Ultrafiltration membrane device of a multilayer composite structure

Abstract

The utility model relates to ultrafiltration membrane technical field especially multilayer composite structure's ultrafiltration membrane device, it includes: membrane shell, the membrane shell top is provided with membrane cover, a pair of easily detachable components is symmetrically arranged between the membrane shell and membrane cover, the filter core subassembly is provided with in the membrane cover bottom. The utility model discloses through setting easily detachable components, the clever cooperation of mounting seat no.

Description

Technical Field

[0001] This utility model relates to the field of ultrafiltration membrane technology, and in particular to an ultrafiltration membrane device with a multilayer composite structure. Background Technology

[0002] With the development of science and technology and the progress of society, the development of the field of polymer materials has been given attention. Among them, the application of artificial permeable membranes used in the ultrafiltration process, namely ultrafiltration membranes, is becoming increasingly widespread.

[0003] However, traditional ultrafiltration membrane devices are usually equipped with only a single-layer ultrafiltration membrane. During use, impurities are easily adsorbed on the surface of the ultrafiltration membrane, which can easily cause blockage over time. This leads to an increase in internal pressure of the ultrafiltration membrane. Once this pressure exceeds the pressure limit of the ultrafiltration membrane, the membrane will rupture, resulting in a decline in the quality of the effluent. Faced with these problems, users often have no choice but to replace the filter cartridge. However, the problem is that the structural design of traditional ultrafiltration membrane devices is relatively complex, making the installation and disassembly process cumbersome and the maintenance costs relatively high. Utility Model Content

[0004] The purpose of this invention is to provide an ultrafiltration membrane device with a multilayer composite structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: it includes a membrane housing, a membrane cover is provided on the top of the membrane housing, a pair of easily detachable components are symmetrically arranged between the membrane housing and the membrane cover, and a filter element assembly is provided at the bottom of the membrane cover.

[0006] In a preferred embodiment of this invention, the filter element assembly includes a filter membrane mounting bracket disposed at the bottom of the membrane cover. A first ultrafiltration membrane is disposed within the filter membrane mounting bracket. A second ultrafiltration membrane is disposed within the first ultrafiltration membrane. The pore size of the second ultrafiltration membrane is smaller than that of the first ultrafiltration membrane. A third ultrafiltration membrane is disposed within the second ultrafiltration membrane. The pore size of the third ultrafiltration membrane is smaller than that of the second ultrafiltration membrane. A water inlet is provided at the top of the filter membrane mounting bracket corresponding to the position of the third ultrafiltration membrane.

[0007] As a preferred embodiment of this utility model, a water outlet pipe is provided on the membrane cover at the position corresponding to the water inlet, a fourth ultrafiltration membrane is provided at the bottom of the water outlet pipe, the pore size of the fourth ultrafiltration membrane is smaller than that of the third ultrafiltration membrane, a water inlet pipe is provided on the side of the membrane cover away from the water outlet pipe, a sealing plate is provided on the top of the membrane cover, the water inlet pipe passes through the sealing plate, and the bottom of the water inlet pipe is located inside the membrane shell.

[0008] As a preferred embodiment of this utility model, the easy-to-disassemble component includes a mounting base on the membrane housing, a mounting box on one side of the mounting base, a pair of springs inside the mounting box, a locking tongue on one side of the two springs, and a pair of guide rails symmetrically arranged on the inner walls of both sides of the mounting box, with the locking tongue slidably mounted on the guide rails.

[0009] As a preferred embodiment of this utility model, a second mounting base is provided on the membrane cover at a position corresponding to the first mounting base. A second mounting box corresponding to the first mounting box is provided on one side of the second mounting base. A pair of guide rails are symmetrically arranged on the inner walls of both sides of the second mounting box. A partition plate is provided inside the second mounting box. A pair of springs are symmetrically arranged on one side of the partition plate. A button is provided on one side of each spring. The button is slidably mounted on the guide rail. A push rod is provided on one side of the button. The push rod passes through the partition plate. A pressure plate is provided at the end of the push rod away from the button. A handle is provided on one side of the second mounting box.

[0010] As a preferred embodiment of this invention, a sewage outlet is provided at the bottom of the membrane shell, and a valve is provided on the sewage outlet.

