CN115672045A - Hollow fiber membrane yarn performance testing device and testing method thereof - Google Patents
Hollow fiber membrane yarn performance testing device and testing method thereof Download PDFInfo
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- CN115672045A CN115672045A CN202211127290.7A CN202211127290A CN115672045A CN 115672045 A CN115672045 A CN 115672045A CN 202211127290 A CN202211127290 A CN 202211127290A CN 115672045 A CN115672045 A CN 115672045A
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Abstract
The invention discloses a hollow fiber membrane silk performance testing device and a testing method thereof, wherein the device comprises a water tank, a membrane silk water producing tank and a raw water tank, a plurality of sample supports are arranged in the water tank, hollow membrane silk sockets are arranged on the sample supports, membrane silk is inserted into the membrane silk sockets, and one end of the top of the water tank is in threaded connection with an exhaust valve, and the hollow fiber membrane silk performance testing device has the beneficial effects that: the cavity is sealed fixed after inserting the socket in the membrane silk, the cavity does not contact with the adhesive in the membrane silk, the event can not take place the cavity jam problem in the membrane silk, the bayonet installation of membrane silk, the sample support can used repeatedly, every sample support has independent collecting pipe to draw forth the product water, carry out the water yield test alone, and can be to the membrane silk backwash of every sample, replace the membrane shell with the water tank, a plurality of sample supports that are equipped with different membrane silks can settle and operate in same water tank, realize multiple membrane silk and be in same quality of water simultaneously, the synchronous test under the same operating parameter condition, the water yield of each sample can independent test simultaneously and data comparison.
Description
Technical Field
The invention relates to the technical field of water treatment equipment, in particular to a hollow fiber membrane yarn performance testing device and a testing method thereof.
Background
The traditional hollow fiber membrane yarn performance testing device is used for carrying out comparison tests on the water permeability performance and the anti-attenuation performance of the same group of membrane yarns under different water qualities and different operation process conditions, and carrying out screening tests on the operation process parameters of the membrane group.
However, the traditional hollow fiber membrane yarn performance testing device cannot be used for comparison tests of the water permeability performance and the attenuation resistance performance of different membrane yarns under the same water quality and the same operation process conditions.
The traditional test device adopts a filling and sealing method to seal and fix the test membrane filaments, namely the membrane filaments are fixed inside the membrane shell to form an integral sealing structure.
It takes place the adhesive easily and permeates the membrane silk cavity hole when installing the membrane silk, and the test device is disposable, and the cost is extravagant great, just has only one to produce the mouth of a river in addition, is difficult to carry out the performance contrast test to different membrane silks under same quality of water and same process condition.
Therefore, the device and the method for testing the performance of the hollow fiber membrane yarn are designed so as to solve the problems.
Disclosure of Invention
The invention aims to provide a hollow fiber membrane yarn performance testing device and a testing method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the hollow fiber membrane silk performance testing device comprises a water tank, a membrane silk production pool and a raw water pool, wherein a plurality of sample supports (a schematic diagram shows 5 sample supports) are mounted inside the water tank, each sample support comprises a water production collecting pipe, a hollow membrane silk socket is arranged on each water production collecting pipe, membrane silk is inserted into each membrane silk socket in a splicing mode, one end of the bottom of each membrane silk is provided with a membrane silk positioning baffle, each membrane silk positioning baffle is fixedly connected with an aerator pipe, one end of each water production collecting pipe is provided with a circuit and a water production pipe quick connector, each aerator pipe and the water production collecting pipes are fixedly connected with connecting rods, one end of each aerator pipe is fixedly connected with an aerator pipe quick connector, aeration holes are uniformly formed in each aerator pipe, hollow membrane silk sockets are arranged on the sample supports, the membrane silk hollow holes are inserted into the sockets and then sealed and fixed, the membrane silk hollow holes are not contacted with an adhesive, so that the membrane silk hollow hole blocking problem cannot occur, the membrane silk can avoid a potting process, the sample production period can be shortened, and the sample supports can be repeatedly used.
One end of the water tank cover is in threaded connection with an exhaust valve, the water tank cover is close to a water inlet valve, one end of the water tank cover is in threaded connection with one end of the exhaust valve, one end of the outer wall of the water tank body is fixedly connected with a water pumping valve through a pipeline, and one end of the bottom of the water tank body is provided with a drain valve.
