CN113835151A - Optical fiber hydrogen-carrying reaction system - Google Patents
Optical fiber hydrogen-carrying reaction system Download PDFInfo
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- CN113835151A CN113835151A CN202111036394.2A CN202111036394A CN113835151A CN 113835151 A CN113835151 A CN 113835151A CN 202111036394 A CN202111036394 A CN 202111036394A CN 113835151 A CN113835151 A CN 113835151A
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- Prior art keywords
- optical fiber
- pipeline
- hydrogen
- pressure
- outlet
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 60
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000001257 hydrogen Substances 0.000 claims abstract description 42
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 24
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 21
- 238000010926 purge Methods 0.000 claims abstract description 11
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims abstract 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 21
- 150000002431 hydrogen Chemical class 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 206010034972 Photosensitivity reaction Diseases 0.000 abstract description 4
- 230000036211 photosensitivity Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000012824 chemical production Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
- G02B6/02114—Refractive index modulation gratings, e.g. Bragg gratings characterised by enhanced photosensitivity characteristics of the fibre, e.g. hydrogen loading, heat treatment
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Pipeline Systems (AREA)
Abstract
An optical fiber hydrogen-carrying reaction system comprises a tubular reactor, a high-pressure hydrogen hydrogenation pipeline, a nitrogen purging pipeline, a vacuumizing pipeline and a controllable loop. The tubular reactor can increase the number of the optical fiber pressure-bearing pipes according to different output. The optical fiber pressure-bearing pipes of the tubular reactor are uniformly distributed in the pipe shell, and a first inlet and a first outlet are respectively arranged at two ends of each optical fiber pressure-bearing pipe; the shell is provided with a second inlet and a second outlet, and the temperature sensor is arranged at the outer end of the second outlet pipeline; the support supports the cartridge. The working pressure of the device can reach more than 16MPa, the temperature of the water bath (oil bath) belongs to automatic control, and manual regulation is not needed; hydrogenation, nitrogen sweep, evacuation all share a pipeline, convenient operation. The method not only can produce the required optical fiber, but also can be used as a special system for researching the photosensitivity of the optical fiber to research the photosensitivity of the optical fiber after hydrogenation under different pressures or different temperatures.
Description
Technical Field
The invention relates to the technical field of chemical production equipment and optical fiber and cable manufacturing, in particular to an optical fiber hydrogen-carrying reaction system.
Background
The optical fiber promotes hydrogen molecules to permeate into the optical fiber under the high-pressure hydrogen environment, so that the photosensitive property of the optical fiber is improved. The hydrogen carrying device in the prior art can realize hydrogen carrying treatment, but the whole hydrogen carrying system has complex flow, staggered and unsmooth interfaces and large occupied space, and can also greatly increase the manufacturing cost if the yield is to be improved, and the maintenance is difficult to carry out in later use; once the hydrogen is mixed with the air in the environment, explosion easily occurs, and potential safety hazards exist.
Disclosure of Invention
1. The purpose is as follows:
the invention aims to solve the technical defects of low yield and high maintenance cost, and provides an optical fiber hydrogen-carrying reaction system which has the advantages of few interfaces, simplicity in operation, low manufacturing cost and convenience in maintenance, the yield of hydrogen-carrying can be greatly improved, the later-period inspection and maintenance are convenient, and the risk of explosion caused by hydrogen gas leakage to the environment is avoided.
2. The technical scheme is as follows:
an optical fiber hydrogen-carrying reaction system comprises a tubular reactor, a high-pressure hydrogen hydrogenation pipeline, a nitrogen purging pipeline, a vacuumizing pipeline and a controllable loop.
The tubular reactor comprises an optical fiber pressure-bearing pipe, a pipe shell, a first inlet, a first outlet, a second inlet, a second outlet, a temperature sensor interface and a support; the optical fiber pressure-bearing pipes are uniformly distributed in the pipe shell, and a first inlet and a first outlet are respectively arranged at two ends of each optical fiber pressure-bearing pipe; the shell is provided with a second inlet and a second outlet, and the temperature sensor is arranged at the outer end of the second outlet pipeline; the support supports the cartridge.
The high-pressure hydrogen hydrogenation pipeline, the nitrogen purging pipeline and the vacuumizing pipeline share one pipeline.
