Straight-through anti-accumulation water purifier filter element

Abstract

This invention belongs to the field of water purifier filter cartridges and discloses a direct-flow anti-accumulation water purifier filter cartridge, comprising: a housing with end caps at both ends; a filter cartridge disposed inside the housing and employing an internal pressure design for purifying water from the inside out; a water inlet located on one end cap of the housing for introducing water to be purified into the housing; a purified water outlet located on one side wall of the housing for discharging purified water; and a wastewater discharge assembly for discharging contaminants adhering to the filter cartridge. This invention, by adopting a direct-flow structure and an internal pressure design for the entire water purifier filter cartridge, allows water to enter the central part of the filter cartridge during use and diffuse outwards for purification. This ensures that contaminants in the water adhere to the central part of the filter cartridge, facilitating subsequent cleaning of the filter cartridge while maintaining effective water purification.

Description

Technical Field

[0001] This invention belongs to the field of water purifier filter technology, specifically relating to a direct-flow anti-accumulation water purifier filter. Background Technology

[0002] Water purifier filter cartridges are one of the key components of water purifiers. They are responsible for filtering impurities, contaminants, and odors from the water to provide clean and healthy drinking water. Most existing water purifier filter cartridges have a U-shaped structure and adopt an external pressure design. During use, water flows through the outside of the filter cartridge for filtration, while purified water is located in the center of the filter cartridge. Over time, dirt easily accumulates on the outer surface of the filter cartridge. This leads to a reduction in purified water flow and the water that needs to be purified will pass through the contaminants attached to the filter cartridge, thus contaminating the water source and resulting in poor purification effect. Furthermore, existing filter cartridges are not easy to self-clean after dirt accumulation and need to be disassembled and replaced, resulting in high operating costs for users.

[0003] For example, patent CN112456667A discloses a filter element and a water purification system including the filter element. The system performs filtration or rinsing by controlling the water circuit switching valve to be in the filtration position or the rinsing position. When the water circuit switching valve is in the rinsing position, the first flow channel connects the external water inlet and the water inlet of the filter element body, and the second flow channel blocks the external water outlet and / or the water outlet of the filter element body. The automatic rinsing valve is connected to the drain outlet and opens and closes at regular intervals, thus realizing the automatic rinsing of the filter element.

[0004] While the aforementioned water purifier filter cartridges can achieve a self-cleaning function, they still have the following problems.

[0005] 1. Due to the overall external pressure structure, dirt adheres to the filter element from the outside to the inside, resulting in a large adhesion area and poor rinsing effect when rinsing the filter element.

[0006] 2. When rinsing and cleaning the filter element, the amount of rinsing water cannot be controlled according to the specific usage conditions, which easily leads to water waste and needs to be improved. Summary of the Invention

[0007] The purpose of this invention is to provide a direct-flow anti-accumulation water purifier filter element to solve the technical problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a direct-flow anti-accumulation water purifier filter element, comprising: a housing, both ends of which are provided with end caps; a filter element disposed inside the housing and employing an internal pressure design for purifying water from the inside out; a water inlet located on one end cap of the housing for introducing water to be purified into the housing; a purified water outlet located on one side wall of the housing for discharging purified water; and a wastewater discharge assembly for discharging contaminants adhering to the filter element.

[0009] Preferably, epoxy end caps are provided on both ends of the housing, and sealing rings are provided at each epoxy end cap. The end caps are sealed to the housing through the sealing rings and epoxy end caps.

[0010] Preferably, the sewage discharge assembly includes a sewage discharge port, which is disposed on an end cap at the end away from the water inlet, and the sewage discharge port is coaxially arranged with the water inlet.

[0011] Preferably, the filter element is one of an ultrafiltration membrane filter element or a ceramic membrane filter element.

[0012] Preferably, the drain outlet is provided with an opening and closing structure, which is either a normal drain valve or a delayed drain valve.

