Water filtering system, water purifier and application

Abstract

The invention discloses a water filtering system, a water purifier and application, a filter element wrapped by a filter shell is arranged in a raw water tank of the water filtering system, two water pumps and a one-way backflow water path for balancing pressure between the two pumps are arranged in a water path, and the water filtering system is further provided with a water path temperature changing system for heating or refrigerating output filtered water; the invention further provides application of the water filtering system and a corresponding water purifier. According to the water filtering system provided by the invention, different pumps can be precisely matched through fine adjustment, so that the temperature control of a temperature changing system is more precise, the filter element can be flushed at any time, and the service life of the filter element is greatly prolonged due to the fact that the filter element is provided with the filter shell for isolation in a non-working state.

Description

Technical Field

[0001] The present application belongs to the field of water treatment technology, and specifically relates to a water filtration system, a water purifier and applications. Background Art

[0002] As a common water purification device for treating tap water, coarse filtration water purifier is mainly used to remove larger impurities in the water, such as mud, rust, suspended matter, etc., to perform preliminary treatment of the water. It is often used in areas with poor water quality as the first line of defense for household water use.

[0003] The relevant technology points out that some of the existing coarse filtration water purifiers on the market currently store water in a raw water tank and filter it through a filter element immersed in the raw water tank and supporting pipelines. This makes this type of coarse filtration water purifier have related problems such as a short filter element life.

[0004] Relevant technology also points out that some coarse-filtration water purifiers with heating function currently on the market will have problems such as poor water supply due to the difficulty in discharging bubbles in the water path when they continue to be used after the filter element is replaced.

[0005] Application Contents

[0006] The purpose of this application is to solve the deficiencies of the prior art and provide a water filtration system, a water purifier and applications, specifically adopting the following technical solutions:

[0007] In a first aspect, the present application provides a water filtration system, comprising:

[0008] A raw water tank, wherein a filter device is provided in the raw water tank, a first water pump is provided at the water outlet of the filter device, a negative pressure valve is provided at the water outlet of the first water pump, a second water pump is provided at the water outlet of the negative pressure valve, and a water circuit temperature changing device is provided at the water outlet of the second water pump;

[0009] A one-way return water circuit, which connects the pipeline between the first water pump and the negative pressure valve to the raw water tank;

[0010] A one-way valve is provided on the one-way return water circuit, and the one-way valve is used to input water into the raw water tank;

[0011] The filtering device comprises a filter element, and a filter housing is arranged outside the filter element;

[0012] The water circuit temperature changing system includes at least one of a heating component and a refrigeration component.

[0013] As some sub-solutions of the above technical solution, a thyristor is provided at the water outlet of the second water pump.

[0014] As some sub-solutions of the above technical solution, a flow meter is also provided at the water outlet of the second water pump.

[0015] As some sub-solutions of the above technical solution, a water level sensor is also provided in the raw water tank.

[0016] As some sub-solutions of the above technical solution, a contact switch is also provided at the bottom of the raw water tank.

[0017] As some sub-solutions of the above technical solution, a sterilization component is also provided at the water outlet of the refrigeration component.

[0018] As some sub-solutions of the above technical solution, a third water pump is also included, wherein the water inlet end of the third water pump is connected to the water outlet end of the negative pressure valve, and the water outlet end of the third water pump is connected to the water inlet end of the refrigeration component.

[0019] In a second aspect, the present application also provides an application of the above-mentioned water filtration system in a coarse filtration reflux heating system.

[0020] In a third aspect, the present application also provides an application of a water filtration system in a coarse filtration reflux cooling and heating system.

[0021] In a fourth aspect, the present application also provides a water purifier comprising the above-mentioned water filtration system.

