An energy-saving and long-life ultraviolet curing furnace and its control method

Abstract

The invention belongs to the technical field of optical fiber production, discloses an energy-efficient long-life ultraviolet light curing oven and a control method thereof and relates to production equipment adopted in optical fiber drawing and a control method thereof, in particular to a system for improving curing efficiency and prolonging the service life of a curing component. The energy-efficient long-life ultraviolet light curing oven comprises a curing oven body, an automatic curing oven internal temperature and irradiation intensity control part and a curing shielding gas detection and control part, wherein the automatic curing oven internal temperature and irradiation intensity control part is composed of a trapezoid heat dissipation cover, a wind speed sensing controller, a temperature sensor and an ultraviolet light intensity sensor, and the curing shielding gas detection and control part is composed of a cleanliness detector, a wind speed sensing controller, an oxygen content detector and a gas valve. The curing shielding gas detection and control part is provided with the oxygen content detector to measure the content of oxygen in a quartz glass tube and feed back the oxygen content data to a PLC, and the PLC controls the gas valve automatically to adjust shielding gas inflow ratio according to oxygen content feedback parameters.

Description

technical field [0001] The present invention relates to an energy-saving and high-life ultraviolet curing furnace and its control method, which relate to a production equipment and its control method in the fiber drawing process, and specifically relate to a system for improving curing efficiency and prolonging the service life of curing components. It belongs to the technical field of optical fiber production. Background technique [0002] In the process of improving the quality of optical fiber production and upgrading technology, optical fiber coating and curing is one of the most critical links. After coating the optical fiber, the UV curing efficiency is not high, and it is prone to poor curing of the optical fiber, which will lead to problems such as a decrease in the mechanical properties of the optical fiber, poor fatigue resistance and environmental resistance, and even affect the subsequent coloring and cabling process of the optical fiber, resulting in excessive r...

AI Technical Summary

Problems solved by technology

Although the existing patented technology of curing furnace mentions the monitoring and control of optical fiber protective gas, etc., during the long-term continuous high-speed drawing process, the changes of optical fiber position, coating thickness, temperature in the curing furnace, and ultraviolet light intensity are not static

The existing technology lacks the monitoring and coordinated automatic and precise control of ultraviolet radiation intensity, furnace temperature, luminous power, etc.; the heat dissipation efficiency of the curing furnace is not high, and the uncontrollable internal temperature will not only affect the service life of the components, but also cause curing Unstable quality

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