CN218434914U - Helium recovery device of optical fiber perform - Google Patents
Helium recovery device of optical fiber perform Download PDFInfo
- Publication number
- CN218434914U CN218434914U CN202122312153.8U CN202122312153U CN218434914U CN 218434914 U CN218434914 U CN 218434914U CN 202122312153 U CN202122312153 U CN 202122312153U CN 218434914 U CN218434914 U CN 218434914U
- Authority
- CN
- China
- Prior art keywords
- helium
- pipeline
- communicated
- valve
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The utility model discloses an optical fiber perform's helium recovery unit, including titanium alloy cooler, booster pump, alkali lye pond, gas collecting tank, helium compressor, drier-filter and helium purifier, the booster pump is being linked to in the export of titanium alloy cooler, the booster pump passes through pipeline and alkali lye pond intercommunication, install the flowmeter on the pipeline that the booster pump is connected to the alkali lye pond, the other end and the gas collecting tank in alkali lye pond are connected, gas collecting tank and helium compressor intercommunication, the helium compressor is being linked to cooling arrangement through cooling tube, the export of helium compressor is being linked to drier-filter's import through the pipeline, be equipped with the safety relief valve on the export pipeline of helium compressor, and be in series connection air feed valve and check valve, the export of drier-filter is being linked to the import of helium purifier through the pipeline, the export intercommunication of helium purifier has the buffer tank; the utility model relates to a simply, convenient operation has solved the difficult point of tail gas helium recovery of optical fiber perform fritting furnace.
Description
Technical Field
The utility model relates to a helium recovery technical field, concretely relates to optical fiber perform's helium recovery unit.
Background
Helium is a colorless and tasteless inert gas, the content of the helium in the air is very rare, the extraction difficulty from the air is high, the cost is high, the helium is generally extracted from natural gas, but most of the natural gas mainly containing helium is distributed in the United states, catals, poland and other areas, and developed countries carry out secret blockade on the technology for extracting the helium, so that nearly 99% of the helium in China is totally dependent on import, so the helium is a very rare resource in China, and the helium recovery is very necessary in the production and manufacturing of helium required to be used.
Helium gas is inactive in chemical property and has good thermal conductivity, so that the helium gas can be widely applied to the production of an optical fiber preform, can prevent the optical fiber preform from being oxidized, exerts the thermal conductivity and saves energy consumption. However, most of the prior art relates to helium recovery in a cooling pipe, and the recovery of helium in tail gas discharged from a sintering furnace is seldom concerned, mainly because the temperature of the tail gas discharged from the sintering furnace is as high as 1500-2000 ℃, and the tail gas contains 8% of chlorine, so that the tail gas is high in temperature and corrosive, and needs to be cooled by introducing a large amount of air and then is discharged into a corrosion-resistant pipeline for treatment, so that helium in the original tail gas is greatly diluted, the extraction difficulty is improved, and the tail gas contains 8% of chlorine. In view of the above drawbacks, it is necessary to design a helium recovery apparatus for an optical fiber preform.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an optical fiber perform's helium recovery unit to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an optical fiber perform's helium recovery unit, includes titanium alloy cooler, booster pump, alkali liquor pond, gas collection tank, helium compressor, drier-filter and helium purifier, the gas vent of fritting furnace is connected to the titanium alloy cooler, just the port that the fritting furnace leads to the air is sealed, the export of titanium alloy cooler is being linked together the booster pump, and the booster pump passes through the pipeline and is being linked together with alkali liquor pond, and the flowmeter is installed on the pipeline that the booster pump is connected to alkali liquor pond, and the other end and the gas collection tank of alkali liquor pond are connected, and the gas collection tank communicates with the helium compressor, and the helium compressor is being linked together through cooling line and cooling device, and the export of helium compressor is being linked together the import of drier-filter through the pipeline, is equipped with the safety relief valve on the export pipeline of helium compressor to air feed valve and check valve are being established ties, and the import department of drier-filter is equipped with the profit blow-off valve through the three-way pipe, and the import of helium purifier is being linked together through the pipeline to the export of helium purifier, and the export of helium purifier is communicated with the buffer tank.