[0022] The beneficial effects of the present application are as follows: the first water pump used to provide water for the filter component and the second water pump for supplying water to the temperature variable component are designed independently of each other, and at the same time cooperate with the negative pressure valve and the one-way return water circuit, which not only allows the different pumps to be precisely matched through fine-tuning, thereby making the temperature control of the temperature variable system more accurate, but also allows the filter element to be flushed at any time, and because the filter element is designed with a filter shell that is isolated when not in working state, the life of the filter element is greatly increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure shows a schematic diagram of the coarse filtration reflux heating system provided in Example 1;

[0024] Figure 2 The figure shows a schematic diagram of a coarse filtration reflux cooling and heating system provided in Example 2;

[0025] Figure 3 The figure shows a specific application diagram of the coarse filtration reflux heating system provided in Example 1 on a water purifier;

[0026] Figure 4 The figure shows a specific application diagram of the coarse filtration reflux cooling and heating system provided in Example 2 on a water purifier;

[0027] Legend: 101 raw water tank; 102 filter element; 103 water level sensor; 104 first water pump; 105 check valve; 106 negative pressure valve; 107 second water pump; 108 flow meter; 109 thyristor; 110 heating component

[0028] 201 contact switch; 202 third water pump; 203 refrigeration component; 204 sterilization component. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0030] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In the description of this application, the meaning of "several" is an indefinite quantity, the meaning of "multiple" is more than two, "greater than", "less than", "exceed", etc. are understood as not including the number itself, and "above", "below", "within", etc. are understood as including the number itself. If there is a description of the first and the second, it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. The "and / or" that appears in the full text represents three parallel solutions. For example, A and / or B represents the solution satisfied by A, the solution satisfied by B, or the solution satisfied by both A and B.

[0032] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0033] Example 1

[0034] Combination Figure 1 and Figure 3 Here, a water purification system provided by the present application, its specific application in a coarse filtration reflux heating system, and specific technical details of a water purifier including the system are described:

[0035] A raw water tank 101, wherein a filter device is provided in the raw water tank 101, a first water pump 104 is provided at the water outlet of the filter device, a negative pressure valve 106 is provided at the water outlet of the first water pump 104, a second water pump 107 is provided at the water outlet of the negative pressure valve 106, and a water circuit temperature changing device is provided at the water outlet of the second water pump 107;

[0036] A one-way return water path, which connects the pipeline between the first water pump 104 and the negative pressure valve 106 to the raw water tank 101;

[0037] A one-way valve 105 is provided on the one-way return water path, and the one-way valve 105 is used to input water into the raw water tank;

[0038] The filter device includes a filter element 102, and a filter housing is disposed outside the filter element 102;

[0039] The water channel temperature changing system is provided with a heating component 110 .

[0040] A water level sensor 103 is also provided in the raw water tank 101. In the present embodiment, the water level sensor 103 is a float-type water level sensor (in some other embodiments, various water level sensors including electronic water level sensors or other mechanical and optical water level sensors may also be used). The water level sensor 103 can determine the water level in the raw water tank 101. When the water level is lower than the water inlet of the filter element 102, an alarm may be issued to remind the user that the water volume is insufficient, and the power supply of the first water pump 104 may be cut off to prevent the first water pump 104 from completely evacuating the filter element 102, causing the filter element to be filled with gas and damaging the filter element.

[0041] Depend on Figure 1 and Figure 3 As shown, in this embodiment, the filter element 102 is located at the bottom of the raw water tank 101 and is connected to the raw water tank 101 through a threaded structure. A filter shell is attached to the outside of the filter element 102, and there is also a water inlet on the outside of the filter shell. The water inlet is also provided with a one-way water inlet device, so that when the filter element 102 filters the water in the raw water tank 101, the water in the raw water tank 101 can enter the filter element through the water inlet outside the filter shell and be filtered by the filter element 102. The filter shell is also provided with a water outlet, which can allow the filtered water in the filter element 102 to pass through the pipeline connected to the water outlet to the first water pump 104.

[0042] In this embodiment, the water inlet end of the first water pump 104 is connected to the water outlet of the filter element 102 through a pipeline. The first water pump 104 pumps water in the raw water tank 101 into the filter element 102 through the pipeline. The filter element 102 processes the raw water in the raw water tank 101 into filtered water, and then the filtered water flows into the first water pump 104 along the pipeline.

