SU1723059A1 - Device for rapid cooling of optical fibers - Google Patents

Abstract

The essence of the invention: the device contains a heat-insulated outer duct. A perforated tube of heat-conducting material is installed in the center of the box with devices for the entrance and exit of optical fiber. A perforated tube is provided at the inlet and outlet with through horizontal slits. Opposite the slots there are additional boxes connected to the refrigerant suction system. 1 il.

Description

The invention relates to the manufacture of an optical fiber and can be used when cooling an optical fiber during its manufacture.

The aim of the invention is to improve the quality of the fiber by creating a laminar coolant flow in the pipe and reducing the working area of the device.

The drawing shows a diagram of a device for the rapid cooling of an optical fiber.

The device includes a heat-insulated outer duct 1, a perforated tube 2 made of heat-conducting material and installed in the center of the duct, devices 3 and 4 for the input and output of optical fiber, the refrigerant supply system 5 and the refrigerant suction system 6. A perforated pipe 2 is provided at the inlet and outlet with through horizontal slots 7, opposite which are installed box 8 connected to system 6 of the refrigerant suction.

The device for rapid cooling of the optical fiber operates as follows.

Using the refrigerant supply system 5, for example, nitrogen enters the heat-insulated outer duct 1, then through a perforated pipe 2 made of heat-conducting material, the gas is sucked into the working area of the optical fiber 9. The working fluid is sucked out through the horizontal slots 7. Intensity nitrogen suction is regulated. Horizontal slots 7 provided with ducts 8. provide directional forced suction of the refrigerant without turbulences in the fiber passage zone, which eliminates the oscillation of the optical fiber during the stretching process, and their horizontal arrangement creates the same conditions of refrigerant and air suction. The box 8 provides for a uniform vacuum behind the slits 7, which creates the same suction through any point of the slits.

WITH

with

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Yu

GO O SL U

The proposed device provides for obtaining optical fiber, non-concentricity of the core and the shell of which is less than in known devices.

Formula A

A device for rapid cooling of an optical fiber, comprising a heat-insulated outer duct, centrally mounted, a perforated tube of heat-conducting material with

methods for entering and exiting the optical fiber and the refrigerant supply and suction system, characterized in that, in order to improve the quality of the fiber by creating a laminar coolant flow in the pipe and reducing the working area in the device, the perforated pipe is made at the entrance and exit with through horizontal slits MI, opposite which are installed boxes connected to the refrigerant suction system.

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Claims (1)

FORMULA AND SECTION 5 A device for rapid cooling of an optical fiber, comprising a thermally insulated outer box, a centrally perforated 10 tube of heat-conducting material with devices for entering and exiting an optical fiber, and a refrigerant supply and suction system, characterized in that, in order to improve the quality of the fiber by creating a laminar refrigerant flow in the pipe and reducing the working area in the device, the perforated pipe is made at the inlet and outlet with through horizontal slots, opposite which getting a box connected to the suction of the refrigerant system.