| In this paper, the seal structure of EC-1301 cracked gas compressor in Daqing petrochemical company is looked as research object, and the mathematical model is established, adopting advanced principle of dry gas seal. Calculated procedure of dynamical pressure is compiled. Dry gas sealed section is numerically analyzed applied finite element method. By means of optima] design, the optimal structured parameter of tunnel is gained and dry air seal and dry air seal control system matching the spot use are designed. Simulation test is done and theoretical analysis is amended according to the spot work.. Field test getting to design indicator is finally completed. In the paper, the effect of major parameter to seal effectiveness is detailed analyzed.The comparing with the technical parameter of the same foreign product indicates that the technical parameter and performance of dry gas seal autonomously designed already approach or reach advanced international level. The product fills a domestic blank and applies theory gist and elements to remolding the seal of compressor. |
