Dräger Gas Sampling Solutions
Dräger specialises in the engineering of individual gas sampling solutions for a wide range of different applications. In certain applications, the use of conventional gas detector and sensors may be limited. This may be caused by the environment in which the device needs to be place, the cable routing or even access restrictions. There may also be significant cost implications with installation of these devices.
Gas sampling solutions, or aspirated gas detection system, operate by drawing a gas sample from the desired detection point to a remotely located detector. Typically, the sample is drawn through tubing and some kind of pump is used to move the sample gas stream.
There are typically four main component of a gas sampling system; Sampling, Transport, Measuring and Data Monitoring. Find out more about what makes a system below.
Sampling is an essential step between the process site and the detection point. The use of suitable filters removes fluids or particles in the gas sample, which could otherwise lead to cold spots or damage in the sampling line.
Transport of the gas flow
Extractive gas analysis needs an effective treatment of the gas flow in the pipes to maintain the composition of the target and guarantee high-quality detection results. Unwanted effects like deposits, condensates in the pipes or diffusion through the lines, which can damage the fittings, pipes and tubes must be reduced to a minimum or wholly avoided. The correct conditioning methods; cooling, filtering, heating or condensing of the process gas is essential for providing optimum detection results and prolonging the life of the system.
A critical part of the system
A pump must be used if the pressure difference is insufficient to transport the gas from the process site to the detection (analyzer) point. A gas sampling system can be equipped with an Ex or non-Ex membrane pump, operated by a brushless DC motor to provide a continuous sample.
Effective treatment of the gas flow
Extractive gas analysis needs an effective treatment of the gas flow in the pipes to maintain the composition with the target and guarantee high-quality results of the analysis. Unwanted effects like deposits, condensates in the pipes or diffusion through the lines, which can damage the fittings, pipes and tubes must be reduced to a minimum or wholly avoided.
In gas sampling systems, once the gas conditioning has been completed, it is passed to the detection system. There are specific methods available for different applications and targets.
When operating a system, multiple parameters must be monitored to ensure accurate interpretation of the gas sampling system. This guarantees the correct operation of the system and the process. These parameters include; gas concentration, temperatures and gas flow.
Gas Sampling Applications
Gas Sampling Enquiry?
It is essential to understand customer process conditions to create the best solution to the various application needs. If you have a specific application in mind or would like to discuss further, please complete the short form below and one of our gas sampling experts will be in touch as soon as possible.