CN115477366B - Anti-pollution reverse osmosis membrane device - Google Patents
Anti-pollution reverse osmosis membrane device Download PDFInfo
- Publication number
- CN115477366B CN115477366B CN202211284077.7A CN202211284077A CN115477366B CN 115477366 B CN115477366 B CN 115477366B CN 202211284077 A CN202211284077 A CN 202211284077A CN 115477366 B CN115477366 B CN 115477366B
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- reverse osmosis
- osmosis membrane
- central tube
- sleeve
- fixed
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- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 96
- 239000012528 membrane Substances 0.000 title claims abstract description 90
- 230000006835 compression Effects 0.000 claims abstract description 45
- 238000007906 compression Methods 0.000 claims abstract description 45
- 238000004140 cleaning Methods 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 239000002184 metal Substances 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 6
- 238000011403 purification operation Methods 0.000 claims description 6
- 239000008213 purified water Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The anti-pollution reverse osmosis membrane device comprises a pressure container and a reverse osmosis membrane element, wherein the pressure container is provided with a front end fixing ring and a rear end fixing ring which are respectively arranged at two ends, fixing sleeves are respectively extended inwards from the front end fixing ring and the rear end fixing ring, two ends of the fixing sleeves opposite to each other are respectively fixed with two ends of a hose sleeve, sliding rings are sleeved on the fixing sleeves, and compression expansion plates are uniformly distributed between the two sliding rings; the sliding ring is sleeved with a locking sleeve; the locking sleeve is connected with an external first rotary driving mechanism in a linkage way; the two ends of the reverse osmosis membrane element are provided with fixed covers which are respectively fixed on the two ends of the inner side of the fixed sleeve; the reverse osmosis membrane element is composed of a central tube and a reverse osmosis membrane assembly, one end of the reverse osmosis membrane assembly is fixed on the outer side wall of the central tube, the central tube can penetrate through the center of the fixed cover in a rotating mode, and the protruding portion of the central tube is used for being connected with an external second rotary driving mechanism. The invention has stronger self-cleaning capability and can effectively improve the pollution resistance of the reverse osmosis membrane.
Description
Technical Field
The invention relates to a water quality purification technology, in particular to an anti-pollution reverse osmosis membrane device.
Background
Water quality purification is an important technology for improving the living environment of human beings on the earth, and today, the industrial development is more and more developed, and the technology of sewage treatment, domestic water purification and water resource obtaining by purifying water sources in sewage areas are all necessary technologies for enabling human beings to continue to survive on the earth. Among the techniques for purifying water, the method of obtaining purified water source by reverse osmosis membrane technology is one of the most economical and efficient methods. The reverse osmosis membrane is an artificial semipermeable membrane with certain characteristics, which is made of a simulated biological semipermeable membrane, and is a core component of the reverse osmosis technology. The principle of reverse osmosis is to separate other substances from water under the action of osmotic pressure higher than that of solution according to the fact that the substances cannot permeate through a semipermeable membrane. The pore size of the reverse osmosis membrane is very small, so that dissolved salts, colloids, microorganisms, organic matters and the like in water can be effectively removed. Has the advantages of good water quality, low energy consumption, no pollution, simple process, simple and convenient operation, etc. However, the reverse osmosis membrane device generally adopts a reel type structure, and after water enters from the front end, the product water which is separated and purified and the concentrated water which retains pollutants are obtained through the diversion of the reeled reverse osmosis membrane; new water resources are obtained by collecting the product water.
However, for raw water with more pollutants and poor purification of early-stage pollutants, the reverse osmosis membrane is easily polluted by pollutants with larger particles, and is gradually blocked, so that the water yield is gradually reduced, the filtering and purifying effects of the reverse osmosis membrane are reduced, and even the continuous water production cannot be realized.
Disclosure of Invention
The invention solves the technical problem of providing the anti-pollution reverse osmosis membrane device, which can effectively improve the anti-pollution capability of the reverse osmosis membrane.
