49results about How to "Uniform and constant temperature" patented technology

The invention discloses a domestic dish warming machine. The domestic dish warming machine comprises a housing (7), wherein an air circulation heating device is arranged at the side part of the housing (7), and a heating bottom plate (8) with a built-in heating module is arranged at the bottom of the housing (7); and the air circulation heating device and the heating module of the heating bottom plate are connected on a power supply in parallel. The domestic dish warming machine has the advantages of high heating efficiency and uniform and constant temperature at all points in an inner cavity.

The invention discloses a tea leaf aroma improving machine and a tea leaf intelligent control aroma improving pattern. The tea leaf aroma improving machine comprises a box body, a heating device, a temperature and humidity sensor and a fuzzy PID controller. The control pattern is provided based on the tea leaf aroma improving machine. The control pattern applies a self-adapted fuzzy PID technology, and combines properties of physical and chemical changes of tea leaves in an aroma improving technology; a control mathematic model is established through an intelligent control algorithm and an aroma improving machine control system is planted; the control pattern is adjusted by verification of specific experiments. The control pattern can be used for machining given tea leaves, and can detect the moisture content and the feeding amount; the control system can be used for automatically calculating and adjusting equipment to reach optimal temperature and humidity; or technological parameters of the aroma improving machine on a control interface, such as temperature, time and the opening degree of a humidity discharging hole, can be directly set, and the technological parameters of a plurality of sections in an operation process also can be modified. Therefore, the intelligence of aroma improvement of the tea leaves is realized on the basis of guaranteeing the tea making effect.

The invention relates to a vertical modified stir ball-milling reactor for reinforcing polysaccharide polymers, and a stirring shaft is driven by a drive unit through a coupling. The reactor further comprises a cylinder cover plate, a grinding inner cylinder, a lining plate, a funnel type material feeding port, a material discharging port and grinding balls. A stirring blade set composed of inclined plate blades and an S-shaped spiral blade is mounted on the stirring shaft, the inclined plate blades are mounted on the stirring shaft in parallel, and the S-shaped spiral blade is vertically mounted on the stirring shaft; and a plurality of through holes for grinding balls in the grinding inner cylinder to pass through are arranged on the inclined plate blades. According to the reactor, the stirring blade set is added, so that materials can be mixed evenly, and accordingly, the production efficiency is improved. Simultaneously, the stirring shaft and the S-shaped spiral blade are manufactured into hollow structures, and fed cooling substances are helpful for keeping the temperature to be uniform and the constant-temperature reaction field; and the bottom of grinding inner cylinder is hemispherical, so that grinding dead angles are avoided.

The invention relates to a phase-change coupling bionic fin type automobile exhaust waste heat step power generation system. The system comprises an inner layer heat conduction structure, a middle semiconductor temperature difference power generation module and an outer layer fin radiator. The inner layer heat conduction structure is tightly attached to the outer wall of an exhaust pipe of an automobile, and the whole body of the inner layer heat conduction structure is in a hexagonal prism shape so as to supply a flat attachment point for the temperature difference power generation module; the heat conduction structure is filled with phase-change material fused salts so that the temperature of the outer wall of the heat conduction structure is uniform and constant and the heat in the automobile exhaust waste is accumulated. The middle semiconductor temperature difference power generation module employs a dual-layer design, the inner layer power generation module and the outer layer power generation module select different thermoelectric materials according to respective actual working temperature areas, and the optimal working temperature areas of the two power generation modulesare matched with the actual temperature areas of the two power generation modules so that the two layers of power generation modules work at the optimal temperature, and the cascade utilization of theautomobile exhaust waste heat is achieved. The outer layer fin radiator adopts a leaf-shaped bionic structure, and forced convection heat dissipation is performed by utilizing air flow generated whenan automobile runs. The automobile exhaust can be used for generating power, and the waste heat utilization of the exhaust is achieved.

The invention relates to a thermal treatment device of a field joint of a steel containment of a nuclear power plant and a thermal treatment method, belonging to the technical field of construction of the nuclear power plant. The device mainly consists of a main framework (Z-1), heating insulators (Z-2), a traveling mechanism (Z-3), a temperature sensing apparatus (Z-4) and an automatic temperature controller (Z-5). During thermal treatment, the traveling mechanism of the thermal treatment device is supported at the upper edge of a wall plate of the containment and is moved along the upper edge, so that the heating insulators on both sides of the wall plate of the containment are located in a position for clamping the to-be-thermally-treated joint. Then, the temperature sensor is installed at the to-be-thermally-treated joint. After an electric heating apparatus is connected, under the closed loop control of the automatic temperature controller, the joint is heated to a predetermined temperature. According to the invention, the insulating cotton, the electric heating apparatus and the joint are compactly attached, and the joint quality is remarkably improved and the welding period is remarkably shortened by guaranteeing the thermal treatment quality and efficiency.