An optical fiber deuterium gas processing system and process

Abstract

The present invention discloses an optical fiber deuterium gas processing system, which includes a processing box assembly. The processing box assembly includes a box body, a box door and at least one locking member. The cross-section of the box body is square, the inside of the box body is hollow and one end is open. The box door is arranged opposite to the open end of the box body and one side of it is hinged to the box body. The locking member includes a clamping head, a clamping block and a first linear driving member. The middle part of the clamping head is hinged to the box body through a first rotating shaft. The clamping block is arranged opposite to the box door and is connected to one end of the clamping head. The first linear driving member is fixed to the box body and its output shaft is hinged to the other end of the clamping head through a second rotating shaft, and is used to push the clamping head to rotate relative to the box body, so that the clamping block clamps the end of the box door far away from the box body. The present invention can push a trolley carrying an optical fiber reel into the box body.

Description

Technical Field

[0001] The present invention relates to the technical field of optical fiber deuterium gas treatment, and particularly relates to an optical fiber deuterium gas treatment system and process. Background Art

[0002] When performing deuterium gas treatment on an optical fiber, it is necessary to send the optical fiber reel into the treatment tank, and then perform batch treatment on multiple optical fiber reels. Currently, the treatment tanks used for treating optical fibers are all tanks with a hollow interior and an open end at one end. The tank body is generally circular, and a box door is generally provided at the open end of the tank body. Such a treatment tank has defects. Since the tank body is circular, the trolley carrying the optical fiber reel cannot be directly pushed into the circular tank body, and it is necessary to manually carry the optical fiber reels into the tank body one by one, which is not reasonably designed. Summary of the Invention

[0003] In view of this, it is necessary to provide an optical fiber deuterium gas treatment system and process to solve the technical problem that the trolley carrying the optical fiber reel cannot be pushed into the treatment tank in the prior art.

[0004] To achieve the above technical purpose, the technical solution of the present invention provides an optical fiber deuterium gas treatment system, including a treatment box assembly. The treatment box assembly includes a box body, a box door and at least one locking member. The cross-section of the box body is square, the interior of the box body is hollow and open at one end. The box door is arranged opposite to the open end of the box body and one side of it is hinged to the box body. The locking member includes a clamping head, a clamping block and a first linear driving member. The middle of the clamping head is hinged to the box body through a first rotating shaft. The clamping block is arranged opposite to the box door and connected to one end of the clamping head. The first linear driving member is fixed to the box body and its output shaft is hinged to the other end of the clamping head through a second rotating shaft, for pushing the clamping head to rotate relative to the box body, so that the clamping block clamps the end of the box door far away from the box body.

[0005] Further, the locking member further includes a connecting block. One end of the connecting block is hinged to the clamping head through the first rotating shaft, and the other end is hinged to the box body through a third rotating shaft.

[0006] Further, the number of the locking members is multiple, and the multiple locking members are arranged at intervals along the circumferential direction of the open end of the box body.

[0007] Further, the treatment box assembly further includes a plurality of first reinforcing ribs, and the first reinforcing ribs are connected to the outer wall of the box body.

[0008] Further, the first reinforcing ribs cover the outer wall of the box body in a grid shape.

[0009] Further, the processing box assembly further includes a second reinforcing rib, which is connected to the side of the box door away from the box body and covers the box door in a grid shape.

[0010] Further, the deuterium gas processing system further includes a ramp assembly, which includes a fixing plate, a ramp plate and a second linear driving member. The top side of the fixing plate is an inclined surface, and the height of the inclined surface continuously increases in the direction close to the box body. A fixing groove is formed at the top of the side of the fixing plate close to the box body. The fixing groove has a first side wall arranged opposite to the box body. One side of the ramp plate is rotatably arranged in the fixing groove and is arranged on the side of the first side wall close to the box body. The second linear driving member is arranged below the ramp plate. The fixed end of the second linear driving member is hinged to the fixing plate, and the output shaft is hinged to the ramp plate.

[0011] Further, the deuterium gas processing system further includes a deuterium gas assembly, a nitrogen gas assembly, a vacuum pumping assembly and an air assembly. The deuterium gas assembly includes a deuterium gas storage tank and a deuterium gas connecting pipe. The two ends of the deuterium gas connecting pipe are respectively communicated with the deuterium gas storage tank and the box body. The nitrogen gas assembly includes a nitrogen gas storage tank and a nitrogen gas connecting pipe. The two ends of the nitrogen gas connecting pipe are respectively communicated with the nitrogen gas storage tank and the box body. The intake end of the vacuum pumping assembly is communicated with the box body. The air assembly includes an air pipeline, and the air pipeline is communicated with the box body.

