CN219997361U - High-temperature-resistant monitoring optical fiber - Google Patents
High-temperature-resistant monitoring optical fiber Download PDFInfo
- Publication number
- CN219997361U CN219997361U CN202320857234.2U CN202320857234U CN219997361U CN 219997361 U CN219997361 U CN 219997361U CN 202320857234 U CN202320857234 U CN 202320857234U CN 219997361 U CN219997361 U CN 219997361U
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- Prior art keywords
- high temperature
- temperature resistant
- layer
- optical fiber
- resistant
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 51
- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 239000010410 layer Substances 0.000 claims abstract description 50
- 239000011247 coating layer Substances 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 239000000835 fiber Substances 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 6
- 229920002379 silicone rubber Polymers 0.000 claims description 6
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims 1
- 239000002674 ointment Substances 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000004917 carbon fiber Substances 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- 238000012856 packing Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- -1 acrylic ester Chemical class 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229910000926 A-3 tool steel Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920006253 high performance fiber Polymers 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a high-temperature-resistant monitoring optical fiber which comprises a bare optical fiber, a high-temperature-resistant coating layer, an optical fiber filling ointment layer, a compression-resistant sealing layer, a waterproof layer, a heat-resistant net and a high-temperature-resistant protective sleeve, wherein the high-temperature-resistant coating layer is coated on the outer wall of the bare optical fiber, the compression-resistant sealing layer is wrapped on the high-temperature-resistant coating layer, an annular filling gap exists between the high-temperature-resistant coating layer and the bare optical fiber, the optical fiber filling ointment layer is filled in the annular filling gap, the waterproof layer is wrapped on the outer wall of the compression-resistant sealing layer, the heat-resistant net is wrapped on the waterproof layer, and the high-temperature-resistant protective sleeve is wrapped on the heat-resistant net. The utility model has the advantages of extremely high sensitivity and precision, inherent safety, electromagnetic interference resistance, high insulating strength, corrosion resistance, integration of sensing and transmission, compatibility with a digital communication system and the like.
Description
Technical Field
The utility model relates to the technical field of optical fibers, in particular to a high-temperature-resistant monitoring optical fiber.
Background
The optical fiber is a short-term optical fiber, which is a fiber made of glass or plastic and can be used as a light transmission tool. The transmission principle is "total reflection of light", and a tiny optical fiber is enclosed in a plastic sheath so that it can be bent without breaking. Typically, a transmitting device at one end of the optical fiber uses a light emitting diode or a laser to transmit pulses of light to the optical fiber, and a receiving device at the other end of the optical fiber uses a photosensitive element to detect the pulses. In everyday life, optical fibers are used for long distance information transmission because the conduction loss of light in optical fibers is much lower than that of electricity in wires.
With the continuous development of optical fiber technology, optical fibers are widely used in fields other than the telecommunications industry, such as military, electric power, engineering monitoring (sensing), petrochemical industry, and medicine. Especially in some special fields, optical fibers are increasingly valued and favored because of the advantages of large information transmission quantity, strong electromagnetic interference resistance and the like.
Modern and informationized optical fibers are required by various industries nowadays, and general optical fibers are sheathed by PE plastic, and the materials are conventional engineering materials, have rich sources, can meet the requirement of mass production and have relatively low cost. However, for special industries such as petrochemical industry, steel industry, aerospace industry, boilers and other industries related to heat and high temperature, optical fibers capable of withstanding higher temperatures are required, and ordinary optical fibers obviously cannot be used.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a high-temperature-resistant monitoring optical fiber.
The aim of the utility model is achieved by the following technical scheme: the utility model provides a high temperature resistant monitoring optical fiber, includes bare fiber, high temperature resistant coating layer, optic fibre packing oleamen layer, resistance to compression sealing layer, waterproof layer, heat-resisting net and high temperature resistant protective sheath, high temperature resistant coating layer coat in the outer wall of bare fiber, resistance to compression sealing layer around package in high temperature resistant coating layer, high temperature resistant coating layer with there is annular packing clearance between the bare fiber, optic fibre packing oleamen layer pack in annular packing clearance, the waterproof layer around package in the outer wall of resistance to compression sealing layer, resistance to heat the net around package in the waterproof layer, resistance to heat the high temperature protective sheath around package in resistance to heat the net.
More preferably, the high-temperature resistant coating layer is made of acrylic resin.
More preferably, the thickness range of the high temperature resistant coating layer comprises 180-200 um.
