4 results about "Microwave tube" patented technology

The application discloses a preparation method and application of a microwave-regulated MXene-based in-situ oxidation composite gas-sensitive material, and belongs to the technical field of gas sensing materials and functional nanomaterials. The method comprises the following steps: placing MXene in a microwave tube furnace device, and performing sintering treatment under the action of microwaves to obtain the MXene-based in-situ oxidation composite gas-sensitive material; wherein the microwave action conditions are as follows: the microwave frequency is 2.45 GHz, the microwave power is 1000-1800 W, and the treatment time is 10-40 minutes; and the sintering treatment temperature is 300-600 DEG C. The method has the advantages of simple process, short cycle and strong controllability, and is suitable for controllable preparation and performance optimization of the MXene-based gas-sensitive material.

This utility model discloses a high-power microwave generator for MPCVD, including a microwave pipeline. A mounting base is fixedly installed on the upper surface of the microwave pipeline, and a connecting base is fixedly installed on the upper surface of the mounting base. A pin is provided inside the connecting base, and a retaining ring is provided on the outside of the pin. An inlet pipe is fixedly installed on one side of the retaining ring, and an accelerated cooling component is provided at one end of the inlet pipe. This utility model, by setting up an accelerated cooling component, introduces a cooling medium into the connecting pipe. The cooling medium flows from the connecting pipe into the accelerating head, and is sprayed through multiple nozzles to form a vortex. The cooling medium in the vortex state is accelerated and then flows into the flow tank. The conical flow tank further accelerates the cooling medium. The cooling medium, subjected to secondary acceleration, flows from the inlet pipe to the retaining ring, and then from one of the sealed cavities of the retaining ring to the cooling channel, cooling the pin and preventing uneven temperature distribution inside the pin.

This invention provides a rectangular input waveguide and its design method. The rectangular input waveguide includes an input waveguide, an output waveguide, N tapered segments arranged along a first direction, and intermediate segments located between adjacent tapered segments. The first direction is the direction from the input waveguide to the output waveguide, where N > 1. The short side dimensions of each tapered segment gradually decrease, while the short side dimensions of each intermediate segment remain unchanged. The method includes changing the height of each tapered segment and the height of each intermediate segment to ensure that the standing wave ratio (SWR) of the rectangular input waveguide is less than a first preset threshold and the return loss is greater than a second preset threshold. This design method enables the miniaturization of the rectangular input waveguide while meeting the requirements for microwave SWR and return loss, thereby allowing nearly 100% of the output power of an external microwave source to be transmitted into the microwave tube to establish an electromagnetic field of appropriate intensity.

The utility model relates to juice quick thawing technical field discloses a kind of juice quick thawing microwave tank, including thawing tank, the thawing tank top end is fixedly connected with feed hopper, the thawing tank top end inner wall both sides are rotatably connected with rotating rod, the rotating rod outer wall is fixedly connected with crushing roller, the rotating rod outer wall right side is fixedly connected with transmission gear, the transmission gear between both sides is engaged, the thawing tank left end is fixedly connected with support frame.In the utility model, by second rotating rod when rotating will drive driving bevel gear, driving bevel gear and driven bevel gear meshing, so that driven bevel gear also starts to rotate, and then drive first rotating rod rotation.First rotating rod when rotating will drive connecting plate, and connecting plate will drive microwave tube rotation.Microwave tube in the process of rotation, the juice ice block in thawing tank is uniformly thawed, can improve thawing efficiency, while avoid local overheating caused juice metamorphic.