在高低压配电柜内部,一旦发生电气故障,主要的发热源头多为电线以及保护电气接头处的物质。这些物质在受热时会分解出粒子,而对这些粒子的采集,有助于实现对高低压配电箱柜内电气故障的早期精准探测。
In the high and low voltage distribution cabinet, once an electrical failure occurs, the main source of heat is mostly the wire and the material that protects the electrical junction. These substances decompose into particles when heated, and the collection of these particles helps to achieve early and accurate detection of electrical faults in the high and low voltage distribution cabinet.
当电气故障发生时,相关物质受热分解产生粒子与气体,这里的粒子属于能以自由状态存在的最小物质构成单元。不管引发电气故障的原因是什么,其早期表征均为物体发热、粒子与气体释放以及异味产生。高低压配电柜内常见的电气故障发热体涵盖线缆、负荷开关以及保护器等。在配电柜内受热分解出的粒子以烟粒子和气体分子为主。借助激光粒子传感器对粒子进行测量,能够有效监控聚氯乙烯绝缘电缆、铅酸电池、断路器、负荷开关等各类用电设备过热分解所形成的粒子与气体浓度。如此一来,便可在视觉可见烟雾尚未出现之前及时发出警报,精准判断绝缘体发热状况,达成电气故障的极早期监控目标,真正做到防患于未然。
When an electrical failure occurs, the relevant matter is decomposed by heat to produce particles and gases, which are the smallest building blocks of matter that can exist in a free state. Regardless of the cause of the electrical failure, its early signs are heat, particle and gas release, and odor production. Common electrical faults in high and low voltage power distribution cabinets include cables, load switches, and protectors. The particles decomposed by heat in the distribution cabinet are mainly smoke particles and gas molecules. With the laser particle sensor to measure particles, can effectively monitor the PVC insulated cable, lead-acid battery, circuit breaker, load switch and other electrical equipment overheating decomposition of particles and gas concentration. In this way, the alarm can be issued in time before the visual smoke has not appeared, and the heat condition of the insulator can be accurately judged, and the very early monitoring goal of electrical faults can be achieved, and the problem can be really prevented before it happens.
MDR-PT002 极早期吸气式热解粒子探测器性能参数/Performance parameters of Very early aspirated Pyrolytic Particle Detectors
测量模式/mode:连续、定时循环(可选配)
测量粒子量程/range:1-2000ug/m3
测量误差/Error:5ug/m3
分辨率/Resolution:1ug/m3
环境温度超限告警/Temperature alarm:5-110℃ (阀值可设置)
组网方式/Networking mode:有线485通信或无线4G、LORA、以太网
工作电压/Operating voltage:AC220V或DC24V
无盲区/Non-blind area:可实现360度从内到外立体全覆盖/It can achieve full coverage of 360 degrees from inside to outside
可视化/Visualization:采用7寸触摸显示屏,粒子浓度数据曲线实时显示/Using 7 inch touch screen, the particle concentration data curve is displayed in real time
极早期/Very early:准确探测热解粒子的数量,在烟和火未出现之前,极早期发出告警信息/Accurately detect the number of pyrolytic particles and send an alarm message very early, before smoke and fire appear
抗干扰/Anti-interference:100%精准无误报,避免粉尘、强光、气流、水雾等环境因素的影响/100% accurate report, avoid dust, strong light, air flow, water fog and other environmental factors
联动输出/Linkage output:多级报警联动,可联动声光报警器、智能楼宇、消防报警主机、喷淋、摄像头等/multi-level alarm linkage, can link sound and light alarm, intelligent building, fire alarm host, spray, camera and so on
告警输出/Linkage output:多组继电器干接点/Multiple relay dry contacts
MDR-PT002 极早期吸气式热解粒子探测器性能特点/Performance characteristics of Very early aspirated Pyrolytic Particle Detector
探测:探测器通过采样方式获取空气中的气体粒子。采样方式可以是主动式或被动式,主动式是通过向空气中吹入空气流来获取气体粒子,被动式则是通过空气的自然流动来获取。Detection: The detector obtains gas particles in the air by sampling. Sampling methods can be active, where gas particles are acquired by blowing a stream of air into the air, or passive, where gas particles are acquired by the natural flow of air.
热解:探测器内部的热解装置将采集到的气体加热到高温,使其发生热解反应,进一步将气体分解成更小的分子或原子。这一步的目的是为了更好地识别和检测气体中的热解气体粒子。Pyrolysis: The pyrolysis unit inside the detector heats the collected gas to high temperatures, causing it to undergo a pyrolysis reaction, which further breaks the gas into smaller molecules or atoms. The purpose of this step is to better identify and detect pyrolytic gas particles in gases.
分析:探测器内部的成分分析仪对热解后的气体进行成分分析。通过光谱分析、色谱分析或质谱分析等技术手段,确定气体中是否存在可燃性或有毒性气体,以及其浓度。Analysis: The composition analyzer inside the detector analyzes the composition of the gas after pyrolysis. Technical means such as spectral analysis, chromatographic analysis or mass spectrometry are used to determine whether there is flammable or toxic gas in the gas, as well as its concentration.
预告警:根据成分分析的结果,探测器判断是否达到预设的预警或报警条件。如果达到预警条件,探测器会发出声光预警信号,提示可能存在火灾隐患;如果达到报警条件,探测器会发出火灾报警信号,并联动消防系统进行灭火等应急处置。Warning: According to the results of component analysis, the detector determines whether the preset warning or alarm conditions are reached. If the warning conditions are met, the detector will issue an audible and visual warning signal, indicating that there may be a fire hazard; If the alarm condition is reached, the detector will send out a fire alarm signal, and the linkage fire extinguishing system for emergency treatment.
MDR-PT002 极早期吸气式热解粒子探测器组网架构/Networking architecture of Very early aspirated Pyrolytic Particle Detector