[0043] In this embodiment, the water outlet of the first water pump 104 is also connected to a three-way valve, the first water channel of the three-way valve is connected to a negative pressure valve 106, the water inlet end of the negative pressure valve 106 is connected to the water outlet end of the first water pump 104 through a pipeline, the water outlet end of the negative pressure valve is connected to the water inlet end of the second water pump 107 through a pipeline, and the second water pump 107 transports the filtered water obtained by the first water pump 104 to the heating component 110 through the pipeline. After heating by the heating component 110, heated filtered water can be obtained.

[0044] A one-way valve 105 is provided in the second water circuit (i.e., the one-way reflux water circuit) connected to the three-way valve linked to the water outlet end of the first water pump 104. The water outlet end of the one-way valve 105 is connected to the bottom of the raw water tank 101. In this embodiment, the one-way valve 105 can introduce the gas in the filtered water output by the first water pump 104 into the raw water tank, and can also balance the pressure of the water circuit between the first water pump 104 and the second water pump 107 to prevent excessive pipeline pressure.

[0045] In this embodiment, a flow meter 108 and a thyristor 109 are provided in sequence between the second water pump 107 and the heating assembly 110, wherein the flow meter 108 is used to read the flow rate in the pipeline, so that the water purification system provided by the present application can adjust the operating power of the first water pump 104 and the operating power of the second water pump 107 in the front section by the flow rate of the water in the pipeline here, thereby avoiding damage to the equipment caused by a large pressure difference;

[0046] On the other hand, the data provided by the flow meter 108 here can also be used to control the power of the subsequent heating component 110, so that the power of the heating component 110 is adjusted according to the water flow rate here, so as to obtain hot water of the set temperature.

[0047] In this embodiment, the negative pressure valve can replace the traditional water storage barrel to realize the automatic water supply and water cut-off functions, making the water purification system more concise and avoiding the space occupation and potential hygiene problems caused by the use of water storage barrels; not only that, the negative pressure valve can also ensure that the water purifier remains efficient and stable during operation by precisely controlling the water flow; at the same time, it can also avoid system failures caused by water pressure fluctuations or backflow.

[0048] In this embodiment, the water inlet and outlet ends of the heating component 110 are also provided with an inlet temperature sensor and an outlet temperature sensor respectively. The water purification system can control the operating power of the heating component 110 through the water temperature obtained by the inlet temperature sensor and the outlet temperature sensor.

[0049] In this embodiment, the thyristor 109 can automatically adjust the voltage of the heating component 110 according to the set temperature and water temperature in the heating system, and cooperate with the water inlet temperature sensor and the water outlet temperature sensor to achieve heat energy transfer under low power, thereby accurately controlling the water temperature.

[0050] In this embodiment, the above-mentioned water purification system also includes a backflow flushing function: when the filter element is connected, the first water pump 104 is started, the second water pump 107 is turned off, and the water in the raw water tank 101 flows back to the raw water tank 101 through the filter element, the first water pump 104 and the one-way backflow water channel, thereby flushing the filter element.

[0051] Example 2

[0052] Combination Figure 2 and Figure 4 Here, a water purification system provided by the present application, its specific application in a coarse filtration reflux cooling and heating system, and specific technical details of a water purifier including the system are described:

[0053] A raw water tank 101, wherein a filter device is provided in the raw water tank 101, a first water pump 104 is provided at the water outlet of the filter device, a negative pressure valve 106 is provided at the water outlet of the first water pump 104, a second water pump 107 is provided at the water outlet of the negative pressure valve 106, and a water circuit temperature changing device is provided at the water outlet of the second water pump 107;

[0054] A one-way return water path, which connects the pipeline between the first water pump 104 and the negative pressure valve 106 to the raw water tank 101;

[0055] A one-way valve 105 is provided on the one-way return water path, and the one-way valve 105 is used to input water into the raw water tank;

[0056] The filter device includes a filter element 102, and a filter housing is disposed outside the filter element 102;

[0057] The water circuit temperature changing system is provided with a heating component 110 and a cooling component 203;

[0058] A third water pump 202 is also provided, and a water outlet of the third water pump 202 is connected to the refrigeration assembly 203 .

