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Desulfurization chimney and manufacturing and mounting method thereof

An installation method and chimney technology, applied in separation methods, chemical instruments and methods, transportation and packaging, etc., can solve the problems of occupying a large cargo space, high LNG transformation costs, and difficult to predict the pressure of fuel costs in ship operation. Reasonable layout, high degree of design, high structural stability and high structural strength

Inactive Publication Date: 2020-08-07
广州文冲船舶修造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing countermeasures mainly include installing exhaust gas purification system (desulfurization device), using low-sulfur oil fuel, switching to LNG fuel, etc. However, due to the uncertain supply and price of fuel oil with 0.5% sulfur content in the future, the resulting The fuel cost pressure of ship operation is also difficult to predict. LNG conversion costs are high and take up a lot of cargo space. Therefore, in order to reduce operating costs, desulfurization devices are installed to pass seawater or NaOH / Mg(OH) 2 It is a more economical choice at this stage to reduce the emission of sulfur compounds on board by cleaning SOx in the exhaust gas with liquid etc.

Method used

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  • Desulfurization chimney and manufacturing and mounting method thereof
  • Desulfurization chimney and manufacturing and mounting method thereof
  • Desulfurization chimney and manufacturing and mounting method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Please refer to Figure 1-4 , figure 1 It is a schematic structural diagram of the desulfurization chimney described in Example 1 of the present invention, figure 2 forfigure 1 The schematic diagram of the cross-section of A-A is shown, image 3 for figure 1 The schematic diagram of the B-B direction cross-section is shown, Figure 4 for figure 1 The schematic cross-section of C-C is shown. As shown in the figure, Embodiment 1 of the present invention provides a desulfurization chimney, which includes a chimney assembly 10 and a desulfurization device 20 disposed in the chimney assembly 10 .

[0045] The chimney assembly 10 includes an upper section of the chimney and a lower section of the chimney, and the upper section of the chimney and the lower section of the chimney all include some chimney surrounding walls; the chimney surrounding walls include side wall panels 12, frames (not shown in the figure shown) and some platform boards 16, the platform boards 16 ...

Embodiment 2

[0056] Embodiment 2 of the present invention provides a method for manufacturing and installing a desulfurization chimney, which includes the following steps:

[0057] 1) Prefabrication and splicing of the chimney assembly 10: the side wall panels 12, the frame 14 and several platform panels 16 are spliced ​​and fixed to form the surrounding wall of the chimney, and are respectively spliced ​​on the tire frame to form the upper section of the chimney and the lower section of the chimney ;

[0058] 2) Prefabrication and installation of the desulfurization tower base 27: the base panel 272 and the base web 274 are respectively spliced ​​and fixed to form the desulfurization tower base 27, and the desulfurization tower base 27 is fixedly connected to the desulfurization tower base 26;

[0059] 3) Hoist the lower section of the chimney to the tire frame of the general group, position and fix it; lift the desulfurization tower 21 upright and hoist it into the lower section of the c...

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Abstract

The invention relates to a desulfurization chimney and a manufacturing and mounting method thereof. The desulfurization chimney comprises a chimney assembly and a desulfurization device arranged in the chimney assembly, the desulfurization device assembly is integrally arranged in the chimney assembly. The device arrangement is reasonable; the modularized design degree is high; and during ship desulfurization and installation, only the desulfurization chimney needs to serve as an independent unit to be hoisted onto a ship, and the pipeline connector of a desulfurization tower accessory is connected with the exhaust pipelines of a main engine and an auxiliary engine of an original ship to form a set of recyclable desulfurization system, so that the workload of dismounting or refitting the original ship is greatly reduced, the construction period is favorably shortened, and the refitting cost is saved. The manufacturing and mounting method is reasonable in process arrangement and convenient to operate, and device damage is not prone to occurring in the mounting process; good butt joint of the desulfurization chimney and an original ship structure can be guaranteed through positioningof the desulfurization tower and the desulfurization tower base, so the structural stability and the structural strength are high, and it is guaranteed that normal operation of the desulfurization tower is not affected.

Description

technical field [0001] The invention relates to the technical field of ship desulfurization, in particular to a desulfurization chimney and a manufacturing and installing method thereof. Background technique [0002] The International Maritime Organization (IMO) formally decided at the 70th session of the Marine Environment Protection Committee (MEPC70) that starting from January 1, 2020, ships sailing around the world can only use fuel oil with a sulfur content of no more than 0.5%. Meet this requirement to reduce sulfur dioxide (SOx) emissions in the exhaust. [0003] SOx in ship exhaust gas is a pollutant formed after the combustion of sulfur in fuel oil, and it is difficult to achieve the purpose of SOx emission control through the technical transformation of fuel oil combustion equipment (such as diesel engines, boilers, etc.), only through fuel pre-treatment and exhaust gas post-treatment Or use alternative fuels to control to reduce SOX emissions. [0004] The exist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/50B01D53/18B63H21/32
CPCB01D53/78B01D53/504B01D53/18B01D53/1481B01D53/1493B63H21/00B01D2252/1035B01D2251/304B01D2251/402B01D2251/604
Inventor 杨成杨坤荣农卫华钟伟怀马春清
Owner 广州文冲船舶修造有限公司
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