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Liquefied natural gas storage tank capable of preventing liquid from writhing and generating overpressure

A technology for liquefied natural gas and storage tanks, which is used in gas/liquid distribution and storage, fixed-capacity gas storage tanks, pressure vessels, etc. Resolve oversaturated effects

Active Publication Date: 2016-09-21
RIZHAO HAIDAER AERATING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tumbling caused a large amount of LNG (liquefied natural gas) to vaporize, the pressure of the storage tank increased and there was a danger of explosion
Existing methods of reducing tumbling in large storage tanks mostly use mechanical stirring or mechanical auxiliary circulation. However, this method consumes power

Method used

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  • Liquefied natural gas storage tank capable of preventing liquid from writhing and generating overpressure
  • Liquefied natural gas storage tank capable of preventing liquid from writhing and generating overpressure
  • Liquefied natural gas storage tank capable of preventing liquid from writhing and generating overpressure

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Experimental program
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Effect test

Embodiment 1

[0024] Such as Figure 1 to Figure 5 , a liquefied natural gas storage tank that prevents liquid from churning and overpressure.

[0025] The liquefied natural gas storage tank 10 of this embodiment is a circular storage tank with a diameter D of 9 meters, and an insulating layer 14 is provided around the storage tank.

[0026] There are 25 heat pipes 20 installed vertically in the liquefied natural gas storage tank.

[0027] Such as figure 2 , image 3 , Figure 4 As shown, the outer diameter of the heat pipe is provided with fins 21, the diameter of the heat pipe D1=50mm, the two ends of the heat pipe are spherical to adapt to the high pressure generated inside it under normal temperature conditions, and the outer radius of the fins R1=60mm. The heat pipe is made of 304 stainless steel, and the fins are aluminum alloy fins with good thermal conductivity. The working medium inside the heat pipe is natural gas, and the pressure of the working medium in the heat pipe is 6...

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Abstract

The invention relates to a liquefied natural gas storage tank capable of preventing liquid from writhing and generating overpressure. Heat pipes installed in the vertical direction are arranged in the liquefied natural gas storage tank. The lower ends of the heat pipes are connected with the tank bottom of the liquefied natural gas storage tank. The upper ends of the heat pipes are higher than the liquefied natural gas liquid level in the liquefied natural gas storage tank. The liquefied natural gas storage tank has the beneficial effects that heat is transmitted through the finned heat pipes with high heat conductivity, the temperature of bottom liquid and upper liquid in the liquefied natural gas storage tank is balanced, the situation that the bottom liquid of the storage tank is excessively saturated can be effectively avoided, and a writhing phenomenon of the storage tank is avoided.

Description

technical field [0001] The invention belongs to liquefied natural gas equipment, in particular to a liquefied natural gas storage tank for preventing liquid from churning and overpressure. Background technique [0002] With the popularity of natural gas applications, the application of liquefied natural gas has developed rapidly, and a large number of liquefied natural gas storage tanks have been used. The liquid in the large liquefied natural gas storage tank is caused by the overpressure of the liquid due to the difference in temperature between the upper and lower sides; or when the bottom of the storage tank is on fire, the bottom of the storage tank is rapidly heated and vaporized, and a large amount of gas is generated in the lower part of the storage tank, resulting in liquid in the liquefied natural gas storage tank. churning phenomenon. Due to the heat transfer at the bottom of the LNG storage tank, the heat introduced in the lower part cannot be effectively dissip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C1/00F17C13/00
CPCF17C1/00F17C13/002F17C2205/03F17C2221/033
Inventor 曲来生卢德亮
Owner RIZHAO HAIDAER AERATING EQUIP CO LTD
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