MABR membrane assembly easy to package

Abstract

The invention relates to a simply packaged MABR membrane module, which comprises a lower gas delivery pipe, an upper support pipe and a plurality of hollow fiber membrane filaments, the bottoms of the membrane filaments are connected with the lower gas delivery pipe, and the tops of the membrane filaments are connected with the upper support pipe; the lower air delivery pipe comprises an air delivery pipe, a first water bag pipe and a second water bag pipe, a plurality of first through holes are formed in the upper side face of the air delivery pipe, and the air delivery pipe is connected with an external air source through a pipeline. The first water bag pipe is arranged above the air conveying pipe, and the inner space of the first water bag pipe directly faces the part, provided with the first through hole, of the air conveying pipe; the second water bag pipe is coated outside the first water bag pipe; a plurality of second through holes are formed in the top of the first water bag pipe, a plurality of third through holes are formed in the top of the second water bag pipe, and the bottoms of the membrane filaments sequentially penetrate through the third through holes, the second through holes and the first through holes, so that the membrane filaments are communicated with the inner space of the air conveying pipe; water is introduced into the first water bag pipe and the second water bag pipe, and a large amount of gas is prevented from entering the first water bag pipe and the second water bag pipe from the first through hole and the second through hole.

Description

Technical Field

[0001] The present invention belongs to the technical field of MABR membrane modules, and particularly relates to a simply encapsulated MABR membrane module. Background Art

[0002] The MABR process is a new type of sewage treatment technology that combines an oxygen-permeable hollow fiber membrane and a biofilm. The principle is that air or oxygen is input into the hollow fiber membrane, the membrane surface is loaded with a biofilm, and the air or oxygen in the membrane diffuses outward to transfer oxygen to the biofilm without bubbles, and pollutants diffuse into the biofilm from the outside of the biofilm and are gradually consumed. Due to the oxygen-permeable characteristics of the MABR membrane, a biochemical structure of aerobic microorganisms, facultative anaerobic microorganisms, and anaerobic microorganisms is sequentially formed from the inside to the outside on the membrane surface. Air or oxygen diffuses from the inside of the MABR membrane to the inside of the biofilm and promotes nitrification, oxidizing ammonia nitrogen into nitrate; as oxygen is gradually consumed from the inside to the outside, a denitrification zone is formed outside the biofilm, thereby realizing simultaneous nitrification and denitrification.

[0003] Currently, the form of the MABR hollow fiber membrane module is that an air delivery pipe is provided at the bottom of the membrane module, the bottom of the membrane filaments is inserted into the air delivery pipe, and then the gap between the bottom of the membrane filaments and the air delivery pipe is encapsulated with glue. An external air source inputs air or oxygen into the air delivery pipe, and the gas then enters each membrane filament; the top of the membrane filaments is closed and is uniformly encapsulated on the top support pipe or support rod with glue to keep the membrane filaments in a vertical state. This traditional glue encapsulation method is relatively cumbersome. After applying the glue, it is necessary to wait for several days. After the glue solidifies, a gas test experiment is carried out. If there is a leakage point, it is necessary to reapply the glue. Summary of the Invention

[0004] In view of the above problems, the present invention provides a simply encapsulated MABR membrane module, which includes a lower air delivery pipe, an upper support pipe, and a plurality of hollow fiber membrane filaments. The bottom of the membrane filaments is connected to the lower air delivery pipe, and the top is connected to the upper support pipe to keep the membrane filaments in a vertical state;

[0005] The lower air delivery pipe includes an air delivery pipe, a first water bag pipe, and a second water bag pipe. A plurality of first through holes are provided on the upper side surface of the air delivery pipe for connecting the bottom of the membrane filaments. The air delivery pipe is connected to an external air source through a pipeline to provide air or oxygen for the membrane filaments; the first water bag pipe is provided above the air delivery pipe, and the internal space of the first water bag pipe directly faces the part of the air delivery pipe provided with the first through holes; the second water bag pipe is coated outside the first water bag pipe; a plurality of second through holes are provided at the top of the first water bag pipe, and a plurality of third through holes are provided at the top of the second water bag pipe. The bottom of the membrane filaments sequentially passes through the third through holes, the second through holes, and the first through holes to connect the internal space of the membrane filaments to the air delivery pipe; water is introduced into the internal spaces of the first water bag pipe and the second water bag pipe to prevent a large amount of gas from entering the first water bag pipe and the second water bag pipe through the first through holes and the second through holes.

