6results about How to "High temperature controllability" patented technology

The invention belongs to the field of organic matter synthesis, and particularly discloses a preparation method of tert-dodecyl mercaptan, which is characterized in that hydrogen sulfide and dodecene are used as raw materials, and an addition reaction is performed under the catalytic action of a solid acid catalyst by adopting a liquid-solid heterogeneous process and a fixed bed reactor to obtain the tert-dodecyl mercaptan. The continuous liquid-solid reaction is realized, the diffusion time of hydrogen sulfide to a liquid phase main body is shortened, the heat capacity and the heat transfer coefficient of a reaction system are improved, the catalytic efficiency of the catalyst and the temperature controllability of the reaction process are improved, and the reactor design is simplified. Under proper operation conditions, the conversion per pass of dodecene is greater than or equal to 85%, the selectivity is close to 100%, the technological process is simple, few three wastes are generated, treatment is easy, and the method is suitable for industrial production.

The present invention relates to a flue gas uniform distribution conversion system for acid production, which is composed of an air inlet pipe, an air outlet, a connecting pipe, a primary distribution plate, a shell, a secondary distribution plate, a catalyst layer and a tertiary distribution pipe. The gas uniform distribution conversion system for flue gas acid production of the present invention adopts a primary distribution plate, a secondary distribution plate and a tertiary distribution pipe, and its gas uniform distribution effect can be improved by 60%, the system resistance increase is less than 450Pa, and the cost increase is less than 2%. The SO2 flue gas is evenly distributed with small resistance, which can ensure the balanced reaction temperature of the catalyst layer, the temperature controllability of SO2 conversion to SO3 is strong, the catalyst activity is high, the catalytic life is long, the conversion efficiency is high, the energy consumption is low, and the operating cost is low. The gas uniform distribution conversion system of the present invention has a novel structural design, simple production and manufacturing, and is very suitable for acid production supporting the smelting system.

The invention provides a double-channel partitioned water cooling screen and a single crystal growth device, and belongs to the field of single crystal growth equipment. The water cooling screen comprises an upper bottom plate, a lower bottom plate, an inner conical barrel, an outer conical barrel, a water inlet, a first water inlet pipe, a second water inlet pipe, a water outlet, a first water outlet, a second water outlet, a first group of annular flow channels and a second group of annular flow channels; wherein the water inlet and the water outlet are formed in the edge of the upper bottom plate; the upper bottom plate, the lower bottom plate, the inner conical barrel and the outer conical barrel form a single crystal cooling drawing space; a first group of annular runners is arranged at the lower part in the cooling and drawing space, and a second group of annular runners is arranged at the upper part in the cooling and drawing space; the lowest part of the lowest runner of the first group of annular runners is communicated with the first water inlet pipe, and the highest part of the uppermost runner is communicated with the first water outlet pipe; the lowest part of the lowest runner of the second group of annular runners is communicated with the second water inlet pipe, and the highest part of the uppermost runner is communicated with the second water outlet pipe. According to the invention, the production energy consumption is reduced, the temperature controllability is improved, and the production yield and the production efficiency are improved.

This invention relates to a redefinable planar microwave device based on vanadium dioxide phase change thin film, belonging to the field of microwave device technology. It includes a phase change patch array, a dielectric substrate, and a metal ground plane connected in sequence. The phase change patch array comprises several uniformly arranged phase change thin film blocks, with conductive sponges between adjacent blocks. One end of the phase change patch array is connected to a transmission line and an input port, and the other end is connected to a reconfigurable transmission line and a reconfiguration port. The phase change thin film blocks, the transmission line, and the reconfigurable transmission line are all made of vanadium dioxide. When the transmission line, the reconfigurable transmission line, and the phase change thin film blocks are heated to 68–72°C in different combinations, the vanadium dioxide undergoes a phase transition, changing from a non-metallic state to a metallic state. At this time, the device surface structure is divided into a phase change region and a non-phase change region. The phase change region effectively replaces the microstrip metal, forming two types of A-shaped planar microstrip patch antennas, two types of microwave planar serpentine inductors, and a planar microstrip capacitor, respectively, thus creating redefinable planar microwave devices.

The application discloses a production system of a negative pole post and relates to the technical field of negative pole posts, which comprises a first carrier for supporting a copper sheet, a second carrier for supporting an aluminum post, an acting piece for heating the copper sheet, a driving source for driving the second carrier to move the aluminum post towards the copper sheet, so that the aluminum post and the copper sheet are in contact and are pressed together to form a negative pole post blank, a stamping and straightening composite mechanism for straightening the processed negative pole post blank, a tensile test tool and / or a tear test tool for testing the straightened negative pole post blank. The application integrates the supporting, heating, pressing, straightening and testing processes through the integration of various components, and a complete negative pole post automatic production system is constructed, so that the negative pole post can be produced on a large scale and economically.

This invention provides a unit delivery box and a logistics delivery vehicle having the same. The unit delivery box includes a storage compartment, an energy storage compartment, an energy storage device located in the energy storage compartment, an energy supply component, and a controller. The energy supply component includes an energy supply duct communicating with the storage compartment and an energy supply fan that drives air to circulate between the energy supply duct and the storage compartment. Part of the energy supply duct is arranged adjacent to the energy storage compartment, and a heat-conducting plate is formed between the energy supply duct adjacent to the energy storage compartment and the energy storage compartment. The energy supply fan is communicatively connected to the controller.