[0013] Preferably, the sewage discharge assembly further includes: a pressure water storage tank, disposed on one side of the housing and connected to the interior of the housing via a pipe; a water storage valve, disposed at the inlet end of the pressure water storage tank and located on the pipe connecting the housing and the pressure water storage tank; and a backwash valve, disposed at the outlet end of the pressure water storage tank and located on the pipe connecting the pressure water storage tank and the housing.

[0014] Preferably, it also includes: a data acquisition module, used to collect comprehensive data information on the use of the water purifier filter cartridge, the comprehensive data information including the total amount of water entering the filter cartridge per unit time, the time of water purification use, and the water quality coefficient;

[0015] The data processing module is used to generate sewage flushing coefficients based on comprehensive data information, and to determine and generate corresponding flushing water volume level information based on the sewage flushing coefficients.

[0016] The control module controls the corresponding flushing water volume to flush and drain the filter element based on the flushing water volume level information.

[0017] Preferably, the water quality coefficient is generated in the following way:

[0018]

[0019] In the formula, S x W is the water quality coefficient. d Z represents the concentration of microorganisms in the water to be purified. dG represents the turbidity of the water to be purified. t The total dissolved solids concentration in the water to be purified. All are weighting coefficients. All are greater than 0.

[0020] Preferably, the sewage flushing coefficient is generated in the following way:

[0021]

[0022] In the formula, P x S is the sewage flushing coefficient. l S represents the total amount of water entering the filter cartridge per unit time. x J is the water quality coefficient. s For the time of water purification use, All are weighting coefficients. All are greater than 0.

[0023] Preferably, the flushing water volume level information is generated in the following way:

[0024] The flushing water volume level information includes first-level flushing water volume information, second-level flushing water volume information, third-level flushing water volume information, and fourth-level flushing water volume information;

[0025] The preset threshold range for the sewage flushing coefficient is P. x1 P x2 and P x3 The P x1 <P x2 <P x3 ;

[0026] If P x1 ≥P x At this point, the data processing module generates primary flushing water volume information;

[0027] If P x2 ≥P x >P x1 At this point, the data processing module generates secondary flushing water volume information;

[0028] If P x3 ≥P x >P x2 At this point, the data processing module generates three levels of flushing water volume information;

[0029] If P x >P x3 At this point, the data processing module generates four levels of flushing water volume information.

[0030] Preferably, the flushing water volume information corresponding to the first-level flushing water volume information, the second-level flushing water volume information, the third-level flushing water volume information, and the fourth-level flushing water volume information are respectively the first-level water volume, the second-level water volume, the third-level water volume, and the fourth-level water volume, and the first-level water volume, the second-level water volume, the third-level water volume, and the fourth-level water volume increase sequentially.

[0031] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0032] 1. This invention adopts a straight-through structure for the entire water purifier filter element and uses an internal pressure design. During use, the water to be purified can first enter the central part of the filter element and diffuse outward from the central part of the filter element for purification. This allows the pollutants in the water to adhere to the central part of the filter element, which can ensure the water purification effect while facilitating subsequent cleaning of the filter element.

[0033] 2. This invention collects comprehensive data on the use of water purifier filter cartridges and generates corresponding flushing coefficients. Based on these coefficients, it determines the appropriate flushing water volume levels, thereby controlling the appropriate water volume to flush the filter cartridges and effectively removing contaminants adhering to them. This ensures effective flushing of the filter cartridges while maximizing water conservation. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the overall structure of the present invention is shown;

[0036] Figure 2 A schematic diagram of the housing structure of the present invention is shown;

[0037] Figure 3 A schematic diagram of the structure of Embodiment 1 of the present invention is shown;

[0038] Figure 4 A schematic diagram of the structure of Embodiment 2 of the present invention is shown;

[0039] Figure 5 A schematic diagram of the structure of Embodiment 3 of the present invention is shown.