The high-pressure hydrogen hydrogenation pipeline is connected with the first inlet through a pipeline, and the first outlet of the optical fiber pressure-bearing pipe on the tubular reactor reaches a designated position.
The first inlet gas comprises hydrogen or nitrogen, and the first outlet gas comprises hydrogen or nitrogen.
The second inlet is a water bath or oil bath liquid inlet, and the second outlet is a water bath or oil bath liquid outlet.
The water tank of the controllable loop is provided with a heating rod, a condensing coil and a temperature control cabinet.
The high-pressure hydrogenation pipeline can be matched with a pneumatic booster pump in a pipeline.
The number, the length and the diameter of the optical fiber pressure-bearing pipes can be adjusted according to actual working conditions.
The outside of the pipe shell can be additionally provided with a heat-insulating layer.
3. The effect is as follows:
the high-yield and simple-maintenance optical fiber hydrogen-carrying reaction system has working pressure up to more than 16MPa and water bath (oil bath) temperature set according to actual working temperature, such as 40 ℃, 60 ℃, 90 ℃ and the like. The optical fiber reacts in the tubular reactor for about half a month, and the whole system operates normally. The water bath (oil bath) temperature belongs to automatic control and does not need manual regulation; hydrogenation, nitrogen sweep, evacuation all share a pipeline, convenient operation. The method not only can produce the required optical fiber, but also can be used as a special system for researching the photosensitivity of the optical fiber to research the photosensitivity of the optical fiber after hydrogenation under different pressures or different temperatures.
Drawings
FIG. 1 schematic view of a tubular reactor
FIG. 2 schematic diagram of a reaction system for hydrogen-loaded with optical fiber
In the figure: 1. the device comprises an optical fiber pressure-bearing pipe, a pipe shell, a first inlet, a first outlet, a second inlet, a second outlet, a temperature sensor interface, a support, a high-pressure hydrogen hydrogenation pipeline, a nitrogen purging pipeline, a vacuum pumping pipeline, a controllable loop and a control loop, wherein the optical fiber pressure-bearing pipe comprises 2 the pipe shell, 3 the first inlet, 4 the first outlet, 5 the second inlet, 6 the second outlet, 7 the temperature sensor interface, 8 the support, 9 the high-pressure hydrogen hydrogenation pipeline, 10 the nitrogen purging pipeline, 11 the vacuum pumping pipeline and 12 the controllable loop.
Detailed Description
The invention will be further explained with reference to the accompanying drawings:
as shown in fig. 2, an optical fiber hydrogen-carrying reaction system comprises a tubular reactor, a high-pressure hydrogen hydrogenation pipeline 9, a nitrogen purging pipeline 10, a vacuum pumping pipeline 11, and a controllable loop 12.
As shown in fig. 1, the tubular reactor mainly comprises an optical fiber pressure-bearing pipe 1 and a pipe shell 2, wherein the optical fiber pressure-bearing pipe 1 is sealed by flanges at two ends of a single pipe with a diameter of 48 mm, and can bear the hydrogen pressure of 16 MPa; the optical fiber pressure-bearing pipes 1 are uniformly distributed in the pipe shell, a first inlet 3 and a first outlet 4 are respectively arranged at two ends of each pipe, and the optical fiber pressure-bearing pipes are arranged outside the pipe shell 2 for maintenance. Each optical fiber pressure bearing pipe 1 is independent, and different numbers of optical fiber pressure bearing pipes 1 can be arranged in the shell according to actual yield. The body of the pipe shell 2 is provided with a first inlet 3 and a first outlet 4, and a temperature sensor 7. The outer surface of the tubular reactor is provided with a heat-insulating layer.
The gas source of the high-pressure hydrogenation pipeline 9 is provided by a hydrogen cylinder or a high-pressure hydrogen gas source, and if the pressure of the gas source does not reach the working pressure, a pneumatic booster pump can be arranged in the pipeline. The high-pressure hydrogen is connected with a first inlet 3 of an optical fiber pressure-bearing pipe on the tubular reactor through a quarter-inch pipe and is led to a designated position through a first outlet 4 of the optical fiber pressure-bearing pipe on the tubular reactor.
