CN211367413U

CN211367413U - Solution soaking device of loose body tube based on MCVD (modified chemical vapor deposition) process special optical fiber

Info

Publication number: CN211367413U
Application number: CN201921600534.2U
Authority: CN
Inventors: 韩婷婷; 冯术娟; 张俊逸; 缪振华
Original assignee: Jiangsu Fasten Optical Communication Technology Co ltd; Jiangsu Fasten Optoelectronics Technology Co ltd; Fasten Group Co Ltd
Current assignee: JIANGSU FASTEN OPTOELECTRONICS TECHNOLOGY Co.,Ltd.
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-08-28
Anticipated expiration: 2029-09-25

Abstract

The utility model relates to a solution soaking device of a loose body tube based on MCVD (micro coaxial vacuum deposition) process special optical fibers, which comprises two switching adapters arranged at different heights, wherein the loose body tube is obliquely arranged between the two switching adapters, and the two switching adapters are respectively in corresponding sealing connection with the two ends of the loose body tube; any one of the adapter adapters comprises a body, one end of the body is provided with a positioning hole for positioning the loose tube, the body is connected and communicated with the end part of the loose tube through a clamping sleeve nut, and the clamping sleeve nut is arranged in the rolling bearing; the container that is equipped with soaking solution is connected respectively to body other end coupling hose, the hose at loose siphuncle both ends, and loose siphuncle, two hoses form the return circuit with the container that is equipped with soaking solution, are provided with the circulating pump on the return circuit, the device of the utility model is simple in structure is compact, easily installs, operates and maintains, and the solution use amount is less, reduction in production cost, and it is even to enable the solute distribution in loose siphuncle, can improve the optic fibre yield, improves production efficiency.

Description

Solution soaking device of loose body tube based on MCVD (modified chemical vapor deposition) process special optical fiber

Technical Field

The utility model relates to an optic fibre production facility especially relates to a solution soak device of loose siphuncle based on MCVD technology special type optic fibre.

Background

With the development of the optical communication industry, optical fibers, particularly optical fiber products with special functions, have been in a large number according to the change of market and user demands. In the manufacturing process of special optical fiber, different substances are required to be doped according to design requirements to realize the special functions of the special optical fiber, and the doping modes of the materials are two at present: the first method is on-line doping, namely doping materials such as POCl3, YbCl3, AlCl3 and the like and high-temperature gasified raw materials are brought into a reaction tube by carrier gas for deposition at the same time of deposition; the second method is solution doping, i.e. the doping material is dissolved in a proper solvent to be completely dissolved, then the solution is led into a loose tube made of MCVD for a period of time, and then drying and vitrification are carried out after soaking. The method I has simple process and easy control, but needs to modify the original MCVD equipment, has higher cost and poorer equipment applicability; in the second method, more solution is used in the soaking process, the production cost is higher, and the device is generally in a vertical state, so that the solute of the solution in the loose body is unevenly distributed, and the solution utilization rate is not high. Chinese patent No. CN208717167U discloses a method for controlling the liquid level height and liquid level rising speed of a solution in a loose body tube by a communicating vessel principle, which reduces the amount of the solution used and saves the doping raw material, but because the device is in a vertical state, and the solution mobility is poor, the solute is unevenly distributed in the loose body, resulting in a lower qualification rate of the finished optical rod and the subsequent optical fiber, and the utilization rate of the solution is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a rotatory soak device that is used for the loose siphuncle of MCVD technology preparation special type optic fibre of modified is provided to above-mentioned prior art, makes the solute distribute evenly in loose body to improve solution utilization ratio, reduction in production cost improves the optic fibre yield.

The utility model provides a technical scheme that above-mentioned problem adopted does: a solution soaking device for a loose body tube based on MCVD (micro chemical vapor deposition) process special optical fibers comprises two switching adapters arranged at different heights, wherein the loose body tube is obliquely arranged between the two switching adapters, and the two switching adapters are respectively and correspondingly and hermetically connected with two ends of the loose body tube; any one of the adapter adapters comprises a body, one end of the body is provided with a positioning hole for positioning the loose tube, the body is connected and communicated with the end part of the loose tube through a clamping sleeve nut, and the clamping sleeve nut is arranged in the rolling bearing; the other end of the body is connected with a hose, the hoses at the two ends of the loosening pipe are respectively connected with a container filled with a soaking solution, the loosening pipe, the two hoses and the container filled with the soaking solution form a loop, and a circulating pump is arranged on the loop.

Preferably, the body is detachably connected with the hose through a pipe joint body, the pipe joint body and the rolling bearing are fixed above the support, the support is fixed on the base, and the two switching adapters are different in height, so that the loosening pipe is inclined.

