Waterway structure of water purifier and water purifier

Abstract

The utility model provides a water path structure of a water purifier and the water purifier. The waterway structure comprises a first filtering device, a second filtering device, a control valve and a central water softening device, wherein at least one of the first filtering device and the second filtering device is a hollow fiber membrane; a first water inlet and a first water outlet of the first filtering device are connected with the control valve; a second water inlet and a second water outlet of the second filtering device are connected with the control valve; a third water inlet of the central water softening device is connected with the control valve and is used for preparing soft water; the control valve is also connected with a raw water inlet pipeline and a purified water outlet pipeline, and the control valve is used for controlling the raw water to be filtered by the first filtering device and / or the second filtering device to obtain filtered water and controlling the filtered water to flow into the central water softening device and / or the purified water outlet pipeline. Through the first filtering device, the second filtering device and the control valve, the water path structure with the water purifying function and the water softening function is obtained, the water quality safety is guaranteed, and the service life of the filtering membrane is prolonged.

Description

Technical Field

[0001] The present disclosure relates to a water channel structure of a water purifier, and in particular to a water channel structure of a water purifier and a water purifier. Background Art

[0002] With the improvement of people's living standards and the demand for high-quality whole-house water purification systems, the usual whole-house water purification needs to have the functions of both a central water purifier and a central water softener. However, under the background of high housing prices, kitchen space is also very valuable. Installing both a central water purifier and a central water softener in the kitchen will occupy a large area and increase the cost of use. However, installing only a central water purifier or a central water softener will be difficult to meet the water needs of users. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defects in the prior art that the whole-house water purification system occupies too large an area and the water purification function cannot meet the needs of users, and to provide a water channel structure and a water purifier.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] In a first aspect, a water channel structure of a water purifier is provided, comprising a first filter device, a second filter device, a control valve and a central water softening device, wherein at least one of the first filter device and the second filter device comprises a hollow fiber membrane;

[0006] The first water inlet and the first water outlet of the first filter device are connected to the control valve;

[0007] The second water inlet and the second water outlet of the second filtering device are connected to the control valve;

[0008] The third water inlet of the central water softening device is connected to the control valve and is used for preparing soft water;

[0009] The control valve is also connected to the raw water inlet pipeline and the clean water outlet pipeline. The control valve is used to control the raw water to be filtered through the first filtering device and / or the second filtering device to obtain filtered water, and to control the filtered water to flow into the central softening device and / or the clean water outlet pipeline.

[0010] Preferably, the first sewage outlet of the first filter device is connected to the control valve via a first sewage pipeline;

[0011] The second sewage outlet of the second filter device is connected to the control valve via a second sewage pipeline;

[0012] The control valve is also connected to the main sewage discharge line, and the control valve is also used to discharge sewage from the first sewage discharge outlet and the second sewage discharge outlet into the main sewage discharge line.

[0013] Preferably, a flushing pipeline is provided between the control valve, the first filter device and the second filter device;

[0014] The control valve is also used to control the on / off and direction of the water flow in the flushing pipeline.

[0015] Preferably, a precision filter is provided on the raw water inlet pipeline;

[0016] The precision filter is used for coarse filtering of raw water.

[0017] Preferably, the precision filter is connected to a secondary sewage discharge pipeline.

[0018] Preferably, the precision filter comprises a driving motor;

[0019] The driving motor is used to drive the water flow direction of the precision filter.

[0020] Preferably, a one-way valve is provided on the secondary sewage discharge pipeline.

[0021] Preferably, the central water softening device includes a softening resin filter element and a KDF (Kinetic Degradation Fluxion, copper-zinc alloy filter material) filter element.

[0022] Preferably, at least one of the first filter device and the second filter device is an internal pressure hollow fiber membrane.

[0023] In a second aspect, a water purifier is provided, comprising the water channel structure of the water purifier described in the first aspect.

[0024] The positive progressive effect of the present disclosure is that a filtering water path is formed before the water enters the central water purification device through the first filtering device, the second filtering device and the control valve, so that a water path structure with both water purification and water softening functions is obtained, and the raw water is flexibly controlled by the control valve to flush the first filtering device and the second filtering device, thereby ensuring water quality safety and increasing the service life of the filter membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the water channel structure of the water purifier of Example 1 of the present disclosure.