The technical scheme of the invention is as follows:
an anti-pollution reverse osmosis membrane device, which comprises a pressure vessel and a reverse osmosis membrane element,
the pressure container is provided with an inner cylinder and a locking sleeve, two ends of the inner cylinder are respectively provided with a front end fixing ring and a rear end fixing ring, the front end fixing ring and the rear end fixing ring are respectively extended with the fixing sleeve in the inward direction, two opposite ends of the fixing sleeve are respectively fixed with two ends of a hose sleeve, sliding rings are sleeved on the fixing sleeve in a sliding manner, two opposite ends of the sliding rings are respectively and pivotally connected with a plurality of compression expansion plates uniformly distributed along the circumferential direction, and the compression expansion plates are formed by pivotally connecting a plurality of metal plate bodies along the length direction; when the compression expansion plate is straightened in line, the length of the compression expansion plate is equal to the maximum distance between the two sliding rings; the outer surface of the sliding ring is provided with an external thread part, the sliding ring is sleeved with a locking sleeve, and the inner side surface of the locking sleeve is provided with a corresponding meshed internal thread part corresponding to the external thread part; one end of the locking sleeve, which faces the compression expansion plate, is provided with a gradually flaring; the locking sleeve is in linkage connection with an external first rotary driving mechanism;
the reverse osmosis membrane element is of a columnar structure, two ends of the reverse osmosis membrane element are provided with fixed covers which are used for being inserted into the hose sleeve of the inner cylinder, and the fixed covers are respectively fixed on two ends of the inner side of the fixed sleeve; the reverse osmosis membrane element is composed of a central tube and a reverse osmosis membrane assembly, one end of the reverse osmosis membrane assembly is fixed on the outer side wall of the central tube, the central tube can rotatably penetrate through the center of the fixed cover, and the protruding portion of the central tube is used for being connected with an external second rotary driving mechanism.
The anti-pollution reverse osmosis membrane device is characterized in that compression elastic pieces are arranged between the two sliding rings and the front end fixing ring and the rear end fixing ring respectively.
The anti-pollution reverse osmosis membrane device is characterized in that the front end of the central tube is provided with an electromagnetic valve, and the front end of the electromagnetic valve is communicated with the raw water inlet end; when the rotary cleaning operation is carried out, the first rotary driving mechanism drives the locking sleeve to rotate, the locking sleeve withdraws to one side far away from the compression expansion plate under the action of threads, and the sliding ring moves to the area between the two fixed sleeves, so that the compression expansion plate is jacked outwards, and a cleaning cavity which is bulged outside the reverse osmosis membrane element is formed; the electromagnetic valve is opened, and the raw water inlet end is closed; the purified water of the central tube enters the cleaning cavity through the front end of the reverse osmosis membrane element; the second rotary driving mechanism drives the central tube to rotate, and the central tube drives the reverse osmosis membrane assembly to rotate and swing in the cleaning cavity.
The anti-pollution reverse osmosis membrane device as described above, wherein the electromagnetic valve is closed when reverse osmosis water purification operation is performed; the first rotary driving mechanism drives the locking sleeve to rotate so as to move towards the direction of the compression expansion plate, and the central tube keeps a set rotation speed until the locking sleeve presses the compression expansion plate to form a straight line shape; and then starting the raw water inlet end to start reverse osmosis water purification operation.
The anti-pollution reverse osmosis membrane device is characterized in that the compression expansion plate is formed by pivotally connecting three metal plate bodies, and the length ratio of the middle plate body to the two side plate bodies is in the range of 2:1 to 4:1.
From the above description, it is clear that the present invention has the following advantages:
the anti-pollution reverse osmosis membrane device provided by the invention is different from the use modes of a reverse osmosis membrane element and a high-pressure container in the prior art, and the pressure container capable of changing the shape of the container according to the use requirement is skillfully designed, so that the anti-pollution reverse osmosis membrane device has stronger and more effective cleaning effect in the online cleaning process, and better anti-pollution effect is achieved.
Drawings
FIG. 1 is a schematic diagram showing a compressed purge state according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view showing a cleaning and anti-fouling structure according to a preferred embodiment of the present invention.
Reference numerals for main elements:
the invention comprises the following steps:
1: front end fixing ring 2: rear end fixing ring 3: fixed sleeve
4: slip ring 5: locking sleeve 6: hose cover
7: reverse osmosis membrane module 8: fixed lid 9: central tube
10: solenoid valve 11: compression expansion plate 12: gradual flaring
13: metal cladding
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present invention, a specific embodiment of the present invention will be described with reference to the accompanying drawings.