[0012] Further, the deuterium gas assembly further includes a first flowmeter and a first valve, both of which are arranged on the deuterium gas connecting pipe. The nitrogen gas assembly further includes a second flowmeter and a second valve, both of which are arranged on the nitrogen gas connecting pipe. The air assembly further includes a stop valve, and the stop valve is arranged on the air pipeline.

[0013] The present invention also relates to an optical fiber processing process, which is carried out by using the above-mentioned optical fiber deuterium gas processing system, and includes the following steps:

[0014] (1) Open the box door, send the optical fiber to be processed into the box body, and then close the box door;

[0015] (2) Start the first linear driving member, and the output shaft of the first linear driving member pushes the clamping block to clamp the side of the box door away from the box body;

[0016] (3) Start the vacuum pumping assembly, evacuate the box body to vacuum and keep the pressure for a period of time;

[0017] (4) Open the second valve for a period of time, and then start the vacuum pumping assembly to evacuate the box body to vacuum again;

[0018] (5) Open the first valve and the second valve, and control the ratio of deuterium gas and nitrogen gas entering the box body through the first flowmeter and the second flowmeter, so that the gas pressure in the box body reaches the preset process treatment pressure, and start to process the optical fiber;

[0019] (6) After the processing is carried out for a preset time, start the vacuum pumping assembly, pump the box body to vacuum again, then close the vacuum pumping assembly and open the stop valve. After a period of time, start the first linear drive member, and the output shaft of the first linear drive member retracts, so that the clamping block loosens the box door, and then open the box door to take out the optical fiber.

[0020] Compared with the prior art, the beneficial effects of the present invention include: by setting a box body with a square cross-section, the trolley carrying the optical fiber reel can be pushed into the box body, avoiding the problem that a circular tank cannot push the trolley. By setting a clamping member, when closing the box door, start the first linear drive member, and the output shaft of the first linear drive member pushes the clamping head to rotate, so that the clamping block clamps the side of the box door away from the box body, without manually locking the box door by a person. After processing the optical fiber, control the output shaft of the first linear drive member to retract, so that the output shaft of the first linear drive member drives the clamping head and the clamping block to rotate in a direction away from the box door, and then open the box door to avoid interference between the box door and the clamping head or the clamping block. Description of the Drawings

[0021] Figure 1 is a three-dimensional schematic diagram of the processing box assembly and the ramp assembly in the present invention;

[0022] Figure 2 is Figure 1 a partial enlarged schematic diagram of part A in

[0023] Figure 3 is a structural schematic diagram of the processing box assembly and the ramp assembly in the present invention;

[0024] Figure 4 is Figure 3 a partial enlarged schematic diagram of part B in

[0025] Figure 5 is a three-dimensional schematic diagram of another perspective of the processing box assembly and the ramp assembly in the present invention;

[0026] Figure 6 is Figure 5 a partial enlarged schematic diagram of part C in

[0027] Figure 7 is a structural schematic diagram of the present invention. Detailed Embodiments

[0028] The preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings. The accompanying drawings form a part of this application and are used together with the embodiments of the present invention to explain the principles of the present invention, rather than to limit the scope of the present invention.

[0029] The present invention provides an optical fiber deuterium gas treatment system, as Figures 1 to 7 shown, which includes at least one processing tank assembly 1, a deuterium gas assembly 2, a nitrogen gas assembly 3, a vacuum pumping assembly 4, and an air assembly 5. The processing tank assembly 1 includes a tank body 11, a tank door 12, and at least one locking member 13. The cross-section of the tank body 11 is square, the interior of the tank body 11 is hollow and one end is open. The tank door 12 is arranged opposite to the open end of the tank body 11 and one side of it is hinged to the tank body 11. The locking member 13 includes a clamping head 131, a clamping block 132, and a first linear driving member 133. The middle of the clamping head 131 is hinged to the tank body 11 through a first rotating shaft 134. The clamping block 132 is arranged opposite to the tank door 12 and is connected to one end of the clamping head 131. The first linear driving member 133 is fixed to the tank body 11 and its output shaft is hinged to the other end of the clamping head 131 through a second rotating shaft 135, and is used to push the clamping head 131 to rotate relative to the tank body 11, so that the clamping block 132 clamps the end of the tank door 12 away from the tank body 11.

