Water filtering system, water purifier and application thereof

Abstract

The application discloses a water filtering system, a water purifier and application, wherein a filter core 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 a water path temperature changing system is further arranged in the water filtering system and used for heating or refrigerating filtered water output; the application further provides application of the water filtering system and a corresponding water purifier. The water filtering system provided by the application not only enables different pumps to be precisely matched through fine adjustment, thereby making temperature control of the temperature changing system more accurate, but also enables the filter core to be flushed at any time, and since the filter core is designed with the filter shell for isolation in a non-working state, the service life of the filter core is greatly increased.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of water treatment, and particularly relates to a water filtration system, a water purifier and application. BACKGROUND

[0002] The coarse filtration water purifier is a common water purifier for treating tap water, and is mainly used for removing larger impurities in water, such as silt, rust, suspended solids and the like, and plays a role in the preliminary treatment of water, and is commonly used in areas with poor water quality as the first line of defense for household water.

[0003] The related art indicates that some coarse filtration water purifiers currently available on the market store water in a raw water tank, filter through a filter element soaked in the raw water tank, and filter through a matching pipeline, which causes the coarse filtration water purifier to have problems such as short filter element life.

[0004] The related art further indicates that some coarse filtration water purifiers currently available on the market have a heating function, and when the filter element is replaced and continues to be used, the water supply is not smooth due to the difficulty in discharging air bubbles in the waterway. SUMMARY

[0005] The purpose of the present application is to solve the problems of the prior art, and to provide a water filtration system, a water purifier and application, which specifically adopts the following technical solutions:

[0006] In a first aspect, the present application provides a water filtration system, comprising:

[0007] A raw water tank, the raw water tank is provided with a filter device, a first water pump is arranged at the water outlet end of the filter device, a negative pressure valve is arranged at the water outlet end of the first water pump, a second water pump is arranged at the water outlet end of the negative pressure valve, and a waterway temperature changing device is arranged at the water outlet end of the second water pump;

[0008] A one-way backflow waterway, the one-way backflow waterway connects the pipeline between the first water pump and the negative pressure valve with the raw water tank;

[0009] A one-way valve is arranged on the one-way backflow waterway, and the one-way valve is used for inputting water into the raw water tank;

[0010] The filter device comprises a filter element, and a filter shell is arranged outside the filter element;

[0011] The waterway temperature changing system comprises at least one of a heating assembly and a refrigeration assembly.

[0012] As some sub-solutions of the above technical solutions, the water outlet end of the second water pump is provided with a silicon controlled rectifier.

[0013] As some sub-solutions of the above technical solutions, the water outlet end of the second water pump is further provided with a flowmeter.

[0014] As some sub-schemes of the above technical solution, the raw water tank is further provided with a water level sensor.

[0015] As some sub-schemes of the above technical solution, the bottom of the raw water tank is further provided with a contact switch.

[0016] As some sub-schemes of the above technical solution, the water outlet end of the refrigeration assembly is further provided with a sterilization assembly.

[0017] As some sub-schemes of the above technical solution, the water filter system further comprises a third water pump, the water inlet end of the third water pump is connected with the water outlet end of the negative pressure valve, and the water outlet end of the third water pump is connected with the water inlet end of the refrigeration assembly.

[0018] In the second aspect, the application further provides an application of the water filter system in a coarse filtration reflux heating system.

[0019] In the third aspect, the application further provides an application of the water filter system in a coarse filtration reflux cooling system,

[0020] In the fourth aspect, the application further provides a water purifier comprising the water filter system.

[0021] The application has the beneficial effect that the first water pump for providing water for the filter assembly and the second water pump for providing water for the temperature changing assembly are independently designed, and are matched with the negative pressure valve and the one-way reflux water path, so that different pumps can be precisely matched through fine adjustment, the temperature control of the temperature changing system is more accurate, the filter core can be flushed at any time, and the service life of the filter core is greatly increased due to the filter shell for isolating the filter core in a non-working state. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Fig. 1 shows a schematic diagram of a coarse filtration reflux heating system provided by embodiment 1;

[0023] Figure 2 Fig. 2 shows a schematic diagram of a coarse filtration reflux cooling system provided by embodiment 2;

[0024] Figure 3 Fig. 3 shows a specific application schematic diagram of the coarse filtration reflux heating system provided by embodiment 1 on a water purifier;

[0025] Figure 4 Fig. 4 shows a specific application schematic diagram of the coarse filtration reflux cooling system provided by embodiment 2 on a water purifier;

[0026] Legend: 101 raw water tank; 102 filter core; 103 water level sensor; 104 first water pump; 105 one-way valve; 106 negative pressure valve; 107 second water pump; 108 flow meter; 109 controllable silicon; 110 heating assembly

[0027] 201 contact switch; 202 third water pump; 203 refrigeration assembly; 204 sterilization assembly. DETAILED DESCRIPTION

[0028] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0029] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the purpose of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0030] In the description of the present application, the meaning of several is not quantitative, the meaning of multiple is two or more, greater than, less than, more than, etc. is understood as not including the number, above, below, etc. is understood as including the number. If it is described that the first, the second is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of indicated technical features. And / or appearing throughout the text means three parallel schemes, for example, A and / or B means A satisfying scheme, B satisfying scheme or A and B satisfying scheme.