In a preferred embodiment of the anti-pollution reverse osmosis membrane device, as shown in fig. 1 to 2, the anti-pollution reverse osmosis membrane device of the present invention comprises a pressure vessel and a reverse osmosis membrane element, wherein the pressure vessel is provided with an inner cylinder and a locking sleeve 5, two ends of the inner cylinder are respectively provided with a front end fixing ring 1 and a rear end fixing ring 2, and preferably, the front end fixing ring 1 and the rear end fixing ring 2 are fixed on an external fixing bracket mechanism; the front end fixing ring 1 and the rear end fixing ring 2 are respectively extended with a fixing sleeve 3 in the inward direction, two opposite ends of the fixing sleeve 3 are respectively fixed with two ends of a hose sleeve 6, a sliding ring 4 is sleeved on the fixing sleeve 3 in a sliding manner, two opposite ends of the sliding ring 4 are respectively connected with a plurality of compression expansion plates 11 in a pivoted manner, and the compression expansion plates 11 are formed by pivotally connecting a plurality of metal plate bodies in the length direction; when the compression-expansion plates 11 are straightened out in line, the length of the compression-expansion plates 11 is equal to the maximum distance between the two sliding rings 4; the outer surface of the sliding ring 4 is provided with an external thread part, the sliding ring 4 is sleeved with a locking sleeve 5, and the inner side surface of the locking sleeve 5 is provided with a corresponding meshed internal thread part corresponding to the external thread part; one end of the locking sleeve 5 facing the compression expansion plate 11 is provided with a gradual flaring 12; the locking sleeve 5 is connected with an external first rotary driving mechanism in a linkage way.
The reverse osmosis membrane element is of a columnar structure, two ends of the reverse osmosis membrane element are provided with fixed covers 8 which are used for being inserted into the hose sleeve 6 of the inner cylinder, and the fixed covers 8 are respectively fixed on two ends of the inner side of the fixed sleeve 3; the reverse osmosis membrane element is composed of a central tube 9 and a reverse osmosis membrane assembly 7 with one end fixed on the outer side wall of the central tube 9, the central tube 9 can rotatably penetrate through the center of the fixed cover 8, and the protruding part of the central tube 9 is used for being connected with an external second rotary driving mechanism.
Preferably, as shown in the figure, the reverse osmosis membrane component 7 of the reverse osmosis membrane element is a combination of a folded reverse osmosis membrane and a separation net, and the open end of the reverse osmosis membrane component is fixed with the central tube 9 and is rolled and stacked together with the outer side surface of the central tube 9 along the same direction; the reverse osmosis membrane elements are inserted into the inner cylinder of the pressure container, the fixed covers 8 at the two ends of the reverse osmosis membrane elements are respectively fixed at the end positions of the inner side surfaces of the two fixed sleeves 3, and the hose sleeve 6 is coated outside the reverse osmosis membrane elements 7; when raw water purification operation is performed, the first rotary driving mechanism drives the locking sleeve 5 to rotate, through the functions of the internal threads of the locking sleeve and the external threads of the sliding ring 4, the sliding ring 4 gradually moves to the inside of the locking sleeve 5, the divergent opening 12 of the locking sleeve 5 is contacted with and gradually presses the compression expansion plate 11 which expands outwards towards the reverse osmosis membrane element, and the compression expansion plate 11 forms a straight plate parallel to the central axis of the inner cylinder in cooperation with the pulling action of the sliding ring 4, so that the compression expansion plate 11 is fixed by the coating of the locking sleeve 5 to form a cylindrical structure, the reverse osmosis membrane element is coated in the cylindrical structure, the size of the space around the reverse osmosis membrane element is reduced, and high-pressure reverse osmosis is facilitated to perform raw water purification. When the reverse osmosis membrane assembly 7 needs to be cleaned after long-term cleaning operation, the first rotary driving mechanism is operated to control the locking sleeve 5 to reversely loosen the compression expansion plate 11, and the compression expansion plate 11 protrudes outwards through the extrusion of the two ends of the sliding ring 4 to move towards the middle, so that the hose sleeve 6 can expand to the inner side wall of a space with larger inner diameter formed after the compression expansion plate 11 protrudes outwards under the action of internal pressure to form a cleaning cavity; thereby, the reverse osmosis membrane module 7 can be stretched outwards to be in a loose state. After the cleaning liquid with a certain pressure is introduced, the second rotary driving mechanism is controlled to drive the central tube 9 to rotate, the reverse osmosis membrane module 7 can be driven to rotate back and forth in the cleaning cavity for cleaning according to the set rotary driving configuration, and pollutants on the reverse osmosis membrane module 7 can be effectively cleaned into the cleaning liquid through centrifugal force and a cleaning mode similar to stirring in the cleaning liquid; after the cleaning is completed, the reverse osmosis membrane module 7 is restored to a smaller cylindrical state by controlling the compression expansion plate 11 to be pressed inwards, so that the raw water purifying operation can be performed again. Of course, a sliding limiting structure is preferably provided between the sliding ring 4 and the fixed sleeve 3, so as to limit the rotation of the sliding ring 4.
