2results about How to "Improve refrigeration efficiency" patented technology

The invention relates to a novel skid-mounted vacuum fractionating tower cold box, and aims to overcome the defects in the prior art. The fractionating tower mainly comprises a cold box, a thermal insulation support and a rectifying tower, the thermal insulation support is arranged at the bottom of the cold box, the rectifying tower is fixed above the thermal insulation support, and a thermal insulation part is filled between the cold box and the rectifying tower. A heat exchanger is arranged in the cold box and connected with the rectifying tower through a pipeline I, a pipeline II and a pipeline III, the pipeline I is connected with a compressed air source, the pipeline II conveys nitrogen products prepared by the rectifying tower, and the pipeline III discharges oxygen-enriched air by-products. Carbon fiber is used as a thermal insulation bracket material, so that the fractionation efficiency is remarkably improved, and the cooling capacity loss is reduced; and the pre-filling design of pearlife is adopted, and the interior of the cold box is vacuumized, so that the heat insulation effect and the safety are enhanced. In addition, the cold box adopts a cylindrical design, so that the manufacturing cost and resource waste are reduced, the occupied area is reduced, the efficiency is improved, and the energy consumption is reduced. The skid-mounted vacuum fractionating tower cold box provided by the invention has a wide application prospect.

The application relates to the field of food transportation, in particular to a food raw material transportation device which comprises a storage frame, a top cover, a connecting frame I and the like; a temperature monitor is arranged in the storage frame; the top cover is detachably connected to the storage frame; a plurality of fixing plates are arranged on the storage frame; the space between the storage frame and the fixing plates is a sandwich layer; and the storage frame and the fixing plates are jointly provided with the connecting frame I. The application is characterized in that a clamping groove is arranged on the storage frame, a partition plate is arranged in the clamping groove, a plug-in plate is arranged on the partition plate, the plug-in plate presses the sealing part I into the circulation pipeline, the cold air in the circulation pipeline is guided into the partition plate by the plug-in plate, the cold air is sprayed from the air outlet groove to the adjacent partition plates, the cold air is better diffused to the periphery of the food raw materials in cooperation with the cold air sprayed from the sealing part I, and the cold storage of the food raw materials is facilitated.