CN-122024454-A - Hot processing early warning system for preparing quartz glass device

CN122024454ACN 122024454 ACN122024454 ACN 122024454ACN-122024454-A

Abstract

The invention relates to the technical field of quartz glass thermal processing, in particular to a thermal processing early warning system for preparing a quartz glass device, which comprises a temperature analysis module, a stretching module and a verticality analysis module, wherein the temperature analysis module is used for acquiring an actual temperature difference value between a temperature change area detection point and a constant temperature area of a quartz glass tube heated to a preset temperature to judge whether temperature control is qualified or not based on the actual temperature difference value, the stretching module is used for stretching the quartz glass tube according to a preset stretching speed in combination with a temperature deviation rate based on a judging result of unqualified temperature control, and the verticality analysis module is used for acquiring image data in the stretching process of the quartz glass tube to determine the actual verticality and determining a regulation strategy of air floatation pressure according to the relation between the actual verticality and the critical verticality. The invention can be used for carrying out early warning on abnormal conditions in a plurality of single directions in the processing process of the shrinkage tube and comprehensive processing condition degradation, and improves the accuracy of early warning.

Inventors

ZHANG HAIJUN
XIN KUN
GUO ZHONGREN
WANG HAILIANG
ZHANG YUAN
ZHANG YE
XU XIUJIE
SUN XIAONAN
LEI YANG
YANG YANG

Assignees

锦州市士成新材料有限公司

Dates

Publication Date: 20260512
Application Date: 20260410

Claims (10)

1. A thermal processing early warning system for preparing a quartz glass device is characterized by comprising, The temperature analysis module is used for acquiring an actual temperature difference value between a temperature change area detection point and a constant temperature area of the quartz glass tube heated to a preset temperature so as to judge whether the temperature control is qualified or not based on the actual temperature difference value; A stretching module for stretching the quartz glass tube in accordance with a temperature deviation rate in combination with a preset stretching speed based on a judgment result of disqualification of the temperature control, wherein the temperature deviation rate is determined based on an intermediate value of the actual temperature difference value and a preset temperature difference range; The perpendicularity analysis module is used for acquiring image data in the process of stretching the quartz glass tube to determine actual perpendicularity, and determining a regulation strategy of air floatation pressure intensity according to the relation between the actual perpendicularity and the critical perpendicularity; the diameter analysis module is used for acquiring a diameter change value in the process of stretching the quartz glass tube, and determining to regulate and control the stretching speed according to a first regulation rate according to the relation that the diameter change value is smaller than or equal to a critical change value, wherein the first regulation rate is determined according to a diameter deviation rate; An integrated analysis module for adjusting the first adjustment rate according to the evaluation index excess value based on the hot working failure determination result, and redetermining the weight corresponding to each parameter, Each parameter comprises a temperature difference deviation rate, a diameter deviation rate and a perpendicularity deviation rate; the disqualification judging result is determined based on the obtained parameters and the comprehensive evaluation index constructed by the corresponding weights; and the evaluation index exceeding value is determined according to the comprehensive evaluation index and a preset evaluation index.
2. The thermal processing warning system for producing a silica glass device according to claim 1, wherein, And the temperature analysis module responds that the actual temperature difference value does not belong to the preset temperature difference range, and determines the temperature control strategy of the quartz glass tube as the subsequent preset temperature according to the relation that the actual temperature difference value belongs to the critical temperature difference range.
3. The thermal processing warning system for producing a silica glass device according to claim 2, characterized in that, And the temperature analysis module is used for determining that the temperature control strategy of the quartz glass tube is that the quartz glass tube is heated again according to the redetermined preset temperature after being cooled in response to the relation that the actual temperature difference value does not belong to the critical temperature difference range, and sending out an alarm signal.
4. The thermal processing warning system for producing a silica glass device according to claim 1, wherein, The perpendicularity analysis module is used for responding to the fact that the actual perpendicularity is larger than the preset perpendicularity, and determining a regulation strategy of the air floatation pressure according to the fact that the actual perpendicularity is smaller than or equal to the critical perpendicularity, wherein the first exceeding value is determined according to the fact that the actual perpendicularity is smaller than or equal to the preset perpendicularity.
5. The thermal processing warning system for producing a silica glass device according to claim 4, wherein, The perpendicularity analysis module is used for determining a regulation strategy of the air floatation pressure intensity according to a relation that the actual perpendicularity is larger than the critical perpendicularity, regulating the air floatation pressure intensity according to a second exceeding value and sending out an alarm signal, wherein the second exceeding value is determined according to the actual perpendicularity and the critical perpendicularity.
6. The thermal processing warning system for producing a quartz glass device of claim 5, further comprising: the air floatation supporting module is positioned at the lower part of the quartz glass tube and used for supporting the position to be stretched of the quartz glass tube at a preset air floatation pressure, and responds to the air floatation pressure to determine the regulation direction of the air floatation pressure according to the bending direction of the quartz glass tube.
7. The thermal processing warning system for producing a silica glass device according to claim 1, wherein, The diameter analysis module responds to the fact that the diameter change value is larger than a preset change value, so that the stretching speed is determined to be regulated and controlled according to a second regulation rate according to the relation that the diameter change value is larger than a critical change value, and an alarm signal is sent out, wherein the second regulation rate is determined according to the diameter deviation rate.
8. The thermal processing warning system for producing a silica glass device according to claim 1, wherein, And the comprehensive analysis module is used for responding to the weight corresponding to each parameter, and regulating and controlling the weight value corresponding to the parameter with the largest deviation degree and the parameter with the smallest deviation degree in the parameters according to the preset weight regulating value.
9. The thermal processing warning system for producing a silica glass device according to claim 1, wherein, The comprehensive analysis module is empty based on the temperature difference deviation rate, the diameter deviation rate and the perpendicularity deviation rate, so that the preset stretching speed increase is regulated and controlled according to a speed correction value corresponding to the initial stretching speed, wherein the speed correction value is positively related to the initial stretching speed.
10. The thermal processing warning system for producing a silica glass device of claim 1, wherein the integrated analysis module is responsive to adjusting the first adjustment rate in accordance with the parameter overrun, the first adjustment rate being positively correlated with the parameter overrun.

