A repair system and method for 10 nanometer MBR membrane components

Abstract

The invention discloses a repair system and method for a 10-nanometer MBR membrane component, and relates to the field and method of maintenance and treatment of MBR membrane components. A repair system and method for a 10-nanometer MBR membrane component with compact design, low dosage of reagents and simple operation is proposed. It includes a hydrophilization circulation system, a cleaning circulation system, a pore-preserving liquid circulation system and a circulating water tank T04; the hydrophilization circulation system includes a hydrophilization solution tank T01 and a hydrophilization circulation pump P01; the cleaning circulation system includes a clean water tank T02 and a clean water circulation pump P02; the pore-preserving liquid circulation system includes a pore-preserving solution tank T03 and a pore-preserving liquid circulation pump P03. The system solves the problems of time-consuming operation, inconvenient operation, large dosage of reagents, unsatisfactory treatment effect, and large water tank footprint in the existing 10-nanometer MBR fiber membrane component flux recovery hydrophilization, cleaning, soaking and pore preservation operation tanks. It has the advantages of compact design, low dosage of reagents, and simple operation.

Description

Technical Field

[0001] The present invention relates to a MBR membrane component maintenance treatment field and method, and in particular to a 10-nanometer MBR membrane component hydrophilization device and method. Background Art

[0002] 10nmMBR membrane components are mainly used in drinking water purification, sewage treatment, industrial water treatment, beverages, biology, food, medicine, environmental protection, chemical industry, metallurgy, petroleum, thermal power and many other fields. The production process of 10nm MBR membrane components is mainly to fill thousands to tens of thousands of hollow fiber membranes in a special membrane casting box, and then pour epoxy resin or polyurethane glue into the casting box, and then form a complete 10nm MBR membrane component after cutting, bonding water collection box and other processes.

[0003] If the 10nm MBR membrane module is not stored or used improperly during use, it is easy to cause the membrane filaments to dry out, and the micropores on the membrane surface will shrink or disappear, resulting in a decrease in the flux of the membrane module or even no flux. Another situation is that the membrane filament drying process is used in the membrane filament production process to facilitate the later sealing and pouring of the membrane module. After the pouring is completed, the hydrophilization, cleaning, and pore preservation treatment process are used to restore the membrane filament flux and achieve the purpose of normal use.

[0004] At present, there are few relevant technical information and patents on the problem of flux recovery after membrane filaments are dried during the use or production of 10nm MBR membrane components. In particular, there is basically no special water tank development based on the hydrophilization, cleaning, and soaking of pores of 10nm MBR membrane components. The use of ordinary water tanks for soaking has the disadvantages of time-consuming operation, large amount of reagents used, unsatisfactory treatment effect, and large water tank space. Summary of the invention

[0005] In view of the above problems, the present invention proposes a repair system for a 10-nanometer MBR membrane module which has a compact design, uses less reagents, and is easy to operate.

[0006] The technical solution of the present invention is: comprising a hydrophilization circulation system, a cleaning circulation system, a pore-preserving liquid circulation system and a circulation water tank T04;

[0007] The middle of the circulating water tank T04 is connected to a water inlet pipe communicating therewith, and the bottom of the circulating water tank T04 is connected to a drainage pipe communicating therewith;

[0008] A pair of water collection components are also provided on both sides of the top of the circulating water tank T04, and the water collection components include a water collection frame and a plurality of membrane assembly connecting pipes. The water collection frame is fixedly connected to the edge of the top of the circulating water tank T04, and the plurality of membrane assembly connecting pipes are all fixedly connected to the water collection frame and are all connected to the water collection frame. A water collection frame water outlet is provided at the bottom of the water collection frame;

[0009] The end of the membrane assembly connecting pipe away from the water collecting frame is used to connect the water outlet of the MBR membrane assembly, and the membrane assembly connecting pipe is provided with a membrane assembly ball valve for controlling the on-off of the membrane assembly connecting pipe;

[0010] The hydrophilization circulation system includes a hydrophilization solution tank T01 and a hydrophilization circulation pump P01. The hydrophilization solution tank T01 is connected to the water inlet pipe of the circulation water tank T04 through the hydrophilization circulation pump P01. At the same time, the drainage pipe of the circulation water tank T04 and the water outlet of the water collecting frame are also connected to the water inlet of the hydrophilization circulation pump P01.

[0011] The cleaning circulation system includes a clean water tank T02 and a clean water circulation pump P02. The clean water tank T02 is connected to the water inlet pipe of the circulating water tank T04 through the clean water circulation pump P02. At the same time, the drainage pipe of the circulating water tank T04 and the water outlet of the water collecting frame are also connected to the water inlet of the clean water circulation pump P02.

[0012] The pore-preserving liquid circulation system includes a pore-preserving solution tank T03 and a pore-preserving liquid circulation pump P03. The pore-preserving solution tank T03 is connected to the water inlet pipe of the circulating water tank T04 through the pore-preserving liquid circulation pump P03. At the same time, the drainage pipe of the circulating water tank T04 and the water outlet of the water collecting frame are also connected to the water inlet of the pore-preserving liquid circulation pump P03.

[0013] The hydrophilization solution tank T01 has a water outlet and a water return port;

[0014] An eleventh ball valve V11 is provided in the pipeline between the water outlet of the hydrophilic solution tank T01 and the water inlet of the hydrophilic circulation pump P01, and a first check valve CV1, a thirteenth ball valve V13, a first electromagnetic flowmeter F01 and a second ball valve V02 are provided in sequence in the pipeline between the water outlet of the hydrophilic circulation pump P01 and the water inlet of the circulating water tank T04;

[0015] The water return port of the hydrophilization solution tank T01 is connected between the first check valve CV1 and the thirteenth ball valve V13 through a pipeline, and a fourteenth ball valve V14 is provided in the pipeline;

[0016] A third ball valve V03 and a twelfth ball valve V12 are provided in sequence in the pipeline between the drainage pipe of the circulating water tank T04 and the water inlet of the hydrophilic circulating pump P01;

[0017] The water outlet of the water collecting frame of the circulating water tank T04 is connected between the third ball valve V03 and the twelfth ball valve V12 through a pipeline, and the first ball valve V01 is provided in the pipeline.

