CN220745495U - Off-line film supplementing device for large seawater desalination ultrafiltration film - Google Patents
Off-line film supplementing device for large seawater desalination ultrafiltration film Download PDFInfo
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- CN220745495U CN220745495U CN202321950658.XU CN202321950658U CN220745495U CN 220745495 U CN220745495 U CN 220745495U CN 202321950658 U CN202321950658 U CN 202321950658U CN 220745495 U CN220745495 U CN 220745495U
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- water inlet
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- branch pipe
- support frame
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- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 38
- 239000013535 sea water Substances 0.000 title claims abstract description 19
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 17
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 16
- 239000012528 membrane Substances 0.000 claims abstract description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 241000251468 Actinopterygii Species 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
- 239000011550 stock solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 150000002605 large molecules Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses an off-line film supplementing device for a large seawater desalination ultrafiltration film, which belongs to the technical field of seawater desalination and comprises a manual operation table, fixing frames, a film element mounting table and a film detection device. The beneficial effects are as follows: the downtime is reduced, and under the condition of not influencing production, the ultrafiltration membrane group with broken wires recovers the water quality of the new membrane produced water.
Description
Technical Field
The utility model belongs to the technical field of sea water desalination, and particularly relates to an off-line film supplementing device for a large sea water desalination ultrafiltration film.
Background
The ultrafiltration membrane applied to seawater desalination has the advantages that the ultrafiltration time is long, the water quality of inflow water is poor, so that the gas scrubbing frequency is high, the strength is strong, the yarn breakage phenomenon of the ultrafiltration membrane can be caused, the turbidity of ultrafiltration water is increased, the water quality is reduced, and the operation of a reverse osmosis system is influenced. If the maintenance is carried out on a large device, the whole set of device is stopped for maintenance, or the whole set of device is used for replacing the membrane, so that the long-time production stopping of the unit can be caused, and the productivity is seriously reduced.
Ultrafiltration is one of the membrane separation technologies that uses pressure as the driving force. The substances are selectively separated through a microporous structure on the surface of the membrane, and when the mixed solution flows through the surface of the membrane under a certain pressure, small molecular solutes permeate the membrane and are called filtrate; the macromolecular substances are intercepted, so that the concentration of the macromolecules in the stock solution is gradually increased, and the stock solution is called concentrated solution; thereby realizing the purposes of separating large and small molecules, concentrating stock solution and purifying produced water.
In the aspect of sea water desalination, ultrafiltration can be used as pretreatment equipment for primary filtration of sea water, and suspended matters, colloid, macromolecular particles and most of bacteria and viruses in the sea water are removed, so that long-term safe and stable operation of subsequent equipment such as reverse osmosis and the like is ensured.
However, because of high-strength continuous operation, high-pollution water inflow can ensure that the ultrafiltration membrane has high gas scrubbing frequency and strong strength, thereby generating a wire breakage phenomenon, further ensuring that the quality of produced water is poor, and failing to meet the use requirement of the subsequent reverse osmosis membrane.
After this occurs, the service personnel can repair broken wires on a large device or select membrane element replacement. When the membrane wire is maintained on a large device, the whole set of device is stopped or the membrane is replaced by the whole set of device, so that the long-time production stopping of the unit can be caused, and the productivity is seriously reduced. It is urgently needed to develop a device, which can rapidly maintain the broken ultrafiltration membrane element offline, and after maintaining a part of membrane elements, can replace other broken membrane elements in the membrane group to perform the alternative maintenance of the broken membrane elements, so as to reduce the downtime and recover the water quality of the new membrane produced water by the ultrafiltration membrane group without affecting the production.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides an off-line maintenance device for a large-scale seawater desalination ultrafiltration membrane. The device can be used for off-line repair aiming at the condition of yarn breakage of the ultrafiltration membrane under the condition of not influencing water production, and can be used as an off-line cleaning experimental device for the ultrafiltration membrane element.
The utility model provides a large-scale sea water desalination milipore filter off-line membrane supplementing device, includes manual operation platform, mount, membrane element mount table, membrane detection device, the top both sides of manual operation platform are provided with the mount, one side or the front and back both sides of manual operation platform are provided with the membrane element mount table respectively, membrane detection device is installed to the centre of membrane element mount table.
Further, the fixing frame comprises a front fixing support and a rear fixing support, and the front fixing support and the rear fixing support are respectively and fixedly arranged at the top end of the manual operation table.
