A pre-refrigerant compression skid-mounted module for liquefied natural gas

A technology of liquefied natural gas and pre-refrigerant, applied in liquefaction, refrigeration and liquefaction, equipment loaded into pressure vessels, etc., can solve problems such as difficult reasonable layout and installation, high lubricating oil temperature, increased process resistance, etc., to achieve space The effect of improving utilization rate, shortening pipeline length and reducing flow resistance

Active Publication Date: 2016-03-02
江苏富瑞能源服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this decentralized structure has some disadvantages: 1. The structure is scattered, which is difficult to arrange and install reasonably; 2. The pipeline connection is long, the process resistance increases, and the heat leakage is difficult to control
In addition, the pre-refrigerant compressor works for a long time, and the oil temperature of the lubricating oil is very high, which reduces the lubrication effect

Method used

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  • A pre-refrigerant compression skid-mounted module for liquefied natural gas

Examples

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Embodiment Construction

[0015] The present invention will be further described in detail below through specific embodiments.

[0016] Such as figure 1 As shown, a pre-refrigerant compression skid-mounted module for liquefied natural gas includes a skid-mounted frame, a pre-refrigerant compressor 7, a compressor lubrication system 8, and a lubricating oil cooling heat exchanger integrated on the skid-mounted frame 6. Pre-refrigerant filter, compressor lubricating oil fine separator 5 and pre-refrigerant storage tank 4.

[0017] The skid-mounted frame is in the shape of a rectangular parallelepiped. The skid-mounted frame includes a bottom frame 2, a top frame 1, and eight intermediate connecting rods 3 connecting the top frame 1 and the bottom frame 2, the bottom frame 2, the top frame 1 and the connecting rods. 3 are welded and fixed to each other. The eight middle connecting rods 3 are evenly distributed on both sides of the bottom frame 2 and the top frame 1. The middle connecting rods 3 divide the ski...

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Abstract

The invention discloses a pre-refrigerant compression skid-mounted module for liquefied natural gas, comprising a skid-mounted frame, a pre-refrigerant compressor integrated on the skid-mounted frame, a compressor lubrication system, a lubricating oil cooling heat exchanger, Pre-refrigerant filter, compressor lubricating oil fine separator and pre-refrigerant storage tank, the skid-mounted module has compact structure, high space utilization rate, shortens pipeline length, reduces flow resistance, and increases energy utilization rate.

Description

Technical field [0001] The invention relates to a pre-refrigerant compression skid-mounted module, which is used in a liquefaction device for liquefying natural gas. Background technique [0002] Liquefied natural gas is formed by liquefying gaseous natural gas after pre-cooling and cryogenic cooling using a liquefaction device. The current pre-cooling generally uses a pre-refrigerant for pre-cooling. The conventional pre-refrigerant supply system includes a pre-refrigerant compressor, a filter and a storage tank. These components are discretely distributed around the pre-cooling module of the liquefaction unit. Provide liquid pre-refrigerant. However, this decentralized structure has the following shortcomings: 1. The structure is scattered, which makes it difficult to rationally arrange and install; 2. The pipeline connection is long, the flow resistance increases, and the heat leakage is difficult to control. In addition, the pre-refrigerant compressor works for a long time,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25J1/02F17C5/02
CPCF25J1/0022F25J1/0052F25J1/0212F25J1/0259F25J1/0296
Inventor 殷劲松倪中华易红江金华刘晓军马金亮严岩郭道峰林元载
Owner 江苏富瑞能源服务有限公司
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