In the preferred embodiment, the outer part of the compression expansion plate 11 is provided with a rigid metal coating 13 for coating the compression expansion plate 11 after the compression expansion plate 11 protrudes outwards to the maximum distance, so that the inner hose cover 6 can be better kept from protruding outwards from the gap between the compression expansion plates 11 after being expanded. Preferably, the metal sheath 13 may be fixed to the front end fixing ring 1 and the rear end fixing ring 2, or may be fixed to other fixing structures.
In the preferred embodiment of the anti-pollution reverse osmosis membrane device of the present invention, compression elastic members are disposed between the two sliding rings 4 and the front end fixing ring 1 and the rear end fixing ring 2, respectively. Preferably, a compression elastic member is arranged between the sliding ring 4 and the front end fixing ring 1 and the rear end fixing ring 2, and is used for applying a pushing force to the sliding ring 4 to push the sliding ring inwards, so that the sliding ring keeps a convex state after the lock sleeve is withdrawn, and a cleaning cavity formed by the convex state is formed stably.
In the preferred embodiment of the anti-pollution reverse osmosis membrane device of the present invention, the front end of the central tube 9 is provided with the electromagnetic valve 10, and the front end of the electromagnetic valve 10 is communicated with the raw water inlet end; when the rotary cleaning operation is performed, the first rotary driving mechanism drives the locking sleeve 5 to rotate, the locking sleeve 5 is withdrawn to one side far away from the compression expansion plate 11 under the action of threads, the sliding ring 4 moves to a region between the two fixed sleeves 3, so that the compression expansion plate 11 is jacked outwards, and a cleaning cavity which bulges outside the reverse osmosis membrane element is formed; the electromagnetic valve 10 is opened, and the raw water inlet end is closed; the purified water of the central pipe 9 enters the cleaning cavity through the front end of the reverse osmosis membrane element; the second rotary driving mechanism drives the central tube 9 to rotate, and the central tube 9 drives the reverse osmosis membrane assembly 7 to rotate and swing in the cleaning cavity. In this embodiment, the central tube 9 is preferably connected to the front raw water inlet end via the electromagnetic valve 10, so that clean water can be backflushed to the outer side of the reverse osmosis membrane module 7 for cleaning in the cleaning process, and the effect of cleaning and removing pollutants is improved.
In the anti-pollution reverse osmosis membrane device of the present invention as described above, in a preferred embodiment, the electromagnetic valve 10 is closed when reverse osmosis water purification is performed; the first rotation driving mechanism drives the locking sleeve 5 to rotate so as to move towards the compression expansion plate 11, and keeps the central tube 9 at a set rotation speed until the locking sleeve 5 compresses the compression expansion plate 11 to form a straight line shape; and then starting the raw water inlet end to start reverse osmosis water purification operation. In this embodiment, preferably, through rotatory drive all reverse osmosis membrane module 7 subassembly rotates towards a direction, can make all reverse osmosis membrane module 7 fold towards a direction, can not make reverse osmosis membrane module 7 take place the fold phenomenon, also can guarantee better to wash completely, resumes before can carrying out the operation process of purifying raw water, does not have the reverse osmosis membrane module 7 of fold to hinder the process that hose cover 6 was compressed, has protected the integrality and the stack gesture of reverse osmosis membrane element well, guarantees that reverse osmosis membrane module 7 can not be damaged.
In the preferred embodiment of the anti-pollution reverse osmosis membrane device of the present invention, the compression expansion plate 11 is formed by pivotally connecting three metal plate bodies, and the length ratio of the middle plate body to the two side plate bodies ranges from 2:1 to 4:1. Preferably, the number of the metal plate bodies is three, and the length ratio is 2:1 to 4:1, so that a larger cleaning cavity can be effectively formed, the manufacturing cost can be effectively reduced, the structure is simplified, the structural strength is improved, and the metal plate has longer service life.
The anti-pollution reverse osmosis membrane device provided by the invention is different from the use modes of a reverse osmosis membrane element and a high-pressure container in the prior art, and the pressure container capable of changing the shape of the container according to the use requirement is skillfully designed, so that the anti-pollution reverse osmosis membrane device has stronger and more effective cleaning effect in the online cleaning process, and better anti-pollution effect is achieved.
The foregoing is illustrative of the present invention and is not to be construed as limiting the scope of the invention. Any equivalent changes and modifications can be made by those skilled in the art without departing from the spirit and principles of this invention, and are intended to be within the scope of this invention.