Description

Hot processing early warning system for preparing quartz glass device Technical Field The invention relates to the technical field of quartz glass hot working, in particular to a hot working early warning system for preparing a quartz glass device. Background The quartz glass tube shrinkage tube is a precise thermal processing forming process, the quartz glass tube is enabled to reach a viscoplastic state through local heating, axial stretching force is applied to achieve tube diameter shrinkage, the quartz glass tube shrinkage tube is commonly used for preparing precise devices such as an arc tube and an optical fiber preform, a fixed temperature heating shrinkage tube section is usually adopted to reach the same temperature in the traditional process, shrinkage tube processing is carried out through stretching deformation, when multiple continuous long-distance shrinkage tube processing is needed, due to the influences of multiple factors such as temperature, stretching speed and deformation of the quartz glass tube, the yield of shrinkage tube processing products without size mutation is low, and targeted automatic regulation and early warning cannot be carried out aiming at the abnormality of the thermal processing process. CN119781359a discloses an optical glass production and processing monitoring system based on the internet of things technology, which relates to the technical field of optical glass production and monitoring and comprises an internet of things data acquisition unit, a data processing analyzer unit, an intelligent monitoring and early warning unit, a user interaction control screen unit and a rights manager unit. The system can predict the future production trend by collecting key parameter data in the production and processing process in real time through the data collector component of the Internet of things, carrying out real-time processing and analysis by utilizing the big data processing engine and the intelligent learning algorithm library of the machine and combining historical data to construct a prediction algorithm, and can scan and calculate one by one according to each time period in the production period, so that the predicted production quantity or production trend of each time point in the whole production period is obtained, the production efficiency and quality control are improved, and the intelligent management and optimization of the production process are realized through the self-adaptive learning and fault prediction functions. Therefore, the optical glass production and processing monitoring system based on the Internet of things technology has the following problems that the early warning of abnormal conditions and the early warning of comprehensive processing condition degradation in a plurality of single directions in the pipe shrinkage processing process cannot be achieved, and the early warning accuracy is improved. Disclosure of Invention Therefore, the invention provides a hot processing early warning system for preparing a quartz glass device, which is used for solving the problems that the early warning system cannot be used for early warning abnormal conditions and comprehensive early warning degradation of processing conditions in a plurality of single directions in the processing process of a shrinkage tube in the prior art and improving the accuracy of early warning. In order to achieve the above object, the present invention provides a thermal processing early warning system for manufacturing a quartz glass device, comprising, The temperature analysis module is used for acquiring an actual temperature difference value between a temperature change area detection point and a constant temperature area of the quartz glass tube heated to a preset temperature so as to judge whether the temperature control is qualified or not based on the actual temperature difference value; A stretching module for stretching the quartz glass tube in accordance with a temperature deviation rate in combination with a preset stretching speed based on a judgment result of disqualification of the temperature control, wherein the temperature deviation rate is determined based on an intermediate value of the actual temperature difference value and a preset temperature difference range; The perpendicularity analysis module is used for acquiring image data in the process of stretching the quartz glass tube to determine actual perpendicularity, and determining a regulation strategy of air floatation pressure intensity according to the relation between the actual perpendicularity and the critical perpendicularity; the diameter analysis module is used for acquiring a diameter change value in the process of stretching the quartz glass tube, and determining to regulate and control the stretching speed according to a first regulation rate according to the relation that the diameter change value is smaller than or equal to a critical change value, wherein the first regulation rate is