2results about How to "Operating economy" patented technology

The utility model discloses a kind of wall steady-state heat transfer property detection equipment, it is related to wall steady-state heat transfer detection technical field. Including detection box, heating assembly, fixing piece and detection piece, the simulation wall is placed in detection box and is fixed to simulation wall by fixing piece, after fixing piece is fixed to simulation wall, the detection box is divided into two chambers, the heating cavity below simulation wall, heating assembly is set in heating cavity and heats, it is detection cavity above simulation wall, temperature detection is carried out in detection cavity by detection piece. The utility model is set through heating assembly, fixing piece and detection piece etc., and the accuracy of heat transfer is ensured by heat insulation design and flexible thermometer adjusting function, to improve the reliability of detection result, fixing piece installation, quick cover plate sealing and simple thermometer adjustment operation, obviously improve detection efficiency.

The invention discloses a preparation method of an imrecoxib oxide impurity (compound 1). The preparation method comprises the following steps: carrying out oxidation one-step reaction on imrecoxib under the action of alkali; and synthesizing to obtain the target product imrecoxib oxide impurity (compound 1). The route provides a simple and effective method for preparing the imrecoxib oxide impurity (compound 1). Compared with a conventional synthesis route, the method has the advantages that the reaction route is shorter, the reaction is more economical, expensive reagents are not needed, and the like.