Filtering device

Abstract

The utility model provides a filter equipment. The filter equipment includes casing, filter core end cover and filter core membrane silk. The casing is provided with water inlet and water outlet. The filter core end cover is arranged in the inside of casing, and the filter core end cover divides the inside of casing into first cavity and second cavity, the first cavity is communicated with water outlet, and the second cavity is communicated with water inlet. One end of filter core membrane silk is connected with filter core end cover, and the other end of filter core membrane silk is free end, and filter core membrane silk is located in second cavity, and filter core membrane silk is the hollow tubular structure with one end having opening, and the opening of filter core membrane silk is communicated with water outlet, and the periphery of filter core membrane silk is provided with a plurality of filter holes. The filter equipment provided by the utility model can make the free end of filter core membrane silk float, shake or swing, can form all -round flushing to the dirt and foreign matters of each area on the surface of filter core membrane silk, can improve the washing cleanliness, can reduce the situation that filter core membrane silk is blocked, and can improve the water production of the filter equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of water purification equipment, and more specifically, it relates to a filtration device. Background Technology

[0002] Existing filtration devices use U-shaped bends in the filter membrane fibers. Both ends of the membrane fibers are bent in the same direction to form an outlet, which connects to the purified water outlet of the water purifier. They are then secured with a mesh bundle. Because the membrane fibers are relatively long, fixing them when both ends are bent in the same direction makes them difficult to rinse away during washing. This leads to clogging of the membrane fibers and reduces the amount of purified water produced. Utility Model Content

[0003] The purpose of this utility model is to provide a filtration device to solve the technical problem in the prior art where the filter membrane fibers are fixed during rinsing, making it difficult to wash away dirt and foreign matter on the surface of the filter membrane fibers, which in turn makes the filter membrane fibers prone to clogging and reduces the amount of purified water produced.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a filtration device, comprising:

[0005] The housing has a water inlet and a clean water outlet.

[0006] A filter element end cap is disposed inside the housing, dividing the interior of the housing into a first cavity and a second cavity. The first cavity is connected to the purified water outlet, and the second cavity is connected to the water inlet.

[0007] The filter membrane fiber has one end connected to the filter end cap and the other end being a free end. The filter membrane fiber is located in the second cavity and is a hollow tubular structure with an opening at one end. The opening of the filter membrane fiber is connected to the purified water outlet, and multiple filter holes are formed on the outer periphery of the filter membrane fiber.

[0008] Furthermore, the filtration device includes a water inlet pipe, one end of which is connected to the inner wall of the water inlet and the other end of which is connected to the filter element end cap. The water inlet pipe is used to connect the water inlet and the second cavity, and the length direction of the water inlet pipe is the same as the extension direction of the filter element membrane filaments.

[0009] Furthermore, the filtration device includes a first sealing ring disposed between the outer wall of one end of the water inlet pipe and the inner wall of the water inlet; and / or

[0010] The filtration device includes a second sealing ring, which is disposed between the outer wall of the other end of the water inlet pipe and the filter element end cap.

[0011] Furthermore, the housing includes a cover and a body, the cover and the body are detachably connected, the cover and the top of the filter element end cap form the first cavity, and the body and the bottom of the filter element end cap form the second cavity.

[0012] Furthermore, the filtering device includes a connector and a third sealing ring. The connector is disposed on the outer side wall of the cover and the main body to allow the cover and the main body to be detachably connected. The third sealing ring is disposed at the connection between the cover and the main body.

[0013] Furthermore, a flushing port is provided at the bottom of the housing, and the flushing port is in communication with the second cavity.

[0014] Furthermore, both the water inlet and the rinsing port are located on the central axis of the housing.

[0015] Furthermore, the filtration device includes a mesh screen disposed at the end of the filter membrane filaments near the filter end cap, and the mesh screen is located within the second cavity.

[0016] Furthermore, the filter membrane filaments are straight.

[0017] Furthermore, the filtration device includes a fourth sealing ring, which is disposed between the outer wall of the filter element end cap and the inner wall of the housing.

[0018] Compared with the prior art, the beneficial effects of the filtration device provided by this utility model are as follows: The filtration device of this utility model includes a shell, a filter element end cap, and a filter element membrane fiber. The shell has an inlet and a purified water outlet. The filter element end cap is disposed inside the shell, dividing the interior of the shell into a first cavity and a second cavity. The first cavity is connected to the purified water outlet, and the second cavity is connected to the inlet. One end of the filter element membrane fiber is connected to the filter element end cap, and the other end of the filter element membrane fiber is a free end. The filter element membrane fiber is located in the second cavity and is a hollow tubular structure with an opening at one end. The opening of the filter element membrane fiber is connected to the purified water outlet, and multiple filter holes are formed on the outer periphery of the filter element membrane fiber.

