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A kind of deuterium gas proportioning method for optical fiber with adjustable concentration and pressure synchronously

A deuterium and concentration technology, applied in mixing methods, chemical instruments and methods, mixer accessories, etc., can solve the problems of inability to ensure deuterium concentration, increase in supply links, and high supply risks, so as to improve gas supply efficiency and improve Productivity, Risk and Cost Reduction Effects

Active Publication Date: 2016-06-22
JIANGSU HENGTONG OPTICAL FIBER TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For optical fiber manufacturers, the supply link increases, the controllability decreases, and the concentration of deuterium gas cannot be guaranteed during use; at the same time, there are very few gas manufacturers that can meet the requirements, and the supply risk is greater

Method used

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  • A kind of deuterium gas proportioning method for optical fiber with adjustable concentration and pressure synchronously

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Taking the proportioning deuterium gas with a proportioning temperature of 25°C, a concentration of 1.0%, and a pressure of 80kPa as an example, according to the online automatic deuterium mixing method provided by the present invention, the following steps should be carried out: temperature control: 3 pass circulating water to the deuterium proportioning unit , to ensure that the temperature in the tank and the pipeline are at a constant temperature of 25°C; vacuuming: vacuumize the deuterium gas proportioning unit 3 for the first time, and remove the air in the deuterium gas proportioning unit 3; charge deuterium gas: put the deuterium gas storage unit 1 Fill the deuterium gas in the deuterium gas proportioning unit 3 to a pressure of 800Pa; fill in nitrogen gas: fill the nitrogen gas in the nitrogen gas storage unit 2 into the deuterium gas proportioning unit 3 until the pressure reaches 80kPa; proportion the deuterium gas: Under the above conditions, deuterium and ni...

Embodiment 2

[0033] After the completion of Example 1, for some reason, when the gas concentration and pressure in the proportioning unit become 0.3% and 50kPa, the program control first replenishes deuterium to a pressure of 50.65kPa, and then replenishes nitrogen to a pressure of 80kPa. Restore the concentration of deuterium to 1.0%, and the pressure to 80kPa.

Embodiment 3

[0035] After the completion of Example 1, for some reason, the pressure of the proportioning unit was 80kPa unchanged, and the concentration was reduced to 0.3%. At this time, the program control first evacuated the deuterium proportioning unit to a pressure of 79.438kPa, and then added deuterium to 80kPa. That is to say, the concentration of deuterium gas is 1.0%, and the pressure is 80kPa.

[0036] In an implementation case, an on-off controller is used to control the supply and stop of nitrogen and deuterium. Use the concentration and pressure detection unit to detect the concentration value and pressure value in the deuterium gas proportioning unit, and send the detection result to the control unit, and the control unit determines the supply and stop of deuterium gas according to the comparison between the detected value and the set value. After the entire matching process is completed, the indicator light of the equipment turns green, and automatically switches to the sta...

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Abstract

The invention relates to the field of optical fiber manufacturing, in particular to a deuterium gas proportioning method for optical fibers with synchronously adjustable concentration and pressure. It includes opening the circulating water system of the deuterium gas proportioning unit, vacuuming the deuterium gas proportioning unit, inputting a certain pressure of pure deuterium and pure nitrogen to the deuterium gas proportioning unit, and performing online real-time detection and control until the pressure of the deuterium gas is obtained. 0-100KPa, the concentration is 0.3-5.0%, and the temperature is 20-50°C, the proportioned deuterium gas is output to the optical fiber processing process for use. Through online detection and control, the present invention can make the online ratio of pure nitrogen and pure deuterium gas to any specified deuterium gas concentration and pressure, and adapt to the double change of deuterium gas concentration and pressure to realize the synchronous distribution of deuterium gas concentration and pressure. It can effectively control the supply of deuterium gas, reduce the risk and cost of gas supply, have strong controllability, ensure the concentration of deuterium gas, improve the efficiency of gas supply, and thus increase the production capacity of optical fibers.

Description

technical field [0001] The invention relates to the field of optical fiber manufacturing, in particular to a deuterium gas proportioning method for optical fibers with synchronously adjustable concentration and pressure. Background technique [0002] The invention belongs to the deuterium gas treatment procedure of optical fiber manufacturing. At present, all domestic optical fiber manufacturers directly purchase deuterium gas that has been mixed, which is expensive. [0003] The prior art has proposed a device for online rationing of nitrogen and deuterium in optical fiber processing, but there is no method that can be realized. The main reason is that it is difficult to simultaneously control the concentration and pressure of deuterium and automatically adjust the concentration to keep it constant. If it is practical New type 200920297990.4. Therefore, the deuterium gas used in the existing optical fiber processing process is directly purchased by the gas manufacturer wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F3/02B01F15/04B01F23/10
Inventor 张功会郭浩林戚仁宝顾灵卫陈明殷国亮贺作为廖平录薛亮李建明孙贵林袁健
Owner JIANGSU HENGTONG OPTICAL FIBER TECH