Device for recognising and reporting sparks of combustible materials
A kind of equipment and fire technology, applied to fire alarms, fire alarms, alarms, etc. that rely on radiation effects, can solve problems such as light wave loss, pollution, and non-monitoring optical windows, and achieve cost-effective effects
Inactive Publication Date: 2010-10-27
MINIMAX LIMITED
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Problems solved by technology
[0011] The proposed solutions either suffer from this disadvantage: they consist of many individual parts, and after the coupling connection, the optical waveguide transmits the transmittable beam to the electrical converter with severe losses, so that the exhaust housing is aligned with the airflow, rather than Aerodynamically shaped and consequently contaminated optics; either the optical window is not monitored for contamination and the functioning of the alarm is not monitored
Method used
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Embodiment Construction
[0035] figure 1 A schematic and a sectional view of a device for detecting and warning of a fire is shown, wherein only a part of the rod 14 is shown. The diverter 3 is directly connected to the reflector 9 . Both parts are fixed on the light-transmitting ring 2 . On its other side, the light-transmitting ring 2 is screwed to the line of the outflow housing 1 . The other side of the outflow housing 1 is closed by a closure cover 8 which is sealed and in this case glued on. The calibration insert 4 is inserted and fixed via the closure cover 8 . The alignment insert 4 is used for alignment of a concave mirror 6 which is fixed on a mirror holder 7 . A cylindrical pin 12 and an adjustment screw 11 shown as a countersunk screw allow adjustment of the mirror 6 in two directions. Pivoting is achieved by adjusting the adjusting screw 5 relative to the spring 10 , wherein the mirror 6 rotates about the axis 13 . Thus, after assembly, there is the possibility of precisely alignin...
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The invention relates to a device for detecting and reporting fire phenomena, particularly sparks (15) in a gas stream that might be charged with solid particles and flows through a conveyance line, by means of a displacement body that extends longitudinally in the flow direction of the conveyance line, consisting of the displacement body (1) disposed on a shaft (14), a deflector (3) disposed at one end of the displacement body (1), in front of a light-permeable ring (2), in the interior of which a reflector (9) is disposed, an adjustable mirror (6) at the other end in the interior of the displacement body (1), by way of which a signal (16) is reflected into the interior of the shaft (14), and an optical reception (21) and evaluation unit (27) at the end of the shaft. The invention has the advantage that it consists of few parts and therefore can be produced in a cost-advantageous manner, the received signals reliably reach the alarm unit, and information concerning the light-permeability of the optical window is present at all times, so that it can be quickly and easily replaced.
Description
technical field [0001] The invention relates to a device according to the features of the first claim. [0002] The invention relates to a device for identifying potential or ignition sources, in particular hot particles or sparks, in transport units for combustible materials. Such devices are used in particular for monitoring the interior of pipes and channels in which a combustible transport material, including dust, liquid or solid particles, is transported in a drop section or by means of a conveying air stream. [0003] The invention is suitable for use in conveying lines in which flammable or explosive, preferably dust-like particles are pneumatically transported. Background technique [0004] Various possibilities are known for detecting optical fires in solid particle-laden conveying lines and triggering an alarm. In most cases, an optical beam based on ultraviolet or infrared radiation is used. For this purpose, sensors for fire detection are arranged either in o...
Claims
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IPC IPC(8): G08B17/12A62C3/06
CPCG08B17/12G08B29/043G08B25/002G08B29/145G08B17/113
Inventor M·鲁斯沃尔姆B·齐姆斯M·古德扬
Owner MINIMAX LIMITED