[0019] The filter element membrane fiber of this filtration device is connected to the filter element end cap at one end and is a free end at the other end. When water is introduced into the inlet for rinsing, the water flow can cause the free end of the filter element membrane fiber to float, shake, or swing. The filter element membrane fiber is no longer in a fixed state and can use the impact force of the water flow and its own movement to form an all-round flushing of dirt and foreign matter on all areas of the surface of the filter element membrane fiber, thereby improving the rinsing cleanliness, reducing the clogging of the filter element membrane fiber, and thus increasing the filtration and purification water production of the filtration device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the external structure of the filtration device provided in a preferred embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the internal structure of the filtration device provided in a preferred embodiment of the present invention.

[0023] Figure 3 Another structural diagram of the internal structure of the filtration device provided in a preferred embodiment of this utility model.

[0024] Figure 4 This is a partial structural schematic diagram of the filtration device provided in a preferred embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the structure of the filter membrane fiber provided in a preferred embodiment of the present invention.

[0026] The main markings in the attached figures are as follows:

[0027] 100. Shell; 110. Water inlet; 120. Clean water outlet; 130. First cavity; 140. Second cavity; 150. Cover; 160. Main body; 170. Rinse port;

[0028] 200. Filter element end cap;

[0029] 300, Filter membrane fiber; 310, Opening; 320, Free end;

[0030] 400. Connecting component; 410. Third sealing ring;

[0031] 500, Fourth sealing ring;

[0032] 600. Water inlet pipe;

[0033] 700. Mesh;

[0034] 810, Filter element outlet; 820, Filter element sealing end. Detailed Implementation

[0035] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0036] like Figures 1 to 5 As shown, in some embodiments, a filtration device includes a housing 100, a filter element end cap 200, and a filter element membrane 300. The housing 100 has an inlet 110 and a purified water outlet 120. The filter element end cap 200 is disposed inside the housing 100, dividing the interior of the housing 100 into a first cavity 130 and a second cavity 140. The first cavity 130 communicates with the purified water outlet 120, and the second cavity 140 communicates with the inlet 110. One end of the filter element membrane 300 is connected to the filter element end cap 200, and the other end of the filter element membrane 300 is a free end 320. The filter element membrane 300 is located within the second cavity 140 and is a hollow tubular structure with an opening 310 at one end, which communicates with the purified water outlet 120. Multiple filter holes are formed on the outer periphery of the filter element membrane 300. Specifically, the filter pores are micro-filter pores.

[0037] It should be noted that one end of the filter membrane fiber 300 of this filtration device is connected to the filter end cap 200, and the other end is a free end 320. When water is introduced into the inlet 110 for rinsing, the water flow can cause the free end 320 of the filter membrane fiber 300 to float, shake, or swing. The filter membrane fiber 300 is no longer in a fixed state and can use the impact force of the water flow and its own movement to thoroughly flush away dirt and foreign matter on all areas of the surface of the filter membrane fiber 300, improve the rinsing cleanliness, reduce the clogging of the filter membrane fiber 300, and thus increase the filtration and purification water production of the filtration device.

[0038] Specifically, the housing 100 serves as the support and housing structure for the filtration device. The housing 100 is a hollow cylinder, and a water inlet 110 is provided on the top side wall of the housing 100. The water inlet 110 is used to connect the raw water to be filtered. The purified water outlet 120 is used to discharge the filtered purified water.

[0039] Please refer to the following: Figures 1 to 3The housing 100 includes a cover 150 and a main body 160. The cover 150 and the main body 160 are detachably connected. The cover 150 and the top of the filter element end cap 200 form a first cavity 130, and the main body 160 and the bottom of the filter element end cap 200 form a second cavity 140. This configuration allows for the inspection and maintenance of internal components by disassembling the cover 150 and the main body 160.

[0040] Please refer to the following: Figure 2 and Figure 3 In some embodiments, the filter device includes a connector 400 and a third sealing ring 410. The connector 400 is disposed on the outer side wall of the cover 150 and the body 160 to allow for a detachable connection between the cover 150 and the body 160, and the third sealing ring 410 is disposed at the connection between the cover 150 and the body 160. Specifically, the connector 400 can be a clamp. The clamp is disposed along the circumferential direction of the cover 150 and the body 160.

