Skid-mounted one-island-four-skid LNG loading and unloading vehicle

Abstract

The invention provides a skid-mounted one-island-four-skid LNG loading and unloading vehicle. The skid-mounted one-island-four-skid LNG loading and unloading vehicle is provided with a main body module, four low-temperature crane pipe modules and two local control cabinet modules; the main body module is provided with a liquid inlet main pipe and a gas return main pipe; a liquid phase pipeline isarranged between the liquid inlet main pipe and each of four corners of the main body module; a gas phase pipeline is arranged between the gas return main pipe and each of the four corners of the mainbody module; the four low-temperature crane pipe modules are distributed at the four corners of the main body module; each low-temperature crane pipe module is provided with a liquid phase branch anda gas phase branch; one ends of the liquid phase branches communicate with the liquid phase pipeline; the other ends of the liquid phase branches can communicate with a liquid inlet pipeline of an LNG tank car; one ends of the gas phase branches communicate with a gas return pipeline of the LNG tank car; the other ends of the gas liquid branches communicate with the gas phase pipelines; and the two local control cabinet modules are each connected with two low-temperature crane pipe modules through signals, and on-site operation and flow adjustment can be conducted. By means of the structure,operation is convenient and one to four LNG tank cars can be loaded at the same time.

Description

technical field [0001] The invention relates to an LNG tanker loading and unloading skid used in a tanker loading unit in an LNG receiving station or a liquefaction station. Background technique [0002] In the LNG receiving station or liquefaction station installation, the LNG tanker loading and unloading skid (TLP: Truck Loading&Unloading Package) is usually configured in the tanker loading unit. [0003] The existing LNG tanker loading and unloading skid includes: 1) skid part; 2) cryogenic crane pipe; 3) process pipeline (including liquid phase pipeline, gas phase pipeline, liquid collection pipeline, vent pipeline, nitrogen pipeline, instrument air pipeline, etc. ); 4) Shut-off valve, safety valve, flow meter, regulating valve, check valve, pull-off valve, etc.; 5) Local control panel; 6) Static grounding system; 7) Pipe support and cold insulation materials, etc. These systems are relatively complicated, and the manufacturer supplies parts in bulk, with thousands of p...

AI Technical Summary

Problems solved by technology

[0005] 1. The huge amount of construction and the long installation period seriously affect the progress of the on-site project;

[0006] 2. There are many spare parts, and it is easy to miss or lose parts on site;

[0007] 3. It is difficult for manufacturers to coordinate, and the cost of service labor is relatively high;

[0008] 4. The installation is complicated, and the requirements for installation instructors and on-site construction personnel are relatively high;

[0009] 5. Higher requirements for construction accuracy of civil foundations;

[0010] 6. Only one LNG tanker can be loaded and unloaded;

[0011] 7. Huge investment in equipment and poor economic benefits;

[0012] 8. Waste of factory land, resulting in tense layout;

[0013] 9. It cannot adapt to the development direction of large-scale and integrated devices, and the degree of device integration is poor

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