[0006] Optionally, the lower gas pipeline is made of a flexible material, such as rubber; the gas pipeline, the first water sac pipeline, and the second water sac pipeline are parallel to each other, have the same length, and are stacked in sequence from bottom to top; the positions of the third through hole, the second through hole, and the first through hole corresponding to the same membrane filament are vertically corresponding and arranged in a straight line, facilitating the membrane filament to penetrate through the third through hole, the second through hole, and the first through hole.

[0007] The bottom of the first water sac pipeline has a first opening, and both sides of the first opening are fixedly connected to the upper side of the gas pipeline to enclose the internal space of the first water sac pipeline; the bottom of the second water sac pipeline has a second opening, and both sides of the second opening are respectively fixedly connected to the two side surfaces of the first water sac pipeline to enclose the internal space of the second water sac pipeline.

[0008] Further optionally, both ends of the first water sac pipeline are closed, the length of the first opening is equal to or slightly shorter than the length of the first water sac pipeline, and all the first through holes are between both sides of the first opening, so that the first water sac pipeline wraps all the first through holes inside the first water sac pipeline.

[0009] Further optionally, a first sealing portion is provided at the position of the bottom of the membrane filament corresponding to the first through hole. The first sealing portion includes a tubular sleeve one at the upper part and a skirt-like sleeve one at the lower part. The tubular sleeve one is cylindrical, and the inner wall of the tubular sleeve one is pasted on the outer wall of the membrane filament; the skirt-like sleeve one surrounds the corresponding first through hole and covers the upper side of the gas pipeline. The tubular sleeve one and the skirt-like sleeve one are integrally formed.

[0010] Further optionally, at least one end of the first water sac pipeline is connected to an external water source through a pipeline to supply water to the first water sac pipeline.

[0011] Optionally, a plurality of water spray nozzles are provided on the side surface of the first water sac pipeline. The plurality of water spray nozzles are evenly arranged along the length direction of the first water sac pipeline. The water spray nozzles are equipped with valves to control the opening and closing of the water spray nozzles; the water spray nozzles are all outside the second water sac pipeline and are used to output the excess water in the first water sac pipeline to the water environment outside the membrane module.

[0012] Optionally, both ends of the second water sac pipeline are closed, the length of the second opening is equal to or slightly shorter than the length of the second water sac pipeline, and all the second through holes of the first water sac pipeline are between both sides of the second opening, so that the second water sac pipeline wraps all the second through holes inside the second water sac pipeline;

[0013] Both sides of the second opening are fixedly connected to the lower part of the side surface of the first water sac pipeline but do not cover the water spray nozzles.

[0014] Further optionally, a second sealing portion is provided at a position corresponding to the second through hole at the bottom of the membrane filament. The structure of the second sealing portion is the same as that of the first sealing portion, that is, the second sealing portion includes a tubular sleeve two at the upper part and a skirt sleeve two at the lower part. The tubular sleeve two is cylindrical, and the inner wall of the tubular sleeve two is pasted on the outer wall of the membrane filament; the skirt sleeve two surrounds the corresponding second through hole and covers the upper side of the first water bladder tube. The tubular sleeve two and the skirt sleeve two are integrally formed.

[0015] Further optionally, at least one end of the second water bladder tube is connected to an external water source through a pipeline to supply water to the second water bladder tube.

[0016] Further optionally, a third sealing portion is provided at a position corresponding to the third through hole at the bottom of the membrane filament. The structure of the third sealing portion is the same as that of the first sealing portion, and the working mechanism is also the same, that is, the third sealing portion includes a tubular sleeve three at the upper part and a skirt sleeve three at the lower part. The tubular sleeve three is cylindrical, and the inner wall of the tubular sleeve three is pasted on the outer wall of the membrane filament; the skirt sleeve three surrounds the corresponding third through hole and covers the upper side of the second water bladder tube. The tubular sleeve three and the skirt sleeve three are integrally formed.