[0040] Reference numerals: 100, housing; 101, end cap; 102, filter element; 103, water inlet; 104, clean water outlet; 104a, opening and closing valve; 105, epoxy end cap; 106, sealing ring; 200, drain assembly; 201, drain port; 202, opening and closing structure; 202a, normal drain valve; 202b, delayed drain valve; 203, pressure storage tank; 204, water storage valve; 205, backwash valve. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1

[0043] Reference Figure 1-2 As shown, a direct-flow anti-accumulation water purifier filter element includes: a housing 100, which is cylindrical in shape and has end caps 101 at both ends; a filter element 102, which is disposed inside the housing 100 and adopts an internal pressure design for purifying water from the inside out. The filter element 102 is prepared using a precision mirror membrane-making device, which greatly improves the surface smoothness of the filter element 102, making it easier to rinse after intercepting dirt and more thorough in removing dirt; and a water inlet 103, which is opened on the end cap 101 at one end of the housing 100. The inlet 103 is used to introduce water to be purified into the housing 100 and directly into the center of the filter element 102. A one-way valve is provided at the inlet 103 to prevent water backflow. The purified water outlet 104 is opened on one side wall of the housing 100 and is used to discharge the purified water. The purified water outlet 104 is provided with an on / off valve 104a. When opened, purified water can be used. The purified water outlet 104 is also provided with a one-way valve to prevent purified water backflow. The sewage discharge assembly 200 is used to discharge the contaminants attached to the filter element 102.

[0044] Filter element 102 is an ultrafiltration membrane filter element.

[0045] In this embodiment, water to be purified can be introduced into the filter element 102 through the inlet 103. Under water pressure, the water flows from the inside of the filter element 102 to the outside. The filter material traps particles, pollutants, etc. The purified water can be allowed to flow out by opening the valve 104a at the purified water outlet 104. At the same time, the one-way valve can prevent the purified water from flowing back.

[0046] Specifically, refer to Figure 2As shown, epoxy end caps 105 are provided on both ends of the housing 100, and sealing rings 106 are provided at both epoxy end caps 105. The end caps 101 are sealed to the housing 100 through the sealing rings 106 and epoxy end caps 105. The end caps 101 are used to seal both ends of the housing 100. At the same time, the setting of sealing rings 106 and epoxy end caps 105 can increase the sealing performance of the connection between the end caps 101 and the housing 100, and prevent water leakage inside the housing 100.

[0047] Furthermore, refer to Figure 3 As shown, the sewage discharge assembly 200 includes a sewage discharge port 201, which is located on an end cap 101 at the end away from the inlet 103. The sewage discharge port 201 is coaxially arranged with the inlet 103. An opening and closing structure 202 is provided at the sewage discharge port 201. The opening and closing structure 202 is a normal sewage discharge valve 202a. A one-way valve is also provided at the sewage discharge port 201 to prevent sewage backflow.

[0048] Working principle: During operation, when purified water is needed, the normal drain valve 202a at the drain outlet 201 is closed, and the water to be purified is introduced into the central part of the filter element 102 through the inlet 103. Under water pressure, the water flows from the inside of the filter element 102 to the outside. The filter media traps particles and pollutants, causing the pollutants to concentrate in the central part of the filter element 102. The purified water can be discharged by opening the on / off valve 104a at the purified water outlet 104. At the same time, the one-way valve can prevent the purified water from flowing back, resulting in good filtration and purification effect.

[0049] When purified water is not needed and regular water is required, the on / off valve 104a at the purified water outlet 104 can be closed, while the normal drain valve 202a at the drain outlet 201 can be opened. Regular water is then introduced into the center of the filter element 102 through the inlet 103. The filter element 102's straight-through, internal pressure structure allows regular water to enter directly from the inlet 103 and exit from the drain outlet 201. Using regular water helps remove contaminants adhering to the filter element 102, ensuring its cleanliness and preventing clogging. This maintains a consistent purified water flow rate, achieving self-cleaning and allowing for long-term use without filter replacement, resulting in low operating costs.