[0041] In addition, the third sealing ring 410 can be an elastic sealing component. The third sealing ring 410 is embedded in the mating gap between the cover 150 and the main body 160. When the clamp is tightened to make the cover 150 and the main body 160 fit together, the third sealing ring 410 will be compressed and undergo elastic deformation, filling the gap between the cover 150 and the main body 160, blocking the communication channel between the internal cavity of the housing 100 and the outside, and preventing water leakage between the cover 150 and the main body 160. The third sealing ring 410 uses the deformation of the elastic component to compensate for the assembly gap and achieve the sealing effect.

[0042] Please refer to the following: Figures 1 to 3 In some embodiments, a flushing port 170 is provided at the bottom of the housing 100. The flushing port 170 communicates with the second cavity 140. Specifically, the flushing port 170 is located at the bottom of the main body 160. This arrangement utilizes the natural downward flow characteristics of water due to gravity, combined with the water flow path of the second cavity 140, to allow the wastewater generated during flushing and backwashing to be quickly discharged along a predetermined channel. The second cavity 140 is the space for raw water filtration and membrane fiber flushing. The dirty wastewater during flushing and the pollutant waste liquid stripped during backwashing are all collected in the second cavity 140, and the flushing port 170 at the bottom is the discharge channel for the wastewater from the second cavity 140.

[0043] Specifically, both the water inlet 110 and the flushing outlet 170 are located on the central axis of the housing 100. This arrangement allows the water flow to spread evenly in all directions along the axis, and the flushing wastewater to collect at the bottom along the axis for rapid discharge.

[0044] In some embodiments, the filter element end cap 200 and the filter element membrane fiber 300 are combined to form a filter element assembly. The filter element end cap 200 and the filter element membrane fiber 300 are fixed by epoxy resin filling. The outer edge of the filter element end cap 200 is tightly fitted to the inner sidewall of the housing 100, and divides the internal space of the housing 100 into a first cavity 130 and a second cavity 140 that are independent of each other. The first cavity 130 is above the second cavity 140.

[0045] Please refer to the following: Figure 2 and Figure 3 The filtration device includes a fourth sealing ring 500. The fourth sealing ring 500 is disposed between the outer wall of the filter element end cap 200 and the inner wall of the housing 100. The fourth sealing ring 500 can be an elastic sealing component. The fourth sealing ring 500 utilizes its own elastic deformation characteristics to fill the assembly gap between the outer wall of the filter element end cap 200 and the inner wall of the housing 100. When the filter element end cap 200 is installed inside the housing 100, the compression between the housing 100 and the filter element end cap 200 causes the fourth sealing ring 500 to undergo elastic deformation, thereby completely fitting the contact surfaces of both, forming a physical sealing barrier, preventing unfiltered raw water or flushing wastewater in the second chamber 140 from seeping into the first chamber 130 and contaminating the filtered purified water in the first chamber 130.

[0046] Please refer to the following: Figure 5 In some embodiments, the filter membrane filament 300 is a hollow tubular shape. One end of the filter membrane filament 300 is sealed to the end face of the filter end cap 200 facing the second cavity 140, and this end is a connecting end with an opening 310. The opening 310 of the filter membrane filament 300 is connected to the first cavity 130, thereby achieving communication with the purified water outlet 120. The other end of the filter membrane filament 300 is a free end 320, which is completely suspended inside the second cavity 140, and the outer circumference of the tube wall of the filter membrane filament 300 is evenly distributed with multiple micro-filtration pores, which can achieve screening and filtration of raw water. After the components are assembled, the raw water in the inlet 110 can only enter the second cavity 140, and after being filtered by the filter membrane filament 300, it enters the first cavity 130 and finally flows out from the purified water outlet 120. Specifically, the filter membrane filament 300 can be an externally pressurized membrane filament.

[0047] Specifically, the filter membrane filaments 300 are straight. The straight membrane filaments have no bends, and the water flow washes the outer wall of the filter membrane filaments 300 along the axial direction of the housing 100. Combined with the floating and shaking of the filter membrane filaments 300, it can reduce the local accumulation of impurities on the surface of the filter membrane filaments 300 and reduce the problem of dirt being trapped at the bends.

