A column type ultrafiltration membrane module

Abstract

This application relates to the field of livestock and environmental protection engineering technology, and in particular to a column-type ultrafiltration membrane module, which includes a column mold cover, a column mold body, and a connecting assembly. The column mold cover is detachably installed on the top of the column mold body via the connecting assembly. The column mold cover includes a cover body, a water delivery pipe, hollow fiber membrane fibers, and a first connecting block. A water outlet is provided on the side of the cover body. A first chamber is provided between the cover body and the first connecting block. The first connecting block has several first connecting holes, through which the hollow fiber membrane fibers are connected to the first chamber. The water delivery pipe passes through the top of the cover, and one end of the water delivery pipe has a water inlet. Several hollow fiber membrane fibers are provided. A second connecting block is fixedly installed inside the column mold body. A second chamber is provided between the second connecting block and the first connecting block. A third chamber is provided between the second connecting block and the interior of the column mold body, and the water delivery pipe is connected to the third chamber. This application improves the convenience of ultrafiltration membrane modules.

Description

Technical Field

[0001] This application relates to the field of livestock and environmental protection engineering technology, and in particular to a column-type ultrafiltration membrane module. Background Technology

[0002] With the development of the times, water quality has become an increasingly important concern. Ultrafiltration membrane modules are commonly used in wastewater filtration to treat water.

[0003] In existing related technologies, column-type ultrafiltration membrane modules include a column mold body and several hollow fiber membrane filaments disposed within the column mold body. The hollow fiber membrane filaments have a hollow cylindrical design. One end of the column mold body has an inlet, and the other end has a product outlet and a concentrate outlet. Raw water enters the column mold body through the inlet and flows within the hollow fibers. Through pressure difference, the raw water permeates radially from the inside to the outside of the hollow fiber membrane filaments. The hollow fiber membrane filaments perform a filtration function, and the filtered substances remain inside the hollow fiber membrane filaments. The filtered purified water flows out through the outside of the hollow fiber membrane filaments and is then discharged through the product outlet.

[0004] Regarding the aforementioned technologies, in practical use, because the ultrafiltration membrane module adopts an internal pressure structure, deposits tend to accumulate inside the hollow fiber membrane fibers after filtration. Cleaning and maintenance require disassembling the module, making the process cumbersome. Summary of the Invention

[0005] To improve the convenience of ultrafiltration membrane modules, this application provides a columnar ultrafiltration membrane module.

[0006] The column-type ultrafiltration membrane module provided in this application adopts the following technical solution: A columnar ultrafiltration membrane module includes a column mold cover, a column mold body, and a connecting assembly, wherein the column mold cover is detachably mounted on the top of the column mold body via the connecting assembly; The column mold cover includes a cover body, a water delivery pipe, hollow fiber membrane filaments, and a first connecting block. The cover body has a water outlet on its side. A first chamber is provided between the cover body and the first connecting block. The first connecting block has a plurality of first connecting holes. The hollow fiber membrane filaments are connected to the first chamber through the first connecting holes. The water delivery pipe passes through the top of the cover. One end of the water delivery pipe has a water inlet. The hollow fiber membrane filaments are provided in a plurality of ways. A second connecting block is fixedly installed inside the column mold body. A second chamber is provided between the second connecting block and the first connecting block. A third chamber is provided between the second connecting block and the interior of the column mold body. The water delivery pipe is connected to the third chamber.

[0007] By adopting the above technical solution, when water treatment is required, water can be injected into the delivery pipe from the inlet, and then the water enters the third chamber through the delivery pipe. After entering the third chamber, the water enters the second chamber through the second connecting block, flowing through the second connecting block or its second connecting holes. The water entering the second chamber is filtered on the outside of the hollow fiber membrane fibers. The filtered water enters the first chamber from inside the hollow fiber membrane fibers and is finally discharged from the product water outlet. This ensures that the impurities trapped by filtration only adhere to the outer surface of the hollow fiber membrane fibers, thus facilitating subsequent cleaning and maintenance, and effectively improving the convenience of the ultrafiltration membrane module.

[0008] Optionally, all of the hollow fiber membrane filaments are arranged in a "U" shape, and both ends of the hollow fiber membrane filaments are connected to the first connecting hole.

[0009] By adopting the above technical solution, the contact area between the hollow fiber membrane fibers and the water can be effectively increased. This not only allows for more thorough and complete water filtration, improving the cleaning efficiency of the column ultrafiltration membrane module, but also enables the hollow fiber membrane fibers to adsorb more impurities in the water, thereby enhancing the durability of the column ultrafiltration membrane module.

