reverse osmosis filter core 43 of the reverse osmosis device 4 are flushed, and then the waste water is discharged from the waste water outlet 10 through the second flushing valve 41. When the third flushing valve 21 is opened, the filter membrane of the pre-filter 2 is flushed, and then the waste water is discharged from the waste water outlet 10 through the third flushing valve 21.

[0037] The fourth water path L4 is further provided, and backwashing of the pre-filter 2 and the ultrafiltration equipment 3 and pure water washing of the reverse osmosis equipment 4 can be realized. After the first electromagnetic valve 8 is opened, the pure water in the water tank 5 is drawn out by the water supply pump 6 and reaches the first interface 81 through the second electromagnetic valve 7, the second interface 82 and the first electromagnetic valve 8. The pure water flows into the ultrafiltration equipment 3 from the first interface 81 to perform reverse washing, and the waste water reaches the waste water outlet 10 through the first washing valve 31. The pure water flows into the pre-filter 2 from the first interface 81 through the ultrafiltration equipment 3 to perform reverse washing, and the waste water reaches the waste water outlet 10 through the third washing valve 21.

[0038] The pure water flows into the reverse osmosis equipment 4 from the first interface 81 to perform pure water washing on the first reverse osmosis filter core 42 and the second reverse osmosis filter core 43, and the waste water reaches the waste water outlet 10 through the second washing valve 41. The one-way valve 45 is arranged to prevent the water filtered by the reverse osmosis equipment 4 from flowing back. During the washing process, the third electromagnetic valve 46 is closed to ensure that the water does not enter the water tank 5 when the filter core is washed. The fourth water path L4 is arranged in the utility model, the service life of the filter core of the pre-filter 2, the ultrafiltration equipment 3 and the reverse osmosis equipment 4 is prolonged, the filtering efficiency is ensured, and the utility model is convenient for household use.

[0039] It is obvious for those skilled in the art that various modifications and changes can be made to the above-mentioned exemplary embodiments of the utility model without departing from the spirit and scope of the utility model. Therefore, it is intended to cover the modifications and changes of the utility model falling within the scope of the appended claims and their equivalent technical solutions.

Claims

1. A water purification apparatus, characterized by comprising: The application relates to a water purifier. The first water path comprises a water inlet, a pre-filter and an ultrafiltration device, the pre-filter is arranged between the water inlet and the ultrafiltration device; The second water path comprises a reverse osmosis device and a water tank, the reverse osmosis device is arranged between the ultrafiltration device and the water tank; The third water path comprises a water outlet, the water outlet is connected with the water tank; The fourth water path comprises a first electromagnetic valve, a first interface is arranged between the ultrafiltration device and the reverse osmosis device, a second interface is arranged between the water outlet and the water tank, one end of the fourth water path is connected with the first interface, and the other end of the fourth water path is connected with the second interface.

2. The water purification apparatus of claim 1, wherein The second water path further comprises a water supply pump and a second electromagnetic valve which are arranged between the water tank and the second interface, and the water tank, the water supply pump, the second electromagnetic valve and the second interface are sequentially connected.

3. The water purification apparatus of claim 2, wherein The water purifier further comprises a waste water outlet, a first flushing valve and a second flushing valve, the first flushing valve is arranged between the ultrafiltration device and the waste water outlet, the second flushing valve is arranged between the reverse osmosis device and the waste water outlet, and the first flushing valve and the second flushing valve are arranged in parallel.

4. The water purification apparatus of claim 3, wherein A third flushing valve is arranged between the pre-filter and the waste water outlet, and the first flushing valve, the second flushing valve and the third flushing valve are arranged in parallel.

5. The water purification apparatus of claim 4, wherein A waste water ratio element is further arranged between the reverse osmosis device and the waste water outlet, and the first flushing valve, the second flushing valve and the third flushing valve are arranged in parallel with the waste water ratio element.

6. The water purification apparatus of claim 5, wherein The first water path further comprises a water inlet valve, a leakage protector, a first pressure sensor, a softening device, a first water quality measuring meter and a first flow meter which are sequentially arranged between the water inlet and the pre-filter.

7. The water purification apparatus of claim 6, wherein The third water path further comprises a post-filter element, a second pressure sensor, a second water quality measuring meter and a second flow meter which are sequentially arranged between the water outlet and the second interface.

8. The water purification apparatus of claim 7, wherein The reverse osmosis device comprises a first reverse osmosis filter element and a second reverse osmosis filter element which are arranged in parallel, and a one-way valve and a third electromagnetic valve are arranged between the reverse osmosis device and the water tank.

9. The water purification apparatus of claim 1, wherein, The first electromagnetic valve is a bidirectional valve.

10. The water purification apparatus of claim 1, wherein, An ultraviolet sterilization lamp and a liquid level meter are arranged in the water tank.

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