CN220990269U - Helium separation membrane component with self-protection function - Google Patents
Helium separation membrane component with self-protection function Download PDFInfo
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- CN220990269U CN220990269U CN202420801944.8U CN202420801944U CN220990269U CN 220990269 U CN220990269 U CN 220990269U CN 202420801944 U CN202420801944 U CN 202420801944U CN 220990269 U CN220990269 U CN 220990269U
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- Prior art keywords
- tube
- valve
- shell
- self
- separation membrane
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- 239000012528 membrane Substances 0.000 title claims abstract description 52
- 239000001307 helium Substances 0.000 title claims abstract description 36
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 36
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000000926 separation method Methods 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 239000012510 hollow fiber Substances 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 210000001503 joint Anatomy 0.000 claims description 24
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 14
- 238000005260 corrosion Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 239000003345 natural gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003568 thioethers Chemical class 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to the technical field of separation membranes and discloses a helium separation membrane assembly with self-protection, which comprises a shell, wherein an air inlet pipe and an air outlet pipe are communicated with the upper surface of the shell, one end of the shell is fixedly provided with a central pipe in a penetrating manner, a hollow fiber membrane is sleeved on the central pipe, the hollow fiber membrane is positioned in the shell, an anti-corrosion layer is arranged on the inner wall of the shell, sealing rings are arranged at the connecting positions of the central pipe and the shell, and the sealing rings are sleeved on the central pipe and are attached to the anti-corrosion layer. The gas medium is isolated from the inner wall of the shell through the anti-corrosion layer, and the connecting position of the shell and the central tube is protected by the sealing ring, so that the problem that the shell is corroded by the highly corrosive medium or other harmful substances from the gap is avoided, and the service life of the shell is prolonged.
Description
Technical Field
The utility model relates to the technical field of separation membranes, in particular to a helium separation membrane component with self-protection function.
Background
Helium is a national strategic resource, is a pulse of national defense and military industry, and is separated and extracted from natural gas and other gas sources to be a main production source of helium. Since the helium concentration in natural gas is generally not high, multistage helium concentration by a membrane method is a relatively economical method. The helium separation membrane component is a core tool for helium separation, is a selective permeable membrane with helium preferential permeation, and can separate helium from raw gas, so that the purpose of gas mixture separation is realized, and the helium separation membrane component is widely applied to processes such as natural gas helium stripping, coal bed gas helium stripping or site helium stripping.
Most natural gas contains a certain amount of sulfide, so that the natural gas has certain corrosiveness to the membrane assembly structure. In the prior art, a central tube of the helium separation membrane assembly penetrates through the surface of a shell in the production process, a gap exists between the central tube and the shell, and when high-corrosion media such as sulfides in the shell or other harmful substances contact, the shell is easily corroded, so that the service life of the shell is influenced.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, and provides a helium separation membrane component with self-protection function, which is used for solving the problem that high corrosive media such as sulfides and other harmful substances can erode a shell.
The aim of the utility model is realized by the following technical scheme: the utility model provides a take helium separation membrane module of self-protection, includes the casing, the upper surface intercommunication of casing is provided with intake pipe and blast pipe, the fixed center tube that wears to be equipped with of one end of casing, the cover is equipped with hollow fiber membrane on the center tube, hollow fiber membrane is located in the casing, the inner wall of casing is provided with the anticorrosive coating, the hookup location of center tube and casing all is provided with the sealing washer, the sealing washer suit is in on the center tube, and laminating the anticorrosive coating.
In some embodiments, the inner walls at two ends of the shell are provided with opposite interfaces, the sealing ring is assembled in the opposite interfaces in an interference manner, and the inner wall of the sealing ring is tightly attached to the outer wall of the central tube.
In some embodiments, the hollow fiber membrane is a polyimide membrane material.
In some embodiments, the side wall of the central tube is provided with a plurality of air inlets along the axial direction of the side wall, and the length of the central tube in the shell is greater than the length of the hollow fiber membrane.
In some embodiments, a butt joint pipe is connected to the top of the central pipe, and an adjusting valve is arranged on the butt joint pipe.