[0030] Among them, the number of the processing tank assemblies 1 can be one, two, three, four, etc. Specifically, the number of the processing tank assemblies 1 is three, and the three processing tank assemblies 1 are arranged at intervals.

[0031] Among them, the first linear driving member 133 can be a cylinder, a hydraulic cylinder, an electric push rod, etc. In this embodiment, the first linear driving member 133 is a cylinder, and the cylinder body of the first linear driving member 133 is fixed to the outer wall of the tank body 11. The type of the first linear driving member 133 is not limited thereto.

[0032] Among them, one side of the tank door 12 is hinged to the tank body 11 through two hinges arranged at intervals. The connection between the tank door 12 and the tank body 11 through the hinges is prior art and will not be elaborated too much in this application.

[0033] By setting the tank body 11 with a square cross-section, the trolley carrying the optical fiber reel can be pushed into the tank body 11, avoiding the problem that a circular tank cannot push in the trolley. By setting the clamping member, when closing the tank door 12, start the first linear driving member 133. The output shaft of the first linear driving member 133 pushes the clamping head 131 to rotate, so that the clamping block 132 clamps the side of the tank door 12 away from the tank body 11. There is no need to manually lock the tank door 12 by hand. After processing the optical fiber, control the output shaft of the first linear driving member 133 to retract, so that the output shaft of the first linear driving member 133 drives the clamping head 131 and the clamping block 132 to rotate in a direction away from the tank door 12, and then open the tank door 12 to avoid interference between the tank door 12 and the clamping head 131 or the clamping block 132.

[0034] In this embodiment, the locking member 13 further includes a connecting block 136. One end of the connecting block 136 is hinged to the clamping head 131 through a first rotating shaft 134, and the other end is hinged to the box body 11 through a third rotating shaft 137.

[0035] By providing the connecting block 136, when the output shaft of the first linear driving member 133 retracts, the rotatable range of the clamping head 131 and the clamping block 132 can be increased, further avoiding interference between the clamping head 131 and the clamping block 132 and the box door 12.

[0036] In this embodiment, the number of the locking members 13 is multiple, and the multiple locking members 13 are arranged at intervals along the circumferential direction of the open end of the box body 11.

[0037] Among them, the number of the locking members 13 can be one, two, three, four, five, six, etc. In this embodiment, the number of the locking members 13 is twelve, and three locking members 13 are arranged on each side in the circumferential direction of the box door 12, but the number of the locking members 13 is not limited to this.

[0038] Specifically, each processing box assembly 1 further includes a first fixed pipe 14, a second fixed pipe 15, a fifth valve 16 and a sixth valve 17. One ends of the first fixed pipe 14 and the second fixed pipe 15 are respectively communicated with the box body 11, and the fifth valve 16 and the sixth valve 17 are respectively arranged on the first fixed pipe 14 and the second fixed pipe 15.

[0039] In this embodiment, the processing box assembly 1 further includes a plurality of first reinforcing ribs 18, and the first reinforcing ribs 18 are connected to the outer wall of the box body 11.

[0040] In this embodiment, the first reinforcing ribs 18 cover the outer wall of the box body 11 in a grid shape.

[0041] In this embodiment, the processing box assembly 1 further includes a second reinforcing rib 19, and the second reinforcing rib 19 is connected to the side of the box door 12 away from the box body 11 and covers the box door 12 in a grid shape.

[0042] The deuterium gas assembly 2 includes a deuterium gas storage 21 and a deuterium gas connecting pipe 22. Both ends of the deuterium gas connecting pipe 22 are respectively communicated with the deuterium gas storage 21 and the box body 11.

[0043] In this embodiment, the deuterium gas assembly 2 further includes a first flowmeter 23 and a first valve 24, and both the first flowmeter 23 and the first valve 24 are arranged on the deuterium gas connecting pipe 22.

