Wire combustion characteristic test device
A technology of combustion characteristics and experimental equipment, which is applied in the field of experimental equipment for the study of melt dripping, can solve problems such as frequent fire accidents, and achieve the effect of convenient burning speed and dripping speed
Active Publication Date: 2021-07-09
HEFEI INST FOR PUBLIC SAFETY RES TSINGHUA UNIV +1
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Problems solved by technology
[0002] Stayed cables and cables are widely used in people's production and life. However, fire accidents caused by stay cables and cables are not uncommon at present.
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[0025] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention are clearly and completely described below in conjunction with specific embodiments and with reference to the accompanying drawings. Obviously, the described embodiments are part of the implementation of the present invention. example, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0026] like figure 1 As shown, the present embodiment provides an experimental device for the combustion characteristics of wire rods, including a first balance, a second balance (not shown) and a second balance (not shown) in the cover body 1, the first balance A wire support 2 is provided on the second level, a tray support 3 is provided on the second level, a flow tra...
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The invention provides a wire combustion characteristic test device which comprises a first balance and a second balance which are located in a cover body, a wire support is arranged on the first balance, a tray support is arranged on the second balance, a flowing tray is arranged on the tray support, a wire is hung on the wire support, the projection of the wire in the vertical direction falls on the flowing tray, and at least one side of the cover body can slide to adjust the opening degree. The device has the advantages that the flowing state of polymer liquid drops and the spreading condition of flowing fire can be researched, meanwhile, the fire behavior can spread on the wire, the development condition of the fire behavior on the wire can be researched, and the device has positive significance for mastering the fire behavior development rule of different materials. The oxygen supply amount in the cover body can be controlled by changing the contact area of the cover body and air, the fire behavior can be conveniently controlled, and the fire behavior spreading conditions under different oxygen contents can be simulated. The combustion speed and the dripping speed can be quantitatively researched through the first balance and the second balance.
Description
technical field [0001] The invention relates to the technical field of fire safety of wire rods, in particular to an experimental device for research on melt dripping. Background technique [0002] Stayed cables and cables are widely used in people's production and life, but fire accidents caused by stay cables and cables are not uncommon. Most of these wires are wrapped with polymer materials. For example, the main component of the cable sheath is polyvinyl chloride plastic. Materials such as polyvinyl chloride plastic will melt and flow or drip during the heating process, that is, melt dripping. phenomenon, which is of great significance to the flame retardancy and fire dynamics of high molecular polymer materials. On the one hand, the molten substance produced during the decomposition process of polymer materials is a necessary condition for the formation of expanded carbon layers by intumescent flame retardant polymer materials. On the other hand, the dripping of the me...
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IPC IPC(8): G01N25/04G01N25/22G01N21/84
CPCG01N25/04G01N25/22G01N21/84G01N2021/8411Y02E30/30
Inventor 赵小龙付明周斯琛周海涛吴翔飞李舒梁光华范飞
Owner HEFEI INST FOR PUBLIC SAFETY RES TSINGHUA UNIV