Apparatus and method for monitoring a reactor surface
A technology for reactors and equipment, which is applied in the field of equipment for monitoring the surface of reactors, can solve the problems of different thermal strains of reactor materials, undurable fixing materials, unsuitable fixing systems, etc., and achieve good thermal contact and high fail-safe protection Effect
Inactive Publication Date: 2015-04-15
LIOS TECH
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Problems solved by technology
Known fixing systems cannot always be used because, for example, the thermal strain of the reactor material is different and the materials used for fixing are different
Also fastening materials are often not durable under harsh environmental conditions such as high temperature or humidity
Furthermore, there is the possibility that pins or other fastening elements are not present on the reactor or are not allowed to be installed because, for example, drilling or welding on the pressure vessel to be tested is prohibited
In addition many fixing systems are not suitable for forming thermal contact between the sensor cable and the reactor surface, this refers for example to clamping devices on irregular, eg concave surfaces
Frequently, the cost of laying sensor cables with known fixing systems is also too great
Method used
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Embodiment Construction
[0030] The device according to the invention is in figure 1 The embodiment depicted in includes two optical fibers 1 , 2 which are arranged together in a sensor cable, not shown. The sensor cable with the two optical fibers 1 , 2 is arranged around the reactor (not shown) in the form of a loop or in the form of a corrugation or in a helical manner, wherein the sensor cable rests as closely as possible on the surface of the reactor.
[0031] It is entirely possible that more than two optical fibers are arranged in the sensor cable.
[0032] There is also the possibility that connecting elements such as connector boxes or plugs are provided between the partial lengths of the sensor cable.
[0033] The sensor cable can be a heat and / or corrosion resistant sensor cable. For example high temperature light guides (fiberglass with polyimide or other heat resistant coating) in corrosion resistant metal tubules (stainless steel or nickel alloy) can be used. In order to increase the...
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Apparatus for monitoring a reactor surface with a sensor cable, which is during operation at least partially arranged in the region of the reactor surface, has at least two optical fibers (1, 2) arranged in the sensor cable, has at least one laser light source whose light is coupled at least partially into the optical fibers (1, 2) during the operation of the apparatus, and evaluation means, in which portions of the light coupled out of the optical fibers (1, 2) are evaluated during the operation of the apparatus, for monitoring at least partially the reactor surface with respect to at least one physical size in a spatially resolved manner. The apparatus includes magnetic retaining means (8) for attaching the sensor cable (10) on the reactor surface.
Description
technical field [0001] The invention relates to a device for monitoring reactor surfaces according to the preamble of claim 1 . Furthermore the invention relates to a method for monitoring the surface of a reactor. [0002] definition: When the terms light, light beam or light signal are used below, this refers to electromagnetic radiation in the spectral range, in particular from XUV to FIR. Accordingly, within the scope of the present application, optical waveguides or optical fibers are used as transmission medium for electromagnetic radiation in the spectral range. Background technique [0003] Industrial reactors sometimes have large, irregularly shaped surfaces for which, for example, it is desirable to monitor temperature or strain. Single-point sensors appear to be unsuitable due to the large number of sensors required for surface monitoring and the associated high installation and networking costs. Fiber optic systems for the distributed measurement of variables...
Claims
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IPC IPC(8): G01K11/32G01B11/16
CPCG01B11/16G01K11/32G01K1/143G01B11/161
Inventor W·希尔J·屈布勒
Owner LIOS TECH