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Heat-treatment method for storage tank body of large-scale total pressure type LPG carrying vessel

An overall heat treatment and transport ship technology, applied in heat treatment furnaces, heat treatment equipment, heat treatment process control, etc., can solve problems such as poor hot air flow, poor hot air fluidity, and obstruction of hot air flow, etc., to achieve heat treatment time The effect of shortening, good temperature control effect, and easy heating speed

Inactive Publication Date: 2007-08-08
WUHAN YIYE STEEL STRUCTURE
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The flue gas is exhausted by the exhaust device through the isolation cover and the air chamber port. Because the air inlet and the gas outlet are all located at the bottom of the storage tank, the fluidity of the hot air in the tank is not good, and the isolation cover also hinders the flow of hot air. , so the flow effect of hot air is not good, the heat treatment time is long, and fuel is wasted

Method used

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  • Heat-treatment method for storage tank body of large-scale total pressure type LPG carrying vessel

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Embodiment Construction

[0028] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples.

[0029] A method for integral heat treatment of a storage tank of a large full-pressure LPG carrier, which comprises the following steps:

[0030] 1) Before the heat treatment, put the manhole 2 and the deep well pump seat 4 of the storage tank at the bottom of the tank as the air inlet; the storage tank above the manhole is equipped with a second tank internal diversion device F 2 , the storage tank above the base of the deep well pump is provided with a first diversion device F in the tank 1 ;

[0031] The deflector in the tank includes an umbrella cover, a heat pipe 6, a deflector 7, and a support frame. One end of the heat pipe is fixed with an umbrella cover, and the other end of the heat pipe is fixed with a flow guide plate, and ...

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Abstract

The invention discloses an entire heat disposing method of compression typed LPG transporting ship reserving tank, which comprises the following steps: 1) setting human aperture and deep well pump seat in the lowest position of reserving tank as inlet hole; setting the liquid collecting groove opposite to deep well pump seat on the topest reserving tank; packing gas chamber hole; insulating the exterior of reserving tank through thermostable material; 2) placing two high-velocity fuel sprayers in the human inlet and deep well pump seat hole separately; adopting reserving tank bulk as combusting chamber and liquid-collecting groove as smoke exhaust hole; providing fuel and high-pressure atomized air in two high-velocity fuel sprayers; igniting two high-velocity fuel sprayers to heat reserving tank to 545-585 deg.c for 2-5h.

Description

technical field [0001] The invention relates to an overall heat treatment method for a full-pressure LPG carrier storage tank. Background technique [0002] Large full-pressure LPG carrier storage tank (1000m 3 -4000m 3 The characteristics of liquefied petroleum gas horizontal storage tank transport tank (LPG tank for short): (1) large size: 7.8m-9.2m in diameter, long tank length: 20m-31m; (2) special structure: for Horizontal storage tanks, the length is much larger than the diameter, and there are structures in the tank that hinder the flow of gas, such as swash tanks and T-shaped reinforcement rings; (3) There are few openings and asymmetry: there are only manholes and deep wells on the tank body. The air in the tank cannot form a stable and symmetrical convection environment for the pump seat, the liquid collection groove and the small connecting pipe on the air chamber. [0003] The overall heat treatment method of the existing large-scale full-pressure LPG carrier ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/00C21D1/34C21D11/00
Inventor 宋占江祝旭斌侯华东易昶胡超
Owner WUHAN YIYE STEEL STRUCTURE
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