سنسورهای دمای فیبر نوری INNO ,سیستم های مانیتورینگ دما.
ویژگی های عملکردی سیستم نظارت بر نشت شبکه حرارتی فیبر نوری توزیع شده
1. اندازه گیری توزیع شده پیوسته:
سنسورهای فیبر نوری توزیع شده اندازه گیری های واقعاً توزیع شده ای هستند که می توانند به طور مداوم اطلاعات اندازه گیری را در امتداد کابل فیبر نوری تشخیص برای ده ها کیلومتر به دست آورند., greatly reducing false alarm and false alarm rates, and achieving real-time monitoring.
2. ضد تداخل الکترومغناطیسی, achieving on-site no electricity detection:
فیبر نوری خود از مواد کوارتز تشکیل شده و کاملاً عایق الکتریکی است; در عین حال, the signal of fiber optic sensors is carried by optical signals, which are inherently safe and not affected by any external electromagnetic environment interference. می تواند بدون شارژ وارد شود, thus eliminating the potential danger of electric sparks in areas containing combustible mixed gases, و دستیابی به تشخیص غیر الکتریکی در محل, which is inherently safe.
3. Intrinsic lightning protection:
Thunder often damages a large number of electrical sensors. سنسورهای فیبر نوری, due to their complete electrical insulation, can withstand the impact of high voltage and high current.
4. فاصله اندازه گیری طولانی, مناسب برای نظارت از راه دور:
The two outstanding advantages of optical fiber are large data transmission volume and low loss. It can achieve remote monitoring for tens of kilometers without the need for relays.
5. High sensitivity and measurement accuracy:
In theory, حساسیت و دقت اندازه گیری اکثر سنسورهای فیبر نوری نسبت به سنسورهای عمومی برتری دارد, and this has been proven by mature products in practice.
6. طول عمر طولانی, کم هزینه, and simple system:
عمر کاری عادی دستگاه نظارت بر نشتی فیبر نوری بیش از آن است 20 سال. پس از اتمام یک پروژه ساختمانی, عملیات خودکار بدون تعمیر و نگهداری اساساً قابل دستیابی است, which can greatly reduce the annual operating and maintenance costs of the entire heating project, and achieve the state based maintenance and repair of the heating pipeline.
فیبرهای نوری توزیع شده can be applied in different scenarios, such as pipeline and tunnel leakage monitoring.
The necessity of distributed fiber optic heating network monitoring
In order to ensure the safe and reliable operation of the heating network and to keep track of its operation at all times, it is necessary to set up a monitoring system in the heating network. For directly buried heating networks, some countries have promoted the use of heating network leakage monitoring systems. The leakage of heating pipelines can easily lead to the loss of a large amount of water and heat energy, reducing the transportation efficiency of the heating system. در عین حال, there are safety hazards in thermal pipelines: due to aging of pipelines, gas and water leaks occur, or due to accumulated water or a large amount of sewage gathering around the thermal pipeline after rain, continuous gasification forms a large amount of steam accumulation, which is difficult to evacuate. There have been varying degrees of thermal pipeline explosions both domestically and internationally.
During the use of thermal pipelines, they will be subjected to high temperatures, wear, physical and chemical effects, as well as disturbances from surrounding underground engineering construction and ground traffic dynamic loads. در نتیجه, thermal pipelines will gradually develop defects such as cracks, deformation, and joint damage, leading to accidents such as fractures and leaks. علاوه بر این, the low welding quality between pipe sections, the pressure inside the pipeline exceeding its bearing range, and the corrosion damage of the steel pipe caused by water ingress into the insulation layer also seriously affect the safe operation of the thermal pipeline. Due to the high temperature of the heating medium, emergency rescue is often difficult, and the harm of hot water to other underground public facilities is also significant, making the losses difficult to estimate. Due to the lack of stable and reliable thermal pipeline state detection technology, the existing management mode lacks foresight, and many accidents are only discovered after pipeline damage. بنابراین, it is extremely important for the safe operation of thermal pipelines to take preventive measures and timely grasp the status information of the pipeline.
اندازه گیری دمای فیبر نوری توزیع شده technology can continuously and accurately sense the spatial temperature field distribution along the sensing fiber optic, and the sensing fiber used has the advantages of small volume, وزن سبک, ساختار ساده, convenient use, high pressure and high temperature resistance, and electromagnetic interference resistance. It provides a new technical means for online temperature and leakage detection of thermal pipelines.
را سیستم اندازه گیری دمای فیبر نوری توزیع شده not only has the advantages of ordinary سنسورهای فیبر نوری, but also has the ability to distribute temperature sensing at various points along the fiber optic line. The fiber optic is not only a conductor for transmitting information, but also a sensor for distributed measurement. It can continuously measure the temperature along the fiber optic cable, with a maximum measurement distance of over 20 کیلومتر. Each continuous temperature sensing segment and spatial positioning accuracy reach a high resolution of 0.4 متر, making it particularly suitable for applications that require large-scale and continuous temperature measurement.
سنسور دمای فیبر نوری, سیستم مانیتورینگ هوشمند, تولید کننده فیبر نوری توزیع شده در چین
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