CN112551917A - Optical fiber low water peak treatment gas recycling system and method - Google Patents
Optical fiber low water peak treatment gas recycling system and method Download PDFInfo
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- CN112551917A CN112551917A CN202011440598.8A CN202011440598A CN112551917A CN 112551917 A CN112551917 A CN 112551917A CN 202011440598 A CN202011440598 A CN 202011440598A CN 112551917 A CN112551917 A CN 112551917A
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Abstract
The invention discloses a system and a method for recycling optical fiber low water peak treatment gas, wherein the system comprises: the device comprises a vacuum pump and a plurality of reaction tanks, wherein the reaction tanks are used for carrying out low water peak optical fiber treatment; the vacuum pump is used for extracting gas in the reaction tank which finishes the low water peak optical fiber treatment and transmitting the extracted gas to the reaction tank waiting for reaction. By implementing the invention, a plurality of reaction tanks and vacuum pumps are arranged, the vacuum pumps can extract the gas in the reaction tank which finishes the low water peak optical fiber treatment, and transmit the extracted gas to the reaction tank waiting for reaction, thereby realizing the recycling of the gas required by the low water peak optical fiber treatment, especially deuterium gas, avoiding the waste of deuterium gas and reducing the cost of the low water peak optical fiber treatment. Meanwhile, only a reaction tank and a vacuum pump for reaction are arranged in the optical fiber low water peak processing gas recycling system, so that the occupied area of the circulating system is small, potential safety hazard points are few, and the system safety is improved.
Description
Technical Field
The invention relates to the technical field of gas energy utilization, in particular to a system and a method for recycling optical fiber low water peak treatment gas.
Background
During the drawing process of the optical fiber, some disordered Si-0 free radicals are generated, Si-0H is easily generated, and the Si-0H easily causes the optical fiber to be aged. Therefore, various full-wave optical fibers can be subjected to long-time corrosion in a hydrogen-containing environment after being subjected to deuterium treatment after being drawn. Deuterium gas treatment of optical fibers is the final step in optical fiber manufacture, and the mechanism of action is to cause deuterium to react with Si-0 radicals to form Si-0D, which can act to stop the hydrogen from replacing the deuterium position, so that the optical fibers can withstand the corrosion of a hydrogen-containing environment for a long time. It is known that the purpose of the deuterium treatment is to eliminate the chemical bond defect of the optical fiber and to improve the hydrogen damage resistance of the optical fiber.
Deuterium treatment, also called low water peak fiber treatment, can effectively eliminate the OH ion absorption peak of the fiber through the treatment process, and open the fifth window of 1350-1450nm, so that the operating wavelength of the single-mode fiber is extended from 1260nm to 1625 nm. The attenuation of the optical fiber at 1383nm can be effectively reduced after the optical fiber is subjected to low water peak treatment. Deuterium is a key gas for low water peak treatment of an optical fiber, in the existing optical fiber deuterium treatment, after the deuterium treatment is finished, the gas is directly discharged, so that the deuterium is wasted, the deuterium is expensive, the low water peak optical fiber treatment cost is high, and the space for increasing the profit of the optical fiber is limited.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a system and a method for recycling a low water peak processing gas of an optical fiber, so as to solve the technical problem of deuterium waste in the prior art.
The technical scheme provided by the invention is as follows:
the first aspect of the embodiments of the present invention provides a system for recycling a low water peak treatment gas of an optical fiber, including: the device comprises a deuterium gas tank, a deuterium gas concentration detector, a vacuum pump and a plurality of reaction tanks, wherein the reaction tanks are used for carrying out low water peak optical fiber treatment; the vacuum pump is used for extracting gas in the reaction tank which finishes the low water peak optical fiber treatment and transmitting the extracted gas to the reaction tank waiting for reaction; the deuterium concentration detector is used for detecting whether the gas concentration in the reaction tank of the gas input by the vacuum pump reaches a first preset value; and the deuterium gas tank is used for filling gas into the reaction tank which does not reach the first preset value when the detection result of the deuterium gas concentration detector does not reach the first preset value.
Optionally, the optical fiber low water peak process gas recycling system further comprises: the pressure sensor is used for detecting whether the pressure in the reaction tank of the gas input by the vacuum pump is smaller than a second preset value; and the nitrogen tank is used for filling nitrogen into the reaction tank with the pressure intensity smaller than the second preset value when the detection result of the pressure sensor is smaller than the second preset value.