In a further embodiment, water tank box outer wall one end fixedly connected with washing pipe, screw fixed connection inlet tube is passed through to water intaking valve top one end, water tank bottom of the body one end threaded connection has the cross flow valve, water tank lid one end fixedly connected with water tank pressure sensor is convenient for detect the pressure (malleation) of water tank, conveniently contrasts the water yield total data under external pressure (malleation), negative pressure (interior pressure) condition, can carry out the research that the pressurization mode is to membrane silk water yield and decay performance influence.
In a further embodiment, a raw water booster pump water inlet pipe is inserted into the raw water tank, one end of the raw water booster pump water inlet pipe, which is far away from the raw water tank, is fixedly connected with a raw water booster pump, and one end of the raw water booster pump, which is far away from the raw water booster pump water inlet pipe, is fixedly connected onto the water inlet pipe, so that raw water can be conveniently input into the water tank.
In a further embodiment, a backwashing water inlet pipe is inserted into one end of the top of the membrane filament production tank, the backwashing water inlet pipe is far away from the membrane filament production water Chi Yiduan and is connected with a backwashing pump through threads, the other end of the backwashing pump is fixedly connected with a backwashing water outlet pipe, and one end of the backwashing water outlet pipe, far away from the backwashing pump, is connected with a backwashing valve through threads, so that backwashing on the membrane filament is facilitated.
In a further embodiment, the top one end of the membrane silk water production pool is inserted with a membrane silk water production pipe, the membrane silk water production pipe is far away from the membrane silk water production pool, and one end of the membrane silk water production pool is fixedly connected with a self-sucking pump which is convenient for water sucking to the membrane silk water production pool through a pipeline fixedly connected with water sucking valve.
In a further embodiment, one end of the water pumping valve, which is far away from the self-priming pump, is fixedly connected with a main pipeline, the other end of the main pipeline is fixedly connected to the backwashing valve through a branch pipeline, and one end of the main pipeline, which is far away from the water pumping valve, is fixedly connected with a plurality of water production pipes, so that a plurality of membrane wires can be conveniently cleaned respectively.
In a further embodiment, a flowmeter is installed on the water production pipe, one end of the water production pipe close to the flowmeter is fixedly connected with a pressure sensor, and one end of the water production pipe penetrating through the pressure sensor is fixedly connected to the water tank, so that the water production flow under the pressure (pumping negative pressure) condition can be conveniently detected.
Preferably, the testing method based on the hollow fiber membrane yarn performance testing device comprises the following steps:
a1, a plurality of groups of sample supports are arranged in a water tank, a group of membrane filaments of the same kind is clamped on each group of sample supports, different membrane filaments are clamped on different sample supports, all the sample supports are arranged in the same water tank, raw water in a raw water tank is pumped out and injected into the water tank, and forward pressure can be applied to all the groups of membrane filaments immersed in the water tank; the self-priming pump pumps water from the hollow hole of the membrane wire immersed in the water tank, negative pressure can be generated on the wall of the membrane wire, raw water permeates the membrane wire under the action of membrane pressure to be filtered, clear liquid in the raw water permeates the filtering hole on the membrane wall to enter the hollow hole to form low-turbidity produced water to enter a water production pool, and because a plurality of sample supports are positioned in the same water tank, the quality of the raw water is the same, the membrane pressure is the same, the produced water of different membrane wires has independent flow and membrane pressure detection systems, and the membrane pressure and water yield data of each group of membrane wires can be directly detected, so the device can be used for comparing the water production performance of different membrane wires under the same working condition;
a2, returning low-turbidity water to the water tank, and circularly operating to reach a balanced state;
a3, the device is also provided with a membrane yarn air washing function, and attachments on the outer surface of the membrane yarn can be washed by compressed air so as to recover the water production performance of the membrane yarn.
Compared with the prior art, the invention has the beneficial effects that:
1. the sample support is provided with a hollow membrane silk socket, the hollow hole of the membrane silk is sealed and fixed after being inserted into the socket, and the hollow hole of the membrane silk is not contacted with the adhesive, so that the problem of blocking of the hollow hole of the membrane silk can be avoided, and the test error caused by waste silk can be avoided;
2. the membrane wires are installed in an insertion mode, so that the filling and sealing process can be avoided, the sample manufacturing period can be shortened, and the sample bracket can be repeatedly used;
3. each sample bracket is provided with an independent collecting pipe for leading out the produced water, the water yield test is independently carried out, and the membrane yarn of each sample can be backwashed;
4. the water tank is used for replacing the membrane shell, a plurality of sample supports with different membrane filaments can be arranged in the same water tank to operate, synchronous tests of various membrane filaments under the conditions of the same water quality and the same operation parameters are realized, and the water yield of each sample can be simultaneously and independently tested and compared with data.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a view showing the structure of a sample holder according to the present invention
FIG. 4 is a schematic flow chart of the present invention.
In the figure: 1. a water tank; 1-a, a water tank body; 1-b, a water tank cover; 1-c, a sealing ring; 2. membrane silk; 3. an exhaust valve; 4. a water inlet valve; 5. a gas washing pipe; 6. a pressure sensor; 7. a flow meter; 8. a cross-flow valve; 9. a water inlet pipe; 10. a water production pipe; 11. a water pumping valve; 12. a backwash valve; 13. backwashing the water outlet pipe; 14. a backwash pump; 15. backwashing the water inlet pipe; 16. a membrane filament water producing pool; 17. a membrane filament water producing pipe; 18. a self-priming pump; 19. a raw water booster pump water inlet pipe; 20. a raw water pool; 21. a raw water booster pump; 22. a water tank pressure sensor; 23. a water production main pipeline; 24. a sample holder; 25. a membrane wire socket; 26. a blowdown valve; 27. a water production manifold; 28. an aeration pipe; 29. a connecting rod; 30. a quick connector of the water production pipe; 31. a membrane wire positioning baffle; 32. an aeration hole; 33. aeration pipe quick-operation joint.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All embodiments that can be obtained by a person skilled in the art based on the embodiments of the present invention without any inventive step are within the scope of the present invention.
Example 1
Referring to fig. 1-4, the present embodiment provides a device and a method for testing the performance of a hollow fiber membrane yarn, including a water tank 1, a membrane yarn water production tank 16 and a raw water tank 20, a water tank cover 1-b of the water tank 1 is opened, a plurality of sample holders 24 are installed inside the water tank 1-a, each sample holder 24 includes a water production manifold 27, a hollow membrane yarn socket 25 is arranged on the water production manifold 27, a membrane yarn 2 is inserted into the membrane yarn socket 25, a membrane yarn positioning baffle 31 is arranged at one end of the bottom of the membrane yarn 2, the membrane yarn positioning baffle 31 is fixedly connected with an aeration pipe 28, a circuit and a water production pipe quick connector 30 are arranged at one end of the water production manifold 27, a connecting rod 29 is fixedly connected between the aeration pipe 28 and the water production manifold 27, one end of the aeration pipe 28 is fixedly connected with an aeration pipe quick connector 33, and aeration holes 32 are uniformly formed in the aeration pipe 28.
One end of the water tank cover 1-b is in threaded connection with an exhaust valve 3, one end of the water tank cover 1-b, close to the exhaust valve 3, is in threaded connection with a water inlet valve 4, one end of the outer wall of the water tank body 1-a of the water tank 1 is fixedly connected with a water pumping valve 11 through a pipeline, and one end of the bottom of the water tank body 1-a is provided with a blow-down valve 26.
Can set up different specification membrane silk 2 of a plurality of groups in the water tank 1 and carry out the synchronization test (the attached drawing shows 5 group's samples), flourishing sea water or high salt sewage in the former water sump 20, open former water booster pump 21 back, sea water or high salt sewage get into water tank 1, water tank 1 is equivalent to the membrane shell promptly, guarantee that different membrane silk 2 moves the pressure boost under the same membrane pressure, sea water or high salt sewage are after membrane silk 2 filters, pressure sensor 6 and flowmeter 7 are installed through the upper portion product water pipe of each support to the low turbidity product water that different membrane silk 2 produced, can test the product yield of different membrane silks 2 respectively, monitor the membrane pressure of every group membrane silk 2, the product yield, this device is used for comparing the water production performance of membrane silk 2 under the same operating mode.
The membrane filament production tank is characterized in that one end of the outer wall of a water tank body 1-a is fixedly connected with a gas washing pipe 5, one end of the top of a water inlet valve 4 is fixedly connected with a water inlet pipe 9, one end of the bottom of the water tank body 1-a is in threaded connection with a cross-flow valve 8, one end of a water tank cover 1-b is fixedly connected with a water tank pressure sensor 22, one end of the inner part of a raw water tank 20 is connected with a raw water booster pump water inlet pipe 19 in an inserting mode, one end of the raw water booster pump water inlet pipe 19 is fixedly connected with a raw water booster pump 21, the other end of the raw water booster pump 21 is fixedly connected onto the water inlet pipe 9, one end of a membrane filament production tank 16 close to the raw water booster pump water inlet pipe 19 is connected with a backwashing water inlet pipe 15 in an inserting mode, one end of the backwashing water inlet pipe 15 is in threaded connection with a backwashing pump 14, the other end of the backwashing pump 14 is fixedly connected with a backwashing water outlet pipe 13, one end of the backwashing water outlet pipe 13 is in a threaded connection with a backwashing valve 12, the backwashing water outlet pipe is driven by the backwashing pump 14 to flow out of the membrane filament production tank 16, the membrane filament production tank 1 to flow, and return to the water tank to be washed.
In this embodiment, it has membrane silk to produce water pipe 17 to peg graft in 16 top one end in membrane silk product pond, membrane silk product water pipe 17 keeps away from membrane silk product pond 16 one end fixedly connected with self priming pump 18, self priming pump 18 passes through pipeline fixedly connected with water drawing valve 11, water drawing valve 11 keeps away from 18 one end fixedly connected with main pipe of self priming pump, the main pipe other end passes through tributary pipeline fixed connection on backwash valve 12, water pipe 10 is produced to 11 one end fixedly connected with of water drawing valve 10 is kept away from to the main pipe, install flowmeter 7 on the product water pipe 10, product water pipe 10 is close to 7 one end fixedly connected with pressure sensor 6 of flowmeter, product water pipe 10 passes 6 one end fixed connection of pressure sensor on water tank 1, through using self priming pump 18 to drive water tank 1 inside membrane silk 2 water after filtering and entering into membrane silk product pond 16.
Example 2
Referring to fig. 1-4, a further improvement is made on the basis of embodiment 1:
the comparison test method of the water flux and the attenuation performance of the membrane yarns with different structures comprises the following steps:
the membrane filaments 2 with different outer diameters, different wall thicknesses and different filter hole diameters are respectively arranged on different sample supports, then different supports are arranged in the same water tank 1, and all the membrane filaments 2 are guaranteed to be taken out of water and run in the same water quality.
The raw water booster pump 21 is started, the water tank 1 is equivalent to a membrane shell, and the operation of different membrane filaments 2 under the same membrane pressure is ensured.
The bottom of the bracket is provided with an exhaust pipe, and compressed air is uniformly sprayed out from the air holes of the bracket, so that the same air washing conditions of different membrane filaments 2 are ensured.
The water production pipe on the upper part of each bracket is provided with a flowmeter 7 which can respectively test the water production of different membrane filaments 2.
The water production pipe at the upper part of each bracket is connected with the same backwashing pump 14, so that the backwashing pressure of different membrane filaments 2 is ensured to be the same, and the backwashing flow of different membrane filaments 2 can be respectively tested and compared.
And (4) carrying out screening test research on different membrane yarn structures according to water yield data.
The performance comparison test method of different hydrophilization treatment membrane threads comprises the following steps:
the membrane filaments 2 with the same outer diameter, the same wall thickness and the same filtration pore diameter, but different membrane filaments 2 subjected to different hydrophilizing agents or hydrophilic treatment are respectively arranged on different sample supports, and then different supports are arranged in the same water tank 1, so that all the membrane filaments 2 are ensured to be subjected to water taking operation in the same water quality.
The water tank 1 is equivalent to a membrane shell, different membrane filaments 2 are guaranteed to run under the same membrane pressure, the flow meter 7 is installed on the water production pipe on the upper portion of each support, the water yield of the different membrane filaments 2 can be respectively tested, and screening test research of different hydrophilic treatment is carried out according to water yield data.
Example 3
Referring to fig. 1-4, a further improvement is made on the basis of embodiment 1:
the test of the influence of the outer membrane pressure (positive pressure) on the water yield and the anti-attenuation performance of the membrane yarn comprises the following steps:
the membrane silk 2 is arranged on a sample bracket and is arranged in the water tank 1, the raw water booster pump 21 is started, namely the operation of a membrane group is equivalent, the membrane pressure of the raw water booster pump 21 is adjusted, the flow meter 7 is arranged on the water production pipe on the upper part of the bracket, and the real-time water production flow under different membrane pressures and the accumulated water production total amount after the operation for a period of time are respectively tested.
The same membrane wire 2 can be arranged on three sample supports and placed in the same water tank 1, the raw water booster pump 21 is started, namely, the three membrane groups run in parallel under the same condition, and the average number of flow data is obtained, so that the data dispersibility is smaller, and the data tends to actual running data.
