Gas-liquid mixing device for liquefied natural gas (LNG)
A technology for liquefied natural gas and gas-liquid mixing, which is applied in the direction of mixers, mixing methods, fluid mixers, etc., can solve problems such as poor condensation effect and uneven mixing of LNG and BOG, and achieve the effect of promoting recondensation
Inactive Publication Date: 2018-03-27
SINOPEC GUANGZHOU ENG +1
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Problems solved by technology
[0005] In order to solve the technical problems of insufficient mixing of LNG and BOG and poor condensation effect existing in the prior art, the present invention provides a gas-liquid mixing device for liquefied natural gas (LNG)
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[0018] The present invention will be further described below in conjunction with the accompanying drawings.
[0019] see Figure 1~4 , the gas-liquid mixing device of the present invention is mainly composed of an outer cylinder body 13 with a head 1, a left side LNG inlet pipe 2 and a right side LNG inlet pipe 3, a BOG inlet pipe 4, and a buffer plate 5 arranged symmetrically at 180°. , injection plate 6 and injection pipe 7; the head 1, the buffer plate 5 and the injection plate 6 are arranged in sequence from top to bottom along the axial direction of the outer cylinder 13, and the head 1, the outer cylinder 13 and the buffer plate 5 jointly form a The BOG buffer space 8, the buffer plate 5, the outer cylinder body 13 and the injection plate 6 together form the LNG buffer space 9; the BOG inlet pipe 4 is arranged on the wall of the outer cylinder body of the BOG buffer space 8; the left LNG inlet pipe 2 and the right The side LNG inlet pipe 3 is arranged on the outer cylin...
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The invention discloses a gas-liquid mixing device for liquefied natural gas (LNG). The gas-liquid mixing device mainly comprises an outer cylinder body with an end enclosure, LNG inlet pipes, a BOG (Boil Off Gas) inlet pipe, a buffer plate, a sprinkling plate and sprinkling pipes, wherein the end enclosure, the outer cylinder body and the buffer plate jointly define a BOG buffer space; the bufferplate, the outer cylinder body and the sprinkling plate jointly define an LNG buffer space; the buffer plate is identical with the sprinkling plate in structure; mounting holes are separately formedin the buffer plate and the sprinkling plate; the sprinkling pipes are arranged in the mounting holes; the upper ends of the sprinkling pipes are higher than the upper surface of the buffer plate; thelower ends of the sprinkling pipes are flush with the lower surface of the sprinkling plate; liquid phase inlets are formed in the pipe walls, positioned in the LNG buffer space, of the sprinkling pipes; a pipe mouth in the upper end of each sprinkling pipe is a gaseous phase inlet; a pipe mouth in the lower end of each sprinkling pipe is a gas-liquid mixed phase outlet. According to the gas-liquid mixing device disclosed by the invention, BOG and LNG are subjected to gas-liquid forced mixing in the uniform distribution process, so that recondensation of the LNG and the BOG is promoted; meanwhile, uniform LNG and BOG distribution liquid is provided for packing condensation of a recondenser.
Description
technical field [0001] The invention belongs to the technical field of liquefied natural gas (LNG) processing, in particular to a liquefied natural gas (LNG) gas-liquid mixing device. Background technique [0002] When the LNG boil-off gas (BOG) adopts the recondensation recovery process, the recondenser is the main equipment in the process system, and plays a key role in the operation of the entire receiving station. Its main function is to provide sufficient contact between BOG and LNG Time and space prompt BOG to condense into LNG and act as the inlet buffer tank of the LNG high-pressure pump to ensure the inlet pressure of the high-pressure pump. [0003] The LNG recondenser is a type of tower, and its core gas-liquid contact components often use packing layers. The commonly used packing mainly includes randomly stacked packing Raschig rings, Pall rings, and structured packings. BOG and LNG are separated from the packing layer. The upper part enters the packing layer. ...
Claims
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IPC IPC(8): B01F5/02B01F15/02B01F3/04C10L3/10
CPCC10L3/10B01F23/213B01F25/27B01F35/7163B01F35/712
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