Optionally, the optical fiber low water peak process gas recycling system further comprises: the oxygen concentration detector is used for detecting whether the oxygen concentration in the gas extracted by the vacuum pump is greater than a third preset value; the deuterium concentration detector is also used for detecting whether the concentration of deuterium in the gas extracted by the vacuum pump is less than a fourth preset value; the controller is used for controlling gas pumped by the vacuum pump to be discharged out of the optical fiber low water peak treatment gas recycling system when the oxygen concentration is greater than a third preset value and the deuterium concentration is less than a fourth preset value.
Optionally, the deuterium gas tank and the nitrogen gas tank are also used to fill the reaction tank for low water peak fiber treatment with the reaction raw gas.
Optionally, the deuterium gas tank and the nitrogen gas tank are connected with a plurality of reaction tanks through gas inlet pipes, circulation pipes are connected among the reaction tanks, the vacuum pump is arranged on the circulation pipes, and control switches are arranged on the gas inlet pipes and the circulation pipes.
Optionally, the plurality of reaction tanks and the vacuum pump are disposed within a chamber.
The second aspect of the embodiments of the present invention provides a method for recycling a low water peak treatment gas of an optical fiber, including: judging whether a reaction tank for finishing the low water peak optical fiber treatment exists in the plurality of reaction tanks; when a reaction tank for finishing the low water peak optical fiber treatment exists, extracting gas in the reaction tank for finishing the low water peak optical fiber treatment through a vacuum pump, and transmitting the extracted gas to a reaction tank waiting for reaction; detecting whether the concentration of deuterium gas in a reaction tank filled with gas by a vacuum pump reaches a second preset value; and when the detection result is that the second preset value is not reached, filling deuterium gas into the reaction tank which does not reach the second preset value.
Optionally, the method for recycling the optical fiber low water peak treatment gas further comprises: detecting whether the pressure in a reaction tank filled with gas input by the vacuum pump is smaller than a first preset value or not; and when the detection result is smaller than the first preset value, filling gas into the reaction tank with the pressure smaller than the first preset value.
Optionally, before the extracted gas is transmitted to the reaction tank waiting for reaction, determining whether the oxygen concentration in the gas extracted by the vacuum pump is greater than a third preset value; detecting whether the concentration of deuterium in the gas extracted by the vacuum pump is less than a fourth preset value; and controlling the gas pumped by the vacuum pump to be discharged when the oxygen concentration is greater than a third preset value and the deuterium concentration is less than a fourth preset value.
The technical scheme of the invention has the following advantages:
according to the optical fiber low water peak treatment gas recycling system provided by the embodiment of the invention, the vacuum pump can extract the gas in the reaction tank for completing the low water peak optical fiber treatment by arranging the plurality of reaction tanks and the vacuum pump, and the extracted gas is transmitted to the reaction tank waiting for reaction, so that the recycling of the gas required by the low water peak optical fiber treatment, especially deuterium gas, is realized, the waste of deuterium gas is avoided, and the cost of the low water peak optical fiber treatment is reduced. Meanwhile, only a reaction tank and a vacuum pump for reaction are arranged in the optical fiber low water peak processing gas recycling system, so that the occupied area of the circulating system is small, potential safety hazard points are few, and the system safety is improved.
The optical fiber low water peak treatment gas recycling system provided by the embodiment of the invention is arranged indoors, namely, the vacuum pump and the reaction tanks are arranged indoors, so that the pipeline length of the gas inlet pipeline and the circulating pipeline to be laid is short, the distance between the reaction tanks is shortened, the integral recycling time of the system can be reduced, and the integral recycling efficiency is improved. Meanwhile, the system has less equipment and fewer pipeline welding points, so that the system has fewer potential safety hazard points.
