CN109847589B - Inorganic membrane component and inorganic membrane filter - Google Patents
Inorganic membrane component and inorganic membrane filter Download PDFInfo
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- CN109847589B CN109847589B CN201910111506.2A CN201910111506A CN109847589B CN 109847589 B CN109847589 B CN 109847589B CN 201910111506 A CN201910111506 A CN 201910111506A CN 109847589 B CN109847589 B CN 109847589B
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- inorganic membrane
- sealing ring
- membrane tube
- tube
- inorganic
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- 239000012528 membrane Substances 0.000 title claims abstract description 141
- 238000007789 sealing Methods 0.000 claims abstract description 42
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 8
- 238000007689 inspection Methods 0.000 abstract description 8
- 230000004907 flux Effects 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 6
- 239000012267 brine Substances 0.000 description 8
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an inorganic membrane component which comprises at least one inorganic membrane tube, a sealing ring correspondingly communicated with the inorganic membrane tube and a positioning flower disc for fixing the sealing ring, wherein one end of the sealing ring is sleeved on the inorganic membrane tube, and the other end of the sealing ring is not lower than the surface of the positioning flower disc. According to the inorganic membrane component provided by the invention, the sealing ring is arranged between the inorganic membrane tube and the positioning flower disc, the sealing ring changes the groove between the existing positioning flower disc and the inorganic membrane tube into a convex surface, mechanical impurities or floccules are not easy to accumulate, a small amount of mechanical impurities or floccules can be removed through physical cleaning, the flux of the inorganic membrane component is ensured, the disassembly and inspection frequency of the inorganic membrane component is also reduced, the production efficiency is effectively improved, the breakage of the inorganic membrane tube can be reduced, and the production cost is further reduced.
Description
Technical Field
The invention relates to the technical field of membrane separation, in particular to an inorganic membrane component for reducing the frequency of disassembly and inspection.
Background
The inorganic membrane is a solid membrane processed by inorganic materials, and can be divided into various types such as metal membranes, glass membranes, ceramic membranes and the like according to membrane forming materials, wherein the ceramic membrane has the best thermal stability and is widely applied to various fields such as food, medicine, bioengineering, water treatment, chemical industry, petrochemical industry and the like.
The inorganic membrane filter is a filtration device with an inorganic membrane as a core, and is also a core device of a brine purification process. During refining, raw salt is prepared into crude brine, and the crude brine is filtered into refined brine through an inorganic membrane filter, so that the operation state of the inorganic membrane filter directly influences the brine refining effect, and one inorganic membrane filter usually comprises a plurality of inorganic membrane components; each inorganic membrane module is composed of 1, 3, 7, 19, 37 or more inorganic membrane tubes.
In the existing inorganic membrane component, a plurality of inorganic membrane tubes are usually fixed on a positioning flower disc, but the joints of the inorganic membrane tubes and the positioning flower disc are generally provided with grooves, and raw salt used for brine refining has more mechanical impurities and floccules, which are easily accumulated in the grooves at the ends of the inorganic membrane tubes, thus easily causing the blockage of the inorganic membrane component, the flux reduction and the influence on the filtering capacity.
Floes are also difficult to remove if cleaned by conventional chemical or physical methods. The floccules do not react with chemical agents during chemical cleaning, and the cleaning effect cannot be achieved; the floccules are condensed together and cannot be dispersed during physical backflushing, so that the inorganic membrane component needs to be frequently detached and cleaned to recover the flux of the inorganic membrane component.
However, the inorganic membrane tube is usually made of ceramic, so that the mechanical resistance is poor, the inorganic membrane tube is easy to break due to mechanical damage in the frequent disassembly and inspection process, once the inorganic membrane tube breaks or cracks, the inorganic membrane assembly is not complete, the quality and the yield of the product are seriously influenced, the use amount of spare parts is increased, and the economic burden is increased.
Disclosure of Invention
The invention aims to provide an inorganic membrane component to solve the problems that the inorganic membrane component in the prior art is easy to block due to floccules, ineffective in cleaning and easy to break due to frequent disassembly and inspection.
In order to achieve the above purpose, the invention provides the following technical scheme: an inorganic membrane assembly comprises at least one inorganic membrane tube, a sealing ring correspondingly communicated with the inorganic membrane tube, and a positioning flower disc for fixing the sealing ring, wherein one end of the sealing ring is sleeved on the inorganic membrane tube, and the other end of the sealing ring is not lower than the surface of the positioning flower disc.
