Reactor Multipoint Thermocouples
Multipoint thermocouple assemblies are critical design assemblies that employ multiple thermocouples ( or RTDs ) in a single assembly for measurement of temperature at different locations or elevations depending upon the requirement of the process. These assemblies are usually employed on a vessel such as a hydrocarbon reactor, storage tanks, regenerators, cryogenic vessels, and many more applications. These sensors usually measure the temperature of the catalyst, or flue gas or liquid, or any process gas. The construction involves direct temperature measurement with or without thermowells. The process conditions range from low pressure to high pressure, but usually at temperatures beyond 300 deg C. This category features various design and constructional variations, which have been modeled by our team, for ease of selection as per your requirement.
Multipoint Thermocouple Assemblies – 900 Series
901A Series
This construction involves multipoint RTDs for use in cryogenic storage tanks for tank leak detection systems. The monitoring of temperature inside the tank & also in the concrete base slab is essential to check the integrity of the tank, and the annular space for leakage. Our RTDs have been used in many storage tank installations in India, and have proved reliable for long-term trouble-free performance. Our site support team can assist our customers in installation and supervision areas. All RTDs are provided with cryogenic temperature output reports as per the requirement of the customer.
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901D Series
These are multipoint temperature sensor employing thermocouple or RTDs, which are housed in a common protecting tube, which is generally in the scope of a reactor vendor. The sensors are provided with special construction which enables positive contact with the internal wall of the protecting tube for a faster thermal response.
902 Series
This design involves multipoint thermocouple assemblies for use inside a reactor such as atmospheric CCRU, wherein each thermocouple is extended outside the common protecting tube or thermowell, for direct contact with the process. This design involves intricate features such as a guide tube, sealing of thermocouples, and working with challenging geometries of interconnecting parts. The number of thermocouples can be offered based on the process requirement, but generally are between 4 to 12.
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903 Series
This construction involves multipoint thermocouples extended by individual protecting tubes below the flange to its respective measuring location. Number of points, and material of construction can be selected by the user.
905 Series
This construction of multipoint thermocouples has been extensively specified by many licensors for bed temperature measurement of catalyst in reactors. The design involves thermocouples housed in a common thermowell, and routed inside thermowell using a guide tube, and contact plug for direct mounting on the thermowell wall. This ensures a faster response but also introduces more weld joints on the assembly. The design is used on medium pressure reactors and involves large measuring points ranging from 3 points to 42 points.
906 Series
This is a popular design of 3 point temperature measurement in reactors wherein each thermocouple or RTD is enclosed inside a guide thermowell, and laid straight onto a Tee beam and mounted on a process flange using suitable high pressure sealing and welding. The design is critical and requires expertise on fabrication.
907 Series
Multipoint thermocouples deployed on tubular reactors for measuring catalyst temperature are one of the most intricate designs involving very small diameter thermocouples ( 0.5mm ). These are enclosed in very small diameter thin wall tubes for generating a very fast response of thermal changes. Typical installations are on reactors such as Phthalic Anhydride, which have exothermic reactions and temperature measurements are required to be highly reliable.
Multipoint thermocouples deployed on tubular reactors for measuring catalyst temperature are one of the most intricate designs involving very small diameter thermocouples ( 0.5mm ). These are enclosed in very small diameter thin wall tubes for generating a very fast response of thermal changes. Typical installations are on reactors such as Phthalic Anhydride, which have exothermic reactions and temperature measurements are required to be highly reliable.
970 Series
This Series involves multipoint RTDs used in storage tanks for measuring non-dynamic temperature conditions. RTDs are enclosed in a flexible bellow or hose at varying heights and for lengths going beyond 10 meters. Temperature measurement is critical to maintain the properties of the stored liquid.
This Series involves multipoint RTDs used in storage tanks for measuring non-dynamic temperature conditions. RTDs are enclosed in a flexible bellow or hose at varying heights and for lengths going beyond 10 meters. Temperature measurement is critical to maintain the properties of the stored liquid.
This Series involves multipoint RTDs used in storage tanks for measuring non-dynamic temperature conditions. RTDs are enclosed in a flexible bellow or hose at varying heights and for lengths going beyond 10 meters. Temperature measurement is critical to maintain the properties of the stored liquid.