[0010] Optionally, a connecting sleeve is fixedly installed on the second connecting block. The connecting sleeve passes through the second connecting block and is adapted to the water delivery pipe. The second connecting block has several second connecting holes.

[0011] By adopting the above technical solution, the third chamber can be connected to the water delivery pipe via a connecting sleeve, thereby achieving the effect of water delivery. Furthermore, the connection between the connecting sleeve and the water delivery pipe facilitates the installation of the column-type ultrafiltration membrane module.

[0012] Optionally, the connecting assembly includes a clamp ring and a locking screw. The clamp ring is provided with a fixing part and an adjusting part. One end of the fixing part is rotatably connected to the adjusting part, and the other end of the fixing part is rotatably connected to the locking screw. The other end of the locking screw is rotatably connected to a locking cap. The adjusting part is fixed with a stop member, and the locking screw passes through the stop member. The clamp ring has a locking groove.

[0013] By adopting the above technical solution, when installing the column mold cover and column mold body, the connection between the connecting sleeve and the water delivery pipe can be used to align the column mold cover and column mold body. Then, the clamping ring is fitted onto the connection between the column mold cover and column mold body, and the locking cap is twisted, causing the abutment to continuously push the clamping ring, column mold cover, and column mold body together to tighten against each other, thereby achieving the effect of installing the column mold cover and column mold body.

[0014] Optionally, both the top cover and the body of the column mold are fixed with locking protrusions, which are adapted to the locking grooves.

[0015] By adopting the above technical solution, the locking groove can be fitted onto the locking protrusion, which enables the positioning effect when fixing the column mold cover and the column mold body, thereby improving the convenience of installing the column ultrafiltration membrane module.

[0016] Optionally, a concentrated water inlet is provided on the side of the column mold body, and a drain outlet is provided at the bottom of the column mold body. The drain outlet is arranged opposite to the water inlet, and the water inlet, product water inlet, concentrated water inlet and drain outlet are all interconnected.

[0017] By adopting the above technical solution, when it is necessary to clean the hollow fiber membrane fibers, the first step is to... Open the bottom drain port to discharge wastewater and impurities from inside the mold column. Next, open the concentrate port and inject gas into it. The gas will cause the hollow fiber membrane fibers to agitate and remove the dirt adhering to their surfaces. Then, close the concentrate port and inject flushing fluid into the product water port to rinse the membrane fibers. The flushing fluid enters the hollow fiber membrane fibers from the first chamber and cleans them. Finally, open the drain port again to discharge the flushing fluid and the attached dirt.

[0018] Optionally, both the concentrate outlet and the drain outlet are threaded with sealing caps.

[0019] By adopting the above technical solution, the inlet, product outlet, concentrate outlet and drain outlet can be opened by loosening the sealing cover. When it is necessary to close the inlet, product outlet, concentrate outlet and drain outlet in different scenarios, the sealing cover can be tightened.

[0020] Optionally, the hollow fiber membrane filaments are made of PVDF material.

[0021] By adopting the above technical solutions, polyvinylidene fluoride (PVDF) exhibits high strength, good antifouling properties, good oxidation resistance, and good hydrophilicity. This effectively improves the durability of column-type ultrafiltration membrane modules.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. When water treatment is required, water can be injected into the delivery pipe through the inlet, and then the water enters the third chamber through the delivery pipe. After entering the third chamber, the water enters the second chamber through the second connecting block, flowing through the second connecting block or its second connecting holes. The water entering the second chamber is filtered on the outside of the hollow fiber membrane fibers. The filtered water enters the first chamber through the hollow fiber membrane fibers and is finally discharged from the product outlet. This ensures that the impurities trapped by filtration only adhere to the outer surface of the hollow fiber membrane fibers, thus facilitating subsequent cleaning and maintenance and effectively improving the convenience of the ultrafiltration membrane module. 2. When installing the column mold cover and column mold body, the column mold cover and column mold body can be aligned by using the connecting sleeve and the water delivery pipe. Then, the clamp ring is put onto the connection between the column mold cover and column mold body, and the locking cap is turned so that the abutment continuously pushes the clamp ring, column mold cover and column mold body to abut against each other, thereby achieving the effect of installing the column mold cover and column mold body; 3. The inlet, product outlet, concentrate outlet, and drain outlet can be opened by loosening the sealing cap. When it is necessary to close the inlet, product outlet, concentrate outlet, and drain outlet for different scenarios, the sealing cap can be tightened. Attached Figure Description

[0023] Figure 1 This is an overall schematic diagram of the column-type ultrafiltration membrane assembly in Embodiment 1 of this application.

