通常和显示仪表、记录仪表、电子计算机等配套使用，直接测量生产现场存在碳氢化合物等爆炸的0～1300℃范围内的液体、蒸汽和气体介质以及固体表面温度。 Explosion-proof thermocouples are usually used in conjunction with display instruments, recording instruments, and computers to directly measure liquid, vapor, and gaseous media and solid surface temperatures in the range of 0 to 1300 ° C where hydrocarbons and other explosives are present on the production site.
Multiple explosion-proof forms, good explosion-proof performance, pressure spring-type temperature sensing element, good vibration resistance, large measurement range, high mechanical strength, and good pressure resistance
Working principle: The structure and principle of flameproof thermocouples and assembled thermocouples are basically the same. The difference is that the explosion-proof or intrinsically safe product junction box (shell) is designed with a special explosion-proof structure. The junction box is made of high-strength aluminum. The alloy is made of die-casting and has sufficient internal space, 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 resulting thermal energy cannot be diffused outward and transmitted.
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 electric signal, which is transmitted to the display, record and adjuster to implement the system. Detection, adjustment and control. In chemical plants, the production site is often accompanied by various flammable and explosive chemical gases and steam. If ordinary thermocouples are used, it is very unsafe and can easily cause environmental gas explosion. 作温度传感器，本公司生产的隔爆型热电偶产品,适用于dⅡCT6温度组别区间内的具有爆炸性气体危险的场所内。 Therefore, explosion-proof thermocouples must be used as temperature sensors in these occasions. The explosion-proof thermocouple products produced by our company are suitable for use in places with explosive gas dangers in the dⅡCT6 temperature group interval. If a closed loop is composed of two homogeneous conductors (hot electrodes) of different components, and when there is a temperature gradient at both ends, a current will flow through the loop, then there will be a thermoelectric potential between the two ends.
Utilizing the gap explosion isolation principle, design the junction box and other components with sufficient strength, and seal all the components that will produce sparks, arcs and dangerous temperatures in the junction box. When an explosion occurs in the cavity, it can be extinguished through the gap of the joint surface and Cool down so that the flames and temperature after the explosion are not transmitted outside the cavity
Designed according to the latest explosion-proof regulations GB3836 in compliance with international IEC standards;
Adopt two-chamber flameproof structure, easy to replace temperature measuring element, safe and reliable to use
Explosion-proof mark dⅡCT6, suitable for temperature measurement below IIC level, ignition temperature above T6, and explosive gas.
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 an explosion-proof thermocouple as a temperature sensor in these places. The explosion-proof thermocouple products produced by Jiangsu Jinhu Dongxiang Instrument Co., Ltd. are suitable for use in places with a risk of explosive gas in the dⅡCT6 temperature group interval.
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.
是一种温度传感器，在化学工业自控系统中应用极广，经过温度传感器，可将控制对象的温度参数变成电信号，传送给显现、记载和调理仪，对系统实施检测、调理和控制。 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. I. Main technical parameters Electrical outlet: M20x1.5NPTI1 / 2 Thermal response time: ≤8S Coupling wire diameter: Ф1. Ф2. Ф3 Protection level: IP65 Explosion-proof level: d‖BT4.d‖CT5
1. Order the thermocouple I according to the agreement;
2. Order other materials of maintenance tube according to the agreement;
3. The users of the external maintenance management should prepare their own;
1.Designed according to the latest explosion-proof regulations GB3836 that conform to international IEC specifications;
2.Adopt two-chamber flameproof structure, it is tedious to change the temperature measuring element, and it is safe and reliable to use
3. Explosion-proof mark dⅡCT6, suitable for temperature measurement below IIC, ignition temperature above T6, and places with explosive gas.
4. Note: Please power off during maintenance