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本文根据我国能源必须以煤为主的方针,根据电厂中必须大量燃用劣质煤,以及需要适应煤种变化的现状,提出了劣质煤能源经济利用的一条途径。即推荐在电站中采用以煤为燃料的、带有高温煤气化器和正压锅炉的气/汽透平联合循环系统的电站装置。文中除对一般的几种以燥为燃料的气/汽透平联合循环系统作了简单的介绍以外,着重对带有高温煤气化器和正压锅炉的气/汽透平联合循环系统加以说明,并对系统中的主要设备,如煤气化装置及其系统、正压锅炉,以及系统的效率进行了详尽地阐述。文中最后指出:作为劣质煤能源经济利用的途径之一,以及为适应电厂煤种变化的需要,采用这种气/汽透平联合循环系统,和采用沸腾炉燃烧技术一样,都有着广阔的发展前途。就目前我国的技术状况来看,都有不断深入地进行研究的必要。
According to our country’s energy must be based on coal-based guidelines, according to the power plant must burn a large number of low-quality coal, and the need to adapt to the status of coal changes, put forward a low-cost coal economic use of a way. That is, it is recommended to use a coal-fired power station with a gas / steam turbine combined cycle system with a high-temperature coal gasifier and a positive pressure boiler in a power station. In addition to the general description of several gas-to-steam combined gas / steam turbine combined cycle systems, a brief description is given of the gas / steam turbine combined cycle system with a high temperature coal gasifier and a positive pressure boiler , And elaborates the efficiency of major equipment in the system, such as coal gasification plant and its system, positive pressure boiler, and system. Finally, the author points out that using this gas / steam turbine combined cycle system as a way to economize the economical utilization of inferior coal and adapting to the change of coal type in power plant has a promising future as well as using boiling furnace combustion technology. . As far as the technical status of our country is concerned, there is a need for continuous and in-depth research.