[0024] Figure 2 This is a cross-sectional schematic diagram of the column-type ultrafiltration membrane module in Embodiment 1 of this application.

[0025] Figure 3 This is a cross-sectional schematic diagram of the top cover of the column mold in Embodiment 1 of this application.

[0026] Figure 4 This is a schematic diagram of the column mold in Embodiment 1 of this application.

[0027] Figure 5 This is a cross-sectional schematic diagram of the column mold body in Embodiment 1 of this application.

[0028] Figure 6 This is a schematic diagram of the connection component in Embodiment 2 of this application.

[0029] Figure 7 This is a schematic diagram of the locking protrusion in Embodiment 2 of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Mold top cover; 101. Producing water outlet; 102. First chamber; 103. Water inlet; 104. First connecting hole; 11. Cover body; 12. Water delivery pipe; 13. Hollow fiber membrane filament; 14. First connecting block; 2. Mold body; 201. Second chamber; 202. Third chamber; 203. Concentrate outlet; 204. Sewage outlet; 205. Second connecting hole; 21. Second connecting block; 22. Sealing cover; 23. Connecting sleeve; 3. Connecting assembly; 301. Fixing part; 302. Adjusting part; 303. Locking groove; 31. Clamping ring; 32. Locking screw; 33. Locking cap; 34. Stopping part; 35. Locking protrusion. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0032] This application discloses a columnar ultrafiltration membrane module. (Refer to...) Figure 1 and Figure 2 The column-type ultrafiltration membrane module includes a column mold cover 1, a column mold body 2, and a connecting assembly 3. The column mold cover 1 is installed on top of the column mold body 2 via the connecting assembly 3; Reference Figure 3 The column mold cover 1 includes a cover body 11, a water delivery pipe 12, hollow fiber membrane filaments 13, and a first connecting block 14. A water outlet 101 is provided on the side of the cover body 11 for water filtered by the hollow fiber membrane filaments 13 to flow out. The water outlet 101 can be opened and closed by a water valve (not shown in the figure). A first chamber 102 is provided between the cover body 11 and the first connecting block 14, and the first chamber 102 is used to hold water that has been filtered by the hollow fiber membrane filaments 13. The water delivery pipe 12 passes through the top of the cover, and one end of the water delivery pipe 12 has an inlet 103 for water to be treated to flow in. The inlet 103 can be opened and closed by a water valve (not shown in the figure). Several hollow fiber membrane filaments 13 are provided, and each hollow fiber membrane filament 13 is arranged in a "U" shape. The "U"-shaped design effectively increases the contact area between the hollow fiber membrane filaments 13 and the water, enabling more thorough and complete water filtration and improving the cleaning efficiency of the column ultrafiltration membrane module. It also allows the hollow fiber membrane filaments 13 to adsorb more impurities from the water, thereby enhancing the durability of the column ultrafiltration membrane module. The hollow fiber membrane filaments 13 are made of PVDF (polyvinylidene fluoride) material. PVDF not only meets food and pharmaceutical safety standards but also possesses advantages such as high mechanical strength, resistance to breakage and deformation, strong anti-fouling properties (which can be modified and optimized), large specific surface area, and high filtration accuracy and flux. This effectively improves the durability of the column ultrafiltration membrane module. The first connecting block 14 has several first connecting holes 104, and both ends of the hollow fiber membrane filaments 13 are connected to these first connecting holes 104, allowing the hollow fiber membrane filaments 13 to communicate with the first chamber 102.

[0033] Reference Figure 4 and Figure 5A second connecting block 21 is fixedly installed inside the column mold body 2. A second chamber 201 is provided between the second connecting block 21 and the first connecting block 14, and a water delivery pipe 12 passes through the second chamber 201. The second chamber 201 is the main chamber for water treatment and is used for water treatment and filtration. A third chamber 202 is provided between the second connecting block 21 and the interior of the column mold body 2, and the water delivery pipe 12 is connected to the third chamber 202. The third chamber 202 is mainly used as a wastewater discharge chamber and a transfer chamber for filtration during cleaning and maintenance. A concentrated water inlet 203 is provided on the side of the column mold body 2, and the concentrated water inlet 203 is threaded with a concentrated water seal for opening and closing. A drain outlet 204 is provided at the bottom of the column mold body 2, which is opposite to the water inlet 103, and the drain outlet 204 is threaded with a drain cover for opening and closing. The drain outlet 204 is used to discharge the filtered waste liquid and waste residue. The concentrate outlet 203 not only assists the drain outlet 204 in discharging filtered wastewater, but also serves as an air blowing port to assist in the cleaning and maintenance of the column ultrafiltration membrane module.

