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Liquefied natural gas vaporizer and production device and method thereof

A technology of liquefied natural gas and vaporizer, which is applied in the direction of welding equipment, auxiliary welding equipment, metal processing equipment, etc., can solve the problems of affecting the service life of the heat exchanger, not being able to exchange heat with seawater, and not being able to conduct reasonable heat exchange with uniform standpipes, etc., to achieve increased Heat exchange efficiency, increase heat exchange capacity, and ensure the effect of service life

Active Publication Date: 2014-10-08
SHANDONG NOLLVETEC LIGHTWEIGHT EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the original heat exchanger is made of steel, which ensures that the heat exchanger can withstand a certain pressure, but because seawater is corrosive, it will affect the service life of the heat exchanger
And its cylindrical standpipe structure cannot make good use of seawater poured from the side for heat exchange
The horizontal pipes are connected to multiple vertical pipes, and it is impossible to perform reasonable heat exchange on each vertical pipe evenly. It often happens that part of the gaseous natural gas pushes the liquid natural gas out of the heat exchanger.

Method used

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  • Liquefied natural gas vaporizer and production device and method thereof
  • Liquefied natural gas vaporizer and production device and method thereof
  • Liquefied natural gas vaporizer and production device and method thereof

Examples

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Effect test

Embodiment 1

[0069] Such as Figure 1-19 shown, see figure 1 and figure 2 , a kind of liquefied natural gas vaporizer among the present invention, comprises lower transverse pipe 1, vertical pipe 2, upper transverse pipe 3, injection pipe 15 and cooling fin. The lower tube hole 131 of the lower horizontal tube 1 is welded and communicated with the bottom of the vertical tube 2 through the welded tube 20, and the top of the vertical tube 2 is welded and communicated with the upper tube hole 31 of the upper horizontal tube 3 through the welded tube 20. The upper horizontal tube 3 and the lower horizontal tube 1 are provided with a plurality of standpipes. The plurality of lower horizontal pipes 1 communicate with each other through the lower connecting pipe 11, and the lower connecting pipe 11 is used for flowing in liquid natural gas. The upper horizontal pipes 3 communicate with each other through the upper connecting pipe 31, and the upper connecting pipe 31 is used for air outlet.

...

Embodiment 2

[0082] Such as Figures 20-24 shown, see Figure 20, an integral welding tool for a liquefied natural gas vaporizer in the present invention, comprising a left plate 41 , a middle plate 42 and a right plate 43 . The left plate 41 and the right plate 43 are used to discharge the vertical pipes 2 (not shown) at equal intervals and weld a whole series of vertical pipes 2 with the fourth cooling fin 25, and weld the whole series of vertical pipes 2 placed on the middle board 42. The middle plate 42 is used to weld a whole series of vertical pipes 2 with the upper horizontal pipe 3 and the lower horizontal pipe 1 into one body.

[0083] Such as Figure 22 As shown, the right end of the left plate 41 is hingedly connected with the left end of the middle plate 42 , and the right end of the middle plate 42 is hingedly connected with the left end of the right plate 43 . The lower surface of the clamp 411 on the left plate is provided with U-shaped grooves at equal intervals, and th...

Embodiment 3

[0099] Such as Figure 25 and 26 shown, see Figure 25 , a perforated transport clamp for round pipes in the present invention, including a clamp connecting plate 51 and a quick clamp 52 . A plurality of quick clamps 52 are arranged on the clamp connecting plate 51 . A plurality of quick clamps 52 cooperate with the clamp connecting plate 51 to clamp the round tube 263 together to ensure that round tube holes 2631 are provided radially on the round tube 263 with a smaller diameter and longer length.

[0100] Such as Figure 26 As shown, the clamp connecting plate 51 is arranged in the left and right directions, and the front end of the clamp connecting plate 51 is provided with grooves along the left and right directions, and the shape of the groove matches the shape of the outer peripheral surface of the round tube 263 .

[0101] Such as Figure 26 As shown, the quick clamp 52 includes a lever 521 , a small connecting rod 522 , a vertical connecting rod 5231 , a horizont...

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Abstract

The invention relates to a liquefied natural gas vaporizer and a production device and method thereof and relates to a heat exchange device, in particular to a heat exchanger used converting natural gas from the liquid state to the gas state. The liquefied natural gas vaporizer is simple in structure, low in cost, corrosion-resistant, good in heat exchange effect, capable of well utilizing lateral pouring seawater and even in heat exchange. Second radiating fins (23) and third radiating fins (24) which are arranged on the front side of the liquefied natural gas vaporizer deviate forwards relative to the radial direction, and second radiating fins (23) and third radiating fins (24) which are arranged on the rear side deviate backwards relative to the radial direction. An upper transverse pipe (3), a lower transverse pipe (1) and vertical pipes (2) are all made of aluminum alloy.

Description

technical field [0001] The invention relates to a heat exchange device, in particular to a heat exchanger for converting natural gas liquid into gaseous state. Background technique [0002] With the further development of energy, natural gas has replaced part of the role of petroleum due to its lower emissions and lower prices. However, in the transportation of natural gas, gaseous natural gas is often liquefied to form liquefied natural gas to facilitate transportation. After arriving at the destination, the liquid natural gas is vaporized. [0003] In the process, the heat exchanger and its supporting equipment for converting liquefied natural gas into gas will also develop rapidly in the near future. At present, heat exchangers at home and abroad are connected with several vertical pipes between the upper and lower horizontal pipes to increase the heat exchange area and realize the rapid conversion of liquefied natural gas into gaseous natural gas. [0004] Usually, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D1/053B23K37/04
Inventor 张培良赵志升范圣文王梓刘家斌
Owner SHANDONG NOLLVETEC LIGHTWEIGHT EQUIP CO LTD
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