[0031] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0032] Embodiment 1

[0033] In combination Figure 1 And Figure 3 Here, the specific technical details of a water purification system provided by the present application, its specific application in the coarse filtration reflux heating system, and the water purifier comprising the system are described:

[0034] The raw water tank 101 is provided with a filter device, the filter device is provided with a first water pump 104 at the water outlet end, the first water pump 104 is provided with a negative pressure valve 106 at the water outlet end, the negative pressure valve 106 is provided with a second water pump 107 at the water outlet end, and the second water pump 107 is provided with a waterway temperature changing device at the water outlet end;

[0035] The one-way backflow water path connects a pipeline between the first water pump 104 and the negative pressure valve 106 with the raw water tank 101;

[0036] The one-way backflow water path is provided with a one-way valve 105, which is used for inputting water into the raw water tank;

[0037] The filtering device comprises a filter core 102, and an outer filter shell is arranged outside the filter core 102.

[0038] The water path temperature changing system is provided with a heating assembly 110.

[0039] The water level sensor 103 is further arranged in the raw water tank 101, and in the embodiment, the water level sensor 103 is a float type water level sensor (in some other embodiments, various water level sensors such as an electronic water level sensor or other mechanical type, optical type water level sensors can also be used), which can determine the water level height in the raw water tank 101, and when the water level is lower than the water inlet of the filter core 102, an alarm can be sent to the user to prompt the user that the water amount is insufficient, and the power supply of the first water pump 104 is cut off, so as to prevent the first water pump 104 from completely emptying the filter core 102, causing the filter core to be filled with gas and damaged.

[0040] As shown in Figure 1 and Figure 3 In the embodiment, the filter core 102 is located at the bottom of the raw water tank 101 and is connected with the raw water tank 101 through a threaded structure, an outer filter shell is attached to the filter core 102, and an outer water inlet is further arranged outside the filter shell, and the water inlet is further provided with a one-way water inlet device, so that when the filter core 102 filters the water in the raw water tank 101, the water in the raw water tank 101 can enter the filter core through the water inlet outside the filter shell and be filtered by the filter core 102, the filter shell is further provided with a water outlet, and the water outlet can make the filtered water in the filter core 102 pass through the pipeline connected with the water outlet to the first water pump 104.

[0041] In the embodiment, the water inlet end of the first water pump 104 is connected with the water outlet of the filter core 102 through a pipeline, the first water pump 104 draws the water in the raw water tank 101 into the filter core 102, the filter core 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;

[0042] In the embodiment, the water outlet end of the first water pump 104 is further connected with a three-way valve, the first water path of the three-way valve is connected with the negative pressure valve 106, the water inlet end of the negative pressure valve 106 is connected with the water outlet end of the first water pump 104 through a pipeline, the water outlet end of the negative pressure valve is connected with the water inlet end of the second water pump 107 through a pipeline, the second water pump 107 delivers the filtered water obtained through the first water pump 104 to the heating assembly 110, and the filtered water is heated through the heating assembly 110, so that the heated filtered water is obtained.

[0043] The second water path connected to the three-way valve linked to the outlet end of the first water pump 104 (i.e. the one-way backflow water path) is provided with a one-way valve 105, the outlet end of which is connected to the bottom of the raw water tank 101. In this embodiment, the one-way valve 105 can guide 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 path between the first water pump 104 and the second water pump 107, preventing excessive pipeline pressure.

[0044] In this embodiment, a flow meter 108 and a thyristor 109 are further provided between the second water pump 107 and the heating assembly 110. 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 through the flow rate of water in the pipeline, thereby avoiding damage to the equipment caused by a large pressure difference.

[0045] On the other hand, the data provided by the flow meter 108 can also be used to control the power of the subsequent heating assembly 110, so that the power of the heating assembly 110 is adjusted according to the water flow rate, thereby obtaining hot water at the set temperature.