Further, the sealing ring comprises a ring body, a first end and a second end, wherein the first end and the second end are arranged at two ends of the ring body in an opposite mode, the ring body is communicated with the inorganic membrane tube, the first end is larger than the diameter of the second end, and the first end is sleeved on the inorganic membrane tube.
Further, the first end is provided with a bulge extending from the ring body to the direction far away from the second end, and the bulge is sleeved on the inorganic membrane tube.
Further, the protrusion is ring-shaped.
Further, the inorganic membrane assembly also comprises a gasket arranged on the surface, close to the positioning flower disc, of the protrusion, and the positioning flower disc is in abutting seal with the gasket.
Furthermore, a disc chuck opening is formed in the positioning disc chuck, and the inner surface of the disc chuck opening is attached to the outer surface of the second end.
Further, the ring body is provided with a ring body through hole penetrating through the ring body, the inorganic membrane tube is provided with membrane tube through holes, and the ring body through holes correspond to the membrane tube through holes one to one.
Furthermore, the sealing ring is made of polytetrafluoroethylene.
Further, the inorganic membrane tube is of a single-tube type or a multi-channel type.
The present invention also provides an inorganic membrane filter comprising at least one inorganic membrane module according to any one of the above.
Compared with the prior art, the inorganic membrane component and the inorganic membrane filter provided by the invention have the following advantages:
according to the inorganic membrane component provided by the invention, the sealing ring is arranged between the inorganic membrane tube and the positioning flower disc, the sealing ring changes the groove between the existing positioning flower disc and the inorganic membrane tube into a convex surface, mechanical impurities or floccules are not easy to accumulate, a small amount of mechanical impurities or floccules can be removed through physical cleaning, the flux of the inorganic membrane component is ensured, the disassembly and inspection frequency of the inorganic membrane component is also reduced, the production efficiency is effectively improved, the breakage of the inorganic membrane tube can be reduced, and the production cost is further reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. In the drawings:
FIG. 1 is a schematic structural diagram of an inorganic membrane module according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of the inorganic membrane module shown in FIG. 1;
FIG. 3 is a schematic structural diagram of a sealing ring in the inorganic membrane module shown in FIG. 1;
FIG. 4 is a top view of the inorganic membrane module shown in FIG. 1;
FIG. 5 is a schematic structural diagram of an inorganic membrane module according to another preferred embodiment of the present invention;
fig. 6 is an enlarged view of a portion B of the inorganic membrane module shown in fig. 5.
Reference numerals:
1-inorganic membrane tube, 2-sealing ring,
21-ring body, 211-ring body through hole,
22-a first end, 221-a protrusion,
23-a second end, 3-a positioning faceplate,
31-disc opening, 4-gasket.
Detailed Description
The present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific examples described in the following embodiments of the present invention are merely illustrative of specific embodiments of the present invention and do not limit the scope of the invention.
The invention is further described with reference to the following figures and detailed description of embodiments.
As shown in fig. 1 and fig. 2, wherein fig. 1 is a schematic structural diagram of an inorganic membrane module according to a preferred embodiment of the present invention; fig. 2 is an enlarged view of a portion a of the inorganic membrane module shown in fig. 1.
The embodiment is an inorganic membrane assembly, which includes at least one inorganic membrane tube 1, a sealing ring 2 correspondingly communicated with the inorganic membrane tube 1, and a positioning faceplate 3 for fixing the sealing ring 2, wherein one end of the sealing ring 2 is sleeved on the inorganic membrane tube 1, and the other end is not lower than the surface of the positioning faceplate 3.
According to the inorganic membrane component provided by the invention, the sealing ring 2 is arranged between the inorganic membrane tube 1 and the positioning flower disc 3, the sealing ring 2 changes the groove at the connecting part of the existing positioning flower disc and the inorganic membrane tube into a convex surface, mechanical impurities or floccules are not easy to accumulate, a small amount of mechanical impurities or floccules can be removed through physical cleaning, the flux of the inorganic membrane component is ensured, the disassembly and inspection frequency of the inorganic membrane component is also reduced, the production efficiency is effectively improved, the breakage of the inorganic membrane tube can be reduced, and the production cost is further reduced.
The inorganic membrane tube 1 is provided with a plurality of membrane tube through holes which are uniformly distributed, raw material liquid flows in the inorganic membrane tube 1, clarified penetrating fluid containing small molecular components penetrates through the membrane outwards along the direction vertical to the clarified penetrating fluid under the driving of pressure, and turbid concentrated solution containing large molecular components is intercepted by the membrane, so that the purposes of separating, concentrating and purifying the fluid are achieved.
