A high-precision integrated hollow fiber gas separation membrane spinning machine

Abstract

The present invention discloses a high-precision integrated hollow fiber gas separation membrane spinning machine, the spinning device includes a spinning head and a spinning support, the spinning support includes an adjusting support, the adjusting support includes a vertically arranged support, a moving block located on one side of the support, a moving component that pushes the moving block to move up and down, and a temperature and humidity control component fixed on the moving block, the temperature and humidity control component includes a shelf block, a heating block, and a humidity control block arranged in sequence from top to bottom. In the present invention, the use of a vacuum pump removes the residual tiny bubbles in the primary membrane liquid kettle, the secondary membrane liquid kettle, and the core liquid kettle, the spinning support includes a temperature function and a dehumidification function, so that the membrane liquid can maintain a certain temperature when injected into the spinning head to ensure that the membrane liquid is extruded from the spinning head in the optimal fluid form; the humidity of the extruded liquid is effectively controlled after extrusion, so that the quality of the gas separation membrane is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of spinning machines, and in particular to a high-precision integrated hollow fiber gas separation membrane spinning machine. Background Art

[0002] The hollow fiber membrane is fibrous in appearance and hollow inside. Only the outer skin of the asymmetric hollow fiber membrane has a separation effect, and the rest of the membrane only plays a self-supporting role. Compared with other types of membranes, the asymmetric hollow fiber membrane assembly has good separation effect, high efficiency, high filling density, small footprint, obvious investment returns, and extremely broad prospects. Due to these advantages, the membrane products currently used for gas separation all use this type of asymmetric hollow fiber membrane. Therefore, there is an urgent need for a high-precision hollow fiber membrane spinning machine that can continuously and automatically produce gas separation membranes.

[0003] The technical difficulty in manufacturing asymmetric hollow fiber membranes for gas separation by dry-wet spinning is to ensure the formation of the special membrane structure required for gas separation, that is, (i) the skin of the asymmetric membrane must be dense and defect-free to effectively separate different types of gas molecules; (ii) the thickness of the skin needs to be at the nanoscale to reduce the resistance to gas separation; and (iii) the lower support layer formed at the same time as the membrane skin needs to have a sponge-like porous morphology to further reduce the resistance of gas molecules passing through the membrane. In order to simultaneously achieve the above three very demanding requirements for membrane morphology, it is necessary to control the operating parameters of many spinning and membrane making processes very precisely. The main technical difficulties include: before the membrane liquid and the core liquid enter the spinning head, the tiny impurity particles in the liquid must be effectively filtered, and the tiny bubbles remaining in the membrane liquid and the core liquid must be removed; when the membrane liquid is injected into the spinning head, it must maintain a certain temperature to ensure that the membrane liquid is squeezed out of the spinning head in the optimal fluid form; after the membrane liquid and the core liquid are squeezed out of the spinning head, they do not directly enter the condensation tank, but first pass through a section of air below the spinning head before entering the condensation tank. The humidity of this section of air will have a great impact on the quality of the gas separation membrane product, so the humidity of this section of air also needs to be controlled. Summary of the invention

[0004] The object of the present invention is to provide a high-precision integrated hollow fiber gas separation membrane spinning machine.

[0005] The innovation of the present invention lies in that the residual tiny bubbles in the primary membrane liquid kettle, the secondary membrane liquid kettle and the core liquid kettle are removed by using a vacuum pump, and the spinning support includes a temperature function and a dehumidification function, so that the membrane liquid can maintain a certain temperature when injected into the spinning head to ensure that the membrane liquid is extruded from the spinning head in the optimal fluid form; by flushing with nitrogen and adjusting the distance of the extruded liquid from the spinning head to the condensation tank, the distance of the "air gap" is adjusted, and the humidity of the extruded liquid is effectively controlled after extrusion, thereby ensuring the quality of the gas separation membrane.