[0017] Optionally, a plurality of through holes are provided on the lower side of the upper support tube for fixing the top end of the membrane filament. The top end of the membrane filament is closed, so that the gas inside the membrane filament is released from the membrane holes on the side of the membrane filament.

[0018] The upper support tube is made of a flexible material, such as rubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the simple-packaged MABR membrane module;

[0020] Figure 2 is a split diagram of the lower air delivery pipe;

[0021] Figure 3 is a schematic diagram of the membrane filament inserted into the lower air delivery pipe;

[0022] Figure 4 is a schematic diagram of the first sealing portion.

[0023] In the drawings, 1 - lower air delivery pipe, 2 - upper support tube, 3 - membrane filament, 4 - air delivery gas pipe, 5 - first water bladder tube, 6 - second water bladder tube, 7 - first through hole, 8 - second through hole, 9 - third through hole, 10 - first opening, 11 - second opening, 12 - first sealing portion, 13 - tubular sleeve one, 14 - skirt sleeve one, 15 - water spraying port, 16 - second sealing portion, 17 - third sealing portion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] This embodiment provides a simple-packaged MABR membrane module, as Figures 1 - 4As shown in the figure, it includes a lower gas delivery pipe 1, an upper support pipe 2, and several hollow fiber membrane filaments. The bottom of the membrane filament 3 is connected to the lower gas delivery pipe 1, and the top is connected to the upper support pipe 2 to keep the membrane filament 3 in a vertical state.

[0025] The lower gas delivery pipe 1 includes a gas delivery pipe 4, a first water sac pipe 5, and a second water sac pipe 6. Several first through holes 7 are provided on the upper side surface of the gas delivery pipe 4 for connecting the bottom of the membrane filaments. The gas delivery pipe 4 is connected to an external gas source through a pipeline to supply air or oxygen to the membrane filaments. The first water sac pipe 5 is arranged above the gas delivery pipe 4, and the internal space of the first water sac pipe 5 directly faces the part of the gas delivery pipe 4 where the first through holes 7 are provided. The second water sac pipe 6 is wrapped outside the first water sac pipe 5. Several second through holes 8 are provided at the top of the first water sac pipe 5, and several third through holes 9 are provided at the top of the second water sac pipe 6. The bottom of the membrane filament 3 passes through the third through hole 9, the second through hole 8, and the first through hole 7 in sequence, so that the membrane filament 3 communicates with the internal space of the gas delivery pipe 4. Water is introduced into the internal spaces of the first water sac pipe 5 and the second water sac pipe 6 to prevent a large amount of gas from entering the first water sac pipe 5 and the second water sac pipe 6 through the first through hole 7 and the second through hole 8.

[0026] Optionally, the lower gas delivery pipe 1 is made of a flexible material, such as rubber. The gas delivery pipe 4, the first water sac pipe 5, and the second water sac pipe 6 are parallel to each other, have the same length, and are stacked in sequence from bottom to top. The positions of the third through hole 9, the second through hole 8, and the first through hole 7 corresponding to the same membrane filament are vertically corresponding and arranged in a straight line to facilitate the membrane filament to penetrate through the third through hole 9, the second through hole 8, and the first through hole 7.

[0027] The bottom of the first water sac pipe 5 has a first opening 10, and both sides of the first opening 10 are fixedly connected to the upper side surface of the gas delivery pipe 4 to enclose the internal space of the first water sac pipe 5. The bottom of the second water sac pipe 6 has a second opening 11, and both sides of the second opening 11 are respectively fixedly connected to the two side surfaces of the first water sac pipe 5 to enclose the internal space of the second water sac pipe 6.

[0028] Further optionally, the gas delivery pipe 4 is a conventional circular tube type gas pipe. At least one end of the gas delivery pipe 4 is connected to an external gas source through a pipeline to supply gas to the entire membrane module. Several connection sites for the external gas source can also be evenly arranged on both ends and the side surfaces between the two ends of the gas delivery pipe 4, so that the gas delivery pipe 4 uniformly intakes gas in its own length direction, thereby uniformly supplying gas to all membrane filaments.