[0059] A water level sensor 103 is also provided in the raw water tank 101. In the present embodiment, the water level sensor 103 is a float-type water level sensor (in some other embodiments, various water level sensors including electronic water level sensors or other mechanical and optical water level sensors may also be used). The water level sensor 103 can determine the water level in the raw water tank 101. When the water level is lower than the water inlet of the filter element 102, an alarm may be issued to remind the user that the water volume is insufficient, and the power supply of the first water pump 104 may be cut off to prevent the first water pump 104 from completely evacuating the filter element 102, causing the filter element to be filled with gas and damaging the filter element.

[0060] Depend on Figure 2 and Figure 4 As shown, in this embodiment, the filter element 102 is located at the bottom of the raw water tank 101 and is connected to the raw water tank 101 through a threaded structure. A filter shell is attached to the outside of the filter element 102, and there is also a water inlet on the outside of the filter shell. The water inlet is also provided with a one-way water inlet device, so that when the filter element 102 filters the water in the raw water tank 101, the water in the raw water tank 101 can enter the filter element through the water inlet outside the filter shell and be filtered by the filter element 102. The filter shell is also provided with a water outlet, which can allow the filtered water in the filter element 102 to pass through the pipeline connected to the water outlet to the first water pump 104.

[0061] In this embodiment, the water inlet end of the first water pump 104 is connected to the water outlet of the filter element 102 through a pipeline. The first water pump 104 pumps water in the raw water tank 101 into the filter element 102 through the pipeline. The filter element 102 processes the raw water in the raw water tank 101 into filtered water, and then the filtered water flows into the first water pump 104 along the pipeline.

[0062] In this embodiment, the water outlet of the first water pump 104 is also connected to a three-way valve, the first water channel of the three-way valve is connected to a negative pressure valve 106, the water inlet end of the negative pressure valve 106 is connected to the water outlet end of the first water pump 104 through a pipeline, the water outlet end of the negative pressure valve is connected to the water inlet end of the second water pump 107 through a pipeline, and the second water pump 107 transports the filtered water obtained by the first water pump 104 to the heating component 110 through the pipeline. After heating by the heating component 110, heated filtered water can be obtained.

[0063] A one-way valve 105 is provided in the second water circuit (i.e., the one-way reflux water circuit) connected to the three-way valve linked to the water outlet end of the first water pump 104. The water outlet end of the one-way valve 105 is connected to the bottom of the raw water tank 101. In this embodiment, the one-way valve 105 can introduce the gas in the filtered water output by the first water pump 104 into the raw water tank, and can also balance the pressure of the water circuit between the first water pump 104 and the second water pump 107 to prevent excessive pipeline pressure.

[0064] In this embodiment, a thyristor 109 and a flow meter 108 are provided in sequence between the second water pump 107 and the heating assembly 110, wherein the flow meter 108 is used to read the flow rate in the pipeline, so that the water purification system provided by the present application can adjust the operating power of the first water pump 104 and the operating power of the second water pump 107 in the front section by the flow rate of the water in the pipeline here, thereby avoiding damage to the equipment caused by a large pressure difference;

[0065] On the other hand, the data provided by the flow meter 108 here can also be used to control the power of the subsequent heating component 110, so that the power of the heating component 110 is adjusted according to the water flow rate here, so as to obtain hot water of the set temperature.

[0066] In this embodiment, the negative pressure valve can replace the traditional water storage barrel to realize the automatic water supply and water cut-off functions, making the water purification system more concise and avoiding the space occupation and potential hygiene problems caused by the use of water storage barrels; not only that, the negative pressure valve can also ensure that the water purifier remains efficient and stable during operation by precisely controlling the water flow; at the same time, it can also avoid system failures caused by water pressure fluctuations or backflow.

[0067] In this embodiment, the water inlet and outlet ends of the heating component 110 are also provided with an inlet temperature sensor and an outlet temperature sensor respectively. The water purification system can control the operating power of the heating component 110 through the water temperature obtained by the inlet temperature sensor and the outlet temperature sensor.