[0011] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0012] 1. This utility model, through the design of easily detachable components, the ingenious cooperation of mounting base one, mounting box one, locking tongue, and spring one on the membrane housing, and the linkage mechanism of corresponding mounting base two, mounting box two, button, spring two, push rod, and pressure plate on the membrane cover, allows operators to easily unlock and separate the membrane housing and membrane cover simply by pressing the button and lifting the membrane cover. This simplifies the process of replacing filter cartridges and reduces the time and effort required for maintenance. Secondly, during installation, the membrane cover only needs to be aligned with the membrane housing and inserted. During the insertion process, the locking tongue will be subjected to pressure, which will compress spring one and retract it into mounting box one along guide rail one. After installation, the external force disappears, spring one releases its elastic potential energy, and pushes the locking tongue along guide rail one and guide rail two into mounting box two, thereby locking the membrane cover and membrane housing. This simplifies the installation steps and improves installation efficiency.

[0013] 2. By setting up a filter element assembly, the multi-layer filtration structure formed by the first ultrafiltration membrane, the second ultrafiltration membrane and the third ultrafiltration membrane with gradually decreasing pore size can efficiently remove suspended solids, colloids, bacteria and macromolecular organic matter in water, providing multi-layer filtration protection. This not only improves filtration efficiency, but also increases the fault tolerance of the device. Even if a certain layer of ultrafiltration membrane is slightly damaged, it will not have a significant impact on the overall filtration effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the membrane cover structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the filter element assembly structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the easily detachable and assembled component structure of this utility model;

[0018] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle;

[0019] Figure 6 This is a schematic diagram of the mounting box 2 structure in the easy-to-disassemble component of this utility model;

[0020] Figure 7 for Figure 6 Enlarged diagram of point B in the middle.

[0021] Reference numerals: Membrane housing 1, Wastewater outlet 11, Valve 12, Membrane cover 2, Inlet pipe 21, Outlet pipe 22, Fourth ultrafiltration membrane 23, Sealing plate 24, Easy-to-disassemble assembly 3, Mounting base 1 31, Mounting box 1 32, Spring 1 33, Locking tongue 34, Guide rail 1 35, Mounting base 2 36, Mounting box 2 37, Guide rail 2 38, Divider plate 39, Spring 2 310, Button 311, Push rod 312, Pressure plate 313, Handle 314, Filter element assembly 4, Filter membrane mounting bracket 41, First ultrafiltration membrane 42, Second ultrafiltration membrane 43, Third ultrafiltration membrane 44, Water inlet 45. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0023] like Figures 1-7 As shown, the multi-layer composite structure ultrafiltration membrane device proposed in this utility model includes a membrane shell 1, a membrane cover 2 is provided on the top of the membrane shell 1, a pair of easy-to-disassemble components 3 are symmetrically arranged between the membrane shell 1 and the membrane cover 2, and a filter element assembly 4 is provided at the bottom of the membrane cover 2.

[0024] The filter element assembly 4 includes a filter membrane mounting bracket 41 disposed at the bottom of the membrane cover 2. The filter membrane mounting bracket 41 provides a mounting base for other components in the filter element assembly 4. A first ultrafiltration membrane 42 is disposed within the filter membrane mounting bracket 41. A second ultrafiltration membrane 43 is disposed within the first ultrafiltration membrane 42. The pore size of the second ultrafiltration membrane 43 is smaller than that of the first ultrafiltration membrane 42. A third ultrafiltration membrane 44 is disposed within the second ultrafiltration membrane 43. The pore size of the third ultrafiltration membrane 44 is smaller than that of the second ultrafiltration membrane 43. The first ultrafiltration membrane 42 and the second ultrafiltration membrane 43... 3. The third ultrafiltration membrane 44 constitutes a multi-layer filtration system. The pore size of each ultrafiltration membrane gradually decreases, which can effectively remove suspended solids, colloids, bacteria and macromolecular organic matter in the water. This not only improves the filtration efficiency, but also increases the stability of the device. Even if a certain ultrafiltration membrane is damaged, it will not have a significant impact on the filtration effect of the entire device. A water inlet 45 is provided on the top of the filter membrane mounting bracket 41 at the position corresponding to the third ultrafiltration membrane 44. The water inlet 45 can introduce the water after multi-layer filtration into the outlet pipe 22.