In some embodiments, the regulating valve comprises a hollow ring, a valve tube and a valve rod, wherein the hollow ring is fixedly sleeved on the butt joint tube, one end of the valve tube is fixedly connected to the side wall of the hollow ring, the valve rod is coaxially arranged in the valve tube in a penetrating manner, and the valve rod moves along the radial direction of the butt joint tube.
In some embodiments, the inner wall of the butt joint pipe is symmetrically provided with a valve groove, the valve rod passes through the valve groove, and the top wall of the valve rod contacts the inner top wall of the valve groove.
In some embodiments, the valve pipe is provided with a sealing hole and a threaded hole in sequence along the direction close to the hollow ring, the threaded hole is internally threaded and is adapted with a threaded rod, one end of the threaded rod is rotationally connected with the valve rod, the other end of the threaded rod movably penetrates through the sealing hole and is connected with a hand wheel, an annular sealing gasket is arranged in the sealing hole, and the annular sealing gasket is in interference fit with the threaded rod.
In some embodiments, the upper surface of the housing has a pressure transmitter mounted thereon.
The beneficial effects of the utility model are as follows:
1. The gas medium is isolated from the inner wall of the shell through the anti-corrosion layer, and the connecting position of the shell and the central tube is protected by the sealing ring, so that the problem that the shell is corroded by the highly corrosive medium or other harmful substances from the gap is avoided, and the service life of the shell is prolonged.
2. Typically, the regulator valve is fully open so that the osmotic pressure is at a minimum to achieve a maximum pressure differential, but in certain specific situations, when the flow rate of feed gas needs to be controlled, the hollow fiber membrane is prevented from being damaged due to too fast flow rate by the cooperation of the butt joint tube, the regulator valve and the pressure transmitter.
Drawings
FIG. 1 is a schematic illustration of a helium separation membrane module with self-protection according to the present utility model;
FIG. 2 is a schematic diagram of a helium separation membrane module with self-protection according to a second embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of an anticorrosive coating of a helium separation membrane module with self-protection according to the present utility model;
FIG. 4 is a schematic cross-sectional view of a seal ring in a helium separation membrane module with self-protection according to the present utility model;
FIG. 5 is a schematic view showing the internal structure of a butt joint pipe in a helium separation membrane module with self-protection according to the present utility model;
in the figure, 1-shell, 2-air inlet pipe, 3-exhaust pipe, 4-central pipe, 5-hollow fiber membrane, 6-sealing ring, 7-anticorrosive layer, 8-interface, 9-interface pipe, 10-regulating valve, 11-pressure transmitter, 12-valve pipe, 13-valve rod, 14-valve groove, 15-sealing hole, 16-threaded hole, 17-threaded rod, 18-hand wheel, 19-annular sealing gasket and 20-hollow ring.
Detailed Description
The technical solution of the present utility model will be described in further detail with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following description.
As shown in fig. 1 to 5, a helium separation membrane assembly with self-protection comprises a shell 1, the upper surface of the shell 1 is communicated with an air inlet pipe 2 and an exhaust pipe 3, a central pipe 4 is fixedly arranged at one end of the shell 1 in a penetrating mode, a hollow fiber membrane 5 is sleeved on the central pipe 4, the hollow fiber membrane 5 is positioned in the shell 1, an anti-corrosion layer 7 is arranged on the inner wall of the shell 1, sealing rings 6 are sleeved on the central pipe 4 and are attached to the anti-corrosion layer 7, a gas medium is isolated from the inner wall of the shell 1 through the anti-corrosion layer 7, meanwhile, the connecting positions of the shell 1 and the central pipe 4 are protected by being matched with the sealing rings 6, the situation that the inner wall of the shell 1 is comprehensively protected is achieved, and the problem that highly-corrosive mediums or other harmful substances are in contact with and erode the shell from gaps is effectively avoided, so that the service life of the shell 1 is prolonged.