[0006] To achieve the above-mentioned purpose of the invention, the technical scheme of the present invention is: a high-precision integrated hollow fiber gas separation membrane spinning machine, including a membrane liquid feeding device, a core liquid feeding device, a spinning device, a condensation tank, a collection tank and a washing tank, the membrane liquid feeding device includes a first-level membrane liquid kettle, a membrane liquid filter, a second-level membrane liquid kettle, and a membrane liquid injection pump connected in sequence, the core liquid feeding device includes a core liquid kettle, a core liquid filter and a core liquid injection pump connected in sequence, the first-level membrane liquid kettle, the second-level membrane liquid kettle and the core liquid kettle are all connected to the air compressor, the first-level membrane liquid kettle pumps membrane liquid through a vacuum pump, and the core liquid kettle pumps core liquid through a vacuum pump; the spinning device includes a spinning head and a spinning support, the membrane liquid injection pump and the core liquid injection pump are both connected to the spinning head through a pipeline, the spinning support includes an adjustment bracket, and the adjustment bracket includes A vertically arranged bracket, a moving block located on one side of the bracket, a moving component that pushes the moving block to move up and down, and a temperature and humidity control component fixed on the moving block. The temperature and humidity control component includes a shelf block, a heating block, and a humidity control block that are arranged in sequence from top to bottom. The shelf block, the heating block, and the humidity control block are respectively provided with a No. 1 perforation, a No. 2 perforation, and a No. 3 perforation that are interconnected. The spinning head passes through the No. 1 perforation and the No. 2 perforation and is mounted on the shelf block. The shelf block and the heating block are provided with heating rod holes, and a heating rod is provided in the heating rod hole. The humidity control block is provided with an air supply channel, and a circle of annular channels is provided in the wall of the humidity control block. The annular channels are connected to the air supply channel, and the annular channels are provided with a number of downwardly inclined air outlets that are arranged at equal intervals along the circumferential direction of the No. 3 perforation. The condensation tank is located below the spinning head, and a collecting tank and a washing tank are arranged in sequence behind the condensation tank.

[0007] Furthermore, a circle of annular bosses is provided at the top of the third perforation, and the air outlet is located at the bottom of the annular bosses. After the membrane liquid and the core liquid are squeezed out from the spinning head, the nitrogen gas is filled downward around the squeezed liquid, thereby adjusting the humidity of the squeezed liquid.

[0008] Furthermore, the third perforation includes three sections from top to bottom, one end is an annular boss, the second section is a gradually expanding section from top to bottom, and the third section is a cylindrical section. The direction of nitrogen distribution is adjusted.

[0009] Furthermore, the moving assembly includes two upper and lower fixed blocks fixed on one side of the bracket and two smooth rods and a screw located between the two fixed blocks. The moving block is provided with a threaded through hole and two No. 1 through holes. The moving block is screwed to the screw through the threaded through hole. The smooth rod passes through the No. 1 through hole, and the diameter of the No. 1 through hole is larger than the diameter of the smooth rod. The two ends of the smooth rod are respectively fixed on the upper and lower fixed blocks, the bottom of the screw rod and the lower fixed block are connected through a bearing, and the upper fixed block is provided with a No. 2 through hole for passing the screw rod, and the diameter of the No. 2 through hole is larger than the diameter of the screw rod.

[0010] Furthermore, the secondary membrane liquid kettle is connected with a vacuum pump to help accelerate the process of the membrane liquid entering the secondary membrane liquid kettle.

[0011] Furthermore, the condensation pool is provided with two condensation pools, namely, the first condensation pool and the second condensation pool. The first condensation pool is located directly below the spinning head, the second condensation pool is adjacent to the first condensation pool, the bottom of the first condensation pool is provided with a first rotor, the top between the first condensation pool and the second condensation pool is provided with a second rotor, the second condensation pool is provided with two driving wheels, and the third rotor is provided between the condensation pool and the collection pool. Two types of condensation liquids can be placed in the two condensation pools, and the two condensation liquids will produce two exchange speeds. The exchange speeds will affect the size of the membrane pores. The two exchange speeds can make the pore size of the membrane pores meet the expected requirements.

[0012] Furthermore, a collecting pool driving wheel is provided in the collecting pool, and a washing pool driving wheel is provided in the washing pool. The collecting pool driving wheel is the same as the washing pool driving wheel, and the collecting pool driving wheel and the washing pool driving wheel are mounted on a detachable driving device. The collecting pool driving wheel and the washing pool driving wheel can be replaced, thereby reducing the need for manual transfer of the membrane product on the collecting pool driving wheel to the washing pool driving wheel.