[0025] A water outlet pipe 22 is provided on the membrane cover 2 at the position corresponding to the water inlet 45. The water outlet pipe 22 is connected to the water inlet 45 and is used to transport the filtered water to the water intake point. A fourth ultrafiltration membrane 23 is provided at the bottom of the water outlet pipe 22. The pore size of the fourth ultrafiltration membrane 23 is smaller than that of the third ultrafiltration membrane 44. The fourth ultrafiltration membrane 23 serves as the last layer of filtration barrier to ensure the purity of the water flowing into the water intake point. A water inlet pipe 21 is provided on the side of the membrane cover 2 away from the water outlet pipe 22. The water inlet pipe 21 is used to introduce external water into the membrane shell 1. A sealing plate 24 is provided on the top of the membrane cover 2. The water inlet pipe 21 passes through the sealing plate 24. The bottom of the water inlet pipe 21 is located inside the membrane shell 1. The sealing plate 24 seals the top of the membrane cover 2 to prevent dust or impurities from entering.

[0026] The easy-to-disassemble component 3 includes a mounting base 31 disposed on the diaphragm housing 1. A mounting box 32 is disposed on one side of the mounting base 31. A pair of springs 33 are disposed inside the mounting box 32. A locking tongue 34 is disposed on one side of the two springs 33. The springs 33 are used to provide the restoring force of the locking tongue 34, ensuring that the locking tongue 34 can remain in the locked position when no external force is applied. The locking tongue 34 is used to cooperate with the components on the mounting base 36 to realize the locking and unlocking of the diaphragm housing 1 and the diaphragm cover 2. A pair of guide rails 35 are symmetrically disposed on the inner walls of both sides of the mounting box 32. The locking tongue 34 is slidably disposed on the guide rails 35. The guide rails 35 are used to guide the movement direction of the locking tongue 34, ensuring that the locking tongue 34 can slide smoothly in the mounting box 32.

[0027] Mounting base 2 is provided on the membrane cover 2 at the position corresponding to mounting base 31. Mounting box 2 37 corresponding to mounting box 32 is provided on one side of mounting base 2 36. A pair of guide rails 2 38 are symmetrically arranged on the inner walls of both sides of mounting box 2 37. The guide rails 2 38 provide guidance for the locking tongue 34 and button 311 to ensure stability during movement. A partition plate 39 is provided inside mounting box 2 37. The partition plate 39 provides the mounting base for spring 2 310. A pair of spring 2 310 are symmetrically arranged on one side of partition plate 39. A button 311 is arranged on one side of the two springs 2 310. The button 311 slides... The button 311 is placed on the guide rail 38. A push rod 312 is provided on one side of the button 311. The push rod 312 passes through the partition plate 39. A pressure plate 313 is provided at the end of the push rod 312 away from the button 311. When the operator presses the button 311, the button 311 will move along the guide rail 38 and transmit power to the pressure plate 313 through the push rod 312. The pressure plate 313 then pushes the locking tongue 34 to retract into the mounting box 32, thereby unlocking the diaphragm 1 and the diaphragm cover 2. A handle 314 is provided on one side of the mounting box 37. The handle 314 is used by the operator to hold and lift the diaphragm cover 2 to separate the diaphragm 1 and the diaphragm cover 2.

[0028] The bottom of the membrane housing 1 is provided with a sewage outlet 11, and a valve 12 is provided on the sewage outlet 11. The valve 12 can control the opening and closing of the sewage outlet 11 to ensure that sewage can be discharged in time after rinsing.

[0029] In use, the operator first connects the inlet pipe 21 to the external water source, and then connects the outlet pipe 22 to the water intake point. The external water source enters the membrane housing 1 through the inlet pipe 21, and then passes through the first ultrafiltration membrane 42, the second ultrafiltration membrane 43, and the third ultrafiltration membrane 44 in sequence. Multi-layer filtration can not only effectively remove suspended solids, colloids, bacteria, and large molecular organic matter in the water, but also ensure that the filtration effect of the entire device is not affected even if one layer of ultrafiltration membrane is broken, thus improving the stability of the overall device during operation. The water after multi-layer filtration gathers inside the third ultrafiltration membrane 44 and enters the outlet pipe 22 through the water inlet 45 on the filter membrane mounting bracket 41. The fourth ultrafiltration membrane 23 at the bottom of the outlet pipe 22 is the last barrier to ensure the purity of the water flowing into the water intake point.

