5results about How to "Eliminate overheating" patented technology

The application discloses a multi-channel shaft kiln for calcining magnesite, wherein a distributing vehicle and a discharging device are located at the top and bottom of a kiln body. The kiln body is provided with a preheating section, a calcining section and a roasting section from top to bottom, and square strip-shaped channels are arranged in the kiln. A combustion chamber is arranged in the furnace wall on both sides of the calcining section with a width of 40-80 cm, the combustion chamber is built by hollow integral combustion bricks, the combustion chamber is communicated with the calcining section by cross-distributed through holes, the through hole outlet is downwardly inclined, and an inclined convex block is arranged at the top. The lower part of the roasting section is provided with an upper collecting opening and a lower expanding opening structure, an air pressure pipe is arranged in the inclined brick of the upper collecting opening, the opening of the air pressure pipe is downwardly inclined and communicated with the roasting section, and the lower expanding opening is matched with the upper semicircular surface of the discharging device. The middle part of the upwardly inclined distributing main pipe of the distributing vehicle is communicated with the branch pipe which is inclined and changed in direction, and a change valve is arranged in the main branch pipe. The application provides a comprehensive solution of the shaft kiln with high calcining quality, energy saving, low investment and long service life for calcining magnesite, and can also be used for high-quality calcining of small-particle materials.

The utility model provides a kind of heterojunction cell screen printing process gradient solidification heat cycle oven, including two support frames, several array distribution transmission shafts are rotatably equipped between the support frames of two sides, the transmission shaft outer end surface is fixedly connected with sprocket, transmission chain belt is wound between the sprocket of each side, two bearing basket frames are installed in the top end of transmission chain belt, several battery pieces arrayed from top to bottom are inserted in the bearing basket frame. The scheme is through three-zone gradient temperature control (150℃→200℃→180℃), and combines temperature-time-resistivity multi-objective optimization algorithm, the low-temperature silver paste solidification time is shortened from traditional 45~60 minutes to 19 minutes, the unit energy consumption is significantly reduced while the production capacity is significantly improved.

The utility model relates to the technical field of solar storage battery temperature control, in particular to a solar storage battery sensing temperature control self-heating system which comprises a protection box, a heating load module is arranged in the protection box, a storage battery is placed in the heating load module, and the storage battery is arranged in the protection box. A pulse generation and control module electrically connected with the heating load module is arranged at one end of the outer side wall of the protection box, and a temperature collection and feedback module is arranged in the middle of the side wall of the heating load module. The pulse generation and control module is combined with the PWM controller, so that the dynamic adjustment of the pulse frequency and the duty ratio is realized, the heating power can be accurately controlled according to the real-time temperature feedback, the energy consumption is obviously reduced, and the system adaptability is improved; a grid frame structure consisting of transverse and longitudinal PTC heating sheets is adopted, and a silica gel heat diffusion layer (the heat conductivity coefficient is greater than or equal to 3W / m.K) is combined, so that rapid and uniform transfer of heat is ensured.

This invention relates to the field of catalyst technology, specifically to a solid acid catalyst for post-etherified C4 olefin trimers, its preparation method, and its application. The catalyst comprises at least a metal salt active component, diammonium hydrogen phosphate, and a catalyst support; the metal salt active component includes aluminum sulfate and ferric sulfate; the molar ratio of phosphate ions in the diammonium hydrogen phosphate to metal cations in the metal salt active component is nPO4. 3‑ / n(Al 3+ +Fe 3+ The total amount of metal salt active components and diammonium hydrogen phosphate in the solid acid catalyst accounts for 5-10% of the total mass of the solid acid catalyst. By optimizing the formulation and process of the solid acid catalyst, the problems of easy mudding and clogging of existing solid phosphoric acid catalysts, easy carbon deposition and deactivation of molecular sieve catalysts and complex process operation, and high cost of ionic liquid catalysts are effectively solved, so as to better meet the production and application needs of post-etherified C4 olefin trimers.

This application provides a battery thermal management control method, apparatus, electronic device, and storage medium. The method acquires the cell temperature generated by Joule heating within the battery device and the surface temperature of the battery top cover. If a first difference between the surface temperature and the cell temperature is greater than a preset temperature threshold, the battery device is heated to increase its temperature, and the surface temperature is corrected based on a first temperature correction coefficient to make the first difference less than or equal to the preset temperature threshold. If a second difference between the cell temperature and the surface temperature is greater than the preset temperature threshold, the battery device is cooled by heat dissipation, and the surface temperature is corrected based on a second temperature correction coefficient to make the second difference less than or equal to the preset temperature threshold. By combining heating or heat dissipation with a temperature correction coefficient, temperature fluctuations are controlled within the preset threshold, effectively avoiding battery performance degradation caused by temperature deviations, minimizing the risk of localized overheating or overcooling of the cell, and reducing the probability of thermal runaway.