[0044] In this embodiment, the deuterium gas assembly 2 further includes a first pressure regulating valve 25 and a first pressure gauge 26. The first pressure regulating valve 25, the first pressure gauge 26, the first flowmeter 23, and the first valve 24 are sequentially arranged on the deuterium gas connecting pipe 22 along the gas flow direction in the deuterium gas connecting pipe 22. The first pressure gauge 26 is used to detect and display the air pressure in the deuterium gas connecting pipe 22.

[0045] Among them, the deuterium gas storage 21 can be a pipe for supplying deuterium gas or a storage cylinder filled with deuterium gas. In this embodiment, the deuterium gas storage 21 is a storage cylinder filled with deuterium gas.

[0046] Among them, the first valve 24 can be a manual valve, a pneumatic valve, an electromagnetic valve, etc. In this embodiment, the first valve 24 is a pneumatic valve.

[0047] The nitrogen gas assembly 3 includes a nitrogen gas storage 31 and a nitrogen gas connecting pipe 32. The two ends of the nitrogen gas connecting pipe 32 are respectively connected and communicated with the nitrogen gas storage 31 and the box body 11.

[0048] In this embodiment, the nitrogen gas assembly 3 further includes a second flowmeter 33 and a second valve 34. The second flowmeter 33 and the second valve 34 are both arranged on the nitrogen gas connecting pipe 32.

[0049] Among them, the nitrogen gas storage 31 can be a pipe for supplying nitrogen gas or a storage cylinder filled with nitrogen gas. In this embodiment, the nitrogen gas storage 31 is a pipe for supplying nitrogen gas, but the type of the nitrogen gas storage 31 is not limited thereto.

[0050] Among them, the first flowmeter 23 and the second flowmeter 33 can be differential pressure flowmeters, rotameters, volumetric flowmeters, electromagnetic flowmeters, etc. In this embodiment, both the first flowmeter 23 and the second flowmeter 33 are mass flow controllers.

[0051] Among them, the second valve 34 can be a manual valve, a pneumatic valve, an electromagnetic valve, etc. In this embodiment, the second valve 34 is a pneumatic valve.

[0052] In this embodiment, the nitrogen gas assembly 3 further includes a second pressure regulating valve 35 and a second pressure gauge 36. The second pressure regulating valve 35, the second pressure gauge 36, the second flowmeter 33, and the second valve 34 are sequentially arranged on the nitrogen gas connecting pipe 32 along the gas flow direction in the nitrogen gas connecting pipe 32. The second pressure gauge 36 is used to detect and display the air pressure in the nitrogen gas connecting pipe 32.

[0053] The intake end of the vacuum pumping assembly 4 is connected and communicated with the box body 11.

[0054] In this embodiment, the vacuum pumping assembly 4 includes a vacuum pump 41, a suction pipe 42, and a third valve 43. One end of the suction pipe 42 is connected to the intake end of the vacuum pump 41, and the other end is connected to the box body 11. The third valve 43 is arranged on the suction pipe 42.

[0055] Among them, the third valve 43 can be a manual valve, a pneumatic valve, an electromagnetic valve, etc. In this embodiment, the third valve 43 is a pneumatic valve.

[0056] The air assembly 5 includes an air pipeline 51, and the air pipeline 51 is connected to the box body 11.

[0057] In this embodiment, the air assembly 5 further includes a stop valve 52, and the stop valve 52 is arranged on the air pipeline 51.

[0058] The air assembly 5 includes an air pipeline 51 and a stop valve 52. The air pipeline 51 is connected to the box body 11, and the stop valve 52 is arranged on the air pipeline 51.

[0059] Among them, the stop valve 52 can be a manual valve, a pneumatic valve, an electromagnetic valve, etc. In this embodiment, the stop valve 52 is a pneumatic valve.

[0060] In the present invention, the optical fiber deuterium gas treatment device further includes a sampling assembly 6. The sampling assembly 6 includes a deuterium gas concentration analyzer 61, a sampling intake pipeline 62, and a fourth valve 63. One end of the sampling intake pipeline 62 is connected to the box body 11, and the other end is connected to the intake end of the deuterium gas concentration analyzer 61. The fourth valve 63 is arranged on the sampling intake pipeline 62.

[0061] Among them, one end of the sampling intake pipeline 62 is connected to the other ends of the second fixed pipes 15 in the three treatment box assemblies 1.

[0062] Among them, the fourth valve 63 can be a manual valve, a pneumatic valve, an electromagnetic valve, etc. In this embodiment, the fourth valve 63 is a pneumatic valve.