[0030] After prolonged use, impurities will adhere to the surfaces of the first ultrafiltration membrane 42, the second ultrafiltration membrane 43, the third ultrafiltration membrane 44, and the fourth ultrafiltration membrane 23, affecting the filtration effect. Operators can flush away the impurities by backwashing with purified water. After flushing, the wastewater outlet at the bottom of the membrane housing 1 can be opened to discharge the wastewater. If the operator needs to replace the filter element assembly 4, they can hold the handles 314 on both sides with both hands and press the button 311 with their thumbs. The button 311 moves along the guide rail 38 and transmits power to the pressure plate 313 through the push rod 312. The pressure plate 313 pushes the locking tongue 34 to retract into the mounting box 32. To unlock the membrane housing 1 and membrane cover 2, the operator can lift the membrane cover 2 upwards with both hands to separate it from the membrane housing 1, making it easier to replace the filter element assembly 4. After replacement, the operator can hold the handle 314 again with both hands to align the membrane cover 2 with the membrane housing 1 and install it. During the installation process, the locking tongue 34 will be under pressure, which will compress the spring 33 and retract it into the installation box 32 along the guide rail 35. After installation, the external force disappears, the spring 33 releases its elastic potential energy, and pushes the locking tongue 34 to move along the guide rail 35 and the guide rail 38 into the installation box 37, thus locking the membrane cover 2 and the membrane housing 1.

[0031] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A multi-layer composite ultrafiltration membrane device, comprising: The membrane housing (1) is characterized in that: a membrane cover (2) is provided on the top of the membrane housing (1), a pair of easy-to-disassemble components (3) are symmetrically arranged between the membrane housing (1) and the membrane cover (2), and a filter element assembly (4) is provided at the bottom of the membrane cover (2). The easy-to-assemble component (3) includes a mounting base (31) disposed on the membrane housing (1), a mounting box (32) disposed on one side of the mounting base (31), a pair of springs (33) disposed inside the mounting box (32), a locking tongue (34) disposed on one side of the two springs (33), a pair of guide rails (35) symmetrically disposed on the inner walls of both sides of the mounting box (32), and the locking tongue (34) slidably disposed on the guide rails (35).

2. The ultrafiltration membrane device with a multilayer composite structure according to claim 1, characterized in that: The filter element assembly (4) includes a filter membrane mounting bracket (41) disposed at the bottom of the membrane cover (2). A first ultrafiltration membrane (42) is disposed inside the filter membrane mounting bracket (41). A second ultrafiltration membrane (43) is disposed inside the first ultrafiltration membrane (42). The pore size of the second ultrafiltration membrane (43) is smaller than that of the first ultrafiltration membrane (42). A third ultrafiltration membrane (44) is disposed inside the second ultrafiltration membrane (43). The pore size of the third ultrafiltration membrane (44) is smaller than that of the second ultrafiltration membrane (43). A water inlet (45) is provided on the top of the filter membrane mounting bracket (41) at the position corresponding to the third ultrafiltration membrane (44).

3. The ultrafiltration membrane device with a multilayer composite structure according to claim 2, characterized in that: A water outlet pipe (22) is provided on the membrane cover (2) at the position corresponding to the water inlet (45). A fourth ultrafiltration membrane (23) is provided at the bottom of the water outlet pipe (22). The pore size of the fourth ultrafiltration membrane (23) is smaller than that of the third ultrafiltration membrane (44). A water inlet pipe (21) is provided on the side of the membrane cover (2) away from the water outlet pipe (22). A sealing plate (24) is provided on the top of the membrane cover (2). The water inlet pipe (21) passes through the sealing plate (24). The bottom of the water inlet pipe (21) is located inside the membrane shell (1).

4. The ultrafiltration membrane device with a multilayer composite structure according to claim 3, characterized in that: The membrane cover (2) is provided with a mounting base (36) at the position corresponding to the mounting base (31). On one side of the mounting base (36) is a mounting box (37) corresponding to the mounting box (32). A pair of guide rails (38) are symmetrically arranged on the inner walls of both sides of the mounting box (37). A partition plate (39) is provided inside the mounting box (37). A pair of springs (310) are symmetrically arranged on one side of the partition plate (39). A button (311) is provided on one side of the two springs (310). The button (311) is slidably arranged on the guide rail (38). A push rod (312) is provided on one side of the button (311). The push rod (312) passes through the partition plate (39). A pressure plate (313) is provided at the end of the push rod (312) away from the button (311). A handle (314) is provided on one side of the mounting box (37).

5. The ultrafiltration membrane device with a multilayer composite structure according to claim 4, characterized in that: The bottom of the membrane shell (1) is provided with a sewage outlet (11), and a valve (12) is provided on the sewage outlet (11).

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