[0048] Please refer to the following: Figure 2 and Figure 3In some embodiments, the filtration device includes an inlet pipe 600. One end of the inlet pipe 600 is connected to the inner wall of the inlet 110, and the other end is connected to the filter element end cap 200. The inlet pipe 600 connects the inlet 110 and the second cavity 140, and the length direction of the inlet pipe 600 is the same as the extension direction of the filter element membrane filaments 300. Specifically, the length direction of the inlet pipe 600 and the extension direction of the filter element membrane filaments 300 can be the axial direction of the housing 100. More specifically, the length direction of the inlet pipe 600 and the extension direction of the filter element membrane filaments 300 can be vertical.

[0049] It should be noted that after the raw water enters through the inlet 110, it is directly transported along the extension direction of the inlet pipe 600 to the area of ​​the filter membrane filaments 300 in the second chamber 140, ensuring that the water inlet direction is the same as the extension direction of the filter membrane filaments 300. After the raw water is sprayed out axially along the inlet pipe 600, it can act evenly on the outer wall of each filter membrane filament 300. The water pressure drives the filter membrane filaments 300 to float and shake within the second chamber 140, reducing the adhesion of impurities in the water to the surface of the filter membrane filaments 300. At the same time, it can shake off the already attached dirt, improving the overall anti-clogging ability of the filter membrane filaments 300.

[0050] In some embodiments, the filtration device includes a first sealing ring disposed between the outer wall of one end of the inlet pipe 600 and the inner wall of the inlet 110. The filtration device includes a second sealing ring disposed between the outer wall of the other end of the inlet pipe 600 and the filter element end cap 200.

[0051] It should be noted that both the first and second sealing rings are elastic sealing components. The first and second sealing rings utilize their own elastic deformation properties to fill the assembly gap between the water inlet pipe 600 and the mating components. After the water inlet pipe 600 is assembled with the water inlet 110 and the filter element end cap 200, the first and second sealing rings will undergo elastic deformation under the pressure of the mating components, thus completely fitting the contact surface and forming a physical sealing barrier to block the channel for water leakage.

[0052] Please refer to the following: Figure 3 and Figure 4 In some embodiments, the filtration device includes a mesh 700. The mesh 700 is disposed at the end of the filter membrane filament 300 near the filter end cap 200, and the mesh 700 is located within the second cavity 140.

[0053] It should be noted that the mesh 700 can be a porous, flexible mesh structure. The mesh 700 is positioned at the end of the filter membrane fiber 300 near the filter end cap 200 and within the second cavity 140. Its mesh structure and flexibility protect the end of the filter membrane fiber 300 near the filter end cap 200. When the filter membrane fiber 300 floats and vibrates due to water flow, the mesh 700 limits the amplitude of the swing at the end of the filter membrane fiber 300 near the filter end cap 200, preventing concentrated stress caused by significant bending. Simultaneously, its porous structure does not obstruct water flow, ensuring sufficient contact between the filter membrane fiber 300 and tap water, and maintaining normal filtration and rinsing processes.

[0054] Please refer to the following: Figure 4 In some embodiments, the filtration device includes a filter cartridge outlet 810 and a filter cartridge sealing end 820. The filter cartridge outlet 810 is the outlet for purified water from the filter cartridge membrane fiber 300. The openings 310 of the filter cartridge membrane fiber 300 converge and connect to the filter cartridge outlet 810. The free end 320 of the filter cartridge membrane fiber 300 is in a free-floating state and has no fixed connection. This free end 320 can be provided with movement space according to the overall cavity of the filter cartridge sealing end 820, and this area will be filled with tap water to ensure full contact between the blind end of the membrane fiber and the tap water. At the same time, the mesh 700 protects the root of the membrane fiber to prevent it from bending and being damaged during floating and shaking.

[0055] It should be noted that the water flow path of this filtration device during the water production process is as follows: inlet 110, inlet pipe 600, second chamber 140, outer wall of filter membrane 300, inner wall of filter membrane 300, opening 310 of filter membrane 300, second chamber 140, and purified water outlet 120. The flushing port 170 is closed in this state.

[0056] like Figure 2 , Figure 3 and Figure 5 As shown, the water flow path during the rinsing process is: inlet 110, inlet pipe 600, second chamber 140, outer wall of filter membrane filament 300, and rinsing port 170. Among these, Figure 2 , Figure 3 and Figure 5 The arrow points in the direction of the water flow.

[0057] The water flow path during backwashing is as follows: clean water outlet 120, first chamber 130, opening 310 of filter membrane 300, inner wall of filter membrane 300, outer wall of filter membrane 300, second chamber 140, and flushing port 170. In this state, inlet 110 is closed.

