Leak detection device, and coating intended for a fluid transport or storage member and comprising said detection device
AssigneeCommissariat A L'Energie Atomique Et Aux Engergies Alternatives
InventorsSerge Albaladejo, Rémi Zanolin
Life of this patent
Estimating the term…
Abstract
The invention relates in particular to a method of covering a duct for transporting or storing a fluid in a device for detecting a leak of the fluid, the device comprising a layer of insulating fibrous material arranged to surround the duct and a layer of conductive material that extends against the layer of insulating material, the conductive material being essentially constituted by fibers of carbon or graphite, wherein the layer of insulating material is secured to the wall of the duct by strapping ties around said layer.
Claims22
A device for detecting a leak of a fluid that is stored or transported in a duct (10) having an electrically conductive outer wall (11), which duct is covered in a layer of insulating fibrous material (13) arranged to surround the duct, the device comprising a layer of conductive fibrous material (16) that extends against the layer of insulating fibrous material (13), the conductive fibrous material being essentially constituted by a carbon or graphite felt.
A device for covering a duct (10) having an electrically conductive outer wall (11), which duct is covered in a layer of insulating fibrous material (13) arranged to surround the duct, that includes:
- a detector device for detecting a leak of a fluid that is stored or transported in the duct, the device comprising a layer of conductive fibrous material (16) that extends against the layer of insulating fibrous material (13), the conductive fibrous material being essentially constituted by a carbon or graphite felt;
- and
- a layer of thermally insulating material (19) essentially constituted by fibers that extends against the layer of conductive fibrous material (16).
A duct (10) for transporting or storing a heat-transfer fluid, the duet having an electrically conductive outer wall (11) and being covered in a layer of insulating fibrous material (13) arranged to surround the duct, the duct being fitted with a device for detecting a leak of the heat-transfer fluid, the device comprising a layer of conductive fibrous material (16) that extends against the layer of insulating fibrous material (13), the conductive fibrous material being essentially constituted by a carbon or graphite felt;
- the duct having first ties (14) serving to secure the layer of insulating fibrous material (13) to the wall (11) of the duct.
A method of covering a duct (10) for transporting or storing a heat-transfer fluid in a device that is for detecting a leak of the heat-transfer fluid, the duct having an electrically conductive outer wall (11) and being covered in a layer of insulating fibrous material (13) arranged to surround the duct, the device comprising a layer of conductive fibrous material (16) that extends against the layer of insulating fibrous material (13), conductive fibrous material being essentially constituted by a carbon or graphite felt, wherein the layer of insulating fibrous material (13) is secured to the wall (11) of the duct by strapping first ties (14) around said layer.
A method of checking proper operation of a leak detector device fitted to a duct, the duct having an electrically conductive outer wall (11) and being covered in a layer of insulating fibrous material (13) arranged to surround the duct, the leak detector device comprising a layer of conductive fibrous material (16) that extends against the layer of insulating fibrous material (13), the conductive fibrous material being essentially constituted by a carbon or graphite felt, wherein a short circuit is established between the wall (11) of the duct and the layer of conductive fibrous material (16).
Dependencies are inferred from the claim text.