[0013] Furthermore, the detachable drive device includes a drive motor and a drive shaft with a non-circular cross section connected to the drive motor, a limit plate is provided at one end of the drive shaft close to the motor, and a plurality of countersunk holes are provided at the end of the drive shaft away from the drive motor, a spring is fixed in the countersunk hole, and a clamp is fixed on the spring. The spring can be easily interchanged.

[0014] Furthermore, the washing tank is provided with a circulating water inlet and a circulating water outlet, the circulating water inlet and the circulating water outlet are provided with a circulating pipe, and the circulating pipe is provided with a circulating pump, so that the washing liquid circulates in the washing tank, thereby improving the washing effect and speed.

[0015] Furthermore, the first-level membrane liquid kettle, the second-level membrane liquid kettle and the condensation tank are provided with heating devices. When the membrane liquid is injected into the spinning head, a certain temperature can be maintained to ensure that the membrane liquid is extruded from the spinning head in an optimal fluid form.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the present invention, the residual tiny bubbles in the first-level membrane liquid kettle, the second-level membrane liquid kettle and the core liquid kettle are removed by using a vacuum pump. The spinning support includes a temperature function and a dehumidification function, so that the membrane liquid can maintain a certain temperature when injected into the spinning head to ensure that the membrane liquid is extruded from the spinning head in the optimal fluid form; by flushing nitrogen and adjusting the distance of the extruded liquid from the spinning head to the condensation tank, the distance of the "air gap" is adjusted, and the humidity of the extruded liquid is effectively controlled after extrusion, thereby ensuring the quality of the gas separation membrane.

[0018] 2. In the present invention, the driving wheel of the collecting tank and the driving wheel of the washing tank can be replaced, thereby reducing the need for manual transfer of the membrane product on the driving wheel of the collecting tank to the driving wheel of the washing tank.

[0019] 3. In the present invention, the washing liquid circulates in the washing tank through the use of a circulation pipe, thereby improving the washing effect and speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the present invention.

[0021] Figure 2 Schematic diagram of the structure of the spinning support.

[0022] Figure 3 A schematic diagram of the structure of the mobile component.

[0023] Figure 4 It is a schematic diagram of the structure of a detachable drive device. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings.