Preferably, the waterproof layer is formed by compounding acrylic ester, single-component polyurethane and hollow glass beads.
More preferably, the bearing temperature of the high-temperature resistant coating layer comprises 80-150 ℃.
More preferably, the pressure-resistant sealing layer is a seamless metal pipe, and the pressure resistance of the seamless metal pipe is more than 1.6Mpa.
More preferably, the pressure-resistant sealing layer has a bearing temperature range of-20 ℃ to 425 ℃.
More preferably, the heat-resistant net has a bearing temperature of more than 1000 ℃.
More preferably, the bearing temperature of the high-temperature resistant protective sleeve is more than 200 ℃.
More preferably, the high-temperature resistant protective sleeve is made of silicon rubber.
Compared with the prior art, the utility model has the following advantages:
the utility model has the advantages of extremely high sensitivity and precision, inherent good safety, electromagnetic interference resistance, high insulating strength, corrosion resistance, integration of sensing and transmission, compatibility with a digital communication system and the like through the bare optical fiber, the high temperature resistant coating layer, the optical fiber filling ointment layer, the compression resistant sealing layer, the waterproof layer, the heat resistant net and the high temperature resistant protective sleeve.
Drawings
FIG. 1 is a cross-sectional view of a high temperature resistant monitoring fiber of the present utility model;
FIG. 2 is a side view of a high temperature resistant monitoring fiber according to the present utility model;
the reference numerals for the various parts in the drawings: 1-a high-temperature resistant protective sleeve; 2-heat resistant net; 3-a waterproof layer; 4-a pressure-resistant sealing layer; 5-a high temperature resistant coating layer; 6-filling an ointment layer with optical fibers; 7-bare optical fiber.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and specific examples, which are not to be construed as limiting the embodiments of the present utility model.
As shown in fig. 1 and 2, a high temperature resistant monitoring optical fiber comprises a bare optical fiber 7, a high temperature resistant coating layer 5, an optical fiber filling ointment layer 6, a compression resistant sealing layer 4, a waterproof layer 3, a heat resistant net 2 and a high temperature resistant protective sleeve 1, wherein the high temperature resistant coating layer 5 is coated on the outer wall of the bare optical fiber 7, the high temperature resistant coating layer 5 is coated on the compression resistant sealing layer 4, an annular filling gap exists between the high temperature resistant coating layer 5 and the bare optical fiber 7, the optical fiber filling ointment layer 6 is uniformly filled in the annular filling gap, the outer wall of the compression resistant sealing layer 4 is coated in the inner cavity of the waterproof layer 3, the outer wall of the waterproof layer 3 is coated on the inner wall of the heat resistant net 2, and the outer wall of the heat resistant net 2 is coated in the high temperature resistant protective sleeve 1.
The high temperature resistant coating layer 5 is used for protecting the bare optical fiber 7 and improving the effect of the optical fiber on resisting external force. The high-temperature resistant coating layer 5 is made of acrylic resin, has the thickness range of 180-200 mu m, high production efficiency, stable performance and smaller volume, and is used for producing small devices. The bearing temperature of the high temperature resistant coating layer 5 comprises 80 ℃ to +150 ℃.
The viscosity of the optical fiber filling ointment layer 6 is uniform, the thixotropic property is strong, and the optical fiber filling ointment layer can be filled at normal temperature; not hard and not brittle; low temperature resistance and long-term stability. The fiber optic filling ointment layer 6 should be homogeneous, water-resistant, and free of dust, metal particles, and other impurities. The optical fiber filling ointment layer 6 consists of silicone grease, an antioxidant, a viscosity regulator, a dehydrogenation agent, an inorganic filler and the like, wherein the silicone grease can be kept in a grease state when in use for a long time at the temperature of-50 ℃ to +230 ℃, and a seamless metal tube is filled, so that the optical fiber filling ointment layer can further bear high-temperature corrosion and protect the normal transmission of the bare optical fiber 7.
The compression-resistant sealing layer 4 is a seamless metal pipe, in particular a seamless steel pipe, and has the advantages of water resistance, moisture resistance, mouse bite resistance and rust resistance; and has good air-blowing installation performance, and the bearing temperature range comprises-20 ℃ to 425 ℃. The seamless steel pipe has the pressure resistance of more than 1.6Mpa, good street collecting performance, and can bear larger tensile force and super-strong lateral pressure.
