关键词: 蒸汽热网, 优化调度, 信息物理融合, 智慧供热

Abstract: With the continuous promotion of “retreat from city into park” policy and the rapid development of the steam heating network in industrial park, the complexity of dispatching heating network has exceeded the capability of quick response and judgment by human experience. To solve this problem, this paper firstly proposes an overall technical scheme of optimal scheduling based on intelligent heating system of steam heating network in industrial park. Secondly, a digital twin topology network model corresponding to the actual heating network is established, and a simulation calculation method of steam heating network is proposed as the prediction and analysis basis of optimal dispatch. Finally, this paper takes a large-scale steam heating network in a printing and dyeing park in Zhejiang Province as research object. In the case of shutting down a heat source, the operation results based on empirical dispatching method and intelligent dispatching method are compared. The results show that the intelligent heating technology accurately realizes the optimal dispatch of the steam heating network in the park. After the optimal dispatch, the maximum deviation between the expected temperature of the dispatch scheme and the actual temperature of the heating network is 2.27%, while the maximum deviation of the pressure is 8.57%. Meanwhile, the empirical dispatching method results in the average pressure drop of user-end steam in the whole network is 0.14 MPa, while that is 0.07MPa under optimal dispatch, which effectively reduce the adverse impact of dispatching scheme on the quality of user-end steam consumption. The results indicate that intelligent heating technology has excellent development potential and application value in the industrial park.

Key words: steam heating network, optimal dispatch, cyber physical integration, intelligent heating