Air supplying system and method of experiment table of small supercharged boiler

A pressurized boiler and air supply system technology, which is applied to steam boilers, combustion methods, steam boiler accessories, etc., can solve the problems of increasing the difficulty of space layout, increasing the complexity of the system, and small steam output, so as to achieve rapid response of electric regulation , save energy, reduce the effect of steam pipeline

Inactive Publication Date: 2014-03-12
HARBIN ENG UNIV
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  • Summary
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For small supercharged boilers, the steam output is small and the space occupied is small. The installation of auxiliary steam turbines and supporting reducers and motors increases the complexity of the system, and the related steam pipelines also increase the difficulty of space layout.

Method used

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  • Air supplying system and method of experiment table of small supercharged boiler

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Embodiment Construction

[0015] Such as figure 1 As shown, the air outlet of the supercharger 2 is connected to the air inlet of the supercharger boiler 1 through the pipeline, and the flue gas outlet of the supercharger boiler 1 is connected to the flue gas turbine 3 through the pipeline, and the flue gas turbine 3 is coaxially fixed with the supercharger 2. The air outlet of the Roots blower 4 is connected to the air inlet of the booster boiler 1 through a pipeline.

[0016] A regulating valve 10 is provided on the pipeline between the flue gas outlet of the booster boiler 1 and the flue gas turbine 3 to regulate the furnace pressure of the booster boiler. On the pipeline between the outlet of the Roots fan 4 and the air inlet of the booster boiler 1 Equipped with regulating valve.

[0017] A pressurized air bypass line 6 is connected between the supercharger 2 and the smoke exhaust line 5, and a regulating valve 7 is arranged on the pressurized air bypass line 6; The bypass pipeline 8 of the Root...

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Abstract

The invention relates to an air supplying system and method of an experiment table of a small supercharged boiler. The air supplying system comprises a supercharger and the supercharged boiler, wherein an air outlet of the supercharger is connected with an air inlet of the supercharged boiler by a pipeline. The air supplying system is characterized by comprising a flue-gas turbine and a roots blower, wherein a flue-gas outlet of the supercharged boiler is connected with the flue-gas turbine by a pipeline; the flue-gas turbine is coaxial to the supercharger; an air outlet of the roots blower is connected with the air inlet of the supercharged boiler by a pipeline. The air supplying system has the advantages that the roots blower provides high-pressure air for the supercharged boiler to start the supercharged boiler; the air is compressed into supercharged air by the supercharger, the supercharged air enters the supercharged boiler, high-temperature flue gas exhausted by the supercharged boiler pushes the flue-gas turbine to do work, the flue-gas turbine converts heat of the high-temperature flue gas into kinetic energy and then drive the supercharger.

Description

technical field [0001] The invention relates to an air supply system and an air supply method for a small pressurized boiler test bench. Background technique [0002] In the supercharged boiler, rely on the supercharger to provide pressurized air with a pressure of 0.2-0.3MPa for the furnace. The supercharged combustion makes the supercharged boiler have a larger furnace heat load than the normal pressure boiler, which strengthens the combustion and heat exchange. However, the high-temperature flue gas produced by the combustion of pressurized air and fuel in the furnace has not been effectively utilized. The power of the flue gas turbine cannot meet the power requirements of the turbocharger, which generally occurs under low load conditions. At this time, it is necessary to consume superheated steam to drive the auxiliary steam turbine to make up the power. The steam turbine becomes the main power source for driving the turbocharger unit. The steam consumption of the steam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B37/00F23L1/00
Inventor 李晓明吴浩宇张国磊杨龙滨宋福元孙宝芝李彦军张鹏姜洋刘晓英于晶李基凤
Owner HARBIN ENG UNIV
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