[0058] Water production principle:

[0059] With the flushing port 170 closed, tap water enters through the inlet 110 and flows into the second chamber 140 via the inlet pipe 600. The water inlet direction is the same as the filter membrane fibers 300. Utilizing the pressure of the tap water, the filter membrane fibers 300 float and vibrate, preventing dirt from easily adhering to them or shaking off existing dirt, significantly enhancing the filter's anti-clogging ability. Simultaneously, the tap water pressure drives a sieving effect, combining physical interception, adsorption, and chemical repulsion to separate substances of different sizes. Substances larger than the filter pores (such as silt, rust, colloidal suspended solids, large organic molecules, bacteria, and other harmful substances) are retained on the membrane surface, while substances smaller than the filter pores (such as small organic molecules, inorganic salts, and water) permeate the membrane as permeate, entering the central pore of the membrane fibers and then flowing into the purified water outlet 120.

[0060] Flushing principle:

[0061] Tap water enters through inlet 110 and flows into the second chamber 140 through inlet pipe 600. During the rinsing process, rinsing port 170 opens, utilizing the pressure of tap water to generate strong force. The even gaps between the filter membrane fibers 300 allow individual membrane fibers to sway and float in the water, directly rinsing the surface of the filter membrane fibers 300 from all directions and washing away dirt directly.

[0062] Backwashing principle:

[0063] During the backwashing process, tap water enters the inner wall of the filter membrane fiber 300 from the purified water outlet 120. Through reverse fluid impact, pollutants on the surface of the filter membrane fiber 300 and inside the membrane pores are removed, restoring membrane flux.

[0064] It should be noted that the terminology used above is for describing specific embodiments only and is not intended to limit the exemplary embodiments according to this utility model. When the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. The order of execution of actions, steps, etc., in the apparatus and methods shown in the specification and drawings can be implemented in any order unless a specific express order is specified, and as long as the output of the preceding process is not used in the subsequent process. Similar sequential terms used for ease of description do not imply that such an order must be followed.

[0065] Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0066] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filtration device, characterized in that, include: The housing has a water inlet and a clean water outlet. A filter element end cap is disposed inside the housing, dividing the interior of the housing into a first cavity and a second cavity. The first cavity is connected to the purified water outlet, and the second cavity is connected to the water inlet. The filter membrane fiber has one end connected to the filter end cap and the other end being a free end. The filter membrane fiber is located in the second cavity and is a hollow tubular structure with an opening at one end. The opening of the filter membrane fiber is connected to the purified water outlet, and multiple filter holes are formed on the outer periphery of the filter membrane fiber.

2. The filtration device as described in claim 1, characterized in that, The filtration device includes a water inlet pipe, one end of which is connected to the inner wall of the water inlet and the other end of which is connected to the filter element end cap. The water inlet pipe is used to connect the water inlet and the second cavity, and the length direction of the water inlet pipe is the same as the extension direction of the filter element membrane filaments.

3. The filtration device as described in claim 2, characterized in that, The filtration device includes a first sealing ring, which is disposed between the outer wall of one end of the water inlet pipe and the inner wall of the water inlet; and / or The filtration device includes a second sealing ring, which is disposed between the outer wall of the other end of the water inlet pipe and the filter element end cap.

4. The filtration device as described in claim 1, characterized in that, The housing includes a cover and a body. The cover and the body are detachably connected. The cover and the top of the filter element end cap form the first cavity, and the body and the bottom of the filter element end cap form the second cavity.

5. The filtration device as described in claim 4, characterized in that, The filter device includes a connector and a third sealing ring. The connector is disposed on the outer side wall of the cover and the main body so that the cover and the main body are detachably connected. The third sealing ring is disposed at the connection between the cover and the main body.

6. The filtration device as claimed in claim 1, characterized in that, The bottom of the housing has a rinsing port, which is connected to the second cavity.

7. The filtration device as claimed in claim 6, characterized in that, Both the water inlet and the flushing outlet are located on the central axis of the housing.

8. The filtration device as claimed in claim 1, characterized in that, The filtration device includes a mesh screen, which is disposed at the end of the filter membrane filaments near the filter end cap, and the mesh screen is located within the second cavity.

9. The filtration device as claimed in claim 1, characterized in that, The filter membrane filaments are straight.

10. The filtration device as claimed in claim 1, characterized in that, The filtration device includes a fourth sealing ring, which is disposed between the outer wall of the filter element end cap and the inner wall of the housing.

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