LNG (Liquefied Natural Gas) air bath gasification device

A gasifier and gasification tube technology, applied in pressure vessels, container filling methods, fixed-capacity gas storage tanks, etc., can solve the problem of limited frost layer suppression effect, and achieve the effect of suppressing frost formation

Active Publication Date: 2014-05-21
苏州聚慧邦专利运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the existing technology only suppresses frosting by improving the heat transfer efficiency as a whole, so that the effect of frost layer suppression is limited

Method used

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  • LNG (Liquefied Natural Gas) air bath gasification device
  • LNG (Liquefied Natural Gas) air bath gasification device
  • LNG (Liquefied Natural Gas) air bath gasification device

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Experimental program
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Embodiment Construction

[0020] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] like Figure 1-3 As shown, a new type of forced draft LNG air-bath vaporizer includes several gasification pipes 2 connected in series through U-shaped connecting pipes 3, and the air inlets of the gasification pipes 2 are connected in series through U-shaped connecting pipes 4 There is an anti-frost pipe connected with the LNG liquid inlet pipe, and the gasification pipe 2 is arranged in parallel with the anti-frost pipe body. The anti-frost tube includes an outer tube 101 and an inner tube 104 that are sheathed together. One end of the inner tube 104 is provided with an LNG liquid inlet and a liquid inlet pipe joint 102, and the end of the outer pipe 101 away from the liquid inlet is provided with a hemispherical tube A sealing plate 106 is provided at one end of the liquid inlet between the cap 105 , the outer tube 101 and the inner...

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Abstract

The invention discloses an LNG (Liquefied Natural Gas) air bath gasification device which can effectively inhibit a frosting phenomenon of a gas inlet pipe opening. The LNG air bath gasification device comprises a plurality of gasification pipes which are connected in series; gas inlets of the gasification pipes are connected in series with a frost prevention pipe which is communicated with an LNG liquid inlet pipe; gasification pipe bodies and a frost prevention pipe body are arranged in parallel; the frost prevention pipe comprises an outer pipe and an inner pipe which are sleeved together; an LNG liquid inlet is arranged at one end of the inner pipe; a semispherical pipe cap is arranged at one end, which is far away from the liquid inlet, of the outer pipe; a sealing plate is arranged at one end of the liquid inlet and between the outer pipe and the inner pipe and is provided with a liquid outlet.

Description

technical field [0001] The invention relates to an LNG air-bath vaporizer. Background technique [0002] The function of the LNG vaporizer is to absorb heat and vaporize the liquefied natural gas at -162°C in the LNG tank into gaseous natural gas. At present, air bath gasifiers are widely used, and air is used as the heat source. During the heat exchange process, low temperature and low pressure appear around the gasifier pipe shell, and high temperature and high pressure appear outside the gasifier, and the air pressure difference forms natural convection, realizing low temperature. Air replacement. However, in actual use, when the ambient temperature is low, frosting will occur on the gasification tube at the LNG inlet section, which reduces the heat exchange efficiency. [0003] In order to be able to suppress frosting, the existing technology adopts methods such as setting an external heat source, blowing fans to forcefully replace low-temperature air, and the like. F...

Claims

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Application Information

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IPC IPC(8): F17C7/04F17C13/10
Inventor 沈滨唐文献张磊张建秦文龙
Owner 苏州聚慧邦专利运营有限公司
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