The number of the inorganic membrane tubes 1 can be 1 or multiple, the number of the inorganic membrane tubes 1 is determined according to the actual production condition, and the number and the positions of the inorganic membrane tubes 1 and the sealing rings 2 are in one-to-one correspondence.
Further, the inorganic membrane tube 1 is a single-tube type or a multi-channel type, and can be determined according to production conditions.
As shown in fig. 3, fig. 3 is a schematic structural diagram of a sealing ring in the inorganic membrane module shown in fig. 1.
Further, the sealing ring 2 includes a ring body 21, and a first end 22 and a second end 23 which are oppositely disposed at two ends of the ring body 21, the ring body 21 is communicated with the inorganic membrane tube 1, the first end 22 is larger than the diameter of the second end 23, and the first end 22 is sleeved on the inorganic membrane tube 1.
The diameter of the first end 22 is larger than that of the second end 23, so that the two ends of the sealing ring 2 are respectively and fixedly connected with the inorganic film tube 1 and the positioning flower disc 3.
Further, the ring body 21 is provided with a ring body through hole 211 penetrating through the ring body 21, the ring body 21 and the inorganic membrane tube 1 are of a columnar structure with the same diameter, the ring body through hole 211 corresponds to the membrane tube through hole one to one, and when crude brine flows through the inorganic membrane tube 1 for filtration, the ring body through hole 211 corresponds to the membrane tube through hole one to one, so that the existence of the sealing ring 2 does not affect the flux of the inorganic membrane tube 1, and the stability of the filtration capacity is ensured.
As shown in fig. 3, a protrusion 221 extending from the ring body 21 in a direction away from the second end 23 is further disposed at the first end 22, and the protrusion 221 is sleeved on the inorganic membrane tube 1. The socket joint means that: the diameter of the protrusion 221 is larger than that of the inorganic membrane tube 1, and when the membrane tube through hole of the inorganic membrane tube 1 is aligned with the ring body through hole 211 of the ring body 21, the inner surface of the protrusion 221 is attached to the outer surface of the inorganic membrane tube 1, so that connection is facilitated.
Further, the protrusion 221 is annular, and the upper surface and the lower surface of the protrusion are flat, but in other embodiments, the upper surface and the lower surface of the protrusion 221 may have other shapes; the number of the protrusions 221 may be plural and may be arranged at intervals.
The second end 23 is not lower than the surface of the positioning faceplate 3, that is, the second end 23 may be flush with the surface of the positioning faceplate 3 or higher than the surface of the positioning faceplate 3, and of course, if the second end 23 is too high relative to the surface of the positioning faceplate 3, the operation and capacity of the inorganic membrane module may be affected, so the length of the second end 23 is designed accordingly according to the operation condition of the inorganic membrane module.
The sealing ring 2 is arranged, the second end 23 is not lower than the surface of the positioning flower disc 3, namely, a groove in the existing inorganic membrane component is changed into a parallel or convex shape, floccules or mechanical impurities in the original salt are not easy to accumulate, even a small amount of floccules are accumulated, the floccules are easy to wash away during physical backflushing, the flux of the inorganic membrane tube 1 can be recovered, manual treatment is not required to be performed through disassembly and inspection, the times of manual disassembly and inspection are reduced, the fracture loss of the inorganic membrane tube 1 is reduced, and the production cost is saved.
Furthermore, the material of the sealing ring 2 is polytetrafluoroethylene. In this embodiment, the raw material solution is crude brine, which is highly corrosive, and the seal ring 2 should be made of a corrosion-resistant material, and polytetrafluoroethylene is resistant to acid, alkali, various organic solvents, and high temperature, is insoluble in almost all solvents, and has good performance.
As shown in fig. 4, fig. 4 is a plan view of the inorganic membrane module shown in fig. 1.
The positioning faceplate 3 is provided with a faceplate opening 31, the faceplate opening 31 corresponds to the position of the sealing ring 2, and in fig. 4, the sealing ring 2 at a part of the faceplate opening 31 is not shown for the sake of clarity of showing the structure of the faceplate opening 31.
The parameters such as the size and the shape of the flower disc open pore 31 are determined according to the size and the shape of the sealing ring 2, and the size and the shape of the sealing ring 2 are determined by the membrane tube configuration and the number of the filling of the inorganic membrane tube 1; the positioning flower disc 3 can be made of various materials such as PVC, ABS resin, polytetrafluoroethylene, rubber and the like.