[0026] Description of Reference Numerals

[0027] Control valve 10

[0028] Raw water inlet pipeline 11

[0029] Purified water outlet pipe 12

[0030] Sewage main line 13

[0031] The first filter device 20

[0032] First water inlet pipe 21

[0033] First water outlet pipe 22

[0034] First sewage pipeline 23

[0035] Second filter device 30

[0036] Second water inlet pipeline 31

[0037] Second water outlet pipe 32

[0038] Second sewage pipeline 33

[0039] Precision filter 40

[0040] Drive motor 41

[0041] Check valve 42

[0042] Secondary sewage pipeline 43

[0043] Central water softener 50

[0044] Soft water outlet pipe 51

[0045] Drain pipe 52 DETAILED DESCRIPTION

[0046] The present disclosure is further described below by way of examples, but the present disclosure is not limited to the scope of the examples.

[0047] Example 1

[0048] This embodiment provides a water channel structure of a water purifier, such as Figure 1 As shown, it includes a first filtering device 20, a second filtering device 30, a control valve 10 and a central water softening device, and at least one of the first filtering device 20 and the second filtering device 30 includes a hollow fiber membrane;

[0049] The first water inlet and the first water outlet of the first filtering device 20 are connected to the control valve 10;

[0050] The second water inlet and the second water outlet of the second filtering device 30 are connected to the control valve 10;

[0051] The third water inlet of the central water softening device is connected to the control valve 10 for preparing soft water;

[0052] The control valve 10 is also connected to the raw water inlet pipeline 11 and the clean water outlet pipeline 12. The control valve 10 is used to control the raw water to be filtered through the first filtering device 20 and / or the second filtering device 30 to obtain filtered water, and control the filtered water to flow into the central softening device and / or the clean water outlet pipeline 12.

[0053] In the present solution, a water purification waterway structure for raw water is formed by the first filtering device 20 and / or the second filtering device 30, and the filtered raw water is used as the inlet water of the central softening device by the control valve 10 to prepare the soft water required by the user, so that the waterway structure can simultaneously meet the user's needs for preparing purified water and soft water, and simplify the waterway structure of the water purification part, reduce the overall occupied area of ​​the waterway structure of the water purifier, and reduce the installation cost.

[0054] As an achievable manner, the first sewage outlet of the first filter device 20 is connected to the control valve 10 via a first sewage pipeline 23;

[0055] The second sewage outlet of the second filter device 30 is connected to the control valve 10 via a second sewage pipeline 33;

[0056] The control valve 10 is also connected to a main sewage discharge line 13 , and the control valve 10 is also used to discharge sewage from the first sewage discharge outlet and the second sewage discharge outlet into the main sewage discharge line 13 .

[0057] In this solution, the control valve 10 is used to open the first water inlet pipe 21 and the first water outlet pipe 22 of the first filter device 20, the second water inlet pipe 31 and the second water outlet pipe 32 of the second filter device 30, and the raw water inlet pipe 11 and the purified water outlet pipe 12 to control the water inlet and outlet of the raw water, so as to form a simple filtration water circuit with a single filtration device of the first filter device 20 or the second filter device 30. In the simple filtration water circuit, the raw water is only prepared by the first filter device 20 or the second filter device 30 to prepare purified water, and one of the filter devices is used as a backup filtration device for the other filter device. While meeting the filtering needs, the stability of the water path filtering function is guaranteed; or, a composite filtering water path composed of a first filtering device 20 and a second filtering device 30 is used as a composite filtering water path of multiple filtering devices. In the composite filtering water path, the raw water can be divided into two paths and the first filtering device 20 or the second filtering device 30 can be used to prepare purified water at the same time, or it can be filtered multiple times by the first filtering device 20 and then by the second filtering device 30 to prepare high-purity purified water, which can increase the filtering capacity of the water path to meet the filtering needs of users. At the same time, in the case of multiple filtering devices, a number of additional filtering devices can be used as spares to improve the stability of the water path filtering function.

