CN103962021B - A kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure - Google Patents
A kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure Download PDFInfo
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- CN103962021B CN103962021B CN201410189283.9A CN201410189283A CN103962021B CN 103962021 B CN103962021 B CN 103962021B CN 201410189283 A CN201410189283 A CN 201410189283A CN 103962021 B CN103962021 B CN 103962021B
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Abstract
The present invention relates to optical fiber fabrication arts, be specifically related to a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure。It includes opening the circulation of deuterium proportion unit, by deuterium proportion unit evacuation, input the pure deuterium gas of certain pressure, pure nitrogen gas to deuterium proportion unit, to be 0.3-5.0%, temperature be until the pressure that obtains deuterium is 0-100KPa, the concentration proportioning deuterium of 20-50 DEG C that on-line real-time measuremen controls, the proportioning deuterium of gained exports optical fiber processing operation and uses。The present invention passes through on-line checking and control, pure nitrogen gas and the online proportioning of pure deuterium gas can be made to the deuterium concentration being arbitrarily designated, pressure, and the dual change of self adaptation deuterium concentration, pressure, realizing the synchronization proportioning of deuterium concentration, pressure, effective management and control deuterium is supplied, and reduces gas supply risk and cost, controllability is strong, deuterium concentration is secure, improves gas efficiency of supply, thus improve optical fiber production ability。
Description
Technical field
The present invention relates to optical fiber fabrication arts, be specifically related to a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure。
Background technology
The invention belongs to the deuterium treatment process of fiber manufacturing。Current domestic each optical fiber manufacturer is the deuterium that direct purchase has mixed, cost intensive。
Prior art proposed to carry out nitrogen and deuterium the device of online proportioning in optical fiber processing, but the method that can not realize, mainly it is difficult to control deuterium concentration and pressure simultaneously and be automatically adjusted its concentration to remain unchanged, such as utility model 200920297990.4。Therefore deuterium used by existing fiber treatment process, be directly purchase by the gas manufacturer deuterium certain good to nitrogen and deuterium proportioning concentration。For fiber manufacturers, supply system increases, and controllability reduces, and cannot in use guarantee the concentration of deuterium；Disclosure satisfy that the gas generation business of requirement is few, Judge Method in Determining Supplying Risks is bigger simultaneously。Additionally, buy the cost highly significant that the good deuterium of proportioning is shared in fiber manufacturing chain, individually buy nitrogen and deuterium then price advantage is obvious。
Summary of the invention
For the deficiency existed in prior art, the present invention provides a kind of on-line synchronous can regulate deuterium concentration, pressure, controllability is strong, risk is low, cost is low, deuterium concentration is secure concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure。
To achieve these goals, the present invention realizes by the following technical solutions:
A kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure, comprise the steps,
(1) circulation of deuterium proportion unit is opened；
(2) by deuterium proportion unit evacuation；
(3) pure deuterium gas of certain pressure is inputted to deuterium proportion unit, deuterium concentration and deuterium pressure in on-line real-time measuremen deuterium proportion unit, according to deuterium concentration and the deuterium pressure data of detection, control unit controls whether that input pure deuterium gas is until deuterium concentration and pressure reach setting value；
(4) pure nitrogen gas of certain pressure is inputted to deuterium proportion unit, deuterium concentration and deuterium pressure in on-line real-time measuremen deuterium proportion unit, control unit controls whether input pure nitrogen gas according to the deuterium concentration of detection and deuterium pressure data to be 0.3-5.0%, temperature is until the pressure that obtains deuterium is 0-100KPa, concentration the proportioning deuterium of 20-50 DEG C, and the proportioning deuterium of gained exports optical fiber processing operation and uses；
(5) on-line real-time measuremen to the deuterium pressure in deuterium proportion unit be reduced to limit value time, control unit is automatically replenished pure deuterium gas according to deuterium concentration and the deuterium pressure data of detection, repeats step (3) until deuterium concentration and pressure reach setting value；
(6) control unit is automatically replenished pure nitrogen gas according to the deuterium concentration in the deuterium proportion unit of detection and deuterium pressure data, repeats step (4) until obtaining proportioning deuterium to export the use of optical fiber processing operation；
(7) step (5), (6) are repeated。
Above-mentioned a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure, the circulating water temperature of its described deuterium proportion unit is 20-50 DEG C。
Above-mentioned a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure, its described deuterium is inputted deuterium matching device by deuterium tank。
Above-mentioned a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure, its described nitrogen is inputted deuterium matching device by Nitrogen Station。
Above-mentioned a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure, its described deuterium proportion unit is large sealing tank。