In some embodiments, as shown in fig. 1 to 3, the hollow fiber membrane 5 is made of polyimide membrane material, so that helium can be conveniently separated from raw gas, the side wall of the central tube 4 is provided with a plurality of air inlets along the axial direction of the side wall, the length of the central tube 4 in the shell 1 is greater than that of the hollow fiber membrane 5, a gas medium firstly enters the shell 1 through the air inlet pipe 2, the outer wall of the hollow fiber membrane 5 contacts the inner wall of the shell 1, so that the gas medium enters the central tube 4 through the hollow fiber membrane 5, and the separation of helium and raw gas is completed through the cooperation of the hollow fiber membrane 5 and the central tube 4.
In some embodiments, as shown in fig. 3 and fig. 4, the inner walls at two ends of the shell 1 are provided with the butt joint ports 8, the sealing rings 6 are assembled in the butt joint ports 8 in an interference manner, the inner walls of the sealing rings 6 are clung to the outer wall of the central tube 4, and secondly, the outer walls of the sealing rings 6 are clung to the inner walls of the butt joint ports 8 through the interference fit of the sealing rings 6, so that a high-strength sealing matching surface is formed, the connection position of the shell 1 and the central tube 4 is well protected, and the problem that highly corrosive media or other harmful substances contact and erode the shell from gaps is avoided.
In some embodiments, as shown in fig. 1, fig. 2 and fig. 5, the top of the central tube 4 is connected with a butt joint tube 9, a regulating valve 10 is arranged on the butt joint tube 9, the regulating valve 10 comprises a hollow ring 20, a valve tube 12 and a valve rod 13, the hollow ring 20 is fixedly sleeved on the butt joint tube 9, one end of the valve tube 12 is fixedly connected to the side wall of the hollow ring 20, the valve rod 13 coaxially penetrates through the valve tube 12, the valve rod 13 moves along the radial direction of the butt joint tube 9, the inner wall of the butt joint tube 9 is symmetrically provided with a valve slot 14, the valve rod 13 penetrates through the valve slot 14, the top wall of the valve rod 13 contacts with the inner top wall of the valve slot 14, the upper surface of the shell 1 is provided with a pressure transmitter 11, the flow rate of raw material gas is regulated by the movement of the valve rod 13, the width of the valve rod 13 is larger than the diameter of the inner hole of the butt joint tube 9, when one end of the valve rod 13 far away from the valve tube 12 is matched in the valve slot 14, thereby completely closing the inner hole of the butt joint tube 9, the purpose of cutting off the raw material flow is achieved, the top wall of the valve slot 14 is contacted with the top wall of the valve slot 14, good flow rate can be formed, the flow rate is prevented from damaging the hollow fiber membrane 5 by the flow rate regulator through the valve transmitter 10.
Further, as shown in fig. 5, the valve tube 12 is sequentially provided with a sealing hole 15 and a threaded hole 16 along the direction close to the hollow ring 20, the threaded hole 16 is internally and in threaded fit with a threaded rod 17, one end of the threaded rod 17 is rotationally connected with the valve rod 13, the other end movably passes through the sealing hole 15 and is connected with a hand wheel 18, an annular sealing gasket 19 is arranged in the sealing hole 15, the annular sealing gasket 19 is sleeved on the threaded rod 17 in an interference manner, the rotational freedom degree of the valve rod 13 is limited because the valve rod 13 is arranged in the valve groove 14 in a penetrating manner, the threaded rod 17 is rotationally connected with the valve rod 13, when the threaded rod 17 is screwed in or screwed out, the valve rod 13 is driven to linearly move, interference between the valve rod 13 and the threaded rod 17 is not caused, and a gap between the threaded rod 17 and the valve tube 12 is eliminated through the arrangement of the annular sealing gasket 19, so that the condition of raw gas leakage is avoided.