[0018] The clean water tank T02 has a water outlet and a water return port;

[0019] A twenty-first ball valve V21 is provided in the pipeline between the water outlet of the clean water tank T02 and the water inlet of the clean water circulation pump P02, and a second check valve CV2, a twenty-third ball valve V23, a second electromagnetic flowmeter F02, a twenty-fourth ball valve V24 and a sixth ball valve V06 are provided in sequence in the pipeline between the water outlet of the clean water circulation pump P02 and the water inlet of the circulating water tank T04;

[0020] The water return port of the clean water tank T02 is connected between the second check valve CV2 and the twenty-third ball valve V23 through a pipeline, and a twenty-fifth ball valve V25 is provided in the pipeline;

[0021] A seventh ball valve V07 and a twenty-second ball valve V22 are provided in sequence in the pipeline between the drainage pipe of the circulating water tank T04 and the water inlet of the clean water circulating pump P02;

[0022] The water outlet of the water collecting frame of the circulating water tank T04 is connected between the seventh ball valve V07 and the twenty-second ball valve V22 through a pipeline, and a fifth ball valve V05 is provided in the pipeline.

[0023] The pore-maintaining solution tank T03 has a water outlet and a water return port;

[0024] A thirty-first ball valve V31 is provided in the pipeline between the water outlet of the pore-preserving solution tank T03 and the water inlet of the pore-preserving solution circulation pump P03;

[0025] The outlet of the pore-maintaining liquid circulation pump P03 is connected between the twenty-fourth ball valve V24 and the sixth ball valve V06 through a pipeline, and the third check valve CV3, the thirty-third ball valve V33, the third electromagnetic flowmeter F03 and the thirty-fourth ball valve V34 are sequentially arranged in the pipeline;

[0026] The water return port of the hole-preserving solution tank T03 is connected between the third check valve CV3 and the thirty-third ball valve V33 through a pipeline, and a thirty-fifth ball valve V35 is provided in the pipeline;

[0027] The water inlet of the pore-maintaining liquid circulation pump P03 is also connected between the fifth ball valve V05 and the twenty-second ball valve V22 through a pipeline, and a thirty-second ball valve V32 is provided in the pipeline.

[0028] The drain pipe of the circulating water tank T04 is also connected to an emptying pipe, in which a fourth ball valve V04 is provided.

[0029] The water outlet of the water collecting frame of the circulating water tank T04 is also connected to an exhaust pipe, and an exhaust ball valve V00 is provided in the exhaust pipe.

[0030] Follow these steps:

[0031] S1. Place the MBR membrane assembly: place the MBR membrane assembly into the circulating water tank T04, and connect the water outlet of the MBR membrane assembly to the membrane assembly connecting pipe;

[0032] S2, hydrophilization cycle: repairing the MBR membrane components through the hydrophilization solution in the hydrophilization solution tank T01;

[0033] S2.1, adding hydrophilic solution: add the hydrophilic solution in the hydrophilic solution tank T01 into the circulating water tank T04 through the hydrophilic circulation pump P01;

[0034] S2.2, hydrophilization external circulation: control the drainage pipe of the circulating water tank T04 to be connected with the water inlet of the hydrophilization circulating pump P01, and the water outlet of the hydrophilization circulating pump P01 to be connected with the water inlet pipe of the circulating water tank T04, so that the hydrophilization liquid circulates outside the MBR membrane module under the action of the hydrophilization circulating pump P01 for 1-3 minutes;

[0035] S2.3, hydrophilic internal circulation: control the water outlet of the water collecting frame of the circulating water tank T04 to be connected with the water inlet of the hydrophilic circulating pump P01, and the water outlet of the hydrophilic circulating pump P01 is connected with the water inlet pipe of the circulating water tank T04, so that the hydrophilic liquid continuously enters the inside of the MBR membrane module from the outside under the action of the hydrophilic circulating pump P01, and lasts for 3-5 minutes;

[0036] S3, emptying: drain the liquid in the circulating water tank T04 to the sewer through the drain pipe, or turn on the hydrophilization circulation pump P01 to make it flow back to the hydrophilization solution tank T01;

[0037] S4, cleaning cycle: repair the MBR membrane assembly with clean water in the clean water tank T02;

[0038] S4.1, water injection: add the clean water in the clean water tank T02 into the circulating water tank T04 through the clean water circulation pump P02;

[0039] S4.2, clean water external circulation: control the drainage pipe of the circulating water tank T04 to be connected with the water inlet of the clean water circulating pump P02, and the water outlet of the clean water circulating pump P02 to be connected with the water inlet pipe of the circulating water tank T04, so that the clean water circulates outside the MBR membrane module under the action of the clean water circulating pump P02 for 1-3 minutes;

[0040] S4.3, clean water internal circulation: control the water outlet of the water collecting frame of the circulating water tank T04 to be connected with the water inlet of the clean water circulating pump P02, and the water outlet of the clean water circulating pump P02 to be connected with the water inlet pipe of the circulating water tank T04, so that the clean water continuously enters the inside of the MBR membrane module from the outside under the action of the clean water circulating pump P02, and lasts for 3-5 minutes;

[0041] S5, emptying: drain the liquid in the circulating water tank T04 to the sewer through the drain pipe, or turn on the clean water circulation pump P02 to make it flow back to the clean water tank T02;

[0042] S6, pore-maintaining solution circulation: repairing the MBR membrane assembly through the pore-maintaining solution in the pore-maintaining solution tank T03;

[0043] S6.1. Adding pore-preserving solution: Add the clean water in the pore-preserving solution tank T03 into the circulating water tank T04 through the pore-preserving solution circulating pump P03;

[0044] S6.2, external circulation of pore-preserving solution: control the drainage pipe of the circulating water tank T04 to be connected with the water inlet of the pore-preserving solution circulating pump P03, and the water outlet of the pore-preserving solution circulating pump P03 to the water inlet pipe of the circulating water tank T04, so that the pore-preserving solution circulates outside the MBR membrane module under the action of the pore-preserving solution circulating pump P03 for 1-3 minutes;

[0045] S6.3, internal circulation of pore-preserving solution: control the water outlet of the water collecting frame of the circulating water tank T04 to be connected with the water inlet of the pore-preserving solution circulating pump P03, and the water outlet of the pore-preserving solution circulating pump P03 is connected with the water inlet pipe of the circulating water tank T04, so that the pore-preserving solution continuously enters the inside of the MBR membrane module from the outside under the action of the pore-preserving solution circulating pump P03, and lasts for 3-5 minutes;

[0046] S7, emptying: drain the liquid in the circulating water tank T04 to the sewer through the drain pipe, or open the pore-keeping liquid circulation pump P03 to make it flow back to the pore-keeping solution tank T03;

[0047] S8. Drain and pack: Take out the MBR membrane components after the final pore preservation treatment, drain and pack.

[0048] The hydrophilic solution used in step S2 is one of ethanol, acetone, isopropanol, DMAC, and DMF, or a mixture of several of them.

[0049] The pore retaining agent used in step S6 is one or a mixture aqueous solution of glycerol, NaClO, CaCl2, PVA, and PEG400.

[0050] The present invention uses suitable membrane fiber flux recovery hydrophilization agents and membrane fiber pore-preserving agents in a targeted manner through optimized design and overall integration, and completes the flux recovery hydrophilization, cleaning, soaking and pore-preserving operations of 10 nanometer MBR membrane components in the same water tank by controlling the required valves and water pumps. The existing 10 nanometer MBR fiber membrane component flux recovery hydrophilization, cleaning, soaking and pore-preserving water tanks solve the problems of time-consuming operation, inconvenient operation, large amount of reagent usage, unsatisfactory treatment effect, and large water tank area, and improves the hydrophilization, cleaning, and soaking pore-preserving efficiency of MBR membrane components, saves reagent costs, and saves labor. At the same time, the present invention can also be used as an MBR membrane component flux test water tank, and single or multiple MBR membrane component flux tests can be performed. It has the advantages of compact design, small amount of reagent usage, and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 This is the structural diagram of this case.

[0052] Figure 2 This is the structural diagram of the circulating water tank in this case.

[0053] Figure 3 yes Figure 2 The left view of

[0054] Figure 4 yes Figure 2 It is a top view.

[0055] Figure 5 yes Figure 4 AA section view;

[0056] Figure 6 This is the working status of the hydrophilic circulation system Figure 1 ,

[0057] Figure 7 This is the working status of the hydrophilic circulation system Figure 2 ,

[0058] Figure 8 This is the working status of the hydrophilic circulation system Figure 3 ;

[0059] Fig. 9 This is the working status of the cleaning circulation system. Figure 1 ,

[0060] Fig.10 This is the working status of the cleaning circulation system. Figure 2 ,

[0061] Fig.11 This is the working status of the cleaning circulation system. Figure 3 ;

[0062] Fig.12 This is the working status of the pore-preserving liquid circulation system. Figure 1 ,

[0063] Fig.13 This is the working status of the pore-preserving liquid circulation system. Figure 2 ,

[0064] Fig.14 This is the working status of the pore-preserving liquid circulation system. Figure 3 ;

[0065] In the figure, 11 is the water inlet pipe, 12 is the drain pipe, 13 is the water collecting frame, 130 is the water outlet of the water collecting frame, 14 is the membrane assembly connecting pipe, 15 is the membrane assembly ball valve, 16 is the membrane assembly partition fixing rod; 2 is the MBR assembly, and 21 is the water collecting box. DETAILED DESCRIPTION

[0066] In order to clearly illustrate the technical features of this patent, this patent is elaborated in detail below through a specific implementation method and in combination with its accompanying drawings.

[0067] The present invention Figure 1-14 As shown, it includes a hydrophilization circulation system, a cleaning circulation system, a pore-preserving liquid circulation system and a circulation water tank T04;

[0068] The middle of the circulating water tank T04 is connected to a water inlet pipe 11 in communication with it, and the bottom of the circulating water tank T04 is connected to a drainage pipe 12 in communication with it; in specific arrangement, the water inlet pipe and the drainage pipe can be respectively arranged on both sides of the circulating water tank, so as to facilitate connection and structural layout;

[0069] A pair of water collection components are also provided on both sides of the top of the circulating water tank T04, and the water collection components include a water collection frame 13 and a plurality of membrane assembly connecting pipes 14. The water collection frame 13 is fixedly connected to the edge of the top of the circulating water tank T04, and the plurality of membrane assembly connecting pipes 14 are all fixedly connected to the water collection frame 13 and are all connected to the water collection frame 13. The bottom of the water collection frame 13 is provided with a water collection frame water outlet 130;

[0070] The end of the membrane assembly connecting pipe 14 away from the water collecting frame 13 is used to connect the water outlet of the MBR membrane assembly 2, and the membrane assembly connecting pipe 14 is provided with a membrane assembly ball valve 15 for controlling the on and off of the membrane assembly connecting pipe 14;

[0071] The hydrophilization circulation system includes a hydrophilization solution tank T01 and a hydrophilization circulation pump P01. The hydrophilization solution tank T01 is connected to the water inlet pipe of the circulation water tank T04 through the hydrophilization circulation pump P01. At the same time, the drainage pipe of the circulation water tank T04 and the water outlet of the water collecting frame are also connected to the water inlet of the hydrophilization circulation pump P01.

[0072] The cleaning circulation system includes a clean water tank T02 and a clean water circulation pump P02. The clean water tank T02 is connected to the water inlet pipe of the circulating water tank T04 through the clean water circulation pump P02. At the same time, the drainage pipe of the circulating water tank T04 and the water outlet of the water collecting frame are also connected to the water inlet of the clean water circulation pump P02.

[0073] The pore-preserving liquid circulation system includes a pore-preserving solution tank T03 and a pore-preserving liquid circulation pump P03. The pore-preserving solution tank T03 is connected to the water inlet pipe of the circulating water tank T04 through the pore-preserving liquid circulation pump P03. At the same time, the drainage pipe of the circulating water tank T04 and the water outlet of the water collecting frame are also connected to the water inlet of the pore-preserving liquid circulation pump P03.

[0074] In this way, through optimized design, overall integration, targeted use of appropriate membrane fiber flux recovery hydrophilization agents and membrane fiber pore preservation agents, and by controlling the required valves and water pumps, the flux recovery hydrophilization, cleaning, soaking and pore preservation operations of the 10-nanometer MBR membrane module can be completed in the same water tank. The existing 10-nanometer MBR fiber membrane module flux recovery hydrophilization, cleaning, soaking and pore preservation water tanks are solved, such as time-consuming operation, inconvenient operation, large amount of reagents used, unsatisfactory treatment effect, and large water tank area. The hydrophilization, cleaning, soaking and pore preservation efficiency of the MBR membrane module is improved, and the cost of reagents and labor are saved.

[0075] A plurality of membrane assembly separation and fixing rods 16 are also provided on one side of the water collection assembly, and the membrane assembly separation and fixing rods 16 are fixedly connected in the water tank 1, and the spacing between two adjacent membrane assembly separation and fixing rods 16 is adapted to the thickness of the water collection box 21 of the MBR membrane assembly 2. Thus, the water collection boxes at both ends of the MBR membrane assembly can be conveniently inserted between the adjacent membrane assembly separation and fixing rods, which has the advantages of convenient use and stable structure.

[0076] The inner wall of the water tank is also provided with a plurality of vertical slide grooves, which are adapted to the water collecting boxes at both ends of the MBR membrane assembly. Thus, through the guidance of the vertical slide grooves, the water collecting box of the MBR membrane assembly can be better and more smoothly inserted between a pair of membrane assembly partition fixing rods, and the MBR membrane assembly can maintain better connection stability after being placed in the water tank.

[0077] The water tank is welded inside the outer frame, the water collecting frame is welded at the top edge of the water tank, and the water collecting frame is also welded to the outer frame, and the outer frame is made of stainless steel pipe material. Thus, the overall structure of the equipment is better maintained, and it can be better connected with other equipment, or placed more stably on other equipment platforms.

[0078] The installation method of the MBR membrane assembly is as follows: firstly place the MBR membrane assembly 2 into the water tank, so that the two ends of the MBR membrane assembly 2 are fixed between the two pairs of membrane assembly separation fixing rods 16, and the water outlet of the MBR membrane assembly 2 faces upward; then put the membrane assembly connecting pipe 14 onto the water outlet of the MBR membrane assembly, and tighten the membrane assembly ball valve 15.

[0079] The hydrophilization solution tank T01 has a water outlet and a water return port;

[0080] An eleventh ball valve V11 is provided in the pipeline between the water outlet of the hydrophilic solution tank T01 and the water inlet of the hydrophilic circulation pump P01, and a first check valve CV1, a thirteenth ball valve V13, a first electromagnetic flowmeter F01 and a second ball valve V02 are provided in sequence in the pipeline between the water outlet of the hydrophilic circulation pump P01 and the water inlet of the circulating water tank T04;

[0081] The water return port of the hydrophilization solution tank T01 is connected between the first check valve CV1 and the thirteenth ball valve V13 through a pipeline, and a fourteenth ball valve V14 is provided in the pipeline;

[0082] A third ball valve V03 and a twelfth ball valve V12 are provided in sequence in the pipeline between the drainage pipe of the circulating water tank T04 and the water inlet of the hydrophilic circulating pump P01;

[0083] The water outlet of the water collecting frame of the circulating water tank T04 is connected between the third ball valve V03 and the twelfth ball valve V12 through a pipeline, and the first ball valve V01 is provided in the pipeline.

[0084] The clean water tank T02 has a water outlet and a water return port;

[0085] A twenty-first ball valve V21 is provided in the pipeline between the water outlet of the clean water tank T02 and the water inlet of the clean water circulation pump P02, and a second check valve CV2, a twenty-third ball valve V23, a second electromagnetic flowmeter F02, a twenty-fourth ball valve V24 and a sixth ball valve V06 are provided in sequence in the pipeline between the water outlet of the clean water circulation pump P02 and the water inlet of the circulating water tank T04;

[0086] The water return port of the clean water tank T02 is connected between the second check valve CV2 and the twenty-third ball valve V23 through a pipeline, and a twenty-fifth ball valve V25 is provided in the pipeline;

[0087] A seventh ball valve V07 and a twenty-second ball valve V22 are provided in sequence in the pipeline between the drainage pipe of the circulating water tank T04 and the water inlet of the clean water circulating pump P02;

[0088] The water outlet of the water collecting frame of the circulating water tank T04 is connected between the seventh ball valve V07 and the twenty-second ball valve V22 through a pipeline, and a fifth ball valve V05 is provided in the pipeline.

[0089] The pore-maintaining solution tank T03 has a water outlet and a water return port;

[0090] A thirty-first ball valve V31 is provided in the pipeline between the water outlet of the pore-preserving solution tank T03 and the water inlet of the pore-preserving solution circulation pump P03;

[0091] The outlet of the pore-maintaining liquid circulation pump P03 is connected between the twenty-fourth ball valve V24 and the sixth ball valve V06 through a pipeline, and the third check valve CV3, the thirty-third ball valve V33, the third electromagnetic flowmeter F03 and the thirty-fourth ball valve V34 are sequentially arranged in the pipeline;

[0092] The water return port of the hole-preserving solution tank T03 is connected between the third check valve CV3 and the thirty-third ball valve V33 through a pipeline, and a thirty-fifth ball valve V35 is provided in the pipeline;

[0093] The water inlet of the pore-maintaining liquid circulation pump P03 is also connected between the fifth ball valve V05 and the twenty-second ball valve V22 through a pipeline, and a thirty-second ball valve V32 is provided in the pipeline.

[0094] The drain pipe of the circulating water tank T04 is also connected to an emptying pipe, in which a fourth ball valve V04 is provided.

[0095] The water outlet of the water collecting frame of the circulating water tank T04 is also connected to an exhaust pipe, and an exhaust ball valve V00 is provided in the exhaust pipe.

[0096] Follow these steps:

[0097] S1. Place the MBR membrane assembly: Place the MBR membrane assembly in the circulating water tank T04, and connect the water outlet of the MBR membrane assembly to the membrane assembly connecting pipe; that is, place the MBR membrane assembly in the circulating water tank, and fix both ends of the MBR membrane assembly between the fixing rods of the circulating water tank, with the water outlet of the MBR membrane assembly facing upward, put the membrane assembly connecting pipe on the water outlet of the MBR membrane assembly, tighten the membrane assembly ball valve 15 and keep it open;

[0098] S2, hydrophilization cycle: repairing the MBR membrane components through the hydrophilization solution in the hydrophilization solution tank T01;

[0099] S2.1, adding hydrophilic solution: add the hydrophilic solution in the hydrophilic solution tank T01 into the circulating water tank T04 through the hydrophilic circulation pump P01; Figure 6 As shown, open the eleventh ball valve V11, the thirteenth ball valve V13, and the second ball valve V02, start the hydrophilic circulation pump P01, and inject the hydrophilic solution in the hydrophilic solution tank into the circulating water tank T04. After observing that the liquid level of the circulating water tank reaches the required level, stop the pump and close the eleventh ball valve V11;

[0100] S2.2, hydrophilization external circulation: control the drainage pipe of the circulating water tank T04 to be connected with the water inlet of the hydrophilization circulating pump P01, and the water outlet of the hydrophilization circulating pump P01 to the water inlet pipe of the circulating water tank T04, so that the hydrophilization liquid circulates outside the MBR membrane module under the action of the hydrophilization circulating pump P01 for 1-3 minutes; Figure 7 As shown, open the third ball valve V03, the twelfth ball valve V12, the thirteenth ball valve V13, and the second ball valve V02, close the first ball valve V01, the eleventh ball valve V11, and the fourteenth ball valve V14, start the hydrophilization circulation pump P01 to allow the hydrophilization solution in the circulating water tank T04 to circulate back and forth for 1-3 minutes, then stop the pump and close the third ball valve V03;

[0101] S2.3, hydrophilic internal circulation: control the water outlet of the water collecting frame of the circulating water tank T04 to be connected with the water inlet of the hydrophilic circulating pump P01, and the water outlet of the hydrophilic circulating pump P01 is connected with the water inlet pipe of the circulating water tank T04, so that the hydrophilic liquid continuously enters the inside of the MBR membrane module from the outside under the action of the hydrophilic circulating pump P01, and lasts for 3-5 minutes; Figure 7 As shown, the first ball valve V01, the twelfth ball valve V12, the thirteenth ball valve V13, and the second ball valve V02 are opened, and the third ball valve V03, the eleventh ball valve V11, and the fourteenth ball valve V14 are closed. After the hydrophilization circulation pump P01 filters the hydrophilization solution in the circulating water tank T04 back and forth for 3-5 minutes, the pump is stopped and the first ball valve V01 is closed;

[0102] S3, emptying: drain the liquid in the circulating water tank T04 to the sewer through the drain pipe, or turn on the hydrophilization circulation pump P01 to make it flow back to the hydrophilization solution tank T01; Figure 8 As shown, open the third ball valve V03, the twelfth ball valve V12, and the fourteenth ball valve V14, close the first ball valve V01, the eleventh ball valve V11, and the thirteenth ball valve V13, start the hydrophilic circulation pump P01 to empty the hydrophilic solution in the circulating water tank T04 into the hydrophilic solution tank T01, stop the pump and close the third ball valve V03; and for the liquid medicine that has been used many times, open the fourth ball valve V04 and discharge it directly into the sewer;

[0103] S4, cleaning cycle: repair the MBR membrane assembly with clean water in the clean water tank T02;

[0104] S4.1, water injection: add the clean water in the clean water tank T02 into the circulating water tank T04 through the clean water circulation pump P02; Fig. 9As shown, open the twenty-first ball valve V21, the twenty-third ball valve V23, the twenty-fourth ball valve V24, and the sixth ball valve V06, start the clean water circulation pump P02, and pour the clean water in the clean water tank T02 into the circulating water tank T04. After observing that the liquid level in the circulating water tank reaches the required level, stop the pump and close the twenty-first ball valve V21;

[0105] S4.2, clean water external circulation: control the drainage pipe of the circulating water tank T04 to be connected with the water inlet of the clean water circulating pump P02, and the water outlet of the clean water circulating pump P02 to the water inlet pipe of the circulating water tank T04, so that the clean water circulates outside the MBR membrane module under the action of the clean water circulating pump P02 for 1-3 minutes; Fig.10 As shown, open the seventh ball valve V07, the twenty-second ball valve V22, the twenty-third ball valve V23, the twenty-fourth ball valve V24, and the sixth ball valve V06, close the fifth ball valve V05, the twenty-first ball valve V21, and the twenty-fifth ball valve V25, start the clean water circulation pump P02 to circulate the clean water in the circulating water tank T04 back and forth for 1-3 minutes, then stop the pump and close the seventh ball valve V07;

[0106] S4.3, clean water internal circulation: control the water outlet of the water collecting frame of the circulating water tank T04 to be connected with the water inlet of the clean water circulating pump P02, and the water outlet of the clean water circulating pump P02 is connected with the water inlet pipe of the circulating water tank T04, so that the clean water continuously enters the inside of the MBR membrane module from the outside under the action of the clean water circulating pump P02, and lasts for 3-5 minutes; Fig.10 As shown, open the fifth ball valve V05, the twenty-second ball valve V22, the twenty-third ball valve V23, the twenty-fourth ball valve V24, and the sixth ball valve V06, close the seventh ball valve V07, the twenty-first ball valve V21, and the twenty-fifth ball valve V25, and after the clean water circulation pump P02 filters and circulates the clean water in the circulating water tank T04 back and forth for 3-5 minutes, stop the pump and close the fifth ball valve V05;

[0107] S5, emptying: drain the liquid in the circulating water tank T04 to the sewer through the drain pipe, or turn on the clean water circulation pump P02 to make it flow back to the clean water tank T02; Fig.11 As shown, open the seventh ball valve V07, the twenty-second ball valve V22, and the twenty-fifth ball valve V25, close the fifth ball valve V05, the twenty-first ball valve V21, and the twenty-third ball valve V23, start the clean water circulation pump P02 to empty the clean water in the circulating water tank T04 into the clean water tank T02, stop the pump and close the seventh ball valve V07; and for the clean water that has been used many times, open the fourth ball valve V04 and discharge it directly into the sewer;

[0108] S6, pore-maintaining solution circulation: repairing the MBR membrane assembly through the pore-maintaining solution in the pore-maintaining solution tank T03;

[0109] S6.1, add pore-preserving solution: add the clean water in the pore-preserving solution tank T03 into the circulating water tank T04 through the pore-preserving solution circulating pump P03; Fig.12 As shown, open the thirty-first ball valve V31, the thirty-third ball valve V33, the thirty-fourth ball valve V34, and the sixth ball valve V06, start the pore-keeping solution circulation pump P03, and inject the pore-keeping solution in the pore-keeping solution tank T03 into the circulating water tank T04. After observing that the liquid level in the circulating water tank reaches the required level, stop the pump and close the thirty-first ball valve V31;

[0110] S6.2, external circulation of pore-preserving solution: control the drainage pipe of the circulating water tank T04 to be connected with the water inlet of the pore-preserving solution circulating pump P03, and the water outlet of the pore-preserving solution circulating pump P03 to the water inlet pipe of the circulating water tank T04, so that the pore-preserving solution circulates outside the MBR membrane module under the action of the pore-preserving solution circulating pump P03 for 1-3 minutes; Fig.13 As shown, open the seventh ball valve V07, the thirty-second ball valve V32, the thirty-third ball valve V33, the thirty-fourth ball valve V34, and the sixth ball valve V06, close the fifth ball valve V05, the thirty-first ball valve V31, and the thirty-fifth ball valve V35, start the pore-preserving liquid circulation pump P03 to allow the pore-preserving solution in the circulating water tank T04 to circulate back and forth for 1-3 minutes, then stop the pump and close the seventh ball valve V07;

[0111] S6.3, internal circulation of pore-preserving solution: control the water outlet of the water collecting frame of the circulating water tank T04 to be connected with the water inlet of the pore-preserving solution circulating pump P03, and the water outlet of the pore-preserving solution circulating pump P03 is connected with the water inlet pipe of the circulating water tank T04, so that the pore-preserving solution continuously enters the inside of the MBR membrane module from the outside under the action of the pore-preserving solution circulating pump P03, and lasts for 3-5 minutes; Fig.13 As shown, the fifth ball valve V05, the thirty-second ball valve V32, the thirty-third ball valve V33, the thirty-fourth ball valve V34, and the sixth ball valve V06 are opened, and the seventh ball valve V07, the thirty-first ball valve V31, and the thirty-fifth ball valve V35 are closed. After the pore-preserving liquid circulation pump P03 filters the pore-preserving solution in the circulating water tank T04 back and forth for 3-5 minutes, the pump is stopped and the fifth ball valve V05 is closed;

[0112] S7, emptying: drain the liquid in the circulating water tank T04 to the sewer through the drain pipe, or open the pore-keeping liquid circulation pump P03 to make it flow back to the pore-keeping solution tank T03; Fig.14 As shown, open the seventh ball valve V07, the thirty-second ball valve V32, and the thirty-fifth ball valve V35, close the fifth ball valve V05, the thirty-first ball valve V31, and the thirty-third ball valve V33, start the pore-keeping solution circulation pump P03 to empty the pore-keeping solution in the circulating water tank T04 into the solution tank T03, stop the pump and close the seventh ball valve V07; and for the pore-keeping solution that has been used many times, open the fourth ball valve V04 and discharge it directly into the sewer;

[0113] S8. Drain and pack: Take out the MBR membrane components after the final pore preservation treatment, drain and pack.

