High-vacuum integral adsorption type heat insulation double-wall pipe

The invention discloses a high-vacuum integral adsorption type heat insulation double-wall pipe which comprises an inner pipe and an outer pipe. An annular cavity is formed between the inner pipe and the outer pipe, a heat insulation support is arranged between the inner pipe and the outer pipe, a plurality of adsorption boxes are arranged in the annular cavity, and vacuum adsorbents are arranged in the adsorption boxes; and a vacuumizing joint, a pressure detection joint and a safety blasting device are arranged on the outer pipe. According to the high-vacuum integral adsorption type heat insulation double-wall pipe, a cavity between the whole double-layer pipeline serves as a whole to be vacuumized, high vacuum of a vacuum cavity can be guaranteed for a long time through the vacuum adsorbents, and frequent vacuumizing is not needed. 本发明公开了一种高真空型整体吸附式绝热双壁管，包括内管和外管，内管和外管之间形成环腔，所述内管和外管之间设置有绝热支撑，所述环腔内设置有若干吸附盒，所述吸附盒内设置有真空吸附剂，所述外管上设置有抽真空接头、压力检测接头和安全爆破器，本发明整一路双层管路之间的空腔作为一个整体抽真空，采用真空吸附剂可以长期保证真空腔的高真空，无需频繁的抽真空。