Claims (9)
1. The utility model provides a take helium separation membrane module of self-protection, includes casing (1), the upper surface intercommunication of casing (1) is provided with intake pipe (2) and blast pipe (3), its characterized in that, the fixed center tube (4) of wearing to be equipped with of one end of casing (1), the cover is hollow fiber membrane (5) on center tube (4), hollow fiber membrane (5) are located in casing (1), the inner wall of casing (1) is provided with anticorrosive coating (7), the hookup location of center tube (4) and casing (1) all is provided with sealing washer (6), sealing washer (6) suit is in on center tube (4), and laminating anticorrosive coating (7).
2. The helium separation membrane component with self-protection according to claim 1, wherein the inner walls of the two ends of the shell (1) are provided with butt joint ports (8), the sealing ring (6) is assembled in the butt joint ports (8) in an interference mode, and the inner wall of the sealing ring (6) is tightly attached to the outer wall of the central tube (4).
3. A helium separation membrane module with self-protection according to claim 1, wherein the hollow fiber membrane (5) is made of polyimide membrane material.
4. The helium separation membrane component with self-protection according to claim 1, wherein a plurality of air inlet holes are formed in the side wall of the central tube (4) along the axial direction of the central tube, and the length of the central tube (4) in the shell (1) is larger than the length of the hollow fiber membrane (5).
5. Helium separation membrane module with self-protection according to claim 1, characterized in that the top of the central tube (4) is connected with a butt joint tube (9), and the butt joint tube (9) is provided with a regulating valve (10).
6. The helium separation membrane assembly with self-protection according to claim 5, wherein the regulating valve (10) comprises a hollow ring (20), a valve tube (12) and a valve rod (13), the hollow ring (20) is fixedly sleeved on the butt joint tube (9), one end of the valve tube (12) is fixedly connected to the side wall of the hollow ring (20), the valve rod (13) is coaxially arranged in the valve tube (12) in a penetrating manner, and the valve rod (13) moves along the radial direction of the butt joint tube (9).
7. The helium separation membrane module with self-protection according to claim 6, wherein valve grooves (14) are symmetrically formed on the inner wall of the butt joint pipe (9), the valve rod (13) penetrates through the valve grooves (14), and the top wall of the valve rod (13) contacts with the inner top wall of the valve grooves (14).
8. The helium separation membrane assembly with self-protection according to claim 7, wherein the valve tube (12) is sequentially provided with a sealing hole (15) and a threaded hole (16) along the direction close to the hollow ring (20), a threaded rod (17) is adapted to the internal thread of the threaded hole (16), one end of the threaded rod (17) is rotationally connected with the valve rod (13), the other end of the threaded rod is movably connected with a hand wheel (18) through the sealing hole (15), an annular sealing gasket (19) is arranged in the sealing hole (15), and the annular sealing gasket (19) is in interference fit with the threaded rod (17).
9. A helium separation membrane assembly with self-protection according to claim 1, wherein the upper surface of the housing (1) is provided with a pressure transmitter (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420801944.8U CN220990269U (en) | 2024-04-18 | 2024-04-18 | Helium separation membrane component with self-protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420801944.8U CN220990269U (en) | 2024-04-18 | 2024-04-18 | Helium separation membrane component with self-protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220990269U true CN220990269U (en) | 2024-05-24 |
Family
ID=91121578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420801944.8U Active CN220990269U (en) | 2024-04-18 | 2024-04-18 | Helium separation membrane component with self-protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220990269U (en) |
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2024
- 2024-04-18 CN CN202420801944.8U patent/CN220990269U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240607 Address after: Room 02, 4th Floor, Unit 2, Building 3, No. 566 Jitai Road, High tech Zone, Chengdu City, Sichuan Province, 610000 Patentee after: Sichuan Xingqin Energy Technology Co.,Ltd. Country or region after: China Patentee after: Shandong Huihai Membrane Material Technology Co.,Ltd. Patentee after: SOUTHWEST BRANCH OF CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Address before: Room 106, 3rd Floor, Building 1, No. 99 Shuangbai East 1st Street, High tech Zone, Chengdu City, Sichuan Province, 611731 (self numbered) Patentee before: Sichuan Xingqin Energy Technology Co.,Ltd. Country or region before: China Patentee before: Shandong Huihai Membrane Material Technology Co.,Ltd. |