Preferably, the last intercommunication of buffer tank has purity analyzer, and buffer tank and gas collecting tank pass through the tail gas exhaust pipeline and link to each other, installs the three-way valve on the tail gas exhaust pipeline, and the buffer tank passes through recovery pipeline and air-vent valve intercommunication, installs the air-vent valve on the recovery pipeline, and the surge tank communicates with the air inlet of fritting furnace.
Preferably, the helium purifier is communicated with the liquid nitrogen storage tank through a liquid conveying pipe, and the liquid conveying pipe is connected with a liquid conveying valve in series.
Compared with the prior art, the utility model relates to an optical fiber perform's helium recovery unit cools off the high temperature tail gas that the fritting furnace produced through the titanium alloy cooler, and the tail gas after the cooling is passed through booster pump and is sent to alkali lye pond and get rid of the chlorine in the tail gas, is compressed tail gas to the high pressure gas of 20MPa pressure by the helium compressor again, installs drier-filter behind the helium compressor, and the oil water drying that will compress in the high pressure helium after the compression filters, and the oil water of collection is discharged through the oil water blowdown valve; the cooling equipment provides forced cooling for the helium compressor through a cooling pipeline, and takes away and discharges redundant heat generated after the helium compressor works; the liquid nitrogen storage tank of the utility model provides low-temperature liquid nitrogen for the helium purifier through the transfusion valve and the transfusion pipe, so that the air impurities in the helium realize low-temperature condensation separation; helium with purity of more than 98% purified by a helium purifier passes through a buffer tank and is subjected to real-time detection on the purity of the purified helium by a purity analyzer, when the purity of the helium in the buffer tank is low, tail gas containing the helium with low purity is discharged through a tail gas exhaust pipeline, the tail gas is sent into a three-way valve, one part of the tail gas is emptied, the other part of the tail gas is returned into a gas collecting tank and mixed with waste helium for circular purification, when the purity of the helium in the buffer tank is high, the tail gas containing the helium with high purity is discharged by a buffer tank through a recovery pipeline, the tail gas is sent into a pressure stabilizing tank, the helium with purity reaching the standard flowing out of the buffer tank enters a pressure stabilizing tank through a recovery pipeline after being reduced in pressure by a pressure regulating valve, and is supplied to a sintering furnace through the pressure stabilizing tank, the device is simple in design and convenient to operate, and solves the problem of tail gas helium recovery of an optical fiber sintering preform furnace; on the premise of not influencing optical fiber production, the usage amount of helium is greatly reduced, the recycling amount of helium in optical fiber manufacturing production is increased, the production cost of optical fiber enterprises is reduced, the emission of impurity gas is reduced, and the environment is protected.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and do not constitute a limitation on the invention, and in the drawings:
fig. 1 is a schematic structural view of the helium recovery device for an optical fiber preform of the present invention.