[0029] Further optionally, both ends of the first water sac pipe 5 are closed. The length of the first opening 10 is equal to or slightly shorter than the length of the first water sac pipe 5, and all the first through holes 7 are between both sides of the first opening 10, so that the first water sac pipe 5 wraps all the first through holes 7 inside the first water sac pipe 5.

[0030] When no membrane filament is inserted, the internal space of the first water bladder tube 5 can communicate with the internal space of the gas transmission trachea 4 through the first through hole 7. The shape of the first water bladder tube 5 is not limited and can be a circular tube type. The first water bladder tube 5 and the gas transmission trachea 4 can be integrally formed to avoid water leakage at the first opening 10.

[0031] Further optionally, a first sealing portion 12 is provided at the position of the bottom of the membrane filament corresponding to the first through hole 7. The first sealing portion 12 includes a tubular sleeve 13 at the upper part and a skirt sleeve 14 at the lower part. The tubular sleeve 13 is cylindrical, and the inner wall of the tubular sleeve 13 is adhered to the outer wall of the membrane filament; the skirt sleeve 14 surrounds the corresponding first through hole 7 and covers the upper side surface of the gas transmission trachea 4. The tubular sleeve 13 and the skirt sleeve 14 are integrally formed.

[0032] Further optionally, at least one end of the first water bladder tube 5 is connected to an external water source through a pipeline to supply water to the first water bladder tube 5; several sites for connecting to the external water source can also be evenly arranged on both ends and the side surface between the two ends of the first water bladder tube 5, so that the first water bladder tube 5 can be evenly supplied with water in its own length direction, thereby evenly supplying water to the first water bladder tube 5.

[0033] After the membrane filament is inserted into the first through hole 7, if the first through hole 7 is not adhered to the membrane filament, gas will leak out from the edge of the first through hole 7 and thus enter the inside of the first sealing portion 12. Since the inner wall of the tubular sleeve 13 is adhered to the outer wall of the membrane filament, the gas cannot leak upward from the tubular sleeve 13. The skirt sleeve 14 is not connected to the upper side surface of the gas transmission trachea 4, and the gas can only leak laterally from the bottom surface of the skirt sleeve 14. Although the inner wall of the tubular sleeve 13 needs to be bonded to the membrane filament, the tubular sleeve 13 is sleeved outside the membrane filament, which is a structure similar to an inner and outer sleeve. The inner wall of the tubular sleeve 13 has a certain area, that is, the bonding between surfaces is relatively simple.

[0034] Clear water is introduced into the first water bladder tube 5, and the water pressure exerts pressure on the inner wall of the first water bladder tube 5 in all directions and also presses downward on the skirt sleeve 14, so that the lower surface of the skirt sleeve 14 closely adheres to the upper side surface of the gas transmission trachea 4. Except for the second through hole 8, the only first through hole 7 below the skirt sleeve 14 in the internal space of the first water bladder tube 5. At the edge of the first through hole 7 and the gas overflowing upward, the water pressure exerts downward pressure through the surface of the skirt sleeve 14. As long as the air pressure in the gas transmission trachea 4 and the water pressure in the first water bladder tube 5 are reasonably controlled, the water pressure can be used to prevent air leakage at the first through hole 7 to a certain extent, and the air pressure can be used to prevent the water in the first water bladder tube 5 from leaking into the gas transmission trachea 4.

[0035] Optionally, a plurality of water spray nozzles 15 are provided on the side surface of the first water bladder tube 5. The plurality of water spray nozzles 15 are evenly arranged along the length direction of the first water bladder tube 5. The water spray nozzles 15 are equipped with valves to control the opening and closing of the water spray nozzles 15. The water spray nozzles 15 are all outside the second water bladder tube 6 and are used to output the excess water in the first water bladder tube 5 to the water environment outside the membrane module.

