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Industry Information
Explosion-proof thermocouple design
2012-4-9 10:06:59

、热电阻作为温度测量和控制的传感器与显示仪表配套,以直接测量和控制生产过程中的气体、液体和蒸汽的温度。 Industrial explosion-proof thermocouples and thermal resistors are used as temperature measurement and control sensors and display instruments to directly measure and control the temperature of gas, liquid and steam in the production process. The explosion-proof performance of the explosion-proof thermocouples and thermal resistance products produced by our factory is designed and manufactured according to the "explosion-proof electrical equipment for explosive environments" promulgated by the country. The thermoelectric characteristics conform to the international IEC standards and passed the test of the national instrument and instrument explosion-proof safety supervision station . Explosion-proof thermocouple, the structure, principle and assembly method of the thermal resistance are basically the same, the main difference is that the explosion-proof product junction box (shell) is designed by die-casting high-strength aluminum alloy, and has sufficient internal space and wall thickness. And mechanical strength, the thermal stability of the rubber seal ring meets national explosion-proof standards. Therefore, when the explosive mixed gas inside the junction box explodes, its internal pressure will not damage the junction box, and the thermal energy generated by it will not be able to diffuse outward--transmission explosion. As long as the user strictly adheres to the product usage rules, the product can achieve a reliable explosion-proof effect.

特点:多种防爆形式,防爆性能好;压簧式感温元件,抗振性能好;测温范围大;机械强度高,耐压性能好;防爆热电偶是利用间隙隔爆原理,设计具有足够强度的接线盒等部件,将所有会产生火花,电弧和危险温度的零部件都密封在接线盒腔内,当腔内发生爆炸时,能通过接合面间隙熄火和冷却,使爆炸后的火焰和温度传不到腔外,从而进行隔爆。 Explosion-proof thermocouple characteristics: multiple explosion-proof forms, good explosion-proof performance; compression spring-type temperature-sensing element, good vibration resistance; large temperature measurement range; high mechanical strength, good pressure resistance; explosion-proof thermocouples use the principle of gap explosion-proof , Design the junction box and other components with sufficient strength, and seal all parts that will generate sparks, arcs and dangerous temperatures in the junction box cavity. When an explosion occurs in the cavity, it can be extinguished and cooled through the gap of the joint surface to make the explosion. After the flame and temperature can not be transmitted outside the cavity, thereby explosion-proof.

合适消费现场存在易燃易爆化合物,须同时测量多个位置或位置的多处丈量。 The explosion-proof thermocouples produced by our company are suitable for the consumption of flammable and explosive compounds on the scene, and must be measured at multiple locations or at multiple locations. It is widely used in petrochemical distillation tower installation. Industrial explosion-proof thermocouple is a kind of temperature sensor. It is widely used in the chemical industry automatic control system. Through the temperature sensor, the temperature parameter of the control object can be converted into an electrical signal and transmitted to the display, record and conditioning instrument. Detection, conditioning and control. In chemical plants, consumer sites are often accompanied by a variety of flammable, explosive and other chemical gases and steam. If ordinary thermocouples are very unsafe, they can easily cause environmental gas explosions. Therefore, it is necessary to use flameproof thermocouples as temperature sensors in these places. Flameproof thermocouple products produced by Jiangsu Meant Automation Instrument Co., Ltd. are suitable for use in places with a risk of explosive gas in the temperature range of dⅡCT6.