[0063] Specifically, the sampling assembly 6 further includes a sampling outlet pipeline 64, a needle valve 65, and a third flowmeter 66. One end of the sampling outlet pipeline 64 is connected to the outlet end of the deuterium gas concentration analyzer 61. The needle valve 65 and the third flowmeter 66 are arranged on the sampling outlet pipeline 64 in sequence along the gas flow direction in the sampling outlet pipeline 64.

[0064] The gas pressure and flow rate during sampling and calibration are controlled by the needle valve 65 and the third flowmeter 66.

[0065] Specifically, the sampling assembly 6 further includes a calibration pipe 67 and a ball valve 68. One end of the calibration pipe 67 is connected to the sampling intake pipeline 62, and the ball valve 68 is arranged on the calibration pipe 67.

[0066] By setting the calibration tube 67 and the ball valve 68, after the deuterium gas concentration analyzer 61 has been used for a period of time, the full-scale calibration gas is introduced into the calibration tube 67 through the ball valve 68 and enters the deuterium gas concentration analyzer 61 through the calibration tube 67 to perform full-scale calibration on the deuterium gas concentration analyzer 61.

[0067] In the present invention, the optical fiber deuterium gas processing device further includes a main pipeline 7. The main pipeline 7 is connected to the other ends of the first fixed pipes 14 of the three processing box assemblies 1, and the deuterium gas connecting pipe 22 is connected to the box body 11 through the main pipeline 7, the nitrogen gas connecting pipe 32 is connected to the box body 11 through the main pipeline 7, the air extraction pipe 42 is connected to the box body 11 through the main pipeline 7, and the air pipeline 51 is connected to the box body 11 through the main pipeline 7.

[0068] In the present invention, the optical fiber deuterium gas processing device further includes a pressure sensor 8 for detecting the gas pressure inside the box body 11.

[0069] Among them, the pressure sensor 8 is a barometric pressure sensor. The barometric pressure sensor is arranged on the main pipeline 7, and by opening the corresponding fifth valve 16 in the processing box assembly 1, the air pressure inside the corresponding box body 11 is detected respectively.

[0070] In this embodiment, the deuterium gas processing system further includes a ramp assembly 9. The ramp assembly 9 includes a fixing plate 91, a ramp plate 92 and a second linear driving member 93. The top side of the fixing plate 91 is an inclined surface, and the height of the inclined surface continuously increases in the direction close to the box body 11. A fixing groove is opened at the top of the side of the fixing plate 91 close to the box body 11. The fixing groove has a first side wall arranged opposite to the box body 11. One side of the ramp plate 92 is rotatably arranged in the fixing groove and is arranged on the side of the first side wall close to the box body 11. The second linear driving member 93 is arranged below the ramp plate 92. The fixed end of the second linear driving member 93 is hinged to the fixing plate 91, and the output shaft is hinged to the ramp plate 92.

[0071] Among them, the number of the second linear driving members 93 can be one, two, three, etc. Specifically, the number of the second linear driving members 93 is three, and the three second linear driving members 93 are parallel to each other and arranged at intervals.

[0072] In this embodiment, the ramp plate 92 is provided with a notch opposite to the three locking members 13 located at the bottom of the box body 11.

[0073] Among them, a through groove is opened on the inner wall of the bottom of the fixing groove, and the through groove penetrates through the fixing plate 91. The second linear driving member 93 can be a cylinder, a hydraulic cylinder, an electric push rod, etc. In this embodiment, the second linear driving member 93 is a cylinder, and the cylinder body of the second linear driving member 93 is hinged to the inner wall of the through groove. The type of the second linear driving member 93 is not limited to this.

[0074] The present invention also provides an optical fiber processing technology, including the following steps:

[0075] (1) Open the box door 12, send the optical fiber to be processed into the box body 11, and then close the box door 12;

[0076] (2) Start the first linear drive 133, and the output shaft of the first linear drive 133 pushes the clamping block 132 to clamp the side of the box door 12 away from the box body 11;

[0077] (3) Start the vacuum pumping assembly 4, pump the box body 11 to vacuum and maintain the pressure for a period of time;

[0078] (4) Open the second valve 34 for a period of time, and then start the vacuum pumping assembly 4 to pump the box body 11 to vacuum again;

[0079] (5) Open the first valve 24 and the second valve 34, and control the ratio of deuterium gas and nitrogen gas entering the box body 11 through the first flow meter 23 and the second flow meter 33, so that the gas pressure in the box body 11 reaches the preset process treatment pressure, and start to process the optical fiber;

[0080] (6) After the processing is carried out for a preset time, start the vacuum pumping assembly 4 to pump the box body 11 to vacuum again, then close the vacuum pumping assembly 4 and open the stop valve 52. After a period of time, start the first linear drive 133, and the output shaft of the first linear drive 133 retracts, so that the clamping block 132 releases the box door 12, and then open the box door 12 to take out the optical fiber.

[0081] In this embodiment, the optical fiber deuterium gas treatment process includes the following steps:

[0082] (1) Open the box door 12, start the second linear drive 93, and the output shaft of the second linear drive 93 extends outwards, so that the slope plate 92 tilts until the slope plate 92 is parallel to the top side of the fixed plate 91, and then push the trolley loaded with the optical fiber reel into the box body 11 through the inclined fixed plate 91 and slope plate 92;

[0083] (2) Start the second linear drive 93, and the output shaft of the second linear drive 93 retracts, so that the slope plate 92 assembly rotates to the horizontal.

[0084] Avoid interference between the slope plate 92 and the box door 12.

[0085] (3) Then close the box door 12.

[0086] (4) Start the first linear drive 133, and the output shaft of the first linear drive 133 pushes the clamping block 132 to clamp the side of the box door 12 away from the box body 11;

[0087] (5) Adjust the second pressure regulating valve 35 so that the second pressure gauge 36 reaches the preset value;

[0088] (6) Adjust the first pressure regulating valve 25 so that the first pressure gauge 26 reaches a preset value;

[0089] (7) Open the fourth valve 63, adjust the needle valve 65, and control the third flowmeter 66 so that the sampling flow rate is a preset value;

[0090] Specifically, adjust the sampling flow rate of the third flowmeter 66 to 250 sccm.

[0091] (8) Open the third valve 43, start the vacuum pump 41, evacuate the box body 11 to vacuum and maintain the pressure for a period of time, and then detect the internal pressure of the box body 11 through the pressure sensor 8 to check the airtightness of the box body 11;

[0092] Among them, open the third valve 43 before starting the vacuum pump 41, and close the third valve 43 after turning off the vacuum pump 41.

[0093] (9) Open the second valve 34. When the pressure sensor 8 detects that the box body 11 reaches a certain pressure, close the second valve 34, start the vacuum pump 41 to evacuate the box body 11 to vacuum and close the third valve 43;

[0094] Let nitrogen enter the box body 11 by opening the second valve 34. After filling the box body 11 with nitrogen to a certain pressure, start the vacuum pump 41 to evacuate the inside of the box body 11 into vacuum, and replace the air inside the box body 11 completely.

[0095] (10) Open the first valve 24 and the second valve 34, and control the ratio of deuterium gas and nitrogen gas entering the box body 11 through the first flowmeter 23 and the second flowmeter 33, so that the gas pressure inside the box body 11 reaches the preset process treatment pressure, and start to process the optical fiber;

[0096] (11) After the processing is carried out for a preset time, detect the deuterium gas concentration through the deuterium gas concentration analyzer 61, and detect the pressure through the pressure sensor 8 during the processing. When the pressure drops and exceeds the process allowable deviation range or the deuterium gas concentration exceeds the deviation range, open the first valve 24 and the second valve 34, and control the air replenishment ratio of deuterium gas and nitrogen gas entering the box body 11 through the first flowmeter 23 and the second flowmeter 33, so that the gas pressure inside the box body 11 maintains the preset process treatment pressure;

[0097] (12) After the optical fiber is processed for a preset time, open the third valve 43, start the vacuum pump 41, and evacuate the box body 11 to vacuum;

[0098] (13) Open the stop valve 52 to balance the air pressure inside the box body;

[0099] (14) When the air pressure inside the box body 11 detected by the pressure sensor 8 is consistent with the ambient air pressure, the first linear driving member 133 is activated, so that the output shaft of the first linear driving member 133 retracts. The output shaft of the first linear driving member 133 drives the clamping block 132, the clamping head 131, and the connecting block 136 to rotate away from the box door 12, and then the box door 12 is rotated to open the box body 11.

[0100] (15) The second linear driving member 93 is activated, and the output shaft of the second linear driving member 93 extends outwards, so that the slope plate 92 is inclined until the slope plate 92 is parallel to the top side of the fixing plate 91, and then the trolley loaded with the optical fiber reel is pushed out of the box body 11 through the inclined fixing plate 91 and the slope plate 92;

[0101] (16) The second linear driving member 93 is activated, and the output shaft of the second linear driving member 93 retracts, so that the slope plate 92 assembly rotates to the horizontal.

[0102] By opening the cut-off valve 52, since the gas in the box body 11 communicates with the outside air through the air pipeline 51, the air pressure in the box body 11 can be balanced, which is convenient for taking out the optical fiber in the box body 11.

[0103] In this embodiment, in step (11), the calculation method for the ratio of the flow rates of deuterium gas and nitrogen gas entering the box body 11 is as follows:

[0104] Let the deuterium gas ratio flow rate be μ (D) and the volume be V (D) and the pressure be P (D) , the nitrogen gas ratio flow rate be μ (N) and the volume be V (N) and the pressure be P (N) , the deuterium gas process ratio concentration be X%, the full-scale flow rate of the first flowmeter 23 be ν (D) , the full-scale flow rate of the second flowmeter 33 be ν (N) , the vacuum pressure P0 inside the box body 11 when filling the deuterium gas and nitrogen gas mixture, and the pressure P1 inside the box body 11 when filling the deuterium gas and nitrogen gas mixture ends;

[0105] The calculation formulas for the deuterium gas and nitrogen gas ratio flow rates are as follows:

[0106]

[0107] When the box body 11 is filled with the deuterium gas and nitrogen gas mixture, the ratio of the deuterium gas and nitrogen gas ratio flow rates is equal to the ratio of their filled volumes, and also equal to the ratio of their filled pressures.

[0108] Because the inside of the box body 11 is not absolutely vacuum before gas mixing, there are residual gases. Moreover, the larger the volume of the box body 11, the lower the vacuum degree it can withstand, and the more residual gases there are during vacuum pumping and replacement. The greater the impact on the deuterium concentration after gas mixing. In an ideal state, when evacuating and replacing the inside of the box body 11 in step (9), if the vacuum pumping pressure P0 reaches the absolute pressure of 0, there will be no residual gases in the box body 11. However, due to the pressure bearing capacity of the box body 11 and the performance of the vacuum pump 41 itself, it is impossible to reach absolute vacuum inside the box body 11 during vacuum pumping and replacement. Therefore, when calculating the ratio of deuterium and nitrogen flow rates, the influence of residual gases on the deuterium concentration after gas mixing should be subtracted. According to the formula in step (11), the deuterium and nitrogen mixed gas is filled into the box body 11. After reaching the process treatment pressure P1, the deuterium concentration in the box body 11 can be accurately controlled at the process ratio concentration X% set by the operator.

[0109] In this embodiment, the optical fiber deuterium treatment process further includes the following steps:

[0110] When the pressure sensor 8 detects that the internal air pressure of the box body 11 drops beyond the allowable consumption range of the process, the first valve 24 and the second valve 34 are opened, and the first flowmeter 23 and the second flowmeter 33 replenish the deuterium and nitrogen mixed gas according to the deuterium process ratio concentration X%. When the box body 11 replenishes the deuterium and nitrogen mixed gas, the deuterium and nitrogen ratio concentration is calculated according to the following formula:

[0111]

[0112] After the deuterium and nitrogen are mixed and enter the process treatment stage, which is affected by the quality of the optical fiber product, the deuterium inside the box body 11 may be consumed. The consumption can be compensated by replenishing deuterium and nitrogen into the box body 11.

[0113] In this embodiment, the following steps are further included. After processing the optical fiber in one box body 11 in step (16), the fifth valve 16 and the sixth valve 17 of another box body assembly 1 are opened to process the optical fiber in the next box body assembly 1.

[0114] When taking out the optical fiber in one box body 11, the optical fiber in another box body 11 can be processed during this time, so that the box body 11 can be used alone or in combination; the pressure of deuterium can be adjusted as needed to make the pressure of deuterium meet the process requirements; the concentration of deuterium can be set as needed, and the ratio of deuterium to nitrogen is controllable, ensuring the gas mixing accuracy and reducing the gas procurement cost.

[0115] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. An optical fiber deuterium gas treatment system, characterized in that, Comprising a processing box assembly, the processing box assembly includes a box body, a box door, at least one locking member, a plurality of first reinforcing ribs and a ramp assembly. The cross-section of the box body is square, the inside of the box body is hollow and one end is open. The box door is arranged opposite to the open end of the box body and one side thereof is hinged to the box body. The locking member includes a clamping head, a clamping block and a first linear driving member. The middle of the clamping head is hinged to the box body through a first rotating shaft. The clamping block is arranged opposite to the box door and connected to one end of the clamping head. The first linear driving member is fixed to the box body and its output shaft is hinged to the other end of the clamping head through a second rotating shaft, for pushing the clamping head to rotate relative to the box body, so that the clamping block clamps the end of the box door away from the box body; The processing box assembly further includes a plurality of first reinforcing ribs, and the first reinforcing ribs are connected to the outer wall of the box body; The ramp assembly includes a fixing plate, a ramp plate and a second linear driving member. The top side of the fixing plate is an inclined surface, and the height of the inclined surface continuously increases along the direction close to the box body. A fixing groove is opened at the top of the side of the fixing plate close to the box body. The fixing groove has a first side wall arranged opposite to the box body. One side of the ramp plate is rotatably arranged in the fixing groove and arranged on the side of the first side wall close to the box body. The second linear driving member is arranged below the ramp plate. The fixed end of the second linear driving member is hinged to the fixing plate and the output shaft is hinged to the ramp plate; The ramp plate is provided with a notch opposite to the three locking members located at the bottom of the box body; The locking member further includes a connecting block, one end of the connecting block is hinged to the clamping head through the first rotating shaft and the other end is hinged to the box body through a third rotating shaft; The number of the locking members is multiple, and the multiple locking members are arranged at intervals along the circumference of the open end of the box body; The first reinforcing ribs cover the outer wall of the box body in a grid shape; The processing box assembly further includes a second reinforcing rib, and the second reinforcing rib is connected to the side of the box door away from the box body and covers the box door in a grid shape; The deuterium gas processing system further includes a deuterium gas assembly, a nitrogen gas assembly, a vacuum pumping assembly and an air assembly. The deuterium gas assembly includes a deuterium gas storage tank and a deuterium gas connecting pipe. The two ends of the deuterium gas connecting pipe are respectively communicated with the deuterium gas storage tank and the box body. The nitrogen gas assembly includes a nitrogen gas storage tank and a nitrogen gas connecting pipe. The two ends of the nitrogen gas connecting pipe are respectively communicated with the nitrogen gas storage tank and the box body. The intake end of the vacuum pumping assembly is communicated with the box body. The air assembly includes an air pipeline, and the air pipeline is communicated with the box body; The deuterium gas assembly further includes a first flowmeter and a first valve. Both the first flowmeter and the first valve are arranged on the deuterium gas connecting pipe. The nitrogen gas assembly further includes a second flowmeter and a second valve. Both the second flowmeter and the second valve are arranged on the nitrogen gas connecting pipe. The air assembly further includes a stop valve, and the stop valve is arranged on the air pipeline.

2. An optical fiber processing technology, characterized in that, It is carried out by using the optical fiber deuterium gas processing system as described in claim 1, including the following steps: (1) Open the cabinet door, feed the optical fiber to be processed into the cabinet, and then close the cabinet door; (2) Start the first linear drive, and the output shaft of the first linear drive pushes the clamping block to clamp the side of the cabinet door away from the cabinet; (3) Start the vacuum pumping assembly, pump the cabinet to vacuum and maintain the pressure for a period of time; (4) Open the second valve for a period of time, and then start the vacuum pumping assembly to pump the cabinet to vacuum again; (5) Open the first valve and the second valve, and control the ratio of deuterium gas and nitrogen gas entering the cabinet through the first flowmeter and the second flowmeter, so that the gas pressure in the cabinet reaches the preset process treatment pressure, and start to process the optical fiber; (6) After the processing is carried out for a preset time, start the vacuum pumping assembly to pump the cabinet to vacuum again, then close the vacuum pumping assembly and open the stop valve. After a period of time, start the first linear drive, and the output shaft of the first linear drive retracts, so that the clamping block loosens the cabinet door, and then open the cabinet door to take out the optical fiber.

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