Smoke circulation heat-exchange compound cycle water pipe steam boiler
A technology of circulating water pipes and steam boilers, applied in the field of boilers, can solve the problems of complex production process and high steel consumption, and achieve the effect of reducing steel consumption, weight and weight
Active Publication Date: 2010-06-30
哈尔滨工大格瑞环保能源科技有限公司
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Problems solved by technology
[0004] Aiming at the shortcomings of the existing water tube steam boilers with complex production process and high steel consumption, the present invention provides a flue gas circulation heat exchange compound circulation water tube steam boiler
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[0014] The best embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings. The combustion system of the flue gas circulation heat exchange compound circulation water tube steam boiler includes a grate base 1, a chain grate 2, a coal hopper 3, a furnace 5, a rear arch 14, a left refractory partition wall 27, a right refractory partition wall 36 and a front The partition wall 9 separates the left flue gas passage 28 and the right flue gas passage 35 and the front smoke chamber 7 from the furnace 5 respectively. The rear part of the right flue gas channel 35 communicates with the flue gas outlet 38 . The boiler water pipe system includes the front lower header 4 arranged transversely at the lower part of the front wall, the boiler drum 11 arranged transversely at the upper part of the furnace roof, the rear lower header 16 arranged transversely at the lower part of the rear wall, and the upper left header longitudinally ar...
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The invention discloses a smoke circulation heat-exchange compound cycle water pipe steam boiler, which consists of a chain grate combustion device, a boiler hearth and a boiler water pipe system. The boiler hearth is packed at the inner side of a convection heating surface which adopts the smoke circulation, so that the requirement of heat insulation and temperature preservation can be achieved through a light boiler wall structure, thereby being capable of greatly reducing the weight of the wall of the boiler. The boiler water pipe system adopts a frame structure, and a boiler barrel is supported at the upper parts of a left upper collection box and a right upper collection box of a parallel composite structure of a side water cold wall and a water pipe convection bundle through a steam outlet pipe, so that the weight of the boiler steel bracket is greatly reduced, the steel consumption of the boiler is reduced, and the manufacture and installation technologies are simplified. Meanwhile, as running with a two-working medium natural circulation loop compound cycle mode, compared with the working medium natural circulation mode of the traditional boiler, the boiler greatly increases the reliability of hydrodynamic force.
Description
technical field [0001] The invention relates to the technical field of boilers, in particular to a flue gas circulation heat exchange compound circulation water tube steam boiler. Background technique [0002] A steam boiler is a device that converts chemical energy stored in coal, oil or natural gas into steam. Electric power, machinery, metallurgy, chemical industry, textile, papermaking, food and other industries all need steam boilers to supply a large amount of steam. [0003] At present, the body structure of the steam boiler mainly includes two types of structural types: the fire tube boiler and the water tube boiler. In the small capacity range, fire tube boilers and water tube boilers each have their advantages and disadvantages. But for large-capacity boilers, water-tube boilers have more advantages in terms of structural layout and thermal performance. For many years, the water tube boilers commonly produced and used in my country are traditional furnaces with ...
Claims
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Inventor 董芃
Owner 哈尔滨工大格瑞环保能源科技有限公司