Flue gas waste heat depth cascade utilization system
A flue gas waste heat, deep technology, applied in water heaters, fluid heaters, greenhouse gas reduction and other directions, can solve the problems of not meeting the needs of use, waste heat loss, reducing waste heat utilization efficiency, etc., to avoid heat loss and meet the needs of use. demand, the effect of improving the efficiency of waste heat utilization
Inactive Publication Date: 2019-05-17
大唐东营发电有限公司
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Problems solved by technology
[0003] The existing flue gas waste heat utilization is to use long pipes to introduce the flue gas and utilize the waste heat of the flue gas, which will lead to the loss of waste heat during the process of pipe guidance, thereby reducing the efficiency of waste heat utilization and cannot meet the needs of use
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] see Figure 1-2 , the present invention provides a technical solution: a system for utilizing flue gas waste heat in depth, including a boiler flue gas outlet 3, a waste heat recovery box 2 is fixed above the boiler flue gas outlet 3 through a fastening sleeve 24, and the The top threaded cover of the waste heat recovery box 2 is provided with a threaded cover 1, and the top end of the threaded cover 1 is fixedly inserted with a smoke guide pipe 6, and ...
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The invention discloses a flue gas waste heat depth cascade utilization system. The flue gas waste heat depth cascade utilization system comprises a boiler flue gas outlet, a waste heat recovery box fixedly sleeves the upper part of the boiler flue gas outlet through a fastening sleeve, the top end of the waste heat recovery box is covered with a thread cover in a threaded mode, a smoke guide pipeis fixedly inserted at the top end of the thread cover, the tail end of the smoke guide pipe communicates with a secondary waste heat utilization cavity, and the second stage waste heat utilization cavity is formed in a heat preservation box; and a first stage waste heat utilization cavity is formed in the waste heat recovery box. A waste heat utilization frame is suspended in the boiler flue gasoutlet, the first stage waste heat utilization cavity concentrates heat in flue gas, water injected in the waste heat utilization frame is directly in contact with the flue gas in a boiler, the wasteheat utilization frame is composed of interlaced inner cavity plates, the contact area with the flue gas waste heat is effectively increased, so that the flue gas heat is directly and quickly absorbed, the heat loss caused by the long time flow of the flue gas is avoided, and the using requirements are met.
Description
technical field [0001] The invention relates to the technical field of waste heat recovery, in particular to a system for deep cascade utilization of waste heat of flue gas. Background technique [0002] Flue gas waste heat is a kind of industrial waste heat. The recovery and utilization of flue gas waste heat is a new way to improve the utilization rate of waste heat resources and tap the energy-saving potential. According to the data, the energy consumption in my country's industrial field accounts for about 70% of the total energy consumption in the country. %, the average unit energy consumption of major industrial products is about 30% higher than the international advanced level. In addition to factors such as relatively backward production technology and unreasonable industrial structure, the low utilization rate of industrial waste heat is also an important reason for high energy consumption. my country's energy utilization rate is only about 33%, about 10% lower tha...
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IPC IPC(8): F23J15/06F23J15/02F24H1/00
CPCY02E20/30
Inventor 孙景福倪培林李立东周亦平张明朝杨伟宏刘钰
Owner 大唐东营发电有限公司