[0114] The hydrophilic solution used in step S2 is one of ethanol, acetone, isopropanol, DMAC, and DMF, or a mixture of several of them.

[0115] The pore retaining agent used in step S6 is one or a mixture aqueous solution of glycerol, NaClO, CaCl2, PVA, and PEG400.

[0116] There are many specific implementation ways of the present invention. The above is only the preferred implementation mode of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principle of the present invention. These improvements should also be regarded as the protection scope of the present invention.

Claims

1. A repair system for a 10 nanometer MBR membrane module, characterized in that: Including hydrophilization circulation system, cleaning circulation system, pore preservation liquid circulation system and circulation water tank (T04); The middle of the circulating water tank (T04) is connected to a water inlet pipe in communication therewith, and the bottom of the circulating water tank (T04) is connected to a drainage pipe in communication therewith; A pair of water collection components are also provided on both sides of the top of the circulating water tank (T04), and the water collection components include a water collection frame and a plurality of membrane component connecting pipes. The water collection frame is fixedly connected to the edge of the top of the circulating water tank (T04), and the plurality of membrane component connecting pipes are all fixedly connected to the water collection frame and are in communication with the water collection frame. A water collection frame water outlet is provided at the bottom of the water collection frame; The end of the membrane assembly connecting pipe away from the water collecting frame is used to connect the water outlet of the MBR membrane assembly, and the membrane assembly connecting pipe is provided with a membrane assembly ball valve for controlling the on-off of the membrane assembly connecting pipe; The hydrophilization circulation system comprises a hydrophilization solution tank (T01) and a hydrophilization circulation pump (P01), wherein the hydrophilization solution tank (T01) is connected to a water inlet pipe of a circulation water tank (T04) via the hydrophilization circulation pump (P01), and at the same time, a drainage pipe of the circulation water tank (T04) and a water outlet of a water collecting frame are also connected to a water inlet of the hydrophilization circulation pump (P01); The cleaning circulation system comprises a clean water tank (T02) and a clean water circulation pump (P02), wherein the clean water tank (T02) is connected to a water inlet pipe of a circulating water tank (T04) via the clean water circulation pump (P02), and at the same time, a drainage pipe of the circulating water tank (T04) and a water outlet of a water collecting frame are also connected to a water inlet of the clean water circulation pump (P02); The pore-preserving liquid circulation system comprises a pore-preserving solution tank (T03) and a pore-preserving liquid circulation pump (P03), wherein the pore-preserving solution tank (T03) is connected to a water inlet pipe of a circulating water tank (T04) via the pore-preserving liquid circulation pump (P03), and at the same time, a drainage pipe of the circulating water tank (T04) and a water outlet of a water collecting frame are also connected to a water inlet of the pore-preserving liquid circulation pump (P03); The hydrophilization solution tank (T01) has a water outlet and a water return port; An eleventh ball valve (V11) is provided in the pipeline between the water outlet of the hydrophilic solution tank (T01) and the water inlet of the hydrophilic circulation pump (P01), and a first check valve (CV1), a thirteenth ball valve (V13), a first electromagnetic flowmeter (F01) and a second ball valve (V02) are provided in sequence in the pipeline between the water outlet of the hydrophilic circulation pump (P01) and the water inlet pipe of the circulating water tank (T04); The water return port of the hydrophilization solution tank (T01) is connected between the first check valve (CV1) and the thirteenth ball valve (V13) through a pipeline, and a fourteenth ball valve (V14) is provided in the pipeline; A third ball valve (V03) and a twelfth ball valve (V12) are provided in sequence in the pipeline between the drainage pipe of the circulating water tank (T04) and the water inlet of the hydrophilic circulating pump (P01); The water outlet of the water collecting frame of the circulating water tank (T04) is connected between the third ball valve (V03) and the twelfth ball valve (V12) through a pipeline, and the first ball valve (V01) is provided in the pipeline; The drainage pipe of the circulating water tank (T04) is also connected to an emptying pipe, and a fourth ball valve (V04) is provided in the emptying pipe.

2. The repair system of the 10 nanometer MBR membrane assembly according to claim 1, characterized in that: The clean water tank (T02) has a water outlet and a water return port; A twenty-first ball valve (V21) is provided in the pipeline between the water outlet of the clean water tank (T02) and the water inlet of the clean water circulation pump (P02), and a second check valve (CV2), a twenty-third ball valve (V23), a second electromagnetic flowmeter (F02), a twenty-fourth ball valve (V24) and a sixth ball valve (V06) are provided in sequence in the pipeline between the water outlet of the clean water circulation pump (P02) and the water inlet pipe of the circulating water tank (T04); The water return port of the clean water tank (T02) is connected between the second check valve (CV2) and the twenty-third ball valve (V23) through a pipeline, and a twenty-fifth ball valve (V25) is provided in the pipeline; A seventh ball valve (V07) and a twenty-second ball valve (V22) are provided in sequence in the pipeline between the drainage pipe of the circulating water tank (T04) and the water inlet of the clean water circulating pump (P02); The water outlet of the water collecting frame of the circulating water tank (T04) is connected between the seventh ball valve (V07) and the twenty-second ball valve (V22) through a pipeline, and a fifth ball valve (V05) is provided in the pipeline.