Above-mentioned a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure, its described control unit controls the switch of deuterium, nitrogen and proportioning deuterium by two-position-five-way solenoid valve and mass flowmenter。
Above-mentioned a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure, its described control unit is by the input of PLC controls deuterium, nitrogen。
Beneficial effect:
The present invention passes through on-line checking and control, pure nitrogen gas and the online proportioning of pure deuterium gas can be made to the deuterium concentration being arbitrarily designated, pressure, and the dual change of self adaptation deuterium concentration, pressure, realizing the synchronization proportioning of deuterium concentration, pressure, effective management and control deuterium is supplied, and reduces gas supply risk and cost, controllability is strong, deuterium concentration is secure, improves gas efficiency of supply, thus improve optical fiber production ability。
Accompanying drawing explanation
The present invention is described in detail below in conjunction with the drawings and specific embodiments；
Fig. 1 is proportioning schematic diagram of the present invention。
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with detailed description of the invention, the present invention is expanded on further。
With reference to Fig. 1, deuterium proportion unit 3 of the present invention utilizes deuterium and nitrogen supply (NS) pipeline to obtain a certain amount of deuterium and nitrogen from deuterium storage element 1 and nitrogen storage unit 2, and by specified pressure good for proportioning, concentration, temperature deuterium export the operation of optical fiber processing。Deuterium proportion unit 3 adopts large sealing process tank, deuterium storage element 1 to adopt deuterium tank, and nitrogen storage unit 2 adopts Nitrogen Station。Deuterium proportion unit 3 includes water temperature cycling element, and it controls the temperature after deuterium proportioning according to the temperature that control unit 6 sets, and adapts with the optical fiber processing with postorder。
In the process to deuterium proportioning, deuterium concentration, temperature, proportioning deuterium pressure and other parameters in the improper meeting of some or all of control cause proportioning after deuterium be not suitable for optical fiber processing operation, consequently, it is possible to cause that postorder optical fiber resistant to hydrogen ability reduces。In the present embodiment, according to current optical fiber production situation, the state modulator scope that unit 5 arranges is set and is respectively as follows: proportioning deuterium target concentration range: 0.3% 5.0%, the temperature range of proportioning deuterium: 20 50 DEG C, proportioning deuterium target pressure range: 0 100kPa。
The present invention includes the detection unit 4 of concentration and pressure, it is respectively before deuterium proportioning, deuterium concentration in deuterium proportion unit 3 and pressure are detected, to determine whether deuterium concentration in deuterium proportion unit 3 and gas pressure reach requirement, control unit 6 decides whether the operation proceeding to be filled with nitrogen or deuterium；In deuterium proportioning, deuterium concentration in deuterium proportion unit 3 and gas pressure are detected, so that whether the concentration and pressure determining deuterium reaches setting value, control unit 6 decides whether to continue to pass into nitrogen or deuterium according to testing result, and when proportioning, it is possible to judge during according to pressure detecting whether deuterium proportion unit pressure leakages occurs；After deuterium proportioning, deuterium tank carrying out concentration and pressure detecting, control unit 6 judges whether to reach setting value according to testing result, to decide whether to proceed charge operation。
The present invention adopts two-position-five-way solenoid valve and mass flowmenter to perform the opening and closing operations to each gas storage unit as gas switch controller, electromagnetic valve is controlled by control unit 6 according to the detected value of the setting value and detection unit 4 that arrange unit 5, thus realizing the on-line automatic proportioning of gas。After completing proportioning process, it is supplied to optical fiber processing to use the gas that proportioning is good。The electromagnetic valve that other are suitable can also be adopted。
Control unit 6 preferably programmable logic controller (PLC), its input being possible not only to control nitrogen and deuterium, it is also possible to simultaneously control output to multiple optical fiber treating devices, thus improving gas supply capacity。
Embodiment 1
For proportioning temperature 25 DEG C, concentration 1.0%, pressure 80kPa proportioning deuterium, according to the mixed deuterium method of on-line automaticization provided by the invention, following steps should be carried out: temperature control: deuterium proportion unit 3 is led to recirculated water, it is ensured that in its tank, temperature and pipe temperature are constant temperature 25 DEG C；Evacuation: first to deuterium proportion unit 3 evacuation, gets rid of the air in deuterium proportion unit 3；It is filled with deuterium: the deuterium in deuterium storage element 1 is filled into deuterium proportion unit 3 to pressure 800Pa；It is filled with nitrogen: the nitrogen in nitrogen storage unit 2 is filled into deuterium proportion unit 3 to force value to reaching 80kPa；Proportioning deuterium: in these cases, deuterium and nitrogen automatically mix rapidly in proportion unit and reached 25 DEG C, 1.0%, 80kPa；
Embodiment 2
After embodiment 1 completes, because of certain reason cause the gas concentration in proportion unit and pressure to become 0.3%, 50kPa time, now programme-control first supplements deuterium to pressure 50.65kPa, then supplements nitrogen and can recover deuterium concentration 1.0%, pressure 80kPa to pressure 80kPa。