[0036] A small part of the gas in the gas transmission gas pipe 4 will overflow into the first water bladder tube 5 through the first through hole 7 and be evenly dispersed in the water in the first water bladder tube 5. This part of the gas will increase the pressure in the first water bladder tube 5, causing this part of the gas and the water pressure to press the first skirt sleeve 14 downward together, forming a supplementary compression on the first through hole 7, so that less and less gas overflows through the first through hole 7.

[0037] When the pressure in the first water bladder tube 5 is too high, open the valve of the water spray nozzle 15 to discharge part of the gas-water mixture fluid into the lower gas transmission pipe 1, forming a small amount of air supplementation or aeration to the sewage outside the membrane module, which is beneficial to finely adjust the oxygen content in the sewage environment and improve the biochemical treatment efficiency.

[0038] Optionally, both ends of the second water bladder tube 6 are closed. The length of the second opening 11 is equal to or slightly shorter than the length of the second water bladder tube 6. All the second through holes 8 of the first water bladder tube 5 are between the two sides of the second opening 11, so that the second water bladder tube 6 covers all the second through holes 8 inside the second water bladder tube 6.

[0039] Both sides of the second opening 11 are fixedly connected to the lower part of the side surface of the first water bladder tube 5, but do not cover the water spray nozzles 15.

[0040] When the membrane filaments are not inserted, the internal space of the second water bladder tube 6 can communicate with the internal space of the first water bladder tube 5 through the second through holes 8. The shape of the second water bladder tube 6 is not limited and can be a circular tube type. The first water bladder tube 5 and the second water bladder tube 6 can be integrally formed to avoid water leakage at the second opening 11.

[0041] Further optionally, a second sealing portion 16 is provided at the bottom of the membrane filament corresponding to the position of the second through hole 8. The structure of the second sealing portion 16 is the same as that of the first sealing portion 12, that is, the second sealing portion 16 includes an upper tubular sleeve two and a lower skirt sleeve two. The tubular sleeve two is cylindrical, and the inner wall of the tubular sleeve two is pasted on the outer wall of the membrane filament. The skirt sleeve two surrounds the corresponding second through hole 8 and covers the upper side surface of the first water bladder tube 5. The tubular sleeve two and the skirt sleeve two are integrally formed.

[0042] Further optionally, at least one end of the second water sac tube 6 is connected to an external water source through a pipeline to supply water to the second water sac tube 6; several water supply points connected to the external water source can also be evenly arranged on both ends and the side surfaces between the two ends of the second water sac tube 6, so that the second water sac tube 6 can be evenly supplied with water in its own length direction, thereby evenly supplying water to the second water sac tube 6.

[0043] After the membrane filament is inserted into the second through hole 8, if the second through hole 8 is not adhered to the membrane filament, liquid (or gas-liquid mixture) will leak out from the edge of the second through hole 8 and thus enter the inside of the second sealing portion 16. Since the inner wall of the second tubular sleeve is adhered to the outer wall of the membrane filament, gas cannot leak upward from the second tubular sleeve, and the second skirt sleeve is not connected to the upper side surface of the first water sac tube 5, so the liquid can only leak laterally from the bottom surface of the second skirt sleeve.

[0044] Clear water is introduced into the second water sac tube 6, and the water pressure presses in all directions on the inner wall of the second water sac tube 6 and also presses downward on the second skirt sleeve, so that the lower surface of the second skirt sleeve closely adheres to the upper side surface of the first water sac tube 5. Except for the third through hole 9, the internal space of the second water sac tube 6 only has the second through hole 8 below the second skirt sleeve. At the edge of the second through hole 8 and the upward overflowing liquid, the water pressure presses downward through the surface of the second skirt sleeve. As long as the water pressures in the second water sac tube 6 and the first water sac tube 5 are reasonably controlled, the water leakage at the second through hole 8 can be blocked to a certain extent by using the water pressure.

[0045] Since both the second water sac tube 6 and the first water sac tube 5 are filled with liquid, it doesn't matter if a small amount of liquid in the first water sac tube 5 enters the second water sac tube 6. The main purpose of the present invention is to form a downward water pressure above the second through hole 8 to seal the internal space of the first water sac tube 5, which is beneficial to concentrating the water pressure in the first water sac tube 5 to press downward on the first skirt sleeve 14 and strengthening the sealing of the gas transmission gas pipe 4.