According to the method for recycling the low water peak treatment gas of the optical fiber, provided by the embodiment of the invention, the recycling of the gas required by the low water peak optical fiber treatment, especially deuterium gas, is realized by judging whether a reaction tank for completing the reaction exists or not and directly pumping the gas in the reaction tank for completing the reaction into other reaction tanks to be reacted, so that the waste of the deuterium gas is avoided, and the cost of the low water peak optical fiber treatment is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a block diagram of a recycling system for fiber low water peak process gas in an embodiment of the present invention;
FIG. 2 is a block diagram of a fiber optic low water peak process gas recycling system according to another embodiment of the present invention;
FIG. 3 is a flow chart of a method for recycling deuterium in an embodiment of the present invention;
FIG. 4 is a flow chart of a deuterium recycling method according to another embodiment of the present invention;
FIG. 5 is a flow chart of a deuterium recycling method according to another embodiment of the present invention;
FIG. 6 is a flow chart of a method for recycling deuterium in accordance with another embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment of the invention provides an optical fiber low water peak treatment gas recycling system, as shown in fig. 1, the system comprises: the device comprises a deuterium gas tank, a deuterium gas concentration detector, a vacuum pump 2 and a plurality of reaction tanks 1, wherein the reaction tanks 1 are used for carrying out low water peak optical fiber treatment; the vacuum pump 2 is used for extracting gas in the reaction tank which finishes the low water peak optical fiber treatment and transmitting the extracted gas to the reaction tank waiting for reaction; the deuterium concentration detector is used for detecting whether the gas concentration in the reaction tank of the gas input by the vacuum pump reaches a first preset value; the deuterium gas tank is used for filling gas into the reaction tank which does not reach the first preset value when the detection result of the deuterium gas concentration detector is that the first preset value is not reached. In one embodiment, other gas treatment processes can be realized in the reaction tank, so that the recycling of corresponding gases is realized.
In one embodiment, in the system, if the retort a completes the low water peak fiber treatment, and the retort B waits for the low water peak fiber treatment, at this time, the gas in the retort a may be pumped into the retort B through a vacuum pump, and at the same time, the deuterium concentration detector detects whether the gas concentration in the retort B reaches a second preset value, and if the gas concentration does not meet the requirement, the deuterium in the deuterium tank may be delivered into the retort B through a gas inlet pipe, so that the retort B can successfully complete the low water peak fiber treatment, specifically, the second preset value may be 1%, and when the deuterium concentration in the retort is less than 1%, the gas concentration in the retort may not successfully complete the treatment process.
According to the optical fiber low water peak treatment gas recycling system provided by the embodiment of the invention, the vacuum pump can extract the gas in the reaction tank for completing the low water peak optical fiber treatment by arranging the plurality of reaction tanks and the vacuum pump, and the extracted gas is transmitted to the reaction tank waiting for reaction, so that the recycling of the gas required by the low water peak optical fiber treatment, especially deuterium gas, is realized, the waste of deuterium gas is avoided, and the cost of the low water peak optical fiber treatment is reduced. Meanwhile, only a reaction tank and a vacuum pump for reaction are arranged in the optical fiber low water peak processing gas recycling system, so that the occupied area of the circulating system is small, potential safety hazard points are few, and the system safety is improved.
In one embodiment, the optical fiber low water peak processing gas recycling system is further provided with a nitrogen tank, and the deuterium gas tank and the nitrogen tank are used for providing raw gas for a first reaction tank of the optical fiber low water peak processing gas recycling system for completing a first processing process of the circulating system. Deuterium gas pitcher and nitrogen gas jar can be connected with a plurality of retort through admission line, can set up control switch simultaneously on admission line, and control switch can be ball valve and solenoid valve. In addition, a circulating pipeline is connected among the reaction tanks, the vacuum pump is arranged on the circulating pipeline, and the circulating pipeline is also provided with a control switch.
In an embodiment, the optical fiber low water peak treatment gas recycling system can be arranged indoors, namely, the vacuum pump and the reaction tanks are arranged indoors, so that the pipeline length of the gas inlet pipeline and the pipeline length of the circulation pipeline which need to be laid are short, the distance between the reaction tanks is shortened, the overall recycling time of the system can be reduced, and the overall recycling efficiency is improved. Meanwhile, the system has less equipment and fewer pipeline welding points, so that the system has fewer potential safety hazard points.
In one embodiment, the fiber optic low water peak process gas recycling system further comprises: the pressure sensor is used for detecting whether the pressure intensity in the reaction tank of the gas input by the vacuum pump is smaller than a first preset value or not; and the nitrogen tank is used for filling gas into the reaction tank with the pressure intensity smaller than the first preset value when the detection result of the pressure sensor is smaller than the first preset value. When the low water peak optical fiber is processed, the pressure of the reaction tank needs to reach a certain condition, and the gas may cause some loss in the transmission process of the vacuum pump, so that the pressure of the reaction tank receiving the gas does not meet the condition, at this time, some nitrogen gas may be filled into the reaction tank, so that the pressure of the reaction tank reaches the reaction condition, for example, when the pressure is less than 20KPa, the nitrogen gas may be filled into the reaction tank.
In one embodiment, the fiber optic low water peak process gas recycling system further comprises: the oxygen concentration detector is used for detecting whether the oxygen concentration in the gas extracted by the vacuum pump is greater than a third preset value; the deuterium concentration detector is also used for detecting whether the concentration of deuterium in the gas extracted by the vacuum pump is less than a fourth preset value; the controller is used for controlling the gas pumped by the vacuum pump to be discharged out of the optical fiber low water peak treatment gas recycling system when the oxygen concentration is greater than a third preset value and the deuterium concentration is less than a fourth preset value. Specifically, when the controller detects that the oxygen concentration is greater than the third preset value and the deuterium concentration is less than the fourth preset value, it indicates that the gas pumped by the vacuum pump at this time does not meet the use requirement, and the gas can be directly exhausted. Wherein, the fourth preset value may be 1%; the third preset value may be 4%.
In an embodiment, as shown in fig. 2, a block diagram of the optical fiber low water peak processing gas recycling system is shown by taking five reaction tanks as an example, wherein the five reaction tanks a to E are respectively connected through a circulation pipeline and a vacuum pump, the circulation pipeline includes an air inlet pipeline and an air outlet pipeline, and the vacuum pump extracts gas in the reaction tank completing the processing process through the air outlet pipeline and transmits the gas to a certain reaction tank waiting for reaction through the air inlet pipeline. The five reaction tanks are also respectively connected with pressure sensors, and when the pressure sensors detect that the pressure in the reaction tanks is smaller than a first preset value; and the nitrogen tank is used for filling gas into the reaction tank with the pressure intensity smaller than the first preset value. In addition, the five reaction tanks are also respectively connected with a deuterium concentration detector, and when the deuterium concentration detector detects that the concentration in the reaction tanks is less than a second predicted value; the concentration of the deuterium gas tank is less than the second predicted value, and gas is filled into the reaction tank.
Example 2
The embodiment of the present invention further provides a recycling method of an optical fiber low water peak processing gas, and specifically, the recycling method may be used in the optical fiber low water peak processing gas recycling system in the above embodiment, as shown in fig. 3, the recycling method includes the following steps:
step S101: judging whether a reaction tank for finishing the low water peak optical fiber treatment exists in the plurality of reaction tanks; specifically, when the low water peak optical fiber treatment is performed, a plurality of reaction tanks, such as the reaction tank a, the reaction tank B, the reaction tank C, and the like, may be provided, and when the low water peak optical fiber treatment is performed, the gas required for the low water peak optical fiber treatment may be filled in the reaction tank a, and after the treatment of the reaction tank a is completed, it may be determined that the reaction tank a is the reaction tank in which the low water peak optical fiber treatment is completed.
Step S102: when a reaction tank for finishing the low water peak optical fiber treatment is available, gas in the reaction tank for finishing the low water peak optical fiber treatment is extracted by a vacuum pump, and the extracted gas is transmitted to a reaction tank waiting for reaction. Specifically, when it is determined that there is a reaction tank in which the reaction is completed, the gas in the reaction tank may be extracted, and the extracted gas may be input to the reaction tank waiting for the reaction. Specifically, when there are a plurality of untreated reaction vessels, the extracted gas is supplied to the reaction vessel in which the optical fiber has been placed.
Step S103: detecting whether the concentration of deuterium gas in a reaction tank filled with gas by a vacuum pump reaches a second preset value; for example, the reaction tank a completes the low water peak fiber treatment, the reaction tank B waits for the low water peak fiber treatment, at this time, the gas in the reaction tank a may be pumped into the reaction tank B through a vacuum pump, and at the same time, the gas analyzer detects whether the gas concentration in the reaction tank B reaches the second preset value, that is, whether the requirement of the low water peak fiber treatment is met.
Step S104: and when the detection result is that the second preset value is not reached, filling deuterium gas into the reaction tank which does not reach the second preset value. Specifically, if the gas concentration in the reaction tank B does not meet the requirement, the deuterium gas in the gas supply device can be delivered to the reaction tank B through the gas inlet pipeline, so that the reaction tank B can smoothly complete the low water peak optical fiber treatment.
According to the method for recycling the low water peak treatment gas of the optical fiber, provided by the embodiment of the invention, the recycling of the gas required by the low water peak optical fiber treatment, especially deuterium gas, is realized by judging whether a reaction tank for completing the reaction exists or not and directly pumping the gas in the reaction tank for completing the reaction into other reaction tanks to be reacted, so that the waste of the deuterium gas is avoided, and the cost of the low water peak optical fiber treatment is reduced.
In one embodiment, as shown in fig. 4, the method for recycling the fiber low water peak process gas further comprises the following steps:
step S201: detecting whether the pressure in a reaction tank of gas input by a vacuum pump is smaller than a first preset value; specifically, the gas may cause some loss during the transportation process by the vacuum pump, so that the pressure of the reaction tank receiving the gas does not satisfy the condition, and therefore, when a certain reaction tank is input with gas by the vacuum pump, whether the pressure of the reaction tank reaches the first preset value may be firstly detected.
Step S202: and when the detection result is smaller than the first preset value, filling gas into the reaction tank with the pressure smaller than the first preset value. Specifically, when the pressure of the reaction tank is less than the first preset value, some nitrogen may be charged into the reaction tank to make the pressure thereof reach the reaction condition.
In one embodiment, as shown in fig. 5, before the extracted gas is transmitted to the reaction tank waiting for reaction, the method for recycling the fiber low water peak processing gas further comprises the following steps:
step S301: and detecting whether the concentration of oxygen in the gas extracted by the vacuum pump is greater than a third preset value.
Step S302: and detecting whether the concentration of deuterium in the gas extracted by the vacuum pump is less than a fourth preset value.
Step S303: and controlling the gas pumped by the vacuum pump to be exhausted when the oxygen concentration is greater than the third preset value and the deuterium concentration is less than the fourth preset value.
Specifically, before the gas extracted by the vacuum pump is input into another reaction tank, it should be detected whether the gas meets the requirement for performing the reaction again, that is, whether the oxygen concentration is greater than a third preset value and the deuterium concentration is less than a fourth preset value, and when the oxygen concentration is greater than the third preset value and the deuterium concentration is less than the fourth preset value, it indicates that the gas extracted by the vacuum pump does not meet the use requirement, and then the gas can be directly discharged.
Example 3
The method for recycling the fiber low water peak processing gas provided by the embodiment of the invention takes the example that the fiber low water peak processing gas recycling system comprises two reaction tanks, namely a reaction tank A and a reaction tank B, and specifically describes the deuterium gas recycling process. As shown in fig. 6, when the retort a completes the low water peak optical fiber processing, the vacuum pump can pump the gas in the retort a into the retort B, at this time, the pressure sensor can be used to monitor whether the pressure of the retort a reaches 20KPa, if not, the retort B can be filled with nitrogen gas to make the internal pressure of the retort B reach the requirement, meanwhile, the deuterium gas concentration detector can be used to monitor whether the concentration of deuterium gas in the retort B after the gas filling reaches a second preset value, for example, 1%, when the concentration of deuterium gas is lower than 1%, the deuterium gas can be filled into the retort B by using the gas tank deuterium, so that the processing process in the retort B is completed smoothly. The process of the reaction tank B can also be monitored in real time by a gas analyzer. After the treatment process in the reaction tank B is finished, the gas can be pumped into the reaction tank A again, and the process treatment process in the reaction tank A is monitored in real time by adopting a pressure sensor and a gas analyzer, so that the cyclic utilization of the treated gas is realized.
Although the present invention has been described in detail with respect to the exemplary embodiments and the advantages thereof, those skilled in the art will appreciate that various changes, substitutions and alterations can be made to the embodiments without departing from the spirit and scope of the invention as defined by the appended claims. For other examples, one of ordinary skill in the art will readily appreciate that the order of the process steps may be varied while maintaining the scope of the present invention.
Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed, that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.
Claims (9)
1. An optical fiber low water peak treatment gas recycling system, comprising: a deuterium gas tank, a deuterium gas concentration detector, a vacuum pump and a plurality of reaction tanks,
the reaction tank is used for low water peak optical fiber treatment;
the vacuum pump is used for extracting gas in the reaction tank which finishes the low water peak optical fiber treatment and transmitting the extracted gas to the reaction tank waiting for reaction;
the deuterium concentration detector is used for detecting whether the gas concentration in the reaction tank of the gas input by the vacuum pump reaches a first preset value;
and the deuterium gas tank is used for filling gas into the reaction tank which does not reach the first preset value when the detection result of the deuterium gas concentration detector does not reach the first preset value.
2. The fiber optic low water peak process gas recycling system of claim 1, further comprising: a pressure sensor and a nitrogen tank are arranged in the tank,
the pressure sensor is used for detecting whether the pressure in the reaction tank of the gas input by the vacuum pump is smaller than a second preset value;
and the nitrogen tank is used for filling nitrogen into the reaction tank with the pressure intensity smaller than the second preset value when the detection result of the pressure sensor is smaller than the second preset value.
3. The fiber optic low water peak process gas recycling system of claim 1, further comprising: an oxygen concentration detector and a controller,
the oxygen concentration detector is used for detecting whether the oxygen concentration in the gas extracted by the vacuum pump is greater than a third preset value;
the deuterium concentration detector is also used for detecting whether the concentration of deuterium in the gas extracted by the vacuum pump is less than a fourth preset value;
the controller is used for controlling gas pumped by the vacuum pump to be discharged out of the optical fiber low water peak treatment gas recycling system when the oxygen concentration is greater than a third preset value and the deuterium concentration is less than a fourth preset value.
4. The fiber optic low water peak process gas recycling system according to claim 2, wherein said deuterium and nitrogen gas tanks are further used to fill the reaction tank for low water peak fiber processing with the reaction raw gas.
5. The fiber optic low water peak process gas recycling system according to claim 2, wherein said deuterium gas tank and nitrogen gas tank are connected with a plurality of reaction tanks through gas inlet pipes, circulation pipes are connected between said plurality of reaction tanks, said vacuum pump is disposed on said circulation pipes, and said gas inlet pipes and said circulation pipes are provided with control switches.
6. The fiber optic low water peak process gas recycling system of claim 1, wherein the plurality of reaction tanks and the vacuum pump are disposed within a chamber.
7. A method for recycling optical fiber low water peak treatment gas is characterized by comprising the following steps:
judging whether a reaction tank for finishing the low water peak optical fiber treatment exists in the plurality of reaction tanks;
when a reaction tank for finishing the low water peak optical fiber treatment exists, extracting gas in the reaction tank for finishing the low water peak optical fiber treatment through a vacuum pump, and transmitting the extracted gas to a reaction tank waiting for reaction;
detecting whether the concentration of deuterium gas in a reaction tank filled with gas by a vacuum pump reaches a second preset value;
and when the detection result is that the second preset value is not reached, filling deuterium gas into the reaction tank which does not reach the second preset value.
8. The method of claim 7, further comprising:
detecting whether the pressure in a reaction tank filled with gas input by the vacuum pump is smaller than a first preset value or not;
and when the detection result is smaller than the first preset value, filling gas into the reaction tank with the pressure smaller than the first preset value.
9. The method of claim 7, further comprising, before the step of transferring the extracted gas to a reaction tank waiting for reaction:
detecting whether the concentration of oxygen in the gas extracted by the vacuum pump is greater than a third preset value;
detecting whether the concentration of deuterium in the gas extracted by the vacuum pump is less than a fourth preset value;
and controlling the gas pumped by the vacuum pump to be discharged when the oxygen concentration is greater than a third preset value and the deuterium concentration is less than a fourth preset value.
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| CN207259382U (en) * | 2017-03-28 | 2018-04-20 | 富通集团（嘉善）通信技术有限公司 | A kind of optical fiber treating device |
| CN110639336A (en) * | 2019-10-28 | 2020-01-03 | 苏州朗道节能技术有限公司 | Deuterium gas circulation system for optical fiber processing |
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