Setting an operation period, and comparing the total water yield data under different membrane pressures to complete the research on the selection of the membrane pressure operation parameters.
The test of the influence of the operation of 'internal membrane pressure (negative pressure') on the water yield and the anti-attenuation performance of the membrane yarn is as follows:
the membrane filaments 2 are arranged on a group of sample supports, placed in a water tank, and a water inlet pump is started to keep the water level balanced.
The water pipe is produced on support upper portion and is installed self priming pump 18 and flowmeter 7, opens self priming pump 18, can test membrane silk 2 real-time water flow and the accumulative total amount of producing water after operation a period under the negative pressure condition.
The operation period is set, and the total water yield data under the conditions of external pressure (positive pressure) and negative pressure (internal pressure) are compared, so that the influence of the pressurization mode on the water yield and the attenuation performance of the membrane filaments 2 can be researched.
The external pressure and internal pressure operation mode is used for testing the water yield and the anti-attenuation performance of the membrane filaments:
install membrane silk 2 on a sample support, arrange water tank 1 in, open raw water booster pump 21 and self priming pump 18 simultaneously, make membrane silk 2 move under "external pressure + interior pressure" mode, flowmeter 7 is installed to support upper portion product water pipe, can test the real-time water yield under this pressurization mode and the accumulative total amount of water after the operation a period.
Setting an operation period, and comparing the total water yield data of different pressurizing modes and different membrane pressures to complete the research on the selection of the membrane pressure operation parameters.
Example 4
Referring to fig. 1-4, a further improvement is made on the basis of embodiment 1:
and (3) testing the water flux and attenuation performance of the membrane filaments by different water qualities:
the same membrane thread 2 is arranged on the bracket, raw water with different components is introduced, the operation period is set, the process conditions such as the pressurization mode of the membrane thread 2, the membrane pressure parameter and the like are adjusted, and the research on the selection of the operation parameters of different water qualities can be completed by comparing the total water yield data under the conditions of different operation parameters.
Testing the influence of air washing process parameters on the attenuation performance of the membrane yarns:
the membrane filaments 2 are arranged on the support, the operation period is set, the same water quality and the same operation parameters are adopted, only the gas washing process parameters (gas washing air pressure, gas washing duration and gas washing interval time) are adjusted, and the total water yield data under the conditions of different gas washing operation parameters are compared, so that the research on the gas washing process parameters can be completed.
And (3) testing the influence of backwashing process parameters on the attenuation performance of the membrane yarns:
the membrane filaments 2 are arranged on the support, the operation period is set, the same water quality and the same operation parameters are adopted, only backwash process parameters (backwash water pressure, backwash duration and backwash interval time) are adjusted, and the total water production data under the conditions of different backwash operation parameters are compared, so that the study on backwash process parameters can be completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Hollow fiber membrane silk capability test device, including water tank (1), membrane silk product pond (16) and former pond (20), its characterized in that: the water tank (1) consists of a water tank body (1-a) and a water tank cover (1-b), a closed container water tank (1) capable of resisting 0.5MPa internal pressure is formed after being compressed through a sealing ring (1-c), a plurality of sample supports (24) are installed inside the water tank (1), each sample support (24) comprises a water production manifold (27), a hollow membrane wire socket (25) is arranged on each water production manifold (27), a membrane wire (2) is inserted into each membrane wire socket (25), a membrane wire positioning baffle (31) is arranged at one end of the bottom of each membrane wire (2), each membrane wire positioning baffle (31) is fixedly connected with an aeration pipe (28), one end of each water production manifold (27) is provided with a circuit and a water production pipe quick connector (30), a connecting rod (29) is fixedly connected between each aeration pipe (28) and each water production manifold (27), one end of each aeration pipe (28) is fixedly connected with an aeration pipe quick connector (33), and aeration holes (32) are uniformly formed in each aeration pipe (28);
one end of the water tank cover (1-b) is in threaded connection with an exhaust valve (3), the water tank cover (1-b) is close to a water inlet valve (4) in threaded connection with one end of the exhaust valve (3), one end of the outer wall of the water tank body (1-a) is fixedly connected with a water pumping valve (11) through a pipeline, and one end of the bottom of the water tank body (1-a) is provided with a drain valve (26).
