Rapidly-opened/closed check valve device for gas pipeline

A technology of gas pipelines and check valves, applied in the direction of pipe components, pipes/pipe joints/pipe fittings, granular/powdered fuel gasification, etc.

Inactive Publication Date: 2011-05-25
顾鸣海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gas pipeline check valve itself is difficult to solve, and it needs to be opened and closed quickly

Method used

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  • Rapidly-opened/closed check valve device for gas pipeline

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Embodiment Construction

[0018] Attached below figure 1 The structure and working principle of the patent of the present invention are further described.

[0019] The patent of the present invention includes a fluidized bed or spouted bed device 12 connected up and down and multiple fly ash gasification devices 10 and 11 . The coal bunker 2 is sent into the furnace by the screw coal feeder 7 through the interconnected coal locks 3 and 5 and star valves 4 and 6 . The coal inlet pipes 8 and 9 communicate with the dense phase area of ​​the fluidized bed, and the coal inlet pipes are also provided with blowing gas. The multiple fly ash gasification devices 10 and 11 are in communication with a primary cyclone dust collector 18 . An outlet of the primary cyclone dust collector communicates with the dense phase zone 12 of the fluidized bed through a high temperature ball valve and a rotary leg. The other outlet of the primary cyclone dust collector 18 communicates with the secondary cyclone dust collecto...

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Abstract

The invention discloses a check valve device for a gas pipeline, which can be used for a fluidized bed and spouted bed combustion and gasification device for a solid fuel containing carbon and hydrogen and aims to solve the problems of great fly ash amount, high carbon content and low coal utilization rate of the fluidized bed and spouted bed combustion and gasification device for the solid fuel. The device consists of a feeding unit, a pressurized fluidized bed and spouted bed unit, a fly ash treatment unit and a fly ash circulation unit, and is prominently characterized in that: a coal multiple-gasification device for fly ash treatment is arranged in the fluidized bed and spouted device for the solid fuel, thereby greatly reducing the fly ash amount and the carbon content of fly ash in a coal gas, increasing the coal utilization rate and increasing effective gas compositions of the coal gas. The device can be widely applied to the combustion or gas preparation and oil preparation of coal, oil shale or other organic wastes, ammonia preparation and C1 chemical industry, and is applicable to a pressurized fluidized bed combustion (PFBC) boiler and a coal gasifier as well as in the field of gas and steam combined cycle (IGCC).

Description

technical field [0001] The patent of the present invention relates to a gasification and combustion device for a solid fuel containing carbon and hydrogen (hereinafter can be simplified as coal), in particular to a gas pipeline in a solid fuel gasification or combustion device of a fluidized bed and a spouted bed A check valve device system with quick opening and quick closing. Background technique [0002] The gasification reaction of coal takes place between carbon and hydrogen and a gasification agent carrying oxygen (O 2 、H 2 O.CO 2 ) between a partial or incomplete oxidation reaction. Coal gasification technology is the industrial basis for the development of processes such as coal-to-gas, coal-to-oil, coal-based chemicals, and combined cycle power generation systems. Coal gasification existing fixed bed (W-G furnace, UGI furnace, Lurgi furnace), fluidized bed (Winkler furnace, CFB or PCFB circulating fluidized bed furnace, Ender furnace, U-gas furnace, etc.), entra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/56F16L55/07
CPCY02E20/18
Inventor 顾鸣海
Owner 顾鸣海
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