Condensation type coal-fired boiler with high heat efficiency and desulfurizing and dedusting functions
A technology for energy-saving and coal-fired boilers, applied in the field of coal-fired boilers and horizontal coal-fired boilers, can solve problems such as low heat exchange efficiency, damage to the environment, and discharge of pollutants, so as to improve thermal efficiency, protect the ecological environment, and avoid pollution Effect
Inactive Publication Date: 2014-12-24
河北盛淼安全技术工程有限公司
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Problems solved by technology
[0004] In addition to low heat transfer efficiency, traditional coal-fired boilers also have the disadvantages of emitting pollutants and damaging the environment
Method used
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[0029] The condensing coal-fired boiler of the present invention comprises a body of furnace 1, a dust removal door 2, a coal feeding door 3, a slag removal door 4, a grate 5, a combustion chamber 6, a heat exchange chamber 7, a chimney 8, a condenser 9 and Dust chamber 10.
[0030]As shown in the figure, the condenser 9 has a water jacket 11 on the top and two side walls of the body of heater 1, and a plurality of condensation pipes 12 are installed in the water jacket 11, and the condensation pipes in the water jacket 11 on the top of the body of furnace of the condenser 9 The inlet of 12 is connected to the flue gas outlet of the dust removal chamber 10 at the rear of the heat exchange chamber 7, and the outlet of the condensing pipe 12 in the water jacket on the top of the furnace body 1 is connected to the inlet of the condensing pipe 12 in the water jacket 11 on both sides of the furnace body 1 , The outlet of the condensation pipe 12 in the water jacket 11 on both side ...
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Abstract
The invention discloses a condensation type coal-fired boiler with high heat efficiency and desulfurizing and dedusting functions, belonging to the technical field of horizontal coal-fired boilers. The condensation type coal-fired boiler is used for remarkably improving the heat efficiency of the coal-fired boiler and desulfurizing and dedusting flue gas. The technical scheme of the invention is as follows: a condenser, a dedusting chamber and a flue heat exchanger are additionally arranged on the condensation type coal-fired boiler, wherein according to the condenser, water jackets are arranged on the top and two side walls of a boiler body; a plurality of condensation pipes are arranged in the water jackets; inlets of the condensation pipes are connected with flue gas outlets; outlets of the condensation pipes are connected with a chimney smoke exhaust opening through a flue heat exchanger; the dedusting chamber is arranged in the boiler body at the rear part of the heat exchange chamber; a desulfurizing pool, a high-pressure pump, a spray pipe and a spray nozzle are arranged in the dedusting chamber; and the flue heat exchanger is arranged at the lowermost part of the rear wall of the boiler and is used for carrying out secondary heat exchange on the flue gas exhausted by the condensation pipe. According to the condensation type coal-fired boiler disclosed by the invention, the condensation technology is applied to the coal-fired boiler, so that the heat efficiency of the coal-fired boiler reaches 80-95 percent level which is unimaginable in a traditional theory, coal resources can be greatly saved and excessively-remarkable economic and social benefits are obtained.
Description
technical field [0001] The invention relates to a coal-fired boiler, in particular to a horizontal coal-fired boiler with excellent thermal efficiency and desulfurization and dust removal functions, belonging to the technical field of horizontal coal-fired boilers. Background technique [0002] Coal-fired boilers are heating and heating equipment, and are currently widely used in industrial enterprise heating and rural heating. According to calculations, the thermal efficiency of general small industrial coal-fired boilers is about 50-65%, and the thermal efficiency of general civil heating furnaces is about 25-32%. The low thermal efficiency of coal-fired boilers has long been a worldwide problem, which is determined by the structure and combustion method of coal-fired boilers. The combustion of coal in the boiler produces a large amount of flue gas. The heat energy in the flue gas of the boiler is composed of two parts: sensible heat and latent heat. Usually, only part of...
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IPC IPC(8): F24H8/00F24H9/00F24H9/18F28F1/34F23J15/04B01D47/06B01D53/78B01D53/60B01D53/62
CPCY02B30/102Y02B30/00
Inventor 李江民谢书生
Owner 河北盛淼安全技术工程有限公司