In the drawings:
1. a titanium alloy cooler; 2. a booster pump; 3. an alkaline solution pool; 4. a gas collection tank; 5. a flow meter; 6. a helium gas compressor; 7. sintering furnace; 8. an air supply valve; 9. a one-way valve; 10. drying the filter; 11. an oil-water blow-off valve; 12. a recovery pipeline; 13. a helium purifier; 14. a cooling pipeline; 15. a cooling device; 16. A buffer tank; 17. a purity analyzer; 18. a tail gas exhaust pipeline; 19. a three-way valve; 20. a pressure regulating valve; 21. a surge tank; 22. a transfusion tube; 23. a liquid nitrogen storage tank; 24. an infusion valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a helium recovery device of an optical fiber perform comprises a titanium alloy cooler 1, a booster pump 2, an alkaline liquid pool 3, a gas collecting tank 4, a helium compressor 6, a drying filter 10 and a helium purifier 13, wherein the titanium alloy cooler 1 is connected with an exhaust port of a sintering furnace 7, an air inlet of the sintering furnace 7 is sealed, an outlet of the titanium alloy cooler 1 is communicated with the booster pump 2, the booster pump 2 is communicated with the alkaline liquid pool 3 through a pipeline, the booster pump 2 is connected to the pipeline of the alkaline liquid pool 3 and is provided with a flowmeter 5, the other end of the alkaline liquid pool 3 is connected with the gas collecting tank 4, the gas collecting tank 4 is communicated with the helium compressor 6, the helium compressor 6 is communicated with a cooling device 15 through a cooling pipeline 14, an outlet of the helium compressor 6 is communicated with an inlet of the drying filter 10 through a pipeline, and an outlet pipeline of the helium compressor 6 is provided with a safety relief valve, the air supply valve 8 and the one-way valve 9 are connected in series, the safety relief valve is used for automatic pressure relief, an oil-water blow-off valve 11 is arranged at the inlet of the drying filter 10 through a three-way pipe, the outlet of the drying filter 10 is communicated with the inlet of the helium purifier 13 through a pipeline, the outlet of the helium purifier 13 is communicated with a buffer tank 16, a purity analyzer 17 is communicated with the buffer tank 16, the buffer tank 16 and the gas collecting tank 4 are connected through a tail gas exhaust pipeline 18, a three-way valve 19 is installed on the tail gas exhaust pipeline 18, the buffer tank 16 is communicated with a pressure regulating valve 20 through a recovery pipeline 12, the recovery pipeline 12 is provided with the pressure regulating valve 20, a pressure stabilizing tank 21 is communicated with the air inlet of the sintering furnace 7, and the pressure stabilizing tank 21 is externally connected with a standard air supply pressure helium source to supplement the loss of circulating helium and the normal helium supply under the maintenance condition of recovery and purification equipment so as to ensure normal production; the helium purifier 13 is communicated with a liquid nitrogen storage tank 23 through a liquid conveying pipe 22, and an infusion valve 24 is connected to the liquid conveying pipe 22 in series.
The helium compressor 6 is a vertical double-row, water-cooling, five-stage compression, skid-mounted and high-pressure compressor, the air displacement of a single compressor is not less than 300Nm3/h, and the highest working pressure is 22MPa.
The dry filter 10 is a high-pressure dry filter which is adsorbed by silica gel and a molecular sieve, heated for regeneration and vacuumized, and mainly has the functions of drying and filtering high-pressure helium compressed by a helium compressor, controlling the oil content in the helium to be within 10ppm, filtering most of moisture separated out by condensation in the compression process of the compressor, controlling the dew point of the helium to be about-50 ℃, and blowing off oil and water accumulated at the bottom of the dry filter by adopting a blowing-off method.
The cooling device 12 is a liquid cooling source with multiple effects, air cooling and two refrigeration modes of conventional heat exchange and compression refrigeration, provides circulating cooling water for the helium compressor, conveys low-temperature cooling water provided after refrigeration to the helium compressor to provide refrigeration capacity for the helium compressor, and conveys high-temperature cooling water subjected to heat exchange with the helium compressor back to refrigerate again, so that closed cycle is formed. The cooling capacity of the cooling device 12 is more than 110kw.
The helium purifier 13 is a Dewar type purifier with high capacity, low temperature and high pressure condensation separation and adsorption, the working pressure is 22MPa, and the working flow exceeds 300m < 3 >/h. The helium purifier 13 can adsorb air impurities in helium, and freeze or adsorb impurity gas with boiling point higher than that of liquid nitrogen, so that low-purity helium in the inner capsule of the aerostat is purified, and the purification rate is more than 98%.
The geometric volume of the liquid nitrogen storage tank 23 is larger than 10m < 3 > and is used for storing low-temperature liquid nitrogen, and the liquid nitrogen is input into the helium purifier 13 through the liquid conveying pipe and the liquid conveying valve 24, so that low-temperature fractionation of air impurities in the helium is realized, and the initial purity of the helium is met.
