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External vapor deposition method jet flame detecting device and method thereof

An external vapor deposition and flame detection device technology, applied in the direction of fire alarms, fire alarms, instruments, etc. which rely on radiation, can solve the problems of missed alarms and false alarms, and achieve simple structure, strong anti-interference ability, Low environmental impact

Active Publication Date: 2016-09-28
YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY
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Problems solved by technology

lead to false alarms or false negatives

Method used

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  • External vapor deposition method jet flame detecting device and method thereof
  • External vapor deposition method jet flame detecting device and method thereof
  • External vapor deposition method jet flame detecting device and method thereof

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example 1：L100mm, to pic L100mm，，。 example 2

[0021] The working process and detection method of the device of the present invention are as follows: the camera captures the real-time video signal when the blowtorch flame burns, and transmits the flame video signal to the industrial control computer 4 at the same time. After the computer receives the flame video signal, it is analyzed and processed, and the boundary 12 of the flame is described, as figure 2 shown. The computer analyzes and processes the video image of the flame in real time through the image processing module, calculates the length and projected area of ​​the flame, and displays the image and data of the flame in real time on the display screen. Compared with the length threshold, when the collected flame area or length signal exceeds the preset threshold, the computer outputs a control signal to the PLC controller, and adjusts the size of the jet flame through the flame gas control valve, or simultaneously sends a signal to the flame gas control valve an...

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Abstract

The invention relates to an external vapor deposition method jet flame detecting device and a method thereof. The external vapor deposition method jet flame detecting device comprises a bracket on which a camera is arranged. The output port of the camera is connected with an input port of a computer. The output interface of the computer is connected with a PLC controller. The PLC controller is connected with a flame gas control valve and an alarm module. The camera transmits an acquired flame video image to the computer. The computer performs storage and performs real-time analysis processing on the flame video image through an image processing module of the computer. Furthermore the computer transmits a control signal, an alarm signal and a display signal. The external vapor deposition method jet flame detecting device has advantages of simple structure, low environment influence and real-time monitoring on frame. Because the camera acquires data of the flame in a visible light acquisition manner, signal acquisition is not affected by electromagnetic interference and ambient temperature. Stable data source, high interference resistance and simple data conversion are realized. The external vapor deposition method jet flame detecting device can optimize technological parameters of a subsequent process through analyzing a flame jetting process.

Description

technical field [0001] The invention relates to a spray flame detection device and method of an external vapor deposition method, and belongs to the technical field of optical fiber preform rod processing. Background technique [0002] The external vapor deposition process in optical fiber preform processing includes axial vapor deposition method VAD (Vapour phase Axial Deposition) and external chemical vapor deposition method OVD (outside vapor deposition). Produced by a jet flame, which is generated by the combustion of a mixture of gases such as hydrogen and oxygen. In order to ensure the safety and quality of deposition processing, flame detection sensors are installed in the processing equipment of VAD and OVD. The existing flame detector obtains the flame temperature information and judges whether it is burning or not by detecting the radiated light waves generated during the flame combustion process. . [0003] Chinese patent document CN105185027A discloses a "flame...

Claims

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Application Information

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IPC IPC(8): G08B17/12
CPCG08B17/125
Inventor 周建良罗军甘霖陈俊马亮鲁戎顾立新刘善沛
Owner YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY
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