Preferably, an O-shaped sealing ring is arranged on the matching surface of the pipe joint body and the other end of the body; and the matching surface of the clamping sleeve nut and the loose body tube is provided with an O-shaped sealing ring, so that the solution leakage at the joint can be avoided.

Preferably, the belt pulley is sleeved on the body and connected with the servo motor through a belt to realize self rotation of the body.

Preferably, the rolling bearing is fixed on the bracket by a bearing cover plate and a bearing snap spring.

Preferably, the base is provided with fixing threaded holes and a plurality of positioning threaded holes with different intervals, and the bottom end of the support is matched with the positioning threaded holes for fixing the base and adjusting the distance between the supports according to the length of the loose body tube, so that the expansibility of the support is stronger.

Preferably, the vessel containing the infusion solution is placed on a magnetic stirrer to more uniformly dissolve the solute in the solution.

Preferably, the union body passes through clamp and union body coupling with the hose, the union body rotates with the body to be connected, and the rotatory fitting surface department of union body and body is provided with the sealing washer.

Compared with the prior art, the utility model has the advantages of:

1. the loosening pipe body is obliquely arranged and can rotate, and solutes can be uniformly distributed in the loosening pipe body.

2. The hose connection of being connected with loose siphuncle upper end realizes the reverse circulation of solution at the entrance of pump, improves the effect of gravity to the solute on the one hand, makes the solute distribution more even, and on the other hand can improve the utilization ratio of solution.

3. The vessel containing the solution was placed on a magnetic stirrer to further homogenize the solution flowing through.

4. The base with the threaded hole and the adapter are adopted, adjustment can be carried out according to the length and the diameter of the loose body tube, and the expansibility of the loose body tube is high.

The device of the utility model is simple in structure is compact, low in manufacturing cost, easily installation, operation and maintenance, and its expansibility is stronger, and solution use amount is less, practices thrift and mixes the raw materials, and reduction in production cost just enables the solute and distributes evenly in loose siphuncle, can improve the optic fibre yield, improves production efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the solution soaking device of the loosening body tube based on the MCVD process special optical fiber.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a partially enlarged schematic view of a portion B in fig. 1.

Fig. 4 is a top view of the base.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1, the solution soaking device for a loose tube based on MCVD process special optical fiber of this embodiment includes two adapter adapters 9 arranged at different heights, the loose tube 8 is disposed between the two adapter adapters 9, the two adapter adapters 9 are respectively connected with the loose tube 8 in a sealing manner, any adapter 9 includes a body 16, one end of the body 16 is provided with a positioning hole for positioning the loose tube 8, the body 16 is connected with the end of the loose tube 8 through a ferrule nut 17, the ferrule nut 17 is provided with a first O-shaped sealing ring 19, the ferrule nut 17 is disposed in a rolling bearing 7, the rolling bearing 7 is fixed on the bracket 3 through a bearing cover plate 10 and a bearing snap spring 18, the body 16 is provided with a belt pulley 11, the other end of the body is detachably connected with the hose 1 through a tube connector 6, the tube connector 6 is connected with the hose 1 through the ferrule 5, the pipe joint body 6 is rotatably connected with the body 16, a second O-shaped sealing ring 15 is arranged in the pipe joint body 6, the pipe joint body 6 and the rolling bearing 7 are respectively fixed on the support 4 and the support 3, the support is different in height and is used for realizing that the loose body pipe 8 is inclined, the support is fixed on the base 2, a fixing threaded hole 20 and a plurality of positioning threaded holes 21 are formed in the base, the bottom of the support is matched with the positioning threaded holes 21, the hoses 1 at the two ends of the loose body pipe 8 are respectively connected with the containers 13 filled with the soaking solution, the loose body pipe 8, the two hoses 1 and the containers 13 filled with the soaking solution form a loop, a circulating pump 12 is arranged on the loop, and the containers 13 are placed on a magnetic stirrer 14.

