An integrated device for flue gas purification and heat exchange
A flue gas purification and heat exchange tube technology, applied in waste heat treatment, climate sustainability, lighting and heating equipment, etc., can solve problems such as increased equipment investment cost, difficulty in waste heat recovery, low heat exchange efficiency, etc., to improve energy High utilization rate, high waste heat recovery rate, and the effect of reducing sedimentation
Active Publication Date: 2019-02-19
INST OF PROCESS ENG CHINESE ACAD OF SCI
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Problems solved by technology
If the flue gas is dedusted first, it is necessary to cool the flue gas. The main methods are water spray cooling and cold air cooling. These methods not only increase the investment cost of the equipment, but also lead to a large amount of heat loss, resulting in huge energy consumption. waste
[0004] In summary, the above two methods have problems such as difficulty in waste heat recovery, low heat exchange efficiency, and complicated dust removal process. Therefore, a new type of flue gas purification and heat exchange integrated device is urgently needed to solve the existing problems.
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[0026] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0027] Preferred embodiment:
[0028] This preferred embodiment discloses an integrated device for flue gas purification and heat exchange. Such as figure 1 As shown, the flue gas purification and heat exchange integrated device includes a shell 1, a thermal insulation layer 2 attached to the inner wall of the shell 1, a flower plate 6 that divides the shell 1 into a dust collection chamber and a clean air chamber, and an insert The ceramic filter membrane tube 3 connected to the flower plate 6, the heat exchange tube 4 placed in the ceramic filter membrane tube 3, the cover plate 11 covered above the opening of the ceramic filter membrane tube 3, and the cover plate 11 for fixing the heat exchange tube 4 The fixed frame 9 and the ash unloading valve 14 located at the bottom of the housing 1 .
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The present invention discloses a flue gas cleaning and heat exchange integrated device, which belongs to the technical field of flue gas waste heat recovery devices and is designed to solve the problems of difficult waste heat recovery, low heat exchange efficiency, complicated flue gas dust removal process and the like of an existing device. The flue gas cleaning and heat exchange integrated device provided by the present invention comprises a housing, a tube nest that divides the housing into a dust collection chamber and a gas cleaning chamber, ceramic filtering membrane tubes and heat exchange tubes disposed in the ceramic filtering membrane tubes, wherein a flue gas inlet pipe and a flue gas outlet pipe are disposed at two sides of the housing, respectively; the flue gas inlet pipe communicates with the dust collection chamber, while the flue gas outlet pipe communicates with the gas cleaning chamber; and one end of each heat exchange tube is connected to a heat exchange medium feed pipe, while the other end of the heat exchange tube is connected to a heat exchange medium discharge pipe. The flue gas cleaning and heat exchange integrated device provided by the present invention is high in waste heat recovery, high in heat exchange efficiency and simple in flue gas dust removal process, and is of great significance to energy conservation and environmental protection.
Description
technical field [0001] The invention relates to the technical field of flue gas waste heat recovery devices, in particular to an integrated device for flue gas purification and heat exchange. Background technique [0002] The flue gas emitted by industrial furnaces in metallurgy, electric power, building materials and other industries usually has a temperature of up to 600°C. In order to improve energy utilization efficiency and protect the environment, at present, some devices need to be used to recycle the waste heat of flue gas. [0003] The high-temperature flue gas emitted by industrial kilns has a huge dust content and fine dust particles. Therefore, it is difficult to recover the waste heat of the high-temperature flue gas emitted by industrial kilns. When the heat exchanger for waste heat recovery is placed at the front end of the dust collector, the temperature of the flue gas is high so that effective waste heat recovery can be carried out. However, in the heat exc...
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IPC IPC(8): F27D17/00
CPCF27D17/004F27D17/008F27D2017/007Y02P80/15
Inventor 刘开琪任小勇张会军陈运法
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI