3 results about "Long gap" patented technology

The invention discloses a furnace end capable of exciting high-energy plasma through long-distance discharge and an electric flame stove. The furnace end comprises an upper shell, a lower shell, a plurality of plasma combustors, a magnetron and a furnace end fan, wherein the upper shell and the lower shell define a furnace end cavity. According to the microwave-driven gas ionization device, the breakdown working voltage between the anode needle and the cathode tube which are arranged at a long interval is reduced by microwave-driven gas ionization, and the problem of circuit instability is avoided; the magnetron stops working immediately after electrode arc striking succeeds, a special power supply and a cooling system can be omitted, and the failure rate is reduced; the two electrodes are arranged at a long interval, so that the number of times of electron collision is increased by several times, and compared with the prior art, the plasma density is improved, the efficiency is greatly improved, and the electric quantity is saved; the magnetron is directly installed between the upper shell and the lower shell of an existing metal structure of the burner, microwave leakage is effectively prevented, the magnetron does not need to be additionally provided with a shielding piece, the stability of the electric flame stove is effectively improved, and the limited space of the electric flame stove is effectively utilized.

The invention discloses a three-dimensional dynamic reconstruction method for a long-gap discharge channel, and the method comprises the steps: collecting a multi-view synchronous image sequence of a discharge process through at least two cameras which are disposed on the same plane and are synchronously triggered, carrying out the graying, binaryzation and time correction processing of a synchronous image group at each time point, and carrying out the calculation of the multi-view synchronous image sequence. Obtaining a binarized image with time alignment; performing visual angle correction on the image, and extracting discharge channel edge points line by line in the corrected image to form an edge point set; then, constructing an overdetermined equation set by utilizing the edge point set based on epipolar constraint, and solving through singular value decomposition to obtain a three-dimensional space coordinate set; and finally, generating a three-dimensional static model of a single time point by calculating central points and radiuses of sections with different heights, and combining the static models of continuous time points in sequence to finally reconstruct a three-dimensional dynamic model of the discharge channel. According to the method, high-precision and high-efficiency three-dimensional dynamic reduction of the transient evolution process of the discharge channel is realized.