The utility model content
Thereby the utility model purpose is exactly to propose a kind of deuterium gas that can directly carry out at the factory scene to be mixed convenient and to realize efficiently optical fiber is handled to reduce the equipment of optical fiber hydrogen-sensitivity in order to overcome the deficiencies in the prior art.
In order to reach the foregoing invention purpose, the technical solution of the utility model is: a kind of online deuterium nitrogen that is used to reduce optical fiber hydrogen-sensitivity equipment that is mixed, and it comprises,
The nitrogen feedway; The deuterium air feed system;
Variable proportioning gas mixing device, described variable proportioning gas mixing utensil has two air inlets, described nitrogen feedway, deuterium air feed system are connected by pipeline with two air inlets of blender, and described blender also is provided with the flowmeter that is used to measure and control deuterium gas and nitrogen air inflow;
Surge tank, it is connected with the blender pipeline, surge tank is used to store the deuterium nitrogen mixed gas that is made into through blender, and described surge tank is provided with deuterium gas concentration analyzer, described deuterium gas concentration analyzer is used for analyzing gaseous mixture deuterium gas concentration, and with the signal back blender of collecting, to carry out the fine setting of gaseous mixture;
The pipeline pressure reducer, it is connected by pipeline with surge tank, and described pipeline pressure reducer is used for the pressure of the deuterium nitrogen mixed gas of surge tank conveying is adjusted to operating pressure;
The optical fiber processing jar, the outlet that it has the pure nitrogen gas inlet that is connected with described nitrogen feedway appendix, the deuterium nitrogen mixed gas inlet that is connected with described pipeline pressure reducer appendix and is used for the deuterium nitrogen mixed gas is extracted out, described optical fiber processing jar also is provided with vacuum line and vavuum pump.
Because the utilization of technique scheme, the utility model compared with prior art has following advantage: the utility model provides a kind of to carry out the process unit that deuterium gas is mixed optical fiber is handled at the factory scene, simplified the complicated process of buying the deuterium nitrogen mixture gas, greatly reduce the be mixed cost of gas of deuterium/nitrogen, thereby reduced deuterium gas disposal cost, reached the purpose that finally reduces production costs.
Description of drawings
Accompanying drawing 1 is the utility model device structure schematic diagram;
Accompanying drawing 2 carries out the flow chart of optical fiber processing for adopting the utility model equipment;
Accompanying drawing 3 is the structural representation of the process tank of the utility model employing;
Wherein: 1, nitrogen feedway 11, liquid nitrogen storage tank; 12, gasifier 13, air pressure reducer; 2, deuterium air feed system 21, deuterium air-capacitor receive jars 22, pressure reducer 3, blender 4, surge tank 5, pipeline pressure reducer 6, optical fiber processing jar 61, pure nitrogen gas inlet 62, deuterium nitrogen mixed gas inlet 63, outlet;
The specific embodiment
Below in conjunction with accompanying drawing the utility model preferred embodiment is elaborated:
A kind of equipment schematic diagram of Fig. 1 for implementing according to the technical solution of the utility model, this equipment comprises nitrogen feedway 1, deuterium air feed system 2, blender 3, surge tank 4, pipeline decompression jar 5 and optical fiber processing jar 6, mainly be connected by pipeline between above-mentioned each device, concrete structure is described as follows:
Nitrogen feedway 1 comprises liquid nitrogen storage tank 11 respectively, and it is used to store liquid nitrogen; Air-heating type gasifier 12 is used to the liquid nitrogen that gasifies; Air pressure reducer 13 is used to control gas pressure; Above-mentioned liquid nitrogen storage tank 11 is connected by pipeline 71 with gasifier 12, and gasifier 12 is connected by pipeline 72 with air pressure reducer 13, and air pressure reducer 13 is connected with blender 3 one air inlets by pipeline 73.
Deuterium air feed system 2 comprises that the deuterium air-capacitor that is used to hold deuterium gas receives jars 21 and the pressure reducer 22 that is used to control the deuterium atmospheric pressure, and deuterium air feed system 2 is connected with another air inlet of blender 3 by pipeline 78.
Blender 3 is a variable proportioning gas mixer, and blender 3 is furnished with flowmeter, is used to control deuterium gas and nitrogen flow, and it also is furnished with mixed valve of band percentage and accurate adjusting knob, can realize stepless mixing adjusting.