[0046] Further optionally, a third sealing portion 17 is provided at the bottom of the membrane filament corresponding to the position of the third through hole 9. The structure of the third sealing portion 17 is the same as that of the first sealing portion 12, and the action mechanism is also the same, that is, the third sealing portion 17 includes an upper tubular sleeve three and a lower skirt sleeve three. The tubular sleeve three is cylindrical, and the inner wall of the tubular sleeve three is adhered to the outer wall of the membrane filament; the skirt sleeve three surrounds the corresponding third through hole 9 and covers the upper side surface of the second water sac tube 6, and the tubular sleeve three and the skirt sleeve three are integrally formed.

[0047] Since the lower gas transmission pipe 1 is generally located at the lower part of the water treatment device, the outer side surface of the second water sac tube 6 bears the water pressure of the sewage in the water treatment device, and this water pressure presses downward on the upper surface of the skirt sleeve three to seal the third through hole 9. Since both the inside and outside of the second water sac tube 6 are filled with liquid, for the sealing of the third through hole 9, it is not necessary to prevent the second water sac tube 6 from leaking outward, but only to form a downward water pressure above the third through hole 9 to promote the pressing on the second through hole 8.

[0048] Optionally, a plurality of through holes are provided on the lower side of the upper support pipe 2 for fixing the top end of the membrane filaments. The top end of the membrane filaments is closed, so that the gas inside the membrane filaments is released from the membrane holes on the side of the membrane filaments. The connection mode between the upper support pipe 2 and the membrane filaments can adopt a conventional bonding mode. Since the top end of the membrane filaments is not required to be open, the bonding of the upper support pipe 2 is easier.

[0049] The upper support pipe 2 is made of a flexible material, such as rubber. Both the upper support pipe 2 and the lower gas delivery pipe 1 of the present invention are flexible, so that the membrane module has the structural feature of being easy to move. The upper support pipe 2 and the lower gas delivery pipe 1 can be bent into various curved shapes, such as square, triangular, diamond-shaped, S-shaped, circular, spiral-shaped, etc., to facilitate the full contact between the membrane filaments and the sewage and improve the sewage treatment efficiency.

[0050] Upper and lower moving tracks can also be provided. The upper support pipe 2 is slidably connected to the upper moving track, and the lower gas delivery pipe 1 is slidably connected to the lower moving track, so that the membrane filaments can move in the sewage, further improving the sewage treatment efficiency.

Claims

1. A simply encapsulated MABR membrane module, characterized in that, It includes a lower gas delivery pipe, an upper support pipe and a number of hollow fiber membrane filaments. The bottom of the membrane filaments is connected to the lower gas delivery pipe, and the top is connected to the upper support pipe to keep the membrane filaments in a vertical state. The lower gas delivery pipe includes a gas delivery trachea, a first water sac pipe and a second water sac pipe. A number of first through holes are provided on the upper side of the gas delivery trachea for connecting the bottom of the membrane filaments. The gas delivery trachea is connected to an external gas source through a pipeline to provide air or oxygen for the membrane filaments. The first water sac pipe is arranged above the gas delivery trachea, and the internal space of the first water sac pipe directly faces the part of the gas delivery trachea where the first through holes are provided. The second water sac pipe is coated outside the first water sac pipe. A number of second through holes are provided at the top of the first water sac pipe, and a number of third through holes are provided at the top of the second water sac pipe. The bottom of the membrane filaments sequentially passes through the third through holes, the second through holes and the first through holes, so that the membrane filaments are communicated with the internal space of the gas delivery trachea. Water is introduced into the internal spaces of the first water sac pipe and the second water sac pipe to prevent a large amount of gas from entering the first water sac pipe and the second water sac pipe through the first through holes and the second through holes.