In actual operation, one end of the loose tube 8 passes through the clamping sleeve nut 17 of the adapter 9 and is inserted into the body 16 of the adapter 9, the clamping sleeve nut 17 is screwed, so that the loose tube 8 and the adapter 9 keep good tightness, the adapter 9 is clamped on the tube connector 6 through a second O-shaped sealing ring, the other end of the loose tube 8 is connected with the adapter and the tube connector in the same way, the hose 1 is fixed in the container 13 with the cover, the prepared doping solution is filled in the container 13 with the cover, then the switch of the magnetic stirrer 14 is unscrewed, the rotating speed is adjusted, then the switch of the small pump 12 is pressed, so that the solution passes through the hose, flows through the tube connector 6 and the adapter 9 into the loose tube, and flows back into the container 13 with the cover through the adapter, the tube connector, the hose and the small pump at the other end, and finally, opening a switch of a servo motor connected with the belt pulley 11, adjusting the rotating speed of the rolling bearing, and controlling the rotating speed of the loosening pipe by controlling the rolling bearing so as to uniformly distribute the solution in the loosening pipe. The position of the brackets at the two ends on the base 2 with the threaded hole bottom 21 can be adjusted according to the length of the loose tube 8. The dope solution is flowed in the bulk tube 8 for a certain time according to the process requirements. After the rotary soaking is finished, the servo motor of the control belt pulley 11, the small pump 12 and the magnetic stirrer 14 are sequentially switched off, so that the solution in the loosening body pipe 8 quickly flows back to the container 13 with the cover, and the rotary solution soaking of the loosening body pipe is finished.

The utility model discloses a reverse circulation of solution is realized to minipump machine, has improved the effect of gravity to the solute on the one hand, makes the distribution of solute in loose siphuncle more even, and on the other hand has also improved the utilization ratio of solution. The loose tube is obliquely arranged and is rotated through the rolling bearing, so that the solute is further uniformly distributed in the loose tube. The lid-containing vessel containing the doping solution is placed on a magnetic stirrer 14 to mix the flowing solution uniformly. The utility model discloses a base and switching adapter with screw hole can adjust according to the length and the diameter of loose siphuncle, and its expansibility is stronger. The control system realizes the control of the circulation speed of the solution and the rotation speed of the loosening body pipe through the frequency converter, the servo motor and a series of switches, so that the whole system runs stably. Compared with the prior art, the utility model, have simple structure compactness, easily installation, operation and maintenance, its expansibility is stronger, and the solution use amount is less, practices thrift and mixes the raw materials, reduction in production cost, and it is even to enable solute distribution in loose siphuncle, can improve the optic fibre yield, improves production efficiency.

In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A solution soaking device of a loose body tube based on MCVD (modified chemical vapor deposition) process special optical fibers is characterized in that: the loose body tube is obliquely arranged between the two adapter adapters, and the two adapter adapters are respectively in corresponding sealing connection with the two ends of the loose body tube; any one of the adapter adapters comprises a body, one end of the body is provided with a positioning hole for positioning the loose tube, the body is connected and communicated with the end part of the loose tube through a clamping sleeve nut, and the clamping sleeve nut is arranged in the rolling bearing; the other end of the body is connected with a hose, the hoses at the two ends of the loosening pipe are respectively connected with a container filled with a soaking solution, the loosening pipe, the two hoses and the container filled with the soaking solution form a loop, and a circulating pump is arranged on the loop.

2. The solution soaking device for the loose tube of the special optical fiber based on the MCVD process as claimed in claim 1, wherein: the body is detachably connected with the hose through the pipe joint body, the pipe joint body and the rolling bearing are fixed above the support, and the support is fixed on the base.

3. The solution soaking device for the loose tube of the special optical fiber based on the MCVD process as claimed in claim 2, wherein: an O-shaped sealing ring is arranged on the matching surface of the pipe joint body and the other end of the body; and the matching surface of the cutting sleeve nut and the loose body tube is provided with an O-shaped sealing ring.

4. The solution soaking device for the loose tube of the special optical fiber based on the MCVD process as claimed in claim 1, wherein: the belt pulley is sleeved on the body and connected with the servo motor through a belt to achieve self rotation of the body.

5. The solution soaking device for the loose tube of the special optical fiber based on the MCVD process as claimed in claim 1, wherein: the rolling bearing is fixed on the support through the bearing cover plate and the bearing clamp spring.

6. The solution soaking device for the loose tube of the special optical fiber based on the MCVD process as claimed in claim 2, wherein: the base is provided with a fixing threaded hole and a plurality of positioning threaded holes with different intervals, and the bottom end of the support is matched with the positioning threaded holes.

7. The solution soaking device for the loose tube of the special optical fiber based on the MCVD process as claimed in claim 1, wherein: the vessel containing the soaking solution was placed on a magnetic stirrer.

8. The solution soaking device for the loose tube of the special optical fiber based on the MCVD process as claimed in claim 2, wherein: the pipe connector and the hose are connected with the pipe connector through a clamp, the pipe connector is connected with the body in a rotating mode, and a sealing ring (15) is arranged at the rotating matching surface of the pipe connector and the body.