5results about How to "Even heat distribution" patented technology

The utility model relates to the technical field of heating equipment, and provides a heating device. The heating device comprises a box body, an air blowing component and a heat exchange assembly. Wherein a cavity is formed in the box body, an air outlet is formed in one end of the box body, an air inlet is formed in the other end of the box body, and the air outlet and the air inlet are both communicated with the cavity; the air blowing component is arranged in the cavity and used for forming air flow in the cavity, and the air flow flows from the air inlet to the air outlet; the heat exchange assembly is arranged in the box body and used for conveying heat in the warm air into the cavity. A first cover body is arranged at the air outlet and is used for blocking the air outlet; the air inlet is provided with a second cover body which is used for blocking the air inlet. According to the utility model, the defect that the heating equipment for directionally controlling the warm air in the prior art cannot utilize heat in the warm air is overcome, and the heating equipment which can utilize the heat in the warm air and can directionally and centrally control the flow direction of the warm air is realized.

This invention provides an active heating method and system for a two-dimensional turntable servo mechanism, belonging to the field of laser communication technology. The method includes acquiring the feedback temperature and motor torque of the azimuth or pitch axis; when the motor torque is zero and the difference between the feedback temperature and the preset temperature is outside the preset temperature range, heating is performed by determining a first heating power based on the first d-axis current and the electrical control angle; when the motor torque is not zero and the difference between the feedback temperature and the preset temperature is outside the preset temperature range, heating is performed by determining a second heating power based on the second d-axis current and the q-axis current, until the temperature difference returns to the preset range and heating stops. This invention utilizes the heat generated by the motor's own current to replace external heating devices, achieving uniform heating from within, effectively reducing deformation and frictional torque fluctuations in key moving parts caused by temperature gradients, and improving the turning table's pointing accuracy and thermal stability under extreme temperature changes.

The utility model belongs to 3D printing technical field discloses a kind of high-temperature 3D printers of printable PEEK material, including mobile spray head assembly, box body assembly, lift printing platform, control system, frame, the mobile spray head assembly is installed at the top of box body assembly, the mobile spray head assembly includes printing spray head, wire-feeding mechanism and X axis, Y axis horizontal direction moving part, the outside of printing spray head is provided with water-cooling heat dissipation pipe cover, the wire-feeding mechanism is installed above printing spray head, and the printing spray head is installed on the printing spray head support of X axis, Y axis horizontal direction moving part.The utility model designs the heat preservation cavity of airtight, heating element and air supply element are configured in heat preservation cavity, can manufacture circulating heat flow in cavity, ensure that the heat distribution of printing piece near in cavity is uniform, temperature is reasonable controllable, alleviate temperature gradient phenomenon when printing piece cooling, so that printing piece obtains better forming precision and mechanical property.

The utility model discloses a drying device is washed to high pressure hydraulic pump, including drying box, the both sides fixed leg of drying box are located the right side upper end through bolt fixing and have control box, the centre position of drying box top is set up and has the slot of the through -going structure. The utility model through the heating pipe of spiral type winding structure of distribution has been arranged on the inner box, and the heating pipe can transmit the heat to the workpiece through the transmission hole, can make the element heat distribution more uniform, cooperate the temperature sensor in the inner box, can accurate control temperature, avoid because the heat is too and injures the workpiece, through the multistage hydraulic cylinder of fixed in drying box top, multistage hydraulic cylinder control connecting frame elevating, not only is convenient for the taking of workpiece, easy operation, high efficiency, and the workpiece after drying can directly be placed on the placing table and rise to drying box, after the workpiece cooling, take again, need not the tool to take, avoid the tool to injure the workpiece, improved the security.

The utility model provides a kind of hot blast furnace with good smoke exhaust effect, comprising: outer box, inner box is installed in outer box, the top of inner box is installed with smoke exhaust fan, the air inlet of smoke exhaust fan is communicated with inner box by smoke collection cover, the air outlet of smoke exhaust fan is connected to the outside of outer box by smoke exhaust pipe, the backboard of inner box is set as uniform wind board, hot blast cavity back seal plate is installed in the rear of uniform wind board, hot blast cavity back seal plate is enclosed with uniform wind board, inner box between and form hot blast circulation cavity, first hot blast circulation component and second hot blast circulation component are installed in the hot blast circulation cavity with side spacing, upper electric heating wire row group is installed in the top inner side of inner box, lower electric heating wire row group is installed in the top of inner box bottom, uniform wind orifice plate is installed above lower electric heating wire row group. This hot blast furnace is simple in structure, reasonable in design, has good smoke exhaust effect, and has good hot blast circulation efficiency and the uniformity of baking heat distribution.