The working principle of the utility model is as follows: the high-temperature tail gas generated by the sintering furnace 7 is cooled through the titanium alloy cooler 1, the cooled tail gas is sent to the alkali liquor pool 3 through the booster pump 2 to remove chlorine in the tail gas, the tail gas is compressed to high-pressure gas with the pressure of 20MPa through the helium gas compressor 6, the drying filter 10 is installed behind the helium gas compressor 6, oil and water in the compressed high-pressure helium gas are dried and filtered, and the collected oil and water are discharged through the oil and water blow-off valve 11. A safety pressure relief valve, an air supply valve 8 and a one-way valve 9 are sequentially arranged between an air outlet of the helium compressor 6 and an air inlet of the dry filter 10 and used for adjusting the pressure, the flow and the flow direction of high-pressure helium in a pipeline, a cooling device 15 provides forced cooling for the helium compressor 6 through a cooling pipeline 14, and excess heat generated after the helium compressor works is taken away and discharged.
The helium gas after drying and purification enters a helium gas purifier 13 for purification, and a liquid nitrogen storage tank 23 supplies low-temperature liquid nitrogen to the helium gas purifier 13 through a transfusion valve 24 and a transfusion pipe 22, so that air impurities in the helium gas are subjected to low-temperature condensation separation. Helium with purity of more than 98% purified by a helium purifier 13 passes through a buffer tank 16 and is subjected to real-time detection on the purity of the purified helium by a purity analyzer 17, when the purity of the helium in the buffer tank 16 is low, tail gas containing the helium with low purity is discharged through a tail gas exhaust pipeline 18, the tail gas is sent into a three-way valve 19, one part of the tail gas is discharged, the other part of the tail gas returns to a gas collecting tank 4 and is mixed with waste helium for circulation and purification, when the purity of the helium in the buffer tank 16 is high, the buffer tank 16 discharges the tail gas containing the helium with high purity through a recovery pipeline 12, the tail gas is sent into a pressure stabilizing tank 21, the helium with purity reaching the standard flowing out of the buffer tank 16 is decompressed by a pressure regulating valve 20, enters the pressure stabilizing tank 21 through the recovery pipeline 12 and is supplied to a sintering furnace 7 through the pressure stabilizing tank 21, the device is simple in design and convenient to operate, and the problem of difficult helium tail gas recovery of an optical fiber preform sintering furnace is solved; on the premise of not influencing optical fiber production, the usage amount of helium is greatly reduced, the recycling amount of helium in optical fiber manufacturing production is increased, the production cost of optical fiber enterprises is reduced, the emission of impurity gas is reduced, and the environment is protected.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides an optical fiber perform's helium recovery unit which characterized in that: comprises a titanium alloy cooler (1), a booster pump (2), an alkali liquor pool (3), a gas collecting tank (4), a helium compressor (6), a drying filter (10) and a helium purifier (13), wherein the titanium alloy cooler (1) is connected with an exhaust port of a sintering furnace (7), the port of the sintering furnace (7) for introducing air is sealed, the outlet of the titanium alloy cooler (1) is communicated with a booster pump (2), the booster pump (2) is communicated with an alkali liquor pool (3) through a pipeline, a flowmeter (5) is installed on the pipeline of the booster pump (2) connected to the alkali liquor pool (3), the other end of the alkali liquor pool (3) is connected with a gas collecting tank (4), the gas collecting tank (4) is communicated with a helium compressor (6), the helium compressor (6) is communicated with a cooling device (15) through a cooling pipeline (14), the outlet of the helium compressor (6) is communicated with the inlet of a drying filter (10) through a pipeline, a safety relief valve is arranged on the outlet pipeline of the helium compressor (6), and is connected in series with an air feeding valve (8) and a one-way valve (9), an oil-water blow-off valve (11) is arranged at the inlet of the drying filter (10) through a three-way pipe, the outlet of the drying filter (10) is communicated with the inlet of a helium purifier (13) through a pipeline, and the outlet of the helium purifier (13) is communicated with a buffer tank (16).