3. The repair system of the 10 nanometer MBR membrane assembly according to claim 1, characterized in that: The pore-maintaining solution tank (T03) has a water outlet and a water return port; A thirty-first ball valve (V31) is provided in the pipeline between the water outlet of the pore-preserving solution tank (T03) and the water inlet of the pore-preserving solution circulation pump (P03); The water outlet of the pore-maintaining liquid circulation pump (P03) is connected between the twenty-fourth ball valve (V24) and the sixth ball valve (V06) through a pipeline, and the third check valve (CV3), the thirty-third ball valve (V33), the third electromagnetic flowmeter (F03) and the thirty-fourth ball valve (V34) are sequentially arranged in the pipeline; The water return port of the hole-maintaining solution tank (T03) is connected between the third check valve (CV3) and the thirty-third ball valve (V33) through a pipeline, and a thirty-fifth ball valve (V35) is provided in the pipeline; The water inlet of the pore-maintaining liquid circulation pump (P03) is also connected between the fifth ball valve (V05) and the twenty-second ball valve (V22) through a pipeline, and a thirty-second ball valve (V32) is provided in the pipeline.

4. The repair system of the 10 nanometer MBR membrane assembly according to claim 1, characterized in that: The water outlet of the water collecting frame of the circulating water tank (T04) is also connected to an exhaust pipe, and an exhaust ball valve (V00) is provided in the exhaust pipe.

5. A method for repairing a 10 nanometer MBR membrane assembly, characterized in that: Follow these steps: S1. Place the MBR membrane assembly: Place the MBR membrane assembly into the circulating water tank (T04), and connect the water outlet of the MBR membrane assembly to the membrane assembly connecting pipe; S2, hydrophilization cycle: repair the MBR membrane components through the hydrophilization solution in the hydrophilization solution tank (T01); S2.1, adding hydrophilic solution: add the hydrophilic solution in the hydrophilic solution tank (T01) into the circulating water tank (T04) through the hydrophilic circulation pump (P01); S2.2, external circulation of hydrophilization: control the drainage pipe of the circulating water tank (T04) to be connected with the water inlet of the hydrophilization circulating pump (P01), and the water outlet of the hydrophilization circulating pump (P01) to the water inlet pipe of the circulating water tank (T04), so that the hydrophilization liquid circulates outside the MBR membrane module under the action of the hydrophilization circulating pump (P01) for 1-3 minutes; S2.3, hydrophilic internal circulation: control the water outlet of the water collecting frame of the circulating water tank (T04) to be connected with the water inlet of the hydrophilic circulating pump (P01), and the water outlet of the hydrophilic circulating pump (P01) to the water inlet pipe of the circulating water tank (T04), so that the hydrophilic liquid continuously enters the inside of the MBR membrane module from the outside under the action of the hydrophilic circulating pump (P01), and lasts for 3-5 minutes; S3, emptying: drain the liquid in the circulating water tank (T04) to the sewer through the drain pipe, or start the hydrophilization circulation pump (P01) to make it flow back to the hydrophilization solution tank (T01); S4, cleaning cycle: repair the MBR membrane components with clean water in the clean water tank (T02); S4.1, water injection: add the clean water in the clean water tank (T02) into the circulating water tank (T04) through the clean water circulation pump (P02); S4.2, clean water external circulation: control the drainage pipe of the circulating water tank (T04) to be connected with the water inlet of the clean water circulating pump (P02), and the water outlet of the clean water circulating pump (P02) to the water inlet pipe of the circulating water tank (T04), so that the clean water circulates outside the MBR membrane module under the action of the clean water circulating pump (P02) for 1-3 minutes; S4.3, clean water internal circulation: control the water outlet of the water collecting frame of the circulating water tank (T04) to be connected with the water inlet of the clean water circulating pump (P02), and the water outlet of the clean water circulating pump (P02) to the water inlet pipe of the circulating water tank (T04), so that clean water continuously enters the inside of the MBR membrane module from the outside under the action of the clean water circulating pump (P02), and lasts for 3-5 minutes; S5. Drain: drain the liquid in the circulating water tank (T04) to the sewer through the drain pipe, or start the clean water circulation pump (P02) to make it flow back to the clean water tank (T02); S6, pore-maintaining solution circulation: repair the MBR membrane components through the pore-maintaining solution in the pore-maintaining solution tank (T03); S6.

1. Adding pore-preserving solution: Add the clean water in the pore-preserving solution tank (T03) into the circulating water tank (T04) through the pore-preserving solution circulating pump (P03); S6.2, external circulation of pore-preserving solution: control the drainage pipe of the circulating water tank (T04) to be connected with the water inlet of the pore-preserving solution circulating pump (P03), and the water outlet of the pore-preserving solution circulating pump (P03) to the water inlet pipe of the circulating water tank (T04), so that the pore-preserving solution circulates outside the MBR membrane module under the action of the pore-preserving solution circulating pump (P03) for 1-3 minutes; S6.3, internal circulation of pore-maintaining solution: control the water outlet of the water collecting frame of the circulating water tank (T04) to be connected with the water inlet of the pore-maintaining solution circulating pump (P03), and the water outlet of the pore-maintaining solution circulating pump (P03) to the water inlet pipe of the circulating water tank (T04), so that the pore-maintaining solution continuously enters the inside of the MBR membrane module from the outside under the action of the pore-maintaining solution circulating pump (P03), and lasts for 3-5 minutes; S7, emptying: drain the liquid in the circulating water tank (T04) to the sewer through the drain pipe, or start the pore-maintaining liquid circulation pump (P03) to make it flow back to the pore-maintaining solution tank (T03); S8. Drain and pack: Take out the MBR membrane components after the final pore preservation treatment, drain and pack.

6. A method for repairing a 10 nanometer MBR membrane assembly according to claim 5, characterized in that: The hydrophilization liquid used in step S2 is one of ethanol, acetone, isopropanol, DMAC, and DMF, or a mixture of several of them.

7. A method for repairing a 10 nanometer MBR membrane assembly according to claim 5, characterized in that: The pore retaining agent used in step S6 is one or a mixture aqueous solution of glycerol, NaClO, CaCl2, PVA, and PEG400.

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