[0025] Example 1: Figure 1 , 2As shown in Figures 3 and 4, a high-precision integrated hollow fiber gas separation membrane spinning machine includes a membrane liquid feeding device, a core liquid feeding device, a spinning device, a condensation tank 1, a collecting tank 2 and a washing tank 3. A heating device is provided in the condensation tank 1. The membrane liquid feeding device includes a first-level membrane liquid kettle 4, a membrane liquid filter 5, a second-level membrane liquid kettle 6 and a membrane liquid injection pump 7 which are connected in sequence. The first-level membrane liquid kettle 4 and the second-level membrane liquid kettle 6 are provided with heating devices. The core liquid feeding device includes a core liquid kettle 8, a core liquid filter 9 and a core liquid injection pump 10 which are connected in sequence. The first-level membrane liquid kettle 4, the second-level membrane liquid kettle 6 and the core liquid kettle 8 are all connected to the air compressor 11. The first-level membrane liquid kettle 4 pumps membrane liquid through a vacuum pump 12, the core liquid kettle 8 pumps core liquid through a vacuum pump 12, and the second-level membrane liquid kettle 6 is connected to the vacuum pump 12; the spinning device includes a spinning head 13 and a spinning support 14. The membrane liquid injection pump 7 and the core liquid injection pump 10 are connected to the spinning head 13 through a pipeline. The spinning support 14 includes an adjusting bracket, and the adjusting bracket includes a vertically arranged bracket 14.1, a moving block 14.2 located on one side of the bracket 14.1, a moving component 14.3 that pushes the moving block 14.2 to move up and down, and a temperature and humidity control component fixed on the moving block 14.2. The moving component 14.3 includes a temperature and humidity control component fixed on the bracket 14.1 Two upper and lower fixed blocks 14.18 on one side and two polished rods 14.19 and a threaded rod 14.20 located between the two fixed blocks 14.18, a threaded through hole 14.21 and two No. 1 through holes 14.22 are provided on the moving block 14.2, the moving block 14.2 is screwed to the threaded through hole 14.21 and the threaded rod 14.20, the polished rod 14.19 passes through the No. 1 through hole 14.22, and the diameter of the No. 1 through hole 14.22 is larger than the diameter of the polished rod 14.19; the two ends of the polished rod 14.19 are respectively fixed on the upper and lower fixed blocks 14.18, the bottom of the threaded rod 14.20 and the lower fixed block 14.18 are connected by a bearing 14.23, and a No. 2 through hole 14.24 for passing the threaded rod 14.20 is provided on the upper fixed block 14.18, and the diameter of the No. 2 through hole 14.24 is larger than the diameter of the threaded rod 14.20.The temperature and humidity control assembly comprises a shelf block 14.4, a heating block 14.5, and a humidity control block 14.6 which are arranged in sequence from top to bottom. The shelf block 14.4, the heating block 14.5, and the humidity control block 14.6 are respectively provided with a first through hole 14.7, a second through hole 14.8, and a third through hole 14.9 which are interconnected. The spinning head 13 passes through the first through hole 14.7 and the second through hole 14.8 and is mounted on the shelf block 14.4. The shelf block 14.4 and the heating block 14.5 are provided with a heating rod hole 14.10 and a heating rod hole 14.11. 0 is provided with a heating rod 14.11, a gas supply channel 14.12 is provided on the humidity control block 14.6, a circle of annular channels 14.13 is provided in the wall of the humidity control block 14.6, the annular channels 14.13 and the gas supply channels 14.12 are connected, and the annular channels 14.13 are provided with a number of downwardly inclined air outlets 14.14 arranged at equal intervals along the circumference of the third perforation 14.9, and a circle of annular bosses 14.15 is provided on the top of the third perforation 14.9, and the air outlets 14.14 are located at the bottom of the annular bosses 14.15. The third perforation 14.9 includes three sections from top to bottom, one end is an annular boss, the second section is a gradually expanding section 14.16 from top to bottom, and the third section is a cylindrical section 14.17. The condensation pool 1 is located below the spinning head 13, and the collection pool 2 and the washing pool 3 are arranged in sequence behind the condensation pool 13. The condensation pool 1 is provided with two condensation pools, namely, No. 1 condensation pool 1.1 and No. 2 condensation pool 1.2. The No. 1 condensation pool 1.1 is located directly below the spinning head 13, and the No. 2 condensation pool 1.2 is adjacent to the No. 1 condensation pool 1.1. A No. 1 runner 1.3 is provided at the bottom of the No. 1 condensation pool 1.1, a No. 2 runner 1.4 is provided at the top between the No. 1 condensation pool 1.1 and the No. 2 condensation pool 1.2, two driving wheels 1.5 are provided in the No. 2 condensation pool 1.2, and a No. 3 runner 1.6 is provided between the condensation pool 1 and the collecting pool 2. A collecting pool driving wheel 2.1 is provided in the collecting pool 2, and a washing pool driving wheel 3.1 is provided in the washing pool 3. The collecting pool driving wheel 2.1 and the washing pool driving wheel 3.1 are the same, and the collecting pool driving wheel 2.1 and the washing pool driving wheel 3.1 are sleeved on a detachable driving device, and the detachable driving device includes a driving motor 15.1 and a driving shaft 15.2 with a non-circular cross section connected to the driving motor 15.1, and a limiting plate 15.3 is provided at one end of the driving shaft 15.2 close to the driving motor 15.1, and a plurality of countersunk holes 15.4 are provided at the end of the driving shaft 15.2 away from the driving motor 15.1, and a spring 15.5 is fixed in the countersunk hole 15.4, and a clamping block 15.6 is fixed on the spring 15.5. A circulating water inlet 3.2 and a circulating water outlet 3.3 are provided on the washing pool 3, and a circulating pipe 3.4 is provided on the circulating water inlet 3.2 and the circulating water outlet 3.3, and a circulating pump 3.5 is provided on the circulating pipe 3.4.

