Ultrafiltration membrane assembly support with self-cleaning function

Abstract

The utility model discloses an ultrafiltration membrane component support with a self-cleaning function, and relates to the technical field of ultrafiltration membrane component supports, the ultrafiltration membrane component support comprises a filter component and a water inlet and outlet component, the filter component comprises a tubular shell and a cylindrical ultrafiltration membrane fixedly mounted in the tubular shell; the water inlet and outlet assembly comprises a water outlet pipe and a cleaning pipe which are symmetrically arranged above the tubular shell and a water inlet pipe and a blow-off pipe which are symmetrically arranged below the tubular shell, three-way valves are fixedly communicated between the water outlet pipe and the cleaning pipe and between the water inlet pipe and the blow-off pipe, and the three-way valves are fixedly communicated with the tubular shell. The three-way valves are arranged at the upper end and the lower end of the tubular shell, and the cleaning pipe and the blow-off pipe are matched, so that a liquid conveying and purifying pipeline and a backwashing pipeline coexist, the cylinder type ultrafiltration membrane does not need to be manually disassembled and assembled for cleaning, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of ultrafiltration membrane module support technology, and in particular to an ultrafiltration membrane module support with self-cleaning function. Background Technology

[0002] Ultrafiltration is a water purification technology that uses a hollow fiber membrane with micropores in its tube wall as the filtration medium and pressure as the driving force. In ultrafiltration, water is forced through the hollow fiber membrane at a certain flow rate under external pressure. The micropores of the hollow fiber membrane only allow water molecules and molecules or particles smaller than 0.1 micrometers to pass through, while larger impurities in the water, such as bacteria, colloids, particulate matter, and large organic molecules, are retained, thus purifying the water.

[0003] In existing technologies, current ultrafiltration membrane module supports lack self-cleaning capabilities. As the ultrafiltration membrane ages, more and more impurities accumulate on its surface, leading to a reduction in the filtration area and impacting the membrane's flux, thus decreasing water purification efficiency. Manual cleaning is not only complex and difficult but also inefficient. Therefore, this paper proposes an ultrafiltration membrane module support with a self-cleaning function. Utility Model Content

[0004] The purpose of this invention is to provide an ultrafiltration membrane module support with self-cleaning function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ultrafiltration membrane module support with self-cleaning function, comprising:

[0006] A filtration assembly, comprising a tubular housing and a cartridge-type ultrafiltration membrane fixedly installed inside the tubular housing;

[0007] The inlet and outlet water assembly includes an outlet pipe and a cleaning pipe symmetrically arranged above the tubular housing, and an inlet pipe and a drain pipe symmetrically arranged below the tubular housing. A three-way valve is fixedly connected between the outlet pipe and the cleaning pipe, and between the inlet pipe and the drain pipe. The three-way valve is fixedly connected to the tubular housing. The three-way valve located above the tubular housing controls the liquid in the outlet pipe or the cleaning pipe to enter the cylindrical ultrafiltration membrane, and the three-way valve located below the tubular housing controls the liquid in the tubular housing to be discharged from the inlet pipe or the drain pipe.

[0008] Preferably, the three-way valve located between the water outlet pipe and the cleaning pipe has an auxiliary pipe fixedly connected to one end near the tubular housing, and the auxiliary pipe extends into the inner cavity of the cylindrical ultrafiltration membrane.

[0009] Preferably, the cylindrical ultrafiltration membrane is provided with a connecting tube inside, and a sealed bearing is fixedly connected between the top of the inner side of the connecting tube and the bottom of the outer wall of the auxiliary tube. The outer peripheral wall of the connecting tube is provided with multiple flushing nozzles in an array.

[0010] Preferably, multiple rinsing nozzles located at the same height on the outer peripheral wall of the cylindrical ultrafiltration membrane are arranged in a ring array, and the rinsing nozzles are inclined to the outer wall of the cylindrical ultrafiltration membrane.