[0058] As an achievable manner, a flushing pipeline is provided between the control valve 10, the first filter device 20 and the second filter device 30;

[0059] The control valve 10 is also used to control the on / off and direction of the water flow in the flushing pipeline.

[0060] In this solution, the first water inlet pipeline 21 and the first water outlet pipeline 22 of the first filter device 20 are connected to the second water inlet pipeline 31 and the second water outlet pipeline 32 of the second filter device 30 based on the control valve 10, so as to form the flushing pipelines of the first filter device 20 and the second filter device 30. One end of the first water inlet pipeline 21 of the first filter device 20 can be connected to the first water inlet of the first filter device 20 or the first flushing port of the first filter device, and the other end is connected to the control valve 10; one end of the first water outlet pipeline 22 can be connected to the first water outlet of the first filter device 20 or the second flushing port of the first filter device, and the other end is connected to the control valve 10; the second water inlet pipeline 31 of the second filter device 30 can be connected to the second water inlet of the second filter device 30 or the third flushing port of the second filter device, and the other end is connected to the control valve 10; the second water outlet pipeline 32 can be connected to the second water outlet of the second filter device 30 or the fourth flushing port of the second filter device, and the other end is connected to the control valve 10.

[0061] By opening the first water inlet pipe 21, the first water outlet pipe 22, the first sewage pipe 23 of the first filter device 20, the second water inlet pipe 31, the second water outlet pipe 32 and the second sewage pipe 33 of the second filter device 30 through the control valve 10, and controlling the raw water inlet pipe 11 and the main drainage pipe, the first filter device 20 or the second filter device 30 is flushed or backwashed with raw water according to the order of opening the water inlet pipe and the water outlet pipe of the filter device through the control valve 10.

[0062] Alternatively, the first filter device 20 and the second filter device 30 are connected by the control valve 10, and the first filter device 20 and the second filter device 30 are mutually flushed or backwashed. The flushed wastewater is discharged from the first sewage pipe 23 and the second sewage pipe 33 through the control valve 10 from the sewage main pipe. By flushing the first filter device 20 and the second filter device 30, the service life of the first filter device 20 and the second filter device 30 is increased.

[0063] As a feasible method, a precision filter 40 is provided on the raw water inlet pipeline 11;

[0064] The precision filter 40 is used for roughly filtering the raw water.

[0065] In this solution, large particle impurities in the raw water are coarsely filtered through a precision filter 40 set on the raw water inlet pipeline 11. The filtering accuracy of the precision filter 40 can be 40-50μm to increase the service life of the first filter device 20 and the second filter device 30.

[0066] As a feasible approach, the precision filter 40 is connected to a secondary sewage discharge pipeline 43 .

[0067] In this solution, by connecting to the secondary sewage pipe 43 , a flushing water path for the precision filter 40 is formed, so that the precision filter 40 is flushed regularly, and the waste water after flushing is discharged through the secondary sewage pipe 43 .

[0068] As an achievable manner, the precision filter 40 includes a driving motor 41;

[0069] The driving motor 41 is used to drive the water flow direction of the precision filter 40 .

[0070] In this solution, the driving motor 41 of the precision filter 40 can drive the cleaning brush of the precision filter 40 to rotate forward or reverse, clean the outer surface of the precision filter 40, flush the precision filter 40, and improve the filtering efficiency and service life of the precision filter 40.

[0071] As a feasible manner, a one-way valve 42 is provided on the secondary sewage discharge pipeline 43 .

[0072] In this solution, a one-way valve 42 is provided in the secondary sewage pipe 43 to prevent the drainage pressure of the precision filter 40 from being too high, causing the sewage to flow back into the precision filter 40 and damage the precision filter 40 .

[0073] As an achievable manner, the central water softening device includes a softening resin filter element and a KDF filter element.

[0074] In this solution, the central water softening device uses a softening resin filter element to exchange hardness components in raw water or purified water, such as calcium ions or magnesium ions, with functional ions on the resin to soften the water and prevent the formation of scale; the KDF filter element removes alternation, impurities, rust and fine particulate matter in raw water or purified water, and removes residual chlorine and odor in the water. The water treatment effect of the central water softening device is improved to meet the demand for soft water in areas with high water hardness.