[0050] Example 2

[0051] Reference Figure 4 As shown, based on Embodiment 1, the present invention sets the opening and closing structure 202 as a delayed drain valve 202b;

[0052] During operation, when using purified water, first close the delayed drain valve 202b, and introduce the water to be purified into the central part of the filter element 102 through the inlet 103. Under water pressure, the water flows from the inside of the filter element 102 to the outside. The filter media traps particles and pollutants, causing the pollutants to concentrate in the central part of the filter element 102. The purified water can be discharged by opening the on / off valve 104a at the purified water outlet 104. At the same time, the one-way valve can prevent the purified water from flowing back, resulting in good filtration and purification effect.

[0053] When purified water is not needed, close the on / off valve 104a at the purified water outlet 104 and open the delayed drain valve 202b at the drain outlet 201 to drain the contaminants inside the filter element 102. Then, close the delayed drain valve 202b to ensure that no contaminants accumulate inside the filter element 102, thus ensuring the safety of purified water and keeping the inside of the filter element 102 clean. This prevents the filter element from becoming clogged. After each use of purified water, a drain operation is performed to achieve self-cleaning of the filter element. It can be used for a long time without replacing the filter element, resulting in low operating costs.

[0054] In this embodiment, filter element 102 is a ceramic membrane filter element.

[0055] Example 3

[0056] To better clean the filter element, the present invention makes the following improvements based on Example 1:

[0057] Specifically, refer to Figure 5 As shown, the sewage discharge assembly 200 also includes: a pressure water storage tank 203, a water storage valve 204, and a backwash valve 205. The pressure water storage tank 203 is located on one side of the housing 100 and is connected to the inside of the housing 100 through a pipe. It is used to store filtered clean water. Both the inlet and outlet ends of the pressure water storage tank 203 are equipped with one-way valves to prevent water backflow. The water storage valve 204 is located at the inlet end of the pressure water storage tank 203 and is located on the pipe connecting the housing 100 and the pressure water storage tank 203. The backwash valve 205 is located at the outlet end of the pressure water storage tank 203 and is located on the pipe connecting the pressure water storage tank 203 and the housing 100.

[0058] Working principle: During operation, when using purified water, the normal drain valve 202a at the drain outlet 201 is closed, and the water to be purified is introduced into the central part of the filter element 102 through the inlet 103. Under water pressure, the water flows from the inside of the filter element 102 to the outside. The filter media traps particles and pollutants, causing the pollutants to concentrate in the central part of the filter element 102. The purified water can be discharged by opening the on / off valve 104a at the purified water outlet 104. At the same time, the one-way valve can prevent the purified water from flowing back, resulting in good filtration and purification effect.

[0059] Furthermore, when using purified water, the backwash valve 205 is closed and the water storage valve 204 is opened. At this time, a portion of the purified water can enter the pressure water storage tank 203. When the pressure water storage tank 203 is full, the water storage valve 204 is closed.

[0060] When not using purified water, close the on / off valve 104a at the purified water outlet 104. At this time, the water storage valve 204 is also closed. Then, the normal drain valve 202a can be opened. When the pressure inside the filter element 102 is low, the backwash valve 205 can be opened to backwash the filter element 102 with purified water from the pressure water storage tank 203. This backwashing removes contaminants attached to the filter element 102, ensuring that there is no dirt residue inside the filter element 102. This allows the filter element 102 to be used for a long time without replacement and without being clogged by contaminants, thus ensuring good water purification effect.

[0061] Example 4

[0062] In order to utilize a reasonable amount of water for backwashing the filter element 102, the present invention makes the following improvements based on Example 3:

[0063] It also includes: a data acquisition module, used to collect comprehensive data information on the use of water purifier filter cartridges, including the total amount of water entering filter cartridge 102 per unit time, the time of water purification, and the water quality coefficient;

[0064] The total amount of water entering the filter element 102 per unit time refers to the amount of water to be purified that enters the filter element 102 through the inlet 103 within a certain time period. This can be detected in real time by setting a flow meter at the inlet 103.