[0034] When cleaning and maintenance of the column ultrafiltration membrane module is required, firstly, the wastewater and impurities inside the column module 2 can be discharged by rotating the drain cover to open the drain port 204 at the bottom. Next, the concentrate port 203 can be opened by rotating the concentrate cover, and gas can be injected into the concentrate port 203. The gas will cause the hollow fiber membrane fibers 13 to agitate, removing the dirt adhering to their surface. Then, the concentrate port 203 is closed, and flushing fluid is injected into the drain port 204 for rinsing. The flushing fluid enters the first chamber 102 through the water delivery pipe 12 and then enters the hollow fiber membrane fibers 13 for cleaning. Finally, the concentrate port 203 is opened again to discharge the flushing fluid and adhering dirt. The inlet 103, product water port 101, concentrate port 203, and drain port 204 are all threaded with sealing caps 22. When it is necessary to change the on / off state of the inlet 103, product water outlet 101, concentrate outlet 203, and drain outlet 204 for different scenarios, this can be done by loosening the sealing cover 22. This can effectively improve the efficiency of the on / off state of the inlet 103, product water outlet 101, concentrate outlet 203, and drain outlet 204.

[0035] Reference Figure 4 and Figure 5 The second connecting block 21 has several second connecting holes 205. These holes allow water from the third chamber 202 to flow into the second chamber 201. A connecting sleeve 23 is fixedly installed on the second connecting block 21, passing through it and fitting into the water delivery pipe 12. The third chamber 202 can communicate with the first chamber 102 via the connecting sleeve 23 and the water delivery pipe 12, thus achieving the effect of delivering water to the third chamber 202. Furthermore, the connection between the connecting sleeve 23 and the water delivery pipe 12 facilitates the installation of the column-type ultrafiltration membrane module.

[0036] The implementation principle of a column-type ultrafiltration membrane module in Embodiment 1 of this application is as follows: When water needs to be treated, water is first injected into the delivery pipe 12 through the inlet 103, and then the water enters the third chamber 202 through the delivery pipe 12. After entering the third chamber 202, the water enters the second chamber 201 through the second connecting hole 205. Next, the water entering the second chamber 201 is filtered by the hollow fiber membrane filaments 13. The filtered water enters the first chamber 102 through the first connecting hole 104 within the hollow fiber membrane filaments 13, and is finally discharged through the product water outlet 101. This ensures that the impurities filtered by the hollow fiber membrane filaments 13 only adhere to the outer surface of the hollow fiber membrane filaments 13.

[0037] In subsequent cleaning and maintenance, firstly, the bottom drain port 204 can be opened to discharge wastewater and impurities inside the column module 2. Next, the concentrate port 203 is opened, and gas is injected into it. The gas causes the hollow fiber membrane fibers 13 to agitate, removing the dirt adhering to their surface. Then, the concentrate port 203 is closed, and flushing fluid is injected into the product water port 101 for rinsing. The flushing fluid enters the hollow fiber membrane fibers 13 from the first chamber 102 and cleans them. Finally, the drain port 204 is opened again to discharge the flushing fluid and adhering dirt. This allows for cleaning and maintenance of the hollow fiber membrane fibers 13 without disassembling the column ultrafiltration membrane module, effectively improving the convenience of the ultrafiltration membrane module.

[0038] Example 2: Embodiment 2 of this application discloses a connection component, which, in addition to including all the technical features of the connection component 3 in Embodiment 1, also includes the following technical features: Reference Figure 6 and Figure 7 The connecting assembly 3 includes a clamping ring 31 and a locking screw 32. The clamping ring 31 is provided with a fixing part 301 and an adjusting part 302. One end of the fixing part 301 is rotatably connected to the adjusting part 302, and the other end of the fixing part 301 is rotatably connected to the locking screw 32. The other end of the locking screw 32 is rotatably connected to a locking cap 33, and the locking cap 33 and the locking screw 32 are threaded together. The adjusting part 302 is fixed with a stop 34, and the locking screw 32 can pass through the stop 34. By twisting the locking cap 33, the locking cap 33 continuously presses against the stop 34, thereby locking the clamping ring 31. The clamping ring 31 has a locking groove 303. Both the upper cover 1 and the mold body 2 are fixed with locking protrusions 35. The locking groove 303 and the locking protrusions 35 are adapted to fit together so that the locking protrusions 35 can be tightly embedded in the locking groove 303.