[0046] In this embodiment, the negative pressure valve can replace the traditional water storage bucket to realize automatic water supply and water cut-off function, making the water purification system more simple, avoiding the space occupation and potential health problems caused by the use of the water storage bucket. Furthermore, the negative pressure valve can also control the water flow accurately to ensure that the water purifier remains efficient and stable during operation. At the same time, it can also avoid system failure caused by water pressure fluctuation or backflow.

[0047] In this embodiment, the inlet end and the outlet end of the heating assembly 110 are further provided with an inlet water temperature sensor and an outlet water temperature sensor, respectively. The water purification system can control the operating power of the heating assembly 110 through the water temperature obtained by the inlet water temperature sensor and the outlet water temperature sensor.

[0048] In this embodiment, the thyristor 109 can automatically adjust the voltage of the heating assembly 110 in the heating system according to the set temperature and water temperature, and cooperate with the inlet water temperature sensor and the outlet water temperature sensor to realize heat transfer at low power, thereby accurately controlling the water temperature.

[0049] In this embodiment, the above-mentioned water purification system further includes a backflow flushing function: when the filter element is connected, the first water pump 104 is started and the second water pump 107 is closed. 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 path, thereby realizing flushing of the filter element.

[0050] Embodiment 2

[0051] Combination Figure 2 and Figure 4 Hereinafter, a water purification system provided by the present application, its specific application in a coarse filtration backflow cold and hot system, and the specific technical details of a water purifier comprising the system are described:

[0052] The raw water tank 101 is provided with a filter device, the water outlet end of the filter device is provided with a first water pump 104, the water outlet end of the first water pump 104 is provided with a negative pressure valve 106, the water outlet end of the negative pressure valve 106 is provided with a second water pump 107, and the water outlet end of the second water pump 107 is provided with a water path temperature changing device;

[0053] The one-way backflow water path connects the pipeline between the first water pump 104 and the negative pressure valve 106 to the raw water tank 101;

[0054] The one-way backflow water path is provided with a one-way valve 105, which is used to input water into the raw water tank;

[0055] The filter device comprises a filter core 102, and the filter core 102 is externally provided with a filter shell;

[0056] The water path temperature changing system is provided with a heating assembly 110 and a refrigeration assembly 203;

[0057] A third water pump 202 is further provided, and the water outlet end of the third water pump 202 is connected to the refrigeration assembly 203.

[0058] A water level sensor 103 is further provided in the raw water tank 101, in this embodiment, the water level sensor 103 is a float type water level sensor (in some other embodiments, various water level sensors such as electronic water level sensors or other mechanical type, optical type water level sensors can also be used), the water level sensor 103 can determine the water level height in the raw water tank 101, when the water level is lower than the water inlet of the filter core 102, an alarm can be sent to the user to prompt the user that the water amount is insufficient, and the power supply of the first water pump 104 is cut off to prevent the first water pump 104 from completely emptying the filter core 102, causing the filter core to be filled with gas and damaged.

[0059] As shown in Figure 2 and Figure 4 In this embodiment, the filter core 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, the filter core 102 is externally attached with a filter shell, the filter shell is externally provided with a water inlet, and the water inlet is further provided with a one-way water inlet device, so that when the filter core 102 filters the water in the raw water tank 101, the water in the raw water tank 101 can enter the filter core through the water inlet outside the filter shell and be filtered by the filter core 102, the filter shell is further provided with a water outlet, and the water outlet can make the filtered water in the filter core 102 pass through the pipeline connected to the water outlet to the first water pump 104.

[0060] In the embodiment, the water inlet end of the first water pump 104 is connected with the water outlet of the filter core 102 through a pipeline, the first water pump 104 draws the water in the raw water tank 101 into the filter core 102 through the pipeline, the filter core 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;

[0061] In the embodiment, the water outlet end of the first water pump 104 is also connected with a three-way valve, the first water path of the three-way valve is connected with the negative pressure valve 106, the water inlet end of the negative pressure valve 106 is connected with the water outlet end of the first water pump 104 through a pipeline, the water outlet end of the negative pressure valve is connected with the water inlet end of the second water pump 107 through a pipeline, the second water pump 107 delivers the filtered water obtained through the first water pump 104 to the heating assembly 110 through a pipeline, and the filtered water is heated through the heating assembly 110, and the heated filtered water is obtained.

[0062] In the second water path (i.e. the one-way backflow water path) of the three-way valve connected with the water outlet end of the first water pump 104, the one-way valve 105 is arranged, and the water outlet end of the one-way valve 105 is connected with the bottom of the raw water tank 101. In the embodiment, the one-way valve 105 can guide 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 path between the first water pump 104 and the second water pump 107, so as to prevent the pipeline pressure from being too large.