2. The helium recovering apparatus for the optical fiber preform of claim 1, wherein: the device is characterized in that the buffer tank (16) is communicated with a purity analyzer (17), the buffer tank (16) and the gas collecting tank (4) are connected through a tail gas exhaust pipeline (18), a three-way valve (19) is installed on the tail gas exhaust pipeline (18), the buffer tank (16) is communicated with a pressure regulating valve (20) through a recovery pipeline (12), the pressure regulating valve (20) is installed on the recovery pipeline (12), and the pressure stabilizing tank (21) is communicated with a gas inlet of the sintering furnace (7).
3. The helium recovering apparatus for the optical fiber preform of claim 1, wherein: the helium purifier (13) is communicated with a liquid nitrogen storage tank (23) through a liquid conveying pipe (22), and a liquid conveying valve (24) is connected to the liquid conveying pipe (22) in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122312153.8U CN218434914U (en) | 2021-09-24 | 2021-09-24 | Helium recovery device of optical fiber perform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122312153.8U CN218434914U (en) | 2021-09-24 | 2021-09-24 | Helium recovery device of optical fiber perform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218434914U true CN218434914U (en) | 2023-02-03 |
Family
ID=85080864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122312153.8U Active CN218434914U (en) | 2021-09-24 | 2021-09-24 | Helium recovery device of optical fiber perform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218434914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116983704A (en) * | 2023-09-27 | 2023-11-03 | 上海良薇机电工程有限公司 | Condensing device and method |
-
2021
- 2021-09-24 CN CN202122312153.8U patent/CN218434914U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116983704A (en) * | 2023-09-27 | 2023-11-03 | 上海良薇机电工程有限公司 | Condensing device and method |
| CN116983704B (en) * | 2023-09-27 | 2023-12-22 | 上海良薇机电工程有限公司 | Condensing device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218434914U (en) | Helium recovery device of optical fiber perform | |
| CN108726481B (en) | Treatment device for polycrystalline silicon reduction tail gas | |
| CN218972408U (en) | Liquid filling system of electronic grade hydrogen bromide | |
| CN203569054U (en) | Dehumidifying device for converter gas | |
| CN104944393A (en) | Device and method for obtaining high-purity helium gas through concentration and purification | |
| CN102173382B (en) | Byproduct hydrogen purification recovery system and method in chlorine industry | |
| CN211619943U (en) | Membrane separation nitrogen making device | |
| CN202715264U (en) | Viscose fibre waste gas condensing device | |
| CN202030521U (en) | Purifying and recovering system for byproduct hydrogen in chlor-alkali industry | |
| CN210559394U (en) | Helium recovery and purification device | |
| CN106753633A (en) | A kind of natual gas dehydrate unit | |
| CN211837274U (en) | Natural gas purification and desulfurization system | |
| CN108793078A (en) | A kind of isocyanates by-product hydrogen chloride purification devices | |
| CN212299665U (en) | Device for recovering argon tail gas in monocrystalline silicon production | |
| CN110498401B (en) | Helium recovery purifying device | |
| CN204085210U (en) | Prime purifier in annealing furnace system tail gas recycling device | |
| CN209317079U (en) | A kind of petroleum vapor recovery oil liquid collection device | |
| CN208574418U (en) | A kind of exhaust gas processing device of diffusion furnace | |
| CN219637302U (en) | Gold refining system | |
| CN207245681U (en) | A kind of well casing gas separation, purification, supercharging recovery system | |
| CN212467633U (en) | Alcohol condensation recovery device | |
| CN110295072A (en) | The purifying device for natural gas and purification method of small-sized skid | |
| CN110526223A (en) | A kind of high pure nitrogen purifying technique and device | |
| CN219736096U (en) | Heat recovery device of polycrystalline silicon tail gas recovery compression system | |
| CN217698618U (en) | Dimethyl sulfide tail gas recovery equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |