5results about How to "Ambient temperature is stable" patented technology

The invention relates to the technical field of temperature control, and particularly discloses a micro-reactor real-time control system for fine chemical engineering, and the system comprises an acquisition module which calculates a standard temperature according to the temperature at a monitoring point, and periodically obtains the standard temperature in a preset acquisition period; the analysis module is used for calculating a temperature difference value, obtaining a maximum temperature difference value and obtaining a temperature change value; coordinate points are generated and fitted to obtain a fitted curve, and the total number of reference points on the fitted curve is counted; and the adjusting module is used for calculating the judgment value, determining whether to adjust the power of the temperature adjusting module or not according to the judgment value, and adjusting the power of the temperature adjusting module according to the fitting curve. According to the invention, the environment temperature in the microreactor can be kept stable, and the complexity of controlling the temperature in the pipeline is reduced.

The utility model discloses a dehydrogenation device. The dehydrogenation device comprises a furnace body, a carrying table and a single crystal crucible, a furnace cavity is formed in the furnace body, the carrying table is arranged in the furnace cavity, the single crystal crucible is selectively arranged in the furnace cavity, and the single crystal crucible is provided with an arc-shaped crucible bottom and is arranged on the carrying table. Therefore, the purity of the high-purity layer in the single-crystal crucible is high, the problems of powder falling and coating falling are avoided, pollution caused by diffusion of impurities in the single-crystal crucible to particle silicon at high temperature is reduced, and in addition, the single-crystal crucible is high in strength, good in high-temperature stability, long in service life at high temperature and low in cost. The dehydrogenation efficiency of the dehydrogenation device can be improved, and the dehydrogenation cost can be reduced.

The present invention discloses a phased array weather radar and an amplitude and phase calibration system and method thereof, and relates to the technical field of weather radars. The system includes a signal processing unit, a transmitting channel main link, a receiving channel main link, a radar antenna, a first calibration link, a second calibration link, a circulator and a coupler; the transmitting channel main link and the receiving channel main link are respectively connected to the signal processing unit, and the transmitting channel main link and the receiving channel main link are also respectively connected to the circulator; the first calibration link and the second calibration link are respectively connected to the signal processing unit, and the first calibration link and the second calibration link are also respectively connected to the coupler; the coupler is connected to the circulator and the radar antenna; the first calibration link or the second calibration link is arranged in a constant temperature chamber. The ambient temperature of the first calibration link or the second calibration link of the present invention is stable, which improves the amplitude and phase calibration accuracy of each transmitting channel and each receiving channel.

The utility model discloses a cooling device used in a stem cell cryopreservation process, and relates to the technical field of stem cell cryopreservation equipment. The device comprises a storage box, a cover plate is hinged to one side of the top of the storage box, a placement box is installed in the storage box, a plurality of test tube grooves are formed in the top of the placement box at equal intervals, and a gap groove is formed between the placement box and the inner wall of the storage box. Dry ice storage boxes are fixedly installed on the two opposite sides of the outer wall of the storage box, conveying pipes at the bottoms of the dry ice storage boxes are inserted into the bottoms of the gap grooves, and baffles distributed at intervals are fixedly arranged in the gap grooves. The cooling box, the water inlet pipe and the water outlet pipe can block external high temperature through circularly-cooled cooling water, a proper low-temperature environment in the transfer box is maintained, adverse effects of the external environment on the cooling process are reduced, normal cooling work is guaranteed, and the overall cooling efficiency is improved.

This invention provides a control method, apparatus, and temperature control device for a magnetic refrigeration temperature control system, relating to the field of temperature control technology. The magnetic refrigeration temperature control system includes a magnetic refrigeration unit and a heat exchange unit. The method includes: acquiring current environmental parameters and calculating the deviation between the current environmental parameters and target environmental parameters; adjusting the control parameters from the previous moment based on the deviation value and a preset adjustment coefficient to obtain the control parameters for the current moment; wherein the control parameters include magnetic field strength, magnetic field change frequency, and working fluid flow rate; and controlling the magnetic refrigeration unit and heat exchange unit based on the control parameters for the current moment. This invention enables the entire magnetic refrigeration temperature control system to intelligently respond to environmental changes, maintaining efficient, stable, and precise operation.