[0065] The time of water purification usage refers to the time the valve at the water outlet is open, which can be obtained by a timer set on the valve.

[0066] The water quality coefficient refers to the concentration of microorganisms, turbidity, and total dissolved solids concentration in the water to be purified.

[0067] The concentration of microorganisms in the water to be purified refers to the concentration of microorganisms present in the water, which can be detected by a microbial sensor. The higher the concentration of microorganisms, the worse the water quality.

[0068] The turbidity of water to be purified refers to the amount of suspended particles in the water, which can be detected by a turbidity sensor. The higher the turbidity, the worse the water quality.

[0069] The total dissolved solids concentration in water to be purified refers to the sum of all solid substances dissolved in the water, including inorganic salts, organic matter, minerals, and other solids dissolved in the water. It can be detected by a conductivity sensor. The higher the total dissolved solids concentration, the higher the content of dissolved substances in the surface water and the worse the water quality.

[0070] In conclusion, it can be seen that the higher the water quality coefficient, the worse the water quality.

[0071] The water quality coefficient is generated as follows:

[0072]

[0073] In the formula, S x W is the water quality coefficient. d Z represents the concentration of microorganisms in the water to be purified. d G represents the turbidity of the water to be purified. t The total dissolved solids concentration in the water to be purified. All are weighting coefficients. All are greater than 0;

[0074] The data processing module is used to generate sewage flushing coefficients based on comprehensive data information, and to determine and generate corresponding flushing water volume level information based on the sewage flushing coefficients.

[0075] The sewage flushing coefficient is generated as follows:

[0076]

[0077] In the formula, P x S is the sewage flushing coefficient. l S represents the total amount of water entering the filter cartridge per unit time. x J is the water quality coefficient. s For the time of water purification use, All are weighting coefficients. All are greater than 0;

[0078] The larger the sewage flushing coefficient, the more impurities are attached to the filter element 102, and more water is needed for flushing.

[0079] The flushing water volume level information is generated as follows:

[0080] The flushing water volume level information includes primary flushing water volume information, secondary flushing water volume information, tertiary flushing water volume information, and quaternary flushing water volume information;

[0081] The preset threshold range for the sewage flushing coefficient is P. x1 P x2 and P x3 P x1 <P x2 <P x3 ;

[0082] If P x1 ≥P x At this point, the data processing module generates primary flushing water volume information;

[0083] If P x2 ≥P x >P x1 At this point, the data processing module generates secondary flushing water volume information;

[0084] If P x3 ≥P x >P x2 At this point, the data processing module generates three levels of flushing water volume information;

[0085] If P x >P x3 At this point, the data processing module generates four levels of flushing water volume information;

[0086] Among them, P x1 P x2 and P x3 The specific application requirements shall be determined by those skilled in the art.

[0087] The control module controls the corresponding flushing water volume to flush and discharge the filter element 102 according to the flushing water volume level information.

[0088] Among them, the flushing water volume information for the first level, the second level, the third level, and the fourth level is respectively the first level water volume, the second level water volume, the third level water volume, and the fourth level water volume, and the first level water volume, the second level water volume, the third level water volume and the fourth level water volume increase in sequence.

[0089] When backwashing the filter element 102, the corresponding flushing water volume level can be determined according to the sewage flushing coefficient, and then the corresponding flushing water volume can be determined. A flow meter can be installed at the backwash valve 205 to control the flushing water volume. When the water volume of the filter element 102 is flushed through the backwash valve 205 reaches the preset corresponding level of water volume, the backwash valve 205 is controlled to close. The reasonable water volume can be controlled to flush the filter element 102, effectively removing the contaminants attached to the filter element 102. While ensuring effective flushing of the filter element 102, water can be saved to the greatest extent.

