The invention discloses a heat dissipation device, system and method for an underground closed pipeline. The device comprises a sealing pipe and a vacuum pipe, the middle of the sealing pipe is communicated with the vacuum pipe through a first pipeline, and the two sides of the sealing pipe are communicated with the vacuum pipe through second pipelines respectively. A plurality of tube bundles distributed at intervals are mounted in the sealing pipe. Low-pressure air in the vacuum pipe can form convection type circulating air flows after heat exchange is completed in the sealing pipe. According to the heat dissipation device, system and method, gases with lower density and higher heat in the vacuum pipe are floated into the sealing pipe/a heat exchanger for heat exchange under the unpowered condition through the principles of violent pressure fluctuation and thermal expansion and cold contraction generated by train operation. Meanwhile, the pressure difference generated by a headstock and a tailstock is utilized to fill the interior of the heat exchanger with a hot gas to perform convection and heat exchange with external air, so that the air convection effect is effectively enhanced, and the heat dissipation effect is improved.
本发明公开了一种用于地下密闭管道的散热装置、系统及方法,其技术方案为:包括密封管、真空管,所述密封管的中部通过第一管道与真空管连通,密封管的两侧分别通过第二管道与真空管连通;密封管内部安装有若干间隔分布的管束;真空管内部的低压空气在密封管中完成换热后能够形成对流式循环气流。本发明通过列车运行产生的剧烈的压力波动和热胀冷缩的原理使真空管内密度较低、热量较高的气体在无动力条件下飘入密封管/换热器中进行换热;同时利用车头车尾产生的压差使热气体充斥于换热器的内部与外部空气进行对流和热量交换,有效增强了空气对流效果,提升了散热效果。
Heat dissipation device, system and method for underground closed pipeline
一种用于地下密闭管道的散热装置、系统及方法
2021-04-09
Patent
Electronic Resource
Chinese
IPC: | F28D Wärmetauscher, soweit in keiner anderen Unterklasse vorgesehen, in denen die Wärmetauschmittel nicht in direkte Berührung miteinander kommen , HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT / B61B RAILWAY SYSTEMS , Eisenbahnanlagen / F28F Einzelheiten von Wärmetauschern oder Wärmeübertragungsvorrichtungen für allgemeine Verwendung , DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION |
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