Inner skirt structure between inner container and outer container of large vacuum storage tank

The utility model discloses an inner skirt structure between an inner container and an outer container of a large vacuum storage tank, which relates to the field of vacuum storage tanks and comprises an inner tank body, a layer of support separation net is wrapped on the outer wall of the inner tank body, a layer of separation layer is wrapped outside the support separation net, and heat preservation filling cotton is filled in meshes of the support separation net. A layer of outer tank body is sleeved outside the inner tank body and the isolating layer, a group of inner skirts are connected between the bottom of the inner tank body and the bottom of the inner side of the outer tank body, and a plurality of support columns connected with the outer tank body are arranged on the outer wall of the isolating layer. The thermal insulation effect of the device can be more ideal by filling the thermal insulation filling cotton into the meshes of the supporting separation net on the outer wall of the inner tank body,