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A horizontal tank lng recondenser

A horizontal tank and condenser technology, which is applied in the field of liquefied natural gas vapor treatment, can solve the problems of strong liquid level fluctuations in vertical tanks, poor vertical structure stability, and single condensation means

Active Publication Date: 2021-05-04
SINOPEC GUANGZHOU ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To solve the technical problems in the prior art of single condensation means, strong liquid level fluctuations in the vertical tank, and poor stability of the vertical structure

Method used

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  • A horizontal tank lng recondenser
  • A horizontal tank lng recondenser
  • A horizontal tank lng recondenser

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Embodiment Construction

[0030] The structural layout, operation process and innovations of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] A horizontal tank LNG recondenser, the horizontal cylinder 1 is composed of a horizontal cylindrical cylinder and sealing heads at both ends thereof. The condensing space mainly includes two parts: BOG pre-cooling space 11 and stuffing condensing space 14. BOG pre-cooling space 11 is a constant liquid level in an overflow state, and the liquid level is located on the upper edge of middle partition 5. The liquid level of stuffing condensing space 14 is The fluctuating liquid level due to the change of processing capacity is about 100-150mm away from the upper edge of the middle partition plate 5; the horizontal cylinder 1 mainly includes the LNG injection plate 10, the BOG baffle plate 6 / 8 with holes at the right end, and the BOG with holes at the left end Baffle plate 7 / 9, inter...

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Abstract

The invention discloses a horizontal tank LNG recondenser. The tank structure is a horizontal cylinder, which mainly includes an LNG injection plate, a BOG baffle plate with a hole at the left end, a BOG baffle plate with a hole at the right end, and a middle partition plate, packing bottom plate, packing top plate; the present invention adopts the process of combining direct contact condensation and packing condensation, which is a process structure with higher condensation efficiency; the horizontal tank structure has a larger cross-sectional area, a lower height, and a higher structural stability. Well, the climbing height of the relevant supporting pipes is low, which is good for flow stability.

Description

technical field [0001] The invention belongs to the technical field of a liquefied natural gas (LNG) recondenser, and in particular relates to a liquefied natural gas boil-off gas (BOG) processing technology. Background technique [0002] The BOG recovery and treatment process at the LNG receiving station mainly includes direct compression and export, condensing into LNG through a recondenser, pressurization, gasification and export. The direct compression and export process requires downstream supporting low-pressure users or low-pressure export pipeline networks. However, the downstream export pipeline network of domestic LNG receiving stations is generally a high-pressure pipeline network and lacks related supporting industries, so all BOG gas is treated with recondensation process, and this process is often used abroad. [0003] When LNG evaporated gas adopts the recondensation recovery process, the recondenser is the main equipment in the process system, and plays a key...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L3/10
CPCC10L3/10
Inventor 王以斌常征姚建军丁梅峰王文昊郭维军李战杰何龙辉王惠勤
Owner SINOPEC GUANGZHOU ENG
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