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Additional energy type energy-saving boiler system and energy-saving method

A boiler and energy technology, applied in the field of additional energy boiler systems, can solve problems such as energy waste and poor management level, and achieve the effects of improving combustion efficiency, improving thermal efficiency, and saving primary energy

Inactive Publication Date: 2008-12-17
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

At present, the design efficiency of China's industrial boilers is 80%, which is not much different from the world's advanced level, but due to poor management, the actual operating efficiency is only about 65%, and a lot of energy is wasted

Method used

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  • Additional energy type energy-saving boiler system and energy-saving method
  • Additional energy type energy-saving boiler system and energy-saving method
  • Additional energy type energy-saving boiler system and energy-saving method

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with drawings and embodiments.

[0016] figure 1 It is a schematic diagram of the system of the present invention. The boiler feed water 11 is divided into three paths, the first path is connected to the water inlet of the boiler 1, the second path is connected to the water inlet of the steam generator 2, and the third path is connected to the water inlet of the heat exchanger 5, the heat source of the heat exchanger 5 is the external The energy in the environment; the steam outlet of the above-mentioned steam generator 2 is connected with the inlet of the sub-cylinder 4 through the water separator 3, and the outlet of the sub-cylinder is connected with the multi-stage ejector: that is, the multi-way outlet of the sub-cylinder is respectively connected with the main injector of a single injector. The nozzles are connected, the exhaust pipe of the first-stage injector is connected with the steam outlet...

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Abstract

The invention relates to an additional-energy energy-saving boiler system and an energy-saving method, which belongs to the field of energy-saving and efficiency-increasing technology of boiler. According to ejecting principle, a portion of feed water can absorb heat of an environment heat source or other waste heat at low temperature and under low pressure, and the method can improve the boil efficiency by using the phase-change energy desired for vaporizing a portion of feed water from liquid state to gas state. The system comprises a boiler (1), a steam generator (2), a water separator (3), a gas-distributing cylinder (4), a heat exchanger (5), a heat source (6), a primary ejector (7), a secondary ejector (8), a tertiary ejector (9) and a valve (10). The method and the system can improve the heat efficiency of the boiler to achieve energy conservation and emission reduction.

Description

Technical field [0001] The energy-adding boiler system of the invention belongs to the technical field of boiler energy saving and benefit enhancement. Background technique [0002] The Chinese government proposes that the total discharge of major pollutants in 2010 should be reduced by 10% compared with 2005. This is a major move by the Chinese government to fully implement the Scientific Outlook on Development and has been highly appreciated by the international community. According to the study, due to the rapid growth of China's economy and the relatively weak implementation mechanism of pollution reduction policies, SO 2 Emission reduction relies too much on desulfurization projects in thermal power plants, the construction of urban sewage pipe networks is seriously lagging behind, and there is no effective plan for industrial COD emission reduction. Therefore, it is hopeful but very difficult to achieve emission reduction goals. Platooning is a long-term task. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22D1/20
Inventor 夏文庆
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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