[0011] Preferably, the bottom end of the connecting tube is provided with a flow hole, and a water inlet component is provided at the position of the flow hole, so that the liquid in the cylindrical ultrafiltration membrane can enter the interior of the connecting tube through the water inlet component.

[0012] Preferably, the water inlet assembly is a one-way valve, which is fixedly installed at the flow hole position at the bottom of the connecting pipe, so that the flow hole position of the connecting pipe allows liquid to enter in one direction.

[0013] Preferably, the water inlet assembly includes:

[0014] A sealing plug, wherein the sealing plug is movably inserted into the flow hole;

[0015] A support frame, which is located above the sealing plug and fixed inside the connecting pipe;

[0016] The T-shaped connecting rod is movably inserted into the middle of the support frame and extends downward to be fixed to the sealing plug;

[0017] A weak spring is sleeved on the outside of the T-shaped connecting rod and fixedly connected to the sealing plug and the support frame on opposite sides respectively.

[0018] Compared with the prior art, the technical effects of this utility model are as follows:

[0019] This invention, by installing three-way valves at both ends of the tubular outer shell, along with the setting of cleaning and drain pipes, allows the liquid transmission and purification pipeline and the backwashing pipeline to coexist. This enables the outer wall of the cylindrical ultrafiltration membrane to achieve backwashing through the cooperation of the cleaning and drain pipes, eliminating the need for manual disassembly and assembly of the cylindrical ultrafiltration membrane for cleaning. This makes the cleaning of the cylindrical ultrafiltration membrane more convenient and labor-saving, while improving the efficiency of the cleaning work. Attached Figure Description

[0020] Figure 1 This is a front cross-sectional view of the present invention.

[0021] Figure 2 This is a top sectional view of the auxiliary tube of this utility model.

[0022] Figure 3 This is a partial cross-sectional view of the side of the auxiliary tube of this utility model.

[0023] In the diagram: 100, tubular outer casing; 101, three-way valve; 102, outlet pipe; 103, inlet pipe; 104, cleaning pipe; 105, drain pipe; 200, cartridge ultrafiltration membrane; 201, auxiliary pipe; 202, connecting pipe; 203, flushing nozzle; 204, flow hole; 205, sealing plug; 206, support frame; 207, T-shaped connecting rod; 208, weak spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figures 1-3 The image shows a self-cleaning ultrafiltration membrane module support.

[0026] Example 1: Includes a filter assembly and an inlet / outlet water assembly. The filter assembly includes a tubular housing 100 and a cylindrical ultrafiltration membrane 200 fixedly installed inside the tubular housing 100. The inlet / outlet water assembly includes an outlet pipe 102 and a cleaning pipe 104 symmetrically arranged above the tubular housing 100, and an inlet pipe 103 and a drain pipe 105 symmetrically arranged below the tubular housing 100. A three-way valve 101 is fixedly connected between the outlet pipe 102 and the cleaning pipe 104, and between the inlet pipe 103 and the drain pipe 105. The three-way valve 101 is connected to the tubular housing 100. A three-way valve 101, located above the tubular housing 100, controls the liquid in the outlet pipe 102 or cleaning pipe 104 to enter the cartridge ultrafiltration membrane 200. A three-way valve 101 located below the tubular housing 100 controls the liquid in the tubular housing 100 to exit from the inlet pipe 103 or drain pipe 105. An auxiliary pipe 201 is fixedly connected to one end of the three-way valve 101 located between the outlet pipe 102 and the cleaning pipe 104, near the tubular housing 100. The auxiliary pipe 201 extends into the inner cavity of the cartridge ultrafiltration membrane 200. During filtration... During operation, wastewater enters the tubular housing 100 through the inlet pipe 103, is filtered by the cylindrical ultrafiltration membrane 200, and then flows into the membrane itself. The filtered purified water is then transferred from the auxiliary pipe 201 to the outlet pipe 102, thus forming a wastewater purification pipeline to ensure continuous purification of wastewater. When cleaning of the cylindrical ultrafiltration membrane 200 is required, clean water from the external source enters the membrane 200 through the cleaning pipe 104, then through the three-way valve 101 and the auxiliary pipe 201, and then permeates from the inner wall of the membrane to the outer wall. The wastewater is discharged into the inner cavity of the tubular housing 100, thereby carrying away the impurities adhering to the outer wall of the cylindrical ultrafiltration membrane 200. The wastewater containing impurities is discharged from the drain pipe 105 through the three-way valve 101, forming a backwash pipeline for cleaning the cylindrical ultrafiltration membrane 200, achieving the backwashing effect on the cylindrical ultrafiltration membrane 200. The entire process does not require disassembling the cylindrical ultrafiltration membrane 200. It is only necessary to control the flow direction of the two three-way valves 101 on the upper and lower parts of the tubular housing 100. The operation is simple and convenient, saving time and effort, and improving the efficiency and convenience of cleaning the cylindrical ultrafiltration membrane 200.

[0027] Furthermore, a connecting tube 202 is movably installed inside the cylindrical ultrafiltration membrane 200. A sealed bearing is fixedly connected between the top inner side of the connecting tube 202 and the bottom outer wall of the auxiliary tube 201. Multiple rinsing nozzles 203 are arrayed on the outer peripheral wall of the connecting tube 202. These rinsing nozzles 203, located at the same height on the outer peripheral wall of the cylindrical ultrafiltration membrane 200, are arranged in a ring array, and the rinsing nozzles 203 are inclined to the outer wall of the cylindrical ultrafiltration membrane 200. By adding a rotatable connecting tube 202 to the bottom of the auxiliary tube 201, and cooperating with the connecting tube 201... 02 Multiple sets of flushing nozzles 203 are spaced apart from top to bottom on the outer wall. By using the multiple flushing nozzles 203 in each layer to be horizontally inclined, when the liquid is pressurized and discharged from the connecting pipe 202 through the flushing nozzles 203, the thrust of the water causes the connecting pipe 202 to rotate. As the connecting pipe 202 rotates, the flushing nozzles 203 can flush a wider area of ​​the inner wall of the cylindrical ultrafiltration membrane 200. At the same time, the impact operation enhances the flushing effect on the inner wall of the cylindrical ultrafiltration membrane 200, improving the quality of backwashing and cleaning of the cylindrical ultrafiltration membrane 200.

[0028] In addition, a flow hole 204 is provided at the bottom end of the connecting pipe 202, and a water inlet component is provided at the flow hole 204. This allows liquid inside the cylindrical ultrafiltration membrane 200 to enter the interior of the connecting pipe 202 through the water inlet component. By providing a flow hole 204 at the bottom of the connecting pipe 202, purified water filtered by the cylindrical ultrafiltration membrane 200 can enter through the flow hole 204 at the bottom of the connecting pipe 202 during the purification process, and then exit through the auxiliary pipe 201 and the three-way valve 101 to the outlet pipe 102. The water inlet component prevents liquid entering the connecting pipe 202 from being discharged through the flow hole 204 during backwashing, allowing the liquid to be concentrated and discharged from the flushing nozzle 203 to flush the cylindrical ultrafiltration membrane 200. The water inlet component includes a sealing plug 205, which is movably inserted into the flow hole 204, and a support frame 206 is located at the sealing plug. The sealing plug 205 is fixed above and inside the connecting tube 202. The T-shaped connecting rod 207 is movably inserted into the middle of the support frame 206 and extends downward to be fixed to the sealing plug 205. The weak spring 208 is sleeved on the outside of the T-shaped connecting rod 207 and fixedly connected to the sealing plug 205 and the support frame 206 on opposite sides. During the purification pipeline, due to the weak elasticity of the weak spring 208, the liquid entering the cylindrical ultrafiltration membrane 200 uses water pressure to push open the sealing plug 205, causing the weak spring 208 to undergo elastic deformation, thus allowing the liquid to enter the connecting tube 202. During the backwashing pipeline, the liquid flows downward in the connecting tube 202, which can generate a downward pushing force on the sealing plug 205. Combined with the elastic pushing force of the weak spring 208, the sealing plug 205 is kept tightly closed with the flow hole 204, preventing the liquid from flowing out from the flow hole 204.

[0029] Example 2: The difference between this example and Example 1 is that the water inlet component is a one-way valve. The one-way valve is fixedly installed at the flow hole 204 at the bottom of the connecting pipe 202, so that the flow hole 204 of the connecting pipe 202 allows liquid to enter in one direction. By setting the one-way valve, the liquid can only enter the connecting pipe 202 from the flow hole 204, and cannot be discharged from the connecting pipe 202 through the flow hole 204.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 self-cleaning ultrafiltration membrane module support, characterized in that, include: The filtration assembly includes a tubular housing (100) and a cartridge ultrafiltration membrane (200) fixedly installed inside the tubular housing (100); The inlet and outlet water assembly includes an outlet pipe (102) and a cleaning pipe (104) symmetrically arranged above the tubular housing (100), and an inlet pipe (103) and a drain pipe (105) symmetrically arranged below the tubular housing (100). A three-way valve (101) is fixedly connected between the outlet pipe (102) and the cleaning pipe (104) and between the inlet pipe (103) and the drain pipe (105). The three-way valve (101) is fixedly connected to the tubular housing (100). The three-way valve (101) located above the tubular housing (100) controls the liquid in the outlet pipe (102) or the cleaning pipe (104) to enter the cylindrical ultrafiltration membrane (200). The three-way valve (101) located below the tubular housing (100) controls the liquid in the tubular housing (100) to be discharged from the inlet pipe (103) or the drain pipe (105).

2. The ultrafiltration membrane module support with self-cleaning function according to claim 1, characterized in that, A three-way valve (101) located between the outlet pipe (102) and the cleaning pipe (104) is fixedly connected to an auxiliary pipe (201) at one end near the tubular housing (100), and the auxiliary pipe (201) extends into the inner cavity of the cylindrical ultrafiltration membrane (200).

3. The ultrafiltration membrane module support with self-cleaning function according to claim 2, characterized in that, The tubular ultrafiltration membrane (200) is equipped with a connecting tube (202) inside. A sealed bearing is fixedly connected between the top of the inner side of the connecting tube (202) and the bottom of the outer wall of the auxiliary tube (201). The outer peripheral wall of the connecting tube (202) is provided with a plurality of flushing nozzles (203) in an array.

4. The ultrafiltration membrane module support with self-cleaning function according to claim 3, characterized in that, Multiple flushing nozzles (203) located at the same height on the outer peripheral wall of the cylindrical ultrafiltration membrane (200) are arranged in a ring array, and the flushing nozzles (203) are inclined to the outer wall of the cylindrical ultrafiltration membrane (200).

5. The ultrafiltration membrane module support with self-cleaning function according to claim 3, characterized in that, The bottom end of the connecting pipe (202) is provided with a flow hole (204), and a water inlet component is provided at the position of the flow hole (204) so ​​that the liquid in the cylindrical ultrafiltration membrane (200) can enter the interior of the connecting pipe (202) through the water inlet component.

6. The ultrafiltration membrane module support with self-cleaning function according to claim 5, characterized in that, The water inlet assembly is a one-way valve, which is fixedly installed at the flow hole (204) at the bottom of the connecting pipe (202) so that liquid can enter the connecting pipe (202) in one direction through the flow hole (204).

7. A self-cleaning ultrafiltration membrane module support according to claim 5, characterized in that, The water inlet assembly includes: A sealing plug (205) is movably inserted into a flow hole (204); A support frame (206) is located above the sealing plug (205) and fixed inside the connecting pipe (202); T-shaped connecting rod (207), which is movably inserted into the middle of the support frame (206) and extends downward to be fixed to the sealing plug (205); A weak spring (208) is sleeved on the outside of the T-shaped connecting rod (207) and fixedly connected to the sealing plug (205) and the support frame (206) on opposite sides respectively.

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