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Liquefied natural gas gasifier fixedly connected with inner heat exchange fins and retractable outer heat exchange fins

A technology of liquefied natural gas and heat exchange fins, which is applied in the field of vaporizers and liquefied natural gas vaporizers, can solve the problems of slow loss of cooling capacity and constant gas transmission speed, and achieve fast gasification speed and good heat absorption effect Effect

Inactive Publication Date: 2016-01-20
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a gasification of liquefied natural gas with inner heat exchange fins and retractable outer heat exchange fins fixedly connected with inner heat exchange fins and retractable outer heat exchange fins, in which the cooling capacity can be quickly lost when liquefied natural gas flows through the gasification section, and the gas transmission speed can be adjusted according to needs The device solves the problems of the existing liquefied natural gas vaporizers that the cooling capacity is slow to lose and the gas delivery speed can only be constant

Method used

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  • Liquefied natural gas gasifier fixedly connected with inner heat exchange fins and retractable outer heat exchange fins
  • Liquefied natural gas gasifier fixedly connected with inner heat exchange fins and retractable outer heat exchange fins
  • Liquefied natural gas gasifier fixedly connected with inner heat exchange fins and retractable outer heat exchange fins

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Embodiment 1

[0032] Embodiment one, see figure 1 , a liquefied natural gas vaporizer fixedly connected with inner heat exchange fins and retractable outer heat exchange fins, comprising a vaporization pipe 1 and a delivery pump 5 . The gasification tube 1 is a circular tube. The chemical tube 1 includes several gasification sections 13 and bending sections 14 . The gasification section 13 and the bending section 14 are arranged at intervals so that the gasification tube 1 forms a folded structure. The outer surface of the gasification section 13 is provided with several outer heat exchange fins 7 . The outer heat exchange fins 7 are distributed along the circumference of the gasification section 13 . The outer heat exchange fins 7 are welded together with the gasification section 13 . Delivery pump 5 is existing structure. The feed pump 5 includes a pump housing 52 . Both ends of the pump casing 52 are provided with a delivery pump body 53 and a motor 54 . The motor 54 is a speed-re...

Embodiment 2

[0034] Embodiment two, the difference with embodiment one is:

[0035] see figure 2 , The gasification section 13 is provided with a number of internal heat exchange fins 9 . The inner heat exchange fins 9 and the gasification section 13 are integrally connected together. The outer heat exchange fins 7 include three heat absorbing plates. The three heat absorbing plates are distributed as the innermost heat absorbing plate 72-3, the middle layer heat absorbing plate 72-2 and the outermost heat absorbing plate 72-1. The stretchable formations are sheathed together between adjacent heat absorbing plates 72 . The outermost heat absorbing plate 72-1 is welded together with the gasification section 13, and the rest of the heat absorbing plates are disconnected from the gasification section.

[0036] see image 3 , The delivery pump 5 also includes a pump shaft 51 . The pump shaft 51 is supported by the pump casing 52 via two bearings 55 . A refueling chamber 56 is formed be...

Embodiment 3

[0047] Embodiment three, the difference with embodiment two is:

[0048] see Figure 10 , A number of outlet holes 11 are provided on the peripheral surface of the outlet end 16 of the gasification tube. A tube base 12 is connected to the outer end of the air outlet hole 11 . The tube base 12 and the outlet end 16 of the gasification tube are welded together. The inner pipe 4 is pierced in the air outlet hole 11 . The inner end of the inner tube 4 is provided with a flange 41 . The inner tube 4 passes through the tube base 12 and then passes into and out of the trachea 2 .

[0049] see Figure 11 , the flange 41 is hooked on the inner peripheral surface of the outlet end 16 of the gasification tube. The flange 41 and the inner peripheral surface of the outlet end 16 of the gasification tube are only connected together by abutting. The junctions of the pipe base 12 , the inner pipe 4 and the outlet pipe 2 are welded together to form a weld 6 . The weld seam 6 seals and ...

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Abstract

The invention relates to a gasifier, in particular to a liquefied natural gas gasifier fixedly connected with inner heat exchange fins and retractable outer heat exchange fins. The liquefied natural gas gasifier comprises a gasification pipe and a speed-adjustable delivery pump; the gasification pipe comprises multiple gasification sections and bent sections; the gasification sections and the bent sections are arranged at intervals to form a returning structure; the multiple outer heat exchange fins are arranged on the outer surfaces of the gasification sections; the multiple inner heat exchange fins are arranged inside the gasification sections; the inner heat exchange fins and the gasification sections are connected into a whole; the outer heat exchange fins comprise at least two heat dissipation plates; the adjacent heat dissipation plates are retractably connected together in the radial direction of the gasification sections in a sleeving mode; only one of the heat dissipation plates is welded to the gasification sections together. The liquefied natural gas gasifier has the advantages that cold can be rapidly dissipated when the liquefied natural gas flow passes through the gasification sections, and gas delivery speed can be adjusted as required. The problems of slow cold dissipation and constant gas delivery speed of existing liquefied natural gas gasifiers are solved.

Description

technical field [0001] The invention relates to a vaporizer, in particular to a liquefied natural gas vaporizer with an inner heat exchange fin and a retractable outer heat exchange fin fixedly connected thereto, and belongs to the technical field of liquefied natural gas transportation. Background technique [0002] Liquefied natural gas is transported to the gas storage station by a special liquefied gas transport vehicle after the temperature is lowered below minus 140 degrees, and loaded into the low-temperature insulation tank of the gas storage station. The gas storage tank (actually stored in a liquid state) flows out the liquid liquefied natural gas through the pipe, and then exchanges the cooling capacity with the external environment through the liquefied natural gas vaporizer, so that the temperature of the liquefied gas rises, so as to realize the exit at the outlet section of the vaporizer Gaseous natural gas is then supplied to users through pipelines. In the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C7/04
Inventor 高良军朱根民高建丰张红玉竺振宇
Owner ZHEJIANG OCEAN UNIV
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