[0039] The implementation principle of a connecting component in Embodiment 2 of this application is as follows: When the column ultrafiltration membrane module needs to be disassembled, the locking cap 33 can be loosened, so that the locking cap 33 is no longer in a tight relationship with the abutment member 34. This allows the clamping ring 31 to no longer be locked, thus completing the disassembly between the column mold cover 1 and the column mold body 2. When reassembly is required, the column mold cover 1 and the column mold body 2 are aligned, and the clamping ring 31 is fitted onto the connection between the column mold cover 1 and the column mold body 2, so that the locking groove 303 can engage with the locking protrusion 35. Then, the locking cap 33 is twisted, causing the abutment member 34 to continuously push the clamping ring 31, the column mold cover 1, and the column mold body 2 to abut against each other, thereby achieving the effect of installing the column mold cover 1 and the column mold body 2. This improves the convenience of disassembling and assembling the column ultrafiltration membrane module.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A columnar ultrafiltration membrane module, characterized in that: It includes a column mold top cover (1), a column mold body (2) and a connecting assembly (3), wherein the column mold top cover (1) is detachably installed on the top of the column mold body (2) via the connecting assembly (3); The column mold cover (1) includes a cover body (11), a water conveying pipe (12), hollow fiber membrane filaments (13), and a first connecting block (14). The cover body (11) has a water outlet (101) on its side. A first chamber (102) is provided between the cover body (11) and the first connecting block (14). The first connecting block (14) has a plurality of first connecting holes (104). The hollow fiber membrane filaments (13) are connected to the first chamber (102) through the first connecting holes (104). The water conveying pipe (12) passes through the top of the cover. One end of the water conveying pipe (12) has a water inlet (103). The hollow fiber membrane filaments (13) have a plurality of holes. A second connecting block (21) is fixedly installed inside the column mold (2). A second chamber (201) is provided between the second connecting block (21) and the first connecting block (14). A third chamber (202) is provided between the second connecting block (21) and the inside of the column mold (2). The water delivery pipe (12) is connected to the third chamber (202).

2. The column-type ultrafiltration membrane module according to claim 1, characterized in that: The hollow fiber membrane filaments (13) are all arranged in a "U" shape, and both ends of the hollow fiber membrane filaments (13) are connected to the first connecting hole (104).

3. The column-type ultrafiltration membrane module according to claim 1, characterized in that: The second connecting block (21) is fixedly installed with a connecting sleeve (23), the connecting sleeve (23) passes through the second connecting block (21), the connecting sleeve (23) is adapted to the water conveying pipe (12), and the second connecting block (21) has a plurality of second connecting holes (205).

4. A columnar ultrafiltration membrane module according to claim 1, characterized in that: The connecting assembly (3) includes a clamp ring (31) and a locking screw (32). The clamp ring (31) is provided with a fixing part (301) and an adjusting part (302). One end of the fixing part (301) is rotatably connected to the adjusting part (302), and the other end of the fixing part (301) is rotatably connected to the locking screw (32). The other end of the locking screw (32) is rotatably connected to a locking cap (33). The adjusting part (302) is fixed with a stop (34), and the locking screw (32) passes through the stop (34). The clamp ring (31) has a locking groove (303).

5. A columnar ultrafiltration membrane module according to claim 1, characterized in that: Both the upper cover (1) and the body (2) of the column mold are fixed with locking protrusions (35), which are adapted to the locking grooves (303).

6. A columnar ultrafiltration membrane module according to claim 1, characterized in that: The column mold body (2) has a concentrated water inlet (203) on its side and a drain outlet (204) at its bottom. The drain outlet (204) is arranged opposite to the water inlet (103). The water inlet (103), the water production outlet (101), the concentrated water inlet (203) and the drain outlet (204) are all interconnected.

7. A columnar ultrafiltration membrane module according to claim 6, characterized in that: Both the concentrate outlet (203) and the drain outlet (204) are threaded with sealing caps (22).

8. A columnar ultrafiltration membrane module according to claim 1, characterized in that: The hollow fiber membrane filament (13) is made of PVDF material.

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