Further, the membrane element mounting table comprises a left support frame, a right support frame, an upper support frame and a lower support frame, wherein the left support frame and the right support frame are respectively and fixedly mounted at two ends of the middle of the upper support frame and the lower support frame, and a plurality of support rods are arranged on the upper support frame.
Further, the membrane detection device comprises a water inlet main pipe, a water inlet switch, a water inlet branch pipe, a water inlet switch and a water inlet branch pipe, one end of the water inlet branch pipe is connected with the water inlet main pipe, one end of the water inlet branch pipe is connected with the water inlet branch pipe, the water inlet switch is arranged between the position where the water inlet branch pipe is connected with the water inlet branch pipe and the water inlet main pipe, and the water inlet switch is arranged on the water inlet branch pipe.
Further, the fixed support and the rear fixed support are respectively grids with a space in the middle.
The beneficial effects obtained by the utility model are as follows: the downtime is reduced, and the repairing operation is convenient under the condition of not influencing the production; the normal use of the ultrafiltration membrane element is not affected after repair, the quality of filtered water is further ensured, and the ultrafiltration membrane group with broken wires recovers the quality of new membrane produced water.
Drawings
FIG. 1 is a schematic structural diagram of an off-line membrane supplementing device of a large seawater desalination ultrafiltration membrane;
FIG. 2 is a schematic view of a membrane element mounting stage;
FIG. 3 is a schematic diagram of a membrane detection apparatus;
the reference numerals in the drawings are:
the device comprises a manual operation table 1, a front fixing support 2, a rear fixing support 3, a membrane element mounting table 4, a left support frame 5, an upper support frame 6, a support rod 7, a right support frame 8, a lower support frame 9, a water inlet main pipe 10, an air inlet main pipe 11, a water inlet switch 12, a water inlet branch pipe 13, an air inlet switch 14 and an air inlet branch pipe 15.
Detailed Description
Example 1
1-3, a large-scale sea water desalination milipore filter off-line membrane supplementing device, including manual operation platform 1, mount, membrane element mount table 4, membrane detection device, manual operation platform 1's top both sides are provided with the mount, manual operation platform 1's front and back both sides are provided with membrane element mount table 4 respectively, membrane detection device is installed to membrane element mount table 4's centre.
The fixing frame comprises a front fixing support 2 and a rear fixing support 3, and the front fixing support 2 and the rear fixing support 3 are respectively and fixedly arranged at the top end of the manual operation table 1.
The membrane element mounting table 4 comprises a left support frame 5, a right support frame 8, an upper support frame 6 and a lower support frame 9, wherein the left support frame 5 and the right support frame 8 are respectively and fixedly mounted at two ends of the middle of the upper support frame 6 and the lower support frame 9, and a plurality of support rods 7 are arranged on the upper support frame 6.
The membrane detection device comprises a water inlet main pipe 10, a water inlet main pipe 11, a water inlet switch 12, a water inlet branch pipe 13, a water inlet switch 14 and a water inlet branch pipe 15, wherein one end of the water inlet branch pipe 13 is connected with the water inlet main pipe 10, one end of the water inlet branch pipe 15 is connected with the water inlet main pipe 11, one end of the water inlet branch pipe 15 is connected with the water inlet branch pipe 13, the water inlet switch 12 is arranged between the position where the water inlet branch pipe 13 is connected with the water inlet branch pipe 15 and the water inlet main pipe 10, and the water inlet switch 14 is arranged on the water inlet branch pipe 15.
The front fixing support 2 and the rear fixing support 3 are respectively grids with blank spaces in the middle.
