Connection device for high-temperature flue gas pipeline and low-temperature flue gas pipeline of medium-storage bituminous coal boiler
A high-temperature flue gas and connecting device technology, which is applied in the direction of exhaust gas exhaust devices, combustion product treatment, combustion methods, etc., can solve problems such as hidden dangers, inerting safety of flue gas, etc.
Active Publication Date: 2016-06-15
STATE GRID CORP OF CHINA +1
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[0004] Purpose of the invention: The present invention provides a connecting device between the high-temperature flue gas pipeline and the low-temperature flue gas pipeline of a mid-storage bituminous coal boiler.
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[0017] The specific embodiment: the present invention will be further described below in conjunction with accompanying drawing:
[0018] Such as figure 1 As shown, the present invention provides a connecting device for high-temperature flue gas pipes and low-temperature flue gas pipes of medium-storage bituminous coal boilers, including an induced draft fan 1 and a hot furnace flue gas pipe 2. The air inlet of the compressor 3 leads out the low-temperature cold furnace smoke pipe to the hot furnace smoke pipe from the air outlet of the booster fan. The low-temperature cold furnace smoke pipe connected to the hot furnace smoke pipe goes deep into the inside of the hot furnace smoke pipe by an average of 150mm or inserts the center of the cold furnace smoke pipe into the center of the hot furnace smoke pipe. A cross flat steel 333 is arranged at the outlet where the low-temperature cold furnace smoke pipe penetrates into the hot furnace smoke pipe. The direction in which the l...
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The invention provides a connecting device for a high-temperature flue gas pipeline and a low-temperature flue gas pipeline of an intermediate storage type bituminous coal boiler. The connecting device for the high-temperature flue gas pipeline and the low-temperature flue gas pipeline of the intermediate storage type bituminous coal boiler solves the problem of key technology needed in construction of a gas inerting and drying system, enables the shape of a connector of the high-temperature flue gas pipeline and the low-temperature flue gas pipeline to be specially designed, solves the problem of safety potential risks of an existing flue gas inerting and drying method and the problems of thermal expansion, sealing and stress in different directions when the high-temperature flue gas pipeline and the low-temperature flue gas pipeline are connected, and enables an overall design of the flue gas pipelines to be finished.
Description
technical field [0001] The invention relates to a connection device between a high-temperature flue gas pipeline and a low-temperature flue gas pipeline of a medium-storage bituminous coal boiler, and is a new design technology for the interface between the high-temperature flue gas pipeline and the low-temperature flue gas pipeline. Background technique [0002] In recent years, with the development of the national economy, the demand for electricity has grown rapidly, and the demand for coal has soared; coal prices have risen sharply year by year; coal resources in Northeast China have become increasingly exhausted; moreover, this contradiction will continue for a long time in the future; The power generation company is looking for a coal type that is low in price and can ensure a large amount of long-term stable supply; the lignite reserve in the eastern Mongolia area is abundant, the coal source is sufficient, and the transportation distance is short, and the price is rel...
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IPC IPC(8): F23J13/04
Inventor 吴景兴邹天舒王力冷杰蒋翀张幼明由庆安李宏毅梁明文苏东刘学增张振杰王文生高继录袁德权李彦龙张家维綦明明丛日成徐绍宗李含琼李伟佳李健郝佳伍志朋
Owner STATE GRID CORP OF CHINA