The gas source of the nitrogen purging pipeline 10 is provided by a nitrogen cylinder or a nitrogen source, and if the pressure of the gas source does not reach the working pressure, a pneumatic booster pump can be arranged in the pipeline. The nitrogen is connected with a nitrogen inlet of an optical fiber pressure-bearing pipe on the tubular reactor through a quarter-inch pipe; and the nitrogen is exhausted to a designated position through a nitrogen exhaust port of the optical fiber pressure bearing pipe 1 on the tubular reactor.
High-pressure hydrogen hydrogenation pipeline 9, nitrogen gas sweep pipeline 10 and evacuation pipeline 11 all public a pipeline, carry out switching control through a three-way valve and three stop valve, have reduced entire system's pipeline, have reduced tubular reactor optic fibre pressure-bearing pipe 1's trompil simultaneously to leakage point has been reduced, whole public pipeline adopts the cutting ferrule to connect simultaneously, has both practiced thrift the cost, also is convenient for later stage to examine and maintain.
The water (oil) source of the controllable loop 12 is provided by a temperature controllable water tank (or oil tank), the water tank is provided with a heating rod and a condensing coil, and is provided with a control cabinet, and the control cabinet can be set with a designated temperature. When the temperature of the water bath (oil bath) is too low, the control cabinet controls the heating rod to heat the water (oil) source; when the temperature of the water bath (oil bath) is too high, the control cabinet stops heating the water (oil) source by the heating rod; the cooling water in the condensing coil cools the water (oil) source. The water (oil) source inlet is connected with the water bath (oil bath) inlet on the pipe shell 2 of the tubular reactor through the pipe with the diameter of phi 25, and returns to the water tank (or the oil tank) through the water bath (oil bath) outlet on the pipe shell 2, and simultaneously the temperature of the water bath (oil bath) is fed back from time to time through the temperature sensor on the shell of the tubular reactor.
The specific operation steps are as follows:
first step of putting in optical fiber
And opening a flange cover at one end of the tubular reactor, putting the optical fiber in the flange cover, and closing the flange cover.
Second step of vacuum pumping
And (4) vacuumizing the tubular reactor by using a vacuum pump, and closing a valve on a vacuumizing pipeline after vacuumizing.
Third step tubular reactor pipe case 2 water injection (oil)
And opening a water (oil) tank temperature control switch, opening a water (oil) tank valve to inject water (oil) into the tube-type reactor shell 2 after the temperature of liquid in the water (oil) tank reaches a specified temperature, and performing the next operation after the temperature is constant.
Fourth, adding high-pressure hydrogen
And opening an air inlet valve of the high-pressure hydrogen hydrogenation pipeline 9, and injecting high-pressure hydrogen into the tubular reactor. After the pressure is increased to the designated pressure, the air inlet valve on the high-pressure hydrogen hydrogenation pipeline 9 is closed. And maintaining the pressure for the time required by the optical fiber.
The fifth step of evacuating the high pressure hydrogen
And opening an emptying valve of the high-pressure hydrogen hydrogenation pipeline 9, emptying the hydrogen in the tubular reactor to a specified position, opening a nitrogen purging pipeline, emptying the hydrogen in the tubular reactor by using nitrogen, and closing a nitrogen purging loop valve.
Sixth step of taking out optical fiber
And opening a flange cover at one end of the tubular reactor, drawing out the optical fiber, and closing the flange cover.
Claims (10)
1. An optical fiber hydrogen-carrying reaction system, characterized in that: the device comprises a tubular reactor, a high-pressure hydrogen hydrogenation pipeline (9), a nitrogen purging pipeline (10), a vacuumizing pipeline (11) and a controllable loop (12).
2. The optical fiber hydrogen-bearing reaction system according to claim 1, wherein: the tubular reactor comprises an optical fiber pressure-bearing pipe (1), a pipe shell (2), a first inlet (3), a first outlet (4), a second inlet (5), a second outlet (6), a temperature sensor interface (7) and a support (8); the optical fiber pressure-bearing pipes (1) are uniformly distributed in the pipe shell (2), and two ends of each optical fiber pressure-bearing pipe (1) are respectively provided with a first inlet (3) and a first outlet (4); the pipe shell (2) is provided with a second inlet (5) and a second outlet (6), and the temperature sensor (7) is arranged at the outer end of the second outlet (6) pipeline; the support (8) supports the housing (2).