[0026] During operation: the operator prepares the membrane liquid according to the formula, mixes it evenly, and then automatically sucks the membrane liquid into the first-level membrane liquid kettle 4 through the vacuum pump 12. The vacuum pump 12 helps the membrane liquid to automatically remove residual tiny bubbles in the first-level membrane liquid kettle 4; then the membrane liquid is automatically pumped into the membrane liquid filter 5 from the first-level membrane liquid kettle 4 through the air compressor 11 to remove tiny impurities in the membrane liquid; after the membrane liquid is pushed by the air compressor 11 to flow through the membrane liquid filter 5, it flows into the second-level membrane liquid kettle 6 autonomously, and the process can be accelerated with the assistance of the vacuum pump connected to the rear end of the second-level membrane liquid kettle 6; then the vacuum pump 12 is used to help the membrane liquid to automatically remove residual tiny bubbles in the second-level membrane liquid kettle 6; after the bubble removal is completed in the second-level membrane liquid kettle, the membrane liquid automatically enters the membrane liquid injection pump 7, and the membrane liquid injection pump 7 can accurately control the feed flow rate of the membrane liquid, and push the membrane liquid into the rear-end spinning head 13 according to the flow rate requirements.

[0027] The operator prepares the core liquid according to the formula, mixes it evenly, and then automatically sucks the core liquid into the core liquid kettle 8 through the vacuum pump 12. The vacuum pump 12 is used to assist the core liquid in automatically removing residual tiny bubbles in the core liquid kettle 8. The air compressor 11 automatically pumps the core liquid from the core liquid kettle 8 into the core liquid filter 9. The core liquid is pretreated by the preferred core liquid filter to remove tiny impurities in the core liquid. After the core liquid flows through the core liquid filter 9 under the push of the air compressor 11, it automatically enters the core liquid injection pump 10. The liquid injection pump 10 can accurately control the feed flow rate of the core liquid and push the core liquid into the rear spinning head 13 according to the flow requirement.

[0028] The membrane liquid and the core liquid are connected to the spinning head 13 suitable for the preparation of gas separation membranes through a hose, and the spinning head 13 is placed on a special spinning support 14. The spinning support 14 can adjust the temperature and humidity of the extruded liquid extruded by the spinning head 13. The temperature is adjusted by a heating rod. When adjusting the humidity, the screw rod 14.20 can be rotated to control the distance between the spinning head 13 and the condensation tank 1. Nitrogen is filled from the gas supply channel 14.12, and the nitrogen enters the annular channel 14.13. The nitrogen rushes out from the outlet 14.14 to form an "air gap"; after the membrane liquid and the core liquid are extruded from the spinning head 13, they then enter the condensation tank 1 at the rear end. The first condensation tank 1.1 is located directly below the spinning head 13. After passing through the "air gap", the membrane liquid and the core liquid extruded from the spinning head 13 vertically enter the first condensation tank 1.1 and begin to solidify to form the final hollow fiber membrane morphology. The hollow fiber membrane passes through the No. 2 rotor 1.4 from the No. 1 rotor 1.3 in the first condensation tank 1.1 in turn, and then two driving wheels 1.5 driven by a motor are provided in the second condensation tank 1.2, one in front and one in the back. The hollow fiber membrane that has been initially condensed can be wound around the two driving wheels 1.5 for multiple times in succession, thereby achieving the goal of extending the running time of the primary membrane in the condensation tank as much as possible in a limited space, thereby ensuring that the residual organic solvent in the primary membrane is fully removed and forming a hollow fiber membrane microstructure suitable for gas separation. After leaving the second condensation tank 1.2, the formed hollow fiber membrane passes through the No. 3 rotor 1.5 and enters the collection tank 2, and is wound around the collecting tank driving wheel 2.1 for subsequent processing. The collecting tank driving wheel 2.1 can be easily disassembled and interchangeable with the rear washing tank driving wheel 3.1. The operator removes the collecting tank driving wheel 2.1 that has collected all the hollow fiber membranes from the collecting tank 2 and installs it in the washing tank 3. At the same time, the empty washing tank driving wheel 3.1 in the washing tank 3 is installed into the collecting tank 2 to facilitate the next membrane making. During washing, the circulating pump 3.5 is started to circulate the washing liquid in the washing tank 3.

[0029] The described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A high-precision integrated hollow fiber gas separation membrane spinning machine, comprising a membrane liquid feeding device, a core liquid feeding device, a spinning device, a condensation tank, a collection tank and a washing tank, characterized in that: The membrane liquid feeding device includes a first-level membrane liquid kettle, a membrane liquid filter, a second-level membrane liquid kettle, and a membrane liquid injection pump which are connected in sequence; the core liquid feeding device includes a core liquid kettle, a core liquid filter and a core liquid injection pump which are connected in sequence; the first-level membrane liquid kettle, the second-level membrane liquid kettle and the core liquid kettle are all connected to an air compressor; the first-level membrane liquid kettle pumps membrane liquid through a vacuum pump; and the core liquid kettle pumps core liquid through a vacuum pump; the spinning device includes a spinning head and a spinning support; the membrane liquid injection pump and the core liquid injection pump are both connected to the spinning head through a pipeline; the spinning support includes an adjusting bracket, and the adjusting bracket includes a vertically arranged bracket, a moving block located on one side of the bracket, a moving component for pushing the moving block to move up and down, and a moving component fixed on The temperature and humidity control component on the moving block includes a shelf block, a heating block and a humidity control block which are arranged in sequence from top to bottom. The shelf block, the heating block and the humidity control block are respectively provided with a No. 1 perforation, a No. 2 perforation and a No. 3 perforation which are interconnected. The spinning head passes through the No. 1 perforation and the No. 2 perforation and is mounted on the shelf block. The shelf block and the heating block are provided with heating rod holes. A heating rod is provided in the heating rod hole. The humidity control block is provided with an air supply channel. A circle of annular channels is provided in the wall of the humidity control block. The annular channels are connected with the air supply channel. The annular channels are provided with a number of downwardly inclined air outlets which are arranged at equal intervals along the circumferential direction of the No. 3 perforation. The condensation tank is located below the spinning head. A collecting tank and a washing tank are arranged in sequence behind the condensation tank.

2. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 1, characterized in that: A circle of annular bosses is arranged at the top of the third through hole, and the air outlet is located at the bottom of the annular bosses.

3. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 2, characterized in that: The No. 3 through hole includes three sections from top to bottom, one end is an annular boss, the second section is a gradually expanding section from top to bottom, and the third section is a cylindrical section.

4. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 1, characterized in that: The moving assembly includes two upper and lower fixed blocks fixed on one side of the bracket and two smooth rods and a screw located between the two fixed blocks. The moving block is provided with a threaded through hole and two No. 1 through holes. The moving block is screwed to the screw through the threaded through hole. The smooth rod passes through the No. 1 through hole, and the diameter of the No. 1 through hole is larger than the diameter of the smooth rod. The two ends of the smooth rod are respectively fixed on the upper and lower fixed blocks, the bottom of the screw rod and the lower fixed block are connected through a bearing, and the upper fixed block is provided with a No. 2 through hole for passing the screw rod, and the diameter of the No. 2 through hole is larger than the diameter of the screw rod.

5. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 1, characterized in that: The secondary membrane liquid kettle is connected with a vacuum pump.

6. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 1, characterized in that: The condensation pool is provided with two condensation pools, namely, No. 1 condensation pool and No. 2 condensation pool. No. 1 condensation pool is located directly below the spinning head, and No. 2 condensation pool is adjacent to No. 1 condensation pool. No. 1 rotor is provided at the bottom of No. 1 condensation pool, and No. 2 rotor is provided at the top between No. 1 condensation pool and No. 2 condensation pool. Two driving wheels are provided in No. 2 condensation pool, and No. 3 rotor is provided between the condensation pool and the collection pool.

7. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 6, characterized in that: A collecting pool driving wheel is arranged in the collecting pool, and a washing pool driving wheel is arranged in the washing pool. The collecting pool driving wheel is the same as the washing pool driving wheel, and the collecting pool driving wheel and the washing pool driving wheel are sleeved on a detachable driving device.

8. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 7, characterized in that: The detachable driving device includes a driving motor and a driving shaft with a non-circular cross-section connected to the driving motor. A limit plate is provided at one end of the driving shaft close to the motor, and a plurality of countersunk holes are provided at the end of the driving shaft away from the driving motor. A spring is fixed in the countersunk hole, and a clamping block is fixed on the spring.

9. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 1, characterized in that: The washing pool is provided with a circulating water inlet and a circulating water outlet, the circulating water inlet and the circulating water outlet are provided with a circulating pipe, and the circulating pipe is provided with a circulating pump.

10. The high-precision integrated hollow fiber gas separation membrane spinning machine according to claim 1, characterized in that: The first-level membrane liquid kettle, the second-level membrane liquid kettle and the condensation tank are provided with heating devices.

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