Asbestos-nonmetallic fibrofelt wick heat plate

Abstract

The invention discloses an asbestos-nonmetallic fibrofelt wick heat plate, belonging to the technical field of heat exchange equipment using an intermediate heat transfer medium or intermediate heat transfer body. The asbestos-nonmetallic fibrofelt wick heat plate disclosed by the invention comprises a sealing shell, a first nonmetallic fibrofelt wick, a second nonmetallic fibrofelt wick, a supporting frame and a heat-conducting liquid working medium, wherein the supporting frame, the first nonmetallic fibrofelt wick and the second nonmetallic fibrofelt wick are mounted inside the sealing shell, and the interior of the sealing shell is filled with the heat-conducting liquid working medium. Compared with the prior art, the asbestos-nonmetallic fibrofelt wick heat plate has the advantages that the nonmetallic fibrofelt wicks have relatively good capillary force and permeability, so that the bonding strength and contact area among fibers are increased; a large number of three-dimensional reticulated porous structures are formed among the fibers, so that the porosity is high, the specific area is large, and the liquid reflux resistance is low; the increase of reflux speed of the liquid working medium in the heat plate is facilitated, and then, the heat dissipating performance of the heat plate is improved.

Description

technical field [0001] The invention belongs to the technical field of heat exchange equipment using an intermediate heat transfer medium or an intermediate heat transfer body, more specifically, it belongs to a heat plate whose liquid-absorbing core material is asbestos non-metallic fiber felt. Background technique [0002] The flat hot plate in the prior art generally includes a sealed shell, a liquid-absorbing core, and a heat-conducting working medium. The sealed shell is a plate-shaped hollow structure, and the liquid-absorbing core is welded on the inner surface of the sealed shell. Its working principle is: the sealed inner cavity of the sealed shell is filled with heat-conducting working medium, and the heat-conducting working medium is absorbed by the capillary adsorption force of the liquid-absorbing core installed in the inner cavity of the sealed shell. When the heating element connected to the radiator is working , the generated heat is transferred to the radia...

AI Technical Summary

Problems solved by technology

[0004] Wire mesh liquid wick can get high heat transfer performance, but the manufacturing process repeatability is poor

[0005] Groove-type liquid-absorbing core has the advantages of small channel liquid flow resistance, but its capillary pressure head is small, heat transfer is small and other disadvantages, and it has high requirements for groove depth and width, and the directionality of the hot plate is very strong; When the groove has a large bend, the heat transfer performance of the hot plate is greatly reduced, the anti-gravity performance is poor, and its processing technology is complicated

[0006] The powder sintered liquid-absorbent core has the advantages of large capillary suction force and large heat transfer, but there is a contradiction that the capillary pressure increases while the liquid return resistance increases; the powder sintered liquid-absorbent core has low porosity and cannot be controlled. The backflow resistance is large, the structure of the liquid-absorbing core is easily damaged, and the sintered layer is thick, resulting in a large thermal resistance

Images