2. The simply encapsulated MABR membrane module according to claim 1, characterized in that, The lower gas delivery pipe is made of a flexible material; the gas delivery trachea, the first water sac pipe and the second water sac pipe are parallel to each other and are stacked in sequence from bottom to top; the positions of the third through holes, the second through holes and the first through holes corresponding to the same membrane filament are vertically corresponding and arranged in a straight line, which is convenient for the membrane filaments to penetrate through the third through holes, the second through holes and the first through holes. The bottom of the first water sac pipe has a first opening, and both sides of the first opening are fixedly connected to the upper side of the gas delivery trachea to enclose the internal space of the first water sac pipe; the bottom of the second water sac pipe has a second opening, and both sides of the second opening are respectively fixedly connected to the two side surfaces of the first water sac pipe to enclose the internal space of the second water sac pipe.

3. The simply encapsulated MABR membrane module according to claim 2, wherein Both ends of the first water sac pipe are closed, the length of the first opening is equal to or slightly shorter than the length of the first water sac pipe, and all the first through holes are between both sides of the first opening, so that the first water sac pipe encloses all the first through holes inside the first water sac pipe.

4. The simply encapsulated MABR membrane module according to claim 3, wherein, A first sealing part is provided at the position of the bottom of the membrane filament corresponding to the first through hole. The first sealing part includes a tubular sleeve one at the upper part and a skirt sleeve one at the lower part. The tubular sleeve one is cylindrical, and the inner wall of the tubular sleeve one is pasted on the outer wall of the membrane filament; the skirt sleeve one surrounds the corresponding first through hole and covers the upper side of the gas delivery trachea. The tubular sleeve one and the skirt sleeve one are integrally formed.

5. The simply encapsulated MABR membrane module according to claim 3, wherein At least one end of the first water sac pipe is connected to an external water source through a pipeline to supply water to the first water sac pipe. A number of water spray nozzles are provided on the side surface of the first water sac pipe. The number of water spray nozzles is evenly arranged along the length direction of the first water sac pipe. The water spray nozzles are equipped with valves to control the opening and closing of the water spray nozzles; the water spray nozzles are all outside the second water sac pipe and are used to output the excess water in the first water sac pipe to the water environment outside the membrane module.

6. The simply encapsulated MABR membrane module according to claim 2, wherein Both ends of the second water sac pipe are closed, the length of the second opening is equal to or slightly shorter than the length of the second water sac pipe, and all the second through holes of the first water sac pipe are between both sides of the second opening, so that the second water sac pipe encloses all the second through holes inside the second water sac pipe; both sides of the second opening are fixedly connected to the lower part of the side surface of the first water sac pipe but do not cover the water spray nozzles.

7. The simply encapsulated MABR membrane module according to claim 6, characterized in that A second blocking portion is provided at the position of the bottom of the membrane filament corresponding to the second through hole. The second blocking portion includes a tubular sleeve two at the upper part and a skirt-like sleeve two at the lower part. The tubular sleeve two is cylindrical, and the inner wall of the tubular sleeve two is adhered to the outer wall of the membrane filament; the skirt-like sleeve two surrounds the corresponding second through hole and covers the upper side surface of the first water sac tube. The tubular sleeve two and the skirt-like sleeve two are integrally formed.

8. The simply encapsulated MABR membrane module according to claim 6, wherein, At least one end of the second water sac tube is connected to an external water source through a pipeline to supply water to the second water sac tube.

9. The simply encapsulated MABR membrane module according to claim 6, characterized in that, A third blocking portion is provided at the position of the bottom of the membrane filament corresponding to the third through hole. The third blocking portion includes a tubular sleeve three at the upper part and a skirt-like sleeve three at the lower part. The tubular sleeve three is cylindrical, and the inner wall of the tubular sleeve three is adhered to the outer wall of the membrane filament; the skirt-like sleeve three surrounds the corresponding third through hole and covers the upper side surface of the second water sac tube. The tubular sleeve three and the skirt-like sleeve three are integrally formed.

10. The simple-packaged MABR membrane module according to claim 1, wherein A plurality of through holes are provided on the lower side surface of the upper support tube for fixing the top end of the membrane filament. The top end of the membrane filament is closed, so that the gas inside the membrane filament is released from the membrane holes on the side of the membrane filament; the upper support tube is made of a flexible material.

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