[0090] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0091] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A direct-flow anti-accumulation water purifier filter element, characterized in that, include: The housing (100) has end caps (101) at both ends. The filter element (102) is disposed inside the housing (100) and adopts an internal pressure design for purifying water quality from the inside out; The water inlet (103) is provided on the end cap (101) at one end of the housing (100) for introducing the water to be purified into the housing (100); A purified water outlet (104) is provided on one side wall of the housing (100) for discharging purified water; A drainage assembly (200) is used to discharge contaminants attached to the filter element (102); The sewage discharge assembly (200) also includes: A pressure water storage tank (203) is disposed on one side of the shell (100) and is connected to the interior of the shell (100) via a pipe; A water storage valve (204) is provided at the inlet end of the pressure water storage tank (203) and located on the pipe connecting the housing (100) and the pressure water storage tank (203); A backwash valve (205) is installed at the outlet end of the pressure water tank (203) and located on the pipe connecting the pressure water tank (203) and the shell (100); Also includes: The data acquisition module is used to collect comprehensive data information on the use of the water purifier filter cartridge. This comprehensive data information includes the total water flow entering the filter cartridge (102) per unit time, the water purification time, and the water quality coefficient. The water quality coefficient is generated as follows: ； In the formula, Water quality coefficient, The concentration of microorganisms in the water to be purified. The turbidity of the water to be purified. The total dissolved solids concentration in the water to be purified. , , All are weighting coefficients. , , All are greater than 0; The data processing module is used to generate a sewage flushing coefficient based on comprehensive data information, and to determine and generate corresponding flushing water volume level information based on the sewage flushing coefficient; the sewage flushing coefficient is generated in the following way: ； In the formula, This is the sewage flushing coefficient. The total amount of water entering the filter element per unit time. Water quality coefficient, For the time of water purification use, , , All are weighting coefficients. , , All values ​​are greater than 0; the method for generating the flushing water volume level information is as follows: The flushing water volume level information includes primary flushing water volume information, secondary flushing water volume information, tertiary flushing water volume information, and quaternary flushing water volume information; The preset threshold range for the sewage flushing coefficient is: , and The < < ; like At this point, the data processing module generates primary flushing water volume information; if At this point, the data processing module generates secondary flushing water volume information; if At this point, the data processing module generates three levels of flushing water volume information; if At this time, the data processing module generates four levels of flushing water volume information; the flushing water volumes corresponding to the first level flushing water volume information, the second level flushing water volume information, the third level flushing water volume information and the fourth level flushing water volume information are respectively the first level water volume, the second level water volume, the third level water volume and the fourth level water volume, and the first level water volume, the second level water volume, the third level water volume and the fourth level water volume increase sequentially. The control module controls the corresponding flushing water volume to flush and discharge the filter element (102) according to the flushing water volume level information; a flow meter is set at the backwash valve (205) to control the flushing water volume. When the water volume of the filter element (102) flushed by the backwash valve (205) reaches the preset corresponding level of water volume, the backwash valve (205) is controlled to close.

2. The direct-flow anti-accumulation water purifier filter element as described in claim 1, characterized in that, The shell (100) is provided with epoxy end caps (105) on both ends of the shell (100), and a sealing ring (106) is provided at each epoxy end cap (105). The end cap (101) is sealed to the shell (100) through the sealing ring (106) and the epoxy end cap (105).

3. The direct-flow anti-accumulation water purifier filter element as described in claim 2, characterized in that, The sewage discharge assembly (200) includes a sewage discharge port (201), which is located on an end cap (101) at the end away from the water inlet (103), and the sewage discharge port (201) is coaxially arranged with the water inlet (103).

4. The direct-flow anti-accumulation water purifier filter element as described in claim 3, characterized in that, The filter element (102) is either an ultrafiltration membrane filter element or a ceramic membrane filter element.

5. A direct-flow anti-accumulation water purifier filter element as described in claim 4, characterized in that, The drain outlet (201) is provided with an opening and closing structure (202), which is either a normal drain valve (202a) or a delayed drain valve (202b).

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