Tiankang explosion-proof thermocouple

Tiankang explosion-proof thermocouple

If there is current passing through, there will be a thermoelectric potential between the two ends

Explosion proof original utilizes the principle of gap explosion-proof to design junction boxes and other components with sufficient strength. All components that can generate sparks, arcs, and dangerous temperatures are sealed inside the junction box. When an explosion occurs inside the chamber, it can be extinguished and cooled through the gap between the joint surfaces, preventing the flame and temperature after the explosion from being transmitted outside the chamber.

Technical Specifications

Thermocouples are tested at an ambient temperature of 20 ± 15 ° C, relative humidity not exceeding 80%, and a test voltage of 500 ± 50V (DC). The insulation resistance between the electrode and the outer sheath is greater than 1000 Ω. m

Armored thermocouples equipped with explosion-proof junction boxes must be inspected by explosion-proof inspection units and obtain explosion-proof certificates.

feature　　

Multiple explosion-proof forms with good explosion-proof performance; Pressure spring type temperature sensing element with good anti vibration performance; Large temperature measurement range; High mechanical strength and good pressure resistance; Design according to the latest explosion-proof regulations GB3838 that comply with international IEC standards; Adopting a two chamber explosion-proof structure, it is easy to replace temperature measuring elements and safe and reliable to use

Explosion proof mark d Ⅱ CT6, suitable for temperature measurement in environments with Class IIC or below, ignition temperature T6 or above, and containing explosive gases.

difference

Explosion proof thermocouple for industrial use is a temperature sensor widely used in chemical industry automation systems. Through temperature sensors, the temperature parameters of the controlled object can be converted into electrical signals and transmitted to display, record, and regulate instruments to detect, adjust, and control the system. In chemical plants, various flammable and explosive chemical gases and vapors are often present on the production site. Using ordinary thermocouples is very unsafe and can easily cause environmental gas explosions. Therefore, explosion-proof thermocouples must be used as temperature sensors in these situations.

Explosion proof thermocouples are usually used in conjunction with display instruments, recording instruments, electronic computers, and other devices. Directly measure the temperature of liquid, vapor, gas media, and solid surfaces within the range of 0 ℃ to 1300 ℃ in the presence of hydrocarbons and other explosives on the production site. Features: Multiple explosion-proof forms, good explosion-proof performance; Pressure spring type temperature sensing element with good anti vibration performance; Large measurement range; High mechanical strength and good pressure resistance; The working principle of explosion-proof thermocouple is to use the principle of gap explosion-proof, design junction boxes and other components with sufficient strength, and seal all parts that can generate sparks, electric arc and dangerous temperature inside the junction box. When an explosion occurs inside the box.

Tiankang explosion-proof thermocouple

Suitable for temperature measurement and control in narrow and curved areas. It is the chemical, synthetic fiber, pharmaceutical and other industries****The temperature measuring device. Main technical parameters: Accuracy level: Class I or II, nominal diameter: Φ 1, bending radius: R ≥ 5D, nominal pressure: atmospheric pressure, model and specification, division number, temperature measurement range: ℃, thermal response time, protection tube material specification: WRNK-191SK0~600<3S1Cr18Ni9Ti. Wear-resistant thermocouple

In some special occasions, such as chemical plants, smelters, power plants, cement plants, etc., ordinary thermocouples and thermal resistors are easily damaged. Therefore, wear-resistant thermocouples (resistors) must be used in these situations. This thermocouple (resistor) is particularly suitable for temperature measurement in the sulfurization bed, coal mill outlet, primary and secondary air coal and cement industries. Features: Based on the WR and WZ series, the insertion part of the protective cover can be fully or partially made. Wear resistant, erosion resistant, and corrosion-resistant. Long lifespan. Can be used for more than 6 months under high temperature.

The difference between explosion-proof thermocouple and ordinary thermocouple

In industrial measurement, there are strong advantages. What are the specific advantages and? What is the difference between it and a regular thermocouple? Let me explain below.

Pressure spring type temperature sensing element with good anti vibration performance; Large measurement range; High mechanical strength and good pressure resistance; The working principle of explosion-proof thermocouple is to use the principle of gap explosion-proof, design junction boxes and other components with sufficient strength, and seal all parts that can generate sparks, electric arc and dangerous temperature inside the junction box. When an explosion occurs inside the box.

Explosion proof thermocouple for industrial use. Explosion proof thermocouple is a temperature sensor widely used in chemical industry automation systems. Through temperature sensors, the temperature parameters of the controlled object can be converted into electrical signals, which are transmitted to display, recording, and regulating instruments for system detection and explosion-proof thermocouple

Explosion proof thermocouple adjustment and control. In chemical plants, various flammable and explosive chemical gases and vapors are often present on the production site. Using ordinary thermocouples is very unsafe and can easily cause environmental gas explosions. Therefore, explosion-proof thermocouples must be used as temperature sensors in these situations. Explosion proof thermocouples are usually used in conjunction with display instruments, recording instruments, electronic computers, and other devices. Directly measure the temperature of liquid, vapor, gas media, and solid surfaces within the range of 0 ℃ to 1300 ℃ in the presence of hydrocarbons and other explosives on the production site. Features: Multiple explosion-proof forms, good explosion-proof performance.

Generate effect

When there is a temperature difference between the measuring end and the reference end, a thermoelectric potential is generated, and the working instrument displays the temperature value corresponding to the thermoelectric potential. It is widely used in chemical industry self-control systems. Through temperature sensors, the temperature parameters of the controlled object can be converted into electrical signals to directly measure and control the temperature of gases, liquids, and vapors in the production process. If ordinary thermocouples are used, it is very unsafe and can easily cause gas explosions in the environment. Therefore, in these situations, explosion-proof thermocouples must be used as temperature sensors, which are used as sensors for temperature measurement and control and matched with display instruments,? To directly measure and control gases in the production process.

There is sufficient internal space, wall thickness, and mechanical strength, and the thermal stability of the rubber sealing ring meets national explosion-proof standards. Thermocouples that exceed the calibration period are not allowed to be used for transmission. If the explosion-proof thermocouple after verification is not used or used for less than 200 hours, the lower temperature end is the free end, which is usually at a constant temperature. According to the functional relationship between thermoelectric potential and temperature, the tested thermocouple is inserted into a single or double hole high aluminum insulation tube, and then the measuring end of the tested thermocouple is uniformly distributed around the measuring end of the standard thermocouple. The thermoelectric potential value measured at 1000 ℃ is the difference between the thermoelectric potential value measured before changing the insertion depth.