When fixed, the inner surface of the faceplate opening 31 is attached to the outer surface of the second end 23 to ensure sealing.
The positioning flower disc 3 can also be provided with a bolt structure, and the inorganic membrane component is connected with other structures through the bolt structure.
As shown in fig. 5 and fig. 6, wherein fig. 5 is a schematic structural diagram of an inorganic membrane module according to another preferred embodiment of the present invention; fig. 6 is an enlarged view of a portion B of the inorganic membrane module shown in fig. 5.
Further, the inorganic membrane module further comprises a gasket 4 arranged on the surface of the protrusion 221 close to the positioning flower disc 3, the positioning flower disc 3 is in abutting seal with the gasket 4, and the gasket 4 provides buffer between the sealing ring 2 and the positioning flower disc 3, so that the sealing ring can be pressed more tightly during fixing, and the sealing performance is improved.
Further, the gasket 4 is a rubber gasket.
The invention also provides an inorganic membrane filter, which at least comprises one inorganic membrane component.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim.
Claims (8)
1. An inorganic membrane component is characterized by comprising at least one inorganic membrane tube (1), a sealing ring (2) correspondingly communicated with the inorganic membrane tube (1), and a positioning flower disc (3) for fixing the sealing ring (2), wherein one end of the sealing ring (2) is sleeved on the inorganic membrane tube (1), and the other end of the sealing ring is higher than the surface of the positioning flower disc (3);
the sealing ring (2) comprises a ring body (21), and a first end (22) and a second end (23) which are oppositely arranged at two ends of the ring body (21), the ring body (21) is communicated with the inorganic membrane tube (1), the first end (22) is larger than the diameter of the second end (23), and the first end (22) is sleeved on the inorganic membrane tube (1);
the ring body (21) with inorganic membrane tube (1) diameter is the same, ring body (21) are equipped with and run through ring body through-hole (211) of ring body (21), inorganic membrane tube (1) is equipped with the membrane tube through-hole, ring body through-hole (211) with the membrane tube through-hole one-to-one.
2. The inorganic membrane module according to claim 1, wherein the first end (22) is provided with a protrusion (221) extending from the ring body (21) in a direction away from the second end (23), and the protrusion (221) is sleeved on the inorganic membrane tube (1).
3. An inorganic membrane module according to claim 2, characterized in that said protrusions (221) are ring-shaped.
4. The inorganic membrane module according to claim 2, further comprising a gasket (4) disposed on a surface of the protrusion (221) near the positioning faceplate (3), wherein the positioning faceplate (3) abuts against the gasket (4).
5. The inorganic membrane module according to claim 1, wherein the positioning faceplate (3) is provided with a faceplate opening (31), and an inner surface of the faceplate opening (31) is attached to an outer surface of the second end (23).
6. The inorganic membrane module according to claim 1, wherein the material of the sealing ring (2) is polytetrafluoroethylene.
7. The inorganic membrane module according to claim 1, wherein the inorganic membrane tubes (1) are of a single-tube type or a multi-channel type.
8. An inorganic membrane filter comprising at least one inorganic membrane module according to any one of the preceding claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111506.2A CN109847589B (en) | 2019-02-12 | 2019-02-12 | Inorganic membrane component and inorganic membrane filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111506.2A CN109847589B (en) | 2019-02-12 | 2019-02-12 | Inorganic membrane component and inorganic membrane filter |
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| Publication Number | Publication Date |
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| CN109847589A CN109847589A (en) | 2019-06-07 |
| CN109847589B true CN109847589B (en) | 2021-07-23 |
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| GB1521287A (en) * | 1974-08-30 | 1978-08-16 | Wafilin Bv | Membrane filtration apparatus |
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|---|---|---|---|---|
| GB1521287A (en) * | 1974-08-30 | 1978-08-16 | Wafilin Bv | Membrane filtration apparatus |
| CN201008768Y (en) * | 2007-02-08 | 2008-01-23 | 江苏省宜兴非金属化工机械厂 | Inorganic film ceramic pipe enclosed filter |
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| CN109847589A (en) | 2019-06-07 |
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Application publication date: 20190607 Assignee: Qinghai Salt Lake Magnesium Industry Co.,Ltd. Assignor: QINGHAI SALT LAKE INDUSTRY Co.,Ltd. Contract record no.: X2023990000996 Denomination of invention: An inorganic membrane component and inorganic membrane filter Granted publication date: 20210723 License type: Exclusive License Record date: 20240102 |
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