[0075] As an achievable manner, at least one of the first filter device 20 and the second filter device 30 is an internal pressure type hollow fiber membrane.

[0076] In this solution, the internal pressure hollow fiber membrane is utilized to provide a larger effective membrane area per unit volume, thereby reducing the occupied area of ​​the filtration device to meet the user's requirements for the occupied area and filtration efficiency of the waterway structure.

[0077] As a feasible manner, both the first filter device 20 and the second filter device 30 are internal pressure hollow fiber membranes.

[0078] In this solution, internal pressure hollow fiber membranes are used throughout to minimize the footprint of the waterway structure and provide the highest possible filtration efficiency.

[0079] The working mode of the waterway structure in this embodiment is explained in detail below through specific implementation methods:

[0080] When powered on for the first time, the raw water inlet pipe 11 is opened through the control valve 10, and the raw water enters the first filter device 20 and the second filter device 30 through the control valve 10, and the filtered clean water flows out from the first outlet pipe 22 of the first filter device 20 and the second outlet pipe 32 of the second filter device 30. After the clean water flows into the control valve 10, the control valve 10 divides the clean water into two paths, one of which flows out from the clean water outlet pipe 12; the other path introduces the clean water into the central water softening device through the control valve 10, and the soft water is prepared by the central water softening device, and the soft water flows out from the soft water outlet pipe 51.

[0081] During the purified water output process, when the user needs purified water, the control valve 10 is in a normally open state. The user only needs to turn on any water outlet device for domestic water, and the raw water in the raw water inlet pipeline 11 passes through the control valve 10 into the first filter device 20 and the second filter device 30. The first filter device 20 and the second filter device 30 can output the filtered purified water to the corresponding domestic water outlet device.

[0082] During the regeneration process of the central water softener 50, the first filter device 20 and the second filter device 30 transmit the filtered purified water to the central water softener 50 through the control valve 10 for regeneration. When the user needs soft water, the control valve 10 controls the purified water to flow into the central water softener, and flows out from the soft water outlet pipe 51 to provide soft water to the user, or is discharged from the drain pipe 52.

[0083] During the positive flushing process of the first filter device 20 and the second filter device 30, raw water enters the first filter device 20 and the second filter device 30 through the control valve 10, that is, the raw water enters the first filter device 20 and the second filter device 30 from the first water inlet pipe 21 of the first filter device 20 and the second water inlet pipe 31 of the second filter device 30, the control valve 10 closes the first water outlet pipe 22 of the first filter device 20 and the second water outlet pipe 32 of the second filter device 30, and opens the first sewage pipe 23 of the first filter device 20 and the second sewage pipe 33 of the second filter device 30, the raw water will quickly enter the first filter device 20 and the second filter device 30, flush the inner surface of the hollow membrane fibers of the first filter device 20 and the second filter device 30, and discharge the pollutants on the inner surface through the first sewage pipe 23 and the second sewage pipe 33, the control valve 10 opens the main sewage pipe to discharge the sewage of the first sewage pipe 23 and the second sewage pipe 33.

[0084] During the backwashing process of the first filter device 20 and the second filter device 30, two filter devices are preset in the water circuit, and two backwashing operations are required. If there are more than two filter devices preset in the water circuit, the number of backwashing operations should be increased according to the actual situation.

[0085] After being filtered by the precision filter 40, the raw water enters the first filter device 20 and the second filter device 30 from the control valve 10, the second water inlet pipe 31 and the second water outlet pipe 32 of the second filter device 30 are opened, and the second sewage pipe 33 is closed. The clean water filtered by the second filter device 30 will flow to the first water outlet pipe 22 of the first filter device 20 through the control valve 10, the first sewage pipe 23 of the first filter device 20 is opened, and the first water inlet pipe 21 is closed, so that the outer surface of the filter membrane in the first filter device 20 is reversely flushed by the clean water. Similarly, the same backwashing process is performed on the second filter device 30, that is, the first water inlet pipe 21 and the first water outlet pipe 22 of the first filter device 20 are opened, and the first sewage pipe 23 is closed. The clean water filtered by the first filter device 20 will flow to the second water outlet pipe 32 of the second filter device 30 through the control valve 10, the second sewage pipe 33 of the second filter device 30 is opened, and the second water inlet pipe 31 is closed, so that the outer surface of the filter membrane in the second filter device 30 is backwashed by the clean water.

