Inner and outer barrel structure for oxygen bomb calorimeter

The utility model discloses an inner and outer barrel structure for an oxygen bomb calorimeter, which comprises an outer barrel, an inner barrel is sleeved in the outer barrel in a matching way, the inner barrel is of an elliptic cylindrical structure or other special-shaped structures, and the outer barrel is of an integrally formed structure; an air interlayer is arranged between the outer barrel and the inner barrel, a first pipeline penetrating through the air interlayer and the outside is arranged on the side wall of the outer barrel, and a fan used for air replacement in the air interlayer is arranged in the first pipeline. The air interlayer is arranged between the outer barrel and the inner barrel, and the fan is mounted on the side wall of the outer barrel, so that air in the air interlayer can be quickly replaced after each test, the stability of the air temperature between the inner barrel and the outer barrel is maintained, and the measurement result is more accurate; according to the special-shap