LNG (Liquefied Natural Gas) gasifier

A gasifier and natural gas technology, applied in the field of LNG gasifier, can solve the problems of low heat exchange efficiency and gasification efficiency, and achieve the effect of improving heat exchange efficiency and ensuring gasification efficiency

Pending Publication Date: 2022-07-29
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of low heat exchange efficiency and gasification efficiency, the invention provides an LNG gasifier

Method used

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  • LNG (Liquefied Natural Gas) gasifier
  • LNG (Liquefied Natural Gas) gasifier
  • LNG (Liquefied Natural Gas) gasifier

Examples

Experimental program
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specific Embodiment approach

[0018] Referring to the accompanying drawings, the specific embodiments are as follows:

[0019] like figure 1 As shown, an LNG gasifier includes a tube box 1, a shell 2 and a heat exchange tube bundle. The heat exchange tube bundle includes a tube sheet 3, a support plate 12 and a plurality of U-shaped tubes 4. The two ends of the tube sheet 3 are respectively connected to The tube box 1 is connected to the shell 2, the support plate 12 and a plurality of U-shaped tubes 4 are located inside the shell 2, the two ends of the U-shaped tubes 4 are respectively connected with different through holes on the tube plate 3, and the U-shaped tubes 4 pass through. It is provided on the support plate 12 , and the support plate 12 is connected with the inner wall of the housing 2 , so as to support and fix the plurality of U-shaped tubes 4 .

[0020] like figure 1 As shown, the pipe box 1 is divided into an air inlet chamber and an air outlet chamber, the side wall of the air inlet cham...

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Abstract

An LNG vaporizer comprises a tube box, a shell and a heat exchange tube bundle, the heat exchange tube bundle comprises a tube plate, a supporting plate and a plurality of U-shaped tubes, turbulent flow devices are arranged in the U-shaped tubes in a penetrating mode, the turbulent flow devices extend in the length direction of the U-shaped tubes, the turbulent flow devices are spiral twisted belts or spiral coils, the spiral axes of the turbulent flow devices coincide with the axes of the U-shaped tubes, and the spiral twisted belts or the spiral coils are arranged in the U-shaped tubes. The two ends of the turbulent flow device are welded to the inner walls of the two ends of the U-shaped pipe respectively, a spiral channel is separated in an inner hole of the U-shaped pipe through the spiral twisted belt, and a spiral protrusion is formed on the inner wall of the U-shaped pipe through the spiral coil. The LNG can smoothly flow in the heat exchange tubes under the shunting and guiding effects of the turbulent flow devices, uniform flow of the LNG and gasified natural gas in the heat exchange tubes is guaranteed, the situation that heat exchange is affected due to the fact that local LNG or natural gas flows at a low speed is avoided, full heat exchange of the whole section in the U-shaped tube is guaranteed, the heat exchange efficiency of the heat exchange tube bundle is improved, and the heat exchange efficiency of the heat exchange tube bundle is improved. And the gasification efficiency of the LNG is ensured.

Description

technical field [0001] The invention relates to the field of gasifiers, in particular to an LNG gasifier. Background technique [0002] Common LNG vaporizers include open-frame vaporizers, submerged combustion vaporizers, intermediate fluid vaporizers, shell-and-tube vaporizers, printed circuit board heat exchangers, air-temperature vaporizers, and forced ventilation. Type vaporizer, hot air heating vaporizer, intermediate medium air temperature vaporizer, hot water bath vaporizer, etc. [0003] Restricted by space size, marine LNG vaporizers are mainly shell-and-tube vaporizers and printed circuit board heat exchangers. Shell and tube heat exchangers are widely used in petrochemical, shipbuilding, metallurgy, naval, electric power and other industries, and have the advantages of low price, safety and reliability, and convenient operation and maintenance. However, the size and weight of the conventional shell-and-tube gasifier are large, and the length of the heat exchange...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C9/02F28D7/06F28F9/24
CPCF17C9/02F28D7/06F28F9/24F17C2221/033F17C2223/0161F17C2223/033F17C2225/0123F17C2227/0388F17C2227/0302
Inventor 曾东李培跃李演楷刘向前余巍
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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