4results about How to "Large transfer area" patented technology

The utility model discloses a cylindrical fin heater, which comprises a cylindrical flow guide pipe and heat conducting fins, a liquid inlet sealing cover and a liquid outlet sealing cover are respectively screwed and fixed on two sides of the cylindrical flow guide pipe through bolts, and a plurality of groups of heat conducting fins are arranged in the cylindrical flow guide pipe. A plurality of water inlets and water outlets are formed in the liquid inlet sealing cover and the liquid outlet sealing cover respectively, the two ends of the heat conduction fins are communicated with the water inlets and the water outlets respectively, first electric heating pipes are arranged in the heat conduction fins, and second electric heating pipes are arranged at the positions where the heat conduction fins are communicated with the water inlets and the water outlets. A plurality of groups of heat-conducting fins are arranged in a cylindrical flow guide pipe, first electric heating pipes are arranged in the heat-conducting fins, and the heat-conducting fins can increase the heat transfer area, so that heat is more effectively transferred from the electric heating pipes to a flowing liquid medium, accumulation of the heat on the surface of the heater is reduced, and the efficiency of transferring the heat to a target area is improved; and energy waste is reduced.

The present application relates to the technical field of gate valves, and discloses a low-temperature wedge-type single-box gate valve, including a valve body, a support frame provided on the valve body, a valve stem slidably connected in the support frame, a sealing block provided between the valve stem and the support frame, and a cooling ring provided on the support frame, the cooling ring surrounds the circumference of the support frame, and the diameter of the cooling ring is larger than the diameter of the support frame. In the present application, the cooling ring surrounds the circumference of the support frame, and the diameter of the cooling ring is larger than the diameter of the support frame, so that the low temperature of the medium needs to be transferred on the cooling ring, increasing the transfer area of ​​heat exchange, so that the low temperature of the medium can absorb sufficient heat during the heat exchange process, greatly increasing the temperature of the sealing block after heat exchange, reducing the phenomenon of icing of the sealing block, thereby enabling the sealing block to be used normally and allowing a stable seal between the valve stem and the support frame.

This invention discloses a rear frame structure for a vehicle cargo box and its assembly method, belonging to the field of automotive manufacturing technology. The structure connects the cargo box crossbeam assembly and the rear outer panel assembly to form a composite beam, with three-dimensional limiting socket interfaces at both ends. The left and right rear pillar assemblies of the cargo box are equipped with matching sockets, which can be inserted vertically into the interfaces to achieve automatic guidance and horizontal limiting, greatly simplifying assembly. After socketing, a combination of internal welding and external bolts ensures strength and utilizes bolt preload to actively level surface differences. The cargo box crossbeam assembly adopts a U-shaped cross-section design, with built-in support plates and pre-set suspension mounting points, improving overall rigidity and assembly accuracy. This invention effectively solves the problems of poor welding quality, low assembly accuracy, and poor appearance matching in traditional cargo box rear structures.

The present invention relates to the field of household appliances, and in particular to a retractable and adjustable shoe tree and supporting method of a shoe drying machine and the shoe drying machine thereof, comprising a plurality of retractable heat transfer tubes, the top end of the heat transfer tube being rotatably connected with a bearing part, the bearing part being hollow, the hollow part constituting a heat transfer cavity, the transfer cavity being communicated with the heat transfer tube, and the surface of the bearing part being provided with a transfer hole being communicated with the transfer cavity, a gear adjustment device being provided between the bearing part and the heat transfer tube, and the gear adjustment device being used to control the angle of the bearing part relative to the heat transfer tube; the present invention is that: the shoe tree with an adjustable bearing part angle can effectively open the shoe opening when the shoes to be dried are fixed on the shoe tree, and the shoe upper and the shoe sole are opened at the maximum angle on the shoe tree, no matter it is a long boot or any other type of shoes except the long boot, so that the upper of the long boot is prevented from being attached to the outer wall of the heat transfer tube, air convection between the inside of the shoe and the outside is realized, and the damage to the heat transfer tube and the shoes is effectively avoided.