[0086] The above-mentioned backwashing time can be set according to the local water quality and specific usage conditions.

[0087] During the flushing process of the precision filter 40, the cleaning brush of the precision filter 40 is driven by the driving motor 41 to rotate forward and reversely to clean the outer surface of the precision filter. At the same time, the water path switch inside the precision filter 40 is controlled to flush the precision filter 40 with raw water after the cleaning is completed, and the waste water is discharged from the secondary sewage pipe 43.

[0088] The water path structure of the water purifier provided in this embodiment forms a filtering water path before the water enters the central water purification device through the first filtering device, the second filtering device and the control valve, thereby obtaining a water path structure with both water purification and water softening functions. The control valve can be used to flexibly control the raw water to flush the first filtering device and the second filtering device, thereby ensuring water quality safety and increasing the service life of the filter membrane.

[0089] Example 2

[0090] This embodiment provides a water purifier, which includes the water channel structure of the water purifier described in Example 1.

[0091] The water purifier provided in this embodiment forms a filtering water path before water enters the central water purification device through the first filtering device, the second filtering device and the control valve in the water path structure, thereby obtaining a water path structure with both water purification and water softening functions.

[0092] Although the specific embodiments of the present disclosure are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present disclosure is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present disclosure, but these changes and modifications all fall within the protection scope of the present disclosure.

Claims

1. A water channel structure of a water purifier, characterized in that: It includes a first filter device, a second filter device, a control valve and a central water softening device, wherein at least one of the first filter device and the second filter device includes a hollow fiber membrane; The first water inlet and the first water outlet of the first filter device are connected to the control valve; The second water inlet and the second water outlet of the second filtering device are connected to the control valve; The third water inlet of the central water softening device is connected to the control valve and is used for preparing soft water; The control valve is also connected to the raw water inlet pipeline and the clean water outlet pipeline. The control valve is used to control the raw water to be filtered through the first filtering device and / or the second filtering device to obtain filtered water, and to control the filtered water to flow into the central softening device and / or the clean water outlet pipeline.

2. The water channel structure of the water purifier according to claim 1, characterized in that: The first sewage outlet of the first filter device is connected to the control valve via a first sewage pipeline; The second sewage outlet of the second filter device is connected to the control valve via a second sewage pipeline; The control valve is also connected to the main sewage discharge line, and the control valve is also used to discharge sewage from the first sewage discharge outlet and the second sewage discharge outlet into the main sewage discharge line.

3. The water channel structure of the water purifier according to claim 2, characterized in that: A flushing pipeline is provided between the control valve, the first filter device and the second filter device; The control valve is also used to control the on / off and direction of the water flow in the flushing pipeline.

4. The water channel structure of the water purifier according to claim 1, characterized in that: A precision filter is provided on the raw water inlet pipeline; The precision filter is used for coarse filtering of raw water.

5. The water channel structure of the water purifier according to claim 4, characterized in that: The precision filter is connected with a secondary sewage discharge pipeline.

6. The water channel structure of the water purifier according to claim 5, characterized in that: The precision filter includes a driving motor; The driving motor is used to drive the water flow direction of the precision filter.

7. The water channel structure of the water purifier according to claim 6, characterized in that: A one-way valve is arranged on the secondary sewage discharge pipeline.

8. The water channel structure of the water purifier according to any one of claims 1 to 7, characterized in that: The central water softening device comprises a softening resin filter element and a KDF filter element.

9. The water channel structure of the water purifier according to any one of claims 1 to 7, characterized in that: At least one of the first filter device and the second filter device is an internal pressure type hollow fiber membrane.

10. A water purifier, characterized in that: The water purifier comprises the water channel structure of the water purifier according to any one of claims 1-9.

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