The waterproof layer 3 is formed by compounding acrylic ester, single-component polyurethane and hollow glass beads. After coating, a high-strength tough waterproof coating film is formed, thereby improving the waterproof property of the optical fiber. And the optical fiber is prevented from being infiltrated by water molecules generated in a high-temperature environment, so that the information transmission of the optical fiber is affected.
The heat resistant net 2 is a woven net of carbon fibers which can withstand temperatures greater than 1000 ℃. The carbon fiber woven net is formed by converting organic fibers through a series of heat treatment, is an inorganic high-performance fiber with carbon content higher than 90%, is a new material with excellent mechanical properties, has the inherent characteristics of carbon materials, has the soft processability of textile fibers, and is a new generation of reinforcing fiber. The comprehensive indexes of the specific strength and the specific modulus of the carbon fiber woven net are highest in the existing structural materials. In the fields with strict requirements on density, rigidity, weight, fatigue property and the like, the carbon fiber woven net has advantages in the fields with high requirements on high temperature and high chemical stability. Increase inMechanical properties of the optical fiber. The specific gravity of the carbon fiber is less than 1/4 of that of the steel, and is generally more than 3500Mpa, the strength is 7-9 times that of the steel, and the tensile elastic modulus is 23000-43000 Mpa and is higher than that of the steel. Therefore, the specific strength of the carbon fiber woven net, namely the ratio of the strength of the material to the density thereof, can reach 2000 Mpa/(g/cm) 3 ) The specific strength of the A3 steel is only 59 Mpa/(g/cm) 3 ) Left and right.
The high temperature resistant protective sleeve 1 is made of silicon rubber. The silicon rubber is characterized by high-temperature stability, and the strength of the silicon rubber is only half of that of natural rubber or certain synthetic rubber at normal temperature, but the silicon rubber can still keep certain flexibility, rebound resilience and surface hardness at high temperature above 200 ℃, and the mechanical property is not changed obviously.
The above embodiments are preferred examples of the present utility model, and the present utility model is not limited thereto, and any other modifications or equivalent substitutions made without departing from the technical aspects of the present utility model are included in the scope of the present utility model.
Claims (9)
1. The utility model provides a high temperature resistant monitoring optical fiber, its characterized in that includes bare fiber, high temperature resistant coating layer, optical fiber filling oleamen layer, resistance to compression sealing layer, waterproof layer, heat-resisting net and high temperature resistant protective sheath, high temperature resistant coating layer coat in the outer wall of bare fiber, resistance to compression sealing layer around package in high temperature resistant coating layer, high temperature resistant coating layer with there is annular filling clearance between the bare fiber, optical fiber filling oleamen layer fill in annular filling clearance, the waterproof layer around package in the outer wall of resistance to compression sealing layer, resistance to heat net around package in the waterproof layer, resistance to heat protective sheath around package in resistance to heat net.
2. The high temperature resistant monitoring fiber according to claim 1, wherein the high temperature resistant coating layer is made of acrylic resin.
3. The high temperature resistant monitoring fiber according to claim 1, wherein the thickness of the high temperature resistant coating layer is in the range of 180-200 um.
4. The high temperature resistant monitoring fiber according to claim 1, wherein the high temperature resistant coating layer has a temperature of 80 ℃ to 150 ℃.
5. The high temperature resistant monitoring fiber according to claim 1, wherein the pressure resistant sealing layer is a seamless metal tube, and the pressure resistance of the seamless metal tube is greater than 1.6Mpa.
6. The high temperature resistant monitoring fiber according to claim 1, wherein the pressure resistant sealing layer has a bearing temperature range of-20 ℃ to 425 ℃.
7. The high temperature resistant monitoring fiber according to claim 1, wherein the heat resistant net has a withstand temperature of greater than 1000 ℃.
8. The high temperature resistant monitoring fiber according to claim 1, wherein the high temperature resistant protective jacket has a temperature of greater than 200 ℃.
9. The high temperature resistant monitoring fiber according to claim 1, wherein the high temperature resistant protective sheath is made of silicone rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320857234.2U CN219997361U (en) | 2023-04-17 | 2023-04-17 | High-temperature-resistant monitoring optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320857234.2U CN219997361U (en) | 2023-04-17 | 2023-04-17 | High-temperature-resistant monitoring optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219997361U true CN219997361U (en) | 2023-11-10 |
Family
ID=88615589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320857234.2U Active CN219997361U (en) | 2023-04-17 | 2023-04-17 | High-temperature-resistant monitoring optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219997361U (en) |
-
2023
- 2023-04-17 CN CN202320857234.2U patent/CN219997361U/en active Active
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