The using method of the off-line film supplementing of the external pressure type ultrafiltration film element comprises the following steps:
1. the external pressure type ultrafiltration membrane element is vertically fixed on a membrane element mounting table 4, the side wall of the ultrafiltration membrane element is fixed on a rear fixed bracket 3, and the top height of the external pressure type ultrafiltration membrane element is basically level with the top of the rear fixed bracket 3;
2. the water inlet pipe of the external pressure type ultrafiltration membrane element is connected with the water inlet branch pipe 13;
3. removing a water producing side end cover of the external pressure type ultrafiltration membrane element, leaking out inner membrane wires, and blocking a concentrated water hole of the external pressure type ultrafiltration membrane element by using a blocking rod;
4. opening the water inlet switch 12, filling fresh water into the water inlet pipe of the external pressure type ultrafiltration membrane element until the top reaches a full water state, and closing the water inlet switch 12;
5. opening an air inlet switch 14 to blow air to the external pressure type ultrafiltration membrane element;
6. observing whether air bubbles are generated in membrane wire outlet holes on the water producing side of the external pressure type ultrafiltration membrane element;
7. after the bubbles are found, the membrane wire holes which leak air are blocked by using a fish wire or a pin;
8. continuously observing whether air bubbles are generated by the membrane filaments or not until no air bubbles appear;
9. evacuating fresh water in the external pressure type ultrafiltration membrane element;
10. taking down the blocked fish wire or the pin, blocking by using the glued fish wire, and discarding the blocked film wire;
11. after the fish line glue is dried, cutting off the redundant fish line part;
12. recovering the water producing side end cover of the external pressure type ultrafiltration membrane element.
The membrane wires without damage are airtight, bubbles can be generated after the damaged membrane wires are breathable, the principle can be used for judging which membrane wires are damaged, plugging is carried out after the damaged membrane wires are found, a small amount of damaged membrane wires are not used, the normal use of an external pressure type ultrafiltration membrane element is not influenced, the quality of filtered water is further ensured, and the ultrafiltration membrane group with broken wires is enabled to recover the water quality of new membrane produced water.
Claims (5)
1. The utility model provides a large-scale sea water desalination milipore filter off-line mends membrane device which characterized in that: the device comprises a manual operation table (1), a fixing frame, a membrane element mounting table (4) and a membrane detection device, wherein the fixing frame is arranged on two sides of the top end of the manual operation table (1), the membrane element mounting table (4) is respectively arranged on one side or front and back sides of the manual operation table (1), and the membrane detection device is arranged in the middle of the membrane element mounting table (4).
2. The off-line membrane supplementing device for a large-scale seawater desalination ultrafiltration membrane according to claim 1, wherein the off-line membrane supplementing device is characterized in that: the fixing frame comprises a front fixing support (2) and a rear fixing support (3), and the front fixing support (2) and the rear fixing support (3) are respectively and fixedly arranged at the top end of the manual operation table (1).
3. The off-line membrane supplementing device for a large-scale seawater desalination ultrafiltration membrane according to claim 1, wherein the off-line membrane supplementing device is characterized in that: the membrane element mounting table (4) comprises a left support frame (5), a right support frame (8), an upper support frame (6) and a lower support frame (9), wherein the left support frame (5) and the right support frame (8) are respectively and fixedly mounted at two ends of the middle of the upper support frame (6) and the lower support frame (9), and a plurality of support rods (7) are arranged on the upper support frame (6).
4. The off-line membrane supplementing device for a large-scale seawater desalination ultrafiltration membrane according to claim 1, wherein the off-line membrane supplementing device is characterized in that: the membrane detection device comprises a water inlet main pipe (10), a water inlet main pipe (11), a water inlet switch (12), a water inlet branch pipe (13), a water inlet switch (14) and a water inlet branch pipe (15), wherein one end of the water inlet branch pipe (13) is connected with the water inlet main pipe (10), one end of the water inlet branch pipe (15) is connected with the water inlet main pipe (11), one end of the water inlet branch pipe (15) is connected with the water inlet branch pipe (13), the water inlet switch (12) is arranged between the position where the water inlet branch pipe (13) is connected with the water inlet branch pipe (15) and the water inlet main pipe (10), and the water inlet switch (14) is arranged on the water inlet branch pipe (15).
5. The off-line membrane supplementing device for a large-scale seawater desalination ultrafiltration membrane according to claim 2, wherein the off-line membrane supplementing device is characterized in that: the front fixing support (2) and the rear fixing support (3) are respectively grids with space in the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321950658.XU CN220745495U (en) | 2023-07-24 | 2023-07-24 | Off-line film supplementing device for large seawater desalination ultrafiltration film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321950658.XU CN220745495U (en) | 2023-07-24 | 2023-07-24 | Off-line film supplementing device for large seawater desalination ultrafiltration film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220745495U true CN220745495U (en) | 2024-04-09 |
Family
ID=90548849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321950658.XU Active CN220745495U (en) | 2023-07-24 | 2023-07-24 | Off-line film supplementing device for large seawater desalination ultrafiltration film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220745495U (en) |
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2023
- 2023-07-24 CN CN202321950658.XU patent/CN220745495U/en active Active
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