[0063] In the embodiment, the controllable silicon 109 and the flow meter 108 are arranged between the second water pump 107 and the heating assembly 110 in sequence. The flow meter 108 is used to read the flow rate in the pipeline, so that the water purification system provided by the application can adjust the operating power of the first water pump 104 in the front stage and the operating power of the second water pump 107 through the flow rate of the water in the pipeline, so as to avoid damage to the equipment caused by a large pressure difference.

[0064] On the other hand, the data provided by the flow meter 108 can also be used for power control of the subsequent heating assembly 110, so that the power of the heating assembly 110 is regulated according to the water flow rate here, so as to obtain hot water of the set temperature.

[0065] In the embodiment, the negative pressure valve can replace the traditional water storage bucket to realize the functions of automatic water supply and water cut-off, so that the water purification system is more simple, and the space occupation and potential health problems caused by the use of the water storage bucket are avoided. Furthermore, the negative pressure valve can also control the water flow accurately to ensure that the water purifier remains efficient and stable during operation. Meanwhile, it can also avoid system failure caused by water pressure fluctuation or backflow.

[0066] In the embodiment, the water inlet end and the water outlet end of the heating assembly 110 are also respectively provided with a water inlet temperature sensor and a water outlet temperature sensor, and the water temperature obtained by the water inlet temperature sensor and the water outlet temperature sensor can be used to control the operation power of the heating assembly 110.

[0067] In the embodiment, the silicon controlled rectifier 109 can automatically adjust the voltage of the heating assembly 110 according to the set temperature and the water temperature in the heating system, and the water inlet temperature sensor and the water outlet temperature sensor can be used to realize heat energy transmission at low power and accurately control the water temperature.

[0068] In the embodiment, the water purification system further comprises a backwashing function: when the filter element is connected, the first water pump 104 is started, the second water pump 107 is closed, 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 waterway, so as to realize the backwashing of the filter element.

[0069] In the embodiment, the water outlet end of the negative pressure valve 106 is provided with a three-way pipe, so that 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 filtered water output by the first water pump 104 is input to the refrigeration assembly 203, and the water outlet end of the refrigeration assembly 203 is further provided with a sterilization assembly 204, and the water outlet end of the sterilization assembly 204 is connected to the system water outlet.

[0070] In the embodiment, the refrigeration assembly 203 is an electronic ice tank, and the sterilization assembly 204 is an ultraviolet sterilization assembly.

[0071] In the embodiment, the bottom of the raw water tank 101 is further provided with a contact switch 201 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.

[0072] Although the description of the present application has been quite detailed and particularly described with respect to several embodiments, it is not intended to be limited to any of these details or embodiments or any special embodiment, but should be considered to provide a broad interpretation of the possibility of the appended claims in view of the prior art, so as to effectively cover the intended scope of the present application. In addition, the present application is described above in the embodiments that the applicant can foresee, and those non-essential modifications of the present application that have not yet been foreseen can still represent equivalent modifications of the present application.

Claims

1. A water filtration system, characterized in that, include: The raw water tank (101) is equipped with a filter device. The filter device has a first water pump (104) at its outlet. The first water pump (104) has a negative pressure valve (106) at its outlet. The negative pressure valve (106) has a second water pump (107) at its outlet. The second water pump (107) has a water circuit temperature changing device at its outlet. A one-way return water circuit connects 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 line, and the one-way valve (105) is used to input water into the raw water tank; The filtration device includes a filter element (102), and the filter element (102) is provided with a filter shell outside; The water circuit temperature control device includes at least one of a heating component (110) and a cooling component (203); The outlet end of the second water pump is equipped with a thyristor (109). The outlet end of the second water pump (107) is also equipped with a flow meter (108). It also includes a third water pump (202), the inlet of which is connected to the outlet of the negative pressure valve (106), and the outlet of which is connected to the inlet of the refrigeration component (203).

2. The water filtration system according to claim 1, characterized in that, The raw water tank (101) is also equipped with a water level sensor (103).

3. The water filtration system according to claim 1, characterized in that, The bottom of the raw water tank (101) is also equipped with a contact switch.

4. The water filtration system according to claim 1, characterized in that, The water outlet of the refrigeration component (203) is also equipped with a sterilization component (204).

5. An application of a water filtration system in a coarse filtration reflux heating system, characterized in that, Includes the water filtration system according to any one of claims 1-2.

6. An application of a water filtration system in a coarse filtration reflux heating and cooling system, characterized in that, Includes the water filtration system according to any one of claims 1-4.

7. A water purifier, characterized in that, Includes the water filtration system according to any one of claims 1-4.

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