A vertical liquefied natural gas recondensation device
A technology of liquefied natural gas and recondensation, which is applied in the directions of liquefaction, refrigeration, liquefaction, and solidification, and can solve the problems of low recondensation efficiency of boil-off gas and difficult pressure control.
Active Publication Date: 2019-10-22
SINOPEC GUANGZHOU ENG CO LTD +1
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Problems solved by technology
[0006] In order to solve technical problems such as low evaporation gas recondensation efficiency and difficult pressure control existing in the prior art, the present invention provides a vertical liquefied natural gas recondensation device
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Embodiment Construction
[0023] The present invention will be further described below in conjunction with the accompanying drawings.
[0024] see Figure 1-7 , the vertical liquefied natural gas recondensation device provided by the present invention is mainly composed of a vertical outer cylinder 1 with heads at both ends, an LNG injection plate 10, an LNG redistribution plate 11, an isolation vertical plate 12 and a filler 16; the LNG injection The plate 10, the LNG redistribution plate 11 and the isolation vertical plate 12 are all arranged in the outer cylinder 1, the LNG injection plate 10, the LNG redistribution plate 11 are arranged coaxially with the outer cylinder 1 from top to bottom, and the LNG injection plate 10 is set On the inner wall of the outer cylinder close to the top end under the top end of the outer cylinder 1; the LNG redistribution plate 11 is arranged under the LNG injection plate 10 with a gap between them; the isolation vertical plate 12 is located on the LNG redistribution...
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Abstract
The invention discloses a vertical type liquefied natural gas (LNG) recondensation device which mainly consists of a vertical type outer barrel, a LNG jetting plate, a LNG redistribution plate, an isolation vertical plate and a filling; end sockets are arranged at the two ends of the vertical type outer barrel; the isolation vertical plate is located below the LNG redistribution plate and is vertically arranged on the end socket at the bottom end of the outer barrel to divide a middle lower part space of the outer barrel into a left side space and a right side space which are equal; the bottomof the left side space is isolated from the bottom of the right side space; the filling is arranged in the position, lower than the upper edge of the isolation vertical plate, of the upper part of the right side space; a LNG inlet is formed in the center of the end socket at the top end of the outer barrel; a bottom BOG inlet is formed in the part, at the bottom of the left side space, of the barrel wall of the outer barrel; a top BOG inlet is formed in the part, at a gas-liquid mixing space, of the barrel wall of the outer barrel; and a LNG outlet is formed in the part, at the right side space, of the barrel wall of the outer barrel. By adopting two times of condensation, the condensation efficiency of the vertical type liquefied natural gas recondensation device is improved to a great extent.
Description
technical field [0001] The invention belongs to the technical field of liquefied natural gas (LNG) processing, and in particular relates to a vertical liquefied natural gas (LNG) recondensing device. Background technique [0002] The liquefied natural gas receiving station is the terminal link in the LNG industry chain. It receives liquefied natural gas from the LNG ship and transports it to downstream users after storage and regasification. In the receiving station system, due to pump operation, environmental heat leakage and unloading Displacement effects, cold insulation of equipment pipelines, etc. will cause the liquefied natural gas at extremely low temperature (-162°C) to vaporize to produce boil-off gas (BOG). [0003] The BOG recovery and treatment process at the LNG receiving station mainly includes direct compression for export, condensing into LNG through a recondensation device, pressurization, gasification, and export. The direct compression and export process ...
Claims
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IPC IPC(8): F25J1/00C10L3/10
Inventor 王以斌常征何建明姚建军王文昊郭维军李战杰何龙辉王惠勤
Owner SINOPEC GUANGZHOU ENG CO LTD