Friday, September 25, 2020

Engine-Compressor Thermocouples for Offshore Platform Generators

Engine-Compressor Thermocouple

Providing power to a broad range of sophisticated equipment on offshore oil and gas platforms requires a large amount of uninterrupted electricity. Pumps, valve operators, essential communications, turntables, engines, and safety devices are just a subset of the environment of drilling and processing that needs a reliable power source. A large amount of electrical power, not unlike a small town, is required. Electric generators provide comfort heating, cooling, water desalination, food storage, and even waste processing. 

On offshore platforms, conditions are harsh. Equipment and components must be robust to function correctly and decrease the need for regular maintenance. 

Temperature is one of the compressor's most critical measurement parameters and its accuracy can directly affect compressor efficiency. Analysis reveals that errors in temperature calculation account for over 80% of efficiency errors. More aspects of compressor temperature measurement and improved methods of temperature measurement are required.  Thermocouples are used to measure inter-stage gas compressor temperature and outlet gas temperature.  

A specialized temperature sensor known as an 'engine-compressor thermocouple' measures temperature in these applications. These are heavy-duty, specially built temperature sensors that monitor a variety of parameters including exhaust gases and lubricant temperatures. Such sensors are time-tested and designed to withstand the harsh mechanical and environmental conditions of offshore marine conditions. The thermocouple's prime requirement is to be robust enough to withstand a high vibration and corrosive environment and still be accurate and fast responding.

The engine-compressor thermocouple provides oil and gas platform technicians with precise measurements, excellent accuracy, and rapid response times. These thermocouples are also easily checked for calibration, removed, and replaced if necessary.

Duro-Sense Corporation
310-533-6877
https://duro-sense.com

Friday, September 4, 2020

Sunday, August 30, 2020

Duro-Sense Thermocouple Wire and Thermocouple Extension Wire

Thermocouple Wire
Insulated thermocouple wire is single pair wire that can be made into a thermocouple. Thermocouple wire is made from two dissimilar metals conductors that are joined (welded) together at the sensing end. Different metal wires are used for the various types of thermocouple types (J, K, T, E, etc). These dissimilar metals produce a millivolt electrical signal at the cold junction that is proportional to the change in temperature at the sensing end. Thermocouple wire has two grades; standard and Special Limits of Error. Special Limits of Error wire is made of the same metals as standard wire, but uses a higher grade with increased accuracy and higher expense than standard thermocouple wire.

Thermocouple extension wire is a single pair wire that cannot be made into a thermocouple, but is used to carry the signal form a thermocouple to the recorder, controller, or instrument reading the signal. Extension grade wire usually has lower ambient temperature specifications. It is used to carry signal representing the higher temperature seen by the sensing location, but extension wire cannot be generally cannot be exposed to those higher temperatures. Extension wire cannot be used to make a thermocouple, but thermocouple wire can be used as extension wire. Insulation is typically PVC, but other option are available.

For more information about Duro-Sense thermocouple wire, visit their website here.

Duro-Sense is currently having their annual wire sale (while supplies last). Here is a list of inventory that is on sale now. Call 310-533-6877 with questions.

Thursday, August 13, 2020

Check Out the Duro-Sense Annual Wire Sale!

wire sale

Duro-Sense Corporation is a high quality manufacturer of thermocouples, RTD's, and other custom temperature sensing assemblies. Every year, Duro-Sense provides access to their "shorts and overrun" wire inventory for public sale. Offered at very attractive prices, this is perfect quality product in odd lengths or has special design characteristics. You can download the Wire Sale Inventory List from this link. Products are available on a first come, first served basis while supplies last. For more information or to place an order, call 310-533-6877 or email sales@duro-sense.com.

SEE THE DURO-SENSE WIRE INVENTORY LIST HERE

Wednesday, July 22, 2020

Mineral Insulated Thermocouples

Mineral Insulated Thermocouples
Mineral insulated thermocouples are robust , high temperature sensors made of thermocouple conductor wires inside a magnesium oxide-filled tube. MI Thermocouples are very durable and can withstand up to 2100 ° F.  (Type K) making them suitable for a wide range of aerospace and industrial applications. 

There are a wide variety of design choices for Duro-Sense MI thermocouples. They can be made with different diameters and sheathing materials, and are supplied in a wide variety of construction types, with a broad selection of accessories.

Friday, June 19, 2020

Plastics Industry Thermocouple Catalog

Plastics industry thermocouples are designed as an economical solution for the plastics molding and forming industry, and have many other general uses as well.  Their design typically includes a bayonet connection which is ideal for spring loaded sensing of injection mold equipment. They typically are constructed with the "hollow-tube" design for economy and ease of manufacturing. Most common applications are plastic extruders, injection molding machines, and rubber industry presses.

DOWNLOAD THE PLASTICS INDUSTRY CATALOG HERE