6results about How to "Solve uneven temperature distribution" patented technology

The utility model discloses a main shaft box structure for lathe main shaft cooling, main shaft box body, the axle cavity on main shaft box body is connected through bearing with main shaft, the inner peripheral wall of axle cavity is equipped with medium flow structure, and the beginning of medium flow structure is communicated with at least one medium import end that is equipped with on main shaft box body, and the end is communicated with at least one medium export end that is equipped with on main shaft box body. The utility model can adopt the mode of oil cooling or water cooling, and the heat of main shaft is accelerated to radiate, and better heat dissipation effect can be played together with air cooling. The main shaft box body adopts symmetrical structure, and the structure is simple, and the commonality is strong, and the problem of uneven temperature distribution when temperature rise is solved to a certain extent, thereby reducing the thermal deformation of main shaft.

The utility model discloses a kind of mould temperature control structures for multilayer cold storage board foaming solidification, belong to cold storage board production field. Including mould assembly, the mould assembly includes four groups of frame plates, four groups of frame plates form frame structure, and the frame structure is equidistantly spaced apart and provided with partition plate, the partition plate is formed by the spacing formed by separating frame structure and forms cooling space, and multiple groups of cooling space are provided with multiple groups of transverse vertical arrangement and set up pipeline;Temperature control component, temperature control component includes the water inlet portion being set in the side of frame plate, and the side of frame plate is provided with drainage portion opposite the water inlet portion. A kind of mould temperature control structures for multilayer cold storage board foaming solidification of the application, cooling space is divided by partition plate, and pipeline with gap in transverse and longitudinal arrangement is matched with temperature control component water inlet portion flow regulation, realize each space temperature control, guarantee that cold storage board core material is uniformly solidified;Mounting bracket is conveniently fixed, and the device of mould and temperature control component composition can be vertically spaced apart arrangement, and it is adapted to multilayer synchronous temperature control.

The utility model discloses a raw material annealing furnace for screw production, including outer furnace body, furnace cover and rotation hoisting device, be equipped with inner furnace body in the outer furnace body, and form annular air channel between the outer furnace body inner side wall and the outer side wall of inner furnace body, the inner bottom portion of outer furnace body is installed with heating coil, and the inner side wall of outer furnace body is installed with several heating resistance bands, the inner top of furnace cover is fixed with installation cylinder, and installation cylinder is connected with circulating fan and fairing in proper order under, this fairing stretches into inner furnace body, install motor on the furnace cover, and the motor is connected with the impeller of circulating fan through the transmission shaft, the inner wall of inner furnace body is evenly distributed with several guide vanes that lean to the axis, and the bottom of inner furnace body is equipped with the flow -equalizing plate of open -work. The utility model discloses through the circulating fan of furnace top and conical fairing, cooperate the flow guide plate of furnace wall and the flow -equalizing plate of furnace bottom, form forced convection heat cycle in the furnace, solved the problem of traditional annealing furnace temperature distribution uneven.

This utility model relates to the field of single crystal furnace heating technology, and in particular to an auxiliary heating device for a single crystal furnace. It includes a heating coil fitted inside the outer shell of the single crystal furnace, located above the crucible. The heating coil is composed of at least one layer of ring-shaped, nested tubes, spirally wound along the central axis to form a multi-layered, ring-shaped stack with a central cavity. This utility model enables heat to be uniformly transferred from multiple directions to the area above the crucible, avoiding localized overheating or undercooling. By changing the structure of the heating coil, the problem of uneven temperature distribution is solved. Compared to traditional heating components, it can heat the silicon material more efficiently and uniformly, improving the melting effect of the silicon material and the quality of single crystal growth.

This utility model discloses a combustion chamber for a regenerable coated sand roasting furnace, comprising a combustion chamber body, multiple burners at the top of the combustion chamber body, a conveying shaft with bearings inside the combustion chamber body, and a drive structure in cooperation with the conveying shaft. The conveying shaft has spiral conveying blades, and both ends of the conveying shaft extend outward to the outside of the combustion chamber body, with conveying grooves formed therein. A medium conveying pipe is connected to the conveying grooves via sealed bearings. A heat exchange chamber is provided on the spiral conveying blades, communicating with the conveying grooves. A sand storage box is located at the top of the combustion chamber body, and a sand drop control structure is provided between the bottom of the sand storage box and the combustion chamber body. A medium conveying pipe at the output end is spirally wound around the outside of the sand storage box to form a preheating section. This utility model can preheat the sand core to be coated, while improving the fullness and uniformity of heating.

This invention relates to the technical field of rectifier plate temperature control, and discloses a refrigeration and heating system and its control method for adjusting the temperature of a rectifier plate. The rectifier plate includes multiple sets of parallel flow channel groups, with different flow channel resistances in different sets. The refrigeration and heating system includes a temperature control loop and a circulation loop connected by heat exchange. An ejector device is provided on the circulation loop, with its return side connected to the rectifier plate outlet side. Multiple connecting pipes are provided on the output side of the ejector device, each connecting pipe connecting to a set of flow channel groups on the rectifier plate inlet side. Each connecting pipe is equipped with a first valve, which is used to adjust the flow rate of the circulating medium within the connecting pipe. This invention's refrigeration and heating system and its control method, by adjusting the opening of the first valve, ensures that the total resistance of each flow channel group is the same, thereby solving the problem of uneven temperature distribution caused by uneven flow distribution within the rectifier plate, and thus bringing the actual temperature of each flow channel group closer to the target temperature.