Claims (2)
1. An anti-pollution reverse osmosis membrane device is characterized by comprising a pressure vessel and a reverse osmosis membrane element,
the pressure container is provided with an inner cylinder and a locking sleeve, two ends of the inner cylinder are respectively provided with a front end fixing ring and a rear end fixing ring, the front end fixing ring and the rear end fixing ring are respectively extended with the fixing sleeve in the inward direction, two opposite ends of the fixing sleeve are respectively fixed with two ends of a hose sleeve, sliding rings are sleeved on the fixing sleeve in a sliding manner, two opposite ends of the sliding rings are respectively and pivotally connected with a plurality of compression expansion plates uniformly distributed along the circumferential direction, and the compression expansion plates are formed by pivotally connecting a plurality of metal plate bodies along the length direction; when the compression expansion plate is straightened in line, the length of the compression expansion plate is equal to the maximum distance between the two sliding rings; the outer surface of the sliding ring is provided with an external thread part, the sliding ring is sleeved with a locking sleeve, and the inner side surface of the locking sleeve is provided with a corresponding meshed internal thread part corresponding to the external thread part; one end of the locking sleeve, which faces the compression expansion plate, is provided with a gradually flaring; the locking sleeve is in linkage connection with an external first rotary driving mechanism;
the reverse osmosis membrane element is of a columnar structure, two ends of the reverse osmosis membrane element are provided with fixed covers which are used for being inserted into the hose sleeve of the inner cylinder, and the fixed covers are respectively fixed on two ends of the inner side of the fixed sleeve; the reverse osmosis membrane element consists of a central tube and a reverse osmosis membrane assembly, one end of the reverse osmosis membrane assembly is fixed on the outer side wall of the central tube, the central tube can rotatably penetrate through the center of the fixed cover, and the protruding part of the central tube is used for being connected with an external second rotary driving mechanism;
compression elastic pieces are arranged between the two sliding rings and the front end fixing ring and between the two sliding rings and the rear end fixing ring respectively;
the front end of the central tube is provided with an electromagnetic valve, and the front end of the electromagnetic valve is communicated with the raw water inlet end; when the rotary cleaning operation is carried out, the first rotary driving mechanism drives the locking sleeve to rotate, the locking sleeve withdraws to one side far away from the compression expansion plate under the action of threads, and the sliding ring moves to the area between the two fixed sleeves, so that the compression expansion plate is jacked outwards, and a cleaning cavity which is bulged outside the reverse osmosis membrane element is formed; the electromagnetic valve is opened, and the raw water inlet end is closed; the purified water of the central tube enters the cleaning cavity through the front end of the reverse osmosis membrane element; the second rotary driving mechanism drives the central tube to rotate, and the central tube drives the reverse osmosis membrane assembly to rotationally swing in the cleaning cavity;
when reverse osmosis water purification operation is performed, the electromagnetic valve is closed; the first rotary driving mechanism drives the locking sleeve to rotate so as to move towards the direction of the compression expansion plate, and the central tube keeps a set rotation speed until the locking sleeve presses the compression expansion plate to form a straight line shape; and then starting the raw water inlet end to start reverse osmosis water purification operation.
2. The anti-pollution reverse osmosis membrane device according to claim 1, wherein the compression expansion plate is formed by pivotally connecting three metal plate bodies, and the length ratio of the middle plate body to the two side plate bodies is in the range of 2:1 to 4:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211284077.7A CN115477366B (en) | 2022-10-20 | 2022-10-20 | Anti-pollution reverse osmosis membrane device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211284077.7A CN115477366B (en) | 2022-10-20 | 2022-10-20 | Anti-pollution reverse osmosis membrane device |
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| Publication Number | Publication Date |
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| CN115477366A CN115477366A (en) | 2022-12-16 |
| CN115477366B true CN115477366B (en) | 2023-11-28 |
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| CN202211284077.7A Active CN115477366B (en) | 2022-10-20 | 2022-10-20 | Anti-pollution reverse osmosis membrane device |
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| JPH02102716A (en) * | 1988-10-12 | 1990-04-16 | Agency Of Ind Science & Technol | Liquid membrane separator provided with cleaning mechanism |
| JP2010012419A (en) * | 2008-07-04 | 2010-01-21 | Taiyo Nippon Sanso Corp | Cleaning method of filter in dust collector |
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| CN115477366A (en) | 2022-12-16 |
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Inventor after: Yu Jinghai Inventor after: Zhao Xiaoyang Inventor after: Ye Jundong Inventor after: Song Tao Inventor before: Yu Jinghai Inventor before: Zhao Xiaoyang Inventor before: Ye Jundong Inventor before: Song Tao |