CN212151627U - Device for recovering helium from tail gas discharged by optical fiber preform sintering furnace - Google Patents
Device for recovering helium from tail gas discharged by optical fiber preform sintering furnace Download PDFInfo
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- CN212151627U CN212151627U CN202020615729.0U CN202020615729U CN212151627U CN 212151627 U CN212151627 U CN 212151627U CN 202020615729 U CN202020615729 U CN 202020615729U CN 212151627 U CN212151627 U CN 212151627U
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Abstract
The utility model relates to a retrieve device of helium in follow optical fiber perform fritting furnace emission tail gas, including pipe connection in proper order: the device comprises a titanium alloy cooler, a vacuum pump, an alkali liquor pool, an air bag, a compressor, a cooler, a molecular sieve, a low-temperature absorber and a filling membrane press. The device of the utility model selects the cooler made of titanium alloy to cool the high-temperature tail gas, the cooled tail gas is sent to the alkali liquor washing device to remove the chlorine in the tail gas, and then the molecular sieve and the low-temperature adsorber are used for removing water and purifying carbon dioxide, the device has simple design and convenient operation, and solves the problem of tail gas helium recovery of the optical fiber perform sintering 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.
Description
Technical Field
The utility model relates to a helium recovery unit field especially relates to a retrieve device of helium in follow optical fiber perform fritting furnace exhaust tail gas.
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 helium recovery 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-.
Therefore, it is an urgent need to solve the problem of the technical personnel in the field to develop a device capable of recovering and purifying helium in the tail gas of the optical fiber preform sintering furnace.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a retrieve device of helium in following optical fiber perform fritting furnace emission tail gas to prior art's defect.
In order to achieve the purpose, the utility model adopts the technical proposal that:
the utility model provides a retrieve device of helium in follow optical fiber perform fritting furnace exhaust tail gas, including pipeline connection in proper order: the device comprises a titanium alloy cooler, a vacuum pump, an alkali liquor pool, an air bag, a compressor, a cooler, a molecular sieve, a low-temperature absorber and a filling membrane press.
Further, a helium outlet of the filling film press is connected with a filling bus bar.
Furthermore, helium is arranged on a connecting pipeline between the low-temperature absorber and the filling membrane press,
further, the titanium alloy cooler is connected with an exhaust port of the sintering furnace, and an air-through port of the sintering furnace is sealed.
The utility model adopts the above technical scheme, compare with prior art, have following technical advantage:
the utility model discloses a retrieve device of helium in follow optical fiber perform fritting furnace exhaust tail gas selects the cooler of titanium alloy preparation to cool off high temperature tail gas, and the tail gas after the cooling is sent to alkali lye washing device and is got rid of the chlorine in the tail gas, is removed water and carbon dioxide purification by molecular sieve and low temperature adsorber again, and the equipment design is simple, and convenient operation has solved the tail gas helium recovery difficult point of optical fiber perform fritting 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
FIG. 1 is a schematic view of an apparatus for recovering helium from exhaust gas discharged from a sintering furnace for an optical fiber preform according to the present invention;
wherein the reference numerals are:
the method comprises the following steps of 1-titanium alloy cooler, 2-vacuum pump, 3-alkali liquor pool, 4-air bag, 5-compressor, 6-cooler, 7-molecular sieve, 8-low temperature absorber, 9-helium analyzer, 10-filling membrane press and 11-filling busbar.
Detailed Description
The present invention will be described in detail and specifically with reference to specific embodiments so as to provide a better understanding of the present invention, but the following embodiments do not limit the scope of the present invention.
As shown in fig. 1, the embodiment of the utility model provides a retrieve device of helium in follow optical fiber perform fritting furnace exhaust tail gas, including pipeline connection in proper order: the device comprises a titanium alloy cooler 1, a vacuum pump 2, an alkali liquor pool 3, an air bag 4, a compressor 5, a cooler 6, a molecular sieve 7, a low-temperature adsorber 8, a filling membrane press 10 and a filling busbar 11; a helium analyzer 9 is arranged on a connecting pipeline of the low-temperature absorber 8 and the filling membrane press 10; the titanium alloy cooler 1 is connected with an exhaust port of the sintering furnace, and an air-through port of the sintering furnace is sealed.
The working principle of the device for recovering helium from tail gas discharged by the optical fiber preform sintering furnace in the embodiment is as follows: introducing tail gas with the temperature of 1500 ℃ and the chlorine content of 8 percent discharged from an exhaust port of a sintering furnace into a titanium alloy cooler 1, reducing the temperature to 80 ℃, conveying the tail gas after temperature reduction to an alkali liquor pool 3 by a vacuum pump 2, removing chlorine, collecting crude helium after dechlorination in an air bag 4, pressurizing to 4Mpa by a compressor 5, then cooling in a cooler 6, removing water and carbon dioxide by a molecular sieve 7 after cooling, further purifying by a low-temperature adsorber 8, enabling the purity of the helium at an outlet of a helium analyzer 9 to reach 99.999 percent, conveying the pure helium to a filling membrane press 10, pressurizing and filling a filling busbar 11.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (4)
1. The utility model provides a retrieve device of helium in follow optical fiber perform fritting furnace emission tail gas which characterized in that, including pipeline connection in proper order: the device comprises a titanium alloy cooler (1), a vacuum pump (2), an alkali liquor pool (3), an air bag (4), a compressor (5), a cooler (6), a molecular sieve (7), a low-temperature adsorber (8) and a filling membrane press (10).
2. The apparatus for recovering helium from exhaust gas of a sintering furnace for optical fiber preforms according to claim 1, wherein a charging bus (11) is connected to a helium outlet of the charging membrane press (10).
3. The apparatus for recovering helium from exhaust gas of a sintering furnace for optical fiber preforms according to claim 1, characterized in that a helium analyzer (9) is provided on the connecting line between the low-temperature adsorber (8) and the filling membrane press (10).
4. The apparatus for recovering helium from exhaust gas discharged from a sintering furnace for optical fiber preforms according to claim 1, characterized in that the titanium alloy cooler (1) is connected to an exhaust port of the sintering furnace, and the port of the sintering furnace through which air is introduced is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020615729.0U CN212151627U (en) | 2020-04-22 | 2020-04-22 | Device for recovering helium from tail gas discharged by optical fiber preform sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020615729.0U CN212151627U (en) | 2020-04-22 | 2020-04-22 | Device for recovering helium from tail gas discharged by optical fiber preform sintering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212151627U true CN212151627U (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202020615729.0U Active CN212151627U (en) | 2020-04-22 | 2020-04-22 | Device for recovering helium from tail gas discharged by optical fiber preform sintering furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212151627U (en) |
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2020
- 2020-04-22 CN CN202020615729.0U patent/CN212151627U/en active Active
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