2. The hollow fiber membrane yarn performance testing device of claim 1, wherein: one end of the outer wall of the water tank body (1-a) is fixedly connected with a gas washing pipe (5), one end of the top of the water inlet valve (4) is fixedly connected with a water inlet pipe (9) through a screw, one end of the bottom of the water tank body (1-a) is in threaded connection with a cross flow valve (8), and one end of the top of the water tank cover (1-b) is fixedly connected with a water tank pressure sensor (22).
3. The hollow fiber membrane yarn performance testing device of claim 1, wherein: former pond (20) inside grafting has raw water booster pump inlet tube (19), former pond (20) one end fixedly connected with raw water booster pump (21) are kept away from in raw water booster pump inlet tube (19), raw water booster pump inlet tube (19) one end fixed connection is kept away from in raw water booster pump (21) on inlet tube (9).
4. The hollow fiber membrane yarn performance testing device of claim 1, wherein: the membrane silk is produced pond (16) top one end and is pegged graft and have backwash inlet tube (15), backwash inlet tube (15) are kept away from membrane silk and are produced pond (16) one end threaded connection and have backwash pump (14), backwash pump (14) other end fixedly connected with backwash outlet pipe (13), backwash outlet pipe (13) are kept away from backwash pump (14) one end threaded connection and have backwash valve (12).
5. The hollow fiber membrane yarn performance testing device of claim 4, wherein: membrane silk is produced pond (16) top one end and is pegged graft and have membrane silk to produce water pipe (17), membrane silk is produced water pipe (17) and is kept away from membrane silk and produces pond (16) one end fixedly connected with self priming pump (18), self priming pump (18) are through pipeline fixedly connected with water pumping valve (11).
6. The hollow fiber membrane yarn performance testing device of claim 5, wherein: one end of the water suction valve (11) far away from the self-sucking pump (18) is fixedly connected with a water production main pipeline (23), the other end of the water production main pipeline (23) is fixedly connected to the backwashing valve (12) through a branch pipeline, and the water production main pipeline (23) far away from one end of the water suction valve (11) is fixedly connected with a plurality of water production pipes (10).
7. The hollow fiber membrane yarn performance testing device of claim 6, wherein: the water production pipe (10) is provided with a flowmeter (7), the water production pipe (10) is close to one end of the flowmeter (7) and is fixedly connected with a pressure sensor (6), and the water production pipe (10) penetrates through one end of the pressure sensor (6) and is fixedly connected onto the water tank body (1-a).
8. The testing method of the hollow fiber membrane silk performance testing device adopts the hollow fiber membrane silk performance testing device of claim 1, and is characterized in that: the method comprises the following steps:
a1, a plurality of sample supports (24) are installed in a water tank (1), membrane filaments (2) with different specifications or different structural properties are clamped on each sample support, raw water in a raw water pool (20) is pumped out and injected into the water tank (1), and positive pressure can be applied to each group of membrane filaments immersed in the water tank (1); water is pumped from a hollow hole of a membrane wire (2) immersed in a water tank (1), negative pressure can be generated on the wall of the membrane wire, raw water permeates the membrane wire (2) under the action of membrane pressure to be filtered, clear liquid in the raw water enters the hollow hole through a filtering hole on the membrane wall to form low-turbidity produced water and enters a water production pool, and a plurality of sample supports (24) are positioned in the same water tank (1), so that the raw water has the same quality and the same membrane pressure, the produced water of different membrane wires (2) has independent flow and membrane pressure detection systems, and the membrane pressure and water production data of each group of membrane wires (2) can be directly detected, so that the device can be used for comparing the water production performance of different membrane wires (2) under the same working condition;
a2, the low-turbidity produced water can return to the water tank (1) and circularly runs, so that the stable state of the water quality of the raw water can be maintained;
a3, the device is also provided with a membrane silk (2) air washing function, and attachments on the outer surface of the membrane silk (2) can be washed by compressed air so as to recover the water production performance of the membrane silk (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211127290.7A CN115672045A (en) | 2022-09-16 | 2022-09-16 | Hollow fiber membrane yarn performance testing device and testing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211127290.7A CN115672045A (en) | 2022-09-16 | 2022-09-16 | Hollow fiber membrane yarn performance testing device and testing method thereof |
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| CN115672045A true CN115672045A (en) | 2023-02-03 |
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| CN202211127290.7A Pending CN115672045A (en) | 2022-09-16 | 2022-09-16 | Hollow fiber membrane yarn performance testing device and testing method thereof |
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- 2022-09-16 CN CN202211127290.7A patent/CN115672045A/en active Pending
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