[0068] In this embodiment, the thyristor 109 can automatically adjust the voltage of the heating component 110 according to the set temperature and water temperature in the heating system, and cooperate with the water inlet temperature sensor and the water outlet temperature sensor to achieve heat energy transfer under low power, thereby accurately controlling the water temperature.

[0069] In this embodiment, the above-mentioned water purification system also includes a backflow flushing function: when the filter element is connected, the first water pump 104 is started, the second water pump 107 is turned off, and the water in the raw water tank 101 flows back to the raw water tank 101 through the filter element, the first water pump 104 and the one-way backflow water channel, thereby flushing the filter element.

[0070] In this embodiment, a three-way connection is provided at the water outlet of the negative pressure valve 106, so that the water inlet section of the third water pump 202 is connected to the water outlet of the negative pressure valve 106, thereby inputting the filtered water output by the first water pump 104 into the refrigeration component 203. A sterilization component 204 is also provided at the water outlet of the refrigeration component 203, and the water outlet of the sterilization component 204 is connected to the water outlet of the system.

[0071] In this embodiment, the refrigeration component 203 is an electronic ice container, and the sterilization component 204 is an ultraviolet sterilization component.

[0072] In this embodiment, a contact switch 201 is further provided at the bottom of the raw water tank 101 for detecting the water level and cutting off the power supply of the first water pump and the second water pump when the water level is too low.

[0073] Although the description of the present application has been quite detailed and specifically describes several described embodiments, it is not intended to be limited to any of these details or embodiments or any particular embodiment, but should be regarded as providing a broad possible interpretation of these claims by reference to the attached claims in view of the prior art, thereby effectively covering the intended scope of the present application. In addition, the above describes the present application with the embodiments foreseeable by the applicant, and those non-substantial changes to the present application that have not yet been foreseen may still represent equivalent changes to the present application.

Claims

1. A water filtration system, characterized in that: include: A raw water tank (101), wherein a filtering device is provided in the raw water tank (101), a first water pump (104) is provided at a water outlet of the filtering device, a negative pressure valve (106) is provided at a water outlet of the first water pump (104), a second water pump (107) is provided at a water outlet of the negative pressure valve (106), and a water channel temperature changing device is provided at a water outlet of the second water pump (107); a one-way return water path, the one-way return water path connecting the pipeline between the first water pump (104) and the negative pressure valve (106) to the raw water tank (101); A one-way valve (105) is provided on the one-way return water path, and the one-way valve (105) is used to input water into the raw water tank; The filtering device comprises a filter element (102), and a filter housing is disposed outside the filter element (102); The water circuit temperature changing system comprises at least one of a heating component (110) and a refrigeration component (203).

2. A water filtration system according to claim 1, characterized in that: A thyristor (109) is provided at the water outlet of the second water pump.

3. A water filtration system according to claim 2, characterized in that: A flow meter (108) is also provided at the water outlet of the second water pump (107).

4. A water filtration system according to claim 1, characterized in that: A water level sensor (103) is also provided in the raw water tank (101).

5. A water filtration system according to claim 1, characterized in that: A contact switch is also provided at the bottom of the raw water tank (101).

6. A water filtration system according to claim 1, characterized in that: A sterilization component (204) is also provided at the water outlet of the refrigeration component (203).

7. A water filtration system according to claim 1, characterized in that: It also includes a third water pump (202), the water inlet end of the third water pump (202) is connected to the water outlet end of the negative pressure valve (106), and the water outlet end of the third water pump (202) is connected to the water inlet end of the refrigeration component (203).

8. Application of a water filtration system in a coarse filtration reflux heating system, characterized in that: The water filtration system comprises the water filtration system according to claims 1-4.

9. Application of a water filtration system in a coarse filtration reflux cooling and heating system, characterized in that: The water filtration system comprises the water filtration system according to claims 1-7.

10. A water purifier, characterized in that: The water filtration system comprises the water filtration system according to any one of claims 1 to 7.

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