Embodiment 3
After embodiment 1 completes, because certain reason causes that proportion unit pressure 80kPa is unchanged, concentration reduces to 0.3%, deuterium proportion unit is first evacuated to pressure 79.438kPa by now programme-control, then supplements deuterium and can recover deuterium concentration 1.0%, pressure 80kPa to 80kPa。
In case study on implementation, switch controller is utilized to control supply and the stopping of nitrogen and deuterium。Utilizing the concentration value in concentration and pressure sensing cell detection deuterium proportion unit and force value, and testing result is transported to control unit, control unit is according to detecting that value determines supply and the stopping of deuterium compared with setting value。After completing whole proportioning process, equipment indicating lamp gives a green light, and automatically switches to the state that can supply for optical fiber processing, and in proportioning not up to when specifying target, equipment indicating lamp gives a green light, and switches to the state that cannot be carried out optical fiber processing supply。
The present invention passes through on-line checking and control, pure nitrogen gas and the online proportioning of pure deuterium gas can be made to the deuterium concentration being arbitrarily designated, pressure, and the dual change of self adaptation deuterium concentration, pressure, realizing the synchronization proportioning of deuterium concentration, pressure, effective management and control deuterium is supplied, and reduces gas supply risk and cost, controllability is strong, deuterium concentration is secure, improves gas efficiency of supply, thus improve optical fiber production ability。
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described。Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; described in above-described embodiment and description is that principles of the invention is described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within the claimed scope of the invention。Claimed scope is defined by appending claims and equivalent thereof。
Claims (7)
1. a concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure, it is characterised in that comprise the steps,
(1) circulation of deuterium proportion unit is opened；
(2) by deuterium proportion unit evacuation；
(3) pure deuterium gas of certain pressure is inputted to deuterium proportion unit, the concentration of proportioning deuterium and pressure in on-line real-time measuremen deuterium proportion unit, according to concentration and the pressure data of the proportioning deuterium of detection, control unit controls whether that input pure deuterium gas is until deuterium concentration and pressure reach setting value；
(4) pure nitrogen gas of certain pressure is inputted to deuterium proportion unit, the concentration of proportioning deuterium and pressure in on-line real-time measuremen deuterium proportion unit, control unit control whether input pure nitrogen gas according to the concentration of proportioning deuterium of detection and pressure data until obtain pressure to be 0-100KPa, concentration be 0.3-5.0%, temperature is the proportioning deuterium of 20-50 DEG C, the proportioning deuterium of gained exports optical fiber processing operation and uses；
(5) on-line real-time measuremen to the deuterium pressure of the proportioning deuterium in deuterium proportion unit be reduced to limit value time, control unit is automatically replenished pure deuterium gas according to concentration and the pressure data of the proportioning deuterium of detection, repeats step (3) until concentration and the pressure of proportioning deuterium reach setting value；
(6) control unit is automatically replenished pure nitrogen gas according to concentration and the pressure data of the proportioning deuterium in the deuterium proportion unit of detection, repeats step (4) until obtaining proportioning deuterium to export the use of optical fiber processing operation；
(7) step (5), (6) are repeated。
2. a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure according to claim 1, it is characterised in that the circulating water temperature of described deuterium proportion unit is 20-50 DEG C。
3. a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure according to claim 1, it is characterised in that described deuterium is input to deuterium proportion unit by deuterium tank。
4. a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure according to claim 1, it is characterised in that described nitrogen is input to deuterium proportion unit by Nitrogen Station。
5. a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure according to claim 1, it is characterised in that described deuterium proportion unit is large sealing tank。
6. a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure according to claim 1, it is characterised in that described control unit controls the switch of deuterium, nitrogen and proportioning deuterium by two-position-five-way solenoid valve and mass flowmenter。
7. a kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure according to claim 1, it is characterised in that described control unit is by the input of PLC controls deuterium, nitrogen。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410189283.9A CN103962021B (en) | 2014-05-07 | 2014-05-07 | A kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure |
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| CN201410189283.9A CN103962021B (en) | 2014-05-07 | 2014-05-07 | A kind of concentration, the adjustable optical fiber deuterium matching method of Simultaneous Pressure |
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| CN103962021B true CN103962021B (en) | 2016-06-22 |
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| CN108929050A (en) * | 2017-05-24 | 2018-12-04 | 中天科技光纤有限公司 | A kind of optical fiber deuterium processing unit, system and method |
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