The gas buffer jar 4 that is mixed is connected with blender 3 gas outlets by pipeline 74, enters in the surge tank 4 through blender 3 mixed deuterium nitrogen mixed gas to store, and the volume of described surge tank 4 is 0.5m
3~2m
3, in the present embodiment, the volume of surge tank is 1m
3, surge tank is used to guarantee the stable and precision of mist.Also be provided with deuterium gas concentration analyzer at surge tank 4 places, this concentration analyzer can adopt the analysis of thermal conductivity instrument, pass through concentration analyzer, deuterium concentration to the gaseous mixture in the surge tank is analyzed once more, and with the variable proportioning gas mixer of collecting of signal back, by this feedback information, blender 3 can be treated the mixture pressure of conveying and finely tune.
Pipeline pressure reducer 5 is connected with surge tank 4 by pipeline 75, and it is used for mist is adjusted to required operating pressure.
After mist being adjusted to the operating pressure of needs through piping pressure reducer 5, can be delivered to mist in the process tank 6 of having laid a plurality of fiber reels by pipeline 79, process tank 6 disposes vacuum line and vavuum pump, and is furnished with the vacuum display list, it also disposes flow controlling unit, is used for measuring and controlling the gas flow that is input to process tank.Simultaneously, process tank 6 also is furnished with pressure display table, and it has the function of carrying out automatic ftercompction when deuterium nitrogen mixture gas pressure descends.Process tank 6 has two-way air inlet and one tunnel gas outlet, wherein, one road air inlet be used for by pipeline 76 charge into pure nitrogen gas inlet 61, another air inlet is used for charging into deuterium nitrogen mixed gas inlet 62 by pipeline 79, outlet 63 is used to vacuumize interface and the optical fiber processing back deuterium nitrogen mixture gas outlet that finishes, as shown in Figure 3.In optical fiber processing jar 6, fiber reel can divide 13 layers of placement, and jar is interior and have removable guide rail, so that the optical fiber loading and unloading.
Simultaneously, in the present embodiment, optical fiber processing jar 6 is provided with many groups, thereby improves optical fiber processing efficient.
Specify the course of work of the present utility model below in conjunction with Fig. 1 and Fig. 2:
At first the control parameter to equipment is provided with, the optical fiber that draws moulding is positioned over sealing locking in the process tank, the vavuum pump that starts process tank 6 earlier vacuumizes tank body, after the reading of vacuum display list reaches technological requirement, charge into nitrogen to the pure nitrogen gas inlet 61 of process tank 6 by pipeline 76;
Then, open the by-pass valve control and the flowmeter of nitrogen feedway 1 and deuterium air feed system 2 simultaneously, liquid nitrogen gasifies to air-heating type gasifier 12 through pipeline 71 from liquid storage tank 11, be transferred to air pressure reducer 13 through pipeline 72 then, nitrogen pressure controlled to behind the desired value feed variable proportioning gas mixer 3 by pipeline 73; Deuterium gas is received bottle 21 and pressure reducer 22 by the deuterium air-capacitor and is fed variable proportioning gas mixer 3 through pipeline 78, directly carries out the deuterium nitrogen by adjusting control valve and flowmeter and is mixed, and arrives the pressure of setting, and stops inflation.
After deuterium gas and nitrogen are mixed certain hour, thereby utilize deuterium gas concentration analyzer to detect gas concentration and adjust deuterium gas and nitrogen amount is finely tuned mist by the accurate adjusting knob in the blender 3.
The mixed gas of the deuterium nitrogen that is mixed is entered surge tank 4 by pipeline 74 to be stored standby, when needs use, mist in the surge tank 4 is delivered to air pressure reducer 5 again, and gas regulation to be mixed fills into optical fiber processing jar 6 by pipeline 79 to required operating pressure.
Keep optical fiber processing jar 6 environmental sealings, by the pressure display table in the process tank deuterium nitrogen mixture gas is adjusted operating pressure automatically, under the pressure of regulation, keep official hour, take mist in the container away through exporting 63, be discharged into outdoor, charge into nitrogen by pipeline 76 at last, open container door, take out fiber reel.