To obtain images with high signal-to-noise ratio (SNR), a ultraviolet imaging system is developed based on a scientific grade CCD (CCD47-20) which is sensitive on ultraviolet. The imaging system can quickly image flames of burning solid fuel at particular ultraviolet waveband. CCD47-20 has deeper potential sell, which guarantees SNR of the imaging system. However, the exposure time of these CCD is usually above 200 ms. To realize quick exposure on target, a CCD driven timing sequence with twice-frame-transfer and once-horizontal-readout is designed based on the analysis of performance and working principle of CCD47-20. The design of imaging system is finished, and the exposure time of CCD is reduced to 10 ms. The irradiation test of the system is carried out in the laboratory. The results show that when exposure time changes, the responsivity of CCD is linear, which verifies the correctness of design of timing sequence and driven circuit. SNR test results show that the SNR of the system can reach 46.8 dB. Flames of burning fuel in the specified ultraviolet waveband are imaged using the ultraviolet imaging system. Shapes of flames are captured, which validates the fast exposure performance of ultraviolet imaging system.