The utility model discloses a calorimeter lid with closed circulation tube temperature control mechanism, which comprises an inner barrel and the outer barrel and the inner barrel and the outer barrel arranged on the top of the lid, the inner barrel is arranged in the outer barrel, outer barrel cavity filled with a medium formed between the outer wall and inner wall of the outer barrel, air layer is arranged between the inner barrel and the outer barrel, the barrel cover is provided with a barrel cover circulation pipe is arranged on the outer wall of the lid, the lid outer circulation pipe, a circulating pipe and a barrel cover lid outer circulation pipe and circulation supply device composed of closed loop tube temperature control mechanism. The utility model relates to a constant temperature to maintain a long-term lid and the outer barrel and the inner barrel, to create a calorimeter an ideal environment lid with closed circulation tube temperature control mechanism, so as to shorten the time of test instrument, improve the test precision of the instrument.
【技术实现步骤摘要】
本技术主要涉及到煤炭、石油化工或电力行业中用来测定煤、油或其它发热物质发热量的测量仪器,特指一种桶盖带闭路循环管控温机构的量热仪。
技术介绍
现有技术中,用来测定物质发热量的测量仪器一般都由内桶、外桶以及设置于内桶顶部的桶盖组成,其中内桶设置于外桶中;测试时,将测试样品的氧弹放置于内桶中,与点火电极相连,到规定的时间通电点火,让样品充分燃烧。为保证准确地测定物质的发热量,外桶及内桶与氧弹的温度必须保持一致,当外桶外部的环境温度维持恒定不变,且外桶温度与环境温度保持一致时,该仪器测热体系的热容量应该确定的,从而可以获得再现性和准确性都不错的测试结果。但是现有技术存在的不足就在于1、实际工况下的环境温度不确定因素太多,如何让测量装置在某一特定的环境下迅速达到理想测量温度的范围是检验测量装置品质好坏的条件之一。另外,内桶的温度不但直接地受到用来盛装内桶的外桶内温度影响,同时间接地还受到外桶外环境温度的影响,因此需要先将外桶外侧壁的温度稳定到一临近标准的范围,然后再将外桶内介质的温度调到最合适的温度,才能使测量装置快速地达到适合测量的温度,完成测量工作;2、在大多数情况 ...
【技术保护点】
一种桶盖带闭路循环管控温机构的量热仪,它包括内桶(1)、外桶(2)以及设置于内桶(1)和外桶(2)顶部的桶盖(3),内桶(1)置于外桶(2)中,外桶(2)的外侧壁(22)与内侧壁(21)之间形成装有介质的外桶腔体(23),内桶(1)和外桶(2)之间设有空气夹层(4),其特征在于:所述桶盖(3)内设有桶盖内循环管(31),桶盖(3)的外侧壁上设有桶盖外循环管(32),桶盖内循环管(31)、桶盖外循环管(32)和循环供给装置(6)组成闭路循环管控温机构。
【技术特征摘要】
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