3. The optical fiber hydrogen-bearing reaction system according to claim 1, wherein: the high-pressure hydrogen hydrogenation pipeline (9), the nitrogen purging pipeline (10) and the vacuumizing pipeline (11) share one pipeline.
4. The optical fiber hydrogen-bearing reaction system according to claim 1, wherein: the high-pressure hydrogen hydrogenation pipeline (9) is connected with the first inlet (3) through a pipeline, and the first outlet (4) of the optical fiber pressure-bearing pipe on the tubular reactor is arranged at a designated position.
5. The optical fiber hydrogen-bearing reaction system according to claim 1, wherein: the inlet gas of the first inlet (3) comprises hydrogen or nitrogen, and the outlet gas of the first outlet (4) comprises hydrogen or nitrogen.
6. The optical fiber hydrogen-bearing reaction system according to claim 1, wherein: the second inlet (5) is a water bath or oil bath liquid inlet, and the second outlet (6) is a water bath or oil bath liquid outlet.
7. The optical fiber hydrogen-bearing reaction system according to claim 1, wherein: the controllable loop (12) is used for circulating water or oil, and a heating rod and a condensing coil are arranged on the water tank or the oil tank, and a temperature control cabinet is arranged.
8. The optical fiber hydrogen-bearing reaction system according to claim 1, wherein: the high-pressure hydrogenation pipeline (9) can be matched with a pneumatic booster pump in the pipeline.
9. The optical fiber hydrogen-bearing reaction system according to claim 1, wherein: the number, the length and the diameter of the optical fiber pressure bearing pipes (1) can be adjusted according to actual working conditions.
10. The optical fiber hydrogen-bearing reaction system according to claim 1, wherein: the heat-insulating layer can be additionally arranged outside the pipe shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111036394.2A CN113835151A (en) | 2021-09-06 | 2021-09-06 | Optical fiber hydrogen-carrying reaction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111036394.2A CN113835151A (en) | 2021-09-06 | 2021-09-06 | Optical fiber hydrogen-carrying reaction system |
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| Publication Number | Publication Date |
|---|---|
| CN113835151A true CN113835151A (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111036394.2A Pending CN113835151A (en) | 2021-09-06 | 2021-09-06 | Optical fiber hydrogen-carrying reaction system |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651565A (en) * | 2015-12-30 | 2016-06-08 | 上海华爱色谱分析技术有限公司 | Field sampling device for SF6 gas analysis |
| CN107024733A (en) * | 2017-06-16 | 2017-08-08 | 武汉光谷航天三江激光产业技术研究院有限公司 | A kind of optical fiber hydrogen-carrying photosensitivity-enhancing equipment and load hydrogen methods |
| CN209508042U (en) * | 2019-01-22 | 2019-10-18 | 长飞（武汉）光系统股份有限公司 | A kind of Multi-channel type optical fiber load hydrogen production device |
| CN110426179A (en) * | 2019-07-31 | 2019-11-08 | 杭州永特信息技术有限公司 | A kind of high-precision diversification optical fiber optical wand atmosphere experimental rig and test method |
-
2021
- 2021-09-06 CN CN202111036394.2A patent/CN113835151A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651565A (en) * | 2015-12-30 | 2016-06-08 | 上海华爱色谱分析技术有限公司 | Field sampling device for SF6 gas analysis |
| CN107024733A (en) * | 2017-06-16 | 2017-08-08 | 武汉光谷航天三江激光产业技术研究院有限公司 | A kind of optical fiber hydrogen-carrying photosensitivity-enhancing equipment and load hydrogen methods |
| CN209508042U (en) * | 2019-01-22 | 2019-10-18 | 长飞（武汉）光系统股份有限公司 | A kind of Multi-channel type optical fiber load hydrogen production device |
| CN110426179A (en) * | 2019-07-31 | 2019-11-08 | 杭州永特信息技术有限公司 | A kind of high-precision diversification optical fiber optical wand atmosphere experimental rig and test method |
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Application publication date: 20211224 |